2 * WPA definitions shared between hostapd and wpa_supplicant
3 * Copyright (c) 2002-2008, Jouni Malinen <j@w1.fi>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
18 #define WPA_MAX_SSID_LEN 32
23 #define WPA_REPLAY_COUNTER_LEN 8
24 #define WPA_NONCE_LEN 32
25 #define WPA_KEY_RSC_LEN 8
26 #define WPA_GMK_LEN 32
27 #define WPA_GTK_MAX_LEN 32
29 #define WPA_SELECTOR_LEN 4
31 #define RSN_SELECTOR_LEN 4
34 #define RSN_SELECTOR(a, b, c, d) \
35 ((((u32) (a)) << 24) | (((u32) (b)) << 16) | (((u32) (c)) << 8) | \
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_CIPHER_SUITE_NONE RSN_SELECTOR(0x00, 0x50, 0xf2, 0)
42 #define WPA_CIPHER_SUITE_WEP40 RSN_SELECTOR(0x00, 0x50, 0xf2, 1)
43 #define WPA_CIPHER_SUITE_TKIP RSN_SELECTOR(0x00, 0x50, 0xf2, 2)
45 #define WPA_CIPHER_SUITE_WRAP RSN_SELECTOR(0x00, 0x50, 0xf2, 3)
47 #define WPA_CIPHER_SUITE_CCMP RSN_SELECTOR(0x00, 0x50, 0xf2, 4)
48 #define WPA_CIPHER_SUITE_WEP104 RSN_SELECTOR(0x00, 0x50, 0xf2, 5)
51 #define RSN_AUTH_KEY_MGMT_UNSPEC_802_1X RSN_SELECTOR(0x00, 0x0f, 0xac, 1)
52 #define RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X RSN_SELECTOR(0x00, 0x0f, 0xac, 2)
53 #ifdef CONFIG_IEEE80211R
54 #define RSN_AUTH_KEY_MGMT_FT_802_1X RSN_SELECTOR(0x00, 0x0f, 0xac, 3)
55 #define RSN_AUTH_KEY_MGMT_FT_PSK RSN_SELECTOR(0x00, 0x0f, 0xac, 4)
56 #endif /* CONFIG_IEEE80211R */
57 #define RSN_AUTH_KEY_MGMT_802_1X_SHA256 RSN_SELECTOR(0x00, 0x0f, 0xac, 5)
58 #define RSN_AUTH_KEY_MGMT_PSK_SHA256 RSN_SELECTOR(0x00, 0x0f, 0xac, 6)
60 #define RSN_CIPHER_SUITE_NONE RSN_SELECTOR(0x00, 0x0f, 0xac, 0)
61 #define RSN_CIPHER_SUITE_WEP40 RSN_SELECTOR(0x00, 0x0f, 0xac, 1)
62 #define RSN_CIPHER_SUITE_TKIP RSN_SELECTOR(0x00, 0x0f, 0xac, 2)
64 #define RSN_CIPHER_SUITE_WRAP RSN_SELECTOR(0x00, 0x0f, 0xac, 3)
66 #define RSN_CIPHER_SUITE_CCMP RSN_SELECTOR(0x00, 0x0f, 0xac, 4)
67 #define RSN_CIPHER_SUITE_WEP104 RSN_SELECTOR(0x00, 0x0f, 0xac, 5)
68 #ifdef CONFIG_IEEE80211W
69 #define RSN_CIPHER_SUITE_AES_128_CMAC RSN_SELECTOR(0x00, 0x0f, 0xac, 6)
70 #endif /* CONFIG_IEEE80211W */
72 /* EAPOL-Key Key Data Encapsulation
73 * GroupKey and PeerKey require encryption, otherwise, encryption is optional.
75 #define RSN_KEY_DATA_GROUPKEY RSN_SELECTOR(0x00, 0x0f, 0xac, 1)
77 #define RSN_KEY_DATA_STAKEY RSN_SELECTOR(0x00, 0x0f, 0xac, 2)
79 #define RSN_KEY_DATA_MAC_ADDR RSN_SELECTOR(0x00, 0x0f, 0xac, 3)
80 #define RSN_KEY_DATA_PMKID RSN_SELECTOR(0x00, 0x0f, 0xac, 4)
82 #define RSN_KEY_DATA_SMK RSN_SELECTOR(0x00, 0x0f, 0xac, 5)
83 #define RSN_KEY_DATA_NONCE RSN_SELECTOR(0x00, 0x0f, 0xac, 6)
84 #define RSN_KEY_DATA_LIFETIME RSN_SELECTOR(0x00, 0x0f, 0xac, 7)
85 #define RSN_KEY_DATA_ERROR RSN_SELECTOR(0x00, 0x0f, 0xac, 8)
86 #endif /* CONFIG_PEERKEY */
87 #ifdef CONFIG_IEEE80211W
88 #define RSN_KEY_DATA_IGTK RSN_SELECTOR(0x00, 0x0f, 0xac, 9)
89 #endif /* CONFIG_IEEE80211W */
91 #define WPA_OUI_TYPE RSN_SELECTOR(0x00, 0x50, 0xf2, 1)
93 #define RSN_SELECTOR_PUT(a, val) WPA_PUT_BE32((u8 *) (a), (val))
94 #define RSN_SELECTOR_GET(a) WPA_GET_BE32((const u8 *) (a))
96 #define RSN_NUM_REPLAY_COUNTERS_1 0
97 #define RSN_NUM_REPLAY_COUNTERS_2 1
98 #define RSN_NUM_REPLAY_COUNTERS_4 2
99 #define RSN_NUM_REPLAY_COUNTERS_16 3
103 #pragma pack(push, 1)
104 #endif /* _MSC_VER */
106 #ifdef CONFIG_IEEE80211W
107 #define WPA_IGTK_LEN 16
108 #endif /* CONFIG_IEEE80211W */
111 /* IEEE 802.11, 7.3.2.25.3 RSN Capabilities */
112 #define WPA_CAPABILITY_PREAUTH BIT(0)
113 #define WPA_CAPABILITY_NO_PAIRWISE BIT(1)
114 /* B2-B3: PTKSA Replay Counter */
115 /* B4-B5: GTKSA Replay Counter */
116 #define WPA_CAPABILITY_MFPR BIT(6)
117 #define WPA_CAPABILITY_MFPC BIT(7)
118 #define WPA_CAPABILITY_PEERKEY_ENABLED BIT(9)
122 #define MOBILITY_DOMAIN_ID_LEN 2
123 #define FT_R0KH_ID_MAX_LEN 48
124 #define FT_R1KH_ID_LEN 6
125 #define WPA_PMK_NAME_LEN 16
128 /* IEEE 802.11, 8.5.2 EAPOL-Key frames */
129 #define WPA_KEY_INFO_TYPE_MASK ((u16) (BIT(0) | BIT(1) | BIT(2)))
130 #define WPA_KEY_INFO_TYPE_HMAC_MD5_RC4 BIT(0)
131 #define WPA_KEY_INFO_TYPE_HMAC_SHA1_AES BIT(1)
132 #define WPA_KEY_INFO_TYPE_AES_128_CMAC 3
133 #define WPA_KEY_INFO_KEY_TYPE BIT(3) /* 1 = Pairwise, 0 = Group key */
134 /* bit4..5 is used in WPA, but is reserved in IEEE 802.11i/RSN */
135 #define WPA_KEY_INFO_KEY_INDEX_MASK (BIT(4) | BIT(5))
136 #define WPA_KEY_INFO_KEY_INDEX_SHIFT 4
137 #define WPA_KEY_INFO_INSTALL BIT(6) /* pairwise */
138 #define WPA_KEY_INFO_TXRX BIT(6) /* group */
139 #define WPA_KEY_INFO_ACK BIT(7)
140 #define WPA_KEY_INFO_MIC BIT(8)
141 #define WPA_KEY_INFO_SECURE BIT(9)
142 #define WPA_KEY_INFO_ERROR BIT(10)
143 #define WPA_KEY_INFO_REQUEST BIT(11)
144 #define WPA_KEY_INFO_ENCR_KEY_DATA BIT(12) /* IEEE 802.11i/RSN only */
145 #define WPA_KEY_INFO_SMK_MESSAGE BIT(13)
148 struct wpa_eapol_key {
150 /* Note: key_info, key_length, and key_data_length are unaligned */
151 u8 key_info[2]; /* big endian */
152 u8 key_length[2]; /* big endian */
153 u8 replay_counter[WPA_REPLAY_COUNTER_LEN];
154 u8 key_nonce[WPA_NONCE_LEN];
156 u8 key_rsc[WPA_KEY_RSC_LEN];
157 u8 key_id[8]; /* Reserved in IEEE 802.11i/RSN */
159 u8 key_data_length[2]; /* big endian */
160 /* followed by key_data_length bytes of key_data */
164 * struct wpa_ptk - WPA Pairwise Transient Key
165 * IEEE Std 802.11i-2004 - 8.5.1.2 Pairwise key hierarchy
168 u8 kck[16]; /* EAPOL-Key Key Confirmation Key (KCK) */
169 u8 kek[16]; /* EAPOL-Key Key Encryption Key (KEK) */
170 u8 tk1[16]; /* Temporal Key 1 (TK1) */
172 u8 tk2[16]; /* Temporal Key 2 (TK2) */
182 * 00-50-f2:1 (OUI:OUI type)
183 * 0x01 0x00 (version; little endian)
184 * (all following fields are optional:)
185 * Group Suite Selector (4 octets) (default: TKIP)
186 * Pairwise Suite Count (2 octets, little endian) (default: 1)
187 * Pairwise Suite List (4 * n octets) (default: TKIP)
188 * Authenticated Key Management Suite Count (2 octets, little endian)
190 * Authenticated Key Management Suite List (4 * n octets)
191 * (default: unspec 802.1X)
192 * WPA Capabilities (2 octets, little endian) (default: 0)
198 u8 oui[4]; /* 24-bit OUI followed by 8-bit OUI type */
199 u8 version[2]; /* little endian */
205 * 3/4: one or two RSN IEs + GTK IE (encrypted)
207 * 1/2: GTK IE (encrypted)
212 * 0x01 0x00 (version; little endian)
213 * (all following fields are optional:)
214 * Group Suite Selector (4 octets) (default: CCMP)
215 * Pairwise Suite Count (2 octets, little endian) (default: 1)
216 * Pairwise Suite List (4 * n octets) (default: CCMP)
217 * Authenticated Key Management Suite Count (2 octets, little endian)
219 * Authenticated Key Management Suite List (4 * n octets)
220 * (default: unspec 802.1X)
221 * RSN Capabilities (2 octets, little endian) (default: 0)
222 * PMKID Count (2 octets) (default: 0)
223 * PMKID List (16 * n octets)
224 * Management Group Cipher Suite (4 octets) (default: AES-128-CMAC)
228 u8 elem_id; /* WLAN_EID_RSN */
230 u8 version[2]; /* little endian */
234 #ifdef CONFIG_PEERKEY
236 STK_MUI_4WAY_STA_AP = 1,
237 STK_MUI_4WAY_STAT_STA = 2,
244 STK_ERR_STA_NRSN = 2,
248 #endif /* CONFIG_PEERKEY */
250 struct rsn_error_kde {
255 #ifdef CONFIG_IEEE80211W
256 struct wpa_igtk_kde {
259 u8 igtk[WPA_IGTK_LEN];
261 #endif /* CONFIG_IEEE80211W */
263 #ifdef CONFIG_IEEE80211R
265 u8 mobility_domain[MOBILITY_DOMAIN_ID_LEN];
269 #define RSN_FT_CAPAB_FT_OVER_DS BIT(0)
270 #define RSN_FT_CAPAB_FT_RESOURCE_REQ_SUPP BIT(1)
275 u8 anonce[WPA_NONCE_LEN];
276 u8 snonce[WPA_NONCE_LEN];
277 /* followed by optional parameters */
280 #define FTIE_SUBELEM_R1KH_ID 1
281 #define FTIE_SUBELEM_GTK 2
282 #define FTIE_SUBELEM_R0KH_ID 3
283 #define FTIE_SUBELEM_IGTK 4
291 #endif /* CONFIG_IEEE80211R */
295 #endif /* _MSC_VER */
298 int wpa_eapol_key_mic(const u8 *key, int ver, const u8 *buf, size_t len,
300 void wpa_pmk_to_ptk(const u8 *pmk, size_t pmk_len, const char *label,
301 const u8 *addr1, const u8 *addr2,
302 const u8 *nonce1, const u8 *nonce2,
303 u8 *ptk, size_t ptk_len, int use_sha256);
305 #ifdef CONFIG_IEEE80211R
306 int wpa_ft_mic(const u8 *kck, const u8 *sta_addr, const u8 *ap_addr,
307 u8 transaction_seqnum, const u8 *mdie, size_t mdie_len,
308 const u8 *ftie, size_t ftie_len,
309 const u8 *rsnie, size_t rsnie_len,
310 const u8 *ric, size_t ric_len, u8 *mic);
311 void wpa_derive_pmk_r0(const u8 *xxkey, size_t xxkey_len,
312 const u8 *ssid, size_t ssid_len,
313 const u8 *mdid, const u8 *r0kh_id, size_t r0kh_id_len,
314 const u8 *s0kh_id, u8 *pmk_r0, u8 *pmk_r0_name);
315 void wpa_derive_pmk_r1_name(const u8 *pmk_r0_name, const u8 *r1kh_id,
316 const u8 *s1kh_id, u8 *pmk_r1_name);
317 void wpa_derive_pmk_r1(const u8 *pmk_r0, const u8 *pmk_r0_name,
318 const u8 *r1kh_id, const u8 *s1kh_id,
319 u8 *pmk_r1, u8 *pmk_r1_name);
320 void wpa_pmk_r1_to_ptk(const u8 *pmk_r1, const u8 *snonce, const u8 *anonce,
321 const u8 *sta_addr, const u8 *bssid,
322 const u8 *pmk_r1_name,
323 u8 *ptk, size_t ptk_len, u8 *ptk_name);
324 #endif /* CONFIG_IEEE80211R */
334 int mgmt_group_cipher;
338 int wpa_parse_wpa_ie_rsn(const u8 *rsn_ie, size_t rsn_ie_len,
339 struct wpa_ie_data *data);
341 void rsn_pmkid(const u8 *pmk, size_t pmk_len, const u8 *aa, const u8 *spa,
342 u8 *pmkid, int use_sha256);
344 const char * wpa_cipher_txt(int cipher);
345 const char * wpa_key_mgmt_txt(int key_mgmt, int proto);
346 int wpa_compare_rsn_ie(int ft_initial_assoc,
347 const u8 *ie1, size_t ie1len,
348 const u8 *ie2, size_t ie2len);
349 int wpa_insert_pmkid(u8 *ies, size_t ies_len, const u8 *pmkid);
351 #endif /* WPA_COMMON_H */