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Commit | Line | Data |
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afc064fe JM |
1 | /* |
2 | * Interworking (IEEE 802.11u) | |
1a712d2f | 3 | * Copyright (c) 2011-2012, Qualcomm Atheros, Inc. |
afc064fe | 4 | * |
e22d4d95 JM |
5 | * This software may be distributed under the terms of the BSD license. |
6 | * See README for more details. | |
afc064fe JM |
7 | */ |
8 | ||
9 | #include "includes.h" | |
10 | ||
11 | #include "common.h" | |
12 | #include "common/ieee802_11_defs.h" | |
13 | #include "common/gas.h" | |
b02fe7ff | 14 | #include "common/wpa_ctrl.h" |
7f41c92b | 15 | #include "utils/pcsc_funcs.h" |
d1ec319f | 16 | #include "utils/eloop.h" |
afc064fe | 17 | #include "drivers/driver.h" |
73c41a8f | 18 | #include "eap_common/eap_defs.h" |
8ca93c59 | 19 | #include "eap_peer/eap.h" |
67e1b984 | 20 | #include "eap_peer/eap_methods.h" |
afc064fe | 21 | #include "wpa_supplicant_i.h" |
73c41a8f | 22 | #include "config.h" |
5ed7880d | 23 | #include "config_ssid.h" |
afc064fe | 24 | #include "bss.h" |
b02fe7ff | 25 | #include "scan.h" |
67e1b984 | 26 | #include "notify.h" |
afc064fe | 27 | #include "gas_query.h" |
2249d714 | 28 | #include "hs20_supplicant.h" |
afc064fe JM |
29 | #include "interworking.h" |
30 | ||
31 | ||
3b840b67 JM |
32 | #if defined(EAP_SIM) | defined(EAP_SIM_DYNAMIC) |
33 | #define INTERWORKING_3GPP | |
34 | #else | |
35 | #if defined(EAP_AKA) | defined(EAP_AKA_DYNAMIC) | |
36 | #define INTERWORKING_3GPP | |
37 | #else | |
38 | #if defined(EAP_AKA_PRIME) | defined(EAP_AKA_PRIME_DYNAMIC) | |
39 | #define INTERWORKING_3GPP | |
40 | #endif | |
41 | #endif | |
42 | #endif | |
43 | ||
afc064fe JM |
44 | static void interworking_next_anqp_fetch(struct wpa_supplicant *wpa_s); |
45 | ||
46 | ||
08410f08 JM |
47 | static void interworking_reconnect(struct wpa_supplicant *wpa_s) |
48 | { | |
49 | if (wpa_s->wpa_state >= WPA_AUTHENTICATING) { | |
50 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
51 | wpa_supplicant_deauthenticate(wpa_s, | |
52 | WLAN_REASON_DEAUTH_LEAVING); | |
53 | } | |
54 | wpa_s->disconnected = 0; | |
55 | wpa_s->reassociate = 1; | |
a594e2a9 JM |
56 | |
57 | if (wpa_s->last_scan_res_used > 0) { | |
58 | struct os_time now; | |
59 | os_get_time(&now); | |
60 | if (now.sec - wpa_s->last_scan.sec <= 5) { | |
61 | wpa_printf(MSG_DEBUG, "Interworking: Old scan results " | |
62 | "are fresh - connect without new scan"); | |
0dd54313 | 63 | if (wpas_select_network_from_last_scan(wpa_s) >= 0) |
a594e2a9 JM |
64 | return; |
65 | } | |
66 | } | |
67 | ||
08410f08 JM |
68 | wpa_supplicant_req_scan(wpa_s, 0, 0); |
69 | } | |
70 | ||
71 | ||
afc064fe JM |
72 | static struct wpabuf * anqp_build_req(u16 info_ids[], size_t num_ids, |
73 | struct wpabuf *extra) | |
74 | { | |
75 | struct wpabuf *buf; | |
76 | size_t i; | |
77 | u8 *len_pos; | |
78 | ||
79 | buf = gas_anqp_build_initial_req(0, 4 + num_ids * 2 + | |
80 | (extra ? wpabuf_len(extra) : 0)); | |
81 | if (buf == NULL) | |
82 | return NULL; | |
83 | ||
84 | len_pos = gas_anqp_add_element(buf, ANQP_QUERY_LIST); | |
85 | for (i = 0; i < num_ids; i++) | |
86 | wpabuf_put_le16(buf, info_ids[i]); | |
87 | gas_anqp_set_element_len(buf, len_pos); | |
88 | if (extra) | |
89 | wpabuf_put_buf(buf, extra); | |
90 | ||
91 | gas_anqp_set_len(buf); | |
92 | ||
93 | return buf; | |
94 | } | |
95 | ||
96 | ||
97 | static void interworking_anqp_resp_cb(void *ctx, const u8 *dst, | |
98 | u8 dialog_token, | |
99 | enum gas_query_result result, | |
100 | const struct wpabuf *adv_proto, | |
101 | const struct wpabuf *resp, | |
102 | u16 status_code) | |
103 | { | |
104 | struct wpa_supplicant *wpa_s = ctx; | |
105 | ||
106 | anqp_resp_cb(wpa_s, dst, dialog_token, result, adv_proto, resp, | |
107 | status_code); | |
108 | interworking_next_anqp_fetch(wpa_s); | |
109 | } | |
110 | ||
111 | ||
7ff83367 JM |
112 | static int cred_with_roaming_consortium(struct wpa_supplicant *wpa_s) |
113 | { | |
114 | struct wpa_cred *cred; | |
115 | ||
116 | for (cred = wpa_s->conf->cred; cred; cred = cred->next) { | |
117 | if (cred->roaming_consortium_len) | |
118 | return 1; | |
119 | } | |
120 | return 0; | |
121 | } | |
122 | ||
123 | ||
124 | static int cred_with_3gpp(struct wpa_supplicant *wpa_s) | |
125 | { | |
126 | struct wpa_cred *cred; | |
127 | ||
128 | for (cred = wpa_s->conf->cred; cred; cred = cred->next) { | |
129 | if (cred->pcsc || cred->imsi) | |
130 | return 1; | |
131 | } | |
132 | return 0; | |
133 | } | |
134 | ||
135 | ||
136 | static int cred_with_nai_realm(struct wpa_supplicant *wpa_s) | |
137 | { | |
138 | struct wpa_cred *cred; | |
139 | ||
140 | for (cred = wpa_s->conf->cred; cred; cred = cred->next) { | |
141 | if (cred->pcsc || cred->imsi) | |
142 | continue; | |
143 | if (!cred->eap_method) | |
144 | return 1; | |
145 | if (cred->realm && cred->roaming_consortium_len == 0) | |
146 | return 1; | |
147 | } | |
148 | return 0; | |
149 | } | |
150 | ||
151 | ||
152 | static int cred_with_domain(struct wpa_supplicant *wpa_s) | |
153 | { | |
154 | struct wpa_cred *cred; | |
155 | ||
156 | for (cred = wpa_s->conf->cred; cred; cred = cred->next) { | |
157 | if (cred->domain || cred->pcsc || cred->imsi) | |
158 | return 1; | |
159 | } | |
160 | return 0; | |
161 | } | |
162 | ||
163 | ||
164 | static int additional_roaming_consortiums(struct wpa_bss *bss) | |
165 | { | |
166 | const u8 *ie; | |
167 | ie = wpa_bss_get_ie(bss, WLAN_EID_ROAMING_CONSORTIUM); | |
168 | if (ie == NULL || ie[1] == 0) | |
169 | return 0; | |
170 | return ie[2]; /* Number of ANQP OIs */ | |
171 | } | |
172 | ||
173 | ||
d1ec319f JM |
174 | static void interworking_continue_anqp(void *eloop_ctx, void *sock_ctx) |
175 | { | |
176 | struct wpa_supplicant *wpa_s = eloop_ctx; | |
177 | interworking_next_anqp_fetch(wpa_s); | |
178 | } | |
179 | ||
180 | ||
afc064fe JM |
181 | static int interworking_anqp_send_req(struct wpa_supplicant *wpa_s, |
182 | struct wpa_bss *bss) | |
183 | { | |
184 | struct wpabuf *buf; | |
185 | int ret = 0; | |
186 | int res; | |
7ff83367 JM |
187 | u16 info_ids[8]; |
188 | size_t num_info_ids = 0; | |
afc064fe | 189 | struct wpabuf *extra = NULL; |
7ff83367 | 190 | int all = wpa_s->fetch_all_anqp; |
afc064fe JM |
191 | |
192 | wpa_printf(MSG_DEBUG, "Interworking: ANQP Query Request to " MACSTR, | |
193 | MAC2STR(bss->bssid)); | |
194 | ||
7ff83367 JM |
195 | info_ids[num_info_ids++] = ANQP_CAPABILITY_LIST; |
196 | if (all) { | |
197 | info_ids[num_info_ids++] = ANQP_VENUE_NAME; | |
198 | info_ids[num_info_ids++] = ANQP_NETWORK_AUTH_TYPE; | |
199 | } | |
200 | if (all || (cred_with_roaming_consortium(wpa_s) && | |
201 | additional_roaming_consortiums(bss))) | |
202 | info_ids[num_info_ids++] = ANQP_ROAMING_CONSORTIUM; | |
203 | if (all) | |
204 | info_ids[num_info_ids++] = ANQP_IP_ADDR_TYPE_AVAILABILITY; | |
205 | if (all || cred_with_nai_realm(wpa_s)) | |
206 | info_ids[num_info_ids++] = ANQP_NAI_REALM; | |
207 | if (all || cred_with_3gpp(wpa_s)) | |
208 | info_ids[num_info_ids++] = ANQP_3GPP_CELLULAR_NETWORK; | |
209 | if (all || cred_with_domain(wpa_s)) | |
210 | info_ids[num_info_ids++] = ANQP_DOMAIN_NAME; | |
211 | wpa_hexdump(MSG_DEBUG, "Interworking: ANQP Query info", | |
212 | (u8 *) info_ids, num_info_ids * 2); | |
213 | ||
2249d714 JM |
214 | #ifdef CONFIG_HS20 |
215 | if (wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE)) { | |
216 | u8 *len_pos; | |
217 | ||
218 | extra = wpabuf_alloc(100); | |
219 | if (!extra) | |
220 | return -1; | |
221 | ||
222 | len_pos = gas_anqp_add_element(extra, ANQP_VENDOR_SPECIFIC); | |
223 | wpabuf_put_be24(extra, OUI_WFA); | |
224 | wpabuf_put_u8(extra, HS20_ANQP_OUI_TYPE); | |
225 | wpabuf_put_u8(extra, HS20_STYPE_QUERY_LIST); | |
226 | wpabuf_put_u8(extra, 0); /* Reserved */ | |
227 | wpabuf_put_u8(extra, HS20_STYPE_CAPABILITY_LIST); | |
7ff83367 JM |
228 | if (all) { |
229 | wpabuf_put_u8(extra, | |
230 | HS20_STYPE_OPERATOR_FRIENDLY_NAME); | |
231 | wpabuf_put_u8(extra, HS20_STYPE_WAN_METRICS); | |
232 | wpabuf_put_u8(extra, HS20_STYPE_CONNECTION_CAPABILITY); | |
233 | wpabuf_put_u8(extra, HS20_STYPE_OPERATING_CLASS); | |
234 | } | |
2249d714 JM |
235 | gas_anqp_set_element_len(extra, len_pos); |
236 | } | |
237 | #endif /* CONFIG_HS20 */ | |
238 | ||
7ff83367 | 239 | buf = anqp_build_req(info_ids, num_info_ids, extra); |
afc064fe JM |
240 | wpabuf_free(extra); |
241 | if (buf == NULL) | |
242 | return -1; | |
243 | ||
244 | res = gas_query_req(wpa_s->gas, bss->bssid, bss->freq, buf, | |
245 | interworking_anqp_resp_cb, wpa_s); | |
246 | if (res < 0) { | |
247 | wpa_printf(MSG_DEBUG, "ANQP: Failed to send Query Request"); | |
248 | ret = -1; | |
d1ec319f JM |
249 | eloop_register_timeout(0, 0, interworking_continue_anqp, wpa_s, |
250 | NULL); | |
afc064fe JM |
251 | } else |
252 | wpa_printf(MSG_DEBUG, "ANQP: Query started with dialog token " | |
253 | "%u", res); | |
254 | ||
255 | wpabuf_free(buf); | |
256 | return ret; | |
257 | } | |
258 | ||
259 | ||
73c41a8f JM |
260 | struct nai_realm_eap { |
261 | u8 method; | |
262 | u8 inner_method; | |
263 | enum nai_realm_eap_auth_inner_non_eap inner_non_eap; | |
264 | u8 cred_type; | |
265 | u8 tunneled_cred_type; | |
266 | }; | |
267 | ||
268 | struct nai_realm { | |
269 | u8 encoding; | |
270 | char *realm; | |
271 | u8 eap_count; | |
272 | struct nai_realm_eap *eap; | |
273 | }; | |
274 | ||
275 | ||
276 | static void nai_realm_free(struct nai_realm *realms, u16 count) | |
277 | { | |
278 | u16 i; | |
279 | ||
280 | if (realms == NULL) | |
281 | return; | |
282 | for (i = 0; i < count; i++) { | |
283 | os_free(realms[i].eap); | |
284 | os_free(realms[i].realm); | |
285 | } | |
286 | os_free(realms); | |
287 | } | |
288 | ||
289 | ||
290 | static const u8 * nai_realm_parse_eap(struct nai_realm_eap *e, const u8 *pos, | |
291 | const u8 *end) | |
292 | { | |
293 | u8 elen, auth_count, a; | |
294 | const u8 *e_end; | |
295 | ||
296 | if (pos + 3 > end) { | |
297 | wpa_printf(MSG_DEBUG, "No room for EAP Method fixed fields"); | |
298 | return NULL; | |
299 | } | |
300 | ||
301 | elen = *pos++; | |
302 | if (pos + elen > end || elen < 2) { | |
303 | wpa_printf(MSG_DEBUG, "No room for EAP Method subfield"); | |
304 | return NULL; | |
305 | } | |
306 | e_end = pos + elen; | |
307 | e->method = *pos++; | |
308 | auth_count = *pos++; | |
309 | wpa_printf(MSG_DEBUG, "EAP Method: len=%u method=%u auth_count=%u", | |
310 | elen, e->method, auth_count); | |
311 | ||
312 | for (a = 0; a < auth_count; a++) { | |
313 | u8 id, len; | |
314 | ||
315 | if (pos + 2 > end || pos + 2 + pos[1] > end) { | |
316 | wpa_printf(MSG_DEBUG, "No room for Authentication " | |
317 | "Parameter subfield"); | |
318 | return NULL; | |
319 | } | |
320 | ||
321 | id = *pos++; | |
322 | len = *pos++; | |
323 | ||
324 | switch (id) { | |
325 | case NAI_REALM_EAP_AUTH_NON_EAP_INNER_AUTH: | |
326 | if (len < 1) | |
327 | break; | |
328 | e->inner_non_eap = *pos; | |
329 | if (e->method != EAP_TYPE_TTLS) | |
330 | break; | |
331 | switch (*pos) { | |
332 | case NAI_REALM_INNER_NON_EAP_PAP: | |
333 | wpa_printf(MSG_DEBUG, "EAP-TTLS/PAP"); | |
334 | break; | |
335 | case NAI_REALM_INNER_NON_EAP_CHAP: | |
336 | wpa_printf(MSG_DEBUG, "EAP-TTLS/CHAP"); | |
337 | break; | |
338 | case NAI_REALM_INNER_NON_EAP_MSCHAP: | |
339 | wpa_printf(MSG_DEBUG, "EAP-TTLS/MSCHAP"); | |
340 | break; | |
341 | case NAI_REALM_INNER_NON_EAP_MSCHAPV2: | |
342 | wpa_printf(MSG_DEBUG, "EAP-TTLS/MSCHAPV2"); | |
343 | break; | |
344 | } | |
345 | break; | |
346 | case NAI_REALM_EAP_AUTH_INNER_AUTH_EAP_METHOD: | |
347 | if (len < 1) | |
348 | break; | |
349 | e->inner_method = *pos; | |
350 | wpa_printf(MSG_DEBUG, "Inner EAP method: %u", | |
351 | e->inner_method); | |
352 | break; | |
353 | case NAI_REALM_EAP_AUTH_CRED_TYPE: | |
354 | if (len < 1) | |
355 | break; | |
356 | e->cred_type = *pos; | |
357 | wpa_printf(MSG_DEBUG, "Credential Type: %u", | |
358 | e->cred_type); | |
359 | break; | |
360 | case NAI_REALM_EAP_AUTH_TUNNELED_CRED_TYPE: | |
361 | if (len < 1) | |
362 | break; | |
363 | e->tunneled_cred_type = *pos; | |
364 | wpa_printf(MSG_DEBUG, "Tunneled EAP Method Credential " | |
365 | "Type: %u", e->tunneled_cred_type); | |
366 | break; | |
367 | default: | |
368 | wpa_printf(MSG_DEBUG, "Unsupported Authentication " | |
369 | "Parameter: id=%u len=%u", id, len); | |
370 | wpa_hexdump(MSG_DEBUG, "Authentication Parameter " | |
371 | "Value", pos, len); | |
372 | break; | |
373 | } | |
374 | ||
375 | pos += len; | |
376 | } | |
377 | ||
378 | return e_end; | |
379 | } | |
380 | ||
381 | ||
382 | static const u8 * nai_realm_parse_realm(struct nai_realm *r, const u8 *pos, | |
383 | const u8 *end) | |
384 | { | |
385 | u16 len; | |
386 | const u8 *f_end; | |
387 | u8 realm_len, e; | |
388 | ||
389 | if (end - pos < 4) { | |
390 | wpa_printf(MSG_DEBUG, "No room for NAI Realm Data " | |
391 | "fixed fields"); | |
392 | return NULL; | |
393 | } | |
394 | ||
395 | len = WPA_GET_LE16(pos); /* NAI Realm Data field Length */ | |
396 | pos += 2; | |
397 | if (pos + len > end || len < 3) { | |
398 | wpa_printf(MSG_DEBUG, "No room for NAI Realm Data " | |
399 | "(len=%u; left=%u)", | |
400 | len, (unsigned int) (end - pos)); | |
401 | return NULL; | |
402 | } | |
403 | f_end = pos + len; | |
404 | ||
405 | r->encoding = *pos++; | |
406 | realm_len = *pos++; | |
407 | if (pos + realm_len > f_end) { | |
408 | wpa_printf(MSG_DEBUG, "No room for NAI Realm " | |
409 | "(len=%u; left=%u)", | |
410 | realm_len, (unsigned int) (f_end - pos)); | |
411 | return NULL; | |
412 | } | |
413 | wpa_hexdump_ascii(MSG_DEBUG, "NAI Realm", pos, realm_len); | |
414 | r->realm = os_malloc(realm_len + 1); | |
415 | if (r->realm == NULL) | |
416 | return NULL; | |
417 | os_memcpy(r->realm, pos, realm_len); | |
418 | r->realm[realm_len] = '\0'; | |
419 | pos += realm_len; | |
420 | ||
421 | if (pos + 1 > f_end) { | |
422 | wpa_printf(MSG_DEBUG, "No room for EAP Method Count"); | |
423 | return NULL; | |
424 | } | |
425 | r->eap_count = *pos++; | |
426 | wpa_printf(MSG_DEBUG, "EAP Count: %u", r->eap_count); | |
427 | if (pos + r->eap_count * 3 > f_end) { | |
428 | wpa_printf(MSG_DEBUG, "No room for EAP Methods"); | |
429 | return NULL; | |
430 | } | |
f9884c09 | 431 | r->eap = os_calloc(r->eap_count, sizeof(struct nai_realm_eap)); |
73c41a8f JM |
432 | if (r->eap == NULL) |
433 | return NULL; | |
434 | ||
435 | for (e = 0; e < r->eap_count; e++) { | |
436 | pos = nai_realm_parse_eap(&r->eap[e], pos, f_end); | |
437 | if (pos == NULL) | |
438 | return NULL; | |
439 | } | |
440 | ||
441 | return f_end; | |
442 | } | |
443 | ||
444 | ||
445 | static struct nai_realm * nai_realm_parse(struct wpabuf *anqp, u16 *count) | |
446 | { | |
447 | struct nai_realm *realm; | |
448 | const u8 *pos, *end; | |
449 | u16 i, num; | |
450 | ||
451 | if (anqp == NULL || wpabuf_len(anqp) < 2) | |
452 | return NULL; | |
453 | ||
454 | pos = wpabuf_head_u8(anqp); | |
455 | end = pos + wpabuf_len(anqp); | |
456 | num = WPA_GET_LE16(pos); | |
457 | wpa_printf(MSG_DEBUG, "NAI Realm Count: %u", num); | |
458 | pos += 2; | |
459 | ||
460 | if (num * 5 > end - pos) { | |
461 | wpa_printf(MSG_DEBUG, "Invalid NAI Realm Count %u - not " | |
462 | "enough data (%u octets) for that many realms", | |
463 | num, (unsigned int) (end - pos)); | |
464 | return NULL; | |
465 | } | |
466 | ||
f9884c09 | 467 | realm = os_calloc(num, sizeof(struct nai_realm)); |
73c41a8f JM |
468 | if (realm == NULL) |
469 | return NULL; | |
470 | ||
471 | for (i = 0; i < num; i++) { | |
472 | pos = nai_realm_parse_realm(&realm[i], pos, end); | |
473 | if (pos == NULL) { | |
474 | nai_realm_free(realm, num); | |
475 | return NULL; | |
476 | } | |
477 | } | |
478 | ||
479 | *count = num; | |
480 | return realm; | |
481 | } | |
482 | ||
483 | ||
484 | static int nai_realm_match(struct nai_realm *realm, const char *home_realm) | |
485 | { | |
486 | char *tmp, *pos, *end; | |
487 | int match = 0; | |
488 | ||
3b840b67 | 489 | if (realm->realm == NULL || home_realm == NULL) |
73c41a8f JM |
490 | return 0; |
491 | ||
492 | if (os_strchr(realm->realm, ';') == NULL) | |
493 | return os_strcasecmp(realm->realm, home_realm) == 0; | |
494 | ||
495 | tmp = os_strdup(realm->realm); | |
496 | if (tmp == NULL) | |
497 | return 0; | |
498 | ||
499 | pos = tmp; | |
500 | while (*pos) { | |
501 | end = os_strchr(pos, ';'); | |
502 | if (end) | |
503 | *end = '\0'; | |
504 | if (os_strcasecmp(pos, home_realm) == 0) { | |
505 | match = 1; | |
506 | break; | |
507 | } | |
508 | if (end == NULL) | |
509 | break; | |
510 | pos = end + 1; | |
511 | } | |
512 | ||
513 | os_free(tmp); | |
514 | ||
515 | return match; | |
516 | } | |
517 | ||
518 | ||
67e1b984 JM |
519 | static int nai_realm_cred_username(struct nai_realm_eap *eap) |
520 | { | |
521 | if (eap_get_name(EAP_VENDOR_IETF, eap->method) == NULL) | |
522 | return 0; /* method not supported */ | |
523 | ||
524 | if (eap->method != EAP_TYPE_TTLS && eap->method != EAP_TYPE_PEAP) { | |
525 | /* Only tunneled methods with username/password supported */ | |
526 | return 0; | |
527 | } | |
528 | ||
03c961e5 JM |
529 | if (eap->method == EAP_TYPE_PEAP) { |
530 | if (eap->inner_method && | |
531 | eap_get_name(EAP_VENDOR_IETF, eap->inner_method) == NULL) | |
532 | return 0; | |
533 | if (!eap->inner_method && | |
534 | eap_get_name(EAP_VENDOR_IETF, EAP_TYPE_MSCHAPV2) == NULL) | |
535 | return 0; | |
536 | } | |
67e1b984 JM |
537 | |
538 | if (eap->method == EAP_TYPE_TTLS) { | |
539 | if (eap->inner_method == 0 && eap->inner_non_eap == 0) | |
2047e596 | 540 | return 1; /* Assume TTLS/MSCHAPv2 is used */ |
67e1b984 JM |
541 | if (eap->inner_method && |
542 | eap_get_name(EAP_VENDOR_IETF, eap->inner_method) == NULL) | |
543 | return 0; | |
544 | if (eap->inner_non_eap && | |
545 | eap->inner_non_eap != NAI_REALM_INNER_NON_EAP_PAP && | |
546 | eap->inner_non_eap != NAI_REALM_INNER_NON_EAP_CHAP && | |
547 | eap->inner_non_eap != NAI_REALM_INNER_NON_EAP_MSCHAP && | |
548 | eap->inner_non_eap != NAI_REALM_INNER_NON_EAP_MSCHAPV2) | |
549 | return 0; | |
550 | } | |
551 | ||
552 | if (eap->inner_method && | |
553 | eap->inner_method != EAP_TYPE_GTC && | |
554 | eap->inner_method != EAP_TYPE_MSCHAPV2) | |
555 | return 0; | |
556 | ||
557 | return 1; | |
558 | } | |
559 | ||
560 | ||
11e4f46a JM |
561 | static int nai_realm_cred_cert(struct nai_realm_eap *eap) |
562 | { | |
563 | if (eap_get_name(EAP_VENDOR_IETF, eap->method) == NULL) | |
564 | return 0; /* method not supported */ | |
565 | ||
566 | if (eap->method != EAP_TYPE_TLS) { | |
567 | /* Only EAP-TLS supported for credential authentication */ | |
568 | return 0; | |
569 | } | |
570 | ||
571 | return 1; | |
572 | } | |
573 | ||
574 | ||
1bb7b8e8 | 575 | static struct nai_realm_eap * nai_realm_find_eap(struct wpa_cred *cred, |
19df9b07 | 576 | struct nai_realm *realm) |
67e1b984 JM |
577 | { |
578 | u8 e; | |
579 | ||
1bb7b8e8 JM |
580 | if (cred == NULL || |
581 | cred->username == NULL || | |
582 | cred->username[0] == '\0' || | |
11e4f46a JM |
583 | ((cred->password == NULL || |
584 | cred->password[0] == '\0') && | |
585 | (cred->private_key == NULL || | |
586 | cred->private_key[0] == '\0'))) | |
67e1b984 JM |
587 | return NULL; |
588 | ||
589 | for (e = 0; e < realm->eap_count; e++) { | |
590 | struct nai_realm_eap *eap = &realm->eap[e]; | |
11e4f46a JM |
591 | if (cred->password && cred->password[0] && |
592 | nai_realm_cred_username(eap)) | |
593 | return eap; | |
594 | if (cred->private_key && cred->private_key[0] && | |
595 | nai_realm_cred_cert(eap)) | |
67e1b984 JM |
596 | return eap; |
597 | } | |
598 | ||
599 | return NULL; | |
600 | } | |
601 | ||
602 | ||
3b840b67 JM |
603 | #ifdef INTERWORKING_3GPP |
604 | ||
c21246f5 | 605 | static int plmn_id_match(struct wpabuf *anqp, const char *imsi, int mnc_len) |
3b840b67 | 606 | { |
3b840b67 JM |
607 | u8 plmn[3]; |
608 | const u8 *pos, *end; | |
609 | u8 udhl; | |
610 | ||
3b840b67 JM |
611 | /* See Annex A of 3GPP TS 24.234 v8.1.0 for description */ |
612 | plmn[0] = (imsi[0] - '0') | ((imsi[1] - '0') << 4); | |
613 | plmn[1] = imsi[2] - '0'; | |
c21246f5 JM |
614 | /* default to MNC length 3 if unknown */ |
615 | if (mnc_len != 2) | |
3b840b67 JM |
616 | plmn[1] |= (imsi[5] - '0') << 4; |
617 | else | |
618 | plmn[1] |= 0xf0; | |
619 | plmn[2] = (imsi[3] - '0') | ((imsi[4] - '0') << 4); | |
620 | ||
621 | if (anqp == NULL) | |
622 | return 0; | |
623 | pos = wpabuf_head_u8(anqp); | |
624 | end = pos + wpabuf_len(anqp); | |
625 | if (pos + 2 > end) | |
626 | return 0; | |
627 | if (*pos != 0) { | |
628 | wpa_printf(MSG_DEBUG, "Unsupported GUD version 0x%x", *pos); | |
629 | return 0; | |
630 | } | |
631 | pos++; | |
632 | udhl = *pos++; | |
633 | if (pos + udhl > end) { | |
634 | wpa_printf(MSG_DEBUG, "Invalid UDHL"); | |
635 | return 0; | |
636 | } | |
637 | end = pos + udhl; | |
638 | ||
639 | while (pos + 2 <= end) { | |
640 | u8 iei, len; | |
641 | const u8 *l_end; | |
642 | iei = *pos++; | |
643 | len = *pos++ & 0x7f; | |
644 | if (pos + len > end) | |
645 | break; | |
646 | l_end = pos + len; | |
647 | ||
648 | if (iei == 0 && len > 0) { | |
649 | /* PLMN List */ | |
650 | u8 num, i; | |
651 | num = *pos++; | |
652 | for (i = 0; i < num; i++) { | |
653 | if (pos + 3 > end) | |
654 | break; | |
655 | if (os_memcmp(pos, plmn, 3) == 0) | |
656 | return 1; /* Found matching PLMN */ | |
8f234012 | 657 | pos += 3; |
3b840b67 JM |
658 | } |
659 | } | |
660 | ||
661 | pos = l_end; | |
662 | } | |
663 | ||
664 | return 0; | |
665 | } | |
666 | ||
667 | ||
d8e59fea | 668 | static int build_root_nai(char *nai, size_t nai_len, const char *imsi, |
632c9458 | 669 | size_t mnc_len, char prefix) |
3b840b67 JM |
670 | { |
671 | const char *sep, *msin; | |
9914c96f | 672 | char *end, *pos; |
3b840b67 JM |
673 | size_t msin_len, plmn_len; |
674 | ||
675 | /* | |
676 | * TS 23.003, Clause 14 (3GPP to WLAN Interworking) | |
677 | * Root NAI: | |
678 | * <aka:0|sim:1><IMSI>@wlan.mnc<MNC>.mcc<MCC>.3gppnetwork.org | |
679 | * <MNC> is zero-padded to three digits in case two-digit MNC is used | |
680 | */ | |
681 | ||
682 | if (imsi == NULL || os_strlen(imsi) > 16) { | |
683 | wpa_printf(MSG_DEBUG, "No valid IMSI available"); | |
684 | return -1; | |
685 | } | |
686 | sep = os_strchr(imsi, '-'); | |
632c9458 JM |
687 | if (sep) { |
688 | plmn_len = sep - imsi; | |
689 | msin = sep + 1; | |
690 | } else if (mnc_len && os_strlen(imsi) >= 3 + mnc_len) { | |
691 | plmn_len = 3 + mnc_len; | |
692 | msin = imsi + plmn_len; | |
693 | } else | |
3b840b67 | 694 | return -1; |
3b840b67 JM |
695 | if (plmn_len != 5 && plmn_len != 6) |
696 | return -1; | |
3b840b67 JM |
697 | msin_len = os_strlen(msin); |
698 | ||
699 | pos = nai; | |
d8e59fea | 700 | end = nai + nai_len; |
9914c96f JM |
701 | if (prefix) |
702 | *pos++ = prefix; | |
3b840b67 JM |
703 | os_memcpy(pos, imsi, plmn_len); |
704 | pos += plmn_len; | |
705 | os_memcpy(pos, msin, msin_len); | |
706 | pos += msin_len; | |
707 | pos += os_snprintf(pos, end - pos, "@wlan.mnc"); | |
708 | if (plmn_len == 5) { | |
709 | *pos++ = '0'; | |
710 | *pos++ = imsi[3]; | |
711 | *pos++ = imsi[4]; | |
712 | } else { | |
713 | *pos++ = imsi[3]; | |
714 | *pos++ = imsi[4]; | |
715 | *pos++ = imsi[5]; | |
716 | } | |
717 | pos += os_snprintf(pos, end - pos, ".mcc%c%c%c.3gppnetwork.org", | |
718 | imsi[0], imsi[1], imsi[2]); | |
719 | ||
9914c96f JM |
720 | return 0; |
721 | } | |
722 | ||
723 | ||
724 | static int set_root_nai(struct wpa_ssid *ssid, const char *imsi, char prefix) | |
725 | { | |
726 | char nai[100]; | |
632c9458 | 727 | if (build_root_nai(nai, sizeof(nai), imsi, 0, prefix) < 0) |
9914c96f | 728 | return -1; |
3b840b67 JM |
729 | return wpa_config_set_quoted(ssid, "identity", nai); |
730 | } | |
731 | ||
732 | #endif /* INTERWORKING_3GPP */ | |
733 | ||
734 | ||
3c8e4ec0 JM |
735 | static int interworking_set_hs20_params(struct wpa_supplicant *wpa_s, |
736 | struct wpa_ssid *ssid) | |
8601b503 | 737 | { |
3c8e4ec0 JM |
738 | if (wpa_config_set(ssid, "key_mgmt", |
739 | wpa_s->conf->pmf != NO_MGMT_FRAME_PROTECTION ? | |
740 | "WPA-EAP WPA-EAP-SHA256" : "WPA-EAP", 0) < 0) | |
8601b503 JM |
741 | return -1; |
742 | if (wpa_config_set(ssid, "proto", "RSN", 0) < 0) | |
743 | return -1; | |
744 | if (wpa_config_set(ssid, "pairwise", "CCMP", 0) < 0) | |
745 | return -1; | |
746 | return 0; | |
747 | } | |
748 | ||
749 | ||
3b840b67 JM |
750 | static int interworking_connect_3gpp(struct wpa_supplicant *wpa_s, |
751 | struct wpa_bss *bss) | |
752 | { | |
753 | #ifdef INTERWORKING_3GPP | |
1bb7b8e8 | 754 | struct wpa_cred *cred; |
3b840b67 JM |
755 | struct wpa_ssid *ssid; |
756 | const u8 *ie; | |
7e414b21 JM |
757 | int eap_type; |
758 | int res; | |
759 | char prefix; | |
3b840b67 | 760 | |
476aed35 | 761 | if (bss->anqp == NULL || bss->anqp->anqp_3gpp == NULL) |
1bb7b8e8 JM |
762 | return -1; |
763 | ||
764 | for (cred = wpa_s->conf->cred; cred; cred = cred->next) { | |
c21246f5 | 765 | char *sep; |
d7b01abd JM |
766 | const char *imsi; |
767 | int mnc_len; | |
768 | ||
769 | #ifdef PCSC_FUNCS | |
770 | if (cred->pcsc && wpa_s->conf->pcsc_reader && wpa_s->scard && | |
771 | wpa_s->imsi[0]) { | |
772 | imsi = wpa_s->imsi; | |
773 | mnc_len = wpa_s->mnc_len; | |
774 | goto compare; | |
775 | } | |
776 | #endif /* PCSC_FUNCS */ | |
c21246f5 | 777 | |
1bb7b8e8 JM |
778 | if (cred->imsi == NULL || !cred->imsi[0] || |
779 | cred->milenage == NULL || !cred->milenage[0]) | |
780 | continue; | |
c21246f5 JM |
781 | |
782 | sep = os_strchr(cred->imsi, '-'); | |
783 | if (sep == NULL || | |
784 | (sep - cred->imsi != 5 && sep - cred->imsi != 6)) | |
785 | continue; | |
d7b01abd JM |
786 | mnc_len = sep - cred->imsi - 3; |
787 | imsi = cred->imsi; | |
c21246f5 | 788 | |
d7b01abd JM |
789 | #ifdef PCSC_FUNCS |
790 | compare: | |
791 | #endif /* PCSC_FUNCS */ | |
476aed35 | 792 | if (plmn_id_match(bss->anqp->anqp_3gpp, imsi, mnc_len)) |
1bb7b8e8 JM |
793 | break; |
794 | } | |
795 | if (cred == NULL) | |
796 | return -1; | |
797 | ||
3b840b67 | 798 | ie = wpa_bss_get_ie(bss, WLAN_EID_SSID); |
dbfdb392 JM |
799 | if (ie == NULL) |
800 | return -1; | |
3b840b67 JM |
801 | wpa_printf(MSG_DEBUG, "Interworking: Connect with " MACSTR " (3GPP)", |
802 | MAC2STR(bss->bssid)); | |
803 | ||
804 | ssid = wpa_config_add_network(wpa_s->conf); | |
805 | if (ssid == NULL) | |
806 | return -1; | |
736d4f2d | 807 | ssid->parent_cred = cred; |
3b840b67 JM |
808 | |
809 | wpas_notify_network_added(wpa_s, ssid); | |
810 | wpa_config_set_network_defaults(ssid); | |
1a712d2f | 811 | ssid->priority = cred->priority; |
3b840b67 JM |
812 | ssid->temporary = 1; |
813 | ssid->ssid = os_zalloc(ie[1] + 1); | |
814 | if (ssid->ssid == NULL) | |
815 | goto fail; | |
816 | os_memcpy(ssid->ssid, ie + 2, ie[1]); | |
817 | ssid->ssid_len = ie[1]; | |
818 | ||
3c8e4ec0 | 819 | if (interworking_set_hs20_params(wpa_s, ssid) < 0) |
1ecd2ada JM |
820 | goto fail; |
821 | ||
7e414b21 JM |
822 | eap_type = EAP_TYPE_SIM; |
823 | if (cred->pcsc && wpa_s->scard && scard_supports_umts(wpa_s->scard)) | |
824 | eap_type = EAP_TYPE_AKA; | |
825 | if (cred->eap_method && cred->eap_method[0].vendor == EAP_VENDOR_IETF) { | |
826 | if (cred->eap_method[0].method == EAP_TYPE_SIM || | |
827 | cred->eap_method[0].method == EAP_TYPE_AKA || | |
828 | cred->eap_method[0].method == EAP_TYPE_AKA_PRIME) | |
829 | eap_type = cred->eap_method[0].method; | |
830 | } | |
831 | ||
832 | switch (eap_type) { | |
833 | case EAP_TYPE_SIM: | |
834 | prefix = '1'; | |
835 | res = wpa_config_set(ssid, "eap", "SIM", 0); | |
836 | break; | |
837 | case EAP_TYPE_AKA: | |
838 | prefix = '0'; | |
839 | res = wpa_config_set(ssid, "eap", "AKA", 0); | |
840 | break; | |
841 | case EAP_TYPE_AKA_PRIME: | |
842 | prefix = '6'; | |
843 | res = wpa_config_set(ssid, "eap", "AKA'", 0); | |
844 | break; | |
845 | default: | |
846 | res = -1; | |
847 | break; | |
848 | } | |
849 | if (res < 0) { | |
850 | wpa_printf(MSG_DEBUG, "Selected EAP method (%d) not supported", | |
851 | eap_type); | |
3b840b67 JM |
852 | goto fail; |
853 | } | |
7e414b21 JM |
854 | |
855 | if (!cred->pcsc && set_root_nai(ssid, cred->imsi, prefix) < 0) { | |
3b840b67 JM |
856 | wpa_printf(MSG_DEBUG, "Failed to set Root NAI"); |
857 | goto fail; | |
858 | } | |
859 | ||
1bb7b8e8 | 860 | if (cred->milenage && cred->milenage[0]) { |
3b840b67 | 861 | if (wpa_config_set_quoted(ssid, "password", |
1bb7b8e8 | 862 | cred->milenage) < 0) |
3b840b67 | 863 | goto fail; |
d7b01abd | 864 | } else if (cred->pcsc) { |
3b840b67 JM |
865 | if (wpa_config_set_quoted(ssid, "pcsc", "") < 0) |
866 | goto fail; | |
d7b01abd JM |
867 | if (wpa_s->conf->pcsc_pin && |
868 | wpa_config_set_quoted(ssid, "pin", wpa_s->conf->pcsc_pin) | |
869 | < 0) | |
870 | goto fail; | |
3b840b67 JM |
871 | } |
872 | ||
1bb7b8e8 JM |
873 | if (cred->password && cred->password[0] && |
874 | wpa_config_set_quoted(ssid, "password", cred->password) < 0) | |
3b840b67 JM |
875 | goto fail; |
876 | ||
1a712d2f | 877 | wpa_config_update_prio_list(wpa_s->conf); |
08410f08 | 878 | interworking_reconnect(wpa_s); |
3b840b67 JM |
879 | |
880 | return 0; | |
881 | ||
882 | fail: | |
883 | wpas_notify_network_removed(wpa_s, ssid); | |
884 | wpa_config_remove_network(wpa_s->conf, ssid->id); | |
885 | #endif /* INTERWORKING_3GPP */ | |
886 | return -1; | |
887 | } | |
888 | ||
889 | ||
955567bc JM |
890 | static int roaming_consortium_element_match(const u8 *ie, const u8 *rc_id, |
891 | size_t rc_len) | |
892 | { | |
893 | const u8 *pos, *end; | |
894 | u8 lens; | |
895 | ||
896 | if (ie == NULL) | |
897 | return 0; | |
898 | ||
899 | pos = ie + 2; | |
900 | end = ie + 2 + ie[1]; | |
901 | ||
902 | /* Roaming Consortium element: | |
903 | * Number of ANQP OIs | |
904 | * OI #1 and #2 lengths | |
905 | * OI #1, [OI #2], [OI #3] | |
906 | */ | |
907 | ||
908 | if (pos + 2 > end) | |
909 | return 0; | |
910 | ||
911 | pos++; /* skip Number of ANQP OIs */ | |
912 | lens = *pos++; | |
913 | if (pos + (lens & 0x0f) + (lens >> 4) > end) | |
914 | return 0; | |
915 | ||
916 | if ((lens & 0x0f) == rc_len && os_memcmp(pos, rc_id, rc_len) == 0) | |
917 | return 1; | |
918 | pos += lens & 0x0f; | |
919 | ||
920 | if ((lens >> 4) == rc_len && os_memcmp(pos, rc_id, rc_len) == 0) | |
921 | return 1; | |
922 | pos += lens >> 4; | |
923 | ||
924 | if (pos < end && (size_t) (end - pos) == rc_len && | |
925 | os_memcmp(pos, rc_id, rc_len) == 0) | |
926 | return 1; | |
927 | ||
928 | return 0; | |
929 | } | |
930 | ||
931 | ||
932 | static int roaming_consortium_anqp_match(const struct wpabuf *anqp, | |
933 | const u8 *rc_id, size_t rc_len) | |
934 | { | |
935 | const u8 *pos, *end; | |
936 | u8 len; | |
937 | ||
938 | if (anqp == NULL) | |
939 | return 0; | |
940 | ||
941 | pos = wpabuf_head(anqp); | |
942 | end = pos + wpabuf_len(anqp); | |
943 | ||
944 | /* Set of <OI Length, OI> duples */ | |
945 | while (pos < end) { | |
946 | len = *pos++; | |
947 | if (pos + len > end) | |
948 | break; | |
949 | if (len == rc_len && os_memcmp(pos, rc_id, rc_len) == 0) | |
950 | return 1; | |
951 | pos += len; | |
952 | } | |
953 | ||
954 | return 0; | |
955 | } | |
956 | ||
957 | ||
958 | static int roaming_consortium_match(const u8 *ie, const struct wpabuf *anqp, | |
959 | const u8 *rc_id, size_t rc_len) | |
960 | { | |
961 | return roaming_consortium_element_match(ie, rc_id, rc_len) || | |
962 | roaming_consortium_anqp_match(anqp, rc_id, rc_len); | |
963 | } | |
964 | ||
965 | ||
dbea8ac7 JM |
966 | static int cred_excluded_ssid(struct wpa_cred *cred, struct wpa_bss *bss) |
967 | { | |
968 | size_t i; | |
969 | ||
970 | if (!cred->excluded_ssid) | |
971 | return 0; | |
972 | ||
973 | for (i = 0; i < cred->num_excluded_ssid; i++) { | |
974 | struct excluded_ssid *e = &cred->excluded_ssid[i]; | |
975 | if (bss->ssid_len == e->ssid_len && | |
976 | os_memcmp(bss->ssid, e->ssid, e->ssid_len) == 0) | |
977 | return 1; | |
978 | } | |
979 | ||
980 | return 0; | |
981 | } | |
982 | ||
983 | ||
955567bc JM |
984 | static struct wpa_cred * interworking_credentials_available_roaming_consortium( |
985 | struct wpa_supplicant *wpa_s, struct wpa_bss *bss) | |
986 | { | |
987 | struct wpa_cred *cred, *selected = NULL; | |
988 | const u8 *ie; | |
989 | ||
990 | ie = wpa_bss_get_ie(bss, WLAN_EID_ROAMING_CONSORTIUM); | |
991 | ||
476aed35 JM |
992 | if (ie == NULL && |
993 | (bss->anqp == NULL || bss->anqp->roaming_consortium == NULL)) | |
955567bc JM |
994 | return NULL; |
995 | ||
996 | if (wpa_s->conf->cred == NULL) | |
997 | return NULL; | |
998 | ||
999 | for (cred = wpa_s->conf->cred; cred; cred = cred->next) { | |
1000 | if (cred->roaming_consortium_len == 0) | |
1001 | continue; | |
1002 | ||
476aed35 JM |
1003 | if (!roaming_consortium_match(ie, |
1004 | bss->anqp ? | |
1005 | bss->anqp->roaming_consortium : | |
1006 | NULL, | |
955567bc JM |
1007 | cred->roaming_consortium, |
1008 | cred->roaming_consortium_len)) | |
1009 | continue; | |
1010 | ||
dbea8ac7 JM |
1011 | if (cred_excluded_ssid(cred, bss)) |
1012 | continue; | |
1013 | ||
955567bc JM |
1014 | if (selected == NULL || |
1015 | selected->priority < cred->priority) | |
1016 | selected = cred; | |
1017 | } | |
1018 | ||
1019 | return selected; | |
1020 | } | |
1021 | ||
1022 | ||
d5b5d801 JM |
1023 | static int interworking_set_eap_params(struct wpa_ssid *ssid, |
1024 | struct wpa_cred *cred, int ttls) | |
1025 | { | |
8ca93c59 JM |
1026 | if (cred->eap_method) { |
1027 | ttls = cred->eap_method->vendor == EAP_VENDOR_IETF && | |
1028 | cred->eap_method->method == EAP_TYPE_TTLS; | |
1029 | ||
1030 | os_free(ssid->eap.eap_methods); | |
1031 | ssid->eap.eap_methods = | |
1032 | os_malloc(sizeof(struct eap_method_type) * 2); | |
1033 | if (ssid->eap.eap_methods == NULL) | |
1034 | return -1; | |
1035 | os_memcpy(ssid->eap.eap_methods, cred->eap_method, | |
1036 | sizeof(*cred->eap_method)); | |
1037 | ssid->eap.eap_methods[1].vendor = EAP_VENDOR_IETF; | |
1038 | ssid->eap.eap_methods[1].method = EAP_TYPE_NONE; | |
1039 | } | |
1040 | ||
d5b5d801 JM |
1041 | if (ttls && cred->username && cred->username[0]) { |
1042 | const char *pos; | |
1043 | char *anon; | |
1044 | /* Use anonymous NAI in Phase 1 */ | |
1045 | pos = os_strchr(cred->username, '@'); | |
1046 | if (pos) { | |
1047 | size_t buflen = 9 + os_strlen(pos) + 1; | |
1048 | anon = os_malloc(buflen); | |
1049 | if (anon == NULL) | |
1050 | return -1; | |
1051 | os_snprintf(anon, buflen, "anonymous%s", pos); | |
1052 | } else if (cred->realm) { | |
1053 | size_t buflen = 10 + os_strlen(cred->realm) + 1; | |
1054 | anon = os_malloc(buflen); | |
1055 | if (anon == NULL) | |
1056 | return -1; | |
1057 | os_snprintf(anon, buflen, "anonymous@%s", cred->realm); | |
1058 | } else { | |
1059 | anon = os_strdup("anonymous"); | |
1060 | if (anon == NULL) | |
1061 | return -1; | |
1062 | } | |
1063 | if (wpa_config_set_quoted(ssid, "anonymous_identity", anon) < | |
1064 | 0) { | |
1065 | os_free(anon); | |
1066 | return -1; | |
1067 | } | |
1068 | os_free(anon); | |
1069 | } | |
1070 | ||
1071 | if (cred->username && cred->username[0] && | |
1072 | wpa_config_set_quoted(ssid, "identity", cred->username) < 0) | |
1073 | return -1; | |
1074 | ||
02af9c90 JM |
1075 | if (cred->password && cred->password[0]) { |
1076 | if (cred->ext_password && | |
1077 | wpa_config_set(ssid, "password", cred->password, 0) < 0) | |
1078 | return -1; | |
1079 | if (!cred->ext_password && | |
1080 | wpa_config_set_quoted(ssid, "password", cred->password) < | |
1081 | 0) | |
1082 | return -1; | |
1083 | } | |
d5b5d801 JM |
1084 | |
1085 | if (cred->client_cert && cred->client_cert[0] && | |
1086 | wpa_config_set_quoted(ssid, "client_cert", cred->client_cert) < 0) | |
1087 | return -1; | |
1088 | ||
93face0e JM |
1089 | #ifdef ANDROID |
1090 | if (cred->private_key && | |
1091 | os_strncmp(cred->private_key, "keystore://", 11) == 0) { | |
1092 | /* Use OpenSSL engine configuration for Android keystore */ | |
1093 | if (wpa_config_set_quoted(ssid, "engine_id", "keystore") < 0 || | |
1094 | wpa_config_set_quoted(ssid, "key_id", | |
1095 | cred->private_key + 11) < 0 || | |
1096 | wpa_config_set(ssid, "engine", "1", 0) < 0) | |
1097 | return -1; | |
1098 | } else | |
1099 | #endif /* ANDROID */ | |
d5b5d801 JM |
1100 | if (cred->private_key && cred->private_key[0] && |
1101 | wpa_config_set_quoted(ssid, "private_key", cred->private_key) < 0) | |
1102 | return -1; | |
1103 | ||
1104 | if (cred->private_key_passwd && cred->private_key_passwd[0] && | |
1105 | wpa_config_set_quoted(ssid, "private_key_passwd", | |
1106 | cred->private_key_passwd) < 0) | |
1107 | return -1; | |
1108 | ||
8ca93c59 JM |
1109 | if (cred->phase1) { |
1110 | os_free(ssid->eap.phase1); | |
1111 | ssid->eap.phase1 = os_strdup(cred->phase1); | |
1112 | } | |
1113 | if (cred->phase2) { | |
1114 | os_free(ssid->eap.phase2); | |
1115 | ssid->eap.phase2 = os_strdup(cred->phase2); | |
1116 | } | |
1117 | ||
d5b5d801 JM |
1118 | if (cred->ca_cert && cred->ca_cert[0] && |
1119 | wpa_config_set_quoted(ssid, "ca_cert", cred->ca_cert) < 0) | |
1120 | return -1; | |
1121 | ||
1122 | return 0; | |
1123 | } | |
1124 | ||
1125 | ||
955567bc JM |
1126 | static int interworking_connect_roaming_consortium( |
1127 | struct wpa_supplicant *wpa_s, struct wpa_cred *cred, | |
1128 | struct wpa_bss *bss, const u8 *ssid_ie) | |
1129 | { | |
1130 | struct wpa_ssid *ssid; | |
1131 | ||
1132 | wpa_printf(MSG_DEBUG, "Interworking: Connect with " MACSTR " based on " | |
1133 | "roaming consortium match", MAC2STR(bss->bssid)); | |
1134 | ||
1135 | ssid = wpa_config_add_network(wpa_s->conf); | |
1136 | if (ssid == NULL) | |
1137 | return -1; | |
736d4f2d | 1138 | ssid->parent_cred = cred; |
955567bc JM |
1139 | wpas_notify_network_added(wpa_s, ssid); |
1140 | wpa_config_set_network_defaults(ssid); | |
1141 | ssid->priority = cred->priority; | |
1142 | ssid->temporary = 1; | |
1143 | ssid->ssid = os_zalloc(ssid_ie[1] + 1); | |
1144 | if (ssid->ssid == NULL) | |
1145 | goto fail; | |
1146 | os_memcpy(ssid->ssid, ssid_ie + 2, ssid_ie[1]); | |
1147 | ssid->ssid_len = ssid_ie[1]; | |
1148 | ||
3c8e4ec0 | 1149 | if (interworking_set_hs20_params(wpa_s, ssid) < 0) |
1ecd2ada JM |
1150 | goto fail; |
1151 | ||
955567bc JM |
1152 | if (cred->eap_method == NULL) { |
1153 | wpa_printf(MSG_DEBUG, "Interworking: No EAP method set for " | |
1154 | "credential using roaming consortium"); | |
1155 | goto fail; | |
1156 | } | |
1157 | ||
1158 | if (interworking_set_eap_params( | |
1159 | ssid, cred, | |
1160 | cred->eap_method->vendor == EAP_VENDOR_IETF && | |
1161 | cred->eap_method->method == EAP_TYPE_TTLS) < 0) | |
1162 | goto fail; | |
1163 | ||
1164 | wpa_config_update_prio_list(wpa_s->conf); | |
1165 | interworking_reconnect(wpa_s); | |
1166 | ||
1167 | return 0; | |
1168 | ||
1169 | fail: | |
1170 | wpas_notify_network_removed(wpa_s, ssid); | |
1171 | wpa_config_remove_network(wpa_s->conf, ssid->id); | |
1172 | return -1; | |
1173 | } | |
1174 | ||
1175 | ||
b02fe7ff JM |
1176 | int interworking_connect(struct wpa_supplicant *wpa_s, struct wpa_bss *bss) |
1177 | { | |
1bb7b8e8 | 1178 | struct wpa_cred *cred; |
67e1b984 JM |
1179 | struct wpa_ssid *ssid; |
1180 | struct nai_realm *realm; | |
1181 | struct nai_realm_eap *eap = NULL; | |
1182 | u16 count, i; | |
1183 | char buf[100]; | |
1184 | const u8 *ie; | |
1185 | ||
1bb7b8e8 | 1186 | if (wpa_s->conf->cred == NULL || bss == NULL) |
b02fe7ff | 1187 | return -1; |
67e1b984 JM |
1188 | ie = wpa_bss_get_ie(bss, WLAN_EID_SSID); |
1189 | if (ie == NULL || ie[1] == 0) { | |
1190 | wpa_printf(MSG_DEBUG, "Interworking: No SSID known for " | |
1191 | MACSTR, MAC2STR(bss->bssid)); | |
1192 | return -1; | |
1193 | } | |
1194 | ||
63e5caaa JM |
1195 | if (!wpa_bss_get_ie(bss, WLAN_EID_RSN)) { |
1196 | /* | |
1197 | * We currently support only HS 2.0 networks and those are | |
1198 | * required to use WPA2-Enterprise. | |
1199 | */ | |
1200 | wpa_printf(MSG_DEBUG, "Interworking: Network does not use " | |
1201 | "RSN"); | |
1202 | return -1; | |
1203 | } | |
1204 | ||
955567bc JM |
1205 | cred = interworking_credentials_available_roaming_consortium(wpa_s, |
1206 | bss); | |
1207 | if (cred) | |
1208 | return interworking_connect_roaming_consortium(wpa_s, cred, | |
1209 | bss, ie); | |
1210 | ||
476aed35 JM |
1211 | realm = nai_realm_parse(bss->anqp ? bss->anqp->nai_realm : NULL, |
1212 | &count); | |
67e1b984 JM |
1213 | if (realm == NULL) { |
1214 | wpa_printf(MSG_DEBUG, "Interworking: Could not parse NAI " | |
1215 | "Realm list from " MACSTR, MAC2STR(bss->bssid)); | |
3b840b67 | 1216 | count = 0; |
67e1b984 JM |
1217 | } |
1218 | ||
1bb7b8e8 JM |
1219 | for (cred = wpa_s->conf->cred; cred; cred = cred->next) { |
1220 | for (i = 0; i < count; i++) { | |
1221 | if (!nai_realm_match(&realm[i], cred->realm)) | |
1222 | continue; | |
1223 | eap = nai_realm_find_eap(cred, &realm[i]); | |
1224 | if (eap) | |
1225 | break; | |
1226 | } | |
67e1b984 JM |
1227 | if (eap) |
1228 | break; | |
1229 | } | |
1230 | ||
1231 | if (!eap) { | |
3b840b67 JM |
1232 | if (interworking_connect_3gpp(wpa_s, bss) == 0) { |
1233 | if (realm) | |
1234 | nai_realm_free(realm, count); | |
1235 | return 0; | |
1236 | } | |
1237 | ||
67e1b984 JM |
1238 | wpa_printf(MSG_DEBUG, "Interworking: No matching credentials " |
1239 | "and EAP method found for " MACSTR, | |
1240 | MAC2STR(bss->bssid)); | |
1241 | nai_realm_free(realm, count); | |
1242 | return -1; | |
1243 | } | |
b02fe7ff JM |
1244 | |
1245 | wpa_printf(MSG_DEBUG, "Interworking: Connect with " MACSTR, | |
1246 | MAC2STR(bss->bssid)); | |
67e1b984 JM |
1247 | |
1248 | ssid = wpa_config_add_network(wpa_s->conf); | |
1249 | if (ssid == NULL) { | |
1250 | nai_realm_free(realm, count); | |
1251 | return -1; | |
1252 | } | |
736d4f2d | 1253 | ssid->parent_cred = cred; |
67e1b984 JM |
1254 | wpas_notify_network_added(wpa_s, ssid); |
1255 | wpa_config_set_network_defaults(ssid); | |
1a712d2f | 1256 | ssid->priority = cred->priority; |
67e1b984 JM |
1257 | ssid->temporary = 1; |
1258 | ssid->ssid = os_zalloc(ie[1] + 1); | |
1259 | if (ssid->ssid == NULL) | |
1260 | goto fail; | |
1261 | os_memcpy(ssid->ssid, ie + 2, ie[1]); | |
1262 | ssid->ssid_len = ie[1]; | |
1263 | ||
3c8e4ec0 | 1264 | if (interworking_set_hs20_params(wpa_s, ssid) < 0) |
1ecd2ada JM |
1265 | goto fail; |
1266 | ||
67e1b984 JM |
1267 | if (wpa_config_set(ssid, "eap", eap_get_name(EAP_VENDOR_IETF, |
1268 | eap->method), 0) < 0) | |
1269 | goto fail; | |
1270 | ||
67e1b984 JM |
1271 | switch (eap->method) { |
1272 | case EAP_TYPE_TTLS: | |
1273 | if (eap->inner_method) { | |
1274 | os_snprintf(buf, sizeof(buf), "\"autheap=%s\"", | |
1275 | eap_get_name(EAP_VENDOR_IETF, | |
1276 | eap->inner_method)); | |
1277 | if (wpa_config_set(ssid, "phase2", buf, 0) < 0) | |
1278 | goto fail; | |
1279 | break; | |
1280 | } | |
1281 | switch (eap->inner_non_eap) { | |
1282 | case NAI_REALM_INNER_NON_EAP_PAP: | |
1283 | if (wpa_config_set(ssid, "phase2", "\"auth=PAP\"", 0) < | |
1284 | 0) | |
1285 | goto fail; | |
1286 | break; | |
1287 | case NAI_REALM_INNER_NON_EAP_CHAP: | |
1288 | if (wpa_config_set(ssid, "phase2", "\"auth=CHAP\"", 0) | |
1289 | < 0) | |
1290 | goto fail; | |
1291 | break; | |
1292 | case NAI_REALM_INNER_NON_EAP_MSCHAP: | |
d3f57d0f JM |
1293 | if (wpa_config_set(ssid, "phase2", "\"auth=MSCHAP\"", |
1294 | 0) < 0) | |
67e1b984 JM |
1295 | goto fail; |
1296 | break; | |
1297 | case NAI_REALM_INNER_NON_EAP_MSCHAPV2: | |
1298 | if (wpa_config_set(ssid, "phase2", "\"auth=MSCHAPV2\"", | |
2047e596 JM |
1299 | 0) < 0) |
1300 | goto fail; | |
1301 | break; | |
1302 | default: | |
1303 | /* EAP params were not set - assume TTLS/MSCHAPv2 */ | |
1304 | if (wpa_config_set(ssid, "phase2", "\"auth=MSCHAPV2\"", | |
67e1b984 JM |
1305 | 0) < 0) |
1306 | goto fail; | |
1307 | break; | |
1308 | } | |
1309 | break; | |
1310 | case EAP_TYPE_PEAP: | |
1311 | os_snprintf(buf, sizeof(buf), "\"auth=%s\"", | |
03c961e5 JM |
1312 | eap_get_name(EAP_VENDOR_IETF, |
1313 | eap->inner_method ? | |
1314 | eap->inner_method : | |
1315 | EAP_TYPE_MSCHAPV2)); | |
67e1b984 JM |
1316 | if (wpa_config_set(ssid, "phase2", buf, 0) < 0) |
1317 | goto fail; | |
1318 | break; | |
11e4f46a JM |
1319 | case EAP_TYPE_TLS: |
1320 | break; | |
67e1b984 JM |
1321 | } |
1322 | ||
d5b5d801 JM |
1323 | if (interworking_set_eap_params(ssid, cred, |
1324 | eap->method == EAP_TYPE_TTLS) < 0) | |
67e1b984 JM |
1325 | goto fail; |
1326 | ||
1327 | nai_realm_free(realm, count); | |
1328 | ||
1a712d2f | 1329 | wpa_config_update_prio_list(wpa_s->conf); |
08410f08 | 1330 | interworking_reconnect(wpa_s); |
67e1b984 | 1331 | |
b02fe7ff | 1332 | return 0; |
67e1b984 JM |
1333 | |
1334 | fail: | |
1335 | wpas_notify_network_removed(wpa_s, ssid); | |
1336 | wpa_config_remove_network(wpa_s->conf, ssid->id); | |
1337 | nai_realm_free(realm, count); | |
1338 | return -1; | |
b02fe7ff JM |
1339 | } |
1340 | ||
1341 | ||
1a712d2f | 1342 | static struct wpa_cred * interworking_credentials_available_3gpp( |
3b840b67 JM |
1343 | struct wpa_supplicant *wpa_s, struct wpa_bss *bss) |
1344 | { | |
1a712d2f | 1345 | struct wpa_cred *cred, *selected = NULL; |
1bb7b8e8 | 1346 | int ret; |
3b840b67 JM |
1347 | |
1348 | #ifdef INTERWORKING_3GPP | |
476aed35 | 1349 | if (bss->anqp == NULL || bss->anqp->anqp_3gpp == NULL) |
1a712d2f | 1350 | return NULL; |
3b840b67 | 1351 | |
1bb7b8e8 | 1352 | for (cred = wpa_s->conf->cred; cred; cred = cred->next) { |
c21246f5 | 1353 | char *sep; |
d7b01abd JM |
1354 | const char *imsi; |
1355 | int mnc_len; | |
1356 | ||
1357 | #ifdef PCSC_FUNCS | |
1358 | if (cred->pcsc && wpa_s->conf->pcsc_reader && wpa_s->scard && | |
1359 | wpa_s->imsi[0]) { | |
1360 | imsi = wpa_s->imsi; | |
1361 | mnc_len = wpa_s->mnc_len; | |
1362 | goto compare; | |
1363 | } | |
1364 | #endif /* PCSC_FUNCS */ | |
c21246f5 | 1365 | |
1bb7b8e8 JM |
1366 | if (cred->imsi == NULL || !cred->imsi[0] || |
1367 | cred->milenage == NULL || !cred->milenage[0]) | |
1368 | continue; | |
3b840b67 | 1369 | |
c21246f5 JM |
1370 | sep = os_strchr(cred->imsi, '-'); |
1371 | if (sep == NULL || | |
1372 | (sep - cred->imsi != 5 && sep - cred->imsi != 6)) | |
1373 | continue; | |
d7b01abd JM |
1374 | mnc_len = sep - cred->imsi - 3; |
1375 | imsi = cred->imsi; | |
c21246f5 | 1376 | |
d7b01abd JM |
1377 | #ifdef PCSC_FUNCS |
1378 | compare: | |
1379 | #endif /* PCSC_FUNCS */ | |
1bb7b8e8 JM |
1380 | wpa_printf(MSG_DEBUG, "Interworking: Parsing 3GPP info from " |
1381 | MACSTR, MAC2STR(bss->bssid)); | |
476aed35 | 1382 | ret = plmn_id_match(bss->anqp->anqp_3gpp, imsi, mnc_len); |
1bb7b8e8 | 1383 | wpa_printf(MSG_DEBUG, "PLMN match %sfound", ret ? "" : "not "); |
1a712d2f | 1384 | if (ret) { |
dbea8ac7 JM |
1385 | if (cred_excluded_ssid(cred, bss)) |
1386 | continue; | |
1a712d2f JM |
1387 | if (selected == NULL || |
1388 | selected->priority < cred->priority) | |
1389 | selected = cred; | |
1390 | } | |
1bb7b8e8 | 1391 | } |
3b840b67 | 1392 | #endif /* INTERWORKING_3GPP */ |
1a712d2f | 1393 | return selected; |
3b840b67 JM |
1394 | } |
1395 | ||
1396 | ||
1a712d2f | 1397 | static struct wpa_cred * interworking_credentials_available_realm( |
3b840b67 | 1398 | struct wpa_supplicant *wpa_s, struct wpa_bss *bss) |
73c41a8f | 1399 | { |
1a712d2f | 1400 | struct wpa_cred *cred, *selected = NULL; |
73c41a8f JM |
1401 | struct nai_realm *realm; |
1402 | u16 count, i; | |
73c41a8f | 1403 | |
476aed35 | 1404 | if (bss->anqp == NULL || bss->anqp->nai_realm == NULL) |
1a712d2f | 1405 | return NULL; |
73c41a8f | 1406 | |
1bb7b8e8 | 1407 | if (wpa_s->conf->cred == NULL) |
1a712d2f | 1408 | return NULL; |
73c41a8f JM |
1409 | |
1410 | wpa_printf(MSG_DEBUG, "Interworking: Parsing NAI Realm list from " | |
1411 | MACSTR, MAC2STR(bss->bssid)); | |
476aed35 | 1412 | realm = nai_realm_parse(bss->anqp->nai_realm, &count); |
73c41a8f JM |
1413 | if (realm == NULL) { |
1414 | wpa_printf(MSG_DEBUG, "Interworking: Could not parse NAI " | |
1415 | "Realm list from " MACSTR, MAC2STR(bss->bssid)); | |
1a712d2f | 1416 | return NULL; |
73c41a8f JM |
1417 | } |
1418 | ||
1bb7b8e8 JM |
1419 | for (cred = wpa_s->conf->cred; cred; cred = cred->next) { |
1420 | if (cred->realm == NULL) | |
67e1b984 | 1421 | continue; |
1bb7b8e8 JM |
1422 | |
1423 | for (i = 0; i < count; i++) { | |
1424 | if (!nai_realm_match(&realm[i], cred->realm)) | |
1425 | continue; | |
1426 | if (nai_realm_find_eap(cred, &realm[i])) { | |
dbea8ac7 JM |
1427 | if (cred_excluded_ssid(cred, bss)) |
1428 | continue; | |
1a712d2f JM |
1429 | if (selected == NULL || |
1430 | selected->priority < cred->priority) | |
1431 | selected = cred; | |
1bb7b8e8 JM |
1432 | break; |
1433 | } | |
73c41a8f JM |
1434 | } |
1435 | } | |
1436 | ||
1437 | nai_realm_free(realm, count); | |
1438 | ||
1a712d2f | 1439 | return selected; |
73c41a8f JM |
1440 | } |
1441 | ||
1442 | ||
1a712d2f JM |
1443 | static struct wpa_cred * interworking_credentials_available( |
1444 | struct wpa_supplicant *wpa_s, struct wpa_bss *bss) | |
3b840b67 | 1445 | { |
1a712d2f JM |
1446 | struct wpa_cred *cred, *cred2; |
1447 | ||
1448 | cred = interworking_credentials_available_realm(wpa_s, bss); | |
1449 | cred2 = interworking_credentials_available_3gpp(wpa_s, bss); | |
1450 | if (cred && cred2 && cred2->priority >= cred->priority) | |
1451 | cred = cred2; | |
1452 | if (!cred) | |
1453 | cred = cred2; | |
1454 | ||
955567bc JM |
1455 | cred2 = interworking_credentials_available_roaming_consortium(wpa_s, |
1456 | bss); | |
1457 | if (cred && cred2 && cred2->priority >= cred->priority) | |
1458 | cred = cred2; | |
1459 | if (!cred) | |
1460 | cred = cred2; | |
1461 | ||
1a712d2f | 1462 | return cred; |
3b840b67 JM |
1463 | } |
1464 | ||
1465 | ||
9914c96f JM |
1466 | static int domain_name_list_contains(struct wpabuf *domain_names, |
1467 | const char *domain) | |
00bf219d JM |
1468 | { |
1469 | const u8 *pos, *end; | |
1470 | size_t len; | |
1471 | ||
9914c96f | 1472 | len = os_strlen(domain); |
00bf219d JM |
1473 | pos = wpabuf_head(domain_names); |
1474 | end = pos + wpabuf_len(domain_names); | |
1475 | ||
1476 | while (pos + 1 < end) { | |
1477 | if (pos + 1 + pos[0] > end) | |
1478 | break; | |
1479 | ||
9914c96f JM |
1480 | wpa_hexdump_ascii(MSG_DEBUG, "Interworking: AP domain name", |
1481 | pos + 1, pos[0]); | |
00bf219d | 1482 | if (pos[0] == len && |
9914c96f | 1483 | os_strncasecmp(domain, (const char *) (pos + 1), len) == 0) |
00bf219d JM |
1484 | return 1; |
1485 | ||
1486 | pos += 1 + pos[0]; | |
1487 | } | |
1488 | ||
1489 | return 0; | |
1490 | } | |
1491 | ||
1492 | ||
e99b4f3a JM |
1493 | int interworking_home_sp_cred(struct wpa_supplicant *wpa_s, |
1494 | struct wpa_cred *cred, | |
1495 | struct wpabuf *domain_names) | |
9914c96f JM |
1496 | { |
1497 | #ifdef INTERWORKING_3GPP | |
1498 | char nai[100], *realm; | |
9914c96f | 1499 | |
e99b4f3a JM |
1500 | char *imsi = NULL; |
1501 | int mnc_len = 0; | |
1502 | if (cred->imsi) | |
1503 | imsi = cred->imsi; | |
1f3a3ec4 | 1504 | #ifdef CONFIG_PCSC |
e99b4f3a JM |
1505 | else if (cred->pcsc && wpa_s->conf->pcsc_reader && |
1506 | wpa_s->scard && wpa_s->imsi[0]) { | |
1507 | imsi = wpa_s->imsi; | |
1508 | mnc_len = wpa_s->mnc_len; | |
1509 | } | |
1f3a3ec4 | 1510 | #endif /* CONFIG_PCSC */ |
953d25ca JM |
1511 | if (domain_names && |
1512 | imsi && build_root_nai(nai, sizeof(nai), imsi, mnc_len, 0) == 0) { | |
e99b4f3a JM |
1513 | realm = os_strchr(nai, '@'); |
1514 | if (realm) | |
1515 | realm++; | |
1516 | wpa_printf(MSG_DEBUG, "Interworking: Search for match " | |
1517 | "with SIM/USIM domain %s", realm); | |
1518 | if (realm && | |
1519 | domain_name_list_contains(domain_names, realm)) | |
1520 | return 1; | |
1521 | } | |
1bb7b8e8 JM |
1522 | #endif /* INTERWORKING_3GPP */ |
1523 | ||
953d25ca | 1524 | if (domain_names == NULL || cred->domain == NULL) |
e99b4f3a | 1525 | return 0; |
1bb7b8e8 | 1526 | |
e99b4f3a JM |
1527 | wpa_printf(MSG_DEBUG, "Interworking: Search for match with " |
1528 | "home SP FQDN %s", cred->domain); | |
1529 | if (domain_name_list_contains(domain_names, cred->domain)) | |
1530 | return 1; | |
1531 | ||
1532 | return 0; | |
1533 | } | |
1534 | ||
1535 | ||
1536 | static int interworking_home_sp(struct wpa_supplicant *wpa_s, | |
1537 | struct wpabuf *domain_names) | |
1538 | { | |
1539 | struct wpa_cred *cred; | |
1540 | ||
1541 | if (domain_names == NULL || wpa_s->conf->cred == NULL) | |
1542 | return -1; | |
1543 | ||
1544 | for (cred = wpa_s->conf->cred; cred; cred = cred->next) { | |
1545 | int res = interworking_home_sp_cred(wpa_s, cred, domain_names); | |
1546 | if (res) | |
1547 | return res; | |
9914c96f | 1548 | } |
9914c96f | 1549 | |
1bb7b8e8 | 1550 | return 0; |
9914c96f JM |
1551 | } |
1552 | ||
1553 | ||
5ed7880d JM |
1554 | static int interworking_find_network_match(struct wpa_supplicant *wpa_s) |
1555 | { | |
1556 | struct wpa_bss *bss; | |
1557 | struct wpa_ssid *ssid; | |
1558 | ||
1559 | dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { | |
1560 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { | |
349493bd | 1561 | if (wpas_network_disabled(wpa_s, ssid) || |
fea7c3a0 | 1562 | ssid->mode != WPAS_MODE_INFRA) |
5ed7880d JM |
1563 | continue; |
1564 | if (ssid->ssid_len != bss->ssid_len || | |
1565 | os_memcmp(ssid->ssid, bss->ssid, ssid->ssid_len) != | |
1566 | 0) | |
1567 | continue; | |
1568 | /* | |
1569 | * TODO: Consider more accurate matching of security | |
1570 | * configuration similarly to what is done in events.c | |
1571 | */ | |
1572 | return 1; | |
1573 | } | |
1574 | } | |
1575 | ||
1576 | return 0; | |
1577 | } | |
1578 | ||
1579 | ||
b02fe7ff JM |
1580 | static void interworking_select_network(struct wpa_supplicant *wpa_s) |
1581 | { | |
00bf219d | 1582 | struct wpa_bss *bss, *selected = NULL, *selected_home = NULL; |
1a712d2f | 1583 | int selected_prio = -999999, selected_home_prio = -999999; |
b02fe7ff | 1584 | unsigned int count = 0; |
00bf219d JM |
1585 | const char *type; |
1586 | int res; | |
1a712d2f | 1587 | struct wpa_cred *cred; |
b02fe7ff JM |
1588 | |
1589 | wpa_s->network_select = 0; | |
1590 | ||
1591 | dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { | |
1a712d2f JM |
1592 | cred = interworking_credentials_available(wpa_s, bss); |
1593 | if (!cred) | |
b02fe7ff | 1594 | continue; |
63e5caaa JM |
1595 | if (!wpa_bss_get_ie(bss, WLAN_EID_RSN)) { |
1596 | /* | |
1597 | * We currently support only HS 2.0 networks and those | |
1598 | * are required to use WPA2-Enterprise. | |
1599 | */ | |
1600 | wpa_printf(MSG_DEBUG, "Interworking: Credential match " | |
1601 | "with " MACSTR " but network does not use " | |
1602 | "RSN", MAC2STR(bss->bssid)); | |
1603 | continue; | |
1604 | } | |
b02fe7ff | 1605 | count++; |
476aed35 JM |
1606 | res = interworking_home_sp(wpa_s, bss->anqp ? |
1607 | bss->anqp->domain_name : NULL); | |
00bf219d JM |
1608 | if (res > 0) |
1609 | type = "home"; | |
1610 | else if (res == 0) | |
1611 | type = "roaming"; | |
1612 | else | |
1613 | type = "unknown"; | |
1614 | wpa_msg(wpa_s, MSG_INFO, INTERWORKING_AP MACSTR " type=%s", | |
1615 | MAC2STR(bss->bssid), type); | |
4d5bda5f JM |
1616 | if (wpa_s->auto_select || |
1617 | (wpa_s->conf->auto_interworking && | |
1618 | wpa_s->auto_network_select)) { | |
1a712d2f JM |
1619 | if (selected == NULL || |
1620 | cred->priority > selected_prio) { | |
00bf219d | 1621 | selected = bss; |
1a712d2f JM |
1622 | selected_prio = cred->priority; |
1623 | } | |
1624 | if (res > 0 && | |
1625 | (selected_home == NULL || | |
1626 | cred->priority > selected_home_prio)) { | |
00bf219d | 1627 | selected_home = bss; |
1a712d2f JM |
1628 | selected_home_prio = cred->priority; |
1629 | } | |
00bf219d JM |
1630 | } |
1631 | } | |
1632 | ||
1a712d2f JM |
1633 | if (selected_home && selected_home != selected && |
1634 | selected_home_prio >= selected_prio) { | |
00bf219d JM |
1635 | /* Prefer network operated by the Home SP */ |
1636 | selected = selected_home; | |
b02fe7ff JM |
1637 | } |
1638 | ||
1639 | if (count == 0) { | |
5ed7880d JM |
1640 | /* |
1641 | * No matching network was found based on configured | |
1642 | * credentials. Check whether any of the enabled network blocks | |
1643 | * have matching APs. | |
1644 | */ | |
1645 | if (interworking_find_network_match(wpa_s)) { | |
1646 | wpa_printf(MSG_DEBUG, "Interworking: Possible BSS " | |
1647 | "match for enabled network configurations"); | |
2b95f57b JM |
1648 | if (wpa_s->auto_select) |
1649 | interworking_reconnect(wpa_s); | |
5ed7880d JM |
1650 | return; |
1651 | } | |
1652 | ||
4d5bda5f JM |
1653 | if (wpa_s->auto_network_select) { |
1654 | wpa_printf(MSG_DEBUG, "Interworking: Continue " | |
1655 | "scanning after ANQP fetch"); | |
1656 | wpa_supplicant_req_scan(wpa_s, wpa_s->scan_interval, | |
1657 | 0); | |
1658 | return; | |
1659 | } | |
1660 | ||
b02fe7ff JM |
1661 | wpa_msg(wpa_s, MSG_INFO, INTERWORKING_NO_MATCH "No network " |
1662 | "with matching credentials found"); | |
1663 | } | |
1664 | ||
1665 | if (selected) | |
1666 | interworking_connect(wpa_s, selected); | |
1667 | } | |
1668 | ||
1669 | ||
53c9fc1d JM |
1670 | static struct wpa_bss_anqp * |
1671 | interworking_match_anqp_info(struct wpa_supplicant *wpa_s, struct wpa_bss *bss) | |
1672 | { | |
1673 | struct wpa_bss *other; | |
1674 | ||
1675 | if (is_zero_ether_addr(bss->hessid)) | |
1676 | return NULL; /* Cannot be in the same homegenous ESS */ | |
1677 | ||
1678 | dl_list_for_each(other, &wpa_s->bss, struct wpa_bss, list) { | |
1679 | if (other == bss) | |
1680 | continue; | |
1681 | if (other->anqp == NULL) | |
1682 | continue; | |
569d43c7 JM |
1683 | if (other->anqp->roaming_consortium == NULL && |
1684 | other->anqp->nai_realm == NULL && | |
1685 | other->anqp->anqp_3gpp == NULL && | |
1686 | other->anqp->domain_name == NULL) | |
1687 | continue; | |
53c9fc1d JM |
1688 | if (!(other->flags & WPA_BSS_ANQP_FETCH_TRIED)) |
1689 | continue; | |
1690 | if (os_memcmp(bss->hessid, other->hessid, ETH_ALEN) != 0) | |
1691 | continue; | |
1692 | if (bss->ssid_len != other->ssid_len || | |
1693 | os_memcmp(bss->ssid, other->ssid, bss->ssid_len) != 0) | |
1694 | continue; | |
1695 | ||
1696 | wpa_printf(MSG_DEBUG, "Interworking: Share ANQP data with " | |
1697 | "already fetched BSSID " MACSTR " and " MACSTR, | |
1698 | MAC2STR(other->bssid), MAC2STR(bss->bssid)); | |
1699 | other->anqp->users++; | |
1700 | return other->anqp; | |
1701 | } | |
1702 | ||
1703 | return NULL; | |
1704 | } | |
1705 | ||
1706 | ||
afc064fe JM |
1707 | static void interworking_next_anqp_fetch(struct wpa_supplicant *wpa_s) |
1708 | { | |
1709 | struct wpa_bss *bss; | |
1710 | int found = 0; | |
1711 | const u8 *ie; | |
1712 | ||
190e39d9 | 1713 | if (eloop_terminated() || !wpa_s->fetch_anqp_in_progress) |
afc064fe JM |
1714 | return; |
1715 | ||
1716 | dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { | |
1717 | if (!(bss->caps & IEEE80211_CAP_ESS)) | |
1718 | continue; | |
1719 | ie = wpa_bss_get_ie(bss, WLAN_EID_EXT_CAPAB); | |
1720 | if (ie == NULL || ie[1] < 4 || !(ie[5] & 0x80)) | |
1721 | continue; /* AP does not support Interworking */ | |
1722 | ||
1723 | if (!(bss->flags & WPA_BSS_ANQP_FETCH_TRIED)) { | |
476aed35 | 1724 | if (bss->anqp == NULL) { |
53c9fc1d JM |
1725 | bss->anqp = interworking_match_anqp_info(wpa_s, |
1726 | bss); | |
1727 | if (bss->anqp) { | |
1728 | /* Shared data already fetched */ | |
1729 | continue; | |
1730 | } | |
476aed35 JM |
1731 | bss->anqp = wpa_bss_anqp_alloc(); |
1732 | if (bss->anqp == NULL) | |
1733 | break; | |
1734 | } | |
afc064fe JM |
1735 | found++; |
1736 | bss->flags |= WPA_BSS_ANQP_FETCH_TRIED; | |
1737 | wpa_msg(wpa_s, MSG_INFO, "Starting ANQP fetch for " | |
1738 | MACSTR, MAC2STR(bss->bssid)); | |
1739 | interworking_anqp_send_req(wpa_s, bss); | |
1740 | break; | |
1741 | } | |
1742 | } | |
1743 | ||
1744 | if (found == 0) { | |
1745 | wpa_msg(wpa_s, MSG_INFO, "ANQP fetch completed"); | |
1746 | wpa_s->fetch_anqp_in_progress = 0; | |
b02fe7ff JM |
1747 | if (wpa_s->network_select) |
1748 | interworking_select_network(wpa_s); | |
afc064fe JM |
1749 | } |
1750 | } | |
1751 | ||
1752 | ||
4d5bda5f | 1753 | void interworking_start_fetch_anqp(struct wpa_supplicant *wpa_s) |
afc064fe JM |
1754 | { |
1755 | struct wpa_bss *bss; | |
1756 | ||
afc064fe JM |
1757 | dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) |
1758 | bss->flags &= ~WPA_BSS_ANQP_FETCH_TRIED; | |
1759 | ||
1760 | wpa_s->fetch_anqp_in_progress = 1; | |
1761 | interworking_next_anqp_fetch(wpa_s); | |
b02fe7ff JM |
1762 | } |
1763 | ||
1764 | ||
1765 | int interworking_fetch_anqp(struct wpa_supplicant *wpa_s) | |
1766 | { | |
1767 | if (wpa_s->fetch_anqp_in_progress || wpa_s->network_select) | |
1768 | return 0; | |
1769 | ||
1770 | wpa_s->network_select = 0; | |
7ff83367 | 1771 | wpa_s->fetch_all_anqp = 1; |
b02fe7ff JM |
1772 | |
1773 | interworking_start_fetch_anqp(wpa_s); | |
afc064fe JM |
1774 | |
1775 | return 0; | |
1776 | } | |
1777 | ||
1778 | ||
1779 | void interworking_stop_fetch_anqp(struct wpa_supplicant *wpa_s) | |
1780 | { | |
1781 | if (!wpa_s->fetch_anqp_in_progress) | |
1782 | return; | |
1783 | ||
1784 | wpa_s->fetch_anqp_in_progress = 0; | |
1785 | } | |
1786 | ||
1787 | ||
1788 | int anqp_send_req(struct wpa_supplicant *wpa_s, const u8 *dst, | |
1789 | u16 info_ids[], size_t num_ids) | |
1790 | { | |
1791 | struct wpabuf *buf; | |
1792 | int ret = 0; | |
1793 | int freq; | |
1794 | struct wpa_bss *bss; | |
1795 | int res; | |
1796 | ||
1797 | freq = wpa_s->assoc_freq; | |
1798 | bss = wpa_bss_get_bssid(wpa_s, dst); | |
485e3a92 JM |
1799 | if (bss) { |
1800 | wpa_bss_anqp_unshare_alloc(bss); | |
afc064fe | 1801 | freq = bss->freq; |
485e3a92 | 1802 | } |
afc064fe JM |
1803 | if (freq <= 0) |
1804 | return -1; | |
1805 | ||
1806 | wpa_printf(MSG_DEBUG, "ANQP: Query Request to " MACSTR " for %u id(s)", | |
1807 | MAC2STR(dst), (unsigned int) num_ids); | |
1808 | ||
1809 | buf = anqp_build_req(info_ids, num_ids, NULL); | |
1810 | if (buf == NULL) | |
1811 | return -1; | |
1812 | ||
1813 | res = gas_query_req(wpa_s->gas, dst, freq, buf, anqp_resp_cb, wpa_s); | |
1814 | if (res < 0) { | |
1815 | wpa_printf(MSG_DEBUG, "ANQP: Failed to send Query Request"); | |
1816 | ret = -1; | |
1817 | } else | |
1818 | wpa_printf(MSG_DEBUG, "ANQP: Query started with dialog token " | |
1819 | "%u", res); | |
1820 | ||
1821 | wpabuf_free(buf); | |
1822 | return ret; | |
1823 | } | |
1824 | ||
1825 | ||
1826 | static void interworking_parse_rx_anqp_resp(struct wpa_supplicant *wpa_s, | |
1827 | const u8 *sa, u16 info_id, | |
1828 | const u8 *data, size_t slen) | |
1829 | { | |
1830 | const u8 *pos = data; | |
1831 | struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, sa); | |
476aed35 | 1832 | struct wpa_bss_anqp *anqp = NULL; |
2249d714 JM |
1833 | #ifdef CONFIG_HS20 |
1834 | u8 type; | |
1835 | #endif /* CONFIG_HS20 */ | |
afc064fe | 1836 | |
476aed35 JM |
1837 | if (bss) |
1838 | anqp = bss->anqp; | |
1839 | ||
afc064fe JM |
1840 | switch (info_id) { |
1841 | case ANQP_CAPABILITY_LIST: | |
1842 | wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR | |
1843 | " ANQP Capability list", MAC2STR(sa)); | |
1844 | break; | |
1845 | case ANQP_VENUE_NAME: | |
1846 | wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR | |
1847 | " Venue Name", MAC2STR(sa)); | |
1848 | wpa_hexdump_ascii(MSG_DEBUG, "ANQP: Venue Name", pos, slen); | |
476aed35 JM |
1849 | if (anqp) { |
1850 | wpabuf_free(anqp->venue_name); | |
1851 | anqp->venue_name = wpabuf_alloc_copy(pos, slen); | |
afc064fe JM |
1852 | } |
1853 | break; | |
1854 | case ANQP_NETWORK_AUTH_TYPE: | |
1855 | wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR | |
1856 | " Network Authentication Type information", | |
1857 | MAC2STR(sa)); | |
1858 | wpa_hexdump_ascii(MSG_DEBUG, "ANQP: Network Authentication " | |
1859 | "Type", pos, slen); | |
476aed35 JM |
1860 | if (anqp) { |
1861 | wpabuf_free(anqp->network_auth_type); | |
1862 | anqp->network_auth_type = wpabuf_alloc_copy(pos, slen); | |
afc064fe JM |
1863 | } |
1864 | break; | |
1865 | case ANQP_ROAMING_CONSORTIUM: | |
1866 | wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR | |
1867 | " Roaming Consortium list", MAC2STR(sa)); | |
1868 | wpa_hexdump_ascii(MSG_DEBUG, "ANQP: Roaming Consortium", | |
1869 | pos, slen); | |
476aed35 JM |
1870 | if (anqp) { |
1871 | wpabuf_free(anqp->roaming_consortium); | |
1872 | anqp->roaming_consortium = wpabuf_alloc_copy(pos, slen); | |
afc064fe JM |
1873 | } |
1874 | break; | |
1875 | case ANQP_IP_ADDR_TYPE_AVAILABILITY: | |
1876 | wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR | |
1877 | " IP Address Type Availability information", | |
1878 | MAC2STR(sa)); | |
1879 | wpa_hexdump(MSG_MSGDUMP, "ANQP: IP Address Availability", | |
1880 | pos, slen); | |
476aed35 JM |
1881 | if (anqp) { |
1882 | wpabuf_free(anqp->ip_addr_type_availability); | |
1883 | anqp->ip_addr_type_availability = | |
afc064fe JM |
1884 | wpabuf_alloc_copy(pos, slen); |
1885 | } | |
1886 | break; | |
1887 | case ANQP_NAI_REALM: | |
1888 | wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR | |
1889 | " NAI Realm list", MAC2STR(sa)); | |
1890 | wpa_hexdump_ascii(MSG_DEBUG, "ANQP: NAI Realm", pos, slen); | |
476aed35 JM |
1891 | if (anqp) { |
1892 | wpabuf_free(anqp->nai_realm); | |
1893 | anqp->nai_realm = wpabuf_alloc_copy(pos, slen); | |
afc064fe JM |
1894 | } |
1895 | break; | |
1896 | case ANQP_3GPP_CELLULAR_NETWORK: | |
1897 | wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR | |
1898 | " 3GPP Cellular Network information", MAC2STR(sa)); | |
1899 | wpa_hexdump_ascii(MSG_DEBUG, "ANQP: 3GPP Cellular Network", | |
1900 | pos, slen); | |
476aed35 JM |
1901 | if (anqp) { |
1902 | wpabuf_free(anqp->anqp_3gpp); | |
1903 | anqp->anqp_3gpp = wpabuf_alloc_copy(pos, slen); | |
afc064fe JM |
1904 | } |
1905 | break; | |
1906 | case ANQP_DOMAIN_NAME: | |
1907 | wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR | |
1908 | " Domain Name list", MAC2STR(sa)); | |
1909 | wpa_hexdump_ascii(MSG_MSGDUMP, "ANQP: Domain Name", pos, slen); | |
476aed35 JM |
1910 | if (anqp) { |
1911 | wpabuf_free(anqp->domain_name); | |
1912 | anqp->domain_name = wpabuf_alloc_copy(pos, slen); | |
afc064fe JM |
1913 | } |
1914 | break; | |
1915 | case ANQP_VENDOR_SPECIFIC: | |
1916 | if (slen < 3) | |
1917 | return; | |
1918 | ||
1919 | switch (WPA_GET_BE24(pos)) { | |
2249d714 JM |
1920 | #ifdef CONFIG_HS20 |
1921 | case OUI_WFA: | |
1922 | pos += 3; | |
1923 | slen -= 3; | |
1924 | ||
1925 | if (slen < 1) | |
1926 | return; | |
1927 | type = *pos++; | |
1928 | slen--; | |
1929 | ||
1930 | switch (type) { | |
1931 | case HS20_ANQP_OUI_TYPE: | |
1932 | hs20_parse_rx_hs20_anqp_resp(wpa_s, sa, pos, | |
1933 | slen); | |
1934 | break; | |
1935 | default: | |
1936 | wpa_printf(MSG_DEBUG, "HS20: Unsupported ANQP " | |
1937 | "vendor type %u", type); | |
1938 | break; | |
1939 | } | |
1940 | break; | |
1941 | #endif /* CONFIG_HS20 */ | |
afc064fe JM |
1942 | default: |
1943 | wpa_printf(MSG_DEBUG, "Interworking: Unsupported " | |
1944 | "vendor-specific ANQP OUI %06x", | |
1945 | WPA_GET_BE24(pos)); | |
1946 | return; | |
1947 | } | |
1948 | break; | |
1949 | default: | |
1950 | wpa_printf(MSG_DEBUG, "Interworking: Unsupported ANQP Info ID " | |
1951 | "%u", info_id); | |
1952 | break; | |
1953 | } | |
1954 | } | |
1955 | ||
1956 | ||
1957 | void anqp_resp_cb(void *ctx, const u8 *dst, u8 dialog_token, | |
1958 | enum gas_query_result result, | |
1959 | const struct wpabuf *adv_proto, | |
1960 | const struct wpabuf *resp, u16 status_code) | |
1961 | { | |
1962 | struct wpa_supplicant *wpa_s = ctx; | |
1963 | const u8 *pos; | |
1964 | const u8 *end; | |
1965 | u16 info_id; | |
1966 | u16 slen; | |
1967 | ||
1968 | if (result != GAS_QUERY_SUCCESS) | |
1969 | return; | |
1970 | ||
1971 | pos = wpabuf_head(adv_proto); | |
1972 | if (wpabuf_len(adv_proto) < 4 || pos[0] != WLAN_EID_ADV_PROTO || | |
1973 | pos[1] < 2 || pos[3] != ACCESS_NETWORK_QUERY_PROTOCOL) { | |
1974 | wpa_printf(MSG_DEBUG, "ANQP: Unexpected Advertisement " | |
1975 | "Protocol in response"); | |
1976 | return; | |
1977 | } | |
1978 | ||
1979 | pos = wpabuf_head(resp); | |
1980 | end = pos + wpabuf_len(resp); | |
1981 | ||
1982 | while (pos < end) { | |
1983 | if (pos + 4 > end) { | |
1984 | wpa_printf(MSG_DEBUG, "ANQP: Invalid element"); | |
1985 | break; | |
1986 | } | |
1987 | info_id = WPA_GET_LE16(pos); | |
1988 | pos += 2; | |
1989 | slen = WPA_GET_LE16(pos); | |
1990 | pos += 2; | |
1991 | if (pos + slen > end) { | |
1992 | wpa_printf(MSG_DEBUG, "ANQP: Invalid element length " | |
1993 | "for Info ID %u", info_id); | |
1994 | break; | |
1995 | } | |
1996 | interworking_parse_rx_anqp_resp(wpa_s, dst, info_id, pos, | |
1997 | slen); | |
1998 | pos += slen; | |
1999 | } | |
2000 | } | |
b02fe7ff JM |
2001 | |
2002 | ||
2003 | static void interworking_scan_res_handler(struct wpa_supplicant *wpa_s, | |
2004 | struct wpa_scan_results *scan_res) | |
2005 | { | |
2006 | wpa_printf(MSG_DEBUG, "Interworking: Scan results available - start " | |
2007 | "ANQP fetch"); | |
2008 | interworking_start_fetch_anqp(wpa_s); | |
2009 | } | |
2010 | ||
2011 | ||
2012 | int interworking_select(struct wpa_supplicant *wpa_s, int auto_select) | |
2013 | { | |
2014 | interworking_stop_fetch_anqp(wpa_s); | |
2015 | wpa_s->network_select = 1; | |
4d5bda5f | 2016 | wpa_s->auto_network_select = 0; |
b02fe7ff | 2017 | wpa_s->auto_select = !!auto_select; |
7ff83367 | 2018 | wpa_s->fetch_all_anqp = 0; |
b02fe7ff JM |
2019 | wpa_printf(MSG_DEBUG, "Interworking: Start scan for network " |
2020 | "selection"); | |
2021 | wpa_s->scan_res_handler = interworking_scan_res_handler; | |
4115303b | 2022 | wpa_s->scan_req = MANUAL_SCAN_REQ; |
b02fe7ff JM |
2023 | wpa_supplicant_req_scan(wpa_s, 0, 0); |
2024 | ||
2025 | return 0; | |
2026 | } | |
b1f12296 JM |
2027 | |
2028 | ||
2029 | static void gas_resp_cb(void *ctx, const u8 *addr, u8 dialog_token, | |
2030 | enum gas_query_result result, | |
2031 | const struct wpabuf *adv_proto, | |
2032 | const struct wpabuf *resp, u16 status_code) | |
2033 | { | |
2034 | struct wpa_supplicant *wpa_s = ctx; | |
2035 | ||
2036 | wpa_msg(wpa_s, MSG_INFO, GAS_RESPONSE_INFO "addr=" MACSTR | |
2037 | " dialog_token=%d status_code=%d resp_len=%d", | |
2038 | MAC2STR(addr), dialog_token, status_code, | |
2039 | resp ? (int) wpabuf_len(resp) : -1); | |
2040 | if (!resp) | |
2041 | return; | |
2042 | ||
2043 | wpabuf_free(wpa_s->last_gas_resp); | |
2044 | wpa_s->last_gas_resp = wpabuf_dup(resp); | |
2045 | if (wpa_s->last_gas_resp == NULL) | |
2046 | return; | |
2047 | os_memcpy(wpa_s->last_gas_addr, addr, ETH_ALEN); | |
2048 | wpa_s->last_gas_dialog_token = dialog_token; | |
2049 | } | |
2050 | ||
2051 | ||
2052 | int gas_send_request(struct wpa_supplicant *wpa_s, const u8 *dst, | |
2053 | const struct wpabuf *adv_proto, | |
2054 | const struct wpabuf *query) | |
2055 | { | |
2056 | struct wpabuf *buf; | |
2057 | int ret = 0; | |
2058 | int freq; | |
2059 | struct wpa_bss *bss; | |
2060 | int res; | |
2061 | size_t len; | |
2062 | u8 query_resp_len_limit = 0, pame_bi = 0; | |
2063 | ||
2064 | freq = wpa_s->assoc_freq; | |
2065 | bss = wpa_bss_get_bssid(wpa_s, dst); | |
2066 | if (bss) | |
2067 | freq = bss->freq; | |
2068 | if (freq <= 0) | |
2069 | return -1; | |
2070 | ||
2071 | wpa_printf(MSG_DEBUG, "GAS request to " MACSTR " (freq %d MHz)", | |
2072 | MAC2STR(dst), freq); | |
2073 | wpa_hexdump_buf(MSG_DEBUG, "Advertisement Protocol ID", adv_proto); | |
2074 | wpa_hexdump_buf(MSG_DEBUG, "GAS Query", query); | |
2075 | ||
2076 | len = 3 + wpabuf_len(adv_proto) + 2; | |
2077 | if (query) | |
2078 | len += wpabuf_len(query); | |
2079 | buf = gas_build_initial_req(0, len); | |
2080 | if (buf == NULL) | |
2081 | return -1; | |
2082 | ||
2083 | /* Advertisement Protocol IE */ | |
2084 | wpabuf_put_u8(buf, WLAN_EID_ADV_PROTO); | |
2085 | wpabuf_put_u8(buf, 1 + wpabuf_len(adv_proto)); /* Length */ | |
2086 | wpabuf_put_u8(buf, (query_resp_len_limit & 0x7f) | | |
2087 | (pame_bi ? 0x80 : 0)); | |
2088 | wpabuf_put_buf(buf, adv_proto); | |
2089 | ||
2090 | /* GAS Query */ | |
2091 | if (query) { | |
2092 | wpabuf_put_le16(buf, wpabuf_len(query)); | |
2093 | wpabuf_put_buf(buf, query); | |
2094 | } else | |
2095 | wpabuf_put_le16(buf, 0); | |
2096 | ||
2097 | res = gas_query_req(wpa_s->gas, dst, freq, buf, gas_resp_cb, wpa_s); | |
2098 | if (res < 0) { | |
2099 | wpa_printf(MSG_DEBUG, "GAS: Failed to send Query Request"); | |
2100 | ret = -1; | |
2101 | } else | |
2102 | wpa_printf(MSG_DEBUG, "GAS: Query started with dialog token " | |
2103 | "%u", res); | |
2104 | ||
2105 | wpabuf_free(buf); | |
2106 | return ret; | |
2107 | } |