/* packet-aim-chat.c * Routines for AIM Instant Messenger (OSCAR) dissection, SNAC Chat * Copyright 2004, Jelmer Vernooij * Copyright 2000, Ralf Hoelzer * * $Id: packet-aim-chat.c,v 1.5 2004/06/16 07:51:21 guy Exp $ * * Ethereal - Network traffic analyzer * By Gerald Combs * 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. */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #include #include #include #include #include #include #include "packet-tcp.h" #include "packet-aim.h" #include "prefs.h" /* SNAC families */ #define FAMILY_CHAT 0x000E /* Family Chat */ #define FAMILY_CHAT_ERROR 0x0001 #define FAMILY_CHAT_ROOMINFOUPDATE 0x0002 #define FAMILY_CHAT_USERJOIN 0x0003 #define FAMILY_CHAT_USERLEAVE 0x0004 #define FAMILY_CHAT_OUTGOINGMSG 0x0005 #define FAMILY_CHAT_INCOMINGMSG 0x0006 #define FAMILY_CHAT_EVIL_REQ 0x0007 #define FAMILY_CHAT_EVIL_REPLY 0x0008 #define FAMILY_CHAT_DEFAULT 0xffff static const value_string aim_fnac_family_chat[] = { { FAMILY_CHAT_ERROR, "Error" }, { FAMILY_CHAT_ROOMINFOUPDATE, "Room Info Update" }, { FAMILY_CHAT_USERJOIN, "User Join" }, { FAMILY_CHAT_USERLEAVE, "User Leave" }, { FAMILY_CHAT_OUTGOINGMSG, "Outgoing Message" }, { FAMILY_CHAT_INCOMINGMSG, "Incoming Message" }, { FAMILY_CHAT_EVIL_REQ, "Evil Request" }, { FAMILY_CHAT_EVIL_REPLY, "Evil Reply" }, { FAMILY_CHAT_DEFAULT, "Chat Default" }, { 0, NULL } }; #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 static const aim_tlv chat_tlvs[] = { { 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 } }; /* Initialize the protocol and registered fields */ static int proto_aim_chat = -1; /* Initialize the subtree pointers */ static gint ett_aim_chat = -1; static int dissect_aim_snac_chat(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { guint8 buddyname_length = 0; int offset = 0; struct aiminfo *aiminfo = pinfo->private_data; char buddyname[MAX_BUDDYNAME_LENGTH + 1]; guchar msg[1000]; proto_item *ti; proto_tree *chat_tree = NULL; if(tree) { ti = proto_tree_add_text(tree, tvb, 0, -1, "Chat Service"); chat_tree = proto_item_add_subtree(ti, ett_aim_chat); } switch(aiminfo->subtype) { case FAMILY_CHAT_ERROR: return dissect_aim_snac_error(tvb, pinfo, offset, chat_tree); case FAMILY_CHAT_USERLEAVE: case FAMILY_CHAT_USERJOIN: while(tvb_length_remaining(tvb, offset) > 0) { offset = dissect_aim_userinfo(tvb, pinfo, offset, chat_tree); } return offset; case FAMILY_CHAT_EVIL_REQ: case FAMILY_CHAT_EVIL_REPLY: case FAMILY_CHAT_ROOMINFOUPDATE: /* FIXME */ return 0; case FAMILY_CHAT_OUTGOINGMSG: /* channel message from client */ aim_get_message( msg, tvb, 40 + buddyname_length, tvb_length(tvb) - 40 - buddyname_length ); if (check_col(pinfo->cinfo, COL_INFO)) col_append_fstr(pinfo->cinfo, COL_INFO, " -> %s", msg); return tvb_length(tvb); case FAMILY_CHAT_INCOMINGMSG: /* channel message to client */ buddyname_length = aim_get_buddyname( buddyname, tvb, 30, 31 ); aim_get_message( msg, tvb, 36 + buddyname_length, tvb_length(tvb) - 36 - buddyname_length ); if (check_col(pinfo->cinfo, COL_INFO)) { col_append_fstr(pinfo->cinfo, COL_INFO, "from: %s", buddyname); col_append_fstr(pinfo->cinfo, COL_INFO, " -> %s", msg); } if(chat_tree) { proto_tree_add_text(chat_tree, tvb, 31, buddyname_length, "Screen Name: %s", format_text(buddyname, buddyname_length)); } return tvb_length(tvb); default: return 0; } } /* Register the protocol with Ethereal */ void proto_register_aim_chat(void) { /* Setup list of header fields */ /*FIXME static hf_register_info hf[] = { };*/ /* 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 */ /*FIXME 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) { dissector_handle_t aim_handle; aim_handle = new_create_dissector_handle(dissect_aim_snac_chat, proto_aim_chat); dissector_add("aim.family", FAMILY_CHAT, aim_handle); aim_init_family(FAMILY_CHAT, "Chat", aim_fnac_family_chat); }