ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/package/kernel/asr-wl/asr-hostapd/asr-hostapd-2023-06-22/src/p2p/p2p.c b/package/kernel/asr-wl/asr-hostapd/asr-hostapd-2023-06-22/src/p2p/p2p.c
new file mode 100644
index 0000000..39af1b9
--- /dev/null
+++ b/package/kernel/asr-wl/asr-hostapd/asr-hostapd-2023-06-22/src/p2p/p2p.c
@@ -0,0 +1,5671 @@
+/*
+ * Wi-Fi Direct - P2P module
+ * Copyright (c) 2009-2010, Atheros Communications
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "includes.h"
+
+#include "common.h"
+#include "eloop.h"
+#include "common/defs.h"
+#include "common/ieee802_11_defs.h"
+#include "common/ieee802_11_common.h"
+#include "common/wpa_ctrl.h"
+#include "crypto/sha256.h"
+#include "crypto/crypto.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
+ */
+#ifndef P2P_PEER_EXPIRATION_AGE
+#define P2P_PEER_EXPIRATION_AGE 60
+#endif /* P2P_PEER_EXPIRATION_AGE */
+
+
+void p2p_expire_peers(struct p2p_data *p2p)
+{
+ struct p2p_device *dev, *n;
+ struct os_reltime now;
+ size_t i;
+
+ os_get_reltime(&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;
+
+ if (dev == p2p->go_neg_peer) {
+ /*
+ * GO Negotiation is in progress with the peer, so
+ * don't expire the peer entry until GO Negotiation
+ * fails or times out.
+ */
+ continue;
+ }
+
+ if (p2p->cfg->go_connected &&
+ p2p->cfg->go_connected(p2p->cfg->cb_ctx,
+ dev->info.p2p_device_addr)) {
+ /*
+ * We are connected as a client to a group in which the
+ * peer is the GO, so do not expire the peer entry.
+ */
+ os_get_reltime(&dev->last_seen);
+ continue;
+ }
+
+ for (i = 0; i < p2p->num_groups; i++) {
+ if (p2p_group_is_client_connected(
+ p2p->groups[i], dev->info.p2p_device_addr))
+ break;
+ }
+ if (i < p2p->num_groups) {
+ /*
+ * The peer is connected as a client in a group where
+ * we are the GO, so do not expire the peer entry.
+ */
+ os_get_reltime(&dev->last_seen);
+ continue;
+ }
+
+ p2p_dbg(p2p, "Expiring old peer entry " MACSTR,
+ MAC2STR(dev->info.p2p_device_addr));
+ dl_list_del(&dev->list);
+ p2p_device_free(p2p, dev);
+ }
+}
+
+
+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 "?";
+ }
+}
+
+
+const char * p2p_get_state_txt(struct p2p_data *p2p)
+{
+ return p2p_state_txt(p2p->state);
+}
+
+
+struct p2ps_advertisement * p2p_get_p2ps_adv_list(struct p2p_data *p2p)
+{
+ return p2p ? p2p->p2ps_adv_list : NULL;
+}
+
+
+void p2p_set_intended_addr(struct p2p_data *p2p, const u8 *intended_addr)
+{
+ if (p2p && intended_addr)
+ os_memcpy(p2p->intended_addr, intended_addr, ETH_ALEN);
+}
+
+
+u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr)
+{
+ struct p2p_device *dev = NULL;
+
+ if (!addr || !p2p)
+ return 0;
+
+ dev = p2p_get_device(p2p, addr);
+ if (dev)
+ return dev->wps_prov_info;
+ else
+ return 0;
+}
+
+
+void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr)
+{
+ struct p2p_device *dev = NULL;
+
+ if (!addr || !p2p)
+ return;
+
+ dev = p2p_get_device(p2p, addr);
+ if (dev)
+ dev->wps_prov_info = 0;
+}
+
+
+void p2p_set_state(struct p2p_data *p2p, int new_state)
+{
+ p2p_dbg(p2p, "State %s -> %s",
+ p2p_state_txt(p2p->state), p2p_state_txt(new_state));
+ p2p->state = new_state;
+
+ if (new_state == P2P_IDLE && p2p->pending_channel) {
+ p2p_dbg(p2p, "Apply change in listen channel");
+ p2p->cfg->reg_class = p2p->pending_reg_class;
+ p2p->cfg->channel = p2p->pending_channel;
+ p2p->pending_reg_class = 0;
+ p2p->pending_channel = 0;
+ }
+}
+
+
+void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, unsigned int usec)
+{
+ p2p_dbg(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)
+{
+ p2p_dbg(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, int status)
+{
+ struct p2p_go_neg_results res;
+ struct p2p_device *peer = p2p->go_neg_peer;
+
+ if (!peer)
+ return;
+
+ eloop_cancel_timeout(p2p_go_neg_wait_timeout, p2p, NULL);
+ if (p2p->state != P2P_SEARCH) {
+ /*
+ * Clear timeouts related to GO Negotiation if no new p2p_find
+ * has been started.
+ */
+ p2p_clear_timeout(p2p);
+ p2p_set_state(p2p, P2P_IDLE);
+ }
+
+ peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
+ peer->wps_method = WPS_NOT_READY;
+ peer->oob_pw_id = 0;
+ wpabuf_free(peer->go_neg_conf);
+ peer->go_neg_conf = NULL;
+ p2p->go_neg_peer = NULL;
+
+ os_memset(&res, 0, sizeof(res));
+ res.status = status;
+ 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, int dev_disc)
+{
+ unsigned int r, tu;
+ int freq;
+ struct wpabuf *ies;
+
+ p2p_dbg(p2p, "Starting short listen state (state=%s)",
+ p2p_state_txt(p2p->state));
+
+ if (p2p->pending_listen_freq) {
+ /* We have a pending p2p_listen request */
+ p2p_dbg(p2p, "p2p_listen command pending already");
+ return;
+ }
+
+ freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel);
+ if (freq < 0) {
+ p2p_dbg(p2p, "Unknown regulatory class/channel");
+ return;
+ }
+
+ if (os_get_random((u8 *) &r, sizeof(r)) < 0)
+ r = 0;
+ tu = (r % ((p2p->max_disc_int - p2p->min_disc_int) + 1) +
+ p2p->min_disc_int) * 100;
+ if (p2p->max_disc_tu >= 0 && tu > (unsigned int) p2p->max_disc_tu)
+ tu = p2p->max_disc_tu;
+ if (!dev_disc && tu < 100)
+ tu = 100; /* Need to wait in non-device discovery use cases */
+ if (p2p->cfg->max_listen && 1024 * tu / 1000 > p2p->cfg->max_listen)
+ tu = p2p->cfg->max_listen * 1000 / 1024;
+
+ if (tu == 0) {
+ p2p_dbg(p2p, "Skip listen state since duration was 0 TU");
+ p2p_set_timeout(p2p, 0, 0);
+ return;
+ }
+
+ ies = p2p_build_probe_resp_ies(p2p, NULL, 0);
+ if (ies == NULL)
+ return;
+
+ p2p->pending_listen_freq = freq;
+ p2p->pending_listen_sec = 0;
+ p2p->pending_listen_usec = 1024 * tu;
+
+ if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, 1024 * tu / 1000,
+ ies) < 0) {
+ p2p_dbg(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;
+
+ p2p_dbg(p2p, "Going to listen(only) state");
+
+ if (p2p->pending_listen_freq) {
+ /* We have a pending p2p_listen request */
+ p2p_dbg(p2p, "p2p_listen command pending already");
+ return -1;
+ }
+
+ freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel);
+ if (freq < 0) {
+ p2p_dbg(p2p, "Unknown regulatory class/channel");
+ return -1;
+ }
+
+ p2p->pending_listen_sec = timeout / 1000;
+ p2p->pending_listen_usec = (timeout % 1000) * 1000;
+
+ if (p2p->p2p_scan_running) {
+ if (p2p->start_after_scan == P2P_AFTER_SCAN_CONNECT) {
+ p2p_dbg(p2p, "p2p_scan running - connect is already pending - skip listen");
+ return 0;
+ }
+ p2p_dbg(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, NULL, 0);
+ if (ies == NULL)
+ return -1;
+
+ p2p->pending_listen_freq = freq;
+
+ if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, timeout, ies) < 0) {
+ p2p_dbg(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;
+ dev->sd_reqs = 0;
+ }
+}
+
+
+/**
+ * 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_reltime_before(&dev->last_seen, &oldest->last_seen))
+ oldest = dev;
+ }
+ if (count + 1 > p2p->cfg->max_peers && oldest) {
+ p2p_dbg(p2p,
+ "Remove oldest peer entry to make room for a new peer "
+ MACSTR, MAC2STR(oldest->info.p2p_device_addr));
+ 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);
+ dev->support_6ghz = false;
+
+ return dev;
+}
+
+
+static void p2p_copy_client_info(struct p2p_device *dev,
+ struct p2p_client_info *cli)
+{
+ p2p_copy_filter_devname(dev->info.device_name,
+ sizeof(dev->info.device_name),
+ cli->dev_name, cli->dev_name_len);
+ 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;
+ if (dev->info.wps_sec_dev_type_list_len > WPS_SEC_DEV_TYPE_MAX_LEN)
+ dev->info.wps_sec_dev_type_list_len = WPS_SEC_DEV_TYPE_MAX_LEN;
+ 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 os_reltime *rx_time)
+{
+ 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_memcmp(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];
+ if (os_memcmp(cli->p2p_device_addr, p2p->cfg->dev_addr,
+ ETH_ALEN) == 0)
+ continue; /* ignore our own entry */
+ dev = p2p_get_device(p2p, cli->p2p_device_addr);
+ if (dev) {
+ if (dev->flags & (P2P_DEV_GROUP_CLIENT_ONLY |
+ P2P_DEV_PROBE_REQ_ONLY)) {
+ /*
+ * Update information since we have not
+ * received this directly from the client.
+ */
+ p2p_copy_client_info(dev, cli);
+ } else {
+ /*
+ * Need to update P2P Client Discoverability
+ * flag since it is valid only in P2P Group
+ * Info attribute.
+ */
+ dev->info.dev_capab &=
+ ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
+ dev->info.dev_capab |=
+ cli->dev_capab &
+ P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
+ }
+ 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_memcpy(&dev->last_seen, rx_time, sizeof(struct os_reltime));
+ os_memcpy(dev->member_in_go_dev, go_dev_addr, ETH_ALEN);
+ os_memcpy(dev->member_in_go_iface, go_interface_addr,
+ ETH_ALEN);
+ dev->flags |= P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT;
+ }
+
+ return 0;
+}
+
+
+static void p2p_copy_wps_info(struct p2p_data *p2p, 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) {
+ /*
+ * P2P Client Discoverability bit is reserved in all frames
+ * that use this function, so do not change its value here.
+ */
+ dev->info.dev_capab &= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
+ dev->info.dev_capab |= msg->capability[0] &
+ ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
+ dev->info.group_capab = msg->capability[1];
+ }
+
+ p2p_update_peer_6ghz_capab(dev, msg);
+
+ 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) {
+ u16 new_config_methods;
+ new_config_methods = msg->config_methods ?
+ msg->config_methods : msg->wps_config_methods;
+ if (new_config_methods &&
+ dev->info.config_methods != new_config_methods) {
+ p2p_dbg(p2p, "Update peer " MACSTR
+ " config_methods 0x%x -> 0x%x",
+ MAC2STR(dev->info.p2p_device_addr),
+ dev->info.config_methods,
+ new_config_methods);
+ dev->info.config_methods = new_config_methods;
+ }
+ }
+}
+
+
+void p2p_update_peer_6ghz_capab(struct p2p_device *dev,
+ const struct p2p_message *msg)
+{
+ if (msg->capability &&
+ (msg->capability[0] & P2P_DEV_CAPAB_6GHZ_BAND_CAPABLE))
+ dev->support_6ghz = true;
+}
+
+
+static void p2p_update_peer_vendor_elems(struct p2p_device *dev, const u8 *ies,
+ size_t ies_len)
+{
+ const u8 *pos, *end;
+ u8 id, len;
+
+ wpabuf_free(dev->info.vendor_elems);
+ dev->info.vendor_elems = NULL;
+
+ end = ies + ies_len;
+
+ for (pos = ies; end - pos > 1; pos += len) {
+ id = *pos++;
+ len = *pos++;
+
+ if (len > end - pos)
+ break;
+
+ if (id != WLAN_EID_VENDOR_SPECIFIC || len < 3)
+ continue;
+
+ if (len >= 4) {
+ u32 type = WPA_GET_BE32(pos);
+
+ if (type == WPA_IE_VENDOR_TYPE ||
+ type == WMM_IE_VENDOR_TYPE ||
+ type == WPS_IE_VENDOR_TYPE ||
+ type == P2P_IE_VENDOR_TYPE ||
+ type == WFD_IE_VENDOR_TYPE)
+ continue;
+ }
+
+ /* Unknown vendor element - make raw IE data available */
+ if (wpabuf_resize(&dev->info.vendor_elems, 2 + len) < 0)
+ break;
+ wpabuf_put_data(dev->info.vendor_elems, pos - 2, 2 + len);
+ if (wpabuf_size(dev->info.vendor_elems) > 2000)
+ break;
+ }
+}
+
+
+static int p2p_compare_wfd_info(struct p2p_device *dev,
+ const struct p2p_message *msg)
+{
+ if (dev->info.wfd_subelems && msg->wfd_subelems) {
+ if (dev->info.wfd_subelems->used != msg->wfd_subelems->used)
+ return 1;
+
+ return os_memcmp(dev->info.wfd_subelems->buf,
+ msg->wfd_subelems->buf,
+ dev->info.wfd_subelems->used);
+ }
+ if (dev->info.wfd_subelems || msg->wfd_subelems)
+ return 1;
+
+ return 0;
+}
+
+
+/**
+ * p2p_add_device - Add peer entries based on scan results or P2P frames
+ * @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
+ * @rx_time: Time when the result was received
+ * @ies: IEs from the Beacon or Probe Response frame
+ * @ies_len: Length of ies buffer in octets
+ * @scan_res: Whether this was based on scan results
+ * 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,
+ struct os_reltime *rx_time, int level, const u8 *ies,
+ size_t ies_len, int scan_res)
+{
+ struct p2p_device *dev;
+ struct p2p_message msg;
+ const u8 *p2p_dev_addr;
+ int wfd_changed;
+ int dev_name_changed;
+ int i;
+ struct os_reltime time_now;
+
+ os_memset(&msg, 0, sizeof(msg));
+ if (p2p_parse_ies(ies, ies_len, &msg)) {
+ p2p_dbg(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 {
+ p2p_dbg(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) {
+ p2p_dbg(p2p, "Do not add peer filter for " MACSTR
+ " due to peer filter", MAC2STR(p2p_dev_addr));
+ p2p_parse_free(&msg);
+ return 0;
+ }
+
+ dev = p2p_create_device(p2p, p2p_dev_addr);
+ if (dev == NULL) {
+ p2p_parse_free(&msg);
+ return -1;
+ }
+
+ if (rx_time == NULL) {
+ os_get_reltime(&time_now);
+ rx_time = &time_now;
+ }
+
+ /*
+ * Update the device entry only if the new peer
+ * entry is newer than the one previously stored, or if
+ * the device was previously seen as a P2P Client in a group
+ * and the new entry isn't older than a threshold.
+ */
+ if (dev->last_seen.sec > 0 &&
+ os_reltime_before(rx_time, &dev->last_seen) &&
+ (!(dev->flags & P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT) ||
+ os_reltime_expired(&dev->last_seen, rx_time,
+ P2P_DEV_GROUP_CLIENT_RESP_THRESHOLD))) {
+ p2p_dbg(p2p,
+ "Do not update peer entry based on old frame (rx_time=%u.%06u last_seen=%u.%06u flags=0x%x)",
+ (unsigned int) rx_time->sec,
+ (unsigned int) rx_time->usec,
+ (unsigned int) dev->last_seen.sec,
+ (unsigned int) dev->last_seen.usec,
+ dev->flags);
+ p2p_parse_free(&msg);
+ return -1;
+ }
+
+ os_memcpy(&dev->last_seen, rx_time, sizeof(struct os_reltime));
+
+ dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY |
+ P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT);
+
+ if (os_memcmp(addr, p2p_dev_addr, ETH_ALEN) != 0)
+ os_memcpy(dev->interface_addr, addr, ETH_ALEN);
+ if (msg.ssid &&
+ msg.ssid[1] <= sizeof(dev->oper_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];
+ }
+
+ wpabuf_free(dev->info.p2ps_instance);
+ dev->info.p2ps_instance = NULL;
+ if (msg.adv_service_instance && msg.adv_service_instance_len)
+ dev->info.p2ps_instance = wpabuf_alloc_copy(
+ msg.adv_service_instance, msg.adv_service_instance_len);
+
+ 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) {
+ p2p_dbg(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 && scan_res) {
+ p2p_dbg(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);
+ }
+ if (scan_res) {
+ dev->listen_freq = freq;
+ if (msg.group_info)
+ dev->oper_freq = freq;
+ }
+ dev->info.level = level;
+
+ dev_name_changed = os_strncmp(dev->info.device_name, msg.device_name,
+ WPS_DEV_NAME_MAX_LEN) != 0;
+
+ p2p_copy_wps_info(p2p, 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;
+ }
+
+ wfd_changed = p2p_compare_wfd_info(dev, &msg);
+
+ if (wfd_changed) {
+ wpabuf_free(dev->info.wfd_subelems);
+ if (msg.wfd_subelems)
+ dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
+ else
+ dev->info.wfd_subelems = NULL;
+ }
+
+ if (scan_res) {
+ p2p_add_group_clients(p2p, p2p_dev_addr, addr, freq,
+ msg.group_info, msg.group_info_len,
+ rx_time);
+ }
+
+ p2p_parse_free(&msg);
+
+ p2p_update_peer_vendor_elems(dev, ies, ies_len);
+
+ if (dev->flags & P2P_DEV_REPORTED && !wfd_changed &&
+ !dev_name_changed &&
+ (!msg.adv_service_instance ||
+ (dev->flags & P2P_DEV_P2PS_REPORTED)))
+ return 0;
+
+ p2p_dbg(p2p, "Peer found with Listen frequency %d MHz (rx_time=%u.%06u)",
+ freq, (unsigned int) rx_time->sec,
+ (unsigned int) rx_time->usec);
+ if (dev->flags & P2P_DEV_USER_REJECTED) {
+ p2p_dbg(p2p, "Do not report rejected device");
+ return 0;
+ }
+
+ if (dev->info.config_methods == 0 &&
+ (freq == 2412 || freq == 2437 || freq == 2462)) {
+ /*
+ * If we have only seen a Beacon frame from a GO, we do not yet
+ * know what WPS config methods it supports. Since some
+ * applications use config_methods value from P2P-DEVICE-FOUND
+ * events, postpone reporting this peer until we've fully
+ * discovered its capabilities.
+ *
+ * At least for now, do this only if the peer was detected on
+ * one of the social channels since that peer can be easily be
+ * found again and there are no limitations of having to use
+ * passive scan on this channels, so this can be done through
+ * Probe Response frame that includes the config_methods
+ * information.
+ */
+ p2p_dbg(p2p, "Do not report peer " MACSTR
+ " with unknown config methods", MAC2STR(addr));
+ 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;
+
+ if (msg.adv_service_instance)
+ dev->flags |= P2P_DEV_P2PS_REPORTED;
+
+ return 0;
+}
+
+
+static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev)
+{
+ int i;
+
+ if (p2p->go_neg_peer == dev) {
+ /*
+ * If GO Negotiation is in progress, report that it has failed.
+ */
+ p2p_go_neg_failed(p2p, -1);
+ }
+ 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;
+
+ /* dev_lost() device, but only if it was previously dev_found() */
+ if (dev->flags & P2P_DEV_REPORTED_ONCE)
+ 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;
+ }
+
+ wpabuf_free(dev->info.wfd_subelems);
+ wpabuf_free(dev->info.vendor_elems);
+ wpabuf_free(dev->go_neg_conf);
+ wpabuf_free(dev->info.p2ps_instance);
+
+ 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(reg_class, channel);
+ p2p_dbg(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;
+ u16 pw_id = DEV_PW_DEFAULT;
+ int res;
+
+ if (p2p->drv_in_listen) {
+ p2p_dbg(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->find_pending_full &&
+ (p2p->find_type == P2P_FIND_PROGRESSIVE ||
+ p2p->find_type == P2P_FIND_START_WITH_FULL)) {
+ type = P2P_SCAN_FULL;
+ p2p_dbg(p2p, "Starting search (pending full scan)");
+ p2p->find_pending_full = 0;
+ } else if ((p2p->find_type == P2P_FIND_PROGRESSIVE &&
+ (freq = p2p_get_next_prog_freq(p2p)) > 0) ||
+ (p2p->find_type == P2P_FIND_START_WITH_FULL &&
+ (freq = p2p->find_specified_freq) > 0)) {
+ type = P2P_SCAN_SOCIAL_PLUS_ONE;
+ p2p_dbg(p2p, "Starting search (+ freq %u)", freq);
+ } else {
+ type = P2P_SCAN_SOCIAL;
+ p2p_dbg(p2p, "Starting search");
+ }
+
+ res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, type, freq,
+ p2p->num_req_dev_types, p2p->req_dev_types,
+ p2p->find_dev_id, pw_id, p2p->include_6ghz);
+ if (res < 0) {
+ p2p_dbg(p2p, "Scan request schedule failed");
+ p2p_continue_find(p2p);
+ }
+}
+
+
+static void p2p_find_timeout(void *eloop_ctx, void *timeout_ctx)
+{
+ struct p2p_data *p2p = eloop_ctx;
+ p2p_dbg(p2p, "Find timeout -> stop");
+ p2p_stop_find(p2p);
+}
+
+
+void p2p_notify_scan_trigger_status(struct p2p_data *p2p, int status)
+{
+ if (status != 0) {
+ p2p_dbg(p2p, "Scan request failed");
+ /* Do continue find even for the first p2p_find_scan */
+ p2p_continue_find(p2p);
+ } else {
+ p2p_dbg(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 int p2p_run_after_scan(struct p2p_data *p2p)
+{
+ struct p2p_device *dev;
+ enum p2p_after_scan op;
+
+ 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:
+ p2p_dbg(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:
+ p2p_dbg(p2p, "Start previously requested connect with " MACSTR,
+ MAC2STR(p2p->after_scan_peer));
+ dev = p2p_get_device(p2p, p2p->after_scan_peer);
+ if (dev == NULL) {
+ p2p_dbg(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;
+ p2p_dbg(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;
+}
+
+
+static int p2ps_gen_hash(struct p2p_data *p2p, const char *str, u8 *hash)
+{
+ u8 buf[SHA256_MAC_LEN];
+ char str_buf[256];
+ const u8 *adv_array;
+ size_t i, adv_len;
+
+ if (!str || !hash)
+ return 0;
+
+ if (!str[0]) {
+ os_memcpy(hash, p2p->wild_card_hash, P2PS_HASH_LEN);
+ return 1;
+ }
+
+ adv_array = (u8 *) str_buf;
+ adv_len = os_strlen(str);
+ if (adv_len >= sizeof(str_buf))
+ return 0;
+
+ for (i = 0; i < adv_len; i++) {
+ if (str[i] >= 'A' && str[i] <= 'Z')
+ str_buf[i] = str[i] - 'A' + 'a';
+ else
+ str_buf[i] = str[i];
+ }
+
+ if (sha256_vector(1, &adv_array, &adv_len, buf))
+ return 0;
+
+ os_memcpy(hash, buf, P2PS_HASH_LEN);
+ return 1;
+}
+
+
+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,
+ const u8 *dev_id, unsigned int search_delay,
+ u8 seek_count, const char **seek, int freq, bool include_6ghz)
+{
+ int res;
+ struct os_reltime start;
+
+ p2p_dbg(p2p, "Starting find (type=%d)", type);
+ if (p2p->p2p_scan_running) {
+ p2p_dbg(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_memdup(req_dev_types,
+ num_req_dev_types *
+ WPS_DEV_TYPE_LEN);
+ if (p2p->req_dev_types == NULL)
+ return -1;
+ p2p->num_req_dev_types = num_req_dev_types;
+ }
+
+ if (dev_id) {
+ os_memcpy(p2p->find_dev_id_buf, dev_id, ETH_ALEN);
+ p2p->find_dev_id = p2p->find_dev_id_buf;
+ } else
+ p2p->find_dev_id = NULL;
+ p2p->include_6ghz = p2p_wfd_enabled(p2p) && include_6ghz;
+ if (seek_count == 0 || !seek) {
+ /* Not an ASP search */
+ p2p->p2ps_seek = 0;
+ } else if (seek_count == 1 && seek && (!seek[0] || !seek[0][0])) {
+ /*
+ * An empty seek string means no hash values, but still an ASP
+ * search.
+ */
+ p2p_dbg(p2p, "ASP search");
+ p2p->p2ps_seek_count = 0;
+ p2p->p2ps_seek = 1;
+ } else if (seek && seek_count <= P2P_MAX_QUERY_HASH) {
+ u8 buf[P2PS_HASH_LEN];
+ int i, count = 0;
+
+ for (i = 0; i < seek_count; i++) {
+ if (!p2ps_gen_hash(p2p, seek[i], buf))
+ continue;
+
+ p2p_dbg(p2p, "Seek service %s hash " MACSTR,
+ seek[i], MAC2STR(buf));
+ os_memcpy(&p2p->p2ps_seek_hash[count * P2PS_HASH_LEN],
+ buf, P2PS_HASH_LEN);
+ count++;
+ }
+
+ p2p->p2ps_seek_count = count;
+ p2p->p2ps_seek = 1;
+ } else {
+ p2p->p2ps_seek_count = 0;
+ p2p->p2ps_seek = 1;
+ }
+
+ /* Special case to perform wildcard search */
+ if (p2p->p2ps_seek_count == 0 && p2p->p2ps_seek) {
+ p2p->p2ps_seek_count = 1;
+ os_memcpy(&p2p->p2ps_seek_hash, p2p->wild_card_hash,
+ P2PS_HASH_LEN);
+ }
+
+ p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
+ p2p_clear_timeout(p2p);
+ if (p2p->pending_listen_freq) {
+ p2p_dbg(p2p, "Clear pending_listen_freq for p2p_find");
+ p2p->pending_listen_freq = 0;
+ }
+ p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
+ p2p->find_pending_full = 0;
+ p2p->find_type = type;
+ if (freq != 2412 && freq != 2437 && freq != 2462 && freq != 60480)
+ p2p->find_specified_freq = freq;
+ else
+ p2p->find_specified_freq = 0;
+ p2p_device_clear_reported(p2p);
+ os_memset(p2p->sd_query_no_ack, 0, ETH_ALEN);
+ p2p_set_state(p2p, P2P_SEARCH);
+ p2p->search_delay = search_delay;
+ p2p->in_search_delay = 0;
+ eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
+ p2p->last_p2p_find_timeout = timeout;
+ if (timeout)
+ eloop_register_timeout(timeout, 0, p2p_find_timeout,
+ p2p, NULL);
+ os_get_reltime(&start);
+ switch (type) {
+ case P2P_FIND_START_WITH_FULL:
+ if (freq > 0) {
+ /*
+ * Start with the specified channel and then move to
+ * scans for social channels and this specific channel.
+ */
+ res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx,
+ P2P_SCAN_SPECIFIC, freq,
+ p2p->num_req_dev_types,
+ p2p->req_dev_types, dev_id,
+ DEV_PW_DEFAULT,
+ p2p->include_6ghz);
+ break;
+ }
+ /* fall through */
+ 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, dev_id,
+ DEV_PW_DEFAULT, p2p->include_6ghz);
+ 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, dev_id,
+ DEV_PW_DEFAULT, p2p->include_6ghz);
+ break;
+ default:
+ return -1;
+ }
+
+ if (!res)
+ p2p->find_start = start;
+
+ if (res != 0 && p2p->p2p_scan_running) {
+ p2p_dbg(p2p, "Failed to start p2p_scan - another p2p_scan was already running");
+ /* wait for the previous p2p_scan to complete */
+ if (type == P2P_FIND_PROGRESSIVE ||
+ (type == P2P_FIND_START_WITH_FULL && freq == 0))
+ p2p->find_pending_full = 1;
+ res = 0; /* do not report failure */
+ } else if (res != 0) {
+ p2p_dbg(p2p, "Failed to start p2p_scan");
+ p2p_set_state(p2p, P2P_IDLE);
+ eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
+ }
+
+ return res;
+}
+
+
+void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq)
+{
+ p2p_dbg(p2p, "Stopping find");
+ eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
+ p2p_clear_timeout(p2p);
+ if (p2p->state == P2P_SEARCH || p2p->state == P2P_SD_DURING_FIND)
+ p2p->cfg->find_stopped(p2p->cfg->cb_ctx);
+
+ p2p->p2ps_seek_count = 0;
+
+ p2p_set_state(p2p, P2P_IDLE);
+ p2p_free_req_dev_types(p2p);
+ p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
+ if (p2p->go_neg_peer)
+ p2p->go_neg_peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
+ p2p->go_neg_peer = NULL;
+ p2p->sd_peer = NULL;
+ p2p->invite_peer = NULL;
+ p2p_stop_listen_for_freq(p2p, freq);
+ p2p->send_action_in_progress = 0;
+}
+
+
+void p2p_stop_listen_for_freq(struct p2p_data *p2p, int freq)
+{
+ if (freq > 0 &&
+ ((p2p->drv_in_listen == freq && p2p->in_listen) ||
+ p2p->pending_listen_freq == (unsigned int) freq)) {
+ p2p_dbg(p2p, "Skip stop_listen since we are on correct channel for response");
+ return;
+ }
+ if (p2p->in_listen) {
+ p2p->in_listen = 0;
+ p2p_clear_timeout(p2p);
+ }
+ if (p2p->drv_in_listen) {
+ /*
+ * The driver may not deliver callback to p2p_listen_end()
+ * when the operation gets canceled, so clear the internal
+ * variable that is tracking driver state.
+ */
+ p2p_dbg(p2p, "Clear drv_in_listen (%d)", p2p->drv_in_listen);
+ p2p->drv_in_listen = 0;
+ }
+ p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
+}
+
+
+void p2p_stop_listen(struct p2p_data *p2p)
+{
+ if (p2p->state != P2P_LISTEN_ONLY) {
+ p2p_dbg(p2p, "Skip stop_listen since not in listen_only state.");
+ return;
+ }
+
+ p2p_stop_listen_for_freq(p2p, 0);
+ p2p_set_state(p2p, P2P_IDLE);
+}
+
+
+void p2p_stop_find(struct p2p_data *p2p)
+{
+ p2p->pending_listen_freq = 0;
+ p2p_stop_find_for_freq(p2p, 0);
+}
+
+
+static int p2p_prepare_channel_pref(struct p2p_data *p2p,
+ unsigned int force_freq,
+ unsigned int pref_freq, int go)
+{
+ u8 op_class, op_channel;
+ unsigned int freq = force_freq ? force_freq : pref_freq;
+
+ p2p_dbg(p2p, "Prepare channel pref - force_freq=%u pref_freq=%u go=%d",
+ force_freq, pref_freq, go);
+ if (p2p_freq_to_channel(freq, &op_class, &op_channel) < 0) {
+ p2p_dbg(p2p, "Unsupported frequency %u MHz", freq);
+ return -1;
+ }
+
+ if (!p2p_channels_includes(&p2p->cfg->channels, op_class, op_channel) &&
+ (go || !p2p_channels_includes(&p2p->cfg->cli_channels, op_class,
+ op_channel))) {
+ p2p_dbg(p2p, "Frequency %u MHz (oper_class %u channel %u) not allowed for P2P",
+ freq, op_class, op_channel);
+ return -1;
+ }
+
+ p2p->op_reg_class = op_class;
+ p2p->op_channel = op_channel;
+
+ if (force_freq) {
+ 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 {
+ p2p_copy_channels(&p2p->channels, &p2p->cfg->channels,
+ p2p->allow_6ghz);
+ }
+
+ return 0;
+}
+
+
+static void p2p_prepare_channel_best(struct p2p_data *p2p)
+{
+ u8 op_class, op_channel;
+ const int op_classes_5ghz[] = { 124, 125, 115, 0 };
+ const int op_classes_ht40[] = { 126, 127, 116, 117, 0 };
+ const int op_classes_vht[] = { 128, 0 };
+ const int op_classes_edmg[] = { 181, 182, 183, 0 };
+ const int op_classes_6ghz[] = { 131, 0 };
+
+ p2p_dbg(p2p, "Prepare channel best");
+
+ if (!p2p->cfg->cfg_op_channel && p2p->best_freq_overall > 0 &&
+ p2p_supported_freq(p2p, p2p->best_freq_overall) &&
+ p2p_freq_to_channel(p2p->best_freq_overall, &op_class, &op_channel)
+ == 0) {
+ p2p_dbg(p2p, "Select best overall channel as operating channel preference");
+ p2p->op_reg_class = op_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->best_freq_5, &op_class, &op_channel)
+ == 0) {
+ p2p_dbg(p2p, "Select best 5 GHz channel as operating channel preference");
+ p2p->op_reg_class = op_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->best_freq_24, &op_class,
+ &op_channel) == 0) {
+ p2p_dbg(p2p, "Select best 2.4 GHz channel as operating channel preference");
+ p2p->op_reg_class = op_class;
+ p2p->op_channel = op_channel;
+ } else if (p2p->cfg->num_pref_chan > 0 &&
+ p2p_channels_includes(&p2p->cfg->channels,
+ p2p->cfg->pref_chan[0].op_class,
+ p2p->cfg->pref_chan[0].chan)) {
+ p2p_dbg(p2p, "Select first pref_chan entry as operating channel preference");
+ p2p->op_reg_class = p2p->cfg->pref_chan[0].op_class;
+ p2p->op_channel = p2p->cfg->pref_chan[0].chan;
+ } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_edmg,
+ &p2p->op_reg_class, &p2p->op_channel) ==
+ 0) {
+ p2p_dbg(p2p, "Select possible EDMG channel (op_class %u channel %u) as operating channel preference",
+ p2p->op_reg_class, p2p->op_channel);
+ } else if (p2p->allow_6ghz &&
+ (p2p_channel_select(&p2p->cfg->channels, op_classes_6ghz,
+ &p2p->op_reg_class, &p2p->op_channel) ==
+ 0)) {
+ p2p_dbg(p2p, "Select possible 6 GHz channel (op_class %u channel %u) as operating channel preference",
+ p2p->op_reg_class, p2p->op_channel);
+ } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_vht,
+ &p2p->op_reg_class, &p2p->op_channel) ==
+ 0) {
+ p2p_dbg(p2p, "Select possible VHT channel (op_class %u channel %u) as operating channel preference",
+ p2p->op_reg_class, p2p->op_channel);
+ } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_ht40,
+ &p2p->op_reg_class, &p2p->op_channel) ==
+ 0) {
+ p2p_dbg(p2p, "Select possible HT40 channel (op_class %u channel %u) as operating channel preference",
+ p2p->op_reg_class, p2p->op_channel);
+ } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_5ghz,
+ &p2p->op_reg_class, &p2p->op_channel) ==
+ 0) {
+ p2p_dbg(p2p, "Select possible 5 GHz channel (op_class %u channel %u) as operating channel preference",
+ p2p->op_reg_class, p2p->op_channel);
+ } else if (p2p_channels_includes(&p2p->cfg->channels,
+ p2p->cfg->op_reg_class,
+ p2p->cfg->op_channel)) {
+ p2p_dbg(p2p, "Select pre-configured channel as operating channel preference");
+ p2p->op_reg_class = p2p->cfg->op_reg_class;
+ p2p->op_channel = p2p->cfg->op_channel;
+ } else if (p2p_channel_random_social(&p2p->cfg->channels,
+ &p2p->op_reg_class,
+ &p2p->op_channel,
+ NULL, NULL) == 0) {
+ p2p_dbg(p2p, "Select random available social channel (op_class %u channel %u) as operating channel preference",
+ p2p->op_reg_class, p2p->op_channel);
+ } else {
+ /* Select any random available channel from the first available
+ * operating class */
+ p2p_channel_select(&p2p->cfg->channels, NULL,
+ &p2p->op_reg_class,
+ &p2p->op_channel);
+ p2p_dbg(p2p, "Select random available channel %d from operating class %d as operating channel preference",
+ p2p->op_channel, p2p->op_reg_class);
+ }
+
+ p2p_copy_channels(&p2p->channels, &p2p->cfg->channels, p2p->allow_6ghz);
+}
+
+
+/**
+ * p2p_prepare_channel - Select operating channel for GO Negotiation or P2PS PD
+ * @p2p: P2P module context from p2p_init()
+ * @dev: Selected peer device
+ * @force_freq: Forced frequency in MHz or 0 if not forced
+ * @pref_freq: Preferred frequency in MHz or 0 if no preference
+ * @go: Whether the local end will be forced to be GO
+ * Returns: 0 on success, -1 on failure (channel not supported for P2P)
+ *
+ * This function is used to do initial operating channel selection for GO
+ * Negotiation prior to having received peer information or for P2PS PD
+ * signalling. The selected channel may be further optimized in
+ * p2p_reselect_channel() once the peer information is available.
+ */
+int p2p_prepare_channel(struct p2p_data *p2p, struct p2p_device *dev,
+ unsigned int force_freq, unsigned int pref_freq, int go)
+{
+ p2p_dbg(p2p, "Prepare channel - force_freq=%u pref_freq=%u go=%d",
+ force_freq, pref_freq, go);
+ if (force_freq || pref_freq) {
+ if (p2p_prepare_channel_pref(p2p, force_freq, pref_freq, go) <
+ 0)
+ return -1;
+ } else {
+ p2p_prepare_channel_best(p2p);
+ }
+ p2p_channels_dump(p2p, "prepared channels", &p2p->channels);
+ if (go)
+ p2p_channels_remove_freqs(&p2p->channels, &p2p->no_go_freq);
+ else if (!force_freq)
+ p2p_channels_union_inplace(&p2p->channels,
+ &p2p->cfg->cli_channels);
+ p2p_channels_dump(p2p, "after go/cli filter/add", &p2p->channels);
+
+ p2p_dbg(p2p, "Own preference for operation channel: Operating Class %u Channel %u%s",
+ p2p->op_reg_class, p2p->op_channel,
+ force_freq ? " (forced)" : "");
+
+ if (force_freq)
+ dev->flags |= P2P_DEV_FORCE_FREQ;
+ else
+ dev->flags &= ~P2P_DEV_FORCE_FREQ;
+
+ return 0;
+}
+
+
+static void p2p_set_dev_persistent(struct p2p_device *dev,
+ int persistent_group)
+{
+ switch (persistent_group) {
+ case 0:
+ dev->flags &= ~(P2P_DEV_PREFER_PERSISTENT_GROUP |
+ P2P_DEV_PREFER_PERSISTENT_RECONN);
+ break;
+ case 1:
+ dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
+ dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_RECONN;
+ break;
+ case 2:
+ dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP |
+ P2P_DEV_PREFER_PERSISTENT_RECONN;
+ break;
+ }
+}
+
+
+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,
+ const u8 *force_ssid, size_t force_ssid_len,
+ int pd_before_go_neg, unsigned int pref_freq, u16 oob_pw_id)
+{
+ struct p2p_device *dev;
+
+ p2p_dbg(p2p, "Request to start group negotiation - peer=" MACSTR
+ " GO Intent=%d Intended Interface Address=" MACSTR
+ " wps_method=%d persistent_group=%d pd_before_go_neg=%d "
+ "oob_pw_id=%u allow_6ghz=%d",
+ MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
+ wps_method, persistent_group, pd_before_go_neg, oob_pw_id,
+ p2p->allow_6ghz);
+
+ dev = p2p_get_device(p2p, peer_addr);
+ if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
+ p2p_dbg(p2p, "Cannot connect to unknown P2P Device " MACSTR,
+ MAC2STR(peer_addr));
+ return -1;
+ }
+
+ if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq,
+ go_intent == 15) < 0)
+ return -1;
+
+ if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
+ if (!(dev->info.dev_capab &
+ P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
+ p2p_dbg(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) {
+ p2p_dbg(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.
+ */
+ }
+
+ p2p->ssid_set = 0;
+ if (force_ssid) {
+ wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
+ force_ssid, force_ssid_len);
+ os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
+ p2p->ssid_len = force_ssid_len;
+ p2p->ssid_set = 1;
+ }
+
+ 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;
+ if (pd_before_go_neg)
+ dev->flags |= P2P_DEV_PD_BEFORE_GO_NEG;
+ else {
+ dev->flags &= ~P2P_DEV_PD_BEFORE_GO_NEG;
+ /*
+ * Assign dialog token and tie breaker here to use the same
+ * values in each retry within the same GO Negotiation exchange.
+ */
+ dev->dialog_token++;
+ if (dev->dialog_token == 0)
+ dev->dialog_token = 1;
+ dev->tie_breaker = p2p->next_tie_breaker;
+ p2p->next_tie_breaker = !p2p->next_tie_breaker;
+ }
+ dev->connect_reqs = 0;
+ dev->go_neg_req_sent = 0;
+ dev->go_state = UNKNOWN_GO;
+ p2p_set_dev_persistent(dev, 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);
+
+ dev->wps_method = wps_method;
+ dev->oob_pw_id = oob_pw_id;
+ dev->status = P2P_SC_SUCCESS;
+
+ if (p2p->p2p_scan_running) {
+ p2p_dbg(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;
+ }
+
+ 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,
+ const u8 *force_ssid, size_t force_ssid_len,
+ unsigned int pref_freq, u16 oob_pw_id)
+{
+ struct p2p_device *dev;
+
+ p2p_dbg(p2p, "Request to authorize group negotiation - peer=" MACSTR
+ " GO Intent=%d Intended Interface Address=" MACSTR
+ " wps_method=%d persistent_group=%d oob_pw_id=%u allow_6ghz=%d",
+ MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
+ wps_method, persistent_group, oob_pw_id, p2p->allow_6ghz);
+
+ dev = p2p_get_device(p2p, peer_addr);
+ if (dev == NULL) {
+ p2p_dbg(p2p, "Cannot authorize unknown P2P Device " MACSTR,
+ MAC2STR(peer_addr));
+ return -1;
+ }
+
+ if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq, go_intent ==
+ 15) < 0)
+ return -1;
+
+ p2p->ssid_set = 0;
+ if (force_ssid) {
+ wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
+ force_ssid, force_ssid_len);
+ os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
+ p2p->ssid_len = force_ssid_len;
+ p2p->ssid_set = 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;
+ p2p_set_dev_persistent(dev, persistent_group);
+ p2p->go_intent = go_intent;
+ os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
+
+ dev->wps_method = wps_method;
+ dev->oob_pw_id = oob_pw_id;
+ dev->status = P2P_SC_SUCCESS;
+
+ return 0;
+}
+
+
+void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
+ struct p2p_device *dev, struct p2p_message *msg)
+{
+ os_get_reltime(&dev->last_seen);
+
+ p2p_copy_wps_info(p2p, dev, 0, msg);
+
+ if (msg->listen_channel) {
+ int freq;
+ freq = p2p_channel_to_freq(msg->listen_channel[3],
+ msg->listen_channel[4]);
+ if (freq < 0) {
+ p2p_dbg(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 {
+ p2p_dbg(p2p, "Update peer " MACSTR
+ " Listen channel: %u -> %u MHz",
+ MAC2STR(dev->info.p2p_device_addr),
+ dev->listen_freq, freq);
+ dev->listen_freq = freq;
+ }
+ }
+
+ if (msg->wfd_subelems) {
+ wpabuf_free(dev->info.wfd_subelems);
+ dev->info.wfd_subelems = wpabuf_dup(msg->wfd_subelems);
+ }
+
+ if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
+ dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
+ p2p_dbg(p2p, "Completed device entry based on data from GO Negotiation Request");
+ } else {
+ p2p_dbg(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) {
+ p2p_dbg(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)
+{
+ if (p2p->ssid_set) {
+ os_memcpy(params->ssid, p2p->ssid, p2p->ssid_len);
+ params->ssid_len = p2p->ssid_len;
+ } else {
+ p2p_build_ssid(p2p, params->ssid, ¶ms->ssid_len);
+ }
+ p2p->ssid_set = 0;
+
+ p2p_random(params->passphrase, p2p->cfg->passphrase_len);
+ params->passphrase[p2p->cfg->passphrase_len] = '\0';
+ 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;
+
+ p2p_dbg(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) {
+ if (peer->flags & P2P_DEV_PREFER_PERSISTENT_RECONN)
+ res.persistent_group = 2;
+ else
+ res.persistent_group = 1;
+ }
+
+ if (go) {
+ /* Setup AP mode for WPS provisioning */
+ res.freq = p2p_channel_to_freq(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, p2p->cfg->passphrase_len);
+ res.passphrase[p2p->cfg->passphrase_len] = '\0';
+ } 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_dump(p2p, "own channels", &p2p->channels);
+ p2p_channels_dump(p2p, "peer channels", &peer->channels);
+ p2p_channels_intersect(&p2p->channels, &peer->channels,
+ &intersection);
+ if (go) {
+ p2p_channels_remove_freqs(&intersection, &p2p->no_go_freq);
+ p2p_channels_dump(p2p, "intersection after no-GO removal",
+ &intersection);
+ }
+
+ p2p_channels_to_freqs(&intersection, res.freq_list,
+ P2P_MAX_CHANNELS);
+
+ res.peer_config_timeout = go ? peer->client_timeout : peer->go_timeout;
+
+ p2p_clear_timeout(p2p);
+ p2p->ssid_set = 0;
+ peer->go_neg_req_sent = 0;
+ peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
+ peer->wps_method = WPS_NOT_READY;
+ peer->oob_pw_id = 0;
+ wpabuf_free(peer->go_neg_conf);
+ peer->go_neg_conf = NULL;
+
+ 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)
+{
+ p2p_dbg(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:
+ p2p_dbg(p2p, "Unsupported P2P Public Action frame type %d",
+ data[0]);
+ break;
+ }
+}
+
+
+static 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 < 4)
+ return;
+ if (WPA_GET_BE32(data) != P2P_IE_VENDOR_TYPE)
+ return;
+
+ data += 4;
+ len -= 4;
+
+ p2p_rx_p2p_action(p2p, sa, data, len, 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_BE32(data) != P2P_IE_VENDOR_TYPE)
+ return;
+ data += 4;
+ len -= 4;
+
+ /* P2P action frame */
+ p2p_dbg(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:
+ p2p_dbg(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:
+ p2p_dbg(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;
+ if (p2p->pending_listen_freq) {
+ p2p_dbg(p2p, "Clear pending_listen_freq for p2p_go_neg_start");
+ p2p->pending_listen_freq = 0;
+ }
+ p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
+ p2p->go_neg_peer->status = P2P_SC_SUCCESS;
+ /*
+ * Set new timeout to make sure a previously set one does not expire
+ * too quickly while waiting for the GO Negotiation to complete.
+ */
+ p2p_set_timeout(p2p, 0, 500000);
+ 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;
+ if (p2p->pending_listen_freq) {
+ p2p_dbg(p2p, "Clear pending_listen_freq for p2p_invite_start");
+ p2p->pending_listen_freq = 0;
+ }
+ p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
+ p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr,
+ p2p->invite_dev_pw_id);
+}
+
+
+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 (msg.listen_channel) {
+ int freq;
+
+ if (dev->country[0] == 0)
+ os_memcpy(dev->country, msg.listen_channel, 3);
+
+ freq = p2p_channel_to_freq(msg.listen_channel[3],
+ msg.listen_channel[4]);
+
+ if (freq > 0 && dev->listen_freq != freq) {
+ p2p_dbg(p2p,
+ "Updated peer " MACSTR " Listen channel (Probe Request): %d -> %d MHz",
+ MAC2STR(addr), dev->listen_freq, freq);
+ dev->listen_freq = freq;
+ }
+ }
+
+ p2p_update_peer_6ghz_capab(dev, &msg);
+ os_get_reltime(&dev->last_seen);
+ p2p_parse_free(&msg);
+ return; /* already known */
+ }
+
+ dev = p2p_create_device(p2p, addr);
+ if (dev == NULL) {
+ p2p_parse_free(&msg);
+ return;
+ }
+
+ os_get_reltime(&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(msg.listen_channel[3],
+ msg.listen_channel[4]);
+ }
+
+ p2p_copy_wps_info(p2p, dev, 1, &msg);
+
+ if (msg.wfd_subelems) {
+ wpabuf_free(dev->info.wfd_subelems);
+ dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
+ }
+
+ p2p_parse_free(&msg);
+
+ p2p_dbg(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_reltime(&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,
+ const u8 *query_hash,
+ u8 query_count)
+{
+ struct wpabuf *buf;
+ u8 *len;
+ int pw_id = -1;
+ size_t extra = 0;
+
+#ifdef CONFIG_WIFI_DISPLAY
+ if (p2p->wfd_ie_probe_resp)
+ extra = wpabuf_len(p2p->wfd_ie_probe_resp);
+#endif /* CONFIG_WIFI_DISPLAY */
+
+ if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P])
+ extra += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P]);
+
+ if (query_count)
+ extra += MAX_SVC_ADV_IE_LEN;
+
+ buf = wpabuf_alloc(1000 + extra);
+ if (buf == NULL)
+ return NULL;
+
+ if (p2p->go_neg_peer) {
+ /* Advertise immediate availability of WPS credential */
+ pw_id = p2p_wps_method_pw_id(p2p->go_neg_peer->wps_method);
+ }
+
+ if (p2p_build_wps_ie(p2p, buf, pw_id, 1) < 0) {
+ p2p_dbg(p2p, "Failed to build WPS IE for Probe Response");
+ wpabuf_free(buf);
+ return NULL;
+ }
+
+#ifdef CONFIG_WIFI_DISPLAY
+ if (p2p->wfd_ie_probe_resp)
+ wpabuf_put_buf(buf, p2p->wfd_ie_probe_resp);
+#endif /* CONFIG_WIFI_DISPLAY */
+
+ if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P])
+ wpabuf_put_buf(buf,
+ p2p->vendor_elem[VENDOR_ELEM_PROBE_RESP_P2P]);
+
+ /* P2P IE */
+ len = p2p_buf_add_ie_hdr(buf);
+ p2p_buf_add_capability(buf, p2p->dev_capab &
+ ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 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);
+
+ if (query_count) {
+ p2p_buf_add_service_instance(buf, p2p, query_count, query_hash,
+ p2p->p2ps_adv_list);
+ }
+
+ return buf;
+}
+
+static int p2p_build_probe_resp_buf(struct p2p_data *p2p, struct wpabuf *buf,
+ struct wpabuf *ies,
+ const u8 *addr, int rx_freq)
+{
+ struct ieee80211_mgmt *resp;
+ u8 channel, op_class;
+
+ resp = wpabuf_put(buf, offsetof(struct ieee80211_mgmt,
+ u.probe_resp.variable));
+
+ 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);
+
+ if (!rx_freq) {
+ channel = p2p->cfg->channel;
+ } else if (p2p_freq_to_channel(rx_freq, &op_class, &channel)) {
+ p2p_err(p2p, "Failed to convert freq to channel");
+ return -1;
+ }
+
+ wpabuf_put_u8(buf, WLAN_EID_DS_PARAMS);
+ wpabuf_put_u8(buf, 1);
+ wpabuf_put_u8(buf, channel);
+
+ wpabuf_put_buf(buf, ies);
+
+ return 0;
+}
+
+static int p2p_service_find_asp(struct p2p_data *p2p, const u8 *hash)
+{
+ struct p2ps_advertisement *adv_data;
+ int any_wfa;
+
+ p2p_dbg(p2p, "ASP find - ASP list: %p", p2p->p2ps_adv_list);
+
+ /* Wildcard org.wi-fi.wfds matches any WFA spec defined service */
+ any_wfa = os_memcmp(hash, p2p->wild_card_hash, P2PS_HASH_LEN) == 0;
+
+ adv_data = p2p->p2ps_adv_list;
+ while (adv_data) {
+ if (os_memcmp(hash, adv_data->hash, P2PS_HASH_LEN) == 0)
+ return 1; /* exact hash match */
+ if (any_wfa &&
+ os_strncmp(adv_data->svc_name, P2PS_WILD_HASH_STR,
+ os_strlen(P2PS_WILD_HASH_STR)) == 0)
+ return 1; /* WFA service match */
+ adv_data = adv_data->next;
+ }
+
+ return 0;
+}
+
+
+static enum p2p_probe_req_status
+p2p_reply_probe(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
+ const u8 *bssid, const u8 *ie, size_t ie_len,
+ unsigned int rx_freq)
+{
+ struct ieee802_11_elems elems;
+ struct wpabuf *buf;
+ struct p2p_message msg;
+ struct wpabuf *ies;
+
+ if (ieee802_11_parse_elems((u8 *) ie, ie_len, &elems, 0) ==
+ ParseFailed) {
+ /* Ignore invalid Probe Request frames */
+ p2p_dbg(p2p, "Could not parse Probe Request frame - ignore it");
+ return P2P_PREQ_MALFORMED;
+ }
+
+ if (elems.p2p == NULL) {
+ /* not a P2P probe - ignore it */
+ p2p_dbg(p2p, "Not a P2P probe - ignore it");
+ return P2P_PREQ_NOT_P2P;
+ }
+
+ if (dst && !is_broadcast_ether_addr(dst) &&
+ os_memcmp(dst, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
+ /* Not sent to the broadcast address or our P2P Device Address
+ */
+ p2p_dbg(p2p, "Probe Req DA " MACSTR " not ours - ignore it",
+ MAC2STR(dst));
+ return P2P_PREQ_NOT_PROCESSED;
+ }
+
+ if (bssid && !is_broadcast_ether_addr(bssid)) {
+ /* Not sent to the Wildcard BSSID */
+ p2p_dbg(p2p, "Probe Req BSSID " MACSTR " not wildcard - ignore it",
+ MAC2STR(bssid));
+ return P2P_PREQ_NOT_PROCESSED;
+ }
+
+ 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 */
+ p2p_dbg(p2p, "Probe Req not using P2P Wildcard SSID - ignore it");
+ return P2P_PREQ_NOT_PROCESSED;
+ }
+
+ if (supp_rates_11b_only(&elems)) {
+ /* Indicates support for 11b rates only */
+ p2p_dbg(p2p, "Probe Req with 11b rates only supported - ignore it");
+ return P2P_PREQ_NOT_P2P;
+ }
+
+ os_memset(&msg, 0, sizeof(msg));
+ if (p2p_parse_ies(ie, ie_len, &msg) < 0) {
+ /* Could not parse P2P attributes */
+ p2p_dbg(p2p, "Could not parse P2P attributes in Probe Req - ignore it");
+ return P2P_PREQ_NOT_P2P;
+ }
+
+ if (msg.service_hash && msg.service_hash_count) {
+ const u8 *hash = msg.service_hash;
+ u8 i;
+ int p2ps_svc_found = 0;
+
+ p2p_dbg(p2p, "in_listen=%d drv_in_listen=%d when received P2PS Probe Request at %u MHz; own Listen channel %u, pending listen freq %u MHz",
+ p2p->in_listen, p2p->drv_in_listen, rx_freq,
+ p2p->cfg->channel, p2p->pending_listen_freq);
+
+ if (!p2p->in_listen && !p2p->drv_in_listen &&
+ p2p->pending_listen_freq && rx_freq &&
+ rx_freq != p2p->pending_listen_freq) {
+ p2p_dbg(p2p, "Do not reply to Probe Request frame that was received on %u MHz while waiting to start Listen state on %u MHz",
+ rx_freq, p2p->pending_listen_freq);
+ p2p_parse_free(&msg);
+ return P2P_PREQ_NOT_LISTEN;
+ }
+
+ for (i = 0; i < msg.service_hash_count; i++) {
+ if (p2p_service_find_asp(p2p, hash)) {
+ p2p_dbg(p2p, "Service Hash match found: "
+ MACSTR, MAC2STR(hash));
+ p2ps_svc_found = 1;
+ break;
+ }
+ hash += P2PS_HASH_LEN;
+ }
+
+ /* Probed hash unknown */
+ if (!p2ps_svc_found) {
+ p2p_dbg(p2p, "No Service Hash match found");
+ p2p_parse_free(&msg);
+ return P2P_PREQ_NOT_PROCESSED;
+ }
+ } else {
+ /* This is not a P2PS Probe Request */
+ p2p_dbg(p2p, "No P2PS Hash in Probe Request");
+
+ if (!p2p->in_listen || !p2p->drv_in_listen) {
+ /* not in Listen state - ignore Probe Request */
+ p2p_dbg(p2p, "Not in Listen state (in_listen=%d drv_in_listen=%d) - ignore Probe Request",
+ p2p->in_listen, p2p->drv_in_listen);
+ p2p_parse_free(&msg);
+ return P2P_PREQ_NOT_LISTEN;
+ }
+ }
+
+ if (msg.device_id &&
+ os_memcmp(msg.device_id, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
+ /* Device ID did not match */
+ p2p_dbg(p2p, "Probe Req requested Device ID " MACSTR " did not match - ignore it",
+ MAC2STR(msg.device_id));
+ p2p_parse_free(&msg);
+ return P2P_PREQ_NOT_PROCESSED;
+ }
+
+ /* Check Requested Device Type match */
+ if (msg.wps_attributes &&
+ !p2p_match_dev_type(p2p, msg.wps_attributes)) {
+ /* No match with Requested Device Type */
+ p2p_dbg(p2p, "Probe Req requested Device Type did not match - ignore it");
+ p2p_parse_free(&msg);
+ return P2P_PREQ_NOT_PROCESSED;
+ }
+
+ if (!p2p->cfg->send_probe_resp) {
+ /* Response generated elsewhere */
+ p2p_dbg(p2p, "Probe Resp generated elsewhere - do not generate additional response");
+ p2p_parse_free(&msg);
+ return P2P_PREQ_NOT_PROCESSED;
+ }
+
+ p2p_dbg(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, msg.service_hash,
+ msg.service_hash_count);
+ p2p_parse_free(&msg);
+ if (ies == NULL)
+ return P2P_PREQ_NOT_PROCESSED;
+
+ buf = wpabuf_alloc(200 + wpabuf_len(ies));
+ if (buf == NULL) {
+ wpabuf_free(ies);
+ return P2P_PREQ_NOT_PROCESSED;
+ }
+
+ if (p2p_build_probe_resp_buf(p2p, buf, ies, addr, rx_freq)) {
+ wpabuf_free(ies);
+ wpabuf_free(buf);
+ return P2P_PREQ_NOT_PROCESSED;
+ }
+
+ wpabuf_free(ies);
+
+ p2p->cfg->send_probe_resp(p2p->cfg->cb_ctx, buf, rx_freq);
+
+ wpabuf_free(buf);
+
+ return P2P_PREQ_PROCESSED;
+}
+
+
+enum p2p_probe_req_status
+p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
+ const u8 *bssid, const u8 *ie, size_t ie_len,
+ unsigned int rx_freq, int p2p_lo_started)
+{
+ enum p2p_probe_req_status res;
+
+ p2p_add_dev_from_probe_req(p2p, addr, ie, ie_len);
+
+ if (p2p_lo_started) {
+ p2p_dbg(p2p,
+ "Probe Response is offloaded, do not reply Probe Request");
+ return P2P_PREQ_PROCESSED;
+ }
+
+ res = p2p_reply_probe(p2p, addr, dst, bssid, ie, ie_len, rx_freq);
+ if (res != P2P_PREQ_PROCESSED && res != P2P_PREQ_NOT_PROCESSED)
+ return res;
+
+ /*
+ * Activate a pending GO Negotiation/Invite flow if a received Probe
+ * Request frame is from an expected peer. Some devices may share the
+ * same address for P2P and non-P2P STA running simultaneously. The
+ * P2P_PREQ_PROCESSED and P2P_PREQ_NOT_PROCESSED p2p_reply_probe()
+ * return values verified above ensure we are handling a Probe Request
+ * frame from a P2P peer.
+ */
+ 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 &&
+ !(p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
+ /* Received a Probe Request from GO Negotiation peer */
+ p2p_dbg(p2p, "Found GO Negotiation peer - try to start GO negotiation from timeout");
+ eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL);
+ eloop_register_timeout(0, 0, p2p_go_neg_start, p2p, NULL);
+ return res;
+ }
+
+ if ((p2p->state == P2P_INVITE || p2p->state == P2P_INVITE_LISTEN) &&
+ p2p->invite_peer &&
+ (p2p->invite_peer->flags & P2P_DEV_WAIT_INV_REQ_ACK) &&
+ os_memcmp(addr, p2p->invite_peer->info.p2p_device_addr, ETH_ALEN)
+ == 0) {
+ /* Received a Probe Request from Invite peer */
+ p2p_dbg(p2p, "Found Invite peer - try to start Invite from timeout");
+ eloop_cancel_timeout(p2p_invite_start, p2p, NULL);
+ eloop_register_timeout(0, 0, p2p_invite_start, p2p, NULL);
+ return res;
+ }
+
+ return res;
+}
+
+
+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;
+ struct p2p_message msg;
+
+ if (p2p_ie == NULL)
+ return 0; /* WLAN AP is not a P2P manager */
+
+ os_memset(&msg, 0, sizeof(msg));
+ if (p2p_parse_p2p_ie(p2p_ie, &msg) < 0)
+ return 0;
+
+ p2p_dbg(p2p, "BSS P2P manageability %s",
+ msg.manageability ? "enabled" : "disabled");
+
+ if (!msg.manageability)
+ return 0;
+
+ /*
+ * (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;
+ size_t extra = 0;
+
+ if (!p2p_group)
+ return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len, p2p_ie);
+
+#ifdef CONFIG_WIFI_DISPLAY
+ if (p2p->wfd_ie_assoc_req)
+ extra = wpabuf_len(p2p->wfd_ie_assoc_req);
+#endif /* CONFIG_WIFI_DISPLAY */
+
+ if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ])
+ extra += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ]);
+
+ /*
+ * (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 + extra);
+ if (tmp == NULL)
+ return -1;
+
+#ifdef CONFIG_WIFI_DISPLAY
+ if (p2p->wfd_ie_assoc_req)
+ wpabuf_put_buf(tmp, p2p->wfd_ie_assoc_req);
+#endif /* CONFIG_WIFI_DISPLAY */
+
+ if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ])
+ wpabuf_put_buf(tmp,
+ p2p->vendor_elem[VENDOR_ELEM_P2P_ASSOC_REQ]);
+
+ 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;
+}
+
+
+struct p2ps_advertisement *
+p2p_service_p2ps_id(struct p2p_data *p2p, u32 adv_id)
+{
+ struct p2ps_advertisement *adv_data;
+
+ if (!p2p)
+ return NULL;
+
+ adv_data = p2p->p2ps_adv_list;
+ while (adv_data) {
+ if (adv_data->id == adv_id)
+ return adv_data;
+ adv_data = adv_data->next;
+ }
+
+ return NULL;
+}
+
+
+int p2p_service_del_asp(struct p2p_data *p2p, u32 adv_id)
+{
+ struct p2ps_advertisement *adv_data;
+ struct p2ps_advertisement **prior;
+
+ if (!p2p)
+ return -1;
+
+ adv_data = p2p->p2ps_adv_list;
+ prior = &p2p->p2ps_adv_list;
+ while (adv_data) {
+ if (adv_data->id == adv_id) {
+ p2p_dbg(p2p, "Delete ASP adv_id=0x%x", adv_id);
+ *prior = adv_data->next;
+ os_free(adv_data);
+ return 0;
+ }
+ prior = &adv_data->next;
+ adv_data = adv_data->next;
+ }
+
+ return -1;
+}
+
+
+int p2p_service_add_asp(struct p2p_data *p2p, int auto_accept, u32 adv_id,
+ const char *adv_str, u8 svc_state, u16 config_methods,
+ const char *svc_info, const u8 *cpt_priority)
+{
+ struct p2ps_advertisement *adv_data, *tmp, **prev;
+ u8 buf[P2PS_HASH_LEN];
+ size_t adv_data_len, adv_len, info_len = 0;
+ int i;
+
+ if (!p2p || !adv_str || !adv_str[0] || !cpt_priority)
+ return -1;
+
+ if (!(config_methods & p2p->cfg->config_methods)) {
+ p2p_dbg(p2p, "Config methods not supported svc: 0x%x dev: 0x%x",
+ config_methods, p2p->cfg->config_methods);
+ return -1;
+ }
+
+ if (!p2ps_gen_hash(p2p, adv_str, buf))
+ return -1;
+
+ if (svc_info)
+ info_len = os_strlen(svc_info);
+ adv_len = os_strlen(adv_str);
+ adv_data_len = sizeof(struct p2ps_advertisement) + adv_len + 1 +
+ info_len + 1;
+
+ adv_data = os_zalloc(adv_data_len);
+ if (!adv_data)
+ return -1;
+
+ os_memcpy(adv_data->hash, buf, P2PS_HASH_LEN);
+ adv_data->id = adv_id;
+ adv_data->state = svc_state;
+ adv_data->config_methods = config_methods & p2p->cfg->config_methods;
+ adv_data->auto_accept = (u8) auto_accept;
+ os_memcpy(adv_data->svc_name, adv_str, adv_len);
+
+ for (i = 0; cpt_priority[i] && i < P2PS_FEATURE_CAPAB_CPT_MAX; i++) {
+ adv_data->cpt_priority[i] = cpt_priority[i];
+ adv_data->cpt_mask |= cpt_priority[i];
+ }
+
+ if (svc_info && info_len) {
+ adv_data->svc_info = &adv_data->svc_name[adv_len + 1];
+ os_memcpy(adv_data->svc_info, svc_info, info_len);
+ }
+
+ /*
+ * Group Advertisements by service string. They do not need to be
+ * sorted, but groups allow easier Probe Response instance grouping
+ */
+ tmp = p2p->p2ps_adv_list;
+ prev = &p2p->p2ps_adv_list;
+ while (tmp) {
+ if (tmp->id == adv_data->id) {
+ if (os_strcmp(tmp->svc_name, adv_data->svc_name) != 0) {
+ os_free(adv_data);
+ return -1;
+ }
+ adv_data->next = tmp->next;
+ *prev = adv_data;
+ os_free(tmp);
+ goto inserted;
+ } else {
+ if (os_strcmp(tmp->svc_name, adv_data->svc_name) == 0) {
+ adv_data->next = tmp->next;
+ tmp->next = adv_data;
+ goto inserted;
+ }
+ }
+ prev = &tmp->next;
+ tmp = tmp->next;
+ }
+
+ /* No svc_name match found */
+ adv_data->next = p2p->p2ps_adv_list;
+ p2p->p2ps_adv_list = adv_data;
+
+inserted:
+ p2p_dbg(p2p,
+ "Added ASP advertisement adv_id=0x%x config_methods=0x%x svc_state=0x%x adv_str='%s' cpt_mask=0x%x",
+ adv_id, adv_data->config_methods, svc_state, adv_str,
+ adv_data->cpt_mask);
+
+ return 0;
+}
+
+
+void p2p_service_flush_asp(struct p2p_data *p2p)
+{
+ struct p2ps_advertisement *adv, *prev;
+
+ if (!p2p)
+ return;
+
+ adv = p2p->p2ps_adv_list;
+ while (adv) {
+ prev = adv;
+ adv = adv->next;
+ os_free(prev);
+ }
+
+ p2p->p2ps_adv_list = NULL;
+ p2ps_prov_free(p2p);
+ p2p_dbg(p2p, "All ASP advertisements flushed");
+}
+
+
+int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr)
+{
+ struct p2p_message msg;
+
+ os_memset(&msg, 0, sizeof(msg));
+ if (p2p_parse_p2p_ie(p2p_ie, &msg))
+ return -1;
+
+ if (msg.p2p_device_addr) {
+ os_memcpy(dev_addr, msg.p2p_device_addr, ETH_ALEN);
+ return 0;
+ } else if (msg.device_id) {
+ os_memcpy(dev_addr, msg.device_id, ETH_ALEN);
+ return 0;
+ }
+ return -1;
+}
+
+
+int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr)
+{
+ 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 -1;
+ ret = p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr);
+ 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) {
+ p2p_dbg(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) {
+ p2p_dbg(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 */
+ }
+
+ p2p_dbg(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) {
+ p2p_dbg(p2p, "No pending Group Formation - ignore group formation failure notification");
+ return; /* No pending Group Formation */
+ }
+
+ p2p_dbg(p2p, "Group Formation failed with " MACSTR,
+ MAC2STR(p2p->go_neg_peer->intended_addr));
+
+ p2p_clear_go_neg(p2p);
+}
+
+
+bool is_p2p_6ghz_disabled(struct p2p_data *p2p)
+{
+ if (p2p)
+ return p2p->cfg->p2p_6ghz_disable;
+ return false;
+}
+
+
+struct p2p_data * p2p_init(const struct p2p_config *cfg)
+{
+ struct p2p_data *p2p;
+
+ if (cfg->max_peers < 1 ||
+ cfg->passphrase_len < 8 || cfg->passphrase_len > 63)
+ 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);
+ if (cfg->pref_chan) {
+ p2p->cfg->pref_chan = os_malloc(cfg->num_pref_chan *
+ sizeof(struct p2p_channel));
+ if (p2p->cfg->pref_chan) {
+ os_memcpy(p2p->cfg->pref_chan, cfg->pref_chan,
+ cfg->num_pref_chan *
+ sizeof(struct p2p_channel));
+ } else
+ p2p->cfg->num_pref_chan = 0;
+ }
+
+ p2ps_gen_hash(p2p, P2PS_WILD_HASH_STR, p2p->wild_card_hash);
+
+ p2p->min_disc_int = 1;
+ p2p->max_disc_int = 3;
+ p2p->max_disc_tu = -1;
+
+ if (os_get_random(&p2p->next_tie_breaker, 1) < 0)
+ p2p->next_tie_breaker = 0;
+ 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);
+
+ p2p->go_timeout = 100;
+ p2p->client_timeout = 20;
+ p2p->num_p2p_sd_queries = 0;
+
+ p2p_dbg(p2p, "initialized");
+ p2p_channels_dump(p2p, "channels", &p2p->cfg->channels);
+ p2p_channels_dump(p2p, "cli_channels", &p2p->cfg->cli_channels);
+
+ return p2p;
+}
+
+
+void p2p_deinit(struct p2p_data *p2p)
+{
+#ifdef CONFIG_WIFI_DISPLAY
+ wpabuf_free(p2p->wfd_ie_beacon);
+ wpabuf_free(p2p->wfd_ie_probe_req);
+ wpabuf_free(p2p->wfd_ie_probe_resp);
+ wpabuf_free(p2p->wfd_ie_assoc_req);
+ wpabuf_free(p2p->wfd_ie_invitation);
+ wpabuf_free(p2p->wfd_ie_prov_disc_req);
+ wpabuf_free(p2p->wfd_ie_prov_disc_resp);
+ wpabuf_free(p2p->wfd_ie_go_neg);
+ wpabuf_free(p2p->wfd_dev_info);
+ wpabuf_free(p2p->wfd_assoc_bssid);
+ wpabuf_free(p2p->wfd_coupled_sink_info);
+ wpabuf_free(p2p->wfd_r2_dev_info);
+#endif /* CONFIG_WIFI_DISPLAY */
+
+ eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
+ eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL);
+ eloop_cancel_timeout(p2p_go_neg_wait_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->cfg->pref_chan);
+ os_free(p2p->groups);
+ p2ps_prov_free(p2p);
+ wpabuf_free(p2p->sd_resp);
+ p2p_remove_wps_vendor_extensions(p2p);
+ os_free(p2p->no_go_freq.range);
+ p2p_service_flush_asp(p2p);
+
+ os_free(p2p);
+}
+
+
+void p2p_flush(struct p2p_data *p2p)
+{
+ struct p2p_device *dev, *prev;
+
+ p2p_ext_listen(p2p, 0, 0);
+ p2p_stop_find(p2p);
+ 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);
+ p2p->ssid_set = 0;
+ p2ps_prov_free(p2p);
+ p2p_reset_pending_pd(p2p);
+ p2p->override_pref_op_class = 0;
+ p2p->override_pref_channel = 0;
+}
+
+
+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;
+
+ p2p_dbg(p2p, "Unauthorizing " MACSTR, MAC2STR(addr));
+
+ if (p2p->go_neg_peer == dev) {
+ eloop_cancel_timeout(p2p_go_neg_wait_timeout, p2p, NULL);
+ p2p->go_neg_peer = NULL;
+ }
+
+ dev->wps_method = WPS_NOT_READY;
+ dev->oob_pw_id = 0;
+ dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
+ dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
+
+ 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;
+}
+
+
+static int p2p_pre_find_operation(struct p2p_data *p2p, struct p2p_device *dev)
+{
+ int res;
+
+ if (dev->sd_pending_bcast_queries == 0) {
+ /* Initialize with total number of registered broadcast
+ * SD queries. */
+ dev->sd_pending_bcast_queries = p2p->num_p2p_sd_queries;
+ }
+
+ res = p2p_start_sd(p2p, dev);
+ if (res == -2)
+ return -2;
+ if (res == 0)
+ return 1;
+
+ if (dev->req_config_methods &&
+ !(dev->flags & P2P_DEV_PD_FOR_JOIN)) {
+ p2p_dbg(p2p, "Send pending Provision 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) == 0)
+ return 1;
+ }
+
+ return 0;
+}
+
+
+void p2p_continue_find(struct p2p_data *p2p)
+{
+ struct p2p_device *dev;
+ int found, res;
+
+ p2p_set_state(p2p, P2P_SEARCH);
+
+ /* Continue from the device following the last iteration */
+ found = 0;
+ dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
+ if (dev == p2p->last_p2p_find_oper) {
+ found = 1;
+ continue;
+ }
+ if (!found)
+ continue;
+ res = p2p_pre_find_operation(p2p, dev);
+ if (res > 0) {
+ p2p->last_p2p_find_oper = dev;
+ return;
+ }
+ if (res == -2)
+ goto skip_sd;
+ }
+
+ /*
+ * Wrap around to the beginning of the list and continue until the last
+ * iteration device.
+ */
+ dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
+ res = p2p_pre_find_operation(p2p, dev);
+ if (res > 0) {
+ p2p->last_p2p_find_oper = dev;
+ return;
+ }
+ if (res == -2)
+ goto skip_sd;
+ if (dev == p2p->last_p2p_find_oper)
+ break;
+ }
+
+skip_sd:
+ os_memset(p2p->sd_query_no_ack, 0, ETH_ALEN);
+ p2p_listen_in_find(p2p, 1);
+}
+
+
+static void p2p_sd_cb(struct p2p_data *p2p, int success)
+{
+ p2p_dbg(p2p, "Service Discovery Query TX callback: success=%d",
+ success);
+ p2p->pending_action_state = P2P_NO_PENDING_ACTION;
+
+ if (!success) {
+ if (p2p->sd_peer) {
+ if (is_zero_ether_addr(p2p->sd_query_no_ack)) {
+ os_memcpy(p2p->sd_query_no_ack,
+ p2p->sd_peer->info.p2p_device_addr,
+ ETH_ALEN);
+ p2p_dbg(p2p,
+ "First SD Query no-ACK in this search iteration: "
+ MACSTR, MAC2STR(p2p->sd_query_no_ack));
+ }
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
+ }
+ p2p->sd_peer = NULL;
+ if (p2p->state != P2P_IDLE)
+ p2p_continue_find(p2p);
+ return;
+ }
+
+ if (p2p->sd_peer == NULL) {
+ p2p_dbg(p2p, "No SD peer entry known");
+ if (p2p->state != P2P_IDLE)
+ p2p_continue_find(p2p);
+ return;
+ }
+
+ if (p2p->sd_query && p2p->sd_query->for_all_peers) {
+ /* Update the pending broadcast SD query count for this device
+ */
+ p2p->sd_peer->sd_pending_bcast_queries--;
+
+ /*
+ * If there are no pending broadcast queries for this device,
+ * mark it as done (-1).
+ */
+ if (p2p->sd_peer->sd_pending_bcast_queries == 0)
+ p2p->sd_peer->sd_pending_bcast_queries = -1;
+ }
+
+ /* Wait for response from the peer */
+ p2p_set_state(p2p, P2P_SD_DURING_FIND);
+ p2p_set_timeout(p2p, 0, 200000);
+}
+
+
+/**
+ * p2p_retry_pd - Retry any pending provision disc requests in IDLE state
+ * @p2p: P2P module context from p2p_init()
+ */
+static void p2p_retry_pd(struct p2p_data *p2p)
+{
+ struct p2p_device *dev;
+
+ /*
+ * Retry the prov disc req attempt only for the peer that the user had
+ * requested.
+ */
+
+ dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
+ if (os_memcmp(p2p->pending_pd_devaddr,
+ dev->info.p2p_device_addr, ETH_ALEN) != 0)
+ continue;
+ if (!dev->req_config_methods)
+ continue;
+
+ p2p_dbg(p2p, "Send pending Provision Discovery Request to "
+ MACSTR " (config methods 0x%x)",
+ MAC2STR(dev->info.p2p_device_addr),
+ dev->req_config_methods);
+ p2p_send_prov_disc_req(p2p, dev,
+ dev->flags & P2P_DEV_PD_FOR_JOIN,
+ p2p->pd_force_freq);
+ return;
+ }
+}
+
+
+static void p2p_prov_disc_cb(struct p2p_data *p2p, int success)
+{
+ p2p_dbg(p2p, "Provision Discovery Request TX callback: success=%d",
+ success);
+
+ /*
+ * Postpone resetting the pending action state till after we actually
+ * time out. This allows us to take some action like notifying any
+ * interested parties about no response to the request.
+ *
+ * When the timer (below) goes off we check in IDLE, SEARCH, or
+ * LISTEN_ONLY state, which are the only allowed states to issue a PD
+ * requests in, if this was still pending and then raise notification.
+ */
+
+ if (!success) {
+ p2p->pending_action_state = P2P_NO_PENDING_ACTION;
+
+ if (p2p->user_initiated_pd &&
+ (p2p->state == P2P_SEARCH || p2p->state == P2P_LISTEN_ONLY))
+ {
+ /* Retry request from timeout to avoid busy loops */
+ p2p->pending_action_state = P2P_PENDING_PD;
+ p2p_set_timeout(p2p, 0, 50000);
+ } else if (p2p->state != P2P_IDLE)
+ p2p_continue_find(p2p);
+ else if (p2p->user_initiated_pd) {
+ p2p->pending_action_state = P2P_PENDING_PD;
+ p2p_set_timeout(p2p, 0, 300000);
+ }
+ return;
+ }
+
+ /*
+ * If after PD Request the peer doesn't expect to receive PD Response
+ * the PD Request ACK indicates a completion of the current PD. This
+ * happens only on the advertiser side sending the follow-on PD Request
+ * with the status different than 12 (Success: accepted by user).
+ */
+ if (p2p->p2ps_prov && !p2p->p2ps_prov->pd_seeker &&
+ p2p->p2ps_prov->status != P2P_SC_SUCCESS_DEFERRED) {
+ p2p_dbg(p2p, "P2PS PD completion on Follow-on PD Request ACK");
+
+ if (p2p->send_action_in_progress) {
+ p2p->send_action_in_progress = 0;
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
+ }
+
+ p2p->pending_action_state = P2P_NO_PENDING_ACTION;
+
+ if (p2p->cfg->p2ps_prov_complete) {
+ p2p->cfg->p2ps_prov_complete(
+ p2p->cfg->cb_ctx,
+ p2p->p2ps_prov->status,
+ p2p->p2ps_prov->adv_mac,
+ p2p->p2ps_prov->adv_mac,
+ p2p->p2ps_prov->session_mac,
+ NULL, p2p->p2ps_prov->adv_id,
+ p2p->p2ps_prov->session_id,
+ 0, 0, NULL, 0, 0, 0,
+ NULL, NULL, 0, 0, NULL, 0);
+ }
+
+ if (p2p->user_initiated_pd)
+ p2p_reset_pending_pd(p2p);
+
+ p2ps_prov_free(p2p);
+ return;
+ }
+
+ /*
+ * This postponing, of resetting pending_action_state, needs to be
+ * done only for user initiated PD requests and not internal ones.
+ */
+ if (p2p->user_initiated_pd)
+ p2p->pending_action_state = P2P_PENDING_PD;
+ else
+ p2p->pending_action_state = P2P_NO_PENDING_ACTION;
+
+ /* 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);
+}
+
+
+static void p2p_prov_disc_resp_cb(struct p2p_data *p2p, int success)
+{
+ p2p_dbg(p2p, "Provision Discovery Response TX callback: success=%d",
+ success);
+
+ if (p2p->send_action_in_progress) {
+ p2p->send_action_in_progress = 0;
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
+ }
+
+ p2p->pending_action_state = P2P_NO_PENDING_ACTION;
+
+ if (!success) {
+ if (p2p->state == P2P_SEARCH)
+ p2p_continue_find(p2p);
+ return;
+ }
+
+ if (!p2p->cfg->prov_disc_resp_cb ||
+ p2p->cfg->prov_disc_resp_cb(p2p->cfg->cb_ctx) < 1) {
+ if (p2p->state == P2P_SEARCH)
+ p2p_continue_find(p2p);
+ return;
+ }
+
+ p2p_dbg(p2p,
+ "Post-Provision Discovery operations started - do not try to continue other P2P operations");
+}
+
+
+int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
+ struct os_reltime *rx_time, int level, const u8 *ies,
+ size_t ies_len)
+{
+ if (os_reltime_before(rx_time, &p2p->find_start)) {
+ /*
+ * The driver may have cached (e.g., in cfg80211 BSS table) the
+ * scan results for relatively long time. To avoid reporting
+ * stale information, update P2P peers only based on results
+ * that have based on frames received after the last p2p_find
+ * operation was started.
+ */
+ p2p_dbg(p2p, "Ignore old scan result for " MACSTR
+ " (rx_time=%u.%06u find_start=%u.%06u)",
+ MAC2STR(bssid), (unsigned int) rx_time->sec,
+ (unsigned int) rx_time->usec,
+ (unsigned int) p2p->find_start.sec,
+ (unsigned int) p2p->find_start.usec);
+ return 0;
+ }
+
+ p2p_add_device(p2p, bssid, freq, rx_time, level, ies, ies_len, 1);
+
+ return 0;
+}
+
+
+void p2p_scan_res_handled(struct p2p_data *p2p, unsigned int delay)
+{
+ if (!p2p->p2p_scan_running) {
+ p2p_dbg(p2p, "p2p_scan was not running, but scan results received");
+ }
+ p2p->p2p_scan_running = 0;
+
+ /* Use this delay only when p2p_find doesn't set it */
+ if (!p2p->search_delay)
+ p2p->search_delay = delay;
+
+ 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, const u8 *dev_id,
+ unsigned int bands)
+{
+ u8 dev_capab;
+ u8 *len;
+
+#ifdef CONFIG_WIFI_DISPLAY
+ if (p2p->wfd_ie_probe_req)
+ wpabuf_put_buf(ies, p2p->wfd_ie_probe_req);
+#endif /* CONFIG_WIFI_DISPLAY */
+
+ if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P])
+ wpabuf_put_buf(ies,
+ p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P]);
+
+ len = p2p_buf_add_ie_hdr(ies);
+
+ dev_capab = p2p->dev_capab & ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
+
+ /* P2PS requires Probe Request frames to include SD bit */
+ if (p2p->p2ps_seek && p2p->p2ps_seek_count)
+ dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
+
+ p2p_buf_add_capability(ies, dev_capab, 0);
+
+ if (dev_id)
+ p2p_buf_add_device_id(ies, dev_id);
+ 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);
+
+ if (bands & BAND_60_GHZ)
+ p2p_buf_add_device_info(ies, p2p, NULL);
+
+ if (p2p->p2ps_seek && p2p->p2ps_seek_count)
+ p2p_buf_add_service_hash(ies, p2p);
+
+ /* TODO: p2p_buf_add_operating_channel() if GO */
+ p2p_buf_update_ie_hdr(ies, len);
+}
+
+
+size_t p2p_scan_ie_buf_len(struct p2p_data *p2p)
+{
+ size_t len = 100;
+
+#ifdef CONFIG_WIFI_DISPLAY
+ if (p2p && p2p->wfd_ie_probe_req)
+ len += wpabuf_len(p2p->wfd_ie_probe_req);
+#endif /* CONFIG_WIFI_DISPLAY */
+
+ if (p2p && p2p->vendor_elem &&
+ p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P])
+ len += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P]);
+
+ return 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;
+ int timeout;
+
+ p2p_dbg(p2p, "GO Negotiation Request TX callback: success=%d", success);
+
+ if (dev == NULL) {
+ p2p_dbg(p2p, "No pending GO Negotiation");
+ return;
+ }
+
+ if (success) {
+ if (dev->flags & P2P_DEV_USER_REJECTED) {
+ p2p_set_state(p2p, P2P_IDLE);
+ return;
+ }
+ } else if (dev->go_neg_req_sent) {
+ /* Cancel the increment from p2p_connect_send() on failure */
+ dev->go_neg_req_sent--;
+ }
+
+ if (!success &&
+ (dev->info.dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY) &&
+ !is_zero_ether_addr(dev->member_in_go_dev)) {
+ p2p_dbg(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);
+ timeout = success ? 500000 : 100000;
+ if (!success && p2p->go_neg_peer &&
+ (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE)) {
+ unsigned int r;
+ /*
+ * Peer is expected to wait our response and we will skip the
+ * listen phase. Add some randomness to the wait time here to
+ * make it less likely to hit cases where we could end up in
+ * sync with peer not listening.
+ */
+ if (os_get_random((u8 *) &r, sizeof(r)) < 0)
+ r = 0;
+ timeout += r % 100000;
+ }
+ p2p_set_timeout(p2p, 0, timeout);
+}
+
+
+static void p2p_go_neg_resp_cb(struct p2p_data *p2p, int success)
+{
+ p2p_dbg(p2p, "GO Negotiation Response TX callback: success=%d",
+ success);
+ if (!p2p->go_neg_peer && p2p->state == P2P_PROVISIONING) {
+ p2p_dbg(p2p, "Ignore TX callback event - GO Negotiation is not running anymore");
+ return;
+ }
+ p2p_set_state(p2p, P2P_CONNECT);
+ p2p_set_timeout(p2p, 0, 500000);
+}
+
+
+static void p2p_go_neg_resp_failure_cb(struct p2p_data *p2p, int success,
+ const u8 *addr)
+{
+ p2p_dbg(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->status);
+ return;
+ }
+
+ if (success) {
+ struct p2p_device *dev;
+ dev = p2p_get_device(p2p, addr);
+ if (dev &&
+ dev->status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE)
+ dev->flags |= P2P_DEV_PEER_WAITING_RESPONSE;
+ }
+
+ if (p2p->state == P2P_SEARCH || p2p->state == P2P_SD_DURING_FIND)
+ p2p_continue_find(p2p);
+}
+
+
+static void p2p_go_neg_conf_cb(struct p2p_data *p2p,
+ enum p2p_send_action_result result)
+{
+ struct p2p_device *dev;
+
+ p2p_dbg(p2p, "GO Negotiation Confirm TX callback: result=%d", result);
+ if (result == P2P_SEND_ACTION_FAILED) {
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
+ p2p_go_neg_failed(p2p, -1);
+ return;
+ }
+
+ dev = p2p->go_neg_peer;
+
+ if (result == P2P_SEND_ACTION_NO_ACK) {
+ /*
+ * Retry GO Negotiation Confirmation
+ * P2P_GO_NEG_CNF_MAX_RETRY_COUNT times if we did not receive
+ * ACK for confirmation.
+ */
+ if (dev && dev->go_neg_conf &&
+ dev->go_neg_conf_sent <= P2P_GO_NEG_CNF_MAX_RETRY_COUNT) {
+ p2p_dbg(p2p, "GO Negotiation Confirm retry %d",
+ dev->go_neg_conf_sent);
+ p2p->pending_action_state = P2P_PENDING_GO_NEG_CONFIRM;
+ if (p2p_send_action(p2p, dev->go_neg_conf_freq,
+ dev->info.p2p_device_addr,
+ p2p->cfg->dev_addr,
+ dev->info.p2p_device_addr,
+ wpabuf_head(dev->go_neg_conf),
+ wpabuf_len(dev->go_neg_conf), 0) >=
+ 0) {
+ dev->go_neg_conf_sent++;
+ return;
+ }
+ p2p_dbg(p2p, "Failed to re-send Action frame");
+
+ /*
+ * Continue with the assumption that the first attempt
+ * went through and just the ACK frame was lost.
+ */
+ }
+
+ /*
+ * 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.
+ */
+ p2p_dbg(p2p, "Assume GO Negotiation Confirm TX was actually received by the peer even though Ack was not reported");
+ }
+
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
+
+ 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;
+
+ p2p_dbg(p2p, "Action frame TX callback (state=%d freq=%u dst=" MACSTR
+ " src=" MACSTR " bssid=" MACSTR " result=%d p2p_state=%s)",
+ p2p->pending_action_state, freq, MAC2STR(dst), MAC2STR(src),
+ MAC2STR(bssid), result, p2p_state_txt(p2p->state));
+ 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:
+ if (p2p->send_action_in_progress) {
+ p2p->send_action_in_progress = 0;
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
+ }
+ 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, dst);
+ 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_PD_RESPONSE:
+ p2p_prov_disc_resp_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) {
+ p2p_dbg(p2p, "Client discoverability remain-awake completed");
+ p2p->pending_client_disc_freq = 0;
+ return;
+ }
+
+ if (freq != p2p->pending_listen_freq) {
+ p2p_dbg(p2p, "Unexpected listen callback for freq=%u duration=%u (pending_listen_freq=%u)",
+ freq, duration, p2p->pending_listen_freq);
+ return;
+ }
+
+ p2p_dbg(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)
+{
+ p2p_dbg(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_WAIT_PEER_CONNECT && p2p->go_neg_peer &&
+ p2p->pending_listen_freq) {
+ /*
+ * Better wait a bit if the driver is unable to start
+ * offchannel operation for some reason to continue with
+ * P2P_WAIT_PEER_(IDLE/CONNECT) state transitions.
+ */
+ p2p_dbg(p2p,
+ "Listen operation did not seem to start - delay idle phase to avoid busy loop");
+ p2p_set_timeout(p2p, 0, 100000);
+ return 1;
+ }
+
+ if (p2p->state == P2P_CONNECT_LISTEN && p2p->go_neg_peer) {
+ if (p2p->go_neg_peer->connect_reqs >= 120) {
+ p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response");
+ p2p_go_neg_failed(p2p, -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) {
+ if (p2p->p2p_scan_running) {
+ /*
+ * Search is already in progress. This can happen if
+ * an Action frame RX is reported immediately after
+ * the end of a remain-on-channel operation and the
+ * response frame to that is sent using an offchannel
+ * operation while in p2p_find. Avoid an attempt to
+ * restart a scan here.
+ */
+ p2p_dbg(p2p, "p2p_scan already in progress - do not try to start a new one");
+ return 1;
+ }
+ if (p2p->pending_listen_freq) {
+ /*
+ * Better wait a bit if the driver is unable to start
+ * offchannel operation for some reason. p2p_search()
+ * will be started from internal timeout.
+ */
+ p2p_dbg(p2p, "Listen operation did not seem to start - delay search phase to avoid busy loop");
+ p2p_set_timeout(p2p, 0, 100000);
+ return 1;
+ }
+ if (p2p->search_delay) {
+ p2p_dbg(p2p, "Delay search operation by %u ms",
+ p2p->search_delay);
+ p2p_set_timeout(p2p, p2p->search_delay / 1000,
+ (p2p->search_delay % 1000) * 1000);
+ return 1;
+ }
+ 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);
+ if (p2p->go_neg_peer &&
+ (p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
+ p2p_dbg(p2p, "Wait for GO Negotiation Confirm timed out - assume GO Negotiation failed");
+ p2p_go_neg_failed(p2p, -1);
+ return;
+ }
+ if (p2p->go_neg_peer &&
+ (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE) &&
+ p2p->go_neg_peer->connect_reqs < 120) {
+ p2p_dbg(p2p, "Peer expected to wait our response - skip listen");
+ p2p_connect_send(p2p, p2p->go_neg_peer);
+ return;
+ }
+ if (p2p->go_neg_peer && p2p->go_neg_peer->oob_go_neg_freq > 0) {
+ p2p_dbg(p2p, "Skip connect-listen since GO Neg channel known (OOB)");
+ p2p_set_state(p2p, P2P_CONNECT_LISTEN);
+ p2p_set_timeout(p2p, 0, 30000);
+ return;
+ }
+ p2p_set_state(p2p, P2P_CONNECT_LISTEN);
+ p2p_listen_in_find(p2p, 0);
+}
+
+
+static void p2p_timeout_connect_listen(struct p2p_data *p2p)
+{
+ if (p2p->go_neg_peer) {
+ if (p2p->drv_in_listen) {
+ p2p_dbg(p2p, "Driver is still in Listen state; wait for it to complete");
+ return;
+ }
+
+ if (p2p->go_neg_peer->connect_reqs >= 120) {
+ p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response");
+ p2p_go_neg_failed(p2p, -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)
+{
+ p2p_set_state(p2p, P2P_WAIT_PEER_IDLE);
+
+ if (p2p->cfg->is_concurrent_session_active &&
+ p2p->cfg->is_concurrent_session_active(p2p->cfg->cb_ctx))
+ p2p_set_timeout(p2p, 0, 500000);
+ else
+ p2p_set_timeout(p2p, 0, 200000);
+}
+
+
+static void p2p_timeout_wait_peer_idle(struct p2p_data *p2p)
+{
+ struct p2p_device *dev = p2p->go_neg_peer;
+
+ if (dev == NULL) {
+ p2p_dbg(p2p, "Unknown GO Neg peer - stop GO Neg wait");
+ return;
+ }
+
+ p2p_dbg(p2p, "Go to Listen state while waiting for the peer to become ready for GO Negotiation");
+ p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
+ if (p2p->pending_listen_freq) {
+ p2p_dbg(p2p, "Clear pending_listen_freq for %s", __func__);
+ p2p->pending_listen_freq = 0;
+ }
+ p2p_set_state(p2p, P2P_WAIT_PEER_CONNECT);
+ p2p_listen_in_find(p2p, 0);
+}
+
+
+static void p2p_timeout_sd_during_find(struct p2p_data *p2p)
+{
+ p2p_dbg(p2p, "Service Discovery Query timeout");
+ if (p2p->sd_peer) {
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
+ p2p->sd_peer = NULL;
+ }
+ p2p_continue_find(p2p);
+}
+
+
+static void p2p_timeout_prov_disc_during_find(struct p2p_data *p2p)
+{
+ p2p_dbg(p2p, "Provision Discovery Request timeout");
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
+ p2p_continue_find(p2p);
+}
+
+
+static void p2p_timeout_prov_disc_req(struct p2p_data *p2p)
+{
+ u32 adv_id = 0;
+ u8 *adv_mac = NULL;
+
+ p2p->pending_action_state = P2P_NO_PENDING_ACTION;
+
+ /*
+ * For user initiated PD requests that we have not gotten any responses
+ * for while in IDLE state, we retry them a couple of times before
+ * giving up.
+ */
+ if (!p2p->user_initiated_pd)
+ return;
+
+ p2p_dbg(p2p, "User initiated Provision Discovery Request timeout");
+
+ if (p2p->pd_retries) {
+ p2p->pd_retries--;
+ p2p_retry_pd(p2p);
+ } else {
+ struct p2p_device *dev;
+ int for_join = 0;
+
+ dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
+ if (os_memcmp(p2p->pending_pd_devaddr,
+ dev->info.p2p_device_addr, ETH_ALEN) != 0)
+ continue;
+ if (dev->req_config_methods &&
+ (dev->flags & P2P_DEV_PD_FOR_JOIN))
+ for_join = 1;
+ }
+
+ if (p2p->p2ps_prov) {
+ adv_id = p2p->p2ps_prov->adv_id;
+ adv_mac = p2p->p2ps_prov->adv_mac;
+ }
+
+ if (p2p->cfg->prov_disc_fail)
+ p2p->cfg->prov_disc_fail(p2p->cfg->cb_ctx,
+ p2p->pending_pd_devaddr,
+ for_join ?
+ P2P_PROV_DISC_TIMEOUT_JOIN :
+ P2P_PROV_DISC_TIMEOUT,
+ adv_id, adv_mac, NULL);
+ p2p_reset_pending_pd(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.
+ * Wait 120 ms to let the P2P GO to send its beacon on the
+ * intended TBTT.
+ */
+ p2p_dbg(p2p, "Inviting in active GO role - wait on operating channel");
+ p2p_set_timeout(p2p, 0, 120000);
+ return;
+ }
+ p2p_listen_in_find(p2p, 0);
+}
+
+
+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, p2p->invite_dev_pw_id);
+ } else {
+ if (p2p->invite_peer) {
+ p2p_dbg(p2p, "Invitation Request retry limit reached");
+ if (p2p->cfg->invitation_result)
+ p2p->cfg->invitation_result(
+ p2p->cfg->cb_ctx, -1, NULL, NULL,
+ p2p->invite_peer->info.p2p_device_addr,
+ 0, 0);
+ }
+ p2p_set_state(p2p, P2P_IDLE);
+ }
+}
+
+
+static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx)
+{
+ struct p2p_data *p2p = eloop_ctx;
+
+ p2p_dbg(p2p, "Timeout (state=%s)", p2p_state_txt(p2p->state));
+
+ p2p->in_listen = 0;
+ if (p2p->drv_in_listen) {
+ p2p_dbg(p2p, "Driver is still in listen state - stop it");
+ p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
+ }
+
+ switch (p2p->state) {
+ case P2P_IDLE:
+ /* Check if we timed out waiting for PD req */
+ if (p2p->pending_action_state == P2P_PENDING_PD)
+ p2p_timeout_prov_disc_req(p2p);
+ break;
+ case P2P_SEARCH:
+ /* Check if we timed out waiting for PD req */
+ if (p2p->pending_action_state == P2P_PENDING_PD)
+ p2p_timeout_prov_disc_req(p2p);
+ if (p2p->search_delay && !p2p->in_search_delay) {
+ p2p_dbg(p2p, "Delay search operation by %u ms",
+ p2p->search_delay);
+ p2p->in_search_delay = 1;
+ p2p_set_timeout(p2p, p2p->search_delay / 1000,
+ (p2p->search_delay % 1000) * 1000);
+ break;
+ }
+ p2p->in_search_delay = 0;
+ 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:
+ /* Check if we timed out waiting for PD req */
+ if (p2p->pending_action_state == P2P_PENDING_PD)
+ p2p_timeout_prov_disc_req(p2p);
+
+ if (p2p->ext_listen_only) {
+ p2p_dbg(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);
+ p2p_dbg(p2p, "Local request to reject connection attempts by peer "
+ MACSTR, MAC2STR(peer_addr));
+ if (dev == NULL) {
+ p2p_dbg(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;
+}
+
+
+const char * p2p_wps_method_text(enum p2p_wps_method method)
+{
+ switch (method) {
+ case WPS_NOT_READY:
+ return "not-ready";
+ case WPS_PIN_DISPLAY:
+ return "Display";
+ case WPS_PIN_KEYPAD:
+ return "Keypad";
+ case WPS_PBC:
+ return "PBC";
+ case WPS_NFC:
+ return "NFC";
+ case WPS_P2PS:
+ return "P2PS";
+ }
+
+ 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 "??";
+}
+
+
+const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
+ const u8 *addr, int next)
+{
+ struct p2p_device *dev;
+
+ 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 NULL;
+
+ return &dev->info;
+}
+
+
+int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
+ char *buf, size_t buflen)
+{
+ struct p2p_device *dev;
+ int res;
+ char *pos, *end;
+ struct os_reltime now;
+
+ if (info == NULL)
+ return -1;
+
+ dev = (struct p2p_device *) (((u8 *) info) -
+ offsetof(struct p2p_device, info));
+
+ pos = buf;
+ end = buf + buflen;
+
+ os_get_reltime(&now);
+ res = os_snprintf(pos, end - pos,
+ "age=%d\n"
+ "listen_freq=%d\n"
+ "wps_method=%s\n"
+ "interface_addr=" MACSTR "\n"
+ "member_in_go_dev=" MACSTR "\n"
+ "member_in_go_iface=" MACSTR "\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"
+ "invitation_reqs=%u\n",
+ (int) (now.sec - dev->last_seen.sec),
+ dev->listen_freq,
+ p2p_wps_method_text(dev->wps_method),
+ MAC2STR(dev->interface_addr),
+ MAC2STR(dev->member_in_go_dev),
+ MAC2STR(dev->member_in_go_iface),
+ 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_PD_PEER_DISPLAY ?
+ "[PD_PEER_DISPLAY]" : "",
+ dev->flags & P2P_DEV_PD_PEER_KEYPAD ?
+ "[PD_PEER_KEYPAD]" : "",
+ dev->flags & P2P_DEV_PD_PEER_P2PS ?
+ "[PD_PEER_P2PS]" : "",
+ 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->flags & P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT ?
+ "[LAST_SEEN_AS_GROUP_CLIENT]" : "",
+ dev->status,
+ dev->invitation_reqs);
+ if (os_snprintf_error(end - pos, res))
+ 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 (os_snprintf_error(end - pos, res))
+ 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 (os_snprintf_error(end - pos, res))
+ return pos - buf;
+ pos += res;
+ }
+
+#ifdef CONFIG_WIFI_DISPLAY
+ if (dev->info.wfd_subelems) {
+ res = os_snprintf(pos, end - pos, "wfd_subelems=");
+ if (os_snprintf_error(end - pos, res))
+ return pos - buf;
+ pos += res;
+
+ pos += wpa_snprintf_hex(pos, end - pos,
+ wpabuf_head(dev->info.wfd_subelems),
+ wpabuf_len(dev->info.wfd_subelems));
+
+ res = os_snprintf(pos, end - pos, "\n");
+ if (os_snprintf_error(end - pos, res))
+ return pos - buf;
+ pos += res;
+ }
+#endif /* CONFIG_WIFI_DISPLAY */
+
+ return pos - buf;
+}
+
+
+int p2p_peer_known(struct p2p_data *p2p, const u8 *addr)
+{
+ return p2p_get_device(p2p, addr) != NULL;
+}
+
+
+void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled)
+{
+ if (enabled) {
+ p2p_dbg(p2p, "Client discoverability enabled");
+ p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
+ } else {
+ p2p_dbg(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;
+
+ p2p_dbg(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) {
+ p2p_dbg(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;
+
+ p2p_dbg(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) {
+ p2p_dbg(p2p, "Ignore P2P Presence Request for unknown group "
+ MACSTR, MAC2STR(da));
+ return;
+ }
+
+ if (p2p_parse(data, len, &msg) < 0) {
+ p2p_dbg(p2p, "Failed to parse P2P Presence Request");
+ status = P2P_SC_FAIL_INVALID_PARAMS;
+ goto fail;
+ }
+ parsed = 1;
+
+ if (msg.noa == NULL) {
+ p2p_dbg(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) {
+ p2p_dbg(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;
+
+ p2p_dbg(p2p, "Received P2P Action - P2P Presence Response");
+
+ if (p2p_parse(data, len, &msg) < 0) {
+ p2p_dbg(p2p, "Failed to parse P2P Presence Response");
+ return;
+ }
+
+ if (msg.status == NULL || msg.noa == NULL) {
+ p2p_dbg(p2p, "No Status or NoA attribute in P2P Presence Response");
+ p2p_parse_free(&msg);
+ return;
+ }
+
+ if (p2p->cfg->presence_resp) {
+ p2p->cfg->presence_resp(p2p->cfg->cb_ctx, sa, *msg.status,
+ msg.noa, msg.noa_len);
+ }
+
+ if (*msg.status) {
+ p2p_dbg(p2p, "P2P Presence Request was rejected: status %u",
+ *msg.status);
+ p2p_parse_free(&msg);
+ return;
+ }
+
+ p2p_dbg(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->cfg->is_p2p_in_progress &&
+ p2p->cfg->is_p2p_in_progress(p2p->cfg->cb_ctx)) ||
+ (p2p->pending_action_state == P2P_PENDING_PD &&
+ p2p->pd_retries > 0)) {
+ p2p_dbg(p2p, "Operation in progress - skip Extended Listen timeout (%s)",
+ p2p_state_txt(p2p->state));
+ return;
+ }
+
+ 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.
+ */
+ p2p_dbg(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) {
+ p2p_dbg(p2p, "Skip Extended Listen timeout in active state (%s)", p2p_state_txt(p2p->state));
+ return;
+ }
+
+ p2p_dbg(p2p, "Extended Listen timeout");
+ p2p->ext_listen_only = 1;
+ if (p2p_listen(p2p, p2p->ext_listen_period) < 0) {
+ p2p_dbg(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)) {
+ p2p_dbg(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) {
+ p2p_dbg(p2p, "Disabling Extended Listen Timing");
+ p2p->ext_listen_period = 0;
+ p2p->ext_listen_interval = 0;
+ return 0;
+ }
+
+ p2p_dbg(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) {
+ p2p_parse_free(&msg);
+ return;
+ }
+
+ p2p_dbg(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) {
+ p2p_parse_free(&msg);
+ return;
+ }
+
+ p2p_dbg(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) {
+ p2p_dbg(p2p, "Managed P2P Device operations enabled");
+ p2p->dev_capab |= P2P_DEV_CAPAB_INFRA_MANAGED;
+ } else {
+ p2p_dbg(p2p, "Managed P2P Device operations disabled");
+ p2p->dev_capab &= ~P2P_DEV_CAPAB_INFRA_MANAGED;
+ }
+}
+
+
+int p2p_config_get_random_social(struct p2p_config *p2p, u8 *op_class,
+ u8 *op_channel,
+ struct wpa_freq_range_list *avoid_list,
+ struct wpa_freq_range_list *disallow_list)
+{
+ return p2p_channel_random_social(&p2p->channels, op_class, op_channel,
+ avoid_list, disallow_list);
+}
+
+
+int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel,
+ u8 forced)
+{
+ if (p2p_channel_to_freq(reg_class, channel) < 0)
+ return -1;
+
+ /*
+ * Listen channel was set in configuration or set by control interface;
+ * cannot override it.
+ */
+ if (p2p->cfg->channel_forced && forced == 0) {
+ p2p_dbg(p2p,
+ "Listen channel was previously configured - do not override based on optimization");
+ return -1;
+ }
+
+ p2p_dbg(p2p, "Set Listen channel: reg_class %u channel %u",
+ reg_class, channel);
+
+ if (p2p->state == P2P_IDLE) {
+ p2p->cfg->reg_class = reg_class;
+ p2p->cfg->channel = channel;
+ p2p->cfg->channel_forced = forced;
+ } else {
+ p2p_dbg(p2p, "Defer setting listen channel");
+ p2p->pending_reg_class = reg_class;
+ p2p->pending_channel = channel;
+ p2p->pending_channel_forced = forced;
+ }
+
+ return 0;
+}
+
+
+u8 p2p_get_listen_channel(struct p2p_data *p2p)
+{
+ return p2p->cfg->channel;
+}
+
+
+int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len)
+{
+ p2p_dbg(p2p, "New SSID postfix: %s", wpa_ssid_txt(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_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
+ int cfg_op_channel)
+{
+ if (p2p_channel_to_freq(op_reg_class, op_channel) < 0)
+ return -1;
+
+ p2p_dbg(p2p, "Set Operating channel: reg_class %u channel %u",
+ op_reg_class, op_channel);
+ p2p->cfg->op_reg_class = op_reg_class;
+ p2p->cfg->op_channel = op_channel;
+ p2p->cfg->cfg_op_channel = cfg_op_channel;
+ return 0;
+}
+
+
+int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
+ const struct p2p_channel *pref_chan)
+{
+ struct p2p_channel *n;
+
+ if (pref_chan) {
+ n = os_memdup(pref_chan,
+ num_pref_chan * sizeof(struct p2p_channel));
+ if (n == NULL)
+ return -1;
+ } else
+ n = NULL;
+
+ os_free(p2p->cfg->pref_chan);
+ p2p->cfg->pref_chan = n;
+ p2p->cfg->num_pref_chan = num_pref_chan;
+
+ return 0;
+}
+
+
+int p2p_set_no_go_freq(struct p2p_data *p2p,
+ const struct wpa_freq_range_list *list)
+{
+ struct wpa_freq_range *tmp;
+
+ if (list == NULL || list->num == 0) {
+ os_free(p2p->no_go_freq.range);
+ p2p->no_go_freq.range = NULL;
+ p2p->no_go_freq.num = 0;
+ return 0;
+ }
+
+ tmp = os_calloc(list->num, sizeof(struct wpa_freq_range));
+ if (tmp == NULL)
+ return -1;
+ os_memcpy(tmp, list->range, list->num * sizeof(struct wpa_freq_range));
+ os_free(p2p->no_go_freq.range);
+ p2p->no_go_freq.range = tmp;
+ p2p->no_go_freq.num = list->num;
+ p2p_dbg(p2p, "Updated no GO chan list");
+
+ 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))
+ p2p_dbg(p2p, "Disable peer filter");
+ else
+ p2p_dbg(p2p, "Enable peer filter for " MACSTR,
+ MAC2STR(p2p->peer_filter));
+}
+
+
+void p2p_set_cross_connect(struct p2p_data *p2p, int enabled)
+{
+ p2p_dbg(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)
+{
+ p2p_dbg(p2p, "Intra BSS distribution %s",
+ enabled ? "enabled" : "disabled");
+ p2p->cfg->p2p_intra_bss = enabled;
+}
+
+
+void p2p_update_channel_list(struct p2p_data *p2p,
+ const struct p2p_channels *chan,
+ const struct p2p_channels *cli_chan)
+{
+ p2p_dbg(p2p, "Update channel list");
+ os_memcpy(&p2p->cfg->channels, chan, sizeof(struct p2p_channels));
+ p2p_channels_dump(p2p, "channels", &p2p->cfg->channels);
+ os_memcpy(&p2p->cfg->cli_channels, cli_chan,
+ sizeof(struct p2p_channels));
+ p2p_channels_dump(p2p, "cli_channels", &p2p->cfg->cli_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)
+{
+ int res, scheduled;
+
+ res = p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, dst, src, bssid,
+ buf, len, wait_time, &scheduled);
+ if (res == 0 && scheduled && p2p->in_listen && freq > 0 &&
+ p2p->drv_in_listen > 0 &&
+ (unsigned int) p2p->drv_in_listen != freq) {
+ p2p_dbg(p2p,
+ "Stop listen on %d MHz to allow a frame to be sent immediately on %d MHz",
+ p2p->drv_in_listen, freq);
+ p2p_stop_listen_for_freq(p2p, freq);
+ }
+ return res;
+}
+
+
+void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
+ int freq_overall)
+{
+ p2p_dbg(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;
+}
+
+
+void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq)
+{
+ p2p_dbg(p2p, "Own frequency preference: %d MHz", freq);
+ p2p->own_freq_preference = freq;
+}
+
+
+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 || &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 || &dev->list == &p2p->devices)
+ return NULL;
+ }
+ }
+
+ return &dev->info;
+}
+
+
+int p2p_in_progress(struct p2p_data *p2p)
+{
+ if (p2p == NULL)
+ return 0;
+ if (p2p->state == P2P_SEARCH)
+ return 2;
+ return p2p->state != P2P_IDLE && p2p->state != P2P_PROVISIONING;
+}
+
+
+void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout,
+ u8 client_timeout)
+{
+ if (p2p) {
+ p2p->go_timeout = go_timeout;
+ p2p->client_timeout = client_timeout;
+ }
+}
+
+
+#ifdef CONFIG_WIFI_DISPLAY
+
+static void p2p_update_wfd_ie_groups(struct p2p_data *p2p)
+{
+ size_t g;
+ struct p2p_group *group;
+
+ for (g = 0; g < p2p->num_groups; g++) {
+ group = p2p->groups[g];
+ p2p_group_force_beacon_update_ies(group);
+ }
+}
+
+
+int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie)
+{
+ wpabuf_free(p2p->wfd_ie_beacon);
+ p2p->wfd_ie_beacon = ie;
+ p2p_update_wfd_ie_groups(p2p);
+ return 0;
+}
+
+
+int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie)
+{
+ wpabuf_free(p2p->wfd_ie_probe_req);
+ p2p->wfd_ie_probe_req = ie;
+ return 0;
+}
+
+
+int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie)
+{
+ wpabuf_free(p2p->wfd_ie_probe_resp);
+ p2p->wfd_ie_probe_resp = ie;
+ p2p_update_wfd_ie_groups(p2p);
+ return 0;
+}
+
+
+int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie)
+{
+ wpabuf_free(p2p->wfd_ie_assoc_req);
+ p2p->wfd_ie_assoc_req = ie;
+ return 0;
+}
+
+
+int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie)
+{
+ wpabuf_free(p2p->wfd_ie_invitation);
+ p2p->wfd_ie_invitation = ie;
+ return 0;
+}
+
+
+int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie)
+{
+ wpabuf_free(p2p->wfd_ie_prov_disc_req);
+ p2p->wfd_ie_prov_disc_req = ie;
+ return 0;
+}
+
+
+int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie)
+{
+ wpabuf_free(p2p->wfd_ie_prov_disc_resp);
+ p2p->wfd_ie_prov_disc_resp = ie;
+ return 0;
+}
+
+
+int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie)
+{
+ wpabuf_free(p2p->wfd_ie_go_neg);
+ p2p->wfd_ie_go_neg = ie;
+ return 0;
+}
+
+
+int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem)
+{
+ wpabuf_free(p2p->wfd_dev_info);
+ if (elem) {
+ p2p->wfd_dev_info = wpabuf_dup(elem);
+ if (p2p->wfd_dev_info == NULL)
+ return -1;
+ } else
+ p2p->wfd_dev_info = NULL;
+
+ return 0;
+}
+
+
+int p2p_set_wfd_r2_dev_info(struct p2p_data *p2p, const struct wpabuf *elem)
+{
+ wpabuf_free(p2p->wfd_r2_dev_info);
+ if (elem) {
+ p2p->wfd_r2_dev_info = wpabuf_dup(elem);
+ if (p2p->wfd_r2_dev_info == NULL)
+ return -1;
+ } else
+ p2p->wfd_r2_dev_info = NULL;
+
+ return 0;
+}
+
+
+int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem)
+{
+ wpabuf_free(p2p->wfd_assoc_bssid);
+ if (elem) {
+ p2p->wfd_assoc_bssid = wpabuf_dup(elem);
+ if (p2p->wfd_assoc_bssid == NULL)
+ return -1;
+ } else
+ p2p->wfd_assoc_bssid = NULL;
+
+ return 0;
+}
+
+
+int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p,
+ const struct wpabuf *elem)
+{
+ wpabuf_free(p2p->wfd_coupled_sink_info);
+ if (elem) {
+ p2p->wfd_coupled_sink_info = wpabuf_dup(elem);
+ if (p2p->wfd_coupled_sink_info == NULL)
+ return -1;
+ } else
+ p2p->wfd_coupled_sink_info = NULL;
+
+ return 0;
+}
+
+#endif /* CONFIG_WIFI_DISPLAY */
+
+
+int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int,
+ int max_disc_tu)
+{
+ if (min_disc_int > max_disc_int || min_disc_int < 0 || max_disc_int < 0)
+ return -1;
+
+ p2p->min_disc_int = min_disc_int;
+ p2p->max_disc_int = max_disc_int;
+ p2p->max_disc_tu = max_disc_tu;
+ p2p_dbg(p2p, "Set discoverable interval: min=%d max=%d max_tu=%d",
+ min_disc_int, max_disc_int, max_disc_tu);
+
+ return 0;
+}
+
+
+void p2p_dbg(struct p2p_data *p2p, const char *fmt, ...)
+{
+ va_list ap;
+ char buf[500];
+
+ if (!p2p->cfg->debug_print)
+ return;
+
+ va_start(ap, fmt);
+ vsnprintf(buf, sizeof(buf), fmt, ap);
+ buf[sizeof(buf) - 1] = '\0';
+ va_end(ap);
+ p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_DEBUG, buf);
+}
+
+
+void p2p_info(struct p2p_data *p2p, const char *fmt, ...)
+{
+ va_list ap;
+ char buf[500];
+
+ if (!p2p->cfg->debug_print)
+ return;
+
+ va_start(ap, fmt);
+ vsnprintf(buf, sizeof(buf), fmt, ap);
+ buf[sizeof(buf) - 1] = '\0';
+ va_end(ap);
+ p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_INFO, buf);
+}
+
+
+void p2p_err(struct p2p_data *p2p, const char *fmt, ...)
+{
+ va_list ap;
+ char buf[500];
+
+ if (!p2p->cfg->debug_print)
+ return;
+
+ va_start(ap, fmt);
+ vsnprintf(buf, sizeof(buf), fmt, ap);
+ buf[sizeof(buf) - 1] = '\0';
+ va_end(ap);
+ p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_ERROR, buf);
+}
+
+
+void p2p_loop_on_known_peers(struct p2p_data *p2p,
+ void (*peer_callback)(struct p2p_peer_info *peer,
+ void *user_data),
+ void *user_data)
+{
+ struct p2p_device *dev, *n;
+
+ dl_list_for_each_safe(dev, n, &p2p->devices, struct p2p_device, list) {
+ peer_callback(&dev->info, user_data);
+ }
+}
+
+
+#ifdef CONFIG_WPS_NFC
+
+static struct wpabuf * p2p_build_nfc_handover(struct p2p_data *p2p,
+ int client_freq,
+ const u8 *go_dev_addr,
+ const u8 *ssid, size_t ssid_len)
+{
+ struct wpabuf *buf;
+ u8 op_class, channel;
+ enum p2p_role_indication role = P2P_DEVICE_NOT_IN_GROUP;
+
+ buf = wpabuf_alloc(1000);
+ if (buf == NULL)
+ return NULL;
+
+ op_class = p2p->cfg->reg_class;
+ channel = p2p->cfg->channel;
+
+ p2p_buf_add_capability(buf, p2p->dev_capab &
+ ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
+ p2p_buf_add_device_info(buf, p2p, NULL);
+
+ if (p2p->num_groups > 0) {
+ int freq = p2p_group_get_freq(p2p->groups[0]);
+ role = P2P_GO_IN_A_GROUP;
+ if (p2p_freq_to_channel(freq, &op_class, &channel) < 0) {
+ p2p_dbg(p2p,
+ "Unknown GO operating frequency %d MHz for NFC handover",
+ freq);
+ wpabuf_free(buf);
+ return NULL;
+ }
+ } else if (client_freq > 0) {
+ role = P2P_CLIENT_IN_A_GROUP;
+ if (p2p_freq_to_channel(client_freq, &op_class, &channel) < 0) {
+ p2p_dbg(p2p,
+ "Unknown client operating frequency %d MHz for NFC handover",
+ client_freq);
+ wpabuf_free(buf);
+ return NULL;
+ }
+ }
+
+ p2p_buf_add_oob_go_neg_channel(buf, p2p->cfg->country, op_class,
+ channel, role);
+
+ if (p2p->num_groups > 0) {
+ /* Limit number of clients to avoid very long message */
+ p2p_buf_add_group_info(p2p->groups[0], buf, 5);
+ p2p_group_buf_add_id(p2p->groups[0], buf);
+ } else if (client_freq > 0 &&
+ go_dev_addr && !is_zero_ether_addr(go_dev_addr) &&
+ ssid && ssid_len > 0) {
+ /*
+ * Add the optional P2P Group ID to indicate in which group this
+ * device is a P2P Client.
+ */
+ p2p_buf_add_group_id(buf, go_dev_addr, ssid, ssid_len);
+ }
+
+ return buf;
+}
+
+
+struct wpabuf * p2p_build_nfc_handover_req(struct p2p_data *p2p,
+ int client_freq,
+ const u8 *go_dev_addr,
+ const u8 *ssid, size_t ssid_len)
+{
+ return p2p_build_nfc_handover(p2p, client_freq, go_dev_addr, ssid,
+ ssid_len);
+}
+
+
+struct wpabuf * p2p_build_nfc_handover_sel(struct p2p_data *p2p,
+ int client_freq,
+ const u8 *go_dev_addr,
+ const u8 *ssid, size_t ssid_len)
+{
+ return p2p_build_nfc_handover(p2p, client_freq, go_dev_addr, ssid,
+ ssid_len);
+}
+
+
+int p2p_process_nfc_connection_handover(struct p2p_data *p2p,
+ struct p2p_nfc_params *params)
+{
+ struct p2p_message msg;
+ struct p2p_device *dev;
+ const u8 *p2p_dev_addr;
+ int freq;
+ enum p2p_role_indication role;
+
+ params->next_step = NO_ACTION;
+
+ if (p2p_parse_ies_separate(params->wsc_attr, params->wsc_len,
+ params->p2p_attr, params->p2p_len, &msg)) {
+ p2p_dbg(p2p, "Failed to parse WSC/P2P attributes from NFC");
+ 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 {
+ p2p_dbg(p2p, "Ignore scan data without P2P Device Info or P2P Device Id");
+ p2p_parse_free(&msg);
+ return -1;
+ }
+
+ if (msg.oob_dev_password) {
+ os_memcpy(params->oob_dev_pw, msg.oob_dev_password,
+ msg.oob_dev_password_len);
+ params->oob_dev_pw_len = msg.oob_dev_password_len;
+ }
+
+ dev = p2p_create_device(p2p, p2p_dev_addr);
+ if (dev == NULL) {
+ p2p_parse_free(&msg);
+ return -1;
+ }
+
+ params->peer = &dev->info;
+
+ os_get_reltime(&dev->last_seen);
+ dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
+ p2p_copy_wps_info(p2p, dev, 0, &msg);
+
+ if (!msg.oob_go_neg_channel) {
+ p2p_dbg(p2p, "OOB GO Negotiation Channel attribute not included");
+ p2p_parse_free(&msg);
+ return -1;
+ }
+
+ if (msg.oob_go_neg_channel[3] == 0 &&
+ msg.oob_go_neg_channel[4] == 0)
+ freq = 0;
+ else
+ freq = p2p_channel_to_freq(msg.oob_go_neg_channel[3],
+ msg.oob_go_neg_channel[4]);
+ if (freq < 0) {
+ p2p_dbg(p2p, "Unknown peer OOB GO Neg channel");
+ p2p_parse_free(&msg);
+ return -1;
+ }
+ role = msg.oob_go_neg_channel[5];
+
+ if (role == P2P_GO_IN_A_GROUP) {
+ p2p_dbg(p2p, "Peer OOB GO operating channel: %u MHz", freq);
+ params->go_freq = freq;
+ } else if (role == P2P_CLIENT_IN_A_GROUP) {
+ p2p_dbg(p2p, "Peer (client) OOB GO operating channel: %u MHz",
+ freq);
+ params->go_freq = freq;
+ } else
+ p2p_dbg(p2p, "Peer OOB GO Neg channel: %u MHz", freq);
+ dev->oob_go_neg_freq = freq;
+
+ if (!params->sel && role != P2P_GO_IN_A_GROUP) {
+ freq = p2p_channel_to_freq(p2p->cfg->reg_class,
+ p2p->cfg->channel);
+ if (freq < 0) {
+ p2p_dbg(p2p, "Own listen channel not known");
+ p2p_parse_free(&msg);
+ return -1;
+ }
+ p2p_dbg(p2p, "Use own Listen channel as OOB GO Neg channel: %u MHz", freq);
+ dev->oob_go_neg_freq = freq;
+ }
+
+ if (msg.group_id) {
+ os_memcpy(params->go_dev_addr, msg.group_id, ETH_ALEN);
+ params->go_ssid_len = msg.group_id_len - ETH_ALEN;
+ os_memcpy(params->go_ssid, msg.group_id + ETH_ALEN,
+ params->go_ssid_len);
+ }
+
+ if (dev->flags & P2P_DEV_USER_REJECTED) {
+ p2p_dbg(p2p, "Do not report rejected device");
+ p2p_parse_free(&msg);
+ return 0;
+ }
+
+ if (!(dev->flags & P2P_DEV_REPORTED)) {
+ p2p->cfg->dev_found(p2p->cfg->cb_ctx, p2p_dev_addr, &dev->info,
+ !(dev->flags & P2P_DEV_REPORTED_ONCE));
+ dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
+ }
+ p2p_parse_free(&msg);
+
+ if (role == P2P_GO_IN_A_GROUP && p2p->num_groups > 0)
+ params->next_step = BOTH_GO;
+ else if (role == P2P_GO_IN_A_GROUP)
+ params->next_step = JOIN_GROUP;
+ else if (role == P2P_CLIENT_IN_A_GROUP) {
+ dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
+ params->next_step = PEER_CLIENT;
+ } else if (p2p->num_groups > 0)
+ params->next_step = AUTH_JOIN;
+ else if (params->sel)
+ params->next_step = INIT_GO_NEG;
+ else
+ params->next_step = RESP_GO_NEG;
+
+ return 0;
+}
+
+
+void p2p_set_authorized_oob_dev_pw_id(struct p2p_data *p2p, u16 dev_pw_id,
+ int go_intent,
+ const u8 *own_interface_addr)
+{
+
+ p2p->authorized_oob_dev_pw_id = dev_pw_id;
+ if (dev_pw_id == 0) {
+ p2p_dbg(p2p, "NFC OOB Password unauthorized for static handover");
+ return;
+ }
+
+ p2p_dbg(p2p, "NFC OOB Password (id=%u) authorized for static handover",
+ dev_pw_id);
+
+ p2p->go_intent = go_intent;
+ os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
+}
+
+#endif /* CONFIG_WPS_NFC */
+
+
+int p2p_set_passphrase_len(struct p2p_data *p2p, unsigned int len)
+{
+ if (len < 8 || len > 63)
+ return -1;
+ p2p->cfg->passphrase_len = len;
+ return 0;
+}
+
+
+void p2p_set_vendor_elems(struct p2p_data *p2p, struct wpabuf **vendor_elem)
+{
+ p2p->vendor_elem = vendor_elem;
+}
+
+
+void p2p_go_neg_wait_timeout(void *eloop_ctx, void *timeout_ctx)
+{
+ struct p2p_data *p2p = eloop_ctx;
+
+ p2p_dbg(p2p,
+ "Timeout on waiting peer to become ready for GO Negotiation");
+ p2p_go_neg_failed(p2p, -1);
+}
+
+
+void p2p_set_own_pref_freq_list(struct p2p_data *p2p,
+ const struct weighted_pcl *pref_freq_list,
+ unsigned int size)
+{
+ unsigned int i;
+
+ if (size > P2P_MAX_PREF_CHANNELS)
+ size = P2P_MAX_PREF_CHANNELS;
+ p2p->num_pref_freq = size;
+ os_memcpy(p2p->pref_freq_list, pref_freq_list,
+ size * sizeof(struct weighted_pcl));
+ for (i = 0; i < size; i++) {
+ p2p_dbg(p2p, "Own preferred frequency list[%u]=%u MHz",
+ i, p2p->pref_freq_list[i].freq);
+ }
+}
+
+
+void p2p_set_override_pref_op_chan(struct p2p_data *p2p, u8 op_class,
+ u8 chan)
+{
+ p2p->override_pref_op_class = op_class;
+ p2p->override_pref_channel = chan;
+}
+
+
+struct wpabuf * p2p_build_probe_resp_template(struct p2p_data *p2p,
+ unsigned int freq)
+{
+ struct wpabuf *ies, *buf;
+ u8 addr[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
+ int ret;
+
+ ies = p2p_build_probe_resp_ies(p2p, NULL, 0);
+ if (!ies) {
+ wpa_printf(MSG_ERROR,
+ "CTRL: Failed to build Probe Response IEs");
+ return NULL;
+ }
+
+ buf = wpabuf_alloc(200 + wpabuf_len(ies));
+ if (!buf) {
+ wpabuf_free(ies);
+ return NULL;
+ }
+
+ ret = p2p_build_probe_resp_buf(p2p, buf, ies, addr, freq);
+ wpabuf_free(ies);
+ if (ret) {
+ wpabuf_free(buf);
+ return NULL;
+ }
+
+ return buf;
+}
+
+
+bool p2p_is_peer_6ghz_capab(struct p2p_data *p2p, const u8 *addr)
+{
+ struct p2p_device *dev;
+
+ dev = p2p_get_device(p2p, addr);
+ if (!dev)
+ return false;
+
+ return dev->support_6ghz;
+}
+
+
+void p2p_set_6ghz_dev_capab(struct p2p_data *p2p, bool allow_6ghz)
+{
+ p2p->p2p_6ghz_capable = allow_6ghz;
+ p2p->allow_6ghz = allow_6ghz;
+ p2p_dbg(p2p, "Set 6 GHz capability to %d", allow_6ghz);
+
+ if (allow_6ghz)
+ p2p->dev_capab |= P2P_DEV_CAPAB_6GHZ_BAND_CAPABLE;
+ else
+ p2p->dev_capab &= ~P2P_DEV_CAPAB_6GHZ_BAND_CAPABLE;
+}
+
+
+bool is_p2p_6ghz_capable(struct p2p_data *p2p)
+{
+ return p2p->p2p_6ghz_capable;
+}
+
+
+bool p2p_wfd_enabled(struct p2p_data *p2p)
+{
+#ifdef CONFIG_WIFI_DISPLAY
+ return p2p->wfd_ie_probe_req != NULL;
+#else /* CONFIG_WIFI_DISPLAY */
+ return false;
+#endif /* CONFIG_WIFI_DISPLAY */
+}
+
+
+bool p2p_peer_wfd_enabled(struct p2p_data *p2p, const u8 *peer_addr)
+{
+#ifdef CONFIG_WIFI_DISPLAY
+ struct p2p_device *dev;
+
+ dev = p2p_get_device(p2p, peer_addr);
+ return dev && dev->info.wfd_subelems != NULL;
+#else /* CONFIG_WIFI_DISPLAY */
+ return false;
+#endif /* CONFIG_WIFI_DISPLAY */
+}
+
+
+bool is_p2p_allow_6ghz(struct p2p_data *p2p)
+{
+ return p2p->allow_6ghz;
+}
+
+
+void set_p2p_allow_6ghz(struct p2p_data *p2p, bool value)
+{
+ p2p->allow_6ghz = value;
+}