forked from osmocom/wireshark
![Ronnie Sahlberg](/assets/img/avatar_default.png)
while this should improve performance by unmeasurably little it does have the sideeffect that once we finish the rewrite tcp analysis might actually work and work well even for tcp over tcp tunnelling. this also means that if you include packet-tcp.h you also need to include emem.h . svn path=/trunk/; revision=17681
167 lines
5.3 KiB
C
167 lines
5.3 KiB
C
/* packet-aim-chat.c
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* Routines for AIM Instant Messenger (OSCAR) dissection, SNAC Chat
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* Copyright 2004, Jelmer Vernooij <jelmer@samba.org>
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* Copyright 2000, Ralf Hoelzer <ralf@well.com>
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*
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* $Id$
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <glib.h>
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#include <epan/packet.h>
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#include <epan/strutil.h>
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#include <epan/emem.h>
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#include "packet-tcp.h"
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#include "packet-aim.h"
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/* SNAC families */
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#define FAMILY_CHAT 0x000E
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#define AIM_CHAT_TLV_BROWSABLE_TREE 0x001
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#define AIM_CHAT_TLV_CLASS_EXCLUSIVE 0x002
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#define AIM_CHAT_TLV_MAX_CONCURRENT_ROOMS 0x003
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#define AIM_CHAT_TLV_MAX_ROOM_NAME_LEN 0x004
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#define AIM_CHAT_TLV_ROOT_ROOMS 0x005
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#define AIM_CHAT_TLV_SEARCH_TAGS 0x006
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#define AIM_CHAT_TLV_CHILD_ROOMS 0x065
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#define AIM_CHAT_TLV_CONTAINS_USER_CLASS 0x066
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#define AIM_CHAT_TLV_CONTAINS_USER_ARRAY 0x067
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static const aim_tlv chat_tlvs[] = {
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{ AIM_CHAT_TLV_BROWSABLE_TREE, "Browsable tree", dissect_aim_tlv_value_bytes },
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{ AIM_CHAT_TLV_CLASS_EXCLUSIVE, "Exclusively for class", dissect_aim_tlv_value_userclass },
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{ AIM_CHAT_TLV_MAX_CONCURRENT_ROOMS, "Max. number of concurrent rooms", dissect_aim_tlv_value_uint8 },
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{ AIM_CHAT_TLV_MAX_ROOM_NAME_LEN, "Max. length of room name", dissect_aim_tlv_value_uint8 },
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{ AIM_CHAT_TLV_ROOT_ROOMS, "Root Rooms", dissect_aim_tlv_value_bytes },
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{ AIM_CHAT_TLV_SEARCH_TAGS, "Search Tags", dissect_aim_tlv_value_bytes },
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{ AIM_CHAT_TLV_CHILD_ROOMS, "Child Rooms", dissect_aim_tlv_value_bytes },
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{ AIM_CHAT_TLV_CONTAINS_USER_CLASS, "Contains User Class", dissect_aim_tlv_value_bytes },
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{ AIM_CHAT_TLV_CONTAINS_USER_ARRAY, "Contains User Array", dissect_aim_tlv_value_bytes },
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{ 0, NULL, NULL }
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};
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/* Initialize the protocol and registered fields */
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static int proto_aim_chat = -1;
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/* Initialize the subtree pointers */
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static gint ett_aim_chat = -1;
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static int dissect_aim_chat_userinfo_list(tvbuff_t *tvb, packet_info *pinfo, proto_tree *chat_tree)
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{
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int offset = 0;
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while(tvb_length_remaining(tvb, offset) > 0) {
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offset = dissect_aim_userinfo(tvb, pinfo, offset, chat_tree);
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}
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return offset;
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}
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static int dissect_aim_chat_outgoing_msg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *chat_tree _U_)
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{
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char buddyname[MAX_BUDDYNAME_LENGTH+1];
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guchar msg[1000];
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int buddyname_length = aim_get_buddyname( buddyname, tvb, 30, 31 );
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/* channel message from client */
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aim_get_message( msg, tvb, 40 + buddyname_length, tvb_length(tvb)
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- 40 - buddyname_length );
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if (check_col(pinfo->cinfo, COL_INFO))
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col_append_fstr(pinfo->cinfo, COL_INFO, " -> %s", msg);
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return tvb_length(tvb);
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}
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static int dissect_aim_chat_incoming_msg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *chat_tree)
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{
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char buddyname[MAX_BUDDYNAME_LENGTH+1];
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guchar msg[1000];
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/* channel message to client */
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int buddyname_length = aim_get_buddyname( buddyname, tvb, 30, 31 );
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aim_get_message( msg, tvb, 36 + buddyname_length, tvb_length(tvb)
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- 36 - buddyname_length );
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if (check_col(pinfo->cinfo, COL_INFO)) {
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col_append_fstr(pinfo->cinfo, COL_INFO, "from: %s", buddyname);
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col_append_fstr(pinfo->cinfo, COL_INFO, " -> %s", msg);
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}
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if(chat_tree) {
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proto_tree_add_text(chat_tree, tvb, 31, buddyname_length,
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"Screen Name: %s",
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format_text(buddyname, buddyname_length));
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}
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return tvb_length(tvb);
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}
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static const aim_subtype aim_fnac_family_chat[] = {
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{ 0x0001, "Error", dissect_aim_snac_error },
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{ 0x0002, "Room Info Update", NULL },
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{ 0x0003, "User Join", dissect_aim_chat_userinfo_list },
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{ 0x0004, "User Leave", dissect_aim_chat_userinfo_list },
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{ 0x0005, "Outgoing Message", dissect_aim_chat_outgoing_msg },
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{ 0x0006, "Incoming Message", dissect_aim_chat_incoming_msg },
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{ 0x0007, "Evil Request", NULL },
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{ 0x0008, "Evil Reply", NULL },
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{ 0, NULL, NULL }
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};
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/* Register the protocol with Ethereal */
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void
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proto_register_aim_chat(void)
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{
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/* Setup list of header fields */
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/*FIXME
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static hf_register_info hf[] = {
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};*/
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/* Setup protocol subtree array */
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static gint *ett[] = {
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&ett_aim_chat,
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};
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/* Register the protocol name and description */
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proto_aim_chat = proto_register_protocol("AIM Chat Service", "AIM Chat", "aim_chat");
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/* Required function calls to register the header fields and subtrees used */
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/*FIXME
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proto_register_field_array(proto_aim_chat, hf, array_length(hf));*/
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proto_register_subtree_array(ett, array_length(ett));
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}
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void
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proto_reg_handoff_aim_chat(void)
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{
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aim_init_family(proto_aim_chat, ett_aim_chat, FAMILY_CHAT, aim_fnac_family_chat);
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}
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