Viewing: context.h
/*
Copyright (c) 2004-2006 The Regents of the University of Michigan.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _CONTEXT_H_
#define _CONTEXT_H_
#include <krb5.h>
/* Hopefully big enough to hold any serialized context */
#define MAX_CTX_LEN 4096
/* New context format flag values */
#define KRB5_CTX_FLAG_INITIATOR 0x00000001
#define KRB5_CTX_FLAG_CFX 0x00000002
#define KRB5_CTX_FLAG_ACCEPTOR_SUBKEY 0x00000004
#if HAVE_KRB5INT_DERIVE_KEY
/* Taken from crypto_int.h */
enum deriv_alg {
DERIVE_RFC3961, /* RFC 3961 section 5.1 */
#ifdef CAMELLIA
DERIVE_SP800_108_CMAC, /* NIST SP 800-108 with CMAC as PRF */
#endif
};
#ifdef HAVE_AES_SHA2_SUPPORT
extern krb5_error_code krb5int_derive_key(const void *enc,
const void *hash,
krb5_key inkey, krb5_key *outkey,
const krb5_data *in_constant,
enum deriv_alg alg);
#define ll_krb5int_derive_key(enc, inkey, outkey, in_constant, alg) \
krb5int_derive_key((enc), (NULL), (inkey), (outkey), (in_constant), \
(alg))
#else
extern krb5_error_code krb5int_derive_key(const void *enc,
krb5_key inkey, krb5_key *outkey,
const krb5_data *in_constant,
enum deriv_alg alg);
#define ll_krb5int_derive_key(enc, inkey, outkey, in_constant, alg) \
krb5int_derive_key((enc), (inkey), (outkey), (in_constant), (alg))
#endif
extern krb5_error_code krb5_k_create_key(krb5_context context,
const krb5_keyblock *key_data,
krb5_key *out);
#else /* !HAVE_KRB5INT_DERIVE_KEY */
extern krb5_error_code krb5_derive_key(const void *enc,
const krb5_keyblock *inkey,
krb5_keyblock *outkey,
const krb5_data *in_constant);
#endif
int serialize_context_for_kernel(gss_ctx_id_t *ctx, gss_buffer_desc *buf,
gss_OID mech);
int serialize_spkm3_ctx(gss_ctx_id_t *ctx, gss_buffer_desc *buf);
int serialize_krb5_ctx(gss_ctx_id_t *ctx, gss_buffer_desc *buf);
#endif /* _CONTEXT_H_ */
