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/*
* lib/krb5/ccache/file/fcc.h
*
* Copyright 1990,1991 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.
*
*
* This file contains constant and function declarations used in the
* file-based credential cache routines.
*/
#ifndef __KRB5_FILE_CCACHE__
#define __KRB5_FILE_CCACHE__
#define NEED_LOWLEVEL_IO
#include "k5-int.h"
#include "fcc-proto.h"
#include <stdio.h>
#define KRB5_OK 0
#define KRB5_FCC_MAXLEN 100
/*
* FCC version 2 contains type information for principals. FCC
* version 1 does not.
*
* FCC version 3 contains keyblock encryption type information, and is
* architecture independent. Previous versions are not.
*
* The code will accept version 1, 2, and 3 ccaches, and depending
* what KRB5_FCC_DEFAULT_FVNO is set to, it will create version 1, 2,
* or 3 FCC caches.
*
* The default credentials cache should be type 3 for now (see
* init_ctx.c).
*/
#define KRB5_FCC_FVNO_1 0x0501 /* krb5 v5, fcc v1 */
#define KRB5_FCC_FVNO_2 0x0502 /* krb5 v5, fcc v2 */
#define KRB5_FCC_FVNO_3 0x0503 /* krb5 v5, fcc v3 */
#define KRB5_FCC_FVNO_4 0x0504 /* krb5 v5, fcc v4 */
#define FCC_OPEN_AND_ERASE 1
#define FCC_OPEN_RDWR 2
#define FCC_OPEN_RDONLY 3
/* Credential file header tags.
* The header tags are constructed as:
* krb5_ui_2 tag
* krb5_ui_2 len
* krb5_octet data[len]
* This format allows for older versions of the fcc processing code to skip
* past unrecognized tag formats.
*/
#define FCC_TAG_DELTATIME 1
#ifndef TKT_ROOT
#ifdef MSDOS_FILESYSTEM
#define TKT_ROOT "\\tkt"
#else
#define TKT_ROOT "/tmp/tkt"
#endif
#endif
/* macros to make checking flags easier */
#define OPENCLOSE(id) (((krb5_fcc_data *)id->data)->flags & KRB5_TC_OPENCLOSE)
typedef struct _krb5_fcc_data {
char *filename;
int fd;
krb5_flags flags;
int mode; /* needed for locking code */
int version; /* version number of the file */
} krb5_fcc_data;
/* An off_t can be arbitrarily complex */
typedef struct _krb5_fcc_cursor {
off_t pos;
} krb5_fcc_cursor;
#define MAYBE_OPEN(CONTEXT, ID, MODE) \
{ \
if (OPENCLOSE (ID)) { \
krb5_error_code maybe_open_ret = krb5_fcc_open_file (CONTEXT,ID,MODE); \
if (maybe_open_ret) return maybe_open_ret; } }
#define MAYBE_CLOSE(CONTEXT, ID, RET) \
{ \
if (OPENCLOSE (ID)) { \
krb5_error_code maybe_close_ret = krb5_fcc_close_file (CONTEXT,ID); \
if (!(RET)) RET = maybe_close_ret; } }
#define MAYBE_CLOSE_IGNORE(CONTEXT, ID) \
{ \
if (OPENCLOSE (ID)) { \
(void) krb5_fcc_close_file (CONTEXT,ID); } }
/* DO NOT ADD ANYTHING AFTER THIS #endif */
#endif /* __KRB5_FILE_CCACHE__ */
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