X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fnetifd.git;a=blobdiff_plain;f=interface.c;h=befb194af59f06b33a3e7d6aa3d22693901050d8;hp=37b20cc9c03b13f4eb0a85bc1be494f04dc53be1;hb=d16871c7a55370174eb672edee24feade74cd37e;hpb=41842d3f91733786cb4d2bcdc6ca0c3a1a1c594b

diff --git a/interface.c b/interface.c
index 37b20cc..befb194 100644
--- a/interface.c
+++ b/interface.c
@@ -79,16 +79,28 @@ void interface_add_error(struct interface *iface, const char *subsystem,
 static void
 interface_event(struct interface *iface, enum interface_event ev)
 {
+	struct interface_user *dep, *tmp;
+
+	list_for_each_entry_safe(dep, tmp, &iface->users, list)
+		dep->cb(dep, IFEV_UP);
+
 	interface_queue_event(iface, ev);
 }
 
 static void
-mark_interface_down(struct interface *iface)
+interface_flush_state(struct interface *iface)
 {
+	interface_clear_dns(iface);
 	vlist_flush_all(&iface->proto_addr);
 	vlist_flush_all(&iface->proto_route);
 	if (iface->main_dev.dev)
 		device_release(&iface->main_dev);
+}
+
+static void
+mark_interface_down(struct interface *iface)
+{
+	interface_flush_state(iface);
 	iface->state = IFS_DOWN;
 }
 
@@ -114,10 +126,9 @@ __interface_set_up(struct interface *iface)
 	}
 
 	return 0;
-
 }
 
-static void
+void
 __interface_set_down(struct interface *iface, bool force)
 {
 	interface_clear_errors(iface);
@@ -129,6 +140,8 @@ __interface_set_down(struct interface *iface, bool force)
 	iface->state = IFS_TEARDOWN;
 	interface_event(iface, IFEV_DOWN);
 	interface_proto_event(iface->proto, PROTO_CMD_TEARDOWN, force);
+	if (force)
+		interface_flush_state(iface);
 }
 
 static void
@@ -168,12 +181,28 @@ interface_set_available(struct interface *iface, bool new_state)
 		__interface_set_down(iface, true);
 }
 
+void
+interface_add_user(struct interface_user *dep, struct interface *iface)
+{
+	dep->iface = iface;
+	list_add(&dep->list, &iface->users);
+	if (iface->state == IFS_UP)
+		dep->cb(dep, IFEV_UP);
+}
+
+void
+interface_remove_user(struct interface_user *dep)
+{
+	list_del_init(&dep->list);
+	dep->iface = NULL;
+}
+
 static void
 interface_claim_device(struct interface *iface)
 {
 	struct device *dev;
 
-	if (iface->proto_handler &&
+	if (iface->ifname && iface->proto_handler &&
 		!(iface->proto_handler->flags & PROTO_FLAG_NODEV)) {
 		dev = device_get(iface->ifname, true);
 		if (dev)
@@ -185,10 +214,16 @@ interface_claim_device(struct interface *iface)
 static void
 interface_cleanup(struct interface *iface)
 {
+	struct interface_user *dep, *tmp;
+
+	list_for_each_entry_safe(dep, tmp, &iface->users, list)
+		interface_remove_user(dep);
+
 	interface_clear_dns(iface);
 	interface_clear_errors(iface);
 	if (iface->main_dev.dev)
 		device_remove_user(&iface->main_dev);
+	iface->l3_dev = &iface->main_dev;
 	interface_set_proto_state(iface, NULL);
 }
 
@@ -239,22 +274,31 @@ interface_proto_cb(struct interface_proto_state *state, enum interface_proto_eve
 		if (iface->state != IFS_SETUP)
 			return;
 
+		system_flush_routes();
 		iface->state = IFS_UP;
 		iface->start_time = system_get_rtime();
 		interface_event(iface, IFEV_UP);
 		interface_write_resolv_conf();
+		netifd_log_message(L_NOTICE, "Interface '%s' is now up\n", iface->name);
 		break;
 	case IFPEV_DOWN:
 		if (iface->state == IFS_DOWN)
 			return;
 
+		netifd_log_message(L_NOTICE, "Interface '%s' is now down\n", iface->name);
+		system_flush_routes();
 		mark_interface_down(iface);
 		interface_handle_config_change(iface);
+		if (iface->l3_dev->dev)
+			device_release(iface->l3_dev);
+		if (iface->autostart && iface->available)
+			__interface_set_up(iface);
 		break;
 	case IFPEV_LINK_LOST:
 		if (iface->state != IFS_UP)
 			return;
 
+		netifd_log_message(L_NOTICE, "Interface '%s' has lost the connection\n", iface->name);
 		iface->state = IFS_SETUP;
 		interface_event(iface, IFEV_DOWN);
 		break;
@@ -286,6 +330,7 @@ interface_init(struct interface *iface, const char *name,
 
 	strncpy(iface->name, name, sizeof(iface->name) - 1);
 	INIT_LIST_HEAD(&iface->errors);
+	INIT_LIST_HEAD(&iface->users);
 	INIT_LIST_HEAD(&iface->hotplug_list);
 	INIT_LIST_HEAD(&iface->proto_dns_search);
 	INIT_LIST_HEAD(&iface->proto_dns_servers);
@@ -358,14 +403,15 @@ interface_set_up(struct interface *iface)
 {
 	iface->autostart = true;
 
+	if (iface->state != IFS_DOWN)
+		return 0;
+
+	interface_clear_errors(iface);
 	if (!iface->available) {
 		interface_add_error(iface, "interface", "NO_DEVICE", NULL, 0);
 		return -1;
 	}
 
-	if (iface->state != IFS_DOWN)
-		return 0;
-
 	return __interface_set_up(iface);
 }