sys/vfs/nfs/nfsm_subs.h

   1 /*
   2  * Copyright (c) 1989, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Rick Macklem at The University of Guelph.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  *      @(#)nfsm_subs.h 8.2 (Berkeley) 3/30/95
  37  * $FreeBSD: src/sys/nfs/nfsm_subs.h,v 1.27.2.1 2000/10/28 16:27:27 dwmalone Exp $
  38  * $DragonFly: src/sys/vfs/nfs/nfsm_subs.h,v 1.8 2005/05/29 10:08:36 hsu Exp $
  39  */
  40
  41
  42 #ifndef _NFS_NFSM_SUBS_H_
  43 #define _NFS_NFSM_SUBS_H_
  44
  45 struct ucred;
  46 struct vnode;
  47
  48 /*
  49  * These macros do strange and peculiar things to mbuf chains for
  50  * the assistance of the nfs code. To attempt to use them for any
  51  * other purpose will be dangerous. (they make weird assumptions)
  52  */
  53
  54 /*
  55  * First define what the actual subs. return
  56  */
  57 struct mbuf *nfsm_reqh (struct vnode *vp, u_long procid, int hsiz,
  58                             caddr_t *bposp);
  59 struct mbuf *nfsm_rpchead (struct ucred *cr, int nmflag, int procid,
  60                                int auth_type, int auth_len, char *auth_str,
  61                                int verf_len, char *verf_str,
  62                                struct mbuf *mrest, int mrest_len,
  63                                struct mbuf **mbp, u_int32_t *xidp);
  64
  65 #define M_HASCL(m)      ((m)->m_flags & M_EXT)
  66 #define NFSMINOFF(m) \
  67         do { \
  68                 if (M_HASCL(m)) \
  69                         (m)->m_data = (m)->m_ext.ext_buf; \
  70                 else if ((m)->m_flags & M_PKTHDR) \
  71                         (m)->m_data = (m)->m_pktdat; \
  72                 else \
  73                         (m)->m_data = (m)->m_dat; \
  74         } while (0)
  75 #define NFSMADV(m, s) \
  76         do { \
  77                 (m)->m_data += (s); \
  78         } while (0)
  79 #define NFSMSIZ(m)      ((M_HASCL(m))?MCLBYTES: \
  80                                 (((m)->m_flags & M_PKTHDR)?MHLEN:MLEN))
  81
  82 /*
  83  * Now for the macros that do the simple stuff and call the functions
  84  * for the hard stuff.
  85  * These macros use several vars. declared in nfsm_reqhead and these
  86  * vars. must not be used elsewhere unless you are careful not to corrupt
  87  * them. The vars. starting with pN and tN (N=1,2,3,..) are temporaries
  88  * that may be used so long as the value is not expected to retained
  89  * after a macro.
  90  * I know, this is kind of dorkey, but it makes the actual op functions
  91  * fairly clean and deals with the mess caused by the xdr discriminating
  92  * unions.
  93  */
  94
  95 #define nfsm_build(a,c,s) \
  96         do { \
  97                 if ((s) > M_TRAILINGSPACE(mb)) { \
  98                         MGET(mb2, MB_WAIT, MT_DATA); \
  99                         if ((s) > MLEN) \
 100                                 panic("build > MLEN"); \
 101                         mb->m_next = mb2; \
 102                         mb = mb2; \
 103                         mb->m_len = 0; \
 104                         bpos = mtod(mb, caddr_t); \
 105                 } \
 106                 (a) = (c)(bpos); \
 107                 mb->m_len += (s); \
 108                 bpos += (s); \
 109         } while (0)
 110
 111 #define nfsm_dissect(a, c, s) \
 112         do { \
 113                 t1 = mtod(md, caddr_t)+md->m_len-dpos; \
 114                 if (t1 >= (s)) { \
 115                         (a) = (c)(dpos); \
 116                         dpos += (s); \
 117                 } else if ((t1 = nfsm_disct(&md, &dpos, (s), t1, &cp2)) != 0){ \
 118                         error = t1; \
 119                         m_freem(mrep); \
 120                         goto nfsmout; \
 121                 } else { \
 122                         (a) = (c)cp2; \
 123                 } \
 124         } while (0)
 125
 126 #define nfsm_fhtom(v, v3) \
 127         do { \
 128                 if (v3) { \
 129                         t2 = nfsm_rndup(VTONFS(v)->n_fhsize) + NFSX_UNSIGNED; \
 130                         if (t2 <= M_TRAILINGSPACE(mb)) { \
 131                                 nfsm_build(tl, u_int32_t *, t2); \
 132                                 *tl++ = txdr_unsigned(VTONFS(v)->n_fhsize); \
 133                                 *(tl + ((t2>>2) - 2)) = 0; \
 134                                 bcopy((caddr_t)VTONFS(v)->n_fhp,(caddr_t)tl, \
 135                                         VTONFS(v)->n_fhsize); \
 136                         } else if ((t2 = nfsm_strtmbuf(&mb, &bpos, \
 137                                 (caddr_t)VTONFS(v)->n_fhp, \
 138                                 VTONFS(v)->n_fhsize)) != 0) { \
 139                                 error = t2; \
 140                                 m_freem(mreq); \
 141                                 goto nfsmout; \
 142                         } \
 143                 } else { \
 144                         nfsm_build(cp, caddr_t, NFSX_V2FH); \
 145                         bcopy((caddr_t)VTONFS(v)->n_fhp, cp, NFSX_V2FH); \
 146                 } \
 147         } while (0)
 148
 149 #define nfsm_srvfhtom(f, v3) \
 150         do { \
 151                 if (v3) { \
 152                         nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_V3FH);\
 153                         *tl++ = txdr_unsigned(NFSX_V3FH); \
 154                         bcopy((caddr_t)(f), (caddr_t)tl, NFSX_V3FH); \
 155                 } else { \
 156                         nfsm_build(cp, caddr_t, NFSX_V2FH); \
 157                         bcopy((caddr_t)(f), cp, NFSX_V2FH); \
 158                 } \
 159         } while (0)
 160
 161 #define nfsm_srvpostop_fh(f) \
 162         do { \
 163                 nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED + NFSX_V3FH); \
 164                 *tl++ = nfs_true; \
 165                 *tl++ = txdr_unsigned(NFSX_V3FH); \
 166                 bcopy((caddr_t)(f), (caddr_t)tl, NFSX_V3FH); \
 167         } while (0)
 168
 169 #define nfsm_mtofh(d, v, v3, f) \
 170         do { \
 171                 struct nfsnode *ttnp; nfsfh_t *ttfhp; int ttfhsize; \
 172                 if (v3) { \
 173                         nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 174                         (f) = fxdr_unsigned(int, *tl); \
 175                 } else \
 176                         (f) = 1; \
 177                 if (f) { \
 178                         nfsm_getfh(ttfhp, ttfhsize, (v3)); \
 179                         if ((t1 = nfs_nget((d)->v_mount, ttfhp, ttfhsize, \
 180                                 &ttnp)) != 0) { \
 181                                 error = t1; \
 182                                 m_freem(mrep); \
 183                                 goto nfsmout; \
 184                         } \
 185                         (v) = NFSTOV(ttnp); \
 186                 } \
 187                 if (v3) { \
 188                         nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 189                         if (f) \
 190                                 (f) = fxdr_unsigned(int, *tl); \
 191                         else if (fxdr_unsigned(int, *tl)) \
 192                                 nfsm_adv(NFSX_V3FATTR); \
 193                 } \
 194                 if (f) \
 195                         nfsm_loadattr((v), (struct vattr *)0); \
 196         } while (0)
 197
 198 #define nfsm_getfh(f, s, v3) \
 199         do { \
 200                 if (v3) { \
 201                         nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 202                         if (((s) = fxdr_unsigned(int, *tl)) <= 0 || \
 203                                 (s) > NFSX_V3FHMAX) { \
 204                                 m_freem(mrep); \
 205                                 error = EBADRPC; \
 206                                 goto nfsmout; \
 207                         } \
 208                 } else \
 209                         (s) = NFSX_V2FH; \
 210                 nfsm_dissect((f), nfsfh_t *, nfsm_rndup(s)); \
 211         } while (0)
 212
 213 #define nfsm_loadattr(v, a) \
 214         do { \
 215                 struct vnode *ttvp = (v); \
 216                 if ((t1 = nfs_loadattrcache(&ttvp, &md, &dpos, (a), 0)) != 0) { \
 217                         error = t1; \
 218                         m_freem(mrep); \
 219                         goto nfsmout; \
 220                 } \
 221                 (v) = ttvp; \
 222         } while (0)
 223
 224 #define nfsm_postop_attr(v, f, lflags) \
 225         do { \
 226                 struct vnode *ttvp = (v); \
 227                 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 228                 if (((f) = fxdr_unsigned(int, *tl)) != 0) { \
 229                         if ((t1 = nfs_loadattrcache(&ttvp, &md, &dpos, \
 230                                 (struct vattr *)0, lflags)) != 0) { \
 231                                 error = t1; \
 232                                 (f) = 0; \
 233                                 m_freem(mrep); \
 234                                 goto nfsmout; \
 235                         } \
 236                         (v) = ttvp; \
 237                 } \
 238         } while (0)
 239
 240 /*
 241  * This function updates the attribute cache based on data returned in the
 242  * NFS reply for NFS RPCs that modify the target file.  If the RPC succeeds
 243  * a 'before' and 'after' mtime is returned that allows us to determine if
 244  * the new mtime attribute represents our modification or someone else's
 245  * modification.
 246  *
 247  * The flag argument returns non-0 if the original times matched, zero if
 248  * they did not match.  NRMODIFIED is automatically set if the before time
 249  * does not match the original n_mtime, and n_mtime is automatically updated
 250  * to the new after time (by nfsm_postop_attr()).
 251  */
 252 /* Used as (f) for nfsm_wcc_data() */
 253 #define NFSV3_WCCRATTR  0
 254 #define NFSV3_WCCCHK    1
 255
 256 #define nfsm_wcc_data(v, f) \
 257         do { \
 258                 int ttattrf, ttretf = 0; \
 259                 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 260                 if (*tl == nfs_true) { \
 261                         nfsm_dissect(tl, u_int32_t *, 6 * NFSX_UNSIGNED); \
 262                         if (f) { \
 263                                 ttretf = (VTONFS(v)->n_mtime == \
 264                                         fxdr_unsigned(u_int32_t, *(tl + 2))); \
 265                                 if (!ttretf) \
 266                                         VTONFS(v)->n_flag |= NRMODIFIED; \
 267                         } \
 268                         nfsm_postop_attr((v), ttattrf, NFS_LATTR_NOSHRINK|NFS_LATTR_NOMTIMECHECK); \
 269                 } else { \
 270                         nfsm_postop_attr((v), ttattrf, NFS_LATTR_NOSHRINK); \
 271                 } \
 272                 if (f) { \
 273                         (f) = ttretf; \
 274                 } else { \
 275                         (f) = ttattrf; \
 276                 } \
 277         } while (0)
 278
 279 /* If full is true, set all fields, otherwise just set mode and time fields */
 280 #define nfsm_v3attrbuild(a, full) \
 281         do { \
 282                 if ((a)->va_mode != (mode_t)VNOVAL) {                   \
 283                         nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \
 284                         *tl++ = nfs_true;                               \
 285                         *tl = txdr_unsigned((a)->va_mode);              \
 286                 } else {                                                \
 287                         nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);     \
 288                         *tl = nfs_false;                                \
 289                 }                                                       \
 290                 if ((full) && (a)->va_uid != (uid_t)VNOVAL) {           \
 291                         nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \
 292                         *tl++ = nfs_true;                               \
 293                         *tl = txdr_unsigned((a)->va_uid);               \
 294                 } else {                                                \
 295                         nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);     \
 296                         *tl = nfs_false;                                \
 297                 }                                                       \
 298                 if ((full) && (a)->va_gid != (gid_t)VNOVAL) {           \
 299                         nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \
 300                         *tl++ = nfs_true;                               \
 301                         *tl = txdr_unsigned((a)->va_gid);               \
 302                 } else {                                                \
 303                         nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);     \
 304                         *tl = nfs_false;                                \
 305                 }                                                       \
 306                 if ((full) && (a)->va_size != VNOVAL) {                 \
 307                         nfsm_build(tl, u_int32_t *, 3 * NFSX_UNSIGNED); \
 308                         *tl++ = nfs_true;                               \
 309                         txdr_hyper((a)->va_size, tl);                   \
 310                 } else {                                                \
 311                         nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);     \
 312                         *tl = nfs_false;                                \
 313                 }                                                       \
 314                 if ((a)->va_atime.tv_sec != VNOVAL) {                   \
 315                         if ((a)->va_atime.tv_sec != time_second) {      \
 316                                 nfsm_build(tl, u_int32_t *, 3 * NFSX_UNSIGNED);\
 317                                 *tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT);\
 318                                 txdr_nfsv3time(&(a)->va_atime, tl);     \
 319                         } else {                                        \
 320                                 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \
 321                                 *tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER); \
 322                         }                                               \
 323                 } else {                                                \
 324                         nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);     \
 325                         *tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE); \
 326                 }                                                       \
 327                 if ((a)->va_mtime.tv_sec != VNOVAL) {                   \
 328                         if ((a)->va_mtime.tv_sec != time_second) {      \
 329                                 nfsm_build(tl, u_int32_t *, 3 * NFSX_UNSIGNED);\
 330                                 *tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT);\
 331                                 txdr_nfsv3time(&(a)->va_mtime, tl);     \
 332                         } else {                                        \
 333                                 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \
 334                                 *tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER); \
 335                         }                                               \
 336                 } else {                                                \
 337                         nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);     \
 338                         *tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE); \
 339                 }                                                       \
 340         } while (0)
 341
 342
 343 #define nfsm_strsiz(s,m) \
 344         do { \
 345                 nfsm_dissect(tl,u_int32_t *,NFSX_UNSIGNED); \
 346                 if (((s) = fxdr_unsigned(int32_t,*tl)) > (m)) { \
 347                         m_freem(mrep); \
 348                         error = EBADRPC; \
 349                         goto nfsmout; \
 350                 } \
 351         } while (0)
 352
 353 #define nfsm_srvstrsiz(s,m) \
 354         do { \
 355                 nfsm_dissect(tl,u_int32_t *,NFSX_UNSIGNED); \
 356                 if (((s) = fxdr_unsigned(int32_t,*tl)) > (m) || (s) <= 0) { \
 357                         error = EBADRPC; \
 358                         nfsm_reply(0); \
 359                 } \
 360         } while (0)
 361
 362 #define nfsm_srvnamesiz(s) \
 363         do { \
 364                 nfsm_dissect(tl,u_int32_t *,NFSX_UNSIGNED); \
 365                 if (((s) = fxdr_unsigned(int32_t,*tl)) > NFS_MAXNAMLEN) \
 366                         error = NFSERR_NAMETOL; \
 367                 if ((s) <= 0) \
 368                         error = EBADRPC; \
 369                 if (error) \
 370                         nfsm_reply(0); \
 371         } while (0)
 372
 373 #define nfsm_mtouio(p,s) \
 374         do {\
 375                 if ((s) > 0 && \
 376                    (t1 = nfsm_mbuftouio(&md,(p),(s),&dpos)) != 0) { \
 377                         error = t1; \
 378                         m_freem(mrep); \
 379                         goto nfsmout; \
 380                 } \
 381         } while (0)
 382
 383 #define nfsm_uiotom(p,s) \
 384         do { \
 385                 if ((t1 = nfsm_uiotombuf((p),&mb,(s),&bpos)) != 0) { \
 386                         error = t1; \
 387                         m_freem(mreq); \
 388                         goto nfsmout; \
 389                 } \
 390         } while (0)
 391
 392 #define nfsm_reqhead(v,a,s) \
 393         do { \
 394                 mb = mreq = nfsm_reqh((v),(a),(s),&bpos); \
 395         } while (0)
 396
 397 #define nfsm_rndup(a)   (((a)+3)&(~0x3))
 398
 399 #define nfsm_request(v, t, td, c) \
 400         do { \
 401                 if ((error = nfs_request((v), mreq, (t), (td), \
 402                    (c), &mrep, &md, &dpos)) != 0) { \
 403                         if (error & NFSERR_RETERR) \
 404                                 error &= ~NFSERR_RETERR; \
 405                         else \
 406                                 goto nfsmout; \
 407                 } \
 408         } while (0)
 409
 410 #define nfsm_strtom(a,s,m) \
 411         do {\
 412                 if ((s) > (m)) { \
 413                         m_freem(mreq); \
 414                         error = ENAMETOOLONG; \
 415                         goto nfsmout; \
 416                 } \
 417                 t2 = nfsm_rndup(s)+NFSX_UNSIGNED; \
 418                 if (t2 <= M_TRAILINGSPACE(mb)) { \
 419                         nfsm_build(tl,u_int32_t *,t2); \
 420                         *tl++ = txdr_unsigned(s); \
 421                         *(tl+((t2>>2)-2)) = 0; \
 422                         bcopy((const char *)(a), (caddr_t)tl, (s)); \
 423                 } else if ((t2 = nfsm_strtmbuf(&mb, &bpos, (a), (s))) != 0) { \
 424                         error = t2; \
 425                         m_freem(mreq); \
 426                         goto nfsmout; \
 427                 } \
 428         } while (0)
 429
 430 #define nfsm_srvdone \
 431         do { \
 432                 nfsmout: \
 433                 return (error); \
 434         } while (0)
 435
 436 #define nfsm_reply(s) \
 437         do { \
 438                 nfsd->nd_repstat = error; \
 439                 if (error && !(nfsd->nd_flag & ND_NFSV3)) \
 440                    (void) nfs_rephead(0, nfsd, slp, error, cache, &frev, \
 441                         mrq, &mb, &bpos); \
 442                 else \
 443                    (void) nfs_rephead((s), nfsd, slp, error, cache, &frev, \
 444                         mrq, &mb, &bpos); \
 445                 if (mrep != NULL) { \
 446                         m_freem(mrep); \
 447                         mrep = NULL; \
 448                 } \
 449                 mreq = *mrq; \
 450                 if (error && (!(nfsd->nd_flag & ND_NFSV3) || \
 451                         error == EBADRPC)) { \
 452                         error = 0; \
 453                         goto nfsmout; \
 454                 } \
 455         } while (0)
 456
 457 #define nfsm_writereply(s, v3) \
 458         do { \
 459                 nfsd->nd_repstat = error; \
 460                 if (error && !(v3)) \
 461                    (void) nfs_rephead(0, nfsd, slp, error, cache, &frev, \
 462                         &mreq, &mb, &bpos); \
 463                 else \
 464                    (void) nfs_rephead((s), nfsd, slp, error, cache, &frev, \
 465                         &mreq, &mb, &bpos); \
 466         } while (0)
 467
 468 #define nfsm_adv(s) \
 469         do { \
 470                 t1 = mtod(md, caddr_t)+md->m_len-dpos; \
 471                 if (t1 >= (s)) { \
 472                         dpos += (s); \
 473                 } else if ((t1 = nfs_adv(&md, &dpos, (s), t1)) != 0) { \
 474                         error = t1; \
 475                         m_freem(mrep); \
 476                         goto nfsmout; \
 477                 } \
 478         } while (0)
 479
 480 #define nfsm_srvmtofh(f) \
 481         do { \
 482                 int fhlen; \
 483                 if (nfsd->nd_flag & ND_NFSV3) { \
 484                         nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 485                         fhlen = fxdr_unsigned(int, *tl); \
 486                         if (fhlen != 0 && fhlen != NFSX_V3FH) { \
 487                                 error = EBADRPC; \
 488                                 nfsm_reply(0); \
 489                         } \
 490                 } else { \
 491                         fhlen = NFSX_V2FH; \
 492                 } \
 493                 if (fhlen != 0) { \
 494                         nfsm_dissect(tl, u_int32_t *, fhlen); \
 495                         bcopy((caddr_t)tl, (caddr_t)(f), fhlen); \
 496                 } else {\
 497                         bzero((caddr_t)(f), NFSX_V3FH); \
 498                 } \
 499         } while (0)
 500
 501 #define nfsm_clget \
 502         do { \
 503                 if (bp >= be) { \
 504                         if (mp == mb) \
 505                                 mp->m_len += bp-bpos; \
 506                         mp = m_getcl(MB_WAIT, MT_DATA, 0); \
 507                         mp->m_len = MCLBYTES; \
 508                         mp2->m_next = mp; \
 509                         mp2 = mp; \
 510                         bp = mtod(mp, caddr_t); \
 511                         be = bp+mp->m_len; \
 512                 } \
 513                 tl = (u_int32_t *)bp; \
 514         } while (0)
 515
 516 #define nfsm_srvfillattr(a, f) \
 517         do { \
 518                 nfsm_srvfattr(nfsd, (a), (f)); \
 519         } while (0)
 520
 521 #define nfsm_srvwcc_data(br, b, ar, a) \
 522         do { \
 523                 nfsm_srvwcc(nfsd, (br), (b), (ar), (a), &mb, &bpos); \
 524         } while (0)
 525
 526 #define nfsm_srvpostop_attr(r, a) \
 527         do { \
 528                 nfsm_srvpostopattr(nfsd, (r), (a), &mb, &bpos); \
 529         } while (0)
 530
 531 #define nfsm_srvsattr(a) \
 532         do { \
 533                 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 534                 if (*tl == nfs_true) { \
 535                         nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 536                         (a)->va_mode = nfstov_mode(*tl); \
 537                 } \
 538                 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 539                 if (*tl == nfs_true) { \
 540                         nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 541                         (a)->va_uid = fxdr_unsigned(uid_t, *tl); \
 542                 } \
 543                 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 544                 if (*tl == nfs_true) { \
 545                         nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 546                         (a)->va_gid = fxdr_unsigned(gid_t, *tl); \
 547                 } \
 548                 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 549                 if (*tl == nfs_true) { \
 550                         nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \
 551                         (a)->va_size = fxdr_hyper(tl); \
 552                 } \
 553                 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 554                 switch (fxdr_unsigned(int, *tl)) { \
 555                 case NFSV3SATTRTIME_TOCLIENT: \
 556                         nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \
 557                         fxdr_nfsv3time(tl, &(a)->va_atime); \
 558                         break; \
 559                 case NFSV3SATTRTIME_TOSERVER: \
 560                         getnanotime(&(a)->va_atime); \
 561                         break; \
 562                 }; \
 563                 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 564                 switch (fxdr_unsigned(int, *tl)) { \
 565                 case NFSV3SATTRTIME_TOCLIENT: \
 566                         nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \
 567                         fxdr_nfsv3time(tl, &(a)->va_mtime); \
 568                         break; \
 569                 case NFSV3SATTRTIME_TOSERVER: \
 570                         getnanotime(&(a)->va_mtime); \
 571                         break; \
 572                 } \
 573         } while (0)
 574
 575 #endif