/*

 * auth_unix.h, Protocol for UNIX style authentication parameters for RPC

 *

 * Copyright (c) 2010, Oracle America, Inc.

 *

 * 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.

 *     * Neither the name of the "Oracle America, Inc." 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 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.

 */

/*

 * The system is very weak.  The client uses no encryption for  it

 * credentials and only sends null verifiers.  The server sends backs

 * null verifiers or optionally a verifier that suggests a new short hand

 * for the credentials.

 */

#ifndef _RPC_AUTH_UNIX_H

#define _RPC_AUTH_UNIX_H	1

#include <features.h>

#include <sys/types.h>

#include <rpc/types.h>

#include <rpc/auth.h>

#include <rpc/xdr.h>

__BEGIN_DECLS

/* The machine name is part of a credential; it may not exceed 255 bytes */

#define MAX_MACHINE_NAME 255

/* gids compose part of a credential; there may not be more than 16 of them */

#define NGRPS 16

/*

 * Unix style credentials.

 */

struct authunix_parms

  {

    u_long aup_time;

    char *aup_machname;

    __uid_t aup_uid;

    __gid_t aup_gid;

    u_int aup_len;

    __gid_t *aup_gids;

  };

extern bool_t xdr_authunix_parms (XDR *__xdrs, struct authunix_parms *__p)

     __THROW;

/*

 * If a response verifier has flavor AUTH_SHORT,

 * then the body of the response verifier encapsulates the following structure;

 * again it is serialized in the obvious fashion.

 */

struct short_hand_verf

  {

    struct opaque_auth new_cred;

  };

__END_DECLS

#endif /* rpc/auth_unix.h */