| /* |
| * Interworking (IEEE 802.11u) |
| * Copyright (c) 2011-2013, Qualcomm Atheros, Inc. |
| * Copyright (c) 2011-2014, Jouni Malinen <j@w1.fi> |
| * |
| * This software may be distributed under the terms of the BSD license. |
| * See README for more details. |
| */ |
| |
| #include "includes.h" |
| |
| #include "common.h" |
| #include "common/ieee802_11_defs.h" |
| #include "common/gas.h" |
| #include "common/wpa_ctrl.h" |
| #include "utils/pcsc_funcs.h" |
| #include "utils/eloop.h" |
| #include "drivers/driver.h" |
| #include "eap_common/eap_defs.h" |
| #include "eap_peer/eap.h" |
| #include "eap_peer/eap_methods.h" |
| #include "eapol_supp/eapol_supp_sm.h" |
| #include "rsn_supp/wpa.h" |
| #include "wpa_supplicant_i.h" |
| #include "config.h" |
| #include "config_ssid.h" |
| #include "bss.h" |
| #include "scan.h" |
| #include "notify.h" |
| #include "driver_i.h" |
| #include "gas_query.h" |
| #include "hs20_supplicant.h" |
| #include "interworking.h" |
| |
| |
| #if defined(EAP_SIM) | defined(EAP_SIM_DYNAMIC) |
| #define INTERWORKING_3GPP |
| #else |
| #if defined(EAP_AKA) | defined(EAP_AKA_DYNAMIC) |
| #define INTERWORKING_3GPP |
| #else |
| #if defined(EAP_AKA_PRIME) | defined(EAP_AKA_PRIME_DYNAMIC) |
| #define INTERWORKING_3GPP |
| #endif |
| #endif |
| #endif |
| |
| static void interworking_next_anqp_fetch(struct wpa_supplicant *wpa_s); |
| static struct wpa_cred * interworking_credentials_available_realm( |
| struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int ignore_bw, |
| int *excluded); |
| static struct wpa_cred * interworking_credentials_available_3gpp( |
| struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int ignore_bw, |
| int *excluded); |
| |
| |
| static int cred_prio_cmp(const struct wpa_cred *a, const struct wpa_cred *b) |
| { |
| if (a->priority > b->priority) |
| return 1; |
| if (a->priority < b->priority) |
| return -1; |
| if (a->provisioning_sp == NULL || b->provisioning_sp == NULL || |
| os_strcmp(a->provisioning_sp, b->provisioning_sp) != 0) |
| return 0; |
| if (a->sp_priority < b->sp_priority) |
| return 1; |
| if (a->sp_priority > b->sp_priority) |
| return -1; |
| return 0; |
| } |
| |
| |
| static void interworking_reconnect(struct wpa_supplicant *wpa_s) |
| { |
| unsigned int tried; |
| |
| if (wpa_s->wpa_state >= WPA_AUTHENTICATING) { |
| wpa_supplicant_cancel_sched_scan(wpa_s); |
| wpa_s->own_disconnect_req = 1; |
| wpa_supplicant_deauthenticate(wpa_s, |
| WLAN_REASON_DEAUTH_LEAVING); |
| } |
| wpa_s->disconnected = 0; |
| wpa_s->reassociate = 1; |
| tried = wpa_s->interworking_fast_assoc_tried; |
| wpa_s->interworking_fast_assoc_tried = 1; |
| |
| if (!tried && wpa_supplicant_fast_associate(wpa_s) >= 0) |
| return; |
| |
| wpa_s->interworking_fast_assoc_tried = 0; |
| wpa_supplicant_req_scan(wpa_s, 0, 0); |
| } |
| |
| |
| static struct wpabuf * anqp_build_req(u16 info_ids[], size_t num_ids, |
| struct wpabuf *extra) |
| { |
| struct wpabuf *buf; |
| size_t i; |
| u8 *len_pos; |
| |
| buf = gas_anqp_build_initial_req(0, 4 + num_ids * 2 + |
| (extra ? wpabuf_len(extra) : 0)); |
| if (buf == NULL) |
| return NULL; |
| |
| len_pos = gas_anqp_add_element(buf, ANQP_QUERY_LIST); |
| for (i = 0; i < num_ids; i++) |
| wpabuf_put_le16(buf, info_ids[i]); |
| gas_anqp_set_element_len(buf, len_pos); |
| if (extra) |
| wpabuf_put_buf(buf, extra); |
| |
| gas_anqp_set_len(buf); |
| |
| return buf; |
| } |
| |
| |
| static void interworking_anqp_resp_cb(void *ctx, const u8 *dst, |
| u8 dialog_token, |
| enum gas_query_result result, |
| const struct wpabuf *adv_proto, |
| const struct wpabuf *resp, |
| u16 status_code) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| |
| wpa_printf(MSG_DEBUG, "ANQP: Response callback dst=" MACSTR |
| " dialog_token=%u result=%d status_code=%u", |
| MAC2STR(dst), dialog_token, result, status_code); |
| anqp_resp_cb(wpa_s, dst, dialog_token, result, adv_proto, resp, |
| status_code); |
| interworking_next_anqp_fetch(wpa_s); |
| } |
| |
| |
| static int cred_with_roaming_consortium(struct wpa_supplicant *wpa_s) |
| { |
| struct wpa_cred *cred; |
| |
| for (cred = wpa_s->conf->cred; cred; cred = cred->next) { |
| if (cred->roaming_consortium_len) |
| return 1; |
| if (cred->required_roaming_consortium_len) |
| return 1; |
| } |
| return 0; |
| } |
| |
| |
| static int cred_with_3gpp(struct wpa_supplicant *wpa_s) |
| { |
| struct wpa_cred *cred; |
| |
| for (cred = wpa_s->conf->cred; cred; cred = cred->next) { |
| if (cred->pcsc || cred->imsi) |
| return 1; |
| } |
| return 0; |
| } |
| |
| |
| static int cred_with_nai_realm(struct wpa_supplicant *wpa_s) |
| { |
| struct wpa_cred *cred; |
| |
| for (cred = wpa_s->conf->cred; cred; cred = cred->next) { |
| if (cred->pcsc || cred->imsi) |
| continue; |
| if (!cred->eap_method) |
| return 1; |
| if (cred->realm && cred->roaming_consortium_len == 0) |
| return 1; |
| } |
| return 0; |
| } |
| |
| |
| static int cred_with_domain(struct wpa_supplicant *wpa_s) |
| { |
| struct wpa_cred *cred; |
| |
| for (cred = wpa_s->conf->cred; cred; cred = cred->next) { |
| if (cred->domain || cred->pcsc || cred->imsi || |
| cred->roaming_partner) |
| return 1; |
| } |
| return 0; |
| } |
| |
| |
| #ifdef CONFIG_HS20 |
| |
| static int cred_with_min_backhaul(struct wpa_supplicant *wpa_s) |
| { |
| struct wpa_cred *cred; |
| |
| for (cred = wpa_s->conf->cred; cred; cred = cred->next) { |
| if (cred->min_dl_bandwidth_home || |
| cred->min_ul_bandwidth_home || |
| cred->min_dl_bandwidth_roaming || |
| cred->min_ul_bandwidth_roaming) |
| return 1; |
| } |
| return 0; |
| } |
| |
| |
| static int cred_with_conn_capab(struct wpa_supplicant *wpa_s) |
| { |
| struct wpa_cred *cred; |
| |
| for (cred = wpa_s->conf->cred; cred; cred = cred->next) { |
| if (cred->num_req_conn_capab) |
| return 1; |
| } |
| return 0; |
| } |
| |
| #endif /* CONFIG_HS20 */ |
| |
| |
| static int additional_roaming_consortiums(struct wpa_bss *bss) |
| { |
| const u8 *ie; |
| ie = wpa_bss_get_ie(bss, WLAN_EID_ROAMING_CONSORTIUM); |
| if (ie == NULL || ie[1] == 0) |
| return 0; |
| return ie[2]; /* Number of ANQP OIs */ |
| } |
| |
| |
| static void interworking_continue_anqp(void *eloop_ctx, void *sock_ctx) |
| { |
| struct wpa_supplicant *wpa_s = eloop_ctx; |
| interworking_next_anqp_fetch(wpa_s); |
| } |
| |
| |
| static int interworking_anqp_send_req(struct wpa_supplicant *wpa_s, |
| struct wpa_bss *bss) |
| { |
| struct wpabuf *buf; |
| int ret = 0; |
| int res; |
| u16 info_ids[8]; |
| size_t num_info_ids = 0; |
| struct wpabuf *extra = NULL; |
| int all = wpa_s->fetch_all_anqp; |
| |
| wpa_msg(wpa_s, MSG_DEBUG, "Interworking: ANQP Query Request to " MACSTR, |
| MAC2STR(bss->bssid)); |
| wpa_s->interworking_gas_bss = bss; |
| |
| info_ids[num_info_ids++] = ANQP_CAPABILITY_LIST; |
| if (all) { |
| info_ids[num_info_ids++] = ANQP_VENUE_NAME; |
| info_ids[num_info_ids++] = ANQP_NETWORK_AUTH_TYPE; |
| } |
| if (all || (cred_with_roaming_consortium(wpa_s) && |
| additional_roaming_consortiums(bss))) |
| info_ids[num_info_ids++] = ANQP_ROAMING_CONSORTIUM; |
| if (all) |
| info_ids[num_info_ids++] = ANQP_IP_ADDR_TYPE_AVAILABILITY; |
| if (all || cred_with_nai_realm(wpa_s)) |
| info_ids[num_info_ids++] = ANQP_NAI_REALM; |
| if (all || cred_with_3gpp(wpa_s)) { |
| info_ids[num_info_ids++] = ANQP_3GPP_CELLULAR_NETWORK; |
| wpa_supplicant_scard_init(wpa_s, NULL); |
| } |
| if (all || cred_with_domain(wpa_s)) |
| info_ids[num_info_ids++] = ANQP_DOMAIN_NAME; |
| wpa_hexdump(MSG_DEBUG, "Interworking: ANQP Query info", |
| (u8 *) info_ids, num_info_ids * 2); |
| |
| #ifdef CONFIG_HS20 |
| if (wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE)) { |
| u8 *len_pos; |
| |
| extra = wpabuf_alloc(100); |
| if (!extra) |
| return -1; |
| |
| len_pos = gas_anqp_add_element(extra, ANQP_VENDOR_SPECIFIC); |
| wpabuf_put_be24(extra, OUI_WFA); |
| wpabuf_put_u8(extra, HS20_ANQP_OUI_TYPE); |
| wpabuf_put_u8(extra, HS20_STYPE_QUERY_LIST); |
| wpabuf_put_u8(extra, 0); /* Reserved */ |
| wpabuf_put_u8(extra, HS20_STYPE_CAPABILITY_LIST); |
| if (all) |
| wpabuf_put_u8(extra, |
| HS20_STYPE_OPERATOR_FRIENDLY_NAME); |
| if (all || cred_with_min_backhaul(wpa_s)) |
| wpabuf_put_u8(extra, HS20_STYPE_WAN_METRICS); |
| if (all || cred_with_conn_capab(wpa_s)) |
| wpabuf_put_u8(extra, HS20_STYPE_CONNECTION_CAPABILITY); |
| if (all) |
| wpabuf_put_u8(extra, HS20_STYPE_OPERATING_CLASS); |
| if (all) |
| wpabuf_put_u8(extra, HS20_STYPE_OSU_PROVIDERS_LIST); |
| gas_anqp_set_element_len(extra, len_pos); |
| } |
| #endif /* CONFIG_HS20 */ |
| |
| buf = anqp_build_req(info_ids, num_info_ids, extra); |
| wpabuf_free(extra); |
| if (buf == NULL) |
| return -1; |
| |
| res = gas_query_req(wpa_s->gas, bss->bssid, bss->freq, buf, |
| interworking_anqp_resp_cb, wpa_s); |
| if (res < 0) { |
| wpa_msg(wpa_s, MSG_DEBUG, "ANQP: Failed to send Query Request"); |
| wpabuf_free(buf); |
| ret = -1; |
| eloop_register_timeout(0, 0, interworking_continue_anqp, wpa_s, |
| NULL); |
| } else |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "ANQP: Query started with dialog token %u", res); |
| |
| return ret; |
| } |
| |
| |
| struct nai_realm_eap { |
| u8 method; |
| u8 inner_method; |
| enum nai_realm_eap_auth_inner_non_eap inner_non_eap; |
| u8 cred_type; |
| u8 tunneled_cred_type; |
| }; |
| |
| struct nai_realm { |
| u8 encoding; |
| char *realm; |
| u8 eap_count; |
| struct nai_realm_eap *eap; |
| }; |
| |
| |
| static void nai_realm_free(struct nai_realm *realms, u16 count) |
| { |
| u16 i; |
| |
| if (realms == NULL) |
| return; |
| for (i = 0; i < count; i++) { |
| os_free(realms[i].eap); |
| os_free(realms[i].realm); |
| } |
| os_free(realms); |
| } |
| |
| |
| static const u8 * nai_realm_parse_eap(struct nai_realm_eap *e, const u8 *pos, |
| const u8 *end) |
| { |
| u8 elen, auth_count, a; |
| const u8 *e_end; |
| |
| if (pos + 3 > end) { |
| wpa_printf(MSG_DEBUG, "No room for EAP Method fixed fields"); |
| return NULL; |
| } |
| |
| elen = *pos++; |
| if (pos + elen > end || elen < 2) { |
| wpa_printf(MSG_DEBUG, "No room for EAP Method subfield"); |
| return NULL; |
| } |
| e_end = pos + elen; |
| e->method = *pos++; |
| auth_count = *pos++; |
| wpa_printf(MSG_DEBUG, "EAP Method: len=%u method=%u auth_count=%u", |
| elen, e->method, auth_count); |
| |
| for (a = 0; a < auth_count; a++) { |
| u8 id, len; |
| |
| if (pos + 2 > end || pos + 2 + pos[1] > end) { |
| wpa_printf(MSG_DEBUG, "No room for Authentication " |
| "Parameter subfield"); |
| return NULL; |
| } |
| |
| id = *pos++; |
| len = *pos++; |
| |
| switch (id) { |
| case NAI_REALM_EAP_AUTH_NON_EAP_INNER_AUTH: |
| if (len < 1) |
| break; |
| e->inner_non_eap = *pos; |
| if (e->method != EAP_TYPE_TTLS) |
| break; |
| switch (*pos) { |
| case NAI_REALM_INNER_NON_EAP_PAP: |
| wpa_printf(MSG_DEBUG, "EAP-TTLS/PAP"); |
| break; |
| case NAI_REALM_INNER_NON_EAP_CHAP: |
| wpa_printf(MSG_DEBUG, "EAP-TTLS/CHAP"); |
| break; |
| case NAI_REALM_INNER_NON_EAP_MSCHAP: |
| wpa_printf(MSG_DEBUG, "EAP-TTLS/MSCHAP"); |
| break; |
| case NAI_REALM_INNER_NON_EAP_MSCHAPV2: |
| wpa_printf(MSG_DEBUG, "EAP-TTLS/MSCHAPV2"); |
| break; |
| } |
| break; |
| case NAI_REALM_EAP_AUTH_INNER_AUTH_EAP_METHOD: |
| if (len < 1) |
| break; |
| e->inner_method = *pos; |
| wpa_printf(MSG_DEBUG, "Inner EAP method: %u", |
| e->inner_method); |
| break; |
| case NAI_REALM_EAP_AUTH_CRED_TYPE: |
| if (len < 1) |
| break; |
| e->cred_type = *pos; |
| wpa_printf(MSG_DEBUG, "Credential Type: %u", |
| e->cred_type); |
| break; |
| case NAI_REALM_EAP_AUTH_TUNNELED_CRED_TYPE: |
| if (len < 1) |
| break; |
| e->tunneled_cred_type = *pos; |
| wpa_printf(MSG_DEBUG, "Tunneled EAP Method Credential " |
| "Type: %u", e->tunneled_cred_type); |
| break; |
| default: |
| wpa_printf(MSG_DEBUG, "Unsupported Authentication " |
| "Parameter: id=%u len=%u", id, len); |
| wpa_hexdump(MSG_DEBUG, "Authentication Parameter " |
| "Value", pos, len); |
| break; |
| } |
| |
| pos += len; |
| } |
| |
| return e_end; |
| } |
| |
| |
| static const u8 * nai_realm_parse_realm(struct nai_realm *r, const u8 *pos, |
| const u8 *end) |
| { |
| u16 len; |
| const u8 *f_end; |
| u8 realm_len, e; |
| |
| if (end - pos < 4) { |
| wpa_printf(MSG_DEBUG, "No room for NAI Realm Data " |
| "fixed fields"); |
| return NULL; |
| } |
| |
| len = WPA_GET_LE16(pos); /* NAI Realm Data field Length */ |
| pos += 2; |
| if (pos + len > end || len < 3) { |
| wpa_printf(MSG_DEBUG, "No room for NAI Realm Data " |
| "(len=%u; left=%u)", |
| len, (unsigned int) (end - pos)); |
| return NULL; |
| } |
| f_end = pos + len; |
| |
| r->encoding = *pos++; |
| realm_len = *pos++; |
| if (pos + realm_len > f_end) { |
| wpa_printf(MSG_DEBUG, "No room for NAI Realm " |
| "(len=%u; left=%u)", |
| realm_len, (unsigned int) (f_end - pos)); |
| return NULL; |
| } |
| wpa_hexdump_ascii(MSG_DEBUG, "NAI Realm", pos, realm_len); |
| r->realm = dup_binstr(pos, realm_len); |
| if (r->realm == NULL) |
| return NULL; |
| pos += realm_len; |
| |
| if (pos + 1 > f_end) { |
| wpa_printf(MSG_DEBUG, "No room for EAP Method Count"); |
| return NULL; |
| } |
| r->eap_count = *pos++; |
| wpa_printf(MSG_DEBUG, "EAP Count: %u", r->eap_count); |
| if (pos + r->eap_count * 3 > f_end) { |
| wpa_printf(MSG_DEBUG, "No room for EAP Methods"); |
| return NULL; |
| } |
| r->eap = os_calloc(r->eap_count, sizeof(struct nai_realm_eap)); |
| if (r->eap == NULL) |
| return NULL; |
| |
| for (e = 0; e < r->eap_count; e++) { |
| pos = nai_realm_parse_eap(&r->eap[e], pos, f_end); |
| if (pos == NULL) |
| return NULL; |
| } |
| |
| return f_end; |
| } |
| |
| |
| static struct nai_realm * nai_realm_parse(struct wpabuf *anqp, u16 *count) |
| { |
| struct nai_realm *realm; |
| const u8 *pos, *end; |
| u16 i, num; |
| size_t left; |
| |
| if (anqp == NULL) |
| return NULL; |
| left = wpabuf_len(anqp); |
| if (left < 2) |
| return NULL; |
| |
| pos = wpabuf_head_u8(anqp); |
| end = pos + left; |
| num = WPA_GET_LE16(pos); |
| wpa_printf(MSG_DEBUG, "NAI Realm Count: %u", num); |
| pos += 2; |
| left -= 2; |
| |
| if (num > left / 5) { |
| wpa_printf(MSG_DEBUG, "Invalid NAI Realm Count %u - not " |
| "enough data (%u octets) for that many realms", |
| num, (unsigned int) left); |
| return NULL; |
| } |
| |
| realm = os_calloc(num, sizeof(struct nai_realm)); |
| if (realm == NULL) |
| return NULL; |
| |
| for (i = 0; i < num; i++) { |
| pos = nai_realm_parse_realm(&realm[i], pos, end); |
| if (pos == NULL) { |
| nai_realm_free(realm, num); |
| return NULL; |
| } |
| } |
| |
| *count = num; |
| return realm; |
| } |
| |
| |
| static int nai_realm_match(struct nai_realm *realm, const char *home_realm) |
| { |
| char *tmp, *pos, *end; |
| int match = 0; |
| |
| if (realm->realm == NULL || home_realm == NULL) |
| return 0; |
| |
| if (os_strchr(realm->realm, ';') == NULL) |
| return os_strcasecmp(realm->realm, home_realm) == 0; |
| |
| tmp = os_strdup(realm->realm); |
| if (tmp == NULL) |
| return 0; |
| |
| pos = tmp; |
| while (*pos) { |
| end = os_strchr(pos, ';'); |
| if (end) |
| *end = '\0'; |
| if (os_strcasecmp(pos, home_realm) == 0) { |
| match = 1; |
| break; |
| } |
| if (end == NULL) |
| break; |
| pos = end + 1; |
| } |
| |
| os_free(tmp); |
| |
| return match; |
| } |
| |
| |
| static int nai_realm_cred_username(struct wpa_supplicant *wpa_s, |
| struct nai_realm_eap *eap) |
| { |
| if (eap_get_name(EAP_VENDOR_IETF, eap->method) == NULL) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "nai-realm-cred-username: EAP method not supported: %d", |
| eap->method); |
| return 0; /* method not supported */ |
| } |
| |
| if (eap->method != EAP_TYPE_TTLS && eap->method != EAP_TYPE_PEAP && |
| eap->method != EAP_TYPE_FAST) { |
| /* Only tunneled methods with username/password supported */ |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "nai-realm-cred-username: Method: %d is not TTLS, PEAP, or FAST", |
| eap->method); |
| return 0; |
| } |
| |
| if (eap->method == EAP_TYPE_PEAP || eap->method == EAP_TYPE_FAST) { |
| if (eap->inner_method && |
| eap_get_name(EAP_VENDOR_IETF, eap->inner_method) == NULL) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "nai-realm-cred-username: PEAP/FAST: Inner method not supported: %d", |
| eap->inner_method); |
| return 0; |
| } |
| if (!eap->inner_method && |
| eap_get_name(EAP_VENDOR_IETF, EAP_TYPE_MSCHAPV2) == NULL) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "nai-realm-cred-username: MSCHAPv2 not supported"); |
| return 0; |
| } |
| } |
| |
| if (eap->method == EAP_TYPE_TTLS) { |
| if (eap->inner_method == 0 && eap->inner_non_eap == 0) |
| return 1; /* Assume TTLS/MSCHAPv2 is used */ |
| if (eap->inner_method && |
| eap_get_name(EAP_VENDOR_IETF, eap->inner_method) == NULL) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "nai-realm-cred-username: TTLS, but inner not supported: %d", |
| eap->inner_method); |
| return 0; |
| } |
| if (eap->inner_non_eap && |
| eap->inner_non_eap != NAI_REALM_INNER_NON_EAP_PAP && |
| eap->inner_non_eap != NAI_REALM_INNER_NON_EAP_CHAP && |
| eap->inner_non_eap != NAI_REALM_INNER_NON_EAP_MSCHAP && |
| eap->inner_non_eap != NAI_REALM_INNER_NON_EAP_MSCHAPV2) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "nai-realm-cred-username: TTLS, inner-non-eap not supported: %d", |
| eap->inner_non_eap); |
| return 0; |
| } |
| } |
| |
| if (eap->inner_method && |
| eap->inner_method != EAP_TYPE_GTC && |
| eap->inner_method != EAP_TYPE_MSCHAPV2) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "nai-realm-cred-username: inner-method not GTC or MSCHAPv2: %d", |
| eap->inner_method); |
| return 0; |
| } |
| |
| return 1; |
| } |
| |
| |
| static int nai_realm_cred_cert(struct wpa_supplicant *wpa_s, |
| struct nai_realm_eap *eap) |
| { |
| if (eap_get_name(EAP_VENDOR_IETF, eap->method) == NULL) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "nai-realm-cred-cert: Method not supported: %d", |
| eap->method); |
| return 0; /* method not supported */ |
| } |
| |
| if (eap->method != EAP_TYPE_TLS) { |
| /* Only EAP-TLS supported for credential authentication */ |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "nai-realm-cred-cert: Method not TLS: %d", |
| eap->method); |
| return 0; |
| } |
| |
| return 1; |
| } |
| |
| |
| static struct nai_realm_eap * nai_realm_find_eap(struct wpa_supplicant *wpa_s, |
| struct wpa_cred *cred, |
| struct nai_realm *realm) |
| { |
| u8 e; |
| |
| if (cred->username == NULL || |
| cred->username[0] == '\0' || |
| ((cred->password == NULL || |
| cred->password[0] == '\0') && |
| (cred->private_key == NULL || |
| cred->private_key[0] == '\0'))) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "nai-realm-find-eap: incomplete cred info: username: %s password: %s private_key: %s", |
| cred->username ? cred->username : "NULL", |
| cred->password ? cred->password : "NULL", |
| cred->private_key ? cred->private_key : "NULL"); |
| return NULL; |
| } |
| |
| for (e = 0; e < realm->eap_count; e++) { |
| struct nai_realm_eap *eap = &realm->eap[e]; |
| if (cred->password && cred->password[0] && |
| nai_realm_cred_username(wpa_s, eap)) |
| return eap; |
| if (cred->private_key && cred->private_key[0] && |
| nai_realm_cred_cert(wpa_s, eap)) |
| return eap; |
| } |
| |
| return NULL; |
| } |
| |
| |
| #ifdef INTERWORKING_3GPP |
| |
| static int plmn_id_match(struct wpabuf *anqp, const char *imsi, int mnc_len) |
| { |
| u8 plmn[3], plmn2[3]; |
| const u8 *pos, *end; |
| u8 udhl; |
| |
| /* |
| * See Annex A of 3GPP TS 24.234 v8.1.0 for description. The network |
| * operator is allowed to include only two digits of the MNC, so allow |
| * matches based on both two and three digit MNC assumptions. Since some |
| * SIM/USIM cards may not expose MNC length conveniently, we may be |
| * provided the default MNC length 3 here and as such, checking with MNC |
| * length 2 is justifiable even though 3GPP TS 24.234 does not mention |
| * that case. Anyway, MCC/MNC pair where both 2 and 3 digit MNC is used |
| * with otherwise matching values would not be good idea in general, so |
| * this should not result in selecting incorrect networks. |
| */ |
| /* Match with 3 digit MNC */ |
| plmn[0] = (imsi[0] - '0') | ((imsi[1] - '0') << 4); |
| plmn[1] = (imsi[2] - '0') | ((imsi[5] - '0') << 4); |
| plmn[2] = (imsi[3] - '0') | ((imsi[4] - '0') << 4); |
| /* Match with 2 digit MNC */ |
| plmn2[0] = (imsi[0] - '0') | ((imsi[1] - '0') << 4); |
| plmn2[1] = (imsi[2] - '0') | 0xf0; |
| plmn2[2] = (imsi[3] - '0') | ((imsi[4] - '0') << 4); |
| |
| if (anqp == NULL) |
| return 0; |
| pos = wpabuf_head_u8(anqp); |
| end = pos + wpabuf_len(anqp); |
| if (pos + 2 > end) |
| return 0; |
| if (*pos != 0) { |
| wpa_printf(MSG_DEBUG, "Unsupported GUD version 0x%x", *pos); |
| return 0; |
| } |
| pos++; |
| udhl = *pos++; |
| if (pos + udhl > end) { |
| wpa_printf(MSG_DEBUG, "Invalid UDHL"); |
| return 0; |
| } |
| end = pos + udhl; |
| |
| wpa_printf(MSG_DEBUG, "Interworking: Matching against MCC/MNC alternatives: %02x:%02x:%02x or %02x:%02x:%02x (IMSI %s, MNC length %d)", |
| plmn[0], plmn[1], plmn[2], plmn2[0], plmn2[1], plmn2[2], |
| imsi, mnc_len); |
| |
| while (pos + 2 <= end) { |
| u8 iei, len; |
| const u8 *l_end; |
| iei = *pos++; |
| len = *pos++ & 0x7f; |
| if (pos + len > end) |
| break; |
| l_end = pos + len; |
| |
| if (iei == 0 && len > 0) { |
| /* PLMN List */ |
| u8 num, i; |
| wpa_hexdump(MSG_DEBUG, "Interworking: PLMN List information element", |
| pos, len); |
| num = *pos++; |
| for (i = 0; i < num; i++) { |
| if (pos + 3 > l_end) |
| break; |
| if (os_memcmp(pos, plmn, 3) == 0 || |
| os_memcmp(pos, plmn2, 3) == 0) |
| return 1; /* Found matching PLMN */ |
| pos += 3; |
| } |
| } else { |
| wpa_hexdump(MSG_DEBUG, "Interworking: Unrecognized 3GPP information element", |
| pos, len); |
| } |
| |
| pos = l_end; |
| } |
| |
| return 0; |
| } |
| |
| |
| static int build_root_nai(char *nai, size_t nai_len, const char *imsi, |
| size_t mnc_len, char prefix) |
| { |
| const char *sep, *msin; |
| char *end, *pos; |
| size_t msin_len, plmn_len; |
| |
| /* |
| * TS 23.003, Clause 14 (3GPP to WLAN Interworking) |
| * Root NAI: |
| * <aka:0|sim:1><IMSI>@wlan.mnc<MNC>.mcc<MCC>.3gppnetwork.org |
| * <MNC> is zero-padded to three digits in case two-digit MNC is used |
| */ |
| |
| if (imsi == NULL || os_strlen(imsi) > 16) { |
| wpa_printf(MSG_DEBUG, "No valid IMSI available"); |
| return -1; |
| } |
| sep = os_strchr(imsi, '-'); |
| if (sep) { |
| plmn_len = sep - imsi; |
| msin = sep + 1; |
| } else if (mnc_len && os_strlen(imsi) >= 3 + mnc_len) { |
| plmn_len = 3 + mnc_len; |
| msin = imsi + plmn_len; |
| } else |
| return -1; |
| if (plmn_len != 5 && plmn_len != 6) |
| return -1; |
| msin_len = os_strlen(msin); |
| |
| pos = nai; |
| end = nai + nai_len; |
| if (prefix) |
| *pos++ = prefix; |
| os_memcpy(pos, imsi, plmn_len); |
| pos += plmn_len; |
| os_memcpy(pos, msin, msin_len); |
| pos += msin_len; |
| pos += os_snprintf(pos, end - pos, "@wlan.mnc"); |
| if (plmn_len == 5) { |
| *pos++ = '0'; |
| *pos++ = imsi[3]; |
| *pos++ = imsi[4]; |
| } else { |
| *pos++ = imsi[3]; |
| *pos++ = imsi[4]; |
| *pos++ = imsi[5]; |
| } |
| os_snprintf(pos, end - pos, ".mcc%c%c%c.3gppnetwork.org", |
| imsi[0], imsi[1], imsi[2]); |
| |
| return 0; |
| } |
| |
| |
| static int set_root_nai(struct wpa_ssid *ssid, const char *imsi, char prefix) |
| { |
| char nai[100]; |
| if (build_root_nai(nai, sizeof(nai), imsi, 0, prefix) < 0) |
| return -1; |
| return wpa_config_set_quoted(ssid, "identity", nai); |
| } |
| |
| #endif /* INTERWORKING_3GPP */ |
| |
| |
| static int already_connected(struct wpa_supplicant *wpa_s, |
| struct wpa_cred *cred, struct wpa_bss *bss) |
| { |
| struct wpa_ssid *ssid, *sel_ssid; |
| struct wpa_bss *selected; |
| |
| if (wpa_s->wpa_state < WPA_ASSOCIATED || wpa_s->current_ssid == NULL) |
| return 0; |
| |
| ssid = wpa_s->current_ssid; |
| if (ssid->parent_cred != cred) |
| return 0; |
| |
| if (ssid->ssid_len != bss->ssid_len || |
| os_memcmp(ssid->ssid, bss->ssid, bss->ssid_len) != 0) |
| return 0; |
| |
| sel_ssid = NULL; |
| selected = wpa_supplicant_pick_network(wpa_s, &sel_ssid); |
| if (selected && sel_ssid && sel_ssid->priority > ssid->priority) |
| return 0; /* higher priority network in scan results */ |
| |
| return 1; |
| } |
| |
| |
| static void remove_duplicate_network(struct wpa_supplicant *wpa_s, |
| struct wpa_cred *cred, |
| struct wpa_bss *bss) |
| { |
| struct wpa_ssid *ssid; |
| |
| for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { |
| if (ssid->parent_cred != cred) |
| continue; |
| if (ssid->ssid_len != bss->ssid_len || |
| os_memcmp(ssid->ssid, bss->ssid, bss->ssid_len) != 0) |
| continue; |
| |
| break; |
| } |
| |
| if (ssid == NULL) |
| return; |
| |
| wpa_printf(MSG_DEBUG, "Interworking: Remove duplicate network entry for the same credential"); |
| |
| if (ssid == wpa_s->current_ssid) { |
| wpa_sm_set_config(wpa_s->wpa, NULL); |
| eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); |
| wpa_s->own_disconnect_req = 1; |
| wpa_supplicant_deauthenticate(wpa_s, |
| WLAN_REASON_DEAUTH_LEAVING); |
| } |
| |
| wpas_notify_network_removed(wpa_s, ssid); |
| wpa_config_remove_network(wpa_s->conf, ssid->id); |
| } |
| |
| |
| static int interworking_set_hs20_params(struct wpa_supplicant *wpa_s, |
| struct wpa_ssid *ssid) |
| { |
| const char *key_mgmt = NULL; |
| #ifdef CONFIG_IEEE80211R |
| int res; |
| struct wpa_driver_capa capa; |
| |
| res = wpa_drv_get_capa(wpa_s, &capa); |
| if (res == 0 && capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_FT) { |
| key_mgmt = wpa_s->conf->pmf != NO_MGMT_FRAME_PROTECTION ? |
| "WPA-EAP WPA-EAP-SHA256 FT-EAP" : |
| "WPA-EAP FT-EAP"; |
| } |
| #endif /* CONFIG_IEEE80211R */ |
| |
| if (!key_mgmt) |
| key_mgmt = wpa_s->conf->pmf != NO_MGMT_FRAME_PROTECTION ? |
| "WPA-EAP WPA-EAP-SHA256" : "WPA-EAP"; |
| if (wpa_config_set(ssid, "key_mgmt", key_mgmt, 0) < 0) |
| return -1; |
| if (wpa_config_set(ssid, "proto", "RSN", 0) < 0) |
| return -1; |
| if (wpa_config_set(ssid, "pairwise", "CCMP", 0) < 0) |
| return -1; |
| return 0; |
| } |
| |
| |
| static int interworking_connect_3gpp(struct wpa_supplicant *wpa_s, |
| struct wpa_cred *cred, |
| struct wpa_bss *bss, int only_add) |
| { |
| #ifdef INTERWORKING_3GPP |
| struct wpa_ssid *ssid; |
| int eap_type; |
| int res; |
| char prefix; |
| |
| if (bss->anqp == NULL || bss->anqp->anqp_3gpp == NULL) |
| return -1; |
| |
| wpa_msg(wpa_s, MSG_DEBUG, "Interworking: Connect with " MACSTR |
| " (3GPP)", MAC2STR(bss->bssid)); |
| |
| if (already_connected(wpa_s, cred, bss)) { |
| wpa_msg(wpa_s, MSG_INFO, INTERWORKING_ALREADY_CONNECTED MACSTR, |
| MAC2STR(bss->bssid)); |
| return wpa_s->current_ssid->id; |
| } |
| |
| remove_duplicate_network(wpa_s, cred, bss); |
| |
| ssid = wpa_config_add_network(wpa_s->conf); |
| if (ssid == NULL) |
| return -1; |
| ssid->parent_cred = cred; |
| |
| wpas_notify_network_added(wpa_s, ssid); |
| wpa_config_set_network_defaults(ssid); |
| ssid->priority = cred->priority; |
| ssid->temporary = 1; |
| ssid->ssid = os_zalloc(bss->ssid_len + 1); |
| if (ssid->ssid == NULL) |
| goto fail; |
| os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len); |
| ssid->ssid_len = bss->ssid_len; |
| ssid->eap.sim_num = cred->sim_num; |
| |
| if (interworking_set_hs20_params(wpa_s, ssid) < 0) |
| goto fail; |
| |
| eap_type = EAP_TYPE_SIM; |
| if (cred->pcsc && wpa_s->scard && scard_supports_umts(wpa_s->scard)) |
| eap_type = EAP_TYPE_AKA; |
| if (cred->eap_method && cred->eap_method[0].vendor == EAP_VENDOR_IETF) { |
| if (cred->eap_method[0].method == EAP_TYPE_SIM || |
| cred->eap_method[0].method == EAP_TYPE_AKA || |
| cred->eap_method[0].method == EAP_TYPE_AKA_PRIME) |
| eap_type = cred->eap_method[0].method; |
| } |
| |
| switch (eap_type) { |
| case EAP_TYPE_SIM: |
| prefix = '1'; |
| res = wpa_config_set(ssid, "eap", "SIM", 0); |
| break; |
| case EAP_TYPE_AKA: |
| prefix = '0'; |
| res = wpa_config_set(ssid, "eap", "AKA", 0); |
| break; |
| case EAP_TYPE_AKA_PRIME: |
| prefix = '6'; |
| res = wpa_config_set(ssid, "eap", "AKA'", 0); |
| break; |
| default: |
| res = -1; |
| break; |
| } |
| if (res < 0) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Selected EAP method (%d) not supported", eap_type); |
| goto fail; |
| } |
| |
| if (!cred->pcsc && set_root_nai(ssid, cred->imsi, prefix) < 0) { |
| wpa_msg(wpa_s, MSG_DEBUG, "Failed to set Root NAI"); |
| goto fail; |
| } |
| |
| if (cred->milenage && cred->milenage[0]) { |
| if (wpa_config_set_quoted(ssid, "password", |
| cred->milenage) < 0) |
| goto fail; |
| } else if (cred->pcsc) { |
| if (wpa_config_set_quoted(ssid, "pcsc", "") < 0) |
| goto fail; |
| if (wpa_s->conf->pcsc_pin && |
| wpa_config_set_quoted(ssid, "pin", wpa_s->conf->pcsc_pin) |
| < 0) |
| goto fail; |
| } |
| |
| wpa_s->next_ssid = ssid; |
| wpa_config_update_prio_list(wpa_s->conf); |
| if (!only_add) |
| interworking_reconnect(wpa_s); |
| |
| return ssid->id; |
| |
| fail: |
| wpas_notify_network_removed(wpa_s, ssid); |
| wpa_config_remove_network(wpa_s->conf, ssid->id); |
| #endif /* INTERWORKING_3GPP */ |
| return -1; |
| } |
| |
| |
| static int roaming_consortium_element_match(const u8 *ie, const u8 *rc_id, |
| size_t rc_len) |
| { |
| const u8 *pos, *end; |
| u8 lens; |
| |
| if (ie == NULL) |
| return 0; |
| |
| pos = ie + 2; |
| end = ie + 2 + ie[1]; |
| |
| /* Roaming Consortium element: |
| * Number of ANQP OIs |
| * OI #1 and #2 lengths |
| * OI #1, [OI #2], [OI #3] |
| */ |
| |
| if (pos + 2 > end) |
| return 0; |
| |
| pos++; /* skip Number of ANQP OIs */ |
| lens = *pos++; |
| if (pos + (lens & 0x0f) + (lens >> 4) > end) |
| return 0; |
| |
| if ((lens & 0x0f) == rc_len && os_memcmp(pos, rc_id, rc_len) == 0) |
| return 1; |
| pos += lens & 0x0f; |
| |
| if ((lens >> 4) == rc_len && os_memcmp(pos, rc_id, rc_len) == 0) |
| return 1; |
| pos += lens >> 4; |
| |
| if (pos < end && (size_t) (end - pos) == rc_len && |
| os_memcmp(pos, rc_id, rc_len) == 0) |
| return 1; |
| |
| return 0; |
| } |
| |
| |
| static int roaming_consortium_anqp_match(const struct wpabuf *anqp, |
| const u8 *rc_id, size_t rc_len) |
| { |
| const u8 *pos, *end; |
| u8 len; |
| |
| if (anqp == NULL) |
| return 0; |
| |
| pos = wpabuf_head(anqp); |
| end = pos + wpabuf_len(anqp); |
| |
| /* Set of <OI Length, OI> duples */ |
| while (pos < end) { |
| len = *pos++; |
| if (pos + len > end) |
| break; |
| if (len == rc_len && os_memcmp(pos, rc_id, rc_len) == 0) |
| return 1; |
| pos += len; |
| } |
| |
| return 0; |
| } |
| |
| |
| static int roaming_consortium_match(const u8 *ie, const struct wpabuf *anqp, |
| const u8 *rc_id, size_t rc_len) |
| { |
| return roaming_consortium_element_match(ie, rc_id, rc_len) || |
| roaming_consortium_anqp_match(anqp, rc_id, rc_len); |
| } |
| |
| |
| static int cred_no_required_oi_match(struct wpa_cred *cred, struct wpa_bss *bss) |
| { |
| const u8 *ie; |
| |
| if (cred->required_roaming_consortium_len == 0) |
| return 0; |
| |
| ie = wpa_bss_get_ie(bss, WLAN_EID_ROAMING_CONSORTIUM); |
| |
| if (ie == NULL && |
| (bss->anqp == NULL || bss->anqp->roaming_consortium == NULL)) |
| return 1; |
| |
| return !roaming_consortium_match(ie, |
| bss->anqp ? |
| bss->anqp->roaming_consortium : NULL, |
| cred->required_roaming_consortium, |
| cred->required_roaming_consortium_len); |
| } |
| |
| |
| static int cred_excluded_ssid(struct wpa_cred *cred, struct wpa_bss *bss) |
| { |
| size_t i; |
| |
| if (!cred->excluded_ssid) |
| return 0; |
| |
| for (i = 0; i < cred->num_excluded_ssid; i++) { |
| struct excluded_ssid *e = &cred->excluded_ssid[i]; |
| if (bss->ssid_len == e->ssid_len && |
| os_memcmp(bss->ssid, e->ssid, e->ssid_len) == 0) |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| |
| static int cred_below_min_backhaul(struct wpa_supplicant *wpa_s, |
| struct wpa_cred *cred, struct wpa_bss *bss) |
| { |
| int res; |
| unsigned int dl_bandwidth, ul_bandwidth; |
| const u8 *wan; |
| u8 wan_info, dl_load, ul_load; |
| u16 lmd; |
| u32 ul_speed, dl_speed; |
| |
| if (!cred->min_dl_bandwidth_home && |
| !cred->min_ul_bandwidth_home && |
| !cred->min_dl_bandwidth_roaming && |
| !cred->min_ul_bandwidth_roaming) |
| return 0; /* No bandwidth constraint specified */ |
| |
| if (bss->anqp == NULL || bss->anqp->hs20_wan_metrics == NULL) |
| return 0; /* No WAN Metrics known - ignore constraint */ |
| |
| wan = wpabuf_head(bss->anqp->hs20_wan_metrics); |
| wan_info = wan[0]; |
| if (wan_info & BIT(3)) |
| return 1; /* WAN link at capacity */ |
| lmd = WPA_GET_LE16(wan + 11); |
| if (lmd == 0) |
| return 0; /* Downlink/Uplink Load was not measured */ |
| dl_speed = WPA_GET_LE32(wan + 1); |
| ul_speed = WPA_GET_LE32(wan + 5); |
| dl_load = wan[9]; |
| ul_load = wan[10]; |
| |
| if (dl_speed >= 0xffffff) |
| dl_bandwidth = dl_speed / 255 * (255 - dl_load); |
| else |
| dl_bandwidth = dl_speed * (255 - dl_load) / 255; |
| |
| if (ul_speed >= 0xffffff) |
| ul_bandwidth = ul_speed / 255 * (255 - ul_load); |
| else |
| ul_bandwidth = ul_speed * (255 - ul_load) / 255; |
| |
| res = interworking_home_sp_cred(wpa_s, cred, bss->anqp ? |
| bss->anqp->domain_name : NULL); |
| if (res > 0) { |
| if (cred->min_dl_bandwidth_home > dl_bandwidth) |
| return 1; |
| if (cred->min_ul_bandwidth_home > ul_bandwidth) |
| return 1; |
| } else { |
| if (cred->min_dl_bandwidth_roaming > dl_bandwidth) |
| return 1; |
| if (cred->min_ul_bandwidth_roaming > ul_bandwidth) |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| |
| static int cred_over_max_bss_load(struct wpa_supplicant *wpa_s, |
| struct wpa_cred *cred, struct wpa_bss *bss) |
| { |
| const u8 *ie; |
| int res; |
| |
| if (!cred->max_bss_load) |
| return 0; /* No BSS Load constraint specified */ |
| |
| ie = wpa_bss_get_ie(bss, WLAN_EID_BSS_LOAD); |
| if (ie == NULL || ie[1] < 3) |
| return 0; /* No BSS Load advertised */ |
| |
| res = interworking_home_sp_cred(wpa_s, cred, bss->anqp ? |
| bss->anqp->domain_name : NULL); |
| if (res <= 0) |
| return 0; /* Not a home network */ |
| |
| return ie[4] > cred->max_bss_load; |
| } |
| |
| |
| static int has_proto_match(const u8 *pos, const u8 *end, u8 proto) |
| { |
| while (pos + 4 <= end) { |
| if (pos[0] == proto && pos[3] == 1 /* Open */) |
| return 1; |
| pos += 4; |
| } |
| |
| return 0; |
| } |
| |
| |
| static int has_proto_port_match(const u8 *pos, const u8 *end, u8 proto, |
| u16 port) |
| { |
| while (pos + 4 <= end) { |
| if (pos[0] == proto && WPA_GET_LE16(&pos[1]) == port && |
| pos[3] == 1 /* Open */) |
| return 1; |
| pos += 4; |
| } |
| |
| return 0; |
| } |
| |
| |
| static int cred_conn_capab_missing(struct wpa_supplicant *wpa_s, |
| struct wpa_cred *cred, struct wpa_bss *bss) |
| { |
| int res; |
| const u8 *capab, *end; |
| unsigned int i, j; |
| int *ports; |
| |
| if (!cred->num_req_conn_capab) |
| return 0; /* No connection capability constraint specified */ |
| |
| if (bss->anqp == NULL || bss->anqp->hs20_connection_capability == NULL) |
| return 0; /* No Connection Capability known - ignore constraint |
| */ |
| |
| res = interworking_home_sp_cred(wpa_s, cred, bss->anqp ? |
| bss->anqp->domain_name : NULL); |
| if (res > 0) |
| return 0; /* No constraint in home network */ |
| |
| capab = wpabuf_head(bss->anqp->hs20_connection_capability); |
| end = capab + wpabuf_len(bss->anqp->hs20_connection_capability); |
| |
| for (i = 0; i < cred->num_req_conn_capab; i++) { |
| ports = cred->req_conn_capab_port[i]; |
| if (!ports) { |
| if (!has_proto_match(capab, end, |
| cred->req_conn_capab_proto[i])) |
| return 1; |
| } else { |
| for (j = 0; ports[j] > -1; j++) { |
| if (!has_proto_port_match( |
| capab, end, |
| cred->req_conn_capab_proto[i], |
| ports[j])) |
| return 1; |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| |
| static struct wpa_cred * interworking_credentials_available_roaming_consortium( |
| struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int ignore_bw, |
| int *excluded) |
| { |
| struct wpa_cred *cred, *selected = NULL; |
| const u8 *ie; |
| int is_excluded = 0; |
| |
| ie = wpa_bss_get_ie(bss, WLAN_EID_ROAMING_CONSORTIUM); |
| |
| if (ie == NULL && |
| (bss->anqp == NULL || bss->anqp->roaming_consortium == NULL)) |
| return NULL; |
| |
| if (wpa_s->conf->cred == NULL) |
| return NULL; |
| |
| for (cred = wpa_s->conf->cred; cred; cred = cred->next) { |
| if (cred->roaming_consortium_len == 0) |
| continue; |
| |
| if (!roaming_consortium_match(ie, |
| bss->anqp ? |
| bss->anqp->roaming_consortium : |
| NULL, |
| cred->roaming_consortium, |
| cred->roaming_consortium_len)) |
| continue; |
| |
| if (cred_no_required_oi_match(cred, bss)) |
| continue; |
| if (!ignore_bw && cred_below_min_backhaul(wpa_s, cred, bss)) |
| continue; |
| if (!ignore_bw && cred_over_max_bss_load(wpa_s, cred, bss)) |
| continue; |
| if (!ignore_bw && cred_conn_capab_missing(wpa_s, cred, bss)) |
| continue; |
| if (cred_excluded_ssid(cred, bss)) { |
| if (excluded == NULL) |
| continue; |
| if (selected == NULL) { |
| selected = cred; |
| is_excluded = 1; |
| } |
| } else { |
| if (selected == NULL || is_excluded || |
| cred_prio_cmp(selected, cred) < 0) { |
| selected = cred; |
| is_excluded = 0; |
| } |
| } |
| } |
| |
| if (excluded) |
| *excluded = is_excluded; |
| |
| return selected; |
| } |
| |
| |
| static int interworking_set_eap_params(struct wpa_ssid *ssid, |
| struct wpa_cred *cred, int ttls) |
| { |
| if (cred->eap_method) { |
| ttls = cred->eap_method->vendor == EAP_VENDOR_IETF && |
| cred->eap_method->method == EAP_TYPE_TTLS; |
| |
| os_free(ssid->eap.eap_methods); |
| ssid->eap.eap_methods = |
| os_malloc(sizeof(struct eap_method_type) * 2); |
| if (ssid->eap.eap_methods == NULL) |
| return -1; |
| os_memcpy(ssid->eap.eap_methods, cred->eap_method, |
| sizeof(*cred->eap_method)); |
| ssid->eap.eap_methods[1].vendor = EAP_VENDOR_IETF; |
| ssid->eap.eap_methods[1].method = EAP_TYPE_NONE; |
| } |
| |
| if (ttls && cred->username && cred->username[0]) { |
| const char *pos; |
| char *anon; |
| /* Use anonymous NAI in Phase 1 */ |
| pos = os_strchr(cred->username, '@'); |
| if (pos) { |
| size_t buflen = 9 + os_strlen(pos) + 1; |
| anon = os_malloc(buflen); |
| if (anon == NULL) |
| return -1; |
| os_snprintf(anon, buflen, "anonymous%s", pos); |
| } else if (cred->realm) { |
| size_t buflen = 10 + os_strlen(cred->realm) + 1; |
| anon = os_malloc(buflen); |
| if (anon == NULL) |
| return -1; |
| os_snprintf(anon, buflen, "anonymous@%s", cred->realm); |
| } else { |
| anon = os_strdup("anonymous"); |
| if (anon == NULL) |
| return -1; |
| } |
| if (wpa_config_set_quoted(ssid, "anonymous_identity", anon) < |
| 0) { |
| os_free(anon); |
| return -1; |
| } |
| os_free(anon); |
| } |
| |
| if (cred->username && cred->username[0] && |
| wpa_config_set_quoted(ssid, "identity", cred->username) < 0) |
| return -1; |
| |
| if (cred->password && cred->password[0]) { |
| if (cred->ext_password && |
| wpa_config_set(ssid, "password", cred->password, 0) < 0) |
| return -1; |
| if (!cred->ext_password && |
| wpa_config_set_quoted(ssid, "password", cred->password) < |
| 0) |
| return -1; |
| } |
| |
| if (cred->client_cert && cred->client_cert[0] && |
| wpa_config_set_quoted(ssid, "client_cert", cred->client_cert) < 0) |
| return -1; |
| |
| #ifdef ANDROID |
| if (cred->private_key && |
| os_strncmp(cred->private_key, "keystore://", 11) == 0) { |
| /* Use OpenSSL engine configuration for Android keystore */ |
| if (wpa_config_set_quoted(ssid, "engine_id", "keystore") < 0 || |
| wpa_config_set_quoted(ssid, "key_id", |
| cred->private_key + 11) < 0 || |
| wpa_config_set(ssid, "engine", "1", 0) < 0) |
| return -1; |
| } else |
| #endif /* ANDROID */ |
| if (cred->private_key && cred->private_key[0] && |
| wpa_config_set_quoted(ssid, "private_key", cred->private_key) < 0) |
| return -1; |
| |
| if (cred->private_key_passwd && cred->private_key_passwd[0] && |
| wpa_config_set_quoted(ssid, "private_key_passwd", |
| cred->private_key_passwd) < 0) |
| return -1; |
| |
| if (cred->phase1) { |
| os_free(ssid->eap.phase1); |
| ssid->eap.phase1 = os_strdup(cred->phase1); |
| } |
| if (cred->phase2) { |
| os_free(ssid->eap.phase2); |
| ssid->eap.phase2 = os_strdup(cred->phase2); |
| } |
| |
| if (cred->ca_cert && cred->ca_cert[0] && |
| wpa_config_set_quoted(ssid, "ca_cert", cred->ca_cert) < 0) |
| return -1; |
| |
| if (cred->domain_suffix_match && cred->domain_suffix_match[0] && |
| wpa_config_set_quoted(ssid, "domain_suffix_match", |
| cred->domain_suffix_match) < 0) |
| return -1; |
| |
| ssid->eap.ocsp = cred->ocsp; |
| |
| return 0; |
| } |
| |
| |
| static int interworking_connect_roaming_consortium( |
| struct wpa_supplicant *wpa_s, struct wpa_cred *cred, |
| struct wpa_bss *bss, int only_add) |
| { |
| struct wpa_ssid *ssid; |
| |
| wpa_msg(wpa_s, MSG_DEBUG, "Interworking: Connect with " MACSTR |
| " based on roaming consortium match", MAC2STR(bss->bssid)); |
| |
| if (already_connected(wpa_s, cred, bss)) { |
| wpa_msg(wpa_s, MSG_INFO, INTERWORKING_ALREADY_CONNECTED MACSTR, |
| MAC2STR(bss->bssid)); |
| return wpa_s->current_ssid->id; |
| } |
| |
| remove_duplicate_network(wpa_s, cred, bss); |
| |
| ssid = wpa_config_add_network(wpa_s->conf); |
| if (ssid == NULL) |
| return -1; |
| ssid->parent_cred = cred; |
| wpas_notify_network_added(wpa_s, ssid); |
| wpa_config_set_network_defaults(ssid); |
| ssid->priority = cred->priority; |
| ssid->temporary = 1; |
| ssid->ssid = os_zalloc(bss->ssid_len + 1); |
| if (ssid->ssid == NULL) |
| goto fail; |
| os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len); |
| ssid->ssid_len = bss->ssid_len; |
| |
| if (interworking_set_hs20_params(wpa_s, ssid) < 0) |
| goto fail; |
| |
| if (cred->eap_method == NULL) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: No EAP method set for credential using roaming consortium"); |
| goto fail; |
| } |
| |
| if (interworking_set_eap_params( |
| ssid, cred, |
| cred->eap_method->vendor == EAP_VENDOR_IETF && |
| cred->eap_method->method == EAP_TYPE_TTLS) < 0) |
| goto fail; |
| |
| wpa_s->next_ssid = ssid; |
| wpa_config_update_prio_list(wpa_s->conf); |
| if (!only_add) |
| interworking_reconnect(wpa_s); |
| |
| return ssid->id; |
| |
| fail: |
| wpas_notify_network_removed(wpa_s, ssid); |
| wpa_config_remove_network(wpa_s->conf, ssid->id); |
| return -1; |
| } |
| |
| |
| static int interworking_connect_helper(struct wpa_supplicant *wpa_s, |
| struct wpa_bss *bss, int allow_excluded, |
| int only_add) |
| { |
| struct wpa_cred *cred, *cred_rc, *cred_3gpp; |
| struct wpa_ssid *ssid; |
| struct nai_realm *realm; |
| struct nai_realm_eap *eap = NULL; |
| u16 count, i; |
| char buf[100]; |
| int excluded = 0, *excl = allow_excluded ? &excluded : NULL; |
| const char *name; |
| |
| if (wpa_s->conf->cred == NULL || bss == NULL) |
| return -1; |
| if (disallowed_bssid(wpa_s, bss->bssid) || |
| disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: Reject connection to disallowed BSS " |
| MACSTR, MAC2STR(bss->bssid)); |
| return -1; |
| } |
| |
| wpa_printf(MSG_DEBUG, "Interworking: Considering BSS " MACSTR |
| " for connection (allow_excluded=%d)", |
| MAC2STR(bss->bssid), allow_excluded); |
| |
| if (!wpa_bss_get_ie(bss, WLAN_EID_RSN)) { |
| /* |
| * We currently support only HS 2.0 networks and those are |
| * required to use WPA2-Enterprise. |
| */ |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: Network does not use RSN"); |
| return -1; |
| } |
| |
| cred_rc = interworking_credentials_available_roaming_consortium( |
| wpa_s, bss, 0, excl); |
| if (cred_rc) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: Highest roaming consortium matching credential priority %d sp_priority %d", |
| cred_rc->priority, cred_rc->sp_priority); |
| if (allow_excluded && excl && !(*excl)) |
| excl = NULL; |
| } |
| |
| cred = interworking_credentials_available_realm(wpa_s, bss, 0, excl); |
| if (cred) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: Highest NAI Realm list matching credential priority %d sp_priority %d", |
| cred->priority, cred->sp_priority); |
| if (allow_excluded && excl && !(*excl)) |
| excl = NULL; |
| } |
| |
| cred_3gpp = interworking_credentials_available_3gpp(wpa_s, bss, 0, |
| excl); |
| if (cred_3gpp) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: Highest 3GPP matching credential priority %d sp_priority %d", |
| cred_3gpp->priority, cred_3gpp->sp_priority); |
| if (allow_excluded && excl && !(*excl)) |
| excl = NULL; |
| } |
| |
| if (!cred_rc && !cred && !cred_3gpp) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: No full credential matches - consider options without BW(etc.) limits"); |
| cred_rc = interworking_credentials_available_roaming_consortium( |
| wpa_s, bss, 1, excl); |
| if (cred_rc) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: Highest roaming consortium matching credential priority %d sp_priority %d (ignore BW)", |
| cred_rc->priority, cred_rc->sp_priority); |
| if (allow_excluded && excl && !(*excl)) |
| excl = NULL; |
| } |
| |
| cred = interworking_credentials_available_realm(wpa_s, bss, 1, |
| excl); |
| if (cred) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: Highest NAI Realm list matching credential priority %d sp_priority %d (ignore BW)", |
| cred->priority, cred->sp_priority); |
| if (allow_excluded && excl && !(*excl)) |
| excl = NULL; |
| } |
| |
| cred_3gpp = interworking_credentials_available_3gpp(wpa_s, bss, |
| 1, excl); |
| if (cred_3gpp) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: Highest 3GPP matching credential priority %d sp_priority %d (ignore BW)", |
| cred_3gpp->priority, cred_3gpp->sp_priority); |
| if (allow_excluded && excl && !(*excl)) |
| excl = NULL; |
| } |
| } |
| |
| if (cred_rc && |
| (cred == NULL || cred_prio_cmp(cred_rc, cred) >= 0) && |
| (cred_3gpp == NULL || cred_prio_cmp(cred_rc, cred_3gpp) >= 0)) |
| return interworking_connect_roaming_consortium(wpa_s, cred_rc, |
| bss, only_add); |
| |
| if (cred_3gpp && |
| (cred == NULL || cred_prio_cmp(cred_3gpp, cred) >= 0)) { |
| return interworking_connect_3gpp(wpa_s, cred_3gpp, bss, |
| only_add); |
| } |
| |
| if (cred == NULL) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: No matching credentials found for " |
| MACSTR, MAC2STR(bss->bssid)); |
| return -1; |
| } |
| |
| realm = nai_realm_parse(bss->anqp ? bss->anqp->nai_realm : NULL, |
| &count); |
| if (realm == NULL) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: Could not parse NAI Realm list from " |
| MACSTR, MAC2STR(bss->bssid)); |
| return -1; |
| } |
| |
| for (i = 0; i < count; i++) { |
| if (!nai_realm_match(&realm[i], cred->realm)) |
| continue; |
| eap = nai_realm_find_eap(wpa_s, cred, &realm[i]); |
| if (eap) |
| break; |
| } |
| |
| if (!eap) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: No matching credentials and EAP method found for " |
| MACSTR, MAC2STR(bss->bssid)); |
| nai_realm_free(realm, count); |
| return -1; |
| } |
| |
| wpa_msg(wpa_s, MSG_DEBUG, "Interworking: Connect with " MACSTR, |
| MAC2STR(bss->bssid)); |
| |
| if (already_connected(wpa_s, cred, bss)) { |
| wpa_msg(wpa_s, MSG_INFO, INTERWORKING_ALREADY_CONNECTED MACSTR, |
| MAC2STR(bss->bssid)); |
| nai_realm_free(realm, count); |
| return 0; |
| } |
| |
| remove_duplicate_network(wpa_s, cred, bss); |
| |
| ssid = wpa_config_add_network(wpa_s->conf); |
| if (ssid == NULL) { |
| nai_realm_free(realm, count); |
| return -1; |
| } |
| ssid->parent_cred = cred; |
| wpas_notify_network_added(wpa_s, ssid); |
| wpa_config_set_network_defaults(ssid); |
| ssid->priority = cred->priority; |
| ssid->temporary = 1; |
| ssid->ssid = os_zalloc(bss->ssid_len + 1); |
| if (ssid->ssid == NULL) |
| goto fail; |
| os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len); |
| ssid->ssid_len = bss->ssid_len; |
| |
| if (interworking_set_hs20_params(wpa_s, ssid) < 0) |
| goto fail; |
| |
| if (wpa_config_set(ssid, "eap", eap_get_name(EAP_VENDOR_IETF, |
| eap->method), 0) < 0) |
| goto fail; |
| |
| switch (eap->method) { |
| case EAP_TYPE_TTLS: |
| if (eap->inner_method) { |
| os_snprintf(buf, sizeof(buf), "\"autheap=%s\"", |
| eap_get_name(EAP_VENDOR_IETF, |
| eap->inner_method)); |
| if (wpa_config_set(ssid, "phase2", buf, 0) < 0) |
| goto fail; |
| break; |
| } |
| switch (eap->inner_non_eap) { |
| case NAI_REALM_INNER_NON_EAP_PAP: |
| if (wpa_config_set(ssid, "phase2", "\"auth=PAP\"", 0) < |
| 0) |
| goto fail; |
| break; |
| case NAI_REALM_INNER_NON_EAP_CHAP: |
| if (wpa_config_set(ssid, "phase2", "\"auth=CHAP\"", 0) |
| < 0) |
| goto fail; |
| break; |
| case NAI_REALM_INNER_NON_EAP_MSCHAP: |
| if (wpa_config_set(ssid, "phase2", "\"auth=MSCHAP\"", |
| 0) < 0) |
| goto fail; |
| break; |
| case NAI_REALM_INNER_NON_EAP_MSCHAPV2: |
| if (wpa_config_set(ssid, "phase2", "\"auth=MSCHAPV2\"", |
| 0) < 0) |
| goto fail; |
| break; |
| default: |
| /* EAP params were not set - assume TTLS/MSCHAPv2 */ |
| if (wpa_config_set(ssid, "phase2", "\"auth=MSCHAPV2\"", |
| 0) < 0) |
| goto fail; |
| break; |
| } |
| break; |
| case EAP_TYPE_PEAP: |
| case EAP_TYPE_FAST: |
| if (wpa_config_set(ssid, "phase1", "\"fast_provisioning=2\"", |
| 0) < 0) |
| goto fail; |
| if (wpa_config_set(ssid, "pac_file", |
| "\"blob://pac_interworking\"", 0) < 0) |
| goto fail; |
| name = eap_get_name(EAP_VENDOR_IETF, |
| eap->inner_method ? eap->inner_method : |
| EAP_TYPE_MSCHAPV2); |
| if (name == NULL) |
| goto fail; |
| os_snprintf(buf, sizeof(buf), "\"auth=%s\"", name); |
| if (wpa_config_set(ssid, "phase2", buf, 0) < 0) |
| goto fail; |
| break; |
| case EAP_TYPE_TLS: |
| break; |
| } |
| |
| if (interworking_set_eap_params(ssid, cred, |
| eap->method == EAP_TYPE_TTLS) < 0) |
| goto fail; |
| |
| nai_realm_free(realm, count); |
| |
| wpa_s->next_ssid = ssid; |
| wpa_config_update_prio_list(wpa_s->conf); |
| if (!only_add) |
| interworking_reconnect(wpa_s); |
| |
| return ssid->id; |
| |
| fail: |
| wpas_notify_network_removed(wpa_s, ssid); |
| wpa_config_remove_network(wpa_s->conf, ssid->id); |
| nai_realm_free(realm, count); |
| return -1; |
| } |
| |
| |
| int interworking_connect(struct wpa_supplicant *wpa_s, struct wpa_bss *bss, |
| int only_add) |
| { |
| return interworking_connect_helper(wpa_s, bss, 1, only_add); |
| } |
| |
| |
| #ifdef PCSC_FUNCS |
| static int interworking_pcsc_read_imsi(struct wpa_supplicant *wpa_s) |
| { |
| size_t len; |
| |
| if (wpa_s->imsi[0] && wpa_s->mnc_len) |
| return 0; |
| |
| len = sizeof(wpa_s->imsi) - 1; |
| if (scard_get_imsi(wpa_s->scard, wpa_s->imsi, &len)) { |
| scard_deinit(wpa_s->scard); |
| wpa_s->scard = NULL; |
| wpa_msg(wpa_s, MSG_ERROR, "Could not read IMSI"); |
| return -1; |
| } |
| wpa_s->imsi[len] = '\0'; |
| wpa_s->mnc_len = scard_get_mnc_len(wpa_s->scard); |
| wpa_printf(MSG_DEBUG, "SCARD: IMSI %s (MNC length %d)", |
| wpa_s->imsi, wpa_s->mnc_len); |
| |
| return 0; |
| } |
| #endif /* PCSC_FUNCS */ |
| |
| |
| static struct wpa_cred * interworking_credentials_available_3gpp( |
| struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int ignore_bw, |
| int *excluded) |
| { |
| struct wpa_cred *selected = NULL; |
| #ifdef INTERWORKING_3GPP |
| struct wpa_cred *cred; |
| int ret; |
| int is_excluded = 0; |
| |
| if (bss->anqp == NULL || bss->anqp->anqp_3gpp == NULL) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "interworking-avail-3gpp: not avail, anqp: %p anqp_3gpp: %p", |
| bss->anqp, bss->anqp ? bss->anqp->anqp_3gpp : NULL); |
| return NULL; |
| } |
| |
| #ifdef CONFIG_EAP_PROXY |
| if (!wpa_s->imsi[0]) { |
| size_t len; |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: IMSI not available - try to read again through eap_proxy"); |
| wpa_s->mnc_len = eapol_sm_get_eap_proxy_imsi(wpa_s->eapol, |
| wpa_s->imsi, |
| &len); |
| if (wpa_s->mnc_len > 0) { |
| wpa_s->imsi[len] = '\0'; |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "eap_proxy: IMSI %s (MNC length %d)", |
| wpa_s->imsi, wpa_s->mnc_len); |
| } else { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "eap_proxy: IMSI not available"); |
| } |
| } |
| #endif /* CONFIG_EAP_PROXY */ |
| |
| for (cred = wpa_s->conf->cred; cred; cred = cred->next) { |
| char *sep; |
| const char *imsi; |
| int mnc_len; |
| char imsi_buf[16]; |
| size_t msin_len; |
| |
| #ifdef PCSC_FUNCS |
| if (cred->pcsc && wpa_s->scard) { |
| if (interworking_pcsc_read_imsi(wpa_s) < 0) |
| continue; |
| imsi = wpa_s->imsi; |
| mnc_len = wpa_s->mnc_len; |
| goto compare; |
| } |
| #endif /* PCSC_FUNCS */ |
| #ifdef CONFIG_EAP_PROXY |
| if (cred->pcsc && wpa_s->mnc_len > 0 && wpa_s->imsi[0]) { |
| imsi = wpa_s->imsi; |
| mnc_len = wpa_s->mnc_len; |
| goto compare; |
| } |
| #endif /* CONFIG_EAP_PROXY */ |
| |
| if (cred->imsi == NULL || !cred->imsi[0] || |
| (!wpa_s->conf->external_sim && |
| (cred->milenage == NULL || !cred->milenage[0]))) |
| continue; |
| |
| sep = os_strchr(cred->imsi, '-'); |
| if (sep == NULL || |
| (sep - cred->imsi != 5 && sep - cred->imsi != 6)) |
| continue; |
| mnc_len = sep - cred->imsi - 3; |
| os_memcpy(imsi_buf, cred->imsi, 3 + mnc_len); |
| sep++; |
| msin_len = os_strlen(cred->imsi); |
| if (3 + mnc_len + msin_len >= sizeof(imsi_buf) - 1) |
| msin_len = sizeof(imsi_buf) - 3 - mnc_len - 1; |
| os_memcpy(&imsi_buf[3 + mnc_len], sep, msin_len); |
| imsi_buf[3 + mnc_len + msin_len] = '\0'; |
| imsi = imsi_buf; |
| |
| #if defined(PCSC_FUNCS) || defined(CONFIG_EAP_PROXY) |
| compare: |
| #endif /* PCSC_FUNCS || CONFIG_EAP_PROXY */ |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: Parsing 3GPP info from " MACSTR, |
| MAC2STR(bss->bssid)); |
| ret = plmn_id_match(bss->anqp->anqp_3gpp, imsi, mnc_len); |
| wpa_msg(wpa_s, MSG_DEBUG, "PLMN match %sfound", |
| ret ? "" : "not "); |
| if (ret) { |
| if (cred_no_required_oi_match(cred, bss)) |
| continue; |
| if (!ignore_bw && |
| cred_below_min_backhaul(wpa_s, cred, bss)) |
| continue; |
| if (!ignore_bw && |
| cred_over_max_bss_load(wpa_s, cred, bss)) |
| continue; |
| if (!ignore_bw && |
| cred_conn_capab_missing(wpa_s, cred, bss)) |
| continue; |
| if (cred_excluded_ssid(cred, bss)) { |
| if (excluded == NULL) |
| continue; |
| if (selected == NULL) { |
| selected = cred; |
| is_excluded = 1; |
| } |
| } else { |
| if (selected == NULL || is_excluded || |
| cred_prio_cmp(selected, cred) < 0) { |
| selected = cred; |
| is_excluded = 0; |
| } |
| } |
| } |
| } |
| |
| if (excluded) |
| *excluded = is_excluded; |
| #endif /* INTERWORKING_3GPP */ |
| return selected; |
| } |
| |
| |
| static struct wpa_cred * interworking_credentials_available_realm( |
| struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int ignore_bw, |
| int *excluded) |
| { |
| struct wpa_cred *cred, *selected = NULL; |
| struct nai_realm *realm; |
| u16 count, i; |
| int is_excluded = 0; |
| |
| if (bss->anqp == NULL || bss->anqp->nai_realm == NULL) |
| return NULL; |
| |
| if (wpa_s->conf->cred == NULL) |
| return NULL; |
| |
| wpa_msg(wpa_s, MSG_DEBUG, "Interworking: Parsing NAI Realm list from " |
| MACSTR, MAC2STR(bss->bssid)); |
| realm = nai_realm_parse(bss->anqp->nai_realm, &count); |
| if (realm == NULL) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: Could not parse NAI Realm list from " |
| MACSTR, MAC2STR(bss->bssid)); |
| return NULL; |
| } |
| |
| for (cred = wpa_s->conf->cred; cred; cred = cred->next) { |
| if (cred->realm == NULL) |
| continue; |
| |
| for (i = 0; i < count; i++) { |
| if (!nai_realm_match(&realm[i], cred->realm)) |
| continue; |
| if (nai_realm_find_eap(wpa_s, cred, &realm[i])) { |
| if (cred_no_required_oi_match(cred, bss)) |
| continue; |
| if (!ignore_bw && |
| cred_below_min_backhaul(wpa_s, cred, bss)) |
| continue; |
| if (!ignore_bw && |
| cred_over_max_bss_load(wpa_s, cred, bss)) |
| continue; |
| if (!ignore_bw && |
| cred_conn_capab_missing(wpa_s, cred, bss)) |
| continue; |
| if (cred_excluded_ssid(cred, bss)) { |
| if (excluded == NULL) |
| continue; |
| if (selected == NULL) { |
| selected = cred; |
| is_excluded = 1; |
| } |
| } else { |
| if (selected == NULL || is_excluded || |
| cred_prio_cmp(selected, cred) < 0) |
| { |
| selected = cred; |
| is_excluded = 0; |
| } |
| } |
| break; |
| } else { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: realm-find-eap returned false"); |
| } |
| } |
| } |
| |
| nai_realm_free(realm, count); |
| |
| if (excluded) |
| *excluded = is_excluded; |
| |
| return selected; |
| } |
| |
| |
| static struct wpa_cred * interworking_credentials_available_helper( |
| struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int ignore_bw, |
| int *excluded) |
| { |
| struct wpa_cred *cred, *cred2; |
| int excluded1, excluded2; |
| |
| if (disallowed_bssid(wpa_s, bss->bssid) || |
| disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) { |
| wpa_printf(MSG_DEBUG, "Interworking: Ignore disallowed BSS " |
| MACSTR, MAC2STR(bss->bssid)); |
| return NULL; |
| } |
| |
| cred = interworking_credentials_available_realm(wpa_s, bss, ignore_bw, |
| &excluded1); |
| cred2 = interworking_credentials_available_3gpp(wpa_s, bss, ignore_bw, |
| &excluded2); |
| if (cred && cred2 && |
| (cred_prio_cmp(cred2, cred) >= 0 || (!excluded2 && excluded1))) { |
| cred = cred2; |
| excluded1 = excluded2; |
| } |
| if (!cred) { |
| cred = cred2; |
| excluded1 = excluded2; |
| } |
| |
| cred2 = interworking_credentials_available_roaming_consortium( |
| wpa_s, bss, ignore_bw, &excluded2); |
| if (cred && cred2 && |
| (cred_prio_cmp(cred2, cred) >= 0 || (!excluded2 && excluded1))) { |
| cred = cred2; |
| excluded1 = excluded2; |
| } |
| if (!cred) { |
| cred = cred2; |
| excluded1 = excluded2; |
| } |
| |
| if (excluded) |
| *excluded = excluded1; |
| return cred; |
| } |
| |
| |
| static struct wpa_cred * interworking_credentials_available( |
| struct wpa_supplicant *wpa_s, struct wpa_bss *bss, int *excluded) |
| { |
| struct wpa_cred *cred; |
| |
| if (excluded) |
| *excluded = 0; |
| cred = interworking_credentials_available_helper(wpa_s, bss, 0, |
| excluded); |
| if (cred) |
| return cred; |
| return interworking_credentials_available_helper(wpa_s, bss, 1, |
| excluded); |
| } |
| |
| |
| int domain_name_list_contains(struct wpabuf *domain_names, |
| const char *domain, int exact_match) |
| { |
| const u8 *pos, *end; |
| size_t len; |
| |
| len = os_strlen(domain); |
| pos = wpabuf_head(domain_names); |
| end = pos + wpabuf_len(domain_names); |
| |
| while (pos + 1 < end) { |
| if (pos + 1 + pos[0] > end) |
| break; |
| |
| wpa_hexdump_ascii(MSG_DEBUG, "Interworking: AP domain name", |
| pos + 1, pos[0]); |
| if (pos[0] == len && |
| os_strncasecmp(domain, (const char *) (pos + 1), len) == 0) |
| return 1; |
| if (!exact_match && pos[0] > len && pos[pos[0] - len] == '.') { |
| const char *ap = (const char *) (pos + 1); |
| int offset = pos[0] - len; |
| if (os_strncasecmp(domain, ap + offset, len) == 0) |
| return 1; |
| } |
| |
| pos += 1 + pos[0]; |
| } |
| |
| return 0; |
| } |
| |
| |
| int interworking_home_sp_cred(struct wpa_supplicant *wpa_s, |
| struct wpa_cred *cred, |
| struct wpabuf *domain_names) |
| { |
| size_t i; |
| int ret = -1; |
| #ifdef INTERWORKING_3GPP |
| char nai[100], *realm; |
| |
| char *imsi = NULL; |
| int mnc_len = 0; |
| if (cred->imsi) |
| imsi = cred->imsi; |
| #ifdef PCSC_FUNCS |
| else if (cred->pcsc && wpa_s->scard) { |
| if (interworking_pcsc_read_imsi(wpa_s) < 0) |
| return -1; |
| imsi = wpa_s->imsi; |
| mnc_len = wpa_s->mnc_len; |
| } |
| #endif /* PCSC_FUNCS */ |
| #ifdef CONFIG_EAP_PROXY |
| else if (cred->pcsc && wpa_s->mnc_len > 0 && wpa_s->imsi[0]) { |
| imsi = wpa_s->imsi; |
| mnc_len = wpa_s->mnc_len; |
| } |
| #endif /* CONFIG_EAP_PROXY */ |
| if (domain_names && |
| imsi && build_root_nai(nai, sizeof(nai), imsi, mnc_len, 0) == 0) { |
| realm = os_strchr(nai, '@'); |
| if (realm) |
| realm++; |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: Search for match with SIM/USIM domain %s", |
| realm); |
| if (realm && |
| domain_name_list_contains(domain_names, realm, 1)) |
| return 1; |
| if (realm) |
| ret = 0; |
| } |
| #endif /* INTERWORKING_3GPP */ |
| |
| if (domain_names == NULL || cred->domain == NULL) |
| return ret; |
| |
| for (i = 0; i < cred->num_domain; i++) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: Search for match with home SP FQDN %s", |
| cred->domain[i]); |
| if (domain_name_list_contains(domain_names, cred->domain[i], 1)) |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| |
| static int interworking_home_sp(struct wpa_supplicant *wpa_s, |
| struct wpabuf *domain_names) |
| { |
| struct wpa_cred *cred; |
| |
| if (domain_names == NULL || wpa_s->conf->cred == NULL) |
| return -1; |
| |
| for (cred = wpa_s->conf->cred; cred; cred = cred->next) { |
| int res = interworking_home_sp_cred(wpa_s, cred, domain_names); |
| if (res) |
| return res; |
| } |
| |
| return 0; |
| } |
| |
| |
| static int interworking_find_network_match(struct wpa_supplicant *wpa_s) |
| { |
| struct wpa_bss *bss; |
| struct wpa_ssid *ssid; |
| |
| dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { |
| for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { |
| if (wpas_network_disabled(wpa_s, ssid) || |
| ssid->mode != WPAS_MODE_INFRA) |
| continue; |
| if (ssid->ssid_len != bss->ssid_len || |
| os_memcmp(ssid->ssid, bss->ssid, ssid->ssid_len) != |
| 0) |
| continue; |
| /* |
| * TODO: Consider more accurate matching of security |
| * configuration similarly to what is done in events.c |
| */ |
| return 1; |
| } |
| } |
| |
| return 0; |
| } |
| |
| |
| static int roaming_partner_match(struct wpa_supplicant *wpa_s, |
| struct roaming_partner *partner, |
| struct wpabuf *domain_names) |
| { |
| wpa_printf(MSG_DEBUG, "Interworking: Comparing roaming_partner info fqdn='%s' exact_match=%d priority=%u country='%s'", |
| partner->fqdn, partner->exact_match, partner->priority, |
| partner->country); |
| wpa_hexdump_ascii(MSG_DEBUG, "Interworking: Domain names", |
| wpabuf_head(domain_names), |
| wpabuf_len(domain_names)); |
| if (!domain_name_list_contains(domain_names, partner->fqdn, |
| partner->exact_match)) |
| return 0; |
| /* TODO: match Country */ |
| return 1; |
| } |
| |
| |
| static u8 roaming_prio(struct wpa_supplicant *wpa_s, struct wpa_cred *cred, |
| struct wpa_bss *bss) |
| { |
| size_t i; |
| |
| if (bss->anqp == NULL || bss->anqp->domain_name == NULL) { |
| wpa_printf(MSG_DEBUG, "Interworking: No ANQP domain name info -> use default roaming partner priority 128"); |
| return 128; /* cannot check preference with domain name */ |
| } |
| |
| if (interworking_home_sp_cred(wpa_s, cred, bss->anqp->domain_name) > 0) |
| { |
| wpa_printf(MSG_DEBUG, "Interworking: Determined to be home SP -> use maximum preference 0 as roaming partner priority"); |
| return 0; /* max preference for home SP network */ |
| } |
| |
| for (i = 0; i < cred->num_roaming_partner; i++) { |
| if (roaming_partner_match(wpa_s, &cred->roaming_partner[i], |
| bss->anqp->domain_name)) { |
| wpa_printf(MSG_DEBUG, "Interworking: Roaming partner preference match - priority %u", |
| cred->roaming_partner[i].priority); |
| return cred->roaming_partner[i].priority; |
| } |
| } |
| |
| wpa_printf(MSG_DEBUG, "Interworking: No roaming partner preference match - use default roaming partner priority 128"); |
| return 128; |
| } |
| |
| |
| static struct wpa_bss * pick_best_roaming_partner(struct wpa_supplicant *wpa_s, |
| struct wpa_bss *selected, |
| struct wpa_cred *cred) |
| { |
| struct wpa_bss *bss; |
| u8 best_prio, prio; |
| struct wpa_cred *cred2; |
| |
| /* |
| * Check if any other BSS is operated by a more preferred roaming |
| * partner. |
| */ |
| |
| best_prio = roaming_prio(wpa_s, cred, selected); |
| wpa_printf(MSG_DEBUG, "Interworking: roaming_prio=%u for selected BSS " |
| MACSTR " (cred=%d)", best_prio, MAC2STR(selected->bssid), |
| cred->id); |
| |
| dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { |
| if (bss == selected) |
| continue; |
| cred2 = interworking_credentials_available(wpa_s, bss, NULL); |
| if (!cred2) |
| continue; |
| if (!wpa_bss_get_ie(bss, WLAN_EID_RSN)) |
| continue; |
| prio = roaming_prio(wpa_s, cred2, bss); |
| wpa_printf(MSG_DEBUG, "Interworking: roaming_prio=%u for BSS " |
| MACSTR " (cred=%d)", prio, MAC2STR(bss->bssid), |
| cred2->id); |
| if (prio < best_prio) { |
| int bh1, bh2, load1, load2, conn1, conn2; |
| bh1 = cred_below_min_backhaul(wpa_s, cred, selected); |
| load1 = cred_over_max_bss_load(wpa_s, cred, selected); |
| conn1 = cred_conn_capab_missing(wpa_s, cred, selected); |
| bh2 = cred_below_min_backhaul(wpa_s, cred2, bss); |
| load2 = cred_over_max_bss_load(wpa_s, cred2, bss); |
| conn2 = cred_conn_capab_missing(wpa_s, cred2, bss); |
| wpa_printf(MSG_DEBUG, "Interworking: old: %d %d %d new: %d %d %d", |
| bh1, load1, conn1, bh2, load2, conn2); |
| if (bh1 || load1 || conn1 || !(bh2 || load2 || conn2)) { |
| wpa_printf(MSG_DEBUG, "Interworking: Better roaming partner " MACSTR " selected", MAC2STR(bss->bssid)); |
| best_prio = prio; |
| selected = bss; |
| } |
| } |
| } |
| |
| return selected; |
| } |
| |
| |
| static void interworking_select_network(struct wpa_supplicant *wpa_s) |
| { |
| struct wpa_bss *bss, *selected = NULL, *selected_home = NULL; |
| struct wpa_bss *selected2 = NULL, *selected2_home = NULL; |
| unsigned int count = 0; |
| const char *type; |
| int res; |
| struct wpa_cred *cred, *selected_cred = NULL; |
| struct wpa_cred *selected_home_cred = NULL; |
| struct wpa_cred *selected2_cred = NULL; |
| struct wpa_cred *selected2_home_cred = NULL; |
| |
| wpa_s->network_select = 0; |
| |
| wpa_printf(MSG_DEBUG, "Interworking: Select network (auto_select=%d)", |
| wpa_s->auto_select); |
| dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { |
| int excluded = 0; |
| int bh, bss_load, conn_capab; |
| cred = interworking_credentials_available(wpa_s, bss, |
| &excluded); |
| if (!cred) |
| continue; |
| |
| if (!wpa_bss_get_ie(bss, WLAN_EID_RSN)) { |
| /* |
| * We currently support only HS 2.0 networks and those |
| * are required to use WPA2-Enterprise. |
| */ |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: Credential match with " MACSTR |
| " but network does not use RSN", |
| MAC2STR(bss->bssid)); |
| continue; |
| } |
| if (!excluded) |
| count++; |
| res = interworking_home_sp(wpa_s, bss->anqp ? |
| bss->anqp->domain_name : NULL); |
| if (res > 0) |
| type = "home"; |
| else if (res == 0) |
| type = "roaming"; |
| else |
| type = "unknown"; |
| bh = cred_below_min_backhaul(wpa_s, cred, bss); |
| bss_load = cred_over_max_bss_load(wpa_s, cred, bss); |
| conn_capab = cred_conn_capab_missing(wpa_s, cred, bss); |
| wpa_msg(wpa_s, MSG_INFO, "%s" MACSTR " type=%s%s%s%s id=%d priority=%d sp_priority=%d", |
| excluded ? INTERWORKING_BLACKLISTED : INTERWORKING_AP, |
| MAC2STR(bss->bssid), type, |
| bh ? " below_min_backhaul=1" : "", |
| bss_load ? " over_max_bss_load=1" : "", |
| conn_capab ? " conn_capab_missing=1" : "", |
| cred->id, cred->priority, cred->sp_priority); |
| if (excluded) |
| continue; |
| if (wpa_s->auto_select || |
| (wpa_s->conf->auto_interworking && |
| wpa_s->auto_network_select)) { |
| if (bh || bss_load || conn_capab) { |
| if (selected2_cred == NULL || |
| cred_prio_cmp(cred, selected2_cred) > 0) { |
| wpa_printf(MSG_DEBUG, "Interworking: Mark as selected2"); |
| selected2 = bss; |
| selected2_cred = cred; |
| } |
| if (res > 0 && |
| (selected2_home_cred == NULL || |
| cred_prio_cmp(cred, selected2_home_cred) > |
| 0)) { |
| wpa_printf(MSG_DEBUG, "Interworking: Mark as selected2_home"); |
| selected2_home = bss; |
| selected2_home_cred = cred; |
| } |
| } else { |
| if (selected_cred == NULL || |
| cred_prio_cmp(cred, selected_cred) > 0) { |
| wpa_printf(MSG_DEBUG, "Interworking: Mark as selected"); |
| selected = bss; |
| selected_cred = cred; |
| } |
| if (res > 0 && |
| (selected_home_cred == NULL || |
| cred_prio_cmp(cred, selected_home_cred) > |
| 0)) { |
| wpa_printf(MSG_DEBUG, "Interworking: Mark as selected_home"); |
| selected_home = bss; |
| selected_home_cred = cred; |
| } |
| } |
| } |
| } |
| |
| if (selected_home && selected_home != selected && |
| selected_home_cred && |
| (selected_cred == NULL || |
| cred_prio_cmp(selected_home_cred, selected_cred) >= 0)) { |
| /* Prefer network operated by the Home SP */ |
| wpa_printf(MSG_DEBUG, "Interworking: Overrided selected with selected_home"); |
| selected = selected_home; |
| selected_cred = selected_home_cred; |
| } |
| |
| if (!selected) { |
| if (selected2_home) { |
| wpa_printf(MSG_DEBUG, "Interworking: Use home BSS with BW limit mismatch since no other network could be selected"); |
| selected = selected2_home; |
| selected_cred = selected2_home_cred; |
| } else if (selected2) { |
| wpa_printf(MSG_DEBUG, "Interworking: Use visited BSS with BW limit mismatch since no other network could be selected"); |
| selected = selected2; |
| selected_cred = selected2_cred; |
| } |
| } |
| |
| if (count == 0) { |
| /* |
| * No matching network was found based on configured |
| * credentials. Check whether any of the enabled network blocks |
| * have matching APs. |
| */ |
| if (interworking_find_network_match(wpa_s)) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: Possible BSS match for enabled network configurations"); |
| if (wpa_s->auto_select) { |
| interworking_reconnect(wpa_s); |
| return; |
| } |
| } |
| |
| if (wpa_s->auto_network_select) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: Continue scanning after ANQP fetch"); |
| wpa_supplicant_req_scan(wpa_s, wpa_s->scan_interval, |
| 0); |
| return; |
| } |
| |
| wpa_msg(wpa_s, MSG_INFO, INTERWORKING_NO_MATCH "No network " |
| "with matching credentials found"); |
| if (wpa_s->wpa_state == WPA_SCANNING) |
| wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); |
| } |
| |
| if (selected) { |
| wpa_printf(MSG_DEBUG, "Interworking: Selected " MACSTR, |
| MAC2STR(selected->bssid)); |
| selected = pick_best_roaming_partner(wpa_s, selected, |
| selected_cred); |
| wpa_printf(MSG_DEBUG, "Interworking: Selected " MACSTR |
| " (after best roaming partner selection)", |
| MAC2STR(selected->bssid)); |
| wpa_msg(wpa_s, MSG_INFO, INTERWORKING_SELECTED MACSTR, |
| MAC2STR(selected->bssid)); |
| interworking_connect(wpa_s, selected, 0); |
| } |
| } |
| |
| |
| static struct wpa_bss_anqp * |
| interworking_match_anqp_info(struct wpa_supplicant *wpa_s, struct wpa_bss *bss) |
| { |
| struct wpa_bss *other; |
| |
| if (is_zero_ether_addr(bss->hessid)) |
| return NULL; /* Cannot be in the same homegenous ESS */ |
| |
| dl_list_for_each(other, &wpa_s->bss, struct wpa_bss, list) { |
| if (other == bss) |
| continue; |
| if (other->anqp == NULL) |
| continue; |
| if (other->anqp->roaming_consortium == NULL && |
| other->anqp->nai_realm == NULL && |
| other->anqp->anqp_3gpp == NULL && |
| other->anqp->domain_name == NULL) |
| continue; |
| if (!(other->flags & WPA_BSS_ANQP_FETCH_TRIED)) |
| continue; |
| if (os_memcmp(bss->hessid, other->hessid, ETH_ALEN) != 0) |
| continue; |
| if (bss->ssid_len != other->ssid_len || |
| os_memcmp(bss->ssid, other->ssid, bss->ssid_len) != 0) |
| continue; |
| |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: Share ANQP data with already fetched BSSID " |
| MACSTR " and " MACSTR, |
| MAC2STR(other->bssid), MAC2STR(bss->bssid)); |
| other->anqp->users++; |
| return other->anqp; |
| } |
| |
| return NULL; |
| } |
| |
| |
| static void interworking_next_anqp_fetch(struct wpa_supplicant *wpa_s) |
| { |
| struct wpa_bss *bss; |
| int found = 0; |
| const u8 *ie; |
| |
| wpa_printf(MSG_DEBUG, "Interworking: next_anqp_fetch - " |
| "fetch_anqp_in_progress=%d fetch_osu_icon_in_progress=%d", |
| wpa_s->fetch_anqp_in_progress, |
| wpa_s->fetch_osu_icon_in_progress); |
| |
| if (eloop_terminated() || !wpa_s->fetch_anqp_in_progress) { |
| wpa_printf(MSG_DEBUG, "Interworking: Stop next-ANQP-fetch"); |
| return; |
| } |
| |
| if (wpa_s->fetch_osu_icon_in_progress) { |
| wpa_printf(MSG_DEBUG, "Interworking: Next icon (in progress)"); |
| hs20_next_osu_icon(wpa_s); |
| return; |
| } |
| |
| dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { |
| if (!(bss->caps & IEEE80211_CAP_ESS)) |
| continue; |
| ie = wpa_bss_get_ie(bss, WLAN_EID_EXT_CAPAB); |
| if (ie == NULL || ie[1] < 4 || !(ie[5] & 0x80)) |
| continue; /* AP does not support Interworking */ |
| if (disallowed_bssid(wpa_s, bss->bssid) || |
| disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) |
| continue; /* Disallowed BSS */ |
| |
| if (!(bss->flags & WPA_BSS_ANQP_FETCH_TRIED)) { |
| if (bss->anqp == NULL) { |
| bss->anqp = interworking_match_anqp_info(wpa_s, |
| bss); |
| if (bss->anqp) { |
| /* Shared data already fetched */ |
| continue; |
| } |
| bss->anqp = wpa_bss_anqp_alloc(); |
| if (bss->anqp == NULL) |
| break; |
| } |
| found++; |
| bss->flags |= WPA_BSS_ANQP_FETCH_TRIED; |
| wpa_msg(wpa_s, MSG_INFO, "Starting ANQP fetch for " |
| MACSTR, MAC2STR(bss->bssid)); |
| interworking_anqp_send_req(wpa_s, bss); |
| break; |
| } |
| } |
| |
| if (found == 0) { |
| if (wpa_s->fetch_osu_info) { |
| if (wpa_s->num_prov_found == 0 && |
| wpa_s->fetch_osu_waiting_scan && |
| wpa_s->num_osu_scans < 3) { |
| wpa_printf(MSG_DEBUG, "HS 2.0: No OSU providers seen - try to scan again"); |
| hs20_start_osu_scan(wpa_s); |
| return; |
| } |
| wpa_printf(MSG_DEBUG, "Interworking: Next icon"); |
| hs20_osu_icon_fetch(wpa_s); |
| return; |
| } |
| wpa_msg(wpa_s, MSG_INFO, "ANQP fetch completed"); |
| wpa_s->fetch_anqp_in_progress = 0; |
| if (wpa_s->network_select) |
| interworking_select_network(wpa_s); |
| } |
| } |
| |
| |
| void interworking_start_fetch_anqp(struct wpa_supplicant *wpa_s) |
| { |
| struct wpa_bss *bss; |
| |
| dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) |
| bss->flags &= ~WPA_BSS_ANQP_FETCH_TRIED; |
| |
| wpa_s->fetch_anqp_in_progress = 1; |
| |
| /* |
| * Start actual ANQP operation from eloop call to make sure the loop |
| * does not end up using excessive recursion. |
| */ |
| eloop_register_timeout(0, 0, interworking_continue_anqp, wpa_s, NULL); |
| } |
| |
| |
| int interworking_fetch_anqp(struct wpa_supplicant *wpa_s) |
| { |
| if (wpa_s->fetch_anqp_in_progress || wpa_s->network_select) |
| return 0; |
| |
| wpa_s->network_select = 0; |
| wpa_s->fetch_all_anqp = 1; |
| wpa_s->fetch_osu_info = 0; |
| |
| interworking_start_fetch_anqp(wpa_s); |
| |
| return 0; |
| } |
| |
| |
| void interworking_stop_fetch_anqp(struct wpa_supplicant *wpa_s) |
| { |
| if (!wpa_s->fetch_anqp_in_progress) |
| return; |
| |
| wpa_s->fetch_anqp_in_progress = 0; |
| } |
| |
| |
| int anqp_send_req(struct wpa_supplicant *wpa_s, const u8 *dst, |
| u16 info_ids[], size_t num_ids, u32 subtypes) |
| { |
| struct wpabuf *buf; |
| struct wpabuf *hs20_buf = NULL; |
| int ret = 0; |
| int freq; |
| struct wpa_bss *bss; |
| int res; |
| |
| freq = wpa_s->assoc_freq; |
| bss = wpa_bss_get_bssid(wpa_s, dst); |
| if (bss) { |
| wpa_bss_anqp_unshare_alloc(bss); |
| freq = bss->freq; |
| } |
| if (freq <= 0) |
| return -1; |
| |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "ANQP: Query Request to " MACSTR " for %u id(s)", |
| MAC2STR(dst), (unsigned int) num_ids); |
| |
| #ifdef CONFIG_HS20 |
| if (subtypes != 0) { |
| hs20_buf = wpabuf_alloc(100); |
| if (hs20_buf == NULL) |
| return -1; |
| hs20_put_anqp_req(subtypes, NULL, 0, hs20_buf); |
| } |
| #endif /* CONFIG_HS20 */ |
| |
| buf = anqp_build_req(info_ids, num_ids, hs20_buf); |
| wpabuf_free(hs20_buf); |
| if (buf == NULL) |
| return -1; |
| |
| res = gas_query_req(wpa_s->gas, dst, freq, buf, anqp_resp_cb, wpa_s); |
| if (res < 0) { |
| wpa_msg(wpa_s, MSG_DEBUG, "ANQP: Failed to send Query Request"); |
| wpabuf_free(buf); |
| ret = -1; |
| } else { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "ANQP: Query started with dialog token %u", res); |
| } |
| |
| return ret; |
| } |
| |
| |
| static void interworking_parse_rx_anqp_resp(struct wpa_supplicant *wpa_s, |
| struct wpa_bss *bss, const u8 *sa, |
| u16 info_id, |
| const u8 *data, size_t slen) |
| { |
| const u8 *pos = data; |
| struct wpa_bss_anqp *anqp = NULL; |
| #ifdef CONFIG_HS20 |
| u8 type; |
| #endif /* CONFIG_HS20 */ |
| |
| if (bss) |
| anqp = bss->anqp; |
| |
| switch (info_id) { |
| case ANQP_CAPABILITY_LIST: |
| wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR |
| " ANQP Capability list", MAC2STR(sa)); |
| wpa_hexdump_ascii(MSG_DEBUG, "ANQP: Capability list", |
| pos, slen); |
| if (anqp) { |
| wpabuf_free(anqp->capability_list); |
| anqp->capability_list = wpabuf_alloc_copy(pos, slen); |
| } |
| break; |
| case ANQP_VENUE_NAME: |
| wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR |
| " Venue Name", MAC2STR(sa)); |
| wpa_hexdump_ascii(MSG_DEBUG, "ANQP: Venue Name", pos, slen); |
| if (anqp) { |
| wpabuf_free(anqp->venue_name); |
| anqp->venue_name = wpabuf_alloc_copy(pos, slen); |
| } |
| break; |
| case ANQP_NETWORK_AUTH_TYPE: |
| wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR |
| " Network Authentication Type information", |
| MAC2STR(sa)); |
| wpa_hexdump_ascii(MSG_DEBUG, "ANQP: Network Authentication " |
| "Type", pos, slen); |
| if (anqp) { |
| wpabuf_free(anqp->network_auth_type); |
| anqp->network_auth_type = wpabuf_alloc_copy(pos, slen); |
| } |
| break; |
| case ANQP_ROAMING_CONSORTIUM: |
| wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR |
| " Roaming Consortium list", MAC2STR(sa)); |
| wpa_hexdump_ascii(MSG_DEBUG, "ANQP: Roaming Consortium", |
| pos, slen); |
| if (anqp) { |
| wpabuf_free(anqp->roaming_consortium); |
| anqp->roaming_consortium = wpabuf_alloc_copy(pos, slen); |
| } |
| break; |
| case ANQP_IP_ADDR_TYPE_AVAILABILITY: |
| wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR |
| " IP Address Type Availability information", |
| MAC2STR(sa)); |
| wpa_hexdump(MSG_MSGDUMP, "ANQP: IP Address Availability", |
| pos, slen); |
| if (anqp) { |
| wpabuf_free(anqp->ip_addr_type_availability); |
| anqp->ip_addr_type_availability = |
| wpabuf_alloc_copy(pos, slen); |
| } |
| break; |
| case ANQP_NAI_REALM: |
| wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR |
| " NAI Realm list", MAC2STR(sa)); |
| wpa_hexdump_ascii(MSG_DEBUG, "ANQP: NAI Realm", pos, slen); |
| if (anqp) { |
| wpabuf_free(anqp->nai_realm); |
| anqp->nai_realm = wpabuf_alloc_copy(pos, slen); |
| } |
| break; |
| case ANQP_3GPP_CELLULAR_NETWORK: |
| wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR |
| " 3GPP Cellular Network information", MAC2STR(sa)); |
| wpa_hexdump_ascii(MSG_DEBUG, "ANQP: 3GPP Cellular Network", |
| pos, slen); |
| if (anqp) { |
| wpabuf_free(anqp->anqp_3gpp); |
| anqp->anqp_3gpp = wpabuf_alloc_copy(pos, slen); |
| } |
| break; |
| case ANQP_DOMAIN_NAME: |
| wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR |
| " Domain Name list", MAC2STR(sa)); |
| wpa_hexdump_ascii(MSG_MSGDUMP, "ANQP: Domain Name", pos, slen); |
| if (anqp) { |
| wpabuf_free(anqp->domain_name); |
| anqp->domain_name = wpabuf_alloc_copy(pos, slen); |
| } |
| break; |
| case ANQP_VENDOR_SPECIFIC: |
| if (slen < 3) |
| return; |
| |
| switch (WPA_GET_BE24(pos)) { |
| #ifdef CONFIG_HS20 |
| case OUI_WFA: |
| pos += 3; |
| slen -= 3; |
| |
| if (slen < 1) |
| return; |
| type = *pos++; |
| slen--; |
| |
| switch (type) { |
| case HS20_ANQP_OUI_TYPE: |
| hs20_parse_rx_hs20_anqp_resp(wpa_s, bss, sa, |
| pos, slen); |
| break; |
| default: |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "HS20: Unsupported ANQP vendor type %u", |
| type); |
| break; |
| } |
| break; |
| #endif /* CONFIG_HS20 */ |
| default: |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: Unsupported vendor-specific ANQP OUI %06x", |
| WPA_GET_BE24(pos)); |
| return; |
| } |
| break; |
| default: |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "Interworking: Unsupported ANQP Info ID %u", info_id); |
| break; |
| } |
| } |
| |
| |
| void anqp_resp_cb(void *ctx, const u8 *dst, u8 dialog_token, |
| enum gas_query_result result, |
| const struct wpabuf *adv_proto, |
| const struct wpabuf *resp, u16 status_code) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| const u8 *pos; |
| const u8 *end; |
| u16 info_id; |
| u16 slen; |
| struct wpa_bss *bss = NULL, *tmp; |
| const char *anqp_result = "SUCCESS"; |
| |
| wpa_printf(MSG_DEBUG, "Interworking: anqp_resp_cb dst=" MACSTR |
| " dialog_token=%u result=%d status_code=%u", |
| MAC2STR(dst), dialog_token, result, status_code); |
| if (result != GAS_QUERY_SUCCESS) { |
| if (wpa_s->fetch_osu_icon_in_progress) |
| hs20_icon_fetch_failed(wpa_s); |
| anqp_result = "FAILURE"; |
| goto out; |
| } |
| |
| pos = wpabuf_head(adv_proto); |
| if (wpabuf_len(adv_proto) < 4 || pos[0] != WLAN_EID_ADV_PROTO || |
| pos[1] < 2 || pos[3] != ACCESS_NETWORK_QUERY_PROTOCOL) { |
| wpa_msg(wpa_s, MSG_DEBUG, |
| "ANQP: Unexpected Advertisement Protocol in response"); |
| if (wpa_s->fetch_osu_icon_in_progress) |
| hs20_icon_fetch_failed(wpa_s); |
| anqp_result = "INVALID_FRAME"; |
| goto out; |
| } |
| |
| /* |
| * If possible, select the BSS entry based on which BSS entry was used |
| * for the request. This can help in cases where multiple BSS entries |
| <
|