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