gre: Support fqdn as remote tunnel endpoint

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>

diff --git a/package/network/config/gre/Makefile b/package/network/config/gre/Makefile
index 12257a8a2cd574fadc65bfe298d99e612a31c290..2e05ffca6fa8877794415206eab90851145bb664 100644 (file)
--- a/package/network/config/gre/Makefile
+++ b/package/network/config/gre/Makefile
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gre
 PKG_VERSION:=1
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 PKG_LICENSE:=GPL-2.0
 
 include $(INCLUDE_DIR)/package.mk
@@ -32,7 +32,7 @@ endef
 define Package/grev4
 $(call Package/gre/Default)
   TITLE:=Generic Routing Encapsulation (IPv4) config support
-  DEPENDS:=@(PACKAGE_gre) +kmod-gre
+  DEPENDS:=@(PACKAGE_gre) +kmod-gre +resolveip
 endef
 
 define Package/grev4/description
@@ -42,7 +42,7 @@ endef
 define Package/grev6
 $(call Package/gre/Default)
   TITLE:=Generic Routing Encapsulation (IPv6) config support
-  DEPENDS:=@(PACKAGE_gre) @IPV6 +kmod-gre6
+  DEPENDS:=@(PACKAGE_gre) @IPV6 +kmod-gre6 +resolveip
 endef
 
 define Package/grev6/description

diff --git a/package/network/config/gre/files/gre.sh b/package/network/config/gre/files/gre.sh
index cab52d30f261ba8c03121e87bf048b80560151ed..3f472c447388998b9fdff8eb5ac5281c20cef7e8 100755 (executable)
--- a/package/network/config/gre/files/gre.sh
+++ b/package/network/config/gre/files/gre.sh
@@ -44,16 +44,29 @@ gre_generic_setup() {
 gre_setup() {
        local cfg="$1"
        local mode="$2"
+       local remoteip
 
        local ipaddr peeraddr
        json_get_vars df ipaddr peeraddr tunlink
 
        [ -z "$peeraddr" ] && {
-               proto_notify_error "$cfg" "MISSING_ADDRESS"
+               proto_notify_error "$cfg" "MISSING_PEER_ADDRESS"
                proto_block_restart "$cfg"
                exit
        }
 
+       remoteip=$(resolveip -t 10 -4 "$peeraddr")
+
+       if [ -z "$remoteip" ]; then
+               proto_notify_error "$cfg" "PEER_RESOLVE_FAIL"
+               exit
+       fi
+
+       for ip in $remoteip; do
+               peeraddr=$ip
+               break
+       done
+
        ( proto_add_host_dependency "$cfg" "$peeraddr" "$tunlink" )
 
        [ -z "$ipaddr" ] && {
@@ -101,16 +114,29 @@ proto_gretap_setup() {
 grev6_setup() {
        local cfg="$1"
        local mode="$2"
+       local remoteip6
 
        local ip6addr peer6addr weakif
        json_get_vars ip6addr peer6addr tunlink weakif
 
        [ -z "$peer6addr" ] && {
-               proto_notify_error "$cfg" "MISSING_ADDRESS"
+               proto_notify_error "$cfg" "MISSING_PEER_ADDRESS"
                proto_block_restart "$cfg"
                exit
        }
 
+       remoteip6=$(resolveip -t 10 -6 "$peer6addr")
+
+       if [ -z "$remoteip6" ]; then
+               proto_notify_error "$cfg" "PEER_RESOLVE_FAIL"
+               exit
+       fi
+
+       for ip6 in $remoteip6; do
+               peer6addr=$ip6
+               break
+       done
+
        ( proto_add_host_dependency "$cfg" "$peer6addr" "$tunlink" )
 
        [ -z "$ip6addr" ] && {