[PATCH] wpa_supplicant: reschedule scan after network change

[David Spinadel]

From: David Spinadel <david.spinadel at intel.com>

Stop sched scan, if running, after any disabling or removing of
a network, and request new scan if needed.

Signed-hostap: David Spinadel <david.spinadel at intel.com>
---
 wpa_supplicant/ctrl_iface.c             |   13 +++++++++++++
 wpa_supplicant/dbus/dbus_new_handlers.c |   13 +++++++++++++
 wpa_supplicant/wpa_supplicant.c         |   12 +++++++++++-
 3 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/wpa_supplicant/ctrl_iface.c b/wpa_supplicant/ctrl_iface.c
index e376c95..5022da9 100644
--- a/wpa_supplicant/ctrl_iface.c
+++ b/wpa_supplicant/ctrl_iface.c
@@ -2216,10 +2216,14 @@ static int wpa_supplicant_ctrl_iface_remove_network(
 {
 	int id;
 	struct wpa_ssid *ssid;
+	int was_disabled;
 
 	/* cmd: "<network id>" or "all" */
 	if (os_strcmp(cmd, "all") == 0) {
 		wpa_printf(MSG_DEBUG, "CTRL_IFACE: REMOVE_NETWORK all");
+		if (wpa_s->sched_scanning)
+			wpa_supplicant_cancel_sched_scan(wpa_s);
+
 		eapol_sm_invalidate_cached_session(wpa_s->eapol);
 		if (wpa_s->current_ssid) {
 #ifdef CONFIG_SME
@@ -2272,12 +2276,21 @@ static int wpa_supplicant_ctrl_iface_remove_network(
 					      WLAN_REASON_DEAUTH_LEAVING);
 	}
 
+	was_disabled = ssid->disabled;
+
 	if (wpa_config_remove_network(wpa_s->conf, id) < 0) {
 		wpa_printf(MSG_DEBUG, "CTRL_IFACE: Not able to remove the "
 			   "network id=%d", id);
 		return -1;
 	}
 
+	if (!was_disabled && wpa_s->sched_scanning) {
+		wpa_printf(MSG_DEBUG,
+			   "Stop ongoing sched_scan to remove network from filters");
+		wpa_supplicant_cancel_sched_scan(wpa_s);
+		wpa_supplicant_req_scan(wpa_s, 0, 0);
+	}
+
 	return 0;
 }
 
diff --git a/wpa_supplicant/dbus/dbus_new_handlers.c b/wpa_supplicant/dbus/dbus_new_handlers.c
index 5e06932..0591a05 100644
--- a/wpa_supplicant/dbus/dbus_new_handlers.c
+++ b/wpa_supplicant/dbus/dbus_new_handlers.c
@@ -1479,6 +1479,7 @@ DBusMessage * wpas_dbus_handler_remove_network(DBusMessage *message,
 	char *iface = NULL, *net_id = NULL;
 	int id;
 	struct wpa_ssid *ssid;
+	int was_disabled;
 
 	dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &op,
 			      DBUS_TYPE_INVALID);
@@ -1505,6 +1506,8 @@ DBusMessage * wpas_dbus_handler_remove_network(DBusMessage *message,
 		goto out;
 	}
 
+	was_disabled = ssid->disabled;
+
 	wpas_notify_network_removed(wpa_s, ssid);
 
 	if (wpa_config_remove_network(wpa_s->conf, id) < 0) {
@@ -1520,6 +1523,13 @@ DBusMessage * wpas_dbus_handler_remove_network(DBusMessage *message,
 	if (ssid == wpa_s->current_ssid)
 		wpa_supplicant_deauthenticate(wpa_s,
 					      WLAN_REASON_DEAUTH_LEAVING);
+	else if (!was_disabled && wpa_s->sched_scanning) {
+		wpa_printf(MSG_DEBUG,
+			   "Stop ongoing sched_scan to remove network from filters");
+		wpa_supplicant_cancel_sched_scan(wpa_s);
+		wpa_supplicant_req_scan(wpa_s, 0, 0);
+	}
+
 
 out:
 	os_free(iface);
@@ -1559,6 +1569,9 @@ static void remove_network(void *arg, struct wpa_ssid *ssid)
 DBusMessage * wpas_dbus_handler_remove_all_networks(
 	DBusMessage *message, struct wpa_supplicant *wpa_s)
 {
+	if (wpa_s->sched_scanning)
+		wpa_supplicant_cancel_sched_scan(wpa_s);
+
 	/* NB: could check for failure and return an error */
 	wpa_config_foreach_network(wpa_s->conf, remove_network, wpa_s);
 	return NULL;
diff --git a/wpa_supplicant/wpa_supplicant.c b/wpa_supplicant/wpa_supplicant.c
index a4243ce..c179dfd 100644
--- a/wpa_supplicant/wpa_supplicant.c
+++ b/wpa_supplicant/wpa_supplicant.c
@@ -1789,6 +1789,9 @@ void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s,
 	int was_disabled;
 
 	if (ssid == NULL) {
+		if (wpa_s->sched_scanning)
+			wpa_supplicant_cancel_sched_scan(wpa_s);
+
 		for (other_ssid = wpa_s->conf->ssid; other_ssid;
 		     other_ssid = other_ssid->next) {
 			was_disabled = other_ssid->disabled;
@@ -1814,8 +1817,15 @@ void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s,
 
 		ssid->disabled = 1;
 
-		if (was_disabled != ssid->disabled)
+		if (was_disabled != ssid->disabled) {
 			wpas_notify_network_enabled_changed(wpa_s, ssid);
+			if (wpa_s->sched_scanning) {
+				wpa_printf(MSG_DEBUG,
+					   "Stop ongoing sched_scan to remove network from filters");
+				wpa_supplicant_cancel_sched_scan(wpa_s);
+				wpa_supplicant_req_scan(wpa_s, 0, 0);
+			}
+		}
 	}
 }
 
-- 
1.7.10.msysgit.1