netifd: add xfrm tunnel interface support

This adds support for xfrm interfaces. These interfaces can be used since
linux 4.19 for IPsec traffic, like VTI interface.
XFRM interfaces are less complicated compared to VTI because they need no IP
tunnel endpoints.

1 files changed, 9 insertions, 0 deletions

diff --git a/system.c b/system.c
index dd9ab50..bbdfef7 100644
--- a/system.c
+++ b/system.c
@@ -70,6 +70,15 @@ const struct uci_blob_param_list vti_data_attr_list = {
 	.params = vti_data_attrs,
 };
 
+static const struct blobmsg_policy xfrm_data_attrs[__XFRM_DATA_ATTR_MAX] = {
+	[XFRM_DATA_IF_ID] = { .name = "ifid", .type = BLOBMSG_TYPE_INT32 },
+};
+
+const struct uci_blob_param_list xfrm_data_attr_list = {
+	.n_params = __XFRM_DATA_ATTR_MAX,
+	.params = xfrm_data_attrs,
+};
+
 static const struct blobmsg_policy sixrd_data_attrs[__SIXRD_DATA_ATTR_MAX] = {
 	[SIXRD_DATA_PREFIX] = { .name = "prefix", .type = BLOBMSG_TYPE_STRING },
 	[SIXRD_DATA_RELAY_PREFIX] = { .name = "relay-prefix", .type = BLOBMSG_TYPE_STRING },