forked from osmocom/wireshark
5447 lines
187 KiB
C
5447 lines
187 KiB
C
/* packet-kerberos.c
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* Routines for Kerberos
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* Wes Hardaker (c) 2000
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* wjhardaker@ucdavis.edu
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* Richard Sharpe (C) 2002, rsharpe@samba.org, modularized a bit more and
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* added AP-REQ and AP-REP dissection
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*
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* Ronnie Sahlberg (C) 2004, major rewrite for new ASN.1/BER API.
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* decryption of kerberos blobs if keytab is provided
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*
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* See RFC 1510, and various I-Ds and other documents showing additions,
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* e.g. ones listed under
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*
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* http://www.isi.edu/people/bcn/krb-revisions/
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*
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* and
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*
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* http://www.ietf.org/internet-drafts/draft-ietf-krb-wg-kerberos-clarifications-07.txt
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*
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* and
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*
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* http://www.ietf.org/internet-drafts/draft-ietf-krb-wg-kerberos-referrals-05.txt
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*
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* Some structures from RFC2630
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*
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* Ted Percival ted[AT]midg3t.net
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* Support for PA-S4U2Self Kerberos packet type based on ASN.1 description
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* in Heimdal:
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* http://loka.it.su.se/source/xref/heimdal/heimdal/lib/asn1/k5.asn1
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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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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/*
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* Some of the development of the Kerberos protocol decoder was sponsored by
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* Cable Television Laboratories, Inc. ("CableLabs") based upon proprietary
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* CableLabs' specifications. Your license and use of this protocol decoder
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* does not mean that you are licensed to use the CableLabs'
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* specifications. If you have questions about this protocol, contact
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* jf.mule [AT] cablelabs.com or c.stuart [AT] cablelabs.com for additional
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* information.
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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 <string.h>
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#include <glib.h>
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#include <ctype.h>
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#ifdef HAVE_LIBNETTLE
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#define HAVE_KERBEROS
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#ifdef _WIN32
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#include <des.h>
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#include <cbc.h>
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#else
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#include <nettle/des.h>
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#include <nettle/cbc.h>
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#endif
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#include <epan/crypt/crypt-md5.h>
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#include <sys/stat.h> /* For keyfile manipulation */
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#endif
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#include <epan/packet.h>
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#include <epan/strutil.h>
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#include <epan/conversation.h>
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#include <epan/emem.h>
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#include <epan/asn1.h>
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#include <epan/dissectors/packet-kerberos.h>
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#include <epan/dissectors/packet-netbios.h>
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#include <epan/dissectors/packet-tcp.h>
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#include <epan/prefs.h>
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#include <epan/dissectors/packet-ber.h>
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#include <epan/dissectors/packet-pkinit.h>
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#include <epan/dissectors/packet-cms.h>
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#include <epan/dissectors/packet-windows-common.h>
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#include <epan/dissectors/packet-dcerpc-netlogon.h>
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#include <epan/dissectors/packet-dcerpc.h>
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#include <epan/dissectors/packet-gssapi.h>
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#include <wsutil/file_util.h>
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#define UDP_PORT_KERBEROS 88
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#define TCP_PORT_KERBEROS 88
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static dissector_handle_t kerberos_handle_udp;
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/* Desegment Kerberos over TCP messages */
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static gboolean krb_desegment = TRUE;
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static gint proto_kerberos = -1;
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static gint hf_krb_rm_reserved = -1;
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static gint hf_krb_rm_reclen = -1;
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static gint hf_krb_pac_signature_type = -1;
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static gint hf_krb_pac_signature_signature = -1;
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static gint hf_krb_pac_clientid = -1;
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static gint hf_krb_pac_namelen = -1;
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static gint hf_krb_pac_clientname = -1;
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static gint hf_krb_w2k_pac_entries = -1;
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static gint hf_krb_w2k_pac_version = -1;
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static gint hf_krb_w2k_pac_type = -1;
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static gint hf_krb_w2k_pac_size = -1;
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static gint hf_krb_w2k_pac_offset = -1;
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static gint hf_krb_padata = -1;
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static gint hf_krb_error_code = -1;
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static gint hf_krb_ticket = -1;
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static gint hf_krb_AP_REP_enc = -1;
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static gint hf_krb_KDC_REP_enc = -1;
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static gint hf_krb_tkt_vno = -1;
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static gint hf_krb_e_data = -1;
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static gint hf_krb_TransitedEncoding = -1;
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static gint hf_krb_PA_PAC_REQUEST_flag = -1;
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static gint hf_krb_encrypted_authenticator_data = -1;
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static gint hf_krb_PAC_LOGON_INFO = -1;
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static gint hf_krb_PAC_CREDENTIAL_TYPE = -1;
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static gint hf_krb_PAC_SERVER_CHECKSUM = -1;
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static gint hf_krb_PAC_PRIVSVR_CHECKSUM = -1;
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static gint hf_krb_PAC_CLIENT_INFO_TYPE = -1;
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static gint hf_krb_PAC_CONSTRAINED_DELEGATION = -1;
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static gint hf_krb_encrypted_PA_ENC_TIMESTAMP = -1;
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static gint hf_krb_encrypted_EncKrbCredPart = -1;
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static gint hf_krb_checksum_checksum = -1;
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static gint hf_krb_encrypted_PRIV = -1;
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static gint hf_krb_encrypted_Ticket_data = -1;
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static gint hf_krb_encrypted_AP_REP_data = -1;
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static gint hf_krb_encrypted_KDC_REP_data = -1;
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static gint hf_krb_PA_DATA_type = -1;
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static gint hf_krb_PA_DATA_value = -1;
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static gint hf_krb_etype_info_salt = -1;
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static gint hf_krb_etype_info2_salt = -1;
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static gint hf_krb_etype_info2_s2kparams = -1;
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static gint hf_krb_SAFE_BODY_user_data = -1;
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static gint hf_krb_PRIV_BODY_user_data = -1;
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static gint hf_krb_realm = -1;
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static gint hf_krb_srealm = -1;
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static gint hf_krb_prealm = -1;
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static gint hf_krb_crealm = -1;
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static gint hf_krb_sname = -1;
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static gint hf_krb_pname = -1;
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static gint hf_krb_cname = -1;
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static gint hf_krb_name_string = -1;
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static gint hf_krb_provsrv_location = -1;
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static gint hf_krb_e_text = -1;
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static gint hf_krb_s4u2self_auth = -1;
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static gint hf_krb_name_type = -1;
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static gint hf_krb_lr_type = -1;
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static gint hf_krb_from = -1;
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static gint hf_krb_till = -1;
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static gint hf_krb_authtime = -1;
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static gint hf_krb_patimestamp = -1;
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static gint hf_krb_SAFE_BODY_timestamp = -1;
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static gint hf_krb_pausec = -1;
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static gint hf_krb_lr_time = -1;
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static gint hf_krb_starttime = -1;
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static gint hf_krb_endtime = -1;
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static gint hf_krb_key_expire = -1;
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static gint hf_krb_renew_till = -1;
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static gint hf_krb_rtime = -1;
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static gint hf_krb_ctime = -1;
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static gint hf_krb_cusec = -1;
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static gint hf_krb_stime = -1;
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static gint hf_krb_susec = -1;
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static gint hf_krb_SAFE_BODY_usec = -1;
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static gint hf_krb_nonce = -1;
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static gint hf_krb_transitedtype = -1;
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static gint hf_krb_transitedcontents = -1;
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static gint hf_krb_keytype = -1;
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static gint hf_krb_keyvalue = -1;
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static gint hf_krb_IF_RELEVANT_type = -1;
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static gint hf_krb_IF_RELEVANT_value = -1;
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static gint hf_krb_adtype = -1;
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static gint hf_krb_advalue = -1;
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static gint hf_krb_etype = -1;
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static gint hf_krb_etypes = -1;
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static gint hf_krb_KrbCredInfos = -1;
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static gint hf_krb_sq_tickets = -1;
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static gint hf_krb_LastReqs = -1;
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static gint hf_krb_IF_RELEVANT = -1;
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static gint hf_krb_addr_type = -1;
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static gint hf_krb_address_ip = -1;
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static gint hf_krb_address_netbios = -1;
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static gint hf_krb_msg_type = -1;
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static gint hf_krb_pvno = -1;
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static gint hf_krb_kvno = -1;
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static gint hf_krb_checksum_type = -1;
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static gint hf_krb_authenticator_vno = -1;
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static gint hf_krb_AuthorizationData = -1;
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static gint hf_krb_key = -1;
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static gint hf_krb_subkey = -1;
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static gint hf_krb_seq_number = -1;
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static gint hf_krb_EncTicketPart = -1;
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static gint hf_krb_EncAPRepPart = -1;
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static gint hf_krb_EncKrbPrivPart = -1;
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static gint hf_krb_EncKrbCredPart = -1;
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static gint hf_krb_EncKDCRepPart = -1;
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static gint hf_krb_LastReq = -1;
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static gint hf_krb_Authenticator = -1;
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static gint hf_krb_Checksum = -1;
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static gint hf_krb_s_address = -1;
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static gint hf_krb_r_address = -1;
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static gint hf_krb_KrbCredInfo = -1;
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static gint hf_krb_HostAddress = -1;
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static gint hf_krb_HostAddresses = -1;
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static gint hf_krb_APOptions = -1;
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static gint hf_krb_APOptions_use_session_key = -1;
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static gint hf_krb_APOptions_mutual_required = -1;
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static gint hf_krb_TicketFlags = -1;
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static gint hf_krb_TicketFlags_forwardable = -1;
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static gint hf_krb_TicketFlags_forwarded = -1;
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static gint hf_krb_TicketFlags_proxyable = -1;
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static gint hf_krb_TicketFlags_proxy = -1;
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static gint hf_krb_TicketFlags_allow_postdate = -1;
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static gint hf_krb_TicketFlags_postdated = -1;
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static gint hf_krb_TicketFlags_invalid = -1;
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static gint hf_krb_TicketFlags_renewable = -1;
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static gint hf_krb_TicketFlags_initial = -1;
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static gint hf_krb_TicketFlags_pre_auth = -1;
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static gint hf_krb_TicketFlags_hw_auth = -1;
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static gint hf_krb_TicketFlags_transited_policy_checked = -1;
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static gint hf_krb_TicketFlags_ok_as_delegate = -1;
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static gint hf_krb_KDCOptions = -1;
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static gint hf_krb_KDCOptions_forwardable = -1;
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static gint hf_krb_KDCOptions_forwarded = -1;
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static gint hf_krb_KDCOptions_proxyable = -1;
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static gint hf_krb_KDCOptions_proxy = -1;
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static gint hf_krb_KDCOptions_allow_postdate = -1;
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static gint hf_krb_KDCOptions_postdated = -1;
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static gint hf_krb_KDCOptions_renewable = -1;
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static gint hf_krb_KDCOptions_constrained_delegation = -1;
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static gint hf_krb_KDCOptions_canonicalize = -1;
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static gint hf_krb_KDCOptions_opt_hardware_auth = -1;
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static gint hf_krb_KDCOptions_disable_transited_check = -1;
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static gint hf_krb_KDCOptions_renewable_ok = -1;
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static gint hf_krb_KDCOptions_enc_tkt_in_skey = -1;
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static gint hf_krb_KDCOptions_renew = -1;
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static gint hf_krb_KDCOptions_validate = -1;
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static gint hf_krb_KDC_REQ_BODY = -1;
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static gint hf_krb_PRIV_BODY = -1;
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static gint hf_krb_CRED_BODY = -1;
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static gint hf_krb_ENC_PRIV = -1;
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static gint hf_krb_authenticator_enc = -1;
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static gint hf_krb_CRED_enc = -1;
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static gint hf_krb_ticket_enc = -1;
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static gint hf_krb_e_checksum = -1;
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static gint hf_krb_gssapi_len = -1;
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static gint hf_krb_gssapi_bnd = -1;
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static gint hf_krb_gssapi_dlgopt = -1;
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static gint hf_krb_gssapi_dlglen = -1;
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static gint hf_krb_gssapi_c_flag_deleg = -1;
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static gint hf_krb_gssapi_c_flag_mutual = -1;
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static gint hf_krb_gssapi_c_flag_replay = -1;
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static gint hf_krb_gssapi_c_flag_sequence = -1;
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static gint hf_krb_gssapi_c_flag_conf = -1;
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static gint hf_krb_gssapi_c_flag_integ = -1;
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static gint hf_krb_gssapi_c_flag_dce_style = -1;
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static gint hf_krb_smb_nt_status = -1;
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static gint hf_krb_smb_unknown = -1;
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static gint hf_krb_midl_blob_len = -1;
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static gint hf_krb_midl_fill_bytes = -1;
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static gint hf_krb_midl_version = -1;
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static gint hf_krb_midl_hdr_len = -1;
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static gint ett_krb_kerberos = -1;
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static gint ett_krb_TransitedEncoding = -1;
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static gint ett_krb_PAC_LOGON_INFO = -1;
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static gint ett_krb_PAC_CREDENTIAL_TYPE = -1;
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static gint ett_krb_PAC_SERVER_CHECKSUM = -1;
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static gint ett_krb_PAC_PRIVSVR_CHECKSUM = -1;
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static gint ett_krb_PAC_CLIENT_INFO_TYPE = -1;
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static gint ett_krb_PAC_CONSTRAINED_DELEGATION = -1;
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static gint ett_krb_KDC_REP_enc = -1;
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static gint ett_krb_EncTicketPart = -1;
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static gint ett_krb_EncAPRepPart = -1;
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static gint ett_krb_EncKrbPrivPart = -1;
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static gint ett_krb_EncKrbCredPart = -1;
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static gint ett_krb_EncKDCRepPart = -1;
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static gint ett_krb_LastReq = -1;
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static gint ett_krb_Authenticator = -1;
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static gint ett_krb_Checksum = -1;
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static gint ett_krb_key = -1;
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static gint ett_krb_subkey = -1;
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static gint ett_krb_AuthorizationData = -1;
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static gint ett_krb_sname = -1;
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static gint ett_krb_pname = -1;
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static gint ett_krb_cname = -1;
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static gint ett_krb_AP_REP_enc = -1;
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static gint ett_krb_padata = -1;
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static gint ett_krb_etypes = -1;
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static gint ett_krb_KrbCredInfos = -1;
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static gint ett_krb_sq_tickets = -1;
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static gint ett_krb_LastReqs = -1;
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static gint ett_krb_IF_RELEVANT = -1;
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static gint ett_krb_PA_DATA_tree = -1;
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static gint ett_krb_PAC = -1;
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static gint ett_krb_s_address = -1;
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static gint ett_krb_r_address = -1;
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static gint ett_krb_KrbCredInfo = -1;
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static gint ett_krb_HostAddress = -1;
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static gint ett_krb_HostAddresses = -1;
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static gint ett_krb_authenticator_enc = -1;
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static gint ett_krb_CRED_enc = -1;
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static gint ett_krb_AP_Options = -1;
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static gint ett_krb_KDC_Options = -1;
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static gint ett_krb_Ticket_Flags = -1;
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static gint ett_krb_request = -1;
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static gint ett_krb_recordmark = -1;
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static gint ett_krb_ticket = -1;
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static gint ett_krb_ticket_enc = -1;
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static gint ett_krb_CRED = -1;
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static gint ett_krb_PRIV = -1;
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static gint ett_krb_PRIV_enc = -1;
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static gint ett_krb_e_checksum = -1;
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static gint ett_krb_PAC_MIDL_BLOB = -1;
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static gint ett_krb_PAC_DREP = -1;
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guint32 krb5_errorcode;
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static dissector_handle_t krb4_handle=NULL;
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static gboolean do_col_info;
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static void
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call_kerberos_callbacks(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int tag)
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{
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kerberos_callbacks *cb=(kerberos_callbacks *)pinfo->private_data;
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if(!cb){
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return;
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}
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while(cb->tag){
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if(cb->tag==tag){
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cb->callback(pinfo, tvb, tree);
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return;
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}
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cb++;
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}
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return;
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}
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#ifdef HAVE_KERBEROS
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/* Decrypt Kerberos blobs */
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static gboolean krb_decrypt = FALSE;
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/* keytab filename */
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static const char *keytab_filename = "insert filename here";
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#endif
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|
#if defined(HAVE_HEIMDAL_KERBEROS) || defined(HAVE_MIT_KERBEROS)
|
|
#ifdef _WIN32
|
|
/* prevent redefinition warnings in kfw-2.5\inc\win_mac.h */
|
|
#undef HAVE_STDARG_H
|
|
#undef HAVE_SYS_TYPES_H
|
|
#endif
|
|
#include <krb5.h>
|
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enc_key_t *enc_key_list=NULL;
|
|
|
|
static void
|
|
add_encryption_key(packet_info *pinfo, int keytype, int keylength, const char *keyvalue, const char *origin)
|
|
{
|
|
enc_key_t *new_key;
|
|
|
|
if(pinfo->fd->flags.visited){
|
|
return;
|
|
}
|
|
printf("added key in %u\n",pinfo->fd->num);
|
|
|
|
new_key=g_malloc(sizeof(enc_key_t));
|
|
g_snprintf(new_key->key_origin, KRB_MAX_ORIG_LEN, "%s learnt from frame %u",origin,pinfo->fd->num);
|
|
new_key->next=enc_key_list;
|
|
enc_key_list=new_key;
|
|
new_key->keytype=keytype;
|
|
new_key->keylength=keylength;
|
|
/*XXX this needs to be freed later */
|
|
new_key->keyvalue=g_memdup(keyvalue, keylength);
|
|
}
|
|
#endif /* HAVE_HEIMDAL_KERBEROS || HAVE_MIT_KERBEROS */
|
|
|
|
|
|
#ifdef HAVE_MIT_KERBEROS
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|
|
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static void
|
|
read_keytab_file(const char *filename, krb5_context *context)
|
|
{
|
|
krb5_keytab keytab;
|
|
krb5_keytab_entry key;
|
|
krb5_error_code ret;
|
|
krb5_kt_cursor cursor;
|
|
enc_key_t *new_key;
|
|
|
|
/* should use a file in the wireshark users dir */
|
|
ret = krb5_kt_resolve(*context, filename, &keytab);
|
|
if(ret){
|
|
fprintf(stderr, "KERBEROS ERROR: Could not open keytab file :%s\n",filename);
|
|
|
|
return;
|
|
}
|
|
|
|
ret = krb5_kt_start_seq_get(*context, keytab, &cursor);
|
|
if(ret){
|
|
fprintf(stderr, "KERBEROS ERROR: Could not read from keytab file :%s\n",filename);
|
|
return;
|
|
}
|
|
|
|
do{
|
|
new_key=g_malloc(sizeof(enc_key_t));
|
|
new_key->next=enc_key_list;
|
|
ret = krb5_kt_next_entry(*context, keytab, &key, &cursor);
|
|
if(ret==0){
|
|
int i;
|
|
char *pos;
|
|
|
|
/* generate origin string, describing where this key came from */
|
|
pos=new_key->key_origin;
|
|
pos+=MIN(KRB_MAX_ORIG_LEN,
|
|
g_snprintf(pos, KRB_MAX_ORIG_LEN, "keytab principal "));
|
|
for(i=0;i<key.principal->length;i++){
|
|
pos+=MIN(KRB_MAX_ORIG_LEN-(pos-new_key->key_origin),
|
|
g_snprintf(pos, KRB_MAX_ORIG_LEN-(pos-new_key->key_origin), "%s%s",(i?"/":""),(key.principal->data[i]).data));
|
|
}
|
|
pos+=MIN(KRB_MAX_ORIG_LEN-(pos-new_key->key_origin),
|
|
g_snprintf(pos, KRB_MAX_ORIG_LEN-(pos-new_key->key_origin), "@%s",key.principal->realm.data));
|
|
*pos=0;
|
|
/*printf("added key for principal :%s\n", new_key->key_origin);*/
|
|
new_key->keytype=key.key.enctype;
|
|
new_key->keylength=key.key.length;
|
|
new_key->keyvalue=g_memdup(key.key.contents, key.key.length);
|
|
enc_key_list=new_key;
|
|
}
|
|
}while(ret==0);
|
|
|
|
ret = krb5_kt_end_seq_get(*context, keytab, &cursor);
|
|
if(ret){
|
|
krb5_kt_close(*context, keytab);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
guint8 *
|
|
decrypt_krb5_data(proto_tree *tree, packet_info *pinfo,
|
|
int usage,
|
|
int length,
|
|
const guint8 *cryptotext,
|
|
int keytype)
|
|
{
|
|
static int first_time=1;
|
|
static krb5_context context;
|
|
krb5_error_code ret;
|
|
enc_key_t *ek;
|
|
static krb5_data data = {0,0,NULL};
|
|
krb5_keytab_entry key;
|
|
|
|
/* dont do anything if we are not attempting to decrypt data */
|
|
if(!krb_decrypt){
|
|
return NULL;
|
|
}
|
|
|
|
/* XXX we should only do this for first time, then store somewhere */
|
|
/* XXX We also need to re-read the keytab when the preference changes */
|
|
|
|
/* should this have a destroy context ? MIT people would know */
|
|
if(first_time){
|
|
first_time=0;
|
|
ret = krb5_init_context(&context);
|
|
if(ret){
|
|
return NULL;
|
|
}
|
|
read_keytab_file(keytab_filename, &context);
|
|
}
|
|
|
|
for(ek=enc_key_list;ek;ek=ek->next){
|
|
krb5_enc_data input;
|
|
|
|
/* shortcircuit and bail out if enctypes are not matching */
|
|
if(ek->keytype!=keytype){
|
|
continue;
|
|
}
|
|
|
|
input.enctype = ek->keytype;
|
|
input.ciphertext.length = length;
|
|
input.ciphertext.data = (guint8 *)cryptotext;
|
|
|
|
data.length = length;
|
|
if(data.data){
|
|
g_free(data.data);
|
|
}
|
|
data.data = g_malloc(length);
|
|
|
|
key.key.enctype=ek->keytype;
|
|
key.key.length=ek->keylength;
|
|
key.key.contents=ek->keyvalue;
|
|
ret = krb5_c_decrypt(context, &(key.key), usage, 0, &input, &data);
|
|
if((ret == 0) && (length>0)){
|
|
char *user_data;
|
|
|
|
printf("woohoo decrypted keytype:%d in frame:%u\n", keytype, pinfo->fd->num);
|
|
proto_tree_add_text(tree, NULL, 0, 0, "[Decrypted using: %s]", ek->key_origin);
|
|
/* return a private g_malloced blob to the caller */
|
|
user_data=g_malloc(data.length);
|
|
memcpy(user_data, data.data, data.length);
|
|
return user_data;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
#elif defined(HAVE_HEIMDAL_KERBEROS)
|
|
static void
|
|
read_keytab_file(const char *filename, krb5_context *context)
|
|
{
|
|
krb5_keytab keytab;
|
|
krb5_keytab_entry key;
|
|
krb5_error_code ret;
|
|
krb5_kt_cursor cursor;
|
|
enc_key_t *new_key;
|
|
|
|
/* should use a file in the wireshark users dir */
|
|
ret = krb5_kt_resolve(*context, filename, &keytab);
|
|
if(ret){
|
|
fprintf(stderr, "KERBEROS ERROR: Could not open keytab file :%s\n",filename);
|
|
|
|
return;
|
|
}
|
|
|
|
ret = krb5_kt_start_seq_get(*context, keytab, &cursor);
|
|
if(ret){
|
|
fprintf(stderr, "KERBEROS ERROR: Could not read from keytab file :%s\n",filename);
|
|
return;
|
|
}
|
|
|
|
do{
|
|
new_key=g_malloc(sizeof(enc_key_t));
|
|
new_key->next=enc_key_list;
|
|
ret = krb5_kt_next_entry(*context, keytab, &key, &cursor);
|
|
if(ret==0){
|
|
unsigned int i;
|
|
char *pos;
|
|
|
|
/* generate origin string, describing where this key came from */
|
|
pos=new_key->key_origin;
|
|
pos+=MIN(KRB_MAX_ORIG_LEN,
|
|
g_snprintf(pos, KRB_MAX_ORIG_LEN, "keytab principal "));
|
|
for(i=0;i<key.principal->name.name_string.len;i++){
|
|
pos+=MIN(KRB_MAX_ORIG_LEN-(pos-new_key->key_origin),
|
|
g_snprintf(pos, KRB_MAX_ORIG_LEN-(pos-new_key->key_origin), "%s%s",(i?"/":""),key.principal->name.name_string.val[i]));
|
|
}
|
|
pos+=MIN(KRB_MAX_ORIG_LEN-(pos-new_key->key_origin),
|
|
g_snprintf(pos, KRB_MAX_ORIG_LEN-(pos-new_key->key_origin), "@%s",key.principal->realm));
|
|
*pos=0;
|
|
new_key->keytype=key.keyblock.keytype;
|
|
new_key->keylength=key.keyblock.keyvalue.length;
|
|
new_key->keyvalue=g_memdup(key.keyblock.keyvalue.data, key.keyblock.keyvalue.length);
|
|
enc_key_list=new_key;
|
|
}
|
|
}while(ret==0);
|
|
|
|
ret = krb5_kt_end_seq_get(*context, keytab, &cursor);
|
|
if(ret){
|
|
krb5_kt_close(*context, keytab);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
guint8 *
|
|
decrypt_krb5_data(proto_tree *tree, packet_info *pinfo,
|
|
int usage,
|
|
int length,
|
|
const guint8 *cryptotext,
|
|
int keytype)
|
|
{
|
|
static int first_time=1;
|
|
static krb5_context context;
|
|
krb5_error_code ret;
|
|
krb5_data data;
|
|
enc_key_t *ek;
|
|
|
|
/* dont do anything if we are not attempting to decrypt data */
|
|
if(!krb_decrypt){
|
|
return NULL;
|
|
}
|
|
|
|
/* XXX we should only do this for first time, then store somewhere */
|
|
/* XXX We also need to re-read the keytab when the preference changes */
|
|
|
|
/* should this have a destroy context ? Heimdal people would know */
|
|
if(first_time){
|
|
first_time=0;
|
|
ret = krb5_init_context(&context);
|
|
if(ret){
|
|
return NULL;
|
|
}
|
|
read_keytab_file(keytab_filename, &context);
|
|
}
|
|
|
|
for(ek=enc_key_list;ek;ek=ek->next){
|
|
krb5_keytab_entry key;
|
|
krb5_crypto crypto;
|
|
guint8 *cryptocopy; /* workaround for pre-0.6.1 heimdal bug */
|
|
|
|
/* shortcircuit and bail out if enctypes are not matching */
|
|
if(ek->keytype!=keytype){
|
|
continue;
|
|
}
|
|
|
|
key.keyblock.keytype=ek->keytype;
|
|
key.keyblock.keyvalue.length=ek->keylength;
|
|
key.keyblock.keyvalue.data=ek->keyvalue;
|
|
ret = krb5_crypto_init(context, &(key.keyblock), 0, &crypto);
|
|
if(ret){
|
|
return NULL;
|
|
}
|
|
|
|
/* pre-0.6.1 versions of Heimdal would sometimes change
|
|
the cryptotext data even when the decryption failed.
|
|
This would obviously not work since we iterate over the
|
|
keys. So just give it a copy of the crypto data instead.
|
|
This has been seen for RC4-HMAC blobs.
|
|
*/
|
|
cryptocopy=g_malloc(length);
|
|
memcpy(cryptocopy, cryptotext, length);
|
|
ret = krb5_decrypt_ivec(context, crypto, usage,
|
|
cryptocopy, length,
|
|
&data,
|
|
NULL);
|
|
g_free(cryptocopy);
|
|
if((ret == 0) && (length>0)){
|
|
char *user_data;
|
|
|
|
printf("woohoo decrypted keytype:%d in frame:%u\n", keytype, pinfo->fd->num);
|
|
proto_tree_add_text(tree, NULL, 0, 0, "[Decrypted using: %s]", ek->key_origin);
|
|
krb5_crypto_destroy(context, crypto);
|
|
/* return a private g_malloced blob to the caller */
|
|
user_data=g_malloc(data.length);
|
|
memcpy(user_data, data.data, data.length);
|
|
return user_data;
|
|
}
|
|
krb5_crypto_destroy(context, crypto);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
#elif defined (HAVE_LIBNETTLE)
|
|
|
|
#define SERVICE_KEY_SIZE (DES3_KEY_SIZE + 2)
|
|
#define KEYTYPE_DES3_CBC_MD5 5 /* Currently the only one supported */
|
|
|
|
typedef struct _service_key_t {
|
|
guint16 kvno;
|
|
int keytype;
|
|
int length;
|
|
guint8 *contents;
|
|
char origin[KRB_MAX_ORIG_LEN+1];
|
|
} service_key_t;
|
|
GSList *service_key_list = NULL;
|
|
|
|
|
|
static void
|
|
add_encryption_key(packet_info *pinfo, int keytype, int keylength, const char *keyvalue, const char *origin)
|
|
{
|
|
service_key_t *new_key;
|
|
|
|
if(pinfo->fd->flags.visited){
|
|
return;
|
|
}
|
|
printf("added key in %u\n",pinfo->fd->num);
|
|
|
|
new_key = g_malloc(sizeof(service_key_t));
|
|
new_key->kvno = 0;
|
|
new_key->keytype = keytype;
|
|
new_key->length = keylength;
|
|
new_key->contents = g_malloc(keylength);
|
|
memcpy(new_key->contents, keyvalue, keylength);
|
|
g_snprintf(new_key->origin, KRB_MAX_ORIG_LEN, "%s learnt from frame %u", origin, pinfo->fd->num);
|
|
service_key_list = g_slist_append(service_key_list, (gpointer) new_key);
|
|
}
|
|
|
|
static void
|
|
clear_keytab(void) {
|
|
GSList *ske;
|
|
service_key_t *sk;
|
|
|
|
for(ske = service_key_list; ske != NULL; ske = g_slist_next(ske)){
|
|
sk = (service_key_t *) ske->data;
|
|
if (sk && sk->contents) g_free(sk->contents);
|
|
if (sk) g_free(sk);
|
|
}
|
|
g_slist_free(service_key_list);
|
|
service_key_list = NULL;
|
|
}
|
|
|
|
static void
|
|
read_keytab_file(const char *service_key_file)
|
|
{
|
|
FILE *skf;
|
|
struct stat st;
|
|
service_key_t *sk;
|
|
unsigned char buf[SERVICE_KEY_SIZE];
|
|
int newline_skip = 0, count = 0;
|
|
|
|
if (service_key_file != NULL && ws_stat (service_key_file, &st) == 0) {
|
|
|
|
/* The service key file contains raw 192-bit (24 byte) 3DES keys.
|
|
* There can be zero, one (\n), or two (\r\n) characters between
|
|
* keys. Trailing characters are ignored.
|
|
*/
|
|
|
|
/* XXX We should support the standard keytab format instead */
|
|
if (st.st_size > SERVICE_KEY_SIZE) {
|
|
if ( (st.st_size % (SERVICE_KEY_SIZE + 1) == 0) ||
|
|
(st.st_size % (SERVICE_KEY_SIZE + 1) == SERVICE_KEY_SIZE) ) {
|
|
newline_skip = 1;
|
|
} else if ( (st.st_size % (SERVICE_KEY_SIZE + 2) == 0) ||
|
|
(st.st_size % (SERVICE_KEY_SIZE + 2) == SERVICE_KEY_SIZE) ) {
|
|
newline_skip = 2;
|
|
}
|
|
}
|
|
|
|
skf = ws_fopen(service_key_file, "rb");
|
|
if (! skf) return;
|
|
|
|
while (fread(buf, SERVICE_KEY_SIZE, 1, skf) == 1) {
|
|
sk = g_malloc(sizeof(service_key_t));
|
|
sk->kvno = buf[0] << 8 | buf[1];
|
|
sk->keytype = KEYTYPE_DES3_CBC_MD5;
|
|
sk->length = DES3_KEY_SIZE;
|
|
sk->contents = g_malloc(DES3_KEY_SIZE);
|
|
memcpy(sk->contents, buf + 2, DES3_KEY_SIZE);
|
|
g_snprintf(sk->origin, KRB_MAX_ORIG_LEN, "3DES service key file, key #%d, offset %ld", count, ftell(skf));
|
|
service_key_list = g_slist_append(service_key_list, (gpointer) sk);
|
|
fseek(skf, newline_skip, SEEK_CUR);
|
|
count++;
|
|
g_warning("added key: %s", sk->origin);
|
|
}
|
|
fclose(skf);
|
|
}
|
|
}
|
|
|
|
#define CONFOUNDER_PLUS_CHECKSUM 24
|
|
|
|
guint8 *
|
|
decrypt_krb5_data(proto_tree *tree, packet_info *pinfo,
|
|
int _U_ usage,
|
|
int length,
|
|
const guint8 *cryptotext,
|
|
int keytype)
|
|
{
|
|
tvbuff_t *encr_tvb;
|
|
guint8 *decrypted_data = NULL, *plaintext = NULL;
|
|
int res;
|
|
guint8 cls;
|
|
gboolean pc;
|
|
guint32 tag, item_len, data_len;
|
|
int id_offset, offset;
|
|
guint8 key[DES3_KEY_SIZE];
|
|
guint8 initial_vector[DES_BLOCK_SIZE];
|
|
md5_state_t md5s;
|
|
md5_byte_t digest[16];
|
|
md5_byte_t zero_fill[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
|
|
md5_byte_t confounder[8];
|
|
gboolean ind;
|
|
GSList *ske;
|
|
service_key_t *sk;
|
|
struct des3_ctx ctx;
|
|
|
|
|
|
/* dont do anything if we are not attempting to decrypt data */
|
|
if(!krb_decrypt){
|
|
return NULL;
|
|
}
|
|
|
|
if (keytype != KEYTYPE_DES3_CBC_MD5 || service_key_list == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
decrypted_data = g_malloc(length);
|
|
for(ske = service_key_list; ske != NULL; ske = g_slist_next(ske)){
|
|
gboolean do_continue = FALSE;
|
|
sk = (service_key_t *) ske->data;
|
|
|
|
des_fix_parity(DES3_KEY_SIZE, key, sk->contents);
|
|
|
|
md5_init(&md5s);
|
|
memset(initial_vector, 0, DES_BLOCK_SIZE);
|
|
res = des3_set_key(&ctx, key);
|
|
cbc_decrypt(&ctx, des3_decrypt, DES_BLOCK_SIZE, initial_vector,
|
|
length, decrypted_data, cryptotext);
|
|
encr_tvb = tvb_new_real_data(decrypted_data, length, length);
|
|
|
|
tvb_memcpy(encr_tvb, confounder, 0, 8);
|
|
|
|
/* We have to pull the decrypted data length from the decrypted
|
|
* content. If the key doesn't match or we otherwise get garbage,
|
|
* an exception may get thrown while decoding the ASN.1 header.
|
|
* Catch it, just in case.
|
|
*/
|
|
TRY {
|
|
id_offset = get_ber_identifier(encr_tvb, CONFOUNDER_PLUS_CHECKSUM, &cls, &pc, &tag);
|
|
offset = get_ber_length(encr_tvb, id_offset, &item_len, &ind);
|
|
}
|
|
CATCH (BoundsError) {
|
|
tvb_free(encr_tvb);
|
|
do_continue = TRUE;
|
|
}
|
|
ENDTRY;
|
|
|
|
if (do_continue) continue;
|
|
|
|
data_len = item_len + offset - CONFOUNDER_PLUS_CHECKSUM;
|
|
if ((int) item_len + offset > length) {
|
|
tvb_free(encr_tvb);
|
|
continue;
|
|
}
|
|
|
|
md5_append(&md5s, confounder, 8);
|
|
md5_append(&md5s, zero_fill, 16);
|
|
md5_append(&md5s, decrypted_data + CONFOUNDER_PLUS_CHECKSUM, data_len);
|
|
md5_finish(&md5s, digest);
|
|
|
|
if (tvb_memeql (encr_tvb, 8, digest, 16) == 0) {
|
|
g_warning("woohoo decrypted keytype:%d in frame:%u\n", keytype, pinfo->fd->num);
|
|
plaintext = g_malloc(data_len);
|
|
tvb_memcpy(encr_tvb, plaintext, CONFOUNDER_PLUS_CHECKSUM, data_len);
|
|
tvb_free(encr_tvb);
|
|
|
|
g_free(decrypted_data);
|
|
return(plaintext);
|
|
}
|
|
}
|
|
|
|
g_free(decrypted_data);
|
|
return NULL;
|
|
}
|
|
|
|
|
|
#endif /* HAVE_MIT_KERBEROS / HAVE_HEIMDAL_KERBEROS / HAVE_LIBNETTLE */
|
|
|
|
|
|
|
|
/* TCP Record Mark */
|
|
#define KRB_RM_RESERVED 0x80000000L
|
|
#define KRB_RM_RECLEN 0x7fffffffL
|
|
|
|
#define KRB5_MSG_TICKET 1 /* Ticket */
|
|
#define KRB5_MSG_AUTHENTICATOR 2 /* Authenticator */
|
|
#define KRB5_MSG_ENC_TICKET_PART 3 /* EncTicketPart */
|
|
#define KRB5_MSG_AS_REQ 10 /* AS-REQ type */
|
|
#define KRB5_MSG_AS_REP 11 /* AS-REP type */
|
|
#define KRB5_MSG_TGS_REQ 12 /* TGS-REQ type */
|
|
#define KRB5_MSG_TGS_REP 13 /* TGS-REP type */
|
|
#define KRB5_MSG_AP_REQ 14 /* AP-REQ type */
|
|
#define KRB5_MSG_AP_REP 15 /* AP-REP type */
|
|
|
|
#define KRB5_MSG_SAFE 20 /* KRB-SAFE type */
|
|
#define KRB5_MSG_PRIV 21 /* KRB-PRIV type */
|
|
#define KRB5_MSG_CRED 22 /* KRB-CRED type */
|
|
#define KRB5_MSG_ENC_AS_REP_PART 25 /* EncASRepPart */
|
|
#define KRB5_MSG_ENC_TGS_REP_PART 26 /* EncTGSRepPart */
|
|
#define KRB5_MSG_ENC_AP_REP_PART 27 /* EncAPRepPart */
|
|
#define KRB5_MSG_ENC_KRB_PRIV_PART 28 /* EncKrbPrivPart */
|
|
#define KRB5_MSG_ENC_KRB_CRED_PART 29 /* EncKrbCredPart */
|
|
#define KRB5_MSG_ERROR 30 /* KRB-ERROR type */
|
|
|
|
/* address type constants */
|
|
#define KRB5_ADDR_IPv4 0x02
|
|
#define KRB5_ADDR_CHAOS 0x05
|
|
#define KRB5_ADDR_XEROX 0x06
|
|
#define KRB5_ADDR_ISO 0x07
|
|
#define KRB5_ADDR_DECNET 0x0c
|
|
#define KRB5_ADDR_APPLETALK 0x10
|
|
#define KRB5_ADDR_NETBIOS 0x14
|
|
#define KRB5_ADDR_IPv6 0x18
|
|
|
|
/* encryption type constants */
|
|
#define KRB5_ENCTYPE_NULL 0
|
|
#define KRB5_ENCTYPE_DES_CBC_CRC 1
|
|
#define KRB5_ENCTYPE_DES_CBC_MD4 2
|
|
#define KRB5_ENCTYPE_DES_CBC_MD5 3
|
|
#define KRB5_ENCTYPE_DES_CBC_RAW 4
|
|
#define KRB5_ENCTYPE_DES3_CBC_SHA 5
|
|
#define KRB5_ENCTYPE_DES3_CBC_RAW 6
|
|
#define KRB5_ENCTYPE_DES_HMAC_SHA1 8
|
|
#define KRB5_ENCTYPE_DSA_SHA1_CMS 9
|
|
#define KRB5_ENCTYPE_RSA_MD5_CMS 10
|
|
#define KRB5_ENCTYPE_RSA_SHA1_CMS 11
|
|
#define KRB5_ENCTYPE_RC2_CBC_ENV 12
|
|
#define KRB5_ENCTYPE_RSA_ENV 13
|
|
#define KRB5_ENCTYPE_RSA_ES_OEAP_ENV 14
|
|
#define KRB5_ENCTYPE_DES_EDE3_CBC_ENV 15
|
|
#define KRB5_ENCTYPE_DES3_CBC_SHA1 16
|
|
#define KRB5_ENCTYPE_AES128_CTS_HMAC_SHA1_96 17
|
|
#define KRB5_ENCTYPE_AES256_CTS_HMAC_SHA1_96 18
|
|
#define KRB5_ENCTYPE_DES_CBC_MD5_NT 20
|
|
#define KERB_ENCTYPE_RC4_HMAC 23
|
|
#define KERB_ENCTYPE_RC4_HMAC_EXP 24
|
|
#define KRB5_ENCTYPE_UNKNOWN 0x1ff
|
|
#define KRB5_ENCTYPE_LOCAL_DES3_HMAC_SHA1 0x7007
|
|
#define KRB5_ENCTYPE_RC4_PLAIN_EXP 0xffffff73
|
|
#define KRB5_ENCTYPE_RC4_PLAIN 0xffffff74
|
|
#define KRB5_ENCTYPE_RC4_PLAIN_OLD_EXP 0xffffff78
|
|
#define KRB5_ENCTYPE_RC4_HMAC_OLD_EXP 0xffffff79
|
|
#define KRB5_ENCTYPE_RC4_PLAIN_OLD 0xffffff7a
|
|
#define KRB5_ENCTYPE_RC4_HMAC_OLD 0xffffff7b
|
|
#define KRB5_ENCTYPE_DES_PLAIN 0xffffff7c
|
|
#define KRB5_ENCTYPE_RC4_SHA 0xffffff7d
|
|
#define KRB5_ENCTYPE_RC4_LM 0xffffff7e
|
|
#define KRB5_ENCTYPE_RC4_PLAIN2 0xffffff7f
|
|
#define KRB5_ENCTYPE_RC4_MD4 0xffffff80
|
|
|
|
/* checksum types */
|
|
#define KRB5_CHKSUM_NONE 0
|
|
#define KRB5_CHKSUM_CRC32 1
|
|
#define KRB5_CHKSUM_MD4 2
|
|
#define KRB5_CHKSUM_KRB_DES_MAC 4
|
|
#define KRB5_CHKSUM_KRB_DES_MAC_K 5
|
|
#define KRB5_CHKSUM_MD5 7
|
|
#define KRB5_CHKSUM_MD5_DES 8
|
|
/* the following four comes from packetcable */
|
|
#define KRB5_CHKSUM_MD5_DES3 9
|
|
#define KRB5_CHKSUM_HMAC_SHA1_DES3_KD 12
|
|
#define KRB5_CHKSUM_HMAC_SHA1_DES3 13
|
|
#define KRB5_CHKSUM_SHA1_UNKEYED 14
|
|
#define KRB5_CHKSUM_HMAC_MD5 0xffffff76
|
|
#define KRB5_CHKSUM_MD5_HMAC 0xffffff77
|
|
#define KRB5_CHKSUM_RC4_MD5 0xffffff78
|
|
#define KRB5_CHKSUM_MD25 0xffffff79
|
|
#define KRB5_CHKSUM_DES_MAC_MD5 0xffffff7a
|
|
#define KRB5_CHKSUM_DES_MAC 0xffffff7b
|
|
#define KRB5_CHKSUM_REAL_CRC32 0xffffff7c
|
|
#define KRB5_CHKSUM_SHA1 0xffffff7d
|
|
#define KRB5_CHKSUM_LM 0xffffff7e
|
|
#define KRB5_CHKSUM_GSSAPI 0x8003
|
|
|
|
/*
|
|
* For KERB_ENCTYPE_RC4_HMAC and KERB_ENCTYPE_RC4_HMAC_EXP, see
|
|
*
|
|
* http://www.ietf.org/internet-drafts/draft-brezak-win2k-krb-rc4-hmac-04.txt
|
|
*
|
|
* unless it's expired.
|
|
*/
|
|
|
|
/* pre-authentication type constants */
|
|
#define KRB5_PA_TGS_REQ 1
|
|
#define KRB5_PA_ENC_TIMESTAMP 2
|
|
#define KRB5_PA_PW_SALT 3
|
|
#define KRB5_PA_ENC_ENCKEY 4
|
|
#define KRB5_PA_ENC_UNIX_TIME 5
|
|
#define KRB5_PA_ENC_SANDIA_SECURID 6
|
|
#define KRB5_PA_SESAME 7
|
|
#define KRB5_PA_OSF_DCE 8
|
|
#define KRB5_PA_CYBERSAFE_SECUREID 9
|
|
#define KRB5_PA_AFS3_SALT 10
|
|
#define KRB5_PA_ENCTYPE_INFO 11
|
|
#define KRB5_PA_SAM_CHALLENGE 12
|
|
#define KRB5_PA_SAM_RESPONSE 13
|
|
#define KRB5_PA_PK_AS_REQ 14
|
|
#define KRB5_PA_PK_AS_REP 15
|
|
#define KRB5_PA_DASS 16
|
|
#define KRB5_PA_ENCTYPE_INFO2 19
|
|
#define KRB5_PA_USE_SPECIFIED_KVNO 20
|
|
#define KRB5_PA_SAM_REDIRECT 21
|
|
#define KRB5_PA_GET_FROM_TYPED_DATA 22
|
|
#define KRB5_PA_SAM_ETYPE_INFO 23
|
|
#define KRB5_PA_ALT_PRINC 24
|
|
#define KRB5_PA_SAM_CHALLENGE2 30
|
|
#define KRB5_PA_SAM_RESPONSE2 31
|
|
#define KRB5_TD_PKINIT_CMS_CERTIFICATES 101
|
|
#define KRB5_TD_KRB_PRINCIPAL 102
|
|
#define KRB5_TD_KRB_REALM 103
|
|
#define KRB5_TD_TRUSTED_CERTIFIERS 104
|
|
#define KRB5_TD_CERTIFICATE_INDEX 105
|
|
#define KRB5_TD_APP_DEFINED_ERROR 106
|
|
#define KRB5_TD_REQ_NONCE 107
|
|
#define KRB5_TD_REQ_SEQ 108
|
|
/* preauthentication types >127 (i.e. negative ones) are app specific.
|
|
hopefully there will be no collissions here or we will have to
|
|
come up with something better
|
|
*/
|
|
#define KRB5_PA_PAC_REQUEST 128 /* MS extension */
|
|
#define KRB5_PA_S4U2SELF 129 /* Impersonation (Microsoft extension) */
|
|
#define KRB5_PA_PROV_SRV_LOCATION 255 /* packetcable stuff */
|
|
|
|
/* Principal name-type */
|
|
#define KRB5_NT_UNKNOWN 0
|
|
#define KRB5_NT_PRINCIPAL 1
|
|
#define KRB5_NT_SRV_INST 2
|
|
#define KRB5_NT_SRV_HST 3
|
|
#define KRB5_NT_SRV_XHST 4
|
|
#define KRB5_NT_UID 5
|
|
#define KRB5_NT_X500_PRINCIPAL 6
|
|
#define KRB5_NT_SMTP_NAME 7
|
|
#define KRB5_NT_ENTERPRISE 10
|
|
|
|
/*
|
|
* MS specific name types, from
|
|
*
|
|
* http://msdn.microsoft.com/library/en-us/security/security/kerb_external_name.asp
|
|
*/
|
|
#define KRB5_NT_MS_PRINCIPAL -128
|
|
#define KRB5_NT_MS_PRINCIPAL_AND_SID -129
|
|
#define KRB5_NT_ENT_PRINCIPAL_AND_SID -130
|
|
#define KRB5_NT_PRINCIPAL_AND_SID -131
|
|
#define KRB5_NT_SRV_INST_AND_SID -132
|
|
|
|
/* error table constants */
|
|
/* I prefixed the krb5_err.et constant names with KRB5_ET_ for these */
|
|
#define KRB5_ET_KRB5KDC_ERR_NONE 0
|
|
#define KRB5_ET_KRB5KDC_ERR_NAME_EXP 1
|
|
#define KRB5_ET_KRB5KDC_ERR_SERVICE_EXP 2
|
|
#define KRB5_ET_KRB5KDC_ERR_BAD_PVNO 3
|
|
#define KRB5_ET_KRB5KDC_ERR_C_OLD_MAST_KVNO 4
|
|
#define KRB5_ET_KRB5KDC_ERR_S_OLD_MAST_KVNO 5
|
|
#define KRB5_ET_KRB5KDC_ERR_C_PRINCIPAL_UNKNOWN 6
|
|
#define KRB5_ET_KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN 7
|
|
#define KRB5_ET_KRB5KDC_ERR_PRINCIPAL_NOT_UNIQUE 8
|
|
#define KRB5_ET_KRB5KDC_ERR_NULL_KEY 9
|
|
#define KRB5_ET_KRB5KDC_ERR_CANNOT_POSTDATE 10
|
|
#define KRB5_ET_KRB5KDC_ERR_NEVER_VALID 11
|
|
#define KRB5_ET_KRB5KDC_ERR_POLICY 12
|
|
#define KRB5_ET_KRB5KDC_ERR_BADOPTION 13
|
|
#define KRB5_ET_KRB5KDC_ERR_ETYPE_NOSUPP 14
|
|
#define KRB5_ET_KRB5KDC_ERR_SUMTYPE_NOSUPP 15
|
|
#define KRB5_ET_KRB5KDC_ERR_PADATA_TYPE_NOSUPP 16
|
|
#define KRB5_ET_KRB5KDC_ERR_TRTYPE_NOSUPP 17
|
|
#define KRB5_ET_KRB5KDC_ERR_CLIENT_REVOKED 18
|
|
#define KRB5_ET_KRB5KDC_ERR_SERVICE_REVOKED 19
|
|
#define KRB5_ET_KRB5KDC_ERR_TGT_REVOKED 20
|
|
#define KRB5_ET_KRB5KDC_ERR_CLIENT_NOTYET 21
|
|
#define KRB5_ET_KRB5KDC_ERR_SERVICE_NOTYET 22
|
|
#define KRB5_ET_KRB5KDC_ERR_KEY_EXP 23
|
|
#define KRB5_ET_KRB5KDC_ERR_PREAUTH_FAILED 24
|
|
#define KRB5_ET_KRB5KDC_ERR_PREAUTH_REQUIRED 25
|
|
#define KRB5_ET_KRB5KDC_ERR_SERVER_NOMATCH 26
|
|
#define KRB5_ET_KRB5KDC_ERR_MUST_USE_USER2USER 27
|
|
#define KRB5_ET_KRB5KDC_ERR_PATH_NOT_ACCEPTED 28
|
|
#define KRB5_ET_KRB5KDC_ERR_SVC_UNAVAILABLE 29
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_BAD_INTEGRITY 31
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_TKT_EXPIRED 32
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_TKT_NYV 33
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_REPEAT 34
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_NOT_US 35
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_BADMATCH 36
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_SKEW 37
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_BADADDR 38
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_BADVERSION 39
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_MSG_TYPE 40
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_MODIFIED 41
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_BADORDER 42
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_ILL_CR_TKT 43
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_BADKEYVER 44
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_NOKEY 45
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_MUT_FAIL 46
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_BADDIRECTION 47
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_METHOD 48
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_BADSEQ 49
|
|
#define KRB5_ET_KRB5KRB_AP_ERR_INAPP_CKSUM 50
|
|
#define KRB5_ET_KRB5KDC_AP_PATH_NOT_ACCEPTED 51
|
|
#define KRB5_ET_KRB5KRB_ERR_RESPONSE_TOO_BIG 52
|
|
#define KRB5_ET_KRB5KRB_ERR_GENERIC 60
|
|
#define KRB5_ET_KRB5KRB_ERR_FIELD_TOOLONG 61
|
|
#define KRB5_ET_KDC_ERROR_CLIENT_NOT_TRUSTED 62
|
|
#define KRB5_ET_KDC_ERROR_KDC_NOT_TRUSTED 63
|
|
#define KRB5_ET_KDC_ERROR_INVALID_SIG 64
|
|
#define KRB5_ET_KDC_ERR_KEY_TOO_WEAK 65
|
|
#define KRB5_ET_KDC_ERR_CERTIFICATE_MISMATCH 66
|
|
#define KRB5_ET_KRB_AP_ERR_NO_TGT 67
|
|
#define KRB5_ET_KDC_ERR_WRONG_REALM 68
|
|
#define KRB5_ET_KRB_AP_ERR_USER_TO_USER_REQUIRED 69
|
|
#define KRB5_ET_KDC_ERR_CANT_VERIFY_CERTIFICATE 70
|
|
#define KRB5_ET_KDC_ERR_INVALID_CERTIFICATE 71
|
|
#define KRB5_ET_KDC_ERR_REVOKED_CERTIFICATE 72
|
|
#define KRB5_ET_KDC_ERR_REVOCATION_STATUS_UNKNOWN 73
|
|
#define KRB5_ET_KDC_ERR_REVOCATION_STATUS_UNAVAILABLE 74
|
|
#define KRB5_ET_KDC_ERR_CLIENT_NAME_MISMATCH 75
|
|
#define KRB5_ET_KDC_ERR_KDC_NAME_MISMATCH 76
|
|
|
|
static const value_string krb5_error_codes[] = {
|
|
{ KRB5_ET_KRB5KDC_ERR_NONE, "KRB5KDC_ERR_NONE" },
|
|
{ KRB5_ET_KRB5KDC_ERR_NAME_EXP, "KRB5KDC_ERR_NAME_EXP" },
|
|
{ KRB5_ET_KRB5KDC_ERR_SERVICE_EXP, "KRB5KDC_ERR_SERVICE_EXP" },
|
|
{ KRB5_ET_KRB5KDC_ERR_BAD_PVNO, "KRB5KDC_ERR_BAD_PVNO" },
|
|
{ KRB5_ET_KRB5KDC_ERR_C_OLD_MAST_KVNO, "KRB5KDC_ERR_C_OLD_MAST_KVNO" },
|
|
{ KRB5_ET_KRB5KDC_ERR_S_OLD_MAST_KVNO, "KRB5KDC_ERR_S_OLD_MAST_KVNO" },
|
|
{ KRB5_ET_KRB5KDC_ERR_C_PRINCIPAL_UNKNOWN, "KRB5KDC_ERR_C_PRINCIPAL_UNKNOWN" },
|
|
{ KRB5_ET_KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN, "KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN" },
|
|
{ KRB5_ET_KRB5KDC_ERR_PRINCIPAL_NOT_UNIQUE, "KRB5KDC_ERR_PRINCIPAL_NOT_UNIQUE" },
|
|
{ KRB5_ET_KRB5KDC_ERR_NULL_KEY, "KRB5KDC_ERR_NULL_KEY" },
|
|
{ KRB5_ET_KRB5KDC_ERR_CANNOT_POSTDATE, "KRB5KDC_ERR_CANNOT_POSTDATE" },
|
|
{ KRB5_ET_KRB5KDC_ERR_NEVER_VALID, "KRB5KDC_ERR_NEVER_VALID" },
|
|
{ KRB5_ET_KRB5KDC_ERR_POLICY, "KRB5KDC_ERR_POLICY" },
|
|
{ KRB5_ET_KRB5KDC_ERR_BADOPTION, "KRB5KDC_ERR_BADOPTION" },
|
|
{ KRB5_ET_KRB5KDC_ERR_ETYPE_NOSUPP, "KRB5KDC_ERR_ETYPE_NOSUPP" },
|
|
{ KRB5_ET_KRB5KDC_ERR_SUMTYPE_NOSUPP, "KRB5KDC_ERR_SUMTYPE_NOSUPP" },
|
|
{ KRB5_ET_KRB5KDC_ERR_PADATA_TYPE_NOSUPP, "KRB5KDC_ERR_PADATA_TYPE_NOSUPP" },
|
|
{ KRB5_ET_KRB5KDC_ERR_TRTYPE_NOSUPP, "KRB5KDC_ERR_TRTYPE_NOSUPP" },
|
|
{ KRB5_ET_KRB5KDC_ERR_CLIENT_REVOKED, "KRB5KDC_ERR_CLIENT_REVOKED" },
|
|
{ KRB5_ET_KRB5KDC_ERR_SERVICE_REVOKED, "KRB5KDC_ERR_SERVICE_REVOKED" },
|
|
{ KRB5_ET_KRB5KDC_ERR_TGT_REVOKED, "KRB5KDC_ERR_TGT_REVOKED" },
|
|
{ KRB5_ET_KRB5KDC_ERR_CLIENT_NOTYET, "KRB5KDC_ERR_CLIENT_NOTYET" },
|
|
{ KRB5_ET_KRB5KDC_ERR_SERVICE_NOTYET, "KRB5KDC_ERR_SERVICE_NOTYET" },
|
|
{ KRB5_ET_KRB5KDC_ERR_KEY_EXP, "KRB5KDC_ERR_KEY_EXP" },
|
|
{ KRB5_ET_KRB5KDC_ERR_PREAUTH_FAILED, "KRB5KDC_ERR_PREAUTH_FAILED" },
|
|
{ KRB5_ET_KRB5KDC_ERR_PREAUTH_REQUIRED, "KRB5KDC_ERR_PREAUTH_REQUIRED" },
|
|
{ KRB5_ET_KRB5KDC_ERR_SERVER_NOMATCH, "KRB5KDC_ERR_SERVER_NOMATCH" },
|
|
{ KRB5_ET_KRB5KDC_ERR_MUST_USE_USER2USER, "KRB5KDC_ERR_MUST_USE_USER2USER" },
|
|
{ KRB5_ET_KRB5KDC_ERR_PATH_NOT_ACCEPTED, "KRB5KDC_ERR_PATH_NOT_ACCEPTED" },
|
|
{ KRB5_ET_KRB5KDC_ERR_SVC_UNAVAILABLE, "KRB5KDC_ERR_SVC_UNAVAILABLE" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_BAD_INTEGRITY, "KRB5KRB_AP_ERR_BAD_INTEGRITY" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_TKT_EXPIRED, "KRB5KRB_AP_ERR_TKT_EXPIRED" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_TKT_NYV, "KRB5KRB_AP_ERR_TKT_NYV" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_REPEAT, "KRB5KRB_AP_ERR_REPEAT" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_NOT_US, "KRB5KRB_AP_ERR_NOT_US" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_BADMATCH, "KRB5KRB_AP_ERR_BADMATCH" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_SKEW, "KRB5KRB_AP_ERR_SKEW" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_BADADDR, "KRB5KRB_AP_ERR_BADADDR" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_BADVERSION, "KRB5KRB_AP_ERR_BADVERSION" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_MSG_TYPE, "KRB5KRB_AP_ERR_MSG_TYPE" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_MODIFIED, "KRB5KRB_AP_ERR_MODIFIED" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_BADORDER, "KRB5KRB_AP_ERR_BADORDER" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_ILL_CR_TKT, "KRB5KRB_AP_ERR_ILL_CR_TKT" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_BADKEYVER, "KRB5KRB_AP_ERR_BADKEYVER" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_NOKEY, "KRB5KRB_AP_ERR_NOKEY" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_MUT_FAIL, "KRB5KRB_AP_ERR_MUT_FAIL" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_BADDIRECTION, "KRB5KRB_AP_ERR_BADDIRECTION" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_METHOD, "KRB5KRB_AP_ERR_METHOD" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_BADSEQ, "KRB5KRB_AP_ERR_BADSEQ" },
|
|
{ KRB5_ET_KRB5KRB_AP_ERR_INAPP_CKSUM, "KRB5KRB_AP_ERR_INAPP_CKSUM" },
|
|
{ KRB5_ET_KRB5KDC_AP_PATH_NOT_ACCEPTED, "KRB5KDC_AP_PATH_NOT_ACCEPTED" },
|
|
{ KRB5_ET_KRB5KRB_ERR_RESPONSE_TOO_BIG, "KRB5KRB_ERR_RESPONSE_TOO_BIG"},
|
|
{ KRB5_ET_KRB5KRB_ERR_GENERIC, "KRB5KRB_ERR_GENERIC" },
|
|
{ KRB5_ET_KRB5KRB_ERR_FIELD_TOOLONG, "KRB5KRB_ERR_FIELD_TOOLONG" },
|
|
{ KRB5_ET_KDC_ERROR_CLIENT_NOT_TRUSTED, "KDC_ERROR_CLIENT_NOT_TRUSTED" },
|
|
{ KRB5_ET_KDC_ERROR_KDC_NOT_TRUSTED, "KDC_ERROR_KDC_NOT_TRUSTED" },
|
|
{ KRB5_ET_KDC_ERROR_INVALID_SIG, "KDC_ERROR_INVALID_SIG" },
|
|
{ KRB5_ET_KDC_ERR_KEY_TOO_WEAK, "KDC_ERR_KEY_TOO_WEAK" },
|
|
{ KRB5_ET_KDC_ERR_CERTIFICATE_MISMATCH, "KDC_ERR_CERTIFICATE_MISMATCH" },
|
|
{ KRB5_ET_KRB_AP_ERR_NO_TGT, "KRB_AP_ERR_NO_TGT" },
|
|
{ KRB5_ET_KDC_ERR_WRONG_REALM, "KDC_ERR_WRONG_REALM" },
|
|
{ KRB5_ET_KRB_AP_ERR_USER_TO_USER_REQUIRED, "KRB_AP_ERR_USER_TO_USER_REQUIRED" },
|
|
{ KRB5_ET_KDC_ERR_CANT_VERIFY_CERTIFICATE, "KDC_ERR_CANT_VERIFY_CERTIFICATE" },
|
|
{ KRB5_ET_KDC_ERR_INVALID_CERTIFICATE, "KDC_ERR_INVALID_CERTIFICATE" },
|
|
{ KRB5_ET_KDC_ERR_REVOKED_CERTIFICATE, "KDC_ERR_REVOKED_CERTIFICATE" },
|
|
{ KRB5_ET_KDC_ERR_REVOCATION_STATUS_UNKNOWN, "KDC_ERR_REVOCATION_STATUS_UNKNOWN" },
|
|
{ KRB5_ET_KDC_ERR_REVOCATION_STATUS_UNAVAILABLE, "KDC_ERR_REVOCATION_STATUS_UNAVAILABLE" },
|
|
{ KRB5_ET_KDC_ERR_CLIENT_NAME_MISMATCH, "KDC_ERR_CLIENT_NAME_MISMATCH" },
|
|
{ KRB5_ET_KDC_ERR_KDC_NAME_MISMATCH, "KDC_ERR_KDC_NAME_MISMATCH" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
|
|
#define PAC_LOGON_INFO 1
|
|
#define PAC_CREDENTIAL_TYPE 2
|
|
#define PAC_SERVER_CHECKSUM 6
|
|
#define PAC_PRIVSVR_CHECKSUM 7
|
|
#define PAC_CLIENT_INFO_TYPE 10
|
|
#define PAC_CONSTRAINED_DELEGATION 11
|
|
static const value_string w2k_pac_types[] = {
|
|
{ PAC_LOGON_INFO , "Logon Info" },
|
|
{ PAC_CREDENTIAL_TYPE , "Credential Type" },
|
|
{ PAC_SERVER_CHECKSUM , "Server Checksum" },
|
|
{ PAC_PRIVSVR_CHECKSUM , "Privsvr Checksum" },
|
|
{ PAC_CLIENT_INFO_TYPE , "Client Info Type" },
|
|
{ PAC_CONSTRAINED_DELEGATION, "Constrained Delegation" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
|
|
|
|
static const value_string krb5_princ_types[] = {
|
|
{ KRB5_NT_UNKNOWN , "Unknown" },
|
|
{ KRB5_NT_PRINCIPAL , "Principal" },
|
|
{ KRB5_NT_SRV_INST , "Service and Instance" },
|
|
{ KRB5_NT_SRV_HST , "Service and Host" },
|
|
{ KRB5_NT_SRV_XHST , "Service and Host Components" },
|
|
{ KRB5_NT_UID , "Unique ID" },
|
|
{ KRB5_NT_X500_PRINCIPAL , "Encoded X.509 Distinguished Name" },
|
|
{ KRB5_NT_SMTP_NAME , "SMTP Name" },
|
|
{ KRB5_NT_ENTERPRISE , "Enterprise Name" },
|
|
{ KRB5_NT_MS_PRINCIPAL , "NT 4.0 style name (MS specific)" },
|
|
{ KRB5_NT_MS_PRINCIPAL_AND_SID , "NT 4.0 style name with SID (MS specific)"},
|
|
{ KRB5_NT_ENT_PRINCIPAL_AND_SID, "UPN and SID (MS specific)"},
|
|
{ KRB5_NT_PRINCIPAL_AND_SID , "Principal name and SID (MS specific)"},
|
|
{ KRB5_NT_SRV_INST_AND_SID , "SPN and SID (MS specific)"},
|
|
{ 0 , NULL },
|
|
};
|
|
|
|
static const value_string krb5_preauthentication_types[] = {
|
|
{ KRB5_PA_TGS_REQ , "PA-TGS-REQ" },
|
|
{ KRB5_PA_ENC_TIMESTAMP , "PA-ENC-TIMESTAMP" },
|
|
{ KRB5_PA_PW_SALT , "PA-PW-SALT" },
|
|
{ KRB5_PA_ENC_ENCKEY , "PA-ENC-ENCKEY" },
|
|
{ KRB5_PA_ENC_UNIX_TIME , "PA-ENC-UNIX-TIME" },
|
|
{ KRB5_PA_ENC_SANDIA_SECURID , "PA-PW-SALT" },
|
|
{ KRB5_PA_SESAME , "PA-SESAME" },
|
|
{ KRB5_PA_OSF_DCE , "PA-OSF-DCE" },
|
|
{ KRB5_PA_CYBERSAFE_SECUREID , "PA-CYBERSAFE-SECURID" },
|
|
{ KRB5_PA_AFS3_SALT , "PA-AFS3-SALT" },
|
|
{ KRB5_PA_ENCTYPE_INFO , "PA-ENCTYPE-INFO" },
|
|
{ KRB5_PA_ENCTYPE_INFO2 , "PA-ENCTYPE-INFO2" },
|
|
{ KRB5_PA_SAM_CHALLENGE , "PA-SAM-CHALLENGE" },
|
|
{ KRB5_PA_SAM_RESPONSE , "PA-SAM-RESPONSE" },
|
|
{ KRB5_PA_PK_AS_REQ , "PA-PK-AS-REQ" },
|
|
{ KRB5_PA_PK_AS_REP , "PA-PK-AS-REP" },
|
|
{ KRB5_PA_DASS , "PA-DASS" },
|
|
{ KRB5_PA_USE_SPECIFIED_KVNO , "PA-USE-SPECIFIED-KVNO" },
|
|
{ KRB5_PA_SAM_REDIRECT , "PA-SAM-REDIRECT" },
|
|
{ KRB5_PA_GET_FROM_TYPED_DATA , "PA-GET-FROM-TYPED-DATA" },
|
|
{ KRB5_PA_SAM_ETYPE_INFO , "PA-SAM-ETYPE-INFO" },
|
|
{ KRB5_PA_ALT_PRINC , "PA-ALT-PRINC" },
|
|
{ KRB5_PA_SAM_CHALLENGE2 , "PA-SAM-CHALLENGE2" },
|
|
{ KRB5_PA_SAM_RESPONSE2 , "PA-SAM-RESPONSE2" },
|
|
{ KRB5_TD_PKINIT_CMS_CERTIFICATES, "TD-PKINIT-CMS-CERTIFICATES" },
|
|
{ KRB5_TD_KRB_PRINCIPAL , "TD-KRB-PRINCIPAL" },
|
|
{ KRB5_TD_KRB_REALM , "TD-KRB-REALM" },
|
|
{ KRB5_TD_TRUSTED_CERTIFIERS , "TD-TRUSTED-CERTIFIERS" },
|
|
{ KRB5_TD_CERTIFICATE_INDEX , "TD-CERTIFICATE-INDEX" },
|
|
{ KRB5_TD_APP_DEFINED_ERROR , "TD-APP-DEFINED-ERROR" },
|
|
{ KRB5_TD_REQ_NONCE , "TD-REQ-NONCE" },
|
|
{ KRB5_TD_REQ_SEQ , "TD-REQ-SEQ" },
|
|
{ KRB5_PA_PAC_REQUEST , "PA-PAC-REQUEST" },
|
|
{ KRB5_PA_S4U2SELF , "PA-S4U2SELF" },
|
|
{ KRB5_PA_PROV_SRV_LOCATION , "PA-PROV-SRV-LOCATION" },
|
|
{ 0 , NULL },
|
|
};
|
|
|
|
static const value_string krb5_encryption_types[] = {
|
|
{ KRB5_ENCTYPE_NULL , "NULL" },
|
|
{ KRB5_ENCTYPE_DES_CBC_CRC , "des-cbc-crc" },
|
|
{ KRB5_ENCTYPE_DES_CBC_MD4 , "des-cbc-md4" },
|
|
{ KRB5_ENCTYPE_DES_CBC_MD5 , "des-cbc-md5" },
|
|
{ KRB5_ENCTYPE_DES_CBC_RAW , "des-cbc-raw" },
|
|
{ KRB5_ENCTYPE_DES3_CBC_SHA , "des3-cbc-sha" },
|
|
{ KRB5_ENCTYPE_DES3_CBC_RAW , "des3-cbc-raw" },
|
|
{ KRB5_ENCTYPE_DES_HMAC_SHA1 , "des-hmac-sha1" },
|
|
{ KRB5_ENCTYPE_DSA_SHA1_CMS , "dsa-sha1-cms" },
|
|
{ KRB5_ENCTYPE_RSA_MD5_CMS , "rsa-md5-cms" },
|
|
{ KRB5_ENCTYPE_RSA_SHA1_CMS , "rsa-sha1-cms" },
|
|
{ KRB5_ENCTYPE_RC2_CBC_ENV , "rc2-cbc-env" },
|
|
{ KRB5_ENCTYPE_RSA_ENV , "rsa-env" },
|
|
{ KRB5_ENCTYPE_RSA_ES_OEAP_ENV, "rsa-es-oeap-env" },
|
|
{ KRB5_ENCTYPE_DES_EDE3_CBC_ENV, "des-ede3-cbc-env" },
|
|
{ KRB5_ENCTYPE_DES3_CBC_SHA1 , "des3-cbc-sha1" },
|
|
{ KRB5_ENCTYPE_AES128_CTS_HMAC_SHA1_96 , "aes128-cts-hmac-sha1-96" },
|
|
{ KRB5_ENCTYPE_AES256_CTS_HMAC_SHA1_96 , "aes256-cts-hmac-sha1-96" },
|
|
{ KRB5_ENCTYPE_DES_CBC_MD5_NT , "des-cbc-md5-nt" },
|
|
{ KERB_ENCTYPE_RC4_HMAC , "rc4-hmac" },
|
|
{ KERB_ENCTYPE_RC4_HMAC_EXP , "rc4-hmac-exp" },
|
|
{ KRB5_ENCTYPE_UNKNOWN , "unknown" },
|
|
{ KRB5_ENCTYPE_LOCAL_DES3_HMAC_SHA1 , "local-des3-hmac-sha1" },
|
|
{ KRB5_ENCTYPE_RC4_PLAIN_EXP , "rc4-plain-exp" },
|
|
{ KRB5_ENCTYPE_RC4_PLAIN , "rc4-plain" },
|
|
{ KRB5_ENCTYPE_RC4_PLAIN_OLD_EXP, "rc4-plain-old-exp" },
|
|
{ KRB5_ENCTYPE_RC4_HMAC_OLD_EXP, "rc4-hmac-old-exp" },
|
|
{ KRB5_ENCTYPE_RC4_PLAIN_OLD , "rc4-plain-old" },
|
|
{ KRB5_ENCTYPE_RC4_HMAC_OLD , "rc4-hmac-old" },
|
|
{ KRB5_ENCTYPE_DES_PLAIN , "des-plain" },
|
|
{ KRB5_ENCTYPE_RC4_SHA , "rc4-sha" },
|
|
{ KRB5_ENCTYPE_RC4_LM , "rc4-lm" },
|
|
{ KRB5_ENCTYPE_RC4_PLAIN2 , "rc4-plain2" },
|
|
{ KRB5_ENCTYPE_RC4_MD4 , "rc4-md4" },
|
|
{ 0 , NULL },
|
|
};
|
|
|
|
static const value_string krb5_checksum_types[] = {
|
|
{ KRB5_CHKSUM_NONE , "none" },
|
|
{ KRB5_CHKSUM_CRC32 , "crc32" },
|
|
{ KRB5_CHKSUM_MD4 , "md4" },
|
|
{ KRB5_CHKSUM_KRB_DES_MAC , "krb-des-mac" },
|
|
{ KRB5_CHKSUM_KRB_DES_MAC_K , "krb-des-mac-k" },
|
|
{ KRB5_CHKSUM_MD5 , "md5" },
|
|
{ KRB5_CHKSUM_MD5_DES , "md5-des" },
|
|
{ KRB5_CHKSUM_MD5_DES3 , "md5-des3" },
|
|
{ KRB5_CHKSUM_HMAC_SHA1_DES3_KD, "hmac-sha1-des3-kd" },
|
|
{ KRB5_CHKSUM_HMAC_SHA1_DES3 , "hmac-sha1-des3" },
|
|
{ KRB5_CHKSUM_SHA1_UNKEYED , "sha1 (unkeyed)" },
|
|
{ KRB5_CHKSUM_HMAC_MD5 , "hmac-md5" },
|
|
{ KRB5_CHKSUM_MD5_HMAC , "md5-hmac" },
|
|
{ KRB5_CHKSUM_RC4_MD5 , "rc5-md5" },
|
|
{ KRB5_CHKSUM_MD25 , "md25" },
|
|
{ KRB5_CHKSUM_DES_MAC_MD5 , "des-mac-md5" },
|
|
{ KRB5_CHKSUM_DES_MAC , "des-mac" },
|
|
{ KRB5_CHKSUM_REAL_CRC32 , "real-crc32" },
|
|
{ KRB5_CHKSUM_SHA1 , "sha1" },
|
|
{ KRB5_CHKSUM_LM , "lm" },
|
|
{ KRB5_CHKSUM_GSSAPI , "gssapi-8003" },
|
|
{ 0 , NULL },
|
|
};
|
|
|
|
#define KRB5_AD_IF_RELEVANT 1
|
|
#define KRB5_AD_INTENDED_FOR_SERVER 2
|
|
#define KRB5_AD_INTENDED_FOR_APPLICATION_CLASS 3
|
|
#define KRB5_AD_KDC_ISSUED 4
|
|
#define KRB5_AD_OR 5
|
|
#define KRB5_AD_MANDATORY_TICKET_EXTENSIONS 6
|
|
#define KRB5_AD_IN_TICKET_EXTENSIONS 7
|
|
#define KRB5_AD_MANDATORY_FOR_KDC 8
|
|
#define KRB5_AD_OSF_DCE 64
|
|
#define KRB5_AD_SESAME 65
|
|
#define KRB5_AD_OSF_DCE_PKI_CERTID 66
|
|
#define KRB5_AD_WIN2K_PAC 128
|
|
#define KRB5_AD_SIGNTICKET 0xffffffef
|
|
static const value_string krb5_ad_types[] = {
|
|
{ KRB5_AD_IF_RELEVANT , "AD-IF-RELEVANT" },
|
|
{ KRB5_AD_INTENDED_FOR_SERVER , "AD-Intended-For-Server" },
|
|
{ KRB5_AD_INTENDED_FOR_APPLICATION_CLASS , "AD-Intended-For-Application-Class" },
|
|
{ KRB5_AD_KDC_ISSUED , "AD-KDCIssued" },
|
|
{ KRB5_AD_OR , "AD-AND-OR" },
|
|
{ KRB5_AD_MANDATORY_TICKET_EXTENSIONS , "AD-Mandatory-Ticket-Extensions" },
|
|
{ KRB5_AD_IN_TICKET_EXTENSIONS , "AD-IN-Ticket-Extensions" },
|
|
{ KRB5_AD_MANDATORY_FOR_KDC , "AD-MANDATORY-FOR-KDC" },
|
|
{ KRB5_AD_OSF_DCE , "AD-OSF-DCE" },
|
|
{ KRB5_AD_SESAME , "AD-SESAME" },
|
|
{ KRB5_AD_OSF_DCE_PKI_CERTID , "AD-OSF-DCE-PKI-CertID" },
|
|
{ KRB5_AD_WIN2K_PAC , "AD-Win2k-PAC" },
|
|
{ KRB5_AD_SIGNTICKET , "AD-SignTicket" },
|
|
{ 0 , NULL },
|
|
};
|
|
|
|
static const value_string krb5_transited_types[] = {
|
|
{ 1 , "DOMAIN-X500-COMPRESS" },
|
|
{ 0 , NULL }
|
|
};
|
|
|
|
static const value_string krb5_address_types[] = {
|
|
{ KRB5_ADDR_IPv4, "IPv4"},
|
|
{ KRB5_ADDR_CHAOS, "CHAOS"},
|
|
{ KRB5_ADDR_XEROX, "XEROX"},
|
|
{ KRB5_ADDR_ISO, "ISO"},
|
|
{ KRB5_ADDR_DECNET, "DECNET"},
|
|
{ KRB5_ADDR_APPLETALK, "APPLETALK"},
|
|
{ KRB5_ADDR_NETBIOS, "NETBIOS"},
|
|
{ KRB5_ADDR_IPv6, "IPv6"},
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string krb5_msg_types[] = {
|
|
{ KRB5_MSG_TICKET, "Ticket" },
|
|
{ KRB5_MSG_AUTHENTICATOR, "Authenticator" },
|
|
{ KRB5_MSG_ENC_TICKET_PART, "EncTicketPart" },
|
|
{ KRB5_MSG_TGS_REQ, "TGS-REQ" },
|
|
{ KRB5_MSG_TGS_REP, "TGS-REP" },
|
|
{ KRB5_MSG_AS_REQ, "AS-REQ" },
|
|
{ KRB5_MSG_AS_REP, "AS-REP" },
|
|
{ KRB5_MSG_AP_REQ, "AP-REQ" },
|
|
{ KRB5_MSG_AP_REP, "AP-REP" },
|
|
{ KRB5_MSG_SAFE, "KRB-SAFE" },
|
|
{ KRB5_MSG_PRIV, "KRB-PRIV" },
|
|
{ KRB5_MSG_CRED, "KRB-CRED" },
|
|
{ KRB5_MSG_ENC_AS_REP_PART, "EncASRepPart" },
|
|
{ KRB5_MSG_ENC_TGS_REP_PART, "EncTGSRepPart" },
|
|
{ KRB5_MSG_ENC_AP_REP_PART, "EncAPRepPart" },
|
|
{ KRB5_MSG_ENC_KRB_PRIV_PART, "EncKrbPrivPart" },
|
|
{ KRB5_MSG_ENC_KRB_CRED_PART, "EncKrbCredPart" },
|
|
{ KRB5_MSG_ERROR, "KRB-ERROR" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
|
|
|
|
|
|
static int dissect_krb5_application_choice(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);
|
|
static int dissect_krb5_Application_1(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);
|
|
static int dissect_krb5_Authenticator(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);
|
|
static int dissect_krb5_EncTicketPart(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);
|
|
static int dissect_krb5_EncAPRepPart(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);
|
|
static int dissect_krb5_EncKrbPrivPart(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);
|
|
static int dissect_krb5_EncKrbCredPart(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);
|
|
static int dissect_krb5_EncKDCRepPart(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);
|
|
static int dissect_krb5_KDC_REQ(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);
|
|
static int dissect_krb5_KDC_REP(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);
|
|
static int dissect_krb5_AP_REQ(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);
|
|
static int dissect_krb5_AP_REP(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);
|
|
static int dissect_krb5_SAFE(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);
|
|
static int dissect_krb5_PRIV(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);
|
|
static int dissect_krb5_CRED(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);
|
|
static int dissect_krb5_ERROR(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);
|
|
|
|
static const ber_old_choice_t kerberos_applications_choice[] = {
|
|
{ KRB5_MSG_TICKET, BER_CLASS_APP, KRB5_MSG_TICKET, 0, dissect_krb5_Application_1 },
|
|
{ KRB5_MSG_AUTHENTICATOR, BER_CLASS_APP, KRB5_MSG_AUTHENTICATOR, 0, dissect_krb5_Authenticator },
|
|
{ KRB5_MSG_ENC_TICKET_PART, BER_CLASS_APP, KRB5_MSG_ENC_TICKET_PART, 0, dissect_krb5_EncTicketPart },
|
|
{ KRB5_MSG_AS_REQ, BER_CLASS_APP, KRB5_MSG_AS_REQ, 0, dissect_krb5_KDC_REQ },
|
|
{ KRB5_MSG_AS_REP, BER_CLASS_APP, KRB5_MSG_AS_REP, 0, dissect_krb5_KDC_REP },
|
|
{ KRB5_MSG_TGS_REQ, BER_CLASS_APP, KRB5_MSG_TGS_REQ, 0, dissect_krb5_KDC_REQ },
|
|
{ KRB5_MSG_TGS_REP, BER_CLASS_APP, KRB5_MSG_TGS_REP, 0, dissect_krb5_KDC_REP },
|
|
{ KRB5_MSG_AP_REQ, BER_CLASS_APP, KRB5_MSG_AP_REQ, 0, dissect_krb5_AP_REQ },
|
|
{ KRB5_MSG_AP_REP, BER_CLASS_APP, KRB5_MSG_AP_REP, 0, dissect_krb5_AP_REP },
|
|
{ KRB5_MSG_ENC_AS_REP_PART, BER_CLASS_APP, KRB5_MSG_ENC_AS_REP_PART, 0, dissect_krb5_EncKDCRepPart },
|
|
{ KRB5_MSG_ENC_TGS_REP_PART, BER_CLASS_APP, KRB5_MSG_ENC_TGS_REP_PART, 0, dissect_krb5_EncKDCRepPart },
|
|
{ KRB5_MSG_ENC_AP_REP_PART, BER_CLASS_APP, KRB5_MSG_ENC_AP_REP_PART, 0, dissect_krb5_EncAPRepPart },
|
|
{ KRB5_MSG_ENC_KRB_PRIV_PART, BER_CLASS_APP, KRB5_MSG_ENC_KRB_PRIV_PART, 0, dissect_krb5_EncKrbPrivPart },
|
|
{ KRB5_MSG_ENC_KRB_CRED_PART, BER_CLASS_APP, KRB5_MSG_ENC_KRB_CRED_PART, 0, dissect_krb5_EncKrbCredPart },
|
|
{ KRB5_MSG_SAFE, BER_CLASS_APP, KRB5_MSG_SAFE, 0, dissect_krb5_SAFE },
|
|
{ KRB5_MSG_PRIV, BER_CLASS_APP, KRB5_MSG_PRIV, 0, dissect_krb5_PRIV },
|
|
{ KRB5_MSG_CRED, BER_CLASS_APP, KRB5_MSG_CRED, 0, dissect_krb5_CRED },
|
|
{ KRB5_MSG_ERROR, BER_CLASS_APP, KRB5_MSG_ERROR, 0, dissect_krb5_ERROR },
|
|
{ 0, 0, 0, 0, NULL }
|
|
};
|
|
|
|
|
|
static int
|
|
dissect_krb5_application_choice(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_choice(actx, tree, tvb, offset, kerberos_applications_choice, -1, -1, NULL);
|
|
return offset;
|
|
}
|
|
|
|
|
|
static const true_false_string krb5_apoptions_use_session_key = {
|
|
"USE SESSION KEY to encrypt the ticket",
|
|
"Do NOT use the session key to encrypt the ticket"
|
|
};
|
|
static const true_false_string krb5_apoptions_mutual_required = {
|
|
"MUTUAL authentication is REQUIRED",
|
|
"Mutual authentication is NOT required"
|
|
};
|
|
|
|
static int *APOptions_bits[] = {
|
|
&hf_krb_APOptions_use_session_key,
|
|
&hf_krb_APOptions_mutual_required,
|
|
NULL
|
|
};
|
|
static int
|
|
dissect_krb5_APOptions(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_bitstring32(FALSE, actx, tree, tvb, offset, APOptions_bits, hf_krb_APOptions, ett_krb_AP_Options, NULL);
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
static const true_false_string krb5_kdcoptions_forwardable = {
|
|
"FORWARDABLE tickets are allowed/requested",
|
|
"Do NOT use forwardable tickets"
|
|
};
|
|
static const true_false_string krb5_kdcoptions_forwarded = {
|
|
"This ticket has been FORWARDED",
|
|
"This is NOT a forwarded ticket"
|
|
};
|
|
static const true_false_string krb5_kdcoptions_proxyable = {
|
|
"PROXIABLE tickets are allowed/requested",
|
|
"Do NOT use proxiable tickets"
|
|
};
|
|
static const true_false_string krb5_kdcoptions_proxy = {
|
|
"This is a PROXY ticket",
|
|
"This ticket has NOT been proxied"
|
|
};
|
|
static const true_false_string krb5_kdcoptions_allow_postdate = {
|
|
"We allow the ticket to be POSTDATED",
|
|
"We do NOT allow the ticket to be postdated"
|
|
};
|
|
static const true_false_string krb5_kdcoptions_postdated = {
|
|
"This ticket is POSTDATED",
|
|
"This ticket is NOT postdated"
|
|
};
|
|
static const true_false_string krb5_kdcoptions_renewable = {
|
|
"This ticket is RENEWABLE",
|
|
"This ticket is NOT renewable"
|
|
};
|
|
static const true_false_string krb5_kdcoptions_constrained_delegation = {
|
|
"This is a request for a CONSTRAINED DELEGATION PAC",
|
|
"This is a normal request (no constrained delegation)"
|
|
};
|
|
static const true_false_string krb5_kdcoptions_canonicalize = {
|
|
"This is a request for a CANONICALIZED ticket",
|
|
"This is NOT a canonicalized ticket request"
|
|
};
|
|
static const true_false_string krb5_kdcoptions_disable_transited_check = {
|
|
"Transited checking is DISABLED",
|
|
"Transited checking is NOT disabled"
|
|
};
|
|
static const true_false_string krb5_kdcoptions_renewable_ok = {
|
|
"We accept RENEWED tickets",
|
|
"We do NOT accept renewed tickets"
|
|
};
|
|
static const true_false_string krb5_kdcoptions_enc_tkt_in_skey = {
|
|
"ENCrypt TKT in SKEY",
|
|
"Do NOT encrypt the tkt inside the skey"
|
|
};
|
|
static const true_false_string krb5_kdcoptions_renew = {
|
|
"This is a request to RENEW a ticket",
|
|
"This is NOT a request to renew a ticket"
|
|
};
|
|
static const true_false_string krb5_kdcoptions_validate = {
|
|
"This is a request to VALIDATE a postdated ticket",
|
|
"This is NOT a request to validate a postdated ticket"
|
|
};
|
|
|
|
static int* KDCOptions_bits[] = {
|
|
&hf_krb_KDCOptions_forwardable,
|
|
&hf_krb_KDCOptions_forwarded,
|
|
&hf_krb_KDCOptions_proxyable,
|
|
&hf_krb_KDCOptions_proxy,
|
|
&hf_krb_KDCOptions_allow_postdate,
|
|
&hf_krb_KDCOptions_postdated,
|
|
&hf_krb_KDCOptions_renewable,
|
|
&hf_krb_KDCOptions_opt_hardware_auth,
|
|
&hf_krb_KDCOptions_constrained_delegation,
|
|
&hf_krb_KDCOptions_canonicalize,
|
|
&hf_krb_KDCOptions_disable_transited_check,
|
|
&hf_krb_KDCOptions_renewable_ok,
|
|
&hf_krb_KDCOptions_enc_tkt_in_skey,
|
|
&hf_krb_KDCOptions_renew,
|
|
&hf_krb_KDCOptions_validate,
|
|
NULL
|
|
};
|
|
|
|
static int
|
|
dissect_krb5_KDCOptions(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_bitstring32(FALSE, actx, tree, tvb, offset, KDCOptions_bits, hf_krb_KDCOptions, ett_krb_KDC_Options, NULL);
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_rtime(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralizedTime(FALSE, actx, tree, tvb, offset, hf_krb_rtime);
|
|
return offset;
|
|
}
|
|
|
|
int
|
|
dissect_krb5_ctime(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralizedTime(FALSE, actx, tree, tvb, offset, hf_krb_ctime);
|
|
return offset;
|
|
}
|
|
static int
|
|
dissect_krb5_cusec(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_cusec, NULL);
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_stime(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralizedTime(FALSE, actx, tree, tvb, offset, hf_krb_stime);
|
|
return offset;
|
|
}
|
|
static int
|
|
dissect_krb5_susec(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_susec, NULL);
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
dissect_krb5_error_code(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_error_code, &krb5_errorcode);
|
|
if(krb5_errorcode && check_col(actx->pinfo->cinfo, COL_INFO)) {
|
|
col_add_fstr(actx->pinfo->cinfo, COL_INFO,
|
|
"KRB Error: %s",
|
|
val_to_str(krb5_errorcode, krb5_error_codes,
|
|
"Unknown error code %#x"));
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
dissect_krb5_till(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralizedTime(FALSE, actx, tree, tvb, offset, hf_krb_till);
|
|
return offset;
|
|
}
|
|
static int
|
|
dissect_krb5_from(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralizedTime(FALSE, actx, tree, tvb, offset, hf_krb_from);
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
dissect_krb5_nonce(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_nonce, NULL);
|
|
return offset;
|
|
}
|
|
|
|
|
|
/*
|
|
* etype[8] SEQUENCE OF INTEGER, -- EncryptionType,
|
|
*/
|
|
static int
|
|
dissect_krb5_etype(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
guint32 etype;
|
|
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_etype, &etype);
|
|
if(tree){
|
|
proto_item_append_text(tree, " %s",
|
|
val_to_str(etype, krb5_encryption_types,
|
|
"%d"));
|
|
}
|
|
return offset;
|
|
}
|
|
static ber_old_sequence_t etype_sequence_of[1] = {
|
|
{ BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_krb5_etype },
|
|
};
|
|
static int
|
|
dissect_krb5_etype_sequence_of(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence_of(FALSE, actx, tree, tvb, offset, etype_sequence_of, hf_krb_etypes, ett_krb_etypes);
|
|
|
|
return offset;
|
|
}
|
|
static guint32 authenticator_etype;
|
|
static int
|
|
dissect_krb5_authenticator_etype(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_etype, &authenticator_etype);
|
|
if(tree){
|
|
proto_item_append_text(tree, " %s",
|
|
val_to_str(authenticator_etype, krb5_encryption_types,
|
|
"%#x"));
|
|
}
|
|
return offset;
|
|
}
|
|
static guint32 Ticket_etype;
|
|
static int
|
|
dissect_krb5_Ticket_etype(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_etype, &Ticket_etype);
|
|
if(tree){
|
|
proto_item_append_text(tree, " %s",
|
|
val_to_str(Ticket_etype, krb5_encryption_types,
|
|
"%#x"));
|
|
}
|
|
return offset;
|
|
}
|
|
static guint32 AP_REP_etype;
|
|
static int
|
|
dissect_krb5_AP_REP_etype(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_etype, &AP_REP_etype);
|
|
if(tree){
|
|
proto_item_append_text(tree, " %s",
|
|
val_to_str(AP_REP_etype, krb5_encryption_types,
|
|
"%#x"));
|
|
}
|
|
return offset;
|
|
}
|
|
static guint32 PA_ENC_TIMESTAMP_etype;
|
|
static int
|
|
dissect_krb5_PA_ENC_TIMESTAMP_etype(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_etype, &PA_ENC_TIMESTAMP_etype);
|
|
if(tree){
|
|
proto_item_append_text(tree, " %s",
|
|
val_to_str(PA_ENC_TIMESTAMP_etype, krb5_encryption_types,
|
|
"%#x"));
|
|
}
|
|
return offset;
|
|
}
|
|
|
|
|
|
/*
|
|
* HostAddress ::= SEQUENCE {
|
|
* addr-type[0] INTEGER,
|
|
* address[1] OCTET STRING
|
|
* }
|
|
*/
|
|
static guint32 addr_type;
|
|
static int dissect_krb5_addr_type(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_addr_type, &addr_type);
|
|
return offset;
|
|
}
|
|
static int dissect_krb5_address(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
gint8 class;
|
|
gboolean pc;
|
|
gint32 tag;
|
|
guint32 len;
|
|
char *address_str;
|
|
proto_item *it=NULL;
|
|
|
|
/* read header and len for the octet string */
|
|
offset=dissect_ber_identifier(actx->pinfo, tree, tvb, offset, &class, &pc, &tag);
|
|
offset=dissect_ber_length(actx->pinfo, tree, tvb, offset, &len, NULL);
|
|
|
|
address_str=ep_alloc(256);
|
|
address_str[0]=0;
|
|
address_str[255]=0;
|
|
switch(addr_type){
|
|
case KRB5_ADDR_IPv4:
|
|
it=proto_tree_add_item(tree, hf_krb_address_ip, tvb, offset, 4, FALSE);
|
|
g_snprintf(address_str,256,"%d.%d.%d.%d",tvb_get_guint8(tvb, offset),tvb_get_guint8(tvb, offset+1),tvb_get_guint8(tvb, offset+2),tvb_get_guint8(tvb, offset+3));
|
|
break;
|
|
case KRB5_ADDR_NETBIOS:
|
|
{
|
|
char netbios_name[(NETBIOS_NAME_LEN - 1)*4 + 1];
|
|
int netbios_name_type;
|
|
int netbios_name_len = (NETBIOS_NAME_LEN - 1)*4 + 1;
|
|
|
|
netbios_name_type = process_netbios_name(tvb_get_ptr(tvb, offset, 16), netbios_name, netbios_name_len);
|
|
g_snprintf(address_str, 255, "%s<%02x>", netbios_name, netbios_name_type);
|
|
it=proto_tree_add_string_format(tree, hf_krb_address_netbios, tvb, offset, 16, netbios_name, "NetBIOS Name: %s (%s)", address_str, netbios_name_type_descr(netbios_name_type));
|
|
}
|
|
break;
|
|
default:
|
|
proto_tree_add_text(tree, tvb, offset, len, "KRB Address: I dont know how to parse this type of address yet");
|
|
|
|
}
|
|
|
|
/* push it up two levels in the decode pane */
|
|
if(it){
|
|
proto_item_append_text(proto_item_get_parent(it), " %s",address_str);
|
|
proto_item_append_text(proto_item_get_parent_nth(it, 2), " %s",address_str);
|
|
}
|
|
|
|
offset+=len;
|
|
return offset;
|
|
}
|
|
static ber_old_sequence_t HostAddress_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0, dissect_krb5_addr_type },
|
|
{ BER_CLASS_CON, 1, 0, dissect_krb5_address },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_HostAddress(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, HostAddress_sequence, hf_krb_HostAddress, ett_krb_HostAddress);
|
|
|
|
return offset;
|
|
}
|
|
static int
|
|
dissect_krb5_s_address(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, HostAddress_sequence, hf_krb_s_address, ett_krb_s_address);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_r_address(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, HostAddress_sequence, hf_krb_r_address, ett_krb_r_address);
|
|
|
|
return offset;
|
|
}
|
|
|
|
/*
|
|
* HostAddresses ::= SEQUENCE OF SEQUENCE {
|
|
* addr-type[0] INTEGER,
|
|
* address[1] OCTET STRING
|
|
* }
|
|
*
|
|
*/
|
|
static ber_old_sequence_t HostAddresses_sequence_of[1] = {
|
|
{ BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_krb5_HostAddress },
|
|
};
|
|
static int
|
|
dissect_krb5_HostAddresses(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence_of(FALSE, actx, tree, tvb, offset, HostAddresses_sequence_of, hf_krb_HostAddresses, ett_krb_HostAddresses);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
/* sequence of tickets */
|
|
static ber_old_sequence_t sequence_of_tickets[1] = {
|
|
{ BER_CLASS_APP, 1, 0, dissect_krb5_Application_1},
|
|
};
|
|
static int
|
|
dissect_krb5_sq_tickets(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence_of(FALSE, actx, tree, tvb, offset, sequence_of_tickets, hf_krb_sq_tickets, ett_krb_sq_tickets);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_msg_type(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
guint32 msgtype;
|
|
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_msg_type, &msgtype);
|
|
|
|
if (do_col_info & check_col(actx->pinfo->cinfo, COL_INFO)) {
|
|
col_add_str(actx->pinfo->cinfo, COL_INFO,
|
|
val_to_str(msgtype, krb5_msg_types,
|
|
"Unknown msg type %#x"));
|
|
}
|
|
do_col_info=FALSE;
|
|
|
|
/* append the application type to the subtree */
|
|
proto_item_append_text(tree, " %s", val_to_str(msgtype, krb5_msg_types, "Unknown:0x%x"));
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
dissect_krb5_pvno(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_pvno, NULL);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
/*
|
|
* PrincipalName ::= SEQUENCE {
|
|
* name-type[0] INTEGER,
|
|
* name-string[1] SEQUENCE OF GeneralString
|
|
* }
|
|
*/
|
|
guint32 name_type;
|
|
static int
|
|
dissect_krb5_name_type(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_name_type, &name_type);
|
|
if(tree){
|
|
proto_item_append_text(tree, " (%s):",
|
|
val_to_str(name_type, krb5_princ_types,
|
|
"Unknown:%d"));
|
|
}
|
|
return offset;
|
|
}
|
|
static char name_string_separator;
|
|
static int
|
|
dissect_krb5_name_string(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
char name_string[256];
|
|
|
|
offset=dissect_ber_GeneralString(actx, tree, tvb, offset, hf_krb_name_string, name_string, 255);
|
|
if(tree){
|
|
proto_item_append_text(tree, "%c%s", name_string_separator, name_string);
|
|
name_string_separator='/';
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
static ber_old_sequence_t name_stringe_sequence_of[1] = {
|
|
{ BER_CLASS_UNI, BER_UNI_TAG_GeneralString, BER_FLAGS_NOOWNTAG, dissect_krb5_name_string },
|
|
};
|
|
static int
|
|
dissect_krb5_name_strings(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
name_string_separator=' ';
|
|
offset=dissect_ber_old_sequence_of(FALSE, actx, tree, tvb, offset, name_stringe_sequence_of, -1, -1);
|
|
|
|
return offset;
|
|
}
|
|
static ber_old_sequence_t PrincipalName_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0, dissect_krb5_name_type },
|
|
{ BER_CLASS_CON, 1, 0, dissect_krb5_name_strings },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_sname(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, PrincipalName_sequence, hf_krb_sname, ett_krb_sname);
|
|
|
|
return offset;
|
|
}
|
|
static int
|
|
dissect_krb5_pname(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, PrincipalName_sequence, hf_krb_pname, ett_krb_pname);
|
|
|
|
return offset;
|
|
}
|
|
int
|
|
dissect_krb5_cname(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, PrincipalName_sequence, hf_krb_cname, ett_krb_cname);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
int
|
|
dissect_krb5_prealm(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralString(actx, tree, tvb, offset, hf_krb_prealm, NULL, 0);
|
|
return offset;
|
|
}
|
|
|
|
int
|
|
dissect_krb5_srealm(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralString(actx, tree, tvb, offset, hf_krb_srealm, NULL, 0);
|
|
return offset;
|
|
}
|
|
|
|
int
|
|
dissect_krb5_realm(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralString(actx, tree, tvb, offset, hf_krb_realm, NULL, 0);
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_crealm(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralString(actx, tree, tvb, offset, hf_krb_crealm, NULL, 0);
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
dissect_krb5_PA_PAC_REQUEST_flag(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_boolean(FALSE, actx, tree, tvb, offset, hf_krb_PA_PAC_REQUEST_flag, NULL);
|
|
return offset;
|
|
}
|
|
|
|
|
|
static ber_old_sequence_t PA_PAC_REQUEST_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0, dissect_krb5_PA_PAC_REQUEST_flag },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_PA_PAC_REQUEST(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, PA_PAC_REQUEST_sequence, -1, -1);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_s4u2self_auth(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralString(actx, tree, tvb, offset, hf_krb_s4u2self_auth, NULL, 0);
|
|
return offset;
|
|
}
|
|
|
|
static ber_old_sequence_t PA_S4U2SELF_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0, dissect_krb5_cname },
|
|
{ BER_CLASS_CON, 1, 0, dissect_krb5_realm },
|
|
{ BER_CLASS_CON, 2, 0, dissect_krb5_Checksum },
|
|
{ BER_CLASS_CON, 3, 0, dissect_krb5_s4u2self_auth },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
|
|
static int
|
|
dissect_krb5_PA_S4U2SELF(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, PA_S4U2SELF_sequence, -1, -1);
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
dissect_krb5_PA_PROV_SRV_LOCATION(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralString(actx, tree, tvb, offset, hf_krb_provsrv_location, NULL, 0);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
dissect_krb5_kvno(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_kvno, NULL);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
dissect_krb5_seq_number(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_seq_number, NULL);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
dissect_krb5_patimestamp(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralizedTime(FALSE, actx, tree, tvb, offset, hf_krb_patimestamp);
|
|
return offset;
|
|
}
|
|
#ifdef HAVE_KERBEROS
|
|
static int
|
|
dissect_krb5_pausec(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_pausec, NULL);
|
|
return offset;
|
|
}
|
|
static const ber_old_sequence_t PA_ENC_TS_ENC_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0, dissect_krb5_patimestamp },
|
|
{ BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL, dissect_krb5_pausec },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_decrypt_PA_ENC_TIMESTAMP (proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
guint8 *plaintext=NULL;
|
|
int length;
|
|
|
|
length=tvb_length_remaining(tvb, offset);
|
|
|
|
/* draft-ietf-krb-wg-kerberos-clarifications-05.txt :
|
|
* 7.5.1
|
|
* AS-REQ PA_ENC_TIMESTAMP are encrypted with usage
|
|
* == 1
|
|
*/
|
|
if(!plaintext){
|
|
plaintext=decrypt_krb5_data(tree, actx->pinfo, 1, length, tvb_get_ptr(tvb, offset, length), PA_ENC_TIMESTAMP_etype);
|
|
}
|
|
|
|
if(plaintext){
|
|
tvbuff_t *next_tvb;
|
|
next_tvb = tvb_new_real_data (plaintext,
|
|
length,
|
|
length);
|
|
tvb_set_free_cb(next_tvb, g_free);
|
|
tvb_set_child_real_data_tvbuff(tvb, next_tvb);
|
|
|
|
/* Add the decrypted data to the data source list. */
|
|
add_new_data_source(actx->pinfo, next_tvb, "Decrypted Krb5");
|
|
|
|
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, next_tvb, 0, PA_ENC_TS_ENC_sequence, -1, -1);
|
|
|
|
}
|
|
return offset;
|
|
}
|
|
#endif
|
|
|
|
|
|
static int
|
|
dissect_krb5_encrypted_PA_ENC_TIMESTAMP(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
#ifdef HAVE_KERBEROS
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_encrypted_PA_ENC_TIMESTAMP, dissect_krb5_decrypt_PA_ENC_TIMESTAMP);
|
|
#else
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_encrypted_PA_ENC_TIMESTAMP, NULL);
|
|
#endif
|
|
return offset;
|
|
}
|
|
static ber_old_sequence_t PA_ENC_TIMESTAMP_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_PA_ENC_TIMESTAMP_etype },
|
|
{ BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_kvno },
|
|
{ BER_CLASS_CON, 2, 0,
|
|
dissect_krb5_encrypted_PA_ENC_TIMESTAMP },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_PA_ENC_TIMESTAMP(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, PA_ENC_TIMESTAMP_sequence, -1, -1);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
dissect_krb5_etype_info_salt(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_octet_string(FALSE, actx, tree, tvb, offset, hf_krb_etype_info_salt, NULL);
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_etype_info2_salt(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralString(actx, tree, tvb, offset, hf_krb_etype_info2_salt, NULL, 0);
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_etype_info2_s2kparams(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_octet_string(FALSE, actx, tree, tvb, offset, hf_krb_etype_info2_s2kparams, NULL);
|
|
return offset;
|
|
}
|
|
|
|
static ber_old_sequence_t PA_ENCTYPE_INFO_ENTRY_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_etype },
|
|
{ BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_etype_info_salt },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_PA_ENCTYPE_INFO_ENTRY(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, PA_ENCTYPE_INFO_ENTRY_sequence, -1, -1);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static ber_old_sequence_t PA_ENCTYPE_INFO_sequence_of[1] = {
|
|
{ BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_krb5_PA_ENCTYPE_INFO_ENTRY },
|
|
};
|
|
static int
|
|
dissect_krb5_PA_ENCTYPE_INFO(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence_of(FALSE, actx, tree, tvb, offset, PA_ENCTYPE_INFO_sequence_of, -1, -1);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static ber_old_sequence_t PA_ENCTYPE_INFO2_ENTRY_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_etype },
|
|
{ BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_etype_info2_salt },
|
|
{ BER_CLASS_CON, 2, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_etype_info2_s2kparams },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_PA_ENCTYPE_INFO2_ENTRY(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, PA_ENCTYPE_INFO2_ENTRY_sequence, -1, -1);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static ber_old_sequence_t PA_ENCTYPE_INFO2_sequence_of[1] = {
|
|
{ BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_krb5_PA_ENCTYPE_INFO2_ENTRY },
|
|
};
|
|
static int
|
|
dissect_krb5_PA_ENCTYPE_INFO2(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence_of(FALSE, actx, tree, tvb, offset, PA_ENCTYPE_INFO2_sequence_of, -1, -1);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
dissect_krb5_PW_SALT(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
guint32 nt_status;
|
|
|
|
/* Microsoft stores a special 12 byte blob here
|
|
* guint32 NT_status
|
|
* guint32 unknown
|
|
* guint32 unknown
|
|
* decode everything as this blob for now until we see if anyone
|
|
* else ever uses it or we learn how to tell wether this
|
|
* is such an MS blob or not.
|
|
*/
|
|
proto_tree_add_item(tree, hf_krb_smb_nt_status, tvb, offset, 4,
|
|
TRUE);
|
|
nt_status=tvb_get_letohl(tvb, offset);
|
|
if(nt_status && check_col(actx->pinfo->cinfo, COL_INFO)) {
|
|
col_append_fstr(actx->pinfo->cinfo, COL_INFO,
|
|
" NT Status: %s",
|
|
val_to_str(nt_status, NT_errors,
|
|
"Unknown error code %#x"));
|
|
}
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(tree, hf_krb_smb_unknown, tvb, offset, 4,
|
|
TRUE);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(tree, hf_krb_smb_unknown, tvb, offset, 4,
|
|
TRUE);
|
|
offset += 4;
|
|
|
|
return offset;
|
|
}
|
|
|
|
/*
|
|
* PA-DATA ::= SEQUENCE {
|
|
* padata-type[1] INTEGER,
|
|
* padata-value[2] OCTET STRING,
|
|
* -- might be encoded AP-REQ
|
|
* }
|
|
*/
|
|
guint32 krb_PA_DATA_type;
|
|
static int
|
|
dissect_krb5_PA_DATA_type(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_PA_DATA_type, &krb_PA_DATA_type);
|
|
krb_PA_DATA_type&=0xff; /*this is really just one single byte */
|
|
|
|
if(tree){
|
|
proto_item_append_text(tree, " %s",
|
|
val_to_str(krb_PA_DATA_type, krb5_preauthentication_types,
|
|
"Unknown:%d"));
|
|
}
|
|
return offset;
|
|
}
|
|
static int
|
|
dissect_krb5_PA_DATA_value(proto_tree *parent_tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
proto_tree *tree=parent_tree;
|
|
|
|
if(actx->created_item){
|
|
tree=proto_item_add_subtree(actx->created_item, ett_krb_PA_DATA_tree);
|
|
}
|
|
|
|
|
|
switch(krb_PA_DATA_type){
|
|
case KRB5_PA_TGS_REQ:
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset,hf_krb_PA_DATA_value, dissect_krb5_application_choice);
|
|
break;
|
|
case KRB5_PA_PK_AS_REQ:
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset,hf_krb_PA_DATA_value, dissect_pkinit_PA_PK_AS_REQ);
|
|
break;
|
|
case KRB5_PA_PK_AS_REP:
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset,hf_krb_PA_DATA_value, dissect_pkinit_PA_PK_AS_REP);
|
|
break;
|
|
case KRB5_PA_PAC_REQUEST:
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset,hf_krb_PA_DATA_value, dissect_krb5_PA_PAC_REQUEST);
|
|
break;
|
|
case KRB5_PA_S4U2SELF:
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset,hf_krb_PA_DATA_value, dissect_krb5_PA_S4U2SELF);
|
|
break;
|
|
case KRB5_PA_PROV_SRV_LOCATION:
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset,hf_krb_PA_DATA_value, dissect_krb5_PA_PROV_SRV_LOCATION);
|
|
break;
|
|
case KRB5_PA_ENC_TIMESTAMP:
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset,hf_krb_PA_DATA_value, dissect_krb5_PA_ENC_TIMESTAMP);
|
|
break;
|
|
case KRB5_PA_ENCTYPE_INFO:
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset,hf_krb_PA_DATA_value, dissect_krb5_PA_ENCTYPE_INFO);
|
|
break;
|
|
case KRB5_PA_ENCTYPE_INFO2:
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset,hf_krb_PA_DATA_value, dissect_krb5_PA_ENCTYPE_INFO2);
|
|
break;
|
|
case KRB5_PA_PW_SALT:
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset,hf_krb_PA_DATA_value, dissect_krb5_PW_SALT);
|
|
break;
|
|
default:
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset,hf_krb_PA_DATA_value, NULL);
|
|
}
|
|
return offset;
|
|
/*qqq*/
|
|
}
|
|
|
|
static ber_old_sequence_t PA_DATA_sequence[] = {
|
|
{ BER_CLASS_CON, 1, 0, dissect_krb5_PA_DATA_type },
|
|
{ BER_CLASS_CON, 2, 0, dissect_krb5_PA_DATA_value },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_PA_DATA(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, PA_DATA_sequence, -1, -1);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
* padata[3] SEQUENCE OF PA-DATA OPTIONAL,
|
|
*
|
|
*/
|
|
static ber_old_sequence_t PA_DATA_sequence_of[1] = {
|
|
{ BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_krb5_PA_DATA },
|
|
};
|
|
static int
|
|
dissect_krb5_padata(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence_of(FALSE, actx, tree, tvb, offset, PA_DATA_sequence_of, hf_krb_padata, ett_krb_padata);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
static const true_false_string krb5_ticketflags_forwardable = {
|
|
"FORWARDABLE tickets are allowed/requested",
|
|
"Do NOT use forwardable tickets"
|
|
};
|
|
static const true_false_string krb5_ticketflags_forwarded = {
|
|
"This ticket has been FORWARDED",
|
|
"This is NOT a forwarded ticket"
|
|
};
|
|
static const true_false_string krb5_ticketflags_proxyable = {
|
|
"PROXIABLE tickets are allowed/requested",
|
|
"Do NOT use proxiable tickets"
|
|
};
|
|
static const true_false_string krb5_ticketflags_proxy = {
|
|
"This is a PROXY ticket",
|
|
"This ticket has NOT been proxied"
|
|
};
|
|
static const true_false_string krb5_ticketflags_allow_postdate = {
|
|
"We allow the ticket to be POSTDATED",
|
|
"We do NOT allow the ticket to be postdated"
|
|
};
|
|
static const true_false_string krb5_ticketflags_postdated = {
|
|
"This ticket is POSTDATED",
|
|
"This ticket is NOT postdated"
|
|
};
|
|
static const true_false_string krb5_ticketflags_invalid = {
|
|
"This ticket is INVALID",
|
|
"This ticket is NOT invalid"
|
|
};
|
|
static const true_false_string krb5_ticketflags_renewable = {
|
|
"This ticket is RENEWABLE",
|
|
"This ticket is NOT renewable"
|
|
};
|
|
static const true_false_string krb5_ticketflags_initial = {
|
|
"This ticket was granted by AS and not TGT protocol",
|
|
"This ticket was granted by TGT and not as protocol"
|
|
};
|
|
static const true_false_string krb5_ticketflags_pre_auth = {
|
|
"The client was PRE-AUTHenticated",
|
|
"The client was NOT pre-authenticated"
|
|
};
|
|
static const true_false_string krb5_ticketflags_hw_auth = {
|
|
"The client was authenticated by HardWare",
|
|
"The client was NOT authenticated using hardware"
|
|
};
|
|
static const true_false_string krb5_ticketflags_transited_policy_checked = {
|
|
"Kdc has performed TRANSITED POLICY CHECKING",
|
|
"Kdc has NOT performed transited policy checking"
|
|
};
|
|
static const true_false_string krb5_ticketflags_ok_as_delegate = {
|
|
"This ticket is OK AS a DELEGATED ticket",
|
|
"This ticket is NOT ok as a delegated ticket"
|
|
};
|
|
|
|
static int* TicketFlags_bits[] = {
|
|
&hf_krb_TicketFlags_forwardable,
|
|
&hf_krb_TicketFlags_forwarded,
|
|
&hf_krb_TicketFlags_proxyable,
|
|
&hf_krb_TicketFlags_proxy,
|
|
&hf_krb_TicketFlags_allow_postdate,
|
|
&hf_krb_TicketFlags_postdated,
|
|
&hf_krb_TicketFlags_invalid,
|
|
&hf_krb_TicketFlags_renewable,
|
|
&hf_krb_TicketFlags_initial,
|
|
&hf_krb_TicketFlags_pre_auth,
|
|
&hf_krb_TicketFlags_hw_auth,
|
|
&hf_krb_TicketFlags_transited_policy_checked,
|
|
&hf_krb_TicketFlags_ok_as_delegate,
|
|
NULL
|
|
};
|
|
|
|
static int
|
|
dissect_krb5_TicketFlags(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_bitstring32(FALSE, actx, tree, tvb, offset, TicketFlags_bits, hf_krb_TicketFlags, ett_krb_Ticket_Flags, NULL);
|
|
return offset;
|
|
}
|
|
|
|
|
|
static guint32 keytype;
|
|
static int
|
|
dissect_krb5_keytype(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_keytype, &keytype);
|
|
if(tree){
|
|
proto_item_append_text(tree, " %s",
|
|
val_to_str(keytype, krb5_encryption_types,
|
|
"%#x"));
|
|
}
|
|
return offset;
|
|
}
|
|
static int keylength;
|
|
static const guint8 *keyvalue;
|
|
static int
|
|
store_keyvalue(proto_tree *tree _U_, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
keylength=tvb_length_remaining(tvb, offset);
|
|
keyvalue=tvb_get_ptr(tvb, offset, keylength);
|
|
return 0;
|
|
}
|
|
static int
|
|
dissect_krb5_keyvalue(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_keyvalue, store_keyvalue);
|
|
return offset;
|
|
}
|
|
|
|
|
|
/*
|
|
* EncryptionKey ::= SEQUENCE {
|
|
* keytype [0] int32
|
|
* keyvalue [1] octet string
|
|
*/
|
|
static ber_old_sequence_t EncryptionKey_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_keytype },
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_keyvalue },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_key(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, EncryptionKey_sequence, hf_krb_key, ett_krb_key);
|
|
|
|
#ifdef HAVE_KERBEROS
|
|
add_encryption_key(actx->pinfo, keytype, keylength, keyvalue, "key");
|
|
#endif
|
|
return offset;
|
|
}
|
|
static int
|
|
dissect_krb5_subkey(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, EncryptionKey_sequence, hf_krb_subkey, ett_krb_subkey);
|
|
#ifdef HAVE_KERBEROS
|
|
add_encryption_key(actx->pinfo, keytype, keylength, keyvalue, "subkey");
|
|
#endif
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_PAC_DREP(proto_tree *parent_tree, tvbuff_t *tvb, int offset, guint8 *drep)
|
|
{
|
|
proto_item *item=NULL;
|
|
proto_tree *tree=NULL;
|
|
guint8 val;
|
|
|
|
if(parent_tree){
|
|
item=proto_tree_add_text(parent_tree, tvb, offset, 16, "DREP");
|
|
tree=proto_item_add_subtree(item, ett_krb_PAC_DREP);
|
|
}
|
|
|
|
val = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_uint(tree, hf_dcerpc_drep_byteorder, tvb, offset, 1, val>>4);
|
|
|
|
offset++;
|
|
|
|
if (drep) {
|
|
*drep = val;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* This might be some sort of header that MIDL generates when creating
|
|
* marshalling/unmarshalling code for blobs that are not to be transported
|
|
* ontop of DCERPC and where the DREP fields specifying things such as
|
|
* endianess and similar are not available.
|
|
*/
|
|
static int
|
|
dissect_krb5_PAC_NDRHEADERBLOB(proto_tree *parent_tree, tvbuff_t *tvb, int offset, guint8 *drep, asn1_ctx_t *actx _U_)
|
|
{
|
|
proto_item *item=NULL;
|
|
proto_tree *tree=NULL;
|
|
|
|
if(parent_tree){
|
|
item=proto_tree_add_text(parent_tree, tvb, offset, 16, "MES header");
|
|
tree=proto_item_add_subtree(item, ett_krb_PAC_MIDL_BLOB);
|
|
}
|
|
|
|
/* modified DREP field that is used for stuff that is transporetd ontop
|
|
of non dcerpc
|
|
*/
|
|
proto_tree_add_item(tree, hf_krb_midl_version, tvb, offset, 1, TRUE);
|
|
offset++;
|
|
|
|
offset = dissect_krb5_PAC_DREP(tree, tvb, offset, drep);
|
|
|
|
|
|
proto_tree_add_item(tree, hf_krb_midl_hdr_len, tvb, offset, 2, TRUE);
|
|
offset+=2;
|
|
|
|
proto_tree_add_item(tree, hf_krb_midl_fill_bytes, tvb, offset, 4,
|
|
TRUE);
|
|
offset += 4;
|
|
|
|
/* length of blob that follows */
|
|
proto_tree_add_item(tree, hf_krb_midl_blob_len, tvb, offset, 8,
|
|
TRUE);
|
|
offset += 8;
|
|
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_PAC_LOGON_INFO(proto_tree *parent_tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
proto_item *item=NULL;
|
|
proto_tree *tree=NULL;
|
|
guint8 drep[4] = { 0x10, 0x00, 0x00, 0x00}; /* fake DREP struct */
|
|
dcerpc_info di; /* fake dcerpc_info struct */
|
|
void *old_private_data;
|
|
|
|
item=proto_tree_add_item(parent_tree, hf_krb_PAC_LOGON_INFO, tvb, offset, tvb_length_remaining(tvb, offset), FALSE);
|
|
if(parent_tree){
|
|
tree=proto_item_add_subtree(item, ett_krb_PAC_LOGON_INFO);
|
|
}
|
|
|
|
/* skip the first 16 bytes, they are some magic created by the idl
|
|
* compiler the first 4 bytes might be flags?
|
|
*/
|
|
offset=dissect_krb5_PAC_NDRHEADERBLOB(tree, tvb, offset, &drep[0], actx);
|
|
|
|
/* the PAC_LOGON_INFO blob */
|
|
/* fake whatever state the dcerpc runtime support needs */
|
|
di.conformant_run=0;
|
|
di.call_data=NULL;
|
|
old_private_data=actx->pinfo->private_data;
|
|
actx->pinfo->private_data=&di;
|
|
init_ndr_pointer_list(actx->pinfo);
|
|
offset = dissect_ndr_pointer(tvb, offset, actx->pinfo, tree, drep,
|
|
netlogon_dissect_PAC_LOGON_INFO, NDR_POINTER_UNIQUE,
|
|
"PAC_LOGON_INFO:", -1);
|
|
actx->pinfo->private_data=old_private_data;
|
|
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_PAC_CONSTRAINED_DELEGATION(proto_tree *parent_tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
proto_item *item=NULL;
|
|
proto_tree *tree=NULL;
|
|
guint8 drep[4] = { 0x10, 0x00, 0x00, 0x00}; /* fake DREP struct */
|
|
dcerpc_info di; /* fake dcerpc_info struct */
|
|
void *old_private_data;
|
|
|
|
item=proto_tree_add_item(parent_tree, hf_krb_PAC_CONSTRAINED_DELEGATION, tvb, offset, tvb_length_remaining(tvb, offset), FALSE);
|
|
if(parent_tree){
|
|
tree=proto_item_add_subtree(item, ett_krb_PAC_CONSTRAINED_DELEGATION);
|
|
}
|
|
|
|
/* skip the first 16 bytes, they are some magic created by the idl
|
|
* compiler the first 4 bytes might be flags?
|
|
*/
|
|
offset=dissect_krb5_PAC_NDRHEADERBLOB(tree, tvb, offset, &drep[0], actx);
|
|
|
|
|
|
/* the PAC_CONSTRAINED_DELEGATION blob */
|
|
/* fake whatever state the dcerpc runtime support needs */
|
|
di.conformant_run=0;
|
|
di.call_data=NULL;
|
|
old_private_data=actx->pinfo->private_data;
|
|
actx->pinfo->private_data=&di;
|
|
init_ndr_pointer_list(actx->pinfo);
|
|
offset = dissect_ndr_pointer(tvb, offset, actx->pinfo, tree, drep,
|
|
netlogon_dissect_PAC_CONSTRAINED_DELEGATION, NDR_POINTER_UNIQUE,
|
|
"PAC_CONSTRAINED_DELEGATION:", -1);
|
|
actx->pinfo->private_data=old_private_data;
|
|
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_PAC_CREDENTIAL_TYPE(proto_tree *parent_tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
proto_item *item=NULL;
|
|
proto_tree *tree=NULL;
|
|
|
|
item=proto_tree_add_item(parent_tree, hf_krb_PAC_CREDENTIAL_TYPE, tvb, offset, tvb_length_remaining(tvb, offset), FALSE);
|
|
if(parent_tree){
|
|
tree=proto_item_add_subtree(item, ett_krb_PAC_CREDENTIAL_TYPE);
|
|
}
|
|
|
|
/*qqq*/
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_PAC_SERVER_CHECKSUM(proto_tree *parent_tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
proto_item *item=NULL;
|
|
proto_tree *tree=NULL;
|
|
|
|
item=proto_tree_add_item(parent_tree, hf_krb_PAC_SERVER_CHECKSUM, tvb, offset, tvb_length_remaining(tvb, offset), FALSE);
|
|
if(parent_tree){
|
|
tree=proto_item_add_subtree(item, ett_krb_PAC_SERVER_CHECKSUM);
|
|
}
|
|
|
|
/* signature type */
|
|
proto_tree_add_item(tree, hf_krb_pac_signature_type, tvb, offset, 4, TRUE);
|
|
offset+=4;
|
|
|
|
/* signature data */
|
|
proto_tree_add_item(tree, hf_krb_pac_signature_signature, tvb, offset, tvb_length_remaining(tvb, offset), FALSE);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_PAC_PRIVSVR_CHECKSUM(proto_tree *parent_tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
proto_item *item=NULL;
|
|
proto_tree *tree=NULL;
|
|
|
|
item=proto_tree_add_item(parent_tree, hf_krb_PAC_PRIVSVR_CHECKSUM, tvb, offset, tvb_length_remaining(tvb, offset), FALSE);
|
|
if(parent_tree){
|
|
tree=proto_item_add_subtree(item, ett_krb_PAC_PRIVSVR_CHECKSUM);
|
|
}
|
|
|
|
/* signature type */
|
|
proto_tree_add_item(tree, hf_krb_pac_signature_type, tvb, offset, 4, TRUE);
|
|
offset+=4;
|
|
|
|
/* signature data */
|
|
proto_tree_add_item(tree, hf_krb_pac_signature_signature, tvb, offset, tvb_length_remaining(tvb, offset), FALSE);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_PAC_CLIENT_INFO_TYPE(proto_tree *parent_tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
proto_item *item=NULL;
|
|
proto_tree *tree=NULL;
|
|
guint16 namelen;
|
|
char *name;
|
|
|
|
item=proto_tree_add_item(parent_tree, hf_krb_PAC_CLIENT_INFO_TYPE, tvb, offset, tvb_length_remaining(tvb, offset), FALSE);
|
|
if(parent_tree){
|
|
tree=proto_item_add_subtree(item, ett_krb_PAC_CLIENT_INFO_TYPE);
|
|
}
|
|
|
|
/* clientid */
|
|
offset = dissect_nt_64bit_time(tvb, tree, offset,
|
|
hf_krb_pac_clientid);
|
|
|
|
/* name length */
|
|
namelen=tvb_get_letohs(tvb, offset);
|
|
proto_tree_add_uint(tree, hf_krb_pac_namelen, tvb, offset, 2, namelen);
|
|
offset+=2;
|
|
|
|
/* client name */
|
|
name=tvb_get_ephemeral_faked_unicode(tvb, offset, namelen/2, TRUE);
|
|
proto_tree_add_string(tree, hf_krb_pac_clientname, tvb, offset, namelen, name);
|
|
offset+=namelen;
|
|
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_AD_WIN2K_PAC_struct(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
guint32 pac_type;
|
|
guint32 pac_size;
|
|
guint32 pac_offset;
|
|
proto_item *it=NULL;
|
|
proto_tree *tr=NULL;
|
|
tvbuff_t *next_tvb;
|
|
|
|
/* type of pac data */
|
|
pac_type=tvb_get_letohl(tvb, offset);
|
|
it=proto_tree_add_uint(tree, hf_krb_w2k_pac_type, tvb, offset, 4, pac_type);
|
|
if(it){
|
|
tr=proto_item_add_subtree(it, ett_krb_PAC);
|
|
}
|
|
|
|
offset += 4;
|
|
|
|
/* size of pac data */
|
|
pac_size=tvb_get_letohl(tvb, offset);
|
|
proto_tree_add_uint(tr, hf_krb_w2k_pac_size, tvb, offset, 4, pac_size);
|
|
offset += 4;
|
|
|
|
/* offset to pac data */
|
|
pac_offset=tvb_get_letohl(tvb, offset);
|
|
proto_tree_add_uint(tr, hf_krb_w2k_pac_offset, tvb, offset, 4, pac_offset);
|
|
offset += 8;
|
|
|
|
|
|
next_tvb=tvb_new_subset(tvb, pac_offset, pac_size, pac_size);
|
|
switch(pac_type){
|
|
case PAC_LOGON_INFO:
|
|
dissect_krb5_PAC_LOGON_INFO(tr, next_tvb, 0, actx);
|
|
break;
|
|
case PAC_CREDENTIAL_TYPE:
|
|
dissect_krb5_PAC_CREDENTIAL_TYPE(tr, next_tvb, 0, actx);
|
|
break;
|
|
case PAC_SERVER_CHECKSUM:
|
|
dissect_krb5_PAC_SERVER_CHECKSUM(tr, next_tvb, 0, actx);
|
|
break;
|
|
case PAC_PRIVSVR_CHECKSUM:
|
|
dissect_krb5_PAC_PRIVSVR_CHECKSUM(tr, next_tvb, 0, actx);
|
|
break;
|
|
case PAC_CLIENT_INFO_TYPE:
|
|
dissect_krb5_PAC_CLIENT_INFO_TYPE(tr, next_tvb, 0, actx);
|
|
break;
|
|
case PAC_CONSTRAINED_DELEGATION:
|
|
dissect_krb5_PAC_CONSTRAINED_DELEGATION(tr, next_tvb, 0, actx);
|
|
break;
|
|
default:;
|
|
/*qqq*/
|
|
}
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_AD_WIN2K_PAC(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
guint32 entries;
|
|
guint32 version;
|
|
guint32 i;
|
|
|
|
/* first in the PAC structure comes the number of entries */
|
|
entries=tvb_get_letohl(tvb, offset);
|
|
proto_tree_add_uint(tree, hf_krb_w2k_pac_entries, tvb, offset, 4, entries);
|
|
offset += 4;
|
|
|
|
/* second comes the version */
|
|
version=tvb_get_letohl(tvb, offset);
|
|
proto_tree_add_uint(tree, hf_krb_w2k_pac_version, tvb, offset, 4, version);
|
|
offset += 4;
|
|
|
|
for(i=0;i<entries;i++){
|
|
offset=dissect_krb5_AD_WIN2K_PAC_struct(tree, tvb, offset, actx);
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
int dissect_krb5_Checksum(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx);
|
|
|
|
static ber_old_sequence_t AD_SIGNTICKET_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_etype },
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_Checksum },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
|
|
/* first seen in traces from vista */
|
|
static int
|
|
dissect_krb5_AD_SIGNTICKET(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, AD_SIGNTICKET_sequence, -1, -1);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static guint32 IF_RELEVANT_type;
|
|
static int
|
|
dissect_krb5_IF_RELEVANT_type(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_IF_RELEVANT_type, &IF_RELEVANT_type);
|
|
if(tree){
|
|
proto_item_append_text(tree, " %s",
|
|
val_to_str(IF_RELEVANT_type, krb5_ad_types,
|
|
"%#x"));
|
|
}
|
|
return offset;
|
|
}
|
|
static int
|
|
dissect_krb5_IF_RELEVANT_value(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
switch(IF_RELEVANT_type){
|
|
case KRB5_AD_WIN2K_PAC:
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_advalue, dissect_krb5_AD_WIN2K_PAC);
|
|
break;
|
|
case KRB5_AD_SIGNTICKET:
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_advalue, dissect_krb5_AD_SIGNTICKET);
|
|
break;
|
|
default:
|
|
offset=dissect_ber_octet_string(FALSE, actx, tree, tvb, offset, hf_krb_IF_RELEVANT_value, NULL);
|
|
}
|
|
return offset;
|
|
}
|
|
static ber_old_sequence_t IF_RELEVANT_item_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_IF_RELEVANT_type },
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_IF_RELEVANT_value },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_IF_RELEVANT_item(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, IF_RELEVANT_item_sequence, hf_krb_IF_RELEVANT, ett_krb_IF_RELEVANT);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static ber_old_sequence_t IF_RELEVANT_sequence_of[1] = {
|
|
{ BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_krb5_IF_RELEVANT_item },
|
|
};
|
|
|
|
static int
|
|
dissect_krb5_IF_RELEVANT(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence_of(FALSE, actx, tree, tvb, offset, IF_RELEVANT_sequence_of, -1, -1);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static guint32 adtype;
|
|
static int
|
|
dissect_krb5_adtype(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_adtype, &adtype);
|
|
if(tree){
|
|
proto_item_append_text(tree, " %s",
|
|
val_to_str(adtype, krb5_ad_types,
|
|
"%#x"));
|
|
}
|
|
return offset;
|
|
}
|
|
static int
|
|
dissect_krb5_advalue(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
switch(adtype){
|
|
case KRB5_AD_IF_RELEVANT:
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_advalue, dissect_krb5_IF_RELEVANT);
|
|
break;
|
|
default:
|
|
offset=dissect_ber_octet_string(FALSE, actx, tree, tvb, offset, hf_krb_advalue, NULL);
|
|
}
|
|
return offset;
|
|
}
|
|
/*
|
|
* AuthorizationData ::= SEQUENCE {
|
|
* ad-type [0] int32
|
|
* ad-data [1] octet string
|
|
*/
|
|
static ber_old_sequence_t AuthorizationData_item_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_adtype },
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_advalue },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_AuthorizationData_item(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, AuthorizationData_item_sequence, hf_krb_AuthorizationData, ett_krb_AuthorizationData);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static ber_old_sequence_t AuthorizationData_sequence_of[1] = {
|
|
{ BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_krb5_AuthorizationData_item },
|
|
};
|
|
static int
|
|
dissect_krb5_AuthorizationData(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence_of(FALSE, actx, tree, tvb, offset, AuthorizationData_sequence_of, -1, -1);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
dissect_krb5_transited_type(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
guint32 trtype;
|
|
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_transitedtype, &trtype);
|
|
if(tree){
|
|
proto_item_append_text(tree, " %s",
|
|
val_to_str(trtype, krb5_transited_types,
|
|
"%#x"));
|
|
}
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_transited_contents(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_octet_string(FALSE, actx, tree, tvb, offset, hf_krb_transitedcontents, NULL);
|
|
return offset;
|
|
}
|
|
|
|
/*
|
|
* TransitedEncoding ::= SEQUENCE {
|
|
* tr-type [0] int32
|
|
* contents [1] octet string
|
|
*/
|
|
static ber_old_sequence_t TransitedEncoding_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_transited_type },
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_transited_contents },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_transited(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, TransitedEncoding_sequence, hf_krb_TransitedEncoding, ett_krb_TransitedEncoding);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
dissect_krb5_authtime(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralizedTime(FALSE, actx, tree, tvb, offset, hf_krb_authtime);
|
|
return offset;
|
|
}
|
|
static int
|
|
dissect_krb5_starttime(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralizedTime(FALSE, actx, tree, tvb, offset, hf_krb_starttime);
|
|
return offset;
|
|
}
|
|
static int
|
|
dissect_krb5_endtime(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralizedTime(FALSE, actx, tree, tvb, offset, hf_krb_endtime);
|
|
return offset;
|
|
}
|
|
static int
|
|
dissect_krb5_renew_till(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralizedTime(FALSE, actx, tree, tvb, offset, hf_krb_renew_till);
|
|
return offset;
|
|
}
|
|
|
|
/*
|
|
* EncTicketPart ::= SEQUENCE {
|
|
* flags [0] TicketFlags,
|
|
* key [1] EncryptionKey,
|
|
* crealm [2] Realm,
|
|
* cname [3] PrincipalName,
|
|
* transited [4] TransitedEncoding,
|
|
* authtime [5] KerberosTime,
|
|
* starttime [6] KerberosTime OPTIONAL,
|
|
* endtime [7] KerberosTime,
|
|
* renew-till [8] KerberosTime OPTIONAL,
|
|
* caddr [9] HostAddresses OPTIONAL,
|
|
* authorization-data [10] AuthorizationData OPTIONAL
|
|
* }
|
|
*/
|
|
static ber_old_sequence_t EncTicketPart_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_TicketFlags },
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_key },
|
|
{ BER_CLASS_CON, 2, 0,
|
|
dissect_krb5_crealm },
|
|
{ BER_CLASS_CON, 3, 0,
|
|
dissect_krb5_cname },
|
|
{ BER_CLASS_CON, 4, 0,
|
|
dissect_krb5_transited },
|
|
{ BER_CLASS_CON, 5, 0,
|
|
dissect_krb5_authtime },
|
|
{ BER_CLASS_CON, 6, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_starttime },
|
|
{ BER_CLASS_CON, 7, 0,
|
|
dissect_krb5_endtime },
|
|
{ BER_CLASS_CON, 8, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_renew_till },
|
|
{ BER_CLASS_CON, 9, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_HostAddresses },
|
|
{ BER_CLASS_CON, 10, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_AuthorizationData },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_EncTicketPart(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, EncTicketPart_sequence, hf_krb_EncTicketPart, ett_krb_EncTicketPart);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
* EncAPRepPart ::= SEQUENCE {
|
|
* ctime [0] KerberosTime
|
|
* cusec [1] Microseconds
|
|
* subkey [2] encryptionKey OPTIONAL
|
|
* seq-number [3] uint32 OPTIONAL
|
|
* }
|
|
*/
|
|
static ber_old_sequence_t EncAPRepPart_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_ctime },
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_cusec },
|
|
{ BER_CLASS_CON, 2, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_subkey },
|
|
{ BER_CLASS_CON, 3, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_seq_number },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_EncAPRepPart(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, EncAPRepPart_sequence, hf_krb_EncAPRepPart, ett_krb_EncAPRepPart);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
static guint32 lr_type;
|
|
static const value_string krb5_lr_types[] = {
|
|
{ 0 , "No information available" },
|
|
{ 1 , "Time of last initial TGT request" },
|
|
{ 2 , "Time of last initial request" },
|
|
{ 3 , "Time of issue of latest TGT ticket" },
|
|
{ 4 , "Time of last renewal" },
|
|
{ 5 , "Time of last request" },
|
|
{ 6 , "Time when password will expire" },
|
|
{ 7 , "Time when account will expire" },
|
|
{ 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_lr_type(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_lr_type, &lr_type);
|
|
|
|
return offset;
|
|
}
|
|
static int
|
|
dissect_krb5_lr_value(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralizedTime(FALSE, actx, tree, tvb, offset, hf_krb_lr_time);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static ber_old_sequence_t LastReq_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_lr_type },
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_lr_value },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_LastReq(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, LastReq_sequence, hf_krb_LastReq, ett_krb_LastReq);
|
|
|
|
return offset;
|
|
}
|
|
static ber_old_sequence_t LastReq_sequence_of[1] = {
|
|
{ BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_krb5_LastReq },
|
|
};
|
|
static int
|
|
dissect_krb5_LastReq_sequence_of(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence_of(FALSE, actx, tree, tvb, offset, LastReq_sequence_of, hf_krb_LastReqs, ett_krb_LastReqs);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_key_expiration(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralizedTime(FALSE, actx, tree, tvb, offset, hf_krb_key_expire);
|
|
return offset;
|
|
}
|
|
|
|
static ber_old_sequence_t EncKDCRepPart_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_key },
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_LastReq_sequence_of },
|
|
{ BER_CLASS_CON, 2, 0,
|
|
dissect_krb5_nonce },
|
|
{ BER_CLASS_CON, 3, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_key_expiration },
|
|
{ BER_CLASS_CON, 4, 0,
|
|
dissect_krb5_TicketFlags },
|
|
{ BER_CLASS_CON, 5, 0,
|
|
dissect_krb5_authtime },
|
|
{ BER_CLASS_CON, 6, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_starttime },
|
|
{ BER_CLASS_CON, 7, 0,
|
|
dissect_krb5_endtime },
|
|
{ BER_CLASS_CON, 8, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_renew_till },
|
|
{ BER_CLASS_CON, 9, 0,
|
|
dissect_krb5_realm },
|
|
{ BER_CLASS_CON, 10, 0,
|
|
dissect_krb5_sname },
|
|
{ BER_CLASS_CON, 11, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_HostAddresses },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_EncKDCRepPart(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, EncKDCRepPart_sequence, hf_krb_EncKDCRepPart, ett_krb_EncKDCRepPart);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
dissect_krb5_authenticator_vno(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_authenticator_vno, NULL);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
#define KRB5_GSS_C_DELEG_FLAG 0x01
|
|
#define KRB5_GSS_C_MUTUAL_FLAG 0x02
|
|
#define KRB5_GSS_C_REPLAY_FLAG 0x04
|
|
#define KRB5_GSS_C_SEQUENCE_FLAG 0x08
|
|
#define KRB5_GSS_C_CONF_FLAG 0x10
|
|
#define KRB5_GSS_C_INTEG_FLAG 0x20
|
|
#define KRB5_GSS_C_DCE_STYLE 0x1000
|
|
static const true_false_string tfs_gss_flags_deleg = {
|
|
"Delegate credantials to remote peer",
|
|
"Do NOT delegate"
|
|
};
|
|
static const true_false_string tfs_gss_flags_mutual = {
|
|
"Request that remote peer authenticates itself",
|
|
"Mutual authentication NOT required"
|
|
};
|
|
static const true_false_string tfs_gss_flags_replay = {
|
|
"Enable replay protection for signed or sealed messages",
|
|
"Do NOT enable replay protection"
|
|
};
|
|
static const true_false_string tfs_gss_flags_sequence = {
|
|
"Enable Out-of-sequence detection for sign or sealed messages",
|
|
"Do NOT enable out-of-sequence detection"
|
|
};
|
|
static const true_false_string tfs_gss_flags_conf = {
|
|
"Confidentiality (sealing) may be invoked",
|
|
"Do NOT use Confidentiality (sealing)"
|
|
};
|
|
static const true_false_string tfs_gss_flags_integ = {
|
|
"Integrity protection (signing) may be invoked",
|
|
"Do NOT use integrity protection"
|
|
};
|
|
|
|
static const true_false_string tfs_gss_flags_dce_style = {
|
|
"DCE-STYLE",
|
|
"Not using DCE-STYLE"
|
|
};
|
|
|
|
/* Dissect a GSSAPI checksum as per RFC1964. This is NOT ASN.1 encoded.
|
|
*/
|
|
static int
|
|
dissect_krb5_rfc1964_checksum(asn1_ctx_t *actx _U_, proto_tree *tree, tvbuff_t *tvb)
|
|
{
|
|
int offset=0;
|
|
guint32 len;
|
|
guint16 dlglen;
|
|
|
|
/* Length of Bnd field */
|
|
len=tvb_get_letohl(tvb, offset);
|
|
proto_tree_add_item(tree, hf_krb_gssapi_len, tvb, offset, 4, TRUE);
|
|
offset += 4;
|
|
|
|
/* Bnd field */
|
|
proto_tree_add_item(tree, hf_krb_gssapi_bnd, tvb, offset, len, TRUE);
|
|
offset += len;
|
|
|
|
|
|
/* flags */
|
|
proto_tree_add_item(tree, hf_krb_gssapi_c_flag_dce_style, tvb, offset, 4, TRUE);
|
|
proto_tree_add_item(tree, hf_krb_gssapi_c_flag_integ, tvb, offset, 4, TRUE);
|
|
proto_tree_add_item(tree, hf_krb_gssapi_c_flag_conf, tvb, offset, 4, TRUE);
|
|
proto_tree_add_item(tree, hf_krb_gssapi_c_flag_sequence, tvb, offset, 4, TRUE);
|
|
proto_tree_add_item(tree, hf_krb_gssapi_c_flag_replay, tvb, offset, 4, TRUE);
|
|
proto_tree_add_item(tree, hf_krb_gssapi_c_flag_mutual, tvb, offset, 4, TRUE);
|
|
proto_tree_add_item(tree, hf_krb_gssapi_c_flag_deleg, tvb, offset, 4, TRUE);
|
|
offset += 4;
|
|
|
|
/* the next fields are optional so we have to check that we have
|
|
* more data in our buffers */
|
|
if(tvb_length_remaining(tvb, offset)<2){
|
|
return offset;
|
|
}
|
|
/* dlgopt identifier */
|
|
proto_tree_add_item(tree, hf_krb_gssapi_dlgopt, tvb, offset, 2, TRUE);
|
|
offset += 2;
|
|
|
|
if(tvb_length_remaining(tvb, offset)<2){
|
|
return offset;
|
|
}
|
|
/* dlglen identifier */
|
|
dlglen=tvb_get_letohs(tvb, offset);
|
|
proto_tree_add_item(tree, hf_krb_gssapi_dlglen, tvb, offset, 2, TRUE);
|
|
offset += 2;
|
|
|
|
if(dlglen!=tvb_length_remaining(tvb, offset)){
|
|
proto_tree_add_text(tree, tvb, 0, 0, "Error: DlgLen:%d is not the same as number of bytes remaining:%d", dlglen, tvb_length_remaining(tvb, offset));
|
|
return offset;
|
|
}
|
|
|
|
/* this should now be a KRB_CRED message */
|
|
offset=dissect_ber_old_choice(actx, tree, tvb, offset, kerberos_applications_choice, -1, -1, NULL);
|
|
|
|
|
|
return offset;
|
|
}
|
|
|
|
static guint32 checksum_type;
|
|
|
|
static int
|
|
dissect_krb5_checksum_type(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_checksum_type, &checksum_type);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_checksum_checksum(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
tvbuff_t *next_tvb;
|
|
|
|
switch(checksum_type){
|
|
case KRB5_CHKSUM_GSSAPI:
|
|
offset=dissect_ber_octet_string(FALSE, actx, tree, tvb, offset, hf_krb_checksum_checksum, &next_tvb);
|
|
dissect_krb5_rfc1964_checksum(actx, tree, next_tvb);
|
|
break;
|
|
default:
|
|
offset=dissect_ber_octet_string(FALSE, actx, tree, tvb, offset, hf_krb_checksum_checksum, NULL);
|
|
}
|
|
return offset;
|
|
}
|
|
|
|
/*
|
|
* Checksum ::= SEQUENCE {
|
|
* }
|
|
*/
|
|
static ber_old_sequence_t Checksum_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_checksum_type },
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_checksum_checksum },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
int
|
|
dissect_krb5_Checksum(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, Checksum_sequence, hf_krb_Checksum, ett_krb_Checksum);
|
|
|
|
return offset;
|
|
}
|
|
|
|
/*
|
|
* Authenticator ::= SEQUENCE {
|
|
* authenticator-vno [0] integer
|
|
* crealm [1] Realm
|
|
* cname [2] PrincipalName
|
|
* cksum [3] Checksum OPTIONAL
|
|
* cusec [4] Microseconds
|
|
* ctime [5] KerberosTime
|
|
* subkey [6] encryptionKey OPTIONAL
|
|
* seq-number [7] uint32 OPTIONAL
|
|
* authorization-data [8] AuthorizationData OPTIONAL
|
|
* }
|
|
*/
|
|
static ber_old_sequence_t Authenticator_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_authenticator_vno },
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_crealm },
|
|
{ BER_CLASS_CON, 2, 0,
|
|
dissect_krb5_cname },
|
|
{ BER_CLASS_CON, 3, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_Checksum },
|
|
{ BER_CLASS_CON, 4, 0,
|
|
dissect_krb5_cusec },
|
|
{ BER_CLASS_CON, 5, 0,
|
|
dissect_krb5_ctime },
|
|
{ BER_CLASS_CON, 6, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_subkey },
|
|
{ BER_CLASS_CON, 7, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_seq_number },
|
|
{ BER_CLASS_CON, 8, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_AuthorizationData },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_Authenticator(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, Authenticator_sequence, hf_krb_Authenticator, ett_krb_Authenticator);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
dissect_krb5_PRIV_BODY_user_data(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
tvbuff_t *new_tvb;
|
|
offset=dissect_ber_octet_string(FALSE, actx, tree, tvb, offset, hf_krb_PRIV_BODY_user_data, &new_tvb);
|
|
|
|
if (new_tvb)
|
|
call_kerberos_callbacks(actx->pinfo, tree, new_tvb, KRB_CBTAG_PRIV_USER_DATA);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static ber_old_sequence_t EncKrbPrivPart_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_PRIV_BODY_user_data },
|
|
{ BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_patimestamp },
|
|
{ BER_CLASS_CON, 2, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_cusec },
|
|
{ BER_CLASS_CON, 3, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_seq_number },
|
|
{ BER_CLASS_CON, 4, 0,
|
|
dissect_krb5_s_address },
|
|
{ BER_CLASS_CON, 5, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_HostAddresses },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_EncKrbPrivPart(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, EncKrbPrivPart_sequence, hf_krb_EncKrbPrivPart, ett_krb_EncKrbPrivPart);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static guint32 PRIV_etype;
|
|
static int
|
|
dissect_krb5_PRIV_etype(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_etype, &PRIV_etype);
|
|
if(tree){
|
|
proto_item_append_text(tree, " %s",
|
|
val_to_str(PRIV_etype, krb5_encryption_types,
|
|
"%#x"));
|
|
}
|
|
return offset;
|
|
}
|
|
|
|
#ifdef HAVE_KERBEROS
|
|
static int
|
|
dissect_krb5_decrypt_PRIV (proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
guint8 *plaintext=NULL;
|
|
int length;
|
|
|
|
length=tvb_length_remaining(tvb, offset);
|
|
|
|
if(!plaintext){
|
|
plaintext=decrypt_krb5_data(tree, actx->pinfo, 13, length, tvb_get_ptr(tvb, offset, length), PRIV_etype);
|
|
}
|
|
|
|
if(plaintext){
|
|
tvbuff_t *next_tvb;
|
|
next_tvb = tvb_new_real_data (plaintext,
|
|
length,
|
|
length);
|
|
tvb_set_free_cb(next_tvb, g_free);
|
|
tvb_set_child_real_data_tvbuff(tvb, next_tvb);
|
|
|
|
/* Add the decrypted data to the data source list. */
|
|
add_new_data_source(actx->pinfo, next_tvb, "Decrypted Krb5");
|
|
|
|
offset=dissect_ber_old_choice(actx, tree, next_tvb, 0, kerberos_applications_choice, -1, -1, NULL);
|
|
|
|
}
|
|
return offset;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* PRIV-BODY ::= SEQUENCE {
|
|
* KRB-PRIV ::= [APPLICATION 21] SEQUENCE {
|
|
* pvno[0] INTEGER,
|
|
* msg-type[1] INTEGER,
|
|
* enc-part[3] EncryptedData
|
|
* }
|
|
*/
|
|
static int
|
|
dissect_krb5_encrypted_PRIV(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
#ifdef HAVE_KERBEROS
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_encrypted_PRIV, dissect_krb5_decrypt_PRIV);
|
|
#else
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_encrypted_PRIV, NULL);
|
|
#endif
|
|
return offset;
|
|
}
|
|
static ber_old_sequence_t ENC_PRIV_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_PRIV_etype },
|
|
{ BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_kvno },
|
|
{ BER_CLASS_CON, 2, 0,
|
|
dissect_krb5_encrypted_PRIV },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_ENC_PRIV(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, ENC_PRIV_sequence, hf_krb_ENC_PRIV, ett_krb_PRIV_enc);
|
|
return offset;
|
|
}
|
|
static ber_old_sequence_t PRIV_BODY_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_pvno },
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_msg_type },
|
|
{ BER_CLASS_CON, 3, 0,
|
|
dissect_krb5_ENC_PRIV },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_PRIV(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, PRIV_BODY_sequence, hf_krb_PRIV_BODY, ett_krb_PRIV);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static guint32 EncKrbCredPart_etype;
|
|
static int
|
|
dissect_krb5_EncKrbCredPart_etype(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_etype, &EncKrbCredPart_etype);
|
|
if(tree){
|
|
proto_item_append_text(tree, " %s",
|
|
val_to_str(EncKrbCredPart_etype, krb5_encryption_types,
|
|
"%#x"));
|
|
}
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static ber_old_sequence_t KrbCredInfo_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0, dissect_krb5_key },
|
|
{ BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL, dissect_krb5_prealm },
|
|
{ BER_CLASS_CON, 2, BER_FLAGS_OPTIONAL, dissect_krb5_pname },
|
|
{ BER_CLASS_CON, 3, BER_FLAGS_OPTIONAL, dissect_krb5_TicketFlags },
|
|
{ BER_CLASS_CON, 4, BER_FLAGS_OPTIONAL, dissect_krb5_authtime },
|
|
{ BER_CLASS_CON, 5, BER_FLAGS_OPTIONAL, dissect_krb5_starttime },
|
|
{ BER_CLASS_CON, 6, BER_FLAGS_OPTIONAL, dissect_krb5_endtime },
|
|
{ BER_CLASS_CON, 7, BER_FLAGS_OPTIONAL, dissect_krb5_renew_till },
|
|
{ BER_CLASS_CON, 8, BER_FLAGS_OPTIONAL, dissect_krb5_srealm },
|
|
{ BER_CLASS_CON, 9, BER_FLAGS_OPTIONAL, dissect_krb5_sname },
|
|
{ BER_CLASS_CON, 10, BER_FLAGS_OPTIONAL, dissect_krb5_HostAddresses },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_KrbCredInfo(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, KrbCredInfo_sequence, hf_krb_KrbCredInfo, ett_krb_KrbCredInfo);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static ber_old_sequence_t KrbCredInfo_sequence_of[1] = {
|
|
{ BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_krb5_KrbCredInfo },
|
|
};
|
|
static int
|
|
dissect_krb5_KrbCredInfo_sequence_of(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence_of(FALSE, actx, tree, tvb, offset, KrbCredInfo_sequence_of, hf_krb_KrbCredInfos, ett_krb_KrbCredInfos);
|
|
|
|
return offset;
|
|
}
|
|
static const ber_old_sequence_t EncKrbCredPart_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0, dissect_krb5_KrbCredInfo_sequence_of },
|
|
{ BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL, dissect_krb5_nonce },
|
|
{ BER_CLASS_CON, 2, BER_FLAGS_OPTIONAL, dissect_krb5_ctime },
|
|
{ BER_CLASS_CON, 3, BER_FLAGS_OPTIONAL, dissect_krb5_cusec },
|
|
{ BER_CLASS_CON, 4, BER_FLAGS_OPTIONAL, dissect_krb5_s_address },
|
|
{ BER_CLASS_CON, 5, BER_FLAGS_OPTIONAL, dissect_krb5_r_address },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
|
|
static int
|
|
dissect_krb5_EncKrbCredPart(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, EncKrbCredPart_sequence, hf_krb_EncKrbCredPart, ett_krb_EncKrbCredPart);
|
|
|
|
return offset;
|
|
}
|
|
|
|
#ifdef HAVE_KERBEROS
|
|
static int
|
|
dissect_krb5_decrypt_EncKrbCredPart (proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
guint8 *plaintext=NULL;
|
|
int length;
|
|
|
|
length=tvb_length_remaining(tvb, offset);
|
|
|
|
/* RFC4120 :
|
|
* EncKrbCredPart encrypted with usage
|
|
* == 14
|
|
*/
|
|
if(!plaintext){
|
|
plaintext=decrypt_krb5_data(tree, actx->pinfo, 14, length, tvb_get_ptr(tvb, offset, length), EncKrbCredPart_etype);
|
|
}
|
|
|
|
if(plaintext){
|
|
tvbuff_t *next_tvb;
|
|
next_tvb = tvb_new_real_data (plaintext,
|
|
length,
|
|
length);
|
|
tvb_set_free_cb(next_tvb, g_free);
|
|
tvb_set_child_real_data_tvbuff(tvb, next_tvb);
|
|
|
|
/* Add the decrypted data to the data source list. */
|
|
add_new_data_source(actx->pinfo, next_tvb, "EncKrbCredPart");
|
|
|
|
offset=dissect_ber_old_choice(actx, tree, next_tvb, 0, kerberos_applications_choice, -1, -1, NULL);
|
|
}
|
|
return offset;
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
dissect_krb5_encrypted_CRED_data(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
#ifdef HAVE_KERBEROS
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_encrypted_EncKrbCredPart, dissect_krb5_decrypt_EncKrbCredPart);
|
|
#else
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_encrypted_EncKrbCredPart, NULL);
|
|
#endif
|
|
return offset;
|
|
}
|
|
|
|
static ber_old_sequence_t encrypted_CRED_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_EncKrbCredPart_etype },
|
|
{ BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_kvno },
|
|
{ BER_CLASS_CON, 2, 0,
|
|
dissect_krb5_encrypted_CRED_data },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_encrypted_CRED(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, encrypted_CRED_sequence, hf_krb_CRED_enc, ett_krb_CRED_enc);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static ber_old_sequence_t CRED_BODY_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_pvno },
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_msg_type },
|
|
{ BER_CLASS_CON, 2, 0,
|
|
dissect_krb5_sq_tickets },
|
|
{ BER_CLASS_CON, 3, 0,
|
|
dissect_krb5_encrypted_CRED },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_CRED(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, CRED_BODY_sequence, hf_krb_CRED_BODY, ett_krb_CRED);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
dissect_krb5_SAFE_BODY_user_data(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
tvbuff_t *new_tvb;
|
|
offset=dissect_ber_octet_string(FALSE, actx, tree, tvb, offset, hf_krb_SAFE_BODY_user_data, &new_tvb);
|
|
if (new_tvb)
|
|
call_kerberos_callbacks(actx->pinfo, tree, new_tvb, KRB_CBTAG_SAFE_USER_DATA);
|
|
return offset;
|
|
}
|
|
static int
|
|
dissect_krb5_SAFE_BODY_timestamp(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralizedTime(FALSE, actx, tree, tvb, offset, hf_krb_SAFE_BODY_timestamp);
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_SAFE_BODY_usec(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_SAFE_BODY_usec, NULL);
|
|
return offset;
|
|
}
|
|
|
|
static ber_old_sequence_t SAFE_BODY_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_SAFE_BODY_user_data },
|
|
{ BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_SAFE_BODY_timestamp },
|
|
{ BER_CLASS_CON, 2, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_SAFE_BODY_usec },
|
|
{ BER_CLASS_CON, 3, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_seq_number },
|
|
/*XXX this one is OPTIONAL in packetcable? but mandatory in kerberos */
|
|
{ BER_CLASS_CON, 4, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_s_address },
|
|
{ BER_CLASS_CON, 5, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_HostAddresses },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_SAFE_BODY(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, SAFE_BODY_sequence, -1, -1);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
static ber_old_sequence_t SAFE_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_pvno },
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_msg_type },
|
|
{ BER_CLASS_CON, 2, 0,
|
|
dissect_krb5_SAFE_BODY },
|
|
{ BER_CLASS_CON, 3, 0,
|
|
dissect_krb5_Checksum },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_SAFE(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, SAFE_sequence, -1, -1);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
/*
|
|
* KDC-REQ-BODY ::= SEQUENCE {
|
|
* kdc-options[0] KDCOptions,
|
|
* cname[1] PrincipalName OPTIONAL,
|
|
* -- Used only in AS-REQ
|
|
* realm[2] Realm, -- Server's realm
|
|
* -- Also client's in AS-REQ
|
|
* sname[3] PrincipalName OPTIONAL,
|
|
* from[4] KerberosTime OPTIONAL,
|
|
* till[5] KerberosTime,
|
|
* rtime[6] KerberosTime OPTIONAL,
|
|
* nonce[7] INTEGER,
|
|
* etype[8] SEQUENCE OF INTEGER, -- EncryptionType,
|
|
* -- in preference order
|
|
* addresses[9] HostAddresses OPTIONAL,
|
|
* enc-authorization-data[10] EncryptedData OPTIONAL,
|
|
* -- Encrypted AuthorizationData encoding
|
|
* additional-tickets[11] SEQUENCE OF Ticket OPTIONAL
|
|
* }
|
|
*
|
|
*/
|
|
static ber_old_sequence_t KDC_REQ_BODY_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_KDCOptions },
|
|
{ BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_cname },
|
|
{ BER_CLASS_CON, 2, 0,
|
|
dissect_krb5_realm},
|
|
{ BER_CLASS_CON, 3, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_sname },
|
|
{ BER_CLASS_CON, 4, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_from },
|
|
/* this field is not optional in the kerberos spec,
|
|
* however, in the packetcable spec it is optional.
|
|
* make it optional here since normal kerberos will
|
|
* still decode the pdu correctly.
|
|
*/
|
|
{ BER_CLASS_CON, 5, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_till },
|
|
{ BER_CLASS_CON, 6, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_rtime },
|
|
{ BER_CLASS_CON, 7, 0,
|
|
dissect_krb5_nonce },
|
|
{ BER_CLASS_CON, 8, 0,
|
|
dissect_krb5_etype_sequence_of },
|
|
{ BER_CLASS_CON, 9, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_HostAddresses },
|
|
/* XXX [10] enc-authorization-data should be added */
|
|
{ BER_CLASS_CON, 11, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_sq_tickets },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_KDC_REQ_BODY(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
conversation_t *conversation;
|
|
|
|
/*
|
|
* UDP replies to KDC_REQs are sent from the server back to the client's
|
|
* source port, similar to the way TFTP works. Set up a conversation
|
|
* accordingly.
|
|
*
|
|
* Ref: Section 7.2.1 of
|
|
* http://www.ietf.org/internet-drafts/draft-ietf-krb-wg-kerberos-clarifications-07.txt
|
|
*/
|
|
if (actx->pinfo->destport == UDP_PORT_KERBEROS && actx->pinfo->ptype == PT_UDP) {
|
|
conversation = find_conversation(actx->pinfo->fd->num, &actx->pinfo->src, &actx->pinfo->dst, PT_UDP,
|
|
actx->pinfo->srcport, 0, NO_PORT_B);
|
|
if (conversation == NULL) {
|
|
conversation = conversation_new(actx->pinfo->fd->num, &actx->pinfo->src, &actx->pinfo->dst, PT_UDP,
|
|
actx->pinfo->srcport, 0, NO_PORT2);
|
|
conversation_set_dissector(conversation, kerberos_handle_udp);
|
|
}
|
|
}
|
|
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, KDC_REQ_BODY_sequence, hf_krb_KDC_REQ_BODY, ett_krb_request);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* KDC-REQ ::= SEQUENCE {
|
|
* pvno[1] INTEGER,
|
|
* msg-type[2] INTEGER,
|
|
* padata[3] SEQUENCE OF PA-DATA OPTIONAL,
|
|
* req-body[4] KDC-REQ-BODY
|
|
* }
|
|
*/
|
|
static ber_old_sequence_t KDC_REQ_sequence[] = {
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_pvno },
|
|
{ BER_CLASS_CON, 2, 0,
|
|
dissect_krb5_msg_type },
|
|
{ BER_CLASS_CON, 3, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_padata },
|
|
{ BER_CLASS_CON, 4, 0,
|
|
dissect_krb5_KDC_REQ_BODY },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_KDC_REQ(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, KDC_REQ_sequence, -1, -1);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
#ifdef HAVE_KERBEROS
|
|
static int
|
|
dissect_krb5_decrypt_authenticator_data (proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
guint8 *plaintext=NULL;
|
|
int length;
|
|
|
|
length=tvb_length_remaining(tvb, offset);
|
|
|
|
/* draft-ietf-krb-wg-kerberos-clarifications-05.txt :
|
|
* 7.5.1
|
|
* Authenticators are encrypted with usage
|
|
* == 7 or
|
|
* == 11
|
|
*/
|
|
if(!plaintext){
|
|
plaintext=decrypt_krb5_data(tree, actx->pinfo, 7, length, tvb_get_ptr(tvb, offset, length), authenticator_etype);
|
|
}
|
|
if(!plaintext){
|
|
plaintext=decrypt_krb5_data(tree, actx->pinfo, 11, length, tvb_get_ptr(tvb, offset, length), authenticator_etype);
|
|
}
|
|
|
|
if(plaintext){
|
|
tvbuff_t *next_tvb;
|
|
next_tvb = tvb_new_real_data (plaintext,
|
|
length,
|
|
length);
|
|
tvb_set_free_cb(next_tvb, g_free);
|
|
tvb_set_child_real_data_tvbuff(tvb, next_tvb);
|
|
|
|
/* Add the decrypted data to the data source list. */
|
|
add_new_data_source(actx->pinfo, next_tvb, "Decrypted Krb5");
|
|
|
|
|
|
offset=dissect_ber_old_choice(actx, tree, next_tvb, 0, kerberos_applications_choice, -1, -1, NULL);
|
|
|
|
}
|
|
return offset;
|
|
}
|
|
#endif
|
|
|
|
|
|
/*
|
|
* EncryptedData ::= SEQUENCE {
|
|
* etype[0] INTEGER, -- EncryptionType
|
|
* kvno[1] INTEGER OPTIONAL,
|
|
* cipher[2] OCTET STRING -- ciphertext
|
|
* }
|
|
*/
|
|
static int
|
|
dissect_krb5_encrypted_authenticator_data(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
#ifdef HAVE_KERBEROS
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_encrypted_authenticator_data, dissect_krb5_decrypt_authenticator_data);
|
|
#else
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_encrypted_authenticator_data, NULL);
|
|
#endif
|
|
return offset;
|
|
}
|
|
static ber_old_sequence_t encrypted_authenticator_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_authenticator_etype },
|
|
{ BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_kvno },
|
|
{ BER_CLASS_CON, 2, 0,
|
|
dissect_krb5_encrypted_authenticator_data },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_encrypted_authenticator(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, encrypted_authenticator_sequence, hf_krb_authenticator_enc, ett_krb_authenticator_enc);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
dissect_krb5_tkt_vno(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_tkt_vno, NULL);
|
|
return offset;
|
|
}
|
|
|
|
|
|
#ifdef HAVE_KERBEROS
|
|
static int
|
|
dissect_krb5_decrypt_Ticket_data (proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
guint8 *plaintext;
|
|
int length;
|
|
|
|
length=tvb_length_remaining(tvb, offset);
|
|
|
|
/* draft-ietf-krb-wg-kerberos-clarifications-05.txt :
|
|
* 7.5.1
|
|
* All Ticket encrypted parts use usage == 2
|
|
*/
|
|
if( (plaintext=decrypt_krb5_data(tree, actx->pinfo, 2, length, tvb_get_ptr(tvb, offset, length), Ticket_etype)) ){
|
|
tvbuff_t *next_tvb;
|
|
next_tvb = tvb_new_real_data (plaintext,
|
|
length,
|
|
length);
|
|
tvb_set_free_cb(next_tvb, g_free);
|
|
tvb_set_child_real_data_tvbuff(tvb, next_tvb);
|
|
|
|
/* Add the decrypted data to the data source list. */
|
|
add_new_data_source(actx->pinfo, next_tvb, "Decrypted Krb5");
|
|
|
|
|
|
offset=dissect_ber_old_choice(actx, tree, next_tvb, 0, kerberos_applications_choice, -1, -1, NULL);
|
|
|
|
}
|
|
return offset;
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
dissect_krb5_encrypted_Ticket_data(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
#ifdef HAVE_KERBEROS
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_encrypted_Ticket_data, dissect_krb5_decrypt_Ticket_data);
|
|
#else
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_encrypted_Ticket_data, NULL);
|
|
#endif
|
|
return offset;
|
|
}
|
|
static ber_old_sequence_t encrypted_Ticket_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_Ticket_etype },
|
|
{ BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_kvno },
|
|
{ BER_CLASS_CON, 2, 0,
|
|
dissect_krb5_encrypted_Ticket_data },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_Ticket_encrypted(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, encrypted_Ticket_sequence, hf_krb_ticket_enc, ett_krb_ticket_enc);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static ber_old_sequence_t Application_1_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_tkt_vno },
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_realm },
|
|
{ BER_CLASS_CON, 2, 0,
|
|
dissect_krb5_sname },
|
|
{ BER_CLASS_CON, 3, 0,
|
|
dissect_krb5_Ticket_encrypted },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_Application_1(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, Application_1_sequence, hf_krb_ticket, ett_krb_ticket);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
static const ber_old_choice_t Ticket_choice[] = {
|
|
{ 1, BER_CLASS_APP, 1, 0,
|
|
dissect_krb5_Application_1 },
|
|
{ 0, 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_Ticket(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_choice(actx, tree, tvb, offset, Ticket_choice, -1, -1, NULL);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
* AP-REQ ::= [APPLICATION 14] SEQUENCE {
|
|
* pvno[0] INTEGER,
|
|
* msg-type[1] INTEGER,
|
|
* ap-options[2] APOptions,
|
|
* ticket[3] Ticket,
|
|
* authenticator[4] EncryptedData
|
|
* }
|
|
*/
|
|
static ber_old_sequence_t AP_REQ_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_pvno },
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_msg_type },
|
|
{ BER_CLASS_CON, 2, 0,
|
|
dissect_krb5_APOptions },
|
|
{ BER_CLASS_CON, 3, 0,
|
|
dissect_krb5_Ticket },
|
|
{ BER_CLASS_CON, 4, 0,
|
|
dissect_krb5_encrypted_authenticator },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_AP_REQ(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, AP_REQ_sequence, -1, -1);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifdef HAVE_KERBEROS
|
|
static int
|
|
dissect_krb5_decrypt_AP_REP_data(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
guint8 *plaintext=NULL;
|
|
int length;
|
|
|
|
length=tvb_length_remaining(tvb, offset);
|
|
|
|
/* draft-ietf-krb-wg-kerberos-clarifications-05.txt :
|
|
* 7.5.1
|
|
* Authenticators are encrypted with usage
|
|
* == 7 or
|
|
* == 11
|
|
*/
|
|
if(!plaintext){
|
|
plaintext=decrypt_krb5_data(tree, actx->pinfo, 12, length, tvb_get_ptr(tvb, offset, length), AP_REP_etype);
|
|
}
|
|
|
|
if(plaintext){
|
|
tvbuff_t *next_tvb;
|
|
next_tvb = tvb_new_real_data (plaintext,
|
|
length,
|
|
length);
|
|
tvb_set_free_cb(next_tvb, g_free);
|
|
tvb_set_child_real_data_tvbuff(tvb, next_tvb);
|
|
|
|
/* Add the decrypted data to the data source list. */
|
|
add_new_data_source(actx->pinfo, next_tvb, "Decrypted Krb5");
|
|
|
|
|
|
offset=dissect_ber_old_choice(actx, tree, next_tvb, 0, kerberos_applications_choice, -1, -1, NULL);
|
|
|
|
}
|
|
return offset;
|
|
}
|
|
#endif
|
|
|
|
|
|
static int
|
|
dissect_krb5_encrypted_AP_REP_data(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
#ifdef HAVE_KERBEROS
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_encrypted_AP_REP_data, dissect_krb5_decrypt_AP_REP_data);
|
|
#else
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_encrypted_AP_REP_data, NULL);
|
|
#endif
|
|
return offset;
|
|
}
|
|
static ber_old_sequence_t encrypted_AP_REP_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_AP_REP_etype },
|
|
{ BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_kvno },
|
|
{ BER_CLASS_CON, 2, 0,
|
|
dissect_krb5_encrypted_AP_REP_data },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_encrypted_AP_REP(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, encrypted_AP_REP_sequence, hf_krb_AP_REP_enc, ett_krb_AP_REP_enc);
|
|
|
|
return offset;
|
|
}
|
|
|
|
/*
|
|
* AP-REP ::= [APPLICATION 15] SEQUENCE {
|
|
* pvno[0] INTEGER,
|
|
* msg-type[1] INTEGER,
|
|
* enc-part[2] EncryptedData
|
|
* }
|
|
*/
|
|
static ber_old_sequence_t AP_REP_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_pvno },
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_msg_type },
|
|
{ BER_CLASS_CON, 2, 0,
|
|
dissect_krb5_encrypted_AP_REP },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_AP_REP(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, AP_REP_sequence, -1, -1);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static guint32 KDC_REP_etype;
|
|
static int
|
|
dissect_krb5_KDC_REP_etype(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_integer(FALSE, actx, tree, tvb, offset, hf_krb_etype, &KDC_REP_etype);
|
|
if(tree){
|
|
proto_item_append_text(tree, " %s",
|
|
val_to_str(KDC_REP_etype, krb5_encryption_types,
|
|
"%#x"));
|
|
}
|
|
return offset;
|
|
}
|
|
|
|
#ifdef HAVE_KERBEROS
|
|
static int
|
|
dissect_krb5_decrypt_KDC_REP_data (proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
guint8 *plaintext=NULL;
|
|
int length;
|
|
|
|
length=tvb_length_remaining(tvb, offset);
|
|
|
|
/* draft-ietf-krb-wg-kerberos-clarifications-05.txt :
|
|
* 7.5.1
|
|
* ASREP/TGSREP encryptedparts are encrypted with usage
|
|
* == 3 or
|
|
* == 8 or
|
|
* == 9
|
|
*/
|
|
if(!plaintext){
|
|
plaintext=decrypt_krb5_data(tree, actx->pinfo, 3, length, tvb_get_ptr(tvb, offset, length), KDC_REP_etype);
|
|
}
|
|
if(!plaintext){
|
|
plaintext=decrypt_krb5_data(tree, actx->pinfo, 8, length, tvb_get_ptr(tvb, offset, length), KDC_REP_etype);
|
|
}
|
|
if(!plaintext){
|
|
plaintext=decrypt_krb5_data(tree, actx->pinfo, 9, length, tvb_get_ptr(tvb, offset, length), KDC_REP_etype);
|
|
}
|
|
|
|
if(plaintext){
|
|
tvbuff_t *next_tvb;
|
|
next_tvb = tvb_new_real_data (plaintext,
|
|
length,
|
|
length);
|
|
tvb_set_free_cb(next_tvb, g_free);
|
|
tvb_set_child_real_data_tvbuff(tvb, next_tvb);
|
|
|
|
/* Add the decrypted data to the data source list. */
|
|
add_new_data_source(actx->pinfo, next_tvb, "Decrypted Krb5");
|
|
|
|
|
|
offset=dissect_ber_old_choice(actx, tree, next_tvb, 0, kerberos_applications_choice, -1, -1, NULL);
|
|
|
|
}
|
|
return offset;
|
|
}
|
|
#endif
|
|
|
|
|
|
static int
|
|
dissect_krb5_encrypted_KDC_REP_data(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
#ifdef HAVE_KERBEROS
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_encrypted_KDC_REP_data, dissect_krb5_decrypt_KDC_REP_data);
|
|
#else
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_encrypted_KDC_REP_data, NULL);
|
|
#endif
|
|
return offset;
|
|
}
|
|
static ber_old_sequence_t encrypted_KDC_REP_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_KDC_REP_etype },
|
|
{ BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_kvno },
|
|
{ BER_CLASS_CON, 2, 0,
|
|
dissect_krb5_encrypted_KDC_REP_data },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_encrypted_KDC_REP(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, encrypted_KDC_REP_sequence, hf_krb_KDC_REP_enc, ett_krb_KDC_REP_enc);
|
|
|
|
return offset;
|
|
}
|
|
|
|
/*
|
|
* KDC-REP ::= SEQUENCE {
|
|
* pvno[0] INTEGER,
|
|
* msg-type[1] INTEGER,
|
|
* padata[2] SEQUENCE OF PA-DATA OPTIONAL,
|
|
* crealm[3] Realm,
|
|
* cname[4] PrincipalName,
|
|
* ticket[5] Ticket,
|
|
* enc-part[6] EncryptedData
|
|
* }
|
|
*/
|
|
static ber_old_sequence_t KDC_REP_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_pvno },
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_msg_type },
|
|
{ BER_CLASS_CON, 2, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_padata },
|
|
{ BER_CLASS_CON, 3, 0,
|
|
dissect_krb5_crealm },
|
|
{ BER_CLASS_CON, 4, 0,
|
|
dissect_krb5_cname },
|
|
{ BER_CLASS_CON, 5, 0,
|
|
dissect_krb5_Ticket },
|
|
{ BER_CLASS_CON, 6, 0,
|
|
dissect_krb5_encrypted_KDC_REP },
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
static int
|
|
dissect_krb5_KDC_REP(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, KDC_REP_sequence, -1, -1);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
dissect_krb5_e_text(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_GeneralString(actx, tree, tvb, offset, hf_krb_e_text, NULL, 0);
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_krb5_e_data(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
switch(krb5_errorcode){
|
|
case KRB5_ET_KRB5KDC_ERR_BADOPTION:
|
|
case KRB5_ET_KRB5KDC_ERR_CLIENT_REVOKED:
|
|
case KRB5_ET_KRB5KDC_ERR_KEY_EXP:
|
|
case KRB5_ET_KRB5KDC_ERR_POLICY:
|
|
/* ms windows kdc sends e-data of this type containing a "salt"
|
|
* that contains the nt_status code for these error codes.
|
|
*/
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_e_data, dissect_krb5_PA_DATA);
|
|
break;
|
|
case KRB5_ET_KRB5KDC_ERR_PREAUTH_REQUIRED:
|
|
case KRB5_ET_KRB5KDC_ERR_PREAUTH_FAILED:
|
|
case KRB5_ET_KRB5KDC_ERR_ETYPE_NOSUPP:
|
|
offset=dissect_ber_old_octet_string_wcb(FALSE, actx, tree, tvb, offset, hf_krb_e_data, dissect_krb5_padata);
|
|
|
|
break;
|
|
default:
|
|
offset=dissect_ber_octet_string(FALSE, actx, tree, tvb, offset, hf_krb_e_data, NULL);
|
|
}
|
|
return offset;
|
|
}
|
|
|
|
|
|
/* This optional field in KRB_ERR is used by the early drafts which
|
|
* PacketCable still use.
|
|
*/
|
|
static int
|
|
dissect_krb5_e_checksum(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, Checksum_sequence, hf_krb_e_checksum, ett_krb_e_checksum);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
/*
|
|
* KRB-ERROR ::= [APPLICATION 30] SEQUENCE {
|
|
* pvno[0] INTEGER,
|
|
* msg-type[1] INTEGER,
|
|
* ctime[2] KerberosTime OPTIONAL,
|
|
* cusec[3] INTEGER OPTIONAL,
|
|
* stime[4] KerberosTime,
|
|
* susec[5] INTEGER,
|
|
* error-code[6] INTEGER,
|
|
* crealm[7] Realm OPTIONAL,
|
|
* cname[8] PrincipalName OPTIONAL,
|
|
* realm[9] Realm, -- Correct realm
|
|
* sname[10] PrincipalName, -- Correct name
|
|
* e-text[11] GeneralString OPTIONAL,
|
|
* e-data[12] OCTET STRING OPTIONAL
|
|
* }
|
|
*
|
|
* e-data This field contains additional data about the error for use
|
|
* by the application to help it recover from or handle the
|
|
* error. If the errorcode is KDC_ERR_PREAUTH_REQUIRED, then
|
|
* the e-data field will contain an encoding of a sequence of
|
|
* padata fields, each corresponding to an acceptable pre-
|
|
* authentication method and optionally containing data for
|
|
* the method:
|
|
*/
|
|
static ber_old_sequence_t ERROR_sequence[] = {
|
|
{ BER_CLASS_CON, 0, 0,
|
|
dissect_krb5_pvno },
|
|
{ BER_CLASS_CON, 1, 0,
|
|
dissect_krb5_msg_type },
|
|
{ BER_CLASS_CON, 2, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_ctime },
|
|
{ BER_CLASS_CON, 3, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_cusec },
|
|
{ BER_CLASS_CON, 4, 0,
|
|
dissect_krb5_stime },
|
|
{ BER_CLASS_CON, 5, 0,
|
|
dissect_krb5_susec },
|
|
{ BER_CLASS_CON, 6, 0,
|
|
dissect_krb5_error_code },
|
|
{ BER_CLASS_CON, 7, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_crealm },
|
|
{ BER_CLASS_CON, 8, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_cname },
|
|
{ BER_CLASS_CON, 9, 0,
|
|
dissect_krb5_realm },
|
|
{ BER_CLASS_CON, 10, 0,
|
|
dissect_krb5_sname },
|
|
{ BER_CLASS_CON, 11, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_e_text },
|
|
{ BER_CLASS_CON, 12, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_e_data },
|
|
{ BER_CLASS_CON, 13, BER_FLAGS_OPTIONAL,
|
|
dissect_krb5_e_checksum }, /* used by PacketCable */
|
|
{ 0, 0, 0, NULL }
|
|
};
|
|
int
|
|
dissect_krb5_ERROR(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_)
|
|
{
|
|
offset=dissect_ber_old_sequence(FALSE, actx, tree, tvb, offset, ERROR_sequence, -1, -1);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
|
|
static struct { const char *set; const char *unset; } bitval = { "Set", "Not set" };
|
|
|
|
static gint dissect_kerberos_udp(tvbuff_t *tvb, packet_info *pinfo,
|
|
proto_tree *tree);
|
|
static void dissect_kerberos_tcp(tvbuff_t *tvb, packet_info *pinfo,
|
|
proto_tree *tree);
|
|
static gint dissect_kerberos_common(tvbuff_t *tvb, packet_info *pinfo,
|
|
proto_tree *tree, gboolean do_col_info,
|
|
gboolean do_col_protocol,
|
|
gboolean have_rm,
|
|
kerberos_callbacks *cb);
|
|
static void dissect_kerberos_tcp_pdu(tvbuff_t *tvb, packet_info *pinfo,
|
|
proto_tree *tree);
|
|
|
|
|
|
gint
|
|
dissect_kerberos_main(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int do_col_info, kerberos_callbacks *cb)
|
|
{
|
|
return (dissect_kerberos_common(tvb, pinfo, tree, do_col_info, FALSE, FALSE, cb));
|
|
}
|
|
|
|
guint32
|
|
kerberos_output_keytype(void)
|
|
{
|
|
return keytype;
|
|
}
|
|
|
|
static gint
|
|
dissect_kerberos_udp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
/* Some weird kerberos implementation apparently do krb4 on the krb5 port.
|
|
Since all (except weirdo transarc krb4 stuff) use
|
|
an opcode <=16 in the first byte, use this to see if it might
|
|
be krb4.
|
|
All krb5 commands start with an APPL tag and thus is >=0x60
|
|
so if first byte is <=16 just blindly assume it is krb4 then
|
|
*/
|
|
if(tvb_length(tvb) >= 1 && tvb_get_guint8(tvb, 0)<=0x10){
|
|
if(krb4_handle){
|
|
gboolean res;
|
|
|
|
res=call_dissector_only(krb4_handle, tvb, pinfo, tree);
|
|
return res;
|
|
}else{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
|
|
return dissect_kerberos_common(tvb, pinfo, tree, TRUE, TRUE, FALSE, NULL);
|
|
}
|
|
|
|
gint
|
|
kerberos_rm_to_reclen(guint krb_rm)
|
|
{
|
|
return (krb_rm & KRB_RM_RECLEN);
|
|
}
|
|
|
|
guint
|
|
get_krb_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset)
|
|
{
|
|
guint krb_rm;
|
|
gint pdulen;
|
|
|
|
krb_rm = tvb_get_ntohl(tvb, offset);
|
|
pdulen = kerberos_rm_to_reclen(krb_rm);
|
|
return (pdulen + 4);
|
|
}
|
|
|
|
static void
|
|
dissect_kerberos_tcp_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
pinfo->fragmented = TRUE;
|
|
if (dissect_kerberos_common(tvb, pinfo, tree, TRUE, TRUE, TRUE, NULL) < 0) {
|
|
/*
|
|
* The dissector failed to recognize this as a valid
|
|
* Kerberos message. Mark it as a continuation packet.
|
|
*/
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
col_set_str(pinfo->cinfo, COL_INFO, "Continuation");
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
dissect_kerberos_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
if (check_col(pinfo->cinfo, COL_PROTOCOL))
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "KRB5");
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
tcp_dissect_pdus(tvb, pinfo, tree, krb_desegment, 4, get_krb_pdu_len,
|
|
dissect_kerberos_tcp_pdu);
|
|
}
|
|
|
|
/*
|
|
* Display the TCP record mark.
|
|
*/
|
|
void
|
|
show_krb_recordmark(proto_tree *tree, tvbuff_t *tvb, gint start, guint32 krb_rm)
|
|
{
|
|
gint rec_len;
|
|
proto_item *rm_item;
|
|
proto_tree *rm_tree;
|
|
|
|
if (tree == NULL)
|
|
return;
|
|
|
|
rec_len = kerberos_rm_to_reclen(krb_rm);
|
|
rm_item = proto_tree_add_text(tree, tvb, start, 4,
|
|
"Record Mark: %u %s", rec_len, plurality(rec_len, "byte", "bytes"));
|
|
rm_tree = proto_item_add_subtree(rm_item, ett_krb_recordmark);
|
|
proto_tree_add_boolean(rm_tree, hf_krb_rm_reserved, tvb, start, 4, krb_rm);
|
|
proto_tree_add_uint(rm_tree, hf_krb_rm_reclen, tvb, start, 4, krb_rm);
|
|
}
|
|
|
|
|
|
static gint
|
|
dissect_kerberos_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
|
|
gboolean dci, gboolean do_col_protocol, gboolean have_rm,
|
|
kerberos_callbacks *cb)
|
|
{
|
|
volatile int offset = 0;
|
|
proto_tree *volatile kerberos_tree = NULL;
|
|
proto_item *volatile item = NULL;
|
|
void *saved_private_data;
|
|
asn1_ctx_t asn1_ctx;
|
|
|
|
/* TCP record mark and length */
|
|
guint32 krb_rm = 0;
|
|
gint krb_reclen = 0;
|
|
|
|
saved_private_data=pinfo->private_data;
|
|
pinfo->private_data=cb;
|
|
do_col_info=dci;
|
|
|
|
if (have_rm) {
|
|
krb_rm = tvb_get_ntohl(tvb, offset);
|
|
krb_reclen = kerberos_rm_to_reclen(krb_rm);
|
|
/*
|
|
* What is a reasonable size limit?
|
|
*/
|
|
if (krb_reclen > 10 * 1024 * 1024) {
|
|
pinfo->private_data=saved_private_data;
|
|
return (-1);
|
|
}
|
|
if (do_col_protocol) {
|
|
if (check_col(pinfo->cinfo, COL_PROTOCOL))
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "KRB5");
|
|
}
|
|
if (tree) {
|
|
item = proto_tree_add_item(tree, proto_kerberos, tvb, 0, -1, FALSE);
|
|
kerberos_tree = proto_item_add_subtree(item, ett_krb_kerberos);
|
|
}
|
|
show_krb_recordmark(kerberos_tree, tvb, offset, krb_rm);
|
|
offset += 4;
|
|
} else {
|
|
/* Do some sanity checking here,
|
|
* All krb5 packets start with a TAG class that is BER_CLASS_APP
|
|
* and a tag value that is either of the values below:
|
|
* If it doesnt look like kerberos, return 0 and let someone else have
|
|
* a go at it.
|
|
*/
|
|
gint8 tmp_class;
|
|
gboolean tmp_pc;
|
|
gint32 tmp_tag;
|
|
|
|
get_ber_identifier(tvb, offset, &tmp_class, &tmp_pc, &tmp_tag);
|
|
if(tmp_class!=BER_CLASS_APP){
|
|
pinfo->private_data=saved_private_data;
|
|
return 0;
|
|
}
|
|
switch(tmp_tag){
|
|
case KRB5_MSG_TICKET:
|
|
case KRB5_MSG_AUTHENTICATOR:
|
|
case KRB5_MSG_ENC_TICKET_PART:
|
|
case KRB5_MSG_AS_REQ:
|
|
case KRB5_MSG_AS_REP:
|
|
case KRB5_MSG_TGS_REQ:
|
|
case KRB5_MSG_TGS_REP:
|
|
case KRB5_MSG_AP_REQ:
|
|
case KRB5_MSG_AP_REP:
|
|
case KRB5_MSG_ENC_AS_REP_PART:
|
|
case KRB5_MSG_ENC_TGS_REP_PART:
|
|
case KRB5_MSG_ENC_AP_REP_PART:
|
|
case KRB5_MSG_ENC_KRB_PRIV_PART:
|
|
case KRB5_MSG_ENC_KRB_CRED_PART:
|
|
case KRB5_MSG_SAFE:
|
|
case KRB5_MSG_PRIV:
|
|
case KRB5_MSG_ERROR:
|
|
break;
|
|
default:
|
|
pinfo->private_data=saved_private_data;
|
|
return 0;
|
|
}
|
|
if (do_col_protocol) {
|
|
if (check_col(pinfo->cinfo, COL_PROTOCOL))
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "KRB5");
|
|
}
|
|
if (do_col_info) {
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
}
|
|
if (tree) {
|
|
item = proto_tree_add_item(tree, proto_kerberos, tvb, 0, -1, FALSE);
|
|
kerberos_tree = proto_item_add_subtree(item, ett_krb_kerberos);
|
|
}
|
|
}
|
|
asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
|
|
|
|
TRY {
|
|
offset=dissect_ber_old_choice(&asn1_ctx, kerberos_tree, tvb, offset, kerberos_applications_choice, -1, -1, NULL);
|
|
} CATCH_ALL {
|
|
pinfo->private_data=saved_private_data;
|
|
RETHROW;
|
|
} ENDTRY;
|
|
|
|
proto_item_set_len(item, offset);
|
|
pinfo->private_data=saved_private_data;
|
|
return offset;
|
|
}
|
|
|
|
static void
|
|
kerberos_prefs_apply_cb(void) {
|
|
#ifdef HAVE_LIBNETTLE
|
|
clear_keytab();
|
|
read_keytab_file(keytab_filename);
|
|
#endif
|
|
}
|
|
|
|
void
|
|
proto_register_kerberos(void)
|
|
{
|
|
static hf_register_info hf[] = {
|
|
{ &hf_krb_rm_reserved, {
|
|
"Reserved", "kerberos.rm.reserved", FT_BOOLEAN, 32,
|
|
&bitval, KRB_RM_RESERVED, "Record mark reserved bit", HFILL }},
|
|
{ &hf_krb_rm_reclen, {
|
|
"Record Length", "kerberos.rm.length", FT_UINT32, BASE_DEC,
|
|
NULL, KRB_RM_RECLEN, "Record length", HFILL }},
|
|
{ &hf_krb_transitedtype, {
|
|
"Type", "kerberos.transited.type", FT_UINT32, BASE_DEC,
|
|
VALS(krb5_transited_types), 0, "Transited Type", HFILL }},
|
|
{ &hf_krb_transitedcontents, {
|
|
"Contents", "kerberos.transited.contents", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "Transitent Contents string", HFILL }},
|
|
{ &hf_krb_keytype, {
|
|
"Key type", "kerberos.keytype", FT_UINT32, BASE_DEC,
|
|
VALS(krb5_encryption_types), 0, "Key Type", HFILL }},
|
|
{ &hf_krb_keyvalue, {
|
|
"Key value", "kerberos.keyvalue", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "Key value (encryption key)", HFILL }},
|
|
{ &hf_krb_adtype, {
|
|
"Type", "kerberos.adtype", FT_UINT32, BASE_DEC,
|
|
VALS(krb5_ad_types), 0, "Authorization Data Type", HFILL }},
|
|
{ &hf_krb_IF_RELEVANT_type, {
|
|
"Type", "kerberos.IF_RELEVANT.type", FT_UINT32, BASE_DEC,
|
|
VALS(krb5_ad_types), 0, "IF-RELEVANT Data Type", HFILL }},
|
|
{ &hf_krb_advalue, {
|
|
"Data", "kerberos.advalue", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "Authentication Data", HFILL }},
|
|
{ &hf_krb_IF_RELEVANT_value, {
|
|
"Data", "kerberos.IF_RELEVANT.value", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "IF_RELEVANT Data", HFILL }},
|
|
{ &hf_krb_etype, {
|
|
"Encryption type", "kerberos.etype", FT_INT32, BASE_DEC,
|
|
VALS(krb5_encryption_types), 0, "Encryption Type", HFILL }},
|
|
{ &hf_krb_addr_type, {
|
|
"Addr-type", "kerberos.addr_type", FT_UINT32, BASE_DEC,
|
|
VALS(krb5_address_types), 0, "Address Type", HFILL }},
|
|
{ &hf_krb_pac_signature_type, {
|
|
"Type", "kerberos.pac.signature.type", FT_INT32, BASE_DEC,
|
|
NULL, 0, "PAC Signature Type", HFILL }},
|
|
{ &hf_krb_name_type, {
|
|
"Name-type", "kerberos.name_type", FT_INT32, BASE_DEC,
|
|
VALS(krb5_princ_types), 0, "Type of principal name", HFILL }},
|
|
{ &hf_krb_lr_type, {
|
|
"Lr-type", "kerberos.lr_type", FT_UINT32, BASE_DEC,
|
|
VALS(krb5_lr_types), 0, "Type of lastreq value", HFILL }},
|
|
{ &hf_krb_address_ip, {
|
|
"IP Address", "kerberos.addr_ip", FT_IPv4, BASE_NONE,
|
|
NULL, 0, "IP Address", HFILL }},
|
|
{ &hf_krb_address_netbios, {
|
|
"NetBIOS Address", "kerberos.addr_nb", FT_STRING, BASE_NONE,
|
|
NULL, 0, "NetBIOS Address and type", HFILL }},
|
|
{ &hf_krb_authtime, {
|
|
"Authtime", "kerberos.authtime", FT_STRING, BASE_NONE,
|
|
NULL, 0, "Time of initial authentication", HFILL }},
|
|
{ &hf_krb_SAFE_BODY_timestamp, {
|
|
"Timestamp", "kerberos.SAFE_BODY.timestamp", FT_STRING, BASE_NONE,
|
|
NULL, 0, "Timestamp of this SAFE_BODY", HFILL }},
|
|
{ &hf_krb_patimestamp, {
|
|
"patimestamp", "kerberos.patimestamp", FT_STRING, BASE_NONE,
|
|
NULL, 0, "Time of client", HFILL }},
|
|
{ &hf_krb_pausec, {
|
|
"pausec", "kerberos.pausec", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "Microsecond component of client time", HFILL }},
|
|
{ &hf_krb_lr_time, {
|
|
"Lr-time", "kerberos.lr_time", FT_STRING, BASE_NONE,
|
|
NULL, 0, "Time of LR-entry", HFILL }},
|
|
{ &hf_krb_starttime, {
|
|
"Start time", "kerberos.starttime", FT_STRING, BASE_NONE,
|
|
NULL, 0, "The time after which the ticket is valid", HFILL }},
|
|
{ &hf_krb_endtime, {
|
|
"End time", "kerberos.endtime", FT_STRING, BASE_NONE,
|
|
NULL, 0, "The time after which the ticket has expired", HFILL }},
|
|
{ &hf_krb_key_expire, {
|
|
"Key Expiration", "kerberos.key_expiration", FT_STRING, BASE_NONE,
|
|
NULL, 0, "The time after which the key will expire", HFILL }},
|
|
{ &hf_krb_renew_till, {
|
|
"Renew-till", "kerberos.renenw_till", FT_STRING, BASE_NONE,
|
|
NULL, 0, "The maximum time we can renew the ticket until", HFILL }},
|
|
{ &hf_krb_rtime, {
|
|
"rtime", "kerberos.rtime", FT_STRING, BASE_NONE,
|
|
NULL, 0, "Renew Until timestamp", HFILL }},
|
|
{ &hf_krb_ctime, {
|
|
"ctime", "kerberos.ctime", FT_STRING, BASE_NONE,
|
|
NULL, 0, "Current Time on the client host", HFILL }},
|
|
{ &hf_krb_cusec, {
|
|
"cusec", "kerberos.cusec", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "micro second component of client time", HFILL }},
|
|
{ &hf_krb_SAFE_BODY_usec, {
|
|
"usec", "kerberos.SAFE_BODY.usec", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "micro second component of SAFE_BODY time", HFILL }},
|
|
{ &hf_krb_stime, {
|
|
"stime", "kerberos.stime", FT_STRING, BASE_NONE,
|
|
NULL, 0, "Current Time on the server host", HFILL }},
|
|
{ &hf_krb_susec, {
|
|
"susec", "kerberos.susec", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "micro second component of server time", HFILL }},
|
|
{ &hf_krb_error_code, {
|
|
"error_code", "kerberos.error_code", FT_UINT32, BASE_DEC,
|
|
VALS(krb5_error_codes), 0, "Kerberos error code", HFILL }},
|
|
{ &hf_krb_from, {
|
|
"from", "kerberos.from", FT_STRING, BASE_NONE,
|
|
NULL, 0, "From when the ticket is to be valid (postdating)", HFILL }},
|
|
{ &hf_krb_till, {
|
|
"till", "kerberos.till", FT_STRING, BASE_NONE,
|
|
NULL, 0, "When the ticket will expire", HFILL }},
|
|
{ &hf_krb_name_string, {
|
|
"Name", "kerberos.name_string", FT_STRING, BASE_NONE,
|
|
NULL, 0, "String component that is part of a PrincipalName", HFILL }},
|
|
{ &hf_krb_provsrv_location, {
|
|
"PROVSRV Location", "kerberos.provsrv_location", FT_STRING, BASE_NONE,
|
|
NULL, 0, "PacketCable PROV SRV Location", HFILL }},
|
|
{ &hf_krb_e_text, {
|
|
"e-text", "kerberos.e_text", FT_STRING, BASE_NONE,
|
|
NULL, 0, "Additional (human readable) error description", HFILL }},
|
|
{ &hf_krb_s4u2self_auth, {
|
|
"S4U2Self Auth", "kerberos.s4u2self.auth", FT_STRING, BASE_NONE,
|
|
NULL, 0, "S4U2Self authentication string", HFILL }},
|
|
{ &hf_krb_realm, {
|
|
"Realm", "kerberos.realm", FT_STRING, BASE_NONE,
|
|
NULL, 0, "Name of the Kerberos Realm", HFILL }},
|
|
{ &hf_krb_srealm, {
|
|
"SRealm", "kerberos.srealm", FT_STRING, BASE_NONE,
|
|
NULL, 0, "Name of the Kerberos SRealm", HFILL }},
|
|
{ &hf_krb_prealm, {
|
|
"Delegated Principal Realm", "kerberos.prealm", FT_STRING, BASE_NONE,
|
|
NULL, 0, "Name of the Kerberos PRealm", HFILL }},
|
|
{ &hf_krb_crealm, {
|
|
"Client Realm", "kerberos.crealm", FT_STRING, BASE_NONE,
|
|
NULL, 0, "Name of the Clients Kerberos Realm", HFILL }},
|
|
{ &hf_krb_pac_clientname, {
|
|
"Name", "kerberos.pac.name", FT_STRING, BASE_NONE,
|
|
NULL, 0, "Name of the Client in the PAC structure", HFILL }},
|
|
{ &hf_krb_msg_type, {
|
|
"MSG Type", "kerberos.msg.type", FT_UINT32, BASE_DEC,
|
|
VALS(krb5_msg_types), 0, "Kerberos Message Type", HFILL }},
|
|
{ &hf_krb_APOptions, {
|
|
"APOptions", "kerberos.apoptions", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "Kerberos APOptions bitstring", HFILL }},
|
|
{ &hf_krb_APOptions_use_session_key, {
|
|
"Use Session Key", "kerberos.apoptions.use_session_key", FT_BOOLEAN, 32,
|
|
TFS(&krb5_apoptions_use_session_key), 0x40000000, "", HFILL }},
|
|
{ &hf_krb_APOptions_mutual_required, {
|
|
"Mutual required", "kerberos.apoptions.mutual_required", FT_BOOLEAN, 32,
|
|
TFS(&krb5_apoptions_mutual_required), 0x20000000, "", HFILL }},
|
|
{ &hf_krb_KDCOptions, {
|
|
"KDCOptions", "kerberos.kdcoptions", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "Kerberos KDCOptions bitstring", HFILL }},
|
|
{ &hf_krb_TicketFlags, {
|
|
"Ticket Flags", "kerberos.ticketflags", FT_NONE, BASE_NONE,
|
|
NULL, 0, "Kerberos Ticket Flags", HFILL }},
|
|
{ &hf_krb_TicketFlags_forwardable, {
|
|
"Forwardable", "kerberos.ticketflags.forwardable", FT_BOOLEAN, 32,
|
|
TFS(&krb5_ticketflags_forwardable), 0x40000000, "Flag controlling whether the tickes are forwardable or not", HFILL }},
|
|
{ &hf_krb_TicketFlags_forwarded, {
|
|
"Forwarded", "kerberos.ticketflags.forwarded", FT_BOOLEAN, 32,
|
|
TFS(&krb5_ticketflags_forwarded), 0x20000000, "Has this ticket been forwarded?", HFILL }},
|
|
{ &hf_krb_TicketFlags_proxyable, {
|
|
"Proxyable", "kerberos.ticketflags.proxyable", FT_BOOLEAN, 32,
|
|
TFS(&krb5_ticketflags_proxyable), 0x10000000, "Flag controlling whether the tickes are proxyable or not", HFILL }},
|
|
{ &hf_krb_TicketFlags_proxy, {
|
|
"Proxy", "kerberos.ticketflags.proxy", FT_BOOLEAN, 32,
|
|
TFS(&krb5_ticketflags_proxy), 0x08000000, "Has this ticket been proxied?", HFILL }},
|
|
{ &hf_krb_TicketFlags_allow_postdate, {
|
|
"Allow Postdate", "kerberos.ticketflags.allow_postdate", FT_BOOLEAN, 32,
|
|
TFS(&krb5_ticketflags_allow_postdate), 0x04000000, "Flag controlling whether we allow postdated tickets or not", HFILL }},
|
|
{ &hf_krb_TicketFlags_postdated, {
|
|
"Postdated", "kerberos.ticketflags.postdated", FT_BOOLEAN, 32,
|
|
TFS(&krb5_ticketflags_postdated), 0x02000000, "Whether this ticket is postdated or not", HFILL }},
|
|
{ &hf_krb_TicketFlags_invalid, {
|
|
"Invalid", "kerberos.ticketflags.invalid", FT_BOOLEAN, 32,
|
|
TFS(&krb5_ticketflags_invalid), 0x01000000, "Whether this ticket is invalid or not", HFILL }},
|
|
{ &hf_krb_TicketFlags_renewable, {
|
|
"Renewable", "kerberos.ticketflags.renewable", FT_BOOLEAN, 32,
|
|
TFS(&krb5_ticketflags_renewable), 0x00800000, "Whether this ticket is renewable or not", HFILL }},
|
|
{ &hf_krb_TicketFlags_initial, {
|
|
"Initial", "kerberos.ticketflags.initial", FT_BOOLEAN, 32,
|
|
TFS(&krb5_ticketflags_initial), 0x00400000, "Whether this ticket is an initial ticket or not", HFILL }},
|
|
{ &hf_krb_TicketFlags_pre_auth, {
|
|
"Pre-Auth", "kerberos.ticketflags.pre_auth", FT_BOOLEAN, 32,
|
|
TFS(&krb5_ticketflags_pre_auth), 0x00200000, "Whether this ticket is pre-authenticated or not", HFILL }},
|
|
{ &hf_krb_TicketFlags_hw_auth, {
|
|
"HW-Auth", "kerberos.ticketflags.hw_auth", FT_BOOLEAN, 32,
|
|
TFS(&krb5_ticketflags_hw_auth), 0x00100000, "Whether this ticket is hardware-authenticated or not", HFILL }},
|
|
{ &hf_krb_TicketFlags_transited_policy_checked, {
|
|
"Transited Policy Checked", "kerberos.ticketflags.transited_policy_checked", FT_BOOLEAN, 32,
|
|
TFS(&krb5_ticketflags_transited_policy_checked), 0x00080000, "Whether this ticket is transited policy checked or not", HFILL }},
|
|
{ &hf_krb_TicketFlags_ok_as_delegate, {
|
|
"Ok As Delegate", "kerberos.ticketflags.ok_as_delegate", FT_BOOLEAN, 32,
|
|
TFS(&krb5_ticketflags_ok_as_delegate), 0x00040000, "Whether this ticket is Ok As Delegate or not", HFILL }},
|
|
{ &hf_krb_KDC_REQ_BODY, {
|
|
"KDC_REQ_BODY", "kerberos.kdc_req_body", FT_NONE, BASE_NONE,
|
|
NULL, 0, "Kerberos KDC REQuest BODY", HFILL }},
|
|
{ &hf_krb_PRIV_BODY, {
|
|
"PRIV_BODY", "kerberos.priv_body", FT_NONE, BASE_NONE,
|
|
NULL, 0, "Kerberos PRIVate BODY", HFILL }},
|
|
{ &hf_krb_CRED_BODY, {
|
|
"CRED_BODY", "kerberos.cred_body", FT_NONE, BASE_NONE,
|
|
NULL, 0, "Kerberos CREDential BODY", HFILL }},
|
|
{ &hf_krb_encrypted_PRIV, {
|
|
"Encrypted PRIV", "kerberos.enc_priv", FT_NONE, BASE_NONE,
|
|
NULL, 0, "Kerberos Encrypted PRIVate blob data", HFILL }},
|
|
{ &hf_krb_KDCOptions_forwardable, {
|
|
"Forwardable", "kerberos.kdcoptions.forwardable", FT_BOOLEAN, 32,
|
|
TFS(&krb5_kdcoptions_forwardable), 0x40000000, "Flag controlling whether the tickes are forwardable or not", HFILL }},
|
|
{ &hf_krb_KDCOptions_forwarded, {
|
|
"Forwarded", "kerberos.kdcoptions.forwarded", FT_BOOLEAN, 32,
|
|
TFS(&krb5_kdcoptions_forwarded), 0x20000000, "Has this ticket been forwarded?", HFILL }},
|
|
{ &hf_krb_KDCOptions_proxyable, {
|
|
"Proxyable", "kerberos.kdcoptions.proxyable", FT_BOOLEAN, 32,
|
|
TFS(&krb5_kdcoptions_proxyable), 0x10000000, "Flag controlling whether the tickes are proxyable or not", HFILL }},
|
|
{ &hf_krb_KDCOptions_proxy, {
|
|
"Proxy", "kerberos.kdcoptions.proxy", FT_BOOLEAN, 32,
|
|
TFS(&krb5_kdcoptions_proxy), 0x08000000, "Has this ticket been proxied?", HFILL }},
|
|
{ &hf_krb_KDCOptions_allow_postdate, {
|
|
"Allow Postdate", "kerberos.kdcoptions.allow_postdate", FT_BOOLEAN, 32,
|
|
TFS(&krb5_kdcoptions_allow_postdate), 0x04000000, "Flag controlling whether we allow postdated tickets or not", HFILL }},
|
|
{ &hf_krb_KDCOptions_postdated, {
|
|
"Postdated", "kerberos.kdcoptions.postdated", FT_BOOLEAN, 32,
|
|
TFS(&krb5_kdcoptions_postdated), 0x02000000, "Whether this ticket is postdated or not", HFILL }},
|
|
{ &hf_krb_KDCOptions_renewable, {
|
|
"Renewable", "kerberos.kdcoptions.renewable", FT_BOOLEAN, 32,
|
|
TFS(&krb5_kdcoptions_renewable), 0x00800000, "Whether this ticket is renewable or not", HFILL }},
|
|
{ &hf_krb_KDCOptions_constrained_delegation, {
|
|
"Constrained Delegation", "kerberos.kdcoptions.constrained_delegation", FT_BOOLEAN, 32,
|
|
TFS(&krb5_kdcoptions_constrained_delegation), 0x00020000, "Do we want a PAC containing constrained delegation info or not", HFILL }},
|
|
{ &hf_krb_KDCOptions_canonicalize, {
|
|
"Canonicalize", "kerberos.kdcoptions.canonicalize", FT_BOOLEAN, 32,
|
|
TFS(&krb5_kdcoptions_canonicalize), 0x00010000, "Do we want the KDC to canonicalize the principal or not", HFILL }},
|
|
{ &hf_krb_KDCOptions_opt_hardware_auth, {
|
|
"Opt HW Auth", "kerberos.kdcoptions.opt_hardware_auth", FT_BOOLEAN, 32,
|
|
NULL, 0x00100000, "Opt HW Auth flag", HFILL }},
|
|
{ &hf_krb_KDCOptions_disable_transited_check, {
|
|
"Disable Transited Check", "kerberos.kdcoptions.disable_transited_check", FT_BOOLEAN, 32,
|
|
TFS(&krb5_kdcoptions_disable_transited_check), 0x00000020, "Whether we should do transited checking or not", HFILL }},
|
|
{ &hf_krb_KDCOptions_renewable_ok, {
|
|
"Renewable OK", "kerberos.kdcoptions.renewable_ok", FT_BOOLEAN, 32,
|
|
TFS(&krb5_kdcoptions_renewable_ok), 0x00000010, "Whether we accept renewed tickets or not", HFILL }},
|
|
{ &hf_krb_KDCOptions_enc_tkt_in_skey, {
|
|
"Enc-Tkt-in-Skey", "kerberos.kdcoptions.enc_tkt_in_skey", FT_BOOLEAN, 32,
|
|
TFS(&krb5_kdcoptions_enc_tkt_in_skey), 0x00000008, "Whether the ticket is encrypted in the skey or not", HFILL }},
|
|
{ &hf_krb_KDCOptions_renew, {
|
|
"Renew", "kerberos.kdcoptions.renew", FT_BOOLEAN, 32,
|
|
TFS(&krb5_kdcoptions_renew), 0x00000002, "Is this a request to renew a ticket?", HFILL }},
|
|
{ &hf_krb_KDCOptions_validate, {
|
|
"Validate", "kerberos.kdcoptions.validate", FT_BOOLEAN, 32,
|
|
TFS(&krb5_kdcoptions_validate), 0x00000001, "Is this a request to validate a postdated ticket?", HFILL }},
|
|
{ &hf_krb_pvno, {
|
|
"Pvno", "kerberos.pvno", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "Kerberos Protocol Version Number", HFILL }},
|
|
{ &hf_krb_kvno, {
|
|
"Kvno", "kerberos.kvno", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "Version Number for the encryption Key", HFILL }},
|
|
{ &hf_krb_checksum_type, {
|
|
"Type", "kerberos.checksum.type", FT_UINT32, BASE_DEC,
|
|
VALS(krb5_checksum_types), 0, "Type of checksum", HFILL }},
|
|
{ &hf_krb_authenticator_vno, {
|
|
"Authenticator vno", "kerberos.authenticator_vno", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "Version Number for the Authenticator", HFILL }},
|
|
{ &hf_krb_encrypted_authenticator_data, {
|
|
"Authenticator data", "kerberos.authenticator.data", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "Data content of an encrypted authenticator", HFILL }},
|
|
{ &hf_krb_encrypted_EncKrbCredPart, {
|
|
"enc EncKrbCredPart", "kerberos.EncKrbCredPart.encrypted", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "Encrypted EncKrbCredPart blob", HFILL }},
|
|
{ &hf_krb_encrypted_PA_ENC_TIMESTAMP, {
|
|
"enc PA_ENC_TIMESTAMP", "kerberos.PA_ENC_TIMESTAMP.encrypted", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "Encrypted PA-ENC-TIMESTAMP blob", HFILL }},
|
|
{ &hf_krb_PAC_LOGON_INFO, {
|
|
"PAC_LOGON_INFO", "kerberos.PAC_LOGON_INFO", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "PAC_LOGON_INFO structure", HFILL }},
|
|
{ &hf_krb_PAC_CREDENTIAL_TYPE, {
|
|
"PAC_CREDENTIAL_TYPE", "kerberos.PAC_CREDENTIAL_TYPE", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "PAC_CREDENTIAL_TYPE structure", HFILL }},
|
|
{ &hf_krb_PAC_SERVER_CHECKSUM, {
|
|
"PAC_SERVER_CHECKSUM", "kerberos.PAC_SERVER_CHECKSUM", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "PAC_SERVER_CHECKSUM structure", HFILL }},
|
|
{ &hf_krb_PAC_PRIVSVR_CHECKSUM, {
|
|
"PAC_PRIVSVR_CHECKSUM", "kerberos.PAC_PRIVSVR_CHECKSUM", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "PAC_PRIVSVR_CHECKSUM structure", HFILL }},
|
|
{ &hf_krb_PAC_CLIENT_INFO_TYPE, {
|
|
"PAC_CLIENT_INFO_TYPE", "kerberos.PAC_CLIENT_INFO_TYPE", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "PAC_CLIENT_INFO_TYPE structure", HFILL }},
|
|
{ &hf_krb_PAC_CONSTRAINED_DELEGATION, {
|
|
"PAC_CONSTRAINED_DELEGATION", "kerberos.PAC_CONSTRAINED_DELEGATION", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "PAC_CONSTRAINED_DELEGATION structure", HFILL }},
|
|
{ &hf_krb_checksum_checksum, {
|
|
"checksum", "kerberos.checksum.checksum", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "Kerberos Checksum", HFILL }},
|
|
{ &hf_krb_ENC_PRIV, {
|
|
"enc PRIV", "kerberos.ENC_PRIV", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "Encrypted PRIV blob", HFILL }},
|
|
{ &hf_krb_encrypted_Ticket_data, {
|
|
"enc-part", "kerberos.ticket.data", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "The encrypted part of a ticket", HFILL }},
|
|
{ &hf_krb_encrypted_AP_REP_data, {
|
|
"enc-part", "kerberos.aprep.data", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "The encrypted part of AP-REP", HFILL }},
|
|
{ &hf_krb_encrypted_KDC_REP_data, {
|
|
"enc-part", "kerberos.kdcrep.data", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "The encrypted part of KDC-REP", HFILL }},
|
|
{ &hf_krb_PA_DATA_value, {
|
|
"Value", "kerberos.padata.value", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "Content of the PADATA blob", HFILL }},
|
|
{ &hf_krb_etype_info_salt, {
|
|
"Salt", "kerberos.etype_info.salt", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "Salt", HFILL }},
|
|
{ &hf_krb_etype_info2_salt, {
|
|
"Salt", "kerberos.etype_info2.salt", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "Salt", HFILL }},
|
|
{ &hf_krb_etype_info2_s2kparams, {
|
|
"Salt", "kerberos.etype_info.s2kparams", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "S2kparams", HFILL }},
|
|
{ &hf_krb_SAFE_BODY_user_data, {
|
|
"User Data", "kerberos.SAFE_BODY.user_data", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "SAFE BODY userdata field", HFILL }},
|
|
{ &hf_krb_PRIV_BODY_user_data, {
|
|
"User Data", "kerberos.PRIV_BODY.user_data", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "PRIV BODY userdata field", HFILL }},
|
|
{ &hf_krb_pac_signature_signature, {
|
|
"Signature", "kerberos.pac.signature.signature", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "A PAC signature blob", HFILL }},
|
|
{ &hf_krb_PA_DATA_type, {
|
|
"Type", "kerberos.padata.type", FT_UINT32, BASE_DEC,
|
|
VALS(krb5_preauthentication_types), 0, "Type of preauthentication data", HFILL }},
|
|
{ &hf_krb_nonce, {
|
|
"Nonce", "kerberos.nonce", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "Kerberos Nonce random number", HFILL }},
|
|
{ &hf_krb_tkt_vno, {
|
|
"Tkt-vno", "kerberos.tkt_vno", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "Version number for the Ticket format", HFILL }},
|
|
{ &hf_krb_KrbCredInfo, {
|
|
"KrbCredInfo", "kerberos.KrbCredInfo", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a Kerberos KrbCredInfo", HFILL }},
|
|
{ &hf_krb_HostAddress, {
|
|
"HostAddress", "kerberos.hostaddress", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a Kerberos HostAddress sequence", HFILL }},
|
|
{ &hf_krb_s_address, {
|
|
"S-Address", "kerberos.s_address", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is the Senders address", HFILL }},
|
|
{ &hf_krb_r_address, {
|
|
"R-Address", "kerberos.r_address", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is the Recipient address", HFILL }},
|
|
{ &hf_krb_key, {
|
|
"key", "kerberos.key", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a Kerberos EncryptionKey sequence", HFILL }},
|
|
{ &hf_krb_subkey, {
|
|
"Subkey", "kerberos.subkey", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a Kerberos subkey", HFILL }},
|
|
{ &hf_krb_seq_number, {
|
|
"Seq Number", "kerberos.seq_number", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "This is a Kerberos sequence number", HFILL }},
|
|
{ &hf_krb_AuthorizationData, {
|
|
"AuthorizationData", "kerberos.AuthorizationData", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a Kerberos AuthorizationData sequence", HFILL }},
|
|
{ &hf_krb_EncTicketPart, {
|
|
"EncTicketPart", "kerberos.EncTicketPart", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a decrypted Kerberos EncTicketPart sequence", HFILL }},
|
|
{ &hf_krb_EncAPRepPart, {
|
|
"EncAPRepPart", "kerberos.EncAPRepPart", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a decrypted Kerberos EncAPRepPart sequence", HFILL }},
|
|
{ &hf_krb_EncKrbPrivPart, {
|
|
"EncKrbPrivPart", "kerberos.EncKrbPrivPart", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a decrypted Kerberos EncKrbPrivPart sequence", HFILL }},
|
|
{ &hf_krb_EncKrbCredPart, {
|
|
"EncKrbCredPart", "kerberos.EncKrbCredPart", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a decrypted Kerberos EncKrbCredPart sequence", HFILL }},
|
|
{ &hf_krb_EncKDCRepPart, {
|
|
"EncKDCRepPart", "kerberos.EncKDCRepPart", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a decrypted Kerberos EncKDCRepPart sequence", HFILL }},
|
|
{ &hf_krb_LastReq, {
|
|
"LastReq", "kerberos.LastReq", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a LastReq sequence", HFILL }},
|
|
{ &hf_krb_Authenticator, {
|
|
"Authenticator", "kerberos.Authenticator", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a decrypted Kerberos Authenticator sequence", HFILL }},
|
|
{ &hf_krb_Checksum, {
|
|
"Checksum", "kerberos.Checksum", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a Kerberos Checksum sequence", HFILL }},
|
|
{ &hf_krb_HostAddresses, {
|
|
"HostAddresses", "kerberos.hostaddresses", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a list of Kerberos HostAddress sequences", HFILL }},
|
|
{ &hf_krb_IF_RELEVANT, {
|
|
"IF_RELEVANT", "kerberos.if_relevant", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a list of IF-RELEVANT sequences", HFILL }},
|
|
{ &hf_krb_etypes, {
|
|
"Encryption Types", "kerberos.etypes", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a list of Kerberos encryption types", HFILL }},
|
|
{ &hf_krb_KrbCredInfos, {
|
|
"Sequence of KrbCredInfo", "kerberos.KrbCredInfos", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a list of KrbCredInfo", HFILL }},
|
|
{ &hf_krb_sq_tickets, {
|
|
"Tickets", "kerberos.sq.tickets", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a list of Kerberos Tickets", HFILL }},
|
|
{ &hf_krb_LastReqs, {
|
|
"LastReqs", "kerberos.LastReqs", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a list of LastReq structures", HFILL }},
|
|
{ &hf_krb_sname, {
|
|
"Server Name", "kerberos.sname", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is the name part server's identity", HFILL }},
|
|
{ &hf_krb_pname, {
|
|
"Delegated Principal Name", "kerberos.pname", FT_NONE, BASE_DEC,
|
|
NULL, 0, "Identity of the delegated principal", HFILL }},
|
|
{ &hf_krb_cname, {
|
|
"Client Name", "kerberos.cname", FT_NONE, BASE_DEC,
|
|
NULL, 0, "The name part of the client principal identifier", HFILL }},
|
|
{ &hf_krb_authenticator_enc, {
|
|
"Authenticator", "kerberos.authenticator", FT_NONE, BASE_DEC,
|
|
NULL, 0, "Encrypted authenticator blob", HFILL }},
|
|
{ &hf_krb_CRED_enc, {
|
|
"EncKrbCredPart", "kerberos.encrypted_cred", FT_NONE, BASE_DEC,
|
|
NULL, 0, "Encrypted Cred blob", HFILL }},
|
|
{ &hf_krb_ticket_enc, {
|
|
"enc-part", "kerberos.ticket.enc_part", FT_NONE, BASE_DEC,
|
|
NULL, 0, "The structure holding the encrypted part of a ticket", HFILL }},
|
|
{ &hf_krb_AP_REP_enc, {
|
|
"enc-part", "kerberos.aprep.enc_part", FT_NONE, BASE_DEC,
|
|
NULL, 0, "The structure holding the encrypted part of AP-REP", HFILL }},
|
|
{ &hf_krb_KDC_REP_enc, {
|
|
"enc-part", "kerberos.kdcrep.enc_part", FT_NONE, BASE_DEC,
|
|
NULL, 0, "The structure holding the encrypted part of KDC-REP", HFILL }},
|
|
{ &hf_krb_e_data, {
|
|
"e-data", "kerberos.e_data", FT_NONE, BASE_DEC,
|
|
NULL, 0, "The e-data blob", HFILL }},
|
|
{ &hf_krb_padata, {
|
|
"padata", "kerberos.padata", FT_NONE, BASE_DEC,
|
|
NULL, 0, "Sequence of preauthentication data", HFILL }},
|
|
{ &hf_krb_ticket, {
|
|
"Ticket", "kerberos.ticket", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a Kerberos Ticket", HFILL }},
|
|
{ &hf_krb_TransitedEncoding, {
|
|
"TransitedEncoding", "kerberos.TransitedEncoding", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a Kerberos TransitedEncoding sequence", HFILL }},
|
|
{ &hf_krb_PA_PAC_REQUEST_flag, {
|
|
"PAC Request", "kerberos.pac_request.flag", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "This is a MS PAC Request Flag", HFILL }},
|
|
{ &hf_krb_w2k_pac_entries, {
|
|
"Num Entries", "kerberos.pac.entries", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "Number of W2k PAC entries", HFILL }},
|
|
{ &hf_krb_w2k_pac_version, {
|
|
"Version", "kerberos.pac.version", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "Version of PAC structures", HFILL }},
|
|
{ &hf_krb_w2k_pac_type, {
|
|
"Type", "kerberos.pac.type", FT_UINT32, BASE_DEC,
|
|
VALS(w2k_pac_types), 0, "Type of W2k PAC entry", HFILL }},
|
|
{ &hf_krb_w2k_pac_size, {
|
|
"Size", "kerberos.pac.size", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "Size of W2k PAC entry", HFILL }},
|
|
{ &hf_krb_w2k_pac_offset, {
|
|
"Offset", "kerberos.pac.offset", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "Offset to W2k PAC entry", HFILL }},
|
|
{ &hf_krb_pac_clientid, {
|
|
"ClientID", "kerberos.pac.clientid", FT_ABSOLUTE_TIME, BASE_NONE,
|
|
NULL, 0, "ClientID Timestamp", HFILL }},
|
|
{ &hf_krb_pac_namelen, {
|
|
"Name Length", "kerberos.pac.namelen", FT_UINT16, BASE_DEC,
|
|
NULL, 0, "Length of client name", HFILL }},
|
|
{ &hf_krb_e_checksum, {
|
|
"e-checksum", "kerberos.e_checksum", FT_NONE, BASE_DEC,
|
|
NULL, 0, "This is a Kerberos e-checksum", HFILL }},
|
|
{ &hf_krb_gssapi_len, {
|
|
"Length", "kerberos.gssapi.len", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "Length of GSSAPI Bnd field", HFILL }},
|
|
{ &hf_krb_gssapi_bnd, {
|
|
"Bnd", "kerberos.gssapi.bdn", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "GSSAPI Bnd field", HFILL }},
|
|
{ &hf_krb_gssapi_c_flag_deleg, {
|
|
"Deleg", "kerberos.gssapi.checksum.flags.deleg", FT_BOOLEAN, 32,
|
|
TFS(&tfs_gss_flags_deleg), KRB5_GSS_C_DELEG_FLAG, "", HFILL }},
|
|
{ &hf_krb_gssapi_c_flag_mutual, {
|
|
"Mutual", "kerberos.gssapi.checksum.flags.mutual", FT_BOOLEAN, 32,
|
|
TFS(&tfs_gss_flags_mutual), KRB5_GSS_C_MUTUAL_FLAG, "", HFILL }},
|
|
{ &hf_krb_gssapi_c_flag_replay, {
|
|
"Replay", "kerberos.gssapi.checksum.flags.replay", FT_BOOLEAN, 32,
|
|
TFS(&tfs_gss_flags_replay), KRB5_GSS_C_REPLAY_FLAG, "", HFILL }},
|
|
{ &hf_krb_gssapi_c_flag_sequence, {
|
|
"Sequence", "kerberos.gssapi.checksum.flags.sequence", FT_BOOLEAN, 32,
|
|
TFS(&tfs_gss_flags_sequence), KRB5_GSS_C_SEQUENCE_FLAG, "", HFILL }},
|
|
{ &hf_krb_gssapi_c_flag_conf, {
|
|
"Conf", "kerberos.gssapi.checksum.flags.conf", FT_BOOLEAN, 32,
|
|
TFS(&tfs_gss_flags_conf), KRB5_GSS_C_CONF_FLAG, "", HFILL }},
|
|
{ &hf_krb_gssapi_c_flag_integ, {
|
|
"Integ", "kerberos.gssapi.checksum.flags.integ", FT_BOOLEAN, 32,
|
|
TFS(&tfs_gss_flags_integ), KRB5_GSS_C_INTEG_FLAG, "", HFILL }},
|
|
{ &hf_krb_gssapi_c_flag_dce_style, {
|
|
"DCE-style", "kerberos.gssapi.checksum.flags.dce-style", FT_BOOLEAN, 32,
|
|
TFS(&tfs_gss_flags_dce_style), KRB5_GSS_C_DCE_STYLE, "", HFILL }},
|
|
{ &hf_krb_gssapi_dlgopt, {
|
|
"DlgOpt", "kerberos.gssapi.dlgopt", FT_UINT16, BASE_DEC,
|
|
NULL, 0, "GSSAPI DlgOpt", HFILL }},
|
|
{ &hf_krb_gssapi_dlglen, {
|
|
"DlgLen", "kerberos.gssapi.dlglen", FT_UINT16, BASE_DEC,
|
|
NULL, 0, "GSSAPI DlgLen", HFILL }},
|
|
{ &hf_krb_smb_nt_status,
|
|
{ "NT Status", "kerberos.smb.nt_status", FT_UINT32, BASE_HEX,
|
|
VALS(NT_errors), 0, "NT Status code", HFILL }},
|
|
{ &hf_krb_smb_unknown,
|
|
{ "Unknown", "kerberos.smb.unknown", FT_UINT32, BASE_HEX,
|
|
NULL, 0, "unknown", HFILL }},
|
|
{ &hf_krb_midl_blob_len,
|
|
{ "Blob Length", "kerberos.midl_blob_len", FT_UINT64, BASE_DEC,
|
|
NULL, 0, "Length of NDR encoded data that follows", HFILL }},
|
|
|
|
{ &hf_krb_midl_fill_bytes,
|
|
{ "Fill bytes", "kerberos.midl.fill_bytes", FT_UINT32, BASE_HEX,
|
|
NULL, 0, "Just some fill bytes", HFILL }},
|
|
|
|
{ &hf_krb_midl_version,
|
|
{ "Version", "kerberos.midl.version", FT_UINT8, BASE_DEC,
|
|
NULL, 0, "Version of pickling", HFILL }},
|
|
|
|
{ &hf_krb_midl_hdr_len,
|
|
{ "HDR Length", "kerberos.midl.hdr_len", FT_UINT16, BASE_DEC,
|
|
NULL, 0, "Length of header", HFILL }},
|
|
|
|
};
|
|
|
|
static gint *ett[] = {
|
|
&ett_krb_kerberos,
|
|
&ett_krb_KDC_REP_enc,
|
|
&ett_krb_sname,
|
|
&ett_krb_pname,
|
|
&ett_krb_cname,
|
|
&ett_krb_AP_REP_enc,
|
|
&ett_krb_padata,
|
|
&ett_krb_etypes,
|
|
&ett_krb_KrbCredInfos,
|
|
&ett_krb_sq_tickets,
|
|
&ett_krb_LastReqs,
|
|
&ett_krb_IF_RELEVANT,
|
|
&ett_krb_PA_DATA_tree,
|
|
&ett_krb_s_address,
|
|
&ett_krb_r_address,
|
|
&ett_krb_KrbCredInfo,
|
|
&ett_krb_HostAddress,
|
|
&ett_krb_HostAddresses,
|
|
&ett_krb_authenticator_enc,
|
|
&ett_krb_CRED_enc,
|
|
&ett_krb_AP_Options,
|
|
&ett_krb_KDC_Options,
|
|
&ett_krb_Ticket_Flags,
|
|
&ett_krb_request,
|
|
&ett_krb_recordmark,
|
|
&ett_krb_ticket,
|
|
&ett_krb_ticket_enc,
|
|
&ett_krb_CRED,
|
|
&ett_krb_PRIV,
|
|
&ett_krb_PRIV_enc,
|
|
&ett_krb_EncTicketPart,
|
|
&ett_krb_EncAPRepPart,
|
|
&ett_krb_EncKrbPrivPart,
|
|
&ett_krb_EncKrbCredPart,
|
|
&ett_krb_EncKDCRepPart,
|
|
&ett_krb_LastReq,
|
|
&ett_krb_Authenticator,
|
|
&ett_krb_Checksum,
|
|
&ett_krb_key,
|
|
&ett_krb_subkey,
|
|
&ett_krb_AuthorizationData,
|
|
&ett_krb_TransitedEncoding,
|
|
&ett_krb_PAC,
|
|
&ett_krb_PAC_LOGON_INFO,
|
|
&ett_krb_PAC_CREDENTIAL_TYPE,
|
|
&ett_krb_PAC_SERVER_CHECKSUM,
|
|
&ett_krb_PAC_PRIVSVR_CHECKSUM,
|
|
&ett_krb_PAC_CLIENT_INFO_TYPE,
|
|
&ett_krb_PAC_CONSTRAINED_DELEGATION,
|
|
&ett_krb_e_checksum,
|
|
&ett_krb_PAC_MIDL_BLOB,
|
|
&ett_krb_PAC_DREP
|
|
};
|
|
module_t *krb_module;
|
|
|
|
proto_kerberos = proto_register_protocol("Kerberos", "KRB5", "kerberos");
|
|
proto_register_field_array(proto_kerberos, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
/* Register preferences */
|
|
krb_module = prefs_register_protocol(proto_kerberos, kerberos_prefs_apply_cb);
|
|
prefs_register_bool_preference(krb_module, "desegment",
|
|
"Reassemble Kerberos over TCP messages spanning multiple TCP segments",
|
|
"Whether the Kerberos dissector should reassemble messages spanning multiple TCP segments."
|
|
" To use this option, you must also enable \"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.",
|
|
&krb_desegment);
|
|
#ifdef HAVE_KERBEROS
|
|
prefs_register_bool_preference(krb_module, "decrypt",
|
|
"Try to decrypt Kerberos blobs",
|
|
"Whether the dissector should try to decrypt "
|
|
"encrypted Kerberos blobs. This requires that the proper "
|
|
"keytab file is installed as well.", &krb_decrypt);
|
|
|
|
prefs_register_string_preference(krb_module, "file",
|
|
"Kerberos keytab file",
|
|
"The keytab file containing all the secrets",
|
|
&keytab_filename);
|
|
#endif
|
|
|
|
}
|
|
|
|
static int wrap_dissect_gss_kerb(tvbuff_t *tvb, int offset, packet_info *pinfo,
|
|
proto_tree *tree, guint8 *drep _U_)
|
|
{
|
|
tvbuff_t *auth_tvb;
|
|
|
|
auth_tvb = tvb_new_subset(
|
|
tvb, offset, tvb_length_remaining(tvb, offset),
|
|
tvb_reported_length_remaining(tvb, offset));
|
|
|
|
dissect_kerberos_main(auth_tvb, pinfo, tree, FALSE, NULL);
|
|
|
|
return tvb_length_remaining(tvb, offset);
|
|
}
|
|
|
|
|
|
static dcerpc_auth_subdissector_fns gss_kerb_auth_fns = {
|
|
wrap_dissect_gss_kerb, /* Bind */
|
|
wrap_dissect_gss_kerb, /* Bind ACK */
|
|
NULL, /* AUTH3 */
|
|
wrap_dissect_gssapi_verf, /* Request verifier */
|
|
wrap_dissect_gssapi_verf, /* Response verifier */
|
|
wrap_dissect_gssapi_payload, /* Request data */
|
|
wrap_dissect_gssapi_payload /* Response data */
|
|
};
|
|
|
|
|
|
void
|
|
proto_reg_handoff_kerberos(void)
|
|
{
|
|
dissector_handle_t kerberos_handle_tcp;
|
|
|
|
krb4_handle = find_dissector("krb4");
|
|
|
|
kerberos_handle_udp = new_create_dissector_handle(dissect_kerberos_udp,
|
|
proto_kerberos);
|
|
kerberos_handle_tcp = create_dissector_handle(dissect_kerberos_tcp,
|
|
proto_kerberos);
|
|
dissector_add("udp.port", UDP_PORT_KERBEROS, kerberos_handle_udp);
|
|
dissector_add("tcp.port", TCP_PORT_KERBEROS, kerberos_handle_tcp);
|
|
|
|
register_dcerpc_auth_subdissector(DCE_C_AUTHN_LEVEL_PKT_INTEGRITY,
|
|
DCE_C_RPC_AUTHN_PROTOCOL_GSS_KERBEROS,
|
|
&gss_kerb_auth_fns);
|
|
|
|
register_dcerpc_auth_subdissector(DCE_C_AUTHN_LEVEL_PKT_PRIVACY,
|
|
DCE_C_RPC_AUTHN_PROTOCOL_GSS_KERBEROS,
|
|
&gss_kerb_auth_fns);
|
|
|
|
}
|
|
|
|
/*
|
|
|
|
MISC definitions from RFC1510:
|
|
|
|
Realm ::= GeneralString
|
|
|
|
KerberosTime ::= GeneralizedTime
|
|
|
|
AuthorizationData ::= SEQUENCE OF SEQUENCE {
|
|
ad-type[0] INTEGER,
|
|
ad-data[1] OCTET STRING
|
|
}
|
|
APOptions ::= BIT STRING {
|
|
reserved(0),
|
|
use-session-key(1),
|
|
mutual-required(2)
|
|
}
|
|
|
|
|
|
TicketFlags ::= BIT STRING {
|
|
reserved(0),
|
|
forwardable(1),
|
|
forwarded(2),
|
|
proxiable(3),
|
|
proxy(4),
|
|
may-postdate(5),
|
|
postdated(6),
|
|
invalid(7),
|
|
renewable(8),
|
|
initial(9),
|
|
pre-authent(10),
|
|
hw-authent(11)
|
|
}
|
|
|
|
KDCOptions ::= BIT STRING {
|
|
reserved(0),
|
|
forwardable(1),
|
|
forwarded(2),
|
|
proxiable(3),
|
|
proxy(4),
|
|
allow-postdate(5),
|
|
postdated(6),
|
|
unused7(7),
|
|
renewable(8),
|
|
unused9(9),
|
|
unused10(10),
|
|
unused11(11),
|
|
renewable-ok(27),
|
|
enc-tkt-in-skey(28),
|
|
renew(30),
|
|
validate(31)
|
|
}
|
|
|
|
|
|
LastReq ::= SEQUENCE OF SEQUENCE {
|
|
lr-type[0] INTEGER,
|
|
lr-value[1] KerberosTime
|
|
}
|
|
|
|
Ticket ::= [APPLICATION 1] SEQUENCE {
|
|
tkt-vno[0] INTEGER,
|
|
realm[1] Realm,
|
|
sname[2] PrincipalName,
|
|
enc-part[3] EncryptedData
|
|
}
|
|
|
|
-- Encrypted part of ticket
|
|
EncTicketPart ::= [APPLICATION 3] SEQUENCE {
|
|
flags[0] TicketFlags,
|
|
key[1] EncryptionKey,
|
|
crealm[2] Realm,
|
|
cname[3] PrincipalName,
|
|
transited[4] TransitedEncoding,
|
|
authtime[5] KerberosTime,
|
|
starttime[6] KerberosTime OPTIONAL,
|
|
endtime[7] KerberosTime,
|
|
renew-till[8] KerberosTime OPTIONAL,
|
|
caddr[9] HostAddresses OPTIONAL,
|
|
authorization-data[10] AuthorizationData OPTIONAL
|
|
}
|
|
|
|
-- encoded Transited field
|
|
TransitedEncoding ::= SEQUENCE {
|
|
tr-type[0] INTEGER, -- must be registered
|
|
contents[1] OCTET STRING
|
|
}
|
|
|
|
-- Unencrypted authenticator
|
|
Authenticator ::= [APPLICATION 2] SEQUENCE {
|
|
authenticator-vno[0] INTEGER,
|
|
crealm[1] Realm,
|
|
cname[2] PrincipalName,
|
|
cksum[3] Checksum OPTIONAL,
|
|
cusec[4] INTEGER,
|
|
ctime[5] KerberosTime,
|
|
subkey[6] EncryptionKey OPTIONAL,
|
|
seq-number[7] INTEGER OPTIONAL,
|
|
authorization-data[8] AuthorizationData OPTIONAL
|
|
}
|
|
|
|
PA-DATA ::= SEQUENCE {
|
|
padata-type[1] INTEGER,
|
|
padata-value[2] OCTET STRING,
|
|
-- might be encoded AP-REQ
|
|
}
|
|
|
|
padata-type ::= PA-ENC-TIMESTAMP
|
|
padata-value ::= EncryptedData -- PA-ENC-TS-ENC
|
|
|
|
PA-ENC-TS-ENC ::= SEQUENCE {
|
|
patimestamp[0] KerberosTime, -- client's time
|
|
pausec[1] INTEGER OPTIONAL
|
|
}
|
|
|
|
EncASRepPart ::= [APPLICATION 25[25]] EncKDCRepPart
|
|
EncTGSRepPart ::= [APPLICATION 26] EncKDCRepPart
|
|
|
|
EncKDCRepPart ::= SEQUENCE {
|
|
key[0] EncryptionKey,
|
|
last-req[1] LastReq,
|
|
nonce[2] INTEGER,
|
|
key-expiration[3] KerberosTime OPTIONAL,
|
|
flags[4] TicketFlags,
|
|
authtime[5] KerberosTime,
|
|
starttime[6] KerberosTime OPTIONAL,
|
|
endtime[7] KerberosTime,
|
|
renew-till[8] KerberosTime OPTIONAL,
|
|
srealm[9] Realm,
|
|
sname[10] PrincipalName,
|
|
caddr[11] HostAddresses OPTIONAL
|
|
}
|
|
|
|
APOptions ::= BIT STRING {
|
|
reserved(0),
|
|
use-session-key(1),
|
|
mutual-required(2)
|
|
}
|
|
|
|
EncAPRepPart ::= [APPLICATION 27] SEQUENCE {
|
|
ctime[0] KerberosTime,
|
|
cusec[1] INTEGER,
|
|
subkey[2] EncryptionKey OPTIONAL,
|
|
seq-number[3] INTEGER OPTIONAL
|
|
}
|
|
|
|
KRB-SAFE ::= [APPLICATION 20] SEQUENCE {
|
|
pvno[0] INTEGER,
|
|
msg-type[1] INTEGER,
|
|
safe-body[2] KRB-SAFE-BODY,
|
|
cksum[3] Checksum
|
|
}
|
|
|
|
KRB-SAFE-BODY ::= SEQUENCE {
|
|
user-data[0] OCTET STRING,
|
|
timestamp[1] KerberosTime OPTIONAL,
|
|
usec[2] INTEGER OPTIONAL,
|
|
seq-number[3] INTEGER OPTIONAL,
|
|
s-address[4] HostAddress,
|
|
r-address[5] HostAddress OPTIONAL
|
|
}
|
|
|
|
KRB-PRIV ::= [APPLICATION 21] SEQUENCE {
|
|
pvno[0] INTEGER,
|
|
msg-type[1] INTEGER,
|
|
enc-part[3] EncryptedData
|
|
}
|
|
|
|
EncKrbPrivPart ::= [APPLICATION 28] SEQUENCE {
|
|
user-data[0] OCTET STRING,
|
|
timestamp[1] KerberosTime OPTIONAL,
|
|
usec[2] INTEGER OPTIONAL,
|
|
seq-number[3] INTEGER OPTIONAL,
|
|
s-address[4] HostAddress, -- sender's addr
|
|
r-address[5] HostAddress OPTIONAL
|
|
-- recip's addr
|
|
}
|
|
|
|
KRB-CRED ::= [APPLICATION 22] SEQUENCE {
|
|
pvno[0] INTEGER,
|
|
msg-type[1] INTEGER, -- KRB_CRED
|
|
tickets[2] SEQUENCE OF Ticket,
|
|
enc-part[3] EncryptedData
|
|
}
|
|
|
|
EncKrbCredPart ::= [APPLICATION 29] SEQUENCE {
|
|
ticket-info[0] SEQUENCE OF KrbCredInfo,
|
|
nonce[1] INTEGER OPTIONAL,
|
|
timestamp[2] KerberosTime OPTIONAL,
|
|
usec[3] INTEGER OPTIONAL,
|
|
s-address[4] HostAddress OPTIONAL,
|
|
r-address[5] HostAddress OPTIONAL
|
|
}
|
|
|
|
KrbCredInfo ::= SEQUENCE {
|
|
key[0] EncryptionKey,
|
|
prealm[1] Realm OPTIONAL,
|
|
pname[2] PrincipalName OPTIONAL,
|
|
flags[3] TicketFlags OPTIONAL,
|
|
authtime[4] KerberosTime OPTIONAL,
|
|
starttime[5] KerberosTime OPTIONAL,
|
|
endtime[6] KerberosTime OPTIONAL
|
|
renew-till[7] KerberosTime OPTIONAL,
|
|
srealm[8] Realm OPTIONAL,
|
|
sname[9] PrincipalName OPTIONAL,
|
|
caddr[10] HostAddresses OPTIONAL
|
|
}
|
|
|
|
METHOD-DATA ::= SEQUENCE of PA-DATA
|
|
|
|
If the error-code is KRB_AP_ERR_METHOD, then the e-data field will
|
|
contain an encoding of the following sequence:
|
|
|
|
METHOD-DATA ::= SEQUENCE {
|
|
method-type[0] INTEGER,
|
|
method-data[1] OCTET STRING OPTIONAL
|
|
}
|
|
|
|
EncryptionKey ::= SEQUENCE {
|
|
keytype[0] INTEGER,
|
|
keyvalue[1] OCTET STRING
|
|
}
|
|
|
|
Checksum ::= SEQUENCE {
|
|
cksumtype[0] INTEGER,
|
|
checksum[1] OCTET STRING
|
|
}
|
|
|
|
*/
|