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 } nfs_globals_t;
 121 
 122 /*
 123  * Default delegation setting for the server ==> "on"
 124  */
 125 #define NFS_SERVER_DELEGATION_DEFAULT   (TRUE)
 126 
 127 /* Maximum size of data portion of a remote request */
 128 #define NFS_MAXDATA     8192
 129 #define NFS_MAXNAMLEN   255
 130 #define NFS_MAXPATHLEN  1024
 131 
 132 /*
 133  * Rpc retransmission parameters
 134  */
 135 #define NFS_TIMEO       11      /* initial timeout for clts in 10th of a sec */
 136 #define NFS_RETRIES     5       /* times to retry request */
 137 #define NFS_COTS_TIMEO  600     /* initial timeout for cots in 10th of a sec */
 138 
 139 /*
 140  * The value of UID_NOBODY/GID_NOBODY presented to the world via NFS.
 141  * UID_NOBODY/GID_NOBODY is translated to NFS_UID_NOBODY/NFS_GID_NOBODY
 142  * when being sent out over the network and NFS_UID_NOBODY/NFS_GID_NOBODY
 143  * is translated to UID_NOBODY/GID_NOBODY when received.
 144  */
 145 #define NFS_UID_NOBODY  -2
 146 #define NFS_GID_NOBODY  -2
 147 
 148 /*
 149  * maximum transfer size for different interfaces
 150  */
 151 #define ECTSIZE 2048
 152 #define IETSIZE 8192
 153 
 154 /*
 155  * WebNFS error status
 156  */
 157 enum wnfsstat {
 158         WNFSERR_CLNT_FLAVOR = 20001     /* invalid client sec flavor */
 159 };
 160 
 161 /*
 162  * Error status
 163  * Should include all possible net errors.
 164  * For now we just cast errno into an enum nfsstat.
 165  */
 166 enum nfsstat {
 167         NFS_OK = 0,                     /* no error */
 168         NFSERR_PERM = 1,                /* Not owner */
 169         NFSERR_NOENT = 2,               /* No such file or directory */
 170         NFSERR_IO = 5,                  /* I/O error */
 171         NFSERR_NXIO = 6,                /* No such device or address */
 172         NFSERR_ACCES = 13,              /* Permission denied */
 173         NFSERR_EXIST = 17,              /* File exists */
 174         NFSERR_XDEV = 18,               /* Cross-device link */
 175         NFSERR_NODEV = 19,              /* No such device */
 176         NFSERR_NOTDIR = 20,             /* Not a directory */
 177         NFSERR_ISDIR = 21,              /* Is a directory */
 178         NFSERR_INVAL = 22,              /* Invalid argument */
 179         NFSERR_FBIG = 27,               /* File too large */
 180         NFSERR_NOSPC = 28,              /* No space left on device */
 181         NFSERR_ROFS = 30,               /* Read-only file system */
 182         NFSERR_OPNOTSUPP = 45,          /* Operation not supported */
 183         NFSERR_NAMETOOLONG = 63,        /* File name too long */
 184         NFSERR_NOTEMPTY = 66,           /* Directory not empty */
 185         NFSERR_DQUOT = 69,              /* Disc quota exceeded */
 186         NFSERR_STALE = 70,              /* Stale NFS file handle */
 187         NFSERR_REMOTE = 71,             /* Object is remote */
 188         NFSERR_WFLUSH = 99              /* write cache flushed */
 189 };
 190 
 191 typedef enum nfsstat nfsstat;
 192 
 193 /*
 194  * File types
 195  */
 196 enum nfsftype {
 197         NFNON,
 198         NFREG,          /* regular file */
 199         NFDIR,          /* directory */
 200         NFBLK,          /* block special */
 201         NFCHR,          /* character special */
 202         NFLNK,          /* symbolic link */
 203         NFSOC           /* socket */
 204 };
 205 
 206 /*
 207  * Macros for converting device numbers to and from the format
 208  * SunOS 4.x used. SVR4 uses 14 bit majors and 18 bits minors,
 209  * SunOS 4.x used 8 bit majors and 8 bit minors. It isn't sufficient
 210  * to use the cmpdev() and expdev() macros because they only compress
 211  * 7 bit (and smaller) majors. We must compress 8 bit majors too.
 212  * If the major or minor exceeds 8 bits, then we send it out in
 213  * full 32 bit format and hope that the peer can deal with it.
 214  */
 215 
 216 #define SO4_BITSMAJOR   8       /* # of SunOS 4.x major device bits */
 217 #define SO4_BITSMINOR   8       /* # of SunOS 4.x minor device bits */
 218 #define SO4_MAXMAJ      0xff    /* SunOS 4.x max major value */
 219 #define SO4_MAXMIN      0xff    /* SunOS 4.x max minor value */
 220 
 221 /*
 222  * Convert to over-the-wire device number format
 223  */
 224 #define nfsv2_cmpdev(x) \
 225         ((uint32_t) \
 226         ((getmajor(x) > SO4_MAXMAJ || getminor(x) > SO4_MAXMIN) ? NODEV : \
 227         ((getmajor(x) << SO4_BITSMINOR) | (getminor(x) & SO4_MAXMIN))))
 228 
 229 /*
 230  * Convert from over-the-wire format to SVR4 device number format
 231  */
 232 #define nfsv2_expdev(x) \
 233         makedevice((((x) >> SO4_BITSMINOR) & SO4_MAXMAJ), (x) & SO4_MAXMIN)
 234 
 235 /*
 236  * Special kludge for fifos (named pipes)  [to adhere to NFS Protocol Spec]
 237  *
 238  * VFIFO is not in the protocol spec (VNON will be replaced by VFIFO)
 239  * so the over-the-wire representation is VCHR with a '-1' device number.
 240  *
 241  * NOTE: This kludge becomes unnecessary with the Protocol Revision,
 242  *       but it may be necessary to support it (backwards compatibility).
 243  */
 244 #define NFS_FIFO_TYPE   NFCHR
 245 #define NFS_FIFO_MODE   S_IFCHR
 246 #define NFS_FIFO_DEV    ((uint32_t)-1)
 247 
 248 /* identify fifo in nfs attributes */
 249 #define NA_ISFIFO(NA)   (((NA)->na_type == NFS_FIFO_TYPE) && \
 250                             ((NA)->na_rdev == NFS_FIFO_DEV))
 251 
 252 /* set fifo in nfs attributes */
 253 #define NA_SETFIFO(NA)  { \
 254                 (NA)->na_type = NFS_FIFO_TYPE; \
 255                 (NA)->na_rdev = NFS_FIFO_DEV; \
 256                 (NA)->na_mode = ((NA)->na_mode & ~S_IFMT) | NFS_FIFO_MODE; \
 257                 }
 258 
 259 /*
 260  * Check for time overflow using a kernel tunable to determine whether
 261  * we should accept or reject an unsigned 32-bit time value. Time value in NFS
 262  * v2/3 protocol is unsigned 32 bit, but ILP32 kernel only allows 31 bits.
 263  * In nfsv4, time value is a signed 64 bit, so needs to be checked for
 264  * overflow as well (e.g. for setattr). So define the tunable as follows:
 265  * nfs_allow_preepoch_time is TRUE if pre-epoch (negative) times are allowed
 266  * and is FALSE (the default) otherwise. For nfsv2/3 this means that
 267  * if negative times are allowed, the uint32_t time value is interpreted
 268  * as a signed int, otherwise as a large positive number. For nfsv4,
 269  * we use the value as is - except that if negative times are not allowed,
 270  * we will not accept a negative value otw.
 271  *
 272  * So for nfsv2/3 (uint32_t):
 273  *
 274  * If nfs_allow_preepoch_time is
 275  * FALSE, the maximum time value is INT32_MAX for 32-bit kernels and
 276  * UINT32_MAX for 64-bit kernels (to allow times larger than 2038)
 277  * and the minimum is zero. Note that in that case, a 32-bit application
 278  * running on a 64-bit kernel will not be able to access files with
 279  * the larger time values.
 280  * If nfs_allow_preepoch_time is TRUE, the maximum time value is INT32_MAX
 281  * for both kernel configurations and the minimum is INT32_MIN.
 282  *
 283  * And for nfsv4 (int64_t):
 284  *
 285  * nfsv4 allows for negative values in the protocol, and has a 64-bit
 286  * time field, so nfs_allow_preepoch_time can be ignored.
 287  */
 288 #ifdef _KERNEL
 289 
 290 extern bool_t           nfs_allow_preepoch_time;
 291 
 292 #ifdef _LP64
 293 
 294 /*
 295  * If no negative otw values are allowed, may use the full 32-bits of the
 296  * time to represent time later than 2038, by presenting the value as an
 297  * unsigned (but this can only be used by 64-bit apps due to cstat32
 298  * restrictions). If negative values are allowed, cannot represent times
 299  * after 2038. Either way, all 32 bits have a valid representation.
 300  */
 301 
 302 /* Check if nfstime4 seconds (int64_t) can be stored in the system time */
 303 #define NFS4_TIME_OK(tt)        TRUE
 304 
 305 
 306 #define NFS3_TIME_OVERFLOW(tt)  (FALSE)
 307 #define NFS2_TIME_OVERFLOW(tt)  (FALSE)
 308 
 309 /*
 310  * check if a time_t (int64_t) is ok when preepoch times are allowed -
 311  * nfsv2/3: every 32-bit value is accepted, but can't overflow 64->32.
 312  * nfsv4: every value is valid.
 313  */
 314 #define NFS_PREEPOCH_TIME_T_OK(tt)                                      \
 315         (((tt) >= (time_t)INT32_MIN) && ((tt) <= (time_t)INT32_MAX))
 316 
 317 /*
 318  * check if a time_t (int64_t) is ok when preepoch times are not allowed -
 319  * nfsv2/3: every positive 32-bit value is accepted, but can't overflow 64->32.
 320  * nfsv4: every value is valid.
 321  */
 322 #define NFS_NO_PREEPOCH_TIME_T_OK(tt)                                   \
 323         (((tt) >= 0) && ((tt) <= (time_t)(ulong_t)UINT32_MAX))
 324 
 325 #else /* not _LP64 */
 326 
 327 /*
 328  * Cannot represent times after 2038 in a 32-bit kernel, but we may wish to
 329  * restrict the use of negative values (which violate the protocol).
 330  * So if negative times allowed, all uint32 time values are valid. Otherwise
 331  * only those which are less than INT32_MAX (msb=0).
 332  *
 333  * NFSv4 uses int64_t for the time, so in a 32-bit kernel the nfsv4 value
 334  * must fit in an int32_t.
 335  */
 336 
 337 /* Only allow signed 32-bit time values */
 338 
 339 /* Check if an nfstime4 (int64_t) can be stored in the system time */
 340 #define NFS4_TIME_OK(tt)                                                \
 341         (((tt) <= INT32_MAX) &&      ((tt) >= INT32_MIN))
 342 
 343 #define NFS3_TIME_OVERFLOW(tt)  ((tt) > INT32_MAX)
 344 #define NFS2_TIME_OVERFLOW(tt)  ((tt) > INT32_MAX)
 345 
 346 /*
 347  * check if a time_t (int32_t) is ok when preepoch times are allowed -
 348  * every 32-bit value is accepted
 349  */
 350 #define NFS_PREEPOCH_TIME_T_OK(tt)      TRUE
 351 
 352 /*
 353  * check if a time_t (int32_t) is ok when preepoch times are not allowed -
 354  * only positive values are accepted.
 355  */
 356 #define NFS_NO_PREEPOCH_TIME_T_OK(tt)   ((tt) >= 0)
 357 
 358 #endif /* _LP64 */
 359 
 360 /* Check if an nfstime3 (uint32_t) can be stored in the system time */
 361 #define NFS3_TIME_OK(tt)                                                \
 362         (nfs_allow_preepoch_time || (!NFS3_TIME_OVERFLOW(tt)))
 363 
 364 /* Check if an nfs2_timeval (uint32_t) can be stored in the system time. */
 365 #define NFS2_TIME_OK(tt)                                                \
 366         (nfs_allow_preepoch_time || (!NFS2_TIME_OVERFLOW(tt)))
 367 
 368 /*
 369  * Test if time_t (signed long) can be sent over the wire - for v2/3 only if:
 370  * 1. The time value can fit in a uint32_t; and
 371  * 2. Either the time value is positive or allow preepoch times.
 372  * No restrictions for nfsv4.
 373  */
 374 #define NFS_TIME_T_OK(tt)                                               \
 375         (nfs_allow_preepoch_time ?                                      \
 376                 NFS_PREEPOCH_TIME_T_OK(tt) : NFS_NO_PREEPOCH_TIME_T_OK(tt))
 377 
 378 #define NFS4_TIME_T_OK(tt)              TRUE
 379 
 380 /* Test if all attr times are valid */
 381 #define NFS_VAP_TIME_OK(vap)                                            \
 382         (nfs_allow_preepoch_time ?                                      \
 383                 (NFS_PREEPOCH_TIME_T_OK((vap)->va_atime.tv_sec) &&   \
 384                 NFS_PREEPOCH_TIME_T_OK((vap)->va_mtime.tv_sec) &&    \
 385                 NFS_PREEPOCH_TIME_T_OK((vap)->va_ctime.tv_sec)) :    \
 386                 (NFS_NO_PREEPOCH_TIME_T_OK((vap)->va_atime.tv_sec) &&        \
 387                 NFS_NO_PREEPOCH_TIME_T_OK((vap)->va_mtime.tv_sec) && \
 388                 NFS_NO_PREEPOCH_TIME_T_OK((vap)->va_ctime.tv_sec)))
 389 
 390 #define NFS4_VAP_TIME_OK(vap)                   TRUE
 391 
 392 /*
 393  * To extend the sign or not extend the sign, that is the question.
 394  * Note: The correct way is to code a macro:
 395  * #define      NFS_TIME_T_CONVERT(tt)                                  \
 396  *      (nfs_allow_preepoch_time ? (int32_t)(tt) : (uint32_t)(tt))
 397  * But the 64-bit compiler does not extend the sign in that case (why?)
 398  * so we'll do it the ugly way...
 399  */
 400 #define NFS_TIME_T_CONVERT(systt, tt)           \
 401         if (nfs_allow_preepoch_time) {          \
 402                 systt = (int32_t)(tt);          \
 403         } else {                                \
 404                 systt = (uint32_t)(tt);         \
 405         }
 406 
 407 /* macro to check for overflowed time attribute fields - version 3 */
 408 #define NFS3_FATTR_TIME_OK(attrs)                       \
 409         (NFS3_TIME_OK((attrs)->atime.seconds) &&     \
 410         NFS3_TIME_OK((attrs)->mtime.seconds) &&              \
 411         NFS3_TIME_OK((attrs)->ctime.seconds))
 412 
 413 /* macro to check for overflowed time attribute fields - version 2 */
 414 #define NFS2_FATTR_TIME_OK(attrs)                       \
 415         (NFS2_TIME_OK((attrs)->na_atime.tv_sec) &&   \
 416         NFS2_TIME_OK((attrs)->na_mtime.tv_sec) &&    \
 417         NFS2_TIME_OK((attrs)->na_ctime.tv_sec))
 418 
 419 /* Check that a size3 value is not overflowed */
 420 #define NFS3_SIZE_OK(size)      ((size) <= MAXOFFSET_T)
 421 
 422 #endif /* _KERNEL */
 423 
 424 /*
 425  * Size of an fhandle in bytes
 426  */
 427 #define NFS_FHSIZE      32
 428 
 429 struct nfs_fid {
 430         ushort_t nf_len;
 431         ushort_t nf_pad;
 432         char    nf_data[NFS_FHSIZE];
 433 };
 434 
 435 /*
 436  * "Legacy" filehandles use NFS_FHMAXDATA (10) byte fids. Filesystems that
 437  * return a larger fid than NFS_FHMAXDATA, such as ZFS's .zfs snapshot
 438  * directory, can use up to (((64 - 8) / 2) - 2) bytes for their fid.
 439  * This currently holds for both NFSv3 and NFSv4.
 440  */
 441 #define NFS_FHMAXDATA           10
 442 #define NFS_FH3MAXDATA          26
 443 #define NFS_FH4MAXDATA          26
 444 
 445 /*
 446  * The original nfs file handle size for version 3 was 32 which was
 447  * the same in version 2; now we're making it bigger to to deal with
 448  * ZFS snapshot FIDs.
 449  *
 450  * If the size of fhandle3_t changes or if Version 3 uses some other
 451  * filehandle format, this constant may need to change.
 452  */
 453 
 454 #define NFS3_OLDFHSIZE  32
 455 #define NFS3_MAXFHSIZE  64
 456 
 457 /*
 458  * This is the actual definition of a legacy filehandle.  There is some
 459  * dependence on this layout in NFS-related code, particularly in the
 460  * user-level lock manager, so be careful about changing it.
 461  *
 462  * Currently only NFSv2 uses this structure.
 463  */
 464 
 465 typedef struct svcfh {
 466         fsid_t  fh_fsid;                        /* filesystem id */
 467         ushort_t fh_len;                        /* file number length */
 468         char    fh_data[NFS_FHMAXDATA];         /* and data */
 469         ushort_t fh_xlen;                       /* export file number length */
 470         char    fh_xdata[NFS_FHMAXDATA];        /* and data */
 471 } fhandle_t;
 472 
 473 /*
 474  * This is the in-memory structure for an NFSv3 extended filehandle.
 475  */
 476 typedef struct {
 477         fsid_t  _fh3_fsid;                      /* filesystem id */
 478         ushort_t _fh3_len;                      /* file number length */
 479         char    _fh3_data[NFS_FH3MAXDATA];              /* and data */
 480         ushort_t _fh3_xlen;                     /* export file number length */
 481         char    _fh3_xdata[NFS_FH3MAXDATA];     /* and data */
 482 } fhandle3_t;
 483 
 484 /*
 485  * This is the in-memory structure for an NFSv4 extended filehandle.
 486  */
 487 typedef struct {
 488         fsid_t  fhx_fsid;                       /* filesystem id */
 489         ushort_t fhx_len;                       /* file number length */
 490         char    fhx_data[NFS_FH4MAXDATA];       /* and data */
 491         ushort_t fhx_xlen;                      /* export file number length */
 492         char    fhx_xdata[NFS_FH4MAXDATA];      /* and data */
 493 } fhandle4_t;
 494 
 495 /*
 496  * Arguments to remote write and writecache
 497  */
 498 /*
 499  * The `over the wire' representation of the first four arguments.
 500  */
 501 struct otw_nfswriteargs {
 502         fhandle_t       otw_wa_fhandle;
 503         uint32_t        otw_wa_begoff;
 504         uint32_t        otw_wa_offset;
 505         uint32_t        otw_wa_totcount;
 506 };
 507 
 508 struct nfswriteargs {
 509         struct otw_nfswriteargs *wa_args;       /* ptr to the otw arguments */
 510         struct otw_nfswriteargs wa_args_buf;    /* space for otw arguments */
 511         uint32_t        wa_count;
 512         char            *wa_data;       /* data to write (up to NFS_MAXDATA) */
 513         mblk_t          *wa_mblk;       /* pointer to mblks containing data */
 514 #ifdef _KERNEL
 515         /* rdma related info */
 516         struct clist    *wa_rlist;
 517         CONN            *wa_conn;
 518 #endif /* _KERNEL */
 519 };
 520 #define wa_fhandle      wa_args->otw_wa_fhandle
 521 #define wa_begoff       wa_args->otw_wa_begoff
 522 #define wa_offset       wa_args->otw_wa_offset
 523 #define wa_totcount     wa_args->otw_wa_totcount
 524 
 525 /*
 526  * NFS timeval struct using unsigned int as specified in V2 protocol.
 527  * tv_sec and tv_usec used to match existing code.
 528  */
 529 struct nfs2_timeval {
 530         uint32_t tv_sec;
 531         uint32_t tv_usec;
 532 };
 533 typedef struct nfs2_timeval nfs2_timeval;
 534 
 535 /*
 536  * File attributes
 537  */
 538 struct nfsfattr {
 539         enum nfsftype   na_type;        /* file type */
 540         uint32_t        na_mode;        /* protection mode bits */
 541         uint32_t        na_nlink;       /* # hard links */
 542         uint32_t        na_uid;         /* owner user id */
 543         uint32_t        na_gid;         /* owner group id */
 544         uint32_t        na_size;        /* file size in bytes */
 545         uint32_t        na_blocksize;   /* preferred block size */
 546         uint32_t        na_rdev;        /* special device # */
 547         uint32_t        na_blocks;      /* Kb of disk used by file */
 548         uint32_t        na_fsid;        /* device # */
 549         uint32_t        na_nodeid;      /* inode # */
 550         struct nfs2_timeval na_atime;   /* time of last access */
 551         struct nfs2_timeval na_mtime;   /* time of last modification */
 552         struct nfs2_timeval na_ctime;   /* time of last change */
 553 };
 554 
 555 #define n2v_type(x)     (NA_ISFIFO(x) ? VFIFO : nf_to_vt[(x)->na_type])
 556 #define n2v_rdev(x)     (NA_ISFIFO(x) ? 0 : (x)->na_rdev)
 557 
 558 /*
 559  * Arguments to remote read
 560  */
 561 struct nfsreadargs {
 562         fhandle_t       ra_fhandle;     /* handle for file */
 563         uint32_t        ra_offset;      /* byte offset in file */
 564         uint32_t        ra_count;       /* immediate read count */
 565         uint32_t        ra_totcount;    /* total read cnt (from this offset) */
 566 #ifdef _KERNEL
 567         /* used in rdma transports */
 568         caddr_t         ra_data;        /* destination for read data */
 569         struct clist    *ra_wlist;
 570         CONN            *ra_conn;
 571 #endif
 572 };
 573 
 574 /*
 575  * Status OK portion of remote read reply
 576  */
 577 struct nfsrrok {
 578         struct nfsfattr rrok_attr;      /* attributes, need for pagin */
 579         uint32_t        rrok_count;     /* bytes of data */
 580         char            *rrok_data;     /* data (up to NFS_MAXDATA bytes) */
 581         uint_t          rrok_bufsize;   /* size of kmem_alloc'd buffer */
 582         mblk_t          *rrok_mp;       /* mblk_t contains data for reply */
 583 #ifdef _KERNEL
 584         uint_t          rrok_wlist_len;
 585         struct clist    *rrok_wlist;
 586 #endif
 587 };
 588 
 589 /*
 590  * Reply from remote read
 591  */
 592 struct nfsrdresult {
 593         nfsstat rr_status;                      /* status of read */
 594         union {
 595                 struct nfsrrok  rr_ok_u;        /* attributes, need for pagin */
 596         } rr_u;
 597 };
 598 #define rr_ok           rr_u.rr_ok_u
 599 #define rr_attr         rr_u.rr_ok_u.rrok_attr
 600 #define rr_count        rr_u.rr_ok_u.rrok_count
 601 #define rr_bufsize      rr_u.rr_ok_u.rrok_bufsize
 602 #define rr_data         rr_u.rr_ok_u.rrok_data
 603 #define rr_mp           rr_u.rr_ok_u.rrok_mp
 604 
 605 /*
 606  * File attributes which can be set
 607  */
 608 struct nfssattr {
 609         uint32_t        sa_mode;        /* protection mode bits */
 610         uint32_t        sa_uid;         /* owner user id */
 611         uint32_t        sa_gid;         /* owner group id */
 612         uint32_t        sa_size;        /* file size in bytes */
 613         struct nfs2_timeval sa_atime;   /* time of last access */
 614         struct nfs2_timeval sa_mtime;   /* time of last modification */
 615 };
 616 
 617 
 618 /*
 619  * Reply status with file attributes
 620  */
 621 struct nfsattrstat {
 622         nfsstat ns_status;                      /* reply status */
 623         union {
 624                 struct nfsfattr ns_attr_u;      /* NFS_OK: file attributes */
 625         } ns_u;
 626 };
 627 #define ns_attr ns_u.ns_attr_u
 628 
 629 
 630 /*
 631  * NFS_OK part of read sym link reply union
 632  */
 633 struct nfssrok {
 634         uint32_t srok_count;    /* size of string */
 635         char    *srok_data;     /* string (up to NFS_MAXPATHLEN bytes) */
 636 };
 637 
 638 /*
 639  * Result of reading symbolic link
 640  */
 641 struct nfsrdlnres {
 642         nfsstat rl_status;                      /* status of symlink read */
 643         union {
 644                 struct nfssrok  rl_srok_u;      /* name of linked to */
 645         } rl_u;
 646 };
 647 #define rl_srok         rl_u.rl_srok_u
 648 #define rl_count        rl_u.rl_srok_u.srok_count
 649 #define rl_data         rl_u.rl_srok_u.srok_data
 650 
 651 
 652 /*
 653  * Arguments to readdir
 654  */
 655 struct nfsrddirargs {
 656         fhandle_t rda_fh;       /* directory handle */
 657         uint32_t rda_offset;    /* offset in directory (opaque) */
 658         uint32_t rda_count;     /* number of directory bytes to read */
 659 };
 660 
 661 /*
 662  * NFS_OK part of readdir result
 663  */
 664 struct nfsrdok {
 665         uint32_t rdok_offset;           /* next offset (opaque) */
 666         uint32_t rdok_size;             /* size in bytes of entries */
 667         bool_t  rdok_eof;               /* true if last entry is in result */
 668         struct dirent64 *rdok_entries;  /* variable number of entries */
 669 };
 670 
 671 /*
 672  * Readdir result
 673  */
 674 struct nfsrddirres {
 675         nfsstat rd_status;
 676         uint_t          rd_bufsize;     /* client request size (not xdr'ed) */
 677         union {
 678                 struct nfsrdok rd_rdok_u;
 679         } rd_u;
 680 };
 681 #define rd_rdok         rd_u.rd_rdok_u
 682 #define rd_offset       rd_u.rd_rdok_u.rdok_offset
 683 #define rd_size         rd_u.rd_rdok_u.rdok_size
 684 #define rd_eof          rd_u.rd_rdok_u.rdok_eof
 685 #define rd_entries      rd_u.rd_rdok_u.rdok_entries
 686 
 687 
 688 /*
 689  * Arguments for directory operations
 690  */
 691 struct nfsdiropargs {
 692         fhandle_t       *da_fhandle;    /* pointer to directory file handle */
 693         char            *da_name;       /* name (up to NFS_MAXNAMLEN bytes) */
 694         fhandle_t       da_fhandle_buf; /* directory file handle */
 695         int             da_flags;       /* flags, see below */
 696 };
 697 #define DA_FREENAME     1
 698 
 699 /*
 700  * NFS_OK part of directory operation result
 701  */
 702 struct  nfsdrok {
 703         fhandle_t       drok_fhandle;   /* result file handle */
 704         struct nfsfattr drok_attr;      /* result file attributes */
 705 };
 706 
 707 /*
 708  * Results from directory operation
 709  */
 710 struct  nfsdiropres {
 711         nfsstat dr_status;                      /* result status */
 712         union {
 713                 struct  nfsdrok dr_drok_u;      /* NFS_OK result */
 714         } dr_u;
 715 };
 716 #define dr_drok         dr_u.dr_drok_u
 717 #define dr_fhandle      dr_u.dr_drok_u.drok_fhandle
 718 #define dr_attr         dr_u.dr_drok_u.drok_attr
 719 
 720 /*
 721  * arguments to setattr
 722  */
 723 struct nfssaargs {
 724         fhandle_t       saa_fh;         /* fhandle of file to be set */
 725         struct nfssattr saa_sa;         /* new attributes */
 726 };
 727 
 728 /*
 729  * arguments to create and mkdir
 730  */
 731 struct nfscreatargs {
 732         struct nfsdiropargs     ca_da;  /* file name to create and parent dir */
 733         struct nfssattr         *ca_sa; /* initial attributes */
 734         struct nfssattr         ca_sa_buf;      /* space to store attributes */
 735 };
 736 
 737 /*
 738  * arguments to link
 739  */
 740 struct nfslinkargs {
 741         fhandle_t               *la_from;       /* old file */
 742         fhandle_t               la_from_buf;    /* old file */
 743         struct nfsdiropargs     la_to;          /* new file and parent dir */
 744 };
 745 
 746 /*
 747  * arguments to rename
 748  */
 749 struct nfsrnmargs {
 750         struct nfsdiropargs rna_from;   /* old file and parent dir */
 751         struct nfsdiropargs rna_to;     /* new file and parent dir */
 752 };
 753 
 754 /*
 755  * arguments to symlink
 756  */
 757 struct nfsslargs {
 758         struct nfsdiropargs     sla_from;       /* old file and parent dir */
 759         char                    *sla_tnm;       /* new name */
 760         int                     sla_tnm_flags;  /* flags for name */
 761         struct nfssattr         *sla_sa;        /* attributes */
 762         struct nfssattr         sla_sa_buf;     /* attributes buffer */
 763 };
 764 #define SLA_FREETNM     1
 765 
 766 /*
 767  * NFS_OK part of statfs operation
 768  */
 769 struct nfsstatfsok {
 770         uint32_t fsok_tsize;    /* preferred transfer size in bytes */
 771         uint32_t fsok_bsize;    /* fundamental file system block size */
 772         uint32_t fsok_blocks;   /* total blocks in file system */
 773         uint32_t fsok_bfree;    /* free blocks in fs */
 774         uint32_t fsok_bavail;   /* free blocks avail to non-superuser */
 775 };
 776 
 777 /*
 778  * Results of statfs operation
 779  */
 780 struct nfsstatfs {
 781         nfsstat fs_status;                      /* result status */
 782         union {
 783                 struct  nfsstatfsok fs_fsok_u;  /* NFS_OK result */
 784         } fs_u;
 785 };
 786 #define fs_fsok         fs_u.fs_fsok_u
 787 #define fs_tsize        fs_u.fs_fsok_u.fsok_tsize
 788 #define fs_bsize        fs_u.fs_fsok_u.fsok_bsize
 789 #define fs_blocks       fs_u.fs_fsok_u.fsok_blocks
 790 #define fs_bfree        fs_u.fs_fsok_u.fsok_bfree
 791 #define fs_bavail       fs_u.fs_fsok_u.fsok_bavail
 792 
 793 #ifdef _KERNEL
 794 /*
 795  * XDR routines for handling structures defined above
 796  */
 797 extern bool_t   xdr_attrstat(XDR *, struct nfsattrstat *);
 798 extern bool_t   xdr_fastattrstat(XDR *, struct nfsattrstat *);
 799 extern bool_t   xdr_creatargs(XDR *, struct nfscreatargs *);
 800 extern bool_t   xdr_diropargs(XDR *, struct nfsdiropargs *);
 801 extern bool_t   xdr_diropres(XDR *, struct nfsdiropres *);
 802 extern bool_t   xdr_fastdiropres(XDR *, struct nfsdiropres *);
 803 extern bool_t   xdr_drok(XDR *, struct nfsdrok *);
 804 #ifdef _LITTLE_ENDIAN
 805 extern bool_t   xdr_fastdrok(XDR *, struct nfsdrok *);
 806 extern bool_t   xdr_fastfattr(XDR *, struct nfsfattr *);
 807 #endif
 808 extern bool_t   xdr_fattr(XDR *, struct nfsfattr *);
 809 extern bool_t   xdr_fhandle(XDR *, fhandle_t *);
 810 extern bool_t   xdr_fastfhandle(XDR *, fhandle_t **);
 811 extern bool_t   xdr_linkargs(XDR *, struct nfslinkargs *);
 812 extern bool_t   xdr_rddirargs(XDR *, struct nfsrddirargs *);
 813 extern bool_t   xdr_putrddirres(XDR *, struct nfsrddirres *);
 814 extern bool_t   xdr_getrddirres(XDR *, struct nfsrddirres *);
 815 extern bool_t   xdr_rdlnres(XDR *, struct nfsrdlnres *);
 816 extern bool_t   xdr_rdresult(XDR *, struct nfsrdresult *);
 817 extern bool_t   xdr_readargs(XDR *, struct nfsreadargs *);
 818 extern bool_t   xdr_readlink(XDR *, fhandle_t *);
 819 extern bool_t   xdr_rnmargs(XDR *, struct nfsrnmargs *);
 820 extern bool_t   xdr_rrok(XDR *, struct nfsrrok *);
 821 extern bool_t   xdr_saargs(XDR *, struct nfssaargs *);
 822 extern bool_t   xdr_sattr(XDR *, struct nfssattr *);
 823 extern bool_t   xdr_slargs(XDR *, struct nfsslargs *);
 824 extern bool_t   xdr_srok(XDR *, struct nfssrok *);
 825 extern bool_t   xdr_nfs2_timeval(XDR *, struct nfs2_timeval *);
 826 extern bool_t   xdr_writeargs(XDR *, struct nfswriteargs *);
 827 extern bool_t   xdr_fsok(XDR *, struct nfsstatfsok *);
 828 #ifdef _LITTLE_ENDIAN
 829 extern bool_t   xdr_fastfsok(XDR *, struct nfsstatfsok *);
 830 extern bool_t   xdr_fastenum(XDR *, enum_t *);
 831 #endif
 832 extern bool_t   xdr_statfs(XDR *, struct nfsstatfs *);
 833 extern bool_t   xdr_faststatfs(XDR *, struct nfsstatfs *);
 834 #endif
 835 
 836 /*
 837  * Remote file service routines
 838  */
 839 #define RFS_NULL        0
 840 #define RFS_GETATTR     1
 841 #define RFS_SETATTR     2
 842 #define RFS_ROOT        3
 843 #define RFS_LOOKUP      4
 844 #define RFS_READLINK    5
 845 #define RFS_READ        6
 846 #define RFS_WRITECACHE  7
 847 #define RFS_WRITE       8
 848 #define RFS_CREATE      9
 849 #define RFS_REMOVE      10
 850 #define RFS_RENAME      11
 851 #define RFS_LINK        12
 852 #define RFS_SYMLINK     13
 853 #define RFS_MKDIR       14
 854 #define RFS_RMDIR       15
 855 #define RFS_READDIR     16
 856 #define RFS_STATFS      17
 857 #define RFS_NPROC       18
 858 
 859 #ifdef _KERNEL
 860 /*
 861  * The NFS Version 2 service procedures
 862  */
 863 struct exportinfo;      /* defined in nfs/export.h */
 864 struct servinfo;        /* defined in nfs/nfs_clnt.h */
 865 struct mntinfo;         /* defined in nfs/nfs_clnt.h */
 866 
 867 extern void     rfs_getattr(fhandle_t *, struct nfsattrstat *,
 868     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 869 extern void     *rfs_getattr_getfh(fhandle_t *);
 870 extern void     rfs_setattr(struct nfssaargs *, struct nfsattrstat *,
 871     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 872 extern void     *rfs_setattr_getfh(struct nfssaargs *);
 873 extern void     rfs_lookup(struct nfsdiropargs *, struct nfsdiropres *,
 874     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 875 extern void     *rfs_lookup_getfh(struct nfsdiropargs *);
 876 extern void     rfs_readlink(fhandle_t *, struct nfsrdlnres *,
 877     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 878 extern void     *rfs_readlink_getfh(fhandle_t *);
 879 extern void     rfs_rlfree(struct nfsrdlnres *);
 880 extern void     rfs_read(struct nfsreadargs *, struct nfsrdresult *,
 881     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 882 extern void     *rfs_read_getfh(struct nfsreadargs *);
 883 extern void     rfs_rdfree(struct nfsrdresult *);
 884 extern void     rfs_write_sync(struct nfswriteargs *, struct nfsattrstat *,
 885     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 886 extern void     rfs_write(struct nfswriteargs *, struct nfsattrstat *,
 887     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 888 extern void     *rfs_write_getfh(struct nfswriteargs *);
 889 extern void     rfs_create(struct nfscreatargs *, struct nfsdiropres *,
 890     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 891 extern void     *rfs_create_getfh(struct nfscreatargs *);
 892 extern void     rfs_remove(struct nfsdiropargs *, enum nfsstat *,
 893     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 894 extern void     *rfs_remove_getfh(struct nfsdiropargs *);
 895 extern void     rfs_rename(struct nfsrnmargs *, enum nfsstat *,
 896     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 897 extern void     *rfs_rename_getfh(struct nfsrnmargs *);
 898 extern void     rfs_link(struct nfslinkargs *, enum nfsstat *,
 899     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 900 extern void     *rfs_link_getfh(struct nfslinkargs *);
 901 extern void     rfs_symlink(struct nfsslargs *, enum nfsstat *,
 902     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 903 extern void     *rfs_symlink_getfh(struct nfsslargs *);
 904 extern void     rfs_mkdir(struct nfscreatargs *, struct nfsdiropres *,
 905     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 906 extern void     *rfs_mkdir_getfh(struct nfscreatargs *);
 907 extern void     rfs_rmdir(struct nfsdiropargs *, enum nfsstat *,
 908     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 909 extern void     *rfs_rmdir_getfh(struct nfsdiropargs *);
 910 extern void     rfs_readdir(struct nfsrddirargs *, struct nfsrddirres *,
 911     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
 912 extern void     *rfs_readdir_getfh(struct nfsrddirargs *);
 913 extern void     rfs_rddirfree(struct nfsrddirres *);
 914 extern void     rfs_statfs(fhandle_t *, struct nfsstatfs *, struct exportinfo *,
 915     struct svc_req *, cred_t *, bool_t);
 916 extern void     *rfs_statfs_getfh(fhandle_t *);
 917 extern void     rfs_srvrinit(void);
 918 extern void     rfs_srvrfini(void);
 919 extern void     rfs_srv_zone_init(nfs_globals_t *);
 920 extern void     rfs_srv_zone_fini(nfs_globals_t *);
 921 
 922 /*
 923  * flags to define path types during Multi Component Lookups
 924  * using the public filehandle
 925  */
 926 #define URLPATH         0x01    /* Universal Resource Locator path */
 927 #define NATIVEPATH      0x02    /* Native path, i.e., via mount protocol */
 928 #define SECURITY_QUERY  0x04    /* Security query */
 929 
 930 /* index for svstat_ptr */
 931 enum nfs_svccounts {NFS_CALLS, NFS_BADCALLS, NFS_REFERRALS, NFS_REFERLINKS};
 932 
 933 /*      function defs for NFS kernel */
 934 extern int      nfs_waitfor_purge_complete(vnode_t *);
 935 extern int      nfs_validate_caches(vnode_t *, cred_t *);
 936 extern void     nfs_purge_caches(vnode_t *, int, cred_t *);
 937 extern void     nfs_purge_rddir_cache(vnode_t *);
 938 extern void     nfs_attrcache(vnode_t *, struct nfsfattr *, hrtime_t);
 939 extern int      nfs_cache_fattr(vnode_t *, struct nfsfattr *, vattr_t *,
 940     hrtime_t, cred_t *);
 941 extern void     nfs_attr_cache(vnode_t *, vattr_t *, hrtime_t, cred_t *);
 942 extern void     nfs_attrcache_va(vnode_t *, struct vattr *);
 943 extern int      nfs_getattr_otw(vnode_t *, struct vattr *, cred_t *);
 944 extern int      nfsgetattr(vnode_t *, struct vattr *, cred_t *);
 945 extern int      nattr_to_vattr(vnode_t *, struct nfsfattr *, struct vattr *);
 946 extern void     nfs_async_manager(struct vfs *);
 947 extern void     nfs_async_manager_stop(struct vfs *);
 948 extern void     nfs_async_stop(struct vfs *);
 949 extern int      nfs_async_stop_sig(struct vfs *);
 950 extern int      nfs_clntinit(void);
 951 extern void     nfs_clntfini(void);
 952 extern int      nfstsize(void);
 953 extern void     nfs_srvinit(void);
 954 extern void     nfs_srvfini(void);
 955 extern int      vattr_to_sattr(struct vattr *, struct nfssattr *);
 956 extern void     setdiropargs(struct nfsdiropargs *, char *, vnode_t *);
 957 extern int      setdirgid(vnode_t *, gid_t *, cred_t *);
 958 extern int      setdirmode(vnode_t *, mode_t *, cred_t *);
 959 extern int      newnum(void);
 960 extern char     *newname(void);
 961 extern int      nfs_subrinit(void);
 962 extern void     nfs_subrfini(void);
 963 extern enum nfsstat puterrno(int);
 964 extern int      geterrno(enum nfsstat);
 965 extern int      nfsinit(int, char *);
 966 extern void     nfsfini(void);
 967 extern int      nfs_vfsinit(void);
 968 extern void     nfs_vfsfini(void);
 969 extern int      nfs_dump(vnode_t *, caddr_t, offset_t, offset_t,
 970     caller_context_t *);
 971 extern void     nfs_perror(int, char *, ...);
 972 extern void     nfs_cmn_err(int, int, char *, ...);
 973 extern int      nfs_addcllock(vnode_t *, struct flock64 *);
 974 extern void     nfs_rmcllock(vnode_t *, struct flock64 *);
 975 extern void     nfs_lockrelease(vnode_t *, int, offset_t, cred_t *);
 976 extern int      vattr_to_nattr(struct vattr *, struct nfsfattr *);
 977 extern int      mount_root(char *, char *, int, struct nfs_args *, int *);
 978 extern void     nfs_lockcompletion(vnode_t *, int);
 979 extern void     nfs_add_locking_id(vnode_t *, pid_t, int, char *, int);
 980 extern void     nfs3copyfh(caddr_t, vnode_t *);
 981 extern void     nfscopyfh(caddr_t, vnode_t *);
 982 extern int      nfs3lookup(vnode_t *, char *, vnode_t **, struct pathname *,
 983     int, vnode_t *, cred_t *, int);
 984 extern int      nfslookup(vnode_t *, char *, vnode_t **, struct pathname *, int,
 985     vnode_t *, cred_t *, int);
 986 extern void     sv_free(struct servinfo *);
 987 extern int      nfsauth_access(struct exportinfo *, struct svc_req *, cred_t *,
 988     uid_t *, gid_t *, uint_t *, gid_t **);
 989 extern void     nfsauth_init(void);
 990 extern void     nfsauth_fini(void);
 991 extern void     nfsauth_zone_init(nfs_globals_t *);
 992 extern void     nfsauth_zone_fini(nfs_globals_t *);
 993 extern void     nfsauth_zone_shutdown(nfs_globals_t *);
 994 extern int      nfs_setopts(vnode_t *, model_t, struct nfs_args *);
 995 extern int      nfs_mount_label_policy(vfs_t *, struct netbuf *,
 996     struct knetconfig *, cred_t *);
 997 extern boolean_t nfs_has_ctty(void);
 998 extern nfs_globals_t *nfs_srv_getzg(void);
 999 extern void     nfs_srv_stop_all(void);
1000 extern void     nfs_srv_quiesce_all(void);
1001 extern int      rfs4_dss_setpaths(char *, size_t);
1002 extern int      nfs_setmod_check(page_t *);
1003 
1004 extern time_t   rfs4_lease_time;
1005 extern time_t   rfs4_grace_period;
1006 extern nvlist_t *rfs4_dss_paths, *rfs4_dss_oldpaths;
1007 
1008 extern kstat_named_t    *global_svstat_ptr[];
1009 
1010 extern zone_key_t       nfssrv_zone_key;
1011 extern list_t           nfssrv_globals_list;
1012 extern krwlock_t        nfssrv_globals_rwl;
1013 
1014 extern krwlock_t        rroklock;
1015 extern vtype_t          nf_to_vt[];
1016 extern kstat_named_t    *rfsproccnt_v2_ptr;
1017 extern kmutex_t         nfs_minor_lock;
1018 extern int              nfs_major;
1019 extern int              nfs_minor;
1020 extern vfsops_t         *nfs_vfsops;
1021 extern struct vnodeops  *nfs_vnodeops;
1022 extern const struct fs_operation_def nfs_vnodeops_template[];
1023 extern int              nfsfstyp;
1024 extern void             (*nfs_srv_quiesce_func)(void);
1025 extern int              (*nfs_srv_dss_func)(char *, size_t);
1026 
1027 /*
1028  * Per-zone stats as consumed by nfsstat(1m)
1029  */
1030 struct nfs_version_stats {
1031         kstat_named_t   *aclreqcnt_ptr;         /* nfs_acl:0:aclreqcnt_v? */
1032         kstat_named_t   *aclproccnt_ptr;        /* nfs_acl:0:aclproccnt_v? */
1033         kstat_named_t   *rfsreqcnt_ptr;         /* nfs:0:rfsreqcnt_v? */
1034         kstat_named_t   *rfsproccnt_ptr;        /* nfs:0:rfsproccnt_v? */
1035 };
1036 
1037 /*
1038  * A bit of asymmetry: nfs:0:nfs_client isn't part of this structure.
1039  */
1040 struct nfs_stats {
1041         kstat_named_t           *nfs_stats_svstat_ptr[NFS_VERSMAX + 1];
1042         struct nfs_version_stats        nfs_stats_v2;
1043         struct nfs_version_stats        nfs_stats_v3;
1044         struct nfs_version_stats        nfs_stats_v4;
1045 };
1046 
1047 /*
1048  * Key used to retrieve counters.
1049  */
1050 extern zone_key_t nfsstat_zone_key;
1051 
1052 /*
1053  * Zone callback functions.
1054  */
1055 extern void     *nfsstat_zone_init(zoneid_t);
1056 extern void     nfsstat_zone_fini(zoneid_t, void *);
1057 
1058 #endif  /* _KERNEL */
1059 
1060 /*
1061  * Version 3 declarations and definitions.
1062  */
1063 
1064 #define NFS3_FHSIZE 64
1065 #define NFS3_COOKIEVERFSIZE 8
1066 #define NFS3_CREATEVERFSIZE 8
1067 #define NFS3_WRITEVERFSIZE 8
1068 
1069 typedef char *filename3;
1070 
1071 typedef char *nfspath3;
1072 
1073 #define nfs3nametoolong ((char *)-1)
1074 
1075 typedef uint64 fileid3;
1076 
1077 typedef uint64 cookie3;
1078 
1079 typedef uint32 uid3;
1080 
1081 typedef uint32 gid3;
1082 
1083 typedef uint64 size3;
1084 
1085 typedef uint64 offset3;
1086 
1087 typedef uint32 mode3;
1088 
1089 typedef uint32 count3;
1090 
1091 /*
1092  * These three are really opaque arrays, but we treat them as
1093  * uint64 for efficiency sake
1094  */
1095 typedef uint64 cookieverf3;
1096 
1097 typedef uint64 createverf3;
1098 
1099 typedef uint64 writeverf3;
1100 
1101 typedef struct nfs_fh3 {
1102         uint_t fh3_length;
1103         union nfs_fh3_u {
1104                 struct nfs_fh3_i {
1105                         fhandle3_t fh3_i;
1106                 } nfs_fh3_i;
1107                 char data[NFS3_FHSIZE];
1108         } fh3_u;
1109         uint_t fh3_flags;
1110 } nfs_fh3;
1111 #define fh3_fsid        fh3_u.nfs_fh3_i.fh3_i._fh3_fsid
1112 #define fh3_len         fh3_u.nfs_fh3_i.fh3_i._fh3_len
1113 #define fh3_data        fh3_u.nfs_fh3_i.fh3_i._fh3_data
1114 #define fh3_xlen        fh3_u.nfs_fh3_i.fh3_i._fh3_xlen
1115 #define fh3_xdata       fh3_u.nfs_fh3_i.fh3_i._fh3_xdata
1116 #define FH3TOFIDP(fh)   ((fid_t *)&((fh)->fh3_len))
1117 #define FH3TOXFIDP(fh)  ((fid_t *)&((fh)->fh3_xlen))
1118 
1119 /*
1120  * nfs_fh3.fh3_flags values
1121  */
1122 #define FH_WEBNFS       0x1     /* fh is WebNFS overloaded - see makefh3_ol() */
1123 
1124 /*
1125  * Two elements were added to the
1126  * diropargs3 structure for performance (xdr-inlining).
1127  * They are not included as part of the args
1128  * that are encoded or decoded:
1129  * dirp - ptr to the nfs_fh3
1130  * flag indicating when to free the name that was
1131  * allocated during decode.
1132  */
1133 struct diropargs3 {
1134         nfs_fh3 *dirp;
1135         nfs_fh3 dir;
1136         filename3 name;
1137         int flags;
1138 };
1139 typedef struct diropargs3 diropargs3;
1140 
1141 struct nfstime3 {
1142         uint32 seconds;
1143         uint32 nseconds;
1144 };
1145 typedef struct nfstime3 nfstime3;
1146 
1147 struct specdata3 {
1148         uint32 specdata1;
1149         uint32 specdata2;
1150 };
1151 typedef struct specdata3 specdata3;
1152 
1153 enum nfsstat3 {
1154         NFS3_OK = 0,
1155         NFS3ERR_PERM = 1,
1156         NFS3ERR_NOENT = 2,
1157         NFS3ERR_IO = 5,
1158         NFS3ERR_NXIO = 6,
1159         NFS3ERR_ACCES = 13,
1160         NFS3ERR_EXIST = 17,
1161         NFS3ERR_XDEV = 18,
1162         NFS3ERR_NODEV = 19,
1163         NFS3ERR_NOTDIR = 20,
1164         NFS3ERR_ISDIR = 21,
1165         NFS3ERR_INVAL = 22,
1166         NFS3ERR_FBIG = 27,
1167         NFS3ERR_NOSPC = 28,
1168         NFS3ERR_ROFS = 30,
1169         NFS3ERR_MLINK = 31,
1170         NFS3ERR_NAMETOOLONG = 63,
1171         NFS3ERR_NOTEMPTY = 66,
1172         NFS3ERR_DQUOT = 69,
1173         NFS3ERR_STALE = 70,
1174         NFS3ERR_REMOTE = 71,
1175         NFS3ERR_BADHANDLE = 10001,
1176         NFS3ERR_NOT_SYNC = 10002,
1177         NFS3ERR_BAD_COOKIE = 10003,
1178         NFS3ERR_NOTSUPP = 10004,
1179         NFS3ERR_TOOSMALL = 10005,
1180         NFS3ERR_SERVERFAULT = 10006,
1181         NFS3ERR_BADTYPE = 10007,
1182         NFS3ERR_JUKEBOX = 10008
1183 };
1184 typedef enum nfsstat3 nfsstat3;
1185 
1186 enum ftype3 {
1187         NF3REG = 1,
1188         NF3DIR = 2,
1189         NF3BLK = 3,
1190         NF3CHR = 4,
1191         NF3LNK = 5,
1192         NF3SOCK = 6,
1193         NF3FIFO = 7
1194 };
1195 typedef enum ftype3 ftype3;
1196 
1197 struct fattr3 {
1198         ftype3 type;
1199         mode3 mode;
1200         uint32 nlink;
1201         uid3 uid;
1202         gid3 gid;
1203         size3 size;
1204         size3 used;
1205         specdata3 rdev;
1206         uint64 fsid;
1207         fileid3 fileid;
1208         nfstime3 atime;
1209         nfstime3 mtime;
1210         nfstime3 ctime;
1211 };
1212 typedef struct fattr3 fattr3;
1213 
1214 #define NFS3_SIZEOF_FATTR3      (21)
1215 
1216 #ifdef _KERNEL
1217 struct fattr3_res {
1218         nfsstat3 status;
1219         vattr_t *vap;
1220         vnode_t *vp;
1221 };
1222 typedef struct fattr3_res fattr3_res;
1223 #endif /* _KERNEL */
1224 
1225 struct post_op_attr {
1226         bool_t attributes;
1227         fattr3 attr;
1228 };
1229 typedef struct post_op_attr post_op_attr;
1230 
1231 #ifdef _KERNEL
1232 struct post_op_vattr {
1233         bool_t          attributes;
1234         fattr3_res      fres;
1235 };
1236 typedef struct post_op_vattr post_op_vattr;
1237 #endif /* _KERNEL */
1238 
1239 struct wcc_attr {
1240         size3 size;
1241         nfstime3 mtime;
1242         nfstime3 ctime;
1243 };
1244 typedef struct wcc_attr wcc_attr;
1245 
1246 struct pre_op_attr {
1247         bool_t attributes;
1248         wcc_attr attr;
1249 };
1250 typedef struct pre_op_attr pre_op_attr;
1251 
1252 struct wcc_data {
1253         pre_op_attr before;
1254         post_op_attr after;
1255 };
1256 typedef struct wcc_data wcc_data;
1257 
1258 struct post_op_fh3 {
1259         bool_t handle_follows;
1260         nfs_fh3 handle;
1261 };
1262 typedef struct post_op_fh3 post_op_fh3;
1263 
1264 enum time_how {
1265         DONT_CHANGE = 0,
1266         SET_TO_SERVER_TIME = 1,
1267         SET_TO_CLIENT_TIME = 2
1268 };
1269 typedef enum time_how time_how;
1270 
1271 struct set_mode3 {
1272         bool_t set_it;
1273         mode3 mode;
1274 };
1275 typedef struct set_mode3 set_mode3;
1276 
1277 struct set_uid3 {
1278         bool_t set_it;
1279         uid3 uid;
1280 };
1281 typedef struct set_uid3 set_uid3;
1282 
1283 struct set_gid3 {
1284         bool_t set_it;
1285         gid3 gid;
1286 };
1287 typedef struct set_gid3 set_gid3;
1288 
1289 struct set_size3 {
1290         bool_t set_it;
1291         size3 size;
1292 };
1293 typedef struct set_size3 set_size3;
1294 
1295 struct set_atime {
1296         time_how set_it;
1297         nfstime3 atime;
1298 };
1299 typedef struct set_atime set_atime;
1300 
1301 struct set_mtime {
1302         time_how set_it;
1303         nfstime3 mtime;
1304 };
1305 typedef struct set_mtime set_mtime;
1306 
1307 struct sattr3 {
1308         set_mode3 mode;
1309         set_uid3 uid;
1310         set_gid3 gid;
1311         set_size3 size;
1312         set_atime atime;
1313         set_mtime mtime;
1314 };
1315 typedef struct sattr3 sattr3;
1316 
1317 /*
1318  * A couple of defines to make resok and resfail look like the
1319  * correct things in a response type independent manner.
1320  */
1321 #define resok   res_u.ok
1322 #define resfail res_u.fail
1323 
1324 struct GETATTR3args {
1325         nfs_fh3 object;
1326 };
1327 typedef struct GETATTR3args GETATTR3args;
1328 
1329 struct GETATTR3resok {
1330         fattr3 obj_attributes;
1331 };
1332 typedef struct GETATTR3resok GETATTR3resok;
1333 
1334 struct GETATTR3res {
1335         nfsstat3 status;
1336         union {
1337                 GETATTR3resok ok;
1338         } res_u;
1339 };
1340 typedef struct GETATTR3res GETATTR3res;
1341 
1342 #ifdef _KERNEL
1343 struct GETATTR3vres {
1344         nfsstat3 status;
1345         fattr3_res fres;
1346 };
1347 typedef struct GETATTR3vres GETATTR3vres;
1348 #endif /* _KERNEL */
1349 
1350 struct sattrguard3 {
1351         bool_t check;
1352         nfstime3 obj_ctime;
1353 };
1354 typedef struct sattrguard3 sattrguard3;
1355 
1356 struct SETATTR3args {
1357         nfs_fh3 object;
1358         sattr3 new_attributes;
1359         sattrguard3 guard;
1360 };
1361 typedef struct SETATTR3args SETATTR3args;
1362 
1363 struct SETATTR3resok {
1364         wcc_data obj_wcc;
1365 };
1366 typedef struct SETATTR3resok SETATTR3resok;
1367 
1368 struct SETATTR3resfail {
1369         wcc_data obj_wcc;
1370 };
1371 typedef struct SETATTR3resfail SETATTR3resfail;
1372 
1373 struct SETATTR3res {
1374         nfsstat3 status;
1375         union {
1376                 SETATTR3resok ok;
1377                 SETATTR3resfail fail;
1378         } res_u;
1379 };
1380 typedef struct SETATTR3res SETATTR3res;
1381 
1382 struct LOOKUP3args {
1383         diropargs3 what;
1384 };
1385 typedef struct LOOKUP3args LOOKUP3args;
1386 
1387 struct LOOKUP3resok {
1388         nfs_fh3 object;
1389         post_op_attr obj_attributes;
1390         post_op_attr dir_attributes;
1391 };
1392 typedef struct LOOKUP3resok LOOKUP3resok;
1393 
1394 struct LOOKUP3resfail {
1395         post_op_attr dir_attributes;
1396 };
1397 typedef struct LOOKUP3resfail LOOKUP3resfail;
1398 
1399 struct LOOKUP3res {
1400         nfsstat3 status;
1401         union {
1402                 LOOKUP3resok ok;
1403                 LOOKUP3resfail fail;
1404         } res_u;
1405 };
1406 typedef struct LOOKUP3res LOOKUP3res;
1407 
1408 #ifdef _KERNEL
1409 struct LOOKUP3vres {
1410         nfsstat3 status;
1411         nfs_fh3 object;
1412         post_op_vattr dir_attributes;
1413         post_op_vattr obj_attributes;
1414 };
1415 typedef struct LOOKUP3vres LOOKUP3vres;
1416 #endif /* _KERNEL */
1417 
1418 struct ACCESS3args {
1419         nfs_fh3 object;
1420         uint32 access;
1421 };
1422 typedef struct ACCESS3args ACCESS3args;
1423 #define ACCESS3_READ 0x1
1424 #define ACCESS3_LOOKUP 0x2
1425 #define ACCESS3_MODIFY 0x4
1426 #define ACCESS3_EXTEND 0x8
1427 #define ACCESS3_DELETE 0x10
1428 #define ACCESS3_EXECUTE 0x20
1429 
1430 struct ACCESS3resok {
1431         post_op_attr obj_attributes;
1432         uint32 access;
1433 };
1434 typedef struct ACCESS3resok ACCESS3resok;
1435 
1436 struct ACCESS3resfail {
1437         post_op_attr obj_attributes;
1438 };
1439 typedef struct ACCESS3resfail ACCESS3resfail;
1440 
1441 struct ACCESS3res {
1442         nfsstat3 status;
1443         union {
1444                 ACCESS3resok ok;
1445                 ACCESS3resfail fail;
1446         } res_u;
1447 };
1448 typedef struct ACCESS3res ACCESS3res;
1449 
1450 struct READLINK3args {
1451         nfs_fh3 symlink;
1452 };
1453 typedef struct READLINK3args READLINK3args;
1454 
1455 struct READLINK3resok {
1456         post_op_attr symlink_attributes;
1457         nfspath3 data;
1458 };
1459 typedef struct READLINK3resok READLINK3resok;
1460 
1461 struct READLINK3resfail {
1462         post_op_attr symlink_attributes;
1463 };
1464 typedef struct READLINK3resfail READLINK3resfail;
1465 
1466 struct READLINK3res {
1467         nfsstat3 status;
1468         union {
1469                 READLINK3resok ok;
1470                 READLINK3resfail fail;
1471         } res_u;
1472 };
1473 typedef struct READLINK3res READLINK3res;
1474 
1475 struct READ3args {
1476         nfs_fh3 file;
1477         offset3 offset;
1478         count3 count;
1479 #ifdef _KERNEL
1480         /* for read using rdma */
1481         char *res_data_val_alt;
1482         struct uio *res_uiop;
1483         struct clist *wlist;
1484         CONN *conn;
1485 #endif
1486 };
1487 typedef struct READ3args READ3args;
1488 
1489 struct READ3resok {
1490         post_op_attr file_attributes;
1491         count3 count;
1492         bool_t eof;
1493         struct {
1494                 uint_t data_len;
1495                 char *data_val;
1496                 mblk_t *mp;
1497         } data;
1498         uint_t size;
1499 #ifdef _KERNEL
1500         uint_t wlist_len;
1501         struct clist *wlist;
1502         frtn_t zcopy;
1503 #endif
1504 };
1505 typedef struct READ3resok READ3resok;
1506 
1507 struct READ3resfail {
1508         post_op_attr file_attributes;
1509 };
1510 typedef struct READ3resfail READ3resfail;
1511 
1512 struct READ3res {
1513         nfsstat3 status;
1514         union {
1515                 READ3resok ok;
1516                 READ3resfail fail;
1517         } res_u;
1518 };
1519 typedef struct READ3res READ3res;
1520 
1521 #ifdef _KERNEL
1522 /*
1523  * READ3 reply that directly decodes fattr3 directly into vattr
1524  */
1525 struct READ3vres {
1526         nfsstat3 status;
1527         struct post_op_vattr pov;
1528         count3 count;
1529         bool_t eof;
1530         struct {
1531                 uint_t data_len;
1532                 char *data_val;
1533         } data;
1534         uint_t size;
1535 
1536         uint_t wlist_len;
1537         struct clist *wlist;
1538 };
1539 typedef struct READ3vres READ3vres;
1540 #endif /* _KERNEL */
1541 
1542 /*
1543  * READ3 reply that uiomoves data directly into a struct uio
1544  * ignores any attributes returned
1545  */
1546 struct READ3uiores {
1547         nfsstat3 status;
1548         count3 count;
1549         bool_t eof;
1550         struct uio *uiop;
1551         uint_t size;            /* maximum reply size */
1552 #ifdef _KERNEL
1553         uint_t wlist_len;
1554         struct clist *wlist;
1555 #endif
1556 };
1557 typedef struct READ3uiores READ3uiores;
1558 
1559 enum stable_how {
1560         UNSTABLE = 0,
1561         DATA_SYNC = 1,
1562         FILE_SYNC = 2
1563 };
1564 typedef enum stable_how stable_how;
1565 
1566 struct WRITE3args {
1567         nfs_fh3 file;
1568         offset3 offset;
1569         count3 count;
1570         stable_how stable;
1571         struct {
1572                 uint_t data_len;
1573                 char *data_val;
1574         } data;
1575         mblk_t *mblk;
1576 #ifdef _KERNEL
1577         struct clist *rlist;
1578         CONN *conn;
1579 #endif
1580 };
1581 typedef struct WRITE3args WRITE3args;
1582 
1583 struct WRITE3resok {
1584         wcc_data file_wcc;
1585         count3 count;
1586         stable_how committed;
1587         writeverf3 verf;
1588 };
1589 typedef struct WRITE3resok WRITE3resok;
1590 
1591 struct WRITE3resfail {
1592         wcc_data file_wcc;
1593 };
1594 typedef struct WRITE3resfail WRITE3resfail;
1595 
1596 struct WRITE3res {
1597         nfsstat3 status;
1598         union {
1599                 WRITE3resok ok;
1600                 WRITE3resfail fail;
1601         } res_u;
1602 };
1603 typedef struct WRITE3res WRITE3res;
1604 
1605 enum createmode3 {
1606         UNCHECKED = 0,
1607         GUARDED = 1,
1608         EXCLUSIVE = 2
1609 };
1610 typedef enum createmode3 createmode3;
1611 
1612 struct createhow3 {
1613         createmode3 mode;
1614         union {
1615                 sattr3 obj_attributes;
1616                 createverf3 verf;
1617         } createhow3_u;
1618 };
1619 typedef struct createhow3 createhow3;
1620 
1621 struct CREATE3args {
1622         diropargs3 where;
1623         createhow3 how;
1624 };
1625 typedef struct CREATE3args CREATE3args;
1626 
1627 struct CREATE3resok {
1628         post_op_fh3 obj;
1629         post_op_attr obj_attributes;
1630         wcc_data dir_wcc;
1631 };
1632 typedef struct CREATE3resok CREATE3resok;
1633 
1634 struct CREATE3resfail {
1635         wcc_data dir_wcc;
1636 };
1637 typedef struct CREATE3resfail CREATE3resfail;
1638 
1639 struct CREATE3res {
1640         nfsstat3 status;
1641         union {
1642                 CREATE3resok ok;
1643                 CREATE3resfail fail;
1644         } res_u;
1645 };
1646 typedef struct CREATE3res CREATE3res;
1647 
1648 struct MKDIR3args {
1649         diropargs3 where;
1650         sattr3 attributes;
1651 };
1652 typedef struct MKDIR3args MKDIR3args;
1653 
1654 struct MKDIR3resok {
1655         post_op_fh3 obj;
1656         post_op_attr obj_attributes;
1657         wcc_data dir_wcc;
1658 };
1659 typedef struct MKDIR3resok MKDIR3resok;
1660 
1661 struct MKDIR3resfail {
1662         wcc_data dir_wcc;
1663 };
1664 typedef struct MKDIR3resfail MKDIR3resfail;
1665 
1666 struct MKDIR3res {
1667         nfsstat3 status;
1668         union {
1669                 MKDIR3resok ok;
1670                 MKDIR3resfail fail;
1671         } res_u;
1672 };
1673 typedef struct MKDIR3res MKDIR3res;
1674 
1675 struct symlinkdata3 {
1676         sattr3 symlink_attributes;
1677         nfspath3 symlink_data;
1678 };
1679 typedef struct symlinkdata3 symlinkdata3;
1680 
1681 struct SYMLINK3args {
1682         diropargs3 where;
1683         symlinkdata3 symlink;
1684 };
1685 typedef struct SYMLINK3args SYMLINK3args;
1686 
1687 struct SYMLINK3resok {
1688         post_op_fh3 obj;
1689         post_op_attr obj_attributes;
1690         wcc_data dir_wcc;
1691 };
1692 typedef struct SYMLINK3resok SYMLINK3resok;
1693 
1694 struct SYMLINK3resfail {
1695         wcc_data dir_wcc;
1696 };
1697 typedef struct SYMLINK3resfail SYMLINK3resfail;
1698 
1699 struct SYMLINK3res {
1700         nfsstat3 status;
1701         union {
1702                 SYMLINK3resok ok;
1703                 SYMLINK3resfail fail;
1704         } res_u;
1705 };
1706 typedef struct SYMLINK3res SYMLINK3res;
1707 
1708 struct devicedata3 {
1709         sattr3 dev_attributes;
1710         specdata3 spec;
1711 };
1712 typedef struct devicedata3 devicedata3;
1713 
1714 struct mknoddata3 {
1715         ftype3 type;
1716         union {
1717                 devicedata3 device;
1718                 sattr3 pipe_attributes;
1719         } mknoddata3_u;
1720 };
1721 typedef struct mknoddata3 mknoddata3;
1722 
1723 struct MKNOD3args {
1724         diropargs3 where;
1725         mknoddata3 what;
1726 };
1727 typedef struct MKNOD3args MKNOD3args;
1728 
1729 struct MKNOD3resok {
1730         post_op_fh3 obj;
1731         post_op_attr obj_attributes;
1732         wcc_data dir_wcc;
1733 };
1734 typedef struct MKNOD3resok MKNOD3resok;
1735 
1736 struct MKNOD3resfail {
1737         wcc_data dir_wcc;
1738 };
1739 typedef struct MKNOD3resfail MKNOD3resfail;
1740 
1741 struct MKNOD3res {
1742         nfsstat3 status;
1743         union {
1744                 MKNOD3resok ok;
1745                 MKNOD3resfail fail;
1746         } res_u;
1747 };
1748 typedef struct MKNOD3res MKNOD3res;
1749 
1750 struct REMOVE3args {
1751         diropargs3 object;
1752 };
1753 typedef struct REMOVE3args REMOVE3args;
1754 
1755 struct REMOVE3resok {
1756         wcc_data dir_wcc;
1757 };
1758 typedef struct REMOVE3resok REMOVE3resok;
1759 
1760 struct REMOVE3resfail {
1761         wcc_data dir_wcc;
1762 };
1763 typedef struct REMOVE3resfail REMOVE3resfail;
1764 
1765 struct REMOVE3res {
1766         nfsstat3 status;
1767         union {
1768                 REMOVE3resok ok;
1769                 REMOVE3resfail fail;
1770         } res_u;
1771 };
1772 typedef struct REMOVE3res REMOVE3res;
1773 
1774 struct RMDIR3args {
1775         diropargs3 object;
1776 };
1777 typedef struct RMDIR3args RMDIR3args;
1778 
1779 struct RMDIR3resok {
1780         wcc_data dir_wcc;
1781 };
1782 typedef struct RMDIR3resok RMDIR3resok;
1783 
1784 struct RMDIR3resfail {
1785         wcc_data dir_wcc;
1786 };
1787 typedef struct RMDIR3resfail RMDIR3resfail;
1788 
1789 struct RMDIR3res {
1790         nfsstat3 status;
1791         union {
1792                 RMDIR3resok ok;
1793                 RMDIR3resfail fail;
1794         } res_u;
1795 };
1796 typedef struct RMDIR3res RMDIR3res;
1797 
1798 struct RENAME3args {
1799         diropargs3 from;
1800         diropargs3 to;
1801 };
1802 typedef struct RENAME3args RENAME3args;
1803 
1804 struct RENAME3resok {
1805         wcc_data fromdir_wcc;
1806         wcc_data todir_wcc;
1807 };
1808 typedef struct RENAME3resok RENAME3resok;
1809 
1810 struct RENAME3resfail {
1811         wcc_data fromdir_wcc;
1812         wcc_data todir_wcc;
1813 };
1814 typedef struct RENAME3resfail RENAME3resfail;
1815 
1816 struct RENAME3res {
1817         nfsstat3 status;
1818         union {
1819                 RENAME3resok ok;
1820                 RENAME3resfail fail;
1821         } res_u;
1822 };
1823 typedef struct RENAME3res RENAME3res;
1824 
1825 struct LINK3args {
1826         nfs_fh3 file;
1827         diropargs3 link;
1828 };
1829 typedef struct LINK3args LINK3args;
1830 
1831 struct LINK3resok {
1832         post_op_attr file_attributes;
1833         wcc_data linkdir_wcc;
1834 };
1835 typedef struct LINK3resok LINK3resok;
1836 
1837 struct LINK3resfail {
1838         post_op_attr file_attributes;
1839         wcc_data linkdir_wcc;
1840 };
1841 typedef struct LINK3resfail LINK3resfail;
1842 
1843 struct LINK3res {
1844         nfsstat3 status;
1845         union {
1846                 LINK3resok ok;
1847                 LINK3resfail fail;
1848         } res_u;
1849 };
1850 typedef struct LINK3res LINK3res;
1851 
1852 struct READDIR3args {
1853         nfs_fh3 dir;
1854         cookie3 cookie;
1855         cookieverf3 cookieverf;
1856         count3 count;
1857 };
1858 typedef struct READDIR3args READDIR3args;
1859 
1860 struct entry3 {
1861         fileid3 fileid;
1862         filename3 name;
1863         cookie3 cookie;
1864         struct entry3 *nextentry;
1865 };
1866 typedef struct entry3 entry3;
1867 
1868 struct dirlist3 {
1869         entry3 *entries;
1870         bool_t eof;
1871 };
1872 typedef struct dirlist3 dirlist3;
1873 
1874 struct READDIR3resok {
1875         post_op_attr dir_attributes;
1876         cookieverf3 cookieverf;
1877         dirlist3 reply;
1878         uint_t size;
1879         uint_t count;
1880         uint_t freecount;
1881         cookie3 cookie;
1882 };
1883 typedef struct READDIR3resok READDIR3resok;
1884 
1885 struct READDIR3resfail {
1886         post_op_attr dir_attributes;
1887 };
1888 typedef struct READDIR3resfail READDIR3resfail;
1889 
1890 struct READDIR3res {
1891         nfsstat3 status;
1892         union {
1893                 READDIR3resok ok;
1894                 READDIR3resfail fail;
1895         } res_u;
1896 };
1897 typedef struct READDIR3res READDIR3res;
1898 
1899 #ifdef _KERNEL
1900 struct READDIR3vres {
1901         nfsstat3 status;
1902         post_op_vattr dir_attributes;
1903         cookieverf3 cookieverf;
1904         dirent64_t *entries;                    /* decoded dirent64s */
1905         uint_t size;                            /* actual size of entries */
1906         uint_t entries_size;                    /* max size of entries */
1907         off64_t loff;                           /* last offset/cookie */
1908         bool_t eof;                             /* End of directory */
1909 };
1910 typedef struct READDIR3vres READDIR3vres;
1911 #endif /* _KERNEL */
1912 
1913 struct READDIRPLUS3args {
1914         nfs_fh3 dir;
1915         cookie3 cookie;
1916         cookieverf3 cookieverf;
1917         count3 dircount;
1918         count3 maxcount;
1919 };
1920 typedef struct READDIRPLUS3args READDIRPLUS3args;
1921 
1922 struct entryplus3 {
1923         fileid3 fileid;
1924         filename3 name;
1925         cookie3 cookie;
1926         post_op_attr name_attributes;
1927         post_op_fh3 name_handle;
1928         struct entryplus3 *nextentry;
1929 };
1930 typedef struct entryplus3 entryplus3;
1931 
1932 struct dirlistplus3 {
1933         entryplus3 *entries;
1934         bool_t eof;
1935 };
1936 typedef struct dirlistplus3 dirlistplus3;
1937 
1938 struct entryplus3_info {
1939         post_op_attr attr;
1940         post_op_fh3 fh;
1941         uint_t namelen;
1942 };
1943 typedef struct entryplus3_info entryplus3_info;
1944 
1945 struct READDIRPLUS3resok {
1946         post_op_attr dir_attributes;
1947         cookieverf3 cookieverf;
1948         dirlistplus3 reply;
1949         uint_t size;
1950         uint_t count;
1951         uint_t maxcount;
1952         entryplus3_info *infop;
1953 };
1954 typedef struct READDIRPLUS3resok READDIRPLUS3resok;
1955 
1956 struct READDIRPLUS3resfail {
1957         post_op_attr dir_attributes;
1958 };
1959 typedef struct READDIRPLUS3resfail READDIRPLUS3resfail;
1960 
1961 struct READDIRPLUS3res {
1962         nfsstat3 status;
1963         union {
1964                 READDIRPLUS3resok ok;
1965                 READDIRPLUS3resfail fail;
1966         } res_u;
1967 };
1968 typedef struct READDIRPLUS3res READDIRPLUS3res;
1969 
1970 #ifdef _KERNEL
1971 struct entryplus3_va_fh {
1972         int va_valid;
1973         int fh_valid;
1974         vattr_t va;
1975         nfs_fh3 fh;
1976         char *d_name;           /* back pointer into entries */
1977 };
1978 
1979 struct READDIRPLUS3vres {
1980         nfsstat3 status;
1981         post_op_vattr dir_attributes;
1982         cookieverf3 cookieverf;
1983         dirent64_t *entries;                    /* decoded dirent64s */
1984         uint_t size;                            /* actual size of entries */
1985         uint_t entries_size;                    /* max size of entries */
1986         bool_t eof;                             /* End of directory */
1987         off64_t loff;                           /* last offset/cookie */
1988         cred_t *credentials;                    /* caller's credentials */
1989         hrtime_t time;                          /* time of READDIRPLUS call */
1990 };
1991 typedef struct READDIRPLUS3vres READDIRPLUS3vres;
1992 #endif /* _KERNEL */
1993 
1994 struct FSSTAT3args {
1995         nfs_fh3 fsroot;
1996 };
1997 typedef struct FSSTAT3args FSSTAT3args;
1998 
1999 struct FSSTAT3resok {
2000         post_op_attr obj_attributes;
2001         size3 tbytes;
2002         size3 fbytes;
2003         size3 abytes;
2004         size3 tfiles;
2005         size3 ffiles;
2006         size3 afiles;
2007         uint32 invarsec;
2008 };
2009 typedef struct FSSTAT3resok FSSTAT3resok;
2010 
2011 struct FSSTAT3resfail {
2012         post_op_attr obj_attributes;
2013 };
2014 typedef struct FSSTAT3resfail FSSTAT3resfail;
2015 
2016 struct FSSTAT3res {
2017         nfsstat3 status;
2018         union {
2019                 FSSTAT3resok ok;
2020                 FSSTAT3resfail fail;
2021         } res_u;
2022 };
2023 typedef struct FSSTAT3res FSSTAT3res;
2024 
2025 struct FSINFO3args {
2026         nfs_fh3 fsroot;
2027 };
2028 typedef struct FSINFO3args FSINFO3args;
2029 
2030 struct FSINFO3resok {
2031         post_op_attr obj_attributes;
2032         uint32 rtmax;
2033         uint32 rtpref;
2034         uint32 rtmult;
2035         uint32 wtmax;
2036         uint32 wtpref;
2037         uint32 wtmult;
2038         uint32 dtpref;
2039         size3 maxfilesize;
2040         nfstime3 time_delta;
2041         uint32 properties;
2042 };
2043 typedef struct FSINFO3resok FSINFO3resok;
2044 
2045 struct FSINFO3resfail {
2046         post_op_attr obj_attributes;
2047 };
2048 typedef struct FSINFO3resfail FSINFO3resfail;
2049 #define FSF3_LINK 0x1
2050 #define FSF3_SYMLINK 0x2
2051 #define FSF3_HOMOGENEOUS 0x8
2052 #define FSF3_CANSETTIME 0x10
2053 
2054 struct FSINFO3res {
2055         nfsstat3 status;
2056         union {
2057                 FSINFO3resok ok;
2058                 FSINFO3resfail fail;
2059         } res_u;
2060 };
2061 typedef struct FSINFO3res FSINFO3res;
2062 
2063 struct PATHCONF3args {
2064         nfs_fh3 object;
2065 };
2066 typedef struct PATHCONF3args PATHCONF3args;
2067 
2068 struct nfs3_pathconf_info {
2069         uint32 link_max;
2070         uint32 name_max;
2071         bool_t no_trunc;
2072         bool_t chown_restricted;
2073         bool_t case_insensitive;
2074         bool_t case_preserving;
2075 };
2076 typedef struct nfs3_pathconf_info nfs3_pathconf_info;
2077 
2078 struct PATHCONF3resok {
2079         post_op_attr obj_attributes;
2080         nfs3_pathconf_info info;
2081 };
2082 typedef struct PATHCONF3resok PATHCONF3resok;
2083 
2084 struct PATHCONF3resfail {
2085         post_op_attr obj_attributes;
2086 };
2087 typedef struct PATHCONF3resfail PATHCONF3resfail;
2088 
2089 struct PATHCONF3res {
2090         nfsstat3 status;
2091         union {
2092                 PATHCONF3resok ok;
2093                 PATHCONF3resfail fail;
2094         } res_u;
2095 };
2096 typedef struct PATHCONF3res PATHCONF3res;
2097 
2098 struct COMMIT3args {
2099         nfs_fh3 file;
2100         offset3 offset;
2101         count3 count;
2102 };
2103 typedef struct COMMIT3args COMMIT3args;
2104 
2105 struct COMMIT3resok {
2106         wcc_data file_wcc;
2107         writeverf3 verf;
2108 };
2109 typedef struct COMMIT3resok COMMIT3resok;
2110 
2111 struct COMMIT3resfail {
2112         wcc_data file_wcc;
2113 };
2114 typedef struct COMMIT3resfail COMMIT3resfail;
2115 
2116 struct COMMIT3res {
2117         nfsstat3 status;
2118         union {
2119                 COMMIT3resok ok;
2120                 COMMIT3resfail fail;
2121         } res_u;
2122 };
2123 typedef struct COMMIT3res COMMIT3res;
2124 
2125 #define NFS3_PROGRAM ((rpcprog_t)100003)
2126 #define NFS_V3 ((rpcvers_t)3)
2127 #define NFSPROC3_NULL ((rpcproc_t)0)
2128 #define NFSPROC3_GETATTR ((rpcproc_t)1)
2129 #define NFSPROC3_SETATTR ((rpcproc_t)2)
2130 #define NFSPROC3_LOOKUP ((rpcproc_t)3)
2131 #define NFSPROC3_ACCESS ((rpcproc_t)4)
2132 #define NFSPROC3_READLINK ((rpcproc_t)5)
2133 #define NFSPROC3_READ ((rpcproc_t)6)
2134 #define NFSPROC3_WRITE ((rpcproc_t)7)
2135 #define NFSPROC3_CREATE ((rpcproc_t)8)
2136 #define NFSPROC3_MKDIR ((rpcproc_t)9)
2137 #define NFSPROC3_SYMLINK ((rpcproc_t)10)
2138 #define NFSPROC3_MKNOD ((rpcproc_t)11)
2139 #define NFSPROC3_REMOVE ((rpcproc_t)12)
2140 #define NFSPROC3_RMDIR ((rpcproc_t)13)
2141 #define NFSPROC3_RENAME ((rpcproc_t)14)
2142 #define NFSPROC3_LINK ((rpcproc_t)15)
2143 #define NFSPROC3_READDIR ((rpcproc_t)16)
2144 #define NFSPROC3_READDIRPLUS ((rpcproc_t)17)
2145 #define NFSPROC3_FSSTAT ((rpcproc_t)18)
2146 #define NFSPROC3_FSINFO ((rpcproc_t)19)
2147 #define NFSPROC3_PATHCONF ((rpcproc_t)20)
2148 #define NFSPROC3_COMMIT ((rpcproc_t)21)
2149 
2150 #ifndef _KERNEL
2151 extern void             *nfsproc3_null_3();
2152 extern GETATTR3res      *nfsproc3_getattr_3();
2153 extern SETATTR3res      *nfsproc3_setattr_3();
2154 extern LOOKUP3res       *nfsproc3_lookup_3();
2155 extern ACCESS3res       *nfsproc3_access_3();
2156 extern READLINK3res     *nfsproc3_readlink_3();
2157 extern READ3res *nfsproc3_read_3();
2158 extern WRITE3res        *nfsproc3_write_3();
2159 extern CREATE3res       *nfsproc3_create_3();
2160 extern MKDIR3res        *nfsproc3_mkdir_3();
2161 extern SYMLINK3res      *nfsproc3_symlink_3();
2162 extern MKNOD3res        *nfsproc3_mknod_3();
2163 extern REMOVE3res       *nfsproc3_remove_3();
2164 extern RMDIR3res        *nfsproc3_rmdir_3();
2165 extern RENAME3res       *nfsproc3_rename_3();
2166 extern LINK3res *nfsproc3_link_3();
2167 extern READDIR3res      *nfsproc3_readdir_3();
2168 extern READDIRPLUS3res  *nfsproc3_readdirplus_3();
2169 extern FSSTAT3res       *nfsproc3_fsstat_3();
2170 extern FSINFO3res       *nfsproc3_fsinfo_3();
2171 extern PATHCONF3res     *nfsproc3_pathconf_3();
2172 extern COMMIT3res       *nfsproc3_commit_3();
2173 #endif  /* !_KERNEL */
2174 
2175 #ifdef _KERNEL
2176 /* the NFS Version 3 XDR functions */
2177 
2178 extern bool_t xdr_nfs_fh3(XDR *, nfs_fh3 *);
2179 extern bool_t xdr_nfslog_nfs_fh3(XDR *, nfs_fh3 *);
2180 extern bool_t xdr_nfs_fh3_server(XDR *, nfs_fh3 *);
2181 extern bool_t xdr_diropargs3(XDR *, diropargs3 *);
2182 extern bool_t xdr_post_op_attr(XDR *, post_op_attr *);
2183 extern bool_t xdr_post_op_fh3(XDR *, post_op_fh3 *);
2184 extern bool_t xdr_GETATTR3res(XDR *, GETATTR3res *);
2185 extern bool_t xdr_GETATTR3vres(XDR *, GETATTR3vres *);
2186 extern bool_t xdr_SETATTR3args(XDR *, SETATTR3args *);
2187 extern bool_t xdr_SETATTR3res(XDR *, SETATTR3res *);
2188 extern bool_t xdr_LOOKUP3res(XDR *, LOOKUP3res *);
2189 extern bool_t xdr_LOOKUP3vres(XDR *, LOOKUP3vres *);
2190 extern bool_t xdr_ACCESS3args(XDR *, ACCESS3args *);
2191 extern bool_t xdr_ACCESS3res(XDR *, ACCESS3res *);
2192 extern bool_t xdr_READLINK3args(XDR *, READLINK3args *);
2193 extern bool_t xdr_READLINK3res(XDR *, READLINK3res *);
2194 extern bool_t xdr_READ3args(XDR *, READ3args *);
2195 extern bool_t xdr_READ3res(XDR *, READ3res *);
2196 extern bool_t xdr_READ3vres(XDR *, READ3vres *);
2197 extern bool_t xdr_READ3uiores(XDR *, READ3uiores *);
2198 extern bool_t xdr_WRITE3args(XDR *, WRITE3args *);
2199 extern bool_t xdr_WRITE3res(XDR *, WRITE3res *);
2200 extern bool_t xdr_CREATE3args(XDR *, CREATE3args *);
2201 extern bool_t xdr_CREATE3res(XDR *, CREATE3res *);
2202 extern bool_t xdr_MKDIR3args(XDR *, MKDIR3args *);
2203 extern bool_t xdr_MKDIR3res(XDR *, MKDIR3res *);
2204 extern bool_t xdr_SYMLINK3args(XDR *, SYMLINK3args *);
2205 extern bool_t xdr_SYMLINK3res(XDR *, SYMLINK3res *);
2206 extern bool_t xdr_MKNOD3args(XDR *, MKNOD3args *);
2207 extern bool_t xdr_MKNOD3res(XDR *, MKNOD3res *);
2208 extern bool_t xdr_REMOVE3res(XDR *, REMOVE3res *);
2209 extern bool_t xdr_RMDIR3resfail(XDR *, RMDIR3resfail *);
2210 extern bool_t xdr_RMDIR3res(XDR *, RMDIR3res *);
2211 extern bool_t xdr_RENAME3args(XDR *, RENAME3args *);
2212 extern bool_t xdr_RENAME3res(XDR *, RENAME3res *);
2213 extern bool_t xdr_LINK3args(XDR *, LINK3args *);
2214 extern bool_t xdr_LINK3res(XDR *, LINK3res *);
2215 extern bool_t xdr_READDIR3args(XDR *, READDIR3args *);
2216 extern bool_t xdr_READDIR3res(XDR *, READDIR3res *);
2217 extern bool_t xdr_READDIR3vres(XDR *, READDIR3vres *);
2218 extern bool_t xdr_READDIRPLUS3args(XDR *, READDIRPLUS3args *);
2219 extern bool_t xdr_READDIRPLUS3res(XDR *, READDIRPLUS3res *);
2220 extern bool_t xdr_READDIRPLUS3vres(XDR *, READDIRPLUS3vres *);
2221 extern bool_t xdr_FSSTAT3res(XDR *, FSSTAT3res *);
2222 extern bool_t xdr_FSINFO3res(XDR *, FSINFO3res *);
2223 extern bool_t xdr_PATHCONF3res(XDR *, PATHCONF3res *);
2224 extern bool_t xdr_COMMIT3args(XDR *, COMMIT3args *);
2225 extern bool_t xdr_COMMIT3res(XDR *, COMMIT3res *);
2226 extern bool_t xdr_fastnfs_fh3(XDR *, nfs_fh3 **);
2227 
2228 /*
2229  * The NFS Version 3 service procedures.
2230  */
2231 struct exportinfo;      /* defined in nfs/export.h */
2232 struct servinfo;        /* defined in nfs/nfs_clnt.h */
2233 struct mntinfo;         /* defined in nfs/nfs_clnt.h */
2234 struct sec_ol;          /* defined in nfs/export.h */
2235 
2236 extern void     rfs3_getattr(GETATTR3args *, GETATTR3res *, struct exportinfo *,
2237     struct svc_req *, cred_t *, bool_t);
2238 extern void     *rfs3_getattr_getfh(GETATTR3args *);
2239 extern void     rfs3_setattr(SETATTR3args *, SETATTR3res *, struct exportinfo *,
2240     struct svc_req *, cred_t *, bool_t);
2241 extern void     *rfs3_setattr_getfh(SETATTR3args *);
2242 extern void     rfs3_lookup(LOOKUP3args *, LOOKUP3res *, struct exportinfo *,
2243     struct svc_req *, cred_t *, bool_t);
2244 extern void     *rfs3_lookup_getfh(LOOKUP3args *);
2245 extern void     rfs3_access(ACCESS3args *, ACCESS3res *, struct exportinfo *,
2246     struct svc_req *, cred_t *, bool_t);
2247 extern void     *rfs3_access_getfh(ACCESS3args *);
2248 extern void     rfs3_readlink(READLINK3args *, READLINK3res *,
2249     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
2250 extern void     *rfs3_readlink_getfh(READLINK3args *);
2251 extern void     rfs3_readlink_free(READLINK3res *);
2252 extern void     rfs3_read(READ3args *, READ3res *, struct exportinfo *,
2253     struct svc_req *, cred_t *, bool_t);
2254 extern void     *rfs3_read_getfh(READ3args *);
2255 extern void     rfs3_read_free(READ3res *);
2256 extern void     rfs3_write(WRITE3args *, WRITE3res *, struct exportinfo *,
2257     struct svc_req *, cred_t *, bool_t);
2258 extern void     *rfs3_write_getfh(WRITE3args *);
2259 extern void     rfs3_create(CREATE3args *, CREATE3res *, struct exportinfo *,
2260     struct svc_req *, cred_t *, bool_t);
2261 extern void     *rfs3_create_getfh(CREATE3args *);
2262 extern void     rfs3_mkdir(MKDIR3args *, MKDIR3res *, struct exportinfo *,
2263     struct svc_req *, cred_t *, bool_t);
2264 extern void     *rfs3_mkdir_getfh(MKDIR3args *);
2265 extern void     rfs3_symlink(SYMLINK3args *, SYMLINK3res *, struct exportinfo *,
2266     struct svc_req *, cred_t *, bool_t);
2267 extern void     *rfs3_symlink_getfh(SYMLINK3args *);
2268 extern void     rfs3_mknod(MKNOD3args *, MKNOD3res *, struct exportinfo *,
2269     struct svc_req *, cred_t *, bool_t);
2270 extern void     *rfs3_mknod_getfh(MKNOD3args *);
2271 extern void     rfs3_remove(REMOVE3args *, REMOVE3res *, struct exportinfo *,
2272     struct svc_req *, cred_t *, bool_t);
2273 extern void     *rfs3_remove_getfh(REMOVE3args *);
2274 extern void     rfs3_rmdir(RMDIR3args *, RMDIR3res *, struct exportinfo *,
2275     struct svc_req *, cred_t *, bool_t);
2276 extern void     *rfs3_rmdir_getfh(RMDIR3args *);
2277 extern void     rfs3_rename(RENAME3args *, RENAME3res *, struct exportinfo *,
2278     struct svc_req *, cred_t *, bool_t);
2279 extern void     *rfs3_rename_getfh(RENAME3args *);
2280 extern void     rfs3_link(LINK3args *, LINK3res *, struct exportinfo *,
2281     struct svc_req *, cred_t *, bool_t);
2282 extern void     *rfs3_link_getfh(LINK3args *);
2283 extern void     rfs3_readdir(READDIR3args *, READDIR3res *, struct exportinfo *,
2284     struct svc_req *, cred_t *, bool_t);
2285 extern void     *rfs3_readdir_getfh(READDIR3args *);
2286 extern void     rfs3_readdir_free(READDIR3res *);
2287 extern void     rfs3_readdirplus(READDIRPLUS3args *, READDIRPLUS3res *,
2288     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
2289 extern void     *rfs3_readdirplus_getfh(READDIRPLUS3args *);
2290 extern void     rfs3_readdirplus_free(READDIRPLUS3res *);
2291 extern void     rfs3_fsstat(FSSTAT3args *, FSSTAT3res *, struct exportinfo *,
2292     struct svc_req *, cred_t *, bool_t);
2293 extern void     *rfs3_fsstat_getfh(FSSTAT3args *);
2294 extern void     rfs3_fsinfo(FSINFO3args *, FSINFO3res *, struct exportinfo *,
2295     struct svc_req *, cred_t *, bool_t);
2296 extern void     *rfs3_fsinfo_getfh(FSINFO3args *);
2297 extern void     rfs3_pathconf(PATHCONF3args *, PATHCONF3res *,
2298     struct exportinfo *, struct svc_req *, cred_t *, bool_t);
2299 extern void     *rfs3_pathconf_getfh(PATHCONF3args *);
2300 extern void     rfs3_commit(COMMIT3args *, COMMIT3res *, struct exportinfo *,
2301     struct svc_req *, cred_t *, bool_t);
2302 extern void     *rfs3_commit_getfh(COMMIT3args *);
2303 extern void     rfs3_srvrinit(void);
2304 extern void     rfs3_srvrfini(void);
2305 extern void     rfs3_srv_zone_init(nfs_globals_t *);
2306 extern void     rfs3_srv_zone_fini(nfs_globals_t *);
2307 
2308 extern int      nfs3_validate_caches(vnode_t *, cred_t *);
2309 extern void     nfs3_cache_post_op_attr(vnode_t *, post_op_attr *, hrtime_t,
2310     cred_t *);
2311 extern void     nfs3_cache_post_op_vattr(vnode_t *, post_op_vattr *, hrtime_t,
2312     cred_t *);
2313 extern void     nfs3_cache_wcc_data(vnode_t *, wcc_data *, hrtime_t, cred_t *);
2314 extern void     nfs3_attrcache(vnode_t *, fattr3 *, hrtime_t);
2315 extern int      nfs3_cache_fattr3(vnode_t *, fattr3 *, vattr_t *, hrtime_t,
2316     cred_t *);
2317 extern int      nfs3_getattr_otw(vnode_t *, struct vattr *, cred_t *);
2318 extern int      nfs3getattr(vnode_t *, struct vattr *, cred_t *);
2319 extern int      fattr3_to_vattr(vnode_t *, fattr3 *, struct vattr *);
2320 extern int      nfs3tsize(void);
2321 extern uint_t   nfs3_tsize(struct knetconfig *);
2322 extern uint_t   rfs3_tsize(struct svc_req *);
2323 extern int      vattr_to_sattr3(struct vattr *, sattr3 *);
2324 extern void     setdiropargs3(diropargs3 *, char *, vnode_t *);
2325 extern enum nfsstat3 puterrno3(int);
2326 extern int      geterrno3(enum nfsstat3);
2327 extern int      nfs3init(int, char *);
2328 extern void     nfs3fini(void);
2329 extern int      nfs3_vfsinit(void);
2330 extern void     nfs3_vfsfini(void);
2331 extern void     vattr_to_post_op_attr(struct vattr *, post_op_attr *);
2332 extern void     mblk_to_iov(mblk_t *, int, struct iovec *);
2333 extern int      rfs_publicfh_mclookup(char *, vnode_t *, cred_t *, vnode_t **,
2334     struct exportinfo **, struct sec_ol *);
2335 extern int      rfs_pathname(char *, vnode_t **, vnode_t **, vnode_t *,
2336     cred_t *, int);
2337 extern int      rfs_cross_mnt(vnode_t **, struct exportinfo **);
2338 extern int      rfs_climb_crossmnt(vnode_t **, struct exportinfo **, cred_t *);
2339 
2340 extern vtype_t          nf3_to_vt[];
2341 extern kstat_named_t    *rfsproccnt_v3_ptr;
2342 extern vfsops_t         *nfs3_vfsops;
2343 extern struct vnodeops  *nfs3_vnodeops;
2344 extern const struct fs_operation_def nfs3_vnodeops_template[];
2345 
2346 /*
2347  * Some servers do not properly update the attributes of the
2348  * directory when changes are made.  To allow interoperability
2349  * with these broken servers, the nfs_disable_rddir_cache
2350  * parameter can be used to disable readdir response caching.
2351  */
2352 extern int              nfs_disable_rddir_cache;
2353 
2354 /*
2355  * External functions called by the v2/v3 code into the v4 code
2356  */
2357 extern void     nfs4_clnt_init(void);
2358 extern void     nfs4_clnt_fini(void);
2359 
2360 /*
2361  * Does NFS4 server have a vnode delegated?  TRUE if so, FALSE if not.
2362  */
2363 extern bool_t   rfs4_check_delegated(int mode, vnode_t *, bool_t trunc);
2364 /*
2365  * VOP_GETATTR call. If a NFS4 delegation is present on the supplied vnode
2366  * call back to the delegated client to get attributes for AT_MTIME and
2367  * AT_SIZE. Invoke VOP_GETATTR to get all other attributes or all attributes
2368  * if no delegation is present.
2369  */
2370 extern int      rfs4_delegated_getattr(vnode_t *, vattr_t *, int, cred_t *);
2371 
2372 extern int      do_xattr_exists_check(vnode_t *, ulong_t *, cred_t *);
2373 
2374 extern int      protect_zfs_mntpt(vnode_t *);
2375 
2376 extern ts_label_t *nfs_getflabel(vnode_t *, struct exportinfo *);
2377 extern boolean_t do_rfs_label_check(bslabel_t *, vnode_t *, int,
2378     struct exportinfo *);
2379 
2380 /*
2381  * Copy Reduction support.
2382  * xuio_t wrapper with additional private data.
2383  */
2384 
2385 typedef struct nfs_xuio {
2386         xuio_t nu_uio;
2387         vnode_t *nu_vp;
2388         uint_t nu_ref;
2389         frtn_t nu_frtn;
2390 } nfs_xuio_t;
2391 
2392 extern xuio_t   *rfs_setup_xuio(vnode_t *);
2393 extern mblk_t   *uio_to_mblk(uio_t *);
2394 extern mblk_t   *rfs_read_alloc(uint_t, struct iovec **, int *);
2395 extern void     rfs_rndup_mblks(mblk_t *, uint_t, int);
2396 extern void     rfs_free_xuio(void *);
2397 
2398 #endif  /* _KERNEL */
2399 
2400 #ifdef  __cplusplus
2401 }
2402 #endif
2403 
2404 #endif  /* _NFS_NFS_H */