drivers/staging/rtl8712/rtl871x_security.h

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