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  */
  39
  40
  41 #ifndef _NFS_NFSM_SUBS_H_
  42 #define _NFS_NFSM_SUBS_H_
  43
  44 struct ucred;
  45 struct vnode;
  46
  47 /*
  48  * These macros do strange and peculiar things to mbuf chains for
  49  * the assistance of the nfs code. To attempt to use them for any
  50  * other purpose will be dangerous. (they make weird assumptions)
  51  */
  52
  53 /*
  54  * First define what the actual subs. return
  55  */
  56 struct mbuf *nfsm_reqh __P((struct vnode *vp, u_long procid, int hsiz,
  57                             caddr_t *bposp));
  58 struct mbuf *nfsm_rpchead __P((struct ucred *cr, int nmflag, int procid,
  59                                int auth_type, int auth_len, char *auth_str,
  60                                int verf_len, char *verf_str,
  61                                struct mbuf *mrest, int mrest_len,
  62                                struct mbuf **mbp, u_int32_t *xidp));
  63
  64 #define M_HASCL(m)      ((m)->m_flags & M_EXT)
  65 #define NFSMINOFF(m) \
  66         do { \
  67                 if (M_HASCL(m)) \
  68                         (m)->m_data = (m)->m_ext.ext_buf; \
  69                 else if ((m)->m_flags & M_PKTHDR) \
  70                         (m)->m_data = (m)->m_pktdat; \
  71                 else \
  72                         (m)->m_data = (m)->m_dat; \
  73         } while (0)
  74 #define NFSMADV(m, s) \
  75         do { \
  76                 (m)->m_data += (s); \
  77         } while (0)
  78 #define NFSMSIZ(m)      ((M_HASCL(m))?MCLBYTES: \
  79                                 (((m)->m_flags & M_PKTHDR)?MHLEN:MLEN))
  80
  81 /*
  82  * Now for the macros that do the simple stuff and call the functions
  83  * for the hard stuff.
  84  * These macros use several vars. declared in nfsm_reqhead and these
  85  * vars. must not be used elsewhere unless you are careful not to corrupt
  86  * them. The vars. starting with pN and tN (N=1,2,3,..) are temporaries
  87  * that may be used so long as the value is not expected to retained
  88  * after a macro.
  89  * I know, this is kind of dorkey, but it makes the actual op functions
  90  * fairly clean and deals with the mess caused by the xdr discriminating
  91  * unions.
  92  */
  93
  94 #define nfsm_build(a,c,s) \
  95         do { \
  96                 if ((s) > M_TRAILINGSPACE(mb)) { \
  97                         MGET(mb2, M_WAIT, MT_DATA); \
  98                         if ((s) > MLEN) \
  99                                 panic("build > MLEN"); \
 100                         mb->m_next = mb2; \
 101                         mb = mb2; \
 102                         mb->m_len = 0; \
 103                         bpos = mtod(mb, caddr_t); \
 104                 } \
 105                 (a) = (c)(bpos); \
 106                 mb->m_len += (s); \
 107                 bpos += (s); \
 108         } while (0)
 109
 110 #define nfsm_dissect(a, c, s) \
 111         do { \
 112                 t1 = mtod(md, caddr_t)+md->m_len-dpos; \
 113                 if (t1 >= (s)) { \
 114                         (a) = (c)(dpos); \
 115                         dpos += (s); \
 116                 } else if ((t1 = nfsm_disct(&md, &dpos, (s), t1, &cp2)) != 0){ \
 117                         error = t1; \
 118                         m_freem(mrep); \
 119                         goto nfsmout; \
 120                 } else { \
 121                         (a) = (c)cp2; \
 122                 } \
 123         } while (0)
 124
 125 #define nfsm_fhtom(v, v3) \
 126         do { \
 127                 if (v3) { \
 128                         t2 = nfsm_rndup(VTONFS(v)->n_fhsize) + NFSX_UNSIGNED; \
 129                         if (t2 <= M_TRAILINGSPACE(mb)) { \
 130                                 nfsm_build(tl, u_int32_t *, t2); \
 131                                 *tl++ = txdr_unsigned(VTONFS(v)->n_fhsize); \
 132                                 *(tl + ((t2>>2) - 2)) = 0; \
 133                                 bcopy((caddr_t)VTONFS(v)->n_fhp,(caddr_t)tl, \
 134                                         VTONFS(v)->n_fhsize); \
 135                         } else if ((t2 = nfsm_strtmbuf(&mb, &bpos, \
 136                                 (caddr_t)VTONFS(v)->n_fhp, \
 137                                 VTONFS(v)->n_fhsize)) != 0) { \
 138                                 error = t2; \
 139                                 m_freem(mreq); \
 140                                 goto nfsmout; \
 141                         } \
 142                 } else { \
 143                         nfsm_build(cp, caddr_t, NFSX_V2FH); \
 144                         bcopy((caddr_t)VTONFS(v)->n_fhp, cp, NFSX_V2FH); \
 145                 } \
 146         } while (0)
 147
 148 #define nfsm_srvfhtom(f, v3) \
 149         do { \
 150                 if (v3) { \
 151                         nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_V3FH);\
 152                         *tl++ = txdr_unsigned(NFSX_V3FH); \
 153                         bcopy((caddr_t)(f), (caddr_t)tl, NFSX_V3FH); \
 154                 } else { \
 155                         nfsm_build(cp, caddr_t, NFSX_V2FH); \
 156                         bcopy((caddr_t)(f), cp, NFSX_V2FH); \
 157                 } \
 158         } while (0)
 159
 160 #define nfsm_srvpostop_fh(f) \
 161         do { \
 162                 nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED + NFSX_V3FH); \
 163                 *tl++ = nfs_true; \
 164                 *tl++ = txdr_unsigned(NFSX_V3FH); \
 165                 bcopy((caddr_t)(f), (caddr_t)tl, NFSX_V3FH); \
 166         } while (0)
 167
 168 #define nfsm_mtofh(d, v, v3, f) \
 169         do { \
 170                 struct nfsnode *ttnp; nfsfh_t *ttfhp; int ttfhsize; \
 171                 if (v3) { \
 172                         nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 173                         (f) = fxdr_unsigned(int, *tl); \
 174                 } else \
 175                         (f) = 1; \
 176                 if (f) { \
 177                         nfsm_getfh(ttfhp, ttfhsize, (v3)); \
 178                         if ((t1 = nfs_nget((d)->v_mount, ttfhp, ttfhsize, \
 179                                 &ttnp)) != 0) { \
 180                                 error = t1; \
 181                                 m_freem(mrep); \
 182                                 goto nfsmout; \
 183                         } \
 184                         (v) = NFSTOV(ttnp); \
 185                 } \
 186                 if (v3) { \
 187                         nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 188                         if (f) \
 189                                 (f) = fxdr_unsigned(int, *tl); \
 190                         else if (fxdr_unsigned(int, *tl)) \
 191                                 nfsm_adv(NFSX_V3FATTR); \
 192                 } \
 193                 if (f) \
 194                         nfsm_loadattr((v), (struct vattr *)0); \
 195         } while (0)
 196
 197 #define nfsm_getfh(f, s, v3) \
 198         do { \
 199                 if (v3) { \
 200                         nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 201                         if (((s) = fxdr_unsigned(int, *tl)) <= 0 || \
 202                                 (s) > NFSX_V3FHMAX) { \
 203                                 m_freem(mrep); \
 204                                 error = EBADRPC; \
 205                                 goto nfsmout; \
 206                         } \
 207                 } else \
 208                         (s) = NFSX_V2FH; \
 209                 nfsm_dissect((f), nfsfh_t *, nfsm_rndup(s)); \
 210         } while (0)
 211
 212 #define nfsm_loadattr(v, a) \
 213         do { \
 214                 struct vnode *ttvp = (v); \
 215                 if ((t1 = nfs_loadattrcache(&ttvp, &md, &dpos, (a), 0)) != 0) { \
 216                         error = t1; \
 217                         m_freem(mrep); \
 218                         goto nfsmout; \
 219                 } \
 220                 (v) = ttvp; \
 221         } while (0)
 222
 223 #define nfsm_postop_attr(v, f) \
 224         do { \
 225                 struct vnode *ttvp = (v); \
 226                 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 227                 if (((f) = fxdr_unsigned(int, *tl)) != 0) { \
 228                         if ((t1 = nfs_loadattrcache(&ttvp, &md, &dpos, \
 229                                 (struct vattr *)0, 1)) != 0) { \
 230                                 error = t1; \
 231                                 (f) = 0; \
 232                                 m_freem(mrep); \
 233                                 goto nfsmout; \
 234                         } \
 235                         (v) = ttvp; \
 236                 } \
 237         } while (0)
 238
 239 /* Used as (f) for nfsm_wcc_data() */
 240 #define NFSV3_WCCRATTR  0
 241 #define NFSV3_WCCCHK    1
 242
 243 #define nfsm_wcc_data(v, f) \
 244         do { \
 245                 int ttattrf, ttretf = 0; \
 246                 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 247                 if (*tl == nfs_true) { \
 248                         nfsm_dissect(tl, u_int32_t *, 6 * NFSX_UNSIGNED); \
 249                         if (f) \
 250                                 ttretf = (VTONFS(v)->n_mtime == \
 251                                         fxdr_unsigned(u_int32_t, *(tl + 2))); \
 252                 } \
 253                 nfsm_postop_attr((v), ttattrf); \
 254                 if (f) { \
 255                         (f) = ttretf; \
 256                 } else { \
 257                         (f) = ttattrf; \
 258                 } \
 259         } while (0)
 260
 261 /* If full is true, set all fields, otherwise just set mode and time fields */
 262 #define nfsm_v3attrbuild(a, full) \
 263         do { \
 264                 if ((a)->va_mode != (mode_t)VNOVAL) {                   \
 265                         nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \
 266                         *tl++ = nfs_true;                               \
 267                         *tl = txdr_unsigned((a)->va_mode);              \
 268                 } else {                                                \
 269                         nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);     \
 270                         *tl = nfs_false;                                \
 271                 }                                                       \
 272                 if ((full) && (a)->va_uid != (uid_t)VNOVAL) {           \
 273                         nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \
 274                         *tl++ = nfs_true;                               \
 275                         *tl = txdr_unsigned((a)->va_uid);               \
 276                 } else {                                                \
 277                         nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);     \
 278                         *tl = nfs_false;                                \
 279                 }                                                       \
 280                 if ((full) && (a)->va_gid != (gid_t)VNOVAL) {           \
 281                         nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \
 282                         *tl++ = nfs_true;                               \
 283                         *tl = txdr_unsigned((a)->va_gid);               \
 284                 } else {                                                \
 285                         nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);     \
 286                         *tl = nfs_false;                                \
 287                 }                                                       \
 288                 if ((full) && (a)->va_size != VNOVAL) {                 \
 289                         nfsm_build(tl, u_int32_t *, 3 * NFSX_UNSIGNED); \
 290                         *tl++ = nfs_true;                               \
 291                         txdr_hyper((a)->va_size, tl);                   \
 292                 } else {                                                \
 293                         nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);     \
 294                         *tl = nfs_false;                                \
 295                 }                                                       \
 296                 if ((a)->va_atime.tv_sec != VNOVAL) {                   \
 297                         if ((a)->va_atime.tv_sec != time_second) {      \
 298                                 nfsm_build(tl, u_int32_t *, 3 * NFSX_UNSIGNED);\
 299                                 *tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT);\
 300                                 txdr_nfsv3time(&(a)->va_atime, tl);     \
 301                         } else {                                        \
 302                                 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \
 303                                 *tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER); \
 304                         }                                               \
 305                 } else {                                                \
 306                         nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);     \
 307                         *tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE); \
 308                 }                                                       \
 309                 if ((a)->va_mtime.tv_sec != VNOVAL) {                   \
 310                         if ((a)->va_mtime.tv_sec != time_second) {      \
 311                                 nfsm_build(tl, u_int32_t *, 3 * NFSX_UNSIGNED);\
 312                                 *tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT);\
 313                                 txdr_nfsv3time(&(a)->va_mtime, tl);     \
 314                         } else {                                        \
 315                                 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \
 316                                 *tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER); \
 317                         }                                               \
 318                 } else {                                                \
 319                         nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);     \
 320                         *tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE); \
 321                 }                                                       \
 322         } while (0)
 323
 324
 325 #define nfsm_strsiz(s,m) \
 326         do { \
 327                 nfsm_dissect(tl,u_int32_t *,NFSX_UNSIGNED); \
 328                 if (((s) = fxdr_unsigned(int32_t,*tl)) > (m)) { \
 329                         m_freem(mrep); \
 330                         error = EBADRPC; \
 331                         goto nfsmout; \
 332                 } \
 333         } while (0)
 334
 335 #define nfsm_srvstrsiz(s,m) \
 336         do { \
 337                 nfsm_dissect(tl,u_int32_t *,NFSX_UNSIGNED); \
 338                 if (((s) = fxdr_unsigned(int32_t,*tl)) > (m) || (s) <= 0) { \
 339                         error = EBADRPC; \
 340                         nfsm_reply(0); \
 341                 } \
 342         } while (0)
 343
 344 #define nfsm_srvnamesiz(s) \
 345         do { \
 346                 nfsm_dissect(tl,u_int32_t *,NFSX_UNSIGNED); \
 347                 if (((s) = fxdr_unsigned(int32_t,*tl)) > NFS_MAXNAMLEN) \
 348                         error = NFSERR_NAMETOL; \
 349                 if ((s) <= 0) \
 350                         error = EBADRPC; \
 351                 if (error) \
 352                         nfsm_reply(0); \
 353         } while (0)
 354
 355 #define nfsm_mtouio(p,s) \
 356         do {\
 357                 if ((s) > 0 && \
 358                    (t1 = nfsm_mbuftouio(&md,(p),(s),&dpos)) != 0) { \
 359                         error = t1; \
 360                         m_freem(mrep); \
 361                         goto nfsmout; \
 362                 } \
 363         } while (0)
 364
 365 #define nfsm_uiotom(p,s) \
 366         do { \
 367                 if ((t1 = nfsm_uiotombuf((p),&mb,(s),&bpos)) != 0) { \
 368                         error = t1; \
 369                         m_freem(mreq); \
 370                         goto nfsmout; \
 371                 } \
 372         } while (0)
 373
 374 #define nfsm_reqhead(v,a,s) \
 375         do { \
 376                 mb = mreq = nfsm_reqh((v),(a),(s),&bpos); \
 377         } while (0)
 378
 379 #define nfsm_reqdone \
 380         do { \
 381                 m_freem(mrep); \
 382                 nfsmout: \
 383         } while (0)
 384
 385 #define nfsm_rndup(a)   (((a)+3)&(~0x3))
 386
 387 #define nfsm_request(v, t, p, c) \
 388         do { \
 389                 if ((error = nfs_request((v), mreq, (t), (p), \
 390                    (c), &mrep, &md, &dpos)) != 0) { \
 391                         if (error & NFSERR_RETERR) \
 392                                 error &= ~NFSERR_RETERR; \
 393                         else \
 394                                 goto nfsmout; \
 395                 } \
 396         } while (0)
 397
 398 #define nfsm_strtom(a,s,m) \
 399         do {\
 400                 if ((s) > (m)) { \
 401                         m_freem(mreq); \
 402                         error = ENAMETOOLONG; \
 403                         goto nfsmout; \
 404                 } \
 405                 t2 = nfsm_rndup(s)+NFSX_UNSIGNED; \
 406                 if (t2 <= M_TRAILINGSPACE(mb)) { \
 407                         nfsm_build(tl,u_int32_t *,t2); \
 408                         *tl++ = txdr_unsigned(s); \
 409                         *(tl+((t2>>2)-2)) = 0; \
 410                         bcopy((const char *)(a), (caddr_t)tl, (s)); \
 411                 } else if ((t2 = nfsm_strtmbuf(&mb, &bpos, (a), (s))) != 0) { \
 412                         error = t2; \
 413                         m_freem(mreq); \
 414                         goto nfsmout; \
 415                 } \
 416         } while (0)
 417
 418 #define nfsm_srvdone \
 419         do { \
 420                 nfsmout: \
 421                 return (error); \
 422         } while (0)
 423
 424 #define nfsm_reply(s) \
 425         do { \
 426                 nfsd->nd_repstat = error; \
 427                 if (error && !(nfsd->nd_flag & ND_NFSV3)) \
 428                    (void) nfs_rephead(0, nfsd, slp, error, cache, &frev, \
 429                         mrq, &mb, &bpos); \
 430                 else \
 431                    (void) nfs_rephead((s), nfsd, slp, error, cache, &frev, \
 432                         mrq, &mb, &bpos); \
 433                 if (mrep != NULL) { \
 434                         m_freem(mrep); \
 435                         mrep = NULL; \
 436                 } \
 437                 mreq = *mrq; \
 438                 if (error && (!(nfsd->nd_flag & ND_NFSV3) || \
 439                         error == EBADRPC)) { \
 440                         error = 0; \
 441                         goto nfsmout; \
 442                 } \
 443         } while (0)
 444
 445 #define nfsm_writereply(s, v3) \
 446         do { \
 447                 nfsd->nd_repstat = error; \
 448                 if (error && !(v3)) \
 449                    (void) nfs_rephead(0, nfsd, slp, error, cache, &frev, \
 450                         &mreq, &mb, &bpos); \
 451                 else \
 452                    (void) nfs_rephead((s), nfsd, slp, error, cache, &frev, \
 453                         &mreq, &mb, &bpos); \
 454         } while (0)
 455
 456 #define nfsm_adv(s) \
 457         do { \
 458                 t1 = mtod(md, caddr_t)+md->m_len-dpos; \
 459                 if (t1 >= (s)) { \
 460                         dpos += (s); \
 461                 } else if ((t1 = nfs_adv(&md, &dpos, (s), t1)) != 0) { \
 462                         error = t1; \
 463                         m_freem(mrep); \
 464                         goto nfsmout; \
 465                 } \
 466         } while (0)
 467
 468 #define nfsm_srvmtofh(f) \
 469         do { \
 470                 int fhlen; \
 471                 if (nfsd->nd_flag & ND_NFSV3) { \
 472                         nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 473                         fhlen = fxdr_unsigned(int, *tl); \
 474                         if (fhlen != 0 && fhlen != NFSX_V3FH) { \
 475                                 error = EBADRPC; \
 476                                 nfsm_reply(0); \
 477                         } \
 478                 } else { \
 479                         fhlen = NFSX_V2FH; \
 480                 } \
 481                 if (fhlen != 0) { \
 482                         nfsm_dissect(tl, u_int32_t *, fhlen); \
 483                         bcopy((caddr_t)tl, (caddr_t)(f), fhlen); \
 484                 } else {\
 485                         bzero((caddr_t)(f), NFSX_V3FH); \
 486                 } \
 487         } while (0)
 488
 489 #define nfsm_clget \
 490         do { \
 491                 if (bp >= be) { \
 492                         if (mp == mb) \
 493                                 mp->m_len += bp-bpos; \
 494                         MGET(mp, M_WAIT, MT_DATA); \
 495                         MCLGET(mp, M_WAIT); \
 496                         mp->m_len = NFSMSIZ(mp); \
 497                         mp2->m_next = mp; \
 498                         mp2 = mp; \
 499                         bp = mtod(mp, caddr_t); \
 500                         be = bp+mp->m_len; \
 501                 } \
 502                 tl = (u_int32_t *)bp; \
 503         } while (0)
 504
 505 #define nfsm_srvfillattr(a, f) \
 506         do { \
 507                 nfsm_srvfattr(nfsd, (a), (f)); \
 508         } while (0)
 509
 510 #define nfsm_srvwcc_data(br, b, ar, a) \
 511         do { \
 512                 nfsm_srvwcc(nfsd, (br), (b), (ar), (a), &mb, &bpos); \
 513         } while (0)
 514
 515 #define nfsm_srvpostop_attr(r, a) \
 516         do { \
 517                 nfsm_srvpostopattr(nfsd, (r), (a), &mb, &bpos); \
 518         } while (0)
 519
 520 #define nfsm_srvsattr(a) \
 521         do { \
 522                 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 523                 if (*tl == nfs_true) { \
 524                         nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 525                         (a)->va_mode = nfstov_mode(*tl); \
 526                 } \
 527                 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 528                 if (*tl == nfs_true) { \
 529                         nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 530                         (a)->va_uid = fxdr_unsigned(uid_t, *tl); \
 531                 } \
 532                 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 533                 if (*tl == nfs_true) { \
 534                         nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 535                         (a)->va_gid = fxdr_unsigned(gid_t, *tl); \
 536                 } \
 537                 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 538                 if (*tl == nfs_true) { \
 539                         nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \
 540                         (a)->va_size = fxdr_hyper(tl); \
 541                 } \
 542                 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 543                 switch (fxdr_unsigned(int, *tl)) { \
 544                 case NFSV3SATTRTIME_TOCLIENT: \
 545                         nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \
 546                         fxdr_nfsv3time(tl, &(a)->va_atime); \
 547                         break; \
 548                 case NFSV3SATTRTIME_TOSERVER: \
 549                         getnanotime(&(a)->va_atime); \
 550                         break; \
 551                 }; \
 552                 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \
 553                 switch (fxdr_unsigned(int, *tl)) { \
 554                 case NFSV3SATTRTIME_TOCLIENT: \
 555                         nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \
 556                         fxdr_nfsv3time(tl, &(a)->va_mtime); \
 557                         break; \
 558                 case NFSV3SATTRTIME_TOSERVER: \
 559                         getnanotime(&(a)->va_mtime); \
 560                         break; \
 561                 } \
 562         } while (0)
 563
 564 #endif