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 <wlanfae@realtek.com> 11 * Larry Finger <Larry.Finger@lwfinger.net> 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 void r8712_aes_decrypt(struct _adapter *padapter, u8 *precvframe); 213 void 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_ */ 218 219
