From 9b3d4ae0a13ebacc8b0a570e58b5ba83dfdefee0 Mon Sep 17 00:00:00 2001
From: sahlberg <sahlberg@f5534014-38df-0310-8fa8-9805f1628bb7>
Date: Thu, 15 Nov 2007 10:38:43 +0000
Subject: only dissect it as t125 if it looks like t125

dissect_ber_choice() returns the index of the choice taken   not the
tag value



git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@23460 f5534014-38df-0310-8fa8-9805f1628bb7
---
 asn1/t125/packet-t125-template.c | 18 +++++++++---------
 asn1/t125/t125.cnf               | 18 ++++++++++--------
 2 files changed, 19 insertions(+), 17 deletions(-)

(limited to 'asn1')

diff --git a/asn1/t125/packet-t125-template.c b/asn1/t125/packet-t125-template.c
index 04106c447d..b28e8890ee 100644
--- a/asn1/t125/packet-t125-template.c
+++ b/asn1/t125/packet-t125-template.c
@@ -22,14 +22,6 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  *
- * To quote the author of the previous H245 dissector:
- *   "This is a complete replacement of the previous limitied dissector
- * that Ronnie was crazy enough to write by hand. It was a lot of time
- * to hack it by hand, but it is incomplete and buggy and it is good when
- * it will go away."
- * Ronnie did a great job and all the VoIP users had made good use of it!
- * Credit to Tomas Kukosa for developing the asn2wrs compiler.
- *
  */
 
 #ifdef HAVE_CONFIG_H
@@ -68,6 +60,9 @@ dissect_t125(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *parent_tree)
 {
   proto_item *item = NULL;
   proto_tree *tree = NULL;
+  gint8 class;
+  gboolean pc;
+  gint32 tag;
 
   if (check_col(pinfo->cinfo, COL_PROTOCOL)){
     col_set_str(pinfo->cinfo, COL_PROTOCOL, "T.125");
@@ -79,8 +74,13 @@ dissect_t125(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *parent_tree)
   item = proto_tree_add_item(parent_tree, proto_t125, tvb, 0, tvb_length(tvb), FALSE);
   tree = proto_item_add_subtree(item, ett_t125);
 
+  get_ber_identifier(tvb, 0, &class, &pc, &tag);
 
-  dissect_ConnectMCSPDU_PDU(tvb, pinfo, tree);
+  if ( (class==BER_CLASS_APP) && (tag>=101) && (tag<=104) ){
+    dissect_ConnectMCSPDU_PDU(tvb, pinfo, tree);
+  } else {
+    proto_tree_add_text(tree, tvb, 0, -1, "T.125 payload");
+  }
 
   return tvb_length(tvb);
 }
diff --git a/asn1/t125/t125.cnf b/asn1/t125/t125.cnf
index 1adccdeff7..978779ea09 100644
--- a/asn1/t125/t125.cnf
+++ b/asn1/t125/t125.cnf
@@ -19,22 +19,24 @@ DomainMCSPDU
 #----------------------------------------------------------------------------------------
 
 #.FN_BODY ConnectMCSPDU  VAL_PTR = &connectmcs_value
-  	guint32 connectmcs_value;
+  	gint connectmcs_value;
 
 %(DEFAULT_BODY)s
-	if (check_col(%(ACTX)s->pinfo->cinfo, COL_INFO)){
-		col_add_fstr(%(ACTX)s->pinfo->cinfo, COL_INFO, "MCS: %%s ",
-			val_to_str(connectmcs_value, t125_ConnectMCSPDU_vals, "<unknown>"));
+	if( (connectmcs_value!=-1) && t125_ConnectMCSPDU_vals[connectmcs_value].strptr ){
+		if (check_col(%(ACTX)s->pinfo->cinfo, COL_INFO)){
+			col_add_fstr(%(ACTX)s->pinfo->cinfo, COL_INFO, "MCS: %%s ", t125_ConnectMCSPDU_vals[connectmcs_value].strptr);
+		}
 	}
 #.END
 
 #.FN_BODY DomainMCSPDU  VAL_PTR = &domainmcs_value
-  	guint32 domainmcs_value;
+  	gint domainmcs_value;
 
 %(DEFAULT_BODY)s
-	if (check_col(%(ACTX)s->pinfo->cinfo, COL_INFO)){
-		col_add_fstr(%(ACTX)s->pinfo->cinfo, COL_INFO, "MCS: %%s ",
-			val_to_str(domainmcs_value, t125_DomainMCSPDU_vals, "<unknown>"));
+	if( (domainmcs_value!=-1) && t125_DomainMCSPDU_vals[domainmcs_value].strptr ){
+		if (check_col(%(ACTX)s->pinfo->cinfo, COL_INFO)){
+			col_add_fstr(%(ACTX)s->pinfo->cinfo, COL_INFO, "MCS: %%s ", t125_DomainMCSPDU_vals[domainmcs_value].strptr);
+		}
 	}
 #.END
 
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