ds-lite: add support for fqdn peeraddrs

Signed-off-by: Steven Barth <steven@midlink.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@45322 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/network/ipv6/ds-lite/Makefile

@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ds-lite
-PKG_VERSION:=4
+PKG_VERSION:=5
 PKG_RELEASE:=1
 PKG_LICENSE:=GPL-2.0
 
@@ -17,7 +17,7 @@ include $(INCLUDE_DIR)/package.mk
 define Package/ds-lite
   SECTION:=net
   CATEGORY:=Network
-  DEPENDS:=+kmod-ipv6 +kmod-ip6-tunnel
+  DEPENDS:=+kmod-ipv6 +kmod-ip6-tunnel +resolveip
   TITLE:=Dual-Stack Lite (DS-Lite) configuration support
   MAINTAINER:=Steven Barth <steven@midlink.org>
   PKGARCH:=all

package/network/ipv6/ds-lite/files/dslite.sh

@@ -25,6 +25,17 @@ proto_dslite_setup() {
 
 	( proto_add_host_dependency "$cfg" "::" "$tunlink" )
 
+	peeraddr=$(resolveip -6 $peeraddr)
+	if [ -z "$peeraddr" ]; then
+		sleep 3
+		peeraddr=$(resolveip -6 $peeraddr)
+		if [ -z "$peeraddr" ]; then
+			proto_notify_error "$cfg" "AFTR_DNS_FAIL"
+			return
+		fi
+	fi
+	peeraddr="${peeraddr%% *}"
+
 	[ -z "$ip6addr" ] && {
 		local wanif="$tunlink"
 		if [ -z "$wanif" ] && ! network_find_wan6 wanif; then