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/* packet-aim-chat.c
* Routines for AIM Instant Messenger (OSCAR) dissection, SNAC Chat
* Copyright 2004, Jelmer Vernooij <jelmer@samba.org>
* Copyright 2000, Ralf Hoelzer <ralf@well.com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <epan/packet.h>
#include "packet-aim.h"
void proto_register_aim_chat(void);
void proto_reg_handoff_aim_chat(void);
/* SNAC families */
#define FAMILY_CHAT 0x000E
#define AIM_CHAT_TLV_BROWSABLE_TREE 0x001
#define AIM_CHAT_TLV_CLASS_EXCLUSIVE 0x002
#define AIM_CHAT_TLV_MAX_CONCURRENT_ROOMS 0x003
#define AIM_CHAT_TLV_MAX_ROOM_NAME_LEN 0x004
#define AIM_CHAT_TLV_ROOT_ROOMS 0x005
#define AIM_CHAT_TLV_SEARCH_TAGS 0x006
#define AIM_CHAT_TLV_CHILD_ROOMS 0x065
#define AIM_CHAT_TLV_CONTAINS_USER_CLASS 0x066
#define AIM_CHAT_TLV_CONTAINS_USER_ARRAY 0x067
#if 0
static const aim_tlv aim_chat_tlvs[] _U_ = {
{ AIM_CHAT_TLV_BROWSABLE_TREE, "Browsable tree", dissect_aim_tlv_value_bytes },
{ AIM_CHAT_TLV_CLASS_EXCLUSIVE, "Exclusively for class", dissect_aim_tlv_value_userclass },
{ AIM_CHAT_TLV_MAX_CONCURRENT_ROOMS, "Max. number of concurrent rooms", dissect_aim_tlv_value_uint8 },
{ AIM_CHAT_TLV_MAX_ROOM_NAME_LEN, "Max. length of room name", dissect_aim_tlv_value_uint8 },
{ AIM_CHAT_TLV_ROOT_ROOMS, "Root Rooms", dissect_aim_tlv_value_bytes },
{ AIM_CHAT_TLV_SEARCH_TAGS, "Search Tags", dissect_aim_tlv_value_bytes },
{ AIM_CHAT_TLV_CHILD_ROOMS, "Child Rooms", dissect_aim_tlv_value_bytes },
{ AIM_CHAT_TLV_CONTAINS_USER_CLASS, "Contains User Class", dissect_aim_tlv_value_bytes },
{ AIM_CHAT_TLV_CONTAINS_USER_ARRAY, "Contains User Array", dissect_aim_tlv_value_bytes },
{ 0, NULL, NULL }
};
#endif
/* Initialize the protocol and registered fields */
static int proto_aim_chat = -1;
static int hf_aim_chat_screen_name = -1;
/* Initialize the subtree pointers */
static gint ett_aim_chat = -1;
static int dissect_aim_chat_userinfo_list(tvbuff_t *tvb, packet_info *pinfo, proto_tree *chat_tree)
{
int offset = 0;
while(tvb_reported_length_remaining(tvb, offset) > 0) {
offset = dissect_aim_userinfo(tvb, pinfo, offset, chat_tree);
}
return offset;
}
static int dissect_aim_chat_outgoing_msg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *chat_tree _U_)
{
guint8 *buddyname;
guchar *msg;
int buddyname_length;
msg=(guchar *)wmem_alloc(wmem_packet_scope(), 1000);
buddyname_length = aim_get_buddyname( &buddyname, tvb, 30 );
/* channel message from client */
aim_get_message( msg, tvb, 40 + buddyname_length, tvb_reported_length(tvb)
- 40 - buddyname_length );
col_append_fstr(pinfo->cinfo, COL_INFO, " -> %s", msg);
return tvb_reported_length(tvb);
}
static int dissect_aim_chat_incoming_msg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *chat_tree)
{
guint8 *buddyname;
guchar *msg;
/* channel message to client */
int buddyname_length;
msg=(guchar *)wmem_alloc(wmem_packet_scope(), 1000);
buddyname_length = aim_get_buddyname( &buddyname, tvb, 30 );
aim_get_message( msg, tvb, 36 + buddyname_length, tvb_reported_length(tvb)
- 36 - buddyname_length );
col_append_fstr(pinfo->cinfo, COL_INFO, "from: %s", buddyname);
col_append_fstr(pinfo->cinfo, COL_INFO, " -> %s", msg);
proto_tree_add_string(chat_tree, hf_aim_chat_screen_name, tvb, 31, buddyname_length, buddyname);
return tvb_reported_length(tvb);
}
static const aim_subtype aim_fnac_family_chat[] = {
{ 0x0001, "Error", dissect_aim_snac_error },
{ 0x0002, "Room Info Update", NULL },
{ 0x0003, "User Join", dissect_aim_chat_userinfo_list },
{ 0x0004, "User Leave", dissect_aim_chat_userinfo_list },
{ 0x0005, "Outgoing Message", dissect_aim_chat_outgoing_msg },
{ 0x0006, "Incoming Message", dissect_aim_chat_incoming_msg },
{ 0x0007, "Evil Request", NULL },
{ 0x0008, "Evil Reply", NULL },
{ 0, NULL, NULL }
};
/* Register the protocol with Wireshark */
void
proto_register_aim_chat(void)
{
/* Setup list of header fields */
static hf_register_info hf[] = {
{ &hf_aim_chat_screen_name,
{ "Screen Name", "aim_chat.screen_name", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL },
},
};
/* Setup protocol subtree array */
static gint *ett[] = {
&ett_aim_chat,
};
/* Register the protocol name and description */
proto_aim_chat = proto_register_protocol("AIM Chat Service", "AIM Chat", "aim_chat");
/* Required function calls to register the header fields and subtrees used */
proto_register_field_array(proto_aim_chat, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
void
proto_reg_handoff_aim_chat(void)
{
aim_init_family(proto_aim_chat, ett_aim_chat, FAMILY_CHAT, aim_fnac_family_chat);
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/
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