nfq: set drop reason on verdict error

src/decode.c

@@ -803,6 +803,8 @@ const char *PacketDropReasonToString(enum PacketDropReason r)
             return "rules";
         case PKT_DROP_REASON_RULES_THRESHOLD:
             return "threshold detection_filter";
+        case PKT_DROP_REASON_NFQ_ERROR:
+            return "nfq error";
         case PKT_DROP_REASON_NOT_SET:
         default:
             return NULL;

src/decode.h

@@ -410,6 +410,7 @@ enum PacketDropReason {
     PKT_DROP_REASON_STREAM_ERROR,
     PKT_DROP_REASON_STREAM_MEMCAP,
     PKT_DROP_REASON_STREAM_MIDSTREAM,
+    PKT_DROP_REASON_NFQ_ERROR, /**< no nfq verdict, must be error */
 };
 
 /* forward declaration since Packet struct definition requires this */

src/source-nfq.c

@@ -476,7 +476,7 @@ static int NFQSetupPkt (Packet *p, struct nfq_q_handle *qh, void *data)
 static void NFQReleasePacket(Packet *p)
 {
     if (unlikely(!p->nfq_v.verdicted)) {
-        PacketUpdateAction(p, ACTION_DROP);
+        PacketDrop(p, ACTION_DROP, PKT_DROP_REASON_NFQ_ERROR);
         NFQSetVerdict(p);
     }
     PacketFreeOrRelease(p);