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/*
* Copyright (c) 2019-2020, AuriStor, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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
* COPYRIGHT HOLDER 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 SANON_LOCL_H
#define SANON_LOCL_H 1
#include <config.h>
#include <krb5_locl.h> /* for _krb5_SP800_108_HMAC_KDF() */
#include <hcrypto/x25519_ref10.h>
#include <gssapi.h>
#include <gkrb5_err.h> /* for GSS_KRB5_S_XXX */
#include "mech/mech_locl.h"
typedef struct sanon_ctx_desc {
/* X25519 ECDH secret key */
uint8_t sk[crypto_scalarmult_curve25519_BYTES];
/* X25519 ECDH public key */
uint8_t pk[crypto_scalarmult_curve25519_BYTES];
/* krb5 context for message protection/PRF */
gss_ctx_id_t rfc4121;
unsigned is_initiator : 1;
} *sanon_ctx;
extern gss_name_t _gss_sanon_anonymous_identity;
extern gss_name_t _gss_sanon_non_anonymous_identity;
extern gss_cred_id_t _gss_sanon_anonymous_cred;
extern gss_cred_id_t _gss_sanon_non_anonymous_cred;
#include "sanon-private.h"
#define SANON_WELLKNOWN_USER_NAME "WELLKNOWN/ANONYMOUS@WELLKNOWN:ANONYMOUS"
#define SANON_WELLKNOWN_USER_NAME_LEN (sizeof(SANON_WELLKNOWN_USER_NAME) - 1)
extern gss_buffer_t _gss_sanon_wellknown_user_name;
#define SANON_WELLKNOWN_SERVICE_NAME "WELLKNOWN@ANONYMOUS"
#define SANON_WELLKNOWN_SERVICE_NAME_LEN (sizeof(SANON_WELLKNOWN_SERVICE_NAME) - 1)
extern gss_buffer_t _gss_sanon_wellknown_service_name;
static inline int
buffer_equal_p(gss_const_buffer_t b1, gss_const_buffer_t b2)
{
return b1->length == b2->length &&
memcmp(b1->value, b2->value, b2->length) == 0;
}
/* flags that are valid to be sent from a SAnon initiator in the flags field */
#define SANON_PROTOCOL_FLAG_MASK ( GSS_C_DCE_STYLE | GSS_C_IDENTIFY_FLAG | GSS_C_EXTENDED_ERROR_FLAG )
#endif /* SANON_LOCL_H */
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