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 | \
23 WPA_CIPHER_GCMP_256 | WPA_CIPHER_CCMP_256)
24 #define WPA_ALLOWED_GROUP_CIPHERS \
25 (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP | WPA_CIPHER_TKIP | \
26 WPA_CIPHER_GCMP_256 | WPA_CIPHER_CCMP_256 | \
27 WPA_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 \
61 RSN_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
170 struct 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
185 struct 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 */
209 struct 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 };
217
218
219 /* WPA IE version 1
220 * 00-50-f2:1 (OUI:OUI type)
221 * 0x01 0x00 (version; little endian)
222 * (all following fields are optional:)
223 * Group Suite Selector (4 octets) (default: TKIP)
224 * Pairwise Suite Count (2 octets, little endian) (default: 1)
225 * Pairwise Suite List (4 * n octets) (default: TKIP)
226 * Authenticated Key Management Suite Count (2 octets, little endian)
227 * (default: 1)
228 * Authenticated Key Management Suite List (4 * n octets)
229 * (default: unspec 802.1X)
230 * WPA Capabilities (2 octets, little endian) (default: 0)
231 */
232
233 struct wpa_ie_hdr {
234 u8 elem_id;
235 u8 len;
236 u8 oui[4]; /* 24-bit OUI followed by 8-bit OUI type */
237 u8 version[2]; /* little endian */
238 } STRUCT_PACKED;
239
240
241 /* 1/4: PMKID
242 * 2/4: RSN IE
243 * 3/4: one or two RSN IEs + GTK IE (encrypted)
244 * 4/4: empty
245 * 1/2: GTK IE (encrypted)
246 * 2/2: empty
247 */
248
249 /* RSN IE version 1
250 * 0x01 0x00 (version; little endian)
251 * (all following fields are optional:)
252 * Group Suite Selector (4 octets) (default: CCMP)
253 * Pairwise Suite Count (2 octets, little endian) (default: 1)
254 * Pairwise Suite List (4 * n octets) (default: CCMP)
255 * Authenticated Key Management Suite Count (2 octets, little endian)
256 * (default: 1)
257 * Authenticated Key Management Suite List (4 * n octets)
258 * (default: unspec 802.1X)
259 * RSN Capabilities (2 octets, little endian) (default: 0)
260 * PMKID Count (2 octets) (default: 0)
261 * PMKID List (16 * n octets)
262 * Management Group Cipher Suite (4 octets) (default: AES-128-CMAC)
263 */
264
265 struct rsn_ie_hdr {
266 u8 elem_id; /* WLAN_EID_RSN */
267 u8 len;
268 u8 version[2]; /* little endian */
269 } STRUCT_PACKED;
270
271
272 #ifdef CONFIG_PEERKEY
273 enum {
274 STK_MUI_4WAY_STA_AP = 1,
275 STK_MUI_4WAY_STAT_STA = 2,
276 STK_MUI_GTK = 3,
277 STK_MUI_SMK = 4
278 };
279
280 enum {
281 STK_ERR_STA_NR = 1,
282 STK_ERR_STA_NRSN = 2,
283 STK_ERR_CPHR_NS = 3,
284 STK_ERR_NO_STSL = 4
285 };
286 #endif /* CONFIG_PEERKEY */
287
288 struct rsn_error_kde {
289 be16 mui;
290 be16 error_type;
291 } STRUCT_PACKED;
292
293 #ifdef CONFIG_IEEE80211W
294 #define WPA_IGTK_KDE_PREFIX_LEN (2 + 6)
295 struct wpa_igtk_kde {
296 u8 keyid[2];
297 u8 pn[6];
298 u8 igtk[WPA_IGTK_MAX_LEN];
299 } STRUCT_PACKED;
300 #endif /* CONFIG_IEEE80211W */
301
302 struct rsn_mdie {
303 u8 mobility_domain[MOBILITY_DOMAIN_ID_LEN];
304 u8 ft_capab;
305 } STRUCT_PACKED;
306
307 #define RSN_FT_CAPAB_FT_OVER_DS BIT(0)
308 #define RSN_FT_CAPAB_FT_RESOURCE_REQ_SUPP BIT(1)
309
310 struct rsn_ftie {
311 u8 mic_control[2];
312 u8 mic[16];
313 u8 anonce[WPA_NONCE_LEN];
314 u8 snonce[WPA_NONCE_LEN];
315 /* followed by optional parameters */
316 } STRUCT_PACKED;
317
318 #define FTIE_SUBELEM_R1KH_ID 1
319 #define FTIE_SUBELEM_GTK 2
320 #define FTIE_SUBELEM_R0KH_ID 3
321 #define FTIE_SUBELEM_IGTK 4
322
323 struct rsn_rdie {
324 u8 id;
325 u8 descr_count;
326 le16 status_code;
327 } STRUCT_PACKED;
328
329
330 #ifdef _MSC_VER
331 #pragma pack(pop)
332 #endif /* _MSC_VER */
333
334
335 int wpa_eapol_key_mic(const u8 *key, size_t key_len, int akmp, int ver,
336 const u8 *buf, size_t len, u8 *mic);
337 int wpa_pmk_to_ptk(const u8 *pmk, size_t pmk_len, const char *label,
338 const u8 *addr1, const u8 *addr2,
339 const u8 *nonce1, const u8 *nonce2,
340 struct wpa_ptk *ptk, int akmp, int cipher);
341
342 #ifdef CONFIG_IEEE80211R
343 int wpa_ft_mic(const u8 *kck, size_t kck_len, const u8 *sta_addr,
344 const u8 *ap_addr, u8 transaction_seqnum,
345 const u8 *mdie, size_t mdie_len,
346 const u8 *ftie, size_t ftie_len,
347 const u8 *rsnie, size_t rsnie_len,
348 const u8 *ric, size_t ric_len, u8 *mic);
349 void wpa_derive_pmk_r0(const u8 *xxkey, size_t xxkey_len,
350 const u8 *ssid, size_t ssid_len,
351 const u8 *mdid, const u8 *r0kh_id, size_t r0kh_id_len,
352 const u8 *s0kh_id, u8 *pmk_r0, u8 *pmk_r0_name);
353 void wpa_derive_pmk_r1_name(const u8 *pmk_r0_name, const u8 *r1kh_id,
354 const u8 *s1kh_id, u8 *pmk_r1_name);
355 void wpa_derive_pmk_r1(const u8 *pmk_r0, const u8 *pmk_r0_name,
356 const u8 *r1kh_id, const u8 *s1kh_id,
357 u8 *pmk_r1, u8 *pmk_r1_name);
358 int wpa_pmk_r1_to_ptk(const u8 *pmk_r1, const u8 *snonce, const u8 *anonce,
359 const u8 *sta_addr, const u8 *bssid,
360 const u8 *pmk_r1_name,
361 struct wpa_ptk *ptk, u8 *ptk_name, int akmp, int cipher);
362 #endif /* CONFIG_IEEE80211R */
363
364 struct wpa_ie_data {
365 int proto;
366 int pairwise_cipher;
367 int group_cipher;
368 int key_mgmt;
369 int capabilities;
370 size_t num_pmkid;
371 const u8 *pmkid;
372 int mgmt_group_cipher;
373 };
374
375
376 int wpa_parse_wpa_ie_rsn(const u8 *rsn_ie, size_t rsn_ie_len,
377 struct wpa_ie_data *data);
378 int wpa_parse_wpa_ie_wpa(const u8 *wpa_ie, size_t wpa_ie_len,
379 struct wpa_ie_data *data);
380
381 void rsn_pmkid(const u8 *pmk, size_t pmk_len, const u8 *aa, const u8 *spa,
382 u8 *pmkid, int use_sha256);
383 #ifdef CONFIG_SUITEB
384 int rsn_pmkid_suite_b(const u8 *kck, size_t kck_len, const u8 *aa,
385 const u8 *spa, u8 *pmkid);
386 #else /* CONFIG_SUITEB */
rsn_pmkid_suite_b(const u8 * kck,size_t kck_len,const u8 * aa,const u8 * spa,u8 * pmkid)387 static inline int rsn_pmkid_suite_b(const u8 *kck, size_t kck_len, const u8 *aa,
388 const u8 *spa, u8 *pmkid)
389 {
390 return -1;
391 }
392 #endif /* CONFIG_SUITEB */
393 #ifdef CONFIG_SUITEB192
394 int rsn_pmkid_suite_b_192(const u8 *kck, size_t kck_len, const u8 *aa,
395 const u8 *spa, u8 *pmkid);
396 #else /* CONFIG_SUITEB192 */
rsn_pmkid_suite_b_192(const u8 * kck,size_t kck_len,const u8 * aa,const u8 * spa,u8 * pmkid)397 static inline int rsn_pmkid_suite_b_192(const u8 *kck, size_t kck_len,
398 const u8 *aa, const u8 *spa, u8 *pmkid)
399 {
400 return -1;
401 }
402 #endif /* CONFIG_SUITEB192 */
403
404 const char * wpa_cipher_txt(int cipher);
405 const char * wpa_key_mgmt_txt(int key_mgmt, int proto);
406 u32 wpa_akm_to_suite(int akm);
407 int wpa_compare_rsn_ie(int ft_initial_assoc,
408 const u8 *ie1, size_t ie1len,
409 const u8 *ie2, size_t ie2len);
410 int wpa_insert_pmkid(u8 *ies, size_t ies_len, const u8 *pmkid);
411
412 struct wpa_ft_ies {
413 const u8 *mdie;
414 size_t mdie_len;
415 const u8 *ftie;
416 size_t ftie_len;
417 const u8 *r1kh_id;
418 const u8 *gtk;
419 size_t gtk_len;
420 const u8 *r0kh_id;
421 size_t r0kh_id_len;
422 const u8 *rsn;
423 size_t rsn_len;
424 const u8 *rsn_pmkid;
425 const u8 *tie;
426 size_t tie_len;
427 const u8 *igtk;
428 size_t igtk_len;
429 const u8 *ric;
430 size_t ric_len;
431 };
432
433 int wpa_ft_parse_ies(const u8 *ies, size_t ies_len, struct wpa_ft_ies *parse);
434
435 int wpa_cipher_key_len(int cipher);
436 int wpa_cipher_rsc_len(int cipher);
437 int wpa_cipher_to_alg(int cipher);
438 int wpa_cipher_valid_pairwise(int cipher);
439 int wpa_cipher_valid_mgmt_group(int cipher);
440 u32 wpa_cipher_to_suite(int proto, int cipher);
441 int rsn_cipher_put_suites(u8 *pos, int ciphers);
442 int wpa_cipher_put_suites(u8 *pos, int ciphers);
443 int wpa_pick_pairwise_cipher(int ciphers, int none_allowed);
444 int wpa_pick_group_cipher(int ciphers);
445 int wpa_parse_cipher(const char *value);
446 int wpa_write_ciphers(char *start, char *end, int ciphers, const char *delim);
447 int wpa_select_ap_group_cipher(int wpa, int wpa_pairwise, int rsn_pairwise);
448 unsigned int wpa_mic_len(int akmp);
449
450 #endif /* WPA_COMMON_H */
451