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      1 /*
      2  * WPA definitions shared between hostapd and wpa_supplicant
      3  * Copyright (c) 2002-2015, Jouni Malinen <j (at) 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 | \
     25 WPA_CIPHER_GCMP_256 | WPA_CIPHER_CCMP_256)
     26 #define WPA_ALLOWED_GROUP_CIPHERS \
     27 (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP | WPA_CIPHER_TKIP | \
     28 WPA_CIPHER_GCMP_256 | WPA_CIPHER_CCMP_256 | \
     29 WPA_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 \
     63 RSN_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 
    172 struct 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 
    187 struct 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  */
    211 struct 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 
    235 struct 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 
    267 struct 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
    275 enum {
    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 
    282 enum {
    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 
    290 struct 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)
    297 struct 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 
    304 struct 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 
    312 struct 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 
    325 struct 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 
    337 int wpa_eapol_key_mic(const u8 *key, size_t key_len, int akmp, int ver,
    338 		      const u8 *buf, size_t len, u8 *mic);
    339 int 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
    345 int 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);
    351 void 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);
    355 void wpa_derive_pmk_r1_name(const u8 *pmk_r0_name, const u8 *r1kh_id,
    356 			    const u8 *s1kh_id, u8 *pmk_r1_name);
    357 void 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);
    360 int 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 
    366 struct 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 
    378 int wpa_parse_wpa_ie_rsn(const u8 *rsn_ie, size_t rsn_ie_len,
    379 			 struct wpa_ie_data *data);
    380 int wpa_parse_wpa_ie_wpa(const u8 *wpa_ie, size_t wpa_ie_len,
    381 			 struct wpa_ie_data *data);
    382 
    383 void 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
    386 int rsn_pmkid_suite_b(const u8 *kck, size_t kck_len, const u8 *aa,
    387 		       const u8 *spa, u8 *pmkid);
    388 #else /* CONFIG_SUITEB */
    389 static 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
    396 int 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 */
    399 static 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 
    406 const char * wpa_cipher_txt(int cipher);
    407 const char * wpa_key_mgmt_txt(int key_mgmt, int proto);
    408 u32 wpa_akm_to_suite(int akm);
    409 int wpa_compare_rsn_ie(int ft_initial_assoc,
    410 		       const u8 *ie1, size_t ie1len,
    411 		       const u8 *ie2, size_t ie2len);
    412 int wpa_insert_pmkid(u8 *ies, size_t *ies_len, const u8 *pmkid);
    413 
    414 struct 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 
    435 int wpa_ft_parse_ies(const u8 *ies, size_t ies_len, struct wpa_ft_ies *parse);
    436 
    437 int wpa_cipher_key_len(int cipher);
    438 int wpa_cipher_rsc_len(int cipher);
    439 int wpa_cipher_to_alg(int cipher);
    440 int wpa_cipher_valid_group(int cipher);
    441 int wpa_cipher_valid_pairwise(int cipher);
    442 int wpa_cipher_valid_mgmt_group(int cipher);
    443 u32 wpa_cipher_to_suite(int proto, int cipher);
    444 int rsn_cipher_put_suites(u8 *pos, int ciphers);
    445 int wpa_cipher_put_suites(u8 *pos, int ciphers);
    446 int wpa_pick_pairwise_cipher(int ciphers, int none_allowed);
    447 int wpa_pick_group_cipher(int ciphers);
    448 int wpa_parse_cipher(const char *value);
    449 int wpa_write_ciphers(char *start, char *end, int ciphers, const char *delim);
    450 int wpa_select_ap_group_cipher(int wpa, int wpa_pairwise, int rsn_pairwise);
    451 unsigned int wpa_mic_len(int akmp);
    452 
    453 #endif /* WPA_COMMON_H */
    454