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 (c) 2013 by Delphix. All rights reserved.
  31  * Copyright 2019 Nexenta by DDN, Inc. 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 /* Forward declarations for nfs_globals */
  89 struct nfs_export;
  90 struct nfs_srv;
  91 struct nfs3_srv;
  92 struct nfs4_srv;
  93 struct nfsauth_globals;
  94 
  95 /*
  96  * Zone globals variables of NFS server
  97  */
  98 typedef struct nfs_globals {
  99         list_node_t             nfs_g_link;     /* all globals list */
 100 
 101         rpcvers_t               nfs_versmin;
 102         rpcvers_t               nfs_versmax;
 103 
 104         /* NFS server locks and state */
 105         nfs_server_running_t    nfs_server_upordown;
 106         kmutex_t                nfs_server_upordown_lock;
 107         kcondvar_t              nfs_server_upordown_cv;
 108 
 109         /* RDMA wait variables */
 110         kcondvar_t              rdma_wait_cv;
 111         kmutex_t                rdma_wait_mutex;
 112 
 113         zoneid_t                nfs_zoneid;
 114         /* Per-zone data structures private to each module */
 115         struct nfs_export       *nfs_export;    /* nfs_export.c */
 116         struct nfs_srv          *nfs_srv;       /* nfs_srv.c */
 117         struct nfs3_srv         *nfs3_srv;      /* nfs3_srv.c */
 118         struct nfs4_srv         *nfs4_srv;      /* nfs4_srv.c */
 119         struct nfsauth_globals  *nfs_auth;      /* nfs_auth.c */
 120 
 121         /* statistic: nfs_stat.c, etc. */
 122         kstat_named_t           *svstat[NFS_VERSMAX + 1];
 123         kstat_named_t           *rfsproccnt[NFS_VERSMAX + 1];
 124         kstat_named_t           *aclproccnt[NFS_VERSMAX + 1];
 125 } nfs_globals_t;
 126 
 127 /*
 128  * Default delegation setting for the server ==> "on"
 129  */
 130 #define NFS_SERVER_DELEGATION_DEFAULT   (TRUE)
 131 
 132 /* Maximum size of data portion of a remote request */
 133 #define NFS_MAXDATA     8192
 134 #define NFS_MAXNAMLEN   255
 135 #define NFS_MAXPATHLEN  1024
 136 
 137 /*
 138  * Rpc retransmission parameters
 139  */
 140 #define NFS_TIMEO       11      /* initial timeout for clts in 10th of a sec */
 141 #define NFS_RETRIES     5       /* times to retry request */
 142 #define NFS_COTS_TIMEO  600     /* initial timeout for cots in 10th of a sec */
 143 
 144 /*
 145  * The value of UID_NOBODY/GID_NOBODY presented to the world via NFS.
 146  * UID_NOBODY/GID_NOBODY is translated to NFS_UID_NOBODY/NFS_GID_NOBODY
 147  * when being sent out over the network and NFS_UID_NOBODY/NFS_GID_NOBODY
 148  * is translated to UID_NOBODY/GID_NOBODY when received.
 149  */
 150 #define NFS_UID_NOBODY  -2
 151 #define NFS_GID_NOBODY  -2
 152 
 153 /*
 154  * maximum transfer size for different interfaces
 155  */
 156 #define ECTSIZE 2048
 157 #define IETSIZE 8192
 158 
 159 /*
 160  * WebNFS error status
 161  */
 162 enum wnfsstat {
 163         WNFSERR_CLNT_FLAVOR = 20001     /* invalid client sec flavor */
 164 };
 165 
 166 /*
 167  * Error status
 168  * Should include all possible net errors.
 169  * For now we just cast errno into an enum nfsstat.
 170  */
 171 enum nfsstat {
 172         NFS_OK = 0,                     /* no error */
 173         NFSERR_PERM = 1,                /* Not owner */
 174         NFSERR_NOENT = 2,               /* No such file or directory */
 175         NFSERR_IO = 5,                  /* I/O error */
 176         NFSERR_NXIO = 6,                /* No such device or address */
 177         NFSERR_ACCES = 13,              /* Permission denied */
 178         NFSERR_EXIST = 17,              /* File exists */
 179         NFSERR_XDEV = 18,               /* Cross-device link */
 180         NFSERR_NODEV = 19,              /* No such device */
 181         NFSERR_NOTDIR = 20,             /* Not a directory */
 182         NFSERR_ISDIR = 21,              /* Is a directory */
 183         NFSERR_INVAL = 22,              /* Invalid argument */
 184         NFSERR_FBIG = 27,               /* File too large */
 185         NFSERR_NOSPC = 28,              /* No space left on device */
 186         NFSERR_ROFS = 30,               /* Read-only file system */
 187         NFSERR_OPNOTSUPP = 45,          /* Operation not supported */
 188         NFSERR_NAMETOOLONG = 63,        /* File name too long */
 189         NFSERR_NOTEMPTY = 66,           /* Directory not empty */
 190         NFSERR_DQUOT = 69,              /* Disc quota exceeded */
 191         NFSERR_STALE = 70,              /* Stale NFS file handle */
 192         NFSERR_REMOTE = 71,             /* Object is remote */
 193         NFSERR_WFLUSH = 99              /* write cache flushed */
 194 };
 195 
 196 typedef enum nfsstat nfsstat;
 197 
 198 /*
 199  * File types
 200  */
 201 enum nfsftype {
 202         NFNON,
 203         NFREG,          /* regular file */
 204         NFDIR,          /* directory */
 205         NFBLK,          /* block special */
 206         NFCHR,          /* character special */
 207         NFLNK,          /* symbolic link */
 208         NFSOC           /* socket */
 209 };
 210 
 211 /*
 212  * Macros for converting device numbers to and from the format
 213  * SunOS 4.x used. SVR4 uses 14 bit majors and 18 bits minors,
 214  * SunOS 4.x used 8 bit majors and 8 bit minors. It isn't sufficient
 215  * to use the cmpdev() and expdev() macros because they only compress
 216  * 7 bit (and smaller) majors. We must compress 8 bit majors too.
 217  * If the major or minor exceeds 8 bits, then we send it out in
 218  * full 32 bit format and hope that the peer can deal with it.
 219  */
 220 
 221 #define SO4_BITSMAJOR   8       /* # of SunOS 4.x major device bits */
 222 #define SO4_BITSMINOR   8       /* # of SunOS 4.x minor device bits */
 223 #define SO4_MAXMAJ      0xff    /* SunOS 4.x max major value */
 224 #define SO4_MAXMIN      0xff    /* SunOS 4.x max minor value */
 225 
 226 /*
 227  * Convert to over-the-wire device number format
 228  */
 229 #define nfsv2_cmpdev(x) \
 230         ((uint32_t) \
 231         ((getmajor(x) > SO4_MAXMAJ || getminor(x) > SO4_MAXMIN) ? NODEV : \
 232         ((getmajor(x) << SO4_BITSMINOR) | (getminor(x) & SO4_MAXMIN))))
 233 
 234 /*
 235  * Convert from over-the-wire format to SVR4 device number format
 236  */
 237 #define nfsv2_expdev(x) \
 238         makedevice((((x) >> SO4_BITSMINOR) & SO4_MAXMAJ), (x) & SO4_MAXMIN)
 239 
 240 /*
 241  * Special kludge for fifos (named pipes)  [to adhere to NFS Protocol Spec]
 242  *
 243  * VFIFO is not in the protocol spec (VNON will be replaced by VFIFO)
 244  * so the over-the-wire representation is VCHR with a '-1' device number.
 245  *
 246  * NOTE: This kludge becomes unnecessary with the Protocol Revision,
 247  *       but it may be necessary to support it (backwards compatibility).
 248  */
 249 #define NFS_FIFO_TYPE   NFCHR
 250 #define NFS_FIFO_MODE   S_IFCHR
 251 #define NFS_FIFO_DEV    ((uint32_t)-1)
 252 
 253 /* identify fifo in nfs attributes */
 254 #define NA_ISFIFO(NA)   (((NA)->na_type == NFS_FIFO_TYPE) && \
 255                             ((NA)->na_rdev == NFS_FIFO_DEV))
 256 
 257 /* set fifo in nfs attributes */
 258 #define NA_SETFIFO(NA)  { \
 259                 (NA)->na_type = NFS_FIFO_TYPE; \
 260                 (NA)->na_rdev = NFS_FIFO_DEV; \
 261                 (NA)->na_mode = ((NA)->na_mode & ~S_IFMT) | NFS_FIFO_MODE; \
 262                 }
 263 
 264 /*
 265  * Check for time overflow using a kernel tunable to determine whether
 266  * we should accept or reject an unsigned 32-bit time value. Time value in NFS
 267  * v2/3 protocol is unsigned 32 bit, but ILP32 kernel only allows 31 bits.
 268  * In nfsv4, time value is a signed 64 bit, so needs to be checked for
 269  * overflow as well (e.g. for setattr). So define the tunable as follows:
 270  * nfs_allow_preepoch_time is TRUE if pre-epoch (negative) times are allowed
 271  * and is FALSE (the default) otherwise. For nfsv2/3 this means that
 272  * if negative times are allowed, the uint32_t time value is interpreted
 273  * as a signed int, otherwise as a large positive number. For nfsv4,
 274  * we use the value as is - except that if negative times are not allowed,
 275  * we will not accept a negative value otw.
 276  *
 277  * So for nfsv2/3 (uint32_t):
 278  *
 279  * If nfs_allow_preepoch_time is
 280  * FALSE, the maximum time value is INT32_MAX for 32-bit kernels and
 281  * UINT32_MAX for 64-bit kernels (to allow times larger than 2038)
 282  * and the minimum is zero. Note that in that case, a 32-bit application
 283  * running on a 64-bit kernel will not be able to access files with
 284  * the larger time values.
 285  * If nfs_allow_preepoch_time is TRUE, the maximum time value is INT32_MAX
 286  * for both kernel configurations and the minimum is INT32_MIN.
 287  *
 288  * And for nfsv4 (int64_t):
 289  *
 290  * nfsv4 allows for negative values in the protocol, and has a 64-bit
 291  * time field, so nfs_allow_preepoch_time can be ignored.
 292  */
 293 #ifdef _KERNEL
 294 
 295 extern bool_t           nfs_allow_preepoch_time;
 296 
 297 #ifdef _LP64
 298 
 299 /*
 300  * If no negative otw values are allowed, may use the full 32-bits of the
 301  * time to represent time later than 2038, by presenting the value as an
 302  * unsigned (but this can only be used by 64-bit apps due to cstat32
 303  * restrictions). If negative values are allowed, cannot represent times
 304  * after 2038. Either way, all 32 bits have a valid representation.
 305  */
 306 
 307 /* Check if nfstime4 seconds (int64_t) can be stored in the system time */
 308 #define NFS4_TIME_OK(tt)        TRUE
 309 
 310 
 311 #define NFS3_TIME_OVERFLOW(tt)  (FALSE)
 312 #define NFS2_TIME_OVERFLOW(tt)  (FALSE)
 313 
 314 /*
 315  * check if a time_t (int64_t) is ok when preepoch times are allowed -
 316  * nfsv2/3: every 32-bit value is accepted, but can't overflow 64->32.
 317  * nfsv4: every value is valid.
 318  */
 319 #define NFS_PREEPOCH_TIME_T_OK(tt)                                      \
 320         (((tt) >= (time_t)INT32_MIN) && ((tt) <= (time_t)INT32_MAX))
 321 
 322 /*
 323  * check if a time_t (int64_t) is ok when preepoch times are not allowed -
 324  * nfsv2/3: every positive 32-bit value is accepted, but can't overflow 64->32.
 325  * nfsv4: every value is valid.
 326  */
 327 #define NFS_NO_PREEPOCH_TIME_T_OK(tt)                                   \
 328         (((tt) >= 0) && ((tt) <= (time_t)(ulong_t)UINT32_MAX))
 329 
 330 #else /* not _LP64 */
 331 
 332 /*
 333  * Cannot represent times after 2038 in a 32-bit kernel, but we may wish to
 334  * restrict the use of negative values (which violate the protocol).
 335  * So if negative times allowed, all uint32 time values are valid. Otherwise
 336  * only those which are less than INT32_MAX (msb=0).
 337  *
 338  * NFSv4 uses int64_t for the time, so in a 32-bit kernel the nfsv4 value
 339  * must fit in an int32_t.
 340  */
 341 
 342 /* Only allow signed 32-bit time values */
 343 
 344 /* Check if an nfstime4 (int64_t) can be stored in the system time */
 345 #define NFS4_TIME_OK(tt)                                                \
 346         (((tt) <= INT32_MAX) &&      ((tt) >= INT32_MIN))
 347 
 348 #define NFS3_TIME_OVERFLOW(tt)  ((tt) > INT32_MAX)
 349 #define NFS2_TIME_OVERFLOW(tt)  ((tt) > INT32_MAX)
 350 
 351 /*
 352  * check if a time_t (int32_t) is ok when preepoch times are allowed -
 353  * every 32-bit value is accepted
 354  */
 355 #define NFS_PREEPOCH_TIME_T_OK(tt)      TRUE
 356 
 357 /*
 358  * check if a time_t (int32_t) is ok when preepoch times are not allowed -
 359  * only positive values are accepted.
 360  */
 361 #define NFS_NO_PREEPOCH_TIME_T_OK(tt)   ((tt) >= 0)
 362 
 363 #endif /* _LP64 */
 364 
 365 /* Check if an nfstime3 (uint32_t) can be stored in the system time */
 366 #define NFS3_TIME_OK(tt)                                                \
 367         (nfs_allow_preepoch_time || (!NFS3_TIME_OVERFLOW(tt)))
 368 
 369 /* Check if an nfs2_timeval (uint32_t) can be stored in the system time. */
 370 #define NFS2_TIME_OK(tt)                                                \
 371         (nfs_allow_preepoch_time || (!NFS2_TIME_OVERFLOW(tt)))
 372 
 373 /*
 374  * Test if time_t (signed long) can be sent over the wire - for v2/3 only if:
 375  * 1. The time value can fit in a uint32_t; and
 376  * 2. Either the time value is positive or allow preepoch times.
 377  * No restrictions for nfsv4.
 378  */
 379 #define NFS_TIME_T_OK(tt)                                               \
 380         (nfs_allow_preepoch_time ?                                      \
 381                 NFS_PREEPOCH_TIME_T_OK(tt) : NFS_NO_PREEPOCH_TIME_T_OK(tt))
 382 
 383 #define NFS4_TIME_T_OK(tt)              TRUE
 384 
 385 /* Test if all attr times are valid */
 386 #define NFS_VAP_TIME_OK(vap)                                            \
 387         (nfs_allow_preepoch_time ?                                      \
 388                 (NFS_PREEPOCH_TIME_T_OK((vap)->va_atime.tv_sec) &&   \
 389                 NFS_PREEPOCH_TIME_T_OK((vap)->va_mtime.tv_sec) &&    \
 390                 NFS_PREEPOCH_TIME_T_OK((vap)->va_ctime.tv_sec)) :    \
 391                 (NFS_NO_PREEPOCH_TIME_T_OK((vap)->va_atime.tv_sec) &&        \
 392                 NFS_NO_PREEPOCH_TIME_T_OK((vap)->va_mtime.tv_sec) && \
 393                 NFS_NO_PREEPOCH_TIME_T_OK((vap)->va_ctime.tv_sec)))
 394 
 395 #define NFS4_VAP_TIME_OK(vap)                   TRUE
 396 
 397 /*
 398  * To extend the sign or not extend the sign, that is the question.
 399  * Note: The correct way is to code a macro:
 400  * #define      NFS_TIME_T_CONVERT(tt)                                  \
 401  *      (nfs_allow_preepoch_time ? (int32_t)(tt) : (uint32_t)(tt))
 402  * But the 64-bit compiler does not extend the sign in that case (why?)
 403  * so we'll do it the ugly way...
 404  */
 405 #define NFS_TIME_T_CONVERT(systt, tt)           \
 406         if (nfs_allow_preepoch_time) {          \
 407                 systt = (int32_t)(tt);          \
 408         } else {                                \
 409                 systt = (uint32_t)(tt);         \
 410         }
 411 
 412 /* macro to check for overflowed time attribute fields - version 3 */
 413 #define NFS3_FATTR_TIME_OK(attrs)                       \
 414         (NFS3_TIME_OK((attrs)->atime.seconds) &&     \
 415         NFS3_TIME_OK((attrs)->mtime.seconds) &&              \
 416         NFS3_TIME_OK((attrs)->ctime.seconds))
 417 
 418 /* macro to check for overflowed time attribute fields - version 2 */
 419 #define NFS2_FATTR_TIME_OK(attrs)                       \
 420         (NFS2_TIME_OK((attrs)->na_atime.tv_sec) &&   \
 421         NFS2_TIME_OK((attrs)->na_mtime.tv_sec) &&    \
 422         NFS2_TIME_OK((attrs)->na_ctime.tv_sec))
 423 
 424 /* Check that a size3 value is not overflowed */
 425 #define NFS3_SIZE_OK(size)      ((size) <= MAXOFFSET_T)
 426 
 427 #endif /* _KERNEL */
 428 
 429 /*
 430  * Size of an fhandle in bytes
 431  */
 432 #define NFS_FHSIZE      32
 433 
 434 struct nfs_fid {
 435         ushort_t nf_len;
 436         ushort_t nf_pad;
 437         char    nf_data[NFS_FHSIZE];
 438 };
 439 
 440 /*
 441  * "Legacy" filehandles use NFS_FHMAXDATA (10) byte fids. Filesystems that
 442  * return a larger fid than NFS_FHMAXDATA, such as ZFS's .zfs snapshot
 443  * directory, can use up to (((64 - 8) / 2) - 2) bytes for their fid.
 444  * This currently holds for both NFSv3 and NFSv4.
 445  */
 446 #define NFS_FHMAXDATA           10
 447 #define NFS_FH3MAXDATA          26
 448 #define NFS_FH4MAXDATA          26
 449 
 450 /*
 451  * The original nfs file handle size for version 3 was 32 which was
 452  * the same in version 2; now we're making it bigger to to deal with
 453  * ZFS snapshot FIDs.
 454  *
 455  * If the size of fhandle3_t changes or if Version 3 uses some other
 456  * filehandle format, this constant may need to change.
 457  */
 458 
 459 #define NFS3_OLDFHSIZE  32
 460 #define NFS3_MAXFHSIZE  64
 461 
 462 /*
 463  * This is the actual definition of a legacy filehandle.  There is some
 464  * dependence on this layout in NFS-related code, particularly in the
 465  * user-level lock manager, so be careful about changing it.
 466  *
 467  * Currently only NFSv2 uses this structure.
 468  */
 469 
 470 typedef struct svcfh {
 471         fsid_t  fh_fsid;                        /* filesystem id */
 472         ushort_t fh_len;                        /* file number length */
 473         char    fh_data[NFS_FHMAXDATA];         /* and data */
 474         ushort_t fh_xlen;                       /* export file number length */
 475         char    fh_xdata[NFS_FHMAXDATA];        /* and data */
 476 } fhandle_t;
 477 
 478 /*
 479  * This is the in-memory structure for an NFSv3 extended filehandle.
 480  */
 481 typedef struct {
 482         fsid_t  _fh3_fsid;                      /* filesystem id */
 483         ushort_t _fh3_len;                      /* file number length */
 484         char    _fh3_data[NFS_FH3MAXDATA];              /* and data */
 485         ushort_t _fh3_xlen;                     /* export file number length */
 486         char    _fh3_xdata[NFS_FH3MAXDATA];     /* and data */
 487 } fhandle3_t;
 488 
 489 /*
 490  * This is the in-memory structure for an NFSv4 extended filehandle.
 491  */
 492 typedef struct {
 493         fsid_t  fhx_fsid;                       /* filesystem id */
 494         ushort_t fhx_len;                       /* file number length */
 495         char    fhx_data[NFS_FH4MAXDATA];       /* and data */
 496         ushort_t fhx_xlen;                      /* export file number length */
 497         char    fhx_xdata[NFS_FH4MAXDATA];      /* and data */
 498 } fhandle4_t;
 499 
 500 /*
 501  * Arguments to remote write and writecache
 502  */
 503 /*
 504  * The `over the wire' representation of the first four arguments.
 505  */
 506 struct otw_nfswriteargs {
 507         fhandle_t       otw_wa_fhandle;
 508         uint32_t        otw_wa_begoff;
 509         uint32_t        otw_wa_offset;
 510         uint32_t        otw_wa_totcount;
 511 };
 512 
 513 struct nfswriteargs {
 514         struct otw_nfswriteargs *wa_args;       /* ptr to the otw arguments */
 515         struct otw_nfswriteargs wa_args_buf;    /* space for otw arguments */
 516         uint32_t        wa_count;
 517         char            *wa_data;       /* data to write (up to NFS_MAXDATA) */
 518         mblk_t          *wa_mblk;       /* pointer to mblks containing data */
 519 #ifdef _KERNEL
 520         /* rdma related info */
 521         struct clist    *wa_rlist;
 522         CONN            *wa_conn;
 523 #endif /* _KERNEL */
 524 };
 525 #define wa_fhandle      wa_args->otw_wa_fhandle
 526 #define wa_begoff       wa_args->otw_wa_begoff
 527 #define wa_offset       wa_args->otw_wa_offset
 528 #define wa_totcount     wa_args->otw_wa_totcount
 529 
 530 /*
 531  * NFS timeval struct using unsigned int as specified in V2 protocol.
 532  * tv_sec and tv_usec used to match existing code.
 533  */
 534 struct nfs2_timeval {
 535         uint32_t tv_sec;
 536         uint32_t tv_usec;
 537 };
 538 typedef struct nfs2_timeval nfs2_timeval;
 539 
 540 /*
 541  * File attributes
 542  */
 543 struct nfsfattr {
 544         enum nfsftype   na_type;        /* file type */
 545         uint32_t        na_mode;        /* protection mode bits */
 546         uint32_t        na_nlink;       /* # hard links */
 547         uint32_t        na_uid;         /* owner user id */
 548         uint32_t        na_gid;         /* owner group id */
 549         uint32_t        na_size;        /* file size in bytes */
 550         uint32_t        na_blocksize;   /* preferred block size */
 551         uint32_t        na_rdev;        /* special device # */
 552         uint32_t        na_blocks;      /* Kb of disk used by file */
 553         uint32_t        na_fsid;        /* device # */
 554         uint32_t        na_nodeid;      /* inode # */
 555         struct nfs2_timeval na_atime;   /* time of last access */
 556         struct nfs2_timeval na_mtime;   /* time of last modification */
 557         struct nfs2_timeval na_ctime;   /* time of last change */
 558 };
 559 
 560 #define n2v_type(x)     (NA_ISFIFO(x) ? VFIFO : nf_to_vt[(x)->na_type])
 561 #define n2v_rdev(x)     (NA_ISFIFO(x) ? 0 : (x)->na_rdev)
 562 
 563 /*
 564  * Arguments to remote read
 565  */
 566 struct nfsreadargs {
 567         fhandle_t       ra_fhandle;     /* handle for file */
 568         uint32_t        ra_offset;      /* byte offset in file */
 569         uint32_t        ra_count;       /* immediate read count */
 570         uint32_t        ra_totcount;    /* total read cnt (from this offset) */
 571 #ifdef _KERNEL
 572         /* used in rdma transports */
 573         caddr_t         ra_data;        /* destination for read data */
 574         struct clist    *ra_wlist;
 575         CONN            *ra_conn;
 576 #endif
 577 };
 578 
 579 /*
 580  * Status OK portion of remote read reply
 581  */
 582 struct nfsrrok {
 583         struct nfsfattr rrok_attr;      /* attributes, need for pagin */
 584         uint32_t        rrok_count;     /* bytes of data */
 585         char            *rrok_data;     /* data (up to NFS_MAXDATA bytes) */
 586         uint_t          rrok_bufsize;   /* size of kmem_alloc'd buffer */
 587         mblk_t          *rrok_mp;       /* mblk_t contains data for reply */
 588 #ifdef _KERNEL
 589         uint_t          rrok_wlist_len;
 590         struct clist    *rrok_wlist;
 591 #endif
 592 };
 593 
 594 /*
 595  * Reply from remote read
 596  */
 597 struct nfsrdresult {
 598         nfsstat rr_status;                      /* status of read */
 599         union {
 600                 struct nfsrrok  rr_ok_u;        /* attributes, need for pagin */
 601         } rr_u;
 602 };
 603 #define rr_ok           rr_u.rr_ok_u
 604 #define rr_attr         rr_u.rr_ok_u.rrok_attr
 605 #define rr_count        rr_u.rr_ok_u.rrok_count
 606 #define rr_bufsize      rr_u.rr_ok_u.rrok_bufsize
 607 #define rr_data         rr_u.rr_ok_u.rrok_data
 608 #define rr_mp           rr_u.rr_ok_u.rrok_mp
 609 
 610 /*
 611  * File attributes which can be set
 612  */
 613 struct nfssattr {
 614         uint32_t        sa_mode;        /* protection mode bits */
 615         uint32_t        sa_uid;         /* owner user id */
 616         uint32_t        sa_gid;         /* owner group id */
 617         uint32_t        sa_size;        /* file size in bytes */
 618         struct nfs2_timeval sa_atime;   /* time of last access */
 619         struct nfs2_timeval sa_mtime;   /* time of last modification */
 620 };
 621 
 622 
 623 /*
 624  * Reply status with file attributes
 625  */
 626 struct nfsattrstat {
 627         nfsstat ns_status;                      /* reply status */
 628         union {
 629                 struct nfsfattr ns_attr_u;      /* NFS_OK: file attributes */
 630         } ns_u;
 631 };
 632 #define ns_attr ns_u.ns_attr_u
 633 
 634 
 635 /*
 636  * NFS_OK part of read sym link reply union
 637  */
 638 struct nfssrok {
 639         uint32_t srok_count;    /* size of string */
 640         char    *srok_data;     /* string (up to NFS_MAXPATHLEN bytes) */
 641 };
 642 
 643 /*
 644  * Result of reading symbolic link
 645  */
 646 struct nfsrdlnres {
 647         nfsstat rl_status;                      /* status of symlink read */
 648         union {
 649                 struct nfssrok  rl_srok_u;      /* name of linked to */
 650         } rl_u;
 651 };
 652 #define rl_srok         rl_u.rl_srok_u
 653 #define rl_count        rl_u.rl_srok_u.srok_count
 654 #define rl_data         rl_u.rl_srok_u.srok_data
 655 
 656 
 657 /*
 658  * Arguments to readdir
 659  */
 660 struct nfsrddirargs {
 661         fhandle_t rda_fh;       /* directory handle */
 662         uint32_t rda_offset;    /* offset in directory (opaque) */
 663         uint32_t rda_count;     /* number of directory bytes to read */
 664 };
 665 
 666 /*
 667  * NFS_OK part of readdir result
 668  */
 669 struct nfsrdok {
 670         uint32_t rdok_offset;           /* next offset (opaque) */
 671         uint32_t rdok_size;             /* size in bytes of entries */
 672         bool_t  rdok_eof;               /* true if last entry is in result */
 673         struct dirent64 *rdok_entries;  /* variable number of entries */
 674 };
 675 
 676 /*
 677  * Readdir result
 678  */
 679 struct nfsrddirres {
 680         nfsstat rd_status;
 681         uint_t          rd_bufsize;     /* client request size (not xdr'ed) */
 682         union {
 683                 struct nfsrdok rd_rdok_u;
 684         } rd_u;
 685 };
 686 #define rd_rdok         rd_u.rd_rdok_u
 687 #define rd_offset       rd_u.rd_rdok_u.rdok_offset
 688 #define rd_size         rd_u.rd_rdok_u.rdok_size
 689 #define rd_eof          rd_u.rd_rdok_u.rdok_eof
 690 #define rd_entries      rd_u.rd_rdok_u.rdok_entries
 691 
 692 
 693 /*
 694  * Arguments for directory operations
 695  */
 696 struct nfsdiropargs {
 697         fhandle_t       *da_fhandle;    /* pointer to directory file handle */
 698         char            *da_name;       /* name (up to NFS_MAXNAMLEN bytes) */
 699         fhandle_t       da_fhandle_buf; /* directory file handle */
 700         int             da_flags;       /* flags, see below */
 701 };
 702 #define DA_FREENAME     1
 703 
 704 /*
 705  * NFS_OK part of directory operation result
 706  */
 707 struct  nfsdrok {
 708         fhandle_t       drok_fhandle;   /* result file handle */
 709         struct nfsfattr drok_attr;      /* result file attributes */
 710 };
 711 
 712 /*
 713  * Results from directory operation
 714  */
 715 struct  nfsdiropres {
 716         nfsstat dr_status;                      /* result status */
 717         union {
 718                 struct  nfsdrok dr_drok_u;      /* NFS_OK result */
 719         } dr_u;
 720 };
 721 #define dr_drok         dr_u.dr_drok_u
 722 #define dr_fhandle      dr_u.dr_drok_u.drok_fhandle
 723 #define dr_attr         dr_u.dr_drok_u.drok_attr
 724 
 725 /*
 726  * arguments to setattr
 727  */
 728 struct nfssaargs {
 729         fhandle_t       saa_fh;         /* fhandle of file to be set */
 730         struct nfssattr saa_sa;         /* new attributes */
 731 };
 732 
 733 /*
 734  * arguments to create and mkdir
 735  */
 736 struct nfscreatargs {
 737         struct nfsdiropargs     ca_da;  /* file name to create and parent dir */
 738         struct nfssattr         *ca_sa; /* initial attributes */
 739         struct nfssattr         ca_sa_buf;      /* space to store attributes */
 740 };
 741 
 742 /*
 743  * arguments to link
 744  */
 745 struct nfslinkargs {
 746         fhandle_t               *la_from;       /* old file */
 747         fhandle_t               la_from_buf;    /* old file */
 748         struct nfsdiropargs     la_to;          /* new file and parent dir */
 749 };
 750 
 751 /*
 752  * arguments to rename
 753  */
 754 struct nfsrnmargs {
 755         struct nfsdiropargs rna_from;   /* old file and parent dir */
 756         struct nfsdiropargs rna_to;     /* new file and parent dir */
 757 };
 758 
 759 /*
 760  * arguments to symlink
 761  */
 762 struct nfsslargs {
 763         struct nfsdiropargs     sla_from;       /* old file and parent dir */
 764         char                    *sla_tnm;       /* new name */
 765         int                     sla_tnm_flags;  /* flags for name */
 766         struct nfssattr         *sla_sa;        /* attributes */
 767         struct nfssattr         sla_sa_buf;     /* attributes buffer */
 768 };
 769 #define SLA_FREETNM     1
 770 
 771 /*
 772  * NFS_OK part of statfs operation
 773  */
 774 struct nfsstatfsok {
 775         uint32_t fsok_tsize;    /* preferred transfer size in bytes */
 776         uint32_t fsok_bsize;    /* fundamental file system block size */
 777         uint32_t fsok_blocks;   /* total blocks in file system */
 778         uint32_t fsok_bfree;    /* free blocks in fs */
 779         uint32_t fsok_bavail;   /* free blocks avail to non-superuser */
 780 };
 781 
 782 /*
 783  * Results of statfs operation
 784  */
 785 struct nfsstatfs {
 786         nfsstat fs_status;                      /* result status */
 787         union {
 788                 struct  nfsstatfsok fs_fsok_u;  /* NFS_OK result */
 789         } fs_u;
 790 };
 791 #define fs_fsok         fs_u.fs_fsok_u
 792 #define fs_tsize        fs_u.fs_fsok_u.fsok_tsize
 793 #define fs_bsize        fs_u.fs_fsok_u.fsok_bsize
 794 #define fs_blocks       fs_u.fs_fsok_u.fsok_blocks
 795 #define fs_bfree        fs_u.fs_fsok_u.fsok_bfree
 796 #define fs_bavail       fs_u.fs_fsok_u.fsok_bavail
 797 
 798 #ifdef _KERNEL
 799 /*
 800  * XDR routines for handling structures defined above
 801  */
 802 extern bool_t   xdr_attrstat(XDR *, struct nfsattrstat *);
 803 extern bool_t   xdr_fastattrstat(XDR *, struct nfsattrstat *);
 804 extern bool_t   xdr_creatargs(XDR *, struct nfscreatargs *);
 805 extern bool_t   xdr_diropargs(XDR *, struct nfsdiropargs *);
 806 extern bool_t   xdr_diropres(XDR *, struct nfsdiropres *);
 807 extern bool_t   xdr_fastdiropres(XDR *, struct nfsdiropres *);
 808 extern bool_t   xdr_drok(XDR *, struct nfsdrok *);
 809 #ifdef _LITTLE_ENDIAN
 810 extern bool_t   xdr_fastdrok(XDR *, struct nfsdrok *);
 811 extern bool_t   xdr_fastfattr(XDR *, struct nfsfattr *);
 812 #endif
 813 extern bool_t   xdr_fattr(XDR *, struct nfsfattr *);
 814 extern bool_t   xdr_fhandle(XDR *, fhandle_t *);
 815 extern bool_t   xdr_fastfhandle(XDR *, fhandle_t **);
 816 extern bool_t   xdr_linkargs(XDR *, struct nfslinkargs *);
 817 extern bool_t   xdr_rddirargs(XDR *, struct nfsrddirargs *);
 818 extern bool_t   xdr_putrddirres(XDR *, struct nfsrddirres *);
 819 extern bool_t   xdr_getrddirres(XDR *, struct nfsrddirres *);
 820 extern bool_t   xdr_rdlnres(XDR *, struct nfsrdlnres *);
 821 extern bool_t   xdr_rdresult(XDR *, struct nfsrdresult *);
 822 extern bool_t   xdr_readargs(XDR *, struct nfsreadargs *);
 823 extern bool_t   xdr_readlink(XDR *, fhandle_t *);
 824 extern bool_t   xdr_rnmargs(XDR *, struct nfsrnmargs *);
 825 extern bool_t   xdr_rrok(XDR *, struct nfsrrok *);
 826 extern bool_t   xdr_saargs(XDR *, struct nfssaargs *);
 827 extern bool_t   xdr_sattr(XDR *, struct nfssattr *);
 828 extern bool_t   xdr_slargs(XDR *, struct nfsslargs *);
 829 extern bool_t   xdr_srok(XDR *, struct nfssrok *);
 830 extern bool_t   xdr_nfs2_timeval(XDR *, struct nfs2_timeval *);
 831 extern bool_t   xdr_writeargs(XDR *, struct nfswriteargs *);
 832 extern bool_t   xdr_fsok(XDR *, struct nfsstatfsok *);
 833 #ifdef _LITTLE_ENDIAN
 834 extern bool_t   xdr_fastfsok(XDR *, struct nfsstatfsok *);
 835 extern bool_t   xdr_fastenum(XDR *, enum_t *);
 836 #endif
 837 extern bool_t   xdr_statfs(XDR *, struct nfsstatfs *);
 838 extern bool_t   xdr_faststatfs(XDR *, struct nfsstatfs *);
 839 #endif
 840 
 841 /*
 842  * Remote file service routines
 843  */
 844 #define RFS_NULL        0
 845 #define RFS_GETATTR     1
 846 #define RFS_SETATTR     2
 847 #define RFS_ROOT        3
 848 #define RFS_LOOKUP      4
 849 #define RFS_READLINK    5
 850 #define RFS_READ        6
 851 #define RFS_WRITECACHE  7
 852 #define RFS_WRITE       8
 853 #define RFS_CREATE      9
 854 #define RFS_REMOVE      10
 855 #define RFS_RENAME      11
 856 #define RFS_LINK        12
 857 #define RFS_SYMLINK     13
 858 #define RFS_MKDIR       14
 859 #define RFS_RMDIR       15
 860 #define RFS_READDIR     16
 861 #define RFS_STATFS      17
 862 #define RFS_NPROC       18
 863 
 864 #ifdef _KERNEL
 865 /*
 866  * The NFS Version 2 service procedures
 867  */
 868 struct exportinfo;      /* defined in nfs/export.h */
 869 struct servinfo;        /* defined in nfs/nfs_clnt.h */
 870 struct mntinfo;         /* defined in nfs/nfs_clnt.h */
 871 
 872 extern void     rfs_getattr(fhandle_t *, struct nfsattrstat *,
 873     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 874 extern void     *rfs_getattr_getfh(fhandle_t *);
 875 extern void     rfs_setattr(struct nfssaargs *, struct nfsattrstat *,
 876     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 877 extern void     *rfs_setattr_getfh(struct nfssaargs *);
 878 extern void     rfs_lookup(struct nfsdiropargs *, struct nfsdiropres *,
 879     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 880 extern void     *rfs_lookup_getfh(struct nfsdiropargs *);
 881 extern void     rfs_readlink(fhandle_t *, struct nfsrdlnres *,
 882     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 883 extern void     *rfs_readlink_getfh(fhandle_t *);
 884 extern void     rfs_rlfree(struct nfsrdlnres *);
 885 extern void     rfs_read(struct nfsreadargs *, struct nfsrdresult *,
 886     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 887 extern void     *rfs_read_getfh(struct nfsreadargs *);
 888 extern void     rfs_rdfree(struct nfsrdresult *);
 889 extern void     rfs_write_sync(struct nfswriteargs *, struct nfsattrstat *,
 890     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 891 extern void     rfs_write(struct nfswriteargs *, struct nfsattrstat *,
 892     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 893 extern void     *rfs_write_getfh(struct nfswriteargs *);
 894 extern void     rfs_create(struct nfscreatargs *, struct nfsdiropres *,
 895     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 896 extern void     *rfs_create_getfh(struct nfscreatargs *);
 897 extern void     rfs_remove(struct nfsdiropargs *, enum nfsstat *,
 898     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 899 extern void     *rfs_remove_getfh(struct nfsdiropargs *);
 900 extern void     rfs_rename(struct nfsrnmargs *, enum nfsstat *,
 901     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 902 extern void     *rfs_rename_getfh(struct nfsrnmargs *);
 903 extern void     rfs_link(struct nfslinkargs *, enum nfsstat *,
 904     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 905 extern void     *rfs_link_getfh(struct nfslinkargs *);
 906 extern void     rfs_symlink(struct nfsslargs *, enum nfsstat *,
 907     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 908 extern void     *rfs_symlink_getfh(struct nfsslargs *);
 909 extern void     rfs_mkdir(struct nfscreatargs *, struct nfsdiropres *,
 910     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 911 extern void     *rfs_mkdir_getfh(struct nfscreatargs *);
 912 extern void     rfs_rmdir(struct nfsdiropargs *, enum nfsstat *,
 913     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 914 extern void     *rfs_rmdir_getfh(struct nfsdiropargs *);
 915 extern void     rfs_readdir(struct nfsrddirargs *, struct nfsrddirres *,
 916     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 917 extern void     *rfs_readdir_getfh(struct nfsrddirargs *);
 918 extern void     rfs_rddirfree(struct nfsrddirres *);
 919 extern void     rfs_statfs(fhandle_t *, struct nfsstatfs *, struct exportinfo *,
 920     struct svc_req *, cred_t *, bool_t);
 921 extern void     *rfs_statfs_getfh(fhandle_t *);
 922 extern void     rfs_srvrinit(void);
 923 extern void     rfs_srvrfini(void);
 924 extern void     rfs_srv_zone_init(nfs_globals_t *);
 925 extern void     rfs_srv_zone_fini(nfs_globals_t *);
 926 
 927 /*
 928  * flags to define path types during Multi Component Lookups
 929  * using the public filehandle
 930  */
 931 #define URLPATH         0x01    /* Universal Resource Locator path */
 932 #define NATIVEPATH      0x02    /* Native path, i.e., via mount protocol */
 933 #define SECURITY_QUERY  0x04    /* Security query */
 934 
 935 /* index for svstat_ptr */
 936 enum nfs_svccounts {NFS_CALLS, NFS_BADCALLS, NFS_REFERRALS, NFS_REFERLINKS};
 937 
 938 #define NFS_V2  NFS_VERSION
 939 
 940 /*      function defs for NFS kernel */
 941 extern int      nfs_waitfor_purge_complete(vnode_t *);
 942 extern int      nfs_validate_caches(vnode_t *, cred_t *);
 943 extern void     nfs_purge_caches(vnode_t *, int, cred_t *);
 944 extern void     nfs_purge_rddir_cache(vnode_t *);
 945 extern void     nfs_attrcache(vnode_t *, struct nfsfattr *, hrtime_t);
 946 extern int      nfs_cache_fattr(vnode_t *, struct nfsfattr *, vattr_t *,
 947     hrtime_t, cred_t *);
 948 extern void     nfs_attr_cache(vnode_t *, vattr_t *, hrtime_t, cred_t *);
 949 extern void     nfs_attrcache_va(vnode_t *, struct vattr *);
 950 extern int      nfs_getattr_otw(vnode_t *, struct vattr *, cred_t *);
 951 extern int      nfsgetattr(vnode_t *, struct vattr *, cred_t *);
 952 extern int      nattr_to_vattr(vnode_t *, struct nfsfattr *, struct vattr *);
 953 extern void     nfs_async_manager(struct vfs *);
 954 extern void     nfs_async_manager_stop(struct vfs *);
 955 extern void     nfs_async_stop(struct vfs *);
 956 extern int      nfs_async_stop_sig(struct vfs *);
 957 extern int      nfs_clntinit(void);
 958 extern void     nfs_clntfini(void);
 959 extern int      nfstsize(void);
 960 extern void     nfs_srvinit(void);
 961 extern void     nfs_srvfini(void);
 962 extern int      vattr_to_sattr(struct vattr *, struct nfssattr *);
 963 extern void     setdiropargs(struct nfsdiropargs *, char *, vnode_t *);
 964 extern int      setdirgid(vnode_t *, gid_t *, cred_t *);
 965 extern int      setdirmode(vnode_t *, mode_t *, cred_t *);
 966 extern int      newnum(void);
 967 extern char     *newname(void);
 968 extern int      nfs_subrinit(void);
 969 extern void     nfs_subrfini(void);
 970 extern enum nfsstat puterrno(int);
 971 extern int      geterrno(enum nfsstat);
 972 extern int      nfsinit(int, char *);
 973 extern void     nfsfini(void);
 974 extern int      nfs_vfsinit(void);
 975 extern void     nfs_vfsfini(void);
 976 extern int      nfs_dump(vnode_t *, caddr_t, offset_t, offset_t,
 977     caller_context_t *);
 978 extern void     nfs_perror(int, char *, ...);
 979 extern void     nfs_cmn_err(int, int, char *, ...);
 980 extern int      nfs_addcllock(vnode_t *, struct flock64 *);
 981 extern void     nfs_rmcllock(vnode_t *, struct flock64 *);
 982 extern void     nfs_lockrelease(vnode_t *, int, offset_t, cred_t *);
 983 extern int      vattr_to_nattr(struct vattr *, struct nfsfattr *);
 984 extern int      mount_root(char *, char *, int, struct nfs_args *, int *);
 985 extern void     nfs_lockcompletion(vnode_t *, int);
 986 extern void     nfs_add_locking_id(vnode_t *, pid_t, int, char *, int);
 987 extern void     nfs3copyfh(caddr_t, vnode_t *);
 988 extern void     nfscopyfh(caddr_t, vnode_t *);
 989 extern int      nfs3lookup(vnode_t *, char *, vnode_t **, struct pathname *,
 990     int, vnode_t *, cred_t *, int);
 991 extern int      nfslookup(vnode_t *, char *, vnode_t **, struct pathname *, int,
 992     vnode_t *, cred_t *, int);
 993 extern void     sv_free(struct servinfo *);
 994 extern int      nfsauth_access(struct exportinfo *, struct svc_req *, cred_t *,
 995     uid_t *, gid_t *, uint_t *, gid_t **);
 996 extern void     nfsauth_init(void);
 997 extern void     nfsauth_fini(void);
 998 extern void     nfsauth_zone_init(nfs_globals_t *);
 999 extern void     nfsauth_zone_fini(nfs_globals_t *);
1000 extern void     nfsauth_zone_shutdown(nfs_globals_t *);
1001 extern int      nfs_setopts(vnode_t *, model_t, struct nfs_args *);
1002 extern int      nfs_mount_label_policy(vfs_t *, struct netbuf *,
1003     struct knetconfig *, cred_t *);
1004 extern boolean_t nfs_has_ctty(void);
1005 extern nfs_globals_t *nfs_srv_getzg(void);
1006 extern void     nfs_srv_stop_all(void);
1007 extern void     nfs_srv_quiesce_all(void);
1008 extern int      rfs4_dss_setpaths(char *, size_t);
1009 extern int      nfs_setmod_check(page_t *);
1010 
1011 extern time_t   rfs4_lease_time;
1012 extern time_t   rfs4_grace_period;
1013 extern nvlist_t *rfs4_dss_paths, *rfs4_dss_oldpaths;
1014 
1015 extern kstat_named_t    *global_svstat_ptr[];
1016 
1017 extern zone_key_t       nfssrv_zone_key;
1018 extern list_t           nfssrv_globals_list;
1019 extern krwlock_t        nfssrv_globals_rwl;
1020 
1021 extern krwlock_t        rroklock;
1022 extern vtype_t          nf_to_vt[];
1023 extern kmutex_t         nfs_minor_lock;
1024 extern int              nfs_major;
1025 extern int              nfs_minor;
1026 extern vfsops_t         *nfs_vfsops;
1027 extern struct vnodeops  *nfs_vnodeops;
1028 extern const struct fs_operation_def nfs_vnodeops_template[];
1029 extern int              nfsfstyp;
1030 extern void             (*nfs_srv_quiesce_func)(void);
1031 extern int              (*nfs_srv_dss_func)(char *, size_t);
1032 
1033 /*
1034  * Per-zone stats as consumed by nfsstat(1m)
1035  */
1036 struct nfs_version_stats {
1037         kstat_named_t   *aclreqcnt_ptr;         /* nfs_acl:0:aclreqcnt_v? */
1038         kstat_named_t   *rfsreqcnt_ptr;         /* nfs:0:rfsreqcnt_v? */
1039 };
1040 
1041 /*
1042  * A bit of asymmetry: nfs:0:nfs_client isn't part of this structure.
1043  */
1044 struct nfs_stats {
1045         struct nfs_version_stats        nfs_stats_v2;
1046         struct nfs_version_stats        nfs_stats_v3;
1047         struct nfs_version_stats        nfs_stats_v4;
1048 };
1049 
1050 /*
1051  * Key used to retrieve counters.
1052  */
1053 extern zone_key_t nfsstat_zone_key;
1054 
1055 /*
1056  * Zone callback functions.
1057  */
1058 extern void     *nfsstat_zone_init(zoneid_t);
1059 extern void     nfsstat_zone_fini(zoneid_t, void *);
1060 
1061 extern void rfs_stat_zone_init(nfs_globals_t *);
1062 extern void rfs_stat_zone_fini(nfs_globals_t *);
1063 
1064 #endif  /* _KERNEL */
1065 
1066 /*
1067  * Version 3 declarations and definitions.
1068  */
1069 
1070 #define NFS3_FHSIZE 64
1071 #define NFS3_COOKIEVERFSIZE 8
1072 #define NFS3_CREATEVERFSIZE 8
1073 #define NFS3_WRITEVERFSIZE 8
1074 
1075 typedef char *filename3;
1076 
1077 typedef char *nfspath3;
1078 
1079 #define nfs3nametoolong ((char *)-1)
1080 
1081 typedef uint64 fileid3;
1082 
1083 typedef uint64 cookie3;
1084 
1085 typedef uint32 uid3;
1086 
1087 typedef uint32 gid3;
1088 
1089 typedef uint64 size3;
1090 
1091 typedef uint64 offset3;
1092 
1093 typedef uint32 mode3;
1094 
1095 typedef uint32 count3;
1096 
1097 /*
1098  * These three are really opaque arrays, but we treat them as
1099  * uint64 for efficiency sake
1100  */
1101 typedef uint64 cookieverf3;
1102 
1103 typedef uint64 createverf3;
1104 
1105 typedef uint64 writeverf3;
1106 
1107 typedef struct nfs_fh3 {
1108         uint_t fh3_length;
1109         union nfs_fh3_u {
1110                 struct nfs_fh3_i {
1111                         fhandle3_t fh3_i;
1112                 } nfs_fh3_i;
1113                 char data[NFS3_FHSIZE];
1114         } fh3_u;
1115         uint_t fh3_flags;
1116 } nfs_fh3;
1117 #define fh3_fsid        fh3_u.nfs_fh3_i.fh3_i._fh3_fsid
1118 #define fh3_len         fh3_u.nfs_fh3_i.fh3_i._fh3_len
1119 #define fh3_data        fh3_u.nfs_fh3_i.fh3_i._fh3_data
1120 #define fh3_xlen        fh3_u.nfs_fh3_i.fh3_i._fh3_xlen
1121 #define fh3_xdata       fh3_u.nfs_fh3_i.fh3_i._fh3_xdata
1122 #define FH3TOFIDP(fh)   ((fid_t *)&((fh)->fh3_len))
1123 #define FH3TOXFIDP(fh)  ((fid_t *)&((fh)->fh3_xlen))
1124 
1125 /*
1126  * nfs_fh3.fh3_flags values
1127  */
1128 #define FH_WEBNFS       0x1     /* fh is WebNFS overloaded - see makefh3_ol() */
1129 
1130 /*
1131  * Two elements were added to the
1132  * diropargs3 structure for performance (xdr-inlining).
1133  * They are not included as part of the args
1134  * that are encoded or decoded:
1135  * dirp - ptr to the nfs_fh3
1136  * flag indicating when to free the name that was
1137  * allocated during decode.
1138  */
1139 struct diropargs3 {
1140         nfs_fh3 *dirp;
1141         nfs_fh3 dir;
1142         filename3 name;
1143         int flags;
1144 };
1145 typedef struct diropargs3 diropargs3;
1146 
1147 struct nfstime3 {
1148         uint32 seconds;
1149         uint32 nseconds;
1150 };
1151 typedef struct nfstime3 nfstime3;
1152 
1153 struct specdata3 {
1154         uint32 specdata1;
1155         uint32 specdata2;
1156 };
1157 typedef struct specdata3 specdata3;
1158 
1159 enum nfsstat3 {
1160         NFS3_OK = 0,
1161         NFS3ERR_PERM = 1,
1162         NFS3ERR_NOENT = 2,
1163         NFS3ERR_IO = 5,
1164         NFS3ERR_NXIO = 6,
1165         NFS3ERR_ACCES = 13,
1166         NFS3ERR_EXIST = 17,
1167         NFS3ERR_XDEV = 18,
1168         NFS3ERR_NODEV = 19,
1169         NFS3ERR_NOTDIR = 20,
1170         NFS3ERR_ISDIR = 21,
1171         NFS3ERR_INVAL = 22,
1172         NFS3ERR_FBIG = 27,
1173         NFS3ERR_NOSPC = 28,
1174         NFS3ERR_ROFS = 30,
1175         NFS3ERR_MLINK = 31,
1176         NFS3ERR_NAMETOOLONG = 63,
1177         NFS3ERR_NOTEMPTY = 66,
1178         NFS3ERR_DQUOT = 69,
1179         NFS3ERR_STALE = 70,
1180         NFS3ERR_REMOTE = 71,
1181         NFS3ERR_BADHANDLE = 10001,
1182         NFS3ERR_NOT_SYNC = 10002,
1183         NFS3ERR_BAD_COOKIE = 10003,
1184         NFS3ERR_NOTSUPP = 10004,
1185         NFS3ERR_TOOSMALL = 10005,
1186         NFS3ERR_SERVERFAULT = 10006,
1187         NFS3ERR_BADTYPE = 10007,
1188         NFS3ERR_JUKEBOX = 10008
1189 };
1190 typedef enum nfsstat3 nfsstat3;
1191 
1192 enum ftype3 {
1193         NF3REG = 1,
1194         NF3DIR = 2,
1195         NF3BLK = 3,
1196         NF3CHR = 4,
1197         NF3LNK = 5,
1198         NF3SOCK = 6,
1199         NF3FIFO = 7
1200 };
1201 typedef enum ftype3 ftype3;
1202 
1203 struct fattr3 {
1204         ftype3 type;
1205         mode3 mode;
1206         uint32 nlink;
1207         uid3 uid;
1208         gid3 gid;
1209         size3 size;
1210         size3 used;
1211         specdata3 rdev;
1212         uint64 fsid;
1213         fileid3 fileid;
1214         nfstime3 atime;
1215         nfstime3 mtime;
1216         nfstime3 ctime;
1217 };
1218 typedef struct fattr3 fattr3;
1219 
1220 #define NFS3_SIZEOF_FATTR3      (21)
1221 
1222 #ifdef _KERNEL
1223 struct fattr3_res {
1224         nfsstat3 status;
1225         vattr_t *vap;
1226         vnode_t *vp;
1227 };
1228 typedef struct fattr3_res fattr3_res;
1229 #endif /* _KERNEL */
1230 
1231 struct post_op_attr {
1232         bool_t attributes;
1233         fattr3 attr;
1234 };
1235 typedef struct post_op_attr post_op_attr;
1236 
1237 #ifdef _KERNEL
1238 struct post_op_vattr {
1239         bool_t          attributes;
1240         fattr3_res      fres;
1241 };
1242 typedef struct post_op_vattr post_op_vattr;
1243 #endif /* _KERNEL */
1244 
1245 struct wcc_attr {
1246         size3 size;
1247         nfstime3 mtime;
1248         nfstime3 ctime;
1249 };
1250 typedef struct wcc_attr wcc_attr;
1251 
1252 struct pre_op_attr {
1253         bool_t attributes;
1254         wcc_attr attr;
1255 };
1256 typedef struct pre_op_attr pre_op_attr;
1257 
1258 struct wcc_data {
1259         pre_op_attr before;
1260         post_op_attr after;
1261 };
1262 typedef struct wcc_data wcc_data;
1263 
1264 struct post_op_fh3 {
1265         bool_t handle_follows;
1266         nfs_fh3 handle;
1267 };
1268 typedef struct post_op_fh3 post_op_fh3;
1269 
1270 enum time_how {
1271         DONT_CHANGE = 0,
1272         SET_TO_SERVER_TIME = 1,
1273         SET_TO_CLIENT_TIME = 2
1274 };
1275 typedef enum time_how time_how;
1276 
1277 struct set_mode3 {
1278         bool_t set_it;
1279         mode3 mode;
1280 };
1281 typedef struct set_mode3 set_mode3;
1282 
1283 struct set_uid3 {
1284         bool_t set_it;
1285         uid3 uid;
1286 };
1287 typedef struct set_uid3 set_uid3;
1288 
1289 struct set_gid3 {
1290         bool_t set_it;
1291         gid3 gid;
1292 };
1293 typedef struct set_gid3 set_gid3;
1294 
1295 struct set_size3 {
1296         bool_t set_it;
1297         size3 size;
1298 };
1299 typedef struct set_size3 set_size3;
1300 
1301 struct set_atime {
1302         time_how set_it;
1303         nfstime3 atime;
1304 };
1305 typedef struct set_atime set_atime;
1306 
1307 struct set_mtime {
1308         time_how set_it;
1309         nfstime3 mtime;
1310 };
1311 typedef struct set_mtime set_mtime;
1312 
1313 struct sattr3 {
1314         set_mode3 mode;
1315         set_uid3 uid;
1316         set_gid3 gid;
1317         set_size3 size;
1318         set_atime atime;
1319         set_mtime mtime;
1320 };
1321 typedef struct sattr3 sattr3;
1322 
1323 /*
1324  * A couple of defines to make resok and resfail look like the
1325  * correct things in a response type independent manner.
1326  */
1327 #define resok   res_u.ok
1328 #define resfail res_u.fail
1329 
1330 struct GETATTR3args {
1331         nfs_fh3 object;
1332 };
1333 typedef struct GETATTR3args GETATTR3args;
1334 
1335 struct GETATTR3resok {
1336         fattr3 obj_attributes;
1337 };
1338 typedef struct GETATTR3resok GETATTR3resok;
1339 
1340 struct GETATTR3res {
1341         nfsstat3 status;
1342         union {
1343                 GETATTR3resok ok;
1344         } res_u;
1345 };
1346 typedef struct GETATTR3res GETATTR3res;
1347 
1348 #ifdef _KERNEL
1349 struct GETATTR3vres {
1350         nfsstat3 status;
1351         fattr3_res fres;
1352 };
1353 typedef struct GETATTR3vres GETATTR3vres;
1354 #endif /* _KERNEL */
1355 
1356 struct sattrguard3 {
1357         bool_t check;
1358         nfstime3 obj_ctime;
1359 };
1360 typedef struct sattrguard3 sattrguard3;
1361 
1362 struct SETATTR3args {
1363         nfs_fh3 object;
1364         sattr3 new_attributes;
1365         sattrguard3 guard;
1366 };
1367 typedef struct SETATTR3args SETATTR3args;
1368 
1369 struct SETATTR3resok {
1370         wcc_data obj_wcc;
1371 };
1372 typedef struct SETATTR3resok SETATTR3resok;
1373 
1374 struct SETATTR3resfail {
1375         wcc_data obj_wcc;
1376 };
1377 typedef struct SETATTR3resfail SETATTR3resfail;
1378 
1379 struct SETATTR3res {
1380         nfsstat3 status;
1381         union {
1382                 SETATTR3resok ok;
1383                 SETATTR3resfail fail;
1384         } res_u;
1385 };
1386 typedef struct SETATTR3res SETATTR3res;
1387 
1388 struct LOOKUP3args {
1389         diropargs3 what;
1390 };
1391 typedef struct LOOKUP3args LOOKUP3args;
1392 
1393 struct LOOKUP3resok {
1394         nfs_fh3 object;
1395         post_op_attr obj_attributes;
1396         post_op_attr dir_attributes;
1397 };
1398 typedef struct LOOKUP3resok LOOKUP3resok;
1399 
1400 struct LOOKUP3resfail {
1401         post_op_attr dir_attributes;
1402 };
1403 typedef struct LOOKUP3resfail LOOKUP3resfail;
1404 
1405 struct LOOKUP3res {
1406         nfsstat3 status;
1407         union {
1408                 LOOKUP3resok ok;
1409                 LOOKUP3resfail fail;
1410         } res_u;
1411 };
1412 typedef struct LOOKUP3res LOOKUP3res;
1413 
1414 #ifdef _KERNEL
1415 struct LOOKUP3vres {
1416         nfsstat3 status;
1417         nfs_fh3 object;
1418         post_op_vattr dir_attributes;
1419         post_op_vattr obj_attributes;
1420 };
1421 typedef struct LOOKUP3vres LOOKUP3vres;
1422 #endif /* _KERNEL */
1423 
1424 struct ACCESS3args {
1425         nfs_fh3 object;
1426         uint32 access;
1427 };
1428 typedef struct ACCESS3args ACCESS3args;
1429 #define ACCESS3_READ 0x1
1430 #define ACCESS3_LOOKUP 0x2
1431 #define ACCESS3_MODIFY 0x4
1432 #define ACCESS3_EXTEND 0x8
1433 #define ACCESS3_DELETE 0x10
1434 #define ACCESS3_EXECUTE 0x20
1435 
1436 struct ACCESS3resok {
1437         post_op_attr obj_attributes;
1438         uint32 access;
1439 };
1440 typedef struct ACCESS3resok ACCESS3resok;
1441 
1442 struct ACCESS3resfail {
1443         post_op_attr obj_attributes;
1444 };
1445 typedef struct ACCESS3resfail ACCESS3resfail;
1446 
1447 struct ACCESS3res {
1448         nfsstat3 status;
1449         union {
1450                 ACCESS3resok ok;
1451                 ACCESS3resfail fail;
1452         } res_u;
1453 };
1454 typedef struct ACCESS3res ACCESS3res;
1455 
1456 struct READLINK3args {
1457         nfs_fh3 symlink;
1458 };
1459 typedef struct READLINK3args READLINK3args;
1460 
1461 struct READLINK3resok {
1462         post_op_attr symlink_attributes;
1463         nfspath3 data;
1464 };
1465 typedef struct READLINK3resok READLINK3resok;
1466 
1467 struct READLINK3resfail {
1468         post_op_attr symlink_attributes;
1469 };
1470 typedef struct READLINK3resfail READLINK3resfail;
1471 
1472 struct READLINK3res {
1473         nfsstat3 status;
1474         union {
1475                 READLINK3resok ok;
1476                 READLINK3resfail fail;
1477         } res_u;
1478 };
1479 typedef struct READLINK3res READLINK3res;
1480 
1481 struct READ3args {
1482         nfs_fh3 file;
1483         offset3 offset;
1484         count3 count;
1485 #ifdef _KERNEL
1486         /* for read using rdma */
1487         char *res_data_val_alt;
1488         struct uio *res_uiop;
1489         struct clist *wlist;
1490         CONN *conn;
1491 #endif
1492 };
1493 typedef struct READ3args READ3args;
1494 
1495 struct READ3resok {
1496         post_op_attr file_attributes;
1497         count3 count;
1498         bool_t eof;
1499         struct {
1500                 uint_t data_len;
1501                 char *data_val;
1502                 mblk_t *mp;
1503         } data;
1504         uint_t size;
1505 #ifdef _KERNEL
1506         uint_t wlist_len;
1507         struct clist *wlist;
1508         frtn_t zcopy;
1509 #endif
1510 };
1511 typedef struct READ3resok READ3resok;
1512 
1513 struct READ3resfail {
1514         post_op_attr file_attributes;
1515 };
1516 typedef struct READ3resfail READ3resfail;
1517 
1518 struct READ3res {
1519         nfsstat3 status;
1520         union {
1521                 READ3resok ok;
1522                 READ3resfail fail;
1523         } res_u;
1524 };
1525 typedef struct READ3res READ3res;
1526 
1527 #ifdef _KERNEL
1528 /*
1529  * READ3 reply that directly decodes fattr3 directly into vattr
1530  */
1531 struct READ3vres {
1532         nfsstat3 status;
1533         struct post_op_vattr pov;
1534         count3 count;
1535         bool_t eof;
1536         struct {
1537                 uint_t data_len;
1538                 char *data_val;
1539         } data;
1540         uint_t size;
1541 
1542         uint_t wlist_len;
1543         struct clist *wlist;
1544 };
1545 typedef struct READ3vres READ3vres;
1546 #endif /* _KERNEL */
1547 
1548 /*
1549  * READ3 reply that uiomoves data directly into a struct uio
1550  * ignores any attributes returned
1551  */
1552 struct READ3uiores {
1553         nfsstat3 status;
1554         count3 count;
1555         bool_t eof;
1556         struct uio *uiop;
1557         uint_t size;            /* maximum reply size */
1558 #ifdef _KERNEL
1559         uint_t wlist_len;
1560         struct clist *wlist;
1561 #endif
1562 };
1563 typedef struct READ3uiores READ3uiores;
1564 
1565 enum stable_how {
1566         UNSTABLE = 0,
1567         DATA_SYNC = 1,
1568         FILE_SYNC = 2
1569 };
1570 typedef enum stable_how stable_how;
1571 
1572 struct WRITE3args {
1573         nfs_fh3 file;
1574         offset3 offset;
1575         count3 count;
1576         stable_how stable;
1577         struct {
1578                 uint_t data_len;
1579                 char *data_val;
1580         } data;
1581         mblk_t *mblk;
1582 #ifdef _KERNEL
1583         struct clist *rlist;
1584         CONN *conn;
1585 #endif
1586 };
1587 typedef struct WRITE3args WRITE3args;
1588 
1589 struct WRITE3resok {
1590         wcc_data file_wcc;
1591         count3 count;
1592         stable_how committed;
1593         writeverf3 verf;
1594 };
1595 typedef struct WRITE3resok WRITE3resok;
1596 
1597 struct WRITE3resfail {
1598         wcc_data file_wcc;
1599 };
1600 typedef struct WRITE3resfail WRITE3resfail;
1601 
1602 struct WRITE3res {
1603         nfsstat3 status;
1604         union {
1605                 WRITE3resok ok;
1606                 WRITE3resfail fail;
1607         } res_u;
1608 };
1609 typedef struct WRITE3res WRITE3res;
1610 
1611 enum createmode3 {
1612         UNCHECKED = 0,
1613         GUARDED = 1,
1614         EXCLUSIVE = 2
1615 };
1616 typedef enum createmode3 createmode3;
1617 
1618 struct createhow3 {
1619         createmode3 mode;
1620         union {
1621                 sattr3 obj_attributes;
1622                 createverf3 verf;
1623         } createhow3_u;
1624 };
1625 typedef struct createhow3 createhow3;
1626 
1627 struct CREATE3args {
1628         diropargs3 where;
1629         createhow3 how;
1630 };
1631 typedef struct CREATE3args CREATE3args;
1632 
1633 struct CREATE3resok {
1634         post_op_fh3 obj;
1635         post_op_attr obj_attributes;
1636         wcc_data dir_wcc;
1637 };
1638 typedef struct CREATE3resok CREATE3resok;
1639 
1640 struct CREATE3resfail {
1641         wcc_data dir_wcc;
1642 };
1643 typedef struct CREATE3resfail CREATE3resfail;
1644 
1645 struct CREATE3res {
1646         nfsstat3 status;
1647         union {
1648                 CREATE3resok ok;
1649                 CREATE3resfail fail;
1650         } res_u;
1651 };
1652 typedef struct CREATE3res CREATE3res;
1653 
1654 struct MKDIR3args {
1655         diropargs3 where;
1656         sattr3 attributes;
1657 };
1658 typedef struct MKDIR3args MKDIR3args;
1659 
1660 struct MKDIR3resok {
1661         post_op_fh3 obj;
1662         post_op_attr obj_attributes;
1663         wcc_data dir_wcc;
1664 };
1665 typedef struct MKDIR3resok MKDIR3resok;
1666 
1667 struct MKDIR3resfail {
1668         wcc_data dir_wcc;
1669 };
1670 typedef struct MKDIR3resfail MKDIR3resfail;
1671 
1672 struct MKDIR3res {
1673         nfsstat3 status;
1674         union {
1675                 MKDIR3resok ok;
1676                 MKDIR3resfail fail;
1677         } res_u;
1678 };
1679 typedef struct MKDIR3res MKDIR3res;
1680 
1681 struct symlinkdata3 {
1682         sattr3 symlink_attributes;
1683         nfspath3 symlink_data;
1684 };
1685 typedef struct symlinkdata3 symlinkdata3;
1686 
1687 struct SYMLINK3args {
1688         diropargs3 where;
1689         symlinkdata3 symlink;
1690 };
1691 typedef struct SYMLINK3args SYMLINK3args;
1692 
1693 struct SYMLINK3resok {
1694         post_op_fh3 obj;
1695         post_op_attr obj_attributes;
1696         wcc_data dir_wcc;
1697 };
1698 typedef struct SYMLINK3resok SYMLINK3resok;
1699 
1700 struct SYMLINK3resfail {
1701         wcc_data dir_wcc;
1702 };
1703 typedef struct SYMLINK3resfail SYMLINK3resfail;
1704 
1705 struct SYMLINK3res {
1706         nfsstat3 status;
1707         union {
1708                 SYMLINK3resok ok;
1709                 SYMLINK3resfail fail;
1710         } res_u;
1711 };
1712 typedef struct SYMLINK3res SYMLINK3res;
1713 
1714 struct devicedata3 {
1715         sattr3 dev_attributes;
1716         specdata3 spec;
1717 };
1718 typedef struct devicedata3 devicedata3;
1719 
1720 struct mknoddata3 {
1721         ftype3 type;
1722         union {
1723                 devicedata3 device;
1724                 sattr3 pipe_attributes;
1725         } mknoddata3_u;
1726 };
1727 typedef struct mknoddata3 mknoddata3;
1728 
1729 struct MKNOD3args {
1730         diropargs3 where;
1731         mknoddata3 what;
1732 };
1733 typedef struct MKNOD3args MKNOD3args;
1734 
1735 struct MKNOD3resok {
1736         post_op_fh3 obj;
1737         post_op_attr obj_attributes;
1738         wcc_data dir_wcc;
1739 };
1740 typedef struct MKNOD3resok MKNOD3resok;
1741 
1742 struct MKNOD3resfail {
1743         wcc_data dir_wcc;
1744 };
1745 typedef struct MKNOD3resfail MKNOD3resfail;
1746 
1747 struct MKNOD3res {
1748         nfsstat3 status;
1749         union {
1750                 MKNOD3resok ok;
1751                 MKNOD3resfail fail;
1752         } res_u;
1753 };
1754 typedef struct MKNOD3res MKNOD3res;
1755 
1756 struct REMOVE3args {
1757         diropargs3 object;
1758 };
1759 typedef struct REMOVE3args REMOVE3args;
1760 
1761 struct REMOVE3resok {
1762         wcc_data dir_wcc;
1763 };
1764 typedef struct REMOVE3resok REMOVE3resok;
1765 
1766 struct REMOVE3resfail {
1767         wcc_data dir_wcc;
1768 };
1769 typedef struct REMOVE3resfail REMOVE3resfail;
1770 
1771 struct REMOVE3res {
1772         nfsstat3 status;
1773         union {
1774                 REMOVE3resok ok;
1775                 REMOVE3resfail fail;
1776         } res_u;
1777 };
1778 typedef struct REMOVE3res REMOVE3res;
1779 
1780 struct RMDIR3args {
1781         diropargs3 object;
1782 };
1783 typedef struct RMDIR3args RMDIR3args;
1784 
1785 struct RMDIR3resok {
1786         wcc_data dir_wcc;
1787 };
1788 typedef struct RMDIR3resok RMDIR3resok;
1789 
1790 struct RMDIR3resfail {
1791         wcc_data dir_wcc;
1792 };
1793 typedef struct RMDIR3resfail RMDIR3resfail;
1794 
1795 struct RMDIR3res {
1796         nfsstat3 status;
1797         union {
1798                 RMDIR3resok ok;
1799                 RMDIR3resfail fail;
1800         } res_u;
1801 };
1802 typedef struct RMDIR3res RMDIR3res;
1803 
1804 struct RENAME3args {
1805         diropargs3 from;
1806         diropargs3 to;
1807 };
1808 typedef struct RENAME3args RENAME3args;
1809 
1810 struct RENAME3resok {
1811         wcc_data fromdir_wcc;
1812         wcc_data todir_wcc;
1813 };
1814 typedef struct RENAME3resok RENAME3resok;
1815 
1816 struct RENAME3resfail {
1817         wcc_data fromdir_wcc;
1818         wcc_data todir_wcc;
1819 };
1820 typedef struct RENAME3resfail RENAME3resfail;
1821 
1822 struct RENAME3res {
1823         nfsstat3 status;
1824         union {
1825                 RENAME3resok ok;
1826                 RENAME3resfail fail;
1827         } res_u;
1828 };
1829 typedef struct RENAME3res RENAME3res;
1830 
1831 struct LINK3args {
1832         nfs_fh3 file;
1833         diropargs3 link;
1834 };
1835 typedef struct LINK3args LINK3args;
1836 
1837 struct LINK3resok {
1838         post_op_attr file_attributes;
1839         wcc_data linkdir_wcc;
1840 };
1841 typedef struct LINK3resok LINK3resok;
1842 
1843 struct LINK3resfail {
1844         post_op_attr file_attributes;
1845         wcc_data linkdir_wcc;
1846 };
1847 typedef struct LINK3resfail LINK3resfail;
1848 
1849 struct LINK3res {
1850         nfsstat3 status;
1851         union {
1852                 LINK3resok ok;
1853                 LINK3resfail fail;
1854         } res_u;
1855 };
1856 typedef struct LINK3res LINK3res;
1857 
1858 struct READDIR3args {
1859         nfs_fh3 dir;
1860         cookie3 cookie;
1861         cookieverf3 cookieverf;
1862         count3 count;
1863 };
1864 typedef struct READDIR3args READDIR3args;
1865 
1866 struct entry3 {
1867         fileid3 fileid;
1868         filename3 name;
1869         cookie3 cookie;
1870         struct entry3 *nextentry;
1871 };
1872 typedef struct entry3 entry3;
1873 
1874 struct dirlist3 {
1875         entry3 *entries;
1876         bool_t eof;
1877 };
1878 typedef struct dirlist3 dirlist3;
1879 
1880 struct READDIR3resok {
1881         post_op_attr dir_attributes;
1882         cookieverf3 cookieverf;
1883         dirlist3 reply;
1884         uint_t size;
1885         uint_t count;
1886         uint_t freecount;
1887         cookie3 cookie;
1888 };
1889 typedef struct READDIR3resok READDIR3resok;
1890 
1891 struct READDIR3resfail {
1892         post_op_attr dir_attributes;
1893 };
1894 typedef struct READDIR3resfail READDIR3resfail;
1895 
1896 struct READDIR3res {
1897         nfsstat3 status;
1898         union {
1899                 READDIR3resok ok;
1900                 READDIR3resfail fail;
1901         } res_u;
1902 };
1903 typedef struct READDIR3res READDIR3res;
1904 
1905 #ifdef _KERNEL
1906 struct READDIR3vres {
1907         nfsstat3 status;
1908         post_op_vattr dir_attributes;
1909         cookieverf3 cookieverf;
1910         dirent64_t *entries;                    /* decoded dirent64s */
1911         uint_t size;                            /* actual size of entries */
1912         uint_t entries_size;                    /* max size of entries */
1913         off64_t loff;                           /* last offset/cookie */
1914         bool_t eof;                             /* End of directory */
1915 };
1916 typedef struct READDIR3vres READDIR3vres;
1917 #endif /* _KERNEL */
1918 
1919 struct READDIRPLUS3args {
1920         nfs_fh3 dir;
1921         cookie3 cookie;
1922         cookieverf3 cookieverf;
1923         count3 dircount;
1924         count3 maxcount;
1925 };
1926 typedef struct READDIRPLUS3args READDIRPLUS3args;
1927 
1928 struct entryplus3 {
1929         fileid3 fileid;
1930         filename3 name;
1931         cookie3 cookie;
1932         post_op_attr name_attributes;
1933         post_op_fh3 name_handle;
1934         struct entryplus3 *nextentry;
1935 };
1936 typedef struct entryplus3 entryplus3;
1937 
1938 struct dirlistplus3 {
1939         entryplus3 *entries;
1940         bool_t eof;
1941 };
1942 typedef struct dirlistplus3 dirlistplus3;
1943 
1944 struct entryplus3_info {
1945         post_op_attr attr;
1946         post_op_fh3 fh;
1947         uint_t namelen;
1948 };
1949 typedef struct entryplus3_info entryplus3_info;
1950 
1951 struct READDIRPLUS3resok {
1952         post_op_attr dir_attributes;
1953         cookieverf3 cookieverf;
1954         dirlistplus3 reply;
1955         uint_t size;
1956         uint_t count;
1957         uint_t maxcount;
1958         entryplus3_info *infop;
1959 };
1960 typedef struct READDIRPLUS3resok READDIRPLUS3resok;
1961 
1962 struct READDIRPLUS3resfail {
1963         post_op_attr dir_attributes;
1964 };
1965 typedef struct READDIRPLUS3resfail READDIRPLUS3resfail;
1966 
1967 struct READDIRPLUS3res {
1968         nfsstat3 status;
1969         union {
1970                 READDIRPLUS3resok ok;
1971                 READDIRPLUS3resfail fail;
1972         } res_u;
1973 };
1974 typedef struct READDIRPLUS3res READDIRPLUS3res;
1975 
1976 #ifdef _KERNEL
1977 struct entryplus3_va_fh {
1978         int va_valid;
1979         int fh_valid;
1980         vattr_t va;
1981         nfs_fh3 fh;
1982         char *d_name;           /* back pointer into entries */
1983 };
1984 
1985 struct READDIRPLUS3vres {
1986         nfsstat3 status;
1987         post_op_vattr dir_attributes;
1988         cookieverf3 cookieverf;
1989         dirent64_t *entries;                    /* decoded dirent64s */
1990         uint_t size;                            /* actual size of entries */
1991         uint_t entries_size;                    /* max size of entries */
1992         bool_t eof;                             /* End of directory */
1993         off64_t loff;                           /* last offset/cookie */
1994         cred_t *credentials;                    /* caller's credentials */
1995         hrtime_t time;                          /* time of READDIRPLUS call */
1996 };
1997 typedef struct READDIRPLUS3vres READDIRPLUS3vres;
1998 #endif /* _KERNEL */
1999 
2000 struct FSSTAT3args {
2001         nfs_fh3 fsroot;
2002 };
2003 typedef struct FSSTAT3args FSSTAT3args;
2004 
2005 struct FSSTAT3resok {
2006         post_op_attr obj_attributes;
2007         size3 tbytes;
2008         size3 fbytes;
2009         size3 abytes;
2010         size3 tfiles;
2011         size3 ffiles;
2012         size3 afiles;
2013         uint32 invarsec;
2014 };
2015 typedef struct FSSTAT3resok FSSTAT3resok;
2016 
2017 struct FSSTAT3resfail {
2018         post_op_attr obj_attributes;
2019 };
2020 typedef struct FSSTAT3resfail FSSTAT3resfail;
2021 
2022 struct FSSTAT3res {
2023         nfsstat3 status;
2024         union {
2025                 FSSTAT3resok ok;
2026                 FSSTAT3resfail fail;
2027         } res_u;
2028 };
2029 typedef struct FSSTAT3res FSSTAT3res;
2030 
2031 struct FSINFO3args {
2032         nfs_fh3 fsroot;
2033 };
2034 typedef struct FSINFO3args FSINFO3args;
2035 
2036 struct FSINFO3resok {
2037         post_op_attr obj_attributes;
2038         uint32 rtmax;
2039         uint32 rtpref;
2040         uint32 rtmult;
2041         uint32 wtmax;
2042         uint32 wtpref;
2043         uint32 wtmult;
2044         uint32 dtpref;
2045         size3 maxfilesize;
2046         nfstime3 time_delta;
2047         uint32 properties;
2048 };
2049 typedef struct FSINFO3resok FSINFO3resok;
2050 
2051 struct FSINFO3resfail {
2052         post_op_attr obj_attributes;
2053 };
2054 typedef struct FSINFO3resfail FSINFO3resfail;
2055 #define FSF3_LINK 0x1
2056 #define FSF3_SYMLINK 0x2
2057 #define FSF3_HOMOGENEOUS 0x8
2058 #define FSF3_CANSETTIME 0x10
2059 
2060 struct FSINFO3res {
2061         nfsstat3 status;
2062         union {
2063                 FSINFO3resok ok;
2064                 FSINFO3resfail fail;
2065         } res_u;
2066 };
2067 typedef struct FSINFO3res FSINFO3res;
2068 
2069 struct PATHCONF3args {
2070         nfs_fh3 object;
2071 };
2072 typedef struct PATHCONF3args PATHCONF3args;
2073 
2074 struct nfs3_pathconf_info {
2075         uint32 link_max;
2076         uint32 name_max;
2077         bool_t no_trunc;
2078         bool_t chown_restricted;
2079         bool_t case_insensitive;
2080         bool_t case_preserving;
2081 };
2082 typedef struct nfs3_pathconf_info nfs3_pathconf_info;
2083 
2084 struct PATHCONF3resok {
2085         post_op_attr obj_attributes;
2086         nfs3_pathconf_info info;
2087 };
2088 typedef struct PATHCONF3resok PATHCONF3resok;
2089 
2090 struct PATHCONF3resfail {
2091         post_op_attr obj_attributes;
2092 };
2093 typedef struct PATHCONF3resfail PATHCONF3resfail;
2094 
2095 struct PATHCONF3res {
2096         nfsstat3 status;
2097         union {
2098                 PATHCONF3resok ok;
2099                 PATHCONF3resfail fail;
2100         } res_u;
2101 };
2102 typedef struct PATHCONF3res PATHCONF3res;
2103 
2104 struct COMMIT3args {
2105         nfs_fh3 file;
2106         offset3 offset;
2107         count3 count;
2108 };
2109 typedef struct COMMIT3args COMMIT3args;
2110 
2111 struct COMMIT3resok {
2112         wcc_data file_wcc;
2113         writeverf3 verf;
2114 };
2115 typedef struct COMMIT3resok COMMIT3resok;
2116 
2117 struct COMMIT3resfail {
2118         wcc_data file_wcc;
2119 };
2120 typedef struct COMMIT3resfail COMMIT3resfail;
2121 
2122 struct COMMIT3res {
2123         nfsstat3 status;
2124         union {
2125                 COMMIT3resok ok;
2126                 COMMIT3resfail fail;
2127         } res_u;
2128 };
2129 typedef struct COMMIT3res COMMIT3res;
2130 
2131 #define NFS3_PROGRAM ((rpcprog_t)100003)
2132 #define NFS_V3 ((rpcvers_t)3)
2133 #define NFSPROC3_NULL ((rpcproc_t)0)
2134 #define NFSPROC3_GETATTR ((rpcproc_t)1)
2135 #define NFSPROC3_SETATTR ((rpcproc_t)2)
2136 #define NFSPROC3_LOOKUP ((rpcproc_t)3)
2137 #define NFSPROC3_ACCESS ((rpcproc_t)4)
2138 #define NFSPROC3_READLINK ((rpcproc_t)5)
2139 #define NFSPROC3_READ ((rpcproc_t)6)
2140 #define NFSPROC3_WRITE ((rpcproc_t)7)
2141 #define NFSPROC3_CREATE ((rpcproc_t)8)
2142 #define NFSPROC3_MKDIR ((rpcproc_t)9)
2143 #define NFSPROC3_SYMLINK ((rpcproc_t)10)
2144 #define NFSPROC3_MKNOD ((rpcproc_t)11)
2145 #define NFSPROC3_REMOVE ((rpcproc_t)12)
2146 #define NFSPROC3_RMDIR ((rpcproc_t)13)
2147 #define NFSPROC3_RENAME ((rpcproc_t)14)
2148 #define NFSPROC3_LINK ((rpcproc_t)15)
2149 #define NFSPROC3_READDIR ((rpcproc_t)16)
2150 #define NFSPROC3_READDIRPLUS ((rpcproc_t)17)
2151 #define NFSPROC3_FSSTAT ((rpcproc_t)18)
2152 #define NFSPROC3_FSINFO ((rpcproc_t)19)
2153 #define NFSPROC3_PATHCONF ((rpcproc_t)20)
2154 #define NFSPROC3_COMMIT ((rpcproc_t)21)
2155 
2156 #ifndef _KERNEL
2157 extern void             *nfsproc3_null_3();
2158 extern GETATTR3res      *nfsproc3_getattr_3();
2159 extern SETATTR3res      *nfsproc3_setattr_3();
2160 extern LOOKUP3res       *nfsproc3_lookup_3();
2161 extern ACCESS3res       *nfsproc3_access_3();
2162 extern READLINK3res     *nfsproc3_readlink_3();
2163 extern READ3res *nfsproc3_read_3();
2164 extern WRITE3res        *nfsproc3_write_3();
2165 extern CREATE3res       *nfsproc3_create_3();
2166 extern MKDIR3res        *nfsproc3_mkdir_3();
2167 extern SYMLINK3res      *nfsproc3_symlink_3();
2168 extern MKNOD3res        *nfsproc3_mknod_3();
2169 extern REMOVE3res       *nfsproc3_remove_3();
2170 extern RMDIR3res        *nfsproc3_rmdir_3();
2171 extern RENAME3res       *nfsproc3_rename_3();
2172 extern LINK3res *nfsproc3_link_3();
2173 extern READDIR3res      *nfsproc3_readdir_3();
2174 extern READDIRPLUS3res  *nfsproc3_readdirplus_3();
2175 extern FSSTAT3res       *nfsproc3_fsstat_3();
2176 extern FSINFO3res       *nfsproc3_fsinfo_3();
2177 extern PATHCONF3res     *nfsproc3_pathconf_3();
2178 extern COMMIT3res       *nfsproc3_commit_3();
2179 #endif  /* !_KERNEL */
2180 
2181 #ifdef _KERNEL
2182 /* the NFS Version 3 XDR functions */
2183 
2184 extern bool_t xdr_nfs_fh3(XDR *, nfs_fh3 *);
2185 extern bool_t xdr_nfslog_nfs_fh3(XDR *, nfs_fh3 *);
2186 extern bool_t xdr_nfs_fh3_server(XDR *, nfs_fh3 *);
2187 extern bool_t xdr_diropargs3(XDR *, diropargs3 *);
2188 extern bool_t xdr_post_op_attr(XDR *, post_op_attr *);
2189 extern bool_t xdr_post_op_fh3(XDR *, post_op_fh3 *);
2190 extern bool_t xdr_GETATTR3res(XDR *, GETATTR3res *);
2191 extern bool_t xdr_GETATTR3vres(XDR *, GETATTR3vres *);
2192 extern bool_t xdr_SETATTR3args(XDR *, SETATTR3args *);
2193 extern bool_t xdr_SETATTR3res(XDR *, SETATTR3res *);
2194 extern bool_t xdr_LOOKUP3res(XDR *, LOOKUP3res *);
2195 extern bool_t xdr_LOOKUP3vres(XDR *, LOOKUP3vres *);
2196 extern bool_t xdr_ACCESS3args(XDR *, ACCESS3args *);
2197 extern bool_t xdr_ACCESS3res(XDR *, ACCESS3res *);
2198 extern bool_t xdr_READLINK3args(XDR *, READLINK3args *);
2199 extern bool_t xdr_READLINK3res(XDR *, READLINK3res *);
2200 extern bool_t xdr_READ3args(XDR *, READ3args *);
2201 extern bool_t xdr_READ3res(XDR *, READ3res *);
2202 extern bool_t xdr_READ3vres(XDR *, READ3vres *);
2203 extern bool_t xdr_READ3uiores(XDR *, READ3uiores *);
2204 extern bool_t xdr_WRITE3args(XDR *, WRITE3args *);
2205 extern bool_t xdr_WRITE3res(XDR *, WRITE3res *);
2206 extern bool_t xdr_CREATE3args(XDR *, CREATE3args *);
2207 extern bool_t xdr_CREATE3res(XDR *, CREATE3res *);
2208 extern bool_t xdr_MKDIR3args(XDR *, MKDIR3args *);
2209 extern bool_t xdr_MKDIR3res(XDR *, MKDIR3res *);
2210 extern bool_t xdr_SYMLINK3args(XDR *, SYMLINK3args *);
2211 extern bool_t xdr_SYMLINK3res(XDR *, SYMLINK3res *);
2212 extern bool_t xdr_MKNOD3args(XDR *, MKNOD3args *);
2213 extern bool_t xdr_MKNOD3res(XDR *, MKNOD3res *);
2214 extern bool_t xdr_REMOVE3res(XDR *, REMOVE3res *);
2215 extern bool_t xdr_RMDIR3resfail(XDR *, RMDIR3resfail *);
2216 extern bool_t xdr_RMDIR3res(XDR *, RMDIR3res *);
2217 extern bool_t xdr_RENAME3args(XDR *, RENAME3args *);
2218 extern bool_t xdr_RENAME3res(XDR *, RENAME3res *);
2219 extern bool_t xdr_LINK3args(XDR *, LINK3args *);
2220 extern bool_t xdr_LINK3res(XDR *, LINK3res *);
2221 extern bool_t xdr_READDIR3args(XDR *, READDIR3args *);
2222 extern bool_t xdr_READDIR3res(XDR *, READDIR3res *);
2223 extern bool_t xdr_READDIR3vres(XDR *, READDIR3vres *);
2224 extern bool_t xdr_READDIRPLUS3args(XDR *, READDIRPLUS3args *);
2225 extern bool_t xdr_READDIRPLUS3res(XDR *, READDIRPLUS3res *);
2226 extern bool_t xdr_READDIRPLUS3vres(XDR *, READDIRPLUS3vres *);
2227 extern bool_t xdr_FSSTAT3res(XDR *, FSSTAT3res *);
2228 extern bool_t xdr_FSINFO3res(XDR *, FSINFO3res *);
2229 extern bool_t xdr_PATHCONF3res(XDR *, PATHCONF3res *);
2230 extern bool_t xdr_COMMIT3args(XDR *, COMMIT3args *);
2231 extern bool_t xdr_COMMIT3res(XDR *, COMMIT3res *);
2232 extern bool_t xdr_fastnfs_fh3(XDR *, nfs_fh3 **);
2233 
2234 /*
2235  * The NFS Version 3 service procedures.
2236  */
2237 struct exportinfo;      /* defined in nfs/export.h */
2238 struct servinfo;        /* defined in nfs/nfs_clnt.h */
2239 struct mntinfo;         /* defined in nfs/nfs_clnt.h */
2240 struct sec_ol;          /* defined in nfs/export.h */
2241 
2242 extern void     rfs3_getattr(GETATTR3args *, GETATTR3res *, struct exportinfo *,
2243     struct svc_req *, cred_t *, bool_t);
2244 extern void     *rfs3_getattr_getfh(GETATTR3args *);
2245 extern void     rfs3_setattr(SETATTR3args *, SETATTR3res *, struct exportinfo *,
2246     struct svc_req *, cred_t *, bool_t);
2247 extern void     *rfs3_setattr_getfh(SETATTR3args *);
2248 extern void     rfs3_lookup(LOOKUP3args *, LOOKUP3res *, struct exportinfo *,
2249     struct svc_req *, cred_t *, bool_t);
2250 extern void     *rfs3_lookup_getfh(LOOKUP3args *);
2251 extern void     rfs3_access(ACCESS3args *, ACCESS3res *, struct exportinfo *,
2252     struct svc_req *, cred_t *, bool_t);
2253 extern void     *rfs3_access_getfh(ACCESS3args *);
2254 extern void     rfs3_readlink(READLINK3args *, READLINK3res *,
2255     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
2256 extern void     *rfs3_readlink_getfh(READLINK3args *);
2257 extern void     rfs3_readlink_free(READLINK3res *);
2258 extern void     rfs3_read(READ3args *, READ3res *, struct exportinfo *,
2259     struct svc_req *, cred_t *, bool_t);
2260 extern void     *rfs3_read_getfh(READ3args *);
2261 extern void     rfs3_read_free(READ3res *);
2262 extern void     rfs3_write(WRITE3args *, WRITE3res *, struct exportinfo *,
2263     struct svc_req *, cred_t *, bool_t);
2264 extern void     *rfs3_write_getfh(WRITE3args *);
2265 extern void     rfs3_create(CREATE3args *, CREATE3res *, struct exportinfo *,
2266     struct svc_req *, cred_t *, bool_t);
2267 extern void     *rfs3_create_getfh(CREATE3args *);
2268 extern void     rfs3_mkdir(MKDIR3args *, MKDIR3res *, struct exportinfo *,
2269     struct svc_req *, cred_t *, bool_t);
2270 extern void     *rfs3_mkdir_getfh(MKDIR3args *);
2271 extern void     rfs3_symlink(SYMLINK3args *, SYMLINK3res *, struct exportinfo *,
2272     struct svc_req *, cred_t *, bool_t);
2273 extern void     *rfs3_symlink_getfh(SYMLINK3args *);
2274 extern void     rfs3_mknod(MKNOD3args *, MKNOD3res *, struct exportinfo *,
2275     struct svc_req *, cred_t *, bool_t);
2276 extern void     *rfs3_mknod_getfh(MKNOD3args *);
2277 extern void     rfs3_remove(REMOVE3args *, REMOVE3res *, struct exportinfo *,
2278     struct svc_req *, cred_t *, bool_t);
2279 extern void     *rfs3_remove_getfh(REMOVE3args *);
2280 extern void     rfs3_rmdir(RMDIR3args *, RMDIR3res *, struct exportinfo *,
2281     struct svc_req *, cred_t *, bool_t);
2282 extern void     *rfs3_rmdir_getfh(RMDIR3args *);
2283 extern void     rfs3_rename(RENAME3args *, RENAME3res *, struct exportinfo *,
2284     struct svc_req *, cred_t *, bool_t);
2285 extern void     *rfs3_rename_getfh(RENAME3args *);
2286 extern void     rfs3_link(LINK3args *, LINK3res *, struct exportinfo *,
2287     struct svc_req *, cred_t *, bool_t);
2288 extern void     *rfs3_link_getfh(LINK3args *);
2289 extern void     rfs3_readdir(READDIR3args *, READDIR3res *, struct exportinfo *,
2290     struct svc_req *, cred_t *, bool_t);
2291 extern void     *rfs3_readdir_getfh(READDIR3args *);
2292 extern void     rfs3_readdir_free(READDIR3res *);
2293 extern void     rfs3_readdirplus(READDIRPLUS3args *, READDIRPLUS3res *,
2294     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
2295 extern void     *rfs3_readdirplus_getfh(READDIRPLUS3args *);
2296 extern void     rfs3_readdirplus_free(READDIRPLUS3res *);
2297 extern void     rfs3_fsstat(FSSTAT3args *, FSSTAT3res *, struct exportinfo *,
2298     struct svc_req *, cred_t *, bool_t);
2299 extern void     *rfs3_fsstat_getfh(FSSTAT3args *);
2300 extern void     rfs3_fsinfo(FSINFO3args *, FSINFO3res *, struct exportinfo *,
2301     struct svc_req *, cred_t *, bool_t);
2302 extern void     *rfs3_fsinfo_getfh(FSINFO3args *);
2303 extern void     rfs3_pathconf(PATHCONF3args *, PATHCONF3res *,
2304     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
2305 extern void     *rfs3_pathconf_getfh(PATHCONF3args *);
2306 extern void     rfs3_commit(COMMIT3args *, COMMIT3res *, struct exportinfo *,
2307     struct svc_req *, cred_t *, bool_t);
2308 extern void     *rfs3_commit_getfh(COMMIT3args *);
2309 extern void     rfs3_srvrinit(void);
2310 extern void     rfs3_srvrfini(void);
2311 extern void     rfs3_srv_zone_init(nfs_globals_t *);
2312 extern void     rfs3_srv_zone_fini(nfs_globals_t *);
2313 
2314 extern int      nfs3_validate_caches(vnode_t *, cred_t *);
2315 extern void     nfs3_cache_post_op_attr(vnode_t *, post_op_attr *, hrtime_t,
2316     cred_t *);
2317 extern void     nfs3_cache_post_op_vattr(vnode_t *, post_op_vattr *, hrtime_t,
2318     cred_t *);
2319 extern void     nfs3_cache_wcc_data(vnode_t *, wcc_data *, hrtime_t, cred_t *);
2320 extern void     nfs3_attrcache(vnode_t *, fattr3 *, hrtime_t);
2321 extern int      nfs3_cache_fattr3(vnode_t *, fattr3 *, vattr_t *, hrtime_t,
2322     cred_t *);
2323 extern int      nfs3_getattr_otw(vnode_t *, struct vattr *, cred_t *);
2324 extern int      nfs3getattr(vnode_t *, struct vattr *, cred_t *);
2325 extern int      fattr3_to_vattr(vnode_t *, fattr3 *, struct vattr *);
2326 extern int      nfs3tsize(void);
2327 extern uint_t   nfs3_tsize(struct knetconfig *);
2328 extern uint_t   rfs3_tsize(struct svc_req *);
2329 extern int      vattr_to_sattr3(struct vattr *, sattr3 *);
2330 extern void     setdiropargs3(diropargs3 *, char *, vnode_t *);
2331 extern enum nfsstat3 puterrno3(int);
2332 extern int      geterrno3(enum nfsstat3);
2333 extern int      nfs3init(int, char *);
2334 extern void     nfs3fini(void);
2335 extern int      nfs3_vfsinit(void);
2336 extern void     nfs3_vfsfini(void);
2337 extern void     vattr_to_post_op_attr(struct vattr *, post_op_attr *);
2338 extern void     mblk_to_iov(mblk_t *, int, struct iovec *);
2339 extern int      rfs_publicfh_mclookup(char *, vnode_t *, cred_t *, vnode_t **,
2340     struct exportinfo **, struct sec_ol *);
2341 extern int      rfs_pathname(char *, vnode_t **, vnode_t **, vnode_t *,
2342     cred_t *, int);
2343 extern int      rfs_cross_mnt(vnode_t **, struct exportinfo **);
2344 extern int      rfs_climb_crossmnt(vnode_t **, struct exportinfo **, cred_t *);
2345 
2346 extern vtype_t          nf3_to_vt[];
2347 extern vfsops_t         *nfs3_vfsops;
2348 extern struct vnodeops  *nfs3_vnodeops;
2349 extern const struct fs_operation_def nfs3_vnodeops_template[];
2350 
2351 /*
2352  * Some servers do not properly update the attributes of the
2353  * directory when changes are made.  To allow interoperability
2354  * with these broken servers, the nfs_disable_rddir_cache
2355  * parameter can be used to disable readdir response caching.
2356  */
2357 extern int              nfs_disable_rddir_cache;
2358 
2359 /*
2360  * External functions called by the v2/v3 code into the v4 code
2361  */
2362 extern void     nfs4_clnt_init(void);
2363 extern void     nfs4_clnt_fini(void);
2364 
2365 /*
2366  * Does NFS4 server have a vnode delegated?  TRUE if so, FALSE if not.
2367  */
2368 extern bool_t   rfs4_check_delegated(int mode, vnode_t *, bool_t trunc);
2369 /*
2370  * VOP_GETATTR call. If a NFS4 delegation is present on the supplied vnode
2371  * call back to the delegated client to get attributes for AT_MTIME and
2372  * AT_SIZE. Invoke VOP_GETATTR to get all other attributes or all attributes
2373  * if no delegation is present.
2374  */
2375 extern int      rfs4_delegated_getattr(vnode_t *, vattr_t *, int, cred_t *);
2376 
2377 extern int      do_xattr_exists_check(vnode_t *, ulong_t *, cred_t *);
2378 
2379 extern int      protect_zfs_mntpt(vnode_t *);
2380 
2381 extern ts_label_t *nfs_getflabel(vnode_t *, struct exportinfo *);
2382 extern boolean_t do_rfs_label_check(bslabel_t *, vnode_t *, int,
2383     struct exportinfo *);
2384 
2385 /*
2386  * Copy Reduction support.
2387  * xuio_t wrapper with additional private data.
2388  */
2389 
2390 typedef struct nfs_xuio {
2391         xuio_t nu_uio;
2392         vnode_t *nu_vp;
2393         uint_t nu_ref;
2394         frtn_t nu_frtn;
2395 } nfs_xuio_t;
2396 
2397 extern xuio_t   *rfs_setup_xuio(vnode_t *);
2398 extern mblk_t   *uio_to_mblk(uio_t *);
2399 extern mblk_t   *rfs_read_alloc(uint_t, struct iovec **, int *);
2400 extern void     rfs_rndup_mblks(mblk_t *, uint_t, int);
2401 extern void     rfs_free_xuio(void *);
2402 
2403 #endif  /* _KERNEL */
2404 
2405 #ifdef  __cplusplus
2406 }
2407 #endif
2408 
2409 #endif  /* _NFS_NFS_H */