diff options
Diffstat (limited to 'wpa_supplicant')
-rw-r--r-- | wpa_supplicant/p2p_supplicant.c | 47 | ||||
-rw-r--r-- | wpa_supplicant/p2p_supplicant.h | 4 | ||||
-rw-r--r-- | wpa_supplicant/wpa_supplicant.c | 24 | ||||
-rw-r--r-- | wpa_supplicant/wpa_supplicant_i.h | 5 |
4 files changed, 79 insertions, 1 deletions
diff --git a/wpa_supplicant/p2p_supplicant.c b/wpa_supplicant/p2p_supplicant.c index 0aac7e1..1d7f28d 100644 --- a/wpa_supplicant/p2p_supplicant.c +++ b/wpa_supplicant/p2p_supplicant.c @@ -266,6 +266,11 @@ static void wpas_p2p_group_delete(struct wpa_supplicant *wpa_s, int silent) case P2P_GROUP_REMOVAL_GO_ENDING_SESSION: reason = " reason=GO_ENDING_SESSION"; break; +#ifdef ANDROID_P2P + case P2P_GROUP_REMOVAL_FREQ_CONFLICT: + reason = " reason=FREQ_CONFLICT"; + break; +#endif default: reason = ""; break; @@ -4896,6 +4901,48 @@ void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s, wpas_p2p_add_persistent_group_client(wpa_s, addr); } +#ifdef ANDROID_P2P +int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq) +{ + struct wpa_supplicant *iface = NULL; + struct p2p_data *p2p = wpa_s->global->p2p; + + for (iface = wpa_s->global->ifaces; iface; iface = iface->next) { + if((iface->p2p_group_interface) && (iface->current_ssid) && + (iface->current_ssid->frequency != freq)) { + + if (iface->p2p_group_interface == P2P_GROUP_INTERFACE_GO) { + /* Try to see whether we can move the GO. If it + * is not possible, remove the GO interface + */ + if(wpa_drv_switch_channel(iface, freq) == 0) { + wpa_printf(MSG_ERROR, "P2P: GO Moved to freq(%d)", freq); + iface->current_ssid->frequency = freq; + continue; + } + } + + /* If GO cannot be moved or if the conflicting interface is a + * P2P Client, remove the interface depending up on the connection + * priority */ + if(!wpas_is_p2p_prioritized(wpa_s)) { + /* STA connection has priority over existing + * P2P connection. So remove the interface */ + wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to Single channel" + "concurrent mode frequency conflict"); + iface->removal_reason = P2P_GROUP_REMOVAL_FREQ_CONFLICT; + wpas_p2p_group_delete(iface, 0); + } else { + /* Existing connection has the priority. Disable the newly + * selected network and let the application know about it. + */ + return -1; + } + } + } + return 0; +} +#endif static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s, int group_added) diff --git a/wpa_supplicant/p2p_supplicant.h b/wpa_supplicant/p2p_supplicant.h index e2fe259..24fb81e 100644 --- a/wpa_supplicant/p2p_supplicant.h +++ b/wpa_supplicant/p2p_supplicant.h @@ -26,6 +26,10 @@ void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s, unsigned int freq, unsigned int duration); void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s, unsigned int freq); +#ifdef ANDROID_P2P +int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, + int freq); +#endif int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname); int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group, int freq); diff --git a/wpa_supplicant/wpa_supplicant.c b/wpa_supplicant/wpa_supplicant.c index 46b7296..6494097 100644 --- a/wpa_supplicant/wpa_supplicant.c +++ b/wpa_supplicant/wpa_supplicant.c @@ -1162,6 +1162,9 @@ void wpa_supplicant_associate(struct wpa_supplicant *wpa_s, ibss_rsn_deinit(wpa_s->ibss_rsn); wpa_s->ibss_rsn = NULL; #endif /* CONFIG_IBSS_RSN */ +#ifdef ANDROID_P2P + int freq = 0; +#endif if (ssid->mode == WPAS_MODE_AP || ssid->mode == WPAS_MODE_P2P_GO || ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) { @@ -1490,6 +1493,27 @@ void wpa_supplicant_associate(struct wpa_supplicant *wpa_s, wpa_supplicant_apply_ht_overrides(wpa_s, ssid, ¶ms); #endif /* CONFIG_HT_OVERRIDES */ +#ifdef ANDROID_P2P + /* If multichannel concurrency is not supported, check for any frequency + * conflict and take appropriate action. + */ + if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT) && + ((freq = wpa_drv_shared_freq(wpa_s)) > 0) && (freq != params.freq)) { + wpa_printf(MSG_DEBUG, + "Shared interface with conflicting frequency found (%d != %d)", + freq, params.freq); + if (wpas_p2p_handle_frequency_conflicts(wpa_s, params.freq) < 0) { + /* Handling conflicts failed. Disable the current connect req and + * notify the userspace to take appropriate action */ + wpa_printf(MSG_DEBUG, "proiritize is not set. Notifying user space to handle the case"); + wpa_supplicant_disable_network(wpa_s, ssid); + wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_FREQ_CONFLICT + " id=%d", ssid->id); + os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); + return; + } + } +#endif ret = wpa_drv_associate(wpa_s, ¶ms); if (ret < 0) { wpa_msg(wpa_s, MSG_INFO, "Association request to the driver " diff --git a/wpa_supplicant/wpa_supplicant_i.h b/wpa_supplicant/wpa_supplicant_i.h index 5132ca3..9968386 100644 --- a/wpa_supplicant/wpa_supplicant_i.h +++ b/wpa_supplicant/wpa_supplicant_i.h @@ -529,7 +529,10 @@ struct wpa_supplicant { P2P_GROUP_REMOVAL_REQUESTED, P2P_GROUP_REMOVAL_IDLE_TIMEOUT, P2P_GROUP_REMOVAL_UNAVAILABLE, - P2P_GROUP_REMOVAL_GO_ENDING_SESSION + P2P_GROUP_REMOVAL_GO_ENDING_SESSION, +#ifdef ANDROID_P2P + P2P_GROUP_REMOVAL_FREQ_CONFLICT +#endif } removal_reason; unsigned int p2p_cb_on_scan_complete:1; |