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Interworking: Continue ANQP fetch after TX failure
[thirdparty/hostap.git] / wpa_supplicant / interworking.c
CommitLineData
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		 44static void interworking_next_anqp_fetch(struct wpa_supplicant *wpa_s);
45
46
08410f08
JM		 47static 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		 72static 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
97static 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		 112static 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
124static 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
136static 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
152static 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
164static 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		 174static 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		 181static 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		 260struct 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
268struct nai_realm {
269 u8 encoding;
270 char *realm;
271 u8 eap_count;
272 struct nai_realm_eap *eap;
273};
274
275
276static 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
290static 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
382static 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
445static 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
484static 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		 519static 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		 561static 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 575static 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 605static 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 668static 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
724static 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		 735static 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		 750static 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
882fail:
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		 890static 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
932static 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
958static 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		 966static 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		 984static 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		 1023static 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		 1126static 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
1169fail:
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		 1176int 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
1334fail:
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 1342static 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 1397static 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		 1443static 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		 1466static 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		 1493int 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
1536static 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		 1554static 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		 1580static 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		 1670static struct wpa_bss_anqp *
1671interworking_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;
1683 if (!(other->flags & WPA_BSS_ANQP_FETCH_TRIED))
1684 continue;
1685 if (os_memcmp(bss->hessid, other->hessid, ETH_ALEN) != 0)
1686 continue;
1687 if (bss->ssid_len != other->ssid_len ||
1688 os_memcmp(bss->ssid, other->ssid, bss->ssid_len) != 0)
1689 continue;
1690
1691 wpa_printf(MSG_DEBUG, "Interworking: Share ANQP data with "
1692 "already fetched BSSID " MACSTR " and " MACSTR,
1693 MAC2STR(other->bssid), MAC2STR(bss->bssid));
1694 other->anqp->users++;
1695 return other->anqp;
1696 }
1697
1698 return NULL;
1699}
1700
1701
afc064fe
JM		 1702static void interworking_next_anqp_fetch(struct wpa_supplicant *wpa_s)
1703{
1704 struct wpa_bss *bss;
1705 int found = 0;
1706 const u8 *ie;
1707
1708 if (!wpa_s->fetch_anqp_in_progress)
1709 return;
1710
1711 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1712 if (!(bss->caps & IEEE80211_CAP_ESS))
1713 continue;
1714 ie = wpa_bss_get_ie(bss, WLAN_EID_EXT_CAPAB);
1715 if (ie == NULL || ie[1] < 4 || !(ie[5] & 0x80))
1716 continue; /* AP does not support Interworking */
1717
1718 if (!(bss->flags & WPA_BSS_ANQP_FETCH_TRIED)) {
476aed35 1719 if (bss->anqp == NULL) {
53c9fc1d
JM		 1720 bss->anqp = interworking_match_anqp_info(wpa_s,
1721 bss);
1722 if (bss->anqp) {
1723 /* Shared data already fetched */
1724 continue;
1725 }
476aed35
JM		 1726 bss->anqp = wpa_bss_anqp_alloc();
1727 if (bss->anqp == NULL)
1728 break;
1729 }
afc064fe
JM		 1730 found++;
1731 bss->flags |= WPA_BSS_ANQP_FETCH_TRIED;
1732 wpa_msg(wpa_s, MSG_INFO, "Starting ANQP fetch for "
1733 MACSTR, MAC2STR(bss->bssid));
1734 interworking_anqp_send_req(wpa_s, bss);
1735 break;
1736 }
1737 }
1738
1739 if (found == 0) {
1740 wpa_msg(wpa_s, MSG_INFO, "ANQP fetch completed");
1741 wpa_s->fetch_anqp_in_progress = 0;
b02fe7ff
JM		 1742 if (wpa_s->network_select)
1743 interworking_select_network(wpa_s);
afc064fe
JM		 1744 }
1745}
1746
1747
4d5bda5f 1748void interworking_start_fetch_anqp(struct wpa_supplicant *wpa_s)
afc064fe
JM		 1749{
1750 struct wpa_bss *bss;
1751
afc064fe
JM		 1752 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list)
1753 bss->flags &= ~WPA_BSS_ANQP_FETCH_TRIED;
1754
1755 wpa_s->fetch_anqp_in_progress = 1;
1756 interworking_next_anqp_fetch(wpa_s);
b02fe7ff
JM		 1757}
1758
1759
1760int interworking_fetch_anqp(struct wpa_supplicant *wpa_s)
1761{
1762 if (wpa_s->fetch_anqp_in_progress || wpa_s->network_select)
1763 return 0;
1764
1765 wpa_s->network_select = 0;
7ff83367 1766 wpa_s->fetch_all_anqp = 1;
b02fe7ff
JM		 1767
1768 interworking_start_fetch_anqp(wpa_s);
afc064fe
JM		 1769
1770 return 0;
1771}
1772
1773
1774void interworking_stop_fetch_anqp(struct wpa_supplicant *wpa_s)
1775{
1776 if (!wpa_s->fetch_anqp_in_progress)
1777 return;
1778
1779 wpa_s->fetch_anqp_in_progress = 0;
1780}
1781
1782
1783int anqp_send_req(struct wpa_supplicant *wpa_s, const u8 *dst,
1784 u16 info_ids[], size_t num_ids)
1785{
1786 struct wpabuf *buf;
1787 int ret = 0;
1788 int freq;
1789 struct wpa_bss *bss;
1790 int res;
1791
1792 freq = wpa_s->assoc_freq;
1793 bss = wpa_bss_get_bssid(wpa_s, dst);
485e3a92
JM		 1794 if (bss) {
1795 wpa_bss_anqp_unshare_alloc(bss);
afc064fe 1796 freq = bss->freq;
485e3a92 1797 }
afc064fe
JM		 1798 if (freq <= 0)
1799 return -1;
1800
1801 wpa_printf(MSG_DEBUG, "ANQP: Query Request to " MACSTR " for %u id(s)",
1802 MAC2STR(dst), (unsigned int) num_ids);
1803
1804 buf = anqp_build_req(info_ids, num_ids, NULL);
1805 if (buf == NULL)
1806 return -1;
1807
1808 res = gas_query_req(wpa_s->gas, dst, freq, buf, anqp_resp_cb, wpa_s);
1809 if (res < 0) {
1810 wpa_printf(MSG_DEBUG, "ANQP: Failed to send Query Request");
1811 ret = -1;
1812 } else
1813 wpa_printf(MSG_DEBUG, "ANQP: Query started with dialog token "
1814 "%u", res);
1815
1816 wpabuf_free(buf);
1817 return ret;
1818}
1819
1820
1821static void interworking_parse_rx_anqp_resp(struct wpa_supplicant *wpa_s,
1822 const u8 *sa, u16 info_id,
1823 const u8 *data, size_t slen)
1824{
1825 const u8 *pos = data;
1826 struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, sa);
476aed35 1827 struct wpa_bss_anqp *anqp = NULL;
2249d714
JM		 1828#ifdef CONFIG_HS20
1829 u8 type;
1830#endif /* CONFIG_HS20 */
afc064fe 1831
476aed35
JM		 1832 if (bss)
1833 anqp = bss->anqp;
1834
afc064fe
JM		 1835 switch (info_id) {
1836 case ANQP_CAPABILITY_LIST:
1837 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
1838 " ANQP Capability list", MAC2STR(sa));
1839 break;
1840 case ANQP_VENUE_NAME:
1841 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
1842 " Venue Name", MAC2STR(sa));
1843 wpa_hexdump_ascii(MSG_DEBUG, "ANQP: Venue Name", pos, slen);
476aed35
JM		 1844 if (anqp) {
1845 wpabuf_free(anqp->venue_name);
1846 anqp->venue_name = wpabuf_alloc_copy(pos, slen);
afc064fe
JM		 1847 }
1848 break;
1849 case ANQP_NETWORK_AUTH_TYPE:
1850 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
1851 " Network Authentication Type information",
1852 MAC2STR(sa));
1853 wpa_hexdump_ascii(MSG_DEBUG, "ANQP: Network Authentication "
1854 "Type", pos, slen);
476aed35
JM		 1855 if (anqp) {
1856 wpabuf_free(anqp->network_auth_type);
1857 anqp->network_auth_type = wpabuf_alloc_copy(pos, slen);
afc064fe
JM		 1858 }
1859 break;
1860 case ANQP_ROAMING_CONSORTIUM:
1861 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
1862 " Roaming Consortium list", MAC2STR(sa));
1863 wpa_hexdump_ascii(MSG_DEBUG, "ANQP: Roaming Consortium",
1864 pos, slen);
476aed35
JM		 1865 if (anqp) {
1866 wpabuf_free(anqp->roaming_consortium);
1867 anqp->roaming_consortium = wpabuf_alloc_copy(pos, slen);
afc064fe
JM		 1868 }
1869 break;
1870 case ANQP_IP_ADDR_TYPE_AVAILABILITY:
1871 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
1872 " IP Address Type Availability information",
1873 MAC2STR(sa));
1874 wpa_hexdump(MSG_MSGDUMP, "ANQP: IP Address Availability",
1875 pos, slen);
476aed35
JM		 1876 if (anqp) {
1877 wpabuf_free(anqp->ip_addr_type_availability);
1878 anqp->ip_addr_type_availability =
afc064fe
JM		 1879 wpabuf_alloc_copy(pos, slen);
1880 }
1881 break;
1882 case ANQP_NAI_REALM:
1883 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
1884 " NAI Realm list", MAC2STR(sa));
1885 wpa_hexdump_ascii(MSG_DEBUG, "ANQP: NAI Realm", pos, slen);
476aed35
JM		 1886 if (anqp) {
1887 wpabuf_free(anqp->nai_realm);
1888 anqp->nai_realm = wpabuf_alloc_copy(pos, slen);
afc064fe
JM		 1889 }
1890 break;
1891 case ANQP_3GPP_CELLULAR_NETWORK:
1892 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
1893 " 3GPP Cellular Network information", MAC2STR(sa));
1894 wpa_hexdump_ascii(MSG_DEBUG, "ANQP: 3GPP Cellular Network",
1895 pos, slen);
476aed35
JM		 1896 if (anqp) {
1897 wpabuf_free(anqp->anqp_3gpp);
1898 anqp->anqp_3gpp = wpabuf_alloc_copy(pos, slen);
afc064fe
JM		 1899 }
1900 break;
1901 case ANQP_DOMAIN_NAME:
1902 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
1903 " Domain Name list", MAC2STR(sa));
1904 wpa_hexdump_ascii(MSG_MSGDUMP, "ANQP: Domain Name", pos, slen);
476aed35
JM		 1905 if (anqp) {
1906 wpabuf_free(anqp->domain_name);
1907 anqp->domain_name = wpabuf_alloc_copy(pos, slen);
afc064fe
JM		 1908 }
1909 break;
1910 case ANQP_VENDOR_SPECIFIC:
1911 if (slen < 3)
1912 return;
1913
1914 switch (WPA_GET_BE24(pos)) {
2249d714
JM		 1915#ifdef CONFIG_HS20
1916 case OUI_WFA:
1917 pos += 3;
1918 slen -= 3;
1919
1920 if (slen < 1)
1921 return;
1922 type = *pos++;
1923 slen--;
1924
1925 switch (type) {
1926 case HS20_ANQP_OUI_TYPE:
1927 hs20_parse_rx_hs20_anqp_resp(wpa_s, sa, pos,
1928 slen);
1929 break;
1930 default:
1931 wpa_printf(MSG_DEBUG, "HS20: Unsupported ANQP "
1932 "vendor type %u", type);
1933 break;
1934 }
1935 break;
1936#endif /* CONFIG_HS20 */
afc064fe
JM		 1937 default:
1938 wpa_printf(MSG_DEBUG, "Interworking: Unsupported "
1939 "vendor-specific ANQP OUI %06x",
1940 WPA_GET_BE24(pos));
1941 return;
1942 }
1943 break;
1944 default:
1945 wpa_printf(MSG_DEBUG, "Interworking: Unsupported ANQP Info ID "
1946 "%u", info_id);
1947 break;
1948 }
1949}
1950
1951
1952void anqp_resp_cb(void *ctx, const u8 *dst, u8 dialog_token,
1953 enum gas_query_result result,
1954 const struct wpabuf *adv_proto,
1955 const struct wpabuf *resp, u16 status_code)
1956{
1957 struct wpa_supplicant *wpa_s = ctx;
1958 const u8 *pos;
1959 const u8 *end;
1960 u16 info_id;
1961 u16 slen;
1962
1963 if (result != GAS_QUERY_SUCCESS)
1964 return;
1965
1966 pos = wpabuf_head(adv_proto);
1967 if (wpabuf_len(adv_proto) < 4 || pos[0] != WLAN_EID_ADV_PROTO ||
1968 pos[1] < 2 || pos[3] != ACCESS_NETWORK_QUERY_PROTOCOL) {
1969 wpa_printf(MSG_DEBUG, "ANQP: Unexpected Advertisement "
1970 "Protocol in response");
1971 return;
1972 }
1973
1974 pos = wpabuf_head(resp);
1975 end = pos + wpabuf_len(resp);
1976
1977 while (pos < end) {
1978 if (pos + 4 > end) {
1979 wpa_printf(MSG_DEBUG, "ANQP: Invalid element");
1980 break;
1981 }
1982 info_id = WPA_GET_LE16(pos);
1983 pos += 2;
1984 slen = WPA_GET_LE16(pos);
1985 pos += 2;
1986 if (pos + slen > end) {
1987 wpa_printf(MSG_DEBUG, "ANQP: Invalid element length "
1988 "for Info ID %u", info_id);
1989 break;
1990 }
1991 interworking_parse_rx_anqp_resp(wpa_s, dst, info_id, pos,
1992 slen);
1993 pos += slen;
1994 }
1995}
b02fe7ff
JM		 1996
1997
1998static void interworking_scan_res_handler(struct wpa_supplicant *wpa_s,
1999 struct wpa_scan_results *scan_res)
2000{
2001 wpa_printf(MSG_DEBUG, "Interworking: Scan results available - start "
2002 "ANQP fetch");
2003 interworking_start_fetch_anqp(wpa_s);
2004}
2005
2006
2007int interworking_select(struct wpa_supplicant *wpa_s, int auto_select)
2008{
2009 interworking_stop_fetch_anqp(wpa_s);
2010 wpa_s->network_select = 1;
4d5bda5f 2011 wpa_s->auto_network_select = 0;
b02fe7ff 2012 wpa_s->auto_select = !!auto_select;
7ff83367 2013 wpa_s->fetch_all_anqp = 0;
b02fe7ff
JM		 2014 wpa_printf(MSG_DEBUG, "Interworking: Start scan for network "
2015 "selection");
2016 wpa_s->scan_res_handler = interworking_scan_res_handler;
4115303b 2017 wpa_s->scan_req = MANUAL_SCAN_REQ;
b02fe7ff
JM		 2018 wpa_supplicant_req_scan(wpa_s, 0, 0);
2019
2020 return 0;
2021}
b1f12296
JM		 2022
2023
2024static void gas_resp_cb(void *ctx, const u8 *addr, u8 dialog_token,
2025 enum gas_query_result result,
2026 const struct wpabuf *adv_proto,
2027 const struct wpabuf *resp, u16 status_code)
2028{
2029 struct wpa_supplicant *wpa_s = ctx;
2030
2031 wpa_msg(wpa_s, MSG_INFO, GAS_RESPONSE_INFO "addr=" MACSTR
2032 " dialog_token=%d status_code=%d resp_len=%d",
2033 MAC2STR(addr), dialog_token, status_code,
2034 resp ? (int) wpabuf_len(resp) : -1);
2035 if (!resp)
2036 return;
2037
2038 wpabuf_free(wpa_s->last_gas_resp);
2039 wpa_s->last_gas_resp = wpabuf_dup(resp);
2040 if (wpa_s->last_gas_resp == NULL)
2041 return;
2042 os_memcpy(wpa_s->last_gas_addr, addr, ETH_ALEN);
2043 wpa_s->last_gas_dialog_token = dialog_token;
2044}
2045
2046
2047int gas_send_request(struct wpa_supplicant *wpa_s, const u8 *dst,
2048 const struct wpabuf *adv_proto,
2049 const struct wpabuf *query)
2050{
2051 struct wpabuf *buf;
2052 int ret = 0;
2053 int freq;
2054 struct wpa_bss *bss;
2055 int res;
2056 size_t len;
2057 u8 query_resp_len_limit = 0, pame_bi = 0;
2058
2059 freq = wpa_s->assoc_freq;
2060 bss = wpa_bss_get_bssid(wpa_s, dst);
2061 if (bss)
2062 freq = bss->freq;
2063 if (freq <= 0)
2064 return -1;
2065
2066 wpa_printf(MSG_DEBUG, "GAS request to " MACSTR " (freq %d MHz)",
2067 MAC2STR(dst), freq);
2068 wpa_hexdump_buf(MSG_DEBUG, "Advertisement Protocol ID", adv_proto);
2069 wpa_hexdump_buf(MSG_DEBUG, "GAS Query", query);
2070
2071 len = 3 + wpabuf_len(adv_proto) + 2;
2072 if (query)
2073 len += wpabuf_len(query);
2074 buf = gas_build_initial_req(0, len);
2075 if (buf == NULL)
2076 return -1;
2077
2078 /* Advertisement Protocol IE */
2079 wpabuf_put_u8(buf, WLAN_EID_ADV_PROTO);
2080 wpabuf_put_u8(buf, 1 + wpabuf_len(adv_proto)); /* Length */
2081 wpabuf_put_u8(buf, (query_resp_len_limit & 0x7f) |
2082 (pame_bi ? 0x80 : 0));
2083 wpabuf_put_buf(buf, adv_proto);
2084
2085 /* GAS Query */
2086 if (query) {
2087 wpabuf_put_le16(buf, wpabuf_len(query));
2088 wpabuf_put_buf(buf, query);
2089 } else
2090 wpabuf_put_le16(buf, 0);
2091
2092 res = gas_query_req(wpa_s->gas, dst, freq, buf, gas_resp_cb, wpa_s);
2093 if (res < 0) {
2094 wpa_printf(MSG_DEBUG, "GAS: Failed to send Query Request");
2095 ret = -1;
2096 } else
2097 wpa_printf(MSG_DEBUG, "GAS: Query started with dialog token "
2098 "%u", res);
2099
2100 wpabuf_free(buf);
2101 return ret;
2102}
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