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 * 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
19 ******************************************************************************/
20 #ifndef __RTW_SECURITY_H_
21 #define __RTW_SECURITY_H_
24 #define _NO_PRIVACY_ 0x0
27 #define _TKIP_WTMIC_ 0x3
30 #define _WEP_WPA_MIXED_ 0x07 // WEP + WPA
32 #ifdef CONFIG_IEEE80211W
34 #endif //CONFIG_IEEE80211W
35 #define is_wep_enc(alg) (((alg) == _WEP40_) || ((alg) == _WEP104_))
37 const char *security_type_str(u8 value);
39 #define _WPA_IE_ID_ 0xdd
40 #define _WPA2_IE_ID_ 0x30
42 #define SHA256_MAC_LEN 32
43 #define AES_BLOCK_SIZE 16
44 #define AES_PRIV_SIZE (4 * 44)
46 #define RTW_KEK_LEN 16
47 #define RTW_KCK_LEN 16
48 #define RTW_REPLAY_CTR_LEN 8
51 ENCRYP_PROTOCOL_OPENSYS, //open system
52 ENCRYP_PROTOCOL_WEP, //WEP
53 ENCRYP_PROTOCOL_WPA, //WPA
54 ENCRYP_PROTOCOL_WPA2, //WPA2
55 ENCRYP_PROTOCOL_WAPI, //WAPI: Not support in this version
60 #ifndef Ndis802_11AuthModeWPA2
61 #define Ndis802_11AuthModeWPA2 (Ndis802_11AuthModeWPANone + 1)
64 #ifndef Ndis802_11AuthModeWPA2PSK
65 #define Ndis802_11AuthModeWPA2PSK (Ndis802_11AuthModeWPANone + 2)
72 #ifdef CONFIG_LITTLE_ENDIAN
85 #elif defined(CONFIG_BIG_ENDIAN)
108 typedef struct _RT_PMKID_LIST
116 } RT_PMKID_LIST, *PRT_PMKID_LIST;
121 u32 dot11AuthAlgrthm; // 802.11 auth, could be open, shared, 8021x and authswitch
122 u32 dot11PrivacyAlgrthm; // This specify the privacy for shared auth. algorithm.
125 u32 dot11PrivacyKeyIndex; // this is only valid for legendary wep, 0~3 for key id. (tx key index)
126 union Keytype dot11DefKey[4]; // this is only valid for def. key
127 u32 dot11DefKeylen[4];
128 u8 key_mask; /* use to restore wep key after hal_init */
130 u32 dot118021XGrpPrivacy; // This specify the privacy algthm. used for Grp key
131 u32 dot118021XGrpKeyid; // key id used for Grp Key ( tx key index)
132 union Keytype dot118021XGrpKey[4]; // 802.1x Group Key, for inx0 and inx1
133 union Keytype dot118021XGrptxmickey[4];
134 union Keytype dot118021XGrprxmickey[4];
135 union pn48 dot11Grptxpn; // PN48 used for Grp Key xmit.
136 union pn48 dot11Grprxpn; // PN48 used for Grp Key recv.
137 #ifdef CONFIG_IEEE80211W
138 u32 dot11wBIPKeyid; // key id used for BIP Key ( tx key index)
139 union Keytype dot11wBIPKey[6]; // BIP Key, for index4 and index5
140 union pn48 dot11wBIPtxpn; // PN48 used for Grp Key xmit.
141 union pn48 dot11wBIPrxpn; // PN48 used for Grp Key recv.
142 #endif //CONFIG_IEEE80211W
143 #ifdef CONFIG_AP_MODE
144 //extend security capabilities for AP_MODE
145 unsigned int dot8021xalg;//0:disable, 1:psk, 2:802.1x
146 unsigned int wpa_psk;//0:disable, bit(0): WPA, bit(1):WPA2
147 unsigned int wpa_group_cipher;
148 unsigned int wpa2_group_cipher;
149 unsigned int wpa_pairwise_cipher;
150 unsigned int wpa2_pairwise_cipher;
153 u8 wps_ie[MAX_WPS_IE_LEN];//added in assoc req
160 #endif //CONFIG_GTK_OL
161 #ifdef CONFIG_IEEE80211W
163 #endif //CONFIG_IEEE80211W
167 u8 bgrpkey_handshake;
169 //u8 packet_cnt;//unused, removed
171 s32 sw_encrypt;//from registry_priv
172 s32 sw_decrypt;//from registry_priv
174 s32 hw_decrypted;//if the rx packets is hw_decrypted==_FALSE, it means the hw has not been ready.
177 //keeps the auth_type & enc_status from upper layer ioctl(wpa_supplicant or wzc)
178 u32 ndisauthtype; // NDIS_802_11_AUTHENTICATION_MODE
179 u32 ndisencryptstatus; // NDIS_802_11_ENCRYPTION_STATUS
181 WLAN_BSSID_EX sec_bss; //for joinbss (h2c buffer) usage
183 NDIS_802_11_WEP ndiswep;
184 #ifdef PLATFORM_WINDOWS
185 u8 KeyMaterial[16];// variable length depending on above field.
189 u8 szofcapability[256]; //for wpa2 usage
190 u8 oidassociation[512]; //for wpa/wpa2 usage
191 u8 authenticator_ie[256]; //store ap security information element
192 u8 supplicant_ie[256]; //store sta security information element
195 //for tkip countermeasure
196 u32 last_mic_err_time;
197 u8 btkip_countermeasure;
198 u8 btkip_wait_report;
199 u32 btkip_countermeasure_time;
201 //---------------------------------------------------------------------------
202 // For WPA2 Pre-Authentication.
203 //---------------------------------------------------------------------------
204 //u8 RegEnablePreAuth; // Default value: Pre-Authentication enabled or not, from registry "EnablePreAuth". Added by Annie, 2005-11-01.
205 //u8 EnablePreAuthentication; // Current Value: Pre-Authentication enabled or not.
206 RT_PMKID_LIST PMKIDList[NUM_PMKID_CACHE]; // Renamed from PreAuthKey[NUM_PRE_AUTH_KEY]. Annie, 2006-10-13.
208 //u32 PMKIDCount; // Added by Annie, 2006-10-13.
209 //u8 szCapability[256]; // For WPA2-PSK using zero-config, by Annie, 2005-09-20.
211 u8 bWepDefaultKeyIdxSet;
213 #define DBG_SW_SEC_CNT
214 #ifdef DBG_SW_SEC_CNT
215 u64 wep_sw_enc_cnt_bc;
216 u64 wep_sw_enc_cnt_mc;
217 u64 wep_sw_enc_cnt_uc;
218 u64 wep_sw_dec_cnt_bc;
219 u64 wep_sw_dec_cnt_mc;
220 u64 wep_sw_dec_cnt_uc;
222 u64 tkip_sw_enc_cnt_bc;
223 u64 tkip_sw_enc_cnt_mc;
224 u64 tkip_sw_enc_cnt_uc;
225 u64 tkip_sw_dec_cnt_bc;
226 u64 tkip_sw_dec_cnt_mc;
227 u64 tkip_sw_dec_cnt_uc;
229 u64 aes_sw_enc_cnt_bc;
230 u64 aes_sw_enc_cnt_mc;
231 u64 aes_sw_enc_cnt_uc;
232 u64 aes_sw_dec_cnt_bc;
233 u64 aes_sw_dec_cnt_mc;
234 u64 aes_sw_dec_cnt_uc;
235 #endif /* DBG_SW_SEC_CNT */
238 struct sha256_state {
240 u32 state[8], curlen;
244 #define GET_ENCRY_ALGO(psecuritypriv, psta, encry_algo, bmcst)\
246 switch(psecuritypriv->dot11AuthAlgrthm)\
248 case dot11AuthAlgrthm_Open:\
249 case dot11AuthAlgrthm_Shared:\
250 case dot11AuthAlgrthm_Auto:\
251 encry_algo = (u8)psecuritypriv->dot11PrivacyAlgrthm;\
253 case dot11AuthAlgrthm_8021X:\
255 encry_algo = (u8)psecuritypriv->dot118021XGrpPrivacy;\
257 encry_algo =(u8) psta->dot118021XPrivacy;\
259 case dot11AuthAlgrthm_WAPI:\
260 encry_algo = (u8)psecuritypriv->dot11PrivacyAlgrthm;\
265 #define _AES_IV_LEN_ 8
267 #define SET_ICE_IV_LEN( iv_len, icv_len, encrypt)\
296 #define GET_TKIP_PN(iv,dot11txpn)\
298 dot11txpn._byte_.TSC0=iv[2];\
299 dot11txpn._byte_.TSC1=iv[0];\
300 dot11txpn._byte_.TSC2=iv[4];\
301 dot11txpn._byte_.TSC3=iv[5];\
302 dot11txpn._byte_.TSC4=iv[6];\
303 dot11txpn._byte_.TSC5=iv[7];\
307 #define ROL32( A, n ) ( ((A) << (n)) | ( ((A)>>(32-(n))) & ( (1UL << (n)) - 1 ) ) )
308 #define ROR32( A, n ) ROL32( (A), 32-(n) )
313 u32 L, R; // Current state
314 u32 M; // Message accumulator (single word)
315 u32 nBytesInM; // # bytes in M
318 extern const u32 Te0[256];
319 extern const u32 Te1[256];
320 extern const u32 Te2[256];
321 extern const u32 Te3[256];
322 extern const u32 Te4[256];
323 extern const u32 Td0[256];
324 extern const u32 Td1[256];
325 extern const u32 Td2[256];
326 extern const u32 Td3[256];
327 extern const u32 Td4[256];
328 extern const u32 rcon[10];
329 extern const u8 Td4s[256];
330 extern const u8 rcons[10];
332 #define RCON(i) (rcons[(i)] << 24)
334 static inline u32 rotr(u32 val, int bits)
336 return (val >> bits) | (val << (32 - bits));
339 #define TE0(i) Te0[((i) >> 24) & 0xff]
340 #define TE1(i) rotr(Te0[((i) >> 16) & 0xff], 8)
341 #define TE2(i) rotr(Te0[((i) >> 8) & 0xff], 16)
342 #define TE3(i) rotr(Te0[(i) & 0xff], 24)
343 #define TE41(i) ((Te0[((i) >> 24) & 0xff] << 8) & 0xff000000)
344 #define TE42(i) (Te0[((i) >> 16) & 0xff] & 0x00ff0000)
345 #define TE43(i) (Te0[((i) >> 8) & 0xff] & 0x0000ff00)
346 #define TE44(i) ((Te0[(i) & 0xff] >> 8) & 0x000000ff)
347 #define TE421(i) ((Te0[((i) >> 16) & 0xff] << 8) & 0xff000000)
348 #define TE432(i) (Te0[((i) >> 8) & 0xff] & 0x00ff0000)
349 #define TE443(i) (Te0[(i) & 0xff] & 0x0000ff00)
350 #define TE414(i) ((Te0[((i) >> 24) & 0xff] >> 8) & 0x000000ff)
351 #define TE4(i) ((Te0[(i)] >> 8) & 0x000000ff)
353 #define TD0(i) Td0[((i) >> 24) & 0xff]
354 #define TD1(i) rotr(Td0[((i) >> 16) & 0xff], 8)
355 #define TD2(i) rotr(Td0[((i) >> 8) & 0xff], 16)
356 #define TD3(i) rotr(Td0[(i) & 0xff], 24)
357 #define TD41(i) (Td4s[((i) >> 24) & 0xff] << 24)
358 #define TD42(i) (Td4s[((i) >> 16) & 0xff] << 16)
359 #define TD43(i) (Td4s[((i) >> 8) & 0xff] << 8)
360 #define TD44(i) (Td4s[(i) & 0xff])
361 #define TD0_(i) Td0[(i) & 0xff]
362 #define TD1_(i) rotr(Td0[(i) & 0xff], 8)
363 #define TD2_(i) rotr(Td0[(i) & 0xff], 16)
364 #define TD3_(i) rotr(Td0[(i) & 0xff], 24)
366 #define GETU32(pt) (((u32)(pt)[0] << 24) ^ ((u32)(pt)[1] << 16) ^ \
367 ((u32)(pt)[2] << 8) ^ ((u32)(pt)[3]))
369 #define PUTU32(ct, st) { \
370 (ct)[0] = (u8)((st) >> 24); (ct)[1] = (u8)((st) >> 16); \
371 (ct)[2] = (u8)((st) >> 8); (ct)[3] = (u8)(st); }
373 #define WPA_GET_BE32(a) ((((u32) (a)[0]) << 24) | (((u32) (a)[1]) << 16) | \
374 (((u32) (a)[2]) << 8) | ((u32) (a)[3]))
376 #define WPA_PUT_LE16(a, val) \
378 (a)[1] = ((u16) (val)) >> 8; \
379 (a)[0] = ((u16) (val)) & 0xff; \
382 #define WPA_PUT_BE32(a, val) \
384 (a)[0] = (u8) ((((u32) (val)) >> 24) & 0xff); \
385 (a)[1] = (u8) ((((u32) (val)) >> 16) & 0xff); \
386 (a)[2] = (u8) ((((u32) (val)) >> 8) & 0xff); \
387 (a)[3] = (u8) (((u32) (val)) & 0xff); \
390 #define WPA_PUT_BE64(a, val) \
392 (a)[0] = (u8) (((u64) (val)) >> 56); \
393 (a)[1] = (u8) (((u64) (val)) >> 48); \
394 (a)[2] = (u8) (((u64) (val)) >> 40); \
395 (a)[3] = (u8) (((u64) (val)) >> 32); \
396 (a)[4] = (u8) (((u64) (val)) >> 24); \
397 (a)[5] = (u8) (((u64) (val)) >> 16); \
398 (a)[6] = (u8) (((u64) (val)) >> 8); \
399 (a)[7] = (u8) (((u64) (val)) & 0xff); \
402 /* ===== start - public domain SHA256 implementation ===== */
404 /* This is based on SHA256 implementation in LibTomCrypt that was released into
405 * public domain by Tom St Denis. */
408 static const unsigned long K[64] = {
409 0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL, 0x3956c25bUL,
410 0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL, 0xd807aa98UL, 0x12835b01UL,
411 0x243185beUL, 0x550c7dc3UL, 0x72be5d74UL, 0x80deb1feUL, 0x9bdc06a7UL,
412 0xc19bf174UL, 0xe49b69c1UL, 0xefbe4786UL, 0x0fc19dc6UL, 0x240ca1ccUL,
413 0x2de92c6fUL, 0x4a7484aaUL, 0x5cb0a9dcUL, 0x76f988daUL, 0x983e5152UL,
414 0xa831c66dUL, 0xb00327c8UL, 0xbf597fc7UL, 0xc6e00bf3UL, 0xd5a79147UL,
415 0x06ca6351UL, 0x14292967UL, 0x27b70a85UL, 0x2e1b2138UL, 0x4d2c6dfcUL,
416 0x53380d13UL, 0x650a7354UL, 0x766a0abbUL, 0x81c2c92eUL, 0x92722c85UL,
417 0xa2bfe8a1UL, 0xa81a664bUL, 0xc24b8b70UL, 0xc76c51a3UL, 0xd192e819UL,
418 0xd6990624UL, 0xf40e3585UL, 0x106aa070UL, 0x19a4c116UL, 0x1e376c08UL,
419 0x2748774cUL, 0x34b0bcb5UL, 0x391c0cb3UL, 0x4ed8aa4aUL, 0x5b9cca4fUL,
420 0x682e6ff3UL, 0x748f82eeUL, 0x78a5636fUL, 0x84c87814UL, 0x8cc70208UL,
421 0x90befffaUL, 0xa4506cebUL, 0xbef9a3f7UL, 0xc67178f2UL
425 /* Various logical functions */
427 ( ((((unsigned long) (x) & 0xFFFFFFFFUL) >> (unsigned long) ((y) & 31)) | \
428 ((unsigned long) (x) << (unsigned long) (32 - ((y) & 31)))) & 0xFFFFFFFFUL)
429 #define Ch(x,y,z) (z ^ (x & (y ^ z)))
430 #define Maj(x,y,z) (((x | y) & z) | (x & y))
431 #define S(x, n) RORc((x), (n))
432 #define R(x, n) (((x)&0xFFFFFFFFUL)>>(n))
433 #define Sigma0(x) (S(x, 2) ^ S(x, 13) ^ S(x, 22))
434 #define Sigma1(x) (S(x, 6) ^ S(x, 11) ^ S(x, 25))
435 #define Gamma0(x) (S(x, 7) ^ S(x, 18) ^ R(x, 3))
436 #define Gamma1(x) (S(x, 17) ^ S(x, 19) ^ R(x, 10))
438 #define MIN(x, y) (((x) < (y)) ? (x) : (y))
440 #ifdef CONFIG_IEEE80211W
441 int omac1_aes_128(u8 *key, u8 *data, size_t data_len, u8 *mac);
442 #endif //CONFIG_IEEE80211W
443 void rtw_secmicsetkey(struct mic_data *pmicdata, u8 * key );
444 void rtw_secmicappendbyte(struct mic_data *pmicdata, u8 b );
445 void rtw_secmicappend(struct mic_data *pmicdata, u8 * src, u32 nBytes );
446 void rtw_secgetmic(struct mic_data *pmicdata, u8 * dst );
448 void rtw_seccalctkipmic(
456 u32 rtw_aes_encrypt(_adapter *padapter, u8 *pxmitframe);
457 u32 rtw_tkip_encrypt(_adapter *padapter, u8 *pxmitframe);
458 void rtw_wep_encrypt(_adapter *padapter, u8 *pxmitframe);
460 u32 rtw_aes_decrypt(_adapter *padapter, u8 *precvframe);
461 u32 rtw_tkip_decrypt(_adapter *padapter, u8 *precvframe);
462 void rtw_wep_decrypt(_adapter *padapter, u8 *precvframe);
463 #ifdef CONFIG_IEEE80211W
464 u32 rtw_BIP_verify(_adapter *padapter, u8 *precvframe);
465 #endif //CONFIG_IEEE80211W
467 void wpa_tdls_generate_tpk(_adapter *padapter, PVOID sta);
468 int wpa_tdls_ftie_mic(u8 *kck, u8 trans_seq,
469 u8 *lnkid, u8 *rsnie, u8 *timeoutie, u8 *ftie,
471 int tdls_verify_mic(u8 *kck, u8 trans_seq,
472 u8 *lnkid, u8 *rsnie, u8 *timeoutie, u8 *ftie);
475 void rtw_use_tkipkey_handler(RTW_TIMER_HDL_ARGS);
477 void rtw_sec_restore_wep_key(_adapter *adapter);
478 u8 rtw_handle_tkip_countermeasure(_adapter* adapter, const char *caller);
480 #endif //__RTL871X_SECURITY_H_