nfsm_subs.h revision 1.59
1 /* $NetBSD: nfsm_subs.h,v 1.59 2024/12/07 02:05:55 riastradh Exp $ */ 2 3 /* 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Rick Macklem at The University of Guelph. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)nfsm_subs.h 8.2 (Berkeley) 3/30/95 35 */ 36 37 #ifndef _NFS_NFSM_SUBS_H_ 38 #define _NFS_NFSM_SUBS_H_ 39 40 41 /* 42 * These macros do strange and peculiar things to mbuf chains for 43 * the assistance of the nfs code. To attempt to use them for any 44 * other purpose will be dangerous. (they make weird assumptions) 45 */ 46 47 /* 48 * First define what the actual subs. return 49 */ 50 51 #define M_HASCL(m) ((m)->m_flags & M_EXT) 52 #define NFSMADV(m, s) (m)->m_data += (s) 53 #define NFSMSIZ(m) ((M_HASCL(m)) ? (m)->m_ext.ext_size : \ 54 (((m)->m_flags & M_PKTHDR) ? MHLEN : MLEN)) 55 56 /* 57 * NFSv2 can only handle signed 32bit quantities and some clients 58 * get confused by larger than 16bit block sizes. Limit values 59 * for better compatibility. 60 */ 61 #define NFS_V2CLAMP32(x) ((x) > INT32_MAX ? INT32_MAX : (int32_t)(x)) 62 #define NFS_V2CLAMP16(x) ((x) > INT16_MAX ? INT16_MAX : (int32_t)(x)) 63 64 /* 65 * Now for the macros that do the simple stuff and call the functions 66 * for the hard stuff. 67 * These macros use several vars. declared in nfsm_reqhead and these 68 * vars. must not be used elsewhere unless you are careful not to corrupt 69 * them. The vars. starting with pN and tN (N=1,2,3,..) are temporaries 70 * that may be used so long as the value is not expected to retained 71 * after a macro. 72 * I know, this is kind of dorkey, but it makes the actual op functions 73 * fairly clean and deals with the mess caused by the xdr discriminating 74 * unions. 75 */ 76 77 #define nfsm_build(a,c,s) \ 78 { if ((s) > M_TRAILINGSPACE(mb)) { \ 79 struct mbuf *mb2; \ 80 mb2 = m_get(M_WAIT, MT_DATA); \ 81 MCLAIM(mb2, &nfs_mowner); \ 82 if ((s) > MLEN) \ 83 panic("build > MLEN"); \ 84 mb->m_next = mb2; \ 85 mb = mb2; \ 86 mb->m_len = 0; \ 87 bpos = mtod(mb, char *); \ 88 } \ 89 (a) = (c)(bpos); \ 90 mb->m_len += (s); \ 91 bpos += (s); } 92 93 #define nfsm_aligned(p) ALIGNED_POINTER(p,u_int32_t) 94 95 #define nfsm_dissect(a, c, s) \ 96 { t1 = mtod(md, char *) + md->m_len-dpos; \ 97 if (t1 >= (s) && nfsm_aligned(dpos)) { \ 98 (a) = (c)(dpos); \ 99 dpos += (s); \ 100 } else if ((t1 = nfsm_disct(&md, &dpos, (s), t1, &cp2)) != 0){ \ 101 error = t1; \ 102 m_freem(mrep); \ 103 goto nfsmout; \ 104 } else { \ 105 (a) = (c)cp2; \ 106 } } 107 108 #define nfsm_fhtom(n, v3) \ 109 { if (v3) { \ 110 t2 = nfsm_rndup((n)->n_fhsize) + NFSX_UNSIGNED; \ 111 if (t2 <= M_TRAILINGSPACE(mb)) { \ 112 nfsm_build(tl, u_int32_t *, t2); \ 113 *tl++ = txdr_unsigned((n)->n_fhsize); \ 114 *(tl + ((t2>>2) - 2)) = 0; \ 115 memcpy(tl,(n)->n_fhp, (n)->n_fhsize); \ 116 } else if ((t2 = nfsm_strtmbuf(&mb, &bpos, \ 117 (void *)(n)->n_fhp, (n)->n_fhsize)) != 0) { \ 118 error = t2; \ 119 m_freem(mreq); \ 120 goto nfsmout; \ 121 } \ 122 } else { \ 123 nfsm_build(cp, void *, NFSX_V2FH); \ 124 memcpy(cp, (n)->n_fhp, NFSX_V2FH); \ 125 } } 126 127 #define nfsm_srvfhtom(f, v3) \ 128 { if (v3) { \ 129 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED + \ 130 NFSRVFH_SIZE(f)); \ 131 *tl++ = txdr_unsigned(NFSRVFH_SIZE(f)); \ 132 memcpy(tl, NFSRVFH_DATA(f), NFSRVFH_SIZE(f)); \ 133 } else { \ 134 KASSERT(NFSRVFH_SIZE(f) == NFSX_V2FH); \ 135 nfsm_build(cp, void *, NFSX_V2FH); \ 136 memcpy(cp, NFSRVFH_DATA(f), NFSX_V2FH); \ 137 } } 138 139 #define nfsm_srvpostop_fh(f) \ 140 { nfsm_build(tl, u_int32_t *, \ 141 2 * NFSX_UNSIGNED + NFSRVFH_SIZE(f)); \ 142 *tl++ = nfs_true; \ 143 *tl++ = txdr_unsigned(NFSRVFH_SIZE(f)); \ 144 memcpy(tl, NFSRVFH_DATA(f), NFSRVFH_SIZE(f)); \ 145 } 146 147 /* 148 * nfsm_mtofh: dissect a "resulted obj" part of create-like operations 149 * like mkdir. 150 * 151 * for nfsv3, dissect post_op_fh3 and following post_op_attr. 152 * for nfsv2, dissect fhandle and following fattr. 153 * 154 * d: (IN) the vnode of the parent directory. 155 * v: (OUT) the corresponding vnode (we allocate one if needed) 156 * v3: (IN) true for nfsv3. 157 * f: (OUT) true if we got valid filehandle. always true for nfsv2. 158 */ 159 160 #define nfsm_mtofh(d, v, v3, f) \ 161 { struct nfsnode *ttnp; nfsfh_t *ttfhp; int ttfhsize; \ 162 int hasattr = 0; \ 163 if (v3) { \ 164 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ 165 (f) = fxdr_unsigned(int, *tl); \ 166 } else { \ 167 (f) = 1; \ 168 hasattr = 1; \ 169 } \ 170 if (f) { \ 171 nfsm_getfh(ttfhp, ttfhsize, (v3)); \ 172 if ((t1 = nfs_nget((d)->v_mount, ttfhp, ttfhsize, \ 173 &ttnp)) != 0) { \ 174 error = t1; \ 175 m_freem(mrep); \ 176 goto nfsmout; \ 177 } \ 178 (v) = NFSTOV(ttnp); \ 179 } \ 180 if (v3) { \ 181 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ 182 if (f) \ 183 hasattr = fxdr_unsigned(int, *tl); \ 184 else if (fxdr_unsigned(int, *tl)) \ 185 nfsm_adv(NFSX_V3FATTR); \ 186 } \ 187 if (f && hasattr) \ 188 nfsm_loadattr((v), (struct vattr *)0, 0); \ 189 } 190 191 /* 192 * nfsm_getfh: dissect a filehandle. 193 * 194 * f: (OUT) a filehandle. 195 * s: (OUT) size of the filehandle in bytes. 196 * v3: (IN) true if nfsv3. 197 */ 198 199 #define nfsm_getfh(f, s, v3) \ 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)); } 211 212 #define nfsm_loadattr(v, a, flags) \ 213 { struct vnode *ttvp = (v); \ 214 if ((t1 = nfsm_loadattrcache(&ttvp, &md, &dpos, (a), (flags))) \ 215 != 0) { \ 216 error = t1; \ 217 m_freem(mrep); \ 218 goto nfsmout; \ 219 } \ 220 (v) = ttvp; } 221 222 /* 223 * nfsm_postop_attr: process nfsv3 post_op_attr 224 * 225 * dissect post_op_attr. if we got a one, 226 * call nfsm_loadattrcache to update attribute cache. 227 * 228 * v: (IN/OUT) the corresponding vnode 229 * f: (OUT) true if we got valid attribute 230 * flags: (IN) flags for nfsm_loadattrcache 231 */ 232 233 #define nfsm_postop_attr(v, f, flags) \ 234 { struct vnode *ttvp = (v); \ 235 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ 236 if (((f) = fxdr_unsigned(int, *tl)) != 0) { \ 237 if ((t1 = nfsm_loadattrcache(&ttvp, &md, &dpos, \ 238 (struct vattr *)0, (flags))) != 0) { \ 239 error = t1; \ 240 (f) = 0; \ 241 m_freem(mrep); \ 242 goto nfsmout; \ 243 } \ 244 (v) = ttvp; \ 245 } } 246 247 /* 248 * nfsm_wcc_data: process nfsv3 wcc_data 249 * 250 * dissect pre_op_attr and then let nfsm_postop_attr dissect post_op_attr. 251 * 252 * v: (IN/OUT) the corresponding vnode 253 * f: (IN/OUT) 254 * NFSV3_WCCRATTR return true if we got valid post_op_attr. 255 * NFSV3_WCCCHK return true if pre_op_attr's mtime is the same 256 * as our n_mtime. (ie. our cache isn't stale.) 257 * flags: (IN) flags for nfsm_loadattrcache 258 * docheck: (IN) true if timestamp change is expected 259 */ 260 261 /* Used as (f) for nfsm_wcc_data() */ 262 #define NFSV3_WCCRATTR 0 263 #define NFSV3_WCCCHK 1 264 265 #define nfsm_wcc_data(v, f, flags, docheck) \ 266 { int ttattrf, ttretf = 0, renewctime = 0, renewnctime = 0; \ 267 struct timespec ctime, mtime; \ 268 struct nfsnode *nfsp = VTONFS(v); \ 269 bool haspreopattr = false; \ 270 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ 271 if (*tl == nfs_true) { \ 272 haspreopattr = true; \ 273 nfsm_dissect(tl, u_int32_t *, 6 * NFSX_UNSIGNED); \ 274 fxdr_nfsv3time(tl + 2, &mtime); \ 275 fxdr_nfsv3time(tl + 4, &ctime); \ 276 if (nfsp->n_ctime == ctime.tv_sec) \ 277 renewctime = 1; \ 278 if ((v)->v_type == VDIR) { \ 279 if (timespeccmp(&nfsp->n_nctime, &ctime, ==)) \ 280 renewnctime = 1; \ 281 } \ 282 if (f) { \ 283 ttretf = timespeccmp(&nfsp->n_mtime, &mtime, ==);\ 284 } \ 285 } \ 286 nfsm_postop_attr((v), ttattrf, (flags)); \ 287 nfsp = VTONFS(v); \ 288 if (ttattrf) { \ 289 if (haspreopattr && \ 290 nfs_check_wccdata(nfsp, &ctime, &mtime, (docheck))) \ 291 renewctime = renewnctime = ttretf = 0; \ 292 if (renewctime) \ 293 nfsp->n_ctime = nfsp->n_vattr->va_ctime.tv_sec; \ 294 if (renewnctime) \ 295 nfsp->n_nctime = nfsp->n_vattr->va_ctime; \ 296 } \ 297 if (f) { \ 298 (f) = ttretf; \ 299 } else { \ 300 (f) = ttattrf; \ 301 } } 302 303 /* If full is true, set all fields, otherwise just set mode and time fields */ 304 #define nfsm_v3attrbuild(a, full) \ 305 { if ((a)->va_mode != (mode_t)VNOVAL) { \ 306 nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \ 307 *tl++ = nfs_true; \ 308 *tl = txdr_unsigned((a)->va_mode); \ 309 } else { \ 310 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \ 311 *tl = nfs_false; \ 312 } \ 313 if ((full) && (a)->va_uid != (uid_t)VNOVAL) { \ 314 nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \ 315 *tl++ = nfs_true; \ 316 *tl = txdr_unsigned((a)->va_uid); \ 317 } else { \ 318 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \ 319 *tl = nfs_false; \ 320 } \ 321 if ((full) && (a)->va_gid != (gid_t)VNOVAL) { \ 322 nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \ 323 *tl++ = nfs_true; \ 324 *tl = txdr_unsigned((a)->va_gid); \ 325 } else { \ 326 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \ 327 *tl = nfs_false; \ 328 } \ 329 if ((full) && (a)->va_size != VNOVAL) { \ 330 nfsm_build(tl, u_int32_t *, 3 * NFSX_UNSIGNED); \ 331 *tl++ = nfs_true; \ 332 txdr_hyper((a)->va_size, tl); \ 333 } else { \ 334 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \ 335 *tl = nfs_false; \ 336 } \ 337 if ((a)->va_atime.tv_sec != VNOVAL) { \ 338 if ((a)->va_atime.tv_sec != time_second) { \ 339 nfsm_build(tl, u_int32_t *, 3 * NFSX_UNSIGNED); \ 340 *tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT); \ 341 txdr_nfsv3time(&(a)->va_atime, tl); \ 342 } else { \ 343 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \ 344 *tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER); \ 345 } \ 346 } else { \ 347 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \ 348 *tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE); \ 349 } \ 350 if ((a)->va_mtime.tv_sec != VNOVAL) { \ 351 if ((a)->va_mtime.tv_sec != time_second) { \ 352 nfsm_build(tl, u_int32_t *, 3 * NFSX_UNSIGNED); \ 353 *tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT); \ 354 txdr_nfsv3time(&(a)->va_mtime, tl); \ 355 } else { \ 356 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \ 357 *tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER); \ 358 } \ 359 } else { \ 360 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); \ 361 *tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE); \ 362 } \ 363 } 364 365 366 #define nfsm_strsiz(s,m) \ 367 { nfsm_dissect(tl,uint32_t *,NFSX_UNSIGNED); \ 368 if ((uint32_t)((s) = fxdr_unsigned(uint32_t,*tl)) > (m)) { \ 369 m_freem(mrep); \ 370 error = EBADRPC; \ 371 goto nfsmout; \ 372 } } 373 374 #define nfsm_srvnamesiz(s) \ 375 { nfsm_dissect(tl,uint32_t *,NFSX_UNSIGNED); \ 376 if ((uint32_t)((s) = fxdr_unsigned(uint32_t,*tl)) > \ 377 NFS_MAXNAMLEN) \ 378 error = NFSERR_NAMETOL; \ 379 if (error) \ 380 nfsm_reply(0); \ 381 } 382 383 #define nfsm_mtouio(p,s) \ 384 if ((s) > 0 && \ 385 (t1 = nfsm_mbuftouio(&md,(p),(s),&dpos)) != 0) { \ 386 error = t1; \ 387 m_freem(mrep); \ 388 goto nfsmout; \ 389 } 390 391 #define nfsm_uiotom(p,s) \ 392 if ((t1 = nfsm_uiotombuf((p),&mb,(s),&bpos)) != 0) { \ 393 error = t1; \ 394 m_freem(mreq); \ 395 goto nfsmout; \ 396 } 397 398 #define nfsm_reqhead(n,a,s) \ 399 mb = mreq = nfsm_reqh((n),(a),(s),&bpos) 400 401 #define nfsm_reqdone m_freem(mrep); \ 402 nfsmout: 403 404 #define nfsm_rndup(a) (((a)+3)&(~0x3)) 405 #define nfsm_padlen(a) (nfsm_rndup(a) - (a)) 406 407 #define nfsm_request1(v, t, p, c, rexmitp) \ 408 if ((error = nfs_request((v), mreq, (t), (p), \ 409 (c), &mrep, &md, &dpos, (rexmitp))) != 0) { \ 410 if (error & NFSERR_RETERR) \ 411 error &= ~NFSERR_RETERR; \ 412 else \ 413 goto nfsmout; \ 414 } 415 416 #define nfsm_request(v, t, p, c) nfsm_request1((v), (t), (p), (c), NULL) 417 418 #define nfsm_strtom(a,s,m) \ 419 if ((s) > (m)) { \ 420 m_freem(mreq); \ 421 error = ENAMETOOLONG; \ 422 goto nfsmout; \ 423 } \ 424 t2 = nfsm_rndup(s)+NFSX_UNSIGNED; \ 425 if (t2 <= M_TRAILINGSPACE(mb)) { \ 426 nfsm_build(tl,u_int32_t *,t2); \ 427 *tl++ = txdr_unsigned(s); \ 428 *(tl+((t2>>2)-2)) = 0; \ 429 memcpy(tl, (const char *)(a), (s)); \ 430 } else if ((t2 = nfsm_strtmbuf(&mb, &bpos, (a), (s))) != 0) { \ 431 error = t2; \ 432 m_freem(mreq); \ 433 goto nfsmout; \ 434 } 435 436 #define nfsm_srvdone \ 437 nfsmout: \ 438 return(error) 439 440 #define nfsm_reply(s) \ 441 { \ 442 nfsd->nd_repstat = error; \ 443 if (error && !(nfsd->nd_flag & ND_NFSV3)) \ 444 (void) nfs_rephead(0, nfsd, slp, error, cache, &frev, \ 445 mrq, &mb, &bpos); \ 446 else \ 447 (void) nfs_rephead((s), nfsd, slp, error, cache, &frev, \ 448 mrq, &mb, &bpos); \ 449 m_freem(mrep); \ 450 mrep = NULL; \ 451 mreq = *mrq; \ 452 if (error && (!(nfsd->nd_flag & ND_NFSV3) || \ 453 error == EBADRPC)) {\ 454 error = 0; \ 455 goto nfsmout; \ 456 } \ 457 } 458 459 #define nfsm_writereply(s, v3) \ 460 { \ 461 nfsd->nd_repstat = error; \ 462 if (error && !(v3)) \ 463 (void) nfs_rephead(0, nfsd, slp, error, cache, &frev, \ 464 &mreq, &mb, &bpos); \ 465 else \ 466 (void) nfs_rephead((s), nfsd, slp, error, cache, &frev, \ 467 &mreq, &mb, &bpos); \ 468 } 469 470 #define nfsm_adv(s) \ 471 { t1 = mtod(md, char *) + md->m_len - dpos; \ 472 if (t1 >= (s)) { \ 473 dpos += (s); \ 474 } else if ((t1 = nfs_adv(&md, &dpos, (s), t1)) != 0) { \ 475 error = t1; \ 476 m_freem(mrep); \ 477 goto nfsmout; \ 478 } } 479 480 #define nfsm_srvmtofh(nsfh) \ 481 { uint32_t fhlen = NFSX_V3FH; \ 482 if (nfsd->nd_flag & ND_NFSV3) { \ 483 nfsm_dissect(tl, uint32_t *, NFSX_UNSIGNED); \ 484 fhlen = fxdr_unsigned(uint32_t, *tl); \ 485 CTASSERT(NFSX_V3FHMAX <= FHANDLE_SIZE_MAX); \ 486 if (fhlen > NFSX_V3FHMAX || \ 487 (fhlen < FHANDLE_SIZE_MIN && fhlen > 0)) { \ 488 error = EBADRPC; \ 489 nfsm_reply(0); \ 490 } \ 491 } else { \ 492 CTASSERT(NFSX_V2FH >= FHANDLE_SIZE_MIN); \ 493 fhlen = NFSX_V2FH; \ 494 } \ 495 (nsfh)->nsfh_size = fhlen; \ 496 if (fhlen != 0) { \ 497 KASSERT(fhlen >= FHANDLE_SIZE_MIN); \ 498 KASSERT(fhlen <= FHANDLE_SIZE_MAX); \ 499 nfsm_dissect(tl, u_int32_t *, fhlen); \ 500 memcpy(NFSRVFH_DATA(nsfh), tl, fhlen); \ 501 } \ 502 } 503 504 #define nfsm_clget \ 505 if (bp >= be) { \ 506 if (mp == mb) \ 507 mp->m_len += bp-bpos; \ 508 mp = m_get(M_WAIT, MT_DATA); \ 509 MCLAIM(mp, &nfs_mowner); \ 510 m_clget(mp, M_WAIT); \ 511 mp->m_len = NFSMSIZ(mp); \ 512 mp2->m_next = mp; \ 513 mp2 = mp; \ 514 bp = mtod(mp, char *); \ 515 be = bp+mp->m_len; \ 516 } \ 517 tl = (u_int32_t *)bp 518 519 #define nfsm_srvfillattr(a, f) \ 520 nfsm_srvfattr(nfsd, (a), (f)) 521 522 #define nfsm_srvwcc_data(br, b, ar, a) \ 523 nfsm_srvwcc(nfsd, (br), (b), (ar), (a), &mb, &bpos) 524 525 #define nfsm_srvpostop_attr(r, a) \ 526 nfsm_srvpostopattr(nfsd, (r), (a), &mb, &bpos) 527 528 #define nfsm_srvsattr(a) \ 529 { \ 530 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ 531 if (*tl == nfs_true) { \ 532 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ 533 (a)->va_mode = nfstov_mode(*tl); \ 534 } \ 535 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ 536 if (*tl == nfs_true) { \ 537 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ 538 (a)->va_uid = fxdr_unsigned(uid_t, *tl); \ 539 } \ 540 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ 541 if (*tl == nfs_true) { \ 542 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ 543 (a)->va_gid = fxdr_unsigned(gid_t, *tl); \ 544 } \ 545 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ 546 if (*tl == nfs_true) { \ 547 nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \ 548 (a)->va_size = fxdr_hyper(tl); \ 549 } \ 550 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ 551 switch (fxdr_unsigned(int, *tl)) { \ 552 case NFSV3SATTRTIME_TOCLIENT: \ 553 nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \ 554 fxdr_nfsv3time(tl, &(a)->va_atime); \ 555 break; \ 556 case NFSV3SATTRTIME_TOSERVER: \ 557 getnanotime(&(a)->va_atime); \ 558 (a)->va_vaflags |= VA_UTIMES_NULL; \ 559 break; \ 560 }; \ 561 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); \ 562 switch (fxdr_unsigned(int, *tl)) { \ 563 case NFSV3SATTRTIME_TOCLIENT: \ 564 nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); \ 565 fxdr_nfsv3time(tl, &(a)->va_mtime); \ 566 (a)->va_vaflags &= ~VA_UTIMES_NULL; \ 567 break; \ 568 case NFSV3SATTRTIME_TOSERVER: \ 569 getnanotime(&(a)->va_mtime); \ 570 (a)->va_vaflags |= VA_UTIMES_NULL; \ 571 break; \ 572 }; } 573 574 #endif /* _NFS_NFSM_SUBS_H_ */ 575
Indexes created Thu Oct 02 01:09:59 GMT 2025