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 PMK_LEN_SUITE_B_192 48 16#define PMK_LEN_MAX 48 17#define WPA_REPLAY_COUNTER_LEN 8 18#define WPA_NONCE_LEN 32 19#define WPA_KEY_RSC_LEN 8 20#define WPA_GMK_LEN 32 21#define WPA_GTK_MAX_LEN 32 22 23#define WPA_ALLOWED_PAIRWISE_CIPHERS \ 24(WPA_CIPHER_CCMP | WPA_CIPHER_GCMP | WPA_CIPHER_TKIP | WPA_CIPHER_NONE | \ 25WPA_CIPHER_GCMP_256 | WPA_CIPHER_CCMP_256) 26#define WPA_ALLOWED_GROUP_CIPHERS \ 27(WPA_CIPHER_CCMP | WPA_CIPHER_GCMP | WPA_CIPHER_TKIP | \ 28WPA_CIPHER_GCMP_256 | WPA_CIPHER_CCMP_256 | \ 29WPA_CIPHER_GTK_NOT_USED) 30 31#define WPA_SELECTOR_LEN 4 32#define WPA_VERSION 1 33#define RSN_SELECTOR_LEN 4 34#define RSN_VERSION 1 35 36#define RSN_SELECTOR(a, b, c, d) \ 37 ((((u32) (a)) << 24) | (((u32) (b)) << 16) | (((u32) (c)) << 8) | \ 38 (u32) (d)) 39 40#define WPA_AUTH_KEY_MGMT_NONE RSN_SELECTOR(0x00, 0x50, 0xf2, 0) 41#define WPA_AUTH_KEY_MGMT_UNSPEC_802_1X RSN_SELECTOR(0x00, 0x50, 0xf2, 1) 42#define WPA_AUTH_KEY_MGMT_PSK_OVER_802_1X RSN_SELECTOR(0x00, 0x50, 0xf2, 2) 43#define WPA_AUTH_KEY_MGMT_CCKM RSN_SELECTOR(0x00, 0x40, 0x96, 0) 44#define WPA_CIPHER_SUITE_NONE RSN_SELECTOR(0x00, 0x50, 0xf2, 0) 45#define WPA_CIPHER_SUITE_TKIP RSN_SELECTOR(0x00, 0x50, 0xf2, 2) 46#define WPA_CIPHER_SUITE_CCMP RSN_SELECTOR(0x00, 0x50, 0xf2, 4) 47 48 49#define RSN_AUTH_KEY_MGMT_UNSPEC_802_1X RSN_SELECTOR(0x00, 0x0f, 0xac, 1) 50#define RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X RSN_SELECTOR(0x00, 0x0f, 0xac, 2) 51#ifdef CONFIG_IEEE80211R 52#define RSN_AUTH_KEY_MGMT_FT_802_1X RSN_SELECTOR(0x00, 0x0f, 0xac, 3) 53#define RSN_AUTH_KEY_MGMT_FT_PSK RSN_SELECTOR(0x00, 0x0f, 0xac, 4) 54#endif /* CONFIG_IEEE80211R */ 55#define RSN_AUTH_KEY_MGMT_802_1X_SHA256 RSN_SELECTOR(0x00, 0x0f, 0xac, 5) 56#define RSN_AUTH_KEY_MGMT_PSK_SHA256 RSN_SELECTOR(0x00, 0x0f, 0xac, 6) 57#define RSN_AUTH_KEY_MGMT_TPK_HANDSHAKE RSN_SELECTOR(0x00, 0x0f, 0xac, 7) 58#define RSN_AUTH_KEY_MGMT_SAE RSN_SELECTOR(0x00, 0x0f, 0xac, 8) 59#define RSN_AUTH_KEY_MGMT_FT_SAE RSN_SELECTOR(0x00, 0x0f, 0xac, 9) 60#define RSN_AUTH_KEY_MGMT_802_1X_SUITE_B RSN_SELECTOR(0x00, 0x0f, 0xac, 11) 61#define RSN_AUTH_KEY_MGMT_802_1X_SUITE_B_192 RSN_SELECTOR(0x00, 0x0f, 0xac, 12) 62#define RSN_AUTH_KEY_MGMT_FT_802_1X_SUITE_B_192 \ 63RSN_SELECTOR(0x00, 0x0f, 0xac, 13) 64#define RSN_AUTH_KEY_MGMT_CCKM RSN_SELECTOR(0x00, 0x40, 0x96, 0x00) 65#define RSN_AUTH_KEY_MGMT_OSEN RSN_SELECTOR(0x50, 0x6f, 0x9a, 0x01) 66 67#define RSN_CIPHER_SUITE_NONE RSN_SELECTOR(0x00, 0x0f, 0xac, 0) 68#define RSN_CIPHER_SUITE_TKIP RSN_SELECTOR(0x00, 0x0f, 0xac, 2) 69#if 0 70#define RSN_CIPHER_SUITE_WRAP RSN_SELECTOR(0x00, 0x0f, 0xac, 3) 71#endif 72#define RSN_CIPHER_SUITE_CCMP RSN_SELECTOR(0x00, 0x0f, 0xac, 4) 73#define RSN_CIPHER_SUITE_AES_128_CMAC RSN_SELECTOR(0x00, 0x0f, 0xac, 6) 74#define RSN_CIPHER_SUITE_NO_GROUP_ADDRESSED RSN_SELECTOR(0x00, 0x0f, 0xac, 7) 75#define RSN_CIPHER_SUITE_GCMP RSN_SELECTOR(0x00, 0x0f, 0xac, 8) 76#define RSN_CIPHER_SUITE_GCMP_256 RSN_SELECTOR(0x00, 0x0f, 0xac, 9) 77#define RSN_CIPHER_SUITE_CCMP_256 RSN_SELECTOR(0x00, 0x0f, 0xac, 10) 78#define RSN_CIPHER_SUITE_BIP_GMAC_128 RSN_SELECTOR(0x00, 0x0f, 0xac, 11) 79#define RSN_CIPHER_SUITE_BIP_GMAC_256 RSN_SELECTOR(0x00, 0x0f, 0xac, 12) 80#define RSN_CIPHER_SUITE_BIP_CMAC_256 RSN_SELECTOR(0x00, 0x0f, 0xac, 13) 81 82/* EAPOL-Key Key Data Encapsulation 83 * GroupKey and PeerKey require encryption, otherwise, encryption is optional. 84 */ 85#define RSN_KEY_DATA_GROUPKEY RSN_SELECTOR(0x00, 0x0f, 0xac, 1) 86#if 0 87#define RSN_KEY_DATA_STAKEY RSN_SELECTOR(0x00, 0x0f, 0xac, 2) 88#endif 89#define RSN_KEY_DATA_MAC_ADDR RSN_SELECTOR(0x00, 0x0f, 0xac, 3) 90#define RSN_KEY_DATA_PMKID RSN_SELECTOR(0x00, 0x0f, 0xac, 4) 91#ifdef CONFIG_PEERKEY 92#define RSN_KEY_DATA_SMK RSN_SELECTOR(0x00, 0x0f, 0xac, 5) 93#define RSN_KEY_DATA_NONCE RSN_SELECTOR(0x00, 0x0f, 0xac, 6) 94#define RSN_KEY_DATA_LIFETIME RSN_SELECTOR(0x00, 0x0f, 0xac, 7) 95#define RSN_KEY_DATA_ERROR RSN_SELECTOR(0x00, 0x0f, 0xac, 8) 96#endif /* CONFIG_PEERKEY */ 97#ifdef CONFIG_IEEE80211W 98#define RSN_KEY_DATA_IGTK RSN_SELECTOR(0x00, 0x0f, 0xac, 9) 99#endif /* CONFIG_IEEE80211W */ 100#define RSN_KEY_DATA_KEYID RSN_SELECTOR(0x00, 0x0f, 0xac, 10) 101#define RSN_KEY_DATA_MULTIBAND_GTK RSN_SELECTOR(0x00, 0x0f, 0xac, 11) 102#define RSN_KEY_DATA_MULTIBAND_KEYID RSN_SELECTOR(0x00, 0x0f, 0xac, 12) 103 104#define WFA_KEY_DATA_IP_ADDR_REQ RSN_SELECTOR(0x50, 0x6f, 0x9a, 4) 105#define WFA_KEY_DATA_IP_ADDR_ALLOC RSN_SELECTOR(0x50, 0x6f, 0x9a, 5) 106 107#define WPA_OUI_TYPE RSN_SELECTOR(0x00, 0x50, 0xf2, 1) 108 109#define RSN_SELECTOR_PUT(a, val) WPA_PUT_BE32((u8 *) (a), (val)) 110#define RSN_SELECTOR_GET(a) WPA_GET_BE32((const u8 *) (a)) 111 112#define RSN_NUM_REPLAY_COUNTERS_1 0 113#define RSN_NUM_REPLAY_COUNTERS_2 1 114#define RSN_NUM_REPLAY_COUNTERS_4 2 115#define RSN_NUM_REPLAY_COUNTERS_16 3 116 117 118#ifdef _MSC_VER 119#pragma pack(push, 1) 120#endif /* _MSC_VER */ 121 122#ifdef CONFIG_IEEE80211W 123#define WPA_IGTK_LEN 16 124#define WPA_IGTK_MAX_LEN 32 125#endif /* CONFIG_IEEE80211W */ 126 127 128/* IEEE 802.11, 7.3.2.25.3 RSN Capabilities */ 129#define WPA_CAPABILITY_PREAUTH BIT(0) 130#define WPA_CAPABILITY_NO_PAIRWISE BIT(1) 131/* B2-B3: PTKSA Replay Counter */ 132/* B4-B5: GTKSA Replay Counter */ 133#define WPA_CAPABILITY_MFPR BIT(6) 134#define WPA_CAPABILITY_MFPC BIT(7) 135/* B8: Reserved */ 136#define WPA_CAPABILITY_PEERKEY_ENABLED BIT(9) 137#define WPA_CAPABILITY_SPP_A_MSDU_CAPABLE BIT(10) 138#define WPA_CAPABILITY_SPP_A_MSDU_REQUIRED BIT(11) 139#define WPA_CAPABILITY_PBAC BIT(12) 140#define WPA_CAPABILITY_EXT_KEY_ID_FOR_UNICAST BIT(13) 141/* B14-B15: Reserved */ 142 143 144/* IEEE 802.11r */ 145#define MOBILITY_DOMAIN_ID_LEN 2 146#define FT_R0KH_ID_MAX_LEN 48 147#define FT_R1KH_ID_LEN 6 148#define WPA_PMK_NAME_LEN 16 149 150 151/* IEEE 802.11, 8.5.2 EAPOL-Key frames */ 152#define WPA_KEY_INFO_TYPE_MASK ((u16) (BIT(0) | BIT(1) | BIT(2))) 153#define WPA_KEY_INFO_TYPE_AKM_DEFINED 0 154#define WPA_KEY_INFO_TYPE_HMAC_MD5_RC4 BIT(0) 155#define WPA_KEY_INFO_TYPE_HMAC_SHA1_AES BIT(1) 156#define WPA_KEY_INFO_TYPE_AES_128_CMAC 3 157#define WPA_KEY_INFO_KEY_TYPE BIT(3) /* 1 = Pairwise, 0 = Group key */ 158/* bit4..5 is used in WPA, but is reserved in IEEE 802.11i/RSN */ 159#define WPA_KEY_INFO_KEY_INDEX_MASK (BIT(4) | BIT(5)) 160#define WPA_KEY_INFO_KEY_INDEX_SHIFT 4 161#define WPA_KEY_INFO_INSTALL BIT(6) /* pairwise */ 162#define WPA_KEY_INFO_TXRX BIT(6) /* group */ 163#define WPA_KEY_INFO_ACK BIT(7) 164#define WPA_KEY_INFO_MIC BIT(8) 165#define WPA_KEY_INFO_SECURE BIT(9) 166#define WPA_KEY_INFO_ERROR BIT(10) 167#define WPA_KEY_INFO_REQUEST BIT(11) 168#define WPA_KEY_INFO_ENCR_KEY_DATA BIT(12) /* IEEE 802.11i/RSN only */ 169#define WPA_KEY_INFO_SMK_MESSAGE BIT(13) 170 171 172struct wpa_eapol_key { 173 u8 type; 174 /* Note: key_info, key_length, and key_data_length are unaligned */ 175 u8 key_info[2]; /* big endian */ 176 u8 key_length[2]; /* big endian */ 177 u8 replay_counter[WPA_REPLAY_COUNTER_LEN]; 178 u8 key_nonce[WPA_NONCE_LEN]; 179 u8 key_iv[16]; 180 u8 key_rsc[WPA_KEY_RSC_LEN]; 181 u8 key_id[8]; /* Reserved in IEEE 802.11i/RSN */ 182 u8 key_mic[16]; 183 u8 key_data_length[2]; /* big endian */ 184 /* followed by key_data_length bytes of key_data */ 185} STRUCT_PACKED; 186 187struct wpa_eapol_key_192 { 188 u8 type; 189 /* Note: key_info, key_length, and key_data_length are unaligned */ 190 u8 key_info[2]; /* big endian */ 191 u8 key_length[2]; /* big endian */ 192 u8 replay_counter[WPA_REPLAY_COUNTER_LEN]; 193 u8 key_nonce[WPA_NONCE_LEN]; 194 u8 key_iv[16]; 195 u8 key_rsc[WPA_KEY_RSC_LEN]; 196 u8 key_id[8]; /* Reserved in IEEE 802.11i/RSN */ 197 u8 key_mic[24]; 198 u8 key_data_length[2]; /* big endian */ 199 /* followed by key_data_length bytes of key_data */ 200} STRUCT_PACKED; 201 202#define WPA_EAPOL_KEY_MIC_MAX_LEN 24 203#define WPA_KCK_MAX_LEN 24 204#define WPA_KEK_MAX_LEN 32 205#define WPA_TK_MAX_LEN 32 206 207/** 208 * struct wpa_ptk - WPA Pairwise Transient Key 209 * IEEE Std 802.11i-2004 - 8.5.1.2 Pairwise key hierarchy 210 */ 211struct wpa_ptk { 212 u8 kck[WPA_KCK_MAX_LEN]; /* EAPOL-Key Key Confirmation Key (KCK) */ 213 u8 kek[WPA_KEK_MAX_LEN]; /* EAPOL-Key Key Encryption Key (KEK) */ 214 u8 tk[WPA_TK_MAX_LEN]; /* Temporal Key (TK) */ 215 size_t kck_len; 216 size_t kek_len; 217 size_t tk_len; 218}; 219 220 221/* WPA IE version 1 222 * 00-50-f2:1 (OUI:OUI type) 223 * 0x01 0x00 (version; little endian) 224 * (all following fields are optional:) 225 * Group Suite Selector (4 octets) (default: TKIP) 226 * Pairwise Suite Count (2 octets, little endian) (default: 1) 227 * Pairwise Suite List (4 * n octets) (default: TKIP) 228 * Authenticated Key Management Suite Count (2 octets, little endian) 229 * (default: 1) 230 * Authenticated Key Management Suite List (4 * n octets) 231 * (default: unspec 802.1X) 232 * WPA Capabilities (2 octets, little endian) (default: 0) 233 */ 234 235struct wpa_ie_hdr { 236 u8 elem_id; 237 u8 len; 238 u8 oui[4]; /* 24-bit OUI followed by 8-bit OUI type */ 239 u8 version[2]; /* little endian */ 240} STRUCT_PACKED; 241 242 243/* 1/4: PMKID 244 * 2/4: RSN IE 245 * 3/4: one or two RSN IEs + GTK IE (encrypted) 246 * 4/4: empty 247 * 1/2: GTK IE (encrypted) 248 * 2/2: empty 249 */ 250 251/* RSN IE version 1 252 * 0x01 0x00 (version; little endian) 253 * (all following fields are optional:) 254 * Group Suite Selector (4 octets) (default: CCMP) 255 * Pairwise Suite Count (2 octets, little endian) (default: 1) 256 * Pairwise Suite List (4 * n octets) (default: CCMP) 257 * Authenticated Key Management Suite Count (2 octets, little endian) 258 * (default: 1) 259 * Authenticated Key Management Suite List (4 * n octets) 260 * (default: unspec 802.1X) 261 * RSN Capabilities (2 octets, little endian) (default: 0) 262 * PMKID Count (2 octets) (default: 0) 263 * PMKID List (16 * n octets) 264 * Management Group Cipher Suite (4 octets) (default: AES-128-CMAC) 265 */ 266 267struct rsn_ie_hdr { 268 u8 elem_id; /* WLAN_EID_RSN */ 269 u8 len; 270 u8 version[2]; /* little endian */ 271} STRUCT_PACKED; 272 273 274#ifdef CONFIG_PEERKEY 275enum { 276 STK_MUI_4WAY_STA_AP = 1, 277 STK_MUI_4WAY_STAT_STA = 2, 278 STK_MUI_GTK = 3, 279 STK_MUI_SMK = 4 280}; 281 282enum { 283 STK_ERR_STA_NR = 1, 284 STK_ERR_STA_NRSN = 2, 285 STK_ERR_CPHR_NS = 3, 286 STK_ERR_NO_STSL = 4 287}; 288#endif /* CONFIG_PEERKEY */ 289 290struct rsn_error_kde { 291 be16 mui; 292 be16 error_type; 293} STRUCT_PACKED; 294 295#ifdef CONFIG_IEEE80211W 296#define WPA_IGTK_KDE_PREFIX_LEN (2 + 6) 297struct wpa_igtk_kde { 298 u8 keyid[2]; 299 u8 pn[6]; 300 u8 igtk[WPA_IGTK_MAX_LEN]; 301} STRUCT_PACKED; 302#endif /* CONFIG_IEEE80211W */ 303 304struct rsn_mdie { 305 u8 mobility_domain[MOBILITY_DOMAIN_ID_LEN]; 306 u8 ft_capab; 307} STRUCT_PACKED; 308 309#define RSN_FT_CAPAB_FT_OVER_DS BIT(0) 310#define RSN_FT_CAPAB_FT_RESOURCE_REQ_SUPP BIT(1) 311 312struct rsn_ftie { 313 u8 mic_control[2]; 314 u8 mic[16]; 315 u8 anonce[WPA_NONCE_LEN]; 316 u8 snonce[WPA_NONCE_LEN]; 317 /* followed by optional parameters */ 318} STRUCT_PACKED; 319 320#define FTIE_SUBELEM_R1KH_ID 1 321#define FTIE_SUBELEM_GTK 2 322#define FTIE_SUBELEM_R0KH_ID 3 323#define FTIE_SUBELEM_IGTK 4 324 325struct rsn_rdie { 326 u8 id; 327 u8 descr_count; 328 le16 status_code; 329} STRUCT_PACKED; 330 331 332#ifdef _MSC_VER 333#pragma pack(pop) 334#endif /* _MSC_VER */ 335 336 337int wpa_eapol_key_mic(const u8 *key, size_t key_len, int akmp, int ver, 338 const u8 *buf, size_t len, u8 *mic); 339int wpa_pmk_to_ptk(const u8 *pmk, size_t pmk_len, const char *label, 340 const u8 *addr1, const u8 *addr2, 341 const u8 *nonce1, const u8 *nonce2, 342 struct wpa_ptk *ptk, int akmp, int cipher); 343 344#ifdef CONFIG_IEEE80211R 345int wpa_ft_mic(const u8 *kck, size_t kck_len, const u8 *sta_addr, 346 const u8 *ap_addr, u8 transaction_seqnum, 347 const u8 *mdie, size_t mdie_len, 348 const u8 *ftie, size_t ftie_len, 349 const u8 *rsnie, size_t rsnie_len, 350 const u8 *ric, size_t ric_len, u8 *mic); 351void wpa_derive_pmk_r0(const u8 *xxkey, size_t xxkey_len, 352 const u8 *ssid, size_t ssid_len, 353 const u8 *mdid, const u8 *r0kh_id, size_t r0kh_id_len, 354 const u8 *s0kh_id, u8 *pmk_r0, u8 *pmk_r0_name); 355void wpa_derive_pmk_r1_name(const u8 *pmk_r0_name, const u8 *r1kh_id, 356 const u8 *s1kh_id, u8 *pmk_r1_name); 357void wpa_derive_pmk_r1(const u8 *pmk_r0, const u8 *pmk_r0_name, 358 const u8 *r1kh_id, const u8 *s1kh_id, 359 u8 *pmk_r1, u8 *pmk_r1_name); 360int wpa_pmk_r1_to_ptk(const u8 *pmk_r1, const u8 *snonce, const u8 *anonce, 361 const u8 *sta_addr, const u8 *bssid, 362 const u8 *pmk_r1_name, 363 struct wpa_ptk *ptk, u8 *ptk_name, int akmp, int cipher); 364#endif /* CONFIG_IEEE80211R */ 365 366struct wpa_ie_data { 367 int proto; 368 int pairwise_cipher; 369 int group_cipher; 370 int key_mgmt; 371 int capabilities; 372 size_t num_pmkid; 373 const u8 *pmkid; 374 int mgmt_group_cipher; 375}; 376 377 378int wpa_parse_wpa_ie_rsn(const u8 *rsn_ie, size_t rsn_ie_len, 379 struct wpa_ie_data *data); 380int wpa_parse_wpa_ie_wpa(const u8 *wpa_ie, size_t wpa_ie_len, 381 struct wpa_ie_data *data); 382 383void rsn_pmkid(const u8 *pmk, size_t pmk_len, const u8 *aa, const u8 *spa, 384 u8 *pmkid, int use_sha256); 385#ifdef CONFIG_SUITEB 386int rsn_pmkid_suite_b(const u8 *kck, size_t kck_len, const u8 *aa, 387 const u8 *spa, u8 *pmkid); 388#else /* CONFIG_SUITEB */ 389static inline int rsn_pmkid_suite_b(const u8 *kck, size_t kck_len, const u8 *aa, 390 const u8 *spa, u8 *pmkid) 391{ 392 return -1; 393} 394#endif /* CONFIG_SUITEB */ 395#ifdef CONFIG_SUITEB192 396int rsn_pmkid_suite_b_192(const u8 *kck, size_t kck_len, const u8 *aa, 397 const u8 *spa, u8 *pmkid); 398#else /* CONFIG_SUITEB192 */ 399static inline int rsn_pmkid_suite_b_192(const u8 *kck, size_t kck_len, 400 const u8 *aa, const u8 *spa, u8 *pmkid) 401{ 402 return -1; 403} 404#endif /* CONFIG_SUITEB192 */ 405 406const char * wpa_cipher_txt(int cipher); 407const char * wpa_key_mgmt_txt(int key_mgmt, int proto); 408u32 wpa_akm_to_suite(int akm); 409int wpa_compare_rsn_ie(int ft_initial_assoc, 410 const u8 *ie1, size_t ie1len, 411 const u8 *ie2, size_t ie2len); 412int wpa_insert_pmkid(u8 *ies, size_t *ies_len, const u8 *pmkid); 413 414struct wpa_ft_ies { 415 const u8 *mdie; 416 size_t mdie_len; 417 const u8 *ftie; 418 size_t ftie_len; 419 const u8 *r1kh_id; 420 const u8 *gtk; 421 size_t gtk_len; 422 const u8 *r0kh_id; 423 size_t r0kh_id_len; 424 const u8 *rsn; 425 size_t rsn_len; 426 const u8 *rsn_pmkid; 427 const u8 *tie; 428 size_t tie_len; 429 const u8 *igtk; 430 size_t igtk_len; 431 const u8 *ric; 432 size_t ric_len; 433}; 434 435int wpa_ft_parse_ies(const u8 *ies, size_t ies_len, struct wpa_ft_ies *parse); 436 437int wpa_cipher_key_len(int cipher); 438int wpa_cipher_rsc_len(int cipher); 439int wpa_cipher_to_alg(int cipher); 440int wpa_cipher_valid_group(int cipher); 441int wpa_cipher_valid_pairwise(int cipher); 442int wpa_cipher_valid_mgmt_group(int cipher); 443u32 wpa_cipher_to_suite(int proto, int cipher); 444int rsn_cipher_put_suites(u8 *pos, int ciphers); 445int wpa_cipher_put_suites(u8 *pos, int ciphers); 446int wpa_pick_pairwise_cipher(int ciphers, int none_allowed); 447int wpa_pick_group_cipher(int ciphers); 448int wpa_parse_cipher(const char *value); 449int wpa_write_ciphers(char *start, char *end, int ciphers, const char *delim); 450int wpa_select_ap_group_cipher(int wpa, int wpa_pairwise, int rsn_pairwise); 451unsigned int wpa_mic_len(int akmp); 452 453#endif /* WPA_COMMON_H */ 454