wpa_common.h revision 324697
1/* 2 * WPA definitions shared between hostapd and wpa_supplicant 3 * Copyright (c) 2002-2015, Jouni Malinen <j@w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9#ifndef WPA_COMMON_H 10#define WPA_COMMON_H 11 12/* IEEE 802.11i */ 13#define PMKID_LEN 16 14#define PMK_LEN 32 15#define WPA_REPLAY_COUNTER_LEN 8 16#define WPA_NONCE_LEN 32 17#define WPA_KEY_RSC_LEN 8 18#define WPA_GMK_LEN 32 19#define WPA_GTK_MAX_LEN 32 20 21#define WPA_ALLOWED_PAIRWISE_CIPHERS \ 22(WPA_CIPHER_CCMP | WPA_CIPHER_GCMP | WPA_CIPHER_TKIP | WPA_CIPHER_NONE | \ 23WPA_CIPHER_GCMP_256 | WPA_CIPHER_CCMP_256) 24#define WPA_ALLOWED_GROUP_CIPHERS \ 25(WPA_CIPHER_CCMP | WPA_CIPHER_GCMP | WPA_CIPHER_TKIP | \ 26WPA_CIPHER_GCMP_256 | WPA_CIPHER_CCMP_256 | \ 27WPA_CIPHER_GTK_NOT_USED) 28 29#define WPA_SELECTOR_LEN 4 30#define WPA_VERSION 1 31#define RSN_SELECTOR_LEN 4 32#define RSN_VERSION 1 33 34#define RSN_SELECTOR(a, b, c, d) \ 35 ((((u32) (a)) << 24) | (((u32) (b)) << 16) | (((u32) (c)) << 8) | \ 36 (u32) (d)) 37 38#define WPA_AUTH_KEY_MGMT_NONE RSN_SELECTOR(0x00, 0x50, 0xf2, 0) 39#define WPA_AUTH_KEY_MGMT_UNSPEC_802_1X RSN_SELECTOR(0x00, 0x50, 0xf2, 1) 40#define WPA_AUTH_KEY_MGMT_PSK_OVER_802_1X RSN_SELECTOR(0x00, 0x50, 0xf2, 2) 41#define WPA_AUTH_KEY_MGMT_CCKM RSN_SELECTOR(0x00, 0x40, 0x96, 0) 42#define WPA_CIPHER_SUITE_NONE RSN_SELECTOR(0x00, 0x50, 0xf2, 0) 43#define WPA_CIPHER_SUITE_TKIP RSN_SELECTOR(0x00, 0x50, 0xf2, 2) 44#define WPA_CIPHER_SUITE_CCMP RSN_SELECTOR(0x00, 0x50, 0xf2, 4) 45 46 47#define RSN_AUTH_KEY_MGMT_UNSPEC_802_1X RSN_SELECTOR(0x00, 0x0f, 0xac, 1) 48#define RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X RSN_SELECTOR(0x00, 0x0f, 0xac, 2) 49#ifdef CONFIG_IEEE80211R 50#define RSN_AUTH_KEY_MGMT_FT_802_1X RSN_SELECTOR(0x00, 0x0f, 0xac, 3) 51#define RSN_AUTH_KEY_MGMT_FT_PSK RSN_SELECTOR(0x00, 0x0f, 0xac, 4) 52#endif /* CONFIG_IEEE80211R */ 53#define RSN_AUTH_KEY_MGMT_802_1X_SHA256 RSN_SELECTOR(0x00, 0x0f, 0xac, 5) 54#define RSN_AUTH_KEY_MGMT_PSK_SHA256 RSN_SELECTOR(0x00, 0x0f, 0xac, 6) 55#define RSN_AUTH_KEY_MGMT_TPK_HANDSHAKE RSN_SELECTOR(0x00, 0x0f, 0xac, 7) 56#define RSN_AUTH_KEY_MGMT_SAE RSN_SELECTOR(0x00, 0x0f, 0xac, 8) 57#define RSN_AUTH_KEY_MGMT_FT_SAE RSN_SELECTOR(0x00, 0x0f, 0xac, 9) 58#define RSN_AUTH_KEY_MGMT_802_1X_SUITE_B RSN_SELECTOR(0x00, 0x0f, 0xac, 11) 59#define RSN_AUTH_KEY_MGMT_802_1X_SUITE_B_192 RSN_SELECTOR(0x00, 0x0f, 0xac, 12) 60#define RSN_AUTH_KEY_MGMT_FT_802_1X_SUITE_B_192 \ 61RSN_SELECTOR(0x00, 0x0f, 0xac, 13) 62#define RSN_AUTH_KEY_MGMT_CCKM RSN_SELECTOR(0x00, 0x40, 0x96, 0x00) 63#define RSN_AUTH_KEY_MGMT_OSEN RSN_SELECTOR(0x50, 0x6f, 0x9a, 0x01) 64 65#define RSN_CIPHER_SUITE_NONE RSN_SELECTOR(0x00, 0x0f, 0xac, 0) 66#define RSN_CIPHER_SUITE_TKIP RSN_SELECTOR(0x00, 0x0f, 0xac, 2) 67#if 0 68#define RSN_CIPHER_SUITE_WRAP RSN_SELECTOR(0x00, 0x0f, 0xac, 3) 69#endif 70#define RSN_CIPHER_SUITE_CCMP RSN_SELECTOR(0x00, 0x0f, 0xac, 4) 71#define RSN_CIPHER_SUITE_AES_128_CMAC RSN_SELECTOR(0x00, 0x0f, 0xac, 6) 72#define RSN_CIPHER_SUITE_NO_GROUP_ADDRESSED RSN_SELECTOR(0x00, 0x0f, 0xac, 7) 73#define RSN_CIPHER_SUITE_GCMP RSN_SELECTOR(0x00, 0x0f, 0xac, 8) 74#define RSN_CIPHER_SUITE_GCMP_256 RSN_SELECTOR(0x00, 0x0f, 0xac, 9) 75#define RSN_CIPHER_SUITE_CCMP_256 RSN_SELECTOR(0x00, 0x0f, 0xac, 10) 76#define RSN_CIPHER_SUITE_BIP_GMAC_128 RSN_SELECTOR(0x00, 0x0f, 0xac, 11) 77#define RSN_CIPHER_SUITE_BIP_GMAC_256 RSN_SELECTOR(0x00, 0x0f, 0xac, 12) 78#define RSN_CIPHER_SUITE_BIP_CMAC_256 RSN_SELECTOR(0x00, 0x0f, 0xac, 13) 79 80/* EAPOL-Key Key Data Encapsulation 81 * GroupKey and PeerKey require encryption, otherwise, encryption is optional. 82 */ 83#define RSN_KEY_DATA_GROUPKEY RSN_SELECTOR(0x00, 0x0f, 0xac, 1) 84#if 0 85#define RSN_KEY_DATA_STAKEY RSN_SELECTOR(0x00, 0x0f, 0xac, 2) 86#endif 87#define RSN_KEY_DATA_MAC_ADDR RSN_SELECTOR(0x00, 0x0f, 0xac, 3) 88#define RSN_KEY_DATA_PMKID RSN_SELECTOR(0x00, 0x0f, 0xac, 4) 89#ifdef CONFIG_PEERKEY 90#define RSN_KEY_DATA_SMK RSN_SELECTOR(0x00, 0x0f, 0xac, 5) 91#define RSN_KEY_DATA_NONCE RSN_SELECTOR(0x00, 0x0f, 0xac, 6) 92#define RSN_KEY_DATA_LIFETIME RSN_SELECTOR(0x00, 0x0f, 0xac, 7) 93#define RSN_KEY_DATA_ERROR RSN_SELECTOR(0x00, 0x0f, 0xac, 8) 94#endif /* CONFIG_PEERKEY */ 95#ifdef CONFIG_IEEE80211W 96#define RSN_KEY_DATA_IGTK RSN_SELECTOR(0x00, 0x0f, 0xac, 9) 97#endif /* CONFIG_IEEE80211W */ 98#define RSN_KEY_DATA_KEYID RSN_SELECTOR(0x00, 0x0f, 0xac, 10) 99#define RSN_KEY_DATA_MULTIBAND_GTK RSN_SELECTOR(0x00, 0x0f, 0xac, 11) 100#define RSN_KEY_DATA_MULTIBAND_KEYID RSN_SELECTOR(0x00, 0x0f, 0xac, 12) 101 102#define WFA_KEY_DATA_IP_ADDR_REQ RSN_SELECTOR(0x50, 0x6f, 0x9a, 4) 103#define WFA_KEY_DATA_IP_ADDR_ALLOC RSN_SELECTOR(0x50, 0x6f, 0x9a, 5) 104 105#define WPA_OUI_TYPE RSN_SELECTOR(0x00, 0x50, 0xf2, 1) 106 107#define RSN_SELECTOR_PUT(a, val) WPA_PUT_BE32((u8 *) (a), (val)) 108#define RSN_SELECTOR_GET(a) WPA_GET_BE32((const u8 *) (a)) 109 110#define RSN_NUM_REPLAY_COUNTERS_1 0 111#define RSN_NUM_REPLAY_COUNTERS_2 1 112#define RSN_NUM_REPLAY_COUNTERS_4 2 113#define RSN_NUM_REPLAY_COUNTERS_16 3 114 115 116#ifdef _MSC_VER 117#pragma pack(push, 1) 118#endif /* _MSC_VER */ 119 120#ifdef CONFIG_IEEE80211W 121#define WPA_IGTK_LEN 16 122#define WPA_IGTK_MAX_LEN 32 123#endif /* CONFIG_IEEE80211W */ 124 125 126/* IEEE 802.11, 7.3.2.25.3 RSN Capabilities */ 127#define WPA_CAPABILITY_PREAUTH BIT(0) 128#define WPA_CAPABILITY_NO_PAIRWISE BIT(1) 129/* B2-B3: PTKSA Replay Counter */ 130/* B4-B5: GTKSA Replay Counter */ 131#define WPA_CAPABILITY_MFPR BIT(6) 132#define WPA_CAPABILITY_MFPC BIT(7) 133/* B8: Reserved */ 134#define WPA_CAPABILITY_PEERKEY_ENABLED BIT(9) 135#define WPA_CAPABILITY_SPP_A_MSDU_CAPABLE BIT(10) 136#define WPA_CAPABILITY_SPP_A_MSDU_REQUIRED BIT(11) 137#define WPA_CAPABILITY_PBAC BIT(12) 138#define WPA_CAPABILITY_EXT_KEY_ID_FOR_UNICAST BIT(13) 139/* B14-B15: Reserved */ 140 141 142/* IEEE 802.11r */ 143#define MOBILITY_DOMAIN_ID_LEN 2 144#define FT_R0KH_ID_MAX_LEN 48 145#define FT_R1KH_ID_LEN 6 146#define WPA_PMK_NAME_LEN 16 147 148 149/* IEEE 802.11, 8.5.2 EAPOL-Key frames */ 150#define WPA_KEY_INFO_TYPE_MASK ((u16) (BIT(0) | BIT(1) | BIT(2))) 151#define WPA_KEY_INFO_TYPE_AKM_DEFINED 0 152#define WPA_KEY_INFO_TYPE_HMAC_MD5_RC4 BIT(0) 153#define WPA_KEY_INFO_TYPE_HMAC_SHA1_AES BIT(1) 154#define WPA_KEY_INFO_TYPE_AES_128_CMAC 3 155#define WPA_KEY_INFO_KEY_TYPE BIT(3) /* 1 = Pairwise, 0 = Group key */ 156/* bit4..5 is used in WPA, but is reserved in IEEE 802.11i/RSN */ 157#define WPA_KEY_INFO_KEY_INDEX_MASK (BIT(4) | BIT(5)) 158#define WPA_KEY_INFO_KEY_INDEX_SHIFT 4 159#define WPA_KEY_INFO_INSTALL BIT(6) /* pairwise */ 160#define WPA_KEY_INFO_TXRX BIT(6) /* group */ 161#define WPA_KEY_INFO_ACK BIT(7) 162#define WPA_KEY_INFO_MIC BIT(8) 163#define WPA_KEY_INFO_SECURE BIT(9) 164#define WPA_KEY_INFO_ERROR BIT(10) 165#define WPA_KEY_INFO_REQUEST BIT(11) 166#define WPA_KEY_INFO_ENCR_KEY_DATA BIT(12) /* IEEE 802.11i/RSN only */ 167#define WPA_KEY_INFO_SMK_MESSAGE BIT(13) 168 169 170struct wpa_eapol_key { 171 u8 type; 172 /* Note: key_info, key_length, and key_data_length are unaligned */ 173 u8 key_info[2]; /* big endian */ 174 u8 key_length[2]; /* big endian */ 175 u8 replay_counter[WPA_REPLAY_COUNTER_LEN]; 176 u8 key_nonce[WPA_NONCE_LEN]; 177 u8 key_iv[16]; 178 u8 key_rsc[WPA_KEY_RSC_LEN]; 179 u8 key_id[8]; /* Reserved in IEEE 802.11i/RSN */ 180 u8 key_mic[16]; 181 u8 key_data_length[2]; /* big endian */ 182 /* followed by key_data_length bytes of key_data */ 183} STRUCT_PACKED; 184 185struct wpa_eapol_key_192 { 186 u8 type; 187 /* Note: key_info, key_length, and key_data_length are unaligned */ 188 u8 key_info[2]; /* big endian */ 189 u8 key_length[2]; /* big endian */ 190 u8 replay_counter[WPA_REPLAY_COUNTER_LEN]; 191 u8 key_nonce[WPA_NONCE_LEN]; 192 u8 key_iv[16]; 193 u8 key_rsc[WPA_KEY_RSC_LEN]; 194 u8 key_id[8]; /* Reserved in IEEE 802.11i/RSN */ 195 u8 key_mic[24]; 196 u8 key_data_length[2]; /* big endian */ 197 /* followed by key_data_length bytes of key_data */ 198} STRUCT_PACKED; 199 200#define WPA_EAPOL_KEY_MIC_MAX_LEN 24 201#define WPA_KCK_MAX_LEN 24 202#define WPA_KEK_MAX_LEN 32 203#define WPA_TK_MAX_LEN 32 204 205/** 206 * struct wpa_ptk - WPA Pairwise Transient Key 207 * IEEE Std 802.11i-2004 - 8.5.1.2 Pairwise key hierarchy 208 */ 209struct wpa_ptk { 210 u8 kck[WPA_KCK_MAX_LEN]; /* EAPOL-Key Key Confirmation Key (KCK) */ 211 u8 kek[WPA_KEK_MAX_LEN]; /* EAPOL-Key Key Encryption Key (KEK) */ 212 u8 tk[WPA_TK_MAX_LEN]; /* Temporal Key (TK) */ 213 size_t kck_len; 214 size_t kek_len; 215 size_t tk_len; 216 int installed; /* 1 if key has already been installed to driver */ 217}; 218 219struct wpa_gtk { 220 u8 gtk[WPA_GTK_MAX_LEN]; 221 size_t gtk_len; 222}; 223 224#ifdef CONFIG_IEEE80211W 225struct wpa_igtk { 226 u8 igtk[WPA_IGTK_MAX_LEN]; 227 size_t igtk_len; 228}; 229#endif /* CONFIG_IEEE80211W */ 230 231/* WPA IE version 1 232 * 00-50-f2:1 (OUI:OUI type) 233 * 0x01 0x00 (version; little endian) 234 * (all following fields are optional:) 235 * Group Suite Selector (4 octets) (default: TKIP) 236 * Pairwise Suite Count (2 octets, little endian) (default: 1) 237 * Pairwise Suite List (4 * n octets) (default: TKIP) 238 * Authenticated Key Management Suite Count (2 octets, little endian) 239 * (default: 1) 240 * Authenticated Key Management Suite List (4 * n octets) 241 * (default: unspec 802.1X) 242 * WPA Capabilities (2 octets, little endian) (default: 0) 243 */ 244 245struct wpa_ie_hdr { 246 u8 elem_id; 247 u8 len; 248 u8 oui[4]; /* 24-bit OUI followed by 8-bit OUI type */ 249 u8 version[2]; /* little endian */ 250} STRUCT_PACKED; 251 252 253/* 1/4: PMKID 254 * 2/4: RSN IE 255 * 3/4: one or two RSN IEs + GTK IE (encrypted) 256 * 4/4: empty 257 * 1/2: GTK IE (encrypted) 258 * 2/2: empty 259 */ 260 261/* RSN IE version 1 262 * 0x01 0x00 (version; little endian) 263 * (all following fields are optional:) 264 * Group Suite Selector (4 octets) (default: CCMP) 265 * Pairwise Suite Count (2 octets, little endian) (default: 1) 266 * Pairwise Suite List (4 * n octets) (default: CCMP) 267 * Authenticated Key Management Suite Count (2 octets, little endian) 268 * (default: 1) 269 * Authenticated Key Management Suite List (4 * n octets) 270 * (default: unspec 802.1X) 271 * RSN Capabilities (2 octets, little endian) (default: 0) 272 * PMKID Count (2 octets) (default: 0) 273 * PMKID List (16 * n octets) 274 * Management Group Cipher Suite (4 octets) (default: AES-128-CMAC) 275 */ 276 277struct rsn_ie_hdr { 278 u8 elem_id; /* WLAN_EID_RSN */ 279 u8 len; 280 u8 version[2]; /* little endian */ 281} STRUCT_PACKED; 282 283 284#ifdef CONFIG_PEERKEY 285enum { 286 STK_MUI_4WAY_STA_AP = 1, 287 STK_MUI_4WAY_STAT_STA = 2, 288 STK_MUI_GTK = 3, 289 STK_MUI_SMK = 4 290}; 291 292enum { 293 STK_ERR_STA_NR = 1, 294 STK_ERR_STA_NRSN = 2, 295 STK_ERR_CPHR_NS = 3, 296 STK_ERR_NO_STSL = 4 297}; 298#endif /* CONFIG_PEERKEY */ 299 300struct rsn_error_kde { 301 be16 mui; 302 be16 error_type; 303} STRUCT_PACKED; 304 305#ifdef CONFIG_IEEE80211W 306#define WPA_IGTK_KDE_PREFIX_LEN (2 + 6) 307struct wpa_igtk_kde { 308 u8 keyid[2]; 309 u8 pn[6]; 310 u8 igtk[WPA_IGTK_MAX_LEN]; 311} STRUCT_PACKED; 312#endif /* CONFIG_IEEE80211W */ 313 314struct rsn_mdie { 315 u8 mobility_domain[MOBILITY_DOMAIN_ID_LEN]; 316 u8 ft_capab; 317} STRUCT_PACKED; 318 319#define RSN_FT_CAPAB_FT_OVER_DS BIT(0) 320#define RSN_FT_CAPAB_FT_RESOURCE_REQ_SUPP BIT(1) 321 322struct rsn_ftie { 323 u8 mic_control[2]; 324 u8 mic[16]; 325 u8 anonce[WPA_NONCE_LEN]; 326 u8 snonce[WPA_NONCE_LEN]; 327 /* followed by optional parameters */ 328} STRUCT_PACKED; 329 330#define FTIE_SUBELEM_R1KH_ID 1 331#define FTIE_SUBELEM_GTK 2 332#define FTIE_SUBELEM_R0KH_ID 3 333#define FTIE_SUBELEM_IGTK 4 334 335struct rsn_rdie { 336 u8 id; 337 u8 descr_count; 338 le16 status_code; 339} STRUCT_PACKED; 340 341 342#ifdef _MSC_VER 343#pragma pack(pop) 344#endif /* _MSC_VER */ 345 346 347int wpa_eapol_key_mic(const u8 *key, size_t key_len, int akmp, int ver, 348 const u8 *buf, size_t len, u8 *mic); 349int wpa_pmk_to_ptk(const u8 *pmk, size_t pmk_len, const char *label, 350 const u8 *addr1, const u8 *addr2, 351 const u8 *nonce1, const u8 *nonce2, 352 struct wpa_ptk *ptk, int akmp, int cipher); 353 354#ifdef CONFIG_IEEE80211R 355int wpa_ft_mic(const u8 *kck, size_t kck_len, const u8 *sta_addr, 356 const u8 *ap_addr, u8 transaction_seqnum, 357 const u8 *mdie, size_t mdie_len, 358 const u8 *ftie, size_t ftie_len, 359 const u8 *rsnie, size_t rsnie_len, 360 const u8 *ric, size_t ric_len, u8 *mic); 361void wpa_derive_pmk_r0(const u8 *xxkey, size_t xxkey_len, 362 const u8 *ssid, size_t ssid_len, 363 const u8 *mdid, const u8 *r0kh_id, size_t r0kh_id_len, 364 const u8 *s0kh_id, u8 *pmk_r0, u8 *pmk_r0_name); 365void wpa_derive_pmk_r1_name(const u8 *pmk_r0_name, const u8 *r1kh_id, 366 const u8 *s1kh_id, u8 *pmk_r1_name); 367void wpa_derive_pmk_r1(const u8 *pmk_r0, const u8 *pmk_r0_name, 368 const u8 *r1kh_id, const u8 *s1kh_id, 369 u8 *pmk_r1, u8 *pmk_r1_name); 370int wpa_pmk_r1_to_ptk(const u8 *pmk_r1, const u8 *snonce, const u8 *anonce, 371 const u8 *sta_addr, const u8 *bssid, 372 const u8 *pmk_r1_name, 373 struct wpa_ptk *ptk, u8 *ptk_name, int akmp, int cipher); 374#endif /* CONFIG_IEEE80211R */ 375 376struct wpa_ie_data { 377 int proto; 378 int pairwise_cipher; 379 int group_cipher; 380 int key_mgmt; 381 int capabilities; 382 size_t num_pmkid; 383 const u8 *pmkid; 384 int mgmt_group_cipher; 385}; 386 387 388int wpa_parse_wpa_ie_rsn(const u8 *rsn_ie, size_t rsn_ie_len, 389 struct wpa_ie_data *data); 390int wpa_parse_wpa_ie_wpa(const u8 *wpa_ie, size_t wpa_ie_len, 391 struct wpa_ie_data *data); 392 393void rsn_pmkid(const u8 *pmk, size_t pmk_len, const u8 *aa, const u8 *spa, 394 u8 *pmkid, int use_sha256); 395#ifdef CONFIG_SUITEB 396int rsn_pmkid_suite_b(const u8 *kck, size_t kck_len, const u8 *aa, 397 const u8 *spa, u8 *pmkid); 398#else /* CONFIG_SUITEB */ 399static inline int rsn_pmkid_suite_b(const u8 *kck, size_t kck_len, const u8 *aa, 400 const u8 *spa, u8 *pmkid) 401{ 402 return -1; 403} 404#endif /* CONFIG_SUITEB */ 405#ifdef CONFIG_SUITEB192 406int rsn_pmkid_suite_b_192(const u8 *kck, size_t kck_len, const u8 *aa, 407 const u8 *spa, u8 *pmkid); 408#else /* CONFIG_SUITEB192 */ 409static inline int rsn_pmkid_suite_b_192(const u8 *kck, size_t kck_len, 410 const u8 *aa, const u8 *spa, u8 *pmkid) 411{ 412 return -1; 413} 414#endif /* CONFIG_SUITEB192 */ 415 416const char * wpa_cipher_txt(int cipher); 417const char * wpa_key_mgmt_txt(int key_mgmt, int proto); 418u32 wpa_akm_to_suite(int akm); 419int wpa_compare_rsn_ie(int ft_initial_assoc, 420 const u8 *ie1, size_t ie1len, 421 const u8 *ie2, size_t ie2len); 422int wpa_insert_pmkid(u8 *ies, size_t ies_len, const u8 *pmkid); 423 424struct wpa_ft_ies { 425 const u8 *mdie; 426 size_t mdie_len; 427 const u8 *ftie; 428 size_t ftie_len; 429 const u8 *r1kh_id; 430 const u8 *gtk; 431 size_t gtk_len; 432 const u8 *r0kh_id; 433 size_t r0kh_id_len; 434 const u8 *rsn; 435 size_t rsn_len; 436 const u8 *rsn_pmkid; 437 const u8 *tie; 438 size_t tie_len; 439 const u8 *igtk; 440 size_t igtk_len; 441 const u8 *ric; 442 size_t ric_len; 443}; 444 445int wpa_ft_parse_ies(const u8 *ies, size_t ies_len, struct wpa_ft_ies *parse); 446 447int wpa_cipher_key_len(int cipher); 448int wpa_cipher_rsc_len(int cipher); 449int wpa_cipher_to_alg(int cipher); 450int wpa_cipher_valid_group(int cipher); 451int wpa_cipher_valid_pairwise(int cipher); 452int wpa_cipher_valid_mgmt_group(int cipher); 453u32 wpa_cipher_to_suite(int proto, int cipher); 454int rsn_cipher_put_suites(u8 *pos, int ciphers); 455int wpa_cipher_put_suites(u8 *pos, int ciphers); 456int wpa_pick_pairwise_cipher(int ciphers, int none_allowed); 457int wpa_pick_group_cipher(int ciphers); 458int wpa_parse_cipher(const char *value); 459int wpa_write_ciphers(char *start, char *end, int ciphers, const char *delim); 460int wpa_select_ap_group_cipher(int wpa, int wpa_pairwise, int rsn_pairwise); 461unsigned int wpa_mic_len(int akmp); 462 463#endif /* WPA_COMMON_H */ 464