1 /******************************************************************************
3 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
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.
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
14 ******************************************************************************/
15 #ifndef __RTW_SECURITY_H_
16 #define __RTW_SECURITY_H_
18 #include <osdep_service.h>
19 #include <drv_types.h>
20 #include <net/lib80211.h>
23 #define is_wep_enc(alg) (alg == WLAN_CIPHER_SUITE_WEP40 || \
24 alg == WLAN_CIPHER_SUITE_WEP104)
26 #define SHA256_MAC_LEN 32
27 #define AES_BLOCK_SIZE 16
28 #define AES_PRIV_SIZE (4 * 44)
30 enum ENCRYP_PROTOCOL {
31 ENCRYP_PROTOCOL_OPENSYS, /* open system */
32 ENCRYP_PROTOCOL_WEP, /* WEP */
33 ENCRYP_PROTOCOL_WPA, /* WPA */
34 ENCRYP_PROTOCOL_WPA2, /* WPA2 */
38 #ifndef Ndis802_11AuthModeWPA2
39 #define Ndis802_11AuthModeWPA2 (Ndis802_11AuthModeWPANone + 1)
42 #ifndef Ndis802_11AuthModeWPA2PSK
43 #define Ndis802_11AuthModeWPA2PSK (Ndis802_11AuthModeWPANone + 2)
49 #ifdef __LITTLE_ENDIAN
62 #elif defined(__BIG_ENDIAN)
75 #error Need BIG or LITTLE endian
87 u8 key[WLAN_KEY_LEN_WEP104 + 1]; /* 14 */
91 struct rt_pmkid_list {
100 struct security_priv {
101 u32 dot11AuthAlgrthm; /* 802.11 auth, could be open, shared,
102 * 8021x and authswitch */
103 u32 dot11PrivacyAlgrthm; /* This specifies the privacy for
104 * shared auth. algorithm.
107 u32 dot11PrivacyKeyIndex; /* this is only valid for legendary
108 * wep, 0~3 for key id. (tx key index)
110 struct rtw_wep_key wep_key[NUM_WEP_KEYS];
112 u32 dot118021XGrpPrivacy; /* specify the privacy algthm.
115 u32 dot118021XGrpKeyid; /* key id used for Grp Key
118 union Keytype dot118021XGrpKey[4];/* 802.1x Grp Key, inx0 and inx1 */
119 union Keytype dot118021XGrptxmickey[4];
120 union Keytype dot118021XGrprxmickey[4];
121 union pn48 dot11Grptxpn; /* PN48 used for Grp Key xmit.*/
122 union pn48 dot11Grprxpn; /* PN48 used for Grp Key recv.*/
124 #ifdef CONFIG_8723AU_AP_MODE
125 /* extend security capabilities for AP_MODE */
126 unsigned int dot8021xalg;/* 0:disable, 1:psk, 2:802.1x */
127 unsigned int wpa_psk;/* 0:disable, bit(0): WPA, bit(1):WPA2 */
128 unsigned int wpa_group_cipher;
129 unsigned int wpa2_group_cipher;
130 unsigned int wpa_pairwise_cipher;
131 unsigned int wpa2_pairwise_cipher;
134 u8 wps_ie[MAX_WPS_IE_LEN];/* added in assoc req */
136 unsigned int binstallGrpkey:1;
137 unsigned int busetkipkey:1;
138 unsigned int bcheck_grpkey:1;
139 unsigned int hw_decrypted:1;
140 u32 ndisauthtype; /* enum ndis_802_11_auth_mode */
141 u32 ndisencryptstatus; /* NDIS_802_11_ENCRYPTION_STATUS */
142 struct wlan_bssid_ex sec_bss; /* for joinbss (h2c buffer) usage */
144 u8 szofcapability[256]; /* for wpa2 usage */
145 u8 oidassociation[512]; /* for wpa/wpa2 usage */
146 u8 supplicant_ie[256]; /* store sta security information element */
148 /* for tkip countermeasure */
149 unsigned long last_mic_err_time;
150 u8 btkip_countermeasure;
151 u8 btkip_wait_report;
152 unsigned long btkip_countermeasure_time;
154 /* For WPA2 Pre-Authentication. */
155 struct rt_pmkid_list PMKIDList[NUM_PMKID_CACHE];
157 u8 bWepDefaultKeyIdxSet;
160 struct sha256_state {
162 u32 state[8], curlen;
166 #define GET_ENCRY_ALGO(psecuritypriv, psta, encry_algo, bmcst)\
168 switch (psecuritypriv->dot11AuthAlgrthm) {\
169 case dot11AuthAlgrthm_Open:\
170 case dot11AuthAlgrthm_Shared:\
171 case dot11AuthAlgrthm_Auto:\
172 encry_algo = psecuritypriv->dot11PrivacyAlgrthm;\
174 case dot11AuthAlgrthm_8021X:\
176 encry_algo = psecuritypriv->dot118021XGrpPrivacy;\
178 encry_algo = psta->dot118021XPrivacy;\
183 #define GET_TKIP_PN(iv, dot11txpn)\
185 dot11txpn._byte_.TSC0 = iv[2];\
186 dot11txpn._byte_.TSC1 = iv[0];\
187 dot11txpn._byte_.TSC2 = iv[4];\
188 dot11txpn._byte_.TSC3 = iv[5];\
189 dot11txpn._byte_.TSC4 = iv[6];\
190 dot11txpn._byte_.TSC5 = iv[7];\
193 #define ROL32(A, n) (((A) << (n)) | (((A)>>(32-(n))) & ((1UL << (n)) - 1)))
194 #define ROR32(A, n) ROL32((A), 32-(n))
197 u32 K0, K1; /* Key */
198 u32 L, R; /* Current state */
199 u32 M; /* Message accumulator (single word) */
200 u32 nBytesInM; /* # bytes in M */
203 extern const u32 Te0[256];
204 extern const u32 Te1[256];
205 extern const u32 Te2[256];
206 extern const u32 Te3[256];
207 extern const u32 Te4[256];
208 extern const u32 Td0[256];
209 extern const u32 Td1[256];
210 extern const u32 Td2[256];
211 extern const u32 Td3[256];
212 extern const u32 Td4[256];
213 extern const u32 rcon[10];
214 extern const u8 Td4s[256];
215 extern const u8 rcons[10];
217 #define RCON(i) (rcons[(i)] << 24)
219 static inline u32 rotr(u32 val, int bits)
221 return (val >> bits) | (val << (32 - bits));
224 #define TE0(i) Te0[((i) >> 24) & 0xff]
225 #define TE1(i) rotr(Te0[((i) >> 16) & 0xff], 8)
226 #define TE2(i) rotr(Te0[((i) >> 8) & 0xff], 16)
227 #define TE3(i) rotr(Te0[(i) & 0xff], 24)
228 #define TE41(i) ((Te0[((i) >> 24) & 0xff] << 8) & 0xff000000)
229 #define TE42(i) (Te0[((i) >> 16) & 0xff] & 0x00ff0000)
230 #define TE43(i) (Te0[((i) >> 8) & 0xff] & 0x0000ff00)
231 #define TE44(i) ((Te0[(i) & 0xff] >> 8) & 0x000000ff)
232 #define TE421(i) ((Te0[((i) >> 16) & 0xff] << 8) & 0xff000000)
233 #define TE432(i) (Te0[((i) >> 8) & 0xff] & 0x00ff0000)
234 #define TE443(i) (Te0[(i) & 0xff] & 0x0000ff00)
235 #define TE414(i) ((Te0[((i) >> 24) & 0xff] >> 8) & 0x000000ff)
236 #define TE4(i) ((Te0[(i)] >> 8) & 0x000000ff)
238 #define TD0(i) Td0[((i) >> 24) & 0xff]
239 #define TD1(i) rotr(Td0[((i) >> 16) & 0xff], 8)
240 #define TD2(i) rotr(Td0[((i) >> 8) & 0xff], 16)
241 #define TD3(i) rotr(Td0[(i) & 0xff], 24)
242 #define TD41(i) (Td4s[((i) >> 24) & 0xff] << 24)
243 #define TD42(i) (Td4s[((i) >> 16) & 0xff] << 16)
244 #define TD43(i) (Td4s[((i) >> 8) & 0xff] << 8)
245 #define TD44(i) (Td4s[(i) & 0xff])
246 #define TD0_(i) Td0[(i) & 0xff]
247 #define TD1_(i) rotr(Td0[(i) & 0xff], 8)
248 #define TD2_(i) rotr(Td0[(i) & 0xff], 16)
249 #define TD3_(i) rotr(Td0[(i) & 0xff], 24)
251 #define GETU32(pt) (((u32)(pt)[0] << 24) ^ ((u32)(pt)[1] << 16) ^ \
252 ((u32)(pt)[2] << 8) ^ ((u32)(pt)[3]))
254 #define PUTU32(ct, st) { \
255 (ct)[0] = (u8)((st) >> 24); (ct)[1] = (u8)((st) >> 16); \
256 (ct)[2] = (u8)((st) >> 8); (ct)[3] = (u8)(st); }
258 #define WPA_GET_BE32(a) ((((u32) (a)[0]) << 24) | (((u32) (a)[1]) << 16) | \
259 (((u32) (a)[2]) << 8) | ((u32) (a)[3]))
261 #define WPA_PUT_LE16(a, val) \
263 (a)[1] = ((u16) (val)) >> 8; \
264 (a)[0] = ((u16) (val)) & 0xff; \
267 #define WPA_PUT_BE32(a, val) \
269 (a)[0] = (u8) ((((u32) (val)) >> 24) & 0xff); \
270 (a)[1] = (u8) ((((u32) (val)) >> 16) & 0xff); \
271 (a)[2] = (u8) ((((u32) (val)) >> 8) & 0xff); \
272 (a)[3] = (u8) (((u32) (val)) & 0xff); \
275 #define WPA_PUT_BE64(a, val) \
277 (a)[0] = (u8) (((u64) (val)) >> 56); \
278 (a)[1] = (u8) (((u64) (val)) >> 48); \
279 (a)[2] = (u8) (((u64) (val)) >> 40); \
280 (a)[3] = (u8) (((u64) (val)) >> 32); \
281 (a)[4] = (u8) (((u64) (val)) >> 24); \
282 (a)[5] = (u8) (((u64) (val)) >> 16); \
283 (a)[6] = (u8) (((u64) (val)) >> 8); \
284 (a)[7] = (u8) (((u64) (val)) & 0xff); \
287 /* ===== start - public domain SHA256 implementation ===== */
289 /* This is based on SHA256 implementation in LibTomCrypt that was released into
290 * public domain by Tom St Denis. */
293 static const unsigned long K[64] = {
294 0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL, 0x3956c25bUL,
295 0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL, 0xd807aa98UL, 0x12835b01UL,
296 0x243185beUL, 0x550c7dc3UL, 0x72be5d74UL, 0x80deb1feUL, 0x9bdc06a7UL,
297 0xc19bf174UL, 0xe49b69c1UL, 0xefbe4786UL, 0x0fc19dc6UL, 0x240ca1ccUL,
298 0x2de92c6fUL, 0x4a7484aaUL, 0x5cb0a9dcUL, 0x76f988daUL, 0x983e5152UL,
299 0xa831c66dUL, 0xb00327c8UL, 0xbf597fc7UL, 0xc6e00bf3UL, 0xd5a79147UL,
300 0x06ca6351UL, 0x14292967UL, 0x27b70a85UL, 0x2e1b2138UL, 0x4d2c6dfcUL,
301 0x53380d13UL, 0x650a7354UL, 0x766a0abbUL, 0x81c2c92eUL, 0x92722c85UL,
302 0xa2bfe8a1UL, 0xa81a664bUL, 0xc24b8b70UL, 0xc76c51a3UL, 0xd192e819UL,
303 0xd6990624UL, 0xf40e3585UL, 0x106aa070UL, 0x19a4c116UL, 0x1e376c08UL,
304 0x2748774cUL, 0x34b0bcb5UL, 0x391c0cb3UL, 0x4ed8aa4aUL, 0x5b9cca4fUL,
305 0x682e6ff3UL, 0x748f82eeUL, 0x78a5636fUL, 0x84c87814UL, 0x8cc70208UL,
306 0x90befffaUL, 0xa4506cebUL, 0xbef9a3f7UL, 0xc67178f2UL
309 void rtw_secmicsetkey23a(struct mic_data *pmicdata, u8 *key);
310 void rtw_secmicappend23abyte23a(struct mic_data *pmicdata, u8 b);
311 void rtw_secmicappend23a(struct mic_data *pmicdata, u8 *src, u32 nbBytes);
312 void rtw_secgetmic23a(struct mic_data *pmicdata, u8 *dst);
314 void rtw_seccalctkipmic23a(u8 *key, u8 *header, u8 *data, u32 data_len,
315 u8 *Miccode, u8 priorityi);
317 int rtw_aes_encrypt23a(struct rtw_adapter *padapter,
318 struct xmit_frame *pxmitframe);
319 int rtw_tkip_encrypt23a(struct rtw_adapter *padapter,
320 struct xmit_frame *pxmitframe);
321 void rtw_wep_encrypt23a(struct rtw_adapter *padapter,
322 struct xmit_frame *pxmitframe);
323 int rtw_aes_decrypt23a(struct rtw_adapter *padapter,
324 struct recv_frame *precvframe);
325 int rtw_tkip_decrypt23a(struct rtw_adapter *padapter,
326 struct recv_frame *precvframe);
327 void rtw_wep_decrypt23a(struct rtw_adapter *padapter, struct recv_frame *precvframe);
329 void rtw_use_tkipkey_handler23a(void *FunctionContext);
331 #endif /* __RTL871X_SECURITY_H_ */