xref: /titanic_41/usr/src/uts/common/nfs/nfs.h (revision eb82ff87b34e625264561b2d267577cf9821dab0)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 /*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
27 /*	  All Rights Reserved  	*/
28 
29 #ifndef	_NFS_NFS_H
30 #define	_NFS_NFS_H
31 
32 /*	nfs.h 2.38 88/08/19 SMI 	*/
33 
34 #include <sys/isa_defs.h>
35 #include <sys/vfs.h>
36 #include <sys/stream.h>
37 #include <rpc/types.h>
38 #include <sys/types32.h>
39 #ifdef _KERNEL
40 #include <rpc/rpc_rdma.h>
41 #include <rpc/rpc.h>
42 #include <sys/fcntl.h>
43 #include <sys/kstat.h>
44 #include <sys/dirent.h>
45 #include <sys/zone.h>
46 #include <sys/tsol/label.h>
47 #include <sys/nvpair.h>
48 #include <nfs/mount.h>
49 #include <sys/vfs_opreg.h>
50 #endif
51 #include <vm/page.h>
52 #include <rpc/rpc_sztypes.h>
53 #include <sys/sysmacros.h>
54 #ifdef	__cplusplus
55 extern "C" {
56 #endif
57 
58 /*
59  * Solaris NFS daemons configuration file location
60  */
61 #define	NFSADMIN	"/etc/default/nfs"
62 
63 /*
64  * remote file service numbers
65  */
66 #define	NFS_PROGRAM	((rpcprog_t)100003)
67 #define	NFS_VERSMIN	((rpcvers_t)2)
68 #define	NFS_VERSMAX	((rpcvers_t)4)
69 #define	NFS_VERSION	((rpcvers_t)2)
70 #define	NFS_PORT	2049
71 
72 /*
73  * Used to determine registration and service handling of versions
74  */
75 #define	NFS_VERSMIN_DEFAULT	((rpcvers_t)2)
76 #define	NFS_VERSMAX_DEFAULT	((rpcvers_t)4)
77 
78 extern rpcvers_t nfs_versmin;
79 extern rpcvers_t nfs_versmax;
80 
81 /*
82  * Default delegation setting for the server ==> "on"
83  */
84 #define	NFS_SERVER_DELEGATION_DEFAULT	(TRUE)
85 
86 /* Maximum size of data portion of a remote request */
87 #define	NFS_MAXDATA	8192
88 #define	NFS_MAXNAMLEN	255
89 #define	NFS_MAXPATHLEN	1024
90 
91 /*
92  * Rpc retransmission parameters
93  */
94 #define	NFS_TIMEO	11	/* initial timeout for clts in 10th of a sec */
95 #define	NFS_RETRIES	5	/* times to retry request */
96 #define	NFS_COTS_TIMEO	600	/* initial timeout for cots in 10th of a sec */
97 
98 /*
99  * The value of UID_NOBODY/GID_NOBODY presented to the world via NFS.
100  * UID_NOBODY/GID_NOBODY is translated to NFS_UID_NOBODY/NFS_GID_NOBODY
101  * when being sent out over the network and NFS_UID_NOBODY/NFS_GID_NOBODY
102  * is translated to UID_NOBODY/GID_NOBODY when received.
103  */
104 #define	NFS_UID_NOBODY	-2
105 #define	NFS_GID_NOBODY	-2
106 
107 /*
108  * maximum transfer size for different interfaces
109  */
110 #define	ECTSIZE	2048
111 #define	IETSIZE	8192
112 
113 /*
114  * WebNFS error status
115  */
116 enum wnfsstat {
117 	WNFSERR_CLNT_FLAVOR = 20001	/* invalid client sec flavor */
118 };
119 
120 /*
121  * Error status
122  * Should include all possible net errors.
123  * For now we just cast errno into an enum nfsstat.
124  */
125 enum nfsstat {
126 	NFS_OK = 0,			/* no error */
127 	NFSERR_PERM = 1,		/* Not owner */
128 	NFSERR_NOENT = 2,		/* No such file or directory */
129 	NFSERR_IO = 5,			/* I/O error */
130 	NFSERR_NXIO = 6,		/* No such device or address */
131 	NFSERR_ACCES = 13,		/* Permission denied */
132 	NFSERR_EXIST = 17,		/* File exists */
133 	NFSERR_XDEV = 18,		/* Cross-device link */
134 	NFSERR_NODEV = 19,		/* No such device */
135 	NFSERR_NOTDIR = 20,		/* Not a directory */
136 	NFSERR_ISDIR = 21,		/* Is a directory */
137 	NFSERR_INVAL = 22,		/* Invalid argument */
138 	NFSERR_FBIG = 27,		/* File too large */
139 	NFSERR_NOSPC = 28,		/* No space left on device */
140 	NFSERR_ROFS = 30,		/* Read-only file system */
141 	NFSERR_OPNOTSUPP = 45,		/* Operation not supported */
142 	NFSERR_NAMETOOLONG = 63,	/* File name too long */
143 	NFSERR_NOTEMPTY = 66,		/* Directory not empty */
144 	NFSERR_DQUOT = 69,		/* Disc quota exceeded */
145 	NFSERR_STALE = 70,		/* Stale NFS file handle */
146 	NFSERR_REMOTE = 71,		/* Object is remote */
147 	NFSERR_WFLUSH = 99		/* write cache flushed */
148 };
149 
150 typedef enum nfsstat nfsstat;
151 
152 /*
153  * File types
154  */
155 enum nfsftype {
156 	NFNON,
157 	NFREG,		/* regular file */
158 	NFDIR,		/* directory */
159 	NFBLK,		/* block special */
160 	NFCHR,		/* character special */
161 	NFLNK,		/* symbolic link */
162 	NFSOC		/* socket */
163 };
164 
165 /*
166  * Macros for converting device numbers to and from the format
167  * SunOS 4.x used. SVR4 uses 14 bit majors and 18 bits minors,
168  * SunOS 4.x used 8 bit majors and 8 bit minors. It isn't sufficient
169  * to use the cmpdev() and expdev() macros because they only compress
170  * 7 bit (and smaller) majors. We must compress 8 bit majors too.
171  * If the major or minor exceeds 8 bits, then we send it out in
172  * full 32 bit format and hope that the peer can deal with it.
173  */
174 
175 #define	SO4_BITSMAJOR	8	/* # of SunOS 4.x major device bits */
176 #define	SO4_BITSMINOR	8	/* # of SunOS 4.x minor device bits */
177 #define	SO4_MAXMAJ	0xff	/* SunOS 4.x max major value */
178 #define	SO4_MAXMIN	0xff	/* SunOS 4.x max minor value */
179 
180 /*
181  * Convert to over-the-wire device number format
182  */
183 #define	nfsv2_cmpdev(x) \
184 	((uint32_t) \
185 	((getmajor(x) > SO4_MAXMAJ || getminor(x) > SO4_MAXMIN) ? NODEV : \
186 	((getmajor(x) << SO4_BITSMINOR) | (getminor(x) & SO4_MAXMIN))))
187 
188 /*
189  * Convert from over-the-wire format to SVR4 device number format
190  */
191 #define	nfsv2_expdev(x) \
192 	makedevice((((x) >> SO4_BITSMINOR) & SO4_MAXMAJ), (x) & SO4_MAXMIN)
193 
194 /*
195  * Special kludge for fifos (named pipes)  [to adhere to NFS Protocol Spec]
196  *
197  * VFIFO is not in the protocol spec (VNON will be replaced by VFIFO)
198  * so the over-the-wire representation is VCHR with a '-1' device number.
199  *
200  * NOTE: This kludge becomes unnecessary with the Protocol Revision,
201  *	 but it may be necessary to support it (backwards compatibility).
202  */
203 #define	NFS_FIFO_TYPE	NFCHR
204 #define	NFS_FIFO_MODE	S_IFCHR
205 #define	NFS_FIFO_DEV	((uint32_t)-1)
206 
207 /* identify fifo in nfs attributes */
208 #define	NA_ISFIFO(NA)	(((NA)->na_type == NFS_FIFO_TYPE) && \
209 			    ((NA)->na_rdev == NFS_FIFO_DEV))
210 
211 /* set fifo in nfs attributes */
212 #define	NA_SETFIFO(NA)	{ \
213 		(NA)->na_type = NFS_FIFO_TYPE; \
214 		(NA)->na_rdev = NFS_FIFO_DEV; \
215 		(NA)->na_mode = ((NA)->na_mode & ~S_IFMT) | NFS_FIFO_MODE; \
216 		}
217 
218 /*
219  * Check for time overflow using a kernel tunable to determine whether
220  * we should accept or reject an unsigned 32-bit time value. Time value in NFS
221  * v2/3 protocol is unsigned 32 bit, but ILP32 kernel only allows 31 bits.
222  * In nfsv4, time value is a signed 64 bit, so needs to be checked for
223  * overflow as well (e.g. for setattr). So define the tunable as follows:
224  * nfs_allow_preepoch_time is TRUE if pre-epoch (negative) times are allowed
225  * and is FALSE (the default) otherwise. For nfsv2/3 this means that
226  * if negative times are allowed, the uint32_t time value is interpreted
227  * as a signed int, otherwise as a large positive number. For nfsv4,
228  * we use the value as is - except that if negative times are not allowed,
229  * we will not accept a negative value otw.
230  *
231  * So for nfsv2/3 (uint32_t):
232  *
233  * If nfs_allow_preepoch_time is
234  * FALSE, the maximum time value is INT32_MAX for 32-bit kernels and
235  * UINT32_MAX for 64-bit kernels (to allow times larger than 2038)
236  * and the minimum is zero. Note that in that case, a 32-bit application
237  * running on a 64-bit kernel will not be able to access files with
238  * the larger time values.
239  * If nfs_allow_preepoch_time is TRUE, the maximum time value is INT32_MAX
240  * for both kernel configurations and the minimum is INT32_MIN.
241  *
242  * And for nfsv4 (int64_t):
243  *
244  * nfsv4 allows for negative values in the protocol, and has a 64-bit
245  * time field, so nfs_allow_preepoch_time can be ignored.
246  */
247 #ifdef _KERNEL
248 
249 extern bool_t		nfs_allow_preepoch_time;
250 
251 #ifdef _LP64
252 
253 /*
254  * If no negative otw values are allowed, may use the full 32-bits of the
255  * time to represent time later than 2038, by presenting the value as an
256  * unsigned (but this can only be used by 64-bit apps due to cstat32
257  * restrictions). If negative values are allowed, cannot represent times
258  * after 2038. Either way, all 32 bits have a valid representation.
259  */
260 
261 /* Check if nfstime4 seconds (int64_t) can be stored in the system time */
262 #define	NFS4_TIME_OK(tt)	TRUE
263 
264 
265 #define	NFS3_TIME_OVERFLOW(tt)	(FALSE)
266 #define	NFS2_TIME_OVERFLOW(tt)	(FALSE)
267 
268 /*
269  * check if a time_t (int64_t) is ok when preepoch times are allowed -
270  * nfsv2/3: every 32-bit value is accepted, but can't overflow 64->32.
271  * nfsv4: every value is valid.
272  */
273 #define	NFS_PREEPOCH_TIME_T_OK(tt)					\
274 	(((tt) >= (time_t)INT32_MIN) && ((tt) <= (time_t)INT32_MAX))
275 
276 /*
277  * check if a time_t (int64_t) is ok when preepoch times are not allowed -
278  * nfsv2/3: every positive 32-bit value is accepted, but can't overflow 64->32.
279  * nfsv4: every value is valid.
280  */
281 #define	NFS_NO_PREEPOCH_TIME_T_OK(tt)					\
282 	(((tt) >= 0) && ((tt) <= (time_t)(ulong_t)UINT32_MAX))
283 
284 #else /* not _LP64 */
285 
286 /*
287  * Cannot represent times after 2038 in a 32-bit kernel, but we may wish to
288  * restrict the use of negative values (which violate the protocol).
289  * So if negative times allowed, all uint32 time values are valid. Otherwise
290  * only those which are less than INT32_MAX (msb=0).
291  *
292  * NFSv4 uses int64_t for the time, so in a 32-bit kernel the nfsv4 value
293  * must fit in an int32_t.
294  */
295 
296 /* Only allow signed 32-bit time values */
297 
298 /* Check if an nfstime4 (int64_t) can be stored in the system time */
299 #define	NFS4_TIME_OK(tt)						\
300 	(((tt) <= INT32_MAX) &&	((tt) >= INT32_MIN))
301 
302 #define	NFS3_TIME_OVERFLOW(tt)	((tt) > INT32_MAX)
303 #define	NFS2_TIME_OVERFLOW(tt)	((tt) > INT32_MAX)
304 
305 /*
306  * check if a time_t (int32_t) is ok when preepoch times are allowed -
307  * every 32-bit value is accepted
308  */
309 #define	NFS_PREEPOCH_TIME_T_OK(tt)	TRUE
310 
311 /*
312  * check if a time_t (int32_t) is ok when preepoch times are not allowed -
313  * only positive values are accepted.
314  */
315 #define	NFS_NO_PREEPOCH_TIME_T_OK(tt)	((tt) >= 0)
316 
317 #endif /* _LP64 */
318 
319 /* Check if an nfstime3 (uint32_t) can be stored in the system time */
320 #define	NFS3_TIME_OK(tt)						\
321 	(nfs_allow_preepoch_time || (!NFS3_TIME_OVERFLOW(tt)))
322 
323 /* Check if an nfs2_timeval (uint32_t) can be stored in the system time. */
324 #define	NFS2_TIME_OK(tt)						\
325 	(nfs_allow_preepoch_time || (!NFS2_TIME_OVERFLOW(tt)))
326 
327 /*
328  * Test if time_t (signed long) can be sent over the wire - for v2/3 only if:
329  * 1. The time value can fit in a uint32_t; and
330  * 2. Either the time value is positive or allow preepoch times.
331  * No restrictions for nfsv4.
332  */
333 #define	NFS_TIME_T_OK(tt)						\
334 	(nfs_allow_preepoch_time ?					\
335 		NFS_PREEPOCH_TIME_T_OK(tt) : NFS_NO_PREEPOCH_TIME_T_OK(tt))
336 
337 #define	NFS4_TIME_T_OK(tt)		TRUE
338 
339 /* Test if all attr times are valid */
340 #define	NFS_VAP_TIME_OK(vap)						\
341 	(nfs_allow_preepoch_time ?					\
342 		(NFS_PREEPOCH_TIME_T_OK((vap)->va_atime.tv_sec) &&	\
343 		NFS_PREEPOCH_TIME_T_OK((vap)->va_mtime.tv_sec) &&	\
344 		NFS_PREEPOCH_TIME_T_OK((vap)->va_ctime.tv_sec)) :	\
345 		(NFS_NO_PREEPOCH_TIME_T_OK((vap)->va_atime.tv_sec) &&	\
346 		NFS_NO_PREEPOCH_TIME_T_OK((vap)->va_mtime.tv_sec) &&	\
347 		NFS_NO_PREEPOCH_TIME_T_OK((vap)->va_ctime.tv_sec)))
348 
349 #define	NFS4_VAP_TIME_OK(vap)			TRUE
350 
351 /*
352  * To extend the sign or not extend the sign, that is the question.
353  * Note: The correct way is to code a macro:
354  * #define	NFS_TIME_T_CONVERT(tt)					\
355  *	(nfs_allow_preepoch_time ? (int32_t)(tt) : (uint32_t)(tt))
356  * But the 64-bit compiler does not extend the sign in that case (why?)
357  * so we'll do it the ugly way...
358  */
359 #define	NFS_TIME_T_CONVERT(systt, tt)		\
360 	if (nfs_allow_preepoch_time) {		\
361 		systt = (int32_t)(tt);		\
362 	} else {				\
363 		systt = (uint32_t)(tt);		\
364 	}
365 
366 /* macro to check for overflowed time attribute fields - version 3 */
367 #define	NFS3_FATTR_TIME_OK(attrs)			\
368 	(NFS3_TIME_OK((attrs)->atime.seconds) &&	\
369 	NFS3_TIME_OK((attrs)->mtime.seconds) &&		\
370 	NFS3_TIME_OK((attrs)->ctime.seconds))
371 
372 /* macro to check for overflowed time attribute fields - version 2 */
373 #define	NFS2_FATTR_TIME_OK(attrs)			\
374 	(NFS2_TIME_OK((attrs)->na_atime.tv_sec) &&	\
375 	NFS2_TIME_OK((attrs)->na_mtime.tv_sec) &&	\
376 	NFS2_TIME_OK((attrs)->na_ctime.tv_sec))
377 
378 /* Check that a size3 value is not overflowed */
379 #define	NFS3_SIZE_OK(size)	((size) <= MAXOFFSET_T)
380 
381 #endif /* _KERNEL */
382 
383 /*
384  * Size of an fhandle in bytes
385  */
386 #define	NFS_FHSIZE	32
387 
388 struct nfs_fid {
389 	ushort_t nf_len;
390 	ushort_t nf_pad;
391 	char	nf_data[NFS_FHSIZE];
392 };
393 
394 /*
395  * "Legacy" filehandles use NFS_FHMAXDATA (10) byte fids. Filesystems that
396  * return a larger fid than NFS_FHMAXDATA, such as ZFS's .zfs snapshot
397  * directory, can use up to (((64 - 8) / 2) - 2) bytes for their fid.
398  * This currently holds for both NFSv3 and NFSv4.
399  */
400 #define	NFS_FHMAXDATA		10
401 #define	NFS_FH3MAXDATA		26
402 #define	NFS_FH4MAXDATA		26
403 
404 /*
405  * The original nfs file handle size for version 3 was 32 which was
406  * the same in version 2; now we're making it bigger to to deal with
407  * ZFS snapshot FIDs.
408  *
409  * If the size of fhandle3_t changes or if Version 3 uses some other
410  * filehandle format, this constant may need to change.
411  */
412 
413 #define	NFS3_OLDFHSIZE	32
414 #define	NFS3_MAXFHSIZE	64
415 
416 /*
417  * This is the actual definition of a legacy filehandle.  There is some
418  * dependence on this layout in NFS-related code, particularly in the
419  * user-level lock manager, so be careful about changing it.
420  *
421  * Currently only NFSv2 uses this structure.
422  */
423 
424 typedef struct svcfh {
425 	fsid_t	fh_fsid;			/* filesystem id */
426 	ushort_t fh_len;			/* file number length */
427 	char	fh_data[NFS_FHMAXDATA];		/* and data */
428 	ushort_t fh_xlen;			/* export file number length */
429 	char	fh_xdata[NFS_FHMAXDATA];	/* and data */
430 } fhandle_t;
431 
432 /*
433  * This is the in-memory structure for an NFSv3 extended filehandle.
434  */
435 typedef struct {
436 	fsid_t	_fh3_fsid;			/* filesystem id */
437 	ushort_t _fh3_len;			/* file number length */
438 	char	_fh3_data[NFS_FH3MAXDATA];		/* and data */
439 	ushort_t _fh3_xlen;			/* export file number length */
440 	char	_fh3_xdata[NFS_FH3MAXDATA];	/* and data */
441 } fhandle3_t;
442 
443 /*
444  * This is the in-memory structure for an NFSv4 extended filehandle.
445  */
446 typedef struct {
447 	fsid_t	fhx_fsid;			/* filesystem id */
448 	ushort_t fhx_len;			/* file number length */
449 	char	fhx_data[NFS_FH4MAXDATA];	/* and data */
450 	ushort_t fhx_xlen;			/* export file number length */
451 	char	fhx_xdata[NFS_FH4MAXDATA];	/* and data */
452 } fhandle4_t;
453 
454 /*
455  * Arguments to remote write and writecache
456  */
457 /*
458  * The `over the wire' representation of the first four arguments.
459  */
460 struct otw_nfswriteargs {
461 	fhandle_t	otw_wa_fhandle;
462 	uint32_t	otw_wa_begoff;
463 	uint32_t	otw_wa_offset;
464 	uint32_t	otw_wa_totcount;
465 };
466 
467 struct nfswriteargs {
468 	struct otw_nfswriteargs *wa_args;	/* ptr to the otw arguments */
469 	struct otw_nfswriteargs wa_args_buf;	/* space for otw arguments */
470 	uint32_t	wa_count;
471 	char		*wa_data;	/* data to write (up to NFS_MAXDATA) */
472 	mblk_t		*wa_mblk;	/* pointer to mblks containing data */
473 #ifdef _KERNEL
474 	/* rdma related info */
475 	struct clist	*wa_rlist;
476 	CONN		*wa_conn;
477 #endif /* _KERNEL */
478 };
479 #define	wa_fhandle	wa_args->otw_wa_fhandle
480 #define	wa_begoff	wa_args->otw_wa_begoff
481 #define	wa_offset	wa_args->otw_wa_offset
482 #define	wa_totcount	wa_args->otw_wa_totcount
483 
484 /*
485  * NFS timeval struct using unsigned int as specified in V2 protocol.
486  * tv_sec and tv_usec used to match existing code.
487  */
488 struct nfs2_timeval {
489 	uint32_t tv_sec;
490 	uint32_t tv_usec;
491 };
492 typedef struct nfs2_timeval nfs2_timeval;
493 
494 /*
495  * File attributes
496  */
497 struct nfsfattr {
498 	enum nfsftype	na_type;	/* file type */
499 	uint32_t	na_mode;	/* protection mode bits */
500 	uint32_t	na_nlink;	/* # hard links */
501 	uint32_t	na_uid;		/* owner user id */
502 	uint32_t	na_gid;		/* owner group id */
503 	uint32_t	na_size;	/* file size in bytes */
504 	uint32_t	na_blocksize;	/* preferred block size */
505 	uint32_t	na_rdev;	/* special device # */
506 	uint32_t	na_blocks;	/* Kb of disk used by file */
507 	uint32_t	na_fsid;	/* device # */
508 	uint32_t	na_nodeid;	/* inode # */
509 	struct nfs2_timeval na_atime;	/* time of last access */
510 	struct nfs2_timeval na_mtime;	/* time of last modification */
511 	struct nfs2_timeval na_ctime;	/* time of last change */
512 };
513 
514 #define	n2v_type(x)	(NA_ISFIFO(x) ? VFIFO : nf_to_vt[(x)->na_type])
515 #define	n2v_rdev(x)	(NA_ISFIFO(x) ? 0 : (x)->na_rdev)
516 
517 /*
518  * Arguments to remote read
519  */
520 struct nfsreadargs {
521 	fhandle_t	ra_fhandle;	/* handle for file */
522 	uint32_t	ra_offset;	/* byte offset in file */
523 	uint32_t	ra_count;	/* immediate read count */
524 	uint32_t	ra_totcount;	/* total read cnt (from this offset) */
525 #ifdef _KERNEL
526 	/* used in rdma transports */
527 	caddr_t		ra_data;	/* destination for read data */
528 	struct clist	*ra_wlist;
529 	CONN		*ra_conn;
530 #endif
531 };
532 
533 /*
534  * Status OK portion of remote read reply
535  */
536 struct nfsrrok {
537 	struct nfsfattr	rrok_attr;	/* attributes, need for pagin */
538 	uint32_t	rrok_count;	/* bytes of data */
539 	char		*rrok_data;	/* data (up to NFS_MAXDATA bytes) */
540 	uint_t		rrok_bufsize;	/* size of kmem_alloc'd buffer */
541 	mblk_t		*rrok_mp;	/* mblk_t contains data for reply */
542 #ifdef _KERNEL
543 	uint_t		rrok_wlist_len;
544 	struct clist    *rrok_wlist;
545 #endif
546 };
547 
548 /*
549  * Reply from remote read
550  */
551 struct nfsrdresult {
552 	nfsstat	rr_status;			/* status of read */
553 	union {
554 		struct nfsrrok	rr_ok_u;	/* attributes, need for pagin */
555 	} rr_u;
556 };
557 #define	rr_ok		rr_u.rr_ok_u
558 #define	rr_attr		rr_u.rr_ok_u.rrok_attr
559 #define	rr_count	rr_u.rr_ok_u.rrok_count
560 #define	rr_bufsize	rr_u.rr_ok_u.rrok_bufsize
561 #define	rr_data		rr_u.rr_ok_u.rrok_data
562 #define	rr_mp		rr_u.rr_ok_u.rrok_mp
563 
564 /*
565  * File attributes which can be set
566  */
567 struct nfssattr {
568 	uint32_t	sa_mode;	/* protection mode bits */
569 	uint32_t	sa_uid;		/* owner user id */
570 	uint32_t	sa_gid;		/* owner group id */
571 	uint32_t	sa_size;	/* file size in bytes */
572 	struct nfs2_timeval sa_atime;	/* time of last access */
573 	struct nfs2_timeval sa_mtime;	/* time of last modification */
574 };
575 
576 
577 /*
578  * Reply status with file attributes
579  */
580 struct nfsattrstat {
581 	nfsstat	ns_status;			/* reply status */
582 	union {
583 		struct nfsfattr ns_attr_u;	/* NFS_OK: file attributes */
584 	} ns_u;
585 };
586 #define	ns_attr	ns_u.ns_attr_u
587 
588 
589 /*
590  * NFS_OK part of read sym link reply union
591  */
592 struct nfssrok {
593 	uint32_t srok_count;	/* size of string */
594 	char	*srok_data;	/* string (up to NFS_MAXPATHLEN bytes) */
595 };
596 
597 /*
598  * Result of reading symbolic link
599  */
600 struct nfsrdlnres {
601 	nfsstat	rl_status;			/* status of symlink read */
602 	union {
603 		struct nfssrok	rl_srok_u;	/* name of linked to */
604 	} rl_u;
605 };
606 #define	rl_srok		rl_u.rl_srok_u
607 #define	rl_count	rl_u.rl_srok_u.srok_count
608 #define	rl_data		rl_u.rl_srok_u.srok_data
609 
610 
611 /*
612  * Arguments to readdir
613  */
614 struct nfsrddirargs {
615 	fhandle_t rda_fh;	/* directory handle */
616 	uint32_t rda_offset;	/* offset in directory (opaque) */
617 	uint32_t rda_count;	/* number of directory bytes to read */
618 };
619 
620 /*
621  * NFS_OK part of readdir result
622  */
623 struct nfsrdok {
624 	uint32_t rdok_offset;		/* next offset (opaque) */
625 	uint32_t rdok_size;		/* size in bytes of entries */
626 	bool_t	rdok_eof;		/* true if last entry is in result */
627 	struct dirent64 *rdok_entries;	/* variable number of entries */
628 };
629 
630 /*
631  * Readdir result
632  */
633 struct nfsrddirres {
634 	nfsstat	rd_status;
635 	uint_t		rd_bufsize;	/* client request size (not xdr'ed) */
636 	union {
637 		struct nfsrdok rd_rdok_u;
638 	} rd_u;
639 };
640 #define	rd_rdok		rd_u.rd_rdok_u
641 #define	rd_offset	rd_u.rd_rdok_u.rdok_offset
642 #define	rd_size		rd_u.rd_rdok_u.rdok_size
643 #define	rd_eof		rd_u.rd_rdok_u.rdok_eof
644 #define	rd_entries	rd_u.rd_rdok_u.rdok_entries
645 
646 
647 /*
648  * Arguments for directory operations
649  */
650 struct nfsdiropargs {
651 	fhandle_t	*da_fhandle;	/* pointer to directory file handle */
652 	char		*da_name;	/* name (up to NFS_MAXNAMLEN bytes) */
653 	fhandle_t	da_fhandle_buf;	/* directory file handle */
654 	int		da_flags;	/* flags, see below */
655 };
656 #define	DA_FREENAME	1
657 
658 /*
659  * NFS_OK part of directory operation result
660  */
661 struct  nfsdrok {
662 	fhandle_t	drok_fhandle;	/* result file handle */
663 	struct nfsfattr	drok_attr;	/* result file attributes */
664 };
665 
666 /*
667  * Results from directory operation
668  */
669 struct  nfsdiropres {
670 	nfsstat	dr_status;			/* result status */
671 	union {
672 		struct  nfsdrok	dr_drok_u;	/* NFS_OK result */
673 	} dr_u;
674 };
675 #define	dr_drok		dr_u.dr_drok_u
676 #define	dr_fhandle	dr_u.dr_drok_u.drok_fhandle
677 #define	dr_attr		dr_u.dr_drok_u.drok_attr
678 
679 /*
680  * arguments to setattr
681  */
682 struct nfssaargs {
683 	fhandle_t	saa_fh;		/* fhandle of file to be set */
684 	struct nfssattr	saa_sa;		/* new attributes */
685 };
686 
687 /*
688  * arguments to create and mkdir
689  */
690 struct nfscreatargs {
691 	struct nfsdiropargs	ca_da;	/* file name to create and parent dir */
692 	struct nfssattr		*ca_sa;	/* initial attributes */
693 	struct nfssattr		ca_sa_buf;	/* space to store attributes */
694 };
695 
696 /*
697  * arguments to link
698  */
699 struct nfslinkargs {
700 	fhandle_t		*la_from;	/* old file */
701 	fhandle_t		la_from_buf;	/* old file */
702 	struct nfsdiropargs	la_to;		/* new file and parent dir */
703 };
704 
705 /*
706  * arguments to rename
707  */
708 struct nfsrnmargs {
709 	struct nfsdiropargs rna_from;	/* old file and parent dir */
710 	struct nfsdiropargs rna_to;	/* new file and parent dir */
711 };
712 
713 /*
714  * arguments to symlink
715  */
716 struct nfsslargs {
717 	struct nfsdiropargs	sla_from;	/* old file and parent dir */
718 	char			*sla_tnm;	/* new name */
719 	int			sla_tnm_flags;	/* flags for name */
720 	struct nfssattr		*sla_sa;	/* attributes */
721 	struct nfssattr		sla_sa_buf;	/* attributes buffer */
722 };
723 #define	SLA_FREETNM	1
724 
725 /*
726  * NFS_OK part of statfs operation
727  */
728 struct nfsstatfsok {
729 	uint32_t fsok_tsize;	/* preferred transfer size in bytes */
730 	uint32_t fsok_bsize;	/* fundamental file system block size */
731 	uint32_t fsok_blocks;	/* total blocks in file system */
732 	uint32_t fsok_bfree;	/* free blocks in fs */
733 	uint32_t fsok_bavail;	/* free blocks avail to non-superuser */
734 };
735 
736 /*
737  * Results of statfs operation
738  */
739 struct nfsstatfs {
740 	nfsstat	fs_status;			/* result status */
741 	union {
742 		struct	nfsstatfsok fs_fsok_u;	/* NFS_OK result */
743 	} fs_u;
744 };
745 #define	fs_fsok		fs_u.fs_fsok_u
746 #define	fs_tsize	fs_u.fs_fsok_u.fsok_tsize
747 #define	fs_bsize	fs_u.fs_fsok_u.fsok_bsize
748 #define	fs_blocks	fs_u.fs_fsok_u.fsok_blocks
749 #define	fs_bfree	fs_u.fs_fsok_u.fsok_bfree
750 #define	fs_bavail	fs_u.fs_fsok_u.fsok_bavail
751 
752 #ifdef _KERNEL
753 /*
754  * XDR routines for handling structures defined above
755  */
756 extern bool_t	xdr_attrstat(XDR *, struct nfsattrstat *);
757 extern bool_t	xdr_fastattrstat(XDR *, struct nfsattrstat *);
758 extern bool_t	xdr_creatargs(XDR *, struct nfscreatargs *);
759 extern bool_t	xdr_diropargs(XDR *, struct nfsdiropargs *);
760 extern bool_t	xdr_diropres(XDR *, struct nfsdiropres *);
761 extern bool_t	xdr_fastdiropres(XDR *, struct nfsdiropres *);
762 extern bool_t	xdr_drok(XDR *, struct nfsdrok *);
763 #ifdef _LITTLE_ENDIAN
764 extern bool_t	xdr_fastdrok(XDR *, struct nfsdrok *);
765 extern bool_t	xdr_fastfattr(XDR *, struct nfsfattr *);
766 #endif
767 extern bool_t	xdr_fattr(XDR *, struct nfsfattr *);
768 extern bool_t	xdr_fhandle(XDR *, fhandle_t *);
769 extern bool_t	xdr_fastfhandle(XDR *, fhandle_t **);
770 extern bool_t	xdr_linkargs(XDR *, struct nfslinkargs *);
771 extern bool_t	xdr_rddirargs(XDR *, struct nfsrddirargs *);
772 extern bool_t	xdr_putrddirres(XDR *, struct nfsrddirres *);
773 extern bool_t	xdr_getrddirres(XDR *, struct nfsrddirres *);
774 extern bool_t	xdr_rdlnres(XDR *, struct nfsrdlnres *);
775 extern bool_t	xdr_rdresult(XDR *, struct nfsrdresult *);
776 extern bool_t	xdr_readargs(XDR *, struct nfsreadargs *);
777 extern bool_t	xdr_readlink(XDR *, fhandle_t *);
778 extern bool_t	xdr_rnmargs(XDR *, struct nfsrnmargs *);
779 extern bool_t	xdr_rrok(XDR *, struct nfsrrok *);
780 extern bool_t	xdr_saargs(XDR *, struct nfssaargs *);
781 extern bool_t	xdr_sattr(XDR *, struct nfssattr *);
782 extern bool_t	xdr_slargs(XDR *, struct nfsslargs *);
783 extern bool_t	xdr_srok(XDR *, struct nfssrok *);
784 extern bool_t	xdr_nfs2_timeval(XDR *, struct nfs2_timeval *);
785 extern bool_t	xdr_writeargs(XDR *, struct nfswriteargs *);
786 extern bool_t	xdr_fsok(XDR *, struct nfsstatfsok *);
787 #ifdef _LITTLE_ENDIAN
788 extern bool_t	xdr_fastfsok(XDR *, struct nfsstatfsok *);
789 extern bool_t	xdr_fastenum(XDR *, enum_t *);
790 #endif
791 extern bool_t	xdr_statfs(XDR *, struct nfsstatfs *);
792 extern bool_t	xdr_faststatfs(XDR *, struct nfsstatfs *);
793 #endif
794 
795 /*
796  * Remote file service routines
797  */
798 #define	RFS_NULL	0
799 #define	RFS_GETATTR	1
800 #define	RFS_SETATTR	2
801 #define	RFS_ROOT	3
802 #define	RFS_LOOKUP	4
803 #define	RFS_READLINK	5
804 #define	RFS_READ	6
805 #define	RFS_WRITECACHE	7
806 #define	RFS_WRITE	8
807 #define	RFS_CREATE	9
808 #define	RFS_REMOVE	10
809 #define	RFS_RENAME	11
810 #define	RFS_LINK	12
811 #define	RFS_SYMLINK	13
812 #define	RFS_MKDIR	14
813 #define	RFS_RMDIR	15
814 #define	RFS_READDIR	16
815 #define	RFS_STATFS	17
816 #define	RFS_NPROC	18
817 
818 #ifdef _KERNEL
819 /*
820  * The NFS Version 2 service procedures
821  */
822 struct exportinfo;	/* defined in nfs/export.h */
823 struct servinfo;	/* defined in nfs/nfs_clnt.h */
824 struct mntinfo;		/* defined in nfs/nfs_clnt.h */
825 
826 extern void rfs_getattr(fhandle_t *, struct nfsattrstat *,
827 			struct exportinfo *, struct svc_req *, cred_t *);
828 extern void *rfs_getattr_getfh(fhandle_t *);
829 extern void rfs_setattr(struct nfssaargs *, struct nfsattrstat *,
830 			struct exportinfo *, struct svc_req *, cred_t *);
831 extern void *rfs_setattr_getfh(struct nfssaargs *);
832 extern void rfs_lookup(struct nfsdiropargs *, struct nfsdiropres *,
833 			struct exportinfo *, struct svc_req *, cred_t *);
834 extern void *rfs_lookup_getfh(struct nfsdiropargs *);
835 extern void rfs_readlink(fhandle_t *, struct nfsrdlnres *,
836 			struct exportinfo *, struct svc_req *, cred_t *);
837 extern void *rfs_readlink_getfh(fhandle_t *);
838 extern void rfs_rlfree(struct nfsrdlnres *);
839 extern void rfs_read(struct nfsreadargs *, struct nfsrdresult *,
840 			struct exportinfo *, struct svc_req *, cred_t *);
841 extern void *rfs_read_getfh(struct nfsreadargs *);
842 extern void rfs_rdfree(struct nfsrdresult *);
843 extern void rfs_write_sync(struct nfswriteargs *, struct nfsattrstat *,
844 			struct exportinfo *, struct svc_req *, cred_t *);
845 extern void rfs_write(struct nfswriteargs *, struct nfsattrstat *,
846 			struct exportinfo *, struct svc_req *, cred_t *);
847 extern void *rfs_write_getfh(struct nfswriteargs *);
848 extern void rfs_create(struct nfscreatargs *, struct nfsdiropres *,
849 			struct exportinfo *, struct svc_req *, cred_t *);
850 extern void *rfs_create_getfh(struct nfscreatargs *);
851 extern void rfs_remove(struct nfsdiropargs *, enum nfsstat *,
852 			struct exportinfo *, struct svc_req *, cred_t *);
853 extern void *rfs_remove_getfh(struct nfsdiropargs *);
854 extern void rfs_rename(struct nfsrnmargs *, enum nfsstat *,
855 			struct exportinfo *, struct svc_req *, cred_t *);
856 extern void *rfs_rename_getfh(struct nfsrnmargs *);
857 extern void rfs_link(struct nfslinkargs *, enum nfsstat *,
858 			struct exportinfo *, struct svc_req *, cred_t *);
859 extern void *rfs_link_getfh(struct nfslinkargs *);
860 extern void rfs_symlink(struct nfsslargs *, enum nfsstat *,
861 			struct exportinfo *, struct svc_req *, cred_t *);
862 extern void *rfs_symlink_getfh(struct nfsslargs *);
863 extern void rfs_mkdir(struct nfscreatargs *, struct nfsdiropres *,
864 			struct exportinfo *, struct svc_req *, cred_t *);
865 extern void *rfs_mkdir_getfh(struct nfscreatargs *);
866 extern void rfs_rmdir(struct nfsdiropargs *, enum nfsstat *,
867 			struct exportinfo *, struct svc_req *, cred_t *);
868 extern void *rfs_rmdir_getfh(struct nfsdiropargs *);
869 extern void rfs_readdir(struct nfsrddirargs *, struct nfsrddirres *,
870 			struct exportinfo *, struct svc_req *, cred_t *);
871 extern void *rfs_readdir_getfh(struct nfsrddirargs *);
872 extern void rfs_rddirfree(struct nfsrddirres *);
873 extern void rfs_statfs(fhandle_t *, struct nfsstatfs *,
874 			struct exportinfo *, struct svc_req *, cred_t *);
875 extern void *rfs_statfs_getfh(fhandle_t *);
876 extern void rfs_srvrinit(void);
877 extern void rfs_srvrfini(void);
878 
879 /*
880  * flags to define path types during Multi Component Lookups
881  * using the public filehandle
882  */
883 #define	URLPATH		0x01	/* Universal Resource Locator path */
884 #define	NATIVEPATH	0x02	/* Native path, i.e., via mount protocol */
885 #define	SECURITY_QUERY	0x04	/* Security query */
886 
887 /* index for svstat_ptr */
888 enum nfs_svccounts {NFS_CALLS, NFS_BADCALLS, NFS_REFERRALS, NFS_REFERLINKS};
889 
890 /*	function defs for NFS kernel */
891 extern int	nfs_waitfor_purge_complete(vnode_t *);
892 extern int	nfs_validate_caches(vnode_t *, cred_t *);
893 extern void	nfs_purge_caches(vnode_t *, int, cred_t *);
894 extern void	nfs_purge_rddir_cache(vnode_t *);
895 extern void	nfs_attrcache(vnode_t *, struct nfsfattr *, hrtime_t);
896 extern int	nfs_cache_fattr(vnode_t *, struct nfsfattr *, vattr_t *,
897 				hrtime_t, cred_t *);
898 extern void	nfs_attr_cache(vnode_t *, vattr_t *, hrtime_t, cred_t *);
899 extern void	nfs_attrcache_va(vnode_t *, struct vattr *);
900 extern int	nfs_getattr_otw(vnode_t *, struct vattr *, cred_t *);
901 extern int	nfsgetattr(vnode_t *, struct vattr *, cred_t *);
902 extern int	nattr_to_vattr(vnode_t *, struct nfsfattr *, struct vattr *);
903 extern void	nfs_async_manager(struct vfs *);
904 extern void	nfs_async_manager_stop(struct vfs *);
905 extern void	nfs_async_stop(struct vfs *);
906 extern int	nfs_async_stop_sig(struct vfs *);
907 extern int	nfs_clntinit(void);
908 extern void	nfs_clntfini(void);
909 extern int	nfstsize(void);
910 extern int	nfs_srvinit(void);
911 extern void	nfs_srvfini(void);
912 extern int	vattr_to_sattr(struct vattr *, struct nfssattr *);
913 extern void	setdiropargs(struct nfsdiropargs *, char *, vnode_t *);
914 extern int	setdirgid(vnode_t *, gid_t *, cred_t *);
915 extern int	setdirmode(vnode_t *, mode_t *, cred_t *);
916 extern int	newnum(void);
917 extern char	*newname(void);
918 extern int	nfs_subrinit(void);
919 extern void	nfs_subrfini(void);
920 extern enum nfsstat puterrno(int);
921 extern int	geterrno(enum nfsstat);
922 extern int	nfsinit(int, char *);
923 extern void	nfsfini(void);
924 extern int	nfs_vfsinit(void);
925 extern void	nfs_vfsfini(void);
926 extern int	nfs_dump(vnode_t *, caddr_t, offset_t, offset_t,
927     caller_context_t *);
928 extern void	nfs_perror(int error, char *fmt, ...);
929 extern void	nfs_cmn_err(int error, int level, char *fmt, ...);
930 extern int	nfs_addcllock(vnode_t *vp, struct flock64 *bfp);
931 extern void	nfs_rmcllock(vnode_t *vp, struct flock64 *bfp);
932 extern void	nfs_lockrelease(vnode_t *vp, int flag,
933 		    offset_t offset, cred_t *credp);
934 extern int	vattr_to_nattr(struct vattr *, struct nfsfattr *);
935 extern int	mount_root(char *, char *, int, struct nfs_args *, int *);
936 extern void	nfs_lockcompletion(vnode_t *vp, int cmd);
937 extern void	nfs_add_locking_id(vnode_t *, pid_t, int, char *, int);
938 extern void	nfs3copyfh(caddr_t, vnode_t *);
939 extern void	nfscopyfh(caddr_t, vnode_t *);
940 extern int	nfs3lookup(vnode_t *, char *, vnode_t **, struct pathname *,
941 				int, vnode_t *, cred_t *, int);
942 extern int	nfslookup(vnode_t *, char *, vnode_t **, struct pathname *,
943 				int, vnode_t *, cred_t *, int);
944 extern void	sv_free(struct servinfo *);
945 extern int	nfsauth_access(struct exportinfo *exi, struct svc_req *req);
946 extern void	nfsauth_init();
947 extern void	nfsauth_fini();
948 extern int	nfs_setopts(vnode_t *vp, model_t model, struct nfs_args *args);
949 extern int	nfs_mount_label_policy(vfs_t *vfsp, struct netbuf *addr,
950 		    struct knetconfig *knconf, cred_t *cr);
951 extern boolean_t	nfs_has_ctty(void);
952 extern void	nfs_srv_stop_all(void);
953 extern void	nfs_srv_quiesce_all(void);
954 extern void	(*nfs_srv_quiesce_func)(void);
955 extern int	rfs4_dss_setpaths(char *, size_t);
956 extern int	(*nfs_srv_dss_func)(char *, size_t);
957 extern int	nfs_setmod_check(page_t *pp);
958 extern time_t	rfs4_lease_time;
959 extern time_t	rfs4_grace_period;
960 extern nvlist_t	*rfs4_dss_paths, *rfs4_dss_oldpaths;
961 
962 
963 extern kstat_named_t	*global_svstat_ptr[];
964 
965 extern krwlock_t	rroklock;
966 extern vtype_t		nf_to_vt[];
967 extern kstat_named_t	*rfsproccnt_v2_ptr;
968 extern kmutex_t		nfs_minor_lock;
969 extern int		nfs_major;
970 extern int		nfs_minor;
971 extern vfsops_t		*nfs_vfsops;
972 extern struct vnodeops	*nfs_vnodeops;
973 extern const struct fs_operation_def nfs_vnodeops_template[];
974 extern int		nfsfstyp;
975 
976 /*
977  * Per-zone stats as consumed by nfsstat(1m)
978  */
979 struct nfs_version_stats {
980 	kstat_named_t	*aclreqcnt_ptr;		/* nfs_acl:0:aclreqcnt_v? */
981 	kstat_named_t	*aclproccnt_ptr;	/* nfs_acl:0:aclproccnt_v? */
982 	kstat_named_t	*rfsreqcnt_ptr;		/* nfs:0:rfsreqcnt_v? */
983 	kstat_named_t	*rfsproccnt_ptr;	/* nfs:0:rfsproccnt_v? */
984 };
985 
986 /*
987  * A bit of asymmetry: nfs:0:nfs_client isn't part of this structure.
988  */
989 struct nfs_stats {
990 	kstat_named_t		*nfs_stats_svstat_ptr[NFS_VERSMAX + 1];
991 	struct nfs_version_stats	nfs_stats_v2;
992 	struct nfs_version_stats	nfs_stats_v3;
993 	struct nfs_version_stats	nfs_stats_v4;
994 };
995 
996 /*
997  * Key used to retrieve counters.
998  */
999 extern zone_key_t nfsstat_zone_key;
1000 
1001 /*
1002  * Zone callback functions.
1003  */
1004 extern void *nfsstat_zone_init(zoneid_t);
1005 extern void nfsstat_zone_fini(zoneid_t, void *);
1006 
1007 #endif	/* _KERNEL */
1008 
1009 /*
1010  * Version 3 declarations and definitions.
1011  */
1012 
1013 #define	NFS3_FHSIZE 64
1014 #define	NFS3_COOKIEVERFSIZE 8
1015 #define	NFS3_CREATEVERFSIZE 8
1016 #define	NFS3_WRITEVERFSIZE 8
1017 
1018 typedef char *filename3;
1019 
1020 typedef char *nfspath3;
1021 
1022 #define	nfs3nametoolong	((char *)-1)
1023 
1024 typedef uint64 fileid3;
1025 
1026 typedef uint64 cookie3;
1027 
1028 typedef uint32 uid3;
1029 
1030 typedef uint32 gid3;
1031 
1032 typedef uint64 size3;
1033 
1034 typedef uint64 offset3;
1035 
1036 typedef uint32 mode3;
1037 
1038 typedef uint32 count3;
1039 
1040 /*
1041  * These three are really opaque arrays, but we treat them as
1042  * uint64 for efficiency sake
1043  */
1044 typedef uint64 cookieverf3;
1045 
1046 typedef uint64 createverf3;
1047 
1048 typedef uint64 writeverf3;
1049 
1050 typedef struct nfs_fh3 {
1051 	uint_t fh3_length;
1052 	union nfs_fh3_u {
1053 		struct nfs_fh3_i {
1054 			fhandle3_t fh3_i;
1055 		} nfs_fh3_i;
1056 		char data[NFS3_FHSIZE];
1057 	} fh3_u;
1058 	uint_t fh3_flags;
1059 } nfs_fh3;
1060 #define	fh3_fsid	fh3_u.nfs_fh3_i.fh3_i._fh3_fsid
1061 #define	fh3_len		fh3_u.nfs_fh3_i.fh3_i._fh3_len
1062 #define	fh3_data	fh3_u.nfs_fh3_i.fh3_i._fh3_data
1063 #define	fh3_xlen	fh3_u.nfs_fh3_i.fh3_i._fh3_xlen
1064 #define	fh3_xdata	fh3_u.nfs_fh3_i.fh3_i._fh3_xdata
1065 #define	FH3TOFIDP(fh)	((fid_t *)&((fh)->fh3_len))
1066 #define	FH3TOXFIDP(fh)	((fid_t *)&((fh)->fh3_xlen))
1067 
1068 /*
1069  * nfs_fh3.fh3_flags values
1070  */
1071 #define	FH_WEBNFS	0x1	/* fh is WebNFS overloaded - see makefh3_ol() */
1072 
1073 /*
1074  * Two elements were added to the
1075  * diropargs3 structure for performance (xdr-inlining).
1076  * They are not included as part of the args
1077  * that are encoded or decoded:
1078  * dirp - ptr to the nfs_fh3
1079  * flag indicating when to free the name that was
1080  * allocated during decode.
1081  */
1082 struct diropargs3 {
1083 	nfs_fh3 *dirp;
1084 	nfs_fh3 dir;
1085 	filename3 name;
1086 	int flags;
1087 };
1088 typedef struct diropargs3 diropargs3;
1089 
1090 struct nfstime3 {
1091 	uint32 seconds;
1092 	uint32 nseconds;
1093 };
1094 typedef struct nfstime3 nfstime3;
1095 
1096 struct specdata3 {
1097 	uint32 specdata1;
1098 	uint32 specdata2;
1099 };
1100 typedef struct specdata3 specdata3;
1101 
1102 enum nfsstat3 {
1103 	NFS3_OK = 0,
1104 	NFS3ERR_PERM = 1,
1105 	NFS3ERR_NOENT = 2,
1106 	NFS3ERR_IO = 5,
1107 	NFS3ERR_NXIO = 6,
1108 	NFS3ERR_ACCES = 13,
1109 	NFS3ERR_EXIST = 17,
1110 	NFS3ERR_XDEV = 18,
1111 	NFS3ERR_NODEV = 19,
1112 	NFS3ERR_NOTDIR = 20,
1113 	NFS3ERR_ISDIR = 21,
1114 	NFS3ERR_INVAL = 22,
1115 	NFS3ERR_FBIG = 27,
1116 	NFS3ERR_NOSPC = 28,
1117 	NFS3ERR_ROFS = 30,
1118 	NFS3ERR_MLINK = 31,
1119 	NFS3ERR_NAMETOOLONG = 63,
1120 	NFS3ERR_NOTEMPTY = 66,
1121 	NFS3ERR_DQUOT = 69,
1122 	NFS3ERR_STALE = 70,
1123 	NFS3ERR_REMOTE = 71,
1124 	NFS3ERR_BADHANDLE = 10001,
1125 	NFS3ERR_NOT_SYNC = 10002,
1126 	NFS3ERR_BAD_COOKIE = 10003,
1127 	NFS3ERR_NOTSUPP = 10004,
1128 	NFS3ERR_TOOSMALL = 10005,
1129 	NFS3ERR_SERVERFAULT = 10006,
1130 	NFS3ERR_BADTYPE = 10007,
1131 	NFS3ERR_JUKEBOX = 10008
1132 };
1133 typedef enum nfsstat3 nfsstat3;
1134 
1135 enum ftype3 {
1136 	NF3REG = 1,
1137 	NF3DIR = 2,
1138 	NF3BLK = 3,
1139 	NF3CHR = 4,
1140 	NF3LNK = 5,
1141 	NF3SOCK = 6,
1142 	NF3FIFO = 7
1143 };
1144 typedef enum ftype3 ftype3;
1145 
1146 struct fattr3 {
1147 	ftype3 type;
1148 	mode3 mode;
1149 	uint32 nlink;
1150 	uid3 uid;
1151 	gid3 gid;
1152 	size3 size;
1153 	size3 used;
1154 	specdata3 rdev;
1155 	uint64 fsid;
1156 	fileid3 fileid;
1157 	nfstime3 atime;
1158 	nfstime3 mtime;
1159 	nfstime3 ctime;
1160 };
1161 typedef struct fattr3 fattr3;
1162 
1163 #define	NFS3_SIZEOF_FATTR3	(21)
1164 
1165 #ifdef _KERNEL
1166 struct fattr3_res {
1167 	nfsstat3 status;
1168 	vattr_t *vap;
1169 	vnode_t *vp;
1170 };
1171 typedef struct fattr3_res fattr3_res;
1172 #endif /* _KERNEL */
1173 
1174 struct post_op_attr {
1175 	bool_t attributes;
1176 	fattr3 attr;
1177 };
1178 typedef struct post_op_attr post_op_attr;
1179 
1180 #ifdef _KERNEL
1181 struct post_op_vattr {
1182 	bool_t		attributes;
1183 	fattr3_res	fres;
1184 };
1185 typedef struct post_op_vattr post_op_vattr;
1186 #endif /* _KERNEL */
1187 
1188 struct wcc_attr {
1189 	size3 size;
1190 	nfstime3 mtime;
1191 	nfstime3 ctime;
1192 };
1193 typedef struct wcc_attr wcc_attr;
1194 
1195 struct pre_op_attr {
1196 	bool_t attributes;
1197 	wcc_attr attr;
1198 };
1199 typedef struct pre_op_attr pre_op_attr;
1200 
1201 struct wcc_data {
1202 	pre_op_attr before;
1203 	post_op_attr after;
1204 };
1205 typedef struct wcc_data wcc_data;
1206 
1207 struct post_op_fh3 {
1208 	bool_t handle_follows;
1209 	nfs_fh3 handle;
1210 };
1211 typedef struct post_op_fh3 post_op_fh3;
1212 
1213 enum time_how {
1214 	DONT_CHANGE = 0,
1215 	SET_TO_SERVER_TIME = 1,
1216 	SET_TO_CLIENT_TIME = 2
1217 };
1218 typedef enum time_how time_how;
1219 
1220 struct set_mode3 {
1221 	bool_t set_it;
1222 	mode3 mode;
1223 };
1224 typedef struct set_mode3 set_mode3;
1225 
1226 struct set_uid3 {
1227 	bool_t set_it;
1228 	uid3 uid;
1229 };
1230 typedef struct set_uid3 set_uid3;
1231 
1232 struct set_gid3 {
1233 	bool_t set_it;
1234 	gid3 gid;
1235 };
1236 typedef struct set_gid3 set_gid3;
1237 
1238 struct set_size3 {
1239 	bool_t set_it;
1240 	size3 size;
1241 };
1242 typedef struct set_size3 set_size3;
1243 
1244 struct set_atime {
1245 	time_how set_it;
1246 	nfstime3 atime;
1247 };
1248 typedef struct set_atime set_atime;
1249 
1250 struct set_mtime {
1251 	time_how set_it;
1252 	nfstime3 mtime;
1253 };
1254 typedef struct set_mtime set_mtime;
1255 
1256 struct sattr3 {
1257 	set_mode3 mode;
1258 	set_uid3 uid;
1259 	set_gid3 gid;
1260 	set_size3 size;
1261 	set_atime atime;
1262 	set_mtime mtime;
1263 };
1264 typedef struct sattr3 sattr3;
1265 
1266 /*
1267  * A couple of defines to make resok and resfail look like the
1268  * correct things in a response type independent manner.
1269  */
1270 #define	resok	res_u.ok
1271 #define	resfail	res_u.fail
1272 
1273 struct GETATTR3args {
1274 	nfs_fh3 object;
1275 };
1276 typedef struct GETATTR3args GETATTR3args;
1277 
1278 struct GETATTR3resok {
1279 	fattr3 obj_attributes;
1280 };
1281 typedef struct GETATTR3resok GETATTR3resok;
1282 
1283 struct GETATTR3res {
1284 	nfsstat3 status;
1285 	union {
1286 		GETATTR3resok ok;
1287 	} res_u;
1288 };
1289 typedef struct GETATTR3res GETATTR3res;
1290 
1291 #ifdef _KERNEL
1292 struct GETATTR3vres {
1293 	nfsstat3 status;
1294 	fattr3_res fres;
1295 };
1296 typedef struct GETATTR3vres GETATTR3vres;
1297 #endif /* _KERNEL */
1298 
1299 struct sattrguard3 {
1300 	bool_t check;
1301 	nfstime3 obj_ctime;
1302 };
1303 typedef struct sattrguard3 sattrguard3;
1304 
1305 struct SETATTR3args {
1306 	nfs_fh3 object;
1307 	sattr3 new_attributes;
1308 	sattrguard3 guard;
1309 };
1310 typedef struct SETATTR3args SETATTR3args;
1311 
1312 struct SETATTR3resok {
1313 	wcc_data obj_wcc;
1314 };
1315 typedef struct SETATTR3resok SETATTR3resok;
1316 
1317 struct SETATTR3resfail {
1318 	wcc_data obj_wcc;
1319 };
1320 typedef struct SETATTR3resfail SETATTR3resfail;
1321 
1322 struct SETATTR3res {
1323 	nfsstat3 status;
1324 	union {
1325 		SETATTR3resok ok;
1326 		SETATTR3resfail fail;
1327 	} res_u;
1328 };
1329 typedef struct SETATTR3res SETATTR3res;
1330 
1331 struct LOOKUP3args {
1332 	diropargs3 what;
1333 };
1334 typedef struct LOOKUP3args LOOKUP3args;
1335 
1336 struct LOOKUP3resok {
1337 	nfs_fh3 object;
1338 	post_op_attr obj_attributes;
1339 	post_op_attr dir_attributes;
1340 };
1341 typedef struct LOOKUP3resok LOOKUP3resok;
1342 
1343 struct LOOKUP3resfail {
1344 	post_op_attr dir_attributes;
1345 };
1346 typedef struct LOOKUP3resfail LOOKUP3resfail;
1347 
1348 struct LOOKUP3res {
1349 	nfsstat3 status;
1350 	union {
1351 		LOOKUP3resok ok;
1352 		LOOKUP3resfail fail;
1353 	} res_u;
1354 };
1355 typedef struct LOOKUP3res LOOKUP3res;
1356 
1357 #ifdef _KERNEL
1358 struct LOOKUP3vres {
1359 	nfsstat3 status;
1360 	nfs_fh3 object;
1361 	post_op_vattr dir_attributes;
1362 	post_op_vattr obj_attributes;
1363 };
1364 typedef struct LOOKUP3vres LOOKUP3vres;
1365 #endif /* _KERNEL */
1366 
1367 struct ACCESS3args {
1368 	nfs_fh3 object;
1369 	uint32 access;
1370 };
1371 typedef struct ACCESS3args ACCESS3args;
1372 #define	ACCESS3_READ 0x1
1373 #define	ACCESS3_LOOKUP 0x2
1374 #define	ACCESS3_MODIFY 0x4
1375 #define	ACCESS3_EXTEND 0x8
1376 #define	ACCESS3_DELETE 0x10
1377 #define	ACCESS3_EXECUTE 0x20
1378 
1379 struct ACCESS3resok {
1380 	post_op_attr obj_attributes;
1381 	uint32 access;
1382 };
1383 typedef struct ACCESS3resok ACCESS3resok;
1384 
1385 struct ACCESS3resfail {
1386 	post_op_attr obj_attributes;
1387 };
1388 typedef struct ACCESS3resfail ACCESS3resfail;
1389 
1390 struct ACCESS3res {
1391 	nfsstat3 status;
1392 	union {
1393 		ACCESS3resok ok;
1394 		ACCESS3resfail fail;
1395 	} res_u;
1396 };
1397 typedef struct ACCESS3res ACCESS3res;
1398 
1399 struct READLINK3args {
1400 	nfs_fh3 symlink;
1401 };
1402 typedef struct READLINK3args READLINK3args;
1403 
1404 struct READLINK3resok {
1405 	post_op_attr symlink_attributes;
1406 	nfspath3 data;
1407 };
1408 typedef struct READLINK3resok READLINK3resok;
1409 
1410 struct READLINK3resfail {
1411 	post_op_attr symlink_attributes;
1412 };
1413 typedef struct READLINK3resfail READLINK3resfail;
1414 
1415 struct READLINK3res {
1416 	nfsstat3 status;
1417 	union {
1418 		READLINK3resok ok;
1419 		READLINK3resfail fail;
1420 	} res_u;
1421 };
1422 typedef struct READLINK3res READLINK3res;
1423 
1424 struct READ3args {
1425 	nfs_fh3 file;
1426 	offset3 offset;
1427 	count3 count;
1428 #ifdef _KERNEL
1429 	/* for read using rdma */
1430 	char *res_data_val_alt;
1431 	struct uio *res_uiop;
1432 	struct clist *wlist;
1433 	CONN *conn;
1434 #endif
1435 };
1436 typedef struct READ3args READ3args;
1437 
1438 struct READ3resok {
1439 	post_op_attr file_attributes;
1440 	count3 count;
1441 	bool_t eof;
1442 	struct {
1443 		uint_t data_len;
1444 		char *data_val;
1445 		mblk_t *mp;
1446 	} data;
1447 	uint_t size;
1448 #ifdef _KERNEL
1449 	uint_t wlist_len;
1450 	struct clist *wlist;
1451 	frtn_t zcopy;
1452 #endif
1453 };
1454 typedef struct READ3resok READ3resok;
1455 
1456 struct READ3resfail {
1457 	post_op_attr file_attributes;
1458 };
1459 typedef struct READ3resfail READ3resfail;
1460 
1461 struct READ3res {
1462 	nfsstat3 status;
1463 	union {
1464 		READ3resok ok;
1465 		READ3resfail fail;
1466 	} res_u;
1467 };
1468 typedef struct READ3res READ3res;
1469 
1470 #ifdef _KERNEL
1471 /*
1472  * READ3 reply that directly decodes fattr3 directly into vattr
1473  */
1474 struct READ3vres {
1475 	nfsstat3 status;
1476 	struct post_op_vattr pov;
1477 	count3 count;
1478 	bool_t eof;
1479 	struct {
1480 		uint_t data_len;
1481 		char *data_val;
1482 	} data;
1483 	uint_t size;
1484 
1485 	uint_t wlist_len;
1486 	struct clist *wlist;
1487 };
1488 typedef struct READ3vres READ3vres;
1489 #endif /* _KERNEL */
1490 
1491 /*
1492  * READ3 reply that uiomoves data directly into a struct uio
1493  * ignores any attributes returned
1494  */
1495 struct READ3uiores {
1496 	nfsstat3 status;
1497 	count3 count;
1498 	bool_t eof;
1499 	struct uio *uiop;
1500 	uint_t size;		/* maximum reply size */
1501 #ifdef _KERNEL
1502 	uint_t wlist_len;
1503 	struct clist *wlist;
1504 #endif
1505 };
1506 typedef struct READ3uiores READ3uiores;
1507 
1508 enum stable_how {
1509 	UNSTABLE = 0,
1510 	DATA_SYNC = 1,
1511 	FILE_SYNC = 2
1512 };
1513 typedef enum stable_how stable_how;
1514 
1515 struct WRITE3args {
1516 	nfs_fh3 file;
1517 	offset3 offset;
1518 	count3 count;
1519 	stable_how stable;
1520 	struct {
1521 		uint_t data_len;
1522 		char *data_val;
1523 	} data;
1524 	mblk_t *mblk;
1525 #ifdef _KERNEL
1526 	struct clist *rlist;
1527 	CONN *conn;
1528 #endif
1529 };
1530 typedef struct WRITE3args WRITE3args;
1531 
1532 struct WRITE3resok {
1533 	wcc_data file_wcc;
1534 	count3 count;
1535 	stable_how committed;
1536 	writeverf3 verf;
1537 };
1538 typedef struct WRITE3resok WRITE3resok;
1539 
1540 struct WRITE3resfail {
1541 	wcc_data file_wcc;
1542 };
1543 typedef struct WRITE3resfail WRITE3resfail;
1544 
1545 struct WRITE3res {
1546 	nfsstat3 status;
1547 	union {
1548 		WRITE3resok ok;
1549 		WRITE3resfail fail;
1550 	} res_u;
1551 };
1552 typedef struct WRITE3res WRITE3res;
1553 
1554 enum createmode3 {
1555 	UNCHECKED = 0,
1556 	GUARDED = 1,
1557 	EXCLUSIVE = 2
1558 };
1559 typedef enum createmode3 createmode3;
1560 
1561 struct createhow3 {
1562 	createmode3 mode;
1563 	union {
1564 		sattr3 obj_attributes;
1565 		createverf3 verf;
1566 	} createhow3_u;
1567 };
1568 typedef struct createhow3 createhow3;
1569 
1570 struct CREATE3args {
1571 	diropargs3 where;
1572 	createhow3 how;
1573 };
1574 typedef struct CREATE3args CREATE3args;
1575 
1576 struct CREATE3resok {
1577 	post_op_fh3 obj;
1578 	post_op_attr obj_attributes;
1579 	wcc_data dir_wcc;
1580 };
1581 typedef struct CREATE3resok CREATE3resok;
1582 
1583 struct CREATE3resfail {
1584 	wcc_data dir_wcc;
1585 };
1586 typedef struct CREATE3resfail CREATE3resfail;
1587 
1588 struct CREATE3res {
1589 	nfsstat3 status;
1590 	union {
1591 		CREATE3resok ok;
1592 		CREATE3resfail fail;
1593 	} res_u;
1594 };
1595 typedef struct CREATE3res CREATE3res;
1596 
1597 struct MKDIR3args {
1598 	diropargs3 where;
1599 	sattr3 attributes;
1600 };
1601 typedef struct MKDIR3args MKDIR3args;
1602 
1603 struct MKDIR3resok {
1604 	post_op_fh3 obj;
1605 	post_op_attr obj_attributes;
1606 	wcc_data dir_wcc;
1607 };
1608 typedef struct MKDIR3resok MKDIR3resok;
1609 
1610 struct MKDIR3resfail {
1611 	wcc_data dir_wcc;
1612 };
1613 typedef struct MKDIR3resfail MKDIR3resfail;
1614 
1615 struct MKDIR3res {
1616 	nfsstat3 status;
1617 	union {
1618 		MKDIR3resok ok;
1619 		MKDIR3resfail fail;
1620 	} res_u;
1621 };
1622 typedef struct MKDIR3res MKDIR3res;
1623 
1624 struct symlinkdata3 {
1625 	sattr3 symlink_attributes;
1626 	nfspath3 symlink_data;
1627 };
1628 typedef struct symlinkdata3 symlinkdata3;
1629 
1630 struct SYMLINK3args {
1631 	diropargs3 where;
1632 	symlinkdata3 symlink;
1633 };
1634 typedef struct SYMLINK3args SYMLINK3args;
1635 
1636 struct SYMLINK3resok {
1637 	post_op_fh3 obj;
1638 	post_op_attr obj_attributes;
1639 	wcc_data dir_wcc;
1640 };
1641 typedef struct SYMLINK3resok SYMLINK3resok;
1642 
1643 struct SYMLINK3resfail {
1644 	wcc_data dir_wcc;
1645 };
1646 typedef struct SYMLINK3resfail SYMLINK3resfail;
1647 
1648 struct SYMLINK3res {
1649 	nfsstat3 status;
1650 	union {
1651 		SYMLINK3resok ok;
1652 		SYMLINK3resfail fail;
1653 	} res_u;
1654 };
1655 typedef struct SYMLINK3res SYMLINK3res;
1656 
1657 struct devicedata3 {
1658 	sattr3 dev_attributes;
1659 	specdata3 spec;
1660 };
1661 typedef struct devicedata3 devicedata3;
1662 
1663 struct mknoddata3 {
1664 	ftype3 type;
1665 	union {
1666 		devicedata3 device;
1667 		sattr3 pipe_attributes;
1668 	} mknoddata3_u;
1669 };
1670 typedef struct mknoddata3 mknoddata3;
1671 
1672 struct MKNOD3args {
1673 	diropargs3 where;
1674 	mknoddata3 what;
1675 };
1676 typedef struct MKNOD3args MKNOD3args;
1677 
1678 struct MKNOD3resok {
1679 	post_op_fh3 obj;
1680 	post_op_attr obj_attributes;
1681 	wcc_data dir_wcc;
1682 };
1683 typedef struct MKNOD3resok MKNOD3resok;
1684 
1685 struct MKNOD3resfail {
1686 	wcc_data dir_wcc;
1687 };
1688 typedef struct MKNOD3resfail MKNOD3resfail;
1689 
1690 struct MKNOD3res {
1691 	nfsstat3 status;
1692 	union {
1693 		MKNOD3resok ok;
1694 		MKNOD3resfail fail;
1695 	} res_u;
1696 };
1697 typedef struct MKNOD3res MKNOD3res;
1698 
1699 struct REMOVE3args {
1700 	diropargs3 object;
1701 };
1702 typedef struct REMOVE3args REMOVE3args;
1703 
1704 struct REMOVE3resok {
1705 	wcc_data dir_wcc;
1706 };
1707 typedef struct REMOVE3resok REMOVE3resok;
1708 
1709 struct REMOVE3resfail {
1710 	wcc_data dir_wcc;
1711 };
1712 typedef struct REMOVE3resfail REMOVE3resfail;
1713 
1714 struct REMOVE3res {
1715 	nfsstat3 status;
1716 	union {
1717 		REMOVE3resok ok;
1718 		REMOVE3resfail fail;
1719 	} res_u;
1720 };
1721 typedef struct REMOVE3res REMOVE3res;
1722 
1723 struct RMDIR3args {
1724 	diropargs3 object;
1725 };
1726 typedef struct RMDIR3args RMDIR3args;
1727 
1728 struct RMDIR3resok {
1729 	wcc_data dir_wcc;
1730 };
1731 typedef struct RMDIR3resok RMDIR3resok;
1732 
1733 struct RMDIR3resfail {
1734 	wcc_data dir_wcc;
1735 };
1736 typedef struct RMDIR3resfail RMDIR3resfail;
1737 
1738 struct RMDIR3res {
1739 	nfsstat3 status;
1740 	union {
1741 		RMDIR3resok ok;
1742 		RMDIR3resfail fail;
1743 	} res_u;
1744 };
1745 typedef struct RMDIR3res RMDIR3res;
1746 
1747 struct RENAME3args {
1748 	diropargs3 from;
1749 	diropargs3 to;
1750 };
1751 typedef struct RENAME3args RENAME3args;
1752 
1753 struct RENAME3resok {
1754 	wcc_data fromdir_wcc;
1755 	wcc_data todir_wcc;
1756 };
1757 typedef struct RENAME3resok RENAME3resok;
1758 
1759 struct RENAME3resfail {
1760 	wcc_data fromdir_wcc;
1761 	wcc_data todir_wcc;
1762 };
1763 typedef struct RENAME3resfail RENAME3resfail;
1764 
1765 struct RENAME3res {
1766 	nfsstat3 status;
1767 	union {
1768 		RENAME3resok ok;
1769 		RENAME3resfail fail;
1770 	} res_u;
1771 };
1772 typedef struct RENAME3res RENAME3res;
1773 
1774 struct LINK3args {
1775 	nfs_fh3 file;
1776 	diropargs3 link;
1777 };
1778 typedef struct LINK3args LINK3args;
1779 
1780 struct LINK3resok {
1781 	post_op_attr file_attributes;
1782 	wcc_data linkdir_wcc;
1783 };
1784 typedef struct LINK3resok LINK3resok;
1785 
1786 struct LINK3resfail {
1787 	post_op_attr file_attributes;
1788 	wcc_data linkdir_wcc;
1789 };
1790 typedef struct LINK3resfail LINK3resfail;
1791 
1792 struct LINK3res {
1793 	nfsstat3 status;
1794 	union {
1795 		LINK3resok ok;
1796 		LINK3resfail fail;
1797 	} res_u;
1798 };
1799 typedef struct LINK3res LINK3res;
1800 
1801 struct READDIR3args {
1802 	nfs_fh3 dir;
1803 	cookie3 cookie;
1804 	cookieverf3 cookieverf;
1805 	count3 count;
1806 };
1807 typedef struct READDIR3args READDIR3args;
1808 
1809 struct entry3 {
1810 	fileid3 fileid;
1811 	filename3 name;
1812 	cookie3 cookie;
1813 	struct entry3 *nextentry;
1814 };
1815 typedef struct entry3 entry3;
1816 
1817 struct dirlist3 {
1818 	entry3 *entries;
1819 	bool_t eof;
1820 };
1821 typedef struct dirlist3 dirlist3;
1822 
1823 struct READDIR3resok {
1824 	post_op_attr dir_attributes;
1825 	cookieverf3 cookieverf;
1826 	dirlist3 reply;
1827 	uint_t size;
1828 	uint_t count;
1829 	uint_t freecount;
1830 	cookie3 cookie;
1831 };
1832 typedef struct READDIR3resok READDIR3resok;
1833 
1834 struct READDIR3resfail {
1835 	post_op_attr dir_attributes;
1836 };
1837 typedef struct READDIR3resfail READDIR3resfail;
1838 
1839 struct READDIR3res {
1840 	nfsstat3 status;
1841 	union {
1842 		READDIR3resok ok;
1843 		READDIR3resfail fail;
1844 	} res_u;
1845 };
1846 typedef struct READDIR3res READDIR3res;
1847 
1848 #ifdef _KERNEL
1849 struct READDIR3vres {
1850 	nfsstat3 status;
1851 	post_op_vattr dir_attributes;
1852 	cookieverf3 cookieverf;
1853 	dirent64_t *entries;			/* decoded dirent64s */
1854 	uint_t size;				/* actual size of entries */
1855 	uint_t entries_size;			/* max size of entries */
1856 	off64_t loff;				/* last offset/cookie */
1857 	bool_t eof;				/* End of directory */
1858 };
1859 typedef struct READDIR3vres READDIR3vres;
1860 #endif /* _KERNEL */
1861 
1862 struct READDIRPLUS3args {
1863 	nfs_fh3 dir;
1864 	cookie3 cookie;
1865 	cookieverf3 cookieverf;
1866 	count3 dircount;
1867 	count3 maxcount;
1868 };
1869 typedef struct READDIRPLUS3args READDIRPLUS3args;
1870 
1871 struct entryplus3 {
1872 	fileid3 fileid;
1873 	filename3 name;
1874 	cookie3 cookie;
1875 	post_op_attr name_attributes;
1876 	post_op_fh3 name_handle;
1877 	struct entryplus3 *nextentry;
1878 };
1879 typedef struct entryplus3 entryplus3;
1880 
1881 struct dirlistplus3 {
1882 	entryplus3 *entries;
1883 	bool_t eof;
1884 };
1885 typedef struct dirlistplus3 dirlistplus3;
1886 
1887 struct entryplus3_info {
1888 	post_op_attr attr;
1889 	post_op_fh3 fh;
1890 	uint_t namelen;
1891 };
1892 typedef struct entryplus3_info entryplus3_info;
1893 
1894 struct READDIRPLUS3resok {
1895 	post_op_attr dir_attributes;
1896 	cookieverf3 cookieverf;
1897 	dirlistplus3 reply;
1898 	uint_t size;
1899 	uint_t count;
1900 	uint_t maxcount;
1901 	entryplus3_info *infop;
1902 };
1903 typedef struct READDIRPLUS3resok READDIRPLUS3resok;
1904 
1905 struct READDIRPLUS3resfail {
1906 	post_op_attr dir_attributes;
1907 };
1908 typedef struct READDIRPLUS3resfail READDIRPLUS3resfail;
1909 
1910 struct READDIRPLUS3res {
1911 	nfsstat3 status;
1912 	union {
1913 		READDIRPLUS3resok ok;
1914 		READDIRPLUS3resfail fail;
1915 	} res_u;
1916 };
1917 typedef struct READDIRPLUS3res READDIRPLUS3res;
1918 
1919 #ifdef _KERNEL
1920 struct entryplus3_va_fh {
1921 	int va_valid;
1922 	int fh_valid;
1923 	vattr_t va;
1924 	nfs_fh3 fh;
1925 	char *d_name;		/* back pointer into entries */
1926 };
1927 
1928 struct READDIRPLUS3vres {
1929 	nfsstat3 status;
1930 	post_op_vattr dir_attributes;
1931 	cookieverf3 cookieverf;
1932 	dirent64_t *entries;			/* decoded dirent64s */
1933 	uint_t size;				/* actual size of entries */
1934 	uint_t entries_size;			/* max size of entries */
1935 	bool_t eof;				/* End of directory */
1936 	off64_t loff;				/* last offset/cookie */
1937 	cred_t *credentials;			/* caller's credentials */
1938 	hrtime_t time;				/* time of READDIRPLUS call */
1939 };
1940 typedef struct READDIRPLUS3vres READDIRPLUS3vres;
1941 #endif /* _KERNEL */
1942 
1943 struct FSSTAT3args {
1944 	nfs_fh3 fsroot;
1945 };
1946 typedef struct FSSTAT3args FSSTAT3args;
1947 
1948 struct FSSTAT3resok {
1949 	post_op_attr obj_attributes;
1950 	size3 tbytes;
1951 	size3 fbytes;
1952 	size3 abytes;
1953 	size3 tfiles;
1954 	size3 ffiles;
1955 	size3 afiles;
1956 	uint32 invarsec;
1957 };
1958 typedef struct FSSTAT3resok FSSTAT3resok;
1959 
1960 struct FSSTAT3resfail {
1961 	post_op_attr obj_attributes;
1962 };
1963 typedef struct FSSTAT3resfail FSSTAT3resfail;
1964 
1965 struct FSSTAT3res {
1966 	nfsstat3 status;
1967 	union {
1968 		FSSTAT3resok ok;
1969 		FSSTAT3resfail fail;
1970 	} res_u;
1971 };
1972 typedef struct FSSTAT3res FSSTAT3res;
1973 
1974 struct FSINFO3args {
1975 	nfs_fh3 fsroot;
1976 };
1977 typedef struct FSINFO3args FSINFO3args;
1978 
1979 struct FSINFO3resok {
1980 	post_op_attr obj_attributes;
1981 	uint32 rtmax;
1982 	uint32 rtpref;
1983 	uint32 rtmult;
1984 	uint32 wtmax;
1985 	uint32 wtpref;
1986 	uint32 wtmult;
1987 	uint32 dtpref;
1988 	size3 maxfilesize;
1989 	nfstime3 time_delta;
1990 	uint32 properties;
1991 };
1992 typedef struct FSINFO3resok FSINFO3resok;
1993 
1994 struct FSINFO3resfail {
1995 	post_op_attr obj_attributes;
1996 };
1997 typedef struct FSINFO3resfail FSINFO3resfail;
1998 #define	FSF3_LINK 0x1
1999 #define	FSF3_SYMLINK 0x2
2000 #define	FSF3_HOMOGENEOUS 0x8
2001 #define	FSF3_CANSETTIME 0x10
2002 
2003 struct FSINFO3res {
2004 	nfsstat3 status;
2005 	union {
2006 		FSINFO3resok ok;
2007 		FSINFO3resfail fail;
2008 	} res_u;
2009 };
2010 typedef struct FSINFO3res FSINFO3res;
2011 
2012 struct PATHCONF3args {
2013 	nfs_fh3 object;
2014 };
2015 typedef struct PATHCONF3args PATHCONF3args;
2016 
2017 struct nfs3_pathconf_info {
2018 	uint32 link_max;
2019 	uint32 name_max;
2020 	bool_t no_trunc;
2021 	bool_t chown_restricted;
2022 	bool_t case_insensitive;
2023 	bool_t case_preserving;
2024 };
2025 typedef struct nfs3_pathconf_info nfs3_pathconf_info;
2026 
2027 struct PATHCONF3resok {
2028 	post_op_attr obj_attributes;
2029 	nfs3_pathconf_info info;
2030 };
2031 typedef struct PATHCONF3resok PATHCONF3resok;
2032 
2033 struct PATHCONF3resfail {
2034 	post_op_attr obj_attributes;
2035 };
2036 typedef struct PATHCONF3resfail PATHCONF3resfail;
2037 
2038 struct PATHCONF3res {
2039 	nfsstat3 status;
2040 	union {
2041 		PATHCONF3resok ok;
2042 		PATHCONF3resfail fail;
2043 	} res_u;
2044 };
2045 typedef struct PATHCONF3res PATHCONF3res;
2046 
2047 struct COMMIT3args {
2048 	nfs_fh3 file;
2049 	offset3 offset;
2050 	count3 count;
2051 };
2052 typedef struct COMMIT3args COMMIT3args;
2053 
2054 struct COMMIT3resok {
2055 	wcc_data file_wcc;
2056 	writeverf3 verf;
2057 };
2058 typedef struct COMMIT3resok COMMIT3resok;
2059 
2060 struct COMMIT3resfail {
2061 	wcc_data file_wcc;
2062 };
2063 typedef struct COMMIT3resfail COMMIT3resfail;
2064 
2065 struct COMMIT3res {
2066 	nfsstat3 status;
2067 	union {
2068 		COMMIT3resok ok;
2069 		COMMIT3resfail fail;
2070 	} res_u;
2071 };
2072 typedef struct COMMIT3res COMMIT3res;
2073 
2074 #define	NFS3_PROGRAM ((rpcprog_t)100003)
2075 #define	NFS_V3 ((rpcvers_t)3)
2076 #define	NFSPROC3_NULL ((rpcproc_t)0)
2077 #define	NFSPROC3_GETATTR ((rpcproc_t)1)
2078 #define	NFSPROC3_SETATTR ((rpcproc_t)2)
2079 #define	NFSPROC3_LOOKUP ((rpcproc_t)3)
2080 #define	NFSPROC3_ACCESS ((rpcproc_t)4)
2081 #define	NFSPROC3_READLINK ((rpcproc_t)5)
2082 #define	NFSPROC3_READ ((rpcproc_t)6)
2083 #define	NFSPROC3_WRITE ((rpcproc_t)7)
2084 #define	NFSPROC3_CREATE ((rpcproc_t)8)
2085 #define	NFSPROC3_MKDIR ((rpcproc_t)9)
2086 #define	NFSPROC3_SYMLINK ((rpcproc_t)10)
2087 #define	NFSPROC3_MKNOD ((rpcproc_t)11)
2088 #define	NFSPROC3_REMOVE ((rpcproc_t)12)
2089 #define	NFSPROC3_RMDIR ((rpcproc_t)13)
2090 #define	NFSPROC3_RENAME ((rpcproc_t)14)
2091 #define	NFSPROC3_LINK ((rpcproc_t)15)
2092 #define	NFSPROC3_READDIR ((rpcproc_t)16)
2093 #define	NFSPROC3_READDIRPLUS ((rpcproc_t)17)
2094 #define	NFSPROC3_FSSTAT ((rpcproc_t)18)
2095 #define	NFSPROC3_FSINFO ((rpcproc_t)19)
2096 #define	NFSPROC3_PATHCONF ((rpcproc_t)20)
2097 #define	NFSPROC3_COMMIT ((rpcproc_t)21)
2098 
2099 #ifndef _KERNEL
2100 extern  void * nfsproc3_null_3();
2101 extern  GETATTR3res * nfsproc3_getattr_3();
2102 extern  SETATTR3res * nfsproc3_setattr_3();
2103 extern  LOOKUP3res * nfsproc3_lookup_3();
2104 extern  ACCESS3res * nfsproc3_access_3();
2105 extern  READLINK3res * nfsproc3_readlink_3();
2106 extern  READ3res * nfsproc3_read_3();
2107 extern  WRITE3res * nfsproc3_write_3();
2108 extern  CREATE3res * nfsproc3_create_3();
2109 extern  MKDIR3res * nfsproc3_mkdir_3();
2110 extern  SYMLINK3res * nfsproc3_symlink_3();
2111 extern  MKNOD3res * nfsproc3_mknod_3();
2112 extern  REMOVE3res * nfsproc3_remove_3();
2113 extern  RMDIR3res * nfsproc3_rmdir_3();
2114 extern  RENAME3res * nfsproc3_rename_3();
2115 extern  LINK3res * nfsproc3_link_3();
2116 extern  READDIR3res * nfsproc3_readdir_3();
2117 extern  READDIRPLUS3res * nfsproc3_readdirplus_3();
2118 extern  FSSTAT3res * nfsproc3_fsstat_3();
2119 extern  FSINFO3res * nfsproc3_fsinfo_3();
2120 extern  PATHCONF3res * nfsproc3_pathconf_3();
2121 extern  COMMIT3res * nfsproc3_commit_3();
2122 #endif	/* !_KERNEL */
2123 
2124 #ifdef _KERNEL
2125 /* the NFS Version 3 XDR functions */
2126 
2127 extern bool_t xdr_nfs_fh3(XDR *, nfs_fh3 *);
2128 extern bool_t xdr_nfslog_nfs_fh3(XDR *, nfs_fh3 *);
2129 extern bool_t xdr_nfs_fh3_server(XDR *, nfs_fh3 *);
2130 extern bool_t xdr_diropargs3(XDR *, diropargs3 *);
2131 extern bool_t xdr_post_op_attr(XDR *, post_op_attr *);
2132 extern bool_t xdr_post_op_fh3(XDR *, post_op_fh3 *);
2133 extern bool_t xdr_GETATTR3res(XDR *, GETATTR3res *);
2134 extern bool_t xdr_GETATTR3vres(XDR *, GETATTR3vres *);
2135 extern bool_t xdr_SETATTR3args(XDR *, SETATTR3args *);
2136 extern bool_t xdr_SETATTR3res(XDR *, SETATTR3res *);
2137 extern bool_t xdr_LOOKUP3res(XDR *, LOOKUP3res *);
2138 extern bool_t xdr_LOOKUP3vres(XDR *, LOOKUP3vres *);
2139 extern bool_t xdr_ACCESS3args(XDR *, ACCESS3args *);
2140 extern bool_t xdr_ACCESS3res(XDR *, ACCESS3res *);
2141 extern bool_t xdr_READLINK3args(XDR *, READLINK3args *);
2142 extern bool_t xdr_READLINK3res(XDR *, READLINK3res *);
2143 extern bool_t xdr_READ3args(XDR *, READ3args *);
2144 extern bool_t xdr_READ3res(XDR *, READ3res *);
2145 extern bool_t xdr_READ3vres(XDR *, READ3vres *);
2146 extern bool_t xdr_READ3uiores(XDR *, READ3uiores *);
2147 extern bool_t xdr_WRITE3args(XDR *, WRITE3args *);
2148 extern bool_t xdr_WRITE3res(XDR *, WRITE3res *);
2149 extern bool_t xdr_CREATE3args(XDR *, CREATE3args *);
2150 extern bool_t xdr_CREATE3res(XDR *, CREATE3res *);
2151 extern bool_t xdr_MKDIR3args(XDR *, MKDIR3args *);
2152 extern bool_t xdr_MKDIR3res(XDR *, MKDIR3res *);
2153 extern bool_t xdr_SYMLINK3args(XDR *, SYMLINK3args *);
2154 extern bool_t xdr_SYMLINK3res(XDR *, SYMLINK3res *);
2155 extern bool_t xdr_MKNOD3args(XDR *, MKNOD3args *);
2156 extern bool_t xdr_MKNOD3res(XDR *, MKNOD3res *);
2157 extern bool_t xdr_REMOVE3res(XDR *, REMOVE3res *);
2158 extern bool_t xdr_RMDIR3resfail(XDR *, RMDIR3resfail *);
2159 extern bool_t xdr_RMDIR3res(XDR *, RMDIR3res *);
2160 extern bool_t xdr_RENAME3args(XDR *, RENAME3args *);
2161 extern bool_t xdr_RENAME3res(XDR *, RENAME3res *);
2162 extern bool_t xdr_LINK3args(XDR *, LINK3args *);
2163 extern bool_t xdr_LINK3res(XDR *, LINK3res *);
2164 extern bool_t xdr_READDIR3args(XDR *, READDIR3args *);
2165 extern bool_t xdr_READDIR3res(XDR *, READDIR3res *);
2166 extern bool_t xdr_READDIR3vres(XDR *, READDIR3vres *);
2167 extern bool_t xdr_READDIRPLUS3args(XDR *, READDIRPLUS3args *);
2168 extern bool_t xdr_READDIRPLUS3res(XDR *, READDIRPLUS3res *);
2169 extern bool_t xdr_READDIRPLUS3vres(XDR *, READDIRPLUS3vres *);
2170 extern bool_t xdr_FSSTAT3res(XDR *, FSSTAT3res *);
2171 extern bool_t xdr_FSINFO3res(XDR *, FSINFO3res *);
2172 extern bool_t xdr_PATHCONF3res(XDR *, PATHCONF3res *);
2173 extern bool_t xdr_COMMIT3args(XDR *, COMMIT3args *);
2174 extern bool_t xdr_COMMIT3res(XDR *, COMMIT3res *);
2175 extern bool_t xdr_fastnfs_fh3(XDR *, nfs_fh3 **);
2176 
2177 /*
2178  * The NFS Version 3 service procedures.
2179  */
2180 struct exportinfo;	/* defined in nfs/export.h */
2181 struct servinfo;	/* defined in nfs/nfs_clnt.h */
2182 struct mntinfo;		/* defined in nfs/nfs_clnt.h */
2183 struct sec_ol;		/* defined in nfs/export.h */
2184 
2185 extern void rfs3_getattr(GETATTR3args *, GETATTR3res *,
2186 			struct exportinfo *, struct svc_req *, cred_t *);
2187 extern void *rfs3_getattr_getfh(GETATTR3args *);
2188 extern void rfs3_setattr(SETATTR3args *, SETATTR3res *,
2189 			struct exportinfo *, struct svc_req *, cred_t *);
2190 extern void *rfs3_setattr_getfh(SETATTR3args *);
2191 extern void rfs3_lookup(LOOKUP3args *, LOOKUP3res *,
2192 			struct exportinfo *, struct svc_req *, cred_t *);
2193 extern void *rfs3_lookup_getfh(LOOKUP3args *);
2194 extern void rfs3_access(ACCESS3args *, ACCESS3res *,
2195 			struct exportinfo *, struct svc_req *, cred_t *);
2196 extern void *rfs3_access_getfh(ACCESS3args *);
2197 extern void rfs3_readlink(READLINK3args *, READLINK3res *,
2198 			struct exportinfo *, struct svc_req *, cred_t *);
2199 extern void *rfs3_readlink_getfh(READLINK3args *);
2200 extern void rfs3_readlink_free(READLINK3res *);
2201 extern void rfs3_read(READ3args *, READ3res *,
2202 			struct exportinfo *, struct svc_req *, cred_t *);
2203 extern void *rfs3_read_getfh(READ3args *);
2204 extern void rfs3_read_free(READ3res *);
2205 extern void rfs3_write(WRITE3args *, WRITE3res *,
2206 			struct exportinfo *, struct svc_req *, cred_t *);
2207 extern void *rfs3_write_getfh(WRITE3args *);
2208 extern void rfs3_create(CREATE3args *, CREATE3res *,
2209 			struct exportinfo *, struct svc_req *, cred_t *);
2210 extern void *rfs3_create_getfh(CREATE3args *);
2211 extern void rfs3_mkdir(MKDIR3args *, MKDIR3res *,
2212 			struct exportinfo *, struct svc_req *, cred_t *);
2213 extern void *rfs3_mkdir_getfh(MKDIR3args *);
2214 extern void rfs3_symlink(SYMLINK3args *, SYMLINK3res *,
2215 			struct exportinfo *, struct svc_req *, cred_t *);
2216 extern void *rfs3_symlink_getfh(SYMLINK3args *);
2217 extern void rfs3_mknod(MKNOD3args *, MKNOD3res *,
2218 			struct exportinfo *, struct svc_req *, cred_t *);
2219 extern void *rfs3_mknod_getfh(MKNOD3args *);
2220 extern void rfs3_remove(REMOVE3args *, REMOVE3res *,
2221 			struct exportinfo *, struct svc_req *, cred_t *);
2222 extern void *rfs3_remove_getfh(REMOVE3args *);
2223 extern void rfs3_rmdir(RMDIR3args *, RMDIR3res *,
2224 			struct exportinfo *, struct svc_req *, cred_t *);
2225 extern void *rfs3_rmdir_getfh(RMDIR3args *);
2226 extern void rfs3_rename(RENAME3args *, RENAME3res *,
2227 			struct exportinfo *, struct svc_req *, cred_t *);
2228 extern void *rfs3_rename_getfh(RENAME3args *);
2229 extern void rfs3_link(LINK3args *, LINK3res *,
2230 			struct exportinfo *, struct svc_req *, cred_t *);
2231 extern void *rfs3_link_getfh(LINK3args *);
2232 extern void rfs3_readdir(READDIR3args *, READDIR3res *,
2233 			struct exportinfo *, struct svc_req *, cred_t *);
2234 extern void *rfs3_readdir_getfh(READDIR3args *);
2235 extern void rfs3_readdir_free(READDIR3res *);
2236 extern void rfs3_readdirplus(READDIRPLUS3args *, READDIRPLUS3res *,
2237 			struct exportinfo *, struct svc_req *, cred_t *);
2238 extern void *rfs3_readdirplus_getfh(READDIRPLUS3args *);
2239 extern void rfs3_readdirplus_free(READDIRPLUS3res *);
2240 extern void rfs3_fsstat(FSSTAT3args *, FSSTAT3res *,
2241 			struct exportinfo *, struct svc_req *, cred_t *);
2242 extern void *rfs3_fsstat_getfh(FSSTAT3args *);
2243 extern void rfs3_fsinfo(FSINFO3args *, FSINFO3res *,
2244 			struct exportinfo *, struct svc_req *, cred_t *);
2245 extern void *rfs3_fsinfo_getfh(FSINFO3args *);
2246 extern void rfs3_pathconf(PATHCONF3args *, PATHCONF3res *,
2247 			struct exportinfo *, struct svc_req *, cred_t *);
2248 extern void *rfs3_pathconf_getfh(PATHCONF3args *);
2249 extern void rfs3_commit(COMMIT3args *, COMMIT3res *,
2250 			struct exportinfo *, struct svc_req *, cred_t *);
2251 extern void *rfs3_commit_getfh(COMMIT3args *);
2252 extern void rfs3_srvrinit(void);
2253 extern void rfs3_srvrfini(void);
2254 
2255 extern int	nfs3_validate_caches(vnode_t *, cred_t *);
2256 extern void	nfs3_cache_post_op_attr(vnode_t *, post_op_attr *, hrtime_t,
2257 			cred_t *);
2258 extern void	nfs3_cache_post_op_vattr(vnode_t *, post_op_vattr *, hrtime_t,
2259 			cred_t *);
2260 extern void	nfs3_cache_wcc_data(vnode_t *, wcc_data *, hrtime_t, cred_t *);
2261 extern void	nfs3_attrcache(vnode_t *, fattr3 *, hrtime_t);
2262 extern int	nfs3_cache_fattr3(vnode_t *, fattr3 *, vattr_t *, hrtime_t,
2263 			cred_t *);
2264 extern int	nfs3_getattr_otw(vnode_t *, struct vattr *, cred_t *);
2265 extern int	nfs3getattr(vnode_t *, struct vattr *, cred_t *);
2266 extern int	fattr3_to_vattr(vnode_t *, fattr3 *, struct vattr *);
2267 extern int	nfs3tsize(void);
2268 extern uint_t	nfs3_tsize(struct knetconfig *);
2269 extern uint_t	rfs3_tsize(struct svc_req *);
2270 extern int	vattr_to_sattr3(struct vattr *, sattr3 *);
2271 extern void	setdiropargs3(diropargs3 *, char *, vnode_t *);
2272 extern enum nfsstat3 puterrno3(int);
2273 extern int	geterrno3(enum nfsstat3);
2274 extern int	nfs3init(int, char *);
2275 extern void	nfs3fini(void);
2276 extern int	nfs3_vfsinit(void);
2277 extern void	nfs3_vfsfini(void);
2278 extern void	vattr_to_post_op_attr(struct vattr *, post_op_attr *);
2279 extern void	mblk_to_iov(mblk_t *, int, struct iovec *);
2280 extern int	rfs_publicfh_mclookup(char *, vnode_t *, cred_t *,
2281 			vnode_t **, struct exportinfo **, struct sec_ol *);
2282 extern int	rfs_pathname(char *, vnode_t **, vnode_t **,
2283 			vnode_t *, cred_t *, int);
2284 extern vtype_t		nf3_to_vt[];
2285 extern kstat_named_t	*rfsproccnt_v3_ptr;
2286 extern vfsops_t		*nfs3_vfsops;
2287 extern struct vnodeops	*nfs3_vnodeops;
2288 extern const struct fs_operation_def nfs3_vnodeops_template[];
2289 #ifdef DEBUG
2290 extern int		rfs3_do_pre_op_attr;
2291 extern int		rfs3_do_post_op_attr;
2292 extern int		rfs3_do_post_op_fh3;
2293 #endif
2294 /*
2295  * Some servers do not properly update the attributes of the
2296  * directory when changes are made.  To allow interoperability
2297  * with these broken servers, the nfs_disable_rddir_cache
2298  * parameter can be used to disable readdir response caching.
2299  */
2300 extern int		nfs_disable_rddir_cache;
2301 
2302 /*
2303  * External functions called by the v2/v3 code into the v4 code
2304  */
2305 extern void		nfs4_clnt_init(void);
2306 extern void		nfs4_clnt_fini(void);
2307 
2308 /*
2309  * Does NFS4 server have a vnode delegated?  TRUE if so, FALSE if not.
2310  */
2311 extern bool_t rfs4_check_delegated(int mode, vnode_t *, bool_t trunc);
2312 /*
2313  * VOP_GETATTR call. If a NFS4 delegation is present on the supplied vnode
2314  * call back to the delegated client to get attributes for AT_MTIME and
2315  * AT_SIZE. Invoke VOP_GETATTR to get all other attributes or all attributes
2316  * if no delegation is present.
2317  */
2318 extern int rfs4_delegated_getattr(vnode_t *, vattr_t *, int, cred_t *);
2319 extern void rfs4_hold_deleg_policy(void);
2320 extern void rfs4_rele_deleg_policy(void);
2321 
2322 extern int do_xattr_exists_check(vnode_t *, ulong_t *, cred_t *);
2323 
2324 extern ts_label_t	*nfs_getflabel(vnode_t *, struct exportinfo *);
2325 extern boolean_t	do_rfs_label_check(bslabel_t *, vnode_t *, int,
2326 			    struct exportinfo *);
2327 
2328 /*
2329  * Copy Reduction support.
2330  * xuio_t wrapper with additional private data.
2331  */
2332 
2333 typedef struct nfs_xuio {
2334 	xuio_t nu_uio;
2335 	vnode_t *nu_vp;
2336 	uint_t nu_ref;
2337 	frtn_t nu_frtn;
2338 } nfs_xuio_t;
2339 
2340 xuio_t *rfs_setup_xuio(vnode_t *);
2341 mblk_t *uio_to_mblk(uio_t *);
2342 void rfs_rndup_mblks(mblk_t *, uint_t, int);
2343 void rfs_free_xuio(void *);
2344 
2345 #endif	/* _KERNEL */
2346 
2347 #ifdef	__cplusplus
2348 }
2349 #endif
2350 
2351 #endif	/* _NFS_NFS_H */
2352