From 5d2b577a53021372ffe8327a102859124d9dffd2 Mon Sep 17 00:00:00 2001
From: Philip Prindeville <philipp@redfish-solutions.com>
Date: Mon, 7 Dec 2020 13:19:30 -0700
Subject: [PATCH] xfrm: support 'multicast' attribute on interfaces
You shouldn't need the overhead of GRE just to add multicast
capability on a point-to-point interface (for instance, you might
want to run mDNS over IPsec transport connections, and Avahi
requires IFF_MULTICAST be set on interfaces, even point-to-point
ones).
Borrowed heavily from:
b3c9321b9e gre: Support multicast configurable gre interfaces
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
---
package/network/config/xfrm/Makefile | 2 +-
package/network/config/xfrm/files/xfrm.sh | 7 +++++--
2 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/package/network/config/xfrm/Makefile b/package/network/config/xfrm/Makefile
index 1b3b99adb0..bcee89f82c 100644
--- a/package/network/config/xfrm/Makefile
+++ b/package/network/config/xfrm/Makefile
@@ -2,7 +2,7 @@
include $(TOPDIR)/rules.mk
PKG_NAME:=xfrm
-PKG_RELEASE:=2
+PKG_RELEASE:=3
PKG_LICENSE:=GPL-2.0
include $(INCLUDE_DIR)/package.mk
diff --git a/package/network/config/xfrm/files/xfrm.sh b/package/network/config/xfrm/files/xfrm.sh
index 1bd1958726..ca7c3380e6 100755
--- a/package/network/config/xfrm/files/xfrm.sh
+++ b/package/network/config/xfrm/files/xfrm.sh
@@ -11,8 +11,8 @@ proto_xfrm_setup() {
local cfg="$1"
local mode="xfrm"
- local tunlink ifid mtu zone
- json_get_vars tunlink ifid mtu zone
+ local tunlink ifid mtu zone multicast
+ json_get_vars tunlink ifid mtu zone multicast
[ -z "$tunlink" ] && {
proto_notify_error "$cfg" NO_TUNLINK
@@ -36,6 +36,8 @@ proto_xfrm_setup() {
json_add_string link "$tunlink"
+ json_add_boolean multicast "${multicast:-1}"
+
json_add_object 'data'
[ -n "$ifid" ] && json_add_int ifid "$ifid"
json_close_object
@@ -61,6 +63,7 @@ proto_xfrm_init_config() {
proto_config_add_string "tunlink"
proto_config_add_string "zone"
proto_config_add_int "ifid"
+ proto_config_add_boolean "multicast"
}
--
2.30.2