[OpenWrt-Devel] [PATCH] gre: introduce 'nohostroute' option

[Fabian Bläse]

It is not always necessary to add a host route for the gre peer address.

This introduces a new config option 'nohostroute' (similar to the
option introduced for wireguard in d8e2e19) to allow to disable
the creation of those routes explicitely.

Signed-off-by: Fabian Bläse <fabian at blaese.de>
---
 package/network/config/gre/files/gre.sh | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/package/network/config/gre/files/gre.sh b/package/network/config/gre/files/gre.sh
index 2bb1010b76..3414ed3047 100755
--- a/package/network/config/gre/files/gre.sh
+++ b/package/network/config/gre/files/gre.sh
@@ -56,7 +56,7 @@ gre_setup() {
 	local remoteip
 
 	local ipaddr peeraddr
-	json_get_vars df ipaddr peeraddr tunlink
+	json_get_vars df ipaddr peeraddr tunlink nohostroute
 
 	[ -z "$peeraddr" ] && {
 		proto_notify_error "$cfg" "MISSING_PEER_ADDRESS"
@@ -76,7 +76,9 @@ gre_setup() {
 		break
 	done
 
-	( proto_add_host_dependency "$cfg" "$peeraddr" "$tunlink" )
+	if [ "${nohostroute}" != "1" ]; then
+		( proto_add_host_dependency "$cfg" "$peeraddr" "$tunlink" )
+	fi
 
 	[ -z "$ipaddr" ] && {
 		local wanif="$tunlink"
@@ -133,7 +135,7 @@ grev6_setup() {
 	local remoteip6
 
 	local ip6addr peer6addr weakif
-	json_get_vars ip6addr peer6addr tunlink weakif encaplimit
+	json_get_vars ip6addr peer6addr tunlink weakif encaplimit nohostroute
 
 	[ -z "$peer6addr" ] && {
 		proto_notify_error "$cfg" "MISSING_PEER_ADDRESS"
@@ -153,7 +155,9 @@ grev6_setup() {
 		break
 	done
 
-	( proto_add_host_dependency "$cfg" "$peer6addr" "$tunlink" )
+	if [ "${nohostroute}" != "1" ]; then
+		( proto_add_host_dependency "$cfg" "$peer6addr" "$tunlink" )
+	fi
 
 	[ -z "$ip6addr" ] && {
 		local wanif="$tunlink"
@@ -262,6 +266,7 @@ proto_gre_init_config() {
 	proto_config_add_string "ipaddr"
 	proto_config_add_string "peeraddr"
 	proto_config_add_boolean "df"
+	proto_config_add_boolean "nohostroute"
 }
 
 proto_gretap_init_config() {
@@ -275,6 +280,7 @@ proto_grev6_init_config() {
 	proto_config_add_string "peer6addr"
 	proto_config_add_string "weakif"
 	proto_config_add_string "encaplimit"
+	proto_config_add_boolean "nohostroute"
 }
 
 proto_grev6tap_init_config() {
-- 
2.21.0


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