1 files changed, 45 insertions, 0 deletions
diff --git a/src/network/netdev/xfrm.c b/src/network/netdev/xfrm.c
new file mode 100644
index 0000000..905bfc0
--- /dev/null
+++ b/src/network/netdev/xfrm.c
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <linux/if_arp.h>
+
+#include "missing_network.h"
+#include "xfrm.h"
+
+static int xfrm_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *message) {
+        assert(message);
+
+        Xfrm *x = XFRM(netdev);
+        int r;
+
+        assert(link || x->independent);
+
+        r = sd_netlink_message_append_u32(message, IFLA_XFRM_LINK, link ? link->ifindex : LOOPBACK_IFINDEX);
+        if (r < 0)
+                return r;
+
+        r = sd_netlink_message_append_u32(message, IFLA_XFRM_IF_ID, x->if_id);
+        if (r < 0)
+                return r;
+
+        return 0;
+}
+
+static int xfrm_verify(NetDev *netdev, const char *filename) {
+        assert(filename);
+
+        Xfrm *x = XFRM(netdev);
+
+        if (x->if_id == 0)
+                return log_netdev_warning_errno(netdev, SYNTHETIC_ERRNO(EINVAL),
+                                                "%s: Xfrm interface ID cannot be zero.", filename);
+        return 0;
+}
+
+const NetDevVTable xfrm_vtable = {
+        .object_size = sizeof(Xfrm),
+        .sections = NETDEV_COMMON_SECTIONS "Xfrm\0",
+        .fill_message_create = xfrm_fill_message_create,
+        .config_verify = xfrm_verify,
+        .create_type = NETDEV_CREATE_STACKED,
+        .iftype = ARPHRD_NONE,
+};