211 lines
6.5 KiB
C
211 lines
6.5 KiB
C
/* packet-aim-buddylist.c
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* Routines for AIM Instant Messenger (OSCAR) dissection, SNAC Buddylist
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* Copyright 2004, Jelmer Vernooij <jelmer@samba.org>
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*
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* $Id: packet-aim-buddylist.c,v 1.1 2004/03/23 06:21:16 guy Exp $
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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 "packet-aim.h"
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#include "prefs.h"
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#define FAMILY_BUDDYLIST 0x0003
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/* Family Buddy List */
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#define FAMILY_BUDDYLIST_ERROR 0x0001
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#define FAMILY_BUDDYLIST_REQRIGHTS 0x0002
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#define FAMILY_BUDDYLIST_RIGHTSINFO 0x0003
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#define FAMILY_BUDDYLIST_ADDBUDDY 0x0004
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#define FAMILY_BUDDYLIST_REMBUDDY 0x0005
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#define FAMILY_BUDDYLIST_WATCHERS_REQ 0x0006
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#define FAMILY_BUDDYLIST_WATCHERS_REP 0x0007
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#define FAMILY_BUDDYLIST_REJECT 0x000a
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#define FAMILY_BUDDYLIST_ONCOMING 0x000b
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#define FAMILY_BUDDYLIST_OFFGOING 0x000c
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#define FAMILY_BUDDYLIST_DEFAULT 0xffff
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static const value_string aim_fnac_family_buddylist[] = {
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{ FAMILY_BUDDYLIST_ERROR, "Error" },
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{ FAMILY_BUDDYLIST_REQRIGHTS, "Request Rights" },
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{ FAMILY_BUDDYLIST_RIGHTSINFO, "Rights Info" },
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{ FAMILY_BUDDYLIST_ADDBUDDY, "Add Buddy" },
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{ FAMILY_BUDDYLIST_REMBUDDY, "Remove Buddy" },
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{ FAMILY_BUDDYLIST_REJECT, "Reject Buddy" },
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{ FAMILY_BUDDYLIST_ONCOMING, "Oncoming Buddy" },
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{ FAMILY_BUDDYLIST_OFFGOING, "Offgoing Buddy" },
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{ FAMILY_BUDDYLIST_DEFAULT, "Buddy Default" },
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{ 0, NULL }
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};
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/* Initialize the protocol and registered fields */
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static int proto_aim_buddylist = -1;
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static int hf_aim_buddyname_len = -1;
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static int hf_aim_buddyname = -1;
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static int hf_aim_userinfo_warninglevel = -1;
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static int hf_aim_userinfo_tlvcount = -1;
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/* Initialize the subtree pointers */
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static gint ett_aim_buddylist = -1;
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static int dissect_aim_snac_buddylist(tvbuff_t *tvb, packet_info *pinfo,
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proto_tree *tree)
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{
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guint8 buddyname_length = 0;
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char buddyname[MAX_BUDDYNAME_LENGTH + 1];
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guint16 tlv_count = 0;
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struct aiminfo *aiminfo = pinfo->private_data;
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int offset = 0;
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switch(aiminfo->subtype)
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{
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case FAMILY_BUDDYLIST_REQRIGHTS:
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case FAMILY_BUDDYLIST_WATCHERS_REQ:
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/* No data */
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return 0;
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case FAMILY_BUDDYLIST_ERROR:
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return dissect_aim_snac_error(tvb, pinfo, offset, tree);
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case FAMILY_BUDDYLIST_RIGHTSINFO:
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case FAMILY_BUDDYLIST_ADDBUDDY:
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case FAMILY_BUDDYLIST_REMBUDDY:
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case FAMILY_BUDDYLIST_WATCHERS_REP:
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case FAMILY_BUDDYLIST_REJECT:
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/* FIXME */
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return 0;
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case FAMILY_BUDDYLIST_ONCOMING:
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buddyname_length = aim_get_buddyname( buddyname, tvb, offset, offset + 1 );
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if (check_col(pinfo->cinfo, COL_INFO)) {
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col_add_fstr(pinfo->cinfo, COL_INFO, "Oncoming Buddy");
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col_append_fstr(pinfo->cinfo, COL_INFO, ": %s", buddyname);
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}
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if (tree) {
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proto_tree_add_text(tree, tvb, offset + 1, buddyname_length,
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"Screen Name: %s", buddyname);
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}
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offset += buddyname_length + 1;
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/* Warning level */
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proto_tree_add_item(tree, hf_aim_userinfo_warninglevel, tvb, offset,
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2, FALSE);
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offset += 2;
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/* TLV Count */
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tlv_count = tvb_get_ntohs(tvb, offset);
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proto_tree_add_item(tree, hf_aim_userinfo_tlvcount, tvb, offset,
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2, FALSE);
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offset += 2;
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while (tvb_length_remaining(tvb, offset) > 0) {
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offset = dissect_aim_tlv_buddylist(tvb, pinfo, offset, tree);
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}
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return offset;
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case FAMILY_BUDDYLIST_OFFGOING:
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buddyname_length = aim_get_buddyname( buddyname, tvb, offset, offset + 1 );
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if (check_col(pinfo->cinfo, COL_INFO)) {
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col_add_fstr(pinfo->cinfo, COL_INFO, "Offgoing Buddy");
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col_append_fstr(pinfo->cinfo, COL_INFO, ": %s", buddyname);
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}
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if (tree) {
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proto_tree_add_text(tree, tvb, offset + 1, buddyname_length,
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"Screen Name: %s", buddyname);
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}
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offset += buddyname_length + 1;
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/* Warning level */
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proto_tree_add_item(tree, hf_aim_userinfo_warninglevel, tvb, offset,
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2, FALSE);
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offset += 2;
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/* TLV Count */
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tlv_count = tvb_get_ntohs(tvb, offset);
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proto_tree_add_item(tree, hf_aim_userinfo_tlvcount, tvb, offset,
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2, FALSE);
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offset += 2;
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return offset;
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default:
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return 0;
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}
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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_buddylist(void)
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{
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/* Setup list of header fields */
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static hf_register_info hf[] = {
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{ &hf_aim_buddyname_len,
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{ "Buddyname len", "aim.buddynamelen", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL }
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},
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{ &hf_aim_buddyname,
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{ "Buddy Name", "aim.buddyname", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL }
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},
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{ &hf_aim_userinfo_warninglevel,
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{ "Warning Level", "aim.userinfo.warninglevel", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL },
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},
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{ &hf_aim_userinfo_tlvcount,
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{ "TLV Count", "aim.userinfo.tlvcount", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL },
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},
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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_buddylist,
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};
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/* Register the protocol name and description */
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proto_aim_buddylist = proto_register_protocol("AIM Buddylist Service", "AIM/Buddylist", "aim_buddylist");
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/* Required function calls to register the header fields and subtrees used */
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proto_register_field_array(proto_aim_buddylist, 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_buddylist(void)
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{
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dissector_handle_t aim_handle;
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aim_handle = new_create_dissector_handle(dissect_aim_snac_buddylist, proto_aim_buddylist);
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dissector_add("aim.family", FAMILY_BUDDYLIST, aim_handle);
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aim_init_family(FAMILY_BUDDYLIST, "Buddylist", aim_fnac_family_buddylist);
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}
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