base-files: ensure that ipv6 is loaded if interfaces have an ip6addr defined, clean trailing whitespace, bump pkg revision (#5356)

SVN-Revision: 17118

package/base-files/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=base-files
-PKG_RELEASE:=24
+PKG_RELEASE:=25
 
 PKG_FILE_DEPENDS:=$(PLATFORM_DIR)/ $(GENERIC_PLATFORM_DIR)/base-files/
 

package/base-files/files/lib/network/config.sh

@@ -226,6 +226,7 @@ setup_interface() {
 	local vifmac="$4"
 	local proto
 	local macaddr
+	local hasipv6
 
 	[ -n "$config" ] || {
 		config=$(find_config "$iface")
@@ -243,6 +244,14 @@ setup_interface() {
 		sleep 1
 	}
 
+	# Check whether this interface has an IPv6 address
+	# defined and ensure that the kmod is loaded since
+	# ifup could be triggered before modules are loaded.
+	config_get hasipv6 "$config" ip6addr
+	[ -n "$hasipv6" ] && [ ! -d /proc/sys/net/ipv6 ] && {
+		grep -q '^ipv6' /etc/modules.d/* && insmod ipv6
+	}
+
 	# Interface settings
 	config_get mtu "$config" mtu
 	config_get macaddr "$config" macaddr