linux-user/fd-trans.c

   1 /*
   2  *  This program is free software; you can redistribute it and/or modify
   3  *  it under the terms of the GNU General Public License as published by
   4  *  the Free Software Foundation; either version 2 of the License, or
   5  *  (at your option) any later version.
   6  *
   7  *  This program is distributed in the hope that it will be useful,
   8  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  *  GNU General Public License for more details.
  11  *
  12  *  You should have received a copy of the GNU General Public License
  13  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  14  */
  15
  16 #include "qemu/osdep.h"
  17
  18 #include <sys/signalfd.h>
  19 #include <linux/unistd.h>
  20 #include <linux/audit.h>
  21 #ifdef CONFIG_INOTIFY
  22 #include <sys/inotify.h>
  23 #endif
  24 #include <linux/netlink.h>
  25 #ifdef CONFIG_RTNETLINK
  26 #include <linux/rtnetlink.h>
  27 #include <linux/if_bridge.h>
  28 #endif
  29 #include "qemu.h"
  30 #include "user-internals.h"
  31 #include "fd-trans.h"
  32 #include "signal-common.h"
  33
  34 enum {
  35     QEMU_IFLA_BR_UNSPEC,
  36     QEMU_IFLA_BR_FORWARD_DELAY,
  37     QEMU_IFLA_BR_HELLO_TIME,
  38     QEMU_IFLA_BR_MAX_AGE,
  39     QEMU_IFLA_BR_AGEING_TIME,
  40     QEMU_IFLA_BR_STP_STATE,
  41     QEMU_IFLA_BR_PRIORITY,
  42     QEMU_IFLA_BR_VLAN_FILTERING,
  43     QEMU_IFLA_BR_VLAN_PROTOCOL,
  44     QEMU_IFLA_BR_GROUP_FWD_MASK,
  45     QEMU_IFLA_BR_ROOT_ID,
  46     QEMU_IFLA_BR_BRIDGE_ID,
  47     QEMU_IFLA_BR_ROOT_PORT,
  48     QEMU_IFLA_BR_ROOT_PATH_COST,
  49     QEMU_IFLA_BR_TOPOLOGY_CHANGE,
  50     QEMU_IFLA_BR_TOPOLOGY_CHANGE_DETECTED,
  51     QEMU_IFLA_BR_HELLO_TIMER,
  52     QEMU_IFLA_BR_TCN_TIMER,
  53     QEMU_IFLA_BR_TOPOLOGY_CHANGE_TIMER,
  54     QEMU_IFLA_BR_GC_TIMER,
  55     QEMU_IFLA_BR_GROUP_ADDR,
  56     QEMU_IFLA_BR_FDB_FLUSH,
  57     QEMU_IFLA_BR_MCAST_ROUTER,
  58     QEMU_IFLA_BR_MCAST_SNOOPING,
  59     QEMU_IFLA_BR_MCAST_QUERY_USE_IFADDR,
  60     QEMU_IFLA_BR_MCAST_QUERIER,
  61     QEMU_IFLA_BR_MCAST_HASH_ELASTICITY,
  62     QEMU_IFLA_BR_MCAST_HASH_MAX,
  63     QEMU_IFLA_BR_MCAST_LAST_MEMBER_CNT,
  64     QEMU_IFLA_BR_MCAST_STARTUP_QUERY_CNT,
  65     QEMU_IFLA_BR_MCAST_LAST_MEMBER_INTVL,
  66     QEMU_IFLA_BR_MCAST_MEMBERSHIP_INTVL,
  67     QEMU_IFLA_BR_MCAST_QUERIER_INTVL,
  68     QEMU_IFLA_BR_MCAST_QUERY_INTVL,
  69     QEMU_IFLA_BR_MCAST_QUERY_RESPONSE_INTVL,
  70     QEMU_IFLA_BR_MCAST_STARTUP_QUERY_INTVL,
  71     QEMU_IFLA_BR_NF_CALL_IPTABLES,
  72     QEMU_IFLA_BR_NF_CALL_IP6TABLES,
  73     QEMU_IFLA_BR_NF_CALL_ARPTABLES,
  74     QEMU_IFLA_BR_VLAN_DEFAULT_PVID,
  75     QEMU_IFLA_BR_PAD,
  76     QEMU_IFLA_BR_VLAN_STATS_ENABLED,
  77     QEMU_IFLA_BR_MCAST_STATS_ENABLED,
  78     QEMU_IFLA_BR_MCAST_IGMP_VERSION,
  79     QEMU_IFLA_BR_MCAST_MLD_VERSION,
  80     QEMU_IFLA_BR_VLAN_STATS_PER_PORT,
  81     QEMU_IFLA_BR_MULTI_BOOLOPT,
  82     QEMU___IFLA_BR_MAX,
  83 };
  84
  85 enum {
  86     QEMU_IFLA_UNSPEC,
  87     QEMU_IFLA_ADDRESS,
  88     QEMU_IFLA_BROADCAST,
  89     QEMU_IFLA_IFNAME,
  90     QEMU_IFLA_MTU,
  91     QEMU_IFLA_LINK,
  92     QEMU_IFLA_QDISC,
  93     QEMU_IFLA_STATS,
  94     QEMU_IFLA_COST,
  95     QEMU_IFLA_PRIORITY,
  96     QEMU_IFLA_MASTER,
  97     QEMU_IFLA_WIRELESS,
  98     QEMU_IFLA_PROTINFO,
  99     QEMU_IFLA_TXQLEN,
 100     QEMU_IFLA_MAP,
 101     QEMU_IFLA_WEIGHT,
 102     QEMU_IFLA_OPERSTATE,
 103     QEMU_IFLA_LINKMODE,
 104     QEMU_IFLA_LINKINFO,
 105     QEMU_IFLA_NET_NS_PID,
 106     QEMU_IFLA_IFALIAS,
 107     QEMU_IFLA_NUM_VF,
 108     QEMU_IFLA_VFINFO_LIST,
 109     QEMU_IFLA_STATS64,
 110     QEMU_IFLA_VF_PORTS,
 111     QEMU_IFLA_PORT_SELF,
 112     QEMU_IFLA_AF_SPEC,
 113     QEMU_IFLA_GROUP,
 114     QEMU_IFLA_NET_NS_FD,
 115     QEMU_IFLA_EXT_MASK,
 116     QEMU_IFLA_PROMISCUITY,
 117     QEMU_IFLA_NUM_TX_QUEUES,
 118     QEMU_IFLA_NUM_RX_QUEUES,
 119     QEMU_IFLA_CARRIER,
 120     QEMU_IFLA_PHYS_PORT_ID,
 121     QEMU_IFLA_CARRIER_CHANGES,
 122     QEMU_IFLA_PHYS_SWITCH_ID,
 123     QEMU_IFLA_LINK_NETNSID,
 124     QEMU_IFLA_PHYS_PORT_NAME,
 125     QEMU_IFLA_PROTO_DOWN,
 126     QEMU_IFLA_GSO_MAX_SEGS,
 127     QEMU_IFLA_GSO_MAX_SIZE,
 128     QEMU_IFLA_PAD,
 129     QEMU_IFLA_XDP,
 130     QEMU_IFLA_EVENT,
 131     QEMU_IFLA_NEW_NETNSID,
 132     QEMU_IFLA_IF_NETNSID,
 133     QEMU_IFLA_CARRIER_UP_COUNT,
 134     QEMU_IFLA_CARRIER_DOWN_COUNT,
 135     QEMU_IFLA_NEW_IFINDEX,
 136     QEMU_IFLA_MIN_MTU,
 137     QEMU_IFLA_MAX_MTU,
 138     QEMU_IFLA_PROP_LIST,
 139     QEMU_IFLA_ALT_IFNAME,
 140     QEMU_IFLA_PERM_ADDRESS,
 141     QEMU_IFLA_PROTO_DOWN_REASON,
 142     QEMU_IFLA_PARENT_DEV_NAME,
 143     QEMU_IFLA_PARENT_DEV_BUS_NAME,
 144     QEMU___IFLA_MAX
 145 };
 146
 147 enum {
 148     QEMU_IFLA_BRPORT_UNSPEC,
 149     QEMU_IFLA_BRPORT_STATE,
 150     QEMU_IFLA_BRPORT_PRIORITY,
 151     QEMU_IFLA_BRPORT_COST,
 152     QEMU_IFLA_BRPORT_MODE,
 153     QEMU_IFLA_BRPORT_GUARD,
 154     QEMU_IFLA_BRPORT_PROTECT,
 155     QEMU_IFLA_BRPORT_FAST_LEAVE,
 156     QEMU_IFLA_BRPORT_LEARNING,
 157     QEMU_IFLA_BRPORT_UNICAST_FLOOD,
 158     QEMU_IFLA_BRPORT_PROXYARP,
 159     QEMU_IFLA_BRPORT_LEARNING_SYNC,
 160     QEMU_IFLA_BRPORT_PROXYARP_WIFI,
 161     QEMU_IFLA_BRPORT_ROOT_ID,
 162     QEMU_IFLA_BRPORT_BRIDGE_ID,
 163     QEMU_IFLA_BRPORT_DESIGNATED_PORT,
 164     QEMU_IFLA_BRPORT_DESIGNATED_COST,
 165     QEMU_IFLA_BRPORT_ID,
 166     QEMU_IFLA_BRPORT_NO,
 167     QEMU_IFLA_BRPORT_TOPOLOGY_CHANGE_ACK,
 168     QEMU_IFLA_BRPORT_CONFIG_PENDING,
 169     QEMU_IFLA_BRPORT_MESSAGE_AGE_TIMER,
 170     QEMU_IFLA_BRPORT_FORWARD_DELAY_TIMER,
 171     QEMU_IFLA_BRPORT_HOLD_TIMER,
 172     QEMU_IFLA_BRPORT_FLUSH,
 173     QEMU_IFLA_BRPORT_MULTICAST_ROUTER,
 174     QEMU_IFLA_BRPORT_PAD,
 175     QEMU_IFLA_BRPORT_MCAST_FLOOD,
 176     QEMU_IFLA_BRPORT_MCAST_TO_UCAST,
 177     QEMU_IFLA_BRPORT_VLAN_TUNNEL,
 178     QEMU_IFLA_BRPORT_BCAST_FLOOD,
 179     QEMU_IFLA_BRPORT_GROUP_FWD_MASK,
 180     QEMU_IFLA_BRPORT_NEIGH_SUPPRESS,
 181     QEMU_IFLA_BRPORT_ISOLATED,
 182     QEMU_IFLA_BRPORT_BACKUP_PORT,
 183     QEMU_IFLA_BRPORT_MRP_RING_OPEN,
 184     QEMU_IFLA_BRPORT_MRP_IN_OPEN,
 185     QEMU_IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT,
 186     QEMU_IFLA_BRPORT_MCAST_EHT_HOSTS_CNT,
 187     QEMU___IFLA_BRPORT_MAX
 188 };
 189
 190 enum {
 191     QEMU_IFLA_TUN_UNSPEC,
 192     QEMU_IFLA_TUN_OWNER,
 193     QEMU_IFLA_TUN_GROUP,
 194     QEMU_IFLA_TUN_TYPE,
 195     QEMU_IFLA_TUN_PI,
 196     QEMU_IFLA_TUN_VNET_HDR,
 197     QEMU_IFLA_TUN_PERSIST,
 198     QEMU_IFLA_TUN_MULTI_QUEUE,
 199     QEMU_IFLA_TUN_NUM_QUEUES,
 200     QEMU_IFLA_TUN_NUM_DISABLED_QUEUES,
 201     QEMU___IFLA_TUN_MAX,
 202 };
 203
 204 enum {
 205     QEMU_IFLA_INFO_UNSPEC,
 206     QEMU_IFLA_INFO_KIND,
 207     QEMU_IFLA_INFO_DATA,
 208     QEMU_IFLA_INFO_XSTATS,
 209     QEMU_IFLA_INFO_SLAVE_KIND,
 210     QEMU_IFLA_INFO_SLAVE_DATA,
 211     QEMU___IFLA_INFO_MAX,
 212 };
 213
 214 enum {
 215     QEMU_IFLA_INET_UNSPEC,
 216     QEMU_IFLA_INET_CONF,
 217     QEMU___IFLA_INET_MAX,
 218 };
 219
 220 enum {
 221     QEMU_IFLA_INET6_UNSPEC,
 222     QEMU_IFLA_INET6_FLAGS,
 223     QEMU_IFLA_INET6_CONF,
 224     QEMU_IFLA_INET6_STATS,
 225     QEMU_IFLA_INET6_MCAST,
 226     QEMU_IFLA_INET6_CACHEINFO,
 227     QEMU_IFLA_INET6_ICMP6STATS,
 228     QEMU_IFLA_INET6_TOKEN,
 229     QEMU_IFLA_INET6_ADDR_GEN_MODE,
 230     QEMU___IFLA_INET6_MAX
 231 };
 232
 233 enum {
 234     QEMU_IFLA_XDP_UNSPEC,
 235     QEMU_IFLA_XDP_FD,
 236     QEMU_IFLA_XDP_ATTACHED,
 237     QEMU_IFLA_XDP_FLAGS,
 238     QEMU_IFLA_XDP_PROG_ID,
 239     QEMU___IFLA_XDP_MAX,
 240 };
 241
 242 enum {
 243     QEMU_RTA_UNSPEC,
 244     QEMU_RTA_DST,
 245     QEMU_RTA_SRC,
 246     QEMU_RTA_IIF,
 247     QEMU_RTA_OIF,
 248     QEMU_RTA_GATEWAY,
 249     QEMU_RTA_PRIORITY,
 250     QEMU_RTA_PREFSRC,
 251     QEMU_RTA_METRICS,
 252     QEMU_RTA_MULTIPATH,
 253     QEMU_RTA_PROTOINFO, /* no longer used */
 254     QEMU_RTA_FLOW,
 255     QEMU_RTA_CACHEINFO,
 256     QEMU_RTA_SESSION, /* no longer used */
 257     QEMU_RTA_MP_ALGO, /* no longer used */
 258     QEMU_RTA_TABLE,
 259     QEMU_RTA_MARK,
 260     QEMU_RTA_MFC_STATS,
 261     QEMU_RTA_VIA,
 262     QEMU_RTA_NEWDST,
 263     QEMU_RTA_PREF,
 264     QEMU_RTA_ENCAP_TYPE,
 265     QEMU_RTA_ENCAP,
 266     QEMU_RTA_EXPIRES,
 267     QEMU_RTA_PAD,
 268     QEMU_RTA_UID,
 269     QEMU_RTA_TTL_PROPAGATE,
 270     QEMU_RTA_IP_PROTO,
 271     QEMU_RTA_SPORT,
 272     QEMU_RTA_DPORT,
 273     QEMU___RTA_MAX
 274 };
 275
 276 enum {
 277     QEMU_IFLA_VF_STATS_RX_PACKETS,
 278     QEMU_IFLA_VF_STATS_TX_PACKETS,
 279     QEMU_IFLA_VF_STATS_RX_BYTES,
 280     QEMU_IFLA_VF_STATS_TX_BYTES,
 281     QEMU_IFLA_VF_STATS_BROADCAST,
 282     QEMU_IFLA_VF_STATS_MULTICAST,
 283     QEMU_IFLA_VF_STATS_PAD,
 284     QEMU_IFLA_VF_STATS_RX_DROPPED,
 285     QEMU_IFLA_VF_STATS_TX_DROPPED,
 286     QEMU__IFLA_VF_STATS_MAX,
 287 };
 288
 289 enum {
 290     QEMU_IFLA_VF_UNSPEC,
 291     QEMU_IFLA_VF_MAC,
 292     QEMU_IFLA_VF_VLAN,
 293     QEMU_IFLA_VF_TX_RATE,
 294     QEMU_IFLA_VF_SPOOFCHK,
 295     QEMU_IFLA_VF_LINK_STATE,
 296     QEMU_IFLA_VF_RATE,
 297     QEMU_IFLA_VF_RSS_QUERY_EN,
 298     QEMU_IFLA_VF_STATS,
 299     QEMU_IFLA_VF_TRUST,
 300     QEMU_IFLA_VF_IB_NODE_GUID,
 301     QEMU_IFLA_VF_IB_PORT_GUID,
 302     QEMU_IFLA_VF_VLAN_LIST,
 303     QEMU_IFLA_VF_BROADCAST,
 304     QEMU__IFLA_VF_MAX,
 305 };
 306
 307 TargetFdTrans **target_fd_trans;
 308 QemuMutex target_fd_trans_lock;
 309 unsigned int target_fd_max;
 310
 311 static void tswap_nlmsghdr(struct nlmsghdr *nlh)
 312 {
 313     nlh->nlmsg_len = tswap32(nlh->nlmsg_len);
 314     nlh->nlmsg_type = tswap16(nlh->nlmsg_type);
 315     nlh->nlmsg_flags = tswap16(nlh->nlmsg_flags);
 316     nlh->nlmsg_seq = tswap32(nlh->nlmsg_seq);
 317     nlh->nlmsg_pid = tswap32(nlh->nlmsg_pid);
 318 }
 319
 320 static abi_long host_to_target_for_each_nlmsg(struct nlmsghdr *nlh,
 321                                               size_t len,
 322                                               abi_long (*host_to_target_nlmsg)
 323                                                        (struct nlmsghdr *))
 324 {
 325     uint32_t nlmsg_len;
 326     uint32_t aligned_nlmsg_len;
 327     abi_long ret;
 328
 329     while (len > sizeof(struct nlmsghdr)) {
 330
 331         nlmsg_len = nlh->nlmsg_len;
 332         if (nlmsg_len < sizeof(struct nlmsghdr) ||
 333             nlmsg_len > len) {
 334             break;
 335         }
 336
 337         switch (nlh->nlmsg_type) {
 338         case NLMSG_DONE:
 339             tswap_nlmsghdr(nlh);
 340             return 0;
 341         case NLMSG_NOOP:
 342             break;
 343         case NLMSG_ERROR:
 344         {
 345             struct nlmsgerr *e = NLMSG_DATA(nlh);
 346             e->error = tswap32(e->error);
 347             tswap_nlmsghdr(&e->msg);
 348             tswap_nlmsghdr(nlh);
 349             return 0;
 350         }
 351         default:
 352             ret = host_to_target_nlmsg(nlh);
 353             if (ret < 0) {
 354                 tswap_nlmsghdr(nlh);
 355                 return ret;
 356             }
 357             break;
 358         }
 359         tswap_nlmsghdr(nlh);
 360
 361         aligned_nlmsg_len = NLMSG_ALIGN(nlmsg_len);
 362         if (aligned_nlmsg_len >= len) {
 363             break;
 364         }
 365         len -= aligned_nlmsg_len;
 366         nlh = (struct nlmsghdr *)(((char*)nlh) + aligned_nlmsg_len);
 367     }
 368     return 0;
 369 }
 370
 371 static abi_long target_to_host_for_each_nlmsg(struct nlmsghdr *nlh,
 372                                               size_t len,
 373                                               abi_long (*target_to_host_nlmsg)
 374                                                        (struct nlmsghdr *))
 375 {
 376     uint32_t aligned_nlmsg_len;
 377     int ret;
 378
 379     while (len > sizeof(struct nlmsghdr)) {
 380         if (tswap32(nlh->nlmsg_len) < sizeof(struct nlmsghdr) ||
 381             tswap32(nlh->nlmsg_len) > len) {
 382             break;
 383         }
 384         tswap_nlmsghdr(nlh);
 385         switch (nlh->nlmsg_type) {
 386         case NLMSG_DONE:
 387             return 0;
 388         case NLMSG_NOOP:
 389             break;
 390         case NLMSG_ERROR:
 391         {
 392             struct nlmsgerr *e = NLMSG_DATA(nlh);
 393             e->error = tswap32(e->error);
 394             tswap_nlmsghdr(&e->msg);
 395             return 0;
 396         }
 397         default:
 398             ret = target_to_host_nlmsg(nlh);
 399             if (ret < 0) {
 400                 return ret;
 401             }
 402         }
 403
 404         aligned_nlmsg_len = NLMSG_ALIGN(nlh->nlmsg_len);
 405         if (aligned_nlmsg_len >= len) {
 406             break;
 407         }
 408         len -= aligned_nlmsg_len;
 409         nlh = (struct nlmsghdr *)(((char *)nlh) + aligned_nlmsg_len);
 410     }
 411     return 0;
 412 }
 413
 414 #ifdef CONFIG_RTNETLINK
 415 static abi_long host_to_target_for_each_nlattr(struct nlattr *nlattr,
 416                                                size_t len, void *context,
 417                                                abi_long (*host_to_target_nlattr)
 418                                                         (struct nlattr *,
 419                                                          void *context))
 420 {
 421     unsigned short nla_len;
 422     unsigned short aligned_nla_len;
 423     abi_long ret;
 424
 425     while (len > sizeof(struct nlattr)) {
 426         nla_len = nlattr->nla_len;
 427         if (nla_len < sizeof(struct nlattr) ||
 428             nla_len > len) {
 429             break;
 430         }
 431         ret = host_to_target_nlattr(nlattr, context);
 432         nlattr->nla_len = tswap16(nlattr->nla_len);
 433         nlattr->nla_type = tswap16(nlattr->nla_type);
 434         if (ret < 0) {
 435             return ret;
 436         }
 437
 438         aligned_nla_len = NLA_ALIGN(nla_len);
 439         if (aligned_nla_len >= len) {
 440             break;
 441         }
 442         len -= aligned_nla_len;
 443         nlattr = (struct nlattr *)(((char *)nlattr) + aligned_nla_len);
 444     }
 445     return 0;
 446 }
 447
 448 static abi_long host_to_target_for_each_rtattr(struct rtattr *rtattr,
 449                                                size_t len,
 450                                                abi_long (*host_to_target_rtattr)
 451                                                         (struct rtattr *))
 452 {
 453     unsigned short rta_len;
 454     unsigned short aligned_rta_len;
 455     abi_long ret;
 456
 457     while (len > sizeof(struct rtattr)) {
 458         rta_len = rtattr->rta_len;
 459         if (rta_len < sizeof(struct rtattr) ||
 460             rta_len > len) {
 461             break;
 462         }
 463         ret = host_to_target_rtattr(rtattr);
 464         rtattr->rta_len = tswap16(rtattr->rta_len);
 465         rtattr->rta_type = tswap16(rtattr->rta_type);
 466         if (ret < 0) {
 467             return ret;
 468         }
 469
 470         aligned_rta_len = RTA_ALIGN(rta_len);
 471         if (aligned_rta_len >= len) {
 472             break;
 473         }
 474         len -= aligned_rta_len;
 475         rtattr = (struct rtattr *)(((char *)rtattr) + aligned_rta_len);
 476     }
 477     return 0;
 478 }
 479
 480 #define NLA_DATA(nla) ((void *)((char *)(nla)) + NLA_HDRLEN)
 481
 482 static abi_long host_to_target_data_bridge_nlattr(struct nlattr *nlattr,
 483                                                   void *context)
 484 {
 485     uint16_t *u16;
 486     uint32_t *u32;
 487     uint64_t *u64;
 488
 489     switch (nlattr->nla_type) {
 490     /* no data */
 491     case QEMU_IFLA_BR_FDB_FLUSH:
 492         break;
 493     /* binary */
 494     case QEMU_IFLA_BR_GROUP_ADDR:
 495         break;
 496     /* uint8_t */
 497     case QEMU_IFLA_BR_VLAN_FILTERING:
 498     case QEMU_IFLA_BR_TOPOLOGY_CHANGE:
 499     case QEMU_IFLA_BR_TOPOLOGY_CHANGE_DETECTED:
 500     case QEMU_IFLA_BR_MCAST_ROUTER:
 501     case QEMU_IFLA_BR_MCAST_SNOOPING:
 502     case QEMU_IFLA_BR_MCAST_QUERY_USE_IFADDR:
 503     case QEMU_IFLA_BR_MCAST_QUERIER:
 504     case QEMU_IFLA_BR_NF_CALL_IPTABLES:
 505     case QEMU_IFLA_BR_NF_CALL_IP6TABLES:
 506     case QEMU_IFLA_BR_NF_CALL_ARPTABLES:
 507     case QEMU_IFLA_BR_VLAN_STATS_ENABLED:
 508     case QEMU_IFLA_BR_MCAST_STATS_ENABLED:
 509     case QEMU_IFLA_BR_MCAST_IGMP_VERSION:
 510     case QEMU_IFLA_BR_MCAST_MLD_VERSION:
 511     case QEMU_IFLA_BR_VLAN_STATS_PER_PORT:
 512         break;
 513     /* uint16_t */
 514     case QEMU_IFLA_BR_PRIORITY:
 515     case QEMU_IFLA_BR_VLAN_PROTOCOL:
 516     case QEMU_IFLA_BR_GROUP_FWD_MASK:
 517     case QEMU_IFLA_BR_ROOT_PORT:
 518     case QEMU_IFLA_BR_VLAN_DEFAULT_PVID:
 519         u16 = NLA_DATA(nlattr);
 520         *u16 = tswap16(*u16);
 521         break;
 522     /* uint32_t */
 523     case QEMU_IFLA_BR_FORWARD_DELAY:
 524     case QEMU_IFLA_BR_HELLO_TIME:
 525     case QEMU_IFLA_BR_MAX_AGE:
 526     case QEMU_IFLA_BR_AGEING_TIME:
 527     case QEMU_IFLA_BR_STP_STATE:
 528     case QEMU_IFLA_BR_ROOT_PATH_COST:
 529     case QEMU_IFLA_BR_MCAST_HASH_ELASTICITY:
 530     case QEMU_IFLA_BR_MCAST_HASH_MAX:
 531     case QEMU_IFLA_BR_MCAST_LAST_MEMBER_CNT:
 532     case QEMU_IFLA_BR_MCAST_STARTUP_QUERY_CNT:
 533         u32 = NLA_DATA(nlattr);
 534         *u32 = tswap32(*u32);
 535         break;
 536     /* uint64_t */
 537     case QEMU_IFLA_BR_HELLO_TIMER:
 538     case QEMU_IFLA_BR_TCN_TIMER:
 539     case QEMU_IFLA_BR_GC_TIMER:
 540     case QEMU_IFLA_BR_TOPOLOGY_CHANGE_TIMER:
 541     case QEMU_IFLA_BR_MCAST_LAST_MEMBER_INTVL:
 542     case QEMU_IFLA_BR_MCAST_MEMBERSHIP_INTVL:
 543     case QEMU_IFLA_BR_MCAST_QUERIER_INTVL:
 544     case QEMU_IFLA_BR_MCAST_QUERY_INTVL:
 545     case QEMU_IFLA_BR_MCAST_QUERY_RESPONSE_INTVL:
 546     case QEMU_IFLA_BR_MCAST_STARTUP_QUERY_INTVL:
 547         u64 = NLA_DATA(nlattr);
 548         *u64 = tswap64(*u64);
 549         break;
 550     /* ifla_bridge_id: uin8_t[] */
 551     case QEMU_IFLA_BR_ROOT_ID:
 552     case QEMU_IFLA_BR_BRIDGE_ID:
 553         break;
 554     /* br_boolopt_multi { uint32_t, uint32_t } */
 555     case QEMU_IFLA_BR_MULTI_BOOLOPT:
 556         u32 = NLA_DATA(nlattr);
 557         u32[0] = tswap32(u32[0]); /* optval */
 558         u32[1] = tswap32(u32[1]); /* optmask */
 559         break;
 560     default:
 561         qemu_log_mask(LOG_UNIMP, "Unknown QEMU_IFLA_BR type %d\n",
 562                       nlattr->nla_type);
 563         break;
 564     }
 565     return 0;
 566 }
 567
 568 static abi_long host_to_target_slave_data_bridge_nlattr(struct nlattr *nlattr,
 569                                                         void *context)
 570 {
 571     uint16_t *u16;
 572     uint32_t *u32;
 573     uint64_t *u64;
 574
 575     switch (nlattr->nla_type) {
 576     /* uint8_t */
 577     case QEMU_IFLA_BRPORT_STATE:
 578     case QEMU_IFLA_BRPORT_MODE:
 579     case QEMU_IFLA_BRPORT_GUARD:
 580     case QEMU_IFLA_BRPORT_PROTECT:
 581     case QEMU_IFLA_BRPORT_FAST_LEAVE:
 582     case QEMU_IFLA_BRPORT_LEARNING:
 583     case QEMU_IFLA_BRPORT_UNICAST_FLOOD:
 584     case QEMU_IFLA_BRPORT_PROXYARP:
 585     case QEMU_IFLA_BRPORT_LEARNING_SYNC:
 586     case QEMU_IFLA_BRPORT_PROXYARP_WIFI:
 587     case QEMU_IFLA_BRPORT_TOPOLOGY_CHANGE_ACK:
 588     case QEMU_IFLA_BRPORT_CONFIG_PENDING:
 589     case QEMU_IFLA_BRPORT_MULTICAST_ROUTER:
 590     case QEMU_IFLA_BRPORT_MCAST_FLOOD:
 591     case QEMU_IFLA_BRPORT_MCAST_TO_UCAST:
 592     case QEMU_IFLA_BRPORT_VLAN_TUNNEL:
 593     case QEMU_IFLA_BRPORT_BCAST_FLOOD:
 594     case QEMU_IFLA_BRPORT_NEIGH_SUPPRESS:
 595     case QEMU_IFLA_BRPORT_ISOLATED:
 596     case QEMU_IFLA_BRPORT_MRP_RING_OPEN:
 597     case QEMU_IFLA_BRPORT_MRP_IN_OPEN:
 598         break;
 599     /* uint16_t */
 600     case QEMU_IFLA_BRPORT_PRIORITY:
 601     case QEMU_IFLA_BRPORT_DESIGNATED_PORT:
 602     case QEMU_IFLA_BRPORT_DESIGNATED_COST:
 603     case QEMU_IFLA_BRPORT_ID:
 604     case QEMU_IFLA_BRPORT_NO:
 605     case QEMU_IFLA_BRPORT_GROUP_FWD_MASK:
 606         u16 = NLA_DATA(nlattr);
 607         *u16 = tswap16(*u16);
 608         break;
 609     /* uin32_t */
 610     case QEMU_IFLA_BRPORT_COST:
 611     case QEMU_IFLA_BRPORT_BACKUP_PORT:
 612     case QEMU_IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT:
 613     case QEMU_IFLA_BRPORT_MCAST_EHT_HOSTS_CNT:
 614         u32 = NLA_DATA(nlattr);
 615         *u32 = tswap32(*u32);
 616         break;
 617     /* uint64_t */
 618     case QEMU_IFLA_BRPORT_MESSAGE_AGE_TIMER:
 619     case QEMU_IFLA_BRPORT_FORWARD_DELAY_TIMER:
 620     case QEMU_IFLA_BRPORT_HOLD_TIMER:
 621         u64 = NLA_DATA(nlattr);
 622         *u64 = tswap64(*u64);
 623         break;
 624     /* ifla_bridge_id: uint8_t[] */
 625     case QEMU_IFLA_BRPORT_ROOT_ID:
 626     case QEMU_IFLA_BRPORT_BRIDGE_ID:
 627         break;
 628     default:
 629         qemu_log_mask(LOG_UNIMP, "Unknown QEMU_IFLA_BRPORT type %d\n",
 630                       nlattr->nla_type);
 631         break;
 632     }
 633     return 0;
 634 }
 635
 636 static abi_long host_to_target_data_tun_nlattr(struct nlattr *nlattr,
 637                                                   void *context)
 638 {
 639     uint32_t *u32;
 640
 641     switch (nlattr->nla_type) {
 642     /* uint8_t */
 643     case QEMU_IFLA_TUN_TYPE:
 644     case QEMU_IFLA_TUN_PI:
 645     case QEMU_IFLA_TUN_VNET_HDR:
 646     case QEMU_IFLA_TUN_PERSIST:
 647     case QEMU_IFLA_TUN_MULTI_QUEUE:
 648         break;
 649     /* uint32_t */
 650     case QEMU_IFLA_TUN_NUM_QUEUES:
 651     case QEMU_IFLA_TUN_NUM_DISABLED_QUEUES:
 652     case QEMU_IFLA_TUN_OWNER:
 653     case QEMU_IFLA_TUN_GROUP:
 654         u32 = NLA_DATA(nlattr);
 655         *u32 = tswap32(*u32);
 656         break;
 657     default:
 658         qemu_log_mask(LOG_UNIMP, "Unknown QEMU_IFLA_TUN type %d\n",
 659                       nlattr->nla_type);
 660         break;
 661     }
 662     return 0;
 663 }
 664
 665 struct linkinfo_context {
 666     int len;
 667     char *name;
 668     int slave_len;
 669     char *slave_name;
 670 };
 671
 672 static abi_long host_to_target_data_linkinfo_nlattr(struct nlattr *nlattr,
 673                                                     void *context)
 674 {
 675     struct linkinfo_context *li_context = context;
 676
 677     switch (nlattr->nla_type) {
 678     /* string */
 679     case QEMU_IFLA_INFO_KIND:
 680         li_context->name = NLA_DATA(nlattr);
 681         li_context->len = nlattr->nla_len - NLA_HDRLEN;
 682         break;
 683     case QEMU_IFLA_INFO_SLAVE_KIND:
 684         li_context->slave_name = NLA_DATA(nlattr);
 685         li_context->slave_len = nlattr->nla_len - NLA_HDRLEN;
 686         break;
 687     /* stats */
 688     case QEMU_IFLA_INFO_XSTATS:
 689         /* FIXME: only used by CAN */
 690         break;
 691     /* nested */
 692     case QEMU_IFLA_INFO_DATA:
 693         if (strncmp(li_context->name, "bridge",
 694                     li_context->len) == 0) {
 695             return host_to_target_for_each_nlattr(NLA_DATA(nlattr),
 696                                                   nlattr->nla_len,
 697                                                   NULL,
 698                                              host_to_target_data_bridge_nlattr);
 699         } else if (strncmp(li_context->name, "tun",
 700                     li_context->len) == 0) {
 701             return host_to_target_for_each_nlattr(NLA_DATA(nlattr),
 702                                                   nlattr->nla_len,
 703                                                   NULL,
 704                                                 host_to_target_data_tun_nlattr);
 705         } else {
 706             qemu_log_mask(LOG_UNIMP, "Unknown QEMU_IFLA_INFO_KIND %s\n",
 707                           li_context->name);
 708         }
 709         break;
 710     case QEMU_IFLA_INFO_SLAVE_DATA:
 711         if (strncmp(li_context->slave_name, "bridge",
 712                     li_context->slave_len) == 0) {
 713             return host_to_target_for_each_nlattr(NLA_DATA(nlattr),
 714                                                   nlattr->nla_len,
 715                                                   NULL,
 716                                        host_to_target_slave_data_bridge_nlattr);
 717         } else {
 718             qemu_log_mask(LOG_UNIMP, "Unknown QEMU_IFLA_INFO_SLAVE_KIND %s\n",
 719                      li_context->slave_name);
 720         }
 721         break;
 722     default:
 723         qemu_log_mask(LOG_UNIMP, "Unknown host QEMU_IFLA_INFO type: %d\n",
 724                       nlattr->nla_type);
 725         break;
 726     }
 727
 728     return 0;
 729 }
 730
 731 static abi_long host_to_target_data_inet_nlattr(struct nlattr *nlattr,
 732                                                 void *context)
 733 {
 734     uint32_t *u32;
 735     int i;
 736
 737     switch (nlattr->nla_type) {
 738     case QEMU_IFLA_INET_CONF:
 739         u32 = NLA_DATA(nlattr);
 740         for (i = 0; i < (nlattr->nla_len - NLA_HDRLEN) / sizeof(*u32);
 741              i++) {
 742             u32[i] = tswap32(u32[i]);
 743         }
 744         break;
 745     default:
 746         qemu_log_mask(LOG_UNIMP, "Unknown host AF_INET type: %d\n",
 747                       nlattr->nla_type);
 748     }
 749     return 0;
 750 }
 751
 752 static abi_long host_to_target_data_inet6_nlattr(struct nlattr *nlattr,
 753                                                 void *context)
 754 {
 755     uint32_t *u32;
 756     uint64_t *u64;
 757     struct ifla_cacheinfo *ci;
 758     int i;
 759
 760     switch (nlattr->nla_type) {
 761     /* binaries */
 762     case QEMU_IFLA_INET6_TOKEN:
 763         break;
 764     /* uint8_t */
 765     case QEMU_IFLA_INET6_ADDR_GEN_MODE:
 766         break;
 767     /* uint32_t */
 768     case QEMU_IFLA_INET6_FLAGS:
 769         u32 = NLA_DATA(nlattr);
 770         *u32 = tswap32(*u32);
 771         break;
 772     /* uint32_t[] */
 773     case QEMU_IFLA_INET6_CONF:
 774         u32 = NLA_DATA(nlattr);
 775         for (i = 0; i < (nlattr->nla_len - NLA_HDRLEN) / sizeof(*u32);
 776              i++) {
 777             u32[i] = tswap32(u32[i]);
 778         }
 779         break;
 780     /* ifla_cacheinfo */
 781     case QEMU_IFLA_INET6_CACHEINFO:
 782         ci = NLA_DATA(nlattr);
 783         ci->max_reasm_len = tswap32(ci->max_reasm_len);
 784         ci->tstamp = tswap32(ci->tstamp);
 785         ci->reachable_time = tswap32(ci->reachable_time);
 786         ci->retrans_time = tswap32(ci->retrans_time);
 787         break;
 788     /* uint64_t[] */
 789     case QEMU_IFLA_INET6_STATS:
 790     case QEMU_IFLA_INET6_ICMP6STATS:
 791         u64 = NLA_DATA(nlattr);
 792         for (i = 0; i < (nlattr->nla_len - NLA_HDRLEN) / sizeof(*u64);
 793              i++) {
 794             u64[i] = tswap64(u64[i]);
 795         }
 796         break;
 797     default:
 798         qemu_log_mask(LOG_UNIMP, "Unknown host AF_INET6 type: %d\n",
 799                       nlattr->nla_type);
 800     }
 801     return 0;
 802 }
 803
 804 static abi_long host_to_target_data_spec_nlattr(struct nlattr *nlattr,
 805                                                     void *context)
 806 {
 807     switch (nlattr->nla_type) {
 808     case AF_INET:
 809         return host_to_target_for_each_nlattr(NLA_DATA(nlattr), nlattr->nla_len,
 810                                               NULL,
 811                                              host_to_target_data_inet_nlattr);
 812     case AF_INET6:
 813         return host_to_target_for_each_nlattr(NLA_DATA(nlattr), nlattr->nla_len,
 814                                               NULL,
 815                                              host_to_target_data_inet6_nlattr);
 816     default:
 817         qemu_log_mask(LOG_UNIMP, "Unknown host AF_SPEC type: %d\n",
 818                       nlattr->nla_type);
 819         break;
 820     }
 821     return 0;
 822 }
 823
 824 static abi_long host_to_target_data_xdp_nlattr(struct nlattr *nlattr,
 825                                                void *context)
 826 {
 827     uint32_t *u32;
 828
 829     switch (nlattr->nla_type) {
 830     /* uint8_t */
 831     case QEMU_IFLA_XDP_ATTACHED:
 832         break;
 833     /* uint32_t */
 834     case QEMU_IFLA_XDP_PROG_ID:
 835         u32 = NLA_DATA(nlattr);
 836         *u32 = tswap32(*u32);
 837         break;
 838     default:
 839         qemu_log_mask(
 840             LOG_UNIMP, "Unknown host XDP type: %d\n", nlattr->nla_type);
 841         break;
 842     }
 843     return 0;
 844 }
 845
 846 static abi_long host_to_target_data_vlan_list_nlattr(struct nlattr *nlattr,
 847                                                      void *context)
 848 {
 849     struct ifla_vf_vlan_info *vlan_info;
 850
 851     switch (nlattr->nla_type) {
 852     /* struct ifla_vf_vlan_info */
 853     case IFLA_VF_VLAN_INFO:
 854         vlan_info = NLA_DATA(nlattr);
 855         vlan_info->vf = tswap32(vlan_info->vf);
 856         vlan_info->vlan = tswap32(vlan_info->vlan);
 857         vlan_info->qos = tswap32(vlan_info->qos);
 858         break;
 859     default:
 860         qemu_log_mask(LOG_UNIMP, "Unknown host VLAN LIST type: %d\n",
 861                       nlattr->nla_type);
 862         break;
 863     }
 864     return 0;
 865 }
 866
 867 static abi_long host_to_target_data_vf_stats_nlattr(struct nlattr *nlattr,
 868                                                     void *context)
 869 {
 870     uint64_t *u64;
 871
 872     switch (nlattr->nla_type) {
 873     /* uint64_t */
 874     case QEMU_IFLA_VF_STATS_RX_PACKETS:
 875     case QEMU_IFLA_VF_STATS_TX_PACKETS:
 876     case QEMU_IFLA_VF_STATS_RX_BYTES:
 877     case QEMU_IFLA_VF_STATS_TX_BYTES:
 878     case QEMU_IFLA_VF_STATS_BROADCAST:
 879     case QEMU_IFLA_VF_STATS_MULTICAST:
 880     case QEMU_IFLA_VF_STATS_PAD:
 881     case QEMU_IFLA_VF_STATS_RX_DROPPED:
 882     case QEMU_IFLA_VF_STATS_TX_DROPPED:
 883         u64 = NLA_DATA(nlattr);
 884         *u64 = tswap64(*u64);
 885         break;
 886     default:
 887         qemu_log_mask(LOG_UNIMP, "Unknown host VF STATS type: %d\n",
 888                       nlattr->nla_type);
 889         break;
 890     }
 891     return 0;
 892 }
 893
 894 static abi_long host_to_target_data_vfinfo_nlattr(struct nlattr *nlattr,
 895                                                   void *context)
 896 {
 897     struct ifla_vf_mac *mac;
 898     struct ifla_vf_vlan *vlan;
 899     struct ifla_vf_vlan_info *vlan_info;
 900     struct ifla_vf_spoofchk *spoofchk;
 901     struct ifla_vf_rate *rate;
 902     struct ifla_vf_link_state *link_state;
 903     struct ifla_vf_rss_query_en *rss_query_en;
 904     struct ifla_vf_trust *trust;
 905     struct ifla_vf_guid *guid;
 906
 907     switch (nlattr->nla_type) {
 908     /* struct ifla_vf_mac */
 909     case QEMU_IFLA_VF_MAC:
 910         mac = NLA_DATA(nlattr);
 911         mac->vf = tswap32(mac->vf);
 912         break;
 913     /* struct ifla_vf_broadcast */
 914     case QEMU_IFLA_VF_BROADCAST:
 915         break;
 916     /* struct struct ifla_vf_vlan */
 917     case QEMU_IFLA_VF_VLAN:
 918         vlan = NLA_DATA(nlattr);
 919         vlan->vf = tswap32(vlan->vf);
 920         vlan->vlan = tswap32(vlan->vlan);
 921         vlan->qos = tswap32(vlan->qos);
 922         break;
 923     /* struct ifla_vf_vlan_info */
 924     case QEMU_IFLA_VF_TX_RATE:
 925         vlan_info = NLA_DATA(nlattr);
 926         vlan_info->vf = tswap32(vlan_info->vf);
 927         vlan_info->vlan = tswap32(vlan_info->vlan);
 928         vlan_info->qos = tswap32(vlan_info->qos);
 929         break;
 930     /* struct ifla_vf_spoofchk */
 931     case QEMU_IFLA_VF_SPOOFCHK:
 932         spoofchk = NLA_DATA(nlattr);
 933         spoofchk->vf = tswap32(spoofchk->vf);
 934         spoofchk->setting = tswap32(spoofchk->setting);
 935         break;
 936     /* struct ifla_vf_rate */
 937     case QEMU_IFLA_VF_RATE:
 938         rate = NLA_DATA(nlattr);
 939         rate->vf = tswap32(rate->vf);
 940         rate->min_tx_rate = tswap32(rate->min_tx_rate);
 941         rate->max_tx_rate = tswap32(rate->max_tx_rate);
 942         break;
 943     /* struct ifla_vf_link_state */
 944     case QEMU_IFLA_VF_LINK_STATE:
 945         link_state = NLA_DATA(nlattr);
 946         link_state->vf = tswap32(link_state->vf);
 947         link_state->link_state = tswap32(link_state->link_state);
 948         break;
 949     /* struct ifla_vf_rss_query_en */
 950     case QEMU_IFLA_VF_RSS_QUERY_EN:
 951         rss_query_en = NLA_DATA(nlattr);
 952         rss_query_en->vf = tswap32(rss_query_en->vf);
 953         rss_query_en->setting = tswap32(rss_query_en->setting);
 954         break;
 955     /* struct ifla_vf_trust */
 956     case QEMU_IFLA_VF_TRUST:
 957         trust = NLA_DATA(nlattr);
 958         trust->vf = tswap32(trust->vf);
 959         trust->setting = tswap32(trust->setting);
 960         break;
 961     /* struct ifla_vf_guid  */
 962     case QEMU_IFLA_VF_IB_NODE_GUID:
 963     case QEMU_IFLA_VF_IB_PORT_GUID:
 964         guid = NLA_DATA(nlattr);
 965         guid->vf = tswap32(guid->vf);
 966         guid->guid = tswap32(guid->guid);
 967         break;
 968     /* nested */
 969     case QEMU_IFLA_VF_VLAN_LIST:
 970         return host_to_target_for_each_nlattr(RTA_DATA(nlattr), nlattr->nla_len,
 971                                               NULL,
 972                                           host_to_target_data_vlan_list_nlattr);
 973     case QEMU_IFLA_VF_STATS:
 974         return host_to_target_for_each_nlattr(RTA_DATA(nlattr), nlattr->nla_len,
 975                                               NULL,
 976                                            host_to_target_data_vf_stats_nlattr);
 977     default:
 978         qemu_log_mask(LOG_UNIMP, "Unknown host VFINFO type: %d\n",
 979                       nlattr->nla_type);
 980         break;
 981     }
 982     return 0;
 983 }
 984
 985 static abi_long host_to_target_data_link_rtattr(struct rtattr *rtattr)
 986 {
 987     uint32_t *u32;
 988     struct rtnl_link_stats *st;
 989     struct rtnl_link_stats64 *st64;
 990     struct rtnl_link_ifmap *map;
 991     struct linkinfo_context li_context;
 992
 993     switch (rtattr->rta_type) {
 994     /* binary stream */
 995     case QEMU_IFLA_ADDRESS:
 996     case QEMU_IFLA_BROADCAST:
 997     case QEMU_IFLA_PERM_ADDRESS:
 998     case QEMU_IFLA_PHYS_PORT_ID:
 999     /* string */
1000     case QEMU_IFLA_IFNAME:
1001     case QEMU_IFLA_QDISC:
1002     case QEMU_IFLA_PARENT_DEV_NAME:
1003     case QEMU_IFLA_PARENT_DEV_BUS_NAME:
1004         break;
1005     /* uin8_t */
1006     case QEMU_IFLA_OPERSTATE:
1007     case QEMU_IFLA_LINKMODE:
1008     case QEMU_IFLA_CARRIER:
1009     case QEMU_IFLA_PROTO_DOWN:
1010         break;
1011     /* uint32_t */
1012     case QEMU_IFLA_MTU:
1013     case QEMU_IFLA_LINK:
1014     case QEMU_IFLA_WEIGHT:
1015     case QEMU_IFLA_TXQLEN:
1016     case QEMU_IFLA_CARRIER_CHANGES:
1017     case QEMU_IFLA_NUM_RX_QUEUES:
1018     case QEMU_IFLA_NUM_TX_QUEUES:
1019     case QEMU_IFLA_PROMISCUITY:
1020     case QEMU_IFLA_EXT_MASK:
1021     case QEMU_IFLA_LINK_NETNSID:
1022     case QEMU_IFLA_GROUP:
1023     case QEMU_IFLA_MASTER:
1024     case QEMU_IFLA_NUM_VF:
1025     case QEMU_IFLA_GSO_MAX_SEGS:
1026     case QEMU_IFLA_GSO_MAX_SIZE:
1027     case QEMU_IFLA_CARRIER_UP_COUNT:
1028     case QEMU_IFLA_CARRIER_DOWN_COUNT:
1029     case QEMU_IFLA_MIN_MTU:
1030     case QEMU_IFLA_MAX_MTU:
1031         u32 = RTA_DATA(rtattr);
1032         *u32 = tswap32(*u32);
1033         break;
1034     /* struct rtnl_link_stats */
1035     case QEMU_IFLA_STATS:
1036         st = RTA_DATA(rtattr);
1037         st->rx_packets = tswap32(st->rx_packets);
1038         st->tx_packets = tswap32(st->tx_packets);
1039         st->rx_bytes = tswap32(st->rx_bytes);
1040         st->tx_bytes = tswap32(st->tx_bytes);
1041         st->rx_errors = tswap32(st->rx_errors);
1042         st->tx_errors = tswap32(st->tx_errors);
1043         st->rx_dropped = tswap32(st->rx_dropped);
1044         st->tx_dropped = tswap32(st->tx_dropped);
1045         st->multicast = tswap32(st->multicast);
1046         st->collisions = tswap32(st->collisions);
1047
1048         /* detailed rx_errors: */
1049         st->rx_length_errors = tswap32(st->rx_length_errors);
1050         st->rx_over_errors = tswap32(st->rx_over_errors);
1051         st->rx_crc_errors = tswap32(st->rx_crc_errors);
1052         st->rx_frame_errors = tswap32(st->rx_frame_errors);
1053         st->rx_fifo_errors = tswap32(st->rx_fifo_errors);
1054         st->rx_missed_errors = tswap32(st->rx_missed_errors);
1055
1056         /* detailed tx_errors */
1057         st->tx_aborted_errors = tswap32(st->tx_aborted_errors);
1058         st->tx_carrier_errors = tswap32(st->tx_carrier_errors);
1059         st->tx_fifo_errors = tswap32(st->tx_fifo_errors);
1060         st->tx_heartbeat_errors = tswap32(st->tx_heartbeat_errors);
1061         st->tx_window_errors = tswap32(st->tx_window_errors);
1062
1063         /* for cslip etc */
1064         st->rx_compressed = tswap32(st->rx_compressed);
1065         st->tx_compressed = tswap32(st->tx_compressed);
1066         break;
1067     /* struct rtnl_link_stats64 */
1068     case QEMU_IFLA_STATS64:
1069         st64 = RTA_DATA(rtattr);
1070         st64->rx_packets = tswap64(st64->rx_packets);
1071         st64->tx_packets = tswap64(st64->tx_packets);
1072         st64->rx_bytes = tswap64(st64->rx_bytes);
1073         st64->tx_bytes = tswap64(st64->tx_bytes);
1074         st64->rx_errors = tswap64(st64->rx_errors);
1075         st64->tx_errors = tswap64(st64->tx_errors);
1076         st64->rx_dropped = tswap64(st64->rx_dropped);
1077         st64->tx_dropped = tswap64(st64->tx_dropped);
1078         st64->multicast = tswap64(st64->multicast);
1079         st64->collisions = tswap64(st64->collisions);
1080
1081         /* detailed rx_errors: */
1082         st64->rx_length_errors = tswap64(st64->rx_length_errors);
1083         st64->rx_over_errors = tswap64(st64->rx_over_errors);
1084         st64->rx_crc_errors = tswap64(st64->rx_crc_errors);
1085         st64->rx_frame_errors = tswap64(st64->rx_frame_errors);
1086         st64->rx_fifo_errors = tswap64(st64->rx_fifo_errors);
1087         st64->rx_missed_errors = tswap64(st64->rx_missed_errors);
1088
1089         /* detailed tx_errors */
1090         st64->tx_aborted_errors = tswap64(st64->tx_aborted_errors);
1091         st64->tx_carrier_errors = tswap64(st64->tx_carrier_errors);
1092         st64->tx_fifo_errors = tswap64(st64->tx_fifo_errors);
1093         st64->tx_heartbeat_errors = tswap64(st64->tx_heartbeat_errors);
1094         st64->tx_window_errors = tswap64(st64->tx_window_errors);
1095
1096         /* for cslip etc */
1097         st64->rx_compressed = tswap64(st64->rx_compressed);
1098         st64->tx_compressed = tswap64(st64->tx_compressed);
1099         break;
1100     /* struct rtnl_link_ifmap */
1101     case QEMU_IFLA_MAP:
1102         map = RTA_DATA(rtattr);
1103         map->mem_start = tswap64(map->mem_start);
1104         map->mem_end = tswap64(map->mem_end);
1105         map->base_addr = tswap64(map->base_addr);
1106         map->irq = tswap16(map->irq);
1107         break;
1108     /* nested */
1109     case QEMU_IFLA_LINKINFO:
1110         memset(&li_context, 0, sizeof(li_context));
1111         return host_to_target_for_each_nlattr(RTA_DATA(rtattr), rtattr->rta_len,
1112                                               &li_context,
1113                                            host_to_target_data_linkinfo_nlattr);
1114     case QEMU_IFLA_AF_SPEC:
1115         return host_to_target_for_each_nlattr(RTA_DATA(rtattr), rtattr->rta_len,
1116                                               NULL,
1117                                              host_to_target_data_spec_nlattr);
1118     case QEMU_IFLA_XDP:
1119         return host_to_target_for_each_nlattr(RTA_DATA(rtattr), rtattr->rta_len,
1120                                               NULL,
1121                                                 host_to_target_data_xdp_nlattr);
1122     case QEMU_IFLA_VFINFO_LIST:
1123         return host_to_target_for_each_nlattr(RTA_DATA(rtattr), rtattr->rta_len,
1124                                               NULL,
1125                                              host_to_target_data_vfinfo_nlattr);
1126     default:
1127         qemu_log_mask(LOG_UNIMP, "Unknown host QEMU_IFLA type: %d\n",
1128                       rtattr->rta_type);
1129         break;
1130     }
1131     return 0;
1132 }
1133
1134 static abi_long host_to_target_data_addr_rtattr(struct rtattr *rtattr)
1135 {
1136     uint32_t *u32;
1137     struct ifa_cacheinfo *ci;
1138
1139     switch (rtattr->rta_type) {
1140     /* binary: depends on family type */
1141     case IFA_ADDRESS:
1142     case IFA_LOCAL:
1143         break;
1144     /* string */
1145     case IFA_LABEL:
1146         break;
1147     /* u32 */
1148     case IFA_FLAGS:
1149     case IFA_BROADCAST:
1150         u32 = RTA_DATA(rtattr);
1151         *u32 = tswap32(*u32);
1152         break;
1153     /* struct ifa_cacheinfo */
1154     case IFA_CACHEINFO:
1155         ci = RTA_DATA(rtattr);
1156         ci->ifa_prefered = tswap32(ci->ifa_prefered);
1157         ci->ifa_valid = tswap32(ci->ifa_valid);
1158         ci->cstamp = tswap32(ci->cstamp);
1159         ci->tstamp = tswap32(ci->tstamp);
1160         break;
1161     default:
1162         qemu_log_mask(
1163             LOG_UNIMP, "Unknown host IFA type: %d\n", rtattr->rta_type);
1164         break;
1165     }
1166     return 0;
1167 }
1168
1169 static abi_long host_to_target_data_route_rtattr(struct rtattr *rtattr)
1170 {
1171     uint32_t *u32;
1172     struct rta_cacheinfo *ci;
1173
1174     switch (rtattr->rta_type) {
1175     /* binary: depends on family type */
1176     case QEMU_RTA_GATEWAY:
1177     case QEMU_RTA_DST:
1178     case QEMU_RTA_PREFSRC:
1179         break;
1180     /* u8 */
1181     case QEMU_RTA_PREF:
1182         break;
1183     /* u32 */
1184     case QEMU_RTA_PRIORITY:
1185     case QEMU_RTA_TABLE:
1186     case QEMU_RTA_OIF:
1187         u32 = RTA_DATA(rtattr);
1188         *u32 = tswap32(*u32);
1189         break;
1190     /* struct rta_cacheinfo */
1191     case QEMU_RTA_CACHEINFO:
1192         ci = RTA_DATA(rtattr);
1193         ci->rta_clntref = tswap32(ci->rta_clntref);
1194         ci->rta_lastuse = tswap32(ci->rta_lastuse);
1195         ci->rta_expires = tswap32(ci->rta_expires);
1196         ci->rta_error = tswap32(ci->rta_error);
1197         ci->rta_used = tswap32(ci->rta_used);
1198 #if defined(RTNETLINK_HAVE_PEERINFO)
1199         ci->rta_id = tswap32(ci->rta_id);
1200         ci->rta_ts = tswap32(ci->rta_ts);
1201         ci->rta_tsage = tswap32(ci->rta_tsage);
1202 #endif
1203         break;
1204     default:
1205         qemu_log_mask(
1206             LOG_UNIMP, "Unknown host RTA type: %d\n", rtattr->rta_type);
1207         break;
1208     }
1209     return 0;
1210 }
1211
1212 static abi_long host_to_target_link_rtattr(struct rtattr *rtattr,
1213                                          uint32_t rtattr_len)
1214 {
1215     return host_to_target_for_each_rtattr(rtattr, rtattr_len,
1216                                           host_to_target_data_link_rtattr);
1217 }
1218
1219 static abi_long host_to_target_addr_rtattr(struct rtattr *rtattr,
1220                                          uint32_t rtattr_len)
1221 {
1222     return host_to_target_for_each_rtattr(rtattr, rtattr_len,
1223                                           host_to_target_data_addr_rtattr);
1224 }
1225
1226 static abi_long host_to_target_route_rtattr(struct rtattr *rtattr,
1227                                          uint32_t rtattr_len)
1228 {
1229     return host_to_target_for_each_rtattr(rtattr, rtattr_len,
1230                                           host_to_target_data_route_rtattr);
1231 }
1232
1233 static abi_long host_to_target_data_route(struct nlmsghdr *nlh)
1234 {
1235     uint32_t nlmsg_len;
1236     struct ifinfomsg *ifi;
1237     struct ifaddrmsg *ifa;
1238     struct rtmsg *rtm;
1239
1240     nlmsg_len = nlh->nlmsg_len;
1241     switch (nlh->nlmsg_type) {
1242     case RTM_NEWLINK:
1243     case RTM_DELLINK:
1244     case RTM_GETLINK:
1245         if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifi))) {
1246             ifi = NLMSG_DATA(nlh);
1247             ifi->ifi_type = tswap16(ifi->ifi_type);
1248             ifi->ifi_index = tswap32(ifi->ifi_index);
1249             ifi->ifi_flags = tswap32(ifi->ifi_flags);
1250             ifi->ifi_change = tswap32(ifi->ifi_change);
1251             host_to_target_link_rtattr(IFLA_RTA(ifi),
1252                                        nlmsg_len - NLMSG_LENGTH(sizeof(*ifi)));
1253         }
1254         break;
1255     case RTM_NEWADDR:
1256     case RTM_DELADDR:
1257     case RTM_GETADDR:
1258         if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifa))) {
1259             ifa = NLMSG_DATA(nlh);
1260             ifa->ifa_index = tswap32(ifa->ifa_index);
1261             host_to_target_addr_rtattr(IFA_RTA(ifa),
1262                                        nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
1263         }
1264         break;
1265     case RTM_NEWROUTE:
1266     case RTM_DELROUTE:
1267     case RTM_GETROUTE:
1268         if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*rtm))) {
1269             rtm = NLMSG_DATA(nlh);
1270             rtm->rtm_flags = tswap32(rtm->rtm_flags);
1271             host_to_target_route_rtattr(RTM_RTA(rtm),
1272                                         nlmsg_len - NLMSG_LENGTH(sizeof(*rtm)));
1273         }
1274         break;
1275     default:
1276         return -TARGET_EINVAL;
1277     }
1278     return 0;
1279 }
1280
1281 static inline abi_long host_to_target_nlmsg_route(struct nlmsghdr *nlh,
1282                                                   size_t len)
1283 {
1284     return host_to_target_for_each_nlmsg(nlh, len, host_to_target_data_route);
1285 }
1286
1287 static abi_long target_to_host_for_each_rtattr(struct rtattr *rtattr,
1288                                                size_t len,
1289                                                abi_long (*target_to_host_rtattr)
1290                                                         (struct rtattr *))
1291 {
1292     unsigned short aligned_rta_len;
1293     abi_long ret;
1294
1295     while (len >= sizeof(struct rtattr)) {
1296         if (tswap16(rtattr->rta_len) < sizeof(struct rtattr) ||
1297             tswap16(rtattr->rta_len) > len) {
1298             break;
1299         }
1300         rtattr->rta_len = tswap16(rtattr->rta_len);
1301         rtattr->rta_type = tswap16(rtattr->rta_type);
1302         ret = target_to_host_rtattr(rtattr);
1303         if (ret < 0) {
1304             return ret;
1305         }
1306
1307         aligned_rta_len = RTA_ALIGN(rtattr->rta_len);
1308         if (aligned_rta_len >= len) {
1309             break;
1310         }
1311         len -= aligned_rta_len;
1312         rtattr = (struct rtattr *)(((char *)rtattr) + aligned_rta_len);
1313     }
1314     return 0;
1315 }
1316
1317 static abi_long target_to_host_data_link_rtattr(struct rtattr *rtattr)
1318 {
1319     uint32_t *u32;
1320
1321     switch (rtattr->rta_type) {
1322     /* uint32_t */
1323     case QEMU_IFLA_EXT_MASK:
1324         u32 = RTA_DATA(rtattr);
1325         *u32 = tswap32(*u32);
1326         break;
1327     default:
1328         qemu_log_mask(LOG_UNIMP, "Unknown target QEMU_IFLA type: %d\n",
1329                       rtattr->rta_type);
1330         break;
1331     }
1332     return 0;
1333 }
1334
1335 static abi_long target_to_host_data_addr_rtattr(struct rtattr *rtattr)
1336 {
1337     switch (rtattr->rta_type) {
1338     /* binary: depends on family type */
1339     case IFA_LOCAL:
1340     case IFA_ADDRESS:
1341         break;
1342     default:
1343         qemu_log_mask(LOG_UNIMP, "Unknown target IFA type: %d\n",
1344                       rtattr->rta_type);
1345         break;
1346     }
1347     return 0;
1348 }
1349
1350 static abi_long target_to_host_data_route_rtattr(struct rtattr *rtattr)
1351 {
1352     uint32_t *u32;
1353     switch (rtattr->rta_type) {
1354     /* binary: depends on family type */
1355     case QEMU_RTA_DST:
1356     case QEMU_RTA_SRC:
1357     case QEMU_RTA_GATEWAY:
1358         break;
1359     /* u32 */
1360     case QEMU_RTA_PRIORITY:
1361     case QEMU_RTA_TABLE:
1362     case QEMU_RTA_OIF:
1363         u32 = RTA_DATA(rtattr);
1364         *u32 = tswap32(*u32);
1365         break;
1366     default:
1367         qemu_log_mask(LOG_UNIMP, "Unknown target RTA type: %d\n",
1368                       rtattr->rta_type);
1369         break;
1370     }
1371     return 0;
1372 }
1373
1374 static void target_to_host_link_rtattr(struct rtattr *rtattr,
1375                                        uint32_t rtattr_len)
1376 {
1377     target_to_host_for_each_rtattr(rtattr, rtattr_len,
1378                                    target_to_host_data_link_rtattr);
1379 }
1380
1381 static void target_to_host_addr_rtattr(struct rtattr *rtattr,
1382                                      uint32_t rtattr_len)
1383 {
1384     target_to_host_for_each_rtattr(rtattr, rtattr_len,
1385                                    target_to_host_data_addr_rtattr);
1386 }
1387
1388 static void target_to_host_route_rtattr(struct rtattr *rtattr,
1389                                      uint32_t rtattr_len)
1390 {
1391     target_to_host_for_each_rtattr(rtattr, rtattr_len,
1392                                    target_to_host_data_route_rtattr);
1393 }
1394
1395 static abi_long target_to_host_data_route(struct nlmsghdr *nlh)
1396 {
1397     struct ifinfomsg *ifi;
1398     struct ifaddrmsg *ifa;
1399     struct rtmsg *rtm;
1400
1401     switch (nlh->nlmsg_type) {
1402     case RTM_NEWLINK:
1403     case RTM_DELLINK:
1404     case RTM_SETLINK:
1405     case RTM_GETLINK:
1406         if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifi))) {
1407             ifi = NLMSG_DATA(nlh);
1408             ifi->ifi_type = tswap16(ifi->ifi_type);
1409             ifi->ifi_index = tswap32(ifi->ifi_index);
1410             ifi->ifi_flags = tswap32(ifi->ifi_flags);
1411             ifi->ifi_change = tswap32(ifi->ifi_change);
1412             target_to_host_link_rtattr(IFLA_RTA(ifi), nlh->nlmsg_len -
1413                                        NLMSG_LENGTH(sizeof(*ifi)));
1414         }
1415         break;
1416     case RTM_GETADDR:
1417     case RTM_NEWADDR:
1418     case RTM_DELADDR:
1419         if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifa))) {
1420             ifa = NLMSG_DATA(nlh);
1421             ifa->ifa_index = tswap32(ifa->ifa_index);
1422             target_to_host_addr_rtattr(IFA_RTA(ifa), nlh->nlmsg_len -
1423                                        NLMSG_LENGTH(sizeof(*ifa)));
1424         }
1425         break;
1426     case RTM_NEWROUTE:
1427     case RTM_DELROUTE:
1428     case RTM_GETROUTE:
1429         if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*rtm))) {
1430             rtm = NLMSG_DATA(nlh);
1431             rtm->rtm_flags = tswap32(rtm->rtm_flags);
1432             target_to_host_route_rtattr(RTM_RTA(rtm), nlh->nlmsg_len -
1433                                         NLMSG_LENGTH(sizeof(*rtm)));
1434         }
1435         break;
1436     default:
1437         return -TARGET_EOPNOTSUPP;
1438     }
1439     return 0;
1440 }
1441
1442 static abi_long target_to_host_nlmsg_route(struct nlmsghdr *nlh, size_t len)
1443 {
1444     return target_to_host_for_each_nlmsg(nlh, len, target_to_host_data_route);
1445 }
1446 #endif /* CONFIG_RTNETLINK */
1447
1448 static abi_long host_to_target_data_audit(struct nlmsghdr *nlh)
1449 {
1450     switch (nlh->nlmsg_type) {
1451     default:
1452         qemu_log_mask(LOG_UNIMP, "Unknown host audit message type %d\n",
1453                       nlh->nlmsg_type);
1454         return -TARGET_EINVAL;
1455     }
1456     return 0;
1457 }
1458
1459 static inline abi_long host_to_target_nlmsg_audit(struct nlmsghdr *nlh,
1460                                                   size_t len)
1461 {
1462     return host_to_target_for_each_nlmsg(nlh, len, host_to_target_data_audit);
1463 }
1464
1465 static abi_long target_to_host_data_audit(struct nlmsghdr *nlh)
1466 {
1467     switch (nlh->nlmsg_type) {
1468     case AUDIT_USER:
1469     case AUDIT_FIRST_USER_MSG ... AUDIT_LAST_USER_MSG:
1470     case AUDIT_FIRST_USER_MSG2 ... AUDIT_LAST_USER_MSG2:
1471         break;
1472     default:
1473         qemu_log_mask(LOG_UNIMP, "Unknown target audit message type %d\n",
1474                       nlh->nlmsg_type);
1475         return -TARGET_EINVAL;
1476     }
1477
1478     return 0;
1479 }
1480
1481 static abi_long target_to_host_nlmsg_audit(struct nlmsghdr *nlh, size_t len)
1482 {
1483     return target_to_host_for_each_nlmsg(nlh, len, target_to_host_data_audit);
1484 }
1485
1486 static abi_long packet_target_to_host_sockaddr(void *host_addr,
1487                                                abi_ulong target_addr,
1488                                                socklen_t len)
1489 {
1490     struct sockaddr *addr = host_addr;
1491     struct target_sockaddr *target_saddr;
1492
1493     target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1494     if (!target_saddr) {
1495         return -TARGET_EFAULT;
1496     }
1497
1498     memcpy(addr, target_saddr, len);
1499     addr->sa_family = tswap16(target_saddr->sa_family);
1500     /* spkt_protocol is big-endian */
1501
1502     unlock_user(target_saddr, target_addr, 0);
1503     return 0;
1504 }
1505
1506 TargetFdTrans target_packet_trans = {
1507     .target_to_host_addr = packet_target_to_host_sockaddr,
1508 };
1509
1510 #ifdef CONFIG_RTNETLINK
1511 static abi_long netlink_route_target_to_host(void *buf, size_t len)
1512 {
1513     abi_long ret;
1514
1515     ret = target_to_host_nlmsg_route(buf, len);
1516     if (ret < 0) {
1517         return ret;
1518     }
1519
1520     return len;
1521 }
1522
1523 static abi_long netlink_route_host_to_target(void *buf, size_t len)
1524 {
1525     abi_long ret;
1526
1527     ret = host_to_target_nlmsg_route(buf, len);
1528     if (ret < 0) {
1529         return ret;
1530     }
1531
1532     return len;
1533 }
1534
1535 TargetFdTrans target_netlink_route_trans = {
1536     .target_to_host_data = netlink_route_target_to_host,
1537     .host_to_target_data = netlink_route_host_to_target,
1538 };
1539 #endif /* CONFIG_RTNETLINK */
1540
1541 static abi_long netlink_audit_target_to_host(void *buf, size_t len)
1542 {
1543     abi_long ret;
1544
1545     ret = target_to_host_nlmsg_audit(buf, len);
1546     if (ret < 0) {
1547         return ret;
1548     }
1549
1550     return len;
1551 }
1552
1553 static abi_long netlink_audit_host_to_target(void *buf, size_t len)
1554 {
1555     abi_long ret;
1556
1557     ret = host_to_target_nlmsg_audit(buf, len);
1558     if (ret < 0) {
1559         return ret;
1560     }
1561
1562     return len;
1563 }
1564
1565 TargetFdTrans target_netlink_audit_trans = {
1566     .target_to_host_data = netlink_audit_target_to_host,
1567     .host_to_target_data = netlink_audit_host_to_target,
1568 };
1569
1570 /* signalfd siginfo conversion */
1571
1572 static void
1573 host_to_target_signalfd_siginfo(struct signalfd_siginfo *tinfo,
1574                                 const struct signalfd_siginfo *info)
1575 {
1576     int sig = host_to_target_signal(info->ssi_signo);
1577
1578     /* linux/signalfd.h defines a ssi_addr_lsb
1579      * not defined in sys/signalfd.h but used by some kernels
1580      */
1581
1582 #ifdef BUS_MCEERR_AO
1583     if (tinfo->ssi_signo == SIGBUS &&
1584         (tinfo->ssi_code == BUS_MCEERR_AR ||
1585          tinfo->ssi_code == BUS_MCEERR_AO)) {
1586         uint16_t *ssi_addr_lsb = (uint16_t *)(&info->ssi_addr + 1);
1587         uint16_t *tssi_addr_lsb = (uint16_t *)(&tinfo->ssi_addr + 1);
1588         *tssi_addr_lsb = tswap16(*ssi_addr_lsb);
1589     }
1590 #endif
1591
1592     tinfo->ssi_signo = tswap32(sig);
1593     tinfo->ssi_errno = tswap32(tinfo->ssi_errno);
1594     tinfo->ssi_code = tswap32(info->ssi_code);
1595     tinfo->ssi_pid = tswap32(info->ssi_pid);
1596     tinfo->ssi_uid = tswap32(info->ssi_uid);
1597     tinfo->ssi_fd = tswap32(info->ssi_fd);
1598     tinfo->ssi_tid = tswap32(info->ssi_tid);
1599     tinfo->ssi_band = tswap32(info->ssi_band);
1600     tinfo->ssi_overrun = tswap32(info->ssi_overrun);
1601     tinfo->ssi_trapno = tswap32(info->ssi_trapno);
1602     tinfo->ssi_status = tswap32(info->ssi_status);
1603     tinfo->ssi_int = tswap32(info->ssi_int);
1604     tinfo->ssi_ptr = tswap64(info->ssi_ptr);
1605     tinfo->ssi_utime = tswap64(info->ssi_utime);
1606     tinfo->ssi_stime = tswap64(info->ssi_stime);
1607     tinfo->ssi_addr = tswap64(info->ssi_addr);
1608 }
1609
1610 static abi_long host_to_target_data_signalfd(void *buf, size_t len)
1611 {
1612     int i;
1613
1614     for (i = 0; i < len; i += sizeof(struct signalfd_siginfo)) {
1615         host_to_target_signalfd_siginfo(buf + i, buf + i);
1616     }
1617
1618     return len;
1619 }
1620
1621 TargetFdTrans target_signalfd_trans = {
1622     .host_to_target_data = host_to_target_data_signalfd,
1623 };
1624
1625 static abi_long swap_data_eventfd(void *buf, size_t len)
1626 {
1627     uint64_t *counter = buf;
1628     int i;
1629
1630     if (len < sizeof(uint64_t)) {
1631         return -EINVAL;
1632     }
1633
1634     for (i = 0; i < len; i += sizeof(uint64_t)) {
1635         *counter = tswap64(*counter);
1636         counter++;
1637     }
1638
1639     return len;
1640 }
1641
1642 TargetFdTrans target_eventfd_trans = {
1643     .host_to_target_data = swap_data_eventfd,
1644     .target_to_host_data = swap_data_eventfd,
1645 };
1646
1647 #if (defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)) || \
1648     (defined(CONFIG_INOTIFY1) && defined(TARGET_NR_inotify_init1) && \
1649      defined(__NR_inotify_init1))
1650 static abi_long host_to_target_data_inotify(void *buf, size_t len)
1651 {
1652     struct inotify_event *ev;
1653     int i;
1654     uint32_t name_len;
1655
1656     for (i = 0; i < len; i += sizeof(struct inotify_event) + name_len) {
1657         ev = (struct inotify_event *)((char *)buf + i);
1658         name_len = ev->len;
1659
1660         ev->wd = tswap32(ev->wd);
1661         ev->mask = tswap32(ev->mask);
1662         ev->cookie = tswap32(ev->cookie);
1663         ev->len = tswap32(name_len);
1664     }
1665
1666     return len;
1667 }
1668
1669 TargetFdTrans target_inotify_trans = {
1670     .host_to_target_data = host_to_target_data_inotify,
1671 };
1672 #endif