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 /*
  23  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
  24  */
  25 
  26 /*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
  27 /*        All Rights Reserved   */
  28 
  29 /*
  30  * Copyright 2018 Nexenta Systems, Inc.
  31  * Copyright (c) 2013 by Delphix. All rights reserved.
  32  */
  33 
  34 #ifndef _NFS_NFS_H
  35 #define _NFS_NFS_H
  36 
  37 #include <sys/isa_defs.h>
  38 #include <sys/vfs.h>
  39 #include <sys/stream.h>
  40 #include <rpc/types.h>
  41 #include <sys/types32.h>
  42 #ifdef _KERNEL
  43 #include <rpc/rpc_rdma.h>
  44 #include <rpc/rpc.h>
  45 #include <sys/fcntl.h>
  46 #include <sys/kstat.h>
  47 #include <sys/dirent.h>
  48 #include <sys/zone.h>
  49 #include <sys/tsol/label.h>
  50 #include <sys/nvpair.h>
  51 #include <nfs/mount.h>
  52 #include <sys/vfs_opreg.h>
  53 #endif
  54 #include <vm/page.h>
  55 #include <rpc/rpc_sztypes.h>
  56 #include <sys/sysmacros.h>
  57 #ifdef  __cplusplus
  58 extern "C" {
  59 #endif
  60 
  61 /*
  62  * remote file service numbers
  63  */
  64 #define NFS_PROGRAM     ((rpcprog_t)100003)
  65 #define NFS_VERSMIN     ((rpcvers_t)2)
  66 #define NFS_VERSMAX     ((rpcvers_t)4)
  67 #define NFS_VERSION     ((rpcvers_t)2)
  68 #define NFS_PORT        2049
  69 
  70 /*
  71  * Used to determine registration and service handling of versions
  72  */
  73 #define NFS_VERSMIN_DEFAULT     ((rpcvers_t)2)
  74 #define NFS_VERSMAX_DEFAULT     ((rpcvers_t)4)
  75 
  76 /*
  77  * Used to track the state of the server so that initialization
  78  * can be done properly.
  79  */
  80 typedef enum {
  81         NFS_SERVER_STOPPED,     /* server state destroyed */
  82         NFS_SERVER_STOPPING,    /* server state being destroyed */
  83         NFS_SERVER_RUNNING,
  84         NFS_SERVER_QUIESCED,    /* server state preserved */
  85         NFS_SERVER_OFFLINE      /* server pool offline */
  86 } nfs_server_running_t;
  87 
  88 /*
  89  * Zone globals variables of NFS server
  90  */
  91 typedef struct nfs_globals {
  92         rpcvers_t               nfs_versmin;
  93         rpcvers_t               nfs_versmax;
  94 
  95         /* NFS server locks and state */
  96         nfs_server_running_t    nfs_server_upordown;
  97         kmutex_t                nfs_server_upordown_lock;
  98         kcondvar_t              nfs_server_upordown_cv;
  99 
 100         /* RDMA wait variables */
 101         kcondvar_t              rdma_wait_cv;
 102         kmutex_t                rdma_wait_mutex;
 103 } nfs_globals_t;
 104 
 105 /*
 106  * Default delegation setting for the server ==> "on"
 107  */
 108 #define NFS_SERVER_DELEGATION_DEFAULT   (TRUE)
 109 
 110 /* Maximum size of data portion of a remote request */
 111 #define NFS_MAXDATA     8192
 112 #define NFS_MAXNAMLEN   255
 113 #define NFS_MAXPATHLEN  1024
 114 
 115 /*
 116  * Rpc retransmission parameters
 117  */
 118 #define NFS_TIMEO       11      /* initial timeout for clts in 10th of a sec */
 119 #define NFS_RETRIES     5       /* times to retry request */
 120 #define NFS_COTS_TIMEO  600     /* initial timeout for cots in 10th of a sec */
 121 
 122 /*
 123  * The value of UID_NOBODY/GID_NOBODY presented to the world via NFS.
 124  * UID_NOBODY/GID_NOBODY is translated to NFS_UID_NOBODY/NFS_GID_NOBODY
 125  * when being sent out over the network and NFS_UID_NOBODY/NFS_GID_NOBODY
 126  * is translated to UID_NOBODY/GID_NOBODY when received.
 127  */
 128 #define NFS_UID_NOBODY  -2
 129 #define NFS_GID_NOBODY  -2
 130 
 131 /*
 132  * maximum transfer size for different interfaces
 133  */
 134 #define ECTSIZE 2048
 135 #define IETSIZE 8192
 136 
 137 /*
 138  * WebNFS error status
 139  */
 140 enum wnfsstat {
 141         WNFSERR_CLNT_FLAVOR = 20001     /* invalid client sec flavor */
 142 };
 143 
 144 /*
 145  * Error status
 146  * Should include all possible net errors.
 147  * For now we just cast errno into an enum nfsstat.
 148  */
 149 enum nfsstat {
 150         NFS_OK = 0,                     /* no error */
 151         NFSERR_PERM = 1,                /* Not owner */
 152         NFSERR_NOENT = 2,               /* No such file or directory */
 153         NFSERR_IO = 5,                  /* I/O error */
 154         NFSERR_NXIO = 6,                /* No such device or address */
 155         NFSERR_ACCES = 13,              /* Permission denied */
 156         NFSERR_EXIST = 17,              /* File exists */
 157         NFSERR_XDEV = 18,               /* Cross-device link */
 158         NFSERR_NODEV = 19,              /* No such device */
 159         NFSERR_NOTDIR = 20,             /* Not a directory */
 160         NFSERR_ISDIR = 21,              /* Is a directory */
 161         NFSERR_INVAL = 22,              /* Invalid argument */
 162         NFSERR_FBIG = 27,               /* File too large */
 163         NFSERR_NOSPC = 28,              /* No space left on device */
 164         NFSERR_ROFS = 30,               /* Read-only file system */
 165         NFSERR_OPNOTSUPP = 45,          /* Operation not supported */
 166         NFSERR_NAMETOOLONG = 63,        /* File name too long */
 167         NFSERR_NOTEMPTY = 66,           /* Directory not empty */
 168         NFSERR_DQUOT = 69,              /* Disc quota exceeded */
 169         NFSERR_STALE = 70,              /* Stale NFS file handle */
 170         NFSERR_REMOTE = 71,             /* Object is remote */
 171         NFSERR_WFLUSH = 99              /* write cache flushed */
 172 };
 173 
 174 typedef enum nfsstat nfsstat;
 175 
 176 /*
 177  * File types
 178  */
 179 enum nfsftype {
 180         NFNON,
 181         NFREG,          /* regular file */
 182         NFDIR,          /* directory */
 183         NFBLK,          /* block special */
 184         NFCHR,          /* character special */
 185         NFLNK,          /* symbolic link */
 186         NFSOC           /* socket */
 187 };
 188 
 189 /*
 190  * Macros for converting device numbers to and from the format
 191  * SunOS 4.x used. SVR4 uses 14 bit majors and 18 bits minors,
 192  * SunOS 4.x used 8 bit majors and 8 bit minors. It isn't sufficient
 193  * to use the cmpdev() and expdev() macros because they only compress
 194  * 7 bit (and smaller) majors. We must compress 8 bit majors too.
 195  * If the major or minor exceeds 8 bits, then we send it out in
 196  * full 32 bit format and hope that the peer can deal with it.
 197  */
 198 
 199 #define SO4_BITSMAJOR   8       /* # of SunOS 4.x major device bits */
 200 #define SO4_BITSMINOR   8       /* # of SunOS 4.x minor device bits */
 201 #define SO4_MAXMAJ      0xff    /* SunOS 4.x max major value */
 202 #define SO4_MAXMIN      0xff    /* SunOS 4.x max minor value */
 203 
 204 /*
 205  * Convert to over-the-wire device number format
 206  */
 207 #define nfsv2_cmpdev(x) \
 208         ((uint32_t) \
 209         ((getmajor(x) > SO4_MAXMAJ || getminor(x) > SO4_MAXMIN) ? NODEV : \
 210         ((getmajor(x) << SO4_BITSMINOR) | (getminor(x) & SO4_MAXMIN))))
 211 
 212 /*
 213  * Convert from over-the-wire format to SVR4 device number format
 214  */
 215 #define nfsv2_expdev(x) \
 216         makedevice((((x) >> SO4_BITSMINOR) & SO4_MAXMAJ), (x) & SO4_MAXMIN)
 217 
 218 /*
 219  * Special kludge for fifos (named pipes)  [to adhere to NFS Protocol Spec]
 220  *
 221  * VFIFO is not in the protocol spec (VNON will be replaced by VFIFO)
 222  * so the over-the-wire representation is VCHR with a '-1' device number.
 223  *
 224  * NOTE: This kludge becomes unnecessary with the Protocol Revision,
 225  *       but it may be necessary to support it (backwards compatibility).
 226  */
 227 #define NFS_FIFO_TYPE   NFCHR
 228 #define NFS_FIFO_MODE   S_IFCHR
 229 #define NFS_FIFO_DEV    ((uint32_t)-1)
 230 
 231 /* identify fifo in nfs attributes */
 232 #define NA_ISFIFO(NA)   (((NA)->na_type == NFS_FIFO_TYPE) && \
 233                             ((NA)->na_rdev == NFS_FIFO_DEV))
 234 
 235 /* set fifo in nfs attributes */
 236 #define NA_SETFIFO(NA)  { \
 237                 (NA)->na_type = NFS_FIFO_TYPE; \
 238                 (NA)->na_rdev = NFS_FIFO_DEV; \
 239                 (NA)->na_mode = ((NA)->na_mode & ~S_IFMT) | NFS_FIFO_MODE; \
 240                 }
 241 
 242 /*
 243  * Check for time overflow using a kernel tunable to determine whether
 244  * we should accept or reject an unsigned 32-bit time value. Time value in NFS
 245  * v2/3 protocol is unsigned 32 bit, but ILP32 kernel only allows 31 bits.
 246  * In nfsv4, time value is a signed 64 bit, so needs to be checked for
 247  * overflow as well (e.g. for setattr). So define the tunable as follows:
 248  * nfs_allow_preepoch_time is TRUE if pre-epoch (negative) times are allowed
 249  * and is FALSE (the default) otherwise. For nfsv2/3 this means that
 250  * if negative times are allowed, the uint32_t time value is interpreted
 251  * as a signed int, otherwise as a large positive number. For nfsv4,
 252  * we use the value as is - except that if negative times are not allowed,
 253  * we will not accept a negative value otw.
 254  *
 255  * So for nfsv2/3 (uint32_t):
 256  *
 257  * If nfs_allow_preepoch_time is
 258  * FALSE, the maximum time value is INT32_MAX for 32-bit kernels and
 259  * UINT32_MAX for 64-bit kernels (to allow times larger than 2038)
 260  * and the minimum is zero. Note that in that case, a 32-bit application
 261  * running on a 64-bit kernel will not be able to access files with
 262  * the larger time values.
 263  * If nfs_allow_preepoch_time is TRUE, the maximum time value is INT32_MAX
 264  * for both kernel configurations and the minimum is INT32_MIN.
 265  *
 266  * And for nfsv4 (int64_t):
 267  *
 268  * nfsv4 allows for negative values in the protocol, and has a 64-bit
 269  * time field, so nfs_allow_preepoch_time can be ignored.
 270  */
 271 #ifdef _KERNEL
 272 
 273 extern bool_t           nfs_allow_preepoch_time;
 274 
 275 #ifdef _LP64
 276 
 277 /*
 278  * If no negative otw values are allowed, may use the full 32-bits of the
 279  * time to represent time later than 2038, by presenting the value as an
 280  * unsigned (but this can only be used by 64-bit apps due to cstat32
 281  * restrictions). If negative values are allowed, cannot represent times
 282  * after 2038. Either way, all 32 bits have a valid representation.
 283  */
 284 
 285 /* Check if nfstime4 seconds (int64_t) can be stored in the system time */
 286 #define NFS4_TIME_OK(tt)        TRUE
 287 
 288 
 289 #define NFS3_TIME_OVERFLOW(tt)  (FALSE)
 290 #define NFS2_TIME_OVERFLOW(tt)  (FALSE)
 291 
 292 /*
 293  * check if a time_t (int64_t) is ok when preepoch times are allowed -
 294  * nfsv2/3: every 32-bit value is accepted, but can't overflow 64->32.
 295  * nfsv4: every value is valid.
 296  */
 297 #define NFS_PREEPOCH_TIME_T_OK(tt)                                      \
 298         (((tt) >= (time_t)INT32_MIN) && ((tt) <= (time_t)INT32_MAX))
 299 
 300 /*
 301  * check if a time_t (int64_t) is ok when preepoch times are not allowed -
 302  * nfsv2/3: every positive 32-bit value is accepted, but can't overflow 64->32.
 303  * nfsv4: every value is valid.
 304  */
 305 #define NFS_NO_PREEPOCH_TIME_T_OK(tt)                                   \
 306         (((tt) >= 0) && ((tt) <= (time_t)(ulong_t)UINT32_MAX))
 307 
 308 #else /* not _LP64 */
 309 
 310 /*
 311  * Cannot represent times after 2038 in a 32-bit kernel, but we may wish to
 312  * restrict the use of negative values (which violate the protocol).
 313  * So if negative times allowed, all uint32 time values are valid. Otherwise
 314  * only those which are less than INT32_MAX (msb=0).
 315  *
 316  * NFSv4 uses int64_t for the time, so in a 32-bit kernel the nfsv4 value
 317  * must fit in an int32_t.
 318  */
 319 
 320 /* Only allow signed 32-bit time values */
 321 
 322 /* Check if an nfstime4 (int64_t) can be stored in the system time */
 323 #define NFS4_TIME_OK(tt)                                                \
 324         (((tt) <= INT32_MAX) &&      ((tt) >= INT32_MIN))
 325 
 326 #define NFS3_TIME_OVERFLOW(tt)  ((tt) > INT32_MAX)
 327 #define NFS2_TIME_OVERFLOW(tt)  ((tt) > INT32_MAX)
 328 
 329 /*
 330  * check if a time_t (int32_t) is ok when preepoch times are allowed -
 331  * every 32-bit value is accepted
 332  */
 333 #define NFS_PREEPOCH_TIME_T_OK(tt)      TRUE
 334 
 335 /*
 336  * check if a time_t (int32_t) is ok when preepoch times are not allowed -
 337  * only positive values are accepted.
 338  */
 339 #define NFS_NO_PREEPOCH_TIME_T_OK(tt)   ((tt) >= 0)
 340 
 341 #endif /* _LP64 */
 342 
 343 /* Check if an nfstime3 (uint32_t) can be stored in the system time */
 344 #define NFS3_TIME_OK(tt)                                                \
 345         (nfs_allow_preepoch_time || (!NFS3_TIME_OVERFLOW(tt)))
 346 
 347 /* Check if an nfs2_timeval (uint32_t) can be stored in the system time. */
 348 #define NFS2_TIME_OK(tt)                                                \
 349         (nfs_allow_preepoch_time || (!NFS2_TIME_OVERFLOW(tt)))
 350 
 351 /*
 352  * Test if time_t (signed long) can be sent over the wire - for v2/3 only if:
 353  * 1. The time value can fit in a uint32_t; and
 354  * 2. Either the time value is positive or allow preepoch times.
 355  * No restrictions for nfsv4.
 356  */
 357 #define NFS_TIME_T_OK(tt)                                               \
 358         (nfs_allow_preepoch_time ?                                      \
 359                 NFS_PREEPOCH_TIME_T_OK(tt) : NFS_NO_PREEPOCH_TIME_T_OK(tt))
 360 
 361 #define NFS4_TIME_T_OK(tt)              TRUE
 362 
 363 /* Test if all attr times are valid */
 364 #define NFS_VAP_TIME_OK(vap)                                            \
 365         (nfs_allow_preepoch_time ?                                      \
 366                 (NFS_PREEPOCH_TIME_T_OK((vap)->va_atime.tv_sec) &&   \
 367                 NFS_PREEPOCH_TIME_T_OK((vap)->va_mtime.tv_sec) &&    \
 368                 NFS_PREEPOCH_TIME_T_OK((vap)->va_ctime.tv_sec)) :    \
 369                 (NFS_NO_PREEPOCH_TIME_T_OK((vap)->va_atime.tv_sec) &&        \
 370                 NFS_NO_PREEPOCH_TIME_T_OK((vap)->va_mtime.tv_sec) && \
 371                 NFS_NO_PREEPOCH_TIME_T_OK((vap)->va_ctime.tv_sec)))
 372 
 373 #define NFS4_VAP_TIME_OK(vap)                   TRUE
 374 
 375 /*
 376  * To extend the sign or not extend the sign, that is the question.
 377  * Note: The correct way is to code a macro:
 378  * #define      NFS_TIME_T_CONVERT(tt)                                  \
 379  *      (nfs_allow_preepoch_time ? (int32_t)(tt) : (uint32_t)(tt))
 380  * But the 64-bit compiler does not extend the sign in that case (why?)
 381  * so we'll do it the ugly way...
 382  */
 383 #define NFS_TIME_T_CONVERT(systt, tt)           \
 384         if (nfs_allow_preepoch_time) {          \
 385                 systt = (int32_t)(tt);          \
 386         } else {                                \
 387                 systt = (uint32_t)(tt);         \
 388         }
 389 
 390 /* macro to check for overflowed time attribute fields - version 3 */
 391 #define NFS3_FATTR_TIME_OK(attrs)                       \
 392         (NFS3_TIME_OK((attrs)->atime.seconds) &&     \
 393         NFS3_TIME_OK((attrs)->mtime.seconds) &&              \
 394         NFS3_TIME_OK((attrs)->ctime.seconds))
 395 
 396 /* macro to check for overflowed time attribute fields - version 2 */
 397 #define NFS2_FATTR_TIME_OK(attrs)                       \
 398         (NFS2_TIME_OK((attrs)->na_atime.tv_sec) &&   \
 399         NFS2_TIME_OK((attrs)->na_mtime.tv_sec) &&    \
 400         NFS2_TIME_OK((attrs)->na_ctime.tv_sec))
 401 
 402 /* Check that a size3 value is not overflowed */
 403 #define NFS3_SIZE_OK(size)      ((size) <= MAXOFFSET_T)
 404 
 405 #endif /* _KERNEL */
 406 
 407 /*
 408  * Size of an fhandle in bytes
 409  */
 410 #define NFS_FHSIZE      32
 411 
 412 struct nfs_fid {
 413         ushort_t nf_len;
 414         ushort_t nf_pad;
 415         char    nf_data[NFS_FHSIZE];
 416 };
 417 
 418 /*
 419  * "Legacy" filehandles use NFS_FHMAXDATA (10) byte fids. Filesystems that
 420  * return a larger fid than NFS_FHMAXDATA, such as ZFS's .zfs snapshot
 421  * directory, can use up to (((64 - 8) / 2) - 2) bytes for their fid.
 422  * This currently holds for both NFSv3 and NFSv4.
 423  */
 424 #define NFS_FHMAXDATA           10
 425 #define NFS_FH3MAXDATA          26
 426 #define NFS_FH4MAXDATA          26
 427 
 428 /*
 429  * The original nfs file handle size for version 3 was 32 which was
 430  * the same in version 2; now we're making it bigger to to deal with
 431  * ZFS snapshot FIDs.
 432  *
 433  * If the size of fhandle3_t changes or if Version 3 uses some other
 434  * filehandle format, this constant may need to change.
 435  */
 436 
 437 #define NFS3_OLDFHSIZE  32
 438 #define NFS3_MAXFHSIZE  64
 439 
 440 /*
 441  * This is the actual definition of a legacy filehandle.  There is some
 442  * dependence on this layout in NFS-related code, particularly in the
 443  * user-level lock manager, so be careful about changing it.
 444  *
 445  * Currently only NFSv2 uses this structure.
 446  */
 447 
 448 typedef struct svcfh {
 449         fsid_t  fh_fsid;                        /* filesystem id */
 450         ushort_t fh_len;                        /* file number length */
 451         char    fh_data[NFS_FHMAXDATA];         /* and data */
 452         ushort_t fh_xlen;                       /* export file number length */
 453         char    fh_xdata[NFS_FHMAXDATA];        /* and data */
 454 } fhandle_t;
 455 
 456 /*
 457  * This is the in-memory structure for an NFSv3 extended filehandle.
 458  */
 459 typedef struct {
 460         fsid_t  _fh3_fsid;                      /* filesystem id */
 461         ushort_t _fh3_len;                      /* file number length */
 462         char    _fh3_data[NFS_FH3MAXDATA];              /* and data */
 463         ushort_t _fh3_xlen;                     /* export file number length */
 464         char    _fh3_xdata[NFS_FH3MAXDATA];     /* and data */
 465 } fhandle3_t;
 466 
 467 /*
 468  * This is the in-memory structure for an NFSv4 extended filehandle.
 469  */
 470 typedef struct {
 471         fsid_t  fhx_fsid;                       /* filesystem id */
 472         ushort_t fhx_len;                       /* file number length */
 473         char    fhx_data[NFS_FH4MAXDATA];       /* and data */
 474         ushort_t fhx_xlen;                      /* export file number length */
 475         char    fhx_xdata[NFS_FH4MAXDATA];      /* and data */
 476 } fhandle4_t;
 477 
 478 /*
 479  * Arguments to remote write and writecache
 480  */
 481 /*
 482  * The `over the wire' representation of the first four arguments.
 483  */
 484 struct otw_nfswriteargs {
 485         fhandle_t       otw_wa_fhandle;
 486         uint32_t        otw_wa_begoff;
 487         uint32_t        otw_wa_offset;
 488         uint32_t        otw_wa_totcount;
 489 };
 490 
 491 struct nfswriteargs {
 492         struct otw_nfswriteargs *wa_args;       /* ptr to the otw arguments */
 493         struct otw_nfswriteargs wa_args_buf;    /* space for otw arguments */
 494         uint32_t        wa_count;
 495         char            *wa_data;       /* data to write (up to NFS_MAXDATA) */
 496         mblk_t          *wa_mblk;       /* pointer to mblks containing data */
 497 #ifdef _KERNEL
 498         /* rdma related info */
 499         struct clist    *wa_rlist;
 500         CONN            *wa_conn;
 501 #endif /* _KERNEL */
 502 };
 503 #define wa_fhandle      wa_args->otw_wa_fhandle
 504 #define wa_begoff       wa_args->otw_wa_begoff
 505 #define wa_offset       wa_args->otw_wa_offset
 506 #define wa_totcount     wa_args->otw_wa_totcount
 507 
 508 /*
 509  * NFS timeval struct using unsigned int as specified in V2 protocol.
 510  * tv_sec and tv_usec used to match existing code.
 511  */
 512 struct nfs2_timeval {
 513         uint32_t tv_sec;
 514         uint32_t tv_usec;
 515 };
 516 typedef struct nfs2_timeval nfs2_timeval;
 517 
 518 /*
 519  * File attributes
 520  */
 521 struct nfsfattr {
 522         enum nfsftype   na_type;        /* file type */
 523         uint32_t        na_mode;        /* protection mode bits */
 524         uint32_t        na_nlink;       /* # hard links */
 525         uint32_t        na_uid;         /* owner user id */
 526         uint32_t        na_gid;         /* owner group id */
 527         uint32_t        na_size;        /* file size in bytes */
 528         uint32_t        na_blocksize;   /* preferred block size */
 529         uint32_t        na_rdev;        /* special device # */
 530         uint32_t        na_blocks;      /* Kb of disk used by file */
 531         uint32_t        na_fsid;        /* device # */
 532         uint32_t        na_nodeid;      /* inode # */
 533         struct nfs2_timeval na_atime;   /* time of last access */
 534         struct nfs2_timeval na_mtime;   /* time of last modification */
 535         struct nfs2_timeval na_ctime;   /* time of last change */
 536 };
 537 
 538 #define n2v_type(x)     (NA_ISFIFO(x) ? VFIFO : nf_to_vt[(x)->na_type])
 539 #define n2v_rdev(x)     (NA_ISFIFO(x) ? 0 : (x)->na_rdev)
 540 
 541 /*
 542  * Arguments to remote read
 543  */
 544 struct nfsreadargs {
 545         fhandle_t       ra_fhandle;     /* handle for file */
 546         uint32_t        ra_offset;      /* byte offset in file */
 547         uint32_t        ra_count;       /* immediate read count */
 548         uint32_t        ra_totcount;    /* total read cnt (from this offset) */
 549 #ifdef _KERNEL
 550         /* used in rdma transports */
 551         caddr_t         ra_data;        /* destination for read data */
 552         struct clist    *ra_wlist;
 553         CONN            *ra_conn;
 554 #endif
 555 };
 556 
 557 /*
 558  * Status OK portion of remote read reply
 559  */
 560 struct nfsrrok {
 561         struct nfsfattr rrok_attr;      /* attributes, need for pagin */
 562         uint32_t        rrok_count;     /* bytes of data */
 563         char            *rrok_data;     /* data (up to NFS_MAXDATA bytes) */
 564         uint_t          rrok_bufsize;   /* size of kmem_alloc'd buffer */
 565         mblk_t          *rrok_mp;       /* mblk_t contains data for reply */
 566 #ifdef _KERNEL
 567         uint_t          rrok_wlist_len;
 568         struct clist    *rrok_wlist;
 569 #endif
 570 };
 571 
 572 /*
 573  * Reply from remote read
 574  */
 575 struct nfsrdresult {
 576         nfsstat rr_status;                      /* status of read */
 577         union {
 578                 struct nfsrrok  rr_ok_u;        /* attributes, need for pagin */
 579         } rr_u;
 580 };
 581 #define rr_ok           rr_u.rr_ok_u
 582 #define rr_attr         rr_u.rr_ok_u.rrok_attr
 583 #define rr_count        rr_u.rr_ok_u.rrok_count
 584 #define rr_bufsize      rr_u.rr_ok_u.rrok_bufsize
 585 #define rr_data         rr_u.rr_ok_u.rrok_data
 586 #define rr_mp           rr_u.rr_ok_u.rrok_mp
 587 
 588 /*
 589  * File attributes which can be set
 590  */
 591 struct nfssattr {
 592         uint32_t        sa_mode;        /* protection mode bits */
 593         uint32_t        sa_uid;         /* owner user id */
 594         uint32_t        sa_gid;         /* owner group id */
 595         uint32_t        sa_size;        /* file size in bytes */
 596         struct nfs2_timeval sa_atime;   /* time of last access */
 597         struct nfs2_timeval sa_mtime;   /* time of last modification */
 598 };
 599 
 600 
 601 /*
 602  * Reply status with file attributes
 603  */
 604 struct nfsattrstat {
 605         nfsstat ns_status;                      /* reply status */
 606         union {
 607                 struct nfsfattr ns_attr_u;      /* NFS_OK: file attributes */
 608         } ns_u;
 609 };
 610 #define ns_attr ns_u.ns_attr_u
 611 
 612 
 613 /*
 614  * NFS_OK part of read sym link reply union
 615  */
 616 struct nfssrok {
 617         uint32_t srok_count;    /* size of string */
 618         char    *srok_data;     /* string (up to NFS_MAXPATHLEN bytes) */
 619 };
 620 
 621 /*
 622  * Result of reading symbolic link
 623  */
 624 struct nfsrdlnres {
 625         nfsstat rl_status;                      /* status of symlink read */
 626         union {
 627                 struct nfssrok  rl_srok_u;      /* name of linked to */
 628         } rl_u;
 629 };
 630 #define rl_srok         rl_u.rl_srok_u
 631 #define rl_count        rl_u.rl_srok_u.srok_count
 632 #define rl_data         rl_u.rl_srok_u.srok_data
 633 
 634 
 635 /*
 636  * Arguments to readdir
 637  */
 638 struct nfsrddirargs {
 639         fhandle_t rda_fh;       /* directory handle */
 640         uint32_t rda_offset;    /* offset in directory (opaque) */
 641         uint32_t rda_count;     /* number of directory bytes to read */
 642 };
 643 
 644 /*
 645  * NFS_OK part of readdir result
 646  */
 647 struct nfsrdok {
 648         uint32_t rdok_offset;           /* next offset (opaque) */
 649         uint32_t rdok_size;             /* size in bytes of entries */
 650         bool_t  rdok_eof;               /* true if last entry is in result */
 651         struct dirent64 *rdok_entries;  /* variable number of entries */
 652 };
 653 
 654 /*
 655  * Readdir result
 656  */
 657 struct nfsrddirres {
 658         nfsstat rd_status;
 659         uint_t          rd_bufsize;     /* client request size (not xdr'ed) */
 660         union {
 661                 struct nfsrdok rd_rdok_u;
 662         } rd_u;
 663 };
 664 #define rd_rdok         rd_u.rd_rdok_u
 665 #define rd_offset       rd_u.rd_rdok_u.rdok_offset
 666 #define rd_size         rd_u.rd_rdok_u.rdok_size
 667 #define rd_eof          rd_u.rd_rdok_u.rdok_eof
 668 #define rd_entries      rd_u.rd_rdok_u.rdok_entries
 669 
 670 
 671 /*
 672  * Arguments for directory operations
 673  */
 674 struct nfsdiropargs {
 675         fhandle_t       *da_fhandle;    /* pointer to directory file handle */
 676         char            *da_name;       /* name (up to NFS_MAXNAMLEN bytes) */
 677         fhandle_t       da_fhandle_buf; /* directory file handle */
 678         int             da_flags;       /* flags, see below */
 679 };
 680 #define DA_FREENAME     1
 681 
 682 /*
 683  * NFS_OK part of directory operation result
 684  */
 685 struct  nfsdrok {
 686         fhandle_t       drok_fhandle;   /* result file handle */
 687         struct nfsfattr drok_attr;      /* result file attributes */
 688 };
 689 
 690 /*
 691  * Results from directory operation
 692  */
 693 struct  nfsdiropres {
 694         nfsstat dr_status;                      /* result status */
 695         union {
 696                 struct  nfsdrok dr_drok_u;      /* NFS_OK result */
 697         } dr_u;
 698 };
 699 #define dr_drok         dr_u.dr_drok_u
 700 #define dr_fhandle      dr_u.dr_drok_u.drok_fhandle
 701 #define dr_attr         dr_u.dr_drok_u.drok_attr
 702 
 703 /*
 704  * arguments to setattr
 705  */
 706 struct nfssaargs {
 707         fhandle_t       saa_fh;         /* fhandle of file to be set */
 708         struct nfssattr saa_sa;         /* new attributes */
 709 };
 710 
 711 /*
 712  * arguments to create and mkdir
 713  */
 714 struct nfscreatargs {
 715         struct nfsdiropargs     ca_da;  /* file name to create and parent dir */
 716         struct nfssattr         *ca_sa; /* initial attributes */
 717         struct nfssattr         ca_sa_buf;      /* space to store attributes */
 718 };
 719 
 720 /*
 721  * arguments to link
 722  */
 723 struct nfslinkargs {
 724         fhandle_t               *la_from;       /* old file */
 725         fhandle_t               la_from_buf;    /* old file */
 726         struct nfsdiropargs     la_to;          /* new file and parent dir */
 727 };
 728 
 729 /*
 730  * arguments to rename
 731  */
 732 struct nfsrnmargs {
 733         struct nfsdiropargs rna_from;   /* old file and parent dir */
 734         struct nfsdiropargs rna_to;     /* new file and parent dir */
 735 };
 736 
 737 /*
 738  * arguments to symlink
 739  */
 740 struct nfsslargs {
 741         struct nfsdiropargs     sla_from;       /* old file and parent dir */
 742         char                    *sla_tnm;       /* new name */
 743         int                     sla_tnm_flags;  /* flags for name */
 744         struct nfssattr         *sla_sa;        /* attributes */
 745         struct nfssattr         sla_sa_buf;     /* attributes buffer */
 746 };
 747 #define SLA_FREETNM     1
 748 
 749 /*
 750  * NFS_OK part of statfs operation
 751  */
 752 struct nfsstatfsok {
 753         uint32_t fsok_tsize;    /* preferred transfer size in bytes */
 754         uint32_t fsok_bsize;    /* fundamental file system block size */
 755         uint32_t fsok_blocks;   /* total blocks in file system */
 756         uint32_t fsok_bfree;    /* free blocks in fs */
 757         uint32_t fsok_bavail;   /* free blocks avail to non-superuser */
 758 };
 759 
 760 /*
 761  * Results of statfs operation
 762  */
 763 struct nfsstatfs {
 764         nfsstat fs_status;                      /* result status */
 765         union {
 766                 struct  nfsstatfsok fs_fsok_u;  /* NFS_OK result */
 767         } fs_u;
 768 };
 769 #define fs_fsok         fs_u.fs_fsok_u
 770 #define fs_tsize        fs_u.fs_fsok_u.fsok_tsize
 771 #define fs_bsize        fs_u.fs_fsok_u.fsok_bsize
 772 #define fs_blocks       fs_u.fs_fsok_u.fsok_blocks
 773 #define fs_bfree        fs_u.fs_fsok_u.fsok_bfree
 774 #define fs_bavail       fs_u.fs_fsok_u.fsok_bavail
 775 
 776 #ifdef _KERNEL
 777 /*
 778  * XDR routines for handling structures defined above
 779  */
 780 extern bool_t   xdr_attrstat(XDR *, struct nfsattrstat *);
 781 extern bool_t   xdr_fastattrstat(XDR *, struct nfsattrstat *);
 782 extern bool_t   xdr_creatargs(XDR *, struct nfscreatargs *);
 783 extern bool_t   xdr_diropargs(XDR *, struct nfsdiropargs *);
 784 extern bool_t   xdr_diropres(XDR *, struct nfsdiropres *);
 785 extern bool_t   xdr_fastdiropres(XDR *, struct nfsdiropres *);
 786 extern bool_t   xdr_drok(XDR *, struct nfsdrok *);
 787 #ifdef _LITTLE_ENDIAN
 788 extern bool_t   xdr_fastdrok(XDR *, struct nfsdrok *);
 789 extern bool_t   xdr_fastfattr(XDR *, struct nfsfattr *);
 790 #endif
 791 extern bool_t   xdr_fattr(XDR *, struct nfsfattr *);
 792 extern bool_t   xdr_fhandle(XDR *, fhandle_t *);
 793 extern bool_t   xdr_fastfhandle(XDR *, fhandle_t **);
 794 extern bool_t   xdr_linkargs(XDR *, struct nfslinkargs *);
 795 extern bool_t   xdr_rddirargs(XDR *, struct nfsrddirargs *);
 796 extern bool_t   xdr_putrddirres(XDR *, struct nfsrddirres *);
 797 extern bool_t   xdr_getrddirres(XDR *, struct nfsrddirres *);
 798 extern bool_t   xdr_rdlnres(XDR *, struct nfsrdlnres *);
 799 extern bool_t   xdr_rdresult(XDR *, struct nfsrdresult *);
 800 extern bool_t   xdr_readargs(XDR *, struct nfsreadargs *);
 801 extern bool_t   xdr_readlink(XDR *, fhandle_t *);
 802 extern bool_t   xdr_rnmargs(XDR *, struct nfsrnmargs *);
 803 extern bool_t   xdr_rrok(XDR *, struct nfsrrok *);
 804 extern bool_t   xdr_saargs(XDR *, struct nfssaargs *);
 805 extern bool_t   xdr_sattr(XDR *, struct nfssattr *);
 806 extern bool_t   xdr_slargs(XDR *, struct nfsslargs *);
 807 extern bool_t   xdr_srok(XDR *, struct nfssrok *);
 808 extern bool_t   xdr_nfs2_timeval(XDR *, struct nfs2_timeval *);
 809 extern bool_t   xdr_writeargs(XDR *, struct nfswriteargs *);
 810 extern bool_t   xdr_fsok(XDR *, struct nfsstatfsok *);
 811 #ifdef _LITTLE_ENDIAN
 812 extern bool_t   xdr_fastfsok(XDR *, struct nfsstatfsok *);
 813 extern bool_t   xdr_fastenum(XDR *, enum_t *);
 814 #endif
 815 extern bool_t   xdr_statfs(XDR *, struct nfsstatfs *);
 816 extern bool_t   xdr_faststatfs(XDR *, struct nfsstatfs *);
 817 #endif
 818 
 819 /*
 820  * Remote file service routines
 821  */
 822 #define RFS_NULL        0
 823 #define RFS_GETATTR     1
 824 #define RFS_SETATTR     2
 825 #define RFS_ROOT        3
 826 #define RFS_LOOKUP      4
 827 #define RFS_READLINK    5
 828 #define RFS_READ        6
 829 #define RFS_WRITECACHE  7
 830 #define RFS_WRITE       8
 831 #define RFS_CREATE      9
 832 #define RFS_REMOVE      10
 833 #define RFS_RENAME      11
 834 #define RFS_LINK        12
 835 #define RFS_SYMLINK     13
 836 #define RFS_MKDIR       14
 837 #define RFS_RMDIR       15
 838 #define RFS_READDIR     16
 839 #define RFS_STATFS      17
 840 #define RFS_NPROC       18
 841 
 842 #ifdef _KERNEL
 843 /*
 844  * The NFS Version 2 service procedures
 845  */
 846 struct exportinfo;      /* defined in nfs/export.h */
 847 struct servinfo;        /* defined in nfs/nfs_clnt.h */
 848 struct mntinfo;         /* defined in nfs/nfs_clnt.h */
 849 
 850 extern void     rfs_getattr(fhandle_t *, struct nfsattrstat *,
 851     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 852 extern void     *rfs_getattr_getfh(fhandle_t *);
 853 extern void     rfs_setattr(struct nfssaargs *, struct nfsattrstat *,
 854     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 855 extern void     *rfs_setattr_getfh(struct nfssaargs *);
 856 extern void     rfs_lookup(struct nfsdiropargs *, struct nfsdiropres *,
 857     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 858 extern void     *rfs_lookup_getfh(struct nfsdiropargs *);
 859 extern void     rfs_readlink(fhandle_t *, struct nfsrdlnres *,
 860     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 861 extern void     *rfs_readlink_getfh(fhandle_t *);
 862 extern void     rfs_rlfree(struct nfsrdlnres *);
 863 extern void     rfs_read(struct nfsreadargs *, struct nfsrdresult *,
 864     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 865 extern void     *rfs_read_getfh(struct nfsreadargs *);
 866 extern void     rfs_rdfree(struct nfsrdresult *);
 867 extern void     rfs_write_sync(struct nfswriteargs *, struct nfsattrstat *,
 868     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 869 extern void     rfs_write(struct nfswriteargs *, struct nfsattrstat *,
 870     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 871 extern void     *rfs_write_getfh(struct nfswriteargs *);
 872 extern void     rfs_create(struct nfscreatargs *, struct nfsdiropres *,
 873     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 874 extern void     *rfs_create_getfh(struct nfscreatargs *);
 875 extern void     rfs_remove(struct nfsdiropargs *, enum nfsstat *,
 876     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 877 extern void     *rfs_remove_getfh(struct nfsdiropargs *);
 878 extern void     rfs_rename(struct nfsrnmargs *, enum nfsstat *,
 879     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 880 extern void     *rfs_rename_getfh(struct nfsrnmargs *);
 881 extern void     rfs_link(struct nfslinkargs *, enum nfsstat *,
 882     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 883 extern void     *rfs_link_getfh(struct nfslinkargs *);
 884 extern void     rfs_symlink(struct nfsslargs *, enum nfsstat *,
 885     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 886 extern void     *rfs_symlink_getfh(struct nfsslargs *);
 887 extern void     rfs_mkdir(struct nfscreatargs *, struct nfsdiropres *,
 888     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 889 extern void     *rfs_mkdir_getfh(struct nfscreatargs *);
 890 extern void     rfs_rmdir(struct nfsdiropargs *, enum nfsstat *,
 891     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 892 extern void     *rfs_rmdir_getfh(struct nfsdiropargs *);
 893 extern void     rfs_readdir(struct nfsrddirargs *, struct nfsrddirres *,
 894     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 895 extern void     *rfs_readdir_getfh(struct nfsrddirargs *);
 896 extern void     rfs_rddirfree(struct nfsrddirres *);
 897 extern void     rfs_statfs(fhandle_t *, struct nfsstatfs *, struct exportinfo *,
 898     struct svc_req *, cred_t *, bool_t);
 899 extern void     *rfs_statfs_getfh(fhandle_t *);
 900 extern void     rfs_srvrinit(void);
 901 extern void     rfs_srvrfini(void);
 902 
 903 /*
 904  * flags to define path types during Multi Component Lookups
 905  * using the public filehandle
 906  */
 907 #define URLPATH         0x01    /* Universal Resource Locator path */
 908 #define NATIVEPATH      0x02    /* Native path, i.e., via mount protocol */
 909 #define SECURITY_QUERY  0x04    /* Security query */
 910 
 911 /* index for svstat_ptr */
 912 enum nfs_svccounts {NFS_CALLS, NFS_BADCALLS, NFS_REFERRALS, NFS_REFERLINKS};
 913 
 914 /*      function defs for NFS kernel */
 915 extern int      nfs_waitfor_purge_complete(vnode_t *);
 916 extern int      nfs_validate_caches(vnode_t *, cred_t *);
 917 extern void     nfs_purge_caches(vnode_t *, int, cred_t *);
 918 extern void     nfs_purge_rddir_cache(vnode_t *);
 919 extern void     nfs_attrcache(vnode_t *, struct nfsfattr *, hrtime_t);
 920 extern int      nfs_cache_fattr(vnode_t *, struct nfsfattr *, vattr_t *,
 921     hrtime_t, cred_t *);
 922 extern void     nfs_attr_cache(vnode_t *, vattr_t *, hrtime_t, cred_t *);
 923 extern void     nfs_attrcache_va(vnode_t *, struct vattr *);
 924 extern int      nfs_getattr_otw(vnode_t *, struct vattr *, cred_t *);
 925 extern int      nfsgetattr(vnode_t *, struct vattr *, cred_t *);
 926 extern int      nattr_to_vattr(vnode_t *, struct nfsfattr *, struct vattr *);
 927 extern void     nfs_async_manager(struct vfs *);
 928 extern void     nfs_async_manager_stop(struct vfs *);
 929 extern void     nfs_async_stop(struct vfs *);
 930 extern int      nfs_async_stop_sig(struct vfs *);
 931 extern int      nfs_clntinit(void);
 932 extern void     nfs_clntfini(void);
 933 extern int      nfstsize(void);
 934 extern void     nfs_srvinit(void);
 935 extern void     nfs_srvfini(void);
 936 extern int      vattr_to_sattr(struct vattr *, struct nfssattr *);
 937 extern void     setdiropargs(struct nfsdiropargs *, char *, vnode_t *);
 938 extern int      setdirgid(vnode_t *, gid_t *, cred_t *);
 939 extern int      setdirmode(vnode_t *, mode_t *, cred_t *);
 940 extern int      newnum(void);
 941 extern char     *newname(void);
 942 extern int      nfs_subrinit(void);
 943 extern void     nfs_subrfini(void);
 944 extern enum nfsstat puterrno(int);
 945 extern int      geterrno(enum nfsstat);
 946 extern int      nfsinit(int, char *);
 947 extern void     nfsfini(void);
 948 extern int      nfs_vfsinit(void);
 949 extern void     nfs_vfsfini(void);
 950 extern int      nfs_dump(vnode_t *, caddr_t, offset_t, offset_t,
 951     caller_context_t *);
 952 extern void     nfs_perror(int, char *, ...);
 953 extern void     nfs_cmn_err(int, int, char *, ...);
 954 extern int      nfs_addcllock(vnode_t *, struct flock64 *);
 955 extern void     nfs_rmcllock(vnode_t *, struct flock64 *);
 956 extern void     nfs_lockrelease(vnode_t *, int, offset_t, cred_t *);
 957 extern int      vattr_to_nattr(struct vattr *, struct nfsfattr *);
 958 extern int      mount_root(char *, char *, int, struct nfs_args *, int *);
 959 extern void     nfs_lockcompletion(vnode_t *, int);
 960 extern void     nfs_add_locking_id(vnode_t *, pid_t, int, char *, int);
 961 extern void     nfs3copyfh(caddr_t, vnode_t *);
 962 extern void     nfscopyfh(caddr_t, vnode_t *);
 963 extern int      nfs3lookup(vnode_t *, char *, vnode_t **, struct pathname *,
 964     int, vnode_t *, cred_t *, int);
 965 extern int      nfslookup(vnode_t *, char *, vnode_t **, struct pathname *, int,
 966     vnode_t *, cred_t *, int);
 967 extern void     sv_free(struct servinfo *);
 968 extern int      nfsauth_access(struct exportinfo *, struct svc_req *, cred_t *,
 969     uid_t *, gid_t *, uint_t *, gid_t **);
 970 extern void     nfsauth_init(void);
 971 extern void     nfsauth_fini(void);
 972 extern int      nfs_setopts(vnode_t *, model_t, struct nfs_args *);
 973 extern int      nfs_mount_label_policy(vfs_t *, struct netbuf *,
 974     struct knetconfig *, cred_t *);
 975 extern boolean_t nfs_has_ctty(void);
 976 extern void     nfs_srv_stop_all(void);
 977 extern void     nfs_srv_quiesce_all(void);
 978 extern int      rfs4_dss_setpaths(char *, size_t);
 979 extern int      nfs_setmod_check(page_t *);
 980 
 981 extern time_t   rfs4_lease_time;
 982 extern time_t   rfs4_grace_period;
 983 extern nvlist_t *rfs4_dss_paths, *rfs4_dss_oldpaths;
 984 
 985 extern kstat_named_t    *global_svstat_ptr[];
 986 
 987 extern zone_key_t       rfs4_zone_key;
 988 extern zone_key_t       nfssrv_zone_key;
 989 extern krwlock_t        rroklock;
 990 extern vtype_t          nf_to_vt[];
 991 extern kstat_named_t    *rfsproccnt_v2_ptr;
 992 extern kmutex_t         nfs_minor_lock;
 993 extern int              nfs_major;
 994 extern int              nfs_minor;
 995 extern vfsops_t         *nfs_vfsops;
 996 extern struct vnodeops  *nfs_vnodeops;
 997 extern const struct fs_operation_def nfs_vnodeops_template[];
 998 extern int              nfsfstyp;
 999 extern void             (*nfs_srv_quiesce_func)(void);
1000 extern int              (*nfs_srv_dss_func)(char *, size_t);
1001 
1002 /*
1003  * Per-zone stats as consumed by nfsstat(1m)
1004  */
1005 struct nfs_version_stats {
1006         kstat_named_t   *aclreqcnt_ptr;         /* nfs_acl:0:aclreqcnt_v? */
1007         kstat_named_t   *aclproccnt_ptr;        /* nfs_acl:0:aclproccnt_v? */
1008         kstat_named_t   *rfsreqcnt_ptr;         /* nfs:0:rfsreqcnt_v? */
1009         kstat_named_t   *rfsproccnt_ptr;        /* nfs:0:rfsproccnt_v? */
1010 };
1011 
1012 /*
1013  * A bit of asymmetry: nfs:0:nfs_client isn't part of this structure.
1014  */
1015 struct nfs_stats {
1016         kstat_named_t           *nfs_stats_svstat_ptr[NFS_VERSMAX + 1];
1017         struct nfs_version_stats        nfs_stats_v2;
1018         struct nfs_version_stats        nfs_stats_v3;
1019         struct nfs_version_stats        nfs_stats_v4;
1020 };
1021 
1022 /*
1023  * Key used to retrieve counters.
1024  */
1025 extern zone_key_t nfsstat_zone_key;
1026 
1027 /*
1028  * Zone callback functions.
1029  */
1030 extern void     *nfsstat_zone_init(zoneid_t);
1031 extern void     nfsstat_zone_fini(zoneid_t, void *);
1032 
1033 #endif  /* _KERNEL */
1034 
1035 /*
1036  * Version 3 declarations and definitions.
1037  */
1038 
1039 #define NFS3_FHSIZE 64
1040 #define NFS3_COOKIEVERFSIZE 8
1041 #define NFS3_CREATEVERFSIZE 8
1042 #define NFS3_WRITEVERFSIZE 8
1043 
1044 typedef char *filename3;
1045 
1046 typedef char *nfspath3;
1047 
1048 #define nfs3nametoolong ((char *)-1)
1049 
1050 typedef uint64 fileid3;
1051 
1052 typedef uint64 cookie3;
1053 
1054 typedef uint32 uid3;
1055 
1056 typedef uint32 gid3;
1057 
1058 typedef uint64 size3;
1059 
1060 typedef uint64 offset3;
1061 
1062 typedef uint32 mode3;
1063 
1064 typedef uint32 count3;
1065 
1066 /*
1067  * These three are really opaque arrays, but we treat them as
1068  * uint64 for efficiency sake
1069  */
1070 typedef uint64 cookieverf3;
1071 
1072 typedef uint64 createverf3;
1073 
1074 typedef uint64 writeverf3;
1075 
1076 typedef struct nfs_fh3 {
1077         uint_t fh3_length;
1078         union nfs_fh3_u {
1079                 struct nfs_fh3_i {
1080                         fhandle3_t fh3_i;
1081                 } nfs_fh3_i;
1082                 char data[NFS3_FHSIZE];
1083         } fh3_u;
1084         uint_t fh3_flags;
1085 } nfs_fh3;
1086 #define fh3_fsid        fh3_u.nfs_fh3_i.fh3_i._fh3_fsid
1087 #define fh3_len         fh3_u.nfs_fh3_i.fh3_i._fh3_len
1088 #define fh3_data        fh3_u.nfs_fh3_i.fh3_i._fh3_data
1089 #define fh3_xlen        fh3_u.nfs_fh3_i.fh3_i._fh3_xlen
1090 #define fh3_xdata       fh3_u.nfs_fh3_i.fh3_i._fh3_xdata
1091 #define FH3TOFIDP(fh)   ((fid_t *)&((fh)->fh3_len))
1092 #define FH3TOXFIDP(fh)  ((fid_t *)&((fh)->fh3_xlen))
1093 
1094 /*
1095  * nfs_fh3.fh3_flags values
1096  */
1097 #define FH_WEBNFS       0x1     /* fh is WebNFS overloaded - see makefh3_ol() */
1098 
1099 /*
1100  * Two elements were added to the
1101  * diropargs3 structure for performance (xdr-inlining).
1102  * They are not included as part of the args
1103  * that are encoded or decoded:
1104  * dirp - ptr to the nfs_fh3
1105  * flag indicating when to free the name that was
1106  * allocated during decode.
1107  */
1108 struct diropargs3 {
1109         nfs_fh3 *dirp;
1110         nfs_fh3 dir;
1111         filename3 name;
1112         int flags;
1113 };
1114 typedef struct diropargs3 diropargs3;
1115 
1116 struct nfstime3 {
1117         uint32 seconds;
1118         uint32 nseconds;
1119 };
1120 typedef struct nfstime3 nfstime3;
1121 
1122 struct specdata3 {
1123         uint32 specdata1;
1124         uint32 specdata2;
1125 };
1126 typedef struct specdata3 specdata3;
1127 
1128 enum nfsstat3 {
1129         NFS3_OK = 0,
1130         NFS3ERR_PERM = 1,
1131         NFS3ERR_NOENT = 2,
1132         NFS3ERR_IO = 5,
1133         NFS3ERR_NXIO = 6,
1134         NFS3ERR_ACCES = 13,
1135         NFS3ERR_EXIST = 17,
1136         NFS3ERR_XDEV = 18,
1137         NFS3ERR_NODEV = 19,
1138         NFS3ERR_NOTDIR = 20,
1139         NFS3ERR_ISDIR = 21,
1140         NFS3ERR_INVAL = 22,
1141         NFS3ERR_FBIG = 27,
1142         NFS3ERR_NOSPC = 28,
1143         NFS3ERR_ROFS = 30,
1144         NFS3ERR_MLINK = 31,
1145         NFS3ERR_NAMETOOLONG = 63,
1146         NFS3ERR_NOTEMPTY = 66,
1147         NFS3ERR_DQUOT = 69,
1148         NFS3ERR_STALE = 70,
1149         NFS3ERR_REMOTE = 71,
1150         NFS3ERR_BADHANDLE = 10001,
1151         NFS3ERR_NOT_SYNC = 10002,
1152         NFS3ERR_BAD_COOKIE = 10003,
1153         NFS3ERR_NOTSUPP = 10004,
1154         NFS3ERR_TOOSMALL = 10005,
1155         NFS3ERR_SERVERFAULT = 10006,
1156         NFS3ERR_BADTYPE = 10007,
1157         NFS3ERR_JUKEBOX = 10008
1158 };
1159 typedef enum nfsstat3 nfsstat3;
1160 
1161 enum ftype3 {
1162         NF3REG = 1,
1163         NF3DIR = 2,
1164         NF3BLK = 3,
1165         NF3CHR = 4,
1166         NF3LNK = 5,
1167         NF3SOCK = 6,
1168         NF3FIFO = 7
1169 };
1170 typedef enum ftype3 ftype3;
1171 
1172 struct fattr3 {
1173         ftype3 type;
1174         mode3 mode;
1175         uint32 nlink;
1176         uid3 uid;
1177         gid3 gid;
1178         size3 size;
1179         size3 used;
1180         specdata3 rdev;
1181         uint64 fsid;
1182         fileid3 fileid;
1183         nfstime3 atime;
1184         nfstime3 mtime;
1185         nfstime3 ctime;
1186 };
1187 typedef struct fattr3 fattr3;
1188 
1189 #define NFS3_SIZEOF_FATTR3      (21)
1190 
1191 #ifdef _KERNEL
1192 struct fattr3_res {
1193         nfsstat3 status;
1194         vattr_t *vap;
1195         vnode_t *vp;
1196 };
1197 typedef struct fattr3_res fattr3_res;
1198 #endif /* _KERNEL */
1199 
1200 struct post_op_attr {
1201         bool_t attributes;
1202         fattr3 attr;
1203 };
1204 typedef struct post_op_attr post_op_attr;
1205 
1206 #ifdef _KERNEL
1207 struct post_op_vattr {
1208         bool_t          attributes;
1209         fattr3_res      fres;
1210 };
1211 typedef struct post_op_vattr post_op_vattr;
1212 #endif /* _KERNEL */
1213 
1214 struct wcc_attr {
1215         size3 size;
1216         nfstime3 mtime;
1217         nfstime3 ctime;
1218 };
1219 typedef struct wcc_attr wcc_attr;
1220 
1221 struct pre_op_attr {
1222         bool_t attributes;
1223         wcc_attr attr;
1224 };
1225 typedef struct pre_op_attr pre_op_attr;
1226 
1227 struct wcc_data {
1228         pre_op_attr before;
1229         post_op_attr after;
1230 };
1231 typedef struct wcc_data wcc_data;
1232 
1233 struct post_op_fh3 {
1234         bool_t handle_follows;
1235         nfs_fh3 handle;
1236 };
1237 typedef struct post_op_fh3 post_op_fh3;
1238 
1239 enum time_how {
1240         DONT_CHANGE = 0,
1241         SET_TO_SERVER_TIME = 1,
1242         SET_TO_CLIENT_TIME = 2
1243 };
1244 typedef enum time_how time_how;
1245 
1246 struct set_mode3 {
1247         bool_t set_it;
1248         mode3 mode;
1249 };
1250 typedef struct set_mode3 set_mode3;
1251 
1252 struct set_uid3 {
1253         bool_t set_it;
1254         uid3 uid;
1255 };
1256 typedef struct set_uid3 set_uid3;
1257 
1258 struct set_gid3 {
1259         bool_t set_it;
1260         gid3 gid;
1261 };
1262 typedef struct set_gid3 set_gid3;
1263 
1264 struct set_size3 {
1265         bool_t set_it;
1266         size3 size;
1267 };
1268 typedef struct set_size3 set_size3;
1269 
1270 struct set_atime {
1271         time_how set_it;
1272         nfstime3 atime;
1273 };
1274 typedef struct set_atime set_atime;
1275 
1276 struct set_mtime {
1277         time_how set_it;
1278         nfstime3 mtime;
1279 };
1280 typedef struct set_mtime set_mtime;
1281 
1282 struct sattr3 {
1283         set_mode3 mode;
1284         set_uid3 uid;
1285         set_gid3 gid;
1286         set_size3 size;
1287         set_atime atime;
1288         set_mtime mtime;
1289 };
1290 typedef struct sattr3 sattr3;
1291 
1292 /*
1293  * A couple of defines to make resok and resfail look like the
1294  * correct things in a response type independent manner.
1295  */
1296 #define resok   res_u.ok
1297 #define resfail res_u.fail
1298 
1299 struct GETATTR3args {
1300         nfs_fh3 object;
1301 };
1302 typedef struct GETATTR3args GETATTR3args;
1303 
1304 struct GETATTR3resok {
1305         fattr3 obj_attributes;
1306 };
1307 typedef struct GETATTR3resok GETATTR3resok;
1308 
1309 struct GETATTR3res {
1310         nfsstat3 status;
1311         union {
1312                 GETATTR3resok ok;
1313         } res_u;
1314 };
1315 typedef struct GETATTR3res GETATTR3res;
1316 
1317 #ifdef _KERNEL
1318 struct GETATTR3vres {
1319         nfsstat3 status;
1320         fattr3_res fres;
1321 };
1322 typedef struct GETATTR3vres GETATTR3vres;
1323 #endif /* _KERNEL */
1324 
1325 struct sattrguard3 {
1326         bool_t check;
1327         nfstime3 obj_ctime;
1328 };
1329 typedef struct sattrguard3 sattrguard3;
1330 
1331 struct SETATTR3args {
1332         nfs_fh3 object;
1333         sattr3 new_attributes;
1334         sattrguard3 guard;
1335 };
1336 typedef struct SETATTR3args SETATTR3args;
1337 
1338 struct SETATTR3resok {
1339         wcc_data obj_wcc;
1340 };
1341 typedef struct SETATTR3resok SETATTR3resok;
1342 
1343 struct SETATTR3resfail {
1344         wcc_data obj_wcc;
1345 };
1346 typedef struct SETATTR3resfail SETATTR3resfail;
1347 
1348 struct SETATTR3res {
1349         nfsstat3 status;
1350         union {
1351                 SETATTR3resok ok;
1352                 SETATTR3resfail fail;
1353         } res_u;
1354 };
1355 typedef struct SETATTR3res SETATTR3res;
1356 
1357 struct LOOKUP3args {
1358         diropargs3 what;
1359 };
1360 typedef struct LOOKUP3args LOOKUP3args;
1361 
1362 struct LOOKUP3resok {
1363         nfs_fh3 object;
1364         post_op_attr obj_attributes;
1365         post_op_attr dir_attributes;
1366 };
1367 typedef struct LOOKUP3resok LOOKUP3resok;
1368 
1369 struct LOOKUP3resfail {
1370         post_op_attr dir_attributes;
1371 };
1372 typedef struct LOOKUP3resfail LOOKUP3resfail;
1373 
1374 struct LOOKUP3res {
1375         nfsstat3 status;
1376         union {
1377                 LOOKUP3resok ok;
1378                 LOOKUP3resfail fail;
1379         } res_u;
1380 };
1381 typedef struct LOOKUP3res LOOKUP3res;
1382 
1383 #ifdef _KERNEL
1384 struct LOOKUP3vres {
1385         nfsstat3 status;
1386         nfs_fh3 object;
1387         post_op_vattr dir_attributes;
1388         post_op_vattr obj_attributes;
1389 };
1390 typedef struct LOOKUP3vres LOOKUP3vres;
1391 #endif /* _KERNEL */
1392 
1393 struct ACCESS3args {
1394         nfs_fh3 object;
1395         uint32 access;
1396 };
1397 typedef struct ACCESS3args ACCESS3args;
1398 #define ACCESS3_READ 0x1
1399 #define ACCESS3_LOOKUP 0x2
1400 #define ACCESS3_MODIFY 0x4
1401 #define ACCESS3_EXTEND 0x8
1402 #define ACCESS3_DELETE 0x10
1403 #define ACCESS3_EXECUTE 0x20
1404 
1405 struct ACCESS3resok {
1406         post_op_attr obj_attributes;
1407         uint32 access;
1408 };
1409 typedef struct ACCESS3resok ACCESS3resok;
1410 
1411 struct ACCESS3resfail {
1412         post_op_attr obj_attributes;
1413 };
1414 typedef struct ACCESS3resfail ACCESS3resfail;
1415 
1416 struct ACCESS3res {
1417         nfsstat3 status;
1418         union {
1419                 ACCESS3resok ok;
1420                 ACCESS3resfail fail;
1421         } res_u;
1422 };
1423 typedef struct ACCESS3res ACCESS3res;
1424 
1425 struct READLINK3args {
1426         nfs_fh3 symlink;
1427 };
1428 typedef struct READLINK3args READLINK3args;
1429 
1430 struct READLINK3resok {
1431         post_op_attr symlink_attributes;
1432         nfspath3 data;
1433 };
1434 typedef struct READLINK3resok READLINK3resok;
1435 
1436 struct READLINK3resfail {
1437         post_op_attr symlink_attributes;
1438 };
1439 typedef struct READLINK3resfail READLINK3resfail;
1440 
1441 struct READLINK3res {
1442         nfsstat3 status;
1443         union {
1444                 READLINK3resok ok;
1445                 READLINK3resfail fail;
1446         } res_u;
1447 };
1448 typedef struct READLINK3res READLINK3res;
1449 
1450 struct READ3args {
1451         nfs_fh3 file;
1452         offset3 offset;
1453         count3 count;
1454 #ifdef _KERNEL
1455         /* for read using rdma */
1456         char *res_data_val_alt;
1457         struct uio *res_uiop;
1458         struct clist *wlist;
1459         CONN *conn;
1460 #endif
1461 };
1462 typedef struct READ3args READ3args;
1463 
1464 struct READ3resok {
1465         post_op_attr file_attributes;
1466         count3 count;
1467         bool_t eof;
1468         struct {
1469                 uint_t data_len;
1470                 char *data_val;
1471                 mblk_t *mp;
1472         } data;
1473         uint_t size;
1474 #ifdef _KERNEL
1475         uint_t wlist_len;
1476         struct clist *wlist;
1477         frtn_t zcopy;
1478 #endif
1479 };
1480 typedef struct READ3resok READ3resok;
1481 
1482 struct READ3resfail {
1483         post_op_attr file_attributes;
1484 };
1485 typedef struct READ3resfail READ3resfail;
1486 
1487 struct READ3res {
1488         nfsstat3 status;
1489         union {
1490                 READ3resok ok;
1491                 READ3resfail fail;
1492         } res_u;
1493 };
1494 typedef struct READ3res READ3res;
1495 
1496 #ifdef _KERNEL
1497 /*
1498  * READ3 reply that directly decodes fattr3 directly into vattr
1499  */
1500 struct READ3vres {
1501         nfsstat3 status;
1502         struct post_op_vattr pov;
1503         count3 count;
1504         bool_t eof;
1505         struct {
1506                 uint_t data_len;
1507                 char *data_val;
1508         } data;
1509         uint_t size;
1510 
1511         uint_t wlist_len;
1512         struct clist *wlist;
1513 };
1514 typedef struct READ3vres READ3vres;
1515 #endif /* _KERNEL */
1516 
1517 /*
1518  * READ3 reply that uiomoves data directly into a struct uio
1519  * ignores any attributes returned
1520  */
1521 struct READ3uiores {
1522         nfsstat3 status;
1523         count3 count;
1524         bool_t eof;
1525         struct uio *uiop;
1526         uint_t size;            /* maximum reply size */
1527 #ifdef _KERNEL
1528         uint_t wlist_len;
1529         struct clist *wlist;
1530 #endif
1531 };
1532 typedef struct READ3uiores READ3uiores;
1533 
1534 enum stable_how {
1535         UNSTABLE = 0,
1536         DATA_SYNC = 1,
1537         FILE_SYNC = 2
1538 };
1539 typedef enum stable_how stable_how;
1540 
1541 struct WRITE3args {
1542         nfs_fh3 file;
1543         offset3 offset;
1544         count3 count;
1545         stable_how stable;
1546         struct {
1547                 uint_t data_len;
1548                 char *data_val;
1549         } data;
1550         mblk_t *mblk;
1551 #ifdef _KERNEL
1552         struct clist *rlist;
1553         CONN *conn;
1554 #endif
1555 };
1556 typedef struct WRITE3args WRITE3args;
1557 
1558 struct WRITE3resok {
1559         wcc_data file_wcc;
1560         count3 count;
1561         stable_how committed;
1562         writeverf3 verf;
1563 };
1564 typedef struct WRITE3resok WRITE3resok;
1565 
1566 struct WRITE3resfail {
1567         wcc_data file_wcc;
1568 };
1569 typedef struct WRITE3resfail WRITE3resfail;
1570 
1571 struct WRITE3res {
1572         nfsstat3 status;
1573         union {
1574                 WRITE3resok ok;
1575                 WRITE3resfail fail;
1576         } res_u;
1577 };
1578 typedef struct WRITE3res WRITE3res;
1579 
1580 enum createmode3 {
1581         UNCHECKED = 0,
1582         GUARDED = 1,
1583         EXCLUSIVE = 2
1584 };
1585 typedef enum createmode3 createmode3;
1586 
1587 struct createhow3 {
1588         createmode3 mode;
1589         union {
1590                 sattr3 obj_attributes;
1591                 createverf3 verf;
1592         } createhow3_u;
1593 };
1594 typedef struct createhow3 createhow3;
1595 
1596 struct CREATE3args {
1597         diropargs3 where;
1598         createhow3 how;
1599 };
1600 typedef struct CREATE3args CREATE3args;
1601 
1602 struct CREATE3resok {
1603         post_op_fh3 obj;
1604         post_op_attr obj_attributes;
1605         wcc_data dir_wcc;
1606 };
1607 typedef struct CREATE3resok CREATE3resok;
1608 
1609 struct CREATE3resfail {
1610         wcc_data dir_wcc;
1611 };
1612 typedef struct CREATE3resfail CREATE3resfail;
1613 
1614 struct CREATE3res {
1615         nfsstat3 status;
1616         union {
1617                 CREATE3resok ok;
1618                 CREATE3resfail fail;
1619         } res_u;
1620 };
1621 typedef struct CREATE3res CREATE3res;
1622 
1623 struct MKDIR3args {
1624         diropargs3 where;
1625         sattr3 attributes;
1626 };
1627 typedef struct MKDIR3args MKDIR3args;
1628 
1629 struct MKDIR3resok {
1630         post_op_fh3 obj;
1631         post_op_attr obj_attributes;
1632         wcc_data dir_wcc;
1633 };
1634 typedef struct MKDIR3resok MKDIR3resok;
1635 
1636 struct MKDIR3resfail {
1637         wcc_data dir_wcc;
1638 };
1639 typedef struct MKDIR3resfail MKDIR3resfail;
1640 
1641 struct MKDIR3res {
1642         nfsstat3 status;
1643         union {
1644                 MKDIR3resok ok;
1645                 MKDIR3resfail fail;
1646         } res_u;
1647 };
1648 typedef struct MKDIR3res MKDIR3res;
1649 
1650 struct symlinkdata3 {
1651         sattr3 symlink_attributes;
1652         nfspath3 symlink_data;
1653 };
1654 typedef struct symlinkdata3 symlinkdata3;
1655 
1656 struct SYMLINK3args {
1657         diropargs3 where;
1658         symlinkdata3 symlink;
1659 };
1660 typedef struct SYMLINK3args SYMLINK3args;
1661 
1662 struct SYMLINK3resok {
1663         post_op_fh3 obj;
1664         post_op_attr obj_attributes;
1665         wcc_data dir_wcc;
1666 };
1667 typedef struct SYMLINK3resok SYMLINK3resok;
1668 
1669 struct SYMLINK3resfail {
1670         wcc_data dir_wcc;
1671 };
1672 typedef struct SYMLINK3resfail SYMLINK3resfail;
1673 
1674 struct SYMLINK3res {
1675         nfsstat3 status;
1676         union {
1677                 SYMLINK3resok ok;
1678                 SYMLINK3resfail fail;
1679         } res_u;
1680 };
1681 typedef struct SYMLINK3res SYMLINK3res;
1682 
1683 struct devicedata3 {
1684         sattr3 dev_attributes;
1685         specdata3 spec;
1686 };
1687 typedef struct devicedata3 devicedata3;
1688 
1689 struct mknoddata3 {
1690         ftype3 type;
1691         union {
1692                 devicedata3 device;
1693                 sattr3 pipe_attributes;
1694         } mknoddata3_u;
1695 };
1696 typedef struct mknoddata3 mknoddata3;
1697 
1698 struct MKNOD3args {
1699         diropargs3 where;
1700         mknoddata3 what;
1701 };
1702 typedef struct MKNOD3args MKNOD3args;
1703 
1704 struct MKNOD3resok {
1705         post_op_fh3 obj;
1706         post_op_attr obj_attributes;
1707         wcc_data dir_wcc;
1708 };
1709 typedef struct MKNOD3resok MKNOD3resok;
1710 
1711 struct MKNOD3resfail {
1712         wcc_data dir_wcc;
1713 };
1714 typedef struct MKNOD3resfail MKNOD3resfail;
1715 
1716 struct MKNOD3res {
1717         nfsstat3 status;
1718         union {
1719                 MKNOD3resok ok;
1720                 MKNOD3resfail fail;
1721         } res_u;
1722 };
1723 typedef struct MKNOD3res MKNOD3res;
1724 
1725 struct REMOVE3args {
1726         diropargs3 object;
1727 };
1728 typedef struct REMOVE3args REMOVE3args;
1729 
1730 struct REMOVE3resok {
1731         wcc_data dir_wcc;
1732 };
1733 typedef struct REMOVE3resok REMOVE3resok;
1734 
1735 struct REMOVE3resfail {
1736         wcc_data dir_wcc;
1737 };
1738 typedef struct REMOVE3resfail REMOVE3resfail;
1739 
1740 struct REMOVE3res {
1741         nfsstat3 status;
1742         union {
1743                 REMOVE3resok ok;
1744                 REMOVE3resfail fail;
1745         } res_u;
1746 };
1747 typedef struct REMOVE3res REMOVE3res;
1748 
1749 struct RMDIR3args {
1750         diropargs3 object;
1751 };
1752 typedef struct RMDIR3args RMDIR3args;
1753 
1754 struct RMDIR3resok {
1755         wcc_data dir_wcc;
1756 };
1757 typedef struct RMDIR3resok RMDIR3resok;
1758 
1759 struct RMDIR3resfail {
1760         wcc_data dir_wcc;
1761 };
1762 typedef struct RMDIR3resfail RMDIR3resfail;
1763 
1764 struct RMDIR3res {
1765         nfsstat3 status;
1766         union {
1767                 RMDIR3resok ok;
1768                 RMDIR3resfail fail;
1769         } res_u;
1770 };
1771 typedef struct RMDIR3res RMDIR3res;
1772 
1773 struct RENAME3args {
1774         diropargs3 from;
1775         diropargs3 to;
1776 };
1777 typedef struct RENAME3args RENAME3args;
1778 
1779 struct RENAME3resok {
1780         wcc_data fromdir_wcc;
1781         wcc_data todir_wcc;
1782 };
1783 typedef struct RENAME3resok RENAME3resok;
1784 
1785 struct RENAME3resfail {
1786         wcc_data fromdir_wcc;
1787         wcc_data todir_wcc;
1788 };
1789 typedef struct RENAME3resfail RENAME3resfail;
1790 
1791 struct RENAME3res {
1792         nfsstat3 status;
1793         union {
1794                 RENAME3resok ok;
1795                 RENAME3resfail fail;
1796         } res_u;
1797 };
1798 typedef struct RENAME3res RENAME3res;
1799 
1800 struct LINK3args {
1801         nfs_fh3 file;
1802         diropargs3 link;
1803 };
1804 typedef struct LINK3args LINK3args;
1805 
1806 struct LINK3resok {
1807         post_op_attr file_attributes;
1808         wcc_data linkdir_wcc;
1809 };
1810 typedef struct LINK3resok LINK3resok;
1811 
1812 struct LINK3resfail {
1813         post_op_attr file_attributes;
1814         wcc_data linkdir_wcc;
1815 };
1816 typedef struct LINK3resfail LINK3resfail;
1817 
1818 struct LINK3res {
1819         nfsstat3 status;
1820         union {
1821                 LINK3resok ok;
1822                 LINK3resfail fail;
1823         } res_u;
1824 };
1825 typedef struct LINK3res LINK3res;
1826 
1827 struct READDIR3args {
1828         nfs_fh3 dir;
1829         cookie3 cookie;
1830         cookieverf3 cookieverf;
1831         count3 count;
1832 };
1833 typedef struct READDIR3args READDIR3args;
1834 
1835 struct entry3 {
1836         fileid3 fileid;
1837         filename3 name;
1838         cookie3 cookie;
1839         struct entry3 *nextentry;
1840 };
1841 typedef struct entry3 entry3;
1842 
1843 struct dirlist3 {
1844         entry3 *entries;
1845         bool_t eof;
1846 };
1847 typedef struct dirlist3 dirlist3;
1848 
1849 struct READDIR3resok {
1850         post_op_attr dir_attributes;
1851         cookieverf3 cookieverf;
1852         dirlist3 reply;
1853         uint_t size;
1854         uint_t count;
1855         uint_t freecount;
1856         cookie3 cookie;
1857 };
1858 typedef struct READDIR3resok READDIR3resok;
1859 
1860 struct READDIR3resfail {
1861         post_op_attr dir_attributes;
1862 };
1863 typedef struct READDIR3resfail READDIR3resfail;
1864 
1865 struct READDIR3res {
1866         nfsstat3 status;
1867         union {
1868                 READDIR3resok ok;
1869                 READDIR3resfail fail;
1870         } res_u;
1871 };
1872 typedef struct READDIR3res READDIR3res;
1873 
1874 #ifdef _KERNEL
1875 struct READDIR3vres {
1876         nfsstat3 status;
1877         post_op_vattr dir_attributes;
1878         cookieverf3 cookieverf;
1879         dirent64_t *entries;                    /* decoded dirent64s */
1880         uint_t size;                            /* actual size of entries */
1881         uint_t entries_size;                    /* max size of entries */
1882         off64_t loff;                           /* last offset/cookie */
1883         bool_t eof;                             /* End of directory */
1884 };
1885 typedef struct READDIR3vres READDIR3vres;
1886 #endif /* _KERNEL */
1887 
1888 struct READDIRPLUS3args {
1889         nfs_fh3 dir;
1890         cookie3 cookie;
1891         cookieverf3 cookieverf;
1892         count3 dircount;
1893         count3 maxcount;
1894 };
1895 typedef struct READDIRPLUS3args READDIRPLUS3args;
1896 
1897 struct entryplus3 {
1898         fileid3 fileid;
1899         filename3 name;
1900         cookie3 cookie;
1901         post_op_attr name_attributes;
1902         post_op_fh3 name_handle;
1903         struct entryplus3 *nextentry;
1904 };
1905 typedef struct entryplus3 entryplus3;
1906 
1907 struct dirlistplus3 {
1908         entryplus3 *entries;
1909         bool_t eof;
1910 };
1911 typedef struct dirlistplus3 dirlistplus3;
1912 
1913 struct entryplus3_info {
1914         post_op_attr attr;
1915         post_op_fh3 fh;
1916         uint_t namelen;
1917 };
1918 typedef struct entryplus3_info entryplus3_info;
1919 
1920 struct READDIRPLUS3resok {
1921         post_op_attr dir_attributes;
1922         cookieverf3 cookieverf;
1923         dirlistplus3 reply;
1924         uint_t size;
1925         uint_t count;
1926         uint_t maxcount;
1927         entryplus3_info *infop;
1928 };
1929 typedef struct READDIRPLUS3resok READDIRPLUS3resok;
1930 
1931 struct READDIRPLUS3resfail {
1932         post_op_attr dir_attributes;
1933 };
1934 typedef struct READDIRPLUS3resfail READDIRPLUS3resfail;
1935 
1936 struct READDIRPLUS3res {
1937         nfsstat3 status;
1938         union {
1939                 READDIRPLUS3resok ok;
1940                 READDIRPLUS3resfail fail;
1941         } res_u;
1942 };
1943 typedef struct READDIRPLUS3res READDIRPLUS3res;
1944 
1945 #ifdef _KERNEL
1946 struct entryplus3_va_fh {
1947         int va_valid;
1948         int fh_valid;
1949         vattr_t va;
1950         nfs_fh3 fh;
1951         char *d_name;           /* back pointer into entries */
1952 };
1953 
1954 struct READDIRPLUS3vres {
1955         nfsstat3 status;
1956         post_op_vattr dir_attributes;
1957         cookieverf3 cookieverf;
1958         dirent64_t *entries;                    /* decoded dirent64s */
1959         uint_t size;                            /* actual size of entries */
1960         uint_t entries_size;                    /* max size of entries */
1961         bool_t eof;                             /* End of directory */
1962         off64_t loff;                           /* last offset/cookie */
1963         cred_t *credentials;                    /* caller's credentials */
1964         hrtime_t time;                          /* time of READDIRPLUS call */
1965 };
1966 typedef struct READDIRPLUS3vres READDIRPLUS3vres;
1967 #endif /* _KERNEL */
1968 
1969 struct FSSTAT3args {
1970         nfs_fh3 fsroot;
1971 };
1972 typedef struct FSSTAT3args FSSTAT3args;
1973 
1974 struct FSSTAT3resok {
1975         post_op_attr obj_attributes;
1976         size3 tbytes;
1977         size3 fbytes;
1978         size3 abytes;
1979         size3 tfiles;
1980         size3 ffiles;
1981         size3 afiles;
1982         uint32 invarsec;
1983 };
1984 typedef struct FSSTAT3resok FSSTAT3resok;
1985 
1986 struct FSSTAT3resfail {
1987         post_op_attr obj_attributes;
1988 };
1989 typedef struct FSSTAT3resfail FSSTAT3resfail;
1990 
1991 struct FSSTAT3res {
1992         nfsstat3 status;
1993         union {
1994                 FSSTAT3resok ok;
1995                 FSSTAT3resfail fail;
1996         } res_u;
1997 };
1998 typedef struct FSSTAT3res FSSTAT3res;
1999 
2000 struct FSINFO3args {
2001         nfs_fh3 fsroot;
2002 };
2003 typedef struct FSINFO3args FSINFO3args;
2004 
2005 struct FSINFO3resok {
2006         post_op_attr obj_attributes;
2007         uint32 rtmax;
2008         uint32 rtpref;
2009         uint32 rtmult;
2010         uint32 wtmax;
2011         uint32 wtpref;
2012         uint32 wtmult;
2013         uint32 dtpref;
2014         size3 maxfilesize;
2015         nfstime3 time_delta;
2016         uint32 properties;
2017 };
2018 typedef struct FSINFO3resok FSINFO3resok;
2019 
2020 struct FSINFO3resfail {
2021         post_op_attr obj_attributes;
2022 };
2023 typedef struct FSINFO3resfail FSINFO3resfail;
2024 #define FSF3_LINK 0x1
2025 #define FSF3_SYMLINK 0x2
2026 #define FSF3_HOMOGENEOUS 0x8
2027 #define FSF3_CANSETTIME 0x10
2028 
2029 struct FSINFO3res {
2030         nfsstat3 status;
2031         union {
2032                 FSINFO3resok ok;
2033                 FSINFO3resfail fail;
2034         } res_u;
2035 };
2036 typedef struct FSINFO3res FSINFO3res;
2037 
2038 struct PATHCONF3args {
2039         nfs_fh3 object;
2040 };
2041 typedef struct PATHCONF3args PATHCONF3args;
2042 
2043 struct nfs3_pathconf_info {
2044         uint32 link_max;
2045         uint32 name_max;
2046         bool_t no_trunc;
2047         bool_t chown_restricted;
2048         bool_t case_insensitive;
2049         bool_t case_preserving;
2050 };
2051 typedef struct nfs3_pathconf_info nfs3_pathconf_info;
2052 
2053 struct PATHCONF3resok {
2054         post_op_attr obj_attributes;
2055         nfs3_pathconf_info info;
2056 };
2057 typedef struct PATHCONF3resok PATHCONF3resok;
2058 
2059 struct PATHCONF3resfail {
2060         post_op_attr obj_attributes;
2061 };
2062 typedef struct PATHCONF3resfail PATHCONF3resfail;
2063 
2064 struct PATHCONF3res {
2065         nfsstat3 status;
2066         union {
2067                 PATHCONF3resok ok;
2068                 PATHCONF3resfail fail;
2069         } res_u;
2070 };
2071 typedef struct PATHCONF3res PATHCONF3res;
2072 
2073 struct COMMIT3args {
2074         nfs_fh3 file;
2075         offset3 offset;
2076         count3 count;
2077 };
2078 typedef struct COMMIT3args COMMIT3args;
2079 
2080 struct COMMIT3resok {
2081         wcc_data file_wcc;
2082         writeverf3 verf;
2083 };
2084 typedef struct COMMIT3resok COMMIT3resok;
2085 
2086 struct COMMIT3resfail {
2087         wcc_data file_wcc;
2088 };
2089 typedef struct COMMIT3resfail COMMIT3resfail;
2090 
2091 struct COMMIT3res {
2092         nfsstat3 status;
2093         union {
2094                 COMMIT3resok ok;
2095                 COMMIT3resfail fail;
2096         } res_u;
2097 };
2098 typedef struct COMMIT3res COMMIT3res;
2099 
2100 #define NFS3_PROGRAM ((rpcprog_t)100003)
2101 #define NFS_V3 ((rpcvers_t)3)
2102 #define NFSPROC3_NULL ((rpcproc_t)0)
2103 #define NFSPROC3_GETATTR ((rpcproc_t)1)
2104 #define NFSPROC3_SETATTR ((rpcproc_t)2)
2105 #define NFSPROC3_LOOKUP ((rpcproc_t)3)
2106 #define NFSPROC3_ACCESS ((rpcproc_t)4)
2107 #define NFSPROC3_READLINK ((rpcproc_t)5)
2108 #define NFSPROC3_READ ((rpcproc_t)6)
2109 #define NFSPROC3_WRITE ((rpcproc_t)7)
2110 #define NFSPROC3_CREATE ((rpcproc_t)8)
2111 #define NFSPROC3_MKDIR ((rpcproc_t)9)
2112 #define NFSPROC3_SYMLINK ((rpcproc_t)10)
2113 #define NFSPROC3_MKNOD ((rpcproc_t)11)
2114 #define NFSPROC3_REMOVE ((rpcproc_t)12)
2115 #define NFSPROC3_RMDIR ((rpcproc_t)13)
2116 #define NFSPROC3_RENAME ((rpcproc_t)14)
2117 #define NFSPROC3_LINK ((rpcproc_t)15)
2118 #define NFSPROC3_READDIR ((rpcproc_t)16)
2119 #define NFSPROC3_READDIRPLUS ((rpcproc_t)17)
2120 #define NFSPROC3_FSSTAT ((rpcproc_t)18)
2121 #define NFSPROC3_FSINFO ((rpcproc_t)19)
2122 #define NFSPROC3_PATHCONF ((rpcproc_t)20)
2123 #define NFSPROC3_COMMIT ((rpcproc_t)21)
2124 
2125 #ifndef _KERNEL
2126 extern void             *nfsproc3_null_3();
2127 extern GETATTR3res      *nfsproc3_getattr_3();
2128 extern SETATTR3res      *nfsproc3_setattr_3();
2129 extern LOOKUP3res       *nfsproc3_lookup_3();
2130 extern ACCESS3res       *nfsproc3_access_3();
2131 extern READLINK3res     *nfsproc3_readlink_3();
2132 extern READ3res *nfsproc3_read_3();
2133 extern WRITE3res        *nfsproc3_write_3();
2134 extern CREATE3res       *nfsproc3_create_3();
2135 extern MKDIR3res        *nfsproc3_mkdir_3();
2136 extern SYMLINK3res      *nfsproc3_symlink_3();
2137 extern MKNOD3res        *nfsproc3_mknod_3();
2138 extern REMOVE3res       *nfsproc3_remove_3();
2139 extern RMDIR3res        *nfsproc3_rmdir_3();
2140 extern RENAME3res       *nfsproc3_rename_3();
2141 extern LINK3res *nfsproc3_link_3();
2142 extern READDIR3res      *nfsproc3_readdir_3();
2143 extern READDIRPLUS3res  *nfsproc3_readdirplus_3();
2144 extern FSSTAT3res       *nfsproc3_fsstat_3();
2145 extern FSINFO3res       *nfsproc3_fsinfo_3();
2146 extern PATHCONF3res     *nfsproc3_pathconf_3();
2147 extern COMMIT3res       *nfsproc3_commit_3();
2148 #endif  /* !_KERNEL */
2149 
2150 #ifdef _KERNEL
2151 /* the NFS Version 3 XDR functions */
2152 
2153 extern bool_t xdr_nfs_fh3(XDR *, nfs_fh3 *);
2154 extern bool_t xdr_nfslog_nfs_fh3(XDR *, nfs_fh3 *);
2155 extern bool_t xdr_nfs_fh3_server(XDR *, nfs_fh3 *);
2156 extern bool_t xdr_diropargs3(XDR *, diropargs3 *);
2157 extern bool_t xdr_post_op_attr(XDR *, post_op_attr *);
2158 extern bool_t xdr_post_op_fh3(XDR *, post_op_fh3 *);
2159 extern bool_t xdr_GETATTR3res(XDR *, GETATTR3res *);
2160 extern bool_t xdr_GETATTR3vres(XDR *, GETATTR3vres *);
2161 extern bool_t xdr_SETATTR3args(XDR *, SETATTR3args *);
2162 extern bool_t xdr_SETATTR3res(XDR *, SETATTR3res *);
2163 extern bool_t xdr_LOOKUP3res(XDR *, LOOKUP3res *);
2164 extern bool_t xdr_LOOKUP3vres(XDR *, LOOKUP3vres *);
2165 extern bool_t xdr_ACCESS3args(XDR *, ACCESS3args *);
2166 extern bool_t xdr_ACCESS3res(XDR *, ACCESS3res *);
2167 extern bool_t xdr_READLINK3args(XDR *, READLINK3args *);
2168 extern bool_t xdr_READLINK3res(XDR *, READLINK3res *);
2169 extern bool_t xdr_READ3args(XDR *, READ3args *);
2170 extern bool_t xdr_READ3res(XDR *, READ3res *);
2171 extern bool_t xdr_READ3vres(XDR *, READ3vres *);
2172 extern bool_t xdr_READ3uiores(XDR *, READ3uiores *);
2173 extern bool_t xdr_WRITE3args(XDR *, WRITE3args *);
2174 extern bool_t xdr_WRITE3res(XDR *, WRITE3res *);
2175 extern bool_t xdr_CREATE3args(XDR *, CREATE3args *);
2176 extern bool_t xdr_CREATE3res(XDR *, CREATE3res *);
2177 extern bool_t xdr_MKDIR3args(XDR *, MKDIR3args *);
2178 extern bool_t xdr_MKDIR3res(XDR *, MKDIR3res *);
2179 extern bool_t xdr_SYMLINK3args(XDR *, SYMLINK3args *);
2180 extern bool_t xdr_SYMLINK3res(XDR *, SYMLINK3res *);
2181 extern bool_t xdr_MKNOD3args(XDR *, MKNOD3args *);
2182 extern bool_t xdr_MKNOD3res(XDR *, MKNOD3res *);
2183 extern bool_t xdr_REMOVE3res(XDR *, REMOVE3res *);
2184 extern bool_t xdr_RMDIR3resfail(XDR *, RMDIR3resfail *);
2185 extern bool_t xdr_RMDIR3res(XDR *, RMDIR3res *);
2186 extern bool_t xdr_RENAME3args(XDR *, RENAME3args *);
2187 extern bool_t xdr_RENAME3res(XDR *, RENAME3res *);
2188 extern bool_t xdr_LINK3args(XDR *, LINK3args *);
2189 extern bool_t xdr_LINK3res(XDR *, LINK3res *);
2190 extern bool_t xdr_READDIR3args(XDR *, READDIR3args *);
2191 extern bool_t xdr_READDIR3res(XDR *, READDIR3res *);
2192 extern bool_t xdr_READDIR3vres(XDR *, READDIR3vres *);
2193 extern bool_t xdr_READDIRPLUS3args(XDR *, READDIRPLUS3args *);
2194 extern bool_t xdr_READDIRPLUS3res(XDR *, READDIRPLUS3res *);
2195 extern bool_t xdr_READDIRPLUS3vres(XDR *, READDIRPLUS3vres *);
2196 extern bool_t xdr_FSSTAT3res(XDR *, FSSTAT3res *);
2197 extern bool_t xdr_FSINFO3res(XDR *, FSINFO3res *);
2198 extern bool_t xdr_PATHCONF3res(XDR *, PATHCONF3res *);
2199 extern bool_t xdr_COMMIT3args(XDR *, COMMIT3args *);
2200 extern bool_t xdr_COMMIT3res(XDR *, COMMIT3res *);
2201 extern bool_t xdr_fastnfs_fh3(XDR *, nfs_fh3 **);
2202 
2203 /*
2204  * The NFS Version 3 service procedures.
2205  */
2206 struct exportinfo;      /* defined in nfs/export.h */
2207 struct servinfo;        /* defined in nfs/nfs_clnt.h */
2208 struct mntinfo;         /* defined in nfs/nfs_clnt.h */
2209 struct sec_ol;          /* defined in nfs/export.h */
2210 
2211 extern void     rfs3_getattr(GETATTR3args *, GETATTR3res *, struct exportinfo *,
2212     struct svc_req *, cred_t *, bool_t);
2213 extern void     *rfs3_getattr_getfh(GETATTR3args *);
2214 extern void     rfs3_setattr(SETATTR3args *, SETATTR3res *, struct exportinfo *,
2215     struct svc_req *, cred_t *, bool_t);
2216 extern void     *rfs3_setattr_getfh(SETATTR3args *);
2217 extern void     rfs3_lookup(LOOKUP3args *, LOOKUP3res *, struct exportinfo *,
2218     struct svc_req *, cred_t *, bool_t);
2219 extern void     *rfs3_lookup_getfh(LOOKUP3args *);
2220 extern void     rfs3_access(ACCESS3args *, ACCESS3res *, struct exportinfo *,
2221     struct svc_req *, cred_t *, bool_t);
2222 extern void     *rfs3_access_getfh(ACCESS3args *);
2223 extern void     rfs3_readlink(READLINK3args *, READLINK3res *,
2224     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
2225 extern void     *rfs3_readlink_getfh(READLINK3args *);
2226 extern void     rfs3_readlink_free(READLINK3res *);
2227 extern void     rfs3_read(READ3args *, READ3res *, struct exportinfo *,
2228     struct svc_req *, cred_t *, bool_t);
2229 extern void     *rfs3_read_getfh(READ3args *);
2230 extern void     rfs3_read_free(READ3res *);
2231 extern void     rfs3_write(WRITE3args *, WRITE3res *, struct exportinfo *,
2232     struct svc_req *, cred_t *, bool_t);
2233 extern void     *rfs3_write_getfh(WRITE3args *);
2234 extern void     rfs3_create(CREATE3args *, CREATE3res *, struct exportinfo *,
2235     struct svc_req *, cred_t *, bool_t);
2236 extern void     *rfs3_create_getfh(CREATE3args *);
2237 extern void     rfs3_mkdir(MKDIR3args *, MKDIR3res *, struct exportinfo *,
2238     struct svc_req *, cred_t *, bool_t);
2239 extern void     *rfs3_mkdir_getfh(MKDIR3args *);
2240 extern void     rfs3_symlink(SYMLINK3args *, SYMLINK3res *, struct exportinfo *,
2241     struct svc_req *, cred_t *, bool_t);
2242 extern void     *rfs3_symlink_getfh(SYMLINK3args *);
2243 extern void     rfs3_mknod(MKNOD3args *, MKNOD3res *, struct exportinfo *,
2244     struct svc_req *, cred_t *, bool_t);
2245 extern void     *rfs3_mknod_getfh(MKNOD3args *);
2246 extern void     rfs3_remove(REMOVE3args *, REMOVE3res *, struct exportinfo *,
2247     struct svc_req *, cred_t *, bool_t);
2248 extern void     *rfs3_remove_getfh(REMOVE3args *);
2249 extern void     rfs3_rmdir(RMDIR3args *, RMDIR3res *, struct exportinfo *,
2250     struct svc_req *, cred_t *, bool_t);
2251 extern void     *rfs3_rmdir_getfh(RMDIR3args *);
2252 extern void     rfs3_rename(RENAME3args *, RENAME3res *, struct exportinfo *,
2253     struct svc_req *, cred_t *, bool_t);
2254 extern void     *rfs3_rename_getfh(RENAME3args *);
2255 extern void     rfs3_link(LINK3args *, LINK3res *, struct exportinfo *,
2256     struct svc_req *, cred_t *, bool_t);
2257 extern void     *rfs3_link_getfh(LINK3args *);
2258 extern void     rfs3_readdir(READDIR3args *, READDIR3res *, struct exportinfo *,
2259     struct svc_req *, cred_t *, bool_t);
2260 extern void     *rfs3_readdir_getfh(READDIR3args *);
2261 extern void     rfs3_readdir_free(READDIR3res *);
2262 extern void     rfs3_readdirplus(READDIRPLUS3args *, READDIRPLUS3res *,
2263     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
2264 extern void     *rfs3_readdirplus_getfh(READDIRPLUS3args *);
2265 extern void     rfs3_readdirplus_free(READDIRPLUS3res *);
2266 extern void     rfs3_fsstat(FSSTAT3args *, FSSTAT3res *, struct exportinfo *,
2267     struct svc_req *, cred_t *, bool_t);
2268 extern void     *rfs3_fsstat_getfh(FSSTAT3args *);
2269 extern void     rfs3_fsinfo(FSINFO3args *, FSINFO3res *, struct exportinfo *,
2270     struct svc_req *, cred_t *, bool_t);
2271 extern void     *rfs3_fsinfo_getfh(FSINFO3args *);
2272 extern void     rfs3_pathconf(PATHCONF3args *, PATHCONF3res *,
2273     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
2274 extern void     *rfs3_pathconf_getfh(PATHCONF3args *);
2275 extern void     rfs3_commit(COMMIT3args *, COMMIT3res *, struct exportinfo *,
2276     struct svc_req *, cred_t *, bool_t);
2277 extern void     *rfs3_commit_getfh(COMMIT3args *);
2278 extern void     rfs3_srvrinit(void);
2279 extern void     rfs3_srvrfini(void);
2280 
2281 extern int      nfs3_validate_caches(vnode_t *, cred_t *);
2282 extern void     nfs3_cache_post_op_attr(vnode_t *, post_op_attr *, hrtime_t,
2283     cred_t *);
2284 extern void     nfs3_cache_post_op_vattr(vnode_t *, post_op_vattr *, hrtime_t,
2285     cred_t *);
2286 extern void     nfs3_cache_wcc_data(vnode_t *, wcc_data *, hrtime_t, cred_t *);
2287 extern void     nfs3_attrcache(vnode_t *, fattr3 *, hrtime_t);
2288 extern int      nfs3_cache_fattr3(vnode_t *, fattr3 *, vattr_t *, hrtime_t,
2289     cred_t *);
2290 extern int      nfs3_getattr_otw(vnode_t *, struct vattr *, cred_t *);
2291 extern int      nfs3getattr(vnode_t *, struct vattr *, cred_t *);
2292 extern int      fattr3_to_vattr(vnode_t *, fattr3 *, struct vattr *);
2293 extern int      nfs3tsize(void);
2294 extern uint_t   nfs3_tsize(struct knetconfig *);
2295 extern uint_t   rfs3_tsize(struct svc_req *);
2296 extern int      vattr_to_sattr3(struct vattr *, sattr3 *);
2297 extern void     setdiropargs3(diropargs3 *, char *, vnode_t *);
2298 extern enum nfsstat3 puterrno3(int);
2299 extern int      geterrno3(enum nfsstat3);
2300 extern int      nfs3init(int, char *);
2301 extern void     nfs3fini(void);
2302 extern int      nfs3_vfsinit(void);
2303 extern void     nfs3_vfsfini(void);
2304 extern void     vattr_to_post_op_attr(struct vattr *, post_op_attr *);
2305 extern void     mblk_to_iov(mblk_t *, int, struct iovec *);
2306 extern int      rfs_publicfh_mclookup(char *, vnode_t *, cred_t *, vnode_t **,
2307     struct exportinfo **, struct sec_ol *);
2308 extern int      rfs_pathname(char *, vnode_t **, vnode_t **, vnode_t *,
2309     cred_t *, int);
2310 extern int      rfs_cross_mnt(vnode_t **, struct exportinfo **);
2311 extern int      rfs_climb_crossmnt(vnode_t **, struct exportinfo **, cred_t *);
2312 
2313 extern vtype_t          nf3_to_vt[];
2314 extern kstat_named_t    *rfsproccnt_v3_ptr;
2315 extern vfsops_t         *nfs3_vfsops;
2316 extern struct vnodeops  *nfs3_vnodeops;
2317 extern const struct fs_operation_def nfs3_vnodeops_template[];
2318 
2319 /*
2320  * Some servers do not properly update the attributes of the
2321  * directory when changes are made.  To allow interoperability
2322  * with these broken servers, the nfs_disable_rddir_cache
2323  * parameter can be used to disable readdir response caching.
2324  */
2325 extern int              nfs_disable_rddir_cache;
2326 
2327 /*
2328  * External functions called by the v2/v3 code into the v4 code
2329  */
2330 extern void     nfs4_clnt_init(void);
2331 extern void     nfs4_clnt_fini(void);
2332 
2333 /*
2334  * Does NFS4 server have a vnode delegated?  TRUE if so, FALSE if not.
2335  */
2336 extern bool_t   rfs4_check_delegated(int mode, vnode_t *, bool_t trunc);
2337 /*
2338  * VOP_GETATTR call. If a NFS4 delegation is present on the supplied vnode
2339  * call back to the delegated client to get attributes for AT_MTIME and
2340  * AT_SIZE. Invoke VOP_GETATTR to get all other attributes or all attributes
2341  * if no delegation is present.
2342  */
2343 extern int      rfs4_delegated_getattr(vnode_t *, vattr_t *, int, cred_t *);
2344 
2345 extern int      do_xattr_exists_check(vnode_t *, ulong_t *, cred_t *);
2346 
2347 extern int      protect_zfs_mntpt(vnode_t *);
2348 
2349 extern ts_label_t *nfs_getflabel(vnode_t *, struct exportinfo *);
2350 extern boolean_t do_rfs_label_check(bslabel_t *, vnode_t *, int,
2351     struct exportinfo *);
2352 
2353 /*
2354  * Copy Reduction support.
2355  * xuio_t wrapper with additional private data.
2356  */
2357 
2358 typedef struct nfs_xuio {
2359         xuio_t nu_uio;
2360         vnode_t *nu_vp;
2361         uint_t nu_ref;
2362         frtn_t nu_frtn;
2363 } nfs_xuio_t;
2364 
2365 extern xuio_t   *rfs_setup_xuio(vnode_t *);
2366 extern mblk_t   *uio_to_mblk(uio_t *);
2367 extern mblk_t   *rfs_read_alloc(uint_t, struct iovec **, int *);
2368 extern void     rfs_rndup_mblks(mblk_t *, uint_t, int);
2369 extern void     rfs_free_xuio(void *);
2370 
2371 #endif  /* _KERNEL */
2372 
2373 #ifdef  __cplusplus
2374 }
2375 #endif
2376 
2377 #endif  /* _NFS_NFS_H */