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Merge branch 'nvmf-4.8-rc' of git://git.infradead.org/nvme-fabrics into for-linus
[linux.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <[email protected]>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
0c9ca11b 6 * Copyright 2015-2016 Intel Deutschland GmbH
55682965
JB		 7 */
8
9#include <linux/if.h>
10#include <linux/module.h>
11#include <linux/err.h>
5a0e3ad6 12#include <linux/slab.h>
55682965
JB		 13#include <linux/list.h>
14#include <linux/if_ether.h>
15#include <linux/ieee80211.h>
16#include <linux/nl80211.h>
17#include <linux/rtnetlink.h>
18#include <linux/netlink.h>
2a519311 19#include <linux/etherdevice.h>
463d0183 20#include <net/net_namespace.h>
55682965
JB		 21#include <net/genetlink.h>
22#include <net/cfg80211.h>
463d0183 23#include <net/sock.h>
2a0e047e 24#include <net/inet_connection_sock.h>
55682965
JB		 25#include "core.h"
26#include "nl80211.h"
b2e1b302 27#include "reg.h"
e35e4d28 28#include "rdev-ops.h"
55682965 29
5fb628e9
JM		 30static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
31 struct genl_info *info,
32 struct cfg80211_crypto_settings *settings,
33 int cipher_limit);
34
f84f771d 35static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 36 struct genl_info *info);
f84f771d 37static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 38 struct genl_info *info);
39
55682965
JB		 40/* the netlink family */
41static struct genl_family nl80211_fam = {
fb4e1568
MH		 42 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
43 .name = NL80211_GENL_NAME, /* have users key off the name instead */
44 .hdrsize = 0, /* no private header */
45 .version = 1, /* no particular meaning now */
55682965 46 .maxattr = NL80211_ATTR_MAX,
463d0183 47 .netnsok = true,
4c476991
JB		 48 .pre_doit = nl80211_pre_doit,
49 .post_doit = nl80211_post_doit,
55682965
JB		 50};
51
2a94fe48
JB		 52/* multicast groups */
53enum nl80211_multicast_groups {
54 NL80211_MCGRP_CONFIG,
55 NL80211_MCGRP_SCAN,
56 NL80211_MCGRP_REGULATORY,
57 NL80211_MCGRP_MLME,
567ffc35 58 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 59 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
60};
61
62static const struct genl_multicast_group nl80211_mcgrps[] = {
71b836ec
JB		 63 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
64 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
65 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
66 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
67 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
2a94fe48 68#ifdef CONFIG_NL80211_TESTMODE
71b836ec 69 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
2a94fe48
JB		 70#endif
71};
72
89a54e48
JB		 73/* returns ERR_PTR values */
74static struct wireless_dev *
75__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 76{
89a54e48
JB		 77 struct cfg80211_registered_device *rdev;
78 struct wireless_dev *result = NULL;
79 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
80 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
81 u64 wdev_id;
82 int wiphy_idx = -1;
83 int ifidx = -1;
55682965 84
5fe231e8 85 ASSERT_RTNL();
55682965 86
89a54e48
JB		 87 if (!have_ifidx && !have_wdev_id)
88 return ERR_PTR(-EINVAL);
55682965 89
89a54e48
JB		 90 if (have_ifidx)
91 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
92 if (have_wdev_id) {
93 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
94 wiphy_idx = wdev_id >> 32;
55682965
JB		 95 }
96
89a54e48
JB		 97 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
98 struct wireless_dev *wdev;
99
100 if (wiphy_net(&rdev->wiphy) != netns)
101 continue;
102
103 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
104 continue;
105
53873f13 106 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
89a54e48
JB		 107 if (have_ifidx && wdev->netdev &&
108 wdev->netdev->ifindex == ifidx) {
109 result = wdev;
110 break;
111 }
112 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
113 result = wdev;
114 break;
115 }
116 }
89a54e48
JB		 117
118 if (result)
119 break;
120 }
121
122 if (result)
123 return result;
124 return ERR_PTR(-ENODEV);
55682965
JB		 125}
126
a9455408 127static struct cfg80211_registered_device *
878d9ec7 128__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 129{
7fee4778
JB		 130 struct cfg80211_registered_device *rdev = NULL, *tmp;
131 struct net_device *netdev;
a9455408 132
5fe231e8 133 ASSERT_RTNL();
a9455408 134
878d9ec7 135 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 136 !attrs[NL80211_ATTR_IFINDEX] &&
137 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 138 return ERR_PTR(-EINVAL);
139
878d9ec7 140 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 141 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 142 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 143
89a54e48
JB		 144 if (attrs[NL80211_ATTR_WDEV]) {
145 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
146 struct wireless_dev *wdev;
147 bool found = false;
148
149 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
150 if (tmp) {
151 /* make sure wdev exists */
53873f13 152 list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) {
89a54e48
JB		 153 if (wdev->identifier != (u32)wdev_id)
154 continue;
155 found = true;
156 break;
157 }
89a54e48
JB		 158
159 if (!found)
160 tmp = NULL;
161
162 if (rdev && tmp != rdev)
163 return ERR_PTR(-EINVAL);
164 rdev = tmp;
165 }
166 }
167
878d9ec7
JB		 168 if (attrs[NL80211_ATTR_IFINDEX]) {
169 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7a087e74 170
7f2b8562 171 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 172 if (netdev) {
173 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 174 tmp = wiphy_to_rdev(
175 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 176 else
177 tmp = NULL;
178
7fee4778
JB		 179 /* not wireless device -- return error */
180 if (!tmp)
181 return ERR_PTR(-EINVAL);
182
183 /* mismatch -- return error */
184 if (rdev && tmp != rdev)
185 return ERR_PTR(-EINVAL);
186
187 rdev = tmp;
a9455408 188 }
a9455408 189 }
a9455408 190
4f7eff10
JB		 191 if (!rdev)
192 return ERR_PTR(-ENODEV);
a9455408 193
4f7eff10
JB		 194 if (netns != wiphy_net(&rdev->wiphy))
195 return ERR_PTR(-ENODEV);
196
197 return rdev;
a9455408
JB		 198}
199
200/*
201 * This function returns a pointer to the driver
202 * that the genl_info item that is passed refers to.
a9455408
JB		 203 *
204 * The result of this can be a PTR_ERR and hence must
205 * be checked with IS_ERR() for errors.
206 */
207static struct cfg80211_registered_device *
4f7eff10 208cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 209{
5fe231e8 210 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 211}
212
55682965 213/* policy for the attributes */
8cd4d456 214static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 215 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
216 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 217 .len = 20-1 },
31888487 218 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 219
72bdcf34 220 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 221 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 222 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
223 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
224 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
225
b9a5f8ca
JM		 226 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
227 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
228 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
229 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 230 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 231 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 232
233 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
234 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
235 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 236
e007b857
EP		 237 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
238 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 239
b9454e83 240 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 241 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
242 .len = WLAN_MAX_KEY_LEN },
243 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
244 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
245 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 246 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 247 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 248
249 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
250 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
251 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_DATA_LEN },
253 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
254 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 255 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
256 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
257 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
258 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
259 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 260 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 261 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 262 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 263 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 264 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 265 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 266
b2e1b302
LR		 267 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
268 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
269
9f1ba906
JM		 270 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
271 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
272 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 273 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
274 .len = NL80211_MAX_SUPP_RATES },
50b12f59 275 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 276
24bdd9f4 277 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 278 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 279
6c739419 280 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 281
282 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
283 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
284 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 285 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
286 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 287
288 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
289 .len = IEEE80211_MAX_SSID_LEN },
290 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
291 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 292 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 293 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 294 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 295 [NL80211_ATTR_STA_FLAGS2] = {
296 .len = sizeof(struct nl80211_sta_flag_update),
297 },
3f77316c 298 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 299 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
300 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 301 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
302 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
303 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 304 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 305 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 306 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
307 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 308 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
309 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 310 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 311 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
312 .len = IEEE80211_MAX_DATA_LEN },
313 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 314 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 315 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 316 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 317 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 318 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
319 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 320 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 321 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
322 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 323 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 324 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 325 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 326 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 327 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 328 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 329 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 330 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 331 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 332 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
333 .len = IEEE80211_MAX_DATA_LEN },
334 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
335 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 336 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 337 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 338 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 339 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
341 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
342 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
343 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 344 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 345 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 346 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
347 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 348 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 349 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
350 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
351 .len = NL80211_HT_CAPABILITY_LEN
352 },
1d9d9213 353 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 354 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 355 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 356 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 357 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 358 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 359 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 360 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 361 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
362 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 363 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
364 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 365 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
366 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 367 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 368 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
369 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
370 .len = NL80211_VHT_CAPABILITY_LEN,
371 },
355199e0
JM		 372 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
373 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
374 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 375 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 376 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
377 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
378 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 379 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
380 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 381 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
382 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 383 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 384 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 385 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
386 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
387 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 388 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
389 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 390 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
391 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 392 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
18e5ca65 393 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 394 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 395 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 396 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
397 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
398 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 399 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 400 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
1bdd716c 401 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
4b681c82 402 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
9c748934 403 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
05050753 404 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
34d50519 405 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
38de03d2 406 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
17b94247 407 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
c6e6a0c8
AE		 408 [NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
409 .len = VHT_MUMIMO_GROUPS_DATA_LEN
410 },
411 [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = { .len = ETH_ALEN },
55682965
JB		 412};
413
e31b8213 414/* policy for the key attributes */
b54452b0 415static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 416 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 417 [NL80211_KEY_IDX] = { .type = NLA_U8 },
418 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 419 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 420 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
421 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 422 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 423 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
424};
425
426/* policy for the key default flags */
427static const struct nla_policy
428nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
429 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
430 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 431};
432
ff1b6e69
JB		 433/* policy for WoWLAN attributes */
434static const struct nla_policy
435nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
436 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
437 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
438 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
439 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 440 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
441 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
442 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
443 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 444 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 445 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 446};
447
448static const struct nla_policy
449nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
450 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
451 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
452 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
453 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
454 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
455 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
456 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
457 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
458 },
459 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
460 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
461 },
462 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
463 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
464 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 465};
466
be29b99a
AK		 467/* policy for coalesce rule attributes */
468static const struct nla_policy
469nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
470 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
471 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
472 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
473};
474
e5497d76
JB		 475/* policy for GTK rekey offload attributes */
476static const struct nla_policy
477nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
478 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
479 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
480 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
481};
482
a1f1c21c
LC		 483static const struct nla_policy
484nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 485 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 486 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 487 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 488};
489
3b06d277
AS		 490static const struct nla_policy
491nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
492 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
493 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
494};
495
38de03d2
AS		 496static const struct nla_policy
497nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
498 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
499 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
500 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
501 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
502 },
503};
504
97990a06
JB		 505static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
506 struct netlink_callback *cb,
507 struct cfg80211_registered_device **rdev,
508 struct wireless_dev **wdev)
a043897a 509{
97990a06 510 int err;
a043897a 511
97990a06 512 rtnl_lock();
a043897a 513
97990a06
JB		 514 if (!cb->args[0]) {
515 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
516 nl80211_fam.attrbuf, nl80211_fam.maxattr,
517 nl80211_policy);
518 if (err)
519 goto out_unlock;
67748893 520
97990a06
JB		 521 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
522 nl80211_fam.attrbuf);
523 if (IS_ERR(*wdev)) {
524 err = PTR_ERR(*wdev);
525 goto out_unlock;
526 }
f26cbf40 527 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 528 /* 0 is the first index - add 1 to parse only once */
529 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 530 cb->args[1] = (*wdev)->identifier;
531 } else {
c319d50b
JB		 532 /* subtract the 1 again here */
533 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 534 struct wireless_dev *tmp;
67748893 535
97990a06
JB		 536 if (!wiphy) {
537 err = -ENODEV;
538 goto out_unlock;
539 }
f26cbf40 540 *rdev = wiphy_to_rdev(wiphy);
97990a06 541 *wdev = NULL;
67748893 542
53873f13 543 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
97990a06
JB		 544 if (tmp->identifier == cb->args[1]) {
545 *wdev = tmp;
546 break;
547 }
548 }
67748893 549
97990a06
JB		 550 if (!*wdev) {
551 err = -ENODEV;
552 goto out_unlock;
553 }
67748893
JB		 554 }
555
67748893 556 return 0;
97990a06 557 out_unlock:
67748893
JB		 558 rtnl_unlock();
559 return err;
560}
561
97990a06 562static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 563{
67748893
JB		 564 rtnl_unlock();
565}
566
f4a11bb0
JB		 567/* IE validation */
568static bool is_valid_ie_attr(const struct nlattr *attr)
569{
570 const u8 *pos;
571 int len;
572
573 if (!attr)
574 return true;
575
576 pos = nla_data(attr);
577 len = nla_len(attr);
578
579 while (len) {
580 u8 elemlen;
581
582 if (len < 2)
583 return false;
584 len -= 2;
585
586 elemlen = pos[1];
587 if (elemlen > len)
588 return false;
589
590 len -= elemlen;
591 pos += 2 + elemlen;
592 }
593
594 return true;
595}
596
55682965 597/* message building helper */
15e47304 598static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 599 int flags, u8 cmd)
600{
601 /* since there is no private header just add the generic one */
15e47304 602 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 603}
604
5dab3b8a 605static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 606 struct ieee80211_channel *chan,
607 bool large)
5dab3b8a 608{
ea077c1c
RL		 609 /* Some channels must be completely excluded from the
610 * list to protect old user-space tools from breaking
611 */
612 if (!large && chan->flags &
613 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
614 return 0;
615
9360ffd1
DM		 616 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
617 chan->center_freq))
618 goto nla_put_failure;
5dab3b8a 619
9360ffd1
DM		 620 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
621 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
622 goto nla_put_failure;
8fe02e16
LR		 623 if (chan->flags & IEEE80211_CHAN_NO_IR) {
624 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
625 goto nla_put_failure;
626 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
627 goto nla_put_failure;
628 }
cdc89b97
JB		 629 if (chan->flags & IEEE80211_CHAN_RADAR) {
630 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
631 goto nla_put_failure;
632 if (large) {
633 u32 time;
634
635 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
636
637 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
638 chan->dfs_state))
639 goto nla_put_failure;
640 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
641 time))
642 goto nla_put_failure;
089027e5
JD		 643 if (nla_put_u32(msg,
644 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
645 chan->dfs_cac_ms))
646 goto nla_put_failure;
cdc89b97
JB		 647 }
648 }
5dab3b8a 649
fe1abafd
JB		 650 if (large) {
651 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
652 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
653 goto nla_put_failure;
654 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
655 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
656 goto nla_put_failure;
657 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
658 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
659 goto nla_put_failure;
660 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
661 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
662 goto nla_put_failure;
570dbde1
DS		 663 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
664 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
665 goto nla_put_failure;
06f207fc
AN		 666 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
667 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 668 goto nla_put_failure;
ea077c1c
RL		 669 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
670 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
671 goto nla_put_failure;
672 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
673 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
674 goto nla_put_failure;
fe1abafd
JB		 675 }
676
9360ffd1
DM		 677 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
678 DBM_TO_MBM(chan->max_power)))
679 goto nla_put_failure;
5dab3b8a
LR		 680
681 return 0;
682
683 nla_put_failure:
684 return -ENOBUFS;
685}
686
55682965
JB		 687/* netlink command implementations */
688
b9454e83
JB		 689struct key_parse {
690 struct key_params p;
691 int idx;
e31b8213 692 int type;
b9454e83 693 bool def, defmgmt;
dbd2fd65 694 bool def_uni, def_multi;
b9454e83
JB		 695};
696
697static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
698{
699 struct nlattr *tb[NL80211_KEY_MAX + 1];
700 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
701 nl80211_key_policy);
702 if (err)
703 return err;
704
705 k->def = !!tb[NL80211_KEY_DEFAULT];
706 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
707
dbd2fd65
JB		 708 if (k->def) {
709 k->def_uni = true;
710 k->def_multi = true;
711 }
712 if (k->defmgmt)
713 k->def_multi = true;
714
b9454e83
JB		 715 if (tb[NL80211_KEY_IDX])
716 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
717
718 if (tb[NL80211_KEY_DATA]) {
719 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
720 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
721 }
722
723 if (tb[NL80211_KEY_SEQ]) {
724 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
725 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
726 }
727
728 if (tb[NL80211_KEY_CIPHER])
729 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
730
e31b8213
JB		 731 if (tb[NL80211_KEY_TYPE]) {
732 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
733 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
734 return -EINVAL;
735 }
736
dbd2fd65
JB		 737 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
738 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
7a087e74 739
2da8f419
JB		 740 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
741 tb[NL80211_KEY_DEFAULT_TYPES],
742 nl80211_key_default_policy);
dbd2fd65
JB		 743 if (err)
744 return err;
745
746 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
747 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
748 }
749
b9454e83
JB		 750 return 0;
751}
752
753static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
754{
755 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
756 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
757 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
758 }
759
760 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
761 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
762 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
763 }
764
765 if (info->attrs[NL80211_ATTR_KEY_IDX])
766 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
767
768 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
769 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
770
771 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
772 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
773
dbd2fd65
JB		 774 if (k->def) {
775 k->def_uni = true;
776 k->def_multi = true;
777 }
778 if (k->defmgmt)
779 k->def_multi = true;
780
e31b8213
JB		 781 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
782 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
783 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
784 return -EINVAL;
785 }
786
dbd2fd65
JB		 787 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
788 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
789 int err = nla_parse_nested(
790 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
791 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
792 nl80211_key_default_policy);
793 if (err)
794 return err;
795
796 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
797 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
798 }
799
b9454e83
JB		 800 return 0;
801}
802
803static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
804{
805 int err;
806
807 memset(k, 0, sizeof(*k));
808 k->idx = -1;
e31b8213 809 k->type = -1;
b9454e83
JB		 810
811 if (info->attrs[NL80211_ATTR_KEY])
812 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
813 else
814 err = nl80211_parse_key_old(info, k);
815
816 if (err)
817 return err;
818
819 if (k->def && k->defmgmt)
820 return -EINVAL;
821
dbd2fd65
JB		 822 if (k->defmgmt) {
823 if (k->def_uni || !k->def_multi)
824 return -EINVAL;
825 }
826
b9454e83
JB		 827 if (k->idx != -1) {
828 if (k->defmgmt) {
829 if (k->idx < 4 || k->idx > 5)
830 return -EINVAL;
831 } else if (k->def) {
832 if (k->idx < 0 || k->idx > 3)
833 return -EINVAL;
834 } else {
835 if (k->idx < 0 || k->idx > 5)
836 return -EINVAL;
837 }
838 }
839
840 return 0;
841}
842
fffd0934
JB		 843static struct cfg80211_cached_keys *
844nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 845 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 846{
847 struct key_parse parse;
848 struct nlattr *key;
849 struct cfg80211_cached_keys *result;
850 int rem, err, def = 0;
851
852 result = kzalloc(sizeof(*result), GFP_KERNEL);
853 if (!result)
854 return ERR_PTR(-ENOMEM);
855
856 result->def = -1;
857 result->defmgmt = -1;
858
859 nla_for_each_nested(key, keys, rem) {
860 memset(&parse, 0, sizeof(parse));
861 parse.idx = -1;
862
863 err = nl80211_parse_key_new(key, &parse);
864 if (err)
865 goto error;
866 err = -EINVAL;
867 if (!parse.p.key)
868 goto error;
869 if (parse.idx < 0 || parse.idx > 4)
870 goto error;
871 if (parse.def) {
872 if (def)
873 goto error;
874 def = 1;
875 result->def = parse.idx;
dbd2fd65
JB		 876 if (!parse.def_uni || !parse.def_multi)
877 goto error;
fffd0934
JB		 878 } else if (parse.defmgmt)
879 goto error;
880 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 881 parse.idx, false, NULL);
fffd0934
JB		 882 if (err)
883 goto error;
884 result->params[parse.idx].cipher = parse.p.cipher;
885 result->params[parse.idx].key_len = parse.p.key_len;
886 result->params[parse.idx].key = result->data[parse.idx];
887 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 888
889 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
890 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
891 if (no_ht)
892 *no_ht = true;
893 }
fffd0934
JB		 894 }
895
896 return result;
897 error:
898 kfree(result);
899 return ERR_PTR(err);
900}
901
902static int nl80211_key_allowed(struct wireless_dev *wdev)
903{
904 ASSERT_WDEV_LOCK(wdev);
905
fffd0934
JB		 906 switch (wdev->iftype) {
907 case NL80211_IFTYPE_AP:
908 case NL80211_IFTYPE_AP_VLAN:
074ac8df 909 case NL80211_IFTYPE_P2P_GO:
ff973af7 910 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 911 break;
912 case NL80211_IFTYPE_ADHOC:
fffd0934 913 case NL80211_IFTYPE_STATION:
074ac8df 914 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 915 if (!wdev->current_bss)
fffd0934
JB		 916 return -ENOLINK;
917 break;
de4fcbad 918 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 919 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 920 case NL80211_IFTYPE_MONITOR:
921 case NL80211_IFTYPE_P2P_DEVICE:
922 case NL80211_IFTYPE_WDS:
923 case NUM_NL80211_IFTYPES:
fffd0934
JB		 924 return -EINVAL;
925 }
926
927 return 0;
928}
929
664834de
JM		 930static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
931 struct nlattr *tb)
932{
933 struct ieee80211_channel *chan;
934
935 if (tb == NULL)
936 return NULL;
937 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
938 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
939 return NULL;
940 return chan;
941}
942
7527a782
JB		 943static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
944{
945 struct nlattr *nl_modes = nla_nest_start(msg, attr);
946 int i;
947
948 if (!nl_modes)
949 goto nla_put_failure;
950
951 i = 0;
952 while (ifmodes) {
9360ffd1
DM		 953 if ((ifmodes & 1) && nla_put_flag(msg, i))
954 goto nla_put_failure;
7527a782
JB		 955 ifmodes >>= 1;
956 i++;
957 }
958
959 nla_nest_end(msg, nl_modes);
960 return 0;
961
962nla_put_failure:
963 return -ENOBUFS;
964}
965
966static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 967 struct sk_buff *msg,
968 bool large)
7527a782
JB		 969{
970 struct nlattr *nl_combis;
971 int i, j;
972
973 nl_combis = nla_nest_start(msg,
974 NL80211_ATTR_INTERFACE_COMBINATIONS);
975 if (!nl_combis)
976 goto nla_put_failure;
977
978 for (i = 0; i < wiphy->n_iface_combinations; i++) {
979 const struct ieee80211_iface_combination *c;
980 struct nlattr *nl_combi, *nl_limits;
981
982 c = &wiphy->iface_combinations[i];
983
984 nl_combi = nla_nest_start(msg, i + 1);
985 if (!nl_combi)
986 goto nla_put_failure;
987
988 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
989 if (!nl_limits)
990 goto nla_put_failure;
991
992 for (j = 0; j < c->n_limits; j++) {
993 struct nlattr *nl_limit;
994
995 nl_limit = nla_nest_start(msg, j + 1);
996 if (!nl_limit)
997 goto nla_put_failure;
9360ffd1
DM		 998 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
999 c->limits[j].max))
1000 goto nla_put_failure;
7527a782
JB		 1001 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1002 c->limits[j].types))
1003 goto nla_put_failure;
1004 nla_nest_end(msg, nl_limit);
1005 }
1006
1007 nla_nest_end(msg, nl_limits);
1008
9360ffd1
DM		 1009 if (c->beacon_int_infra_match &&
1010 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1011 goto nla_put_failure;
1012 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1013 c->num_different_channels) ||
1014 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1015 c->max_interfaces))
1016 goto nla_put_failure;
cdc89b97 1017 if (large &&
8c48b50a
FF		 1018 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1019 c->radar_detect_widths) ||
1020 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1021 c->radar_detect_regions)))
cdc89b97 1022 goto nla_put_failure;
7527a782
JB		 1023
1024 nla_nest_end(msg, nl_combi);
1025 }
1026
1027 nla_nest_end(msg, nl_combis);
1028
1029 return 0;
1030nla_put_failure:
1031 return -ENOBUFS;
1032}
1033
3713b4e3 1034#ifdef CONFIG_PM
b56cf720
JB		 1035static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1036 struct sk_buff *msg)
1037{
964dc9e2 1038 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1039 struct nlattr *nl_tcp;
1040
1041 if (!tcp)
1042 return 0;
1043
1044 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1045 if (!nl_tcp)
1046 return -ENOBUFS;
1047
1048 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1049 tcp->data_payload_max))
1050 return -ENOBUFS;
1051
1052 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1053 tcp->data_payload_max))
1054 return -ENOBUFS;
1055
1056 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1057 return -ENOBUFS;
1058
1059 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1060 sizeof(*tcp->tok), tcp->tok))
1061 return -ENOBUFS;
1062
1063 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1064 tcp->data_interval_max))
1065 return -ENOBUFS;
1066
1067 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1068 tcp->wake_payload_max))
1069 return -ENOBUFS;
1070
1071 nla_nest_end(msg, nl_tcp);
1072 return 0;
1073}
1074
3713b4e3 1075static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1076 struct cfg80211_registered_device *rdev,
b56cf720 1077 bool large)
55682965 1078{
3713b4e3 1079 struct nlattr *nl_wowlan;
55682965 1080
1b8ec87a 1081 if (!rdev->wiphy.wowlan)
3713b4e3 1082 return 0;
55682965 1083
3713b4e3
JB		 1084 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1085 if (!nl_wowlan)
1086 return -ENOBUFS;
9360ffd1 1087
1b8ec87a 1088 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1089 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1090 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1091 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1092 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1093 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1094 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1095 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1096 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1097 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1098 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1099 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1100 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1101 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1102 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1103 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1104 return -ENOBUFS;
9360ffd1 1105
1b8ec87a 1106 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1107 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1108 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1109 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1110 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1111 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1112 };
9360ffd1 1113
3713b4e3
JB		 1114 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1115 sizeof(pat), &pat))
1116 return -ENOBUFS;
1117 }
9360ffd1 1118
75453ccb
LC		 1119 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1120 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1121 rdev->wiphy.wowlan->max_nd_match_sets))
1122 return -ENOBUFS;
1123
1b8ec87a 1124 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1125 return -ENOBUFS;
1126
3713b4e3 1127 nla_nest_end(msg, nl_wowlan);
9360ffd1 1128
3713b4e3
JB		 1129 return 0;
1130}
1131#endif
9360ffd1 1132
be29b99a 1133static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1134 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1135{
1136 struct nl80211_coalesce_rule_support rule;
1137
1b8ec87a 1138 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1139 return 0;
1140
1b8ec87a
ZG		 1141 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1142 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1143 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1144 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1145 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1146 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1147
1148 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1149 return -ENOBUFS;
1150
1151 return 0;
1152}
1153
3713b4e3
JB		 1154static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1155 struct ieee80211_supported_band *sband)
1156{
1157 struct nlattr *nl_rates, *nl_rate;
1158 struct ieee80211_rate *rate;
1159 int i;
87bbbe22 1160
3713b4e3
JB		 1161 /* add HT info */
1162 if (sband->ht_cap.ht_supported &&
1163 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1164 sizeof(sband->ht_cap.mcs),
1165 &sband->ht_cap.mcs) ||
1166 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1167 sband->ht_cap.cap) ||
1168 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1169 sband->ht_cap.ampdu_factor) ||
1170 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1171 sband->ht_cap.ampdu_density)))
1172 return -ENOBUFS;
afe0cbf8 1173
3713b4e3
JB		 1174 /* add VHT info */
1175 if (sband->vht_cap.vht_supported &&
1176 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1177 sizeof(sband->vht_cap.vht_mcs),
1178 &sband->vht_cap.vht_mcs) ||
1179 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1180 sband->vht_cap.cap)))
1181 return -ENOBUFS;
f59ac048 1182
3713b4e3
JB		 1183 /* add bitrates */
1184 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1185 if (!nl_rates)
1186 return -ENOBUFS;
ee688b00 1187
3713b4e3
JB		 1188 for (i = 0; i < sband->n_bitrates; i++) {
1189 nl_rate = nla_nest_start(msg, i);
1190 if (!nl_rate)
1191 return -ENOBUFS;
ee688b00 1192
3713b4e3
JB		 1193 rate = &sband->bitrates[i];
1194 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1195 rate->bitrate))
1196 return -ENOBUFS;
1197 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1198 nla_put_flag(msg,
1199 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1200 return -ENOBUFS;
ee688b00 1201
3713b4e3
JB		 1202 nla_nest_end(msg, nl_rate);
1203 }
d51626df 1204
3713b4e3 1205 nla_nest_end(msg, nl_rates);
bf0c111e 1206
3713b4e3
JB		 1207 return 0;
1208}
ee688b00 1209
3713b4e3
JB		 1210static int
1211nl80211_send_mgmt_stypes(struct sk_buff *msg,
1212 const struct ieee80211_txrx_stypes *mgmt_stypes)
1213{
1214 u16 stypes;
1215 struct nlattr *nl_ftypes, *nl_ifs;
1216 enum nl80211_iftype ift;
1217 int i;
ee688b00 1218
3713b4e3
JB		 1219 if (!mgmt_stypes)
1220 return 0;
5dab3b8a 1221
3713b4e3
JB		 1222 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1223 if (!nl_ifs)
1224 return -ENOBUFS;
e2f367f2 1225
3713b4e3
JB		 1226 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1227 nl_ftypes = nla_nest_start(msg, ift);
1228 if (!nl_ftypes)
1229 return -ENOBUFS;
1230 i = 0;
1231 stypes = mgmt_stypes[ift].tx;
1232 while (stypes) {
1233 if ((stypes & 1) &&
1234 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1235 (i << 4) | IEEE80211_FTYPE_MGMT))
1236 return -ENOBUFS;
1237 stypes >>= 1;
1238 i++;
ee688b00 1239 }
3713b4e3
JB		 1240 nla_nest_end(msg, nl_ftypes);
1241 }
ee688b00 1242
3713b4e3 1243 nla_nest_end(msg, nl_ifs);
ee688b00 1244
3713b4e3
JB		 1245 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1246 if (!nl_ifs)
1247 return -ENOBUFS;
ee688b00 1248
3713b4e3
JB		 1249 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1250 nl_ftypes = nla_nest_start(msg, ift);
1251 if (!nl_ftypes)
1252 return -ENOBUFS;
1253 i = 0;
1254 stypes = mgmt_stypes[ift].rx;
1255 while (stypes) {
1256 if ((stypes & 1) &&
1257 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1258 (i << 4) | IEEE80211_FTYPE_MGMT))
1259 return -ENOBUFS;
1260 stypes >>= 1;
1261 i++;
1262 }
1263 nla_nest_end(msg, nl_ftypes);
1264 }
1265 nla_nest_end(msg, nl_ifs);
ee688b00 1266
3713b4e3
JB		 1267 return 0;
1268}
ee688b00 1269
86e8cf98
JB		 1270struct nl80211_dump_wiphy_state {
1271 s64 filter_wiphy;
1272 long start;
019ae3a9 1273 long split_start, band_start, chan_start, capa_start;
86e8cf98
JB		 1274 bool split;
1275};
1276
1b8ec87a 1277static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1278 enum nl80211_commands cmd,
3713b4e3 1279 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1280 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1281{
1282 void *hdr;
1283 struct nlattr *nl_bands, *nl_band;
1284 struct nlattr *nl_freqs, *nl_freq;
1285 struct nlattr *nl_cmds;
57fbcce3 1286 enum nl80211_band band;
3713b4e3
JB		 1287 struct ieee80211_channel *chan;
1288 int i;
1289 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1290 rdev->wiphy.mgmt_stypes;
fe1abafd 1291 u32 features;
ee688b00 1292
3bb20556 1293 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1294 if (!hdr)
1295 return -ENOBUFS;
ee688b00 1296
86e8cf98
JB		 1297 if (WARN_ON(!state))
1298 return -EINVAL;
ee688b00 1299
1b8ec87a 1300 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1301 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1302 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1303 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1304 cfg80211_rdev_list_generation))
8fdc621d
JB		 1305 goto nla_put_failure;
1306
3bb20556
JB		 1307 if (cmd != NL80211_CMD_NEW_WIPHY)
1308 goto finish;
1309
86e8cf98 1310 switch (state->split_start) {
3713b4e3
JB		 1311 case 0:
1312 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1313 rdev->wiphy.retry_short) ||
3713b4e3 1314 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1315 rdev->wiphy.retry_long) ||
3713b4e3 1316 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1317 rdev->wiphy.frag_threshold) ||
3713b4e3 1318 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1319 rdev->wiphy.rts_threshold) ||
3713b4e3 1320 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1321 rdev->wiphy.coverage_class) ||
3713b4e3 1322 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1323 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1324 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1325 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1326 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1327 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1328 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1329 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1330 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1331 rdev->wiphy.max_match_sets) ||
1332 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1333 rdev->wiphy.max_sched_scan_plans) ||
1334 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1335 rdev->wiphy.max_sched_scan_plan_interval) ||
1336 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1337 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1338 goto nla_put_failure;
3713b4e3 1339
1b8ec87a 1340 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1341 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1342 goto nla_put_failure;
1b8ec87a 1343 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1344 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1345 goto nla_put_failure;
1b8ec87a 1346 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1347 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1348 goto nla_put_failure;
1b8ec87a 1349 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1350 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1351 goto nla_put_failure;
1b8ec87a 1352 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1353 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1354 goto nla_put_failure;
1b8ec87a 1355 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1356 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1357 goto nla_put_failure;
86e8cf98
JB		 1358 state->split_start++;
1359 if (state->split)
3713b4e3
JB		 1360 break;
1361 case 1:
1362 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1363 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1364 rdev->wiphy.cipher_suites))
3713b4e3 1365 goto nla_put_failure;
4745fc09 1366
3713b4e3 1367 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1368 rdev->wiphy.max_num_pmkids))
3713b4e3 1369 goto nla_put_failure;
b23aa676 1370
1b8ec87a 1371 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1372 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1373 goto nla_put_failure;
b23aa676 1374
3713b4e3 1375 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1376 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1377 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1378 rdev->wiphy.available_antennas_rx))
9360ffd1 1379 goto nla_put_failure;
b23aa676 1380
1b8ec87a 1381 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1382 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1383 rdev->wiphy.probe_resp_offload))
3713b4e3 1384 goto nla_put_failure;
8fdc621d 1385
1b8ec87a
ZG		 1386 if ((rdev->wiphy.available_antennas_tx ||
1387 rdev->wiphy.available_antennas_rx) &&
1388 rdev->ops->get_antenna) {
3713b4e3
JB		 1389 u32 tx_ant = 0, rx_ant = 0;
1390 int res;
7a087e74 1391
1b8ec87a 1392 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1393 if (!res) {
1394 if (nla_put_u32(msg,
1395 NL80211_ATTR_WIPHY_ANTENNA_TX,
1396 tx_ant) ||
1397 nla_put_u32(msg,
1398 NL80211_ATTR_WIPHY_ANTENNA_RX,
1399 rx_ant))
1400 goto nla_put_failure;
1401 }
1402 }
a293911d 1403
86e8cf98
JB		 1404 state->split_start++;
1405 if (state->split)
3713b4e3
JB		 1406 break;
1407 case 2:
1408 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1409 rdev->wiphy.interface_modes))
3713b4e3 1410 goto nla_put_failure;
86e8cf98
JB		 1411 state->split_start++;
1412 if (state->split)
3713b4e3
JB		 1413 break;
1414 case 3:
1415 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1416 if (!nl_bands)
1417 goto nla_put_failure;
f7ca38df 1418
86e8cf98 1419 for (band = state->band_start;
57fbcce3 1420 band < NUM_NL80211_BANDS; band++) {
3713b4e3 1421 struct ieee80211_supported_band *sband;
2e161f78 1422
1b8ec87a 1423 sband = rdev->wiphy.bands[band];
2e161f78 1424
3713b4e3
JB		 1425 if (!sband)
1426 continue;
1427
1428 nl_band = nla_nest_start(msg, band);
1429 if (!nl_band)
2e161f78 1430 goto nla_put_failure;
3713b4e3 1431
86e8cf98 1432 switch (state->chan_start) {
3713b4e3
JB		 1433 case 0:
1434 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1435 goto nla_put_failure;
86e8cf98
JB		 1436 state->chan_start++;
1437 if (state->split)
3713b4e3
JB		 1438 break;
1439 default:
1440 /* add frequencies */
1441 nl_freqs = nla_nest_start(
1442 msg, NL80211_BAND_ATTR_FREQS);
1443 if (!nl_freqs)
1444 goto nla_put_failure;
1445
86e8cf98 1446 for (i = state->chan_start - 1;
3713b4e3
JB		 1447 i < sband->n_channels;
1448 i++) {
1449 nl_freq = nla_nest_start(msg, i);
1450 if (!nl_freq)
1451 goto nla_put_failure;
1452
1453 chan = &sband->channels[i];
1454
86e8cf98
JB		 1455 if (nl80211_msg_put_channel(
1456 msg, chan,
1457 state->split))
3713b4e3
JB		 1458 goto nla_put_failure;
1459
1460 nla_nest_end(msg, nl_freq);
86e8cf98 1461 if (state->split)
3713b4e3
JB		 1462 break;
1463 }
1464 if (i < sband->n_channels)
86e8cf98 1465 state->chan_start = i + 2;
3713b4e3 1466 else
86e8cf98 1467 state->chan_start = 0;
3713b4e3
JB		 1468 nla_nest_end(msg, nl_freqs);
1469 }
1470
1471 nla_nest_end(msg, nl_band);
1472
86e8cf98 1473 if (state->split) {
3713b4e3 1474 /* start again here */
86e8cf98 1475 if (state->chan_start)
3713b4e3
JB		 1476 band--;
1477 break;
2e161f78 1478 }
2e161f78 1479 }
3713b4e3 1480 nla_nest_end(msg, nl_bands);
2e161f78 1481
57fbcce3 1482 if (band < NUM_NL80211_BANDS)
86e8cf98 1483 state->band_start = band + 1;
3713b4e3 1484 else
86e8cf98 1485 state->band_start = 0;
74b70a4e 1486
3713b4e3 1487 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1488 if (state->band_start == 0 && state->chan_start == 0)
1489 state->split_start++;
1490 if (state->split)
3713b4e3
JB		 1491 break;
1492 case 4:
1493 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1494 if (!nl_cmds)
2e161f78
JB		 1495 goto nla_put_failure;
1496
3713b4e3
JB		 1497 i = 0;
1498#define CMD(op, n) \
1499 do { \
1b8ec87a 1500 if (rdev->ops->op) { \
3713b4e3
JB		 1501 i++; \
1502 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1503 goto nla_put_failure; \
1504 } \
1505 } while (0)
1506
1507 CMD(add_virtual_intf, NEW_INTERFACE);
1508 CMD(change_virtual_intf, SET_INTERFACE);
1509 CMD(add_key, NEW_KEY);
1510 CMD(start_ap, START_AP);
1511 CMD(add_station, NEW_STATION);
1512 CMD(add_mpath, NEW_MPATH);
1513 CMD(update_mesh_config, SET_MESH_CONFIG);
1514 CMD(change_bss, SET_BSS);
1515 CMD(auth, AUTHENTICATE);
1516 CMD(assoc, ASSOCIATE);
1517 CMD(deauth, DEAUTHENTICATE);
1518 CMD(disassoc, DISASSOCIATE);
1519 CMD(join_ibss, JOIN_IBSS);
1520 CMD(join_mesh, JOIN_MESH);
1521 CMD(set_pmksa, SET_PMKSA);
1522 CMD(del_pmksa, DEL_PMKSA);
1523 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1524 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1525 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1526 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1527 CMD(mgmt_tx, FRAME);
1528 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1529 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1530 i++;
1531 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1532 goto nla_put_failure;
2e161f78 1533 }
1b8ec87a
ZG		 1534 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1535 rdev->ops->join_mesh) {
3713b4e3
JB		 1536 i++;
1537 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1538 goto nla_put_failure;
1539 }
1540 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1541 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1542 CMD(tdls_mgmt, TDLS_MGMT);
1543 CMD(tdls_oper, TDLS_OPER);
1544 }
1b8ec87a 1545 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1546 CMD(sched_scan_start, START_SCHED_SCAN);
1547 CMD(probe_client, PROBE_CLIENT);
1548 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1549 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1550 i++;
1551 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1552 goto nla_put_failure;
1553 }
1554 CMD(start_p2p_device, START_P2P_DEVICE);
1555 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1556#ifdef CONFIG_NL80211_TESTMODE
1557 CMD(testmode_cmd, TESTMODE);
1558#endif
86e8cf98 1559 if (state->split) {
5de17984
AS		 1560 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1561 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1562 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1563 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1564 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1565 if (rdev->wiphy.features &
1566 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1567 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1568 }
02df00eb 1569 /* add into the if now */
3713b4e3 1570#undef CMD
ff1b6e69 1571
1b8ec87a 1572 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1573 i++;
1574 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1575 goto nla_put_failure;
ff1b6e69
JB		 1576 }
1577
1b8ec87a 1578 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1579 i++;
1580 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1581 goto nla_put_failure;
1582 }
1583
1584 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1585 state->split_start++;
1586 if (state->split)
3713b4e3
JB		 1587 break;
1588 case 5:
1b8ec87a
ZG		 1589 if (rdev->ops->remain_on_channel &&
1590 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1591 nla_put_u32(msg,
1592 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1593 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1594 goto nla_put_failure;
1595
1b8ec87a 1596 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1597 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1598 goto nla_put_failure;
1599
1600 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1601 goto nla_put_failure;
86e8cf98
JB		 1602 state->split_start++;
1603 if (state->split)
3713b4e3
JB		 1604 break;
1605 case 6:
1606#ifdef CONFIG_PM
1b8ec87a 1607 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1608 goto nla_put_failure;
86e8cf98
JB		 1609 state->split_start++;
1610 if (state->split)
3713b4e3
JB		 1611 break;
1612#else
86e8cf98 1613 state->split_start++;
dfb89c56 1614#endif
3713b4e3
JB		 1615 case 7:
1616 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1617 rdev->wiphy.software_iftypes))
3713b4e3 1618 goto nla_put_failure;
ff1b6e69 1619
1b8ec87a 1620 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1621 state->split))
3713b4e3 1622 goto nla_put_failure;
7527a782 1623
86e8cf98
JB		 1624 state->split_start++;
1625 if (state->split)
3713b4e3
JB		 1626 break;
1627 case 8:
1b8ec87a 1628 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1629 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1630 rdev->wiphy.ap_sme_capa))
3713b4e3 1631 goto nla_put_failure;
7527a782 1632
1b8ec87a 1633 features = rdev->wiphy.features;
fe1abafd
JB		 1634 /*
1635 * We can only add the per-channel limit information if the
1636 * dump is split, otherwise it makes it too big. Therefore
1637 * only advertise it in that case.
1638 */
86e8cf98 1639 if (state->split)
fe1abafd
JB		 1640 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1641 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1642 goto nla_put_failure;
562a7480 1643
1b8ec87a 1644 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1645 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1646 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1647 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1648 goto nla_put_failure;
1f074bd8 1649
1b8ec87a
ZG		 1650 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1651 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1652 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1653 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1654 goto nla_put_failure;
7e7c8926 1655
3713b4e3
JB		 1656 /*
1657 * Any information below this point is only available to
1658 * applications that can deal with it being split. This
1659 * helps ensure that newly added capabilities don't break
1660 * older tools by overrunning their buffers.
1661 *
1662 * We still increment split_start so that in the split
1663 * case we'll continue with more data in the next round,
1664 * but break unconditionally so unsplit data stops here.
1665 */
86e8cf98 1666 state->split_start++;
3713b4e3
JB		 1667 break;
1668 case 9:
1b8ec87a 1669 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1670 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1671 rdev->wiphy.extended_capabilities_len,
1672 rdev->wiphy.extended_capabilities) ||
fe1abafd 1673 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1674 rdev->wiphy.extended_capabilities_len,
1675 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1676 goto nla_put_failure;
a50df0c4 1677
1b8ec87a 1678 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1679 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1680 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1681 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1682 goto nla_put_failure;
1683
be29b99a
AK		 1684 state->split_start++;
1685 break;
1686 case 10:
1b8ec87a 1687 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1688 goto nla_put_failure;
1689
1b8ec87a 1690 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1691 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1692 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1693 goto nla_put_failure;
b43504cf 1694
1b8ec87a 1695 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1696 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1697 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1698 goto nla_put_failure;
1699
ad7e718c
JB		 1700 state->split_start++;
1701 break;
1702 case 11:
1b8ec87a 1703 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1704 const struct nl80211_vendor_cmd_info *info;
1705 struct nlattr *nested;
1706
1707 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1708 if (!nested)
1709 goto nla_put_failure;
1710
1b8ec87a
ZG		 1711 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1712 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1713 if (nla_put(msg, i + 1, sizeof(*info), info))
1714 goto nla_put_failure;
1715 }
1716 nla_nest_end(msg, nested);
1717 }
1718
1b8ec87a 1719 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1720 const struct nl80211_vendor_cmd_info *info;
1721 struct nlattr *nested;
ad7e718c 1722
567ffc35
JB		 1723 nested = nla_nest_start(msg,
1724 NL80211_ATTR_VENDOR_EVENTS);
1725 if (!nested)
ad7e718c 1726 goto nla_put_failure;
567ffc35 1727
1b8ec87a
ZG		 1728 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1729 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1730 if (nla_put(msg, i + 1, sizeof(*info), info))
1731 goto nla_put_failure;
1732 }
1733 nla_nest_end(msg, nested);
1734 }
9a774c78
AO		 1735 state->split_start++;
1736 break;
1737 case 12:
1738 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1739 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1740 rdev->wiphy.max_num_csa_counters))
1741 goto nla_put_failure;
01e0daa4 1742
1bdd716c
AN		 1743 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1744 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1745 goto nla_put_failure;
1746
d75bb06b
GKS		 1747 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1748 sizeof(rdev->wiphy.ext_features),
1749 rdev->wiphy.ext_features))
1750 goto nla_put_failure;
1751
38de03d2
AS		 1752 if (rdev->wiphy.bss_select_support) {
1753 struct nlattr *nested;
1754 u32 bss_select_support = rdev->wiphy.bss_select_support;
1755
1756 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1757 if (!nested)
1758 goto nla_put_failure;
1759
1760 i = 0;
1761 while (bss_select_support) {
1762 if ((bss_select_support & 1) &&
1763 nla_put_flag(msg, i))
1764 goto nla_put_failure;
1765 i++;
1766 bss_select_support >>= 1;
1767 }
1768 nla_nest_end(msg, nested);
1769 }
1770
019ae3a9
KV		 1771 state->split_start++;
1772 break;
1773 case 13:
1774 if (rdev->wiphy.num_iftype_ext_capab &&
1775 rdev->wiphy.iftype_ext_capab) {
1776 struct nlattr *nested_ext_capab, *nested;
1777
1778 nested = nla_nest_start(msg,
1779 NL80211_ATTR_IFTYPE_EXT_CAPA);
1780 if (!nested)
1781 goto nla_put_failure;
1782
1783 for (i = state->capa_start;
1784 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1785 const struct wiphy_iftype_ext_capab *capab;
1786
1787 capab = &rdev->wiphy.iftype_ext_capab[i];
1788
1789 nested_ext_capab = nla_nest_start(msg, i);
1790 if (!nested_ext_capab ||
1791 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1792 capab->iftype) ||
1793 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1794 capab->extended_capabilities_len,
1795 capab->extended_capabilities) ||
1796 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1797 capab->extended_capabilities_len,
1798 capab->extended_capabilities_mask))
1799 goto nla_put_failure;
1800
1801 nla_nest_end(msg, nested_ext_capab);
1802 if (state->split)
1803 break;
1804 }
1805 nla_nest_end(msg, nested);
1806 if (i < rdev->wiphy.num_iftype_ext_capab) {
1807 state->capa_start = i + 1;
1808 break;
1809 }
1810 }
1811
3713b4e3 1812 /* done */
86e8cf98 1813 state->split_start = 0;
3713b4e3
JB		 1814 break;
1815 }
3bb20556 1816 finish:
053c095a
JB		 1817 genlmsg_end(msg, hdr);
1818 return 0;
55682965
JB		 1819
1820 nla_put_failure:
bc3ed28c
TG		 1821 genlmsg_cancel(msg, hdr);
1822 return -EMSGSIZE;
55682965
JB		 1823}
1824
86e8cf98
JB		 1825static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1826 struct netlink_callback *cb,
1827 struct nl80211_dump_wiphy_state *state)
1828{
1829 struct nlattr **tb = nl80211_fam.attrbuf;
1830 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1831 tb, nl80211_fam.maxattr, nl80211_policy);
1832 /* ignore parse errors for backward compatibility */
1833 if (ret)
1834 return 0;
1835
1836 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1837 if (tb[NL80211_ATTR_WIPHY])
1838 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1839 if (tb[NL80211_ATTR_WDEV])
1840 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1841 if (tb[NL80211_ATTR_IFINDEX]) {
1842 struct net_device *netdev;
1843 struct cfg80211_registered_device *rdev;
1844 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1845
7f2b8562 1846 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1847 if (!netdev)
1848 return -ENODEV;
1849 if (netdev->ieee80211_ptr) {
f26cbf40 1850 rdev = wiphy_to_rdev(
86e8cf98
JB		 1851 netdev->ieee80211_ptr->wiphy);
1852 state->filter_wiphy = rdev->wiphy_idx;
1853 }
86e8cf98
JB		 1854 }
1855
1856 return 0;
1857}
1858
55682965
JB		 1859static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1860{
645e77de 1861 int idx = 0, ret;
86e8cf98 1862 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1863 struct cfg80211_registered_device *rdev;
3a5a423b 1864
5fe231e8 1865 rtnl_lock();
86e8cf98
JB		 1866 if (!state) {
1867 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1868 if (!state) {
1869 rtnl_unlock();
86e8cf98 1870 return -ENOMEM;
3713b4e3 1871 }
86e8cf98
JB		 1872 state->filter_wiphy = -1;
1873 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1874 if (ret) {
1875 kfree(state);
1876 rtnl_unlock();
1877 return ret;
3713b4e3 1878 }
86e8cf98 1879 cb->args[0] = (long)state;
3713b4e3
JB		 1880 }
1881
1b8ec87a
ZG		 1882 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1883 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1884 continue;
86e8cf98 1885 if (++idx <= state->start)
55682965 1886 continue;
86e8cf98 1887 if (state->filter_wiphy != -1 &&
1b8ec87a 1888 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1889 continue;
1890 /* attempt to fit multiple wiphy data chunks into the skb */
1891 do {
3bb20556
JB		 1892 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1893 skb,
3713b4e3
JB		 1894 NETLINK_CB(cb->skb).portid,
1895 cb->nlh->nlmsg_seq,
86e8cf98 1896 NLM_F_MULTI, state);
3713b4e3
JB		 1897 if (ret < 0) {
1898 /*
1899 * If sending the wiphy data didn't fit (ENOBUFS
1900 * or EMSGSIZE returned), this SKB is still
1901 * empty (so it's not too big because another
1902 * wiphy dataset is already in the skb) and
1903 * we've not tried to adjust the dump allocation
1904 * yet ... then adjust the alloc size to be
1905 * bigger, and return 1 but with the empty skb.
1906 * This results in an empty message being RX'ed
1907 * in userspace, but that is ignored.
1908 *
1909 * We can then retry with the larger buffer.
1910 */
1911 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1912 !skb->len && !state->split &&
3713b4e3
JB		 1913 cb->min_dump_alloc < 4096) {
1914 cb->min_dump_alloc = 4096;
f12cb289 1915 state->split_start = 0;
d98cae64 1916 rtnl_unlock();
3713b4e3
JB		 1917 return 1;
1918 }
1919 idx--;
1920 break;
645e77de 1921 }
86e8cf98 1922 } while (state->split_start > 0);
3713b4e3 1923 break;
55682965 1924 }
5fe231e8 1925 rtnl_unlock();
55682965 1926
86e8cf98 1927 state->start = idx;
55682965
JB		 1928
1929 return skb->len;
1930}
1931
86e8cf98
JB		 1932static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1933{
1934 kfree((void *)cb->args[0]);
1935 return 0;
1936}
1937
55682965
JB		 1938static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1939{
1940 struct sk_buff *msg;
1b8ec87a 1941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1942 struct nl80211_dump_wiphy_state state = {};
55682965 1943
645e77de 1944 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1945 if (!msg)
4c476991 1946 return -ENOMEM;
55682965 1947
3bb20556
JB		 1948 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1949 info->snd_portid, info->snd_seq, 0,
86e8cf98 1950 &state) < 0) {
4c476991
JB		 1951 nlmsg_free(msg);
1952 return -ENOBUFS;
1953 }
55682965 1954
134e6375 1955 return genlmsg_reply(msg, info);
55682965
JB		 1956}
1957
31888487
JM		 1958static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1959 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1960 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1961 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1962 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1963 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1964};
1965
1966static int parse_txq_params(struct nlattr *tb[],
1967 struct ieee80211_txq_params *txq_params)
1968{
a3304b0a 1969 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1970 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1971 !tb[NL80211_TXQ_ATTR_AIFS])
1972 return -EINVAL;
1973
a3304b0a 1974 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1975 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1976 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1977 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1978 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1979
a3304b0a
JB		 1980 if (txq_params->ac >= NL80211_NUM_ACS)
1981 return -EINVAL;
1982
31888487
JM		 1983 return 0;
1984}
1985
f444de05
JB		 1986static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1987{
1988 /*
cc1d2806
JB		 1989 * You can only set the channel explicitly for WDS interfaces,
1990 * all others have their channel managed via their respective
1991 * "establish a connection" command (connect, join, ...)
1992 *
1993 * For AP/GO and mesh mode, the channel can be set with the
1994 * channel userspace API, but is only stored and passed to the
1995 * low-level driver when the AP starts or the mesh is joined.
1996 * This is for backward compatibility, userspace can also give
1997 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1998 *
1999 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 2000 * whatever else is going on, so they have their own special
2001 * operation to set the monitor channel if possible.
f444de05
JB		 2002 */
2003 return !wdev ||
2004 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 2005 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 2006 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2007 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 2008}
2009
683b6d3b
JB		 2010static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2011 struct genl_info *info,
2012 struct cfg80211_chan_def *chandef)
2013{
dbeca2ea 2014 u32 control_freq;
683b6d3b
JB		 2015
2016 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2017 return -EINVAL;
2018
2019 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2020
2021 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 2022 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2023 chandef->center_freq1 = control_freq;
2024 chandef->center_freq2 = 0;
683b6d3b
JB		 2025
2026 /* Primary channel not allowed */
2027 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2028 return -EINVAL;
2029
3d9d1d66
JB		 2030 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2031 enum nl80211_channel_type chantype;
2032
2033 chantype = nla_get_u32(
2034 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2035
2036 switch (chantype) {
2037 case NL80211_CHAN_NO_HT:
2038 case NL80211_CHAN_HT20:
2039 case NL80211_CHAN_HT40PLUS:
2040 case NL80211_CHAN_HT40MINUS:
2041 cfg80211_chandef_create(chandef, chandef->chan,
2042 chantype);
2043 break;
2044 default:
2045 return -EINVAL;
2046 }
2047 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2048 chandef->width =
2049 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2050 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2051 chandef->center_freq1 =
2052 nla_get_u32(
2053 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2054 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2055 chandef->center_freq2 =
2056 nla_get_u32(
2057 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2058 }
2059
9f5e8f6e 2060 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 2061 return -EINVAL;
2062
9f5e8f6e
JB		 2063 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2064 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 2065 return -EINVAL;
2066
2f301ab2
SW		 2067 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2068 chandef->width == NL80211_CHAN_WIDTH_10) &&
2069 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2070 return -EINVAL;
2071
683b6d3b
JB		 2072 return 0;
2073}
2074
f444de05 2075static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 2076 struct net_device *dev,
f444de05
JB		 2077 struct genl_info *info)
2078{
683b6d3b 2079 struct cfg80211_chan_def chandef;
f444de05 2080 int result;
e8c9bd5b 2081 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2082 struct wireless_dev *wdev = NULL;
e8c9bd5b 2083
e16821bc
JM		 2084 if (dev)
2085 wdev = dev->ieee80211_ptr;
f444de05
JB		 2086 if (!nl80211_can_set_dev_channel(wdev))
2087 return -EOPNOTSUPP;
e16821bc
JM		 2088 if (wdev)
2089 iftype = wdev->iftype;
f444de05 2090
683b6d3b
JB		 2091 result = nl80211_parse_chandef(rdev, info, &chandef);
2092 if (result)
2093 return result;
f444de05 2094
e8c9bd5b 2095 switch (iftype) {
aa430da4
JB		 2096 case NL80211_IFTYPE_AP:
2097 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2098 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2099 iftype)) {
aa430da4
JB		 2100 result = -EINVAL;
2101 break;
2102 }
e16821bc
JM		 2103 if (wdev->beacon_interval) {
2104 if (!dev || !rdev->ops->set_ap_chanwidth ||
2105 !(rdev->wiphy.features &
2106 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2107 result = -EBUSY;
2108 break;
2109 }
2110
2111 /* Only allow dynamic channel width changes */
2112 if (chandef.chan != wdev->preset_chandef.chan) {
2113 result = -EBUSY;
2114 break;
2115 }
2116 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2117 if (result)
2118 break;
2119 }
683b6d3b 2120 wdev->preset_chandef = chandef;
aa430da4
JB		 2121 result = 0;
2122 break;
cc1d2806 2123 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2124 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2125 break;
e8c9bd5b 2126 case NL80211_IFTYPE_MONITOR:
683b6d3b 2127 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2128 break;
aa430da4 2129 default:
e8c9bd5b 2130 result = -EINVAL;
f444de05 2131 }
f444de05
JB		 2132
2133 return result;
2134}
2135
2136static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2137{
4c476991
JB		 2138 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2139 struct net_device *netdev = info->user_ptr[1];
f444de05 2140
e16821bc 2141 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2142}
2143
e8347eba
BJ		 2144static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2145{
43b19952
JB		 2146 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2147 struct net_device *dev = info->user_ptr[1];
2148 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2149 const u8 *bssid;
e8347eba
BJ		 2150
2151 if (!info->attrs[NL80211_ATTR_MAC])
2152 return -EINVAL;
2153
43b19952
JB		 2154 if (netif_running(dev))
2155 return -EBUSY;
e8347eba 2156
43b19952
JB		 2157 if (!rdev->ops->set_wds_peer)
2158 return -EOPNOTSUPP;
e8347eba 2159
43b19952
JB		 2160 if (wdev->iftype != NL80211_IFTYPE_WDS)
2161 return -EOPNOTSUPP;
e8347eba
BJ		 2162
2163 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2164 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2165}
2166
55682965
JB		 2167static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2168{
2169 struct cfg80211_registered_device *rdev;
f444de05
JB		 2170 struct net_device *netdev = NULL;
2171 struct wireless_dev *wdev;
a1e567c8 2172 int result = 0, rem_txq_params = 0;
31888487 2173 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2174 u32 changed;
2175 u8 retry_short = 0, retry_long = 0;
2176 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2177 u8 coverage_class = 0;
55682965 2178
5fe231e8
JB		 2179 ASSERT_RTNL();
2180
f444de05
JB		 2181 /*
2182 * Try to find the wiphy and netdev. Normally this
2183 * function shouldn't need the netdev, but this is
2184 * done for backward compatibility -- previously
2185 * setting the channel was done per wiphy, but now
2186 * it is per netdev. Previous userland like hostapd
2187 * also passed a netdev to set_wiphy, so that it is
2188 * possible to let that go to the right netdev!
2189 */
4bbf4d56 2190
f444de05
JB		 2191 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2192 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2193
7f2b8562 2194 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2195 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2196 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2197 else
f444de05 2198 netdev = NULL;
4bbf4d56
JB		 2199 }
2200
f444de05 2201 if (!netdev) {
878d9ec7
JB		 2202 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2203 info->attrs);
5fe231e8 2204 if (IS_ERR(rdev))
4c476991 2205 return PTR_ERR(rdev);
f444de05
JB		 2206 wdev = NULL;
2207 netdev = NULL;
2208 result = 0;
71fe96bf 2209 } else
f444de05 2210 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2211
2212 /*
2213 * end workaround code, by now the rdev is available
2214 * and locked, and wdev may or may not be NULL.
2215 */
4bbf4d56
JB		 2216
2217 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2218 result = cfg80211_dev_rename(
2219 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2220
4bbf4d56 2221 if (result)
7f2b8562 2222 return result;
31888487
JM		 2223
2224 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2225 struct ieee80211_txq_params txq_params;
2226 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2227
7f2b8562
YX		 2228 if (!rdev->ops->set_txq_params)
2229 return -EOPNOTSUPP;
31888487 2230
7f2b8562
YX		 2231 if (!netdev)
2232 return -EINVAL;
f70f01c2 2233
133a3ff2 2234 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2235 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2236 return -EINVAL;
133a3ff2 2237
7f2b8562
YX		 2238 if (!netif_running(netdev))
2239 return -ENETDOWN;
2b5f8b0b 2240
31888487
JM		 2241 nla_for_each_nested(nl_txq_params,
2242 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2243 rem_txq_params) {
ae811e21
JB		 2244 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2245 nla_data(nl_txq_params),
2246 nla_len(nl_txq_params),
2247 txq_params_policy);
2248 if (result)
2249 return result;
31888487
JM		 2250 result = parse_txq_params(tb, &txq_params);
2251 if (result)
7f2b8562 2252 return result;
31888487 2253
e35e4d28
HG		 2254 result = rdev_set_txq_params(rdev, netdev,
2255 &txq_params);
31888487 2256 if (result)
7f2b8562 2257 return result;
31888487
JM		 2258 }
2259 }
55682965 2260
72bdcf34 2261 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2262 result = __nl80211_set_channel(
2263 rdev,
2264 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2265 info);
72bdcf34 2266 if (result)
7f2b8562 2267 return result;
72bdcf34
JM		 2268 }
2269
98d2ff8b 2270 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2271 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2272 enum nl80211_tx_power_setting type;
2273 int idx, mbm = 0;
2274
c8442118
JB		 2275 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2276 txp_wdev = NULL;
2277
7f2b8562
YX		 2278 if (!rdev->ops->set_tx_power)
2279 return -EOPNOTSUPP;
98d2ff8b
JO		 2280
2281 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2282 type = nla_get_u32(info->attrs[idx]);
2283
2284 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2285 (type != NL80211_TX_POWER_AUTOMATIC))
2286 return -EINVAL;
98d2ff8b
JO		 2287
2288 if (type != NL80211_TX_POWER_AUTOMATIC) {
2289 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2290 mbm = nla_get_u32(info->attrs[idx]);
2291 }
2292
c8442118 2293 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2294 if (result)
7f2b8562 2295 return result;
98d2ff8b
JO		 2296 }
2297
afe0cbf8
BR		 2298 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2299 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2300 u32 tx_ant, rx_ant;
7a087e74 2301
7f531e03
BR		 2302 if ((!rdev->wiphy.available_antennas_tx &&
2303 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2304 !rdev->ops->set_antenna)
2305 return -EOPNOTSUPP;
afe0cbf8
BR		 2306
2307 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2308 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2309
a7ffac95 2310 /* reject antenna configurations which don't match the
7f531e03
BR		 2311 * available antenna masks, except for the "all" mask */
2312 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2313 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2314 return -EINVAL;
a7ffac95 2315
7f531e03
BR		 2316 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2317 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2318
e35e4d28 2319 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2320 if (result)
7f2b8562 2321 return result;
afe0cbf8
BR		 2322 }
2323
b9a5f8ca
JM		 2324 changed = 0;
2325
2326 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2327 retry_short = nla_get_u8(
2328 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2329 if (retry_short == 0)
2330 return -EINVAL;
2331
b9a5f8ca
JM		 2332 changed |= WIPHY_PARAM_RETRY_SHORT;
2333 }
2334
2335 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2336 retry_long = nla_get_u8(
2337 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2338 if (retry_long == 0)
2339 return -EINVAL;
2340
b9a5f8ca
JM		 2341 changed |= WIPHY_PARAM_RETRY_LONG;
2342 }
2343
2344 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2345 frag_threshold = nla_get_u32(
2346 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2347 if (frag_threshold < 256)
2348 return -EINVAL;
2349
b9a5f8ca
JM		 2350 if (frag_threshold != (u32) -1) {
2351 /*
2352 * Fragments (apart from the last one) are required to
2353 * have even length. Make the fragmentation code
2354 * simpler by stripping LSB should someone try to use
2355 * odd threshold value.
2356 */
2357 frag_threshold &= ~0x1;
2358 }
2359 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2360 }
2361
2362 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2363 rts_threshold = nla_get_u32(
2364 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2365 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2366 }
2367
81077e82 2368 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2369 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2370 return -EINVAL;
2371
81077e82
LT		 2372 coverage_class = nla_get_u8(
2373 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2374 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2375 }
2376
3057dbfd
LB		 2377 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2378 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2379 return -EOPNOTSUPP;
2380
2381 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2382 }
2383
b9a5f8ca
JM		 2384 if (changed) {
2385 u8 old_retry_short, old_retry_long;
2386 u32 old_frag_threshold, old_rts_threshold;
81077e82 2387 u8 old_coverage_class;
b9a5f8ca 2388
7f2b8562
YX		 2389 if (!rdev->ops->set_wiphy_params)
2390 return -EOPNOTSUPP;
b9a5f8ca
JM		 2391
2392 old_retry_short = rdev->wiphy.retry_short;
2393 old_retry_long = rdev->wiphy.retry_long;
2394 old_frag_threshold = rdev->wiphy.frag_threshold;
2395 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2396 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2397
2398 if (changed & WIPHY_PARAM_RETRY_SHORT)
2399 rdev->wiphy.retry_short = retry_short;
2400 if (changed & WIPHY_PARAM_RETRY_LONG)
2401 rdev->wiphy.retry_long = retry_long;
2402 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2403 rdev->wiphy.frag_threshold = frag_threshold;
2404 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2405 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2406 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2407 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2408
e35e4d28 2409 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2410 if (result) {
2411 rdev->wiphy.retry_short = old_retry_short;
2412 rdev->wiphy.retry_long = old_retry_long;
2413 rdev->wiphy.frag_threshold = old_frag_threshold;
2414 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2415 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2416 return result;
b9a5f8ca
JM		 2417 }
2418 }
7f2b8562 2419 return 0;
55682965
JB		 2420}
2421
71bbc994
JB		 2422static inline u64 wdev_id(struct wireless_dev *wdev)
2423{
2424 return (u64)wdev->identifier |
f26cbf40 2425 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2426}
55682965 2427
683b6d3b 2428static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2429 const struct cfg80211_chan_def *chandef)
683b6d3b 2430{
601555cd
JB		 2431 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2432 return -EINVAL;
3d9d1d66 2433
683b6d3b
JB		 2434 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2435 chandef->chan->center_freq))
2436 return -ENOBUFS;
3d9d1d66
JB		 2437 switch (chandef->width) {
2438 case NL80211_CHAN_WIDTH_20_NOHT:
2439 case NL80211_CHAN_WIDTH_20:
2440 case NL80211_CHAN_WIDTH_40:
2441 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2442 cfg80211_get_chandef_type(chandef)))
2443 return -ENOBUFS;
2444 break;
2445 default:
2446 break;
2447 }
2448 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2449 return -ENOBUFS;
2450 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2451 return -ENOBUFS;
2452 if (chandef->center_freq2 &&
2453 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2454 return -ENOBUFS;
2455 return 0;
2456}
2457
15e47304 2458static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2459 struct cfg80211_registered_device *rdev,
8f894be2 2460 struct wireless_dev *wdev, bool removal)
55682965 2461{
72fb2abc 2462 struct net_device *dev = wdev->netdev;
8f894be2 2463 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2464 void *hdr;
2465
8f894be2
TB		 2466 if (removal)
2467 cmd = NL80211_CMD_DEL_INTERFACE;
2468
2469 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2470 if (!hdr)
2471 return -1;
2472
72fb2abc
JB		 2473 if (dev &&
2474 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2475 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2476 goto nla_put_failure;
2477
2478 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2479 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2dad624e
ND		 2480 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2481 NL80211_ATTR_PAD) ||
98104fde 2482 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2483 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2484 rdev->devlist_generation ^
2485 (cfg80211_rdev_list_generation << 2)))
2486 goto nla_put_failure;
f5ea9120 2487
5b7ccaf3 2488 if (rdev->ops->get_channel) {
683b6d3b
JB		 2489 int ret;
2490 struct cfg80211_chan_def chandef;
2491
2492 ret = rdev_get_channel(rdev, wdev, &chandef);
2493 if (ret == 0) {
2494 if (nl80211_send_chandef(msg, &chandef))
2495 goto nla_put_failure;
2496 }
d91df0e3
PF		 2497 }
2498
d55d0d59
RM		 2499 if (rdev->ops->get_tx_power) {
2500 int dbm, ret;
2501
2502 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2503 if (ret == 0 &&
2504 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2505 DBM_TO_MBM(dbm)))
2506 goto nla_put_failure;
2507 }
2508
b84e7a05
AQ		 2509 if (wdev->ssid_len) {
2510 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2511 goto nla_put_failure;
2512 }
2513
053c095a
JB		 2514 genlmsg_end(msg, hdr);
2515 return 0;
55682965
JB		 2516
2517 nla_put_failure:
bc3ed28c
TG		 2518 genlmsg_cancel(msg, hdr);
2519 return -EMSGSIZE;
55682965
JB		 2520}
2521
2522static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2523{
2524 int wp_idx = 0;
2525 int if_idx = 0;
2526 int wp_start = cb->args[0];
2527 int if_start = cb->args[1];
f5ea9120 2528 struct cfg80211_registered_device *rdev;
55682965
JB		 2529 struct wireless_dev *wdev;
2530
5fe231e8 2531 rtnl_lock();
f5ea9120
JB		 2532 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2533 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2534 continue;
bba95fef
JB		 2535 if (wp_idx < wp_start) {
2536 wp_idx++;
55682965 2537 continue;
bba95fef 2538 }
55682965
JB		 2539 if_idx = 0;
2540
53873f13 2541 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
bba95fef
JB		 2542 if (if_idx < if_start) {
2543 if_idx++;
55682965 2544 continue;
bba95fef 2545 }
15e47304 2546 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2547 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2548 rdev, wdev, false) < 0) {
bba95fef
JB		 2549 goto out;
2550 }
2551 if_idx++;
55682965 2552 }
bba95fef
JB		 2553
2554 wp_idx++;
55682965 2555 }
bba95fef 2556 out:
5fe231e8 2557 rtnl_unlock();
55682965
JB		 2558
2559 cb->args[0] = wp_idx;
2560 cb->args[1] = if_idx;
2561
2562 return skb->len;
2563}
2564
2565static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2566{
2567 struct sk_buff *msg;
1b8ec87a 2568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2569 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2570
fd2120ca 2571 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2572 if (!msg)
4c476991 2573 return -ENOMEM;
55682965 2574
15e47304 2575 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2576 rdev, wdev, false) < 0) {
4c476991
JB		 2577 nlmsg_free(msg);
2578 return -ENOBUFS;
2579 }
55682965 2580
134e6375 2581 return genlmsg_reply(msg, info);
55682965
JB		 2582}
2583
66f7ac50
MW		 2584static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2585 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2586 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2587 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2588 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2589 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2590 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2591};
2592
2593static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2594{
2595 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2596 int flag;
2597
2598 *mntrflags = 0;
2599
2600 if (!nla)
2601 return -EINVAL;
2602
2603 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2604 nla, mntr_flags_policy))
2605 return -EINVAL;
2606
2607 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2608 if (flags[flag])
2609 *mntrflags |= (1<<flag);
2610
2611 return 0;
2612}
2613
9bc383de 2614static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2615 struct net_device *netdev, u8 use_4addr,
2616 enum nl80211_iftype iftype)
9bc383de 2617{
ad4bb6f8 2618 if (!use_4addr) {
f350a0a8 2619 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2620 return -EBUSY;
9bc383de 2621 return 0;
ad4bb6f8 2622 }
9bc383de
JB		 2623
2624 switch (iftype) {
2625 case NL80211_IFTYPE_AP_VLAN:
2626 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2627 return 0;
2628 break;
2629 case NL80211_IFTYPE_STATION:
2630 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2631 return 0;
2632 break;
2633 default:
2634 break;
2635 }
2636
2637 return -EOPNOTSUPP;
2638}
2639
55682965
JB		 2640static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2641{
4c476991 2642 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2643 struct vif_params params;
e36d56b6 2644 int err;
04a773ad 2645 enum nl80211_iftype otype, ntype;
4c476991 2646 struct net_device *dev = info->user_ptr[1];
92ffe055 2647 u32 _flags, *flags = NULL;
ac7f9cfa 2648 bool change = false;
55682965 2649
2ec600d6
LCC		 2650 memset(&params, 0, sizeof(params));
2651
04a773ad 2652 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2653
723b038d 2654 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2655 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2656 if (otype != ntype)
ac7f9cfa 2657 change = true;
4c476991
JB		 2658 if (ntype > NL80211_IFTYPE_MAX)
2659 return -EINVAL;
723b038d
JB		 2660 }
2661
92ffe055 2662 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2663 struct wireless_dev *wdev = dev->ieee80211_ptr;
2664
4c476991
JB		 2665 if (ntype != NL80211_IFTYPE_MESH_POINT)
2666 return -EINVAL;
29cbe68c
JB		 2667 if (netif_running(dev))
2668 return -EBUSY;
2669
2670 wdev_lock(wdev);
2671 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2672 IEEE80211_MAX_MESH_ID_LEN);
2673 wdev->mesh_id_up_len =
2674 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2675 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2676 wdev->mesh_id_up_len);
2677 wdev_unlock(wdev);
2ec600d6
LCC		 2678 }
2679
8b787643
FF		 2680 if (info->attrs[NL80211_ATTR_4ADDR]) {
2681 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2682 change = true;
ad4bb6f8 2683 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2684 if (err)
4c476991 2685 return err;
8b787643
FF		 2686 } else {
2687 params.use_4addr = -1;
2688 }
2689
92ffe055 2690 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2691 if (ntype != NL80211_IFTYPE_MONITOR)
2692 return -EINVAL;
92ffe055
JB		 2693 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2694 &_flags);
ac7f9cfa 2695 if (err)
4c476991 2696 return err;
ac7f9cfa
JB		 2697
2698 flags = &_flags;
2699 change = true;
92ffe055 2700 }
3b85875a 2701
c6e6a0c8
AE		 2702 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2703 const u8 *mumimo_groups;
2704 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2705
2706 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2707 return -EOPNOTSUPP;
2708
2709 mumimo_groups =
2710 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2711
2712 /* bits 0 and 63 are reserved and must be zero */
2713 if ((mumimo_groups[0] & BIT(7)) ||
2714 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(0)))
2715 return -EINVAL;
2716
2717 memcpy(params.vht_mumimo_groups, mumimo_groups,
2718 VHT_MUMIMO_GROUPS_DATA_LEN);
2719 change = true;
2720 }
2721
2722 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2723 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2724
2725 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2726 return -EOPNOTSUPP;
2727
2728 nla_memcpy(params.macaddr,
2729 info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR],
2730 ETH_ALEN);
2731 change = true;
2732 }
2733
18003297 2734 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2735 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2736 return -EOPNOTSUPP;
2737
ac7f9cfa 2738 if (change)
3d54d255 2739 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2740 else
2741 err = 0;
60719ffd 2742
9bc383de
JB		 2743 if (!err && params.use_4addr != -1)
2744 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2745
55682965
JB		 2746 return err;
2747}
2748
2749static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2750{
4c476991 2751 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2752 struct vif_params params;
84efbb84 2753 struct wireless_dev *wdev;
8f894be2 2754 struct sk_buff *msg, *event;
55682965
JB		 2755 int err;
2756 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2757 u32 flags;
55682965 2758
78f22b6a
JB		 2759 /* to avoid failing a new interface creation due to pending removal */
2760 cfg80211_destroy_ifaces(rdev);
2761
2ec600d6
LCC		 2762 memset(&params, 0, sizeof(params));
2763
55682965
JB		 2764 if (!info->attrs[NL80211_ATTR_IFNAME])
2765 return -EINVAL;
2766
2767 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2768 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2769 if (type > NL80211_IFTYPE_MAX)
2770 return -EINVAL;
2771 }
2772
79c97e97 2773 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2774 !(rdev->wiphy.interface_modes & (1 << type)))
2775 return -EOPNOTSUPP;
55682965 2776
e8f479b1
BG		 2777 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2778 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2779 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2780 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2781 ETH_ALEN);
2782 if (!is_valid_ether_addr(params.macaddr))
2783 return -EADDRNOTAVAIL;
2784 }
2785
9bc383de 2786 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2787 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2788 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2789 if (err)
4c476991 2790 return err;
9bc383de 2791 }
8b787643 2792
66f7ac50
MW		 2793 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2794 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2795 &flags);
e057d3c3 2796
18003297 2797 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2798 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2799 return -EOPNOTSUPP;
2800
a18c7192
JB		 2801 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2802 if (!msg)
2803 return -ENOMEM;
2804
e35e4d28
HG		 2805 wdev = rdev_add_virtual_intf(rdev,
2806 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2807 NET_NAME_USER, type, err ? NULL : &flags,
2808 &params);
d687cbb7
RM		 2809 if (WARN_ON(!wdev)) {
2810 nlmsg_free(msg);
2811 return -EPROTO;
2812 } else if (IS_ERR(wdev)) {
1c90f9d4 2813 nlmsg_free(msg);
84efbb84 2814 return PTR_ERR(wdev);
1c90f9d4 2815 }
2ec600d6 2816
18e5ca65 2817 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2818 wdev->owner_nlportid = info->snd_portid;
2819
98104fde
JB		 2820 switch (type) {
2821 case NL80211_IFTYPE_MESH_POINT:
2822 if (!info->attrs[NL80211_ATTR_MESH_ID])
2823 break;
29cbe68c
JB		 2824 wdev_lock(wdev);
2825 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2826 IEEE80211_MAX_MESH_ID_LEN);
2827 wdev->mesh_id_up_len =
2828 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2829 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2830 wdev->mesh_id_up_len);
2831 wdev_unlock(wdev);
98104fde
JB		 2832 break;
2833 case NL80211_IFTYPE_P2P_DEVICE:
2834 /*
2835 * P2P Device doesn't have a netdev, so doesn't go
2836 * through the netdev notifier and must be added here
2837 */
2838 mutex_init(&wdev->mtx);
2839 INIT_LIST_HEAD(&wdev->event_list);
2840 spin_lock_init(&wdev->event_lock);
2841 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2842 spin_lock_init(&wdev->mgmt_registrations_lock);
2843
98104fde 2844 wdev->identifier = ++rdev->wdev_id;
53873f13 2845 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
98104fde 2846 rdev->devlist_generation++;
98104fde
JB		 2847 break;
2848 default:
2849 break;
29cbe68c
JB		 2850 }
2851
15e47304 2852 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2853 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2854 nlmsg_free(msg);
2855 return -ENOBUFS;
2856 }
2857
8f894be2
TB		 2858 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2859 if (event) {
2860 if (nl80211_send_iface(event, 0, 0, 0,
2861 rdev, wdev, false) < 0) {
2862 nlmsg_free(event);
2863 goto out;
2864 }
2865
2866 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2867 event, 0, NL80211_MCGRP_CONFIG,
2868 GFP_KERNEL);
2869 }
2870
2871out:
1c90f9d4 2872 return genlmsg_reply(msg, info);
55682965
JB		 2873}
2874
2875static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2876{
4c476991 2877 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2878 struct wireless_dev *wdev = info->user_ptr[1];
8f894be2
TB		 2879 struct sk_buff *msg;
2880 int status;
55682965 2881
4c476991
JB		 2882 if (!rdev->ops->del_virtual_intf)
2883 return -EOPNOTSUPP;
55682965 2884
8f894be2
TB		 2885 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2886 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2887 nlmsg_free(msg);
2888 msg = NULL;
2889 }
2890
84efbb84
JB		 2891 /*
2892 * If we remove a wireless device without a netdev then clear
2893 * user_ptr[1] so that nl80211_post_doit won't dereference it
2894 * to check if it needs to do dev_put(). Otherwise it crashes
2895 * since the wdev has been freed, unlike with a netdev where
2896 * we need the dev_put() for the netdev to really be freed.
2897 */
2898 if (!wdev->netdev)
2899 info->user_ptr[1] = NULL;
2900
8f894be2
TB		 2901 status = rdev_del_virtual_intf(rdev, wdev);
2902 if (status >= 0 && msg)
2903 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2904 msg, 0, NL80211_MCGRP_CONFIG,
2905 GFP_KERNEL);
2906 else
2907 nlmsg_free(msg);
2908
2909 return status;
55682965
JB		 2910}
2911
1d9d9213
SW		 2912static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2913{
2914 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2915 struct net_device *dev = info->user_ptr[1];
2916 u16 noack_map;
2917
2918 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2919 return -EINVAL;
2920
2921 if (!rdev->ops->set_noack_map)
2922 return -EOPNOTSUPP;
2923
2924 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2925
e35e4d28 2926 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2927}
2928
41ade00f
JB		 2929struct get_key_cookie {
2930 struct sk_buff *msg;
2931 int error;
b9454e83 2932 int idx;
41ade00f
JB		 2933};
2934
2935static void get_key_callback(void *c, struct key_params *params)
2936{
b9454e83 2937 struct nlattr *key;
41ade00f
JB		 2938 struct get_key_cookie *cookie = c;
2939
9360ffd1
DM		 2940 if ((params->key &&
2941 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2942 params->key_len, params->key)) ||
2943 (params->seq &&
2944 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2945 params->seq_len, params->seq)) ||
2946 (params->cipher &&
2947 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2948 params->cipher)))
2949 goto nla_put_failure;
41ade00f 2950
b9454e83
JB		 2951 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2952 if (!key)
2953 goto nla_put_failure;
2954
9360ffd1
DM		 2955 if ((params->key &&
2956 nla_put(cookie->msg, NL80211_KEY_DATA,
2957 params->key_len, params->key)) ||
2958 (params->seq &&
2959 nla_put(cookie->msg, NL80211_KEY_SEQ,
2960 params->seq_len, params->seq)) ||
2961 (params->cipher &&
2962 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2963 params->cipher)))
2964 goto nla_put_failure;
b9454e83 2965
9360ffd1
DM		 2966 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2967 goto nla_put_failure;
b9454e83
JB		 2968
2969 nla_nest_end(cookie->msg, key);
2970
41ade00f
JB		 2971 return;
2972 nla_put_failure:
2973 cookie->error = 1;
2974}
2975
2976static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2977{
4c476991 2978 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2979 int err;
4c476991 2980 struct net_device *dev = info->user_ptr[1];
41ade00f 2981 u8 key_idx = 0;
e31b8213
JB		 2982 const u8 *mac_addr = NULL;
2983 bool pairwise;
41ade00f
JB		 2984 struct get_key_cookie cookie = {
2985 .error = 0,
2986 };
2987 void *hdr;
2988 struct sk_buff *msg;
2989
2990 if (info->attrs[NL80211_ATTR_KEY_IDX])
2991 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2992
3cfcf6ac 2993 if (key_idx > 5)
41ade00f
JB		 2994 return -EINVAL;
2995
2996 if (info->attrs[NL80211_ATTR_MAC])
2997 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2998
e31b8213
JB		 2999 pairwise = !!mac_addr;
3000 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3001 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
7a087e74 3002
e31b8213
JB		 3003 if (kt >= NUM_NL80211_KEYTYPES)
3004 return -EINVAL;
3005 if (kt != NL80211_KEYTYPE_GROUP &&
3006 kt != NL80211_KEYTYPE_PAIRWISE)
3007 return -EINVAL;
3008 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3009 }
3010
4c476991
JB		 3011 if (!rdev->ops->get_key)
3012 return -EOPNOTSUPP;
41ade00f 3013
0fa7b391
JB		 3014 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3015 return -ENOENT;
3016
fd2120ca 3017 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3018 if (!msg)
3019 return -ENOMEM;
41ade00f 3020
15e47304 3021 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 3022 NL80211_CMD_NEW_KEY);
cb35fba3 3023 if (!hdr)
9fe271af 3024 goto nla_put_failure;
41ade00f
JB		 3025
3026 cookie.msg = msg;
b9454e83 3027 cookie.idx = key_idx;
41ade00f 3028
9360ffd1
DM		 3029 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3030 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3031 goto nla_put_failure;
3032 if (mac_addr &&
3033 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3034 goto nla_put_failure;
41ade00f 3035
e35e4d28
HG		 3036 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3037 get_key_callback);
41ade00f
JB		 3038
3039 if (err)
6c95e2a2 3040 goto free_msg;
41ade00f
JB		 3041
3042 if (cookie.error)
3043 goto nla_put_failure;
3044
3045 genlmsg_end(msg, hdr);
4c476991 3046 return genlmsg_reply(msg, info);
41ade00f
JB		 3047
3048 nla_put_failure:
3049 err = -ENOBUFS;
6c95e2a2 3050 free_msg:
41ade00f 3051 nlmsg_free(msg);
41ade00f
JB		 3052 return err;
3053}
3054
3055static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3056{
4c476991 3057 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 3058 struct key_parse key;
41ade00f 3059 int err;
4c476991 3060 struct net_device *dev = info->user_ptr[1];
41ade00f 3061
b9454e83
JB		 3062 err = nl80211_parse_key(info, &key);
3063 if (err)
3064 return err;
41ade00f 3065
b9454e83 3066 if (key.idx < 0)
41ade00f
JB		 3067 return -EINVAL;
3068
b9454e83
JB		 3069 /* only support setting default key */
3070 if (!key.def && !key.defmgmt)
41ade00f
JB		 3071 return -EINVAL;
3072
dbd2fd65 3073 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 3074
dbd2fd65
JB		 3075 if (key.def) {
3076 if (!rdev->ops->set_default_key) {
3077 err = -EOPNOTSUPP;
3078 goto out;
3079 }
41ade00f 3080
dbd2fd65
JB		 3081 err = nl80211_key_allowed(dev->ieee80211_ptr);
3082 if (err)
3083 goto out;
3084
e35e4d28 3085 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 3086 key.def_uni, key.def_multi);
3087
3088 if (err)
3089 goto out;
fffd0934 3090
3d23e349 3091#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 3092 dev->ieee80211_ptr->wext.default_key = key.idx;
3093#endif
3094 } else {
3095 if (key.def_uni || !key.def_multi) {
3096 err = -EINVAL;
3097 goto out;
3098 }
3099
3100 if (!rdev->ops->set_default_mgmt_key) {
3101 err = -EOPNOTSUPP;
3102 goto out;
3103 }
3104
3105 err = nl80211_key_allowed(dev->ieee80211_ptr);
3106 if (err)
3107 goto out;
3108
e35e4d28 3109 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 3110 if (err)
3111 goto out;
3112
3113#ifdef CONFIG_CFG80211_WEXT
3114 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3115#endif
dbd2fd65
JB		 3116 }
3117
3118 out:
fffd0934 3119 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3120
41ade00f
JB		 3121 return err;
3122}
3123
3124static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3125{
4c476991 3126 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3127 int err;
4c476991 3128 struct net_device *dev = info->user_ptr[1];
b9454e83 3129 struct key_parse key;
e31b8213 3130 const u8 *mac_addr = NULL;
41ade00f 3131
b9454e83
JB		 3132 err = nl80211_parse_key(info, &key);
3133 if (err)
3134 return err;
41ade00f 3135
b9454e83 3136 if (!key.p.key)
41ade00f
JB		 3137 return -EINVAL;
3138
41ade00f
JB		 3139 if (info->attrs[NL80211_ATTR_MAC])
3140 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3141
e31b8213
JB		 3142 if (key.type == -1) {
3143 if (mac_addr)
3144 key.type = NL80211_KEYTYPE_PAIRWISE;
3145 else
3146 key.type = NL80211_KEYTYPE_GROUP;
3147 }
3148
3149 /* for now */
3150 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3151 key.type != NL80211_KEYTYPE_GROUP)
3152 return -EINVAL;
3153
4c476991
JB		 3154 if (!rdev->ops->add_key)
3155 return -EOPNOTSUPP;
25e47c18 3156
e31b8213
JB		 3157 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3158 key.type == NL80211_KEYTYPE_PAIRWISE,
3159 mac_addr))
4c476991 3160 return -EINVAL;
41ade00f 3161
fffd0934
JB		 3162 wdev_lock(dev->ieee80211_ptr);
3163 err = nl80211_key_allowed(dev->ieee80211_ptr);
3164 if (!err)
e35e4d28
HG		 3165 err = rdev_add_key(rdev, dev, key.idx,
3166 key.type == NL80211_KEYTYPE_PAIRWISE,
3167 mac_addr, &key.p);
fffd0934 3168 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3169
41ade00f
JB		 3170 return err;
3171}
3172
3173static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3174{
4c476991 3175 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3176 int err;
4c476991 3177 struct net_device *dev = info->user_ptr[1];
41ade00f 3178 u8 *mac_addr = NULL;
b9454e83 3179 struct key_parse key;
41ade00f 3180
b9454e83
JB		 3181 err = nl80211_parse_key(info, &key);
3182 if (err)
3183 return err;
41ade00f
JB		 3184
3185 if (info->attrs[NL80211_ATTR_MAC])
3186 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3187
e31b8213
JB		 3188 if (key.type == -1) {
3189 if (mac_addr)
3190 key.type = NL80211_KEYTYPE_PAIRWISE;
3191 else
3192 key.type = NL80211_KEYTYPE_GROUP;
3193 }
3194
3195 /* for now */
3196 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3197 key.type != NL80211_KEYTYPE_GROUP)
3198 return -EINVAL;
3199
4c476991
JB		 3200 if (!rdev->ops->del_key)
3201 return -EOPNOTSUPP;
41ade00f 3202
fffd0934
JB		 3203 wdev_lock(dev->ieee80211_ptr);
3204 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3205
0fa7b391 3206 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3207 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3208 err = -ENOENT;
3209
fffd0934 3210 if (!err)
e35e4d28
HG		 3211 err = rdev_del_key(rdev, dev, key.idx,
3212 key.type == NL80211_KEYTYPE_PAIRWISE,
3213 mac_addr);
41ade00f 3214
3d23e349 3215#ifdef CONFIG_CFG80211_WEXT
08645126 3216 if (!err) {
b9454e83 3217 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3218 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3219 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3220 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3221 }
3222#endif
fffd0934 3223 wdev_unlock(dev->ieee80211_ptr);
08645126 3224
41ade00f
JB		 3225 return err;
3226}
3227
77765eaf
VT		 3228/* This function returns an error or the number of nested attributes */
3229static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3230{
3231 struct nlattr *attr;
3232 int n_entries = 0, tmp;
3233
3234 nla_for_each_nested(attr, nl_attr, tmp) {
3235 if (nla_len(attr) != ETH_ALEN)
3236 return -EINVAL;
3237
3238 n_entries++;
3239 }
3240
3241 return n_entries;
3242}
3243
3244/*
3245 * This function parses ACL information and allocates memory for ACL data.
3246 * On successful return, the calling function is responsible to free the
3247 * ACL buffer returned by this function.
3248 */
3249static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3250 struct genl_info *info)
3251{
3252 enum nl80211_acl_policy acl_policy;
3253 struct nlattr *attr;
3254 struct cfg80211_acl_data *acl;
3255 int i = 0, n_entries, tmp;
3256
3257 if (!wiphy->max_acl_mac_addrs)
3258 return ERR_PTR(-EOPNOTSUPP);
3259
3260 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3261 return ERR_PTR(-EINVAL);
3262
3263 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3264 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3265 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3266 return ERR_PTR(-EINVAL);
3267
3268 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3269 return ERR_PTR(-EINVAL);
3270
3271 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3272 if (n_entries < 0)
3273 return ERR_PTR(n_entries);
3274
3275 if (n_entries > wiphy->max_acl_mac_addrs)
3276 return ERR_PTR(-ENOTSUPP);
3277
3278 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3279 GFP_KERNEL);
3280 if (!acl)
3281 return ERR_PTR(-ENOMEM);
3282
3283 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3284 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3285 i++;
3286 }
3287
3288 acl->n_acl_entries = n_entries;
3289 acl->acl_policy = acl_policy;
3290
3291 return acl;
3292}
3293
3294static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3295{
3296 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3297 struct net_device *dev = info->user_ptr[1];
3298 struct cfg80211_acl_data *acl;
3299 int err;
3300
3301 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3302 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3303 return -EOPNOTSUPP;
3304
3305 if (!dev->ieee80211_ptr->beacon_interval)
3306 return -EINVAL;
3307
3308 acl = parse_acl_data(&rdev->wiphy, info);
3309 if (IS_ERR(acl))
3310 return PTR_ERR(acl);
3311
3312 err = rdev_set_mac_acl(rdev, dev, acl);
3313
3314 kfree(acl);
3315
3316 return err;
3317}
3318
a1193be8 3319static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3320 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3321{
8860020e 3322 bool haveinfo = false;
ed1b6cc7 3323
a1193be8
SW		 3324 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3325 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3326 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3327 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3328 return -EINVAL;
3329
8860020e 3330 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3331
a1193be8
SW		 3332 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3333 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3334 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3335 if (!bcn->head_len)
3336 return -EINVAL;
3337 haveinfo = true;
ed1b6cc7
JB		 3338 }
3339
a1193be8
SW		 3340 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3341 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3342 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3343 haveinfo = true;
ed1b6cc7
JB		 3344 }
3345
4c476991
JB		 3346 if (!haveinfo)
3347 return -EINVAL;
3b85875a 3348
a1193be8
SW		 3349 if (attrs[NL80211_ATTR_IE]) {
3350 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3351 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3352 }
3353
a1193be8 3354 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3355 bcn->proberesp_ies =
a1193be8 3356 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3357 bcn->proberesp_ies_len =
a1193be8 3358 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3359 }
3360
a1193be8 3361 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3362 bcn->assocresp_ies =
a1193be8 3363 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3364 bcn->assocresp_ies_len =
a1193be8 3365 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3366 }
3367
a1193be8
SW		 3368 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3369 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3370 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3371 }
3372
8860020e
JB		 3373 return 0;
3374}
3375
46c1dd0c
FF		 3376static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3377 struct cfg80211_ap_settings *params)
3378{
3379 struct wireless_dev *wdev;
3380 bool ret = false;
3381
53873f13 3382 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
46c1dd0c
FF		 3383 if (wdev->iftype != NL80211_IFTYPE_AP &&
3384 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3385 continue;
3386
683b6d3b 3387 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3388 continue;
3389
683b6d3b 3390 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3391 ret = true;
3392 break;
3393 }
3394
46c1dd0c
FF		 3395 return ret;
3396}
3397
e39e5b5e
JM		 3398static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3399 enum nl80211_auth_type auth_type,
3400 enum nl80211_commands cmd)
3401{
3402 if (auth_type > NL80211_AUTHTYPE_MAX)
3403 return false;
3404
3405 switch (cmd) {
3406 case NL80211_CMD_AUTHENTICATE:
3407 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3408 auth_type == NL80211_AUTHTYPE_SAE)
3409 return false;
3410 return true;
3411 case NL80211_CMD_CONNECT:
3412 case NL80211_CMD_START_AP:
3413 /* SAE not supported yet */
3414 if (auth_type == NL80211_AUTHTYPE_SAE)
3415 return false;
3416 return true;
3417 default:
3418 return false;
3419 }
3420}
3421
8860020e
JB		 3422static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3423{
3424 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3425 struct net_device *dev = info->user_ptr[1];
3426 struct wireless_dev *wdev = dev->ieee80211_ptr;
3427 struct cfg80211_ap_settings params;
3428 int err;
3429
3430 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3431 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3432 return -EOPNOTSUPP;
3433
3434 if (!rdev->ops->start_ap)
3435 return -EOPNOTSUPP;
3436
3437 if (wdev->beacon_interval)
3438 return -EALREADY;
3439
3440 memset(&params, 0, sizeof(params));
3441
3442 /* these are required for START_AP */
3443 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3444 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3445 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3446 return -EINVAL;
3447
a1193be8 3448 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3449 if (err)
3450 return err;
3451
3452 params.beacon_interval =
3453 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3454 params.dtim_period =
3455 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3456
3457 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3458 if (err)
3459 return err;
3460
3461 /*
3462 * In theory, some of these attributes should be required here
3463 * but since they were not used when the command was originally
3464 * added, keep them optional for old user space programs to let
3465 * them continue to work with drivers that do not need the
3466 * additional information -- drivers must check!
3467 */
3468 if (info->attrs[NL80211_ATTR_SSID]) {
3469 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3470 params.ssid_len =
3471 nla_len(info->attrs[NL80211_ATTR_SSID]);
3472 if (params.ssid_len == 0 ||
3473 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3474 return -EINVAL;
3475 }
3476
3477 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3478 params.hidden_ssid = nla_get_u32(
3479 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3480 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3481 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3482 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3483 return -EINVAL;
3484 }
3485
3486 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3487
3488 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3489 params.auth_type = nla_get_u32(
3490 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3491 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3492 NL80211_CMD_START_AP))
8860020e
JB		 3493 return -EINVAL;
3494 } else
3495 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3496
3497 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3498 NL80211_MAX_NR_CIPHER_SUITES);
3499 if (err)
3500 return err;
3501
1b658f11
VT		 3502 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3503 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3504 return -EOPNOTSUPP;
3505 params.inactivity_timeout = nla_get_u16(
3506 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3507 }
3508
53cabad7
JB		 3509 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3510 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3511 return -EINVAL;
3512 params.p2p_ctwindow =
3513 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3514 if (params.p2p_ctwindow > 127)
3515 return -EINVAL;
3516 if (params.p2p_ctwindow != 0 &&
3517 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3518 return -EINVAL;
3519 }
3520
3521 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3522 u8 tmp;
3523
3524 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3525 return -EINVAL;
3526 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3527 if (tmp > 1)
3528 return -EINVAL;
3529 params.p2p_opp_ps = tmp;
3530 if (params.p2p_opp_ps != 0 &&
3531 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3532 return -EINVAL;
3533 }
3534
aa430da4 3535 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3536 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3537 if (err)
3538 return err;
3539 } else if (wdev->preset_chandef.chan) {
3540 params.chandef = wdev->preset_chandef;
46c1dd0c 3541 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3542 return -EINVAL;
3543
923b352f
AN		 3544 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
3545 wdev->iftype))
aa430da4
JB		 3546 return -EINVAL;
3547
18998c38
EP		 3548 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3549 params.smps_mode =
3550 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3551 switch (params.smps_mode) {
3552 case NL80211_SMPS_OFF:
3553 break;
3554 case NL80211_SMPS_STATIC:
3555 if (!(rdev->wiphy.features &
3556 NL80211_FEATURE_STATIC_SMPS))
3557 return -EINVAL;
3558 break;
3559 case NL80211_SMPS_DYNAMIC:
3560 if (!(rdev->wiphy.features &
3561 NL80211_FEATURE_DYNAMIC_SMPS))
3562 return -EINVAL;
3563 break;
3564 default:
3565 return -EINVAL;
3566 }
3567 } else {
3568 params.smps_mode = NL80211_SMPS_OFF;
3569 }
3570
6e8ef842
PK		 3571 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
3572 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
3573 return -EOPNOTSUPP;
3574
4baf6bea
OO		 3575 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3576 params.acl = parse_acl_data(&rdev->wiphy, info);
3577 if (IS_ERR(params.acl))
3578 return PTR_ERR(params.acl);
3579 }
3580
c56589ed 3581 wdev_lock(wdev);
e35e4d28 3582 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3583 if (!err) {
683b6d3b 3584 wdev->preset_chandef = params.chandef;
8860020e 3585 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3586 wdev->chandef = params.chandef;
06e191e2
AQ		 3587 wdev->ssid_len = params.ssid_len;
3588 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3589 }
c56589ed 3590 wdev_unlock(wdev);
77765eaf
VT		 3591
3592 kfree(params.acl);
3593
56d1893d 3594 return err;
ed1b6cc7
JB		 3595}
3596
8860020e
JB		 3597static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3598{
3599 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3600 struct net_device *dev = info->user_ptr[1];
3601 struct wireless_dev *wdev = dev->ieee80211_ptr;
3602 struct cfg80211_beacon_data params;
3603 int err;
3604
3605 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3606 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3607 return -EOPNOTSUPP;
3608
3609 if (!rdev->ops->change_beacon)
3610 return -EOPNOTSUPP;
3611
3612 if (!wdev->beacon_interval)
3613 return -EINVAL;
3614
a1193be8 3615 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3616 if (err)
3617 return err;
3618
c56589ed
SW		 3619 wdev_lock(wdev);
3620 err = rdev_change_beacon(rdev, dev, &params);
3621 wdev_unlock(wdev);
3622
3623 return err;
8860020e
JB		 3624}
3625
3626static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3627{
4c476991
JB		 3628 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3629 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3630
7c8d5e03 3631 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3632}
3633
5727ef1b
JB		 3634static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3635 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3636 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3637 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3638 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3639 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3640 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3641};
3642
eccb8e8f 3643static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3644 enum nl80211_iftype iftype,
eccb8e8f 3645 struct station_parameters *params)
5727ef1b
JB		 3646{
3647 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3648 struct nlattr *nla;
5727ef1b
JB		 3649 int flag;
3650
eccb8e8f
JB		 3651 /*
3652 * Try parsing the new attribute first so userspace
3653 * can specify both for older kernels.
3654 */
3655 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3656 if (nla) {
3657 struct nl80211_sta_flag_update *sta_flags;
3658
3659 sta_flags = nla_data(nla);
3660 params->sta_flags_mask = sta_flags->mask;
3661 params->sta_flags_set = sta_flags->set;
77ee7c89 3662 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3663 if ((params->sta_flags_mask |
3664 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3665 return -EINVAL;
3666 return 0;
3667 }
3668
3669 /* if present, parse the old attribute */
5727ef1b 3670
eccb8e8f 3671 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3672 if (!nla)
3673 return 0;
3674
3675 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3676 nla, sta_flags_policy))
3677 return -EINVAL;
3678
bdd3ae3d
JB		 3679 /*
3680 * Only allow certain flags for interface types so that
3681 * other attributes are silently ignored. Remember that
3682 * this is backward compatibility code with old userspace
3683 * and shouldn't be hit in other cases anyway.
3684 */
3685 switch (iftype) {
3686 case NL80211_IFTYPE_AP:
3687 case NL80211_IFTYPE_AP_VLAN:
3688 case NL80211_IFTYPE_P2P_GO:
3689 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3690 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3691 BIT(NL80211_STA_FLAG_WME) |
3692 BIT(NL80211_STA_FLAG_MFP);
3693 break;
3694 case NL80211_IFTYPE_P2P_CLIENT:
3695 case NL80211_IFTYPE_STATION:
3696 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3697 BIT(NL80211_STA_FLAG_TDLS_PEER);
3698 break;
3699 case NL80211_IFTYPE_MESH_POINT:
3700 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3701 BIT(NL80211_STA_FLAG_MFP) |
3702 BIT(NL80211_STA_FLAG_AUTHORIZED);
3703 default:
3704 return -EINVAL;
3705 }
5727ef1b 3706
3383b5a6
JB		 3707 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3708 if (flags[flag]) {
eccb8e8f 3709 params->sta_flags_set |= (1<<flag);
5727ef1b 3710
3383b5a6
JB		 3711 /* no longer support new API additions in old API */
3712 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3713 return -EINVAL;
3714 }
3715 }
3716
5727ef1b
JB		 3717 return 0;
3718}
3719
c8dcfd8a
FF		 3720static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3721 int attr)
3722{
3723 struct nlattr *rate;
8eb41c8d
VK		 3724 u32 bitrate;
3725 u16 bitrate_compat;
b51f3bee 3726 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 3727
3728 rate = nla_nest_start(msg, attr);
3729 if (!rate)
db9c64cf 3730 return false;
c8dcfd8a
FF		 3731
3732 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3733 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3734 /* report 16-bit bitrate only if we can */
3735 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3736 if (bitrate > 0 &&
3737 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3738 return false;
3739 if (bitrate_compat > 0 &&
3740 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3741 return false;
3742
b51f3bee
JB		 3743 switch (info->bw) {
3744 case RATE_INFO_BW_5:
3745 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3746 break;
3747 case RATE_INFO_BW_10:
3748 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3749 break;
3750 default:
3751 WARN_ON(1);
3752 /* fall through */
3753 case RATE_INFO_BW_20:
3754 rate_flg = 0;
3755 break;
3756 case RATE_INFO_BW_40:
3757 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3758 break;
3759 case RATE_INFO_BW_80:
3760 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3761 break;
3762 case RATE_INFO_BW_160:
3763 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3764 break;
3765 }
3766
3767 if (rate_flg && nla_put_flag(msg, rate_flg))
3768 return false;
3769
db9c64cf
JB		 3770 if (info->flags & RATE_INFO_FLAGS_MCS) {
3771 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3772 return false;
db9c64cf
JB		 3773 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3774 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3775 return false;
3776 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3777 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3778 return false;
3779 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3780 return false;
db9c64cf
JB		 3781 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3782 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3783 return false;
3784 }
c8dcfd8a
FF		 3785
3786 nla_nest_end(msg, rate);
3787 return true;
c8dcfd8a
FF		 3788}
3789
119363c7
FF		 3790static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3791 int id)
3792{
3793 void *attr;
3794 int i = 0;
3795
3796 if (!mask)
3797 return true;
3798
3799 attr = nla_nest_start(msg, id);
3800 if (!attr)
3801 return false;
3802
3803 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3804 if (!(mask & BIT(i)))
3805 continue;
3806
3807 if (nla_put_u8(msg, i, signal[i]))
3808 return false;
3809 }
3810
3811 nla_nest_end(msg, attr);
3812
3813 return true;
3814}
3815
cf5ead82
JB		 3816static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3817 u32 seq, int flags,
66266b3a
JL		 3818 struct cfg80211_registered_device *rdev,
3819 struct net_device *dev,
98b62183 3820 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3821{
3822 void *hdr;
f4263c98 3823 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3824
cf5ead82 3825 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 3826 if (!hdr)
3827 return -1;
3828
9360ffd1
DM		 3829 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3830 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3831 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3832 goto nla_put_failure;
f5ea9120 3833
2ec600d6
LCC		 3834 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3835 if (!sinfoattr)
fd5b74dc 3836 goto nla_put_failure;
319090bf
JB		 3837
3838#define PUT_SINFO(attr, memb, type) do { \
d686b920 3839 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
739960f1 3840 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
319090bf
JB		 3841 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3842 sinfo->memb)) \
3843 goto nla_put_failure; \
3844 } while (0)
d686b920
JB		 3845#define PUT_SINFO_U64(attr, memb) do { \
3846 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
3847 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
3848 sinfo->memb, NL80211_STA_INFO_PAD)) \
3849 goto nla_put_failure; \
3850 } while (0)
319090bf
JB		 3851
3852 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3853 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3854
3855 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3856 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 3857 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3858 (u32)sinfo->rx_bytes))
9360ffd1 3859 goto nla_put_failure;
319090bf
JB		 3860
3861 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3862 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3863 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3864 (u32)sinfo->tx_bytes))
3865 goto nla_put_failure;
319090bf 3866
d686b920
JB		 3867 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
3868 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
319090bf
JB		 3869 PUT_SINFO(LLID, llid, u16);
3870 PUT_SINFO(PLID, plid, u16);
3871 PUT_SINFO(PLINK_STATE, plink_state, u8);
d686b920 3872 PUT_SINFO_U64(RX_DURATION, rx_duration);
319090bf 3873
66266b3a
JL		 3874 switch (rdev->wiphy.signal_type) {
3875 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 3876 PUT_SINFO(SIGNAL, signal, u8);
3877 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 3878 break;
3879 default:
3880 break;
3881 }
319090bf 3882 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 3883 if (!nl80211_put_signal(msg, sinfo->chains,
3884 sinfo->chain_signal,
3885 NL80211_STA_INFO_CHAIN_SIGNAL))
3886 goto nla_put_failure;
3887 }
319090bf 3888 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 3889 if (!nl80211_put_signal(msg, sinfo->chains,
3890 sinfo->chain_signal_avg,
3891 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3892 goto nla_put_failure;
3893 }
319090bf 3894 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 3895 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3896 NL80211_STA_INFO_TX_BITRATE))
3897 goto nla_put_failure;
3898 }
319090bf 3899 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 3900 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3901 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3902 goto nla_put_failure;
420e7fab 3903 }
319090bf
JB		 3904
3905 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3906 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3907 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3908 PUT_SINFO(TX_FAILED, tx_failed, u32);
3909 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3910 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3911 PUT_SINFO(LOCAL_PM, local_pm, u32);
3912 PUT_SINFO(PEER_PM, peer_pm, u32);
3913 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3914
3915 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 3916 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3917 if (!bss_param)
3918 goto nla_put_failure;
3919
9360ffd1
DM		 3920 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3921 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3922 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3923 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3924 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3925 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3926 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3927 sinfo->bss_param.dtim_period) ||
3928 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3929 sinfo->bss_param.beacon_interval))
3930 goto nla_put_failure;
f4263c98
PS		 3931
3932 nla_nest_end(msg, bss_param);
3933 }
319090bf 3934 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 3935 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3936 sizeof(struct nl80211_sta_flag_update),
3937 &sinfo->sta_flags))
3938 goto nla_put_failure;
319090bf 3939
d686b920
JB		 3940 PUT_SINFO_U64(T_OFFSET, t_offset);
3941 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
3942 PUT_SINFO_U64(BEACON_RX, rx_beacon);
a76b1942 3943 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 3944
3945#undef PUT_SINFO
d686b920 3946#undef PUT_SINFO_U64
6de39808
JB		 3947
3948 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3949 struct nlattr *tidsattr;
3950 int tid;
3951
3952 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3953 if (!tidsattr)
3954 goto nla_put_failure;
3955
3956 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3957 struct cfg80211_tid_stats *tidstats;
3958 struct nlattr *tidattr;
3959
3960 tidstats = &sinfo->pertid[tid];
3961
3962 if (!tidstats->filled)
3963 continue;
3964
3965 tidattr = nla_nest_start(msg, tid + 1);
3966 if (!tidattr)
3967 goto nla_put_failure;
3968
d686b920 3969#define PUT_TIDVAL_U64(attr, memb) do { \
6de39808 3970 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
d686b920
JB		 3971 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
3972 tidstats->memb, NL80211_TID_STATS_PAD)) \
6de39808
JB		 3973 goto nla_put_failure; \
3974 } while (0)
3975
d686b920
JB		 3976 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
3977 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
3978 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
3979 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
6de39808 3980
d686b920 3981#undef PUT_TIDVAL_U64
6de39808
JB		 3982 nla_nest_end(msg, tidattr);
3983 }
3984
3985 nla_nest_end(msg, tidsattr);
3986 }
3987
2ec600d6 3988 nla_nest_end(msg, sinfoattr);
fd5b74dc 3989
319090bf 3990 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 3991 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3992 sinfo->assoc_req_ies))
3993 goto nla_put_failure;
50d3dfb7 3994
053c095a
JB		 3995 genlmsg_end(msg, hdr);
3996 return 0;
fd5b74dc
JB		 3997
3998 nla_put_failure:
bc3ed28c
TG		 3999 genlmsg_cancel(msg, hdr);
4000 return -EMSGSIZE;
fd5b74dc
JB		 4001}
4002
2ec600d6 4003static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 4004 struct netlink_callback *cb)
2ec600d6 4005{
2ec600d6 4006 struct station_info sinfo;
1b8ec87a 4007 struct cfg80211_registered_device *rdev;
97990a06 4008 struct wireless_dev *wdev;
2ec600d6 4009 u8 mac_addr[ETH_ALEN];
97990a06 4010 int sta_idx = cb->args[2];
2ec600d6 4011 int err;
2ec600d6 4012
1b8ec87a 4013 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4014 if (err)
4015 return err;
bba95fef 4016
97990a06
JB		 4017 if (!wdev->netdev) {
4018 err = -EINVAL;
4019 goto out_err;
4020 }
4021
1b8ec87a 4022 if (!rdev->ops->dump_station) {
eec60b03 4023 err = -EOPNOTSUPP;
bba95fef
JB		 4024 goto out_err;
4025 }
4026
bba95fef 4027 while (1) {
f612cedf 4028 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 4029 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 4030 mac_addr, &sinfo);
bba95fef
JB		 4031 if (err == -ENOENT)
4032 break;
4033 if (err)
3b85875a 4034 goto out_err;
bba95fef 4035
cf5ead82 4036 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 4037 NETLINK_CB(cb->skb).portid,
bba95fef 4038 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 4039 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 4040 &sinfo) < 0)
4041 goto out;
4042
4043 sta_idx++;
4044 }
4045
bba95fef 4046 out:
97990a06 4047 cb->args[2] = sta_idx;
bba95fef 4048 err = skb->len;
bba95fef 4049 out_err:
1b8ec87a 4050 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 4051
4052 return err;
2ec600d6 4053}
fd5b74dc 4054
5727ef1b
JB		 4055static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4056{
4c476991
JB		 4057 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4058 struct net_device *dev = info->user_ptr[1];
2ec600d6 4059 struct station_info sinfo;
fd5b74dc
JB		 4060 struct sk_buff *msg;
4061 u8 *mac_addr = NULL;
4c476991 4062 int err;
fd5b74dc 4063
2ec600d6 4064 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 4065
4066 if (!info->attrs[NL80211_ATTR_MAC])
4067 return -EINVAL;
4068
4069 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4070
4c476991
JB		 4071 if (!rdev->ops->get_station)
4072 return -EOPNOTSUPP;
3b85875a 4073
e35e4d28 4074 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 4075 if (err)
4c476991 4076 return err;
2ec600d6 4077
fd2120ca 4078 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 4079 if (!msg)
4c476991 4080 return -ENOMEM;
fd5b74dc 4081
cf5ead82
JB		 4082 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4083 info->snd_portid, info->snd_seq, 0,
66266b3a 4084 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 4085 nlmsg_free(msg);
4086 return -ENOBUFS;
4087 }
3b85875a 4088
4c476991 4089 return genlmsg_reply(msg, info);
5727ef1b
JB		 4090}
4091
77ee7c89
JB		 4092int cfg80211_check_station_change(struct wiphy *wiphy,
4093 struct station_parameters *params,
4094 enum cfg80211_station_type statype)
4095{
e4208427
AB		 4096 if (params->listen_interval != -1 &&
4097 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 4098 return -EINVAL;
e4208427 4099
17b94247
AB		 4100 if (params->support_p2p_ps != -1 &&
4101 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4102 return -EINVAL;
4103
c72e1140 4104 if (params->aid &&
e4208427
AB		 4105 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4106 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 4107 return -EINVAL;
4108
4109 /* When you run into this, adjust the code below for the new flag */
4110 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4111
4112 switch (statype) {
eef941e6
TP		 4113 case CFG80211_STA_MESH_PEER_KERNEL:
4114 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4115 /*
4116 * No ignoring the TDLS flag here -- the userspace mesh
4117 * code doesn't have the bug of including TDLS in the
4118 * mask everywhere.
4119 */
4120 if (params->sta_flags_mask &
4121 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4122 BIT(NL80211_STA_FLAG_MFP) |
4123 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4124 return -EINVAL;
4125 break;
4126 case CFG80211_STA_TDLS_PEER_SETUP:
4127 case CFG80211_STA_TDLS_PEER_ACTIVE:
4128 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4129 return -EINVAL;
4130 /* ignore since it can't change */
4131 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4132 break;
4133 default:
4134 /* disallow mesh-specific things */
4135 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4136 return -EINVAL;
4137 if (params->local_pm)
4138 return -EINVAL;
4139 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4140 return -EINVAL;
4141 }
4142
4143 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4144 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4145 /* TDLS can't be set, ... */
4146 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4147 return -EINVAL;
4148 /*
4149 * ... but don't bother the driver with it. This works around
4150 * a hostapd/wpa_supplicant issue -- it always includes the
4151 * TLDS_PEER flag in the mask even for AP mode.
4152 */
4153 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4154 }
4155
47edb11b
AB		 4156 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4157 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4158 /* reject other things that can't change */
4159 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4160 return -EINVAL;
4161 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4162 return -EINVAL;
4163 if (params->supported_rates)
4164 return -EINVAL;
4165 if (params->ext_capab || params->ht_capa || params->vht_capa)
4166 return -EINVAL;
4167 }
4168
47edb11b
AB		 4169 if (statype != CFG80211_STA_AP_CLIENT &&
4170 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4171 if (params->vlan)
4172 return -EINVAL;
4173 }
4174
4175 switch (statype) {
4176 case CFG80211_STA_AP_MLME_CLIENT:
4177 /* Use this only for authorizing/unauthorizing a station */
4178 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4179 return -EOPNOTSUPP;
4180 break;
4181 case CFG80211_STA_AP_CLIENT:
47edb11b 4182 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4183 /* accept only the listed bits */
4184 if (params->sta_flags_mask &
4185 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4186 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4187 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4188 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4189 BIT(NL80211_STA_FLAG_WME) |
4190 BIT(NL80211_STA_FLAG_MFP)))
4191 return -EINVAL;
4192
4193 /* but authenticated/associated only if driver handles it */
4194 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4195 params->sta_flags_mask &
4196 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4197 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4198 return -EINVAL;
4199 break;
4200 case CFG80211_STA_IBSS:
4201 case CFG80211_STA_AP_STA:
4202 /* reject any changes other than AUTHORIZED */
4203 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4204 return -EINVAL;
4205 break;
4206 case CFG80211_STA_TDLS_PEER_SETUP:
4207 /* reject any changes other than AUTHORIZED or WME */
4208 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4209 BIT(NL80211_STA_FLAG_WME)))
4210 return -EINVAL;
4211 /* force (at least) rates when authorizing */
4212 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4213 !params->supported_rates)
4214 return -EINVAL;
4215 break;
4216 case CFG80211_STA_TDLS_PEER_ACTIVE:
4217 /* reject any changes */
4218 return -EINVAL;
eef941e6 4219 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4220 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4221 return -EINVAL;
4222 break;
eef941e6 4223 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4224 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4225 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4226 return -EINVAL;
4227 break;
4228 }
4229
4230 return 0;
4231}
4232EXPORT_SYMBOL(cfg80211_check_station_change);
4233
5727ef1b 4234/*
c258d2de 4235 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4236 */
80b99899
JB		 4237static struct net_device *get_vlan(struct genl_info *info,
4238 struct cfg80211_registered_device *rdev)
5727ef1b 4239{
463d0183 4240 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4241 struct net_device *v;
4242 int ret;
4243
4244 if (!vlanattr)
4245 return NULL;
4246
4247 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4248 if (!v)
4249 return ERR_PTR(-ENODEV);
4250
4251 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4252 ret = -EINVAL;
4253 goto error;
5727ef1b 4254 }
80b99899 4255
77ee7c89
JB		 4256 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4257 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4258 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4259 ret = -EINVAL;
4260 goto error;
4261 }
4262
80b99899
JB		 4263 if (!netif_running(v)) {
4264 ret = -ENETDOWN;
4265 goto error;
4266 }
4267
4268 return v;
4269 error:
4270 dev_put(v);
4271 return ERR_PTR(ret);
5727ef1b
JB		 4272}
4273
94e860f1
JB		 4274static const struct nla_policy
4275nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4276 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4277 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4278};
4279
ff276691
JB		 4280static int nl80211_parse_sta_wme(struct genl_info *info,
4281 struct station_parameters *params)
df881293 4282{
df881293
JM		 4283 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4284 struct nlattr *nla;
4285 int err;
4286
df881293
JM		 4287 /* parse WME attributes if present */
4288 if (!info->attrs[NL80211_ATTR_STA_WME])
4289 return 0;
4290
4291 nla = info->attrs[NL80211_ATTR_STA_WME];
4292 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4293 nl80211_sta_wme_policy);
4294 if (err)
4295 return err;
4296
4297 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4298 params->uapsd_queues = nla_get_u8(
4299 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4300 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4301 return -EINVAL;
4302
4303 if (tb[NL80211_STA_WME_MAX_SP])
4304 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4305
4306 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4307 return -EINVAL;
4308
4309 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4310
4311 return 0;
4312}
4313
c01fc9ad
SD		 4314static int nl80211_parse_sta_channel_info(struct genl_info *info,
4315 struct station_parameters *params)
4316{
4317 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4318 params->supported_channels =
4319 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4320 params->supported_channels_len =
4321 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4322 /*
4323 * Need to include at least one (first channel, number of
4324 * channels) tuple for each subband, and must have proper
4325 * tuples for the rest of the data as well.
4326 */
4327 if (params->supported_channels_len < 2)
4328 return -EINVAL;
4329 if (params->supported_channels_len % 2)
4330 return -EINVAL;
4331 }
4332
4333 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4334 params->supported_oper_classes =
4335 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4336 params->supported_oper_classes_len =
4337 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4338 /*
4339 * The value of the Length field of the Supported Operating
4340 * Classes element is between 2 and 253.
4341 */
4342 if (params->supported_oper_classes_len < 2 ||
4343 params->supported_oper_classes_len > 253)
4344 return -EINVAL;
4345 }
4346 return 0;
4347}
4348
ff276691
JB		 4349static int nl80211_set_station_tdls(struct genl_info *info,
4350 struct station_parameters *params)
4351{
c01fc9ad 4352 int err;
ff276691 4353 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4354 if (info->attrs[NL80211_ATTR_PEER_AID])
4355 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4356 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4357 params->ht_capa =
4358 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4359 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4360 params->vht_capa =
4361 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4362
c01fc9ad
SD		 4363 err = nl80211_parse_sta_channel_info(info, params);
4364 if (err)
4365 return err;
4366
ff276691
JB		 4367 return nl80211_parse_sta_wme(info, params);
4368}
4369
5727ef1b
JB		 4370static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4371{
4c476991 4372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4373 struct net_device *dev = info->user_ptr[1];
5727ef1b 4374 struct station_parameters params;
77ee7c89
JB		 4375 u8 *mac_addr;
4376 int err;
5727ef1b
JB		 4377
4378 memset(&params, 0, sizeof(params));
4379
77ee7c89
JB		 4380 if (!rdev->ops->change_station)
4381 return -EOPNOTSUPP;
4382
e4208427
AB		 4383 /*
4384 * AID and listen_interval properties can be set only for unassociated
4385 * station. Include these parameters here and will check them in
4386 * cfg80211_check_station_change().
4387 */
a9bc31e4
AB		 4388 if (info->attrs[NL80211_ATTR_STA_AID])
4389 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4390
4391 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4392 params.listen_interval =
4393 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4394 else
4395 params.listen_interval = -1;
5727ef1b 4396
17b94247
AB		 4397 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4398 u8 tmp;
4399
4400 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4401 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4402 return -EINVAL;
4403
4404 params.support_p2p_ps = tmp;
4405 } else {
4406 params.support_p2p_ps = -1;
4407 }
4408
5727ef1b
JB		 4409 if (!info->attrs[NL80211_ATTR_MAC])
4410 return -EINVAL;
4411
4412 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4413
4414 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4415 params.supported_rates =
4416 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4417 params.supported_rates_len =
4418 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4419 }
4420
9d62a986
JM		 4421 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4422 params.capability =
4423 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4424 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4425 }
4426
4427 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4428 params.ext_capab =
4429 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4430 params.ext_capab_len =
4431 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4432 }
4433
bdd3ae3d 4434 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4435 return -EINVAL;
4436
f8bacc21 4437 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4438 params.plink_action =
f8bacc21
JB		 4439 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4440 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4441 return -EINVAL;
4442 }
2ec600d6 4443
f8bacc21 4444 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4445 params.plink_state =
f8bacc21
JB		 4446 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4447 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4448 return -EINVAL;
7d27a0ba
MH		 4449 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4450 params.peer_aid = nla_get_u16(
4451 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4452 if (params.peer_aid > IEEE80211_MAX_AID)
4453 return -EINVAL;
4454 }
f8bacc21
JB		 4455 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4456 }
9c3990aa 4457
3b1c5a53
MP		 4458 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4459 enum nl80211_mesh_power_mode pm = nla_get_u32(
4460 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4461
4462 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4463 pm > NL80211_MESH_POWER_MAX)
4464 return -EINVAL;
4465
4466 params.local_pm = pm;
4467 }
4468
77ee7c89
JB		 4469 /* Include parameters for TDLS peer (will check later) */
4470 err = nl80211_set_station_tdls(info, &params);
4471 if (err)
4472 return err;
4473
4474 params.vlan = get_vlan(info, rdev);
4475 if (IS_ERR(params.vlan))
4476 return PTR_ERR(params.vlan);
4477
a97f4424
JB		 4478 switch (dev->ieee80211_ptr->iftype) {
4479 case NL80211_IFTYPE_AP:
4480 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4481 case NL80211_IFTYPE_P2P_GO:
074ac8df 4482 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4483 case NL80211_IFTYPE_STATION:
267335d6 4484 case NL80211_IFTYPE_ADHOC:
a97f4424 4485 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4486 break;
4487 default:
77ee7c89
JB		 4488 err = -EOPNOTSUPP;
4489 goto out_put_vlan;
034d655e
JB		 4490 }
4491
77ee7c89 4492 /* driver will call cfg80211_check_station_change() */
e35e4d28 4493 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4494
77ee7c89 4495 out_put_vlan:
5727ef1b
JB		 4496 if (params.vlan)
4497 dev_put(params.vlan);
3b85875a 4498
5727ef1b
JB		 4499 return err;
4500}
4501
4502static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4503{
4c476991 4504 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4505 int err;
4c476991 4506 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4507 struct station_parameters params;
4508 u8 *mac_addr = NULL;
bda95eb1
JB		 4509 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4510 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 4511
4512 memset(&params, 0, sizeof(params));
4513
984c311b
JB		 4514 if (!rdev->ops->add_station)
4515 return -EOPNOTSUPP;
4516
5727ef1b
JB		 4517 if (!info->attrs[NL80211_ATTR_MAC])
4518 return -EINVAL;
4519
5727ef1b
JB		 4520 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4521 return -EINVAL;
4522
4523 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4524 return -EINVAL;
4525
5e4b6f56
JM		 4526 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4527 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4528 return -EINVAL;
4529
5727ef1b
JB		 4530 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4531 params.supported_rates =
4532 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4533 params.supported_rates_len =
4534 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4535 params.listen_interval =
4536 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4537
17b94247
AB		 4538 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4539 u8 tmp;
4540
4541 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4542 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4543 return -EINVAL;
4544
4545 params.support_p2p_ps = tmp;
4546 } else {
4547 /*
4548 * if not specified, assume it's supported for P2P GO interface,
4549 * and is NOT supported for AP interface
4550 */
4551 params.support_p2p_ps =
4552 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
4553 }
4554
3d124ea2 4555 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4556 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4557 else
4558 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4559 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4560 return -EINVAL;
51b50fbe 4561
9d62a986
JM		 4562 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4563 params.capability =
4564 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4565 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4566 }
4567
4568 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4569 params.ext_capab =
4570 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4571 params.ext_capab_len =
4572 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4573 }
4574
36aedc90
JM		 4575 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4576 params.ht_capa =
4577 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4578
f461be3e
MP		 4579 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4580 params.vht_capa =
4581 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4582
60f4a7b1
MK		 4583 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4584 params.opmode_notif_used = true;
4585 params.opmode_notif =
4586 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4587 }
4588
f8bacc21 4589 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4590 params.plink_action =
f8bacc21
JB		 4591 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4592 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4593 return -EINVAL;
4594 }
96b78dff 4595
c01fc9ad
SD		 4596 err = nl80211_parse_sta_channel_info(info, &params);
4597 if (err)
4598 return err;
4599
ff276691
JB		 4600 err = nl80211_parse_sta_wme(info, &params);
4601 if (err)
4602 return err;
bdd90d5e 4603
bdd3ae3d 4604 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4605 return -EINVAL;
4606
496fcc29
JB		 4607 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4608 * as userspace might just pass through the capabilities from the IEs
4609 * directly, rather than enforcing this restriction and returning an
4610 * error in this case.
4611 */
4612 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4613 params.ht_capa = NULL;
4614 params.vht_capa = NULL;
4615 }
4616
77ee7c89
JB		 4617 /* When you run into this, adjust the code below for the new flag */
4618 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4619
bdd90d5e
JB		 4620 switch (dev->ieee80211_ptr->iftype) {
4621 case NL80211_IFTYPE_AP:
4622 case NL80211_IFTYPE_AP_VLAN:
4623 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4624 /* ignore WME attributes if iface/sta is not capable */
4625 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4626 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4627 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4628
bdd90d5e 4629 /* TDLS peers cannot be added */
3d124ea2
JM		 4630 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4631 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4632 return -EINVAL;
bdd90d5e
JB		 4633 /* but don't bother the driver with it */
4634 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4635
d582cffb
JB		 4636 /* allow authenticated/associated only if driver handles it */
4637 if (!(rdev->wiphy.features &
4638 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 4639 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 4640 return -EINVAL;
4641
bda95eb1
JB		 4642 /* Older userspace, or userspace wanting to be compatible with
4643 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
4644 * and assoc flags in the mask, but assumes the station will be
4645 * added as associated anyway since this was the required driver
4646 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
4647 * introduced.
4648 * In order to not bother drivers with this quirk in the API
4649 * set the flags in both the mask and set for new stations in
4650 * this case.
4651 */
4652 if (!(params.sta_flags_mask & auth_assoc)) {
4653 params.sta_flags_mask |= auth_assoc;
4654 params.sta_flags_set |= auth_assoc;
4655 }
4656
bdd90d5e
JB		 4657 /* must be last in here for error handling */
4658 params.vlan = get_vlan(info, rdev);
4659 if (IS_ERR(params.vlan))
4660 return PTR_ERR(params.vlan);
4661 break;
4662 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4663 /* ignore uAPSD data */
4664 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4665
d582cffb
JB		 4666 /* associated is disallowed */
4667 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4668 return -EINVAL;
bdd90d5e 4669 /* TDLS peers cannot be added */
3d124ea2
JM		 4670 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4671 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4672 return -EINVAL;
4673 break;
4674 case NL80211_IFTYPE_STATION:
93d08f0b 4675 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4676 /* ignore uAPSD data */
4677 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4678
77ee7c89
JB		 4679 /* these are disallowed */
4680 if (params.sta_flags_mask &
4681 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4682 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4683 return -EINVAL;
bdd90d5e
JB		 4684 /* Only TDLS peers can be added */
4685 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4686 return -EINVAL;
4687 /* Can only add if TDLS ... */
4688 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4689 return -EOPNOTSUPP;
4690 /* ... with external setup is supported */
4691 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4692 return -EOPNOTSUPP;
77ee7c89
JB		 4693 /*
4694 * Older wpa_supplicant versions always mark the TDLS peer
4695 * as authorized, but it shouldn't yet be.
4696 */
4697 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4698 break;
4699 default:
4700 return -EOPNOTSUPP;
c75786c9
EP		 4701 }
4702
bdd90d5e 4703 /* be aware of params.vlan when changing code here */
5727ef1b 4704
e35e4d28 4705 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4706
5727ef1b
JB		 4707 if (params.vlan)
4708 dev_put(params.vlan);
5727ef1b
JB		 4709 return err;
4710}
4711
4712static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4713{
4c476991
JB		 4714 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4715 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4716 struct station_del_parameters params;
4717
4718 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4719
4720 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4721 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4722
e80cf853 4723 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4724 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4725 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4726 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4727 return -EINVAL;
5727ef1b 4728
4c476991
JB		 4729 if (!rdev->ops->del_station)
4730 return -EOPNOTSUPP;
3b85875a 4731
98856866
JM		 4732 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4733 params.subtype =
4734 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4735 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4736 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4737 return -EINVAL;
4738 } else {
4739 /* Default to Deauthentication frame */
4740 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4741 }
4742
4743 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4744 params.reason_code =
4745 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4746 if (params.reason_code == 0)
4747 return -EINVAL; /* 0 is reserved */
4748 } else {
4749 /* Default to reason code 2 */
4750 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4751 }
4752
89c771e5 4753 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4754}
4755
15e47304 4756static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4757 int flags, struct net_device *dev,
4758 u8 *dst, u8 *next_hop,
4759 struct mpath_info *pinfo)
4760{
4761 void *hdr;
4762 struct nlattr *pinfoattr;
4763
1ef4c850 4764 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4765 if (!hdr)
4766 return -1;
4767
9360ffd1
DM		 4768 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4769 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4770 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4771 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4772 goto nla_put_failure;
f5ea9120 4773
2ec600d6
LCC		 4774 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4775 if (!pinfoattr)
4776 goto nla_put_failure;
9360ffd1
DM		 4777 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4778 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4779 pinfo->frame_qlen))
4780 goto nla_put_failure;
4781 if (((pinfo->filled & MPATH_INFO_SN) &&
4782 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4783 ((pinfo->filled & MPATH_INFO_METRIC) &&
4784 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4785 pinfo->metric)) ||
4786 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4787 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4788 pinfo->exptime)) ||
4789 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4790 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4791 pinfo->flags)) ||
4792 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4793 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4794 pinfo->discovery_timeout)) ||
4795 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4796 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4797 pinfo->discovery_retries)))
4798 goto nla_put_failure;
2ec600d6
LCC		 4799
4800 nla_nest_end(msg, pinfoattr);
4801
053c095a
JB		 4802 genlmsg_end(msg, hdr);
4803 return 0;
2ec600d6
LCC		 4804
4805 nla_put_failure:
bc3ed28c
TG		 4806 genlmsg_cancel(msg, hdr);
4807 return -EMSGSIZE;
2ec600d6
LCC		 4808}
4809
4810static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4811 struct netlink_callback *cb)
2ec600d6 4812{
2ec600d6 4813 struct mpath_info pinfo;
1b8ec87a 4814 struct cfg80211_registered_device *rdev;
97990a06 4815 struct wireless_dev *wdev;
2ec600d6
LCC		 4816 u8 dst[ETH_ALEN];
4817 u8 next_hop[ETH_ALEN];
97990a06 4818 int path_idx = cb->args[2];
2ec600d6 4819 int err;
2ec600d6 4820
1b8ec87a 4821 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4822 if (err)
4823 return err;
bba95fef 4824
1b8ec87a 4825 if (!rdev->ops->dump_mpath) {
eec60b03 4826 err = -EOPNOTSUPP;
bba95fef
JB		 4827 goto out_err;
4828 }
4829
97990a06 4830 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4831 err = -EOPNOTSUPP;
0448b5fc 4832 goto out_err;
eec60b03
JM		 4833 }
4834
bba95fef 4835 while (1) {
1b8ec87a 4836 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4837 next_hop, &pinfo);
bba95fef 4838 if (err == -ENOENT)
2ec600d6 4839 break;
bba95fef 4840 if (err)
3b85875a 4841 goto out_err;
2ec600d6 4842
15e47304 4843 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4844 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4845 wdev->netdev, dst, next_hop,
bba95fef
JB		 4846 &pinfo) < 0)
4847 goto out;
2ec600d6 4848
bba95fef 4849 path_idx++;
2ec600d6 4850 }
2ec600d6 4851
bba95fef 4852 out:
97990a06 4853 cb->args[2] = path_idx;
bba95fef 4854 err = skb->len;
bba95fef 4855 out_err:
1b8ec87a 4856 nl80211_finish_wdev_dump(rdev);
bba95fef 4857 return err;
2ec600d6
LCC		 4858}
4859
4860static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4861{
4c476991 4862 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4863 int err;
4c476991 4864 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4865 struct mpath_info pinfo;
4866 struct sk_buff *msg;
4867 u8 *dst = NULL;
4868 u8 next_hop[ETH_ALEN];
4869
4870 memset(&pinfo, 0, sizeof(pinfo));
4871
4872 if (!info->attrs[NL80211_ATTR_MAC])
4873 return -EINVAL;
4874
4875 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4876
4c476991
JB		 4877 if (!rdev->ops->get_mpath)
4878 return -EOPNOTSUPP;
2ec600d6 4879
4c476991
JB		 4880 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4881 return -EOPNOTSUPP;
eec60b03 4882
e35e4d28 4883 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4884 if (err)
4c476991 4885 return err;
2ec600d6 4886
fd2120ca 4887 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4888 if (!msg)
4c476991 4889 return -ENOMEM;
2ec600d6 4890
15e47304 4891 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4892 dev, dst, next_hop, &pinfo) < 0) {
4893 nlmsg_free(msg);
4894 return -ENOBUFS;
4895 }
3b85875a 4896
4c476991 4897 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4898}
4899
4900static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4901{
4c476991
JB		 4902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4903 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4904 u8 *dst = NULL;
4905 u8 *next_hop = NULL;
4906
4907 if (!info->attrs[NL80211_ATTR_MAC])
4908 return -EINVAL;
4909
4910 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4911 return -EINVAL;
4912
4913 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4914 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4915
4c476991
JB		 4916 if (!rdev->ops->change_mpath)
4917 return -EOPNOTSUPP;
35a8efe1 4918
4c476991
JB		 4919 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4920 return -EOPNOTSUPP;
2ec600d6 4921
e35e4d28 4922 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4923}
4c476991 4924
2ec600d6
LCC		 4925static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4926{
4c476991
JB		 4927 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4928 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4929 u8 *dst = NULL;
4930 u8 *next_hop = NULL;
4931
4932 if (!info->attrs[NL80211_ATTR_MAC])
4933 return -EINVAL;
4934
4935 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4936 return -EINVAL;
4937
4938 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4939 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4940
4c476991
JB		 4941 if (!rdev->ops->add_mpath)
4942 return -EOPNOTSUPP;
35a8efe1 4943
4c476991
JB		 4944 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4945 return -EOPNOTSUPP;
2ec600d6 4946
e35e4d28 4947 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4948}
4949
4950static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4951{
4c476991
JB		 4952 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4953 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4954 u8 *dst = NULL;
4955
4956 if (info->attrs[NL80211_ATTR_MAC])
4957 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4958
4c476991
JB		 4959 if (!rdev->ops->del_mpath)
4960 return -EOPNOTSUPP;
3b85875a 4961
e35e4d28 4962 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4963}
4964
66be7d2b
HR		 4965static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4966{
4967 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4968 int err;
4969 struct net_device *dev = info->user_ptr[1];
4970 struct mpath_info pinfo;
4971 struct sk_buff *msg;
4972 u8 *dst = NULL;
4973 u8 mpp[ETH_ALEN];
4974
4975 memset(&pinfo, 0, sizeof(pinfo));
4976
4977 if (!info->attrs[NL80211_ATTR_MAC])
4978 return -EINVAL;
4979
4980 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4981
4982 if (!rdev->ops->get_mpp)
4983 return -EOPNOTSUPP;
4984
4985 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4986 return -EOPNOTSUPP;
4987
4988 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4989 if (err)
4990 return err;
4991
4992 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4993 if (!msg)
4994 return -ENOMEM;
4995
4996 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4997 dev, dst, mpp, &pinfo) < 0) {
4998 nlmsg_free(msg);
4999 return -ENOBUFS;
5000 }
5001
5002 return genlmsg_reply(msg, info);
5003}
5004
5005static int nl80211_dump_mpp(struct sk_buff *skb,
5006 struct netlink_callback *cb)
5007{
5008 struct mpath_info pinfo;
5009 struct cfg80211_registered_device *rdev;
5010 struct wireless_dev *wdev;
5011 u8 dst[ETH_ALEN];
5012 u8 mpp[ETH_ALEN];
5013 int path_idx = cb->args[2];
5014 int err;
5015
5016 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5017 if (err)
5018 return err;
5019
5020 if (!rdev->ops->dump_mpp) {
5021 err = -EOPNOTSUPP;
5022 goto out_err;
5023 }
5024
5025 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5026 err = -EOPNOTSUPP;
5027 goto out_err;
5028 }
5029
5030 while (1) {
5031 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5032 mpp, &pinfo);
5033 if (err == -ENOENT)
5034 break;
5035 if (err)
5036 goto out_err;
5037
5038 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5039 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5040 wdev->netdev, dst, mpp,
5041 &pinfo) < 0)
5042 goto out;
5043
5044 path_idx++;
5045 }
5046
5047 out:
5048 cb->args[2] = path_idx;
5049 err = skb->len;
5050 out_err:
5051 nl80211_finish_wdev_dump(rdev);
5052 return err;
5053}
5054
9f1ba906
JM		 5055static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5056{
4c476991
JB		 5057 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5058 struct net_device *dev = info->user_ptr[1];
c56589ed 5059 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 5060 struct bss_parameters params;
c56589ed 5061 int err;
9f1ba906
JM		 5062
5063 memset(&params, 0, sizeof(params));
5064 /* default to not changing parameters */
5065 params.use_cts_prot = -1;
5066 params.use_short_preamble = -1;
5067 params.use_short_slot_time = -1;
fd8aaaf3 5068 params.ap_isolate = -1;
50b12f59 5069 params.ht_opmode = -1;
53cabad7
JB		 5070 params.p2p_ctwindow = -1;
5071 params.p2p_opp_ps = -1;
9f1ba906
JM		 5072
5073 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5074 params.use_cts_prot =
5075 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5076 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5077 params.use_short_preamble =
5078 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5079 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5080 params.use_short_slot_time =
5081 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 5082 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5083 params.basic_rates =
5084 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5085 params.basic_rates_len =
5086 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5087 }
fd8aaaf3
FF		 5088 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5089 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 5090 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5091 params.ht_opmode =
5092 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 5093
53cabad7
JB		 5094 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5095 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5096 return -EINVAL;
5097 params.p2p_ctwindow =
5098 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5099 if (params.p2p_ctwindow < 0)
5100 return -EINVAL;
5101 if (params.p2p_ctwindow != 0 &&
5102 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5103 return -EINVAL;
5104 }
5105
5106 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5107 u8 tmp;
5108
5109 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5110 return -EINVAL;
5111 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5112 if (tmp > 1)
5113 return -EINVAL;
5114 params.p2p_opp_ps = tmp;
5115 if (params.p2p_opp_ps &&
5116 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5117 return -EINVAL;
5118 }
5119
4c476991
JB		 5120 if (!rdev->ops->change_bss)
5121 return -EOPNOTSUPP;
9f1ba906 5122
074ac8df 5123 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 5124 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5125 return -EOPNOTSUPP;
3b85875a 5126
c56589ed
SW		 5127 wdev_lock(wdev);
5128 err = rdev_change_bss(rdev, dev, &params);
5129 wdev_unlock(wdev);
5130
5131 return err;
9f1ba906
JM		 5132}
5133
b2e1b302
LR		 5134static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5135{
b2e1b302 5136 char *data = NULL;
05050753 5137 bool is_indoor;
57b5ce07 5138 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5139 u32 owner_nlportid;
5140
80778f18
LR		 5141 /*
5142 * You should only get this when cfg80211 hasn't yet initialized
5143 * completely when built-in to the kernel right between the time
5144 * window between nl80211_init() and regulatory_init(), if that is
5145 * even possible.
5146 */
458f4f9e 5147 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5148 return -EINPROGRESS;
80778f18 5149
57b5ce07
LR		 5150 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5151 user_reg_hint_type =
5152 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5153 else
5154 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5155
5156 switch (user_reg_hint_type) {
5157 case NL80211_USER_REG_HINT_USER:
5158 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5159 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5160 return -EINVAL;
5161
5162 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5163 return regulatory_hint_user(data, user_reg_hint_type);
5164 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5165 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5166 owner_nlportid = info->snd_portid;
5167 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5168 } else {
5169 owner_nlportid = 0;
5170 is_indoor = true;
5171 }
5172
5173 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5174 default:
5175 return -EINVAL;
5176 }
b2e1b302
LR		 5177}
5178
24bdd9f4 5179static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5180 struct genl_info *info)
93da9cc1 5181{
4c476991 5182 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5183 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5184 struct wireless_dev *wdev = dev->ieee80211_ptr;
5185 struct mesh_config cur_params;
5186 int err = 0;
93da9cc1 5187 void *hdr;
5188 struct nlattr *pinfoattr;
5189 struct sk_buff *msg;
5190
29cbe68c
JB		 5191 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5192 return -EOPNOTSUPP;
5193
24bdd9f4 5194 if (!rdev->ops->get_mesh_config)
4c476991 5195 return -EOPNOTSUPP;
f3f92586 5196
29cbe68c
JB		 5197 wdev_lock(wdev);
5198 /* If not connected, get default parameters */
5199 if (!wdev->mesh_id_len)
5200 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5201 else
e35e4d28 5202 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5203 wdev_unlock(wdev);
5204
93da9cc1 5205 if (err)
4c476991 5206 return err;
93da9cc1 5207
5208 /* Draw up a netlink message to send back */
fd2120ca 5209 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5210 if (!msg)
5211 return -ENOMEM;
15e47304 5212 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5213 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5214 if (!hdr)
efe1cf0c 5215 goto out;
24bdd9f4 5216 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5217 if (!pinfoattr)
5218 goto nla_put_failure;
9360ffd1
DM		 5219 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5220 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5221 cur_params.dot11MeshRetryTimeout) ||
5222 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5223 cur_params.dot11MeshConfirmTimeout) ||
5224 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5225 cur_params.dot11MeshHoldingTimeout) ||
5226 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5227 cur_params.dot11MeshMaxPeerLinks) ||
5228 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5229 cur_params.dot11MeshMaxRetries) ||
5230 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5231 cur_params.dot11MeshTTL) ||
5232 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5233 cur_params.element_ttl) ||
5234 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5235 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5236 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5237 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5238 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5239 cur_params.dot11MeshHWMPmaxPREQretries) ||
5240 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5241 cur_params.path_refresh_time) ||
5242 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5243 cur_params.min_discovery_timeout) ||
5244 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5245 cur_params.dot11MeshHWMPactivePathTimeout) ||
5246 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5247 cur_params.dot11MeshHWMPpreqMinInterval) ||
5248 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5249 cur_params.dot11MeshHWMPperrMinInterval) ||
5250 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5251 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5252 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5253 cur_params.dot11MeshHWMPRootMode) ||
5254 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5255 cur_params.dot11MeshHWMPRannInterval) ||
5256 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5257 cur_params.dot11MeshGateAnnouncementProtocol) ||
5258 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5259 cur_params.dot11MeshForwarding) ||
5260 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5261 cur_params.rssi_threshold) ||
5262 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5263 cur_params.ht_opmode) ||
5264 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5265 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5266 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5267 cur_params.dot11MeshHWMProotInterval) ||
5268 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5269 cur_params.dot11MeshHWMPconfirmationInterval) ||
5270 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5271 cur_params.power_mode) ||
5272 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5273 cur_params.dot11MeshAwakeWindowDuration) ||
5274 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5275 cur_params.plink_timeout))
9360ffd1 5276 goto nla_put_failure;
93da9cc1 5277 nla_nest_end(msg, pinfoattr);
5278 genlmsg_end(msg, hdr);
4c476991 5279 return genlmsg_reply(msg, info);
93da9cc1 5280
3b85875a 5281 nla_put_failure:
93da9cc1 5282 genlmsg_cancel(msg, hdr);
efe1cf0c 5283 out:
d080e275 5284 nlmsg_free(msg);
4c476991 5285 return -ENOBUFS;
93da9cc1 5286}
5287
b54452b0 5288static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5289 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5290 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5291 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5292 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5293 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5294 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5295 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5296 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5297 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5298 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5299 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5300 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5301 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5302 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5303 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5304 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5305 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5306 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5307 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5308 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5309 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5310 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5311 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5312 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5313 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5314 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5315 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5316 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5317};
5318
c80d545d
JC		 5319static const struct nla_policy
5320 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5321 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5322 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5323 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5324 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5325 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5326 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5327 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5328 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5329 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5330};
5331
f151d9db
AB		 5332static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5333{
5334 u8 val = nla_get_u8(nla);
5335 if (val < min || val > max)
5336 return -EINVAL;
5337 *out = val;
5338 return 0;
5339}
5340
5341static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5342{
5343 u8 val = nla_get_u8(nla);
5344 if (val < min || val > max)
5345 return -EINVAL;
5346 *out = val;
5347 return 0;
5348}
5349
5350static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5351{
5352 u16 val = nla_get_u16(nla);
5353 if (val < min || val > max)
5354 return -EINVAL;
5355 *out = val;
5356 return 0;
5357}
5358
5359static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5360{
5361 u32 val = nla_get_u32(nla);
5362 if (val < min || val > max)
5363 return -EINVAL;
5364 *out = val;
5365 return 0;
5366}
5367
5368static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5369{
5370 s32 val = nla_get_s32(nla);
5371 if (val < min || val > max)
5372 return -EINVAL;
5373 *out = val;
5374 return 0;
5375}
5376
24bdd9f4 5377static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5378 struct mesh_config *cfg,
5379 u32 *mask_out)
93da9cc1 5380{
93da9cc1 5381 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5382 u32 mask = 0;
93da9cc1 5383
ea54fba2
MP		 5384#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5385do { \
5386 if (tb[attr]) { \
f151d9db 5387 if (fn(tb[attr], min, max, &cfg->param)) \
ea54fba2 5388 return -EINVAL; \
ea54fba2
MP		 5389 mask |= (1 << (attr - 1)); \
5390 } \
5391} while (0)
bd90fdcc 5392
24bdd9f4 5393 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5394 return -EINVAL;
5395 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5396 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5397 nl80211_meshconf_params_policy))
93da9cc1 5398 return -EINVAL;
5399
93da9cc1 5400 /* This makes sure that there aren't more than 32 mesh config
5401 * parameters (otherwise our bitfield scheme would not work.) */
5402 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5403
5404 /* Fill in the params struct */
ea54fba2 5405 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea 5406 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
f151d9db 5407 nl80211_check_u16);
ea54fba2 5408 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea 5409 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
f151d9db 5410 nl80211_check_u16);
ea54fba2 5411 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea 5412 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
f151d9db 5413 nl80211_check_u16);
ea54fba2 5414 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea 5415 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
f151d9db 5416 nl80211_check_u16);
ea54fba2 5417 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea 5418 mask, NL80211_MESHCONF_MAX_RETRIES,
f151d9db 5419 nl80211_check_u8);
ea54fba2 5420 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
f151d9db 5421 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
ea54fba2 5422 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea 5423 mask, NL80211_MESHCONF_ELEMENT_TTL,
f151d9db 5424 nl80211_check_u8);
ea54fba2 5425 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea 5426 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
f151d9db 5427 nl80211_check_bool);
ea54fba2
MP		 5428 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5429 1, 255, mask,
a4f606ea 5430 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
f151d9db 5431 nl80211_check_u32);
ea54fba2 5432 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea 5433 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
f151d9db 5434 nl80211_check_u8);
ea54fba2 5435 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea 5436 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
f151d9db 5437 nl80211_check_u32);
ea54fba2 5438 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea 5439 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
f151d9db 5440 nl80211_check_u16);
ea54fba2
MP		 5441 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5442 1, 65535, mask,
a4f606ea 5443 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
f151d9db 5444 nl80211_check_u32);
93da9cc1 5445 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5446 1, 65535, mask,
5447 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
f151d9db 5448 nl80211_check_u16);
dca7e943 5449 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5450 1, 65535, mask,
5451 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
f151d9db 5452 nl80211_check_u16);
93da9cc1 5453 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5454 dot11MeshHWMPnetDiameterTraversalTime,
5455 1, 65535, mask,
a4f606ea 5456 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
f151d9db 5457 nl80211_check_u16);
ea54fba2
MP		 5458 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5459 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
f151d9db 5460 nl80211_check_u8);
ea54fba2
MP		 5461 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5462 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
f151d9db 5463 nl80211_check_u16);
63c5723b 5464 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5465 dot11MeshGateAnnouncementProtocol, 0, 1,
5466 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
f151d9db 5467 nl80211_check_bool);
ea54fba2 5468 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea 5469 mask, NL80211_MESHCONF_FORWARDING,
f151d9db 5470 nl80211_check_bool);
83374fe9 5471 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5472 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
f151d9db 5473 nl80211_check_s32);
ea54fba2 5474 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5475 mask, NL80211_MESHCONF_HT_OPMODE,
f151d9db 5476 nl80211_check_u16);
ac1073a6 5477 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5478 1, 65535, mask,
ac1073a6 5479 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
f151d9db 5480 nl80211_check_u32);
ea54fba2 5481 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5482 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
f151d9db 5483 nl80211_check_u16);
728b19e5 5484 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5485 dot11MeshHWMPconfirmationInterval,
5486 1, 65535, mask,
728b19e5 5487 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
f151d9db 5488 nl80211_check_u16);
3b1c5a53
MP		 5489 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5490 NL80211_MESH_POWER_ACTIVE,
5491 NL80211_MESH_POWER_MAX,
5492 mask, NL80211_MESHCONF_POWER_MODE,
f151d9db 5493 nl80211_check_u32);
3b1c5a53
MP		 5494 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5495 0, 65535, mask,
f151d9db 5496 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
31f909a2 5497 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538 5498 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
f151d9db 5499 nl80211_check_u32);
bd90fdcc
JB		 5500 if (mask_out)
5501 *mask_out = mask;
c80d545d 5502
bd90fdcc
JB		 5503 return 0;
5504
5505#undef FILL_IN_MESH_PARAM_IF_SET
5506}
5507
c80d545d
JC		 5508static int nl80211_parse_mesh_setup(struct genl_info *info,
5509 struct mesh_setup *setup)
5510{
bb2798d4 5511 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5512 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5513
5514 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5515 return -EINVAL;
5516 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5517 info->attrs[NL80211_ATTR_MESH_SETUP],
5518 nl80211_mesh_setup_params_policy))
5519 return -EINVAL;
5520
d299a1f2
JC		 5521 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5522 setup->sync_method =
5523 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5524 IEEE80211_SYNC_METHOD_VENDOR :
5525 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5526
c80d545d
JC		 5527 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5528 setup->path_sel_proto =
5529 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5530 IEEE80211_PATH_PROTOCOL_VENDOR :
5531 IEEE80211_PATH_PROTOCOL_HWMP;
5532
5533 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5534 setup->path_metric =
5535 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5536 IEEE80211_PATH_METRIC_VENDOR :
5537 IEEE80211_PATH_METRIC_AIRTIME;
5538
581a8b0f 5539 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5540 struct nlattr *ieattr =
581a8b0f 5541 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5542 if (!is_valid_ie_attr(ieattr))
5543 return -EINVAL;
581a8b0f
JC		 5544 setup->ie = nla_data(ieattr);
5545 setup->ie_len = nla_len(ieattr);
c80d545d 5546 }
bb2798d4
TP		 5547 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5548 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5549 return -EINVAL;
5550 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5551 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5552 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5553 if (setup->is_secure)
5554 setup->user_mpm = true;
c80d545d 5555
6e16d90b
CT		 5556 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5557 if (!setup->user_mpm)
5558 return -EINVAL;
5559 setup->auth_id =
5560 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5561 }
5562
c80d545d
JC		 5563 return 0;
5564}
5565
24bdd9f4 5566static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5567 struct genl_info *info)
bd90fdcc
JB		 5568{
5569 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5570 struct net_device *dev = info->user_ptr[1];
29cbe68c 5571 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5572 struct mesh_config cfg;
5573 u32 mask;
5574 int err;
5575
29cbe68c
JB		 5576 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5577 return -EOPNOTSUPP;
5578
24bdd9f4 5579 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5580 return -EOPNOTSUPP;
5581
24bdd9f4 5582 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5583 if (err)
5584 return err;
5585
29cbe68c
JB		 5586 wdev_lock(wdev);
5587 if (!wdev->mesh_id_len)
5588 err = -ENOLINK;
5589
5590 if (!err)
e35e4d28 5591 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5592
5593 wdev_unlock(wdev);
5594
5595 return err;
93da9cc1 5596}
5597
ad30ca2c
AN		 5598static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5599 struct sk_buff *msg)
f130347c 5600{
f130347c
LR		 5601 struct nlattr *nl_reg_rules;
5602 unsigned int i;
f130347c 5603
458f4f9e
JB		 5604 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5605 (regdom->dfs_region &&
5606 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5607 goto nla_put_failure;
458f4f9e 5608
f130347c
LR		 5609 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5610 if (!nl_reg_rules)
ad30ca2c 5611 goto nla_put_failure;
f130347c 5612
458f4f9e 5613 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5614 struct nlattr *nl_reg_rule;
5615 const struct ieee80211_reg_rule *reg_rule;
5616 const struct ieee80211_freq_range *freq_range;
5617 const struct ieee80211_power_rule *power_rule;
97524820 5618 unsigned int max_bandwidth_khz;
f130347c 5619
458f4f9e 5620 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5621 freq_range = &reg_rule->freq_range;
5622 power_rule = &reg_rule->power_rule;
5623
5624 nl_reg_rule = nla_nest_start(msg, i);
5625 if (!nl_reg_rule)
ad30ca2c 5626 goto nla_put_failure;
f130347c 5627
97524820
JD		 5628 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5629 if (!max_bandwidth_khz)
5630 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5631 reg_rule);
5632
9360ffd1
DM		 5633 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5634 reg_rule->flags) ||
5635 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5636 freq_range->start_freq_khz) ||
5637 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5638 freq_range->end_freq_khz) ||
5639 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5640 max_bandwidth_khz) ||
9360ffd1
DM		 5641 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5642 power_rule->max_antenna_gain) ||
5643 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5644 power_rule->max_eirp) ||
5645 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5646 reg_rule->dfs_cac_ms))
ad30ca2c 5647 goto nla_put_failure;
f130347c
LR		 5648
5649 nla_nest_end(msg, nl_reg_rule);
5650 }
5651
5652 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5653 return 0;
5654
5655nla_put_failure:
5656 return -EMSGSIZE;
5657}
5658
5659static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5660{
5661 const struct ieee80211_regdomain *regdom = NULL;
5662 struct cfg80211_registered_device *rdev;
5663 struct wiphy *wiphy = NULL;
5664 struct sk_buff *msg;
5665 void *hdr;
5666
5667 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5668 if (!msg)
5669 return -ENOBUFS;
5670
5671 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5672 NL80211_CMD_GET_REG);
5673 if (!hdr)
5674 goto put_failure;
5675
5676 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5677 bool self_managed;
5678
ad30ca2c
AN		 5679 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5680 if (IS_ERR(rdev)) {
5681 nlmsg_free(msg);
5682 return PTR_ERR(rdev);
5683 }
5684
5685 wiphy = &rdev->wiphy;
1bdd716c
AN		 5686 self_managed = wiphy->regulatory_flags &
5687 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5688 regdom = get_wiphy_regdom(wiphy);
5689
1bdd716c
AN		 5690 /* a self-managed-reg device must have a private regdom */
5691 if (WARN_ON(!regdom && self_managed)) {
5692 nlmsg_free(msg);
5693 return -EINVAL;
5694 }
5695
ad30ca2c
AN		 5696 if (regdom &&
5697 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5698 goto nla_put_failure;
5699 }
5700
5701 if (!wiphy && reg_last_request_cell_base() &&
5702 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5703 NL80211_USER_REG_HINT_CELL_BASE))
5704 goto nla_put_failure;
5705
5706 rcu_read_lock();
5707
5708 if (!regdom)
5709 regdom = rcu_dereference(cfg80211_regdomain);
5710
5711 if (nl80211_put_regdom(regdom, msg))
5712 goto nla_put_failure_rcu;
5713
5714 rcu_read_unlock();
f130347c
LR		 5715
5716 genlmsg_end(msg, hdr);
5fe231e8 5717 return genlmsg_reply(msg, info);
f130347c 5718
458f4f9e
JB		 5719nla_put_failure_rcu:
5720 rcu_read_unlock();
f130347c
LR		 5721nla_put_failure:
5722 genlmsg_cancel(msg, hdr);
efe1cf0c 5723put_failure:
d080e275 5724 nlmsg_free(msg);
5fe231e8 5725 return -EMSGSIZE;
f130347c
LR		 5726}
5727
ad30ca2c
AN		 5728static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5729 u32 seq, int flags, struct wiphy *wiphy,
5730 const struct ieee80211_regdomain *regdom)
5731{
5732 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5733 NL80211_CMD_GET_REG);
5734
5735 if (!hdr)
5736 return -1;
5737
5738 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5739
5740 if (nl80211_put_regdom(regdom, msg))
5741 goto nla_put_failure;
5742
5743 if (!wiphy && reg_last_request_cell_base() &&
5744 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5745 NL80211_USER_REG_HINT_CELL_BASE))
5746 goto nla_put_failure;
5747
5748 if (wiphy &&
5749 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5750 goto nla_put_failure;
5751
1bdd716c
AN		 5752 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5753 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5754 goto nla_put_failure;
5755
053c095a
JB		 5756 genlmsg_end(msg, hdr);
5757 return 0;
ad30ca2c
AN		 5758
5759nla_put_failure:
5760 genlmsg_cancel(msg, hdr);
5761 return -EMSGSIZE;
5762}
5763
5764static int nl80211_get_reg_dump(struct sk_buff *skb,
5765 struct netlink_callback *cb)
5766{
5767 const struct ieee80211_regdomain *regdom = NULL;
5768 struct cfg80211_registered_device *rdev;
5769 int err, reg_idx, start = cb->args[2];
5770
5771 rtnl_lock();
5772
5773 if (cfg80211_regdomain && start == 0) {
5774 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5775 NLM_F_MULTI, NULL,
5776 rtnl_dereference(cfg80211_regdomain));
5777 if (err < 0)
5778 goto out_err;
5779 }
5780
5781 /* the global regdom is idx 0 */
5782 reg_idx = 1;
5783 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5784 regdom = get_wiphy_regdom(&rdev->wiphy);
5785 if (!regdom)
5786 continue;
5787
5788 if (++reg_idx <= start)
5789 continue;
5790
5791 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5792 NLM_F_MULTI, &rdev->wiphy, regdom);
5793 if (err < 0) {
5794 reg_idx--;
5795 break;
5796 }
5797 }
5798
5799 cb->args[2] = reg_idx;
5800 err = skb->len;
5801out_err:
5802 rtnl_unlock();
5803 return err;
5804}
5805
b6863036
JB		 5806#ifdef CONFIG_CFG80211_CRDA_SUPPORT
5807static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
5808 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5809 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5810 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5811 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5812 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5813 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5814 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
5815};
5816
5817static int parse_reg_rule(struct nlattr *tb[],
5818 struct ieee80211_reg_rule *reg_rule)
5819{
5820 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
5821 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
5822
5823 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
5824 return -EINVAL;
5825 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
5826 return -EINVAL;
5827 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
5828 return -EINVAL;
5829 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
5830 return -EINVAL;
5831 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
5832 return -EINVAL;
5833
5834 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
5835
5836 freq_range->start_freq_khz =
5837 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
5838 freq_range->end_freq_khz =
5839 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
5840 freq_range->max_bandwidth_khz =
5841 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
5842
5843 power_rule->max_eirp =
5844 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
5845
5846 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
5847 power_rule->max_antenna_gain =
5848 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
5849
5850 if (tb[NL80211_ATTR_DFS_CAC_TIME])
5851 reg_rule->dfs_cac_ms =
5852 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
5853
5854 return 0;
5855}
5856
b2e1b302
LR		 5857static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5858{
5859 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5860 struct nlattr *nl_reg_rule;
ea372c54
JB		 5861 char *alpha2;
5862 int rem_reg_rules, r;
b2e1b302 5863 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5864 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5865 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5866
5867 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5868 return -EINVAL;
5869
5870 if (!info->attrs[NL80211_ATTR_REG_RULES])
5871 return -EINVAL;
5872
5873 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5874
8b60b078
LR		 5875 if (info->attrs[NL80211_ATTR_DFS_REGION])
5876 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5877
b2e1b302 5878 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5879 rem_reg_rules) {
b2e1b302
LR		 5880 num_rules++;
5881 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5882 return -EINVAL;
b2e1b302
LR		 5883 }
5884
e438768f
LR		 5885 if (!reg_is_valid_request(alpha2))
5886 return -EINVAL;
5887
b2e1b302 5888 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5889 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5890
5891 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5892 if (!rd)
5893 return -ENOMEM;
b2e1b302
LR		 5894
5895 rd->n_reg_rules = num_rules;
5896 rd->alpha2[0] = alpha2[0];
5897 rd->alpha2[1] = alpha2[1];
5898
8b60b078
LR		 5899 /*
5900 * Disable DFS master mode if the DFS region was
5901 * not supported or known on this kernel.
5902 */
5903 if (reg_supported_dfs_region(dfs_region))
5904 rd->dfs_region = dfs_region;
5905
b2e1b302 5906 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5907 rem_reg_rules) {
ae811e21
JB		 5908 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5909 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5910 reg_rule_policy);
5911 if (r)
5912 goto bad_reg;
b2e1b302
LR		 5913 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5914 if (r)
5915 goto bad_reg;
5916
5917 rule_idx++;
5918
d0e18f83
LR		 5919 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5920 r = -EINVAL;
b2e1b302 5921 goto bad_reg;
d0e18f83 5922 }
b2e1b302
LR		 5923 }
5924
06627990
JB		 5925 /* set_regdom takes ownership of rd */
5926 return set_regdom(rd, REGD_SOURCE_CRDA);
d2372b31 5927 bad_reg:
b2e1b302 5928 kfree(rd);
d0e18f83 5929 return r;
b2e1b302 5930}
b6863036 5931#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 5932
83f5e2cf
JB		 5933static int validate_scan_freqs(struct nlattr *freqs)
5934{
5935 struct nlattr *attr1, *attr2;
5936 int n_channels = 0, tmp1, tmp2;
5937
5938 nla_for_each_nested(attr1, freqs, tmp1) {
5939 n_channels++;
5940 /*
5941 * Some hardware has a limited channel list for
5942 * scanning, and it is pretty much nonsensical
5943 * to scan for a channel twice, so disallow that
5944 * and don't require drivers to check that the
5945 * channel list they get isn't longer than what
5946 * they can scan, as long as they can scan all
5947 * the channels they registered at once.
5948 */
5949 nla_for_each_nested(attr2, freqs, tmp2)
5950 if (attr1 != attr2 &&
5951 nla_get_u32(attr1) == nla_get_u32(attr2))
5952 return 0;
5953 }
5954
5955 return n_channels;
5956}
5957
57fbcce3 5958static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
38de03d2 5959{
57fbcce3 5960 return b < NUM_NL80211_BANDS && wiphy->bands[b];
38de03d2
AS		 5961}
5962
5963static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
5964 struct cfg80211_bss_selection *bss_select)
5965{
5966 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
5967 struct nlattr *nest;
5968 int err;
5969 bool found = false;
5970 int i;
5971
5972 /* only process one nested attribute */
5973 nest = nla_data(nla);
5974 if (!nla_ok(nest, nla_len(nest)))
5975 return -EINVAL;
5976
5977 err = nla_parse(attr, NL80211_BSS_SELECT_ATTR_MAX, nla_data(nest),
5978 nla_len(nest), nl80211_bss_select_policy);
5979 if (err)
5980 return err;
5981
5982 /* only one attribute may be given */
5983 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
5984 if (attr[i]) {
5985 if (found)
5986 return -EINVAL;
5987 found = true;
5988 }
5989 }
5990
5991 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
5992
5993 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
5994 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
5995
5996 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
5997 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
5998 bss_select->param.band_pref =
5999 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6000 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6001 return -EINVAL;
6002 }
6003
6004 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6005 struct nl80211_bss_select_rssi_adjust *adj_param;
6006
6007 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6008 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6009 bss_select->param.adjust.band = adj_param->band;
6010 bss_select->param.adjust.delta = adj_param->delta;
6011 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6012 return -EINVAL;
6013 }
6014
6015 /* user-space did not provide behaviour attribute */
6016 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6017 return -EINVAL;
6018
6019 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6020 return -EINVAL;
6021
6022 return 0;
6023}
6024
ad2b26ab
JB		 6025static int nl80211_parse_random_mac(struct nlattr **attrs,
6026 u8 *mac_addr, u8 *mac_addr_mask)
6027{
6028 int i;
6029
6030 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 6031 eth_zero_addr(mac_addr);
6032 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 6033 mac_addr[0] = 0x2;
6034 mac_addr_mask[0] = 0x3;
6035
6036 return 0;
6037 }
6038
6039 /* need both or none */
6040 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6041 return -EINVAL;
6042
6043 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6044 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6045
6046 /* don't allow or configure an mcast address */
6047 if (!is_multicast_ether_addr(mac_addr_mask) ||
6048 is_multicast_ether_addr(mac_addr))
6049 return -EINVAL;
6050
6051 /*
6052 * allow users to pass a MAC address that has bits set outside
6053 * of the mask, but don't bother drivers with having to deal
6054 * with such bits
6055 */
6056 for (i = 0; i < ETH_ALEN; i++)
6057 mac_addr[i] &= mac_addr_mask[i];
6058
6059 return 0;
6060}
6061
2a519311
JB		 6062static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6063{
4c476991 6064 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 6065 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 6066 struct cfg80211_scan_request *request;
2a519311
JB		 6067 struct nlattr *attr;
6068 struct wiphy *wiphy;
83f5e2cf 6069 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 6070 size_t ie_len;
2a519311 6071
f4a11bb0
JB		 6072 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6073 return -EINVAL;
6074
79c97e97 6075 wiphy = &rdev->wiphy;
2a519311 6076
4c476991
JB		 6077 if (!rdev->ops->scan)
6078 return -EOPNOTSUPP;
2a519311 6079
f9d15d16 6080 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 6081 err = -EBUSY;
6082 goto unlock;
6083 }
2a519311
JB		 6084
6085 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 6086 n_channels = validate_scan_freqs(
6087 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 6088 if (!n_channels) {
6089 err = -EINVAL;
6090 goto unlock;
6091 }
2a519311 6092 } else {
bdfbec2d 6093 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 6094 }
6095
6096 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6097 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6098 n_ssids++;
6099
f9f47529
JB		 6100 if (n_ssids > wiphy->max_scan_ssids) {
6101 err = -EINVAL;
6102 goto unlock;
6103 }
2a519311 6104
70692ad2
JM		 6105 if (info->attrs[NL80211_ATTR_IE])
6106 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6107 else
6108 ie_len = 0;
6109
f9f47529
JB		 6110 if (ie_len > wiphy->max_scan_ie_len) {
6111 err = -EINVAL;
6112 goto unlock;
6113 }
18a83659 6114
2a519311 6115 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 6116 + sizeof(*request->ssids) * n_ssids
6117 + sizeof(*request->channels) * n_channels
70692ad2 6118 + ie_len, GFP_KERNEL);
f9f47529
JB		 6119 if (!request) {
6120 err = -ENOMEM;
6121 goto unlock;
6122 }
2a519311 6123
2a519311 6124 if (n_ssids)
5ba63533 6125 request->ssids = (void *)&request->channels[n_channels];
2a519311 6126 request->n_ssids = n_ssids;
70692ad2 6127 if (ie_len) {
13874e4b 6128 if (n_ssids)
70692ad2
JM		 6129 request->ie = (void *)(request->ssids + n_ssids);
6130 else
6131 request->ie = (void *)(request->channels + n_channels);
6132 }
2a519311 6133
584991dc 6134 i = 0;
2a519311
JB		 6135 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6136 /* user specified, bail out if channel not found */
2a519311 6137 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 6138 struct ieee80211_channel *chan;
6139
6140 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6141
6142 if (!chan) {
2a519311
JB		 6143 err = -EINVAL;
6144 goto out_free;
6145 }
584991dc
JB		 6146
6147 /* ignore disabled channels */
6148 if (chan->flags & IEEE80211_CHAN_DISABLED)
6149 continue;
6150
6151 request->channels[i] = chan;
2a519311
JB		 6152 i++;
6153 }
6154 } else {
57fbcce3 6155 enum nl80211_band band;
34850ab2 6156
2a519311 6157 /* all channels */
57fbcce3 6158 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2a519311 6159 int j;
7a087e74 6160
2a519311
JB		 6161 if (!wiphy->bands[band])
6162 continue;
6163 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 6164 struct ieee80211_channel *chan;
6165
6166 chan = &wiphy->bands[band]->channels[j];
6167
6168 if (chan->flags & IEEE80211_CHAN_DISABLED)
6169 continue;
6170
6171 request->channels[i] = chan;
2a519311
JB		 6172 i++;
6173 }
6174 }
6175 }
6176
584991dc
JB		 6177 if (!i) {
6178 err = -EINVAL;
6179 goto out_free;
6180 }
6181
6182 request->n_channels = i;
6183
2a519311 6184 i = 0;
13874e4b 6185 if (n_ssids) {
2a519311 6186 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 6187 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 6188 err = -EINVAL;
6189 goto out_free;
6190 }
57a27e1d 6191 request->ssids[i].ssid_len = nla_len(attr);
2a519311 6192 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 6193 i++;
6194 }
6195 }
6196
70692ad2
JM		 6197 if (info->attrs[NL80211_ATTR_IE]) {
6198 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 6199 memcpy((void *)request->ie,
6200 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 6201 request->ie_len);
6202 }
6203
57fbcce3 6204 for (i = 0; i < NUM_NL80211_BANDS; i++)
a401d2bb
JB		 6205 if (wiphy->bands[i])
6206 request->rates[i] =
6207 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 6208
6209 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6210 nla_for_each_nested(attr,
6211 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6212 tmp) {
57fbcce3 6213 enum nl80211_band band = nla_type(attr);
34850ab2 6214
57fbcce3 6215 if (band < 0 || band >= NUM_NL80211_BANDS) {
34850ab2
JB		 6216 err = -EINVAL;
6217 goto out_free;
6218 }
1b09cd82
FF		 6219
6220 if (!wiphy->bands[band])
6221 continue;
6222
34850ab2
JB		 6223 err = ieee80211_get_ratemask(wiphy->bands[band],
6224 nla_data(attr),
6225 nla_len(attr),
6226 &request->rates[band]);
6227 if (err)
6228 goto out_free;
6229 }
6230 }
6231
1d76250b
AS		 6232 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6233 if (!wiphy_ext_feature_isset(wiphy,
6234 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6235 err = -EOPNOTSUPP;
6236 goto out_free;
6237 }
6238
6239 request->duration =
6240 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6241 request->duration_mandatory =
6242 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6243 }
6244
46856bbf 6245 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 6246 request->flags = nla_get_u32(
6247 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6248 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6249 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6250 err = -EOPNOTSUPP;
6251 goto out_free;
6252 }
ad2b26ab
JB		 6253
6254 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6255 if (!(wiphy->features &
6256 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6257 err = -EOPNOTSUPP;
6258 goto out_free;
6259 }
6260
6261 if (wdev->current_bss) {
6262 err = -EOPNOTSUPP;
6263 goto out_free;
6264 }
6265
6266 err = nl80211_parse_random_mac(info->attrs,
6267 request->mac_addr,
6268 request->mac_addr_mask);
6269 if (err)
6270 goto out_free;
6271 }
46856bbf 6272 }
ed473771 6273
e9f935e3
RM		 6274 request->no_cck =
6275 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6276
818965d3
JM		 6277 if (info->attrs[NL80211_ATTR_MAC])
6278 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6279 ETH_ALEN);
6280 else
6281 eth_broadcast_addr(request->bssid);
6282
fd014284 6283 request->wdev = wdev;
79c97e97 6284 request->wiphy = &rdev->wiphy;
15d6030b 6285 request->scan_start = jiffies;
2a519311 6286
79c97e97 6287 rdev->scan_req = request;
e35e4d28 6288 err = rdev_scan(rdev, request);
2a519311 6289
463d0183 6290 if (!err) {
fd014284
JB		 6291 nl80211_send_scan_start(rdev, wdev);
6292 if (wdev->netdev)
6293 dev_hold(wdev->netdev);
4c476991 6294 } else {
2a519311 6295 out_free:
79c97e97 6296 rdev->scan_req = NULL;
2a519311
JB		 6297 kfree(request);
6298 }
3b85875a 6299
f9f47529 6300 unlock:
2a519311
JB		 6301 return err;
6302}
6303
91d3ab46
VK		 6304static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6305{
6306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6307 struct wireless_dev *wdev = info->user_ptr[1];
6308
6309 if (!rdev->ops->abort_scan)
6310 return -EOPNOTSUPP;
6311
6312 if (rdev->scan_msg)
6313 return 0;
6314
6315 if (!rdev->scan_req)
6316 return -ENOENT;
6317
6318 rdev_abort_scan(rdev, wdev);
6319 return 0;
6320}
6321
3b06d277
AS		 6322static int
6323nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6324 struct cfg80211_sched_scan_request *request,
6325 struct nlattr **attrs)
6326{
6327 int tmp, err, i = 0;
6328 struct nlattr *attr;
6329
6330 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6331 u32 interval;
6332
6333 /*
6334 * If scan plans are not specified,
6335 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6336 * case one scan plan will be set with the specified scan
6337 * interval and infinite number of iterations.
6338 */
6339 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6340 return -EINVAL;
6341
6342 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6343 if (!interval)
6344 return -EINVAL;
6345
6346 request->scan_plans[0].interval =
6347 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6348 if (!request->scan_plans[0].interval)
6349 return -EINVAL;
6350
6351 if (request->scan_plans[0].interval >
6352 wiphy->max_sched_scan_plan_interval)
6353 request->scan_plans[0].interval =
6354 wiphy->max_sched_scan_plan_interval;
6355
6356 return 0;
6357 }
6358
6359 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6360 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6361
6362 if (WARN_ON(i >= n_plans))
6363 return -EINVAL;
6364
6365 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6366 nla_data(attr), nla_len(attr),
6367 nl80211_plan_policy);
6368 if (err)
6369 return err;
6370
6371 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6372 return -EINVAL;
6373
6374 request->scan_plans[i].interval =
6375 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6376 if (!request->scan_plans[i].interval ||
6377 request->scan_plans[i].interval >
6378 wiphy->max_sched_scan_plan_interval)
6379 return -EINVAL;
6380
6381 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6382 request->scan_plans[i].iterations =
6383 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6384 if (!request->scan_plans[i].iterations ||
6385 (request->scan_plans[i].iterations >
6386 wiphy->max_sched_scan_plan_iterations))
6387 return -EINVAL;
6388 } else if (i < n_plans - 1) {
6389 /*
6390 * All scan plans but the last one must specify
6391 * a finite number of iterations
6392 */
6393 return -EINVAL;
6394 }
6395
6396 i++;
6397 }
6398
6399 /*
6400 * The last scan plan must not specify the number of
6401 * iterations, it is supposed to run infinitely
6402 */
6403 if (request->scan_plans[n_plans - 1].iterations)
6404 return -EINVAL;
6405
6406 return 0;
6407}
6408
256da02d 6409static struct cfg80211_sched_scan_request *
ad2b26ab 6410nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 6411 struct nlattr **attrs)
807f8a8c
LC		 6412{
6413 struct cfg80211_sched_scan_request *request;
807f8a8c 6414 struct nlattr *attr;
3b06d277 6415 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
57fbcce3 6416 enum nl80211_band band;
807f8a8c 6417 size_t ie_len;
a1f1c21c 6418 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 6419 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 6420
256da02d
LC		 6421 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6422 return ERR_PTR(-EINVAL);
807f8a8c 6423
256da02d 6424 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 6425 n_channels = validate_scan_freqs(
256da02d 6426 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6427 if (!n_channels)
256da02d 6428 return ERR_PTR(-EINVAL);
807f8a8c 6429 } else {
bdfbec2d 6430 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6431 }
6432
256da02d
LC		 6433 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6434 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6435 tmp)
6436 n_ssids++;
6437
93b6aa69 6438 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6439 return ERR_PTR(-EINVAL);
807f8a8c 6440
ea73cbce
JB		 6441 /*
6442 * First, count the number of 'real' matchsets. Due to an issue with
6443 * the old implementation, matchsets containing only the RSSI attribute
6444 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6445 * RSSI for all matchsets, rather than their own matchset for reporting
6446 * all APs with a strong RSSI. This is needed to be compatible with
6447 * older userspace that treated a matchset with only the RSSI as the
6448 * global RSSI for all other matchsets - if there are other matchsets.
6449 */
256da02d 6450 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6451 nla_for_each_nested(attr,
256da02d 6452 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6453 tmp) {
6454 struct nlattr *rssi;
6455
6456 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6457 nla_data(attr), nla_len(attr),
6458 nl80211_match_policy);
6459 if (err)
256da02d 6460 return ERR_PTR(err);
ea73cbce
JB		 6461 /* add other standalone attributes here */
6462 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6463 n_match_sets++;
6464 continue;
6465 }
6466 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6467 if (rssi)
6468 default_match_rssi = nla_get_s32(rssi);
6469 }
6470 }
6471
6472 /* However, if there's no other matchset, add the RSSI one */
6473 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6474 n_match_sets = 1;
a1f1c21c
LC		 6475
6476 if (n_match_sets > wiphy->max_match_sets)
256da02d 6477 return ERR_PTR(-EINVAL);
a1f1c21c 6478
256da02d
LC		 6479 if (attrs[NL80211_ATTR_IE])
6480 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6481 else
6482 ie_len = 0;
6483
5a865bad 6484 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6485 return ERR_PTR(-EINVAL);
c10841ca 6486
3b06d277
AS		 6487 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6488 /*
6489 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6490 * each scan plan already specifies its own interval
6491 */
6492 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6493 return ERR_PTR(-EINVAL);
6494
6495 nla_for_each_nested(attr,
6496 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6497 n_plans++;
6498 } else {
6499 /*
6500 * The scan interval attribute is kept for backward
6501 * compatibility. If no scan plans are specified and sched scan
6502 * interval is specified, one scan plan will be set with this
6503 * scan interval and infinite number of iterations.
6504 */
6505 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6506 return ERR_PTR(-EINVAL);
6507
6508 n_plans = 1;
6509 }
6510
6511 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6512 return ERR_PTR(-EINVAL);
6513
807f8a8c 6514 request = kzalloc(sizeof(*request)
a2cd43c5 6515 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6516 + sizeof(*request->match_sets) * n_match_sets
3b06d277 6517 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 6518 + sizeof(*request->channels) * n_channels
807f8a8c 6519 + ie_len, GFP_KERNEL);
256da02d
LC		 6520 if (!request)
6521 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6522
6523 if (n_ssids)
6524 request->ssids = (void *)&request->channels[n_channels];
6525 request->n_ssids = n_ssids;
6526 if (ie_len) {
13874e4b 6527 if (n_ssids)
807f8a8c
LC		 6528 request->ie = (void *)(request->ssids + n_ssids);
6529 else
6530 request->ie = (void *)(request->channels + n_channels);
6531 }
6532
a1f1c21c
LC		 6533 if (n_match_sets) {
6534 if (request->ie)
6535 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6536 else if (n_ssids)
a1f1c21c
LC		 6537 request->match_sets =
6538 (void *)(request->ssids + n_ssids);
6539 else
6540 request->match_sets =
6541 (void *)(request->channels + n_channels);
6542 }
6543 request->n_match_sets = n_match_sets;
6544
3b06d277
AS		 6545 if (n_match_sets)
6546 request->scan_plans = (void *)(request->match_sets +
6547 n_match_sets);
6548 else if (request->ie)
6549 request->scan_plans = (void *)(request->ie + ie_len);
6550 else if (n_ssids)
6551 request->scan_plans = (void *)(request->ssids + n_ssids);
6552 else
6553 request->scan_plans = (void *)(request->channels + n_channels);
6554
6555 request->n_scan_plans = n_plans;
6556
807f8a8c 6557 i = 0;
256da02d 6558 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6559 /* user specified, bail out if channel not found */
6560 nla_for_each_nested(attr,
256da02d 6561 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6562 tmp) {
6563 struct ieee80211_channel *chan;
6564
6565 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6566
6567 if (!chan) {
6568 err = -EINVAL;
6569 goto out_free;
6570 }
6571
6572 /* ignore disabled channels */
6573 if (chan->flags & IEEE80211_CHAN_DISABLED)
6574 continue;
6575
6576 request->channels[i] = chan;
6577 i++;
6578 }
6579 } else {
6580 /* all channels */
57fbcce3 6581 for (band = 0; band < NUM_NL80211_BANDS; band++) {
807f8a8c 6582 int j;
7a087e74 6583
807f8a8c
LC		 6584 if (!wiphy->bands[band])
6585 continue;
6586 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6587 struct ieee80211_channel *chan;
6588
6589 chan = &wiphy->bands[band]->channels[j];
6590
6591 if (chan->flags & IEEE80211_CHAN_DISABLED)
6592 continue;
6593
6594 request->channels[i] = chan;
6595 i++;
6596 }
6597 }
6598 }
6599
6600 if (!i) {
6601 err = -EINVAL;
6602 goto out_free;
6603 }
6604
6605 request->n_channels = i;
6606
6607 i = 0;
13874e4b 6608 if (n_ssids) {
256da02d 6609 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6610 tmp) {
57a27e1d 6611 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6612 err = -EINVAL;
6613 goto out_free;
6614 }
57a27e1d 6615 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6616 memcpy(request->ssids[i].ssid, nla_data(attr),
6617 nla_len(attr));
807f8a8c
LC		 6618 i++;
6619 }
6620 }
6621
a1f1c21c 6622 i = 0;
256da02d 6623 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6624 nla_for_each_nested(attr,
256da02d 6625 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6626 tmp) {
88e920b4 6627 struct nlattr *ssid, *rssi;
a1f1c21c 6628
ae811e21
JB		 6629 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6630 nla_data(attr), nla_len(attr),
6631 nl80211_match_policy);
6632 if (err)
6633 goto out_free;
4a4ab0d7 6634 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6635 if (ssid) {
ea73cbce
JB		 6636 if (WARN_ON(i >= n_match_sets)) {
6637 /* this indicates a programming error,
6638 * the loop above should have verified
6639 * things properly
6640 */
6641 err = -EINVAL;
6642 goto out_free;
6643 }
6644
a1f1c21c
LC		 6645 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6646 err = -EINVAL;
6647 goto out_free;
6648 }
6649 memcpy(request->match_sets[i].ssid.ssid,
6650 nla_data(ssid), nla_len(ssid));
6651 request->match_sets[i].ssid.ssid_len =
6652 nla_len(ssid);
56ab364f 6653 /* special attribute - old implementation w/a */
ea73cbce
JB		 6654 request->match_sets[i].rssi_thold =
6655 default_match_rssi;
6656 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6657 if (rssi)
6658 request->match_sets[i].rssi_thold =
6659 nla_get_s32(rssi);
a1f1c21c
LC		 6660 }
6661 i++;
6662 }
ea73cbce
JB		 6663
6664 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 6665 if (i == 0 && n_match_sets)
ea73cbce
JB		 6666 request->match_sets[0].rssi_thold = default_match_rssi;
6667
6668 request->min_rssi_thold = INT_MAX;
6669 for (i = 0; i < n_match_sets; i++)
6670 request->min_rssi_thold =
6671 min(request->match_sets[i].rssi_thold,
6672 request->min_rssi_thold);
6673 } else {
6674 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6675 }
6676
9900e484
JB		 6677 if (ie_len) {
6678 request->ie_len = ie_len;
807f8a8c 6679 memcpy((void *)request->ie,
256da02d 6680 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6681 request->ie_len);
6682 }
6683
256da02d 6684 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6685 request->flags = nla_get_u32(
256da02d 6686 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6687 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6688 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6689 err = -EOPNOTSUPP;
6690 goto out_free;
6691 }
ad2b26ab
JB		 6692
6693 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6694 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6695
6696 if (!wdev) /* must be net-detect */
6697 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6698
6699 if (!(wiphy->features & flg)) {
6700 err = -EOPNOTSUPP;
6701 goto out_free;
6702 }
6703
6704 if (wdev && wdev->current_bss) {
6705 err = -EOPNOTSUPP;
6706 goto out_free;
6707 }
6708
6709 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6710 request->mac_addr_mask);
6711 if (err)
6712 goto out_free;
6713 }
46856bbf 6714 }
ed473771 6715
9c748934
LC		 6716 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6717 request->delay =
6718 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6719
3b06d277
AS		 6720 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
6721 if (err)
6722 goto out_free;
6723
15d6030b 6724 request->scan_start = jiffies;
807f8a8c 6725
256da02d 6726 return request;
807f8a8c
LC		 6727
6728out_free:
6729 kfree(request);
256da02d
LC		 6730 return ERR_PTR(err);
6731}
6732
6733static int nl80211_start_sched_scan(struct sk_buff *skb,
6734 struct genl_info *info)
6735{
6736 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6737 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6738 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6739 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6740 int err;
6741
6742 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6743 !rdev->ops->sched_scan_start)
6744 return -EOPNOTSUPP;
6745
6746 if (rdev->sched_scan_req)
6747 return -EINPROGRESS;
6748
31a60ed1
JR		 6749 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6750 info->attrs);
6751
6752 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6753 if (err)
6754 goto out_err;
6755
31a60ed1 6756 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6757 if (err)
6758 goto out_free;
6759
31a60ed1
JR		 6760 sched_scan_req->dev = dev;
6761 sched_scan_req->wiphy = &rdev->wiphy;
6762
93a1e86c
JR		 6763 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6764 sched_scan_req->owner_nlportid = info->snd_portid;
6765
31a60ed1 6766 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6767
6768 nl80211_send_sched_scan(rdev, dev,
6769 NL80211_CMD_START_SCHED_SCAN);
6770 return 0;
6771
6772out_free:
31a60ed1 6773 kfree(sched_scan_req);
256da02d 6774out_err:
807f8a8c
LC		 6775 return err;
6776}
6777
6778static int nl80211_stop_sched_scan(struct sk_buff *skb,
6779 struct genl_info *info)
6780{
6781 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6782
6783 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6784 !rdev->ops->sched_scan_stop)
6785 return -EOPNOTSUPP;
6786
5fe231e8 6787 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6788}
6789
04f39047
SW		 6790static int nl80211_start_radar_detection(struct sk_buff *skb,
6791 struct genl_info *info)
6792{
6793 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6794 struct net_device *dev = info->user_ptr[1];
6795 struct wireless_dev *wdev = dev->ieee80211_ptr;
6796 struct cfg80211_chan_def chandef;
55f7435c 6797 enum nl80211_dfs_regions dfs_region;
31559f35 6798 unsigned int cac_time_ms;
04f39047
SW		 6799 int err;
6800
55f7435c
LR		 6801 dfs_region = reg_get_dfs_region(wdev->wiphy);
6802 if (dfs_region == NL80211_DFS_UNSET)
6803 return -EINVAL;
6804
04f39047
SW		 6805 err = nl80211_parse_chandef(rdev, info, &chandef);
6806 if (err)
6807 return err;
6808
ff311bc1
SW		 6809 if (netif_carrier_ok(dev))
6810 return -EBUSY;
6811
04f39047
SW		 6812 if (wdev->cac_started)
6813 return -EBUSY;
6814
2beb6dab 6815 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6816 wdev->iftype);
04f39047
SW		 6817 if (err < 0)
6818 return err;
6819
6820 if (err == 0)
6821 return -EINVAL;
6822
fe7c3a1f 6823 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6824 return -EINVAL;
6825
6826 if (!rdev->ops->start_radar_detection)
6827 return -EOPNOTSUPP;
6828
31559f35
JD		 6829 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6830 if (WARN_ON(!cac_time_ms))
6831 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6832
a1056b1b 6833 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 6834 if (!err) {
9e0e2961 6835 wdev->chandef = chandef;
04f39047
SW		 6836 wdev->cac_started = true;
6837 wdev->cac_start_time = jiffies;
31559f35 6838 wdev->cac_time_ms = cac_time_ms;
04f39047 6839 }
04f39047
SW		 6840 return err;
6841}
6842
16ef1fe2
SW		 6843static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6844{
6845 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6846 struct net_device *dev = info->user_ptr[1];
6847 struct wireless_dev *wdev = dev->ieee80211_ptr;
6848 struct cfg80211_csa_settings params;
6849 /* csa_attrs is defined static to avoid waste of stack size - this
6850 * function is called under RTNL lock, so this should not be a problem.
6851 */
6852 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6853 int err;
ee4bc9e7 6854 bool need_new_beacon = false;
9a774c78 6855 int len, i;
252e07ca 6856 u32 cs_count;
16ef1fe2
SW		 6857
6858 if (!rdev->ops->channel_switch ||
6859 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6860 return -EOPNOTSUPP;
6861
ee4bc9e7
SW		 6862 switch (dev->ieee80211_ptr->iftype) {
6863 case NL80211_IFTYPE_AP:
6864 case NL80211_IFTYPE_P2P_GO:
6865 need_new_beacon = true;
6866
6867 /* useless if AP is not running */
6868 if (!wdev->beacon_interval)
1ff79dfa 6869 return -ENOTCONN;
ee4bc9e7
SW		 6870 break;
6871 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6872 if (!wdev->ssid_len)
6873 return -ENOTCONN;
6874 break;
c6da674a 6875 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6876 if (!wdev->mesh_id_len)
6877 return -ENOTCONN;
ee4bc9e7
SW		 6878 break;
6879 default:
16ef1fe2 6880 return -EOPNOTSUPP;
ee4bc9e7 6881 }
16ef1fe2
SW		 6882
6883 memset(&params, 0, sizeof(params));
6884
6885 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6886 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6887 return -EINVAL;
6888
6889 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6890 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6891 return -EINVAL;
6892
252e07ca
LC		 6893 /* Even though the attribute is u32, the specification says
6894 * u8, so let's make sure we don't overflow.
6895 */
6896 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6897 if (cs_count > 255)
6898 return -EINVAL;
6899
6900 params.count = cs_count;
16ef1fe2 6901
ee4bc9e7
SW		 6902 if (!need_new_beacon)
6903 goto skip_beacons;
6904
16ef1fe2
SW		 6905 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6906 if (err)
6907 return err;
6908
6909 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6910 info->attrs[NL80211_ATTR_CSA_IES],
6911 nl80211_policy);
6912 if (err)
6913 return err;
6914
6915 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6916 if (err)
6917 return err;
6918
6919 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6920 return -EINVAL;
6921
9a774c78
AO		 6922 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6923 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6924 return -EINVAL;
6925
9a774c78
AO		 6926 params.n_counter_offsets_beacon = len / sizeof(u16);
6927 if (rdev->wiphy.max_num_csa_counters &&
6928 (params.n_counter_offsets_beacon >
6929 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6930 return -EINVAL;
6931
9a774c78
AO		 6932 params.counter_offsets_beacon =
6933 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6934
6935 /* sanity checks - counters should fit and be the same */
6936 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6937 u16 offset = params.counter_offsets_beacon[i];
6938
6939 if (offset >= params.beacon_csa.tail_len)
6940 return -EINVAL;
6941
6942 if (params.beacon_csa.tail[offset] != params.count)
6943 return -EINVAL;
6944 }
6945
16ef1fe2 6946 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6947 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6948 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6949 return -EINVAL;
6950
9a774c78
AO		 6951 params.n_counter_offsets_presp = len / sizeof(u16);
6952 if (rdev->wiphy.max_num_csa_counters &&
6953 (params.n_counter_offsets_beacon >
6954 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6955 return -EINVAL;
9a774c78
AO		 6956
6957 params.counter_offsets_presp =
6958 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6959
6960 /* sanity checks - counters should fit and be the same */
6961 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6962 u16 offset = params.counter_offsets_presp[i];
6963
6964 if (offset >= params.beacon_csa.probe_resp_len)
6965 return -EINVAL;
6966
6967 if (params.beacon_csa.probe_resp[offset] !=
6968 params.count)
6969 return -EINVAL;
6970 }
16ef1fe2
SW		 6971 }
6972
ee4bc9e7 6973skip_beacons:
16ef1fe2
SW		 6974 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6975 if (err)
6976 return err;
6977
923b352f
AN		 6978 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
6979 wdev->iftype))
16ef1fe2
SW		 6980 return -EINVAL;
6981
2beb6dab
LC		 6982 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6983 &params.chandef,
6984 wdev->iftype);
6985 if (err < 0)
6986 return err;
6987
dcc6c2f5 6988 if (err > 0)
2beb6dab 6989 params.radar_required = true;
16ef1fe2 6990
16ef1fe2
SW		 6991 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6992 params.block_tx = true;
6993
c56589ed
SW		 6994 wdev_lock(wdev);
6995 err = rdev_channel_switch(rdev, dev, &params);
6996 wdev_unlock(wdev);
6997
6998 return err;
16ef1fe2
SW		 6999}
7000
9720bb3a
JB		 7001static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7002 u32 seq, int flags,
2a519311 7003 struct cfg80211_registered_device *rdev,
48ab905d
JB		 7004 struct wireless_dev *wdev,
7005 struct cfg80211_internal_bss *intbss)
2a519311 7006{
48ab905d 7007 struct cfg80211_bss *res = &intbss->pub;
9caf0364 7008 const struct cfg80211_bss_ies *ies;
2a519311
JB		 7009 void *hdr;
7010 struct nlattr *bss;
48ab905d
JB		 7011
7012 ASSERT_WDEV_LOCK(wdev);
2a519311 7013
15e47304 7014 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 7015 NL80211_CMD_NEW_SCAN_RESULTS);
7016 if (!hdr)
7017 return -1;
7018
9720bb3a
JB		 7019 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
7020
97990a06
JB		 7021 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7022 goto nla_put_failure;
7023 if (wdev->netdev &&
9360ffd1
DM		 7024 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7025 goto nla_put_failure;
2dad624e
ND		 7026 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7027 NL80211_ATTR_PAD))
97990a06 7028 goto nla_put_failure;
2a519311
JB		 7029
7030 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7031 if (!bss)
7032 goto nla_put_failure;
9360ffd1 7033 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 7034 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 7035 goto nla_put_failure;
9caf0364
JB		 7036
7037 rcu_read_lock();
0e227084
JB		 7038 /* indicate whether we have probe response data or not */
7039 if (rcu_access_pointer(res->proberesp_ies) &&
7040 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7041 goto fail_unlock_rcu;
7042
7043 /* this pointer prefers to be pointed to probe response data
7044 * but is always valid
7045 */
9caf0364 7046 ies = rcu_dereference(res->ies);
8cef2c9d 7047 if (ies) {
2dad624e
ND		 7048 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7049 NL80211_BSS_PAD))
8cef2c9d 7050 goto fail_unlock_rcu;
8cef2c9d
JB		 7051 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7052 ies->len, ies->data))
7053 goto fail_unlock_rcu;
9caf0364 7054 }
0e227084
JB		 7055
7056 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 7057 ies = rcu_dereference(res->beacon_ies);
0e227084 7058 if (ies && ies->from_beacon) {
2dad624e
ND		 7059 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7060 NL80211_BSS_PAD))
8cef2c9d
JB		 7061 goto fail_unlock_rcu;
7062 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7063 ies->len, ies->data))
7064 goto fail_unlock_rcu;
9caf0364
JB		 7065 }
7066 rcu_read_unlock();
7067
9360ffd1
DM		 7068 if (res->beacon_interval &&
7069 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7070 goto nla_put_failure;
7071 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7072 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 7073 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 7074 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7075 jiffies_to_msecs(jiffies - intbss->ts)))
7076 goto nla_put_failure;
2a519311 7077
1d76250b
AS		 7078 if (intbss->parent_tsf &&
7079 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7080 intbss->parent_tsf, NL80211_BSS_PAD) ||
7081 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7082 intbss->parent_bssid)))
7083 goto nla_put_failure;
7084
6e19bc4b 7085 if (intbss->ts_boottime &&
2dad624e
ND		 7086 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7087 intbss->ts_boottime, NL80211_BSS_PAD))
6e19bc4b
DS		 7088 goto nla_put_failure;
7089
77965c97 7090 switch (rdev->wiphy.signal_type) {
2a519311 7091 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 7092 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7093 goto nla_put_failure;
2a519311
JB		 7094 break;
7095 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 7096 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7097 goto nla_put_failure;
2a519311
JB		 7098 break;
7099 default:
7100 break;
7101 }
7102
48ab905d 7103 switch (wdev->iftype) {
074ac8df 7104 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 7105 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 7106 if (intbss == wdev->current_bss &&
7107 nla_put_u32(msg, NL80211_BSS_STATUS,
7108 NL80211_BSS_STATUS_ASSOCIATED))
7109 goto nla_put_failure;
48ab905d
JB		 7110 break;
7111 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 7112 if (intbss == wdev->current_bss &&
7113 nla_put_u32(msg, NL80211_BSS_STATUS,
7114 NL80211_BSS_STATUS_IBSS_JOINED))
7115 goto nla_put_failure;
48ab905d
JB		 7116 break;
7117 default:
7118 break;
7119 }
7120
2a519311
JB		 7121 nla_nest_end(msg, bss);
7122
053c095a
JB		 7123 genlmsg_end(msg, hdr);
7124 return 0;
2a519311 7125
8cef2c9d
JB		 7126 fail_unlock_rcu:
7127 rcu_read_unlock();
2a519311
JB		 7128 nla_put_failure:
7129 genlmsg_cancel(msg, hdr);
7130 return -EMSGSIZE;
7131}
7132
97990a06 7133static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 7134{
48ab905d 7135 struct cfg80211_registered_device *rdev;
2a519311 7136 struct cfg80211_internal_bss *scan;
48ab905d 7137 struct wireless_dev *wdev;
97990a06 7138 int start = cb->args[2], idx = 0;
2a519311
JB		 7139 int err;
7140
97990a06 7141 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7142 if (err)
7143 return err;
2a519311 7144
48ab905d
JB		 7145 wdev_lock(wdev);
7146 spin_lock_bh(&rdev->bss_lock);
7147 cfg80211_bss_expire(rdev);
7148
9720bb3a
JB		 7149 cb->seq = rdev->bss_generation;
7150
48ab905d 7151 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 7152 if (++idx <= start)
7153 continue;
9720bb3a 7154 if (nl80211_send_bss(skb, cb,
2a519311 7155 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 7156 rdev, wdev, scan) < 0) {
2a519311 7157 idx--;
67748893 7158 break;
2a519311
JB		 7159 }
7160 }
7161
48ab905d
JB		 7162 spin_unlock_bh(&rdev->bss_lock);
7163 wdev_unlock(wdev);
2a519311 7164
97990a06
JB		 7165 cb->args[2] = idx;
7166 nl80211_finish_wdev_dump(rdev);
2a519311 7167
67748893 7168 return skb->len;
2a519311
JB		 7169}
7170
15e47304 7171static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 7172 int flags, struct net_device *dev,
7173 bool allow_radio_stats,
7174 struct survey_info *survey)
61fa713c
HS		 7175{
7176 void *hdr;
7177 struct nlattr *infoattr;
7178
11f78ac3
JB		 7179 /* skip radio stats if userspace didn't request them */
7180 if (!survey->channel && !allow_radio_stats)
7181 return 0;
7182
15e47304 7183 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 7184 NL80211_CMD_NEW_SURVEY_RESULTS);
7185 if (!hdr)
7186 return -ENOMEM;
7187
9360ffd1
DM		 7188 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7189 goto nla_put_failure;
61fa713c
HS		 7190
7191 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7192 if (!infoattr)
7193 goto nla_put_failure;
7194
11f78ac3
JB		 7195 if (survey->channel &&
7196 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 7197 survey->channel->center_freq))
7198 goto nla_put_failure;
7199
7200 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7201 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7202 goto nla_put_failure;
7203 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7204 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7205 goto nla_put_failure;
4ed20beb 7206 if ((survey->filled & SURVEY_INFO_TIME) &&
2dad624e
ND		 7207 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7208 survey->time, NL80211_SURVEY_INFO_PAD))
9360ffd1 7209 goto nla_put_failure;
4ed20beb 7210 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
2dad624e
ND		 7211 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7212 survey->time_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7213 goto nla_put_failure;
4ed20beb 7214 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
2dad624e
ND		 7215 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7216 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
9360ffd1 7217 goto nla_put_failure;
4ed20beb 7218 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
2dad624e
ND		 7219 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7220 survey->time_rx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7221 goto nla_put_failure;
4ed20beb 7222 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
2dad624e
ND		 7223 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7224 survey->time_tx, NL80211_SURVEY_INFO_PAD))
9360ffd1 7225 goto nla_put_failure;
052536ab 7226 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
2dad624e
ND		 7227 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7228 survey->time_scan, NL80211_SURVEY_INFO_PAD))
052536ab 7229 goto nla_put_failure;
61fa713c
HS		 7230
7231 nla_nest_end(msg, infoattr);
7232
053c095a
JB		 7233 genlmsg_end(msg, hdr);
7234 return 0;
61fa713c
HS		 7235
7236 nla_put_failure:
7237 genlmsg_cancel(msg, hdr);
7238 return -EMSGSIZE;
7239}
7240
11f78ac3 7241static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 7242{
7243 struct survey_info survey;
1b8ec87a 7244 struct cfg80211_registered_device *rdev;
97990a06
JB		 7245 struct wireless_dev *wdev;
7246 int survey_idx = cb->args[2];
61fa713c 7247 int res;
11f78ac3 7248 bool radio_stats;
61fa713c 7249
1b8ec87a 7250 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7251 if (res)
7252 return res;
61fa713c 7253
11f78ac3
JB		 7254 /* prepare_wdev_dump parsed the attributes */
7255 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
7256
97990a06
JB		 7257 if (!wdev->netdev) {
7258 res = -EINVAL;
7259 goto out_err;
7260 }
7261
1b8ec87a 7262 if (!rdev->ops->dump_survey) {
61fa713c
HS		 7263 res = -EOPNOTSUPP;
7264 goto out_err;
7265 }
7266
7267 while (1) {
1b8ec87a 7268 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 7269 if (res == -ENOENT)
7270 break;
7271 if (res)
7272 goto out_err;
7273
11f78ac3
JB		 7274 /* don't send disabled channels, but do send non-channel data */
7275 if (survey.channel &&
7276 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 7277 survey_idx++;
7278 continue;
7279 }
7280
61fa713c 7281 if (nl80211_send_survey(skb,
15e47304 7282 NETLINK_CB(cb->skb).portid,
61fa713c 7283 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 7284 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 7285 goto out;
7286 survey_idx++;
7287 }
7288
7289 out:
97990a06 7290 cb->args[2] = survey_idx;
61fa713c
HS		 7291 res = skb->len;
7292 out_err:
1b8ec87a 7293 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 7294 return res;
7295}
7296
b23aa676
SO		 7297static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7298{
7299 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7300 NL80211_WPA_VERSION_2));
7301}
7302
636a5d36
JM		 7303static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7304{
4c476991
JB		 7305 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7306 struct net_device *dev = info->user_ptr[1];
19957bb3 7307 struct ieee80211_channel *chan;
e39e5b5e
JM		 7308 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
7309 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 7310 enum nl80211_auth_type auth_type;
fffd0934 7311 struct key_parse key;
d5cdfacb 7312 bool local_state_change;
636a5d36 7313
f4a11bb0
JB		 7314 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7315 return -EINVAL;
7316
7317 if (!info->attrs[NL80211_ATTR_MAC])
7318 return -EINVAL;
7319
1778092e
JM		 7320 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7321 return -EINVAL;
7322
19957bb3
JB		 7323 if (!info->attrs[NL80211_ATTR_SSID])
7324 return -EINVAL;
7325
7326 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7327 return -EINVAL;
7328
fffd0934
JB		 7329 err = nl80211_parse_key(info, &key);
7330 if (err)
7331 return err;
7332
7333 if (key.idx >= 0) {
e31b8213
JB		 7334 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7335 return -EINVAL;
fffd0934
JB		 7336 if (!key.p.key || !key.p.key_len)
7337 return -EINVAL;
7338 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7339 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7340 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7341 key.p.key_len != WLAN_KEY_LEN_WEP104))
7342 return -EINVAL;
7343 if (key.idx > 4)
7344 return -EINVAL;
7345 } else {
7346 key.p.key_len = 0;
7347 key.p.key = NULL;
7348 }
7349
afea0b7a
JB		 7350 if (key.idx >= 0) {
7351 int i;
7352 bool ok = false;
7a087e74 7353
afea0b7a
JB		 7354 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7355 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7356 ok = true;
7357 break;
7358 }
7359 }
4c476991
JB		 7360 if (!ok)
7361 return -EINVAL;
afea0b7a
JB		 7362 }
7363
4c476991
JB		 7364 if (!rdev->ops->auth)
7365 return -EOPNOTSUPP;
636a5d36 7366
074ac8df 7367 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7368 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7369 return -EOPNOTSUPP;
eec60b03 7370
19957bb3 7371 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 7372 chan = nl80211_get_valid_chan(&rdev->wiphy,
7373 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7374 if (!chan)
4c476991 7375 return -EINVAL;
636a5d36 7376
19957bb3
JB		 7377 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7378 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7379
7380 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7381 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7382 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7383 }
7384
19957bb3 7385 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 7386 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 7387 return -EINVAL;
636a5d36 7388
e39e5b5e
JM		 7389 if (auth_type == NL80211_AUTHTYPE_SAE &&
7390 !info->attrs[NL80211_ATTR_SAE_DATA])
7391 return -EINVAL;
7392
7393 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7394 if (auth_type != NL80211_AUTHTYPE_SAE)
7395 return -EINVAL;
7396 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7397 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7398 /* need to include at least Auth Transaction and Status Code */
7399 if (sae_data_len < 4)
7400 return -EINVAL;
7401 }
7402
d5cdfacb
JM		 7403 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7404
95de817b
JB		 7405 /*
7406 * Since we no longer track auth state, ignore
7407 * requests to only change local state.
7408 */
7409 if (local_state_change)
7410 return 0;
7411
91bf9b26
JB		 7412 wdev_lock(dev->ieee80211_ptr);
7413 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7414 ssid, ssid_len, ie, ie_len,
7415 key.p.key, key.p.key_len, key.idx,
7416 sae_data, sae_data_len);
7417 wdev_unlock(dev->ieee80211_ptr);
7418 return err;
636a5d36
JM		 7419}
7420
c0692b8f
JB		 7421static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7422 struct genl_info *info,
3dc27d25
JB		 7423 struct cfg80211_crypto_settings *settings,
7424 int cipher_limit)
b23aa676 7425{
c0b2bbd8
JB		 7426 memset(settings, 0, sizeof(*settings));
7427
b23aa676
SO		 7428 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7429
c0692b8f
JB		 7430 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7431 u16 proto;
7a087e74 7432
c0692b8f
JB		 7433 proto = nla_get_u16(
7434 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7435 settings->control_port_ethertype = cpu_to_be16(proto);
7436 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7437 proto != ETH_P_PAE)
7438 return -EINVAL;
7439 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7440 settings->control_port_no_encrypt = true;
7441 } else
7442 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7443
b23aa676
SO		 7444 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7445 void *data;
7446 int len, i;
7447
7448 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7449 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7450 settings->n_ciphers_pairwise = len / sizeof(u32);
7451
7452 if (len % sizeof(u32))
7453 return -EINVAL;
7454
3dc27d25 7455 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 7456 return -EINVAL;
7457
7458 memcpy(settings->ciphers_pairwise, data, len);
7459
7460 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 7461 if (!cfg80211_supported_cipher_suite(
7462 &rdev->wiphy,
b23aa676
SO		 7463 settings->ciphers_pairwise[i]))
7464 return -EINVAL;
7465 }
7466
7467 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7468 settings->cipher_group =
7469 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 7470 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7471 settings->cipher_group))
b23aa676
SO		 7472 return -EINVAL;
7473 }
7474
7475 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7476 settings->wpa_versions =
7477 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7478 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7479 return -EINVAL;
7480 }
7481
7482 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7483 void *data;
6d30240e 7484 int len;
b23aa676
SO		 7485
7486 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7487 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7488 settings->n_akm_suites = len / sizeof(u32);
7489
7490 if (len % sizeof(u32))
7491 return -EINVAL;
7492
1b9ca027
JM		 7493 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7494 return -EINVAL;
7495
b23aa676 7496 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 7497 }
7498
7499 return 0;
7500}
7501
636a5d36
JM		 7502static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7503{
4c476991
JB		 7504 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7505 struct net_device *dev = info->user_ptr[1];
f444de05 7506 struct ieee80211_channel *chan;
f62fab73
JB		 7507 struct cfg80211_assoc_request req = {};
7508 const u8 *bssid, *ssid;
7509 int err, ssid_len = 0;
636a5d36 7510
f4a11bb0
JB		 7511 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7512 return -EINVAL;
7513
7514 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 7515 !info->attrs[NL80211_ATTR_SSID] ||
7516 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 7517 return -EINVAL;
7518
4c476991
JB		 7519 if (!rdev->ops->assoc)
7520 return -EOPNOTSUPP;
636a5d36 7521
074ac8df 7522 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7523 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7524 return -EOPNOTSUPP;
eec60b03 7525
19957bb3 7526 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7527
664834de
JM		 7528 chan = nl80211_get_valid_chan(&rdev->wiphy,
7529 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7530 if (!chan)
4c476991 7531 return -EINVAL;
636a5d36 7532
19957bb3
JB		 7533 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7534 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7535
7536 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7537 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7538 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7539 }
7540
dc6382ce 7541 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7542 enum nl80211_mfp mfp =
dc6382ce 7543 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7544 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7545 req.use_mfp = true;
4c476991
JB		 7546 else if (mfp != NL80211_MFP_NO)
7547 return -EINVAL;
dc6382ce
JM		 7548 }
7549
3e5d7649 7550 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7551 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7552
7e7c8926 7553 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7554 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7555
7556 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7557 memcpy(&req.ht_capa_mask,
7558 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7559 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7560
7561 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7562 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7563 return -EINVAL;
f62fab73
JB		 7564 memcpy(&req.ht_capa,
7565 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7566 sizeof(req.ht_capa));
7e7c8926
BG		 7567 }
7568
ee2aca34 7569 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7570 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7571
7572 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7573 memcpy(&req.vht_capa_mask,
7574 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7575 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7576
7577 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7578 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7579 return -EINVAL;
f62fab73
JB		 7580 memcpy(&req.vht_capa,
7581 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7582 sizeof(req.vht_capa));
ee2aca34
JB		 7583 }
7584
bab5ab7d 7585 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 7586 if (!((rdev->wiphy.features &
7587 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
7588 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
7589 !wiphy_ext_feature_isset(&rdev->wiphy,
7590 NL80211_EXT_FEATURE_RRM))
bab5ab7d
AK		 7591 return -EINVAL;
7592 req.flags |= ASSOC_REQ_USE_RRM;
7593 }
7594
f62fab73 7595 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7596 if (!err) {
7597 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7598 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7599 ssid, ssid_len, &req);
91bf9b26
JB		 7600 wdev_unlock(dev->ieee80211_ptr);
7601 }
636a5d36 7602
636a5d36
JM		 7603 return err;
7604}
7605
7606static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7607{
4c476991
JB		 7608 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7609 struct net_device *dev = info->user_ptr[1];
19957bb3 7610 const u8 *ie = NULL, *bssid;
91bf9b26 7611 int ie_len = 0, err;
19957bb3 7612 u16 reason_code;
d5cdfacb 7613 bool local_state_change;
636a5d36 7614
f4a11bb0
JB		 7615 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7616 return -EINVAL;
7617
7618 if (!info->attrs[NL80211_ATTR_MAC])
7619 return -EINVAL;
7620
7621 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7622 return -EINVAL;
7623
4c476991
JB		 7624 if (!rdev->ops->deauth)
7625 return -EOPNOTSUPP;
636a5d36 7626
074ac8df 7627 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7628 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7629 return -EOPNOTSUPP;
eec60b03 7630
19957bb3 7631 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7632
19957bb3
JB		 7633 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7634 if (reason_code == 0) {
f4a11bb0 7635 /* Reason Code 0 is reserved */
4c476991 7636 return -EINVAL;
255e737e 7637 }
636a5d36
JM		 7638
7639 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7640 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7641 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7642 }
7643
d5cdfacb
JM		 7644 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7645
91bf9b26
JB		 7646 wdev_lock(dev->ieee80211_ptr);
7647 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7648 local_state_change);
7649 wdev_unlock(dev->ieee80211_ptr);
7650 return err;
636a5d36
JM		 7651}
7652
7653static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7654{
4c476991
JB		 7655 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7656 struct net_device *dev = info->user_ptr[1];
19957bb3 7657 const u8 *ie = NULL, *bssid;
91bf9b26 7658 int ie_len = 0, err;
19957bb3 7659 u16 reason_code;
d5cdfacb 7660 bool local_state_change;
636a5d36 7661
f4a11bb0
JB		 7662 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7663 return -EINVAL;
7664
7665 if (!info->attrs[NL80211_ATTR_MAC])
7666 return -EINVAL;
7667
7668 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7669 return -EINVAL;
7670
4c476991
JB		 7671 if (!rdev->ops->disassoc)
7672 return -EOPNOTSUPP;
636a5d36 7673
074ac8df 7674 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7675 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7676 return -EOPNOTSUPP;
eec60b03 7677
19957bb3 7678 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7679
19957bb3
JB		 7680 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7681 if (reason_code == 0) {
f4a11bb0 7682 /* Reason Code 0 is reserved */
4c476991 7683 return -EINVAL;
255e737e 7684 }
636a5d36
JM		 7685
7686 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7687 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7688 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7689 }
7690
d5cdfacb
JM		 7691 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7692
91bf9b26
JB		 7693 wdev_lock(dev->ieee80211_ptr);
7694 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7695 local_state_change);
7696 wdev_unlock(dev->ieee80211_ptr);
7697 return err;
636a5d36
JM		 7698}
7699
dd5b4cc7
FF		 7700static bool
7701nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
57fbcce3 7702 int mcast_rate[NUM_NL80211_BANDS],
dd5b4cc7
FF		 7703 int rateval)
7704{
7705 struct wiphy *wiphy = &rdev->wiphy;
7706 bool found = false;
7707 int band, i;
7708
57fbcce3 7709 for (band = 0; band < NUM_NL80211_BANDS; band++) {
dd5b4cc7
FF		 7710 struct ieee80211_supported_band *sband;
7711
7712 sband = wiphy->bands[band];
7713 if (!sband)
7714 continue;
7715
7716 for (i = 0; i < sband->n_bitrates; i++) {
7717 if (sband->bitrates[i].bitrate == rateval) {
7718 mcast_rate[band] = i + 1;
7719 found = true;
7720 break;
7721 }
7722 }
7723 }
7724
7725 return found;
7726}
7727
04a773ad
JB		 7728static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7729{
4c476991
JB		 7730 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7731 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7732 struct cfg80211_ibss_params ibss;
7733 struct wiphy *wiphy;
fffd0934 7734 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7735 int err;
7736
8e30bc55
JB		 7737 memset(&ibss, 0, sizeof(ibss));
7738
04a773ad
JB		 7739 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7740 return -EINVAL;
7741
683b6d3b 7742 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7743 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7744 return -EINVAL;
7745
8e30bc55
JB		 7746 ibss.beacon_interval = 100;
7747
7748 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7749 ibss.beacon_interval =
7750 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7751 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7752 return -EINVAL;
7753 }
7754
4c476991
JB		 7755 if (!rdev->ops->join_ibss)
7756 return -EOPNOTSUPP;
04a773ad 7757
4c476991
JB		 7758 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7759 return -EOPNOTSUPP;
04a773ad 7760
79c97e97 7761 wiphy = &rdev->wiphy;
04a773ad 7762
39193498 7763 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7764 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7765
7766 if (!is_valid_ether_addr(ibss.bssid))
7767 return -EINVAL;
7768 }
04a773ad
JB		 7769 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7770 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7771
7772 if (info->attrs[NL80211_ATTR_IE]) {
7773 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7774 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7775 }
7776
683b6d3b
JB		 7777 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7778 if (err)
7779 return err;
04a773ad 7780
174e0cd2
IP		 7781 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7782 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7783 return -EINVAL;
7784
2f301ab2 7785 switch (ibss.chandef.width) {
bf372645
SW		 7786 case NL80211_CHAN_WIDTH_5:
7787 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7788 case NL80211_CHAN_WIDTH_20_NOHT:
7789 break;
7790 case NL80211_CHAN_WIDTH_20:
7791 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 7792 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7793 return -EINVAL;
7794 break;
7795 case NL80211_CHAN_WIDTH_80:
7796 case NL80211_CHAN_WIDTH_80P80:
7797 case NL80211_CHAN_WIDTH_160:
7798 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7799 return -EINVAL;
7800 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7801 NL80211_EXT_FEATURE_VHT_IBSS))
7802 return -EINVAL;
7803 break;
2f301ab2 7804 default:
c04d6150 7805 return -EINVAL;
2f301ab2 7806 }
db9c64cf 7807
04a773ad 7808 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7809 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7810
fbd2c8dc
TP		 7811 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7812 u8 *rates =
7813 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7814 int n_rates =
7815 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7816 struct ieee80211_supported_band *sband =
683b6d3b 7817 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7818
34850ab2
JB		 7819 err = ieee80211_get_ratemask(sband, rates, n_rates,
7820 &ibss.basic_rates);
7821 if (err)
7822 return err;
fbd2c8dc 7823 }
dd5b4cc7 7824
803768f5
SW		 7825 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7826 memcpy(&ibss.ht_capa_mask,
7827 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7828 sizeof(ibss.ht_capa_mask));
7829
7830 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7831 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7832 return -EINVAL;
7833 memcpy(&ibss.ht_capa,
7834 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7835 sizeof(ibss.ht_capa));
7836 }
7837
dd5b4cc7
FF		 7838 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7839 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7840 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7841 return -EINVAL;
fbd2c8dc 7842
4c476991 7843 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7844 bool no_ht = false;
7845
4c476991 7846 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7847 info->attrs[NL80211_ATTR_KEYS],
7848 &no_ht);
4c476991
JB		 7849 if (IS_ERR(connkeys))
7850 return PTR_ERR(connkeys);
de7044ee 7851
3d9d1d66
JB		 7852 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7853 no_ht) {
5e950a78 7854 kzfree(connkeys);
de7044ee
SM		 7855 return -EINVAL;
7856 }
4c476991 7857 }
04a773ad 7858
267335d6
AQ		 7859 ibss.control_port =
7860 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7861
5336fa88
SW		 7862 ibss.userspace_handles_dfs =
7863 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7864
4c476991 7865 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7866 if (err)
b47f610b 7867 kzfree(connkeys);
04a773ad
JB		 7868 return err;
7869}
7870
7871static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7872{
4c476991
JB		 7873 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7874 struct net_device *dev = info->user_ptr[1];
04a773ad 7875
4c476991
JB		 7876 if (!rdev->ops->leave_ibss)
7877 return -EOPNOTSUPP;
04a773ad 7878
4c476991
JB		 7879 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7880 return -EOPNOTSUPP;
04a773ad 7881
4c476991 7882 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7883}
7884
f4e583c8
AQ		 7885static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7886{
7887 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7888 struct net_device *dev = info->user_ptr[1];
57fbcce3 7889 int mcast_rate[NUM_NL80211_BANDS];
f4e583c8
AQ		 7890 u32 nla_rate;
7891 int err;
7892
7893 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 7894 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7895 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 7896 return -EOPNOTSUPP;
7897
7898 if (!rdev->ops->set_mcast_rate)
7899 return -EOPNOTSUPP;
7900
7901 memset(mcast_rate, 0, sizeof(mcast_rate));
7902
7903 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7904 return -EINVAL;
7905
7906 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7907 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7908 return -EINVAL;
7909
a1056b1b 7910 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 7911
7912 return err;
7913}
7914
ad7e718c
JB		 7915static struct sk_buff *
7916__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 7917 struct wireless_dev *wdev, int approxlen,
7918 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 7919 enum nl80211_attrs attr,
7920 const struct nl80211_vendor_cmd_info *info,
7921 gfp_t gfp)
ad7e718c
JB		 7922{
7923 struct sk_buff *skb;
7924 void *hdr;
7925 struct nlattr *data;
7926
7927 skb = nlmsg_new(approxlen + 100, gfp);
7928 if (!skb)
7929 return NULL;
7930
7931 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7932 if (!hdr) {
7933 kfree_skb(skb);
7934 return NULL;
7935 }
7936
7937 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7938 goto nla_put_failure;
567ffc35
JB		 7939
7940 if (info) {
7941 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7942 info->vendor_id))
7943 goto nla_put_failure;
7944 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7945 info->subcmd))
7946 goto nla_put_failure;
7947 }
7948
6c09e791 7949 if (wdev) {
2dad624e
ND		 7950 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
7951 wdev_id(wdev), NL80211_ATTR_PAD))
6c09e791
AK		 7952 goto nla_put_failure;
7953 if (wdev->netdev &&
7954 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7955 wdev->netdev->ifindex))
7956 goto nla_put_failure;
7957 }
7958
ad7e718c
JB		 7959 data = nla_nest_start(skb, attr);
7960
7961 ((void **)skb->cb)[0] = rdev;
7962 ((void **)skb->cb)[1] = hdr;
7963 ((void **)skb->cb)[2] = data;
7964
7965 return skb;
7966
7967 nla_put_failure:
7968 kfree_skb(skb);
7969 return NULL;
7970}
f4e583c8 7971
e03ad6ea 7972struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 7973 struct wireless_dev *wdev,
e03ad6ea
JB		 7974 enum nl80211_commands cmd,
7975 enum nl80211_attrs attr,
7976 int vendor_event_idx,
7977 int approxlen, gfp_t gfp)
7978{
f26cbf40 7979 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7980 const struct nl80211_vendor_cmd_info *info;
7981
7982 switch (cmd) {
7983 case NL80211_CMD_TESTMODE:
7984 if (WARN_ON(vendor_event_idx != -1))
7985 return NULL;
7986 info = NULL;
7987 break;
7988 case NL80211_CMD_VENDOR:
7989 if (WARN_ON(vendor_event_idx < 0 ||
7990 vendor_event_idx >= wiphy->n_vendor_events))
7991 return NULL;
7992 info = &wiphy->vendor_events[vendor_event_idx];
7993 break;
7994 default:
7995 WARN_ON(1);
7996 return NULL;
7997 }
7998
6c09e791 7999 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 8000 cmd, attr, info, gfp);
8001}
8002EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8003
8004void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8005{
8006 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8007 void *hdr = ((void **)skb->cb)[1];
8008 struct nlattr *data = ((void **)skb->cb)[2];
8009 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8010
bd8c78e7
JB		 8011 /* clear CB data for netlink core to own from now on */
8012 memset(skb->cb, 0, sizeof(skb->cb));
8013
e03ad6ea
JB		 8014 nla_nest_end(skb, data);
8015 genlmsg_end(skb, hdr);
8016
8017 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8018 mcgrp = NL80211_MCGRP_VENDOR;
8019
8020 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8021 mcgrp, gfp);
8022}
8023EXPORT_SYMBOL(__cfg80211_send_event_skb);
8024
aff89a9b 8025#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 8026static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8027{
4c476991 8028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 8029 struct wireless_dev *wdev =
8030 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 8031 int err;
8032
fc73f11f
DS		 8033 if (!rdev->ops->testmode_cmd)
8034 return -EOPNOTSUPP;
8035
8036 if (IS_ERR(wdev)) {
8037 err = PTR_ERR(wdev);
8038 if (err != -EINVAL)
8039 return err;
8040 wdev = NULL;
8041 } else if (wdev->wiphy != &rdev->wiphy) {
8042 return -EINVAL;
8043 }
8044
aff89a9b
JB		 8045 if (!info->attrs[NL80211_ATTR_TESTDATA])
8046 return -EINVAL;
8047
ad7e718c 8048 rdev->cur_cmd_info = info;
fc73f11f 8049 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 8050 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8051 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 8052 rdev->cur_cmd_info = NULL;
aff89a9b 8053
aff89a9b
JB		 8054 return err;
8055}
8056
71063f0e
WYG		 8057static int nl80211_testmode_dump(struct sk_buff *skb,
8058 struct netlink_callback *cb)
8059{
00918d33 8060 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 8061 int err;
8062 long phy_idx;
8063 void *data = NULL;
8064 int data_len = 0;
8065
5fe231e8
JB		 8066 rtnl_lock();
8067
71063f0e
WYG		 8068 if (cb->args[0]) {
8069 /*
8070 * 0 is a valid index, but not valid for args[0],
8071 * so we need to offset by 1.
8072 */
8073 phy_idx = cb->args[0] - 1;
8074 } else {
8075 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
8076 nl80211_fam.attrbuf, nl80211_fam.maxattr,
8077 nl80211_policy);
8078 if (err)
5fe231e8 8079 goto out_err;
00918d33 8080
2bd7e35d
JB		 8081 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
8082 nl80211_fam.attrbuf);
8083 if (IS_ERR(rdev)) {
5fe231e8
JB		 8084 err = PTR_ERR(rdev);
8085 goto out_err;
00918d33 8086 }
2bd7e35d
JB		 8087 phy_idx = rdev->wiphy_idx;
8088 rdev = NULL;
2bd7e35d 8089
71063f0e
WYG		 8090 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
8091 cb->args[1] =
8092 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
8093 }
8094
8095 if (cb->args[1]) {
8096 data = nla_data((void *)cb->args[1]);
8097 data_len = nla_len((void *)cb->args[1]);
8098 }
8099
00918d33
JB		 8100 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8101 if (!rdev) {
5fe231e8
JB		 8102 err = -ENOENT;
8103 goto out_err;
71063f0e 8104 }
71063f0e 8105
00918d33 8106 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 8107 err = -EOPNOTSUPP;
8108 goto out_err;
8109 }
8110
8111 while (1) {
15e47304 8112 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 8113 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8114 NL80211_CMD_TESTMODE);
8115 struct nlattr *tmdata;
8116
cb35fba3
DC		 8117 if (!hdr)
8118 break;
8119
9360ffd1 8120 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 8121 genlmsg_cancel(skb, hdr);
8122 break;
8123 }
8124
8125 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8126 if (!tmdata) {
8127 genlmsg_cancel(skb, hdr);
8128 break;
8129 }
e35e4d28 8130 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 8131 nla_nest_end(skb, tmdata);
8132
8133 if (err == -ENOBUFS || err == -ENOENT) {
8134 genlmsg_cancel(skb, hdr);
8135 break;
8136 } else if (err) {
8137 genlmsg_cancel(skb, hdr);
8138 goto out_err;
8139 }
8140
8141 genlmsg_end(skb, hdr);
8142 }
8143
8144 err = skb->len;
8145 /* see above */
8146 cb->args[0] = phy_idx + 1;
8147 out_err:
5fe231e8 8148 rtnl_unlock();
71063f0e
WYG		 8149 return err;
8150}
aff89a9b
JB		 8151#endif
8152
b23aa676
SO		 8153static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8154{
4c476991
JB		 8155 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8156 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 8157 struct cfg80211_connect_params connect;
8158 struct wiphy *wiphy;
fffd0934 8159 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 8160 int err;
8161
8162 memset(&connect, 0, sizeof(connect));
8163
8164 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8165 return -EINVAL;
8166
8167 if (!info->attrs[NL80211_ATTR_SSID] ||
8168 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8169 return -EINVAL;
8170
8171 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8172 connect.auth_type =
8173 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 8174 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8175 NL80211_CMD_CONNECT))
b23aa676
SO		 8176 return -EINVAL;
8177 } else
8178 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8179
8180 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8181
c0692b8f 8182 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 8183 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 8184 if (err)
8185 return err;
b23aa676 8186
074ac8df 8187 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8188 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8189 return -EOPNOTSUPP;
b23aa676 8190
79c97e97 8191 wiphy = &rdev->wiphy;
b23aa676 8192
4486ea98
BS		 8193 connect.bg_scan_period = -1;
8194 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8195 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8196 connect.bg_scan_period =
8197 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8198 }
8199
b23aa676
SO		 8200 if (info->attrs[NL80211_ATTR_MAC])
8201 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 8202 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8203 connect.bssid_hint =
8204 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 8205 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8206 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8207
8208 if (info->attrs[NL80211_ATTR_IE]) {
8209 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8210 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8211 }
8212
cee00a95
JM		 8213 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8214 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8215 if (connect.mfp != NL80211_MFP_REQUIRED &&
8216 connect.mfp != NL80211_MFP_NO)
8217 return -EINVAL;
8218 } else {
8219 connect.mfp = NL80211_MFP_NO;
8220 }
8221
ba6fbacf
JM		 8222 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8223 connect.prev_bssid =
8224 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8225
b23aa676 8226 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 8227 connect.channel = nl80211_get_valid_chan(
8228 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8229 if (!connect.channel)
1df4a510
JM		 8230 return -EINVAL;
8231 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 8232 connect.channel_hint = nl80211_get_valid_chan(
8233 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8234 if (!connect.channel_hint)
4c476991 8235 return -EINVAL;
b23aa676
SO		 8236 }
8237
fffd0934
JB		 8238 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8239 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 8240 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 8241 if (IS_ERR(connkeys))
8242 return PTR_ERR(connkeys);
fffd0934
JB		 8243 }
8244
7e7c8926
BG		 8245 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8246 connect.flags |= ASSOC_REQ_DISABLE_HT;
8247
8248 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8249 memcpy(&connect.ht_capa_mask,
8250 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8251 sizeof(connect.ht_capa_mask));
8252
8253 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 8254 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 8255 kzfree(connkeys);
7e7c8926 8256 return -EINVAL;
b4e4f47e 8257 }
7e7c8926
BG		 8258 memcpy(&connect.ht_capa,
8259 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8260 sizeof(connect.ht_capa));
8261 }
8262
ee2aca34
JB		 8263 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8264 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8265
8266 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8267 memcpy(&connect.vht_capa_mask,
8268 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8269 sizeof(connect.vht_capa_mask));
8270
8271 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8272 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 8273 kzfree(connkeys);
ee2aca34
JB		 8274 return -EINVAL;
8275 }
8276 memcpy(&connect.vht_capa,
8277 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8278 sizeof(connect.vht_capa));
8279 }
8280
bab5ab7d 8281 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8282 if (!((rdev->wiphy.features &
8283 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8284 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8285 !wiphy_ext_feature_isset(&rdev->wiphy,
8286 NL80211_EXT_FEATURE_RRM)) {
707554b4 8287 kzfree(connkeys);
bab5ab7d 8288 return -EINVAL;
707554b4 8289 }
bab5ab7d
AK		 8290 connect.flags |= ASSOC_REQ_USE_RRM;
8291 }
8292
34d50519 8293 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
57fbcce3 8294 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
34d50519
LD		 8295 kzfree(connkeys);
8296 return -EOPNOTSUPP;
8297 }
8298
38de03d2
AS		 8299 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
8300 /* bss selection makes no sense if bssid is set */
8301 if (connect.bssid) {
8302 kzfree(connkeys);
8303 return -EINVAL;
8304 }
8305
8306 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
8307 wiphy, &connect.bss_select);
8308 if (err) {
8309 kzfree(connkeys);
8310 return err;
8311 }
8312 }
8313
83739b03 8314 wdev_lock(dev->ieee80211_ptr);
4ce2bd9c
JM		 8315 err = cfg80211_connect(rdev, dev, &connect, connkeys,
8316 connect.prev_bssid);
83739b03 8317 wdev_unlock(dev->ieee80211_ptr);
fffd0934 8318 if (err)
b47f610b 8319 kzfree(connkeys);
b23aa676
SO		 8320 return err;
8321}
8322
8323static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8324{
4c476991
JB		 8325 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8326 struct net_device *dev = info->user_ptr[1];
b23aa676 8327 u16 reason;
83739b03 8328 int ret;
b23aa676
SO		 8329
8330 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8331 reason = WLAN_REASON_DEAUTH_LEAVING;
8332 else
8333 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8334
8335 if (reason == 0)
8336 return -EINVAL;
8337
074ac8df 8338 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8339 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8340 return -EOPNOTSUPP;
b23aa676 8341
83739b03
JB		 8342 wdev_lock(dev->ieee80211_ptr);
8343 ret = cfg80211_disconnect(rdev, dev, reason, true);
8344 wdev_unlock(dev->ieee80211_ptr);
8345 return ret;
b23aa676
SO		 8346}
8347
463d0183
JB		 8348static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8349{
4c476991 8350 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 8351 struct net *net;
8352 int err;
463d0183 8353
4b681c82
VK		 8354 if (info->attrs[NL80211_ATTR_PID]) {
8355 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8356
8357 net = get_net_ns_by_pid(pid);
8358 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8359 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 8360
4b681c82
VK		 8361 net = get_net_ns_by_fd(fd);
8362 } else {
8363 return -EINVAL;
8364 }
463d0183 8365
4c476991
JB		 8366 if (IS_ERR(net))
8367 return PTR_ERR(net);
463d0183
JB		 8368
8369 err = 0;
8370
8371 /* check if anything to do */
4c476991
JB		 8372 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8373 err = cfg80211_switch_netns(rdev, net);
463d0183 8374
463d0183 8375 put_net(net);
463d0183
JB		 8376 return err;
8377}
8378
67fbb16b
SO		 8379static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8380{
4c476991 8381 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 8382 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8383 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 8384 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 8385 struct cfg80211_pmksa pmksa;
8386
8387 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8388
8389 if (!info->attrs[NL80211_ATTR_MAC])
8390 return -EINVAL;
8391
8392 if (!info->attrs[NL80211_ATTR_PMKID])
8393 return -EINVAL;
8394
67fbb16b
SO		 8395 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8396 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8397
074ac8df 8398 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8399 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8400 return -EOPNOTSUPP;
67fbb16b
SO		 8401
8402 switch (info->genlhdr->cmd) {
8403 case NL80211_CMD_SET_PMKSA:
8404 rdev_ops = rdev->ops->set_pmksa;
8405 break;
8406 case NL80211_CMD_DEL_PMKSA:
8407 rdev_ops = rdev->ops->del_pmksa;
8408 break;
8409 default:
8410 WARN_ON(1);
8411 break;
8412 }
8413
4c476991
JB		 8414 if (!rdev_ops)
8415 return -EOPNOTSUPP;
67fbb16b 8416
4c476991 8417 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 8418}
8419
8420static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8421{
4c476991
JB		 8422 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8423 struct net_device *dev = info->user_ptr[1];
67fbb16b 8424
074ac8df 8425 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8426 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8427 return -EOPNOTSUPP;
67fbb16b 8428
4c476991
JB		 8429 if (!rdev->ops->flush_pmksa)
8430 return -EOPNOTSUPP;
67fbb16b 8431
e35e4d28 8432 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 8433}
8434
109086ce
AN		 8435static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8436{
8437 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8438 struct net_device *dev = info->user_ptr[1];
8439 u8 action_code, dialog_token;
df942e7b 8440 u32 peer_capability = 0;
109086ce
AN		 8441 u16 status_code;
8442 u8 *peer;
31fa97c5 8443 bool initiator;
109086ce
AN		 8444
8445 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8446 !rdev->ops->tdls_mgmt)
8447 return -EOPNOTSUPP;
8448
8449 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8450 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8451 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8452 !info->attrs[NL80211_ATTR_IE] ||
8453 !info->attrs[NL80211_ATTR_MAC])
8454 return -EINVAL;
8455
8456 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8457 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8458 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8459 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 8460 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 8461 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8462 peer_capability =
8463 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 8464
e35e4d28 8465 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 8466 dialog_token, status_code, peer_capability,
31fa97c5 8467 initiator,
e35e4d28
HG		 8468 nla_data(info->attrs[NL80211_ATTR_IE]),
8469 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 8470}
8471
8472static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8473{
8474 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8475 struct net_device *dev = info->user_ptr[1];
8476 enum nl80211_tdls_operation operation;
8477 u8 *peer;
8478
8479 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8480 !rdev->ops->tdls_oper)
8481 return -EOPNOTSUPP;
8482
8483 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8484 !info->attrs[NL80211_ATTR_MAC])
8485 return -EINVAL;
8486
8487 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8488 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8489
e35e4d28 8490 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 8491}
8492
9588bbd5
JM		 8493static int nl80211_remain_on_channel(struct sk_buff *skb,
8494 struct genl_info *info)
8495{
4c476991 8496 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8497 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8498 struct cfg80211_chan_def chandef;
9588bbd5
JM		 8499 struct sk_buff *msg;
8500 void *hdr;
8501 u64 cookie;
683b6d3b 8502 u32 duration;
9588bbd5
JM		 8503 int err;
8504
8505 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8506 !info->attrs[NL80211_ATTR_DURATION])
8507 return -EINVAL;
8508
8509 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8510
ebf348fc
JB		 8511 if (!rdev->ops->remain_on_channel ||
8512 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8513 return -EOPNOTSUPP;
8514
9588bbd5 8515 /*
ebf348fc
JB		 8516 * We should be on that channel for at least a minimum amount of
8517 * time (10ms) but no longer than the driver supports.
9588bbd5 8518 */
ebf348fc 8519 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 8520 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 8521 return -EINVAL;
8522
683b6d3b
JB		 8523 err = nl80211_parse_chandef(rdev, info, &chandef);
8524 if (err)
8525 return err;
9588bbd5
JM		 8526
8527 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8528 if (!msg)
8529 return -ENOMEM;
9588bbd5 8530
15e47304 8531 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 8532 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 8533 if (!hdr) {
8534 err = -ENOBUFS;
9588bbd5
JM		 8535 goto free_msg;
8536 }
8537
683b6d3b
JB		 8538 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8539 duration, &cookie);
9588bbd5
JM		 8540
8541 if (err)
8542 goto free_msg;
8543
2dad624e
ND		 8544 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
8545 NL80211_ATTR_PAD))
9360ffd1 8546 goto nla_put_failure;
9588bbd5
JM		 8547
8548 genlmsg_end(msg, hdr);
4c476991
JB		 8549
8550 return genlmsg_reply(msg, info);
9588bbd5
JM		 8551
8552 nla_put_failure:
8553 err = -ENOBUFS;
8554 free_msg:
8555 nlmsg_free(msg);
9588bbd5
JM		 8556 return err;
8557}
8558
8559static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8560 struct genl_info *info)
8561{
4c476991 8562 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8563 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 8564 u64 cookie;
9588bbd5
JM		 8565
8566 if (!info->attrs[NL80211_ATTR_COOKIE])
8567 return -EINVAL;
8568
4c476991
JB		 8569 if (!rdev->ops->cancel_remain_on_channel)
8570 return -EOPNOTSUPP;
9588bbd5 8571
9588bbd5
JM		 8572 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8573
e35e4d28 8574 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 8575}
8576
13ae75b1
JM		 8577static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8578 u8 *rates, u8 rates_len)
8579{
8580 u8 i;
8581 u32 mask = 0;
8582
8583 for (i = 0; i < rates_len; i++) {
8584 int rate = (rates[i] & 0x7f) * 5;
8585 int ridx;
7a087e74 8586
13ae75b1
JM		 8587 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8588 struct ieee80211_rate *srate =
8589 &sband->bitrates[ridx];
8590 if (rate == srate->bitrate) {
8591 mask |= 1 << ridx;
8592 break;
8593 }
8594 }
8595 if (ridx == sband->n_bitrates)
8596 return 0; /* rate not found */
8597 }
8598
8599 return mask;
8600}
8601
24db78c0
SW		 8602static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8603 u8 *rates, u8 rates_len,
8604 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8605{
8606 u8 i;
8607
8608 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8609
8610 for (i = 0; i < rates_len; i++) {
8611 int ridx, rbit;
8612
8613 ridx = rates[i] / 8;
8614 rbit = BIT(rates[i] % 8);
8615
8616 /* check validity */
910570b5 8617 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 8618 return false;
8619
8620 /* check availability */
8621 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8622 mcs[ridx] |= rbit;
8623 else
8624 return false;
8625 }
8626
8627 return true;
8628}
8629
204e35a9
JD		 8630static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8631{
8632 u16 mcs_mask = 0;
8633
8634 switch (vht_mcs_map) {
8635 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8636 break;
8637 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8638 mcs_mask = 0x00FF;
8639 break;
8640 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8641 mcs_mask = 0x01FF;
8642 break;
8643 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8644 mcs_mask = 0x03FF;
8645 break;
8646 default:
8647 break;
8648 }
8649
8650 return mcs_mask;
8651}
8652
8653static void vht_build_mcs_mask(u16 vht_mcs_map,
8654 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8655{
8656 u8 nss;
8657
8658 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8659 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8660 vht_mcs_map >>= 2;
8661 }
8662}
8663
8664static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8665 struct nl80211_txrate_vht *txrate,
8666 u16 mcs[NL80211_VHT_NSS_MAX])
8667{
8668 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8669 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8670 u8 i;
8671
8672 if (!sband->vht_cap.vht_supported)
8673 return false;
8674
8675 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8676
8677 /* Build vht_mcs_mask from VHT capabilities */
8678 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8679
8680 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8681 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8682 mcs[i] = txrate->mcs[i];
8683 else
8684 return false;
8685 }
8686
8687 return true;
8688}
8689
b54452b0 8690static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8691 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8692 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8693 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8694 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8695 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8696 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8697};
8698
8699static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8700 struct genl_info *info)
8701{
8702 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8703 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8704 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8705 int rem, i;
8706 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8707 struct nlattr *tx_rates;
8708 struct ieee80211_supported_band *sband;
204e35a9 8709 u16 vht_tx_mcs_map;
13ae75b1 8710
4c476991
JB		 8711 if (!rdev->ops->set_bitrate_mask)
8712 return -EOPNOTSUPP;
13ae75b1
JM		 8713
8714 memset(&mask, 0, sizeof(mask));
8715 /* Default to all rates enabled */
57fbcce3 8716 for (i = 0; i < NUM_NL80211_BANDS; i++) {
13ae75b1 8717 sband = rdev->wiphy.bands[i];
7869303b
JD		 8718
8719 if (!sband)
8720 continue;
8721
8722 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8723 memcpy(mask.control[i].ht_mcs,
7869303b 8724 sband->ht_cap.mcs.rx_mask,
d1e33e65 8725 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8726
8727 if (!sband->vht_cap.vht_supported)
8728 continue;
8729
8730 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8731 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8732 }
8733
b9243ab0
JD		 8734 /* if no rates are given set it back to the defaults */
8735 if (!info->attrs[NL80211_ATTR_TX_RATES])
8736 goto out;
8737
13ae75b1
JM		 8738 /*
8739 * The nested attribute uses enum nl80211_band as the index. This maps
57fbcce3 8740 * directly to the enum nl80211_band values used in cfg80211.
13ae75b1 8741 */
24db78c0 8742 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8743 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
57fbcce3 8744 enum nl80211_band band = nla_type(tx_rates);
ae811e21
JB		 8745 int err;
8746
57fbcce3 8747 if (band < 0 || band >= NUM_NL80211_BANDS)
4c476991 8748 return -EINVAL;
13ae75b1 8749 sband = rdev->wiphy.bands[band];
4c476991
JB		 8750 if (sband == NULL)
8751 return -EINVAL;
ae811e21
JB		 8752 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8753 nla_len(tx_rates), nl80211_txattr_policy);
8754 if (err)
8755 return err;
13ae75b1
JM		 8756 if (tb[NL80211_TXRATE_LEGACY]) {
8757 mask.control[band].legacy = rateset_to_mask(
8758 sband,
8759 nla_data(tb[NL80211_TXRATE_LEGACY]),
8760 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8761 if ((mask.control[band].legacy == 0) &&
8762 nla_len(tb[NL80211_TXRATE_LEGACY]))
8763 return -EINVAL;
24db78c0 8764 }
d1e33e65 8765 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8766 if (!ht_rateset_to_mask(
8767 sband,
d1e33e65
JD		 8768 nla_data(tb[NL80211_TXRATE_HT]),
8769 nla_len(tb[NL80211_TXRATE_HT]),
8770 mask.control[band].ht_mcs))
24db78c0
SW		 8771 return -EINVAL;
8772 }
204e35a9
JD		 8773 if (tb[NL80211_TXRATE_VHT]) {
8774 if (!vht_set_mcs_mask(
8775 sband,
8776 nla_data(tb[NL80211_TXRATE_VHT]),
8777 mask.control[band].vht_mcs))
8778 return -EINVAL;
8779 }
0b9323f6
JD		 8780 if (tb[NL80211_TXRATE_GI]) {
8781 mask.control[band].gi =
8782 nla_get_u8(tb[NL80211_TXRATE_GI]);
8783 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8784 return -EINVAL;
8785 }
24db78c0
SW		 8786
8787 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8788 /* don't allow empty legacy rates if HT or VHT
8789 * are not even supported.
8790 */
8791 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8792 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8793 return -EINVAL;
8794
8795 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8796 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8797 goto out;
8798
8799 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8800 if (mask.control[band].vht_mcs[i])
8801 goto out;
24db78c0
SW		 8802
8803 /* legacy and mcs rates may not be both empty */
204e35a9 8804 return -EINVAL;
13ae75b1
JM		 8805 }
8806 }
8807
b9243ab0 8808out:
e35e4d28 8809 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8810}
8811
2e161f78 8812static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8813{
4c476991 8814 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8815 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8816 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8817
8818 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8819 return -EINVAL;
8820
2e161f78
JB		 8821 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8822 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8823
71bbc994
JB		 8824 switch (wdev->iftype) {
8825 case NL80211_IFTYPE_STATION:
8826 case NL80211_IFTYPE_ADHOC:
8827 case NL80211_IFTYPE_P2P_CLIENT:
8828 case NL80211_IFTYPE_AP:
8829 case NL80211_IFTYPE_AP_VLAN:
8830 case NL80211_IFTYPE_MESH_POINT:
8831 case NL80211_IFTYPE_P2P_GO:
98104fde 8832 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8833 break;
8834 default:
4c476991 8835 return -EOPNOTSUPP;
71bbc994 8836 }
026331c4
JM		 8837
8838 /* not much point in registering if we can't reply */
4c476991
JB		 8839 if (!rdev->ops->mgmt_tx)
8840 return -EOPNOTSUPP;
026331c4 8841
15e47304 8842 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8843 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8844 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8845}
8846
2e161f78 8847static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8848{
4c476991 8849 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8850 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8851 struct cfg80211_chan_def chandef;
026331c4 8852 int err;
d64d373f 8853 void *hdr = NULL;
026331c4 8854 u64 cookie;
e247bd90 8855 struct sk_buff *msg = NULL;
b176e629
AO		 8856 struct cfg80211_mgmt_tx_params params = {
8857 .dont_wait_for_ack =
8858 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8859 };
026331c4 8860
683b6d3b 8861 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8862 return -EINVAL;
8863
4c476991
JB		 8864 if (!rdev->ops->mgmt_tx)
8865 return -EOPNOTSUPP;
026331c4 8866
71bbc994 8867 switch (wdev->iftype) {
ea141b75
AQ		 8868 case NL80211_IFTYPE_P2P_DEVICE:
8869 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8870 return -EINVAL;
71bbc994
JB		 8871 case NL80211_IFTYPE_STATION:
8872 case NL80211_IFTYPE_ADHOC:
8873 case NL80211_IFTYPE_P2P_CLIENT:
8874 case NL80211_IFTYPE_AP:
8875 case NL80211_IFTYPE_AP_VLAN:
8876 case NL80211_IFTYPE_MESH_POINT:
8877 case NL80211_IFTYPE_P2P_GO:
8878 break;
8879 default:
4c476991 8880 return -EOPNOTSUPP;
71bbc994 8881 }
026331c4 8882
f7ca38df 8883 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8884 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8885 return -EINVAL;
b176e629 8886 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8887
8888 /*
8889 * We should wait on the channel for at least a minimum amount
8890 * of time (10ms) but no longer than the driver supports.
8891 */
b176e629
AO		 8892 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8893 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc 8894 return -EINVAL;
f7ca38df
JB		 8895 }
8896
b176e629 8897 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8898
b176e629 8899 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8900 return -EINVAL;
8901
b176e629 8902 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8903
ea141b75
AQ		 8904 /* get the channel if any has been specified, otherwise pass NULL to
8905 * the driver. The latter will use the current one
8906 */
8907 chandef.chan = NULL;
8908 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8909 err = nl80211_parse_chandef(rdev, info, &chandef);
8910 if (err)
8911 return err;
8912 }
8913
b176e629 8914 if (!chandef.chan && params.offchan)
ea141b75 8915 return -EINVAL;
026331c4 8916
34d22ce2
AO		 8917 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8918 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8919
8920 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8921 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8922 int i;
8923
8924 if (len % sizeof(u16))
8925 return -EINVAL;
8926
8927 params.n_csa_offsets = len / sizeof(u16);
8928 params.csa_offsets =
8929 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8930
8931 /* check that all the offsets fit the frame */
8932 for (i = 0; i < params.n_csa_offsets; i++) {
8933 if (params.csa_offsets[i] >= params.len)
8934 return -EINVAL;
8935 }
8936 }
8937
b176e629 8938 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8939 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8940 if (!msg)
8941 return -ENOMEM;
026331c4 8942
15e47304 8943 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8944 NL80211_CMD_FRAME);
cb35fba3
DC		 8945 if (!hdr) {
8946 err = -ENOBUFS;
e247bd90
JB		 8947 goto free_msg;
8948 }
026331c4 8949 }
e247bd90 8950
b176e629
AO		 8951 params.chan = chandef.chan;
8952 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8953 if (err)
8954 goto free_msg;
8955
e247bd90 8956 if (msg) {
2dad624e
ND		 8957 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
8958 NL80211_ATTR_PAD))
9360ffd1 8959 goto nla_put_failure;
026331c4 8960
e247bd90
JB		 8961 genlmsg_end(msg, hdr);
8962 return genlmsg_reply(msg, info);
8963 }
8964
8965 return 0;
026331c4
JM		 8966
8967 nla_put_failure:
8968 err = -ENOBUFS;
8969 free_msg:
8970 nlmsg_free(msg);
026331c4
JM		 8971 return err;
8972}
8973
f7ca38df
JB		 8974static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8975{
8976 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8977 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8978 u64 cookie;
8979
8980 if (!info->attrs[NL80211_ATTR_COOKIE])
8981 return -EINVAL;
8982
8983 if (!rdev->ops->mgmt_tx_cancel_wait)
8984 return -EOPNOTSUPP;
8985
71bbc994
JB		 8986 switch (wdev->iftype) {
8987 case NL80211_IFTYPE_STATION:
8988 case NL80211_IFTYPE_ADHOC:
8989 case NL80211_IFTYPE_P2P_CLIENT:
8990 case NL80211_IFTYPE_AP:
8991 case NL80211_IFTYPE_AP_VLAN:
8992 case NL80211_IFTYPE_P2P_GO:
98104fde 8993 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8994 break;
8995 default:
f7ca38df 8996 return -EOPNOTSUPP;
71bbc994 8997 }
f7ca38df
JB		 8998
8999 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9000
e35e4d28 9001 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 9002}
9003
ffb9eb3d
KV		 9004static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9005{
4c476991 9006 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 9007 struct wireless_dev *wdev;
4c476991 9008 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9009 u8 ps_state;
9010 bool state;
9011 int err;
9012
4c476991
JB		 9013 if (!info->attrs[NL80211_ATTR_PS_STATE])
9014 return -EINVAL;
ffb9eb3d
KV		 9015
9016 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9017
4c476991
JB		 9018 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9019 return -EINVAL;
ffb9eb3d
KV		 9020
9021 wdev = dev->ieee80211_ptr;
9022
4c476991
JB		 9023 if (!rdev->ops->set_power_mgmt)
9024 return -EOPNOTSUPP;
ffb9eb3d
KV		 9025
9026 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9027
9028 if (state == wdev->ps)
4c476991 9029 return 0;
ffb9eb3d 9030
e35e4d28 9031 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 9032 if (!err)
9033 wdev->ps = state;
ffb9eb3d
KV		 9034 return err;
9035}
9036
9037static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9038{
4c476991 9039 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 9040 enum nl80211_ps_state ps_state;
9041 struct wireless_dev *wdev;
4c476991 9042 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 9043 struct sk_buff *msg;
9044 void *hdr;
9045 int err;
9046
ffb9eb3d
KV		 9047 wdev = dev->ieee80211_ptr;
9048
4c476991
JB		 9049 if (!rdev->ops->set_power_mgmt)
9050 return -EOPNOTSUPP;
ffb9eb3d
KV		 9051
9052 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 9053 if (!msg)
9054 return -ENOMEM;
ffb9eb3d 9055
15e47304 9056 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 9057 NL80211_CMD_GET_POWER_SAVE);
9058 if (!hdr) {
4c476991 9059 err = -ENOBUFS;
ffb9eb3d
KV		 9060 goto free_msg;
9061 }
9062
9063 if (wdev->ps)
9064 ps_state = NL80211_PS_ENABLED;
9065 else
9066 ps_state = NL80211_PS_DISABLED;
9067
9360ffd1
DM		 9068 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9069 goto nla_put_failure;
ffb9eb3d
KV		 9070
9071 genlmsg_end(msg, hdr);
4c476991 9072 return genlmsg_reply(msg, info);
ffb9eb3d 9073
4c476991 9074 nla_put_failure:
ffb9eb3d 9075 err = -ENOBUFS;
4c476991 9076 free_msg:
ffb9eb3d 9077 nlmsg_free(msg);
ffb9eb3d
KV		 9078 return err;
9079}
9080
94e860f1
JB		 9081static const struct nla_policy
9082nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 9083 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
9084 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9085 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 9086 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9087 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9088 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 9089};
9090
84f10708 9091static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 9092 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 9093{
9094 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 9095 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9096 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 9097
d9d8b019 9098 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 9099 return -EINVAL;
9100
84f10708
TP		 9101 if (!rdev->ops->set_cqm_txe_config)
9102 return -EOPNOTSUPP;
9103
9104 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9105 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9106 return -EOPNOTSUPP;
9107
e35e4d28 9108 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 9109}
9110
d6dc1a38
JO		 9111static int nl80211_set_cqm_rssi(struct genl_info *info,
9112 s32 threshold, u32 hysteresis)
9113{
4c476991 9114 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 9115 struct net_device *dev = info->user_ptr[1];
1da5fcc8 9116 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 9117
9118 if (threshold > 0)
9119 return -EINVAL;
9120
1da5fcc8
JB		 9121 /* disabling - hysteresis should also be zero then */
9122 if (threshold == 0)
9123 hysteresis = 0;
d6dc1a38 9124
4c476991
JB		 9125 if (!rdev->ops->set_cqm_rssi_config)
9126 return -EOPNOTSUPP;
d6dc1a38 9127
074ac8df 9128 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 9129 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9130 return -EOPNOTSUPP;
d6dc1a38 9131
e35e4d28 9132 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 9133}
9134
9135static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9136{
9137 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9138 struct nlattr *cqm;
9139 int err;
9140
9141 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 9142 if (!cqm)
9143 return -EINVAL;
d6dc1a38
JO		 9144
9145 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
9146 nl80211_attr_cqm_policy);
9147 if (err)
1da5fcc8 9148 return err;
d6dc1a38
JO		 9149
9150 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9151 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 9152 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9153 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 9154
1da5fcc8
JB		 9155 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
9156 }
9157
9158 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9159 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9160 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9161 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9162 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9163 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9164
9165 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9166 }
9167
9168 return -EINVAL;
d6dc1a38
JO		 9169}
9170
6e0bd6c3
RL		 9171static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9172{
9173 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9174 struct net_device *dev = info->user_ptr[1];
9175 struct ocb_setup setup = {};
9176 int err;
9177
9178 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9179 if (err)
9180 return err;
9181
9182 return cfg80211_join_ocb(rdev, dev, &setup);
9183}
9184
9185static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9186{
9187 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9188 struct net_device *dev = info->user_ptr[1];
9189
9190 return cfg80211_leave_ocb(rdev, dev);
9191}
9192
29cbe68c
JB		 9193static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9194{
9195 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9196 struct net_device *dev = info->user_ptr[1];
9197 struct mesh_config cfg;
c80d545d 9198 struct mesh_setup setup;
29cbe68c
JB		 9199 int err;
9200
9201 /* start with default */
9202 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 9203 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 9204
24bdd9f4 9205 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 9206 /* and parse parameters if given */
24bdd9f4 9207 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 9208 if (err)
9209 return err;
9210 }
9211
9212 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9213 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9214 return -EINVAL;
9215
c80d545d
JC		 9216 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9217 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9218
4bb62344
CYY		 9219 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9220 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9221 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9222 return -EINVAL;
9223
9bdbf04d
MP		 9224 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9225 setup.beacon_interval =
9226 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
9227 if (setup.beacon_interval < 10 ||
9228 setup.beacon_interval > 10000)
9229 return -EINVAL;
9230 }
9231
9232 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9233 setup.dtim_period =
9234 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9235 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9236 return -EINVAL;
9237 }
9238
c80d545d
JC		 9239 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9240 /* parse additional setup parameters if given */
9241 err = nl80211_parse_mesh_setup(info, &setup);
9242 if (err)
9243 return err;
9244 }
9245
d37bb18a
TP		 9246 if (setup.user_mpm)
9247 cfg.auto_open_plinks = false;
9248
cc1d2806 9249 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 9250 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9251 if (err)
9252 return err;
cc1d2806
JB		 9253 } else {
9254 /* cfg80211_join_mesh() will sort it out */
683b6d3b 9255 setup.chandef.chan = NULL;
cc1d2806
JB		 9256 }
9257
ffb3cf30
AN		 9258 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9259 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9260 int n_rates =
9261 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9262 struct ieee80211_supported_band *sband;
9263
9264 if (!setup.chandef.chan)
9265 return -EINVAL;
9266
9267 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9268
9269 err = ieee80211_get_ratemask(sband, rates, n_rates,
9270 &setup.basic_rates);
9271 if (err)
9272 return err;
9273 }
9274
c80d545d 9275 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 9276}
9277
9278static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
9279{
9280 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9281 struct net_device *dev = info->user_ptr[1];
9282
9283 return cfg80211_leave_mesh(rdev, dev);
9284}
9285
dfb89c56 9286#ifdef CONFIG_PM
bb92d199
AK		 9287static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
9288 struct cfg80211_registered_device *rdev)
9289{
6abb9cb9 9290 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 9291 struct nlattr *nl_pats, *nl_pat;
9292 int i, pat_len;
9293
6abb9cb9 9294 if (!wowlan->n_patterns)
bb92d199
AK		 9295 return 0;
9296
9297 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
9298 if (!nl_pats)
9299 return -ENOBUFS;
9300
6abb9cb9 9301 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 9302 nl_pat = nla_nest_start(msg, i + 1);
9303 if (!nl_pat)
9304 return -ENOBUFS;
6abb9cb9 9305 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 9306 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 9307 wowlan->patterns[i].mask) ||
50ac6607
AK		 9308 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9309 wowlan->patterns[i].pattern) ||
9310 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 9311 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 9312 return -ENOBUFS;
9313 nla_nest_end(msg, nl_pat);
9314 }
9315 nla_nest_end(msg, nl_pats);
9316
9317 return 0;
9318}
9319
2a0e047e
JB		 9320static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9321 struct cfg80211_wowlan_tcp *tcp)
9322{
9323 struct nlattr *nl_tcp;
9324
9325 if (!tcp)
9326 return 0;
9327
9328 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9329 if (!nl_tcp)
9330 return -ENOBUFS;
9331
930345ea
JB		 9332 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9333 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 9334 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9335 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9336 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9337 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9338 tcp->payload_len, tcp->payload) ||
9339 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9340 tcp->data_interval) ||
9341 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9342 tcp->wake_len, tcp->wake_data) ||
9343 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9344 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9345 return -ENOBUFS;
9346
9347 if (tcp->payload_seq.len &&
9348 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9349 sizeof(tcp->payload_seq), &tcp->payload_seq))
9350 return -ENOBUFS;
9351
9352 if (tcp->payload_tok.len &&
9353 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9354 sizeof(tcp->payload_tok) + tcp->tokens_size,
9355 &tcp->payload_tok))
9356 return -ENOBUFS;
9357
e248ad30
JB		 9358 nla_nest_end(msg, nl_tcp);
9359
2a0e047e
JB		 9360 return 0;
9361}
9362
75453ccb
LC		 9363static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9364 struct cfg80211_sched_scan_request *req)
9365{
3b06d277 9366 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 9367 int i;
9368
9369 if (!req)
9370 return 0;
9371
9372 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9373 if (!nd)
9374 return -ENOBUFS;
9375
3b06d277
AS		 9376 if (req->n_scan_plans == 1 &&
9377 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9378 req->scan_plans[0].interval * 1000))
75453ccb
LC		 9379 return -ENOBUFS;
9380
21fea567
LC		 9381 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9382 return -ENOBUFS;
9383
75453ccb
LC		 9384 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9385 if (!freqs)
9386 return -ENOBUFS;
9387
9388 for (i = 0; i < req->n_channels; i++)
9389 nla_put_u32(msg, i, req->channels[i]->center_freq);
9390
9391 nla_nest_end(msg, freqs);
9392
9393 if (req->n_match_sets) {
9394 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9395 for (i = 0; i < req->n_match_sets; i++) {
9396 match = nla_nest_start(msg, i);
9397 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9398 req->match_sets[i].ssid.ssid_len,
9399 req->match_sets[i].ssid.ssid);
9400 nla_nest_end(msg, match);
9401 }
9402 nla_nest_end(msg, matches);
9403 }
9404
3b06d277
AS		 9405 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9406 if (!scan_plans)
9407 return -ENOBUFS;
9408
9409 for (i = 0; i < req->n_scan_plans; i++) {
9410 scan_plan = nla_nest_start(msg, i + 1);
9411 if (!scan_plan ||
9412 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9413 req->scan_plans[i].interval) ||
9414 (req->scan_plans[i].iterations &&
9415 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9416 req->scan_plans[i].iterations)))
9417 return -ENOBUFS;
9418 nla_nest_end(msg, scan_plan);
9419 }
9420 nla_nest_end(msg, scan_plans);
9421
75453ccb
LC		 9422 nla_nest_end(msg, nd);
9423
9424 return 0;
9425}
9426
ff1b6e69
JB		 9427static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9428{
9429 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9430 struct sk_buff *msg;
9431 void *hdr;
2a0e047e 9432 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 9433
964dc9e2 9434 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 9435 return -EOPNOTSUPP;
9436
6abb9cb9 9437 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 9438 /* adjust size to have room for all the data */
6abb9cb9
JB		 9439 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9440 rdev->wiphy.wowlan_config->tcp->payload_len +
9441 rdev->wiphy.wowlan_config->tcp->wake_len +
9442 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 9443 }
9444
9445 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 9446 if (!msg)
9447 return -ENOMEM;
9448
15e47304 9449 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 9450 NL80211_CMD_GET_WOWLAN);
9451 if (!hdr)
9452 goto nla_put_failure;
9453
6abb9cb9 9454 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 9455 struct nlattr *nl_wowlan;
9456
9457 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9458 if (!nl_wowlan)
9459 goto nla_put_failure;
9460
6abb9cb9 9461 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 9462 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 9463 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 9464 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 9465 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 9466 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 9467 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 9468 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 9469 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 9470 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 9471 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 9472 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 9473 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 9474 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9475 goto nla_put_failure;
2a0e047e 9476
bb92d199
AK		 9477 if (nl80211_send_wowlan_patterns(msg, rdev))
9478 goto nla_put_failure;
2a0e047e 9479
6abb9cb9
JB		 9480 if (nl80211_send_wowlan_tcp(msg,
9481 rdev->wiphy.wowlan_config->tcp))
2a0e047e 9482 goto nla_put_failure;
75453ccb
LC		 9483
9484 if (nl80211_send_wowlan_nd(
9485 msg,
9486 rdev->wiphy.wowlan_config->nd_config))
9487 goto nla_put_failure;
2a0e047e 9488
ff1b6e69
JB		 9489 nla_nest_end(msg, nl_wowlan);
9490 }
9491
9492 genlmsg_end(msg, hdr);
9493 return genlmsg_reply(msg, info);
9494
9495nla_put_failure:
9496 nlmsg_free(msg);
9497 return -ENOBUFS;
9498}
9499
2a0e047e
JB		 9500static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9501 struct nlattr *attr,
9502 struct cfg80211_wowlan *trig)
9503{
9504 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9505 struct cfg80211_wowlan_tcp *cfg;
9506 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9507 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9508 u32 size;
9509 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9510 int err, port;
9511
964dc9e2 9512 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 9513 return -EINVAL;
9514
9515 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9516 nla_data(attr), nla_len(attr),
9517 nl80211_wowlan_tcp_policy);
9518 if (err)
9519 return err;
9520
9521 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9522 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9523 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9524 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9525 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9526 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9527 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9528 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9529 return -EINVAL;
9530
9531 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 9532 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 9533 return -EINVAL;
9534
9535 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 9536 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 9537 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 9538 return -EINVAL;
9539
9540 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 9541 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 9542 return -EINVAL;
9543
9544 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9545 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9546 return -EINVAL;
9547
9548 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9549 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9550
9551 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9552 tokens_size = tokln - sizeof(*tok);
9553
9554 if (!tok->len || tokens_size % tok->len)
9555 return -EINVAL;
964dc9e2 9556 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9557 return -EINVAL;
964dc9e2 9558 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9559 return -EINVAL;
964dc9e2 9560 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9561 return -EINVAL;
964dc9e2 9562 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9563 return -EINVAL;
9564 if (tok->offset + tok->len > data_size)
9565 return -EINVAL;
9566 }
9567
9568 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9569 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9570 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9571 return -EINVAL;
9572 if (seq->len == 0 || seq->len > 4)
9573 return -EINVAL;
9574 if (seq->len + seq->offset > data_size)
9575 return -EINVAL;
9576 }
9577
9578 size = sizeof(*cfg);
9579 size += data_size;
9580 size += wake_size + wake_mask_size;
9581 size += tokens_size;
9582
9583 cfg = kzalloc(size, GFP_KERNEL);
9584 if (!cfg)
9585 return -ENOMEM;
67b61f6c
JB		 9586 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9587 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 9588 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9589 ETH_ALEN);
9590 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9591 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9592 else
9593 port = 0;
9594#ifdef CONFIG_INET
9595 /* allocate a socket and port for it and use it */
9596 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9597 IPPROTO_TCP, &cfg->sock, 1);
9598 if (err) {
9599 kfree(cfg);
9600 return err;
9601 }
9602 if (inet_csk_get_port(cfg->sock->sk, port)) {
9603 sock_release(cfg->sock);
9604 kfree(cfg);
9605 return -EADDRINUSE;
9606 }
9607 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9608#else
9609 if (!port) {
9610 kfree(cfg);
9611 return -EINVAL;
9612 }
9613 cfg->src_port = port;
9614#endif
9615
9616 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9617 cfg->payload_len = data_size;
9618 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9619 memcpy((void *)cfg->payload,
9620 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9621 data_size);
9622 if (seq)
9623 cfg->payload_seq = *seq;
9624 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9625 cfg->wake_len = wake_size;
9626 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9627 memcpy((void *)cfg->wake_data,
9628 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9629 wake_size);
9630 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9631 data_size + wake_size;
9632 memcpy((void *)cfg->wake_mask,
9633 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9634 wake_mask_size);
9635 if (tok) {
9636 cfg->tokens_size = tokens_size;
9637 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9638 }
9639
9640 trig->tcp = cfg;
9641
9642 return 0;
9643}
9644
8cd4d456
LC		 9645static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9646 const struct wiphy_wowlan_support *wowlan,
9647 struct nlattr *attr,
9648 struct cfg80211_wowlan *trig)
9649{
9650 struct nlattr **tb;
9651 int err;
9652
9653 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9654 if (!tb)
9655 return -ENOMEM;
9656
9657 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9658 err = -EOPNOTSUPP;
9659 goto out;
9660 }
9661
9662 err = nla_parse(tb, NL80211_ATTR_MAX,
9663 nla_data(attr), nla_len(attr),
9664 nl80211_policy);
9665 if (err)
9666 goto out;
9667
ad2b26ab 9668 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9669 err = PTR_ERR_OR_ZERO(trig->nd_config);
9670 if (err)
9671 trig->nd_config = NULL;
9672
9673out:
9674 kfree(tb);
9675 return err;
9676}
9677
ff1b6e69
JB		 9678static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9679{
9680 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9681 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9682 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9683 struct cfg80211_wowlan *ntrig;
964dc9e2 9684 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9685 int err, i;
6abb9cb9 9686 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 9687 bool regular = false;
ff1b6e69 9688
964dc9e2 9689 if (!wowlan)
ff1b6e69
JB		 9690 return -EOPNOTSUPP;
9691
ae33bd81
JB		 9692 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9693 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9694 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9695 goto set_wakeup;
9696 }
ff1b6e69
JB		 9697
9698 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9699 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9700 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9701 nl80211_wowlan_policy);
9702 if (err)
9703 return err;
9704
9705 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9706 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9707 return -EINVAL;
9708 new_triggers.any = true;
9709 }
9710
9711 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9712 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9713 return -EINVAL;
9714 new_triggers.disconnect = true;
98fc4386 9715 regular = true;
ff1b6e69
JB		 9716 }
9717
9718 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9719 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9720 return -EINVAL;
9721 new_triggers.magic_pkt = true;
98fc4386 9722 regular = true;
ff1b6e69
JB		 9723 }
9724
77dbbb13
JB		 9725 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9726 return -EINVAL;
9727
9728 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9729 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9730 return -EINVAL;
9731 new_triggers.gtk_rekey_failure = true;
98fc4386 9732 regular = true;
77dbbb13
JB		 9733 }
9734
9735 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9736 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9737 return -EINVAL;
9738 new_triggers.eap_identity_req = true;
98fc4386 9739 regular = true;
77dbbb13
JB		 9740 }
9741
9742 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9743 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9744 return -EINVAL;
9745 new_triggers.four_way_handshake = true;
98fc4386 9746 regular = true;
77dbbb13
JB		 9747 }
9748
9749 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9750 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9751 return -EINVAL;
9752 new_triggers.rfkill_release = true;
98fc4386 9753 regular = true;
77dbbb13
JB		 9754 }
9755
ff1b6e69
JB		 9756 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9757 struct nlattr *pat;
9758 int n_patterns = 0;
bb92d199 9759 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9760 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 9761
98fc4386
JB		 9762 regular = true;
9763
ff1b6e69
JB		 9764 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9765 rem)
9766 n_patterns++;
9767 if (n_patterns > wowlan->n_patterns)
9768 return -EINVAL;
9769
9770 new_triggers.patterns = kcalloc(n_patterns,
9771 sizeof(new_triggers.patterns[0]),
9772 GFP_KERNEL);
9773 if (!new_triggers.patterns)
9774 return -ENOMEM;
9775
9776 new_triggers.n_patterns = n_patterns;
9777 i = 0;
9778
9779 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9780 rem) {
922bd80f
JB		 9781 u8 *mask_pat;
9782
50ac6607
AK		 9783 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9784 nla_len(pat), NULL);
ff1b6e69 9785 err = -EINVAL;
50ac6607
AK		 9786 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9787 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9788 goto error;
50ac6607 9789 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9790 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9791 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9792 goto error;
9793 if (pat_len > wowlan->pattern_max_len ||
9794 pat_len < wowlan->pattern_min_len)
9795 goto error;
9796
50ac6607 9797 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9798 pkt_offset = 0;
9799 else
9800 pkt_offset = nla_get_u32(
50ac6607 9801 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9802 if (pkt_offset > wowlan->max_pkt_offset)
9803 goto error;
9804 new_triggers.patterns[i].pkt_offset = pkt_offset;
9805
922bd80f
JB		 9806 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9807 if (!mask_pat) {
ff1b6e69
JB		 9808 err = -ENOMEM;
9809 goto error;
9810 }
922bd80f
JB		 9811 new_triggers.patterns[i].mask = mask_pat;
9812 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9813 mask_len);
922bd80f
JB		 9814 mask_pat += mask_len;
9815 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9816 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9817 memcpy(mask_pat,
50ac6607 9818 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9819 pat_len);
9820 i++;
9821 }
9822 }
9823
2a0e047e 9824 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 9825 regular = true;
2a0e047e
JB		 9826 err = nl80211_parse_wowlan_tcp(
9827 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9828 &new_triggers);
9829 if (err)
9830 goto error;
9831 }
9832
8cd4d456 9833 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 9834 regular = true;
8cd4d456
LC		 9835 err = nl80211_parse_wowlan_nd(
9836 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9837 &new_triggers);
9838 if (err)
9839 goto error;
9840 }
9841
98fc4386
JB		 9842 /* The 'any' trigger means the device continues operating more or less
9843 * as in its normal operation mode and wakes up the host on most of the
9844 * normal interrupts (like packet RX, ...)
9845 * It therefore makes little sense to combine with the more constrained
9846 * wakeup trigger modes.
9847 */
9848 if (new_triggers.any && regular) {
9849 err = -EINVAL;
9850 goto error;
9851 }
9852
ae33bd81
JB		 9853 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9854 if (!ntrig) {
9855 err = -ENOMEM;
9856 goto error;
ff1b6e69 9857 }
ae33bd81 9858 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9859 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9860
ae33bd81 9861 set_wakeup:
6abb9cb9
JB		 9862 if (rdev->ops->set_wakeup &&
9863 prev_enabled != !!rdev->wiphy.wowlan_config)
9864 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9865
ff1b6e69
JB		 9866 return 0;
9867 error:
9868 for (i = 0; i < new_triggers.n_patterns; i++)
9869 kfree(new_triggers.patterns[i].mask);
9870 kfree(new_triggers.patterns);
2a0e047e
JB		 9871 if (new_triggers.tcp && new_triggers.tcp->sock)
9872 sock_release(new_triggers.tcp->sock);
9873 kfree(new_triggers.tcp);
e5dbe070 9874 kfree(new_triggers.nd_config);
ff1b6e69
JB		 9875 return err;
9876}
dfb89c56 9877#endif
ff1b6e69 9878
be29b99a
AK		 9879static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9880 struct cfg80211_registered_device *rdev)
9881{
9882 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9883 int i, j, pat_len;
9884 struct cfg80211_coalesce_rules *rule;
9885
9886 if (!rdev->coalesce->n_rules)
9887 return 0;
9888
9889 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9890 if (!nl_rules)
9891 return -ENOBUFS;
9892
9893 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9894 nl_rule = nla_nest_start(msg, i + 1);
9895 if (!nl_rule)
9896 return -ENOBUFS;
9897
9898 rule = &rdev->coalesce->rules[i];
9899 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9900 rule->delay))
9901 return -ENOBUFS;
9902
9903 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9904 rule->condition))
9905 return -ENOBUFS;
9906
9907 nl_pats = nla_nest_start(msg,
9908 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9909 if (!nl_pats)
9910 return -ENOBUFS;
9911
9912 for (j = 0; j < rule->n_patterns; j++) {
9913 nl_pat = nla_nest_start(msg, j + 1);
9914 if (!nl_pat)
9915 return -ENOBUFS;
9916 pat_len = rule->patterns[j].pattern_len;
9917 if (nla_put(msg, NL80211_PKTPAT_MASK,
9918 DIV_ROUND_UP(pat_len, 8),
9919 rule->patterns[j].mask) ||
9920 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9921 rule->patterns[j].pattern) ||
9922 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9923 rule->patterns[j].pkt_offset))
9924 return -ENOBUFS;
9925 nla_nest_end(msg, nl_pat);
9926 }
9927 nla_nest_end(msg, nl_pats);
9928 nla_nest_end(msg, nl_rule);
9929 }
9930 nla_nest_end(msg, nl_rules);
9931
9932 return 0;
9933}
9934
9935static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9936{
9937 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9938 struct sk_buff *msg;
9939 void *hdr;
9940
9941 if (!rdev->wiphy.coalesce)
9942 return -EOPNOTSUPP;
9943
9944 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9945 if (!msg)
9946 return -ENOMEM;
9947
9948 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9949 NL80211_CMD_GET_COALESCE);
9950 if (!hdr)
9951 goto nla_put_failure;
9952
9953 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9954 goto nla_put_failure;
9955
9956 genlmsg_end(msg, hdr);
9957 return genlmsg_reply(msg, info);
9958
9959nla_put_failure:
9960 nlmsg_free(msg);
9961 return -ENOBUFS;
9962}
9963
9964void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9965{
9966 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9967 int i, j;
9968 struct cfg80211_coalesce_rules *rule;
9969
9970 if (!coalesce)
9971 return;
9972
9973 for (i = 0; i < coalesce->n_rules; i++) {
9974 rule = &coalesce->rules[i];
9975 for (j = 0; j < rule->n_patterns; j++)
9976 kfree(rule->patterns[j].mask);
9977 kfree(rule->patterns);
9978 }
9979 kfree(coalesce->rules);
9980 kfree(coalesce);
9981 rdev->coalesce = NULL;
9982}
9983
9984static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9985 struct nlattr *rule,
9986 struct cfg80211_coalesce_rules *new_rule)
9987{
9988 int err, i;
9989 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9990 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9991 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9992 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9993
9994 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9995 nla_len(rule), nl80211_coalesce_policy);
9996 if (err)
9997 return err;
9998
9999 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10000 new_rule->delay =
10001 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10002 if (new_rule->delay > coalesce->max_delay)
10003 return -EINVAL;
10004
10005 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10006 new_rule->condition =
10007 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10008 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10009 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10010 return -EINVAL;
10011
10012 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10013 return -EINVAL;
10014
10015 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10016 rem)
10017 n_patterns++;
10018 if (n_patterns > coalesce->n_patterns)
10019 return -EINVAL;
10020
10021 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10022 GFP_KERNEL);
10023 if (!new_rule->patterns)
10024 return -ENOMEM;
10025
10026 new_rule->n_patterns = n_patterns;
10027 i = 0;
10028
10029 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10030 rem) {
922bd80f
JB		 10031 u8 *mask_pat;
10032
be29b99a
AK		 10033 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
10034 nla_len(pat), NULL);
10035 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10036 !pat_tb[NL80211_PKTPAT_PATTERN])
10037 return -EINVAL;
10038 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10039 mask_len = DIV_ROUND_UP(pat_len, 8);
10040 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10041 return -EINVAL;
10042 if (pat_len > coalesce->pattern_max_len ||
10043 pat_len < coalesce->pattern_min_len)
10044 return -EINVAL;
10045
10046 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10047 pkt_offset = 0;
10048 else
10049 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10050 if (pkt_offset > coalesce->max_pkt_offset)
10051 return -EINVAL;
10052 new_rule->patterns[i].pkt_offset = pkt_offset;
10053
922bd80f
JB		 10054 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10055 if (!mask_pat)
be29b99a 10056 return -ENOMEM;
922bd80f
JB		 10057
10058 new_rule->patterns[i].mask = mask_pat;
10059 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10060 mask_len);
10061
10062 mask_pat += mask_len;
10063 new_rule->patterns[i].pattern = mask_pat;
be29b99a 10064 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 10065 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10066 pat_len);
be29b99a
AK		 10067 i++;
10068 }
10069
10070 return 0;
10071}
10072
10073static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10074{
10075 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10076 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10077 struct cfg80211_coalesce new_coalesce = {};
10078 struct cfg80211_coalesce *n_coalesce;
10079 int err, rem_rule, n_rules = 0, i, j;
10080 struct nlattr *rule;
10081 struct cfg80211_coalesce_rules *tmp_rule;
10082
10083 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10084 return -EOPNOTSUPP;
10085
10086 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10087 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 10088 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 10089 return 0;
10090 }
10091
10092 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10093 rem_rule)
10094 n_rules++;
10095 if (n_rules > coalesce->n_rules)
10096 return -EINVAL;
10097
10098 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10099 GFP_KERNEL);
10100 if (!new_coalesce.rules)
10101 return -ENOMEM;
10102
10103 new_coalesce.n_rules = n_rules;
10104 i = 0;
10105
10106 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10107 rem_rule) {
10108 err = nl80211_parse_coalesce_rule(rdev, rule,
10109 &new_coalesce.rules[i]);
10110 if (err)
10111 goto error;
10112
10113 i++;
10114 }
10115
a1056b1b 10116 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 10117 if (err)
10118 goto error;
10119
10120 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10121 if (!n_coalesce) {
10122 err = -ENOMEM;
10123 goto error;
10124 }
10125 cfg80211_rdev_free_coalesce(rdev);
10126 rdev->coalesce = n_coalesce;
10127
10128 return 0;
10129error:
10130 for (i = 0; i < new_coalesce.n_rules; i++) {
10131 tmp_rule = &new_coalesce.rules[i];
10132 for (j = 0; j < tmp_rule->n_patterns; j++)
10133 kfree(tmp_rule->patterns[j].mask);
10134 kfree(tmp_rule->patterns);
10135 }
10136 kfree(new_coalesce.rules);
10137
10138 return err;
10139}
10140
e5497d76
JB		 10141static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10142{
10143 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10144 struct net_device *dev = info->user_ptr[1];
10145 struct wireless_dev *wdev = dev->ieee80211_ptr;
10146 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10147 struct cfg80211_gtk_rekey_data rekey_data;
10148 int err;
10149
10150 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10151 return -EINVAL;
10152
10153 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
10154 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
10155 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
10156 nl80211_rekey_policy);
10157 if (err)
10158 return err;
10159
10160 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10161 return -ERANGE;
10162 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10163 return -ERANGE;
10164 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10165 return -ERANGE;
10166
78f686ca
JB		 10167 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10168 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10169 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 10170
10171 wdev_lock(wdev);
10172 if (!wdev->current_bss) {
10173 err = -ENOTCONN;
10174 goto out;
10175 }
10176
10177 if (!rdev->ops->set_rekey_data) {
10178 err = -EOPNOTSUPP;
10179 goto out;
10180 }
10181
e35e4d28 10182 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 10183 out:
10184 wdev_unlock(wdev);
10185 return err;
10186}
10187
28946da7
JB		 10188static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10189 struct genl_info *info)
10190{
10191 struct net_device *dev = info->user_ptr[1];
10192 struct wireless_dev *wdev = dev->ieee80211_ptr;
10193
10194 if (wdev->iftype != NL80211_IFTYPE_AP &&
10195 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10196 return -EINVAL;
10197
15e47304 10198 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 10199 return -EBUSY;
10200
15e47304 10201 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 10202 return 0;
10203}
10204
7f6cf311
JB		 10205static int nl80211_probe_client(struct sk_buff *skb,
10206 struct genl_info *info)
10207{
10208 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10209 struct net_device *dev = info->user_ptr[1];
10210 struct wireless_dev *wdev = dev->ieee80211_ptr;
10211 struct sk_buff *msg;
10212 void *hdr;
10213 const u8 *addr;
10214 u64 cookie;
10215 int err;
10216
10217 if (wdev->iftype != NL80211_IFTYPE_AP &&
10218 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10219 return -EOPNOTSUPP;
10220
10221 if (!info->attrs[NL80211_ATTR_MAC])
10222 return -EINVAL;
10223
10224 if (!rdev->ops->probe_client)
10225 return -EOPNOTSUPP;
10226
10227 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10228 if (!msg)
10229 return -ENOMEM;
10230
15e47304 10231 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 10232 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 10233 if (!hdr) {
10234 err = -ENOBUFS;
7f6cf311
JB		 10235 goto free_msg;
10236 }
10237
10238 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10239
e35e4d28 10240 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 10241 if (err)
10242 goto free_msg;
10243
2dad624e
ND		 10244 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10245 NL80211_ATTR_PAD))
9360ffd1 10246 goto nla_put_failure;
7f6cf311
JB		 10247
10248 genlmsg_end(msg, hdr);
10249
10250 return genlmsg_reply(msg, info);
10251
10252 nla_put_failure:
10253 err = -ENOBUFS;
10254 free_msg:
10255 nlmsg_free(msg);
10256 return err;
10257}
10258
5e760230
JB		 10259static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
10260{
10261 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 10262 struct cfg80211_beacon_registration *reg, *nreg;
10263 int rv;
5e760230
JB		 10264
10265 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
10266 return -EOPNOTSUPP;
10267
37c73b5f
BG		 10268 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
10269 if (!nreg)
10270 return -ENOMEM;
10271
10272 /* First, check if already registered. */
10273 spin_lock_bh(&rdev->beacon_registrations_lock);
10274 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10275 if (reg->nlportid == info->snd_portid) {
10276 rv = -EALREADY;
10277 goto out_err;
10278 }
10279 }
10280 /* Add it to the list */
10281 nreg->nlportid = info->snd_portid;
10282 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 10283
37c73b5f 10284 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10285
10286 return 0;
37c73b5f
BG		 10287out_err:
10288 spin_unlock_bh(&rdev->beacon_registrations_lock);
10289 kfree(nreg);
10290 return rv;
5e760230
JB		 10291}
10292
98104fde
JB		 10293static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
10294{
10295 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10296 struct wireless_dev *wdev = info->user_ptr[1];
10297 int err;
10298
10299 if (!rdev->ops->start_p2p_device)
10300 return -EOPNOTSUPP;
10301
10302 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10303 return -EOPNOTSUPP;
10304
10305 if (wdev->p2p_started)
10306 return 0;
10307
b6a55015
LC		 10308 if (rfkill_blocked(rdev->rfkill))
10309 return -ERFKILL;
98104fde 10310
eeb126e9 10311 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 10312 if (err)
10313 return err;
10314
10315 wdev->p2p_started = true;
98104fde 10316 rdev->opencount++;
98104fde
JB		 10317
10318 return 0;
10319}
10320
10321static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10322{
10323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10324 struct wireless_dev *wdev = info->user_ptr[1];
10325
10326 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10327 return -EOPNOTSUPP;
10328
10329 if (!rdev->ops->stop_p2p_device)
10330 return -EOPNOTSUPP;
10331
f9f47529 10332 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 10333
10334 return 0;
10335}
10336
3713b4e3
JB		 10337static int nl80211_get_protocol_features(struct sk_buff *skb,
10338 struct genl_info *info)
10339{
10340 void *hdr;
10341 struct sk_buff *msg;
10342
10343 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10344 if (!msg)
10345 return -ENOMEM;
10346
10347 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10348 NL80211_CMD_GET_PROTOCOL_FEATURES);
10349 if (!hdr)
10350 goto nla_put_failure;
10351
10352 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
10353 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
10354 goto nla_put_failure;
10355
10356 genlmsg_end(msg, hdr);
10357 return genlmsg_reply(msg, info);
10358
10359 nla_put_failure:
10360 kfree_skb(msg);
10361 return -ENOBUFS;
10362}
10363
355199e0
JM		 10364static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
10365{
10366 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10367 struct cfg80211_update_ft_ies_params ft_params;
10368 struct net_device *dev = info->user_ptr[1];
10369
10370 if (!rdev->ops->update_ft_ies)
10371 return -EOPNOTSUPP;
10372
10373 if (!info->attrs[NL80211_ATTR_MDID] ||
10374 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
10375 return -EINVAL;
10376
10377 memset(&ft_params, 0, sizeof(ft_params));
10378 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10379 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10380 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10381
10382 return rdev_update_ft_ies(rdev, dev, &ft_params);
10383}
10384
5de17984
AS		 10385static int nl80211_crit_protocol_start(struct sk_buff *skb,
10386 struct genl_info *info)
10387{
10388 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10389 struct wireless_dev *wdev = info->user_ptr[1];
10390 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10391 u16 duration;
10392 int ret;
10393
10394 if (!rdev->ops->crit_proto_start)
10395 return -EOPNOTSUPP;
10396
10397 if (WARN_ON(!rdev->ops->crit_proto_stop))
10398 return -EINVAL;
10399
10400 if (rdev->crit_proto_nlportid)
10401 return -EBUSY;
10402
10403 /* determine protocol if provided */
10404 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10405 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10406
10407 if (proto >= NUM_NL80211_CRIT_PROTO)
10408 return -EINVAL;
10409
10410 /* timeout must be provided */
10411 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10412 return -EINVAL;
10413
10414 duration =
10415 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10416
10417 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10418 return -ERANGE;
10419
10420 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10421 if (!ret)
10422 rdev->crit_proto_nlportid = info->snd_portid;
10423
10424 return ret;
10425}
10426
10427static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10428 struct genl_info *info)
10429{
10430 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10431 struct wireless_dev *wdev = info->user_ptr[1];
10432
10433 if (!rdev->ops->crit_proto_stop)
10434 return -EOPNOTSUPP;
10435
10436 if (rdev->crit_proto_nlportid) {
10437 rdev->crit_proto_nlportid = 0;
10438 rdev_crit_proto_stop(rdev, wdev);
10439 }
10440 return 0;
10441}
10442
ad7e718c
JB		 10443static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10444{
10445 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10446 struct wireless_dev *wdev =
10447 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10448 int i, err;
10449 u32 vid, subcmd;
10450
10451 if (!rdev->wiphy.vendor_commands)
10452 return -EOPNOTSUPP;
10453
10454 if (IS_ERR(wdev)) {
10455 err = PTR_ERR(wdev);
10456 if (err != -EINVAL)
10457 return err;
10458 wdev = NULL;
10459 } else if (wdev->wiphy != &rdev->wiphy) {
10460 return -EINVAL;
10461 }
10462
10463 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10464 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10465 return -EINVAL;
10466
10467 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10468 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10469 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10470 const struct wiphy_vendor_command *vcmd;
10471 void *data = NULL;
10472 int len = 0;
10473
10474 vcmd = &rdev->wiphy.vendor_commands[i];
10475
10476 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10477 continue;
10478
10479 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10480 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10481 if (!wdev)
10482 return -EINVAL;
10483 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10484 !wdev->netdev)
10485 return -EINVAL;
10486
10487 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10488 if (wdev->netdev &&
10489 !netif_running(wdev->netdev))
10490 return -ENETDOWN;
10491 if (!wdev->netdev && !wdev->p2p_started)
10492 return -ENETDOWN;
10493 }
7bdbe400
JB		 10494
10495 if (!vcmd->doit)
10496 return -EOPNOTSUPP;
ad7e718c
JB		 10497 } else {
10498 wdev = NULL;
10499 }
10500
10501 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10502 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10503 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10504 }
10505
10506 rdev->cur_cmd_info = info;
10507 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10508 data, len);
10509 rdev->cur_cmd_info = NULL;
10510 return err;
10511 }
10512
10513 return -EOPNOTSUPP;
10514}
10515
7bdbe400
JB		 10516static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10517 struct netlink_callback *cb,
10518 struct cfg80211_registered_device **rdev,
10519 struct wireless_dev **wdev)
10520{
10521 u32 vid, subcmd;
10522 unsigned int i;
10523 int vcmd_idx = -1;
10524 int err;
10525 void *data = NULL;
10526 unsigned int data_len = 0;
10527
10528 rtnl_lock();
10529
10530 if (cb->args[0]) {
10531 /* subtract the 1 again here */
10532 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10533 struct wireless_dev *tmp;
10534
10535 if (!wiphy) {
10536 err = -ENODEV;
10537 goto out_unlock;
10538 }
10539 *rdev = wiphy_to_rdev(wiphy);
10540 *wdev = NULL;
10541
10542 if (cb->args[1]) {
53873f13 10543 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
7bdbe400
JB		 10544 if (tmp->identifier == cb->args[1] - 1) {
10545 *wdev = tmp;
10546 break;
10547 }
10548 }
10549 }
10550
10551 /* keep rtnl locked in successful case */
10552 return 0;
10553 }
10554
10555 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10556 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10557 nl80211_policy);
10558 if (err)
10559 goto out_unlock;
10560
10561 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10562 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10563 err = -EINVAL;
10564 goto out_unlock;
10565 }
10566
10567 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10568 nl80211_fam.attrbuf);
10569 if (IS_ERR(*wdev))
10570 *wdev = NULL;
10571
10572 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10573 nl80211_fam.attrbuf);
10574 if (IS_ERR(*rdev)) {
10575 err = PTR_ERR(*rdev);
10576 goto out_unlock;
10577 }
10578
10579 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10580 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10581
10582 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10583 const struct wiphy_vendor_command *vcmd;
10584
10585 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10586
10587 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10588 continue;
10589
10590 if (!vcmd->dumpit) {
10591 err = -EOPNOTSUPP;
10592 goto out_unlock;
10593 }
10594
10595 vcmd_idx = i;
10596 break;
10597 }
10598
10599 if (vcmd_idx < 0) {
10600 err = -EOPNOTSUPP;
10601 goto out_unlock;
10602 }
10603
10604 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10605 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10606 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10607 }
10608
10609 /* 0 is the first index - add 1 to parse only once */
10610 cb->args[0] = (*rdev)->wiphy_idx + 1;
10611 /* add 1 to know if it was NULL */
10612 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10613 cb->args[2] = vcmd_idx;
10614 cb->args[3] = (unsigned long)data;
10615 cb->args[4] = data_len;
10616
10617 /* keep rtnl locked in successful case */
10618 return 0;
10619 out_unlock:
10620 rtnl_unlock();
10621 return err;
10622}
10623
10624static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10625 struct netlink_callback *cb)
10626{
10627 struct cfg80211_registered_device *rdev;
10628 struct wireless_dev *wdev;
10629 unsigned int vcmd_idx;
10630 const struct wiphy_vendor_command *vcmd;
10631 void *data;
10632 int data_len;
10633 int err;
10634 struct nlattr *vendor_data;
10635
10636 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10637 if (err)
10638 return err;
10639
10640 vcmd_idx = cb->args[2];
10641 data = (void *)cb->args[3];
10642 data_len = cb->args[4];
10643 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10644
10645 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10646 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10647 if (!wdev)
10648 return -EINVAL;
10649 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10650 !wdev->netdev)
10651 return -EINVAL;
10652
10653 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10654 if (wdev->netdev &&
10655 !netif_running(wdev->netdev))
10656 return -ENETDOWN;
10657 if (!wdev->netdev && !wdev->p2p_started)
10658 return -ENETDOWN;
10659 }
10660 }
10661
10662 while (1) {
10663 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10664 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10665 NL80211_CMD_VENDOR);
10666 if (!hdr)
10667 break;
10668
10669 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 10670 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
10671 wdev_id(wdev),
10672 NL80211_ATTR_PAD))) {
7bdbe400
JB		 10673 genlmsg_cancel(skb, hdr);
10674 break;
10675 }
10676
10677 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10678 if (!vendor_data) {
10679 genlmsg_cancel(skb, hdr);
10680 break;
10681 }
10682
10683 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10684 (unsigned long *)&cb->args[5]);
10685 nla_nest_end(skb, vendor_data);
10686
10687 if (err == -ENOBUFS || err == -ENOENT) {
10688 genlmsg_cancel(skb, hdr);
10689 break;
10690 } else if (err) {
10691 genlmsg_cancel(skb, hdr);
10692 goto out;
10693 }
10694
10695 genlmsg_end(skb, hdr);
10696 }
10697
10698 err = skb->len;
10699 out:
10700 rtnl_unlock();
10701 return err;
10702}
10703
ad7e718c
JB		 10704struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10705 enum nl80211_commands cmd,
10706 enum nl80211_attrs attr,
10707 int approxlen)
10708{
f26cbf40 10709 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 10710
10711 if (WARN_ON(!rdev->cur_cmd_info))
10712 return NULL;
10713
6c09e791 10714 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 10715 rdev->cur_cmd_info->snd_portid,
10716 rdev->cur_cmd_info->snd_seq,
567ffc35 10717 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 10718}
10719EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10720
10721int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10722{
10723 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10724 void *hdr = ((void **)skb->cb)[1];
10725 struct nlattr *data = ((void **)skb->cb)[2];
10726
bd8c78e7
JB		 10727 /* clear CB data for netlink core to own from now on */
10728 memset(skb->cb, 0, sizeof(skb->cb));
10729
ad7e718c
JB		 10730 if (WARN_ON(!rdev->cur_cmd_info)) {
10731 kfree_skb(skb);
10732 return -EINVAL;
10733 }
10734
10735 nla_nest_end(skb, data);
10736 genlmsg_end(skb, hdr);
10737 return genlmsg_reply(skb, rdev->cur_cmd_info);
10738}
10739EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10740
fa9ffc74
KP		 10741static int nl80211_set_qos_map(struct sk_buff *skb,
10742 struct genl_info *info)
10743{
10744 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10745 struct cfg80211_qos_map *qos_map = NULL;
10746 struct net_device *dev = info->user_ptr[1];
10747 u8 *pos, len, num_des, des_len, des;
10748 int ret;
10749
10750 if (!rdev->ops->set_qos_map)
10751 return -EOPNOTSUPP;
10752
10753 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10754 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10755 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10756
10757 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10758 len > IEEE80211_QOS_MAP_LEN_MAX)
10759 return -EINVAL;
10760
10761 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10762 if (!qos_map)
10763 return -ENOMEM;
10764
10765 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10766 if (num_des) {
10767 des_len = num_des *
10768 sizeof(struct cfg80211_dscp_exception);
10769 memcpy(qos_map->dscp_exception, pos, des_len);
10770 qos_map->num_des = num_des;
10771 for (des = 0; des < num_des; des++) {
10772 if (qos_map->dscp_exception[des].up > 7) {
10773 kfree(qos_map);
10774 return -EINVAL;
10775 }
10776 }
10777 pos += des_len;
10778 }
10779 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10780 }
10781
10782 wdev_lock(dev->ieee80211_ptr);
10783 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10784 if (!ret)
10785 ret = rdev_set_qos_map(rdev, dev, qos_map);
10786 wdev_unlock(dev->ieee80211_ptr);
10787
10788 kfree(qos_map);
10789 return ret;
10790}
10791
960d01ac
JB		 10792static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10793{
10794 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10795 struct net_device *dev = info->user_ptr[1];
10796 struct wireless_dev *wdev = dev->ieee80211_ptr;
10797 const u8 *peer;
10798 u8 tsid, up;
10799 u16 admitted_time = 0;
10800 int err;
10801
723e73ac 10802 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 10803 return -EOPNOTSUPP;
10804
10805 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10806 !info->attrs[NL80211_ATTR_USER_PRIO])
10807 return -EINVAL;
10808
10809 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10810 if (tsid >= IEEE80211_NUM_TIDS)
10811 return -EINVAL;
10812
10813 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10814 if (up >= IEEE80211_NUM_UPS)
10815 return -EINVAL;
10816
10817 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 10818 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 10819 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 10820 * need more attributes for that (e.g. BA session requirement);
10821 * change the WMM adminssion test above to allow both then
960d01ac
JB		 10822 */
10823 return -EINVAL;
10824 }
10825
10826 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10827
10828 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10829 admitted_time =
10830 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10831 if (!admitted_time)
10832 return -EINVAL;
10833 }
10834
10835 wdev_lock(wdev);
10836 switch (wdev->iftype) {
10837 case NL80211_IFTYPE_STATION:
10838 case NL80211_IFTYPE_P2P_CLIENT:
10839 if (wdev->current_bss)
10840 break;
10841 err = -ENOTCONN;
10842 goto out;
10843 default:
10844 err = -EOPNOTSUPP;
10845 goto out;
10846 }
10847
10848 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10849
10850 out:
10851 wdev_unlock(wdev);
10852 return err;
10853}
10854
10855static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10856{
10857 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10858 struct net_device *dev = info->user_ptr[1];
10859 struct wireless_dev *wdev = dev->ieee80211_ptr;
10860 const u8 *peer;
10861 u8 tsid;
10862 int err;
10863
10864 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10865 return -EINVAL;
10866
10867 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10868 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10869
10870 wdev_lock(wdev);
10871 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10872 wdev_unlock(wdev);
10873
10874 return err;
10875}
10876
1057d35e
AN		 10877static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10878 struct genl_info *info)
10879{
10880 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10881 struct net_device *dev = info->user_ptr[1];
10882 struct wireless_dev *wdev = dev->ieee80211_ptr;
10883 struct cfg80211_chan_def chandef = {};
10884 const u8 *addr;
10885 u8 oper_class;
10886 int err;
10887
10888 if (!rdev->ops->tdls_channel_switch ||
10889 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10890 return -EOPNOTSUPP;
10891
10892 switch (dev->ieee80211_ptr->iftype) {
10893 case NL80211_IFTYPE_STATION:
10894 case NL80211_IFTYPE_P2P_CLIENT:
10895 break;
10896 default:
10897 return -EOPNOTSUPP;
10898 }
10899
10900 if (!info->attrs[NL80211_ATTR_MAC] ||
10901 !info->attrs[NL80211_ATTR_OPER_CLASS])
10902 return -EINVAL;
10903
10904 err = nl80211_parse_chandef(rdev, info, &chandef);
10905 if (err)
10906 return err;
10907
10908 /*
10909 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10910 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10911 * specification is not defined for them.
10912 */
57fbcce3 10913 if (chandef.chan->band == NL80211_BAND_2GHZ &&
1057d35e
AN		 10914 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10915 chandef.width != NL80211_CHAN_WIDTH_20)
10916 return -EINVAL;
10917
10918 /* we will be active on the TDLS link */
923b352f
AN		 10919 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10920 wdev->iftype))
1057d35e
AN		 10921 return -EINVAL;
10922
10923 /* don't allow switching to DFS channels */
10924 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10925 return -EINVAL;
10926
10927 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10928 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10929
10930 wdev_lock(wdev);
10931 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10932 wdev_unlock(wdev);
10933
10934 return err;
10935}
10936
10937static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10938 struct genl_info *info)
10939{
10940 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10941 struct net_device *dev = info->user_ptr[1];
10942 struct wireless_dev *wdev = dev->ieee80211_ptr;
10943 const u8 *addr;
10944
10945 if (!rdev->ops->tdls_channel_switch ||
10946 !rdev->ops->tdls_cancel_channel_switch ||
10947 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10948 return -EOPNOTSUPP;
10949
10950 switch (dev->ieee80211_ptr->iftype) {
10951 case NL80211_IFTYPE_STATION:
10952 case NL80211_IFTYPE_P2P_CLIENT:
10953 break;
10954 default:
10955 return -EOPNOTSUPP;
10956 }
10957
10958 if (!info->attrs[NL80211_ATTR_MAC])
10959 return -EINVAL;
10960
10961 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10962
10963 wdev_lock(wdev);
10964 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10965 wdev_unlock(wdev);
10966
10967 return 0;
10968}
10969
4c476991
JB		 10970#define NL80211_FLAG_NEED_WIPHY 0x01
10971#define NL80211_FLAG_NEED_NETDEV 0x02
10972#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10973#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10974#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10975 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10976#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10977/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10978#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10979 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 10980#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 10981
f84f771d 10982static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10983 struct genl_info *info)
10984{
10985 struct cfg80211_registered_device *rdev;
89a54e48 10986 struct wireless_dev *wdev;
4c476991 10987 struct net_device *dev;
4c476991
JB		 10988 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10989
10990 if (rtnl)
10991 rtnl_lock();
10992
10993 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 10994 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 10995 if (IS_ERR(rdev)) {
10996 if (rtnl)
10997 rtnl_unlock();
10998 return PTR_ERR(rdev);
10999 }
11000 info->user_ptr[0] = rdev;
1bf614ef
JB		 11001 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
11002 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 11003 ASSERT_RTNL();
11004
89a54e48
JB		 11005 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
11006 info->attrs);
11007 if (IS_ERR(wdev)) {
4c476991
JB		 11008 if (rtnl)
11009 rtnl_unlock();
89a54e48 11010 return PTR_ERR(wdev);
4c476991 11011 }
89a54e48 11012
89a54e48 11013 dev = wdev->netdev;
f26cbf40 11014 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 11015
1bf614ef
JB		 11016 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
11017 if (!dev) {
1bf614ef
JB		 11018 if (rtnl)
11019 rtnl_unlock();
11020 return -EINVAL;
11021 }
11022
11023 info->user_ptr[1] = dev;
11024 } else {
11025 info->user_ptr[1] = wdev;
41265714 11026 }
1bf614ef
JB		 11027
11028 if (dev) {
11029 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
11030 !netif_running(dev)) {
1bf614ef
JB		 11031 if (rtnl)
11032 rtnl_unlock();
11033 return -ENETDOWN;
11034 }
11035
11036 dev_hold(dev);
98104fde
JB		 11037 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
11038 if (!wdev->p2p_started) {
98104fde
JB		 11039 if (rtnl)
11040 rtnl_unlock();
11041 return -ENETDOWN;
11042 }
41265714 11043 }
89a54e48 11044
4c476991 11045 info->user_ptr[0] = rdev;
4c476991
JB		 11046 }
11047
11048 return 0;
11049}
11050
f84f771d 11051static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 11052 struct genl_info *info)
11053{
1bf614ef
JB		 11054 if (info->user_ptr[1]) {
11055 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
11056 struct wireless_dev *wdev = info->user_ptr[1];
11057
11058 if (wdev->netdev)
11059 dev_put(wdev->netdev);
11060 } else {
11061 dev_put(info->user_ptr[1]);
11062 }
11063 }
5393b917 11064
4c476991
JB		 11065 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
11066 rtnl_unlock();
5393b917
JB		 11067
11068 /* If needed, clear the netlink message payload from the SKB
11069 * as it might contain key data that shouldn't stick around on
11070 * the heap after the SKB is freed. The netlink message header
11071 * is still needed for further processing, so leave it intact.
11072 */
11073 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
11074 struct nlmsghdr *nlh = nlmsg_hdr(skb);
11075
11076 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
11077 }
4c476991
JB		 11078}
11079
4534de83 11080static const struct genl_ops nl80211_ops[] = {
55682965
JB		 11081 {
11082 .cmd = NL80211_CMD_GET_WIPHY,
11083 .doit = nl80211_get_wiphy,
11084 .dumpit = nl80211_dump_wiphy,
86e8cf98 11085 .done = nl80211_dump_wiphy_done,
55682965
JB		 11086 .policy = nl80211_policy,
11087 /* can be retrieved by unprivileged users */
5fe231e8
JB		 11088 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11089 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11090 },
11091 {
11092 .cmd = NL80211_CMD_SET_WIPHY,
11093 .doit = nl80211_set_wiphy,
11094 .policy = nl80211_policy,
5617c6cd 11095 .flags = GENL_UNS_ADMIN_PERM,
4c476991 11096 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 11097 },
11098 {
11099 .cmd = NL80211_CMD_GET_INTERFACE,
11100 .doit = nl80211_get_interface,
11101 .dumpit = nl80211_dump_interface,
11102 .policy = nl80211_policy,
11103 /* can be retrieved by unprivileged users */
5fe231e8
JB		 11104 .internal_flags = NL80211_FLAG_NEED_WDEV |
11105 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11106 },
11107 {
11108 .cmd = NL80211_CMD_SET_INTERFACE,
11109 .doit = nl80211_set_interface,
11110 .policy = nl80211_policy,
5617c6cd 11111 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11112 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11113 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11114 },
11115 {
11116 .cmd = NL80211_CMD_NEW_INTERFACE,
11117 .doit = nl80211_new_interface,
11118 .policy = nl80211_policy,
5617c6cd 11119 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11120 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11121 NL80211_FLAG_NEED_RTNL,
55682965
JB		 11122 },
11123 {
11124 .cmd = NL80211_CMD_DEL_INTERFACE,
11125 .doit = nl80211_del_interface,
11126 .policy = nl80211_policy,
5617c6cd 11127 .flags = GENL_UNS_ADMIN_PERM,
84efbb84 11128 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11129 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 11130 },
11131 {
11132 .cmd = NL80211_CMD_GET_KEY,
11133 .doit = nl80211_get_key,
11134 .policy = nl80211_policy,
5617c6cd 11135 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11136 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11137 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 11138 },
11139 {
11140 .cmd = NL80211_CMD_SET_KEY,
11141 .doit = nl80211_set_key,
11142 .policy = nl80211_policy,
5617c6cd 11143 .flags = GENL_UNS_ADMIN_PERM,
41265714 11144 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11145 NL80211_FLAG_NEED_RTNL |
11146 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 11147 },
11148 {
11149 .cmd = NL80211_CMD_NEW_KEY,
11150 .doit = nl80211_new_key,
11151 .policy = nl80211_policy,
5617c6cd 11152 .flags = GENL_UNS_ADMIN_PERM,
41265714 11153 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11154 NL80211_FLAG_NEED_RTNL |
11155 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 11156 },
11157 {
11158 .cmd = NL80211_CMD_DEL_KEY,
11159 .doit = nl80211_del_key,
11160 .policy = nl80211_policy,
5617c6cd 11161 .flags = GENL_UNS_ADMIN_PERM,
41265714 11162 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11163 NL80211_FLAG_NEED_RTNL,
55682965 11164 },
ed1b6cc7
JB		 11165 {
11166 .cmd = NL80211_CMD_SET_BEACON,
11167 .policy = nl80211_policy,
5617c6cd 11168 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11169 .doit = nl80211_set_beacon,
2b5f8b0b 11170 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11171 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11172 },
11173 {
8860020e 11174 .cmd = NL80211_CMD_START_AP,
ed1b6cc7 11175 .policy = nl80211_policy,
5617c6cd 11176 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11177 .doit = nl80211_start_ap,
2b5f8b0b 11178 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11179 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11180 },
11181 {
8860020e 11182 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7 11183 .policy = nl80211_policy,
5617c6cd 11184 .flags = GENL_UNS_ADMIN_PERM,
8860020e 11185 .doit = nl80211_stop_ap,
2b5f8b0b 11186 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11187 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 11188 },
5727ef1b
JB		 11189 {
11190 .cmd = NL80211_CMD_GET_STATION,
11191 .doit = nl80211_get_station,
2ec600d6 11192 .dumpit = nl80211_dump_station,
5727ef1b 11193 .policy = nl80211_policy,
4c476991
JB		 11194 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11195 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11196 },
11197 {
11198 .cmd = NL80211_CMD_SET_STATION,
11199 .doit = nl80211_set_station,
11200 .policy = nl80211_policy,
5617c6cd 11201 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11202 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11203 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11204 },
11205 {
11206 .cmd = NL80211_CMD_NEW_STATION,
11207 .doit = nl80211_new_station,
11208 .policy = nl80211_policy,
5617c6cd 11209 .flags = GENL_UNS_ADMIN_PERM,
41265714 11210 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11211 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11212 },
11213 {
11214 .cmd = NL80211_CMD_DEL_STATION,
11215 .doit = nl80211_del_station,
11216 .policy = nl80211_policy,
5617c6cd 11217 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11218 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11219 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11220 },
11221 {
11222 .cmd = NL80211_CMD_GET_MPATH,
11223 .doit = nl80211_get_mpath,
11224 .dumpit = nl80211_dump_mpath,
11225 .policy = nl80211_policy,
5617c6cd 11226 .flags = GENL_UNS_ADMIN_PERM,
41265714 11227 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11228 NL80211_FLAG_NEED_RTNL,
2ec600d6 11229 },
66be7d2b
HR		 11230 {
11231 .cmd = NL80211_CMD_GET_MPP,
11232 .doit = nl80211_get_mpp,
11233 .dumpit = nl80211_dump_mpp,
11234 .policy = nl80211_policy,
5617c6cd 11235 .flags = GENL_UNS_ADMIN_PERM,
66be7d2b
HR		 11236 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11237 NL80211_FLAG_NEED_RTNL,
11238 },
2ec600d6
LCC		 11239 {
11240 .cmd = NL80211_CMD_SET_MPATH,
11241 .doit = nl80211_set_mpath,
11242 .policy = nl80211_policy,
5617c6cd 11243 .flags = GENL_UNS_ADMIN_PERM,
41265714 11244 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11245 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11246 },
11247 {
11248 .cmd = NL80211_CMD_NEW_MPATH,
11249 .doit = nl80211_new_mpath,
11250 .policy = nl80211_policy,
5617c6cd 11251 .flags = GENL_UNS_ADMIN_PERM,
41265714 11252 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11253 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11254 },
11255 {
11256 .cmd = NL80211_CMD_DEL_MPATH,
11257 .doit = nl80211_del_mpath,
11258 .policy = nl80211_policy,
5617c6cd 11259 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11260 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11261 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 11262 },
11263 {
11264 .cmd = NL80211_CMD_SET_BSS,
11265 .doit = nl80211_set_bss,
11266 .policy = nl80211_policy,
5617c6cd 11267 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11268 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11269 NL80211_FLAG_NEED_RTNL,
b2e1b302 11270 },
f130347c
LR		 11271 {
11272 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 11273 .doit = nl80211_get_reg_do,
11274 .dumpit = nl80211_get_reg_dump,
f130347c 11275 .policy = nl80211_policy,
5fe231e8 11276 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 11277 /* can be retrieved by unprivileged users */
11278 },
b6863036 11279#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 11280 {
11281 .cmd = NL80211_CMD_SET_REG,
11282 .doit = nl80211_set_reg,
11283 .policy = nl80211_policy,
11284 .flags = GENL_ADMIN_PERM,
5fe231e8 11285 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 11286 },
b6863036 11287#endif
b2e1b302
LR		 11288 {
11289 .cmd = NL80211_CMD_REQ_SET_REG,
11290 .doit = nl80211_req_set_reg,
11291 .policy = nl80211_policy,
93da9cc1 11292 .flags = GENL_ADMIN_PERM,
11293 },
11294 {
24bdd9f4
JC		 11295 .cmd = NL80211_CMD_GET_MESH_CONFIG,
11296 .doit = nl80211_get_mesh_config,
93da9cc1 11297 .policy = nl80211_policy,
11298 /* can be retrieved by unprivileged users */
2b5f8b0b 11299 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11300 NL80211_FLAG_NEED_RTNL,
93da9cc1 11301 },
11302 {
24bdd9f4
JC		 11303 .cmd = NL80211_CMD_SET_MESH_CONFIG,
11304 .doit = nl80211_update_mesh_config,
93da9cc1 11305 .policy = nl80211_policy,
5617c6cd 11306 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c 11307 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11308 NL80211_FLAG_NEED_RTNL,
9aed3cc1 11309 },
2a519311
JB		 11310 {
11311 .cmd = NL80211_CMD_TRIGGER_SCAN,
11312 .doit = nl80211_trigger_scan,
11313 .policy = nl80211_policy,
5617c6cd 11314 .flags = GENL_UNS_ADMIN_PERM,
fd014284 11315 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11316 NL80211_FLAG_NEED_RTNL,
2a519311 11317 },
91d3ab46
VK		 11318 {
11319 .cmd = NL80211_CMD_ABORT_SCAN,
11320 .doit = nl80211_abort_scan,
11321 .policy = nl80211_policy,
5617c6cd 11322 .flags = GENL_UNS_ADMIN_PERM,
91d3ab46
VK		 11323 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11324 NL80211_FLAG_NEED_RTNL,
11325 },
2a519311
JB		 11326 {
11327 .cmd = NL80211_CMD_GET_SCAN,
11328 .policy = nl80211_policy,
11329 .dumpit = nl80211_dump_scan,
11330 },
807f8a8c
LC		 11331 {
11332 .cmd = NL80211_CMD_START_SCHED_SCAN,
11333 .doit = nl80211_start_sched_scan,
11334 .policy = nl80211_policy,
5617c6cd 11335 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 11336 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11337 NL80211_FLAG_NEED_RTNL,
11338 },
11339 {
11340 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
11341 .doit = nl80211_stop_sched_scan,
11342 .policy = nl80211_policy,
5617c6cd 11343 .flags = GENL_UNS_ADMIN_PERM,
807f8a8c
LC		 11344 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11345 NL80211_FLAG_NEED_RTNL,
11346 },
636a5d36
JM		 11347 {
11348 .cmd = NL80211_CMD_AUTHENTICATE,
11349 .doit = nl80211_authenticate,
11350 .policy = nl80211_policy,
5617c6cd 11351 .flags = GENL_UNS_ADMIN_PERM,
41265714 11352 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11353 NL80211_FLAG_NEED_RTNL |
11354 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 11355 },
11356 {
11357 .cmd = NL80211_CMD_ASSOCIATE,
11358 .doit = nl80211_associate,
11359 .policy = nl80211_policy,
5617c6cd 11360 .flags = GENL_UNS_ADMIN_PERM,
41265714 11361 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11362 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11363 },
11364 {
11365 .cmd = NL80211_CMD_DEAUTHENTICATE,
11366 .doit = nl80211_deauthenticate,
11367 .policy = nl80211_policy,
5617c6cd 11368 .flags = GENL_UNS_ADMIN_PERM,
41265714 11369 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11370 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11371 },
11372 {
11373 .cmd = NL80211_CMD_DISASSOCIATE,
11374 .doit = nl80211_disassociate,
11375 .policy = nl80211_policy,
5617c6cd 11376 .flags = GENL_UNS_ADMIN_PERM,
41265714 11377 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11378 NL80211_FLAG_NEED_RTNL,
636a5d36 11379 },
04a773ad
JB		 11380 {
11381 .cmd = NL80211_CMD_JOIN_IBSS,
11382 .doit = nl80211_join_ibss,
11383 .policy = nl80211_policy,
5617c6cd 11384 .flags = GENL_UNS_ADMIN_PERM,
41265714 11385 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11386 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 11387 },
11388 {
11389 .cmd = NL80211_CMD_LEAVE_IBSS,
11390 .doit = nl80211_leave_ibss,
11391 .policy = nl80211_policy,
5617c6cd 11392 .flags = GENL_UNS_ADMIN_PERM,
41265714 11393 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11394 NL80211_FLAG_NEED_RTNL,
04a773ad 11395 },
aff89a9b
JB		 11396#ifdef CONFIG_NL80211_TESTMODE
11397 {
11398 .cmd = NL80211_CMD_TESTMODE,
11399 .doit = nl80211_testmode_do,
71063f0e 11400 .dumpit = nl80211_testmode_dump,
aff89a9b 11401 .policy = nl80211_policy,
5617c6cd 11402 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11403 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11404 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 11405 },
11406#endif
b23aa676
SO		 11407 {
11408 .cmd = NL80211_CMD_CONNECT,
11409 .doit = nl80211_connect,
11410 .policy = nl80211_policy,
5617c6cd 11411 .flags = GENL_UNS_ADMIN_PERM,
41265714 11412 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11413 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 11414 },
11415 {
11416 .cmd = NL80211_CMD_DISCONNECT,
11417 .doit = nl80211_disconnect,
11418 .policy = nl80211_policy,
5617c6cd 11419 .flags = GENL_UNS_ADMIN_PERM,
41265714 11420 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11421 NL80211_FLAG_NEED_RTNL,
b23aa676 11422 },
463d0183
JB		 11423 {
11424 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11425 .doit = nl80211_wiphy_netns,
11426 .policy = nl80211_policy,
5617c6cd 11427 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11428 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11429 NL80211_FLAG_NEED_RTNL,
463d0183 11430 },
61fa713c
HS		 11431 {
11432 .cmd = NL80211_CMD_GET_SURVEY,
11433 .policy = nl80211_policy,
11434 .dumpit = nl80211_dump_survey,
11435 },
67fbb16b
SO		 11436 {
11437 .cmd = NL80211_CMD_SET_PMKSA,
11438 .doit = nl80211_setdel_pmksa,
11439 .policy = nl80211_policy,
5617c6cd 11440 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11441 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11442 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11443 },
11444 {
11445 .cmd = NL80211_CMD_DEL_PMKSA,
11446 .doit = nl80211_setdel_pmksa,
11447 .policy = nl80211_policy,
5617c6cd 11448 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11449 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11450 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11451 },
11452 {
11453 .cmd = NL80211_CMD_FLUSH_PMKSA,
11454 .doit = nl80211_flush_pmksa,
11455 .policy = nl80211_policy,
5617c6cd 11456 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11457 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11458 NL80211_FLAG_NEED_RTNL,
67fbb16b 11459 },
9588bbd5
JM		 11460 {
11461 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11462 .doit = nl80211_remain_on_channel,
11463 .policy = nl80211_policy,
5617c6cd 11464 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11465 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11466 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 11467 },
11468 {
11469 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11470 .doit = nl80211_cancel_remain_on_channel,
11471 .policy = nl80211_policy,
5617c6cd 11472 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11473 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11474 NL80211_FLAG_NEED_RTNL,
9588bbd5 11475 },
13ae75b1
JM		 11476 {
11477 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11478 .doit = nl80211_set_tx_bitrate_mask,
11479 .policy = nl80211_policy,
5617c6cd 11480 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11481 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11482 NL80211_FLAG_NEED_RTNL,
13ae75b1 11483 },
026331c4 11484 {
2e161f78
JB		 11485 .cmd = NL80211_CMD_REGISTER_FRAME,
11486 .doit = nl80211_register_mgmt,
026331c4 11487 .policy = nl80211_policy,
5617c6cd 11488 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11489 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11490 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 11491 },
11492 {
2e161f78
JB		 11493 .cmd = NL80211_CMD_FRAME,
11494 .doit = nl80211_tx_mgmt,
026331c4 11495 .policy = nl80211_policy,
5617c6cd 11496 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11497 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 11498 NL80211_FLAG_NEED_RTNL,
11499 },
11500 {
11501 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11502 .doit = nl80211_tx_mgmt_cancel_wait,
11503 .policy = nl80211_policy,
5617c6cd 11504 .flags = GENL_UNS_ADMIN_PERM,
71bbc994 11505 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11506 NL80211_FLAG_NEED_RTNL,
026331c4 11507 },
ffb9eb3d
KV		 11508 {
11509 .cmd = NL80211_CMD_SET_POWER_SAVE,
11510 .doit = nl80211_set_power_save,
11511 .policy = nl80211_policy,
5617c6cd 11512 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11513 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11514 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 11515 },
11516 {
11517 .cmd = NL80211_CMD_GET_POWER_SAVE,
11518 .doit = nl80211_get_power_save,
11519 .policy = nl80211_policy,
11520 /* can be retrieved by unprivileged users */
4c476991
JB		 11521 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11522 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 11523 },
d6dc1a38
JO		 11524 {
11525 .cmd = NL80211_CMD_SET_CQM,
11526 .doit = nl80211_set_cqm,
11527 .policy = nl80211_policy,
5617c6cd 11528 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11529 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11530 NL80211_FLAG_NEED_RTNL,
d6dc1a38 11531 },
f444de05
JB		 11532 {
11533 .cmd = NL80211_CMD_SET_CHANNEL,
11534 .doit = nl80211_set_channel,
11535 .policy = nl80211_policy,
5617c6cd 11536 .flags = GENL_UNS_ADMIN_PERM,
4c476991
JB		 11537 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11538 NL80211_FLAG_NEED_RTNL,
f444de05 11539 },
e8347eba
BJ		 11540 {
11541 .cmd = NL80211_CMD_SET_WDS_PEER,
11542 .doit = nl80211_set_wds_peer,
11543 .policy = nl80211_policy,
5617c6cd 11544 .flags = GENL_UNS_ADMIN_PERM,
43b19952
JB		 11545 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11546 NL80211_FLAG_NEED_RTNL,
e8347eba 11547 },
29cbe68c
JB		 11548 {
11549 .cmd = NL80211_CMD_JOIN_MESH,
11550 .doit = nl80211_join_mesh,
11551 .policy = nl80211_policy,
5617c6cd 11552 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 11553 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11554 NL80211_FLAG_NEED_RTNL,
11555 },
11556 {
11557 .cmd = NL80211_CMD_LEAVE_MESH,
11558 .doit = nl80211_leave_mesh,
11559 .policy = nl80211_policy,
5617c6cd 11560 .flags = GENL_UNS_ADMIN_PERM,
29cbe68c
JB		 11561 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11562 NL80211_FLAG_NEED_RTNL,
11563 },
6e0bd6c3
RL		 11564 {
11565 .cmd = NL80211_CMD_JOIN_OCB,
11566 .doit = nl80211_join_ocb,
11567 .policy = nl80211_policy,
5617c6cd 11568 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 11569 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11570 NL80211_FLAG_NEED_RTNL,
11571 },
11572 {
11573 .cmd = NL80211_CMD_LEAVE_OCB,
11574 .doit = nl80211_leave_ocb,
11575 .policy = nl80211_policy,
5617c6cd 11576 .flags = GENL_UNS_ADMIN_PERM,
6e0bd6c3
RL		 11577 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11578 NL80211_FLAG_NEED_RTNL,
11579 },
dfb89c56 11580#ifdef CONFIG_PM
ff1b6e69
JB		 11581 {
11582 .cmd = NL80211_CMD_GET_WOWLAN,
11583 .doit = nl80211_get_wowlan,
11584 .policy = nl80211_policy,
11585 /* can be retrieved by unprivileged users */
11586 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11587 NL80211_FLAG_NEED_RTNL,
11588 },
11589 {
11590 .cmd = NL80211_CMD_SET_WOWLAN,
11591 .doit = nl80211_set_wowlan,
11592 .policy = nl80211_policy,
5617c6cd 11593 .flags = GENL_UNS_ADMIN_PERM,
ff1b6e69
JB		 11594 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11595 NL80211_FLAG_NEED_RTNL,
11596 },
dfb89c56 11597#endif
e5497d76
JB		 11598 {
11599 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11600 .doit = nl80211_set_rekey_data,
11601 .policy = nl80211_policy,
5617c6cd 11602 .flags = GENL_UNS_ADMIN_PERM,
e5497d76 11603 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11604 NL80211_FLAG_NEED_RTNL |
11605 NL80211_FLAG_CLEAR_SKB,
e5497d76 11606 },
109086ce
AN		 11607 {
11608 .cmd = NL80211_CMD_TDLS_MGMT,
11609 .doit = nl80211_tdls_mgmt,
11610 .policy = nl80211_policy,
5617c6cd 11611 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 11612 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11613 NL80211_FLAG_NEED_RTNL,
11614 },
11615 {
11616 .cmd = NL80211_CMD_TDLS_OPER,
11617 .doit = nl80211_tdls_oper,
11618 .policy = nl80211_policy,
5617c6cd 11619 .flags = GENL_UNS_ADMIN_PERM,
109086ce
AN		 11620 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11621 NL80211_FLAG_NEED_RTNL,
11622 },
28946da7
JB		 11623 {
11624 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11625 .doit = nl80211_register_unexpected_frame,
11626 .policy = nl80211_policy,
5617c6cd 11627 .flags = GENL_UNS_ADMIN_PERM,
28946da7
JB		 11628 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11629 NL80211_FLAG_NEED_RTNL,
11630 },
7f6cf311
JB		 11631 {
11632 .cmd = NL80211_CMD_PROBE_CLIENT,
11633 .doit = nl80211_probe_client,
11634 .policy = nl80211_policy,
5617c6cd 11635 .flags = GENL_UNS_ADMIN_PERM,
2b5f8b0b 11636 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 11637 NL80211_FLAG_NEED_RTNL,
11638 },
5e760230
JB		 11639 {
11640 .cmd = NL80211_CMD_REGISTER_BEACONS,
11641 .doit = nl80211_register_beacons,
11642 .policy = nl80211_policy,
5617c6cd 11643 .flags = GENL_UNS_ADMIN_PERM,
5e760230
JB		 11644 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11645 NL80211_FLAG_NEED_RTNL,
11646 },
1d9d9213
SW		 11647 {
11648 .cmd = NL80211_CMD_SET_NOACK_MAP,
11649 .doit = nl80211_set_noack_map,
11650 .policy = nl80211_policy,
5617c6cd 11651 .flags = GENL_UNS_ADMIN_PERM,
1d9d9213
SW		 11652 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11653 NL80211_FLAG_NEED_RTNL,
11654 },
98104fde
JB		 11655 {
11656 .cmd = NL80211_CMD_START_P2P_DEVICE,
11657 .doit = nl80211_start_p2p_device,
11658 .policy = nl80211_policy,
5617c6cd 11659 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 11660 .internal_flags = NL80211_FLAG_NEED_WDEV |
11661 NL80211_FLAG_NEED_RTNL,
11662 },
11663 {
11664 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11665 .doit = nl80211_stop_p2p_device,
11666 .policy = nl80211_policy,
5617c6cd 11667 .flags = GENL_UNS_ADMIN_PERM,
98104fde
JB		 11668 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11669 NL80211_FLAG_NEED_RTNL,
11670 },
f4e583c8
AQ		 11671 {
11672 .cmd = NL80211_CMD_SET_MCAST_RATE,
11673 .doit = nl80211_set_mcast_rate,
77765eaf 11674 .policy = nl80211_policy,
5617c6cd 11675 .flags = GENL_UNS_ADMIN_PERM,
77765eaf
VT		 11676 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11677 NL80211_FLAG_NEED_RTNL,
11678 },
11679 {
11680 .cmd = NL80211_CMD_SET_MAC_ACL,
11681 .doit = nl80211_set_mac_acl,
f4e583c8 11682 .policy = nl80211_policy,
5617c6cd 11683 .flags = GENL_UNS_ADMIN_PERM,
f4e583c8
AQ		 11684 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11685 NL80211_FLAG_NEED_RTNL,
11686 },
04f39047
SW		 11687 {
11688 .cmd = NL80211_CMD_RADAR_DETECT,
11689 .doit = nl80211_start_radar_detection,
11690 .policy = nl80211_policy,
5617c6cd 11691 .flags = GENL_UNS_ADMIN_PERM,
04f39047
SW		 11692 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11693 NL80211_FLAG_NEED_RTNL,
11694 },
3713b4e3
JB		 11695 {
11696 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11697 .doit = nl80211_get_protocol_features,
11698 .policy = nl80211_policy,
11699 },
355199e0
JM		 11700 {
11701 .cmd = NL80211_CMD_UPDATE_FT_IES,
11702 .doit = nl80211_update_ft_ies,
11703 .policy = nl80211_policy,
5617c6cd 11704 .flags = GENL_UNS_ADMIN_PERM,
355199e0
JM		 11705 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11706 NL80211_FLAG_NEED_RTNL,
11707 },
5de17984
AS		 11708 {
11709 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11710 .doit = nl80211_crit_protocol_start,
11711 .policy = nl80211_policy,
5617c6cd 11712 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 11713 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11714 NL80211_FLAG_NEED_RTNL,
11715 },
11716 {
11717 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11718 .doit = nl80211_crit_protocol_stop,
11719 .policy = nl80211_policy,
5617c6cd 11720 .flags = GENL_UNS_ADMIN_PERM,
5de17984
AS		 11721 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11722 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 11723 },
11724 {
11725 .cmd = NL80211_CMD_GET_COALESCE,
11726 .doit = nl80211_get_coalesce,
11727 .policy = nl80211_policy,
11728 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11729 NL80211_FLAG_NEED_RTNL,
11730 },
11731 {
11732 .cmd = NL80211_CMD_SET_COALESCE,
11733 .doit = nl80211_set_coalesce,
11734 .policy = nl80211_policy,
5617c6cd 11735 .flags = GENL_UNS_ADMIN_PERM,
be29b99a
AK		 11736 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11737 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 11738 },
11739 {
11740 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11741 .doit = nl80211_channel_switch,
11742 .policy = nl80211_policy,
5617c6cd 11743 .flags = GENL_UNS_ADMIN_PERM,
16ef1fe2
SW		 11744 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11745 NL80211_FLAG_NEED_RTNL,
11746 },
ad7e718c
JB		 11747 {
11748 .cmd = NL80211_CMD_VENDOR,
11749 .doit = nl80211_vendor_cmd,
7bdbe400 11750 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c 11751 .policy = nl80211_policy,
5617c6cd 11752 .flags = GENL_UNS_ADMIN_PERM,
ad7e718c
JB		 11753 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11754 NL80211_FLAG_NEED_RTNL,
11755 },
fa9ffc74
KP		 11756 {
11757 .cmd = NL80211_CMD_SET_QOS_MAP,
11758 .doit = nl80211_set_qos_map,
11759 .policy = nl80211_policy,
5617c6cd 11760 .flags = GENL_UNS_ADMIN_PERM,
fa9ffc74
KP		 11761 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11762 NL80211_FLAG_NEED_RTNL,
11763 },
960d01ac
JB		 11764 {
11765 .cmd = NL80211_CMD_ADD_TX_TS,
11766 .doit = nl80211_add_tx_ts,
11767 .policy = nl80211_policy,
5617c6cd 11768 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 11769 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11770 NL80211_FLAG_NEED_RTNL,
11771 },
11772 {
11773 .cmd = NL80211_CMD_DEL_TX_TS,
11774 .doit = nl80211_del_tx_ts,
11775 .policy = nl80211_policy,
5617c6cd 11776 .flags = GENL_UNS_ADMIN_PERM,
960d01ac
JB		 11777 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11778 NL80211_FLAG_NEED_RTNL,
11779 },
1057d35e
AN		 11780 {
11781 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11782 .doit = nl80211_tdls_channel_switch,
11783 .policy = nl80211_policy,
5617c6cd 11784 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 11785 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11786 NL80211_FLAG_NEED_RTNL,
11787 },
11788 {
11789 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11790 .doit = nl80211_tdls_cancel_channel_switch,
11791 .policy = nl80211_policy,
5617c6cd 11792 .flags = GENL_UNS_ADMIN_PERM,
1057d35e
AN		 11793 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11794 NL80211_FLAG_NEED_RTNL,
11795 },
55682965 11796};
9588bbd5 11797
55682965
JB		 11798/* notification functions */
11799
3bb20556
JB		 11800void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11801 enum nl80211_commands cmd)
55682965
JB		 11802{
11803 struct sk_buff *msg;
86e8cf98 11804 struct nl80211_dump_wiphy_state state = {};
55682965 11805
3bb20556
JB		 11806 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11807 cmd != NL80211_CMD_DEL_WIPHY);
11808
fd2120ca 11809 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 11810 if (!msg)
11811 return;
11812
3bb20556 11813 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 11814 nlmsg_free(msg);
11815 return;
11816 }
11817
68eb5503 11818 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11819 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 11820}
11821
362a415d
JB		 11822static int nl80211_add_scan_req(struct sk_buff *msg,
11823 struct cfg80211_registered_device *rdev)
11824{
11825 struct cfg80211_scan_request *req = rdev->scan_req;
11826 struct nlattr *nest;
11827 int i;
11828
11829 if (WARN_ON(!req))
11830 return 0;
11831
11832 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11833 if (!nest)
11834 goto nla_put_failure;
9360ffd1
DM		 11835 for (i = 0; i < req->n_ssids; i++) {
11836 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11837 goto nla_put_failure;
11838 }
362a415d
JB		 11839 nla_nest_end(msg, nest);
11840
11841 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11842 if (!nest)
11843 goto nla_put_failure;
9360ffd1
DM		 11844 for (i = 0; i < req->n_channels; i++) {
11845 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11846 goto nla_put_failure;
11847 }
362a415d
JB		 11848 nla_nest_end(msg, nest);
11849
9360ffd1
DM		 11850 if (req->ie &&
11851 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11852 goto nla_put_failure;
362a415d 11853
ae917c9f
JB		 11854 if (req->flags &&
11855 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11856 goto nla_put_failure;
ed473771 11857
1d76250b
AS		 11858 if (req->info.scan_start_tsf &&
11859 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
11860 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
11861 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
11862 req->info.tsf_bssid)))
11863 goto nla_put_failure;
11864
362a415d
JB		 11865 return 0;
11866 nla_put_failure:
11867 return -ENOBUFS;
11868}
11869
a538e2d5
JB		 11870static int nl80211_send_scan_msg(struct sk_buff *msg,
11871 struct cfg80211_registered_device *rdev,
fd014284 11872 struct wireless_dev *wdev,
15e47304 11873 u32 portid, u32 seq, int flags,
a538e2d5 11874 u32 cmd)
2a519311
JB		 11875{
11876 void *hdr;
11877
15e47304 11878 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 11879 if (!hdr)
11880 return -1;
11881
9360ffd1 11882 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 11883 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11884 wdev->netdev->ifindex)) ||
2dad624e
ND		 11885 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11886 NL80211_ATTR_PAD))
9360ffd1 11887 goto nla_put_failure;
2a519311 11888
362a415d
JB		 11889 /* ignore errors and send incomplete event anyway */
11890 nl80211_add_scan_req(msg, rdev);
2a519311 11891
053c095a
JB		 11892 genlmsg_end(msg, hdr);
11893 return 0;
2a519311
JB		 11894
11895 nla_put_failure:
11896 genlmsg_cancel(msg, hdr);
11897 return -EMSGSIZE;
11898}
11899
807f8a8c
LC		 11900static int
11901nl80211_send_sched_scan_msg(struct sk_buff *msg,
11902 struct cfg80211_registered_device *rdev,
11903 struct net_device *netdev,
15e47304 11904 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 11905{
11906 void *hdr;
11907
15e47304 11908 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 11909 if (!hdr)
11910 return -1;
11911
9360ffd1
DM		 11912 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11913 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11914 goto nla_put_failure;
807f8a8c 11915
053c095a
JB		 11916 genlmsg_end(msg, hdr);
11917 return 0;
807f8a8c
LC		 11918
11919 nla_put_failure:
11920 genlmsg_cancel(msg, hdr);
11921 return -EMSGSIZE;
11922}
11923
a538e2d5 11924void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 11925 struct wireless_dev *wdev)
a538e2d5
JB		 11926{
11927 struct sk_buff *msg;
11928
58050fce 11929 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 11930 if (!msg)
11931 return;
11932
fd014284 11933 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 11934 NL80211_CMD_TRIGGER_SCAN) < 0) {
11935 nlmsg_free(msg);
11936 return;
11937 }
11938
68eb5503 11939 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11940 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11941}
11942
f9d15d16
JB		 11943struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11944 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11945{
11946 struct sk_buff *msg;
11947
fd2120ca 11948 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11949 if (!msg)
f9d15d16 11950 return NULL;
2a519311 11951
fd014284 11952 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11953 aborted ? NL80211_CMD_SCAN_ABORTED :
11954 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 11955 nlmsg_free(msg);
f9d15d16 11956 return NULL;
2a519311
JB		 11957 }
11958
f9d15d16 11959 return msg;
2a519311
JB		 11960}
11961
f9d15d16
JB		 11962void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11963 struct sk_buff *msg)
2a519311 11964{
2a519311
JB		 11965 if (!msg)
11966 return;
11967
68eb5503 11968 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11969 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 11970}
11971
807f8a8c
LC		 11972void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11973 struct net_device *netdev)
11974{
11975 struct sk_buff *msg;
11976
11977 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11978 if (!msg)
11979 return;
11980
11981 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11982 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11983 nlmsg_free(msg);
11984 return;
11985 }
11986
68eb5503 11987 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11988 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11989}
11990
11991void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11992 struct net_device *netdev, u32 cmd)
11993{
11994 struct sk_buff *msg;
11995
58050fce 11996 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 11997 if (!msg)
11998 return;
11999
12000 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
12001 nlmsg_free(msg);
12002 return;
12003 }
12004
68eb5503 12005 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12006 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 12007}
12008
b0d7aa59
JD		 12009static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
12010 struct regulatory_request *request)
73d54c9e 12011{
73d54c9e 12012 /* Userspace can always count this one always being set */
9360ffd1
DM		 12013 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
12014 goto nla_put_failure;
12015
12016 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
12017 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12018 NL80211_REGDOM_TYPE_WORLD))
12019 goto nla_put_failure;
12020 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
12021 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12022 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
12023 goto nla_put_failure;
12024 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
12025 request->intersect) {
12026 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12027 NL80211_REGDOM_TYPE_INTERSECTION))
12028 goto nla_put_failure;
12029 } else {
12030 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12031 NL80211_REGDOM_TYPE_COUNTRY) ||
12032 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
12033 request->alpha2))
12034 goto nla_put_failure;
12035 }
12036
ad30ca2c
AN		 12037 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
12038 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
12039
12040 if (wiphy &&
12041 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
12042 goto nla_put_failure;
1bdd716c
AN		 12043
12044 if (wiphy &&
12045 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
12046 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
12047 goto nla_put_failure;
ad30ca2c 12048 }
73d54c9e 12049
b0d7aa59
JD		 12050 return true;
12051
12052nla_put_failure:
12053 return false;
12054}
12055
12056/*
12057 * This can happen on global regulatory changes or device specific settings
12058 * based on custom regulatory domains.
12059 */
12060void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
12061 struct regulatory_request *request)
12062{
12063 struct sk_buff *msg;
12064 void *hdr;
12065
12066 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12067 if (!msg)
12068 return;
12069
12070 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
12071 if (!hdr) {
12072 nlmsg_free(msg);
12073 return;
12074 }
12075
12076 if (nl80211_reg_change_event_fill(msg, request) == false)
12077 goto nla_put_failure;
12078
3b7b72ee 12079 genlmsg_end(msg, hdr);
73d54c9e 12080
bc43b28c 12081 rcu_read_lock();
68eb5503 12082 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12083 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 12084 rcu_read_unlock();
73d54c9e
LR		 12085
12086 return;
12087
12088nla_put_failure:
12089 genlmsg_cancel(msg, hdr);
12090 nlmsg_free(msg);
12091}
12092
6039f6d2
JM		 12093static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
12094 struct net_device *netdev,
12095 const u8 *buf, size_t len,
b0b6aa2c
EP		 12096 enum nl80211_commands cmd, gfp_t gfp,
12097 int uapsd_queues)
6039f6d2
JM		 12098{
12099 struct sk_buff *msg;
12100 void *hdr;
12101
e6d6e342 12102 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 12103 if (!msg)
12104 return;
12105
12106 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12107 if (!hdr) {
12108 nlmsg_free(msg);
12109 return;
12110 }
12111
9360ffd1
DM		 12112 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12113 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12114 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
12115 goto nla_put_failure;
6039f6d2 12116
b0b6aa2c
EP		 12117 if (uapsd_queues >= 0) {
12118 struct nlattr *nla_wmm =
12119 nla_nest_start(msg, NL80211_ATTR_STA_WME);
12120 if (!nla_wmm)
12121 goto nla_put_failure;
12122
12123 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
12124 uapsd_queues))
12125 goto nla_put_failure;
12126
12127 nla_nest_end(msg, nla_wmm);
12128 }
12129
3b7b72ee 12130 genlmsg_end(msg, hdr);
6039f6d2 12131
68eb5503 12132 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12133 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 12134 return;
12135
12136 nla_put_failure:
12137 genlmsg_cancel(msg, hdr);
12138 nlmsg_free(msg);
12139}
12140
12141void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12142 struct net_device *netdev, const u8 *buf,
12143 size_t len, gfp_t gfp)
6039f6d2
JM		 12144{
12145 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12146 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 12147}
12148
12149void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
12150 struct net_device *netdev, const u8 *buf,
b0b6aa2c 12151 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 12152{
e6d6e342 12153 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12154 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 12155}
12156
53b46b84 12157void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12158 struct net_device *netdev, const u8 *buf,
12159 size_t len, gfp_t gfp)
6039f6d2
JM		 12160{
12161 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12162 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 12163}
12164
53b46b84
JM		 12165void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
12166 struct net_device *netdev, const u8 *buf,
e6d6e342 12167 size_t len, gfp_t gfp)
6039f6d2
JM		 12168{
12169 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 12170 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 12171}
12172
6ff57cf8
JB		 12173void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
12174 size_t len)
cf4e594e 12175{
947add36
JB		 12176 struct wireless_dev *wdev = dev->ieee80211_ptr;
12177 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12178 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 12179 const struct ieee80211_mgmt *mgmt = (void *)buf;
12180 u32 cmd;
947add36 12181
6ff57cf8
JB		 12182 if (WARN_ON(len < 2))
12183 return;
cf4e594e 12184
6ff57cf8
JB		 12185 if (ieee80211_is_deauth(mgmt->frame_control))
12186 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
12187 else
12188 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 12189
6ff57cf8 12190 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 12191 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 12192}
6ff57cf8 12193EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 12194
1b06bb40
LR		 12195static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
12196 struct net_device *netdev, int cmd,
e6d6e342 12197 const u8 *addr, gfp_t gfp)
1965c853
JM		 12198{
12199 struct sk_buff *msg;
12200 void *hdr;
12201
e6d6e342 12202 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 12203 if (!msg)
12204 return;
12205
12206 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12207 if (!hdr) {
12208 nlmsg_free(msg);
12209 return;
12210 }
12211
9360ffd1
DM		 12212 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12213 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12214 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
12215 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12216 goto nla_put_failure;
1965c853 12217
3b7b72ee 12218 genlmsg_end(msg, hdr);
1965c853 12219
68eb5503 12220 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12221 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 12222 return;
12223
12224 nla_put_failure:
12225 genlmsg_cancel(msg, hdr);
12226 nlmsg_free(msg);
12227}
12228
12229void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12230 struct net_device *netdev, const u8 *addr,
12231 gfp_t gfp)
1965c853
JM		 12232{
12233 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 12234 addr, gfp);
1965c853
JM		 12235}
12236
12237void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12238 struct net_device *netdev, const u8 *addr,
12239 gfp_t gfp)
1965c853 12240{
e6d6e342
JB		 12241 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
12242 addr, gfp);
1965c853
JM		 12243}
12244
b23aa676
SO		 12245void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
12246 struct net_device *netdev, const u8 *bssid,
12247 const u8 *req_ie, size_t req_ie_len,
12248 const u8 *resp_ie, size_t resp_ie_len,
bf1ecd21 12249 int status, gfp_t gfp)
b23aa676
SO		 12250{
12251 struct sk_buff *msg;
12252 void *hdr;
12253
58050fce 12254 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12255 if (!msg)
12256 return;
12257
12258 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
12259 if (!hdr) {
12260 nlmsg_free(msg);
12261 return;
12262 }
12263
9360ffd1
DM		 12264 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12265 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12266 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
bf1ecd21
JM		 12267 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
12268 status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
12269 status) ||
12270 (status < 0 && nla_put_flag(msg, NL80211_ATTR_TIMED_OUT)) ||
9360ffd1
DM		 12271 (req_ie &&
12272 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12273 (resp_ie &&
12274 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12275 goto nla_put_failure;
b23aa676 12276
3b7b72ee 12277 genlmsg_end(msg, hdr);
b23aa676 12278
68eb5503 12279 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12280 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12281 return;
12282
12283 nla_put_failure:
12284 genlmsg_cancel(msg, hdr);
12285 nlmsg_free(msg);
b23aa676
SO		 12286}
12287
12288void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
12289 struct net_device *netdev, const u8 *bssid,
12290 const u8 *req_ie, size_t req_ie_len,
12291 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
12292{
12293 struct sk_buff *msg;
12294 void *hdr;
12295
58050fce 12296 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12297 if (!msg)
12298 return;
12299
12300 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
12301 if (!hdr) {
12302 nlmsg_free(msg);
12303 return;
12304 }
12305
9360ffd1
DM		 12306 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12307 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12308 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
12309 (req_ie &&
12310 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12311 (resp_ie &&
12312 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12313 goto nla_put_failure;
b23aa676 12314
3b7b72ee 12315 genlmsg_end(msg, hdr);
b23aa676 12316
68eb5503 12317 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12318 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12319 return;
12320
12321 nla_put_failure:
12322 genlmsg_cancel(msg, hdr);
12323 nlmsg_free(msg);
b23aa676
SO		 12324}
12325
12326void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
12327 struct net_device *netdev, u16 reason,
667503dd 12328 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 12329{
12330 struct sk_buff *msg;
12331 void *hdr;
12332
58050fce 12333 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 12334 if (!msg)
12335 return;
12336
12337 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
12338 if (!hdr) {
12339 nlmsg_free(msg);
12340 return;
12341 }
12342
9360ffd1
DM		 12343 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12344 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12345 (from_ap && reason &&
12346 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
12347 (from_ap &&
12348 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
12349 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
12350 goto nla_put_failure;
b23aa676 12351
3b7b72ee 12352 genlmsg_end(msg, hdr);
b23aa676 12353
68eb5503 12354 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12355 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 12356 return;
12357
12358 nla_put_failure:
12359 genlmsg_cancel(msg, hdr);
12360 nlmsg_free(msg);
b23aa676
SO		 12361}
12362
04a773ad
JB		 12363void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
12364 struct net_device *netdev, const u8 *bssid,
12365 gfp_t gfp)
12366{
12367 struct sk_buff *msg;
12368 void *hdr;
12369
fd2120ca 12370 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 12371 if (!msg)
12372 return;
12373
12374 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
12375 if (!hdr) {
12376 nlmsg_free(msg);
12377 return;
12378 }
12379
9360ffd1
DM		 12380 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12381 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12382 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12383 goto nla_put_failure;
04a773ad 12384
3b7b72ee 12385 genlmsg_end(msg, hdr);
04a773ad 12386
68eb5503 12387 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12388 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 12389 return;
12390
12391 nla_put_failure:
12392 genlmsg_cancel(msg, hdr);
12393 nlmsg_free(msg);
12394}
12395
947add36
JB		 12396void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12397 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 12398{
947add36 12399 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12400 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 12401 struct sk_buff *msg;
12402 void *hdr;
12403
947add36
JB		 12404 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12405 return;
12406
12407 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12408
c93b5e71
JC		 12409 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12410 if (!msg)
12411 return;
12412
12413 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12414 if (!hdr) {
12415 nlmsg_free(msg);
12416 return;
12417 }
12418
9360ffd1 12419 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 12420 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12421 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 12422 (ie_len && ie &&
12423 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12424 goto nla_put_failure;
c93b5e71 12425
3b7b72ee 12426 genlmsg_end(msg, hdr);
c93b5e71 12427
68eb5503 12428 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12429 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 12430 return;
12431
12432 nla_put_failure:
12433 genlmsg_cancel(msg, hdr);
12434 nlmsg_free(msg);
12435}
947add36 12436EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 12437
a3b8b056
JM		 12438void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12439 struct net_device *netdev, const u8 *addr,
12440 enum nl80211_key_type key_type, int key_id,
e6d6e342 12441 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 12442{
12443 struct sk_buff *msg;
12444 void *hdr;
12445
e6d6e342 12446 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 12447 if (!msg)
12448 return;
12449
12450 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12451 if (!hdr) {
12452 nlmsg_free(msg);
12453 return;
12454 }
12455
9360ffd1
DM		 12456 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12457 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12458 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12459 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12460 (key_id != -1 &&
12461 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12462 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12463 goto nla_put_failure;
a3b8b056 12464
3b7b72ee 12465 genlmsg_end(msg, hdr);
a3b8b056 12466
68eb5503 12467 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12468 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 12469 return;
12470
12471 nla_put_failure:
12472 genlmsg_cancel(msg, hdr);
12473 nlmsg_free(msg);
12474}
12475
6bad8766
LR		 12476void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12477 struct ieee80211_channel *channel_before,
12478 struct ieee80211_channel *channel_after)
12479{
12480 struct sk_buff *msg;
12481 void *hdr;
12482 struct nlattr *nl_freq;
12483
fd2120ca 12484 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 12485 if (!msg)
12486 return;
12487
12488 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12489 if (!hdr) {
12490 nlmsg_free(msg);
12491 return;
12492 }
12493
12494 /*
12495 * Since we are applying the beacon hint to a wiphy we know its
12496 * wiphy_idx is valid
12497 */
9360ffd1
DM		 12498 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12499 goto nla_put_failure;
6bad8766
LR		 12500
12501 /* Before */
12502 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12503 if (!nl_freq)
12504 goto nla_put_failure;
cdc89b97 12505 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 12506 goto nla_put_failure;
12507 nla_nest_end(msg, nl_freq);
12508
12509 /* After */
12510 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12511 if (!nl_freq)
12512 goto nla_put_failure;
cdc89b97 12513 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 12514 goto nla_put_failure;
12515 nla_nest_end(msg, nl_freq);
12516
3b7b72ee 12517 genlmsg_end(msg, hdr);
6bad8766 12518
463d0183 12519 rcu_read_lock();
68eb5503 12520 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12521 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 12522 rcu_read_unlock();
6bad8766
LR		 12523
12524 return;
12525
12526nla_put_failure:
12527 genlmsg_cancel(msg, hdr);
12528 nlmsg_free(msg);
12529}
12530
9588bbd5
JM		 12531static void nl80211_send_remain_on_chan_event(
12532 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 12533 struct wireless_dev *wdev, u64 cookie,
9588bbd5 12534 struct ieee80211_channel *chan,
9588bbd5
JM		 12535 unsigned int duration, gfp_t gfp)
12536{
12537 struct sk_buff *msg;
12538 void *hdr;
12539
12540 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12541 if (!msg)
12542 return;
12543
12544 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12545 if (!hdr) {
12546 nlmsg_free(msg);
12547 return;
12548 }
12549
9360ffd1 12550 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12551 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12552 wdev->netdev->ifindex)) ||
2dad624e
ND		 12553 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12554 NL80211_ATTR_PAD) ||
9360ffd1 12555 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 12556 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12557 NL80211_CHAN_NO_HT) ||
2dad624e
ND		 12558 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12559 NL80211_ATTR_PAD))
9360ffd1 12560 goto nla_put_failure;
9588bbd5 12561
9360ffd1
DM		 12562 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12563 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12564 goto nla_put_failure;
9588bbd5 12565
3b7b72ee 12566 genlmsg_end(msg, hdr);
9588bbd5 12567
68eb5503 12568 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12569 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 12570 return;
12571
12572 nla_put_failure:
12573 genlmsg_cancel(msg, hdr);
12574 nlmsg_free(msg);
12575}
12576
947add36
JB		 12577void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12578 struct ieee80211_channel *chan,
12579 unsigned int duration, gfp_t gfp)
9588bbd5 12580{
947add36 12581 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12582 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12583
12584 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 12585 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 12586 rdev, wdev, cookie, chan,
42d97a59 12587 duration, gfp);
9588bbd5 12588}
947add36 12589EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 12590
947add36
JB		 12591void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12592 struct ieee80211_channel *chan,
12593 gfp_t gfp)
9588bbd5 12594{
947add36 12595 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12596 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12597
12598 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 12599 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 12600 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 12601}
947add36 12602EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 12603
947add36
JB		 12604void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12605 struct station_info *sinfo, gfp_t gfp)
98b62183 12606{
947add36 12607 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12608 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 12609 struct sk_buff *msg;
12610
947add36
JB		 12611 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12612
58050fce 12613 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 12614 if (!msg)
12615 return;
12616
cf5ead82 12617 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 12618 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 12619 nlmsg_free(msg);
12620 return;
12621 }
12622
68eb5503 12623 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12624 NL80211_MCGRP_MLME, gfp);
98b62183 12625}
947add36 12626EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 12627
cf5ead82
JB		 12628void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12629 struct station_info *sinfo, gfp_t gfp)
ec15e68b 12630{
947add36 12631 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12632 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 12633 struct sk_buff *msg;
cf5ead82
JB		 12634 struct station_info empty_sinfo = {};
12635
12636 if (!sinfo)
12637 sinfo = &empty_sinfo;
ec15e68b 12638
947add36
JB		 12639 trace_cfg80211_del_sta(dev, mac_addr);
12640
58050fce 12641 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 12642 if (!msg)
12643 return;
12644
cf5ead82 12645 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 12646 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 12647 nlmsg_free(msg);
12648 return;
12649 }
12650
68eb5503 12651 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12652 NL80211_MCGRP_MLME, gfp);
ec15e68b 12653}
cf5ead82 12654EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 12655
947add36
JB		 12656void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12657 enum nl80211_connect_failed_reason reason,
12658 gfp_t gfp)
ed44a951 12659{
947add36 12660 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12661 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 12662 struct sk_buff *msg;
12663 void *hdr;
12664
12665 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12666 if (!msg)
12667 return;
12668
12669 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12670 if (!hdr) {
12671 nlmsg_free(msg);
12672 return;
12673 }
12674
12675 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12676 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12677 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12678 goto nla_put_failure;
12679
12680 genlmsg_end(msg, hdr);
12681
68eb5503 12682 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12683 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 12684 return;
12685
12686 nla_put_failure:
12687 genlmsg_cancel(msg, hdr);
12688 nlmsg_free(msg);
12689}
947add36 12690EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 12691
b92ab5d8
JB		 12692static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12693 const u8 *addr, gfp_t gfp)
28946da7
JB		 12694{
12695 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12696 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 12697 struct sk_buff *msg;
12698 void *hdr;
15e47304 12699 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 12700
15e47304 12701 if (!nlportid)
28946da7
JB		 12702 return false;
12703
12704 msg = nlmsg_new(100, gfp);
12705 if (!msg)
12706 return true;
12707
b92ab5d8 12708 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 12709 if (!hdr) {
12710 nlmsg_free(msg);
12711 return true;
12712 }
12713
9360ffd1
DM		 12714 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12715 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12716 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12717 goto nla_put_failure;
28946da7 12718
9c90a9f6 12719 genlmsg_end(msg, hdr);
15e47304 12720 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 12721 return true;
12722
12723 nla_put_failure:
12724 genlmsg_cancel(msg, hdr);
12725 nlmsg_free(msg);
12726 return true;
12727}
12728
947add36
JB		 12729bool cfg80211_rx_spurious_frame(struct net_device *dev,
12730 const u8 *addr, gfp_t gfp)
b92ab5d8 12731{
947add36
JB		 12732 struct wireless_dev *wdev = dev->ieee80211_ptr;
12733 bool ret;
12734
12735 trace_cfg80211_rx_spurious_frame(dev, addr);
12736
12737 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12738 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12739 trace_cfg80211_return_bool(false);
12740 return false;
12741 }
12742 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12743 addr, gfp);
12744 trace_cfg80211_return_bool(ret);
12745 return ret;
b92ab5d8 12746}
947add36 12747EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 12748
947add36
JB		 12749bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12750 const u8 *addr, gfp_t gfp)
b92ab5d8 12751{
947add36
JB		 12752 struct wireless_dev *wdev = dev->ieee80211_ptr;
12753 bool ret;
12754
12755 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12756
12757 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12758 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12759 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12760 trace_cfg80211_return_bool(false);
12761 return false;
12762 }
12763 ret = __nl80211_unexpected_frame(dev,
12764 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12765 addr, gfp);
12766 trace_cfg80211_return_bool(ret);
12767 return ret;
b92ab5d8 12768}
947add36 12769EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 12770
2e161f78 12771int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 12772 struct wireless_dev *wdev, u32 nlportid,
804483e9 12773 int freq, int sig_dbm,
19504cf5 12774 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 12775{
71bbc994 12776 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12777 struct sk_buff *msg;
12778 void *hdr;
026331c4
JM		 12779
12780 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12781 if (!msg)
12782 return -ENOMEM;
12783
2e161f78 12784 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 12785 if (!hdr) {
12786 nlmsg_free(msg);
12787 return -ENOMEM;
12788 }
12789
9360ffd1 12790 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12791 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12792 netdev->ifindex)) ||
2dad624e
ND		 12793 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12794 NL80211_ATTR_PAD) ||
9360ffd1
DM		 12795 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12796 (sig_dbm &&
12797 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 12798 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12799 (flags &&
12800 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 12801 goto nla_put_failure;
026331c4 12802
3b7b72ee 12803 genlmsg_end(msg, hdr);
026331c4 12804
15e47304 12805 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 12806
12807 nla_put_failure:
12808 genlmsg_cancel(msg, hdr);
12809 nlmsg_free(msg);
12810 return -ENOBUFS;
12811}
12812
947add36
JB		 12813void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12814 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 12815{
947add36 12816 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12817 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 12818 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12819 struct sk_buff *msg;
12820 void *hdr;
12821
947add36
JB		 12822 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12823
026331c4
JM		 12824 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12825 if (!msg)
12826 return;
12827
2e161f78 12828 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 12829 if (!hdr) {
12830 nlmsg_free(msg);
12831 return;
12832 }
12833
9360ffd1 12834 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12835 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12836 netdev->ifindex)) ||
2dad624e
ND		 12837 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12838 NL80211_ATTR_PAD) ||
9360ffd1 12839 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
2dad624e
ND		 12840 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12841 NL80211_ATTR_PAD) ||
9360ffd1
DM		 12842 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12843 goto nla_put_failure;
026331c4 12844
3b7b72ee 12845 genlmsg_end(msg, hdr);
026331c4 12846
68eb5503 12847 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12848 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 12849 return;
12850
12851 nla_put_failure:
12852 genlmsg_cancel(msg, hdr);
12853 nlmsg_free(msg);
12854}
947add36 12855EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 12856
5b97f49d
JB		 12857static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12858 const char *mac, gfp_t gfp)
d6dc1a38 12859{
947add36 12860 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 12861 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12862 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12863 void **cb;
947add36 12864
d6dc1a38 12865 if (!msg)
5b97f49d 12866 return NULL;
d6dc1a38 12867
5b97f49d
JB		 12868 cb = (void **)msg->cb;
12869
12870 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12871 if (!cb[0]) {
d6dc1a38 12872 nlmsg_free(msg);
5b97f49d 12873 return NULL;
d6dc1a38
JO		 12874 }
12875
9360ffd1 12876 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12877 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 12878 goto nla_put_failure;
d6dc1a38 12879
5b97f49d 12880 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 12881 goto nla_put_failure;
12882
5b97f49d
JB		 12883 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12884 if (!cb[1])
9360ffd1 12885 goto nla_put_failure;
d6dc1a38 12886
5b97f49d 12887 cb[2] = rdev;
d6dc1a38 12888
5b97f49d
JB		 12889 return msg;
12890 nla_put_failure:
12891 nlmsg_free(msg);
12892 return NULL;
12893}
12894
12895static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12896{
12897 void **cb = (void **)msg->cb;
12898 struct cfg80211_registered_device *rdev = cb[2];
12899
12900 nla_nest_end(msg, cb[1]);
12901 genlmsg_end(msg, cb[0]);
12902
12903 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 12904
68eb5503 12905 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12906 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 12907}
12908
12909void cfg80211_cqm_rssi_notify(struct net_device *dev,
12910 enum nl80211_cqm_rssi_threshold_event rssi_event,
12911 gfp_t gfp)
12912{
12913 struct sk_buff *msg;
12914
12915 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12916
98f03342
JB		 12917 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12918 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12919 return;
12920
5b97f49d
JB		 12921 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12922 if (!msg)
12923 return;
12924
12925 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12926 rssi_event))
12927 goto nla_put_failure;
12928
12929 cfg80211_send_cqm(msg, gfp);
12930
d6dc1a38
JO		 12931 return;
12932
12933 nla_put_failure:
d6dc1a38
JO		 12934 nlmsg_free(msg);
12935}
947add36 12936EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12937
5b97f49d
JB		 12938void cfg80211_cqm_txe_notify(struct net_device *dev,
12939 const u8 *peer, u32 num_packets,
12940 u32 rate, u32 intvl, gfp_t gfp)
12941{
12942 struct sk_buff *msg;
12943
12944 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12945 if (!msg)
12946 return;
12947
12948 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12949 goto nla_put_failure;
12950
12951 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12952 goto nla_put_failure;
12953
12954 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12955 goto nla_put_failure;
12956
12957 cfg80211_send_cqm(msg, gfp);
12958 return;
12959
12960 nla_put_failure:
12961 nlmsg_free(msg);
12962}
12963EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12964
12965void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12966 const u8 *peer, u32 num_packets, gfp_t gfp)
12967{
12968 struct sk_buff *msg;
12969
12970 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12971
12972 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12973 if (!msg)
12974 return;
12975
12976 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12977 goto nla_put_failure;
12978
12979 cfg80211_send_cqm(msg, gfp);
12980 return;
12981
12982 nla_put_failure:
12983 nlmsg_free(msg);
12984}
12985EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12986
98f03342
JB		 12987void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12988{
12989 struct sk_buff *msg;
12990
12991 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12992 if (!msg)
12993 return;
12994
12995 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12996 goto nla_put_failure;
12997
12998 cfg80211_send_cqm(msg, gfp);
12999 return;
13000
13001 nla_put_failure:
13002 nlmsg_free(msg);
13003}
13004EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
13005
947add36
JB		 13006static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
13007 struct net_device *netdev, const u8 *bssid,
13008 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 13009{
13010 struct sk_buff *msg;
13011 struct nlattr *rekey_attr;
13012 void *hdr;
13013
58050fce 13014 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 13015 if (!msg)
13016 return;
13017
13018 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
13019 if (!hdr) {
13020 nlmsg_free(msg);
13021 return;
13022 }
13023
9360ffd1
DM		 13024 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13025 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13026 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13027 goto nla_put_failure;
e5497d76
JB		 13028
13029 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
13030 if (!rekey_attr)
13031 goto nla_put_failure;
13032
9360ffd1
DM		 13033 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
13034 NL80211_REPLAY_CTR_LEN, replay_ctr))
13035 goto nla_put_failure;
e5497d76
JB		 13036
13037 nla_nest_end(msg, rekey_attr);
13038
3b7b72ee 13039 genlmsg_end(msg, hdr);
e5497d76 13040
68eb5503 13041 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13042 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 13043 return;
13044
13045 nla_put_failure:
13046 genlmsg_cancel(msg, hdr);
13047 nlmsg_free(msg);
13048}
13049
947add36
JB		 13050void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
13051 const u8 *replay_ctr, gfp_t gfp)
13052{
13053 struct wireless_dev *wdev = dev->ieee80211_ptr;
13054 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13055 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13056
13057 trace_cfg80211_gtk_rekey_notify(dev, bssid);
13058 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
13059}
13060EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
13061
13062static void
13063nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
13064 struct net_device *netdev, int index,
13065 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 13066{
13067 struct sk_buff *msg;
13068 struct nlattr *attr;
13069 void *hdr;
13070
58050fce 13071 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 13072 if (!msg)
13073 return;
13074
13075 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
13076 if (!hdr) {
13077 nlmsg_free(msg);
13078 return;
13079 }
13080
9360ffd1
DM		 13081 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13082 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13083 goto nla_put_failure;
c9df56b4
JM		 13084
13085 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
13086 if (!attr)
13087 goto nla_put_failure;
13088
9360ffd1
DM		 13089 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
13090 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
13091 (preauth &&
13092 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
13093 goto nla_put_failure;
c9df56b4
JM		 13094
13095 nla_nest_end(msg, attr);
13096
3b7b72ee 13097 genlmsg_end(msg, hdr);
c9df56b4 13098
68eb5503 13099 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13100 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 13101 return;
13102
13103 nla_put_failure:
13104 genlmsg_cancel(msg, hdr);
13105 nlmsg_free(msg);
13106}
13107
947add36
JB		 13108void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
13109 const u8 *bssid, bool preauth, gfp_t gfp)
13110{
13111 struct wireless_dev *wdev = dev->ieee80211_ptr;
13112 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13113 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 13114
13115 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
13116 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
13117}
13118EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
13119
13120static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
13121 struct net_device *netdev,
13122 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 13123 gfp_t gfp,
13124 enum nl80211_commands notif,
13125 u8 count)
5314526b
TP		 13126{
13127 struct sk_buff *msg;
13128 void *hdr;
13129
58050fce 13130 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 13131 if (!msg)
13132 return;
13133
f8d7552e 13134 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 13135 if (!hdr) {
13136 nlmsg_free(msg);
13137 return;
13138 }
13139
683b6d3b
JB		 13140 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13141 goto nla_put_failure;
13142
13143 if (nl80211_send_chandef(msg, chandef))
7eab0f64 13144 goto nla_put_failure;
5314526b 13145
f8d7552e
LC		 13146 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
13147 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
13148 goto nla_put_failure;
13149
5314526b
TP		 13150 genlmsg_end(msg, hdr);
13151
68eb5503 13152 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13153 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 13154 return;
13155
13156 nla_put_failure:
13157 genlmsg_cancel(msg, hdr);
13158 nlmsg_free(msg);
13159}
13160
947add36
JB		 13161void cfg80211_ch_switch_notify(struct net_device *dev,
13162 struct cfg80211_chan_def *chandef)
84f10708 13163{
947add36
JB		 13164 struct wireless_dev *wdev = dev->ieee80211_ptr;
13165 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13166 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 13167
e487eaeb 13168 ASSERT_WDEV_LOCK(wdev);
947add36 13169
e487eaeb 13170 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 13171
9e0e2961 13172 wdev->chandef = *chandef;
96f55f12 13173 wdev->preset_chandef = *chandef;
f8d7552e
LC		 13174 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13175 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 13176}
13177EXPORT_SYMBOL(cfg80211_ch_switch_notify);
13178
f8d7552e
LC		 13179void cfg80211_ch_switch_started_notify(struct net_device *dev,
13180 struct cfg80211_chan_def *chandef,
13181 u8 count)
13182{
13183 struct wireless_dev *wdev = dev->ieee80211_ptr;
13184 struct wiphy *wiphy = wdev->wiphy;
13185 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13186
13187 trace_cfg80211_ch_switch_started_notify(dev, chandef);
13188
13189 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13190 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
13191}
13192EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
13193
04f39047
SW		 13194void
13195nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 13196 const struct cfg80211_chan_def *chandef,
04f39047
SW		 13197 enum nl80211_radar_event event,
13198 struct net_device *netdev, gfp_t gfp)
13199{
13200 struct sk_buff *msg;
13201 void *hdr;
13202
13203 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13204 if (!msg)
13205 return;
13206
13207 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
13208 if (!hdr) {
13209 nlmsg_free(msg);
13210 return;
13211 }
13212
13213 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
13214 goto nla_put_failure;
13215
13216 /* NOP and radar events don't need a netdev parameter */
13217 if (netdev) {
13218 struct wireless_dev *wdev = netdev->ieee80211_ptr;
13219
13220 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
2dad624e
ND		 13221 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13222 NL80211_ATTR_PAD))
04f39047
SW		 13223 goto nla_put_failure;
13224 }
13225
13226 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
13227 goto nla_put_failure;
13228
13229 if (nl80211_send_chandef(msg, chandef))
13230 goto nla_put_failure;
13231
9c90a9f6 13232 genlmsg_end(msg, hdr);
04f39047 13233
68eb5503 13234 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13235 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 13236 return;
13237
13238 nla_put_failure:
13239 genlmsg_cancel(msg, hdr);
13240 nlmsg_free(msg);
13241}
13242
7f6cf311
JB		 13243void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
13244 u64 cookie, bool acked, gfp_t gfp)
13245{
13246 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13247 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 13248 struct sk_buff *msg;
13249 void *hdr;
7f6cf311 13250
4ee3e063
BL		 13251 trace_cfg80211_probe_status(dev, addr, cookie, acked);
13252
58050fce 13253 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 13254
7f6cf311
JB		 13255 if (!msg)
13256 return;
13257
13258 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
13259 if (!hdr) {
13260 nlmsg_free(msg);
13261 return;
13262 }
13263
9360ffd1
DM		 13264 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13265 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13266 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
2dad624e
ND		 13267 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13268 NL80211_ATTR_PAD) ||
9360ffd1
DM		 13269 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
13270 goto nla_put_failure;
7f6cf311 13271
9c90a9f6 13272 genlmsg_end(msg, hdr);
7f6cf311 13273
68eb5503 13274 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13275 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 13276 return;
13277
13278 nla_put_failure:
13279 genlmsg_cancel(msg, hdr);
13280 nlmsg_free(msg);
13281}
13282EXPORT_SYMBOL(cfg80211_probe_status);
13283
5e760230
JB		 13284void cfg80211_report_obss_beacon(struct wiphy *wiphy,
13285 const u8 *frame, size_t len,
37c73b5f 13286 int freq, int sig_dbm)
5e760230 13287{
f26cbf40 13288 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 13289 struct sk_buff *msg;
13290 void *hdr;
37c73b5f 13291 struct cfg80211_beacon_registration *reg;
5e760230 13292
4ee3e063
BL		 13293 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
13294
37c73b5f
BG		 13295 spin_lock_bh(&rdev->beacon_registrations_lock);
13296 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
13297 msg = nlmsg_new(len + 100, GFP_ATOMIC);
13298 if (!msg) {
13299 spin_unlock_bh(&rdev->beacon_registrations_lock);
13300 return;
13301 }
5e760230 13302
37c73b5f
BG		 13303 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
13304 if (!hdr)
13305 goto nla_put_failure;
5e760230 13306
37c73b5f
BG		 13307 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13308 (freq &&
13309 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
13310 (sig_dbm &&
13311 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
13312 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
13313 goto nla_put_failure;
5e760230 13314
37c73b5f 13315 genlmsg_end(msg, hdr);
5e760230 13316
37c73b5f
BG		 13317 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
13318 }
13319 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 13320 return;
13321
13322 nla_put_failure:
37c73b5f
BG		 13323 spin_unlock_bh(&rdev->beacon_registrations_lock);
13324 if (hdr)
13325 genlmsg_cancel(msg, hdr);
5e760230
JB		 13326 nlmsg_free(msg);
13327}
13328EXPORT_SYMBOL(cfg80211_report_obss_beacon);
13329
cd8f7cb4 13330#ifdef CONFIG_PM
8cd4d456
LC		 13331static int cfg80211_net_detect_results(struct sk_buff *msg,
13332 struct cfg80211_wowlan_wakeup *wakeup)
13333{
13334 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
13335 struct nlattr *nl_results, *nl_match, *nl_freqs;
13336 int i, j;
13337
13338 nl_results = nla_nest_start(
13339 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
13340 if (!nl_results)
13341 return -EMSGSIZE;
13342
13343 for (i = 0; i < nd->n_matches; i++) {
13344 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
13345
13346 nl_match = nla_nest_start(msg, i);
13347 if (!nl_match)
13348 break;
13349
13350 /* The SSID attribute is optional in nl80211, but for
13351 * simplicity reasons it's always present in the
13352 * cfg80211 structure. If a driver can't pass the
13353 * SSID, that needs to be changed. A zero length SSID
13354 * is still a valid SSID (wildcard), so it cannot be
13355 * used for this purpose.
13356 */
13357 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
13358 match->ssid.ssid)) {
13359 nla_nest_cancel(msg, nl_match);
13360 goto out;
13361 }
13362
13363 if (match->n_channels) {
13364 nl_freqs = nla_nest_start(
13365 msg, NL80211_ATTR_SCAN_FREQUENCIES);
13366 if (!nl_freqs) {
13367 nla_nest_cancel(msg, nl_match);
13368 goto out;
13369 }
13370
13371 for (j = 0; j < match->n_channels; j++) {
5528fae8 13372 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 13373 nla_nest_cancel(msg, nl_freqs);
13374 nla_nest_cancel(msg, nl_match);
13375 goto out;
13376 }
13377 }
13378
13379 nla_nest_end(msg, nl_freqs);
13380 }
13381
13382 nla_nest_end(msg, nl_match);
13383 }
13384
13385out:
13386 nla_nest_end(msg, nl_results);
13387 return 0;
13388}
13389
cd8f7cb4
JB		 13390void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
13391 struct cfg80211_wowlan_wakeup *wakeup,
13392 gfp_t gfp)
13393{
f26cbf40 13394 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 13395 struct sk_buff *msg;
13396 void *hdr;
9c90a9f6 13397 int size = 200;
cd8f7cb4
JB		 13398
13399 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
13400
13401 if (wakeup)
13402 size += wakeup->packet_present_len;
13403
13404 msg = nlmsg_new(size, gfp);
13405 if (!msg)
13406 return;
13407
13408 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13409 if (!hdr)
13410 goto free_msg;
13411
13412 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 13413 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13414 NL80211_ATTR_PAD))
cd8f7cb4
JB		 13415 goto free_msg;
13416
13417 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13418 wdev->netdev->ifindex))
13419 goto free_msg;
13420
13421 if (wakeup) {
13422 struct nlattr *reasons;
13423
13424 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 13425 if (!reasons)
13426 goto free_msg;
cd8f7cb4
JB		 13427
13428 if (wakeup->disconnect &&
13429 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13430 goto free_msg;
13431 if (wakeup->magic_pkt &&
13432 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13433 goto free_msg;
13434 if (wakeup->gtk_rekey_failure &&
13435 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13436 goto free_msg;
13437 if (wakeup->eap_identity_req &&
13438 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13439 goto free_msg;
13440 if (wakeup->four_way_handshake &&
13441 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13442 goto free_msg;
13443 if (wakeup->rfkill_release &&
13444 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13445 goto free_msg;
13446
13447 if (wakeup->pattern_idx >= 0 &&
13448 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13449 wakeup->pattern_idx))
13450 goto free_msg;
13451
ae917c9f
JB		 13452 if (wakeup->tcp_match &&
13453 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13454 goto free_msg;
2a0e047e 13455
ae917c9f
JB		 13456 if (wakeup->tcp_connlost &&
13457 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13458 goto free_msg;
2a0e047e 13459
ae917c9f
JB		 13460 if (wakeup->tcp_nomoretokens &&
13461 nla_put_flag(msg,
13462 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13463 goto free_msg;
2a0e047e 13464
cd8f7cb4
JB		 13465 if (wakeup->packet) {
13466 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13467 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13468
13469 if (!wakeup->packet_80211) {
13470 pkt_attr =
13471 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13472 len_attr =
13473 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13474 }
13475
13476 if (wakeup->packet_len &&
13477 nla_put_u32(msg, len_attr, wakeup->packet_len))
13478 goto free_msg;
13479
13480 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13481 wakeup->packet))
13482 goto free_msg;
13483 }
13484
8cd4d456
LC		 13485 if (wakeup->net_detect &&
13486 cfg80211_net_detect_results(msg, wakeup))
13487 goto free_msg;
13488
cd8f7cb4
JB		 13489 nla_nest_end(msg, reasons);
13490 }
13491
9c90a9f6 13492 genlmsg_end(msg, hdr);
cd8f7cb4 13493
68eb5503 13494 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13495 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 13496 return;
13497
13498 free_msg:
13499 nlmsg_free(msg);
13500}
13501EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13502#endif
13503
3475b094
JM		 13504void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13505 enum nl80211_tdls_operation oper,
13506 u16 reason_code, gfp_t gfp)
13507{
13508 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13509 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 13510 struct sk_buff *msg;
13511 void *hdr;
3475b094
JM		 13512
13513 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13514 reason_code);
13515
13516 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13517 if (!msg)
13518 return;
13519
13520 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13521 if (!hdr) {
13522 nlmsg_free(msg);
13523 return;
13524 }
13525
13526 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13527 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13528 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13529 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13530 (reason_code > 0 &&
13531 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13532 goto nla_put_failure;
13533
9c90a9f6 13534 genlmsg_end(msg, hdr);
3475b094 13535
68eb5503 13536 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13537 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 13538 return;
13539
13540 nla_put_failure:
13541 genlmsg_cancel(msg, hdr);
13542 nlmsg_free(msg);
13543}
13544EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13545
026331c4
JM		 13546static int nl80211_netlink_notify(struct notifier_block * nb,
13547 unsigned long state,
13548 void *_notify)
13549{
13550 struct netlink_notify *notify = _notify;
13551 struct cfg80211_registered_device *rdev;
13552 struct wireless_dev *wdev;
37c73b5f 13553 struct cfg80211_beacon_registration *reg, *tmp;
026331c4 13554
8f815cdd 13555 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
026331c4
JM		 13556 return NOTIFY_DONE;
13557
13558 rcu_read_lock();
13559
5e760230 13560 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 13561 bool schedule_destroy_work = false;
93a1e86c
JR		 13562 bool schedule_scan_stop = false;
13563 struct cfg80211_sched_scan_request *sched_scan_req =
13564 rcu_dereference(rdev->sched_scan_req);
13565
13566 if (sched_scan_req && notify->portid &&
13567 sched_scan_req->owner_nlportid == notify->portid)
13568 schedule_scan_stop = true;
78f22b6a 13569
53873f13 13570 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15e47304 13571 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 13572
78f22b6a
JB		 13573 if (wdev->owner_nlportid == notify->portid)
13574 schedule_destroy_work = true;
13575 }
13576
37c73b5f
BG		 13577 spin_lock_bh(&rdev->beacon_registrations_lock);
13578 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13579 list) {
13580 if (reg->nlportid == notify->portid) {
13581 list_del(&reg->list);
13582 kfree(reg);
13583 break;
13584 }
13585 }
13586 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 13587
13588 if (schedule_destroy_work) {
13589 struct cfg80211_iface_destroy *destroy;
13590
13591 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13592 if (destroy) {
13593 destroy->nlportid = notify->portid;
13594 spin_lock(&rdev->destroy_list_lock);
13595 list_add(&destroy->list, &rdev->destroy_list);
13596 spin_unlock(&rdev->destroy_list_lock);
13597 schedule_work(&rdev->destroy_work);
13598 }
93a1e86c
JR		 13599 } else if (schedule_scan_stop) {
13600 sched_scan_req->owner_nlportid = 0;
13601
13602 if (rdev->ops->sched_scan_stop &&
13603 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13604 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 13605 }
5e760230 13606 }
026331c4
JM		 13607
13608 rcu_read_unlock();
13609
05050753
I		 13610 /*
13611 * It is possible that the user space process that is controlling the
13612 * indoor setting disappeared, so notify the regulatory core.
13613 */
13614 regulatory_netlink_notify(notify->portid);
6784c7db 13615 return NOTIFY_OK;
026331c4
JM		 13616}
13617
13618static struct notifier_block nl80211_netlink_notifier = {
13619 .notifier_call = nl80211_netlink_notify,
13620};
13621
355199e0
JM		 13622void cfg80211_ft_event(struct net_device *netdev,
13623 struct cfg80211_ft_event_params *ft_event)
13624{
13625 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 13626 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 13627 struct sk_buff *msg;
13628 void *hdr;
355199e0
JM		 13629
13630 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13631
13632 if (!ft_event->target_ap)
13633 return;
13634
13635 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13636 if (!msg)
13637 return;
13638
13639 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 13640 if (!hdr)
13641 goto out;
355199e0 13642
ae917c9f
JB		 13643 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13644 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13645 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13646 goto out;
355199e0 13647
ae917c9f
JB		 13648 if (ft_event->ies &&
13649 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13650 goto out;
13651 if (ft_event->ric_ies &&
13652 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13653 ft_event->ric_ies))
13654 goto out;
355199e0 13655
9c90a9f6 13656 genlmsg_end(msg, hdr);
355199e0 13657
68eb5503 13658 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13659 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 13660 return;
13661 out:
13662 nlmsg_free(msg);
355199e0
JM		 13663}
13664EXPORT_SYMBOL(cfg80211_ft_event);
13665
5de17984
AS		 13666void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13667{
13668 struct cfg80211_registered_device *rdev;
13669 struct sk_buff *msg;
13670 void *hdr;
13671 u32 nlportid;
13672
f26cbf40 13673 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 13674 if (!rdev->crit_proto_nlportid)
13675 return;
13676
13677 nlportid = rdev->crit_proto_nlportid;
13678 rdev->crit_proto_nlportid = 0;
13679
13680 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13681 if (!msg)
13682 return;
13683
13684 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13685 if (!hdr)
13686 goto nla_put_failure;
13687
13688 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2dad624e
ND		 13689 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13690 NL80211_ATTR_PAD))
5de17984
AS		 13691 goto nla_put_failure;
13692
13693 genlmsg_end(msg, hdr);
13694
13695 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13696 return;
13697
13698 nla_put_failure:
13699 if (hdr)
13700 genlmsg_cancel(msg, hdr);
13701 nlmsg_free(msg);
5de17984
AS		 13702}
13703EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13704
348baf0e
JB		 13705void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13706{
13707 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13708 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 13709 struct sk_buff *msg;
13710 void *hdr;
13711
13712 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13713 if (!msg)
13714 return;
13715
13716 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13717 if (!hdr)
13718 goto out;
13719
13720 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13721 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
2dad624e
ND		 13722 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13723 NL80211_ATTR_PAD))
348baf0e
JB		 13724 goto out;
13725
13726 genlmsg_end(msg, hdr);
13727
13728 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13729 NL80211_MCGRP_MLME, GFP_KERNEL);
13730 return;
13731 out:
13732 nlmsg_free(msg);
13733}
13734
55682965
JB		 13735/* initialisation/exit functions */
13736
13737int nl80211_init(void)
13738{
0d63cbb5 13739 int err;
55682965 13740
2a94fe48
JB		 13741 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13742 nl80211_mcgrps);
55682965
JB		 13743 if (err)
13744 return err;
13745
026331c4
JM		 13746 err = netlink_register_notifier(&nl80211_netlink_notifier);
13747 if (err)
13748 goto err_out;
13749
55682965
JB		 13750 return 0;
13751 err_out:
13752 genl_unregister_family(&nl80211_fam);
13753 return err;
13754}
13755
13756void nl80211_exit(void)
13757{
026331c4 13758 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 13759 genl_unregister_family(&nl80211_fam);
13760}
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