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
)
78 if (wpa_s
->wpa_state
>= WPA_AUTHENTICATING
) {
79 wpa_supplicant_cancel_sched_scan(wpa_s
);
80 wpa_s
->own_disconnect_req
= 1;
81 wpa_supplicant_deauthenticate(wpa_s
,
82 WLAN_REASON_DEAUTH_LEAVING
);
84 wpa_s
->disconnected
= 0;
85 wpa_s
->reassociate
= 1;
86 tried
= wpa_s
->interworking_fast_assoc_tried
;
87 wpa_s
->interworking_fast_assoc_tried
= 1;
89 if (!tried
&& wpa_supplicant_fast_associate(wpa_s
) >= 0)
92 wpa_s
->interworking_fast_assoc_tried
= 0;
93 wpa_supplicant_req_scan(wpa_s
, 0, 0);
97 static struct wpabuf
* anqp_build_req(u16 info_ids
[], size_t num_ids
,
104 buf
= gas_anqp_build_initial_req(0, 4 + num_ids
* 2 +
105 (extra
? wpabuf_len(extra
) : 0));
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
);
114 wpabuf_put_buf(buf
, extra
);
116 gas_anqp_set_len(buf
);
122 static void interworking_anqp_resp_cb(void *ctx
, const u8
*dst
,
124 enum gas_query_result result
,
125 const struct wpabuf
*adv_proto
,
126 const struct wpabuf
*resp
,
129 struct wpa_supplicant
*wpa_s
= ctx
;
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
);
134 anqp_resp_cb(wpa_s
, dst
, dialog_token
, result
, adv_proto
, resp
,
136 interworking_next_anqp_fetch(wpa_s
);
140 static int cred_with_roaming_consortium(struct wpa_supplicant
*wpa_s
)
142 struct wpa_cred
*cred
;
144 for (cred
= wpa_s
->conf
->cred
; cred
; cred
= cred
->next
) {
145 if (cred
->roaming_consortium_len
)
147 if (cred
->required_roaming_consortium_len
)
154 static int cred_with_3gpp(struct wpa_supplicant
*wpa_s
)
156 struct wpa_cred
*cred
;
158 for (cred
= wpa_s
->conf
->cred
; cred
; cred
= cred
->next
) {
159 if (cred
->pcsc
|| cred
->imsi
)
166 static int cred_with_nai_realm(struct wpa_supplicant
*wpa_s
)
168 struct wpa_cred
*cred
;
170 for (cred
= wpa_s
->conf
->cred
; cred
; cred
= cred
->next
) {
171 if (cred
->pcsc
|| cred
->imsi
)
173 if (!cred
->eap_method
)
175 if (cred
->realm
&& cred
->roaming_consortium_len
== 0)
182 static int cred_with_domain(struct wpa_supplicant
*wpa_s
)
184 struct wpa_cred
*cred
;
186 for (cred
= wpa_s
->conf
->cred
; cred
; cred
= cred
->next
) {
187 if (cred
->domain
|| cred
->pcsc
|| cred
->imsi
||
188 cred
->roaming_partner
)
197 static int cred_with_min_backhaul(struct wpa_supplicant
*wpa_s
)
199 struct wpa_cred
*cred
;
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
)
212 static int cred_with_conn_capab(struct wpa_supplicant
*wpa_s
)
214 struct wpa_cred
*cred
;
216 for (cred
= wpa_s
->conf
->cred
; cred
; cred
= cred
->next
) {
217 if (cred
->num_req_conn_capab
)
223 #endif /* CONFIG_HS20 */
226 static int additional_roaming_consortiums(struct wpa_bss
*bss
)
229 ie
= wpa_bss_get_ie(bss
, WLAN_EID_ROAMING_CONSORTIUM
);
230 if (ie
== NULL
|| ie
[1] == 0)
232 return ie
[2]; /* Number of ANQP OIs */
236 static void interworking_continue_anqp(void *eloop_ctx
, void *sock_ctx
)
238 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
239 interworking_next_anqp_fetch(wpa_s
);
243 static int interworking_anqp_send_req(struct wpa_supplicant
*wpa_s
,
250 size_t num_info_ids
= 0;
251 struct wpabuf
*extra
= NULL
;
252 int all
= wpa_s
->fetch_all_anqp
;
254 wpa_msg(wpa_s
, MSG_DEBUG
, "Interworking: ANQP Query Request to " MACSTR
,
255 MAC2STR(bss
->bssid
));
256 wpa_s
->interworking_gas_bss
= bss
;
258 info_ids
[num_info_ids
++] = ANQP_CAPABILITY_LIST
;
260 info_ids
[num_info_ids
++] = ANQP_VENUE_NAME
;
261 info_ids
[num_info_ids
++] = ANQP_NETWORK_AUTH_TYPE
;
263 if (all
|| (cred_with_roaming_consortium(wpa_s
) &&
264 additional_roaming_consortiums(bss
)))
265 info_ids
[num_info_ids
++] = ANQP_ROAMING_CONSORTIUM
;
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
;
270 if (all
|| cred_with_3gpp(wpa_s
)) {
271 info_ids
[num_info_ids
++] = ANQP_3GPP_CELLULAR_NETWORK
;
272 wpa_supplicant_scard_init(wpa_s
, NULL
);
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);
280 if (wpa_bss_get_vendor_ie(bss
, HS20_IE_VENDOR_TYPE
)) {
283 extra
= wpabuf_alloc(100);
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
);
295 HS20_STYPE_OPERATOR_FRIENDLY_NAME
);
296 if (all
|| cred_with_min_backhaul(wpa_s
))
297 wpabuf_put_u8(extra
, HS20_STYPE_WAN_METRICS
);
298 if (all
|| cred_with_conn_capab(wpa_s
))
299 wpabuf_put_u8(extra
, HS20_STYPE_CONNECTION_CAPABILITY
);
301 wpabuf_put_u8(extra
, HS20_STYPE_OPERATING_CLASS
);
303 wpabuf_put_u8(extra
, HS20_STYPE_OSU_PROVIDERS_LIST
);
304 gas_anqp_set_element_len(extra
, len_pos
);
306 #endif /* CONFIG_HS20 */
308 buf
= anqp_build_req(info_ids
, num_info_ids
, extra
);
313 res
= gas_query_req(wpa_s
->gas
, bss
->bssid
, bss
->freq
, buf
,
314 interworking_anqp_resp_cb
, wpa_s
);
316 wpa_msg(wpa_s
, MSG_DEBUG
, "ANQP: Failed to send Query Request");
319 eloop_register_timeout(0, 0, interworking_continue_anqp
, wpa_s
,
322 wpa_msg(wpa_s
, MSG_DEBUG
,
323 "ANQP: Query started with dialog token %u", res
);
329 struct nai_realm_eap
{
332 enum nai_realm_eap_auth_inner_non_eap inner_non_eap
;
334 u8 tunneled_cred_type
;
341 struct nai_realm_eap
*eap
;
345 static void nai_realm_free(struct nai_realm
*realms
, u16 count
)
351 for (i
= 0; i
< count
; i
++) {
352 os_free(realms
[i
].eap
);
353 os_free(realms
[i
].realm
);
359 static const u8
* nai_realm_parse_eap(struct nai_realm_eap
*e
, const u8
*pos
,
362 u8 elen
, auth_count
, a
;
366 wpa_printf(MSG_DEBUG
, "No room for EAP Method fixed fields");
371 if (pos
+ elen
> end
|| elen
< 2) {
372 wpa_printf(MSG_DEBUG
, "No room for EAP Method subfield");
378 wpa_printf(MSG_DEBUG
, "EAP Method: len=%u method=%u auth_count=%u",
379 elen
, e
->method
, auth_count
);
381 for (a
= 0; a
< auth_count
; a
++) {
384 if (pos
+ 2 > end
|| pos
+ 2 + pos
[1] > end
) {
385 wpa_printf(MSG_DEBUG
, "No room for Authentication "
386 "Parameter subfield");
394 case NAI_REALM_EAP_AUTH_NON_EAP_INNER_AUTH
:
397 e
->inner_non_eap
= *pos
;
398 if (e
->method
!= EAP_TYPE_TTLS
)
401 case NAI_REALM_INNER_NON_EAP_PAP
:
402 wpa_printf(MSG_DEBUG
, "EAP-TTLS/PAP");
404 case NAI_REALM_INNER_NON_EAP_CHAP
:
405 wpa_printf(MSG_DEBUG
, "EAP-TTLS/CHAP");
407 case NAI_REALM_INNER_NON_EAP_MSCHAP
:
408 wpa_printf(MSG_DEBUG
, "EAP-TTLS/MSCHAP");
410 case NAI_REALM_INNER_NON_EAP_MSCHAPV2
:
411 wpa_printf(MSG_DEBUG
, "EAP-TTLS/MSCHAPV2");
415 case NAI_REALM_EAP_AUTH_INNER_AUTH_EAP_METHOD
:
418 e
->inner_method
= *pos
;
419 wpa_printf(MSG_DEBUG
, "Inner EAP method: %u",
422 case NAI_REALM_EAP_AUTH_CRED_TYPE
:
426 wpa_printf(MSG_DEBUG
, "Credential Type: %u",
429 case NAI_REALM_EAP_AUTH_TUNNELED_CRED_TYPE
:
432 e
->tunneled_cred_type
= *pos
;
433 wpa_printf(MSG_DEBUG
, "Tunneled EAP Method Credential "
434 "Type: %u", e
->tunneled_cred_type
);
437 wpa_printf(MSG_DEBUG
, "Unsupported Authentication "
438 "Parameter: id=%u len=%u", id
, len
);
439 wpa_hexdump(MSG_DEBUG
, "Authentication Parameter "
451 static const u8
* nai_realm_parse_realm(struct nai_realm
*r
, const u8
*pos
,
459 wpa_printf(MSG_DEBUG
, "No room for NAI Realm Data "
464 len
= WPA_GET_LE16(pos
); /* NAI Realm Data field Length */
466 if (pos
+ len
> end
|| len
< 3) {
467 wpa_printf(MSG_DEBUG
, "No room for NAI Realm Data "
469 len
, (unsigned int) (end
- pos
));
474 r
->encoding
= *pos
++;
476 if (pos
+ realm_len
> f_end
) {
477 wpa_printf(MSG_DEBUG
, "No room for NAI Realm "
479 realm_len
, (unsigned int) (f_end
- pos
));
482 wpa_hexdump_ascii(MSG_DEBUG
, "NAI Realm", pos
, realm_len
);
483 r
->realm
= dup_binstr(pos
, realm_len
);
484 if (r
->realm
== NULL
)
488 if (pos
+ 1 > f_end
) {
489 wpa_printf(MSG_DEBUG
, "No room for EAP Method Count");
492 r
->eap_count
= *pos
++;
493 wpa_printf(MSG_DEBUG
, "EAP Count: %u", r
->eap_count
);
494 if (pos
+ r
->eap_count
* 3 > f_end
) {
495 wpa_printf(MSG_DEBUG
, "No room for EAP Methods");
498 r
->eap
= os_calloc(r
->eap_count
, sizeof(struct nai_realm_eap
));
502 for (e
= 0; e
< r
->eap_count
; e
++) {
503 pos
= nai_realm_parse_eap(&r
->eap
[e
], pos
, f_end
);
512 static struct nai_realm
* nai_realm_parse(struct wpabuf
*anqp
, u16
*count
)
514 struct nai_realm
*realm
;
521 left
= wpabuf_len(anqp
);
525 pos
= wpabuf_head_u8(anqp
);
527 num
= WPA_GET_LE16(pos
);
528 wpa_printf(MSG_DEBUG
, "NAI Realm Count: %u", num
);
532 if (num
> left
/ 5) {
533 wpa_printf(MSG_DEBUG
, "Invalid NAI Realm Count %u - not "
534 "enough data (%u octets) for that many realms",
535 num
, (unsigned int) left
);
539 realm
= os_calloc(num
, sizeof(struct nai_realm
));
543 for (i
= 0; i
< num
; i
++) {
544 pos
= nai_realm_parse_realm(&realm
[i
], pos
, end
);
546 nai_realm_free(realm
, num
);
556 static int nai_realm_match(struct nai_realm
*realm
, const char *home_realm
)
558 char *tmp
, *pos
, *end
;
561 if (realm
->realm
== NULL
|| home_realm
== NULL
)
564 if (os_strchr(realm
->realm
, ';') == NULL
)
565 return os_strcasecmp(realm
->realm
, home_realm
) == 0;
567 tmp
= os_strdup(realm
->realm
);
573 end
= os_strchr(pos
, ';');
576 if (os_strcasecmp(pos
, home_realm
) == 0) {
591 static int nai_realm_cred_username(struct wpa_supplicant
*wpa_s
,
592 struct nai_realm_eap
*eap
)
594 if (eap_get_name(EAP_VENDOR_IETF
, eap
->method
) == NULL
) {
595 wpa_msg(wpa_s
, MSG_DEBUG
,
596 "nai-realm-cred-username: EAP method not supported: %d",
598 return 0; /* method not supported */
601 if (eap
->method
!= EAP_TYPE_TTLS
&& eap
->method
!= EAP_TYPE_PEAP
&&
602 eap
->method
!= EAP_TYPE_FAST
) {
603 /* Only tunneled methods with username/password supported */
604 wpa_msg(wpa_s
, MSG_DEBUG
,
605 "nai-realm-cred-username: Method: %d is not TTLS, PEAP, or FAST",
610 if (eap
->method
== EAP_TYPE_PEAP
|| eap
->method
== EAP_TYPE_FAST
) {
611 if (eap
->inner_method
&&
612 eap_get_name(EAP_VENDOR_IETF
, eap
->inner_method
) == NULL
) {
613 wpa_msg(wpa_s
, MSG_DEBUG
,
614 "nai-realm-cred-username: PEAP/FAST: Inner method not supported: %d",
618 if (!eap
->inner_method
&&
619 eap_get_name(EAP_VENDOR_IETF
, EAP_TYPE_MSCHAPV2
) == NULL
) {
620 wpa_msg(wpa_s
, MSG_DEBUG
,
621 "nai-realm-cred-username: MSCHAPv2 not supported");
626 if (eap
->method
== EAP_TYPE_TTLS
) {
627 if (eap
->inner_method
== 0 && eap
->inner_non_eap
== 0)
628 return 1; /* Assume TTLS/MSCHAPv2 is used */
629 if (eap
->inner_method
&&
630 eap_get_name(EAP_VENDOR_IETF
, eap
->inner_method
) == NULL
) {
631 wpa_msg(wpa_s
, MSG_DEBUG
,
632 "nai-realm-cred-username: TTLS, but inner not supported: %d",
636 if (eap
->inner_non_eap
&&
637 eap
->inner_non_eap
!= NAI_REALM_INNER_NON_EAP_PAP
&&
638 eap
->inner_non_eap
!= NAI_REALM_INNER_NON_EAP_CHAP
&&
639 eap
->inner_non_eap
!= NAI_REALM_INNER_NON_EAP_MSCHAP
&&
640 eap
->inner_non_eap
!= NAI_REALM_INNER_NON_EAP_MSCHAPV2
) {
641 wpa_msg(wpa_s
, MSG_DEBUG
,
642 "nai-realm-cred-username: TTLS, inner-non-eap not supported: %d",
648 if (eap
->inner_method
&&
649 eap
->inner_method
!= EAP_TYPE_GTC
&&
650 eap
->inner_method
!= EAP_TYPE_MSCHAPV2
) {
651 wpa_msg(wpa_s
, MSG_DEBUG
,
652 "nai-realm-cred-username: inner-method not GTC or MSCHAPv2: %d",
661 static int nai_realm_cred_cert(struct wpa_supplicant
*wpa_s
,
662 struct nai_realm_eap
*eap
)
664 if (eap_get_name(EAP_VENDOR_IETF
, eap
->method
) == NULL
) {
665 wpa_msg(wpa_s
, MSG_DEBUG
,
666 "nai-realm-cred-cert: Method not supported: %d",
668 return 0; /* method not supported */
671 if (eap
->method
!= EAP_TYPE_TLS
) {
672 /* Only EAP-TLS supported for credential authentication */
673 wpa_msg(wpa_s
, MSG_DEBUG
,
674 "nai-realm-cred-cert: Method not TLS: %d",
683 static struct nai_realm_eap
* nai_realm_find_eap(struct wpa_supplicant
*wpa_s
,
684 struct wpa_cred
*cred
,
685 struct nai_realm
*realm
)
689 if (cred
->username
== NULL
||
690 cred
->username
[0] == '\0' ||
691 ((cred
->password
== NULL
||
692 cred
->password
[0] == '\0') &&
693 (cred
->private_key
== NULL
||
694 cred
->private_key
[0] == '\0'))) {
695 wpa_msg(wpa_s
, MSG_DEBUG
,
696 "nai-realm-find-eap: incomplete cred info: username: %s password: %s private_key: %s",
697 cred
->username
? cred
->username
: "NULL",
698 cred
->password
? cred
->password
: "NULL",
699 cred
->private_key
? cred
->private_key
: "NULL");
703 for (e
= 0; e
< realm
->eap_count
; e
++) {
704 struct nai_realm_eap
*eap
= &realm
->eap
[e
];
705 if (cred
->password
&& cred
->password
[0] &&
706 nai_realm_cred_username(wpa_s
, eap
))
708 if (cred
->private_key
&& cred
->private_key
[0] &&
709 nai_realm_cred_cert(wpa_s
, eap
))
717 #ifdef INTERWORKING_3GPP
719 static int plmn_id_match(struct wpabuf
*anqp
, const char *imsi
, int mnc_len
)
721 u8 plmn
[3], plmn2
[3];
726 * See Annex A of 3GPP TS 24.234 v8.1.0 for description. The network
727 * operator is allowed to include only two digits of the MNC, so allow
728 * matches based on both two and three digit MNC assumptions. Since some
729 * SIM/USIM cards may not expose MNC length conveniently, we may be
730 * provided the default MNC length 3 here and as such, checking with MNC
731 * length 2 is justifiable even though 3GPP TS 24.234 does not mention
732 * that case. Anyway, MCC/MNC pair where both 2 and 3 digit MNC is used
733 * with otherwise matching values would not be good idea in general, so
734 * this should not result in selecting incorrect networks.
736 /* Match with 3 digit MNC */
737 plmn
[0] = (imsi
[0] - '0') | ((imsi
[1] - '0') << 4);
738 plmn
[1] = (imsi
[2] - '0') | ((imsi
[5] - '0') << 4);
739 plmn
[2] = (imsi
[3] - '0') | ((imsi
[4] - '0') << 4);
740 /* Match with 2 digit MNC */
741 plmn2
[0] = (imsi
[0] - '0') | ((imsi
[1] - '0') << 4);
742 plmn2
[1] = (imsi
[2] - '0') | 0xf0;
743 plmn2
[2] = (imsi
[3] - '0') | ((imsi
[4] - '0') << 4);
747 pos
= wpabuf_head_u8(anqp
);
748 end
= pos
+ wpabuf_len(anqp
);
752 wpa_printf(MSG_DEBUG
, "Unsupported GUD version 0x%x", *pos
);
757 if (pos
+ udhl
> end
) {
758 wpa_printf(MSG_DEBUG
, "Invalid UDHL");
763 wpa_printf(MSG_DEBUG
, "Interworking: Matching against MCC/MNC alternatives: %02x:%02x:%02x or %02x:%02x:%02x (IMSI %s, MNC length %d)",
764 plmn
[0], plmn
[1], plmn
[2], plmn2
[0], plmn2
[1], plmn2
[2],
767 while (pos
+ 2 <= end
) {
776 if (iei
== 0 && len
> 0) {
779 wpa_hexdump(MSG_DEBUG
, "Interworking: PLMN List information element",
782 for (i
= 0; i
< num
; i
++) {
785 if (os_memcmp(pos
, plmn
, 3) == 0 ||
786 os_memcmp(pos
, plmn2
, 3) == 0)
787 return 1; /* Found matching PLMN */
791 wpa_hexdump(MSG_DEBUG
, "Interworking: Unrecognized 3GPP information element",
802 static int build_root_nai(char *nai
, size_t nai_len
, const char *imsi
,
803 size_t mnc_len
, char prefix
)
805 const char *sep
, *msin
;
807 size_t msin_len
, plmn_len
;
810 * TS 23.003, Clause 14 (3GPP to WLAN Interworking)
812 * <aka:0|sim:1><IMSI>@wlan.mnc<MNC>.mcc<MCC>.3gppnetwork.org
813 * <MNC> is zero-padded to three digits in case two-digit MNC is used
816 if (imsi
== NULL
|| os_strlen(imsi
) > 16) {
817 wpa_printf(MSG_DEBUG
, "No valid IMSI available");
820 sep
= os_strchr(imsi
, '-');
822 plmn_len
= sep
- imsi
;
824 } else if (mnc_len
&& os_strlen(imsi
) >= 3 + mnc_len
) {
825 plmn_len
= 3 + mnc_len
;
826 msin
= imsi
+ plmn_len
;
829 if (plmn_len
!= 5 && plmn_len
!= 6)
831 msin_len
= os_strlen(msin
);
837 os_memcpy(pos
, imsi
, plmn_len
);
839 os_memcpy(pos
, msin
, msin_len
);
841 pos
+= os_snprintf(pos
, end
- pos
, "@wlan.mnc");
851 os_snprintf(pos
, end
- pos
, ".mcc%c%c%c.3gppnetwork.org",
852 imsi
[0], imsi
[1], imsi
[2]);
858 static int set_root_nai(struct wpa_ssid
*ssid
, const char *imsi
, char prefix
)
861 if (build_root_nai(nai
, sizeof(nai
), imsi
, 0, prefix
) < 0)
863 return wpa_config_set_quoted(ssid
, "identity", nai
);
866 #endif /* INTERWORKING_3GPP */
869 static int already_connected(struct wpa_supplicant
*wpa_s
,
870 struct wpa_cred
*cred
, struct wpa_bss
*bss
)
872 struct wpa_ssid
*ssid
, *sel_ssid
;
873 struct wpa_bss
*selected
;
875 if (wpa_s
->wpa_state
< WPA_ASSOCIATED
|| wpa_s
->current_ssid
== NULL
)
878 ssid
= wpa_s
->current_ssid
;
879 if (ssid
->parent_cred
!= cred
)
882 if (ssid
->ssid_len
!= bss
->ssid_len
||
883 os_memcmp(ssid
->ssid
, bss
->ssid
, bss
->ssid_len
) != 0)
887 selected
= wpa_supplicant_pick_network(wpa_s
, &sel_ssid
);
888 if (selected
&& sel_ssid
&& sel_ssid
->priority
> ssid
->priority
)
889 return 0; /* higher priority network in scan results */
895 static void remove_duplicate_network(struct wpa_supplicant
*wpa_s
,
896 struct wpa_cred
*cred
,
899 struct wpa_ssid
*ssid
;
901 for (ssid
= wpa_s
->conf
->ssid
; ssid
; ssid
= ssid
->next
) {
902 if (ssid
->parent_cred
!= cred
)
904 if (ssid
->ssid_len
!= bss
->ssid_len
||
905 os_memcmp(ssid
->ssid
, bss
->ssid
, bss
->ssid_len
) != 0)
914 wpa_printf(MSG_DEBUG
, "Interworking: Remove duplicate network entry for the same credential");
916 if (ssid
== wpa_s
->current_ssid
) {
917 wpa_sm_set_config(wpa_s
->wpa
, NULL
);
918 eapol_sm_notify_config(wpa_s
->eapol
, NULL
, NULL
);
919 wpa_s
->own_disconnect_req
= 1;
920 wpa_supplicant_deauthenticate(wpa_s
,
921 WLAN_REASON_DEAUTH_LEAVING
);
924 wpas_notify_network_removed(wpa_s
, ssid
);
925 wpa_config_remove_network(wpa_s
->conf
, ssid
->id
);
929 static int interworking_set_hs20_params(struct wpa_supplicant
*wpa_s
,
930 struct wpa_ssid
*ssid
)
932 const char *key_mgmt
= NULL
;
933 #ifdef CONFIG_IEEE80211R
935 struct wpa_driver_capa capa
;
937 res
= wpa_drv_get_capa(wpa_s
, &capa
);
938 if (res
== 0 && capa
.key_mgmt
& WPA_DRIVER_CAPA_KEY_MGMT_FT
) {
939 key_mgmt
= wpa_s
->conf
->pmf
!= NO_MGMT_FRAME_PROTECTION
?
940 "WPA-EAP WPA-EAP-SHA256 FT-EAP" :
943 #endif /* CONFIG_IEEE80211R */
946 key_mgmt
= wpa_s
->conf
->pmf
!= NO_MGMT_FRAME_PROTECTION
?
947 "WPA-EAP WPA-EAP-SHA256" : "WPA-EAP";
948 if (wpa_config_set(ssid
, "key_mgmt", key_mgmt
, 0) < 0)
950 if (wpa_config_set(ssid
, "proto", "RSN", 0) < 0)
952 if (wpa_config_set(ssid
, "pairwise", "CCMP", 0) < 0)
958 static int interworking_connect_3gpp(struct wpa_supplicant
*wpa_s
,
959 struct wpa_cred
*cred
,
960 struct wpa_bss
*bss
, int only_add
)
962 #ifdef INTERWORKING_3GPP
963 struct wpa_ssid
*ssid
;
968 if (bss
->anqp
== NULL
|| bss
->anqp
->anqp_3gpp
== NULL
)
971 wpa_msg(wpa_s
, MSG_DEBUG
, "Interworking: Connect with " MACSTR
972 " (3GPP)", MAC2STR(bss
->bssid
));
974 if (already_connected(wpa_s
, cred
, bss
)) {
975 wpa_msg(wpa_s
, MSG_INFO
, INTERWORKING_ALREADY_CONNECTED MACSTR
,
976 MAC2STR(bss
->bssid
));
977 return wpa_s
->current_ssid
->id
;
980 remove_duplicate_network(wpa_s
, cred
, bss
);
982 ssid
= wpa_config_add_network(wpa_s
->conf
);
985 ssid
->parent_cred
= cred
;
987 wpas_notify_network_added(wpa_s
, ssid
);
988 wpa_config_set_network_defaults(ssid
);
989 ssid
->priority
= cred
->priority
;
991 ssid
->ssid
= os_zalloc(bss
->ssid_len
+ 1);
992 if (ssid
->ssid
== NULL
)
994 os_memcpy(ssid
->ssid
, bss
->ssid
, bss
->ssid_len
);
995 ssid
->ssid_len
= bss
->ssid_len
;
996 ssid
->eap
.sim_num
= cred
->sim_num
;
998 if (interworking_set_hs20_params(wpa_s
, ssid
) < 0)
1001 eap_type
= EAP_TYPE_SIM
;
1002 if (cred
->pcsc
&& wpa_s
->scard
&& scard_supports_umts(wpa_s
->scard
))
1003 eap_type
= EAP_TYPE_AKA
;
1004 if (cred
->eap_method
&& cred
->eap_method
[0].vendor
== EAP_VENDOR_IETF
) {
1005 if (cred
->eap_method
[0].method
== EAP_TYPE_SIM
||
1006 cred
->eap_method
[0].method
== EAP_TYPE_AKA
||
1007 cred
->eap_method
[0].method
== EAP_TYPE_AKA_PRIME
)
1008 eap_type
= cred
->eap_method
[0].method
;
1014 res
= wpa_config_set(ssid
, "eap", "SIM", 0);
1018 res
= wpa_config_set(ssid
, "eap", "AKA", 0);
1020 case EAP_TYPE_AKA_PRIME
:
1022 res
= wpa_config_set(ssid
, "eap", "AKA'", 0);
1029 wpa_msg(wpa_s
, MSG_DEBUG
,
1030 "Selected EAP method (%d) not supported", eap_type
);
1034 if (!cred
->pcsc
&& set_root_nai(ssid
, cred
->imsi
, prefix
) < 0) {
1035 wpa_msg(wpa_s
, MSG_DEBUG
, "Failed to set Root NAI");
1039 if (cred
->milenage
&& cred
->milenage
[0]) {
1040 if (wpa_config_set_quoted(ssid
, "password",
1041 cred
->milenage
) < 0)
1043 } else if (cred
->pcsc
) {
1044 if (wpa_config_set_quoted(ssid
, "pcsc", "") < 0)
1046 if (wpa_s
->conf
->pcsc_pin
&&
1047 wpa_config_set_quoted(ssid
, "pin", wpa_s
->conf
->pcsc_pin
)
1052 wpa_s
->next_ssid
= ssid
;
1053 wpa_config_update_prio_list(wpa_s
->conf
);
1055 interworking_reconnect(wpa_s
);
1060 wpas_notify_network_removed(wpa_s
, ssid
);
1061 wpa_config_remove_network(wpa_s
->conf
, ssid
->id
);
1062 #endif /* INTERWORKING_3GPP */
1067 static int roaming_consortium_element_match(const u8
*ie
, const u8
*rc_id
,
1070 const u8
*pos
, *end
;
1077 end
= ie
+ 2 + ie
[1];
1079 /* Roaming Consortium element:
1080 * Number of ANQP OIs
1081 * OI #1 and #2 lengths
1082 * OI #1, [OI #2], [OI #3]
1088 pos
++; /* skip Number of ANQP OIs */
1090 if (pos
+ (lens
& 0x0f) + (lens
>> 4) > end
)
1093 if ((lens
& 0x0f) == rc_len
&& os_memcmp(pos
, rc_id
, rc_len
) == 0)
1097 if ((lens
>> 4) == rc_len
&& os_memcmp(pos
, rc_id
, rc_len
) == 0)
1101 if (pos
< end
&& (size_t) (end
- pos
) == rc_len
&&
1102 os_memcmp(pos
, rc_id
, rc_len
) == 0)
1109 static int roaming_consortium_anqp_match(const struct wpabuf
*anqp
,
1110 const u8
*rc_id
, size_t rc_len
)
1112 const u8
*pos
, *end
;
1118 pos
= wpabuf_head(anqp
);
1119 end
= pos
+ wpabuf_len(anqp
);
1121 /* Set of <OI Length, OI> duples */
1124 if (pos
+ len
> end
)
1126 if (len
== rc_len
&& os_memcmp(pos
, rc_id
, rc_len
) == 0)
1135 static int roaming_consortium_match(const u8
*ie
, const struct wpabuf
*anqp
,
1136 const u8
*rc_id
, size_t rc_len
)
1138 return roaming_consortium_element_match(ie
, rc_id
, rc_len
) ||
1139 roaming_consortium_anqp_match(anqp
, rc_id
, rc_len
);
1143 static int cred_no_required_oi_match(struct wpa_cred
*cred
, struct wpa_bss
*bss
)
1147 if (cred
->required_roaming_consortium_len
== 0)
1150 ie
= wpa_bss_get_ie(bss
, WLAN_EID_ROAMING_CONSORTIUM
);
1153 (bss
->anqp
== NULL
|| bss
->anqp
->roaming_consortium
== NULL
))
1156 return !roaming_consortium_match(ie
,
1158 bss
->anqp
->roaming_consortium
: NULL
,
1159 cred
->required_roaming_consortium
,
1160 cred
->required_roaming_consortium_len
);
1164 static int cred_excluded_ssid(struct wpa_cred
*cred
, struct wpa_bss
*bss
)
1168 if (!cred
->excluded_ssid
)
1171 for (i
= 0; i
< cred
->num_excluded_ssid
; i
++) {
1172 struct excluded_ssid
*e
= &cred
->excluded_ssid
[i
];
1173 if (bss
->ssid_len
== e
->ssid_len
&&
1174 os_memcmp(bss
->ssid
, e
->ssid
, e
->ssid_len
) == 0)
1182 static int cred_below_min_backhaul(struct wpa_supplicant
*wpa_s
,
1183 struct wpa_cred
*cred
, struct wpa_bss
*bss
)
1186 unsigned int dl_bandwidth
, ul_bandwidth
;
1188 u8 wan_info
, dl_load
, ul_load
;
1190 u32 ul_speed
, dl_speed
;
1192 if (!cred
->min_dl_bandwidth_home
&&
1193 !cred
->min_ul_bandwidth_home
&&
1194 !cred
->min_dl_bandwidth_roaming
&&
1195 !cred
->min_ul_bandwidth_roaming
)
1196 return 0; /* No bandwidth constraint specified */
1198 if (bss
->anqp
== NULL
|| bss
->anqp
->hs20_wan_metrics
== NULL
)
1199 return 0; /* No WAN Metrics known - ignore constraint */
1201 wan
= wpabuf_head(bss
->anqp
->hs20_wan_metrics
);
1203 if (wan_info
& BIT(3))
1204 return 1; /* WAN link at capacity */
1205 lmd
= WPA_GET_LE16(wan
+ 11);
1207 return 0; /* Downlink/Uplink Load was not measured */
1208 dl_speed
= WPA_GET_LE32(wan
+ 1);
1209 ul_speed
= WPA_GET_LE32(wan
+ 5);
1213 if (dl_speed
>= 0xffffff)
1214 dl_bandwidth
= dl_speed
/ 255 * (255 - dl_load
);
1216 dl_bandwidth
= dl_speed
* (255 - dl_load
) / 255;
1218 if (ul_speed
>= 0xffffff)
1219 ul_bandwidth
= ul_speed
/ 255 * (255 - ul_load
);
1221 ul_bandwidth
= ul_speed
* (255 - ul_load
) / 255;
1223 res
= interworking_home_sp_cred(wpa_s
, cred
, bss
->anqp
?
1224 bss
->anqp
->domain_name
: NULL
);
1226 if (cred
->min_dl_bandwidth_home
> dl_bandwidth
)
1228 if (cred
->min_ul_bandwidth_home
> ul_bandwidth
)
1231 if (cred
->min_dl_bandwidth_roaming
> dl_bandwidth
)
1233 if (cred
->min_ul_bandwidth_roaming
> ul_bandwidth
)
1241 static int cred_over_max_bss_load(struct wpa_supplicant
*wpa_s
,
1242 struct wpa_cred
*cred
, struct wpa_bss
*bss
)
1247 if (!cred
->max_bss_load
)
1248 return 0; /* No BSS Load constraint specified */
1250 ie
= wpa_bss_get_ie(bss
, WLAN_EID_BSS_LOAD
);
1251 if (ie
== NULL
|| ie
[1] < 3)
1252 return 0; /* No BSS Load advertised */
1254 res
= interworking_home_sp_cred(wpa_s
, cred
, bss
->anqp
?
1255 bss
->anqp
->domain_name
: NULL
);
1257 return 0; /* Not a home network */
1259 return ie
[4] > cred
->max_bss_load
;
1263 static int has_proto_match(const u8
*pos
, const u8
*end
, u8 proto
)
1265 while (pos
+ 4 <= end
) {
1266 if (pos
[0] == proto
&& pos
[3] == 1 /* Open */)
1275 static int has_proto_port_match(const u8
*pos
, const u8
*end
, u8 proto
,
1278 while (pos
+ 4 <= end
) {
1279 if (pos
[0] == proto
&& WPA_GET_LE16(&pos
[1]) == port
&&
1280 pos
[3] == 1 /* Open */)
1289 static int cred_conn_capab_missing(struct wpa_supplicant
*wpa_s
,
1290 struct wpa_cred
*cred
, struct wpa_bss
*bss
)
1293 const u8
*capab
, *end
;
1297 if (!cred
->num_req_conn_capab
)
1298 return 0; /* No connection capability constraint specified */
1300 if (bss
->anqp
== NULL
|| bss
->anqp
->hs20_connection_capability
== NULL
)
1301 return 0; /* No Connection Capability known - ignore constraint
1304 res
= interworking_home_sp_cred(wpa_s
, cred
, bss
->anqp
?
1305 bss
->anqp
->domain_name
: NULL
);
1307 return 0; /* No constraint in home network */
1309 capab
= wpabuf_head(bss
->anqp
->hs20_connection_capability
);
1310 end
= capab
+ wpabuf_len(bss
->anqp
->hs20_connection_capability
);
1312 for (i
= 0; i
< cred
->num_req_conn_capab
; i
++) {
1313 ports
= cred
->req_conn_capab_port
[i
];
1315 if (!has_proto_match(capab
, end
,
1316 cred
->req_conn_capab_proto
[i
]))
1319 for (j
= 0; ports
[j
] > -1; j
++) {
1320 if (!has_proto_port_match(
1322 cred
->req_conn_capab_proto
[i
],
1333 static struct wpa_cred
* interworking_credentials_available_roaming_consortium(
1334 struct wpa_supplicant
*wpa_s
, struct wpa_bss
*bss
, int ignore_bw
,
1337 struct wpa_cred
*cred
, *selected
= NULL
;
1339 int is_excluded
= 0;
1341 ie
= wpa_bss_get_ie(bss
, WLAN_EID_ROAMING_CONSORTIUM
);
1344 (bss
->anqp
== NULL
|| bss
->anqp
->roaming_consortium
== NULL
))
1347 if (wpa_s
->conf
->cred
== NULL
)
1350 for (cred
= wpa_s
->conf
->cred
; cred
; cred
= cred
->next
) {
1351 if (cred
->roaming_consortium_len
== 0)
1354 if (!roaming_consortium_match(ie
,
1356 bss
->anqp
->roaming_consortium
:
1358 cred
->roaming_consortium
,
1359 cred
->roaming_consortium_len
))
1362 if (cred_no_required_oi_match(cred
, bss
))
1364 if (!ignore_bw
&& cred_below_min_backhaul(wpa_s
, cred
, bss
))
1366 if (!ignore_bw
&& cred_over_max_bss_load(wpa_s
, cred
, bss
))
1368 if (!ignore_bw
&& cred_conn_capab_missing(wpa_s
, cred
, bss
))
1370 if (cred_excluded_ssid(cred
, bss
)) {
1371 if (excluded
== NULL
)
1373 if (selected
== NULL
) {
1378 if (selected
== NULL
|| is_excluded
||
1379 cred_prio_cmp(selected
, cred
) < 0) {
1387 *excluded
= is_excluded
;
1393 static int interworking_set_eap_params(struct wpa_ssid
*ssid
,
1394 struct wpa_cred
*cred
, int ttls
)
1396 if (cred
->eap_method
) {
1397 ttls
= cred
->eap_method
->vendor
== EAP_VENDOR_IETF
&&
1398 cred
->eap_method
->method
== EAP_TYPE_TTLS
;
1400 os_free(ssid
->eap
.eap_methods
);
1401 ssid
->eap
.eap_methods
=
1402 os_malloc(sizeof(struct eap_method_type
) * 2);
1403 if (ssid
->eap
.eap_methods
== NULL
)
1405 os_memcpy(ssid
->eap
.eap_methods
, cred
->eap_method
,
1406 sizeof(*cred
->eap_method
));
1407 ssid
->eap
.eap_methods
[1].vendor
= EAP_VENDOR_IETF
;
1408 ssid
->eap
.eap_methods
[1].method
= EAP_TYPE_NONE
;
1411 if (ttls
&& cred
->username
&& cred
->username
[0]) {
1414 /* Use anonymous NAI in Phase 1 */
1415 pos
= os_strchr(cred
->username
, '@');
1417 size_t buflen
= 9 + os_strlen(pos
) + 1;
1418 anon
= os_malloc(buflen
);
1421 os_snprintf(anon
, buflen
, "anonymous%s", pos
);
1422 } else if (cred
->realm
) {
1423 size_t buflen
= 10 + os_strlen(cred
->realm
) + 1;
1424 anon
= os_malloc(buflen
);
1427 os_snprintf(anon
, buflen
, "anonymous@%s", cred
->realm
);
1429 anon
= os_strdup("anonymous");
1433 if (wpa_config_set_quoted(ssid
, "anonymous_identity", anon
) <
1441 if (cred
->username
&& cred
->username
[0] &&
1442 wpa_config_set_quoted(ssid
, "identity", cred
->username
) < 0)
1445 if (cred
->password
&& cred
->password
[0]) {
1446 if (cred
->ext_password
&&
1447 wpa_config_set(ssid
, "password", cred
->password
, 0) < 0)
1449 if (!cred
->ext_password
&&
1450 wpa_config_set_quoted(ssid
, "password", cred
->password
) <
1455 if (cred
->client_cert
&& cred
->client_cert
[0] &&
1456 wpa_config_set_quoted(ssid
, "client_cert", cred
->client_cert
) < 0)
1460 if (cred
->private_key
&&
1461 os_strncmp(cred
->private_key
, "keystore://", 11) == 0) {
1462 /* Use OpenSSL engine configuration for Android keystore */
1463 if (wpa_config_set_quoted(ssid
, "engine_id", "keystore") < 0 ||
1464 wpa_config_set_quoted(ssid
, "key_id",
1465 cred
->private_key
+ 11) < 0 ||
1466 wpa_config_set(ssid
, "engine", "1", 0) < 0)
1469 #endif /* ANDROID */
1470 if (cred
->private_key
&& cred
->private_key
[0] &&
1471 wpa_config_set_quoted(ssid
, "private_key", cred
->private_key
) < 0)
1474 if (cred
->private_key_passwd
&& cred
->private_key_passwd
[0] &&
1475 wpa_config_set_quoted(ssid
, "private_key_passwd",
1476 cred
->private_key_passwd
) < 0)
1480 os_free(ssid
->eap
.phase1
);
1481 ssid
->eap
.phase1
= os_strdup(cred
->phase1
);
1484 os_free(ssid
->eap
.phase2
);
1485 ssid
->eap
.phase2
= os_strdup(cred
->phase2
);
1488 if (cred
->ca_cert
&& cred
->ca_cert
[0] &&
1489 wpa_config_set_quoted(ssid
, "ca_cert", cred
->ca_cert
) < 0)
1492 if (cred
->domain_suffix_match
&& cred
->domain_suffix_match
[0] &&
1493 wpa_config_set_quoted(ssid
, "domain_suffix_match",
1494 cred
->domain_suffix_match
) < 0)
1497 ssid
->eap
.ocsp
= cred
->ocsp
;
1503 static int interworking_connect_roaming_consortium(
1504 struct wpa_supplicant
*wpa_s
, struct wpa_cred
*cred
,
1505 struct wpa_bss
*bss
, int only_add
)
1507 struct wpa_ssid
*ssid
;
1509 wpa_msg(wpa_s
, MSG_DEBUG
, "Interworking: Connect with " MACSTR
1510 " based on roaming consortium match", MAC2STR(bss
->bssid
));
1512 if (already_connected(wpa_s
, cred
, bss
)) {
1513 wpa_msg(wpa_s
, MSG_INFO
, INTERWORKING_ALREADY_CONNECTED MACSTR
,
1514 MAC2STR(bss
->bssid
));
1515 return wpa_s
->current_ssid
->id
;
1518 remove_duplicate_network(wpa_s
, cred
, bss
);
1520 ssid
= wpa_config_add_network(wpa_s
->conf
);
1523 ssid
->parent_cred
= cred
;
1524 wpas_notify_network_added(wpa_s
, ssid
);
1525 wpa_config_set_network_defaults(ssid
);
1526 ssid
->priority
= cred
->priority
;
1527 ssid
->temporary
= 1;
1528 ssid
->ssid
= os_zalloc(bss
->ssid_len
+ 1);
1529 if (ssid
->ssid
== NULL
)
1531 os_memcpy(ssid
->ssid
, bss
->ssid
, bss
->ssid_len
);
1532 ssid
->ssid_len
= bss
->ssid_len
;
1534 if (interworking_set_hs20_params(wpa_s
, ssid
) < 0)
1537 if (cred
->eap_method
== NULL
) {
1538 wpa_msg(wpa_s
, MSG_DEBUG
,
1539 "Interworking: No EAP method set for credential using roaming consortium");
1543 if (interworking_set_eap_params(
1545 cred
->eap_method
->vendor
== EAP_VENDOR_IETF
&&
1546 cred
->eap_method
->method
== EAP_TYPE_TTLS
) < 0)
1549 wpa_s
->next_ssid
= ssid
;
1550 wpa_config_update_prio_list(wpa_s
->conf
);
1552 interworking_reconnect(wpa_s
);
1557 wpas_notify_network_removed(wpa_s
, ssid
);
1558 wpa_config_remove_network(wpa_s
->conf
, ssid
->id
);
1563 static int interworking_connect_helper(struct wpa_supplicant
*wpa_s
,
1564 struct wpa_bss
*bss
, int allow_excluded
,
1567 struct wpa_cred
*cred
, *cred_rc
, *cred_3gpp
;
1568 struct wpa_ssid
*ssid
;
1569 struct nai_realm
*realm
;
1570 struct nai_realm_eap
*eap
= NULL
;
1573 int excluded
= 0, *excl
= allow_excluded
? &excluded
: NULL
;
1576 if (wpa_s
->conf
->cred
== NULL
|| bss
== NULL
)
1578 if (disallowed_bssid(wpa_s
, bss
->bssid
) ||
1579 disallowed_ssid(wpa_s
, bss
->ssid
, bss
->ssid_len
)) {
1580 wpa_msg(wpa_s
, MSG_DEBUG
,
1581 "Interworking: Reject connection to disallowed BSS "
1582 MACSTR
, MAC2STR(bss
->bssid
));
1586 wpa_printf(MSG_DEBUG
, "Interworking: Considering BSS " MACSTR
1587 " for connection (allow_excluded=%d)",
1588 MAC2STR(bss
->bssid
), allow_excluded
);
1590 if (!wpa_bss_get_ie(bss
, WLAN_EID_RSN
)) {
1592 * We currently support only HS 2.0 networks and those are
1593 * required to use WPA2-Enterprise.
1595 wpa_msg(wpa_s
, MSG_DEBUG
,
1596 "Interworking: Network does not use RSN");
1600 cred_rc
= interworking_credentials_available_roaming_consortium(
1601 wpa_s
, bss
, 0, excl
);
1603 wpa_msg(wpa_s
, MSG_DEBUG
,
1604 "Interworking: Highest roaming consortium matching credential priority %d sp_priority %d",
1605 cred_rc
->priority
, cred_rc
->sp_priority
);
1606 if (allow_excluded
&& excl
&& !(*excl
))
1610 cred
= interworking_credentials_available_realm(wpa_s
, bss
, 0, excl
);
1612 wpa_msg(wpa_s
, MSG_DEBUG
,
1613 "Interworking: Highest NAI Realm list matching credential priority %d sp_priority %d",
1614 cred
->priority
, cred
->sp_priority
);
1615 if (allow_excluded
&& excl
&& !(*excl
))
1619 cred_3gpp
= interworking_credentials_available_3gpp(wpa_s
, bss
, 0,
1622 wpa_msg(wpa_s
, MSG_DEBUG
,
1623 "Interworking: Highest 3GPP matching credential priority %d sp_priority %d",
1624 cred_3gpp
->priority
, cred_3gpp
->sp_priority
);
1625 if (allow_excluded
&& excl
&& !(*excl
))
1629 if (!cred_rc
&& !cred
&& !cred_3gpp
) {
1630 wpa_msg(wpa_s
, MSG_DEBUG
,
1631 "Interworking: No full credential matches - consider options without BW(etc.) limits");
1632 cred_rc
= interworking_credentials_available_roaming_consortium(
1633 wpa_s
, bss
, 1, excl
);
1635 wpa_msg(wpa_s
, MSG_DEBUG
,
1636 "Interworking: Highest roaming consortium matching credential priority %d sp_priority %d (ignore BW)",
1637 cred_rc
->priority
, cred_rc
->sp_priority
);
1638 if (allow_excluded
&& excl
&& !(*excl
))
1642 cred
= interworking_credentials_available_realm(wpa_s
, bss
, 1,
1645 wpa_msg(wpa_s
, MSG_DEBUG
,
1646 "Interworking: Highest NAI Realm list matching credential priority %d sp_priority %d (ignore BW)",
1647 cred
->priority
, cred
->sp_priority
);
1648 if (allow_excluded
&& excl
&& !(*excl
))
1652 cred_3gpp
= interworking_credentials_available_3gpp(wpa_s
, bss
,
1655 wpa_msg(wpa_s
, MSG_DEBUG
,
1656 "Interworking: Highest 3GPP matching credential priority %d sp_priority %d (ignore BW)",
1657 cred_3gpp
->priority
, cred_3gpp
->sp_priority
);
1658 if (allow_excluded
&& excl
&& !(*excl
))
1664 (cred
== NULL
|| cred_prio_cmp(cred_rc
, cred
) >= 0) &&
1665 (cred_3gpp
== NULL
|| cred_prio_cmp(cred_rc
, cred_3gpp
) >= 0))
1666 return interworking_connect_roaming_consortium(wpa_s
, cred_rc
,
1670 (cred
== NULL
|| cred_prio_cmp(cred_3gpp
, cred
) >= 0)) {
1671 return interworking_connect_3gpp(wpa_s
, cred_3gpp
, bss
,
1676 wpa_msg(wpa_s
, MSG_DEBUG
,
1677 "Interworking: No matching credentials found for "
1678 MACSTR
, MAC2STR(bss
->bssid
));
1682 realm
= nai_realm_parse(bss
->anqp
? bss
->anqp
->nai_realm
: NULL
,
1684 if (realm
== NULL
) {
1685 wpa_msg(wpa_s
, MSG_DEBUG
,
1686 "Interworking: Could not parse NAI Realm list from "
1687 MACSTR
, MAC2STR(bss
->bssid
));
1691 for (i
= 0; i
< count
; i
++) {
1692 if (!nai_realm_match(&realm
[i
], cred
->realm
))
1694 eap
= nai_realm_find_eap(wpa_s
, cred
, &realm
[i
]);
1700 wpa_msg(wpa_s
, MSG_DEBUG
,
1701 "Interworking: No matching credentials and EAP method found for "
1702 MACSTR
, MAC2STR(bss
->bssid
));
1703 nai_realm_free(realm
, count
);
1707 wpa_msg(wpa_s
, MSG_DEBUG
, "Interworking: Connect with " MACSTR
,
1708 MAC2STR(bss
->bssid
));
1710 if (already_connected(wpa_s
, cred
, bss
)) {
1711 wpa_msg(wpa_s
, MSG_INFO
, INTERWORKING_ALREADY_CONNECTED MACSTR
,
1712 MAC2STR(bss
->bssid
));
1713 nai_realm_free(realm
, count
);
1717 remove_duplicate_network(wpa_s
, cred
, bss
);
1719 ssid
= wpa_config_add_network(wpa_s
->conf
);
1721 nai_realm_free(realm
, count
);
1724 ssid
->parent_cred
= cred
;
1725 wpas_notify_network_added(wpa_s
, ssid
);
1726 wpa_config_set_network_defaults(ssid
);
1727 ssid
->priority
= cred
->priority
;
1728 ssid
->temporary
= 1;
1729 ssid
->ssid
= os_zalloc(bss
->ssid_len
+ 1);
1730 if (ssid
->ssid
== NULL
)
1732 os_memcpy(ssid
->ssid
, bss
->ssid
, bss
->ssid_len
);
1733 ssid
->ssid_len
= bss
->ssid_len
;
1735 if (interworking_set_hs20_params(wpa_s
, ssid
) < 0)
1738 if (wpa_config_set(ssid
, "eap", eap_get_name(EAP_VENDOR_IETF
,
1739 eap
->method
), 0) < 0)
1742 switch (eap
->method
) {
1744 if (eap
->inner_method
) {
1745 os_snprintf(buf
, sizeof(buf
), "\"autheap=%s\"",
1746 eap_get_name(EAP_VENDOR_IETF
,
1747 eap
->inner_method
));
1748 if (wpa_config_set(ssid
, "phase2", buf
, 0) < 0)
1752 switch (eap
->inner_non_eap
) {
1753 case NAI_REALM_INNER_NON_EAP_PAP
:
1754 if (wpa_config_set(ssid
, "phase2", "\"auth=PAP\"", 0) <
1758 case NAI_REALM_INNER_NON_EAP_CHAP
:
1759 if (wpa_config_set(ssid
, "phase2", "\"auth=CHAP\"", 0)
1763 case NAI_REALM_INNER_NON_EAP_MSCHAP
:
1764 if (wpa_config_set(ssid
, "phase2", "\"auth=MSCHAP\"",
1768 case NAI_REALM_INNER_NON_EAP_MSCHAPV2
:
1769 if (wpa_config_set(ssid
, "phase2", "\"auth=MSCHAPV2\"",
1774 /* EAP params were not set - assume TTLS/MSCHAPv2 */
1775 if (wpa_config_set(ssid
, "phase2", "\"auth=MSCHAPV2\"",
1783 if (wpa_config_set(ssid
, "phase1", "\"fast_provisioning=2\"",
1786 if (wpa_config_set(ssid
, "pac_file",
1787 "\"blob://pac_interworking\"", 0) < 0)
1789 name
= eap_get_name(EAP_VENDOR_IETF
,
1790 eap
->inner_method
? eap
->inner_method
:
1794 os_snprintf(buf
, sizeof(buf
), "\"auth=%s\"", name
);
1795 if (wpa_config_set(ssid
, "phase2", buf
, 0) < 0)
1802 if (interworking_set_eap_params(ssid
, cred
,
1803 eap
->method
== EAP_TYPE_TTLS
) < 0)
1806 nai_realm_free(realm
, count
);
1808 wpa_s
->next_ssid
= ssid
;
1809 wpa_config_update_prio_list(wpa_s
->conf
);
1811 interworking_reconnect(wpa_s
);
1816 wpas_notify_network_removed(wpa_s
, ssid
);
1817 wpa_config_remove_network(wpa_s
->conf
, ssid
->id
);
1818 nai_realm_free(realm
, count
);
1823 int interworking_connect(struct wpa_supplicant
*wpa_s
, struct wpa_bss
*bss
,
1826 return interworking_connect_helper(wpa_s
, bss
, 1, only_add
);
1831 static int interworking_pcsc_read_imsi(struct wpa_supplicant
*wpa_s
)
1835 if (wpa_s
->imsi
[0] && wpa_s
->mnc_len
)
1838 len
= sizeof(wpa_s
->imsi
) - 1;
1839 if (scard_get_imsi(wpa_s
->scard
, wpa_s
->imsi
, &len
)) {
1840 scard_deinit(wpa_s
->scard
);
1841 wpa_s
->scard
= NULL
;
1842 wpa_msg(wpa_s
, MSG_ERROR
, "Could not read IMSI");
1845 wpa_s
->imsi
[len
] = '\0';
1846 wpa_s
->mnc_len
= scard_get_mnc_len(wpa_s
->scard
);
1847 wpa_printf(MSG_DEBUG
, "SCARD: IMSI %s (MNC length %d)",
1848 wpa_s
->imsi
, wpa_s
->mnc_len
);
1852 #endif /* PCSC_FUNCS */
1855 static struct wpa_cred
* interworking_credentials_available_3gpp(
1856 struct wpa_supplicant
*wpa_s
, struct wpa_bss
*bss
, int ignore_bw
,
1859 struct wpa_cred
*selected
= NULL
;
1860 #ifdef INTERWORKING_3GPP
1861 struct wpa_cred
*cred
;
1863 int is_excluded
= 0;
1865 if (bss
->anqp
== NULL
|| bss
->anqp
->anqp_3gpp
== NULL
) {
1866 wpa_msg(wpa_s
, MSG_DEBUG
,
1867 "interworking-avail-3gpp: not avail, anqp: %p anqp_3gpp: %p",
1868 bss
->anqp
, bss
->anqp
? bss
->anqp
->anqp_3gpp
: NULL
);
1872 #ifdef CONFIG_EAP_PROXY
1873 if (!wpa_s
->imsi
[0]) {
1875 wpa_msg(wpa_s
, MSG_DEBUG
,
1876 "Interworking: IMSI not available - try to read again through eap_proxy");
1877 wpa_s
->mnc_len
= eapol_sm_get_eap_proxy_imsi(wpa_s
->eapol
,
1880 if (wpa_s
->mnc_len
> 0) {
1881 wpa_s
->imsi
[len
] = '\0';
1882 wpa_msg(wpa_s
, MSG_DEBUG
,
1883 "eap_proxy: IMSI %s (MNC length %d)",
1884 wpa_s
->imsi
, wpa_s
->mnc_len
);
1886 wpa_msg(wpa_s
, MSG_DEBUG
,
1887 "eap_proxy: IMSI not available");
1890 #endif /* CONFIG_EAP_PROXY */
1892 for (cred
= wpa_s
->conf
->cred
; cred
; cred
= cred
->next
) {
1900 if (cred
->pcsc
&& wpa_s
->scard
) {
1901 if (interworking_pcsc_read_imsi(wpa_s
) < 0)
1904 mnc_len
= wpa_s
->mnc_len
;
1907 #endif /* PCSC_FUNCS */
1908 #ifdef CONFIG_EAP_PROXY
1909 if (cred
->pcsc
&& wpa_s
->mnc_len
> 0 && wpa_s
->imsi
[0]) {
1911 mnc_len
= wpa_s
->mnc_len
;
1914 #endif /* CONFIG_EAP_PROXY */
1916 if (cred
->imsi
== NULL
|| !cred
->imsi
[0] ||
1917 (!wpa_s
->conf
->external_sim
&&
1918 (cred
->milenage
== NULL
|| !cred
->milenage
[0])))
1921 sep
= os_strchr(cred
->imsi
, '-');
1923 (sep
- cred
->imsi
!= 5 && sep
- cred
->imsi
!= 6))
1925 mnc_len
= sep
- cred
->imsi
- 3;
1926 os_memcpy(imsi_buf
, cred
->imsi
, 3 + mnc_len
);
1928 msin_len
= os_strlen(cred
->imsi
);
1929 if (3 + mnc_len
+ msin_len
>= sizeof(imsi_buf
) - 1)
1930 msin_len
= sizeof(imsi_buf
) - 3 - mnc_len
- 1;
1931 os_memcpy(&imsi_buf
[3 + mnc_len
], sep
, msin_len
);
1932 imsi_buf
[3 + mnc_len
+ msin_len
] = '\0';
1935 #if defined(PCSC_FUNCS) || defined(CONFIG_EAP_PROXY)
1937 #endif /* PCSC_FUNCS || CONFIG_EAP_PROXY */
1938 wpa_msg(wpa_s
, MSG_DEBUG
,
1939 "Interworking: Parsing 3GPP info from " MACSTR
,
1940 MAC2STR(bss
->bssid
));
1941 ret
= plmn_id_match(bss
->anqp
->anqp_3gpp
, imsi
, mnc_len
);
1942 wpa_msg(wpa_s
, MSG_DEBUG
, "PLMN match %sfound",
1945 if (cred_no_required_oi_match(cred
, bss
))
1948 cred_below_min_backhaul(wpa_s
, cred
, bss
))
1951 cred_over_max_bss_load(wpa_s
, cred
, bss
))
1954 cred_conn_capab_missing(wpa_s
, cred
, bss
))
1956 if (cred_excluded_ssid(cred
, bss
)) {
1957 if (excluded
== NULL
)
1959 if (selected
== NULL
) {
1964 if (selected
== NULL
|| is_excluded
||
1965 cred_prio_cmp(selected
, cred
) < 0) {
1974 *excluded
= is_excluded
;
1975 #endif /* INTERWORKING_3GPP */
1980 static struct wpa_cred
* interworking_credentials_available_realm(
1981 struct wpa_supplicant
*wpa_s
, struct wpa_bss
*bss
, int ignore_bw
,
1984 struct wpa_cred
*cred
, *selected
= NULL
;
1985 struct nai_realm
*realm
;
1987 int is_excluded
= 0;
1989 if (bss
->anqp
== NULL
|| bss
->anqp
->nai_realm
== NULL
)
1992 if (wpa_s
->conf
->cred
== NULL
)
1995 wpa_msg(wpa_s
, MSG_DEBUG
, "Interworking: Parsing NAI Realm list from "
1996 MACSTR
, MAC2STR(bss
->bssid
));
1997 realm
= nai_realm_parse(bss
->anqp
->nai_realm
, &count
);
1998 if (realm
== NULL
) {
1999 wpa_msg(wpa_s
, MSG_DEBUG
,
2000 "Interworking: Could not parse NAI Realm list from "
2001 MACSTR
, MAC2STR(bss
->bssid
));
2005 for (cred
= wpa_s
->conf
->cred
; cred
; cred
= cred
->next
) {
2006 if (cred
->realm
== NULL
)
2009 for (i
= 0; i
< count
; i
++) {
2010 if (!nai_realm_match(&realm
[i
], cred
->realm
))
2012 if (nai_realm_find_eap(wpa_s
, cred
, &realm
[i
])) {
2013 if (cred_no_required_oi_match(cred
, bss
))
2016 cred_below_min_backhaul(wpa_s
, cred
, bss
))
2019 cred_over_max_bss_load(wpa_s
, cred
, bss
))
2022 cred_conn_capab_missing(wpa_s
, cred
, bss
))
2024 if (cred_excluded_ssid(cred
, bss
)) {
2025 if (excluded
== NULL
)
2027 if (selected
== NULL
) {
2032 if (selected
== NULL
|| is_excluded
||
2033 cred_prio_cmp(selected
, cred
) < 0)
2041 wpa_msg(wpa_s
, MSG_DEBUG
,
2042 "Interworking: realm-find-eap returned false");
2047 nai_realm_free(realm
, count
);
2050 *excluded
= is_excluded
;
2056 static struct wpa_cred
* interworking_credentials_available_helper(
2057 struct wpa_supplicant
*wpa_s
, struct wpa_bss
*bss
, int ignore_bw
,
2060 struct wpa_cred
*cred
, *cred2
;
2061 int excluded1
, excluded2
;
2063 if (disallowed_bssid(wpa_s
, bss
->bssid
) ||
2064 disallowed_ssid(wpa_s
, bss
->ssid
, bss
->ssid_len
)) {
2065 wpa_printf(MSG_DEBUG
, "Interworking: Ignore disallowed BSS "
2066 MACSTR
, MAC2STR(bss
->bssid
));
2070 cred
= interworking_credentials_available_realm(wpa_s
, bss
, ignore_bw
,
2072 cred2
= interworking_credentials_available_3gpp(wpa_s
, bss
, ignore_bw
,
2074 if (cred
&& cred2
&&
2075 (cred_prio_cmp(cred2
, cred
) >= 0 || (!excluded2
&& excluded1
))) {
2077 excluded1
= excluded2
;
2081 excluded1
= excluded2
;
2084 cred2
= interworking_credentials_available_roaming_consortium(
2085 wpa_s
, bss
, ignore_bw
, &excluded2
);
2086 if (cred
&& cred2
&&
2087 (cred_prio_cmp(cred2
, cred
) >= 0 || (!excluded2
&& excluded1
))) {
2089 excluded1
= excluded2
;
2093 excluded1
= excluded2
;
2097 *excluded
= excluded1
;
2102 static struct wpa_cred
* interworking_credentials_available(
2103 struct wpa_supplicant
*wpa_s
, struct wpa_bss
*bss
, int *excluded
)
2105 struct wpa_cred
*cred
;
2109 cred
= interworking_credentials_available_helper(wpa_s
, bss
, 0,
2113 return interworking_credentials_available_helper(wpa_s
, bss
, 1,
2118 int domain_name_list_contains(struct wpabuf
*domain_names
,
2119 const char *domain
, int exact_match
)
2121 const u8
*pos
, *end
;
2124 len
= os_strlen(domain
);
2125 pos
= wpabuf_head(domain_names
);
2126 end
= pos
+ wpabuf_len(domain_names
);
2128 while (pos
+ 1 < end
) {
2129 if (pos
+ 1 + pos
[0] > end
)
2132 wpa_hexdump_ascii(MSG_DEBUG
, "Interworking: AP domain name",
2134 if (pos
[0] == len
&&
2135 os_strncasecmp(domain
, (const char *) (pos
+ 1), len
) == 0)
2137 if (!exact_match
&& pos
[0] > len
&& pos
[pos
[0] - len
] == '.') {
2138 const char *ap
= (const char *) (pos
+ 1);
2139 int offset
= pos
[0] - len
;
2140 if (os_strncasecmp(domain
, ap
+ offset
, len
) == 0)
2151 int interworking_home_sp_cred(struct wpa_supplicant
*wpa_s
,
2152 struct wpa_cred
*cred
,
2153 struct wpabuf
*domain_names
)
2157 #ifdef INTERWORKING_3GPP
2158 char nai
[100], *realm
;
2165 else if (cred
->pcsc
&& wpa_s
->scard
) {
2166 if (interworking_pcsc_read_imsi(wpa_s
) < 0)
2169 mnc_len
= wpa_s
->mnc_len
;
2171 #endif /* PCSC_FUNCS */
2172 #ifdef CONFIG_EAP_PROXY
2173 else if (cred
->pcsc
&& wpa_s
->mnc_len
> 0 && wpa_s
->imsi
[0]) {
2175 mnc_len
= wpa_s
->mnc_len
;
2177 #endif /* CONFIG_EAP_PROXY */
2179 imsi
&& build_root_nai(nai
, sizeof(nai
), imsi
, mnc_len
, 0) == 0) {
2180 realm
= os_strchr(nai
, '@');
2183 wpa_msg(wpa_s
, MSG_DEBUG
,
2184 "Interworking: Search for match with SIM/USIM domain %s",
2187 domain_name_list_contains(domain_names
, realm
, 1))
2192 #endif /* INTERWORKING_3GPP */
2194 if (domain_names
== NULL
|| cred
->domain
== NULL
)
2197 for (i
= 0; i
< cred
->num_domain
; i
++) {
2198 wpa_msg(wpa_s
, MSG_DEBUG
,
2199 "Interworking: Search for match with home SP FQDN %s",
2201 if (domain_name_list_contains(domain_names
, cred
->domain
[i
], 1))
2209 static int interworking_home_sp(struct wpa_supplicant
*wpa_s
,
2210 struct wpabuf
*domain_names
)
2212 struct wpa_cred
*cred
;
2214 if (domain_names
== NULL
|| wpa_s
->conf
->cred
== NULL
)
2217 for (cred
= wpa_s
->conf
->cred
; cred
; cred
= cred
->next
) {
2218 int res
= interworking_home_sp_cred(wpa_s
, cred
, domain_names
);
2227 static int interworking_find_network_match(struct wpa_supplicant
*wpa_s
)
2229 struct wpa_bss
*bss
;
2230 struct wpa_ssid
*ssid
;
2232 dl_list_for_each(bss
, &wpa_s
->bss
, struct wpa_bss
, list
) {
2233 for (ssid
= wpa_s
->conf
->ssid
; ssid
; ssid
= ssid
->next
) {
2234 if (wpas_network_disabled(wpa_s
, ssid
) ||
2235 ssid
->mode
!= WPAS_MODE_INFRA
)
2237 if (ssid
->ssid_len
!= bss
->ssid_len
||
2238 os_memcmp(ssid
->ssid
, bss
->ssid
, ssid
->ssid_len
) !=
2242 * TODO: Consider more accurate matching of security
2243 * configuration similarly to what is done in events.c
2253 static int roaming_partner_match(struct wpa_supplicant
*wpa_s
,
2254 struct roaming_partner
*partner
,
2255 struct wpabuf
*domain_names
)
2257 wpa_printf(MSG_DEBUG
, "Interworking: Comparing roaming_partner info fqdn='%s' exact_match=%d priority=%u country='%s'",
2258 partner
->fqdn
, partner
->exact_match
, partner
->priority
,
2260 wpa_hexdump_ascii(MSG_DEBUG
, "Interworking: Domain names",
2261 wpabuf_head(domain_names
),
2262 wpabuf_len(domain_names
));
2263 if (!domain_name_list_contains(domain_names
, partner
->fqdn
,
2264 partner
->exact_match
))
2266 /* TODO: match Country */
2271 static u8
roaming_prio(struct wpa_supplicant
*wpa_s
, struct wpa_cred
*cred
,
2272 struct wpa_bss
*bss
)
2276 if (bss
->anqp
== NULL
|| bss
->anqp
->domain_name
== NULL
) {
2277 wpa_printf(MSG_DEBUG
, "Interworking: No ANQP domain name info -> use default roaming partner priority 128");
2278 return 128; /* cannot check preference with domain name */
2281 if (interworking_home_sp_cred(wpa_s
, cred
, bss
->anqp
->domain_name
) > 0)
2283 wpa_printf(MSG_DEBUG
, "Interworking: Determined to be home SP -> use maximum preference 0 as roaming partner priority");
2284 return 0; /* max preference for home SP network */
2287 for (i
= 0; i
< cred
->num_roaming_partner
; i
++) {
2288 if (roaming_partner_match(wpa_s
, &cred
->roaming_partner
[i
],
2289 bss
->anqp
->domain_name
)) {
2290 wpa_printf(MSG_DEBUG
, "Interworking: Roaming partner preference match - priority %u",
2291 cred
->roaming_partner
[i
].priority
);
2292 return cred
->roaming_partner
[i
].priority
;
2296 wpa_printf(MSG_DEBUG
, "Interworking: No roaming partner preference match - use default roaming partner priority 128");
2301 static struct wpa_bss
* pick_best_roaming_partner(struct wpa_supplicant
*wpa_s
,
2302 struct wpa_bss
*selected
,
2303 struct wpa_cred
*cred
)
2305 struct wpa_bss
*bss
;
2307 struct wpa_cred
*cred2
;
2310 * Check if any other BSS is operated by a more preferred roaming
2314 best_prio
= roaming_prio(wpa_s
, cred
, selected
);
2315 wpa_printf(MSG_DEBUG
, "Interworking: roaming_prio=%u for selected BSS "
2316 MACSTR
" (cred=%d)", best_prio
, MAC2STR(selected
->bssid
),
2319 dl_list_for_each(bss
, &wpa_s
->bss
, struct wpa_bss
, list
) {
2320 if (bss
== selected
)
2322 cred2
= interworking_credentials_available(wpa_s
, bss
, NULL
);
2325 if (!wpa_bss_get_ie(bss
, WLAN_EID_RSN
))
2327 prio
= roaming_prio(wpa_s
, cred2
, bss
);
2328 wpa_printf(MSG_DEBUG
, "Interworking: roaming_prio=%u for BSS "
2329 MACSTR
" (cred=%d)", prio
, MAC2STR(bss
->bssid
),
2331 if (prio
< best_prio
) {
2332 int bh1
, bh2
, load1
, load2
, conn1
, conn2
;
2333 bh1
= cred_below_min_backhaul(wpa_s
, cred
, selected
);
2334 load1
= cred_over_max_bss_load(wpa_s
, cred
, selected
);
2335 conn1
= cred_conn_capab_missing(wpa_s
, cred
, selected
);
2336 bh2
= cred_below_min_backhaul(wpa_s
, cred2
, bss
);
2337 load2
= cred_over_max_bss_load(wpa_s
, cred2
, bss
);
2338 conn2
= cred_conn_capab_missing(wpa_s
, cred2
, bss
);
2339 wpa_printf(MSG_DEBUG
, "Interworking: old: %d %d %d new: %d %d %d",
2340 bh1
, load1
, conn1
, bh2
, load2
, conn2
);
2341 if (bh1
|| load1
|| conn1
|| !(bh2
|| load2
|| conn2
)) {
2342 wpa_printf(MSG_DEBUG
, "Interworking: Better roaming partner " MACSTR
" selected", MAC2STR(bss
->bssid
));
2353 static void interworking_select_network(struct wpa_supplicant
*wpa_s
)
2355 struct wpa_bss
*bss
, *selected
= NULL
, *selected_home
= NULL
;
2356 struct wpa_bss
*selected2
= NULL
, *selected2_home
= NULL
;
2357 unsigned int count
= 0;
2360 struct wpa_cred
*cred
, *selected_cred
= NULL
;
2361 struct wpa_cred
*selected_home_cred
= NULL
;
2362 struct wpa_cred
*selected2_cred
= NULL
;
2363 struct wpa_cred
*selected2_home_cred
= NULL
;
2365 wpa_s
->network_select
= 0;
2367 wpa_printf(MSG_DEBUG
, "Interworking: Select network (auto_select=%d)",
2368 wpa_s
->auto_select
);
2369 dl_list_for_each(bss
, &wpa_s
->bss
, struct wpa_bss
, list
) {
2371 int bh
, bss_load
, conn_capab
;
2372 cred
= interworking_credentials_available(wpa_s
, bss
,
2377 if (!wpa_bss_get_ie(bss
, WLAN_EID_RSN
)) {
2379 * We currently support only HS 2.0 networks and those
2380 * are required to use WPA2-Enterprise.
2382 wpa_msg(wpa_s
, MSG_DEBUG
,
2383 "Interworking: Credential match with " MACSTR
2384 " but network does not use RSN",
2385 MAC2STR(bss
->bssid
));
2390 res
= interworking_home_sp(wpa_s
, bss
->anqp
?
2391 bss
->anqp
->domain_name
: NULL
);
2398 bh
= cred_below_min_backhaul(wpa_s
, cred
, bss
);
2399 bss_load
= cred_over_max_bss_load(wpa_s
, cred
, bss
);
2400 conn_capab
= cred_conn_capab_missing(wpa_s
, cred
, bss
);
2401 wpa_msg(wpa_s
, MSG_INFO
, "%s" MACSTR
" type=%s%s%s%s id=%d priority=%d sp_priority=%d",
2402 excluded
? INTERWORKING_BLACKLISTED
: INTERWORKING_AP
,
2403 MAC2STR(bss
->bssid
), type
,
2404 bh
? " below_min_backhaul=1" : "",
2405 bss_load
? " over_max_bss_load=1" : "",
2406 conn_capab
? " conn_capab_missing=1" : "",
2407 cred
->id
, cred
->priority
, cred
->sp_priority
);
2410 if (wpa_s
->auto_select
||
2411 (wpa_s
->conf
->auto_interworking
&&
2412 wpa_s
->auto_network_select
)) {
2413 if (bh
|| bss_load
|| conn_capab
) {
2414 if (selected2_cred
== NULL
||
2415 cred_prio_cmp(cred
, selected2_cred
) > 0) {
2416 wpa_printf(MSG_DEBUG
, "Interworking: Mark as selected2");
2418 selected2_cred
= cred
;
2421 (selected2_home_cred
== NULL
||
2422 cred_prio_cmp(cred
, selected2_home_cred
) >
2424 wpa_printf(MSG_DEBUG
, "Interworking: Mark as selected2_home");
2425 selected2_home
= bss
;
2426 selected2_home_cred
= cred
;
2429 if (selected_cred
== NULL
||
2430 cred_prio_cmp(cred
, selected_cred
) > 0) {
2431 wpa_printf(MSG_DEBUG
, "Interworking: Mark as selected");
2433 selected_cred
= cred
;
2436 (selected_home_cred
== NULL
||
2437 cred_prio_cmp(cred
, selected_home_cred
) >
2439 wpa_printf(MSG_DEBUG
, "Interworking: Mark as selected_home");
2440 selected_home
= bss
;
2441 selected_home_cred
= cred
;
2447 if (selected_home
&& selected_home
!= selected
&&
2448 selected_home_cred
&&
2449 (selected_cred
== NULL
||
2450 cred_prio_cmp(selected_home_cred
, selected_cred
) >= 0)) {
2451 /* Prefer network operated by the Home SP */
2452 wpa_printf(MSG_DEBUG
, "Interworking: Overrided selected with selected_home");
2453 selected
= selected_home
;
2454 selected_cred
= selected_home_cred
;
2458 if (selected2_home
) {
2459 wpa_printf(MSG_DEBUG
, "Interworking: Use home BSS with BW limit mismatch since no other network could be selected");
2460 selected
= selected2_home
;
2461 selected_cred
= selected2_home_cred
;
2462 } else if (selected2
) {
2463 wpa_printf(MSG_DEBUG
, "Interworking: Use visited BSS with BW limit mismatch since no other network could be selected");
2464 selected
= selected2
;
2465 selected_cred
= selected2_cred
;
2471 * No matching network was found based on configured
2472 * credentials. Check whether any of the enabled network blocks
2473 * have matching APs.
2475 if (interworking_find_network_match(wpa_s
)) {
2476 wpa_msg(wpa_s
, MSG_DEBUG
,
2477 "Interworking: Possible BSS match for enabled network configurations");
2478 if (wpa_s
->auto_select
) {
2479 interworking_reconnect(wpa_s
);
2484 if (wpa_s
->auto_network_select
) {
2485 wpa_msg(wpa_s
, MSG_DEBUG
,
2486 "Interworking: Continue scanning after ANQP fetch");
2487 wpa_supplicant_req_scan(wpa_s
, wpa_s
->scan_interval
,
2492 wpa_msg(wpa_s
, MSG_INFO
, INTERWORKING_NO_MATCH
"No network "
2493 "with matching credentials found");
2494 if (wpa_s
->wpa_state
== WPA_SCANNING
)
2495 wpa_supplicant_set_state(wpa_s
, WPA_DISCONNECTED
);
2499 wpa_printf(MSG_DEBUG
, "Interworking: Selected " MACSTR
,
2500 MAC2STR(selected
->bssid
));
2501 selected
= pick_best_roaming_partner(wpa_s
, selected
,
2503 wpa_printf(MSG_DEBUG
, "Interworking: Selected " MACSTR
2504 " (after best roaming partner selection)",
2505 MAC2STR(selected
->bssid
));
2506 wpa_msg(wpa_s
, MSG_INFO
, INTERWORKING_SELECTED MACSTR
,
2507 MAC2STR(selected
->bssid
));
2508 interworking_connect(wpa_s
, selected
, 0);
2513 static struct wpa_bss_anqp
*
2514 interworking_match_anqp_info(struct wpa_supplicant
*wpa_s
, struct wpa_bss
*bss
)
2516 struct wpa_bss
*other
;
2518 if (is_zero_ether_addr(bss
->hessid
))
2519 return NULL
; /* Cannot be in the same homegenous ESS */
2521 dl_list_for_each(other
, &wpa_s
->bss
, struct wpa_bss
, list
) {
2524 if (other
->anqp
== NULL
)
2526 if (other
->anqp
->roaming_consortium
== NULL
&&
2527 other
->anqp
->nai_realm
== NULL
&&
2528 other
->anqp
->anqp_3gpp
== NULL
&&
2529 other
->anqp
->domain_name
== NULL
)
2531 if (!(other
->flags
& WPA_BSS_ANQP_FETCH_TRIED
))
2533 if (os_memcmp(bss
->hessid
, other
->hessid
, ETH_ALEN
) != 0)
2535 if (bss
->ssid_len
!= other
->ssid_len
||
2536 os_memcmp(bss
->ssid
, other
->ssid
, bss
->ssid_len
) != 0)
2539 wpa_msg(wpa_s
, MSG_DEBUG
,
2540 "Interworking: Share ANQP data with already fetched BSSID "
2541 MACSTR
" and " MACSTR
,
2542 MAC2STR(other
->bssid
), MAC2STR(bss
->bssid
));
2543 other
->anqp
->users
++;
2551 static void interworking_next_anqp_fetch(struct wpa_supplicant
*wpa_s
)
2553 struct wpa_bss
*bss
;
2557 wpa_printf(MSG_DEBUG
, "Interworking: next_anqp_fetch - "
2558 "fetch_anqp_in_progress=%d fetch_osu_icon_in_progress=%d",
2559 wpa_s
->fetch_anqp_in_progress
,
2560 wpa_s
->fetch_osu_icon_in_progress
);
2562 if (eloop_terminated() || !wpa_s
->fetch_anqp_in_progress
) {
2563 wpa_printf(MSG_DEBUG
, "Interworking: Stop next-ANQP-fetch");
2567 if (wpa_s
->fetch_osu_icon_in_progress
) {
2568 wpa_printf(MSG_DEBUG
, "Interworking: Next icon (in progress)");
2569 hs20_next_osu_icon(wpa_s
);
2573 dl_list_for_each(bss
, &wpa_s
->bss
, struct wpa_bss
, list
) {
2574 if (!(bss
->caps
& IEEE80211_CAP_ESS
))
2576 ie
= wpa_bss_get_ie(bss
, WLAN_EID_EXT_CAPAB
);
2577 if (ie
== NULL
|| ie
[1] < 4 || !(ie
[5] & 0x80))
2578 continue; /* AP does not support Interworking */
2579 if (disallowed_bssid(wpa_s
, bss
->bssid
) ||
2580 disallowed_ssid(wpa_s
, bss
->ssid
, bss
->ssid_len
))
2581 continue; /* Disallowed BSS */
2583 if (!(bss
->flags
& WPA_BSS_ANQP_FETCH_TRIED
)) {
2584 if (bss
->anqp
== NULL
) {
2585 bss
->anqp
= interworking_match_anqp_info(wpa_s
,
2588 /* Shared data already fetched */
2591 bss
->anqp
= wpa_bss_anqp_alloc();
2592 if (bss
->anqp
== NULL
)
2596 bss
->flags
|= WPA_BSS_ANQP_FETCH_TRIED
;
2597 wpa_msg(wpa_s
, MSG_INFO
, "Starting ANQP fetch for "
2598 MACSTR
, MAC2STR(bss
->bssid
));
2599 interworking_anqp_send_req(wpa_s
, bss
);
2605 if (wpa_s
->fetch_osu_info
) {
2606 if (wpa_s
->num_prov_found
== 0 &&
2607 wpa_s
->fetch_osu_waiting_scan
&&
2608 wpa_s
->num_osu_scans
< 3) {
2609 wpa_printf(MSG_DEBUG
, "HS 2.0: No OSU providers seen - try to scan again");
2610 hs20_start_osu_scan(wpa_s
);
2613 wpa_printf(MSG_DEBUG
, "Interworking: Next icon");
2614 hs20_osu_icon_fetch(wpa_s
);
2617 wpa_msg(wpa_s
, MSG_INFO
, "ANQP fetch completed");
2618 wpa_s
->fetch_anqp_in_progress
= 0;
2619 if (wpa_s
->network_select
)
2620 interworking_select_network(wpa_s
);
2625 void interworking_start_fetch_anqp(struct wpa_supplicant
*wpa_s
)
2627 struct wpa_bss
*bss
;
2629 dl_list_for_each(bss
, &wpa_s
->bss
, struct wpa_bss
, list
)
2630 bss
->flags
&= ~WPA_BSS_ANQP_FETCH_TRIED
;
2632 wpa_s
->fetch_anqp_in_progress
= 1;
2635 * Start actual ANQP operation from eloop call to make sure the loop
2636 * does not end up using excessive recursion.
2638 eloop_register_timeout(0, 0, interworking_continue_anqp
, wpa_s
, NULL
);
2642 int interworking_fetch_anqp(struct wpa_supplicant
*wpa_s
)
2644 if (wpa_s
->fetch_anqp_in_progress
|| wpa_s
->network_select
)
2647 wpa_s
->network_select
= 0;
2648 wpa_s
->fetch_all_anqp
= 1;
2649 wpa_s
->fetch_osu_info
= 0;
2651 interworking_start_fetch_anqp(wpa_s
);
2657 void interworking_stop_fetch_anqp(struct wpa_supplicant
*wpa_s
)
2659 if (!wpa_s
->fetch_anqp_in_progress
)
2662 wpa_s
->fetch_anqp_in_progress
= 0;
2666 int anqp_send_req(struct wpa_supplicant
*wpa_s
, const u8
*dst
,
2667 u16 info_ids
[], size_t num_ids
, u32 subtypes
)
2670 struct wpabuf
*hs20_buf
= NULL
;
2673 struct wpa_bss
*bss
;
2676 freq
= wpa_s
->assoc_freq
;
2677 bss
= wpa_bss_get_bssid(wpa_s
, dst
);
2679 wpa_bss_anqp_unshare_alloc(bss
);
2685 wpa_msg(wpa_s
, MSG_DEBUG
,
2686 "ANQP: Query Request to " MACSTR
" for %u id(s)",
2687 MAC2STR(dst
), (unsigned int) num_ids
);
2690 if (subtypes
!= 0) {
2691 hs20_buf
= wpabuf_alloc(100);
2692 if (hs20_buf
== NULL
)
2694 hs20_put_anqp_req(subtypes
, NULL
, 0, hs20_buf
);
2696 #endif /* CONFIG_HS20 */
2698 buf
= anqp_build_req(info_ids
, num_ids
, hs20_buf
);
2699 wpabuf_free(hs20_buf
);
2703 res
= gas_query_req(wpa_s
->gas
, dst
, freq
, buf
, anqp_resp_cb
, wpa_s
);
2705 wpa_msg(wpa_s
, MSG_DEBUG
, "ANQP: Failed to send Query Request");
2709 wpa_msg(wpa_s
, MSG_DEBUG
,
2710 "ANQP: Query started with dialog token %u", res
);
2717 static void interworking_parse_rx_anqp_resp(struct wpa_supplicant
*wpa_s
,
2718 struct wpa_bss
*bss
, const u8
*sa
,
2720 const u8
*data
, size_t slen
)
2722 const u8
*pos
= data
;
2723 struct wpa_bss_anqp
*anqp
= NULL
;
2726 #endif /* CONFIG_HS20 */
2732 case ANQP_CAPABILITY_LIST
:
2733 wpa_msg(wpa_s
, MSG_INFO
, "RX-ANQP " MACSTR
2734 " ANQP Capability list", MAC2STR(sa
));
2735 wpa_hexdump_ascii(MSG_DEBUG
, "ANQP: Capability list",
2738 wpabuf_free(anqp
->capability_list
);
2739 anqp
->capability_list
= wpabuf_alloc_copy(pos
, slen
);
2742 case ANQP_VENUE_NAME
:
2743 wpa_msg(wpa_s
, MSG_INFO
, "RX-ANQP " MACSTR
2744 " Venue Name", MAC2STR(sa
));
2745 wpa_hexdump_ascii(MSG_DEBUG
, "ANQP: Venue Name", pos
, slen
);
2747 wpabuf_free(anqp
->venue_name
);
2748 anqp
->venue_name
= wpabuf_alloc_copy(pos
, slen
);
2751 case ANQP_NETWORK_AUTH_TYPE
:
2752 wpa_msg(wpa_s
, MSG_INFO
, "RX-ANQP " MACSTR
2753 " Network Authentication Type information",
2755 wpa_hexdump_ascii(MSG_DEBUG
, "ANQP: Network Authentication "
2758 wpabuf_free(anqp
->network_auth_type
);
2759 anqp
->network_auth_type
= wpabuf_alloc_copy(pos
, slen
);
2762 case ANQP_ROAMING_CONSORTIUM
:
2763 wpa_msg(wpa_s
, MSG_INFO
, "RX-ANQP " MACSTR
2764 " Roaming Consortium list", MAC2STR(sa
));
2765 wpa_hexdump_ascii(MSG_DEBUG
, "ANQP: Roaming Consortium",
2768 wpabuf_free(anqp
->roaming_consortium
);
2769 anqp
->roaming_consortium
= wpabuf_alloc_copy(pos
, slen
);
2772 case ANQP_IP_ADDR_TYPE_AVAILABILITY
:
2773 wpa_msg(wpa_s
, MSG_INFO
, "RX-ANQP " MACSTR
2774 " IP Address Type Availability information",
2776 wpa_hexdump(MSG_MSGDUMP
, "ANQP: IP Address Availability",
2779 wpabuf_free(anqp
->ip_addr_type_availability
);
2780 anqp
->ip_addr_type_availability
=
2781 wpabuf_alloc_copy(pos
, slen
);
2784 case ANQP_NAI_REALM
:
2785 wpa_msg(wpa_s
, MSG_INFO
, "RX-ANQP " MACSTR
2786 " NAI Realm list", MAC2STR(sa
));
2787 wpa_hexdump_ascii(MSG_DEBUG
, "ANQP: NAI Realm", pos
, slen
);
2789 wpabuf_free(anqp
->nai_realm
);
2790 anqp
->nai_realm
= wpabuf_alloc_copy(pos
, slen
);
2793 case ANQP_3GPP_CELLULAR_NETWORK
:
2794 wpa_msg(wpa_s
, MSG_INFO
, "RX-ANQP " MACSTR
2795 " 3GPP Cellular Network information", MAC2STR(sa
));
2796 wpa_hexdump_ascii(MSG_DEBUG
, "ANQP: 3GPP Cellular Network",
2799 wpabuf_free(anqp
->anqp_3gpp
);
2800 anqp
->anqp_3gpp
= wpabuf_alloc_copy(pos
, slen
);
2803 case ANQP_DOMAIN_NAME
:
2804 wpa_msg(wpa_s
, MSG_INFO
, "RX-ANQP " MACSTR
2805 " Domain Name list", MAC2STR(sa
));
2806 wpa_hexdump_ascii(MSG_MSGDUMP
, "ANQP: Domain Name", pos
, slen
);
2808 wpabuf_free(anqp
->domain_name
);
2809 anqp
->domain_name
= wpabuf_alloc_copy(pos
, slen
);
2812 case ANQP_VENDOR_SPECIFIC
:
2816 switch (WPA_GET_BE24(pos
)) {
2828 case HS20_ANQP_OUI_TYPE
:
2829 hs20_parse_rx_hs20_anqp_resp(wpa_s
, bss
, sa
,
2833 wpa_msg(wpa_s
, MSG_DEBUG
,
2834 "HS20: Unsupported ANQP vendor type %u",
2839 #endif /* CONFIG_HS20 */
2841 wpa_msg(wpa_s
, MSG_DEBUG
,
2842 "Interworking: Unsupported vendor-specific ANQP OUI %06x",
2848 wpa_msg(wpa_s
, MSG_DEBUG
,
2849 "Interworking: Unsupported ANQP Info ID %u", info_id
);
2855 void anqp_resp_cb(void *ctx
, const u8
*dst
, u8 dialog_token
,
2856 enum gas_query_result result
,
2857 const struct wpabuf
*adv_proto
,
2858 const struct wpabuf
*resp
, u16 status_code
)
2860 struct wpa_supplicant
*wpa_s
= ctx
;
2865 struct wpa_bss
*bss
= NULL
, *tmp
;
2866 const char *anqp_result
= "SUCCESS";
2868 wpa_printf(MSG_DEBUG
, "Interworking: anqp_resp_cb dst=" MACSTR
2869 " dialog_token=%u result=%d status_code=%u",
2870 MAC2STR(dst
), dialog_token
, result
, status_code
);
2871 if (result
!= GAS_QUERY_SUCCESS
) {
2872 if (wpa_s
->fetch_osu_icon_in_progress
)
2873 hs20_icon_fetch_failed(wpa_s
);
2874 anqp_result
= "FAILURE";
2878 pos
= wpabuf_head(adv_proto
);
2879 if (wpabuf_len(adv_proto
) < 4 || pos
[0] != WLAN_EID_ADV_PROTO
||
2880 pos
[1] < 2 || pos
[3] != ACCESS_NETWORK_QUERY_PROTOCOL
) {
2881 wpa_msg(wpa_s
, MSG_DEBUG
,
2882 "ANQP: Unexpected Advertisement Protocol in response");
2883 if (wpa_s
->fetch_osu_icon_in_progress
)
2884 hs20_icon_fetch_failed(wpa_s
);
2885 anqp_result
= "INVALID_FRAME";
2890 * If possible, select the BSS entry based on which BSS entry was used
2891 * for the request. This can help in cases where multiple BSS entries
2892 * may exist for the same AP.
2894 dl_list_for_each_reverse(tmp
, &wpa_s
->bss
, struct wpa_bss
, list
) {
2895 if (tmp
== wpa_s
->interworking_gas_bss
&&
2896 os_memcmp(tmp
->bssid
, dst
, ETH_ALEN
) == 0) {
2902 bss
= wpa_bss_get_bssid(wpa_s
, dst
);
2904 pos
= wpabuf_head(resp
);
2905 end
= pos
+ wpabuf_len(resp
);
2908 unsigned int left
= end
- pos
;
2911 wpa_msg(wpa_s
, MSG_DEBUG
, "ANQP: Invalid element");
2912 anqp_result
= "INVALID_FRAME";
2913 goto out_parse_done
;
2915 info_id
= WPA_GET_LE16(pos
);
2917 slen
= WPA_GET_LE16(pos
);
2921 wpa_msg(wpa_s
, MSG_DEBUG
,
2922 "ANQP: Invalid element length for Info ID %u",
2924 anqp_result
= "INVALID_FRAME";
2925 goto out_parse_done
;
2927 interworking_parse_rx_anqp_resp(wpa_s
, bss
, dst
, info_id
, pos
,
2933 hs20_notify_parse_done(wpa_s
);
2935 wpa_msg(wpa_s
, MSG_INFO
, ANQP_QUERY_DONE
"addr=" MACSTR
" result=%s",
2936 MAC2STR(dst
), anqp_result
);
2940 static void interworking_scan_res_handler(struct wpa_supplicant
*wpa_s
,
2941 struct wpa_scan_results
*scan_res
)
2943 wpa_msg(wpa_s
, MSG_DEBUG
,
2944 "Interworking: Scan results available - start ANQP fetch");
2945 interworking_start_fetch_anqp(wpa_s
);
2949 int interworking_select(struct wpa_supplicant
*wpa_s
, int auto_select
,
2952 interworking_stop_fetch_anqp(wpa_s
);
2953 wpa_s
->network_select
= 1;
2954 wpa_s
->auto_network_select
= 0;
2955 wpa_s
->auto_select
= !!auto_select
;
2956 wpa_s
->fetch_all_anqp
= 0;
2957 wpa_s
->fetch_osu_info
= 0;
2958 wpa_msg(wpa_s
, MSG_DEBUG
,
2959 "Interworking: Start scan for network selection");
2960 wpa_s
->scan_res_handler
= interworking_scan_res_handler
;
2961 wpa_s
->normal_scans
= 0;
2962 wpa_s
->scan_req
= MANUAL_SCAN_REQ
;
2963 os_free(wpa_s
->manual_scan_freqs
);
2964 wpa_s
->manual_scan_freqs
= freqs
;
2965 wpa_s
->after_wps
= 0;
2966 wpa_s
->known_wps_freq
= 0;
2967 wpa_supplicant_req_scan(wpa_s
, 0, 0);
2973 static void gas_resp_cb(void *ctx
, const u8
*addr
, u8 dialog_token
,
2974 enum gas_query_result result
,
2975 const struct wpabuf
*adv_proto
,
2976 const struct wpabuf
*resp
, u16 status_code
)
2978 struct wpa_supplicant
*wpa_s
= ctx
;
2981 wpa_msg(wpa_s
, MSG_INFO
, GAS_RESPONSE_INFO
"addr=" MACSTR
2982 " dialog_token=%d status_code=%d resp_len=%d",
2983 MAC2STR(addr
), dialog_token
, status_code
,
2984 resp
? (int) wpabuf_len(resp
) : -1);
2988 n
= wpabuf_dup(resp
);
2991 wpabuf_free(wpa_s
->prev_gas_resp
);
2992 wpa_s
->prev_gas_resp
= wpa_s
->last_gas_resp
;
2993 os_memcpy(wpa_s
->prev_gas_addr
, wpa_s
->last_gas_addr
, ETH_ALEN
);
2994 wpa_s
->prev_gas_dialog_token
= wpa_s
->last_gas_dialog_token
;
2995 wpa_s
->last_gas_resp
= n
;
2996 os_memcpy(wpa_s
->last_gas_addr
, addr
, ETH_ALEN
);
2997 wpa_s
->last_gas_dialog_token
= dialog_token
;
3001 int gas_send_request(struct wpa_supplicant
*wpa_s
, const u8
*dst
,
3002 const struct wpabuf
*adv_proto
,
3003 const struct wpabuf
*query
)
3008 struct wpa_bss
*bss
;
3011 u8 query_resp_len_limit
= 0;
3013 freq
= wpa_s
->assoc_freq
;
3014 bss
= wpa_bss_get_bssid(wpa_s
, dst
);
3020 wpa_msg(wpa_s
, MSG_DEBUG
, "GAS request to " MACSTR
" (freq %d MHz)",
3021 MAC2STR(dst
), freq
);
3022 wpa_hexdump_buf(MSG_DEBUG
, "Advertisement Protocol ID", adv_proto
);
3023 wpa_hexdump_buf(MSG_DEBUG
, "GAS Query", query
);
3025 len
= 3 + wpabuf_len(adv_proto
) + 2;
3027 len
+= wpabuf_len(query
);
3028 buf
= gas_build_initial_req(0, len
);
3032 /* Advertisement Protocol IE */
3033 wpabuf_put_u8(buf
, WLAN_EID_ADV_PROTO
);
3034 wpabuf_put_u8(buf
, 1 + wpabuf_len(adv_proto
)); /* Length */
3035 wpabuf_put_u8(buf
, query_resp_len_limit
& 0x7f);
3036 wpabuf_put_buf(buf
, adv_proto
);
3040 wpabuf_put_le16(buf
, wpabuf_len(query
));
3041 wpabuf_put_buf(buf
, query
);
3043 wpabuf_put_le16(buf
, 0);
3045 res
= gas_query_req(wpa_s
->gas
, dst
, freq
, buf
, gas_resp_cb
, wpa_s
);
3047 wpa_msg(wpa_s
, MSG_DEBUG
, "GAS: Failed to send Query Request");
3051 wpa_msg(wpa_s
, MSG_DEBUG
,
3052 "GAS: Query started with dialog token %u", res
);