476aed355a
This is an initial step in allowing the ANQP responses to be shared among multiple BSSes if the BSSes are determined to be operating under identical configuration. Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
1956 lines
46 KiB
C
1956 lines
46 KiB
C
/*
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* Interworking (IEEE 802.11u)
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* Copyright (c) 2011-2012, Qualcomm Atheros, Inc.
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#include "includes.h"
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#include "common.h"
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#include "common/ieee802_11_defs.h"
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#include "common/gas.h"
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#include "common/wpa_ctrl.h"
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#include "utils/pcsc_funcs.h"
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#include "drivers/driver.h"
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#include "eap_common/eap_defs.h"
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#include "eap_peer/eap.h"
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#include "eap_peer/eap_methods.h"
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#include "wpa_supplicant_i.h"
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#include "config.h"
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#include "config_ssid.h"
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#include "bss.h"
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#include "scan.h"
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#include "notify.h"
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#include "gas_query.h"
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#include "hs20_supplicant.h"
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#include "interworking.h"
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#if defined(EAP_SIM) | defined(EAP_SIM_DYNAMIC)
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#define INTERWORKING_3GPP
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#else
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#if defined(EAP_AKA) | defined(EAP_AKA_DYNAMIC)
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#define INTERWORKING_3GPP
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#else
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#if defined(EAP_AKA_PRIME) | defined(EAP_AKA_PRIME_DYNAMIC)
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#define INTERWORKING_3GPP
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#endif
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#endif
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#endif
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static void interworking_next_anqp_fetch(struct wpa_supplicant *wpa_s);
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static void interworking_reconnect(struct wpa_supplicant *wpa_s)
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{
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if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
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wpa_supplicant_cancel_sched_scan(wpa_s);
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wpa_supplicant_deauthenticate(wpa_s,
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WLAN_REASON_DEAUTH_LEAVING);
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}
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wpa_s->disconnected = 0;
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wpa_s->reassociate = 1;
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if (wpa_s->last_scan_res_used > 0) {
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struct os_time now;
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os_get_time(&now);
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if (now.sec - wpa_s->last_scan.sec <= 5) {
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wpa_printf(MSG_DEBUG, "Interworking: Old scan results "
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"are fresh - connect without new scan");
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if (wpas_select_network_from_last_scan(wpa_s) == 0)
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return;
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}
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}
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wpa_supplicant_req_scan(wpa_s, 0, 0);
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}
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static struct wpabuf * anqp_build_req(u16 info_ids[], size_t num_ids,
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struct wpabuf *extra)
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{
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struct wpabuf *buf;
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size_t i;
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u8 *len_pos;
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buf = gas_anqp_build_initial_req(0, 4 + num_ids * 2 +
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(extra ? wpabuf_len(extra) : 0));
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if (buf == NULL)
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return NULL;
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len_pos = gas_anqp_add_element(buf, ANQP_QUERY_LIST);
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for (i = 0; i < num_ids; i++)
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wpabuf_put_le16(buf, info_ids[i]);
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gas_anqp_set_element_len(buf, len_pos);
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if (extra)
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wpabuf_put_buf(buf, extra);
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gas_anqp_set_len(buf);
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return buf;
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}
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static void interworking_anqp_resp_cb(void *ctx, const u8 *dst,
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u8 dialog_token,
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enum gas_query_result result,
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const struct wpabuf *adv_proto,
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const struct wpabuf *resp,
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u16 status_code)
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{
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struct wpa_supplicant *wpa_s = ctx;
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anqp_resp_cb(wpa_s, dst, dialog_token, result, adv_proto, resp,
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status_code);
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interworking_next_anqp_fetch(wpa_s);
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}
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static int cred_with_roaming_consortium(struct wpa_supplicant *wpa_s)
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{
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struct wpa_cred *cred;
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for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
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if (cred->roaming_consortium_len)
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return 1;
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}
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return 0;
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}
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static int cred_with_3gpp(struct wpa_supplicant *wpa_s)
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{
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struct wpa_cred *cred;
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for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
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if (cred->pcsc || cred->imsi)
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return 1;
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}
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return 0;
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}
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static int cred_with_nai_realm(struct wpa_supplicant *wpa_s)
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{
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struct wpa_cred *cred;
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for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
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if (cred->pcsc || cred->imsi)
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continue;
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if (!cred->eap_method)
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return 1;
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if (cred->realm && cred->roaming_consortium_len == 0)
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return 1;
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}
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return 0;
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}
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static int cred_with_domain(struct wpa_supplicant *wpa_s)
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{
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struct wpa_cred *cred;
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for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
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if (cred->domain || cred->pcsc || cred->imsi)
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return 1;
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}
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return 0;
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}
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static int additional_roaming_consortiums(struct wpa_bss *bss)
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{
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const u8 *ie;
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ie = wpa_bss_get_ie(bss, WLAN_EID_ROAMING_CONSORTIUM);
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if (ie == NULL || ie[1] == 0)
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return 0;
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return ie[2]; /* Number of ANQP OIs */
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}
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static int interworking_anqp_send_req(struct wpa_supplicant *wpa_s,
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struct wpa_bss *bss)
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{
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struct wpabuf *buf;
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int ret = 0;
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int res;
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u16 info_ids[8];
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size_t num_info_ids = 0;
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struct wpabuf *extra = NULL;
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int all = wpa_s->fetch_all_anqp;
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wpa_printf(MSG_DEBUG, "Interworking: ANQP Query Request to " MACSTR,
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MAC2STR(bss->bssid));
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info_ids[num_info_ids++] = ANQP_CAPABILITY_LIST;
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if (all) {
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info_ids[num_info_ids++] = ANQP_VENUE_NAME;
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info_ids[num_info_ids++] = ANQP_NETWORK_AUTH_TYPE;
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}
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if (all || (cred_with_roaming_consortium(wpa_s) &&
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additional_roaming_consortiums(bss)))
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info_ids[num_info_ids++] = ANQP_ROAMING_CONSORTIUM;
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if (all)
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info_ids[num_info_ids++] = ANQP_IP_ADDR_TYPE_AVAILABILITY;
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if (all || cred_with_nai_realm(wpa_s))
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info_ids[num_info_ids++] = ANQP_NAI_REALM;
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if (all || cred_with_3gpp(wpa_s))
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info_ids[num_info_ids++] = ANQP_3GPP_CELLULAR_NETWORK;
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if (all || cred_with_domain(wpa_s))
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info_ids[num_info_ids++] = ANQP_DOMAIN_NAME;
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wpa_hexdump(MSG_DEBUG, "Interworking: ANQP Query info",
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(u8 *) info_ids, num_info_ids * 2);
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#ifdef CONFIG_HS20
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if (wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE)) {
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u8 *len_pos;
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extra = wpabuf_alloc(100);
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if (!extra)
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return -1;
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len_pos = gas_anqp_add_element(extra, ANQP_VENDOR_SPECIFIC);
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wpabuf_put_be24(extra, OUI_WFA);
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wpabuf_put_u8(extra, HS20_ANQP_OUI_TYPE);
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wpabuf_put_u8(extra, HS20_STYPE_QUERY_LIST);
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wpabuf_put_u8(extra, 0); /* Reserved */
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wpabuf_put_u8(extra, HS20_STYPE_CAPABILITY_LIST);
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if (all) {
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wpabuf_put_u8(extra,
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HS20_STYPE_OPERATOR_FRIENDLY_NAME);
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wpabuf_put_u8(extra, HS20_STYPE_WAN_METRICS);
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wpabuf_put_u8(extra, HS20_STYPE_CONNECTION_CAPABILITY);
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wpabuf_put_u8(extra, HS20_STYPE_OPERATING_CLASS);
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}
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gas_anqp_set_element_len(extra, len_pos);
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}
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#endif /* CONFIG_HS20 */
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buf = anqp_build_req(info_ids, num_info_ids, extra);
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wpabuf_free(extra);
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if (buf == NULL)
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return -1;
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res = gas_query_req(wpa_s->gas, bss->bssid, bss->freq, buf,
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interworking_anqp_resp_cb, wpa_s);
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if (res < 0) {
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wpa_printf(MSG_DEBUG, "ANQP: Failed to send Query Request");
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ret = -1;
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} else
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wpa_printf(MSG_DEBUG, "ANQP: Query started with dialog token "
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"%u", res);
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wpabuf_free(buf);
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return ret;
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}
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struct nai_realm_eap {
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u8 method;
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u8 inner_method;
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enum nai_realm_eap_auth_inner_non_eap inner_non_eap;
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u8 cred_type;
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u8 tunneled_cred_type;
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};
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struct nai_realm {
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u8 encoding;
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char *realm;
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u8 eap_count;
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struct nai_realm_eap *eap;
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};
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static void nai_realm_free(struct nai_realm *realms, u16 count)
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{
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u16 i;
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if (realms == NULL)
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return;
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for (i = 0; i < count; i++) {
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os_free(realms[i].eap);
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os_free(realms[i].realm);
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}
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os_free(realms);
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}
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static const u8 * nai_realm_parse_eap(struct nai_realm_eap *e, const u8 *pos,
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const u8 *end)
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{
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u8 elen, auth_count, a;
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const u8 *e_end;
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if (pos + 3 > end) {
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wpa_printf(MSG_DEBUG, "No room for EAP Method fixed fields");
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return NULL;
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}
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elen = *pos++;
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if (pos + elen > end || elen < 2) {
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wpa_printf(MSG_DEBUG, "No room for EAP Method subfield");
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return NULL;
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}
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e_end = pos + elen;
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e->method = *pos++;
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auth_count = *pos++;
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wpa_printf(MSG_DEBUG, "EAP Method: len=%u method=%u auth_count=%u",
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elen, e->method, auth_count);
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for (a = 0; a < auth_count; a++) {
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u8 id, len;
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if (pos + 2 > end || pos + 2 + pos[1] > end) {
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wpa_printf(MSG_DEBUG, "No room for Authentication "
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"Parameter subfield");
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return NULL;
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}
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id = *pos++;
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len = *pos++;
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switch (id) {
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case NAI_REALM_EAP_AUTH_NON_EAP_INNER_AUTH:
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if (len < 1)
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break;
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e->inner_non_eap = *pos;
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if (e->method != EAP_TYPE_TTLS)
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break;
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switch (*pos) {
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case NAI_REALM_INNER_NON_EAP_PAP:
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wpa_printf(MSG_DEBUG, "EAP-TTLS/PAP");
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break;
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case NAI_REALM_INNER_NON_EAP_CHAP:
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wpa_printf(MSG_DEBUG, "EAP-TTLS/CHAP");
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break;
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case NAI_REALM_INNER_NON_EAP_MSCHAP:
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wpa_printf(MSG_DEBUG, "EAP-TTLS/MSCHAP");
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break;
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case NAI_REALM_INNER_NON_EAP_MSCHAPV2:
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wpa_printf(MSG_DEBUG, "EAP-TTLS/MSCHAPV2");
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break;
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}
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break;
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case NAI_REALM_EAP_AUTH_INNER_AUTH_EAP_METHOD:
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if (len < 1)
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break;
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e->inner_method = *pos;
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wpa_printf(MSG_DEBUG, "Inner EAP method: %u",
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e->inner_method);
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break;
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case NAI_REALM_EAP_AUTH_CRED_TYPE:
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if (len < 1)
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break;
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e->cred_type = *pos;
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wpa_printf(MSG_DEBUG, "Credential Type: %u",
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e->cred_type);
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break;
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case NAI_REALM_EAP_AUTH_TUNNELED_CRED_TYPE:
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if (len < 1)
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break;
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e->tunneled_cred_type = *pos;
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wpa_printf(MSG_DEBUG, "Tunneled EAP Method Credential "
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"Type: %u", e->tunneled_cred_type);
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break;
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default:
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wpa_printf(MSG_DEBUG, "Unsupported Authentication "
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"Parameter: id=%u len=%u", id, len);
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wpa_hexdump(MSG_DEBUG, "Authentication Parameter "
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"Value", pos, len);
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break;
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}
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pos += len;
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}
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return e_end;
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}
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static const u8 * nai_realm_parse_realm(struct nai_realm *r, const u8 *pos,
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const u8 *end)
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{
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u16 len;
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const u8 *f_end;
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u8 realm_len, e;
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if (end - pos < 4) {
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wpa_printf(MSG_DEBUG, "No room for NAI Realm Data "
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"fixed fields");
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return NULL;
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}
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len = WPA_GET_LE16(pos); /* NAI Realm Data field Length */
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pos += 2;
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if (pos + len > end || len < 3) {
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wpa_printf(MSG_DEBUG, "No room for NAI Realm Data "
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"(len=%u; left=%u)",
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len, (unsigned int) (end - pos));
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return NULL;
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}
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f_end = pos + len;
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r->encoding = *pos++;
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realm_len = *pos++;
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if (pos + realm_len > f_end) {
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wpa_printf(MSG_DEBUG, "No room for NAI Realm "
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"(len=%u; left=%u)",
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realm_len, (unsigned int) (f_end - pos));
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return NULL;
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}
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wpa_hexdump_ascii(MSG_DEBUG, "NAI Realm", pos, realm_len);
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r->realm = os_malloc(realm_len + 1);
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if (r->realm == NULL)
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return NULL;
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os_memcpy(r->realm, pos, realm_len);
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r->realm[realm_len] = '\0';
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pos += realm_len;
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if (pos + 1 > f_end) {
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wpa_printf(MSG_DEBUG, "No room for EAP Method Count");
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return NULL;
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}
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r->eap_count = *pos++;
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wpa_printf(MSG_DEBUG, "EAP Count: %u", r->eap_count);
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if (pos + r->eap_count * 3 > f_end) {
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wpa_printf(MSG_DEBUG, "No room for EAP Methods");
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return NULL;
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}
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r->eap = os_calloc(r->eap_count, sizeof(struct nai_realm_eap));
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if (r->eap == NULL)
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return NULL;
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for (e = 0; e < r->eap_count; e++) {
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pos = nai_realm_parse_eap(&r->eap[e], pos, f_end);
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if (pos == NULL)
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return NULL;
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}
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return f_end;
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}
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static struct nai_realm * nai_realm_parse(struct wpabuf *anqp, u16 *count)
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{
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struct nai_realm *realm;
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const u8 *pos, *end;
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u16 i, num;
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if (anqp == NULL || wpabuf_len(anqp) < 2)
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return NULL;
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pos = wpabuf_head_u8(anqp);
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end = pos + wpabuf_len(anqp);
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num = WPA_GET_LE16(pos);
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wpa_printf(MSG_DEBUG, "NAI Realm Count: %u", num);
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pos += 2;
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if (num * 5 > end - pos) {
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wpa_printf(MSG_DEBUG, "Invalid NAI Realm Count %u - not "
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"enough data (%u octets) for that many realms",
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num, (unsigned int) (end - pos));
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return NULL;
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}
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realm = os_calloc(num, sizeof(struct nai_realm));
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if (realm == NULL)
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return NULL;
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for (i = 0; i < num; i++) {
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pos = nai_realm_parse_realm(&realm[i], pos, end);
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if (pos == NULL) {
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nai_realm_free(realm, num);
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return NULL;
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}
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}
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*count = num;
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return realm;
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}
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static int nai_realm_match(struct nai_realm *realm, const char *home_realm)
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{
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char *tmp, *pos, *end;
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int match = 0;
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if (realm->realm == NULL || home_realm == NULL)
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return 0;
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if (os_strchr(realm->realm, ';') == NULL)
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return os_strcasecmp(realm->realm, home_realm) == 0;
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tmp = os_strdup(realm->realm);
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if (tmp == NULL)
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return 0;
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pos = tmp;
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while (*pos) {
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end = os_strchr(pos, ';');
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if (end)
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*end = '\0';
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if (os_strcasecmp(pos, home_realm) == 0) {
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match = 1;
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break;
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}
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if (end == NULL)
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|
break;
|
|
pos = end + 1;
|
|
}
|
|
|
|
os_free(tmp);
|
|
|
|
return match;
|
|
}
|
|
|
|
|
|
static int nai_realm_cred_username(struct nai_realm_eap *eap)
|
|
{
|
|
if (eap_get_name(EAP_VENDOR_IETF, eap->method) == NULL)
|
|
return 0; /* method not supported */
|
|
|
|
if (eap->method != EAP_TYPE_TTLS && eap->method != EAP_TYPE_PEAP) {
|
|
/* Only tunneled methods with username/password supported */
|
|
return 0;
|
|
}
|
|
|
|
if (eap->method == EAP_TYPE_PEAP &&
|
|
eap_get_name(EAP_VENDOR_IETF, eap->inner_method) == NULL)
|
|
return 0;
|
|
|
|
if (eap->method == EAP_TYPE_TTLS) {
|
|
if (eap->inner_method == 0 && eap->inner_non_eap == 0)
|
|
return 0;
|
|
if (eap->inner_method &&
|
|
eap_get_name(EAP_VENDOR_IETF, eap->inner_method) == NULL)
|
|
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)
|
|
return 0;
|
|
}
|
|
|
|
if (eap->inner_method &&
|
|
eap->inner_method != EAP_TYPE_GTC &&
|
|
eap->inner_method != EAP_TYPE_MSCHAPV2)
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int nai_realm_cred_cert(struct nai_realm_eap *eap)
|
|
{
|
|
if (eap_get_name(EAP_VENDOR_IETF, eap->method) == NULL)
|
|
return 0; /* method not supported */
|
|
|
|
if (eap->method != EAP_TYPE_TLS) {
|
|
/* Only EAP-TLS supported for credential authentication */
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
static struct nai_realm_eap * nai_realm_find_eap(struct wpa_cred *cred,
|
|
struct nai_realm *realm)
|
|
{
|
|
u8 e;
|
|
|
|
if (cred == NULL ||
|
|
cred->username == NULL ||
|
|
cred->username[0] == '\0' ||
|
|
((cred->password == NULL ||
|
|
cred->password[0] == '\0') &&
|
|
(cred->private_key == NULL ||
|
|
cred->private_key[0] == '\0')))
|
|
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(eap))
|
|
return eap;
|
|
if (cred->private_key && cred->private_key[0] &&
|
|
nai_realm_cred_cert(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];
|
|
const u8 *pos, *end;
|
|
u8 udhl;
|
|
|
|
/* See Annex A of 3GPP TS 24.234 v8.1.0 for description */
|
|
plmn[0] = (imsi[0] - '0') | ((imsi[1] - '0') << 4);
|
|
plmn[1] = imsi[2] - '0';
|
|
/* default to MNC length 3 if unknown */
|
|
if (mnc_len != 2)
|
|
plmn[1] |= (imsi[5] - '0') << 4;
|
|
else
|
|
plmn[1] |= 0xf0;
|
|
plmn[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;
|
|
|
|
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;
|
|
num = *pos++;
|
|
for (i = 0; i < num; i++) {
|
|
if (pos + 3 > end)
|
|
break;
|
|
if (os_memcmp(pos, plmn, 3) == 0)
|
|
return 1; /* Found matching PLMN */
|
|
pos += 3;
|
|
}
|
|
}
|
|
|
|
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];
|
|
}
|
|
pos += 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 interworking_set_hs20_params(struct wpa_ssid *ssid)
|
|
{
|
|
if (wpa_config_set(ssid, "key_mgmt", "WPA-EAP", 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_bss *bss)
|
|
{
|
|
#ifdef INTERWORKING_3GPP
|
|
struct wpa_cred *cred;
|
|
struct wpa_ssid *ssid;
|
|
const u8 *ie;
|
|
|
|
if (bss->anqp == NULL || bss->anqp->anqp_3gpp == NULL)
|
|
return -1;
|
|
|
|
for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
|
|
char *sep;
|
|
const char *imsi;
|
|
int mnc_len;
|
|
|
|
#ifdef PCSC_FUNCS
|
|
if (cred->pcsc && wpa_s->conf->pcsc_reader && wpa_s->scard &&
|
|
wpa_s->imsi[0]) {
|
|
imsi = wpa_s->imsi;
|
|
mnc_len = wpa_s->mnc_len;
|
|
goto compare;
|
|
}
|
|
#endif /* PCSC_FUNCS */
|
|
|
|
if (cred->imsi == NULL || !cred->imsi[0] ||
|
|
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;
|
|
imsi = cred->imsi;
|
|
|
|
#ifdef PCSC_FUNCS
|
|
compare:
|
|
#endif /* PCSC_FUNCS */
|
|
if (plmn_id_match(bss->anqp->anqp_3gpp, imsi, mnc_len))
|
|
break;
|
|
}
|
|
if (cred == NULL)
|
|
return -1;
|
|
|
|
ie = wpa_bss_get_ie(bss, WLAN_EID_SSID);
|
|
if (ie == NULL)
|
|
return -1;
|
|
wpa_printf(MSG_DEBUG, "Interworking: Connect with " MACSTR " (3GPP)",
|
|
MAC2STR(bss->bssid));
|
|
|
|
ssid = wpa_config_add_network(wpa_s->conf);
|
|
if (ssid == NULL)
|
|
return -1;
|
|
|
|
wpas_notify_network_added(wpa_s, ssid);
|
|
wpa_config_set_network_defaults(ssid);
|
|
ssid->priority = cred->priority;
|
|
ssid->temporary = 1;
|
|
ssid->ssid = os_zalloc(ie[1] + 1);
|
|
if (ssid->ssid == NULL)
|
|
goto fail;
|
|
os_memcpy(ssid->ssid, ie + 2, ie[1]);
|
|
ssid->ssid_len = ie[1];
|
|
|
|
if (interworking_set_hs20_params(ssid) < 0)
|
|
goto fail;
|
|
|
|
/* TODO: figure out whether to use EAP-SIM, EAP-AKA, or EAP-AKA' */
|
|
if (wpa_config_set(ssid, "eap", "SIM", 0) < 0) {
|
|
wpa_printf(MSG_DEBUG, "EAP-SIM not supported");
|
|
goto fail;
|
|
}
|
|
if (cred->pcsc && wpa_s->scard && scard_supports_umts(wpa_s->scard))
|
|
wpa_config_set(ssid, "eap", "AKA", 0);
|
|
if (!cred->pcsc && set_root_nai(ssid, cred->imsi, '1') < 0) {
|
|
wpa_printf(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;
|
|
}
|
|
|
|
if (cred->password && cred->password[0] &&
|
|
wpa_config_set_quoted(ssid, "password", cred->password) < 0)
|
|
goto fail;
|
|
|
|
wpa_config_update_prio_list(wpa_s->conf);
|
|
interworking_reconnect(wpa_s);
|
|
|
|
return 0;
|
|
|
|
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 struct wpa_cred * interworking_credentials_available_roaming_consortium(
|
|
struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
|
|
{
|
|
struct wpa_cred *cred, *selected = NULL;
|
|
const u8 *ie;
|
|
|
|
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 (selected == NULL ||
|
|
selected->priority < cred->priority)
|
|
selected = cred;
|
|
}
|
|
|
|
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;
|
|
|
|
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;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int interworking_connect_roaming_consortium(
|
|
struct wpa_supplicant *wpa_s, struct wpa_cred *cred,
|
|
struct wpa_bss *bss, const u8 *ssid_ie)
|
|
{
|
|
struct wpa_ssid *ssid;
|
|
|
|
wpa_printf(MSG_DEBUG, "Interworking: Connect with " MACSTR " based on "
|
|
"roaming consortium match", MAC2STR(bss->bssid));
|
|
|
|
ssid = wpa_config_add_network(wpa_s->conf);
|
|
if (ssid == NULL)
|
|
return -1;
|
|
wpas_notify_network_added(wpa_s, ssid);
|
|
wpa_config_set_network_defaults(ssid);
|
|
ssid->priority = cred->priority;
|
|
ssid->temporary = 1;
|
|
ssid->ssid = os_zalloc(ssid_ie[1] + 1);
|
|
if (ssid->ssid == NULL)
|
|
goto fail;
|
|
os_memcpy(ssid->ssid, ssid_ie + 2, ssid_ie[1]);
|
|
ssid->ssid_len = ssid_ie[1];
|
|
|
|
if (interworking_set_hs20_params(ssid) < 0)
|
|
goto fail;
|
|
|
|
if (cred->eap_method == NULL) {
|
|
wpa_printf(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_config_update_prio_list(wpa_s->conf);
|
|
interworking_reconnect(wpa_s);
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
wpas_notify_network_removed(wpa_s, ssid);
|
|
wpa_config_remove_network(wpa_s->conf, ssid->id);
|
|
return -1;
|
|
}
|
|
|
|
|
|
int interworking_connect(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
|
|
{
|
|
struct wpa_cred *cred;
|
|
struct wpa_ssid *ssid;
|
|
struct nai_realm *realm;
|
|
struct nai_realm_eap *eap = NULL;
|
|
u16 count, i;
|
|
char buf[100];
|
|
const u8 *ie;
|
|
|
|
if (wpa_s->conf->cred == NULL || bss == NULL)
|
|
return -1;
|
|
ie = wpa_bss_get_ie(bss, WLAN_EID_SSID);
|
|
if (ie == NULL || ie[1] == 0) {
|
|
wpa_printf(MSG_DEBUG, "Interworking: No SSID known for "
|
|
MACSTR, MAC2STR(bss->bssid));
|
|
return -1;
|
|
}
|
|
|
|
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_printf(MSG_DEBUG, "Interworking: Network does not use "
|
|
"RSN");
|
|
return -1;
|
|
}
|
|
|
|
cred = interworking_credentials_available_roaming_consortium(wpa_s,
|
|
bss);
|
|
if (cred)
|
|
return interworking_connect_roaming_consortium(wpa_s, cred,
|
|
bss, ie);
|
|
|
|
realm = nai_realm_parse(bss->anqp ? bss->anqp->nai_realm : NULL,
|
|
&count);
|
|
if (realm == NULL) {
|
|
wpa_printf(MSG_DEBUG, "Interworking: Could not parse NAI "
|
|
"Realm list from " MACSTR, MAC2STR(bss->bssid));
|
|
count = 0;
|
|
}
|
|
|
|
for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
|
|
for (i = 0; i < count; i++) {
|
|
if (!nai_realm_match(&realm[i], cred->realm))
|
|
continue;
|
|
eap = nai_realm_find_eap(cred, &realm[i]);
|
|
if (eap)
|
|
break;
|
|
}
|
|
if (eap)
|
|
break;
|
|
}
|
|
|
|
if (!eap) {
|
|
if (interworking_connect_3gpp(wpa_s, bss) == 0) {
|
|
if (realm)
|
|
nai_realm_free(realm, count);
|
|
return 0;
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "Interworking: No matching credentials "
|
|
"and EAP method found for " MACSTR,
|
|
MAC2STR(bss->bssid));
|
|
nai_realm_free(realm, count);
|
|
return -1;
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "Interworking: Connect with " MACSTR,
|
|
MAC2STR(bss->bssid));
|
|
|
|
ssid = wpa_config_add_network(wpa_s->conf);
|
|
if (ssid == NULL) {
|
|
nai_realm_free(realm, count);
|
|
return -1;
|
|
}
|
|
wpas_notify_network_added(wpa_s, ssid);
|
|
wpa_config_set_network_defaults(ssid);
|
|
ssid->priority = cred->priority;
|
|
ssid->temporary = 1;
|
|
ssid->ssid = os_zalloc(ie[1] + 1);
|
|
if (ssid->ssid == NULL)
|
|
goto fail;
|
|
os_memcpy(ssid->ssid, ie + 2, ie[1]);
|
|
ssid->ssid_len = ie[1];
|
|
|
|
if (interworking_set_hs20_params(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;
|
|
}
|
|
break;
|
|
case EAP_TYPE_PEAP:
|
|
os_snprintf(buf, sizeof(buf), "\"auth=%s\"",
|
|
eap_get_name(EAP_VENDOR_IETF, eap->inner_method));
|
|
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_config_update_prio_list(wpa_s->conf);
|
|
interworking_reconnect(wpa_s);
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
wpas_notify_network_removed(wpa_s, ssid);
|
|
wpa_config_remove_network(wpa_s->conf, ssid->id);
|
|
nai_realm_free(realm, count);
|
|
return -1;
|
|
}
|
|
|
|
|
|
static struct wpa_cred * interworking_credentials_available_3gpp(
|
|
struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
|
|
{
|
|
struct wpa_cred *cred, *selected = NULL;
|
|
int ret;
|
|
|
|
#ifdef INTERWORKING_3GPP
|
|
if (bss->anqp == NULL || bss->anqp->anqp_3gpp == NULL)
|
|
return NULL;
|
|
|
|
for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
|
|
char *sep;
|
|
const char *imsi;
|
|
int mnc_len;
|
|
|
|
#ifdef PCSC_FUNCS
|
|
if (cred->pcsc && wpa_s->conf->pcsc_reader && wpa_s->scard &&
|
|
wpa_s->imsi[0]) {
|
|
imsi = wpa_s->imsi;
|
|
mnc_len = wpa_s->mnc_len;
|
|
goto compare;
|
|
}
|
|
#endif /* PCSC_FUNCS */
|
|
|
|
if (cred->imsi == NULL || !cred->imsi[0] ||
|
|
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;
|
|
imsi = cred->imsi;
|
|
|
|
#ifdef PCSC_FUNCS
|
|
compare:
|
|
#endif /* PCSC_FUNCS */
|
|
wpa_printf(MSG_DEBUG, "Interworking: Parsing 3GPP info from "
|
|
MACSTR, MAC2STR(bss->bssid));
|
|
ret = plmn_id_match(bss->anqp->anqp_3gpp, imsi, mnc_len);
|
|
wpa_printf(MSG_DEBUG, "PLMN match %sfound", ret ? "" : "not ");
|
|
if (ret) {
|
|
if (selected == NULL ||
|
|
selected->priority < cred->priority)
|
|
selected = cred;
|
|
}
|
|
}
|
|
#endif /* INTERWORKING_3GPP */
|
|
return selected;
|
|
}
|
|
|
|
|
|
static struct wpa_cred * interworking_credentials_available_realm(
|
|
struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
|
|
{
|
|
struct wpa_cred *cred, *selected = NULL;
|
|
struct nai_realm *realm;
|
|
u16 count, i;
|
|
|
|
if (bss->anqp == NULL || bss->anqp->nai_realm == NULL)
|
|
return NULL;
|
|
|
|
if (wpa_s->conf->cred == NULL)
|
|
return NULL;
|
|
|
|
wpa_printf(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_printf(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(cred, &realm[i])) {
|
|
if (selected == NULL ||
|
|
selected->priority < cred->priority)
|
|
selected = cred;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
nai_realm_free(realm, count);
|
|
|
|
return selected;
|
|
}
|
|
|
|
|
|
static struct wpa_cred * interworking_credentials_available(
|
|
struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
|
|
{
|
|
struct wpa_cred *cred, *cred2;
|
|
|
|
cred = interworking_credentials_available_realm(wpa_s, bss);
|
|
cred2 = interworking_credentials_available_3gpp(wpa_s, bss);
|
|
if (cred && cred2 && cred2->priority >= cred->priority)
|
|
cred = cred2;
|
|
if (!cred)
|
|
cred = cred2;
|
|
|
|
cred2 = interworking_credentials_available_roaming_consortium(wpa_s,
|
|
bss);
|
|
if (cred && cred2 && cred2->priority >= cred->priority)
|
|
cred = cred2;
|
|
if (!cred)
|
|
cred = cred2;
|
|
|
|
return cred;
|
|
}
|
|
|
|
|
|
static int domain_name_list_contains(struct wpabuf *domain_names,
|
|
const char *domain)
|
|
{
|
|
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;
|
|
|
|
pos += 1 + pos[0];
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int interworking_home_sp(struct wpa_supplicant *wpa_s,
|
|
struct wpabuf *domain_names)
|
|
{
|
|
struct wpa_cred *cred;
|
|
#ifdef INTERWORKING_3GPP
|
|
char nai[100], *realm;
|
|
#endif /* INTERWORKING_3GPP */
|
|
|
|
if (domain_names == NULL || wpa_s->conf->cred == NULL)
|
|
return -1;
|
|
|
|
for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
|
|
#ifdef INTERWORKING_3GPP
|
|
char *imsi = NULL;
|
|
int mnc_len = 0;
|
|
if (cred->imsi)
|
|
imsi = cred->imsi;
|
|
#ifdef CONFIG_PCSC
|
|
else if (cred->pcsc && wpa_s->conf->pcsc_reader &&
|
|
wpa_s->scard && wpa_s->imsi[0]) {
|
|
imsi = wpa_s->imsi;
|
|
mnc_len = wpa_s->mnc_len;
|
|
}
|
|
#endif /* CONFIG_PCSC */
|
|
if (imsi && build_root_nai(nai, sizeof(nai), imsi, mnc_len, 0)
|
|
== 0) {
|
|
realm = os_strchr(nai, '@');
|
|
if (realm)
|
|
realm++;
|
|
wpa_printf(MSG_DEBUG, "Interworking: Search for match "
|
|
"with SIM/USIM domain %s", realm);
|
|
if (realm &&
|
|
domain_name_list_contains(domain_names, realm))
|
|
return 1;
|
|
}
|
|
#endif /* INTERWORKING_3GPP */
|
|
|
|
if (cred->domain == NULL)
|
|
continue;
|
|
|
|
wpa_printf(MSG_DEBUG, "Interworking: Search for match with "
|
|
"home SP FQDN %s", cred->domain);
|
|
if (domain_name_list_contains(domain_names, cred->domain))
|
|
return 1;
|
|
}
|
|
|
|
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 void interworking_select_network(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct wpa_bss *bss, *selected = NULL, *selected_home = NULL;
|
|
int selected_prio = -999999, selected_home_prio = -999999;
|
|
unsigned int count = 0;
|
|
const char *type;
|
|
int res;
|
|
struct wpa_cred *cred;
|
|
|
|
wpa_s->network_select = 0;
|
|
|
|
dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
|
|
cred = interworking_credentials_available(wpa_s, bss);
|
|
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_printf(MSG_DEBUG, "Interworking: Credential match "
|
|
"with " MACSTR " but network does not use "
|
|
"RSN", MAC2STR(bss->bssid));
|
|
continue;
|
|
}
|
|
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";
|
|
wpa_msg(wpa_s, MSG_INFO, INTERWORKING_AP MACSTR " type=%s",
|
|
MAC2STR(bss->bssid), type);
|
|
if (wpa_s->auto_select ||
|
|
(wpa_s->conf->auto_interworking &&
|
|
wpa_s->auto_network_select)) {
|
|
if (selected == NULL ||
|
|
cred->priority > selected_prio) {
|
|
selected = bss;
|
|
selected_prio = cred->priority;
|
|
}
|
|
if (res > 0 &&
|
|
(selected_home == NULL ||
|
|
cred->priority > selected_home_prio)) {
|
|
selected_home = bss;
|
|
selected_home_prio = cred->priority;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (selected_home && selected_home != selected &&
|
|
selected_home_prio >= selected_prio) {
|
|
/* Prefer network operated by the Home SP */
|
|
selected = selected_home;
|
|
}
|
|
|
|
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_printf(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_printf(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 (selected)
|
|
interworking_connect(wpa_s, selected);
|
|
}
|
|
|
|
|
|
static void interworking_next_anqp_fetch(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct wpa_bss *bss;
|
|
int found = 0;
|
|
const u8 *ie;
|
|
|
|
if (!wpa_s->fetch_anqp_in_progress)
|
|
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 (!(bss->flags & WPA_BSS_ANQP_FETCH_TRIED)) {
|
|
if (bss->anqp == NULL) {
|
|
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) {
|
|
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;
|
|
interworking_next_anqp_fetch(wpa_s);
|
|
}
|
|
|
|
|
|
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;
|
|
|
|
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)
|
|
{
|
|
struct wpabuf *buf;
|
|
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)
|
|
freq = bss->freq;
|
|
if (freq <= 0)
|
|
return -1;
|
|
|
|
wpa_printf(MSG_DEBUG, "ANQP: Query Request to " MACSTR " for %u id(s)",
|
|
MAC2STR(dst), (unsigned int) num_ids);
|
|
|
|
buf = anqp_build_req(info_ids, num_ids, NULL);
|
|
if (buf == NULL)
|
|
return -1;
|
|
|
|
res = gas_query_req(wpa_s->gas, dst, freq, buf, anqp_resp_cb, wpa_s);
|
|
if (res < 0) {
|
|
wpa_printf(MSG_DEBUG, "ANQP: Failed to send Query Request");
|
|
ret = -1;
|
|
} else
|
|
wpa_printf(MSG_DEBUG, "ANQP: Query started with dialog token "
|
|
"%u", res);
|
|
|
|
wpabuf_free(buf);
|
|
return ret;
|
|
}
|
|
|
|
|
|
static void interworking_parse_rx_anqp_resp(struct wpa_supplicant *wpa_s,
|
|
const u8 *sa, u16 info_id,
|
|
const u8 *data, size_t slen)
|
|
{
|
|
const u8 *pos = data;
|
|
struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, sa);
|
|
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));
|
|
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, sa, pos,
|
|
slen);
|
|
break;
|
|
default:
|
|
wpa_printf(MSG_DEBUG, "HS20: Unsupported ANQP "
|
|
"vendor type %u", type);
|
|
break;
|
|
}
|
|
break;
|
|
#endif /* CONFIG_HS20 */
|
|
default:
|
|
wpa_printf(MSG_DEBUG, "Interworking: Unsupported "
|
|
"vendor-specific ANQP OUI %06x",
|
|
WPA_GET_BE24(pos));
|
|
return;
|
|
}
|
|
break;
|
|
default:
|
|
wpa_printf(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;
|
|
|
|
if (result != GAS_QUERY_SUCCESS)
|
|
return;
|
|
|
|
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_printf(MSG_DEBUG, "ANQP: Unexpected Advertisement "
|
|
"Protocol in response");
|
|
return;
|
|
}
|
|
|
|
pos = wpabuf_head(resp);
|
|
end = pos + wpabuf_len(resp);
|
|
|
|
while (pos < end) {
|
|
if (pos + 4 > end) {
|
|
wpa_printf(MSG_DEBUG, "ANQP: Invalid element");
|
|
break;
|
|
}
|
|
info_id = WPA_GET_LE16(pos);
|
|
pos += 2;
|
|
slen = WPA_GET_LE16(pos);
|
|
pos += 2;
|
|
if (pos + slen > end) {
|
|
wpa_printf(MSG_DEBUG, "ANQP: Invalid element length "
|
|
"for Info ID %u", info_id);
|
|
break;
|
|
}
|
|
interworking_parse_rx_anqp_resp(wpa_s, dst, info_id, pos,
|
|
slen);
|
|
pos += slen;
|
|
}
|
|
}
|
|
|
|
|
|
static void interworking_scan_res_handler(struct wpa_supplicant *wpa_s,
|
|
struct wpa_scan_results *scan_res)
|
|
{
|
|
wpa_printf(MSG_DEBUG, "Interworking: Scan results available - start "
|
|
"ANQP fetch");
|
|
interworking_start_fetch_anqp(wpa_s);
|
|
}
|
|
|
|
|
|
int interworking_select(struct wpa_supplicant *wpa_s, int auto_select)
|
|
{
|
|
interworking_stop_fetch_anqp(wpa_s);
|
|
wpa_s->network_select = 1;
|
|
wpa_s->auto_network_select = 0;
|
|
wpa_s->auto_select = !!auto_select;
|
|
wpa_s->fetch_all_anqp = 0;
|
|
wpa_printf(MSG_DEBUG, "Interworking: Start scan for network "
|
|
"selection");
|
|
wpa_s->scan_res_handler = interworking_scan_res_handler;
|
|
wpa_s->scan_req = 2;
|
|
wpa_supplicant_req_scan(wpa_s, 0, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void gas_resp_cb(void *ctx, const u8 *addr, 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_msg(wpa_s, MSG_INFO, GAS_RESPONSE_INFO "addr=" MACSTR
|
|
" dialog_token=%d status_code=%d resp_len=%d",
|
|
MAC2STR(addr), dialog_token, status_code,
|
|
resp ? (int) wpabuf_len(resp) : -1);
|
|
if (!resp)
|
|
return;
|
|
|
|
wpabuf_free(wpa_s->last_gas_resp);
|
|
wpa_s->last_gas_resp = wpabuf_dup(resp);
|
|
if (wpa_s->last_gas_resp == NULL)
|
|
return;
|
|
os_memcpy(wpa_s->last_gas_addr, addr, ETH_ALEN);
|
|
wpa_s->last_gas_dialog_token = dialog_token;
|
|
}
|
|
|
|
|
|
int gas_send_request(struct wpa_supplicant *wpa_s, const u8 *dst,
|
|
const struct wpabuf *adv_proto,
|
|
const struct wpabuf *query)
|
|
{
|
|
struct wpabuf *buf;
|
|
int ret = 0;
|
|
int freq;
|
|
struct wpa_bss *bss;
|
|
int res;
|
|
size_t len;
|
|
u8 query_resp_len_limit = 0, pame_bi = 0;
|
|
|
|
freq = wpa_s->assoc_freq;
|
|
bss = wpa_bss_get_bssid(wpa_s, dst);
|
|
if (bss)
|
|
freq = bss->freq;
|
|
if (freq <= 0)
|
|
return -1;
|
|
|
|
wpa_printf(MSG_DEBUG, "GAS request to " MACSTR " (freq %d MHz)",
|
|
MAC2STR(dst), freq);
|
|
wpa_hexdump_buf(MSG_DEBUG, "Advertisement Protocol ID", adv_proto);
|
|
wpa_hexdump_buf(MSG_DEBUG, "GAS Query", query);
|
|
|
|
len = 3 + wpabuf_len(adv_proto) + 2;
|
|
if (query)
|
|
len += wpabuf_len(query);
|
|
buf = gas_build_initial_req(0, len);
|
|
if (buf == NULL)
|
|
return -1;
|
|
|
|
/* Advertisement Protocol IE */
|
|
wpabuf_put_u8(buf, WLAN_EID_ADV_PROTO);
|
|
wpabuf_put_u8(buf, 1 + wpabuf_len(adv_proto)); /* Length */
|
|
wpabuf_put_u8(buf, (query_resp_len_limit & 0x7f) |
|
|
(pame_bi ? 0x80 : 0));
|
|
wpabuf_put_buf(buf, adv_proto);
|
|
|
|
/* GAS Query */
|
|
if (query) {
|
|
wpabuf_put_le16(buf, wpabuf_len(query));
|
|
wpabuf_put_buf(buf, query);
|
|
} else
|
|
wpabuf_put_le16(buf, 0);
|
|
|
|
res = gas_query_req(wpa_s->gas, dst, freq, buf, gas_resp_cb, wpa_s);
|
|
if (res < 0) {
|
|
wpa_printf(MSG_DEBUG, "GAS: Failed to send Query Request");
|
|
ret = -1;
|
|
} else
|
|
wpa_printf(MSG_DEBUG, "GAS: Query started with dialog token "
|
|
"%u", res);
|
|
|
|
wpabuf_free(buf);
|
|
return ret;
|
|
}
|