+ ssid = wpa_s->current_ssid;
+ if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
+ !ssid->p2p_persistent_group)
+ return;
+
+ for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
+ if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
+ continue;
+
+ if (s->ssid_len == ssid->ssid_len &&
+ os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
+ break;
+ }
+
+ if (s == NULL)
+ return;
+
+ for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
+ if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN, addr,
+ ETH_ALEN) != 0)
+ continue;
+
+ if (i == s->num_p2p_clients - 1)
+ return; /* already the most recent entry */
+
+ /* move the entry to mark it most recent */
+ os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
+ s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
+ (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
+ os_memcpy(s->p2p_client_list +
+ (s->num_p2p_clients - 1) * 2 * ETH_ALEN, addr,
+ ETH_ALEN);
+ os_memset(s->p2p_client_list +
+ (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
+ 0xff, ETH_ALEN);
+ found = 1;
+ break;
+ }
+
+ if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
+ n = os_realloc_array(s->p2p_client_list,
+ s->num_p2p_clients + 1, 2 * ETH_ALEN);
+ if (n == NULL)
+ return;
+ os_memcpy(n + s->num_p2p_clients * 2 * ETH_ALEN, addr,
+ ETH_ALEN);
+ os_memset(n + s->num_p2p_clients * 2 * ETH_ALEN + ETH_ALEN,
+ 0xff, ETH_ALEN);
+ s->p2p_client_list = n;
+ s->num_p2p_clients++;
+ } else if (!found && s->p2p_client_list) {
+ /* Not enough room for an additional entry - drop the oldest
+ * entry */
+ os_memmove(s->p2p_client_list,
+ s->p2p_client_list + 2 * ETH_ALEN,
+ (s->num_p2p_clients - 1) * 2 * ETH_ALEN);
+ os_memcpy(s->p2p_client_list +
+ (s->num_p2p_clients - 1) * 2 * ETH_ALEN,
+ addr, ETH_ALEN);
+ os_memset(s->p2p_client_list +
+ (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
+ 0xff, ETH_ALEN);
+ }
+
+ if (p2p_wpa_s->conf->update_config &&
+ wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
+ wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
+}
+
+
+static void wpas_p2p_group_started(struct wpa_supplicant *wpa_s,
+ int go, struct wpa_ssid *ssid, int freq,
+ const u8 *psk, const char *passphrase,
+ const u8 *go_dev_addr, int persistent,
+ const char *extra)
+{
+ const char *ssid_txt;
+ char psk_txt[65];
+
+ if (psk)
+ wpa_snprintf_hex(psk_txt, sizeof(psk_txt), psk, 32);
+ else
+ psk_txt[0] = '\0';
+
+ if (ssid)
+ ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
+ else
+ ssid_txt = "";
+
+ if (passphrase && passphrase[0] == '\0')
+ passphrase = NULL;
+
+ /*
+ * Include PSK/passphrase only in the control interface message and
+ * leave it out from the debug log entry.
+ */
+ wpa_msg_global_ctrl(wpa_s->parent, MSG_INFO,
+ P2P_EVENT_GROUP_STARTED
+ "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
+ MACSTR "%s%s",
+ wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
+ psk ? " psk=" : "", psk_txt,
+ passphrase ? " passphrase=\"" : "",
+ passphrase ? passphrase : "",
+ passphrase ? "\"" : "",
+ MAC2STR(go_dev_addr),
+ persistent ? " [PERSISTENT]" : "", extra);
+ wpa_printf(MSG_INFO, P2P_EVENT_GROUP_STARTED
+ "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR "%s%s",
+ wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
+ MAC2STR(go_dev_addr), persistent ? " [PERSISTENT]" : "",
+ extra);
+}
+
+
+static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
+ int success, int already_deleted)
+{
+ struct wpa_ssid *ssid;
+ int client;
+ int persistent;
+ u8 go_dev_addr[ETH_ALEN];
+ int network_id = -1;
+
+ /*
+ * This callback is likely called for the main interface. Update wpa_s
+ * to use the group interface if a new interface was created for the
+ * group.
+ */
+ if (wpa_s->global->p2p_group_formation)
+ wpa_s = wpa_s->global->p2p_group_formation;
+ if (wpa_s->p2p_go_group_formation_completed) {
+ wpa_s->global->p2p_group_formation = NULL;
+ wpa_s->p2p_in_provisioning = 0;
+ }
+ wpa_s->p2p_in_invitation = 0;
+ wpa_s->group_formation_reported = 1;
+
+ if (!success) {
+ wpa_msg_global(wpa_s->parent, MSG_INFO,
+ P2P_EVENT_GROUP_FORMATION_FAILURE);
+ wpas_notify_p2p_group_formation_failure(wpa_s, "");
+ if (already_deleted)
+ return;
+ wpas_p2p_group_delete(wpa_s,
+ P2P_GROUP_REMOVAL_FORMATION_FAILED);
+ return;
+ }
+
+ wpa_msg_global(wpa_s->parent, MSG_INFO,
+ P2P_EVENT_GROUP_FORMATION_SUCCESS);
+
+ ssid = wpa_s->current_ssid;
+ if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
+ ssid->mode = WPAS_MODE_P2P_GO;
+ p2p_group_notif_formation_done(wpa_s->p2p_group);
+ wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
+ }
+
+ persistent = 0;
+ if (ssid) {
+ client = ssid->mode == WPAS_MODE_INFRA;
+ if (ssid->mode == WPAS_MODE_P2P_GO) {
+ persistent = ssid->p2p_persistent_group;
+ os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
+ ETH_ALEN);
+ } else
+ persistent = wpas_p2p_persistent_group(wpa_s,
+ go_dev_addr,
+ ssid->ssid,
+ ssid->ssid_len);
+ } else {
+ client = wpa_s->p2p_group_interface ==
+ P2P_GROUP_INTERFACE_CLIENT;
+ os_memset(go_dev_addr, 0, ETH_ALEN);
+ }
+
+ wpa_s->show_group_started = 0;
+ if (client) {
+ /*
+ * Indicate event only after successfully completed 4-way
+ * handshake, i.e., when the interface is ready for data
+ * packets.
+ */
+ wpa_s->show_group_started = 1;
+ } else {
+ wpas_p2p_group_started(wpa_s, 1, ssid,
+ ssid ? ssid->frequency : 0,
+ ssid && ssid->passphrase == NULL &&
+ ssid->psk_set ? ssid->psk : NULL,
+ ssid ? ssid->passphrase : NULL,
+ go_dev_addr, persistent, "");
+ wpas_p2p_cross_connect_setup(wpa_s);
+ wpas_p2p_set_group_idle_timeout(wpa_s);
+ }
+
+ if (persistent)
+ network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
+ ssid, go_dev_addr);
+ else {
+ os_free(wpa_s->global->add_psk);
+ wpa_s->global->add_psk = NULL;
+ }
+ if (network_id < 0 && ssid)
+ network_id = ssid->id;
+ if (!client) {
+ wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
+ os_get_reltime(&wpa_s->global->p2p_go_wait_client);
+ }
+}
+
+
+struct send_action_work {
+ unsigned int freq;
+ u8 dst[ETH_ALEN];
+ u8 src[ETH_ALEN];
+ u8 bssid[ETH_ALEN];
+ size_t len;
+ unsigned int wait_time;
+ u8 buf[0];
+};
+
+
+static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
+ void *timeout_ctx)
+{
+ struct wpa_supplicant *wpa_s = eloop_ctx;
+
+ if (!wpa_s->p2p_send_action_work)
+ return;
+
+ wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
+ os_free(wpa_s->p2p_send_action_work->ctx);
+ radio_work_done(wpa_s->p2p_send_action_work);
+ wpa_s->p2p_send_action_work = NULL;
+}
+
+
+static void wpas_p2p_action_tx_clear(struct wpa_supplicant *wpa_s)
+{
+ if (wpa_s->p2p_send_action_work) {
+ struct send_action_work *awork;
+ awork = wpa_s->p2p_send_action_work->ctx;
+ if (awork->wait_time == 0) {
+ os_free(awork);
+ radio_work_done(wpa_s->p2p_send_action_work);
+ wpa_s->p2p_send_action_work = NULL;
+ } else {
+ /*
+ * In theory, this should not be needed, but number of
+ * places in the P2P code is still using non-zero wait
+ * time for the last Action frame in the sequence and
+ * some of these do not call send_action_done().
+ */
+ eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
+ wpa_s, NULL);
+ eloop_register_timeout(
+ 0, awork->wait_time * 1000,
+ wpas_p2p_send_action_work_timeout,
+ wpa_s, NULL);
+ }
+ }
+}
+
+
+static void wpas_p2p_send_action_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)
+{
+ enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
+
+ wpas_p2p_action_tx_clear(wpa_s);
+
+ if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
+ return;
+
+ switch (result) {
+ case OFFCHANNEL_SEND_ACTION_SUCCESS:
+ res = P2P_SEND_ACTION_SUCCESS;
+ break;
+ case OFFCHANNEL_SEND_ACTION_NO_ACK:
+ res = P2P_SEND_ACTION_NO_ACK;
+ break;
+ case OFFCHANNEL_SEND_ACTION_FAILED:
+ res = P2P_SEND_ACTION_FAILED;
+ break;
+ }
+
+ p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
+
+ if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
+ wpa_s->pending_pd_before_join &&
+ (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
+ os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
+ wpa_s->p2p_fallback_to_go_neg) {
+ wpa_s->pending_pd_before_join = 0;
+ wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
+ "during p2p_connect-auto");
+ wpa_msg_global(wpa_s->parent, MSG_INFO,
+ P2P_EVENT_FALLBACK_TO_GO_NEG
+ "reason=no-ACK-to-PD-Req");
+ wpas_p2p_fallback_to_go_neg(wpa_s, 0);
+ return;
+ }
+}
+
+
+static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
+{
+ struct wpa_supplicant *wpa_s = work->wpa_s;
+ struct send_action_work *awork = work->ctx;
+
+ if (deinit) {
+ if (work->started) {
+ eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
+ wpa_s, NULL);
+ wpa_s->p2p_send_action_work = NULL;
+ offchannel_send_action_done(wpa_s);
+ }
+ os_free(awork);
+ return;
+ }
+
+ if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
+ awork->bssid, awork->buf, awork->len,
+ awork->wait_time,
+ wpas_p2p_send_action_tx_status, 1) < 0) {
+ os_free(awork);
+ radio_work_done(work);
+ return;
+ }
+ wpa_s->p2p_send_action_work = work;
+}
+
+
+static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
+ unsigned int freq, const u8 *dst,
+ const u8 *src, const u8 *bssid, const u8 *buf,
+ size_t len, unsigned int wait_time)
+{
+ struct send_action_work *awork;
+
+ if (wpa_s->p2p_send_action_work) {
+ wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
+ return -1;
+ }
+
+ awork = os_zalloc(sizeof(*awork) + len);
+ if (awork == NULL)
+ return -1;
+
+ awork->freq = freq;
+ os_memcpy(awork->dst, dst, ETH_ALEN);
+ os_memcpy(awork->src, src, ETH_ALEN);
+ os_memcpy(awork->bssid, bssid, ETH_ALEN);
+ awork->len = len;
+ awork->wait_time = wait_time;
+ os_memcpy(awork->buf, buf, len);
+
+ if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
+ wpas_send_action_cb, awork) < 0) {
+ os_free(awork);
+ return -1;
+ }
+
+ return 0;
+}
+
+
+static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
+ const u8 *src, const u8 *bssid, const u8 *buf,
+ size_t len, unsigned int wait_time)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ int listen_freq = -1, send_freq = -1;
+
+ if (wpa_s->p2p_listen_work)
+ listen_freq = wpa_s->p2p_listen_work->freq;
+ if (wpa_s->p2p_send_action_work)
+ send_freq = wpa_s->p2p_send_action_work->freq;
+ if (listen_freq != (int) freq && send_freq != (int) freq) {
+ wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
+ listen_freq, send_freq);
+ return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
+ len, wait_time);
+ }
+
+ wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
+ return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
+ wait_time,
+ wpas_p2p_send_action_tx_status, 1);
+}
+
+
+static void wpas_send_action_done(void *ctx)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+
+ if (wpa_s->p2p_send_action_work) {
+ eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
+ wpa_s, NULL);
+ os_free(wpa_s->p2p_send_action_work->ctx);
+ radio_work_done(wpa_s->p2p_send_action_work);
+ wpa_s->p2p_send_action_work = NULL;
+ }
+
+ offchannel_send_action_done(wpa_s);
+}
+
+
+static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
+ struct p2p_go_neg_results *params)
+{
+ if (wpa_s->go_params == NULL) {
+ wpa_s->go_params = os_malloc(sizeof(*params));
+ if (wpa_s->go_params == NULL)
+ return -1;
+ }
+ os_memcpy(wpa_s->go_params, params, sizeof(*params));
+ return 0;
+}
+
+
+static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
+ struct p2p_go_neg_results *res)
+{
+ wpa_s->group_formation_reported = 0;
+ wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
+ " dev_addr " MACSTR " wps_method %d",
+ MAC2STR(res->peer_interface_addr),
+ MAC2STR(res->peer_device_addr), res->wps_method);
+ wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
+ res->ssid, res->ssid_len);
+ wpa_supplicant_ap_deinit(wpa_s);
+ wpas_copy_go_neg_results(wpa_s, res);
+ if (res->wps_method == WPS_PBC) {
+ wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
+#ifdef CONFIG_WPS_NFC
+ } else if (res->wps_method == WPS_NFC) {
+ wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
+ res->peer_interface_addr,
+ wpa_s->parent->p2p_oob_dev_pw,
+ wpa_s->parent->p2p_oob_dev_pw_id, 1,
+ wpa_s->parent->p2p_oob_dev_pw_id ==
+ DEV_PW_NFC_CONNECTION_HANDOVER ?
+ wpa_s->parent->p2p_peer_oob_pubkey_hash :
+ NULL,
+ NULL, 0, 0);
+#endif /* CONFIG_WPS_NFC */
+ } else {
+ u16 dev_pw_id = DEV_PW_DEFAULT;
+ if (wpa_s->p2p_wps_method == WPS_P2PS)
+ dev_pw_id = DEV_PW_P2PS_DEFAULT;
+ if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
+ dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
+ wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
+ wpa_s->p2p_pin, 1, dev_pw_id);
+ }
+}
+
+
+static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
+ struct wpa_ssid *ssid)
+{
+ struct wpa_ssid *persistent;
+ struct psk_list_entry *psk;
+ struct hostapd_data *hapd;
+
+ if (!wpa_s->ap_iface)
+ return;
+
+ persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
+ ssid->ssid_len);
+ if (persistent == NULL)
+ return;
+
+ hapd = wpa_s->ap_iface->bss[0];
+
+ dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
+ list) {
+ struct hostapd_wpa_psk *hpsk;
+
+ wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
+ MACSTR " psk=%d",
+ MAC2STR(psk->addr), psk->p2p);
+ hpsk = os_zalloc(sizeof(*hpsk));
+ if (hpsk == NULL)
+ break;
+ os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
+ if (psk->p2p)
+ os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
+ else
+ os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
+ hpsk->next = hapd->conf->ssid.wpa_psk;
+ hapd->conf->ssid.wpa_psk = hpsk;
+ }
+}
+
+
+static void p2p_go_dump_common_freqs(struct wpa_supplicant *wpa_s)
+{
+ unsigned int i;
+
+ wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Common group frequencies (len=%u):",
+ wpa_s->p2p_group_common_freqs_num);
+
+ for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++)
+ wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d",
+ i, wpa_s->p2p_group_common_freqs[i]);
+}
+
+
+static void p2p_go_save_group_common_freqs(struct wpa_supplicant *wpa_s,
+ struct p2p_go_neg_results *params)
+{
+ unsigned int i, len = int_array_len(wpa_s->go_params->freq_list);
+
+ wpa_s->p2p_group_common_freqs_num = 0;
+ os_free(wpa_s->p2p_group_common_freqs);
+ wpa_s->p2p_group_common_freqs = os_calloc(len, sizeof(int));
+ if (!wpa_s->p2p_group_common_freqs)
+ return;
+
+ for (i = 0; i < len; i++) {
+ if (!wpa_s->go_params->freq_list[i])
+ break;
+ wpa_s->p2p_group_common_freqs[i] =
+ wpa_s->go_params->freq_list[i];
+ }
+ wpa_s->p2p_group_common_freqs_num = i;
+}
+
+
+static void p2p_config_write(struct wpa_supplicant *wpa_s)
+{
+#ifndef CONFIG_NO_CONFIG_WRITE
+ if (wpa_s->parent->conf->update_config &&
+ wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
+ wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
+#endif /* CONFIG_NO_CONFIG_WRITE */
+}
+
+
+static void p2p_go_configured(void *ctx, void *data)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ struct p2p_go_neg_results *params = data;
+ struct wpa_ssid *ssid;
+ int network_id = -1;
+
+ p2p_go_save_group_common_freqs(wpa_s, params);
+ p2p_go_dump_common_freqs(wpa_s);
+
+ ssid = wpa_s->current_ssid;
+ if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
+ wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
+ if (wpa_s->global->p2p_group_formation == wpa_s)
+ wpa_s->global->p2p_group_formation = NULL;
+ wpas_p2p_group_started(wpa_s, 1, ssid, ssid->frequency,
+ params->passphrase[0] == '\0' ?
+ params->psk : NULL,
+ params->passphrase,
+ wpa_s->global->p2p_dev_addr,
+ params->persistent_group, "");
+ wpa_s->group_formation_reported = 1;
+
+ if (wpa_s->parent->p2ps_method_config_any) {
+ if (is_zero_ether_addr(wpa_s->parent->p2ps_join_addr)) {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "P2PS: Setting default PIN for ANY");
+ wpa_supplicant_ap_wps_pin(wpa_s, NULL,
+ "12345670", NULL, 0,
+ 0);
+ } else {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "P2PS: Setting default PIN for " MACSTR,
+ MAC2STR(wpa_s->parent->p2ps_join_addr));
+ wpa_supplicant_ap_wps_pin(
+ wpa_s, wpa_s->parent->p2ps_join_addr,
+ "12345670", NULL, 0, 0);
+ }
+ wpa_s->parent->p2ps_method_config_any = 0;
+ }
+
+ os_get_reltime(&wpa_s->global->p2p_go_wait_client);
+ if (params->persistent_group) {
+ network_id = wpas_p2p_store_persistent_group(
+ wpa_s->parent, ssid,
+ wpa_s->global->p2p_dev_addr);
+ wpas_p2p_add_psk_list(wpa_s, ssid);
+ }
+ if (network_id < 0)
+ network_id = ssid->id;
+ wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
+ wpas_p2p_cross_connect_setup(wpa_s);
+ wpas_p2p_set_group_idle_timeout(wpa_s);
+
+ if (wpa_s->p2p_first_connection_timeout) {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "P2P: Start group formation timeout of %d seconds until first data connection on GO",
+ wpa_s->p2p_first_connection_timeout);
+ wpa_s->p2p_go_group_formation_completed = 0;
+ wpa_s->global->p2p_group_formation = wpa_s;
+ eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
+ wpa_s->parent, NULL);
+ eloop_register_timeout(
+ wpa_s->p2p_first_connection_timeout, 0,
+ wpas_p2p_group_formation_timeout,
+ wpa_s->parent, NULL);
+ }
+
+ return;
+ }
+
+ wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
+ if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
+ params->peer_interface_addr)) {
+ wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
+ "filtering");
+ return;
+ }
+ if (params->wps_method == WPS_PBC) {
+ wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
+ params->peer_device_addr);
+#ifdef CONFIG_WPS_NFC
+ } else if (params->wps_method == WPS_NFC) {
+ if (wpa_s->parent->p2p_oob_dev_pw_id !=
+ DEV_PW_NFC_CONNECTION_HANDOVER &&
+ !wpa_s->parent->p2p_oob_dev_pw) {
+ wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
+ return;
+ }
+ wpas_ap_wps_add_nfc_pw(
+ wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
+ wpa_s->parent->p2p_oob_dev_pw,
+ wpa_s->parent->p2p_peer_oob_pk_hash_known ?
+ wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
+#endif /* CONFIG_WPS_NFC */
+ } else if (wpa_s->p2p_pin[0])
+ wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
+ wpa_s->p2p_pin, NULL, 0, 0);
+ os_free(wpa_s->go_params);
+ wpa_s->go_params = NULL;
+}
+
+
+static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
+ struct p2p_go_neg_results *params,
+ int group_formation)
+{
+ struct wpa_ssid *ssid;
+
+ wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
+ if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
+ "results");
+ return;
+ }
+
+ ssid = wpa_config_add_network(wpa_s->conf);
+ if (ssid == NULL) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
+ return;
+ }
+
+ wpa_s->show_group_started = 0;
+ wpa_s->p2p_go_group_formation_completed = 0;
+ wpa_s->group_formation_reported = 0;
+ os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
+
+ wpa_config_set_network_defaults(ssid);
+ ssid->temporary = 1;
+ ssid->p2p_group = 1;
+ ssid->p2p_persistent_group = params->persistent_group;
+ ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
+ WPAS_MODE_P2P_GO;
+ ssid->frequency = params->freq;
+ ssid->ht40 = params->ht40;
+ ssid->vht = params->vht;
+ ssid->ssid = os_zalloc(params->ssid_len + 1);
+ if (ssid->ssid) {
+ os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
+ ssid->ssid_len = params->ssid_len;
+ }
+ ssid->auth_alg = WPA_AUTH_ALG_OPEN;
+ ssid->key_mgmt = WPA_KEY_MGMT_PSK;
+ ssid->proto = WPA_PROTO_RSN;
+ ssid->pairwise_cipher = WPA_CIPHER_CCMP;
+ ssid->group_cipher = WPA_CIPHER_CCMP;
+ if (params->freq > 56160) {
+ /*
+ * Enable GCMP instead of CCMP as pairwise_cipher and
+ * group_cipher in 60 GHz.
+ */
+ ssid->pairwise_cipher = WPA_CIPHER_GCMP;
+ ssid->group_cipher = WPA_CIPHER_GCMP;
+ }
+ if (os_strlen(params->passphrase) > 0) {
+ ssid->passphrase = os_strdup(params->passphrase);
+ if (ssid->passphrase == NULL) {
+ wpa_msg_global(wpa_s, MSG_ERROR,
+ "P2P: Failed to copy passphrase for GO");
+ wpa_config_remove_network(wpa_s->conf, ssid->id);
+ return;
+ }
+ } else
+ ssid->passphrase = NULL;
+ ssid->psk_set = params->psk_set;
+ if (ssid->psk_set)
+ os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
+ else if (ssid->passphrase)
+ wpa_config_update_psk(ssid);
+ ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
+
+ wpa_s->ap_configured_cb = p2p_go_configured;
+ wpa_s->ap_configured_cb_ctx = wpa_s;
+ wpa_s->ap_configured_cb_data = wpa_s->go_params;
+ wpa_s->scan_req = NORMAL_SCAN_REQ;
+ wpa_s->connect_without_scan = ssid;
+ wpa_s->reassociate = 1;
+ wpa_s->disconnected = 0;
+ wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
+ "start GO)");
+ wpa_supplicant_req_scan(wpa_s, 0, 0);
+}
+
+
+static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
+ const struct wpa_supplicant *src)
+{
+ struct wpa_config *d;
+ const struct wpa_config *s;
+
+ d = dst->conf;
+ s = src->conf;
+
+#define C(n) if (s->n) d->n = os_strdup(s->n)
+ C(device_name);
+ C(manufacturer);
+ C(model_name);
+ C(model_number);
+ C(serial_number);
+ C(config_methods);
+#undef C
+
+ os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
+ os_memcpy(d->sec_device_type, s->sec_device_type,
+ sizeof(d->sec_device_type));
+ d->num_sec_device_types = s->num_sec_device_types;
+
+ d->p2p_group_idle = s->p2p_group_idle;
+ d->p2p_go_freq_change_policy = s->p2p_go_freq_change_policy;
+ d->p2p_intra_bss = s->p2p_intra_bss;
+ d->persistent_reconnect = s->persistent_reconnect;
+ d->max_num_sta = s->max_num_sta;
+ d->pbc_in_m1 = s->pbc_in_m1;
+ d->ignore_old_scan_res = s->ignore_old_scan_res;
+ d->beacon_int = s->beacon_int;
+ d->dtim_period = s->dtim_period;
+ d->p2p_go_ctwindow = s->p2p_go_ctwindow;
+ d->disassoc_low_ack = s->disassoc_low_ack;
+ d->disable_scan_offload = s->disable_scan_offload;
+ d->passive_scan = s->passive_scan;
+
+ if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey) {
+ d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
+ d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
+ }
+ d->p2p_cli_probe = s->p2p_cli_probe;
+}
+
+
+static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
+ char *ifname, size_t len)
+{
+ char *ifname_ptr = wpa_s->ifname;
+
+ if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
+ os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
+ ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
+ }
+
+ os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
+ if (os_strlen(ifname) >= IFNAMSIZ &&
+ os_strlen(wpa_s->ifname) < IFNAMSIZ) {
+ int res;
+
+ /* Try to avoid going over the IFNAMSIZ length limit */
+ res = os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
+ if (os_snprintf_error(len, res) && len)
+ ifname[len - 1] = '\0';
+ }
+}
+
+
+static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
+ enum wpa_driver_if_type type)
+{
+ char ifname[120], force_ifname[120];
+
+ if (wpa_s->pending_interface_name[0]) {
+ wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
+ "- skip creation of a new one");
+ if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
+ wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
+ "unknown?! ifname='%s'",
+ wpa_s->pending_interface_name);
+ return -1;
+ }
+ return 0;
+ }
+
+ wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
+ force_ifname[0] = '\0';
+
+ wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
+ ifname);
+ wpa_s->p2p_group_idx++;
+
+ wpa_s->pending_interface_type = type;
+ if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
+ wpa_s->pending_interface_addr, NULL) < 0) {
+ wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
+ "interface");
+ return -1;
+ }
+
+ if (force_ifname[0]) {
+ wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
+ force_ifname);
+ os_strlcpy(wpa_s->pending_interface_name, force_ifname,
+ sizeof(wpa_s->pending_interface_name));
+ } else
+ os_strlcpy(wpa_s->pending_interface_name, ifname,
+ sizeof(wpa_s->pending_interface_name));
+ wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
+ MACSTR, wpa_s->pending_interface_name,
+ MAC2STR(wpa_s->pending_interface_addr));
+
+ return 0;
+}
+
+
+static void wpas_p2p_remove_pending_group_interface(
+ struct wpa_supplicant *wpa_s)
+{
+ if (!wpa_s->pending_interface_name[0] ||
+ is_zero_ether_addr(wpa_s->pending_interface_addr))
+ return; /* No pending virtual interface */
+
+ wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
+ wpa_s->pending_interface_name);
+ wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
+ wpa_s->pending_interface_name);
+ os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
+ wpa_s->pending_interface_name[0] = '\0';
+ wpa_s->global->pending_group_iface_for_p2ps = 0;
+}
+
+
+static struct wpa_supplicant *
+wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
+{
+ struct wpa_interface iface;
+ struct wpa_supplicant *group_wpa_s;
+
+ if (!wpa_s->pending_interface_name[0]) {
+ wpa_printf(MSG_ERROR, "P2P: No pending group interface");
+ if (!wpas_p2p_create_iface(wpa_s))
+ return NULL;
+ /*
+ * Something has forced us to remove the pending interface; try
+ * to create a new one and hope for the best that we will get
+ * the same local address.
+ */
+ if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
+ WPA_IF_P2P_CLIENT) < 0)
+ return NULL;
+ }
+
+ os_memset(&iface, 0, sizeof(iface));
+ iface.ifname = wpa_s->pending_interface_name;
+ iface.driver = wpa_s->driver->name;
+ if (wpa_s->conf->ctrl_interface == NULL &&
+ wpa_s->parent != wpa_s &&
+ wpa_s->p2p_mgmt &&
+ (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
+ iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
+ else
+ iface.ctrl_interface = wpa_s->conf->ctrl_interface;
+ iface.driver_param = wpa_s->conf->driver_param;
+ group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
+ if (group_wpa_s == NULL) {
+ wpa_printf(MSG_ERROR, "P2P: Failed to create new "
+ "wpa_supplicant interface");
+ return NULL;
+ }
+ wpa_s->pending_interface_name[0] = '\0';
+ group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
+ P2P_GROUP_INTERFACE_CLIENT;
+ wpa_s->global->p2p_group_formation = group_wpa_s;
+ wpa_s->global->pending_group_iface_for_p2ps = 0;
+
+ wpas_p2p_clone_config(group_wpa_s, wpa_s);
+
+ return group_wpa_s;
+}
+
+
+static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
+ void *timeout_ctx)
+{
+ struct wpa_supplicant *wpa_s = eloop_ctx;
+ wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
+ wpas_p2p_group_formation_failed(wpa_s, 0);
+}
+
+
+static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
+ int already_deleted)
+{
+ eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
+ wpa_s->parent, NULL);
+ if (wpa_s->global->p2p)
+ p2p_group_formation_failed(wpa_s->global->p2p);
+ wpas_group_formation_completed(wpa_s, 0, already_deleted);
+}
+
+
+static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
+{
+ wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
+ eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
+ wpa_s->parent, NULL);
+ eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
+ wpa_s->parent, NULL);
+ wpa_s->global->p2p_fail_on_wps_complete = 0;
+}
+
+
+void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
+{
+ if (wpa_s->global->p2p_group_formation != wpa_s)
+ return;
+ /* Speed up group formation timeout since this cannot succeed */
+ eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
+ wpa_s->parent, NULL);
+ eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
+ wpa_s->parent, NULL);
+}
+
+
+static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+
+ if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
+ wpa_drv_cancel_remain_on_channel(wpa_s);
+ wpa_s->off_channel_freq = 0;
+ wpa_s->roc_waiting_drv_freq = 0;
+ }
+
+ if (res->status) {
+ wpa_msg_global(wpa_s, MSG_INFO,
+ P2P_EVENT_GO_NEG_FAILURE "status=%d",
+ res->status);
+ wpas_notify_p2p_go_neg_completed(wpa_s, res);
+ wpas_p2p_remove_pending_group_interface(wpa_s);
+ return;
+ }
+
+ if (!res->role_go) {
+ /* Inform driver of the operating channel of GO. */
+ wpa_drv_set_prob_oper_freq(wpa_s, res->freq);
+ }
+
+ if (wpa_s->p2p_go_ht40)
+ res->ht40 = 1;
+ if (wpa_s->p2p_go_vht)
+ res->vht = 1;
+
+ wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
+ "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
+ " wps_method=%s",
+ res->role_go ? "GO" : "client", res->freq, res->ht40,
+ MAC2STR(res->peer_device_addr),
+ MAC2STR(res->peer_interface_addr),
+ p2p_wps_method_text(res->wps_method));
+ wpas_notify_p2p_go_neg_completed(wpa_s, res);
+
+ if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
+ struct wpa_ssid *ssid;
+ ssid = wpa_config_get_network(wpa_s->conf,
+ wpa_s->p2p_persistent_id);
+ if (ssid && ssid->disabled == 2 &&
+ ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
+ size_t len = os_strlen(ssid->passphrase);
+ wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
+ "on requested persistent group");
+ os_memcpy(res->passphrase, ssid->passphrase, len);
+ res->passphrase[len] = '\0';
+ }
+ }
+
+ if (wpa_s->create_p2p_iface) {
+ struct wpa_supplicant *group_wpa_s =
+ wpas_p2p_init_group_interface(wpa_s, res->role_go);
+ if (group_wpa_s == NULL) {
+ wpas_p2p_remove_pending_group_interface(wpa_s);
+ eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
+ wpa_s, NULL);
+ wpas_p2p_group_formation_failed(wpa_s, 1);
+ return;
+ }
+ if (group_wpa_s != wpa_s) {
+ os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
+ sizeof(group_wpa_s->p2p_pin));
+ group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
+ }
+ os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
+ wpa_s->pending_interface_name[0] = '\0';
+ group_wpa_s->p2p_in_provisioning = 1;
+
+ if (res->role_go) {
+ wpas_start_wps_go(group_wpa_s, res, 1);
+ } else {
+ os_get_reltime(&group_wpa_s->scan_min_time);
+ wpas_start_wps_enrollee(group_wpa_s, res);
+ }
+ } else {
+ wpa_s->p2p_in_provisioning = 1;
+ wpa_s->global->p2p_group_formation = wpa_s;
+
+ if (res->role_go) {
+ wpas_start_wps_go(wpa_s, res, 1);
+ } else {
+ os_get_reltime(&wpa_s->scan_min_time);
+ wpas_start_wps_enrollee(ctx, res);
+ }
+ }
+
+ wpa_s->p2p_long_listen = 0;
+ eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
+
+ eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
+ eloop_register_timeout(15 + res->peer_config_timeout / 100,
+ (res->peer_config_timeout % 100) * 10000,
+ wpas_p2p_group_formation_timeout, wpa_s, NULL);
+}
+
+
+static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id,
+ u8 go_intent)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
+ " dev_passwd_id=%u go_intent=%u", MAC2STR(src),
+ dev_passwd_id, go_intent);
+
+ wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id, go_intent);
+}
+
+
+static void wpas_dev_found(void *ctx, const u8 *addr,
+ const struct p2p_peer_info *info,
+ int new_device)
+{
+#ifndef CONFIG_NO_STDOUT_DEBUG
+ struct wpa_supplicant *wpa_s = ctx;
+ char devtype[WPS_DEV_TYPE_BUFSIZE];
+ char *wfd_dev_info_hex = NULL;
+
+#ifdef CONFIG_WIFI_DISPLAY
+ wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
+ WFD_SUBELEM_DEVICE_INFO);
+#endif /* CONFIG_WIFI_DISPLAY */
+
+ if (info->p2ps_instance) {
+ char str[256];
+ const u8 *buf = wpabuf_head(info->p2ps_instance);
+ size_t len = wpabuf_len(info->p2ps_instance);
+
+ while (len) {
+ u32 id;
+ u16 methods;
+ u8 str_len;
+
+ if (len < 4 + 2 + 1)
+ break;
+ id = WPA_GET_LE32(buf);
+ buf += sizeof(u32);
+ methods = WPA_GET_BE16(buf);
+ buf += sizeof(u16);
+ str_len = *buf++;
+ if (str_len > len - 4 - 2 - 1)
+ break;
+ os_memcpy(str, buf, str_len);
+ str[str_len] = '\0';
+ buf += str_len;
+ len -= str_len + sizeof(u32) + sizeof(u16) + sizeof(u8);
+
+ wpa_msg_global(wpa_s, MSG_INFO,
+ P2P_EVENT_DEVICE_FOUND MACSTR
+ " p2p_dev_addr=" MACSTR
+ " pri_dev_type=%s name='%s'"
+ " config_methods=0x%x"
+ " dev_capab=0x%x"
+ " group_capab=0x%x"
+ " adv_id=%x asp_svc=%s%s",
+ MAC2STR(addr),
+ MAC2STR(info->p2p_device_addr),
+ wps_dev_type_bin2str(
+ info->pri_dev_type,
+ devtype, sizeof(devtype)),
+ info->device_name, methods,
+ info->dev_capab, info->group_capab,
+ id, str,
+ info->vendor_elems ?
+ " vendor_elems=1" : "");
+ }
+ goto done;
+ }
+
+ wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
+ " p2p_dev_addr=" MACSTR
+ " pri_dev_type=%s name='%s' config_methods=0x%x "
+ "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
+ MAC2STR(addr), MAC2STR(info->p2p_device_addr),
+ wps_dev_type_bin2str(info->pri_dev_type, devtype,
+ sizeof(devtype)),
+ info->device_name, info->config_methods,
+ info->dev_capab, info->group_capab,
+ wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
+ wfd_dev_info_hex ? wfd_dev_info_hex : "",
+ info->vendor_elems ? " vendor_elems=1" : "",
+ new_device);
+
+done:
+ os_free(wfd_dev_info_hex);
+#endif /* CONFIG_NO_STDOUT_DEBUG */
+
+ wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
+}
+
+
+static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+
+ wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
+ "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
+
+ wpas_notify_p2p_device_lost(wpa_s, dev_addr);
+}
+
+
+static void wpas_find_stopped(void *ctx)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
+ wpas_notify_p2p_find_stopped(wpa_s);
+}
+
+
+struct wpas_p2p_listen_work {
+ unsigned int freq;
+ unsigned int duration;
+ struct wpabuf *probe_resp_ie;
+};
+
+
+static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
+{
+ if (lwork == NULL)
+ return;
+ wpabuf_free(lwork->probe_resp_ie);
+ os_free(lwork);
+}
+
+
+static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
+{
+ struct wpas_p2p_listen_work *lwork;
+
+ if (!wpa_s->p2p_listen_work)
+ return;
+
+ lwork = wpa_s->p2p_listen_work->ctx;
+ wpas_p2p_listen_work_free(lwork);
+ radio_work_done(wpa_s->p2p_listen_work);
+ wpa_s->p2p_listen_work = NULL;
+}
+
+
+static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
+{
+ struct wpa_supplicant *wpa_s = work->wpa_s;
+ struct wpas_p2p_listen_work *lwork = work->ctx;
+ unsigned int duration;
+
+ if (deinit) {
+ if (work->started) {
+ wpa_s->p2p_listen_work = NULL;
+ wpas_stop_listen(wpa_s);
+ }
+ wpas_p2p_listen_work_free(lwork);
+ return;
+ }
+
+ wpa_s->p2p_listen_work = work;
+
+ wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
+
+ if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
+ wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
+ "report received Probe Request frames");
+ wpas_p2p_listen_work_done(wpa_s);
+ return;
+ }
+
+ wpa_s->pending_listen_freq = lwork->freq;
+ wpa_s->pending_listen_duration = lwork->duration;
+
+ duration = lwork->duration;
+#ifdef CONFIG_TESTING_OPTIONS
+ if (wpa_s->extra_roc_dur) {
+ wpa_printf(MSG_DEBUG, "TESTING: Increase ROC duration %u -> %u",
+ duration, duration + wpa_s->extra_roc_dur);
+ duration += wpa_s->extra_roc_dur;
+ }
+#endif /* CONFIG_TESTING_OPTIONS */
+
+ if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, duration) < 0) {
+ wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
+ "to remain on channel (%u MHz) for Listen "
+ "state", lwork->freq);
+ wpas_p2p_listen_work_done(wpa_s);
+ wpa_s->pending_listen_freq = 0;
+ return;
+ }
+ wpa_s->off_channel_freq = 0;
+ wpa_s->roc_waiting_drv_freq = lwork->freq;
+}
+
+
+static int wpas_start_listen(void *ctx, unsigned int freq,
+ unsigned int duration,
+ const struct wpabuf *probe_resp_ie)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ struct wpas_p2p_listen_work *lwork;
+
+ if (wpa_s->p2p_listen_work) {
+ wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
+ return -1;
+ }
+
+ lwork = os_zalloc(sizeof(*lwork));
+ if (lwork == NULL)
+ return -1;
+ lwork->freq = freq;
+ lwork->duration = duration;
+ if (probe_resp_ie) {
+ lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
+ if (lwork->probe_resp_ie == NULL) {
+ wpas_p2p_listen_work_free(lwork);
+ return -1;
+ }
+ }
+
+ if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
+ lwork) < 0) {
+ wpas_p2p_listen_work_free(lwork);
+ return -1;
+ }
+
+ return 0;
+}
+
+
+static void wpas_stop_listen(void *ctx)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
+ wpa_drv_cancel_remain_on_channel(wpa_s);
+ wpa_s->off_channel_freq = 0;
+ wpa_s->roc_waiting_drv_freq = 0;
+ }
+ wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
+
+ /*
+ * Don't cancel Probe Request RX reporting for a connected P2P Client
+ * handling Probe Request frames.
+ */
+ if (!wpa_s->p2p_cli_probe)
+ wpa_drv_probe_req_report(wpa_s, 0);
+
+ wpas_p2p_listen_work_done(wpa_s);
+}
+
+
+static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf,
+ unsigned int freq)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1,
+ freq);
+}
+
+
+static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
+ const u8 *peer, const char *params,
+ unsigned int generated_pin)
+{
+ wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
+ " %08d%s", MAC2STR(peer), generated_pin, params);
+}
+
+
+static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
+ const u8 *peer, const char *params)
+{
+ wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
+ "%s", MAC2STR(peer), params);
+}
+
+
+static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
+ const u8 *dev_addr, const u8 *pri_dev_type,
+ const char *dev_name, u16 supp_config_methods,
+ u8 dev_capab, u8 group_capab, const u8 *group_id,
+ size_t group_id_len)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ char devtype[WPS_DEV_TYPE_BUFSIZE];
+ char params[300];
+ u8 empty_dev_type[8];
+ unsigned int generated_pin = 0;
+ struct wpa_supplicant *group = NULL;
+ int res;
+
+ if (group_id) {
+ for (group = wpa_s->global->ifaces; group; group = group->next)
+ {
+ struct wpa_ssid *s = group->current_ssid;
+ if (s != NULL &&
+ s->mode == WPAS_MODE_P2P_GO &&
+ group_id_len - ETH_ALEN == s->ssid_len &&
+ os_memcmp(group_id + ETH_ALEN, s->ssid,
+ s->ssid_len) == 0)
+ break;
+ }
+ }
+
+ if (pri_dev_type == NULL) {
+ os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
+ pri_dev_type = empty_dev_type;
+ }
+ res = os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
+ " pri_dev_type=%s name='%s' config_methods=0x%x "
+ "dev_capab=0x%x group_capab=0x%x%s%s",
+ MAC2STR(dev_addr),
+ wps_dev_type_bin2str(pri_dev_type, devtype,
+ sizeof(devtype)),
+ dev_name, supp_config_methods, dev_capab, group_capab,
+ group ? " group=" : "",
+ group ? group->ifname : "");
+ if (os_snprintf_error(sizeof(params), res))
+ wpa_printf(MSG_DEBUG, "P2P: PD Request event truncated");
+ params[sizeof(params) - 1] = '\0';
+
+ if (config_methods & WPS_CONFIG_DISPLAY) {
+ generated_pin = wps_generate_pin();
+ wpas_prov_disc_local_display(wpa_s, peer, params,
+ generated_pin);
+ } else if (config_methods & WPS_CONFIG_KEYPAD)
+ wpas_prov_disc_local_keypad(wpa_s, peer, params);
+ else if (config_methods & WPS_CONFIG_PUSHBUTTON)
+ wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
+ MACSTR "%s", MAC2STR(peer), params);
+
+ wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
+ P2P_PROV_DISC_SUCCESS,
+ config_methods, generated_pin);
+}
+
+
+static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ unsigned int generated_pin = 0;
+ char params[20];
+
+ if (wpa_s->pending_pd_before_join &&
+ (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
+ os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
+ wpa_s->pending_pd_before_join = 0;
+ wpa_printf(MSG_DEBUG, "P2P: Starting pending "
+ "join-existing-group operation");
+ wpas_p2p_join_start(wpa_s, 0, NULL, 0);
+ return;
+ }
+
+ if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
+ wpa_s->pending_pd_use == AUTO_PD_GO_NEG) {
+ int res;
+
+ res = os_snprintf(params, sizeof(params), " peer_go=%d",
+ wpa_s->pending_pd_use == AUTO_PD_JOIN);
+ if (os_snprintf_error(sizeof(params), res))
+ params[sizeof(params) - 1] = '\0';
+ } else
+ params[0] = '\0';
+
+ if (config_methods & WPS_CONFIG_DISPLAY)
+ wpas_prov_disc_local_keypad(wpa_s, peer, params);
+ else if (config_methods & WPS_CONFIG_KEYPAD) {
+ generated_pin = wps_generate_pin();
+ wpas_prov_disc_local_display(wpa_s, peer, params,
+ generated_pin);
+ } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
+ wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
+ MACSTR "%s", MAC2STR(peer), params);
+
+ wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
+ P2P_PROV_DISC_SUCCESS,
+ config_methods, generated_pin);
+}
+
+
+static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
+ enum p2p_prov_disc_status status,
+ u32 adv_id, const u8 *adv_mac,
+ const char *deferred_session_resp)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+
+ if (wpa_s->p2p_fallback_to_go_neg) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
+ "failed - fall back to GO Negotiation");
+ wpa_msg_global(wpa_s->parent, MSG_INFO,
+ P2P_EVENT_FALLBACK_TO_GO_NEG
+ "reason=PD-failed");
+ wpas_p2p_fallback_to_go_neg(wpa_s, 0);
+ return;
+ }
+
+ if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
+ wpa_s->pending_pd_before_join = 0;
+ wpa_printf(MSG_DEBUG, "P2P: Starting pending "
+ "join-existing-group operation (no ACK for PD "
+ "Req attempts)");
+ wpas_p2p_join_start(wpa_s, 0, NULL, 0);
+ return;
+ }
+
+ if (adv_id && adv_mac && deferred_session_resp) {
+ wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
+ " p2p_dev_addr=" MACSTR " status=%d adv_id=%x"
+ " deferred_session_resp='%s'",
+ MAC2STR(peer), status, adv_id,
+ deferred_session_resp);
+ } else if (adv_id && adv_mac) {
+ wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
+ " p2p_dev_addr=" MACSTR " status=%d adv_id=%x",
+ MAC2STR(peer), status, adv_id);
+ } else {
+ wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
+ " p2p_dev_addr=" MACSTR " status=%d",
+ MAC2STR(peer), status);
+ }
+
+ wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
+ status, 0, 0);
+}
+
+
+static int freq_included(struct wpa_supplicant *wpa_s,
+ const struct p2p_channels *channels,
+ unsigned int freq)
+{
+ if ((channels == NULL || p2p_channels_includes_freq(channels, freq)) &&
+ wpas_p2p_go_is_peer_freq(wpa_s, freq))
+ return 1;
+ return 0;
+}
+
+
+static void wpas_p2p_go_update_common_freqs(struct wpa_supplicant *wpa_s)
+{
+ unsigned int num = P2P_MAX_CHANNELS;
+ int *common_freqs;
+ int ret;
+
+ p2p_go_dump_common_freqs(wpa_s);
+ common_freqs = os_calloc(num, sizeof(int));
+ if (!common_freqs)
+ return;
+
+ ret = p2p_group_get_common_freqs(wpa_s->p2p_group, common_freqs, &num);
+ if (ret < 0) {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "P2P: Failed to get group common freqs");
+ os_free(common_freqs);
+ return;
+ }
+
+ os_free(wpa_s->p2p_group_common_freqs);
+ wpa_s->p2p_group_common_freqs = common_freqs;
+ wpa_s->p2p_group_common_freqs_num = num;
+ p2p_go_dump_common_freqs(wpa_s);
+}
+
+
+/*
+ * Check if the given frequency is one of the possible operating frequencies
+ * set after the completion of the GO Negotiation.
+ */
+static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq)
+{
+ unsigned int i;
+
+ p2p_go_dump_common_freqs(wpa_s);
+
+ /* assume no restrictions */
+ if (!wpa_s->p2p_group_common_freqs_num)
+ return 1;
+
+ for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
+ if (wpa_s->p2p_group_common_freqs[i] == freq)
+ return 1;
+ }
+ return 0;
+}
+
+
+/**
+ * Pick the best frequency to use from all the currently used frequencies.
+ */
+static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
+ struct wpa_used_freq_data *freqs,
+ unsigned int num)
+{
+ unsigned int i, c;
+
+ /* find a candidate freq that is supported by P2P */
+ for (c = 0; c < num; c++)
+ if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
+ break;
+
+ if (c == num)
+ return 0;
+
+ /* once we have a candidate, try to find a 'better' one */
+ for (i = c + 1; i < num; i++) {
+ if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
+ continue;
+
+ /*
+ * 1. Infrastructure station interfaces have higher preference.
+ * 2. P2P Clients have higher preference.
+ * 3. All others.
+ */
+ if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
+ c = i;
+ break;
+ }
+
+ if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
+ c = i;
+ }
+ return freqs[c].freq;
+}
+
+
+static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
+ const u8 *go_dev_addr, const u8 *ssid,
+ size_t ssid_len, int *go, u8 *group_bssid,
+ int *force_freq, int persistent_group,
+ const struct p2p_channels *channels,
+ int dev_pw_id)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ struct wpa_ssid *s;
+ struct wpa_used_freq_data *freqs;
+ struct wpa_supplicant *grp;
+ int best_freq;
+
+ if (!persistent_group) {
+ wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
+ " to join an active group (SSID: %s)",
+ MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
+ if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
+ (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
+ == 0 ||
+ os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
+ wpa_printf(MSG_DEBUG, "P2P: Accept previously "
+ "authorized invitation");
+ goto accept_inv;
+ }
+
+#ifdef CONFIG_WPS_NFC
+ if (dev_pw_id >= 0 && wpa_s->p2p_nfc_tag_enabled &&
+ dev_pw_id == wpa_s->p2p_oob_dev_pw_id) {
+ wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
+ wpa_s->p2p_wps_method = WPS_NFC;
+ wpa_s->pending_join_wps_method = WPS_NFC;
+ os_memcpy(wpa_s->pending_join_dev_addr,
+ go_dev_addr, ETH_ALEN);
+ os_memcpy(wpa_s->pending_join_iface_addr,
+ bssid, ETH_ALEN);
+ goto accept_inv;
+ }
+#endif /* CONFIG_WPS_NFC */
+
+ /*
+ * Do not accept the invitation automatically; notify user and
+ * request approval.
+ */
+ return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
+ }
+
+ grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
+ if (grp) {
+ wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
+ "running persistent group");
+ if (*go)
+ os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
+ goto accept_inv;
+ }
+
+ if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
+ os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
+ wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
+ "invitation to re-invoke a persistent group");
+ os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
+ } else if (!wpa_s->conf->persistent_reconnect)
+ return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
+
+ for (s = wpa_s->conf->ssid; s; s = s->next) {
+ if (s->disabled == 2 &&
+ os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
+ s->ssid_len == ssid_len &&
+ os_memcmp(ssid, s->ssid, ssid_len) == 0)
+ break;
+ }
+
+ if (!s) {
+ wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
+ " requested reinvocation of an unknown group",
+ MAC2STR(sa));
+ return P2P_SC_FAIL_UNKNOWN_GROUP;
+ }
+
+ if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
+ *go = 1;
+ if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
+ wpa_printf(MSG_DEBUG, "P2P: The only available "
+ "interface is already in use - reject "
+ "invitation");
+ return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
+ }
+ os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
+ } else if (s->mode == WPAS_MODE_P2P_GO) {
+ *go = 1;
+ if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
+ {
+ wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
+ "interface address for the group");
+ return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
+ }
+ os_memcpy(group_bssid, wpa_s->pending_interface_addr,
+ ETH_ALEN);
+ }
+
+accept_inv:
+ wpas_p2p_set_own_freq_preference(wpa_s, 0);
+
+ best_freq = 0;
+ freqs = os_calloc(wpa_s->num_multichan_concurrent,
+ sizeof(struct wpa_used_freq_data));
+ if (freqs) {
+ int num_channels = wpa_s->num_multichan_concurrent;
+ int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
+ best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
+ os_free(freqs);
+ }
+
+ /* Get one of the frequencies currently in use */
+ if (best_freq > 0) {
+ wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
+ wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
+
+ if (wpa_s->num_multichan_concurrent < 2 ||
+ wpas_p2p_num_unused_channels(wpa_s) < 1) {
+ wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
+ *force_freq = best_freq;
+ }
+ }
+
+ if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
+ wpas_p2p_num_unused_channels(wpa_s) > 0) {
+ if (*go == 0) {
+ /* We are the client */
+ wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
+ "running a GO but we are capable of MCC, "
+ "figure out the best channel to use");
+ *force_freq = 0;
+ } else if (!freq_included(wpa_s, channels, *force_freq)) {
+ /* We are the GO, and *force_freq is not in the
+ * intersection */
+ wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
+ "in intersection but we are capable of MCC, "
+ "figure out the best channel to use",
+ *force_freq);
+ *force_freq = 0;
+ }
+ }
+
+ return P2P_SC_SUCCESS;
+}
+
+
+static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
+ const u8 *ssid, size_t ssid_len,
+ const u8 *go_dev_addr, u8 status,
+ int op_freq)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ struct wpa_ssid *s;
+
+ for (s = wpa_s->conf->ssid; s; s = s->next) {
+ if (s->disabled == 2 &&
+ s->ssid_len == ssid_len &&
+ os_memcmp(ssid, s->ssid, ssid_len) == 0)
+ break;
+ }
+
+ if (status == P2P_SC_SUCCESS) {
+ wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
+ " was accepted; op_freq=%d MHz, SSID=%s",
+ MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
+ if (s) {
+ int go = s->mode == WPAS_MODE_P2P_GO;
+ wpas_p2p_group_add_persistent(
+ wpa_s, s, go, 0, op_freq, 0, 0, NULL,
+ go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0,
+ 1);
+ } else if (bssid) {
+ wpa_s->user_initiated_pd = 0;
+ wpas_p2p_join(wpa_s, bssid, go_dev_addr,
+ wpa_s->p2p_wps_method, 0, op_freq,
+ ssid, ssid_len);
+ }
+ return;
+ }
+
+ if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
+ wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
+ " was rejected (status %u)", MAC2STR(sa), status);
+ return;
+ }
+
+ if (!s) {
+ if (bssid) {
+ wpa_msg_global(wpa_s, MSG_INFO,
+ P2P_EVENT_INVITATION_RECEIVED
+ "sa=" MACSTR " go_dev_addr=" MACSTR
+ " bssid=" MACSTR " unknown-network",
+ MAC2STR(sa), MAC2STR(go_dev_addr),
+ MAC2STR(bssid));
+ } else {
+ wpa_msg_global(wpa_s, MSG_INFO,
+ P2P_EVENT_INVITATION_RECEIVED
+ "sa=" MACSTR " go_dev_addr=" MACSTR
+ " unknown-network",
+ MAC2STR(sa), MAC2STR(go_dev_addr));
+ }
+ wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr,
+ bssid, 0, op_freq);
+ return;
+ }
+
+ if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
+ wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
+ "sa=" MACSTR " persistent=%d freq=%d",
+ MAC2STR(sa), s->id, op_freq);
+ } else {
+ wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
+ "sa=" MACSTR " persistent=%d",
+ MAC2STR(sa), s->id);
+ }
+ wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr, bssid,
+ s->id, op_freq);
+}
+
+
+static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
+ struct wpa_ssid *ssid,
+ const u8 *peer, int inv)
+{
+ size_t i;
+ struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
+
+ if (ssid == NULL)
+ return;
+
+ for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
+ if (os_memcmp(ssid->p2p_client_list + i * 2 * ETH_ALEN, peer,
+ ETH_ALEN) == 0)
+ break;
+ }
+ if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
+ if (ssid->mode != WPAS_MODE_P2P_GO &&
+ os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
+ wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
+ "due to invitation result", ssid->id);
+ wpas_notify_network_removed(wpa_s, ssid);
+ wpa_config_remove_network(wpa_s->conf, ssid->id);
+ return;
+ }
+ return; /* Peer not found in client list */
+ }
+
+ wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
+ "group %d client list%s",
+ MAC2STR(peer), ssid->id,
+ inv ? " due to invitation result" : "");
+ os_memmove(ssid->p2p_client_list + i * 2 * ETH_ALEN,
+ ssid->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
+ (ssid->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
+ ssid->num_p2p_clients--;
+ if (p2p_wpa_s->conf->update_config &&
+ wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
+ wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
+}
+
+
+static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
+ const u8 *peer)
+{
+ struct wpa_ssid *ssid;
+
+ wpa_s = wpa_s->global->p2p_invite_group;
+ if (wpa_s == NULL)
+ return; /* No known invitation group */
+ ssid = wpa_s->current_ssid;
+ if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
+ !ssid->p2p_persistent_group)
+ return; /* Not operating as a GO in persistent group */
+ ssid = wpas_p2p_get_persistent(wpa_s->parent, peer,
+ ssid->ssid, ssid->ssid_len);
+ wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
+}
+
+
+static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
+ const struct p2p_channels *channels,
+ const u8 *peer, int neg_freq,
+ int peer_oper_freq)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ struct wpa_ssid *ssid;
+ int freq;
+
+ if (bssid) {
+ wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
+ "status=%d " MACSTR,
+ status, MAC2STR(bssid));
+ } else {
+ wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
+ "status=%d ", status);
+ }
+ wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
+
+ wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
+ status, MAC2STR(peer));
+ if (wpa_s->pending_invite_ssid_id == -1) {
+ if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
+ wpas_remove_persistent_client(wpa_s, peer);
+ return; /* Invitation to active group */
+ }
+
+ if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
+ wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
+ "invitation exchange to indicate readiness for "
+ "re-invocation");
+ }
+
+ if (status != P2P_SC_SUCCESS) {
+ if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
+ ssid = wpa_config_get_network(
+ wpa_s->conf, wpa_s->pending_invite_ssid_id);
+ wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
+ }
+ wpas_p2p_remove_pending_group_interface(wpa_s);
+ return;
+ }
+
+ ssid = wpa_config_get_network(wpa_s->conf,
+ wpa_s->pending_invite_ssid_id);
+ if (ssid == NULL) {
+ wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
+ "data matching with invitation");
+ return;
+ }
+
+ /*
+ * The peer could have missed our ctrl::ack frame for Invitation
+ * Response and continue retransmitting the frame. To reduce the
+ * likelihood of the peer not getting successful TX status for the
+ * Invitation Response frame, wait a short time here before starting
+ * the persistent group so that we will remain on the current channel to
+ * acknowledge any possible retransmission from the peer.
+ */
+ wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
+ "starting persistent group");
+ os_sleep(0, 50000);
+
+ if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
+ freq_included(wpa_s, channels, neg_freq))
+ freq = neg_freq;
+ else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
+ freq_included(wpa_s, channels, peer_oper_freq))
+ freq = peer_oper_freq;
+ else
+ freq = 0;
+
+ wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
+ freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
+ wpas_p2p_group_add_persistent(wpa_s, ssid,
+ ssid->mode == WPAS_MODE_P2P_GO,
+ wpa_s->p2p_persistent_go_freq,
+ freq,
+ wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
+ channels,
+ ssid->mode == WPAS_MODE_P2P_GO ?
+ P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
+ 0, 1);
+}
+
+
+static int wpas_p2p_disallowed_freq(struct wpa_global *global,
+ unsigned int freq)
+{
+ if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
+ return 1;
+ return freq_range_list_includes(&global->p2p_disallow_freq, freq);
+}
+
+
+static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
+{
+ reg->channel[reg->channels] = chan;
+ reg->channels++;
+}
+
+
+static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
+ struct p2p_channels *chan,
+ struct p2p_channels *cli_chan)
+{
+ int i, cla = 0;
+
+ wpa_s->global->p2p_24ghz_social_channels = 1;
+
+ os_memset(cli_chan, 0, sizeof(*cli_chan));
+
+ wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
+ "band");
+
+ /* Operating class 81 - 2.4 GHz band channels 1..13 */
+ chan->reg_class[cla].reg_class = 81;
+ chan->reg_class[cla].channels = 0;
+ for (i = 0; i < 11; i++) {
+ if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
+ wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
+ }
+ if (chan->reg_class[cla].channels)
+ cla++;
+
+ wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
+ "band");
+
+ /* Operating class 115 - 5 GHz, channels 36-48 */
+ chan->reg_class[cla].reg_class = 115;
+ chan->reg_class[cla].channels = 0;
+ if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
+ wpas_p2p_add_chan(&chan->reg_class[cla], 36);
+ if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
+ wpas_p2p_add_chan(&chan->reg_class[cla], 40);
+ if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
+ wpas_p2p_add_chan(&chan->reg_class[cla], 44);
+ if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
+ wpas_p2p_add_chan(&chan->reg_class[cla], 48);
+ if (chan->reg_class[cla].channels)
+ cla++;
+
+ wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
+ "band");
+
+ /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
+ chan->reg_class[cla].reg_class = 124;
+ chan->reg_class[cla].channels = 0;
+ if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
+ wpas_p2p_add_chan(&chan->reg_class[cla], 149);
+ if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
+ wpas_p2p_add_chan(&chan->reg_class[cla], 153);
+ if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
+ wpas_p2p_add_chan(&chan->reg_class[cla], 157);
+ if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
+ wpas_p2p_add_chan(&chan->reg_class[cla], 161);
+ if (chan->reg_class[cla].channels)
+ cla++;
+
+ chan->reg_classes = cla;
+ return 0;
+}
+
+
+static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
+ u16 num_modes,
+ enum hostapd_hw_mode mode)
+{
+ u16 i;
+
+ for (i = 0; i < num_modes; i++) {
+ if (modes[i].mode == mode)
+ return &modes[i];
+ }
+
+ return NULL;
+}
+
+
+enum chan_allowed {
+ NOT_ALLOWED, NO_IR, ALLOWED
+};
+
+static int has_channel(struct wpa_global *global,
+ struct hostapd_hw_modes *mode, u8 chan, int *flags)
+{
+ int i;
+ unsigned int freq;
+
+ freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
+ chan * 5;
+ if (wpas_p2p_disallowed_freq(global, freq))
+ return NOT_ALLOWED;
+
+ for (i = 0; i < mode->num_channels; i++) {
+ if (mode->channels[i].chan == chan) {
+ if (flags)
+ *flags = mode->channels[i].flag;
+ if (mode->channels[i].flag &
+ (HOSTAPD_CHAN_DISABLED |
+ HOSTAPD_CHAN_RADAR))
+ return NOT_ALLOWED;
+ if (mode->channels[i].flag & HOSTAPD_CHAN_NO_IR)
+ return NO_IR;
+ return ALLOWED;
+ }
+ }
+
+ return NOT_ALLOWED;
+}
+
+
+struct p2p_oper_class_map {
+ enum hostapd_hw_mode mode;
+ u8 op_class;
+ u8 min_chan;
+ u8 max_chan;
+ u8 inc;
+ enum { BW20, BW40PLUS, BW40MINUS, BW80, BW2160 } bw;
+};
+
+static const struct p2p_oper_class_map op_class[] = {
+ { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
+#if 0 /* Do not enable HT40 on 2 GHz for now */
+ { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
+ { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
+#endif
+ { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
+ { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
+ { HOSTAPD_MODE_IEEE80211A, 125, 149, 169, 4, BW20 },
+ { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
+ { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
+ { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
+ { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
+
+ /*
+ * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
+ * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
+ * 80 MHz, but currently use the following definition for simplicity
+ * (these center frequencies are not actual channels, which makes
+ * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
+ * removing invalid channels.
+ */
+ { HOSTAPD_MODE_IEEE80211A, 128, 36, 161, 4, BW80 },
+ { HOSTAPD_MODE_IEEE80211AD, 180, 1, 4, 1, BW2160 },
+ { -1, 0, 0, 0, 0, BW20 }
+};
+
+
+static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
+ struct hostapd_hw_modes *mode,
+ u8 channel)
+{
+ u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
+ unsigned int i;
+
+ if (mode->mode != HOSTAPD_MODE_IEEE80211A)
+ return 0;
+
+ for (i = 0; i < ARRAY_SIZE(center_channels); i++)
+ /*
+ * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
+ * so the center channel is 6 channels away from the start/end.
+ */
+ if (channel >= center_channels[i] - 6 &&
+ channel <= center_channels[i] + 6)
+ return center_channels[i];
+
+ return 0;
+}
+
+
+static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
+ struct hostapd_hw_modes *mode,
+ u8 channel, u8 bw)
+{
+ u8 center_chan;
+ int i, flags;
+ enum chan_allowed res, ret = ALLOWED;
+
+ center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
+ if (!center_chan)
+ return NOT_ALLOWED;
+ if (center_chan >= 58 && center_chan <= 138)
+ return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
+
+ /* check all the channels are available */
+ for (i = 0; i < 4; i++) {
+ int adj_chan = center_chan - 6 + i * 4;
+
+ res = has_channel(wpa_s->global, mode, adj_chan, &flags);
+ if (res == NOT_ALLOWED)
+ return NOT_ALLOWED;
+ if (res == NO_IR)
+ ret = NO_IR;
+
+ if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
+ return NOT_ALLOWED;
+ if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
+ return NOT_ALLOWED;
+ if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
+ return NOT_ALLOWED;
+ if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
+ return NOT_ALLOWED;
+ }
+
+ return ret;
+}
+
+
+static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
+ struct hostapd_hw_modes *mode,
+ u8 channel, u8 bw)
+{
+ int flag = 0;
+ enum chan_allowed res, res2;
+
+ res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
+ if (bw == BW40MINUS) {
+ if (!(flag & HOSTAPD_CHAN_HT40MINUS))
+ return NOT_ALLOWED;
+ res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
+ } else if (bw == BW40PLUS) {
+ if (!(flag & HOSTAPD_CHAN_HT40PLUS))
+ return NOT_ALLOWED;
+ res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
+ } else if (bw == BW80) {
+ res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
+ }
+
+ if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
+ return NOT_ALLOWED;
+ if (res == NO_IR || res2 == NO_IR)
+ return NO_IR;
+ return res;
+}
+
+
+static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
+ struct p2p_channels *chan,
+ struct p2p_channels *cli_chan)
+{
+ struct hostapd_hw_modes *mode;
+ int cla, op, cli_cla;
+
+ if (wpa_s->hw.modes == NULL) {
+ wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
+ "of all supported channels; assume dualband "
+ "support");
+ return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
+ }
+
+ cla = cli_cla = 0;
+
+ for (op = 0; op_class[op].op_class; op++) {
+ const struct p2p_oper_class_map *o = &op_class[op];
+ u8 ch;
+ struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
+
+ mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
+ if (mode == NULL)
+ continue;
+ if (mode->mode == HOSTAPD_MODE_IEEE80211G)
+ wpa_s->global->p2p_24ghz_social_channels = 1;
+ for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
+ enum chan_allowed res;
+ res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
+ if (res == ALLOWED) {
+ if (reg == NULL) {
+ wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
+ o->op_class);
+ reg = &chan->reg_class[cla];
+ cla++;
+ reg->reg_class = o->op_class;
+ }
+ reg->channel[reg->channels] = ch;
+ reg->channels++;
+ } else if (res == NO_IR &&
+ wpa_s->conf->p2p_add_cli_chan) {
+ if (cli_reg == NULL) {
+ wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
+ o->op_class);
+ cli_reg = &cli_chan->reg_class[cli_cla];
+ cli_cla++;
+ cli_reg->reg_class = o->op_class;
+ }
+ cli_reg->channel[cli_reg->channels] = ch;
+ cli_reg->channels++;
+ }
+ }
+ if (reg) {
+ wpa_hexdump(MSG_DEBUG, "P2P: Channels",
+ reg->channel, reg->channels);
+ }
+ if (cli_reg) {
+ wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
+ cli_reg->channel, cli_reg->channels);
+ }
+ }
+
+ chan->reg_classes = cla;
+ cli_chan->reg_classes = cli_cla;
+
+ return 0;
+}
+
+
+int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
+ struct hostapd_hw_modes *mode, u8 channel)
+{
+ int op;
+ enum chan_allowed ret;
+
+ for (op = 0; op_class[op].op_class; op++) {
+ const struct p2p_oper_class_map *o = &op_class[op];
+ u8 ch;
+
+ for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
+ if (o->mode != HOSTAPD_MODE_IEEE80211A ||
+ (o->bw != BW40PLUS && o->bw != BW40MINUS) ||
+ ch != channel)
+ continue;
+ ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
+ if (ret == ALLOWED)
+ return (o->bw == BW40MINUS) ? -1 : 1;
+ }
+ }
+ return 0;
+}
+
+
+int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
+ struct hostapd_hw_modes *mode, u8 channel)
+{
+ if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
+ return 0;
+
+ return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
+}
+
+
+static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
+ size_t buf_len)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+
+ for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
+ if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
+ break;
+ }
+ if (wpa_s == NULL)
+ return -1;
+
+ return wpa_drv_get_noa(wpa_s, buf, buf_len);
+}
+
+
+struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
+ const u8 *ssid, size_t ssid_len)
+{
+ for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
+ struct wpa_ssid *s = wpa_s->current_ssid;
+ if (s == NULL)
+ continue;
+ if (s->mode != WPAS_MODE_P2P_GO &&
+ s->mode != WPAS_MODE_AP &&
+ s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
+ continue;
+ if (s->ssid_len != ssid_len ||
+ os_memcmp(ssid, s->ssid, ssid_len) != 0)
+ continue;
+ return wpa_s;
+ }
+
+ return NULL;
+
+}
+
+
+struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
+ const u8 *peer_dev_addr)
+{
+ for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
+ struct wpa_ssid *ssid = wpa_s->current_ssid;
+ if (ssid && (ssid->mode != WPAS_MODE_INFRA || !ssid->p2p_group))
+ continue;
+ if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
+ return wpa_s;
+ }
+
+ return NULL;
+}
+
+
+static int wpas_go_connected(void *ctx, const u8 *dev_addr)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+
+ return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
+}
+
+
+static int wpas_is_concurrent_session_active(void *ctx)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ struct wpa_supplicant *ifs;
+
+ for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
+ if (ifs == wpa_s)
+ continue;
+ if (ifs->wpa_state > WPA_ASSOCIATED)
+ return 1;
+ }
+ return 0;
+}
+
+
+static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ wpa_msg_global(wpa_s, level, "P2P: %s", msg);
+}
+
+
+int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
+ const char *conf_p2p_dev)
+{
+ struct wpa_interface iface;
+ struct wpa_supplicant *p2pdev_wpa_s;
+ char ifname[100];
+ char force_name[100];
+ int ret;
+
+ ret = os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
+ wpa_s->ifname);
+ if (os_snprintf_error(sizeof(ifname), ret))
+ return -1;
+ force_name[0] = '\0';
+ wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
+ ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
+ force_name, wpa_s->pending_interface_addr, NULL);
+ if (ret < 0) {
+ wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
+ return ret;
+ }
+ os_strlcpy(wpa_s->pending_interface_name, ifname,
+ sizeof(wpa_s->pending_interface_name));
+
+ os_memset(&iface, 0, sizeof(iface));
+ iface.p2p_mgmt = 1;
+ iface.ifname = wpa_s->pending_interface_name;
+ iface.driver = wpa_s->driver->name;
+ iface.driver_param = wpa_s->conf->driver_param;
+
+ /*
+ * If a P2P Device configuration file was given, use it as the interface
+ * configuration file (instead of using parent's configuration file.
+ */
+ if (conf_p2p_dev) {
+ iface.confname = conf_p2p_dev;
+ iface.ctrl_interface = NULL;
+ } else {
+ iface.confname = wpa_s->confname;
+ iface.ctrl_interface = wpa_s->conf->ctrl_interface;
+ }
+
+ p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
+ if (!p2pdev_wpa_s) {
+ wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
+ return -1;
+ }
+
+ wpa_s->pending_interface_name[0] = '\0';
+ return 0;
+}
+
+
+static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
+ const u8 *noa, size_t noa_len)
+{
+ struct wpa_supplicant *wpa_s, *intf = ctx;
+ char hex[100];
+
+ for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
+ if (wpa_s->waiting_presence_resp)
+ break;
+ }
+ if (!wpa_s) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
+ return;
+ }
+ wpa_s->waiting_presence_resp = 0;
+
+ wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
+ wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
+ " status=%u noa=%s", MAC2STR(src), status, hex);
+}
+
+
+static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid,
+ size_t ssid_len, u8 *go_dev_addr,
+ u8 *ret_ssid, size_t *ret_ssid_len,
+ u8 *intended_iface_addr)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ struct wpa_ssid *s;
+
+ s = wpas_p2p_get_persistent(wpa_s, addr, ssid, ssid_len);
+ if (s) {
+ os_memcpy(ret_ssid, s->ssid, s->ssid_len);
+ *ret_ssid_len = s->ssid_len;
+ os_memcpy(go_dev_addr, s->bssid, ETH_ALEN);
+
+ if (s->mode != WPAS_MODE_P2P_GO) {
+ os_memset(intended_iface_addr, 0, ETH_ALEN);
+ } else if (wpas_p2p_create_iface(wpa_s)) {
+ if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO))
+ return 0;
+
+ os_memcpy(intended_iface_addr,
+ wpa_s->pending_interface_addr, ETH_ALEN);
+ } else {
+ os_memcpy(intended_iface_addr, wpa_s->own_addr,
+ ETH_ALEN);
+ }
+ return 1;
+ }
+
+ return 0;
+}
+
+
+static int wpas_get_go_info(void *ctx, u8 *intended_addr,
+ u8 *ssid, size_t *ssid_len, int *group_iface)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ struct wpa_ssid *s;
+ u8 bssid[ETH_ALEN];
+
+ /*
+ * group_iface will be set to 1 only if a dedicated interface for P2P
+ * role is required. First, we try to reuse an active GO. However,
+ * if it is not present, we will try to reactivate an existing
+ * persistent group and set group_iface to 1, so the caller will know
+ * that the pending interface should be used.
+ */
+ *group_iface = 0;
+ s = wpas_p2p_group_go_ssid(wpa_s, bssid);
+ if (!s) {
+ s = wpas_p2p_get_persistent_go(wpa_s);
+ *group_iface = wpas_p2p_create_iface(wpa_s);
+ if (s)
+ os_memcpy(bssid, s->bssid, ETH_ALEN);
+ else
+ return 0;
+ }
+
+ os_memcpy(intended_addr, bssid, ETH_ALEN);
+ os_memcpy(ssid, s->ssid, s->ssid_len);
+ *ssid_len = s->ssid_len;
+
+ return 1;
+}
+
+
+static int wpas_remove_stale_groups(void *ctx, const u8 *peer, const u8 *go,
+ const u8 *ssid, size_t ssid_len)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ struct wpa_ssid *s;
+ int save_config = 0;
+ size_t i;
+
+ /* Start with our first choice of Persistent Groups */
+ while ((s = wpas_p2p_get_persistent(wpa_s, peer, NULL, 0))) {
+ if (go && ssid && ssid_len &&
+ s->ssid_len == ssid_len &&
+ os_memcmp(go, s->bssid, ETH_ALEN) == 0 &&
+ os_memcmp(ssid, s->ssid, ssid_len) == 0)
+ break;
+
+ /* Remove stale persistent group */
+ if (s->mode != WPAS_MODE_P2P_GO || s->num_p2p_clients <= 1) {
+ wpa_config_remove_network(wpa_s->conf, s->id);
+ save_config = 1;
+ continue;
+ }
+
+ for (i = 0; i < s->num_p2p_clients; i++) {
+ if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
+ peer, ETH_ALEN) != 0)
+ continue;
+
+ os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
+ s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
+ (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
+ break;
+ }
+ s->num_p2p_clients--;
+ save_config = 1;
+ }
+
+ if (save_config)
+ p2p_config_write(wpa_s);
+
+ /* Return TRUE if valid SSID remains */
+ return s != NULL;
+}
+
+
+static void wpas_p2ps_get_feat_cap_str(char *buf, size_t buf_len,
+ const u8 *feat_cap, size_t feat_cap_len)
+{
+ static const char pref[] = " feature_cap=";
+ int ret;
+
+ buf[0] = '\0';
+
+ /*
+ * We expect a feature capability to contain at least one byte to be
+ * reported. The string buffer provided by the caller function is
+ * expected to be big enough to contain all bytes of the attribute for
+ * known specifications. This function truncates the reported bytes if
+ * the feature capability data exceeds the string buffer size.
+ */
+ if (!feat_cap || !feat_cap_len || buf_len < sizeof(pref) + 2)
+ return;
+
+ os_memcpy(buf, pref, sizeof(pref));
+ ret = wpa_snprintf_hex(&buf[sizeof(pref) - 1],
+ buf_len - sizeof(pref) + 1,
+ feat_cap, feat_cap_len);
+
+ if (ret != (2 * (int) feat_cap_len))
+ wpa_printf(MSG_WARNING, "P2PS feature_cap bytes truncated");
+}
+
+
+static void wpas_p2ps_prov_complete(void *ctx, u8 status, const u8 *dev,
+ const u8 *adv_mac, const u8 *ses_mac,
+ const u8 *grp_mac, u32 adv_id, u32 ses_id,
+ u8 conncap, int passwd_id,
+ const u8 *persist_ssid,
+ size_t persist_ssid_size, int response_done,
+ int prov_start, const char *session_info,
+ const u8 *feat_cap, size_t feat_cap_len)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ u8 mac[ETH_ALEN];
+ struct wpa_ssid *persistent_go, *stale, *s;
+ int save_config = 0;
+ struct wpa_supplicant *go_wpa_s;
+ char feat_cap_str[256];
+
+ if (!dev)
+ return;
+
+ os_memset(mac, 0, ETH_ALEN);
+ if (!adv_mac)
+ adv_mac = mac;
+ if (!ses_mac)
+ ses_mac = mac;
+ if (!grp_mac)
+ grp_mac = mac;
+
+ wpas_p2ps_get_feat_cap_str(feat_cap_str, sizeof(feat_cap_str),
+ feat_cap, feat_cap_len);
+
+ if (prov_start) {
+ if (session_info == NULL) {
+ wpa_msg_global(wpa_s, MSG_INFO,
+ P2P_EVENT_P2PS_PROVISION_START MACSTR
+ " adv_id=%x conncap=%x"
+ " adv_mac=" MACSTR
+ " session=%x mac=" MACSTR
+ " dev_passwd_id=%d%s",
+ MAC2STR(dev), adv_id, conncap,
+ MAC2STR(adv_mac),
+ ses_id, MAC2STR(ses_mac),
+ passwd_id, feat_cap_str);
+ } else {
+ wpa_msg_global(wpa_s, MSG_INFO,
+ P2P_EVENT_P2PS_PROVISION_START MACSTR
+ " adv_id=%x conncap=%x"
+ " adv_mac=" MACSTR
+ " session=%x mac=" MACSTR
+ " dev_passwd_id=%d info='%s'%s",
+ MAC2STR(dev), adv_id, conncap,
+ MAC2STR(adv_mac),
+ ses_id, MAC2STR(ses_mac),
+ passwd_id, session_info, feat_cap_str);
+ }
+ return;
+ }
+
+ go_wpa_s = wpas_p2p_get_go_group(wpa_s);
+ persistent_go = wpas_p2p_get_persistent_go(wpa_s);
+
+ if (status && status != P2P_SC_SUCCESS_DEFERRED) {
+ if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
+ wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
+
+ if (persistent_go && !persistent_go->num_p2p_clients) {
+ /* remove empty persistent GO */
+ wpa_config_remove_network(wpa_s->conf,
+ persistent_go->id);
+ }
+
+ wpa_msg_global(wpa_s, MSG_INFO,
+ P2P_EVENT_P2PS_PROVISION_DONE MACSTR
+ " status=%d"
+ " adv_id=%x adv_mac=" MACSTR
+ " session=%x mac=" MACSTR "%s",
+ MAC2STR(dev), status,
+ adv_id, MAC2STR(adv_mac),
+ ses_id, MAC2STR(ses_mac), feat_cap_str);
+ return;
+ }
+
+ /* Clean up stale persistent groups with this device */
+ s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
+ persist_ssid_size);
+
+ if (persist_ssid && s && s->mode != WPAS_MODE_P2P_GO &&
+ is_zero_ether_addr(grp_mac)) {
+ wpa_dbg(wpa_s, MSG_ERROR,
+ "P2P: Peer device is a GO in a persistent group, but it did not provide the intended MAC address");
+ return;
+ }
+
+ for (;;) {
+ stale = wpas_p2p_get_persistent(wpa_s, dev, NULL, 0);
+ if (!stale)
+ break;
+
+ if (s && s->ssid_len == stale->ssid_len &&
+ os_memcmp(stale->bssid, s->bssid, ETH_ALEN) == 0 &&
+ os_memcmp(stale->ssid, s->ssid, s->ssid_len) == 0)
+ break;
+
+ /* Remove stale persistent group */
+ if (stale->mode != WPAS_MODE_P2P_GO ||
+ stale->num_p2p_clients <= 1) {
+ wpa_config_remove_network(wpa_s->conf, stale->id);
+ } else {
+ size_t i;
+
+ for (i = 0; i < stale->num_p2p_clients; i++) {
+ if (os_memcmp(stale->p2p_client_list +
+ i * ETH_ALEN,
+ dev, ETH_ALEN) == 0) {
+ os_memmove(stale->p2p_client_list +
+ i * ETH_ALEN,
+ stale->p2p_client_list +
+ (i + 1) * ETH_ALEN,
+ (stale->num_p2p_clients -
+ i - 1) * ETH_ALEN);
+ break;
+ }
+ }
+ stale->num_p2p_clients--;
+ }
+ save_config = 1;
+ }
+
+ if (save_config)
+ p2p_config_write(wpa_s);
+
+ if (s) {
+ if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
+ wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
+
+ if (persistent_go && s != persistent_go &&
+ !persistent_go->num_p2p_clients) {
+ /* remove empty persistent GO */
+ wpa_config_remove_network(wpa_s->conf,
+ persistent_go->id);
+ /* Save config */
+ }
+
+ wpa_msg_global(wpa_s, MSG_INFO,
+ P2P_EVENT_P2PS_PROVISION_DONE MACSTR
+ " status=%d"
+ " adv_id=%x adv_mac=" MACSTR
+ " session=%x mac=" MACSTR
+ " persist=%d%s",
+ MAC2STR(dev), status,
+ adv_id, MAC2STR(adv_mac),
+ ses_id, MAC2STR(ses_mac), s->id, feat_cap_str);
+ return;
+ }
+
+ if (conncap == P2PS_SETUP_GROUP_OWNER) {
+ /*
+ * We need to copy the interface name. Simply saving a
+ * pointer isn't enough, since if we use pending_interface_name
+ * it will be overwritten when the group is added.
+ */
+ char go_ifname[100];
+
+ go_ifname[0] = '\0';
+ if (!go_wpa_s) {
+ wpa_s->global->pending_p2ps_group = 1;
+
+ if (!wpas_p2p_create_iface(wpa_s))
+ os_memcpy(go_ifname, wpa_s->ifname,
+ sizeof(go_ifname));
+ else if (wpa_s->pending_interface_name[0])
+ os_memcpy(go_ifname,
+ wpa_s->pending_interface_name,
+ sizeof(go_ifname));
+
+ if (!go_ifname[0]) {
+ wpas_p2ps_prov_complete(
+ wpa_s, P2P_SC_FAIL_UNKNOWN_GROUP,
+ dev, adv_mac, ses_mac,
+ grp_mac, adv_id, ses_id, 0, 0,
+ NULL, 0, 0, 0, NULL, NULL, 0);
+ return;
+ }
+
+ /* If PD Resp complete, start up the GO */
+ if (response_done && persistent_go) {
+ wpas_p2p_group_add_persistent(
+ wpa_s, persistent_go,
+ 0, 0, 0, 0, 0, NULL,
+ persistent_go->mode ==
+ WPAS_MODE_P2P_GO ?
+ P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
+ 0, 0);
+ } else if (response_done) {
+ wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
+ }
+
+ if (passwd_id == DEV_PW_P2PS_DEFAULT) {
+ os_memcpy(wpa_s->p2ps_join_addr, grp_mac,
+ ETH_ALEN);
+ wpa_s->p2ps_method_config_any = 1;
+ }
+ } else if (passwd_id == DEV_PW_P2PS_DEFAULT) {
+ os_memcpy(go_ifname, go_wpa_s->ifname,
+ sizeof(go_ifname));
+
+ if (is_zero_ether_addr(grp_mac)) {
+ wpa_dbg(go_wpa_s, MSG_DEBUG,
+ "P2P: Setting PIN-1 for ANY");
+ wpa_supplicant_ap_wps_pin(go_wpa_s, NULL,
+ "12345670", NULL, 0,
+ 0);
+ } else {
+ wpa_dbg(go_wpa_s, MSG_DEBUG,
+ "P2P: Setting PIN-1 for " MACSTR,
+ MAC2STR(grp_mac));
+ wpa_supplicant_ap_wps_pin(go_wpa_s, grp_mac,
+ "12345670", NULL, 0,
+ 0);
+ }
+
+ os_memcpy(wpa_s->p2ps_join_addr, grp_mac, ETH_ALEN);
+ wpa_s->p2ps_method_config_any = 1;
+ }
+
+ wpa_msg_global(wpa_s, MSG_INFO,
+ P2P_EVENT_P2PS_PROVISION_DONE MACSTR
+ " status=%d conncap=%x"
+ " adv_id=%x adv_mac=" MACSTR
+ " session=%x mac=" MACSTR
+ " dev_passwd_id=%d go=%s%s",
+ MAC2STR(dev), status, conncap,
+ adv_id, MAC2STR(adv_mac),
+ ses_id, MAC2STR(ses_mac),
+ passwd_id, go_ifname, feat_cap_str);
+ return;
+ }
+
+ if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
+ wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
+
+ if (persistent_go && !persistent_go->num_p2p_clients) {
+ /* remove empty persistent GO */
+ wpa_config_remove_network(wpa_s->conf, persistent_go->id);
+ }
+
+ if (conncap == P2PS_SETUP_CLIENT) {
+ wpa_msg_global(wpa_s, MSG_INFO,
+ P2P_EVENT_P2PS_PROVISION_DONE MACSTR
+ " status=%d conncap=%x"
+ " adv_id=%x adv_mac=" MACSTR
+ " session=%x mac=" MACSTR
+ " dev_passwd_id=%d join=" MACSTR "%s",
+ MAC2STR(dev), status, conncap,
+ adv_id, MAC2STR(adv_mac),
+ ses_id, MAC2STR(ses_mac),
+ passwd_id, MAC2STR(grp_mac), feat_cap_str);
+ } else {
+ wpa_msg_global(wpa_s, MSG_INFO,
+ P2P_EVENT_P2PS_PROVISION_DONE MACSTR
+ " status=%d conncap=%x"
+ " adv_id=%x adv_mac=" MACSTR
+ " session=%x mac=" MACSTR
+ " dev_passwd_id=%d%s",
+ MAC2STR(dev), status, conncap,
+ adv_id, MAC2STR(adv_mac),
+ ses_id, MAC2STR(ses_mac),
+ passwd_id, feat_cap_str);
+ }
+}
+
+
+static int _wpas_p2p_in_progress(void *ctx)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ return wpas_p2p_in_progress(wpa_s);
+}
+
+
+static int wpas_prov_disc_resp_cb(void *ctx)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ struct wpa_ssid *persistent_go;
+
+ if (!wpa_s->global->pending_p2ps_group)
+ return 0;
+
+ wpa_s->global->pending_p2ps_group = 0;
+
+ if (wpas_p2p_get_go_group(wpa_s))
+ return 0;
+ persistent_go = wpas_p2p_get_persistent_go(wpa_s);
+
+ if (persistent_go) {
+ wpas_p2p_group_add_persistent(
+ wpa_s, persistent_go, 0, 0, 0, 0, 0, NULL,
+ persistent_go->mode == WPAS_MODE_P2P_GO ?
+ P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0, 0);
+ } else {
+ wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
+ }
+
+ return 1;
+}
+
+
+static int wpas_p2p_get_pref_freq_list(void *ctx, int go,
+ unsigned int *len,
+ unsigned int *freq_list)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+
+ return wpa_drv_get_pref_freq_list(wpa_s, go ? WPA_IF_P2P_GO :
+ WPA_IF_P2P_CLIENT, len, freq_list);
+}
+
+
+/**
+ * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
+ * @global: Pointer to global data from wpa_supplicant_init()
+ * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
+ * Returns: 0 on success, -1 on failure
+ */
+int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
+{
+ struct p2p_config p2p;
+ int i;
+
+ if (wpa_s->conf->p2p_disabled)
+ return 0;
+
+ if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
+ return 0;
+
+ if (global->p2p)
+ return 0;
+
+ os_memset(&p2p, 0, sizeof(p2p));
+ p2p.cb_ctx = wpa_s;
+ p2p.debug_print = wpas_p2p_debug_print;
+ p2p.p2p_scan = wpas_p2p_scan;
+ p2p.send_action = wpas_send_action;
+ p2p.send_action_done = wpas_send_action_done;
+ p2p.go_neg_completed = wpas_go_neg_completed;
+ p2p.go_neg_req_rx = wpas_go_neg_req_rx;
+ p2p.dev_found = wpas_dev_found;
+ p2p.dev_lost = wpas_dev_lost;
+ p2p.find_stopped = wpas_find_stopped;
+ p2p.start_listen = wpas_start_listen;
+ p2p.stop_listen = wpas_stop_listen;
+ p2p.send_probe_resp = wpas_send_probe_resp;
+ p2p.sd_request = wpas_sd_request;
+ p2p.sd_response = wpas_sd_response;
+ p2p.prov_disc_req = wpas_prov_disc_req;
+ p2p.prov_disc_resp = wpas_prov_disc_resp;
+ p2p.prov_disc_fail = wpas_prov_disc_fail;
+ p2p.invitation_process = wpas_invitation_process;
+ p2p.invitation_received = wpas_invitation_received;
+ p2p.invitation_result = wpas_invitation_result;
+ p2p.get_noa = wpas_get_noa;
+ p2p.go_connected = wpas_go_connected;
+ p2p.presence_resp = wpas_presence_resp;
+ p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
+ p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
+ p2p.get_persistent_group = wpas_get_persistent_group;
+ p2p.get_go_info = wpas_get_go_info;
+ p2p.remove_stale_groups = wpas_remove_stale_groups;
+ p2p.p2ps_prov_complete = wpas_p2ps_prov_complete;
+ p2p.prov_disc_resp_cb = wpas_prov_disc_resp_cb;
+ p2p.p2ps_group_capability = p2ps_group_capability;
+ p2p.get_pref_freq_list = wpas_p2p_get_pref_freq_list;
+
+ os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
+ os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
+ p2p.dev_name = wpa_s->conf->device_name;
+ p2p.manufacturer = wpa_s->conf->manufacturer;
+ p2p.model_name = wpa_s->conf->model_name;
+ p2p.model_number = wpa_s->conf->model_number;
+ p2p.serial_number = wpa_s->conf->serial_number;
+ if (wpa_s->wps) {
+ os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
+ p2p.config_methods = wpa_s->wps->config_methods;
+ }
+
+ if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
+ wpa_printf(MSG_ERROR,
+ "P2P: Failed to configure supported channel list");
+ return -1;
+ }
+
+ if (wpa_s->conf->p2p_listen_reg_class &&
+ wpa_s->conf->p2p_listen_channel) {
+ p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
+ p2p.channel = wpa_s->conf->p2p_listen_channel;
+ p2p.channel_forced = 1;
+ } else {
+ /*
+ * Pick one of the social channels randomly as the listen
+ * channel.
+ */
+ if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
+ &p2p.channel) != 0) {
+ wpa_printf(MSG_INFO,
+ "P2P: No social channels supported by the driver - do not enable P2P");
+ return 0;
+ }
+ p2p.channel_forced = 0;
+ }
+ wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
+ p2p.reg_class, p2p.channel);
+
+ if (wpa_s->conf->p2p_oper_reg_class &&
+ wpa_s->conf->p2p_oper_channel) {
+ p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
+ p2p.op_channel = wpa_s->conf->p2p_oper_channel;
+ p2p.cfg_op_channel = 1;
+ wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
+ "%d:%d", p2p.op_reg_class, p2p.op_channel);
+
+ } else {
+ /*
+ * Use random operation channel from 2.4 GHz band social
+ * channels (1, 6, 11) or band 60 GHz social channel (2) if no
+ * other preference is indicated.
+ */
+ if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
+ &p2p.op_channel) != 0) {
+ wpa_printf(MSG_ERROR,
+ "P2P: Failed to select random social channel as operation channel");
+ return -1;
+ }
+ p2p.cfg_op_channel = 0;
+ wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
+ "%d:%d", p2p.op_reg_class, p2p.op_channel);
+ }
+
+ if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
+ p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
+ p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
+ }
+
+ if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
+ os_memcpy(p2p.country, wpa_s->conf->country, 2);
+ p2p.country[2] = 0x04;
+ } else
+ os_memcpy(p2p.country, "XX\x04", 3);
+
+ os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
+ WPS_DEV_TYPE_LEN);
+
+ p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
+ os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
+ p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
+
+ p2p.concurrent_operations = !!(wpa_s->drv_flags &
+ WPA_DRIVER_FLAGS_P2P_CONCURRENT);
+
+ p2p.max_peers = 100;
+
+ if (wpa_s->conf->p2p_ssid_postfix) {
+ p2p.ssid_postfix_len =
+ os_strlen(wpa_s->conf->p2p_ssid_postfix);
+ if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
+ p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
+ os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
+ p2p.ssid_postfix_len);
+ }
+
+ p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
+
+ p2p.max_listen = wpa_s->max_remain_on_chan;
+
+ if (wpa_s->conf->p2p_passphrase_len >= 8 &&
+ wpa_s->conf->p2p_passphrase_len <= 63)
+ p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
+ else
+ p2p.passphrase_len = 8;
+
+ global->p2p = p2p_init(&p2p);
+ if (global->p2p == NULL)
+ return -1;
+ global->p2p_init_wpa_s = wpa_s;
+
+ for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
+ if (wpa_s->conf->wps_vendor_ext[i] == NULL)
+ continue;
+ p2p_add_wps_vendor_extension(
+ global->p2p, wpa_s->conf->wps_vendor_ext[i]);
+ }
+
+ p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
+
+ return 0;
+}
+
+
+/**
+ * wpas_p2p_deinit - Deinitialize per-interface P2P data
+ * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
+ *
+ * This function deinitialize per-interface P2P data.
+ */
+void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
+{
+ if (wpa_s->driver && wpa_s->drv_priv)
+ wpa_drv_probe_req_report(wpa_s, 0);
+
+ if (wpa_s->go_params) {
+ /* Clear any stored provisioning info */
+ p2p_clear_provisioning_info(
+ wpa_s->global->p2p,
+ wpa_s->go_params->peer_device_addr);
+ }
+
+ os_free(wpa_s->go_params);
+ wpa_s->go_params = NULL;
+ eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
+ eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
+ eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
+ wpa_s->p2p_long_listen = 0;
+ eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
+ eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
+ wpas_p2p_remove_pending_group_interface(wpa_s);
+ eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
+ wpas_p2p_listen_work_done(wpa_s);
+ if (wpa_s->p2p_send_action_work) {
+ os_free(wpa_s->p2p_send_action_work->ctx);
+ radio_work_done(wpa_s->p2p_send_action_work);
+ wpa_s->p2p_send_action_work = NULL;
+ }
+ eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
+
+ wpabuf_free(wpa_s->p2p_oob_dev_pw);
+ wpa_s->p2p_oob_dev_pw = NULL;
+
+ os_free(wpa_s->p2p_group_common_freqs);
+ wpa_s->p2p_group_common_freqs = NULL;
+ wpa_s->p2p_group_common_freqs_num = 0;
+
+ /* TODO: remove group interface from the driver if this wpa_s instance
+ * is on top of a P2P group interface */
+}
+
+
+/**
+ * wpas_p2p_deinit_global - Deinitialize global P2P module
+ * @global: Pointer to global data from wpa_supplicant_init()
+ *
+ * This function deinitializes the global (per device) P2P module.
+ */
+static void wpas_p2p_deinit_global(struct wpa_global *global)
+{
+ struct wpa_supplicant *wpa_s, *tmp;
+
+ wpa_s = global->ifaces;
+
+ wpas_p2p_service_flush(global->p2p_init_wpa_s);
+
+ /* Remove remaining P2P group interfaces */
+ while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
+ wpa_s = wpa_s->next;
+ while (wpa_s) {
+ tmp = global->ifaces;
+ while (tmp &&
+ (tmp == wpa_s ||
+ tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
+ tmp = tmp->next;
+ }
+ if (tmp == NULL)
+ break;
+ /* Disconnect from the P2P group and deinit the interface */
+ wpas_p2p_disconnect(tmp);
+ }
+
+ /*
+ * Deinit GO data on any possibly remaining interface (if main
+ * interface is used as GO).
+ */
+ for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
+ if (wpa_s->ap_iface)
+ wpas_p2p_group_deinit(wpa_s);
+ }
+
+ p2p_deinit(global->p2p);
+ global->p2p = NULL;
+ global->p2p_init_wpa_s = NULL;
+}
+
+
+static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
+{
+ if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
+ wpa_s->conf->p2p_no_group_iface)
+ return 0; /* separate interface disabled per configuration */
+ if (wpa_s->drv_flags &
+ (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
+ WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
+ return 1; /* P2P group requires a new interface in every case
+ */
+ if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
+ return 0; /* driver does not support concurrent operations */
+ if (wpa_s->global->ifaces->next)
+ return 1; /* more that one interface already in use */
+ if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
+ return 1; /* this interface is already in use */
+ return 0;
+}
+
+
+static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
+ const u8 *peer_addr,
+ enum p2p_wps_method wps_method,
+ int go_intent, const u8 *own_interface_addr,
+ unsigned int force_freq, int persistent_group,
+ struct wpa_ssid *ssid, unsigned int pref_freq)
+{
+ if (persistent_group && wpa_s->conf->persistent_reconnect)
+ persistent_group = 2;
+
+ /*
+ * Increase GO config timeout if HT40 is used since it takes some time
+ * to scan channels for coex purposes before the BSS can be started.
+ */
+ p2p_set_config_timeout(wpa_s->global->p2p,
+ wpa_s->p2p_go_ht40 ? 255 : 100, 20);
+
+ return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
+ go_intent, own_interface_addr, force_freq,
+ persistent_group, ssid ? ssid->ssid : NULL,
+ ssid ? ssid->ssid_len : 0,
+ wpa_s->p2p_pd_before_go_neg, pref_freq,
+ wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
+ 0);
+}
+
+
+static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
+ const u8 *peer_addr,
+ enum p2p_wps_method wps_method,
+ int go_intent, const u8 *own_interface_addr,
+ unsigned int force_freq, int persistent_group,
+ struct wpa_ssid *ssid, unsigned int pref_freq)
+{
+ if (persistent_group && wpa_s->conf->persistent_reconnect)
+ persistent_group = 2;
+
+ return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
+ go_intent, own_interface_addr, force_freq,
+ persistent_group, ssid ? ssid->ssid : NULL,
+ ssid ? ssid->ssid_len : 0, pref_freq,
+ wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
+ 0);
+}
+
+
+static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
+{
+ wpa_s->p2p_join_scan_count++;
+ wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
+ wpa_s->p2p_join_scan_count);
+ if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
+ wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
+ " for join operationg - stop join attempt",
+ MAC2STR(wpa_s->pending_join_iface_addr));
+ eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
+ if (wpa_s->p2p_auto_pd) {
+ wpa_s->p2p_auto_pd = 0;
+ wpa_msg_global(wpa_s, MSG_INFO,
+ P2P_EVENT_PROV_DISC_FAILURE
+ " p2p_dev_addr=" MACSTR " status=N/A",
+ MAC2STR(wpa_s->pending_join_dev_addr));
+ return;
+ }
+ wpa_msg_global(wpa_s->parent, MSG_INFO,
+ P2P_EVENT_GROUP_FORMATION_FAILURE);
+ wpas_notify_p2p_group_formation_failure(wpa_s, "");
+ }
+}
+
+
+static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
+{
+ int res;
+ unsigned int num, i;
+ struct wpa_used_freq_data *freqs;
+
+ if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
+ /* Multiple channels are supported and not all are in use */
+ return 0;
+ }
+
+ freqs = os_calloc(wpa_s->num_multichan_concurrent,
+ sizeof(struct wpa_used_freq_data));
+ if (!freqs)
+ return 1;
+
+ num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
+ wpa_s->num_multichan_concurrent);
+
+ for (i = 0; i < num; i++) {
+ if (freqs[i].freq == freq) {
+ wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
+ freq);
+ res = 0;
+ goto exit_free;
+ }
+ }
+
+ wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
+ res = 1;
+
+exit_free:
+ os_free(freqs);
+ return res;
+}
+
+
+static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
+ const u8 *peer_dev_addr)
+{
+ struct wpa_bss *bss;
+ int updated;
+
+ bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
+ if (bss == NULL)
+ return -1;
+ if (bss->last_update_idx < wpa_s->bss_update_idx) {
+ wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
+ "last scan");
+ return 0;
+ }
+
+ updated = os_reltime_before(&wpa_s->p2p_auto_started,
+ &bss->last_update);
+ wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
+ "%ld.%06ld (%supdated in last scan)",
+ bss->last_update.sec, bss->last_update.usec,
+ updated ? "": "not ");
+
+ return updated;
+}
+
+
+static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
+ struct wpa_scan_results *scan_res)
+{
+ struct wpa_bss *bss = NULL;
+ int freq;
+ u8 iface_addr[ETH_ALEN];
+
+ eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
+
+ if (wpa_s->global->p2p_disabled)
+ return;
+
+ wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
+ scan_res ? (int) scan_res->num : -1,
+ wpa_s->p2p_auto_join ? "auto_" : "");
+
+ if (scan_res)
+ wpas_p2p_scan_res_handler(wpa_s, scan_res);
+
+ if (wpa_s->p2p_auto_pd) {
+ int join = wpas_p2p_peer_go(wpa_s,
+ wpa_s->pending_join_dev_addr);
+ if (join == 0 &&
+ wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
+ wpa_s->auto_pd_scan_retry++;
+ bss = wpa_bss_get_bssid_latest(
+ wpa_s, wpa_s->pending_join_dev_addr);
+ if (bss) {
+ freq = bss->freq;
+ wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
+ "the peer " MACSTR " at %d MHz",
+ wpa_s->auto_pd_scan_retry,
+ MAC2STR(wpa_s->
+ pending_join_dev_addr),
+ freq);
+ wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
+ return;
+ }
+ }
+
+ if (join < 0)
+ join = 0;
+
+ wpa_s->p2p_auto_pd = 0;
+ wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
+ wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
+ MAC2STR(wpa_s->pending_join_dev_addr), join);
+ if (p2p_prov_disc_req(wpa_s->global->p2p,
+ wpa_s->pending_join_dev_addr, NULL,
+ wpa_s->pending_pd_config_methods, join,
+ 0, wpa_s->user_initiated_pd) < 0) {
+ wpa_s->p2p_auto_pd = 0;
+ wpa_msg_global(wpa_s, MSG_INFO,
+ P2P_EVENT_PROV_DISC_FAILURE
+ " p2p_dev_addr=" MACSTR " status=N/A",
+ MAC2STR(wpa_s->pending_join_dev_addr));
+ }
+ return;
+ }
+
+ if (wpa_s->p2p_auto_join) {
+ int join = wpas_p2p_peer_go(wpa_s,
+ wpa_s->pending_join_dev_addr);
+ if (join < 0) {
+ wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
+ "running a GO -> use GO Negotiation");
+ wpa_msg_global(wpa_s->parent, MSG_INFO,
+ P2P_EVENT_FALLBACK_TO_GO_NEG
+ "reason=peer-not-running-GO");
+ wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
+ wpa_s->p2p_pin, wpa_s->p2p_wps_method,
+ wpa_s->p2p_persistent_group, 0, 0, 0,
+ wpa_s->p2p_go_intent,
+ wpa_s->p2p_connect_freq,
+ wpa_s->p2p_persistent_id,
+ wpa_s->p2p_pd_before_go_neg,
+ wpa_s->p2p_go_ht40,
+ wpa_s->p2p_go_vht);
+ return;
+ }
+
+ wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
+ "try to join the group", join ? "" :
+ " in older scan");
+ if (!join) {
+ wpa_msg_global(wpa_s->parent, MSG_INFO,
+ P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED);
+ wpa_s->p2p_fallback_to_go_neg = 1;
+ }
+ }
+
+ freq = p2p_get_oper_freq(wpa_s->global->p2p,
+ wpa_s->pending_join_iface_addr);
+ if (freq < 0 &&
+ p2p_get_interface_addr(wpa_s->global->p2p,
+ wpa_s->pending_join_dev_addr,
+ iface_addr) == 0 &&
+ os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
+ && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
+ wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
+ "address for join from " MACSTR " to " MACSTR
+ " based on newly discovered P2P peer entry",
+ MAC2STR(wpa_s->pending_join_iface_addr),
+ MAC2STR(iface_addr));
+ os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
+ ETH_ALEN);
+
+ freq = p2p_get_oper_freq(wpa_s->global->p2p,
+ wpa_s->pending_join_iface_addr);
+ }
+ if (freq >= 0) {
+ wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
+ "from P2P peer table: %d MHz", freq);
+ }
+ if (wpa_s->p2p_join_ssid_len) {
+ wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
+ MACSTR " and SSID %s",
+ MAC2STR(wpa_s->pending_join_iface_addr),
+ wpa_ssid_txt(wpa_s->p2p_join_ssid,
+ wpa_s->p2p_join_ssid_len));
+ bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
+ wpa_s->p2p_join_ssid,
+ wpa_s->p2p_join_ssid_len);
+ }
+ if (!bss) {
+ wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
+ MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
+ bss = wpa_bss_get_bssid_latest(wpa_s,
+ wpa_s->pending_join_iface_addr);
+ }
+ if (bss) {
+ u8 dev_addr[ETH_ALEN];
+
+ freq = bss->freq;
+ wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
+ "from BSS table: %d MHz (SSID %s)", freq,
+ wpa_ssid_txt(bss->ssid, bss->ssid_len));
+ if (p2p_parse_dev_addr((const u8 *) (bss + 1), bss->ie_len,
+ dev_addr) == 0 &&
+ os_memcmp(wpa_s->pending_join_dev_addr,
+ wpa_s->pending_join_iface_addr, ETH_ALEN) == 0 &&
+ os_memcmp(dev_addr, wpa_s->pending_join_dev_addr,
+ ETH_ALEN) != 0) {
+ wpa_printf(MSG_DEBUG,
+ "P2P: Update target GO device address based on BSS entry: " MACSTR " (was " MACSTR ")",
+ MAC2STR(dev_addr),
+ MAC2STR(wpa_s->pending_join_dev_addr));
+ os_memcpy(wpa_s->pending_join_dev_addr, dev_addr,
+ ETH_ALEN);
+ }
+ }
+ if (freq > 0) {
+ u16 method;
+
+ if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
+ wpa_msg_global(wpa_s->parent, MSG_INFO,
+ P2P_EVENT_GROUP_FORMATION_FAILURE
+ "reason=FREQ_CONFLICT");
+ wpas_notify_p2p_group_formation_failure(
+ wpa_s, "FREQ_CONFLICT");
+ return;
+ }
+
+ wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
+ "prior to joining an existing group (GO " MACSTR
+ " freq=%u MHz)",
+ MAC2STR(wpa_s->pending_join_dev_addr), freq);
+ wpa_s->pending_pd_before_join = 1;
+
+ switch (wpa_s->pending_join_wps_method) {
+ case WPS_PIN_DISPLAY:
+ method = WPS_CONFIG_KEYPAD;
+ break;
+ case WPS_PIN_KEYPAD:
+ method = WPS_CONFIG_DISPLAY;
+ break;
+ case WPS_PBC:
+ method = WPS_CONFIG_PUSHBUTTON;
+ break;
+ case WPS_P2PS:
+ method = WPS_CONFIG_P2PS;
+ break;
+ default:
+ method = 0;
+ break;
+ }
+
+ if ((p2p_get_provisioning_info(wpa_s->global->p2p,
+ wpa_s->pending_join_dev_addr) ==
+ method)) {
+ /*
+ * We have already performed provision discovery for
+ * joining the group. Proceed directly to join
+ * operation without duplicated provision discovery. */
+ wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
+ "with " MACSTR " already done - proceed to "
+ "join",
+ MAC2STR(wpa_s->pending_join_dev_addr));
+ wpa_s->pending_pd_before_join = 0;
+ goto start;
+ }
+
+ if (p2p_prov_disc_req(wpa_s->global->p2p,
+ wpa_s->pending_join_dev_addr,
+ NULL, method, 1,
+ freq, wpa_s->user_initiated_pd) < 0) {
+ wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
+ "Discovery Request before joining an "
+ "existing group");
+ wpa_s->pending_pd_before_join = 0;
+ goto start;
+ }
+ return;
+ }
+
+ wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
+ eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
+ eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
+ wpas_p2p_check_join_scan_limit(wpa_s);
+ return;
+
+start:
+ /* Start join operation immediately */
+ wpas_p2p_join_start(wpa_s, 0, NULL, 0);
+}
+
+
+static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
+ const u8 *ssid, size_t ssid_len)
+{
+ int ret;
+ struct wpa_driver_scan_params params;
+ struct wpabuf *wps_ie, *ies;
+ size_t ielen;
+ int freqs[2] = { 0, 0 };
+
+ os_memset(¶ms, 0, sizeof(params));
+
+ /* P2P Wildcard SSID */
+ params.num_ssids = 1;
+ if (ssid && ssid_len) {
+ params.ssids[0].ssid = ssid;
+ params.ssids[0].ssid_len = ssid_len;
+ os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
+ wpa_s->p2p_join_ssid_len = ssid_len;
+ } else {
+ params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
+ params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
+ wpa_s->p2p_join_ssid_len = 0;
+ }
+
+ wpa_s->wps->dev.p2p = 1;
+ wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
+ wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
+ NULL);
+ if (wps_ie == NULL) {
+ wpas_p2p_scan_res_join(wpa_s, NULL);
+ return;
+ }
+
+ ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
+ ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
+ if (ies == NULL) {
+ wpabuf_free(wps_ie);
+ wpas_p2p_scan_res_join(wpa_s, NULL);
+ return;
+ }
+ wpabuf_put_buf(ies, wps_ie);
+ wpabuf_free(wps_ie);
+
+ p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
+
+ params.p2p_probe = 1;
+ params.extra_ies = wpabuf_head(ies);
+ params.extra_ies_len = wpabuf_len(ies);
+
+ if (!freq) {
+ int oper_freq;
+ /*
+ * If freq is not provided, check the operating freq of the GO
+ * and use a single channel scan on if possible.
+ */
+ oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
+ wpa_s->pending_join_iface_addr);
+ if (oper_freq > 0)
+ freq = oper_freq;
+ }
+ if (freq > 0) {
+ freqs[0] = freq;
+ params.freqs = freqs;
+ }
+
+ /*
+ * Run a scan to update BSS table and start Provision Discovery once
+ * the new scan results become available.
+ */
+ ret = wpa_drv_scan(wpa_s, ¶ms);
+ if (!ret) {
+ os_get_reltime(&wpa_s->scan_trigger_time);
+ wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
+ wpa_s->own_scan_requested = 1;
+ }
+
+ wpabuf_free(ies);
+
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
+ "try again later");
+ eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
+ eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
+ wpas_p2p_check_join_scan_limit(wpa_s);
+ }
+}
+
+
+static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
+{
+ struct wpa_supplicant *wpa_s = eloop_ctx;
+ wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
+}
+
+
+static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
+ const u8 *dev_addr, enum p2p_wps_method wps_method,
+ int auto_join, int op_freq,
+ const u8 *ssid, size_t ssid_len)
+{
+ wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
+ MACSTR " dev " MACSTR " op_freq=%d)%s",
+ MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
+ auto_join ? " (auto_join)" : "");
+ if (ssid && ssid_len) {
+ wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
+ wpa_ssid_txt(ssid, ssid_len));
+ }
+
+ wpa_s->p2p_auto_pd = 0;
+ wpa_s->p2p_auto_join = !!auto_join;
+ os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
+ os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
+ wpa_s->pending_join_wps_method = wps_method;
+
+ /* Make sure we are not running find during connection establishment */
+ wpas_p2p_stop_find(wpa_s);
+
+ wpa_s->p2p_join_scan_count = 0;
+ wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
+ return 0;
+}
+
+
+static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
+ const u8 *ssid, size_t ssid_len)
+{
+ struct wpa_supplicant *group;
+ struct p2p_go_neg_results res;
+ struct wpa_bss *bss;
+
+ group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
+ if (group == NULL)
+ return -1;
+ if (group != wpa_s) {
+ os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
+ sizeof(group->p2p_pin));
+ group->p2p_wps_method = wpa_s->p2p_wps_method;
+ } else {
+ /*
+ * Need to mark the current interface for p2p_group_formation
+ * when a separate group interface is not used. This is needed
+ * to allow p2p_cancel stop a pending p2p_connect-join.
+ * wpas_p2p_init_group_interface() addresses this for the case
+ * where a separate group interface is used.
+ */
+ wpa_s->global->p2p_group_formation = wpa_s;
+ }
+
+ group->p2p_in_provisioning = 1;
+ group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
+
+ os_memset(&res, 0, sizeof(res));
+ os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
+ os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
+ ETH_ALEN);
+ res.wps_method = wpa_s->pending_join_wps_method;
+ if (freq && ssid && ssid_len) {
+ res.freq = freq;
+ res.ssid_len = ssid_len;
+ os_memcpy(res.ssid, ssid, ssid_len);
+ } else {
+ bss = wpa_bss_get_bssid_latest(wpa_s,
+ wpa_s->pending_join_iface_addr);
+ if (bss) {
+ res.freq = bss->freq;
+ res.ssid_len = bss->ssid_len;
+ os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
+ wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
+ bss->freq,
+ wpa_ssid_txt(bss->ssid, bss->ssid_len));
+ }
+ }
+
+ if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
+ wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
+ "starting client");
+ wpa_drv_cancel_remain_on_channel(wpa_s);
+ wpa_s->off_channel_freq = 0;
+ wpa_s->roc_waiting_drv_freq = 0;
+ }
+ wpas_start_wps_enrollee(group, &res);
+
+ /*
+ * Allow a longer timeout for join-a-running-group than normal 15
+ * second group formation timeout since the GO may not have authorized
+ * our connection yet.
+ */
+ eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
+ eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
+ wpa_s, NULL);
+
+ return 0;
+}
+
+
+static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
+ int *force_freq, int *pref_freq, int go,
+ unsigned int *pref_freq_list,
+ unsigned int *num_pref_freq)
+{
+ struct wpa_used_freq_data *freqs;
+ int res, best_freq, num_unused;
+ unsigned int freq_in_use = 0, num, i, max_pref_freq;
+
+ max_pref_freq = *num_pref_freq;
+ *num_pref_freq = 0;
+
+ freqs = os_calloc(wpa_s->num_multichan_concurrent,
+ sizeof(struct wpa_used_freq_data));
+ if (!freqs)
+ return -1;
+
+ num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
+ wpa_s->num_multichan_concurrent);
+
+ /*
+ * It is possible that the total number of used frequencies is bigger
+ * than the number of frequencies used for P2P, so get the system wide
+ * number of unused frequencies.
+ */
+ num_unused = wpas_p2p_num_unused_channels(wpa_s);
+
+ wpa_printf(MSG_DEBUG,
+ "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
+ freq, wpa_s->num_multichan_concurrent, num, num_unused);
+
+ if (freq > 0) {
+ int ret;
+ if (go)
+ ret = p2p_supported_freq(wpa_s->global->p2p, freq);
+ else
+ ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
+ if (!ret) {
+ if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
+ ieee80211_is_dfs(freq)) {
+ /*
+ * If freq is a DFS channel and DFS is offloaded
+ * to the driver, allow P2P GO to use it.
+ */
+ wpa_printf(MSG_DEBUG,
+ "P2P: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to the driver",
+ freq);
+ } else {
+ wpa_printf(MSG_DEBUG,
+ "P2P: The forced channel (%u MHz) is not supported for P2P uses",
+ freq);
+ res = -3;
+ goto exit_free;
+ }
+ }
+
+ for (i = 0; i < num; i++) {
+ if (freqs[i].freq == freq)
+ freq_in_use = 1;
+ }
+
+ if (num_unused <= 0 && !freq_in_use) {
+ wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
+ freq);
+ res = -2;
+ goto exit_free;
+ }
+ wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
+ "requested channel (%u MHz)", freq);
+ *force_freq = freq;
+ goto exit_ok;
+ }
+
+ best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
+
+ if (!wpa_s->conf->num_p2p_pref_chan && *pref_freq == 0) {
+ enum wpa_driver_if_type iface_type;
+
+ if (go)
+ iface_type = WPA_IF_P2P_GO;
+ else
+ iface_type = WPA_IF_P2P_CLIENT;
+
+ wpa_printf(MSG_DEBUG, "P2P: best_freq=%d, go=%d",
+ best_freq, go);
+
+ res = wpa_drv_get_pref_freq_list(wpa_s, iface_type,
+ &max_pref_freq,
+ pref_freq_list);
+ if (!res && max_pref_freq > 0) {
+ *num_pref_freq = max_pref_freq;
+ i = 0;
+ while (wpas_p2p_disallowed_freq(wpa_s->global,
+ pref_freq_list[i]) &&
+ i < *num_pref_freq) {
+ wpa_printf(MSG_DEBUG,
+ "P2P: preferred_freq_list[%d]=%d is disallowed",
+ i, pref_freq_list[i]);
+ i++;
+ }
+ if (i != *num_pref_freq) {
+ best_freq = pref_freq_list[i];
+ wpa_printf(MSG_DEBUG,
+ "P2P: Using preferred_freq_list[%d]=%d",
+ i, best_freq);
+ } else {
+ wpa_printf(MSG_DEBUG,
+ "P2P: All driver preferred frequencies are disallowed for P2P use");
+ *num_pref_freq = 0;
+ }
+ } else {
+ wpa_printf(MSG_DEBUG,
+ "P2P: No preferred frequency list available");
+ }
+ }
+
+ /* We have a candidate frequency to use */
+ if (best_freq > 0) {
+ if (*pref_freq == 0 && num_unused > 0) {
+ wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
+ best_freq);
+ *pref_freq = best_freq;
+ } else {
+ wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
+ best_freq);
+ *force_freq = best_freq;
+ }
+ } else if (num_unused > 0) {
+ wpa_printf(MSG_DEBUG,
+ "P2P: Current operating channels are not available for P2P. Try to use another channel");
+ *force_freq = 0;
+ } else {
+ wpa_printf(MSG_DEBUG,
+ "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
+ res = -2;
+ goto exit_free;
+ }
+
+exit_ok:
+ res = 0;
+exit_free:
+ os_free(freqs);
+ return res;
+}
+
+
+/**
+ * wpas_p2p_connect - Request P2P Group Formation to be started
+ * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
+ * @peer_addr: Address of the peer P2P Device
+ * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
+ * @persistent_group: Whether to create a persistent group
+ * @auto_join: Whether to select join vs. GO Negotiation automatically
+ * @join: Whether to join an existing group (as a client) instead of starting
+ * Group Owner negotiation; @peer_addr is BSSID in that case
+ * @auth: Whether to only authorize the connection instead of doing that and
+ * initiating Group Owner negotiation
+ * @go_intent: GO Intent or -1 to use default
+ * @freq: Frequency for the group or 0 for auto-selection
+ * @persistent_id: Persistent group credentials to use for forcing GO
+ * parameters or -1 to generate new values (SSID/passphrase)
+ * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
+ * interoperability workaround when initiating group formation
+ * @ht40: Start GO with 40 MHz channel width
+ * @vht: Start GO with VHT support
+ * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
+ * failure, -2 on failure due to channel not currently available,
+ * -3 if forced channel is not supported
+ */
+int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
+ const char *pin, enum p2p_wps_method wps_method,
+ int persistent_group, int auto_join, int join, int auth,
+ int go_intent, int freq, int persistent_id, int pd,
+ int ht40, int vht)
+{
+ int force_freq = 0, pref_freq = 0;
+ int ret = 0, res;
+ enum wpa_driver_if_type iftype;
+ const u8 *if_addr;
+ struct wpa_ssid *ssid = NULL;
+ unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
+
+ if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
+ return -1;
+
+ if (persistent_id >= 0) {
+ ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
+ if (ssid == NULL || ssid->disabled != 2 ||
+ ssid->mode != WPAS_MODE_P2P_GO)
+ return -1;
+ }
+
+ os_free(wpa_s->global->add_psk);
+ wpa_s->global->add_psk = NULL;
+
+ wpa_s->global->p2p_fail_on_wps_complete = 0;
+ wpa_s->global->pending_p2ps_group = 0;
+ wpa_s->p2ps_method_config_any = 0;
+
+ if (go_intent < 0)
+ go_intent = wpa_s->conf->p2p_go_intent;
+
+ if (!auth)
+ wpa_s->p2p_long_listen = 0;
+
+ wpa_s->p2p_wps_method = wps_method;
+ wpa_s->p2p_persistent_group = !!persistent_group;
+ wpa_s->p2p_persistent_id = persistent_id;
+ wpa_s->p2p_go_intent = go_intent;
+ wpa_s->p2p_connect_freq = freq;
+ wpa_s->p2p_fallback_to_go_neg = 0;
+ wpa_s->p2p_pd_before_go_neg = !!pd;
+ wpa_s->p2p_go_ht40 = !!ht40;
+ wpa_s->p2p_go_vht = !!vht;
+
+ if (pin)
+ os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
+ else if (wps_method == WPS_PIN_DISPLAY) {
+ ret = wps_generate_pin();
+ res = os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin),
+ "%08d", ret);
+ if (os_snprintf_error(sizeof(wpa_s->p2p_pin), res))
+ wpa_s->p2p_pin[sizeof(wpa_s->p2p_pin) - 1] = '\0';
+ wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
+ wpa_s->p2p_pin);
+ } else
+ wpa_s->p2p_pin[0] = '\0';
+
+ if (join || auto_join) {
+ u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
+ if (auth) {
+ wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
+ "connect a running group from " MACSTR,
+ MAC2STR(peer_addr));
+ os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
+ return ret;
+ }
+ os_memcpy(dev_addr, peer_addr, ETH_ALEN);
+ if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
+ iface_addr) < 0) {
+ os_memcpy(iface_addr, peer_addr, ETH_ALEN);
+ p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
+ dev_addr);
+ }
+ if (auto_join) {
+ os_get_reltime(&wpa_s->p2p_auto_started);
+ wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
+ "%ld.%06ld",
+ wpa_s->p2p_auto_started.sec,
+ wpa_s->p2p_auto_started.usec);
+ }
+ wpa_s->user_initiated_pd = 1;
+ if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
+ auto_join, freq, NULL, 0) < 0)
+ return -1;
+ return ret;
+ }
+
+ size = P2P_MAX_PREF_CHANNELS;
+ res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
+ go_intent == 15, pref_freq_list, &size);
+ if (res)
+ return res;
+ wpas_p2p_set_own_freq_preference(wpa_s,
+ force_freq ? force_freq : pref_freq);
+
+ p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
+
+ wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
+
+ if (wpa_s->create_p2p_iface) {
+ /* Prepare to add a new interface for the group */
+ iftype = WPA_IF_P2P_GROUP;
+ if (go_intent == 15)
+ iftype = WPA_IF_P2P_GO;
+ if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
+ wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
+ "interface for the group");