* Jason Lango <jal@netapp.com>
* Liberally copied from packet-http.c, by Guy Harris <guy@alum.mit.edu>
*
- * $Id: packet-sdp.c,v 1.31 2002/08/02 23:36:00 jmayer Exp $
+ * $Id: packet-sdp.c,v 1.34 2003/06/12 08:33:29 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 Gerald Combs
- *
+ *
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
+ *
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
static int hf_media = -1;
static int hf_media_title = -1;
static int hf_unknown = -1;
-static int hf_misplaced = -1;
static int hf_invalid = -1;
/* hf_owner subfields*/
gint offset = 0;
gint next_offset;
int linelen;
- guchar section;
+ gboolean in_media_description;
guchar type;
guchar delim;
int datalen;
/*
* Show the SDP message a line at a time.
*/
- section = 0;
+ in_media_description = FALSE;
while (tvb_offset_exists(tvb, offset)) {
/*
* Find the end of the line.
switch (type) {
case 'v':
hf = hf_protocol_version;
- section = 'v';
break;
case 'o':
hf = hf_owner;
hf = hf_session_name;
break;
case 'i':
- if (section == 'v'){
- hf = hf_session_info;
- }
- else if (section == 'm'){
+ if (in_media_description) {
hf = hf_media_title;
}
else{
- hf = hf_misplaced;
+ hf = hf_session_info;
}
break;
case 'u':
break;
case 't':
hf = hf_time;
- section = 't';
break;
case 'r':
hf = hf_repeat_time;
break;
case 'm':
hf = hf_media;
- section = 'm';
+ in_media_description = TRUE;
break;
case 'k':
hf = hf_encryption_key;
break;
case 'a':
- if (section == 'v'){
- hf = hf_session_attribute;
- }
- else if (section == 'm'){
+ if (in_media_description) {
hf = hf_media_attribute;
}
else{
- hf = hf_misplaced;
+ hf = hf_session_attribute;
}
break;
case 'z':
break;
}
tokenoffset = 2;
- if( hf == hf_unknown || hf == hf_misplaced )
- tokenoffset = 0;
- string = g_malloc(linelen - tokenoffset + 1);
- CLEANUP_PUSH(g_free, string);
- tvb_memcpy(tvb, (guint8 *)string, offset + tokenoffset,
+ if (hf == hf_unknown)
+ tokenoffset = 0;
+ string = tvb_get_string(tvb, offset + tokenoffset,
linelen - tokenoffset);
- string[linelen - tokenoffset] = '\0';
- sub_ti = proto_tree_add_string_format(sdp_tree,hf,tvb, offset,
+ sub_ti = proto_tree_add_string_format(sdp_tree,hf,tvb, offset,
linelen, string,
"%s: %s",
proto_registrar_get_name(hf),
format_text(string,
linelen - tokenoffset));
- CLEANUP_CALL_AND_POP;
+ g_free(string);
call_sdp_subdissector(tvb_new_subset(tvb,offset+tokenoffset,
linelen-tokenoffset,-1),
hf,sub_ti);
}
}
-static void
+static void
call_sdp_subdissector(tvbuff_t *tvb, int hf, proto_tree* ti){
if(hf == hf_owner){
dissect_sdp_owner(tvb,ti);
}
}
-static void
+static void
dissect_sdp_owner(tvbuff_t *tvb, proto_item *ti){
proto_tree *sdp_owner_tree;
gint offset,next_offset,tokenlen;
tokenlen = 0;
sdp_owner_tree = proto_item_add_subtree(ti,ett_sdp_owner);
-
+
/* Find the username */
next_offset = tvb_find_guint8(tvb,offset,-1,' ');
if( next_offset == -1 )
return;
tokenlen = next_offset - offset;
- proto_tree_add_item(sdp_owner_tree,hf_owner_sessionid, tvb,
+ proto_tree_add_item(sdp_owner_tree,hf_owner_sessionid, tvb,
offset,tokenlen,FALSE);
offset = next_offset + 1;
return;
tokenlen = next_offset - offset;
- proto_tree_add_item(sdp_owner_tree,hf_owner_network_type, tvb,
+ proto_tree_add_item(sdp_owner_tree,hf_owner_network_type, tvb,
offset,tokenlen,FALSE);
offset = next_offset + 1;
-
+
/* Find the address type */
next_offset = tvb_find_guint8(tvb,offset,-1,' ');
if( next_offset == -1 )
return;
tokenlen = next_offset - offset;
- proto_tree_add_item(sdp_owner_tree,hf_owner_address_type, tvb,
+ proto_tree_add_item(sdp_owner_tree,hf_owner_address_type, tvb,
offset,tokenlen,FALSE);
offset = next_offset + 1;
proto_tree_add_item(sdp_owner_tree,hf_owner_address, tvb, offset, -1, FALSE);
}
-static void
+static void
dissect_sdp_connection_info(tvbuff_t *tvb, proto_item* ti){
proto_tree *sdp_connection_info_tree;
gint offset,next_offset,tokenlen;
offset = 0;
next_offset = 0;
tokenlen = 0;
-
+
sdp_connection_info_tree = proto_item_add_subtree(ti,
ett_sdp_connection_info);
-
+
/* Find the network type */
next_offset = tvb_find_guint8(tvb,offset,-1,' ');
if( next_offset == -1 )
tokenlen = next_offset - offset;
proto_tree_add_item(sdp_connection_info_tree,
- hf_connection_info_network_type,tvb,
+ hf_connection_info_network_type,tvb,
offset,tokenlen,FALSE);
offset = next_offset + 1;
tokenlen = next_offset - offset;
proto_tree_add_item(sdp_connection_info_tree,
- hf_connection_info_address_type,tvb,
+ hf_connection_info_address_type,tvb,
offset,tokenlen,FALSE);
offset = next_offset + 1;
tokenlen = next_offset - offset;
}
proto_tree_add_item(sdp_connection_info_tree,
- hf_connection_info_connection_address, tvb,
+ hf_connection_info_connection_address, tvb,
offset,tokenlen,FALSE);
if(next_offset != -1){
offset = next_offset + 1;
}
}
-static void
+static void
dissect_sdp_bandwidth(tvbuff_t *tvb, proto_item *ti){
proto_tree * sdp_bandwidth_tree;
gint offset, next_offset, tokenlen;
-
+
offset = 0;
next_offset = 0;
tokenlen = 0;
if( next_offset == -1)
return;
-
+
tokenlen = next_offset - offset;
-
+
proto_tree_add_item(sdp_bandwidth_tree, hf_bandwidth_modifier,
tvb, offset, tokenlen, FALSE);
offset = next_offset + 1;
-
+
proto_tree_add_item(sdp_bandwidth_tree, hf_bandwidth_value,
tvb, offset, -1, FALSE);
offset = 0;
next_offset = 0;
tokenlen = 0;
-
+
sdp_time_tree = proto_item_add_subtree(ti,ett_sdp_time);
/* get start time */
offset = 0;
next_offset = 0;
tokenlen = 0;
-
+
sdp_repeat_time_tree = proto_item_add_subtree(ti,ett_sdp_time);
/* get interval */
proto_tree_add_item(sdp_repeat_time_tree, hf_repeat_time_offset,
tvb, offset, tokenlen, FALSE);
} while( next_offset != -1 );
-
+
}
-static void
+static void
dissect_sdp_timezone(tvbuff_t *tvb, proto_item* ti){
proto_tree* sdp_timezone_tree;
gint offset, next_offset, tokenlen;
offset = 0;
next_offset = 0;
tokenlen = 0;
-
+
sdp_timezone_tree = proto_item_add_subtree(ti,ett_sdp_timezone);
-
+
do{
next_offset = tvb_find_guint8(tvb,offset,-1,' ');
if(next_offset == -1)
break;
tokenlen = next_offset - offset;
-
+
proto_tree_add_item(sdp_timezone_tree,hf_timezone_time,tvb,
offset, tokenlen, FALSE);
offset = next_offset + 1;
offset, tokenlen, FALSE);
offset = next_offset + 1;
} while (next_offset != -1);
-
+
}
return;
tokenlen = next_offset - offset;
-
+
proto_tree_add_item(sdp_encryption_key_tree,hf_encryption_key_type,
tvb, offset, tokenlen, FALSE);
-
+
offset = next_offset + 1;
proto_tree_add_item(sdp_encryption_key_tree,hf_encryption_key_data,
tvb, offset, -1, FALSE);
return;
tokenlen = next_offset - offset;
-
+
proto_tree_add_item(sdp_session_attribute_tree,
hf_session_attribute_field,
tvb, offset, tokenlen, FALSE);
-
+
offset = next_offset + 1;
proto_tree_add_item(sdp_session_attribute_tree,
hf_session_attribute_value,
}
-static void
+static void
dissect_sdp_media(tvbuff_t *tvb, proto_item *ti){
proto_tree *sdp_media_tree;
gint offset, next_offset, tokenlen;
sdp_media_tree = proto_item_add_subtree(ti,ett_sdp_media);
next_offset = tvb_find_guint8(tvb,offset, -1, ' ');
-
+
if(next_offset == -1)
return;
tokenlen = next_offset - offset;
-
- proto_tree_add_item(sdp_media_tree, hf_media_media, tvb,
+
+ proto_tree_add_item(sdp_media_tree, hf_media_media, tvb,
offset, tokenlen, FALSE);
offset = next_offset + 1;
return;
tokenlen = next_offset - offset;
next_offset = tvb_find_guint8(tvb,offset, tokenlen, '/');
-
+
if(next_offset != -1){
tokenlen = next_offset - offset;
-
- proto_tree_add_item(sdp_media_tree, hf_media_port, tvb,
+
+ proto_tree_add_item(sdp_media_tree, hf_media_port, tvb,
offset, tokenlen, FALSE);
offset = next_offset + 1;
next_offset = tvb_find_guint8(tvb,offset, -1, ' ');
offset = next_offset + 1;
} else {
next_offset = tvb_find_guint8(tvb,offset, -1, ' ');
-
+
if(next_offset == -1)
return;
tokenlen = next_offset - offset;
-
+
proto_tree_add_item(sdp_media_tree, hf_media_port, tvb,
offset, tokenlen, FALSE);
offset = next_offset + 1;
}
next_offset = tvb_find_guint8(tvb,offset,-1,' ');
-
+
if( next_offset == -1)
return;
-
+
tokenlen = next_offset - offset;
proto_tree_add_item(sdp_media_tree, hf_media_proto, tvb,
do{
offset = next_offset + 1;
next_offset = tvb_find_guint8(tvb,offset,-1,' ');
-
+
if(next_offset == -1){
tokenlen = -1; /* End of tvbuff */
} else {
return;
tokenlen = next_offset - offset;
-
+
proto_tree_add_item(sdp_media_attribute_tree,
hf_media_attribute_field,
tvb, offset, tokenlen, FALSE);
-
+
offset = next_offset + 1;
proto_tree_add_item(sdp_media_attribute_tree,
hf_media_attribute_value,
{ "Session Description Protocol Version (v)",
"sdp.version", FT_STRING, BASE_NONE,NULL,0x0,
"Session Description Protocol Version", HFILL }},
- { &hf_owner,
+ { &hf_owner,
{ "Owner/Creator, Session Id (o)",
"sdp.owner", FT_STRING, BASE_NONE, NULL, 0x0,
"Owner/Creator, Session Id", HFILL}},
"sdp.session_name", FT_STRING, BASE_NONE,NULL, 0x0,
"Session Name", HFILL }},
{ &hf_session_info,
- { "Session Information (i)",
+ { "Session Information (i)",
"sdp.session_info", FT_STRING, BASE_NONE, NULL, 0x0,
"Session Information", HFILL }},
{ &hf_uri,
"sdp.uri", FT_STRING, BASE_NONE,NULL, 0x0,
"URI of Description", HFILL }},
{ &hf_email,
- { "E-mail Address (e)",
+ { "E-mail Address (e)",
"sdp.email", FT_STRING, BASE_NONE, NULL, 0x0,
"E-mail Address", HFILL }},
{ &hf_phone,
{ "Encryption Key (k)",
"sdp.encryption_key", FT_STRING, BASE_NONE, NULL, 0x0,
"Encryption Key", HFILL }},
- { &hf_session_attribute,
- { "Session Attribute (a)",
+ { &hf_session_attribute,
+ { "Session Attribute (a)",
"sdp.session_attr", FT_STRING, BASE_NONE, NULL, 0x0,
"Session Attribute", HFILL }},
- { &hf_media_attribute,
- { "Media Attribute (a)",
+ { &hf_media_attribute,
+ { "Media Attribute (a)",
"sdp.media_attr", FT_STRING, BASE_NONE, NULL, 0x0,
"Media Attribute", HFILL }},
{ &hf_time,
{ "Unknown",
"sdp.unknown",FT_STRING, BASE_NONE, NULL, 0x0,
"Unknown", HFILL }},
- { &hf_misplaced,
- { "Misplaced",
- "sdp.misplaced",FT_STRING, BASE_NONE, NULL, 0x0,
- "Misplaced", HFILL }},
{ &hf_invalid,
{ "Invalid line",
"sdp.invalid",FT_STRING, BASE_NONE, NULL, 0x0,
{ &hf_bandwidth_modifier,
{ "Bandwidth Modifier",
"sdp.bandwidth.modifier",FT_STRING, BASE_NONE, NULL, 0x0,
- "Bandwidth Modifier", HFILL }},
+ "Bandwidth Modifier", HFILL }},
{ &hf_bandwidth_value,
{ "Bandwidth Value",
"sdp.bandwidth.value",FT_STRING, BASE_NONE, NULL, 0x0,
- "Bandwidth Value", HFILL }},
+ "Bandwidth Value", HFILL }},
{ &hf_time_start,
{ "Session Start Time",
"sdp.time.start",FT_STRING, BASE_NONE, NULL, 0x0,
&ett_sdp_media,
&ett_sdp_media_attribute,
};
-
+
proto_sdp = proto_register_protocol("Session Description Protocol",
"SDP", "sdp");
proto_register_field_array(proto_sdp, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
-
+
/*
* Register the dissector by name, so other dissectors can
* grab it by name rather than just referring to it directly
git.samba.org / obnox / wireshark / wip.git / blobdiff