/*      $NetBSD: rpcv2.h,v 1.13 2024/12/07 02:05:55 riastradh Exp $     */

/*
 * Copyright (c) 1989, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Rick Macklem at The University of Guelph.
 *
 * 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 BY THE REGENTS 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 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.
 *
 *      @(#)rpcv2.h     8.2 (Berkeley) 3/30/95
 */

#ifndef _NFS_RPCV2_H_
#define _NFS_RPCV2_H_

#include <sys/types.h>

/*
 * Definitions for Sun RPC Version 2, from
 * "RPC: Remote Procedure Call Protocol Specification" RFC1057
 */

/* Version # */
#define RPC_VER2        2

/* Authentication */
#define RPCAUTH_NULL    0
#define RPCAUTH_UNIX    1
#define RPCAUTH_SHORT   2
#define RPCAUTH_KERB4   4
#define RPCAUTH_MAXSIZ  400
#define RPCVERF_MAXSIZ  12      /* For Kerb, can actually be 400 */
#define RPCAUTH_UNIXGIDS 16

/*
 * Constants associated with authentication flavours.
 */
#define RPCAKN_FULLNAME 0
#define RPCAKN_NICKNAME 1

/* Rpc Constants */
#define RPC_CALL        0
#define RPC_REPLY       1
#define RPC_MSGACCEPTED 0
#define RPC_MSGDENIED   1
#define RPC_PROGUNAVAIL 1
#define RPC_PROGMISMATCH        2
#define RPC_PROCUNAVAIL 3
#define RPC_GARBAGE     4               /* I like this one */
#define RPC_MISMATCH    0
#define RPC_AUTHERR     1

/* Authentication failures */
#define AUTH_BADCRED    1
#define AUTH_REJECTCRED 2
#define AUTH_BADVERF    3
#define AUTH_REJECTVERF 4
#define AUTH_TOOWEAK    5               /* Give em wheaties */

/* Sizes of rpc header parts */
#define RPC_SIZ         24
#define RPC_REPLYSIZ    28

/* RPC Prog definitions */
#define RPCPROG_MNT     100005
#define RPCMNT_VER1     1
#define RPCMNT_VER3     3
#define RPCMNT_MOUNT    1
#define RPCMNT_DUMP     2
#define RPCMNT_UMOUNT   3
#define RPCMNT_UMNTALL  4
#define RPCMNT_EXPORT   5
#define RPCMNT_NAMELEN  255
#define RPCMNT_PATHLEN  1024
#define RPCPROG_NFS     100003

/* Structs for common parts of the rpc's */
struct rpcv2_time {
        u_int32_t rpc_sec;
        u_int32_t rpc_usec;
};

/*
 * Structures used for RPCAUTH_KERB4.
 */
struct nfsrpc_fullverf {
        u_int32_t t1;
        u_int32_t t2;
        u_int32_t w2;
};

struct nfsrpc_fullblock {
        u_int32_t t1;
        u_int32_t t2;
        u_int32_t w1;
        u_int32_t w2;
};

struct nfsrpc_nickverf {
        u_int32_t kind;
        struct nfsrpc_fullverf  verf;
};

/*
 * and their sizes in bytes.. If sizeof (struct nfsrpc_xx) != these
 * constants, well then things will break in mount_nfs and nfsd.
 */
#define RPCX_FULLVERF   12
#define RPCX_FULLBLOCK  16
#define RPCX_NICKVERF   16

#ifdef NFSKERB
XXX
#else
typedef u_char                  NFSKERBKEY_T[2];
typedef u_char                  NFSKERBKEYSCHED_T[2];
#endif
#define NFS_KERBSRV     "rcmd"          /* Kerberos Service for NFS */
#define NFS_KERBTTL     (30 * 60)       /* Credential ttl (sec) */
#define NFS_KERBCLOCKSKEW (5 * 60)      /* Clock skew (sec) */
#define NFS_KERBW1(t)   (*((u_long *)(&((t).dat[((t).length + 3) & ~0x3]))))

#endif  /* _NFS_RPCV2_H_ */