new file mode 100644
@@ -0,0 +1,38 @@
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=xfrm
+PKG_VERSION:=1
+PKG_RELEASE:=1
+PKG_LICENSE:=GPL-2.0
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/xfrm/Default
+ SECTION:=net
+ CATEGORY:=Network
+ MAINTAINER:=Andre Valentin <avalentin@marcant.net>
+endef
+
+define Package/xfrm
+$(call Package/xfrm/Default)
+ TITLE:=XFRM IPsec Tunnel Interface config support
+ DEPENDS:=+kmod-xfrm-interface
+endef
+
+define Package/xfrm/description
+ XFRM IPsec Tunnel Interface config support (IPv4 and IPv6) in /etc/config/network.
+endef
+
+define Build/Compile
+endef
+
+define Build/Configure
+endef
+
+define Package/xfrm/install
+ $(INSTALL_DIR) $(1)/lib/netifd/proto
+ $(INSTALL_BIN) ./files/xfrm.sh $(1)/lib/netifd/proto/xfrm.sh
+endef
+
+$(eval $(call BuildPackage,xfrm))
new file mode 100755
@@ -0,0 +1,65 @@
+#!/bin/sh
+
+[ -n "$INCLUDE_ONLY" ] || {
+ . /lib/functions.sh
+ . /lib/functions/network.sh
+ . ../netifd-proto.sh
+ init_proto "$@"
+}
+
+proto_xfrm_setup() {
+ local cfg="$1"
+ local mode="xfrm"
+
+ local tunlink ifid mtu zone
+ json_get_vars tunlink ifid mtu zone
+
+ proto_init_update "$cfg" 1
+
+ proto_add_tunnel
+ json_add_string mode "$mode"
+ json_add_int mtu "${mtu:-1280}"
+
+ [ -z "$tunlink" ] && {
+ proto_notify_error "$cfg" NO_TUNLINK
+ proto_block_restart "$cfg"
+ exit
+ }
+ json_add_string link "$tunlink"
+
+ [ -z "$ifid" ] && {
+ proto_notify_error "$cfg" NO_IFID
+ proto_block_restart "$cfg"
+ exit
+ }
+ json_add_object 'data'
+ [ -n "$ifid" ] && json_add_int ifid "$ifid"
+ json_close_object
+
+ proto_close_tunnel
+
+ proto_add_data
+ [ -n "$zone" ] && json_add_string zone "$zone"
+ proto_close_data
+
+ proto_send_update "$cfg"
+}
+
+proto_xfrm_teardown() {
+ local cfg="$1"
+}
+
+proto_xfrm_init_config() {
+ no_device=1
+ available=1
+
+ proto_config_add_int "mtu"
+ proto_config_add_string "tunlink"
+ proto_config_add_string "zone"
+ proto_config_add_int "ifid"
+}
+
+
+[ -n "$INCLUDE_ONLY" ] || {
+ [ -f /lib/modules/$(uname -r)/xfrm_interface.ko -o -d /sys/module/xfrm_interface ] && add_protocol xfrm
+}
This package adds scripts for xfrm interfaces support. Example configuration via /etc/config/network: config interface 'xfrm0' option proto 'xfrm' option mtu '1300' option zone 'VPN' option tunlink 'wan' option ifid 30 config interface 'xfrm0_static' option proto 'static' option ifname '@xfrm0' option ip6addr 'fe80::1/64' option ipaddr '10.0.0.1/30' Now set in strongswan IPsec policy: if_id_in = 30 if_id_out = 30 --- package/network/config/xfrm/Makefile | 38 ++++++++++++++++++ package/network/config/xfrm/files/xfrm.sh | 65 +++++++++++++++++++++++++++++++ 2 files changed, 103 insertions(+) create mode 100644 package/network/config/xfrm/Makefile create mode 100755 package/network/config/xfrm/files/xfrm.sh