xref: /titanic_51/usr/src/uts/common/nfs/nfs.h (revision cbdcbd056f15c9c9fd82d5543b3a502677c4d391)
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 2009 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 time_t	rfs4_lease_time;
958 extern time_t	rfs4_grace_period;
959 extern nvlist_t	*rfs4_dss_paths, *rfs4_dss_oldpaths;
960 
961 
962 extern kstat_named_t	*global_svstat_ptr[];
963 
964 extern krwlock_t	rroklock;
965 extern vtype_t		nf_to_vt[];
966 extern kstat_named_t	*rfsproccnt_v2_ptr;
967 extern kmutex_t		nfs_minor_lock;
968 extern int		nfs_major;
969 extern int		nfs_minor;
970 extern vfsops_t		*nfs_vfsops;
971 extern struct vnodeops	*nfs_vnodeops;
972 extern const struct fs_operation_def nfs_vnodeops_template[];
973 extern int		nfsfstyp;
974 
975 /*
976  * Per-zone stats as consumed by nfsstat(1m)
977  */
978 struct nfs_version_stats {
979 	kstat_named_t	*aclreqcnt_ptr;		/* nfs_acl:0:aclreqcnt_v? */
980 	kstat_named_t	*aclproccnt_ptr;	/* nfs_acl:0:aclproccnt_v? */
981 	kstat_named_t	*rfsreqcnt_ptr;		/* nfs:0:rfsreqcnt_v? */
982 	kstat_named_t	*rfsproccnt_ptr;	/* nfs:0:rfsproccnt_v? */
983 };
984 
985 /*
986  * A bit of asymmetry: nfs:0:nfs_client isn't part of this structure.
987  */
988 struct nfs_stats {
989 	kstat_named_t		*nfs_stats_svstat_ptr[NFS_VERSMAX + 1];
990 	struct nfs_version_stats	nfs_stats_v2;
991 	struct nfs_version_stats	nfs_stats_v3;
992 	struct nfs_version_stats	nfs_stats_v4;
993 };
994 
995 /*
996  * Key used to retrieve counters.
997  */
998 extern zone_key_t nfsstat_zone_key;
999 
1000 /*
1001  * Zone callback functions.
1002  */
1003 extern void *nfsstat_zone_init(zoneid_t);
1004 extern void nfsstat_zone_fini(zoneid_t, void *);
1005 
1006 #endif	/* _KERNEL */
1007 
1008 /*
1009  * Version 3 declarations and definitions.
1010  */
1011 
1012 #define	NFS3_FHSIZE 64
1013 #define	NFS3_COOKIEVERFSIZE 8
1014 #define	NFS3_CREATEVERFSIZE 8
1015 #define	NFS3_WRITEVERFSIZE 8
1016 
1017 typedef char *filename3;
1018 
1019 typedef char *nfspath3;
1020 
1021 #define	nfs3nametoolong	((char *)-1)
1022 
1023 typedef uint64 fileid3;
1024 
1025 typedef uint64 cookie3;
1026 
1027 typedef uint32 uid3;
1028 
1029 typedef uint32 gid3;
1030 
1031 typedef uint64 size3;
1032 
1033 typedef uint64 offset3;
1034 
1035 typedef uint32 mode3;
1036 
1037 typedef uint32 count3;
1038 
1039 /*
1040  * These three are really opaque arrays, but we treat them as
1041  * uint64 for efficiency sake
1042  */
1043 typedef uint64 cookieverf3;
1044 
1045 typedef uint64 createverf3;
1046 
1047 typedef uint64 writeverf3;
1048 
1049 typedef struct nfs_fh3 {
1050 	uint_t fh3_length;
1051 	union nfs_fh3_u {
1052 		struct nfs_fh3_i {
1053 			fhandle3_t fh3_i;
1054 		} nfs_fh3_i;
1055 		char data[NFS3_FHSIZE];
1056 	} fh3_u;
1057 	uint_t fh3_flags;
1058 } nfs_fh3;
1059 #define	fh3_fsid	fh3_u.nfs_fh3_i.fh3_i._fh3_fsid
1060 #define	fh3_len		fh3_u.nfs_fh3_i.fh3_i._fh3_len
1061 #define	fh3_data	fh3_u.nfs_fh3_i.fh3_i._fh3_data
1062 #define	fh3_xlen	fh3_u.nfs_fh3_i.fh3_i._fh3_xlen
1063 #define	fh3_xdata	fh3_u.nfs_fh3_i.fh3_i._fh3_xdata
1064 #define	FH3TOFIDP(fh)	((fid_t *)&((fh)->fh3_len))
1065 #define	FH3TOXFIDP(fh)	((fid_t *)&((fh)->fh3_xlen))
1066 
1067 /*
1068  * nfs_fh3.fh3_flags values
1069  */
1070 #define	FH_WEBNFS	0x1	/* fh is WebNFS overloaded - see makefh3_ol() */
1071 
1072 /*
1073  * Two elements were added to the
1074  * diropargs3 structure for performance (xdr-inlining).
1075  * They are not included as part of the args
1076  * that are encoded or decoded:
1077  * dirp - ptr to the nfs_fh3
1078  * flag indicating when to free the name that was
1079  * allocated during decode.
1080  */
1081 struct diropargs3 {
1082 	nfs_fh3 *dirp;
1083 	nfs_fh3 dir;
1084 	filename3 name;
1085 	int flags;
1086 };
1087 typedef struct diropargs3 diropargs3;
1088 
1089 struct nfstime3 {
1090 	uint32 seconds;
1091 	uint32 nseconds;
1092 };
1093 typedef struct nfstime3 nfstime3;
1094 
1095 struct specdata3 {
1096 	uint32 specdata1;
1097 	uint32 specdata2;
1098 };
1099 typedef struct specdata3 specdata3;
1100 
1101 enum nfsstat3 {
1102 	NFS3_OK = 0,
1103 	NFS3ERR_PERM = 1,
1104 	NFS3ERR_NOENT = 2,
1105 	NFS3ERR_IO = 5,
1106 	NFS3ERR_NXIO = 6,
1107 	NFS3ERR_ACCES = 13,
1108 	NFS3ERR_EXIST = 17,
1109 	NFS3ERR_XDEV = 18,
1110 	NFS3ERR_NODEV = 19,
1111 	NFS3ERR_NOTDIR = 20,
1112 	NFS3ERR_ISDIR = 21,
1113 	NFS3ERR_INVAL = 22,
1114 	NFS3ERR_FBIG = 27,
1115 	NFS3ERR_NOSPC = 28,
1116 	NFS3ERR_ROFS = 30,
1117 	NFS3ERR_MLINK = 31,
1118 	NFS3ERR_NAMETOOLONG = 63,
1119 	NFS3ERR_NOTEMPTY = 66,
1120 	NFS3ERR_DQUOT = 69,
1121 	NFS3ERR_STALE = 70,
1122 	NFS3ERR_REMOTE = 71,
1123 	NFS3ERR_BADHANDLE = 10001,
1124 	NFS3ERR_NOT_SYNC = 10002,
1125 	NFS3ERR_BAD_COOKIE = 10003,
1126 	NFS3ERR_NOTSUPP = 10004,
1127 	NFS3ERR_TOOSMALL = 10005,
1128 	NFS3ERR_SERVERFAULT = 10006,
1129 	NFS3ERR_BADTYPE = 10007,
1130 	NFS3ERR_JUKEBOX = 10008
1131 };
1132 typedef enum nfsstat3 nfsstat3;
1133 
1134 enum ftype3 {
1135 	NF3REG = 1,
1136 	NF3DIR = 2,
1137 	NF3BLK = 3,
1138 	NF3CHR = 4,
1139 	NF3LNK = 5,
1140 	NF3SOCK = 6,
1141 	NF3FIFO = 7
1142 };
1143 typedef enum ftype3 ftype3;
1144 
1145 struct fattr3 {
1146 	ftype3 type;
1147 	mode3 mode;
1148 	uint32 nlink;
1149 	uid3 uid;
1150 	gid3 gid;
1151 	size3 size;
1152 	size3 used;
1153 	specdata3 rdev;
1154 	uint64 fsid;
1155 	fileid3 fileid;
1156 	nfstime3 atime;
1157 	nfstime3 mtime;
1158 	nfstime3 ctime;
1159 };
1160 typedef struct fattr3 fattr3;
1161 
1162 #define	NFS3_SIZEOF_FATTR3	(21)
1163 
1164 #ifdef _KERNEL
1165 struct fattr3_res {
1166 	nfsstat3 status;
1167 	vattr_t *vap;
1168 	vnode_t *vp;
1169 };
1170 typedef struct fattr3_res fattr3_res;
1171 #endif /* _KERNEL */
1172 
1173 struct post_op_attr {
1174 	bool_t attributes;
1175 	fattr3 attr;
1176 };
1177 typedef struct post_op_attr post_op_attr;
1178 
1179 #ifdef _KERNEL
1180 struct post_op_vattr {
1181 	bool_t		attributes;
1182 	fattr3_res	fres;
1183 };
1184 typedef struct post_op_vattr post_op_vattr;
1185 #endif /* _KERNEL */
1186 
1187 struct wcc_attr {
1188 	size3 size;
1189 	nfstime3 mtime;
1190 	nfstime3 ctime;
1191 };
1192 typedef struct wcc_attr wcc_attr;
1193 
1194 struct pre_op_attr {
1195 	bool_t attributes;
1196 	wcc_attr attr;
1197 };
1198 typedef struct pre_op_attr pre_op_attr;
1199 
1200 struct wcc_data {
1201 	pre_op_attr before;
1202 	post_op_attr after;
1203 };
1204 typedef struct wcc_data wcc_data;
1205 
1206 struct post_op_fh3 {
1207 	bool_t handle_follows;
1208 	nfs_fh3 handle;
1209 };
1210 typedef struct post_op_fh3 post_op_fh3;
1211 
1212 enum time_how {
1213 	DONT_CHANGE = 0,
1214 	SET_TO_SERVER_TIME = 1,
1215 	SET_TO_CLIENT_TIME = 2
1216 };
1217 typedef enum time_how time_how;
1218 
1219 struct set_mode3 {
1220 	bool_t set_it;
1221 	mode3 mode;
1222 };
1223 typedef struct set_mode3 set_mode3;
1224 
1225 struct set_uid3 {
1226 	bool_t set_it;
1227 	uid3 uid;
1228 };
1229 typedef struct set_uid3 set_uid3;
1230 
1231 struct set_gid3 {
1232 	bool_t set_it;
1233 	gid3 gid;
1234 };
1235 typedef struct set_gid3 set_gid3;
1236 
1237 struct set_size3 {
1238 	bool_t set_it;
1239 	size3 size;
1240 };
1241 typedef struct set_size3 set_size3;
1242 
1243 struct set_atime {
1244 	time_how set_it;
1245 	nfstime3 atime;
1246 };
1247 typedef struct set_atime set_atime;
1248 
1249 struct set_mtime {
1250 	time_how set_it;
1251 	nfstime3 mtime;
1252 };
1253 typedef struct set_mtime set_mtime;
1254 
1255 struct sattr3 {
1256 	set_mode3 mode;
1257 	set_uid3 uid;
1258 	set_gid3 gid;
1259 	set_size3 size;
1260 	set_atime atime;
1261 	set_mtime mtime;
1262 };
1263 typedef struct sattr3 sattr3;
1264 
1265 /*
1266  * A couple of defines to make resok and resfail look like the
1267  * correct things in a response type independent manner.
1268  */
1269 #define	resok	res_u.ok
1270 #define	resfail	res_u.fail
1271 
1272 struct GETATTR3args {
1273 	nfs_fh3 object;
1274 };
1275 typedef struct GETATTR3args GETATTR3args;
1276 
1277 struct GETATTR3resok {
1278 	fattr3 obj_attributes;
1279 };
1280 typedef struct GETATTR3resok GETATTR3resok;
1281 
1282 struct GETATTR3res {
1283 	nfsstat3 status;
1284 	union {
1285 		GETATTR3resok ok;
1286 	} res_u;
1287 };
1288 typedef struct GETATTR3res GETATTR3res;
1289 
1290 #ifdef _KERNEL
1291 struct GETATTR3vres {
1292 	nfsstat3 status;
1293 	fattr3_res fres;
1294 };
1295 typedef struct GETATTR3vres GETATTR3vres;
1296 #endif /* _KERNEL */
1297 
1298 struct sattrguard3 {
1299 	bool_t check;
1300 	nfstime3 obj_ctime;
1301 };
1302 typedef struct sattrguard3 sattrguard3;
1303 
1304 struct SETATTR3args {
1305 	nfs_fh3 object;
1306 	sattr3 new_attributes;
1307 	sattrguard3 guard;
1308 };
1309 typedef struct SETATTR3args SETATTR3args;
1310 
1311 struct SETATTR3resok {
1312 	wcc_data obj_wcc;
1313 };
1314 typedef struct SETATTR3resok SETATTR3resok;
1315 
1316 struct SETATTR3resfail {
1317 	wcc_data obj_wcc;
1318 };
1319 typedef struct SETATTR3resfail SETATTR3resfail;
1320 
1321 struct SETATTR3res {
1322 	nfsstat3 status;
1323 	union {
1324 		SETATTR3resok ok;
1325 		SETATTR3resfail fail;
1326 	} res_u;
1327 };
1328 typedef struct SETATTR3res SETATTR3res;
1329 
1330 struct LOOKUP3args {
1331 	diropargs3 what;
1332 };
1333 typedef struct LOOKUP3args LOOKUP3args;
1334 
1335 struct LOOKUP3resok {
1336 	nfs_fh3 object;
1337 	post_op_attr obj_attributes;
1338 	post_op_attr dir_attributes;
1339 };
1340 typedef struct LOOKUP3resok LOOKUP3resok;
1341 
1342 struct LOOKUP3resfail {
1343 	post_op_attr dir_attributes;
1344 };
1345 typedef struct LOOKUP3resfail LOOKUP3resfail;
1346 
1347 struct LOOKUP3res {
1348 	nfsstat3 status;
1349 	union {
1350 		LOOKUP3resok ok;
1351 		LOOKUP3resfail fail;
1352 	} res_u;
1353 };
1354 typedef struct LOOKUP3res LOOKUP3res;
1355 
1356 #ifdef _KERNEL
1357 struct LOOKUP3vres {
1358 	nfsstat3 status;
1359 	nfs_fh3 object;
1360 	post_op_vattr dir_attributes;
1361 	post_op_vattr obj_attributes;
1362 };
1363 typedef struct LOOKUP3vres LOOKUP3vres;
1364 #endif /* _KERNEL */
1365 
1366 struct ACCESS3args {
1367 	nfs_fh3 object;
1368 	uint32 access;
1369 };
1370 typedef struct ACCESS3args ACCESS3args;
1371 #define	ACCESS3_READ 0x1
1372 #define	ACCESS3_LOOKUP 0x2
1373 #define	ACCESS3_MODIFY 0x4
1374 #define	ACCESS3_EXTEND 0x8
1375 #define	ACCESS3_DELETE 0x10
1376 #define	ACCESS3_EXECUTE 0x20
1377 
1378 struct ACCESS3resok {
1379 	post_op_attr obj_attributes;
1380 	uint32 access;
1381 };
1382 typedef struct ACCESS3resok ACCESS3resok;
1383 
1384 struct ACCESS3resfail {
1385 	post_op_attr obj_attributes;
1386 };
1387 typedef struct ACCESS3resfail ACCESS3resfail;
1388 
1389 struct ACCESS3res {
1390 	nfsstat3 status;
1391 	union {
1392 		ACCESS3resok ok;
1393 		ACCESS3resfail fail;
1394 	} res_u;
1395 };
1396 typedef struct ACCESS3res ACCESS3res;
1397 
1398 struct READLINK3args {
1399 	nfs_fh3 symlink;
1400 };
1401 typedef struct READLINK3args READLINK3args;
1402 
1403 struct READLINK3resok {
1404 	post_op_attr symlink_attributes;
1405 	nfspath3 data;
1406 };
1407 typedef struct READLINK3resok READLINK3resok;
1408 
1409 struct READLINK3resfail {
1410 	post_op_attr symlink_attributes;
1411 };
1412 typedef struct READLINK3resfail READLINK3resfail;
1413 
1414 struct READLINK3res {
1415 	nfsstat3 status;
1416 	union {
1417 		READLINK3resok ok;
1418 		READLINK3resfail fail;
1419 	} res_u;
1420 };
1421 typedef struct READLINK3res READLINK3res;
1422 
1423 struct READ3args {
1424 	nfs_fh3 file;
1425 	offset3 offset;
1426 	count3 count;
1427 #ifdef _KERNEL
1428 	/* for read using rdma */
1429 	char *res_data_val_alt;
1430 	struct uio *res_uiop;
1431 	struct clist *wlist;
1432 	CONN *conn;
1433 #endif
1434 };
1435 typedef struct READ3args READ3args;
1436 
1437 struct READ3resok {
1438 	post_op_attr file_attributes;
1439 	count3 count;
1440 	bool_t eof;
1441 	struct {
1442 		uint_t data_len;
1443 		char *data_val;
1444 		mblk_t *mp;
1445 	} data;
1446 	uint_t size;
1447 #ifdef _KERNEL
1448 	uint_t wlist_len;
1449 	struct clist *wlist;
1450 #endif
1451 };
1452 typedef struct READ3resok READ3resok;
1453 
1454 struct READ3resfail {
1455 	post_op_attr file_attributes;
1456 };
1457 typedef struct READ3resfail READ3resfail;
1458 
1459 struct READ3res {
1460 	nfsstat3 status;
1461 	union {
1462 		READ3resok ok;
1463 		READ3resfail fail;
1464 	} res_u;
1465 };
1466 typedef struct READ3res READ3res;
1467 
1468 #ifdef _KERNEL
1469 /*
1470  * READ3 reply that directly decodes fattr3 directly into vattr
1471  */
1472 struct READ3vres {
1473 	nfsstat3 status;
1474 	struct post_op_vattr pov;
1475 	count3 count;
1476 	bool_t eof;
1477 	struct {
1478 		uint_t data_len;
1479 		char *data_val;
1480 	} data;
1481 	uint_t size;
1482 
1483 	uint_t wlist_len;
1484 	struct clist *wlist;
1485 };
1486 typedef struct READ3vres READ3vres;
1487 #endif /* _KERNEL */
1488 
1489 /*
1490  * READ3 reply that uiomoves data directly into a struct uio
1491  * ignores any attributes returned
1492  */
1493 struct READ3uiores {
1494 	nfsstat3 status;
1495 	count3 count;
1496 	bool_t eof;
1497 	struct uio *uiop;
1498 	uint_t size;		/* maximum reply size */
1499 #ifdef _KERNEL
1500 	uint_t wlist_len;
1501 	struct clist *wlist;
1502 #endif
1503 };
1504 typedef struct READ3uiores READ3uiores;
1505 
1506 enum stable_how {
1507 	UNSTABLE = 0,
1508 	DATA_SYNC = 1,
1509 	FILE_SYNC = 2
1510 };
1511 typedef enum stable_how stable_how;
1512 
1513 struct WRITE3args {
1514 	nfs_fh3 file;
1515 	offset3 offset;
1516 	count3 count;
1517 	stable_how stable;
1518 	struct {
1519 		uint_t data_len;
1520 		char *data_val;
1521 	} data;
1522 	mblk_t *mblk;
1523 #ifdef _KERNEL
1524 	struct clist *rlist;
1525 	CONN *conn;
1526 #endif
1527 };
1528 typedef struct WRITE3args WRITE3args;
1529 
1530 struct WRITE3resok {
1531 	wcc_data file_wcc;
1532 	count3 count;
1533 	stable_how committed;
1534 	writeverf3 verf;
1535 };
1536 typedef struct WRITE3resok WRITE3resok;
1537 
1538 struct WRITE3resfail {
1539 	wcc_data file_wcc;
1540 };
1541 typedef struct WRITE3resfail WRITE3resfail;
1542 
1543 struct WRITE3res {
1544 	nfsstat3 status;
1545 	union {
1546 		WRITE3resok ok;
1547 		WRITE3resfail fail;
1548 	} res_u;
1549 };
1550 typedef struct WRITE3res WRITE3res;
1551 
1552 enum createmode3 {
1553 	UNCHECKED = 0,
1554 	GUARDED = 1,
1555 	EXCLUSIVE = 2
1556 };
1557 typedef enum createmode3 createmode3;
1558 
1559 struct createhow3 {
1560 	createmode3 mode;
1561 	union {
1562 		sattr3 obj_attributes;
1563 		createverf3 verf;
1564 	} createhow3_u;
1565 };
1566 typedef struct createhow3 createhow3;
1567 
1568 struct CREATE3args {
1569 	diropargs3 where;
1570 	createhow3 how;
1571 };
1572 typedef struct CREATE3args CREATE3args;
1573 
1574 struct CREATE3resok {
1575 	post_op_fh3 obj;
1576 	post_op_attr obj_attributes;
1577 	wcc_data dir_wcc;
1578 };
1579 typedef struct CREATE3resok CREATE3resok;
1580 
1581 struct CREATE3resfail {
1582 	wcc_data dir_wcc;
1583 };
1584 typedef struct CREATE3resfail CREATE3resfail;
1585 
1586 struct CREATE3res {
1587 	nfsstat3 status;
1588 	union {
1589 		CREATE3resok ok;
1590 		CREATE3resfail fail;
1591 	} res_u;
1592 };
1593 typedef struct CREATE3res CREATE3res;
1594 
1595 struct MKDIR3args {
1596 	diropargs3 where;
1597 	sattr3 attributes;
1598 };
1599 typedef struct MKDIR3args MKDIR3args;
1600 
1601 struct MKDIR3resok {
1602 	post_op_fh3 obj;
1603 	post_op_attr obj_attributes;
1604 	wcc_data dir_wcc;
1605 };
1606 typedef struct MKDIR3resok MKDIR3resok;
1607 
1608 struct MKDIR3resfail {
1609 	wcc_data dir_wcc;
1610 };
1611 typedef struct MKDIR3resfail MKDIR3resfail;
1612 
1613 struct MKDIR3res {
1614 	nfsstat3 status;
1615 	union {
1616 		MKDIR3resok ok;
1617 		MKDIR3resfail fail;
1618 	} res_u;
1619 };
1620 typedef struct MKDIR3res MKDIR3res;
1621 
1622 struct symlinkdata3 {
1623 	sattr3 symlink_attributes;
1624 	nfspath3 symlink_data;
1625 };
1626 typedef struct symlinkdata3 symlinkdata3;
1627 
1628 struct SYMLINK3args {
1629 	diropargs3 where;
1630 	symlinkdata3 symlink;
1631 };
1632 typedef struct SYMLINK3args SYMLINK3args;
1633 
1634 struct SYMLINK3resok {
1635 	post_op_fh3 obj;
1636 	post_op_attr obj_attributes;
1637 	wcc_data dir_wcc;
1638 };
1639 typedef struct SYMLINK3resok SYMLINK3resok;
1640 
1641 struct SYMLINK3resfail {
1642 	wcc_data dir_wcc;
1643 };
1644 typedef struct SYMLINK3resfail SYMLINK3resfail;
1645 
1646 struct SYMLINK3res {
1647 	nfsstat3 status;
1648 	union {
1649 		SYMLINK3resok ok;
1650 		SYMLINK3resfail fail;
1651 	} res_u;
1652 };
1653 typedef struct SYMLINK3res SYMLINK3res;
1654 
1655 struct devicedata3 {
1656 	sattr3 dev_attributes;
1657 	specdata3 spec;
1658 };
1659 typedef struct devicedata3 devicedata3;
1660 
1661 struct mknoddata3 {
1662 	ftype3 type;
1663 	union {
1664 		devicedata3 device;
1665 		sattr3 pipe_attributes;
1666 	} mknoddata3_u;
1667 };
1668 typedef struct mknoddata3 mknoddata3;
1669 
1670 struct MKNOD3args {
1671 	diropargs3 where;
1672 	mknoddata3 what;
1673 };
1674 typedef struct MKNOD3args MKNOD3args;
1675 
1676 struct MKNOD3resok {
1677 	post_op_fh3 obj;
1678 	post_op_attr obj_attributes;
1679 	wcc_data dir_wcc;
1680 };
1681 typedef struct MKNOD3resok MKNOD3resok;
1682 
1683 struct MKNOD3resfail {
1684 	wcc_data dir_wcc;
1685 };
1686 typedef struct MKNOD3resfail MKNOD3resfail;
1687 
1688 struct MKNOD3res {
1689 	nfsstat3 status;
1690 	union {
1691 		MKNOD3resok ok;
1692 		MKNOD3resfail fail;
1693 	} res_u;
1694 };
1695 typedef struct MKNOD3res MKNOD3res;
1696 
1697 struct REMOVE3args {
1698 	diropargs3 object;
1699 };
1700 typedef struct REMOVE3args REMOVE3args;
1701 
1702 struct REMOVE3resok {
1703 	wcc_data dir_wcc;
1704 };
1705 typedef struct REMOVE3resok REMOVE3resok;
1706 
1707 struct REMOVE3resfail {
1708 	wcc_data dir_wcc;
1709 };
1710 typedef struct REMOVE3resfail REMOVE3resfail;
1711 
1712 struct REMOVE3res {
1713 	nfsstat3 status;
1714 	union {
1715 		REMOVE3resok ok;
1716 		REMOVE3resfail fail;
1717 	} res_u;
1718 };
1719 typedef struct REMOVE3res REMOVE3res;
1720 
1721 struct RMDIR3args {
1722 	diropargs3 object;
1723 };
1724 typedef struct RMDIR3args RMDIR3args;
1725 
1726 struct RMDIR3resok {
1727 	wcc_data dir_wcc;
1728 };
1729 typedef struct RMDIR3resok RMDIR3resok;
1730 
1731 struct RMDIR3resfail {
1732 	wcc_data dir_wcc;
1733 };
1734 typedef struct RMDIR3resfail RMDIR3resfail;
1735 
1736 struct RMDIR3res {
1737 	nfsstat3 status;
1738 	union {
1739 		RMDIR3resok ok;
1740 		RMDIR3resfail fail;
1741 	} res_u;
1742 };
1743 typedef struct RMDIR3res RMDIR3res;
1744 
1745 struct RENAME3args {
1746 	diropargs3 from;
1747 	diropargs3 to;
1748 };
1749 typedef struct RENAME3args RENAME3args;
1750 
1751 struct RENAME3resok {
1752 	wcc_data fromdir_wcc;
1753 	wcc_data todir_wcc;
1754 };
1755 typedef struct RENAME3resok RENAME3resok;
1756 
1757 struct RENAME3resfail {
1758 	wcc_data fromdir_wcc;
1759 	wcc_data todir_wcc;
1760 };
1761 typedef struct RENAME3resfail RENAME3resfail;
1762 
1763 struct RENAME3res {
1764 	nfsstat3 status;
1765 	union {
1766 		RENAME3resok ok;
1767 		RENAME3resfail fail;
1768 	} res_u;
1769 };
1770 typedef struct RENAME3res RENAME3res;
1771 
1772 struct LINK3args {
1773 	nfs_fh3 file;
1774 	diropargs3 link;
1775 };
1776 typedef struct LINK3args LINK3args;
1777 
1778 struct LINK3resok {
1779 	post_op_attr file_attributes;
1780 	wcc_data linkdir_wcc;
1781 };
1782 typedef struct LINK3resok LINK3resok;
1783 
1784 struct LINK3resfail {
1785 	post_op_attr file_attributes;
1786 	wcc_data linkdir_wcc;
1787 };
1788 typedef struct LINK3resfail LINK3resfail;
1789 
1790 struct LINK3res {
1791 	nfsstat3 status;
1792 	union {
1793 		LINK3resok ok;
1794 		LINK3resfail fail;
1795 	} res_u;
1796 };
1797 typedef struct LINK3res LINK3res;
1798 
1799 struct READDIR3args {
1800 	nfs_fh3 dir;
1801 	cookie3 cookie;
1802 	cookieverf3 cookieverf;
1803 	count3 count;
1804 };
1805 typedef struct READDIR3args READDIR3args;
1806 
1807 struct entry3 {
1808 	fileid3 fileid;
1809 	filename3 name;
1810 	cookie3 cookie;
1811 	struct entry3 *nextentry;
1812 };
1813 typedef struct entry3 entry3;
1814 
1815 struct dirlist3 {
1816 	entry3 *entries;
1817 	bool_t eof;
1818 };
1819 typedef struct dirlist3 dirlist3;
1820 
1821 struct READDIR3resok {
1822 	post_op_attr dir_attributes;
1823 	cookieverf3 cookieverf;
1824 	dirlist3 reply;
1825 	uint_t size;
1826 	uint_t count;
1827 	uint_t freecount;
1828 	cookie3 cookie;
1829 };
1830 typedef struct READDIR3resok READDIR3resok;
1831 
1832 struct READDIR3resfail {
1833 	post_op_attr dir_attributes;
1834 };
1835 typedef struct READDIR3resfail READDIR3resfail;
1836 
1837 struct READDIR3res {
1838 	nfsstat3 status;
1839 	union {
1840 		READDIR3resok ok;
1841 		READDIR3resfail fail;
1842 	} res_u;
1843 };
1844 typedef struct READDIR3res READDIR3res;
1845 
1846 #ifdef _KERNEL
1847 struct READDIR3vres {
1848 	nfsstat3 status;
1849 	post_op_vattr dir_attributes;
1850 	cookieverf3 cookieverf;
1851 	dirent64_t *entries;			/* decoded dirent64s */
1852 	uint_t size;				/* actual size of entries */
1853 	uint_t entries_size;			/* max size of entries */
1854 	off64_t loff;				/* last offset/cookie */
1855 	bool_t eof;				/* End of directory */
1856 };
1857 typedef struct READDIR3vres READDIR3vres;
1858 #endif /* _KERNEL */
1859 
1860 struct READDIRPLUS3args {
1861 	nfs_fh3 dir;
1862 	cookie3 cookie;
1863 	cookieverf3 cookieverf;
1864 	count3 dircount;
1865 	count3 maxcount;
1866 };
1867 typedef struct READDIRPLUS3args READDIRPLUS3args;
1868 
1869 struct entryplus3 {
1870 	fileid3 fileid;
1871 	filename3 name;
1872 	cookie3 cookie;
1873 	post_op_attr name_attributes;
1874 	post_op_fh3 name_handle;
1875 	struct entryplus3 *nextentry;
1876 };
1877 typedef struct entryplus3 entryplus3;
1878 
1879 struct dirlistplus3 {
1880 	entryplus3 *entries;
1881 	bool_t eof;
1882 };
1883 typedef struct dirlistplus3 dirlistplus3;
1884 
1885 struct entryplus3_info {
1886 	post_op_attr attr;
1887 	post_op_fh3 fh;
1888 	uint_t namelen;
1889 };
1890 typedef struct entryplus3_info entryplus3_info;
1891 
1892 struct READDIRPLUS3resok {
1893 	post_op_attr dir_attributes;
1894 	cookieverf3 cookieverf;
1895 	dirlistplus3 reply;
1896 	uint_t size;
1897 	uint_t count;
1898 	uint_t maxcount;
1899 	entryplus3_info *infop;
1900 };
1901 typedef struct READDIRPLUS3resok READDIRPLUS3resok;
1902 
1903 struct READDIRPLUS3resfail {
1904 	post_op_attr dir_attributes;
1905 };
1906 typedef struct READDIRPLUS3resfail READDIRPLUS3resfail;
1907 
1908 struct READDIRPLUS3res {
1909 	nfsstat3 status;
1910 	union {
1911 		READDIRPLUS3resok ok;
1912 		READDIRPLUS3resfail fail;
1913 	} res_u;
1914 };
1915 typedef struct READDIRPLUS3res READDIRPLUS3res;
1916 
1917 #ifdef _KERNEL
1918 struct entryplus3_va_fh {
1919 	int va_valid;
1920 	int fh_valid;
1921 	vattr_t va;
1922 	nfs_fh3 fh;
1923 	char *d_name;		/* back pointer into entries */
1924 };
1925 
1926 struct READDIRPLUS3vres {
1927 	nfsstat3 status;
1928 	post_op_vattr dir_attributes;
1929 	cookieverf3 cookieverf;
1930 	dirent64_t *entries;			/* decoded dirent64s */
1931 	uint_t size;				/* actual size of entries */
1932 	uint_t entries_size;			/* max size of entries */
1933 	bool_t eof;				/* End of directory */
1934 	off64_t loff;				/* last offset/cookie */
1935 	cred_t *credentials;			/* caller's credentials */
1936 	hrtime_t time;				/* time of READDIRPLUS call */
1937 };
1938 typedef struct READDIRPLUS3vres READDIRPLUS3vres;
1939 #endif /* _KERNEL */
1940 
1941 struct FSSTAT3args {
1942 	nfs_fh3 fsroot;
1943 };
1944 typedef struct FSSTAT3args FSSTAT3args;
1945 
1946 struct FSSTAT3resok {
1947 	post_op_attr obj_attributes;
1948 	size3 tbytes;
1949 	size3 fbytes;
1950 	size3 abytes;
1951 	size3 tfiles;
1952 	size3 ffiles;
1953 	size3 afiles;
1954 	uint32 invarsec;
1955 };
1956 typedef struct FSSTAT3resok FSSTAT3resok;
1957 
1958 struct FSSTAT3resfail {
1959 	post_op_attr obj_attributes;
1960 };
1961 typedef struct FSSTAT3resfail FSSTAT3resfail;
1962 
1963 struct FSSTAT3res {
1964 	nfsstat3 status;
1965 	union {
1966 		FSSTAT3resok ok;
1967 		FSSTAT3resfail fail;
1968 	} res_u;
1969 };
1970 typedef struct FSSTAT3res FSSTAT3res;
1971 
1972 struct FSINFO3args {
1973 	nfs_fh3 fsroot;
1974 };
1975 typedef struct FSINFO3args FSINFO3args;
1976 
1977 struct FSINFO3resok {
1978 	post_op_attr obj_attributes;
1979 	uint32 rtmax;
1980 	uint32 rtpref;
1981 	uint32 rtmult;
1982 	uint32 wtmax;
1983 	uint32 wtpref;
1984 	uint32 wtmult;
1985 	uint32 dtpref;
1986 	size3 maxfilesize;
1987 	nfstime3 time_delta;
1988 	uint32 properties;
1989 };
1990 typedef struct FSINFO3resok FSINFO3resok;
1991 
1992 struct FSINFO3resfail {
1993 	post_op_attr obj_attributes;
1994 };
1995 typedef struct FSINFO3resfail FSINFO3resfail;
1996 #define	FSF3_LINK 0x1
1997 #define	FSF3_SYMLINK 0x2
1998 #define	FSF3_HOMOGENEOUS 0x8
1999 #define	FSF3_CANSETTIME 0x10
2000 
2001 struct FSINFO3res {
2002 	nfsstat3 status;
2003 	union {
2004 		FSINFO3resok ok;
2005 		FSINFO3resfail fail;
2006 	} res_u;
2007 };
2008 typedef struct FSINFO3res FSINFO3res;
2009 
2010 struct PATHCONF3args {
2011 	nfs_fh3 object;
2012 };
2013 typedef struct PATHCONF3args PATHCONF3args;
2014 
2015 struct nfs3_pathconf_info {
2016 	uint32 link_max;
2017 	uint32 name_max;
2018 	bool_t no_trunc;
2019 	bool_t chown_restricted;
2020 	bool_t case_insensitive;
2021 	bool_t case_preserving;
2022 };
2023 typedef struct nfs3_pathconf_info nfs3_pathconf_info;
2024 
2025 struct PATHCONF3resok {
2026 	post_op_attr obj_attributes;
2027 	nfs3_pathconf_info info;
2028 };
2029 typedef struct PATHCONF3resok PATHCONF3resok;
2030 
2031 struct PATHCONF3resfail {
2032 	post_op_attr obj_attributes;
2033 };
2034 typedef struct PATHCONF3resfail PATHCONF3resfail;
2035 
2036 struct PATHCONF3res {
2037 	nfsstat3 status;
2038 	union {
2039 		PATHCONF3resok ok;
2040 		PATHCONF3resfail fail;
2041 	} res_u;
2042 };
2043 typedef struct PATHCONF3res PATHCONF3res;
2044 
2045 struct COMMIT3args {
2046 	nfs_fh3 file;
2047 	offset3 offset;
2048 	count3 count;
2049 };
2050 typedef struct COMMIT3args COMMIT3args;
2051 
2052 struct COMMIT3resok {
2053 	wcc_data file_wcc;
2054 	writeverf3 verf;
2055 };
2056 typedef struct COMMIT3resok COMMIT3resok;
2057 
2058 struct COMMIT3resfail {
2059 	wcc_data file_wcc;
2060 };
2061 typedef struct COMMIT3resfail COMMIT3resfail;
2062 
2063 struct COMMIT3res {
2064 	nfsstat3 status;
2065 	union {
2066 		COMMIT3resok ok;
2067 		COMMIT3resfail fail;
2068 	} res_u;
2069 };
2070 typedef struct COMMIT3res COMMIT3res;
2071 
2072 #define	NFS3_PROGRAM ((rpcprog_t)100003)
2073 #define	NFS_V3 ((rpcvers_t)3)
2074 #define	NFSPROC3_NULL ((rpcproc_t)0)
2075 #define	NFSPROC3_GETATTR ((rpcproc_t)1)
2076 #define	NFSPROC3_SETATTR ((rpcproc_t)2)
2077 #define	NFSPROC3_LOOKUP ((rpcproc_t)3)
2078 #define	NFSPROC3_ACCESS ((rpcproc_t)4)
2079 #define	NFSPROC3_READLINK ((rpcproc_t)5)
2080 #define	NFSPROC3_READ ((rpcproc_t)6)
2081 #define	NFSPROC3_WRITE ((rpcproc_t)7)
2082 #define	NFSPROC3_CREATE ((rpcproc_t)8)
2083 #define	NFSPROC3_MKDIR ((rpcproc_t)9)
2084 #define	NFSPROC3_SYMLINK ((rpcproc_t)10)
2085 #define	NFSPROC3_MKNOD ((rpcproc_t)11)
2086 #define	NFSPROC3_REMOVE ((rpcproc_t)12)
2087 #define	NFSPROC3_RMDIR ((rpcproc_t)13)
2088 #define	NFSPROC3_RENAME ((rpcproc_t)14)
2089 #define	NFSPROC3_LINK ((rpcproc_t)15)
2090 #define	NFSPROC3_READDIR ((rpcproc_t)16)
2091 #define	NFSPROC3_READDIRPLUS ((rpcproc_t)17)
2092 #define	NFSPROC3_FSSTAT ((rpcproc_t)18)
2093 #define	NFSPROC3_FSINFO ((rpcproc_t)19)
2094 #define	NFSPROC3_PATHCONF ((rpcproc_t)20)
2095 #define	NFSPROC3_COMMIT ((rpcproc_t)21)
2096 
2097 #ifndef _KERNEL
2098 extern  void * nfsproc3_null_3();
2099 extern  GETATTR3res * nfsproc3_getattr_3();
2100 extern  SETATTR3res * nfsproc3_setattr_3();
2101 extern  LOOKUP3res * nfsproc3_lookup_3();
2102 extern  ACCESS3res * nfsproc3_access_3();
2103 extern  READLINK3res * nfsproc3_readlink_3();
2104 extern  READ3res * nfsproc3_read_3();
2105 extern  WRITE3res * nfsproc3_write_3();
2106 extern  CREATE3res * nfsproc3_create_3();
2107 extern  MKDIR3res * nfsproc3_mkdir_3();
2108 extern  SYMLINK3res * nfsproc3_symlink_3();
2109 extern  MKNOD3res * nfsproc3_mknod_3();
2110 extern  REMOVE3res * nfsproc3_remove_3();
2111 extern  RMDIR3res * nfsproc3_rmdir_3();
2112 extern  RENAME3res * nfsproc3_rename_3();
2113 extern  LINK3res * nfsproc3_link_3();
2114 extern  READDIR3res * nfsproc3_readdir_3();
2115 extern  READDIRPLUS3res * nfsproc3_readdirplus_3();
2116 extern  FSSTAT3res * nfsproc3_fsstat_3();
2117 extern  FSINFO3res * nfsproc3_fsinfo_3();
2118 extern  PATHCONF3res * nfsproc3_pathconf_3();
2119 extern  COMMIT3res * nfsproc3_commit_3();
2120 #endif	/* !_KERNEL */
2121 
2122 #ifdef _KERNEL
2123 /* the NFS Version 3 XDR functions */
2124 
2125 extern bool_t xdr_nfs_fh3(XDR *, nfs_fh3 *);
2126 extern bool_t xdr_nfslog_nfs_fh3(XDR *, nfs_fh3 *);
2127 extern bool_t xdr_nfs_fh3_server(XDR *, nfs_fh3 *);
2128 extern bool_t xdr_diropargs3(XDR *, diropargs3 *);
2129 extern bool_t xdr_post_op_attr(XDR *, post_op_attr *);
2130 extern bool_t xdr_post_op_fh3(XDR *, post_op_fh3 *);
2131 extern bool_t xdr_GETATTR3res(XDR *, GETATTR3res *);
2132 extern bool_t xdr_GETATTR3vres(XDR *, GETATTR3vres *);
2133 extern bool_t xdr_SETATTR3args(XDR *, SETATTR3args *);
2134 extern bool_t xdr_SETATTR3res(XDR *, SETATTR3res *);
2135 extern bool_t xdr_LOOKUP3res(XDR *, LOOKUP3res *);
2136 extern bool_t xdr_LOOKUP3vres(XDR *, LOOKUP3vres *);
2137 extern bool_t xdr_ACCESS3args(XDR *, ACCESS3args *);
2138 extern bool_t xdr_ACCESS3res(XDR *, ACCESS3res *);
2139 extern bool_t xdr_READLINK3args(XDR *, READLINK3args *);
2140 extern bool_t xdr_READLINK3res(XDR *, READLINK3res *);
2141 extern bool_t xdr_READ3args(XDR *, READ3args *);
2142 extern bool_t xdr_READ3res(XDR *, READ3res *);
2143 extern bool_t xdr_READ3vres(XDR *, READ3vres *);
2144 extern bool_t xdr_READ3uiores(XDR *, READ3uiores *);
2145 extern bool_t xdr_WRITE3args(XDR *, WRITE3args *);
2146 extern bool_t xdr_WRITE3res(XDR *, WRITE3res *);
2147 extern bool_t xdr_CREATE3args(XDR *, CREATE3args *);
2148 extern bool_t xdr_CREATE3res(XDR *, CREATE3res *);
2149 extern bool_t xdr_MKDIR3args(XDR *, MKDIR3args *);
2150 extern bool_t xdr_MKDIR3res(XDR *, MKDIR3res *);
2151 extern bool_t xdr_SYMLINK3args(XDR *, SYMLINK3args *);
2152 extern bool_t xdr_SYMLINK3res(XDR *, SYMLINK3res *);
2153 extern bool_t xdr_MKNOD3args(XDR *, MKNOD3args *);
2154 extern bool_t xdr_MKNOD3res(XDR *, MKNOD3res *);
2155 extern bool_t xdr_REMOVE3res(XDR *, REMOVE3res *);
2156 extern bool_t xdr_RMDIR3resfail(XDR *, RMDIR3resfail *);
2157 extern bool_t xdr_RMDIR3res(XDR *, RMDIR3res *);
2158 extern bool_t xdr_RENAME3args(XDR *, RENAME3args *);
2159 extern bool_t xdr_RENAME3res(XDR *, RENAME3res *);
2160 extern bool_t xdr_LINK3args(XDR *, LINK3args *);
2161 extern bool_t xdr_LINK3res(XDR *, LINK3res *);
2162 extern bool_t xdr_READDIR3args(XDR *, READDIR3args *);
2163 extern bool_t xdr_READDIR3res(XDR *, READDIR3res *);
2164 extern bool_t xdr_READDIR3vres(XDR *, READDIR3vres *);
2165 extern bool_t xdr_READDIRPLUS3args(XDR *, READDIRPLUS3args *);
2166 extern bool_t xdr_READDIRPLUS3res(XDR *, READDIRPLUS3res *);
2167 extern bool_t xdr_READDIRPLUS3vres(XDR *, READDIRPLUS3vres *);
2168 extern bool_t xdr_FSSTAT3res(XDR *, FSSTAT3res *);
2169 extern bool_t xdr_FSINFO3res(XDR *, FSINFO3res *);
2170 extern bool_t xdr_PATHCONF3res(XDR *, PATHCONF3res *);
2171 extern bool_t xdr_COMMIT3args(XDR *, COMMIT3args *);
2172 extern bool_t xdr_COMMIT3res(XDR *, COMMIT3res *);
2173 extern bool_t xdr_fastnfs_fh3(XDR *, nfs_fh3 **);
2174 
2175 /*
2176  * The NFS Version 3 service procedures.
2177  */
2178 struct exportinfo;	/* defined in nfs/export.h */
2179 struct servinfo;	/* defined in nfs/nfs_clnt.h */
2180 struct mntinfo;		/* defined in nfs/nfs_clnt.h */
2181 struct sec_ol;		/* defined in nfs/export.h */
2182 
2183 extern void rfs3_getattr(GETATTR3args *, GETATTR3res *,
2184 			struct exportinfo *, struct svc_req *, cred_t *);
2185 extern void *rfs3_getattr_getfh(GETATTR3args *);
2186 extern void rfs3_setattr(SETATTR3args *, SETATTR3res *,
2187 			struct exportinfo *, struct svc_req *, cred_t *);
2188 extern void *rfs3_setattr_getfh(SETATTR3args *);
2189 extern void rfs3_lookup(LOOKUP3args *, LOOKUP3res *,
2190 			struct exportinfo *, struct svc_req *, cred_t *);
2191 extern void *rfs3_lookup_getfh(LOOKUP3args *);
2192 extern void rfs3_access(ACCESS3args *, ACCESS3res *,
2193 			struct exportinfo *, struct svc_req *, cred_t *);
2194 extern void *rfs3_access_getfh(ACCESS3args *);
2195 extern void rfs3_readlink(READLINK3args *, READLINK3res *,
2196 			struct exportinfo *, struct svc_req *, cred_t *);
2197 extern void *rfs3_readlink_getfh(READLINK3args *);
2198 extern void rfs3_readlink_free(READLINK3res *);
2199 extern void rfs3_read(READ3args *, READ3res *,
2200 			struct exportinfo *, struct svc_req *, cred_t *);
2201 extern void *rfs3_read_getfh(READ3args *);
2202 extern void rfs3_read_free(READ3res *);
2203 extern void rfs3_write(WRITE3args *, WRITE3res *,
2204 			struct exportinfo *, struct svc_req *, cred_t *);
2205 extern void *rfs3_write_getfh(WRITE3args *);
2206 extern void rfs3_create(CREATE3args *, CREATE3res *,
2207 			struct exportinfo *, struct svc_req *, cred_t *);
2208 extern void *rfs3_create_getfh(CREATE3args *);
2209 extern void rfs3_mkdir(MKDIR3args *, MKDIR3res *,
2210 			struct exportinfo *, struct svc_req *, cred_t *);
2211 extern void *rfs3_mkdir_getfh(MKDIR3args *);
2212 extern void rfs3_symlink(SYMLINK3args *, SYMLINK3res *,
2213 			struct exportinfo *, struct svc_req *, cred_t *);
2214 extern void *rfs3_symlink_getfh(SYMLINK3args *);
2215 extern void rfs3_mknod(MKNOD3args *, MKNOD3res *,
2216 			struct exportinfo *, struct svc_req *, cred_t *);
2217 extern void *rfs3_mknod_getfh(MKNOD3args *);
2218 extern void rfs3_remove(REMOVE3args *, REMOVE3res *,
2219 			struct exportinfo *, struct svc_req *, cred_t *);
2220 extern void *rfs3_remove_getfh(REMOVE3args *);
2221 extern void rfs3_rmdir(RMDIR3args *, RMDIR3res *,
2222 			struct exportinfo *, struct svc_req *, cred_t *);
2223 extern void *rfs3_rmdir_getfh(RMDIR3args *);
2224 extern void rfs3_rename(RENAME3args *, RENAME3res *,
2225 			struct exportinfo *, struct svc_req *, cred_t *);
2226 extern void *rfs3_rename_getfh(RENAME3args *);
2227 extern void rfs3_link(LINK3args *, LINK3res *,
2228 			struct exportinfo *, struct svc_req *, cred_t *);
2229 extern void *rfs3_link_getfh(LINK3args *);
2230 extern void rfs3_readdir(READDIR3args *, READDIR3res *,
2231 			struct exportinfo *, struct svc_req *, cred_t *);
2232 extern void *rfs3_readdir_getfh(READDIR3args *);
2233 extern void rfs3_readdir_free(READDIR3res *);
2234 extern void rfs3_readdirplus(READDIRPLUS3args *, READDIRPLUS3res *,
2235 			struct exportinfo *, struct svc_req *, cred_t *);
2236 extern void *rfs3_readdirplus_getfh(READDIRPLUS3args *);
2237 extern void rfs3_readdirplus_free(READDIRPLUS3res *);
2238 extern void rfs3_fsstat(FSSTAT3args *, FSSTAT3res *,
2239 			struct exportinfo *, struct svc_req *, cred_t *);
2240 extern void *rfs3_fsstat_getfh(FSSTAT3args *);
2241 extern void rfs3_fsinfo(FSINFO3args *, FSINFO3res *,
2242 			struct exportinfo *, struct svc_req *, cred_t *);
2243 extern void *rfs3_fsinfo_getfh(FSINFO3args *);
2244 extern void rfs3_pathconf(PATHCONF3args *, PATHCONF3res *,
2245 			struct exportinfo *, struct svc_req *, cred_t *);
2246 extern void *rfs3_pathconf_getfh(PATHCONF3args *);
2247 extern void rfs3_commit(COMMIT3args *, COMMIT3res *,
2248 			struct exportinfo *, struct svc_req *, cred_t *);
2249 extern void *rfs3_commit_getfh(COMMIT3args *);
2250 extern void rfs3_srvrinit(void);
2251 extern void rfs3_srvrfini(void);
2252 
2253 extern int	nfs3_validate_caches(vnode_t *, cred_t *);
2254 extern void	nfs3_cache_post_op_attr(vnode_t *, post_op_attr *, hrtime_t,
2255 			cred_t *);
2256 extern void	nfs3_cache_post_op_vattr(vnode_t *, post_op_vattr *, hrtime_t,
2257 			cred_t *);
2258 extern void	nfs3_cache_wcc_data(vnode_t *, wcc_data *, hrtime_t, cred_t *);
2259 extern void	nfs3_attrcache(vnode_t *, fattr3 *, hrtime_t);
2260 extern int	nfs3_cache_fattr3(vnode_t *, fattr3 *, vattr_t *, hrtime_t,
2261 			cred_t *);
2262 extern int	nfs3_getattr_otw(vnode_t *, struct vattr *, cred_t *);
2263 extern int	nfs3getattr(vnode_t *, struct vattr *, cred_t *);
2264 extern int	fattr3_to_vattr(vnode_t *, fattr3 *, struct vattr *);
2265 extern int	nfs3tsize(void);
2266 extern uint_t	nfs3_tsize(struct knetconfig *);
2267 extern uint_t	rfs3_tsize(struct svc_req *);
2268 extern int	vattr_to_sattr3(struct vattr *, sattr3 *);
2269 extern void	setdiropargs3(diropargs3 *, char *, vnode_t *);
2270 extern enum nfsstat3 puterrno3(int);
2271 extern int	geterrno3(enum nfsstat3);
2272 extern int	nfs3init(int, char *);
2273 extern void	nfs3fini(void);
2274 extern int	nfs3_vfsinit(void);
2275 extern void	nfs3_vfsfini(void);
2276 extern void	vattr_to_post_op_attr(struct vattr *, post_op_attr *);
2277 extern void	mblk_to_iov(mblk_t *, int, struct iovec *);
2278 extern int	rfs_publicfh_mclookup(char *, vnode_t *, cred_t *,
2279 			vnode_t **, struct exportinfo **, struct sec_ol *);
2280 extern int	rfs_pathname(char *, vnode_t **, vnode_t **,
2281 			vnode_t *, cred_t *, int);
2282 extern vtype_t		nf3_to_vt[];
2283 extern kstat_named_t	*rfsproccnt_v3_ptr;
2284 extern vfsops_t		*nfs3_vfsops;
2285 extern struct vnodeops	*nfs3_vnodeops;
2286 extern const struct fs_operation_def nfs3_vnodeops_template[];
2287 #ifdef DEBUG
2288 extern int		rfs3_do_pre_op_attr;
2289 extern int		rfs3_do_post_op_attr;
2290 extern int		rfs3_do_post_op_fh3;
2291 #endif
2292 /*
2293  * Some servers do not properly update the attributes of the
2294  * directory when changes are made.  To allow interoperability
2295  * with these broken servers, the nfs_disable_rddir_cache
2296  * parameter can be used to disable readdir response caching.
2297  */
2298 extern int		nfs_disable_rddir_cache;
2299 
2300 /*
2301  * External functions called by the v2/v3 code into the v4 code
2302  */
2303 extern void		nfs4_clnt_init(void);
2304 extern void		nfs4_clnt_fini(void);
2305 
2306 /*
2307  * Does NFS4 server have a vnode delegated?  TRUE if so, FALSE if not.
2308  */
2309 extern bool_t rfs4_check_delegated(int mode, vnode_t *, bool_t trunc);
2310 /*
2311  * VOP_GETATTR call. If a NFS4 delegation is present on the supplied vnode
2312  * call back to the delegated client to get attributes for AT_MTIME and
2313  * AT_SIZE. Invoke VOP_GETATTR to get all other attributes or all attributes
2314  * if no delegation is present.
2315  */
2316 extern int rfs4_delegated_getattr(vnode_t *, vattr_t *, int, cred_t *);
2317 extern void rfs4_hold_deleg_policy(void);
2318 extern void rfs4_rele_deleg_policy(void);
2319 
2320 extern int do_xattr_exists_check(vnode_t *, ulong_t *, cred_t *);
2321 
2322 extern ts_label_t	*nfs_getflabel(vnode_t *, struct exportinfo *);
2323 extern boolean_t	do_rfs_label_check(bslabel_t *, vnode_t *, int,
2324 			    struct exportinfo *);
2325 #endif	/* _KERNEL */
2326 
2327 #ifdef	__cplusplus
2328 }
2329 #endif
2330 
2331 #endif	/* _NFS_NFS_H */
2332