forked from osmocom/wireshark
![Guy Harris](/assets/img/avatar_default.png)
as the description - some aim_tlv tables have NULL in the end-of-table entry. For those that don't, replace "Unknown" with NULL; "Unknown" is now redundant. svn path=/trunk/; revision=13084
192 lines
5.4 KiB
C
192 lines
5.4 KiB
C
/* packet-aim-signon.c
|
|
* Routines for AIM Instant Messenger (OSCAR) dissection, SNAC Signon
|
|
* Copyright 2004, Jelmer Vernooij <jelmer@samba.org>
|
|
* Copyright 2000, Ralf Hoelzer <ralf@well.com>
|
|
*
|
|
* $Id$
|
|
*
|
|
* Ethereal - Network traffic analyzer
|
|
* By Gerald Combs <gerald@ethereal.com>
|
|
* 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 <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <ctype.h>
|
|
|
|
#include <glib.h>
|
|
|
|
#include <epan/packet.h>
|
|
#include <epan/strutil.h>
|
|
|
|
#include "packet-aim.h"
|
|
|
|
#define FAMILY_SIGNON 0x0017
|
|
|
|
|
|
/* Initialize the protocol and registered fields */
|
|
static int proto_aim_signon = -1;
|
|
static int hf_aim_infotype = -1;
|
|
static int hf_aim_signon_challenge_len = -1;
|
|
static int hf_aim_signon_challenge = -1;
|
|
|
|
|
|
/* Initialize the subtree pointers */
|
|
static gint ett_aim_signon = -1;
|
|
|
|
static int dissect_aim_snac_signon_logon(tvbuff_t *tvb, packet_info *pinfo,
|
|
proto_tree *tree)
|
|
{
|
|
int offset = 0;
|
|
while (tvb_length_remaining(tvb, offset) > 0) {
|
|
offset = dissect_aim_tlv(tvb, pinfo, offset, tree, client_tlvs);
|
|
}
|
|
return offset;
|
|
}
|
|
|
|
static int dissect_aim_snac_signon_logon_reply(tvbuff_t *tvb,
|
|
packet_info *pinfo,
|
|
proto_tree *tree)
|
|
{
|
|
int offset = 0;
|
|
while (tvb_length_remaining(tvb, offset) > 0) {
|
|
offset = dissect_aim_tlv(tvb, pinfo, offset, tree, client_tlvs);
|
|
}
|
|
return offset;
|
|
}
|
|
|
|
static int dissect_aim_snac_signon_signon(tvbuff_t *tvb, packet_info *pinfo,
|
|
proto_tree *tree)
|
|
{
|
|
guint8 buddyname_length = 0;
|
|
int offset = 0;
|
|
char buddyname[MAX_BUDDYNAME_LENGTH + 1];
|
|
|
|
/* Info Type */
|
|
proto_tree_add_item(tree, hf_aim_infotype, tvb, offset, 2, FALSE);
|
|
offset += 2;
|
|
|
|
/* Unknown */
|
|
offset += 1;
|
|
|
|
/* Buddy Name */
|
|
buddyname_length = aim_get_buddyname( buddyname, tvb, offset, offset + 1 );
|
|
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, " Username: %s",
|
|
format_text(buddyname, buddyname_length));
|
|
}
|
|
|
|
if(tree) {
|
|
offset+=dissect_aim_buddyname(tvb, pinfo, offset, tree);
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
static int dissect_aim_snac_signon_signon_reply(tvbuff_t *tvb,
|
|
packet_info *pinfo _U_,
|
|
proto_tree *tree)
|
|
{
|
|
int offset = 0;
|
|
guint16 challenge_length = 0;
|
|
|
|
/* Logon Challenge Length */
|
|
challenge_length = tvb_get_ntohs(tvb, offset);
|
|
proto_tree_add_item(tree, hf_aim_signon_challenge_len, tvb, offset, 2, FALSE);
|
|
offset += 2;
|
|
|
|
/* Challenge */
|
|
proto_tree_add_item(tree, hf_aim_signon_challenge, tvb, offset, challenge_length, FALSE);
|
|
offset += challenge_length;
|
|
return offset;
|
|
}
|
|
|
|
static int dissect_aim_tlv_value_registration(proto_item *ti _U_, guint16 value_id _U_, tvbuff_t *tvb _U_, packet_info *pinfo _U_)
|
|
{
|
|
/* FIXME */
|
|
return 0;
|
|
}
|
|
|
|
#define REG_TLV_REGISTRATION_INFO 0x0001
|
|
|
|
static const aim_tlv registration_tlvs[] = {
|
|
{ REG_TLV_REGISTRATION_INFO, "Registration Info", dissect_aim_tlv_value_registration },
|
|
{ 0, NULL, NULL },
|
|
};
|
|
|
|
static int dissect_aim_snac_register (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
return dissect_aim_tlv(tvb, pinfo, 0, tree, registration_tlvs);
|
|
}
|
|
|
|
static const aim_subtype aim_fnac_family_signon[] = {
|
|
{ 0x0001, "Error", dissect_aim_snac_error },
|
|
{ 0x0002, "Logon", dissect_aim_snac_signon_logon },
|
|
{ 0x0003, "Logon Reply", dissect_aim_snac_signon_logon_reply },
|
|
{ 0x0004, "Request UIN", dissect_aim_snac_register },
|
|
{ 0x0005, "New UIN response", dissect_aim_snac_register },
|
|
{ 0x0006, "Sign-on", dissect_aim_snac_signon_signon },
|
|
{ 0x0007, "Sign-on Reply", dissect_aim_snac_signon_signon_reply },
|
|
{ 0x000a, "Server SecureID Request", NULL },
|
|
{ 0x000b, "Client SecureID Reply", NULL },
|
|
{ 0, NULL, NULL }
|
|
};
|
|
|
|
|
|
/* Register the protocol with Ethereal */
|
|
void
|
|
proto_register_aim_signon(void)
|
|
{
|
|
|
|
/* Setup list of header fields */
|
|
static hf_register_info hf[] = {
|
|
{ &hf_aim_infotype,
|
|
{ "Infotype", "aim.infotype", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL }
|
|
},
|
|
{ &hf_aim_signon_challenge_len,
|
|
{ "Signon challenge length", "aim.signon.challengelen", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }
|
|
},
|
|
{ &hf_aim_signon_challenge,
|
|
{ "Signon challenge", "aim.signon.challenge", FT_STRING, BASE_HEX, NULL, 0x0, "", HFILL }
|
|
},
|
|
};
|
|
|
|
/* Setup protocol subtree array */
|
|
static gint *ett[] = {
|
|
&ett_aim_signon,
|
|
};
|
|
|
|
/* Register the protocol name and description */
|
|
proto_aim_signon = proto_register_protocol("AIM Signon", "AIM Signon", "aim_signon");
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
|
proto_register_field_array(proto_aim_signon, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_aim_signon(void)
|
|
{
|
|
aim_init_family(proto_aim_signon, ett_aim_signon, FAMILY_SIGNON, aim_fnac_family_signon);
|
|
}
|