X-Git-Url: http://www.project-moonshot.org/gitweb/?a=blobdiff_plain;f=wpa_supplicant%2Fwps_supplicant.c;h=74a420c671d0c6eb85c388efb90606edb0e2ed81;hb=6013bbe04f138f7d5d750a3e1939732cbde0426a;hp=dc989d9a3f223c5f06b28159900a99d66d784574;hpb=e694b34474374c02aac98a11d3b9a7420229fa0c;p=mech_eap.git diff --git a/wpa_supplicant/wps_supplicant.c b/wpa_supplicant/wps_supplicant.c index dc989d9..74a420c 100644 --- a/wpa_supplicant/wps_supplicant.c +++ b/wpa_supplicant/wps_supplicant.c @@ -1,45 +1,89 @@ /* * wpa_supplicant / WPS integration - * Copyright (c) 2008, Jouni Malinen + * Copyright (c) 2008-2014, Jouni Malinen * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Alternatively, this software may be distributed under the terms of BSD - * license. - * - * See README and COPYING for more details. + * This software may be distributed under the terms of the BSD license. + * See README for more details. */ #include "includes.h" #include "common.h" -#include "ieee802_11_defs.h" -#include "ieee802_11_common.h" -#include "wpa_common.h" -#include "config.h" +#include "eloop.h" +#include "uuid.h" +#include "crypto/random.h" +#include "crypto/dh_group5.h" +#include "common/ieee802_11_defs.h" +#include "common/ieee802_11_common.h" +#include "common/wpa_common.h" +#include "common/wpa_ctrl.h" +#include "eap_common/eap_wsc_common.h" #include "eap_peer/eap.h" +#include "eapol_supp/eapol_supp_sm.h" +#include "rsn_supp/wpa.h" +#include "wps/wps_attr_parse.h" +#include "config.h" #include "wpa_supplicant_i.h" #include "driver_i.h" -#include "eloop.h" -#include "uuid.h" -#include "wpa_ctrl.h" #include "notify.h" -#include "eap_common/eap_wsc_common.h" #include "blacklist.h" -#include "wpa.h" +#include "bss.h" +#include "scan.h" +#include "ap.h" +#include "p2p/p2p.h" +#include "p2p_supplicant.h" #include "wps_supplicant.h" -#include "dh_group5.h" + +#ifndef WPS_PIN_SCAN_IGNORE_SEL_REG #define WPS_PIN_SCAN_IGNORE_SEL_REG 3 +#endif /* WPS_PIN_SCAN_IGNORE_SEL_REG */ + +/* + * The minimum time in seconds before trying to associate to a WPS PIN AP that + * does not have Selected Registrar TRUE. + */ +#ifndef WPS_PIN_TIME_IGNORE_SEL_REG +#define WPS_PIN_TIME_IGNORE_SEL_REG 5 +#endif /* WPS_PIN_TIME_IGNORE_SEL_REG */ static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx); static void wpas_clear_wps(struct wpa_supplicant *wpa_s); +static void wpas_wps_clear_ap_info(struct wpa_supplicant *wpa_s) +{ + os_free(wpa_s->wps_ap); + wpa_s->wps_ap = NULL; + wpa_s->num_wps_ap = 0; + wpa_s->wps_ap_iter = 0; +} + + +static void wpas_wps_assoc_with_cred(void *eloop_ctx, void *timeout_ctx) +{ + struct wpa_supplicant *wpa_s = eloop_ctx; + int use_fast_assoc = timeout_ctx != NULL; + + wpa_printf(MSG_DEBUG, "WPS: Continuing association after eapol_cb"); + if (!use_fast_assoc || + wpa_supplicant_fast_associate(wpa_s) != 1) + wpa_supplicant_req_scan(wpa_s, 0, 0); +} + + +static void wpas_wps_assoc_with_cred_cancel(struct wpa_supplicant *wpa_s) +{ + eloop_cancel_timeout(wpas_wps_assoc_with_cred, wpa_s, (void *) 0); + eloop_cancel_timeout(wpas_wps_assoc_with_cred, wpa_s, (void *) 1); +} + + int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s) { + if (wpas_p2p_wps_eapol_cb(wpa_s) > 0) + return 1; + if (!wpa_s->wps_success && wpa_s->current_ssid && eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) { @@ -61,16 +105,63 @@ int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s) return 1; } + wpas_wps_clear_ap_info(wpa_s); eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL); + if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && !wpa_s->wps_success) + wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL); if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid && !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { + int disabled = wpa_s->current_ssid->disabled; + unsigned int freq = wpa_s->assoc_freq; + struct wpa_bss *bss; + struct wpa_ssid *ssid = NULL; + int use_fast_assoc = 0; + wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - " - "try to associate with the received credential"); + "try to associate with the received credential " + "(freq=%u)", freq); + wpa_s->own_disconnect_req = 1; wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); + if (disabled) { + wpa_printf(MSG_DEBUG, "WPS: Current network is " + "disabled - wait for user to enable"); + return 1; + } + wpa_s->after_wps = 5; + wpa_s->wps_freq = freq; + wpa_s->normal_scans = 0; wpa_s->reassociate = 1; - wpa_supplicant_req_scan(wpa_s, 0, 0); + + wpa_printf(MSG_DEBUG, "WPS: Checking whether fast association " + "without a new scan can be used"); + bss = wpa_supplicant_pick_network(wpa_s, &ssid); + if (bss) { + struct wpabuf *wps; + struct wps_parse_attr attr; + + wps = wpa_bss_get_vendor_ie_multi(bss, + WPS_IE_VENDOR_TYPE); + if (wps && wps_parse_msg(wps, &attr) == 0 && + attr.wps_state && + *attr.wps_state == WPS_STATE_CONFIGURED) + use_fast_assoc = 1; + wpabuf_free(wps); + } + + /* + * Complete the next step from an eloop timeout to allow pending + * driver events related to the disconnection to be processed + * first. This makes it less likely for disconnection event to + * cause problems with the following connection. + */ + wpa_printf(MSG_DEBUG, "WPS: Continue association from timeout"); + wpas_wps_assoc_with_cred_cancel(wpa_s); + eloop_register_timeout(0, 10000, + wpas_wps_assoc_with_cred, wpa_s, + use_fast_assoc ? (void *) 1 : + (void *) 0); return 1; } @@ -78,6 +169,7 @@ int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s) wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting " "for external credential processing"); wpas_clear_wps(wpa_s); + wpa_s->own_disconnect_req = 1; wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); return 1; @@ -92,8 +184,7 @@ static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s, const struct wps_credential *cred) { struct wpa_driver_capa capa; - size_t i; - struct wpa_scan_res *bss; + struct wpa_bss *bss; const u8 *ie; struct wpa_ie_data adv; int wpa2 = 0, ccmp = 0; @@ -109,38 +200,24 @@ static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s, if (wpa_drv_get_capa(wpa_s, &capa)) return; /* Unknown what driver supports */ - if (wpa_supplicant_get_scan_results(wpa_s) || wpa_s->scan_res == NULL) - return; /* Could not get scan results for checking advertised - * parameters */ - - for (i = 0; i < wpa_s->scan_res->num; i++) { - bss = wpa_s->scan_res->res[i]; - if (os_memcmp(bss->bssid, cred->mac_addr, ETH_ALEN) != 0) - continue; - ie = wpa_scan_get_ie(bss, WLAN_EID_SSID); - if (ie == NULL) - continue; - if (ie[1] != ssid->ssid_len || ssid->ssid == NULL || - os_memcmp(ie + 2, ssid->ssid, ssid->ssid_len) != 0) - continue; - - wpa_printf(MSG_DEBUG, "WPS: AP found from scan results"); - break; - } - - if (i == wpa_s->scan_res->num) { - wpa_printf(MSG_DEBUG, "WPS: The AP was not found from scan " - "results - use credential as-is"); + if (ssid->ssid == NULL) + return; + bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len); + if (bss == NULL) { + wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS " + "table - use credential as-is"); return; } - ie = wpa_scan_get_ie(bss, WLAN_EID_RSN); + wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table"); + + ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) { wpa2 = 1; if (adv.pairwise_cipher & WPA_CIPHER_CCMP) ccmp = 1; } else { - ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); + ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 && adv.pairwise_cipher & WPA_CIPHER_CCMP) ccmp = 1; @@ -183,13 +260,111 @@ static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s, } +static void wpas_wps_remove_dup_network(struct wpa_supplicant *wpa_s, + struct wpa_ssid *new_ssid) +{ + struct wpa_ssid *ssid, *next; + + for (ssid = wpa_s->conf->ssid, next = ssid ? ssid->next : NULL; ssid; + ssid = next, next = ssid ? ssid->next : NULL) { + /* + * new_ssid has already been added to the list in + * wpas_wps_add_network(), so skip it. + */ + if (ssid == new_ssid) + continue; + + if (ssid->bssid_set || new_ssid->bssid_set) { + if (ssid->bssid_set != new_ssid->bssid_set) + continue; + if (os_memcmp(ssid->bssid, new_ssid->bssid, ETH_ALEN) != + 0) + continue; + } + + /* compare SSID */ + if (ssid->ssid_len == 0 || ssid->ssid_len != new_ssid->ssid_len) + continue; + + if (ssid->ssid && new_ssid->ssid) { + if (os_memcmp(ssid->ssid, new_ssid->ssid, + ssid->ssid_len) != 0) + continue; + } else if (ssid->ssid || new_ssid->ssid) + continue; + + /* compare security parameters */ + if (ssid->auth_alg != new_ssid->auth_alg || + ssid->key_mgmt != new_ssid->key_mgmt || + (ssid->group_cipher != new_ssid->group_cipher && + !(ssid->group_cipher & new_ssid->group_cipher & + WPA_CIPHER_CCMP))) + continue; + + /* + * Some existing WPS APs will send two creds in case they are + * configured for mixed mode operation (WPA+WPA2 and TKIP+CCMP). + * Try to merge these two creds if they are received in the same + * M8 message. + */ + if (ssid->wps_run && ssid->wps_run == new_ssid->wps_run && + wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) { + if (new_ssid->passphrase && ssid->passphrase && + os_strcmp(new_ssid->passphrase, ssid->passphrase) != + 0) { + wpa_printf(MSG_DEBUG, + "WPS: M8 Creds with different passphrase - do not merge"); + continue; + } + + if (new_ssid->psk_set && + (!ssid->psk_set || + os_memcmp(new_ssid->psk, ssid->psk, 32) != 0)) { + wpa_printf(MSG_DEBUG, + "WPS: M8 Creds with different PSK - do not merge"); + continue; + } + + if ((new_ssid->passphrase && !ssid->passphrase) || + (!new_ssid->passphrase && ssid->passphrase)) { + wpa_printf(MSG_DEBUG, + "WPS: M8 Creds with different passphrase/PSK type - do not merge"); + continue; + } + + wpa_printf(MSG_DEBUG, + "WPS: Workaround - merge likely WPA/WPA2-mixed mode creds in same M8 message"); + new_ssid->proto |= ssid->proto; + new_ssid->pairwise_cipher |= ssid->pairwise_cipher; + } else { + /* + * proto and pairwise_cipher difference matter for + * non-mixed-mode creds. + */ + if (ssid->proto != new_ssid->proto || + ssid->pairwise_cipher != new_ssid->pairwise_cipher) + continue; + } + + /* Remove the duplicated older network entry. */ + wpa_printf(MSG_DEBUG, "Remove duplicate network %d", ssid->id); + wpas_notify_network_removed(wpa_s, ssid); + if (wpa_s->current_ssid == ssid) + wpa_s->current_ssid = NULL; + wpa_config_remove_network(wpa_s->conf, ssid->id); + } +} + + static int wpa_supplicant_wps_cred(void *ctx, const struct wps_credential *cred) { struct wpa_supplicant *wpa_s = ctx; struct wpa_ssid *ssid = wpa_s->current_ssid; - u8 key_idx = 0; u16 auth_type; +#ifdef CONFIG_WPS_REG_DISABLE_OPEN + int registrar = 0; +#endif /* CONFIG_WPS_REG_DISABLE_OPEN */ if ((wpa_s->conf->wps_cred_processing == 1 || wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) { @@ -231,7 +406,6 @@ static int wpa_supplicant_wps_cred(void *ctx, } if (auth_type != WPS_AUTH_OPEN && - auth_type != WPS_AUTH_SHARED && auth_type != WPS_AUTH_WPAPSK && auth_type != WPS_AUTH_WPA2PSK) { wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for " @@ -240,9 +414,25 @@ static int wpa_supplicant_wps_cred(void *ctx, return 0; } + if (auth_type == WPS_AUTH_WPAPSK || auth_type == WPS_AUTH_WPA2PSK) { + if (cred->key_len < 8 || cred->key_len > 2 * PMK_LEN) { + wpa_printf(MSG_ERROR, "WPS: Reject PSK credential with " + "invalid Network Key length %lu", + (unsigned long) cred->key_len); + return -1; + } + } + if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based " "on the received credential"); +#ifdef CONFIG_WPS_REG_DISABLE_OPEN + if (ssid->eap.identity && + ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN && + os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR, + WSC_ID_REGISTRAR_LEN) == 0) + registrar = 1; +#endif /* CONFIG_WPS_REG_DISABLE_OPEN */ os_free(ssid->eap.identity); ssid->eap.identity = NULL; ssid->eap.identity_len = 0; @@ -250,16 +440,35 @@ static int wpa_supplicant_wps_cred(void *ctx, ssid->eap.phase1 = NULL; os_free(ssid->eap.eap_methods); ssid->eap.eap_methods = NULL; + if (!ssid->p2p_group) { + ssid->temporary = 0; + ssid->bssid_set = 0; + } + ssid->disabled_until.sec = 0; + ssid->disabled_until.usec = 0; + ssid->auth_failures = 0; } else { wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the " "received credential"); ssid = wpa_config_add_network(wpa_s->conf); if (ssid == NULL) return -1; + if (wpa_s->current_ssid) { + /* + * Should the GO issue multiple credentials for some + * reason, each credential should be marked as a + * temporary P2P group similarly to the one that gets + * marked as such based on the pre-configured values + * used for the WPS network block. + */ + ssid->p2p_group = wpa_s->current_ssid->p2p_group; + ssid->temporary = wpa_s->current_ssid->temporary; + } wpas_notify_network_added(wpa_s, ssid); } wpa_config_set_network_defaults(ssid); + ssid->wps_run = wpa_s->wps_run; os_free(ssid->ssid); ssid->ssid = os_malloc(cred->ssid_len); @@ -271,43 +480,16 @@ static int wpa_supplicant_wps_cred(void *ctx, switch (cred->encr_type) { case WPS_ENCR_NONE: break; - case WPS_ENCR_WEP: - if (cred->key_len <= 0) - break; - if (cred->key_len != 5 && cred->key_len != 13 && - cred->key_len != 10 && cred->key_len != 26) { - wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length " - "%lu", (unsigned long) cred->key_len); - return -1; - } - if (cred->key_idx > NUM_WEP_KEYS) { - wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d", - cred->key_idx); - return -1; - } - if (cred->key_idx) - key_idx = cred->key_idx - 1; - if (cred->key_len == 10 || cred->key_len == 26) { - if (hexstr2bin((char *) cred->key, - ssid->wep_key[key_idx], - cred->key_len / 2) < 0) { - wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key " - "%d", key_idx); - return -1; - } - ssid->wep_key_len[key_idx] = cred->key_len / 2; - } else { - os_memcpy(ssid->wep_key[key_idx], cred->key, - cred->key_len); - ssid->wep_key_len[key_idx] = cred->key_len; - } - ssid->wep_tx_keyidx = key_idx; - break; case WPS_ENCR_TKIP: ssid->pairwise_cipher = WPA_CIPHER_TKIP; break; case WPS_ENCR_AES: ssid->pairwise_cipher = WPA_CIPHER_CCMP; + if (wpa_s->drv_capa_known && + (wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_GCMP)) { + ssid->pairwise_cipher |= WPA_CIPHER_GCMP; + ssid->group_cipher |= WPA_CIPHER_GCMP; + } break; } @@ -316,27 +498,22 @@ static int wpa_supplicant_wps_cred(void *ctx, ssid->auth_alg = WPA_AUTH_ALG_OPEN; ssid->key_mgmt = WPA_KEY_MGMT_NONE; ssid->proto = 0; - break; - case WPS_AUTH_SHARED: - ssid->auth_alg = WPA_AUTH_ALG_SHARED; - ssid->key_mgmt = WPA_KEY_MGMT_NONE; - ssid->proto = 0; +#ifdef CONFIG_WPS_REG_DISABLE_OPEN + if (registrar) { + wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK + "id=%d - Credentials for an open " + "network disabled by default - use " + "'select_network %d' to enable", + ssid->id, ssid->id); + ssid->disabled = 1; + } +#endif /* CONFIG_WPS_REG_DISABLE_OPEN */ break; case WPS_AUTH_WPAPSK: ssid->auth_alg = WPA_AUTH_ALG_OPEN; ssid->key_mgmt = WPA_KEY_MGMT_PSK; ssid->proto = WPA_PROTO_WPA; break; - case WPS_AUTH_WPA: - ssid->auth_alg = WPA_AUTH_ALG_OPEN; - ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X; - ssid->proto = WPA_PROTO_WPA; - break; - case WPS_AUTH_WPA2: - ssid->auth_alg = WPA_AUTH_ALG_OPEN; - ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X; - ssid->proto = WPA_PROTO_RSN; - break; case WPS_AUTH_WPA2PSK: ssid->auth_alg = WPA_AUTH_ALG_OPEN; ssid->key_mgmt = WPA_KEY_MGMT_PSK; @@ -353,6 +530,7 @@ static int wpa_supplicant_wps_cred(void *ctx, return -1; } ssid->psk_set = 1; + ssid->export_keys = 1; } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) { os_free(ssid->passphrase); ssid->passphrase = os_malloc(cred->key_len + 1); @@ -361,6 +539,7 @@ static int wpa_supplicant_wps_cred(void *ctx, os_memcpy(ssid->passphrase, cred->key, cred->key_len); ssid->passphrase[cred->key_len] = '\0'; wpa_config_update_psk(ssid); + ssid->export_keys = 1; } else { wpa_printf(MSG_ERROR, "WPS: Invalid Network Key " "length %lu", @@ -368,9 +547,12 @@ static int wpa_supplicant_wps_cred(void *ctx, return -1; } } + ssid->priority = wpa_s->conf->wps_priority; wpas_wps_security_workaround(wpa_s, ssid, cred); + wpas_wps_remove_dup_network(wpa_s, ssid); + #ifndef CONFIG_NO_CONFIG_WRITE if (wpa_s->conf->update_config && wpa_config_write(wpa_s->confname, wpa_s->conf)) { @@ -379,6 +561,16 @@ static int wpa_supplicant_wps_cred(void *ctx, } #endif /* CONFIG_NO_CONFIG_WRITE */ + if (ssid->priority) + wpa_config_update_prio_list(wpa_s->conf); + + /* + * Optimize the post-WPS scan based on the channel used during + * the provisioning in case EAP-Failure is not received. + */ + wpa_s->after_wps = 5; + wpa_s->wps_freq = wpa_s->assoc_freq; + return 0; } @@ -390,15 +582,111 @@ static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s, "dev_password_id=%d config_error=%d", m2d->dev_password_id, m2d->config_error); wpas_notify_wps_event_m2d(wpa_s, m2d); +#ifdef CONFIG_P2P + if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s) { + wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_M2D + "dev_password_id=%d config_error=%d", + m2d->dev_password_id, m2d->config_error); + } + if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) { + /* + * Notify P2P from eloop timeout to avoid issues with the + * interface getting removed while processing a message. + */ + eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb, wpa_s, + NULL); + } +#endif /* CONFIG_P2P */ +} + + +static void wpas_wps_clear_timeout(void *eloop_ctx, void *timeout_ctx) +{ + struct wpa_supplicant *wpa_s = eloop_ctx; + wpa_printf(MSG_DEBUG, "WPS: Clear WPS network from timeout"); + wpas_clear_wps(wpa_s); } static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s, struct wps_event_fail *fail) { - wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL "msg=%d", fail->msg); - wpas_clear_wps(wpa_s); + if (fail->error_indication > 0 && + fail->error_indication < NUM_WPS_EI_VALUES) { + wpa_msg(wpa_s, MSG_INFO, + WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)", + fail->msg, fail->config_error, fail->error_indication, + wps_ei_str(fail->error_indication)); + if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s) + wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_FAIL + "msg=%d config_error=%d reason=%d (%s)", + fail->msg, fail->config_error, + fail->error_indication, + wps_ei_str(fail->error_indication)); + } else { + wpa_msg(wpa_s, MSG_INFO, + WPS_EVENT_FAIL "msg=%d config_error=%d", + fail->msg, fail->config_error); + if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s) + wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_FAIL + "msg=%d config_error=%d", + fail->msg, fail->config_error); + } + + /* + * Need to allow WPS processing to complete, e.g., by sending WSC_NACK. + */ + wpa_printf(MSG_DEBUG, "WPS: Register timeout to clear WPS network"); + eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL); + eloop_register_timeout(0, 100000, wpas_wps_clear_timeout, wpa_s, NULL); + wpas_notify_wps_event_fail(wpa_s, fail); + wpas_p2p_wps_failed(wpa_s, fail); +} + + +static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx); + +static void wpas_wps_reenable_networks(struct wpa_supplicant *wpa_s) +{ + struct wpa_ssid *ssid; + int changed = 0; + + eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL); + + for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { + if (ssid->disabled_for_connect && ssid->disabled) { + ssid->disabled_for_connect = 0; + ssid->disabled = 0; + wpas_notify_network_enabled_changed(wpa_s, ssid); + changed++; + } + } + + if (changed) { +#ifndef CONFIG_NO_CONFIG_WRITE + if (wpa_s->conf->update_config && + wpa_config_write(wpa_s->confname, wpa_s->conf)) { + wpa_printf(MSG_DEBUG, "WPS: Failed to update " + "configuration"); + } +#endif /* CONFIG_NO_CONFIG_WRITE */ + } +} + + +static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx) +{ + struct wpa_supplicant *wpa_s = eloop_ctx; + /* Enable the networks disabled during wpas_wps_reassoc */ + wpas_wps_reenable_networks(wpa_s); +} + + +int wpas_wps_reenable_networks_pending(struct wpa_supplicant *wpa_s) +{ + return eloop_is_timeout_registered(wpas_wps_reenable_networks_cb, + wpa_s, NULL); } @@ -407,6 +695,19 @@ static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s) wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS); wpa_s->wps_success = 1; wpas_notify_wps_event_success(wpa_s); + if (wpa_s->current_ssid) + wpas_clear_temp_disabled(wpa_s, wpa_s->current_ssid, 1); + wpa_s->extra_blacklist_count = 0; + + /* + * Enable the networks disabled during wpas_wps_reassoc after 10 + * seconds. The 10 seconds timer is to allow the data connection to be + * formed before allowing other networks to be selected. + */ + eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s, + NULL); + + wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0); } @@ -414,14 +715,12 @@ static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s, struct wps_event_er_ap *ap) { char uuid_str[100]; - char dev_type[20]; + char dev_type[WPS_DEV_TYPE_BUFSIZE]; uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str)); if (ap->pri_dev_type) - os_snprintf(dev_type, sizeof(dev_type), "%u-%08X-%u", - WPA_GET_BE16(ap->pri_dev_type), - WPA_GET_BE32(ap->pri_dev_type + 2), - WPA_GET_BE16(ap->pri_dev_type + 6)); + wps_dev_type_bin2str(ap->pri_dev_type, dev_type, + sizeof(dev_type)); else dev_type[0] = '\0'; @@ -450,14 +749,12 @@ static void wpa_supplicant_wps_event_er_enrollee_add( struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee) { char uuid_str[100]; - char dev_type[20]; + char dev_type[WPS_DEV_TYPE_BUFSIZE]; uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str)); if (enrollee->pri_dev_type) - os_snprintf(dev_type, sizeof(dev_type), "%u-%08X-%u", - WPA_GET_BE16(enrollee->pri_dev_type), - WPA_GET_BE32(enrollee->pri_dev_type + 2), - WPA_GET_BE16(enrollee->pri_dev_type + 6)); + wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type, + sizeof(dev_type)); else dev_type[0] = '\0'; @@ -484,6 +781,59 @@ static void wpa_supplicant_wps_event_er_enrollee_remove( } +static void wpa_supplicant_wps_event_er_ap_settings( + struct wpa_supplicant *wpa_s, + struct wps_event_er_ap_settings *ap_settings) +{ + char uuid_str[100]; + char key_str[65]; + const struct wps_credential *cred = ap_settings->cred; + + key_str[0] = '\0'; + if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) { + if (cred->key_len >= 8 && cred->key_len <= 64) { + os_memcpy(key_str, cred->key, cred->key_len); + key_str[cred->key_len] = '\0'; + } + } + + uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str)); + /* Use wpa_msg_ctrl to avoid showing the key in debug log */ + wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS + "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x " + "key=%s", + uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len), + cred->auth_type, cred->encr_type, key_str); +} + + +static void wpa_supplicant_wps_event_er_set_sel_reg( + struct wpa_supplicant *wpa_s, + struct wps_event_er_set_selected_registrar *ev) +{ + char uuid_str[100]; + + uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str)); + switch (ev->state) { + case WPS_ER_SET_SEL_REG_START: + wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG + "uuid=%s state=START sel_reg=%d dev_passwd_id=%u " + "sel_reg_config_methods=0x%x", + uuid_str, ev->sel_reg, ev->dev_passwd_id, + ev->sel_reg_config_methods); + break; + case WPS_ER_SET_SEL_REG_DONE: + wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG + "uuid=%s state=DONE", uuid_str); + break; + case WPS_ER_SET_SEL_REG_FAILED: + wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG + "uuid=%s state=FAILED", uuid_str); + break; + } +} + + static void wpa_supplicant_wps_event(void *ctx, enum wps_event event, union wps_event_data *data) { @@ -499,11 +849,21 @@ static void wpa_supplicant_wps_event(void *ctx, enum wps_event event, wpa_supplicant_wps_event_success(wpa_s); break; case WPS_EV_PWD_AUTH_FAIL: +#ifdef CONFIG_AP + if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee) + wpa_supplicant_ap_pwd_auth_fail(wpa_s); +#endif /* CONFIG_AP */ break; case WPS_EV_PBC_OVERLAP: break; case WPS_EV_PBC_TIMEOUT: break; + case WPS_EV_PBC_ACTIVE: + wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ACTIVE); + break; + case WPS_EV_PBC_DISABLE: + wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_DISABLE); + break; case WPS_EV_ER_AP_ADD: wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap); break; @@ -518,10 +878,32 @@ static void wpa_supplicant_wps_event(void *ctx, enum wps_event event, wpa_supplicant_wps_event_er_enrollee_remove(wpa_s, &data->enrollee); break; + case WPS_EV_ER_AP_SETTINGS: + wpa_supplicant_wps_event_er_ap_settings(wpa_s, + &data->ap_settings); + break; + case WPS_EV_ER_SET_SELECTED_REGISTRAR: + wpa_supplicant_wps_event_er_set_sel_reg(wpa_s, + &data->set_sel_reg); + break; + case WPS_EV_AP_PIN_SUCCESS: + break; } } +static int wpa_supplicant_wps_rf_band(void *ctx) +{ + struct wpa_supplicant *wpa_s = ctx; + + if (!wpa_s->current_ssid || !wpa_s->assoc_freq) + return 0; + + return (wpa_s->assoc_freq > 50000) ? WPS_RF_60GHZ : + (wpa_s->assoc_freq > 2484) ? WPS_RF_50GHZ : WPS_RF_24GHZ; +} + + enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid) { if (eap_is_wps_pbc_enrollee(&ssid->eap) || @@ -535,18 +917,27 @@ enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid) static void wpas_clear_wps(struct wpa_supplicant *wpa_s) { int id; - struct wpa_ssid *ssid, *remove_ssid = NULL; + struct wpa_ssid *ssid, *remove_ssid = NULL, *prev_current; + + wpa_s->after_wps = 0; + wpa_s->known_wps_freq = 0; + + prev_current = wpa_s->current_ssid; + + /* Enable the networks disabled during wpas_wps_reassoc */ + wpas_wps_reenable_networks(wpa_s); eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL); + eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL); /* Remove any existing WPS network from configuration */ ssid = wpa_s->conf->ssid; while (ssid) { if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { if (ssid == wpa_s->current_ssid) { - wpa_s->current_ssid = NULL; - if (ssid != NULL) - wpas_notify_network_changed(wpa_s); + wpa_s->own_disconnect_req = 1; + wpa_supplicant_deauthenticate( + wpa_s, WLAN_REASON_DEAUTH_LEAVING); } id = ssid->id; remove_ssid = ssid; @@ -554,24 +945,44 @@ static void wpas_clear_wps(struct wpa_supplicant *wpa_s) id = -1; ssid = ssid->next; if (id >= 0) { + if (prev_current == remove_ssid) { + wpa_sm_set_config(wpa_s->wpa, NULL); + eapol_sm_notify_config(wpa_s->eapol, NULL, + NULL); + } wpas_notify_network_removed(wpa_s, remove_ssid); wpa_config_remove_network(wpa_s->conf, id); } } + + wpas_wps_clear_ap_info(wpa_s); } static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx) { struct wpa_supplicant *wpa_s = eloop_ctx; - wpa_printf(MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed " - "out"); + union wps_event_data data; + + wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed " + "out"); + os_memset(&data, 0, sizeof(data)); + data.fail.config_error = WPS_CFG_MSG_TIMEOUT; + data.fail.error_indication = WPS_EI_NO_ERROR; + /* + * Call wpas_notify_wps_event_fail() directly instead of through + * wpa_supplicant_wps_event() which would end up registering unnecessary + * timeouts (those are only for the case where the failure happens + * during an EAP-WSC exchange). + */ + wpas_notify_wps_event_fail(wpa_s, &data.fail); wpas_clear_wps(wpa_s); } static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s, - int registrar, const u8 *bssid) + int registrar, const u8 *dev_addr, + const u8 *bssid) { struct wpa_ssid *ssid; @@ -580,6 +991,7 @@ static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s, return NULL; wpas_notify_network_added(wpa_s, ssid); wpa_config_set_network_defaults(ssid); + ssid->temporary = 1; if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 || wpa_config_set(ssid, "eap", "WSC", 0) < 0 || wpa_config_set(ssid, "identity", registrar ? @@ -590,153 +1002,334 @@ static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s, return NULL; } +#ifdef CONFIG_P2P + if (dev_addr) + os_memcpy(ssid->go_p2p_dev_addr, dev_addr, ETH_ALEN); +#endif /* CONFIG_P2P */ + if (bssid) { - size_t i; - struct wpa_scan_res *res; +#ifndef CONFIG_P2P + struct wpa_bss *bss; + int count = 0; +#endif /* CONFIG_P2P */ os_memcpy(ssid->bssid, bssid, ETH_ALEN); ssid->bssid_set = 1; - /* Try to get SSID from scan results */ - if (wpa_s->scan_res == NULL && - wpa_supplicant_get_scan_results(wpa_s) < 0) - return ssid; /* Could not find any scan results */ - - for (i = 0; i < wpa_s->scan_res->num; i++) { - const u8 *ie; - - res = wpa_s->scan_res->res[i]; - if (os_memcmp(bssid, res->bssid, ETH_ALEN) != 0) + /* + * Note: With P2P, the SSID may change at the time the WPS + * provisioning is started, so better not filter the AP based + * on the current SSID in the scan results. + */ +#ifndef CONFIG_P2P + dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { + if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0) continue; - ie = wpa_scan_get_ie(res, WLAN_EID_SSID); - if (ie == NULL) - break; os_free(ssid->ssid); - ssid->ssid = os_malloc(ie[1]); + ssid->ssid = os_malloc(bss->ssid_len); if (ssid->ssid == NULL) break; - os_memcpy(ssid->ssid, ie + 2, ie[1]); - ssid->ssid_len = ie[1]; - break; + os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len); + ssid->ssid_len = bss->ssid_len; + wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from " + "scan results", + ssid->ssid, ssid->ssid_len); + count++; + } + + if (count > 1) { + wpa_printf(MSG_DEBUG, "WPS: More than one SSID found " + "for the AP; use wildcard"); + os_free(ssid->ssid); + ssid->ssid = NULL; + ssid->ssid_len = 0; } +#endif /* CONFIG_P2P */ } return ssid; } -static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s, - struct wpa_ssid *selected) +static void wpas_wps_temp_disable(struct wpa_supplicant *wpa_s, + struct wpa_ssid *selected) { struct wpa_ssid *ssid; + if (wpa_s->current_ssid) { + wpa_s->own_disconnect_req = 1; + wpa_supplicant_deauthenticate( + wpa_s, WLAN_REASON_DEAUTH_LEAVING); + } + /* Mark all other networks disabled and trigger reassociation */ ssid = wpa_s->conf->ssid; while (ssid) { int was_disabled = ssid->disabled; - ssid->disabled = ssid != selected; - if (was_disabled != ssid->disabled) - wpas_notify_network_enabled_changed(wpa_s, ssid); + ssid->disabled_for_connect = 0; + /* + * In case the network object corresponds to a persistent group + * then do not send out network disabled signal. In addition, + * do not change disabled status of persistent network objects + * from 2 to 1 should we connect to another network. + */ + if (was_disabled != 2) { + ssid->disabled = ssid != selected; + if (was_disabled != ssid->disabled) { + if (ssid->disabled) + ssid->disabled_for_connect = 1; + wpas_notify_network_enabled_changed(wpa_s, + ssid); + } + } ssid = ssid->next; } +} + + +static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s, + struct wpa_ssid *selected, const u8 *bssid, + int freq) +{ + struct wpa_bss *bss; + + wpa_s->wps_run++; + if (wpa_s->wps_run == 0) + wpa_s->wps_run++; + wpa_s->after_wps = 0; + wpa_s->known_wps_freq = 0; + if (freq) { + wpa_s->after_wps = 5; + wpa_s->wps_freq = freq; + } else if (bssid) { + bss = wpa_bss_get_bssid_latest(wpa_s, bssid); + if (bss && bss->freq > 0) { + wpa_s->known_wps_freq = 1; + wpa_s->wps_freq = bss->freq; + } + } + + wpas_wps_temp_disable(wpa_s, selected); + wpa_s->disconnected = 0; wpa_s->reassociate = 1; wpa_s->scan_runs = 0; + wpa_s->normal_scans = 0; wpa_s->wps_success = 0; wpa_s->blacklist_cleared = 0; + + wpa_supplicant_cancel_sched_scan(wpa_s); wpa_supplicant_req_scan(wpa_s, 0, 0); } -int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid) +int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid, + int p2p_group) { struct wpa_ssid *ssid; + +#ifdef CONFIG_AP + if (wpa_s->ap_iface) { + wpa_printf(MSG_DEBUG, + "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled"); + return -1; + } +#endif /* CONFIG_AP */ wpas_clear_wps(wpa_s); - ssid = wpas_wps_add_network(wpa_s, 0, bssid); + ssid = wpas_wps_add_network(wpa_s, 0, NULL, bssid); if (ssid == NULL) return -1; - wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0); + ssid->temporary = 1; + ssid->p2p_group = p2p_group; + /* + * When starting a regular WPS process (not P2P group formation) + * the registrar/final station can be either AP or PCP + * so use a "don't care" value for the pbss flag. + */ + if (!p2p_group) + ssid->pbss = 2; +#ifdef CONFIG_P2P + if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) { + ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1); + if (ssid->ssid) { + ssid->ssid_len = wpa_s->go_params->ssid_len; + os_memcpy(ssid->ssid, wpa_s->go_params->ssid, + ssid->ssid_len); + if (wpa_s->go_params->freq > 56160) { + /* P2P in 60 GHz uses PBSS */ + ssid->pbss = 1; + } + wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP " + "SSID", ssid->ssid, ssid->ssid_len); + } + } +#endif /* CONFIG_P2P */ + if (wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0) < 0) + return -1; + if (wpa_s->wps_fragment_size) + ssid->eap.fragment_size = wpa_s->wps_fragment_size; eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, wpa_s, NULL); - wpas_wps_reassoc(wpa_s, ssid); + wpas_wps_reassoc(wpa_s, ssid, bssid, 0); return 0; } -int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid, - const char *pin) +static int wpas_wps_start_dev_pw(struct wpa_supplicant *wpa_s, + const u8 *dev_addr, const u8 *bssid, + const char *pin, int p2p_group, u16 dev_pw_id, + const u8 *peer_pubkey_hash, + const u8 *ssid_val, size_t ssid_len, int freq) { struct wpa_ssid *ssid; - char val[128]; + char val[128 + 2 * WPS_OOB_PUBKEY_HASH_LEN]; unsigned int rpin = 0; + char hash[2 * WPS_OOB_PUBKEY_HASH_LEN + 10]; +#ifdef CONFIG_AP + if (wpa_s->ap_iface) { + wpa_printf(MSG_DEBUG, + "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled"); + return -1; + } +#endif /* CONFIG_AP */ wpas_clear_wps(wpa_s); - ssid = wpas_wps_add_network(wpa_s, 0, bssid); - if (ssid == NULL) + if (bssid && is_zero_ether_addr(bssid)) + bssid = NULL; + ssid = wpas_wps_add_network(wpa_s, 0, dev_addr, bssid); + if (ssid == NULL) { + wpa_printf(MSG_DEBUG, "WPS: Could not add network"); return -1; - if (pin) - os_snprintf(val, sizeof(val), "\"pin=%s\"", pin); - else { - rpin = wps_generate_pin(); - os_snprintf(val, sizeof(val), "\"pin=%08d\"", rpin); } - wpa_config_set(ssid, "phase1", val, 0); - eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, - wpa_s, NULL); - wpas_wps_reassoc(wpa_s, ssid); - return rpin; -} - - -#ifdef CONFIG_WPS_OOB -int wpas_wps_start_oob(struct wpa_supplicant *wpa_s, char *device_type, - char *path, char *method, char *name) + ssid->temporary = 1; + ssid->p2p_group = p2p_group; + /* + * When starting a regular WPS process (not P2P group formation) + * the registrar/final station can be either AP or PCP + * so use a "don't care" value for the pbss flag. + */ + if (!p2p_group) + ssid->pbss = 2; + if (ssid_val) { + ssid->ssid = os_malloc(ssid_len); + if (ssid->ssid) { + os_memcpy(ssid->ssid, ssid_val, ssid_len); + ssid->ssid_len = ssid_len; + } + } + if (peer_pubkey_hash) { + os_memcpy(hash, " pkhash=", 8); + wpa_snprintf_hex_uppercase(hash + 8, sizeof(hash) - 8, + peer_pubkey_hash, + WPS_OOB_PUBKEY_HASH_LEN); + } else { + hash[0] = '\0'; + } +#ifdef CONFIG_P2P + if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) { + os_free(ssid->ssid); + ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1); + if (ssid->ssid) { + ssid->ssid_len = wpa_s->go_params->ssid_len; + os_memcpy(ssid->ssid, wpa_s->go_params->ssid, + ssid->ssid_len); + if (wpa_s->go_params->freq > 56160) { + /* P2P in 60 GHz uses PBSS */ + ssid->pbss = 1; + } + wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP " + "SSID", ssid->ssid, ssid->ssid_len); + } + } +#endif /* CONFIG_P2P */ + if (pin) + os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u%s\"", + pin, dev_pw_id, hash); + else if (pin == NULL && dev_pw_id == DEV_PW_NFC_CONNECTION_HANDOVER) { + os_snprintf(val, sizeof(val), "\"dev_pw_id=%u%s\"", + dev_pw_id, hash); + } else { + if (wps_generate_pin(&rpin) < 0) { + wpa_printf(MSG_DEBUG, "WPS: Could not generate PIN"); + return -1; + } + os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u%s\"", + rpin, dev_pw_id, hash); + } + if (wpa_config_set(ssid, "phase1", val, 0) < 0) { + wpa_printf(MSG_DEBUG, "WPS: Failed to set phase1 '%s'", val); + return -1; + } + if (wpa_s->wps_fragment_size) + ssid->eap.fragment_size = wpa_s->wps_fragment_size; + eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, + wpa_s, NULL); + wpa_s->wps_ap_iter = 1; + wpas_wps_reassoc(wpa_s, ssid, bssid, freq); + return rpin; +} + + +int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid, + const char *pin, int p2p_group, u16 dev_pw_id) { - struct wps_context *wps = wpa_s->wps; - struct oob_device_data *oob_dev; + os_get_reltime(&wpa_s->wps_pin_start_time); + return wpas_wps_start_dev_pw(wpa_s, NULL, bssid, pin, p2p_group, + dev_pw_id, NULL, NULL, 0, 0); +} - oob_dev = wps_get_oob_device(device_type); - if (oob_dev == NULL) - return -1; - oob_dev->device_path = path; - oob_dev->device_name = name; - wps->oob_conf.oob_method = wps_get_oob_method(method); - if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E) { - /* - * Use pre-configured DH keys in order to be able to write the - * key hash into the OOB file. - */ - wpabuf_free(wps->dh_pubkey); - wpabuf_free(wps->dh_privkey); - wps->dh_privkey = NULL; - wps->dh_pubkey = NULL; - dh5_free(wps->dh_ctx); - wps->dh_ctx = dh5_init(&wps->dh_privkey, &wps->dh_pubkey); - wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192); - if (wps->dh_ctx == NULL || wps->dh_pubkey == NULL) { - wpa_printf(MSG_ERROR, "WPS: Failed to initialize " - "Diffie-Hellman handshake"); - return -1; - } +void wpas_wps_pbc_overlap(struct wpa_supplicant *wpa_s) +{ + union wps_event_data data; + + os_memset(&data, 0, sizeof(data)); + data.fail.config_error = WPS_CFG_MULTIPLE_PBC_DETECTED; + data.fail.error_indication = WPS_EI_NO_ERROR; + /* + * Call wpas_notify_wps_event_fail() directly instead of through + * wpa_supplicant_wps_event() which would end up registering unnecessary + * timeouts (those are only for the case where the failure happens + * during an EAP-WSC exchange). + */ + wpas_notify_wps_event_fail(wpa_s, &data.fail); +} + +/* Cancel the wps pbc/pin requests */ +int wpas_wps_cancel(struct wpa_supplicant *wpa_s) +{ +#ifdef CONFIG_AP + if (wpa_s->ap_iface) { + wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode"); + return wpa_supplicant_ap_wps_cancel(wpa_s); } +#endif /* CONFIG_AP */ - if (wps->oob_conf.oob_method == OOB_METHOD_CRED) + if (wpa_s->wpa_state == WPA_SCANNING || + wpa_s->wpa_state == WPA_DISCONNECTED) { + wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan"); + wpa_supplicant_cancel_scan(wpa_s); wpas_clear_wps(wpa_s); + } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) { + wpa_printf(MSG_DEBUG, "WPS: Cancel operation - " + "deauthenticate"); + wpa_s->own_disconnect_req = 1; + wpa_supplicant_deauthenticate(wpa_s, + WLAN_REASON_DEAUTH_LEAVING); + wpas_clear_wps(wpa_s); + } else { + wpas_wps_reenable_networks(wpa_s); + wpas_wps_clear_ap_info(wpa_s); + if (eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL) > + 0) + wpas_clear_wps(wpa_s); + } - if (wps_process_oob(wps, oob_dev, 0) < 0) - return -1; - - if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E || - wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) && - wpas_wps_start_pin(wpa_s, NULL, - wpabuf_head(wps->oob_conf.dev_password)) < 0) - return -1; + wpa_s->after_wps = 0; return 0; } -#endif /* CONFIG_WPS_OOB */ int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid, @@ -747,16 +1340,24 @@ int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid, char *pos, *end; int res; +#ifdef CONFIG_AP + if (wpa_s->ap_iface) { + wpa_printf(MSG_DEBUG, + "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled"); + return -1; + } +#endif /* CONFIG_AP */ if (!pin) return -1; wpas_clear_wps(wpa_s); - ssid = wpas_wps_add_network(wpa_s, 1, bssid); + ssid = wpas_wps_add_network(wpa_s, 1, NULL, bssid); if (ssid == NULL) return -1; + ssid->temporary = 1; pos = val; end = pos + sizeof(val); res = os_snprintf(pos, end - pos, "\"pin=%s", pin); - if (res < 0 || res >= end - pos) + if (os_snprintf_error(end - pos, res)) return -1; pos += res; if (settings) { @@ -764,26 +1365,38 @@ int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid, "new_encr=%s new_key=%s", settings->ssid_hex, settings->auth, settings->encr, settings->key_hex); - if (res < 0 || res >= end - pos) + if (os_snprintf_error(end - pos, res)) return -1; pos += res; } res = os_snprintf(pos, end - pos, "\""); - if (res < 0 || res >= end - pos) + if (os_snprintf_error(end - pos, res)) return -1; - wpa_config_set(ssid, "phase1", val, 0); + if (wpa_config_set(ssid, "phase1", val, 0) < 0) + return -1; + if (wpa_s->wps_fragment_size) + ssid->eap.fragment_size = wpa_s->wps_fragment_size; eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, wpa_s, NULL); - wpas_wps_reassoc(wpa_s, ssid); + wpas_wps_reassoc(wpa_s, ssid, bssid, 0); return 0; } -static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk, +static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, + const u8 *p2p_dev_addr, const u8 *psk, size_t psk_len) { - wpa_printf(MSG_DEBUG, "WPS: Received new WPA/WPA2-PSK from WPS for " - "STA " MACSTR, MAC2STR(mac_addr)); + if (is_zero_ether_addr(p2p_dev_addr)) { + wpa_printf(MSG_DEBUG, + "Received new WPA/WPA2-PSK from WPS for STA " MACSTR, + MAC2STR(mac_addr)); + } else { + wpa_printf(MSG_DEBUG, + "Received new WPA/WPA2-PSK from WPS for STA " MACSTR + " P2P Device Addr " MACSTR, + MAC2STR(mac_addr), MAC2STR(p2p_dev_addr)); + } wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len); /* TODO */ @@ -797,16 +1410,18 @@ static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e, { char uuid[40], txt[400]; int len; + char devtype[WPS_DEV_TYPE_BUFSIZE]; if (uuid_bin2str(uuid_e, uuid, sizeof(uuid))) return; wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid); len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR - " [%s|%s|%s|%s|%s|%d-%08X-%d]", + " [%s|%s|%s|%s|%s|%s]", uuid, MAC2STR(dev->mac_addr), dev->device_name, dev->manufacturer, dev->model_name, dev->model_number, dev->serial_number, - dev->categ, dev->oui, dev->sub_categ); - if (len > 0 && len < (int) sizeof(txt)) + wps_dev_type_bin2str(dev->pri_dev_type, devtype, + sizeof(devtype))); + if (!os_snprintf_error(sizeof(txt), len)) wpa_printf(MSG_INFO, "%s", txt); } @@ -819,16 +1434,90 @@ static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id, if (wpa_s->wps_er == NULL) return; + wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d " + "dev_password_id=%u sel_reg_config_methods=0x%x", + sel_reg, dev_passwd_id, sel_reg_config_methods); wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id, sel_reg_config_methods); #endif /* CONFIG_WPS_ER */ } +static u16 wps_fix_config_methods(u16 config_methods) +{ + if ((config_methods & + (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY | + WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) { + wpa_printf(MSG_INFO, "WPS: Converting display to " + "virtual_display for WPS 2.0 compliance"); + config_methods |= WPS_CONFIG_VIRT_DISPLAY; + } + if ((config_methods & + (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON | + WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) { + wpa_printf(MSG_INFO, "WPS: Converting push_button to " + "virtual_push_button for WPS 2.0 compliance"); + config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON; + } + + return config_methods; +} + + +static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s, + struct wps_context *wps) +{ + char buf[50]; + const char *src; + + if (is_nil_uuid(wpa_s->conf->uuid)) { + struct wpa_supplicant *first; + first = wpa_s->global->ifaces; + while (first && first->next) + first = first->next; + if (first && first != wpa_s) { + if (wps != wpa_s->global->ifaces->wps) + os_memcpy(wps->uuid, + wpa_s->global->ifaces->wps->uuid, + WPS_UUID_LEN); + src = "from the first interface"; + } else { + uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid); + src = "based on MAC address"; + } + } else { + os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN); + src = "based on configuration"; + } + + uuid_bin2str(wps->uuid, buf, sizeof(buf)); + wpa_dbg(wpa_s, MSG_DEBUG, "WPS: UUID %s: %s", src, buf); +} + + +static void wpas_wps_set_vendor_ext_m1(struct wpa_supplicant *wpa_s, + struct wps_context *wps) +{ + wpabuf_free(wps->dev.vendor_ext_m1); + wps->dev.vendor_ext_m1 = NULL; + + if (wpa_s->conf->wps_vendor_ext_m1) { + wps->dev.vendor_ext_m1 = + wpabuf_dup(wpa_s->conf->wps_vendor_ext_m1); + if (!wps->dev.vendor_ext_m1) { + wpa_printf(MSG_ERROR, "WPS: Cannot " + "allocate memory for vendor_ext_m1"); + } + } +} + + int wpas_wps_init(struct wpa_supplicant *wpa_s) { struct wps_context *wps; struct wps_registrar_config rcfg; + struct hostapd_hw_modes *modes; + u16 m; wps = os_zalloc(sizeof(*wps)); if (wps == NULL) @@ -836,6 +1525,7 @@ int wpas_wps_init(struct wpa_supplicant *wpa_s) wps->cred_cb = wpa_supplicant_wps_cred; wps->event_cb = wpa_supplicant_wps_event; + wps->rf_band_cb = wpa_supplicant_wps_rf_band; wps->cb_ctx = wpa_s; wps->dev.device_name = wpa_s->conf->device_name; @@ -843,42 +1533,48 @@ int wpas_wps_init(struct wpa_supplicant *wpa_s) wps->dev.model_name = wpa_s->conf->model_name; wps->dev.model_number = wpa_s->conf->model_number; wps->dev.serial_number = wpa_s->conf->serial_number; - if (wpa_s->conf->device_type) { - char *pos; - u8 oui[4]; - /* -- */ - wps->dev.categ = atoi(wpa_s->conf->device_type); - pos = os_strchr(wpa_s->conf->device_type, '-'); - if (pos == NULL) { - wpa_printf(MSG_ERROR, "WPS: Invalid device_type"); - os_free(wps); - return -1; - } - pos++; - if (hexstr2bin(pos, oui, 4)) { - wpa_printf(MSG_ERROR, "WPS: Invalid device_type OUI"); - os_free(wps); - return -1; - } - wps->dev.oui = WPA_GET_BE32(oui); - pos = os_strchr(pos, '-'); - if (pos == NULL) { - wpa_printf(MSG_ERROR, "WPS: Invalid device_type"); - os_free(wps); - return -1; - } - pos++; - wps->dev.sub_categ = atoi(pos); + wps->config_methods = + wps_config_methods_str2bin(wpa_s->conf->config_methods); + if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) == + (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) { + wpa_printf(MSG_ERROR, "WPS: Both Label and Display config " + "methods are not allowed at the same time"); + os_free(wps); + return -1; } + wps->config_methods = wps_fix_config_methods(wps->config_methods); + wps->dev.config_methods = wps->config_methods; + os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type, + WPS_DEV_TYPE_LEN); + + wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types; + os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type, + WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types); + + wpas_wps_set_vendor_ext_m1(wpa_s, wps); + wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version); - wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ; /* TODO: config */ + modes = wpa_s->hw.modes; + if (modes) { + for (m = 0; m < wpa_s->hw.num_modes; m++) { + if (modes[m].mode == HOSTAPD_MODE_IEEE80211B || + modes[m].mode == HOSTAPD_MODE_IEEE80211G) + wps->dev.rf_bands |= WPS_RF_24GHZ; + else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A) + wps->dev.rf_bands |= WPS_RF_50GHZ; + else if (modes[m].mode == HOSTAPD_MODE_IEEE80211AD) + wps->dev.rf_bands |= WPS_RF_60GHZ; + } + } + if (wps->dev.rf_bands == 0) { + /* + * Default to claiming support for both bands if the driver + * does not provide support for fetching supported bands. + */ + wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ; + } os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN); - if (is_nil_uuid(wpa_s->conf->uuid)) { - uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid); - wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC address", - wps->uuid, WPS_UUID_LEN); - } else - os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN); + wpas_wps_set_uuid(wpa_s, wps); wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK; wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP; @@ -902,23 +1598,45 @@ int wpas_wps_init(struct wpa_supplicant *wpa_s) } +#ifdef CONFIG_WPS_ER +static void wpas_wps_nfc_clear(struct wps_context *wps) +{ + wps->ap_nfc_dev_pw_id = 0; + wpabuf_free(wps->ap_nfc_dh_pubkey); + wps->ap_nfc_dh_pubkey = NULL; + wpabuf_free(wps->ap_nfc_dh_privkey); + wps->ap_nfc_dh_privkey = NULL; + wpabuf_free(wps->ap_nfc_dev_pw); + wps->ap_nfc_dev_pw = NULL; +} +#endif /* CONFIG_WPS_ER */ + + void wpas_wps_deinit(struct wpa_supplicant *wpa_s) { + wpas_wps_assoc_with_cred_cancel(wpa_s); eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL); + eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL); + eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL); + wpas_wps_clear_ap_info(wpa_s); + +#ifdef CONFIG_P2P + eloop_cancel_timeout(wpas_p2p_pbc_overlap_cb, wpa_s, NULL); +#endif /* CONFIG_P2P */ if (wpa_s->wps == NULL) return; #ifdef CONFIG_WPS_ER - wps_er_deinit(wpa_s->wps_er); + wps_er_deinit(wpa_s->wps_er, NULL, NULL); wpa_s->wps_er = NULL; + wpas_wps_nfc_clear(wpa_s->wps); #endif /* CONFIG_WPS_ER */ wps_registrar_deinit(wpa_s->wps->registrar); wpabuf_free(wpa_s->wps->dh_pubkey); wpabuf_free(wpa_s->wps->dh_privkey); - wpabuf_free(wpa_s->wps->oob_conf.pubkey_hash); - wpabuf_free(wpa_s->wps->oob_conf.dev_password); + wpabuf_free(wpa_s->wps->dev.vendor_ext_m1); os_free(wpa_s->wps->network_key); os_free(wpa_s->wps); wpa_s->wps = NULL; @@ -926,14 +1644,14 @@ void wpas_wps_deinit(struct wpa_supplicant *wpa_s) int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s, - struct wpa_ssid *ssid, struct wpa_scan_res *bss) + struct wpa_ssid *ssid, struct wpa_bss *bss) { struct wpabuf *wps_ie; if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS)) return -1; - wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); + wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); if (eap_is_wps_pbc_enrollee(&ssid->eap)) { if (!wps_ie) { wpa_printf(MSG_DEBUG, " skip - non-WPS AP"); @@ -961,22 +1679,29 @@ int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s, } /* - * Start with WPS APs that advertise active PIN Registrar and - * allow any WPS AP after third scan since some APs do not set - * Selected Registrar attribute properly when using external - * Registrar. + * Start with WPS APs that advertise our address as an + * authorized MAC (v2.0) or active PIN Registrar (v1.0) and + * allow any WPS AP after couple of scans since some APs do not + * set Selected Registrar attribute properly when using + * external Registrar. */ - if (!wps_is_selected_pin_registrar(wps_ie)) { - if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) { - wpa_printf(MSG_DEBUG, " skip - WPS AP " - "without active PIN Registrar"); + if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) { + struct os_reltime age; + + os_reltime_age(&wpa_s->wps_pin_start_time, &age); + + if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG || + age.sec < WPS_PIN_TIME_IGNORE_SEL_REG) { + wpa_printf(MSG_DEBUG, + " skip - WPS AP without active PIN Registrar (scan_runs=%d age=%d)", + wpa_s->scan_runs, (int) age.sec); wpabuf_free(wps_ie); return 0; } wpa_printf(MSG_DEBUG, " selected based on WPS IE"); } else { wpa_printf(MSG_DEBUG, " selected based on WPS IE " - "(Active PIN)"); + "(Authorized MAC or Active PIN)"); } wpabuf_free(wps_ie); return 1; @@ -994,21 +1719,21 @@ int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s, int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid, - struct wpa_scan_res *bss) + struct wpa_bss *bss) { struct wpabuf *wps_ie = NULL; int ret = 0; if (eap_is_wps_pbc_enrollee(&ssid->eap)) { - wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); + wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) { /* allow wildcard SSID for WPS PBC */ ret = 1; } } else if (eap_is_wps_pin_enrollee(&ssid->eap)) { - wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); + wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); if (wps_ie && - (wps_is_selected_pin_registrar(wps_ie) || + (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) || wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) { /* allow wildcard SSID for WPS PIN */ ret = 1; @@ -1021,6 +1746,28 @@ int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s, ret = 1; } +#ifdef CONFIG_WPS_STRICT + if (wps_ie) { + if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len > + 0, bss->bssid) < 0) + ret = 0; + if (bss->beacon_ie_len) { + struct wpabuf *bcn_wps; + bcn_wps = wpa_bss_get_vendor_ie_multi_beacon( + bss, WPS_IE_VENDOR_TYPE); + if (bcn_wps == NULL) { + wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE " + "missing from AP Beacon"); + ret = 0; + } else { + if (wps_validate_beacon(wps_ie) < 0) + ret = 0; + wpabuf_free(bcn_wps); + } + } + } +#endif /* CONFIG_WPS_STRICT */ + wpabuf_free(wps_ie); return ret; @@ -1028,47 +1775,54 @@ int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s, int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s, - struct wpa_scan_res *selected, - struct wpa_ssid *ssid) + struct wpa_bss *selected, struct wpa_ssid *ssid) { - const u8 *sel_uuid, *uuid; - size_t i; + const u8 *sel_uuid; struct wpabuf *wps_ie; int ret = 0; + size_t i; if (!eap_is_wps_pbc_enrollee(&ssid->eap)) return 0; + wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is " + "present in scan results; selected BSSID " MACSTR, + MAC2STR(selected->bssid)); + /* Make sure that only one AP is in active PBC mode */ - wps_ie = wpa_scan_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE); - if (wps_ie) + wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE); + if (wps_ie) { sel_uuid = wps_get_uuid_e(wps_ie); - else + wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS", + sel_uuid, UUID_LEN); + } else { + wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include " + "WPS IE?!"); sel_uuid = NULL; + } - for (i = 0; i < wpa_s->scan_res->num; i++) { - struct wpa_scan_res *bss = wpa_s->scan_res->res[i]; - struct wpabuf *ie; - if (bss == selected) - continue; - ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); - if (!ie) - continue; - if (!wps_is_selected_pbc_registrar(ie)) { - wpabuf_free(ie); + for (i = 0; i < wpa_s->num_wps_ap; i++) { + struct wps_ap_info *ap = &wpa_s->wps_ap[i]; + + if (!ap->pbc_active || + os_memcmp(selected->bssid, ap->bssid, ETH_ALEN) == 0) continue; - } - uuid = wps_get_uuid_e(ie); - if (sel_uuid == NULL || uuid == NULL || - os_memcmp(sel_uuid, uuid, 16) != 0) { + + wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: " + MACSTR, MAC2STR(ap->bssid)); + wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS", + ap->uuid, UUID_LEN); + if (sel_uuid == NULL || + os_memcmp(sel_uuid, ap->uuid, UUID_LEN) != 0) { ret = 1; /* PBC overlap */ - wpabuf_free(ie); + wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: " + MACSTR " and " MACSTR, + MAC2STR(selected->bssid), + MAC2STR(ap->bssid)); break; } /* TODO: verify that this is reasonable dual-band situation */ - - wpabuf_free(ie); } wpabuf_free(wps_ie); @@ -1079,26 +1833,36 @@ int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s, void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s) { - size_t i; + struct wpa_bss *bss; + unsigned int pbc = 0, auth = 0, pin = 0, wps = 0; if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED) return; - for (i = 0; i < wpa_s->scan_res->num; i++) { - struct wpa_scan_res *bss = wpa_s->scan_res->res[i]; + dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { struct wpabuf *ie; - ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); + ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); if (!ie) continue; if (wps_is_selected_pbc_registrar(ie)) - wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC); + pbc++; + else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0)) + auth++; else if (wps_is_selected_pin_registrar(ie)) - wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN); + pin++; else - wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE); + wps++; wpabuf_free(ie); - break; } + + if (pbc) + wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC); + else if (auth) + wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH); + else if (pin) + wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN); + else if (wps) + wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE); } @@ -1131,14 +1895,14 @@ int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf, } -int wpas_wps_er_start(struct wpa_supplicant *wpa_s) +int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter) { #ifdef CONFIG_WPS_ER if (wpa_s->wps_er) { wps_er_refresh(wpa_s->wps_er); return 0; } - wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname); + wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter); if (wpa_s->wps_er == NULL) return -1; return 0; @@ -1148,50 +1912,1023 @@ int wpas_wps_er_start(struct wpa_supplicant *wpa_s) } -int wpas_wps_er_stop(struct wpa_supplicant *wpa_s) +void wpas_wps_er_stop(struct wpa_supplicant *wpa_s) { #ifdef CONFIG_WPS_ER - wps_er_deinit(wpa_s->wps_er); + wps_er_deinit(wpa_s->wps_er, NULL, NULL); wpa_s->wps_er = NULL; #endif /* CONFIG_WPS_ER */ - return 0; } #ifdef CONFIG_WPS_ER -int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const char *uuid, - const char *pin) +int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr, + const char *uuid, const char *pin) { u8 u[UUID_LEN]; - int any = 0; - - if (os_strcmp(uuid, "any") == 0) - any = 1; - else if (uuid_str2bin(uuid, u)) + const u8 *use_uuid = NULL; + u8 addr_buf[ETH_ALEN]; + + if (os_strcmp(uuid, "any") == 0) { + } else if (uuid_str2bin(uuid, u) == 0) { + use_uuid = u; + } else if (hwaddr_aton(uuid, addr_buf) == 0) { + use_uuid = wps_er_get_sta_uuid(wpa_s->wps_er, addr_buf); + if (use_uuid == NULL) + return -1; + } else return -1; - return wps_registrar_add_pin(wpa_s->wps->registrar, any ? NULL : u, + return wps_registrar_add_pin(wpa_s->wps->registrar, addr, + use_uuid, (const u8 *) pin, os_strlen(pin), 300); } int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid) { - u8 u[UUID_LEN]; + u8 u[UUID_LEN], *use_uuid = NULL; + u8 addr[ETH_ALEN], *use_addr = NULL; - if (uuid_str2bin(uuid, u)) + if (uuid_str2bin(uuid, u) == 0) + use_uuid = u; + else if (hwaddr_aton(uuid, addr) == 0) + use_addr = addr; + else return -1; - return wps_er_pbc(wpa_s->wps_er, u); + return wps_er_pbc(wpa_s->wps_er, use_uuid, use_addr); } int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid, const char *pin) { - u8 u[UUID_LEN]; + u8 u[UUID_LEN], *use_uuid = NULL; + u8 addr[ETH_ALEN], *use_addr = NULL; - if (uuid_str2bin(uuid, u)) + if (uuid_str2bin(uuid, u) == 0) + use_uuid = u; + else if (hwaddr_aton(uuid, addr) == 0) + use_addr = addr; + else return -1; - return wps_er_learn(wpa_s->wps_er, u, (const u8 *) pin, + + return wps_er_learn(wpa_s->wps_er, use_uuid, use_addr, (const u8 *) pin, os_strlen(pin)); } + + +static int wpas_wps_network_to_cred(struct wpa_ssid *ssid, + struct wps_credential *cred) +{ + os_memset(cred, 0, sizeof(*cred)); + if (ssid->ssid_len > SSID_MAX_LEN) + return -1; + os_memcpy(cred->ssid, ssid->ssid, ssid->ssid_len); + cred->ssid_len = ssid->ssid_len; + if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) { + cred->auth_type = (ssid->proto & WPA_PROTO_RSN) ? + WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK; + if (ssid->pairwise_cipher & WPA_CIPHER_CCMP) + cred->encr_type = WPS_ENCR_AES; + else + cred->encr_type = WPS_ENCR_TKIP; + if (ssid->passphrase) { + cred->key_len = os_strlen(ssid->passphrase); + if (cred->key_len >= 64) + return -1; + os_memcpy(cred->key, ssid->passphrase, cred->key_len); + } else if (ssid->psk_set) { + cred->key_len = 32; + os_memcpy(cred->key, ssid->psk, 32); + } else + return -1; + } else { + cred->auth_type = WPS_AUTH_OPEN; + cred->encr_type = WPS_ENCR_NONE; + } + + return 0; +} + + +int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid, + int id) +{ + u8 u[UUID_LEN], *use_uuid = NULL; + u8 addr[ETH_ALEN], *use_addr = NULL; + struct wpa_ssid *ssid; + struct wps_credential cred; + int ret; + + if (uuid_str2bin(uuid, u) == 0) + use_uuid = u; + else if (hwaddr_aton(uuid, addr) == 0) + use_addr = addr; + else + return -1; + ssid = wpa_config_get_network(wpa_s->conf, id); + if (ssid == NULL || ssid->ssid == NULL) + return -1; + + if (wpas_wps_network_to_cred(ssid, &cred) < 0) + return -1; + ret = wps_er_set_config(wpa_s->wps_er, use_uuid, use_addr, &cred); + os_memset(&cred, 0, sizeof(cred)); + return ret; +} + + +int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid, + const char *pin, struct wps_new_ap_settings *settings) +{ + u8 u[UUID_LEN], *use_uuid = NULL; + u8 addr[ETH_ALEN], *use_addr = NULL; + struct wps_credential cred; + size_t len; + + if (uuid_str2bin(uuid, u) == 0) + use_uuid = u; + else if (hwaddr_aton(uuid, addr) == 0) + use_addr = addr; + else + return -1; + if (settings->ssid_hex == NULL || settings->auth == NULL || + settings->encr == NULL || settings->key_hex == NULL) + return -1; + + os_memset(&cred, 0, sizeof(cred)); + len = os_strlen(settings->ssid_hex); + if ((len & 1) || len > 2 * sizeof(cred.ssid) || + hexstr2bin(settings->ssid_hex, cred.ssid, len / 2)) + return -1; + cred.ssid_len = len / 2; + + len = os_strlen(settings->key_hex); + if ((len & 1) || len > 2 * sizeof(cred.key) || + hexstr2bin(settings->key_hex, cred.key, len / 2)) + return -1; + cred.key_len = len / 2; + + if (os_strcmp(settings->auth, "OPEN") == 0) + cred.auth_type = WPS_AUTH_OPEN; + else if (os_strcmp(settings->auth, "WPAPSK") == 0) + cred.auth_type = WPS_AUTH_WPAPSK; + else if (os_strcmp(settings->auth, "WPA2PSK") == 0) + cred.auth_type = WPS_AUTH_WPA2PSK; + else + return -1; + + if (os_strcmp(settings->encr, "NONE") == 0) + cred.encr_type = WPS_ENCR_NONE; +#ifdef CONFIG_TESTING_OPTIONS + else if (os_strcmp(settings->encr, "WEP") == 0) + cred.encr_type = WPS_ENCR_WEP; +#endif /* CONFIG_TESTING_OPTIONS */ + else if (os_strcmp(settings->encr, "TKIP") == 0) + cred.encr_type = WPS_ENCR_TKIP; + else if (os_strcmp(settings->encr, "CCMP") == 0) + cred.encr_type = WPS_ENCR_AES; + else + return -1; + + return wps_er_config(wpa_s->wps_er, use_uuid, use_addr, + (const u8 *) pin, os_strlen(pin), &cred); +} + + +#ifdef CONFIG_WPS_NFC +struct wpabuf * wpas_wps_er_nfc_config_token(struct wpa_supplicant *wpa_s, + int ndef, const char *uuid) +{ + struct wpabuf *ret; + u8 u[UUID_LEN], *use_uuid = NULL; + u8 addr[ETH_ALEN], *use_addr = NULL; + + if (!wpa_s->wps_er) + return NULL; + + if (uuid_str2bin(uuid, u) == 0) + use_uuid = u; + else if (hwaddr_aton(uuid, addr) == 0) + use_addr = addr; + else + return NULL; + + ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr); + if (ndef && ret) { + struct wpabuf *tmp; + tmp = ndef_build_wifi(ret); + wpabuf_free(ret); + if (tmp == NULL) + return NULL; + ret = tmp; + } + + return ret; +} +#endif /* CONFIG_WPS_NFC */ + + +static int callbacks_pending = 0; + +static void wpas_wps_terminate_cb(void *ctx) +{ + wpa_printf(MSG_DEBUG, "WPS ER: Terminated"); + if (--callbacks_pending <= 0) + eloop_terminate(); +} +#endif /* CONFIG_WPS_ER */ + + +int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s) +{ +#ifdef CONFIG_WPS_ER + if (wpa_s->wps_er) { + callbacks_pending++; + wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s); + wpa_s->wps_er = NULL; + return 1; + } +#endif /* CONFIG_WPS_ER */ + return 0; +} + + +void wpas_wps_update_config(struct wpa_supplicant *wpa_s) +{ + struct wps_context *wps = wpa_s->wps; + + if (wps == NULL) + return; + + if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) { + wps->config_methods = wps_config_methods_str2bin( + wpa_s->conf->config_methods); + if ((wps->config_methods & + (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) == + (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) { + wpa_printf(MSG_ERROR, "WPS: Both Label and Display " + "config methods are not allowed at the " + "same time"); + wps->config_methods &= ~WPS_CONFIG_LABEL; + } + } + wps->config_methods = wps_fix_config_methods(wps->config_methods); + wps->dev.config_methods = wps->config_methods; + + if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE) + os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type, + WPS_DEV_TYPE_LEN); + + if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) { + wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types; + os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type, + wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN); + } + + if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) + wpas_wps_set_vendor_ext_m1(wpa_s, wps); + + if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION) + wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version); + + if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID) + wpas_wps_set_uuid(wpa_s, wps); + + if (wpa_s->conf->changed_parameters & + (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) { + /* Update pointers to make sure they refer current values */ + wps->dev.device_name = wpa_s->conf->device_name; + wps->dev.manufacturer = wpa_s->conf->manufacturer; + wps->dev.model_name = wpa_s->conf->model_name; + wps->dev.model_number = wpa_s->conf->model_number; + wps->dev.serial_number = wpa_s->conf->serial_number; + } +} + + +#ifdef CONFIG_WPS_NFC + +#ifdef CONFIG_WPS_ER +static struct wpabuf * +wpas_wps_network_config_token(struct wpa_supplicant *wpa_s, int ndef, + struct wpa_ssid *ssid) +{ + struct wpabuf *ret; + struct wps_credential cred; + + if (wpas_wps_network_to_cred(ssid, &cred) < 0) + return NULL; + + ret = wps_er_config_token_from_cred(wpa_s->wps, &cred); + + if (ndef && ret) { + struct wpabuf *tmp; + tmp = ndef_build_wifi(ret); + wpabuf_free(ret); + if (tmp == NULL) + return NULL; + ret = tmp; + } + + return ret; +} +#endif /* CONFIG_WPS_ER */ + + +struct wpabuf * wpas_wps_nfc_config_token(struct wpa_supplicant *wpa_s, + int ndef, const char *id_str) +{ +#ifdef CONFIG_WPS_ER + if (id_str) { + int id; + char *end = NULL; + struct wpa_ssid *ssid; + + id = strtol(id_str, &end, 10); + if (end && *end) + return NULL; + + ssid = wpa_config_get_network(wpa_s->conf, id); + if (ssid == NULL) + return NULL; + return wpas_wps_network_config_token(wpa_s, ndef, ssid); + } +#endif /* CONFIG_WPS_ER */ +#ifdef CONFIG_AP + if (wpa_s->ap_iface) + return wpas_ap_wps_nfc_config_token(wpa_s, ndef); +#endif /* CONFIG_AP */ + return NULL; +} + + +struct wpabuf * wpas_wps_nfc_token(struct wpa_supplicant *wpa_s, int ndef) +{ + if (wpa_s->conf->wps_nfc_pw_from_config) { + return wps_nfc_token_build(ndef, + wpa_s->conf->wps_nfc_dev_pw_id, + wpa_s->conf->wps_nfc_dh_pubkey, + wpa_s->conf->wps_nfc_dev_pw); + } + + return wps_nfc_token_gen(ndef, &wpa_s->conf->wps_nfc_dev_pw_id, + &wpa_s->conf->wps_nfc_dh_pubkey, + &wpa_s->conf->wps_nfc_dh_privkey, + &wpa_s->conf->wps_nfc_dev_pw); +} + + +int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *go_dev_addr, + const u8 *bssid, + const struct wpabuf *dev_pw, u16 dev_pw_id, + int p2p_group, const u8 *peer_pubkey_hash, + const u8 *ssid, size_t ssid_len, int freq) +{ + struct wps_context *wps = wpa_s->wps; + char pw[32 * 2 + 1]; + + if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) { + dev_pw = wpa_s->conf->wps_nfc_dev_pw; + dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id; + } + + if (wpa_s->conf->wps_nfc_dh_pubkey == NULL || + wpa_s->conf->wps_nfc_dh_privkey == NULL) { + wpa_printf(MSG_DEBUG, "WPS: Missing DH params - " + "cannot start NFC-triggered connection"); + return -1; + } + + if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) { + wpa_printf(MSG_DEBUG, "WPS: Missing Device Password (id=%u) - " + "cannot start NFC-triggered connection", dev_pw_id); + return -1; + } + + dh5_free(wps->dh_ctx); + wpabuf_free(wps->dh_pubkey); + wpabuf_free(wps->dh_privkey); + wps->dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey); + wps->dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey); + if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) { + wps->dh_ctx = NULL; + wpabuf_free(wps->dh_pubkey); + wps->dh_pubkey = NULL; + wpabuf_free(wps->dh_privkey); + wps->dh_privkey = NULL; + wpa_printf(MSG_DEBUG, "WPS: Failed to get DH priv/pub key"); + return -1; + } + wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey); + if (wps->dh_ctx == NULL) { + wpabuf_free(wps->dh_pubkey); + wps->dh_pubkey = NULL; + wpabuf_free(wps->dh_privkey); + wps->dh_privkey = NULL; + wpa_printf(MSG_DEBUG, "WPS: Failed to initialize DH context"); + return -1; + } + + if (dev_pw) { + wpa_snprintf_hex_uppercase(pw, sizeof(pw), + wpabuf_head(dev_pw), + wpabuf_len(dev_pw)); + } + return wpas_wps_start_dev_pw(wpa_s, go_dev_addr, bssid, + dev_pw ? pw : NULL, + p2p_group, dev_pw_id, peer_pubkey_hash, + ssid, ssid_len, freq); +} + + +static int wpas_wps_use_cred(struct wpa_supplicant *wpa_s, + struct wps_parse_attr *attr) +{ + /* + * Disable existing networks temporarily to allow the newly learned + * credential to be preferred. Enable the temporarily disabled networks + * after 10 seconds. + */ + wpas_wps_temp_disable(wpa_s, NULL); + eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s, + NULL); + + if (wps_oob_use_cred(wpa_s->wps, attr) < 0) + return -1; + + if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) + return 0; + + if (attr->ap_channel) { + u16 chan = WPA_GET_BE16(attr->ap_channel); + int freq = 0; + + if (chan >= 1 && chan <= 13) + freq = 2407 + 5 * chan; + else if (chan == 14) + freq = 2484; + else if (chan >= 30) + freq = 5000 + 5 * chan; + + if (freq) { + wpa_printf(MSG_DEBUG, "WPS: Credential container indicated AP channel %u -> %u MHz", + chan, freq); + wpa_s->after_wps = 5; + wpa_s->wps_freq = freq; + } + } + + wpa_printf(MSG_DEBUG, "WPS: Request reconnection with new network " + "based on the received credential added"); + wpa_s->normal_scans = 0; + wpa_supplicant_reinit_autoscan(wpa_s); + wpa_s->disconnected = 0; + wpa_s->reassociate = 1; + + wpa_supplicant_cancel_sched_scan(wpa_s); + wpa_supplicant_req_scan(wpa_s, 0, 0); + + return 0; +} + + +#ifdef CONFIG_WPS_ER +static int wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s, + struct wps_parse_attr *attr) +{ + return wps_registrar_add_nfc_password_token( + wpa_s->wps->registrar, attr->oob_dev_password, + attr->oob_dev_password_len); +} +#endif /* CONFIG_WPS_ER */ + + +static int wpas_wps_nfc_tag_process(struct wpa_supplicant *wpa_s, + const struct wpabuf *wps) +{ + struct wps_parse_attr attr; + + wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps); + + if (wps_parse_msg(wps, &attr)) { + wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag"); + return -1; + } + + if (attr.num_cred) + return wpas_wps_use_cred(wpa_s, &attr); + +#ifdef CONFIG_WPS_ER + if (attr.oob_dev_password) + return wpas_wps_add_nfc_password_token(wpa_s, &attr); +#endif /* CONFIG_WPS_ER */ + + wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag"); + return -1; +} + + +int wpas_wps_nfc_tag_read(struct wpa_supplicant *wpa_s, + const struct wpabuf *data, int forced_freq) +{ + const struct wpabuf *wps = data; + struct wpabuf *tmp = NULL; + int ret; + + if (wpabuf_len(data) < 4) + return -1; + + if (*wpabuf_head_u8(data) != 0x10) { + /* Assume this contains full NDEF record */ + tmp = ndef_parse_wifi(data); + if (tmp == NULL) { +#ifdef CONFIG_P2P + tmp = ndef_parse_p2p(data); + if (tmp) { + ret = wpas_p2p_nfc_tag_process(wpa_s, tmp, + forced_freq); + wpabuf_free(tmp); + return ret; + } +#endif /* CONFIG_P2P */ + wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF"); + return -1; + } + wps = tmp; + } + + ret = wpas_wps_nfc_tag_process(wpa_s, wps); + wpabuf_free(tmp); + return ret; +} + + +struct wpabuf * wpas_wps_nfc_handover_req(struct wpa_supplicant *wpa_s, + int ndef) +{ + struct wpabuf *ret; + + if (wpa_s->conf->wps_nfc_dh_pubkey == NULL && + wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey, + &wpa_s->conf->wps_nfc_dh_privkey) < 0) + return NULL; + + ret = wps_build_nfc_handover_req(wpa_s->wps, + wpa_s->conf->wps_nfc_dh_pubkey); + + if (ndef && ret) { + struct wpabuf *tmp; + tmp = ndef_build_wifi(ret); + wpabuf_free(ret); + if (tmp == NULL) + return NULL; + ret = tmp; + } + + return ret; +} + + +#ifdef CONFIG_WPS_NFC + +static struct wpabuf * +wpas_wps_er_nfc_handover_sel(struct wpa_supplicant *wpa_s, int ndef, + const char *uuid) +{ +#ifdef CONFIG_WPS_ER + struct wpabuf *ret; + u8 u[UUID_LEN], *use_uuid = NULL; + u8 addr[ETH_ALEN], *use_addr = NULL; + struct wps_context *wps = wpa_s->wps; + + if (wps == NULL) + return NULL; + + if (uuid == NULL) + return NULL; + if (uuid_str2bin(uuid, u) == 0) + use_uuid = u; + else if (hwaddr_aton(uuid, addr) == 0) + use_addr = addr; + else + return NULL; + + if (wpa_s->conf->wps_nfc_dh_pubkey == NULL) { + if (wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey, + &wpa_s->conf->wps_nfc_dh_privkey) < 0) + return NULL; + } + + wpas_wps_nfc_clear(wps); + wps->ap_nfc_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER; + wps->ap_nfc_dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey); + wps->ap_nfc_dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey); + if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey) { + wpas_wps_nfc_clear(wps); + return NULL; + } + + ret = wps_er_nfc_handover_sel(wpa_s->wps_er, wpa_s->wps, use_uuid, + use_addr, wpa_s->conf->wps_nfc_dh_pubkey); + if (ndef && ret) { + struct wpabuf *tmp; + tmp = ndef_build_wifi(ret); + wpabuf_free(ret); + if (tmp == NULL) + return NULL; + ret = tmp; + } + + return ret; +#else /* CONFIG_WPS_ER */ + return NULL; #endif /* CONFIG_WPS_ER */ +} +#endif /* CONFIG_WPS_NFC */ + + +struct wpabuf * wpas_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s, + int ndef, int cr, const char *uuid) +{ + struct wpabuf *ret; + if (!cr) + return NULL; + ret = wpas_ap_wps_nfc_handover_sel(wpa_s, ndef); + if (ret) + return ret; + return wpas_wps_er_nfc_handover_sel(wpa_s, ndef, uuid); +} + + +static int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s, + const struct wpabuf *data) +{ + struct wpabuf *wps; + int ret = -1; + u16 wsc_len; + const u8 *pos; + struct wpabuf msg; + struct wps_parse_attr attr; + u16 dev_pw_id; + const u8 *bssid = NULL; + int freq = 0; + + wps = ndef_parse_wifi(data); + if (wps == NULL) + return -1; + wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc " + "payload from NFC connection handover"); + wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps); + if (wpabuf_len(wps) < 2) { + wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Select " + "Message"); + goto out; + } + pos = wpabuf_head(wps); + wsc_len = WPA_GET_BE16(pos); + if (wsc_len > wpabuf_len(wps) - 2) { + wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) " + "in Wi-Fi Handover Select Message", wsc_len); + goto out; + } + pos += 2; + + wpa_hexdump(MSG_DEBUG, + "WPS: WSC attributes in Wi-Fi Handover Select Message", + pos, wsc_len); + if (wsc_len < wpabuf_len(wps) - 2) { + wpa_hexdump(MSG_DEBUG, + "WPS: Ignore extra data after WSC attributes", + pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len); + } + + wpabuf_set(&msg, pos, wsc_len); + ret = wps_parse_msg(&msg, &attr); + if (ret < 0) { + wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in " + "Wi-Fi Handover Select Message"); + goto out; + } + + if (attr.oob_dev_password == NULL || + attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) { + wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password " + "included in Wi-Fi Handover Select Message"); + ret = -1; + goto out; + } + + if (attr.ssid == NULL) { + wpa_printf(MSG_DEBUG, "WPS: No SSID included in Wi-Fi Handover " + "Select Message"); + ret = -1; + goto out; + } + + wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", attr.ssid, attr.ssid_len); + + if (attr.mac_addr) { + bssid = attr.mac_addr; + wpa_printf(MSG_DEBUG, "WPS: MAC Address (BSSID): " MACSTR, + MAC2STR(bssid)); + } + + if (attr.rf_bands) + wpa_printf(MSG_DEBUG, "WPS: RF Bands: %d", *attr.rf_bands); + + if (attr.ap_channel) { + u16 chan = WPA_GET_BE16(attr.ap_channel); + + wpa_printf(MSG_DEBUG, "WPS: AP Channel: %d", chan); + + if (chan >= 1 && chan <= 13 && + (attr.rf_bands == NULL || *attr.rf_bands & WPS_RF_24GHZ)) + freq = 2407 + 5 * chan; + else if (chan == 14 && + (attr.rf_bands == NULL || + *attr.rf_bands & WPS_RF_24GHZ)) + freq = 2484; + else if (chan >= 30 && + (attr.rf_bands == NULL || + *attr.rf_bands & WPS_RF_50GHZ)) + freq = 5000 + 5 * chan; + else if (chan >= 1 && chan <= 4 && + (attr.rf_bands == NULL || + *attr.rf_bands & WPS_RF_60GHZ)) + freq = 56160 + 2160 * chan; + + if (freq) { + wpa_printf(MSG_DEBUG, + "WPS: AP indicated channel %u -> %u MHz", + chan, freq); + } + } + + wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password", + attr.oob_dev_password, attr.oob_dev_password_len); + dev_pw_id = WPA_GET_BE16(attr.oob_dev_password + + WPS_OOB_PUBKEY_HASH_LEN); + if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) { + wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID " + "%u in Wi-Fi Handover Select Message", dev_pw_id); + ret = -1; + goto out; + } + wpa_hexdump(MSG_DEBUG, "WPS: AP Public Key hash", + attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN); + + ret = wpas_wps_start_nfc(wpa_s, NULL, bssid, NULL, dev_pw_id, 0, + attr.oob_dev_password, + attr.ssid, attr.ssid_len, freq); + +out: + wpabuf_free(wps); + return ret; +} + + +int wpas_wps_nfc_report_handover(struct wpa_supplicant *wpa_s, + const struct wpabuf *req, + const struct wpabuf *sel) +{ + wpa_printf(MSG_DEBUG, "NFC: WPS connection handover reported"); + wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in request", req); + wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in select", sel); + return wpas_wps_nfc_rx_handover_sel(wpa_s, sel); +} + + +int wpas_er_wps_nfc_report_handover(struct wpa_supplicant *wpa_s, + const struct wpabuf *req, + const struct wpabuf *sel) +{ + struct wpabuf *wps; + int ret = -1; + u16 wsc_len; + const u8 *pos; + struct wpabuf msg; + struct wps_parse_attr attr; + u16 dev_pw_id; + + /* + * Enrollee/station is always initiator of the NFC connection handover, + * so use the request message here to find Enrollee public key hash. + */ + wps = ndef_parse_wifi(req); + if (wps == NULL) + return -1; + wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc " + "payload from NFC connection handover"); + wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps); + if (wpabuf_len(wps) < 2) { + wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Request " + "Message"); + goto out; + } + pos = wpabuf_head(wps); + wsc_len = WPA_GET_BE16(pos); + if (wsc_len > wpabuf_len(wps) - 2) { + wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) " + "in rt Wi-Fi Handover Request Message", wsc_len); + goto out; + } + pos += 2; + + wpa_hexdump(MSG_DEBUG, + "WPS: WSC attributes in Wi-Fi Handover Request Message", + pos, wsc_len); + if (wsc_len < wpabuf_len(wps) - 2) { + wpa_hexdump(MSG_DEBUG, + "WPS: Ignore extra data after WSC attributes", + pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len); + } + + wpabuf_set(&msg, pos, wsc_len); + ret = wps_parse_msg(&msg, &attr); + if (ret < 0) { + wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in " + "Wi-Fi Handover Request Message"); + goto out; + } + + if (attr.oob_dev_password == NULL || + attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) { + wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password " + "included in Wi-Fi Handover Request Message"); + ret = -1; + goto out; + } + + if (attr.uuid_e == NULL) { + wpa_printf(MSG_DEBUG, "WPS: No UUID-E included in Wi-Fi " + "Handover Request Message"); + ret = -1; + goto out; + } + + wpa_hexdump(MSG_DEBUG, "WPS: UUID-E", attr.uuid_e, WPS_UUID_LEN); + + wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password", + attr.oob_dev_password, attr.oob_dev_password_len); + dev_pw_id = WPA_GET_BE16(attr.oob_dev_password + + WPS_OOB_PUBKEY_HASH_LEN); + if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) { + wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID " + "%u in Wi-Fi Handover Request Message", dev_pw_id); + ret = -1; + goto out; + } + wpa_hexdump(MSG_DEBUG, "WPS: Enrollee Public Key hash", + attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN); + + ret = wps_registrar_add_nfc_pw_token(wpa_s->wps->registrar, + attr.oob_dev_password, + DEV_PW_NFC_CONNECTION_HANDOVER, + NULL, 0, 1); + +out: + wpabuf_free(wps); + return ret; +} + +#endif /* CONFIG_WPS_NFC */ + + +static void wpas_wps_dump_ap_info(struct wpa_supplicant *wpa_s) +{ + size_t i; + struct os_reltime now; + + if (wpa_debug_level > MSG_DEBUG) + return; + + if (wpa_s->wps_ap == NULL) + return; + + os_get_reltime(&now); + + for (i = 0; i < wpa_s->num_wps_ap; i++) { + struct wps_ap_info *ap = &wpa_s->wps_ap[i]; + struct wpa_blacklist *e = wpa_blacklist_get(wpa_s, ap->bssid); + + wpa_printf(MSG_DEBUG, "WPS: AP[%d] " MACSTR " type=%d " + "tries=%d last_attempt=%d sec ago blacklist=%d", + (int) i, MAC2STR(ap->bssid), ap->type, ap->tries, + ap->last_attempt.sec > 0 ? + (int) now.sec - (int) ap->last_attempt.sec : -1, + e ? e->count : 0); + } +} + + +static struct wps_ap_info * wpas_wps_get_ap_info(struct wpa_supplicant *wpa_s, + const u8 *bssid) +{ + size_t i; + + if (wpa_s->wps_ap == NULL) + return NULL; + + for (i = 0; i < wpa_s->num_wps_ap; i++) { + struct wps_ap_info *ap = &wpa_s->wps_ap[i]; + if (os_memcmp(ap->bssid, bssid, ETH_ALEN) == 0) + return ap; + } + + return NULL; +} + + +static void wpas_wps_update_ap_info_bss(struct wpa_supplicant *wpa_s, + struct wpa_scan_res *res) +{ + struct wpabuf *wps; + enum wps_ap_info_type type; + struct wps_ap_info *ap; + int r, pbc_active; + const u8 *uuid; + + if (wpa_scan_get_vendor_ie(res, WPS_IE_VENDOR_TYPE) == NULL) + return; + + wps = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE); + if (wps == NULL) + return; + + r = wps_is_addr_authorized(wps, wpa_s->own_addr, 1); + if (r == 2) + type = WPS_AP_SEL_REG_OUR; + else if (r == 1) + type = WPS_AP_SEL_REG; + else + type = WPS_AP_NOT_SEL_REG; + + uuid = wps_get_uuid_e(wps); + pbc_active = wps_is_selected_pbc_registrar(wps); + + ap = wpas_wps_get_ap_info(wpa_s, res->bssid); + if (ap) { + if (ap->type != type) { + wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR + " changed type %d -> %d", + MAC2STR(res->bssid), ap->type, type); + ap->type = type; + if (type != WPS_AP_NOT_SEL_REG) + wpa_blacklist_del(wpa_s, ap->bssid); + } + ap->pbc_active = pbc_active; + if (uuid) + os_memcpy(ap->uuid, uuid, WPS_UUID_LEN); + goto out; + } + + ap = os_realloc_array(wpa_s->wps_ap, wpa_s->num_wps_ap + 1, + sizeof(struct wps_ap_info)); + if (ap == NULL) + goto out; + + wpa_s->wps_ap = ap; + ap = &wpa_s->wps_ap[wpa_s->num_wps_ap]; + wpa_s->num_wps_ap++; + + os_memset(ap, 0, sizeof(*ap)); + os_memcpy(ap->bssid, res->bssid, ETH_ALEN); + ap->type = type; + ap->pbc_active = pbc_active; + if (uuid) + os_memcpy(ap->uuid, uuid, WPS_UUID_LEN); + wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR " type %d added", + MAC2STR(ap->bssid), ap->type); + +out: + wpabuf_free(wps); +} + + +void wpas_wps_update_ap_info(struct wpa_supplicant *wpa_s, + struct wpa_scan_results *scan_res) +{ + size_t i; + + for (i = 0; i < scan_res->num; i++) + wpas_wps_update_ap_info_bss(wpa_s, scan_res->res[i]); + + wpas_wps_dump_ap_info(wpa_s); +} + + +void wpas_wps_notify_assoc(struct wpa_supplicant *wpa_s, const u8 *bssid) +{ + struct wps_ap_info *ap; + + wpa_s->after_wps = 0; + + if (!wpa_s->wps_ap_iter) + return; + ap = wpas_wps_get_ap_info(wpa_s, bssid); + if (ap == NULL) + return; + ap->tries++; + os_get_reltime(&ap->last_attempt); +}