2 * Routines for AIM Instant Messenger (OSCAR) dissection, SNAC Chat
3 * Copyright 2004, Jelmer Vernooij <jelmer@samba.org>
4 * Copyright 2000, Ralf Hoelzer <ralf@well.com>
8 * Wireshark - Network traffic analyzer
9 * By Gerald Combs <gerald@wireshark.org>
10 * Copyright 1998 Gerald Combs
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
38 #include <epan/packet.h>
39 #include <epan/strutil.h>
40 #include <epan/emem.h>
42 #include "packet-tcp.h"
43 #include "packet-aim.h"
46 #define FAMILY_CHAT 0x000E
48 #define AIM_CHAT_TLV_BROWSABLE_TREE 0x001
49 #define AIM_CHAT_TLV_CLASS_EXCLUSIVE 0x002
50 #define AIM_CHAT_TLV_MAX_CONCURRENT_ROOMS 0x003
51 #define AIM_CHAT_TLV_MAX_ROOM_NAME_LEN 0x004
52 #define AIM_CHAT_TLV_ROOT_ROOMS 0x005
53 #define AIM_CHAT_TLV_SEARCH_TAGS 0x006
54 #define AIM_CHAT_TLV_CHILD_ROOMS 0x065
55 #define AIM_CHAT_TLV_CONTAINS_USER_CLASS 0x066
56 #define AIM_CHAT_TLV_CONTAINS_USER_ARRAY 0x067
58 static const aim_tlv chat_tlvs[] = {
59 { AIM_CHAT_TLV_BROWSABLE_TREE, "Browsable tree", dissect_aim_tlv_value_bytes },
60 { AIM_CHAT_TLV_CLASS_EXCLUSIVE, "Exclusively for class", dissect_aim_tlv_value_userclass },
61 { AIM_CHAT_TLV_MAX_CONCURRENT_ROOMS, "Max. number of concurrent rooms", dissect_aim_tlv_value_uint8 },
62 { AIM_CHAT_TLV_MAX_ROOM_NAME_LEN, "Max. length of room name", dissect_aim_tlv_value_uint8 },
63 { AIM_CHAT_TLV_ROOT_ROOMS, "Root Rooms", dissect_aim_tlv_value_bytes },
64 { AIM_CHAT_TLV_SEARCH_TAGS, "Search Tags", dissect_aim_tlv_value_bytes },
65 { AIM_CHAT_TLV_CHILD_ROOMS, "Child Rooms", dissect_aim_tlv_value_bytes },
66 { AIM_CHAT_TLV_CONTAINS_USER_CLASS, "Contains User Class", dissect_aim_tlv_value_bytes },
67 { AIM_CHAT_TLV_CONTAINS_USER_ARRAY, "Contains User Array", dissect_aim_tlv_value_bytes },
71 /* Initialize the protocol and registered fields */
72 static int proto_aim_chat = -1;
74 /* Initialize the subtree pointers */
75 static gint ett_aim_chat = -1;
77 static int dissect_aim_chat_userinfo_list(tvbuff_t *tvb, packet_info *pinfo, proto_tree *chat_tree)
80 while(tvb_length_remaining(tvb, offset) > 0) {
81 offset = dissect_aim_userinfo(tvb, pinfo, offset, chat_tree);
86 static int dissect_aim_chat_outgoing_msg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *chat_tree _U_)
92 buddyname=ep_alloc(MAX_BUDDYNAME_LENGTH+1);
94 buddyname_length = aim_get_buddyname( buddyname, tvb, 30, 31 );
96 /* channel message from client */
97 aim_get_message( msg, tvb, 40 + buddyname_length, tvb_length(tvb)
98 - 40 - buddyname_length );
100 if (check_col(pinfo->cinfo, COL_INFO))
101 col_append_fstr(pinfo->cinfo, COL_INFO, " -> %s", msg);
103 return tvb_length(tvb);
107 static int dissect_aim_chat_incoming_msg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *chat_tree)
111 /* channel message to client */
112 int buddyname_length;
114 buddyname=ep_alloc(MAX_BUDDYNAME_LENGTH+1);
116 buddyname_length = aim_get_buddyname( buddyname, tvb, 30, 31 );
118 aim_get_message( msg, tvb, 36 + buddyname_length, tvb_length(tvb)
119 - 36 - buddyname_length );
121 if (check_col(pinfo->cinfo, COL_INFO)) {
122 col_append_fstr(pinfo->cinfo, COL_INFO, "from: %s", buddyname);
123 col_append_fstr(pinfo->cinfo, COL_INFO, " -> %s", msg);
127 proto_tree_add_text(chat_tree, tvb, 31, buddyname_length,
129 format_text(buddyname, buddyname_length));
131 return tvb_length(tvb);
134 static const aim_subtype aim_fnac_family_chat[] = {
135 { 0x0001, "Error", dissect_aim_snac_error },
136 { 0x0002, "Room Info Update", NULL },
137 { 0x0003, "User Join", dissect_aim_chat_userinfo_list },
138 { 0x0004, "User Leave", dissect_aim_chat_userinfo_list },
139 { 0x0005, "Outgoing Message", dissect_aim_chat_outgoing_msg },
140 { 0x0006, "Incoming Message", dissect_aim_chat_incoming_msg },
141 { 0x0007, "Evil Request", NULL },
142 { 0x0008, "Evil Reply", NULL },
146 /* Register the protocol with Wireshark */
148 proto_register_aim_chat(void)
151 /* Setup list of header fields */
153 static hf_register_info hf[] = {
156 /* Setup protocol subtree array */
157 static gint *ett[] = {
161 /* Register the protocol name and description */
162 proto_aim_chat = proto_register_protocol("AIM Chat Service", "AIM Chat", "aim_chat");
164 /* Required function calls to register the header fields and subtrees used */
166 proto_register_field_array(proto_aim_chat, hf, array_length(hf));*/
167 proto_register_subtree_array(ett, array_length(ett));
171 proto_reg_handoff_aim_chat(void)
173 aim_init_family(proto_aim_chat, ett_aim_chat, FAMILY_CHAT, aim_fnac_family_chat);