]> git.ipfire.org Git - thirdparty/hostap.git/blame - wpa_supplicant/interworking.c
projects / thirdparty / hostap.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Revert "Assign QCA vendor command and attribute for Tx/Rx aggregation"
[thirdparty/hostap.git] / wpa_supplicant / interworking.c
CommitLineData
afc064fe
JM		 1/*
2 * Interworking (IEEE 802.11u)
6ede8a7e 3 * Copyright (c) 2011-2013, Qualcomm Atheros, Inc.
b6a9590b 4 * Copyright (c) 2011-2014, Jouni Malinen <j@w1.fi>
afc064fe 5 *
e22d4d95
JM		 6 * This software may be distributed under the terms of the BSD license.
7 * See README for more details.
afc064fe
JM		 8 */
9
10#include "includes.h"
11
12#include "common.h"
13#include "common/ieee802_11_defs.h"
14#include "common/gas.h"
b02fe7ff 15#include "common/wpa_ctrl.h"
7f41c92b 16#include "utils/pcsc_funcs.h"
d1ec319f 17#include "utils/eloop.h"
afc064fe 18#include "drivers/driver.h"
73c41a8f 19#include "eap_common/eap_defs.h"
8ca93c59 20#include "eap_peer/eap.h"
67e1b984 21#include "eap_peer/eap_methods.h"
efc58df2 22#include "eapol_supp/eapol_supp_sm.h"
6ede8a7e 23#include "rsn_supp/wpa.h"
afc064fe 24#include "wpa_supplicant_i.h"
73c41a8f 25#include "config.h"
5ed7880d 26#include "config_ssid.h"
afc064fe 27#include "bss.h"
b02fe7ff 28#include "scan.h"
67e1b984 29#include "notify.h"
270c9a43 30#include "driver_i.h"
afc064fe 31#include "gas_query.h"
2249d714 32#include "hs20_supplicant.h"
afc064fe
JM		 33#include "interworking.h"
34
35
3b840b67
JM		 36#if defined(EAP_SIM) | defined(EAP_SIM_DYNAMIC)
37#define INTERWORKING_3GPP
38#else
39#if defined(EAP_AKA) | defined(EAP_AKA_DYNAMIC)
40#define INTERWORKING_3GPP
41#else
42#if defined(EAP_AKA_PRIME) | defined(EAP_AKA_PRIME_DYNAMIC)
43#define INTERWORKING_3GPP
44#endif
45#endif
46#endif
47
afc064fe 48static void interworking_next_anqp_fetch(struct wpa_supplicant *wpa_s);
b618a469 49static struct wpa_cred * interworking_credentials_available_realm(
28f2a7c4
JM		 50 struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int ignore_bw,
51 int *excluded);
b618a469 52static struct wpa_cred * interworking_credentials_available_3gpp(
28f2a7c4
JM		 53 struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int ignore_bw,
54 int *excluded);
afc064fe
JM		 55
56
751ac997
JM		 57static int cred_prio_cmp(const struct wpa_cred *a, const struct wpa_cred *b)
58{
59 if (a->priority > b->priority)
60 return 1;
61 if (a->priority < b->priority)
62 return -1;
74794891
JM		 63 if (a->provisioning_sp == NULL || b->provisioning_sp == NULL ||
64 os_strcmp(a->provisioning_sp, b->provisioning_sp) != 0)
65 return 0;
66 if (a->sp_priority < b->sp_priority)
67 return 1;
68 if (a->sp_priority > b->sp_priority)
69 return -1;
751ac997
JM		 70 return 0;
71}
72
73
08410f08
JM		 74static void interworking_reconnect(struct wpa_supplicant *wpa_s)
75{
a8826b18
JM		 76 unsigned int tried;
77
08410f08
JM		 78 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
79 wpa_supplicant_cancel_sched_scan(wpa_s);
c2805909 80 wpa_s->own_disconnect_req = 1;
08410f08
JM		 81 wpa_supplicant_deauthenticate(wpa_s,
82 WLAN_REASON_DEAUTH_LEAVING);
83 }
84 wpa_s->disconnected = 0;
85 wpa_s->reassociate = 1;
a8826b18
JM		 86 tried = wpa_s->interworking_fast_assoc_tried;
87 wpa_s->interworking_fast_assoc_tried = 1;
a594e2a9 88
a8826b18 89 if (!tried && wpa_supplicant_fast_associate(wpa_s) >= 0)
cecdddc1 90 return;
a594e2a9 91
a8826b18 92 wpa_s->interworking_fast_assoc_tried = 0;
08410f08
JM		 93 wpa_supplicant_req_scan(wpa_s, 0, 0);
94}
95
96
afc064fe
JM		 97static struct wpabuf * anqp_build_req(u16 info_ids[], size_t num_ids,
98 struct wpabuf *extra)
99{
100 struct wpabuf *buf;
101 size_t i;
102 u8 *len_pos;
103
104 buf = gas_anqp_build_initial_req(0, 4 + num_ids * 2 +
105 (extra ? wpabuf_len(extra) : 0));
106 if (buf == NULL)
107 return NULL;
108
109 len_pos = gas_anqp_add_element(buf, ANQP_QUERY_LIST);
110 for (i = 0; i < num_ids; i++)
111 wpabuf_put_le16(buf, info_ids[i]);
112 gas_anqp_set_element_len(buf, len_pos);
113 if (extra)
114 wpabuf_put_buf(buf, extra);
115
116 gas_anqp_set_len(buf);
117
118 return buf;
119}
120
121
122static void interworking_anqp_resp_cb(void *ctx, const u8 *dst,
123 u8 dialog_token,
124 enum gas_query_result result,
125 const struct wpabuf *adv_proto,
126 const struct wpabuf *resp,
127 u16 status_code)
128{
129 struct wpa_supplicant *wpa_s = ctx;
130
b572df86
JM		 131 wpa_printf(MSG_DEBUG, "ANQP: Response callback dst=" MACSTR
132 " dialog_token=%u result=%d status_code=%u",
133 MAC2STR(dst), dialog_token, result, status_code);
afc064fe
JM		 134 anqp_resp_cb(wpa_s, dst, dialog_token, result, adv_proto, resp,
135 status_code);
136 interworking_next_anqp_fetch(wpa_s);
137}
138
139
7ff83367
JM		 140static int cred_with_roaming_consortium(struct wpa_supplicant *wpa_s)
141{
142 struct wpa_cred *cred;
143
144 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
145 if (cred->roaming_consortium_len)
146 return 1;
f47c1452
JM		 147 if (cred->required_roaming_consortium_len)
148 return 1;
7ff83367
JM		 149 }
150 return 0;
151}
152
153
154static int cred_with_3gpp(struct wpa_supplicant *wpa_s)
155{
156 struct wpa_cred *cred;
157
158 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
159 if (cred->pcsc || cred->imsi)
160 return 1;
161 }
162 return 0;
163}
164
165
166static int cred_with_nai_realm(struct wpa_supplicant *wpa_s)
167{
168 struct wpa_cred *cred;
169
170 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
171 if (cred->pcsc || cred->imsi)
172 continue;
173 if (!cred->eap_method)
174 return 1;
175 if (cred->realm && cred->roaming_consortium_len == 0)
176 return 1;
177 }
178 return 0;
179}
180
181
182static int cred_with_domain(struct wpa_supplicant *wpa_s)
183{
184 struct wpa_cred *cred;
185
186 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
bc00053c
JM		 187 if (cred->domain || cred->pcsc || cred->imsi ||
188 cred->roaming_partner)
7ff83367
JM		 189 return 1;
190 }
191 return 0;
192}
193
194
4cad9df1 195#ifdef CONFIG_HS20
33fb8c52 196
4cad9df1
JM		 197static int cred_with_min_backhaul(struct wpa_supplicant *wpa_s)
198{
199 struct wpa_cred *cred;
200
201 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
202 if (cred->min_dl_bandwidth_home ||
203 cred->min_ul_bandwidth_home ||
204 cred->min_dl_bandwidth_roaming ||
205 cred->min_ul_bandwidth_roaming)
206 return 1;
207 }
208 return 0;
209}
33fb8c52
JM		 210
211
212static int cred_with_conn_capab(struct wpa_supplicant *wpa_s)
213{
214 struct wpa_cred *cred;
215
216 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
217 if (cred->num_req_conn_capab)
218 return 1;
219 }
220 return 0;
221}
222
4cad9df1
JM		 223#endif /* CONFIG_HS20 */
224
225
7ff83367
JM		 226static int additional_roaming_consortiums(struct wpa_bss *bss)
227{
228 const u8 *ie;
229 ie = wpa_bss_get_ie(bss, WLAN_EID_ROAMING_CONSORTIUM);
230 if (ie == NULL || ie[1] == 0)
231 return 0;
232 return ie[2]; /* Number of ANQP OIs */
233}
234
235
d1ec319f
JM		 236static void interworking_continue_anqp(void *eloop_ctx, void *sock_ctx)
237{
238 struct wpa_supplicant *wpa_s = eloop_ctx;
239 interworking_next_anqp_fetch(wpa_s);
240}
241
242
afc064fe
JM		 243static int interworking_anqp_send_req(struct wpa_supplicant *wpa_s,
244 struct wpa_bss *bss)
245{
246 struct wpabuf *buf;
247 int ret = 0;
248 int res;
7ff83367
JM		 249 u16 info_ids[8];
250 size_t num_info_ids = 0;
afc064fe 251 struct wpabuf *extra = NULL;
7ff83367 252 int all = wpa_s->fetch_all_anqp;
afc064fe 253
99805a0e
BG		 254 wpa_msg(wpa_s, MSG_DEBUG, "Interworking: ANQP Query Request to " MACSTR,
255 MAC2STR(bss->bssid));
17b8995c 256 wpa_s->interworking_gas_bss = bss;
afc064fe 257
7ff83367
JM		 258 info_ids[num_info_ids++] = ANQP_CAPABILITY_LIST;
259 if (all) {
260 info_ids[num_info_ids++] = ANQP_VENUE_NAME;
261 info_ids[num_info_ids++] = ANQP_NETWORK_AUTH_TYPE;
262 }
263 if (all || (cred_with_roaming_consortium(wpa_s) &&
264 additional_roaming_consortiums(bss)))
265 info_ids[num_info_ids++] = ANQP_ROAMING_CONSORTIUM;
266 if (all)
267 info_ids[num_info_ids++] = ANQP_IP_ADDR_TYPE_AVAILABILITY;
268 if (all || cred_with_nai_realm(wpa_s))
269 info_ids[num_info_ids++] = ANQP_NAI_REALM;
62f736dd 270 if (all || cred_with_3gpp(wpa_s)) {
7ff83367 271 info_ids[num_info_ids++] = ANQP_3GPP_CELLULAR_NETWORK;
62f736dd
JT		 272 wpa_supplicant_scard_init(wpa_s, NULL);
273 }
7ff83367
JM		 274 if (all || cred_with_domain(wpa_s))
275 info_ids[num_info_ids++] = ANQP_DOMAIN_NAME;
276 wpa_hexdump(MSG_DEBUG, "Interworking: ANQP Query info",
277 (u8 *) info_ids, num_info_ids * 2);
278
2249d714
JM		 279#ifdef CONFIG_HS20
280 if (wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE)) {
281 u8 *len_pos;
282
283 extra = wpabuf_alloc(100);
284 if (!extra)
285 return -1;
286
287 len_pos = gas_anqp_add_element(extra, ANQP_VENDOR_SPECIFIC);
288 wpabuf_put_be24(extra, OUI_WFA);
289 wpabuf_put_u8(extra, HS20_ANQP_OUI_TYPE);
290 wpabuf_put_u8(extra, HS20_STYPE_QUERY_LIST);
291 wpabuf_put_u8(extra, 0); /* Reserved */
292 wpabuf_put_u8(extra, HS20_STYPE_CAPABILITY_LIST);
4cad9df1 293 if (all)
7ff83367
JM		 294 wpabuf_put_u8(extra,
295 HS20_STYPE_OPERATOR_FRIENDLY_NAME);
4cad9df1 296 if (all || cred_with_min_backhaul(wpa_s))
7ff83367 297 wpabuf_put_u8(extra, HS20_STYPE_WAN_METRICS);
33fb8c52 298 if (all || cred_with_conn_capab(wpa_s))
7ff83367 299 wpabuf_put_u8(extra, HS20_STYPE_CONNECTION_CAPABILITY);
4cad9df1 300 if (all)
7ff83367 301 wpabuf_put_u8(extra, HS20_STYPE_OPERATING_CLASS);
4cad9df1 302 if (all)
1d2215fc 303 wpabuf_put_u8(extra, HS20_STYPE_OSU_PROVIDERS_LIST);
2249d714
JM		 304 gas_anqp_set_element_len(extra, len_pos);
305 }
306#endif /* CONFIG_HS20 */
307
7ff83367 308 buf = anqp_build_req(info_ids, num_info_ids, extra);
afc064fe
JM		 309 wpabuf_free(extra);
310 if (buf == NULL)
311 return -1;
312
313 res = gas_query_req(wpa_s->gas, bss->bssid, bss->freq, buf,
314 interworking_anqp_resp_cb, wpa_s);
315 if (res < 0) {
99805a0e 316 wpa_msg(wpa_s, MSG_DEBUG, "ANQP: Failed to send Query Request");
24c694b4 317 wpabuf_free(buf);
afc064fe 318 ret = -1;
d1ec319f
JM		 319 eloop_register_timeout(0, 0, interworking_continue_anqp, wpa_s,
320 NULL);
afc064fe 321 } else
99805a0e
BG		 322 wpa_msg(wpa_s, MSG_DEBUG,
323 "ANQP: Query started with dialog token %u", res);
afc064fe 324
afc064fe
JM		 325 return ret;
326}
327
328
73c41a8f
JM		 329struct nai_realm_eap {
330 u8 method;
331 u8 inner_method;
332 enum nai_realm_eap_auth_inner_non_eap inner_non_eap;
333 u8 cred_type;
334 u8 tunneled_cred_type;
335};
336
337struct nai_realm {
338 u8 encoding;
339 char *realm;
340 u8 eap_count;
341 struct nai_realm_eap *eap;
342};
343
344
345static void nai_realm_free(struct nai_realm *realms, u16 count)
346{
347 u16 i;
348
349 if (realms == NULL)
350 return;
351 for (i = 0; i < count; i++) {
352 os_free(realms[i].eap);
353 os_free(realms[i].realm);
354 }
355 os_free(realms);
356}
357
358
359static const u8 * nai_realm_parse_eap(struct nai_realm_eap *e, const u8 *pos,
360 const u8 *end)
361{
362 u8 elen, auth_count, a;
363 const u8 *e_end;
364
67fea55c 365 if (end - pos < 3) {
73c41a8f
JM		 366 wpa_printf(MSG_DEBUG, "No room for EAP Method fixed fields");
367 return NULL;
368 }
369
370 elen = *pos++;
67fea55c 371 if (elen > end - pos || elen < 2) {
73c41a8f
JM		 372 wpa_printf(MSG_DEBUG, "No room for EAP Method subfield");
373 return NULL;
374 }
375 e_end = pos + elen;
376 e->method = *pos++;
377 auth_count = *pos++;
378 wpa_printf(MSG_DEBUG, "EAP Method: len=%u method=%u auth_count=%u",
379 elen, e->method, auth_count);
380
381 for (a = 0; a < auth_count; a++) {
382 u8 id, len;
383
67fea55c
JM		 384 if (end - pos < 2) {
385 wpa_printf(MSG_DEBUG,
386 "No room for Authentication Parameter subfield header");
73c41a8f
JM		 387 return NULL;
388 }
389
390 id = *pos++;
391 len = *pos++;
67fea55c
JM		 392 if (len > end - pos) {
393 wpa_printf(MSG_DEBUG,
394 "No room for Authentication Parameter subfield");
395 return NULL;
396 }
73c41a8f
JM		 397
398 switch (id) {
399 case NAI_REALM_EAP_AUTH_NON_EAP_INNER_AUTH:
400 if (len < 1)
401 break;
402 e->inner_non_eap = *pos;
403 if (e->method != EAP_TYPE_TTLS)
404 break;
405 switch (*pos) {
406 case NAI_REALM_INNER_NON_EAP_PAP:
407 wpa_printf(MSG_DEBUG, "EAP-TTLS/PAP");
408 break;
409 case NAI_REALM_INNER_NON_EAP_CHAP:
410 wpa_printf(MSG_DEBUG, "EAP-TTLS/CHAP");
411 break;
412 case NAI_REALM_INNER_NON_EAP_MSCHAP:
413 wpa_printf(MSG_DEBUG, "EAP-TTLS/MSCHAP");
414 break;
415 case NAI_REALM_INNER_NON_EAP_MSCHAPV2:
416 wpa_printf(MSG_DEBUG, "EAP-TTLS/MSCHAPV2");
417 break;
418 }
419 break;
420 case NAI_REALM_EAP_AUTH_INNER_AUTH_EAP_METHOD:
421 if (len < 1)
422 break;
423 e->inner_method = *pos;
424 wpa_printf(MSG_DEBUG, "Inner EAP method: %u",
425 e->inner_method);
426 break;
427 case NAI_REALM_EAP_AUTH_CRED_TYPE:
428 if (len < 1)
429 break;
430 e->cred_type = *pos;
431 wpa_printf(MSG_DEBUG, "Credential Type: %u",
432 e->cred_type);
433 break;
434 case NAI_REALM_EAP_AUTH_TUNNELED_CRED_TYPE:
435 if (len < 1)
436 break;
437 e->tunneled_cred_type = *pos;
438 wpa_printf(MSG_DEBUG, "Tunneled EAP Method Credential "
439 "Type: %u", e->tunneled_cred_type);
440 break;
441 default:
442 wpa_printf(MSG_DEBUG, "Unsupported Authentication "
443 "Parameter: id=%u len=%u", id, len);
444 wpa_hexdump(MSG_DEBUG, "Authentication Parameter "
445 "Value", pos, len);
446 break;
447 }
448
449 pos += len;
450 }
451
452 return e_end;
453}
454
455
456static const u8 * nai_realm_parse_realm(struct nai_realm *r, const u8 *pos,
457 const u8 *end)
458{
459 u16 len;
460 const u8 *f_end;
461 u8 realm_len, e;
462
463 if (end - pos < 4) {
464 wpa_printf(MSG_DEBUG, "No room for NAI Realm Data "
465 "fixed fields");
466 return NULL;
467 }
468
469 len = WPA_GET_LE16(pos); /* NAI Realm Data field Length */
470 pos += 2;
67fea55c 471 if (len > end - pos || len < 3) {
73c41a8f
JM		 472 wpa_printf(MSG_DEBUG, "No room for NAI Realm Data "
473 "(len=%u; left=%u)",
474 len, (unsigned int) (end - pos));
475 return NULL;
476 }
477 f_end = pos + len;
478
479 r->encoding = *pos++;
480 realm_len = *pos++;
67fea55c 481 if (realm_len > f_end - pos) {
73c41a8f
JM		 482 wpa_printf(MSG_DEBUG, "No room for NAI Realm "
483 "(len=%u; left=%u)",
484 realm_len, (unsigned int) (f_end - pos));
485 return NULL;
486 }
487 wpa_hexdump_ascii(MSG_DEBUG, "NAI Realm", pos, realm_len);
5e24dc8a 488 r->realm = dup_binstr(pos, realm_len);
73c41a8f
JM		 489 if (r->realm == NULL)
490 return NULL;
73c41a8f
JM		 491 pos += realm_len;
492
67fea55c 493 if (f_end - pos < 1) {
73c41a8f
JM		 494 wpa_printf(MSG_DEBUG, "No room for EAP Method Count");
495 return NULL;
496 }
497 r->eap_count = *pos++;
498 wpa_printf(MSG_DEBUG, "EAP Count: %u", r->eap_count);
67fea55c 499 if (r->eap_count * 3 > f_end - pos) {
73c41a8f
JM		 500 wpa_printf(MSG_DEBUG, "No room for EAP Methods");
501 return NULL;
502 }
f9884c09 503 r->eap = os_calloc(r->eap_count, sizeof(struct nai_realm_eap));
73c41a8f
JM		 504 if (r->eap == NULL)
505 return NULL;
506
507 for (e = 0; e < r->eap_count; e++) {
508 pos = nai_realm_parse_eap(&r->eap[e], pos, f_end);
509 if (pos == NULL)
510 return NULL;
511 }
512
513 return f_end;
514}
515
516
517static struct nai_realm * nai_realm_parse(struct wpabuf *anqp, u16 *count)
518{
519 struct nai_realm *realm;
520 const u8 *pos, *end;
521 u16 i, num;
d84416a2 522 size_t left;
73c41a8f 523
d84416a2
JM		 524 if (anqp == NULL)
525 return NULL;
526 left = wpabuf_len(anqp);
527 if (left < 2)
73c41a8f
JM		 528 return NULL;
529
530 pos = wpabuf_head_u8(anqp);
d84416a2 531 end = pos + left;
73c41a8f
JM		 532 num = WPA_GET_LE16(pos);
533 wpa_printf(MSG_DEBUG, "NAI Realm Count: %u", num);
534 pos += 2;
d84416a2 535 left -= 2;
73c41a8f 536
d84416a2 537 if (num > left / 5) {
73c41a8f
JM		 538 wpa_printf(MSG_DEBUG, "Invalid NAI Realm Count %u - not "
539 "enough data (%u octets) for that many realms",
d84416a2 540 num, (unsigned int) left);
73c41a8f
JM		 541 return NULL;
542 }
543
f9884c09 544 realm = os_calloc(num, sizeof(struct nai_realm));
73c41a8f
JM		 545 if (realm == NULL)
546 return NULL;
547
548 for (i = 0; i < num; i++) {
549 pos = nai_realm_parse_realm(&realm[i], pos, end);
550 if (pos == NULL) {
551 nai_realm_free(realm, num);
552 return NULL;
553 }
554 }
555
556 *count = num;
557 return realm;
558}
559
560
561static int nai_realm_match(struct nai_realm *realm, const char *home_realm)
562{
563 char *tmp, *pos, *end;
564 int match = 0;
565
3b840b67 566 if (realm->realm == NULL || home_realm == NULL)
73c41a8f
JM		 567 return 0;
568
569 if (os_strchr(realm->realm, ';') == NULL)
570 return os_strcasecmp(realm->realm, home_realm) == 0;
571
572 tmp = os_strdup(realm->realm);
573 if (tmp == NULL)
574 return 0;
575
576 pos = tmp;
577 while (*pos) {
578 end = os_strchr(pos, ';');
579 if (end)
580 *end = '\0';
581 if (os_strcasecmp(pos, home_realm) == 0) {
582 match = 1;
583 break;
584 }
585 if (end == NULL)
586 break;
587 pos = end + 1;
588 }
589
590 os_free(tmp);
591
592 return match;
593}
594
595
f45bae5b
BG		 596static int nai_realm_cred_username(struct wpa_supplicant *wpa_s,
597 struct nai_realm_eap *eap)
67e1b984 598{
f45bae5b
BG		 599 if (eap_get_name(EAP_VENDOR_IETF, eap->method) == NULL) {
600 wpa_msg(wpa_s, MSG_DEBUG,
601 "nai-realm-cred-username: EAP method not supported: %d",
602 eap->method);
67e1b984 603 return 0; /* method not supported */
f45bae5b 604 }
67e1b984 605
1f5d2dd3
JM		 606 if (eap->method != EAP_TYPE_TTLS && eap->method != EAP_TYPE_PEAP &&
607 eap->method != EAP_TYPE_FAST) {
67e1b984 608 /* Only tunneled methods with username/password supported */
f45bae5b
BG		 609 wpa_msg(wpa_s, MSG_DEBUG,
610 "nai-realm-cred-username: Method: %d is not TTLS, PEAP, or FAST",
611 eap->method);
67e1b984
JM		 612 return 0;
613 }
614
1f5d2dd3 615 if (eap->method == EAP_TYPE_PEAP || eap->method == EAP_TYPE_FAST) {
03c961e5 616 if (eap->inner_method &&
f45bae5b
BG		 617 eap_get_name(EAP_VENDOR_IETF, eap->inner_method) == NULL) {
618 wpa_msg(wpa_s, MSG_DEBUG,
619 "nai-realm-cred-username: PEAP/FAST: Inner method not supported: %d",
620 eap->inner_method);
03c961e5 621 return 0;
f45bae5b 622 }
03c961e5 623 if (!eap->inner_method &&
f45bae5b
BG		 624 eap_get_name(EAP_VENDOR_IETF, EAP_TYPE_MSCHAPV2) == NULL) {
625 wpa_msg(wpa_s, MSG_DEBUG,
626 "nai-realm-cred-username: MSCHAPv2 not supported");
03c961e5 627 return 0;
f45bae5b 628 }
03c961e5 629 }
67e1b984
JM		 630
631 if (eap->method == EAP_TYPE_TTLS) {
632 if (eap->inner_method == 0 && eap->inner_non_eap == 0)
2047e596 633 return 1; /* Assume TTLS/MSCHAPv2 is used */
67e1b984 634 if (eap->inner_method &&
f45bae5b
BG		 635 eap_get_name(EAP_VENDOR_IETF, eap->inner_method) == NULL) {
636 wpa_msg(wpa_s, MSG_DEBUG,
637 "nai-realm-cred-username: TTLS, but inner not supported: %d",
638 eap->inner_method);
67e1b984 639 return 0;
f45bae5b 640 }
67e1b984
JM		 641 if (eap->inner_non_eap &&
642 eap->inner_non_eap != NAI_REALM_INNER_NON_EAP_PAP &&
643 eap->inner_non_eap != NAI_REALM_INNER_NON_EAP_CHAP &&
644 eap->inner_non_eap != NAI_REALM_INNER_NON_EAP_MSCHAP &&
f45bae5b
BG		 645 eap->inner_non_eap != NAI_REALM_INNER_NON_EAP_MSCHAPV2) {
646 wpa_msg(wpa_s, MSG_DEBUG,
647 "nai-realm-cred-username: TTLS, inner-non-eap not supported: %d",
648 eap->inner_non_eap);
67e1b984 649 return 0;
f45bae5b 650 }
67e1b984
JM		 651 }
652
653 if (eap->inner_method &&
654 eap->inner_method != EAP_TYPE_GTC &&
f45bae5b
BG		 655 eap->inner_method != EAP_TYPE_MSCHAPV2) {
656 wpa_msg(wpa_s, MSG_DEBUG,
657 "nai-realm-cred-username: inner-method not GTC or MSCHAPv2: %d",
658 eap->inner_method);
67e1b984 659 return 0;
f45bae5b 660 }
67e1b984
JM		 661
662 return 1;
663}
664
665
f45bae5b
BG		 666static int nai_realm_cred_cert(struct wpa_supplicant *wpa_s,
667 struct nai_realm_eap *eap)
11e4f46a 668{
f45bae5b
BG		 669 if (eap_get_name(EAP_VENDOR_IETF, eap->method) == NULL) {
670 wpa_msg(wpa_s, MSG_DEBUG,
671 "nai-realm-cred-cert: Method not supported: %d",
672 eap->method);
11e4f46a 673 return 0; /* method not supported */
f45bae5b 674 }
11e4f46a
JM		 675
676 if (eap->method != EAP_TYPE_TLS) {
677 /* Only EAP-TLS supported for credential authentication */
f45bae5b
BG		 678 wpa_msg(wpa_s, MSG_DEBUG,
679 "nai-realm-cred-cert: Method not TLS: %d",
680 eap->method);
11e4f46a
JM		 681 return 0;
682 }
683
684 return 1;
685}
686
687
f45bae5b
BG		 688static struct nai_realm_eap * nai_realm_find_eap(struct wpa_supplicant *wpa_s,
689 struct wpa_cred *cred,
19df9b07 690 struct nai_realm *realm)
67e1b984
JM		 691{
692 u8 e;
693
5a5aab7f 694 if (cred->username == NULL ||
1bb7b8e8 695 cred->username[0] == '\0' ||
11e4f46a
JM		 696 ((cred->password == NULL ||
697 cred->password[0] == '\0') &&
698 (cred->private_key == NULL ||
f45bae5b
BG		 699 cred->private_key[0] == '\0'))) {
700 wpa_msg(wpa_s, MSG_DEBUG,
701 "nai-realm-find-eap: incomplete cred info: username: %s password: %s private_key: %s",
702 cred->username ? cred->username : "NULL",
703 cred->password ? cred->password : "NULL",
704 cred->private_key ? cred->private_key : "NULL");
67e1b984 705 return NULL;
f45bae5b 706 }
67e1b984
JM		 707
708 for (e = 0; e < realm->eap_count; e++) {
709 struct nai_realm_eap *eap = &realm->eap[e];
11e4f46a 710 if (cred->password && cred->password[0] &&
f45bae5b 711 nai_realm_cred_username(wpa_s, eap))
11e4f46a
JM		 712 return eap;
713 if (cred->private_key && cred->private_key[0] &&
f45bae5b 714 nai_realm_cred_cert(wpa_s, eap))
67e1b984
JM		 715 return eap;
716 }
717
718 return NULL;
719}
720
721
3b840b67
JM		 722#ifdef INTERWORKING_3GPP
723
c21246f5 724static int plmn_id_match(struct wpabuf *anqp, const char *imsi, int mnc_len)
3b840b67 725{
0b9d3b22 726 u8 plmn[3], plmn2[3];
3b840b67
JM		 727 const u8 *pos, *end;
728 u8 udhl;
729
0b9d3b22
JM		 730 /*
731 * See Annex A of 3GPP TS 24.234 v8.1.0 for description. The network
732 * operator is allowed to include only two digits of the MNC, so allow
733 * matches based on both two and three digit MNC assumptions. Since some
734 * SIM/USIM cards may not expose MNC length conveniently, we may be
735 * provided the default MNC length 3 here and as such, checking with MNC
736 * length 2 is justifiable even though 3GPP TS 24.234 does not mention
737 * that case. Anyway, MCC/MNC pair where both 2 and 3 digit MNC is used
738 * with otherwise matching values would not be good idea in general, so
739 * this should not result in selecting incorrect networks.
740 */
741 /* Match with 3 digit MNC */
3b840b67 742 plmn[0] = (imsi[0] - '0') | ((imsi[1] - '0') << 4);
0b9d3b22 743 plmn[1] = (imsi[2] - '0') | ((imsi[5] - '0') << 4);
3b840b67 744 plmn[2] = (imsi[3] - '0') | ((imsi[4] - '0') << 4);
0b9d3b22
JM		 745 /* Match with 2 digit MNC */
746 plmn2[0] = (imsi[0] - '0') | ((imsi[1] - '0') << 4);
747 plmn2[1] = (imsi[2] - '0') | 0xf0;
748 plmn2[2] = (imsi[3] - '0') | ((imsi[4] - '0') << 4);
3b840b67
JM		 749
750 if (anqp == NULL)
751 return 0;
752 pos = wpabuf_head_u8(anqp);
753 end = pos + wpabuf_len(anqp);
67fea55c 754 if (end - pos < 2)
3b840b67
JM		 755 return 0;
756 if (*pos != 0) {
757 wpa_printf(MSG_DEBUG, "Unsupported GUD version 0x%x", *pos);
758 return 0;
759 }
760 pos++;
761 udhl = *pos++;
67fea55c 762 if (udhl > end - pos) {
3b840b67
JM		 763 wpa_printf(MSG_DEBUG, "Invalid UDHL");
764 return 0;
765 }
766 end = pos + udhl;
767
0b9d3b22
JM		 768 wpa_printf(MSG_DEBUG, "Interworking: Matching against MCC/MNC alternatives: %02x:%02x:%02x or %02x:%02x:%02x (IMSI %s, MNC length %d)",
769 plmn[0], plmn[1], plmn[2], plmn2[0], plmn2[1], plmn2[2],
770 imsi, mnc_len);
771
67fea55c 772 while (end - pos >= 2) {
3b840b67
JM		 773 u8 iei, len;
774 const u8 *l_end;
775 iei = *pos++;
776 len = *pos++ & 0x7f;
67fea55c 777 if (len > end - pos)
3b840b67
JM		 778 break;
779 l_end = pos + len;
780
781 if (iei == 0 && len > 0) {
782 /* PLMN List */
783 u8 num, i;
0b9d3b22
JM		 784 wpa_hexdump(MSG_DEBUG, "Interworking: PLMN List information element",
785 pos, len);
3b840b67
JM		 786 num = *pos++;
787 for (i = 0; i < num; i++) {
67fea55c 788 if (l_end - pos < 3)
3b840b67 789 break;
0b9d3b22
JM		 790 if (os_memcmp(pos, plmn, 3) == 0 ||
791 os_memcmp(pos, plmn2, 3) == 0)
3b840b67 792 return 1; /* Found matching PLMN */
8f234012 793 pos += 3;
3b840b67 794 }
0b9d3b22
JM		 795 } else {
796 wpa_hexdump(MSG_DEBUG, "Interworking: Unrecognized 3GPP information element",
797 pos, len);
3b840b67
JM		 798 }
799
800 pos = l_end;
801 }
802
803 return 0;
804}
805
806
d8e59fea 807static int build_root_nai(char *nai, size_t nai_len, const char *imsi,
632c9458 808 size_t mnc_len, char prefix)
3b840b67
JM		 809{
810 const char *sep, *msin;
9914c96f 811 char *end, *pos;
3b840b67
JM		 812 size_t msin_len, plmn_len;
813
814 /*
815 * TS 23.003, Clause 14 (3GPP to WLAN Interworking)
816 * Root NAI:
817 * <aka:0|sim:1><IMSI>@wlan.mnc<MNC>.mcc<MCC>.3gppnetwork.org
818 * <MNC> is zero-padded to three digits in case two-digit MNC is used
819 */
820
821 if (imsi == NULL || os_strlen(imsi) > 16) {
822 wpa_printf(MSG_DEBUG, "No valid IMSI available");
823 return -1;
824 }
825 sep = os_strchr(imsi, '-');
632c9458
JM		 826 if (sep) {
827 plmn_len = sep - imsi;
828 msin = sep + 1;
829 } else if (mnc_len && os_strlen(imsi) >= 3 + mnc_len) {
830 plmn_len = 3 + mnc_len;
831 msin = imsi + plmn_len;
832 } else
3b840b67 833 return -1;
3b840b67
JM		 834 if (plmn_len != 5 && plmn_len != 6)
835 return -1;
3b840b67
JM		 836 msin_len = os_strlen(msin);
837
838 pos = nai;
d8e59fea 839 end = nai + nai_len;
9914c96f
JM		 840 if (prefix)
841 *pos++ = prefix;
3b840b67
JM		 842 os_memcpy(pos, imsi, plmn_len);
843 pos += plmn_len;
844 os_memcpy(pos, msin, msin_len);
845 pos += msin_len;
846 pos += os_snprintf(pos, end - pos, "@wlan.mnc");
847 if (plmn_len == 5) {
848 *pos++ = '0';
849 *pos++ = imsi[3];
850 *pos++ = imsi[4];
851 } else {
852 *pos++ = imsi[3];
853 *pos++ = imsi[4];
854 *pos++ = imsi[5];
855 }
5dbbf369
JM		 856 os_snprintf(pos, end - pos, ".mcc%c%c%c.3gppnetwork.org",
857 imsi[0], imsi[1], imsi[2]);
3b840b67 858
9914c96f
JM		 859 return 0;
860}
861
862
863static int set_root_nai(struct wpa_ssid *ssid, const char *imsi, char prefix)
864{
865 char nai[100];
632c9458 866 if (build_root_nai(nai, sizeof(nai), imsi, 0, prefix) < 0)
9914c96f 867 return -1;
3b840b67
JM		 868 return wpa_config_set_quoted(ssid, "identity", nai);
869}
870
871#endif /* INTERWORKING_3GPP */
872
873
d28f4e44
JM		 874static int already_connected(struct wpa_supplicant *wpa_s,
875 struct wpa_cred *cred, struct wpa_bss *bss)
876{
b7fb98f0
JM		 877 struct wpa_ssid *ssid, *sel_ssid;
878 struct wpa_bss *selected;
d28f4e44
JM		 879
880 if (wpa_s->wpa_state < WPA_ASSOCIATED || wpa_s->current_ssid == NULL)
881 return 0;
882
883 ssid = wpa_s->current_ssid;
884 if (ssid->parent_cred != cred)
885 return 0;
886
887 if (ssid->ssid_len != bss->ssid_len ||
888 os_memcmp(ssid->ssid, bss->ssid, bss->ssid_len) != 0)
889 return 0;
890
b7fb98f0
JM		 891 sel_ssid = NULL;
892 selected = wpa_supplicant_pick_network(wpa_s, &sel_ssid);
893 if (selected && sel_ssid && sel_ssid->priority > ssid->priority)
894 return 0; /* higher priority network in scan results */
895
d28f4e44
JM		 896 return 1;
897}
898
899
6ede8a7e
JM		 900static void remove_duplicate_network(struct wpa_supplicant *wpa_s,
901 struct wpa_cred *cred,
902 struct wpa_bss *bss)
903{
904 struct wpa_ssid *ssid;
905
906 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
907 if (ssid->parent_cred != cred)
908 continue;
909 if (ssid->ssid_len != bss->ssid_len ||
910 os_memcmp(ssid->ssid, bss->ssid, bss->ssid_len) != 0)
911 continue;
912
913 break;
914 }
915
916 if (ssid == NULL)
917 return;
918
919 wpa_printf(MSG_DEBUG, "Interworking: Remove duplicate network entry for the same credential");
920
921 if (ssid == wpa_s->current_ssid) {
922 wpa_sm_set_config(wpa_s->wpa, NULL);
923 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
c2805909 924 wpa_s->own_disconnect_req = 1;
6ede8a7e
JM		 925 wpa_supplicant_deauthenticate(wpa_s,
926 WLAN_REASON_DEAUTH_LEAVING);
927 }
928
929 wpas_notify_network_removed(wpa_s, ssid);
930 wpa_config_remove_network(wpa_s->conf, ssid->id);
931}
932
933
3c8e4ec0
JM		 934static int interworking_set_hs20_params(struct wpa_supplicant *wpa_s,
935 struct wpa_ssid *ssid)
8601b503 936{
270c9a43
JM		 937 const char *key_mgmt = NULL;
938#ifdef CONFIG_IEEE80211R
939 int res;
940 struct wpa_driver_capa capa;
941
942 res = wpa_drv_get_capa(wpa_s, &capa);
943 if (res == 0 && capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_FT) {
944 key_mgmt = wpa_s->conf->pmf != NO_MGMT_FRAME_PROTECTION ?
945 "WPA-EAP WPA-EAP-SHA256 FT-EAP" :
946 "WPA-EAP FT-EAP";
947 }
948#endif /* CONFIG_IEEE80211R */
949
950 if (!key_mgmt)
951 key_mgmt = wpa_s->conf->pmf != NO_MGMT_FRAME_PROTECTION ?
952 "WPA-EAP WPA-EAP-SHA256" : "WPA-EAP";
953 if (wpa_config_set(ssid, "key_mgmt", key_mgmt, 0) < 0)
8601b503
JM		 954 return -1;
955 if (wpa_config_set(ssid, "proto", "RSN", 0) < 0)
956 return -1;
957 if (wpa_config_set(ssid, "pairwise", "CCMP", 0) < 0)
958 return -1;
959 return 0;
960}
961
962
3b840b67 963static int interworking_connect_3gpp(struct wpa_supplicant *wpa_s,
b618a469 964 struct wpa_cred *cred,
f91a512f 965 struct wpa_bss *bss, int only_add)
3b840b67
JM		 966{
967#ifdef INTERWORKING_3GPP
968 struct wpa_ssid *ssid;
7e414b21
JM		 969 int eap_type;
970 int res;
971 char prefix;
3b840b67 972
476aed35 973 if (bss->anqp == NULL || bss->anqp->anqp_3gpp == NULL)
1bb7b8e8
JM		 974 return -1;
975
99805a0e
BG		 976 wpa_msg(wpa_s, MSG_DEBUG, "Interworking: Connect with " MACSTR
977 " (3GPP)", MAC2STR(bss->bssid));
3b840b67 978
d28f4e44
JM		 979 if (already_connected(wpa_s, cred, bss)) {
980 wpa_msg(wpa_s, MSG_INFO, INTERWORKING_ALREADY_CONNECTED MACSTR,
981 MAC2STR(bss->bssid));
f91a512f 982 return wpa_s->current_ssid->id;
d28f4e44
JM		 983 }
984
6ede8a7e
JM		 985 remove_duplicate_network(wpa_s, cred, bss);
986
3b840b67
JM		 987 ssid = wpa_config_add_network(wpa_s->conf);
988 if (ssid == NULL)
989 return -1;
736d4f2d 990 ssid->parent_cred = cred;
3b840b67
JM		 991
992 wpas_notify_network_added(wpa_s, ssid);
993 wpa_config_set_network_defaults(ssid);
1a712d2f 994 ssid->priority = cred->priority;
3b840b67 995 ssid->temporary = 1;
08b26779 996 ssid->ssid = os_zalloc(bss->ssid_len + 1);
3b840b67
JM		 997 if (ssid->ssid == NULL)
998 goto fail;
08b26779
JM		 999 os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
1000 ssid->ssid_len = bss->ssid_len;
13f6a07e 1001 ssid->eap.sim_num = cred->sim_num;
3b840b67 1002
3c8e4ec0 1003 if (interworking_set_hs20_params(wpa_s, ssid) < 0)
1ecd2ada
JM		 1004 goto fail;
1005
7e414b21
JM		 1006 eap_type = EAP_TYPE_SIM;
1007 if (cred->pcsc && wpa_s->scard && scard_supports_umts(wpa_s->scard))
1008 eap_type = EAP_TYPE_AKA;
1009 if (cred->eap_method && cred->eap_method[0].vendor == EAP_VENDOR_IETF) {
1010 if (cred->eap_method[0].method == EAP_TYPE_SIM ||
1011 cred->eap_method[0].method == EAP_TYPE_AKA ||
1012 cred->eap_method[0].method == EAP_TYPE_AKA_PRIME)
1013 eap_type = cred->eap_method[0].method;
1014 }
1015
1016 switch (eap_type) {
1017 case EAP_TYPE_SIM:
1018 prefix = '1';
1019 res = wpa_config_set(ssid, "eap", "SIM", 0);
1020 break;
1021 case EAP_TYPE_AKA:
1022 prefix = '0';
1023 res = wpa_config_set(ssid, "eap", "AKA", 0);
1024 break;
1025 case EAP_TYPE_AKA_PRIME:
1026 prefix = '6';
1027 res = wpa_config_set(ssid, "eap", "AKA'", 0);
1028 break;
1029 default:
1030 res = -1;
1031 break;
1032 }
1033 if (res < 0) {
99805a0e
BG		 1034 wpa_msg(wpa_s, MSG_DEBUG,
1035 "Selected EAP method (%d) not supported", eap_type);
3b840b67
JM		 1036 goto fail;
1037 }
7e414b21
JM		 1038
1039 if (!cred->pcsc && set_root_nai(ssid, cred->imsi, prefix) < 0) {
99805a0e 1040 wpa_msg(wpa_s, MSG_DEBUG, "Failed to set Root NAI");
3b840b67
JM		 1041 goto fail;
1042 }
1043
1bb7b8e8 1044 if (cred->milenage && cred->milenage[0]) {
3b840b67 1045 if (wpa_config_set_quoted(ssid, "password",
1bb7b8e8 1046 cred->milenage) < 0)
3b840b67 1047 goto fail;
d7b01abd 1048 } else if (cred->pcsc) {
3b840b67
JM		 1049 if (wpa_config_set_quoted(ssid, "pcsc", "") < 0)
1050 goto fail;
d7b01abd
JM		 1051 if (wpa_s->conf->pcsc_pin &&
1052 wpa_config_set_quoted(ssid, "pin", wpa_s->conf->pcsc_pin)
1053 < 0)
1054 goto fail;
3b840b67
JM		 1055 }
1056
3d910ef4 1057 wpa_s->next_ssid = ssid;
1a712d2f 1058 wpa_config_update_prio_list(wpa_s->conf);
f91a512f
JM		 1059 if (!only_add)
1060 interworking_reconnect(wpa_s);
3b840b67 1061
f91a512f 1062 return ssid->id;
3b840b67
JM		 1063
1064fail:
1065 wpas_notify_network_removed(wpa_s, ssid);
1066 wpa_config_remove_network(wpa_s->conf, ssid->id);
1067#endif /* INTERWORKING_3GPP */
1068 return -1;
1069}
1070
1071
955567bc
JM		 1072static int roaming_consortium_element_match(const u8 *ie, const u8 *rc_id,
1073 size_t rc_len)
1074{
1075 const u8 *pos, *end;
1076 u8 lens;
1077
1078 if (ie == NULL)
1079 return 0;
1080
1081 pos = ie + 2;
1082 end = ie + 2 + ie[1];
1083
1084 /* Roaming Consortium element:
1085 * Number of ANQP OIs
1086 * OI #1 and #2 lengths
1087 * OI #1, [OI #2], [OI #3]
1088 */
1089
67fea55c 1090 if (end - pos < 2)
955567bc
JM		 1091 return 0;
1092
1093 pos++; /* skip Number of ANQP OIs */
1094 lens = *pos++;
67fea55c 1095 if ((lens & 0x0f) + (lens >> 4) > end - pos)
955567bc
JM		 1096 return 0;
1097
1098 if ((lens & 0x0f) == rc_len && os_memcmp(pos, rc_id, rc_len) == 0)
1099 return 1;
1100 pos += lens & 0x0f;
1101
1102 if ((lens >> 4) == rc_len && os_memcmp(pos, rc_id, rc_len) == 0)
1103 return 1;
1104 pos += lens >> 4;
1105
1106 if (pos < end && (size_t) (end - pos) == rc_len &&
1107 os_memcmp(pos, rc_id, rc_len) == 0)
1108 return 1;
1109
1110 return 0;
1111}
1112
1113
1114static int roaming_consortium_anqp_match(const struct wpabuf *anqp,
1115 const u8 *rc_id, size_t rc_len)
1116{
1117 const u8 *pos, *end;
1118 u8 len;
1119
1120 if (anqp == NULL)
1121 return 0;
1122
1123 pos = wpabuf_head(anqp);
1124 end = pos + wpabuf_len(anqp);
1125
1126 /* Set of <OI Length, OI> duples */
1127 while (pos < end) {
1128 len = *pos++;
67fea55c 1129 if (len > end - pos)
955567bc
JM		 1130 break;
1131 if (len == rc_len && os_memcmp(pos, rc_id, rc_len) == 0)
1132 return 1;
1133 pos += len;
1134 }
1135
1136 return 0;
1137}
1138
1139
1140static int roaming_consortium_match(const u8 *ie, const struct wpabuf *anqp,
1141 const u8 *rc_id, size_t rc_len)
1142{
1143 return roaming_consortium_element_match(ie, rc_id, rc_len) ||
1144 roaming_consortium_anqp_match(anqp, rc_id, rc_len);
1145}
1146
1147
f47c1452
JM		 1148static int cred_no_required_oi_match(struct wpa_cred *cred, struct wpa_bss *bss)
1149{
1150 const u8 *ie;
1151
1152 if (cred->required_roaming_consortium_len == 0)
1153 return 0;
1154
1155 ie = wpa_bss_get_ie(bss, WLAN_EID_ROAMING_CONSORTIUM);
1156
1157 if (ie == NULL &&
1158 (bss->anqp == NULL || bss->anqp->roaming_consortium == NULL))
1159 return 1;
1160
1161 return !roaming_consortium_match(ie,
1162 bss->anqp ?
1163 bss->anqp->roaming_consortium : NULL,
1164 cred->required_roaming_consortium,
1165 cred->required_roaming_consortium_len);
1166}
1167
1168
dbea8ac7
JM		 1169static int cred_excluded_ssid(struct wpa_cred *cred, struct wpa_bss *bss)
1170{
1171 size_t i;
1172
1173 if (!cred->excluded_ssid)
1174 return 0;
1175
1176 for (i = 0; i < cred->num_excluded_ssid; i++) {
1177 struct excluded_ssid *e = &cred->excluded_ssid[i];
1178 if (bss->ssid_len == e->ssid_len &&
1179 os_memcmp(bss->ssid, e->ssid, e->ssid_len) == 0)
1180 return 1;
1181 }
1182
1183 return 0;
1184}
1185
1186
4cad9df1
JM		 1187static int cred_below_min_backhaul(struct wpa_supplicant *wpa_s,
1188 struct wpa_cred *cred, struct wpa_bss *bss)
1189{
876e74aa 1190#ifdef CONFIG_HS20
4cad9df1
JM		 1191 int res;
1192 unsigned int dl_bandwidth, ul_bandwidth;
1193 const u8 *wan;
1194 u8 wan_info, dl_load, ul_load;
1195 u16 lmd;
1196 u32 ul_speed, dl_speed;
1197
1198 if (!cred->min_dl_bandwidth_home &&
1199 !cred->min_ul_bandwidth_home &&
1200 !cred->min_dl_bandwidth_roaming &&
1201 !cred->min_ul_bandwidth_roaming)
1202 return 0; /* No bandwidth constraint specified */
1203
1204 if (bss->anqp == NULL || bss->anqp->hs20_wan_metrics == NULL)
1205 return 0; /* No WAN Metrics known - ignore constraint */
1206
1207 wan = wpabuf_head(bss->anqp->hs20_wan_metrics);
1208 wan_info = wan[0];
1209 if (wan_info & BIT(3))
1210 return 1; /* WAN link at capacity */
1211 lmd = WPA_GET_LE16(wan + 11);
1212 if (lmd == 0)
1213 return 0; /* Downlink/Uplink Load was not measured */
1214 dl_speed = WPA_GET_LE32(wan + 1);
1215 ul_speed = WPA_GET_LE32(wan + 5);
1216 dl_load = wan[9];
1217 ul_load = wan[10];
1218
1219 if (dl_speed >= 0xffffff)
1220 dl_bandwidth = dl_speed / 255 * (255 - dl_load);
1221 else
1222 dl_bandwidth = dl_speed * (255 - dl_load) / 255;
1223
1224 if (ul_speed >= 0xffffff)
1225 ul_bandwidth = ul_speed / 255 * (255 - ul_load);
1226 else
1227 ul_bandwidth = ul_speed * (255 - ul_load) / 255;
1228
1229 res = interworking_home_sp_cred(wpa_s, cred, bss->anqp ?
1230 bss->anqp->domain_name : NULL);
1231 if (res > 0) {
1232 if (cred->min_dl_bandwidth_home > dl_bandwidth)
1233 return 1;
1234 if (cred->min_ul_bandwidth_home > ul_bandwidth)
1235 return 1;
1236 } else {
1237 if (cred->min_dl_bandwidth_roaming > dl_bandwidth)
1238 return 1;
1239 if (cred->min_ul_bandwidth_roaming > ul_bandwidth)
1240 return 1;
1241 }
876e74aa 1242#endif /* CONFIG_HS20 */
4cad9df1
JM		 1243
1244 return 0;
1245}
1246
1247
a45b2dc5
JM		 1248static int cred_over_max_bss_load(struct wpa_supplicant *wpa_s,
1249 struct wpa_cred *cred, struct wpa_bss *bss)
1250{
1251 const u8 *ie;
1252 int res;
1253
1254 if (!cred->max_bss_load)
1255 return 0; /* No BSS Load constraint specified */
1256
1257 ie = wpa_bss_get_ie(bss, WLAN_EID_BSS_LOAD);
1258 if (ie == NULL || ie[1] < 3)
1259 return 0; /* No BSS Load advertised */
1260
1261 res = interworking_home_sp_cred(wpa_s, cred, bss->anqp ?
1262 bss->anqp->domain_name : NULL);
1263 if (res <= 0)
1264 return 0; /* Not a home network */
1265
1266 return ie[4] > cred->max_bss_load;
1267}
1268
1269
876e74aa
JM		 1270#ifdef CONFIG_HS20
1271
33fb8c52
JM		 1272static int has_proto_match(const u8 *pos, const u8 *end, u8 proto)
1273{
67fea55c 1274 while (end - pos >= 4) {
33fb8c52
JM		 1275 if (pos[0] == proto && pos[3] == 1 /* Open */)
1276 return 1;
1277 pos += 4;
1278 }
1279
1280 return 0;
1281}
1282
1283
1284static int has_proto_port_match(const u8 *pos, const u8 *end, u8 proto,
1285 u16 port)
1286{
67fea55c 1287 while (end - pos >= 4) {
33fb8c52
JM		 1288 if (pos[0] == proto && WPA_GET_LE16(&pos[1]) == port &&
1289 pos[3] == 1 /* Open */)
1290 return 1;
1291 pos += 4;
1292 }
1293
1294 return 0;
1295}
1296
876e74aa
JM		 1297#endif /* CONFIG_HS20 */
1298
33fb8c52
JM		 1299
1300static int cred_conn_capab_missing(struct wpa_supplicant *wpa_s,
1301 struct wpa_cred *cred, struct wpa_bss *bss)
1302{
876e74aa 1303#ifdef CONFIG_HS20
33fb8c52
JM		 1304 int res;
1305 const u8 *capab, *end;
1306 unsigned int i, j;
1307 int *ports;
1308
1309 if (!cred->num_req_conn_capab)
1310 return 0; /* No connection capability constraint specified */
1311
1312 if (bss->anqp == NULL || bss->anqp->hs20_connection_capability == NULL)
1313 return 0; /* No Connection Capability known - ignore constraint
1314 */
1315
1316 res = interworking_home_sp_cred(wpa_s, cred, bss->anqp ?
1317 bss->anqp->domain_name : NULL);
1318 if (res > 0)
1319 return 0; /* No constraint in home network */
1320
1321 capab = wpabuf_head(bss->anqp->hs20_connection_capability);
1322 end = capab + wpabuf_len(bss->anqp->hs20_connection_capability);
1323
1324 for (i = 0; i < cred->num_req_conn_capab; i++) {
1325 ports = cred->req_conn_capab_port[i];
1326 if (!ports) {
1327 if (!has_proto_match(capab, end,
1328 cred->req_conn_capab_proto[i]))
1329 return 1;
1330 } else {
1331 for (j = 0; ports[j] > -1; j++) {
1332 if (!has_proto_port_match(
1333 capab, end,
1334 cred->req_conn_capab_proto[i],
1335 ports[j]))
1336 return 1;
1337 }
1338 }
1339 }
876e74aa 1340#endif /* CONFIG_HS20 */
33fb8c52
JM		 1341
1342 return 0;
1343}
1344
1345
955567bc 1346static struct wpa_cred * interworking_credentials_available_roaming_consortium(
28f2a7c4
JM		 1347 struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int ignore_bw,
1348 int *excluded)
955567bc
JM		 1349{
1350 struct wpa_cred *cred, *selected = NULL;
1351 const u8 *ie;
28f2a7c4 1352 int is_excluded = 0;
955567bc
JM		 1353
1354 ie = wpa_bss_get_ie(bss, WLAN_EID_ROAMING_CONSORTIUM);
1355
476aed35
JM		 1356 if (ie == NULL &&
1357 (bss->anqp == NULL || bss->anqp->roaming_consortium == NULL))
955567bc
JM		 1358 return NULL;
1359
1360 if (wpa_s->conf->cred == NULL)
1361 return NULL;
1362
1363 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
1364 if (cred->roaming_consortium_len == 0)
1365 continue;
1366
476aed35
JM		 1367 if (!roaming_consortium_match(ie,
1368 bss->anqp ?
1369 bss->anqp->roaming_consortium :
1370 NULL,
955567bc
JM		 1371 cred->roaming_consortium,
1372 cred->roaming_consortium_len))
1373 continue;
1374
f47c1452
JM		 1375 if (cred_no_required_oi_match(cred, bss))
1376 continue;
4cad9df1
JM		 1377 if (!ignore_bw && cred_below_min_backhaul(wpa_s, cred, bss))
1378 continue;
a45b2dc5
JM		 1379 if (!ignore_bw && cred_over_max_bss_load(wpa_s, cred, bss))
1380 continue;
33fb8c52
JM		 1381 if (!ignore_bw && cred_conn_capab_missing(wpa_s, cred, bss))
1382 continue;
28f2a7c4
JM		 1383 if (cred_excluded_ssid(cred, bss)) {
1384 if (excluded == NULL)
1385 continue;
1386 if (selected == NULL) {
1387 selected = cred;
1388 is_excluded = 1;
1389 }
1390 } else {
1391 if (selected == NULL || is_excluded ||
751ac997 1392 cred_prio_cmp(selected, cred) < 0) {
28f2a7c4
JM		 1393 selected = cred;
1394 is_excluded = 0;
1395 }
1396 }
955567bc
JM		 1397 }
1398
28f2a7c4
JM		 1399 if (excluded)
1400 *excluded = is_excluded;
1401
955567bc
JM		 1402 return selected;
1403}
1404
1405
d5b5d801
JM		 1406static int interworking_set_eap_params(struct wpa_ssid *ssid,
1407 struct wpa_cred *cred, int ttls)
1408{
8ca93c59
JM		 1409 if (cred->eap_method) {
1410 ttls = cred->eap_method->vendor == EAP_VENDOR_IETF &&
1411 cred->eap_method->method == EAP_TYPE_TTLS;
1412
1413 os_free(ssid->eap.eap_methods);
1414 ssid->eap.eap_methods =
1415 os_malloc(sizeof(struct eap_method_type) * 2);
1416 if (ssid->eap.eap_methods == NULL)
1417 return -1;
1418 os_memcpy(ssid->eap.eap_methods, cred->eap_method,
1419 sizeof(*cred->eap_method));
1420 ssid->eap.eap_methods[1].vendor = EAP_VENDOR_IETF;
1421 ssid->eap.eap_methods[1].method = EAP_TYPE_NONE;
1422 }
1423
d5b5d801
JM		 1424 if (ttls && cred->username && cred->username[0]) {
1425 const char *pos;
1426 char *anon;
1427 /* Use anonymous NAI in Phase 1 */
1428 pos = os_strchr(cred->username, '@');
1429 if (pos) {
1430 size_t buflen = 9 + os_strlen(pos) + 1;
1431 anon = os_malloc(buflen);
1432 if (anon == NULL)
1433 return -1;
1434 os_snprintf(anon, buflen, "anonymous%s", pos);
1435 } else if (cred->realm) {
1436 size_t buflen = 10 + os_strlen(cred->realm) + 1;
1437 anon = os_malloc(buflen);
1438 if (anon == NULL)
1439 return -1;
1440 os_snprintf(anon, buflen, "anonymous@%s", cred->realm);
1441 } else {
1442 anon = os_strdup("anonymous");
1443 if (anon == NULL)
1444 return -1;
1445 }
1446 if (wpa_config_set_quoted(ssid, "anonymous_identity", anon) <
1447 0) {
1448 os_free(anon);
1449 return -1;
1450 }
1451 os_free(anon);
1452 }
1453
c6c29be1
JM		 1454 if (!ttls && cred->username && cred->username[0] && cred->realm &&
1455 !os_strchr(cred->username, '@')) {
1456 char *id;
1457 size_t buflen;
1458 int res;
1459
1460 buflen = os_strlen(cred->username) + 1 +
1461 os_strlen(cred->realm) + 1;
1462
1463 id = os_malloc(buflen);
1464 if (!id)
1465 return -1;
1466 os_snprintf(id, buflen, "%s@%s", cred->username, cred->realm);
1467 res = wpa_config_set_quoted(ssid, "identity", id);
1468 os_free(id);
1469 if (res < 0)
1470 return -1;
1471 } else if (cred->username && cred->username[0] &&
d5b5d801
JM		 1472 wpa_config_set_quoted(ssid, "identity", cred->username) < 0)
1473 return -1;
1474
02af9c90
JM		 1475 if (cred->password && cred->password[0]) {
1476 if (cred->ext_password &&
1477 wpa_config_set(ssid, "password", cred->password, 0) < 0)
1478 return -1;
1479 if (!cred->ext_password &&
1480 wpa_config_set_quoted(ssid, "password", cred->password) <
1481 0)
1482 return -1;
1483 }
d5b5d801
JM		 1484
1485 if (cred->client_cert && cred->client_cert[0] &&
1486 wpa_config_set_quoted(ssid, "client_cert", cred->client_cert) < 0)
1487 return -1;
1488
93face0e
JM		 1489#ifdef ANDROID
1490 if (cred->private_key &&
1491 os_strncmp(cred->private_key, "keystore://", 11) == 0) {
1492 /* Use OpenSSL engine configuration for Android keystore */
1493 if (wpa_config_set_quoted(ssid, "engine_id", "keystore") < 0 ||
1494 wpa_config_set_quoted(ssid, "key_id",
1495 cred->private_key + 11) < 0 ||
1496 wpa_config_set(ssid, "engine", "1", 0) < 0)
1497 return -1;
1498 } else
1499#endif /* ANDROID */
d5b5d801
JM		 1500 if (cred->private_key && cred->private_key[0] &&
1501 wpa_config_set_quoted(ssid, "private_key", cred->private_key) < 0)
1502 return -1;
1503
1504 if (cred->private_key_passwd && cred->private_key_passwd[0] &&
1505 wpa_config_set_quoted(ssid, "private_key_passwd",
1506 cred->private_key_passwd) < 0)
1507 return -1;
1508
8ca93c59
JM		 1509 if (cred->phase1) {
1510 os_free(ssid->eap.phase1);
1511 ssid->eap.phase1 = os_strdup(cred->phase1);
1512 }
1513 if (cred->phase2) {
1514 os_free(ssid->eap.phase2);
1515 ssid->eap.phase2 = os_strdup(cred->phase2);
1516 }
1517
d5b5d801
JM		 1518 if (cred->ca_cert && cred->ca_cert[0] &&
1519 wpa_config_set_quoted(ssid, "ca_cert", cred->ca_cert) < 0)
1520 return -1;
1521
ac1bc549
JM		 1522 if (cred->domain_suffix_match && cred->domain_suffix_match[0] &&
1523 wpa_config_set_quoted(ssid, "domain_suffix_match",
1524 cred->domain_suffix_match) < 0)
1525 return -1;
1526
cf6d08a6
JM		 1527 ssid->eap.ocsp = cred->ocsp;
1528
d5b5d801
JM		 1529 return 0;
1530}
1531
1532
955567bc
JM		 1533static int interworking_connect_roaming_consortium(
1534 struct wpa_supplicant *wpa_s, struct wpa_cred *cred,
f91a512f 1535 struct wpa_bss *bss, int only_add)
955567bc
JM		 1536{
1537 struct wpa_ssid *ssid;
1538
99805a0e
BG		 1539 wpa_msg(wpa_s, MSG_DEBUG, "Interworking: Connect with " MACSTR
1540 " based on roaming consortium match", MAC2STR(bss->bssid));
955567bc 1541
d28f4e44
JM		 1542 if (already_connected(wpa_s, cred, bss)) {
1543 wpa_msg(wpa_s, MSG_INFO, INTERWORKING_ALREADY_CONNECTED MACSTR,
1544 MAC2STR(bss->bssid));
f91a512f 1545 return wpa_s->current_ssid->id;
d28f4e44
JM		 1546 }
1547
6ede8a7e
JM		 1548 remove_duplicate_network(wpa_s, cred, bss);
1549
955567bc
JM		 1550 ssid = wpa_config_add_network(wpa_s->conf);
1551 if (ssid == NULL)
1552 return -1;
736d4f2d 1553 ssid->parent_cred = cred;
955567bc
JM		 1554 wpas_notify_network_added(wpa_s, ssid);
1555 wpa_config_set_network_defaults(ssid);
1556 ssid->priority = cred->priority;
1557 ssid->temporary = 1;
08b26779 1558 ssid->ssid = os_zalloc(bss->ssid_len + 1);
955567bc
JM		 1559 if (ssid->ssid == NULL)
1560 goto fail;
08b26779
JM		 1561 os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
1562 ssid->ssid_len = bss->ssid_len;
955567bc 1563
3c8e4ec0 1564 if (interworking_set_hs20_params(wpa_s, ssid) < 0)
1ecd2ada
JM		 1565 goto fail;
1566
955567bc 1567 if (cred->eap_method == NULL) {
99805a0e
BG		 1568 wpa_msg(wpa_s, MSG_DEBUG,
1569 "Interworking: No EAP method set for credential using roaming consortium");
955567bc
JM		 1570 goto fail;
1571 }
1572
1573 if (interworking_set_eap_params(
1574 ssid, cred,
1575 cred->eap_method->vendor == EAP_VENDOR_IETF &&
1576 cred->eap_method->method == EAP_TYPE_TTLS) < 0)
1577 goto fail;
1578
3d910ef4 1579 wpa_s->next_ssid = ssid;
955567bc 1580 wpa_config_update_prio_list(wpa_s->conf);
f91a512f
JM		 1581 if (!only_add)
1582 interworking_reconnect(wpa_s);
955567bc 1583
f91a512f 1584 return ssid->id;
955567bc
JM		 1585
1586fail:
1587 wpas_notify_network_removed(wpa_s, ssid);
1588 wpa_config_remove_network(wpa_s->conf, ssid->id);
1589 return -1;
1590}
1591
1592
28f2a7c4 1593static int interworking_connect_helper(struct wpa_supplicant *wpa_s,
f91a512f
JM		 1594 struct wpa_bss *bss, int allow_excluded,
1595 int only_add)
b02fe7ff 1596{
b618a469 1597 struct wpa_cred *cred, *cred_rc, *cred_3gpp;
67e1b984
JM		 1598 struct wpa_ssid *ssid;
1599 struct nai_realm *realm;
1600 struct nai_realm_eap *eap = NULL;
1601 u16 count, i;
1602 char buf[100];
28f2a7c4 1603 int excluded = 0, *excl = allow_excluded ? &excluded : NULL;
9c6c5589 1604 const char *name;
67e1b984 1605
1bb7b8e8 1606 if (wpa_s->conf->cred == NULL || bss == NULL)
b02fe7ff 1607 return -1;
50589751
JM		 1608 if (disallowed_bssid(wpa_s, bss->bssid) ||
1609 disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
99805a0e
BG		 1610 wpa_msg(wpa_s, MSG_DEBUG,
1611 "Interworking: Reject connection to disallowed BSS "
1612 MACSTR, MAC2STR(bss->bssid));
50589751
JM		 1613 return -1;
1614 }
67e1b984 1615
8b4b9fb3
JM		 1616 wpa_printf(MSG_DEBUG, "Interworking: Considering BSS " MACSTR
1617 " for connection (allow_excluded=%d)",
1618 MAC2STR(bss->bssid), allow_excluded);
1619
63e5caaa
JM		 1620 if (!wpa_bss_get_ie(bss, WLAN_EID_RSN)) {
1621 /*
1622 * We currently support only HS 2.0 networks and those are
1623 * required to use WPA2-Enterprise.
1624 */
99805a0e
BG		 1625 wpa_msg(wpa_s, MSG_DEBUG,
1626 "Interworking: Network does not use RSN");
63e5caaa
JM		 1627 return -1;
1628 }
1629
28f2a7c4
JM		 1630 cred_rc = interworking_credentials_available_roaming_consortium(
1631 wpa_s, bss, 0, excl);
b618a469 1632 if (cred_rc) {
99805a0e
BG		 1633 wpa_msg(wpa_s, MSG_DEBUG,
1634 "Interworking: Highest roaming consortium matching credential priority %d sp_priority %d",
1635 cred_rc->priority, cred_rc->sp_priority);
28f2a7c4
JM		 1636 if (allow_excluded && excl && !(*excl))
1637 excl = NULL;
b618a469
JM		 1638 }
1639
28f2a7c4 1640 cred = interworking_credentials_available_realm(wpa_s, bss, 0, excl);
b618a469 1641 if (cred) {
99805a0e
BG		 1642 wpa_msg(wpa_s, MSG_DEBUG,
1643 "Interworking: Highest NAI Realm list matching credential priority %d sp_priority %d",
1644 cred->priority, cred->sp_priority);
28f2a7c4
JM		 1645 if (allow_excluded && excl && !(*excl))
1646 excl = NULL;
b618a469
JM		 1647 }
1648
28f2a7c4
JM		 1649 cred_3gpp = interworking_credentials_available_3gpp(wpa_s, bss, 0,
1650 excl);
b618a469 1651 if (cred_3gpp) {
99805a0e
BG		 1652 wpa_msg(wpa_s, MSG_DEBUG,
1653 "Interworking: Highest 3GPP matching credential priority %d sp_priority %d",
1654 cred_3gpp->priority, cred_3gpp->sp_priority);
28f2a7c4
JM		 1655 if (allow_excluded && excl && !(*excl))
1656 excl = NULL;
b618a469
JM		 1657 }
1658
4cad9df1 1659 if (!cred_rc && !cred && !cred_3gpp) {
99805a0e
BG		 1660 wpa_msg(wpa_s, MSG_DEBUG,
1661 "Interworking: No full credential matches - consider options without BW(etc.) limits");
4cad9df1 1662 cred_rc = interworking_credentials_available_roaming_consortium(
28f2a7c4 1663 wpa_s, bss, 1, excl);
4cad9df1 1664 if (cred_rc) {
99805a0e
BG		 1665 wpa_msg(wpa_s, MSG_DEBUG,
1666 "Interworking: Highest roaming consortium matching credential priority %d sp_priority %d (ignore BW)",
1667 cred_rc->priority, cred_rc->sp_priority);
28f2a7c4
JM		 1668 if (allow_excluded && excl && !(*excl))
1669 excl = NULL;
4cad9df1
JM		 1670 }
1671
28f2a7c4
JM		 1672 cred = interworking_credentials_available_realm(wpa_s, bss, 1,
1673 excl);
4cad9df1 1674 if (cred) {
99805a0e
BG		 1675 wpa_msg(wpa_s, MSG_DEBUG,
1676 "Interworking: Highest NAI Realm list matching credential priority %d sp_priority %d (ignore BW)",
1677 cred->priority, cred->sp_priority);
28f2a7c4
JM		 1678 if (allow_excluded && excl && !(*excl))
1679 excl = NULL;
4cad9df1
JM		 1680 }
1681
1682 cred_3gpp = interworking_credentials_available_3gpp(wpa_s, bss,
28f2a7c4 1683 1, excl);
4cad9df1 1684 if (cred_3gpp) {
99805a0e
BG		 1685 wpa_msg(wpa_s, MSG_DEBUG,
1686 "Interworking: Highest 3GPP matching credential priority %d sp_priority %d (ignore BW)",
1687 cred_3gpp->priority, cred_3gpp->sp_priority);
28f2a7c4
JM		 1688 if (allow_excluded && excl && !(*excl))
1689 excl = NULL;
4cad9df1
JM		 1690 }
1691 }
1692
b618a469 1693 if (cred_rc &&
751ac997
JM		 1694 (cred == NULL || cred_prio_cmp(cred_rc, cred) >= 0) &&
1695 (cred_3gpp == NULL || cred_prio_cmp(cred_rc, cred_3gpp) >= 0))
b618a469 1696 return interworking_connect_roaming_consortium(wpa_s, cred_rc,
f91a512f 1697 bss, only_add);
955567bc 1698
b618a469 1699 if (cred_3gpp &&
751ac997 1700 (cred == NULL || cred_prio_cmp(cred_3gpp, cred) >= 0)) {
f91a512f
JM		 1701 return interworking_connect_3gpp(wpa_s, cred_3gpp, bss,
1702 only_add);
b618a469
JM		 1703 }
1704
1705 if (cred == NULL) {
99805a0e
BG		 1706 wpa_msg(wpa_s, MSG_DEBUG,
1707 "Interworking: No matching credentials found for "
1708 MACSTR, MAC2STR(bss->bssid));
b618a469
JM		 1709 return -1;
1710 }
1711
476aed35
JM		 1712 realm = nai_realm_parse(bss->anqp ? bss->anqp->nai_realm : NULL,
1713 &count);
67e1b984 1714 if (realm == NULL) {
99805a0e
BG		 1715 wpa_msg(wpa_s, MSG_DEBUG,
1716 "Interworking: Could not parse NAI Realm list from "
1717 MACSTR, MAC2STR(bss->bssid));
b618a469 1718 return -1;
67e1b984
JM		 1719 }
1720
b618a469
JM		 1721 for (i = 0; i < count; i++) {
1722 if (!nai_realm_match(&realm[i], cred->realm))
1723 continue;
f45bae5b 1724 eap = nai_realm_find_eap(wpa_s, cred, &realm[i]);
67e1b984
JM		 1725 if (eap)
1726 break;
1727 }
1728
1729 if (!eap) {
99805a0e
BG		 1730 wpa_msg(wpa_s, MSG_DEBUG,
1731 "Interworking: No matching credentials and EAP method found for "
1732 MACSTR, MAC2STR(bss->bssid));
67e1b984
JM		 1733 nai_realm_free(realm, count);
1734 return -1;
1735 }
b02fe7ff 1736
99805a0e
BG		 1737 wpa_msg(wpa_s, MSG_DEBUG, "Interworking: Connect with " MACSTR,
1738 MAC2STR(bss->bssid));
67e1b984 1739
d28f4e44
JM		 1740 if (already_connected(wpa_s, cred, bss)) {
1741 wpa_msg(wpa_s, MSG_INFO, INTERWORKING_ALREADY_CONNECTED MACSTR,
1742 MAC2STR(bss->bssid));
1743 nai_realm_free(realm, count);
1744 return 0;
1745 }
1746
6ede8a7e
JM		 1747 remove_duplicate_network(wpa_s, cred, bss);
1748
67e1b984
JM		 1749 ssid = wpa_config_add_network(wpa_s->conf);
1750 if (ssid == NULL) {
1751 nai_realm_free(realm, count);
1752 return -1;
1753 }
736d4f2d 1754 ssid->parent_cred = cred;
67e1b984
JM		 1755 wpas_notify_network_added(wpa_s, ssid);
1756 wpa_config_set_network_defaults(ssid);
1a712d2f 1757 ssid->priority = cred->priority;
67e1b984 1758 ssid->temporary = 1;
08b26779 1759 ssid->ssid = os_zalloc(bss->ssid_len + 1);
67e1b984
JM		 1760 if (ssid->ssid == NULL)
1761 goto fail;
08b26779
JM		 1762 os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
1763 ssid->ssid_len = bss->ssid_len;
67e1b984 1764
3c8e4ec0 1765 if (interworking_set_hs20_params(wpa_s, ssid) < 0)
1ecd2ada
JM		 1766 goto fail;
1767
67e1b984
JM		 1768 if (wpa_config_set(ssid, "eap", eap_get_name(EAP_VENDOR_IETF,
1769 eap->method), 0) < 0)
1770 goto fail;
1771
67e1b984
JM		 1772 switch (eap->method) {
1773 case EAP_TYPE_TTLS:
1774 if (eap->inner_method) {
1775 os_snprintf(buf, sizeof(buf), "\"autheap=%s\"",
1776 eap_get_name(EAP_VENDOR_IETF,
1777 eap->inner_method));
1778 if (wpa_config_set(ssid, "phase2", buf, 0) < 0)
1779 goto fail;
1780 break;
1781 }
1782 switch (eap->inner_non_eap) {
1783 case NAI_REALM_INNER_NON_EAP_PAP:
1784 if (wpa_config_set(ssid, "phase2", "\"auth=PAP\"", 0) <
1785 0)
1786 goto fail;
1787 break;
1788 case NAI_REALM_INNER_NON_EAP_CHAP:
1789 if (wpa_config_set(ssid, "phase2", "\"auth=CHAP\"", 0)
1790 < 0)
1791 goto fail;
1792 break;
1793 case NAI_REALM_INNER_NON_EAP_MSCHAP:
d3f57d0f
JM		 1794 if (wpa_config_set(ssid, "phase2", "\"auth=MSCHAP\"",
1795 0) < 0)
67e1b984
JM		 1796 goto fail;
1797 break;
1798 case NAI_REALM_INNER_NON_EAP_MSCHAPV2:
1799 if (wpa_config_set(ssid, "phase2", "\"auth=MSCHAPV2\"",
2047e596
JM		 1800 0) < 0)
1801 goto fail;
1802 break;
1803 default:
1804 /* EAP params were not set - assume TTLS/MSCHAPv2 */
1805 if (wpa_config_set(ssid, "phase2", "\"auth=MSCHAPV2\"",
67e1b984
JM		 1806 0) < 0)
1807 goto fail;
1808 break;
1809 }
1810 break;
1811 case EAP_TYPE_PEAP:
1f5d2dd3
JM		 1812 case EAP_TYPE_FAST:
1813 if (wpa_config_set(ssid, "phase1", "\"fast_provisioning=2\"",
1814 0) < 0)
1815 goto fail;
1816 if (wpa_config_set(ssid, "pac_file",
1817 "\"blob://pac_interworking\"", 0) < 0)
1818 goto fail;
9c6c5589
JM		 1819 name = eap_get_name(EAP_VENDOR_IETF,
1820 eap->inner_method ? eap->inner_method :
1821 EAP_TYPE_MSCHAPV2);
1822 if (name == NULL)
1823 goto fail;
1824 os_snprintf(buf, sizeof(buf), "\"auth=%s\"", name);
67e1b984
JM		 1825 if (wpa_config_set(ssid, "phase2", buf, 0) < 0)
1826 goto fail;
1827 break;
11e4f46a
JM		 1828 case EAP_TYPE_TLS:
1829 break;
67e1b984
JM		 1830 }
1831
d5b5d801
JM		 1832 if (interworking_set_eap_params(ssid, cred,
1833 eap->method == EAP_TYPE_TTLS) < 0)
67e1b984
JM		 1834 goto fail;
1835
1836 nai_realm_free(realm, count);
1837
3d910ef4 1838 wpa_s->next_ssid = ssid;
1a712d2f 1839 wpa_config_update_prio_list(wpa_s->conf);
f91a512f
JM		 1840 if (!only_add)
1841 interworking_reconnect(wpa_s);
67e1b984 1842
f91a512f 1843 return ssid->id;
67e1b984
JM		 1844
1845fail:
1846 wpas_notify_network_removed(wpa_s, ssid);
1847 wpa_config_remove_network(wpa_s->conf, ssid->id);
1848 nai_realm_free(realm, count);
1849 return -1;
b02fe7ff
JM		 1850}
1851
1852
f91a512f
JM		 1853int interworking_connect(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
1854 int only_add)
28f2a7c4 1855{
f91a512f 1856 return interworking_connect_helper(wpa_s, bss, 1, only_add);
28f2a7c4
JM		 1857}
1858
1859
72300408
JT		 1860#ifdef PCSC_FUNCS
1861static int interworking_pcsc_read_imsi(struct wpa_supplicant *wpa_s)
1862{
1863 size_t len;
1864
1865 if (wpa_s->imsi[0] && wpa_s->mnc_len)
1866 return 0;
1867
1868 len = sizeof(wpa_s->imsi) - 1;
1869 if (scard_get_imsi(wpa_s->scard, wpa_s->imsi, &len)) {
1870 scard_deinit(wpa_s->scard);
1871 wpa_s->scard = NULL;
1872 wpa_msg(wpa_s, MSG_ERROR, "Could not read IMSI");
1873 return -1;
1874 }
1875 wpa_s->imsi[len] = '\0';
1876 wpa_s->mnc_len = scard_get_mnc_len(wpa_s->scard);
1877 wpa_printf(MSG_DEBUG, "SCARD: IMSI %s (MNC length %d)",
1878 wpa_s->imsi, wpa_s->mnc_len);
1879
1880 return 0;
1881}
1882#endif /* PCSC_FUNCS */
1883
1884
1a712d2f 1885static struct wpa_cred * interworking_credentials_available_3gpp(
28f2a7c4
JM		 1886 struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int ignore_bw,
1887 int *excluded)
3b840b67 1888{
ad5dda82
MH		 1889 struct wpa_cred *selected = NULL;
1890#ifdef INTERWORKING_3GPP
1891 struct wpa_cred *cred;
1bb7b8e8 1892 int ret;
28f2a7c4 1893 int is_excluded = 0;
3b840b67 1894
893e152e
BG		 1895 if (bss->anqp == NULL || bss->anqp->anqp_3gpp == NULL) {
1896 wpa_msg(wpa_s, MSG_DEBUG,
1897 "interworking-avail-3gpp: not avail, anqp: %p anqp_3gpp: %p",
1898 bss->anqp, bss->anqp ? bss->anqp->anqp_3gpp : NULL);
1a712d2f 1899 return NULL;
893e152e 1900 }
3b840b67 1901
efc58df2
NJ		 1902#ifdef CONFIG_EAP_PROXY
1903 if (!wpa_s->imsi[0]) {
1904 size_t len;
893e152e
BG		 1905 wpa_msg(wpa_s, MSG_DEBUG,
1906 "Interworking: IMSI not available - try to read again through eap_proxy");
efc58df2
NJ		 1907 wpa_s->mnc_len = eapol_sm_get_eap_proxy_imsi(wpa_s->eapol,
1908 wpa_s->imsi,
1909 &len);
1910 if (wpa_s->mnc_len > 0) {
1911 wpa_s->imsi[len] = '\0';
893e152e
BG		 1912 wpa_msg(wpa_s, MSG_DEBUG,
1913 "eap_proxy: IMSI %s (MNC length %d)",
1914 wpa_s->imsi, wpa_s->mnc_len);
efc58df2 1915 } else {
893e152e
BG		 1916 wpa_msg(wpa_s, MSG_DEBUG,
1917 "eap_proxy: IMSI not available");
efc58df2
NJ		 1918 }
1919 }
1920#endif /* CONFIG_EAP_PROXY */
1921
1bb7b8e8 1922 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
c21246f5 1923 char *sep;
d7b01abd
JM		 1924 const char *imsi;
1925 int mnc_len;
0b9d3b22
JM		 1926 char imsi_buf[16];
1927 size_t msin_len;
d7b01abd
JM		 1928
1929#ifdef PCSC_FUNCS
72300408
JT		 1930 if (cred->pcsc && wpa_s->scard) {
1931 if (interworking_pcsc_read_imsi(wpa_s) < 0)
1932 continue;
d7b01abd
JM		 1933 imsi = wpa_s->imsi;
1934 mnc_len = wpa_s->mnc_len;
1935 goto compare;
1936 }
1937#endif /* PCSC_FUNCS */
ec7b97ab
JM		 1938#ifdef CONFIG_EAP_PROXY
1939 if (cred->pcsc && wpa_s->mnc_len > 0 && wpa_s->imsi[0]) {
1940 imsi = wpa_s->imsi;
1941 mnc_len = wpa_s->mnc_len;
1942 goto compare;
1943 }
1944#endif /* CONFIG_EAP_PROXY */
c21246f5 1945
1bb7b8e8 1946 if (cred->imsi == NULL || !cred->imsi[0] ||
a5d44ac0
JM		 1947 (!wpa_s->conf->external_sim &&
1948 (cred->milenage == NULL || !cred->milenage[0])))
1bb7b8e8 1949 continue;
3b840b67 1950
c21246f5
JM		 1951 sep = os_strchr(cred->imsi, '-');
1952 if (sep == NULL ||
1953 (sep - cred->imsi != 5 && sep - cred->imsi != 6))
1954 continue;
d7b01abd 1955 mnc_len = sep - cred->imsi - 3;
0b9d3b22
JM		 1956 os_memcpy(imsi_buf, cred->imsi, 3 + mnc_len);
1957 sep++;
1958 msin_len = os_strlen(cred->imsi);
1959 if (3 + mnc_len + msin_len >= sizeof(imsi_buf) - 1)
1960 msin_len = sizeof(imsi_buf) - 3 - mnc_len - 1;
1961 os_memcpy(&imsi_buf[3 + mnc_len], sep, msin_len);
1962 imsi_buf[3 + mnc_len + msin_len] = '\0';
1963 imsi = imsi_buf;
c21246f5 1964
ec7b97ab 1965#if defined(PCSC_FUNCS) || defined(CONFIG_EAP_PROXY)
d7b01abd 1966 compare:
ec7b97ab 1967#endif /* PCSC_FUNCS || CONFIG_EAP_PROXY */
99805a0e
BG		 1968 wpa_msg(wpa_s, MSG_DEBUG,
1969 "Interworking: Parsing 3GPP info from " MACSTR,
1970 MAC2STR(bss->bssid));
476aed35 1971 ret = plmn_id_match(bss->anqp->anqp_3gpp, imsi, mnc_len);
99805a0e
BG		 1972 wpa_msg(wpa_s, MSG_DEBUG, "PLMN match %sfound",
1973 ret ? "" : "not ");
1a712d2f 1974 if (ret) {
f47c1452
JM		 1975 if (cred_no_required_oi_match(cred, bss))
1976 continue;
4cad9df1
JM		 1977 if (!ignore_bw &&
1978 cred_below_min_backhaul(wpa_s, cred, bss))
1979 continue;
a45b2dc5
JM		 1980 if (!ignore_bw &&
1981 cred_over_max_bss_load(wpa_s, cred, bss))
1982 continue;
33fb8c52
JM		 1983 if (!ignore_bw &&
1984 cred_conn_capab_missing(wpa_s, cred, bss))
1985 continue;
28f2a7c4
JM		 1986 if (cred_excluded_ssid(cred, bss)) {
1987 if (excluded == NULL)
1988 continue;
1989 if (selected == NULL) {
1990 selected = cred;
1991 is_excluded = 1;
1992 }
1993 } else {
1994 if (selected == NULL || is_excluded ||
751ac997 1995 cred_prio_cmp(selected, cred) < 0) {
28f2a7c4
JM		 1996 selected = cred;
1997 is_excluded = 0;
1998 }
1999 }
1a712d2f 2000 }
1bb7b8e8 2001 }
28f2a7c4
JM		 2002
2003 if (excluded)
2004 *excluded = is_excluded;
3b840b67 2005#endif /* INTERWORKING_3GPP */
1a712d2f 2006 return selected;
3b840b67
JM		 2007}
2008
2009
1a712d2f 2010static struct wpa_cred * interworking_credentials_available_realm(
28f2a7c4
JM		 2011 struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int ignore_bw,
2012 int *excluded)
73c41a8f 2013{
1a712d2f 2014 struct wpa_cred *cred, *selected = NULL;
73c41a8f
JM		 2015 struct nai_realm *realm;
2016 u16 count, i;
28f2a7c4 2017 int is_excluded = 0;
73c41a8f 2018
476aed35 2019 if (bss->anqp == NULL || bss->anqp->nai_realm == NULL)
1a712d2f 2020 return NULL;
73c41a8f 2021
1bb7b8e8 2022 if (wpa_s->conf->cred == NULL)
1a712d2f 2023 return NULL;
73c41a8f 2024
99805a0e
BG		 2025 wpa_msg(wpa_s, MSG_DEBUG, "Interworking: Parsing NAI Realm list from "
2026 MACSTR, MAC2STR(bss->bssid));
476aed35 2027 realm = nai_realm_parse(bss->anqp->nai_realm, &count);
73c41a8f 2028 if (realm == NULL) {
99805a0e
BG		 2029 wpa_msg(wpa_s, MSG_DEBUG,
2030 "Interworking: Could not parse NAI Realm list from "
2031 MACSTR, MAC2STR(bss->bssid));
1a712d2f 2032 return NULL;
73c41a8f
JM		 2033 }
2034
1bb7b8e8
JM		 2035 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
2036 if (cred->realm == NULL)
67e1b984 2037 continue;
1bb7b8e8
JM		 2038
2039 for (i = 0; i < count; i++) {
2040 if (!nai_realm_match(&realm[i], cred->realm))
2041 continue;
f45bae5b 2042 if (nai_realm_find_eap(wpa_s, cred, &realm[i])) {
f47c1452
JM		 2043 if (cred_no_required_oi_match(cred, bss))
2044 continue;
4cad9df1
JM		 2045 if (!ignore_bw &&
2046 cred_below_min_backhaul(wpa_s, cred, bss))
2047 continue;
a45b2dc5
JM		 2048 if (!ignore_bw &&
2049 cred_over_max_bss_load(wpa_s, cred, bss))
2050 continue;
33fb8c52
JM		 2051 if (!ignore_bw &&
2052 cred_conn_capab_missing(wpa_s, cred, bss))
2053 continue;
28f2a7c4
JM		 2054 if (cred_excluded_ssid(cred, bss)) {
2055 if (excluded == NULL)
2056 continue;
2057 if (selected == NULL) {
2058 selected = cred;
2059 is_excluded = 1;
2060 }
2061 } else {
2062 if (selected == NULL || is_excluded ||
751ac997
JM		 2063 cred_prio_cmp(selected, cred) < 0)
2064 {
28f2a7c4
JM		 2065 selected = cred;
2066 is_excluded = 0;
2067 }
2068 }
1bb7b8e8 2069 break;
99805a0e
BG		 2070 } else {
2071 wpa_msg(wpa_s, MSG_DEBUG,
2072 "Interworking: realm-find-eap returned false");
1bb7b8e8 2073 }
73c41a8f
JM		 2074 }
2075 }
2076
2077 nai_realm_free(realm, count);
2078
28f2a7c4
JM		 2079 if (excluded)
2080 *excluded = is_excluded;
2081
1a712d2f 2082 return selected;
73c41a8f
JM		 2083}
2084
2085
4cad9df1 2086static struct wpa_cred * interworking_credentials_available_helper(
28f2a7c4
JM		 2087 struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int ignore_bw,
2088 int *excluded)
3b840b67 2089{
1a712d2f 2090 struct wpa_cred *cred, *cred2;
9f390f43 2091 int excluded1, excluded2 = 0;
1a712d2f 2092
50589751
JM		 2093 if (disallowed_bssid(wpa_s, bss->bssid) ||
2094 disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
2095 wpa_printf(MSG_DEBUG, "Interworking: Ignore disallowed BSS "
2096 MACSTR, MAC2STR(bss->bssid));
2097 return NULL;
2098 }
2099
28f2a7c4
JM		 2100 cred = interworking_credentials_available_realm(wpa_s, bss, ignore_bw,
2101 &excluded1);
2102 cred2 = interworking_credentials_available_3gpp(wpa_s, bss, ignore_bw,
2103 &excluded2);
2104 if (cred && cred2 &&
751ac997 2105 (cred_prio_cmp(cred2, cred) >= 0 || (!excluded2 && excluded1))) {
1a712d2f 2106 cred = cred2;
28f2a7c4
JM		 2107 excluded1 = excluded2;
2108 }
2109 if (!cred) {
1a712d2f 2110 cred = cred2;
28f2a7c4
JM		 2111 excluded1 = excluded2;
2112 }
1a712d2f 2113
28f2a7c4
JM		 2114 cred2 = interworking_credentials_available_roaming_consortium(
2115 wpa_s, bss, ignore_bw, &excluded2);
2116 if (cred && cred2 &&
751ac997 2117 (cred_prio_cmp(cred2, cred) >= 0 || (!excluded2 && excluded1))) {
955567bc 2118 cred = cred2;
28f2a7c4
JM		 2119 excluded1 = excluded2;
2120 }
2121 if (!cred) {
955567bc 2122 cred = cred2;
28f2a7c4
JM		 2123 excluded1 = excluded2;
2124 }
955567bc 2125
28f2a7c4
JM		 2126 if (excluded)
2127 *excluded = excluded1;
1a712d2f 2128 return cred;
3b840b67
JM		 2129}
2130
2131
4cad9df1 2132static struct wpa_cred * interworking_credentials_available(
28f2a7c4 2133 struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int *excluded)
4cad9df1
JM		 2134{
2135 struct wpa_cred *cred;
2136
28f2a7c4
JM		 2137 if (excluded)
2138 *excluded = 0;
2139 cred = interworking_credentials_available_helper(wpa_s, bss, 0,
2140 excluded);
4cad9df1
JM		 2141 if (cred)
2142 return cred;
28f2a7c4
JM		 2143 return interworking_credentials_available_helper(wpa_s, bss, 1,
2144 excluded);
4cad9df1
JM		 2145}
2146
2147
aa26ba68
JM		 2148int domain_name_list_contains(struct wpabuf *domain_names,
2149 const char *domain, int exact_match)
00bf219d
JM		 2150{
2151 const u8 *pos, *end;
2152 size_t len;
2153
9914c96f 2154 len = os_strlen(domain);
00bf219d
JM		 2155 pos = wpabuf_head(domain_names);
2156 end = pos + wpabuf_len(domain_names);
2157
67fea55c
JM		 2158 while (end - pos > 1) {
2159 u8 elen;
2160
2161 elen = *pos++;
2162 if (elen > end - pos)
00bf219d
JM		 2163 break;
2164
9914c96f 2165 wpa_hexdump_ascii(MSG_DEBUG, "Interworking: AP domain name",
67fea55c
JM		 2166 pos, elen);
2167 if (elen == len &&
2168 os_strncasecmp(domain, (const char *) pos, len) == 0)
00bf219d 2169 return 1;
67fea55c
JM		 2170 if (!exact_match && elen > len && pos[elen - len - 1] == '.') {
2171 const char *ap = (const char *) pos;
2172 int offset = elen - len;
2173
bc00053c
JM		 2174 if (os_strncasecmp(domain, ap + offset, len) == 0)
2175 return 1;
2176 }
00bf219d 2177
67fea55c 2178 pos += elen;
00bf219d
JM		 2179 }
2180
2181 return 0;
2182}
2183
2184
e99b4f3a
JM		 2185int interworking_home_sp_cred(struct wpa_supplicant *wpa_s,
2186 struct wpa_cred *cred,
2187 struct wpabuf *domain_names)
9914c96f 2188{
463c8ffb 2189 size_t i;
7617388e 2190 int ret = -1;
9914c96f
JM		 2191#ifdef INTERWORKING_3GPP
2192 char nai[100], *realm;
9914c96f 2193
e99b4f3a
JM		 2194 char *imsi = NULL;
2195 int mnc_len = 0;
2196 if (cred->imsi)
2197 imsi = cred->imsi;
729897a3 2198#ifdef PCSC_FUNCS
72300408
JT		 2199 else if (cred->pcsc && wpa_s->scard) {
2200 if (interworking_pcsc_read_imsi(wpa_s) < 0)
2201 return -1;
e99b4f3a
JM		 2202 imsi = wpa_s->imsi;
2203 mnc_len = wpa_s->mnc_len;
2204 }
729897a3 2205#endif /* PCSC_FUNCS */
e241b1b4
JM		 2206#ifdef CONFIG_EAP_PROXY
2207 else if (cred->pcsc && wpa_s->mnc_len > 0 && wpa_s->imsi[0]) {
2208 imsi = wpa_s->imsi;
2209 mnc_len = wpa_s->mnc_len;
2210 }
2211#endif /* CONFIG_EAP_PROXY */
953d25ca
JM		 2212 if (domain_names &&
2213 imsi && build_root_nai(nai, sizeof(nai), imsi, mnc_len, 0) == 0) {
e99b4f3a
JM		 2214 realm = os_strchr(nai, '@');
2215 if (realm)
2216 realm++;
99805a0e
BG		 2217 wpa_msg(wpa_s, MSG_DEBUG,
2218 "Interworking: Search for match with SIM/USIM domain %s",
2219 realm);
e99b4f3a 2220 if (realm &&
bc00053c 2221 domain_name_list_contains(domain_names, realm, 1))
e99b4f3a 2222 return 1;
7617388e
JM		 2223 if (realm)
2224 ret = 0;
e99b4f3a 2225 }
1bb7b8e8
JM		 2226#endif /* INTERWORKING_3GPP */
2227
953d25ca 2228 if (domain_names == NULL || cred->domain == NULL)
7617388e 2229 return ret;
1bb7b8e8 2230
463c8ffb 2231 for (i = 0; i < cred->num_domain; i++) {
99805a0e
BG		 2232 wpa_msg(wpa_s, MSG_DEBUG,
2233 "Interworking: Search for match with home SP FQDN %s",
2234 cred->domain[i]);
bc00053c 2235 if (domain_name_list_contains(domain_names, cred->domain[i], 1))
463c8ffb
JM		 2236 return 1;
2237 }
e99b4f3a
JM		 2238
2239 return 0;
2240}
2241
2242
2243static int interworking_home_sp(struct wpa_supplicant *wpa_s,
2244 struct wpabuf *domain_names)
2245{
2246 struct wpa_cred *cred;
2247
2248 if (domain_names == NULL || wpa_s->conf->cred == NULL)
2249 return -1;
2250
2251 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
2252 int res = interworking_home_sp_cred(wpa_s, cred, domain_names);
2253 if (res)
2254 return res;
9914c96f 2255 }
9914c96f 2256
1bb7b8e8 2257 return 0;
9914c96f
JM		 2258}
2259
2260
5ed7880d
JM		 2261static int interworking_find_network_match(struct wpa_supplicant *wpa_s)
2262{
2263 struct wpa_bss *bss;
2264 struct wpa_ssid *ssid;
2265
2266 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
2267 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
349493bd 2268 if (wpas_network_disabled(wpa_s, ssid) ||
fea7c3a0 2269 ssid->mode != WPAS_MODE_INFRA)
5ed7880d
JM		 2270 continue;
2271 if (ssid->ssid_len != bss->ssid_len ||
2272 os_memcmp(ssid->ssid, bss->ssid, ssid->ssid_len) !=
2273 0)
2274 continue;
2275 /*
2276 * TODO: Consider more accurate matching of security
2277 * configuration similarly to what is done in events.c
2278 */
2279 return 1;
2280 }
2281 }
2282
2283 return 0;
2284}
2285
2286
bc00053c
JM		 2287static int roaming_partner_match(struct wpa_supplicant *wpa_s,
2288 struct roaming_partner *partner,
2289 struct wpabuf *domain_names)
2290{
6402f2fe
JM		 2291 wpa_printf(MSG_DEBUG, "Interworking: Comparing roaming_partner info fqdn='%s' exact_match=%d priority=%u country='%s'",
2292 partner->fqdn, partner->exact_match, partner->priority,
2293 partner->country);
2294 wpa_hexdump_ascii(MSG_DEBUG, "Interworking: Domain names",
2295 wpabuf_head(domain_names),
2296 wpabuf_len(domain_names));
bc00053c
JM		 2297 if (!domain_name_list_contains(domain_names, partner->fqdn,
2298 partner->exact_match))
2299 return 0;
2300 /* TODO: match Country */
2301 return 1;
2302}
2303
2304
2305static u8 roaming_prio(struct wpa_supplicant *wpa_s, struct wpa_cred *cred,
2306 struct wpa_bss *bss)
2307{
2308 size_t i;
2309
6402f2fe
JM		 2310 if (bss->anqp == NULL || bss->anqp->domain_name == NULL) {
2311 wpa_printf(MSG_DEBUG, "Interworking: No ANQP domain name info -> use default roaming partner priority 128");
bc00053c 2312 return 128; /* cannot check preference with domain name */
6402f2fe 2313 }
bc00053c
JM		 2314
2315 if (interworking_home_sp_cred(wpa_s, cred, bss->anqp->domain_name) > 0)
6402f2fe
JM		 2316 {
2317 wpa_printf(MSG_DEBUG, "Interworking: Determined to be home SP -> use maximum preference 0 as roaming partner priority");
bc00053c 2318 return 0; /* max preference for home SP network */
6402f2fe 2319 }
bc00053c
JM		 2320
2321 for (i = 0; i < cred->num_roaming_partner; i++) {
2322 if (roaming_partner_match(wpa_s, &cred->roaming_partner[i],
6402f2fe
JM		 2323 bss->anqp->domain_name)) {
2324 wpa_printf(MSG_DEBUG, "Interworking: Roaming partner preference match - priority %u",
2325 cred->roaming_partner[i].priority);
bc00053c 2326 return cred->roaming_partner[i].priority;
6402f2fe 2327 }
bc00053c
JM		 2328 }
2329
6402f2fe 2330 wpa_printf(MSG_DEBUG, "Interworking: No roaming partner preference match - use default roaming partner priority 128");
bc00053c
JM		 2331 return 128;
2332}
2333
2334
2335static struct wpa_bss * pick_best_roaming_partner(struct wpa_supplicant *wpa_s,
2336 struct wpa_bss *selected,
2337 struct wpa_cred *cred)
2338{
2339 struct wpa_bss *bss;
2340 u8 best_prio, prio;
8b4b9fb3 2341 struct wpa_cred *cred2;
bc00053c
JM		 2342
2343 /*
2344 * Check if any other BSS is operated by a more preferred roaming
2345 * partner.
2346 */
2347
2348 best_prio = roaming_prio(wpa_s, cred, selected);
76a55a8e
JM		 2349 wpa_printf(MSG_DEBUG, "Interworking: roaming_prio=%u for selected BSS "
2350 MACSTR " (cred=%d)", best_prio, MAC2STR(selected->bssid),
2351 cred->id);
bc00053c
JM		 2352
2353 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
2354 if (bss == selected)
2355 continue;
8b4b9fb3
JM		 2356 cred2 = interworking_credentials_available(wpa_s, bss, NULL);
2357 if (!cred2)
bc00053c
JM		 2358 continue;
2359 if (!wpa_bss_get_ie(bss, WLAN_EID_RSN))
2360 continue;
8b4b9fb3 2361 prio = roaming_prio(wpa_s, cred2, bss);
76a55a8e
JM		 2362 wpa_printf(MSG_DEBUG, "Interworking: roaming_prio=%u for BSS "
2363 MACSTR " (cred=%d)", prio, MAC2STR(bss->bssid),
2364 cred2->id);
bc00053c 2365 if (prio < best_prio) {
8b4b9fb3
JM		 2366 int bh1, bh2, load1, load2, conn1, conn2;
2367 bh1 = cred_below_min_backhaul(wpa_s, cred, selected);
2368 load1 = cred_over_max_bss_load(wpa_s, cred, selected);
2369 conn1 = cred_conn_capab_missing(wpa_s, cred, selected);
2370 bh2 = cred_below_min_backhaul(wpa_s, cred2, bss);
2371 load2 = cred_over_max_bss_load(wpa_s, cred2, bss);
2372 conn2 = cred_conn_capab_missing(wpa_s, cred2, bss);
76a55a8e
JM		 2373 wpa_printf(MSG_DEBUG, "Interworking: old: %d %d %d new: %d %d %d",
2374 bh1, load1, conn1, bh2, load2, conn2);
8b4b9fb3
JM		 2375 if (bh1 || load1 || conn1 || !(bh2 || load2 || conn2)) {
2376 wpa_printf(MSG_DEBUG, "Interworking: Better roaming partner " MACSTR " selected", MAC2STR(bss->bssid));
2377 best_prio = prio;
2378 selected = bss;
2379 }
bc00053c
JM		 2380 }
2381 }
2382
bc00053c
JM		 2383 return selected;
2384}
2385
2386
b02fe7ff
JM		 2387static void interworking_select_network(struct wpa_supplicant *wpa_s)
2388{
00bf219d 2389 struct wpa_bss *bss, *selected = NULL, *selected_home = NULL;
8b4b9fb3 2390 struct wpa_bss *selected2 = NULL, *selected2_home = NULL;
b02fe7ff 2391 unsigned int count = 0;
00bf219d
JM		 2392 const char *type;
2393 int res;
bc00053c
JM		 2394 struct wpa_cred *cred, *selected_cred = NULL;
2395 struct wpa_cred *selected_home_cred = NULL;
8b4b9fb3
JM		 2396 struct wpa_cred *selected2_cred = NULL;
2397 struct wpa_cred *selected2_home_cred = NULL;
b02fe7ff
JM		 2398
2399 wpa_s->network_select = 0;
2400
76a55a8e
JM		 2401 wpa_printf(MSG_DEBUG, "Interworking: Select network (auto_select=%d)",
2402 wpa_s->auto_select);
b02fe7ff 2403 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
28f2a7c4 2404 int excluded = 0;
8b4b9fb3 2405 int bh, bss_load, conn_capab;
28f2a7c4
JM		 2406 cred = interworking_credentials_available(wpa_s, bss,
2407 &excluded);
1a712d2f 2408 if (!cred)
b02fe7ff 2409 continue;
99805a0e 2410
63e5caaa
JM		 2411 if (!wpa_bss_get_ie(bss, WLAN_EID_RSN)) {
2412 /*
2413 * We currently support only HS 2.0 networks and those
2414 * are required to use WPA2-Enterprise.
2415 */
99805a0e
BG		 2416 wpa_msg(wpa_s, MSG_DEBUG,
2417 "Interworking: Credential match with " MACSTR
2418 " but network does not use RSN",
2419 MAC2STR(bss->bssid));
63e5caaa
JM		 2420 continue;
2421 }
28f2a7c4
JM		 2422 if (!excluded)
2423 count++;
476aed35
JM		 2424 res = interworking_home_sp(wpa_s, bss->anqp ?
2425 bss->anqp->domain_name : NULL);
00bf219d
JM		 2426 if (res > 0)
2427 type = "home";
2428 else if (res == 0)
2429 type = "roaming";
2430 else
2431 type = "unknown";
8b4b9fb3
JM		 2432 bh = cred_below_min_backhaul(wpa_s, cred, bss);
2433 bss_load = cred_over_max_bss_load(wpa_s, cred, bss);
2434 conn_capab = cred_conn_capab_missing(wpa_s, cred, bss);
74794891 2435 wpa_msg(wpa_s, MSG_INFO, "%s" MACSTR " type=%s%s%s%s id=%d priority=%d sp_priority=%d",
28f2a7c4 2436 excluded ? INTERWORKING_BLACKLISTED : INTERWORKING_AP,
4cad9df1 2437 MAC2STR(bss->bssid), type,
8b4b9fb3
JM		 2438 bh ? " below_min_backhaul=1" : "",
2439 bss_load ? " over_max_bss_load=1" : "",
76a55a8e 2440 conn_capab ? " conn_capab_missing=1" : "",
74794891 2441 cred->id, cred->priority, cred->sp_priority);
28f2a7c4
JM		 2442 if (excluded)
2443 continue;
4d5bda5f
JM		 2444 if (wpa_s->auto_select ||
2445 (wpa_s->conf->auto_interworking &&
2446 wpa_s->auto_network_select)) {
8b4b9fb3 2447 if (bh || bss_load || conn_capab) {
aff419f5 2448 if (selected2_cred == NULL ||
751ac997 2449 cred_prio_cmp(cred, selected2_cred) > 0) {
76a55a8e 2450 wpa_printf(MSG_DEBUG, "Interworking: Mark as selected2");
8b4b9fb3 2451 selected2 = bss;
8b4b9fb3
JM		 2452 selected2_cred = cred;
2453 }
2454 if (res > 0 &&
aff419f5 2455 (selected2_home_cred == NULL ||
751ac997
JM		 2456 cred_prio_cmp(cred, selected2_home_cred) >
2457 0)) {
76a55a8e 2458 wpa_printf(MSG_DEBUG, "Interworking: Mark as selected2_home");
8b4b9fb3 2459 selected2_home = bss;
8b4b9fb3
JM		 2460 selected2_home_cred = cred;
2461 }
2462 } else {
aff419f5 2463 if (selected_cred == NULL ||
751ac997 2464 cred_prio_cmp(cred, selected_cred) > 0) {
76a55a8e 2465 wpa_printf(MSG_DEBUG, "Interworking: Mark as selected");
8b4b9fb3 2466 selected = bss;
8b4b9fb3
JM		 2467 selected_cred = cred;
2468 }
2469 if (res > 0 &&
aff419f5 2470 (selected_home_cred == NULL ||
751ac997
JM		 2471 cred_prio_cmp(cred, selected_home_cred) >
2472 0)) {
76a55a8e 2473 wpa_printf(MSG_DEBUG, "Interworking: Mark as selected_home");
8b4b9fb3 2474 selected_home = bss;
8b4b9fb3
JM		 2475 selected_home_cred = cred;
2476 }
1a712d2f 2477 }
00bf219d
JM		 2478 }
2479 }
2480
1a712d2f 2481 if (selected_home && selected_home != selected &&
aff419f5
JM		 2482 selected_home_cred &&
2483 (selected_cred == NULL ||
751ac997 2484 cred_prio_cmp(selected_home_cred, selected_cred) >= 0)) {
00bf219d 2485 /* Prefer network operated by the Home SP */
76a55a8e 2486 wpa_printf(MSG_DEBUG, "Interworking: Overrided selected with selected_home");
00bf219d 2487 selected = selected_home;
bc00053c 2488 selected_cred = selected_home_cred;
b02fe7ff
JM		 2489 }
2490
8b4b9fb3
JM		 2491 if (!selected) {
2492 if (selected2_home) {
2493 wpa_printf(MSG_DEBUG, "Interworking: Use home BSS with BW limit mismatch since no other network could be selected");
2494 selected = selected2_home;
2495 selected_cred = selected2_home_cred;
2496 } else if (selected2) {
2497 wpa_printf(MSG_DEBUG, "Interworking: Use visited BSS with BW limit mismatch since no other network could be selected");
2498 selected = selected2;
2499 selected_cred = selected2_cred;
2500 }
2501 }
2502
b02fe7ff 2503 if (count == 0) {
5ed7880d
JM		 2504 /*
2505 * No matching network was found based on configured
2506 * credentials. Check whether any of the enabled network blocks
2507 * have matching APs.
2508 */
2509 if (interworking_find_network_match(wpa_s)) {
99805a0e
BG		 2510 wpa_msg(wpa_s, MSG_DEBUG,
2511 "Interworking: Possible BSS match for enabled network configurations");
b77aeae7 2512 if (wpa_s->auto_select) {
2b95f57b 2513 interworking_reconnect(wpa_s);
b77aeae7
MK		 2514 return;
2515 }
5ed7880d
JM		 2516 }
2517
4d5bda5f 2518 if (wpa_s->auto_network_select) {
99805a0e
BG		 2519 wpa_msg(wpa_s, MSG_DEBUG,
2520 "Interworking: Continue scanning after ANQP fetch");
4d5bda5f
JM		 2521 wpa_supplicant_req_scan(wpa_s, wpa_s->scan_interval,
2522 0);
2523 return;
2524 }
2525
b02fe7ff
JM		 2526 wpa_msg(wpa_s, MSG_INFO, INTERWORKING_NO_MATCH "No network "
2527 "with matching credentials found");
192ad3d7
JM		 2528 if (wpa_s->wpa_state == WPA_SCANNING)
2529 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
b02fe7ff
JM		 2530 }
2531
bc00053c 2532 if (selected) {
76a55a8e
JM		 2533 wpa_printf(MSG_DEBUG, "Interworking: Selected " MACSTR,
2534 MAC2STR(selected->bssid));
bc00053c
JM		 2535 selected = pick_best_roaming_partner(wpa_s, selected,
2536 selected_cred);
76a55a8e
JM		 2537 wpa_printf(MSG_DEBUG, "Interworking: Selected " MACSTR
2538 " (after best roaming partner selection)",
2539 MAC2STR(selected->bssid));
2540 wpa_msg(wpa_s, MSG_INFO, INTERWORKING_SELECTED MACSTR,
2541 MAC2STR(selected->bssid));
f91a512f 2542 interworking_connect(wpa_s, selected, 0);
bc00053c 2543 }
b02fe7ff
JM		 2544}
2545
2546
53c9fc1d
JM		 2547static struct wpa_bss_anqp *
2548interworking_match_anqp_info(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
2549{
2550 struct wpa_bss *other;
2551
2552 if (is_zero_ether_addr(bss->hessid))
2553 return NULL; /* Cannot be in the same homegenous ESS */
2554
2555 dl_list_for_each(other, &wpa_s->bss, struct wpa_bss, list) {
2556 if (other == bss)
2557 continue;
2558 if (other->anqp == NULL)
2559 continue;
569d43c7
JM		 2560 if (other->anqp->roaming_consortium == NULL &&
2561 other->anqp->nai_realm == NULL &&
2562 other->anqp->anqp_3gpp == NULL &&
2563 other->anqp->domain_name == NULL)
2564 continue;
53c9fc1d
JM		 2565 if (!(other->flags & WPA_BSS_ANQP_FETCH_TRIED))
2566 continue;
2567 if (os_memcmp(bss->hessid, other->hessid, ETH_ALEN) != 0)
2568 continue;
2569 if (bss->ssid_len != other->ssid_len ||
2570 os_memcmp(bss->ssid, other->ssid, bss->ssid_len) != 0)
2571 continue;
2572
99805a0e
BG		 2573 wpa_msg(wpa_s, MSG_DEBUG,
2574 "Interworking: Share ANQP data with already fetched BSSID "
2575 MACSTR " and " MACSTR,
2576 MAC2STR(other->bssid), MAC2STR(bss->bssid));
53c9fc1d
JM		 2577 other->anqp->users++;
2578 return other->anqp;
2579 }
2580
2581 return NULL;
2582}
2583
2584
afc064fe
JM		 2585static void interworking_next_anqp_fetch(struct wpa_supplicant *wpa_s)
2586{
2587 struct wpa_bss *bss;
2588 int found = 0;
2589 const u8 *ie;
2590
b572df86
JM		 2591 wpa_printf(MSG_DEBUG, "Interworking: next_anqp_fetch - "
2592 "fetch_anqp_in_progress=%d fetch_osu_icon_in_progress=%d",
2593 wpa_s->fetch_anqp_in_progress,
2594 wpa_s->fetch_osu_icon_in_progress);
2595
2596 if (eloop_terminated() || !wpa_s->fetch_anqp_in_progress) {
2597 wpa_printf(MSG_DEBUG, "Interworking: Stop next-ANQP-fetch");
afc064fe 2598 return;
b572df86
JM		 2599 }
2600
876e74aa 2601#ifdef CONFIG_HS20
b572df86
JM		 2602 if (wpa_s->fetch_osu_icon_in_progress) {
2603 wpa_printf(MSG_DEBUG, "Interworking: Next icon (in progress)");
2604 hs20_next_osu_icon(wpa_s);
2605 return;
2606 }
876e74aa 2607#endif /* CONFIG_HS20 */
afc064fe
JM		 2608
2609 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
2610 if (!(bss->caps & IEEE80211_CAP_ESS))
2611 continue;
2612 ie = wpa_bss_get_ie(bss, WLAN_EID_EXT_CAPAB);
2613 if (ie == NULL || ie[1] < 4 || !(ie[5] & 0x80))
2614 continue; /* AP does not support Interworking */
50589751
JM		 2615 if (disallowed_bssid(wpa_s, bss->bssid) ||
2616 disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len))
2617 continue; /* Disallowed BSS */
afc064fe
JM		 2618
2619 if (!(bss->flags & WPA_BSS_ANQP_FETCH_TRIED)) {
476aed35 2620 if (bss->anqp == NULL) {
53c9fc1d
JM		 2621 bss->anqp = interworking_match_anqp_info(wpa_s,
2622 bss);
2623 if (bss->anqp) {
2624 /* Shared data already fetched */
2625 continue;
2626 }
476aed35
JM		 2627 bss->anqp = wpa_bss_anqp_alloc();
2628 if (bss->anqp == NULL)
2629 break;
2630 }
afc064fe
JM		 2631 found++;
2632 bss->flags |= WPA_BSS_ANQP_FETCH_TRIED;
2633 wpa_msg(wpa_s, MSG_INFO, "Starting ANQP fetch for "
2634 MACSTR, MAC2STR(bss->bssid));
2635 interworking_anqp_send_req(wpa_s, bss);
2636 break;
2637 }
2638 }
2639
2640 if (found == 0) {
876e74aa 2641#ifdef CONFIG_HS20
b572df86 2642 if (wpa_s->fetch_osu_info) {
a6739e19 2643 if (wpa_s->num_prov_found == 0 &&
568475b7 2644 wpa_s->fetch_osu_waiting_scan &&
a6739e19
JM		 2645 wpa_s->num_osu_scans < 3) {
2646 wpa_printf(MSG_DEBUG, "HS 2.0: No OSU providers seen - try to scan again");
2647 hs20_start_osu_scan(wpa_s);
2648 return;
2649 }
b572df86
JM		 2650 wpa_printf(MSG_DEBUG, "Interworking: Next icon");
2651 hs20_osu_icon_fetch(wpa_s);
2652 return;
2653 }
876e74aa 2654#endif /* CONFIG_HS20 */
afc064fe
JM		 2655 wpa_msg(wpa_s, MSG_INFO, "ANQP fetch completed");
2656 wpa_s->fetch_anqp_in_progress = 0;
b02fe7ff
JM		 2657 if (wpa_s->network_select)
2658 interworking_select_network(wpa_s);
afc064fe
JM		 2659 }
2660}
2661
2662
4d5bda5f 2663void interworking_start_fetch_anqp(struct wpa_supplicant *wpa_s)
afc064fe
JM		 2664{
2665 struct wpa_bss *bss;
2666
afc064fe
JM		 2667 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list)
2668 bss->flags &= ~WPA_BSS_ANQP_FETCH_TRIED;
2669
2670 wpa_s->fetch_anqp_in_progress = 1;
edd5939a
JM		 2671
2672 /*
2673 * Start actual ANQP operation from eloop call to make sure the loop
2674 * does not end up using excessive recursion.
2675 */
2676 eloop_register_timeout(0, 0, interworking_continue_anqp, wpa_s, NULL);
b02fe7ff
JM		 2677}
2678
2679
2680int interworking_fetch_anqp(struct wpa_supplicant *wpa_s)
2681{
2682 if (wpa_s->fetch_anqp_in_progress || wpa_s->network_select)
2683 return 0;
2684
2685 wpa_s->network_select = 0;
7ff83367 2686 wpa_s->fetch_all_anqp = 1;
b572df86 2687 wpa_s->fetch_osu_info = 0;
b02fe7ff
JM		 2688
2689 interworking_start_fetch_anqp(wpa_s);
afc064fe
JM		 2690
2691 return 0;
2692}
2693
2694
2695void interworking_stop_fetch_anqp(struct wpa_supplicant *wpa_s)
2696{
2697 if (!wpa_s->fetch_anqp_in_progress)
2698 return;
2699
2700 wpa_s->fetch_anqp_in_progress = 0;
2701}
2702
2703
2704int anqp_send_req(struct wpa_supplicant *wpa_s, const u8 *dst,
cf28c66b 2705 u16 info_ids[], size_t num_ids, u32 subtypes)
afc064fe
JM		 2706{
2707 struct wpabuf *buf;
cf28c66b 2708 struct wpabuf *hs20_buf = NULL;
afc064fe
JM		 2709 int ret = 0;
2710 int freq;
2711 struct wpa_bss *bss;
2712 int res;
2713
afc064fe 2714 bss = wpa_bss_get_bssid(wpa_s, dst);
0c280718
MG		 2715 if (!bss) {
2716 wpa_printf(MSG_WARNING,
2717 "ANQP: Cannot send query to unknown BSS "
2718 MACSTR, MAC2STR(dst));
afc064fe 2719 return -1;
0c280718
MG		 2720 }
2721
2722 wpa_bss_anqp_unshare_alloc(bss);
2723 freq = bss->freq;
afc064fe 2724
99805a0e
BG		 2725 wpa_msg(wpa_s, MSG_DEBUG,
2726 "ANQP: Query Request to " MACSTR " for %u id(s)",
2727 MAC2STR(dst), (unsigned int) num_ids);
afc064fe 2728
cf28c66b
DS		 2729#ifdef CONFIG_HS20
2730 if (subtypes != 0) {
2731 hs20_buf = wpabuf_alloc(100);
2732 if (hs20_buf == NULL)
2733 return -1;
2734 hs20_put_anqp_req(subtypes, NULL, 0, hs20_buf);
2735 }
2736#endif /* CONFIG_HS20 */
2737
2738 buf = anqp_build_req(info_ids, num_ids, hs20_buf);
2739 wpabuf_free(hs20_buf);
afc064fe
JM		 2740 if (buf == NULL)
2741 return -1;
2742
2743 res = gas_query_req(wpa_s->gas, dst, freq, buf, anqp_resp_cb, wpa_s);
2744 if (res < 0) {
99805a0e 2745 wpa_msg(wpa_s, MSG_DEBUG, "ANQP: Failed to send Query Request");
24c694b4 2746 wpabuf_free(buf);
afc064fe 2747 ret = -1;
99805a0e
BG		 2748 } else {
2749 wpa_msg(wpa_s, MSG_DEBUG,
2750 "ANQP: Query started with dialog token %u", res);
2751 }
afc064fe 2752
afc064fe
JM		 2753 return ret;
2754}
2755
2756
8c4a1026
JM		 2757static void anqp_add_extra(struct wpa_supplicant *wpa_s,
2758 struct wpa_bss_anqp *anqp, u16 info_id,
2759 const u8 *data, size_t slen)
2760{
2761 struct wpa_bss_anqp_elem *tmp, *elem = NULL;
2762
2763 if (!anqp)
2764 return;
2765
2766 dl_list_for_each(tmp, &anqp->anqp_elems, struct wpa_bss_anqp_elem,
2767 list) {
2768 if (tmp->infoid == info_id) {
2769 elem = tmp;
2770 break;
2771 }
2772 }
2773
2774 if (!elem) {
2775 elem = os_zalloc(sizeof(*elem));
2776 if (!elem)
2777 return;
2778 elem->infoid = info_id;
2779 dl_list_add(&anqp->anqp_elems, &elem->list);
2780 } else {
2781 wpabuf_free(elem->payload);
2782 }
2783
2784 elem->payload = wpabuf_alloc_copy(data, slen);
2785 if (!elem->payload) {
2786 dl_list_del(&elem->list);
2787 os_free(elem);
2788 }
2789}
2790
2791
afc064fe 2792static void interworking_parse_rx_anqp_resp(struct wpa_supplicant *wpa_s,
17b8995c
JM		 2793 struct wpa_bss *bss, const u8 *sa,
2794 u16 info_id,
8dd5c1b4
JN		 2795 const u8 *data, size_t slen,
2796 u8 dialog_token)
afc064fe
JM		 2797{
2798 const u8 *pos = data;
476aed35 2799 struct wpa_bss_anqp *anqp = NULL;
2249d714
JM		 2800#ifdef CONFIG_HS20
2801 u8 type;
2802#endif /* CONFIG_HS20 */
afc064fe 2803
476aed35
JM		 2804 if (bss)
2805 anqp = bss->anqp;
2806
afc064fe
JM		 2807 switch (info_id) {
2808 case ANQP_CAPABILITY_LIST:
2809 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
2810 " ANQP Capability list", MAC2STR(sa));
5ce6ac11
AN		 2811 wpa_hexdump_ascii(MSG_DEBUG, "ANQP: Capability list",
2812 pos, slen);
2813 if (anqp) {
2814 wpabuf_free(anqp->capability_list);
2815 anqp->capability_list = wpabuf_alloc_copy(pos, slen);
2816 }
afc064fe
JM		 2817 break;
2818 case ANQP_VENUE_NAME:
2819 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
2820 " Venue Name", MAC2STR(sa));
2821 wpa_hexdump_ascii(MSG_DEBUG, "ANQP: Venue Name", pos, slen);
476aed35
JM		 2822 if (anqp) {
2823 wpabuf_free(anqp->venue_name);
2824 anqp->venue_name = wpabuf_alloc_copy(pos, slen);
afc064fe
JM		 2825 }
2826 break;
2827 case ANQP_NETWORK_AUTH_TYPE:
2828 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
2829 " Network Authentication Type information",
2830 MAC2STR(sa));
2831 wpa_hexdump_ascii(MSG_DEBUG, "ANQP: Network Authentication "
2832 "Type", pos, slen);
476aed35
JM		 2833 if (anqp) {
2834 wpabuf_free(anqp->network_auth_type);
2835 anqp->network_auth_type = wpabuf_alloc_copy(pos, slen);
afc064fe
JM		 2836 }
2837 break;
2838 case ANQP_ROAMING_CONSORTIUM:
2839 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
2840 " Roaming Consortium list", MAC2STR(sa));
2841 wpa_hexdump_ascii(MSG_DEBUG, "ANQP: Roaming Consortium",
2842 pos, slen);
476aed35
JM		 2843 if (anqp) {
2844 wpabuf_free(anqp->roaming_consortium);
2845 anqp->roaming_consortium = wpabuf_alloc_copy(pos, slen);
afc064fe
JM		 2846 }
2847 break;
2848 case ANQP_IP_ADDR_TYPE_AVAILABILITY:
2849 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
2850 " IP Address Type Availability information",
2851 MAC2STR(sa));
2852 wpa_hexdump(MSG_MSGDUMP, "ANQP: IP Address Availability",
2853 pos, slen);
476aed35
JM		 2854 if (anqp) {
2855 wpabuf_free(anqp->ip_addr_type_availability);
2856 anqp->ip_addr_type_availability =
afc064fe
JM		 2857 wpabuf_alloc_copy(pos, slen);
2858 }
2859 break;
2860 case ANQP_NAI_REALM:
2861 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
2862 " NAI Realm list", MAC2STR(sa));
2863 wpa_hexdump_ascii(MSG_DEBUG, "ANQP: NAI Realm", pos, slen);
476aed35
JM		 2864 if (anqp) {
2865 wpabuf_free(anqp->nai_realm);
2866 anqp->nai_realm = wpabuf_alloc_copy(pos, slen);
afc064fe
JM		 2867 }
2868 break;
2869 case ANQP_3GPP_CELLULAR_NETWORK:
2870 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
2871 " 3GPP Cellular Network information", MAC2STR(sa));
2872 wpa_hexdump_ascii(MSG_DEBUG, "ANQP: 3GPP Cellular Network",
2873 pos, slen);
476aed35
JM		 2874 if (anqp) {
2875 wpabuf_free(anqp->anqp_3gpp);
2876 anqp->anqp_3gpp = wpabuf_alloc_copy(pos, slen);
afc064fe
JM		 2877 }
2878 break;
2879 case ANQP_DOMAIN_NAME:
2880 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
2881 " Domain Name list", MAC2STR(sa));
2882 wpa_hexdump_ascii(MSG_MSGDUMP, "ANQP: Domain Name", pos, slen);
476aed35
JM		 2883 if (anqp) {
2884 wpabuf_free(anqp->domain_name);
2885 anqp->domain_name = wpabuf_alloc_copy(pos, slen);
afc064fe
JM		 2886 }
2887 break;
2888 case ANQP_VENDOR_SPECIFIC:
2889 if (slen < 3)
2890 return;
2891
2892 switch (WPA_GET_BE24(pos)) {
2249d714
JM		 2893#ifdef CONFIG_HS20
2894 case OUI_WFA:
2895 pos += 3;
2896 slen -= 3;
2897
2898 if (slen < 1)
2899 return;
2900 type = *pos++;
2901 slen--;
2902
2903 switch (type) {
2904 case HS20_ANQP_OUI_TYPE:
8266e6c6 2905 hs20_parse_rx_hs20_anqp_resp(wpa_s, bss, sa,
8dd5c1b4
JN		 2906 pos, slen,
2907 dialog_token);
2249d714
JM		 2908 break;
2909 default:
99805a0e
BG		 2910 wpa_msg(wpa_s, MSG_DEBUG,
2911 "HS20: Unsupported ANQP vendor type %u",
2912 type);
2249d714
JM		 2913 break;
2914 }
2915 break;
2916#endif /* CONFIG_HS20 */
afc064fe 2917 default:
99805a0e
BG		 2918 wpa_msg(wpa_s, MSG_DEBUG,
2919 "Interworking: Unsupported vendor-specific ANQP OUI %06x",
2920 WPA_GET_BE24(pos));
afc064fe
JM		 2921 return;
2922 }
2923 break;
2924 default:
99805a0e
BG		 2925 wpa_msg(wpa_s, MSG_DEBUG,
2926 "Interworking: Unsupported ANQP Info ID %u", info_id);
8c4a1026 2927 anqp_add_extra(wpa_s, anqp, info_id, data, slen);
afc064fe
JM		 2928 break;
2929 }
2930}
2931
2932
2933void anqp_resp_cb(void *ctx, const u8 *dst, u8 dialog_token,
2934 enum gas_query_result result,
2935 const struct wpabuf *adv_proto,
2936 const struct wpabuf *resp, u16 status_code)
2937{
2938 struct wpa_supplicant *wpa_s = ctx;
2939 const u8 *pos;
2940 const u8 *end;
2941 u16 info_id;
2942 u16 slen;
17b8995c 2943 struct wpa_bss *bss = NULL, *tmp;
fb09ed33 2944 const char *anqp_result = "SUCCESS";
afc064fe 2945
b572df86
JM		 2946 wpa_printf(MSG_DEBUG, "Interworking: anqp_resp_cb dst=" MACSTR
2947 " dialog_token=%u result=%d status_code=%u",
2948 MAC2STR(dst), dialog_token, result, status_code);
2949 if (result != GAS_QUERY_SUCCESS) {
876e74aa 2950#ifdef CONFIG_HS20
b572df86
JM		 2951 if (wpa_s->fetch_osu_icon_in_progress)
2952 hs20_icon_fetch_failed(wpa_s);
876e74aa 2953#endif /* CONFIG_HS20 */
fb09ed33
AN		 2954 anqp_result = "FAILURE";
2955 goto out;
b572df86 2956 }
afc064fe
JM		 2957
2958 pos = wpabuf_head(adv_proto);
2959 if (wpabuf_len(adv_proto) < 4 || pos[0] != WLAN_EID_ADV_PROTO ||
2960 pos[1] < 2 || pos[3] != ACCESS_NETWORK_QUERY_PROTOCOL) {
99805a0e
BG		 2961 wpa_msg(wpa_s, MSG_DEBUG,
2962 "ANQP: Unexpected Advertisement Protocol in response");
876e74aa 2963#ifdef CONFIG_HS20
b572df86
JM		 2964 if (wpa_s->fetch_osu_icon_in_progress)
2965 hs20_icon_fetch_failed(wpa_s);
876e74aa 2966#endif /* CONFIG_HS20 */
fb09ed33
AN		 2967 anqp_result = "INVALID_FRAME";
2968 goto out;
afc064fe
JM		 2969 }
2970
17b8995c
JM		 2971 /*
2972 * If possible, select the BSS entry based on which BSS entry was used
2973 * for the request. This can help in cases where multiple BSS entries
2974 * may exist for the same AP.
2975 */
2976 dl_list_for_each_reverse(tmp, &wpa_s->bss, struct wpa_bss, list) {
2977 if (tmp == wpa_s->interworking_gas_bss &&
2978 os_memcmp(tmp->bssid, dst, ETH_ALEN) == 0) {
2979 bss = tmp;
2980 break;
2981 }
2982 }
2983 if (bss == NULL)
2984 bss = wpa_bss_get_bssid(wpa_s, dst);
2985
afc064fe
JM		 2986 pos = wpabuf_head(resp);
2987 end = pos + wpabuf_len(resp);
2988
2989 while (pos < end) {
43aee948
JM		 2990 unsigned int left = end - pos;
2991
2992 if (left < 4) {
99805a0e 2993 wpa_msg(wpa_s, MSG_DEBUG, "ANQP: Invalid element");
fb09ed33
AN		 2994 anqp_result = "INVALID_FRAME";
2995 goto out_parse_done;
afc064fe
JM		 2996 }
2997 info_id = WPA_GET_LE16(pos);
2998 pos += 2;
2999 slen = WPA_GET_LE16(pos);
3000 pos += 2;
43aee948
JM		 3001 left -= 4;
3002 if (left < slen) {
99805a0e
BG		 3003 wpa_msg(wpa_s, MSG_DEBUG,
3004 "ANQP: Invalid element length for Info ID %u",
3005 info_id);
fb09ed33
AN		 3006 anqp_result = "INVALID_FRAME";
3007 goto out_parse_done;
afc064fe 3008 }
17b8995c 3009 interworking_parse_rx_anqp_resp(wpa_s, bss, dst, info_id, pos,
8dd5c1b4 3010 slen, dialog_token);
afc064fe
JM		 3011 pos += slen;
3012 }
b572df86 3013
fb09ed33 3014out_parse_done:
876e74aa 3015#ifdef CONFIG_HS20
b572df86 3016 hs20_notify_parse_done(wpa_s);
876e74aa 3017#endif /* CONFIG_HS20 */
fb09ed33
AN		 3018out:
3019 wpa_msg(wpa_s, MSG_INFO, ANQP_QUERY_DONE "addr=" MACSTR " result=%s",
3020 MAC2STR(dst), anqp_result);
afc064fe 3021}
b02fe7ff
JM		 3022
3023
3024static void interworking_scan_res_handler(struct wpa_supplicant *wpa_s,
3025 struct wpa_scan_results *scan_res)
3026{
99805a0e
BG		 3027 wpa_msg(wpa_s, MSG_DEBUG,
3028 "Interworking: Scan results available - start ANQP fetch");
b02fe7ff
JM		 3029 interworking_start_fetch_anqp(wpa_s);
3030}
3031
3032
356d1488
JM		 3033int interworking_select(struct wpa_supplicant *wpa_s, int auto_select,
3034 int *freqs)
b02fe7ff
JM		 3035{
3036 interworking_stop_fetch_anqp(wpa_s);
3037 wpa_s->network_select = 1;
4d5bda5f 3038 wpa_s->auto_network_select = 0;
b02fe7ff 3039 wpa_s->auto_select = !!auto_select;
7ff83367 3040 wpa_s->fetch_all_anqp = 0;
b572df86 3041 wpa_s->fetch_osu_info = 0;
99805a0e
BG		 3042 wpa_msg(wpa_s, MSG_DEBUG,
3043 "Interworking: Start scan for network selection");
b02fe7ff 3044 wpa_s->scan_res_handler = interworking_scan_res_handler;
1bd05d04 3045 wpa_s->normal_scans = 0;
4115303b 3046 wpa_s->scan_req = MANUAL_SCAN_REQ;
356d1488
JM		 3047 os_free(wpa_s->manual_scan_freqs);
3048 wpa_s->manual_scan_freqs = freqs;
1bd05d04 3049 wpa_s->after_wps = 0;
d20c340f 3050 wpa_s->known_wps_freq = 0;
b02fe7ff
JM		 3051 wpa_supplicant_req_scan(wpa_s, 0, 0);
3052
3053 return 0;
3054}
b1f12296
JM		 3055
3056
3057static void gas_resp_cb(void *ctx, const u8 *addr, u8 dialog_token,
3058 enum gas_query_result result,
3059 const struct wpabuf *adv_proto,
3060 const struct wpabuf *resp, u16 status_code)
3061{
3062 struct wpa_supplicant *wpa_s = ctx;
b6a9590b 3063 struct wpabuf *n;
b1f12296
JM		 3064
3065 wpa_msg(wpa_s, MSG_INFO, GAS_RESPONSE_INFO "addr=" MACSTR
3066 " dialog_token=%d status_code=%d resp_len=%d",
3067 MAC2STR(addr), dialog_token, status_code,
3068 resp ? (int) wpabuf_len(resp) : -1);
3069 if (!resp)
3070 return;
3071
b6a9590b
JM		 3072 n = wpabuf_dup(resp);
3073 if (n == NULL)
b1f12296 3074 return;
b6a9590b
JM		 3075 wpabuf_free(wpa_s->prev_gas_resp);
3076 wpa_s->prev_gas_resp = wpa_s->last_gas_resp;
3077 os_memcpy(wpa_s->prev_gas_addr, wpa_s->last_gas_addr, ETH_ALEN);
3078 wpa_s->prev_gas_dialog_token = wpa_s->last_gas_dialog_token;
3079 wpa_s->last_gas_resp = n;
b1f12296
JM		 3080 os_memcpy(wpa_s->last_gas_addr, addr, ETH_ALEN);
3081 wpa_s->last_gas_dialog_token = dialog_token;
3082}
3083
3084
3085int gas_send_request(struct wpa_supplicant *wpa_s, const u8 *dst,
3086 const struct wpabuf *adv_proto,
3087 const struct wpabuf *query)
3088{
3089 struct wpabuf *buf;
3090 int ret = 0;
3091 int freq;
3092 struct wpa_bss *bss;
3093 int res;
3094 size_t len;
8b65fefe 3095 u8 query_resp_len_limit = 0;
b1f12296
JM		 3096
3097 freq = wpa_s->assoc_freq;
3098 bss = wpa_bss_get_bssid(wpa_s, dst);
3099 if (bss)
3100 freq = bss->freq;
3101 if (freq <= 0)
3102 return -1;
3103
99805a0e
BG		 3104 wpa_msg(wpa_s, MSG_DEBUG, "GAS request to " MACSTR " (freq %d MHz)",
3105 MAC2STR(dst), freq);
b1f12296
JM		 3106 wpa_hexdump_buf(MSG_DEBUG, "Advertisement Protocol ID", adv_proto);
3107 wpa_hexdump_buf(MSG_DEBUG, "GAS Query", query);
3108
3109 len = 3 + wpabuf_len(adv_proto) + 2;
3110 if (query)
3111 len += wpabuf_len(query);
3112 buf = gas_build_initial_req(0, len);
3113 if (buf == NULL)
3114 return -1;
3115
3116 /* Advertisement Protocol IE */
3117 wpabuf_put_u8(buf, WLAN_EID_ADV_PROTO);
3118 wpabuf_put_u8(buf, 1 + wpabuf_len(adv_proto)); /* Length */
8b65fefe 3119 wpabuf_put_u8(buf, query_resp_len_limit & 0x7f);
b1f12296
JM		 3120 wpabuf_put_buf(buf, adv_proto);
3121
3122 /* GAS Query */
3123 if (query) {
3124 wpabuf_put_le16(buf, wpabuf_len(query));
3125 wpabuf_put_buf(buf, query);
3126 } else
3127 wpabuf_put_le16(buf, 0);
3128
3129 res = gas_query_req(wpa_s->gas, dst, freq, buf, gas_resp_cb, wpa_s);
3130 if (res < 0) {
99805a0e 3131 wpa_msg(wpa_s, MSG_DEBUG, "GAS: Failed to send Query Request");
24c694b4 3132 wpabuf_free(buf);
b1f12296
JM		 3133 ret = -1;
3134 } else
99805a0e
BG		 3135 wpa_msg(wpa_s, MSG_DEBUG,
3136 "GAS: Query started with dialog token %u", res);
b1f12296 3137
b1f12296
JM		 3138 return ret;
3139}
Unnamed repository; edit this file 'description' to name the repository.