swconfig: fix backward compatibility

swconfig fails to load uci configuration after the generic switch
identifier changes.

root@OpenWrt:/# uci show network | grep switch
network.@switch[0]=switch
network.@switch[0].name=eth0
network.@switch[0].reset=1
network.@switch[0].enable_vlan=1
network.@switch_vlan[0]=switch_vlan
network.@switch_vlan[0].device=eth0
network.@switch_vlan[0].vlan=1
network.@switch_vlan[0].ports=0t 2 3 4 5
network.@switch_vlan[1]=switch_vlan
network.@switch_vlan[1].device=eth0
network.@switch_vlan[1].vlan=2
network.@switch_vlan[1].ports=0t 1
root@OpenWrt:/# swconfig dev eth0 load /etc/config/network
Failed to apply configuration for switch 'switch0'
root@OpenWrt:/# swconfig dev switch0 load /etc/config/network
Failed to apply configuration for switch 'switch0'

SVN-Revision: 27820

package/swconfig/Makefile

@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=swconfig
-PKG_RELEASE:=8
+PKG_RELEASE:=9
 
 include $(INCLUDE_DIR)/package.mk
 include $(INCLUDE_DIR)/kernel.mk

package/swconfig/src/uci.c

@@ -53,6 +53,12 @@ struct swlib_setting early_settings[] = {
 static struct swlib_setting *settings;
 static struct swlib_setting **head;
 
+static bool swlib_match_name(struct switch_dev *dev, const char *name)
+{
+	return (strcmp(name, dev->dev_name) == 0 ||
+		strcmp(name, dev->alias) == 0);
+}
+
 static int
 swlib_map_settings(struct switch_dev *dev, int type, int port_vlan, struct uci_section *s)
 {
@@ -131,13 +137,13 @@ int swlib_apply_from_uci(struct switch_dev *dev, struct uci_package *p)
 			if (o->type != UCI_TYPE_STRING)
 				continue;
 
-			if (!strcmp(o->v.string, dev->dev_name))
+			if (swlib_match_name(dev, o->v.string))
 				goto found;
 
 			break;
 		}
 
-		if (strcmp(e->name, dev->dev_name) != 0)
+		if (!swlib_match_name(dev, e->name))
 			continue;
 
 		goto found;
@@ -171,7 +177,7 @@ found:
 
 				if (!strcmp(os->name, "device")) {
 					devn = o->v.string;
-					if (strcmp(devn, dev->dev_name) != 0)
+					if (!swlib_match_name(dev, devn))
 						devn = NULL;
 				} else if (!strcmp(os->name, "port")) {
 					port = o->v.string;
@@ -196,7 +202,7 @@ found:
 
 				if (!strcmp(os->name, "device")) {
 					devn = o->v.string;
-					if (strcmp(devn, dev->dev_name) != 0)
+					if (!swlib_match_name(dev, devn))
 						devn = NULL;
 				} else if (!strcmp(os->name, "vlan")) {
 					vlan = o->v.string;