add references to the corresponding request of datagram ping and ack packets

svn path=/trunk/; revision=14815

1 files changed, 38 insertions, 0 deletions

diff --git a/epan/dissectors/packet-dcerpc.c b/epan/dissectors/packet-dcerpc.c
index 0dfa141cd9..085302fb0a 100644
--- a/epan/dissectors/packet-dcerpc.c
+++ b/epan/dissectors/packet-dcerpc.c
@@ -4551,6 +4551,42 @@ dissect_dcerpc_dg_resp (tvbuff_t *tvb, int offset, packet_info *pinfo,
     dissect_dcerpc_dg_stub (tvb, offset, pinfo, dcerpc_tree, tree, hdr, di);
 }
 
+static void
+dissect_dcerpc_dg_ping_ack (tvbuff_t *tvb, int offset, packet_info *pinfo,
+                        proto_tree *dcerpc_tree, proto_tree *tree,
+                        e_dce_dg_common_hdr_t *hdr, conversation_t *conv)
+{
+/*    if(!(pinfo->fd->flags.visited)){*/
+	dcerpc_call_value *call_value;
+	dcerpc_dg_call_key call_key;
+
+	call_key.conv=conv;
+	call_key.seqnum=hdr->seqnum;
+	call_key.act_id=hdr->act_id;
+
+	if((call_value=g_hash_table_lookup(dcerpc_dg_calls, &call_key))){
+        proto_item *pi;
+		nstime_t ns;
+
+		pi = proto_tree_add_uint(dcerpc_tree, hf_dcerpc_request_in,
+				    tvb, 0, 0, call_value->req_frame);
+        PROTO_ITEM_SET_GENERATED(pi);
+
+        if (check_col (pinfo->cinfo, COL_INFO))
+            col_append_fstr(pinfo->cinfo, COL_INFO, " [req: #%u]", call_value->req_frame);
+
+		ns.secs= pinfo->fd->abs_secs-call_value->req_time.secs;
+		ns.nsecs=pinfo->fd->abs_usecs*1000-call_value->req_time.nsecs;
+		if(ns.nsecs<0){
+			ns.nsecs+=1000000000;
+			ns.secs--;
+		}
+		pi = proto_tree_add_time(dcerpc_tree, hf_dcerpc_time, tvb, offset, 0, &ns);
+        PROTO_ITEM_SET_GENERATED(pi);
+/*    }*/
+    }
+}
+
 /*
  * DCERPC dissector for connectionless calls
  */
@@ -4908,6 +4944,8 @@ dissect_dcerpc_dg (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
     /* these requests have no body */
     case PDU_ACK:
     case PDU_PING:
+        dissect_dcerpc_dg_ping_ack (tvb, offset, pinfo, dcerpc_tree, tree, &hdr, conv);
+        break;
     case PDU_WORKING:
     default:
         break;