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/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/* lib/krb5/krb/authdata.h */
/*
* Copyright (C) 2009 by the Massachusetts Institute of Technology.
* All rights reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*/
#ifndef KRB_AUTHDATA_H
#define KRB_AUTHDATA_H
#include <k5-int.h>
#include "k5-utf8.h"
/* authdata.c */
krb5_error_code
krb5int_authdata_verify(krb5_context context,
krb5_authdata_context,
krb5_flags usage,
const krb5_auth_context *auth_context,
const krb5_keyblock *key,
const krb5_ap_req *ap_req);
/* PAC */
/*
* A PAC consists of a sequence of PAC_INFO_BUFFERs, preceeded by
* a PACTYPE header. Decoding the contents of the buffers is left
* to the application (notwithstanding signature verification).
*/
typedef struct _PAC_INFO_BUFFER {
krb5_ui_4 ulType;
krb5_ui_4 cbBufferSize;
uint64_t Offset;
} PAC_INFO_BUFFER;
typedef struct _PACTYPE {
krb5_ui_4 cBuffers;
krb5_ui_4 Version;
PAC_INFO_BUFFER Buffers[1];
} PACTYPE;
struct krb5_pac_data {
PACTYPE *pac; /* PAC header + info buffer array */
krb5_data data; /* PAC data (including uninitialised header) */
krb5_boolean verified;
};
#define PAC_ALIGNMENT 8
#define PACTYPE_LENGTH 8U
#define PAC_SIGNATURE_DATA_LENGTH 4U
#define PAC_CLIENT_INFO_LENGTH 10U
#define PAC_INFO_BUFFER_LENGTH 16
#define NT_TIME_EPOCH 11644473600LL
extern krb5plugin_authdata_client_ftable_v0 krb5int_mspac_authdata_client_ftable;
extern krb5plugin_authdata_client_ftable_v0 krb5int_s4u2proxy_authdata_client_ftable;
krb5_error_code
k5_pac_locate_buffer(krb5_context context,
const krb5_pac pac,
krb5_ui_4 type,
krb5_data *data);
krb5_error_code
k5_pac_validate_client(krb5_context context,
const krb5_pac pac,
krb5_timestamp authtime,
krb5_const_principal principal);
krb5_error_code
k5_pac_add_buffer(krb5_context context,
krb5_pac pac,
krb5_ui_4 type,
const krb5_data *data,
krb5_boolean zerofill,
krb5_data *out_data);
krb5_error_code
k5_seconds_since_1970_to_time(krb5_timestamp elapsedSeconds, uint64_t *ntTime);
#endif /* !KRB_AUTHDATA_H */
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