/*
 * Modifications for Lustre
 *
 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
 *
 * Author: Eric Mei <ericm@clusterfs.com>
 */

/*
 *  minimal asn1 for generic encoding/decoding of gss tokens
 *
 *  Adapted from MIT Kerberos 5-1.2.1 lib/include/krb5.h,
 *  lib/gssapi/krb5/gssapiP_krb5.h, and others
 *
 *  Copyright (c) 2000 The Regents of the University of Michigan.
 *  All rights reserved.
 *
 *  Andy Adamson   <andros@umich.edu>
 */

/*
 * Copyright 1995 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.
 *
 */

#define SIZEOF_INT 4

/* from gssapi_err_generic.h */
#define G_BAD_SERVICE_NAME		       (-2045022976L)
#define G_BAD_STRING_UID			 (-2045022975L)
#define G_NOUSER				 (-2045022974L)
#define G_VALIDATE_FAILED			(-2045022973L)
#define G_BUFFER_ALLOC			   (-2045022972L)
#define G_BAD_MSG_CTX			    (-2045022971L)
#define G_WRONG_SIZE			     (-2045022970L)
#define G_BAD_USAGE			      (-2045022969L)
#define G_UNKNOWN_QOP			    (-2045022968L)
#define G_NO_HOSTNAME			    (-2045022967L)
#define G_BAD_HOSTNAME			   (-2045022966L)
#define G_WRONG_MECH			     (-2045022965L)
#define G_BAD_TOK_HEADER			 (-2045022964L)
#define G_BAD_DIRECTION			  (-2045022963L)
#define G_TOK_TRUNC			      (-2045022962L)
#define G_REFLECT				(-2045022961L)
#define G_WRONG_TOKID			    (-2045022960L)

#define g_OID_equal(o1, o2) \
	(((o1)->len == (o2)->len) && \
	 (memcmp((o1)->data, (o2)->data, (int) (o1)->len) == 0))

__u32 g_verify_token_header(rawobj_t *mech,
			    int *body_size,
			    unsigned char **buf_in,
			    int toksize);

__u32 g_get_mech_oid(rawobj_t *mech,
		     rawobj_t *in_buf);

int g_token_size(rawobj_t *mech,
		 unsigned int body_size);

void g_make_token_header(rawobj_t *mech,
			 int body_size,
			 unsigned char **buf);