drivers/staging/rtl8712/rtl871x_security.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /******************************************************************************
   3  *
   4  * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
   5  *
   6  * Modifications for inclusion into the Linux staging tree are
   7  * Copyright(c) 2010 Larry Finger. All rights reserved.
   8  *
   9  * Contact information:
  10  * WLAN FAE <[email protected]>
  11  * Larry Finger <[email protected]>
  12  *
  13  ******************************************************************************/
  14 #ifndef __RTL871X_SECURITY_H_
  15 #define __RTL871X_SECURITY_H_
  16
  17 #include "osdep_service.h"
  18 #include "drv_types.h"
  19
  20 #define _NO_PRIVACY_    0x0
  21 #define _WEP40_         0x1
  22 #define _TKIP_          0x2
  23 #define _TKIP_WTMIC_    0x3
  24 #define _AES_           0x4
  25 #define _WEP104_        0x5
  26
  27 #define _WPA_IE_ID_     0xdd
  28 #define _WPA2_IE_ID_    0x30
  29
  30 #ifndef Ndis802_11AuthModeWPA2
  31 #define Ndis802_11AuthModeWPA2 (Ndis802_11AuthModeWPANone + 1)
  32 #endif
  33
  34 #ifndef Ndis802_11AuthModeWPA2PSK
  35 #define Ndis802_11AuthModeWPA2PSK (Ndis802_11AuthModeWPANone + 2)
  36 #endif
  37
  38 union pn48 {
  39         u64 val;
  40 #if defined(__BIG_ENDIAN)
  41         struct {
  42                 u8 TSC7;
  43                 u8 TSC6;
  44                 u8 TSC5;
  45                 u8 TSC4;
  46                 u8 TSC3;
  47                 u8 TSC2;
  48                 u8 TSC1;
  49                 u8 TSC0;
  50         } _byte_;
  51 #else
  52         struct {
  53                 u8 TSC0;
  54                 u8 TSC1;
  55                 u8 TSC2;
  56                 u8 TSC3;
  57                 u8 TSC4;
  58                 u8 TSC5;
  59                 u8 TSC6;
  60                 u8 TSC7;
  61         } _byte_;
  62 #endif
  63 };
  64
  65 union Keytype {
  66         u8 skey[16];
  67         u32 lkey[4];
  68 };
  69
  70 struct RT_PMKID_LIST {
  71         u8 bUsed;
  72         u8 Bssid[6];
  73         u8 PMKID[16];
  74         u8 SsidBuf[33];
  75         u8 *ssid_octet;
  76         u16 ssid_length;
  77 };
  78
  79 struct security_priv {
  80         u32 AuthAlgrthm;                /* 802.11 auth, could be open, shared,
  81                                          * 8021x and authswitch
  82                                          */
  83         u32 PrivacyAlgrthm;             /* This specify the privacy for shared
  84                                          * auth. algorithm.
  85                                          */
  86         u32 PrivacyKeyIndex;            /* this is only valid for legendary
  87                                          * wep, 0~3 for key id.
  88                                          */
  89         union Keytype DefKey[4];        /* this is only valid for def. key */
  90         u32 DefKeylen[4];
  91         u32 XGrpPrivacy;                /* This specify the privacy algthm.
  92                                          * used for Grp key
  93                                          */
  94         u32 XGrpKeyid;                  /* key id used for Grp Key */
  95         union Keytype   XGrpKey[2];     /* 802.1x Group Key, for
  96                                          * inx0 and inx1
  97                                          */
  98         union Keytype   XGrptxmickey[2];
  99         union Keytype   XGrprxmickey[2];
 100         union pn48 Grptxpn;             /* PN48 used for Grp Key xmit. */
 101         union pn48 Grprxpn;             /* PN48 used for Grp Key recv. */
 102         u8 wps_hw_pbc_pressed;/*for hw pbc pressed*/
 103         u8 wps_phase;/*for wps*/
 104         u8 wps_ie[MAX_WPA_IE_LEN<<2];
 105         int wps_ie_len;
 106         u8      binstallGrpkey;
 107         u8      busetkipkey;
 108         struct timer_list tkip_timer;
 109         u8      bcheck_grpkey;
 110         u8      bgrpkey_handshake;
 111         s32     sw_encrypt;     /* from registry_priv */
 112         s32     sw_decrypt;     /* from registry_priv */
 113         s32     hw_decrypted;   /* if the rx packets is hw_decrypted==false,
 114                                  * it means the hw has not been ready.
 115                                  */
 116         u32 ndisauthtype;       /* keeps the auth_type & enc_status from upper
 117                                  * layer ioctl(wpa_supplicant or wzc)
 118                                  */
 119         u32 ndisencryptstatus;
 120         struct wlan_bssid_ex sec_bss;  /* for joinbss (h2c buffer) usage */
 121         struct NDIS_802_11_WEP ndiswep;
 122         u8 assoc_info[600];
 123         u8 szofcapability[256]; /* for wpa2 usage */
 124         u8 oidassociation[512]; /* for wpa/wpa2 usage */
 125         u8 authenticator_ie[256];  /* store ap security information element */
 126         u8 supplicant_ie[256];  /* store sta security information element */
 127         /* for tkip countermeasure */
 128         u32 last_mic_err_time;
 129         u8      btkip_countermeasure;
 130         u8      btkip_wait_report;
 131         u32 btkip_countermeasure_time;
 132         /*-------------------------------------------------------------------
 133          * For WPA2 Pre-Authentication.
 134          *------------------------------------------------------------------
 135          **/
 136         struct RT_PMKID_LIST            PMKIDList[NUM_PMKID_CACHE];
 137         u8                              PMKIDIndex;
 138 };
 139
 140 #define GET_ENCRY_ALGO(psecuritypriv, psta, encry_algo, bmcst) \
 141 do { \
 142         switch (psecuritypriv->AuthAlgrthm) { \
 143         case 0: \
 144         case 1: \
 145         case 3: \
 146                 encry_algo = (u8)psecuritypriv->PrivacyAlgrthm; \
 147                 break; \
 148         case 2: \
 149                 if (bmcst) \
 150                         encry_algo = (u8)psecuritypriv->XGrpPrivacy; \
 151                 else \
 152                         encry_algo = (u8)psta->XPrivacy; \
 153                 break; \
 154         } \
 155 } while (0)
 156 #define SET_ICE_IV_LEN(iv_len, icv_len, encrypt)\
 157 do {\
 158         switch (encrypt) { \
 159         case _WEP40_: \
 160         case _WEP104_: \
 161                 iv_len = 4; \
 162                 icv_len = 4; \
 163                 break; \
 164         case _TKIP_: \
 165                 iv_len = 8; \
 166                 icv_len = 4; \
 167                 break; \
 168         case _AES_: \
 169                 iv_len = 8; \
 170                 icv_len = 8; \
 171                 break; \
 172         default: \
 173                 iv_len = 0; \
 174                 icv_len = 0; \
 175                 break; \
 176         } \
 177 } while (0)
 178 #define GET_TKIP_PN(iv, txpn) \
 179 do {\
 180         txpn._byte_.TSC0 = iv[2];\
 181         txpn._byte_.TSC1 = iv[0];\
 182         txpn._byte_.TSC2 = iv[4];\
 183         txpn._byte_.TSC3 = iv[5];\
 184         txpn._byte_.TSC4 = iv[6];\
 185         txpn._byte_.TSC5 = iv[7];\
 186 } while (0)
 187
 188 #define ROL32(A, n) (((A) << (n)) | (((A)>>(32-(n)))  & ((1UL << (n)) - 1)))
 189 #define ROR32(A, n) ROL32((A), 32 - (n))
 190
 191 struct mic_data {
 192         u32  K0, K1;         /* Key */
 193         u32  L, R;           /* Current state */
 194         u32  M;              /* Message accumulator (single word) */
 195         u32  nBytesInM;      /* # bytes in M */
 196 };
 197
 198 void seccalctkipmic(
 199         u8  *key,
 200         u8  *header,
 201         u8  *data,
 202         u32  data_len,
 203         u8  *Miccode,
 204         u8   priority);
 205
 206 void r8712_secmicsetkey(struct mic_data *pmicdata, u8 *key);
 207 void r8712_secmicappend(struct mic_data *pmicdata, u8 *src, u32 nBytes);
 208 void r8712_secgetmic(struct mic_data *pmicdata, u8 *dst);
 209 u32 r8712_aes_encrypt(struct _adapter *padapter, u8 *pxmitframe);
 210 u32 r8712_tkip_encrypt(struct _adapter *padapter, u8 *pxmitframe);
 211 void r8712_wep_encrypt(struct _adapter *padapter, u8  *pxmitframe);
 212 u32 r8712_aes_decrypt(struct _adapter *padapter, u8  *precvframe);
 213 u32 r8712_tkip_decrypt(struct _adapter *padapter, u8  *precvframe);
 214 void r8712_wep_decrypt(struct _adapter *padapter, u8  *precvframe);
 215 void r8712_use_tkipkey_handler(struct timer_list *t);
 216
 217 #endif  /*__RTL871X_SECURITY_H_ */
 218