+++ /dev/null
-/*
- * wpa_supplicant - P2P
- * Copyright (c) 2009-2010, Atheros Communications
- * Copyright (c) 2010-2014, Jouni Malinen <j@w1.fi>
- *
- * This software may be distributed under the terms of the BSD license.
- * See README for more details.
- */
-
-#include "includes.h"
-
-#include "common.h"
-#include "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- * it is currently using, but is no longer valid for P2P use cases.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- * Defines CSA parameters which are used when GO evacuates the no longer valid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;
-}
projects / mech_eap.git / blobdiff