X-Git-Url: http://www.project-moonshot.org/gitweb/?a=blobdiff_plain;f=libeap%2Fwpa_supplicant%2Fp2p_supplicant.c;fp=libeap%2Fwpa_supplicant%2Fp2p_supplicant.c;h=0000000000000000000000000000000000000000;hb=852a32fe63bc7d0271cca4df1bdb7634fd494b53;hp=b1fdc2837ff06779db8556ae7fd7907de0c6e2ae;hpb=88e34eecb5769da6526361b35df00fdbe823eac5;p=mech_eap.git diff --git a/libeap/wpa_supplicant/p2p_supplicant.c b/libeap/wpa_supplicant/p2p_supplicant.c deleted file mode 100644 index b1fdc28..0000000 --- a/libeap/wpa_supplicant/p2p_supplicant.c +++ /dev/null @@ -1,9297 +0,0 @@ -/* - * wpa_supplicant - P2P - * Copyright (c) 2009-2010, Atheros Communications - * Copyright (c) 2010-2014, Jouni Malinen - * - * This software may be distributed under the terms of the BSD license. - * See README for more details. - */ - -#include "includes.h" - -#include "common.h" -#include "eloop.h" -#include "common/ieee802_11_common.h" -#include "common/ieee802_11_defs.h" -#include "common/wpa_ctrl.h" -#include "wps/wps_i.h" -#include "p2p/p2p.h" -#include "ap/hostapd.h" -#include "ap/ap_config.h" -#include "ap/sta_info.h" -#include "ap/ap_drv_ops.h" -#include "ap/wps_hostapd.h" -#include "ap/p2p_hostapd.h" -#include "ap/dfs.h" -#include "eapol_supp/eapol_supp_sm.h" -#include "rsn_supp/wpa.h" -#include "wpa_supplicant_i.h" -#include "driver_i.h" -#include "ap.h" -#include "config_ssid.h" -#include "config.h" -#include "notify.h" -#include "scan.h" -#include "bss.h" -#include "offchannel.h" -#include "wps_supplicant.h" -#include "p2p_supplicant.h" -#include "wifi_display.h" - - -/* - * How many times to try to scan to find the GO before giving up on join - * request. - */ -#define P2P_MAX_JOIN_SCAN_ATTEMPTS 10 - -#define P2P_AUTO_PD_SCAN_ATTEMPTS 5 - -/** - * Defines time interval in seconds when a GO needs to evacuate a frequency that - * it is currently using, but is no longer valid for P2P use cases. - */ -#define P2P_GO_FREQ_CHANGE_TIME 5 - -/** - * Defines CSA parameters which are used when GO evacuates the no longer valid - * channel (and if the driver supports channel switch). - */ -#define P2P_GO_CSA_COUNT 7 -#define P2P_GO_CSA_BLOCK_TX 0 - -#ifndef P2P_MAX_CLIENT_IDLE -/* - * How many seconds to try to reconnect to the GO when connection in P2P client - * role has been lost. - */ -#define P2P_MAX_CLIENT_IDLE 10 -#endif /* P2P_MAX_CLIENT_IDLE */ - -#ifndef P2P_MAX_INITIAL_CONN_WAIT -/* - * How many seconds to wait for initial 4-way handshake to get completed after - * WPS provisioning step or after the re-invocation of a persistent group on a - * P2P Client. - */ -#define P2P_MAX_INITIAL_CONN_WAIT 10 -#endif /* P2P_MAX_INITIAL_CONN_WAIT */ - -#ifndef P2P_MAX_INITIAL_CONN_WAIT_GO -/* - * How many seconds to wait for initial 4-way handshake to get completed after - * WPS provisioning step on the GO. This controls the extra time the P2P - * operation is considered to be in progress (e.g., to delay other scans) after - * WPS provisioning has been completed on the GO during group formation. - */ -#define P2P_MAX_INITIAL_CONN_WAIT_GO 10 -#endif /* P2P_MAX_INITIAL_CONN_WAIT_GO */ - -#ifndef P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE -/* - * How many seconds to wait for initial 4-way handshake to get completed after - * re-invocation of a persistent group on the GO when the client is expected - * to connect automatically (no user interaction). - */ -#define P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE 15 -#endif /* P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE */ - -#define P2P_MGMT_DEVICE_PREFIX "p2p-dev-" - -/* - * How many seconds to wait to re-attempt to move GOs, in case previous attempt - * was not possible. - */ -#define P2P_RECONSIDER_GO_MOVE_DELAY 30 - -enum p2p_group_removal_reason { - P2P_GROUP_REMOVAL_UNKNOWN, - P2P_GROUP_REMOVAL_SILENT, - P2P_GROUP_REMOVAL_FORMATION_FAILED, - P2P_GROUP_REMOVAL_REQUESTED, - P2P_GROUP_REMOVAL_IDLE_TIMEOUT, - P2P_GROUP_REMOVAL_UNAVAILABLE, - P2P_GROUP_REMOVAL_GO_ENDING_SESSION, - P2P_GROUP_REMOVAL_PSK_FAILURE, - P2P_GROUP_REMOVAL_FREQ_CONFLICT, - P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL -}; - - -static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx); -static struct wpa_supplicant * -wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated, - int go); -static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq, - const u8 *ssid, size_t ssid_len); -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); -static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq, - const u8 *ssid, size_t ssid_len); -static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx); -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 freq, - const u8 *ssid, size_t ssid_len); -static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s); -static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s); -static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx); -static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s); -static void wpas_p2p_group_formation_timeout(void *eloop_ctx, - void *timeout_ctx); -static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx); -static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s, - int group_added); -static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s); -static void wpas_stop_listen(void *ctx); -static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx); -static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s); -static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s, - enum wpa_driver_if_type type); -static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s, - int already_deleted); -static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s, - struct wpa_used_freq_data *freqs, - unsigned int num); -static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx); -static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq); -static void -wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s, - struct wpa_used_freq_data *freqs, unsigned int num, - enum wpas_p2p_channel_update_trig trig); -static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx); - - -/* - * Get the number of concurrent channels that the HW can operate, but that are - * currently not in use by any of the wpa_supplicant interfaces. - */ -static int wpas_p2p_num_unused_channels(struct wpa_supplicant *wpa_s) -{ - int *freqs; - int num, unused; - - freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int)); - if (!freqs) - return -1; - - num = get_shared_radio_freqs(wpa_s, freqs, - wpa_s->num_multichan_concurrent); - os_free(freqs); - - unused = wpa_s->num_multichan_concurrent - num; - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: num_unused_channels: %d", unused); - return unused; -} - - -/* - * Get the frequencies that are currently in use by one or more of the virtual - * interfaces, and that are also valid for P2P operation. - */ -static unsigned int -wpas_p2p_valid_oper_freqs(struct wpa_supplicant *wpa_s, - struct wpa_used_freq_data *p2p_freqs, - unsigned int len) -{ - struct wpa_used_freq_data *freqs; - unsigned int num, i, j; - - freqs = os_calloc(wpa_s->num_multichan_concurrent, - sizeof(struct wpa_used_freq_data)); - if (!freqs) - return 0; - - num = get_shared_radio_freqs_data(wpa_s, freqs, - wpa_s->num_multichan_concurrent); - - os_memset(p2p_freqs, 0, sizeof(struct wpa_used_freq_data) * len); - - for (i = 0, j = 0; i < num && j < len; i++) { - if (p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq)) - p2p_freqs[j++] = freqs[i]; - } - - os_free(freqs); - - dump_freq_data(wpa_s, "valid for P2P", p2p_freqs, j); - - return j; -} - - -static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant *wpa_s, - int freq) -{ - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return; - - /* Use the wpa_s used to control the P2P Device operation */ - wpa_s = wpa_s->global->p2p_init_wpa_s; - - if (wpa_s->conf->p2p_ignore_shared_freq && - freq > 0 && wpa_s->num_multichan_concurrent > 1 && - wpas_p2p_num_unused_channels(wpa_s) > 0) { - wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration", - freq); - freq = 0; - } - p2p_set_own_freq_preference(wpa_s->global->p2p, freq); -} - - -static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s, - struct wpa_scan_results *scan_res) -{ - size_t i; - - if (wpa_s->p2p_scan_work) { - struct wpa_radio_work *work = wpa_s->p2p_scan_work; - wpa_s->p2p_scan_work = NULL; - radio_work_done(work); - } - - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return; - - wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)", - (int) scan_res->num); - - for (i = 0; i < scan_res->num; i++) { - struct wpa_scan_res *bss = scan_res->res[i]; - struct os_reltime time_tmp_age, entry_ts; - const u8 *ies; - size_t ies_len; - - time_tmp_age.sec = bss->age / 1000; - time_tmp_age.usec = (bss->age % 1000) * 1000; - os_reltime_sub(&scan_res->fetch_time, &time_tmp_age, &entry_ts); - - ies = (const u8 *) (bss + 1); - ies_len = bss->ie_len; - if (bss->beacon_ie_len > 0 && - !wpa_scan_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) && - wpa_scan_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) { - wpa_printf(MSG_DEBUG, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for " - MACSTR, MAC2STR(bss->bssid)); - ies = ies + ies_len; - ies_len = bss->beacon_ie_len; - } - - - if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid, - bss->freq, &entry_ts, bss->level, - ies, ies_len) > 0) - break; - } - - p2p_scan_res_handled(wpa_s->global->p2p); -} - - -static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work *work, int deinit) -{ - struct wpa_supplicant *wpa_s = work->wpa_s; - struct wpa_driver_scan_params *params = work->ctx; - int ret; - - if (deinit) { - if (!work->started) { - wpa_scan_free_params(params); - return; - } - - wpa_s->p2p_scan_work = NULL; - return; - } - - ret = wpa_drv_scan(wpa_s, params); - wpa_scan_free_params(params); - work->ctx = NULL; - if (ret) { - radio_work_done(work); - p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret); - return; - } - - p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret); - os_get_reltime(&wpa_s->scan_trigger_time); - wpa_s->scan_res_handler = wpas_p2p_scan_res_handler; - wpa_s->own_scan_requested = 1; - wpa_s->p2p_scan_work = work; -} - - -static int wpas_p2p_search_social_channel(struct wpa_supplicant *wpa_s, - int freq) -{ - if (wpa_s->global->p2p_24ghz_social_channels && - (freq == 2412 || freq == 2437 || freq == 2462)) { - /* - * Search all social channels regardless of whether these have - * been disabled for P2P operating channel use to avoid missing - * peers. - */ - return 1; - } - return p2p_supported_freq(wpa_s->global->p2p, freq); -} - - -static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq, - unsigned int num_req_dev_types, - const u8 *req_dev_types, const u8 *dev_id, u16 pw_id) -{ - struct wpa_supplicant *wpa_s = ctx; - struct wpa_driver_scan_params *params = NULL; - struct wpabuf *wps_ie, *ies; - unsigned int num_channels = 0; - int social_channels_freq[] = { 2412, 2437, 2462, 60480 }; - size_t ielen; - u8 *n, i; - unsigned int bands; - - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return -1; - - if (wpa_s->p2p_scan_work) { - wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending"); - return -1; - } - - params = os_zalloc(sizeof(*params)); - if (params == NULL) - return -1; - - /* P2P Wildcard SSID */ - params->num_ssids = 1; - n = os_malloc(P2P_WILDCARD_SSID_LEN); - if (n == NULL) - goto fail; - os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN); - params->ssids[0].ssid = n; - params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN; - - wpa_s->wps->dev.p2p = 1; - wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev, - wpa_s->wps->uuid, WPS_REQ_ENROLLEE, - num_req_dev_types, req_dev_types); - if (wps_ie == NULL) - goto fail; - - switch (type) { - case P2P_SCAN_SOCIAL: - params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 1, - sizeof(int)); - if (params->freqs == NULL) - goto fail; - for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) { - if (wpas_p2p_search_social_channel( - wpa_s, social_channels_freq[i])) - params->freqs[num_channels++] = - social_channels_freq[i]; - } - params->freqs[num_channels++] = 0; - break; - case P2P_SCAN_FULL: - break; - case P2P_SCAN_SPECIFIC: - params->freqs = os_calloc(2, sizeof(int)); - if (params->freqs == NULL) - goto fail; - params->freqs[0] = freq; - params->freqs[1] = 0; - break; - case P2P_SCAN_SOCIAL_PLUS_ONE: - params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 2, - sizeof(int)); - if (params->freqs == NULL) - goto fail; - for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) { - if (wpas_p2p_search_social_channel( - wpa_s, social_channels_freq[i])) - params->freqs[num_channels++] = - social_channels_freq[i]; - } - if (p2p_supported_freq(wpa_s->global->p2p, freq)) - params->freqs[num_channels++] = freq; - params->freqs[num_channels++] = 0; - break; - } - - 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); - goto fail; - } - wpabuf_put_buf(ies, wps_ie); - wpabuf_free(wps_ie); - - bands = wpas_get_bands(wpa_s, params->freqs); - p2p_scan_ie(wpa_s->global->p2p, ies, dev_id, bands); - - params->p2p_probe = 1; - n = os_malloc(wpabuf_len(ies)); - if (n == NULL) { - wpabuf_free(ies); - goto fail; - } - os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies)); - params->extra_ies = n; - params->extra_ies_len = wpabuf_len(ies); - wpabuf_free(ies); - - radio_remove_works(wpa_s, "p2p-scan", 0); - if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb, - params) < 0) - goto fail; - return 0; - -fail: - wpa_scan_free_params(params); - return -1; -} - - -static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface) -{ - switch (p2p_group_interface) { - case P2P_GROUP_INTERFACE_PENDING: - return WPA_IF_P2P_GROUP; - case P2P_GROUP_INTERFACE_GO: - return WPA_IF_P2P_GO; - case P2P_GROUP_INTERFACE_CLIENT: - return WPA_IF_P2P_CLIENT; - } - - return WPA_IF_P2P_GROUP; -} - - -static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s, - const u8 *ssid, - size_t ssid_len, int *go) -{ - struct wpa_ssid *s; - - for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) { - for (s = wpa_s->conf->ssid; s; s = s->next) { - if (s->disabled != 0 || !s->p2p_group || - s->ssid_len != ssid_len || - os_memcmp(ssid, s->ssid, ssid_len) != 0) - continue; - if (s->mode == WPAS_MODE_P2P_GO && - s != wpa_s->current_ssid) - continue; - if (go) - *go = s->mode == WPAS_MODE_P2P_GO; - return wpa_s; - } - } - - return NULL; -} - - -static void run_wpas_p2p_disconnect(void *eloop_ctx, void *timeout_ctx) -{ - struct wpa_supplicant *wpa_s = eloop_ctx; - wpa_printf(MSG_DEBUG, - "P2P: Complete previously requested removal of %s", - wpa_s->ifname); - wpas_p2p_disconnect(wpa_s); -} - - -static int wpas_p2p_disconnect_safely(struct wpa_supplicant *wpa_s, - struct wpa_supplicant *calling_wpa_s) -{ - if (calling_wpa_s == wpa_s && wpa_s && - wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) { - /* - * The calling wpa_s instance is going to be removed. Do that - * from an eloop callback to keep the instance available until - * the caller has returned. This my be needed, e.g., to provide - * control interface responses on the per-interface socket. - */ - if (eloop_register_timeout(0, 0, run_wpas_p2p_disconnect, - wpa_s, NULL) < 0) - return -1; - return 0; - } - - return wpas_p2p_disconnect(wpa_s); -} - - -/* Determine total number of clients in active groups where we are the GO */ -static unsigned int p2p_group_go_member_count(struct wpa_supplicant *wpa_s) -{ - unsigned int count = 0; - struct wpa_ssid *s; - - for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) { - for (s = wpa_s->conf->ssid; s; s = s->next) { - wpa_printf(MSG_DEBUG, - "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d", - wpa_s, s, s->disabled, s->p2p_group, - s->mode); - if (!s->disabled && s->p2p_group && - s->mode == WPAS_MODE_P2P_GO) { - count += p2p_get_group_num_members( - wpa_s->p2p_group); - } - } - } - - return count; -} - - -static unsigned int p2p_is_active_persistent_group(struct wpa_supplicant *wpa_s) -{ - return !wpa_s->p2p_mgmt && wpa_s->current_ssid && - !wpa_s->current_ssid->disabled && - wpa_s->current_ssid->p2p_group && - wpa_s->current_ssid->p2p_persistent_group; -} - - -static unsigned int p2p_is_active_persistent_go(struct wpa_supplicant *wpa_s) -{ - return p2p_is_active_persistent_group(wpa_s) && - wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO; -} - - -/* Find an interface for a P2P group where we are the GO */ -static struct wpa_supplicant * -wpas_p2p_get_go_group(struct wpa_supplicant *wpa_s) -{ - struct wpa_supplicant *save = NULL; - - if (!wpa_s) - return NULL; - - for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) { - if (!p2p_is_active_persistent_go(wpa_s)) - continue; - - /* Prefer a group with connected clients */ - if (p2p_get_group_num_members(wpa_s->p2p_group)) - return wpa_s; - save = wpa_s; - } - - /* No group with connected clients, so pick the one without (if any) */ - return save; -} - - -static unsigned int p2p_is_active_persistent_cli(struct wpa_supplicant *wpa_s) -{ - return p2p_is_active_persistent_group(wpa_s) && - wpa_s->current_ssid->mode == WPAS_MODE_INFRA; -} - - -/* Find an interface for a P2P group where we are the P2P Client */ -static struct wpa_supplicant * -wpas_p2p_get_cli_group(struct wpa_supplicant *wpa_s) -{ - for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) { - if (p2p_is_active_persistent_cli(wpa_s)) - return wpa_s; - } - - return NULL; -} - - -/* Find a persistent group where we are the GO */ -static struct wpa_ssid * -wpas_p2p_get_persistent_go(struct wpa_supplicant *wpa_s) -{ - struct wpa_ssid *s; - - for (s = wpa_s->conf->ssid; s; s = s->next) { - if (s->disabled == 2 && s->mode == WPAS_MODE_P2P_GO) - return s; - } - - return NULL; -} - - -static u8 p2ps_group_capability(void *ctx, u8 incoming, u8 role, - unsigned int *force_freq, - unsigned int *pref_freq) -{ - struct wpa_supplicant *wpa_s = ctx; - struct wpa_ssid *s; - u8 conncap = P2PS_SETUP_NONE; - unsigned int owned_members = 0; - struct wpa_supplicant *go_wpa_s, *cli_wpa_s; - struct wpa_ssid *persistent_go; - int p2p_no_group_iface; - unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size; - - wpa_printf(MSG_DEBUG, "P2P: Conncap - in:%d role:%d", incoming, role); - - if (force_freq) - *force_freq = 0; - if (pref_freq) - *pref_freq = 0; - - size = P2P_MAX_PREF_CHANNELS; - if (force_freq && pref_freq && - !wpas_p2p_setup_freqs(wpa_s, 0, (int *) force_freq, - (int *) pref_freq, 0, pref_freq_list, &size)) - wpas_p2p_set_own_freq_preference(wpa_s, - *force_freq ? *force_freq : - *pref_freq); - - /* - * For non-concurrent capable devices: - * If persistent_go, then no new. - * If GO, then no client. - * If client, then no GO. - */ - go_wpa_s = wpas_p2p_get_go_group(wpa_s); - if (go_wpa_s) - owned_members = p2p_get_group_num_members(go_wpa_s->p2p_group); - persistent_go = wpas_p2p_get_persistent_go(wpa_s); - p2p_no_group_iface = !wpas_p2p_create_iface(wpa_s); - cli_wpa_s = wpas_p2p_get_cli_group(wpa_s); - - wpa_printf(MSG_DEBUG, - "P2P: GO(iface)=%p members=%u CLI(iface)=%p persistent(ssid)=%p", - go_wpa_s, owned_members, cli_wpa_s, persistent_go); - - /* If not concurrent, restrict our choices */ - if (p2p_no_group_iface) { - wpa_printf(MSG_DEBUG, "P2P: p2p_no_group_iface"); - - if (cli_wpa_s) - return P2PS_SETUP_NONE; - - if (go_wpa_s) { - if (role == P2PS_SETUP_CLIENT || - incoming == P2PS_SETUP_GROUP_OWNER || - p2p_client_limit_reached(go_wpa_s->p2p_group)) - return P2PS_SETUP_NONE; - - return P2PS_SETUP_GROUP_OWNER; - } - - if (persistent_go) { - if (role == P2PS_SETUP_NONE || role == P2PS_SETUP_NEW) { - if (!incoming) - return P2PS_SETUP_GROUP_OWNER | - P2PS_SETUP_CLIENT; - if (incoming == P2PS_SETUP_NEW) { - u8 r; - - if (os_get_random(&r, sizeof(r)) < 0 || - (r & 1)) - return P2PS_SETUP_CLIENT; - return P2PS_SETUP_GROUP_OWNER; - } - } - } - } - - /* If a required role has been specified, handle it here */ - if (role && role != P2PS_SETUP_NEW) { - switch (incoming) { - case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW: - case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT: - /* - * Peer has an active GO, so if the role allows it and - * we do not have any active roles, become client. - */ - if ((role & P2PS_SETUP_CLIENT) && !go_wpa_s && - !cli_wpa_s) - return P2PS_SETUP_CLIENT; - - /* fall through */ - - case P2PS_SETUP_NONE: - case P2PS_SETUP_NEW: - conncap = role; - goto grp_owner; - - case P2PS_SETUP_GROUP_OWNER: - /* - * Must be a complimentary role - cannot be a client to - * more than one peer. - */ - if (incoming == role || cli_wpa_s) - return P2PS_SETUP_NONE; - - return P2PS_SETUP_CLIENT; - - case P2PS_SETUP_CLIENT: - /* Must be a complimentary role */ - if (incoming != role) { - conncap = P2PS_SETUP_GROUP_OWNER; - goto grp_owner; - } - - default: - return P2PS_SETUP_NONE; - } - } - - /* - * For now, we only will support ownership of one group, and being a - * client of one group. Therefore, if we have either an existing GO - * group, or an existing client group, we will not do a new GO - * negotiation, but rather try to re-use the existing groups. - */ - switch (incoming) { - case P2PS_SETUP_NONE: - case P2PS_SETUP_NEW: - if (cli_wpa_s) - conncap = P2PS_SETUP_GROUP_OWNER; - else if (!owned_members) - conncap = P2PS_SETUP_NEW; - else if (incoming == P2PS_SETUP_NONE) - conncap = P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT; - else - conncap = P2PS_SETUP_CLIENT; - break; - - case P2PS_SETUP_CLIENT: - conncap = P2PS_SETUP_GROUP_OWNER; - break; - - case P2PS_SETUP_GROUP_OWNER: - if (!cli_wpa_s) - conncap = P2PS_SETUP_CLIENT; - break; - - case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW: - case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT: - if (cli_wpa_s) - conncap = P2PS_SETUP_GROUP_OWNER; - else { - u8 r; - - if (os_get_random(&r, sizeof(r)) < 0 || - (r & 1)) - conncap = P2PS_SETUP_CLIENT; - else - conncap = P2PS_SETUP_GROUP_OWNER; - } - break; - - default: - return P2PS_SETUP_NONE; - } - -grp_owner: - if ((conncap & P2PS_SETUP_GROUP_OWNER) || - (!incoming && (conncap & P2PS_SETUP_NEW))) { - if (go_wpa_s && p2p_client_limit_reached(go_wpa_s->p2p_group)) - conncap &= ~P2PS_SETUP_GROUP_OWNER; - - s = wpas_p2p_get_persistent_go(wpa_s); - if (!s && !go_wpa_s && p2p_no_group_iface) { - p2p_set_intended_addr(wpa_s->global->p2p, - wpa_s->p2p_mgmt ? - wpa_s->parent->own_addr : - wpa_s->own_addr); - } else if (!s && !go_wpa_s) { - if (wpas_p2p_add_group_interface(wpa_s, - WPA_IF_P2P_GO) < 0) { - wpa_printf(MSG_ERROR, - "P2P: Failed to allocate a new interface for the group"); - return P2PS_SETUP_NONE; - } - wpa_s->global->pending_group_iface_for_p2ps = 1; - p2p_set_intended_addr(wpa_s->global->p2p, - wpa_s->pending_interface_addr); - } - } - - return conncap; -} - - -static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s, - enum p2p_group_removal_reason removal_reason) -{ - struct wpa_ssid *ssid; - char *gtype; - const char *reason; - - ssid = wpa_s->current_ssid; - if (ssid == NULL) { - /* - * The current SSID was not known, but there may still be a - * pending P2P group interface waiting for provisioning or a - * P2P group that is trying to reconnect. - */ - ssid = wpa_s->conf->ssid; - while (ssid) { - if (ssid->p2p_group && ssid->disabled != 2) - break; - ssid = ssid->next; - } - if (ssid == NULL && - wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE) - { - wpa_printf(MSG_ERROR, "P2P: P2P group interface " - "not found"); - return -1; - } - } - if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO) - gtype = "GO"; - else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT || - (ssid && ssid->mode == WPAS_MODE_INFRA)) { - wpa_s->reassociate = 0; - wpa_s->disconnected = 1; - gtype = "client"; - } else - gtype = "GO"; - - if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid) - wpas_notify_p2p_group_removed(wpa_s, ssid, gtype); - - if (os_strcmp(gtype, "client") == 0) { - wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); - if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal, - wpa_s, NULL)) { - wpa_printf(MSG_DEBUG, - "P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal"); - removal_reason = P2P_GROUP_REMOVAL_PSK_FAILURE; - eloop_cancel_timeout(wpas_p2p_psk_failure_removal, - wpa_s, NULL); - } - } - - if (wpa_s->cross_connect_in_use) { - wpa_s->cross_connect_in_use = 0; - wpa_msg_global(wpa_s->p2pdev, MSG_INFO, - P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s", - wpa_s->ifname, wpa_s->cross_connect_uplink); - } - switch (removal_reason) { - case P2P_GROUP_REMOVAL_REQUESTED: - reason = " reason=REQUESTED"; - break; - case P2P_GROUP_REMOVAL_FORMATION_FAILED: - reason = " reason=FORMATION_FAILED"; - break; - case P2P_GROUP_REMOVAL_IDLE_TIMEOUT: - reason = " reason=IDLE"; - break; - case P2P_GROUP_REMOVAL_UNAVAILABLE: - reason = " reason=UNAVAILABLE"; - break; - case P2P_GROUP_REMOVAL_GO_ENDING_SESSION: - reason = " reason=GO_ENDING_SESSION"; - break; - case P2P_GROUP_REMOVAL_PSK_FAILURE: - reason = " reason=PSK_FAILURE"; - break; - case P2P_GROUP_REMOVAL_FREQ_CONFLICT: - reason = " reason=FREQ_CONFLICT"; - break; - default: - reason = ""; - break; - } - if (removal_reason != P2P_GROUP_REMOVAL_SILENT) { - wpa_msg_global(wpa_s->p2pdev, MSG_INFO, - P2P_EVENT_GROUP_REMOVED "%s %s%s", - wpa_s->ifname, gtype, reason); - } - - if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0) - wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout"); - if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0) - wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout"); - if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout, - wpa_s->p2pdev, NULL) > 0) { - wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation " - "timeout"); - wpa_s->p2p_in_provisioning = 0; - wpas_p2p_group_formation_failed(wpa_s, 1); - } - - wpa_s->p2p_in_invitation = 0; - eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL); - eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, wpa_s, NULL); - - /* - * Make sure wait for the first client does not remain active after the - * group has been removed. - */ - wpa_s->global->p2p_go_wait_client.sec = 0; - - if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) { - struct wpa_global *global; - char *ifname; - enum wpa_driver_if_type type; - wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s", - wpa_s->ifname); - global = wpa_s->global; - ifname = os_strdup(wpa_s->ifname); - type = wpas_p2p_if_type(wpa_s->p2p_group_interface); - eloop_cancel_timeout(run_wpas_p2p_disconnect, wpa_s, NULL); - wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0); - wpa_s = global->ifaces; - if (wpa_s && ifname) - wpa_drv_if_remove(wpa_s, type, ifname); - os_free(ifname); - return 1; - } - - /* - * The primary interface was used for P2P group operations, so - * need to reset its p2pdev. - */ - wpa_s->p2pdev = wpa_s->parent; - - if (!wpa_s->p2p_go_group_formation_completed) { - wpa_s->global->p2p_group_formation = NULL; - wpa_s->p2p_in_provisioning = 0; - } - - wpa_s->show_group_started = 0; - os_free(wpa_s->go_params); - wpa_s->go_params = NULL; - - os_free(wpa_s->p2p_group_common_freqs); - wpa_s->p2p_group_common_freqs = NULL; - wpa_s->p2p_group_common_freqs_num = 0; - - wpa_s->waiting_presence_resp = 0; - - wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network"); - if (ssid && (ssid->p2p_group || - ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION || - (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) { - int id = ssid->id; - if (ssid == wpa_s->current_ssid) { - wpa_sm_set_config(wpa_s->wpa, NULL); - eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); - wpa_s->current_ssid = NULL; - } - /* - * Networks objects created during any P2P activities are not - * exposed out as they might/will confuse certain non-P2P aware - * applications since these network objects won't behave like - * regular ones. - * - * Likewise, we don't send out network removed signals for such - * network objects. - */ - wpa_config_remove_network(wpa_s->conf, id); - wpa_supplicant_clear_status(wpa_s); - wpa_supplicant_cancel_sched_scan(wpa_s); - } else { - wpa_printf(MSG_DEBUG, "P2P: Temporary group network not " - "found"); - } - if (wpa_s->ap_iface) - wpa_supplicant_ap_deinit(wpa_s); - else - wpa_drv_deinit_p2p_cli(wpa_s); - - os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN); - - return 0; -} - - -static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s, - u8 *go_dev_addr, - const u8 *ssid, size_t ssid_len) -{ - struct wpa_bss *bss; - const u8 *bssid; - struct wpabuf *p2p; - u8 group_capab; - const u8 *addr; - - if (wpa_s->go_params) - bssid = wpa_s->go_params->peer_interface_addr; - else - bssid = wpa_s->bssid; - - bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len); - if (bss == NULL && wpa_s->go_params && - !is_zero_ether_addr(wpa_s->go_params->peer_device_addr)) - bss = wpa_bss_get_p2p_dev_addr( - wpa_s, wpa_s->go_params->peer_device_addr); - if (bss == NULL) { - u8 iface_addr[ETH_ALEN]; - if (p2p_get_interface_addr(wpa_s->global->p2p, bssid, - iface_addr) == 0) - bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len); - } - if (bss == NULL) { - wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether " - "group is persistent - BSS " MACSTR " not found", - MAC2STR(bssid)); - return 0; - } - - p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE); - if (p2p == NULL) - p2p = wpa_bss_get_vendor_ie_multi_beacon(bss, - P2P_IE_VENDOR_TYPE); - if (p2p == NULL) { - wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether " - "group is persistent - BSS " MACSTR - " did not include P2P IE", MAC2STR(bssid)); - wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs", - (u8 *) (bss + 1), bss->ie_len); - wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs", - ((u8 *) bss + 1) + bss->ie_len, - bss->beacon_ie_len); - return 0; - } - - group_capab = p2p_get_group_capab(p2p); - addr = p2p_get_go_dev_addr(p2p); - wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: " - "group_capab=0x%x", group_capab); - if (addr) { - os_memcpy(go_dev_addr, addr, ETH_ALEN); - wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR, - MAC2STR(addr)); - } else - os_memset(go_dev_addr, 0, ETH_ALEN); - wpabuf_free(p2p); - - wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x " - "go_dev_addr=" MACSTR, - MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr)); - - return !!(group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP); -} - - -static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s, - struct wpa_ssid *ssid, - const u8 *go_dev_addr) -{ - struct wpa_ssid *s; - int changed = 0; - - wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent " - "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr)); - for (s = wpa_s->conf->ssid; s; s = s->next) { - if (s->disabled == 2 && - os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 && - s->ssid_len == ssid->ssid_len && - os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0) - break; - } - - if (s) { - wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group " - "entry"); - if (ssid->passphrase && !s->passphrase) - changed = 1; - else if (ssid->passphrase && s->passphrase && - os_strcmp(ssid->passphrase, s->passphrase) != 0) - changed = 1; - } else { - wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group " - "entry"); - changed = 1; - s = wpa_config_add_network(wpa_s->conf); - if (s == NULL) - return -1; - - /* - * Instead of network_added we emit persistent_group_added - * notification. Also to keep the defense checks in - * persistent_group obj registration method, we set the - * relevant flags in s to designate it as a persistent group. - */ - s->p2p_group = 1; - s->p2p_persistent_group = 1; - wpas_notify_persistent_group_added(wpa_s, s); - wpa_config_set_network_defaults(s); - } - - s->p2p_group = 1; - s->p2p_persistent_group = 1; - s->disabled = 2; - s->bssid_set = 1; - os_memcpy(s->bssid, go_dev_addr, ETH_ALEN); - s->mode = ssid->mode; - s->auth_alg = WPA_AUTH_ALG_OPEN; - s->key_mgmt = WPA_KEY_MGMT_PSK; - s->proto = WPA_PROTO_RSN; - s->pbss = ssid->pbss; - s->pairwise_cipher = ssid->pbss ? WPA_CIPHER_GCMP : WPA_CIPHER_CCMP; - s->export_keys = 1; - if (ssid->passphrase) { - os_free(s->passphrase); - s->passphrase = os_strdup(ssid->passphrase); - } - if (ssid->psk_set) { - s->psk_set = 1; - os_memcpy(s->psk, ssid->psk, 32); - } - if (s->passphrase && !s->psk_set) - wpa_config_update_psk(s); - if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) { - os_free(s->ssid); - s->ssid = os_malloc(ssid->ssid_len); - } - if (s->ssid) { - s->ssid_len = ssid->ssid_len; - os_memcpy(s->ssid, ssid->ssid, s->ssid_len); - } - if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) { - dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list); - wpa_s->global->add_psk = NULL; - changed = 1; - } - - if (changed && wpa_s->conf->update_config && - wpa_config_write(wpa_s->confname, wpa_s->conf)) { - wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration"); - } - - return s->id; -} - - -static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s, - const u8 *addr) -{ - struct wpa_ssid *ssid, *s; - u8 *n; - size_t i; - int found = 0; - struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s; - - 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->p2pdev, 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]; - - /* - * 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->p2pdev, 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->p2pdev, 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) - wpas_p2p_store_persistent_group(wpa_s->p2pdev, - ssid, go_dev_addr); - else { - os_free(wpa_s->global->add_psk); - wpa_s->global->add_psk = NULL; - } - - if (!client) { - wpas_notify_p2p_group_started(wpa_s, ssid, persistent, 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_free_send_action_work(struct wpa_supplicant *wpa_s) -{ - struct send_action_work *awork = wpa_s->p2p_send_action_work->ctx; - - wpa_printf(MSG_DEBUG, - "P2P: Free Action frame radio work @%p (freq=%u dst=" - MACSTR " src=" MACSTR " bssid=" MACSTR " wait_time=%u)", - wpa_s->p2p_send_action_work, awork->freq, - MAC2STR(awork->dst), MAC2STR(awork->src), - MAC2STR(awork->bssid), awork->wait_time); - wpa_hexdump(MSG_DEBUG, "P2P: Freeing pending Action frame", - awork->buf, awork->len); - os_free(awork); - wpa_s->p2p_send_action_work->ctx = NULL; - radio_work_done(wpa_s->p2p_send_action_work); - wpa_s->p2p_send_action_work = NULL; -} - - -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"); - wpas_p2p_free_send_action_work(wpa_s); -} - - -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; - wpa_printf(MSG_DEBUG, - "P2P: Clear Action TX work @%p (wait_time=%u)", - wpa_s->p2p_send_action_work, awork->wait_time); - if (awork->wait_time == 0) { - wpas_p2p_free_send_action_work(wpa_s); - } 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->p2pdev, 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->p2pdev->p2p_oob_dev_pw, - wpa_s->p2pdev->p2p_oob_dev_pw_id, 1, - wpa_s->p2pdev->p2p_oob_dev_pw_id == - DEV_PW_NFC_CONNECTION_HANDOVER ? - wpa_s->p2pdev->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->p2pdev, 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->p2pdev->conf->update_config && - wpa_config_write(wpa_s->p2pdev->confname, wpa_s->p2pdev->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; - - wpa_s->ap_configured_cb = NULL; - wpa_s->ap_configured_cb_ctx = NULL; - wpa_s->ap_configured_cb_data = NULL; - if (!wpa_s->go_params) { - wpa_printf(MSG_ERROR, - "P2P: p2p_go_configured() called with wpa_s->go_params == NULL"); - return; - } - - 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->p2pdev->p2ps_method_config_any) { - if (is_zero_ether_addr(wpa_s->p2pdev->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->p2pdev->p2ps_join_addr)); - wpa_supplicant_ap_wps_pin( - wpa_s, wpa_s->p2pdev->p2ps_join_addr, - "12345670", NULL, 0, 0); - } - wpa_s->p2pdev->p2ps_method_config_any = 0; - } - - os_get_reltime(&wpa_s->global->p2p_go_wait_client); - if (params->persistent_group) { - wpas_p2p_store_persistent_group( - wpa_s->p2pdev, ssid, - wpa_s->global->p2p_dev_addr); - wpas_p2p_add_psk_list(wpa_s, ssid); - } - - wpas_notify_p2p_group_started(wpa_s, ssid, - params->persistent_group, 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->p2pdev, NULL); - eloop_register_timeout( - wpa_s->p2p_first_connection_timeout, 0, - wpas_p2p_group_formation_timeout, - wpa_s->p2pdev, 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->p2pdev->p2p_oob_dev_pw_id != - DEV_PW_NFC_CONNECTION_HANDOVER && - !wpa_s->p2pdev->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->p2pdev->p2p_oob_dev_pw_id, - wpa_s->p2pdev->p2p_oob_dev_pw, - wpa_s->p2pdev->p2p_peer_oob_pk_hash_known ? - wpa_s->p2pdev->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->max_oper_chwidth = params->max_oper_chwidth; - ssid->vht_center_freq2 = params->vht_center_freq2; - 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; - /* P2P GO in 60 GHz is always a PCP (PBSS) */ - ssid->pbss = 1; - } - 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->p2pdev->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) \ -do { \ - if (s->n && !d->n) \ - d->n = os_strdup(s->n); \ -} while (0) - - 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_pw_from_config) { - wpabuf_free(d->wps_nfc_dh_privkey); - wpabuf_free(d->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->p2pdev, 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->p2pdev, NULL); - eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout, - wpa_s->p2pdev, 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->p2pdev, NULL); - eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout, - wpa_s->p2pdev, NULL); -} - - -static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res) -{ - struct wpa_supplicant *wpa_s = ctx; - struct wpa_supplicant *group_wpa_s; - - 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; - res->max_oper_chwidth = wpa_s->p2p_go_max_oper_chwidth; - res->vht_center_freq2 = wpa_s->p2p_go_vht_center_freq2; - - 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) { - 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; - } - os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN); - wpa_s->pending_interface_name[0] = '\0'; - } else { - group_wpa_s = wpa_s->parent; - wpa_s->global->p2p_group_formation = group_wpa_s; - if (group_wpa_s != wpa_s) - wpas_p2p_clone_config(group_wpa_s, wpa_s); - } - - group_wpa_s->p2p_in_provisioning = 1; - group_wpa_s->p2pdev = wpa_s; - 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; - } - 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); - } - - 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; - - if (wpa_s->p2p_scan_work && wpas_abort_ongoing_scan(wpa_s) < 0) - wpa_printf(MSG_DEBUG, "P2P: Abort ongoing scan failed"); - - 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) { - if (wps_generate_pin(&generated_pin) < 0) { - wpa_printf(MSG_DEBUG, "P2P: Could not generate PIN"); - wpas_notify_p2p_provision_discovery( - wpa_s, peer, 0 /* response */, - P2P_PROV_DISC_INFO_UNAVAILABLE, 0, 0); - return; - } - 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) { - if (wps_generate_pin(&generated_pin) < 0) { - wpa_printf(MSG_DEBUG, "P2P: Could not generate PIN"); - wpas_notify_p2p_provision_discovery( - wpa_s, peer, 0 /* response */, - P2P_PROV_DISC_INFO_UNAVAILABLE, 0, 0); - return; - } - 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->p2pdev, 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; -} - - -static int wpas_sta_check_ecsa(struct hostapd_data *hapd, - struct sta_info *sta, void *ctx) -{ - int *ecsa_support = ctx; - - *ecsa_support &= sta->ecsa_supported; - - return 0; -} - - -/* Check if all the peers support eCSA */ -static int wpas_p2p_go_clients_support_ecsa(struct wpa_supplicant *wpa_s) -{ - int ecsa_support = 1; - - ap_for_each_sta(wpa_s->ap_iface->bss[0], wpas_sta_check_ecsa, - &ecsa_support); - - return ecsa_support; -} - - -/** - * 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; - } - if (wpa_s->p2p_mgmt) - os_memcpy(group_bssid, wpa_s->parent->own_addr, - ETH_ALEN); - else - 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; - if (go) { - wpa_msg_global(wpa_s, MSG_INFO, - P2P_EVENT_INVITATION_ACCEPTED - "sa=" MACSTR - " persistent=%d freq=%d", - MAC2STR(sa), s->id, op_freq); - } else { - wpa_msg_global(wpa_s, MSG_INFO, - P2P_EVENT_INVITATION_ACCEPTED - "sa=" MACSTR - " persistent=%d", - MAC2STR(sa), s->id); - } - wpas_p2p_group_add_persistent( - wpa_s, s, go, 0, op_freq, 0, 0, 0, 0, NULL, - go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0, - 1); - } else if (bssid) { - wpa_s->user_initiated_pd = 0; - wpa_msg_global(wpa_s, MSG_INFO, - P2P_EVENT_INVITATION_ACCEPTED - "sa=" MACSTR " go_dev_addr=" MACSTR - " bssid=" MACSTR " unknown-network", - MAC2STR(sa), MAC2STR(go_dev_addr), - MAC2STR(bssid)); - 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->p2pdev, 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) { - struct wpa_supplicant *group_if = - wpa_s->global->p2p_invite_group; - - if (status == P2P_SC_FAIL_UNKNOWN_GROUP) - wpas_remove_persistent_client(wpa_s, peer); - - /* - * Invitation to an active group. If this is successful and we - * are the GO, set the client wait to postpone some concurrent - * operations and to allow provisioning and connection to happen - * more quickly. - */ - if (status == P2P_SC_SUCCESS && - group_if && group_if->current_ssid && - group_if->current_ssid->mode == WPAS_MODE_P2P_GO) { - os_get_reltime(&wpa_s->global->p2p_go_wait_client); -#ifdef CONFIG_TESTING_OPTIONS - if (group_if->p2p_go_csa_on_inv) { - wpa_printf(MSG_DEBUG, - "Testing: force P2P GO CSA after invitation"); - eloop_cancel_timeout( - wpas_p2p_reconsider_moving_go, - wpa_s, NULL); - eloop_register_timeout( - 0, 50000, - wpas_p2p_reconsider_moving_go, - wpa_s, NULL); - } -#endif /* CONFIG_TESTING_OPTIONS */ - } - return; - } - - 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_vht_center_freq2, - wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht, - wpa_s->p2p_go_max_oper_chwidth, - 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; -} - - -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; -} - - -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 }; - size_t 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 int wpas_p2p_get_center_160mhz(struct wpa_supplicant *wpa_s, - struct hostapd_hw_modes *mode, - u8 channel) -{ - u8 center_channels[] = { 50, 114 }; - unsigned int i; - - if (mode->mode != HOSTAPD_MODE_IEEE80211A) - return 0; - - for (i = 0; i < ARRAY_SIZE(center_channels); i++) - /* - * In 160 MHz, the bandwidth "spans" 28 channels (e.g., 36-64), - * so the center channel is 14 channels away from the start/end. - */ - if (channel >= center_channels[i] - 14 && - channel <= center_channels[i] + 14) - return center_channels[i]; - - return 0; -} - - -static enum chan_allowed wpas_p2p_verify_160mhz(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_160mhz(wpa_s, mode, channel); - if (!center_chan) - return NOT_ALLOWED; - /* VHT 160 MHz uses DFS channels in most countries. */ - - /* Check all the channels are available */ - for (i = 0; i < 8; i++) { - int adj_chan = center_chan - 14 + 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_150)) - return NOT_ALLOWED; - if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_130)) - return NOT_ALLOWED; - if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_110)) - return NOT_ALLOWED; - if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_90)) - return NOT_ALLOWED; - if (i == 4 && !(flags & HOSTAPD_CHAN_VHT_90_70)) - return NOT_ALLOWED; - if (i == 5 && !(flags & HOSTAPD_CHAN_VHT_110_50)) - return NOT_ALLOWED; - if (i == 6 && !(flags & HOSTAPD_CHAN_VHT_130_30)) - return NOT_ALLOWED; - if (i == 7 && !(flags & HOSTAPD_CHAN_VHT_150_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); - } else if (bw == BW160) { - res2 = wpas_p2p_verify_160mhz(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; global_op_class[op].op_class; op++) { - const struct oper_class_map *o = &global_op_class[op]; - u8 ch; - struct p2p_reg_class *reg = NULL, *cli_reg = NULL; - - if (o->p2p == NO_P2P_SUPP) - continue; - - 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; global_op_class[op].op_class; op++) { - const struct oper_class_map *o = &global_op_class[op]; - u8 ch; - - if (o->p2p == NO_P2P_SUPP) - continue; - - 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); -} - - -int wpas_p2p_get_vht160_center(struct wpa_supplicant *wpa_s, - struct hostapd_hw_modes *mode, u8 channel) -{ - if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW160)) - return 0; - return wpas_p2p_get_center_160mhz(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; - } - - p2pdev_wpa_s->p2pdev = p2pdev_wpa_s; - 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, - unsigned int *freq) -{ - struct wpa_supplicant *wpa_s = ctx; - struct wpa_supplicant *go; - struct wpa_ssid *s; - - /* - * 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; - - if (freq) - *freq = 0; - - go = wpas_p2p_get_go_group(wpa_s); - if (!go) { - s = wpas_p2p_get_persistent_go(wpa_s); - *group_iface = wpas_p2p_create_iface(wpa_s); - if (s) - os_memcpy(intended_addr, s->bssid, ETH_ALEN); - else - return 0; - } else { - s = go->current_ssid; - os_memcpy(intended_addr, go->own_addr, ETH_ALEN); - if (freq) - *freq = go->assoc_freq; - } - - 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, - unsigned int freq, - const u8 *group_ssid, size_t group_ssid_len) -{ - struct wpa_supplicant *wpa_s = ctx; - u8 mac[ETH_ALEN]; - struct wpa_ssid *persistent_go, *stale, *s = NULL; - 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 */ - if (persist_ssid && persist_ssid_size) - 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; - wpa_s->global->pending_p2ps_group_freq = freq; - - 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, 0, - 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, freq, 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, freq, 0, 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) { - char ssid_hex[32 * 2 + 1]; - - if (group_ssid) - wpa_snprintf_hex(ssid_hex, sizeof(ssid_hex), - group_ssid, group_ssid_len); - else - ssid_hex[0] = '\0'; - 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%s%s", - MAC2STR(dev), status, conncap, - adv_id, MAC2STR(adv_mac), - ses_id, MAC2STR(ses_mac), - passwd_id, MAC2STR(grp_mac), feat_cap_str, - group_ssid ? " group_ssid=" : "", ssid_hex); - } 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; - unsigned int freq; - - if (!wpa_s->global->pending_p2ps_group) - return 0; - - freq = wpa_s->global->pending_p2ps_group_freq; - wpa_s->global->pending_p2ps_group_freq = 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, 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, freq, 0, 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->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->p2pdev, 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->p2pdev, 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_go_vht_center_freq2, - wpa_s->p2p_persistent_id, - wpa_s->p2p_pd_before_go_neg, - wpa_s->p2p_go_ht40, - wpa_s->p2p_go_vht, - wpa_s->p2p_go_max_oper_chwidth, - NULL, 0); - 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->p2pdev, 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); - } else 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->p2pdev, 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, wpa_s->p2p_join_ssid, - wpa_s->p2p_join_ssid_len); -} - - -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 }; - unsigned int bands; - - 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; - } - - 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; - } - - 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); - - bands = wpas_get_bands(wpa_s, freqs); - p2p_scan_ie(wpa_s->global->p2p, ies, NULL, bands); - - params.p2p_probe = 1; - params.extra_ies = wpabuf_head(ies); - params.extra_ies_len = wpabuf_len(ies); - - /* - * 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 { - if (ssid && ssid_len) { - bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr, - 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)); - } else if (ssid && ssid_len) { - res.ssid_len = ssid_len; - os_memcpy(res.ssid, ssid, ssid_len); - wpa_printf(MSG_DEBUG, "P2P: Join target GO (SSID %s)", - wpa_ssid_txt(ssid, 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 - * @freq2: Center frequency of segment 1 for the GO operating in VHT 80P80 mode - * @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 - * @vht_chwidth: Channel width supported by GO operating with VHT support - * (VHT_CHANWIDTH_*). - * @group_ssid: Specific Group SSID for join or %NULL if not set - * @group_ssid_len: Length of @group_ssid in octets - * 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, unsigned int vht_center_freq2, - int persistent_id, int pd, int ht40, int vht, - unsigned int vht_chwidth, const u8 *group_ssid, - size_t group_ssid_len) -{ - 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->global->pending_p2ps_group_freq = 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; - wpa_s->p2p_go_vht_center_freq2 = vht_center_freq2; - wpa_s->p2p_go_max_oper_chwidth = vht_chwidth; - - if (pin) - os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin)); - else if (wps_method == WPS_PIN_DISPLAY) { - if (wps_generate_pin((unsigned int *) &ret) < 0) - return -1; - 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 if (wps_method == WPS_P2PS) { - /* Force the P2Ps default PIN to be used */ - os_strlcpy(wpa_s->p2p_pin, "12345670", sizeof(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, - group_ssid, group_ssid_len) < 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"); - return -1; - } - - if_addr = wpa_s->pending_interface_addr; - } else { - if (wpa_s->p2p_mgmt) - if_addr = wpa_s->parent->own_addr; - else - if_addr = wpa_s->own_addr; - os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN); - } - - if (auth) { - if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method, - go_intent, if_addr, - force_freq, persistent_group, ssid, - pref_freq) < 0) - return -1; - return ret; - } - - if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method, - go_intent, if_addr, force_freq, - persistent_group, ssid, pref_freq) < 0) { - if (wpa_s->create_p2p_iface) - wpas_p2p_remove_pending_group_interface(wpa_s); - return -1; - } - return ret; -} - - -/** - * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start - * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface() - * @freq: Frequency of the channel in MHz - * @duration: Duration of the stay on the channel in milliseconds - * - * This callback is called when the driver indicates that it has started the - * requested remain-on-channel duration. - */ -void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s, - unsigned int freq, unsigned int duration) -{ - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return; - wpa_printf(MSG_DEBUG, "P2P: remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d roc_waiting_drv_freq=%d freq=%u duration=%u)", - wpa_s->off_channel_freq, wpa_s->pending_listen_freq, - wpa_s->roc_waiting_drv_freq, freq, duration); - if (wpa_s->off_channel_freq && - wpa_s->off_channel_freq == wpa_s->pending_listen_freq) { - p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq, - wpa_s->pending_listen_duration); - wpa_s->pending_listen_freq = 0; - } else { - wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)", - wpa_s->off_channel_freq, wpa_s->pending_listen_freq, - freq, duration); - } -} - - -int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, unsigned int timeout) -{ - /* Limit maximum Listen state time based on driver limitation. */ - if (timeout > wpa_s->max_remain_on_chan) - timeout = wpa_s->max_remain_on_chan; - - return p2p_listen(wpa_s->global->p2p, timeout); -} - - -/** - * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout - * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface() - * @freq: Frequency of the channel in MHz - * - * This callback is called when the driver indicates that a remain-on-channel - * operation has been completed, i.e., the duration on the requested channel - * has timed out. - */ -void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s, - unsigned int freq) -{ - wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback " - "(p2p_long_listen=%d ms pending_action_tx=%p)", - wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s)); - wpas_p2p_listen_work_done(wpa_s); - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return; - if (wpa_s->p2p_long_listen > 0) - wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan; - if (p2p_listen_end(wpa_s->global->p2p, freq) > 0) - return; /* P2P module started a new operation */ - if (offchannel_pending_action_tx(wpa_s)) - return; - if (wpa_s->p2p_long_listen > 0) { - wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state"); - wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen); - } else { - /* - * When listen duration is over, stop listen & update p2p_state - * to IDLE. - */ - p2p_stop_listen(wpa_s->global->p2p); - } -} - - -/** - * wpas_p2p_group_remove - Remove a P2P group - * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface() - * @ifname: Network interface name of the group interface or "*" to remove all - * groups - * Returns: 0 on success, -1 on failure - * - * This function is used to remove a P2P group. This can be used to disconnect - * from a group in which the local end is a P2P Client or to end a P2P Group in - * case the local end is the Group Owner. If a virtual network interface was - * created for this group, that interface will be removed. Otherwise, only the - * configured P2P group network will be removed from the interface. - */ -int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname) -{ - struct wpa_global *global = wpa_s->global; - struct wpa_supplicant *calling_wpa_s = wpa_s; - - if (os_strcmp(ifname, "*") == 0) { - struct wpa_supplicant *prev; - wpa_s = global->ifaces; - while (wpa_s) { - prev = wpa_s; - wpa_s = wpa_s->next; - if (prev->p2p_group_interface != - NOT_P2P_GROUP_INTERFACE || - (prev->current_ssid && - prev->current_ssid->p2p_group)) - wpas_p2p_disconnect_safely(prev, calling_wpa_s); - } - return 0; - } - - for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { - if (os_strcmp(wpa_s->ifname, ifname) == 0) - break; - } - - return wpas_p2p_disconnect_safely(wpa_s, calling_wpa_s); -} - - -static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq) -{ - unsigned int r; - - if (!wpa_s->conf->num_p2p_pref_chan && !freq) { - unsigned int i, size = P2P_MAX_PREF_CHANNELS; - unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS]; - int res; - - res = wpa_drv_get_pref_freq_list(wpa_s, WPA_IF_P2P_GO, - &size, pref_freq_list); - if (!res && size > 0) { - i = 0; - while (wpas_p2p_disallowed_freq(wpa_s->global, - pref_freq_list[i]) && - i < size) { - wpa_printf(MSG_DEBUG, - "P2P: preferred_freq_list[%d]=%d is disallowed", - i, pref_freq_list[i]); - i++; - } - if (i != size) { - freq = pref_freq_list[i]; - wpa_printf(MSG_DEBUG, - "P2P: Using preferred_freq_list[%d]=%d", - i, freq); - } else { - wpa_printf(MSG_DEBUG, - "P2P: All driver preferred frequencies are disallowed for P2P use"); - } - } else { - wpa_printf(MSG_DEBUG, - "P2P: No preferred frequency list available"); - } - } - - if (freq == 2) { - wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz " - "band"); - if (wpa_s->best_24_freq > 0 && - p2p_supported_freq_go(wpa_s->global->p2p, - wpa_s->best_24_freq)) { - freq = wpa_s->best_24_freq; - wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band " - "channel: %d MHz", freq); - } else { - if (os_get_random((u8 *) &r, sizeof(r)) < 0) - return -1; - freq = 2412 + (r % 3) * 25; - wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band " - "channel: %d MHz", freq); - } - } - - if (freq == 5) { - wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz " - "band"); - if (wpa_s->best_5_freq > 0 && - p2p_supported_freq_go(wpa_s->global->p2p, - wpa_s->best_5_freq)) { - freq = wpa_s->best_5_freq; - wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band " - "channel: %d MHz", freq); - } else { - if (os_get_random((u8 *) &r, sizeof(r)) < 0) - return -1; - freq = 5180 + (r % 4) * 20; - if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) { - wpa_printf(MSG_DEBUG, "P2P: Could not select " - "5 GHz channel for P2P group"); - return -1; - } - wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band " - "channel: %d MHz", freq); - } - } - - if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) { - 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: " - "%s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded", - __func__, freq); - return freq; - } - wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO " - "(%u MHz) is not supported for P2P uses", - freq); - return -1; - } - - return freq; -} - - -static int wpas_p2p_supported_freq_go(struct wpa_supplicant *wpa_s, - const struct p2p_channels *channels, - int freq) -{ - if (!wpas_p2p_disallowed_freq(wpa_s->global, freq) && - p2p_supported_freq_go(wpa_s->global->p2p, freq) && - freq_included(wpa_s, channels, freq)) - return 1; - return 0; -} - - -static void wpas_p2p_select_go_freq_no_pref(struct wpa_supplicant *wpa_s, - struct p2p_go_neg_results *params, - const struct p2p_channels *channels) -{ - unsigned int i, r; - - /* first try some random selection of the social channels */ - if (os_get_random((u8 *) &r, sizeof(r)) < 0) - return; - - for (i = 0; i < 3; i++) { - params->freq = 2412 + ((r + i) % 3) * 25; - if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq)) - goto out; - } - - /* try all other channels in operating class 81 */ - for (i = 0; i < 11; i++) { - params->freq = 2412 + i * 5; - - /* skip social channels; covered in the previous loop */ - if (params->freq == 2412 || - params->freq == 2437 || - params->freq == 2462) - continue; - - if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq)) - goto out; - } - - /* try all channels in operating class 115 */ - for (i = 0; i < 4; i++) { - params->freq = 5180 + i * 20; - if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) && - freq_included(wpa_s, channels, params->freq) && - p2p_supported_freq(wpa_s->global->p2p, params->freq)) - goto out; - } - - /* try all channels in operating class 124 */ - for (i = 0; i < 4; i++) { - params->freq = 5745 + i * 20; - if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) && - freq_included(wpa_s, channels, params->freq) && - p2p_supported_freq(wpa_s->global->p2p, params->freq)) - goto out; - } - - /* try social channel class 180 channel 2 */ - params->freq = 58320 + 1 * 2160; - if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) && - freq_included(wpa_s, channels, params->freq) && - p2p_supported_freq(wpa_s->global->p2p, params->freq)) - goto out; - - /* try all channels in reg. class 180 */ - for (i = 0; i < 4; i++) { - params->freq = 58320 + i * 2160; - if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) && - freq_included(wpa_s, channels, params->freq) && - p2p_supported_freq(wpa_s->global->p2p, params->freq)) - goto out; - } - - params->freq = 0; - wpa_printf(MSG_DEBUG, "P2P: No 2.4, 5, or 60 GHz channel allowed"); - return; -out: - wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)", - params->freq); -} - - -static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s, - struct p2p_go_neg_results *params, - int freq, int vht_center_freq2, int ht40, - int vht, int max_oper_chwidth, - const struct p2p_channels *channels) -{ - struct wpa_used_freq_data *freqs; - unsigned int cand; - unsigned int num, i; - int ignore_no_freqs = 0; - int unused_channels = wpas_p2p_num_unused_channels(wpa_s) > 0; - - os_memset(params, 0, sizeof(*params)); - params->role_go = 1; - params->ht40 = ht40; - params->vht = vht; - params->max_oper_chwidth = max_oper_chwidth; - params->vht_center_freq2 = vht_center_freq2; - - freqs = os_calloc(wpa_s->num_multichan_concurrent, - sizeof(struct wpa_used_freq_data)); - if (!freqs) - return -1; - - num = get_shared_radio_freqs_data(wpa_s, freqs, - wpa_s->num_multichan_concurrent); - - if (wpa_s->current_ssid && - wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO && - wpa_s->wpa_state == WPA_COMPLETED) { - wpa_printf(MSG_DEBUG, "P2P: %s called for an active GO", - __func__); - - /* - * If the frequency selection is done for an active P2P GO that - * is not sharing a frequency, allow to select a new frequency - * even if there are no unused frequencies as we are about to - * move the P2P GO so its frequency can be re-used. - */ - for (i = 0; i < num; i++) { - if (freqs[i].freq == wpa_s->current_ssid->frequency && - freqs[i].flags == 0) { - ignore_no_freqs = 1; - break; - } - } - } - - /* try using the forced freq */ - if (freq) { - if (!wpas_p2p_supported_freq_go(wpa_s, channels, freq)) { - wpa_printf(MSG_DEBUG, - "P2P: Forced GO freq %d MHz not accepted", - freq); - goto fail; - } - - for (i = 0; i < num; i++) { - if (freqs[i].freq == freq) { - wpa_printf(MSG_DEBUG, - "P2P: forced freq (%d MHz) is also shared", - freq); - params->freq = freq; - goto success; - } - } - - if (!ignore_no_freqs && !unused_channels) { - wpa_printf(MSG_DEBUG, - "P2P: Cannot force GO on freq (%d MHz) as all the channels are in use", - freq); - goto fail; - } - - wpa_printf(MSG_DEBUG, - "P2P: force GO freq (%d MHz) on a free channel", - freq); - params->freq = freq; - goto success; - } - - /* consider using one of the shared frequencies */ - if (num && - (!wpa_s->conf->p2p_ignore_shared_freq || !unused_channels)) { - cand = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num); - if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) { - wpa_printf(MSG_DEBUG, - "P2P: Use shared freq (%d MHz) for GO", - cand); - params->freq = cand; - goto success; - } - - /* try using one of the shared freqs */ - for (i = 0; i < num; i++) { - if (wpas_p2p_supported_freq_go(wpa_s, channels, - freqs[i].freq)) { - wpa_printf(MSG_DEBUG, - "P2P: Use shared freq (%d MHz) for GO", - freqs[i].freq); - params->freq = freqs[i].freq; - goto success; - } - } - } - - if (!ignore_no_freqs && !unused_channels) { - wpa_printf(MSG_DEBUG, - "P2P: Cannot force GO on any of the channels we are already using"); - goto fail; - } - - /* try using the setting from the configuration file */ - if (wpa_s->conf->p2p_oper_reg_class == 81 && - wpa_s->conf->p2p_oper_channel >= 1 && - wpa_s->conf->p2p_oper_channel <= 11 && - wpas_p2p_supported_freq_go( - wpa_s, channels, - 2407 + 5 * wpa_s->conf->p2p_oper_channel)) { - params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel; - wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured " - "frequency %d MHz", params->freq); - goto success; - } - - if ((wpa_s->conf->p2p_oper_reg_class == 115 || - wpa_s->conf->p2p_oper_reg_class == 116 || - wpa_s->conf->p2p_oper_reg_class == 117 || - wpa_s->conf->p2p_oper_reg_class == 124 || - wpa_s->conf->p2p_oper_reg_class == 125 || - wpa_s->conf->p2p_oper_reg_class == 126 || - wpa_s->conf->p2p_oper_reg_class == 127) && - wpas_p2p_supported_freq_go(wpa_s, channels, - 5000 + - 5 * wpa_s->conf->p2p_oper_channel)) { - params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel; - wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured " - "frequency %d MHz", params->freq); - goto success; - } - - /* Try using best channels */ - if (wpa_s->conf->p2p_oper_channel == 0 && - wpa_s->best_overall_freq > 0 && - wpas_p2p_supported_freq_go(wpa_s, channels, - wpa_s->best_overall_freq)) { - params->freq = wpa_s->best_overall_freq; - wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall " - "channel %d MHz", params->freq); - goto success; - } - - if (wpa_s->conf->p2p_oper_channel == 0 && - wpa_s->best_24_freq > 0 && - wpas_p2p_supported_freq_go(wpa_s, channels, - wpa_s->best_24_freq)) { - params->freq = wpa_s->best_24_freq; - wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz " - "channel %d MHz", params->freq); - goto success; - } - - if (wpa_s->conf->p2p_oper_channel == 0 && - wpa_s->best_5_freq > 0 && - wpas_p2p_supported_freq_go(wpa_s, channels, - wpa_s->best_5_freq)) { - params->freq = wpa_s->best_5_freq; - wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz " - "channel %d MHz", params->freq); - goto success; - } - - /* try using preferred channels */ - cand = p2p_get_pref_freq(wpa_s->global->p2p, channels); - if (cand && wpas_p2p_supported_freq_go(wpa_s, channels, cand)) { - params->freq = cand; - wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred " - "channels", params->freq); - goto success; - } - - /* Try using one of the group common freqs */ - if (wpa_s->p2p_group_common_freqs) { - for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) { - cand = wpa_s->p2p_group_common_freqs[i]; - if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) { - params->freq = cand; - wpa_printf(MSG_DEBUG, - "P2P: Use freq %d MHz common with the peer", - params->freq); - goto success; - } - } - } - - /* no preference, select some channel */ - wpas_p2p_select_go_freq_no_pref(wpa_s, params, channels); - - if (params->freq == 0) { - wpa_printf(MSG_DEBUG, "P2P: did not find a freq for GO use"); - goto fail; - } - -success: - os_free(freqs); - return 0; -fail: - os_free(freqs); - return -1; -} - - -static struct wpa_supplicant * -wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated, - int go) -{ - struct wpa_supplicant *group_wpa_s; - - if (!wpas_p2p_create_iface(wpa_s)) { - if (wpa_s->p2p_mgmt) { - /* - * We may be called on the p2p_dev interface which - * cannot be used for group operations, so always use - * the primary interface. - */ - wpa_s->parent->p2pdev = wpa_s; - wpa_s = wpa_s->parent; - } - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P: Use primary interface for group operations"); - wpa_s->p2p_first_connection_timeout = 0; - if (wpa_s != wpa_s->p2pdev) - wpas_p2p_clone_config(wpa_s, wpa_s->p2pdev); - return wpa_s; - } - - if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO : - WPA_IF_P2P_CLIENT) < 0) { - wpa_msg_global(wpa_s, MSG_ERROR, - "P2P: Failed to add group interface"); - return NULL; - } - group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go); - if (group_wpa_s == NULL) { - wpa_msg_global(wpa_s, MSG_ERROR, - "P2P: Failed to initialize group interface"); - wpas_p2p_remove_pending_group_interface(wpa_s); - return NULL; - } - - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s", - group_wpa_s->ifname); - group_wpa_s->p2p_first_connection_timeout = 0; - return group_wpa_s; -} - - -/** - * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner - * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface() - * @persistent_group: Whether to create a persistent group - * @freq: Frequency for the group or 0 to indicate no hardcoding - * @vht_center_freq2: segment_1 center frequency for GO operating in VHT 80P80 - * @ht40: Start GO with 40 MHz channel width - * @vht: Start GO with VHT support - * @vht_chwidth: channel bandwidth for GO operating with VHT support - * Returns: 0 on success, -1 on failure - * - * This function creates a new P2P group with the local end as the Group Owner, - * i.e., without using Group Owner Negotiation. - */ -int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group, - int freq, int vht_center_freq2, int ht40, int vht, - int max_oper_chwidth) -{ - struct p2p_go_neg_results params; - - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return -1; - - os_free(wpa_s->global->add_psk); - wpa_s->global->add_psk = NULL; - - /* Make sure we are not running find during connection establishment */ - wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND"); - wpas_p2p_stop_find_oper(wpa_s); - - freq = wpas_p2p_select_go_freq(wpa_s, freq); - if (freq < 0) - return -1; - - if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, vht_center_freq2, - ht40, vht, max_oper_chwidth, NULL)) - return -1; - if (params.freq && - !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) { - if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) && - ieee80211_is_dfs(params.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: %s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to driver", - __func__, params.freq); - } else { - wpa_printf(MSG_DEBUG, - "P2P: The selected channel for GO (%u MHz) is not supported for P2P uses", - params.freq); - return -1; - } - } - p2p_go_params(wpa_s->global->p2p, ¶ms); - params.persistent_group = persistent_group; - - wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1); - if (wpa_s == NULL) - return -1; - wpas_start_wps_go(wpa_s, ¶ms, 0); - - return 0; -} - - -static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s, - struct wpa_ssid *params, int addr_allocated, - int freq, int force_scan) -{ - struct wpa_ssid *ssid; - - wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0); - if (wpa_s == NULL) - return -1; - if (force_scan) - os_get_reltime(&wpa_s->scan_min_time); - wpa_s->p2p_last_4way_hs_fail = NULL; - - wpa_supplicant_ap_deinit(wpa_s); - - ssid = wpa_config_add_network(wpa_s->conf); - if (ssid == NULL) - return -1; - os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN); - wpa_config_set_network_defaults(ssid); - ssid->temporary = 1; - ssid->proto = WPA_PROTO_RSN; - ssid->pbss = params->pbss; - ssid->pairwise_cipher = params->pbss ? WPA_CIPHER_GCMP : - WPA_CIPHER_CCMP; - ssid->group_cipher = params->pbss ? WPA_CIPHER_GCMP : WPA_CIPHER_CCMP; - ssid->key_mgmt = WPA_KEY_MGMT_PSK; - ssid->ssid = os_malloc(params->ssid_len); - if (ssid->ssid == NULL) { - wpa_config_remove_network(wpa_s->conf, ssid->id); - return -1; - } - os_memcpy(ssid->ssid, params->ssid, params->ssid_len); - ssid->ssid_len = params->ssid_len; - ssid->p2p_group = 1; - ssid->export_keys = 1; - if (params->psk_set) { - os_memcpy(ssid->psk, params->psk, 32); - ssid->psk_set = 1; - } - if (params->passphrase) - ssid->passphrase = os_strdup(params->passphrase); - - wpa_s->show_group_started = 1; - wpa_s->p2p_in_invitation = 1; - wpa_s->p2p_invite_go_freq = freq; - 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->p2pdev, - NULL); - eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0, - wpas_p2p_group_formation_timeout, - wpa_s->p2pdev, NULL); - wpa_supplicant_select_network(wpa_s, ssid); - - return 0; -} - - -int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s, - struct wpa_ssid *ssid, int addr_allocated, - int force_freq, int neg_freq, - int vht_center_freq2, int ht40, - int vht, int max_oper_chwidth, - const struct p2p_channels *channels, - int connection_timeout, int force_scan) -{ - struct p2p_go_neg_results params; - int go = 0, freq; - - if (ssid->disabled != 2 || ssid->ssid == NULL) - return -1; - - if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) && - go == (ssid->mode == WPAS_MODE_P2P_GO)) { - wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is " - "already running"); - if (go == 0 && - eloop_cancel_timeout(wpas_p2p_group_formation_timeout, - wpa_s->p2pdev, NULL)) { - /* - * This can happen if Invitation Response frame was lost - * and the peer (GO of a persistent group) tries to - * invite us again. Reschedule the timeout to avoid - * terminating the wait for the connection too early - * since we now know that the peer is still trying to - * invite us instead of having already started the GO. - */ - wpa_printf(MSG_DEBUG, - "P2P: Reschedule group formation timeout since peer is still trying to invite us"); - eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0, - wpas_p2p_group_formation_timeout, - wpa_s->p2pdev, NULL); - } - return 0; - } - - os_free(wpa_s->global->add_psk); - wpa_s->global->add_psk = NULL; - - /* Make sure we are not running find during connection establishment */ - wpas_p2p_stop_find_oper(wpa_s); - - wpa_s->p2p_fallback_to_go_neg = 0; - - if (ssid->mode == WPAS_MODE_P2P_GO) { - if (force_freq > 0) { - freq = wpas_p2p_select_go_freq(wpa_s, force_freq); - if (freq < 0) - return -1; - } else { - freq = wpas_p2p_select_go_freq(wpa_s, neg_freq); - if (freq < 0 || - (freq > 0 && !freq_included(wpa_s, channels, freq))) - freq = 0; - } - } else if (ssid->mode == WPAS_MODE_INFRA) { - freq = neg_freq; - if (freq <= 0 || !freq_included(wpa_s, channels, freq)) { - struct os_reltime now; - struct wpa_bss *bss = - wpa_bss_get_p2p_dev_addr(wpa_s, ssid->bssid); - - os_get_reltime(&now); - if (bss && - !os_reltime_expired(&now, &bss->last_update, 5) && - freq_included(wpa_s, channels, bss->freq)) - freq = bss->freq; - else - freq = 0; - } - - return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq, - force_scan); - } else { - return -1; - } - - if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, vht_center_freq2, - ht40, vht, max_oper_chwidth, channels)) - return -1; - - params.role_go = 1; - params.psk_set = ssid->psk_set; - if (params.psk_set) - os_memcpy(params.psk, ssid->psk, sizeof(params.psk)); - if (ssid->passphrase) { - if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) { - wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in " - "persistent group"); - return -1; - } - os_strlcpy(params.passphrase, ssid->passphrase, - sizeof(params.passphrase)); - } - os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len); - params.ssid_len = ssid->ssid_len; - params.persistent_group = 1; - - wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1); - if (wpa_s == NULL) - return -1; - - p2p_channels_to_freqs(channels, params.freq_list, P2P_MAX_CHANNELS); - - wpa_s->p2p_first_connection_timeout = connection_timeout; - wpas_start_wps_go(wpa_s, ¶ms, 0); - - return 0; -} - - -static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies, - struct wpabuf *proberesp_ies) -{ - struct wpa_supplicant *wpa_s = ctx; - if (wpa_s->ap_iface) { - struct hostapd_data *hapd = wpa_s->ap_iface->bss[0]; - if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) { - wpabuf_free(beacon_ies); - wpabuf_free(proberesp_ies); - return; - } - if (beacon_ies) { - wpabuf_free(hapd->p2p_beacon_ie); - hapd->p2p_beacon_ie = beacon_ies; - } - wpabuf_free(hapd->p2p_probe_resp_ie); - hapd->p2p_probe_resp_ie = proberesp_ies; - } else { - wpabuf_free(beacon_ies); - wpabuf_free(proberesp_ies); - } - wpa_supplicant_ap_update_beacon(wpa_s); -} - - -static void wpas_p2p_idle_update(void *ctx, int idle) -{ - struct wpa_supplicant *wpa_s = ctx; - if (!wpa_s->ap_iface) - return; - wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not "); - if (idle) { - if (wpa_s->global->p2p_fail_on_wps_complete && - wpa_s->p2p_in_provisioning) { - wpas_p2p_grpform_fail_after_wps(wpa_s); - return; - } - wpas_p2p_set_group_idle_timeout(wpa_s); - } else - eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL); -} - - -struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s, - struct wpa_ssid *ssid) -{ - struct p2p_group *group; - struct p2p_group_config *cfg; - - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL || - !ssid->p2p_group) - return NULL; - - cfg = os_zalloc(sizeof(*cfg)); - if (cfg == NULL) - return NULL; - - if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect) - cfg->persistent_group = 2; - else if (ssid->p2p_persistent_group) - cfg->persistent_group = 1; - os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN); - if (wpa_s->max_stations && - wpa_s->max_stations < wpa_s->conf->max_num_sta) - cfg->max_clients = wpa_s->max_stations; - else - cfg->max_clients = wpa_s->conf->max_num_sta; - os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len); - cfg->ssid_len = ssid->ssid_len; - cfg->freq = ssid->frequency; - cfg->cb_ctx = wpa_s; - cfg->ie_update = wpas_p2p_ie_update; - cfg->idle_update = wpas_p2p_idle_update; - cfg->ip_addr_alloc = WPA_GET_BE32(wpa_s->p2pdev->conf->ip_addr_start) - != 0; - - group = p2p_group_init(wpa_s->global->p2p, cfg); - if (group == NULL) - os_free(cfg); - if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) - p2p_group_notif_formation_done(group); - wpa_s->p2p_group = group; - return group; -} - - -void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr, - int registrar) -{ - struct wpa_ssid *ssid = wpa_s->current_ssid; - - if (!wpa_s->p2p_in_provisioning) { - wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P " - "provisioning not in progress"); - return; - } - - if (ssid && ssid->mode == WPAS_MODE_INFRA) { - u8 go_dev_addr[ETH_ALEN]; - os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN); - wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid, - ssid->ssid_len); - /* Clear any stored provisioning info */ - p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr); - } - - eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->p2pdev, - NULL); - wpa_s->p2p_go_group_formation_completed = 1; - if (ssid && ssid->mode == WPAS_MODE_INFRA) { - /* - * Use a separate timeout for initial data connection to - * complete to allow the group to be removed automatically if - * something goes wrong in this step before the P2P group idle - * timeout mechanism is taken into use. - */ - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P: Re-start group formation timeout (%d seconds) as client for initial connection", - P2P_MAX_INITIAL_CONN_WAIT); - eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0, - wpas_p2p_group_formation_timeout, - wpa_s->p2pdev, NULL); - /* Complete group formation on successful data connection. */ - wpa_s->p2p_go_group_formation_completed = 0; - } else if (ssid) { - /* - * Use a separate timeout for initial data connection to - * complete to allow the group to be removed automatically if - * the client does not complete data connection successfully. - */ - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection", - P2P_MAX_INITIAL_CONN_WAIT_GO); - eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0, - wpas_p2p_group_formation_timeout, - wpa_s->p2pdev, NULL); - /* - * Complete group formation on first successful data connection - */ - wpa_s->p2p_go_group_formation_completed = 0; - } - if (wpa_s->global->p2p) - p2p_wps_success_cb(wpa_s->global->p2p, peer_addr); - wpas_group_formation_completed(wpa_s, 1, 0); -} - - -void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s, - struct wps_event_fail *fail) -{ - if (!wpa_s->p2p_in_provisioning) { - wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P " - "provisioning not in progress"); - return; - } - - if (wpa_s->go_params) { - p2p_clear_provisioning_info( - wpa_s->global->p2p, - wpa_s->go_params->peer_device_addr); - } - - wpas_notify_p2p_wps_failed(wpa_s, fail); - - if (wpa_s == wpa_s->global->p2p_group_formation) { - /* - * Allow some time for the failed WPS negotiation exchange to - * complete, but remove the group since group formation cannot - * succeed after provisioning failure. - */ - wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout"); - wpa_s->global->p2p_fail_on_wps_complete = 1; - eloop_deplete_timeout(0, 50000, - wpas_p2p_group_formation_timeout, - wpa_s->p2pdev, NULL); - } -} - - -int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s) -{ - if (!wpa_s->global->p2p_fail_on_wps_complete || - !wpa_s->p2p_in_provisioning) - return 0; - - wpas_p2p_grpform_fail_after_wps(wpa_s); - - return 1; -} - - -int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr, - const char *config_method, - enum wpas_p2p_prov_disc_use use, - struct p2ps_provision *p2ps_prov) -{ - u16 config_methods; - - wpa_s->global->pending_p2ps_group = 0; - wpa_s->global->pending_p2ps_group_freq = 0; - wpa_s->p2p_fallback_to_go_neg = 0; - wpa_s->pending_pd_use = NORMAL_PD; - if (p2ps_prov && use == WPAS_P2P_PD_FOR_ASP) { - p2ps_prov->conncap = p2ps_group_capability( - wpa_s, P2PS_SETUP_NONE, p2ps_prov->role, - &p2ps_prov->force_freq, &p2ps_prov->pref_freq); - - wpa_printf(MSG_DEBUG, - "P2P: %s conncap: %d - ASP parsed: %x %x %d %s", - __func__, p2ps_prov->conncap, - p2ps_prov->adv_id, p2ps_prov->conncap, - p2ps_prov->status, p2ps_prov->info); - - config_methods = 0; - } else if (os_strncmp(config_method, "display", 7) == 0) - config_methods = WPS_CONFIG_DISPLAY; - else if (os_strncmp(config_method, "keypad", 6) == 0) - config_methods = WPS_CONFIG_KEYPAD; - else if (os_strncmp(config_method, "pbc", 3) == 0 || - os_strncmp(config_method, "pushbutton", 10) == 0) - config_methods = WPS_CONFIG_PUSHBUTTON; - else { - wpa_printf(MSG_DEBUG, "P2P: Unknown config method"); - os_free(p2ps_prov); - return -1; - } - - if (use == WPAS_P2P_PD_AUTO) { - os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN); - wpa_s->pending_pd_config_methods = config_methods; - wpa_s->p2p_auto_pd = 1; - wpa_s->p2p_auto_join = 0; - wpa_s->pending_pd_before_join = 0; - wpa_s->auto_pd_scan_retry = 0; - wpas_p2p_stop_find(wpa_s); - wpa_s->p2p_join_scan_count = 0; - os_get_reltime(&wpa_s->p2p_auto_started); - wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld", - wpa_s->p2p_auto_started.sec, - wpa_s->p2p_auto_started.usec); - wpas_p2p_join_scan(wpa_s, NULL); - return 0; - } - - if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) { - os_free(p2ps_prov); - return -1; - } - - return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, p2ps_prov, - config_methods, use == WPAS_P2P_PD_FOR_JOIN, - 0, 1); -} - - -int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, - char *end) -{ - return p2p_scan_result_text(ies, ies_len, buf, end); -} - - -static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s) -{ - if (!offchannel_pending_action_tx(wpa_s)) - return; - - if (wpa_s->p2p_send_action_work) { - wpas_p2p_free_send_action_work(wpa_s); - eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, - wpa_s, NULL); - offchannel_send_action_done(wpa_s); - } - - wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new " - "operation request"); - offchannel_clear_pending_action_tx(wpa_s); -} - - -int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout, - enum p2p_discovery_type type, - unsigned int num_req_dev_types, const u8 *req_dev_types, - const u8 *dev_id, unsigned int search_delay, - u8 seek_cnt, const char **seek_string, int freq) -{ - wpas_p2p_clear_pending_action_tx(wpa_s); - wpa_s->p2p_long_listen = 0; - - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL || - wpa_s->p2p_in_provisioning) - return -1; - - wpa_supplicant_cancel_sched_scan(wpa_s); - - return p2p_find(wpa_s->global->p2p, timeout, type, - num_req_dev_types, req_dev_types, dev_id, - search_delay, seek_cnt, seek_string, freq); -} - - -static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant *wpa_s, - struct wpa_scan_results *scan_res) -{ - wpa_printf(MSG_DEBUG, "P2P: Ignore scan results"); - - if (wpa_s->p2p_scan_work) { - struct wpa_radio_work *work = wpa_s->p2p_scan_work; - wpa_s->p2p_scan_work = NULL; - radio_work_done(work); - } - - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return; - - /* - * Indicate that results have been processed so that the P2P module can - * continue pending tasks. - */ - p2p_scan_res_handled(wpa_s->global->p2p); -} - - -static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s) -{ - wpas_p2p_clear_pending_action_tx(wpa_s); - wpa_s->p2p_long_listen = 0; - eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL); - eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL); - - if (wpa_s->global->p2p) - p2p_stop_find(wpa_s->global->p2p); - - if (wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) { - wpa_printf(MSG_DEBUG, - "P2P: Do not consider the scan results after stop_find"); - wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore_search; - } -} - - -void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s) -{ - wpas_p2p_stop_find_oper(wpa_s); - if (!wpa_s->global->pending_group_iface_for_p2ps) - wpas_p2p_remove_pending_group_interface(wpa_s); -} - - -static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx) -{ - struct wpa_supplicant *wpa_s = eloop_ctx; - wpa_s->p2p_long_listen = 0; -} - - -int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout) -{ - int res; - - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return -1; - - if (wpa_s->p2p_lo_started) { - wpa_printf(MSG_DEBUG, - "P2P: Cannot start P2P listen, it is offloaded"); - return -1; - } - - wpa_supplicant_cancel_sched_scan(wpa_s); - wpas_p2p_clear_pending_action_tx(wpa_s); - - if (timeout == 0) { - /* - * This is a request for unlimited Listen state. However, at - * least for now, this is mapped to a Listen state for one - * hour. - */ - timeout = 3600; - } - eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL); - wpa_s->p2p_long_listen = 0; - - /* - * Stop previous find/listen operation to avoid trying to request a new - * remain-on-channel operation while the driver is still running the - * previous one. - */ - if (wpa_s->global->p2p) - p2p_stop_find(wpa_s->global->p2p); - - res = wpas_p2p_listen_start(wpa_s, timeout * 1000); - if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) { - wpa_s->p2p_long_listen = timeout * 1000; - eloop_register_timeout(timeout, 0, - wpas_p2p_long_listen_timeout, - wpa_s, NULL); - } - - return res; -} - - -int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss, - u8 *buf, size_t len, int p2p_group) -{ - struct wpabuf *p2p_ie; - int ret; - - if (wpa_s->global->p2p_disabled) - return -1; - /* - * Advertize mandatory cross connection capability even on - * p2p_disabled=1 interface when associating with a P2P Manager WLAN AP. - */ - if (wpa_s->conf->p2p_disabled && p2p_group) - return -1; - if (wpa_s->global->p2p == NULL) - return -1; - if (bss == NULL) - return -1; - - p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE); - ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len, - p2p_group, p2p_ie); - wpabuf_free(p2p_ie); - - return ret; -} - - -int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr, - const u8 *dst, const u8 *bssid, - const u8 *ie, size_t ie_len, - unsigned int rx_freq, int ssi_signal) -{ - if (wpa_s->global->p2p_disabled) - return 0; - if (wpa_s->global->p2p == NULL) - return 0; - - switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid, - ie, ie_len, rx_freq, wpa_s->p2p_lo_started)) { - case P2P_PREQ_NOT_P2P: - wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len, - ssi_signal); - /* fall through */ - case P2P_PREQ_MALFORMED: - case P2P_PREQ_NOT_LISTEN: - case P2P_PREQ_NOT_PROCESSED: - default: /* make gcc happy */ - return 0; - case P2P_PREQ_PROCESSED: - return 1; - } -} - - -void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da, - const u8 *sa, const u8 *bssid, - u8 category, const u8 *data, size_t len, int freq) -{ - if (wpa_s->global->p2p_disabled) - return; - if (wpa_s->global->p2p == NULL) - return; - - p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len, - freq); -} - - -void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies) -{ - unsigned int bands; - - if (wpa_s->global->p2p_disabled) - return; - if (wpa_s->global->p2p == NULL) - return; - - bands = wpas_get_bands(wpa_s, NULL); - p2p_scan_ie(wpa_s->global->p2p, ies, NULL, bands); -} - - -static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s) -{ - p2p_group_deinit(wpa_s->p2p_group); - wpa_s->p2p_group = NULL; - - wpa_s->ap_configured_cb = NULL; - wpa_s->ap_configured_cb_ctx = NULL; - wpa_s->ap_configured_cb_data = NULL; - wpa_s->connect_without_scan = NULL; -} - - -int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr) -{ - wpa_s->p2p_long_listen = 0; - - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return -1; - - return p2p_reject(wpa_s->global->p2p, addr); -} - - -/* Invite to reinvoke a persistent group */ -int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr, - struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq, - int vht_center_freq2, int ht40, int vht, int max_chwidth, - int pref_freq) -{ - enum p2p_invite_role role; - u8 *bssid = NULL; - int force_freq = 0; - int res; - int no_pref_freq_given = pref_freq == 0; - unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size; - - wpa_s->global->p2p_invite_group = NULL; - if (peer_addr) - os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN); - else - os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN); - - wpa_s->p2p_persistent_go_freq = freq; - wpa_s->p2p_go_ht40 = !!ht40; - wpa_s->p2p_go_vht = !!vht; - wpa_s->p2p_go_max_oper_chwidth = max_chwidth; - wpa_s->p2p_go_vht_center_freq2 = vht_center_freq2; - if (ssid->mode == WPAS_MODE_P2P_GO) { - role = P2P_INVITE_ROLE_GO; - if (peer_addr == NULL) { - wpa_printf(MSG_DEBUG, "P2P: Missing peer " - "address in invitation command"); - return -1; - } - if (wpas_p2p_create_iface(wpa_s)) { - if (wpas_p2p_add_group_interface(wpa_s, - WPA_IF_P2P_GO) < 0) { - wpa_printf(MSG_ERROR, "P2P: Failed to " - "allocate a new interface for the " - "group"); - return -1; - } - bssid = wpa_s->pending_interface_addr; - } else if (wpa_s->p2p_mgmt) - bssid = wpa_s->parent->own_addr; - else - bssid = wpa_s->own_addr; - } else { - role = P2P_INVITE_ROLE_CLIENT; - peer_addr = ssid->bssid; - } - wpa_s->pending_invite_ssid_id = ssid->id; - - size = P2P_MAX_PREF_CHANNELS; - res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq, - role == P2P_INVITE_ROLE_GO, - pref_freq_list, &size); - if (res) - return res; - - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return -1; - - p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size); - - if (wpa_s->parent->conf->p2p_ignore_shared_freq && - no_pref_freq_given && pref_freq > 0 && - wpa_s->num_multichan_concurrent > 1 && - wpas_p2p_num_unused_channels(wpa_s) > 0) { - wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration", - pref_freq); - pref_freq = 0; - } - - /* - * Stop any find/listen operations before invitation and possibly - * connection establishment. - */ - wpas_p2p_stop_find_oper(wpa_s); - - return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid, - ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr, - 1, pref_freq, -1); -} - - -/* Invite to join an active group */ -int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname, - const u8 *peer_addr, const u8 *go_dev_addr) -{ - struct wpa_global *global = wpa_s->global; - enum p2p_invite_role role; - u8 *bssid = NULL; - struct wpa_ssid *ssid; - int persistent; - int freq = 0, force_freq = 0, pref_freq = 0; - int res; - unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size; - - wpa_s->p2p_persistent_go_freq = 0; - wpa_s->p2p_go_ht40 = 0; - wpa_s->p2p_go_vht = 0; - wpa_s->p2p_go_vht_center_freq2 = 0; - wpa_s->p2p_go_max_oper_chwidth = 0; - - for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { - if (os_strcmp(wpa_s->ifname, ifname) == 0) - break; - } - if (wpa_s == NULL) { - wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname); - return -1; - } - - ssid = wpa_s->current_ssid; - if (ssid == NULL) { - wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for " - "invitation"); - return -1; - } - - wpa_s->global->p2p_invite_group = wpa_s; - persistent = ssid->p2p_persistent_group && - wpas_p2p_get_persistent(wpa_s->p2pdev, peer_addr, - ssid->ssid, ssid->ssid_len); - - if (ssid->mode == WPAS_MODE_P2P_GO) { - role = P2P_INVITE_ROLE_ACTIVE_GO; - bssid = wpa_s->own_addr; - if (go_dev_addr == NULL) - go_dev_addr = wpa_s->global->p2p_dev_addr; - freq = ssid->frequency; - } else { - role = P2P_INVITE_ROLE_CLIENT; - if (wpa_s->wpa_state < WPA_ASSOCIATED) { - wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot " - "invite to current group"); - return -1; - } - bssid = wpa_s->bssid; - if (go_dev_addr == NULL && - !is_zero_ether_addr(wpa_s->go_dev_addr)) - go_dev_addr = wpa_s->go_dev_addr; - freq = wpa_s->current_bss ? wpa_s->current_bss->freq : - (int) wpa_s->assoc_freq; - } - wpa_s->p2pdev->pending_invite_ssid_id = -1; - - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return -1; - - size = P2P_MAX_PREF_CHANNELS; - res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq, - role == P2P_INVITE_ROLE_ACTIVE_GO, - pref_freq_list, &size); - if (res) - return res; - wpas_p2p_set_own_freq_preference(wpa_s, force_freq); - - return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid, - ssid->ssid, ssid->ssid_len, force_freq, - go_dev_addr, persistent, pref_freq, -1); -} - - -void wpas_p2p_completed(struct wpa_supplicant *wpa_s) -{ - struct wpa_ssid *ssid = wpa_s->current_ssid; - u8 go_dev_addr[ETH_ALEN]; - int persistent; - int freq; - u8 ip[3 * 4]; - char ip_addr[100]; - - if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) { - eloop_cancel_timeout(wpas_p2p_group_formation_timeout, - wpa_s->p2pdev, NULL); - } - - if (!wpa_s->show_group_started || !ssid) - return; - - wpa_s->show_group_started = 0; - if (!wpa_s->p2p_go_group_formation_completed && - wpa_s->global->p2p_group_formation == wpa_s) { - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P: Marking group formation completed on client on data connection"); - wpa_s->p2p_go_group_formation_completed = 1; - wpa_s->global->p2p_group_formation = NULL; - wpa_s->p2p_in_provisioning = 0; - wpa_s->p2p_in_invitation = 0; - } - - os_memset(go_dev_addr, 0, ETH_ALEN); - if (ssid->bssid_set) - os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN); - persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid, - ssid->ssid_len); - os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN); - - if (wpa_s->global->p2p_group_formation == wpa_s) - wpa_s->global->p2p_group_formation = NULL; - - freq = wpa_s->current_bss ? wpa_s->current_bss->freq : - (int) wpa_s->assoc_freq; - - ip_addr[0] = '\0'; - if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) { - int res; - - res = os_snprintf(ip_addr, sizeof(ip_addr), - " ip_addr=%u.%u.%u.%u " - "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u", - ip[0], ip[1], ip[2], ip[3], - ip[4], ip[5], ip[6], ip[7], - ip[8], ip[9], ip[10], ip[11]); - if (os_snprintf_error(sizeof(ip_addr), res)) - ip_addr[0] = '\0'; - } - - wpas_p2p_group_started(wpa_s, 0, ssid, freq, - ssid->passphrase == NULL && ssid->psk_set ? - ssid->psk : NULL, - ssid->passphrase, go_dev_addr, persistent, - ip_addr); - - if (persistent) - wpas_p2p_store_persistent_group(wpa_s->p2pdev, - ssid, go_dev_addr); - - wpas_notify_p2p_group_started(wpa_s, ssid, persistent, 1); -} - - -int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1, - u32 interval1, u32 duration2, u32 interval2) -{ - int ret; - - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return -1; - - if (wpa_s->wpa_state < WPA_ASSOCIATED || - wpa_s->current_ssid == NULL || - wpa_s->current_ssid->mode != WPAS_MODE_INFRA) - return -1; - - ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid, - wpa_s->own_addr, wpa_s->assoc_freq, - duration1, interval1, duration2, interval2); - if (ret == 0) - wpa_s->waiting_presence_resp = 1; - - return ret; -} - - -int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period, - unsigned int interval) -{ - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return -1; - - return p2p_ext_listen(wpa_s->global->p2p, period, interval); -} - - -static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s) -{ - if (wpa_s->current_ssid == NULL) { - /* - * current_ssid can be cleared when P2P client interface gets - * disconnected, so assume this interface was used as P2P - * client. - */ - return 1; - } - return wpa_s->current_ssid->p2p_group && - wpa_s->current_ssid->mode == WPAS_MODE_INFRA; -} - - -static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx) -{ - struct wpa_supplicant *wpa_s = eloop_ctx; - - if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) { - wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - " - "disabled"); - return; - } - - wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate " - "group"); - wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT); -} - - -static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s) -{ - int timeout; - - if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0) - wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout"); - - if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group) - return; - - timeout = wpa_s->conf->p2p_group_idle; - if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA && - (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE)) - timeout = P2P_MAX_CLIENT_IDLE; - - if (timeout == 0) - return; - - if (timeout < 0) { - if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA) - timeout = 0; /* special client mode no-timeout */ - else - return; - } - - if (wpa_s->p2p_in_provisioning) { - /* - * Use the normal group formation timeout during the - * provisioning phase to avoid terminating this process too - * early due to group idle timeout. - */ - wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout " - "during provisioning"); - return; - } - - if (wpa_s->show_group_started) { - /* - * Use the normal group formation timeout between the end of - * the provisioning phase and completion of 4-way handshake to - * avoid terminating this process too early due to group idle - * timeout. - */ - wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout " - "while waiting for initial 4-way handshake to " - "complete"); - return; - } - - wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds", - timeout); - eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout, - wpa_s, NULL); -} - - -/* Returns 1 if the interface was removed */ -int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid, - u16 reason_code, const u8 *ie, size_t ie_len, - int locally_generated) -{ - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return 0; - - if (!locally_generated) - p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie, - ie_len); - - if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated && - wpa_s->current_ssid && - wpa_s->current_ssid->p2p_group && - wpa_s->current_ssid->mode == WPAS_MODE_INFRA) { - wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group " - "session is ending"); - if (wpas_p2p_group_delete(wpa_s, - P2P_GROUP_REMOVAL_GO_ENDING_SESSION) - > 0) - return 1; - } - - return 0; -} - - -void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid, - u16 reason_code, const u8 *ie, size_t ie_len, - int locally_generated) -{ - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return; - - if (!locally_generated) - p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie, - ie_len); -} - - -void wpas_p2p_update_config(struct wpa_supplicant *wpa_s) -{ - struct p2p_data *p2p = wpa_s->global->p2p; - - if (p2p == NULL) - return; - - if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)) - return; - - if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME) - p2p_set_dev_name(p2p, wpa_s->conf->device_name); - - if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE) - p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type); - - if (wpa_s->wps && - (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS)) - p2p_set_config_methods(p2p, wpa_s->wps->config_methods); - - if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID)) - p2p_set_uuid(p2p, wpa_s->wps->uuid); - - if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) { - p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer); - p2p_set_model_name(p2p, wpa_s->conf->model_name); - p2p_set_model_number(p2p, wpa_s->conf->model_number); - p2p_set_serial_number(p2p, wpa_s->conf->serial_number); - } - - if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) - p2p_set_sec_dev_types(p2p, - (void *) wpa_s->conf->sec_device_type, - wpa_s->conf->num_sec_device_types); - - if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) { - int i; - p2p_remove_wps_vendor_extensions(p2p); - for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) { - if (wpa_s->conf->wps_vendor_ext[i] == NULL) - continue; - p2p_add_wps_vendor_extension( - p2p, wpa_s->conf->wps_vendor_ext[i]); - } - } - - if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) && - wpa_s->conf->country[0] && wpa_s->conf->country[1]) { - char country[3]; - country[0] = wpa_s->conf->country[0]; - country[1] = wpa_s->conf->country[1]; - country[2] = 0x04; - p2p_set_country(p2p, country); - } - - if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) { - p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix, - wpa_s->conf->p2p_ssid_postfix ? - os_strlen(wpa_s->conf->p2p_ssid_postfix) : - 0); - } - - if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS) - p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss); - - if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) { - u8 reg_class, channel; - int ret; - unsigned int r; - u8 channel_forced; - - if (wpa_s->conf->p2p_listen_reg_class && - wpa_s->conf->p2p_listen_channel) { - reg_class = wpa_s->conf->p2p_listen_reg_class; - channel = wpa_s->conf->p2p_listen_channel; - channel_forced = 1; - } else { - reg_class = 81; - /* - * Pick one of the social channels randomly as the - * listen channel. - */ - if (os_get_random((u8 *) &r, sizeof(r)) < 0) - channel = 1; - else - channel = 1 + (r % 3) * 5; - channel_forced = 0; - } - ret = p2p_set_listen_channel(p2p, reg_class, channel, - channel_forced); - if (ret) - wpa_printf(MSG_ERROR, "P2P: Own listen channel update " - "failed: %d", ret); - } - if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) { - u8 op_reg_class, op_channel, cfg_op_channel; - int ret = 0; - unsigned int r; - if (wpa_s->conf->p2p_oper_reg_class && - wpa_s->conf->p2p_oper_channel) { - op_reg_class = wpa_s->conf->p2p_oper_reg_class; - op_channel = wpa_s->conf->p2p_oper_channel; - cfg_op_channel = 1; - } else { - op_reg_class = 81; - /* - * Use random operation channel from (1, 6, 11) - *if no other preference is indicated. - */ - if (os_get_random((u8 *) &r, sizeof(r)) < 0) - op_channel = 1; - else - op_channel = 1 + (r % 3) * 5; - cfg_op_channel = 0; - } - ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel, - cfg_op_channel); - if (ret) - wpa_printf(MSG_ERROR, "P2P: Own oper channel update " - "failed: %d", ret); - } - - if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) { - if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan, - wpa_s->conf->p2p_pref_chan) < 0) { - wpa_printf(MSG_ERROR, "P2P: Preferred channel list " - "update failed"); - } - - if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) { - wpa_printf(MSG_ERROR, "P2P: No GO channel list " - "update failed"); - } - } - - if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN) - p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len); -} - - -int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start, - int duration) -{ - if (!wpa_s->ap_iface) - return -1; - return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start, - duration); -} - - -int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled) -{ - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return -1; - - wpa_s->global->cross_connection = enabled; - p2p_set_cross_connect(wpa_s->global->p2p, enabled); - - if (!enabled) { - struct wpa_supplicant *iface; - - for (iface = wpa_s->global->ifaces; iface; iface = iface->next) - { - if (iface->cross_connect_enabled == 0) - continue; - - iface->cross_connect_enabled = 0; - iface->cross_connect_in_use = 0; - wpa_msg_global(iface->p2pdev, MSG_INFO, - P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s", - iface->ifname, - iface->cross_connect_uplink); - } - } - - return 0; -} - - -static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink) -{ - struct wpa_supplicant *iface; - - if (!uplink->global->cross_connection) - return; - - for (iface = uplink->global->ifaces; iface; iface = iface->next) { - if (!iface->cross_connect_enabled) - continue; - if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) != - 0) - continue; - if (iface->ap_iface == NULL) - continue; - if (iface->cross_connect_in_use) - continue; - - iface->cross_connect_in_use = 1; - wpa_msg_global(iface->p2pdev, MSG_INFO, - P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s", - iface->ifname, iface->cross_connect_uplink); - } -} - - -static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink) -{ - struct wpa_supplicant *iface; - - for (iface = uplink->global->ifaces; iface; iface = iface->next) { - if (!iface->cross_connect_enabled) - continue; - if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) != - 0) - continue; - if (!iface->cross_connect_in_use) - continue; - - wpa_msg_global(iface->p2pdev, MSG_INFO, - P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s", - iface->ifname, iface->cross_connect_uplink); - iface->cross_connect_in_use = 0; - } -} - - -void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s) -{ - if (wpa_s->ap_iface || wpa_s->current_ssid == NULL || - wpa_s->current_ssid->mode != WPAS_MODE_INFRA || - wpa_s->cross_connect_disallowed) - wpas_p2p_disable_cross_connect(wpa_s); - else - wpas_p2p_enable_cross_connect(wpa_s); - if (!wpa_s->ap_iface && - eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0) - wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout"); -} - - -void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s) -{ - wpas_p2p_disable_cross_connect(wpa_s); - if (!wpa_s->ap_iface && - !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout, - wpa_s, NULL)) - wpas_p2p_set_group_idle_timeout(wpa_s); -} - - -static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s) -{ - struct wpa_supplicant *iface; - - if (!wpa_s->global->cross_connection) - return; - - for (iface = wpa_s->global->ifaces; iface; iface = iface->next) { - if (iface == wpa_s) - continue; - if (iface->drv_flags & - WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE) - continue; - if ((iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) && - iface != wpa_s->parent) - continue; - - wpa_s->cross_connect_enabled = 1; - os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname, - sizeof(wpa_s->cross_connect_uplink)); - wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from " - "%s to %s whenever uplink is available", - wpa_s->ifname, wpa_s->cross_connect_uplink); - - if (iface->ap_iface || iface->current_ssid == NULL || - iface->current_ssid->mode != WPAS_MODE_INFRA || - iface->cross_connect_disallowed || - iface->wpa_state != WPA_COMPLETED) - break; - - wpa_s->cross_connect_in_use = 1; - wpa_msg_global(wpa_s->p2pdev, MSG_INFO, - P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s", - wpa_s->ifname, wpa_s->cross_connect_uplink); - break; - } -} - - -int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s) -{ - if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT && - !wpa_s->p2p_in_provisioning) - return 0; /* not P2P client operation */ - - wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC " - "session overlap"); - if (wpa_s != wpa_s->p2pdev) - wpa_msg_ctrl(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_OVERLAP); - wpas_p2p_group_formation_failed(wpa_s, 0); - return 1; -} - - -void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx) -{ - struct wpa_supplicant *wpa_s = eloop_ctx; - wpas_p2p_notif_pbc_overlap(wpa_s); -} - - -void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s, - enum wpas_p2p_channel_update_trig trig) -{ - struct p2p_channels chan, cli_chan; - struct wpa_used_freq_data *freqs = NULL; - unsigned int num = wpa_s->num_multichan_concurrent; - - if (wpa_s->global == NULL || wpa_s->global->p2p == NULL) - return; - - freqs = os_calloc(num, sizeof(struct wpa_used_freq_data)); - if (!freqs) - return; - - num = get_shared_radio_freqs_data(wpa_s, freqs, num); - - os_memset(&chan, 0, sizeof(chan)); - os_memset(&cli_chan, 0, sizeof(cli_chan)); - if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) { - wpa_printf(MSG_ERROR, "P2P: Failed to update supported " - "channel list"); - return; - } - - p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan); - - wpas_p2p_optimize_listen_channel(wpa_s, freqs, num); - - /* - * The used frequencies map changed, so it is possible that a GO is - * using a channel that is no longer valid for P2P use. It is also - * possible that due to policy consideration, it would be preferable to - * move it to a frequency already used by other station interfaces. - */ - wpas_p2p_consider_moving_gos(wpa_s, freqs, num, trig); - - os_free(freqs); -} - - -static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s, - struct wpa_scan_results *scan_res) -{ - wpa_printf(MSG_DEBUG, "P2P: Ignore scan results"); -} - - -int wpas_p2p_cancel(struct wpa_supplicant *wpa_s) -{ - struct wpa_global *global = wpa_s->global; - int found = 0; - const u8 *peer; - - if (global->p2p == NULL) - return -1; - - wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation"); - - if (wpa_s->pending_interface_name[0] && - !is_zero_ether_addr(wpa_s->pending_interface_addr)) - found = 1; - - peer = p2p_get_go_neg_peer(global->p2p); - if (peer) { - wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer " - MACSTR, MAC2STR(peer)); - p2p_unauthorize(global->p2p, peer); - found = 1; - } - - if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) { - wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join"); - wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore; - found = 1; - } - - if (wpa_s->pending_pd_before_join) { - wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join"); - wpa_s->pending_pd_before_join = 0; - found = 1; - } - - wpas_p2p_stop_find(wpa_s); - - for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { - if (wpa_s == global->p2p_group_formation && - (wpa_s->p2p_in_provisioning || - wpa_s->parent->pending_interface_type == - WPA_IF_P2P_CLIENT)) { - wpa_printf(MSG_DEBUG, "P2P: Interface %s in group " - "formation found - cancelling", - wpa_s->ifname); - found = 1; - eloop_cancel_timeout(wpas_p2p_group_formation_timeout, - wpa_s->p2pdev, NULL); - if (wpa_s->p2p_in_provisioning) { - wpas_group_formation_completed(wpa_s, 0, 0); - break; - } - wpas_p2p_group_delete(wpa_s, - P2P_GROUP_REMOVAL_REQUESTED); - break; - } else if (wpa_s->p2p_in_invitation) { - wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling", - wpa_s->ifname); - found = 1; - wpas_p2p_group_formation_failed(wpa_s, 0); - break; - } - } - - if (!found) { - wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found"); - return -1; - } - - return 0; -} - - -void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s) -{ - if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group) - return; - - wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not " - "being available anymore"); - wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE); -} - - -void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s, - int freq_24, int freq_5, int freq_overall) -{ - struct p2p_data *p2p = wpa_s->global->p2p; - if (p2p == NULL) - return; - p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall); -} - - -int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr) -{ - u8 peer[ETH_ALEN]; - struct p2p_data *p2p = wpa_s->global->p2p; - - if (p2p == NULL) - return -1; - - if (hwaddr_aton(addr, peer)) - return -1; - - return p2p_unauthorize(p2p, peer); -} - - -/** - * wpas_p2p_disconnect - Disconnect from a P2P Group - * @wpa_s: Pointer to wpa_supplicant data - * Returns: 0 on success, -1 on failure - * - * This can be used to disconnect from a group in which the local end is a P2P - * Client or to end a P2P Group in case the local end is the Group Owner. If a - * virtual network interface was created for this group, that interface will be - * removed. Otherwise, only the configured P2P group network will be removed - * from the interface. - */ -int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s) -{ - - if (wpa_s == NULL) - return -1; - - return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ? - -1 : 0; -} - - -int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s) -{ - int ret; - - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return 0; - - ret = p2p_in_progress(wpa_s->global->p2p); - if (ret == 0) { - /* - * Check whether there is an ongoing WPS provisioning step (or - * other parts of group formation) on another interface since - * p2p_in_progress() does not report this to avoid issues for - * scans during such provisioning step. - */ - if (wpa_s->global->p2p_group_formation && - wpa_s->global->p2p_group_formation != wpa_s) { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) " - "in group formation", - wpa_s->global->p2p_group_formation->ifname); - ret = 1; - } - } - - if (!ret && wpa_s->global->p2p_go_wait_client.sec) { - struct os_reltime now; - os_get_reltime(&now); - if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client, - P2P_MAX_INITIAL_CONN_WAIT_GO)) { - /* Wait for the first client has expired */ - wpa_s->global->p2p_go_wait_client.sec = 0; - } else { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation"); - ret = 1; - } - } - - return ret; -} - - -void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s, - struct wpa_ssid *ssid) -{ - if (wpa_s->p2p_in_provisioning && ssid->p2p_group && - eloop_cancel_timeout(wpas_p2p_group_formation_timeout, - wpa_s->p2pdev, NULL) > 0) { - /** - * Remove the network by scheduling the group formation - * timeout to happen immediately. The teardown code - * needs to be scheduled to run asynch later so that we - * don't delete data from under ourselves unexpectedly. - * Calling wpas_p2p_group_formation_timeout directly - * causes a series of crashes in WPS failure scenarios. - */ - wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to " - "P2P group network getting removed"); - eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout, - wpa_s->p2pdev, NULL); - } -} - - -struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s, - const u8 *addr, const u8 *ssid, - size_t ssid_len) -{ - struct wpa_ssid *s; - size_t i; - - for (s = wpa_s->conf->ssid; s; s = s->next) { - if (s->disabled != 2) - continue; - if (ssid && - (ssid_len != s->ssid_len || - os_memcmp(ssid, s->ssid, ssid_len) != 0)) - continue; - if (addr == NULL) { - if (s->mode == WPAS_MODE_P2P_GO) - return s; - continue; - } - if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0) - return s; /* peer is GO in the persistent group */ - if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL) - continue; - for (i = 0; i < s->num_p2p_clients; i++) { - if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN, - addr, ETH_ALEN) == 0) - return s; /* peer is P2P client in persistent - * group */ - } - } - - return NULL; -} - - -void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s, - const u8 *addr) -{ - if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout, - wpa_s->p2pdev, NULL) > 0) { - /* - * This can happen if WPS provisioning step is not terminated - * cleanly (e.g., P2P Client does not send WSC_Done). Since the - * peer was able to connect, there is no need to time out group - * formation after this, though. In addition, this is used with - * the initial connection wait on the GO as a separate formation - * timeout and as such, expected to be hit after the initial WPS - * provisioning step. - */ - wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection"); - - if (!wpa_s->p2p_go_group_formation_completed && - !wpa_s->group_formation_reported) { - /* - * GO has not yet notified group formation success since - * the WPS step was not completed cleanly. Do that - * notification now since the P2P Client was able to - * connect and as such, must have received the - * credential from the WPS step. - */ - if (wpa_s->global->p2p) - p2p_wps_success_cb(wpa_s->global->p2p, addr); - wpas_group_formation_completed(wpa_s, 1, 0); - } - } - if (!wpa_s->p2p_go_group_formation_completed) { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection"); - wpa_s->p2p_go_group_formation_completed = 1; - wpa_s->global->p2p_group_formation = NULL; - wpa_s->p2p_in_provisioning = 0; - wpa_s->p2p_in_invitation = 0; - } - wpa_s->global->p2p_go_wait_client.sec = 0; - if (addr == NULL) - return; - wpas_p2p_add_persistent_group_client(wpa_s, addr); -} - - -static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s, - int group_added) -{ - struct wpa_supplicant *group = wpa_s; - int ret = 0; - - if (wpa_s->global->p2p_group_formation) - group = wpa_s->global->p2p_group_formation; - wpa_s = wpa_s->global->p2p_init_wpa_s; - offchannel_send_action_done(wpa_s); - if (group_added) - ret = wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT); - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation"); - 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_go_vht_center_freq2, - wpa_s->p2p_persistent_id, - wpa_s->p2p_pd_before_go_neg, - wpa_s->p2p_go_ht40, - wpa_s->p2p_go_vht, - wpa_s->p2p_go_max_oper_chwidth, NULL, 0); - return ret; -} - - -int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s) -{ - int res; - - if (!wpa_s->p2p_fallback_to_go_neg || - wpa_s->p2p_in_provisioning <= 5) - return 0; - - if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0) - return 0; /* peer operating as a GO */ - - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - " - "fallback to GO Negotiation"); - wpa_msg_global(wpa_s->p2pdev, MSG_INFO, P2P_EVENT_FALLBACK_TO_GO_NEG - "reason=GO-not-found"); - res = wpas_p2p_fallback_to_go_neg(wpa_s, 1); - - return res == 1 ? 2 : 1; -} - - -unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s) -{ - struct wpa_supplicant *ifs; - - if (wpa_s->wpa_state > WPA_SCANNING) { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to " - "concurrent operation", - wpa_s->conf->p2p_search_delay); - return wpa_s->conf->p2p_search_delay; - } - - dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant, - radio_list) { - if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search " - "delay due to concurrent operation on " - "interface %s", - wpa_s->conf->p2p_search_delay, - ifs->ifname); - return wpa_s->conf->p2p_search_delay; - } - } - - return 0; -} - - -static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s, - struct wpa_ssid *s, const u8 *addr, - int iface_addr) -{ - struct psk_list_entry *psk, *tmp; - int changed = 0; - - dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry, - list) { - if ((iface_addr && !psk->p2p && - os_memcmp(addr, psk->addr, ETH_ALEN) == 0) || - (!iface_addr && psk->p2p && - os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) { - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P: Remove persistent group PSK list entry for " - MACSTR " p2p=%u", - MAC2STR(psk->addr), psk->p2p); - dl_list_del(&psk->list); - os_free(psk); - changed++; - } - } - - return changed; -} - - -void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr, - const u8 *p2p_dev_addr, - const u8 *psk, size_t psk_len) -{ - struct wpa_ssid *ssid = wpa_s->current_ssid; - struct wpa_ssid *persistent; - struct psk_list_entry *p, *last; - - if (psk_len != sizeof(p->psk)) - return; - - if (p2p_dev_addr) { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR - " p2p_dev_addr=" MACSTR, - MAC2STR(mac_addr), MAC2STR(p2p_dev_addr)); - if (is_zero_ether_addr(p2p_dev_addr)) - p2p_dev_addr = NULL; - } else { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR, - MAC2STR(mac_addr)); - } - - if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation"); - /* To be added to persistent group once created */ - if (wpa_s->global->add_psk == NULL) { - wpa_s->global->add_psk = os_zalloc(sizeof(*p)); - if (wpa_s->global->add_psk == NULL) - return; - } - p = wpa_s->global->add_psk; - if (p2p_dev_addr) { - p->p2p = 1; - os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN); - } else { - p->p2p = 0; - os_memcpy(p->addr, mac_addr, ETH_ALEN); - } - os_memcpy(p->psk, psk, psk_len); - return; - } - - if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO"); - return; - } - - persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, NULL, ssid->ssid, - ssid->ssid_len); - if (!persistent) { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK"); - return; - } - - p = os_zalloc(sizeof(*p)); - if (p == NULL) - return; - if (p2p_dev_addr) { - p->p2p = 1; - os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN); - } else { - p->p2p = 0; - os_memcpy(p->addr, mac_addr, ETH_ALEN); - } - os_memcpy(p->psk, psk, psk_len); - - if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS && - (last = dl_list_last(&persistent->psk_list, - struct psk_list_entry, list))) { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for " - MACSTR " (p2p=%u) to make room for a new one", - MAC2STR(last->addr), last->p2p); - dl_list_del(&last->list); - os_free(last); - } - - wpas_p2p_remove_psk_entry(wpa_s->p2pdev, persistent, - p2p_dev_addr ? p2p_dev_addr : mac_addr, - p2p_dev_addr == NULL); - if (p2p_dev_addr) { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr=" - MACSTR, MAC2STR(p2p_dev_addr)); - } else { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR, - MAC2STR(mac_addr)); - } - dl_list_add(&persistent->psk_list, &p->list); - - if (wpa_s->p2pdev->conf->update_config && - wpa_config_write(wpa_s->p2pdev->confname, wpa_s->p2pdev->conf)) - wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration"); -} - - -static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s, - struct wpa_ssid *s, const u8 *addr, - int iface_addr) -{ - int res; - - res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr); - if (res > 0 && wpa_s->conf->update_config && - wpa_config_write(wpa_s->confname, wpa_s->conf)) - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P: Failed to update configuration"); -} - - -static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s, - const u8 *peer, int iface_addr) -{ - struct hostapd_data *hapd; - struct hostapd_wpa_psk *psk, *prev, *rem; - struct sta_info *sta; - - if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL || - wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO) - return; - - /* Remove per-station PSK entry */ - hapd = wpa_s->ap_iface->bss[0]; - prev = NULL; - psk = hapd->conf->ssid.wpa_psk; - while (psk) { - if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) || - (!iface_addr && - os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for " - MACSTR " iface_addr=%d", - MAC2STR(peer), iface_addr); - if (prev) - prev->next = psk->next; - else - hapd->conf->ssid.wpa_psk = psk->next; - rem = psk; - psk = psk->next; - os_free(rem); - } else { - prev = psk; - psk = psk->next; - } - } - - /* Disconnect from group */ - if (iface_addr) - sta = ap_get_sta(hapd, peer); - else - sta = ap_get_sta_p2p(hapd, peer); - if (sta) { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR - " (iface_addr=%d) from group", - MAC2STR(peer), iface_addr); - hostapd_drv_sta_deauth(hapd, sta->addr, - WLAN_REASON_DEAUTH_LEAVING); - ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING); - } -} - - -void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer, - int iface_addr) -{ - struct wpa_ssid *s; - struct wpa_supplicant *w; - struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s; - - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer)); - - /* Remove from any persistent group */ - for (s = p2p_wpa_s->conf->ssid; s; s = s->next) { - if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO) - continue; - if (!iface_addr) - wpas_remove_persistent_peer(p2p_wpa_s, s, peer, 0); - wpas_p2p_remove_psk(p2p_wpa_s, s, peer, iface_addr); - } - - /* Remove from any operating group */ - for (w = wpa_s->global->ifaces; w; w = w->next) - wpas_p2p_remove_client_go(w, peer, iface_addr); -} - - -static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx) -{ - struct wpa_supplicant *wpa_s = eloop_ctx; - wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE); -} - - -static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx) -{ - struct wpa_supplicant *wpa_s = eloop_ctx; - - wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group"); - wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT); -} - - -int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq, - struct wpa_ssid *ssid) -{ - struct wpa_supplicant *iface; - - for (iface = wpa_s->global->ifaces; iface; iface = iface->next) { - if (!iface->current_ssid || - iface->current_ssid->frequency == freq || - (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE && - !iface->current_ssid->p2p_group)) - continue; - - /* Remove the connection with least priority */ - if (!wpas_is_p2p_prioritized(iface)) { - /* STA connection has priority over existing - * P2P connection, so remove the interface. */ - wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict"); - eloop_register_timeout(0, 0, - wpas_p2p_group_freq_conflict, - iface, NULL); - /* If connection in progress is P2P connection, do not - * proceed for the connection. */ - if (wpa_s == iface) - return -1; - else - return 0; - } else { - /* P2P connection has priority, disable the STA network - */ - wpa_supplicant_disable_network(wpa_s->global->ifaces, - ssid); - wpa_msg(wpa_s->global->ifaces, MSG_INFO, - WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id); - os_memset(wpa_s->global->ifaces->pending_bssid, 0, - ETH_ALEN); - /* If P2P connection is in progress, continue - * connecting...*/ - if (wpa_s == iface) - return 0; - else - return -1; - } - } - - return 0; -} - - -int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s) -{ - struct wpa_ssid *ssid = wpa_s->current_ssid; - - if (ssid == NULL || !ssid->p2p_group) - return 0; - - if (wpa_s->p2p_last_4way_hs_fail && - wpa_s->p2p_last_4way_hs_fail == ssid) { - u8 go_dev_addr[ETH_ALEN]; - struct wpa_ssid *persistent; - - if (wpas_p2p_persistent_group(wpa_s, go_dev_addr, - ssid->ssid, - ssid->ssid_len) <= 0) { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group"); - goto disconnect; - } - - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr=" - MACSTR, MAC2STR(go_dev_addr)); - persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, go_dev_addr, - ssid->ssid, - ssid->ssid_len); - if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored"); - goto disconnect; - } - wpa_msg_global(wpa_s->p2pdev, MSG_INFO, - P2P_EVENT_PERSISTENT_PSK_FAIL "%d", - persistent->id); - disconnect: - wpa_s->p2p_last_4way_hs_fail = NULL; - /* - * Remove the group from a timeout to avoid issues with caller - * continuing to use the interface if this is on a P2P group - * interface. - */ - eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal, - wpa_s, NULL); - return 1; - } - - wpa_s->p2p_last_4way_hs_fail = ssid; - return 0; -} - - -#ifdef CONFIG_WPS_NFC - -static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc, - struct wpabuf *p2p) -{ - struct wpabuf *ret; - size_t wsc_len; - - if (p2p == NULL) { - wpabuf_free(wsc); - wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover"); - return NULL; - } - - wsc_len = wsc ? wpabuf_len(wsc) : 0; - ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p)); - if (ret == NULL) { - wpabuf_free(wsc); - wpabuf_free(p2p); - return NULL; - } - - wpabuf_put_be16(ret, wsc_len); - if (wsc) - wpabuf_put_buf(ret, wsc); - wpabuf_put_be16(ret, wpabuf_len(p2p)); - wpabuf_put_buf(ret, p2p); - - wpabuf_free(wsc); - wpabuf_free(p2p); - wpa_hexdump_buf(MSG_DEBUG, - "P2P: Generated NFC connection handover message", ret); - - if (ndef && ret) { - struct wpabuf *tmp; - tmp = ndef_build_p2p(ret); - wpabuf_free(ret); - if (tmp == NULL) { - wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request"); - return NULL; - } - ret = tmp; - } - - return ret; -} - - -static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s, - struct wpa_ssid **ssid, u8 *go_dev_addr) -{ - struct wpa_supplicant *iface; - - if (go_dev_addr) - os_memset(go_dev_addr, 0, ETH_ALEN); - if (ssid) - *ssid = NULL; - for (iface = wpa_s->global->ifaces; iface; iface = iface->next) { - if (iface->wpa_state < WPA_ASSOCIATING || - iface->current_ssid == NULL || iface->assoc_freq == 0 || - !iface->current_ssid->p2p_group || - iface->current_ssid->mode != WPAS_MODE_INFRA) - continue; - if (ssid) - *ssid = iface->current_ssid; - if (go_dev_addr) - os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN); - return iface->assoc_freq; - } - return 0; -} - - -struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s, - int ndef) -{ - struct wpabuf *wsc, *p2p; - struct wpa_ssid *ssid; - u8 go_dev_addr[ETH_ALEN]; - int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr); - - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) { - wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request"); - return NULL; - } - - if (wpa_s->conf->wps_nfc_dh_pubkey == NULL && - wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey, - &wpa_s->conf->wps_nfc_dh_privkey) < 0) { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request"); - return NULL; - } - - if (cli_freq == 0) { - wsc = wps_build_nfc_handover_req_p2p( - wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey); - } else - wsc = NULL; - p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq, - go_dev_addr, ssid ? ssid->ssid : NULL, - ssid ? ssid->ssid_len : 0); - - return wpas_p2p_nfc_handover(ndef, wsc, p2p); -} - - -struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s, - int ndef, int tag) -{ - struct wpabuf *wsc, *p2p; - struct wpa_ssid *ssid; - u8 go_dev_addr[ETH_ALEN]; - int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr); - - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return NULL; - - if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL && - wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey, - &wpa_s->conf->wps_nfc_dh_privkey) < 0) - return NULL; - - if (cli_freq == 0) { - wsc = wps_build_nfc_handover_sel_p2p( - wpa_s->parent->wps, - tag ? wpa_s->conf->wps_nfc_dev_pw_id : - DEV_PW_NFC_CONNECTION_HANDOVER, - wpa_s->conf->wps_nfc_dh_pubkey, - tag ? wpa_s->conf->wps_nfc_dev_pw : NULL); - } else - wsc = NULL; - p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq, - go_dev_addr, ssid ? ssid->ssid : NULL, - ssid ? ssid->ssid_len : 0); - - return wpas_p2p_nfc_handover(ndef, wsc, p2p); -} - - -static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s, - struct p2p_nfc_params *params) -{ - wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC " - "connection handover (freq=%d)", - params->go_freq); - - if (params->go_freq && params->go_ssid_len) { - wpa_s->p2p_wps_method = WPS_NFC; - wpa_s->pending_join_wps_method = WPS_NFC; - os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN); - os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr, - ETH_ALEN); - return wpas_p2p_join_start(wpa_s, params->go_freq, - params->go_ssid, - params->go_ssid_len); - } - - return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL, - WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent, - params->go_freq, wpa_s->p2p_go_vht_center_freq2, - -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth, - params->go_ssid_len ? params->go_ssid : NULL, - params->go_ssid_len); -} - - -static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s, - struct p2p_nfc_params *params, int tag) -{ - int res, persistent; - struct wpa_ssid *ssid; - - wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC " - "connection handover"); - for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) { - ssid = wpa_s->current_ssid; - if (ssid == NULL) - continue; - if (ssid->mode != WPAS_MODE_P2P_GO) - continue; - if (wpa_s->ap_iface == NULL) - continue; - break; - } - if (wpa_s == NULL) { - wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface"); - return -1; - } - - if (wpa_s->p2pdev->p2p_oob_dev_pw_id != - DEV_PW_NFC_CONNECTION_HANDOVER && - !wpa_s->p2pdev->p2p_oob_dev_pw) { - wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known"); - return -1; - } - res = wpas_ap_wps_add_nfc_pw( - wpa_s, wpa_s->p2pdev->p2p_oob_dev_pw_id, - wpa_s->p2pdev->p2p_oob_dev_pw, - wpa_s->p2pdev->p2p_peer_oob_pk_hash_known ? - wpa_s->p2pdev->p2p_peer_oob_pubkey_hash : NULL); - if (res) - return res; - - if (!tag) { - wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation"); - return 0; - } - - if (!params->peer || - !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE)) - return 0; - - wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR - " to join", MAC2STR(params->peer->p2p_device_addr)); - - wpa_s->global->p2p_invite_group = wpa_s; - persistent = ssid->p2p_persistent_group && - wpas_p2p_get_persistent(wpa_s->p2pdev, - params->peer->p2p_device_addr, - ssid->ssid, ssid->ssid_len); - wpa_s->p2pdev->pending_invite_ssid_id = -1; - - return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr, - P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr, - ssid->ssid, ssid->ssid_len, ssid->frequency, - wpa_s->global->p2p_dev_addr, persistent, 0, - wpa_s->p2pdev->p2p_oob_dev_pw_id); -} - - -static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s, - struct p2p_nfc_params *params, - int forced_freq) -{ - wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC " - "connection handover"); - return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL, - WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent, - forced_freq, wpa_s->p2p_go_vht_center_freq2, - -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth, - NULL, 0); -} - - -static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s, - struct p2p_nfc_params *params, - int forced_freq) -{ - int res; - - wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC " - "connection handover"); - res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL, - WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent, - forced_freq, wpa_s->p2p_go_vht_center_freq2, - -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth, - NULL, 0); - if (res) - return res; - - res = wpas_p2p_listen(wpa_s, 60); - if (res) { - p2p_unauthorize(wpa_s->global->p2p, - params->peer->p2p_device_addr); - } - - return res; -} - - -static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s, - const struct wpabuf *data, - int sel, int tag, int forced_freq) -{ - const u8 *pos, *end; - u16 len, id; - struct p2p_nfc_params params; - int res; - - os_memset(¶ms, 0, sizeof(params)); - params.sel = sel; - - wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data); - - pos = wpabuf_head(data); - end = pos + wpabuf_len(data); - - if (end - pos < 2) { - wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC " - "attributes"); - return -1; - } - len = WPA_GET_BE16(pos); - pos += 2; - if (len > end - pos) { - wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC " - "attributes"); - return -1; - } - params.wsc_attr = pos; - params.wsc_len = len; - pos += len; - - if (end - pos < 2) { - wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P " - "attributes"); - return -1; - } - len = WPA_GET_BE16(pos); - pos += 2; - if (len > end - pos) { - wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P " - "attributes"); - return -1; - } - params.p2p_attr = pos; - params.p2p_len = len; - pos += len; - - wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes", - params.wsc_attr, params.wsc_len); - wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes", - params.p2p_attr, params.p2p_len); - if (pos < end) { - wpa_hexdump(MSG_DEBUG, - "P2P: Ignored extra data after P2P attributes", - pos, end - pos); - } - - res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, ¶ms); - if (res) - return res; - - if (params.next_step == NO_ACTION) - return 0; - - if (params.next_step == BOTH_GO) { - wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR, - MAC2STR(params.peer->p2p_device_addr)); - return 0; - } - - if (params.next_step == PEER_CLIENT) { - if (!is_zero_ether_addr(params.go_dev_addr)) { - wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT - "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR - " ssid=\"%s\"", - MAC2STR(params.peer->p2p_device_addr), - params.go_freq, - MAC2STR(params.go_dev_addr), - wpa_ssid_txt(params.go_ssid, - params.go_ssid_len)); - } else { - wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT - "peer=" MACSTR " freq=%d", - MAC2STR(params.peer->p2p_device_addr), - params.go_freq); - } - return 0; - } - - if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) { - wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer=" - MACSTR, MAC2STR(params.peer->p2p_device_addr)); - return 0; - } - - wpabuf_free(wpa_s->p2p_oob_dev_pw); - wpa_s->p2p_oob_dev_pw = NULL; - - if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) { - wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw " - "received"); - return -1; - } - - id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN); - wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id); - wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash", - params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN); - os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash, - params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN); - wpa_s->p2p_peer_oob_pk_hash_known = 1; - - if (tag) { - if (id < 0x10) { - wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid " - "peer OOB Device Password Id %u", id); - return -1; - } - wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB " - "Device Password Id %u", id); - wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password", - params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2, - params.oob_dev_pw_len - - WPS_OOB_PUBKEY_HASH_LEN - 2); - wpa_s->p2p_oob_dev_pw_id = id; - wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy( - params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2, - params.oob_dev_pw_len - - WPS_OOB_PUBKEY_HASH_LEN - 2); - if (wpa_s->p2p_oob_dev_pw == NULL) - return -1; - - if (wpa_s->conf->wps_nfc_dh_pubkey == NULL && - wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey, - &wpa_s->conf->wps_nfc_dh_privkey) < 0) - return -1; - } else { - wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake " - "without Device Password"); - wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER; - } - - switch (params.next_step) { - case NO_ACTION: - case BOTH_GO: - case PEER_CLIENT: - /* already covered above */ - return 0; - case JOIN_GROUP: - return wpas_p2p_nfc_join_group(wpa_s, ¶ms); - case AUTH_JOIN: - return wpas_p2p_nfc_auth_join(wpa_s, ¶ms, tag); - case INIT_GO_NEG: - return wpas_p2p_nfc_init_go_neg(wpa_s, ¶ms, forced_freq); - case RESP_GO_NEG: - /* TODO: use own OOB Dev Pw */ - return wpas_p2p_nfc_resp_go_neg(wpa_s, ¶ms, forced_freq); - } - - return -1; -} - - -int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s, - const struct wpabuf *data, int forced_freq) -{ - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return -1; - - return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq); -} - - -int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init, - const struct wpabuf *req, - const struct wpabuf *sel, int forced_freq) -{ - struct wpabuf *tmp; - int ret; - - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return -1; - - wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported"); - - wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req", - wpabuf_head(req), wpabuf_len(req)); - wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel", - wpabuf_head(sel), wpabuf_len(sel)); - if (forced_freq) - wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq); - tmp = ndef_parse_p2p(init ? sel : req); - if (tmp == NULL) { - wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF"); - return -1; - } - - ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0, - forced_freq); - wpabuf_free(tmp); - - return ret; -} - - -int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled) -{ - const u8 *if_addr; - int go_intent = wpa_s->conf->p2p_go_intent; - struct wpa_supplicant *iface; - - if (wpa_s->global->p2p == NULL) - return -1; - - if (!enabled) { - wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag"); - for (iface = wpa_s->global->ifaces; iface; iface = iface->next) - { - if (!iface->ap_iface) - continue; - hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]); - } - p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0, - 0, NULL); - if (wpa_s->p2p_nfc_tag_enabled) - wpas_p2p_remove_pending_group_interface(wpa_s); - wpa_s->p2p_nfc_tag_enabled = 0; - return 0; - } - - if (wpa_s->global->p2p_disabled) - return -1; - - if (wpa_s->conf->wps_nfc_dh_pubkey == NULL || - wpa_s->conf->wps_nfc_dh_privkey == NULL || - wpa_s->conf->wps_nfc_dev_pw == NULL || - wpa_s->conf->wps_nfc_dev_pw_id < 0x10) { - wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured " - "to allow static handover cases"); - return -1; - } - - wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag"); - - wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id; - wpabuf_free(wpa_s->p2p_oob_dev_pw); - wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw); - if (wpa_s->p2p_oob_dev_pw == NULL) - return -1; - wpa_s->p2p_peer_oob_pk_hash_known = 0; - - if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO || - wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) { - /* - * P2P Group Interface present and the command came on group - * interface, so enable the token for the current interface. - */ - wpa_s->create_p2p_iface = 0; - } else { - wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s); - } - - if (wpa_s->create_p2p_iface) { - enum wpa_driver_if_type iftype; - /* 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"); - return -1; - } - - if_addr = wpa_s->pending_interface_addr; - } else if (wpa_s->p2p_mgmt) - if_addr = wpa_s->parent->own_addr; - else - if_addr = wpa_s->own_addr; - - wpa_s->p2p_nfc_tag_enabled = enabled; - - for (iface = wpa_s->global->ifaces; iface; iface = iface->next) { - struct hostapd_data *hapd; - if (iface->ap_iface == NULL) - continue; - hapd = iface->ap_iface->bss[0]; - wpabuf_free(hapd->conf->wps_nfc_dh_pubkey); - hapd->conf->wps_nfc_dh_pubkey = - wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey); - wpabuf_free(hapd->conf->wps_nfc_dh_privkey); - hapd->conf->wps_nfc_dh_privkey = - wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey); - wpabuf_free(hapd->conf->wps_nfc_dev_pw); - hapd->conf->wps_nfc_dev_pw = - wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw); - hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id; - - if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) { - wpa_dbg(iface, MSG_DEBUG, - "P2P: Failed to enable NFC Tag for GO"); - } - } - p2p_set_authorized_oob_dev_pw_id( - wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent, - if_addr); - - return 0; -} - -#endif /* CONFIG_WPS_NFC */ - - -static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s, - struct wpa_used_freq_data *freqs, - unsigned int num) -{ - u8 curr_chan, cand, chan; - unsigned int i; - - /* - * If possible, optimize the Listen channel to be a channel that is - * already used by one of the other interfaces. - */ - if (!wpa_s->conf->p2p_optimize_listen_chan) - return; - - if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED) - return; - - curr_chan = p2p_get_listen_channel(wpa_s->global->p2p); - for (i = 0, cand = 0; i < num; i++) { - ieee80211_freq_to_chan(freqs[i].freq, &chan); - if (curr_chan == chan) { - cand = 0; - break; - } - - if (chan == 1 || chan == 6 || chan == 11) - cand = chan; - } - - if (cand) { - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P: Update Listen channel to %u based on operating channel", - cand); - p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0); - } -} - - -static int wpas_p2p_move_go_csa(struct wpa_supplicant *wpa_s) -{ - struct hostapd_config *conf; - struct p2p_go_neg_results params; - struct csa_settings csa_settings; - struct wpa_ssid *current_ssid = wpa_s->current_ssid; - int old_freq = current_ssid->frequency; - int ret; - - if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)) { - wpa_dbg(wpa_s, MSG_DEBUG, "CSA is not enabled"); - return -1; - } - - /* - * TODO: This function may not always work correctly. For example, - * when we have a running GO and a BSS on a DFS channel. - */ - if (wpas_p2p_init_go_params(wpa_s, ¶ms, 0, 0, 0, 0, 0, NULL)) { - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P CSA: Failed to select new frequency for GO"); - return -1; - } - - if (current_ssid->frequency == params.freq) { - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P CSA: Selected same frequency - not moving GO"); - return 0; - } - - conf = hostapd_config_defaults(); - if (!conf) { - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P CSA: Failed to allocate default config"); - return -1; - } - - current_ssid->frequency = params.freq; - if (wpa_supplicant_conf_ap_ht(wpa_s, current_ssid, conf)) { - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P CSA: Failed to create new GO config"); - ret = -1; - goto out; - } - - if (conf->hw_mode != wpa_s->ap_iface->current_mode->mode) { - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P CSA: CSA to a different band is not supported"); - ret = -1; - goto out; - } - - os_memset(&csa_settings, 0, sizeof(csa_settings)); - csa_settings.cs_count = P2P_GO_CSA_COUNT; - csa_settings.block_tx = P2P_GO_CSA_BLOCK_TX; - csa_settings.freq_params.freq = params.freq; - csa_settings.freq_params.sec_channel_offset = conf->secondary_channel; - csa_settings.freq_params.ht_enabled = conf->ieee80211n; - csa_settings.freq_params.bandwidth = conf->secondary_channel ? 40 : 20; - - if (conf->ieee80211ac) { - int freq1 = 0, freq2 = 0; - u8 chan, opclass; - - if (ieee80211_freq_to_channel_ext(params.freq, - conf->secondary_channel, - conf->vht_oper_chwidth, - &opclass, &chan) == - NUM_HOSTAPD_MODES) { - wpa_printf(MSG_ERROR, "P2P CSA: Bad freq"); - ret = -1; - goto out; - } - - if (conf->vht_oper_centr_freq_seg0_idx) - freq1 = ieee80211_chan_to_freq( - NULL, opclass, - conf->vht_oper_centr_freq_seg0_idx); - - if (conf->vht_oper_centr_freq_seg1_idx) - freq2 = ieee80211_chan_to_freq( - NULL, opclass, - conf->vht_oper_centr_freq_seg1_idx); - - if (freq1 < 0 || freq2 < 0) { - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P CSA: Selected invalid VHT center freqs"); - ret = -1; - goto out; - } - - csa_settings.freq_params.vht_enabled = conf->ieee80211ac; - csa_settings.freq_params.center_freq1 = freq1; - csa_settings.freq_params.center_freq2 = freq2; - - switch (conf->vht_oper_chwidth) { - case VHT_CHANWIDTH_80MHZ: - case VHT_CHANWIDTH_80P80MHZ: - csa_settings.freq_params.bandwidth = 80; - break; - case VHT_CHANWIDTH_160MHZ: - csa_settings.freq_params.bandwidth = 160; - break; - } - } - - ret = ap_switch_channel(wpa_s, &csa_settings); -out: - current_ssid->frequency = old_freq; - hostapd_config_free(conf); - return ret; -} - - -static void wpas_p2p_move_go_no_csa(struct wpa_supplicant *wpa_s) -{ - struct p2p_go_neg_results params; - struct wpa_ssid *current_ssid = wpa_s->current_ssid; - - wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP); - - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz", - current_ssid->frequency); - - /* Stop the AP functionality */ - /* TODO: Should do this in a way that does not indicated to possible - * P2P Clients in the group that the group is terminated. */ - wpa_supplicant_ap_deinit(wpa_s); - - /* Reselect the GO frequency */ - if (wpas_p2p_init_go_params(wpa_s, ¶ms, 0, 0, 0, 0, 0, NULL)) { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Failed to reselect freq"); - wpas_p2p_group_delete(wpa_s, - P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL); - return; - } - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New freq selected for the GO (%u MHz)", - params.freq); - - if (params.freq && - !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) { - wpa_printf(MSG_DEBUG, - "P2P: Selected freq (%u MHz) is not valid for P2P", - params.freq); - wpas_p2p_group_delete(wpa_s, - P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL); - return; - } - - /* Update the frequency */ - current_ssid->frequency = params.freq; - wpa_s->connect_without_scan = current_ssid; - wpa_s->reassociate = 1; - wpa_s->disconnected = 0; - wpa_supplicant_req_scan(wpa_s, 0, 0); -} - - -static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx) -{ - struct wpa_supplicant *wpa_s = eloop_ctx; - - if (!wpa_s->ap_iface || !wpa_s->current_ssid) - return; - - wpas_p2p_go_update_common_freqs(wpa_s); - - /* Do not move GO in the middle of a CSA */ - if (hostapd_csa_in_progress(wpa_s->ap_iface)) { - wpa_printf(MSG_DEBUG, - "P2P: CSA is in progress - not moving GO"); - return; - } - - /* - * First, try a channel switch flow. If it is not supported or fails, - * take down the GO and bring it up again. - */ - if (wpas_p2p_move_go_csa(wpa_s) < 0) - wpas_p2p_move_go_no_csa(wpa_s); -} - - -static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx) -{ - struct wpa_supplicant *wpa_s = eloop_ctx; - struct wpa_used_freq_data *freqs = NULL; - unsigned int num = wpa_s->num_multichan_concurrent; - - freqs = os_calloc(num, sizeof(struct wpa_used_freq_data)); - if (!freqs) - return; - - num = get_shared_radio_freqs_data(wpa_s, freqs, num); - - /* Previous attempt to move a GO was not possible -- try again. */ - wpas_p2p_consider_moving_gos(wpa_s, freqs, num, - WPAS_P2P_CHANNEL_UPDATE_ANY); - - os_free(freqs); -} - - -/* - * Consider moving a GO from its currently used frequency: - * 1. It is possible that due to regulatory consideration the frequency - * can no longer be used and there is a need to evacuate the GO. - * 2. It is possible that due to MCC considerations, it would be preferable - * to move the GO to a channel that is currently used by some other - * station interface. - * - * In case a frequency that became invalid is once again valid, cancel a - * previously initiated GO frequency change. - */ -static void wpas_p2p_consider_moving_one_go(struct wpa_supplicant *wpa_s, - struct wpa_used_freq_data *freqs, - unsigned int num) -{ - unsigned int i, invalid_freq = 0, policy_move = 0, flags = 0; - unsigned int timeout; - int freq; - - wpas_p2p_go_update_common_freqs(wpa_s); - - freq = wpa_s->current_ssid->frequency; - for (i = 0, invalid_freq = 0; i < num; i++) { - if (freqs[i].freq == freq) { - flags = freqs[i].flags; - - /* The channel is invalid, must change it */ - if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) { - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P: Freq=%d MHz no longer valid for GO", - freq); - invalid_freq = 1; - } - } else if (freqs[i].flags == 0) { - /* Freq is not used by any other station interface */ - continue; - } else if (!p2p_supported_freq(wpa_s->global->p2p, - freqs[i].freq)) { - /* Freq is not valid for P2P use cases */ - continue; - } else if (wpa_s->conf->p2p_go_freq_change_policy == - P2P_GO_FREQ_MOVE_SCM) { - policy_move = 1; - } else if (wpa_s->conf->p2p_go_freq_change_policy == - P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS && - wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) { - policy_move = 1; - } else if ((wpa_s->conf->p2p_go_freq_change_policy == - P2P_GO_FREQ_MOVE_SCM_ECSA) && - wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) { - if (!p2p_get_group_num_members(wpa_s->p2p_group)) { - policy_move = 1; - } else if ((wpa_s->drv_flags & - WPA_DRIVER_FLAGS_AP_CSA) && - wpas_p2p_go_clients_support_ecsa(wpa_s)) { - u8 chan; - - /* - * We do not support CSA between bands, so move - * GO only within the same band. - */ - if (wpa_s->ap_iface->current_mode->mode == - ieee80211_freq_to_chan(freqs[i].freq, - &chan)) - policy_move = 1; - } - } - } - - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P: GO move: invalid_freq=%u, policy_move=%u, flags=0x%X", - invalid_freq, policy_move, flags); - - /* - * The channel is valid, or we are going to have a policy move, so - * cancel timeout. - */ - if (!invalid_freq || policy_move) { - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P: Cancel a GO move from freq=%d MHz", freq); - eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL); - - if (wpas_p2p_in_progress(wpa_s)) { - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P: GO move: policy CS is not allowed - setting timeout to re-consider GO move"); - eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, - wpa_s, NULL); - eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0, - wpas_p2p_reconsider_moving_go, - wpa_s, NULL); - return; - } - } - - if (!invalid_freq && (!policy_move || flags != 0)) { - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P: Not initiating a GO frequency change"); - return; - } - - /* - * Do not consider moving GO if it is in the middle of a CSA. When the - * CSA is finished this flow should be retriggered. - */ - if (hostapd_csa_in_progress(wpa_s->ap_iface)) { - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P: Not initiating a GO frequency change - CSA is in progress"); - return; - } - - if (invalid_freq && !wpas_p2p_disallowed_freq(wpa_s->global, freq)) - timeout = P2P_GO_FREQ_CHANGE_TIME; - else - timeout = 0; - - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz in %d secs", - freq, timeout); - eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL); - eloop_register_timeout(timeout, 0, wpas_p2p_move_go, wpa_s, NULL); -} - - -static void wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s, - struct wpa_used_freq_data *freqs, - unsigned int num, - enum wpas_p2p_channel_update_trig trig) -{ - struct wpa_supplicant *ifs; - - eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, ELOOP_ALL_CTX, - NULL); - - /* - * Travers all the radio interfaces, and for each GO interface, check - * if there is a need to move the GO from the frequency it is using, - * or in case the frequency is valid again, cancel the evacuation flow. - */ - dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant, - radio_list) { - if (ifs->current_ssid == NULL || - ifs->current_ssid->mode != WPAS_MODE_P2P_GO) - continue; - - /* - * The GO was just started or completed channel switch, no need - * to move it. - */ - if (wpa_s == ifs && - (trig == WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE || - trig == WPAS_P2P_CHANNEL_UPDATE_CS)) { - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P: GO move - schedule re-consideration"); - eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0, - wpas_p2p_reconsider_moving_go, - wpa_s, NULL); - continue; - } - - wpas_p2p_consider_moving_one_go(ifs, freqs, num); - } -} - - -void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s) -{ - if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) - return; - - wpas_p2p_update_channel_list(wpa_s, - WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE); -} - - -void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s) -{ - if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) { - wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing " - "the management interface is being removed"); - wpas_p2p_deinit_global(wpa_s->global); - } -} - - -void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s) -{ - if (wpa_s->ap_iface->bss) - wpa_s->ap_iface->bss[0]->p2p_group = NULL; - wpas_p2p_group_deinit(wpa_s); -} - - -int wpas_p2p_lo_start(struct wpa_supplicant *wpa_s, unsigned int freq, - unsigned int period, unsigned int interval, - unsigned int count) -{ - struct p2p_data *p2p = wpa_s->global->p2p; - u8 *device_types; - size_t dev_types_len; - struct wpabuf *buf; - int ret; - - if (wpa_s->p2p_lo_started) { - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P Listen offload is already started"); - return 0; - } - - if (wpa_s->global->p2p == NULL || - !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_LISTEN_OFFLOAD)) { - wpa_printf(MSG_DEBUG, "P2P: Listen offload not supported"); - return -1; - } - - if (!p2p_supported_freq(wpa_s->global->p2p, freq)) { - wpa_printf(MSG_ERROR, "P2P: Input channel not supported: %u", - freq); - return -1; - } - - /* Get device type */ - dev_types_len = (wpa_s->conf->num_sec_device_types + 1) * - WPS_DEV_TYPE_LEN; - device_types = os_malloc(dev_types_len); - if (!device_types) - return -1; - os_memcpy(device_types, wpa_s->conf->device_type, WPS_DEV_TYPE_LEN); - os_memcpy(&device_types[WPS_DEV_TYPE_LEN], wpa_s->conf->sec_device_type, - wpa_s->conf->num_sec_device_types * WPS_DEV_TYPE_LEN); - - /* Get Probe Response IE(s) */ - buf = p2p_build_probe_resp_template(p2p, freq); - if (!buf) { - os_free(device_types); - return -1; - } - - ret = wpa_drv_p2p_lo_start(wpa_s, freq, period, interval, count, - device_types, dev_types_len, - wpabuf_mhead_u8(buf), wpabuf_len(buf)); - if (ret < 0) - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P: Failed to start P2P listen offload"); - - os_free(device_types); - wpabuf_free(buf); - - if (ret == 0) { - wpa_s->p2p_lo_started = 1; - - /* Stop current P2P listen if any */ - wpas_stop_listen(wpa_s); - } - - return ret; -} - - -int wpas_p2p_lo_stop(struct wpa_supplicant *wpa_s) -{ - int ret; - - if (!wpa_s->p2p_lo_started) - return 0; - - ret = wpa_drv_p2p_lo_stop(wpa_s); - if (ret < 0) - wpa_dbg(wpa_s, MSG_DEBUG, - "P2P: Failed to stop P2P listen offload"); - - wpa_s->p2p_lo_started = 0; - return ret; -}