%/*
% * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
% * unrestricted use provided that this legend is included on all tape
% * media and as a part of the software program in whole or part.  Users
% * may copy or modify Sun RPC without charge, but are not authorized
% * to license or distribute it to anyone else except as part of a product or
% * program developed by the user or with the express written consent of
% * Sun Microsystems, Inc.
% *
% * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
% * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
% * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
% *
% * Sun RPC is provided with no support and without any obligation on the
% * part of Sun Microsystems, Inc. to assist in its use, correction,
% * modification or enhancement.
% *
% * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
% * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
% * OR ANY PART THEREOF.
% *
% * In no event will Sun Microsystems, Inc. be liable for any lost revenue
% * or profits or other special, indirect and consequential damages, even if
% * Sun has been advised of the possibility of such damages.
% *
% * Sun Microsystems, Inc.
% * 2550 Garcia Avenue
% * Mountain View, California  94043
% */

%/*
% * Copyright (c) 1987, 1990 by Sun Microsystems, Inc.
% */
%
%/* from @(#)nfs_prot.x	1.3 91/03/11 TIRPC 1.0 */

#ifdef RPC_HDR
%#ifndef _rpcsvc_nfs_prot_h
%#define _rpcsvc_nfs_prot_h
#endif

const NFS_PORT          = 2049;
const NFS_MAXDATA       = 8192;
const NFS_MAXPATHLEN    = 1024;
const NFS_MAXNAMLEN	= 255;
const NFS_FHSIZE	= 32;
const NFS_COOKIESIZE	= 4;
const NFS_FIFO_DEV	= -1;	/* size kludge for named pipes */

/*
 * File types
 */
const NFSMODE_FMT  = 0170000;	/* type of file */
const NFSMODE_DIR  = 0040000;	/* directory */
const NFSMODE_CHR  = 0020000;	/* character special */
const NFSMODE_BLK  = 0060000;	/* block special */
const NFSMODE_REG  = 0100000;	/* regular */
const NFSMODE_LNK  = 0120000;	/* symbolic link */
const NFSMODE_SOCK = 0140000;	/* socket */
const NFSMODE_FIFO = 0010000;	/* fifo */

/*
 * Error status
 */
enum nfsstat {
	NFS_OK= 0,		/* no error */
	NFSERR_PERM=1,		/* Not owner */
	NFSERR_NOENT=2,		/* No such file or directory */
	NFSERR_IO=5,		/* I/O error */
	NFSERR_NXIO=6,		/* No such device or address */
	NFSERR_ACCES=13,	/* Permission denied */
	NFSERR_EXIST=17,	/* File exists */
	NFSERR_NODEV=19,	/* No such device */
	NFSERR_NOTDIR=20,	/* Not a directory*/
	NFSERR_ISDIR=21,	/* Is a directory */
	NFSERR_INVAL=22,	/* invalid argument */
	NFSERR_FBIG=27,		/* File too large */
	NFSERR_NOSPC=28,	/* No space left on device */
	NFSERR_ROFS=30,		/* Read-only file system */
	NFSERR_NAMETOOLONG=63,	/* File name too long */
	NFSERR_NOTEMPTY=66,	/* Directory not empty */
	NFSERR_DQUOT=69,	/* Disc quota exceeded */
	NFSERR_STALE=70,	/* Stale NFS file handle */
	NFSERR_WFLUSH=99	/* write cache flushed */
};

/*
 * File types
 */
enum ftype {
	NFNON = 0,	/* non-file */
	NFREG = 1,	/* regular file */
	NFDIR = 2,	/* directory */
	NFBLK = 3,	/* block special */
	NFCHR = 4,	/* character special */
	NFLNK = 5,	/* symbolic link */
	NFSOCK = 6,	/* unix domain sockets */
	NFBAD = 7,	/* unused */
	NFFIFO = 8 	/* named pipe */
};

/*
 * File access handle
 */
struct nfs_fh {
	opaque data[NFS_FHSIZE];
};

/*
 * Timeval
 */
struct nfstime {
	unsigned seconds;
	unsigned useconds;
};


/*
 * File attributes
 */
struct fattr {
	ftype type;		/* file type */
	unsigned mode;		/* protection mode bits */
	unsigned nlink;		/* # hard links */
	unsigned uid;		/* owner user id */
	unsigned gid;		/* owner group id */
	unsigned size;		/* file size in bytes */
	unsigned blocksize;	/* prefered block size */
	unsigned rdev;		/* special device # */
	unsigned blocks;	/* Kb of disk used by file */
	unsigned fsid;		/* device # */
	unsigned fileid;	/* inode # */
	nfstime	atime;		/* time of last access */
	nfstime	mtime;		/* time of last modification */
	nfstime	ctime;		/* time of last change */
};

/*
 * File attributes which can be set
 */
struct sattr {
	unsigned mode;	/* protection mode bits */
	unsigned uid;	/* owner user id */
	unsigned gid;	/* owner group id */
	unsigned size;	/* file size in bytes */
	nfstime	atime;	/* time of last access */
	nfstime	mtime;	/* time of last modification */
};


typedef string filename<NFS_MAXNAMLEN>;
typedef string nfspath<NFS_MAXPATHLEN>;

/*
 * Reply status with file attributes
 */
union attrstat switch (nfsstat status) {
case NFS_OK:
	fattr attributes;
default:
	void;
};

struct sattrargs {
	nfs_fh file;
	sattr attributes;
};

/*
 * Arguments for directory operations
 */
struct diropargs {
	nfs_fh	dir;	/* directory file handle */
	filename name;		/* name (up to NFS_MAXNAMLEN bytes) */
};

struct diropokres {
	nfs_fh file;
	fattr attributes;
};

/*
 * Results from directory operation
 */
union diropres switch (nfsstat status) {
case NFS_OK:
	diropokres diropres;
default:
	void;
};

union readlinkres switch (nfsstat status) {
case NFS_OK:
	nfspath data;
default:
	void;
};

/*
 * Arguments to remote read
 */
struct readargs {
	nfs_fh file;		/* handle for file */
	unsigned offset;	/* byte offset in file */
	unsigned count;		/* immediate read count */
	unsigned totalcount;	/* total read count (from this offset)*/
};

/*
 * Status OK portion of remote read reply
 */
struct readokres {
	fattr	attributes;	/* attributes, need for pagin*/
	opaque data<NFS_MAXDATA>;
};

union readres switch (nfsstat status) {
case NFS_OK:
	readokres reply;
default:
	void;
};

/*
 * Arguments to remote write
 */
struct writeargs {
	nfs_fh	file;		/* handle for file */
	unsigned beginoffset;	/* beginning byte offset in file */
	unsigned offset;	/* current byte offset in file */
	unsigned totalcount;	/* total write count (to this offset)*/
	opaque data<NFS_MAXDATA>;
};

struct createargs {
	diropargs where;
	sattr attributes;
};

struct renameargs {
	diropargs from;
	diropargs to;
};

struct linkargs {
	nfs_fh from;
	diropargs to;
};

struct symlinkargs {
	diropargs from;
	nfspath to;
	sattr attributes;
};


typedef opaque nfscookie[NFS_COOKIESIZE];

/*
 * Arguments to readdir
 */
struct readdirargs {
	nfs_fh dir;		/* directory handle */
	nfscookie cookie;
	unsigned count;		/* number of directory bytes to read */
};

struct entry {
	unsigned fileid;
	filename name;
	nfscookie cookie;
	entry *nextentry;
};

struct dirlist {
	entry *entries;
	bool eof;
};

union readdirres switch (nfsstat status) {
case NFS_OK:
	dirlist reply;
default:
	void;
};

struct statfsokres {
	unsigned tsize;	/* preferred transfer size in bytes */
	unsigned bsize;	/* fundamental file system block size */
	unsigned blocks;	/* total blocks in file system */
	unsigned bfree;	/* free blocks in fs */
	unsigned bavail;	/* free blocks avail to non-superuser */
};

union statfsres switch (nfsstat status) {
case NFS_OK:
	statfsokres reply;
default:
	void;
};

/*
 * Remote file service routines
 */
program NFS_PROGRAM {
	version NFS_VERSION {
		void
		NFSPROC_NULL(void) = 0;

		attrstat
		NFSPROC_GETATTR(nfs_fh) =	1;

		attrstat
		NFSPROC_SETATTR(sattrargs) = 2;

		void
		NFSPROC_ROOT(void) = 3;

		diropres
		NFSPROC_LOOKUP(diropargs) = 4;

		readlinkres
		NFSPROC_READLINK(nfs_fh) = 5;

		readres
		NFSPROC_READ(readargs) = 6;

		void
		NFSPROC_WRITECACHE(void) = 7;

		attrstat
		NFSPROC_WRITE(writeargs) = 8;

		diropres
		NFSPROC_CREATE(createargs) = 9;

		nfsstat
		NFSPROC_REMOVE(diropargs) = 10;

		nfsstat
		NFSPROC_RENAME(renameargs) = 11;

		nfsstat
		NFSPROC_LINK(linkargs) = 12;

		nfsstat
		NFSPROC_SYMLINK(symlinkargs) = 13;

		diropres
		NFSPROC_MKDIR(createargs) = 14;

		nfsstat
		NFSPROC_RMDIR(diropargs) = 15;

		readdirres
		NFSPROC_READDIR(readdirargs) = 16;

		statfsres
		NFSPROC_STATFS(nfs_fh) = 17;
	} = 2;
} = 100003;

/* Mount v2 */

const MNTPATHLEN = 1024;	/* maximum bytes in a pathname argument */
const MNTNAMLEN = 255;		/* maximum bytes in a name argument */
const FHSIZE = 32;		/* size in bytes of a file handle */

/*
 * The fhandle is the file handle that the server passes to the client.
 * All file operations are done using the file handles to refer to a file
 * or a directory. The file handle can contain whatever information the
 * server needs to distinguish an individual file.
 */
typedef opaque fhandle[FHSIZE];

/*
 * If a status of zero is returned, the call completed successfully, and
 * a file handle for the directory follows. A non-zero status indicates
 * some sort of error. The status corresponds with UNIX error numbers.
 */
union fhstatus switch (unsigned fhs_status) {
case 0:
	fhandle fhs_fhandle;
default:
	void;
};

/*
 * The type dirpath is the pathname of a directory
 */
typedef string dirpath<MNTPATHLEN>;

/*
 * The type name is used for arbitrary names (hostnames, groupnames)
 */
typedef string name<MNTNAMLEN>;

/*
 * A list of who has what mounted
 */
typedef struct mountbody *mountlist;
struct mountbody {
	name ml_hostname;
	dirpath ml_directory;
	mountlist ml_next;
};

/*
 * A list of netgroups
 */
typedef struct groupnode *groups;
struct groupnode {
	name gr_name;
	groups gr_next;
};

/*
 * A list of what is exported and to whom
 */
typedef struct exportnode *exports;
struct exportnode {
	dirpath ex_dir;
	groups ex_groups;
	exports ex_next;
};

/*
 * POSIX pathconf information
 */
struct ppathcnf {
	int	pc_link_max;	/* max links allowed */
	short	pc_max_canon;	/* max line len for a tty */
	short	pc_max_input;	/* input a tty can eat all at once */
	short	pc_name_max;	/* max file name length (dir entry) */
	short	pc_path_max;	/* max path name length (/x/y/x/.. ) */
	short	pc_pipe_buf;	/* size of a pipe (bytes) */
	u_char	pc_vdisable;	/* safe char to turn off c_cc[i] */
	char	pc_xxx;		/* alignment padding; cc_t == char */
	short	pc_mask[2];	/* validity and boolean bits */
};

program MOUNTPROG {
	/*
	 * Version one of the mount protocol communicates with version two
	 * of the NFS protocol. The only connecting point is the fhandle
	 * structure, which is the same for both protocols.
	 */
	version MOUNTVERS {
		/*
		 * Does no work. It is made available in all RPC services
		 * to allow server reponse testing and timing
		 */
		void
		MOUNTPROC_NULL(void) = 0;

		/*
		 * If fhs_status is 0, then fhs_fhandle contains the
		 * file handle for the directory. This file handle may
		 * be used in the NFS protocol. This procedure also adds
		 * a new entry to the mount list for this client mounting
		 * the directory.
		 * Unix authentication required.
		 */
		fhstatus
		MOUNTPROC_MNT(dirpath) = 1;

		/*
		 * Returns the list of remotely mounted filesystems. The
		 * mountlist contains one entry for each hostname and
		 * directory pair.
		 */
		mountlist
		MOUNTPROC_DUMP(void) = 2;

		/*
		 * Removes the mount list entry for the directory
		 * Unix authentication required.
		 */
		void
		MOUNTPROC_UMNT(dirpath) = 3;

		/*
		 * Removes all of the mount list entries for this client
		 * Unix authentication required.
		 */
		void
		MOUNTPROC_UMNTALL(void) = 4;

		/*
		 * Returns a list of all the exported filesystems, and which
		 * machines are allowed to import it.
		 */
		exports
		MOUNTPROC_EXPORT(void)  = 5;

		/*
		 * Identical to MOUNTPROC_EXPORT above
		 */
		exports
		MOUNTPROC_EXPORTALL(void) = 6;
	} = 1;

	/*
	 * Version two of the mount protocol communicates with version two
	 * of the NFS protocol.
	 * The only difference from version one is the addition of a POSIX
	 * pathconf call.
	 */
	version MOUNTVERS_POSIX {
		/*
		 * Does no work. It is made available in all RPC services
		 * to allow server reponse testing and timing
		 */
		void
		MOUNTPROC_NULL(void) = 0;

		/*
		 * If fhs_status is 0, then fhs_fhandle contains the
		 * file handle for the directory. This file handle may
		 * be used in the NFS protocol. This procedure also adds
		 * a new entry to the mount list for this client mounting
		 * the directory.
		 * Unix authentication required.
		 */
		fhstatus
		MOUNTPROC_MNT(dirpath) = 1;

		/*
		 * Returns the list of remotely mounted filesystems. The
		 * mountlist contains one entry for each hostname and
		 * directory pair.
		 */
		mountlist
		MOUNTPROC_DUMP(void) = 2;

		/*
		 * Removes the mount list entry for the directory
		 * Unix authentication required.
		 */
		void
		MOUNTPROC_UMNT(dirpath) = 3;

		/*
		 * Removes all of the mount list entries for this client
		 * Unix authentication required.
		 */
		void
		MOUNTPROC_UMNTALL(void) = 4;

		/*
		 * Returns a list of all the exported filesystems, and which
		 * machines are allowed to import it.
		 */
		exports
		MOUNTPROC_EXPORT(void)  = 5;

		/*
		 * Identical to MOUNTPROC_EXPORT above
		 */
		exports
		MOUNTPROC_EXPORTALL(void) = 6;

		/*
		 * POSIX pathconf info (Sun hack)
		 */
		ppathcnf
		MOUNTPROC_PATHCONF(dirpath) = 7;
	} = 2;
} = 100005;

#ifdef RPC_HDR
%#endif /*!_rpcsvc_nfs_prot_h*/
#endif