decode: fix offset for DCE layer

Fixes: 136d351 ("decode: single network layer entrypoint") Ticket: #3637
OISF · Jul 19, 2023 · fdf9cdf · fdf9cdf
1 parent 9a33c53
commit fdf9cdf
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/decode.h b/src/decode.h
@@ -1202,7 +1202,8 @@ static inline bool DecodeNetworkLayer(ThreadVars *tv, DecodeThreadVars *dtv,
             if (unlikely(len < ETHERNET_DCE_HEADER_LEN)) {
                 ENGINE_SET_INVALID_EVENT(p, DCE_PKT_TOO_SMALL);
             } else {
-                DecodeEthernet(tv, dtv, p, data, len);
+                // DCE layer is ethernet + 2 bytes, followed by another ethernet
+                DecodeEthernet(tv, dtv, p, data + 2, len - 2);
             }
             break;
         case ETHERNET_TYPE_VNTAG: