decode/events: add event type UDP_LEN_INVALID

(cherry picked from commit eebdfe9a3e)

src/decode-events.c

@@ -270,6 +270,10 @@ const struct DecodeEvents_ DEvents[] = {
             "decoder.udp.hlen_invalid",
             UDP_HLEN_INVALID,
     },
+    {
+            "decoder.udp.len_invalid",
+            UDP_LEN_INVALID,
+    },
 
     /* SLL EVENTS */
     {

src/decode-events.h

@@ -103,6 +103,7 @@ enum {
     UDP_PKT_TOO_SMALL,  /**< udp packet smaller than minimum size */
     UDP_HLEN_TOO_SMALL, /**< udp header smaller than minimum size */
     UDP_HLEN_INVALID,   /**< invalid len of upd header */
+    UDP_LEN_INVALID,    /**< packet len in header is invalid */
 
     /* SLL EVENTS */
     SLL_PKT_TOO_SMALL, /**< sll packet smaller than minimum size */