wpa_supplicant: Initial Revision 0.8.X
Based on:
commit 0725cc7b7efc434910e89865c42eda7ce61bbf08
Author: Jouni Malinen <j@w1.fi>
Date: Thu Apr 21 20:41:01 2011 +0300
Enable CONFIG_DRIVER_NL80211=y in the default configuration
nl80211 should be preferred over WEXT with any recent Linux
kernel version.
Change-Id: I26aec5afbbd4f4a1f5fd900912545b6f5050de64
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/p2p/p2p.c b/src/p2p/p2p.c
new file mode 100644
index 0000000..653609e
--- /dev/null
+++ b/src/p2p/p2p.c
@@ -0,0 +1,3490 @@
+/*
+ * Wi-Fi Direct - P2P module
+ * Copyright (c) 2009-2010, Atheros Communications
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#include "includes.h"
+
+#include "common.h"
+#include "eloop.h"
+#include "common/ieee802_11_defs.h"
+#include "common/ieee802_11_common.h"
+#include "wps/wps_i.h"
+#include "p2p_i.h"
+#include "p2p.h"
+
+
+static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx);
+static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev);
+static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
+ const u8 *sa, const u8 *data, size_t len,
+ int rx_freq);
+static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
+ const u8 *sa, const u8 *data,
+ size_t len);
+static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx);
+static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx);
+
+
+/*
+ * p2p_scan recovery timeout
+ *
+ * Many drivers are using 30 second timeout on scan results. Allow a bit larger
+ * timeout for this to avoid hitting P2P timeout unnecessarily.
+ */
+#define P2P_SCAN_TIMEOUT 35
+
+/**
+ * P2P_PEER_EXPIRATION_AGE - Number of seconds after which inactive peer
+ * entries will be removed
+ */
+#define P2P_PEER_EXPIRATION_AGE 300
+
+#define P2P_PEER_EXPIRATION_INTERVAL (P2P_PEER_EXPIRATION_AGE / 2)
+
+static void p2p_expire_peers(struct p2p_data *p2p)
+{
+ struct p2p_device *dev, *n;
+ struct os_time now;
+
+ os_get_time(&now);
+ dl_list_for_each_safe(dev, n, &p2p->devices, struct p2p_device, list) {
+ if (dev->last_seen.sec + P2P_PEER_EXPIRATION_AGE >= now.sec)
+ continue;
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Expiring old peer "
+ "entry " MACSTR, MAC2STR(dev->info.p2p_device_addr));
+ dl_list_del(&dev->list);
+ p2p_device_free(p2p, dev);
+ }
+}
+
+
+static void p2p_expiration_timeout(void *eloop_ctx, void *timeout_ctx)
+{
+ struct p2p_data *p2p = eloop_ctx;
+ p2p_expire_peers(p2p);
+ eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
+ p2p_expiration_timeout, p2p, NULL);
+}
+
+
+static const char * p2p_state_txt(int state)
+{
+ switch (state) {
+ case P2P_IDLE:
+ return "IDLE";
+ case P2P_SEARCH:
+ return "SEARCH";
+ case P2P_CONNECT:
+ return "CONNECT";
+ case P2P_CONNECT_LISTEN:
+ return "CONNECT_LISTEN";
+ case P2P_GO_NEG:
+ return "GO_NEG";
+ case P2P_LISTEN_ONLY:
+ return "LISTEN_ONLY";
+ case P2P_WAIT_PEER_CONNECT:
+ return "WAIT_PEER_CONNECT";
+ case P2P_WAIT_PEER_IDLE:
+ return "WAIT_PEER_IDLE";
+ case P2P_SD_DURING_FIND:
+ return "SD_DURING_FIND";
+ case P2P_PROVISIONING:
+ return "PROVISIONING";
+ case P2P_PD_DURING_FIND:
+ return "PD_DURING_FIND";
+ case P2P_INVITE:
+ return "INVITE";
+ case P2P_INVITE_LISTEN:
+ return "INVITE_LISTEN";
+ default:
+ return "?";
+ }
+}
+
+
+void p2p_set_state(struct p2p_data *p2p, int new_state)
+{
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: State %s -> %s",
+ p2p_state_txt(p2p->state), p2p_state_txt(new_state));
+ p2p->state = new_state;
+}
+
+
+void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, unsigned int usec)
+{
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Set timeout (state=%s): %u.%06u sec",
+ p2p_state_txt(p2p->state), sec, usec);
+ eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
+ eloop_register_timeout(sec, usec, p2p_state_timeout, p2p, NULL);
+}
+
+
+void p2p_clear_timeout(struct p2p_data *p2p)
+{
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Clear timeout (state=%s)",
+ p2p_state_txt(p2p->state));
+ eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
+}
+
+
+void p2p_go_neg_failed(struct p2p_data *p2p, struct p2p_device *peer,
+ int status)
+{
+ struct p2p_go_neg_results res;
+ p2p_clear_timeout(p2p);
+ p2p_set_state(p2p, P2P_IDLE);
+ p2p->go_neg_peer = NULL;
+
+ os_memset(&res, 0, sizeof(res));
+ res.status = status;
+ if (peer) {
+ os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr,
+ ETH_ALEN);
+ os_memcpy(res.peer_interface_addr, peer->intended_addr,
+ ETH_ALEN);
+ }
+ p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
+}
+
+
+static void p2p_listen_in_find(struct p2p_data *p2p)
+{
+ unsigned int r, tu;
+ int freq;
+ struct wpabuf *ies;
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Starting short listen state (state=%s)",
+ p2p_state_txt(p2p->state));
+
+ freq = p2p_channel_to_freq(p2p->cfg->country, p2p->cfg->reg_class,
+ p2p->cfg->channel);
+ if (freq < 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Unknown regulatory class/channel");
+ return;
+ }
+
+ os_get_random((u8 *) &r, sizeof(r));
+ tu = (r % ((p2p->max_disc_int - p2p->min_disc_int) + 1) +
+ p2p->min_disc_int) * 100;
+
+ p2p->pending_listen_freq = freq;
+ p2p->pending_listen_sec = 0;
+ p2p->pending_listen_usec = 1024 * tu;
+
+ ies = p2p_build_probe_resp_ies(p2p);
+ if (ies == NULL)
+ return;
+
+ if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, 1024 * tu / 1000,
+ ies) < 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Failed to start listen mode");
+ p2p->pending_listen_freq = 0;
+ }
+ wpabuf_free(ies);
+}
+
+
+int p2p_listen(struct p2p_data *p2p, unsigned int timeout)
+{
+ int freq;
+ struct wpabuf *ies;
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Going to listen(only) state");
+
+ freq = p2p_channel_to_freq(p2p->cfg->country, p2p->cfg->reg_class,
+ p2p->cfg->channel);
+ if (freq < 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Unknown regulatory class/channel");
+ return -1;
+ }
+
+ p2p->pending_listen_freq = freq;
+ p2p->pending_listen_sec = timeout / 1000;
+ p2p->pending_listen_usec = (timeout % 1000) * 1000;
+
+ if (p2p->p2p_scan_running) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: p2p_scan running - delay start of listen state");
+ p2p->start_after_scan = P2P_AFTER_SCAN_LISTEN;
+ return 0;
+ }
+
+ ies = p2p_build_probe_resp_ies(p2p);
+ if (ies == NULL)
+ return -1;
+
+ if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, timeout, ies) < 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Failed to start listen mode");
+ p2p->pending_listen_freq = 0;
+ wpabuf_free(ies);
+ return -1;
+ }
+ wpabuf_free(ies);
+
+ p2p_set_state(p2p, P2P_LISTEN_ONLY);
+
+ return 0;
+}
+
+
+static void p2p_device_clear_reported(struct p2p_data *p2p)
+{
+ struct p2p_device *dev;
+ dl_list_for_each(dev, &p2p->devices, struct p2p_device, list)
+ dev->flags &= ~P2P_DEV_REPORTED;
+}
+
+
+/**
+ * p2p_get_device - Fetch a peer entry
+ * @p2p: P2P module context from p2p_init()
+ * @addr: P2P Device Address of the peer
+ * Returns: Pointer to the device entry or %NULL if not found
+ */
+struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr)
+{
+ struct p2p_device *dev;
+ dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
+ if (os_memcmp(dev->info.p2p_device_addr, addr, ETH_ALEN) == 0)
+ return dev;
+ }
+ return NULL;
+}
+
+
+/**
+ * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address
+ * @p2p: P2P module context from p2p_init()
+ * @addr: P2P Interface Address of the peer
+ * Returns: Pointer to the device entry or %NULL if not found
+ */
+struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
+ const u8 *addr)
+{
+ struct p2p_device *dev;
+ dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
+ if (os_memcmp(dev->interface_addr, addr, ETH_ALEN) == 0)
+ return dev;
+ }
+ return NULL;
+}
+
+
+/**
+ * p2p_create_device - Create a peer entry
+ * @p2p: P2P module context from p2p_init()
+ * @addr: P2P Device Address of the peer
+ * Returns: Pointer to the device entry or %NULL on failure
+ *
+ * If there is already an entry for the peer, it will be returned instead of
+ * creating a new one.
+ */
+static struct p2p_device * p2p_create_device(struct p2p_data *p2p,
+ const u8 *addr)
+{
+ struct p2p_device *dev, *oldest = NULL;
+ size_t count = 0;
+
+ dev = p2p_get_device(p2p, addr);
+ if (dev)
+ return dev;
+
+ dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
+ count++;
+ if (oldest == NULL ||
+ os_time_before(&dev->last_seen, &oldest->last_seen))
+ oldest = dev;
+ }
+ if (count + 1 > p2p->cfg->max_peers && oldest) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Remove oldest peer entry to make room for a new "
+ "peer");
+ dl_list_del(&oldest->list);
+ p2p_device_free(p2p, oldest);
+ }
+
+ dev = os_zalloc(sizeof(*dev));
+ if (dev == NULL)
+ return NULL;
+ dl_list_add(&p2p->devices, &dev->list);
+ os_memcpy(dev->info.p2p_device_addr, addr, ETH_ALEN);
+
+ return dev;
+}
+
+
+static void p2p_copy_client_info(struct p2p_device *dev,
+ struct p2p_client_info *cli)
+{
+ os_memcpy(dev->info.device_name, cli->dev_name, cli->dev_name_len);
+ dev->info.device_name[cli->dev_name_len] = '\0';
+ dev->info.dev_capab = cli->dev_capab;
+ dev->info.config_methods = cli->config_methods;
+ os_memcpy(dev->info.pri_dev_type, cli->pri_dev_type, 8);
+ dev->info.wps_sec_dev_type_list_len = 8 * cli->num_sec_dev_types;
+ os_memcpy(dev->info.wps_sec_dev_type_list, cli->sec_dev_types,
+ dev->info.wps_sec_dev_type_list_len);
+}
+
+
+static int p2p_add_group_clients(struct p2p_data *p2p, const u8 *go_dev_addr,
+ const u8 *go_interface_addr, int freq,
+ const u8 *gi, size_t gi_len)
+{
+ struct p2p_group_info info;
+ size_t c;
+ struct p2p_device *dev;
+
+ if (gi == NULL)
+ return 0;
+
+ if (p2p_group_info_parse(gi, gi_len, &info) < 0)
+ return -1;
+
+ /*
+ * Clear old data for this group; if the devices are still in the
+ * group, the information will be restored in the loop following this.
+ */
+ dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
+ if (os_memcpy(dev->member_in_go_iface, go_interface_addr,
+ ETH_ALEN) == 0) {
+ os_memset(dev->member_in_go_iface, 0, ETH_ALEN);
+ os_memset(dev->member_in_go_dev, 0, ETH_ALEN);
+ }
+ }
+
+ for (c = 0; c < info.num_clients; c++) {
+ struct p2p_client_info *cli = &info.client[c];
+ dev = p2p_get_device(p2p, cli->p2p_device_addr);
+ if (dev) {
+ /*
+ * Update information only if we have not received this
+ * directly from the client.
+ */
+ if (dev->flags & (P2P_DEV_GROUP_CLIENT_ONLY |
+ P2P_DEV_PROBE_REQ_ONLY))
+ p2p_copy_client_info(dev, cli);
+ if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
+ dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
+ }
+ } else {
+ dev = p2p_create_device(p2p, cli->p2p_device_addr);
+ if (dev == NULL)
+ continue;
+ dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
+ p2p_copy_client_info(dev, cli);
+ dev->oper_freq = freq;
+ p2p->cfg->dev_found(p2p->cfg->cb_ctx,
+ dev->info.p2p_device_addr,
+ &dev->info, 1);
+ dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
+ }
+
+ os_memcpy(dev->interface_addr, cli->p2p_interface_addr,
+ ETH_ALEN);
+ os_get_time(&dev->last_seen);
+ os_memcpy(dev->member_in_go_dev, go_dev_addr, ETH_ALEN);
+ os_memcpy(dev->member_in_go_iface, go_interface_addr,
+ ETH_ALEN);
+ }
+
+ return 0;
+}
+
+
+static void p2p_copy_wps_info(struct p2p_device *dev, int probe_req,
+ const struct p2p_message *msg)
+{
+ os_memcpy(dev->info.device_name, msg->device_name,
+ sizeof(dev->info.device_name));
+
+ if (msg->manufacturer &&
+ msg->manufacturer_len < sizeof(dev->info.manufacturer)) {
+ os_memset(dev->info.manufacturer, 0,
+ sizeof(dev->info.manufacturer));
+ os_memcpy(dev->info.manufacturer, msg->manufacturer,
+ msg->manufacturer_len);
+ }
+
+ if (msg->model_name &&
+ msg->model_name_len < sizeof(dev->info.model_name)) {
+ os_memset(dev->info.model_name, 0,
+ sizeof(dev->info.model_name));
+ os_memcpy(dev->info.model_name, msg->model_name,
+ msg->model_name_len);
+ }
+
+ if (msg->model_number &&
+ msg->model_number_len < sizeof(dev->info.model_number)) {
+ os_memset(dev->info.model_number, 0,
+ sizeof(dev->info.model_number));
+ os_memcpy(dev->info.model_number, msg->model_number,
+ msg->model_number_len);
+ }
+
+ if (msg->serial_number &&
+ msg->serial_number_len < sizeof(dev->info.serial_number)) {
+ os_memset(dev->info.serial_number, 0,
+ sizeof(dev->info.serial_number));
+ os_memcpy(dev->info.serial_number, msg->serial_number,
+ msg->serial_number_len);
+ }
+
+ if (msg->pri_dev_type)
+ os_memcpy(dev->info.pri_dev_type, msg->pri_dev_type,
+ sizeof(dev->info.pri_dev_type));
+ else if (msg->wps_pri_dev_type)
+ os_memcpy(dev->info.pri_dev_type, msg->wps_pri_dev_type,
+ sizeof(dev->info.pri_dev_type));
+
+ if (msg->wps_sec_dev_type_list) {
+ os_memcpy(dev->info.wps_sec_dev_type_list,
+ msg->wps_sec_dev_type_list,
+ msg->wps_sec_dev_type_list_len);
+ dev->info.wps_sec_dev_type_list_len =
+ msg->wps_sec_dev_type_list_len;
+ }
+
+ if (msg->capability) {
+ dev->info.dev_capab = msg->capability[0];
+ dev->info.group_capab = msg->capability[1];
+ }
+
+ if (msg->ext_listen_timing) {
+ dev->ext_listen_period = WPA_GET_LE16(msg->ext_listen_timing);
+ dev->ext_listen_interval =
+ WPA_GET_LE16(msg->ext_listen_timing + 2);
+ }
+
+ if (!probe_req) {
+ dev->info.config_methods = msg->config_methods ?
+ msg->config_methods : msg->wps_config_methods;
+ }
+}
+
+
+/**
+ * p2p_add_device - Add peer entries based on scan results
+ * @p2p: P2P module context from p2p_init()
+ * @addr: Source address of Beacon or Probe Response frame (may be either
+ * P2P Device Address or P2P Interface Address)
+ * @level: Signal level (signal strength of the received frame from the peer)
+ * @freq: Frequency on which the Beacon or Probe Response frame was received
+ * @ies: IEs from the Beacon or Probe Response frame
+ * @ies_len: Length of ies buffer in octets
+ * Returns: 0 on success, -1 on failure
+ *
+ * If the scan result is for a GO, the clients in the group will also be added
+ * to the peer table. This function can also be used with some other frames
+ * like Provision Discovery Request that contains P2P Capability and P2P Device
+ * Info attributes.
+ */
+int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq, int level,
+ const u8 *ies, size_t ies_len)
+{
+ struct p2p_device *dev;
+ struct p2p_message msg;
+ const u8 *p2p_dev_addr;
+ int i;
+
+ os_memset(&msg, 0, sizeof(msg));
+ if (p2p_parse_ies(ies, ies_len, &msg)) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Failed to parse P2P IE for a device entry");
+ p2p_parse_free(&msg);
+ return -1;
+ }
+
+ if (msg.p2p_device_addr)
+ p2p_dev_addr = msg.p2p_device_addr;
+ else if (msg.device_id)
+ p2p_dev_addr = msg.device_id;
+ else {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Ignore scan data without P2P Device Info or "
+ "P2P Device Id");
+ p2p_parse_free(&msg);
+ return -1;
+ }
+
+ if (!is_zero_ether_addr(p2p->peer_filter) &&
+ os_memcmp(p2p_dev_addr, p2p->peer_filter, ETH_ALEN) != 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Do not add peer "
+ "filter for " MACSTR " due to peer filter",
+ MAC2STR(p2p_dev_addr));
+ return 0;
+ }
+
+ dev = p2p_create_device(p2p, p2p_dev_addr);
+ if (dev == NULL) {
+ p2p_parse_free(&msg);
+ return -1;
+ }
+ os_get_time(&dev->last_seen);
+ dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
+
+ if (os_memcmp(addr, p2p_dev_addr, ETH_ALEN) != 0)
+ os_memcpy(dev->interface_addr, addr, ETH_ALEN);
+ if (msg.ssid &&
+ (msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
+ os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
+ != 0)) {
+ os_memcpy(dev->oper_ssid, msg.ssid + 2, msg.ssid[1]);
+ dev->oper_ssid_len = msg.ssid[1];
+ }
+
+ if (freq >= 2412 && freq <= 2484 && msg.ds_params &&
+ *msg.ds_params >= 1 && *msg.ds_params <= 14) {
+ int ds_freq;
+ if (*msg.ds_params == 14)
+ ds_freq = 2484;
+ else
+ ds_freq = 2407 + *msg.ds_params * 5;
+ if (freq != ds_freq) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Update Listen frequency based on DS "
+ "Parameter Set IE: %d -> %d MHz",
+ freq, ds_freq);
+ freq = ds_freq;
+ }
+ }
+
+ if (dev->listen_freq && dev->listen_freq != freq) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Update Listen frequency based on scan "
+ "results (" MACSTR " %d -> %d MHz (DS param %d)",
+ MAC2STR(dev->info.p2p_device_addr), dev->listen_freq,
+ freq, msg.ds_params ? *msg.ds_params : -1);
+ }
+ dev->listen_freq = freq;
+ if (msg.group_info)
+ dev->oper_freq = freq;
+ dev->level = level;
+
+ p2p_copy_wps_info(dev, 0, &msg);
+
+ for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
+ wpabuf_free(dev->info.wps_vendor_ext[i]);
+ dev->info.wps_vendor_ext[i] = NULL;
+ }
+
+ for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
+ if (msg.wps_vendor_ext[i] == NULL)
+ break;
+ dev->info.wps_vendor_ext[i] = wpabuf_alloc_copy(
+ msg.wps_vendor_ext[i], msg.wps_vendor_ext_len[i]);
+ if (dev->info.wps_vendor_ext[i] == NULL)
+ break;
+ }
+
+ p2p_add_group_clients(p2p, p2p_dev_addr, addr, freq, msg.group_info,
+ msg.group_info_len);
+
+ p2p_parse_free(&msg);
+
+ if (p2p_pending_sd_req(p2p, dev))
+ dev->flags |= P2P_DEV_SD_SCHEDULE;
+
+ if (dev->flags & P2P_DEV_REPORTED)
+ return 0;
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Peer found with Listen frequency %d MHz", freq);
+ if (dev->flags & P2P_DEV_USER_REJECTED) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Do not report rejected device");
+ return 0;
+ }
+
+ p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
+ !(dev->flags & P2P_DEV_REPORTED_ONCE));
+ dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
+
+ return 0;
+}
+
+
+static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev)
+{
+ int i;
+
+ if (p2p->go_neg_peer == dev)
+ p2p->go_neg_peer = NULL;
+ if (p2p->invite_peer == dev)
+ p2p->invite_peer = NULL;
+ if (p2p->sd_peer == dev)
+ p2p->sd_peer = NULL;
+ if (p2p->pending_client_disc_go == dev)
+ p2p->pending_client_disc_go = NULL;
+
+ p2p->cfg->dev_lost(p2p->cfg->cb_ctx, dev->info.p2p_device_addr);
+
+ for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
+ wpabuf_free(dev->info.wps_vendor_ext[i]);
+ dev->info.wps_vendor_ext[i] = NULL;
+ }
+
+ os_free(dev);
+}
+
+
+static int p2p_get_next_prog_freq(struct p2p_data *p2p)
+{
+ struct p2p_channels *c;
+ struct p2p_reg_class *cla;
+ size_t cl, ch;
+ int found = 0;
+ u8 reg_class;
+ u8 channel;
+ int freq;
+
+ c = &p2p->cfg->channels;
+ for (cl = 0; cl < c->reg_classes; cl++) {
+ cla = &c->reg_class[cl];
+ if (cla->reg_class != p2p->last_prog_scan_class)
+ continue;
+ for (ch = 0; ch < cla->channels; ch++) {
+ if (cla->channel[ch] == p2p->last_prog_scan_chan) {
+ found = 1;
+ break;
+ }
+ }
+ if (found)
+ break;
+ }
+
+ if (!found) {
+ /* Start from beginning */
+ reg_class = c->reg_class[0].reg_class;
+ channel = c->reg_class[0].channel[0];
+ } else {
+ /* Pick the next channel */
+ ch++;
+ if (ch == cla->channels) {
+ cl++;
+ if (cl == c->reg_classes)
+ cl = 0;
+ ch = 0;
+ }
+ reg_class = c->reg_class[cl].reg_class;
+ channel = c->reg_class[cl].channel[ch];
+ }
+
+ freq = p2p_channel_to_freq(p2p->cfg->country, reg_class, channel);
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Next progressive search "
+ "channel: reg_class %u channel %u -> %d MHz",
+ reg_class, channel, freq);
+ p2p->last_prog_scan_class = reg_class;
+ p2p->last_prog_scan_chan = channel;
+
+ if (freq == 2412 || freq == 2437 || freq == 2462)
+ return 0; /* No need to add social channels */
+ return freq;
+}
+
+
+static void p2p_search(struct p2p_data *p2p)
+{
+ int freq = 0;
+ enum p2p_scan_type type;
+
+ if (p2p->drv_in_listen) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver is still "
+ "in Listen state - wait for it to end before "
+ "continuing");
+ return;
+ }
+ p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
+
+ if (p2p->go_neg_peer) {
+ /*
+ * Only scan the known listen frequency of the peer
+ * during GO Negotiation start.
+ */
+ freq = p2p->go_neg_peer->listen_freq;
+ if (freq <= 0)
+ freq = p2p->go_neg_peer->oper_freq;
+ type = P2P_SCAN_SPECIFIC;
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search "
+ "for freq %u (GO Neg)", freq);
+ } else if (p2p->invite_peer) {
+ /*
+ * Only scan the known listen frequency of the peer
+ * during Invite start.
+ */
+ freq = p2p->invite_peer->listen_freq;
+ if (freq <= 0)
+ freq = p2p->invite_peer->oper_freq;
+ type = P2P_SCAN_SPECIFIC;
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search "
+ "for freq %u (Invite)", freq);
+ } else if (p2p->find_type == P2P_FIND_PROGRESSIVE &&
+ (freq = p2p_get_next_prog_freq(p2p)) > 0) {
+ type = P2P_SCAN_SOCIAL_PLUS_ONE;
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search "
+ "(+ freq %u)", freq);
+ } else {
+ type = P2P_SCAN_SOCIAL;
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting search");
+ }
+
+ if (p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, type, freq,
+ p2p->num_req_dev_types, p2p->req_dev_types) < 0)
+ {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Scan request failed");
+ p2p_continue_find(p2p);
+ } else {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Running p2p_scan");
+ p2p->p2p_scan_running = 1;
+ eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
+ eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
+ p2p, NULL);
+ }
+}
+
+
+static void p2p_find_timeout(void *eloop_ctx, void *timeout_ctx)
+{
+ struct p2p_data *p2p = eloop_ctx;
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Find timeout -> stop");
+ p2p_stop_find(p2p);
+}
+
+
+static int p2p_run_after_scan(struct p2p_data *p2p)
+{
+ struct p2p_device *dev;
+ enum p2p_after_scan op;
+
+ if (p2p->after_scan_tx) {
+ int ret;
+ /* TODO: schedule p2p_run_after_scan to be called from TX
+ * status callback(?) */
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send pending "
+ "Action frame at p2p_scan completion");
+ ret = p2p->cfg->send_action(p2p->cfg->cb_ctx,
+ p2p->after_scan_tx->freq,
+ p2p->after_scan_tx->dst,
+ p2p->after_scan_tx->src,
+ p2p->after_scan_tx->bssid,
+ (u8 *) (p2p->after_scan_tx + 1),
+ p2p->after_scan_tx->len,
+ p2p->after_scan_tx->wait_time);
+ os_free(p2p->after_scan_tx);
+ p2p->after_scan_tx = NULL;
+ return 1;
+ }
+
+ op = p2p->start_after_scan;
+ p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
+ switch (op) {
+ case P2P_AFTER_SCAN_NOTHING:
+ break;
+ case P2P_AFTER_SCAN_LISTEN:
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Start previously "
+ "requested Listen state");
+ p2p_listen(p2p, p2p->pending_listen_sec * 1000 +
+ p2p->pending_listen_usec / 1000);
+ return 1;
+ case P2P_AFTER_SCAN_CONNECT:
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Start previously "
+ "requested connect with " MACSTR,
+ MAC2STR(p2p->after_scan_peer));
+ dev = p2p_get_device(p2p, p2p->after_scan_peer);
+ if (dev == NULL) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Peer not "
+ "known anymore");
+ break;
+ }
+ p2p_connect_send(p2p, dev);
+ return 1;
+ }
+
+ return 0;
+}
+
+
+static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx)
+{
+ struct p2p_data *p2p = eloop_ctx;
+ int running;
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan timeout "
+ "(running=%d)", p2p->p2p_scan_running);
+ running = p2p->p2p_scan_running;
+ /* Make sure we recover from missed scan results callback */
+ p2p->p2p_scan_running = 0;
+
+ if (running)
+ p2p_run_after_scan(p2p);
+}
+
+
+static void p2p_free_req_dev_types(struct p2p_data *p2p)
+{
+ p2p->num_req_dev_types = 0;
+ os_free(p2p->req_dev_types);
+ p2p->req_dev_types = NULL;
+}
+
+
+int p2p_find(struct p2p_data *p2p, unsigned int timeout,
+ enum p2p_discovery_type type,
+ unsigned int num_req_dev_types, const u8 *req_dev_types)
+{
+ int res;
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Starting find (type=%d)",
+ type);
+ if (p2p->p2p_scan_running) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan is "
+ "already running");
+ }
+
+ p2p_free_req_dev_types(p2p);
+ if (req_dev_types && num_req_dev_types) {
+ p2p->req_dev_types = os_malloc(num_req_dev_types *
+ WPS_DEV_TYPE_LEN);
+ if (p2p->req_dev_types == NULL)
+ return -1;
+ os_memcpy(p2p->req_dev_types, req_dev_types,
+ num_req_dev_types * WPS_DEV_TYPE_LEN);
+ p2p->num_req_dev_types = num_req_dev_types;
+ }
+
+ p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
+ p2p_clear_timeout(p2p);
+ p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
+ p2p->find_type = type;
+ p2p_device_clear_reported(p2p);
+ p2p_set_state(p2p, P2P_SEARCH);
+ eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
+ if (timeout)
+ eloop_register_timeout(timeout, 0, p2p_find_timeout,
+ p2p, NULL);
+ switch (type) {
+ case P2P_FIND_START_WITH_FULL:
+ case P2P_FIND_PROGRESSIVE:
+ res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_FULL, 0,
+ p2p->num_req_dev_types,
+ p2p->req_dev_types);
+ break;
+ case P2P_FIND_ONLY_SOCIAL:
+ res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_SOCIAL, 0,
+ p2p->num_req_dev_types,
+ p2p->req_dev_types);
+ break;
+ default:
+ return -1;
+ }
+
+ if (res == 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Running p2p_scan");
+ p2p->p2p_scan_running = 1;
+ eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
+ eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
+ p2p, NULL);
+ } else {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Failed to start "
+ "p2p_scan");
+ }
+
+ return res;
+}
+
+
+void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq)
+{
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Stopping find");
+ eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
+ p2p_clear_timeout(p2p);
+ p2p_set_state(p2p, P2P_IDLE);
+ p2p_free_req_dev_types(p2p);
+ p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
+ p2p->go_neg_peer = NULL;
+ p2p->sd_peer = NULL;
+ p2p->invite_peer = NULL;
+ if (freq > 0 && p2p->drv_in_listen == freq && p2p->in_listen) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Skip stop_listen "
+ "since we are on correct channel for response");
+ return;
+ }
+ p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
+}
+
+
+void p2p_stop_find(struct p2p_data *p2p)
+{
+ p2p_stop_find_for_freq(p2p, 0);
+}
+
+
+static int p2p_prepare_channel(struct p2p_data *p2p, unsigned int force_freq)
+{
+ if (force_freq) {
+ u8 op_reg_class, op_channel;
+ if (p2p_freq_to_channel(p2p->cfg->country, force_freq,
+ &op_reg_class, &op_channel) < 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Unsupported frequency %u MHz",
+ force_freq);
+ return -1;
+ }
+ if (!p2p_channels_includes(&p2p->cfg->channels, op_reg_class,
+ op_channel)) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Frequency %u MHz (oper_class %u "
+ "channel %u) not allowed for P2P",
+ force_freq, op_reg_class, op_channel);
+ return -1;
+ }
+ p2p->op_reg_class = op_reg_class;
+ p2p->op_channel = op_channel;
+ p2p->channels.reg_classes = 1;
+ p2p->channels.reg_class[0].channels = 1;
+ p2p->channels.reg_class[0].reg_class = p2p->op_reg_class;
+ p2p->channels.reg_class[0].channel[0] = p2p->op_channel;
+ } else {
+ u8 op_reg_class, op_channel;
+
+ if (!p2p->cfg->cfg_op_channel && p2p->best_freq_overall > 0 &&
+ p2p_supported_freq(p2p, p2p->best_freq_overall) &&
+ p2p_freq_to_channel(p2p->cfg->country,
+ p2p->best_freq_overall,
+ &op_reg_class, &op_channel) == 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Select best overall channel as "
+ "operating channel preference");
+ p2p->op_reg_class = op_reg_class;
+ p2p->op_channel = op_channel;
+ } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_5 > 0 &&
+ p2p_supported_freq(p2p, p2p->best_freq_5) &&
+ p2p_freq_to_channel(p2p->cfg->country,
+ p2p->best_freq_5,
+ &op_reg_class, &op_channel) ==
+ 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Select best 5 GHz channel as "
+ "operating channel preference");
+ p2p->op_reg_class = op_reg_class;
+ p2p->op_channel = op_channel;
+ } else if (!p2p->cfg->cfg_op_channel &&
+ p2p->best_freq_24 > 0 &&
+ p2p_supported_freq(p2p, p2p->best_freq_24) &&
+ p2p_freq_to_channel(p2p->cfg->country,
+ p2p->best_freq_24,
+ &op_reg_class, &op_channel) ==
+ 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Select best 2.4 GHz channel as "
+ "operating channel preference");
+ p2p->op_reg_class = op_reg_class;
+ p2p->op_channel = op_channel;
+ } else {
+ p2p->op_reg_class = p2p->cfg->op_reg_class;
+ p2p->op_channel = p2p->cfg->op_channel;
+ }
+
+ os_memcpy(&p2p->channels, &p2p->cfg->channels,
+ sizeof(struct p2p_channels));
+ }
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Own preference for operation channel: "
+ "Operating Class %u Channel %u%s",
+ p2p->op_reg_class, p2p->op_channel,
+ force_freq ? " (forced)" : "");
+
+ return 0;
+}
+
+
+int p2p_connect(struct p2p_data *p2p, 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 p2p_device *dev;
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Request to start group negotiation - peer=" MACSTR
+ " GO Intent=%d Intended Interface Address=" MACSTR
+ " wps_method=%d persistent_group=%d",
+ MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
+ wps_method, persistent_group);
+
+ if (p2p_prepare_channel(p2p, force_freq) < 0)
+ return -1;
+
+ dev = p2p_get_device(p2p, peer_addr);
+ if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Cannot connect to unknown P2P Device " MACSTR,
+ MAC2STR(peer_addr));
+ return -1;
+ }
+
+ if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
+ if (!(dev->info.dev_capab &
+ P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Cannot connect to P2P Device " MACSTR
+ " that is in a group and is not discoverable",
+ MAC2STR(peer_addr));
+ return -1;
+ }
+ if (dev->oper_freq <= 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Cannot connect to P2P Device " MACSTR
+ " with incomplete information",
+ MAC2STR(peer_addr));
+ return -1;
+ }
+
+ /*
+ * First, try to connect directly. If the peer does not
+ * acknowledge frames, assume it is sleeping and use device
+ * discoverability via the GO at that point.
+ */
+ }
+
+ dev->flags &= ~P2P_DEV_NOT_YET_READY;
+ dev->flags &= ~P2P_DEV_USER_REJECTED;
+ dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
+ dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
+ dev->connect_reqs = 0;
+ dev->go_neg_req_sent = 0;
+ dev->go_state = UNKNOWN_GO;
+ if (persistent_group)
+ dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
+ else
+ dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_GROUP;
+ p2p->go_intent = go_intent;
+ os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
+
+ if (p2p->state != P2P_IDLE)
+ p2p_stop_find(p2p);
+
+ if (p2p->after_scan_tx) {
+ /*
+ * We need to drop the pending frame to avoid issues with the
+ * new GO Negotiation, e.g., when the pending frame was from a
+ * previous attempt at starting a GO Negotiation.
+ */
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Dropped "
+ "previous pending Action frame TX that was waiting "
+ "for p2p_scan completion");
+ os_free(p2p->after_scan_tx);
+ p2p->after_scan_tx = NULL;
+ }
+
+ dev->wps_method = wps_method;
+ dev->status = P2P_SC_SUCCESS;
+
+ if (force_freq)
+ dev->flags |= P2P_DEV_FORCE_FREQ;
+ else
+ dev->flags &= ~P2P_DEV_FORCE_FREQ;
+
+ if (p2p->p2p_scan_running) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: p2p_scan running - delay connect send");
+ p2p->start_after_scan = P2P_AFTER_SCAN_CONNECT;
+ os_memcpy(p2p->after_scan_peer, peer_addr, ETH_ALEN);
+ return 0;
+ }
+ p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
+
+ return p2p_connect_send(p2p, dev);
+}
+
+
+int p2p_authorize(struct p2p_data *p2p, 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 p2p_device *dev;
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Request to authorize group negotiation - peer=" MACSTR
+ " GO Intent=%d Intended Interface Address=" MACSTR
+ " wps_method=%d persistent_group=%d",
+ MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
+ wps_method, persistent_group);
+
+ if (p2p_prepare_channel(p2p, force_freq) < 0)
+ return -1;
+
+ dev = p2p_get_device(p2p, peer_addr);
+ if (dev == NULL) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Cannot authorize unknown P2P Device " MACSTR,
+ MAC2STR(peer_addr));
+ return -1;
+ }
+
+ dev->flags &= ~P2P_DEV_NOT_YET_READY;
+ dev->flags &= ~P2P_DEV_USER_REJECTED;
+ dev->go_neg_req_sent = 0;
+ dev->go_state = UNKNOWN_GO;
+ if (persistent_group)
+ dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
+ else
+ dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_GROUP;
+ p2p->go_intent = go_intent;
+ os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
+
+ dev->wps_method = wps_method;
+ dev->status = P2P_SC_SUCCESS;
+
+ if (force_freq)
+ dev->flags |= P2P_DEV_FORCE_FREQ;
+ else
+ dev->flags &= ~P2P_DEV_FORCE_FREQ;
+
+ return 0;
+}
+
+
+void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
+ struct p2p_device *dev, struct p2p_message *msg)
+{
+ os_get_time(&dev->last_seen);
+
+ p2p_copy_wps_info(dev, 0, msg);
+
+ if (msg->listen_channel) {
+ int freq;
+ freq = p2p_channel_to_freq((char *) msg->listen_channel,
+ msg->listen_channel[3],
+ msg->listen_channel[4]);
+ if (freq < 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Unknown peer Listen channel: "
+ "country=%c%c(0x%02x) reg_class=%u channel=%u",
+ msg->listen_channel[0],
+ msg->listen_channel[1],
+ msg->listen_channel[2],
+ msg->listen_channel[3],
+ msg->listen_channel[4]);
+ } else {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Update "
+ "peer " MACSTR " Listen channel: %u -> %u MHz",
+ MAC2STR(dev->info.p2p_device_addr),
+ dev->listen_freq, freq);
+ dev->listen_freq = freq;
+ }
+ }
+
+ if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
+ dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Completed device entry based on data from "
+ "GO Negotiation Request");
+ } else {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Created device entry based on GO Neg Req: "
+ MACSTR " dev_capab=0x%x group_capab=0x%x name='%s' "
+ "listen_freq=%d",
+ MAC2STR(dev->info.p2p_device_addr),
+ dev->info.dev_capab, dev->info.group_capab,
+ dev->info.device_name, dev->listen_freq);
+ }
+
+ dev->flags &= ~P2P_DEV_GROUP_CLIENT_ONLY;
+
+ if (dev->flags & P2P_DEV_USER_REJECTED) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Do not report rejected device");
+ return;
+ }
+
+ p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
+ !(dev->flags & P2P_DEV_REPORTED_ONCE));
+ dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
+}
+
+
+void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len)
+{
+ os_memcpy(ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
+ p2p_random((char *) &ssid[P2P_WILDCARD_SSID_LEN], 2);
+ os_memcpy(&ssid[P2P_WILDCARD_SSID_LEN + 2],
+ p2p->cfg->ssid_postfix, p2p->cfg->ssid_postfix_len);
+ *ssid_len = P2P_WILDCARD_SSID_LEN + 2 + p2p->cfg->ssid_postfix_len;
+}
+
+
+int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params)
+{
+ p2p_build_ssid(p2p, params->ssid, ¶ms->ssid_len);
+ p2p_random(params->passphrase, 8);
+ return 0;
+}
+
+
+void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer)
+{
+ struct p2p_go_neg_results res;
+ int go = peer->go_state == LOCAL_GO;
+ struct p2p_channels intersection;
+ int freqs;
+ size_t i, j;
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: GO Negotiation with " MACSTR " completed (%s will be "
+ "GO)", MAC2STR(peer->info.p2p_device_addr),
+ go ? "local end" : "peer");
+
+ os_memset(&res, 0, sizeof(res));
+ res.role_go = go;
+ os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr, ETH_ALEN);
+ os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN);
+ res.wps_method = peer->wps_method;
+ if (peer->flags & P2P_DEV_PREFER_PERSISTENT_GROUP)
+ res.persistent_group = 1;
+
+ if (go) {
+ /* Setup AP mode for WPS provisioning */
+ res.freq = p2p_channel_to_freq(p2p->cfg->country,
+ p2p->op_reg_class,
+ p2p->op_channel);
+ os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
+ res.ssid_len = p2p->ssid_len;
+ p2p_random(res.passphrase, 8);
+ } else {
+ res.freq = peer->oper_freq;
+ if (p2p->ssid_len) {
+ os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
+ res.ssid_len = p2p->ssid_len;
+ }
+ }
+
+ p2p_channels_intersect(&p2p->channels, &peer->channels,
+ &intersection);
+ freqs = 0;
+ for (i = 0; i < intersection.reg_classes; i++) {
+ struct p2p_reg_class *c = &intersection.reg_class[i];
+ if (freqs + 1 == P2P_MAX_CHANNELS)
+ break;
+ for (j = 0; j < c->channels; j++) {
+ int freq;
+ if (freqs + 1 == P2P_MAX_CHANNELS)
+ break;
+ freq = p2p_channel_to_freq(peer->country, c->reg_class,
+ c->channel[j]);
+ if (freq < 0)
+ continue;
+ res.freq_list[freqs++] = freq;
+ }
+ }
+
+ res.peer_config_timeout = go ? peer->client_timeout : peer->go_timeout;
+
+ p2p_clear_timeout(p2p);
+ peer->go_neg_req_sent = 0;
+ peer->wps_method = WPS_NOT_READY;
+
+ p2p_set_state(p2p, P2P_PROVISIONING);
+ p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
+}
+
+
+static void p2p_rx_p2p_action(struct p2p_data *p2p, const u8 *sa,
+ const u8 *data, size_t len, int rx_freq)
+{
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: RX P2P Public Action from " MACSTR, MAC2STR(sa));
+ wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Public Action contents", data, len);
+
+ if (len < 1)
+ return;
+
+ switch (data[0]) {
+ case P2P_GO_NEG_REQ:
+ p2p_process_go_neg_req(p2p, sa, data + 1, len - 1, rx_freq);
+ break;
+ case P2P_GO_NEG_RESP:
+ p2p_process_go_neg_resp(p2p, sa, data + 1, len - 1, rx_freq);
+ break;
+ case P2P_GO_NEG_CONF:
+ p2p_process_go_neg_conf(p2p, sa, data + 1, len - 1);
+ break;
+ case P2P_INVITATION_REQ:
+ p2p_process_invitation_req(p2p, sa, data + 1, len - 1,
+ rx_freq);
+ break;
+ case P2P_INVITATION_RESP:
+ p2p_process_invitation_resp(p2p, sa, data + 1, len - 1);
+ break;
+ case P2P_PROV_DISC_REQ:
+ p2p_process_prov_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
+ break;
+ case P2P_PROV_DISC_RESP:
+ p2p_process_prov_disc_resp(p2p, sa, data + 1, len - 1);
+ break;
+ case P2P_DEV_DISC_REQ:
+ p2p_process_dev_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
+ break;
+ case P2P_DEV_DISC_RESP:
+ p2p_process_dev_disc_resp(p2p, sa, data + 1, len - 1);
+ break;
+ default:
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Unsupported P2P Public Action frame type %d",
+ data[0]);
+ break;
+ }
+}
+
+
+void p2p_rx_action_public(struct p2p_data *p2p, const u8 *da, const u8 *sa,
+ const u8 *bssid, const u8 *data, size_t len,
+ int freq)
+{
+ if (len < 1)
+ return;
+
+ switch (data[0]) {
+ case WLAN_PA_VENDOR_SPECIFIC:
+ data++;
+ len--;
+ if (len < 3)
+ return;
+ if (WPA_GET_BE24(data) != OUI_WFA)
+ return;
+
+ data += 3;
+ len -= 3;
+ if (len < 1)
+ return;
+
+ if (*data != P2P_OUI_TYPE)
+ return;
+
+ p2p_rx_p2p_action(p2p, sa, data + 1, len - 1, freq);
+ break;
+ case WLAN_PA_GAS_INITIAL_REQ:
+ p2p_rx_gas_initial_req(p2p, sa, data + 1, len - 1, freq);
+ break;
+ case WLAN_PA_GAS_INITIAL_RESP:
+ p2p_rx_gas_initial_resp(p2p, sa, data + 1, len - 1, freq);
+ break;
+ case WLAN_PA_GAS_COMEBACK_REQ:
+ p2p_rx_gas_comeback_req(p2p, sa, data + 1, len - 1, freq);
+ break;
+ case WLAN_PA_GAS_COMEBACK_RESP:
+ p2p_rx_gas_comeback_resp(p2p, sa, data + 1, len - 1, freq);
+ break;
+ }
+}
+
+
+void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
+ const u8 *bssid, u8 category,
+ const u8 *data, size_t len, int freq)
+{
+ if (category == WLAN_ACTION_PUBLIC) {
+ p2p_rx_action_public(p2p, da, sa, bssid, data, len, freq);
+ return;
+ }
+
+ if (category != WLAN_ACTION_VENDOR_SPECIFIC)
+ return;
+
+ if (len < 4)
+ return;
+
+ if (WPA_GET_BE24(data) != OUI_WFA)
+ return;
+ data += 3;
+ len -= 3;
+
+ if (*data != P2P_OUI_TYPE)
+ return;
+ data++;
+ len--;
+
+ /* P2P action frame */
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: RX P2P Action from " MACSTR, MAC2STR(sa));
+ wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Action contents", data, len);
+
+ if (len < 1)
+ return;
+ switch (data[0]) {
+ case P2P_NOA:
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Received P2P Action - Notice of Absence");
+ /* TODO */
+ break;
+ case P2P_PRESENCE_REQ:
+ p2p_process_presence_req(p2p, da, sa, data + 1, len - 1, freq);
+ break;
+ case P2P_PRESENCE_RESP:
+ p2p_process_presence_resp(p2p, da, sa, data + 1, len - 1);
+ break;
+ case P2P_GO_DISC_REQ:
+ p2p_process_go_disc_req(p2p, da, sa, data + 1, len - 1, freq);
+ break;
+ default:
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Received P2P Action - unknown type %u", data[0]);
+ break;
+ }
+}
+
+
+static void p2p_go_neg_start(void *eloop_ctx, void *timeout_ctx)
+{
+ struct p2p_data *p2p = eloop_ctx;
+ if (p2p->go_neg_peer == NULL)
+ return;
+ p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
+ p2p->go_neg_peer->status = P2P_SC_SUCCESS;
+ p2p_connect_send(p2p, p2p->go_neg_peer);
+}
+
+
+static void p2p_invite_start(void *eloop_ctx, void *timeout_ctx)
+{
+ struct p2p_data *p2p = eloop_ctx;
+ if (p2p->invite_peer == NULL)
+ return;
+ p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
+ p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr);
+}
+
+
+static void p2p_add_dev_from_probe_req(struct p2p_data *p2p, const u8 *addr,
+ const u8 *ie, size_t ie_len)
+{
+ struct p2p_message msg;
+ struct p2p_device *dev;
+
+ os_memset(&msg, 0, sizeof(msg));
+ if (p2p_parse_ies(ie, ie_len, &msg) < 0 || msg.p2p_attributes == NULL)
+ {
+ p2p_parse_free(&msg);
+ return; /* not a P2P probe */
+ }
+
+ if (msg.ssid == NULL || msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
+ os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
+ != 0) {
+ /* The Probe Request is not part of P2P Device Discovery. It is
+ * not known whether the source address of the frame is the P2P
+ * Device Address or P2P Interface Address. Do not add a new
+ * peer entry based on this frames.
+ */
+ p2p_parse_free(&msg);
+ return;
+ }
+
+ dev = p2p_get_device(p2p, addr);
+ if (dev) {
+ if (dev->country[0] == 0 && msg.listen_channel)
+ os_memcpy(dev->country, msg.listen_channel, 3);
+ p2p_parse_free(&msg);
+ return; /* already known */
+ }
+
+ dev = p2p_create_device(p2p, addr);
+ if (dev == NULL) {
+ p2p_parse_free(&msg);
+ return;
+ }
+
+ os_get_time(&dev->last_seen);
+ dev->flags |= P2P_DEV_PROBE_REQ_ONLY;
+
+ if (msg.listen_channel) {
+ os_memcpy(dev->country, msg.listen_channel, 3);
+ dev->listen_freq = p2p_channel_to_freq(dev->country,
+ msg.listen_channel[3],
+ msg.listen_channel[4]);
+ }
+
+ p2p_copy_wps_info(dev, 1, &msg);
+
+ p2p_parse_free(&msg);
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Created device entry based on Probe Req: " MACSTR
+ " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
+ MAC2STR(dev->info.p2p_device_addr), dev->info.dev_capab,
+ dev->info.group_capab, dev->info.device_name,
+ dev->listen_freq);
+}
+
+
+struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
+ const u8 *addr,
+ struct p2p_message *msg)
+{
+ struct p2p_device *dev;
+
+ dev = p2p_get_device(p2p, addr);
+ if (dev) {
+ os_get_time(&dev->last_seen);
+ return dev; /* already known */
+ }
+
+ dev = p2p_create_device(p2p, addr);
+ if (dev == NULL)
+ return NULL;
+
+ p2p_add_dev_info(p2p, addr, dev, msg);
+
+ return dev;
+}
+
+
+static int dev_type_match(const u8 *dev_type, const u8 *req_dev_type)
+{
+ if (os_memcmp(dev_type, req_dev_type, WPS_DEV_TYPE_LEN) == 0)
+ return 1;
+ if (os_memcmp(dev_type, req_dev_type, 2) == 0 &&
+ WPA_GET_BE32(&req_dev_type[2]) == 0 &&
+ WPA_GET_BE16(&req_dev_type[6]) == 0)
+ return 1; /* Category match with wildcard OUI/sub-category */
+ return 0;
+}
+
+
+int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
+ size_t num_req_dev_type)
+{
+ size_t i;
+ for (i = 0; i < num_req_dev_type; i++) {
+ if (dev_type_match(dev_type, req_dev_type[i]))
+ return 1;
+ }
+ return 0;
+}
+
+
+/**
+ * p2p_match_dev_type - Match local device type with requested type
+ * @p2p: P2P module context from p2p_init()
+ * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
+ * Returns: 1 on match, 0 on mismatch
+ *
+ * This function can be used to match the Requested Device Type attribute in
+ * WPS IE with the local device types for deciding whether to reply to a Probe
+ * Request frame.
+ */
+int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps)
+{
+ struct wps_parse_attr attr;
+ size_t i;
+
+ if (wps_parse_msg(wps, &attr))
+ return 1; /* assume no Requested Device Type attributes */
+
+ if (attr.num_req_dev_type == 0)
+ return 1; /* no Requested Device Type attributes -> match */
+
+ if (dev_type_list_match(p2p->cfg->pri_dev_type, attr.req_dev_type,
+ attr.num_req_dev_type))
+ return 1; /* Own Primary Device Type matches */
+
+ for (i = 0; i < p2p->cfg->num_sec_dev_types; i++)
+ if (dev_type_list_match(p2p->cfg->sec_dev_type[i],
+ attr.req_dev_type,
+ attr.num_req_dev_type))
+ return 1; /* Own Secondary Device Type matches */
+
+ /* No matching device type found */
+ return 0;
+}
+
+
+struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p)
+{
+ struct wpabuf *buf;
+ u8 *len;
+
+ buf = wpabuf_alloc(1000);
+ if (buf == NULL)
+ return NULL;
+
+ p2p_build_wps_ie(p2p, buf, DEV_PW_DEFAULT, 1);
+
+ /* P2P IE */
+ len = p2p_buf_add_ie_hdr(buf);
+ p2p_buf_add_capability(buf, p2p->dev_capab, 0);
+ if (p2p->ext_listen_interval)
+ p2p_buf_add_ext_listen_timing(buf, p2p->ext_listen_period,
+ p2p->ext_listen_interval);
+ p2p_buf_add_device_info(buf, p2p, NULL);
+ p2p_buf_update_ie_hdr(buf, len);
+
+ return buf;
+}
+
+
+static void p2p_reply_probe(struct p2p_data *p2p, const u8 *addr, const u8 *ie,
+ size_t ie_len)
+{
+ struct ieee802_11_elems elems;
+ struct wpabuf *buf;
+ struct ieee80211_mgmt *resp;
+ struct wpabuf *wps;
+ struct wpabuf *ies;
+
+ if (!p2p->in_listen || !p2p->drv_in_listen) {
+ /* not in Listen state - ignore Probe Request */
+ return;
+ }
+
+ if (ieee802_11_parse_elems((u8 *) ie, ie_len, &elems, 0) ==
+ ParseFailed) {
+ /* Ignore invalid Probe Request frames */
+ return;
+ }
+
+ if (elems.p2p == NULL) {
+ /* not a P2P probe - ignore it */
+ return;
+ }
+
+ if (elems.ssid == NULL || elems.ssid_len != P2P_WILDCARD_SSID_LEN ||
+ os_memcmp(elems.ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) !=
+ 0) {
+ /* not using P2P Wildcard SSID - ignore */
+ return;
+ }
+
+ /* Check Requested Device Type match */
+ wps = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
+ if (wps && !p2p_match_dev_type(p2p, wps)) {
+ wpabuf_free(wps);
+ /* No match with Requested Device Type */
+ return;
+ }
+ wpabuf_free(wps);
+
+ if (!p2p->cfg->send_probe_resp)
+ return; /* Response generated elsewhere */
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Reply to P2P Probe Request in Listen state");
+
+ /*
+ * We do not really have a specific BSS that this frame is advertising,
+ * so build a frame that has some information in valid format. This is
+ * really only used for discovery purposes, not to learn exact BSS
+ * parameters.
+ */
+ ies = p2p_build_probe_resp_ies(p2p);
+ if (ies == NULL)
+ return;
+
+ buf = wpabuf_alloc(200 + wpabuf_len(ies));
+ if (buf == NULL) {
+ wpabuf_free(ies);
+ return;
+ }
+
+ resp = NULL;
+ resp = wpabuf_put(buf, resp->u.probe_resp.variable - (u8 *) resp);
+
+ resp->frame_control = host_to_le16((WLAN_FC_TYPE_MGMT << 2) |
+ (WLAN_FC_STYPE_PROBE_RESP << 4));
+ os_memcpy(resp->da, addr, ETH_ALEN);
+ os_memcpy(resp->sa, p2p->cfg->dev_addr, ETH_ALEN);
+ os_memcpy(resp->bssid, p2p->cfg->dev_addr, ETH_ALEN);
+ resp->u.probe_resp.beacon_int = host_to_le16(100);
+ /* hardware or low-level driver will setup seq_ctrl and timestamp */
+ resp->u.probe_resp.capab_info =
+ host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE |
+ WLAN_CAPABILITY_PRIVACY |
+ WLAN_CAPABILITY_SHORT_SLOT_TIME);
+
+ wpabuf_put_u8(buf, WLAN_EID_SSID);
+ wpabuf_put_u8(buf, P2P_WILDCARD_SSID_LEN);
+ wpabuf_put_data(buf, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
+
+ wpabuf_put_u8(buf, WLAN_EID_SUPP_RATES);
+ wpabuf_put_u8(buf, 8);
+ wpabuf_put_u8(buf, (60 / 5) | 0x80);
+ wpabuf_put_u8(buf, 90 / 5);
+ wpabuf_put_u8(buf, (120 / 5) | 0x80);
+ wpabuf_put_u8(buf, 180 / 5);
+ wpabuf_put_u8(buf, (240 / 5) | 0x80);
+ wpabuf_put_u8(buf, 360 / 5);
+ wpabuf_put_u8(buf, 480 / 5);
+ wpabuf_put_u8(buf, 540 / 5);
+
+ wpabuf_put_u8(buf, WLAN_EID_DS_PARAMS);
+ wpabuf_put_u8(buf, 1);
+ wpabuf_put_u8(buf, p2p->cfg->channel);
+
+ wpabuf_put_buf(buf, ies);
+ wpabuf_free(ies);
+
+ p2p->cfg->send_probe_resp(p2p->cfg->cb_ctx, buf);
+
+ wpabuf_free(buf);
+}
+
+
+int p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *ie,
+ size_t ie_len)
+{
+ p2p_add_dev_from_probe_req(p2p, addr, ie, ie_len);
+
+ p2p_reply_probe(p2p, addr, ie, ie_len);
+
+ if ((p2p->state == P2P_CONNECT || p2p->state == P2P_CONNECT_LISTEN) &&
+ p2p->go_neg_peer &&
+ os_memcmp(addr, p2p->go_neg_peer->info.p2p_device_addr, ETH_ALEN)
+ == 0) {
+ /* Received a Probe Request from GO Negotiation peer */
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Found GO Negotiation peer - try to start GO "
+ "negotiation from timeout");
+ eloop_register_timeout(0, 0, p2p_go_neg_start, p2p, NULL);
+ return 1;
+ }
+
+ if ((p2p->state == P2P_INVITE || p2p->state == P2P_INVITE_LISTEN) &&
+ p2p->invite_peer &&
+ os_memcmp(addr, p2p->invite_peer->info.p2p_device_addr, ETH_ALEN)
+ == 0) {
+ /* Received a Probe Request from Invite peer */
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Found Invite peer - try to start Invite from "
+ "timeout");
+ eloop_register_timeout(0, 0, p2p_invite_start, p2p, NULL);
+ return 1;
+ }
+
+ return 0;
+}
+
+
+static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid,
+ u8 *buf, size_t len, struct wpabuf *p2p_ie)
+{
+ struct wpabuf *tmp;
+ u8 *lpos;
+ size_t tmplen;
+ int res;
+ u8 group_capab;
+
+ if (p2p_ie == NULL)
+ return 0; /* WLAN AP is not a P2P manager */
+
+ /*
+ * (Re)Association Request - P2P IE
+ * P2P Capability attribute (shall be present)
+ * P2P Interface attribute (present if concurrent device and
+ * P2P Management is enabled)
+ */
+ tmp = wpabuf_alloc(200);
+ if (tmp == NULL)
+ return -1;
+
+ lpos = p2p_buf_add_ie_hdr(tmp);
+ group_capab = 0;
+ if (p2p->num_groups > 0) {
+ group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER;
+ if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
+ (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED) &&
+ p2p->cross_connect)
+ group_capab |= P2P_GROUP_CAPAB_CROSS_CONN;
+ }
+ p2p_buf_add_capability(tmp, p2p->dev_capab, group_capab);
+ if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
+ (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED))
+ p2p_buf_add_p2p_interface(tmp, p2p);
+ p2p_buf_update_ie_hdr(tmp, lpos);
+
+ tmplen = wpabuf_len(tmp);
+ if (tmplen > len)
+ res = -1;
+ else {
+ os_memcpy(buf, wpabuf_head(tmp), tmplen);
+ res = tmplen;
+ }
+ wpabuf_free(tmp);
+
+ return res;
+}
+
+
+int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
+ size_t len, int p2p_group, struct wpabuf *p2p_ie)
+{
+ struct wpabuf *tmp;
+ u8 *lpos;
+ struct p2p_device *peer;
+ size_t tmplen;
+ int res;
+
+ if (!p2p_group)
+ return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len, p2p_ie);
+
+ /*
+ * (Re)Association Request - P2P IE
+ * P2P Capability attribute (shall be present)
+ * Extended Listen Timing (may be present)
+ * P2P Device Info attribute (shall be present)
+ */
+ tmp = wpabuf_alloc(200);
+ if (tmp == NULL)
+ return -1;
+
+ peer = bssid ? p2p_get_device(p2p, bssid) : NULL;
+
+ lpos = p2p_buf_add_ie_hdr(tmp);
+ p2p_buf_add_capability(tmp, p2p->dev_capab, 0);
+ if (p2p->ext_listen_interval)
+ p2p_buf_add_ext_listen_timing(tmp, p2p->ext_listen_period,
+ p2p->ext_listen_interval);
+ p2p_buf_add_device_info(tmp, p2p, peer);
+ p2p_buf_update_ie_hdr(tmp, lpos);
+
+ tmplen = wpabuf_len(tmp);
+ if (tmplen > len)
+ res = -1;
+ else {
+ os_memcpy(buf, wpabuf_head(tmp), tmplen);
+ res = tmplen;
+ }
+ wpabuf_free(tmp);
+
+ return res;
+}
+
+
+int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end)
+{
+ struct wpabuf *p2p_ie;
+ int ret;
+
+ p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, P2P_IE_VENDOR_TYPE);
+ if (p2p_ie == NULL)
+ return 0;
+
+ ret = p2p_attr_text(p2p_ie, buf, end);
+ wpabuf_free(p2p_ie);
+ return ret;
+}
+
+
+static void p2p_clear_go_neg(struct p2p_data *p2p)
+{
+ p2p->go_neg_peer = NULL;
+ p2p_clear_timeout(p2p);
+ p2p_set_state(p2p, P2P_IDLE);
+}
+
+
+void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr)
+{
+ if (p2p->go_neg_peer == NULL) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: No pending Group Formation - "
+ "ignore WPS registration success notification");
+ return; /* No pending Group Formation */
+ }
+
+ if (os_memcmp(mac_addr, p2p->go_neg_peer->intended_addr, ETH_ALEN) !=
+ 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Ignore WPS registration success notification "
+ "for " MACSTR " (GO Negotiation peer " MACSTR ")",
+ MAC2STR(mac_addr),
+ MAC2STR(p2p->go_neg_peer->intended_addr));
+ return; /* Ignore unexpected peer address */
+ }
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Group Formation completed successfully with " MACSTR,
+ MAC2STR(mac_addr));
+
+ p2p_clear_go_neg(p2p);
+}
+
+
+void p2p_group_formation_failed(struct p2p_data *p2p)
+{
+ if (p2p->go_neg_peer == NULL) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: No pending Group Formation - "
+ "ignore group formation failure notification");
+ return; /* No pending Group Formation */
+ }
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Group Formation failed with " MACSTR,
+ MAC2STR(p2p->go_neg_peer->intended_addr));
+
+ p2p_clear_go_neg(p2p);
+}
+
+
+struct p2p_data * p2p_init(const struct p2p_config *cfg)
+{
+ struct p2p_data *p2p;
+
+ if (cfg->max_peers < 1)
+ return NULL;
+
+ p2p = os_zalloc(sizeof(*p2p) + sizeof(*cfg));
+ if (p2p == NULL)
+ return NULL;
+ p2p->cfg = (struct p2p_config *) (p2p + 1);
+ os_memcpy(p2p->cfg, cfg, sizeof(*cfg));
+ if (cfg->dev_name)
+ p2p->cfg->dev_name = os_strdup(cfg->dev_name);
+ if (cfg->manufacturer)
+ p2p->cfg->manufacturer = os_strdup(cfg->manufacturer);
+ if (cfg->model_name)
+ p2p->cfg->model_name = os_strdup(cfg->model_name);
+ if (cfg->model_number)
+ p2p->cfg->model_number = os_strdup(cfg->model_number);
+ if (cfg->serial_number)
+ p2p->cfg->serial_number = os_strdup(cfg->serial_number);
+
+ p2p->min_disc_int = 1;
+ p2p->max_disc_int = 3;
+
+ os_get_random(&p2p->next_tie_breaker, 1);
+ p2p->next_tie_breaker &= 0x01;
+ if (cfg->sd_request)
+ p2p->dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
+ p2p->dev_capab |= P2P_DEV_CAPAB_INVITATION_PROCEDURE;
+ if (cfg->concurrent_operations)
+ p2p->dev_capab |= P2P_DEV_CAPAB_CONCURRENT_OPER;
+ p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
+
+ dl_list_init(&p2p->devices);
+
+ eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
+ p2p_expiration_timeout, p2p, NULL);
+
+ return p2p;
+}
+
+
+void p2p_deinit(struct p2p_data *p2p)
+{
+ eloop_cancel_timeout(p2p_expiration_timeout, p2p, NULL);
+ eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
+ eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
+ p2p_flush(p2p);
+ p2p_free_req_dev_types(p2p);
+ os_free(p2p->cfg->dev_name);
+ os_free(p2p->cfg->manufacturer);
+ os_free(p2p->cfg->model_name);
+ os_free(p2p->cfg->model_number);
+ os_free(p2p->cfg->serial_number);
+ os_free(p2p->groups);
+ wpabuf_free(p2p->sd_resp);
+ os_free(p2p->after_scan_tx);
+ p2p_remove_wps_vendor_extensions(p2p);
+ os_free(p2p);
+}
+
+
+void p2p_flush(struct p2p_data *p2p)
+{
+ struct p2p_device *dev, *prev;
+ p2p_clear_timeout(p2p);
+ p2p_set_state(p2p, P2P_IDLE);
+ p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
+ p2p->go_neg_peer = NULL;
+ eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
+ dl_list_for_each_safe(dev, prev, &p2p->devices, struct p2p_device,
+ list) {
+ dl_list_del(&dev->list);
+ p2p_device_free(p2p, dev);
+ }
+ p2p_free_sd_queries(p2p);
+ os_free(p2p->after_scan_tx);
+ p2p->after_scan_tx = NULL;
+}
+
+
+int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr)
+{
+ struct p2p_device *dev;
+
+ dev = p2p_get_device(p2p, addr);
+ if (dev == NULL)
+ return -1;
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Unauthorizing " MACSTR,
+ MAC2STR(addr));
+
+ if (p2p->go_neg_peer == dev)
+ p2p->go_neg_peer = NULL;
+
+ dev->wps_method = WPS_NOT_READY;
+ dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
+ dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
+
+ /* Check if after_scan_tx is for this peer. If so free it */
+ if (p2p->after_scan_tx &&
+ os_memcmp(addr, p2p->after_scan_tx->dst, ETH_ALEN) == 0) {
+ os_free(p2p->after_scan_tx);
+ p2p->after_scan_tx = NULL;
+ }
+
+ return 0;
+}
+
+
+int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name)
+{
+ os_free(p2p->cfg->dev_name);
+ if (dev_name) {
+ p2p->cfg->dev_name = os_strdup(dev_name);
+ if (p2p->cfg->dev_name == NULL)
+ return -1;
+ } else
+ p2p->cfg->dev_name = NULL;
+ return 0;
+}
+
+
+int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer)
+{
+ os_free(p2p->cfg->manufacturer);
+ p2p->cfg->manufacturer = NULL;
+ if (manufacturer) {
+ p2p->cfg->manufacturer = os_strdup(manufacturer);
+ if (p2p->cfg->manufacturer == NULL)
+ return -1;
+ }
+
+ return 0;
+}
+
+
+int p2p_set_model_name(struct p2p_data *p2p, const char *model_name)
+{
+ os_free(p2p->cfg->model_name);
+ p2p->cfg->model_name = NULL;
+ if (model_name) {
+ p2p->cfg->model_name = os_strdup(model_name);
+ if (p2p->cfg->model_name == NULL)
+ return -1;
+ }
+
+ return 0;
+}
+
+
+int p2p_set_model_number(struct p2p_data *p2p, const char *model_number)
+{
+ os_free(p2p->cfg->model_number);
+ p2p->cfg->model_number = NULL;
+ if (model_number) {
+ p2p->cfg->model_number = os_strdup(model_number);
+ if (p2p->cfg->model_number == NULL)
+ return -1;
+ }
+
+ return 0;
+}
+
+
+int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number)
+{
+ os_free(p2p->cfg->serial_number);
+ p2p->cfg->serial_number = NULL;
+ if (serial_number) {
+ p2p->cfg->serial_number = os_strdup(serial_number);
+ if (p2p->cfg->serial_number == NULL)
+ return -1;
+ }
+
+ return 0;
+}
+
+
+void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods)
+{
+ p2p->cfg->config_methods = config_methods;
+}
+
+
+void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid)
+{
+ os_memcpy(p2p->cfg->uuid, uuid, 16);
+}
+
+
+int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type)
+{
+ os_memcpy(p2p->cfg->pri_dev_type, pri_dev_type, 8);
+ return 0;
+}
+
+
+int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
+ size_t num_dev_types)
+{
+ if (num_dev_types > P2P_SEC_DEVICE_TYPES)
+ num_dev_types = P2P_SEC_DEVICE_TYPES;
+ p2p->cfg->num_sec_dev_types = num_dev_types;
+ os_memcpy(p2p->cfg->sec_dev_type, dev_types, num_dev_types * 8);
+ return 0;
+}
+
+
+void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p)
+{
+ int i;
+
+ for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
+ wpabuf_free(p2p->wps_vendor_ext[i]);
+ p2p->wps_vendor_ext[i] = NULL;
+ }
+}
+
+
+int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
+ const struct wpabuf *vendor_ext)
+{
+ int i;
+
+ if (vendor_ext == NULL)
+ return -1;
+
+ for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
+ if (p2p->wps_vendor_ext[i] == NULL)
+ break;
+ }
+ if (i >= P2P_MAX_WPS_VENDOR_EXT)
+ return -1;
+
+ p2p->wps_vendor_ext[i] = wpabuf_dup(vendor_ext);
+ if (p2p->wps_vendor_ext[i] == NULL)
+ return -1;
+
+ return 0;
+}
+
+
+int p2p_set_country(struct p2p_data *p2p, const char *country)
+{
+ os_memcpy(p2p->cfg->country, country, 3);
+ return 0;
+}
+
+
+void p2p_continue_find(struct p2p_data *p2p)
+{
+ struct p2p_device *dev;
+ p2p_set_state(p2p, P2P_SEARCH);
+ dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
+ if (dev->flags & P2P_DEV_SD_SCHEDULE) {
+ if (p2p_start_sd(p2p, dev) == 0)
+ return;
+ else
+ break;
+ } else if (dev->req_config_methods &&
+ !(dev->flags & P2P_DEV_PD_FOR_JOIN)) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send "
+ "pending Provisioning Discovery Request to "
+ MACSTR " (config methods 0x%x)",
+ MAC2STR(dev->info.p2p_device_addr),
+ dev->req_config_methods);
+ if (p2p_send_prov_disc_req(p2p, dev, 0) == 0)
+ return;
+ }
+ }
+
+ p2p_listen_in_find(p2p);
+}
+
+
+static void p2p_sd_cb(struct p2p_data *p2p, int success)
+{
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Service Discovery Query TX callback: success=%d",
+ success);
+ p2p->pending_action_state = P2P_NO_PENDING_ACTION;
+
+ if (!success) {
+ if (p2p->sd_peer) {
+ p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
+ p2p->sd_peer = NULL;
+ }
+ p2p_continue_find(p2p);
+ return;
+ }
+
+ if (p2p->sd_peer == NULL) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: No SD peer entry known");
+ p2p_continue_find(p2p);
+ return;
+ }
+
+ /* Wait for response from the peer */
+ p2p_set_state(p2p, P2P_SD_DURING_FIND);
+ p2p_set_timeout(p2p, 0, 200000);
+}
+
+static void p2p_prov_disc_cb(struct p2p_data *p2p, int success)
+{
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Provision Discovery Request TX callback: success=%d",
+ success);
+ p2p->pending_action_state = P2P_NO_PENDING_ACTION;
+
+ if (!success) {
+ if (p2p->state != P2P_IDLE)
+ p2p_continue_find(p2p);
+ return;
+ }
+
+ /* Wait for response from the peer */
+ if (p2p->state == P2P_SEARCH)
+ p2p_set_state(p2p, P2P_PD_DURING_FIND);
+ p2p_set_timeout(p2p, 0, 200000);
+}
+
+
+int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
+ int level, const u8 *ies, size_t ies_len)
+{
+ p2p_add_device(p2p, bssid, freq, level, ies, ies_len);
+
+ if (p2p->go_neg_peer && p2p->state == P2P_SEARCH &&
+ os_memcmp(p2p->go_neg_peer->info.p2p_device_addr, bssid, ETH_ALEN)
+ == 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Found GO Negotiation peer - try to start GO "
+ "negotiation");
+ p2p_connect_send(p2p, p2p->go_neg_peer);
+ return 1;
+ }
+
+ return 0;
+}
+
+
+void p2p_scan_res_handled(struct p2p_data *p2p)
+{
+ if (!p2p->p2p_scan_running) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: p2p_scan was not "
+ "running, but scan results received");
+ }
+ p2p->p2p_scan_running = 0;
+ eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
+
+ if (p2p_run_after_scan(p2p))
+ return;
+ if (p2p->state == P2P_SEARCH)
+ p2p_continue_find(p2p);
+}
+
+
+void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies)
+{
+ u8 *len = p2p_buf_add_ie_hdr(ies);
+ p2p_buf_add_capability(ies, p2p->dev_capab, 0);
+ if (p2p->cfg->reg_class && p2p->cfg->channel)
+ p2p_buf_add_listen_channel(ies, p2p->cfg->country,
+ p2p->cfg->reg_class,
+ p2p->cfg->channel);
+ if (p2p->ext_listen_interval)
+ p2p_buf_add_ext_listen_timing(ies, p2p->ext_listen_period,
+ p2p->ext_listen_interval);
+ /* TODO: p2p_buf_add_operating_channel() if GO */
+ p2p_buf_update_ie_hdr(ies, len);
+}
+
+
+int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end)
+{
+ return p2p_attr_text(p2p_ie, buf, end);
+}
+
+
+static void p2p_go_neg_req_cb(struct p2p_data *p2p, int success)
+{
+ struct p2p_device *dev = p2p->go_neg_peer;
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: GO Negotiation Request TX callback: success=%d",
+ success);
+
+ if (dev == NULL) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: No pending GO Negotiation");
+ return;
+ }
+
+ if (success) {
+ dev->go_neg_req_sent++;
+ if (dev->flags & P2P_DEV_USER_REJECTED) {
+ p2p_set_state(p2p, P2P_IDLE);
+ return;
+ }
+ }
+
+ if (!success &&
+ (dev->info.dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY) &&
+ !is_zero_ether_addr(dev->member_in_go_dev)) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Peer " MACSTR " did not acknowledge request - "
+ "try to use device discoverability through its GO",
+ MAC2STR(dev->info.p2p_device_addr));
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
+ p2p_send_dev_disc_req(p2p, dev);
+ return;
+ }
+
+ /*
+ * Use P2P find, if needed, to find the other device from its listen
+ * channel.
+ */
+ p2p_set_state(p2p, P2P_CONNECT);
+ p2p_set_timeout(p2p, 0, 100000);
+}
+
+
+static void p2p_go_neg_resp_cb(struct p2p_data *p2p, int success)
+{
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: GO Negotiation Response TX callback: success=%d",
+ success);
+ if (!p2p->go_neg_peer && p2p->state == P2P_PROVISIONING) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Ignore TX callback event - GO Negotiation is "
+ "not running anymore");
+ return;
+ }
+ p2p_set_state(p2p, P2P_CONNECT);
+ p2p_set_timeout(p2p, 0, 100000);
+}
+
+
+static void p2p_go_neg_resp_failure_cb(struct p2p_data *p2p, int success)
+{
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: GO Negotiation Response (failure) TX callback: "
+ "success=%d", success);
+ if (p2p->go_neg_peer && p2p->go_neg_peer->status != P2P_SC_SUCCESS) {
+ p2p_go_neg_failed(p2p, p2p->go_neg_peer,
+ p2p->go_neg_peer->status);
+ }
+}
+
+
+static void p2p_go_neg_conf_cb(struct p2p_data *p2p,
+ enum p2p_send_action_result result)
+{
+ struct p2p_device *dev;
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: GO Negotiation Confirm TX callback: result=%d",
+ result);
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
+ if (result == P2P_SEND_ACTION_FAILED) {
+ p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
+ return;
+ }
+ if (result == P2P_SEND_ACTION_NO_ACK) {
+ /*
+ * It looks like the TX status for GO Negotiation Confirm is
+ * often showing failure even when the peer has actually
+ * received the frame. Since the peer may change channels
+ * immediately after having received the frame, we may not see
+ * an Ack for retries, so just dropping a single frame may
+ * trigger this. To allow the group formation to succeed if the
+ * peer did indeed receive the frame, continue regardless of
+ * the TX status.
+ */
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Assume GO Negotiation Confirm TX was actually "
+ "received by the peer even though Ack was not "
+ "reported");
+ }
+
+ dev = p2p->go_neg_peer;
+ if (dev == NULL)
+ return;
+
+ p2p_go_complete(p2p, dev);
+}
+
+
+void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
+ const u8 *src, const u8 *bssid,
+ enum p2p_send_action_result result)
+{
+ enum p2p_pending_action_state state;
+ int success;
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Action frame TX callback (state=%d freq=%u dst=" MACSTR
+ " src=" MACSTR " bssid=" MACSTR " result=%d",
+ p2p->pending_action_state, freq, MAC2STR(dst), MAC2STR(src),
+ MAC2STR(bssid), result);
+ success = result == P2P_SEND_ACTION_SUCCESS;
+ state = p2p->pending_action_state;
+ p2p->pending_action_state = P2P_NO_PENDING_ACTION;
+ switch (state) {
+ case P2P_NO_PENDING_ACTION:
+ break;
+ case P2P_PENDING_GO_NEG_REQUEST:
+ p2p_go_neg_req_cb(p2p, success);
+ break;
+ case P2P_PENDING_GO_NEG_RESPONSE:
+ p2p_go_neg_resp_cb(p2p, success);
+ break;
+ case P2P_PENDING_GO_NEG_RESPONSE_FAILURE:
+ p2p_go_neg_resp_failure_cb(p2p, success);
+ break;
+ case P2P_PENDING_GO_NEG_CONFIRM:
+ p2p_go_neg_conf_cb(p2p, result);
+ break;
+ case P2P_PENDING_SD:
+ p2p_sd_cb(p2p, success);
+ break;
+ case P2P_PENDING_PD:
+ p2p_prov_disc_cb(p2p, success);
+ break;
+ case P2P_PENDING_INVITATION_REQUEST:
+ p2p_invitation_req_cb(p2p, success);
+ break;
+ case P2P_PENDING_INVITATION_RESPONSE:
+ p2p_invitation_resp_cb(p2p, success);
+ break;
+ case P2P_PENDING_DEV_DISC_REQUEST:
+ p2p_dev_disc_req_cb(p2p, success);
+ break;
+ case P2P_PENDING_DEV_DISC_RESPONSE:
+ p2p_dev_disc_resp_cb(p2p, success);
+ break;
+ case P2P_PENDING_GO_DISC_REQ:
+ p2p_go_disc_req_cb(p2p, success);
+ break;
+ }
+}
+
+
+void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
+ unsigned int duration)
+{
+ if (freq == p2p->pending_client_disc_freq) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Client discoverability remain-awake completed");
+ p2p->pending_client_disc_freq = 0;
+ return;
+ }
+
+ if (freq != p2p->pending_listen_freq) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Unexpected listen callback for freq=%u "
+ "duration=%u (pending_listen_freq=%u)",
+ freq, duration, p2p->pending_listen_freq);
+ return;
+ }
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Starting Listen timeout(%u,%u) on freq=%u based on "
+ "callback",
+ p2p->pending_listen_sec, p2p->pending_listen_usec,
+ p2p->pending_listen_freq);
+ p2p->in_listen = 1;
+ p2p->drv_in_listen = freq;
+ if (p2p->pending_listen_sec || p2p->pending_listen_usec) {
+ /*
+ * Add 20 msec extra wait to avoid race condition with driver
+ * remain-on-channel end event, i.e., give driver more time to
+ * complete the operation before our timeout expires.
+ */
+ p2p_set_timeout(p2p, p2p->pending_listen_sec,
+ p2p->pending_listen_usec + 20000);
+ }
+
+ p2p->pending_listen_freq = 0;
+}
+
+
+int p2p_listen_end(struct p2p_data *p2p, unsigned int freq)
+{
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver ended Listen "
+ "state (freq=%u)", freq);
+ p2p->drv_in_listen = 0;
+ if (p2p->in_listen)
+ return 0; /* Internal timeout will trigger the next step */
+
+ if (p2p->state == P2P_CONNECT_LISTEN && p2p->go_neg_peer) {
+ if (p2p->go_neg_peer->connect_reqs >= 120) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Timeout on sending GO Negotiation "
+ "Request without getting response");
+ p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
+ return 0;
+ }
+
+ p2p_set_state(p2p, P2P_CONNECT);
+ p2p_connect_send(p2p, p2p->go_neg_peer);
+ return 1;
+ } else if (p2p->state == P2P_SEARCH) {
+ p2p_search(p2p);
+ return 1;
+ }
+
+ return 0;
+}
+
+
+static void p2p_timeout_connect(struct p2p_data *p2p)
+{
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
+ p2p_set_state(p2p, P2P_CONNECT_LISTEN);
+ p2p_listen_in_find(p2p);
+}
+
+
+static void p2p_timeout_connect_listen(struct p2p_data *p2p)
+{
+ if (p2p->go_neg_peer) {
+ if (p2p->drv_in_listen) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Driver is "
+ "still in Listen state; wait for it to "
+ "complete");
+ return;
+ }
+
+ if (p2p->go_neg_peer->connect_reqs >= 120) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Timeout on sending GO Negotiation "
+ "Request without getting response");
+ p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
+ return;
+ }
+
+ p2p_set_state(p2p, P2P_CONNECT);
+ p2p_connect_send(p2p, p2p->go_neg_peer);
+ } else
+ p2p_set_state(p2p, P2P_IDLE);
+}
+
+
+static void p2p_timeout_wait_peer_connect(struct p2p_data *p2p)
+{
+ /*
+ * TODO: could remain constantly in Listen state for some time if there
+ * are no other concurrent uses for the radio. For now, go to listen
+ * state once per second to give other uses a chance to use the radio.
+ */
+ p2p_set_state(p2p, P2P_WAIT_PEER_IDLE);
+ p2p_set_timeout(p2p, 1, 0);
+}
+
+
+static void p2p_timeout_wait_peer_idle(struct p2p_data *p2p)
+{
+ struct p2p_device *dev = p2p->go_neg_peer;
+
+ if (dev == NULL) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Unknown GO Neg peer - stop GO Neg wait");
+ return;
+ }
+
+ dev->wait_count++;
+ if (dev->wait_count >= 120) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Timeout on waiting peer to become ready for GO "
+ "Negotiation");
+ p2p_go_neg_failed(p2p, dev, -1);
+ return;
+ }
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Go to Listen state while waiting for the peer to become "
+ "ready for GO Negotiation");
+ p2p_set_state(p2p, P2P_WAIT_PEER_CONNECT);
+ p2p_listen_in_find(p2p);
+}
+
+
+static void p2p_timeout_sd_during_find(struct p2p_data *p2p)
+{
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Service Discovery Query timeout");
+ if (p2p->sd_peer) {
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
+ p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE;
+ p2p->sd_peer = NULL;
+ }
+ p2p_continue_find(p2p);
+}
+
+
+static void p2p_timeout_prov_disc_during_find(struct p2p_data *p2p)
+{
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Provision Discovery Request timeout");
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
+ p2p_continue_find(p2p);
+}
+
+
+static void p2p_timeout_invite(struct p2p_data *p2p)
+{
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
+ p2p_set_state(p2p, P2P_INVITE_LISTEN);
+ if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) {
+ /*
+ * Better remain on operating channel instead of listen channel
+ * when running a group.
+ */
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Inviting in "
+ "active GO role - wait on operating channel");
+ p2p_set_timeout(p2p, 0, 100000);
+ return;
+ }
+ p2p_listen_in_find(p2p);
+}
+
+
+static void p2p_timeout_invite_listen(struct p2p_data *p2p)
+{
+ if (p2p->invite_peer && p2p->invite_peer->invitation_reqs < 100) {
+ p2p_set_state(p2p, P2P_INVITE);
+ p2p_invite_send(p2p, p2p->invite_peer,
+ p2p->invite_go_dev_addr);
+ } else {
+ if (p2p->invite_peer) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Invitation Request retry limit reached");
+ if (p2p->cfg->invitation_result)
+ p2p->cfg->invitation_result(
+ p2p->cfg->cb_ctx, -1, NULL);
+ }
+ p2p_set_state(p2p, P2P_IDLE);
+ }
+}
+
+
+static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx)
+{
+ struct p2p_data *p2p = eloop_ctx;
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Timeout (state=%s)",
+ p2p_state_txt(p2p->state));
+
+ p2p->in_listen = 0;
+
+ switch (p2p->state) {
+ case P2P_IDLE:
+ break;
+ case P2P_SEARCH:
+ p2p_search(p2p);
+ break;
+ case P2P_CONNECT:
+ p2p_timeout_connect(p2p);
+ break;
+ case P2P_CONNECT_LISTEN:
+ p2p_timeout_connect_listen(p2p);
+ break;
+ case P2P_GO_NEG:
+ break;
+ case P2P_LISTEN_ONLY:
+ if (p2p->ext_listen_only) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Extended Listen Timing - Listen State "
+ "completed");
+ p2p->ext_listen_only = 0;
+ p2p_set_state(p2p, P2P_IDLE);
+ }
+ break;
+ case P2P_WAIT_PEER_CONNECT:
+ p2p_timeout_wait_peer_connect(p2p);
+ break;
+ case P2P_WAIT_PEER_IDLE:
+ p2p_timeout_wait_peer_idle(p2p);
+ break;
+ case P2P_SD_DURING_FIND:
+ p2p_timeout_sd_during_find(p2p);
+ break;
+ case P2P_PROVISIONING:
+ break;
+ case P2P_PD_DURING_FIND:
+ p2p_timeout_prov_disc_during_find(p2p);
+ break;
+ case P2P_INVITE:
+ p2p_timeout_invite(p2p);
+ break;
+ case P2P_INVITE_LISTEN:
+ p2p_timeout_invite_listen(p2p);
+ break;
+ }
+}
+
+
+int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr)
+{
+ struct p2p_device *dev;
+
+ dev = p2p_get_device(p2p, peer_addr);
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Local request to reject "
+ "connection attempts by peer " MACSTR, MAC2STR(peer_addr));
+ if (dev == NULL) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Peer " MACSTR
+ " unknown", MAC2STR(peer_addr));
+ return -1;
+ }
+ dev->status = P2P_SC_FAIL_REJECTED_BY_USER;
+ dev->flags |= P2P_DEV_USER_REJECTED;
+ return 0;
+}
+
+
+static const char * p2p_wps_method_text(enum p2p_wps_method method)
+{
+ switch (method) {
+ case WPS_NOT_READY:
+ return "not-ready";
+ case WPS_PIN_LABEL:
+ return "Label";
+ case WPS_PIN_DISPLAY:
+ return "Display";
+ case WPS_PIN_KEYPAD:
+ return "Keypad";
+ case WPS_PBC:
+ return "PBC";
+ }
+
+ return "??";
+}
+
+
+static const char * p2p_go_state_text(enum p2p_go_state go_state)
+{
+ switch (go_state) {
+ case UNKNOWN_GO:
+ return "unknown";
+ case LOCAL_GO:
+ return "local";
+ case REMOTE_GO:
+ return "remote";
+ }
+
+ return "??";
+}
+
+
+int p2p_get_peer_info(struct p2p_data *p2p, const u8 *addr, int next,
+ char *buf, size_t buflen)
+{
+ struct p2p_device *dev;
+ int res;
+ char *pos, *end;
+ struct os_time now;
+ char devtype[WPS_DEV_TYPE_BUFSIZE];
+
+ if (addr)
+ dev = p2p_get_device(p2p, addr);
+ else
+ dev = dl_list_first(&p2p->devices, struct p2p_device, list);
+
+ if (dev && next) {
+ dev = dl_list_first(&dev->list, struct p2p_device, list);
+ if (&dev->list == &p2p->devices)
+ dev = NULL;
+ }
+
+ if (dev == NULL)
+ return -1;
+
+ pos = buf;
+ end = buf + buflen;
+
+ res = os_snprintf(pos, end - pos, MACSTR "\n",
+ MAC2STR(dev->info.p2p_device_addr));
+ if (res < 0 || res >= end - pos)
+ return pos - buf;
+ pos += res;
+
+ os_get_time(&now);
+ res = os_snprintf(pos, end - pos,
+ "age=%d\n"
+ "listen_freq=%d\n"
+ "level=%d\n"
+ "wps_method=%s\n"
+ "interface_addr=" MACSTR "\n"
+ "member_in_go_dev=" MACSTR "\n"
+ "member_in_go_iface=" MACSTR "\n"
+ "pri_dev_type=%s\n"
+ "device_name=%s\n"
+ "manufacturer=%s\n"
+ "model_name=%s\n"
+ "model_number=%s\n"
+ "serial_number=%s\n"
+ "config_methods=0x%x\n"
+ "dev_capab=0x%x\n"
+ "group_capab=0x%x\n"
+ "go_neg_req_sent=%d\n"
+ "go_state=%s\n"
+ "dialog_token=%u\n"
+ "intended_addr=" MACSTR "\n"
+ "country=%c%c\n"
+ "oper_freq=%d\n"
+ "req_config_methods=0x%x\n"
+ "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
+ "status=%d\n"
+ "wait_count=%u\n"
+ "invitation_reqs=%u\n",
+ (int) (now.sec - dev->last_seen.sec),
+ dev->listen_freq,
+ dev->level,
+ p2p_wps_method_text(dev->wps_method),
+ MAC2STR(dev->interface_addr),
+ MAC2STR(dev->member_in_go_dev),
+ MAC2STR(dev->member_in_go_iface),
+ wps_dev_type_bin2str(dev->info.pri_dev_type,
+ devtype, sizeof(devtype)),
+ dev->info.device_name,
+ dev->info.manufacturer,
+ dev->info.model_name,
+ dev->info.model_number,
+ dev->info.serial_number,
+ dev->info.config_methods,
+ dev->info.dev_capab,
+ dev->info.group_capab,
+ dev->go_neg_req_sent,
+ p2p_go_state_text(dev->go_state),
+ dev->dialog_token,
+ MAC2STR(dev->intended_addr),
+ dev->country[0] ? dev->country[0] : '_',
+ dev->country[1] ? dev->country[1] : '_',
+ dev->oper_freq,
+ dev->req_config_methods,
+ dev->flags & P2P_DEV_PROBE_REQ_ONLY ?
+ "[PROBE_REQ_ONLY]" : "",
+ dev->flags & P2P_DEV_REPORTED ? "[REPORTED]" : "",
+ dev->flags & P2P_DEV_NOT_YET_READY ?
+ "[NOT_YET_READY]" : "",
+ dev->flags & P2P_DEV_SD_INFO ? "[SD_INFO]" : "",
+ dev->flags & P2P_DEV_SD_SCHEDULE ? "[SD_SCHEDULE]" :
+ "",
+ dev->flags & P2P_DEV_PD_PEER_DISPLAY ?
+ "[PD_PEER_DISPLAY]" : "",
+ dev->flags & P2P_DEV_PD_PEER_KEYPAD ?
+ "[PD_PEER_KEYPAD]" : "",
+ dev->flags & P2P_DEV_USER_REJECTED ?
+ "[USER_REJECTED]" : "",
+ dev->flags & P2P_DEV_PEER_WAITING_RESPONSE ?
+ "[PEER_WAITING_RESPONSE]" : "",
+ dev->flags & P2P_DEV_PREFER_PERSISTENT_GROUP ?
+ "[PREFER_PERSISTENT_GROUP]" : "",
+ dev->flags & P2P_DEV_WAIT_GO_NEG_RESPONSE ?
+ "[WAIT_GO_NEG_RESPONSE]" : "",
+ dev->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM ?
+ "[WAIT_GO_NEG_CONFIRM]" : "",
+ dev->flags & P2P_DEV_GROUP_CLIENT_ONLY ?
+ "[GROUP_CLIENT_ONLY]" : "",
+ dev->flags & P2P_DEV_FORCE_FREQ ?
+ "[FORCE_FREQ]" : "",
+ dev->flags & P2P_DEV_PD_FOR_JOIN ?
+ "[PD_FOR_JOIN]" : "",
+ dev->status,
+ dev->wait_count,
+ dev->invitation_reqs);
+ if (res < 0 || res >= end - pos)
+ return pos - buf;
+ pos += res;
+
+ if (dev->ext_listen_period) {
+ res = os_snprintf(pos, end - pos,
+ "ext_listen_period=%u\n"
+ "ext_listen_interval=%u\n",
+ dev->ext_listen_period,
+ dev->ext_listen_interval);
+ if (res < 0 || res >= end - pos)
+ return pos - buf;
+ pos += res;
+ }
+
+ if (dev->oper_ssid_len) {
+ res = os_snprintf(pos, end - pos,
+ "oper_ssid=%s\n",
+ wpa_ssid_txt(dev->oper_ssid,
+ dev->oper_ssid_len));
+ if (res < 0 || res >= end - pos)
+ return pos - buf;
+ pos += res;
+ }
+
+ return pos - buf;
+}
+
+
+void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled)
+{
+ if (enabled) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Client "
+ "discoverability enabled");
+ p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
+ } else {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Client "
+ "discoverability disabled");
+ p2p->dev_capab &= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
+ }
+}
+
+
+static struct wpabuf * p2p_build_presence_req(u32 duration1, u32 interval1,
+ u32 duration2, u32 interval2)
+{
+ struct wpabuf *req;
+ struct p2p_noa_desc desc1, desc2, *ptr1 = NULL, *ptr2 = NULL;
+ u8 *len;
+
+ req = wpabuf_alloc(100);
+ if (req == NULL)
+ return NULL;
+
+ if (duration1 || interval1) {
+ os_memset(&desc1, 0, sizeof(desc1));
+ desc1.count_type = 1;
+ desc1.duration = duration1;
+ desc1.interval = interval1;
+ ptr1 = &desc1;
+
+ if (duration2 || interval2) {
+ os_memset(&desc2, 0, sizeof(desc2));
+ desc2.count_type = 2;
+ desc2.duration = duration2;
+ desc2.interval = interval2;
+ ptr2 = &desc2;
+ }
+ }
+
+ p2p_buf_add_action_hdr(req, P2P_PRESENCE_REQ, 1);
+ len = p2p_buf_add_ie_hdr(req);
+ p2p_buf_add_noa(req, 0, 0, 0, ptr1, ptr2);
+ p2p_buf_update_ie_hdr(req, len);
+
+ return req;
+}
+
+
+int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
+ const u8 *own_interface_addr, unsigned int freq,
+ u32 duration1, u32 interval1, u32 duration2,
+ u32 interval2)
+{
+ struct wpabuf *req;
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send Presence Request to "
+ "GO " MACSTR " (own interface " MACSTR ") freq=%u dur1=%u "
+ "int1=%u dur2=%u int2=%u",
+ MAC2STR(go_interface_addr), MAC2STR(own_interface_addr),
+ freq, duration1, interval1, duration2, interval2);
+
+ req = p2p_build_presence_req(duration1, interval1, duration2,
+ interval2);
+ if (req == NULL)
+ return -1;
+
+ p2p->pending_action_state = P2P_NO_PENDING_ACTION;
+ if (p2p_send_action(p2p, freq, go_interface_addr, own_interface_addr,
+ go_interface_addr,
+ wpabuf_head(req), wpabuf_len(req), 200) < 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Failed to send Action frame");
+ }
+ wpabuf_free(req);
+
+ return 0;
+}
+
+
+static struct wpabuf * p2p_build_presence_resp(u8 status, const u8 *noa,
+ size_t noa_len, u8 dialog_token)
+{
+ struct wpabuf *resp;
+ u8 *len;
+
+ resp = wpabuf_alloc(100 + noa_len);
+ if (resp == NULL)
+ return NULL;
+
+ p2p_buf_add_action_hdr(resp, P2P_PRESENCE_RESP, dialog_token);
+ len = p2p_buf_add_ie_hdr(resp);
+ p2p_buf_add_status(resp, status);
+ if (noa) {
+ wpabuf_put_u8(resp, P2P_ATTR_NOTICE_OF_ABSENCE);
+ wpabuf_put_le16(resp, noa_len);
+ wpabuf_put_data(resp, noa, noa_len);
+ } else
+ p2p_buf_add_noa(resp, 0, 0, 0, NULL, NULL);
+ p2p_buf_update_ie_hdr(resp, len);
+
+ return resp;
+}
+
+
+static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
+ const u8 *sa, const u8 *data, size_t len,
+ int rx_freq)
+{
+ struct p2p_message msg;
+ u8 status;
+ struct wpabuf *resp;
+ size_t g;
+ struct p2p_group *group = NULL;
+ int parsed = 0;
+ u8 noa[50];
+ int noa_len;
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Received P2P Action - P2P Presence Request");
+
+ for (g = 0; g < p2p->num_groups; g++) {
+ if (os_memcmp(da, p2p_group_get_interface_addr(p2p->groups[g]),
+ ETH_ALEN) == 0) {
+ group = p2p->groups[g];
+ break;
+ }
+ }
+ if (group == NULL) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Ignore P2P Presence Request for unknown group "
+ MACSTR, MAC2STR(da));
+ return;
+ }
+
+ if (p2p_parse(data, len, &msg) < 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Failed to parse P2P Presence Request");
+ status = P2P_SC_FAIL_INVALID_PARAMS;
+ goto fail;
+ }
+ parsed = 1;
+
+ if (msg.noa == NULL) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: No NoA attribute in P2P Presence Request");
+ status = P2P_SC_FAIL_INVALID_PARAMS;
+ goto fail;
+ }
+
+ status = p2p_group_presence_req(group, sa, msg.noa, msg.noa_len);
+
+fail:
+ if (p2p->cfg->get_noa)
+ noa_len = p2p->cfg->get_noa(p2p->cfg->cb_ctx, da, noa,
+ sizeof(noa));
+ else
+ noa_len = -1;
+ resp = p2p_build_presence_resp(status, noa_len > 0 ? noa : NULL,
+ noa_len > 0 ? noa_len : 0,
+ msg.dialog_token);
+ if (parsed)
+ p2p_parse_free(&msg);
+ if (resp == NULL)
+ return;
+
+ p2p->pending_action_state = P2P_NO_PENDING_ACTION;
+ if (p2p_send_action(p2p, rx_freq, sa, da, da,
+ wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Failed to send Action frame");
+ }
+ wpabuf_free(resp);
+}
+
+
+static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
+ const u8 *sa, const u8 *data, size_t len)
+{
+ struct p2p_message msg;
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Received P2P Action - P2P Presence Response");
+
+ if (p2p_parse(data, len, &msg) < 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Failed to parse P2P Presence Response");
+ return;
+ }
+
+ if (msg.status == NULL || msg.noa == NULL) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: No Status or NoA attribute in P2P Presence "
+ "Response");
+ p2p_parse_free(&msg);
+ return;
+ }
+
+ if (*msg.status) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: P2P Presence Request was rejected: status %u",
+ *msg.status);
+ p2p_parse_free(&msg);
+ return;
+ }
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: P2P Presence Request was accepted");
+ wpa_hexdump(MSG_DEBUG, "P2P: P2P Presence Response - NoA",
+ msg.noa, msg.noa_len);
+ /* TODO: process NoA */
+ p2p_parse_free(&msg);
+}
+
+
+static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx)
+{
+ struct p2p_data *p2p = eloop_ctx;
+
+ if (p2p->ext_listen_interval) {
+ /* Schedule next extended listen timeout */
+ eloop_register_timeout(p2p->ext_listen_interval_sec,
+ p2p->ext_listen_interval_usec,
+ p2p_ext_listen_timeout, p2p, NULL);
+ }
+
+ if (p2p->state == P2P_LISTEN_ONLY && p2p->ext_listen_only) {
+ /*
+ * This should not really happen, but it looks like the Listen
+ * command may fail is something else (e.g., a scan) was
+ * running at an inconvenient time. As a workaround, allow new
+ * Extended Listen operation to be started.
+ */
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Previous "
+ "Extended Listen operation had not been completed - "
+ "try again");
+ p2p->ext_listen_only = 0;
+ p2p_set_state(p2p, P2P_IDLE);
+ }
+
+ if (p2p->state != P2P_IDLE) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Skip Extended "
+ "Listen timeout in active state (%s)",
+ p2p_state_txt(p2p->state));
+ return;
+ }
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Extended Listen timeout");
+ p2p->ext_listen_only = 1;
+ if (p2p_listen(p2p, p2p->ext_listen_period) < 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Failed to start "
+ "Listen state for Extended Listen Timing");
+ p2p->ext_listen_only = 0;
+ }
+}
+
+
+int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
+ unsigned int interval)
+{
+ if (period > 65535 || interval > 65535 || period > interval ||
+ (period == 0 && interval > 0) || (period > 0 && interval == 0)) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Invalid Extended Listen Timing request: "
+ "period=%u interval=%u", period, interval);
+ return -1;
+ }
+
+ eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
+
+ if (interval == 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Disabling Extended Listen Timing");
+ p2p->ext_listen_period = 0;
+ p2p->ext_listen_interval = 0;
+ return 0;
+ }
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Enabling Extended Listen Timing: period %u msec, "
+ "interval %u msec", period, interval);
+ p2p->ext_listen_period = period;
+ p2p->ext_listen_interval = interval;
+ p2p->ext_listen_interval_sec = interval / 1000;
+ p2p->ext_listen_interval_usec = (interval % 1000) * 1000;
+
+ eloop_register_timeout(p2p->ext_listen_interval_sec,
+ p2p->ext_listen_interval_usec,
+ p2p_ext_listen_timeout, p2p, NULL);
+
+ return 0;
+}
+
+
+void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
+ const u8 *ie, size_t ie_len)
+{
+ struct p2p_message msg;
+
+ if (bssid == NULL || ie == NULL)
+ return;
+
+ os_memset(&msg, 0, sizeof(msg));
+ if (p2p_parse_ies(ie, ie_len, &msg))
+ return;
+ if (msg.minor_reason_code == NULL)
+ return;
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_INFO,
+ "P2P: Deauthentication notification BSSID " MACSTR
+ " reason_code=%u minor_reason_code=%u",
+ MAC2STR(bssid), reason_code, *msg.minor_reason_code);
+
+ p2p_parse_free(&msg);
+}
+
+
+void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
+ const u8 *ie, size_t ie_len)
+{
+ struct p2p_message msg;
+
+ if (bssid == NULL || ie == NULL)
+ return;
+
+ os_memset(&msg, 0, sizeof(msg));
+ if (p2p_parse_ies(ie, ie_len, &msg))
+ return;
+ if (msg.minor_reason_code == NULL)
+ return;
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_INFO,
+ "P2P: Disassociation notification BSSID " MACSTR
+ " reason_code=%u minor_reason_code=%u",
+ MAC2STR(bssid), reason_code, *msg.minor_reason_code);
+
+ p2p_parse_free(&msg);
+}
+
+
+void p2p_set_managed_oper(struct p2p_data *p2p, int enabled)
+{
+ if (enabled) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Managed P2P "
+ "Device operations enabled");
+ p2p->dev_capab |= P2P_DEV_CAPAB_INFRA_MANAGED;
+ } else {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Managed P2P "
+ "Device operations disabled");
+ p2p->dev_capab &= ~P2P_DEV_CAPAB_INFRA_MANAGED;
+ }
+}
+
+
+int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel)
+{
+ if (p2p_channel_to_freq(p2p->cfg->country, reg_class, channel) < 0)
+ return -1;
+
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Set Listen channel: "
+ "reg_class %u channel %u", reg_class, channel);
+ p2p->cfg->reg_class = reg_class;
+ p2p->cfg->channel = channel;
+
+ return 0;
+}
+
+
+int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len)
+{
+ wpa_hexdump_ascii(MSG_DEBUG, "P2P: New SSID postfix", postfix, len);
+ if (postfix == NULL) {
+ p2p->cfg->ssid_postfix_len = 0;
+ return 0;
+ }
+ if (len > sizeof(p2p->cfg->ssid_postfix))
+ return -1;
+ os_memcpy(p2p->cfg->ssid_postfix, postfix, len);
+ p2p->cfg->ssid_postfix_len = len;
+ return 0;
+}
+
+
+int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
+ u8 *iface_addr)
+{
+ struct p2p_device *dev = p2p_get_device(p2p, dev_addr);
+ if (dev == NULL || is_zero_ether_addr(dev->interface_addr))
+ return -1;
+ os_memcpy(iface_addr, dev->interface_addr, ETH_ALEN);
+ return 0;
+}
+
+
+int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
+ u8 *dev_addr)
+{
+ struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
+ if (dev == NULL)
+ return -1;
+ os_memcpy(dev_addr, dev->info.p2p_device_addr, ETH_ALEN);
+ return 0;
+}
+
+
+void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr)
+{
+ os_memcpy(p2p->peer_filter, addr, ETH_ALEN);
+ if (is_zero_ether_addr(p2p->peer_filter))
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Disable peer "
+ "filter");
+ else
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Enable peer "
+ "filter for " MACSTR, MAC2STR(p2p->peer_filter));
+}
+
+
+void p2p_set_cross_connect(struct p2p_data *p2p, int enabled)
+{
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Cross connection %s",
+ enabled ? "enabled" : "disabled");
+ if (p2p->cross_connect == enabled)
+ return;
+ p2p->cross_connect = enabled;
+ /* TODO: may need to tear down any action group where we are GO(?) */
+}
+
+
+int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr)
+{
+ struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
+ if (dev == NULL)
+ return -1;
+ if (dev->oper_freq <= 0)
+ return -1;
+ return dev->oper_freq;
+}
+
+
+void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled)
+{
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Intra BSS distribution %s",
+ enabled ? "enabled" : "disabled");
+ p2p->cfg->p2p_intra_bss = enabled;
+}
+
+
+void p2p_update_channel_list(struct p2p_data *p2p, struct p2p_channels *chan)
+{
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Update channel list");
+ os_memcpy(&p2p->cfg->channels, chan, sizeof(struct p2p_channels));
+}
+
+
+int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
+ const u8 *src, const u8 *bssid, const u8 *buf,
+ size_t len, unsigned int wait_time)
+{
+ if (p2p->p2p_scan_running) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Delay Action "
+ "frame TX until p2p_scan completes");
+ if (p2p->after_scan_tx) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Dropped "
+ "previous pending Action frame TX");
+ os_free(p2p->after_scan_tx);
+ }
+ p2p->after_scan_tx = os_malloc(sizeof(*p2p->after_scan_tx) +
+ len);
+ if (p2p->after_scan_tx == NULL)
+ return -1;
+ p2p->after_scan_tx->freq = freq;
+ os_memcpy(p2p->after_scan_tx->dst, dst, ETH_ALEN);
+ os_memcpy(p2p->after_scan_tx->src, src, ETH_ALEN);
+ os_memcpy(p2p->after_scan_tx->bssid, bssid, ETH_ALEN);
+ p2p->after_scan_tx->len = len;
+ p2p->after_scan_tx->wait_time = wait_time;
+ os_memcpy(p2p->after_scan_tx + 1, buf, len);
+ return 0;
+ }
+
+ return p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, dst, src, bssid,
+ buf, len, wait_time);
+}
+
+
+void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
+ int freq_overall)
+{
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Best channel: 2.4 GHz: %d,"
+ " 5 GHz: %d, overall: %d", freq_24, freq_5, freq_overall);
+ p2p->best_freq_24 = freq_24;
+ p2p->best_freq_5 = freq_5;
+ p2p->best_freq_overall = freq_overall;
+}
+
+
+const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p)
+{
+ if (p2p == NULL || p2p->go_neg_peer == NULL)
+ return NULL;
+ return p2p->go_neg_peer->info.p2p_device_addr;
+}
+
+
+const struct p2p_peer_info *
+p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next)
+{
+ struct p2p_device *dev;
+
+ if (addr) {
+ dev = p2p_get_device(p2p, addr);
+ if (!dev)
+ return NULL;
+
+ if (!next) {
+ if (dev->flags & P2P_DEV_PROBE_REQ_ONLY)
+ return NULL;
+
+ return &dev->info;
+ } else {
+ do {
+ dev = dl_list_first(&dev->list,
+ struct p2p_device,
+ list);
+ if (&dev->list == &p2p->devices)
+ return NULL;
+ } while (dev->flags & P2P_DEV_PROBE_REQ_ONLY);
+ }
+ } else {
+ dev = dl_list_first(&p2p->devices, struct p2p_device, list);
+ if (!dev)
+ return NULL;
+ while (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
+ dev = dl_list_first(&dev->list,
+ struct p2p_device,
+ list);
+ if (&dev->list == &p2p->devices)
+ return NULL;
+ }
+ }
+
+ return &dev->info;
+}