2 * Interworking (IEEE 802.11u)
3 * Copyright (c) 2011-2013, Qualcomm Atheros, Inc.
4 * Copyright (c) 2011-2014, Jouni Malinen <j@w1.fi>
6 * This software may be distributed under the terms of the BSD license.
7 * See README for more details.
13 #include "common/ieee802_11_defs.h"
14 #include "common/gas.h"
15 #include "common/wpa_ctrl.h"
16 #include "utils/pcsc_funcs.h"
17 #include "utils/eloop.h"
18 #include "drivers/driver.h"
19 #include "eap_common/eap_defs.h"
20 #include "eap_peer/eap.h"
21 #include "eap_peer/eap_methods.h"
22 #include "eapol_supp/eapol_supp_sm.h"
23 #include "rsn_supp/wpa.h"
24 #include "wpa_supplicant_i.h"
26 #include "config_ssid.h"
31 #include "gas_query.h"
32 #include "hs20_supplicant.h"
33 #include "interworking.h"
36 #if defined(EAP_SIM) | defined(EAP_SIM_DYNAMIC)
37 #define INTERWORKING_3GPP
39 #if defined(EAP_AKA) | defined(EAP_AKA_DYNAMIC)
40 #define INTERWORKING_3GPP
42 #if defined(EAP_AKA_PRIME) | defined(EAP_AKA_PRIME_DYNAMIC)
43 #define INTERWORKING_3GPP
48 static void interworking_next_anqp_fetch(struct wpa_supplicant *wpa_s);
49 static struct wpa_cred * interworking_credentials_available_realm(
50 struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int ignore_bw,
52 static struct wpa_cred * interworking_credentials_available_3gpp(
53 struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int ignore_bw,
57 static int cred_prio_cmp(const struct wpa_cred *a, const struct wpa_cred *b)
59 if (a->priority > b->priority)
61 if (a->priority < b->priority)
63 if (a->provisioning_sp == NULL || b->provisioning_sp == NULL ||
64 os_strcmp(a->provisioning_sp, b->provisioning_sp) != 0)
66 if (a->sp_priority < b->sp_priority)
68 if (a->sp_priority > b->sp_priority)
74 static void interworking_reconnect(struct wpa_supplicant *wpa_s)
76 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
77 wpa_supplicant_cancel_sched_scan(wpa_s);
78 wpa_supplicant_deauthenticate(wpa_s,
79 WLAN_REASON_DEAUTH_LEAVING);
81 wpa_s->disconnected = 0;
82 wpa_s->reassociate = 1;
84 if (wpa_supplicant_fast_associate(wpa_s) >= 0)
87 wpa_supplicant_req_scan(wpa_s, 0, 0);
91 static struct wpabuf * anqp_build_req(u16 info_ids[], size_t num_ids,
98 buf = gas_anqp_build_initial_req(0, 4 + num_ids * 2 +
99 (extra ? wpabuf_len(extra) : 0));
103 len_pos = gas_anqp_add_element(buf, ANQP_QUERY_LIST);
104 for (i = 0; i < num_ids; i++)
105 wpabuf_put_le16(buf, info_ids[i]);
106 gas_anqp_set_element_len(buf, len_pos);
108 wpabuf_put_buf(buf, extra);
110 gas_anqp_set_len(buf);
116 static void interworking_anqp_resp_cb(void *ctx, const u8 *dst,
118 enum gas_query_result result,
119 const struct wpabuf *adv_proto,
120 const struct wpabuf *resp,
123 struct wpa_supplicant *wpa_s = ctx;
125 wpa_printf(MSG_DEBUG, "ANQP: Response callback dst=" MACSTR
126 " dialog_token=%u result=%d status_code=%u",
127 MAC2STR(dst), dialog_token, result, status_code);
128 anqp_resp_cb(wpa_s, dst, dialog_token, result, adv_proto, resp,
130 interworking_next_anqp_fetch(wpa_s);
134 static int cred_with_roaming_consortium(struct wpa_supplicant *wpa_s)
136 struct wpa_cred *cred;
138 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
139 if (cred->roaming_consortium_len)
141 if (cred->required_roaming_consortium_len)
148 static int cred_with_3gpp(struct wpa_supplicant *wpa_s)
150 struct wpa_cred *cred;
152 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
153 if (cred->pcsc || cred->imsi)
160 static int cred_with_nai_realm(struct wpa_supplicant *wpa_s)
162 struct wpa_cred *cred;
164 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
165 if (cred->pcsc || cred->imsi)
167 if (!cred->eap_method)
169 if (cred->realm && cred->roaming_consortium_len == 0)
176 static int cred_with_domain(struct wpa_supplicant *wpa_s)
178 struct wpa_cred *cred;
180 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
181 if (cred->domain || cred->pcsc || cred->imsi ||
182 cred->roaming_partner)
191 static int cred_with_min_backhaul(struct wpa_supplicant *wpa_s)
193 struct wpa_cred *cred;
195 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
196 if (cred->min_dl_bandwidth_home ||
197 cred->min_ul_bandwidth_home ||
198 cred->min_dl_bandwidth_roaming ||
199 cred->min_ul_bandwidth_roaming)
206 static int cred_with_conn_capab(struct wpa_supplicant *wpa_s)
208 struct wpa_cred *cred;
210 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
211 if (cred->num_req_conn_capab)
217 #endif /* CONFIG_HS20 */
220 static int additional_roaming_consortiums(struct wpa_bss *bss)
223 ie = wpa_bss_get_ie(bss, WLAN_EID_ROAMING_CONSORTIUM);
224 if (ie == NULL || ie[1] == 0)
226 return ie[2]; /* Number of ANQP OIs */
230 static void interworking_continue_anqp(void *eloop_ctx, void *sock_ctx)
232 struct wpa_supplicant *wpa_s = eloop_ctx;
233 interworking_next_anqp_fetch(wpa_s);
237 static int interworking_anqp_send_req(struct wpa_supplicant *wpa_s,
244 size_t num_info_ids = 0;
245 struct wpabuf *extra = NULL;
246 int all = wpa_s->fetch_all_anqp;
248 wpa_printf(MSG_DEBUG, "Interworking: ANQP Query Request to " MACSTR,
249 MAC2STR(bss->bssid));
250 wpa_s->interworking_gas_bss = bss;
252 info_ids[num_info_ids++] = ANQP_CAPABILITY_LIST;
254 info_ids[num_info_ids++] = ANQP_VENUE_NAME;
255 info_ids[num_info_ids++] = ANQP_NETWORK_AUTH_TYPE;
257 if (all || (cred_with_roaming_consortium(wpa_s) &&
258 additional_roaming_consortiums(bss)))
259 info_ids[num_info_ids++] = ANQP_ROAMING_CONSORTIUM;
261 info_ids[num_info_ids++] = ANQP_IP_ADDR_TYPE_AVAILABILITY;
262 if (all || cred_with_nai_realm(wpa_s))
263 info_ids[num_info_ids++] = ANQP_NAI_REALM;
264 if (all || cred_with_3gpp(wpa_s)) {
265 info_ids[num_info_ids++] = ANQP_3GPP_CELLULAR_NETWORK;
266 wpa_supplicant_scard_init(wpa_s, NULL);
268 if (all || cred_with_domain(wpa_s))
269 info_ids[num_info_ids++] = ANQP_DOMAIN_NAME;
270 wpa_hexdump(MSG_DEBUG, "Interworking: ANQP Query info",
271 (u8 *) info_ids, num_info_ids * 2);
274 if (wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE)) {
277 extra = wpabuf_alloc(100);
281 len_pos = gas_anqp_add_element(extra, ANQP_VENDOR_SPECIFIC);
282 wpabuf_put_be24(extra, OUI_WFA);
283 wpabuf_put_u8(extra, HS20_ANQP_OUI_TYPE);
284 wpabuf_put_u8(extra, HS20_STYPE_QUERY_LIST);
285 wpabuf_put_u8(extra, 0); /* Reserved */
286 wpabuf_put_u8(extra, HS20_STYPE_CAPABILITY_LIST);
289 HS20_STYPE_OPERATOR_FRIENDLY_NAME);
290 if (all || cred_with_min_backhaul(wpa_s))
291 wpabuf_put_u8(extra, HS20_STYPE_WAN_METRICS);
292 if (all || cred_with_conn_capab(wpa_s))
293 wpabuf_put_u8(extra, HS20_STYPE_CONNECTION_CAPABILITY);
295 wpabuf_put_u8(extra, HS20_STYPE_OPERATING_CLASS);
297 wpabuf_put_u8(extra, HS20_STYPE_OSU_PROVIDERS_LIST);
298 gas_anqp_set_element_len(extra, len_pos);
300 #endif /* CONFIG_HS20 */
302 buf = anqp_build_req(info_ids, num_info_ids, extra);
307 res = gas_query_req(wpa_s->gas, bss->bssid, bss->freq, buf,
308 interworking_anqp_resp_cb, wpa_s);
310 wpa_printf(MSG_DEBUG, "ANQP: Failed to send Query Request");
313 eloop_register_timeout(0, 0, interworking_continue_anqp, wpa_s,
316 wpa_printf(MSG_DEBUG, "ANQP: Query started with dialog token "
323 struct nai_realm_eap {
326 enum nai_realm_eap_auth_inner_non_eap inner_non_eap;
328 u8 tunneled_cred_type;
335 struct nai_realm_eap *eap;
339 static void nai_realm_free(struct nai_realm *realms, u16 count)
345 for (i = 0; i < count; i++) {
346 os_free(realms[i].eap);
347 os_free(realms[i].realm);
353 static const u8 * nai_realm_parse_eap(struct nai_realm_eap *e, const u8 *pos,
356 u8 elen, auth_count, a;
360 wpa_printf(MSG_DEBUG, "No room for EAP Method fixed fields");
365 if (pos + elen > end || elen < 2) {
366 wpa_printf(MSG_DEBUG, "No room for EAP Method subfield");
372 wpa_printf(MSG_DEBUG, "EAP Method: len=%u method=%u auth_count=%u",
373 elen, e->method, auth_count);
375 for (a = 0; a < auth_count; a++) {
378 if (pos + 2 > end || pos + 2 + pos[1] > end) {
379 wpa_printf(MSG_DEBUG, "No room for Authentication "
380 "Parameter subfield");
388 case NAI_REALM_EAP_AUTH_NON_EAP_INNER_AUTH:
391 e->inner_non_eap = *pos;
392 if (e->method != EAP_TYPE_TTLS)
395 case NAI_REALM_INNER_NON_EAP_PAP:
396 wpa_printf(MSG_DEBUG, "EAP-TTLS/PAP");
398 case NAI_REALM_INNER_NON_EAP_CHAP:
399 wpa_printf(MSG_DEBUG, "EAP-TTLS/CHAP");
401 case NAI_REALM_INNER_NON_EAP_MSCHAP:
402 wpa_printf(MSG_DEBUG, "EAP-TTLS/MSCHAP");
404 case NAI_REALM_INNER_NON_EAP_MSCHAPV2:
405 wpa_printf(MSG_DEBUG, "EAP-TTLS/MSCHAPV2");
409 case NAI_REALM_EAP_AUTH_INNER_AUTH_EAP_METHOD:
412 e->inner_method = *pos;
413 wpa_printf(MSG_DEBUG, "Inner EAP method: %u",
416 case NAI_REALM_EAP_AUTH_CRED_TYPE:
420 wpa_printf(MSG_DEBUG, "Credential Type: %u",
423 case NAI_REALM_EAP_AUTH_TUNNELED_CRED_TYPE:
426 e->tunneled_cred_type = *pos;
427 wpa_printf(MSG_DEBUG, "Tunneled EAP Method Credential "
428 "Type: %u", e->tunneled_cred_type);
431 wpa_printf(MSG_DEBUG, "Unsupported Authentication "
432 "Parameter: id=%u len=%u", id, len);
433 wpa_hexdump(MSG_DEBUG, "Authentication Parameter "
445 static const u8 * nai_realm_parse_realm(struct nai_realm *r, const u8 *pos,
453 wpa_printf(MSG_DEBUG, "No room for NAI Realm Data "
458 len = WPA_GET_LE16(pos); /* NAI Realm Data field Length */
460 if (pos + len > end || len < 3) {
461 wpa_printf(MSG_DEBUG, "No room for NAI Realm Data "
463 len, (unsigned int) (end - pos));
468 r->encoding = *pos++;
470 if (pos + realm_len > f_end) {
471 wpa_printf(MSG_DEBUG, "No room for NAI Realm "
473 realm_len, (unsigned int) (f_end - pos));
476 wpa_hexdump_ascii(MSG_DEBUG, "NAI Realm", pos, realm_len);
477 r->realm = dup_binstr(pos, realm_len);
478 if (r->realm == NULL)
482 if (pos + 1 > f_end) {
483 wpa_printf(MSG_DEBUG, "No room for EAP Method Count");
486 r->eap_count = *pos++;
487 wpa_printf(MSG_DEBUG, "EAP Count: %u", r->eap_count);
488 if (pos + r->eap_count * 3 > f_end) {
489 wpa_printf(MSG_DEBUG, "No room for EAP Methods");
492 r->eap = os_calloc(r->eap_count, sizeof(struct nai_realm_eap));
496 for (e = 0; e < r->eap_count; e++) {
497 pos = nai_realm_parse_eap(&r->eap[e], pos, f_end);
506 static struct nai_realm * nai_realm_parse(struct wpabuf *anqp, u16 *count)
508 struct nai_realm *realm;
512 if (anqp == NULL || wpabuf_len(anqp) < 2)
515 pos = wpabuf_head_u8(anqp);
516 end = pos + wpabuf_len(anqp);
517 num = WPA_GET_LE16(pos);
518 wpa_printf(MSG_DEBUG, "NAI Realm Count: %u", num);
521 if (num * 5 > end - pos) {
522 wpa_printf(MSG_DEBUG, "Invalid NAI Realm Count %u - not "
523 "enough data (%u octets) for that many realms",
524 num, (unsigned int) (end - pos));
528 realm = os_calloc(num, sizeof(struct nai_realm));
532 for (i = 0; i < num; i++) {
533 pos = nai_realm_parse_realm(&realm[i], pos, end);
535 nai_realm_free(realm, num);
545 static int nai_realm_match(struct nai_realm *realm, const char *home_realm)
547 char *tmp, *pos, *end;
550 if (realm->realm == NULL || home_realm == NULL)
553 if (os_strchr(realm->realm, ';') == NULL)
554 return os_strcasecmp(realm->realm, home_realm) == 0;
556 tmp = os_strdup(realm->realm);
562 end = os_strchr(pos, ';');
565 if (os_strcasecmp(pos, home_realm) == 0) {
580 static int nai_realm_cred_username(struct nai_realm_eap *eap)
582 if (eap_get_name(EAP_VENDOR_IETF, eap->method) == NULL)
583 return 0; /* method not supported */
585 if (eap->method != EAP_TYPE_TTLS && eap->method != EAP_TYPE_PEAP &&
586 eap->method != EAP_TYPE_FAST) {
587 /* Only tunneled methods with username/password supported */
591 if (eap->method == EAP_TYPE_PEAP || eap->method == EAP_TYPE_FAST) {
592 if (eap->inner_method &&
593 eap_get_name(EAP_VENDOR_IETF, eap->inner_method) == NULL)
595 if (!eap->inner_method &&
596 eap_get_name(EAP_VENDOR_IETF, EAP_TYPE_MSCHAPV2) == NULL)
600 if (eap->method == EAP_TYPE_TTLS) {
601 if (eap->inner_method == 0 && eap->inner_non_eap == 0)
602 return 1; /* Assume TTLS/MSCHAPv2 is used */
603 if (eap->inner_method &&
604 eap_get_name(EAP_VENDOR_IETF, eap->inner_method) == NULL)
606 if (eap->inner_non_eap &&
607 eap->inner_non_eap != NAI_REALM_INNER_NON_EAP_PAP &&
608 eap->inner_non_eap != NAI_REALM_INNER_NON_EAP_CHAP &&
609 eap->inner_non_eap != NAI_REALM_INNER_NON_EAP_MSCHAP &&
610 eap->inner_non_eap != NAI_REALM_INNER_NON_EAP_MSCHAPV2)
614 if (eap->inner_method &&
615 eap->inner_method != EAP_TYPE_GTC &&
616 eap->inner_method != EAP_TYPE_MSCHAPV2)
623 static int nai_realm_cred_cert(struct nai_realm_eap *eap)
625 if (eap_get_name(EAP_VENDOR_IETF, eap->method) == NULL)
626 return 0; /* method not supported */
628 if (eap->method != EAP_TYPE_TLS) {
629 /* Only EAP-TLS supported for credential authentication */
637 static struct nai_realm_eap * nai_realm_find_eap(struct wpa_cred *cred,
638 struct nai_realm *realm)
643 cred->username == NULL ||
644 cred->username[0] == '\0' ||
645 ((cred->password == NULL ||
646 cred->password[0] == '\0') &&
647 (cred->private_key == NULL ||
648 cred->private_key[0] == '\0')))
651 for (e = 0; e < realm->eap_count; e++) {
652 struct nai_realm_eap *eap = &realm->eap[e];
653 if (cred->password && cred->password[0] &&
654 nai_realm_cred_username(eap))
656 if (cred->private_key && cred->private_key[0] &&
657 nai_realm_cred_cert(eap))
665 #ifdef INTERWORKING_3GPP
667 static int plmn_id_match(struct wpabuf *anqp, const char *imsi, int mnc_len)
669 u8 plmn[3], plmn2[3];
674 * See Annex A of 3GPP TS 24.234 v8.1.0 for description. The network
675 * operator is allowed to include only two digits of the MNC, so allow
676 * matches based on both two and three digit MNC assumptions. Since some
677 * SIM/USIM cards may not expose MNC length conveniently, we may be
678 * provided the default MNC length 3 here and as such, checking with MNC
679 * length 2 is justifiable even though 3GPP TS 24.234 does not mention
680 * that case. Anyway, MCC/MNC pair where both 2 and 3 digit MNC is used
681 * with otherwise matching values would not be good idea in general, so
682 * this should not result in selecting incorrect networks.
684 /* Match with 3 digit MNC */
685 plmn[0] = (imsi[0] - '0') | ((imsi[1] - '0') << 4);
686 plmn[1] = (imsi[2] - '0') | ((imsi[5] - '0') << 4);
687 plmn[2] = (imsi[3] - '0') | ((imsi[4] - '0') << 4);
688 /* Match with 2 digit MNC */
689 plmn2[0] = (imsi[0] - '0') | ((imsi[1] - '0') << 4);
690 plmn2[1] = (imsi[2] - '0') | 0xf0;
691 plmn2[2] = (imsi[3] - '0') | ((imsi[4] - '0') << 4);
695 pos = wpabuf_head_u8(anqp);
696 end = pos + wpabuf_len(anqp);
700 wpa_printf(MSG_DEBUG, "Unsupported GUD version 0x%x", *pos);
705 if (pos + udhl > end) {
706 wpa_printf(MSG_DEBUG, "Invalid UDHL");
711 wpa_printf(MSG_DEBUG, "Interworking: Matching against MCC/MNC alternatives: %02x:%02x:%02x or %02x:%02x:%02x (IMSI %s, MNC length %d)",
712 plmn[0], plmn[1], plmn[2], plmn2[0], plmn2[1], plmn2[2],
715 while (pos + 2 <= end) {
724 if (iei == 0 && len > 0) {
727 wpa_hexdump(MSG_DEBUG, "Interworking: PLMN List information element",
730 for (i = 0; i < num; i++) {
733 if (os_memcmp(pos, plmn, 3) == 0 ||
734 os_memcmp(pos, plmn2, 3) == 0)
735 return 1; /* Found matching PLMN */
739 wpa_hexdump(MSG_DEBUG, "Interworking: Unrecognized 3GPP information element",
750 static int build_root_nai(char *nai, size_t nai_len, const char *imsi,
751 size_t mnc_len, char prefix)
753 const char *sep, *msin;
755 size_t msin_len, plmn_len;
758 * TS 23.003, Clause 14 (3GPP to WLAN Interworking)
760 * <aka:0|sim:1><IMSI>@wlan.mnc<MNC>.mcc<MCC>.3gppnetwork.org
761 * <MNC> is zero-padded to three digits in case two-digit MNC is used
764 if (imsi == NULL || os_strlen(imsi) > 16) {
765 wpa_printf(MSG_DEBUG, "No valid IMSI available");
768 sep = os_strchr(imsi, '-');
770 plmn_len = sep - imsi;
772 } else if (mnc_len && os_strlen(imsi) >= 3 + mnc_len) {
773 plmn_len = 3 + mnc_len;
774 msin = imsi + plmn_len;
777 if (plmn_len != 5 && plmn_len != 6)
779 msin_len = os_strlen(msin);
785 os_memcpy(pos, imsi, plmn_len);
787 os_memcpy(pos, msin, msin_len);
789 pos += os_snprintf(pos, end - pos, "@wlan.mnc");
799 pos += os_snprintf(pos, end - pos, ".mcc%c%c%c.3gppnetwork.org",
800 imsi[0], imsi[1], imsi[2]);
806 static int set_root_nai(struct wpa_ssid *ssid, const char *imsi, char prefix)
809 if (build_root_nai(nai, sizeof(nai), imsi, 0, prefix) < 0)
811 return wpa_config_set_quoted(ssid, "identity", nai);
814 #endif /* INTERWORKING_3GPP */
817 static int already_connected(struct wpa_supplicant *wpa_s,
818 struct wpa_cred *cred, struct wpa_bss *bss)
820 struct wpa_ssid *ssid, *sel_ssid;
821 struct wpa_bss *selected;
823 if (wpa_s->wpa_state < WPA_ASSOCIATED || wpa_s->current_ssid == NULL)
826 ssid = wpa_s->current_ssid;
827 if (ssid->parent_cred != cred)
830 if (ssid->ssid_len != bss->ssid_len ||
831 os_memcmp(ssid->ssid, bss->ssid, bss->ssid_len) != 0)
835 selected = wpa_supplicant_pick_network(wpa_s, &sel_ssid);
836 if (selected && sel_ssid && sel_ssid->priority > ssid->priority)
837 return 0; /* higher priority network in scan results */
843 static void remove_duplicate_network(struct wpa_supplicant *wpa_s,
844 struct wpa_cred *cred,
847 struct wpa_ssid *ssid;
849 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
850 if (ssid->parent_cred != cred)
852 if (ssid->ssid_len != bss->ssid_len ||
853 os_memcmp(ssid->ssid, bss->ssid, bss->ssid_len) != 0)
862 wpa_printf(MSG_DEBUG, "Interworking: Remove duplicate network entry for the same credential");
864 if (ssid == wpa_s->current_ssid) {
865 wpa_sm_set_config(wpa_s->wpa, NULL);
866 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
867 wpa_supplicant_deauthenticate(wpa_s,
868 WLAN_REASON_DEAUTH_LEAVING);
871 wpas_notify_network_removed(wpa_s, ssid);
872 wpa_config_remove_network(wpa_s->conf, ssid->id);
876 static int interworking_set_hs20_params(struct wpa_supplicant *wpa_s,
877 struct wpa_ssid *ssid)
879 const char *key_mgmt = NULL;
880 #ifdef CONFIG_IEEE80211R
882 struct wpa_driver_capa capa;
884 res = wpa_drv_get_capa(wpa_s, &capa);
885 if (res == 0 && capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_FT) {
886 key_mgmt = wpa_s->conf->pmf != NO_MGMT_FRAME_PROTECTION ?
887 "WPA-EAP WPA-EAP-SHA256 FT-EAP" :
890 #endif /* CONFIG_IEEE80211R */
893 key_mgmt = wpa_s->conf->pmf != NO_MGMT_FRAME_PROTECTION ?
894 "WPA-EAP WPA-EAP-SHA256" : "WPA-EAP";
895 if (wpa_config_set(ssid, "key_mgmt", key_mgmt, 0) < 0)
897 if (wpa_config_set(ssid, "proto", "RSN", 0) < 0)
899 if (wpa_config_set(ssid, "pairwise", "CCMP", 0) < 0)
905 static int interworking_connect_3gpp(struct wpa_supplicant *wpa_s,
906 struct wpa_cred *cred,
909 #ifdef INTERWORKING_3GPP
910 struct wpa_ssid *ssid;
915 if (bss->anqp == NULL || bss->anqp->anqp_3gpp == NULL)
918 wpa_printf(MSG_DEBUG, "Interworking: Connect with " MACSTR " (3GPP)",
919 MAC2STR(bss->bssid));
921 if (already_connected(wpa_s, cred, bss)) {
922 wpa_msg(wpa_s, MSG_INFO, INTERWORKING_ALREADY_CONNECTED MACSTR,
923 MAC2STR(bss->bssid));
927 remove_duplicate_network(wpa_s, cred, bss);
929 ssid = wpa_config_add_network(wpa_s->conf);
932 ssid->parent_cred = cred;
934 wpas_notify_network_added(wpa_s, ssid);
935 wpa_config_set_network_defaults(ssid);
936 ssid->priority = cred->priority;
938 ssid->ssid = os_zalloc(bss->ssid_len + 1);
939 if (ssid->ssid == NULL)
941 os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
942 ssid->ssid_len = bss->ssid_len;
943 ssid->eap.sim_num = cred->sim_num;
945 if (interworking_set_hs20_params(wpa_s, ssid) < 0)
948 eap_type = EAP_TYPE_SIM;
949 if (cred->pcsc && wpa_s->scard && scard_supports_umts(wpa_s->scard))
950 eap_type = EAP_TYPE_AKA;
951 if (cred->eap_method && cred->eap_method[0].vendor == EAP_VENDOR_IETF) {
952 if (cred->eap_method[0].method == EAP_TYPE_SIM ||
953 cred->eap_method[0].method == EAP_TYPE_AKA ||
954 cred->eap_method[0].method == EAP_TYPE_AKA_PRIME)
955 eap_type = cred->eap_method[0].method;
961 res = wpa_config_set(ssid, "eap", "SIM", 0);
965 res = wpa_config_set(ssid, "eap", "AKA", 0);
967 case EAP_TYPE_AKA_PRIME:
969 res = wpa_config_set(ssid, "eap", "AKA'", 0);
976 wpa_printf(MSG_DEBUG, "Selected EAP method (%d) not supported",
981 if (!cred->pcsc && set_root_nai(ssid, cred->imsi, prefix) < 0) {
982 wpa_printf(MSG_DEBUG, "Failed to set Root NAI");
986 if (cred->milenage && cred->milenage[0]) {
987 if (wpa_config_set_quoted(ssid, "password",
990 } else if (cred->pcsc) {
991 if (wpa_config_set_quoted(ssid, "pcsc", "") < 0)
993 if (wpa_s->conf->pcsc_pin &&
994 wpa_config_set_quoted(ssid, "pin", wpa_s->conf->pcsc_pin)
999 wpa_s->next_ssid = ssid;
1000 wpa_config_update_prio_list(wpa_s->conf);
1001 interworking_reconnect(wpa_s);
1006 wpas_notify_network_removed(wpa_s, ssid);
1007 wpa_config_remove_network(wpa_s->conf, ssid->id);
1008 #endif /* INTERWORKING_3GPP */
1013 static int roaming_consortium_element_match(const u8 *ie, const u8 *rc_id,
1016 const u8 *pos, *end;
1023 end = ie + 2 + ie[1];
1025 /* Roaming Consortium element:
1026 * Number of ANQP OIs
1027 * OI #1 and #2 lengths
1028 * OI #1, [OI #2], [OI #3]
1034 pos++; /* skip Number of ANQP OIs */
1036 if (pos + (lens & 0x0f) + (lens >> 4) > end)
1039 if ((lens & 0x0f) == rc_len && os_memcmp(pos, rc_id, rc_len) == 0)
1043 if ((lens >> 4) == rc_len && os_memcmp(pos, rc_id, rc_len) == 0)
1047 if (pos < end && (size_t) (end - pos) == rc_len &&
1048 os_memcmp(pos, rc_id, rc_len) == 0)
1055 static int roaming_consortium_anqp_match(const struct wpabuf *anqp,
1056 const u8 *rc_id, size_t rc_len)
1058 const u8 *pos, *end;
1064 pos = wpabuf_head(anqp);
1065 end = pos + wpabuf_len(anqp);
1067 /* Set of <OI Length, OI> duples */
1070 if (pos + len > end)
1072 if (len == rc_len && os_memcmp(pos, rc_id, rc_len) == 0)
1081 static int roaming_consortium_match(const u8 *ie, const struct wpabuf *anqp,
1082 const u8 *rc_id, size_t rc_len)
1084 return roaming_consortium_element_match(ie, rc_id, rc_len) ||
1085 roaming_consortium_anqp_match(anqp, rc_id, rc_len);
1089 static int cred_no_required_oi_match(struct wpa_cred *cred, struct wpa_bss *bss)
1093 if (cred->required_roaming_consortium_len == 0)
1096 ie = wpa_bss_get_ie(bss, WLAN_EID_ROAMING_CONSORTIUM);
1099 (bss->anqp == NULL || bss->anqp->roaming_consortium == NULL))
1102 return !roaming_consortium_match(ie,
1104 bss->anqp->roaming_consortium : NULL,
1105 cred->required_roaming_consortium,
1106 cred->required_roaming_consortium_len);
1110 static int cred_excluded_ssid(struct wpa_cred *cred, struct wpa_bss *bss)
1114 if (!cred->excluded_ssid)
1117 for (i = 0; i < cred->num_excluded_ssid; i++) {
1118 struct excluded_ssid *e = &cred->excluded_ssid[i];
1119 if (bss->ssid_len == e->ssid_len &&
1120 os_memcmp(bss->ssid, e->ssid, e->ssid_len) == 0)
1128 static int cred_below_min_backhaul(struct wpa_supplicant *wpa_s,
1129 struct wpa_cred *cred, struct wpa_bss *bss)
1132 unsigned int dl_bandwidth, ul_bandwidth;
1134 u8 wan_info, dl_load, ul_load;
1136 u32 ul_speed, dl_speed;
1138 if (!cred->min_dl_bandwidth_home &&
1139 !cred->min_ul_bandwidth_home &&
1140 !cred->min_dl_bandwidth_roaming &&
1141 !cred->min_ul_bandwidth_roaming)
1142 return 0; /* No bandwidth constraint specified */
1144 if (bss->anqp == NULL || bss->anqp->hs20_wan_metrics == NULL)
1145 return 0; /* No WAN Metrics known - ignore constraint */
1147 wan = wpabuf_head(bss->anqp->hs20_wan_metrics);
1149 if (wan_info & BIT(3))
1150 return 1; /* WAN link at capacity */
1151 lmd = WPA_GET_LE16(wan + 11);
1153 return 0; /* Downlink/Uplink Load was not measured */
1154 dl_speed = WPA_GET_LE32(wan + 1);
1155 ul_speed = WPA_GET_LE32(wan + 5);
1159 if (dl_speed >= 0xffffff)
1160 dl_bandwidth = dl_speed / 255 * (255 - dl_load);
1162 dl_bandwidth = dl_speed * (255 - dl_load) / 255;
1164 if (ul_speed >= 0xffffff)
1165 ul_bandwidth = ul_speed / 255 * (255 - ul_load);
1167 ul_bandwidth = ul_speed * (255 - ul_load) / 255;
1169 res = interworking_home_sp_cred(wpa_s, cred, bss->anqp ?
1170 bss->anqp->domain_name : NULL);
1172 if (cred->min_dl_bandwidth_home > dl_bandwidth)
1174 if (cred->min_ul_bandwidth_home > ul_bandwidth)
1177 if (cred->min_dl_bandwidth_roaming > dl_bandwidth)
1179 if (cred->min_ul_bandwidth_roaming > ul_bandwidth)
1187 static int cred_over_max_bss_load(struct wpa_supplicant *wpa_s,
1188 struct wpa_cred *cred, struct wpa_bss *bss)
1193 if (!cred->max_bss_load)
1194 return 0; /* No BSS Load constraint specified */
1196 ie = wpa_bss_get_ie(bss, WLAN_EID_BSS_LOAD);
1197 if (ie == NULL || ie[1] < 3)
1198 return 0; /* No BSS Load advertised */
1200 res = interworking_home_sp_cred(wpa_s, cred, bss->anqp ?
1201 bss->anqp->domain_name : NULL);
1203 return 0; /* Not a home network */
1205 return ie[4] > cred->max_bss_load;
1209 static int has_proto_match(const u8 *pos, const u8 *end, u8 proto)
1211 while (pos + 4 <= end) {
1212 if (pos[0] == proto && pos[3] == 1 /* Open */)
1221 static int has_proto_port_match(const u8 *pos, const u8 *end, u8 proto,
1224 while (pos + 4 <= end) {
1225 if (pos[0] == proto && WPA_GET_LE16(&pos[1]) == port &&
1226 pos[3] == 1 /* Open */)
1235 static int cred_conn_capab_missing(struct wpa_supplicant *wpa_s,
1236 struct wpa_cred *cred, struct wpa_bss *bss)
1239 const u8 *capab, *end;
1243 if (!cred->num_req_conn_capab)
1244 return 0; /* No connection capability constraint specified */
1246 if (bss->anqp == NULL || bss->anqp->hs20_connection_capability == NULL)
1247 return 0; /* No Connection Capability known - ignore constraint
1250 res = interworking_home_sp_cred(wpa_s, cred, bss->anqp ?
1251 bss->anqp->domain_name : NULL);
1253 return 0; /* No constraint in home network */
1255 capab = wpabuf_head(bss->anqp->hs20_connection_capability);
1256 end = capab + wpabuf_len(bss->anqp->hs20_connection_capability);
1258 for (i = 0; i < cred->num_req_conn_capab; i++) {
1259 ports = cred->req_conn_capab_port[i];
1261 if (!has_proto_match(capab, end,
1262 cred->req_conn_capab_proto[i]))
1265 for (j = 0; ports[j] > -1; j++) {
1266 if (!has_proto_port_match(
1268 cred->req_conn_capab_proto[i],
1279 static struct wpa_cred * interworking_credentials_available_roaming_consortium(
1280 struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int ignore_bw,
1283 struct wpa_cred *cred, *selected = NULL;
1285 int is_excluded = 0;
1287 ie = wpa_bss_get_ie(bss, WLAN_EID_ROAMING_CONSORTIUM);
1290 (bss->anqp == NULL || bss->anqp->roaming_consortium == NULL))
1293 if (wpa_s->conf->cred == NULL)
1296 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
1297 if (cred->roaming_consortium_len == 0)
1300 if (!roaming_consortium_match(ie,
1302 bss->anqp->roaming_consortium :
1304 cred->roaming_consortium,
1305 cred->roaming_consortium_len))
1308 if (cred_no_required_oi_match(cred, bss))
1310 if (!ignore_bw && cred_below_min_backhaul(wpa_s, cred, bss))
1312 if (!ignore_bw && cred_over_max_bss_load(wpa_s, cred, bss))
1314 if (!ignore_bw && cred_conn_capab_missing(wpa_s, cred, bss))
1316 if (cred_excluded_ssid(cred, bss)) {
1317 if (excluded == NULL)
1319 if (selected == NULL) {
1324 if (selected == NULL || is_excluded ||
1325 cred_prio_cmp(selected, cred) < 0) {
1333 *excluded = is_excluded;
1339 static int interworking_set_eap_params(struct wpa_ssid *ssid,
1340 struct wpa_cred *cred, int ttls)
1342 if (cred->eap_method) {
1343 ttls = cred->eap_method->vendor == EAP_VENDOR_IETF &&
1344 cred->eap_method->method == EAP_TYPE_TTLS;
1346 os_free(ssid->eap.eap_methods);
1347 ssid->eap.eap_methods =
1348 os_malloc(sizeof(struct eap_method_type) * 2);
1349 if (ssid->eap.eap_methods == NULL)
1351 os_memcpy(ssid->eap.eap_methods, cred->eap_method,
1352 sizeof(*cred->eap_method));
1353 ssid->eap.eap_methods[1].vendor = EAP_VENDOR_IETF;
1354 ssid->eap.eap_methods[1].method = EAP_TYPE_NONE;
1357 if (ttls && cred->username && cred->username[0]) {
1360 /* Use anonymous NAI in Phase 1 */
1361 pos = os_strchr(cred->username, '@');
1363 size_t buflen = 9 + os_strlen(pos) + 1;
1364 anon = os_malloc(buflen);
1367 os_snprintf(anon, buflen, "anonymous%s", pos);
1368 } else if (cred->realm) {
1369 size_t buflen = 10 + os_strlen(cred->realm) + 1;
1370 anon = os_malloc(buflen);
1373 os_snprintf(anon, buflen, "anonymous@%s", cred->realm);
1375 anon = os_strdup("anonymous");
1379 if (wpa_config_set_quoted(ssid, "anonymous_identity", anon) <
1387 if (cred->username && cred->username[0] &&
1388 wpa_config_set_quoted(ssid, "identity", cred->username) < 0)
1391 if (cred->password && cred->password[0]) {
1392 if (cred->ext_password &&
1393 wpa_config_set(ssid, "password", cred->password, 0) < 0)
1395 if (!cred->ext_password &&
1396 wpa_config_set_quoted(ssid, "password", cred->password) <
1401 if (cred->client_cert && cred->client_cert[0] &&
1402 wpa_config_set_quoted(ssid, "client_cert", cred->client_cert) < 0)
1406 if (cred->private_key &&
1407 os_strncmp(cred->private_key, "keystore://", 11) == 0) {
1408 /* Use OpenSSL engine configuration for Android keystore */
1409 if (wpa_config_set_quoted(ssid, "engine_id", "keystore") < 0 ||
1410 wpa_config_set_quoted(ssid, "key_id",
1411 cred->private_key + 11) < 0 ||
1412 wpa_config_set(ssid, "engine", "1", 0) < 0)
1415 #endif /* ANDROID */
1416 if (cred->private_key && cred->private_key[0] &&
1417 wpa_config_set_quoted(ssid, "private_key", cred->private_key) < 0)
1420 if (cred->private_key_passwd && cred->private_key_passwd[0] &&
1421 wpa_config_set_quoted(ssid, "private_key_passwd",
1422 cred->private_key_passwd) < 0)
1426 os_free(ssid->eap.phase1);
1427 ssid->eap.phase1 = os_strdup(cred->phase1);
1430 os_free(ssid->eap.phase2);
1431 ssid->eap.phase2 = os_strdup(cred->phase2);
1434 if (cred->ca_cert && cred->ca_cert[0] &&
1435 wpa_config_set_quoted(ssid, "ca_cert", cred->ca_cert) < 0)
1438 if (cred->domain_suffix_match && cred->domain_suffix_match[0] &&
1439 wpa_config_set_quoted(ssid, "domain_suffix_match",
1440 cred->domain_suffix_match) < 0)
1443 ssid->eap.ocsp = cred->ocsp;
1449 static int interworking_connect_roaming_consortium(
1450 struct wpa_supplicant *wpa_s, struct wpa_cred *cred,
1451 struct wpa_bss *bss)
1453 struct wpa_ssid *ssid;
1455 wpa_printf(MSG_DEBUG, "Interworking: Connect with " MACSTR " based on "
1456 "roaming consortium match", MAC2STR(bss->bssid));
1458 if (already_connected(wpa_s, cred, bss)) {
1459 wpa_msg(wpa_s, MSG_INFO, INTERWORKING_ALREADY_CONNECTED MACSTR,
1460 MAC2STR(bss->bssid));
1464 remove_duplicate_network(wpa_s, cred, bss);
1466 ssid = wpa_config_add_network(wpa_s->conf);
1469 ssid->parent_cred = cred;
1470 wpas_notify_network_added(wpa_s, ssid);
1471 wpa_config_set_network_defaults(ssid);
1472 ssid->priority = cred->priority;
1473 ssid->temporary = 1;
1474 ssid->ssid = os_zalloc(bss->ssid_len + 1);
1475 if (ssid->ssid == NULL)
1477 os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
1478 ssid->ssid_len = bss->ssid_len;
1480 if (interworking_set_hs20_params(wpa_s, ssid) < 0)
1483 if (cred->eap_method == NULL) {
1484 wpa_printf(MSG_DEBUG, "Interworking: No EAP method set for "
1485 "credential using roaming consortium");
1489 if (interworking_set_eap_params(
1491 cred->eap_method->vendor == EAP_VENDOR_IETF &&
1492 cred->eap_method->method == EAP_TYPE_TTLS) < 0)
1495 wpa_s->next_ssid = ssid;
1496 wpa_config_update_prio_list(wpa_s->conf);
1497 interworking_reconnect(wpa_s);
1502 wpas_notify_network_removed(wpa_s, ssid);
1503 wpa_config_remove_network(wpa_s->conf, ssid->id);
1508 static int interworking_connect_helper(struct wpa_supplicant *wpa_s,
1509 struct wpa_bss *bss, int allow_excluded)
1511 struct wpa_cred *cred, *cred_rc, *cred_3gpp;
1512 struct wpa_ssid *ssid;
1513 struct nai_realm *realm;
1514 struct nai_realm_eap *eap = NULL;
1517 int excluded = 0, *excl = allow_excluded ? &excluded : NULL;
1519 if (wpa_s->conf->cred == NULL || bss == NULL)
1521 if (disallowed_bssid(wpa_s, bss->bssid) ||
1522 disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
1523 wpa_printf(MSG_DEBUG, "Interworking: Reject connection to disallowed BSS "
1524 MACSTR, MAC2STR(bss->bssid));
1528 wpa_printf(MSG_DEBUG, "Interworking: Considering BSS " MACSTR
1529 " for connection (allow_excluded=%d)",
1530 MAC2STR(bss->bssid), allow_excluded);
1532 if (!wpa_bss_get_ie(bss, WLAN_EID_RSN)) {
1534 * We currently support only HS 2.0 networks and those are
1535 * required to use WPA2-Enterprise.
1537 wpa_printf(MSG_DEBUG, "Interworking: Network does not use "
1542 cred_rc = interworking_credentials_available_roaming_consortium(
1543 wpa_s, bss, 0, excl);
1545 wpa_printf(MSG_DEBUG, "Interworking: Highest roaming "
1546 "consortium matching credential priority %d "
1548 cred_rc->priority, cred_rc->sp_priority);
1549 if (allow_excluded && excl && !(*excl))
1553 cred = interworking_credentials_available_realm(wpa_s, bss, 0, excl);
1555 wpa_printf(MSG_DEBUG, "Interworking: Highest NAI Realm list "
1556 "matching credential priority %d sp_priority %d",
1557 cred->priority, cred->sp_priority);
1558 if (allow_excluded && excl && !(*excl))
1562 cred_3gpp = interworking_credentials_available_3gpp(wpa_s, bss, 0,
1565 wpa_printf(MSG_DEBUG, "Interworking: Highest 3GPP matching "
1566 "credential priority %d sp_priority %d",
1567 cred_3gpp->priority, cred_3gpp->sp_priority);
1568 if (allow_excluded && excl && !(*excl))
1572 if (!cred_rc && !cred && !cred_3gpp) {
1573 wpa_printf(MSG_DEBUG, "Interworking: No full credential matches - consider options without BW(etc.) limits");
1574 cred_rc = interworking_credentials_available_roaming_consortium(
1575 wpa_s, bss, 1, excl);
1577 wpa_printf(MSG_DEBUG, "Interworking: Highest roaming "
1578 "consortium matching credential priority %d "
1579 "sp_priority %d (ignore BW)",
1580 cred_rc->priority, cred_rc->sp_priority);
1581 if (allow_excluded && excl && !(*excl))
1585 cred = interworking_credentials_available_realm(wpa_s, bss, 1,
1588 wpa_printf(MSG_DEBUG, "Interworking: Highest NAI Realm "
1589 "list matching credential priority %d "
1590 "sp_priority %d (ignore BW)",
1591 cred->priority, cred->sp_priority);
1592 if (allow_excluded && excl && !(*excl))
1596 cred_3gpp = interworking_credentials_available_3gpp(wpa_s, bss,
1599 wpa_printf(MSG_DEBUG, "Interworking: Highest 3GPP "
1600 "matching credential priority %d "
1601 "sp_priority %d (ignore BW)",
1602 cred_3gpp->priority, cred_3gpp->sp_priority);
1603 if (allow_excluded && excl && !(*excl))
1609 (cred == NULL || cred_prio_cmp(cred_rc, cred) >= 0) &&
1610 (cred_3gpp == NULL || cred_prio_cmp(cred_rc, cred_3gpp) >= 0))
1611 return interworking_connect_roaming_consortium(wpa_s, cred_rc,
1615 (cred == NULL || cred_prio_cmp(cred_3gpp, cred) >= 0)) {
1616 return interworking_connect_3gpp(wpa_s, cred_3gpp, bss);
1620 wpa_printf(MSG_DEBUG, "Interworking: No matching credentials "
1621 "found for " MACSTR, MAC2STR(bss->bssid));
1625 realm = nai_realm_parse(bss->anqp ? bss->anqp->nai_realm : NULL,
1627 if (realm == NULL) {
1628 wpa_printf(MSG_DEBUG, "Interworking: Could not parse NAI "
1629 "Realm list from " MACSTR, MAC2STR(bss->bssid));
1633 for (i = 0; i < count; i++) {
1634 if (!nai_realm_match(&realm[i], cred->realm))
1636 eap = nai_realm_find_eap(cred, &realm[i]);
1642 wpa_printf(MSG_DEBUG, "Interworking: No matching credentials "
1643 "and EAP method found for " MACSTR,
1644 MAC2STR(bss->bssid));
1645 nai_realm_free(realm, count);
1649 wpa_printf(MSG_DEBUG, "Interworking: Connect with " MACSTR,
1650 MAC2STR(bss->bssid));
1652 if (already_connected(wpa_s, cred, bss)) {
1653 wpa_msg(wpa_s, MSG_INFO, INTERWORKING_ALREADY_CONNECTED MACSTR,
1654 MAC2STR(bss->bssid));
1655 nai_realm_free(realm, count);
1659 remove_duplicate_network(wpa_s, cred, bss);
1661 ssid = wpa_config_add_network(wpa_s->conf);
1663 nai_realm_free(realm, count);
1666 ssid->parent_cred = cred;
1667 wpas_notify_network_added(wpa_s, ssid);
1668 wpa_config_set_network_defaults(ssid);
1669 ssid->priority = cred->priority;
1670 ssid->temporary = 1;
1671 ssid->ssid = os_zalloc(bss->ssid_len + 1);
1672 if (ssid->ssid == NULL)
1674 os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
1675 ssid->ssid_len = bss->ssid_len;
1677 if (interworking_set_hs20_params(wpa_s, ssid) < 0)
1680 if (wpa_config_set(ssid, "eap", eap_get_name(EAP_VENDOR_IETF,
1681 eap->method), 0) < 0)
1684 switch (eap->method) {
1686 if (eap->inner_method) {
1687 os_snprintf(buf, sizeof(buf), "\"autheap=%s\"",
1688 eap_get_name(EAP_VENDOR_IETF,
1689 eap->inner_method));
1690 if (wpa_config_set(ssid, "phase2", buf, 0) < 0)
1694 switch (eap->inner_non_eap) {
1695 case NAI_REALM_INNER_NON_EAP_PAP:
1696 if (wpa_config_set(ssid, "phase2", "\"auth=PAP\"", 0) <
1700 case NAI_REALM_INNER_NON_EAP_CHAP:
1701 if (wpa_config_set(ssid, "phase2", "\"auth=CHAP\"", 0)
1705 case NAI_REALM_INNER_NON_EAP_MSCHAP:
1706 if (wpa_config_set(ssid, "phase2", "\"auth=MSCHAP\"",
1710 case NAI_REALM_INNER_NON_EAP_MSCHAPV2:
1711 if (wpa_config_set(ssid, "phase2", "\"auth=MSCHAPV2\"",
1716 /* EAP params were not set - assume TTLS/MSCHAPv2 */
1717 if (wpa_config_set(ssid, "phase2", "\"auth=MSCHAPV2\"",
1725 if (wpa_config_set(ssid, "phase1", "\"fast_provisioning=2\"",
1728 if (wpa_config_set(ssid, "pac_file",
1729 "\"blob://pac_interworking\"", 0) < 0)
1731 os_snprintf(buf, sizeof(buf), "\"auth=%s\"",
1732 eap_get_name(EAP_VENDOR_IETF,
1735 EAP_TYPE_MSCHAPV2));
1736 if (wpa_config_set(ssid, "phase2", buf, 0) < 0)
1743 if (interworking_set_eap_params(ssid, cred,
1744 eap->method == EAP_TYPE_TTLS) < 0)
1747 nai_realm_free(realm, count);
1749 wpa_s->next_ssid = ssid;
1750 wpa_config_update_prio_list(wpa_s->conf);
1751 interworking_reconnect(wpa_s);
1756 wpas_notify_network_removed(wpa_s, ssid);
1757 wpa_config_remove_network(wpa_s->conf, ssid->id);
1758 nai_realm_free(realm, count);
1763 int interworking_connect(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
1765 return interworking_connect_helper(wpa_s, bss, 1);
1770 static int interworking_pcsc_read_imsi(struct wpa_supplicant *wpa_s)
1774 if (wpa_s->imsi[0] && wpa_s->mnc_len)
1777 len = sizeof(wpa_s->imsi) - 1;
1778 if (scard_get_imsi(wpa_s->scard, wpa_s->imsi, &len)) {
1779 scard_deinit(wpa_s->scard);
1780 wpa_s->scard = NULL;
1781 wpa_msg(wpa_s, MSG_ERROR, "Could not read IMSI");
1784 wpa_s->imsi[len] = '\0';
1785 wpa_s->mnc_len = scard_get_mnc_len(wpa_s->scard);
1786 wpa_printf(MSG_DEBUG, "SCARD: IMSI %s (MNC length %d)",
1787 wpa_s->imsi, wpa_s->mnc_len);
1791 #endif /* PCSC_FUNCS */
1794 static struct wpa_cred * interworking_credentials_available_3gpp(
1795 struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int ignore_bw,
1798 struct wpa_cred *selected = NULL;
1799 #ifdef INTERWORKING_3GPP
1800 struct wpa_cred *cred;
1802 int is_excluded = 0;
1804 if (bss->anqp == NULL || bss->anqp->anqp_3gpp == NULL)
1807 #ifdef CONFIG_EAP_PROXY
1808 if (!wpa_s->imsi[0]) {
1810 wpa_printf(MSG_DEBUG, "Interworking: IMSI not available - try to read again through eap_proxy");
1811 wpa_s->mnc_len = eapol_sm_get_eap_proxy_imsi(wpa_s->eapol,
1814 if (wpa_s->mnc_len > 0) {
1815 wpa_s->imsi[len] = '\0';
1816 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI %s (MNC length %d)",
1817 wpa_s->imsi, wpa_s->mnc_len);
1819 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI not available");
1822 #endif /* CONFIG_EAP_PROXY */
1824 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
1832 if (cred->pcsc && wpa_s->scard) {
1833 if (interworking_pcsc_read_imsi(wpa_s) < 0)
1836 mnc_len = wpa_s->mnc_len;
1839 #endif /* PCSC_FUNCS */
1840 #ifdef CONFIG_EAP_PROXY
1841 if (cred->pcsc && wpa_s->mnc_len > 0 && wpa_s->imsi[0]) {
1843 mnc_len = wpa_s->mnc_len;
1846 #endif /* CONFIG_EAP_PROXY */
1848 if (cred->imsi == NULL || !cred->imsi[0] ||
1849 (!wpa_s->conf->external_sim &&
1850 (cred->milenage == NULL || !cred->milenage[0])))
1853 sep = os_strchr(cred->imsi, '-');
1855 (sep - cred->imsi != 5 && sep - cred->imsi != 6))
1857 mnc_len = sep - cred->imsi - 3;
1858 os_memcpy(imsi_buf, cred->imsi, 3 + mnc_len);
1860 msin_len = os_strlen(cred->imsi);
1861 if (3 + mnc_len + msin_len >= sizeof(imsi_buf) - 1)
1862 msin_len = sizeof(imsi_buf) - 3 - mnc_len - 1;
1863 os_memcpy(&imsi_buf[3 + mnc_len], sep, msin_len);
1864 imsi_buf[3 + mnc_len + msin_len] = '\0';
1867 #if defined(PCSC_FUNCS) || defined(CONFIG_EAP_PROXY)
1869 #endif /* PCSC_FUNCS || CONFIG_EAP_PROXY */
1870 wpa_printf(MSG_DEBUG, "Interworking: Parsing 3GPP info from "
1871 MACSTR, MAC2STR(bss->bssid));
1872 ret = plmn_id_match(bss->anqp->anqp_3gpp, imsi, mnc_len);
1873 wpa_printf(MSG_DEBUG, "PLMN match %sfound", ret ? "" : "not ");
1875 if (cred_no_required_oi_match(cred, bss))
1878 cred_below_min_backhaul(wpa_s, cred, bss))
1881 cred_over_max_bss_load(wpa_s, cred, bss))
1884 cred_conn_capab_missing(wpa_s, cred, bss))
1886 if (cred_excluded_ssid(cred, bss)) {
1887 if (excluded == NULL)
1889 if (selected == NULL) {
1894 if (selected == NULL || is_excluded ||
1895 cred_prio_cmp(selected, cred) < 0) {
1904 *excluded = is_excluded;
1905 #endif /* INTERWORKING_3GPP */
1910 static struct wpa_cred * interworking_credentials_available_realm(
1911 struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int ignore_bw,
1914 struct wpa_cred *cred, *selected = NULL;
1915 struct nai_realm *realm;
1917 int is_excluded = 0;
1919 if (bss->anqp == NULL || bss->anqp->nai_realm == NULL)
1922 if (wpa_s->conf->cred == NULL)
1925 wpa_printf(MSG_DEBUG, "Interworking: Parsing NAI Realm list from "
1926 MACSTR, MAC2STR(bss->bssid));
1927 realm = nai_realm_parse(bss->anqp->nai_realm, &count);
1928 if (realm == NULL) {
1929 wpa_printf(MSG_DEBUG, "Interworking: Could not parse NAI "
1930 "Realm list from " MACSTR, MAC2STR(bss->bssid));
1934 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
1935 if (cred->realm == NULL)
1938 for (i = 0; i < count; i++) {
1939 if (!nai_realm_match(&realm[i], cred->realm))
1941 if (nai_realm_find_eap(cred, &realm[i])) {
1942 if (cred_no_required_oi_match(cred, bss))
1945 cred_below_min_backhaul(wpa_s, cred, bss))
1948 cred_over_max_bss_load(wpa_s, cred, bss))
1951 cred_conn_capab_missing(wpa_s, cred, bss))
1953 if (cred_excluded_ssid(cred, bss)) {
1954 if (excluded == NULL)
1956 if (selected == NULL) {
1961 if (selected == NULL || is_excluded ||
1962 cred_prio_cmp(selected, cred) < 0)
1973 nai_realm_free(realm, count);
1976 *excluded = is_excluded;
1982 static struct wpa_cred * interworking_credentials_available_helper(
1983 struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int ignore_bw,
1986 struct wpa_cred *cred, *cred2;
1987 int excluded1, excluded2;
1989 if (disallowed_bssid(wpa_s, bss->bssid) ||
1990 disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
1991 wpa_printf(MSG_DEBUG, "Interworking: Ignore disallowed BSS "
1992 MACSTR, MAC2STR(bss->bssid));
1996 cred = interworking_credentials_available_realm(wpa_s, bss, ignore_bw,
1998 cred2 = interworking_credentials_available_3gpp(wpa_s, bss, ignore_bw,
2000 if (cred && cred2 &&
2001 (cred_prio_cmp(cred2, cred) >= 0 || (!excluded2 && excluded1))) {
2003 excluded1 = excluded2;
2007 excluded1 = excluded2;
2010 cred2 = interworking_credentials_available_roaming_consortium(
2011 wpa_s, bss, ignore_bw, &excluded2);
2012 if (cred && cred2 &&
2013 (cred_prio_cmp(cred2, cred) >= 0 || (!excluded2 && excluded1))) {
2015 excluded1 = excluded2;
2019 excluded1 = excluded2;
2023 *excluded = excluded1;
2028 static struct wpa_cred * interworking_credentials_available(
2029 struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int *excluded)
2031 struct wpa_cred *cred;
2035 cred = interworking_credentials_available_helper(wpa_s, bss, 0,
2039 return interworking_credentials_available_helper(wpa_s, bss, 1,
2044 int domain_name_list_contains(struct wpabuf *domain_names,
2045 const char *domain, int exact_match)
2047 const u8 *pos, *end;
2050 len = os_strlen(domain);
2051 pos = wpabuf_head(domain_names);
2052 end = pos + wpabuf_len(domain_names);
2054 while (pos + 1 < end) {
2055 if (pos + 1 + pos[0] > end)
2058 wpa_hexdump_ascii(MSG_DEBUG, "Interworking: AP domain name",
2060 if (pos[0] == len &&
2061 os_strncasecmp(domain, (const char *) (pos + 1), len) == 0)
2063 if (!exact_match && pos[0] > len && pos[pos[0] - len] == '.') {
2064 const char *ap = (const char *) (pos + 1);
2065 int offset = pos[0] - len;
2066 if (os_strncasecmp(domain, ap + offset, len) == 0)
2077 int interworking_home_sp_cred(struct wpa_supplicant *wpa_s,
2078 struct wpa_cred *cred,
2079 struct wpabuf *domain_names)
2083 #ifdef INTERWORKING_3GPP
2084 char nai[100], *realm;
2091 else if (cred->pcsc && wpa_s->scard) {
2092 if (interworking_pcsc_read_imsi(wpa_s) < 0)
2095 mnc_len = wpa_s->mnc_len;
2097 #endif /* PCSC_FUNCS */
2098 #ifdef CONFIG_EAP_PROXY
2099 else if (cred->pcsc && wpa_s->mnc_len > 0 && wpa_s->imsi[0]) {
2101 mnc_len = wpa_s->mnc_len;
2103 #endif /* CONFIG_EAP_PROXY */
2105 imsi && build_root_nai(nai, sizeof(nai), imsi, mnc_len, 0) == 0) {
2106 realm = os_strchr(nai, '@');
2109 wpa_printf(MSG_DEBUG, "Interworking: Search for match "
2110 "with SIM/USIM domain %s", realm);
2112 domain_name_list_contains(domain_names, realm, 1))
2117 #endif /* INTERWORKING_3GPP */
2119 if (domain_names == NULL || cred->domain == NULL)
2122 for (i = 0; i < cred->num_domain; i++) {
2123 wpa_printf(MSG_DEBUG, "Interworking: Search for match with "
2124 "home SP FQDN %s", cred->domain[i]);
2125 if (domain_name_list_contains(domain_names, cred->domain[i], 1))
2133 static int interworking_home_sp(struct wpa_supplicant *wpa_s,
2134 struct wpabuf *domain_names)
2136 struct wpa_cred *cred;
2138 if (domain_names == NULL || wpa_s->conf->cred == NULL)
2141 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
2142 int res = interworking_home_sp_cred(wpa_s, cred, domain_names);
2151 static int interworking_find_network_match(struct wpa_supplicant *wpa_s)
2153 struct wpa_bss *bss;
2154 struct wpa_ssid *ssid;
2156 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
2157 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
2158 if (wpas_network_disabled(wpa_s, ssid) ||
2159 ssid->mode != WPAS_MODE_INFRA)
2161 if (ssid->ssid_len != bss->ssid_len ||
2162 os_memcmp(ssid->ssid, bss->ssid, ssid->ssid_len) !=
2166 * TODO: Consider more accurate matching of security
2167 * configuration similarly to what is done in events.c
2177 static int roaming_partner_match(struct wpa_supplicant *wpa_s,
2178 struct roaming_partner *partner,
2179 struct wpabuf *domain_names)
2181 wpa_printf(MSG_DEBUG, "Interworking: Comparing roaming_partner info fqdn='%s' exact_match=%d priority=%u country='%s'",
2182 partner->fqdn, partner->exact_match, partner->priority,
2184 wpa_hexdump_ascii(MSG_DEBUG, "Interworking: Domain names",
2185 wpabuf_head(domain_names),
2186 wpabuf_len(domain_names));
2187 if (!domain_name_list_contains(domain_names, partner->fqdn,
2188 partner->exact_match))
2190 /* TODO: match Country */
2195 static u8 roaming_prio(struct wpa_supplicant *wpa_s, struct wpa_cred *cred,
2196 struct wpa_bss *bss)
2200 if (bss->anqp == NULL || bss->anqp->domain_name == NULL) {
2201 wpa_printf(MSG_DEBUG, "Interworking: No ANQP domain name info -> use default roaming partner priority 128");
2202 return 128; /* cannot check preference with domain name */
2205 if (interworking_home_sp_cred(wpa_s, cred, bss->anqp->domain_name) > 0)
2207 wpa_printf(MSG_DEBUG, "Interworking: Determined to be home SP -> use maximum preference 0 as roaming partner priority");
2208 return 0; /* max preference for home SP network */
2211 for (i = 0; i < cred->num_roaming_partner; i++) {
2212 if (roaming_partner_match(wpa_s, &cred->roaming_partner[i],
2213 bss->anqp->domain_name)) {
2214 wpa_printf(MSG_DEBUG, "Interworking: Roaming partner preference match - priority %u",
2215 cred->roaming_partner[i].priority);
2216 return cred->roaming_partner[i].priority;
2220 wpa_printf(MSG_DEBUG, "Interworking: No roaming partner preference match - use default roaming partner priority 128");
2225 static struct wpa_bss * pick_best_roaming_partner(struct wpa_supplicant *wpa_s,
2226 struct wpa_bss *selected,
2227 struct wpa_cred *cred)
2229 struct wpa_bss *bss;
2231 struct wpa_cred *cred2;
2234 * Check if any other BSS is operated by a more preferred roaming
2238 best_prio = roaming_prio(wpa_s, cred, selected);
2239 wpa_printf(MSG_DEBUG, "Interworking: roaming_prio=%u for selected BSS "
2240 MACSTR " (cred=%d)", best_prio, MAC2STR(selected->bssid),
2243 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
2244 if (bss == selected)
2246 cred2 = interworking_credentials_available(wpa_s, bss, NULL);
2249 if (!wpa_bss_get_ie(bss, WLAN_EID_RSN))
2251 prio = roaming_prio(wpa_s, cred2, bss);
2252 wpa_printf(MSG_DEBUG, "Interworking: roaming_prio=%u for BSS "
2253 MACSTR " (cred=%d)", prio, MAC2STR(bss->bssid),
2255 if (prio < best_prio) {
2256 int bh1, bh2, load1, load2, conn1, conn2;
2257 bh1 = cred_below_min_backhaul(wpa_s, cred, selected);
2258 load1 = cred_over_max_bss_load(wpa_s, cred, selected);
2259 conn1 = cred_conn_capab_missing(wpa_s, cred, selected);
2260 bh2 = cred_below_min_backhaul(wpa_s, cred2, bss);
2261 load2 = cred_over_max_bss_load(wpa_s, cred2, bss);
2262 conn2 = cred_conn_capab_missing(wpa_s, cred2, bss);
2263 wpa_printf(MSG_DEBUG, "Interworking: old: %d %d %d new: %d %d %d",
2264 bh1, load1, conn1, bh2, load2, conn2);
2265 if (bh1 || load1 || conn1 || !(bh2 || load2 || conn2)) {
2266 wpa_printf(MSG_DEBUG, "Interworking: Better roaming partner " MACSTR " selected", MAC2STR(bss->bssid));
2277 static void interworking_select_network(struct wpa_supplicant *wpa_s)
2279 struct wpa_bss *bss, *selected = NULL, *selected_home = NULL;
2280 struct wpa_bss *selected2 = NULL, *selected2_home = NULL;
2281 unsigned int count = 0;
2284 struct wpa_cred *cred, *selected_cred = NULL;
2285 struct wpa_cred *selected_home_cred = NULL;
2286 struct wpa_cred *selected2_cred = NULL;
2287 struct wpa_cred *selected2_home_cred = NULL;
2289 wpa_s->network_select = 0;
2291 wpa_printf(MSG_DEBUG, "Interworking: Select network (auto_select=%d)",
2292 wpa_s->auto_select);
2293 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
2295 int bh, bss_load, conn_capab;
2296 cred = interworking_credentials_available(wpa_s, bss,
2300 if (!wpa_bss_get_ie(bss, WLAN_EID_RSN)) {
2302 * We currently support only HS 2.0 networks and those
2303 * are required to use WPA2-Enterprise.
2305 wpa_printf(MSG_DEBUG, "Interworking: Credential match "
2306 "with " MACSTR " but network does not use "
2307 "RSN", MAC2STR(bss->bssid));
2312 res = interworking_home_sp(wpa_s, bss->anqp ?
2313 bss->anqp->domain_name : NULL);
2320 bh = cred_below_min_backhaul(wpa_s, cred, bss);
2321 bss_load = cred_over_max_bss_load(wpa_s, cred, bss);
2322 conn_capab = cred_conn_capab_missing(wpa_s, cred, bss);
2323 wpa_msg(wpa_s, MSG_INFO, "%s" MACSTR " type=%s%s%s%s id=%d priority=%d sp_priority=%d",
2324 excluded ? INTERWORKING_BLACKLISTED : INTERWORKING_AP,
2325 MAC2STR(bss->bssid), type,
2326 bh ? " below_min_backhaul=1" : "",
2327 bss_load ? " over_max_bss_load=1" : "",
2328 conn_capab ? " conn_capab_missing=1" : "",
2329 cred->id, cred->priority, cred->sp_priority);
2332 if (wpa_s->auto_select ||
2333 (wpa_s->conf->auto_interworking &&
2334 wpa_s->auto_network_select)) {
2335 if (bh || bss_load || conn_capab) {
2336 if (selected2_cred == NULL ||
2337 cred_prio_cmp(cred, selected2_cred) > 0) {
2338 wpa_printf(MSG_DEBUG, "Interworking: Mark as selected2");
2340 selected2_cred = cred;
2343 (selected2_home_cred == NULL ||
2344 cred_prio_cmp(cred, selected2_home_cred) >
2346 wpa_printf(MSG_DEBUG, "Interworking: Mark as selected2_home");
2347 selected2_home = bss;
2348 selected2_home_cred = cred;
2351 if (selected_cred == NULL ||
2352 cred_prio_cmp(cred, selected_cred) > 0) {
2353 wpa_printf(MSG_DEBUG, "Interworking: Mark as selected");
2355 selected_cred = cred;
2358 (selected_home_cred == NULL ||
2359 cred_prio_cmp(cred, selected_home_cred) >
2361 wpa_printf(MSG_DEBUG, "Interworking: Mark as selected_home");
2362 selected_home = bss;
2363 selected_home_cred = cred;
2369 if (selected_home && selected_home != selected &&
2370 selected_home_cred &&
2371 (selected_cred == NULL ||
2372 cred_prio_cmp(selected_home_cred, selected_cred) >= 0)) {
2373 /* Prefer network operated by the Home SP */
2374 wpa_printf(MSG_DEBUG, "Interworking: Overrided selected with selected_home");
2375 selected = selected_home;
2376 selected_cred = selected_home_cred;
2380 if (selected2_home) {
2381 wpa_printf(MSG_DEBUG, "Interworking: Use home BSS with BW limit mismatch since no other network could be selected");
2382 selected = selected2_home;
2383 selected_cred = selected2_home_cred;
2384 } else if (selected2) {
2385 wpa_printf(MSG_DEBUG, "Interworking: Use visited BSS with BW limit mismatch since no other network could be selected");
2386 selected = selected2;
2387 selected_cred = selected2_cred;
2393 * No matching network was found based on configured
2394 * credentials. Check whether any of the enabled network blocks
2395 * have matching APs.
2397 if (interworking_find_network_match(wpa_s)) {
2398 wpa_printf(MSG_DEBUG, "Interworking: Possible BSS "
2399 "match for enabled network configurations");
2400 if (wpa_s->auto_select)
2401 interworking_reconnect(wpa_s);
2405 if (wpa_s->auto_network_select) {
2406 wpa_printf(MSG_DEBUG, "Interworking: Continue "
2407 "scanning after ANQP fetch");
2408 wpa_supplicant_req_scan(wpa_s, wpa_s->scan_interval,
2413 wpa_msg(wpa_s, MSG_INFO, INTERWORKING_NO_MATCH "No network "
2414 "with matching credentials found");
2418 wpa_printf(MSG_DEBUG, "Interworking: Selected " MACSTR,
2419 MAC2STR(selected->bssid));
2420 selected = pick_best_roaming_partner(wpa_s, selected,
2422 wpa_printf(MSG_DEBUG, "Interworking: Selected " MACSTR
2423 " (after best roaming partner selection)",
2424 MAC2STR(selected->bssid));
2425 wpa_msg(wpa_s, MSG_INFO, INTERWORKING_SELECTED MACSTR,
2426 MAC2STR(selected->bssid));
2427 interworking_connect(wpa_s, selected);
2432 static struct wpa_bss_anqp *
2433 interworking_match_anqp_info(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
2435 struct wpa_bss *other;
2437 if (is_zero_ether_addr(bss->hessid))
2438 return NULL; /* Cannot be in the same homegenous ESS */
2440 dl_list_for_each(other, &wpa_s->bss, struct wpa_bss, list) {
2443 if (other->anqp == NULL)
2445 if (other->anqp->roaming_consortium == NULL &&
2446 other->anqp->nai_realm == NULL &&
2447 other->anqp->anqp_3gpp == NULL &&
2448 other->anqp->domain_name == NULL)
2450 if (!(other->flags & WPA_BSS_ANQP_FETCH_TRIED))
2452 if (os_memcmp(bss->hessid, other->hessid, ETH_ALEN) != 0)
2454 if (bss->ssid_len != other->ssid_len ||
2455 os_memcmp(bss->ssid, other->ssid, bss->ssid_len) != 0)
2458 wpa_printf(MSG_DEBUG, "Interworking: Share ANQP data with "
2459 "already fetched BSSID " MACSTR " and " MACSTR,
2460 MAC2STR(other->bssid), MAC2STR(bss->bssid));
2461 other->anqp->users++;
2469 static void interworking_next_anqp_fetch(struct wpa_supplicant *wpa_s)
2471 struct wpa_bss *bss;
2475 wpa_printf(MSG_DEBUG, "Interworking: next_anqp_fetch - "
2476 "fetch_anqp_in_progress=%d fetch_osu_icon_in_progress=%d",
2477 wpa_s->fetch_anqp_in_progress,
2478 wpa_s->fetch_osu_icon_in_progress);
2480 if (eloop_terminated() || !wpa_s->fetch_anqp_in_progress) {
2481 wpa_printf(MSG_DEBUG, "Interworking: Stop next-ANQP-fetch");
2485 if (wpa_s->fetch_osu_icon_in_progress) {
2486 wpa_printf(MSG_DEBUG, "Interworking: Next icon (in progress)");
2487 hs20_next_osu_icon(wpa_s);
2491 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
2492 if (!(bss->caps & IEEE80211_CAP_ESS))
2494 ie = wpa_bss_get_ie(bss, WLAN_EID_EXT_CAPAB);
2495 if (ie == NULL || ie[1] < 4 || !(ie[5] & 0x80))
2496 continue; /* AP does not support Interworking */
2497 if (disallowed_bssid(wpa_s, bss->bssid) ||
2498 disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len))
2499 continue; /* Disallowed BSS */
2501 if (!(bss->flags & WPA_BSS_ANQP_FETCH_TRIED)) {
2502 if (bss->anqp == NULL) {
2503 bss->anqp = interworking_match_anqp_info(wpa_s,
2506 /* Shared data already fetched */
2509 bss->anqp = wpa_bss_anqp_alloc();
2510 if (bss->anqp == NULL)
2514 bss->flags |= WPA_BSS_ANQP_FETCH_TRIED;
2515 wpa_msg(wpa_s, MSG_INFO, "Starting ANQP fetch for "
2516 MACSTR, MAC2STR(bss->bssid));
2517 interworking_anqp_send_req(wpa_s, bss);
2523 if (wpa_s->fetch_osu_info) {
2524 if (wpa_s->num_prov_found == 0 &&
2525 wpa_s->num_osu_scans < 3) {
2526 wpa_printf(MSG_DEBUG, "HS 2.0: No OSU providers seen - try to scan again");
2527 hs20_start_osu_scan(wpa_s);
2530 wpa_printf(MSG_DEBUG, "Interworking: Next icon");
2531 hs20_osu_icon_fetch(wpa_s);
2534 wpa_msg(wpa_s, MSG_INFO, "ANQP fetch completed");
2535 wpa_s->fetch_anqp_in_progress = 0;
2536 if (wpa_s->network_select)
2537 interworking_select_network(wpa_s);
2542 void interworking_start_fetch_anqp(struct wpa_supplicant *wpa_s)
2544 struct wpa_bss *bss;
2546 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list)
2547 bss->flags &= ~WPA_BSS_ANQP_FETCH_TRIED;
2549 wpa_s->fetch_anqp_in_progress = 1;
2550 interworking_next_anqp_fetch(wpa_s);
2554 int interworking_fetch_anqp(struct wpa_supplicant *wpa_s)
2556 if (wpa_s->fetch_anqp_in_progress || wpa_s->network_select)
2559 wpa_s->network_select = 0;
2560 wpa_s->fetch_all_anqp = 1;
2561 wpa_s->fetch_osu_info = 0;
2563 interworking_start_fetch_anqp(wpa_s);
2569 void interworking_stop_fetch_anqp(struct wpa_supplicant *wpa_s)
2571 if (!wpa_s->fetch_anqp_in_progress)
2574 wpa_s->fetch_anqp_in_progress = 0;
2578 int anqp_send_req(struct wpa_supplicant *wpa_s, const u8 *dst,
2579 u16 info_ids[], size_t num_ids, u32 subtypes)
2582 struct wpabuf *hs20_buf = NULL;
2585 struct wpa_bss *bss;
2588 freq = wpa_s->assoc_freq;
2589 bss = wpa_bss_get_bssid(wpa_s, dst);
2591 wpa_bss_anqp_unshare_alloc(bss);
2597 wpa_printf(MSG_DEBUG, "ANQP: Query Request to " MACSTR " for %u id(s)",
2598 MAC2STR(dst), (unsigned int) num_ids);
2601 if (subtypes != 0) {
2602 hs20_buf = wpabuf_alloc(100);
2603 if (hs20_buf == NULL)
2605 hs20_put_anqp_req(subtypes, NULL, 0, hs20_buf);
2607 #endif /* CONFIG_HS20 */
2609 buf = anqp_build_req(info_ids, num_ids, hs20_buf);
2610 wpabuf_free(hs20_buf);
2614 res = gas_query_req(wpa_s->gas, dst, freq, buf, anqp_resp_cb, wpa_s);
2616 wpa_printf(MSG_DEBUG, "ANQP: Failed to send Query Request");
2620 wpa_printf(MSG_DEBUG, "ANQP: Query started with dialog token "
2627 static void interworking_parse_rx_anqp_resp(struct wpa_supplicant *wpa_s,
2628 struct wpa_bss *bss, const u8 *sa,
2630 const u8 *data, size_t slen)
2632 const u8 *pos = data;
2633 struct wpa_bss_anqp *anqp = NULL;
2636 #endif /* CONFIG_HS20 */
2642 case ANQP_CAPABILITY_LIST:
2643 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
2644 " ANQP Capability list", MAC2STR(sa));
2646 case ANQP_VENUE_NAME:
2647 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
2648 " Venue Name", MAC2STR(sa));
2649 wpa_hexdump_ascii(MSG_DEBUG, "ANQP: Venue Name", pos, slen);
2651 wpabuf_free(anqp->venue_name);
2652 anqp->venue_name = wpabuf_alloc_copy(pos, slen);
2655 case ANQP_NETWORK_AUTH_TYPE:
2656 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
2657 " Network Authentication Type information",
2659 wpa_hexdump_ascii(MSG_DEBUG, "ANQP: Network Authentication "
2662 wpabuf_free(anqp->network_auth_type);
2663 anqp->network_auth_type = wpabuf_alloc_copy(pos, slen);
2666 case ANQP_ROAMING_CONSORTIUM:
2667 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
2668 " Roaming Consortium list", MAC2STR(sa));
2669 wpa_hexdump_ascii(MSG_DEBUG, "ANQP: Roaming Consortium",
2672 wpabuf_free(anqp->roaming_consortium);
2673 anqp->roaming_consortium = wpabuf_alloc_copy(pos, slen);
2676 case ANQP_IP_ADDR_TYPE_AVAILABILITY:
2677 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
2678 " IP Address Type Availability information",
2680 wpa_hexdump(MSG_MSGDUMP, "ANQP: IP Address Availability",
2683 wpabuf_free(anqp->ip_addr_type_availability);
2684 anqp->ip_addr_type_availability =
2685 wpabuf_alloc_copy(pos, slen);
2688 case ANQP_NAI_REALM:
2689 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
2690 " NAI Realm list", MAC2STR(sa));
2691 wpa_hexdump_ascii(MSG_DEBUG, "ANQP: NAI Realm", pos, slen);
2693 wpabuf_free(anqp->nai_realm);
2694 anqp->nai_realm = wpabuf_alloc_copy(pos, slen);
2697 case ANQP_3GPP_CELLULAR_NETWORK:
2698 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
2699 " 3GPP Cellular Network information", MAC2STR(sa));
2700 wpa_hexdump_ascii(MSG_DEBUG, "ANQP: 3GPP Cellular Network",
2703 wpabuf_free(anqp->anqp_3gpp);
2704 anqp->anqp_3gpp = wpabuf_alloc_copy(pos, slen);
2707 case ANQP_DOMAIN_NAME:
2708 wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
2709 " Domain Name list", MAC2STR(sa));
2710 wpa_hexdump_ascii(MSG_MSGDUMP, "ANQP: Domain Name", pos, slen);
2712 wpabuf_free(anqp->domain_name);
2713 anqp->domain_name = wpabuf_alloc_copy(pos, slen);
2716 case ANQP_VENDOR_SPECIFIC:
2720 switch (WPA_GET_BE24(pos)) {
2732 case HS20_ANQP_OUI_TYPE:
2733 hs20_parse_rx_hs20_anqp_resp(wpa_s, sa, pos,
2737 wpa_printf(MSG_DEBUG, "HS20: Unsupported ANQP "
2738 "vendor type %u", type);
2742 #endif /* CONFIG_HS20 */
2744 wpa_printf(MSG_DEBUG, "Interworking: Unsupported "
2745 "vendor-specific ANQP OUI %06x",
2751 wpa_printf(MSG_DEBUG, "Interworking: Unsupported ANQP Info ID "
2758 void anqp_resp_cb(void *ctx, const u8 *dst, u8 dialog_token,
2759 enum gas_query_result result,
2760 const struct wpabuf *adv_proto,
2761 const struct wpabuf *resp, u16 status_code)
2763 struct wpa_supplicant *wpa_s = ctx;
2768 struct wpa_bss *bss = NULL, *tmp;
2770 wpa_printf(MSG_DEBUG, "Interworking: anqp_resp_cb dst=" MACSTR
2771 " dialog_token=%u result=%d status_code=%u",
2772 MAC2STR(dst), dialog_token, result, status_code);
2773 if (result != GAS_QUERY_SUCCESS) {
2774 if (wpa_s->fetch_osu_icon_in_progress)
2775 hs20_icon_fetch_failed(wpa_s);
2779 pos = wpabuf_head(adv_proto);
2780 if (wpabuf_len(adv_proto) < 4 || pos[0] != WLAN_EID_ADV_PROTO ||
2781 pos[1] < 2 || pos[3] != ACCESS_NETWORK_QUERY_PROTOCOL) {
2782 wpa_printf(MSG_DEBUG, "ANQP: Unexpected Advertisement "
2783 "Protocol in response");
2784 if (wpa_s->fetch_osu_icon_in_progress)
2785 hs20_icon_fetch_failed(wpa_s);
2790 * If possible, select the BSS entry based on which BSS entry was used
2791 * for the request. This can help in cases where multiple BSS entries
2792 * may exist for the same AP.
2794 dl_list_for_each_reverse(tmp, &wpa_s->bss, struct wpa_bss, list) {
2795 if (tmp == wpa_s->interworking_gas_bss &&
2796 os_memcmp(tmp->bssid, dst, ETH_ALEN) == 0) {
2802 bss = wpa_bss_get_bssid(wpa_s, dst);
2804 pos = wpabuf_head(resp);
2805 end = pos + wpabuf_len(resp);
2808 if (pos + 4 > end) {
2809 wpa_printf(MSG_DEBUG, "ANQP: Invalid element");
2812 info_id = WPA_GET_LE16(pos);
2814 slen = WPA_GET_LE16(pos);
2816 if (pos + slen > end) {
2817 wpa_printf(MSG_DEBUG, "ANQP: Invalid element length "
2818 "for Info ID %u", info_id);
2821 interworking_parse_rx_anqp_resp(wpa_s, bss, dst, info_id, pos,
2826 hs20_notify_parse_done(wpa_s);
2830 static void interworking_scan_res_handler(struct wpa_supplicant *wpa_s,
2831 struct wpa_scan_results *scan_res)
2833 wpa_printf(MSG_DEBUG, "Interworking: Scan results available - start "
2835 interworking_start_fetch_anqp(wpa_s);
2839 int interworking_select(struct wpa_supplicant *wpa_s, int auto_select,
2842 interworking_stop_fetch_anqp(wpa_s);
2843 wpa_s->network_select = 1;
2844 wpa_s->auto_network_select = 0;
2845 wpa_s->auto_select = !!auto_select;
2846 wpa_s->fetch_all_anqp = 0;
2847 wpa_s->fetch_osu_info = 0;
2848 wpa_printf(MSG_DEBUG, "Interworking: Start scan for network "
2850 wpa_s->scan_res_handler = interworking_scan_res_handler;
2851 wpa_s->normal_scans = 0;
2852 wpa_s->scan_req = MANUAL_SCAN_REQ;
2853 os_free(wpa_s->manual_scan_freqs);
2854 wpa_s->manual_scan_freqs = freqs;
2855 wpa_s->after_wps = 0;
2856 wpa_s->known_wps_freq = 0;
2857 wpa_supplicant_req_scan(wpa_s, 0, 0);
2863 static void gas_resp_cb(void *ctx, const u8 *addr, u8 dialog_token,
2864 enum gas_query_result result,
2865 const struct wpabuf *adv_proto,
2866 const struct wpabuf *resp, u16 status_code)
2868 struct wpa_supplicant *wpa_s = ctx;
2871 wpa_msg(wpa_s, MSG_INFO, GAS_RESPONSE_INFO "addr=" MACSTR
2872 " dialog_token=%d status_code=%d resp_len=%d",
2873 MAC2STR(addr), dialog_token, status_code,
2874 resp ? (int) wpabuf_len(resp) : -1);
2878 n = wpabuf_dup(resp);
2881 wpabuf_free(wpa_s->prev_gas_resp);
2882 wpa_s->prev_gas_resp = wpa_s->last_gas_resp;
2883 os_memcpy(wpa_s->prev_gas_addr, wpa_s->last_gas_addr, ETH_ALEN);
2884 wpa_s->prev_gas_dialog_token = wpa_s->last_gas_dialog_token;
2885 wpa_s->last_gas_resp = n;
2886 os_memcpy(wpa_s->last_gas_addr, addr, ETH_ALEN);
2887 wpa_s->last_gas_dialog_token = dialog_token;
2891 int gas_send_request(struct wpa_supplicant *wpa_s, const u8 *dst,
2892 const struct wpabuf *adv_proto,
2893 const struct wpabuf *query)
2898 struct wpa_bss *bss;
2901 u8 query_resp_len_limit = 0, pame_bi = 0;
2903 freq = wpa_s->assoc_freq;
2904 bss = wpa_bss_get_bssid(wpa_s, dst);
2910 wpa_printf(MSG_DEBUG, "GAS request to " MACSTR " (freq %d MHz)",
2911 MAC2STR(dst), freq);
2912 wpa_hexdump_buf(MSG_DEBUG, "Advertisement Protocol ID", adv_proto);
2913 wpa_hexdump_buf(MSG_DEBUG, "GAS Query", query);
2915 len = 3 + wpabuf_len(adv_proto) + 2;
2917 len += wpabuf_len(query);
2918 buf = gas_build_initial_req(0, len);
2922 /* Advertisement Protocol IE */
2923 wpabuf_put_u8(buf, WLAN_EID_ADV_PROTO);
2924 wpabuf_put_u8(buf, 1 + wpabuf_len(adv_proto)); /* Length */
2925 wpabuf_put_u8(buf, (query_resp_len_limit & 0x7f) |
2926 (pame_bi ? 0x80 : 0));
2927 wpabuf_put_buf(buf, adv_proto);
2931 wpabuf_put_le16(buf, wpabuf_len(query));
2932 wpabuf_put_buf(buf, query);
2934 wpabuf_put_le16(buf, 0);
2936 res = gas_query_req(wpa_s->gas, dst, freq, buf, gas_resp_cb, wpa_s);
2938 wpa_printf(MSG_DEBUG, "GAS: Failed to send Query Request");
2942 wpa_printf(MSG_DEBUG, "GAS: Query started with dialog token "