lib: add netlink handler function

Signed-off-by: Felix Fietkau <nbd@nbd.name>

2 files changed, 23 insertions, 0 deletions

diff --git a/lib.c b/lib.c
index 0bb287e..55a272a 100644
--- a/lib.c
+++ b/lib.c
@@ -150,6 +150,27 @@ void udebug_ubus_apply_config(struct udebug *ud, struct udebug_ubus_ring *rings,
 	}
 }
 
+void udebug_netlink_msg(struct udebug_buf *buf, uint16_t proto, const void *data, size_t len)
+{
+	struct {
+		uint16_t pkttype;
+		uint16_t arphdr;
+		uint16_t _pad[5];
+		uint16_t proto;
+	} hdr = {
+		.arphdr = cpu_to_be16(824),
+		.proto = cpu_to_be16(proto),
+	};
+
+	if (!udebug_buf_valid(buf))
+		return;
+
+	udebug_entry_init(buf);
+	udebug_entry_append(buf, &hdr, sizeof(hdr));
+	udebug_entry_append(buf, data, len);
+	udebug_entry_add(buf);
+}
+
 void udebug_ubus_init(struct udebug_ubus *ctx, struct ubus_context *ubus,
 		      const char *service, udebug_config_cb cb)
 {
diff --git a/udebug.h b/udebug.h
index ae48837..88f663b 100644
--- a/udebug.h
+++ b/udebug.h
@@ -19,6 +19,8 @@ struct udebug_ubus {
 	udebug_config_cb cb;
 };
 
+void udebug_netlink_msg(struct udebug_buf *buf, uint16_t proto, const void *data, size_t len);
+
 void udebug_ubus_init(struct udebug_ubus *ctx, struct ubus_context *ubus,
 		      const char *service, udebug_config_cb cb);
 void udebug_ubus_ring_init(struct udebug *ud, struct udebug_ubus_ring *ring);