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