}
-static void p2p_listen_in_find(struct p2p_data *p2p)
+static void p2p_listen_in_find(struct p2p_data *p2p, int dev_disc)
{
unsigned int r, tu;
int freq;
os_get_random((u8 *) &r, sizeof(r));
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) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Skip listen state "
+ "since duration was 0 TU");
+ p2p_set_timeout(p2p, 0, 0);
+ return;
+ }
p2p->pending_listen_freq = freq;
p2p->pending_listen_sec = 0;
* 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
+ * @age_ms: Age of the information in milliseconds
* @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
* like Provision Discovery Request that contains P2P Capability and P2P Device
* Info attributes.
*/
-int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq, int level,
- const u8 *ies, size_t ies_len, int scan_res)
+int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq,
+ unsigned int age_ms, 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 i;
+ struct os_time time_now, time_tmp_age, entry_ts;
os_memset(&msg, 0, sizeof(msg));
if (p2p_parse_ies(ies, ies_len, &msg)) {
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Do not add peer "
"filter for " MACSTR " due to peer filter",
MAC2STR(p2p_dev_addr));
+ p2p_parse_free(&msg);
return 0;
}
p2p_parse_free(&msg);
return -1;
}
- os_get_time(&dev->last_seen);
+
+ os_get_time(&time_now);
+ time_tmp_age.sec = age_ms / 1000;
+ time_tmp_age.usec = (age_ms % 1000) * 1000;
+ os_time_sub(&time_now, &time_tmp_age, &entry_ts);
+
+ /*
+ * Update the device entry only if the new peer
+ * entry is newer than the one previously stored.
+ */
+ if (dev->last_seen.usec > 0 &&
+ os_time_before(&entry_ts, &dev->last_seen)) {
+ p2p_parse_free(&msg);
+ return -1;
+ }
+
+ os_memcpy(&dev->last_seen, &entry_ts, sizeof(struct os_time));
+
dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
if (os_memcmp(addr, p2p_dev_addr, ETH_ALEN) != 0)
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Stopping find");
eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
p2p_clear_timeout(p2p);
- if (p2p->state == P2P_SEARCH)
+ if (p2p->state == P2P_SEARCH ||
+ p2p->state == P2P_CONTINUE_SEARCH_WHEN_READY ||
+ p2p->state == P2P_SEARCH_WHEN_READY)
wpa_msg(p2p->cfg->msg_ctx, MSG_INFO, P2P_EVENT_FIND_STOPPED);
p2p_set_state(p2p, P2P_IDLE);
p2p_free_req_dev_types(p2p);
}
-static int p2p_prepare_channel(struct p2p_data *p2p, unsigned int force_freq)
+static int p2p_prepare_channel_pref(struct p2p_data *p2p,
+ unsigned int force_freq,
+ unsigned int pref_freq)
{
+ u8 op_class, op_channel;
+ unsigned int freq = force_freq ? force_freq : pref_freq;
+
+ if (p2p_freq_to_channel(p2p->cfg->country, freq,
+ &op_class, &op_channel) < 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "P2P: Unsupported frequency %u MHz", freq);
+ return -1;
+ }
+
+ if (!p2p_channels_includes(&p2p->cfg->channels, op_class, op_channel)) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
+ "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) {
- u8 op_reg_class, op_channel;
- if (p2p_freq_to_channel(p2p->cfg->country, force_freq,
- &op_reg_class, &op_channel) < 0) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Unsupported frequency %u MHz",
- force_freq);
- return -1;
- }
- if (!p2p_channels_includes(&p2p->cfg->channels, op_reg_class,
- op_channel)) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Frequency %u MHz (oper_class %u "
- "channel %u) not allowed for P2P",
- force_freq, op_reg_class, op_channel);
- return -1;
- }
- p2p->op_reg_class = op_reg_class;
- p2p->op_channel = op_channel;
-#ifndef ANDROID_P2P
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
- if(p2p->cfg->p2p_concurrency == P2P_MULTI_CHANNEL_CONCURRENT) {
- /* We we are requesting for a preferred channel. But since
- * are multichannel concurrent, we have to poplulate the
- * p2p_channels with list of channels that we support.
- */
-#ifdef ANDROID_P2P
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "Full channel list");
-#endif
- os_memcpy(&p2p->channels, &p2p->cfg->channels,
- sizeof(struct p2p_channels));
- } else {
-#ifdef ANDROID_P2P
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "Single channel list %d", p2p->op_channel);
-#endif
- 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;
- }
-#endif
} else {
- u8 op_reg_class, op_channel;
-
- if (!p2p->cfg->cfg_op_channel && p2p->best_freq_overall > 0 &&
- p2p_supported_freq(p2p, p2p->best_freq_overall) &&
- p2p_freq_to_channel(p2p->cfg->country,
- p2p->best_freq_overall,
- &op_reg_class, &op_channel) == 0) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Select best overall channel as "
- "operating channel preference");
- p2p->op_reg_class = op_reg_class;
- p2p->op_channel = op_channel;
- } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_5 > 0 &&
- p2p_supported_freq(p2p, p2p->best_freq_5) &&
- p2p_freq_to_channel(p2p->cfg->country,
- p2p->best_freq_5,
- &op_reg_class, &op_channel) ==
- 0) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Select best 5 GHz channel as "
- "operating channel preference");
- p2p->op_reg_class = op_reg_class;
- p2p->op_channel = op_channel;
- } else if (!p2p->cfg->cfg_op_channel &&
- p2p->best_freq_24 > 0 &&
- p2p_supported_freq(p2p, p2p->best_freq_24) &&
- p2p_freq_to_channel(p2p->cfg->country,
- p2p->best_freq_24,
- &op_reg_class, &op_channel) ==
- 0) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Select best 2.4 GHz channel as "
- "operating channel preference");
- p2p->op_reg_class = op_reg_class;
- p2p->op_channel = op_channel;
- } else {
- p2p->op_reg_class = p2p->cfg->op_reg_class;
- p2p->op_channel = p2p->cfg->op_channel;
- }
-
os_memcpy(&p2p->channels, &p2p->cfg->channels,
sizeof(struct p2p_channels));
}
+
+ return 0;
+}
+
+
+static void p2p_prepare_channel_best(struct p2p_data *p2p)
+{
+ u8 op_class, op_channel;
+
+ if (!p2p->cfg->cfg_op_channel && p2p->best_freq_overall > 0 &&
+ p2p_supported_freq(p2p, p2p->best_freq_overall) &&
+ p2p_freq_to_channel(p2p->cfg->country, p2p->best_freq_overall,
+ &op_class, &op_channel) == 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Select best "
+ "overall channel as operating channel preference");
+ p2p->op_reg_class = op_class;
+ p2p->op_channel = op_channel;
+ } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_5 > 0 &&
+ p2p_supported_freq(p2p, p2p->best_freq_5) &&
+ p2p_freq_to_channel(p2p->cfg->country, p2p->best_freq_5,
+ &op_class, &op_channel) == 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Select best 5 GHz "
+ "channel as operating channel preference");
+ p2p->op_reg_class = op_class;
+ p2p->op_channel = op_channel;
+ } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_24 > 0 &&
+ p2p_supported_freq(p2p, p2p->best_freq_24) &&
+ p2p_freq_to_channel(p2p->cfg->country, p2p->best_freq_24,
+ &op_class, &op_channel) == 0) {
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Select best 2.4 "
+ "GHz channel as operating channel preference");
+ p2p->op_reg_class = op_class;
+ p2p->op_channel = op_channel;
+ } else {
+ p2p->op_reg_class = p2p->cfg->op_reg_class;
+ p2p->op_channel = p2p->cfg->op_channel;
+ }
+
+ os_memcpy(&p2p->channels, &p2p->cfg->channels,
+ sizeof(struct p2p_channels));
+}
+
+
+/**
+ * p2p_prepare_channel - Select operating channel for GO Negotiation
+ * @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
+ * 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. The selected channel
+ * may be further optimized in p2p_reselect_channel() once the peer information
+ * is available.
+ */
+static int p2p_prepare_channel(struct p2p_data *p2p, struct p2p_device *dev,
+ unsigned int force_freq, unsigned int pref_freq)
+{
+ if (force_freq || pref_freq) {
+ if (p2p_prepare_channel_pref(p2p, force_freq, pref_freq) < 0)
+ return -1;
+ } else {
+ p2p_prepare_channel_best(p2p);
+ }
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
"P2P: Own preference for operation channel: "
"Operating Class %u Channel %u%s",
p2p->op_reg_class, p2p->op_channel,
force_freq ? " (forced)" : "");
+ if (force_freq)
+ dev->flags |= P2P_DEV_FORCE_FREQ;
+ else
+ dev->flags &= ~P2P_DEV_FORCE_FREQ;
+
return 0;
}
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)
+ int pd_before_go_neg, unsigned int pref_freq)
{
struct p2p_device *dev;
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
"P2P: Request to start group negotiation - peer=" MACSTR
" GO Intent=%d Intended Interface Address=" MACSTR
- " wps_method=%d persistent_group=%d pd_before_go_neg=%d force_freq %d",
+ " wps_method=%d persistent_group=%d pd_before_go_neg=%d",
MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
- wps_method, persistent_group, pd_before_go_neg, force_freq);
-
- if (p2p_prepare_channel(p2p, force_freq) < 0)
- return -1;
+ wps_method, persistent_group, pd_before_go_neg);
dev = p2p_get_device(p2p, peer_addr);
if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
return -1;
}
+ if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq) < 0)
+ return -1;
+
if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
if (!(dev->info.dev_capab &
P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
if (pd_before_go_neg)
dev->flags |= P2P_DEV_PD_BEFORE_GO_NEG;
- else
+ else {
dev->flags &= ~P2P_DEV_PD_BEFORE_GO_NEG;
+ /*
+ * Assign dialog token here to use the same value in each
+ * retry within the same GO Negotiation exchange.
+ */
+ dev->dialog_token++;
+ if (dev->dialog_token == 0)
+ dev->dialog_token = 1;
+ }
dev->connect_reqs = 0;
dev->go_neg_req_sent = 0;
dev->go_state = UNKNOWN_GO;
dev->wps_method = wps_method;
dev->status = P2P_SC_SUCCESS;
- if (force_freq)
- dev->flags |= P2P_DEV_FORCE_FREQ;
- else
- dev->flags &= ~P2P_DEV_FORCE_FREQ;
-
if (p2p->p2p_scan_running) {
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
"P2P: p2p_scan running - delay connect send");
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)
+ const u8 *force_ssid, size_t force_ssid_len,
+ unsigned int pref_freq)
{
struct p2p_device *dev;
MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
wps_method, persistent_group);
- if (p2p_prepare_channel(p2p, force_freq) < 0)
- return -1;
-
dev = p2p_get_device(p2p, peer_addr);
if (dev == NULL) {
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
return -1;
}
+ if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq) < 0)
+ return -1;
+
p2p->ssid_set = 0;
if (force_ssid) {
wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
dev->wps_method = wps_method;
dev->status = P2P_SC_SUCCESS;
- if (force_freq)
- dev->flags |= P2P_DEV_FORCE_FREQ;
- else
- dev->flags &= ~P2P_DEV_FORCE_FREQ;
-
return 0;
}
p2p->min_disc_int = 1;
#endif
p2p->max_disc_int = 3;
+ p2p->max_disc_tu = -1;
os_get_random(&p2p->next_tie_breaker, 1);
p2p->next_tie_breaker &= 0x01;
}
}
- p2p_listen_in_find(p2p);
+ p2p_listen_in_find(p2p, 1);
}
/*
* Retry the prov disc req attempt only for the peer that the user had
- * requested for and provided a join has not been initiated on it
- * in the meantime.
+ * requested.
*/
dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
continue;
if (!dev->req_config_methods)
continue;
- if (dev->flags & P2P_DEV_PD_FOR_JOIN)
- continue;
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "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, 0, 0);
+ p2p_send_prov_disc_req(p2p, dev,
+ dev->flags & P2P_DEV_PD_FOR_JOIN, 0);
return;
}
}
p2p_continue_find(p2p);
else if (p2p->user_initiated_pd) {
p2p->pending_action_state = P2P_PENDING_PD;
+#ifdef ANDROID_P2P
+ p2p_set_timeout(p2p, 0, 350000);
+#else
p2p_set_timeout(p2p, 0, 300000);
+#endif
}
return;
}
/* Wait for response from the peer */
if (p2p->state == P2P_SEARCH)
p2p_set_state(p2p, P2P_PD_DURING_FIND);
+#ifdef ANDROID_P2P
+ p2p_set_timeout(p2p, 0, 350000);
+#else
p2p_set_timeout(p2p, 0, 200000);
+#endif
}
int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
- int level, const u8 *ies, size_t ies_len)
+ unsigned int age, int level, const u8 *ies,
+ size_t ies_len)
{
- p2p_add_device(p2p, bssid, freq, level, ies, ies_len, 1);
+ p2p_add_device(p2p, bssid, freq, age, level, ies, ies_len, 1);
return 0;
}
* channel.
*/
p2p_set_state(p2p, P2P_CONNECT);
+#ifdef ANDROID_P2P
+ p2p_set_timeout(p2p, 0, 350000);
+#else
p2p_set_timeout(p2p, 0, success ? 200000 : 100000);
+#endif
}
return;
}
p2p_set_state(p2p, P2P_CONNECT);
+#ifdef ANDROID_P2P
+ p2p_set_timeout(p2p, 0, 350000);
+#else
p2p_set_timeout(p2p, 0, 250000);
+#endif
}
return;
}
p2p_set_state(p2p, P2P_CONNECT_LISTEN);
- p2p_listen_in_find(p2p);
+ p2p_listen_in_find(p2p, 0);
}
"P2P: Go to Listen state while waiting for the peer to become "
"ready for GO Negotiation");
p2p_set_state(p2p, P2P_WAIT_PEER_CONNECT);
- p2p_listen_in_find(p2p);
+ p2p_listen_in_find(p2p, 0);
}
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->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);
p2p_reset_pending_pd(p2p);
}
p2p_set_timeout(p2p, 0, 100000);
return;
}
- p2p_listen_in_find(p2p);
+ p2p_listen_in_find(p2p, 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;
+ wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Set discoverable interval: "
+ "min=%d max=%d max_tu=%d", min_disc_int, max_disc_int,
+ max_disc_tu);
+
+ return 0;
+}
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