forked from osmocom/wireshark
![Olivier Biot](/assets/img/avatar_default.png)
application ID zero is a valid application ID (it is often used as experimental applciation ID). By default, the preference is disabled. Fix the XML dictionary parser so it skips comment lines too. svn path=/trunk/; revision=10320
1925 lines
56 KiB
C
1925 lines
56 KiB
C
/* packet-diameter.c
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* Routines for Diameter packet disassembly
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*
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* $Id: packet-diameter.c,v 1.62 2004/03/05 22:25:23 obiot Exp $
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*
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* Copyright (c) 2001 by David Frascone <dave@frascone.com>
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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 <errno.h>
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#include <ctype.h>
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#include <time.h>
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#include <glib.h>
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#include <epan/filesystem.h>
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#include "xmlstub.h"
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#include <epan/packet.h>
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#include <epan/resolv.h>
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#include "report_err.h"
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#include "prefs.h"
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#include "packet-tcp.h"
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#ifdef NEED_SNPRINTF_H
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# include "snprintf.h"
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#endif
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/* This must be defined before we include packet-diameter-defs.h */
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/* Valid data types */
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typedef enum {
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/* Base Types */
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DIAMETER_OCTET_STRING = 1,
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DIAMETER_INTEGER32,
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DIAMETER_INTEGER64,
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DIAMETER_UNSIGNED32,
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DIAMETER_UNSIGNED64,
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DIAMETER_FLOAT32,
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DIAMETER_FLOAT64,
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DIAMETER_FLOAT128,
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DIAMETER_GROUPED,
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/* Derived Types */
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DIAMETER_IP_ADDRESS, /* OctetString */
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DIAMETER_TIME, /* Integer 32 */
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DIAMETER_UTF8STRING, /* OctetString */
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DIAMETER_IDENTITY, /* OctetString */
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DIAMETER_ENUMERATED, /* Integer 32 */
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DIAMETER_IP_FILTER_RULE, /* OctetString */
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DIAMETER_QOS_FILTER_RULE, /* OctetString */
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DIAMETER_MIP_REG_REQ, /* OctetString */
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DIAMETER_VENDOR_ID, /* Integer32 */
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DIAMETER_APPLICATION_ID
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} diameterDataType;
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static value_string TypeValues[]={
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{ DIAMETER_OCTET_STRING, "OctetString" },
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{ DIAMETER_INTEGER32, "Integer32" },
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{ DIAMETER_INTEGER64, "Integer64" },
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{ DIAMETER_UNSIGNED32, "Unsigned32" },
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{ DIAMETER_UNSIGNED64, "Unsigned64" },
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{ DIAMETER_FLOAT32, "Float32" },
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{ DIAMETER_FLOAT64, "Float64" },
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{ DIAMETER_FLOAT128, "Float128" },
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{ DIAMETER_GROUPED, "Grouped" },
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{ DIAMETER_IP_ADDRESS, "IpAddress" },
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{ DIAMETER_TIME, "Time" },
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{ DIAMETER_UTF8STRING, "UTF8String" },
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{ DIAMETER_IDENTITY, "DiameterIdentity" },
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{ DIAMETER_ENUMERATED, "Enumerated" },
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{ DIAMETER_IP_FILTER_RULE, "IPFilterRule" },
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{ DIAMETER_QOS_FILTER_RULE, "QOSFilterRule" },
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{ DIAMETER_MIP_REG_REQ, "MIPRegistrationRequest"},
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{ DIAMETER_VENDOR_ID, "VendorId"},
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{ DIAMETER_APPLICATION_ID, "AppId"},
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{0, (char *)NULL}
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};
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typedef struct value_name {
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guint32 value;
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gchar *name;
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struct value_name *next;
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} ValueName;
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typedef struct old_avp_info {
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guint32 code;
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gchar *name;
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diameterDataType type;
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value_string *values;
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} oldAvpInfo;
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typedef struct avp_info {
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guint32 code;
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gchar *name;
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gchar *vendorName;
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diameterDataType type;
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ValueName *values;
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struct avp_info *next;
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} avpInfo;
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typedef struct command_code {
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guint32 code;
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gchar *name;
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gchar *vendorName;
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struct command_code *next;
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} CommandCode;
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typedef struct vendor_id {
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guint32 id;
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gchar *name;
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gchar *longName;
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struct vendor_id *next;
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} VendorId;
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typedef struct application_id {
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guint32 id;
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gchar *name;
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struct application_id *next;
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} ApplicationId;
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static avpInfo *avpListHead=NULL;
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static VendorId *vendorListHead=NULL;
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static CommandCode *commandListHead=NULL;
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static ApplicationId *ApplicationIdHead=NULL;
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#include "packet-diameter-defs.h"
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#define NTP_TIME_DIFF (2208988800UL)
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#define TCP_PORT_DIAMETER 1812
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#define SCTP_PORT_DIAMETER 1812
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static const true_false_string reserved_set = {
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"*** Error! Reserved Bit is Set",
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"Ok"
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};
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static int proto_diameter = -1;
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static int hf_diameter_length = -1;
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static int hf_diameter_code = -1;
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static int hf_diameter_hopbyhopid =-1;
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static int hf_diameter_endtoendid =-1;
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static int hf_diameter_version = -1;
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static int hf_diameter_vendor_id = -1;
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static int hf_diameter_flags = -1;
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static int hf_diameter_flags_request = -1;
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static int hf_diameter_flags_proxyable = -1;
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static int hf_diameter_flags_error = -1;
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static int hf_diameter_flags_reserved3 = -1;
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static int hf_diameter_flags_reserved4 = -1;
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static int hf_diameter_flags_reserved5 = -1;
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static int hf_diameter_flags_reserved6 = -1;
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static int hf_diameter_flags_reserved7 = -1;
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static int hf_diameter_avp_code = -1;
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static int hf_diameter_avp_length = -1;
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static int hf_diameter_avp_flags = -1;
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static int hf_diameter_avp_flags_vendor_specific = -1;
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static int hf_diameter_avp_flags_mandatory = -1;
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static int hf_diameter_avp_flags_protected = -1;
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static int hf_diameter_avp_flags_reserved3 = -1;
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static int hf_diameter_avp_flags_reserved4 = -1;
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static int hf_diameter_avp_flags_reserved5 = -1;
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static int hf_diameter_avp_flags_reserved6 = -1;
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static int hf_diameter_avp_flags_reserved7 = -1;
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static int hf_diameter_avp_vendor_id = -1;
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static int hf_diameter_avp_data_uint32 = -1;
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static int hf_diameter_avp_data_int32 = -1;
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static int hf_diameter_avp_data_uint64 = -1;
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static int hf_diameter_avp_data_int64 = -1;
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static int hf_diameter_avp_data_bytes = -1;
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static int hf_diameter_avp_data_string = -1;
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static int hf_diameter_avp_data_v4addr = -1;
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static int hf_diameter_avp_data_v6addr = -1;
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static int hf_diameter_avp_data_time = -1;
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static gint ett_diameter = -1;
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static gint ett_diameter_flags = -1;
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static gint ett_diameter_avp = -1;
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static gint ett_diameter_avp_flags = -1;
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static gint ett_diameter_avpinfo = -1;
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static guint gbl_diameterTcpPort=TCP_PORT_DIAMETER;
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static guint gbl_diameterSctpPort=SCTP_PORT_DIAMETER;
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/* desegmentation of Diameter over TCP */
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static gboolean gbl_diameter_desegment = TRUE;
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/* Allow zero as a valid application ID */
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static gboolean allow_zero_as_app_id = FALSE;
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#define DICT_FN "diameter/dictionary.xml"
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static gchar *gbl_diameterDictionary;
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typedef struct _e_diameterhdr {
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guint32 versionLength;
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guint32 flagsCmdCode;
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guint32 vendorId;
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guint32 hopByHopId;
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guint32 endToEndId;
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} e_diameterhdr;
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typedef struct _e_avphdr {
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guint32 avp_code;
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guint32 avp_flagsLength;
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guint32 avp_vendorId; /* optional */
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} e_avphdr;
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/* Diameter Header Flags */
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/* RPrrrrrrCCCCCCCCCCCCCCCCCCCCCCCC */
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#define DIAM_FLAGS_R 0x80
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#define DIAM_FLAGS_P 0x40
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#define DIAM_FLAGS_E 0x20
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#define DIAM_FLAGS_RESERVED3 0x10
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#define DIAM_FLAGS_RESERVED4 0x08
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#define DIAM_FLAGS_RESERVED5 0x04
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#define DIAM_FLAGS_RESERVED6 0x02
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#define DIAM_FLAGS_RESERVED7 0x01
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#define DIAM_FLAGS_RESERVED 0x1f
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#define DIAM_LENGTH_MASK 0x00ffffffl
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#define DIAM_COMMAND_MASK DIAM_LENGTH_MASK
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#define DIAM_GET_FLAGS(dh) ((dh.flagsCmdCode & ~DIAM_COMMAND_MASK) >> 24)
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#define DIAM_GET_VERSION(dh) ((dh.versionLength & (~DIAM_LENGTH_MASK)) >> 24)
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#define DIAM_GET_COMMAND(dh) (dh.flagsCmdCode & DIAM_COMMAND_MASK)
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#define DIAM_GET_LENGTH(dh) (dh.versionLength & DIAM_LENGTH_MASK)
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/* Diameter AVP Flags */
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#define AVP_FLAGS_P 0x20
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#define AVP_FLAGS_V 0x80
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#define AVP_FLAGS_M 0x40
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#define AVP_FLAGS_RESERVED3 0x10
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#define AVP_FLAGS_RESERVED4 0x08
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#define AVP_FLAGS_RESERVED5 0x04
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#define AVP_FLAGS_RESERVED6 0x02
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#define AVP_FLAGS_RESERVED7 0x01
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#define AVP_FLAGS_RESERVED 0x1f /* 00011111 -- V M P X X X X X */
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#define MIN_AVP_SIZE (sizeof(e_avphdr) - sizeof(guint32))
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#define MIN_DIAMETER_SIZE (sizeof(e_diameterhdr))
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static void dissect_avps(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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/*
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* This routine will do a push-parse of the passed in
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* filename. This was taken almost verbatum from
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* the xmlsoft examples.
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*/
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static xmlDocPtr
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xmlParseFilePush( char *filename, int checkValid) {
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FILE *f;
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xmlDocPtr doc=NULL;
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int valid=0;
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int res, size = 1024;
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char chars[1024];
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xmlParserCtxtPtr ctxt;
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/* I wonder what kind of a performance hit this is? */
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*XmlStub.xmlDoValidityCheckingDefaultValue = checkValid;
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f = fopen(filename, "r");
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if (f == NULL) {
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report_open_failure(filename, errno, FALSE);
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return NULL;
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}
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res = fread(chars, 1, 4, f);
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if (res > 0) {
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ctxt = XmlStub.xmlCreatePushParserCtxt(NULL, NULL,
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chars, res, filename);
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while ((res = fread(chars, 1, size-1, f)) > 0) {
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XmlStub.xmlParseChunk(ctxt, chars, res, 0);
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}
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XmlStub.xmlParseChunk(ctxt, chars, 0, 1);
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doc = ctxt->myDoc;
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valid=ctxt->valid;
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XmlStub.xmlFreeParserCtxt(ctxt);
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}
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fclose(f);
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/* Check valid */
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if (!valid) {
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g_warning( "Error! Invalid xml in %s! Failed DTD check!",
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filename);
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return NULL;
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}
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return doc;
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} /* xmlParseFilePush */
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/*
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* This routine will add a static avp to the avp list. It is
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* only called when the XML dictionary fails to load properly.
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*/
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static int
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addStaticAVP(int code, gchar *name, diameterDataType type, value_string *values)
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{
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avpInfo *entry;
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ValueName *vEntry=NULL;
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int i;
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/* Parse our values array, if we have one */
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if (values) {
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for (i=0; values[i].strptr != NULL; i++) {
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ValueName *ve = NULL;
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ve = g_malloc(sizeof(ValueName));
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ve->name = strdup(values[i].strptr);
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ve->value = values[i].value;
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ve->next = vEntry;
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vEntry = ve;
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}
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} /* if values */
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/* And, create the entry */
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entry = (avpInfo *)g_malloc(sizeof(avpInfo));
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entry->name = g_strdup(name);
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entry->code = code;
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entry->vendorName = NULL;
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entry->type = type;
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entry->values = vEntry;
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if (vEntry)
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entry->type = DIAMETER_INTEGER32;
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/* And, add it to the list */
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entry->next = avpListHead;
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avpListHead = entry;
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return (0);
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} /* addStaticAVP */
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/*
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* This routine will parse an XML avp entry, and add it to our
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* avp list. If any values are present in the avp, it will
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* add them too.
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*/
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static int
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xmlParseAVP(xmlNodePtr cur)
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{
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char *name=NULL, *description=NULL, *code=NULL, *mayEncrypt=NULL,
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*mandatory=NULL, *protected=NULL, *vendorBit=NULL, *vendorName = NULL,
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*constrained=NULL;
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char *type=NULL;
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avpInfo *entry;
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guint32 avpType=0;
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ValueName *vEntry=NULL;
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int i;
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/* First, get our properties */
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name = XmlStub.xmlGetProp(cur, "name");
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description = XmlStub.xmlGetProp(cur, "description");
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code = XmlStub.xmlGetProp(cur, "code");
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mayEncrypt = XmlStub.xmlGetProp(cur, "may-encrypt");
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mandatory = XmlStub.xmlGetProp(cur, "mandatory");
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protected = XmlStub.xmlGetProp(cur, "protected");
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vendorBit = XmlStub.xmlGetProp(cur, "vendor-bit");
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vendorName = XmlStub.xmlGetProp(cur, "vendor-id");
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constrained = XmlStub.xmlGetProp(cur, "constrained");
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cur = cur->xmlChildrenNode;
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while (cur != NULL ) {
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if (strcasecmp(cur->name, "type") == 0) {
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type = XmlStub.xmlGetProp(cur, "type-name");
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} else if (strcasecmp(cur->name, "enum") == 0) {
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char *valueName=NULL, *valueCode=NULL;
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ValueName *ve = NULL;
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valueName = XmlStub.xmlGetProp(cur, "name");
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valueCode = XmlStub.xmlGetProp(cur, "code");
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if (!valueName || !valueCode) {
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g_warning( "Error, bad value on avp %s", name);
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return (-1);
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}
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ve = g_malloc(sizeof(ValueName));
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ve->name = strdup(valueName);
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ve->value = atol(valueCode);
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ve->next = vEntry;
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vEntry = ve;
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} else if (strcasecmp(cur->name, "grouped") == 0) {
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/* WORK Recurse here for grouped AVPs */
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type = "grouped";
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}
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cur=cur->next;
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} /* while */
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/*
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* Check for the AVP Type.
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*/
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if (type) {
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for (i = 0; TypeValues[i].strptr; i++) {
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if (!strcasecmp(type, TypeValues[i].strptr)) {
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avpType = TypeValues[i].value;
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break;
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}
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}
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if (TypeValues[i].strptr == NULL) {
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g_warning( "Invalid Type field in dictionary! avp %s (%s)", name, type);
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return (-1);
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}
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} else if (!vEntry) {
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g_warning("Missing type/enum field in dictionary avpName=%s",
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name);
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return (-1);
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}
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/* WORK - Handle flags -- for validation later */
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|
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/* And, create the entry */
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entry = (avpInfo *)g_malloc(sizeof(avpInfo));
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entry->name = g_strdup(name);
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entry->code = atol(code);
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if (vendorName)
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entry->vendorName = g_strdup(vendorName);
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else
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entry->vendorName = NULL;
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entry->type = avpType;
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entry->values = vEntry;
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if (vEntry)
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entry->type = DIAMETER_INTEGER32;
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/* And, add it to the list */
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entry->next = avpListHead;
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avpListHead = entry;
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return (0);
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} /* xmlParseAVP */
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/*
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* This routine will add a command to the list of commands.
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*/
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static int
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addCommand(int code, char *name, char *vendorId)
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{
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CommandCode *entry;
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/*
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* Allocate the memory required for the dictionary.
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*/
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entry = (CommandCode *) g_malloc(sizeof (CommandCode));
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if (entry == NULL) {
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g_warning("Unable to allocate memory");
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return (-1);
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}
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/*
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* Allocate memory for the AVPName and copy the name to the
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* structure
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*/
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entry->name = g_strdup(name);
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entry->code = code;
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if (vendorId)
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entry->vendorName = g_strdup(vendorId);
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else
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entry->vendorName = "None";
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/* Add the entry to the list */
|
|
entry->next = commandListHead;
|
|
commandListHead = entry;
|
|
|
|
return 0;
|
|
} /* addCommand */
|
|
|
|
/*
|
|
* This routine will parse the XML command, and add it to our
|
|
* list of commands.
|
|
*/
|
|
static int
|
|
xmlParseCommand(xmlNodePtr cur)
|
|
{
|
|
char *name, *code, *vendorIdString;
|
|
|
|
/*
|
|
* Get the Attributes
|
|
*/
|
|
name = XmlStub.xmlGetProp(cur, "name");
|
|
code = XmlStub.xmlGetProp(cur, "code");
|
|
if (!name || !code) {
|
|
g_warning("Invalid command. Name or code missing!");
|
|
return -1;
|
|
}
|
|
vendorIdString = XmlStub.xmlGetProp(cur, "vendor-id");
|
|
|
|
if (!vendorIdString || !strcasecmp(vendorIdString, "None")) {
|
|
vendorIdString = NULL;
|
|
}
|
|
|
|
return (addCommand(atoi(code), name, vendorIdString));
|
|
} /* xmlParseCommand */
|
|
|
|
/* This routine adds an application to the name<-> id table */
|
|
static int
|
|
dictionaryAddApplication(char *name, int id)
|
|
{
|
|
ApplicationId *entry;
|
|
|
|
if (!name || (id < 0) || (id == 0 && !allow_zero_as_app_id)) {
|
|
g_warning( "Diameter Error: Invalid application (name=%p, id=%d)",
|
|
name, id);
|
|
return (-1);
|
|
} /* Sanity Checks */
|
|
|
|
entry = g_malloc(sizeof(ApplicationId));
|
|
if (!entry) {
|
|
g_warning( "Unable to allocate memory");
|
|
return (-1);
|
|
}
|
|
|
|
entry->name = g_strdup(name);
|
|
entry->id = id;
|
|
|
|
/* Add it to the list */
|
|
entry->next = ApplicationIdHead;
|
|
ApplicationIdHead = entry;
|
|
|
|
return 0;
|
|
} /* dictionaryAddApplication */
|
|
|
|
/*
|
|
* This routine will add a vendor to the vendors list
|
|
*/
|
|
static int
|
|
addVendor(int id, gchar *name, gchar *longName)
|
|
{
|
|
VendorId *vendor;
|
|
|
|
/* add entry */
|
|
vendor=g_malloc(sizeof(VendorId));
|
|
if (!vendor) {
|
|
return (-1);
|
|
}
|
|
|
|
vendor->id = id;
|
|
vendor->name = g_strdup(name);
|
|
vendor->longName = g_strdup(longName);
|
|
vendor->next = vendorListHead;
|
|
vendorListHead = vendor;
|
|
|
|
return 0;
|
|
} /* addVendor */
|
|
|
|
/*
|
|
* This routine will pars in a XML vendor entry.
|
|
*/
|
|
static int
|
|
xmlParseVendor(xmlNodePtr cur)
|
|
{
|
|
char *name=NULL, *code=NULL, *id=NULL;
|
|
|
|
/* First, get our properties */
|
|
id = XmlStub.xmlGetProp(cur, "vendor-id");
|
|
name = XmlStub.xmlGetProp(cur, "name");
|
|
code = XmlStub.xmlGetProp(cur, "code");
|
|
|
|
if (!id || !name || !code) {
|
|
g_warning( "Invalid vendor section. vendor-id, name, and code must be specified");
|
|
return -1;
|
|
}
|
|
|
|
return (addVendor(atoi(code), id, name));
|
|
} /* addVendor */
|
|
|
|
/*
|
|
* This routine will either parse in the base protocol, or an application.
|
|
*/
|
|
static int
|
|
xmlDictionaryParseSegment(xmlNodePtr cur, int base)
|
|
{
|
|
if (!base) {
|
|
char *name;
|
|
char *id;
|
|
|
|
/* Add our application */
|
|
id = XmlStub.xmlGetProp(cur, "id");
|
|
name = XmlStub.xmlGetProp(cur, "name");
|
|
|
|
if (!name || !id) {
|
|
/* ERROR!!! */
|
|
g_warning("Diameter: Invalid application!: name=\"%s\", id=\"%s\"",
|
|
name?name:"NULL", id?id:"NULL");
|
|
return -1;
|
|
}
|
|
|
|
/* Add the application */
|
|
if (dictionaryAddApplication(name, atol(id)) != 0) {
|
|
/* ERROR! */
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Get segment values
|
|
*/
|
|
cur = cur->xmlChildrenNode;
|
|
while (cur != NULL) {
|
|
if (strcasecmp(cur->name, "avp") == 0) {
|
|
/* we have an avp!!! */
|
|
xmlParseAVP(cur);
|
|
} else if (strcasecmp(cur->name, "vendor") == 0) {
|
|
/* we have a vendor */
|
|
xmlParseVendor(cur);
|
|
/* For now, ignore typedefn and text */
|
|
} else if (strcasecmp(cur->name, "command") == 0) {
|
|
/* Found a command */
|
|
xmlParseCommand(cur);
|
|
} else if (strcasecmp(cur->name, "text") == 0) {
|
|
} else if (strcasecmp(cur->name, "comment") == 0) {
|
|
} else if (strcasecmp(cur->name, "typedefn") == 0) {
|
|
/* WORK -- parse in valid types . . . */
|
|
} else {
|
|
/* IF we got here, we're an error */
|
|
g_warning("Error! expecting an avp or a typedefn (got \"%s\")",
|
|
cur->name);
|
|
return (-1);
|
|
}
|
|
cur = cur->next;
|
|
} /* while */
|
|
return 0;
|
|
} /* xmlDictionaryParseSegment */
|
|
|
|
/*
|
|
* The main xml parse routine. This will walk through an XML
|
|
* dictionary that has been parsed by libxml.
|
|
*/
|
|
static int
|
|
xmlDictionaryParse(xmlNodePtr cur)
|
|
{
|
|
/* We should expect a base protocol, followed by multiple applications */
|
|
while (cur != NULL) {
|
|
if (strcasecmp(cur->name, "base") == 0) {
|
|
/* Base protocol. Descend and parse */
|
|
xmlDictionaryParseSegment(cur, 1);
|
|
} else if (strcasecmp(cur->name, "application") == 0) {
|
|
/* Application. Descend and parse */
|
|
xmlDictionaryParseSegment(cur, 0);
|
|
} else if (strcasecmp(cur->name, "text") == 0) {
|
|
/* Ignore text */
|
|
} else if (strcasecmp(cur->name, "comment") == 0) {
|
|
/* Ignore text */
|
|
} else {
|
|
g_warning( "Diameter: XML Expecting a base or an application (got \"%s\")",
|
|
cur->name);
|
|
return (-1);
|
|
}
|
|
cur = cur->next;
|
|
}
|
|
|
|
return 0;
|
|
|
|
} /* xmlDictionaryParse */
|
|
|
|
/*
|
|
* This routine will call libxml to parse in the dictionary.
|
|
*/
|
|
static int
|
|
loadXMLDictionary(void)
|
|
{
|
|
xmlDocPtr doc;
|
|
xmlNodePtr cur;
|
|
|
|
/*
|
|
* build an XML tree from a the file;
|
|
*/
|
|
XmlStub.xmlKeepBlanksDefault(0); /* Strip leading and trailing blanks */
|
|
XmlStub.xmlSubstituteEntitiesDefault(1); /* Substitute entities automagically */
|
|
doc = xmlParseFilePush(gbl_diameterDictionary, 1); /* Parse the XML (do validity checks)*/
|
|
|
|
/* Check for invalid xml */
|
|
if (doc == NULL) {
|
|
g_warning("Diameter: Unable to parse xmldictionary %s",
|
|
gbl_diameterDictionary);
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* Check the document is of the right kind
|
|
*/
|
|
cur = XmlStub.xmlDocGetRootElement(doc);
|
|
if (cur == NULL) {
|
|
g_warning("Diameter: Error: \"%s\": empty document",
|
|
gbl_diameterDictionary);
|
|
XmlStub.xmlFreeDoc(doc);
|
|
return -1;
|
|
}
|
|
if (XmlStub.xmlStrcmp(cur->name, (const xmlChar *) "dictionary")) {
|
|
g_warning("Diameter: Error: \"%s\": document of the wrong type, root node != dictionary",
|
|
gbl_diameterDictionary);
|
|
XmlStub.xmlFreeDoc(doc);
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* Ok, the dictionary has been parsed by libxml, and is valid.
|
|
* All we have to do now is read in our information.
|
|
*/
|
|
if (xmlDictionaryParse(cur->xmlChildrenNode) != 0) {
|
|
/* Error has already been printed */
|
|
return -1;
|
|
}
|
|
|
|
/* Once we're done parsing, free up the xml memory */
|
|
XmlStub.xmlFreeDoc(doc);
|
|
|
|
return 0;
|
|
|
|
} /* loadXMLDictionary */
|
|
|
|
/*
|
|
* Fallback routine. In the event of ANY error when loading the XML
|
|
* dictionary, this routine will populate the new avp list structures
|
|
* with the old static data from packet-diameter-defs.h
|
|
*/
|
|
static void
|
|
initializeDictionaryDefaults(void)
|
|
{
|
|
int i;
|
|
|
|
/* Add static vendors to list */
|
|
for(i=0; diameter_vendor_specific_vendors[i].strptr; i++) {
|
|
addVendor(diameter_vendor_specific_vendors[i].value,
|
|
diameter_vendor_specific_vendors[i].strptr,
|
|
diameter_vendor_specific_vendors[i].strptr);
|
|
}
|
|
/* Add static commands to list. */
|
|
for(i=0; diameter_command_code_vals[i].strptr; i++) {
|
|
addCommand(diameter_command_code_vals[i].value,
|
|
diameter_command_code_vals[i].strptr, NULL);
|
|
}
|
|
|
|
/* Add static AVPs to list */
|
|
for (i=0; old_diameter_avps[i].name; i++) {
|
|
addStaticAVP(old_diameter_avps[i].code,
|
|
old_diameter_avps[i].name,
|
|
old_diameter_avps[i].type,
|
|
old_diameter_avps[i].values);
|
|
}
|
|
|
|
} /* initializeDictionaryDefaults */
|
|
|
|
/*
|
|
* This routine will attempt to load the XML dictionary, and on
|
|
* failure, will call initializeDictionaryDefaults to load in
|
|
* our static dictionary.
|
|
*/
|
|
static void
|
|
initializeDictionary(void)
|
|
{
|
|
/*
|
|
* Using ugly ordering here. If loadLibXML succeeds, then
|
|
* loadXMLDictionary will be called. This is one of the few times when
|
|
* I think this is prettier than the nested if alternative.
|
|
*/
|
|
if (loadLibXML() ||
|
|
(loadXMLDictionary() != 0)) {
|
|
/* Something failed. Use the static dictionary */
|
|
g_warning("Diameter: Using static dictionary! (Unable to use XML)");
|
|
initializeDictionaryDefaults();
|
|
}
|
|
} /* initializeDictionary */
|
|
|
|
|
|
|
|
/*
|
|
* These routines manipulate the diameter structures.
|
|
*/
|
|
|
|
/* return vendor string, based on the id */
|
|
static gchar *
|
|
diameter_vendor_to_str(guint32 vendorId, gboolean longName) {
|
|
VendorId *probe;
|
|
static gchar buffer[64];
|
|
|
|
for (probe=vendorListHead; probe; probe=probe->next) {
|
|
if (vendorId == probe->id) {
|
|
if (longName)
|
|
return probe->longName;
|
|
else
|
|
return probe->name;
|
|
}
|
|
}
|
|
|
|
snprintf(buffer, sizeof(buffer),
|
|
"Vendor 0x%08x", vendorId);
|
|
return buffer;
|
|
} /*diameter_vendor_to_str */
|
|
|
|
/* return command string, based on the code */
|
|
static gchar *
|
|
diameter_command_to_str(guint32 commandCode, guint32 vendorId)
|
|
{
|
|
CommandCode *probe;
|
|
static gchar buffer[64];
|
|
gchar *vendorName=NULL;
|
|
|
|
if (vendorId)
|
|
vendorName = diameter_vendor_to_str(vendorId, FALSE);
|
|
|
|
for (probe=commandListHead; probe; probe=probe->next) {
|
|
if (commandCode == probe->code) {
|
|
if (vendorId) {
|
|
/* g_warning("Command: Comparing \"%s\" to \"%s\"", */
|
|
/* vendorName?vendorName:"(null)", */
|
|
/* probe->vendorName?probe->vendorName:"(null)"); */
|
|
/* Now check the vendor name */
|
|
if (!strcmp(vendorName, probe->vendorName))
|
|
/* We found it */
|
|
return probe->name;
|
|
} else {
|
|
/* With no vendor id, the Command's entry should be "None" */
|
|
if (!strcmp(probe->vendorName, "None")) {
|
|
/* We found it */
|
|
return probe->name;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
g_warning("Diameter: Unable to find name for command code 0x%08x, Vendor \"%u\"!",
|
|
commandCode, vendorId);
|
|
snprintf(buffer, sizeof(buffer),
|
|
"Cmd-0x%08x", commandCode);
|
|
return buffer;
|
|
}/*diameter_command_to_str */
|
|
|
|
/* return application string, based on the id */
|
|
static gchar *
|
|
diameter_app_to_str(guint32 vendorId) {
|
|
ApplicationId *probe;
|
|
static gchar buffer[64];
|
|
|
|
for (probe=ApplicationIdHead; probe; probe=probe->next) {
|
|
if (vendorId == probe->id) {
|
|
return probe->name;
|
|
}
|
|
}
|
|
|
|
snprintf(buffer, sizeof(buffer),
|
|
"AppId 0x%08x", vendorId);
|
|
return buffer;
|
|
} /*diameter_app_to_str */
|
|
|
|
/* return an avp type, based on the code */
|
|
static diameterDataType
|
|
diameter_avp_get_type(guint32 avpCode, guint32 vendorId){
|
|
avpInfo *probe;
|
|
gchar *vendorName=NULL;
|
|
|
|
if (vendorId)
|
|
vendorName = diameter_vendor_to_str(vendorId, FALSE);
|
|
|
|
for (probe=avpListHead; probe; probe=probe->next) {
|
|
if (avpCode == probe->code) {
|
|
|
|
if (vendorId) {
|
|
/* g_warning("AvpType: Comparing \"%s\" to \"%s\"", */
|
|
/* vendorName?vendorName:"(null)", */
|
|
/* probe->vendorName?probe->vendorName:"(null)"); */
|
|
/* Now check the vendor name */
|
|
if (probe->vendorName && (!strcmp(vendorName, probe->vendorName)))
|
|
/* We found it! */
|
|
return probe->type;
|
|
} else {
|
|
/* No Vendor ID -- vendorName should be null */
|
|
if (!probe->vendorName)
|
|
/* We found it! */
|
|
return probe->type;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* If we don't find it, assume it's data */
|
|
g_warning("Diameter: Unable to find type for avpCode %u, Vendor %u!", avpCode,
|
|
vendorId);
|
|
return DIAMETER_OCTET_STRING;
|
|
} /* diameter_avp_get_type */
|
|
|
|
/* return an avp name from the code */
|
|
static gchar *
|
|
diameter_avp_get_name(guint32 avpCode, guint32 vendorId)
|
|
{
|
|
static gchar buffer[64];
|
|
avpInfo *probe;
|
|
gchar *vendorName=NULL;
|
|
|
|
if (vendorId)
|
|
vendorName = diameter_vendor_to_str(vendorId, FALSE);
|
|
|
|
for (probe=avpListHead; probe; probe=probe->next) {
|
|
if (avpCode == probe->code) {
|
|
if (vendorId) {
|
|
/* g_warning("AvpName: Comparing \"%s\" to \"%s\"", */
|
|
/* vendorName?vendorName:"(null)", */
|
|
/* probe->vendorName?probe->vendorName:"(null)"); */
|
|
/* Now check the vendor name */
|
|
if (probe->vendorName && (!strcmp(vendorName, probe->vendorName)))
|
|
/* We found it! */
|
|
return probe->name;
|
|
} else {
|
|
/* No Vendor ID -- vendorName should be null */
|
|
if (!probe->vendorName)
|
|
/* We found it! */
|
|
return probe->name;
|
|
}
|
|
}
|
|
}
|
|
|
|
g_warning("Diameter: Unable to find name for AVP 0x%08x, Vendor %u!",
|
|
avpCode, vendorId);
|
|
|
|
/* If we don't find it, build a name string */
|
|
sprintf(buffer, "Unknown AVP:0x%08x", avpCode);
|
|
return buffer;
|
|
} /* diameter_avp_get_name */
|
|
static gchar *
|
|
diameter_avp_get_value(guint32 avpCode, guint32 vendorId, guint32 avpValue)
|
|
{
|
|
static gchar buffer[64];
|
|
|
|
avpInfo *probe;
|
|
gchar *vendorName=NULL;
|
|
|
|
if (vendorId)
|
|
vendorName = diameter_vendor_to_str(vendorId, FALSE);
|
|
|
|
for (probe=avpListHead; probe; probe=probe->next) {
|
|
if (avpCode == probe->code) {
|
|
if (vendorId) {
|
|
/* g_warning("AvpValue: Comparing \"%s\" to \"%s\"", */
|
|
/* vendorName?vendorName:"(null)", */
|
|
/* probe->vendorName?probe->vendorName:"(null)"); */
|
|
/* Now check the vendor name */
|
|
if (probe->vendorName && (!strcmp(vendorName, probe->vendorName))) {
|
|
ValueName *vprobe;
|
|
for(vprobe=probe->values; vprobe; vprobe=vprobe->next) {
|
|
if (avpValue == vprobe->value) {
|
|
return vprobe->name;
|
|
}
|
|
}
|
|
sprintf(buffer, "Unknown Value: 0x%08x", avpValue);
|
|
return buffer;
|
|
}
|
|
} else {
|
|
if (!probe->vendorName) {
|
|
ValueName *vprobe;
|
|
for(vprobe=probe->values; vprobe; vprobe=vprobe->next) {
|
|
if (avpValue == vprobe->value) {
|
|
return vprobe->name;
|
|
}
|
|
}
|
|
sprintf(buffer, "Unknown Value: 0x%08x", avpValue);
|
|
return buffer;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/* If we don't find the avp, build a value string */
|
|
sprintf(buffer, "Unknown AVP! Value: 0x%08x", avpValue);
|
|
return buffer;
|
|
} /* diameter_avp_get_value */
|
|
|
|
|
|
/* Code to actually dissect the packets */
|
|
|
|
static gboolean
|
|
check_diameter(tvbuff_t *tvb)
|
|
{
|
|
if (!tvb_bytes_exist(tvb, 0, 1))
|
|
return FALSE; /* not enough bytes to check the version */
|
|
if (tvb_get_guint8(tvb, 0) != 1)
|
|
return FALSE; /* not version 1 */
|
|
|
|
/* XXX - fetch length and make sure it's at least MIN_DIAMETER_SIZE?
|
|
Fetch flags and check that none of the DIAM_FLAGS_RESERVED bits
|
|
are set? */
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* Main dissector
|
|
*/
|
|
static void
|
|
dissect_diameter_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
|
|
/* Set up structures needed to add the protocol subtree and manage it */
|
|
proto_item *ti;
|
|
proto_item *tf;
|
|
proto_tree *flags_tree;
|
|
tvbuff_t *avp_tvb;
|
|
proto_tree *diameter_tree;
|
|
e_diameterhdr dh;
|
|
int offset=0;
|
|
size_t avplength;
|
|
proto_tree *avp_tree;
|
|
proto_item *avptf;
|
|
int BadPacket = FALSE;
|
|
guint32 commandCode, pktLength;
|
|
guint8 version, flags;
|
|
gchar flagstr[64] = "<None>";
|
|
gchar *fstr[] = {"RSVD7", "RSVD6", "RSVD5", "RSVD4", "RSVD3", "Error", "Proxyable", "Request" };
|
|
gchar commandString[64], vendorName[64];
|
|
gint i;
|
|
guint bpos;
|
|
static int initialized=FALSE;
|
|
|
|
/*
|
|
* Only parse in dictionary if there are diameter packets to
|
|
* dissect.
|
|
*/
|
|
if (!initialized) {
|
|
/* Read in our dictionary, if it exists. */
|
|
initializeDictionary();
|
|
initialized=TRUE;
|
|
}
|
|
|
|
/* Make entries in Protocol column and Info column on summary display */
|
|
if (check_col(pinfo->cinfo, COL_PROTOCOL))
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "Diameter");
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
/* Copy our header */
|
|
tvb_memcpy(tvb, (guint8*) &dh, offset, sizeof(dh));
|
|
|
|
/* Fix byte ordering in our static structure */
|
|
dh.versionLength = g_ntohl(dh.versionLength);
|
|
dh.flagsCmdCode = g_ntohl(dh.flagsCmdCode);
|
|
dh.vendorId = g_ntohl(dh.vendorId);
|
|
dh.hopByHopId = g_ntohl(dh.hopByHopId);
|
|
dh.endToEndId = g_ntohl(dh.endToEndId);
|
|
|
|
if (dh.vendorId) {
|
|
strcpy(vendorName,
|
|
diameter_vendor_to_str(dh.vendorId, TRUE));
|
|
} else {
|
|
strcpy(vendorName, "None");
|
|
}
|
|
|
|
|
|
/* Do the bit twiddling */
|
|
version = DIAM_GET_VERSION(dh);
|
|
pktLength = DIAM_GET_LENGTH(dh);
|
|
flags = DIAM_GET_FLAGS(dh);
|
|
commandCode = DIAM_GET_COMMAND(dh);
|
|
|
|
/* Set up our flags */
|
|
if (check_col(pinfo->cinfo, COL_INFO) || tree) {
|
|
flagstr[0]=0;
|
|
for (i = 0; i < 8; i++) {
|
|
bpos = 1 << i;
|
|
if (flags & bpos) {
|
|
if (flagstr[0]) {
|
|
strcat(flagstr, ", ");
|
|
}
|
|
strcat(flagstr, fstr[i]);
|
|
}
|
|
}
|
|
if (strlen(flagstr) == 0) {
|
|
strcpy(flagstr,"<None>");
|
|
}
|
|
}
|
|
|
|
/* Set up our commandString */
|
|
strcpy(commandString, diameter_command_to_str(commandCode, dh.vendorId));
|
|
if (flags & DIAM_FLAGS_R)
|
|
strcat(commandString, "-Request");
|
|
else
|
|
strcat(commandString, "-Answer");
|
|
|
|
/* Short packet. Should have at LEAST one avp */
|
|
if (pktLength < MIN_DIAMETER_SIZE) {
|
|
g_warning("Diameter: Packet too short: %u bytes less than min size (%lu bytes))",
|
|
pktLength, (unsigned long)MIN_DIAMETER_SIZE);
|
|
BadPacket = TRUE;
|
|
}
|
|
|
|
/* And, check our reserved flags/version */
|
|
if ((flags & DIAM_FLAGS_RESERVED) ||
|
|
(version != 1)) {
|
|
g_warning("Diameter: Bad packet: Bad Flags(0x%x) or Version(%u)",
|
|
flags, version);
|
|
BadPacket = TRUE;
|
|
}
|
|
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
col_add_fstr(pinfo->cinfo, COL_INFO,
|
|
"%s%s%s%s%s vendor=%s (hop-id=%u) (end-id=%u) RPE=%d%d%d",
|
|
(BadPacket)?"***** Bad Packet!: ":"",
|
|
(flags & DIAM_FLAGS_P)?"Proxyable ":"",
|
|
(flags & DIAM_FLAGS_E)?" Error":"",
|
|
((BadPacket ||
|
|
(flags & (DIAM_FLAGS_P|DIAM_FLAGS_E))) ?
|
|
": " : ""),
|
|
commandString, vendorName,
|
|
dh.hopByHopId, dh.endToEndId,
|
|
(flags & DIAM_FLAGS_R)?1:0,
|
|
(flags & DIAM_FLAGS_P)?1:0,
|
|
(flags & DIAM_FLAGS_E)?1:0);
|
|
}
|
|
|
|
|
|
/* In the interest of speed, if "tree" is NULL, don't do any work not
|
|
necessary to generate protocol tree items. */
|
|
if (tree) {
|
|
|
|
/* create display subtree for the protocol */
|
|
ti = proto_tree_add_item(tree, proto_diameter, tvb, offset,
|
|
MAX(pktLength,MIN_DIAMETER_SIZE), FALSE);
|
|
diameter_tree = proto_item_add_subtree(ti, ett_diameter);
|
|
|
|
/* Version */
|
|
proto_tree_add_uint(diameter_tree,
|
|
hf_diameter_version,
|
|
tvb, offset, 1,
|
|
version);
|
|
|
|
offset+=1;
|
|
|
|
/* Length */
|
|
proto_tree_add_uint(diameter_tree,
|
|
hf_diameter_length, tvb,
|
|
offset, 3, pktLength);
|
|
offset += 3;
|
|
|
|
/* Flags */
|
|
tf = proto_tree_add_uint_format(diameter_tree, hf_diameter_flags, tvb,
|
|
offset , 1, flags, "Flags: 0x%02x (%s)", flags,
|
|
flagstr);
|
|
flags_tree = proto_item_add_subtree(tf, ett_diameter_avp_flags);
|
|
proto_tree_add_boolean(flags_tree, hf_diameter_flags_request, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_diameter_flags_proxyable, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_diameter_flags_error, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_diameter_flags_reserved3, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_diameter_flags_reserved4, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_diameter_flags_reserved5, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_diameter_flags_reserved6, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_diameter_flags_reserved7, tvb, offset, 1, flags);
|
|
|
|
offset += 1;
|
|
|
|
/* Command Code */
|
|
proto_tree_add_uint_format(diameter_tree, hf_diameter_code,
|
|
tvb, offset, 3, commandCode, "Command Code: %s", commandString);
|
|
offset += 3;
|
|
|
|
/* Vendor Id */
|
|
proto_tree_add_uint_format(diameter_tree,hf_diameter_vendor_id,
|
|
tvb, offset, 4, dh.vendorId, "Vendor-Id: %s", vendorName);
|
|
offset += 4;
|
|
|
|
/* Hop-by-hop Identifier */
|
|
proto_tree_add_uint(diameter_tree, hf_diameter_hopbyhopid,
|
|
tvb, offset, 4, dh.hopByHopId);
|
|
offset += 4;
|
|
|
|
/* End-to-end Identifier */
|
|
proto_tree_add_uint(diameter_tree, hf_diameter_endtoendid,
|
|
tvb, offset, 4, dh.endToEndId);
|
|
offset += 4;
|
|
|
|
/* If we have a bad packet, don't bother trying to parse the AVPs */
|
|
if (BadPacket) {
|
|
return;
|
|
}
|
|
|
|
/* Start looking at the AVPS */
|
|
/* Make the next tvbuff */
|
|
|
|
/* Update the lengths */
|
|
avplength= pktLength - sizeof(e_diameterhdr);
|
|
|
|
avp_tvb = tvb_new_subset(tvb, offset, avplength, avplength);
|
|
avptf = proto_tree_add_text(diameter_tree,
|
|
tvb, offset, avplength,
|
|
"Attribute Value Pairs");
|
|
|
|
avp_tree = proto_item_add_subtree(avptf,
|
|
ett_diameter_avp);
|
|
if (avp_tree != NULL) {
|
|
dissect_avps( avp_tvb, pinfo, avp_tree);
|
|
}
|
|
return;
|
|
}
|
|
} /* dissect_diameter_common */
|
|
|
|
|
|
static guint
|
|
get_diameter_pdu_len(tvbuff_t *tvb, int offset)
|
|
{
|
|
/* Get the length of the Diameter packet. */
|
|
return tvb_get_ntoh24(tvb, offset + 1);
|
|
}
|
|
|
|
static int
|
|
dissect_diameter(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
if (!check_diameter(tvb))
|
|
return 0;
|
|
dissect_diameter_common(tvb, pinfo, tree);
|
|
return tvb_length(tvb);
|
|
}
|
|
|
|
static int
|
|
dissect_diameter_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
if (!check_diameter(tvb))
|
|
return 0;
|
|
tcp_dissect_pdus(tvb, pinfo, tree, gbl_diameter_desegment, 4,
|
|
get_diameter_pdu_len, dissect_diameter_common);
|
|
return tvb_length(tvb);
|
|
} /* dissect_diameter_tcp */
|
|
|
|
/*
|
|
* Call the mip_dissector, after saving our pinfo variables
|
|
* so it doesn't write to our column display.
|
|
*/
|
|
static void
|
|
safe_dissect_mip(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
|
|
size_t offset, size_t length)
|
|
{
|
|
static dissector_handle_t mip_handle;
|
|
static int mipInitialized=FALSE;
|
|
tvbuff_t *mip_tvb;
|
|
address save_dl_src;
|
|
address save_dl_dst;
|
|
address save_net_src;
|
|
address save_net_dst;
|
|
address save_src;
|
|
address save_dst;
|
|
gboolean save_in_error_pkt;
|
|
|
|
if (!mipInitialized) {
|
|
mip_handle = find_dissector("mip");
|
|
mipInitialized=TRUE;
|
|
}
|
|
|
|
mip_tvb = tvb_new_subset(tvb, offset,
|
|
MIN(length, tvb_length(tvb)-offset),
|
|
length);
|
|
|
|
/* The contained packet is a MIP registration request;
|
|
dissect it with the MIP dissector. */
|
|
col_set_writable(pinfo->cinfo, FALSE);
|
|
|
|
/* Also, save the current values of the addresses, and restore
|
|
them when we're finished dissecting the contained packet, so
|
|
that the address columns in the summary don't reflect the
|
|
contained packet, but reflect this packet instead. */
|
|
save_dl_src = pinfo->dl_src;
|
|
save_dl_dst = pinfo->dl_dst;
|
|
save_net_src = pinfo->net_src;
|
|
save_net_dst = pinfo->net_dst;
|
|
save_src = pinfo->src;
|
|
save_dst = pinfo->dst;
|
|
save_in_error_pkt = pinfo->in_error_pkt;
|
|
|
|
call_dissector(mip_handle, mip_tvb, pinfo, tree);
|
|
|
|
/* Restore the "we're inside an error packet" flag. */
|
|
pinfo->in_error_pkt = save_in_error_pkt;
|
|
pinfo->dl_src = save_dl_src;
|
|
pinfo->dl_dst = save_dl_dst;
|
|
pinfo->net_src = save_net_src;
|
|
pinfo->net_dst = save_net_dst;
|
|
pinfo->src = save_src;
|
|
pinfo->dst = save_dst;
|
|
|
|
|
|
} /* safe_dissect_mip */
|
|
|
|
/*
|
|
* This function will dissect the AVPs in a diameter packet. It handles
|
|
* all normal types, and even recursively calls itself for grouped AVPs
|
|
*/
|
|
static void dissect_avps(tvbuff_t *tvb, packet_info *pinfo, proto_tree *avp_tree)
|
|
{
|
|
/* adds the attribute value pairs to the tree */
|
|
e_avphdr avph;
|
|
gchar avpTypeString[64];
|
|
gchar avpNameString[64];
|
|
gchar *valstr;
|
|
guint32 vendorId=0;
|
|
gchar vendorName[64];
|
|
int hdrLength;
|
|
int fixAmt;
|
|
proto_tree *avpi_tree;
|
|
size_t offset = 0;
|
|
tvbuff_t *group_tvb;
|
|
proto_tree *group_tree;
|
|
proto_item *grouptf;
|
|
proto_item *avptf;
|
|
char buffer[1024];
|
|
int BadPacket = FALSE;
|
|
guint32 avpLength;
|
|
guint8 flags;
|
|
proto_item *tf;
|
|
proto_tree *flags_tree;
|
|
|
|
gint32 packetLength;
|
|
size_t avpDataLength;
|
|
int avpType;
|
|
gchar flagstr[64] = "<None>";
|
|
gchar *fstr[] = {"RSVD7", "RSVD6", "RSVD5", "RSVD4", "RSVD3", "Protected", "Mandatory", "Vendor-Specific" };
|
|
gint i;
|
|
guint bpos;
|
|
|
|
packetLength = tvb_length(tvb);
|
|
|
|
/* Check for invalid packet lengths */
|
|
if (packetLength <= 0) {
|
|
proto_tree_add_text(avp_tree, tvb, offset, tvb_length(tvb),
|
|
"No Attribute Value Pairs Found");
|
|
return;
|
|
}
|
|
|
|
/* Spin around until we run out of packet */
|
|
while (packetLength > 0 ) {
|
|
|
|
/* Check for short packet */
|
|
if (packetLength < (long)MIN_AVP_SIZE) {
|
|
g_warning("Diameter: AVP Payload too short: %d bytes less than min size (%ld bytes))",
|
|
packetLength, (long)MIN_AVP_SIZE);
|
|
BadPacket = TRUE;
|
|
/* Don't even bother trying to parse a short packet. */
|
|
return;
|
|
}
|
|
|
|
/* Copy our header */
|
|
tvb_memcpy(tvb, (guint8*) &avph, offset, MIN((long)sizeof(avph),packetLength));
|
|
|
|
/* Fix the byte ordering */
|
|
avph.avp_code = g_ntohl(avph.avp_code);
|
|
avph.avp_flagsLength = g_ntohl(avph.avp_flagsLength);
|
|
|
|
flags = (avph.avp_flagsLength & 0xff000000) >> 24;
|
|
avpLength = avph.avp_flagsLength & 0x00ffffff;
|
|
|
|
/* Set up our flags string */
|
|
if (check_col(pinfo->cinfo, COL_INFO) || avp_tree) {
|
|
flagstr[0]=0;
|
|
for (i = 0; i < 8; i++) {
|
|
bpos = 1 << i;
|
|
if (flags & bpos) {
|
|
if (flagstr[0]) {
|
|
strcat(flagstr, ", ");
|
|
}
|
|
strcat(flagstr, fstr[i]);
|
|
}
|
|
}
|
|
if (strlen(flagstr) == 0) {
|
|
strcpy(flagstr,"<None>");
|
|
}
|
|
}
|
|
|
|
/* Dissect our vendor id if it exists and set hdr length */
|
|
if (flags & AVP_FLAGS_V) {
|
|
vendorId = g_ntohl(avph.avp_vendorId);
|
|
/* Vendor id */
|
|
hdrLength = sizeof(e_avphdr);
|
|
} else {
|
|
/* No vendor */
|
|
hdrLength = sizeof(e_avphdr) -
|
|
sizeof(guint32);
|
|
vendorId = 0;
|
|
}
|
|
|
|
if (vendorId) {
|
|
strcpy(vendorName,
|
|
diameter_vendor_to_str(vendorId, TRUE));
|
|
} else {
|
|
vendorName[0]='\0';
|
|
}
|
|
|
|
/* Check for bad length */
|
|
if (avpLength < MIN_AVP_SIZE ||
|
|
((long)avpLength > packetLength)) {
|
|
g_warning("Diameter: AVP payload size invalid: avp_length: %ld bytes, "
|
|
"min: %ld bytes, packetLen: %d",
|
|
(long)avpLength, (long)MIN_AVP_SIZE,
|
|
packetLength);
|
|
BadPacket = TRUE;
|
|
}
|
|
|
|
/* Check for bad flags */
|
|
if (flags & AVP_FLAGS_RESERVED) {
|
|
g_warning("Diameter: Invalid AVP: Reserved bit set. flags = 0x%x,"
|
|
" resFl=0x%x",
|
|
flags, AVP_FLAGS_RESERVED);
|
|
/* For now, don't set bad packet, since I'm accidentally setting a wrong bit */
|
|
/* BadPacket = TRUE; */
|
|
}
|
|
|
|
/*
|
|
* Compute amount of byte-alignment fix (Diameter AVPs are sent on 4 byte
|
|
* boundries)
|
|
*/
|
|
fixAmt = 4 - (avpLength % 4);
|
|
if (fixAmt == 4) fixAmt = 0;
|
|
|
|
/* shrink our packetLength */
|
|
packetLength = packetLength - (avpLength + fixAmt);
|
|
|
|
/* Check for out of bounds */
|
|
if (packetLength < 0) {
|
|
g_warning("Diameter: Bad AVP: Bad new length (%d bytes) ",
|
|
packetLength);
|
|
BadPacket = TRUE;
|
|
}
|
|
|
|
/* Make avp Name & type */
|
|
strcpy(avpTypeString, val_to_str(diameter_avp_get_type(avph.avp_code,vendorId),
|
|
TypeValues,
|
|
"Unknown-Type: 0x%08x"));
|
|
strcpy(avpNameString, diameter_avp_get_name(avph.avp_code, vendorId));
|
|
|
|
avptf = proto_tree_add_text(avp_tree, tvb,
|
|
offset, avpLength + fixAmt,
|
|
"%s (%s) l:0x%x (%d bytes) (%d padded bytes)",
|
|
avpNameString, avpTypeString, avpLength,
|
|
avpLength, avpLength+fixAmt);
|
|
avpi_tree = proto_item_add_subtree(avptf,
|
|
ett_diameter_avpinfo);
|
|
|
|
if (avpi_tree !=NULL) {
|
|
/* Command Code */
|
|
proto_tree_add_uint_format(avpi_tree, hf_diameter_avp_code,
|
|
tvb, offset, 4, avph.avp_code, "AVP Code: %s", avpNameString);
|
|
offset += 4;
|
|
|
|
tf = proto_tree_add_uint_format(avpi_tree, hf_diameter_avp_flags, tvb,
|
|
offset , 1, flags, "Flags: 0x%02x (%s)", flags,
|
|
flagstr);
|
|
flags_tree = proto_item_add_subtree(tf, ett_diameter_avp_flags);
|
|
proto_tree_add_boolean(flags_tree, hf_diameter_avp_flags_vendor_specific, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_diameter_avp_flags_mandatory, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_diameter_avp_flags_protected, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_diameter_avp_flags_reserved3, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_diameter_avp_flags_reserved4, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_diameter_avp_flags_reserved5, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_diameter_avp_flags_reserved6, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_diameter_avp_flags_reserved7, tvb, offset, 1, flags);
|
|
offset += 1;
|
|
|
|
proto_tree_add_uint(avpi_tree, hf_diameter_avp_length,
|
|
tvb, offset, 3, avpLength);
|
|
offset += 3;
|
|
|
|
if (flags & AVP_FLAGS_V) {
|
|
proto_tree_add_uint_format(avpi_tree, hf_diameter_avp_vendor_id,
|
|
tvb, offset, 4, vendorId, vendorName);
|
|
offset += 4;
|
|
}
|
|
|
|
avpDataLength = avpLength - hdrLength;
|
|
|
|
/*
|
|
* If we've got a bad packet, just highlight the data. Don't try
|
|
* to parse it, and, don't move to next AVP.
|
|
*/
|
|
if (BadPacket) {
|
|
offset -= hdrLength;
|
|
proto_tree_add_bytes_format(avpi_tree, hf_diameter_avp_data_bytes,
|
|
tvb, offset, tvb_length(tvb) - offset,
|
|
tvb_get_ptr(tvb, offset, tvb_length(tvb) - offset),
|
|
"Bad AVP (Suspect Data Not Dissected)");
|
|
return;
|
|
}
|
|
|
|
avpType=diameter_avp_get_type(avph.avp_code,vendorId);
|
|
|
|
switch(avpType) {
|
|
case DIAMETER_GROUPED:
|
|
sprintf(buffer, "%s Grouped AVPs", avpNameString);
|
|
/* Recursively call ourselves */
|
|
grouptf = proto_tree_add_text(avpi_tree,
|
|
tvb, offset, tvb_length(tvb),
|
|
buffer);
|
|
|
|
group_tree = proto_item_add_subtree(grouptf,
|
|
ett_diameter_avp);
|
|
|
|
group_tvb = tvb_new_subset(tvb, offset,
|
|
MIN(avpDataLength, tvb_length(tvb)-offset), avpDataLength);
|
|
if (group_tree != NULL) {
|
|
dissect_avps( group_tvb, pinfo, group_tree);
|
|
}
|
|
break;
|
|
|
|
case DIAMETER_IDENTITY:
|
|
{
|
|
const guint8 *data;
|
|
|
|
data = tvb_get_ptr(tvb, offset, avpDataLength);
|
|
proto_tree_add_string_format(avpi_tree, hf_diameter_avp_data_string,
|
|
tvb, offset, avpDataLength, data,
|
|
"Identity: %*.*s",
|
|
(int)avpDataLength,
|
|
(int)avpDataLength, data);
|
|
}
|
|
break;
|
|
case DIAMETER_UTF8STRING:
|
|
{
|
|
const guint8 *data;
|
|
|
|
data = tvb_get_ptr(tvb, offset, avpDataLength);
|
|
proto_tree_add_string_format(avpi_tree, hf_diameter_avp_data_string,
|
|
tvb, offset, avpDataLength, data,
|
|
"UTF8String: %*.*s",
|
|
(int)avpDataLength,
|
|
(int)avpDataLength, data);
|
|
}
|
|
break;
|
|
case DIAMETER_IP_ADDRESS:
|
|
if (avpDataLength == 4) {
|
|
proto_tree_add_item(avpi_tree, hf_diameter_avp_data_v4addr,
|
|
tvb, offset, avpDataLength, FALSE);
|
|
} else if (avpDataLength == 16) {
|
|
proto_tree_add_item(avpi_tree, hf_diameter_avp_data_v6addr,
|
|
tvb, offset, avpDataLength, FALSE);
|
|
} else {
|
|
proto_tree_add_bytes_format(avpi_tree, hf_diameter_avp_data_bytes,
|
|
tvb, offset, avpDataLength,
|
|
tvb_get_ptr(tvb, offset, avpDataLength),
|
|
"Error! Bad Address Length");
|
|
}
|
|
break;
|
|
|
|
case DIAMETER_INTEGER32:
|
|
if (avpDataLength == 4) {
|
|
proto_tree_add_item(avpi_tree, hf_diameter_avp_data_int32,
|
|
tvb, offset, avpDataLength, FALSE);
|
|
} else {
|
|
proto_tree_add_bytes_format(avpi_tree, hf_diameter_avp_data_bytes,
|
|
tvb, offset, avpDataLength,
|
|
tvb_get_ptr(tvb, offset, avpDataLength),
|
|
"Error! Bad Integer32 Length");
|
|
}
|
|
break;
|
|
|
|
case DIAMETER_UNSIGNED32:
|
|
if (avpDataLength == 4) {
|
|
guint32 data;
|
|
|
|
data = tvb_get_ntohl(tvb, offset);
|
|
proto_tree_add_uint_format(avpi_tree, hf_diameter_avp_data_uint32,
|
|
tvb, offset, avpDataLength, data,
|
|
"Value: 0x%08x (%u)", data, data);
|
|
} else {
|
|
proto_tree_add_bytes_format(avpi_tree, hf_diameter_avp_data_bytes,
|
|
tvb, offset, avpDataLength,
|
|
tvb_get_ptr(tvb, offset, avpDataLength),
|
|
"Error! Bad Unsigned32 Length");
|
|
}
|
|
break;
|
|
|
|
case DIAMETER_INTEGER64:
|
|
if (avpDataLength == 8) {
|
|
proto_tree_add_item(avpi_tree, hf_diameter_avp_data_int64,
|
|
tvb, offset, 8, FALSE);
|
|
} else {
|
|
proto_tree_add_bytes_format(avpi_tree, hf_diameter_avp_data_bytes,
|
|
tvb, offset, avpDataLength,
|
|
tvb_get_ptr(tvb, offset, avpDataLength),
|
|
"Error! Bad Integer64 Length");
|
|
}
|
|
break;
|
|
|
|
case DIAMETER_UNSIGNED64:
|
|
if (avpDataLength == 8) {
|
|
proto_tree_add_item(avpi_tree, hf_diameter_avp_data_uint64,
|
|
tvb, offset, 8, FALSE);
|
|
} else {
|
|
proto_tree_add_bytes_format(avpi_tree, hf_diameter_avp_data_bytes,
|
|
tvb, offset, avpDataLength,
|
|
tvb_get_ptr(tvb, offset, avpDataLength),
|
|
"Error! Bad Unsigned64 Length");
|
|
}
|
|
break;
|
|
|
|
case DIAMETER_TIME:
|
|
if (avpDataLength == 4) {
|
|
nstime_t data;
|
|
gchar buffer[64];
|
|
struct tm *ltp;
|
|
|
|
data.secs = tvb_get_ntohl(tvb, offset);
|
|
data.secs -= NTP_TIME_DIFF;
|
|
data.nsecs = 0;
|
|
|
|
ltp = localtime(&data.secs);
|
|
strftime(buffer, 64,
|
|
"%a, %d %b %Y %H:%M:%S %z", ltp);
|
|
|
|
proto_tree_add_time_format(avpi_tree, hf_diameter_avp_data_time,
|
|
tvb, offset, avpDataLength, &data,
|
|
"Time: %s", buffer);
|
|
} else {
|
|
proto_tree_add_bytes_format(avpi_tree, hf_diameter_avp_data_bytes,
|
|
tvb, offset, avpDataLength,
|
|
tvb_get_ptr(tvb, offset, avpDataLength),
|
|
"Error! Bad Time Length");
|
|
}
|
|
break;
|
|
|
|
case DIAMETER_ENUMERATED:
|
|
if (avpDataLength == 4) {
|
|
guint32 data;
|
|
|
|
data = tvb_get_ntohl(tvb, offset);
|
|
valstr = diameter_avp_get_value(avph.avp_code, vendorId, data);
|
|
proto_tree_add_uint_format(avpi_tree, hf_diameter_avp_data_uint32,
|
|
tvb, offset, avpDataLength, data,
|
|
"Value: 0x%08x (%u): %s", data,
|
|
data, valstr);
|
|
} else {
|
|
proto_tree_add_bytes_format(avpi_tree, hf_diameter_avp_data_bytes,
|
|
tvb, offset, avpDataLength,
|
|
tvb_get_ptr(tvb, offset, avpDataLength),
|
|
"Error! Bad Enumerated Length");
|
|
}
|
|
break;
|
|
case DIAMETER_VENDOR_ID:
|
|
if (avpDataLength == 4) {
|
|
guint32 data;
|
|
|
|
data = tvb_get_ntohl(tvb, offset);
|
|
valstr = diameter_vendor_to_str(data, TRUE);
|
|
proto_tree_add_uint_format(avpi_tree, hf_diameter_avp_data_uint32,
|
|
tvb, offset, avpDataLength, data,
|
|
"Vendor ID: %s (0x%08x)", valstr,
|
|
data);
|
|
} else {
|
|
proto_tree_add_bytes_format(avpi_tree, hf_diameter_avp_data_bytes,
|
|
tvb, offset, avpDataLength,
|
|
tvb_get_ptr(tvb, offset, avpDataLength),
|
|
"Error! Bad Vendor ID Length");
|
|
}
|
|
break;
|
|
case DIAMETER_APPLICATION_ID:
|
|
if (avpDataLength == 4) {
|
|
guint32 data;
|
|
|
|
data = tvb_get_ntohl(tvb, offset);
|
|
valstr = diameter_app_to_str(data);
|
|
proto_tree_add_uint_format(avpi_tree, hf_diameter_avp_data_uint32,
|
|
tvb, offset, avpDataLength, data,
|
|
"Application ID: %s (0x%08x)",
|
|
valstr, data);
|
|
} else {
|
|
proto_tree_add_bytes_format(avpi_tree, hf_diameter_avp_data_bytes,
|
|
tvb, offset, avpDataLength,
|
|
tvb_get_ptr(tvb, offset, avpDataLength),
|
|
"Error! Bad Application ID Length");
|
|
}
|
|
break;
|
|
case DIAMETER_MIP_REG_REQ:
|
|
safe_dissect_mip(tvb, pinfo, avpi_tree, offset, avpDataLength);
|
|
break;
|
|
|
|
default:
|
|
case DIAMETER_OCTET_STRING:
|
|
proto_tree_add_bytes_format(avpi_tree, hf_diameter_avp_data_bytes,
|
|
tvb, offset, avpDataLength,
|
|
tvb_get_ptr(tvb, offset, avpDataLength),
|
|
"Hex Data Highlighted Below");
|
|
break;
|
|
|
|
} /* switch type */
|
|
} /* avpi_tree != null */
|
|
offset += (avpLength - hdrLength);
|
|
offset += fixAmt; /* fix byte alignment */
|
|
} /* loop */
|
|
} /* dissect_avps */
|
|
|
|
|
|
|
|
void
|
|
proto_reg_handoff_diameter(void)
|
|
{
|
|
static int Initialized=FALSE;
|
|
static int TcpPort=0;
|
|
static int SctpPort=0;
|
|
static dissector_handle_t diameter_tcp_handle;
|
|
static dissector_handle_t diameter_handle;
|
|
|
|
if (!Initialized) {
|
|
diameter_tcp_handle = new_create_dissector_handle(dissect_diameter_tcp,
|
|
proto_diameter);
|
|
diameter_handle = new_create_dissector_handle(dissect_diameter,
|
|
proto_diameter);
|
|
Initialized=TRUE;
|
|
} else {
|
|
dissector_delete("tcp.port", TcpPort, diameter_tcp_handle);
|
|
dissector_delete("sctp.port", SctpPort, diameter_handle);
|
|
}
|
|
|
|
/* set port for future deletes */
|
|
TcpPort=gbl_diameterTcpPort;
|
|
SctpPort=gbl_diameterSctpPort;
|
|
|
|
/* g_warning ("Diameter: Adding tcp dissector to port %d",
|
|
gbl_diameterTcpPort); */
|
|
dissector_add("tcp.port", gbl_diameterTcpPort, diameter_tcp_handle);
|
|
dissector_add("sctp.port", gbl_diameterSctpPort, diameter_handle);
|
|
}
|
|
|
|
/* registration with the filtering engine */
|
|
void
|
|
proto_register_diameter(void)
|
|
{
|
|
static hf_register_info hf[] = {
|
|
{ &hf_diameter_version,
|
|
{ "Version", "diameter.version", FT_UINT8, BASE_HEX, NULL, 0x00,
|
|
"", HFILL }},
|
|
{ &hf_diameter_length,
|
|
{ "Length","diameter.length", FT_UINT24, BASE_DEC, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_diameter_flags,
|
|
{ "Flags", "diameter.flags", FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
"", HFILL }},
|
|
{ &hf_diameter_flags_request,
|
|
{ "Request", "diameter.flags.request", FT_BOOLEAN, 8, TFS(&flags_set_truth), DIAM_FLAGS_R,
|
|
"", HFILL }},
|
|
{ &hf_diameter_flags_proxyable,
|
|
{ "Proxyable", "diameter.flags.proxyable", FT_BOOLEAN, 8, TFS(&flags_set_truth), DIAM_FLAGS_P,
|
|
"", HFILL }},
|
|
{ &hf_diameter_flags_error,
|
|
{ "Error","diameter.flags.error", FT_BOOLEAN, 8, TFS(&flags_set_truth), DIAM_FLAGS_E,
|
|
"", HFILL }},
|
|
{ &hf_diameter_flags_reserved3,
|
|
{ "Reserved","diameter.flags.reserved3", FT_BOOLEAN, 8, TFS(&reserved_set),
|
|
DIAM_FLAGS_RESERVED3, "", HFILL }},
|
|
{ &hf_diameter_flags_reserved4,
|
|
{ "Reserved","diameter.flags.reserved4", FT_BOOLEAN, 8, TFS(&reserved_set),
|
|
DIAM_FLAGS_RESERVED4, "", HFILL }},
|
|
{ &hf_diameter_flags_reserved5,
|
|
{ "Reserved","diameter.flags.reserved5", FT_BOOLEAN, 8, TFS(&reserved_set),
|
|
DIAM_FLAGS_RESERVED5, "", HFILL }},
|
|
{ &hf_diameter_flags_reserved6,
|
|
{ "Reserved","diameter.flags.reserved6", FT_BOOLEAN, 8, TFS(&reserved_set),
|
|
DIAM_FLAGS_RESERVED6, "", HFILL }},
|
|
{ &hf_diameter_flags_reserved7,
|
|
{ "Reserved","diameter.flags.reserved7", FT_BOOLEAN, 8, TFS(&reserved_set),
|
|
DIAM_FLAGS_RESERVED7, "", HFILL }},
|
|
|
|
{ &hf_diameter_code,
|
|
{ "Command Code","diameter.code", FT_UINT24, BASE_DEC,
|
|
NULL, 0x0, "", HFILL }},
|
|
{ &hf_diameter_vendor_id,
|
|
{ "VendorId", "diameter.vendorId", FT_UINT32, BASE_DEC, NULL,
|
|
0x0,"", HFILL }},
|
|
{ &hf_diameter_hopbyhopid,
|
|
{ "Hop-by-Hop Identifier", "diameter.hopbyhopid", FT_UINT32,
|
|
BASE_HEX, NULL, 0x0, "", HFILL }},
|
|
{ &hf_diameter_endtoendid,
|
|
{ "End-to-End Identifier", "diameter.endtoendid", FT_UINT32,
|
|
BASE_HEX, NULL, 0x0, "", HFILL }},
|
|
|
|
{ &hf_diameter_avp_code,
|
|
{ "AVP Code","diameter.avp.code", FT_UINT32, BASE_DEC,
|
|
NULL, 0x0, "", HFILL }},
|
|
{ &hf_diameter_avp_length,
|
|
{ "AVP Length","diameter.avp.length", FT_UINT24, BASE_DEC,
|
|
NULL, 0x0, "", HFILL }},
|
|
|
|
|
|
{ &hf_diameter_avp_flags,
|
|
{ "AVP Flags","diameter.avp.flags", FT_UINT8, BASE_HEX,
|
|
NULL, 0x0, "", HFILL }},
|
|
{ &hf_diameter_avp_flags_vendor_specific,
|
|
{ "Vendor-Specific", "diameter.flags.vendorspecific", FT_BOOLEAN, 8, TFS(&flags_set_truth), AVP_FLAGS_V,
|
|
"", HFILL }},
|
|
{ &hf_diameter_avp_flags_mandatory,
|
|
{ "Mandatory", "diameter.flags.mandatory", FT_BOOLEAN, 8, TFS(&flags_set_truth), AVP_FLAGS_M,
|
|
"", HFILL }},
|
|
{ &hf_diameter_avp_flags_protected,
|
|
{ "Protected","diameter.avp.flags.protected", FT_BOOLEAN, 8, TFS(&flags_set_truth), AVP_FLAGS_P,
|
|
"", HFILL }},
|
|
{ &hf_diameter_avp_flags_reserved3,
|
|
{ "Reserved","diameter.avp.flags.reserved3", FT_BOOLEAN, 8, TFS(&reserved_set),
|
|
AVP_FLAGS_RESERVED3, "", HFILL }},
|
|
{ &hf_diameter_avp_flags_reserved4,
|
|
{ "Reserved","diameter.avp.flags.reserved4", FT_BOOLEAN, 8, TFS(&reserved_set),
|
|
AVP_FLAGS_RESERVED4, "", HFILL }},
|
|
{ &hf_diameter_avp_flags_reserved5,
|
|
{ "Reserved","diameter.avp.flags.reserved5", FT_BOOLEAN, 8, TFS(&reserved_set),
|
|
AVP_FLAGS_RESERVED5, "", HFILL }},
|
|
{ &hf_diameter_avp_flags_reserved6,
|
|
{ "Reserved","diameter.avp.flags.reserved6", FT_BOOLEAN, 8, TFS(&reserved_set),
|
|
AVP_FLAGS_RESERVED6, "", HFILL }},
|
|
{ &hf_diameter_avp_flags_reserved7,
|
|
{ "Reserved","diameter.avp.flags.reserved7", FT_BOOLEAN, 8, TFS(&reserved_set),
|
|
AVP_FLAGS_RESERVED7, "", HFILL }},
|
|
{ &hf_diameter_avp_vendor_id,
|
|
{ "AVP Vendor Id","diameter.avp.vendorId", FT_UINT32, BASE_DEC,
|
|
NULL, 0x0, "", HFILL }},
|
|
{ &hf_diameter_avp_data_uint64,
|
|
{ "Value","diameter.avp.data.uint64", FT_UINT64, BASE_DEC,
|
|
NULL, 0x0, "", HFILL }},
|
|
{ &hf_diameter_avp_data_int64,
|
|
{ "Value","diameter.avp.data.int64", FT_INT64, BASE_DEC,
|
|
NULL, 0x0, "", HFILL }},
|
|
{ &hf_diameter_avp_data_uint32,
|
|
{ "Value","diameter.avp.data.uint32", FT_UINT32, BASE_DEC,
|
|
NULL, 0x0, "", HFILL }},
|
|
{ &hf_diameter_avp_data_int32,
|
|
{ "Value","diameter.avp.data.int32", FT_INT32, BASE_DEC,
|
|
NULL, 0x0, "", HFILL }},
|
|
{ &hf_diameter_avp_data_bytes,
|
|
{ "Value","diameter.avp.data.bytes", FT_BYTES, BASE_NONE,
|
|
NULL, 0x0, "", HFILL }},
|
|
{ &hf_diameter_avp_data_string,
|
|
{ "Value","diameter.avp.data.string", FT_STRING, BASE_NONE,
|
|
NULL, 0x0, "", HFILL }},
|
|
{ &hf_diameter_avp_data_v4addr,
|
|
{ "IPv4 Address","diameter.avp.data.v4addr", FT_IPv4, BASE_NONE,
|
|
NULL, 0x0, "", HFILL }},
|
|
{ &hf_diameter_avp_data_v6addr,
|
|
{ "IPv6 Address","diameter.avp.data.v6addr", FT_IPv6, BASE_NONE,
|
|
NULL, 0x0, "", HFILL }},
|
|
{ &hf_diameter_avp_data_time,
|
|
{ "Time","diameter.avp.data.time", FT_ABSOLUTE_TIME, BASE_NONE,
|
|
NULL, 0x0, "", HFILL }},
|
|
|
|
};
|
|
static gint *ett[] = {
|
|
&ett_diameter,
|
|
&ett_diameter_flags,
|
|
&ett_diameter_avp,
|
|
&ett_diameter_avp_flags,
|
|
&ett_diameter_avpinfo
|
|
};
|
|
module_t *diameter_module;
|
|
gchar *default_diameterDictionary;
|
|
|
|
proto_diameter = proto_register_protocol ("Diameter Protocol", "Diameter", "diameter");
|
|
proto_register_field_array(proto_diameter, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
/* Register a configuration option for port */
|
|
diameter_module = prefs_register_protocol(proto_diameter,
|
|
proto_reg_handoff_diameter);
|
|
prefs_register_uint_preference(diameter_module, "tcp.port",
|
|
"Diameter TCP Port",
|
|
"Set the TCP port for Diameter messages",
|
|
10,
|
|
&gbl_diameterTcpPort);
|
|
prefs_register_uint_preference(diameter_module, "sctp.port",
|
|
"Diameter SCTP Port",
|
|
"Set the SCTP port for Diameter messages",
|
|
10,
|
|
&gbl_diameterSctpPort);
|
|
/*
|
|
* Build our default dictionary filename
|
|
*/
|
|
default_diameterDictionary = get_datafile_path(DICT_FN);
|
|
|
|
/*
|
|
* Now register the dictionary filename as a preference,
|
|
* so it can be changed.
|
|
*/
|
|
gbl_diameterDictionary = default_diameterDictionary;
|
|
prefs_register_string_preference(diameter_module, "dictionary.name",
|
|
"Diameter XML Dictionary",
|
|
"Set the dictionary used for Diameter messages",
|
|
&gbl_diameterDictionary);
|
|
|
|
/*
|
|
* We don't need the default dictionary, so free it (a copy was made
|
|
* of it in "gbl_diameterDictionary" by
|
|
* "prefs_register_string_preference()").
|
|
*/
|
|
g_free(default_diameterDictionary);
|
|
|
|
/* Desegmentation */
|
|
prefs_register_bool_preference(diameter_module, "desegment",
|
|
"Desegment all Diameter messages\nspanning multiple TCP segments",
|
|
"Whether the Diameter dissector should desegment all messages spanning multiple TCP segments",
|
|
&gbl_diameter_desegment);
|
|
/* Allow zero as valid application ID */
|
|
prefs_register_bool_preference(diameter_module, "allow_zero_as_app_id",
|
|
"Allow 0 as valid application ID",
|
|
"If set, the value 0 (zero) can be used as a valid "
|
|
"application ID. This is used in experimental cases.",
|
|
&allow_zero_as_app_id);
|
|
/* Register some preferences we no longer support, so we can report
|
|
them as obsolete rather than just illegal. */
|
|
prefs_register_obsolete_preference(diameter_module, "udp.port");
|
|
prefs_register_obsolete_preference(diameter_module, "command_in_header");
|
|
} /* proto_register_diameter */
|