3 * Copyright (c) 2009-2010, Atheros Communications
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
19 #include "common/ieee802_11_common.h"
20 #include "common/ieee802_11_defs.h"
21 #include "common/wpa_ctrl.h"
22 #include "wps/wps_i.h"
24 #include "ap/hostapd.h"
25 #include "ap/p2p_hostapd.h"
26 #include "wpa_supplicant_i.h"
29 #include "config_ssid.h"
35 #include "wps_supplicant.h"
36 #include "p2p_supplicant.h"
39 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
40 static struct wpa_supplicant *
41 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
43 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s);
44 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
45 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
46 const u8 *dev_addr, enum p2p_wps_method wps_method);
47 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
48 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
51 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
52 struct wpa_scan_results *scan_res)
56 if (wpa_s->global->p2p_disabled)
59 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
62 for (i = 0; i < scan_res->num; i++) {
63 struct wpa_scan_res *bss = scan_res->res[i];
64 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
65 bss->freq, bss->level,
66 (const u8 *) (bss + 1),
71 p2p_scan_res_handled(wpa_s->global->p2p);
75 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq)
77 struct wpa_supplicant *wpa_s = ctx;
78 struct wpa_driver_scan_params params;
80 struct wpabuf *wps_ie, *ies;
81 int social_channels[] = { 2412, 2437, 2462, 0, 0 };
83 os_memset(¶ms, 0, sizeof(params));
85 /* P2P Wildcard SSID */
87 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
88 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
90 wpa_s->wps->dev.p2p = 1;
91 wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid,
96 ies = wpabuf_alloc(wpabuf_len(wps_ie) + 100);
101 wpabuf_put_buf(ies, wps_ie);
104 p2p_scan_ie(wpa_s->global->p2p, ies);
106 params.extra_ies = wpabuf_head(ies);
107 params.extra_ies_len = wpabuf_len(ies);
110 case P2P_SCAN_SOCIAL:
111 params.freqs = social_channels;
115 case P2P_SCAN_SPECIFIC:
116 social_channels[0] = freq;
117 social_channels[1] = 0;
118 params.freqs = social_channels;
120 case P2P_SCAN_SOCIAL_PLUS_ONE:
121 social_channels[3] = freq;
122 params.freqs = social_channels;
126 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
127 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
128 ret = ieee80211_sta_req_scan(wpa_s, ¶ms);
130 ret = wpa_drv_scan(wpa_s, ¶ms);
138 #ifdef CONFIG_CLIENT_MLME
139 static void p2p_rx_action_mlme(void *ctx, const u8 *buf, size_t len, int freq)
141 struct wpa_supplicant *wpa_s = ctx;
142 const struct ieee80211_mgmt *mgmt;
145 if (wpa_s->global->p2p_disabled)
147 mgmt = (const struct ieee80211_mgmt *) buf;
148 hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
151 p2p_rx_action(wpa_s->global->p2p, mgmt->da, mgmt->sa, mgmt->bssid,
152 mgmt->u.action.category,
153 &mgmt->u.action.u.vs_public_action.action,
154 len - hdr_len, freq);
156 #endif /* CONFIG_CLIENT_MLME */
159 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
161 switch (p2p_group_interface) {
162 case P2P_GROUP_INTERFACE_PENDING:
163 return WPA_IF_P2P_GROUP;
164 case P2P_GROUP_INTERFACE_GO:
165 return WPA_IF_P2P_GO;
166 case P2P_GROUP_INTERFACE_CLIENT:
167 return WPA_IF_P2P_CLIENT;
170 return WPA_IF_P2P_GROUP;
174 static void wpas_p2p_group_delete(struct wpa_supplicant *wpa_s)
176 struct wpa_ssid *ssid;
179 ssid = wpa_s->current_ssid;
182 * The current SSID was not known, but there may still be a
183 * pending P2P group interface waiting for provisioning.
185 ssid = wpa_s->conf->ssid;
187 if (ssid->p2p_group &&
188 (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
189 (ssid->key_mgmt & WPA_KEY_MGMT_WPS)))
194 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
196 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
197 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
198 wpa_s->reassociate = 0;
199 wpa_s->disconnected = 1;
200 wpa_supplicant_deauthenticate(wpa_s,
201 WLAN_REASON_DEAUTH_LEAVING);
205 if (wpa_s->cross_connect_in_use) {
206 wpa_s->cross_connect_in_use = 0;
207 wpa_msg(wpa_s->parent, MSG_INFO,
208 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
209 wpa_s->ifname, wpa_s->cross_connect_uplink);
211 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_REMOVED "%s %s",
212 wpa_s->ifname, gtype);
213 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
214 struct wpa_global *global;
216 enum wpa_driver_if_type type;
217 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
219 global = wpa_s->global;
220 ifname = os_strdup(wpa_s->ifname);
221 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
222 wpa_supplicant_remove_iface(wpa_s->global, wpa_s);
223 wpa_s = global->ifaces;
225 wpa_drv_if_remove(wpa_s, type, ifname);
230 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
231 if (ssid && (ssid->p2p_group ||
232 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
233 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
235 if (ssid == wpa_s->current_ssid)
236 wpa_s->current_ssid = NULL;
237 wpas_notify_network_removed(wpa_s, ssid);
238 wpa_config_remove_network(wpa_s->conf, id);
239 wpa_supplicant_clear_status(wpa_s);
241 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
244 wpa_supplicant_ap_deinit(wpa_s);
248 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
250 const u8 *ssid, size_t ssid_len)
258 if (wpa_s->go_params)
259 bssid = wpa_s->go_params->peer_interface_addr;
261 bssid = wpa_s->bssid;
263 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
265 u8 iface_addr[ETH_ALEN];
266 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
268 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
271 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
272 "group is persistent - BSS " MACSTR " not found",
277 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
279 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
280 "group is persistent - BSS " MACSTR
281 " did not include P2P IE", MAC2STR(bssid));
282 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
283 (u8 *) (bss + 1), bss->ie_len);
284 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
285 ((u8 *) bss + 1) + bss->ie_len,
290 group_capab = p2p_get_group_capab(p2p);
291 addr = p2p_get_go_dev_addr(p2p);
292 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
293 "group_capab=0x%x", group_capab);
295 os_memcpy(go_dev_addr, addr, ETH_ALEN);
296 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
299 os_memset(go_dev_addr, 0, ETH_ALEN);
302 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
303 "go_dev_addr=" MACSTR,
304 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
306 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
310 static void wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
311 struct wpa_ssid *ssid,
312 const u8 *go_dev_addr)
317 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
318 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
319 for (s = wpa_s->conf->ssid; s; s = s->next) {
320 if (s->disabled == 2 &&
321 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
322 s->ssid_len == ssid->ssid_len &&
323 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
328 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
330 if (ssid->passphrase && !s->passphrase)
332 else if (ssid->passphrase && s->passphrase &&
333 os_strcmp(ssid->passphrase, s->passphrase) != 0)
336 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
339 s = wpa_config_add_network(wpa_s->conf);
342 wpa_config_set_network_defaults(s);
346 s->p2p_persistent_group = 1;
349 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
350 s->mode = ssid->mode;
351 s->auth_alg = WPA_AUTH_ALG_OPEN;
352 s->key_mgmt = WPA_KEY_MGMT_PSK;
353 s->proto = WPA_PROTO_RSN;
354 s->pairwise_cipher = WPA_CIPHER_CCMP;
355 if (ssid->passphrase) {
356 os_free(s->passphrase);
357 s->passphrase = os_strdup(ssid->passphrase);
361 os_memcpy(s->psk, ssid->psk, 32);
363 if (s->passphrase && !s->psk_set)
364 wpa_config_update_psk(s);
365 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
367 s->ssid = os_malloc(ssid->ssid_len);
370 s->ssid_len = ssid->ssid_len;
371 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
374 #ifndef CONFIG_NO_CONFIG_WRITE
375 if (changed && wpa_s->conf->update_config &&
376 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
377 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
379 #endif /* CONFIG_NO_CONFIG_WRITE */
383 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
386 struct wpa_ssid *ssid;
387 const char *ssid_txt;
390 u8 go_dev_addr[ETH_ALEN];
393 * This callback is likely called for the main interface. Update wpa_s
394 * to use the group interface if a new interface was created for the
397 if (wpa_s->global->p2p_group_formation)
398 wpa_s = wpa_s->global->p2p_group_formation;
399 wpa_s->p2p_in_provisioning = 0;
402 wpa_msg(wpa_s->parent, MSG_INFO,
403 P2P_EVENT_GROUP_FORMATION_FAILURE);
404 wpas_p2p_group_delete(wpa_s);
408 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_FORMATION_SUCCESS);
410 ssid = wpa_s->current_ssid;
411 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
412 ssid->mode = WPAS_MODE_P2P_GO;
413 p2p_group_notif_formation_done(wpa_s->p2p_group);
414 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
419 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
420 client = ssid->mode == WPAS_MODE_INFRA;
421 if (ssid->mode == WPAS_MODE_P2P_GO) {
422 persistent = ssid->p2p_persistent_group;
423 os_memcpy(go_dev_addr, wpa_s->parent->own_addr,
426 persistent = wpas_p2p_persistent_group(wpa_s,
432 client = wpa_s->p2p_group_interface ==
433 P2P_GROUP_INTERFACE_CLIENT;
436 wpa_s->show_group_started = 0;
439 * Indicate event only after successfully completed 4-way
440 * handshake, i.e., when the interface is ready for data
443 wpa_s->show_group_started = 1;
444 } else if (ssid && ssid->passphrase == NULL && ssid->psk_set) {
446 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
447 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
448 "%s GO ssid=\"%s\" psk=%s go_dev_addr=" MACSTR "%s",
449 wpa_s->ifname, ssid_txt, psk, MAC2STR(go_dev_addr),
450 persistent ? " [PERSISTENT]" : "");
451 wpas_p2p_cross_connect_setup(wpa_s);
453 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
454 "%s GO ssid=\"%s\" passphrase=\"%s\" go_dev_addr="
456 wpa_s->ifname, ssid_txt,
457 ssid && ssid->passphrase ? ssid->passphrase : "",
458 MAC2STR(go_dev_addr),
459 persistent ? " [PERSISTENT]" : "");
460 wpas_p2p_cross_connect_setup(wpa_s);
464 wpas_p2p_store_persistent_group(wpa_s->parent, ssid,
469 static void wpas_send_action_cb(void *eloop_ctx, void *timeout_ctx)
471 struct wpa_supplicant *wpa_s = eloop_ctx;
472 struct wpa_supplicant *iface;
476 without_roc = wpa_s->pending_action_without_roc;
477 wpa_s->pending_action_without_roc = 0;
478 wpa_printf(MSG_DEBUG, "P2P: Send Action callback (without_roc=%d "
479 "pending_action_tx=%p)",
480 without_roc, wpa_s->pending_action_tx);
482 if (wpa_s->pending_action_tx == NULL)
485 if (wpa_s->off_channel_freq != wpa_s->pending_action_freq &&
486 wpa_s->pending_action_freq != 0) {
487 wpa_printf(MSG_DEBUG, "P2P: Pending Action frame TX "
488 "waiting for another freq=%u (off_channel_freq=%u)",
489 wpa_s->pending_action_freq,
490 wpa_s->off_channel_freq);
491 if (without_roc && wpa_s->off_channel_freq == 0) {
493 * We may get here if wpas_send_action() found us to be
494 * on the correct channel, but remain-on-channel cancel
495 * event was received before getting here.
497 wpa_printf(MSG_DEBUG, "P2P: Schedule "
498 "remain-on-channel to send Action frame");
499 if (wpa_drv_remain_on_channel(
500 wpa_s, wpa_s->pending_action_freq, 200) <
502 wpa_printf(MSG_DEBUG, "P2P: Failed to request "
503 "driver to remain on channel (%u "
504 "MHz) for Action Frame TX",
505 wpa_s->pending_action_freq);
507 wpa_s->roc_waiting_drv_freq =
508 wpa_s->pending_action_freq;
514 * This call is likely going to be on the P2P device instance if the
515 * driver uses a separate interface for that purpose. However, some
516 * Action frames are actually sent within a P2P Group and when that is
517 * the case, we need to follow power saving (e.g., GO buffering the
518 * frame for a client in PS mode or a client following the advertised
519 * NoA from its GO). To make that easier for the driver, select the
520 * correct group interface here.
522 if (os_memcmp(wpa_s->pending_action_src, wpa_s->own_addr, ETH_ALEN) !=
525 * Try to find a group interface that matches with the source
528 iface = wpa_s->global->ifaces;
530 if (os_memcmp(wpa_s->pending_action_src,
531 iface->own_addr, ETH_ALEN) == 0)
536 wpa_printf(MSG_DEBUG, "P2P: Use group interface %s "
537 "instead of interface %s for Action TX",
538 iface->ifname, wpa_s->ifname);
544 wpa_printf(MSG_DEBUG, "P2P: Sending pending Action frame to "
545 MACSTR " using interface %s",
546 MAC2STR(wpa_s->pending_action_dst), iface->ifname);
547 res = wpa_drv_send_action(iface, wpa_s->pending_action_freq,
548 wpa_s->pending_action_dst,
549 wpa_s->pending_action_src,
550 wpa_s->pending_action_bssid,
551 wpabuf_head(wpa_s->pending_action_tx),
552 wpabuf_len(wpa_s->pending_action_tx));
554 wpa_printf(MSG_DEBUG, "P2P: Failed to send the pending "
557 * Use fake TX status event to allow P2P state machine to
560 wpas_send_action_tx_status(
561 wpa_s, wpa_s->pending_action_dst,
562 wpabuf_head(wpa_s->pending_action_tx),
563 wpabuf_len(wpa_s->pending_action_tx), 0);
568 void wpas_send_action_tx_status(struct wpa_supplicant *wpa_s, const u8 *dst,
569 const u8 *data, size_t data_len, int ack)
571 if (wpa_s->global->p2p_disabled)
574 if (wpa_s->pending_action_tx == NULL) {
575 wpa_printf(MSG_DEBUG, "P2P: Ignore Action TX status - no "
576 "pending operation");
580 if (os_memcmp(dst, wpa_s->pending_action_dst, ETH_ALEN) != 0) {
581 wpa_printf(MSG_DEBUG, "P2P: Ignore Action TX status - unknown "
582 "destination address");
586 wpabuf_free(wpa_s->pending_action_tx);
587 wpa_s->pending_action_tx = NULL;
589 p2p_send_action_cb(wpa_s->global->p2p, wpa_s->pending_action_freq,
590 wpa_s->pending_action_dst,
591 wpa_s->pending_action_src,
592 wpa_s->pending_action_bssid,
595 if (wpa_s->pending_pd_before_join &&
596 (os_memcmp(wpa_s->pending_action_dst, wpa_s->pending_join_dev_addr,
598 os_memcmp(wpa_s->pending_action_dst,
599 wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
600 wpa_s->pending_pd_before_join = 0;
601 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
602 "join-existing-group operation");
603 wpas_p2p_join_start(wpa_s);
608 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
609 const u8 *src, const u8 *bssid, const u8 *buf,
610 size_t len, unsigned int wait_time)
612 struct wpa_supplicant *wpa_s = ctx;
614 wpa_printf(MSG_DEBUG, "P2P: Send action frame: freq=%d dst=" MACSTR
615 " src=" MACSTR " bssid=" MACSTR " len=%d",
616 freq, MAC2STR(dst), MAC2STR(src), MAC2STR(bssid),
619 if (wpa_s->pending_action_tx) {
620 wpa_printf(MSG_DEBUG, "P2P: Dropped pending Action frame TX "
621 "to " MACSTR, MAC2STR(wpa_s->pending_action_dst));
622 wpabuf_free(wpa_s->pending_action_tx);
624 wpa_s->pending_action_tx = wpabuf_alloc(len);
625 if (wpa_s->pending_action_tx == NULL) {
626 wpa_printf(MSG_DEBUG, "P2P: Failed to allocate Action frame "
627 "TX buffer (len=%llu)", (unsigned long long) len);
630 wpabuf_put_data(wpa_s->pending_action_tx, buf, len);
631 os_memcpy(wpa_s->pending_action_src, src, ETH_ALEN);
632 os_memcpy(wpa_s->pending_action_dst, dst, ETH_ALEN);
633 os_memcpy(wpa_s->pending_action_bssid, bssid, ETH_ALEN);
634 wpa_s->pending_action_freq = freq;
636 if (wpa_s->off_channel_freq == freq || freq == 0) {
637 wpa_printf(MSG_DEBUG, "P2P: Already on requested channel; "
638 "send Action frame immediately");
639 /* TODO: Would there ever be need to extend the current
640 * duration on the channel? */
641 wpa_s->pending_action_without_roc = 1;
642 eloop_cancel_timeout(wpas_send_action_cb, wpa_s, NULL);
643 eloop_register_timeout(0, 0, wpas_send_action_cb, wpa_s, NULL);
646 wpa_s->pending_action_without_roc = 0;
648 if (wpa_s->roc_waiting_drv_freq == freq) {
649 wpa_printf(MSG_DEBUG, "P2P: Already waiting for driver to get "
650 "to frequency %u MHz; continue waiting to send the "
651 "Action frame", freq);
655 wpa_printf(MSG_DEBUG, "P2P: Schedule Action frame to be transmitted "
656 "once the driver gets to the requested channel");
657 if (wait_time > wpa_s->max_remain_on_chan)
658 wait_time = wpa_s->max_remain_on_chan;
659 if (wpa_drv_remain_on_channel(wpa_s, freq, wait_time) < 0) {
660 wpa_printf(MSG_DEBUG, "P2P: Failed to request driver "
661 "to remain on channel (%u MHz) for Action "
665 wpa_s->roc_waiting_drv_freq = freq;
671 static void wpas_send_action_done(void *ctx)
673 struct wpa_supplicant *wpa_s = ctx;
674 wpa_printf(MSG_DEBUG, "P2P: Action frame sequence done notification");
675 wpabuf_free(wpa_s->pending_action_tx);
676 wpa_s->pending_action_tx = NULL;
677 if (wpa_s->off_channel_freq) {
678 wpa_drv_cancel_remain_on_channel(wpa_s);
679 wpa_s->off_channel_freq = 0;
680 wpa_s->roc_waiting_drv_freq = 0;
685 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
686 struct p2p_go_neg_results *params)
688 if (wpa_s->go_params == NULL) {
689 wpa_s->go_params = os_malloc(sizeof(*params));
690 if (wpa_s->go_params == NULL)
693 os_memcpy(wpa_s->go_params, params, sizeof(*params));
698 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
699 struct p2p_go_neg_results *res)
701 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
702 res->ssid, res->ssid_len);
703 wpa_supplicant_ap_deinit(wpa_s);
704 wpas_copy_go_neg_results(wpa_s, res);
705 if (res->wps_method == WPS_PBC)
706 wpas_wps_start_pbc(wpa_s, NULL /* res->peer_interface_addr */,
709 u16 dev_pw_id = DEV_PW_DEFAULT;
710 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
711 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
712 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
713 wpa_s->p2p_pin, 1, dev_pw_id);
718 static void p2p_go_configured(void *ctx, void *data)
720 struct wpa_supplicant *wpa_s = ctx;
721 struct p2p_go_neg_results *params = data;
722 struct wpa_ssid *ssid;
724 ssid = wpa_s->current_ssid;
725 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
726 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
727 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
728 "%s GO ssid=\"%s\" passphrase=\"%s\" go_dev_addr="
731 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
732 params->passphrase ? params->passphrase : "",
733 MAC2STR(wpa_s->parent->own_addr),
734 params->persistent_group ? " [PERSISTENT]" : "");
735 if (params->persistent_group)
736 wpas_p2p_store_persistent_group(
738 wpa_s->parent->own_addr);
739 wpas_p2p_cross_connect_setup(wpa_s);
743 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
744 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
745 params->peer_interface_addr)) {
746 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
750 if (params->wps_method == WPS_PBC)
751 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr);
752 else if (wpa_s->p2p_pin[0])
753 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
754 wpa_s->p2p_pin, NULL, 0);
755 os_free(wpa_s->go_params);
756 wpa_s->go_params = NULL;
760 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
761 struct p2p_go_neg_results *params,
764 struct wpa_ssid *ssid;
766 if (wpas_copy_go_neg_results(wpa_s, params) < 0)
769 ssid = wpa_config_add_network(wpa_s->conf);
773 wpa_config_set_network_defaults(ssid);
776 ssid->p2p_persistent_group = params->persistent_group;
777 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
779 ssid->frequency = params->freq;
780 ssid->ssid = os_zalloc(params->ssid_len + 1);
782 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
783 ssid->ssid_len = params->ssid_len;
785 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
786 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
787 ssid->proto = WPA_PROTO_RSN;
788 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
789 ssid->passphrase = os_strdup(params->passphrase);
791 wpa_s->ap_configured_cb = p2p_go_configured;
792 wpa_s->ap_configured_cb_ctx = wpa_s;
793 wpa_s->ap_configured_cb_data = wpa_s->go_params;
794 wpa_s->connect_without_scan = 1;
795 wpa_s->reassociate = 1;
796 wpa_s->disconnected = 0;
797 wpa_supplicant_req_scan(wpa_s, 0, 0);
801 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
802 const struct wpa_supplicant *src)
804 struct wpa_config *d;
805 const struct wpa_config *s;
810 #define C(n) if (s->n) d->n = os_strdup(s->n)
822 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
823 enum wpa_driver_if_type type)
825 char ifname[120], force_ifname[120];
827 if (wpa_s->pending_interface_name[0]) {
828 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
829 "- skip creation of a new one");
830 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
831 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
832 "unknown?! ifname='%s'",
833 wpa_s->pending_interface_name);
839 os_snprintf(ifname, sizeof(ifname), "%s-p2p-%d", wpa_s->ifname,
840 wpa_s->p2p_group_idx);
841 force_ifname[0] = '\0';
843 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
845 wpa_s->p2p_group_idx++;
847 wpa_s->pending_interface_type = type;
848 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
849 wpa_s->pending_interface_addr) < 0) {
850 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
855 if (force_ifname[0]) {
856 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
858 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
859 sizeof(wpa_s->pending_interface_name));
861 os_strlcpy(wpa_s->pending_interface_name, ifname,
862 sizeof(wpa_s->pending_interface_name));
863 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
864 MACSTR, wpa_s->pending_interface_name,
865 MAC2STR(wpa_s->pending_interface_addr));
871 static void wpas_p2p_remove_pending_group_interface(
872 struct wpa_supplicant *wpa_s)
874 if (!wpa_s->pending_interface_name[0] ||
875 is_zero_ether_addr(wpa_s->pending_interface_addr))
876 return; /* No pending virtual interface */
878 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
879 wpa_s->pending_interface_name);
880 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
881 wpa_s->pending_interface_name);
882 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
883 wpa_s->pending_interface_name[0] = '\0';
887 static struct wpa_supplicant *
888 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
890 struct wpa_interface iface;
891 struct wpa_supplicant *group_wpa_s;
893 if (!wpa_s->pending_interface_name[0]) {
894 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
898 os_memset(&iface, 0, sizeof(iface));
899 iface.ifname = wpa_s->pending_interface_name;
900 iface.driver = wpa_s->driver->name;
901 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
902 iface.driver_param = wpa_s->conf->driver_param;
903 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
904 if (group_wpa_s == NULL) {
905 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
906 "wpa_supplicant interface");
909 wpa_s->pending_interface_name[0] = '\0';
910 group_wpa_s->parent = wpa_s;
911 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
912 P2P_GROUP_INTERFACE_CLIENT;
913 wpa_s->global->p2p_group_formation = group_wpa_s;
915 wpas_p2p_clone_config(group_wpa_s, wpa_s);
921 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
924 struct wpa_supplicant *wpa_s = eloop_ctx;
925 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
926 if (wpa_s->global->p2p)
927 p2p_group_formation_failed(wpa_s->global->p2p);
928 wpas_group_formation_completed(wpa_s, 0);
932 void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
934 struct wpa_supplicant *wpa_s = ctx;
936 if (wpa_s->off_channel_freq) {
937 wpa_drv_cancel_remain_on_channel(wpa_s);
938 wpa_s->off_channel_freq = 0;
939 wpa_s->roc_waiting_drv_freq = 0;
943 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_FAILURE "status=%d",
945 wpas_p2p_remove_pending_group_interface(wpa_s);
949 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS);
951 if (wpa_s->create_p2p_iface) {
952 struct wpa_supplicant *group_wpa_s =
953 wpas_p2p_init_group_interface(wpa_s, res->role_go);
954 if (group_wpa_s == NULL) {
955 wpas_p2p_remove_pending_group_interface(wpa_s);
958 if (group_wpa_s != wpa_s) {
959 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
960 sizeof(group_wpa_s->p2p_pin));
961 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
963 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
964 wpa_s->pending_interface_name[0] = '\0';
965 group_wpa_s->p2p_in_provisioning = 1;
968 wpas_start_wps_go(group_wpa_s, res, 1);
970 wpas_start_wps_enrollee(group_wpa_s, res);
972 wpa_s->p2p_in_provisioning = 1;
973 wpa_s->global->p2p_group_formation = wpa_s;
976 wpas_start_wps_go(wpa_s, res, 1);
978 wpas_start_wps_enrollee(ctx, res);
981 wpa_s->p2p_long_listen = 0;
982 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
984 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
985 /* TODO: add peer Config Timeout */
986 eloop_register_timeout(15, 0, wpas_p2p_group_formation_timeout, wpa_s,
991 void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
993 struct wpa_supplicant *wpa_s = ctx;
994 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
995 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
999 void wpas_dev_found(void *ctx, const u8 *addr, const u8 *dev_addr,
1000 const u8 *pri_dev_type, const char *dev_name,
1001 u16 config_methods, u8 dev_capab, u8 group_capab)
1003 struct wpa_supplicant *wpa_s = ctx;
1004 char devtype[WPS_DEV_TYPE_BUFSIZE];
1005 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
1006 " p2p_dev_addr=" MACSTR
1007 " pri_dev_type=%s name='%s' config_methods=0x%x "
1008 "dev_capab=0x%x group_capab=0x%x",
1009 MAC2STR(addr), MAC2STR(dev_addr),
1010 wps_dev_type_bin2str(pri_dev_type, devtype, sizeof(devtype)),
1011 dev_name, config_methods, dev_capab, group_capab);
1015 static int wpas_start_listen(void *ctx, unsigned int freq,
1016 unsigned int duration,
1017 const struct wpabuf *probe_resp_ie)
1019 struct wpa_supplicant *wpa_s = ctx;
1021 wpa_drv_set_ap_wps_ie(wpa_s, NULL, probe_resp_ie);
1023 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1024 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1025 "report received Probe Request frames");
1029 wpa_s->pending_listen_freq = freq;
1030 wpa_s->pending_listen_duration = duration;
1032 if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) {
1033 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1034 "to remain on channel (%u MHz) for Listen "
1036 wpa_s->pending_listen_freq = 0;
1039 wpa_s->roc_waiting_drv_freq = freq;
1045 static void wpas_stop_listen(void *ctx)
1047 struct wpa_supplicant *wpa_s = ctx;
1048 if (wpa_s->off_channel_freq) {
1049 wpa_drv_cancel_remain_on_channel(wpa_s);
1050 wpa_s->off_channel_freq = 0;
1051 wpa_s->roc_waiting_drv_freq = 0;
1053 wpa_drv_probe_req_report(wpa_s, 0);
1057 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1059 struct wpa_supplicant *wpa_s = ctx;
1060 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf));
1064 static struct p2p_srv_bonjour *
1065 wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1066 const struct wpabuf *query)
1068 struct p2p_srv_bonjour *bsrv;
1071 len = wpabuf_len(query);
1072 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1073 struct p2p_srv_bonjour, list) {
1074 if (len == wpabuf_len(bsrv->query) &&
1075 os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1083 static struct p2p_srv_upnp *
1084 wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
1085 const char *service)
1087 struct p2p_srv_upnp *usrv;
1089 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1090 struct p2p_srv_upnp, list) {
1091 if (version == usrv->version &&
1092 os_strcmp(service, usrv->service) == 0)
1099 static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
1104 if (wpabuf_tailroom(resp) < 5)
1107 /* Length (to be filled) */
1108 len_pos = wpabuf_put(resp, 2);
1109 wpabuf_put_u8(resp, srv_proto);
1110 wpabuf_put_u8(resp, srv_trans_id);
1112 wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
1113 /* Response Data: empty */
1114 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1118 static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
1119 struct wpabuf *resp, u8 srv_trans_id)
1121 struct p2p_srv_bonjour *bsrv;
1124 wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
1126 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1127 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1131 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1132 struct p2p_srv_bonjour, list) {
1133 if (wpabuf_tailroom(resp) <
1134 5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
1136 /* Length (to be filled) */
1137 len_pos = wpabuf_put(resp, 2);
1138 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1139 wpabuf_put_u8(resp, srv_trans_id);
1141 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1142 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1143 wpabuf_head(bsrv->resp),
1144 wpabuf_len(bsrv->resp));
1146 wpabuf_put_buf(resp, bsrv->query); /* Key */
1147 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1148 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1154 static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
1155 struct wpabuf *resp, u8 srv_trans_id,
1156 const u8 *query, size_t query_len)
1158 struct p2p_srv_bonjour *bsrv;
1162 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
1164 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1165 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1166 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
1171 if (query_len == 0) {
1172 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1176 if (wpabuf_tailroom(resp) < 5)
1178 /* Length (to be filled) */
1179 len_pos = wpabuf_put(resp, 2);
1180 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1181 wpabuf_put_u8(resp, srv_trans_id);
1183 wpabuf_set(&buf, query, query_len);
1184 bsrv = wpas_p2p_service_get_bonjour(wpa_s, &buf);
1186 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
1190 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1191 /* Response Data: empty */
1192 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1198 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1199 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1200 wpabuf_head(bsrv->resp), wpabuf_len(bsrv->resp));
1202 if (wpabuf_tailroom(resp) >=
1203 wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp)) {
1205 wpabuf_put_buf(resp, bsrv->query); /* Key */
1206 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1208 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1212 static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
1213 struct wpabuf *resp, u8 srv_trans_id)
1215 struct p2p_srv_upnp *usrv;
1218 wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
1220 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1221 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1225 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1226 struct p2p_srv_upnp, list) {
1227 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
1230 /* Length (to be filled) */
1231 len_pos = wpabuf_put(resp, 2);
1232 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1233 wpabuf_put_u8(resp, srv_trans_id);
1236 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1238 wpabuf_put_u8(resp, usrv->version);
1239 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1241 wpabuf_put_str(resp, usrv->service);
1242 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1248 static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
1249 struct wpabuf *resp, u8 srv_trans_id,
1250 const u8 *query, size_t query_len)
1252 struct p2p_srv_upnp *usrv;
1258 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
1261 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1262 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1263 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
1268 if (query_len == 0) {
1269 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1274 str = os_malloc(query_len);
1277 os_memcpy(str, query + 1, query_len - 1);
1278 str[query_len - 1] = '\0';
1280 if (wpabuf_tailroom(resp) < 5)
1283 /* Length (to be filled) */
1284 len_pos = wpabuf_put(resp, 2);
1285 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1286 wpabuf_put_u8(resp, srv_trans_id);
1288 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1289 struct p2p_srv_upnp, list) {
1290 if (version != usrv->version)
1293 if (os_strcmp(str, "ssdp:all") != 0 &&
1294 os_strstr(usrv->service, str) == NULL)
1297 if (wpabuf_tailroom(resp) < 2)
1301 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1303 wpabuf_put_u8(resp, version);
1305 wpabuf_put_u8(resp, ',');
1309 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1311 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
1313 wpabuf_put_str(resp, usrv->service);
1317 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
1320 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1321 /* Response Data: empty */
1324 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1328 void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
1329 u16 update_indic, const u8 *tlvs, size_t tlvs_len)
1331 struct wpa_supplicant *wpa_s = ctx;
1332 const u8 *pos = tlvs;
1333 const u8 *end = tlvs + tlvs_len;
1336 struct wpabuf *resp;
1337 u8 srv_proto, srv_trans_id;
1341 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
1343 buf_len = 2 * tlvs_len + 1;
1344 buf = os_malloc(buf_len);
1346 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1347 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
1349 freq, MAC2STR(sa), dialog_token, update_indic,
1354 if (wpa_s->p2p_sd_over_ctrl_iface)
1355 return; /* to be processed by an external program */
1357 resp = wpabuf_alloc(10000);
1361 while (pos + 1 < end) {
1362 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
1363 slen = WPA_GET_LE16(pos);
1365 if (pos + slen > end || slen < 2) {
1366 wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
1371 tlv_end = pos + slen;
1374 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1376 srv_trans_id = *pos++;
1377 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1380 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
1381 pos, tlv_end - pos);
1384 if (wpa_s->force_long_sd) {
1385 wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
1387 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1388 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1392 switch (srv_proto) {
1393 case P2P_SERV_ALL_SERVICES:
1394 wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
1395 "for all services");
1396 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
1397 dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1398 wpa_printf(MSG_DEBUG, "P2P: No service "
1399 "discovery protocols available");
1400 wpas_sd_add_proto_not_avail(
1401 resp, P2P_SERV_ALL_SERVICES,
1405 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1406 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1408 case P2P_SERV_BONJOUR:
1409 wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
1410 pos, tlv_end - pos);
1413 wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
1414 pos, tlv_end - pos);
1417 wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
1418 "protocol %u", srv_proto);
1419 wpas_sd_add_proto_not_avail(resp, srv_proto,
1428 wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
1434 void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
1435 const u8 *tlvs, size_t tlvs_len)
1437 struct wpa_supplicant *wpa_s = ctx;
1438 const u8 *pos = tlvs;
1439 const u8 *end = tlvs + tlvs_len;
1445 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
1447 if (tlvs_len > 1500) {
1448 /* TODO: better way for handling this */
1449 wpa_msg_ctrl(wpa_s, MSG_INFO,
1450 P2P_EVENT_SERV_DISC_RESP MACSTR
1451 " %u <long response: %u bytes>",
1452 MAC2STR(sa), update_indic,
1453 (unsigned int) tlvs_len);
1455 buf_len = 2 * tlvs_len + 1;
1456 buf = os_malloc(buf_len);
1458 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1459 wpa_msg_ctrl(wpa_s, MSG_INFO,
1460 P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
1461 MAC2STR(sa), update_indic, buf);
1467 u8 srv_proto, srv_trans_id, status;
1469 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
1470 slen = WPA_GET_LE16(pos);
1472 if (pos + slen > end || slen < 3) {
1473 wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
1477 tlv_end = pos + slen;
1480 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1482 srv_trans_id = *pos++;
1483 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1486 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
1489 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
1490 pos, tlv_end - pos);
1497 void * wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
1498 const struct wpabuf *tlvs)
1500 return p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
1504 void * wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
1505 u8 version, const char *query)
1507 struct wpabuf *tlvs;
1510 tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
1513 wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
1514 wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
1515 wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
1516 wpabuf_put_u8(tlvs, version);
1517 wpabuf_put_str(tlvs, query);
1518 ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
1524 int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, void *req)
1526 return p2p_sd_cancel_request(wpa_s->global->p2p, req);
1530 void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
1531 const u8 *dst, u8 dialog_token,
1532 const struct wpabuf *resp_tlvs)
1534 p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
1539 void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
1541 p2p_sd_service_update(wpa_s->global->p2p);
1545 static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
1547 dl_list_del(&bsrv->list);
1548 wpabuf_free(bsrv->query);
1549 wpabuf_free(bsrv->resp);
1554 static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
1556 dl_list_del(&usrv->list);
1557 os_free(usrv->service);
1562 void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
1564 struct p2p_srv_bonjour *bsrv, *bn;
1565 struct p2p_srv_upnp *usrv, *un;
1567 dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
1568 struct p2p_srv_bonjour, list)
1569 wpas_p2p_srv_bonjour_free(bsrv);
1571 dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
1572 struct p2p_srv_upnp, list)
1573 wpas_p2p_srv_upnp_free(usrv);
1575 wpas_p2p_sd_service_update(wpa_s);
1579 int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
1580 struct wpabuf *query, struct wpabuf *resp)
1582 struct p2p_srv_bonjour *bsrv;
1584 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1587 wpabuf_free(bsrv->resp);
1592 bsrv = os_zalloc(sizeof(*bsrv));
1595 bsrv->query = query;
1597 dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
1599 wpas_p2p_sd_service_update(wpa_s);
1604 int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
1605 const struct wpabuf *query)
1607 struct p2p_srv_bonjour *bsrv;
1609 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1612 wpas_p2p_srv_bonjour_free(bsrv);
1613 wpas_p2p_sd_service_update(wpa_s);
1618 int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
1619 const char *service)
1621 struct p2p_srv_upnp *usrv;
1623 if (wpas_p2p_service_get_upnp(wpa_s, version, service))
1624 return 0; /* Already listed */
1625 usrv = os_zalloc(sizeof(*usrv));
1628 usrv->version = version;
1629 usrv->service = os_strdup(service);
1630 if (usrv->service == NULL) {
1634 dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
1636 wpas_p2p_sd_service_update(wpa_s);
1641 int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
1642 const char *service)
1644 struct p2p_srv_upnp *usrv;
1646 usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
1649 wpas_p2p_srv_upnp_free(usrv);
1650 wpas_p2p_sd_service_update(wpa_s);
1655 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
1656 const u8 *peer, const char *params)
1658 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR " %08d%s",
1659 MAC2STR(peer), wps_generate_pin(), params);
1663 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
1664 const u8 *peer, const char *params)
1666 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR "%s",
1667 MAC2STR(peer), params);
1671 void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
1672 const u8 *dev_addr, const u8 *pri_dev_type,
1673 const char *dev_name, u16 supp_config_methods,
1674 u8 dev_capab, u8 group_capab)
1676 struct wpa_supplicant *wpa_s = ctx;
1677 char devtype[WPS_DEV_TYPE_BUFSIZE];
1679 u8 empty_dev_type[8];
1681 if (pri_dev_type == NULL) {
1682 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
1683 pri_dev_type = empty_dev_type;
1685 os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
1686 " pri_dev_type=%s name='%s' config_methods=0x%x "
1687 "dev_capab=0x%x group_capab=0x%x",
1689 wps_dev_type_bin2str(pri_dev_type, devtype,
1691 dev_name, supp_config_methods, dev_capab, group_capab);
1692 params[sizeof(params) - 1] = '\0';
1694 if (config_methods & WPS_CONFIG_DISPLAY)
1695 wpas_prov_disc_local_display(wpa_s, peer, params);
1696 else if (config_methods & WPS_CONFIG_KEYPAD)
1697 wpas_prov_disc_local_keypad(wpa_s, peer, params);
1698 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1699 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ MACSTR
1700 "%s", MAC2STR(peer), params);
1704 void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
1706 struct wpa_supplicant *wpa_s = ctx;
1707 if (config_methods & WPS_CONFIG_DISPLAY)
1708 wpas_prov_disc_local_keypad(wpa_s, peer, "");
1709 else if (config_methods & WPS_CONFIG_KEYPAD)
1710 wpas_prov_disc_local_display(wpa_s, peer, "");
1711 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1712 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP MACSTR,
1715 if (wpa_s->pending_pd_before_join &&
1716 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1717 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
1718 wpa_s->pending_pd_before_join = 0;
1719 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
1720 "join-existing-group operation");
1721 wpas_p2p_join_start(wpa_s);
1726 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
1727 const u8 *go_dev_addr, const u8 *ssid,
1728 size_t ssid_len, int *go, u8 *group_bssid,
1729 int *force_freq, int persistent_group)
1731 struct wpa_supplicant *wpa_s = ctx;
1733 u8 cur_bssid[ETH_ALEN];
1736 if (!persistent_group) {
1737 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1738 " to join an active group", MAC2STR(sa));
1739 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
1740 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
1742 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
1743 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
1744 "authorized invitation");
1748 * Do not accept the invitation automatically; notify user and
1751 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1754 if (!wpa_s->conf->persistent_reconnect)
1755 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1757 for (s = wpa_s->conf->ssid; s; s = s->next) {
1758 if (s->disabled == 2 &&
1759 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
1760 s->ssid_len == ssid_len &&
1761 os_memcmp(ssid, s->ssid, ssid_len) == 0)
1766 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1767 " requested reinvocation of an unknown group",
1769 return P2P_SC_FAIL_UNKNOWN_GROUP;
1772 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
1774 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1775 wpa_printf(MSG_DEBUG, "P2P: The only available "
1776 "interface is already in use - reject "
1778 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1780 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
1781 } else if (s->mode == WPAS_MODE_P2P_GO) {
1783 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
1785 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
1786 "interface address for the group");
1787 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1789 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
1794 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, cur_bssid) == 0 &&
1795 wpa_s->assoc_freq) {
1796 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
1797 "the channel we are already using");
1798 *force_freq = wpa_s->assoc_freq;
1801 res = wpa_drv_shared_freq(wpa_s);
1803 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
1804 "with the channel we are already using on a "
1805 "shared interface");
1809 return P2P_SC_SUCCESS;
1813 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
1814 const u8 *ssid, size_t ssid_len,
1815 const u8 *go_dev_addr, u8 status,
1818 struct wpa_supplicant *wpa_s = ctx;
1821 for (s = wpa_s->conf->ssid; s; s = s->next) {
1822 if (s->disabled == 2 &&
1823 s->ssid_len == ssid_len &&
1824 os_memcmp(ssid, s->ssid, ssid_len) == 0)
1828 if (status == P2P_SC_SUCCESS) {
1829 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
1830 " was accepted; op_freq=%d MHz",
1831 MAC2STR(sa), op_freq);
1833 wpas_p2p_group_add_persistent(
1834 wpa_s, s, s->mode == WPAS_MODE_P2P_GO, 0);
1836 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
1837 wpa_s->p2p_wps_method);
1842 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
1843 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
1844 " was rejected (status %u)", MAC2STR(sa), status);
1850 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
1851 "sa=" MACSTR " go_dev_addr=" MACSTR
1852 " bssid=" MACSTR " unknown-network",
1853 MAC2STR(sa), MAC2STR(go_dev_addr),
1856 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
1857 "sa=" MACSTR " go_dev_addr=" MACSTR
1859 MAC2STR(sa), MAC2STR(go_dev_addr));
1864 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED "sa=" MACSTR
1865 " persistent=%d", MAC2STR(sa), s->id);
1869 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid)
1871 struct wpa_supplicant *wpa_s = ctx;
1872 struct wpa_ssid *ssid;
1875 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
1876 "status=%d " MACSTR,
1877 status, MAC2STR(bssid));
1879 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
1880 "status=%d ", status);
1883 if (wpa_s->pending_invite_ssid_id == -1)
1884 return; /* Invitation to active group */
1886 if (status != P2P_SC_SUCCESS) {
1887 wpas_p2p_remove_pending_group_interface(wpa_s);
1891 ssid = wpa_config_get_network(wpa_s->conf,
1892 wpa_s->pending_invite_ssid_id);
1894 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
1895 "data matching with invitation");
1899 wpas_p2p_group_add_persistent(wpa_s, ssid,
1900 ssid->mode == WPAS_MODE_P2P_GO, 0);
1904 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
1905 struct p2p_config *p2p)
1907 struct hostapd_hw_modes *modes;
1908 u16 num_modes, flags;
1910 int band24 = 0, band5_low = 0, band5_high = 0;
1912 /* TODO: more detailed selection of channels within reg_class based on
1913 * driver capabilities */
1915 modes = wpa_drv_get_hw_feature_data(wpa_s, &num_modes, &flags);
1916 if (modes == NULL) {
1917 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
1918 "of all supported channels; assume dualband "
1920 band24 = band5_low = band5_high = 1;
1922 for (i = 0; i < num_modes; i++) {
1923 struct hostapd_hw_modes *mode;
1925 if (mode->mode == HOSTAPD_MODE_IEEE80211G) {
1927 } else if (mode->mode == HOSTAPD_MODE_IEEE80211A) {
1929 for (j = 0; j < mode->num_channels; j++) {
1930 struct hostapd_channel_data *ch;
1931 ch = &mode->channels[j];
1934 else if (ch->chan == 157)
1944 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for "
1947 /* Operating class 81 - 2.4 GHz band channels 1..13 */
1948 p2p->channels.reg_class[cla].reg_class = 81;
1950 p2p->channels.reg_class[cla].channels = 13;
1951 for (i = 0; i < 13; i++)
1952 p2p->channels.reg_class[cla].channel[i] = i + 1;
1954 p2p->channels.reg_class[cla].channels = 11;
1955 for (i = 0; i < 11; i++)
1956 p2p->channels.reg_class[cla].channel[i] = i + 1;
1961 /* Operating class 82 - 2.4 GHz band channel 14 */
1962 p2p->channels.reg_class[cla].reg_class = 82;
1963 p2p->channels.reg_class[cla].channels = 1;
1964 p2p->channels.reg_class[cla].channel[0] = 14;
1969 /* Operating class 83 - 2.4 GHz band channels 1..9; 40 MHz */
1970 p2p->channels.reg_class[cla].reg_class = 83;
1971 p2p->channels.reg_class[cla].channels = 9;
1972 for (i = 0; i < 9; i++)
1973 p2p->channels.reg_class[cla].channel[i] = i + 1;
1976 /* Operating class 84 - 2.4 GHz band channels 5..13; 40 MHz */
1977 p2p->channels.reg_class[cla].reg_class = 84;
1978 p2p->channels.reg_class[cla].channels = 9;
1979 for (i = 0; i < 9; i++)
1980 p2p->channels.reg_class[cla].channel[i] = i + 5;
1986 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for "
1987 "lower 5 GHz band");
1989 /* Operating class 115 - 5 GHz, channels 36-48 */
1990 p2p->channels.reg_class[cla].reg_class = 115;
1991 p2p->channels.reg_class[cla].channels = 4;
1992 p2p->channels.reg_class[cla].channel[0] = 36;
1993 p2p->channels.reg_class[cla].channel[1] = 40;
1994 p2p->channels.reg_class[cla].channel[2] = 44;
1995 p2p->channels.reg_class[cla].channel[3] = 48;
1999 /* Operating class 116 - 5 GHz, channels 36,44; 40 MHz */
2000 p2p->channels.reg_class[cla].reg_class = 116;
2001 p2p->channels.reg_class[cla].channels = 2;
2002 p2p->channels.reg_class[cla].channel[0] = 36;
2003 p2p->channels.reg_class[cla].channel[1] = 44;
2006 /* Operating class 117 - 5 GHz, channels 40,48; 40 MHz */
2007 p2p->channels.reg_class[cla].reg_class = 117;
2008 p2p->channels.reg_class[cla].channels = 2;
2009 p2p->channels.reg_class[cla].channel[0] = 40;
2010 p2p->channels.reg_class[cla].channel[1] = 48;
2016 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for "
2017 "higher 5 GHz band");
2019 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
2020 p2p->channels.reg_class[cla].reg_class = 124;
2021 p2p->channels.reg_class[cla].channels = 4;
2022 p2p->channels.reg_class[cla].channel[0] = 149;
2023 p2p->channels.reg_class[cla].channel[1] = 153;
2024 p2p->channels.reg_class[cla].channel[2] = 157;
2025 p2p->channels.reg_class[cla].channel[3] = 161;
2029 /* Operating class 126 - 5 GHz, channels 149,157; 40 MHz */
2030 p2p->channels.reg_class[cla].reg_class = 126;
2031 p2p->channels.reg_class[cla].channels = 2;
2032 p2p->channels.reg_class[cla].channel[0] = 149;
2033 p2p->channels.reg_class[cla].channel[1] = 157;
2036 /* Operating class 127 - 5 GHz, channels 153,161; 40 MHz */
2037 p2p->channels.reg_class[cla].reg_class = 127;
2038 p2p->channels.reg_class[cla].channels = 2;
2039 p2p->channels.reg_class[cla].channel[0] = 153;
2040 p2p->channels.reg_class[cla].channel[1] = 161;
2045 p2p->channels.reg_classes = cla;
2048 ieee80211_sta_free_hw_features(modes, num_modes);
2054 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
2057 struct wpa_supplicant *wpa_s = ctx;
2059 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2060 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
2066 return wpa_drv_get_noa(wpa_s, buf, buf_len);
2071 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
2072 * @global: Pointer to global data from wpa_supplicant_init()
2073 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2074 * Returns: 0 on success, -1 on failure
2076 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
2078 struct p2p_config p2p;
2082 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
2085 #ifdef CONFIG_CLIENT_MLME
2086 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)) {
2087 wpa_s->mlme.public_action_cb = p2p_rx_action_mlme;
2088 wpa_s->mlme.public_action_cb_ctx = wpa_s;
2090 #endif /* CONFIG_CLIENT_MLME */
2092 if (wpa_drv_disable_11b_rates(wpa_s, 1) < 0) {
2093 wpa_printf(MSG_DEBUG, "P2P: Failed to disable 11b rates");
2094 /* Continue anyway; this is not really a fatal error */
2100 os_memset(&p2p, 0, sizeof(p2p));
2101 p2p.msg_ctx = wpa_s;
2103 p2p.p2p_scan = wpas_p2p_scan;
2104 p2p.send_action = wpas_send_action;
2105 p2p.send_action_done = wpas_send_action_done;
2106 p2p.go_neg_completed = wpas_go_neg_completed;
2107 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
2108 p2p.dev_found = wpas_dev_found;
2109 p2p.start_listen = wpas_start_listen;
2110 p2p.stop_listen = wpas_stop_listen;
2111 p2p.send_probe_resp = wpas_send_probe_resp;
2112 p2p.sd_request = wpas_sd_request;
2113 p2p.sd_response = wpas_sd_response;
2114 p2p.prov_disc_req = wpas_prov_disc_req;
2115 p2p.prov_disc_resp = wpas_prov_disc_resp;
2116 p2p.invitation_process = wpas_invitation_process;
2117 p2p.invitation_received = wpas_invitation_received;
2118 p2p.invitation_result = wpas_invitation_result;
2119 p2p.get_noa = wpas_get_noa;
2121 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
2122 os_memcpy(p2p.dev_addr, wpa_s->own_addr, ETH_ALEN);
2123 p2p.dev_name = wpa_s->conf->device_name;
2125 if (wpa_s->conf->p2p_listen_reg_class &&
2126 wpa_s->conf->p2p_listen_channel) {
2127 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
2128 p2p.channel = wpa_s->conf->p2p_listen_channel;
2132 * Pick one of the social channels randomly as the listen
2135 os_get_random((u8 *) &r, sizeof(r));
2136 p2p.channel = 1 + (r % 3) * 5;
2139 if (wpa_s->conf->p2p_oper_reg_class &&
2140 wpa_s->conf->p2p_oper_channel) {
2141 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
2142 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
2144 p2p.op_reg_class = 81;
2146 * For initial tests, pick the operation channel randomly.
2147 * TODO: Use scan results (etc.) to select the best channel.
2149 p2p.op_channel = 1 + r % 11;
2151 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d "
2152 "Own preferred operation channel: %d",
2153 p2p.channel, p2p.op_channel);
2154 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
2155 os_memcpy(p2p.country, wpa_s->conf->country, 2);
2156 p2p.country[2] = 0x04;
2158 os_memcpy(p2p.country, "US\x04", 3);
2160 if (wpas_p2p_setup_channels(wpa_s, &p2p)) {
2161 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
2166 if (wpa_s->conf->device_type &&
2167 wps_dev_type_str2bin(wpa_s->conf->device_type, p2p.pri_dev_type) <
2169 wpa_printf(MSG_ERROR, "P2P: Invalid device_type");
2173 for (i = 0; i < MAX_SEC_DEVICE_TYPES; i++) {
2174 if (wpa_s->conf->sec_device_type[i] == NULL)
2176 if (wps_dev_type_str2bin(
2177 wpa_s->conf->sec_device_type[i],
2178 p2p.sec_dev_type[p2p.num_sec_dev_types]) < 0) {
2179 wpa_printf(MSG_ERROR, "P2P: Invalid sec_device_type");
2182 p2p.num_sec_dev_types++;
2183 if (p2p.num_sec_dev_types == P2P_SEC_DEVICE_TYPES)
2187 p2p.concurrent_operations = !!(wpa_s->drv_flags &
2188 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
2190 p2p.max_peers = wpa_s->max_stations ? wpa_s->max_stations : 100;
2192 if (wpa_s->conf->p2p_ssid_postfix) {
2193 p2p.ssid_postfix_len =
2194 os_strlen(wpa_s->conf->p2p_ssid_postfix);
2195 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
2196 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
2197 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
2198 p2p.ssid_postfix_len);
2201 global->p2p = p2p_init(&p2p);
2202 if (global->p2p == NULL)
2210 * wpas_p2p_deinit - Deinitialize per-interface P2P data
2211 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2213 * This function deinitialize per-interface P2P data.
2215 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
2217 if (wpa_s->driver && wpa_s->drv_priv)
2218 wpa_drv_probe_req_report(wpa_s, 0);
2219 os_free(wpa_s->go_params);
2220 wpa_s->go_params = NULL;
2221 wpabuf_free(wpa_s->pending_action_tx);
2222 wpa_s->pending_action_tx = NULL;
2223 eloop_cancel_timeout(wpas_send_action_cb, wpa_s, NULL);
2224 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2225 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2226 wpa_s->p2p_long_listen = 0;
2227 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2228 wpas_p2p_remove_pending_group_interface(wpa_s);
2230 /* TODO: remove group interface from the driver if this wpa_s instance
2231 * is on top of a P2P group interface */
2236 * wpas_p2p_deinit_global - Deinitialize global P2P module
2237 * @global: Pointer to global data from wpa_supplicant_init()
2239 * This function deinitializes the global (per device) P2P module.
2241 void wpas_p2p_deinit_global(struct wpa_global *global)
2243 struct wpa_supplicant *wpa_s, *tmp;
2246 if (global->p2p == NULL)
2249 /* Remove remaining P2P group interfaces */
2250 wpa_s = global->ifaces;
2252 wpas_p2p_service_flush(wpa_s);
2253 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
2254 wpa_s = wpa_s->next;
2256 enum wpa_driver_if_type type;
2257 tmp = global->ifaces;
2260 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
2265 ifname = os_strdup(tmp->ifname);
2266 type = wpas_p2p_if_type(tmp->p2p_group_interface);
2267 wpa_supplicant_remove_iface(global, tmp);
2269 wpa_drv_if_remove(wpa_s, type, ifname);
2274 * Deinit GO data on any possibly remaining interface (if main
2275 * interface is used as GO).
2277 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2278 if (wpa_s->ap_iface)
2279 wpas_p2p_group_deinit(wpa_s);
2282 p2p_deinit(global->p2p);
2287 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
2289 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
2290 return 1; /* P2P group requires a new interface in every case
2292 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
2293 return 0; /* driver does not support concurrent operations */
2294 if (wpa_s->global->ifaces->next)
2295 return 1; /* more that one interface already in use */
2296 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2297 return 1; /* this interface is already in use */
2302 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
2303 const u8 *peer_addr,
2304 enum p2p_wps_method wps_method,
2305 int go_intent, const u8 *own_interface_addr,
2306 unsigned int force_freq, int persistent_group)
2308 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
2309 go_intent, own_interface_addr, force_freq,
2314 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
2315 const u8 *peer_addr,
2316 enum p2p_wps_method wps_method,
2317 int go_intent, const u8 *own_interface_addr,
2318 unsigned int force_freq, int persistent_group)
2320 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
2321 go_intent, own_interface_addr, force_freq,
2326 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
2327 struct wpa_scan_results *scan_res)
2329 struct wpa_bss *bss;
2332 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2334 if (wpa_s->global->p2p_disabled)
2337 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for join",
2338 scan_res ? (int) scan_res->num : -1);
2341 wpas_p2p_scan_res_handler(wpa_s, scan_res);
2343 freq = p2p_get_oper_freq(wpa_s->global->p2p,
2344 wpa_s->pending_join_iface_addr);
2346 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2347 "from P2P peer table: %d MHz", freq);
2349 bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
2352 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2353 "from BSS table: %d MHz", freq);
2358 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
2359 "prior to joining an existing group (GO " MACSTR
2361 MAC2STR(wpa_s->pending_join_dev_addr), freq);
2362 wpa_s->pending_pd_before_join = 1;
2364 switch (wpa_s->pending_join_wps_method) {
2366 case WPS_PIN_DISPLAY:
2367 method = WPS_CONFIG_KEYPAD;
2369 case WPS_PIN_KEYPAD:
2370 method = WPS_CONFIG_DISPLAY;
2373 method = WPS_CONFIG_PUSHBUTTON;
2380 if (p2p_prov_disc_req(wpa_s->global->p2p,
2381 wpa_s->pending_join_dev_addr, method, 1)
2383 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
2384 "Discovery Request before joining an "
2386 wpa_s->pending_pd_before_join = 0;
2391 * Actual join operation will be started from the Action frame
2392 * TX status callback.
2397 wpa_printf(MSG_DEBUG, "P2P: Target BSS/GO not yet in BSS table - "
2398 "cannot send Provision Discovery Request");
2401 /* Start join operation immediately */
2402 wpas_p2p_join_start(wpa_s);
2406 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
2408 struct wpa_supplicant *wpa_s = eloop_ctx;
2410 struct wpa_driver_scan_params params;
2411 struct wpabuf *wps_ie, *ies;
2413 os_memset(¶ms, 0, sizeof(params));
2415 /* P2P Wildcard SSID */
2416 params.num_ssids = 1;
2417 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
2418 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
2420 wpa_s->wps->dev.p2p = 1;
2421 wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid,
2423 if (wps_ie == NULL) {
2424 wpas_p2p_scan_res_join(wpa_s, NULL);
2428 ies = wpabuf_alloc(wpabuf_len(wps_ie) + 100);
2430 wpabuf_free(wps_ie);
2431 wpas_p2p_scan_res_join(wpa_s, NULL);
2434 wpabuf_put_buf(ies, wps_ie);
2435 wpabuf_free(wps_ie);
2437 p2p_scan_ie(wpa_s->global->p2p, ies);
2439 params.extra_ies = wpabuf_head(ies);
2440 params.extra_ies_len = wpabuf_len(ies);
2443 * Run a scan to update BSS table and start Provision Discovery once
2444 * the new scan results become available.
2446 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
2447 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
2448 ret = ieee80211_sta_req_scan(wpa_s, ¶ms);
2450 ret = wpa_drv_scan(wpa_s, ¶ms);
2455 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
2457 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2458 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
2463 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
2464 const u8 *dev_addr, enum p2p_wps_method wps_method)
2466 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
2467 MACSTR " dev " MACSTR ")",
2468 MAC2STR(iface_addr), MAC2STR(dev_addr));
2470 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
2471 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
2472 wpa_s->pending_join_wps_method = wps_method;
2474 /* Make sure we are not running find during connection establishment */
2475 wpas_p2p_stop_find(wpa_s);
2477 wpas_p2p_join_scan(wpa_s, NULL);
2482 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
2484 struct wpa_supplicant *group;
2485 struct p2p_go_neg_results res;
2487 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
2490 if (group != wpa_s) {
2491 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
2492 sizeof(group->p2p_pin));
2493 group->p2p_wps_method = wpa_s->p2p_wps_method;
2496 group->p2p_in_provisioning = 1;
2498 os_memset(&res, 0, sizeof(res));
2499 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
2501 res.wps_method = wpa_s->pending_join_wps_method;
2502 wpas_start_wps_enrollee(group, &res);
2509 * wpas_p2p_connect - Request P2P Group Formation to be started
2510 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2511 * @peer_addr: Address of the peer P2P Device
2512 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
2513 * @persistent_group: Whether to create a persistent group
2514 * @join: Whether to join an existing group (as a client) instead of starting
2515 * Group Owner negotiation; @peer_addr is BSSID in that case
2516 * @auth: Whether to only authorize the connection instead of doing that and
2517 * initiating Group Owner negotiation
2518 * @go_intent: GO Intent or -1 to use default
2519 * @freq: Frequency for the group or 0 for auto-selection
2520 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on failure
2522 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
2523 const char *pin, enum p2p_wps_method wps_method,
2524 int persistent_group, int join, int auth, int go_intent,
2530 enum wpa_driver_if_type iftype;
2533 go_intent = wpa_s->conf->p2p_go_intent;
2536 wpa_s->p2p_long_listen = 0;
2538 wpa_s->p2p_wps_method = wps_method;
2541 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
2542 else if (wps_method == WPS_PIN_DISPLAY) {
2543 ret = wps_generate_pin();
2544 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
2546 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
2549 wpa_s->p2p_pin[0] = '\0';
2552 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
2554 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
2555 "connect a running group from " MACSTR,
2556 MAC2STR(peer_addr));
2557 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
2560 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
2561 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
2563 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
2564 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
2567 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method) <
2575 else if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
2577 force_freq = wpa_s->assoc_freq;
2579 force_freq = wpa_drv_shared_freq(wpa_s);
2584 if (force_freq > 0) {
2585 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
2586 "channel we are already using (%u MHz) on another "
2587 "interface", force_freq);
2590 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
2592 if (!wpa_s->create_p2p_iface) {
2594 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
2595 go_intent, wpa_s->own_addr,
2596 force_freq, persistent_group)
2601 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
2602 go_intent, wpa_s->own_addr,
2603 force_freq, persistent_group) < 0)
2608 /* Prepare to add a new interface for the group */
2609 iftype = WPA_IF_P2P_GROUP;
2611 iftype = WPA_IF_P2P_CLIENT;
2612 else if (go_intent == 15)
2613 iftype = WPA_IF_P2P_GO;
2614 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
2615 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2616 "interface for the group");
2621 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
2623 wpa_s->pending_interface_addr,
2624 force_freq, persistent_group) < 0)
2628 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method, go_intent,
2629 wpa_s->pending_interface_addr,
2630 force_freq, persistent_group) < 0) {
2631 wpas_p2p_remove_pending_group_interface(wpa_s);
2639 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
2640 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2641 * @freq: Frequency of the channel in MHz
2642 * @duration: Duration of the stay on the channel in milliseconds
2644 * This callback is called when the driver indicates that it has started the
2645 * requested remain-on-channel duration.
2647 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
2648 unsigned int freq, unsigned int duration)
2650 wpa_s->roc_waiting_drv_freq = 0;
2651 wpa_s->off_channel_freq = freq;
2652 wpas_send_action_cb(wpa_s, NULL);
2653 if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
2654 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
2655 wpa_s->pending_listen_duration);
2656 wpa_s->pending_listen_freq = 0;
2661 static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
2662 unsigned int timeout)
2664 /* Limit maximum Listen state time based on driver limitation. */
2665 if (timeout > wpa_s->max_remain_on_chan)
2666 timeout = wpa_s->max_remain_on_chan;
2668 return p2p_listen(wpa_s->global->p2p, timeout);
2673 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
2674 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2675 * @freq: Frequency of the channel in MHz
2677 * This callback is called when the driver indicates that a remain-on-channel
2678 * operation has been completed, i.e., the duration on the requested channel
2681 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
2684 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
2685 "(p2p_long_listen=%d pending_action_tx=%p)",
2686 wpa_s->p2p_long_listen, wpa_s->pending_action_tx);
2687 wpa_s->off_channel_freq = 0;
2688 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
2689 return; /* P2P module started a new operation */
2690 if (wpa_s->pending_action_tx)
2692 if (wpa_s->p2p_long_listen > 0)
2693 wpa_s->p2p_long_listen -= 5;
2694 if (wpa_s->p2p_long_listen > 0) {
2695 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
2696 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen * 1000);
2702 * wpas_p2p_group_remove - Remove a P2P group
2703 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2704 * @ifname: Network interface name of the group interface or "*" to remove all
2706 * Returns: 0 on success, -1 on failure
2708 * This function is used to remove a P2P group. This can be used to disconnect
2709 * from a group in which the local end is a P2P Client or to end a P2P Group in
2710 * case the local end is the Group Owner. If a virtual network interface was
2711 * created for this group, that interface will be removed. Otherwise, only the
2712 * configured P2P group network will be removed from the interface.
2714 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
2716 struct wpa_global *global = wpa_s->global;
2718 if (os_strcmp(ifname, "*") == 0) {
2719 struct wpa_supplicant *prev;
2720 wpa_s = global->ifaces;
2723 wpa_s = wpa_s->next;
2724 wpas_p2p_group_delete(prev);
2729 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2730 if (os_strcmp(wpa_s->ifname, ifname) == 0)
2737 wpas_p2p_group_delete(wpa_s);
2743 static void wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
2744 struct p2p_go_neg_results *params,
2750 os_memset(params, 0, sizeof(*params));
2751 params->role_go = 1;
2752 params->freq = 2412;
2754 params->freq = freq;
2755 else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
2756 wpa_s->conf->p2p_oper_channel >= 1 &&
2757 wpa_s->conf->p2p_oper_channel <= 11)
2758 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
2759 else if (wpa_s->conf->p2p_oper_reg_class == 115 ||
2760 wpa_s->conf->p2p_oper_reg_class == 118)
2761 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
2762 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
2763 wpa_s->assoc_freq && !freq) {
2764 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
2766 params->freq = wpa_s->assoc_freq;
2769 res = wpa_drv_shared_freq(wpa_s);
2770 if (res > 0 && !freq) {
2771 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
2772 "already using on a shared interface");
2778 static struct wpa_supplicant *
2779 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
2782 struct wpa_supplicant *group_wpa_s;
2784 if (!wpas_p2p_create_iface(wpa_s))
2787 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
2788 WPA_IF_P2P_CLIENT) < 0)
2790 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
2791 if (group_wpa_s == NULL) {
2792 wpas_p2p_remove_pending_group_interface(wpa_s);
2801 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
2802 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2803 * @persistent_group: Whether to create a persistent group
2804 * @freq: Frequency for the group or 0 to indicate no hardcoding
2805 * Returns: 0 on success, -1 on failure
2807 * This function creates a new P2P group with the local end as the Group Owner,
2808 * i.e., without using Group Owner Negotiation.
2810 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
2813 struct p2p_go_neg_results params;
2815 wpas_p2p_init_go_params(wpa_s, ¶ms, freq);
2816 p2p_go_params(wpa_s->global->p2p, ¶ms);
2817 params.persistent_group = persistent_group;
2819 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
2822 wpas_start_wps_go(wpa_s, ¶ms, 0);
2828 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
2829 struct wpa_ssid *params, int addr_allocated)
2831 struct wpa_ssid *ssid;
2833 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
2837 wpa_supplicant_ap_deinit(wpa_s);
2839 ssid = wpa_config_add_network(wpa_s->conf);
2842 wpas_notify_network_added(wpa_s, ssid);
2843 wpa_config_set_network_defaults(ssid);
2844 ssid->temporary = 1;
2845 ssid->proto = WPA_PROTO_RSN;
2846 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
2847 ssid->group_cipher = WPA_CIPHER_CCMP;
2848 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
2849 ssid->ssid = os_malloc(params->ssid_len);
2850 if (ssid->ssid == NULL) {
2851 wpas_notify_network_removed(wpa_s, ssid);
2852 wpa_config_remove_network(wpa_s->conf, ssid->id);
2855 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
2856 ssid->ssid_len = params->ssid_len;
2857 ssid->p2p_group = 1;
2858 if (params->psk_set) {
2859 os_memcpy(ssid->psk, params->psk, 32);
2862 if (params->passphrase)
2863 ssid->passphrase = os_strdup(params->passphrase);
2865 wpa_supplicant_select_network(wpa_s, ssid);
2867 wpa_s->show_group_started = 1;
2873 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
2874 struct wpa_ssid *ssid, int addr_allocated,
2877 struct p2p_go_neg_results params;
2879 if (ssid->disabled != 2 || ssid->ssid == NULL)
2882 wpa_s->p2p_long_listen = 0;
2883 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2885 if (ssid->mode == WPAS_MODE_INFRA)
2886 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
2888 if (ssid->mode != WPAS_MODE_P2P_GO)
2891 wpas_p2p_init_go_params(wpa_s, ¶ms, freq);
2894 if (ssid->passphrase == NULL ||
2895 os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
2896 wpa_printf(MSG_DEBUG, "P2P: Invalid passphrase in persistent "
2900 os_strlcpy(params.passphrase, ssid->passphrase,
2901 sizeof(params.passphrase));
2902 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
2903 params.ssid_len = ssid->ssid_len;
2904 params.persistent_group = 1;
2906 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
2910 wpas_start_wps_go(wpa_s, ¶ms, 0);
2916 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
2917 struct wpabuf *proberesp_ies)
2919 struct wpa_supplicant *wpa_s = ctx;
2920 if (wpa_s->ap_iface) {
2921 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
2923 wpabuf_free(hapd->p2p_beacon_ie);
2924 hapd->p2p_beacon_ie = beacon_ies;
2926 wpabuf_free(hapd->p2p_probe_resp_ie);
2927 hapd->p2p_probe_resp_ie = proberesp_ies;
2929 wpabuf_free(beacon_ies);
2930 wpabuf_free(proberesp_ies);
2932 wpa_supplicant_ap_update_beacon(wpa_s);
2936 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
2937 int persistent_group,
2938 int group_formation)
2940 struct p2p_group *group;
2941 struct p2p_group_config *cfg;
2943 cfg = os_zalloc(sizeof(*cfg));
2947 cfg->persistent_group = persistent_group;
2948 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
2949 cfg->cb_ctx = wpa_s;
2950 cfg->ie_update = wpas_p2p_ie_update;
2952 group = p2p_group_init(wpa_s->global->p2p, cfg);
2955 if (!group_formation)
2956 p2p_group_notif_formation_done(group);
2957 wpa_s->p2p_group = group;
2962 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
2965 if (!wpa_s->p2p_in_provisioning) {
2966 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
2967 "provisioning not in progress");
2971 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
2973 if (wpa_s->global->p2p)
2974 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
2975 wpas_group_formation_completed(wpa_s, 1);
2979 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
2980 const char *config_method)
2984 if (os_strcmp(config_method, "display") == 0)
2985 config_methods = WPS_CONFIG_DISPLAY;
2986 else if (os_strcmp(config_method, "keypad") == 0)
2987 config_methods = WPS_CONFIG_KEYPAD;
2988 else if (os_strcmp(config_method, "pbc") == 0 ||
2989 os_strcmp(config_method, "pushbutton") == 0)
2990 config_methods = WPS_CONFIG_PUSHBUTTON;
2994 if (wpa_s->global->p2p == NULL)
2997 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
3002 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
3005 return p2p_scan_result_text(ies, ies_len, buf, end);
3009 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
3011 if (!wpa_s->pending_action_tx)
3014 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
3015 "operation request");
3016 wpabuf_free(wpa_s->pending_action_tx);
3017 wpa_s->pending_action_tx = NULL;
3021 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
3022 enum p2p_discovery_type type)
3024 wpas_p2p_clear_pending_action_tx(wpa_s);
3025 wpa_s->p2p_long_listen = 0;
3027 return p2p_find(wpa_s->global->p2p, timeout, type);
3031 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
3033 wpas_p2p_clear_pending_action_tx(wpa_s);
3034 wpa_s->p2p_long_listen = 0;
3035 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3037 p2p_stop_find(wpa_s->global->p2p);
3039 wpas_p2p_remove_pending_group_interface(wpa_s);
3043 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
3045 struct wpa_supplicant *wpa_s = eloop_ctx;
3046 wpa_s->p2p_long_listen = 0;
3050 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
3054 wpas_p2p_clear_pending_action_tx(wpa_s);
3058 * This is a request for unlimited Listen state. However, at
3059 * least for now, this is mapped to a Listen state for one
3064 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3065 wpa_s->p2p_long_listen = 0;
3067 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
3068 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
3069 wpa_s->p2p_long_listen = timeout;
3070 eloop_register_timeout(timeout, 0,
3071 wpas_p2p_long_listen_timeout,
3079 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
3080 u8 *buf, size_t len, int p2p_group)
3082 struct wpabuf *p2p_ie;
3085 if (wpa_s->global->p2p_disabled)
3087 if (wpa_s->global->p2p == NULL)
3092 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
3093 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
3095 wpabuf_free(p2p_ie);
3101 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
3102 const u8 *ie, size_t ie_len)
3104 if (wpa_s->global->p2p_disabled)
3106 if (wpa_s->global->p2p == NULL)
3109 return p2p_probe_req_rx(wpa_s->global->p2p, addr, ie, ie_len);
3113 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
3114 const u8 *sa, const u8 *bssid,
3115 u8 category, const u8 *data, size_t len, int freq)
3117 if (wpa_s->global->p2p_disabled)
3119 if (wpa_s->global->p2p == NULL)
3122 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
3127 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
3129 if (wpa_s->global->p2p_disabled)
3131 if (wpa_s->global->p2p == NULL)
3134 p2p_scan_ie(wpa_s->global->p2p, ies);
3138 void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
3140 p2p_group_deinit(wpa_s->p2p_group);
3141 wpa_s->p2p_group = NULL;
3145 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
3147 wpa_s->p2p_long_listen = 0;
3149 return p2p_reject(wpa_s->global->p2p, addr);
3153 /* Invite to reinvoke a persistent group */
3154 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3155 struct wpa_ssid *ssid, const u8 *go_dev_addr)
3157 enum p2p_invite_role role;
3160 if (ssid->mode == WPAS_MODE_P2P_GO) {
3161 role = P2P_INVITE_ROLE_GO;
3162 if (peer_addr == NULL) {
3163 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
3164 "address in invitation command");
3167 if (wpas_p2p_create_iface(wpa_s)) {
3168 if (wpas_p2p_add_group_interface(wpa_s,
3169 WPA_IF_P2P_GO) < 0) {
3170 wpa_printf(MSG_ERROR, "P2P: Failed to "
3171 "allocate a new interface for the "
3175 bssid = wpa_s->pending_interface_addr;
3177 bssid = wpa_s->own_addr;
3179 role = P2P_INVITE_ROLE_CLIENT;
3180 peer_addr = ssid->bssid;
3182 wpa_s->pending_invite_ssid_id = ssid->id;
3184 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
3185 ssid->ssid, ssid->ssid_len, 0, go_dev_addr, 1);
3189 /* Invite to join an active group */
3190 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
3191 const u8 *peer_addr, const u8 *go_dev_addr)
3193 struct wpa_global *global = wpa_s->global;
3194 enum p2p_invite_role role;
3196 struct wpa_ssid *ssid;
3198 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3199 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3202 if (wpa_s == NULL) {
3203 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
3207 ssid = wpa_s->current_ssid;
3209 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
3214 if (ssid->mode == WPAS_MODE_P2P_GO) {
3215 role = P2P_INVITE_ROLE_ACTIVE_GO;
3216 bssid = wpa_s->own_addr;
3217 if (go_dev_addr == NULL)
3218 go_dev_addr = wpa_s->parent->own_addr;
3220 role = P2P_INVITE_ROLE_CLIENT;
3221 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
3222 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
3223 "invite to current group");
3226 bssid = wpa_s->bssid;
3227 if (go_dev_addr == NULL &&
3228 !is_zero_ether_addr(wpa_s->go_dev_addr))
3229 go_dev_addr = wpa_s->go_dev_addr;
3231 wpa_s->pending_invite_ssid_id = -1;
3233 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
3234 ssid->ssid, ssid->ssid_len, wpa_s->assoc_freq,
3239 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
3241 struct wpa_ssid *ssid = wpa_s->current_ssid;
3242 const char *ssid_txt;
3243 u8 go_dev_addr[ETH_ALEN];
3246 if (!wpa_s->show_group_started || !ssid)
3249 wpa_s->show_group_started = 0;
3251 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
3252 os_memset(go_dev_addr, 0, ETH_ALEN);
3253 if (ssid->bssid_set)
3254 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
3255 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
3257 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
3259 if (ssid->passphrase == NULL && ssid->psk_set) {
3261 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
3262 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
3263 "%s client ssid=\"%s\" psk=%s go_dev_addr=" MACSTR
3265 wpa_s->ifname, ssid_txt, psk, MAC2STR(go_dev_addr),
3266 persistent ? " [PERSISTENT]" : "");
3268 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
3269 "%s client ssid=\"%s\" passphrase=\"%s\" go_dev_addr="
3271 wpa_s->ifname, ssid_txt,
3272 ssid->passphrase ? ssid->passphrase : "",
3273 MAC2STR(go_dev_addr),
3274 persistent ? " [PERSISTENT]" : "");
3278 wpas_p2p_store_persistent_group(wpa_s->parent, ssid,
3283 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
3284 u32 interval1, u32 duration2, u32 interval2)
3286 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
3287 wpa_s->current_ssid == NULL ||
3288 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
3291 return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
3292 wpa_s->own_addr, wpa_s->assoc_freq,
3293 duration1, interval1, duration2, interval2);
3297 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
3298 unsigned int interval)
3300 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
3304 void wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3305 u16 reason_code, const u8 *ie, size_t ie_len)
3307 if (wpa_s->global->p2p_disabled)
3310 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
3314 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3315 u16 reason_code, const u8 *ie, size_t ie_len)
3317 if (wpa_s->global->p2p_disabled)
3320 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
3324 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
3326 struct p2p_data *p2p = wpa_s->global->p2p;
3331 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
3332 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
3334 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE) {
3336 if (wpa_s->conf->device_type) {
3337 if (wps_dev_type_str2bin(wpa_s->conf->device_type,
3338 pri_dev_type) < 0) {
3339 wpa_printf(MSG_ERROR, "P2P: Invalid "
3342 p2p_set_pri_dev_type(p2p, pri_dev_type);
3346 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
3347 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8];
3350 for (i = 0; i < MAX_SEC_DEVICE_TYPES; i++) {
3351 if (wpa_s->conf->sec_device_type[i] == NULL)
3353 if (wps_dev_type_str2bin(
3354 wpa_s->conf->sec_device_type[i],
3355 sec_dev_type[num]) < 0) {
3356 wpa_printf(MSG_ERROR, "P2P: Invalid "
3361 if (num == P2P_SEC_DEVICE_TYPES)
3364 p2p_set_sec_dev_types(p2p, (void *) sec_dev_type, num);
3367 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
3368 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
3370 country[0] = wpa_s->conf->country[0];
3371 country[1] = wpa_s->conf->country[1];
3373 p2p_set_country(p2p, country);
3376 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
3377 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
3378 wpa_s->conf->p2p_ssid_postfix ?
3379 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
3385 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
3388 if (!wpa_s->ap_iface)
3390 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
3395 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
3397 if (wpa_s->global->p2p_disabled)
3399 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3402 wpa_s->global->cross_connection = enabled;
3403 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
3406 struct wpa_supplicant *iface;
3408 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
3410 if (iface->cross_connect_enabled == 0)
3413 iface->cross_connect_enabled = 0;
3414 iface->cross_connect_in_use = 0;
3415 wpa_msg(iface->parent, MSG_INFO,
3416 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
3417 iface->ifname, iface->cross_connect_uplink);
3425 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
3427 struct wpa_supplicant *iface;
3429 if (!uplink->global->cross_connection)
3432 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
3433 if (!iface->cross_connect_enabled)
3435 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
3438 if (iface->ap_iface == NULL)
3440 if (iface->cross_connect_in_use)
3443 iface->cross_connect_in_use = 1;
3444 wpa_msg(iface->parent, MSG_INFO,
3445 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
3446 iface->ifname, iface->cross_connect_uplink);
3451 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
3453 struct wpa_supplicant *iface;
3455 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
3456 if (!iface->cross_connect_enabled)
3458 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
3461 if (!iface->cross_connect_in_use)
3464 wpa_msg(iface->parent, MSG_INFO,
3465 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
3466 iface->ifname, iface->cross_connect_uplink);
3467 iface->cross_connect_in_use = 0;
3472 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
3474 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
3475 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
3476 wpa_s->cross_connect_disallowed)
3477 wpas_p2p_disable_cross_connect(wpa_s);
3479 wpas_p2p_enable_cross_connect(wpa_s);
3483 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
3485 wpas_p2p_disable_cross_connect(wpa_s);
3489 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
3491 struct wpa_supplicant *iface;
3493 if (!wpa_s->global->cross_connection)
3496 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
3499 if (iface->drv_flags &
3500 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
3502 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
3505 wpa_s->cross_connect_enabled = 1;
3506 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
3507 sizeof(wpa_s->cross_connect_uplink));
3508 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
3509 "%s to %s whenever uplink is available",
3510 wpa_s->ifname, wpa_s->cross_connect_uplink);
3512 if (iface->ap_iface || iface->current_ssid == NULL ||
3513 iface->current_ssid->mode != WPAS_MODE_INFRA ||
3514 iface->cross_connect_disallowed ||
3515 iface->wpa_state != WPA_COMPLETED)
3518 wpa_s->cross_connect_in_use = 1;
3519 wpa_msg(wpa_s->parent, MSG_INFO,
3520 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
3521 wpa_s->ifname, wpa_s->cross_connect_uplink);