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
;
1520 if (wpa_s
->conf
->cred
== NULL
|| bss
== NULL
)
1522 if (disallowed_bssid(wpa_s
, bss
->bssid
) ||
1523 disallowed_ssid(wpa_s
, bss
->ssid
, bss
->ssid_len
)) {
1524 wpa_printf(MSG_DEBUG
, "Interworking: Reject connection to disallowed BSS "
1525 MACSTR
, MAC2STR(bss
->bssid
));
1529 wpa_printf(MSG_DEBUG
, "Interworking: Considering BSS " MACSTR
1530 " for connection (allow_excluded=%d)",
1531 MAC2STR(bss
->bssid
), allow_excluded
);
1533 if (!wpa_bss_get_ie(bss
, WLAN_EID_RSN
)) {
1535 * We currently support only HS 2.0 networks and those are
1536 * required to use WPA2-Enterprise.
1538 wpa_printf(MSG_DEBUG
, "Interworking: Network does not use "
1543 cred_rc
= interworking_credentials_available_roaming_consortium(
1544 wpa_s
, bss
, 0, excl
);
1546 wpa_printf(MSG_DEBUG
, "Interworking: Highest roaming "
1547 "consortium matching credential priority %d "
1549 cred_rc
->priority
, cred_rc
->sp_priority
);
1550 if (allow_excluded
&& excl
&& !(*excl
))
1554 cred
= interworking_credentials_available_realm(wpa_s
, bss
, 0, excl
);
1556 wpa_printf(MSG_DEBUG
, "Interworking: Highest NAI Realm list "
1557 "matching credential priority %d sp_priority %d",
1558 cred
->priority
, cred
->sp_priority
);
1559 if (allow_excluded
&& excl
&& !(*excl
))
1563 cred_3gpp
= interworking_credentials_available_3gpp(wpa_s
, bss
, 0,
1566 wpa_printf(MSG_DEBUG
, "Interworking: Highest 3GPP matching "
1567 "credential priority %d sp_priority %d",
1568 cred_3gpp
->priority
, cred_3gpp
->sp_priority
);
1569 if (allow_excluded
&& excl
&& !(*excl
))
1573 if (!cred_rc
&& !cred
&& !cred_3gpp
) {
1574 wpa_printf(MSG_DEBUG
, "Interworking: No full credential matches - consider options without BW(etc.) limits");
1575 cred_rc
= interworking_credentials_available_roaming_consortium(
1576 wpa_s
, bss
, 1, excl
);
1578 wpa_printf(MSG_DEBUG
, "Interworking: Highest roaming "
1579 "consortium matching credential priority %d "
1580 "sp_priority %d (ignore BW)",
1581 cred_rc
->priority
, cred_rc
->sp_priority
);
1582 if (allow_excluded
&& excl
&& !(*excl
))
1586 cred
= interworking_credentials_available_realm(wpa_s
, bss
, 1,
1589 wpa_printf(MSG_DEBUG
, "Interworking: Highest NAI Realm "
1590 "list matching credential priority %d "
1591 "sp_priority %d (ignore BW)",
1592 cred
->priority
, cred
->sp_priority
);
1593 if (allow_excluded
&& excl
&& !(*excl
))
1597 cred_3gpp
= interworking_credentials_available_3gpp(wpa_s
, bss
,
1600 wpa_printf(MSG_DEBUG
, "Interworking: Highest 3GPP "
1601 "matching credential priority %d "
1602 "sp_priority %d (ignore BW)",
1603 cred_3gpp
->priority
, cred_3gpp
->sp_priority
);
1604 if (allow_excluded
&& excl
&& !(*excl
))
1610 (cred
== NULL
|| cred_prio_cmp(cred_rc
, cred
) >= 0) &&
1611 (cred_3gpp
== NULL
|| cred_prio_cmp(cred_rc
, cred_3gpp
) >= 0))
1612 return interworking_connect_roaming_consortium(wpa_s
, cred_rc
,
1616 (cred
== NULL
|| cred_prio_cmp(cred_3gpp
, cred
) >= 0)) {
1617 return interworking_connect_3gpp(wpa_s
, cred_3gpp
, bss
);
1621 wpa_printf(MSG_DEBUG
, "Interworking: No matching credentials "
1622 "found for " MACSTR
, MAC2STR(bss
->bssid
));
1626 realm
= nai_realm_parse(bss
->anqp
? bss
->anqp
->nai_realm
: NULL
,
1628 if (realm
== NULL
) {
1629 wpa_printf(MSG_DEBUG
, "Interworking: Could not parse NAI "
1630 "Realm list from " MACSTR
, MAC2STR(bss
->bssid
));
1634 for (i
= 0; i
< count
; i
++) {
1635 if (!nai_realm_match(&realm
[i
], cred
->realm
))
1637 eap
= nai_realm_find_eap(cred
, &realm
[i
]);
1643 wpa_printf(MSG_DEBUG
, "Interworking: No matching credentials "
1644 "and EAP method found for " MACSTR
,
1645 MAC2STR(bss
->bssid
));
1646 nai_realm_free(realm
, count
);
1650 wpa_printf(MSG_DEBUG
, "Interworking: Connect with " MACSTR
,
1651 MAC2STR(bss
->bssid
));
1653 if (already_connected(wpa_s
, cred
, bss
)) {
1654 wpa_msg(wpa_s
, MSG_INFO
, INTERWORKING_ALREADY_CONNECTED MACSTR
,
1655 MAC2STR(bss
->bssid
));
1656 nai_realm_free(realm
, count
);
1660 remove_duplicate_network(wpa_s
, cred
, bss
);
1662 ssid
= wpa_config_add_network(wpa_s
->conf
);
1664 nai_realm_free(realm
, count
);
1667 ssid
->parent_cred
= cred
;
1668 wpas_notify_network_added(wpa_s
, ssid
);
1669 wpa_config_set_network_defaults(ssid
);
1670 ssid
->priority
= cred
->priority
;
1671 ssid
->temporary
= 1;
1672 ssid
->ssid
= os_zalloc(bss
->ssid_len
+ 1);
1673 if (ssid
->ssid
== NULL
)
1675 os_memcpy(ssid
->ssid
, bss
->ssid
, bss
->ssid_len
);
1676 ssid
->ssid_len
= bss
->ssid_len
;
1678 if (interworking_set_hs20_params(wpa_s
, ssid
) < 0)
1681 if (wpa_config_set(ssid
, "eap", eap_get_name(EAP_VENDOR_IETF
,
1682 eap
->method
), 0) < 0)
1685 switch (eap
->method
) {
1687 if (eap
->inner_method
) {
1688 os_snprintf(buf
, sizeof(buf
), "\"autheap=%s\"",
1689 eap_get_name(EAP_VENDOR_IETF
,
1690 eap
->inner_method
));
1691 if (wpa_config_set(ssid
, "phase2", buf
, 0) < 0)
1695 switch (eap
->inner_non_eap
) {
1696 case NAI_REALM_INNER_NON_EAP_PAP
:
1697 if (wpa_config_set(ssid
, "phase2", "\"auth=PAP\"", 0) <
1701 case NAI_REALM_INNER_NON_EAP_CHAP
:
1702 if (wpa_config_set(ssid
, "phase2", "\"auth=CHAP\"", 0)
1706 case NAI_REALM_INNER_NON_EAP_MSCHAP
:
1707 if (wpa_config_set(ssid
, "phase2", "\"auth=MSCHAP\"",
1711 case NAI_REALM_INNER_NON_EAP_MSCHAPV2
:
1712 if (wpa_config_set(ssid
, "phase2", "\"auth=MSCHAPV2\"",
1717 /* EAP params were not set - assume TTLS/MSCHAPv2 */
1718 if (wpa_config_set(ssid
, "phase2", "\"auth=MSCHAPV2\"",
1726 if (wpa_config_set(ssid
, "phase1", "\"fast_provisioning=2\"",
1729 if (wpa_config_set(ssid
, "pac_file",
1730 "\"blob://pac_interworking\"", 0) < 0)
1732 name
= eap_get_name(EAP_VENDOR_IETF
,
1733 eap
->inner_method
? eap
->inner_method
:
1737 os_snprintf(buf
, sizeof(buf
), "\"auth=%s\"", name
);
1738 if (wpa_config_set(ssid
, "phase2", buf
, 0) < 0)
1745 if (interworking_set_eap_params(ssid
, cred
,
1746 eap
->method
== EAP_TYPE_TTLS
) < 0)
1749 nai_realm_free(realm
, count
);
1751 wpa_s
->next_ssid
= ssid
;
1752 wpa_config_update_prio_list(wpa_s
->conf
);
1753 interworking_reconnect(wpa_s
);
1758 wpas_notify_network_removed(wpa_s
, ssid
);
1759 wpa_config_remove_network(wpa_s
->conf
, ssid
->id
);
1760 nai_realm_free(realm
, count
);
1765 int interworking_connect(struct wpa_supplicant
*wpa_s
, struct wpa_bss
*bss
)
1767 return interworking_connect_helper(wpa_s
, bss
, 1);
1772 static int interworking_pcsc_read_imsi(struct wpa_supplicant
*wpa_s
)
1776 if (wpa_s
->imsi
[0] && wpa_s
->mnc_len
)
1779 len
= sizeof(wpa_s
->imsi
) - 1;
1780 if (scard_get_imsi(wpa_s
->scard
, wpa_s
->imsi
, &len
)) {
1781 scard_deinit(wpa_s
->scard
);
1782 wpa_s
->scard
= NULL
;
1783 wpa_msg(wpa_s
, MSG_ERROR
, "Could not read IMSI");
1786 wpa_s
->imsi
[len
] = '\0';
1787 wpa_s
->mnc_len
= scard_get_mnc_len(wpa_s
->scard
);
1788 wpa_printf(MSG_DEBUG
, "SCARD: IMSI %s (MNC length %d)",
1789 wpa_s
->imsi
, wpa_s
->mnc_len
);
1793 #endif /* PCSC_FUNCS */
1796 static struct wpa_cred
* interworking_credentials_available_3gpp(
1797 struct wpa_supplicant
*wpa_s
, struct wpa_bss
*bss
, int ignore_bw
,
1800 struct wpa_cred
*selected
= NULL
;
1801 #ifdef INTERWORKING_3GPP
1802 struct wpa_cred
*cred
;
1804 int is_excluded
= 0;
1806 if (bss
->anqp
== NULL
|| bss
->anqp
->anqp_3gpp
== NULL
)
1809 #ifdef CONFIG_EAP_PROXY
1810 if (!wpa_s
->imsi
[0]) {
1812 wpa_printf(MSG_DEBUG
, "Interworking: IMSI not available - try to read again through eap_proxy");
1813 wpa_s
->mnc_len
= eapol_sm_get_eap_proxy_imsi(wpa_s
->eapol
,
1816 if (wpa_s
->mnc_len
> 0) {
1817 wpa_s
->imsi
[len
] = '\0';
1818 wpa_printf(MSG_DEBUG
, "eap_proxy: IMSI %s (MNC length %d)",
1819 wpa_s
->imsi
, wpa_s
->mnc_len
);
1821 wpa_printf(MSG_DEBUG
, "eap_proxy: IMSI not available");
1824 #endif /* CONFIG_EAP_PROXY */
1826 for (cred
= wpa_s
->conf
->cred
; cred
; cred
= cred
->next
) {
1834 if (cred
->pcsc
&& wpa_s
->scard
) {
1835 if (interworking_pcsc_read_imsi(wpa_s
) < 0)
1838 mnc_len
= wpa_s
->mnc_len
;
1841 #endif /* PCSC_FUNCS */
1842 #ifdef CONFIG_EAP_PROXY
1843 if (cred
->pcsc
&& wpa_s
->mnc_len
> 0 && wpa_s
->imsi
[0]) {
1845 mnc_len
= wpa_s
->mnc_len
;
1848 #endif /* CONFIG_EAP_PROXY */
1850 if (cred
->imsi
== NULL
|| !cred
->imsi
[0] ||
1851 (!wpa_s
->conf
->external_sim
&&
1852 (cred
->milenage
== NULL
|| !cred
->milenage
[0])))
1855 sep
= os_strchr(cred
->imsi
, '-');
1857 (sep
- cred
->imsi
!= 5 && sep
- cred
->imsi
!= 6))
1859 mnc_len
= sep
- cred
->imsi
- 3;
1860 os_memcpy(imsi_buf
, cred
->imsi
, 3 + mnc_len
);
1862 msin_len
= os_strlen(cred
->imsi
);
1863 if (3 + mnc_len
+ msin_len
>= sizeof(imsi_buf
) - 1)
1864 msin_len
= sizeof(imsi_buf
) - 3 - mnc_len
- 1;
1865 os_memcpy(&imsi_buf
[3 + mnc_len
], sep
, msin_len
);
1866 imsi_buf
[3 + mnc_len
+ msin_len
] = '\0';
1869 #if defined(PCSC_FUNCS) || defined(CONFIG_EAP_PROXY)
1871 #endif /* PCSC_FUNCS || CONFIG_EAP_PROXY */
1872 wpa_printf(MSG_DEBUG
, "Interworking: Parsing 3GPP info from "
1873 MACSTR
, MAC2STR(bss
->bssid
));
1874 ret
= plmn_id_match(bss
->anqp
->anqp_3gpp
, imsi
, mnc_len
);
1875 wpa_printf(MSG_DEBUG
, "PLMN match %sfound", ret
? "" : "not ");
1877 if (cred_no_required_oi_match(cred
, bss
))
1880 cred_below_min_backhaul(wpa_s
, cred
, bss
))
1883 cred_over_max_bss_load(wpa_s
, cred
, bss
))
1886 cred_conn_capab_missing(wpa_s
, cred
, bss
))
1888 if (cred_excluded_ssid(cred
, bss
)) {
1889 if (excluded
== NULL
)
1891 if (selected
== NULL
) {
1896 if (selected
== NULL
|| is_excluded
||
1897 cred_prio_cmp(selected
, cred
) < 0) {
1906 *excluded
= is_excluded
;
1907 #endif /* INTERWORKING_3GPP */
1912 static struct wpa_cred
* interworking_credentials_available_realm(
1913 struct wpa_supplicant
*wpa_s
, struct wpa_bss
*bss
, int ignore_bw
,
1916 struct wpa_cred
*cred
, *selected
= NULL
;
1917 struct nai_realm
*realm
;
1919 int is_excluded
= 0;
1921 if (bss
->anqp
== NULL
|| bss
->anqp
->nai_realm
== NULL
)
1924 if (wpa_s
->conf
->cred
== NULL
)
1927 wpa_printf(MSG_DEBUG
, "Interworking: Parsing NAI Realm list from "
1928 MACSTR
, MAC2STR(bss
->bssid
));
1929 realm
= nai_realm_parse(bss
->anqp
->nai_realm
, &count
);
1930 if (realm
== NULL
) {
1931 wpa_printf(MSG_DEBUG
, "Interworking: Could not parse NAI "
1932 "Realm list from " MACSTR
, MAC2STR(bss
->bssid
));
1936 for (cred
= wpa_s
->conf
->cred
; cred
; cred
= cred
->next
) {
1937 if (cred
->realm
== NULL
)
1940 for (i
= 0; i
< count
; i
++) {
1941 if (!nai_realm_match(&realm
[i
], cred
->realm
))
1943 if (nai_realm_find_eap(cred
, &realm
[i
])) {
1944 if (cred_no_required_oi_match(cred
, bss
))
1947 cred_below_min_backhaul(wpa_s
, cred
, bss
))
1950 cred_over_max_bss_load(wpa_s
, cred
, bss
))
1953 cred_conn_capab_missing(wpa_s
, cred
, bss
))
1955 if (cred_excluded_ssid(cred
, bss
)) {
1956 if (excluded
== NULL
)
1958 if (selected
== NULL
) {
1963 if (selected
== NULL
|| is_excluded
||
1964 cred_prio_cmp(selected
, cred
) < 0)
1975 nai_realm_free(realm
, count
);
1978 *excluded
= is_excluded
;
1984 static struct wpa_cred
* interworking_credentials_available_helper(
1985 struct wpa_supplicant
*wpa_s
, struct wpa_bss
*bss
, int ignore_bw
,
1988 struct wpa_cred
*cred
, *cred2
;
1989 int excluded1
, excluded2
;
1991 if (disallowed_bssid(wpa_s
, bss
->bssid
) ||
1992 disallowed_ssid(wpa_s
, bss
->ssid
, bss
->ssid_len
)) {
1993 wpa_printf(MSG_DEBUG
, "Interworking: Ignore disallowed BSS "
1994 MACSTR
, MAC2STR(bss
->bssid
));
1998 cred
= interworking_credentials_available_realm(wpa_s
, bss
, ignore_bw
,
2000 cred2
= interworking_credentials_available_3gpp(wpa_s
, bss
, ignore_bw
,
2002 if (cred
&& cred2
&&
2003 (cred_prio_cmp(cred2
, cred
) >= 0 || (!excluded2
&& excluded1
))) {
2005 excluded1
= excluded2
;
2009 excluded1
= excluded2
;
2012 cred2
= interworking_credentials_available_roaming_consortium(
2013 wpa_s
, bss
, ignore_bw
, &excluded2
);
2014 if (cred
&& cred2
&&
2015 (cred_prio_cmp(cred2
, cred
) >= 0 || (!excluded2
&& excluded1
))) {
2017 excluded1
= excluded2
;
2021 excluded1
= excluded2
;
2025 *excluded
= excluded1
;
2030 static struct wpa_cred
* interworking_credentials_available(
2031 struct wpa_supplicant
*wpa_s
, struct wpa_bss
*bss
, int *excluded
)
2033 struct wpa_cred
*cred
;
2037 cred
= interworking_credentials_available_helper(wpa_s
, bss
, 0,
2041 return interworking_credentials_available_helper(wpa_s
, bss
, 1,
2046 int domain_name_list_contains(struct wpabuf
*domain_names
,
2047 const char *domain
, int exact_match
)
2049 const u8
*pos
, *end
;
2052 len
= os_strlen(domain
);
2053 pos
= wpabuf_head(domain_names
);
2054 end
= pos
+ wpabuf_len(domain_names
);
2056 while (pos
+ 1 < end
) {
2057 if (pos
+ 1 + pos
[0] > end
)
2060 wpa_hexdump_ascii(MSG_DEBUG
, "Interworking: AP domain name",
2062 if (pos
[0] == len
&&
2063 os_strncasecmp(domain
, (const char *) (pos
+ 1), len
) == 0)
2065 if (!exact_match
&& pos
[0] > len
&& pos
[pos
[0] - len
] == '.') {
2066 const char *ap
= (const char *) (pos
+ 1);
2067 int offset
= pos
[0] - len
;
2068 if (os_strncasecmp(domain
, ap
+ offset
, len
) == 0)
2079 int interworking_home_sp_cred(struct wpa_supplicant
*wpa_s
,
2080 struct wpa_cred
*cred
,
2081 struct wpabuf
*domain_names
)
2085 #ifdef INTERWORKING_3GPP
2086 char nai
[100], *realm
;
2093 else if (cred
->pcsc
&& wpa_s
->scard
) {
2094 if (interworking_pcsc_read_imsi(wpa_s
) < 0)
2097 mnc_len
= wpa_s
->mnc_len
;
2099 #endif /* PCSC_FUNCS */
2100 #ifdef CONFIG_EAP_PROXY
2101 else if (cred
->pcsc
&& wpa_s
->mnc_len
> 0 && wpa_s
->imsi
[0]) {
2103 mnc_len
= wpa_s
->mnc_len
;
2105 #endif /* CONFIG_EAP_PROXY */
2107 imsi
&& build_root_nai(nai
, sizeof(nai
), imsi
, mnc_len
, 0) == 0) {
2108 realm
= os_strchr(nai
, '@');
2111 wpa_printf(MSG_DEBUG
, "Interworking: Search for match "
2112 "with SIM/USIM domain %s", realm
);
2114 domain_name_list_contains(domain_names
, realm
, 1))
2119 #endif /* INTERWORKING_3GPP */
2121 if (domain_names
== NULL
|| cred
->domain
== NULL
)
2124 for (i
= 0; i
< cred
->num_domain
; i
++) {
2125 wpa_printf(MSG_DEBUG
, "Interworking: Search for match with "
2126 "home SP FQDN %s", cred
->domain
[i
]);
2127 if (domain_name_list_contains(domain_names
, cred
->domain
[i
], 1))
2135 static int interworking_home_sp(struct wpa_supplicant
*wpa_s
,
2136 struct wpabuf
*domain_names
)
2138 struct wpa_cred
*cred
;
2140 if (domain_names
== NULL
|| wpa_s
->conf
->cred
== NULL
)
2143 for (cred
= wpa_s
->conf
->cred
; cred
; cred
= cred
->next
) {
2144 int res
= interworking_home_sp_cred(wpa_s
, cred
, domain_names
);
2153 static int interworking_find_network_match(struct wpa_supplicant
*wpa_s
)
2155 struct wpa_bss
*bss
;
2156 struct wpa_ssid
*ssid
;
2158 dl_list_for_each(bss
, &wpa_s
->bss
, struct wpa_bss
, list
) {
2159 for (ssid
= wpa_s
->conf
->ssid
; ssid
; ssid
= ssid
->next
) {
2160 if (wpas_network_disabled(wpa_s
, ssid
) ||
2161 ssid
->mode
!= WPAS_MODE_INFRA
)
2163 if (ssid
->ssid_len
!= bss
->ssid_len
||
2164 os_memcmp(ssid
->ssid
, bss
->ssid
, ssid
->ssid_len
) !=
2168 * TODO: Consider more accurate matching of security
2169 * configuration similarly to what is done in events.c
2179 static int roaming_partner_match(struct wpa_supplicant
*wpa_s
,
2180 struct roaming_partner
*partner
,
2181 struct wpabuf
*domain_names
)
2183 wpa_printf(MSG_DEBUG
, "Interworking: Comparing roaming_partner info fqdn='%s' exact_match=%d priority=%u country='%s'",
2184 partner
->fqdn
, partner
->exact_match
, partner
->priority
,
2186 wpa_hexdump_ascii(MSG_DEBUG
, "Interworking: Domain names",
2187 wpabuf_head(domain_names
),
2188 wpabuf_len(domain_names
));
2189 if (!domain_name_list_contains(domain_names
, partner
->fqdn
,
2190 partner
->exact_match
))
2192 /* TODO: match Country */
2197 static u8
roaming_prio(struct wpa_supplicant
*wpa_s
, struct wpa_cred
*cred
,
2198 struct wpa_bss
*bss
)
2202 if (bss
->anqp
== NULL
|| bss
->anqp
->domain_name
== NULL
) {
2203 wpa_printf(MSG_DEBUG
, "Interworking: No ANQP domain name info -> use default roaming partner priority 128");
2204 return 128; /* cannot check preference with domain name */
2207 if (interworking_home_sp_cred(wpa_s
, cred
, bss
->anqp
->domain_name
) > 0)
2209 wpa_printf(MSG_DEBUG
, "Interworking: Determined to be home SP -> use maximum preference 0 as roaming partner priority");
2210 return 0; /* max preference for home SP network */
2213 for (i
= 0; i
< cred
->num_roaming_partner
; i
++) {
2214 if (roaming_partner_match(wpa_s
, &cred
->roaming_partner
[i
],
2215 bss
->anqp
->domain_name
)) {
2216 wpa_printf(MSG_DEBUG
, "Interworking: Roaming partner preference match - priority %u",
2217 cred
->roaming_partner
[i
].priority
);
2218 return cred
->roaming_partner
[i
].priority
;
2222 wpa_printf(MSG_DEBUG
, "Interworking: No roaming partner preference match - use default roaming partner priority 128");
2227 static struct wpa_bss
* pick_best_roaming_partner(struct wpa_supplicant
*wpa_s
,
2228 struct wpa_bss
*selected
,
2229 struct wpa_cred
*cred
)
2231 struct wpa_bss
*bss
;
2233 struct wpa_cred
*cred2
;
2236 * Check if any other BSS is operated by a more preferred roaming
2240 best_prio
= roaming_prio(wpa_s
, cred
, selected
);
2241 wpa_printf(MSG_DEBUG
, "Interworking: roaming_prio=%u for selected BSS "
2242 MACSTR
" (cred=%d)", best_prio
, MAC2STR(selected
->bssid
),
2245 dl_list_for_each(bss
, &wpa_s
->bss
, struct wpa_bss
, list
) {
2246 if (bss
== selected
)
2248 cred2
= interworking_credentials_available(wpa_s
, bss
, NULL
);
2251 if (!wpa_bss_get_ie(bss
, WLAN_EID_RSN
))
2253 prio
= roaming_prio(wpa_s
, cred2
, bss
);
2254 wpa_printf(MSG_DEBUG
, "Interworking: roaming_prio=%u for BSS "
2255 MACSTR
" (cred=%d)", prio
, MAC2STR(bss
->bssid
),
2257 if (prio
< best_prio
) {
2258 int bh1
, bh2
, load1
, load2
, conn1
, conn2
;
2259 bh1
= cred_below_min_backhaul(wpa_s
, cred
, selected
);
2260 load1
= cred_over_max_bss_load(wpa_s
, cred
, selected
);
2261 conn1
= cred_conn_capab_missing(wpa_s
, cred
, selected
);
2262 bh2
= cred_below_min_backhaul(wpa_s
, cred2
, bss
);
2263 load2
= cred_over_max_bss_load(wpa_s
, cred2
, bss
);
2264 conn2
= cred_conn_capab_missing(wpa_s
, cred2
, bss
);
2265 wpa_printf(MSG_DEBUG
, "Interworking: old: %d %d %d new: %d %d %d",
2266 bh1
, load1
, conn1
, bh2
, load2
, conn2
);
2267 if (bh1
|| load1
|| conn1
|| !(bh2
|| load2
|| conn2
)) {
2268 wpa_printf(MSG_DEBUG
, "Interworking: Better roaming partner " MACSTR
" selected", MAC2STR(bss
->bssid
));
2279 static void interworking_select_network(struct wpa_supplicant
*wpa_s
)
2281 struct wpa_bss
*bss
, *selected
= NULL
, *selected_home
= NULL
;
2282 struct wpa_bss
*selected2
= NULL
, *selected2_home
= NULL
;
2283 unsigned int count
= 0;
2286 struct wpa_cred
*cred
, *selected_cred
= NULL
;
2287 struct wpa_cred
*selected_home_cred
= NULL
;
2288 struct wpa_cred
*selected2_cred
= NULL
;
2289 struct wpa_cred
*selected2_home_cred
= NULL
;
2291 wpa_s
->network_select
= 0;
2293 wpa_printf(MSG_DEBUG
, "Interworking: Select network (auto_select=%d)",
2294 wpa_s
->auto_select
);
2295 dl_list_for_each(bss
, &wpa_s
->bss
, struct wpa_bss
, list
) {
2297 int bh
, bss_load
, conn_capab
;
2298 cred
= interworking_credentials_available(wpa_s
, bss
,
2302 if (!wpa_bss_get_ie(bss
, WLAN_EID_RSN
)) {
2304 * We currently support only HS 2.0 networks and those
2305 * are required to use WPA2-Enterprise.
2307 wpa_printf(MSG_DEBUG
, "Interworking: Credential match "
2308 "with " MACSTR
" but network does not use "
2309 "RSN", MAC2STR(bss
->bssid
));
2314 res
= interworking_home_sp(wpa_s
, bss
->anqp
?
2315 bss
->anqp
->domain_name
: NULL
);
2322 bh
= cred_below_min_backhaul(wpa_s
, cred
, bss
);
2323 bss_load
= cred_over_max_bss_load(wpa_s
, cred
, bss
);
2324 conn_capab
= cred_conn_capab_missing(wpa_s
, cred
, bss
);
2325 wpa_msg(wpa_s
, MSG_INFO
, "%s" MACSTR
" type=%s%s%s%s id=%d priority=%d sp_priority=%d",
2326 excluded
? INTERWORKING_BLACKLISTED
: INTERWORKING_AP
,
2327 MAC2STR(bss
->bssid
), type
,
2328 bh
? " below_min_backhaul=1" : "",
2329 bss_load
? " over_max_bss_load=1" : "",
2330 conn_capab
? " conn_capab_missing=1" : "",
2331 cred
->id
, cred
->priority
, cred
->sp_priority
);
2334 if (wpa_s
->auto_select
||
2335 (wpa_s
->conf
->auto_interworking
&&
2336 wpa_s
->auto_network_select
)) {
2337 if (bh
|| bss_load
|| conn_capab
) {
2338 if (selected2_cred
== NULL
||
2339 cred_prio_cmp(cred
, selected2_cred
) > 0) {
2340 wpa_printf(MSG_DEBUG
, "Interworking: Mark as selected2");
2342 selected2_cred
= cred
;
2345 (selected2_home_cred
== NULL
||
2346 cred_prio_cmp(cred
, selected2_home_cred
) >
2348 wpa_printf(MSG_DEBUG
, "Interworking: Mark as selected2_home");
2349 selected2_home
= bss
;
2350 selected2_home_cred
= cred
;
2353 if (selected_cred
== NULL
||
2354 cred_prio_cmp(cred
, selected_cred
) > 0) {
2355 wpa_printf(MSG_DEBUG
, "Interworking: Mark as selected");
2357 selected_cred
= cred
;
2360 (selected_home_cred
== NULL
||
2361 cred_prio_cmp(cred
, selected_home_cred
) >
2363 wpa_printf(MSG_DEBUG
, "Interworking: Mark as selected_home");
2364 selected_home
= bss
;
2365 selected_home_cred
= cred
;
2371 if (selected_home
&& selected_home
!= selected
&&
2372 selected_home_cred
&&
2373 (selected_cred
== NULL
||
2374 cred_prio_cmp(selected_home_cred
, selected_cred
) >= 0)) {
2375 /* Prefer network operated by the Home SP */
2376 wpa_printf(MSG_DEBUG
, "Interworking: Overrided selected with selected_home");
2377 selected
= selected_home
;
2378 selected_cred
= selected_home_cred
;
2382 if (selected2_home
) {
2383 wpa_printf(MSG_DEBUG
, "Interworking: Use home BSS with BW limit mismatch since no other network could be selected");
2384 selected
= selected2_home
;
2385 selected_cred
= selected2_home_cred
;
2386 } else if (selected2
) {
2387 wpa_printf(MSG_DEBUG
, "Interworking: Use visited BSS with BW limit mismatch since no other network could be selected");
2388 selected
= selected2
;
2389 selected_cred
= selected2_cred
;
2395 * No matching network was found based on configured
2396 * credentials. Check whether any of the enabled network blocks
2397 * have matching APs.
2399 if (interworking_find_network_match(wpa_s
)) {
2400 wpa_printf(MSG_DEBUG
, "Interworking: Possible BSS "
2401 "match for enabled network configurations");
2402 if (wpa_s
->auto_select
) {
2403 interworking_reconnect(wpa_s
);
2408 if (wpa_s
->auto_network_select
) {
2409 wpa_printf(MSG_DEBUG
, "Interworking: Continue "
2410 "scanning after ANQP fetch");
2411 wpa_supplicant_req_scan(wpa_s
, wpa_s
->scan_interval
,
2416 wpa_msg(wpa_s
, MSG_INFO
, INTERWORKING_NO_MATCH
"No network "
2417 "with matching credentials found");
2421 wpa_printf(MSG_DEBUG
, "Interworking: Selected " MACSTR
,
2422 MAC2STR(selected
->bssid
));
2423 selected
= pick_best_roaming_partner(wpa_s
, selected
,
2425 wpa_printf(MSG_DEBUG
, "Interworking: Selected " MACSTR
2426 " (after best roaming partner selection)",
2427 MAC2STR(selected
->bssid
));
2428 wpa_msg(wpa_s
, MSG_INFO
, INTERWORKING_SELECTED MACSTR
,
2429 MAC2STR(selected
->bssid
));
2430 interworking_connect(wpa_s
, selected
);
2435 static struct wpa_bss_anqp
*
2436 interworking_match_anqp_info(struct wpa_supplicant
*wpa_s
, struct wpa_bss
*bss
)
2438 struct wpa_bss
*other
;
2440 if (is_zero_ether_addr(bss
->hessid
))
2441 return NULL
; /* Cannot be in the same homegenous ESS */
2443 dl_list_for_each(other
, &wpa_s
->bss
, struct wpa_bss
, list
) {
2446 if (other
->anqp
== NULL
)
2448 if (other
->anqp
->roaming_consortium
== NULL
&&
2449 other
->anqp
->nai_realm
== NULL
&&
2450 other
->anqp
->anqp_3gpp
== NULL
&&
2451 other
->anqp
->domain_name
== NULL
)
2453 if (!(other
->flags
& WPA_BSS_ANQP_FETCH_TRIED
))
2455 if (os_memcmp(bss
->hessid
, other
->hessid
, ETH_ALEN
) != 0)
2457 if (bss
->ssid_len
!= other
->ssid_len
||
2458 os_memcmp(bss
->ssid
, other
->ssid
, bss
->ssid_len
) != 0)
2461 wpa_printf(MSG_DEBUG
, "Interworking: Share ANQP data with "
2462 "already fetched BSSID " MACSTR
" and " MACSTR
,
2463 MAC2STR(other
->bssid
), MAC2STR(bss
->bssid
));
2464 other
->anqp
->users
++;
2472 static void interworking_next_anqp_fetch(struct wpa_supplicant
*wpa_s
)
2474 struct wpa_bss
*bss
;
2478 wpa_printf(MSG_DEBUG
, "Interworking: next_anqp_fetch - "
2479 "fetch_anqp_in_progress=%d fetch_osu_icon_in_progress=%d",
2480 wpa_s
->fetch_anqp_in_progress
,
2481 wpa_s
->fetch_osu_icon_in_progress
);
2483 if (eloop_terminated() || !wpa_s
->fetch_anqp_in_progress
) {
2484 wpa_printf(MSG_DEBUG
, "Interworking: Stop next-ANQP-fetch");
2488 if (wpa_s
->fetch_osu_icon_in_progress
) {
2489 wpa_printf(MSG_DEBUG
, "Interworking: Next icon (in progress)");
2490 hs20_next_osu_icon(wpa_s
);
2494 dl_list_for_each(bss
, &wpa_s
->bss
, struct wpa_bss
, list
) {
2495 if (!(bss
->caps
& IEEE80211_CAP_ESS
))
2497 ie
= wpa_bss_get_ie(bss
, WLAN_EID_EXT_CAPAB
);
2498 if (ie
== NULL
|| ie
[1] < 4 || !(ie
[5] & 0x80))
2499 continue; /* AP does not support Interworking */
2500 if (disallowed_bssid(wpa_s
, bss
->bssid
) ||
2501 disallowed_ssid(wpa_s
, bss
->ssid
, bss
->ssid_len
))
2502 continue; /* Disallowed BSS */
2504 if (!(bss
->flags
& WPA_BSS_ANQP_FETCH_TRIED
)) {
2505 if (bss
->anqp
== NULL
) {
2506 bss
->anqp
= interworking_match_anqp_info(wpa_s
,
2509 /* Shared data already fetched */
2512 bss
->anqp
= wpa_bss_anqp_alloc();
2513 if (bss
->anqp
== NULL
)
2517 bss
->flags
|= WPA_BSS_ANQP_FETCH_TRIED
;
2518 wpa_msg(wpa_s
, MSG_INFO
, "Starting ANQP fetch for "
2519 MACSTR
, MAC2STR(bss
->bssid
));
2520 interworking_anqp_send_req(wpa_s
, bss
);
2526 if (wpa_s
->fetch_osu_info
) {
2527 if (wpa_s
->num_prov_found
== 0 &&
2528 wpa_s
->num_osu_scans
< 3) {
2529 wpa_printf(MSG_DEBUG
, "HS 2.0: No OSU providers seen - try to scan again");
2530 hs20_start_osu_scan(wpa_s
);
2533 wpa_printf(MSG_DEBUG
, "Interworking: Next icon");
2534 hs20_osu_icon_fetch(wpa_s
);
2537 wpa_msg(wpa_s
, MSG_INFO
, "ANQP fetch completed");
2538 wpa_s
->fetch_anqp_in_progress
= 0;
2539 if (wpa_s
->network_select
)
2540 interworking_select_network(wpa_s
);
2545 void interworking_start_fetch_anqp(struct wpa_supplicant
*wpa_s
)
2547 struct wpa_bss
*bss
;
2549 dl_list_for_each(bss
, &wpa_s
->bss
, struct wpa_bss
, list
)
2550 bss
->flags
&= ~WPA_BSS_ANQP_FETCH_TRIED
;
2552 wpa_s
->fetch_anqp_in_progress
= 1;
2553 interworking_next_anqp_fetch(wpa_s
);
2557 int interworking_fetch_anqp(struct wpa_supplicant
*wpa_s
)
2559 if (wpa_s
->fetch_anqp_in_progress
|| wpa_s
->network_select
)
2562 wpa_s
->network_select
= 0;
2563 wpa_s
->fetch_all_anqp
= 1;
2564 wpa_s
->fetch_osu_info
= 0;
2566 interworking_start_fetch_anqp(wpa_s
);
2572 void interworking_stop_fetch_anqp(struct wpa_supplicant
*wpa_s
)
2574 if (!wpa_s
->fetch_anqp_in_progress
)
2577 wpa_s
->fetch_anqp_in_progress
= 0;
2581 int anqp_send_req(struct wpa_supplicant
*wpa_s
, const u8
*dst
,
2582 u16 info_ids
[], size_t num_ids
, u32 subtypes
)
2585 struct wpabuf
*hs20_buf
= NULL
;
2588 struct wpa_bss
*bss
;
2591 freq
= wpa_s
->assoc_freq
;
2592 bss
= wpa_bss_get_bssid(wpa_s
, dst
);
2594 wpa_bss_anqp_unshare_alloc(bss
);
2600 wpa_printf(MSG_DEBUG
, "ANQP: Query Request to " MACSTR
" for %u id(s)",
2601 MAC2STR(dst
), (unsigned int) num_ids
);
2604 if (subtypes
!= 0) {
2605 hs20_buf
= wpabuf_alloc(100);
2606 if (hs20_buf
== NULL
)
2608 hs20_put_anqp_req(subtypes
, NULL
, 0, hs20_buf
);
2610 #endif /* CONFIG_HS20 */
2612 buf
= anqp_build_req(info_ids
, num_ids
, hs20_buf
);
2613 wpabuf_free(hs20_buf
);
2617 res
= gas_query_req(wpa_s
->gas
, dst
, freq
, buf
, anqp_resp_cb
, wpa_s
);
2619 wpa_printf(MSG_DEBUG
, "ANQP: Failed to send Query Request");
2623 wpa_printf(MSG_DEBUG
, "ANQP: Query started with dialog token "
2630 static void interworking_parse_rx_anqp_resp(struct wpa_supplicant
*wpa_s
,
2631 struct wpa_bss
*bss
, const u8
*sa
,
2633 const u8
*data
, size_t slen
)
2635 const u8
*pos
= data
;
2636 struct wpa_bss_anqp
*anqp
= NULL
;
2639 #endif /* CONFIG_HS20 */
2645 case ANQP_CAPABILITY_LIST
:
2646 wpa_msg(wpa_s
, MSG_INFO
, "RX-ANQP " MACSTR
2647 " ANQP Capability list", MAC2STR(sa
));
2649 case ANQP_VENUE_NAME
:
2650 wpa_msg(wpa_s
, MSG_INFO
, "RX-ANQP " MACSTR
2651 " Venue Name", MAC2STR(sa
));
2652 wpa_hexdump_ascii(MSG_DEBUG
, "ANQP: Venue Name", pos
, slen
);
2654 wpabuf_free(anqp
->venue_name
);
2655 anqp
->venue_name
= wpabuf_alloc_copy(pos
, slen
);
2658 case ANQP_NETWORK_AUTH_TYPE
:
2659 wpa_msg(wpa_s
, MSG_INFO
, "RX-ANQP " MACSTR
2660 " Network Authentication Type information",
2662 wpa_hexdump_ascii(MSG_DEBUG
, "ANQP: Network Authentication "
2665 wpabuf_free(anqp
->network_auth_type
);
2666 anqp
->network_auth_type
= wpabuf_alloc_copy(pos
, slen
);
2669 case ANQP_ROAMING_CONSORTIUM
:
2670 wpa_msg(wpa_s
, MSG_INFO
, "RX-ANQP " MACSTR
2671 " Roaming Consortium list", MAC2STR(sa
));
2672 wpa_hexdump_ascii(MSG_DEBUG
, "ANQP: Roaming Consortium",
2675 wpabuf_free(anqp
->roaming_consortium
);
2676 anqp
->roaming_consortium
= wpabuf_alloc_copy(pos
, slen
);
2679 case ANQP_IP_ADDR_TYPE_AVAILABILITY
:
2680 wpa_msg(wpa_s
, MSG_INFO
, "RX-ANQP " MACSTR
2681 " IP Address Type Availability information",
2683 wpa_hexdump(MSG_MSGDUMP
, "ANQP: IP Address Availability",
2686 wpabuf_free(anqp
->ip_addr_type_availability
);
2687 anqp
->ip_addr_type_availability
=
2688 wpabuf_alloc_copy(pos
, slen
);
2691 case ANQP_NAI_REALM
:
2692 wpa_msg(wpa_s
, MSG_INFO
, "RX-ANQP " MACSTR
2693 " NAI Realm list", MAC2STR(sa
));
2694 wpa_hexdump_ascii(MSG_DEBUG
, "ANQP: NAI Realm", pos
, slen
);
2696 wpabuf_free(anqp
->nai_realm
);
2697 anqp
->nai_realm
= wpabuf_alloc_copy(pos
, slen
);
2700 case ANQP_3GPP_CELLULAR_NETWORK
:
2701 wpa_msg(wpa_s
, MSG_INFO
, "RX-ANQP " MACSTR
2702 " 3GPP Cellular Network information", MAC2STR(sa
));
2703 wpa_hexdump_ascii(MSG_DEBUG
, "ANQP: 3GPP Cellular Network",
2706 wpabuf_free(anqp
->anqp_3gpp
);
2707 anqp
->anqp_3gpp
= wpabuf_alloc_copy(pos
, slen
);
2710 case ANQP_DOMAIN_NAME
:
2711 wpa_msg(wpa_s
, MSG_INFO
, "RX-ANQP " MACSTR
2712 " Domain Name list", MAC2STR(sa
));
2713 wpa_hexdump_ascii(MSG_MSGDUMP
, "ANQP: Domain Name", pos
, slen
);
2715 wpabuf_free(anqp
->domain_name
);
2716 anqp
->domain_name
= wpabuf_alloc_copy(pos
, slen
);
2719 case ANQP_VENDOR_SPECIFIC
:
2723 switch (WPA_GET_BE24(pos
)) {
2735 case HS20_ANQP_OUI_TYPE
:
2736 hs20_parse_rx_hs20_anqp_resp(wpa_s
, sa
, pos
,
2740 wpa_printf(MSG_DEBUG
, "HS20: Unsupported ANQP "
2741 "vendor type %u", type
);
2745 #endif /* CONFIG_HS20 */
2747 wpa_printf(MSG_DEBUG
, "Interworking: Unsupported "
2748 "vendor-specific ANQP OUI %06x",
2754 wpa_printf(MSG_DEBUG
, "Interworking: Unsupported ANQP Info ID "
2761 void anqp_resp_cb(void *ctx
, const u8
*dst
, u8 dialog_token
,
2762 enum gas_query_result result
,
2763 const struct wpabuf
*adv_proto
,
2764 const struct wpabuf
*resp
, u16 status_code
)
2766 struct wpa_supplicant
*wpa_s
= ctx
;
2771 struct wpa_bss
*bss
= NULL
, *tmp
;
2773 wpa_printf(MSG_DEBUG
, "Interworking: anqp_resp_cb dst=" MACSTR
2774 " dialog_token=%u result=%d status_code=%u",
2775 MAC2STR(dst
), dialog_token
, result
, status_code
);
2776 if (result
!= GAS_QUERY_SUCCESS
) {
2777 if (wpa_s
->fetch_osu_icon_in_progress
)
2778 hs20_icon_fetch_failed(wpa_s
);
2782 pos
= wpabuf_head(adv_proto
);
2783 if (wpabuf_len(adv_proto
) < 4 || pos
[0] != WLAN_EID_ADV_PROTO
||
2784 pos
[1] < 2 || pos
[3] != ACCESS_NETWORK_QUERY_PROTOCOL
) {
2785 wpa_printf(MSG_DEBUG
, "ANQP: Unexpected Advertisement "
2786 "Protocol in response");
2787 if (wpa_s
->fetch_osu_icon_in_progress
)
2788 hs20_icon_fetch_failed(wpa_s
);
2793 * If possible, select the BSS entry based on which BSS entry was used
2794 * for the request. This can help in cases where multiple BSS entries
2795 * may exist for the same AP.
2797 dl_list_for_each_reverse(tmp
, &wpa_s
->bss
, struct wpa_bss
, list
) {
2798 if (tmp
== wpa_s
->interworking_gas_bss
&&
2799 os_memcmp(tmp
->bssid
, dst
, ETH_ALEN
) == 0) {
2805 bss
= wpa_bss_get_bssid(wpa_s
, dst
);
2807 pos
= wpabuf_head(resp
);
2808 end
= pos
+ wpabuf_len(resp
);
2811 if (pos
+ 4 > end
) {
2812 wpa_printf(MSG_DEBUG
, "ANQP: Invalid element");
2815 info_id
= WPA_GET_LE16(pos
);
2817 slen
= WPA_GET_LE16(pos
);
2819 if (pos
+ slen
> end
) {
2820 wpa_printf(MSG_DEBUG
, "ANQP: Invalid element length "
2821 "for Info ID %u", info_id
);
2824 interworking_parse_rx_anqp_resp(wpa_s
, bss
, dst
, info_id
, pos
,
2829 hs20_notify_parse_done(wpa_s
);
2833 static void interworking_scan_res_handler(struct wpa_supplicant
*wpa_s
,
2834 struct wpa_scan_results
*scan_res
)
2836 wpa_printf(MSG_DEBUG
, "Interworking: Scan results available - start "
2838 interworking_start_fetch_anqp(wpa_s
);
2842 int interworking_select(struct wpa_supplicant
*wpa_s
, int auto_select
,
2845 interworking_stop_fetch_anqp(wpa_s
);
2846 wpa_s
->network_select
= 1;
2847 wpa_s
->auto_network_select
= 0;
2848 wpa_s
->auto_select
= !!auto_select
;
2849 wpa_s
->fetch_all_anqp
= 0;
2850 wpa_s
->fetch_osu_info
= 0;
2851 wpa_printf(MSG_DEBUG
, "Interworking: Start scan for network "
2853 wpa_s
->scan_res_handler
= interworking_scan_res_handler
;
2854 wpa_s
->normal_scans
= 0;
2855 wpa_s
->scan_req
= MANUAL_SCAN_REQ
;
2856 os_free(wpa_s
->manual_scan_freqs
);
2857 wpa_s
->manual_scan_freqs
= freqs
;
2858 wpa_s
->after_wps
= 0;
2859 wpa_s
->known_wps_freq
= 0;
2860 wpa_supplicant_req_scan(wpa_s
, 0, 0);
2866 static void gas_resp_cb(void *ctx
, const u8
*addr
, u8 dialog_token
,
2867 enum gas_query_result result
,
2868 const struct wpabuf
*adv_proto
,
2869 const struct wpabuf
*resp
, u16 status_code
)
2871 struct wpa_supplicant
*wpa_s
= ctx
;
2874 wpa_msg(wpa_s
, MSG_INFO
, GAS_RESPONSE_INFO
"addr=" MACSTR
2875 " dialog_token=%d status_code=%d resp_len=%d",
2876 MAC2STR(addr
), dialog_token
, status_code
,
2877 resp
? (int) wpabuf_len(resp
) : -1);
2881 n
= wpabuf_dup(resp
);
2884 wpabuf_free(wpa_s
->prev_gas_resp
);
2885 wpa_s
->prev_gas_resp
= wpa_s
->last_gas_resp
;
2886 os_memcpy(wpa_s
->prev_gas_addr
, wpa_s
->last_gas_addr
, ETH_ALEN
);
2887 wpa_s
->prev_gas_dialog_token
= wpa_s
->last_gas_dialog_token
;
2888 wpa_s
->last_gas_resp
= n
;
2889 os_memcpy(wpa_s
->last_gas_addr
, addr
, ETH_ALEN
);
2890 wpa_s
->last_gas_dialog_token
= dialog_token
;
2894 int gas_send_request(struct wpa_supplicant
*wpa_s
, const u8
*dst
,
2895 const struct wpabuf
*adv_proto
,
2896 const struct wpabuf
*query
)
2901 struct wpa_bss
*bss
;
2904 u8 query_resp_len_limit
= 0, pame_bi
= 0;
2906 freq
= wpa_s
->assoc_freq
;
2907 bss
= wpa_bss_get_bssid(wpa_s
, dst
);
2913 wpa_printf(MSG_DEBUG
, "GAS request to " MACSTR
" (freq %d MHz)",
2914 MAC2STR(dst
), freq
);
2915 wpa_hexdump_buf(MSG_DEBUG
, "Advertisement Protocol ID", adv_proto
);
2916 wpa_hexdump_buf(MSG_DEBUG
, "GAS Query", query
);
2918 len
= 3 + wpabuf_len(adv_proto
) + 2;
2920 len
+= wpabuf_len(query
);
2921 buf
= gas_build_initial_req(0, len
);
2925 /* Advertisement Protocol IE */
2926 wpabuf_put_u8(buf
, WLAN_EID_ADV_PROTO
);
2927 wpabuf_put_u8(buf
, 1 + wpabuf_len(adv_proto
)); /* Length */
2928 wpabuf_put_u8(buf
, (query_resp_len_limit
& 0x7f) |
2929 (pame_bi
? 0x80 : 0));
2930 wpabuf_put_buf(buf
, adv_proto
);
2934 wpabuf_put_le16(buf
, wpabuf_len(query
));
2935 wpabuf_put_buf(buf
, query
);
2937 wpabuf_put_le16(buf
, 0);
2939 res
= gas_query_req(wpa_s
->gas
, dst
, freq
, buf
, gas_resp_cb
, wpa_s
);
2941 wpa_printf(MSG_DEBUG
, "GAS: Failed to send Query Request");
2945 wpa_printf(MSG_DEBUG
, "GAS: Query started with dialog token "