| /* |
| * WPA Supplicant - Glue code to setup EAPOL and RSN modules |
| * Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi> |
| * |
| * This software may be distributed under the terms of the BSD license. |
| * See README for more details. |
| */ |
| |
| #include "includes.h" |
| |
| #include "common.h" |
| #include "eapol_supp/eapol_supp_sm.h" |
| #include "rsn_supp/wpa.h" |
| #include "eloop.h" |
| #include "config.h" |
| #include "l2_packet/l2_packet.h" |
| #include "common/wpa_common.h" |
| #include "wpa_supplicant_i.h" |
| #include "driver_i.h" |
| #include "rsn_supp/pmksa_cache.h" |
| #include "sme.h" |
| #include "common/ieee802_11_defs.h" |
| #include "common/wpa_ctrl.h" |
| #include "wpas_glue.h" |
| #include "wps_supplicant.h" |
| #include "bss.h" |
| #include "scan.h" |
| #include "notify.h" |
| #include "wpas_kay.h" |
| |
| |
| #ifndef CONFIG_NO_CONFIG_BLOBS |
| #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA) |
| static void wpa_supplicant_set_config_blob(void *ctx, |
| struct wpa_config_blob *blob) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| wpa_config_set_blob(wpa_s->conf, blob); |
| if (wpa_s->conf->update_config) { |
| int ret = wpa_config_write(wpa_s->confname, wpa_s->conf); |
| if (ret) { |
| wpa_printf(MSG_DEBUG, "Failed to update config after " |
| "blob set"); |
| } |
| } |
| } |
| |
| |
| static const struct wpa_config_blob * |
| wpa_supplicant_get_config_blob(void *ctx, const char *name) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| return wpa_config_get_blob(wpa_s->conf, name); |
| } |
| #endif /* defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA) */ |
| #endif /* CONFIG_NO_CONFIG_BLOBS */ |
| |
| |
| #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA) |
| static u8 * wpa_alloc_eapol(const struct wpa_supplicant *wpa_s, u8 type, |
| const void *data, u16 data_len, |
| size_t *msg_len, void **data_pos) |
| { |
| struct ieee802_1x_hdr *hdr; |
| |
| *msg_len = sizeof(*hdr) + data_len; |
| hdr = os_malloc(*msg_len); |
| if (hdr == NULL) |
| return NULL; |
| |
| hdr->version = wpa_s->conf->eapol_version; |
| hdr->type = type; |
| hdr->length = host_to_be16(data_len); |
| |
| if (data) |
| os_memcpy(hdr + 1, data, data_len); |
| else |
| os_memset(hdr + 1, 0, data_len); |
| |
| if (data_pos) |
| *data_pos = hdr + 1; |
| |
| return (u8 *) hdr; |
| } |
| |
| |
| /** |
| * wpa_ether_send - Send Ethernet frame |
| * @wpa_s: Pointer to wpa_supplicant data |
| * @dest: Destination MAC address |
| * @proto: Ethertype in host byte order |
| * @buf: Frame payload starting from IEEE 802.1X header |
| * @len: Frame payload length |
| * Returns: >=0 on success, <0 on failure |
| */ |
| static int wpa_ether_send(struct wpa_supplicant *wpa_s, const u8 *dest, |
| u16 proto, const u8 *buf, size_t len) |
| { |
| #ifdef CONFIG_TESTING_OPTIONS |
| if (wpa_s->ext_eapol_frame_io && proto == ETH_P_EAPOL) { |
| size_t hex_len = 2 * len + 1; |
| char *hex = os_malloc(hex_len); |
| |
| if (hex == NULL) |
| return -1; |
| wpa_snprintf_hex(hex, hex_len, buf, len); |
| wpa_msg(wpa_s, MSG_INFO, "EAPOL-TX " MACSTR " %s", |
| MAC2STR(dest), hex); |
| os_free(hex); |
| return 0; |
| } |
| #endif /* CONFIG_TESTING_OPTIONS */ |
| |
| if (wpa_s->l2) { |
| return l2_packet_send(wpa_s->l2, dest, proto, buf, len); |
| } |
| |
| return -1; |
| } |
| #endif /* IEEE8021X_EAPOL || !CONFIG_NO_WPA */ |
| |
| |
| #ifdef IEEE8021X_EAPOL |
| |
| /** |
| * wpa_supplicant_eapol_send - Send IEEE 802.1X EAPOL packet to Authenticator |
| * @ctx: Pointer to wpa_supplicant data (wpa_s) |
| * @type: IEEE 802.1X packet type (IEEE802_1X_TYPE_*) |
| * @buf: EAPOL payload (after IEEE 802.1X header) |
| * @len: EAPOL payload length |
| * Returns: >=0 on success, <0 on failure |
| * |
| * This function adds Ethernet and IEEE 802.1X header and sends the EAPOL frame |
| * to the current Authenticator. |
| */ |
| static int wpa_supplicant_eapol_send(void *ctx, int type, const u8 *buf, |
| size_t len) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| u8 *msg, *dst, bssid[ETH_ALEN]; |
| size_t msglen; |
| int res; |
| |
| /* TODO: could add l2_packet_sendmsg that allows fragments to avoid |
| * extra copy here */ |
| |
| if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || |
| wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) { |
| /* Current SSID is not using IEEE 802.1X/EAP, so drop possible |
| * EAPOL frames (mainly, EAPOL-Start) from EAPOL state |
| * machines. */ |
| wpa_printf(MSG_DEBUG, "WPA: drop TX EAPOL in non-IEEE 802.1X " |
| "mode (type=%d len=%lu)", type, |
| (unsigned long) len); |
| return -1; |
| } |
| |
| if (pmksa_cache_get_current(wpa_s->wpa) && |
| type == IEEE802_1X_TYPE_EAPOL_START) { |
| /* |
| * We were trying to use PMKSA caching and sending EAPOL-Start |
| * would abort that and trigger full EAPOL authentication. |
| * However, we've already waited for the AP/Authenticator to |
| * start 4-way handshake or EAP authentication, and apparently |
| * it has not done so since the startWhen timer has reached zero |
| * to get the state machine sending EAPOL-Start. This is not |
| * really supposed to happen, but an interoperability issue with |
| * a deployed AP has been identified where the connection fails |
| * due to that AP failing to operate correctly if PMKID is |
| * included in the Association Request frame. To work around |
| * this, assume PMKSA caching failed and try to initiate full |
| * EAP authentication. |
| */ |
| if (!wpa_s->current_ssid || |
| wpa_s->current_ssid->eap_workaround) { |
| wpa_printf(MSG_DEBUG, |
| "RSN: Timeout on waiting for the AP to initiate 4-way handshake for PMKSA caching or EAP authentication - try to force it to start EAP authentication"); |
| } else { |
| wpa_printf(MSG_DEBUG, |
| "RSN: PMKSA caching - do not send EAPOL-Start"); |
| return -1; |
| } |
| } |
| |
| if (is_zero_ether_addr(wpa_s->bssid)) { |
| wpa_printf(MSG_DEBUG, "BSSID not set when trying to send an " |
| "EAPOL frame"); |
| if (wpa_drv_get_bssid(wpa_s, bssid) == 0 && |
| !is_zero_ether_addr(bssid)) { |
| dst = bssid; |
| wpa_printf(MSG_DEBUG, "Using current BSSID " MACSTR |
| " from the driver as the EAPOL destination", |
| MAC2STR(dst)); |
| } else { |
| dst = wpa_s->last_eapol_src; |
| wpa_printf(MSG_DEBUG, "Using the source address of the" |
| " last received EAPOL frame " MACSTR " as " |
| "the EAPOL destination", |
| MAC2STR(dst)); |
| } |
| } else { |
| /* BSSID was already set (from (Re)Assoc event, so use it as |
| * the EAPOL destination. */ |
| dst = wpa_s->bssid; |
| } |
| |
| msg = wpa_alloc_eapol(wpa_s, type, buf, len, &msglen, NULL); |
| if (msg == NULL) |
| return -1; |
| |
| wpa_printf(MSG_DEBUG, "TX EAPOL: dst=" MACSTR, MAC2STR(dst)); |
| wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", msg, msglen); |
| res = wpa_ether_send(wpa_s, dst, ETH_P_EAPOL, msg, msglen); |
| os_free(msg); |
| return res; |
| } |
| |
| |
| /** |
| * wpa_eapol_set_wep_key - set WEP key for the driver |
| * @ctx: Pointer to wpa_supplicant data (wpa_s) |
| * @unicast: 1 = individual unicast key, 0 = broadcast key |
| * @keyidx: WEP key index (0..3) |
| * @key: Pointer to key data |
| * @keylen: Key length in bytes |
| * Returns: 0 on success or < 0 on error. |
| */ |
| static int wpa_eapol_set_wep_key(void *ctx, int unicast, int keyidx, |
| const u8 *key, size_t keylen) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { |
| int cipher = (keylen == 5) ? WPA_CIPHER_WEP40 : |
| WPA_CIPHER_WEP104; |
| if (unicast) |
| wpa_s->pairwise_cipher = cipher; |
| else |
| wpa_s->group_cipher = cipher; |
| } |
| return wpa_drv_set_key(wpa_s, WPA_ALG_WEP, |
| unicast ? wpa_s->bssid : NULL, |
| keyidx, unicast, NULL, 0, key, keylen); |
| } |
| |
| |
| static void wpa_supplicant_aborted_cached(void *ctx) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| wpa_sm_aborted_cached(wpa_s->wpa); |
| } |
| |
| |
| static const char * result_str(enum eapol_supp_result result) |
| { |
| switch (result) { |
| case EAPOL_SUPP_RESULT_FAILURE: |
| return "FAILURE"; |
| case EAPOL_SUPP_RESULT_SUCCESS: |
| return "SUCCESS"; |
| case EAPOL_SUPP_RESULT_EXPECTED_FAILURE: |
| return "EXPECTED_FAILURE"; |
| } |
| return "?"; |
| } |
| |
| |
| static void wpa_supplicant_eapol_cb(struct eapol_sm *eapol, |
| enum eapol_supp_result result, |
| void *ctx) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| int res, pmk_len; |
| u8 pmk[PMK_LEN]; |
| |
| wpa_printf(MSG_DEBUG, "EAPOL authentication completed - result=%s", |
| result_str(result)); |
| |
| if (wpas_wps_eapol_cb(wpa_s) > 0) |
| return; |
| |
| wpa_s->eap_expected_failure = result == |
| EAPOL_SUPP_RESULT_EXPECTED_FAILURE; |
| |
| if (result != EAPOL_SUPP_RESULT_SUCCESS) { |
| /* |
| * Make sure we do not get stuck here waiting for long EAPOL |
| * timeout if the AP does not disconnect in case of |
| * authentication failure. |
| */ |
| wpa_supplicant_req_auth_timeout(wpa_s, 2, 0); |
| } else { |
| ieee802_1x_notify_create_actor(wpa_s, wpa_s->last_eapol_src); |
| } |
| |
| if (result != EAPOL_SUPP_RESULT_SUCCESS || |
| !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE)) |
| return; |
| |
| if (!wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) |
| return; |
| |
| wpa_printf(MSG_DEBUG, "Configure PMK for driver-based RSN 4-way " |
| "handshake"); |
| |
| pmk_len = PMK_LEN; |
| if (wpa_key_mgmt_ft(wpa_s->key_mgmt)) { |
| #ifdef CONFIG_IEEE80211R |
| u8 buf[2 * PMK_LEN]; |
| wpa_printf(MSG_DEBUG, "RSN: Use FT XXKey as PMK for " |
| "driver-based 4-way hs and FT"); |
| res = eapol_sm_get_key(eapol, buf, 2 * PMK_LEN); |
| if (res == 0) { |
| os_memcpy(pmk, buf + PMK_LEN, PMK_LEN); |
| os_memset(buf, 0, sizeof(buf)); |
| } |
| #else /* CONFIG_IEEE80211R */ |
| res = -1; |
| #endif /* CONFIG_IEEE80211R */ |
| } else { |
| res = eapol_sm_get_key(eapol, pmk, PMK_LEN); |
| if (res) { |
| /* |
| * EAP-LEAP is an exception from other EAP methods: it |
| * uses only 16-byte PMK. |
| */ |
| res = eapol_sm_get_key(eapol, pmk, 16); |
| pmk_len = 16; |
| } |
| } |
| |
| if (res) { |
| wpa_printf(MSG_DEBUG, "Failed to get PMK from EAPOL state " |
| "machines"); |
| return; |
| } |
| |
| wpa_hexdump_key(MSG_DEBUG, "RSN: Configure PMK for driver-based 4-way " |
| "handshake", pmk, pmk_len); |
| |
| if (wpa_drv_set_key(wpa_s, WPA_ALG_PMK, NULL, 0, 0, NULL, 0, pmk, |
| pmk_len)) { |
| wpa_printf(MSG_DEBUG, "Failed to set PMK to the driver"); |
| } |
| |
| wpa_supplicant_cancel_scan(wpa_s); |
| wpa_supplicant_cancel_auth_timeout(wpa_s); |
| wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); |
| |
| } |
| |
| |
| static void wpa_supplicant_notify_eapol_done(void *ctx) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| wpa_msg(wpa_s, MSG_DEBUG, "WPA: EAPOL processing complete"); |
| if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { |
| wpa_supplicant_set_state(wpa_s, WPA_4WAY_HANDSHAKE); |
| } else { |
| wpa_supplicant_cancel_auth_timeout(wpa_s); |
| wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); |
| } |
| } |
| |
| #endif /* IEEE8021X_EAPOL */ |
| |
| |
| #ifndef CONFIG_NO_WPA |
| |
| static int wpa_get_beacon_ie(struct wpa_supplicant *wpa_s) |
| { |
| int ret = 0; |
| struct wpa_bss *curr = NULL, *bss; |
| struct wpa_ssid *ssid = wpa_s->current_ssid; |
| const u8 *ie; |
| |
| dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { |
| if (os_memcmp(bss->bssid, wpa_s->bssid, ETH_ALEN) != 0) |
| continue; |
| if (ssid == NULL || |
| ((bss->ssid_len == ssid->ssid_len && |
| os_memcmp(bss->ssid, ssid->ssid, ssid->ssid_len) == 0) || |
| ssid->ssid_len == 0)) { |
| curr = bss; |
| break; |
| } |
| } |
| |
| if (curr) { |
| ie = wpa_bss_get_vendor_ie(curr, WPA_IE_VENDOR_TYPE); |
| if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0)) |
| ret = -1; |
| |
| ie = wpa_bss_get_ie(curr, WLAN_EID_RSN); |
| if (wpa_sm_set_ap_rsn_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0)) |
| ret = -1; |
| } else { |
| ret = -1; |
| } |
| |
| return ret; |
| } |
| |
| |
| static int wpa_supplicant_get_beacon_ie(void *ctx) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| if (wpa_get_beacon_ie(wpa_s) == 0) { |
| return 0; |
| } |
| |
| /* No WPA/RSN IE found in the cached scan results. Try to get updated |
| * scan results from the driver. */ |
| if (wpa_supplicant_update_scan_results(wpa_s) < 0) |
| return -1; |
| |
| return wpa_get_beacon_ie(wpa_s); |
| } |
| |
| |
| static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type, |
| const void *data, u16 data_len, |
| size_t *msg_len, void **data_pos) |
| { |
| return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos); |
| } |
| |
| |
| static int _wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto, |
| const u8 *buf, size_t len) |
| { |
| return wpa_ether_send(wpa_s, dest, proto, buf, len); |
| } |
| |
| |
| static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s) |
| { |
| wpa_supplicant_cancel_auth_timeout(wpa_s); |
| } |
| |
| |
| static void _wpa_supplicant_set_state(void *wpa_s, enum wpa_states state) |
| { |
| wpa_supplicant_set_state(wpa_s, state); |
| } |
| |
| |
| /** |
| * wpa_supplicant_get_state - Get the connection state |
| * @wpa_s: Pointer to wpa_supplicant data |
| * Returns: The current connection state (WPA_*) |
| */ |
| static enum wpa_states wpa_supplicant_get_state(struct wpa_supplicant *wpa_s) |
| { |
| return wpa_s->wpa_state; |
| } |
| |
| |
| static enum wpa_states _wpa_supplicant_get_state(void *wpa_s) |
| { |
| return wpa_supplicant_get_state(wpa_s); |
| } |
| |
| |
| static void _wpa_supplicant_deauthenticate(void *wpa_s, int reason_code) |
| { |
| wpa_supplicant_deauthenticate(wpa_s, reason_code); |
| /* Schedule a scan to make sure we continue looking for networks */ |
| wpa_supplicant_req_scan(wpa_s, 5, 0); |
| } |
| |
| |
| static void * wpa_supplicant_get_network_ctx(void *wpa_s) |
| { |
| return wpa_supplicant_get_ssid(wpa_s); |
| } |
| |
| |
| static int wpa_supplicant_get_bssid(void *ctx, u8 *bssid) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| return wpa_drv_get_bssid(wpa_s, bssid); |
| } |
| |
| |
| static int wpa_supplicant_set_key(void *_wpa_s, enum wpa_alg alg, |
| const u8 *addr, int key_idx, int set_tx, |
| const u8 *seq, size_t seq_len, |
| const u8 *key, size_t key_len) |
| { |
| struct wpa_supplicant *wpa_s = _wpa_s; |
| if (alg == WPA_ALG_TKIP && key_idx == 0 && key_len == 32) { |
| /* Clear the MIC error counter when setting a new PTK. */ |
| wpa_s->mic_errors_seen = 0; |
| } |
| #ifdef CONFIG_TESTING_GET_GTK |
| if (key_idx > 0 && addr && is_broadcast_ether_addr(addr) && |
| alg != WPA_ALG_NONE && key_len <= sizeof(wpa_s->last_gtk)) { |
| os_memcpy(wpa_s->last_gtk, key, key_len); |
| wpa_s->last_gtk_len = key_len; |
| } |
| #endif /* CONFIG_TESTING_GET_GTK */ |
| return wpa_drv_set_key(wpa_s, alg, addr, key_idx, set_tx, seq, seq_len, |
| key, key_len); |
| } |
| |
| |
| static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr, |
| int protection_type, |
| int key_type) |
| { |
| return wpa_drv_mlme_setprotection(wpa_s, addr, protection_type, |
| key_type); |
| } |
| |
| |
| static int wpa_supplicant_add_pmkid(void *wpa_s, |
| const u8 *bssid, const u8 *pmkid) |
| { |
| return wpa_drv_add_pmkid(wpa_s, bssid, pmkid); |
| } |
| |
| |
| static int wpa_supplicant_remove_pmkid(void *wpa_s, |
| const u8 *bssid, const u8 *pmkid) |
| { |
| return wpa_drv_remove_pmkid(wpa_s, bssid, pmkid); |
| } |
| |
| |
| #ifdef CONFIG_IEEE80211R |
| static int wpa_supplicant_update_ft_ies(void *ctx, const u8 *md, |
| const u8 *ies, size_t ies_len) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) |
| return sme_update_ft_ies(wpa_s, md, ies, ies_len); |
| return wpa_drv_update_ft_ies(wpa_s, md, ies, ies_len); |
| } |
| |
| |
| static int wpa_supplicant_send_ft_action(void *ctx, u8 action, |
| const u8 *target_ap, |
| const u8 *ies, size_t ies_len) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| int ret; |
| u8 *data, *pos; |
| size_t data_len; |
| |
| if (action != 1) { |
| wpa_printf(MSG_ERROR, "Unsupported send_ft_action action %d", |
| action); |
| return -1; |
| } |
| |
| /* |
| * Action frame payload: |
| * Category[1] = 6 (Fast BSS Transition) |
| * Action[1] = 1 (Fast BSS Transition Request) |
| * STA Address |
| * Target AP Address |
| * FT IEs |
| */ |
| |
| data_len = 2 + 2 * ETH_ALEN + ies_len; |
| data = os_malloc(data_len); |
| if (data == NULL) |
| return -1; |
| pos = data; |
| *pos++ = 0x06; /* FT Action category */ |
| *pos++ = action; |
| os_memcpy(pos, wpa_s->own_addr, ETH_ALEN); |
| pos += ETH_ALEN; |
| os_memcpy(pos, target_ap, ETH_ALEN); |
| pos += ETH_ALEN; |
| os_memcpy(pos, ies, ies_len); |
| |
| ret = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, |
| wpa_s->bssid, wpa_s->own_addr, wpa_s->bssid, |
| data, data_len, 0); |
| os_free(data); |
| |
| return ret; |
| } |
| |
| |
| static int wpa_supplicant_mark_authenticated(void *ctx, const u8 *target_ap) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| struct wpa_driver_auth_params params; |
| struct wpa_bss *bss; |
| |
| bss = wpa_bss_get_bssid(wpa_s, target_ap); |
| if (bss == NULL) |
| return -1; |
| |
| os_memset(¶ms, 0, sizeof(params)); |
| params.bssid = target_ap; |
| params.freq = bss->freq; |
| params.ssid = bss->ssid; |
| params.ssid_len = bss->ssid_len; |
| params.auth_alg = WPA_AUTH_ALG_FT; |
| params.local_state_change = 1; |
| return wpa_drv_authenticate(wpa_s, ¶ms); |
| } |
| #endif /* CONFIG_IEEE80211R */ |
| |
| |
| #ifdef CONFIG_TDLS |
| |
| static int wpa_supplicant_tdls_get_capa(void *ctx, int *tdls_supported, |
| int *tdls_ext_setup, |
| int *tdls_chan_switch) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| |
| *tdls_supported = 0; |
| *tdls_ext_setup = 0; |
| *tdls_chan_switch = 0; |
| |
| if (!wpa_s->drv_capa_known) |
| return -1; |
| |
| if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT) |
| *tdls_supported = 1; |
| |
| if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP) |
| *tdls_ext_setup = 1; |
| |
| if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH) |
| *tdls_chan_switch = 1; |
| |
| return 0; |
| } |
| |
| |
| static int wpa_supplicant_send_tdls_mgmt(void *ctx, const u8 *dst, |
| u8 action_code, u8 dialog_token, |
| u16 status_code, u32 peer_capab, |
| int initiator, const u8 *buf, |
| size_t len) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| return wpa_drv_send_tdls_mgmt(wpa_s, dst, action_code, dialog_token, |
| status_code, peer_capab, initiator, buf, |
| len); |
| } |
| |
| |
| static int wpa_supplicant_tdls_oper(void *ctx, int oper, const u8 *peer) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| return wpa_drv_tdls_oper(wpa_s, oper, peer); |
| } |
| |
| |
| static int wpa_supplicant_tdls_peer_addset( |
| void *ctx, const u8 *peer, int add, u16 aid, u16 capability, |
| const u8 *supp_rates, size_t supp_rates_len, |
| const struct ieee80211_ht_capabilities *ht_capab, |
| const struct ieee80211_vht_capabilities *vht_capab, |
| u8 qosinfo, int wmm, const u8 *ext_capab, size_t ext_capab_len, |
| const u8 *supp_channels, size_t supp_channels_len, |
| const u8 *supp_oper_classes, size_t supp_oper_classes_len) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| struct hostapd_sta_add_params params; |
| |
| os_memset(¶ms, 0, sizeof(params)); |
| |
| params.addr = peer; |
| params.aid = aid; |
| params.capability = capability; |
| params.flags = WPA_STA_TDLS_PEER | WPA_STA_AUTHORIZED; |
| |
| /* |
| * Don't rely only on qosinfo for WMM capability. It may be 0 even when |
| * present. Allow the WMM IE to also indicate QoS support. |
| */ |
| if (wmm || qosinfo) |
| params.flags |= WPA_STA_WMM; |
| |
| params.ht_capabilities = ht_capab; |
| params.vht_capabilities = vht_capab; |
| params.qosinfo = qosinfo; |
| params.listen_interval = 0; |
| params.supp_rates = supp_rates; |
| params.supp_rates_len = supp_rates_len; |
| params.set = !add; |
| params.ext_capab = ext_capab; |
| params.ext_capab_len = ext_capab_len; |
| params.supp_channels = supp_channels; |
| params.supp_channels_len = supp_channels_len; |
| params.supp_oper_classes = supp_oper_classes; |
| params.supp_oper_classes_len = supp_oper_classes_len; |
| |
| return wpa_drv_sta_add(wpa_s, ¶ms); |
| } |
| |
| |
| static int wpa_supplicant_tdls_enable_channel_switch( |
| void *ctx, const u8 *addr, u8 oper_class, |
| const struct hostapd_freq_params *params) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| |
| return wpa_drv_tdls_enable_channel_switch(wpa_s, addr, oper_class, |
| params); |
| } |
| |
| |
| static int wpa_supplicant_tdls_disable_channel_switch(void *ctx, const u8 *addr) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| |
| return wpa_drv_tdls_disable_channel_switch(wpa_s, addr); |
| } |
| |
| #endif /* CONFIG_TDLS */ |
| |
| #endif /* CONFIG_NO_WPA */ |
| |
| |
| enum wpa_ctrl_req_type wpa_supplicant_ctrl_req_from_string(const char *field) |
| { |
| if (os_strcmp(field, "IDENTITY") == 0) |
| return WPA_CTRL_REQ_EAP_IDENTITY; |
| else if (os_strcmp(field, "PASSWORD") == 0) |
| return WPA_CTRL_REQ_EAP_PASSWORD; |
| else if (os_strcmp(field, "NEW_PASSWORD") == 0) |
| return WPA_CTRL_REQ_EAP_NEW_PASSWORD; |
| else if (os_strcmp(field, "PIN") == 0) |
| return WPA_CTRL_REQ_EAP_PIN; |
| else if (os_strcmp(field, "OTP") == 0) |
| return WPA_CTRL_REQ_EAP_OTP; |
| else if (os_strcmp(field, "PASSPHRASE") == 0) |
| return WPA_CTRL_REQ_EAP_PASSPHRASE; |
| else if (os_strcmp(field, "SIM") == 0) |
| return WPA_CTRL_REQ_SIM; |
| else if (os_strcmp(field, "PSK_PASSPHRASE") == 0) |
| return WPA_CTRL_REQ_PSK_PASSPHRASE; |
| return WPA_CTRL_REQ_UNKNOWN; |
| } |
| |
| |
| const char * wpa_supplicant_ctrl_req_to_string(enum wpa_ctrl_req_type field, |
| const char *default_txt, |
| const char **txt) |
| { |
| const char *ret = NULL; |
| |
| *txt = default_txt; |
| |
| switch (field) { |
| case WPA_CTRL_REQ_EAP_IDENTITY: |
| *txt = "Identity"; |
| ret = "IDENTITY"; |
| break; |
| case WPA_CTRL_REQ_EAP_PASSWORD: |
| *txt = "Password"; |
| ret = "PASSWORD"; |
| break; |
| case WPA_CTRL_REQ_EAP_NEW_PASSWORD: |
| *txt = "New Password"; |
| ret = "NEW_PASSWORD"; |
| break; |
| case WPA_CTRL_REQ_EAP_PIN: |
| *txt = "PIN"; |
| ret = "PIN"; |
| break; |
| case WPA_CTRL_REQ_EAP_OTP: |
| ret = "OTP"; |
| break; |
| case WPA_CTRL_REQ_EAP_PASSPHRASE: |
| *txt = "Private key passphrase"; |
| ret = "PASSPHRASE"; |
| break; |
| case WPA_CTRL_REQ_SIM: |
| ret = "SIM"; |
| break; |
| case WPA_CTRL_REQ_PSK_PASSPHRASE: |
| *txt = "PSK or passphrase"; |
| ret = "PSK_PASSPHRASE"; |
| break; |
| default: |
| break; |
| } |
| |
| /* txt needs to be something */ |
| if (*txt == NULL) { |
| wpa_printf(MSG_WARNING, "No message for request %d", field); |
| ret = NULL; |
| } |
| |
| return ret; |
| } |
| |
| |
| void wpas_send_ctrl_req(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid, |
| const char *field_name, const char *txt) |
| { |
| char *buf; |
| size_t buflen; |
| int len; |
| |
| buflen = 100 + os_strlen(txt) + ssid->ssid_len; |
| buf = os_malloc(buflen); |
| if (buf == NULL) |
| return; |
| len = os_snprintf(buf, buflen, "%s-%d:%s needed for SSID ", |
| field_name, ssid->id, txt); |
| if (os_snprintf_error(buflen, len)) { |
| os_free(buf); |
| return; |
| } |
| if (ssid->ssid && buflen > len + ssid->ssid_len) { |
| os_memcpy(buf + len, ssid->ssid, ssid->ssid_len); |
| len += ssid->ssid_len; |
| buf[len] = '\0'; |
| } |
| buf[buflen - 1] = '\0'; |
| wpa_msg(wpa_s, MSG_INFO, WPA_CTRL_REQ "%s", buf); |
| os_free(buf); |
| } |
| |
| |
| #ifdef IEEE8021X_EAPOL |
| #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG) |
| static void wpa_supplicant_eap_param_needed(void *ctx, |
| enum wpa_ctrl_req_type field, |
| const char *default_txt) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| struct wpa_ssid *ssid = wpa_s->current_ssid; |
| const char *field_name, *txt = NULL; |
| |
| if (ssid == NULL) |
| return; |
| |
| wpas_notify_network_request(wpa_s, ssid, field, default_txt); |
| |
| field_name = wpa_supplicant_ctrl_req_to_string(field, default_txt, |
| &txt); |
| if (field_name == NULL) { |
| wpa_printf(MSG_WARNING, "Unhandled EAP param %d needed", |
| field); |
| return; |
| } |
| |
| wpas_notify_eap_status(wpa_s, "eap parameter needed", field_name); |
| |
| wpas_send_ctrl_req(wpa_s, ssid, field_name, txt); |
| } |
| #else /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ |
| #define wpa_supplicant_eap_param_needed NULL |
| #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ |
| |
| |
| #ifdef CONFIG_EAP_PROXY |
| static void wpa_supplicant_eap_proxy_cb(void *ctx) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| size_t len; |
| |
| wpa_s->mnc_len = eapol_sm_get_eap_proxy_imsi(wpa_s->eapol, |
| wpa_s->imsi, &len); |
| if (wpa_s->mnc_len > 0) { |
| wpa_s->imsi[len] = '\0'; |
| wpa_printf(MSG_DEBUG, "eap_proxy: IMSI %s (MNC length %d)", |
| wpa_s->imsi, wpa_s->mnc_len); |
| } else { |
| wpa_printf(MSG_DEBUG, "eap_proxy: IMSI not available"); |
| } |
| } |
| #endif /* CONFIG_EAP_PROXY */ |
| |
| |
| static void wpa_supplicant_port_cb(void *ctx, int authorized) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| #ifdef CONFIG_AP |
| if (wpa_s->ap_iface) { |
| wpa_printf(MSG_DEBUG, "AP mode active - skip EAPOL Supplicant " |
| "port status: %s", |
| authorized ? "Authorized" : "Unauthorized"); |
| return; |
| } |
| #endif /* CONFIG_AP */ |
| wpa_printf(MSG_DEBUG, "EAPOL: Supplicant port status: %s", |
| authorized ? "Authorized" : "Unauthorized"); |
| wpa_drv_set_supp_port(wpa_s, authorized); |
| } |
| |
| |
| static void wpa_supplicant_cert_cb(void *ctx, int depth, const char *subject, |
| const char *altsubject[], int num_altsubject, |
| const char *cert_hash, |
| const struct wpabuf *cert) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| |
| wpas_notify_certification(wpa_s, depth, subject, altsubject, |
| num_altsubject, cert_hash, cert); |
| } |
| |
| |
| static void wpa_supplicant_status_cb(void *ctx, const char *status, |
| const char *parameter) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| |
| wpas_notify_eap_status(wpa_s, status, parameter); |
| } |
| |
| |
| static void wpa_supplicant_set_anon_id(void *ctx, const u8 *id, size_t len) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| char *str; |
| int res; |
| |
| wpa_hexdump_ascii(MSG_DEBUG, "EAP method updated anonymous_identity", |
| id, len); |
| |
| if (wpa_s->current_ssid == NULL) |
| return; |
| |
| if (id == NULL) { |
| if (wpa_config_set(wpa_s->current_ssid, "anonymous_identity", |
| "NULL", 0) < 0) |
| return; |
| } else { |
| str = os_malloc(len * 2 + 1); |
| if (str == NULL) |
| return; |
| wpa_snprintf_hex(str, len * 2 + 1, id, len); |
| res = wpa_config_set(wpa_s->current_ssid, "anonymous_identity", |
| str, 0); |
| os_free(str); |
| if (res < 0) |
| return; |
| } |
| |
| if (wpa_s->conf->update_config) { |
| res = wpa_config_write(wpa_s->confname, wpa_s->conf); |
| if (res) { |
| wpa_printf(MSG_DEBUG, "Failed to update config after " |
| "anonymous_id update"); |
| } |
| } |
| } |
| #endif /* IEEE8021X_EAPOL */ |
| |
| |
| int wpa_supplicant_init_eapol(struct wpa_supplicant *wpa_s) |
| { |
| #ifdef IEEE8021X_EAPOL |
| struct eapol_ctx *ctx; |
| ctx = os_zalloc(sizeof(*ctx)); |
| if (ctx == NULL) { |
| wpa_printf(MSG_ERROR, "Failed to allocate EAPOL context."); |
| return -1; |
| } |
| |
| ctx->ctx = wpa_s; |
| ctx->msg_ctx = wpa_s; |
| ctx->eapol_send_ctx = wpa_s; |
| ctx->preauth = 0; |
| ctx->eapol_done_cb = wpa_supplicant_notify_eapol_done; |
| ctx->eapol_send = wpa_supplicant_eapol_send; |
| ctx->set_wep_key = wpa_eapol_set_wep_key; |
| #ifndef CONFIG_NO_CONFIG_BLOBS |
| ctx->set_config_blob = wpa_supplicant_set_config_blob; |
| ctx->get_config_blob = wpa_supplicant_get_config_blob; |
| #endif /* CONFIG_NO_CONFIG_BLOBS */ |
| ctx->aborted_cached = wpa_supplicant_aborted_cached; |
| ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path; |
| ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path; |
| ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path; |
| ctx->openssl_ciphers = wpa_s->conf->openssl_ciphers; |
| ctx->wps = wpa_s->wps; |
| ctx->eap_param_needed = wpa_supplicant_eap_param_needed; |
| #ifdef CONFIG_EAP_PROXY |
| ctx->eap_proxy_cb = wpa_supplicant_eap_proxy_cb; |
| #endif /* CONFIG_EAP_PROXY */ |
| ctx->port_cb = wpa_supplicant_port_cb; |
| ctx->cb = wpa_supplicant_eapol_cb; |
| ctx->cert_cb = wpa_supplicant_cert_cb; |
| ctx->cert_in_cb = wpa_s->conf->cert_in_cb; |
| ctx->status_cb = wpa_supplicant_status_cb; |
| ctx->set_anon_id = wpa_supplicant_set_anon_id; |
| ctx->cb_ctx = wpa_s; |
| wpa_s->eapol = eapol_sm_init(ctx); |
| if (wpa_s->eapol == NULL) { |
| os_free(ctx); |
| wpa_printf(MSG_ERROR, "Failed to initialize EAPOL state " |
| "machines."); |
| return -1; |
| } |
| #endif /* IEEE8021X_EAPOL */ |
| |
| return 0; |
| } |
| |
| |
| #ifndef CONFIG_NO_WPA |
| static void wpa_supplicant_set_rekey_offload(void *ctx, |
| const u8 *kek, size_t kek_len, |
| const u8 *kck, size_t kck_len, |
| const u8 *replay_ctr) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| |
| wpa_drv_set_rekey_info(wpa_s, kek, kek_len, kck, kck_len, replay_ctr); |
| } |
| #endif /* CONFIG_NO_WPA */ |
| |
| |
| static int wpa_supplicant_key_mgmt_set_pmk(void *ctx, const u8 *pmk, |
| size_t pmk_len) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| |
| if (wpa_s->conf->key_mgmt_offload) |
| return wpa_drv_set_key(wpa_s, WPA_ALG_PMK, NULL, 0, 0, |
| NULL, 0, pmk, pmk_len); |
| else |
| return 0; |
| } |
| |
| |
| int wpa_supplicant_init_wpa(struct wpa_supplicant *wpa_s) |
| { |
| #ifndef CONFIG_NO_WPA |
| struct wpa_sm_ctx *ctx; |
| ctx = os_zalloc(sizeof(*ctx)); |
| if (ctx == NULL) { |
| wpa_printf(MSG_ERROR, "Failed to allocate WPA context."); |
| return -1; |
| } |
| |
| ctx->ctx = wpa_s; |
| ctx->msg_ctx = wpa_s; |
| ctx->set_state = _wpa_supplicant_set_state; |
| ctx->get_state = _wpa_supplicant_get_state; |
| ctx->deauthenticate = _wpa_supplicant_deauthenticate; |
| ctx->set_key = wpa_supplicant_set_key; |
| ctx->get_network_ctx = wpa_supplicant_get_network_ctx; |
| ctx->get_bssid = wpa_supplicant_get_bssid; |
| ctx->ether_send = _wpa_ether_send; |
| ctx->get_beacon_ie = wpa_supplicant_get_beacon_ie; |
| ctx->alloc_eapol = _wpa_alloc_eapol; |
| ctx->cancel_auth_timeout = _wpa_supplicant_cancel_auth_timeout; |
| ctx->add_pmkid = wpa_supplicant_add_pmkid; |
| ctx->remove_pmkid = wpa_supplicant_remove_pmkid; |
| #ifndef CONFIG_NO_CONFIG_BLOBS |
| ctx->set_config_blob = wpa_supplicant_set_config_blob; |
| ctx->get_config_blob = wpa_supplicant_get_config_blob; |
| #endif /* CONFIG_NO_CONFIG_BLOBS */ |
| ctx->mlme_setprotection = wpa_supplicant_mlme_setprotection; |
| #ifdef CONFIG_IEEE80211R |
| ctx->update_ft_ies = wpa_supplicant_update_ft_ies; |
| ctx->send_ft_action = wpa_supplicant_send_ft_action; |
| ctx->mark_authenticated = wpa_supplicant_mark_authenticated; |
| #endif /* CONFIG_IEEE80211R */ |
| #ifdef CONFIG_TDLS |
| ctx->tdls_get_capa = wpa_supplicant_tdls_get_capa; |
| ctx->send_tdls_mgmt = wpa_supplicant_send_tdls_mgmt; |
| ctx->tdls_oper = wpa_supplicant_tdls_oper; |
| ctx->tdls_peer_addset = wpa_supplicant_tdls_peer_addset; |
| ctx->tdls_enable_channel_switch = |
| wpa_supplicant_tdls_enable_channel_switch; |
| ctx->tdls_disable_channel_switch = |
| wpa_supplicant_tdls_disable_channel_switch; |
| #endif /* CONFIG_TDLS */ |
| ctx->set_rekey_offload = wpa_supplicant_set_rekey_offload; |
| ctx->key_mgmt_set_pmk = wpa_supplicant_key_mgmt_set_pmk; |
| |
| wpa_s->wpa = wpa_sm_init(ctx); |
| if (wpa_s->wpa == NULL) { |
| wpa_printf(MSG_ERROR, "Failed to initialize WPA state " |
| "machine"); |
| os_free(ctx); |
| return -1; |
| } |
| #endif /* CONFIG_NO_WPA */ |
| |
| return 0; |
| } |
| |
| |
| void wpa_supplicant_rsn_supp_set_config(struct wpa_supplicant *wpa_s, |
| struct wpa_ssid *ssid) |
| { |
| struct rsn_supp_config conf; |
| if (ssid) { |
| os_memset(&conf, 0, sizeof(conf)); |
| conf.network_ctx = ssid; |
| conf.peerkey_enabled = ssid->peerkey; |
| conf.allowed_pairwise_cipher = ssid->pairwise_cipher; |
| #ifdef IEEE8021X_EAPOL |
| conf.proactive_key_caching = ssid->proactive_key_caching < 0 ? |
| wpa_s->conf->okc : ssid->proactive_key_caching; |
| conf.eap_workaround = ssid->eap_workaround; |
| conf.eap_conf_ctx = &ssid->eap; |
| #endif /* IEEE8021X_EAPOL */ |
| conf.ssid = ssid->ssid; |
| conf.ssid_len = ssid->ssid_len; |
| conf.wpa_ptk_rekey = ssid->wpa_ptk_rekey; |
| #ifdef CONFIG_P2P |
| if (ssid->p2p_group && wpa_s->current_bss && |
| !wpa_s->p2p_disable_ip_addr_req) { |
| struct wpabuf *p2p; |
| p2p = wpa_bss_get_vendor_ie_multi(wpa_s->current_bss, |
| P2P_IE_VENDOR_TYPE); |
| if (p2p) { |
| u8 group_capab; |
| group_capab = p2p_get_group_capab(p2p); |
| if (group_capab & |
| P2P_GROUP_CAPAB_IP_ADDR_ALLOCATION) |
| conf.p2p = 1; |
| wpabuf_free(p2p); |
| } |
| } |
| #endif /* CONFIG_P2P */ |
| } |
| wpa_sm_set_config(wpa_s->wpa, ssid ? &conf : NULL); |
| } |