1 /****************************************************************************** 2 * 3 * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved. 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of version 2 of the GNU General Public License as 7 * published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12 * more details. 13 * 14 * You should have received a copy of the GNU General Public License along with 15 * this program; if not, write to the Free Software Foundation, Inc., 16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA 17 * 18 * Modifications for inclusion into the Linux staging tree are 19 * Copyright(c) 2010 Larry Finger. All rights reserved. 20 * 21 * Contact information: 22 * WLAN FAE <wlanfae@realtek.com> 23 * Larry Finger <Larry.Finger@lwfinger.net> 24 * 25 ******************************************************************************/ 26 #ifndef __RTL871X_SECURITY_H_ 27 #define __RTL871X_SECURITY_H_ 28 29 #include "osdep_service.h" 30 #include "drv_types.h" 31 32 #define _NO_PRIVACY_ 0x0 33 #define _WEP40_ 0x1 34 #define _TKIP_ 0x2 35 #define _TKIP_WTMIC_ 0x3 36 #define _AES_ 0x4 37 #define _WEP104_ 0x5 38 39 #define _WPA_IE_ID_ 0xdd 40 #define _WPA2_IE_ID_ 0x30 41 42 #ifndef Ndis802_11AuthModeWPA2 43 #define Ndis802_11AuthModeWPA2 (Ndis802_11AuthModeWPANone + 1) 44 #endif 45 46 #ifndef Ndis802_11AuthModeWPA2PSK 47 #define Ndis802_11AuthModeWPA2PSK (Ndis802_11AuthModeWPANone + 2) 48 #endif 49 50 union pn48 { 51 u64 val; 52 #if defined(__BIG_ENDIAN) 53 struct { 54 u8 TSC7; 55 u8 TSC6; 56 u8 TSC5; 57 u8 TSC4; 58 u8 TSC3; 59 u8 TSC2; 60 u8 TSC1; 61 u8 TSC0; 62 } _byte_; 63 #else 64 struct { 65 u8 TSC0; 66 u8 TSC1; 67 u8 TSC2; 68 u8 TSC3; 69 u8 TSC4; 70 u8 TSC5; 71 u8 TSC6; 72 u8 TSC7; 73 } _byte_; 74 #endif 75 }; 76 77 union Keytype { 78 u8 skey[16]; 79 u32 lkey[4]; 80 }; 81 82 struct RT_PMKID_LIST { 83 u8 bUsed; 84 u8 Bssid[6]; 85 u8 PMKID[16]; 86 u8 SsidBuf[33]; 87 u8 *ssid_octet; 88 u16 ssid_length; 89 }; 90 91 struct security_priv { 92 u32 AuthAlgrthm; /* 802.11 auth, could be open, shared, 93 * 8021x and authswitch */ 94 u32 PrivacyAlgrthm; /* This specify the privacy for shared 95 * auth. algorithm. */ 96 u32 PrivacyKeyIndex; /* this is only valid for legendary 97 * wep, 0~3 for key id. */ 98 union Keytype DefKey[4]; /* this is only valid for def. key */ 99 u32 DefKeylen[4]; 100 u32 XGrpPrivacy; /* This specify the privacy algthm. 101 * used for Grp key */ 102 u32 XGrpKeyid; /* key id used for Grp Key */ 103 union Keytype XGrpKey[2]; /* 802.1x Group Key, for 104 * inx0 and inx1 */ 105 union Keytype XGrptxmickey[2]; 106 union Keytype XGrprxmickey[2]; 107 union pn48 Grptxpn; /* PN48 used for Grp Key xmit. */ 108 union pn48 Grprxpn; /* PN48 used for Grp Key recv. */ 109 u8 wps_hw_pbc_pressed;/*for hw pbc pressed*/ 110 u8 wps_phase;/*for wps*/ 111 u8 wps_ie[MAX_WPA_IE_LEN<<2]; 112 int wps_ie_len; 113 u8 binstallGrpkey; 114 u8 busetkipkey; 115 struct timer_list tkip_timer; 116 u8 bcheck_grpkey; 117 u8 bgrpkey_handshake; 118 s32 sw_encrypt; /* from registry_priv */ 119 s32 sw_decrypt; /* from registry_priv */ 120 s32 hw_decrypted; /* if the rx packets is hw_decrypted==false, 121 * it means the hw has not been ready. */ 122 u32 ndisauthtype; /* keeps the auth_type & enc_status from upper 123 * layer ioctl(wpa_supplicant or wzc) */ 124 u32 ndisencryptstatus; 125 struct wlan_bssid_ex sec_bss; /* for joinbss (h2c buffer) usage */ 126 struct NDIS_802_11_WEP ndiswep; 127 u8 assoc_info[600]; 128 u8 szofcapability[256]; /* for wpa2 usage */ 129 u8 oidassociation[512]; /* for wpa/wpa2 usage */ 130 u8 authenticator_ie[256]; /* store ap security information element */ 131 u8 supplicant_ie[256]; /* store sta security information element */ 132 /* for tkip countermeasure */ 133 u32 last_mic_err_time; 134 u8 btkip_countermeasure; 135 u8 btkip_wait_report; 136 u32 btkip_countermeasure_time; 137 /*------------------------------------------------------------------- 138 * For WPA2 Pre-Authentication. 139 *------------------------------------------------------------------ */ 140 struct RT_PMKID_LIST PMKIDList[NUM_PMKID_CACHE]; 141 u8 PMKIDIndex; 142 }; 143 144 #define GET_ENCRY_ALGO(psecuritypriv, psta, encry_algo, bmcst) \ 145 do { \ 146 switch (psecuritypriv->AuthAlgrthm) { \ 147 case 0: \ 148 case 1: \ 149 case 3: \ 150 encry_algo = (u8)psecuritypriv->PrivacyAlgrthm; \ 151 break; \ 152 case 2: \ 153 if (bmcst) \ 154 encry_algo = (u8)psecuritypriv->XGrpPrivacy; \ 155 else \ 156 encry_algo = (u8)psta->XPrivacy; \ 157 break; \ 158 } \ 159 } while (0) 160 #define SET_ICE_IV_LEN(iv_len, icv_len, encrypt)\ 161 do {\ 162 switch (encrypt) { \ 163 case _WEP40_: \ 164 case _WEP104_: \ 165 iv_len = 4; \ 166 icv_len = 4; \ 167 break; \ 168 case _TKIP_: \ 169 iv_len = 8; \ 170 icv_len = 4; \ 171 break; \ 172 case _AES_: \ 173 iv_len = 8; \ 174 icv_len = 8; \ 175 break; \ 176 default: \ 177 iv_len = 0; \ 178 icv_len = 0; \ 179 break; \ 180 } \ 181 } while (0) 182 #define GET_TKIP_PN(iv, txpn) \ 183 do {\ 184 txpn._byte_.TSC0 = iv[2];\ 185 txpn._byte_.TSC1 = iv[0];\ 186 txpn._byte_.TSC2 = iv[4];\ 187 txpn._byte_.TSC3 = iv[5];\ 188 txpn._byte_.TSC4 = iv[6];\ 189 txpn._byte_.TSC5 = iv[7];\ 190 } while (0) 191 192 #define ROL32(A, n) (((A) << (n)) | (((A)>>(32-(n))) & ((1UL << (n)) - 1))) 193 #define ROR32(A, n) ROL32((A), 32 - (n)) 194 195 struct mic_data { 196 u32 K0, K1; /* Key */ 197 u32 L, R; /* Current state */ 198 u32 M; /* Message accumulator (single word) */ 199 u32 nBytesInM; /* # bytes in M */ 200 }; 201 202 void seccalctkipmic( 203 u8 *key, 204 u8 *header, 205 u8 *data, 206 u32 data_len, 207 u8 *Miccode, 208 u8 priority); 209 210 void r8712_secmicsetkey(struct mic_data *pmicdata, u8 *key); 211 void r8712_secmicappend(struct mic_data *pmicdata, u8 *src, u32 nBytes); 212 void r8712_secgetmic(struct mic_data *pmicdata, u8 *dst); 213 u32 r8712_aes_encrypt(struct _adapter *padapter, u8 *pxmitframe); 214 u32 r8712_tkip_encrypt(struct _adapter *padapter, u8 *pxmitframe); 215 void r8712_wep_encrypt(struct _adapter *padapter, u8 *pxmitframe); 216 u32 r8712_aes_decrypt(struct _adapter *padapter, u8 *precvframe); 217 u32 r8712_tkip_decrypt(struct _adapter *padapter, u8 *precvframe); 218 void r8712_wep_decrypt(struct _adapter *padapter, u8 *precvframe); 219 void r8712_use_tkipkey_handler(void *FunctionContext); 220 221 #endif /*__RTL871X_SECURITY_H_ */ 222 223