/* packet-aim-messaging.c * Routines for AIM Instant Messenger (OSCAR) dissection, SNAC Messaging * Copyright 2004, Jelmer Vernooij * Copyright 2000, Ralf Hoelzer * Copyright 2004, Devin Heitmueller * * $Id$ * * 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-aim.h" #define FAMILY_MESSAGING 0x0004 #define INCOMING_CH1_MESSAGE_BLOCK 0x0002 #define INCOMING_CH1_SERVER_ACK_REQ 0x0003 #define INCOMING_CH1_MESSAGE_AUTH_RESP 0x0004 #define INCOMING_CH1_MESSAGE_OFFLINE 0x0006 #define INCOMING_CH1_ICON_PRESENT 0x0008 #define INCOMING_CH1_BUDDY_REQ 0x0009 #define INCOMING_CH1_TYPING 0x000b static const aim_tlv messaging_incoming_ch1_tlvs[] = { { INCOMING_CH1_MESSAGE_BLOCK, "Message Block", dissect_aim_tlv_value_messageblock }, { INCOMING_CH1_SERVER_ACK_REQ, "Server Ack Requested", dissect_aim_tlv_value_bytes }, { INCOMING_CH1_MESSAGE_AUTH_RESP, "Message is Auto Response", dissect_aim_tlv_value_bytes }, { INCOMING_CH1_MESSAGE_OFFLINE, "Message was received offline", dissect_aim_tlv_value_bytes }, { INCOMING_CH1_ICON_PRESENT, "Icon present", dissect_aim_tlv_value_bytes }, { INCOMING_CH1_BUDDY_REQ, "Buddy Req", dissect_aim_tlv_value_bytes }, { INCOMING_CH1_TYPING, "Non-direct connect typing notification", dissect_aim_tlv_value_bytes }, { 0, NULL, NULL }, }; int dissect_aim_tlv_value_rendezvous ( proto_item *ti, guint16 valueid _U_, tvbuff_t *tvb, packet_info *pinfo _U_); extern int dissect_aim_tlv_value_capability_data ( proto_item *ti, guint16 valueid _U_, tvbuff_t *tvb, packet_info *pinfo _U_); #define INCOMING_CH2_SERVER_ACK_REQ 0x0003 #define INCOMING_CH2_RENDEZVOUS_DATA 0x0005 static const aim_tlv messaging_incoming_ch2_tlvs[] = { { INCOMING_CH2_SERVER_ACK_REQ, "Server Ack Requested", dissect_aim_tlv_value_bytes }, { INCOMING_CH2_RENDEZVOUS_DATA, "Rendez Vous Data", dissect_aim_tlv_value_rendezvous }, { 0, NULL, NULL }, }; #define RENDEZVOUS_TLV_INT_IP 0x0003 #define RENDEZVOUS_TLV_EXT_IP 0x0004 #define RENDEZVOUS_TLV_EXT_PORT 0x0005 #define RENDEZVOUS_TLV_CAPABILITY_DATA 0x2711 static const aim_tlv rendezvous_tlvs[] = { { RENDEZVOUS_TLV_INT_IP, "Internal IP", dissect_aim_tlv_value_ipv4 }, { RENDEZVOUS_TLV_EXT_IP, "External IP", dissect_aim_tlv_value_ipv4 }, { RENDEZVOUS_TLV_EXT_PORT, "External Port", dissect_aim_tlv_value_uint16 }, { RENDEZVOUS_TLV_CAPABILITY_DATA, "Capability Data", dissect_aim_tlv_value_capability_data }, { 0, NULL, NULL }, }; #define MINITYPING_FINISHED_SIGN 0x0000 #define MINITYPING_TEXT_TYPED_SIGN 0x0001 #define MINITYPING_BEGUN_SIGN 0x0002 static const value_string minityping_type[] = { {MINITYPING_FINISHED_SIGN, "Typing finished sign" }, {MINITYPING_TEXT_TYPED_SIGN, "Text typed sign" }, {MINITYPING_BEGUN_SIGN, "Typing begun sign" }, {0, NULL } }; #define RENDEZVOUS_MSG_REQUEST 0 #define RENDEZVOUS_MSG_CANCEL 1 #define RENDEZVOUS_MSG_ACCEPT 2 static const value_string rendezvous_msg_types[] = { { RENDEZVOUS_MSG_REQUEST, "Request" }, { RENDEZVOUS_MSG_CANCEL, "Cancel" }, { RENDEZVOUS_MSG_ACCEPT, "Accept" }, { 0, "Unknown" }, }; #define EVIL_ORIGIN_ANONYMOUS 1 #define EVIL_ORIGIN_NONANONYMOUS 2 static const value_string evil_origins[] = { {EVIL_ORIGIN_ANONYMOUS, "Anonymous"}, {EVIL_ORIGIN_NONANONYMOUS, "Non-Anonymous"}, {0, NULL }, }; /* Initialize the protocol and registered fields */ static int proto_aim_messaging = -1; static int hf_aim_icbm_channel = -1; static int hf_aim_icbm_cookie = -1; static int hf_aim_icbm_msg_flags = -1; static int hf_aim_icbm_max_sender_warnlevel = -1; static int hf_aim_icbm_max_receiver_warnlevel = -1; static int hf_aim_icbm_max_snac_size = -1; static int hf_aim_icbm_min_msg_interval = -1; static int hf_aim_icbm_unknown = -1; static int hf_aim_icbm_notification_cookie = -1; static int hf_aim_icbm_notification_channel = -1; static int hf_aim_icbm_notification_type = -1; static int hf_aim_message_channel_id = -1; static int hf_aim_icbm_evil = -1; static int hf_aim_evil_warn_level = -1; static int hf_aim_evil_new_warn_level = -1; static int hf_aim_rendezvous_msg_type = -1; /* Initialize the subtree pointers */ static gint ett_aim_messaging = -1; static gint ett_aim_rendezvous_data = -1; int dissect_aim_tlv_value_rendezvous ( proto_item *ti, guint16 valueid _U_, tvbuff_t *tvb, packet_info *pinfo _U_) { int offset = 0; proto_tree *entry = proto_item_add_subtree(ti, ett_aim_rendezvous_data); proto_tree_add_item(entry, hf_aim_rendezvous_msg_type, tvb, offset, 2, FALSE); offset+=2; proto_tree_add_item(entry, hf_aim_icbm_cookie, tvb, offset, 8, FALSE); offset += 8; offset = dissect_aim_capability(entry, tvb, offset); return dissect_aim_tlv_sequence(tvb, pinfo, offset, entry, rendezvous_tlvs); } static int dissect_aim_msg_outgoing(tvbuff_t *tvb, packet_info *pinfo, proto_tree *msg_tree) { int offset = 0; const aim_tlv *ch_tlvs = NULL; guint16 channel_id; /* ICBM Cookie */ proto_tree_add_item(msg_tree, hf_aim_icbm_cookie, tvb, offset, 8, FALSE); offset += 8; /* Message Channel ID */ channel_id = tvb_get_ntohs(tvb, offset); proto_tree_add_item(msg_tree, hf_aim_message_channel_id, tvb, offset, 2, FALSE); offset += 2; /* Add the outgoing username to the info column */ if (check_col(pinfo->cinfo, COL_INFO)) { char buddyname[MAX_BUDDYNAME_LENGTH+1]; int buddyname_length = aim_get_buddyname(buddyname, tvb, offset, offset + 1); col_append_fstr(pinfo->cinfo, COL_INFO, " to: %s", format_text(buddyname, buddyname_length)); } offset = dissect_aim_buddyname(tvb, pinfo, offset, msg_tree); switch(channel_id) { case 1: ch_tlvs = messaging_incoming_ch1_tlvs; break; case 2: ch_tlvs = messaging_incoming_ch2_tlvs; break; default: return offset; } return dissect_aim_tlv_sequence(tvb, pinfo, offset, msg_tree, ch_tlvs); } static int dissect_aim_msg_incoming(tvbuff_t *tvb, packet_info *pinfo, proto_tree *msg_tree) { int offset = 0; const aim_tlv *ch_tlvs; guint16 channel_id; /* ICBM Cookie */ proto_tree_add_item(msg_tree, hf_aim_icbm_cookie, tvb, offset, 8, FALSE); offset += 8; /* Message Channel ID */ proto_tree_add_item(msg_tree, hf_aim_message_channel_id, tvb, offset, 2, FALSE); channel_id = tvb_get_ntohs(tvb, offset); offset += 2; offset = dissect_aim_userinfo(tvb, pinfo, offset, msg_tree); switch(channel_id) { case 1: ch_tlvs = messaging_incoming_ch1_tlvs; break; case 2: ch_tlvs = messaging_incoming_ch2_tlvs; break; default: return offset; } return dissect_aim_tlv_sequence(tvb, pinfo, offset, msg_tree, ch_tlvs); } static int dissect_aim_msg_params(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *msg_tree) { int offset = 0; proto_tree_add_item(msg_tree, hf_aim_icbm_channel, tvb, offset, 2, tvb_get_ntohs(tvb, offset)); offset+=2; proto_tree_add_item(msg_tree, hf_aim_icbm_msg_flags, tvb, offset, 4, tvb_get_ntoh24(tvb, offset)); offset+=4; proto_tree_add_item(msg_tree, hf_aim_icbm_max_snac_size, tvb, offset, 2, tvb_get_ntohs(tvb, offset)); offset+=2; proto_tree_add_item(msg_tree, hf_aim_icbm_max_sender_warnlevel, tvb, offset, 2, tvb_get_ntohs(tvb, offset)); offset+=2; proto_tree_add_item(msg_tree, hf_aim_icbm_max_receiver_warnlevel, tvb, offset, 2, tvb_get_ntohs(tvb, offset)); offset+=2; proto_tree_add_item(msg_tree, hf_aim_icbm_min_msg_interval, tvb, offset, 2, tvb_get_ntohs(tvb, offset)); offset+=2; proto_tree_add_item(msg_tree, hf_aim_icbm_unknown, tvb, offset, 2, tvb_get_ntohs(tvb, offset)); offset+=2; return offset; } static int dissect_aim_msg_evil_req(tvbuff_t *tvb, packet_info *pinfo, proto_tree *msg_tree) { int offset = 0; proto_tree_add_item(msg_tree, hf_aim_icbm_evil, tvb, offset, 2, tvb_get_ntohs(tvb, offset)); offset+=2; return dissect_aim_buddyname(tvb, pinfo, offset, msg_tree); } static int dissect_aim_msg_evil_repl(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *msg_tree) { int offset = 0; proto_tree_add_item(msg_tree, hf_aim_evil_warn_level, tvb, offset, 2, tvb_get_ntohs(tvb, offset)); offset+=2; proto_tree_add_item(msg_tree, hf_aim_evil_new_warn_level, tvb, offset, 2, tvb_get_ntohs(tvb, offset)); offset+=2; return offset; } static int dissect_aim_msg_minityping(tvbuff_t *tvb, packet_info *pinfo, proto_tree *msg_tree) { int offset = 0; proto_tree_add_item(msg_tree,hf_aim_icbm_notification_cookie, tvb, offset, 8, FALSE); offset+=8; proto_tree_add_item(msg_tree,hf_aim_icbm_notification_channel, tvb, offset, 2, tvb_get_ntohs(tvb, offset)); offset+=2; offset = dissect_aim_buddyname(tvb, pinfo, offset, msg_tree); proto_tree_add_item(msg_tree,hf_aim_icbm_notification_type, tvb, offset, 2, tvb_get_ntohs(tvb, offset)); offset+=2; return offset; } static const aim_subtype aim_fnac_family_messaging[] = { { 0x0001, "Error", dissect_aim_snac_error }, { 0x0002, "Set ICBM Parameter", dissect_aim_msg_params }, { 0x0003, "Reset ICBM Parameter", NULL }, { 0x0004, "Request Parameter Info", NULL}, { 0x0005, "Parameter Info", dissect_aim_msg_params }, { 0x0006, "Outgoing", dissect_aim_msg_outgoing }, { 0x0007, "Incoming", dissect_aim_msg_incoming }, { 0x0008, "Evil Request", dissect_aim_msg_evil_req }, { 0x0009, "Evil Response", dissect_aim_msg_evil_repl }, { 0x000a, "Missed Call", NULL }, { 0x000b, "Client Auto Response", NULL }, { 0x000c, "Acknowledge", NULL }, { 0x0014, "Mini Typing Notifications (MTN)", dissect_aim_msg_minityping }, { 0, NULL, NULL } }; /* Register the protocol with Ethereal */ void proto_register_aim_messaging(void) { /* Setup list of header fields */ static hf_register_info hf[] = { { &hf_aim_icbm_channel, { "Channel to setup", "aim.icbm.channel", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL }, }, { &hf_aim_icbm_msg_flags, { "Message Flags", "aim.icbm.flags", FT_UINT32, BASE_HEX, NULL, 0x0, "", HFILL }, }, { &hf_aim_icbm_max_snac_size, { "Max SNAC Size", "aim.icbm.max_snac", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL }, }, { &hf_aim_icbm_max_sender_warnlevel, { "Max sender warn level", "aim.icbm.max_sender_warn-level", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL }, }, { &hf_aim_icbm_max_receiver_warnlevel, { "max receiver warn level", "aim.icbm.max_receiver_warnlevel", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL }, }, { &hf_aim_icbm_min_msg_interval, { "Minimum message interval (seconds)", "aim.icbm.min_msg_interval", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL }, }, { &hf_aim_icbm_unknown, { "Unknown parameter", "aim.icbm.unknown", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL }, }, { &hf_aim_icbm_cookie, { "ICBM Cookie", "aim.messaging.icbmcookie", FT_BYTES, BASE_HEX, NULL, 0x0, "", HFILL } }, { &hf_aim_message_channel_id, { "Message Channel ID", "aim.messaging.channelid", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL } }, { &hf_aim_icbm_evil, { "Send Evil Bit As", "aim.evilreq.origin", FT_UINT16, BASE_DEC, VALS(evil_origins), 0x0, "", HFILL }, }, { &hf_aim_evil_warn_level, { "Old warning level", "aim.evil.warn_level", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }, }, { &hf_aim_evil_new_warn_level, { "New warning level", "aim.evil.new_warn_level", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }, }, { &hf_aim_icbm_notification_cookie, { "Notification Cookie", "aim.notification.cookie", FT_BYTES, BASE_DEC, NULL, 0x0, "", HFILL }, }, { &hf_aim_icbm_notification_channel, { "Notification Channel", "aim.notification.channel", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }, }, { &hf_aim_icbm_notification_type, { "Notification Type", "aim.notification.type", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }, }, { &hf_aim_rendezvous_msg_type, { "Message Type", "aim.rendezvous.msg_type", FT_UINT16, BASE_HEX, VALS(rendezvous_msg_types), 0x0, "", HFILL }, }, }; /* Setup protocol subtree array */ static gint *ett[] = { &ett_aim_messaging, &ett_aim_rendezvous_data, }; /* Register the protocol name and description */ proto_aim_messaging = proto_register_protocol("AIM Messaging", "AIM Messaging", "aim_messaging"); /* Required function calls to register the header fields and subtrees used */ proto_register_field_array(proto_aim_messaging, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); } void proto_reg_handoff_aim_messaging(void) { aim_init_family(proto_aim_messaging, ett_aim_messaging, FAMILY_MESSAGING, aim_fnac_family_messaging); }