2004-03-23 06:21:18 +00:00
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/* packet-aim-signon.c
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* Routines for AIM Instant Messenger (OSCAR) dissection, SNAC Signon
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* Copyright 2004, Jelmer Vernooij <jelmer@samba.org>
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* Copyright 2000, Ralf Hoelzer <ralf@well.com>
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*
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2004-07-18 00:24:25 +00:00
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* $Id$
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2004-03-23 06:21:18 +00:00
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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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#define FAMILY_SIGNON 0x0017
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/* Family Signon */
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#define FAMILY_SIGNON_ERROR 0x0001
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#define FAMILY_SIGNON_LOGON 0x0002
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#define FAMILY_SIGNON_LOGON_REPLY 0x0003
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#define FAMILY_SIGNON_UIN_REQ 0x0004
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#define FAMILY_SIGNON_UIN_REPL 0x0005
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#define FAMILY_SIGNON_SIGNON 0x0006
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#define FAMILY_SIGNON_SIGNON_REPLY 0x0007
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#define FAMILY_SIGNON_S_SECUREID_REQ 0x000a
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#define FAMILY_SIGNON_C_SECUREID_REP 0x000b
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static const value_string aim_fnac_family_signon[] = {
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{ FAMILY_SIGNON_LOGON, "Logon" },
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{ FAMILY_SIGNON_LOGON_REPLY, "Logon Reply" },
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{ FAMILY_SIGNON_UIN_REQ, "Request UIN" },
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{ FAMILY_SIGNON_UIN_REPL, "New UIN response" },
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{ FAMILY_SIGNON_SIGNON, "Sign-on" },
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{ FAMILY_SIGNON_SIGNON_REPLY, "Sign-on Reply" },
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{ FAMILY_SIGNON_S_SECUREID_REQ, "Server SecureID Request" },
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{ FAMILY_SIGNON_C_SECUREID_REP, "Client SecureID Reply" },
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{ 0, NULL }
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};
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static int dissect_aim_snac_signon(tvbuff_t *tvb, packet_info *pinfo,
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proto_tree *tree);
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static int dissect_aim_snac_signon_logon(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *tree);
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static int dissect_aim_snac_signon_logon_reply(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *tree);
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static int dissect_aim_snac_signon_signon(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *tree);
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static int dissect_aim_snac_signon_signon_reply(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *tree);
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/* Initialize the protocol and registered fields */
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static int proto_aim_signon = -1;
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static int hf_aim_infotype = -1;
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static int hf_aim_signon_challenge_len = -1;
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static int hf_aim_signon_challenge = -1;
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/* Initialize the subtree pointers */
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static gint ett_aim_signon = -1;
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static int dissect_aim_snac_signon(tvbuff_t *tvb, packet_info *pinfo,
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proto_tree *tree)
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{
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struct aiminfo *aiminfo = pinfo->private_data;
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int offset = 0;
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2004-04-26 18:21:10 +00:00
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proto_item *ti = NULL;
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proto_tree *signon_tree = NULL;
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if(tree) {
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ti = proto_tree_add_text(tree, tvb, 0, -1,"AIM Signon");
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signon_tree = proto_item_add_subtree(ti, ett_aim_signon);
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}
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2004-03-23 06:21:18 +00:00
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switch(aiminfo->subtype)
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{
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case FAMILY_SIGNON_ERROR:
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2004-04-26 18:21:10 +00:00
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return dissect_aim_snac_error(tvb, pinfo, offset, signon_tree);
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2004-03-23 06:21:18 +00:00
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case FAMILY_SIGNON_LOGON:
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2004-04-26 18:21:10 +00:00
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return dissect_aim_snac_signon_logon(tvb, pinfo, offset, signon_tree);
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2004-03-23 06:21:18 +00:00
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case FAMILY_SIGNON_LOGON_REPLY:
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2004-04-26 18:21:10 +00:00
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return dissect_aim_snac_signon_logon_reply(tvb, pinfo, offset, signon_tree);
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2004-03-23 06:21:18 +00:00
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case FAMILY_SIGNON_SIGNON:
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2004-04-26 18:21:10 +00:00
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return dissect_aim_snac_signon_signon(tvb, pinfo, offset, signon_tree);
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2004-03-23 06:21:18 +00:00
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case FAMILY_SIGNON_SIGNON_REPLY:
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2004-04-26 18:21:10 +00:00
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return dissect_aim_snac_signon_signon_reply(tvb, pinfo, offset, signon_tree);
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case FAMILY_SIGNON_S_SECUREID_REQ:
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/* No data */
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return 0;
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2004-03-23 06:21:18 +00:00
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case FAMILY_SIGNON_UIN_REQ:
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case FAMILY_SIGNON_UIN_REPL:
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case FAMILY_SIGNON_C_SECUREID_REP:
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/*FIXME*/
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default:
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return 0;
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}
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}
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static int dissect_aim_snac_signon_logon(tvbuff_t *tvb, packet_info *pinfo,
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int offset, proto_tree *tree)
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{
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while (tvb_length_remaining(tvb, offset) > 0) {
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2004-04-26 18:21:10 +00:00
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offset = dissect_aim_tlv(tvb, pinfo, offset, tree, client_tlvs);
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2004-03-23 06:21:18 +00:00
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}
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return offset;
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}
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static int dissect_aim_snac_signon_logon_reply(tvbuff_t *tvb,
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packet_info *pinfo,
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int offset, proto_tree *tree)
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{
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if (check_col(pinfo->cinfo, COL_INFO))
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col_append_fstr(pinfo->cinfo, COL_INFO, ", Login information reply");
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while (tvb_length_remaining(tvb, offset) > 0) {
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2004-04-26 18:21:10 +00:00
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offset = dissect_aim_tlv(tvb, pinfo, offset, tree, client_tlvs);
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2004-03-23 06:21:18 +00:00
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}
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return offset;
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}
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static int dissect_aim_snac_signon_signon(tvbuff_t *tvb, packet_info *pinfo,
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int offset, 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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/* Info Type */
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proto_tree_add_item(tree, hf_aim_infotype, tvb, offset, 2, FALSE);
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offset += 2;
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/* Unknown */
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offset += 1;
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/* Buddy Name */
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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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2004-06-16 07:51:21 +00:00
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col_append_fstr(pinfo->cinfo, COL_INFO, " Username: %s",
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format_text(buddyname, buddyname_length));
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2004-03-23 06:21:18 +00:00
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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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2004-06-16 07:51:21 +00:00
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"Screen Name: %s",
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format_text(buddyname, buddyname_length));
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2004-03-23 06:21:18 +00:00
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}
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offset += buddyname_length + 1;
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return offset;
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}
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static int dissect_aim_snac_signon_signon_reply(tvbuff_t *tvb,
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packet_info *pinfo,
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int offset, proto_tree *tree)
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{
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guint16 challenge_length = 0;
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if (check_col(pinfo->cinfo, COL_INFO))
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col_append_fstr(pinfo->cinfo, COL_INFO, ", Sign-on reply");
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/* Logon Challenge Length */
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challenge_length = tvb_get_ntohs(tvb, offset);
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proto_tree_add_item(tree, hf_aim_signon_challenge_len, tvb, offset, 2, FALSE);
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offset += 2;
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/* Challenge */
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proto_tree_add_item(tree, hf_aim_signon_challenge, tvb, offset, challenge_length, FALSE);
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offset += challenge_length;
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return offset;
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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_signon(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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2004-04-11 20:47:58 +00:00
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{ &hf_aim_infotype,
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{ "Infotype", "aim.infotype", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL }
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},
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2004-03-23 06:21:18 +00:00
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{ &hf_aim_signon_challenge_len,
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{ "Signon challenge length", "aim.signon.challengelen", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }
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},
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{ &hf_aim_signon_challenge,
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{ "Signon challenge", "aim.signon.challenge", FT_STRING, BASE_HEX, 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_signon,
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};
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/* Register the protocol name and description */
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proto_aim_signon = proto_register_protocol("AIM Signon", "AIM Signon", "aim_signon");
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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_signon, 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_signon(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_signon, proto_aim_signon);
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dissector_add("aim.family", FAMILY_SIGNON, aim_handle);
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aim_init_family(FAMILY_SIGNON, "Signon", aim_fnac_family_signon);
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}
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