| /* |
| * wpa_supplicant - DPP |
| * Copyright (c) 2017, Qualcomm Atheros, Inc. |
| * Copyright (c) 2018-2020, The Linux Foundation |
| * |
| * This software may be distributed under the terms of the BSD license. |
| * See README for more details. |
| */ |
| |
| #include "utils/includes.h" |
| |
| #include "utils/common.h" |
| #include "utils/eloop.h" |
| #include "utils/ip_addr.h" |
| #include "common/dpp.h" |
| #include "common/gas.h" |
| #include "common/gas_server.h" |
| #include "rsn_supp/wpa.h" |
| #include "rsn_supp/pmksa_cache.h" |
| #include "wpa_supplicant_i.h" |
| #include "config.h" |
| #include "driver_i.h" |
| #include "offchannel.h" |
| #include "gas_query.h" |
| #include "bss.h" |
| #include "scan.h" |
| #include "notify.h" |
| #include "dpp_supplicant.h" |
| #include "hidl.h" |
| |
| |
| static int wpas_dpp_listen_start(struct wpa_supplicant *wpa_s, |
| unsigned int freq); |
| static void wpas_dpp_reply_wait_timeout(void *eloop_ctx, void *timeout_ctx); |
| static void wpas_dpp_auth_success(struct wpa_supplicant *wpa_s, int initiator); |
| static void wpas_dpp_tx_status(struct wpa_supplicant *wpa_s, |
| unsigned int freq, const u8 *dst, |
| const u8 *src, const u8 *bssid, |
| const u8 *data, size_t data_len, |
| enum offchannel_send_action_result result); |
| static void wpas_dpp_init_timeout(void *eloop_ctx, void *timeout_ctx); |
| static int wpas_dpp_auth_init_next(struct wpa_supplicant *wpa_s); |
| static void |
| wpas_dpp_tx_pkex_status(struct wpa_supplicant *wpa_s, |
| unsigned int freq, const u8 *dst, |
| const u8 *src, const u8 *bssid, |
| const u8 *data, size_t data_len, |
| enum offchannel_send_action_result result); |
| |
| static const u8 broadcast[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; |
| |
| /* Use a hardcoded Transaction ID 1 in Peer Discovery frames since there is only |
| * a single transaction in progress at any point in time. */ |
| static const u8 TRANSACTION_ID = 1; |
| |
| |
| /** |
| * wpas_dpp_qr_code - Parse and add DPP bootstrapping info from a QR Code |
| * @wpa_s: Pointer to wpa_supplicant data |
| * @cmd: DPP URI read from a QR Code |
| * Returns: Identifier of the stored info or -1 on failure |
| */ |
| int wpas_dpp_qr_code(struct wpa_supplicant *wpa_s, const char *cmd) |
| { |
| struct dpp_bootstrap_info *bi; |
| struct dpp_authentication *auth = wpa_s->dpp_auth; |
| |
| bi = dpp_add_qr_code(wpa_s->dpp, cmd); |
| if (!bi) |
| return -1; |
| |
| if (auth && auth->response_pending && |
| dpp_notify_new_qr_code(auth, bi) == 1) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Sending out pending authentication response"); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR |
| " freq=%u type=%d", |
| MAC2STR(auth->peer_mac_addr), auth->curr_freq, |
| DPP_PA_AUTHENTICATION_RESP); |
| offchannel_send_action(wpa_s, auth->curr_freq, |
| auth->peer_mac_addr, wpa_s->own_addr, |
| broadcast, |
| wpabuf_head(auth->resp_msg), |
| wpabuf_len(auth->resp_msg), |
| 500, wpas_dpp_tx_status, 0); |
| } |
| |
| return bi->id; |
| } |
| |
| |
| /** |
| * wpas_dpp_nfc_uri - Parse and add DPP bootstrapping info from NFC Tag (URI) |
| * @wpa_s: Pointer to wpa_supplicant data |
| * @cmd: DPP URI read from a NFC Tag (URI NDEF message) |
| * Returns: Identifier of the stored info or -1 on failure |
| */ |
| int wpas_dpp_nfc_uri(struct wpa_supplicant *wpa_s, const char *cmd) |
| { |
| struct dpp_bootstrap_info *bi; |
| |
| bi = dpp_add_nfc_uri(wpa_s->dpp, cmd); |
| if (!bi) |
| return -1; |
| |
| return bi->id; |
| } |
| |
| |
| int wpas_dpp_nfc_handover_req(struct wpa_supplicant *wpa_s, const char *cmd) |
| { |
| const char *pos; |
| struct dpp_bootstrap_info *peer_bi, *own_bi; |
| |
| pos = os_strstr(cmd, " own="); |
| if (!pos) |
| return -1; |
| pos += 5; |
| own_bi = dpp_bootstrap_get_id(wpa_s->dpp, atoi(pos)); |
| if (!own_bi) |
| return -1; |
| own_bi->nfc_negotiated = 1; |
| |
| pos = os_strstr(cmd, " uri="); |
| if (!pos) |
| return -1; |
| pos += 5; |
| peer_bi = dpp_add_nfc_uri(wpa_s->dpp, pos); |
| if (!peer_bi) { |
| wpa_printf(MSG_INFO, |
| "DPP: Failed to parse URI from NFC Handover Request"); |
| return -1; |
| } |
| |
| if (dpp_nfc_update_bi(own_bi, peer_bi) < 0) |
| return -1; |
| |
| return peer_bi->id; |
| } |
| |
| |
| int wpas_dpp_nfc_handover_sel(struct wpa_supplicant *wpa_s, const char *cmd) |
| { |
| const char *pos; |
| struct dpp_bootstrap_info *peer_bi, *own_bi; |
| |
| pos = os_strstr(cmd, " own="); |
| if (!pos) |
| return -1; |
| pos += 5; |
| own_bi = dpp_bootstrap_get_id(wpa_s->dpp, atoi(pos)); |
| if (!own_bi) |
| return -1; |
| own_bi->nfc_negotiated = 1; |
| |
| pos = os_strstr(cmd, " uri="); |
| if (!pos) |
| return -1; |
| pos += 5; |
| peer_bi = dpp_add_nfc_uri(wpa_s->dpp, pos); |
| if (!peer_bi) { |
| wpa_printf(MSG_INFO, |
| "DPP: Failed to parse URI from NFC Handover Select"); |
| return -1; |
| } |
| |
| if (peer_bi->curve != own_bi->curve) { |
| wpa_printf(MSG_INFO, |
| "DPP: Peer (NFC Handover Selector) used different curve"); |
| return -1; |
| } |
| |
| return peer_bi->id; |
| } |
| |
| |
| static void wpas_dpp_auth_resp_retry_timeout(void *eloop_ctx, void *timeout_ctx) |
| { |
| struct wpa_supplicant *wpa_s = eloop_ctx; |
| struct dpp_authentication *auth = wpa_s->dpp_auth; |
| |
| if (!auth || !auth->resp_msg) |
| return; |
| |
| wpa_printf(MSG_DEBUG, |
| "DPP: Retry Authentication Response after timeout"); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR |
| " freq=%u type=%d", |
| MAC2STR(auth->peer_mac_addr), auth->curr_freq, |
| DPP_PA_AUTHENTICATION_RESP); |
| offchannel_send_action(wpa_s, auth->curr_freq, auth->peer_mac_addr, |
| wpa_s->own_addr, broadcast, |
| wpabuf_head(auth->resp_msg), |
| wpabuf_len(auth->resp_msg), |
| 500, wpas_dpp_tx_status, 0); |
| } |
| |
| |
| static void wpas_dpp_auth_resp_retry(struct wpa_supplicant *wpa_s) |
| { |
| struct dpp_authentication *auth = wpa_s->dpp_auth; |
| unsigned int wait_time, max_tries; |
| |
| if (!auth || !auth->resp_msg) |
| return; |
| |
| if (wpa_s->dpp_resp_max_tries) |
| max_tries = wpa_s->dpp_resp_max_tries; |
| else |
| max_tries = 5; |
| auth->auth_resp_tries++; |
| if (auth->auth_resp_tries >= max_tries) { |
| wpa_printf(MSG_INFO, "DPP: No confirm received from initiator - stopping exchange"); |
| offchannel_send_action_done(wpa_s); |
| dpp_auth_deinit(wpa_s->dpp_auth); |
| wpa_s->dpp_auth = NULL; |
| return; |
| } |
| |
| if (wpa_s->dpp_resp_retry_time) |
| wait_time = wpa_s->dpp_resp_retry_time; |
| else |
| wait_time = 1000; |
| wpa_printf(MSG_DEBUG, |
| "DPP: Schedule retransmission of Authentication Response frame in %u ms", |
| wait_time); |
| eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s, NULL); |
| eloop_register_timeout(wait_time / 1000, |
| (wait_time % 1000) * 1000, |
| wpas_dpp_auth_resp_retry_timeout, wpa_s, NULL); |
| } |
| |
| |
| static void wpas_dpp_try_to_connect(struct wpa_supplicant *wpa_s) |
| { |
| wpa_printf(MSG_DEBUG, "DPP: Trying to connect to the new network"); |
| wpa_s->suitable_network = 0; |
| wpa_s->no_suitable_network = 0; |
| wpa_s->disconnected = 0; |
| wpa_s->reassociate = 1; |
| wpa_s->scan_runs = 0; |
| wpa_s->normal_scans = 0; |
| wpa_supplicant_cancel_sched_scan(wpa_s); |
| wpa_supplicant_req_scan(wpa_s, 0, 0); |
| } |
| |
| |
| #ifdef CONFIG_DPP2 |
| |
| static void wpas_dpp_conn_status_result_timeout(void *eloop_ctx, |
| void *timeout_ctx) |
| { |
| struct wpa_supplicant *wpa_s = eloop_ctx; |
| struct dpp_authentication *auth = wpa_s->dpp_auth; |
| enum dpp_status_error result; |
| |
| if (!auth || !auth->conn_status_requested) |
| return; |
| |
| wpa_printf(MSG_DEBUG, |
| "DPP: Connection timeout - report Connection Status Result"); |
| if (wpa_s->suitable_network) |
| result = DPP_STATUS_AUTH_FAILURE; |
| else if (wpa_s->no_suitable_network) |
| result = DPP_STATUS_NO_AP; |
| else |
| result = 255; /* What to report here for unexpected state? */ |
| if (wpa_s->wpa_state == WPA_SCANNING) |
| wpas_abort_ongoing_scan(wpa_s); |
| wpas_dpp_send_conn_status_result(wpa_s, result); |
| } |
| |
| |
| static char * wpas_dpp_scan_channel_list(struct wpa_supplicant *wpa_s) |
| { |
| char *str, *end, *pos; |
| size_t len; |
| unsigned int i; |
| u8 last_op_class = 0; |
| int res; |
| |
| if (!wpa_s->last_scan_freqs || !wpa_s->num_last_scan_freqs) |
| return NULL; |
| |
| len = wpa_s->num_last_scan_freqs * 8; |
| str = os_zalloc(len); |
| if (!str) |
| return NULL; |
| end = str + len; |
| pos = str; |
| |
| for (i = 0; i < wpa_s->num_last_scan_freqs; i++) { |
| enum hostapd_hw_mode mode; |
| u8 op_class, channel; |
| |
| mode = ieee80211_freq_to_channel_ext(wpa_s->last_scan_freqs[i], |
| 0, 0, &op_class, &channel); |
| if (mode == NUM_HOSTAPD_MODES) |
| continue; |
| if (op_class == last_op_class) |
| res = os_snprintf(pos, end - pos, ",%d", channel); |
| else |
| res = os_snprintf(pos, end - pos, "%s%d/%d", |
| pos == str ? "" : ",", |
| op_class, channel); |
| if (os_snprintf_error(end - pos, res)) { |
| *pos = '\0'; |
| break; |
| } |
| pos += res; |
| last_op_class = op_class; |
| } |
| |
| if (pos == str) { |
| os_free(str); |
| str = NULL; |
| } |
| return str; |
| } |
| |
| |
| void wpas_dpp_send_conn_status_result(struct wpa_supplicant *wpa_s, |
| enum dpp_status_error result) |
| { |
| struct wpabuf *msg; |
| const char *channel_list = NULL; |
| char *channel_list_buf = NULL; |
| struct wpa_ssid *ssid = wpa_s->current_ssid; |
| struct dpp_authentication *auth = wpa_s->dpp_auth; |
| |
| eloop_cancel_timeout(wpas_dpp_conn_status_result_timeout, wpa_s, NULL); |
| |
| if (!auth || !auth->conn_status_requested) |
| return; |
| auth->conn_status_requested = 0; |
| wpa_printf(MSG_DEBUG, "DPP: Report connection status result %d", |
| result); |
| |
| if (result == DPP_STATUS_NO_AP) { |
| channel_list_buf = wpas_dpp_scan_channel_list(wpa_s); |
| channel_list = channel_list_buf; |
| } |
| |
| msg = dpp_build_conn_status_result(auth, result, |
| ssid ? ssid->ssid : |
| wpa_s->dpp_last_ssid, |
| ssid ? ssid->ssid_len : |
| wpa_s->dpp_last_ssid_len, |
| channel_list); |
| os_free(channel_list_buf); |
| if (!msg) { |
| dpp_auth_deinit(wpa_s->dpp_auth); |
| wpa_s->dpp_auth = NULL; |
| return; |
| } |
| |
| wpa_msg(wpa_s, MSG_INFO, |
| DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d", |
| MAC2STR(auth->peer_mac_addr), auth->curr_freq, |
| DPP_PA_CONNECTION_STATUS_RESULT); |
| offchannel_send_action(wpa_s, auth->curr_freq, |
| auth->peer_mac_addr, wpa_s->own_addr, broadcast, |
| wpabuf_head(msg), wpabuf_len(msg), |
| 500, wpas_dpp_tx_status, 0); |
| wpabuf_free(msg); |
| |
| /* This exchange will be terminated in the TX status handler */ |
| auth->remove_on_tx_status = 1; |
| |
| return; |
| } |
| |
| |
| void wpas_dpp_connected(struct wpa_supplicant *wpa_s) |
| { |
| struct dpp_authentication *auth = wpa_s->dpp_auth; |
| |
| if (auth && auth->conn_status_requested) |
| wpas_dpp_send_conn_status_result(wpa_s, DPP_STATUS_OK); |
| } |
| |
| #endif /* CONFIG_DPP2 */ |
| |
| |
| static void wpas_dpp_tx_status(struct wpa_supplicant *wpa_s, |
| unsigned int freq, const u8 *dst, |
| const u8 *src, const u8 *bssid, |
| const u8 *data, size_t data_len, |
| enum offchannel_send_action_result result) |
| { |
| const char *res_txt; |
| struct dpp_authentication *auth = wpa_s->dpp_auth; |
| |
| res_txt = result == OFFCHANNEL_SEND_ACTION_SUCCESS ? "SUCCESS" : |
| (result == OFFCHANNEL_SEND_ACTION_NO_ACK ? "no-ACK" : |
| "FAILED"); |
| wpa_printf(MSG_DEBUG, "DPP: TX status: freq=%u dst=" MACSTR |
| " result=%s", freq, MAC2STR(dst), res_txt); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX_STATUS "dst=" MACSTR |
| " freq=%u result=%s", MAC2STR(dst), freq, res_txt); |
| |
| if (!wpa_s->dpp_auth) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Ignore TX status since there is no ongoing authentication exchange"); |
| return; |
| } |
| |
| #ifdef CONFIG_DPP2 |
| if (auth->connect_on_tx_status) { |
| auth->connect_on_tx_status = 0; |
| wpa_printf(MSG_DEBUG, |
| "DPP: Try to connect after completed configuration result"); |
| wpas_dpp_try_to_connect(wpa_s); |
| if (auth->conn_status_requested) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Start 15 second timeout for reporting connection status result"); |
| eloop_cancel_timeout( |
| wpas_dpp_conn_status_result_timeout, |
| wpa_s, NULL); |
| eloop_register_timeout( |
| 15, 0, wpas_dpp_conn_status_result_timeout, |
| wpa_s, NULL); |
| } else { |
| dpp_auth_deinit(wpa_s->dpp_auth); |
| wpa_s->dpp_auth = NULL; |
| } |
| return; |
| } |
| #endif /* CONFIG_DPP2 */ |
| |
| if (wpa_s->dpp_auth->remove_on_tx_status) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Terminate authentication exchange due to a request to do so on TX status"); |
| eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL); |
| eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL); |
| eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s, |
| NULL); |
| offchannel_send_action_done(wpa_s); |
| dpp_auth_deinit(wpa_s->dpp_auth); |
| wpa_s->dpp_auth = NULL; |
| return; |
| } |
| |
| if (wpa_s->dpp_auth_ok_on_ack) |
| wpas_dpp_auth_success(wpa_s, 1); |
| |
| if (!is_broadcast_ether_addr(dst) && |
| result != OFFCHANNEL_SEND_ACTION_SUCCESS) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Unicast DPP Action frame was not ACKed"); |
| if (auth->waiting_auth_resp) { |
| /* In case of DPP Authentication Request frame, move to |
| * the next channel immediately. */ |
| offchannel_send_action_done(wpa_s); |
| wpas_dpp_auth_init_next(wpa_s); |
| return; |
| } |
| if (auth->waiting_auth_conf) { |
| wpas_dpp_auth_resp_retry(wpa_s); |
| return; |
| } |
| } |
| |
| if (!is_broadcast_ether_addr(dst) && auth->waiting_auth_resp && |
| result == OFFCHANNEL_SEND_ACTION_SUCCESS) { |
| /* Allow timeout handling to stop iteration if no response is |
| * received from a peer that has ACKed a request. */ |
| auth->auth_req_ack = 1; |
| } |
| |
| if (!wpa_s->dpp_auth_ok_on_ack && wpa_s->dpp_auth->neg_freq > 0 && |
| wpa_s->dpp_auth->curr_freq != wpa_s->dpp_auth->neg_freq) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Move from curr_freq %u MHz to neg_freq %u MHz for response", |
| wpa_s->dpp_auth->curr_freq, |
| wpa_s->dpp_auth->neg_freq); |
| offchannel_send_action_done(wpa_s); |
| wpas_dpp_listen_start(wpa_s, wpa_s->dpp_auth->neg_freq); |
| } |
| |
| if (wpa_s->dpp_auth_ok_on_ack) |
| wpa_s->dpp_auth_ok_on_ack = 0; |
| } |
| |
| |
| static void wpas_dpp_reply_wait_timeout(void *eloop_ctx, void *timeout_ctx) |
| { |
| struct wpa_supplicant *wpa_s = eloop_ctx; |
| struct dpp_authentication *auth = wpa_s->dpp_auth; |
| unsigned int freq; |
| struct os_reltime now, diff; |
| unsigned int wait_time, diff_ms; |
| |
| if (!auth || !auth->waiting_auth_resp) |
| return; |
| |
| wait_time = wpa_s->dpp_resp_wait_time ? |
| wpa_s->dpp_resp_wait_time : 2000; |
| os_get_reltime(&now); |
| os_reltime_sub(&now, &wpa_s->dpp_last_init, &diff); |
| diff_ms = diff.sec * 1000 + diff.usec / 1000; |
| wpa_printf(MSG_DEBUG, |
| "DPP: Reply wait timeout - wait_time=%u diff_ms=%u", |
| wait_time, diff_ms); |
| |
| if (auth->auth_req_ack && diff_ms >= wait_time) { |
| /* Peer ACK'ed Authentication Request frame, but did not reply |
| * with Authentication Response frame within two seconds. */ |
| wpa_printf(MSG_INFO, |
| "DPP: No response received from responder - stopping initiation attempt"); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_AUTH_INIT_FAILED); |
| wpas_notify_dpp_timeout(wpa_s); |
| offchannel_send_action_done(wpa_s); |
| wpas_dpp_listen_stop(wpa_s); |
| dpp_auth_deinit(auth); |
| wpa_s->dpp_auth = NULL; |
| return; |
| } |
| |
| if (diff_ms >= wait_time) { |
| /* Authentication Request frame was not ACK'ed and no reply |
| * was receiving within two seconds. */ |
| wpa_printf(MSG_DEBUG, |
| "DPP: Continue Initiator channel iteration"); |
| offchannel_send_action_done(wpa_s); |
| wpas_dpp_listen_stop(wpa_s); |
| wpas_dpp_auth_init_next(wpa_s); |
| return; |
| } |
| |
| /* Driver did not support 2000 ms long wait_time with TX command, so |
| * schedule listen operation to continue waiting for the response. |
| * |
| * DPP listen operations continue until stopped, so simply schedule a |
| * new call to this function at the point when the two second reply |
| * wait has expired. */ |
| wait_time -= diff_ms; |
| |
| freq = auth->curr_freq; |
| if (auth->neg_freq > 0) |
| freq = auth->neg_freq; |
| wpa_printf(MSG_DEBUG, |
| "DPP: Continue reply wait on channel %u MHz for %u ms", |
| freq, wait_time); |
| wpa_s->dpp_in_response_listen = 1; |
| wpas_dpp_listen_start(wpa_s, freq); |
| |
| eloop_register_timeout(wait_time / 1000, (wait_time % 1000) * 1000, |
| wpas_dpp_reply_wait_timeout, wpa_s, NULL); |
| } |
| |
| |
| static void wpas_dpp_set_testing_options(struct wpa_supplicant *wpa_s, |
| struct dpp_authentication *auth) |
| { |
| #ifdef CONFIG_TESTING_OPTIONS |
| if (wpa_s->dpp_config_obj_override) |
| auth->config_obj_override = |
| os_strdup(wpa_s->dpp_config_obj_override); |
| if (wpa_s->dpp_discovery_override) |
| auth->discovery_override = |
| os_strdup(wpa_s->dpp_discovery_override); |
| if (wpa_s->dpp_groups_override) |
| auth->groups_override = |
| os_strdup(wpa_s->dpp_groups_override); |
| auth->ignore_netaccesskey_mismatch = |
| wpa_s->dpp_ignore_netaccesskey_mismatch; |
| #endif /* CONFIG_TESTING_OPTIONS */ |
| } |
| |
| |
| static void wpas_dpp_init_timeout(void *eloop_ctx, void *timeout_ctx) |
| { |
| struct wpa_supplicant *wpa_s = eloop_ctx; |
| |
| if (!wpa_s->dpp_auth) |
| return; |
| wpa_printf(MSG_DEBUG, "DPP: Retry initiation after timeout"); |
| wpas_dpp_auth_init_next(wpa_s); |
| } |
| |
| |
| static int wpas_dpp_auth_init_next(struct wpa_supplicant *wpa_s) |
| { |
| struct dpp_authentication *auth = wpa_s->dpp_auth; |
| const u8 *dst; |
| unsigned int wait_time, max_wait_time, freq, max_tries, used; |
| struct os_reltime now, diff; |
| |
| wpa_s->dpp_in_response_listen = 0; |
| if (!auth) |
| return -1; |
| |
| if (auth->freq_idx == 0) |
| os_get_reltime(&wpa_s->dpp_init_iter_start); |
| |
| if (auth->freq_idx >= auth->num_freq) { |
| auth->num_freq_iters++; |
| if (wpa_s->dpp_init_max_tries) |
| max_tries = wpa_s->dpp_init_max_tries; |
| else |
| max_tries = 5; |
| if (auth->num_freq_iters >= max_tries || auth->auth_req_ack) { |
| wpa_printf(MSG_INFO, |
| "DPP: No response received from responder - stopping initiation attempt"); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_AUTH_INIT_FAILED); |
| wpas_notify_dpp_timeout(wpa_s); |
| eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, |
| wpa_s, NULL); |
| offchannel_send_action_done(wpa_s); |
| dpp_auth_deinit(wpa_s->dpp_auth); |
| wpa_s->dpp_auth = NULL; |
| return -1; |
| } |
| auth->freq_idx = 0; |
| eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL); |
| if (wpa_s->dpp_init_retry_time) |
| wait_time = wpa_s->dpp_init_retry_time; |
| else |
| wait_time = 10000; |
| os_get_reltime(&now); |
| os_reltime_sub(&now, &wpa_s->dpp_init_iter_start, &diff); |
| used = diff.sec * 1000 + diff.usec / 1000; |
| if (used > wait_time) |
| wait_time = 0; |
| else |
| wait_time -= used; |
| wpa_printf(MSG_DEBUG, "DPP: Next init attempt in %u ms", |
| wait_time); |
| eloop_register_timeout(wait_time / 1000, |
| (wait_time % 1000) * 1000, |
| wpas_dpp_init_timeout, wpa_s, |
| NULL); |
| return 0; |
| } |
| freq = auth->freq[auth->freq_idx++]; |
| auth->curr_freq = freq; |
| |
| if (is_zero_ether_addr(auth->peer_bi->mac_addr)) |
| dst = broadcast; |
| else |
| dst = auth->peer_bi->mac_addr; |
| wpa_s->dpp_auth_ok_on_ack = 0; |
| eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL); |
| wait_time = wpa_s->max_remain_on_chan; |
| max_wait_time = wpa_s->dpp_resp_wait_time ? |
| wpa_s->dpp_resp_wait_time : 2000; |
| if (wait_time > max_wait_time) |
| wait_time = max_wait_time; |
| wait_time += 10; /* give the driver some extra time to complete */ |
| eloop_register_timeout(wait_time / 1000, (wait_time % 1000) * 1000, |
| wpas_dpp_reply_wait_timeout, |
| wpa_s, NULL); |
| wait_time -= 10; |
| if (auth->neg_freq > 0 && freq != auth->neg_freq) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Initiate on %u MHz and move to neg_freq %u MHz for response", |
| freq, auth->neg_freq); |
| } |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d", |
| MAC2STR(dst), freq, DPP_PA_AUTHENTICATION_REQ); |
| auth->auth_req_ack = 0; |
| os_get_reltime(&wpa_s->dpp_last_init); |
| return offchannel_send_action(wpa_s, freq, dst, |
| wpa_s->own_addr, broadcast, |
| wpabuf_head(auth->req_msg), |
| wpabuf_len(auth->req_msg), |
| wait_time, wpas_dpp_tx_status, 0); |
| } |
| |
| |
| int wpas_dpp_auth_init(struct wpa_supplicant *wpa_s, const char *cmd) |
| { |
| const char *pos; |
| struct dpp_bootstrap_info *peer_bi, *own_bi = NULL; |
| struct dpp_authentication *auth; |
| u8 allowed_roles = DPP_CAPAB_CONFIGURATOR; |
| unsigned int neg_freq = 0; |
| int tcp = 0; |
| #ifdef CONFIG_DPP2 |
| int tcp_port = DPP_TCP_PORT; |
| struct hostapd_ip_addr ipaddr; |
| char *addr; |
| #endif /* CONFIG_DPP2 */ |
| |
| wpa_s->dpp_gas_client = 0; |
| |
| pos = os_strstr(cmd, " peer="); |
| if (!pos) |
| return -1; |
| pos += 6; |
| peer_bi = dpp_bootstrap_get_id(wpa_s->dpp, atoi(pos)); |
| if (!peer_bi) { |
| wpa_printf(MSG_INFO, |
| "DPP: Could not find bootstrapping info for the identified peer"); |
| return -1; |
| } |
| |
| #ifdef CONFIG_DPP2 |
| pos = os_strstr(cmd, " tcp_port="); |
| if (pos) { |
| pos += 10; |
| tcp_port = atoi(pos); |
| } |
| |
| addr = get_param(cmd, " tcp_addr="); |
| if (addr) { |
| int res; |
| |
| res = hostapd_parse_ip_addr(addr, &ipaddr); |
| os_free(addr); |
| if (res) |
| return -1; |
| tcp = 1; |
| } |
| #endif /* CONFIG_DPP2 */ |
| |
| pos = os_strstr(cmd, " own="); |
| if (pos) { |
| pos += 5; |
| own_bi = dpp_bootstrap_get_id(wpa_s->dpp, atoi(pos)); |
| if (!own_bi) { |
| wpa_printf(MSG_INFO, |
| "DPP: Could not find bootstrapping info for the identified local entry"); |
| return -1; |
| } |
| |
| if (peer_bi->curve != own_bi->curve) { |
| wpa_printf(MSG_INFO, |
| "DPP: Mismatching curves in bootstrapping info (peer=%s own=%s)", |
| peer_bi->curve->name, own_bi->curve->name); |
| return -1; |
| } |
| } |
| |
| pos = os_strstr(cmd, " role="); |
| if (pos) { |
| pos += 6; |
| if (os_strncmp(pos, "configurator", 12) == 0) |
| allowed_roles = DPP_CAPAB_CONFIGURATOR; |
| else if (os_strncmp(pos, "enrollee", 8) == 0) |
| allowed_roles = DPP_CAPAB_ENROLLEE; |
| else if (os_strncmp(pos, "either", 6) == 0) |
| allowed_roles = DPP_CAPAB_CONFIGURATOR | |
| DPP_CAPAB_ENROLLEE; |
| else |
| goto fail; |
| } |
| |
| pos = os_strstr(cmd, " netrole="); |
| if (pos) { |
| pos += 9; |
| if (os_strncmp(pos, "ap", 2) == 0) |
| wpa_s->dpp_netrole = DPP_NETROLE_AP; |
| else if (os_strncmp(pos, "configurator", 12) == 0) |
| wpa_s->dpp_netrole = DPP_NETROLE_CONFIGURATOR; |
| else |
| wpa_s->dpp_netrole = DPP_NETROLE_STA; |
| } else { |
| wpa_s->dpp_netrole = DPP_NETROLE_STA; |
| } |
| |
| pos = os_strstr(cmd, " neg_freq="); |
| if (pos) |
| neg_freq = atoi(pos + 10); |
| |
| if (!tcp && wpa_s->dpp_auth) { |
| eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL); |
| eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL); |
| eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s, |
| NULL); |
| offchannel_send_action_done(wpa_s); |
| dpp_auth_deinit(wpa_s->dpp_auth); |
| wpa_s->dpp_auth = NULL; |
| } |
| |
| auth = dpp_auth_init(wpa_s->dpp, wpa_s, peer_bi, own_bi, allowed_roles, |
| neg_freq, wpa_s->hw.modes, wpa_s->hw.num_modes); |
| if (!auth) |
| goto fail; |
| wpas_dpp_set_testing_options(wpa_s, auth); |
| if (dpp_set_configurator(auth, cmd) < 0) { |
| dpp_auth_deinit(auth); |
| goto fail; |
| } |
| |
| auth->neg_freq = neg_freq; |
| |
| if (!is_zero_ether_addr(peer_bi->mac_addr)) |
| os_memcpy(auth->peer_mac_addr, peer_bi->mac_addr, ETH_ALEN); |
| |
| #ifdef CONFIG_DPP2 |
| if (tcp) |
| return dpp_tcp_init(wpa_s->dpp, auth, &ipaddr, tcp_port); |
| #endif /* CONFIG_DPP2 */ |
| |
| wpa_s->dpp_auth = auth; |
| return wpas_dpp_auth_init_next(wpa_s); |
| fail: |
| return -1; |
| } |
| |
| |
| struct wpas_dpp_listen_work { |
| unsigned int freq; |
| unsigned int duration; |
| struct wpabuf *probe_resp_ie; |
| }; |
| |
| |
| static void wpas_dpp_listen_work_free(struct wpas_dpp_listen_work *lwork) |
| { |
| if (!lwork) |
| return; |
| os_free(lwork); |
| } |
| |
| |
| static void wpas_dpp_listen_work_done(struct wpa_supplicant *wpa_s) |
| { |
| struct wpas_dpp_listen_work *lwork; |
| |
| if (!wpa_s->dpp_listen_work) |
| return; |
| |
| lwork = wpa_s->dpp_listen_work->ctx; |
| wpas_dpp_listen_work_free(lwork); |
| radio_work_done(wpa_s->dpp_listen_work); |
| wpa_s->dpp_listen_work = NULL; |
| } |
| |
| |
| static void dpp_start_listen_cb(struct wpa_radio_work *work, int deinit) |
| { |
| struct wpa_supplicant *wpa_s = work->wpa_s; |
| struct wpas_dpp_listen_work *lwork = work->ctx; |
| |
| if (deinit) { |
| if (work->started) { |
| wpa_s->dpp_listen_work = NULL; |
| wpas_dpp_listen_stop(wpa_s); |
| } |
| wpas_dpp_listen_work_free(lwork); |
| return; |
| } |
| |
| wpa_s->dpp_listen_work = work; |
| |
| wpa_s->dpp_pending_listen_freq = lwork->freq; |
| |
| if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, |
| wpa_s->max_remain_on_chan) < 0) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Failed to request the driver to remain on channel (%u MHz) for listen", |
| lwork->freq); |
| wpa_s->dpp_listen_freq = 0; |
| wpas_dpp_listen_work_done(wpa_s); |
| wpa_s->dpp_pending_listen_freq = 0; |
| return; |
| } |
| wpa_s->off_channel_freq = 0; |
| wpa_s->roc_waiting_drv_freq = lwork->freq; |
| wpa_drv_dpp_listen(wpa_s, true); |
| } |
| |
| |
| static int wpas_dpp_listen_start(struct wpa_supplicant *wpa_s, |
| unsigned int freq) |
| { |
| struct wpas_dpp_listen_work *lwork; |
| |
| if (wpa_s->dpp_listen_work) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Reject start_listen since dpp_listen_work already exists"); |
| return -1; |
| } |
| |
| if (wpa_s->dpp_listen_freq) |
| wpas_dpp_listen_stop(wpa_s); |
| wpa_s->dpp_listen_freq = freq; |
| |
| lwork = os_zalloc(sizeof(*lwork)); |
| if (!lwork) |
| return -1; |
| lwork->freq = freq; |
| |
| if (radio_add_work(wpa_s, freq, "dpp-listen", 0, dpp_start_listen_cb, |
| lwork) < 0) { |
| wpas_dpp_listen_work_free(lwork); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| |
| int wpas_dpp_listen(struct wpa_supplicant *wpa_s, const char *cmd) |
| { |
| int freq; |
| |
| freq = atoi(cmd); |
| if (freq <= 0) |
| return -1; |
| |
| if (os_strstr(cmd, " role=configurator")) |
| wpa_s->dpp_allowed_roles = DPP_CAPAB_CONFIGURATOR; |
| else if (os_strstr(cmd, " role=enrollee")) |
| wpa_s->dpp_allowed_roles = DPP_CAPAB_ENROLLEE; |
| else |
| wpa_s->dpp_allowed_roles = DPP_CAPAB_CONFIGURATOR | |
| DPP_CAPAB_ENROLLEE; |
| wpa_s->dpp_qr_mutual = os_strstr(cmd, " qr=mutual") != NULL; |
| if (os_strstr(cmd, " netrole=ap")) |
| wpa_s->dpp_netrole = DPP_NETROLE_AP; |
| else if (os_strstr(cmd, " netrole=configurator")) |
| wpa_s->dpp_netrole = DPP_NETROLE_CONFIGURATOR; |
| else |
| wpa_s->dpp_netrole = DPP_NETROLE_STA; |
| if (wpa_s->dpp_listen_freq == (unsigned int) freq) { |
| wpa_printf(MSG_DEBUG, "DPP: Already listening on %u MHz", |
| freq); |
| return 0; |
| } |
| |
| return wpas_dpp_listen_start(wpa_s, freq); |
| } |
| |
| |
| void wpas_dpp_listen_stop(struct wpa_supplicant *wpa_s) |
| { |
| wpa_s->dpp_in_response_listen = 0; |
| if (!wpa_s->dpp_listen_freq) |
| return; |
| |
| wpa_printf(MSG_DEBUG, "DPP: Stop listen on %u MHz", |
| wpa_s->dpp_listen_freq); |
| wpa_drv_cancel_remain_on_channel(wpa_s); |
| wpa_drv_dpp_listen(wpa_s, false); |
| wpa_s->dpp_listen_freq = 0; |
| wpas_dpp_listen_work_done(wpa_s); |
| } |
| |
| |
| void wpas_dpp_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s, |
| unsigned int freq) |
| { |
| wpas_dpp_listen_work_done(wpa_s); |
| |
| if (wpa_s->dpp_auth && wpa_s->dpp_in_response_listen) { |
| unsigned int new_freq; |
| |
| /* Continue listen with a new remain-on-channel */ |
| if (wpa_s->dpp_auth->neg_freq > 0) |
| new_freq = wpa_s->dpp_auth->neg_freq; |
| else |
| new_freq = wpa_s->dpp_auth->curr_freq; |
| wpa_printf(MSG_DEBUG, |
| "DPP: Continue wait on %u MHz for the ongoing DPP provisioning session", |
| new_freq); |
| wpas_dpp_listen_start(wpa_s, new_freq); |
| return; |
| } |
| |
| if (wpa_s->dpp_listen_freq) { |
| /* Continue listen with a new remain-on-channel */ |
| wpas_dpp_listen_start(wpa_s, wpa_s->dpp_listen_freq); |
| } |
| } |
| |
| |
| static void wpas_dpp_rx_auth_req(struct wpa_supplicant *wpa_s, const u8 *src, |
| const u8 *hdr, const u8 *buf, size_t len, |
| unsigned int freq) |
| { |
| const u8 *r_bootstrap, *i_bootstrap; |
| u16 r_bootstrap_len, i_bootstrap_len; |
| struct dpp_bootstrap_info *own_bi = NULL, *peer_bi = NULL; |
| |
| if (!wpa_s->dpp) |
| return; |
| |
| wpa_printf(MSG_DEBUG, "DPP: Authentication Request from " MACSTR, |
| MAC2STR(src)); |
| |
| #ifdef CONFIG_DPP2 |
| wpas_dpp_chirp_stop(wpa_s); |
| #endif /* CONFIG_DPP2 */ |
| |
| r_bootstrap = dpp_get_attr(buf, len, DPP_ATTR_R_BOOTSTRAP_KEY_HASH, |
| &r_bootstrap_len); |
| if (!r_bootstrap || r_bootstrap_len != SHA256_MAC_LEN) { |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL |
| "Missing or invalid required Responder Bootstrapping Key Hash attribute"); |
| return; |
| } |
| wpa_hexdump(MSG_MSGDUMP, "DPP: Responder Bootstrapping Key Hash", |
| r_bootstrap, r_bootstrap_len); |
| |
| i_bootstrap = dpp_get_attr(buf, len, DPP_ATTR_I_BOOTSTRAP_KEY_HASH, |
| &i_bootstrap_len); |
| if (!i_bootstrap || i_bootstrap_len != SHA256_MAC_LEN) { |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL |
| "Missing or invalid required Initiator Bootstrapping Key Hash attribute"); |
| return; |
| } |
| wpa_hexdump(MSG_MSGDUMP, "DPP: Initiator Bootstrapping Key Hash", |
| i_bootstrap, i_bootstrap_len); |
| |
| /* Try to find own and peer bootstrapping key matches based on the |
| * received hash values */ |
| dpp_bootstrap_find_pair(wpa_s->dpp, i_bootstrap, r_bootstrap, |
| &own_bi, &peer_bi); |
| if (!own_bi) { |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL |
| "No matching own bootstrapping key found - ignore message"); |
| return; |
| } |
| |
| if (wpa_s->dpp_auth) { |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL |
| "Already in DPP authentication exchange - ignore new one"); |
| return; |
| } |
| |
| wpa_s->dpp_gas_client = 0; |
| wpa_s->dpp_auth_ok_on_ack = 0; |
| wpa_s->dpp_auth = dpp_auth_req_rx(wpa_s->dpp, wpa_s, |
| wpa_s->dpp_allowed_roles, |
| wpa_s->dpp_qr_mutual, |
| peer_bi, own_bi, freq, hdr, buf, len); |
| if (!wpa_s->dpp_auth) { |
| wpa_printf(MSG_DEBUG, "DPP: No response generated"); |
| return; |
| } |
| wpas_dpp_set_testing_options(wpa_s, wpa_s->dpp_auth); |
| if (dpp_set_configurator(wpa_s->dpp_auth, |
| wpa_s->dpp_configurator_params) < 0) { |
| dpp_auth_deinit(wpa_s->dpp_auth); |
| wpa_s->dpp_auth = NULL; |
| return; |
| } |
| os_memcpy(wpa_s->dpp_auth->peer_mac_addr, src, ETH_ALEN); |
| |
| if (wpa_s->dpp_listen_freq && |
| wpa_s->dpp_listen_freq != wpa_s->dpp_auth->curr_freq) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Stop listen on %u MHz to allow response on the request %u MHz", |
| wpa_s->dpp_listen_freq, wpa_s->dpp_auth->curr_freq); |
| wpas_dpp_listen_stop(wpa_s); |
| } |
| |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d", |
| MAC2STR(src), wpa_s->dpp_auth->curr_freq, |
| DPP_PA_AUTHENTICATION_RESP); |
| offchannel_send_action(wpa_s, wpa_s->dpp_auth->curr_freq, |
| src, wpa_s->own_addr, broadcast, |
| wpabuf_head(wpa_s->dpp_auth->resp_msg), |
| wpabuf_len(wpa_s->dpp_auth->resp_msg), |
| 500, wpas_dpp_tx_status, 0); |
| } |
| |
| |
| static void wpas_dpp_start_gas_server(struct wpa_supplicant *wpa_s) |
| { |
| /* TODO: stop wait and start ROC */ |
| } |
| |
| |
| static struct wpa_ssid * wpas_dpp_add_network(struct wpa_supplicant *wpa_s, |
| struct dpp_authentication *auth, |
| struct dpp_config_obj *conf) |
| { |
| struct wpa_ssid *ssid; |
| |
| #ifdef CONFIG_DPP2 |
| if (conf->akm == DPP_AKM_SAE) { |
| #ifdef CONFIG_SAE |
| struct wpa_driver_capa capa; |
| int res; |
| |
| res = wpa_drv_get_capa(wpa_s, &capa); |
| if (res == 0 && |
| !(capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_SAE) && |
| !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SAE)) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: SAE not supported by the driver"); |
| return NULL; |
| } |
| #else /* CONFIG_SAE */ |
| wpa_printf(MSG_DEBUG, "DPP: SAE not supported in the build"); |
| return NULL; |
| #endif /* CONFIG_SAE */ |
| } |
| #endif /* CONFIG_DPP2 */ |
| |
| ssid = wpa_config_add_network(wpa_s->conf); |
| if (!ssid) |
| return NULL; |
| wpas_notify_network_added(wpa_s, ssid); |
| wpa_config_set_network_defaults(ssid); |
| ssid->disabled = 1; |
| |
| ssid->ssid = os_malloc(conf->ssid_len); |
| if (!ssid->ssid) |
| goto fail; |
| os_memcpy(ssid->ssid, conf->ssid, conf->ssid_len); |
| ssid->ssid_len = conf->ssid_len; |
| |
| if (conf->connector) { |
| if (dpp_akm_dpp(conf->akm)) { |
| ssid->key_mgmt = WPA_KEY_MGMT_DPP; |
| ssid->ieee80211w = MGMT_FRAME_PROTECTION_REQUIRED; |
| } |
| ssid->dpp_connector = os_strdup(conf->connector); |
| if (!ssid->dpp_connector) |
| goto fail; |
| } |
| |
| if (conf->c_sign_key) { |
| ssid->dpp_csign = os_malloc(wpabuf_len(conf->c_sign_key)); |
| if (!ssid->dpp_csign) |
| goto fail; |
| os_memcpy(ssid->dpp_csign, wpabuf_head(conf->c_sign_key), |
| wpabuf_len(conf->c_sign_key)); |
| ssid->dpp_csign_len = wpabuf_len(conf->c_sign_key); |
| } |
| |
| if (auth->net_access_key) { |
| ssid->dpp_netaccesskey = |
| os_malloc(wpabuf_len(auth->net_access_key)); |
| if (!ssid->dpp_netaccesskey) |
| goto fail; |
| os_memcpy(ssid->dpp_netaccesskey, |
| wpabuf_head(auth->net_access_key), |
| wpabuf_len(auth->net_access_key)); |
| ssid->dpp_netaccesskey_len = wpabuf_len(auth->net_access_key); |
| ssid->dpp_netaccesskey_expiry = auth->net_access_key_expiry; |
| } |
| |
| if (!conf->connector || dpp_akm_psk(conf->akm) || |
| dpp_akm_sae(conf->akm)) { |
| if (!conf->connector || !dpp_akm_dpp(conf->akm)) |
| ssid->key_mgmt = 0; |
| if (dpp_akm_psk(conf->akm)) |
| ssid->key_mgmt |= WPA_KEY_MGMT_PSK | |
| WPA_KEY_MGMT_PSK_SHA256 | WPA_KEY_MGMT_FT_PSK; |
| if (dpp_akm_sae(conf->akm)) |
| ssid->key_mgmt |= WPA_KEY_MGMT_SAE | |
| WPA_KEY_MGMT_FT_SAE; |
| ssid->ieee80211w = MGMT_FRAME_PROTECTION_OPTIONAL; |
| if (conf->passphrase[0]) { |
| if (wpa_config_set_quoted(ssid, "psk", |
| conf->passphrase) < 0) |
| goto fail; |
| wpa_config_update_psk(ssid); |
| ssid->export_keys = 1; |
| } else { |
| ssid->psk_set = conf->psk_set; |
| os_memcpy(ssid->psk, conf->psk, PMK_LEN); |
| } |
| } |
| |
| os_memcpy(wpa_s->dpp_last_ssid, conf->ssid, conf->ssid_len); |
| wpa_s->dpp_last_ssid_len = conf->ssid_len; |
| |
| return ssid; |
| fail: |
| wpas_notify_network_removed(wpa_s, ssid); |
| wpa_config_remove_network(wpa_s->conf, ssid->id); |
| return NULL; |
| } |
| |
| |
| static int wpas_dpp_process_config(struct wpa_supplicant *wpa_s, |
| struct dpp_authentication *auth, |
| struct dpp_config_obj *conf) |
| { |
| struct wpa_ssid *ssid; |
| |
| if (wpa_s->conf->dpp_config_processing < 1) |
| return 0; |
| |
| ssid = wpas_dpp_add_network(wpa_s, auth, conf); |
| if (!ssid) |
| return -1; |
| |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_NETWORK_ID "%d", ssid->id); |
| |
| wpas_notify_dpp_config_received(wpa_s, ssid); |
| |
| if (wpa_s->conf->dpp_config_processing == 2) |
| ssid->disabled = 0; |
| |
| #ifndef CONFIG_NO_CONFIG_WRITE |
| if (wpa_s->conf->update_config && |
| wpa_config_write(wpa_s->confname, wpa_s->conf)) |
| wpa_printf(MSG_DEBUG, "DPP: Failed to update configuration"); |
| #endif /* CONFIG_NO_CONFIG_WRITE */ |
| |
| return 0; |
| } |
| |
| |
| static void wpas_dpp_post_process_config(struct wpa_supplicant *wpa_s, |
| struct dpp_authentication *auth) |
| { |
| if (wpa_s->conf->dpp_config_processing < 2) |
| return; |
| |
| #ifdef CONFIG_DPP2 |
| if (auth->peer_version >= 2) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Postpone connection attempt to wait for completion of DPP Configuration Result"); |
| auth->connect_on_tx_status = 1; |
| return; |
| } |
| #endif /* CONFIG_DPP2 */ |
| |
| wpas_dpp_try_to_connect(wpa_s); |
| } |
| |
| |
| static int wpas_dpp_handle_config_obj(struct wpa_supplicant *wpa_s, |
| struct dpp_authentication *auth, |
| struct dpp_config_obj *conf) |
| { |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_RECEIVED); |
| if (conf->ssid_len) |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONFOBJ_SSID "%s", |
| wpa_ssid_txt(conf->ssid, conf->ssid_len)); |
| if (conf->ssid_charset) |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONFOBJ_SSID_CHARSET "%d", |
| conf->ssid_charset); |
| if (conf->connector) { |
| /* TODO: Save the Connector and consider using a command |
| * to fetch the value instead of sending an event with |
| * it. The Connector could end up being larger than what |
| * most clients are ready to receive as an event |
| * message. */ |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONNECTOR "%s", |
| conf->connector); |
| } |
| if (conf->c_sign_key) { |
| char *hex; |
| size_t hexlen; |
| |
| hexlen = 2 * wpabuf_len(conf->c_sign_key) + 1; |
| hex = os_malloc(hexlen); |
| if (hex) { |
| wpa_snprintf_hex(hex, hexlen, |
| wpabuf_head(conf->c_sign_key), |
| wpabuf_len(conf->c_sign_key)); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_C_SIGN_KEY "%s", |
| hex); |
| os_free(hex); |
| } |
| } |
| if (auth->net_access_key) { |
| char *hex; |
| size_t hexlen; |
| |
| hexlen = 2 * wpabuf_len(auth->net_access_key) + 1; |
| hex = os_malloc(hexlen); |
| if (hex) { |
| wpa_snprintf_hex(hex, hexlen, |
| wpabuf_head(auth->net_access_key), |
| wpabuf_len(auth->net_access_key)); |
| if (auth->net_access_key_expiry) |
| wpa_msg(wpa_s, MSG_INFO, |
| DPP_EVENT_NET_ACCESS_KEY "%s %lu", hex, |
| (long unsigned) |
| auth->net_access_key_expiry); |
| else |
| wpa_msg(wpa_s, MSG_INFO, |
| DPP_EVENT_NET_ACCESS_KEY "%s", hex); |
| os_free(hex); |
| } |
| } |
| |
| return wpas_dpp_process_config(wpa_s, auth, conf); |
| } |
| |
| |
| static int wpas_dpp_handle_key_pkg(struct wpa_supplicant *wpa_s, |
| struct dpp_asymmetric_key *key) |
| { |
| #ifdef CONFIG_DPP2 |
| int res; |
| |
| if (!key) |
| return 0; |
| |
| wpa_printf(MSG_DEBUG, "DPP: Received Configurator backup"); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_RECEIVED); |
| |
| while (key) { |
| res = dpp_configurator_from_backup(wpa_s->dpp, key); |
| if (res < 0) |
| return -1; |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONFIGURATOR_ID "%d", |
| res); |
| key = key->next; |
| } |
| #endif /* CONFIG_DPP2 */ |
| |
| return 0; |
| } |
| |
| |
| static void wpas_dpp_gas_resp_cb(void *ctx, const u8 *addr, u8 dialog_token, |
| enum gas_query_result result, |
| const struct wpabuf *adv_proto, |
| const struct wpabuf *resp, u16 status_code) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| const u8 *pos; |
| struct dpp_authentication *auth = wpa_s->dpp_auth; |
| int res; |
| enum dpp_status_error status = DPP_STATUS_CONFIG_REJECTED; |
| unsigned int i; |
| |
| wpa_s->dpp_gas_dialog_token = -1; |
| |
| if (!auth || !auth->auth_success) { |
| wpa_printf(MSG_DEBUG, "DPP: No matching exchange in progress"); |
| return; |
| } |
| if (result != GAS_QUERY_SUCCESS || |
| !resp || status_code != WLAN_STATUS_SUCCESS) { |
| wpa_printf(MSG_DEBUG, "DPP: GAS query did not succeed"); |
| goto fail; |
| } |
| |
| wpa_hexdump_buf(MSG_DEBUG, "DPP: Configuration Response adv_proto", |
| adv_proto); |
| wpa_hexdump_buf(MSG_DEBUG, "DPP: Configuration Response (GAS response)", |
| resp); |
| |
| if (wpabuf_len(adv_proto) != 10 || |
| !(pos = wpabuf_head(adv_proto)) || |
| pos[0] != WLAN_EID_ADV_PROTO || |
| pos[1] != 8 || |
| pos[3] != WLAN_EID_VENDOR_SPECIFIC || |
| pos[4] != 5 || |
| WPA_GET_BE24(&pos[5]) != OUI_WFA || |
| pos[8] != 0x1a || |
| pos[9] != 1) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Not a DPP Advertisement Protocol ID"); |
| goto fail; |
| } |
| |
| if (dpp_conf_resp_rx(auth, resp) < 0) { |
| wpa_printf(MSG_DEBUG, "DPP: Configuration attempt failed"); |
| goto fail; |
| } |
| |
| for (i = 0; i < auth->num_conf_obj; i++) { |
| res = wpas_dpp_handle_config_obj(wpa_s, auth, |
| &auth->conf_obj[i]); |
| if (res < 0) |
| goto fail; |
| } |
| if (auth->num_conf_obj) |
| wpas_dpp_post_process_config(wpa_s, auth); |
| if (wpas_dpp_handle_key_pkg(wpa_s, auth->conf_key_pkg) < 0) |
| goto fail; |
| |
| status = DPP_STATUS_OK; |
| #ifdef CONFIG_TESTING_OPTIONS |
| if (dpp_test == DPP_TEST_REJECT_CONFIG) { |
| wpa_printf(MSG_INFO, "DPP: TESTING - Reject Config Object"); |
| status = DPP_STATUS_CONFIG_REJECTED; |
| } |
| #endif /* CONFIG_TESTING_OPTIONS */ |
| fail: |
| if (status != DPP_STATUS_OK) { |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED); |
| wpas_notify_dpp_configuration_failure(wpa_s); |
| } |
| #ifdef CONFIG_DPP2 |
| if (auth->peer_version >= 2 && |
| auth->conf_resp_status == DPP_STATUS_OK) { |
| struct wpabuf *msg; |
| |
| wpa_printf(MSG_DEBUG, "DPP: Send DPP Configuration Result"); |
| msg = dpp_build_conf_result(auth, status); |
| if (!msg) |
| goto fail2; |
| |
| wpa_msg(wpa_s, MSG_INFO, |
| DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d", |
| MAC2STR(addr), auth->curr_freq, |
| DPP_PA_CONFIGURATION_RESULT); |
| offchannel_send_action(wpa_s, auth->curr_freq, |
| addr, wpa_s->own_addr, broadcast, |
| wpabuf_head(msg), |
| wpabuf_len(msg), |
| 500, wpas_dpp_tx_status, 0); |
| wpabuf_free(msg); |
| |
| /* This exchange will be terminated in the TX status handler */ |
| return; |
| } |
| fail2: |
| #endif /* CONFIG_DPP2 */ |
| dpp_auth_deinit(wpa_s->dpp_auth); |
| wpa_s->dpp_auth = NULL; |
| } |
| |
| |
| static void wpas_dpp_start_gas_client(struct wpa_supplicant *wpa_s) |
| { |
| struct dpp_authentication *auth = wpa_s->dpp_auth; |
| struct wpabuf *buf; |
| int res; |
| int *supp_op_classes; |
| |
| wpa_s->dpp_gas_client = 1; |
| offchannel_send_action_done(wpa_s); |
| wpas_dpp_listen_stop(wpa_s); |
| |
| supp_op_classes = wpas_supp_op_classes(wpa_s); |
| buf = dpp_build_conf_req_helper(auth, wpa_s->conf->dpp_name, |
| wpa_s->dpp_netrole, |
| wpa_s->conf->dpp_mud_url, |
| supp_op_classes); |
| os_free(supp_op_classes); |
| if (!buf) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: No configuration request data available"); |
| return; |
| } |
| |
| wpa_printf(MSG_DEBUG, "DPP: GAS request to " MACSTR " (freq %u MHz)", |
| MAC2STR(auth->peer_mac_addr), auth->curr_freq); |
| |
| res = gas_query_req(wpa_s->gas, auth->peer_mac_addr, auth->curr_freq, |
| 1, 1, buf, wpas_dpp_gas_resp_cb, wpa_s); |
| if (res < 0) { |
| wpa_msg(wpa_s, MSG_DEBUG, "GAS: Failed to send Query Request"); |
| wpabuf_free(buf); |
| } else { |
| wpa_printf(MSG_DEBUG, |
| "DPP: GAS query started with dialog token %u", res); |
| wpa_s->dpp_gas_dialog_token = res; |
| } |
| } |
| |
| |
| static void wpas_dpp_auth_success(struct wpa_supplicant *wpa_s, int initiator) |
| { |
| wpa_printf(MSG_DEBUG, "DPP: Authentication succeeded"); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_AUTH_SUCCESS "init=%d", initiator); |
| wpas_notify_dpp_auth_success(wpa_s); |
| #ifdef CONFIG_TESTING_OPTIONS |
| if (dpp_test == DPP_TEST_STOP_AT_AUTH_CONF) { |
| wpa_printf(MSG_INFO, |
| "DPP: TESTING - stop at Authentication Confirm"); |
| if (wpa_s->dpp_auth->configurator) { |
| /* Prevent GAS response */ |
| wpa_s->dpp_auth->auth_success = 0; |
| } |
| return; |
| } |
| #endif /* CONFIG_TESTING_OPTIONS */ |
| |
| if (wpa_s->dpp_auth->configurator) |
| wpas_dpp_start_gas_server(wpa_s); |
| else |
| wpas_dpp_start_gas_client(wpa_s); |
| } |
| |
| |
| static void wpas_dpp_rx_auth_resp(struct wpa_supplicant *wpa_s, const u8 *src, |
| const u8 *hdr, const u8 *buf, size_t len, |
| unsigned int freq) |
| { |
| struct dpp_authentication *auth = wpa_s->dpp_auth; |
| struct wpabuf *msg; |
| |
| wpa_printf(MSG_DEBUG, "DPP: Authentication Response from " MACSTR |
| " (freq %u MHz)", MAC2STR(src), freq); |
| |
| if (!auth) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: No DPP Authentication in progress - drop"); |
| return; |
| } |
| |
| if (!is_zero_ether_addr(auth->peer_mac_addr) && |
| os_memcmp(src, auth->peer_mac_addr, ETH_ALEN) != 0) { |
| wpa_printf(MSG_DEBUG, "DPP: MAC address mismatch (expected " |
| MACSTR ") - drop", MAC2STR(auth->peer_mac_addr)); |
| return; |
| } |
| |
| eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL); |
| |
| if (auth->curr_freq != freq && auth->neg_freq == freq) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Responder accepted request for different negotiation channel"); |
| auth->curr_freq = freq; |
| } |
| |
| eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL); |
| msg = dpp_auth_resp_rx(auth, hdr, buf, len); |
| if (!msg) { |
| if (auth->auth_resp_status == DPP_STATUS_RESPONSE_PENDING) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Start wait for full response"); |
| wpas_notify_dpp_resp_pending(wpa_s); |
| offchannel_send_action_done(wpa_s); |
| wpas_dpp_listen_start(wpa_s, auth->curr_freq); |
| return; |
| } |
| wpa_printf(MSG_DEBUG, "DPP: No confirm generated"); |
| return; |
| } |
| os_memcpy(auth->peer_mac_addr, src, ETH_ALEN); |
| |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d", |
| MAC2STR(src), auth->curr_freq, DPP_PA_AUTHENTICATION_CONF); |
| offchannel_send_action(wpa_s, auth->curr_freq, |
| src, wpa_s->own_addr, broadcast, |
| wpabuf_head(msg), wpabuf_len(msg), |
| 500, wpas_dpp_tx_status, 0); |
| wpabuf_free(msg); |
| wpa_s->dpp_auth_ok_on_ack = 1; |
| } |
| |
| |
| static void wpas_dpp_rx_auth_conf(struct wpa_supplicant *wpa_s, const u8 *src, |
| const u8 *hdr, const u8 *buf, size_t len) |
| { |
| struct dpp_authentication *auth = wpa_s->dpp_auth; |
| |
| wpa_printf(MSG_DEBUG, "DPP: Authentication Confirmation from " MACSTR, |
| MAC2STR(src)); |
| |
| if (!auth) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: No DPP Authentication in progress - drop"); |
| return; |
| } |
| |
| if (os_memcmp(src, auth->peer_mac_addr, ETH_ALEN) != 0) { |
| wpa_printf(MSG_DEBUG, "DPP: MAC address mismatch (expected " |
| MACSTR ") - drop", MAC2STR(auth->peer_mac_addr)); |
| return; |
| } |
| |
| if (dpp_auth_conf_rx(auth, hdr, buf, len) < 0) { |
| wpa_printf(MSG_DEBUG, "DPP: Authentication failed"); |
| wpas_notify_dpp_auth_failure(wpa_s); |
| return; |
| } |
| |
| wpas_dpp_auth_success(wpa_s, 0); |
| } |
| |
| |
| #ifdef CONFIG_DPP2 |
| |
| static void wpas_dpp_config_result_wait_timeout(void *eloop_ctx, |
| void *timeout_ctx) |
| { |
| struct wpa_supplicant *wpa_s = eloop_ctx; |
| struct dpp_authentication *auth = wpa_s->dpp_auth; |
| |
| if (!auth || !auth->waiting_conf_result) |
| return; |
| |
| wpa_printf(MSG_DEBUG, |
| "DPP: Timeout while waiting for Configuration Result"); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED); |
| wpas_notify_dpp_configuration_failure(wpa_s); |
| dpp_auth_deinit(auth); |
| wpa_s->dpp_auth = NULL; |
| } |
| |
| |
| static void wpas_dpp_conn_status_result_wait_timeout(void *eloop_ctx, |
| void *timeout_ctx) |
| { |
| struct wpa_supplicant *wpa_s = eloop_ctx; |
| struct dpp_authentication *auth = wpa_s->dpp_auth; |
| |
| if (!auth || !auth->waiting_conn_status_result) |
| return; |
| |
| wpa_printf(MSG_DEBUG, |
| "DPP: Timeout while waiting for Connection Status Result"); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONN_STATUS_RESULT "timeout"); |
| wpas_notify_dpp_timeout(wpa_s); |
| wpas_dpp_listen_stop(wpa_s); |
| dpp_auth_deinit(auth); |
| wpa_s->dpp_auth = NULL; |
| } |
| |
| |
| static void wpas_dpp_rx_conf_result(struct wpa_supplicant *wpa_s, const u8 *src, |
| const u8 *hdr, const u8 *buf, size_t len) |
| { |
| struct dpp_authentication *auth = wpa_s->dpp_auth; |
| enum dpp_status_error status; |
| |
| wpa_printf(MSG_DEBUG, "DPP: Configuration Result from " MACSTR, |
| MAC2STR(src)); |
| |
| if (!auth || !auth->waiting_conf_result) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: No DPP Configuration waiting for result - drop"); |
| return; |
| } |
| |
| if (os_memcmp(src, auth->peer_mac_addr, ETH_ALEN) != 0) { |
| wpa_printf(MSG_DEBUG, "DPP: MAC address mismatch (expected " |
| MACSTR ") - drop", MAC2STR(auth->peer_mac_addr)); |
| return; |
| } |
| |
| status = dpp_conf_result_rx(auth, hdr, buf, len); |
| |
| if (status == DPP_STATUS_OK && auth->send_conn_status) { |
| wpa_msg(wpa_s, MSG_INFO, |
| DPP_EVENT_CONF_SENT "wait_conn_status=1"); |
| wpa_printf(MSG_DEBUG, "DPP: Wait for Connection Status Result"); |
| wpas_notify_dpp_config_accepted(wpa_s); |
| eloop_cancel_timeout(wpas_dpp_config_result_wait_timeout, |
| wpa_s, NULL); |
| auth->waiting_conn_status_result = 1; |
| eloop_cancel_timeout(wpas_dpp_conn_status_result_wait_timeout, |
| wpa_s, NULL); |
| eloop_register_timeout(16, 0, |
| wpas_dpp_conn_status_result_wait_timeout, |
| wpa_s, NULL); |
| offchannel_send_action_done(wpa_s); |
| wpas_dpp_listen_start(wpa_s, auth->neg_freq ? auth->neg_freq : |
| auth->curr_freq); |
| return; |
| } |
| offchannel_send_action_done(wpa_s); |
| wpas_dpp_listen_stop(wpa_s); |
| if (status == DPP_STATUS_OK) { |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_SENT); |
| wpas_notify_dpp_config_sent(wpa_s); |
| } |
| else { |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED); |
| wpas_notify_dpp_config_rejected(wpa_s); |
| } |
| dpp_auth_deinit(auth); |
| wpa_s->dpp_auth = NULL; |
| eloop_cancel_timeout(wpas_dpp_config_result_wait_timeout, wpa_s, NULL); |
| } |
| |
| |
| static void wpas_dpp_rx_conn_status_result(struct wpa_supplicant *wpa_s, |
| const u8 *src, const u8 *hdr, |
| const u8 *buf, size_t len) |
| { |
| struct dpp_authentication *auth = wpa_s->dpp_auth; |
| enum dpp_status_error status; |
| u8 ssid[SSID_MAX_LEN]; |
| size_t ssid_len = 0; |
| char *channel_list = NULL; |
| |
| wpa_printf(MSG_DEBUG, "DPP: Connection Status Result"); |
| |
| if (!auth || !auth->waiting_conn_status_result) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: No DPP Configuration waiting for connection status result - drop"); |
| return; |
| } |
| |
| status = dpp_conn_status_result_rx(auth, hdr, buf, len, |
| ssid, &ssid_len, &channel_list); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONN_STATUS_RESULT |
| "result=%d ssid=%s channel_list=%s", |
| status, wpa_ssid_txt(ssid, ssid_len), |
| channel_list ? channel_list : "N/A"); |
| wpas_notify_dpp_conn_status(wpa_s, status, wpa_ssid_txt(ssid, ssid_len), |
| channel_list, auth->band_list, auth->band_list_size); |
| os_free(channel_list); |
| offchannel_send_action_done(wpa_s); |
| wpas_dpp_listen_stop(wpa_s); |
| dpp_auth_deinit(auth); |
| wpa_s->dpp_auth = NULL; |
| eloop_cancel_timeout(wpas_dpp_conn_status_result_wait_timeout, |
| wpa_s, NULL); |
| } |
| |
| |
| static int wpas_dpp_process_conf_obj(void *ctx, |
| struct dpp_authentication *auth) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| unsigned int i; |
| int res = -1; |
| |
| for (i = 0; i < auth->num_conf_obj; i++) { |
| res = wpas_dpp_handle_config_obj(wpa_s, auth, |
| &auth->conf_obj[i]); |
| if (res) |
| break; |
| } |
| if (!res) |
| wpas_dpp_post_process_config(wpa_s, auth); |
| |
| return res; |
| } |
| |
| |
| static void wpas_dpp_remove_bi(void *ctx, struct dpp_bootstrap_info *bi) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| |
| if (bi == wpa_s->dpp_chirp_bi) |
| wpas_dpp_chirp_stop(wpa_s); |
| } |
| |
| |
| static void |
| wpas_dpp_rx_presence_announcement(struct wpa_supplicant *wpa_s, const u8 *src, |
| const u8 *hdr, const u8 *buf, size_t len, |
| unsigned int freq) |
| { |
| const u8 *r_bootstrap; |
| u16 r_bootstrap_len; |
| struct dpp_bootstrap_info *peer_bi; |
| struct dpp_authentication *auth; |
| |
| if (!wpa_s->dpp) |
| return; |
| |
| if (wpa_s->dpp_auth) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Ignore Presence Announcement during ongoing Authentication"); |
| return; |
| } |
| |
| wpa_printf(MSG_DEBUG, "DPP: Presence Announcement from " MACSTR, |
| MAC2STR(src)); |
| |
| r_bootstrap = dpp_get_attr(buf, len, DPP_ATTR_R_BOOTSTRAP_KEY_HASH, |
| &r_bootstrap_len); |
| if (!r_bootstrap || r_bootstrap_len != SHA256_MAC_LEN) { |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL |
| "Missing or invalid required Responder Bootstrapping Key Hash attribute"); |
| return; |
| } |
| wpa_hexdump(MSG_MSGDUMP, "DPP: Responder Bootstrapping Key Hash", |
| r_bootstrap, r_bootstrap_len); |
| peer_bi = dpp_bootstrap_find_chirp(wpa_s->dpp, r_bootstrap); |
| if (!peer_bi) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: No matching bootstrapping information found"); |
| return; |
| } |
| |
| auth = dpp_auth_init(wpa_s->dpp, wpa_s, peer_bi, NULL, |
| DPP_CAPAB_CONFIGURATOR, freq, NULL, 0); |
| if (!auth) |
| return; |
| wpas_dpp_set_testing_options(wpa_s, auth); |
| if (dpp_set_configurator(auth, wpa_s->dpp_configurator_params) < 0) { |
| dpp_auth_deinit(auth); |
| return; |
| } |
| |
| auth->neg_freq = freq; |
| |
| if (!is_zero_ether_addr(peer_bi->mac_addr)) |
| os_memcpy(auth->peer_mac_addr, peer_bi->mac_addr, ETH_ALEN); |
| |
| wpa_s->dpp_auth = auth; |
| if (wpas_dpp_auth_init_next(wpa_s) < 0) { |
| dpp_auth_deinit(wpa_s->dpp_auth); |
| wpa_s->dpp_auth = NULL; |
| } |
| } |
| |
| #endif /* CONFIG_DPP2 */ |
| |
| |
| static void wpas_dpp_rx_peer_disc_resp(struct wpa_supplicant *wpa_s, |
| const u8 *src, |
| const u8 *buf, size_t len) |
| { |
| struct wpa_ssid *ssid; |
| const u8 *connector, *trans_id, *status; |
| u16 connector_len, trans_id_len, status_len; |
| struct dpp_introduction intro; |
| struct rsn_pmksa_cache_entry *entry; |
| struct os_time now; |
| struct os_reltime rnow; |
| os_time_t expiry; |
| unsigned int seconds; |
| enum dpp_status_error res; |
| |
| wpa_printf(MSG_DEBUG, "DPP: Peer Discovery Response from " MACSTR, |
| MAC2STR(src)); |
| if (is_zero_ether_addr(wpa_s->dpp_intro_bssid) || |
| os_memcmp(src, wpa_s->dpp_intro_bssid, ETH_ALEN) != 0) { |
| wpa_printf(MSG_DEBUG, "DPP: Not waiting for response from " |
| MACSTR " - drop", MAC2STR(src)); |
| return; |
| } |
| offchannel_send_action_done(wpa_s); |
| |
| for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { |
| if (ssid == wpa_s->dpp_intro_network) |
| break; |
| } |
| if (!ssid || !ssid->dpp_connector || !ssid->dpp_netaccesskey || |
| !ssid->dpp_csign) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Profile not found for network introduction"); |
| return; |
| } |
| |
| trans_id = dpp_get_attr(buf, len, DPP_ATTR_TRANSACTION_ID, |
| &trans_id_len); |
| if (!trans_id || trans_id_len != 1) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Peer did not include Transaction ID"); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR |
| " fail=missing_transaction_id", MAC2STR(src)); |
| goto fail; |
| } |
| if (trans_id[0] != TRANSACTION_ID) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Ignore frame with unexpected Transaction ID %u", |
| trans_id[0]); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR |
| " fail=transaction_id_mismatch", MAC2STR(src)); |
| goto fail; |
| } |
| |
| status = dpp_get_attr(buf, len, DPP_ATTR_STATUS, &status_len); |
| if (!status || status_len != 1) { |
| wpa_printf(MSG_DEBUG, "DPP: Peer did not include Status"); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR |
| " fail=missing_status", MAC2STR(src)); |
| goto fail; |
| } |
| if (status[0] != DPP_STATUS_OK) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Peer rejected network introduction: Status %u", |
| status[0]); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR |
| " status=%u", MAC2STR(src), status[0]); |
| #ifdef CONFIG_DPP2 |
| wpas_dpp_send_conn_status_result(wpa_s, status[0]); |
| #endif /* CONFIG_DPP2 */ |
| goto fail; |
| } |
| |
| connector = dpp_get_attr(buf, len, DPP_ATTR_CONNECTOR, &connector_len); |
| if (!connector) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Peer did not include its Connector"); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR |
| " fail=missing_connector", MAC2STR(src)); |
| goto fail; |
| } |
| |
| res = dpp_peer_intro(&intro, ssid->dpp_connector, |
| ssid->dpp_netaccesskey, |
| ssid->dpp_netaccesskey_len, |
| ssid->dpp_csign, |
| ssid->dpp_csign_len, |
| connector, connector_len, &expiry); |
| if (res != DPP_STATUS_OK) { |
| wpa_printf(MSG_INFO, |
| "DPP: Network Introduction protocol resulted in failure"); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR |
| " fail=peer_connector_validation_failed", MAC2STR(src)); |
| #ifdef CONFIG_DPP2 |
| wpas_dpp_send_conn_status_result(wpa_s, res); |
| #endif /* CONFIG_DPP2 */ |
| goto fail; |
| } |
| |
| entry = os_zalloc(sizeof(*entry)); |
| if (!entry) |
| goto fail; |
| os_memcpy(entry->aa, src, ETH_ALEN); |
| os_memcpy(entry->pmkid, intro.pmkid, PMKID_LEN); |
| os_memcpy(entry->pmk, intro.pmk, intro.pmk_len); |
| entry->pmk_len = intro.pmk_len; |
| entry->akmp = WPA_KEY_MGMT_DPP; |
| if (expiry) { |
| os_get_time(&now); |
| seconds = expiry - now.sec; |
| } else { |
| seconds = 86400 * 7; |
| } |
| os_get_reltime(&rnow); |
| entry->expiration = rnow.sec + seconds; |
| entry->reauth_time = rnow.sec + seconds; |
| entry->network_ctx = ssid; |
| wpa_sm_pmksa_cache_add_entry(wpa_s->wpa, entry); |
| |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR |
| " status=%u", MAC2STR(src), status[0]); |
| |
| wpa_printf(MSG_DEBUG, |
| "DPP: Try connection again after successful network introduction"); |
| if (wpa_supplicant_fast_associate(wpa_s) != 1) { |
| wpa_supplicant_cancel_sched_scan(wpa_s); |
| wpa_supplicant_req_scan(wpa_s, 0, 0); |
| } |
| fail: |
| os_memset(&intro, 0, sizeof(intro)); |
| } |
| |
| |
| static int wpas_dpp_allow_ir(struct wpa_supplicant *wpa_s, unsigned int freq) |
| { |
| int i, j; |
| |
| if (!wpa_s->hw.modes) |
| return -1; |
| |
| for (i = 0; i < wpa_s->hw.num_modes; i++) { |
| struct hostapd_hw_modes *mode = &wpa_s->hw.modes[i]; |
| |
| for (j = 0; j < mode->num_channels; j++) { |
| struct hostapd_channel_data *chan = &mode->channels[j]; |
| |
| if (chan->freq != (int) freq) |
| continue; |
| |
| if (chan->flag & (HOSTAPD_CHAN_DISABLED | |
| HOSTAPD_CHAN_NO_IR | |
| HOSTAPD_CHAN_RADAR)) |
| continue; |
| |
| return 1; |
| } |
| } |
| |
| wpa_printf(MSG_DEBUG, |
| "DPP: Frequency %u MHz not supported or does not allow PKEX initiation in the current channel list", |
| freq); |
| |
| return 0; |
| } |
| |
| |
| static int wpas_dpp_pkex_next_channel(struct wpa_supplicant *wpa_s, |
| struct dpp_pkex *pkex) |
| { |
| if (pkex->freq == 2437) |
| pkex->freq = 5745; |
| else if (pkex->freq == 5745) |
| pkex->freq = 5220; |
| else if (pkex->freq == 5220) |
| pkex->freq = 60480; |
| else |
| return -1; /* no more channels to try */ |
| |
| if (wpas_dpp_allow_ir(wpa_s, pkex->freq) == 1) { |
| wpa_printf(MSG_DEBUG, "DPP: Try to initiate on %u MHz", |
| pkex->freq); |
| return 0; |
| } |
| |
| /* Could not use this channel - try the next one */ |
| return wpas_dpp_pkex_next_channel(wpa_s, pkex); |
| } |
| |
| |
| static void wpas_dpp_pkex_retry_timeout(void *eloop_ctx, void *timeout_ctx) |
| { |
| struct wpa_supplicant *wpa_s = eloop_ctx; |
| struct dpp_pkex *pkex = wpa_s->dpp_pkex; |
| |
| if (!pkex || !pkex->exchange_req) |
| return; |
| if (pkex->exch_req_tries >= 5) { |
| if (wpas_dpp_pkex_next_channel(wpa_s, pkex) < 0) { |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL |
| "No response from PKEX peer"); |
| dpp_pkex_free(pkex); |
| wpa_s->dpp_pkex = NULL; |
| return; |
| } |
| pkex->exch_req_tries = 0; |
| } |
| |
| pkex->exch_req_tries++; |
| wpa_printf(MSG_DEBUG, "DPP: Retransmit PKEX Exchange Request (try %u)", |
| pkex->exch_req_tries); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d", |
| MAC2STR(broadcast), pkex->freq, DPP_PA_PKEX_EXCHANGE_REQ); |
| offchannel_send_action(wpa_s, pkex->freq, broadcast, |
| wpa_s->own_addr, broadcast, |
| wpabuf_head(pkex->exchange_req), |
| wpabuf_len(pkex->exchange_req), |
| pkex->exch_req_wait_time, |
| wpas_dpp_tx_pkex_status, 0); |
| } |
| |
| |
| static void |
| wpas_dpp_tx_pkex_status(struct wpa_supplicant *wpa_s, |
| unsigned int freq, const u8 *dst, |
| const u8 *src, const u8 *bssid, |
| const u8 *data, size_t data_len, |
| enum offchannel_send_action_result result) |
| { |
| const char *res_txt; |
| struct dpp_pkex *pkex = wpa_s->dpp_pkex; |
| |
| res_txt = result == OFFCHANNEL_SEND_ACTION_SUCCESS ? "SUCCESS" : |
| (result == OFFCHANNEL_SEND_ACTION_NO_ACK ? "no-ACK" : |
| "FAILED"); |
| wpa_printf(MSG_DEBUG, "DPP: TX status: freq=%u dst=" MACSTR |
| " result=%s (PKEX)", |
| freq, MAC2STR(dst), res_txt); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX_STATUS "dst=" MACSTR |
| " freq=%u result=%s", MAC2STR(dst), freq, res_txt); |
| |
| if (!pkex) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Ignore TX status since there is no ongoing PKEX exchange"); |
| return; |
| } |
| |
| if (pkex->failed) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Terminate PKEX exchange due to an earlier error"); |
| if (pkex->t > pkex->own_bi->pkex_t) |
| pkex->own_bi->pkex_t = pkex->t; |
| dpp_pkex_free(pkex); |
| wpa_s->dpp_pkex = NULL; |
| return; |
| } |
| |
| if (pkex->exch_req_wait_time && pkex->exchange_req) { |
| /* Wait for PKEX Exchange Response frame and retry request if |
| * no response is seen. */ |
| eloop_cancel_timeout(wpas_dpp_pkex_retry_timeout, wpa_s, NULL); |
| eloop_register_timeout(pkex->exch_req_wait_time / 1000, |
| (pkex->exch_req_wait_time % 1000) * 1000, |
| wpas_dpp_pkex_retry_timeout, wpa_s, |
| NULL); |
| } |
| } |
| |
| |
| static void |
| wpas_dpp_rx_pkex_exchange_req(struct wpa_supplicant *wpa_s, const u8 *src, |
| const u8 *buf, size_t len, unsigned int freq) |
| { |
| struct wpabuf *msg; |
| unsigned int wait_time; |
| |
| wpa_printf(MSG_DEBUG, "DPP: PKEX Exchange Request from " MACSTR, |
| MAC2STR(src)); |
| |
| /* TODO: Support multiple PKEX codes by iterating over all the enabled |
| * values here */ |
| |
| if (!wpa_s->dpp_pkex_code || !wpa_s->dpp_pkex_bi) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: No PKEX code configured - ignore request"); |
| return; |
| } |
| |
| if (wpa_s->dpp_pkex) { |
| /* TODO: Support parallel operations */ |
| wpa_printf(MSG_DEBUG, |
| "DPP: Already in PKEX session - ignore new request"); |
| return; |
| } |
| |
| wpa_s->dpp_pkex = dpp_pkex_rx_exchange_req(wpa_s, wpa_s->dpp_pkex_bi, |
| wpa_s->own_addr, src, |
| wpa_s->dpp_pkex_identifier, |
| wpa_s->dpp_pkex_code, |
| buf, len); |
| if (!wpa_s->dpp_pkex) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Failed to process the request - ignore it"); |
| return; |
| } |
| |
| msg = wpa_s->dpp_pkex->exchange_resp; |
| wait_time = wpa_s->max_remain_on_chan; |
| if (wait_time > 2000) |
| wait_time = 2000; |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d", |
| MAC2STR(src), freq, DPP_PA_PKEX_EXCHANGE_RESP); |
| offchannel_send_action(wpa_s, freq, src, wpa_s->own_addr, |
| broadcast, |
| wpabuf_head(msg), wpabuf_len(msg), |
| wait_time, wpas_dpp_tx_pkex_status, 0); |
| } |
| |
| |
| static void |
| wpas_dpp_rx_pkex_exchange_resp(struct wpa_supplicant *wpa_s, const u8 *src, |
| const u8 *buf, size_t len, unsigned int freq) |
| { |
| struct wpabuf *msg; |
| unsigned int wait_time; |
| |
| wpa_printf(MSG_DEBUG, "DPP: PKEX Exchange Response from " MACSTR, |
| MAC2STR(src)); |
| |
| /* TODO: Support multiple PKEX codes by iterating over all the enabled |
| * values here */ |
| |
| if (!wpa_s->dpp_pkex || !wpa_s->dpp_pkex->initiator || |
| wpa_s->dpp_pkex->exchange_done) { |
| wpa_printf(MSG_DEBUG, "DPP: No matching PKEX session"); |
| return; |
| } |
| |
| eloop_cancel_timeout(wpas_dpp_pkex_retry_timeout, wpa_s, NULL); |
| wpa_s->dpp_pkex->exch_req_wait_time = 0; |
| |
| msg = dpp_pkex_rx_exchange_resp(wpa_s->dpp_pkex, src, buf, len); |
| if (!msg) { |
| wpa_printf(MSG_DEBUG, "DPP: Failed to process the response"); |
| return; |
| } |
| |
| wpa_printf(MSG_DEBUG, "DPP: Send PKEX Commit-Reveal Request to " MACSTR, |
| MAC2STR(src)); |
| |
| wait_time = wpa_s->max_remain_on_chan; |
| if (wait_time > 2000) |
| wait_time = 2000; |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d", |
| MAC2STR(src), freq, DPP_PA_PKEX_COMMIT_REVEAL_REQ); |
| offchannel_send_action(wpa_s, freq, src, wpa_s->own_addr, |
| broadcast, |
| wpabuf_head(msg), wpabuf_len(msg), |
| wait_time, wpas_dpp_tx_pkex_status, 0); |
| wpabuf_free(msg); |
| } |
| |
| |
| static struct dpp_bootstrap_info * |
| wpas_dpp_pkex_finish(struct wpa_supplicant *wpa_s, const u8 *peer, |
| unsigned int freq) |
| { |
| struct dpp_bootstrap_info *bi; |
| |
| bi = dpp_pkex_finish(wpa_s->dpp, wpa_s->dpp_pkex, peer, freq); |
| if (!bi) |
| return NULL; |
| wpa_s->dpp_pkex = NULL; |
| return bi; |
| } |
| |
| |
| static void |
| wpas_dpp_rx_pkex_commit_reveal_req(struct wpa_supplicant *wpa_s, const u8 *src, |
| const u8 *hdr, const u8 *buf, size_t len, |
| unsigned int freq) |
| { |
| struct wpabuf *msg; |
| unsigned int wait_time; |
| struct dpp_pkex *pkex = wpa_s->dpp_pkex; |
| |
| wpa_printf(MSG_DEBUG, "DPP: PKEX Commit-Reveal Request from " MACSTR, |
| MAC2STR(src)); |
| |
| if (!pkex || pkex->initiator || !pkex->exchange_done) { |
| wpa_printf(MSG_DEBUG, "DPP: No matching PKEX session"); |
| return; |
| } |
| |
| msg = dpp_pkex_rx_commit_reveal_req(pkex, hdr, buf, len); |
| if (!msg) { |
| wpa_printf(MSG_DEBUG, "DPP: Failed to process the request"); |
| if (pkex->failed) { |
| wpa_printf(MSG_DEBUG, "DPP: Terminate PKEX exchange"); |
| if (pkex->t > pkex->own_bi->pkex_t) |
| pkex->own_bi->pkex_t = pkex->t; |
| dpp_pkex_free(wpa_s->dpp_pkex); |
| wpa_s->dpp_pkex = NULL; |
| } |
| return; |
| } |
| |
| wpa_printf(MSG_DEBUG, "DPP: Send PKEX Commit-Reveal Response to " |
| MACSTR, MAC2STR(src)); |
| |
| wait_time = wpa_s->max_remain_on_chan; |
| if (wait_time > 2000) |
| wait_time = 2000; |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d", |
| MAC2STR(src), freq, DPP_PA_PKEX_COMMIT_REVEAL_RESP); |
| offchannel_send_action(wpa_s, freq, src, wpa_s->own_addr, |
| broadcast, |
| wpabuf_head(msg), wpabuf_len(msg), |
| wait_time, wpas_dpp_tx_pkex_status, 0); |
| wpabuf_free(msg); |
| |
| wpas_dpp_pkex_finish(wpa_s, src, freq); |
| } |
| |
| |
| static void |
| wpas_dpp_rx_pkex_commit_reveal_resp(struct wpa_supplicant *wpa_s, const u8 *src, |
| const u8 *hdr, const u8 *buf, size_t len, |
| unsigned int freq) |
| { |
| int res; |
| struct dpp_bootstrap_info *bi; |
| struct dpp_pkex *pkex = wpa_s->dpp_pkex; |
| char cmd[500]; |
| |
| wpa_printf(MSG_DEBUG, "DPP: PKEX Commit-Reveal Response from " MACSTR, |
| MAC2STR(src)); |
| |
| if (!pkex || !pkex->initiator || !pkex->exchange_done) { |
| wpa_printf(MSG_DEBUG, "DPP: No matching PKEX session"); |
| return; |
| } |
| |
| res = dpp_pkex_rx_commit_reveal_resp(pkex, hdr, buf, len); |
| if (res < 0) { |
| wpa_printf(MSG_DEBUG, "DPP: Failed to process the response"); |
| return; |
| } |
| |
| bi = wpas_dpp_pkex_finish(wpa_s, src, freq); |
| if (!bi) |
| return; |
| |
| os_snprintf(cmd, sizeof(cmd), " peer=%u %s", |
| bi->id, |
| wpa_s->dpp_pkex_auth_cmd ? wpa_s->dpp_pkex_auth_cmd : ""); |
| wpa_printf(MSG_DEBUG, |
| "DPP: Start authentication after PKEX with parameters: %s", |
| cmd); |
| if (wpas_dpp_auth_init(wpa_s, cmd) < 0) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Authentication initialization failed"); |
| offchannel_send_action_done(wpa_s); |
| return; |
| } |
| } |
| |
| |
| void wpas_dpp_rx_action(struct wpa_supplicant *wpa_s, const u8 *src, |
| const u8 *buf, size_t len, unsigned int freq) |
| { |
| u8 crypto_suite; |
| enum dpp_public_action_frame_type type; |
| const u8 *hdr; |
| unsigned int pkex_t; |
| |
| if (len < DPP_HDR_LEN) |
| return; |
| if (WPA_GET_BE24(buf) != OUI_WFA || buf[3] != DPP_OUI_TYPE) |
| return; |
| hdr = buf; |
| buf += 4; |
| len -= 4; |
| crypto_suite = *buf++; |
| type = *buf++; |
| len -= 2; |
| |
| wpa_printf(MSG_DEBUG, |
| "DPP: Received DPP Public Action frame crypto suite %u type %d from " |
| MACSTR " freq=%u", |
| crypto_suite, type, MAC2STR(src), freq); |
| if (crypto_suite != 1) { |
| wpa_printf(MSG_DEBUG, "DPP: Unsupported crypto suite %u", |
| crypto_suite); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_RX "src=" MACSTR |
| " freq=%u type=%d ignore=unsupported-crypto-suite", |
| MAC2STR(src), freq, type); |
| return; |
| } |
| wpa_hexdump(MSG_MSGDUMP, "DPP: Received message attributes", buf, len); |
| if (dpp_check_attrs(buf, len) < 0) { |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_RX "src=" MACSTR |
| " freq=%u type=%d ignore=invalid-attributes", |
| MAC2STR(src), freq, type); |
| return; |
| } |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_RX "src=" MACSTR " freq=%u type=%d", |
| MAC2STR(src), freq, type); |
| |
| switch (type) { |
| case DPP_PA_AUTHENTICATION_REQ: |
| wpas_dpp_rx_auth_req(wpa_s, src, hdr, buf, len, freq); |
| break; |
| case DPP_PA_AUTHENTICATION_RESP: |
| wpas_dpp_rx_auth_resp(wpa_s, src, hdr, buf, len, freq); |
| break; |
| case DPP_PA_AUTHENTICATION_CONF: |
| wpas_dpp_rx_auth_conf(wpa_s, src, hdr, buf, len); |
| break; |
| case DPP_PA_PEER_DISCOVERY_RESP: |
| wpas_dpp_rx_peer_disc_resp(wpa_s, src, buf, len); |
| break; |
| case DPP_PA_PKEX_EXCHANGE_REQ: |
| wpas_dpp_rx_pkex_exchange_req(wpa_s, src, buf, len, freq); |
| break; |
| case DPP_PA_PKEX_EXCHANGE_RESP: |
| wpas_dpp_rx_pkex_exchange_resp(wpa_s, src, buf, len, freq); |
| break; |
| case DPP_PA_PKEX_COMMIT_REVEAL_REQ: |
| wpas_dpp_rx_pkex_commit_reveal_req(wpa_s, src, hdr, buf, len, |
| freq); |
| break; |
| case DPP_PA_PKEX_COMMIT_REVEAL_RESP: |
| wpas_dpp_rx_pkex_commit_reveal_resp(wpa_s, src, hdr, buf, len, |
| freq); |
| break; |
| #ifdef CONFIG_DPP2 |
| case DPP_PA_CONFIGURATION_RESULT: |
| wpas_dpp_rx_conf_result(wpa_s, src, hdr, buf, len); |
| break; |
| case DPP_PA_CONNECTION_STATUS_RESULT: |
| wpas_dpp_rx_conn_status_result(wpa_s, src, hdr, buf, len); |
| break; |
| case DPP_PA_PRESENCE_ANNOUNCEMENT: |
| wpas_dpp_rx_presence_announcement(wpa_s, src, hdr, buf, len, |
| freq); |
| break; |
| #endif /* CONFIG_DPP2 */ |
| default: |
| wpa_printf(MSG_DEBUG, |
| "DPP: Ignored unsupported frame subtype %d", type); |
| break; |
| } |
| |
| if (wpa_s->dpp_pkex) |
| pkex_t = wpa_s->dpp_pkex->t; |
| else if (wpa_s->dpp_pkex_bi) |
| pkex_t = wpa_s->dpp_pkex_bi->pkex_t; |
| else |
| pkex_t = 0; |
| if (pkex_t >= PKEX_COUNTER_T_LIMIT) { |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_PKEX_T_LIMIT "id=0"); |
| wpas_dpp_pkex_remove(wpa_s, "*"); |
| } |
| } |
| |
| |
| static struct wpabuf * |
| wpas_dpp_gas_req_handler(void *ctx, const u8 *sa, const u8 *query, |
| size_t query_len) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| struct dpp_authentication *auth = wpa_s->dpp_auth; |
| struct wpabuf *resp; |
| |
| wpa_printf(MSG_DEBUG, "DPP: GAS request from " MACSTR, |
| MAC2STR(sa)); |
| if (!auth || !auth->auth_success || |
| os_memcmp(sa, auth->peer_mac_addr, ETH_ALEN) != 0) { |
| wpa_printf(MSG_DEBUG, "DPP: No matching exchange in progress"); |
| return NULL; |
| } |
| |
| if (wpa_s->dpp_auth_ok_on_ack && auth->configurator) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Have not received ACK for Auth Confirm yet - assume it was received based on this GAS request"); |
| /* wpas_dpp_auth_success() would normally have been called from |
| * TX status handler, but since there was no such handler call |
| * yet, simply send out the event message and proceed with |
| * exchange. */ |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_AUTH_SUCCESS "init=1"); |
| wpa_s->dpp_auth_ok_on_ack = 0; |
| } |
| |
| wpa_hexdump(MSG_DEBUG, |
| "DPP: Received Configuration Request (GAS Query Request)", |
| query, query_len); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_REQ_RX "src=" MACSTR, |
| MAC2STR(sa)); |
| resp = dpp_conf_req_rx(auth, query, query_len); |
| if (!resp) { |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED); |
| wpas_notify_dpp_configuration_failure(wpa_s); |
| } |
| auth->conf_resp = resp; |
| return resp; |
| } |
| |
| |
| static void |
| wpas_dpp_gas_status_handler(void *ctx, struct wpabuf *resp, int ok) |
| { |
| struct wpa_supplicant *wpa_s = ctx; |
| struct dpp_authentication *auth = wpa_s->dpp_auth; |
| |
| if (!auth) { |
| wpabuf_free(resp); |
| return; |
| } |
| if (auth->conf_resp != resp) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Ignore GAS status report (ok=%d) for unknown response", |
| ok); |
| wpabuf_free(resp); |
| return; |
| } |
| |
| wpa_printf(MSG_DEBUG, "DPP: Configuration exchange completed (ok=%d)", |
| ok); |
| eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL); |
| eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s, NULL); |
| #ifdef CONFIG_DPP2 |
| if (ok && auth->peer_version >= 2 && |
| auth->conf_resp_status == DPP_STATUS_OK) { |
| wpa_printf(MSG_DEBUG, "DPP: Wait for Configuration Result"); |
| wpas_notify_dpp_config_sent_wait_response(wpa_s); |
| auth->waiting_conf_result = 1; |
| auth->conf_resp = NULL; |
| wpabuf_free(resp); |
| eloop_cancel_timeout(wpas_dpp_config_result_wait_timeout, |
| wpa_s, NULL); |
| eloop_register_timeout(2, 0, |
| wpas_dpp_config_result_wait_timeout, |
| wpa_s, NULL); |
| return; |
| } |
| #endif /* CONFIG_DPP2 */ |
| offchannel_send_action_done(wpa_s); |
| wpas_dpp_listen_stop(wpa_s); |
| if (ok) { |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_SENT); |
| wpas_notify_dpp_config_sent(wpa_s); |
| } |
| else { |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED); |
| wpas_notify_dpp_configuration_failure(wpa_s); |
| } |
| dpp_auth_deinit(wpa_s->dpp_auth); |
| wpa_s->dpp_auth = NULL; |
| wpabuf_free(resp); |
| } |
| |
| |
| int wpas_dpp_configurator_sign(struct wpa_supplicant *wpa_s, const char *cmd) |
| { |
| struct dpp_authentication *auth; |
| int ret = -1; |
| char *curve = NULL; |
| |
| auth = dpp_alloc_auth(wpa_s->dpp, wpa_s); |
| if (!auth) |
| return -1; |
| |
| curve = get_param(cmd, " curve="); |
| wpas_dpp_set_testing_options(wpa_s, auth); |
| if (dpp_set_configurator(auth, cmd) == 0 && |
| dpp_configurator_own_config(auth, curve, 0) == 0) |
| ret = wpas_dpp_handle_config_obj(wpa_s, auth, |
| &auth->conf_obj[0]); |
| if (!ret) |
| wpas_dpp_post_process_config(wpa_s, auth); |
| |
| dpp_auth_deinit(auth); |
| os_free(curve); |
| |
| return ret; |
| } |
| |
| |
| static void |
| wpas_dpp_tx_introduction_status(struct wpa_supplicant *wpa_s, |
| unsigned int freq, const u8 *dst, |
| const u8 *src, const u8 *bssid, |
| const u8 *data, size_t data_len, |
| enum offchannel_send_action_result result) |
| { |
| const char *res_txt; |
| |
| res_txt = result == OFFCHANNEL_SEND_ACTION_SUCCESS ? "SUCCESS" : |
| (result == OFFCHANNEL_SEND_ACTION_NO_ACK ? "no-ACK" : |
| "FAILED"); |
| wpa_printf(MSG_DEBUG, "DPP: TX status: freq=%u dst=" MACSTR |
| " result=%s (DPP Peer Discovery Request)", |
| freq, MAC2STR(dst), res_txt); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX_STATUS "dst=" MACSTR |
| " freq=%u result=%s", MAC2STR(dst), freq, res_txt); |
| /* TODO: Time out wait for response more quickly in error cases? */ |
| } |
| |
| |
| int wpas_dpp_check_connect(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid, |
| struct wpa_bss *bss) |
| { |
| struct os_time now; |
| struct wpabuf *msg; |
| unsigned int wait_time; |
| const u8 *rsn; |
| struct wpa_ie_data ied; |
| |
| if (!(ssid->key_mgmt & WPA_KEY_MGMT_DPP) || !bss) |
| return 0; /* Not using DPP AKM - continue */ |
| rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); |
| if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ied) == 0 && |
| !(ied.key_mgmt & WPA_KEY_MGMT_DPP)) |
| return 0; /* AP does not support DPP AKM - continue */ |
| if (wpa_sm_pmksa_exists(wpa_s->wpa, bss->bssid, ssid)) |
| return 0; /* PMKSA exists for DPP AKM - continue */ |
| |
| if (!ssid->dpp_connector || !ssid->dpp_netaccesskey || |
| !ssid->dpp_csign) { |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_MISSING_CONNECTOR |
| "missing %s", |
| !ssid->dpp_connector ? "Connector" : |
| (!ssid->dpp_netaccesskey ? "netAccessKey" : |
| "C-sign-key")); |
| return -1; |
| } |
| |
| os_get_time(&now); |
| |
| if (ssid->dpp_netaccesskey_expiry && |
| (os_time_t) ssid->dpp_netaccesskey_expiry < now.sec) { |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_MISSING_CONNECTOR |
| "netAccessKey expired"); |
| return -1; |
| } |
| |
| wpa_printf(MSG_DEBUG, |
| "DPP: Starting network introduction protocol to derive PMKSA for " |
| MACSTR, MAC2STR(bss->bssid)); |
| |
| msg = dpp_alloc_msg(DPP_PA_PEER_DISCOVERY_REQ, |
| 5 + 4 + os_strlen(ssid->dpp_connector)); |
| if (!msg) |
| return -1; |
| |
| #ifdef CONFIG_TESTING_OPTIONS |
| if (dpp_test == DPP_TEST_NO_TRANSACTION_ID_PEER_DISC_REQ) { |
| wpa_printf(MSG_INFO, "DPP: TESTING - no Transaction ID"); |
| goto skip_trans_id; |
| } |
| if (dpp_test == DPP_TEST_INVALID_TRANSACTION_ID_PEER_DISC_REQ) { |
| wpa_printf(MSG_INFO, "DPP: TESTING - invalid Transaction ID"); |
| wpabuf_put_le16(msg, DPP_ATTR_TRANSACTION_ID); |
| wpabuf_put_le16(msg, 0); |
| goto skip_trans_id; |
| } |
| #endif /* CONFIG_TESTING_OPTIONS */ |
| |
| /* Transaction ID */ |
| wpabuf_put_le16(msg, DPP_ATTR_TRANSACTION_ID); |
| wpabuf_put_le16(msg, 1); |
| wpabuf_put_u8(msg, TRANSACTION_ID); |
| |
| #ifdef CONFIG_TESTING_OPTIONS |
| skip_trans_id: |
| if (dpp_test == DPP_TEST_NO_CONNECTOR_PEER_DISC_REQ) { |
| wpa_printf(MSG_INFO, "DPP: TESTING - no Connector"); |
| goto skip_connector; |
| } |
| if (dpp_test == DPP_TEST_INVALID_CONNECTOR_PEER_DISC_REQ) { |
| char *connector; |
| |
| wpa_printf(MSG_INFO, "DPP: TESTING - invalid Connector"); |
| connector = dpp_corrupt_connector_signature( |
| ssid->dpp_connector); |
| if (!connector) { |
| wpabuf_free(msg); |
| return -1; |
| } |
| wpabuf_put_le16(msg, DPP_ATTR_CONNECTOR); |
| wpabuf_put_le16(msg, os_strlen(connector)); |
| wpabuf_put_str(msg, connector); |
| os_free(connector); |
| goto skip_connector; |
| } |
| #endif /* CONFIG_TESTING_OPTIONS */ |
| |
| /* DPP Connector */ |
| wpabuf_put_le16(msg, DPP_ATTR_CONNECTOR); |
| wpabuf_put_le16(msg, os_strlen(ssid->dpp_connector)); |
| wpabuf_put_str(msg, ssid->dpp_connector); |
| |
| #ifdef CONFIG_TESTING_OPTIONS |
| skip_connector: |
| #endif /* CONFIG_TESTING_OPTIONS */ |
| |
| /* TODO: Timeout on AP response */ |
| wait_time = wpa_s->max_remain_on_chan; |
| if (wait_time > 2000) |
| wait_time = 2000; |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d", |
| MAC2STR(bss->bssid), bss->freq, DPP_PA_PEER_DISCOVERY_REQ); |
| offchannel_send_action(wpa_s, bss->freq, bss->bssid, wpa_s->own_addr, |
| broadcast, |
| wpabuf_head(msg), wpabuf_len(msg), |
| wait_time, wpas_dpp_tx_introduction_status, 0); |
| wpabuf_free(msg); |
| |
| /* Request this connection attempt to terminate - new one will be |
| * started when network introduction protocol completes */ |
| os_memcpy(wpa_s->dpp_intro_bssid, bss->bssid, ETH_ALEN); |
| wpa_s->dpp_intro_network = ssid; |
| return 1; |
| } |
| |
| |
| int wpas_dpp_pkex_add(struct wpa_supplicant *wpa_s, const char *cmd) |
| { |
| struct dpp_bootstrap_info *own_bi; |
| const char *pos, *end; |
| unsigned int wait_time; |
| |
| pos = os_strstr(cmd, " own="); |
| if (!pos) |
| return -1; |
| pos += 5; |
| own_bi = dpp_bootstrap_get_id(wpa_s->dpp, atoi(pos)); |
| if (!own_bi) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Identified bootstrap info not found"); |
| return -1; |
| } |
| if (own_bi->type != DPP_BOOTSTRAP_PKEX) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Identified bootstrap info not for PKEX"); |
| return -1; |
| } |
| wpa_s->dpp_pkex_bi = own_bi; |
| own_bi->pkex_t = 0; /* clear pending errors on new code */ |
| |
| os_free(wpa_s->dpp_pkex_identifier); |
| wpa_s->dpp_pkex_identifier = NULL; |
| pos = os_strstr(cmd, " identifier="); |
| if (pos) { |
| pos += 12; |
| end = os_strchr(pos, ' '); |
| if (!end) |
| return -1; |
| wpa_s->dpp_pkex_identifier = os_malloc(end - pos + 1); |
| if (!wpa_s->dpp_pkex_identifier) |
| return -1; |
| os_memcpy(wpa_s->dpp_pkex_identifier, pos, end - pos); |
| wpa_s->dpp_pkex_identifier[end - pos] = '\0'; |
| } |
| |
| pos = os_strstr(cmd, " code="); |
| if (!pos) |
| return -1; |
| os_free(wpa_s->dpp_pkex_code); |
| wpa_s->dpp_pkex_code = os_strdup(pos + 6); |
| if (!wpa_s->dpp_pkex_code) |
| return -1; |
| |
| if (os_strstr(cmd, " init=1")) { |
| struct dpp_pkex *pkex; |
| struct wpabuf *msg; |
| |
| wpa_printf(MSG_DEBUG, "DPP: Initiating PKEX"); |
| dpp_pkex_free(wpa_s->dpp_pkex); |
| wpa_s->dpp_pkex = dpp_pkex_init(wpa_s, own_bi, wpa_s->own_addr, |
| wpa_s->dpp_pkex_identifier, |
| wpa_s->dpp_pkex_code); |
| pkex = wpa_s->dpp_pkex; |
| if (!pkex) |
| return -1; |
| |
| msg = pkex->exchange_req; |
| wait_time = wpa_s->max_remain_on_chan; |
| if (wait_time > 2000) |
| wait_time = 2000; |
| pkex->freq = 2437; |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR |
| " freq=%u type=%d", |
| MAC2STR(broadcast), pkex->freq, |
| DPP_PA_PKEX_EXCHANGE_REQ); |
| offchannel_send_action(wpa_s, pkex->freq, broadcast, |
| wpa_s->own_addr, broadcast, |
| wpabuf_head(msg), wpabuf_len(msg), |
| wait_time, wpas_dpp_tx_pkex_status, 0); |
| if (wait_time == 0) |
| wait_time = 2000; |
| pkex->exch_req_wait_time = wait_time; |
| pkex->exch_req_tries = 1; |
| } |
| |
| /* TODO: Support multiple PKEX info entries */ |
| |
| os_free(wpa_s->dpp_pkex_auth_cmd); |
| wpa_s->dpp_pkex_auth_cmd = os_strdup(cmd); |
| |
| return 1; |
| } |
| |
| |
| int wpas_dpp_pkex_remove(struct wpa_supplicant *wpa_s, const char *id) |
| { |
| unsigned int id_val; |
| |
| if (os_strcmp(id, "*") == 0) { |
| id_val = 0; |
| } else { |
| id_val = atoi(id); |
| if (id_val == 0) |
| return -1; |
| } |
| |
| if ((id_val != 0 && id_val != 1) || !wpa_s->dpp_pkex_code) |
| return -1; |
| |
| /* TODO: Support multiple PKEX entries */ |
| os_free(wpa_s->dpp_pkex_code); |
| wpa_s->dpp_pkex_code = NULL; |
| os_free(wpa_s->dpp_pkex_identifier); |
| wpa_s->dpp_pkex_identifier = NULL; |
| os_free(wpa_s->dpp_pkex_auth_cmd); |
| wpa_s->dpp_pkex_auth_cmd = NULL; |
| wpa_s->dpp_pkex_bi = NULL; |
| /* TODO: Remove dpp_pkex only if it is for the identified PKEX code */ |
| dpp_pkex_free(wpa_s->dpp_pkex); |
| wpa_s->dpp_pkex = NULL; |
| return 0; |
| } |
| |
| |
| void wpas_dpp_stop(struct wpa_supplicant *wpa_s) |
| { |
| if (wpa_s->dpp_auth || wpa_s->dpp_pkex) |
| offchannel_send_action_done(wpa_s); |
| dpp_auth_deinit(wpa_s->dpp_auth); |
| wpa_s->dpp_auth = NULL; |
| dpp_pkex_free(wpa_s->dpp_pkex); |
| wpa_s->dpp_pkex = NULL; |
| if (wpa_s->dpp_gas_client && wpa_s->dpp_gas_dialog_token >= 0) |
| gas_query_stop(wpa_s->gas, wpa_s->dpp_gas_dialog_token); |
| } |
| |
| |
| int wpas_dpp_init(struct wpa_supplicant *wpa_s) |
| { |
| struct dpp_global_config config; |
| u8 adv_proto_id[7]; |
| |
| adv_proto_id[0] = WLAN_EID_VENDOR_SPECIFIC; |
| adv_proto_id[1] = 5; |
| WPA_PUT_BE24(&adv_proto_id[2], OUI_WFA); |
| adv_proto_id[5] = DPP_OUI_TYPE; |
| adv_proto_id[6] = 0x01; |
| |
| if (gas_server_register(wpa_s->gas_server, adv_proto_id, |
| sizeof(adv_proto_id), wpas_dpp_gas_req_handler, |
| wpas_dpp_gas_status_handler, wpa_s) < 0) |
| return -1; |
| |
| os_memset(&config, 0, sizeof(config)); |
| config.msg_ctx = wpa_s; |
| config.cb_ctx = wpa_s; |
| #ifdef CONFIG_DPP2 |
| config.process_conf_obj = wpas_dpp_process_conf_obj; |
| config.remove_bi = wpas_dpp_remove_bi; |
| #endif /* CONFIG_DPP2 */ |
| wpa_s->dpp = dpp_global_init(&config); |
| return wpa_s->dpp ? 0 : -1; |
| } |
| |
| |
| void wpas_dpp_deinit(struct wpa_supplicant *wpa_s) |
| { |
| #ifdef CONFIG_TESTING_OPTIONS |
| os_free(wpa_s->dpp_config_obj_override); |
| wpa_s->dpp_config_obj_override = NULL; |
| os_free(wpa_s->dpp_discovery_override); |
| wpa_s->dpp_discovery_override = NULL; |
| os_free(wpa_s->dpp_groups_override); |
| wpa_s->dpp_groups_override = NULL; |
| wpa_s->dpp_ignore_netaccesskey_mismatch = 0; |
| #endif /* CONFIG_TESTING_OPTIONS */ |
| if (!wpa_s->dpp) |
| return; |
| dpp_global_clear(wpa_s->dpp); |
| eloop_cancel_timeout(wpas_dpp_pkex_retry_timeout, wpa_s, NULL); |
| eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL); |
| eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL); |
| eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s, NULL); |
| #ifdef CONFIG_DPP2 |
| eloop_cancel_timeout(wpas_dpp_config_result_wait_timeout, wpa_s, NULL); |
| eloop_cancel_timeout(wpas_dpp_conn_status_result_wait_timeout, |
| wpa_s, NULL); |
| eloop_cancel_timeout(wpas_dpp_conn_status_result_timeout, wpa_s, NULL); |
| dpp_pfs_free(wpa_s->dpp_pfs); |
| wpa_s->dpp_pfs = NULL; |
| wpas_dpp_chirp_stop(wpa_s); |
| #endif /* CONFIG_DPP2 */ |
| offchannel_send_action_done(wpa_s); |
| wpas_dpp_listen_stop(wpa_s); |
| wpas_dpp_stop(wpa_s); |
| wpas_dpp_pkex_remove(wpa_s, "*"); |
| os_memset(wpa_s->dpp_intro_bssid, 0, ETH_ALEN); |
| os_free(wpa_s->dpp_configurator_params); |
| wpa_s->dpp_configurator_params = NULL; |
| } |
| |
| |
| #ifdef CONFIG_DPP2 |
| |
| int wpas_dpp_controller_start(struct wpa_supplicant *wpa_s, const char *cmd) |
| { |
| struct dpp_controller_config config; |
| const char *pos; |
| |
| os_memset(&config, 0, sizeof(config)); |
| if (cmd) { |
| pos = os_strstr(cmd, " tcp_port="); |
| if (pos) { |
| pos += 10; |
| config.tcp_port = atoi(pos); |
| } |
| } |
| config.configurator_params = wpa_s->dpp_configurator_params; |
| return dpp_controller_start(wpa_s->dpp, &config); |
| } |
| |
| |
| static void wpas_dpp_chirp_next(void *eloop_ctx, void *timeout_ctx); |
| |
| static void wpas_dpp_chirp_timeout(void *eloop_ctx, void *timeout_ctx) |
| { |
| struct wpa_supplicant *wpa_s = eloop_ctx; |
| |
| wpa_printf(MSG_DEBUG, "DPP: No chirp response received"); |
| offchannel_send_action_done(wpa_s); |
| wpas_dpp_chirp_next(wpa_s, NULL); |
| } |
| |
| |
| static void wpas_dpp_chirp_tx_status(struct wpa_supplicant *wpa_s, |
| unsigned int freq, const u8 *dst, |
| const u8 *src, const u8 *bssid, |
| const u8 *data, size_t data_len, |
| enum offchannel_send_action_result result) |
| { |
| if (result == OFFCHANNEL_SEND_ACTION_FAILED) { |
| wpa_printf(MSG_DEBUG, "DPP: Failed to send chirp on %d MHz", |
| wpa_s->dpp_chirp_freq); |
| if (eloop_register_timeout(0, 0, wpas_dpp_chirp_next, |
| wpa_s, NULL) < 0) |
| wpas_dpp_chirp_stop(wpa_s); |
| return; |
| } |
| |
| wpa_printf(MSG_DEBUG, "DPP: Chirp send completed - wait for response"); |
| if (eloop_register_timeout(2, 0, wpas_dpp_chirp_timeout, |
| wpa_s, NULL) < 0) |
| wpas_dpp_chirp_stop(wpa_s); |
| } |
| |
| |
| static void wpas_dpp_chirp_start(struct wpa_supplicant *wpa_s) |
| { |
| wpa_printf(MSG_DEBUG, "DPP: Chirp on %d MHz", wpa_s->dpp_chirp_freq); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d", |
| MAC2STR(broadcast), wpa_s->dpp_chirp_freq, |
| DPP_PA_PRESENCE_ANNOUNCEMENT); |
| if (offchannel_send_action( |
| wpa_s, wpa_s->dpp_chirp_freq, broadcast, |
| wpa_s->own_addr, broadcast, |
| wpabuf_head(wpa_s->dpp_presence_announcement), |
| wpabuf_len(wpa_s->dpp_presence_announcement), |
| 2000, wpas_dpp_chirp_tx_status, 0) < 0) |
| wpas_dpp_chirp_stop(wpa_s); |
| } |
| |
| |
| static void wpas_dpp_chirp_scan_res_handler(struct wpa_supplicant *wpa_s, |
| struct wpa_scan_results *scan_res) |
| { |
| struct dpp_bootstrap_info *bi = wpa_s->dpp_chirp_bi; |
| unsigned int i; |
| struct hostapd_hw_modes *mode; |
| int c; |
| struct wpa_bss *bss; |
| |
| if (!bi) |
| return; |
| |
| wpa_s->dpp_chirp_scan_done = 1; |
| |
| os_free(wpa_s->dpp_chirp_freqs); |
| wpa_s->dpp_chirp_freqs = NULL; |
| |
| /* Channels from own bootstrapping info */ |
| for (i = 0; i < bi->num_freq; i++) |
| int_array_add_unique(&wpa_s->dpp_chirp_freqs, bi->freq[i]); |
| |
| /* Preferred chirping channels */ |
| int_array_add_unique(&wpa_s->dpp_chirp_freqs, 2437); |
| |
| mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, |
| HOSTAPD_MODE_IEEE80211A, 0); |
| if (mode) { |
| int chan44 = 0, chan149 = 0; |
| |
| for (c = 0; c < mode->num_channels; c++) { |
| struct hostapd_channel_data *chan = &mode->channels[c]; |
| |
| if (chan->flag & (HOSTAPD_CHAN_DISABLED | |
| HOSTAPD_CHAN_RADAR)) |
| continue; |
| if (chan->freq == 5220) |
| chan44 = 1; |
| if (chan->freq == 5745) |
| chan149 = 1; |
| } |
| if (chan149) |
| int_array_add_unique(&wpa_s->dpp_chirp_freqs, 5745); |
| else if (chan44) |
| int_array_add_unique(&wpa_s->dpp_chirp_freqs, 5220); |
| } |
| |
| mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, |
| HOSTAPD_MODE_IEEE80211AD, 0); |
| if (mode) { |
| for (c = 0; c < mode->num_channels; c++) { |
| struct hostapd_channel_data *chan = &mode->channels[c]; |
| |
| if ((chan->flag & (HOSTAPD_CHAN_DISABLED | |
| HOSTAPD_CHAN_RADAR)) || |
| chan->freq != 60480) |
| continue; |
| int_array_add_unique(&wpa_s->dpp_chirp_freqs, 60480); |
| break; |
| } |
| } |
| |
| /* Add channels from scan results for APs that advertise Configurator |
| * Connectivity element */ |
| dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { |
| if (wpa_bss_get_vendor_ie(bss, DPP_CC_IE_VENDOR_TYPE)) |
| int_array_add_unique(&wpa_s->dpp_chirp_freqs, |
| bss->freq); |
| } |
| |
| if (!wpa_s->dpp_chirp_freqs || |
| eloop_register_timeout(0, 0, wpas_dpp_chirp_next, wpa_s, NULL) < 0) |
| wpas_dpp_chirp_stop(wpa_s); |
| } |
| |
| |
| static void wpas_dpp_chirp_next(void *eloop_ctx, void *timeout_ctx) |
| { |
| struct wpa_supplicant *wpa_s = eloop_ctx; |
| int i; |
| |
| if (wpa_s->dpp_chirp_listen) |
| wpas_dpp_listen_stop(wpa_s); |
| |
| if (wpa_s->dpp_chirp_freq == 0) { |
| if (wpa_s->dpp_chirp_round % 4 == 0 && |
| !wpa_s->dpp_chirp_scan_done) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Update channel list for chirping"); |
| wpa_s->scan_req = MANUAL_SCAN_REQ; |
| wpa_s->scan_res_handler = |
| wpas_dpp_chirp_scan_res_handler; |
| wpa_supplicant_req_scan(wpa_s, 0, 0); |
| return; |
| } |
| wpa_s->dpp_chirp_freq = wpa_s->dpp_chirp_freqs[0]; |
| wpa_s->dpp_chirp_round++; |
| wpa_printf(MSG_DEBUG, "DPP: Start chirping round %d", |
| wpa_s->dpp_chirp_round); |
| } else { |
| for (i = 0; wpa_s->dpp_chirp_freqs[i]; i++) |
| if (wpa_s->dpp_chirp_freqs[i] == wpa_s->dpp_chirp_freq) |
| break; |
| if (!wpa_s->dpp_chirp_freqs[i]) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Previous chirp freq %d not found", |
| wpa_s->dpp_chirp_freq); |
| return; |
| } |
| i++; |
| if (wpa_s->dpp_chirp_freqs[i]) { |
| wpa_s->dpp_chirp_freq = wpa_s->dpp_chirp_freqs[i]; |
| } else { |
| wpa_s->dpp_chirp_iter--; |
| if (wpa_s->dpp_chirp_iter <= 0) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Chirping iterations completed"); |
| wpas_dpp_chirp_stop(wpa_s); |
| return; |
| } |
| wpa_s->dpp_chirp_freq = 0; |
| wpa_s->dpp_chirp_scan_done = 0; |
| if (eloop_register_timeout(30, 0, wpas_dpp_chirp_next, |
| wpa_s, NULL) < 0) { |
| wpas_dpp_chirp_stop(wpa_s); |
| return; |
| } |
| if (wpa_s->dpp_chirp_listen) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Listen on %d MHz during chirp 30 second wait", |
| wpa_s->dpp_chirp_listen); |
| wpas_dpp_listen_start(wpa_s, |
| wpa_s->dpp_chirp_listen); |
| } else { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Wait 30 seconds before starting the next chirping round"); |
| } |
| return; |
| } |
| } |
| |
| wpas_dpp_chirp_start(wpa_s); |
| } |
| |
| |
| int wpas_dpp_chirp(struct wpa_supplicant *wpa_s, const char *cmd) |
| { |
| const char *pos; |
| int iter = 1, listen_freq = 0; |
| struct dpp_bootstrap_info *bi; |
| |
| pos = os_strstr(cmd, " own="); |
| if (!pos) |
| return -1; |
| pos += 5; |
| bi = dpp_bootstrap_get_id(wpa_s->dpp, atoi(pos)); |
| if (!bi) { |
| wpa_printf(MSG_DEBUG, |
| "DPP: Identified bootstrap info not found"); |
| return -1; |
| } |
| |
| pos = os_strstr(cmd, " iter="); |
| if (pos) { |
| iter = atoi(pos + 6); |
| if (iter <= 0) |
| return -1; |
| } |
| |
| pos = os_strstr(cmd, " listen="); |
| if (pos) { |
| listen_freq = atoi(pos + 8); |
| if (iter <= 0) |
| return -1; |
| } |
| |
| wpas_dpp_chirp_stop(wpa_s); |
| wpa_s->dpp_allowed_roles = DPP_CAPAB_ENROLLEE; |
| wpa_s->dpp_qr_mutual = 0; |
| wpa_s->dpp_chirp_bi = bi; |
| wpa_s->dpp_presence_announcement = dpp_build_presence_announcement(bi); |
| if (!wpa_s->dpp_presence_announcement) |
| return -1; |
| wpa_s->dpp_chirp_iter = iter; |
| wpa_s->dpp_chirp_round = 0; |
| wpa_s->dpp_chirp_scan_done = 0; |
| wpa_s->dpp_chirp_listen = listen_freq; |
| |
| return eloop_register_timeout(0, 0, wpas_dpp_chirp_next, wpa_s, NULL); |
| } |
| |
| |
| void wpas_dpp_chirp_stop(struct wpa_supplicant *wpa_s) |
| { |
| if (wpa_s->dpp_presence_announcement) { |
| offchannel_send_action_done(wpa_s); |
| wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CHIRP_STOPPED); |
| } |
| wpa_s->dpp_chirp_bi = NULL; |
| wpabuf_free(wpa_s->dpp_presence_announcement); |
| wpa_s->dpp_presence_announcement = NULL; |
| if (wpa_s->dpp_chirp_listen) |
| wpas_dpp_listen_stop(wpa_s); |
| wpa_s->dpp_chirp_listen = 0; |
| wpa_s->dpp_chirp_freq = 0; |
| os_free(wpa_s->dpp_chirp_freqs); |
| wpa_s->dpp_chirp_freqs = NULL; |
| eloop_cancel_timeout(wpas_dpp_chirp_next, wpa_s, NULL); |
| eloop_cancel_timeout(wpas_dpp_chirp_timeout, wpa_s, NULL); |
| if (wpa_s->scan_res_handler == wpas_dpp_chirp_scan_res_handler) { |
| wpas_abort_ongoing_scan(wpa_s); |
| wpa_s->scan_res_handler = NULL; |
| } |
| } |
| |
| #endif /* CONFIG_DPP2 */ |