nfs_vnops.c revision 1.199
1 /* $NetBSD: nfs_vnops.c,v 1.199 2004/05/17 12:17:18 yamt 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 * @(#)nfs_vnops.c 8.19 (Berkeley) 7/31/95 35 */ 36 37 /* 38 * vnode op calls for Sun NFS version 2 and 3 39 */ 40 41 #include <sys/cdefs.h> 42 __KERNEL_RCSID(0, "$NetBSD: nfs_vnops.c,v 1.199 2004/05/17 12:17:18 yamt Exp $"); 43 44 #include "opt_nfs.h" 45 #include "opt_uvmhist.h" 46 47 #include <sys/param.h> 48 #include <sys/proc.h> 49 #include <sys/kernel.h> 50 #include <sys/systm.h> 51 #include <sys/resourcevar.h> 52 #include <sys/proc.h> 53 #include <sys/mount.h> 54 #include <sys/buf.h> 55 #include <sys/malloc.h> 56 #include <sys/mbuf.h> 57 #include <sys/namei.h> 58 #include <sys/vnode.h> 59 #include <sys/dirent.h> 60 #include <sys/fcntl.h> 61 #include <sys/hash.h> 62 #include <sys/lockf.h> 63 #include <sys/stat.h> 64 #include <sys/unistd.h> 65 66 #include <uvm/uvm_extern.h> 67 #include <uvm/uvm.h> 68 69 #include <miscfs/fifofs/fifo.h> 70 #include <miscfs/genfs/genfs.h> 71 #include <miscfs/specfs/specdev.h> 72 73 #include <nfs/rpcv2.h> 74 #include <nfs/nfsproto.h> 75 #include <nfs/nfs.h> 76 #include <nfs/nfsnode.h> 77 #include <nfs/nfsmount.h> 78 #include <nfs/xdr_subs.h> 79 #include <nfs/nfsm_subs.h> 80 #include <nfs/nqnfs.h> 81 #include <nfs/nfs_var.h> 82 83 #include <net/if.h> 84 #include <netinet/in.h> 85 #include <netinet/in_var.h> 86 87 /* 88 * Global vfs data structures for nfs 89 */ 90 int (**nfsv2_vnodeop_p) __P((void *)); 91 const struct vnodeopv_entry_desc nfsv2_vnodeop_entries[] = { 92 { &vop_default_desc, vn_default_error }, 93 { &vop_lookup_desc, nfs_lookup }, /* lookup */ 94 { &vop_create_desc, nfs_create }, /* create */ 95 { &vop_mknod_desc, nfs_mknod }, /* mknod */ 96 { &vop_open_desc, nfs_open }, /* open */ 97 { &vop_close_desc, nfs_close }, /* close */ 98 { &vop_access_desc, nfs_access }, /* access */ 99 { &vop_getattr_desc, nfs_getattr }, /* getattr */ 100 { &vop_setattr_desc, nfs_setattr }, /* setattr */ 101 { &vop_read_desc, nfs_read }, /* read */ 102 { &vop_write_desc, nfs_write }, /* write */ 103 { &vop_lease_desc, nfs_lease_check }, /* lease */ 104 { &vop_fcntl_desc, genfs_fcntl }, /* fcntl */ 105 { &vop_ioctl_desc, nfs_ioctl }, /* ioctl */ 106 { &vop_poll_desc, nfs_poll }, /* poll */ 107 { &vop_kqfilter_desc, nfs_kqfilter }, /* kqfilter */ 108 { &vop_revoke_desc, nfs_revoke }, /* revoke */ 109 { &vop_mmap_desc, nfs_mmap }, /* mmap */ 110 { &vop_fsync_desc, nfs_fsync }, /* fsync */ 111 { &vop_seek_desc, nfs_seek }, /* seek */ 112 { &vop_remove_desc, nfs_remove }, /* remove */ 113 { &vop_link_desc, nfs_link }, /* link */ 114 { &vop_rename_desc, nfs_rename }, /* rename */ 115 { &vop_mkdir_desc, nfs_mkdir }, /* mkdir */ 116 { &vop_rmdir_desc, nfs_rmdir }, /* rmdir */ 117 { &vop_symlink_desc, nfs_symlink }, /* symlink */ 118 { &vop_readdir_desc, nfs_readdir }, /* readdir */ 119 { &vop_readlink_desc, nfs_readlink }, /* readlink */ 120 { &vop_abortop_desc, nfs_abortop }, /* abortop */ 121 { &vop_inactive_desc, nfs_inactive }, /* inactive */ 122 { &vop_reclaim_desc, nfs_reclaim }, /* reclaim */ 123 { &vop_lock_desc, nfs_lock }, /* lock */ 124 { &vop_unlock_desc, nfs_unlock }, /* unlock */ 125 { &vop_bmap_desc, nfs_bmap }, /* bmap */ 126 { &vop_strategy_desc, nfs_strategy }, /* strategy */ 127 { &vop_print_desc, nfs_print }, /* print */ 128 { &vop_islocked_desc, nfs_islocked }, /* islocked */ 129 { &vop_pathconf_desc, nfs_pathconf }, /* pathconf */ 130 { &vop_advlock_desc, nfs_advlock }, /* advlock */ 131 { &vop_blkatoff_desc, nfs_blkatoff }, /* blkatoff */ 132 { &vop_valloc_desc, nfs_valloc }, /* valloc */ 133 { &vop_reallocblks_desc, nfs_reallocblks }, /* reallocblks */ 134 { &vop_vfree_desc, nfs_vfree }, /* vfree */ 135 { &vop_truncate_desc, nfs_truncate }, /* truncate */ 136 { &vop_update_desc, nfs_update }, /* update */ 137 { &vop_bwrite_desc, nfs_bwrite }, /* bwrite */ 138 { &vop_getpages_desc, nfs_getpages }, /* getpages */ 139 { &vop_putpages_desc, genfs_putpages }, /* putpages */ 140 { NULL, NULL } 141 }; 142 const struct vnodeopv_desc nfsv2_vnodeop_opv_desc = 143 { &nfsv2_vnodeop_p, nfsv2_vnodeop_entries }; 144 145 /* 146 * Special device vnode ops 147 */ 148 int (**spec_nfsv2nodeop_p) __P((void *)); 149 const struct vnodeopv_entry_desc spec_nfsv2nodeop_entries[] = { 150 { &vop_default_desc, vn_default_error }, 151 { &vop_lookup_desc, spec_lookup }, /* lookup */ 152 { &vop_create_desc, spec_create }, /* create */ 153 { &vop_mknod_desc, spec_mknod }, /* mknod */ 154 { &vop_open_desc, spec_open }, /* open */ 155 { &vop_close_desc, nfsspec_close }, /* close */ 156 { &vop_access_desc, nfsspec_access }, /* access */ 157 { &vop_getattr_desc, nfs_getattr }, /* getattr */ 158 { &vop_setattr_desc, nfs_setattr }, /* setattr */ 159 { &vop_read_desc, nfsspec_read }, /* read */ 160 { &vop_write_desc, nfsspec_write }, /* write */ 161 { &vop_lease_desc, spec_lease_check }, /* lease */ 162 { &vop_fcntl_desc, genfs_fcntl }, /* fcntl */ 163 { &vop_ioctl_desc, spec_ioctl }, /* ioctl */ 164 { &vop_poll_desc, spec_poll }, /* poll */ 165 { &vop_kqfilter_desc, spec_kqfilter }, /* kqfilter */ 166 { &vop_revoke_desc, spec_revoke }, /* revoke */ 167 { &vop_mmap_desc, spec_mmap }, /* mmap */ 168 { &vop_fsync_desc, spec_fsync }, /* fsync */ 169 { &vop_seek_desc, spec_seek }, /* seek */ 170 { &vop_remove_desc, spec_remove }, /* remove */ 171 { &vop_link_desc, spec_link }, /* link */ 172 { &vop_rename_desc, spec_rename }, /* rename */ 173 { &vop_mkdir_desc, spec_mkdir }, /* mkdir */ 174 { &vop_rmdir_desc, spec_rmdir }, /* rmdir */ 175 { &vop_symlink_desc, spec_symlink }, /* symlink */ 176 { &vop_readdir_desc, spec_readdir }, /* readdir */ 177 { &vop_readlink_desc, spec_readlink }, /* readlink */ 178 { &vop_abortop_desc, spec_abortop }, /* abortop */ 179 { &vop_inactive_desc, nfs_inactive }, /* inactive */ 180 { &vop_reclaim_desc, nfs_reclaim }, /* reclaim */ 181 { &vop_lock_desc, nfs_lock }, /* lock */ 182 { &vop_unlock_desc, nfs_unlock }, /* unlock */ 183 { &vop_bmap_desc, spec_bmap }, /* bmap */ 184 { &vop_strategy_desc, spec_strategy }, /* strategy */ 185 { &vop_print_desc, nfs_print }, /* print */ 186 { &vop_islocked_desc, nfs_islocked }, /* islocked */ 187 { &vop_pathconf_desc, spec_pathconf }, /* pathconf */ 188 { &vop_advlock_desc, spec_advlock }, /* advlock */ 189 { &vop_blkatoff_desc, spec_blkatoff }, /* blkatoff */ 190 { &vop_valloc_desc, spec_valloc }, /* valloc */ 191 { &vop_reallocblks_desc, spec_reallocblks }, /* reallocblks */ 192 { &vop_vfree_desc, spec_vfree }, /* vfree */ 193 { &vop_truncate_desc, spec_truncate }, /* truncate */ 194 { &vop_update_desc, nfs_update }, /* update */ 195 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 196 { &vop_getpages_desc, spec_getpages }, /* getpages */ 197 { &vop_putpages_desc, spec_putpages }, /* putpages */ 198 { NULL, NULL } 199 }; 200 const struct vnodeopv_desc spec_nfsv2nodeop_opv_desc = 201 { &spec_nfsv2nodeop_p, spec_nfsv2nodeop_entries }; 202 203 int (**fifo_nfsv2nodeop_p) __P((void *)); 204 const struct vnodeopv_entry_desc fifo_nfsv2nodeop_entries[] = { 205 { &vop_default_desc, vn_default_error }, 206 { &vop_lookup_desc, fifo_lookup }, /* lookup */ 207 { &vop_create_desc, fifo_create }, /* create */ 208 { &vop_mknod_desc, fifo_mknod }, /* mknod */ 209 { &vop_open_desc, fifo_open }, /* open */ 210 { &vop_close_desc, nfsfifo_close }, /* close */ 211 { &vop_access_desc, nfsspec_access }, /* access */ 212 { &vop_getattr_desc, nfs_getattr }, /* getattr */ 213 { &vop_setattr_desc, nfs_setattr }, /* setattr */ 214 { &vop_read_desc, nfsfifo_read }, /* read */ 215 { &vop_write_desc, nfsfifo_write }, /* write */ 216 { &vop_lease_desc, fifo_lease_check }, /* lease */ 217 { &vop_fcntl_desc, genfs_fcntl }, /* fcntl */ 218 { &vop_ioctl_desc, fifo_ioctl }, /* ioctl */ 219 { &vop_poll_desc, fifo_poll }, /* poll */ 220 { &vop_kqfilter_desc, fifo_kqfilter }, /* kqfilter */ 221 { &vop_revoke_desc, fifo_revoke }, /* revoke */ 222 { &vop_mmap_desc, fifo_mmap }, /* mmap */ 223 { &vop_fsync_desc, nfs_fsync }, /* fsync */ 224 { &vop_seek_desc, fifo_seek }, /* seek */ 225 { &vop_remove_desc, fifo_remove }, /* remove */ 226 { &vop_link_desc, fifo_link }, /* link */ 227 { &vop_rename_desc, fifo_rename }, /* rename */ 228 { &vop_mkdir_desc, fifo_mkdir }, /* mkdir */ 229 { &vop_rmdir_desc, fifo_rmdir }, /* rmdir */ 230 { &vop_symlink_desc, fifo_symlink }, /* symlink */ 231 { &vop_readdir_desc, fifo_readdir }, /* readdir */ 232 { &vop_readlink_desc, fifo_readlink }, /* readlink */ 233 { &vop_abortop_desc, fifo_abortop }, /* abortop */ 234 { &vop_inactive_desc, nfs_inactive }, /* inactive */ 235 { &vop_reclaim_desc, nfs_reclaim }, /* reclaim */ 236 { &vop_lock_desc, nfs_lock }, /* lock */ 237 { &vop_unlock_desc, nfs_unlock }, /* unlock */ 238 { &vop_bmap_desc, fifo_bmap }, /* bmap */ 239 { &vop_strategy_desc, genfs_badop }, /* strategy */ 240 { &vop_print_desc, nfs_print }, /* print */ 241 { &vop_islocked_desc, nfs_islocked }, /* islocked */ 242 { &vop_pathconf_desc, fifo_pathconf }, /* pathconf */ 243 { &vop_advlock_desc, fifo_advlock }, /* advlock */ 244 { &vop_blkatoff_desc, fifo_blkatoff }, /* blkatoff */ 245 { &vop_valloc_desc, fifo_valloc }, /* valloc */ 246 { &vop_reallocblks_desc, fifo_reallocblks }, /* reallocblks */ 247 { &vop_vfree_desc, fifo_vfree }, /* vfree */ 248 { &vop_truncate_desc, fifo_truncate }, /* truncate */ 249 { &vop_update_desc, nfs_update }, /* update */ 250 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 251 { &vop_putpages_desc, fifo_putpages }, /* putpages */ 252 { NULL, NULL } 253 }; 254 const struct vnodeopv_desc fifo_nfsv2nodeop_opv_desc = 255 { &fifo_nfsv2nodeop_p, fifo_nfsv2nodeop_entries }; 256 257 static void nfs_writerpc_extfree(struct mbuf *, caddr_t, size_t, void *); 258 259 /* 260 * Global variables 261 */ 262 extern u_int32_t nfs_true, nfs_false; 263 extern u_int32_t nfs_xdrneg1; 264 extern const nfstype nfsv3_type[9]; 265 266 int nfs_numasync = 0; 267 #define DIRHDSIZ (sizeof (struct dirent) - (MAXNAMLEN + 1)) 268 269 static void nfs_cache_enter(struct vnode *, struct vnode *, 270 struct componentname *); 271 272 static void 273 nfs_cache_enter(struct vnode *dvp, struct vnode *vp, 274 struct componentname *cnp) 275 { 276 277 if (vp != NULL) { 278 struct nfsnode *np = VTONFS(vp); 279 280 np->n_ctime = np->n_vattr->va_ctime.tv_sec; 281 } else { 282 struct nfsnode *dnp = VTONFS(dvp); 283 284 if (!timespecisset(&dnp->n_nctime)) 285 dnp->n_nctime = dnp->n_vattr->va_mtime; 286 } 287 288 cache_enter(dvp, vp, cnp); 289 } 290 291 /* 292 * nfs null call from vfs. 293 */ 294 int 295 nfs_null(vp, cred, procp) 296 struct vnode *vp; 297 struct ucred *cred; 298 struct proc *procp; 299 { 300 caddr_t bpos, dpos; 301 int error = 0; 302 struct mbuf *mreq, *mrep, *md, *mb; 303 struct nfsnode *np = VTONFS(vp); 304 305 nfsm_reqhead(np, NFSPROC_NULL, 0); 306 nfsm_request(np, NFSPROC_NULL, procp, cred); 307 nfsm_reqdone; 308 return (error); 309 } 310 311 /* 312 * nfs access vnode op. 313 * For nfs version 2, just return ok. File accesses may fail later. 314 * For nfs version 3, use the access rpc to check accessibility. If file modes 315 * are changed on the server, accesses might still fail later. 316 */ 317 int 318 nfs_access(v) 319 void *v; 320 { 321 struct vop_access_args /* { 322 struct vnode *a_vp; 323 int a_mode; 324 struct ucred *a_cred; 325 struct proc *a_p; 326 } */ *ap = v; 327 struct vnode *vp = ap->a_vp; 328 u_int32_t *tl; 329 caddr_t cp; 330 int32_t t1, t2; 331 caddr_t bpos, dpos, cp2; 332 int error = 0, attrflag, cachevalid; 333 struct mbuf *mreq, *mrep, *md, *mb; 334 u_int32_t mode, rmode; 335 const int v3 = NFS_ISV3(vp); 336 struct nfsnode *np = VTONFS(vp); 337 338 cachevalid = (np->n_accstamp != -1 && 339 (time.tv_sec - np->n_accstamp) < NFS_ATTRTIMEO(np) && 340 np->n_accuid == ap->a_cred->cr_uid); 341 342 /* 343 * Check access cache first. If this request has been made for this 344 * uid shortly before, use the cached result. 345 */ 346 if (cachevalid) { 347 if (!np->n_accerror) { 348 if ((np->n_accmode & ap->a_mode) == ap->a_mode) 349 return np->n_accerror; 350 } else if ((np->n_accmode & ap->a_mode) == np->n_accmode) 351 return np->n_accerror; 352 } 353 354 /* 355 * For nfs v3, do an access rpc, otherwise you are stuck emulating 356 * ufs_access() locally using the vattr. This may not be correct, 357 * since the server may apply other access criteria such as 358 * client uid-->server uid mapping that we do not know about, but 359 * this is better than just returning anything that is lying about 360 * in the cache. 361 */ 362 if (v3) { 363 nfsstats.rpccnt[NFSPROC_ACCESS]++; 364 nfsm_reqhead(np, NFSPROC_ACCESS, NFSX_FH(v3) + NFSX_UNSIGNED); 365 nfsm_fhtom(np, v3); 366 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); 367 if (ap->a_mode & VREAD) 368 mode = NFSV3ACCESS_READ; 369 else 370 mode = 0; 371 if (vp->v_type != VDIR) { 372 if (ap->a_mode & VWRITE) 373 mode |= (NFSV3ACCESS_MODIFY | NFSV3ACCESS_EXTEND); 374 if (ap->a_mode & VEXEC) 375 mode |= NFSV3ACCESS_EXECUTE; 376 } else { 377 if (ap->a_mode & VWRITE) 378 mode |= (NFSV3ACCESS_MODIFY | NFSV3ACCESS_EXTEND | 379 NFSV3ACCESS_DELETE); 380 if (ap->a_mode & VEXEC) 381 mode |= NFSV3ACCESS_LOOKUP; 382 } 383 *tl = txdr_unsigned(mode); 384 nfsm_request(np, NFSPROC_ACCESS, ap->a_p, ap->a_cred); 385 nfsm_postop_attr(vp, attrflag, 0); 386 if (!error) { 387 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); 388 rmode = fxdr_unsigned(u_int32_t, *tl); 389 /* 390 * The NFS V3 spec does not clarify whether or not 391 * the returned access bits can be a superset of 392 * the ones requested, so... 393 */ 394 if ((rmode & mode) != mode) 395 error = EACCES; 396 } 397 nfsm_reqdone; 398 } else 399 return (nfsspec_access(ap)); 400 /* 401 * Disallow write attempts on filesystems mounted read-only; 402 * unless the file is a socket, fifo, or a block or character 403 * device resident on the filesystem. 404 */ 405 if (!error && (ap->a_mode & VWRITE) && 406 (vp->v_mount->mnt_flag & MNT_RDONLY)) { 407 switch (vp->v_type) { 408 case VREG: 409 case VDIR: 410 case VLNK: 411 error = EROFS; 412 default: 413 break; 414 } 415 } 416 417 if (!error || error == EACCES) { 418 /* 419 * If we got the same result as for a previous, 420 * different request, OR it in. Don't update 421 * the timestamp in that case. 422 */ 423 if (cachevalid && np->n_accstamp != -1 && 424 error == np->n_accerror) { 425 if (!error) 426 np->n_accmode |= ap->a_mode; 427 else if ((np->n_accmode & ap->a_mode) == ap->a_mode) 428 np->n_accmode = ap->a_mode; 429 } else { 430 np->n_accstamp = time.tv_sec; 431 np->n_accuid = ap->a_cred->cr_uid; 432 np->n_accmode = ap->a_mode; 433 np->n_accerror = error; 434 } 435 } 436 437 return (error); 438 } 439 440 /* 441 * nfs open vnode op 442 * Check to see if the type is ok 443 * and that deletion is not in progress. 444 * For paged in text files, you will need to flush the page cache 445 * if consistency is lost. 446 */ 447 /* ARGSUSED */ 448 int 449 nfs_open(v) 450 void *v; 451 { 452 struct vop_open_args /* { 453 struct vnode *a_vp; 454 int a_mode; 455 struct ucred *a_cred; 456 struct proc *a_p; 457 } */ *ap = v; 458 struct vnode *vp = ap->a_vp; 459 struct nfsnode *np = VTONFS(vp); 460 struct nfsmount *nmp = VFSTONFS(vp->v_mount); 461 struct vattr vattr; 462 int error; 463 464 if (vp->v_type != VREG && vp->v_type != VDIR && vp->v_type != VLNK) { 465 return (EACCES); 466 } 467 468 if (ap->a_mode & FREAD) { 469 if (np->n_rcred != NULL) 470 crfree(np->n_rcred); 471 np->n_rcred = ap->a_cred; 472 crhold(np->n_rcred); 473 } 474 if (ap->a_mode & FWRITE) { 475 if (np->n_wcred != NULL) 476 crfree(np->n_wcred); 477 np->n_wcred = ap->a_cred; 478 crhold(np->n_wcred); 479 } 480 481 #ifndef NFS_V2_ONLY 482 /* 483 * Get a valid lease. If cached data is stale, flush it. 484 */ 485 if (nmp->nm_flag & NFSMNT_NQNFS) { 486 if (NQNFS_CKINVALID(vp, np, ND_READ)) { 487 do { 488 error = nqnfs_getlease(vp, ND_READ, ap->a_cred, 489 ap->a_p); 490 } while (error == NQNFS_EXPIRED); 491 if (error) 492 return (error); 493 if (np->n_lrev != np->n_brev || 494 (np->n_flag & NQNFSNONCACHE)) { 495 if ((error = nfs_vinvalbuf(vp, V_SAVE, ap->a_cred, 496 ap->a_p, 1)) == EINTR) 497 return (error); 498 np->n_brev = np->n_lrev; 499 } 500 } 501 } else 502 #endif 503 { 504 if (np->n_flag & NMODIFIED) { 505 if ((error = nfs_vinvalbuf(vp, V_SAVE, ap->a_cred, 506 ap->a_p, 1)) == EINTR) 507 return (error); 508 NFS_INVALIDATE_ATTRCACHE(np); 509 if (vp->v_type == VDIR) { 510 nfs_invaldircache(vp, 0); 511 np->n_direofoffset = 0; 512 } 513 error = VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_p); 514 if (error) 515 return (error); 516 np->n_mtime = vattr.va_mtime; 517 } else { 518 error = VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_p); 519 if (error) 520 return (error); 521 if (timespeccmp(&np->n_mtime, &vattr.va_mtime, !=)) { 522 if (vp->v_type == VDIR) { 523 nfs_invaldircache(vp, 0); 524 np->n_direofoffset = 0; 525 } 526 if ((error = nfs_vinvalbuf(vp, V_SAVE, 527 ap->a_cred, ap->a_p, 1)) == EINTR) 528 return (error); 529 np->n_mtime = vattr.va_mtime; 530 } 531 } 532 } 533 if ((nmp->nm_flag & NFSMNT_NQNFS) == 0) 534 NFS_INVALIDATE_ATTRCACHE(np); /* For Open/Close consistency */ 535 return (0); 536 } 537 538 /* 539 * nfs close vnode op 540 * What an NFS client should do upon close after writing is a debatable issue. 541 * Most NFS clients push delayed writes to the server upon close, basically for 542 * two reasons: 543 * 1 - So that any write errors may be reported back to the client process 544 * doing the close system call. By far the two most likely errors are 545 * NFSERR_NOSPC and NFSERR_DQUOT to indicate space allocation failure. 546 * 2 - To put a worst case upper bound on cache inconsistency between 547 * multiple clients for the file. 548 * There is also a consistency problem for Version 2 of the protocol w.r.t. 549 * not being able to tell if other clients are writing a file concurrently, 550 * since there is no way of knowing if the changed modify time in the reply 551 * is only due to the write for this client. 552 * (NFS Version 3 provides weak cache consistency data in the reply that 553 * should be sufficient to detect and handle this case.) 554 * 555 * The current code does the following: 556 * for NFS Version 2 - play it safe and flush/invalidate all dirty buffers 557 * for NFS Version 3 - flush dirty buffers to the server but don't invalidate 558 * or commit them (this satisfies 1 and 2 except for the 559 * case where the server crashes after this close but 560 * before the commit RPC, which is felt to be "good 561 * enough". Changing the last argument to nfs_flush() to 562 * a 1 would force a commit operation, if it is felt a 563 * commit is necessary now. 564 * for NQNFS - do nothing now, since 2 is dealt with via leases and 565 * 1 should be dealt with via an fsync() system call for 566 * cases where write errors are important. 567 */ 568 /* ARGSUSED */ 569 int 570 nfs_close(v) 571 void *v; 572 { 573 struct vop_close_args /* { 574 struct vnodeop_desc *a_desc; 575 struct vnode *a_vp; 576 int a_fflag; 577 struct ucred *a_cred; 578 struct proc *a_p; 579 } */ *ap = v; 580 struct vnode *vp = ap->a_vp; 581 struct nfsnode *np = VTONFS(vp); 582 int error = 0; 583 UVMHIST_FUNC("nfs_close"); UVMHIST_CALLED(ubchist); 584 585 if (vp->v_type == VREG) { 586 if ((VFSTONFS(vp->v_mount)->nm_flag & NFSMNT_NQNFS) == 0 && 587 (np->n_flag & NMODIFIED)) { 588 if (NFS_ISV3(vp)) { 589 error = nfs_flush(vp, ap->a_cred, MNT_WAIT, ap->a_p, 0); 590 np->n_flag &= ~NMODIFIED; 591 } else 592 error = nfs_vinvalbuf(vp, V_SAVE, ap->a_cred, ap->a_p, 1); 593 NFS_INVALIDATE_ATTRCACHE(np); 594 } 595 if (np->n_flag & NWRITEERR) { 596 np->n_flag &= ~NWRITEERR; 597 error = np->n_error; 598 } 599 } 600 UVMHIST_LOG(ubchist, "returning %d", error,0,0,0); 601 return (error); 602 } 603 604 /* 605 * nfs getattr call from vfs. 606 */ 607 int 608 nfs_getattr(v) 609 void *v; 610 { 611 struct vop_getattr_args /* { 612 struct vnode *a_vp; 613 struct vattr *a_vap; 614 struct ucred *a_cred; 615 struct proc *a_p; 616 } */ *ap = v; 617 struct vnode *vp = ap->a_vp; 618 struct nfsnode *np = VTONFS(vp); 619 caddr_t cp; 620 u_int32_t *tl; 621 int32_t t1, t2; 622 caddr_t bpos, dpos; 623 int error = 0; 624 struct mbuf *mreq, *mrep, *md, *mb; 625 const int v3 = NFS_ISV3(vp); 626 627 /* 628 * Update local times for special files. 629 */ 630 if (np->n_flag & (NACC | NUPD)) 631 np->n_flag |= NCHG; 632 633 /* 634 * if we have delayed truncation, do it now. 635 */ 636 nfs_delayedtruncate(vp); 637 638 /* 639 * First look in the cache. 640 */ 641 if (nfs_getattrcache(vp, ap->a_vap) == 0) 642 return (0); 643 nfsstats.rpccnt[NFSPROC_GETATTR]++; 644 nfsm_reqhead(np, NFSPROC_GETATTR, NFSX_FH(v3)); 645 nfsm_fhtom(np, v3); 646 nfsm_request(np, NFSPROC_GETATTR, ap->a_p, ap->a_cred); 647 if (!error) { 648 nfsm_loadattr(vp, ap->a_vap, 0); 649 if (vp->v_type == VDIR && 650 ap->a_vap->va_blocksize < NFS_DIRFRAGSIZ) 651 ap->a_vap->va_blocksize = NFS_DIRFRAGSIZ; 652 } 653 nfsm_reqdone; 654 return (error); 655 } 656 657 /* 658 * nfs setattr call. 659 */ 660 int 661 nfs_setattr(v) 662 void *v; 663 { 664 struct vop_setattr_args /* { 665 struct vnodeop_desc *a_desc; 666 struct vnode *a_vp; 667 struct vattr *a_vap; 668 struct ucred *a_cred; 669 struct proc *a_p; 670 } */ *ap = v; 671 struct vnode *vp = ap->a_vp; 672 struct nfsnode *np = VTONFS(vp); 673 struct vattr *vap = ap->a_vap; 674 int error = 0; 675 u_quad_t tsize = 0; 676 677 /* 678 * Setting of flags is not supported. 679 */ 680 if (vap->va_flags != VNOVAL) 681 return (EOPNOTSUPP); 682 683 /* 684 * Disallow write attempts if the filesystem is mounted read-only. 685 */ 686 if ((vap->va_uid != (uid_t)VNOVAL || 687 vap->va_gid != (gid_t)VNOVAL || vap->va_atime.tv_sec != VNOVAL || 688 vap->va_mtime.tv_sec != VNOVAL || vap->va_mode != (mode_t)VNOVAL) && 689 (vp->v_mount->mnt_flag & MNT_RDONLY)) 690 return (EROFS); 691 if (vap->va_size != VNOVAL) { 692 switch (vp->v_type) { 693 case VDIR: 694 return (EISDIR); 695 case VCHR: 696 case VBLK: 697 case VSOCK: 698 case VFIFO: 699 if (vap->va_mtime.tv_sec == VNOVAL && 700 vap->va_atime.tv_sec == VNOVAL && 701 vap->va_mode == (mode_t)VNOVAL && 702 vap->va_uid == (uid_t)VNOVAL && 703 vap->va_gid == (gid_t)VNOVAL) 704 return (0); 705 vap->va_size = VNOVAL; 706 break; 707 default: 708 /* 709 * Disallow write attempts if the filesystem is 710 * mounted read-only. 711 */ 712 if (vp->v_mount->mnt_flag & MNT_RDONLY) 713 return (EROFS); 714 uvm_vnp_setsize(vp, vap->va_size); 715 tsize = np->n_size; 716 np->n_size = vap->va_size; 717 if (vap->va_size == 0) 718 error = nfs_vinvalbuf(vp, 0, 719 ap->a_cred, ap->a_p, 1); 720 else 721 error = nfs_vinvalbuf(vp, V_SAVE, 722 ap->a_cred, ap->a_p, 1); 723 if (error) { 724 uvm_vnp_setsize(vp, tsize); 725 return (error); 726 } 727 np->n_vattr->va_size = vap->va_size; 728 } 729 } else if ((vap->va_mtime.tv_sec != VNOVAL || 730 vap->va_atime.tv_sec != VNOVAL) && 731 vp->v_type == VREG && 732 (error = nfs_vinvalbuf(vp, V_SAVE, ap->a_cred, 733 ap->a_p, 1)) == EINTR) 734 return (error); 735 error = nfs_setattrrpc(vp, vap, ap->a_cred, ap->a_p); 736 if (error && vap->va_size != VNOVAL) { 737 np->n_size = np->n_vattr->va_size = tsize; 738 uvm_vnp_setsize(vp, np->n_size); 739 } 740 VN_KNOTE(vp, NOTE_ATTRIB); 741 return (error); 742 } 743 744 /* 745 * Do an nfs setattr rpc. 746 */ 747 int 748 nfs_setattrrpc(vp, vap, cred, procp) 749 struct vnode *vp; 750 struct vattr *vap; 751 struct ucred *cred; 752 struct proc *procp; 753 { 754 struct nfsv2_sattr *sp; 755 caddr_t cp; 756 int32_t t1, t2; 757 caddr_t bpos, dpos, cp2; 758 u_int32_t *tl; 759 int error = 0, wccflag = NFSV3_WCCRATTR; 760 struct mbuf *mreq, *mrep, *md, *mb; 761 const int v3 = NFS_ISV3(vp); 762 struct nfsnode *np = VTONFS(vp); 763 764 nfsstats.rpccnt[NFSPROC_SETATTR]++; 765 nfsm_reqhead(np, NFSPROC_SETATTR, NFSX_FH(v3) + NFSX_SATTR(v3)); 766 nfsm_fhtom(np, v3); 767 if (v3) { 768 nfsm_v3attrbuild(vap, TRUE); 769 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); 770 *tl = nfs_false; 771 } else { 772 nfsm_build(sp, struct nfsv2_sattr *, NFSX_V2SATTR); 773 if (vap->va_mode == (mode_t)VNOVAL) 774 sp->sa_mode = nfs_xdrneg1; 775 else 776 sp->sa_mode = vtonfsv2_mode(vp->v_type, vap->va_mode); 777 if (vap->va_uid == (uid_t)VNOVAL) 778 sp->sa_uid = nfs_xdrneg1; 779 else 780 sp->sa_uid = txdr_unsigned(vap->va_uid); 781 if (vap->va_gid == (gid_t)VNOVAL) 782 sp->sa_gid = nfs_xdrneg1; 783 else 784 sp->sa_gid = txdr_unsigned(vap->va_gid); 785 sp->sa_size = txdr_unsigned(vap->va_size); 786 txdr_nfsv2time(&vap->va_atime, &sp->sa_atime); 787 txdr_nfsv2time(&vap->va_mtime, &sp->sa_mtime); 788 } 789 nfsm_request(np, NFSPROC_SETATTR, procp, cred); 790 if (v3) { 791 nfsm_wcc_data(vp, wccflag, 0); 792 } else 793 nfsm_loadattr(vp, (struct vattr *)0, 0); 794 nfsm_reqdone; 795 return (error); 796 } 797 798 /* 799 * nfs lookup call, one step at a time... 800 * First look in cache 801 * If not found, unlock the directory nfsnode and do the rpc 802 * 803 * This code is full of lock/unlock statements and checks, because 804 * we continue after cache_lookup has finished (we need to check 805 * with the attr cache and do an rpc if it has timed out). This means 806 * that the locking effects of cache_lookup have to be taken into 807 * account. 808 */ 809 int 810 nfs_lookup(v) 811 void *v; 812 { 813 struct vop_lookup_args /* { 814 struct vnodeop_desc *a_desc; 815 struct vnode *a_dvp; 816 struct vnode **a_vpp; 817 struct componentname *a_cnp; 818 } */ *ap = v; 819 struct componentname *cnp = ap->a_cnp; 820 struct vnode *dvp = ap->a_dvp; 821 struct vnode **vpp = ap->a_vpp; 822 int flags; 823 struct vnode *newvp; 824 u_int32_t *tl; 825 caddr_t cp; 826 int32_t t1, t2; 827 caddr_t bpos, dpos, cp2; 828 struct mbuf *mreq, *mrep, *md, *mb; 829 long len; 830 nfsfh_t *fhp; 831 struct nfsnode *np; 832 int lockparent, wantparent, error = 0, attrflag, fhsize; 833 const int v3 = NFS_ISV3(dvp); 834 835 cnp->cn_flags &= ~PDIRUNLOCK; 836 flags = cnp->cn_flags; 837 838 *vpp = NULLVP; 839 newvp = NULLVP; 840 if ((flags & ISLASTCN) && (dvp->v_mount->mnt_flag & MNT_RDONLY) && 841 (cnp->cn_nameiop == DELETE || cnp->cn_nameiop == RENAME)) 842 return (EROFS); 843 if (dvp->v_type != VDIR) 844 return (ENOTDIR); 845 846 /* 847 * RFC1813(nfsv3) 3.2 says clients should handle "." by themselves. 848 */ 849 if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') { 850 error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, cnp->cn_proc); 851 if (error) 852 return error; 853 if (cnp->cn_nameiop == RENAME && (flags & ISLASTCN)) 854 return EISDIR; 855 VREF(dvp); 856 *vpp = dvp; 857 if (cnp->cn_nameiop != LOOKUP && (flags & ISLASTCN)) 858 cnp->cn_flags |= SAVENAME; 859 return 0; 860 } 861 862 lockparent = flags & LOCKPARENT; 863 wantparent = flags & (LOCKPARENT|WANTPARENT); 864 np = VTONFS(dvp); 865 866 /* 867 * Before tediously performing a linear scan of the directory, 868 * check the name cache to see if the directory/name pair 869 * we are looking for is known already. 870 * If the directory/name pair is found in the name cache, 871 * we have to ensure the directory has not changed from 872 * the time the cache entry has been created. If it has, 873 * the cache entry has to be ignored. 874 */ 875 if ((error = cache_lookup(dvp, vpp, cnp)) >= 0) { 876 struct vattr vattr; 877 int err2; 878 879 if (error && error != ENOENT) { 880 *vpp = NULLVP; 881 return error; 882 } 883 884 if (cnp->cn_flags & PDIRUNLOCK) { 885 err2 = vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY); 886 if (err2 != 0) { 887 *vpp = NULLVP; 888 return err2; 889 } 890 cnp->cn_flags &= ~PDIRUNLOCK; 891 } 892 893 err2 = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, cnp->cn_proc); 894 if (err2 != 0) { 895 if (error == 0) { 896 if (*vpp != dvp) 897 vput(*vpp); 898 else 899 vrele(*vpp); 900 } 901 *vpp = NULLVP; 902 return err2; 903 } 904 905 if (error == ENOENT) { 906 if (!VOP_GETATTR(dvp, &vattr, cnp->cn_cred, 907 cnp->cn_proc) && timespeccmp(&vattr.va_mtime, 908 &VTONFS(dvp)->n_nctime, ==)) 909 return ENOENT; 910 cache_purge1(dvp, NULL, PURGE_CHILDREN); 911 timespecclear(&np->n_nctime); 912 goto dorpc; 913 } 914 915 newvp = *vpp; 916 if (!VOP_GETATTR(newvp, &vattr, cnp->cn_cred, cnp->cn_proc) 917 && vattr.va_ctime.tv_sec == VTONFS(newvp)->n_ctime) 918 { 919 nfsstats.lookupcache_hits++; 920 if (cnp->cn_nameiop != LOOKUP && (flags & ISLASTCN)) 921 cnp->cn_flags |= SAVENAME; 922 if ((!lockparent || !(flags & ISLASTCN)) && 923 newvp != dvp) 924 VOP_UNLOCK(dvp, 0); 925 KASSERT(newvp->v_type != VNON); 926 return (0); 927 } 928 cache_purge1(newvp, NULL, PURGE_PARENTS); 929 if (newvp != dvp) 930 vput(newvp); 931 else 932 vrele(newvp); 933 *vpp = NULLVP; 934 } 935 dorpc: 936 #if 0 937 /* 938 * because nfsv3 has the same CREATE semantics as ours, 939 * we don't have to perform LOOKUPs beforehand. 940 * 941 * XXX ideally we can do the same for nfsv2 in the case of !O_EXCL. 942 * XXX although we have no way to know if O_EXCL is requested or not. 943 */ 944 945 if (v3 && cnp->cn_nameiop == CREATE && 946 (flags & (ISLASTCN|ISDOTDOT)) == ISLASTCN && 947 (dvp->v_mount->mnt_flag & MNT_RDONLY) == 0) { 948 KASSERT(lockparent); 949 cnp->cn_flags |= SAVENAME; 950 return (EJUSTRETURN); 951 } 952 #endif /* 0 */ 953 954 error = 0; 955 newvp = NULLVP; 956 nfsstats.lookupcache_misses++; 957 nfsstats.rpccnt[NFSPROC_LOOKUP]++; 958 len = cnp->cn_namelen; 959 nfsm_reqhead(np, NFSPROC_LOOKUP, 960 NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(len)); 961 nfsm_fhtom(np, v3); 962 nfsm_strtom(cnp->cn_nameptr, len, NFS_MAXNAMLEN); 963 nfsm_request(np, NFSPROC_LOOKUP, cnp->cn_proc, cnp->cn_cred); 964 if (error) { 965 nfsm_postop_attr(dvp, attrflag, 0); 966 m_freem(mrep); 967 goto nfsmout; 968 } 969 nfsm_getfh(fhp, fhsize, v3); 970 971 /* 972 * Handle RENAME case... 973 */ 974 if (cnp->cn_nameiop == RENAME && wantparent && (flags & ISLASTCN)) { 975 if (NFS_CMPFH(np, fhp, fhsize)) { 976 m_freem(mrep); 977 return (EISDIR); 978 } 979 error = nfs_nget(dvp->v_mount, fhp, fhsize, &np); 980 if (error) { 981 m_freem(mrep); 982 return error; 983 } 984 newvp = NFSTOV(np); 985 if (v3) { 986 nfsm_postop_attr(newvp, attrflag, 0); 987 nfsm_postop_attr(dvp, attrflag, 0); 988 } else 989 nfsm_loadattr(newvp, (struct vattr *)0, 0); 990 *vpp = newvp; 991 m_freem(mrep); 992 cnp->cn_flags |= SAVENAME; 993 if (!lockparent) { 994 VOP_UNLOCK(dvp, 0); 995 cnp->cn_flags |= PDIRUNLOCK; 996 } 997 goto validate; 998 } 999 1000 /* 1001 * The postop attr handling is duplicated for each if case, 1002 * because it should be done while dvp is locked (unlocking 1003 * dvp is different for each case). 1004 */ 1005 1006 if (NFS_CMPFH(np, fhp, fhsize)) { 1007 /* 1008 * "." lookup 1009 */ 1010 VREF(dvp); 1011 newvp = dvp; 1012 if (v3) { 1013 nfsm_postop_attr(newvp, attrflag, 0); 1014 nfsm_postop_attr(dvp, attrflag, 0); 1015 } else 1016 nfsm_loadattr(newvp, (struct vattr *)0, 0); 1017 } else if (flags & ISDOTDOT) { 1018 /* 1019 * ".." lookup 1020 */ 1021 VOP_UNLOCK(dvp, 0); 1022 cnp->cn_flags |= PDIRUNLOCK; 1023 1024 error = nfs_nget(dvp->v_mount, fhp, fhsize, &np); 1025 if (error) { 1026 if (vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY) == 0) 1027 cnp->cn_flags &= ~PDIRUNLOCK; 1028 m_freem(mrep); 1029 return error; 1030 } 1031 newvp = NFSTOV(np); 1032 1033 if (v3) { 1034 nfsm_postop_attr(newvp, attrflag, 0); 1035 nfsm_postop_attr(dvp, attrflag, 0); 1036 } else 1037 nfsm_loadattr(newvp, (struct vattr *)0, 0); 1038 1039 if (lockparent && (flags & ISLASTCN)) { 1040 if ((error = vn_lock(dvp, LK_EXCLUSIVE))) { 1041 m_freem(mrep); 1042 vput(newvp); 1043 return error; 1044 } 1045 cnp->cn_flags &= ~PDIRUNLOCK; 1046 } 1047 } else { 1048 /* 1049 * Other lookups. 1050 */ 1051 error = nfs_nget(dvp->v_mount, fhp, fhsize, &np); 1052 if (error) { 1053 m_freem(mrep); 1054 return error; 1055 } 1056 newvp = NFSTOV(np); 1057 if (v3) { 1058 nfsm_postop_attr(newvp, attrflag, 0); 1059 nfsm_postop_attr(dvp, attrflag, 0); 1060 } else 1061 nfsm_loadattr(newvp, (struct vattr *)0, 0); 1062 if (!lockparent || !(flags & ISLASTCN)) { 1063 VOP_UNLOCK(dvp, 0); 1064 cnp->cn_flags |= PDIRUNLOCK; 1065 } 1066 } 1067 if (cnp->cn_nameiop != LOOKUP && (flags & ISLASTCN)) 1068 cnp->cn_flags |= SAVENAME; 1069 if ((cnp->cn_flags & MAKEENTRY) && 1070 (cnp->cn_nameiop != DELETE || !(flags & ISLASTCN))) { 1071 nfs_cache_enter(dvp, newvp, cnp); 1072 } 1073 *vpp = newvp; 1074 nfsm_reqdone; 1075 if (error) { 1076 /* 1077 * We get here only because of errors returned by 1078 * the RPC. Otherwise we'll have returned above 1079 * (the nfsm_* macros will jump to nfsm_reqdone 1080 * on error). 1081 */ 1082 if (error == ENOENT && (cnp->cn_flags & MAKEENTRY) && 1083 cnp->cn_nameiop != CREATE) { 1084 nfs_cache_enter(dvp, NULL, cnp); 1085 } 1086 if (newvp != NULLVP) { 1087 vrele(newvp); 1088 if (newvp != dvp) 1089 VOP_UNLOCK(newvp, 0); 1090 } 1091 if ((cnp->cn_nameiop == CREATE || cnp->cn_nameiop == RENAME) && 1092 (flags & ISLASTCN) && error == ENOENT) { 1093 if (dvp->v_mount->mnt_flag & MNT_RDONLY) 1094 error = EROFS; 1095 else 1096 error = EJUSTRETURN; 1097 } 1098 if (cnp->cn_nameiop != LOOKUP && (flags & ISLASTCN)) 1099 cnp->cn_flags |= SAVENAME; 1100 *vpp = NULL; 1101 return error; 1102 } 1103 1104 validate: 1105 /* 1106 * make sure we have valid type and size. 1107 */ 1108 1109 newvp = *vpp; 1110 if (newvp->v_type == VNON) { 1111 struct vattr vattr; /* dummy */ 1112 1113 KASSERT(VTONFS(newvp)->n_attrstamp == 0); 1114 error = VOP_GETATTR(newvp, &vattr, cnp->cn_cred, cnp->cn_proc); 1115 if (error) { 1116 vput(newvp); 1117 *vpp = NULL; 1118 } 1119 } 1120 1121 return error; 1122 } 1123 1124 /* 1125 * nfs read call. 1126 * Just call nfs_bioread() to do the work. 1127 */ 1128 int 1129 nfs_read(v) 1130 void *v; 1131 { 1132 struct vop_read_args /* { 1133 struct vnode *a_vp; 1134 struct uio *a_uio; 1135 int a_ioflag; 1136 struct ucred *a_cred; 1137 } */ *ap = v; 1138 struct vnode *vp = ap->a_vp; 1139 1140 if (vp->v_type != VREG) 1141 return (EPERM); 1142 return (nfs_bioread(vp, ap->a_uio, ap->a_ioflag, ap->a_cred, 0)); 1143 } 1144 1145 /* 1146 * nfs readlink call 1147 */ 1148 int 1149 nfs_readlink(v) 1150 void *v; 1151 { 1152 struct vop_readlink_args /* { 1153 struct vnode *a_vp; 1154 struct uio *a_uio; 1155 struct ucred *a_cred; 1156 } */ *ap = v; 1157 struct vnode *vp = ap->a_vp; 1158 1159 if (vp->v_type != VLNK) 1160 return (EPERM); 1161 return (nfs_bioread(vp, ap->a_uio, 0, ap->a_cred, 0)); 1162 } 1163 1164 /* 1165 * Do a readlink rpc. 1166 * Called by nfs_doio() from below the buffer cache. 1167 */ 1168 int 1169 nfs_readlinkrpc(vp, uiop, cred) 1170 struct vnode *vp; 1171 struct uio *uiop; 1172 struct ucred *cred; 1173 { 1174 u_int32_t *tl; 1175 caddr_t cp; 1176 int32_t t1, t2; 1177 caddr_t bpos, dpos, cp2; 1178 int error = 0, attrflag; 1179 uint32_t len; 1180 struct mbuf *mreq, *mrep, *md, *mb; 1181 const int v3 = NFS_ISV3(vp); 1182 struct nfsnode *np = VTONFS(vp); 1183 1184 nfsstats.rpccnt[NFSPROC_READLINK]++; 1185 nfsm_reqhead(np, NFSPROC_READLINK, NFSX_FH(v3)); 1186 nfsm_fhtom(np, v3); 1187 nfsm_request(np, NFSPROC_READLINK, uiop->uio_procp, cred); 1188 if (v3) 1189 nfsm_postop_attr(vp, attrflag, 0); 1190 if (!error) { 1191 if (v3) { 1192 nfsm_dissect(tl, uint32_t *, NFSX_UNSIGNED); 1193 len = fxdr_unsigned(uint32_t, *tl); 1194 if (len > MAXPATHLEN) { 1195 /* 1196 * this pathname is too long for us. 1197 */ 1198 m_freem(mrep); 1199 /* Solaris returns EINVAL. should we follow? */ 1200 error = ENAMETOOLONG; 1201 goto nfsmout; 1202 } 1203 } else { 1204 nfsm_strsiz(len, NFS_MAXPATHLEN); 1205 } 1206 nfsm_mtouio(uiop, len); 1207 } 1208 nfsm_reqdone; 1209 return (error); 1210 } 1211 1212 /* 1213 * nfs read rpc call 1214 * Ditto above 1215 */ 1216 int 1217 nfs_readrpc(vp, uiop) 1218 struct vnode *vp; 1219 struct uio *uiop; 1220 { 1221 u_int32_t *tl; 1222 caddr_t cp; 1223 int32_t t1, t2; 1224 caddr_t bpos, dpos, cp2; 1225 struct mbuf *mreq, *mrep, *md, *mb; 1226 struct nfsmount *nmp; 1227 int error = 0, len, retlen, tsiz, eof, attrflag; 1228 const int v3 = NFS_ISV3(vp); 1229 struct nfsnode *np = VTONFS(vp); 1230 1231 #ifndef nolint 1232 eof = 0; 1233 #endif 1234 nmp = VFSTONFS(vp->v_mount); 1235 tsiz = uiop->uio_resid; 1236 if (uiop->uio_offset + tsiz > nmp->nm_maxfilesize) 1237 return (EFBIG); 1238 while (tsiz > 0) { 1239 nfsstats.rpccnt[NFSPROC_READ]++; 1240 len = (tsiz > nmp->nm_rsize) ? nmp->nm_rsize : tsiz; 1241 nfsm_reqhead(np, NFSPROC_READ, NFSX_FH(v3) + NFSX_UNSIGNED * 3); 1242 nfsm_fhtom(np, v3); 1243 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED * 3); 1244 if (v3) { 1245 txdr_hyper(uiop->uio_offset, tl); 1246 *(tl + 2) = txdr_unsigned(len); 1247 } else { 1248 *tl++ = txdr_unsigned(uiop->uio_offset); 1249 *tl++ = txdr_unsigned(len); 1250 *tl = 0; 1251 } 1252 nfsm_request(np, NFSPROC_READ, uiop->uio_procp, np->n_rcred); 1253 if (v3) { 1254 nfsm_postop_attr(vp, attrflag, NAC_NOTRUNC); 1255 if (error) { 1256 m_freem(mrep); 1257 goto nfsmout; 1258 } 1259 nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1260 eof = fxdr_unsigned(int, *(tl + 1)); 1261 } else 1262 nfsm_loadattr(vp, (struct vattr *)0, NAC_NOTRUNC); 1263 nfsm_strsiz(retlen, nmp->nm_rsize); 1264 nfsm_mtouio(uiop, retlen); 1265 m_freem(mrep); 1266 tsiz -= retlen; 1267 if (v3) { 1268 if (eof || retlen == 0) 1269 tsiz = 0; 1270 } else if (retlen < len) 1271 tsiz = 0; 1272 } 1273 nfsmout: 1274 return (error); 1275 } 1276 1277 struct nfs_writerpc_context { 1278 struct simplelock nwc_slock; 1279 volatile int nwc_mbufcount; 1280 }; 1281 1282 /* 1283 * free mbuf used to refer protected pages while write rpc call. 1284 * called at splvm. 1285 */ 1286 static void 1287 nfs_writerpc_extfree(struct mbuf *m, caddr_t buf, size_t size, void *arg) 1288 { 1289 struct nfs_writerpc_context *ctx = arg; 1290 1291 KASSERT(m != NULL); 1292 KASSERT(ctx != NULL); 1293 pool_cache_put(&mbpool_cache, m); 1294 simple_lock(&ctx->nwc_slock); 1295 if (--ctx->nwc_mbufcount == 0) { 1296 wakeup(ctx); 1297 } 1298 simple_unlock(&ctx->nwc_slock); 1299 } 1300 1301 /* 1302 * nfs write call 1303 */ 1304 int 1305 nfs_writerpc(vp, uiop, iomode, pageprotected, stalewriteverfp) 1306 struct vnode *vp; 1307 struct uio *uiop; 1308 int *iomode; 1309 boolean_t pageprotected; 1310 boolean_t *stalewriteverfp; 1311 { 1312 u_int32_t *tl; 1313 caddr_t cp; 1314 int32_t t1, t2; 1315 caddr_t bpos, dpos, cp2; 1316 struct mbuf *mreq, *mrep, *md, *mb; 1317 struct nfsmount *nmp = VFSTONFS(vp->v_mount); 1318 int error = 0, len, tsiz, wccflag = NFSV3_WCCRATTR, rlen, commit; 1319 const int v3 = NFS_ISV3(vp); 1320 int committed = NFSV3WRITE_FILESYNC; 1321 struct nfsnode *np = VTONFS(vp); 1322 struct nfs_writerpc_context ctx; 1323 int s; 1324 struct lwp *l = NULL; 1325 size_t origresid; 1326 1327 simple_lock_init(&ctx.nwc_slock); 1328 ctx.nwc_mbufcount = 1; 1329 1330 if (vp->v_mount->mnt_flag & MNT_RDONLY) { 1331 panic("writerpc readonly vp %p", vp); 1332 } 1333 1334 #ifdef DIAGNOSTIC 1335 if (uiop->uio_iovcnt != 1) 1336 panic("nfs: writerpc iovcnt > 1"); 1337 #endif 1338 tsiz = uiop->uio_resid; 1339 if (uiop->uio_offset + tsiz > nmp->nm_maxfilesize) 1340 return (EFBIG); 1341 if (pageprotected) { 1342 l = curlwp; 1343 PHOLD(l); 1344 } 1345 retry: 1346 origresid = uiop->uio_resid; 1347 KASSERT(origresid == uiop->uio_iov->iov_len); 1348 while (tsiz > 0) { 1349 uint32_t datalen; /* data bytes need to be allocated in mbuf */ 1350 uint32_t backup; 1351 boolean_t stalewriteverf = FALSE; 1352 1353 nfsstats.rpccnt[NFSPROC_WRITE]++; 1354 len = min(tsiz, nmp->nm_wsize); 1355 datalen = pageprotected ? 0 : nfsm_rndup(len); 1356 nfsm_reqhead(np, NFSPROC_WRITE, 1357 NFSX_FH(v3) + 5 * NFSX_UNSIGNED + datalen); 1358 nfsm_fhtom(np, v3); 1359 if (v3) { 1360 nfsm_build(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 1361 txdr_hyper(uiop->uio_offset, tl); 1362 tl += 2; 1363 *tl++ = txdr_unsigned(len); 1364 *tl++ = txdr_unsigned(*iomode); 1365 *tl = txdr_unsigned(len); 1366 } else { 1367 u_int32_t x; 1368 1369 nfsm_build(tl, u_int32_t *, 4 * NFSX_UNSIGNED); 1370 /* Set both "begin" and "current" to non-garbage. */ 1371 x = txdr_unsigned((u_int32_t)uiop->uio_offset); 1372 *tl++ = x; /* "begin offset" */ 1373 *tl++ = x; /* "current offset" */ 1374 x = txdr_unsigned(len); 1375 *tl++ = x; /* total to this offset */ 1376 *tl = x; /* size of this write */ 1377 1378 } 1379 if (pageprotected) { 1380 /* 1381 * since we know pages can't be modified during i/o, 1382 * no need to copy them for us. 1383 */ 1384 struct mbuf *m; 1385 struct iovec *iovp = uiop->uio_iov; 1386 1387 m = m_get(M_WAIT, MT_DATA); 1388 MCLAIM(m, &nfs_mowner); 1389 MEXTADD(m, iovp->iov_base, len, M_MBUF, 1390 nfs_writerpc_extfree, &ctx); 1391 m->m_flags |= M_EXT_ROMAP; 1392 m->m_len = len; 1393 mb->m_next = m; 1394 /* 1395 * no need to maintain mb and bpos here 1396 * because no one care them later. 1397 */ 1398 #if 0 1399 mb = m; 1400 bpos = mtod(caddr_t, mb) + mb->m_len; 1401 #endif 1402 iovp->iov_base = (char *)iovp->iov_base + len; 1403 iovp->iov_len -= len; 1404 uiop->uio_offset += len; 1405 uiop->uio_resid -= len; 1406 s = splvm(); 1407 simple_lock(&ctx.nwc_slock); 1408 ctx.nwc_mbufcount++; 1409 simple_unlock(&ctx.nwc_slock); 1410 splx(s); 1411 nfs_zeropad(mb, 0, nfsm_padlen(len)); 1412 } else { 1413 nfsm_uiotom(uiop, len); 1414 } 1415 nfsm_request(np, NFSPROC_WRITE, uiop->uio_procp, np->n_wcred); 1416 if (v3) { 1417 wccflag = NFSV3_WCCCHK; 1418 nfsm_wcc_data(vp, wccflag, NAC_NOTRUNC); 1419 if (!error) { 1420 nfsm_dissect(tl, u_int32_t *, 2 * NFSX_UNSIGNED 1421 + NFSX_V3WRITEVERF); 1422 rlen = fxdr_unsigned(int, *tl++); 1423 if (rlen == 0) { 1424 error = NFSERR_IO; 1425 m_freem(mrep); 1426 break; 1427 } else if (rlen < len) { 1428 backup = len - rlen; 1429 uiop->uio_iov->iov_base = 1430 (caddr_t)uiop->uio_iov->iov_base - 1431 backup; 1432 uiop->uio_iov->iov_len += backup; 1433 uiop->uio_offset -= backup; 1434 uiop->uio_resid += backup; 1435 len = rlen; 1436 } 1437 commit = fxdr_unsigned(int, *tl++); 1438 1439 /* 1440 * Return the lowest committment level 1441 * obtained by any of the RPCs. 1442 */ 1443 if (committed == NFSV3WRITE_FILESYNC) 1444 committed = commit; 1445 else if (committed == NFSV3WRITE_DATASYNC && 1446 commit == NFSV3WRITE_UNSTABLE) 1447 committed = commit; 1448 simple_lock(&nmp->nm_slock); 1449 if ((nmp->nm_iflag & NFSMNT_HASWRITEVERF) == 0){ 1450 memcpy(nmp->nm_writeverf, tl, 1451 NFSX_V3WRITEVERF); 1452 nmp->nm_iflag |= NFSMNT_HASWRITEVERF; 1453 } else if ((nmp->nm_iflag & 1454 NFSMNT_STALEWRITEVERF) || 1455 memcmp(tl, nmp->nm_writeverf, 1456 NFSX_V3WRITEVERF)) { 1457 memcpy(nmp->nm_writeverf, tl, 1458 NFSX_V3WRITEVERF); 1459 /* 1460 * note NFSMNT_STALEWRITEVERF 1461 * if we're the first thread to 1462 * notice it. 1463 */ 1464 if ((nmp->nm_iflag & 1465 NFSMNT_STALEWRITEVERF) == 0) { 1466 stalewriteverf = TRUE; 1467 nmp->nm_iflag |= 1468 NFSMNT_STALEWRITEVERF; 1469 } 1470 } 1471 simple_unlock(&nmp->nm_slock); 1472 } 1473 } else 1474 nfsm_loadattr(vp, (struct vattr *)0, NAC_NOTRUNC); 1475 if (wccflag) 1476 VTONFS(vp)->n_mtime = VTONFS(vp)->n_vattr->va_mtime; 1477 m_freem(mrep); 1478 if (error) 1479 break; 1480 tsiz -= len; 1481 if (stalewriteverf) { 1482 *stalewriteverfp = TRUE; 1483 stalewriteverf = FALSE; 1484 if (committed == NFSV3WRITE_UNSTABLE && 1485 len != origresid) { 1486 /* 1487 * if our write requests weren't atomic but 1488 * unstable, datas in previous iterations 1489 * might have already been lost now. 1490 * then, we should resend them to nfsd. 1491 */ 1492 backup = origresid - tsiz; 1493 uiop->uio_iov->iov_base = 1494 (caddr_t)uiop->uio_iov->iov_base - backup; 1495 uiop->uio_iov->iov_len += backup; 1496 uiop->uio_offset -= backup; 1497 uiop->uio_resid += backup; 1498 tsiz = origresid; 1499 goto retry; 1500 } 1501 } 1502 } 1503 if (pageprotected) { 1504 /* 1505 * wait until mbufs go away. 1506 * retransmitted mbufs can survive longer than rpc requests 1507 * themselves. 1508 */ 1509 s = splvm(); 1510 simple_lock(&ctx.nwc_slock); 1511 ctx.nwc_mbufcount--; 1512 while (ctx.nwc_mbufcount > 0) { 1513 ltsleep(&ctx, PRIBIO, "nfsmblk", 0, &ctx.nwc_slock); 1514 } 1515 simple_unlock(&ctx.nwc_slock); 1516 splx(s); 1517 PRELE(l); 1518 } 1519 nfsmout: 1520 *iomode = committed; 1521 if (error) 1522 uiop->uio_resid = tsiz; 1523 return (error); 1524 } 1525 1526 /* 1527 * nfs mknod rpc 1528 * For NFS v2 this is a kludge. Use a create rpc but with the IFMT bits of the 1529 * mode set to specify the file type and the size field for rdev. 1530 */ 1531 int 1532 nfs_mknodrpc(dvp, vpp, cnp, vap) 1533 struct vnode *dvp; 1534 struct vnode **vpp; 1535 struct componentname *cnp; 1536 struct vattr *vap; 1537 { 1538 struct nfsv2_sattr *sp; 1539 u_int32_t *tl; 1540 caddr_t cp; 1541 int32_t t1, t2; 1542 struct vnode *newvp = (struct vnode *)0; 1543 struct nfsnode *dnp, *np; 1544 char *cp2; 1545 caddr_t bpos, dpos; 1546 int error = 0, wccflag = NFSV3_WCCRATTR, gotvp = 0; 1547 struct mbuf *mreq, *mrep, *md, *mb; 1548 u_int32_t rdev; 1549 const int v3 = NFS_ISV3(dvp); 1550 1551 if (vap->va_type == VCHR || vap->va_type == VBLK) 1552 rdev = txdr_unsigned(vap->va_rdev); 1553 else if (vap->va_type == VFIFO || vap->va_type == VSOCK) 1554 rdev = nfs_xdrneg1; 1555 else { 1556 VOP_ABORTOP(dvp, cnp); 1557 vput(dvp); 1558 return (EOPNOTSUPP); 1559 } 1560 nfsstats.rpccnt[NFSPROC_MKNOD]++; 1561 dnp = VTONFS(dvp); 1562 nfsm_reqhead(dnp, NFSPROC_MKNOD, NFSX_FH(v3) + 4 * NFSX_UNSIGNED + 1563 + nfsm_rndup(cnp->cn_namelen) + NFSX_SATTR(v3)); 1564 nfsm_fhtom(dnp, v3); 1565 nfsm_strtom(cnp->cn_nameptr, cnp->cn_namelen, NFS_MAXNAMLEN); 1566 if (v3) { 1567 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); 1568 *tl++ = vtonfsv3_type(vap->va_type); 1569 nfsm_v3attrbuild(vap, FALSE); 1570 if (vap->va_type == VCHR || vap->va_type == VBLK) { 1571 nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 1572 *tl++ = txdr_unsigned(major(vap->va_rdev)); 1573 *tl = txdr_unsigned(minor(vap->va_rdev)); 1574 } 1575 } else { 1576 nfsm_build(sp, struct nfsv2_sattr *, NFSX_V2SATTR); 1577 sp->sa_mode = vtonfsv2_mode(vap->va_type, vap->va_mode); 1578 sp->sa_uid = nfs_xdrneg1; 1579 sp->sa_gid = nfs_xdrneg1; 1580 sp->sa_size = rdev; 1581 txdr_nfsv2time(&vap->va_atime, &sp->sa_atime); 1582 txdr_nfsv2time(&vap->va_mtime, &sp->sa_mtime); 1583 } 1584 nfsm_request(dnp, NFSPROC_MKNOD, cnp->cn_proc, cnp->cn_cred); 1585 if (!error) { 1586 nfsm_mtofh(dvp, newvp, v3, gotvp); 1587 if (!gotvp) { 1588 error = nfs_lookitup(dvp, cnp->cn_nameptr, 1589 cnp->cn_namelen, cnp->cn_cred, cnp->cn_proc, &np); 1590 if (!error) 1591 newvp = NFSTOV(np); 1592 } 1593 } 1594 if (v3) 1595 nfsm_wcc_data(dvp, wccflag, 0); 1596 nfsm_reqdone; 1597 if (error) { 1598 if (newvp) 1599 vput(newvp); 1600 } else { 1601 if (cnp->cn_flags & MAKEENTRY) 1602 nfs_cache_enter(dvp, newvp, cnp); 1603 *vpp = newvp; 1604 } 1605 PNBUF_PUT(cnp->cn_pnbuf); 1606 VTONFS(dvp)->n_flag |= NMODIFIED; 1607 if (!wccflag) 1608 NFS_INVALIDATE_ATTRCACHE(VTONFS(dvp)); 1609 vput(dvp); 1610 return (error); 1611 } 1612 1613 /* 1614 * nfs mknod vop 1615 * just call nfs_mknodrpc() to do the work. 1616 */ 1617 /* ARGSUSED */ 1618 int 1619 nfs_mknod(v) 1620 void *v; 1621 { 1622 struct vop_mknod_args /* { 1623 struct vnode *a_dvp; 1624 struct vnode **a_vpp; 1625 struct componentname *a_cnp; 1626 struct vattr *a_vap; 1627 } */ *ap = v; 1628 int error; 1629 1630 error = nfs_mknodrpc(ap->a_dvp, ap->a_vpp, ap->a_cnp, ap->a_vap); 1631 VN_KNOTE(ap->a_dvp, NOTE_WRITE); 1632 return (error); 1633 } 1634 1635 static u_long create_verf; 1636 /* 1637 * nfs file create call 1638 */ 1639 int 1640 nfs_create(v) 1641 void *v; 1642 { 1643 struct vop_create_args /* { 1644 struct vnode *a_dvp; 1645 struct vnode **a_vpp; 1646 struct componentname *a_cnp; 1647 struct vattr *a_vap; 1648 } */ *ap = v; 1649 struct vnode *dvp = ap->a_dvp; 1650 struct vattr *vap = ap->a_vap; 1651 struct componentname *cnp = ap->a_cnp; 1652 struct nfsv2_sattr *sp; 1653 u_int32_t *tl; 1654 caddr_t cp; 1655 int32_t t1, t2; 1656 struct nfsnode *dnp, *np = (struct nfsnode *)0; 1657 struct vnode *newvp = (struct vnode *)0; 1658 caddr_t bpos, dpos, cp2; 1659 int error, wccflag = NFSV3_WCCRATTR, gotvp = 0, fmode = 0; 1660 struct mbuf *mreq, *mrep, *md, *mb; 1661 const int v3 = NFS_ISV3(dvp); 1662 1663 /* 1664 * Oops, not for me.. 1665 */ 1666 if (vap->va_type == VSOCK) 1667 return (nfs_mknodrpc(dvp, ap->a_vpp, cnp, vap)); 1668 1669 #ifdef VA_EXCLUSIVE 1670 if (vap->va_vaflags & VA_EXCLUSIVE) 1671 fmode |= O_EXCL; 1672 #endif 1673 again: 1674 error = 0; 1675 nfsstats.rpccnt[NFSPROC_CREATE]++; 1676 dnp = VTONFS(dvp); 1677 nfsm_reqhead(dnp, NFSPROC_CREATE, NFSX_FH(v3) + 2 * NFSX_UNSIGNED + 1678 nfsm_rndup(cnp->cn_namelen) + NFSX_SATTR(v3)); 1679 nfsm_fhtom(dnp, v3); 1680 nfsm_strtom(cnp->cn_nameptr, cnp->cn_namelen, NFS_MAXNAMLEN); 1681 if (v3) { 1682 nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); 1683 if (fmode & O_EXCL) { 1684 *tl = txdr_unsigned(NFSV3CREATE_EXCLUSIVE); 1685 nfsm_build(tl, u_int32_t *, NFSX_V3CREATEVERF); 1686 #ifdef INET 1687 if (TAILQ_FIRST(&in_ifaddr)) 1688 *tl++ = TAILQ_FIRST(&in_ifaddr)->ia_addr.sin_addr.s_addr; 1689 else 1690 *tl++ = create_verf; 1691 #else 1692 *tl++ = create_verf; 1693 #endif 1694 *tl = ++create_verf; 1695 } else { 1696 *tl = txdr_unsigned(NFSV3CREATE_UNCHECKED); 1697 nfsm_v3attrbuild(vap, FALSE); 1698 } 1699 } else { 1700 nfsm_build(sp, struct nfsv2_sattr *, NFSX_V2SATTR); 1701 sp->sa_mode = vtonfsv2_mode(vap->va_type, vap->va_mode); 1702 sp->sa_uid = nfs_xdrneg1; 1703 sp->sa_gid = nfs_xdrneg1; 1704 sp->sa_size = 0; 1705 txdr_nfsv2time(&vap->va_atime, &sp->sa_atime); 1706 txdr_nfsv2time(&vap->va_mtime, &sp->sa_mtime); 1707 } 1708 nfsm_request(dnp, NFSPROC_CREATE, cnp->cn_proc, cnp->cn_cred); 1709 if (!error) { 1710 nfsm_mtofh(dvp, newvp, v3, gotvp); 1711 if (!gotvp) { 1712 error = nfs_lookitup(dvp, cnp->cn_nameptr, 1713 cnp->cn_namelen, cnp->cn_cred, cnp->cn_proc, &np); 1714 if (!error) 1715 newvp = NFSTOV(np); 1716 } 1717 } 1718 if (v3) 1719 nfsm_wcc_data(dvp, wccflag, 0); 1720 nfsm_reqdone; 1721 if (error) { 1722 if (v3 && (fmode & O_EXCL) && error == NFSERR_NOTSUPP) { 1723 fmode &= ~O_EXCL; 1724 goto again; 1725 } 1726 if (newvp) 1727 vput(newvp); 1728 } else if (v3 && (fmode & O_EXCL)) 1729 error = nfs_setattrrpc(newvp, vap, cnp->cn_cred, cnp->cn_proc); 1730 if (!error) { 1731 if (cnp->cn_flags & MAKEENTRY) 1732 nfs_cache_enter(dvp, newvp, cnp); 1733 *ap->a_vpp = newvp; 1734 } 1735 PNBUF_PUT(cnp->cn_pnbuf); 1736 VTONFS(dvp)->n_flag |= NMODIFIED; 1737 if (!wccflag) 1738 NFS_INVALIDATE_ATTRCACHE(VTONFS(dvp)); 1739 VN_KNOTE(ap->a_dvp, NOTE_WRITE); 1740 vput(dvp); 1741 return (error); 1742 } 1743 1744 /* 1745 * nfs file remove call 1746 * To try and make nfs semantics closer to ufs semantics, a file that has 1747 * other processes using the vnode is renamed instead of removed and then 1748 * removed later on the last close. 1749 * - If v_usecount > 1 1750 * If a rename is not already in the works 1751 * call nfs_sillyrename() to set it up 1752 * else 1753 * do the remove rpc 1754 */ 1755 int 1756 nfs_remove(v) 1757 void *v; 1758 { 1759 struct vop_remove_args /* { 1760 struct vnodeop_desc *a_desc; 1761 struct vnode * a_dvp; 1762 struct vnode * a_vp; 1763 struct componentname * a_cnp; 1764 } */ *ap = v; 1765 struct vnode *vp = ap->a_vp; 1766 struct vnode *dvp = ap->a_dvp; 1767 struct componentname *cnp = ap->a_cnp; 1768 struct nfsnode *np = VTONFS(vp); 1769 int error = 0; 1770 struct vattr vattr; 1771 1772 #ifndef DIAGNOSTIC 1773 if ((cnp->cn_flags & HASBUF) == 0) 1774 panic("nfs_remove: no name"); 1775 if (vp->v_usecount < 1) 1776 panic("nfs_remove: bad v_usecount"); 1777 #endif 1778 if (vp->v_type == VDIR) 1779 error = EPERM; 1780 else if (vp->v_usecount == 1 || (np->n_sillyrename && 1781 VOP_GETATTR(vp, &vattr, cnp->cn_cred, cnp->cn_proc) == 0 && 1782 vattr.va_nlink > 1)) { 1783 /* 1784 * Purge the name cache so that the chance of a lookup for 1785 * the name succeeding while the remove is in progress is 1786 * minimized. Without node locking it can still happen, such 1787 * that an I/O op returns ESTALE, but since you get this if 1788 * another host removes the file.. 1789 */ 1790 cache_purge(vp); 1791 /* 1792 * throw away biocache buffers, mainly to avoid 1793 * unnecessary delayed writes later. 1794 */ 1795 error = nfs_vinvalbuf(vp, 0, cnp->cn_cred, cnp->cn_proc, 1); 1796 /* Do the rpc */ 1797 if (error != EINTR) 1798 error = nfs_removerpc(dvp, cnp->cn_nameptr, 1799 cnp->cn_namelen, cnp->cn_cred, cnp->cn_proc); 1800 } else if (!np->n_sillyrename) 1801 error = nfs_sillyrename(dvp, vp, cnp); 1802 PNBUF_PUT(cnp->cn_pnbuf); 1803 if (!error && nfs_getattrcache(vp, &vattr) == 0 && 1804 vattr.va_nlink == 1) { 1805 np->n_flag |= NREMOVED; 1806 } 1807 NFS_INVALIDATE_ATTRCACHE(np); 1808 VN_KNOTE(vp, NOTE_DELETE); 1809 VN_KNOTE(dvp, NOTE_WRITE); 1810 if (dvp == vp) 1811 vrele(vp); 1812 else 1813 vput(vp); 1814 vput(dvp); 1815 return (error); 1816 } 1817 1818 /* 1819 * nfs file remove rpc called from nfs_inactive 1820 */ 1821 int 1822 nfs_removeit(sp) 1823 struct sillyrename *sp; 1824 { 1825 1826 return (nfs_removerpc(sp->s_dvp, sp->s_name, sp->s_namlen, sp->s_cred, 1827 (struct proc *)0)); 1828 } 1829 1830 /* 1831 * Nfs remove rpc, called from nfs_remove() and nfs_removeit(). 1832 */ 1833 int 1834 nfs_removerpc(dvp, name, namelen, cred, proc) 1835 struct vnode *dvp; 1836 const char *name; 1837 int namelen; 1838 struct ucred *cred; 1839 struct proc *proc; 1840 { 1841 u_int32_t *tl; 1842 caddr_t cp; 1843 int32_t t1, t2; 1844 caddr_t bpos, dpos, cp2; 1845 int error = 0, wccflag = NFSV3_WCCRATTR; 1846 struct mbuf *mreq, *mrep, *md, *mb; 1847 const int v3 = NFS_ISV3(dvp); 1848 int rexmit; 1849 struct nfsnode *dnp = VTONFS(dvp); 1850 1851 nfsstats.rpccnt[NFSPROC_REMOVE]++; 1852 nfsm_reqhead(dnp, NFSPROC_REMOVE, 1853 NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(namelen)); 1854 nfsm_fhtom(dnp, v3); 1855 nfsm_strtom(name, namelen, NFS_MAXNAMLEN); 1856 nfsm_request1(dnp, NFSPROC_REMOVE, proc, cred, &rexmit); 1857 if (v3) 1858 nfsm_wcc_data(dvp, wccflag, 0); 1859 nfsm_reqdone; 1860 VTONFS(dvp)->n_flag |= NMODIFIED; 1861 if (!wccflag) 1862 NFS_INVALIDATE_ATTRCACHE(VTONFS(dvp)); 1863 /* 1864 * Kludge City: If the first reply to the remove rpc is lost.. 1865 * the reply to the retransmitted request will be ENOENT 1866 * since the file was in fact removed 1867 * Therefore, we cheat and return success. 1868 */ 1869 if (rexmit && error == ENOENT) 1870 error = 0; 1871 return (error); 1872 } 1873 1874 /* 1875 * nfs file rename call 1876 */ 1877 int 1878 nfs_rename(v) 1879 void *v; 1880 { 1881 struct vop_rename_args /* { 1882 struct vnode *a_fdvp; 1883 struct vnode *a_fvp; 1884 struct componentname *a_fcnp; 1885 struct vnode *a_tdvp; 1886 struct vnode *a_tvp; 1887 struct componentname *a_tcnp; 1888 } */ *ap = v; 1889 struct vnode *fvp = ap->a_fvp; 1890 struct vnode *tvp = ap->a_tvp; 1891 struct vnode *fdvp = ap->a_fdvp; 1892 struct vnode *tdvp = ap->a_tdvp; 1893 struct componentname *tcnp = ap->a_tcnp; 1894 struct componentname *fcnp = ap->a_fcnp; 1895 int error; 1896 1897 #ifndef DIAGNOSTIC 1898 if ((tcnp->cn_flags & HASBUF) == 0 || 1899 (fcnp->cn_flags & HASBUF) == 0) 1900 panic("nfs_rename: no name"); 1901 #endif 1902 /* Check for cross-device rename */ 1903 if ((fvp->v_mount != tdvp->v_mount) || 1904 (tvp && (fvp->v_mount != tvp->v_mount))) { 1905 error = EXDEV; 1906 goto out; 1907 } 1908 1909 /* 1910 * If the tvp exists and is in use, sillyrename it before doing the 1911 * rename of the new file over it. 1912 */ 1913 if (tvp && tvp->v_usecount > 1 && !VTONFS(tvp)->n_sillyrename && 1914 tvp->v_type != VDIR && !nfs_sillyrename(tdvp, tvp, tcnp)) { 1915 VN_KNOTE(tvp, NOTE_DELETE); 1916 vput(tvp); 1917 tvp = NULL; 1918 } 1919 1920 error = nfs_renamerpc(fdvp, fcnp->cn_nameptr, fcnp->cn_namelen, 1921 tdvp, tcnp->cn_nameptr, tcnp->cn_namelen, tcnp->cn_cred, 1922 tcnp->cn_proc); 1923 1924 VN_KNOTE(fdvp, NOTE_WRITE); 1925 VN_KNOTE(tdvp, NOTE_WRITE); 1926 if (fvp->v_type == VDIR) { 1927 if (tvp != NULL && tvp->v_type == VDIR) 1928 cache_purge(tdvp); 1929 cache_purge(fdvp); 1930 } 1931 out: 1932 if (tdvp == tvp) 1933 vrele(tdvp); 1934 else 1935 vput(tdvp); 1936 if (tvp) 1937 vput(tvp); 1938 vrele(fdvp); 1939 vrele(fvp); 1940 return (error); 1941 } 1942 1943 /* 1944 * nfs file rename rpc called from nfs_remove() above 1945 */ 1946 int 1947 nfs_renameit(sdvp, scnp, sp) 1948 struct vnode *sdvp; 1949 struct componentname *scnp; 1950 struct sillyrename *sp; 1951 { 1952 return (nfs_renamerpc(sdvp, scnp->cn_nameptr, scnp->cn_namelen, 1953 sdvp, sp->s_name, sp->s_namlen, scnp->cn_cred, scnp->cn_proc)); 1954 } 1955 1956 /* 1957 * Do an nfs rename rpc. Called from nfs_rename() and nfs_renameit(). 1958 */ 1959 int 1960 nfs_renamerpc(fdvp, fnameptr, fnamelen, tdvp, tnameptr, tnamelen, cred, proc) 1961 struct vnode *fdvp; 1962 const char *fnameptr; 1963 int fnamelen; 1964 struct vnode *tdvp; 1965 const char *tnameptr; 1966 int tnamelen; 1967 struct ucred *cred; 1968 struct proc *proc; 1969 { 1970 u_int32_t *tl; 1971 caddr_t cp; 1972 int32_t t1, t2; 1973 caddr_t bpos, dpos, cp2; 1974 int error = 0, fwccflag = NFSV3_WCCRATTR, twccflag = NFSV3_WCCRATTR; 1975 struct mbuf *mreq, *mrep, *md, *mb; 1976 const int v3 = NFS_ISV3(fdvp); 1977 int rexmit; 1978 struct nfsnode *fdnp = VTONFS(fdvp); 1979 1980 nfsstats.rpccnt[NFSPROC_RENAME]++; 1981 nfsm_reqhead(fdnp, NFSPROC_RENAME, 1982 (NFSX_FH(v3) + NFSX_UNSIGNED)*2 + nfsm_rndup(fnamelen) + 1983 nfsm_rndup(tnamelen)); 1984 nfsm_fhtom(fdnp, v3); 1985 nfsm_strtom(fnameptr, fnamelen, NFS_MAXNAMLEN); 1986 nfsm_fhtom(VTONFS(tdvp), v3); 1987 nfsm_strtom(tnameptr, tnamelen, NFS_MAXNAMLEN); 1988 nfsm_request1(fdnp, NFSPROC_RENAME, proc, cred, &rexmit); 1989 if (v3) { 1990 nfsm_wcc_data(fdvp, fwccflag, 0); 1991 nfsm_wcc_data(tdvp, twccflag, 0); 1992 } 1993 nfsm_reqdone; 1994 VTONFS(fdvp)->n_flag |= NMODIFIED; 1995 VTONFS(tdvp)->n_flag |= NMODIFIED; 1996 if (!fwccflag) 1997 NFS_INVALIDATE_ATTRCACHE(VTONFS(fdvp)); 1998 if (!twccflag) 1999 NFS_INVALIDATE_ATTRCACHE(VTONFS(tdvp)); 2000 /* 2001 * Kludge: Map ENOENT => 0 assuming that it is a reply to a retry. 2002 */ 2003 if (rexmit && error == ENOENT) 2004 error = 0; 2005 return (error); 2006 } 2007 2008 /* 2009 * nfs hard link create call 2010 */ 2011 int 2012 nfs_link(v) 2013 void *v; 2014 { 2015 struct vop_link_args /* { 2016 struct vnode *a_dvp; 2017 struct vnode *a_vp; 2018 struct componentname *a_cnp; 2019 } */ *ap = v; 2020 struct vnode *vp = ap->a_vp; 2021 struct vnode *dvp = ap->a_dvp; 2022 struct componentname *cnp = ap->a_cnp; 2023 u_int32_t *tl; 2024 caddr_t cp; 2025 int32_t t1, t2; 2026 caddr_t bpos, dpos, cp2; 2027 int error = 0, wccflag = NFSV3_WCCRATTR, attrflag = 0; 2028 struct mbuf *mreq, *mrep, *md, *mb; 2029 /* XXX Should be const and initialised? */ 2030 int v3; 2031 int rexmit; 2032 struct nfsnode *np; 2033 2034 if (dvp->v_mount != vp->v_mount) { 2035 VOP_ABORTOP(dvp, cnp); 2036 vput(dvp); 2037 return (EXDEV); 2038 } 2039 if (dvp != vp) { 2040 error = vn_lock(vp, LK_EXCLUSIVE); 2041 if (error != 0) { 2042 VOP_ABORTOP(dvp, cnp); 2043 vput(dvp); 2044 return error; 2045 } 2046 } 2047 2048 /* 2049 * Push all writes to the server, so that the attribute cache 2050 * doesn't get "out of sync" with the server. 2051 * XXX There should be a better way! 2052 */ 2053 VOP_FSYNC(vp, cnp->cn_cred, FSYNC_WAIT, 0, 0, cnp->cn_proc); 2054 2055 v3 = NFS_ISV3(vp); 2056 nfsstats.rpccnt[NFSPROC_LINK]++; 2057 np = VTONFS(vp); 2058 nfsm_reqhead(np, NFSPROC_LINK, 2059 NFSX_FH(v3)*2 + NFSX_UNSIGNED + nfsm_rndup(cnp->cn_namelen)); 2060 nfsm_fhtom(np, v3); 2061 nfsm_fhtom(VTONFS(dvp), v3); 2062 nfsm_strtom(cnp->cn_nameptr, cnp->cn_namelen, NFS_MAXNAMLEN); 2063 nfsm_request1(np, NFSPROC_LINK, cnp->cn_proc, cnp->cn_cred, &rexmit); 2064 if (v3) { 2065 nfsm_postop_attr(vp, attrflag, 0); 2066 nfsm_wcc_data(dvp, wccflag, 0); 2067 } 2068 nfsm_reqdone; 2069 PNBUF_PUT(cnp->cn_pnbuf); 2070 VTONFS(dvp)->n_flag |= NMODIFIED; 2071 if (!attrflag) 2072 NFS_INVALIDATE_ATTRCACHE(VTONFS(vp)); 2073 if (!wccflag) 2074 NFS_INVALIDATE_ATTRCACHE(VTONFS(dvp)); 2075 if (dvp != vp) 2076 VOP_UNLOCK(vp, 0); 2077 VN_KNOTE(vp, NOTE_LINK); 2078 VN_KNOTE(dvp, NOTE_WRITE); 2079 vput(dvp); 2080 /* 2081 * Kludge: Map EEXIST => 0 assuming that it is a reply to a retry. 2082 */ 2083 if (rexmit && error == EEXIST) 2084 error = 0; 2085 return (error); 2086 } 2087 2088 /* 2089 * nfs symbolic link create call 2090 */ 2091 int 2092 nfs_symlink(v) 2093 void *v; 2094 { 2095 struct vop_symlink_args /* { 2096 struct vnode *a_dvp; 2097 struct vnode **a_vpp; 2098 struct componentname *a_cnp; 2099 struct vattr *a_vap; 2100 char *a_target; 2101 } */ *ap = v; 2102 struct vnode *dvp = ap->a_dvp; 2103 struct vattr *vap = ap->a_vap; 2104 struct componentname *cnp = ap->a_cnp; 2105 struct nfsv2_sattr *sp; 2106 u_int32_t *tl; 2107 caddr_t cp; 2108 int32_t t1, t2; 2109 caddr_t bpos, dpos, cp2; 2110 int slen, error = 0, wccflag = NFSV3_WCCRATTR, gotvp; 2111 struct mbuf *mreq, *mrep, *md, *mb; 2112 struct vnode *newvp = (struct vnode *)0; 2113 const int v3 = NFS_ISV3(dvp); 2114 int rexmit; 2115 struct nfsnode *dnp = VTONFS(dvp); 2116 2117 *ap->a_vpp = NULL; 2118 nfsstats.rpccnt[NFSPROC_SYMLINK]++; 2119 slen = strlen(ap->a_target); 2120 nfsm_reqhead(dnp, NFSPROC_SYMLINK, NFSX_FH(v3) + 2*NFSX_UNSIGNED + 2121 nfsm_rndup(cnp->cn_namelen) + nfsm_rndup(slen) + NFSX_SATTR(v3)); 2122 nfsm_fhtom(dnp, v3); 2123 nfsm_strtom(cnp->cn_nameptr, cnp->cn_namelen, NFS_MAXNAMLEN); 2124 if (v3) 2125 nfsm_v3attrbuild(vap, FALSE); 2126 nfsm_strtom(ap->a_target, slen, NFS_MAXPATHLEN); 2127 if (!v3) { 2128 nfsm_build(sp, struct nfsv2_sattr *, NFSX_V2SATTR); 2129 sp->sa_mode = vtonfsv2_mode(VLNK, vap->va_mode); 2130 sp->sa_uid = nfs_xdrneg1; 2131 sp->sa_gid = nfs_xdrneg1; 2132 sp->sa_size = nfs_xdrneg1; 2133 txdr_nfsv2time(&vap->va_atime, &sp->sa_atime); 2134 txdr_nfsv2time(&vap->va_mtime, &sp->sa_mtime); 2135 } 2136 nfsm_request1(dnp, NFSPROC_SYMLINK, cnp->cn_proc, cnp->cn_cred, 2137 &rexmit); 2138 if (v3) { 2139 if (!error) 2140 nfsm_mtofh(dvp, newvp, v3, gotvp); 2141 nfsm_wcc_data(dvp, wccflag, 0); 2142 } 2143 nfsm_reqdone; 2144 /* 2145 * Kludge: Map EEXIST => 0 assuming that it is a reply to a retry. 2146 */ 2147 if (rexmit && error == EEXIST) 2148 error = 0; 2149 if (error == 0 && newvp == NULL) { 2150 struct nfsnode *np = NULL; 2151 2152 error = nfs_lookitup(dvp, cnp->cn_nameptr, cnp->cn_namelen, 2153 cnp->cn_cred, cnp->cn_proc, &np); 2154 if (error == 0) 2155 newvp = NFSTOV(np); 2156 } 2157 if (error) { 2158 if (newvp != NULL) 2159 vput(newvp); 2160 } else { 2161 *ap->a_vpp = newvp; 2162 } 2163 PNBUF_PUT(cnp->cn_pnbuf); 2164 VTONFS(dvp)->n_flag |= NMODIFIED; 2165 if (!wccflag) 2166 NFS_INVALIDATE_ATTRCACHE(VTONFS(dvp)); 2167 VN_KNOTE(dvp, NOTE_WRITE); 2168 vput(dvp); 2169 return (error); 2170 } 2171 2172 /* 2173 * nfs make dir call 2174 */ 2175 int 2176 nfs_mkdir(v) 2177 void *v; 2178 { 2179 struct vop_mkdir_args /* { 2180 struct vnode *a_dvp; 2181 struct vnode **a_vpp; 2182 struct componentname *a_cnp; 2183 struct vattr *a_vap; 2184 } */ *ap = v; 2185 struct vnode *dvp = ap->a_dvp; 2186 struct vattr *vap = ap->a_vap; 2187 struct componentname *cnp = ap->a_cnp; 2188 struct nfsv2_sattr *sp; 2189 u_int32_t *tl; 2190 caddr_t cp; 2191 int32_t t1, t2; 2192 int len; 2193 struct nfsnode *dnp = VTONFS(dvp), *np = (struct nfsnode *)0; 2194 struct vnode *newvp = (struct vnode *)0; 2195 caddr_t bpos, dpos, cp2; 2196 int error = 0, wccflag = NFSV3_WCCRATTR; 2197 int gotvp = 0; 2198 int rexmit; 2199 struct mbuf *mreq, *mrep, *md, *mb; 2200 const int v3 = NFS_ISV3(dvp); 2201 2202 len = cnp->cn_namelen; 2203 nfsstats.rpccnt[NFSPROC_MKDIR]++; 2204 nfsm_reqhead(dnp, NFSPROC_MKDIR, 2205 NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(len) + NFSX_SATTR(v3)); 2206 nfsm_fhtom(dnp, v3); 2207 nfsm_strtom(cnp->cn_nameptr, len, NFS_MAXNAMLEN); 2208 if (v3) { 2209 nfsm_v3attrbuild(vap, FALSE); 2210 } else { 2211 nfsm_build(sp, struct nfsv2_sattr *, NFSX_V2SATTR); 2212 sp->sa_mode = vtonfsv2_mode(VDIR, vap->va_mode); 2213 sp->sa_uid = nfs_xdrneg1; 2214 sp->sa_gid = nfs_xdrneg1; 2215 sp->sa_size = nfs_xdrneg1; 2216 txdr_nfsv2time(&vap->va_atime, &sp->sa_atime); 2217 txdr_nfsv2time(&vap->va_mtime, &sp->sa_mtime); 2218 } 2219 nfsm_request1(dnp, NFSPROC_MKDIR, cnp->cn_proc, cnp->cn_cred, &rexmit); 2220 if (!error) 2221 nfsm_mtofh(dvp, newvp, v3, gotvp); 2222 if (v3) 2223 nfsm_wcc_data(dvp, wccflag, 0); 2224 nfsm_reqdone; 2225 VTONFS(dvp)->n_flag |= NMODIFIED; 2226 if (!wccflag) 2227 NFS_INVALIDATE_ATTRCACHE(VTONFS(dvp)); 2228 /* 2229 * Kludge: Map EEXIST => 0 assuming that you have a reply to a retry 2230 * if we can succeed in looking up the directory. 2231 */ 2232 if ((rexmit && error == EEXIST) || (!error && !gotvp)) { 2233 if (newvp) { 2234 vput(newvp); 2235 newvp = (struct vnode *)0; 2236 } 2237 error = nfs_lookitup(dvp, cnp->cn_nameptr, len, cnp->cn_cred, 2238 cnp->cn_proc, &np); 2239 if (!error) { 2240 newvp = NFSTOV(np); 2241 if (newvp->v_type != VDIR || newvp == dvp) 2242 error = EEXIST; 2243 } 2244 } 2245 if (error) { 2246 if (newvp) { 2247 if (dvp != newvp) 2248 vput(newvp); 2249 else 2250 vrele(newvp); 2251 } 2252 } else { 2253 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK); 2254 if (cnp->cn_flags & MAKEENTRY) 2255 nfs_cache_enter(dvp, newvp, cnp); 2256 *ap->a_vpp = newvp; 2257 } 2258 PNBUF_PUT(cnp->cn_pnbuf); 2259 vput(dvp); 2260 return (error); 2261 } 2262 2263 /* 2264 * nfs remove directory call 2265 */ 2266 int 2267 nfs_rmdir(v) 2268 void *v; 2269 { 2270 struct vop_rmdir_args /* { 2271 struct vnode *a_dvp; 2272 struct vnode *a_vp; 2273 struct componentname *a_cnp; 2274 } */ *ap = v; 2275 struct vnode *vp = ap->a_vp; 2276 struct vnode *dvp = ap->a_dvp; 2277 struct componentname *cnp = ap->a_cnp; 2278 u_int32_t *tl; 2279 caddr_t cp; 2280 int32_t t1, t2; 2281 caddr_t bpos, dpos, cp2; 2282 int error = 0, wccflag = NFSV3_WCCRATTR; 2283 int rexmit; 2284 struct mbuf *mreq, *mrep, *md, *mb; 2285 const int v3 = NFS_ISV3(dvp); 2286 struct nfsnode *dnp; 2287 2288 if (dvp == vp) { 2289 vrele(dvp); 2290 vput(dvp); 2291 PNBUF_PUT(cnp->cn_pnbuf); 2292 return (EINVAL); 2293 } 2294 nfsstats.rpccnt[NFSPROC_RMDIR]++; 2295 dnp = VTONFS(dvp); 2296 nfsm_reqhead(dnp, NFSPROC_RMDIR, 2297 NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(cnp->cn_namelen)); 2298 nfsm_fhtom(dnp, v3); 2299 nfsm_strtom(cnp->cn_nameptr, cnp->cn_namelen, NFS_MAXNAMLEN); 2300 nfsm_request1(dnp, NFSPROC_RMDIR, cnp->cn_proc, cnp->cn_cred, &rexmit); 2301 if (v3) 2302 nfsm_wcc_data(dvp, wccflag, 0); 2303 nfsm_reqdone; 2304 PNBUF_PUT(cnp->cn_pnbuf); 2305 VTONFS(dvp)->n_flag |= NMODIFIED; 2306 if (!wccflag) 2307 NFS_INVALIDATE_ATTRCACHE(VTONFS(dvp)); 2308 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK); 2309 VN_KNOTE(vp, NOTE_DELETE); 2310 cache_purge(vp); 2311 vput(vp); 2312 vput(dvp); 2313 /* 2314 * Kludge: Map ENOENT => 0 assuming that you have a reply to a retry. 2315 */ 2316 if (rexmit && error == ENOENT) 2317 error = 0; 2318 return (error); 2319 } 2320 2321 /* 2322 * nfs readdir call 2323 */ 2324 int 2325 nfs_readdir(v) 2326 void *v; 2327 { 2328 struct vop_readdir_args /* { 2329 struct vnode *a_vp; 2330 struct uio *a_uio; 2331 struct ucred *a_cred; 2332 int *a_eofflag; 2333 off_t **a_cookies; 2334 int *a_ncookies; 2335 } */ *ap = v; 2336 struct vnode *vp = ap->a_vp; 2337 struct uio *uio = ap->a_uio; 2338 struct nfsmount *nmp = VFSTONFS(vp->v_mount); 2339 char *base = uio->uio_iov->iov_base; 2340 int tresid, error; 2341 size_t count, lost; 2342 struct dirent *dp; 2343 off_t *cookies = NULL; 2344 int ncookies = 0, nc; 2345 2346 if (vp->v_type != VDIR) 2347 return (EPERM); 2348 2349 lost = uio->uio_resid & (NFS_DIRFRAGSIZ - 1); 2350 count = uio->uio_resid - lost; 2351 if (count <= 0) 2352 return (EINVAL); 2353 2354 /* 2355 * Call nfs_bioread() to do the real work. 2356 */ 2357 tresid = uio->uio_resid = count; 2358 error = nfs_bioread(vp, uio, 0, ap->a_cred, 2359 ap->a_cookies ? NFSBIO_CACHECOOKIES : 0); 2360 2361 if (!error && ap->a_cookies) { 2362 ncookies = count / 16; 2363 cookies = malloc(sizeof (off_t) * ncookies, M_TEMP, M_WAITOK); 2364 *ap->a_cookies = cookies; 2365 } 2366 2367 if (!error && uio->uio_resid == tresid) { 2368 uio->uio_resid += lost; 2369 nfsstats.direofcache_misses++; 2370 if (ap->a_cookies) 2371 *ap->a_ncookies = 0; 2372 *ap->a_eofflag = 1; 2373 return (0); 2374 } 2375 2376 if (!error && ap->a_cookies) { 2377 /* 2378 * Only the NFS server and emulations use cookies, and they 2379 * load the directory block into system space, so we can 2380 * just look at it directly. 2381 */ 2382 if (uio->uio_segflg != UIO_SYSSPACE || uio->uio_iovcnt != 1) 2383 panic("nfs_readdir: lost in space"); 2384 for (nc = 0; ncookies-- && 2385 base < (char *)uio->uio_iov->iov_base; nc++){ 2386 dp = (struct dirent *) base; 2387 if (dp->d_reclen == 0) 2388 break; 2389 if (nmp->nm_flag & NFSMNT_XLATECOOKIE) 2390 *(cookies++) = (off_t)NFS_GETCOOKIE32(dp); 2391 else 2392 *(cookies++) = NFS_GETCOOKIE(dp); 2393 base += dp->d_reclen; 2394 } 2395 uio->uio_resid += 2396 ((caddr_t)uio->uio_iov->iov_base - base); 2397 uio->uio_iov->iov_len += 2398 ((caddr_t)uio->uio_iov->iov_base - base); 2399 uio->uio_iov->iov_base = base; 2400 *ap->a_ncookies = nc; 2401 } 2402 2403 uio->uio_resid += lost; 2404 *ap->a_eofflag = 0; 2405 return (error); 2406 } 2407 2408 /* 2409 * Readdir rpc call. 2410 * Called from below the buffer cache by nfs_doio(). 2411 */ 2412 int 2413 nfs_readdirrpc(vp, uiop, cred) 2414 struct vnode *vp; 2415 struct uio *uiop; 2416 struct ucred *cred; 2417 { 2418 int len, left; 2419 struct dirent *dp = NULL; 2420 u_int32_t *tl; 2421 caddr_t cp; 2422 int32_t t1, t2; 2423 caddr_t bpos, dpos, cp2; 2424 struct mbuf *mreq, *mrep, *md, *mb; 2425 struct nfsmount *nmp = VFSTONFS(vp->v_mount); 2426 struct nfsnode *dnp = VTONFS(vp); 2427 u_quad_t fileno; 2428 int error = 0, tlen, more_dirs = 1, blksiz = 0, bigenough = 1; 2429 int attrflag, nrpcs = 0, reclen; 2430 const int v3 = NFS_ISV3(vp); 2431 2432 #ifdef DIAGNOSTIC 2433 /* 2434 * Should be called from buffer cache, so only amount of 2435 * NFS_DIRBLKSIZ will be requested. 2436 */ 2437 if (uiop->uio_iovcnt != 1 || (uiop->uio_resid & (NFS_DIRBLKSIZ - 1))) 2438 panic("nfs readdirrpc bad uio"); 2439 #endif 2440 2441 /* 2442 * Loop around doing readdir rpc's of size nm_readdirsize 2443 * truncated to a multiple of NFS_DIRFRAGSIZ. 2444 * The stopping criteria is EOF or buffer full. 2445 */ 2446 while (more_dirs && bigenough) { 2447 /* 2448 * Heuristic: don't bother to do another RPC to further 2449 * fill up this block if there is not much room left. (< 50% 2450 * of the readdir RPC size). This wastes some buffer space 2451 * but can save up to 50% in RPC calls. 2452 */ 2453 if (nrpcs > 0 && uiop->uio_resid < (nmp->nm_readdirsize / 2)) { 2454 bigenough = 0; 2455 break; 2456 } 2457 nfsstats.rpccnt[NFSPROC_READDIR]++; 2458 nfsm_reqhead(dnp, NFSPROC_READDIR, NFSX_FH(v3) + 2459 NFSX_READDIR(v3)); 2460 nfsm_fhtom(dnp, v3); 2461 if (v3) { 2462 nfsm_build(tl, u_int32_t *, 5 * NFSX_UNSIGNED); 2463 if (nmp->nm_iflag & NFSMNT_SWAPCOOKIE) { 2464 txdr_swapcookie3(uiop->uio_offset, tl); 2465 } else { 2466 txdr_cookie3(uiop->uio_offset, tl); 2467 } 2468 tl += 2; 2469 *tl++ = dnp->n_cookieverf.nfsuquad[0]; 2470 *tl++ = dnp->n_cookieverf.nfsuquad[1]; 2471 } else { 2472 nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 2473 *tl++ = txdr_unsigned(uiop->uio_offset); 2474 } 2475 *tl = txdr_unsigned(nmp->nm_readdirsize); 2476 nfsm_request(dnp, NFSPROC_READDIR, uiop->uio_procp, cred); 2477 nrpcs++; 2478 if (v3) { 2479 nfsm_postop_attr(vp, attrflag, 0); 2480 if (!error) { 2481 nfsm_dissect(tl, u_int32_t *, 2482 2 * NFSX_UNSIGNED); 2483 dnp->n_cookieverf.nfsuquad[0] = *tl++; 2484 dnp->n_cookieverf.nfsuquad[1] = *tl; 2485 } else { 2486 m_freem(mrep); 2487 goto nfsmout; 2488 } 2489 } 2490 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); 2491 more_dirs = fxdr_unsigned(int, *tl); 2492 2493 /* loop thru the dir entries, doctoring them to 4bsd form */ 2494 while (more_dirs && bigenough) { 2495 if (v3) { 2496 nfsm_dissect(tl, u_int32_t *, 2497 3 * NFSX_UNSIGNED); 2498 fileno = fxdr_hyper(tl); 2499 len = fxdr_unsigned(int, *(tl + 2)); 2500 } else { 2501 nfsm_dissect(tl, u_int32_t *, 2502 2 * NFSX_UNSIGNED); 2503 fileno = fxdr_unsigned(u_quad_t, *tl++); 2504 len = fxdr_unsigned(int, *tl); 2505 } 2506 if (len <= 0 || len > NFS_MAXNAMLEN) { 2507 error = EBADRPC; 2508 m_freem(mrep); 2509 goto nfsmout; 2510 } 2511 tlen = nfsm_rndup(len); 2512 if (tlen == len) 2513 tlen += 4; /* To ensure null termination */ 2514 tlen += sizeof (off_t) + sizeof (int); 2515 reclen = ALIGN(tlen + DIRHDSIZ); 2516 tlen = reclen - DIRHDSIZ; 2517 left = NFS_DIRFRAGSIZ - blksiz; 2518 if (reclen > left) { 2519 dp->d_reclen += left; 2520 uiop->uio_iov->iov_base = 2521 (caddr_t)uiop->uio_iov->iov_base + left; 2522 uiop->uio_iov->iov_len -= left; 2523 uiop->uio_resid -= left; 2524 blksiz = 0; 2525 NFS_STASHCOOKIE(dp, uiop->uio_offset); 2526 } 2527 if (reclen > uiop->uio_resid) 2528 bigenough = 0; 2529 if (bigenough) { 2530 dp = (struct dirent *)uiop->uio_iov->iov_base; 2531 dp->d_fileno = (int)fileno; 2532 dp->d_namlen = len; 2533 dp->d_reclen = reclen; 2534 dp->d_type = DT_UNKNOWN; 2535 blksiz += dp->d_reclen; 2536 if (blksiz == NFS_DIRFRAGSIZ) 2537 blksiz = 0; 2538 uiop->uio_resid -= DIRHDSIZ; 2539 uiop->uio_iov->iov_base = 2540 (caddr_t)uiop->uio_iov->iov_base + DIRHDSIZ; 2541 uiop->uio_iov->iov_len -= DIRHDSIZ; 2542 nfsm_mtouio(uiop, len); 2543 cp = uiop->uio_iov->iov_base; 2544 tlen -= len; 2545 *cp = '\0'; /* null terminate */ 2546 uiop->uio_iov->iov_base = 2547 (caddr_t)uiop->uio_iov->iov_base + tlen; 2548 uiop->uio_iov->iov_len -= tlen; 2549 uiop->uio_resid -= tlen; 2550 } else 2551 nfsm_adv(nfsm_rndup(len)); 2552 if (v3) { 2553 nfsm_dissect(tl, u_int32_t *, 2554 3 * NFSX_UNSIGNED); 2555 } else { 2556 nfsm_dissect(tl, u_int32_t *, 2557 2 * NFSX_UNSIGNED); 2558 } 2559 if (bigenough) { 2560 if (v3) { 2561 if (nmp->nm_iflag & NFSMNT_SWAPCOOKIE) 2562 uiop->uio_offset = 2563 fxdr_swapcookie3(tl); 2564 else 2565 uiop->uio_offset = 2566 fxdr_cookie3(tl); 2567 } 2568 else { 2569 uiop->uio_offset = 2570 fxdr_unsigned(off_t, *tl); 2571 } 2572 NFS_STASHCOOKIE(dp, uiop->uio_offset); 2573 } 2574 if (v3) 2575 tl += 2; 2576 else 2577 tl++; 2578 more_dirs = fxdr_unsigned(int, *tl); 2579 } 2580 /* 2581 * If at end of rpc data, get the eof boolean 2582 */ 2583 if (!more_dirs) { 2584 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); 2585 more_dirs = (fxdr_unsigned(int, *tl) == 0); 2586 } 2587 m_freem(mrep); 2588 } 2589 /* 2590 * Fill last record, iff any, out to a multiple of NFS_DIRFRAGSIZ 2591 * by increasing d_reclen for the last record. 2592 */ 2593 if (blksiz > 0) { 2594 left = NFS_DIRFRAGSIZ - blksiz; 2595 dp->d_reclen += left; 2596 NFS_STASHCOOKIE(dp, uiop->uio_offset); 2597 uiop->uio_iov->iov_base = (caddr_t)uiop->uio_iov->iov_base + 2598 left; 2599 uiop->uio_iov->iov_len -= left; 2600 uiop->uio_resid -= left; 2601 } 2602 2603 /* 2604 * We are now either at the end of the directory or have filled the 2605 * block. 2606 */ 2607 if (bigenough) 2608 dnp->n_direofoffset = uiop->uio_offset; 2609 nfsmout: 2610 return (error); 2611 } 2612 2613 /* 2614 * NFS V3 readdir plus RPC. Used in place of nfs_readdirrpc(). 2615 */ 2616 int 2617 nfs_readdirplusrpc(vp, uiop, cred) 2618 struct vnode *vp; 2619 struct uio *uiop; 2620 struct ucred *cred; 2621 { 2622 int len, left; 2623 struct dirent *dp = NULL; 2624 u_int32_t *tl; 2625 caddr_t cp; 2626 int32_t t1, t2; 2627 struct vnode *newvp; 2628 caddr_t bpos, dpos, cp2; 2629 struct mbuf *mreq, *mrep, *md, *mb; 2630 struct nameidata nami, *ndp = &nami; 2631 struct componentname *cnp = &ndp->ni_cnd; 2632 struct nfsmount *nmp = VFSTONFS(vp->v_mount); 2633 struct nfsnode *dnp = VTONFS(vp), *np; 2634 nfsfh_t *fhp; 2635 u_quad_t fileno; 2636 int error = 0, tlen, more_dirs = 1, blksiz = 0, doit, bigenough = 1, i; 2637 int attrflag, fhsize, nrpcs = 0, reclen; 2638 struct nfs_fattr fattr, *fp; 2639 2640 #ifdef DIAGNOSTIC 2641 if (uiop->uio_iovcnt != 1 || (uiop->uio_resid & (NFS_DIRBLKSIZ - 1))) 2642 panic("nfs readdirplusrpc bad uio"); 2643 #endif 2644 ndp->ni_dvp = vp; 2645 newvp = NULLVP; 2646 2647 /* 2648 * Loop around doing readdir rpc's of size nm_readdirsize 2649 * truncated to a multiple of NFS_DIRFRAGSIZ. 2650 * The stopping criteria is EOF or buffer full. 2651 */ 2652 while (more_dirs && bigenough) { 2653 if (nrpcs > 0 && uiop->uio_resid < (nmp->nm_readdirsize / 2)) { 2654 bigenough = 0; 2655 break; 2656 } 2657 nfsstats.rpccnt[NFSPROC_READDIRPLUS]++; 2658 nfsm_reqhead(dnp, NFSPROC_READDIRPLUS, 2659 NFSX_FH(1) + 6 * NFSX_UNSIGNED); 2660 nfsm_fhtom(dnp, 1); 2661 nfsm_build(tl, u_int32_t *, 6 * NFSX_UNSIGNED); 2662 if (nmp->nm_iflag & NFSMNT_SWAPCOOKIE) { 2663 txdr_swapcookie3(uiop->uio_offset, tl); 2664 } else { 2665 txdr_cookie3(uiop->uio_offset, tl); 2666 } 2667 tl += 2; 2668 *tl++ = dnp->n_cookieverf.nfsuquad[0]; 2669 *tl++ = dnp->n_cookieverf.nfsuquad[1]; 2670 *tl++ = txdr_unsigned(nmp->nm_readdirsize); 2671 *tl = txdr_unsigned(nmp->nm_rsize); 2672 nfsm_request(dnp, NFSPROC_READDIRPLUS, uiop->uio_procp, cred); 2673 nfsm_postop_attr(vp, attrflag, 0); 2674 if (error) { 2675 m_freem(mrep); 2676 goto nfsmout; 2677 } 2678 nrpcs++; 2679 nfsm_dissect(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 2680 dnp->n_cookieverf.nfsuquad[0] = *tl++; 2681 dnp->n_cookieverf.nfsuquad[1] = *tl++; 2682 more_dirs = fxdr_unsigned(int, *tl); 2683 2684 /* loop thru the dir entries, doctoring them to 4bsd form */ 2685 while (more_dirs && bigenough) { 2686 nfsm_dissect(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 2687 fileno = fxdr_hyper(tl); 2688 len = fxdr_unsigned(int, *(tl + 2)); 2689 if (len <= 0 || len > NFS_MAXNAMLEN) { 2690 error = EBADRPC; 2691 m_freem(mrep); 2692 goto nfsmout; 2693 } 2694 tlen = nfsm_rndup(len); 2695 if (tlen == len) 2696 tlen += 4; /* To ensure null termination*/ 2697 tlen += sizeof (off_t) + sizeof (int); 2698 reclen = ALIGN(tlen + DIRHDSIZ); 2699 tlen = reclen - DIRHDSIZ; 2700 left = NFS_DIRFRAGSIZ - blksiz; 2701 if (reclen > left) { 2702 /* 2703 * DIRFRAGSIZ is aligned, no need to align 2704 * again here. 2705 */ 2706 dp->d_reclen += left; 2707 uiop->uio_iov->iov_base = 2708 (caddr_t)uiop->uio_iov->iov_base + left; 2709 uiop->uio_iov->iov_len -= left; 2710 uiop->uio_resid -= left; 2711 NFS_STASHCOOKIE(dp, uiop->uio_offset); 2712 blksiz = 0; 2713 } 2714 if (reclen > uiop->uio_resid) 2715 bigenough = 0; 2716 if (bigenough) { 2717 dp = (struct dirent *)uiop->uio_iov->iov_base; 2718 dp->d_fileno = (int)fileno; 2719 dp->d_namlen = len; 2720 dp->d_reclen = reclen; 2721 dp->d_type = DT_UNKNOWN; 2722 blksiz += dp->d_reclen; 2723 if (blksiz == NFS_DIRFRAGSIZ) 2724 blksiz = 0; 2725 uiop->uio_resid -= DIRHDSIZ; 2726 uiop->uio_iov->iov_base = 2727 (caddr_t)uiop->uio_iov->iov_base + 2728 DIRHDSIZ; 2729 uiop->uio_iov->iov_len -= DIRHDSIZ; 2730 cnp->cn_nameptr = uiop->uio_iov->iov_base; 2731 cnp->cn_namelen = len; 2732 nfsm_mtouio(uiop, len); 2733 cp = uiop->uio_iov->iov_base; 2734 tlen -= len; 2735 *cp = '\0'; 2736 uiop->uio_iov->iov_base = 2737 (caddr_t)uiop->uio_iov->iov_base + tlen; 2738 uiop->uio_iov->iov_len -= tlen; 2739 uiop->uio_resid -= tlen; 2740 } else 2741 nfsm_adv(nfsm_rndup(len)); 2742 nfsm_dissect(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 2743 if (bigenough) { 2744 if (nmp->nm_iflag & NFSMNT_SWAPCOOKIE) 2745 uiop->uio_offset = 2746 fxdr_swapcookie3(tl); 2747 else 2748 uiop->uio_offset = 2749 fxdr_cookie3(tl); 2750 NFS_STASHCOOKIE(dp, uiop->uio_offset); 2751 } 2752 tl += 2; 2753 2754 /* 2755 * Since the attributes are before the file handle 2756 * (sigh), we must skip over the attributes and then 2757 * come back and get them. 2758 */ 2759 attrflag = fxdr_unsigned(int, *tl); 2760 if (attrflag) { 2761 nfsm_dissect(fp, struct nfs_fattr *, NFSX_V3FATTR); 2762 memcpy(&fattr, fp, NFSX_V3FATTR); 2763 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); 2764 doit = fxdr_unsigned(int, *tl); 2765 if (doit) { 2766 nfsm_getfh(fhp, fhsize, 1); 2767 if (NFS_CMPFH(dnp, fhp, fhsize)) { 2768 VREF(vp); 2769 newvp = vp; 2770 np = dnp; 2771 } else { 2772 error = nfs_nget1(vp->v_mount, fhp, 2773 fhsize, &np, LK_NOWAIT); 2774 if (!error) 2775 newvp = NFSTOV(np); 2776 } 2777 if (!error) { 2778 const char *cp; 2779 2780 nfs_loadattrcache(&newvp, &fattr, 0, 0); 2781 dp->d_type = 2782 IFTODT(VTTOIF(np->n_vattr->va_type)); 2783 ndp->ni_vp = newvp; 2784 cp = cnp->cn_nameptr + cnp->cn_namelen; 2785 cnp->cn_hash = 2786 namei_hash(cnp->cn_nameptr, &cp); 2787 if (cnp->cn_namelen <= NCHNAMLEN) { 2788 cache_purge1(ndp->ni_dvp, cnp, 0); 2789 nfs_cache_enter(ndp->ni_dvp, ndp->ni_vp, 2790 cnp); 2791 } 2792 } 2793 } 2794 } else { 2795 /* Just skip over the file handle */ 2796 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); 2797 i = fxdr_unsigned(int, *tl); 2798 nfsm_adv(nfsm_rndup(i)); 2799 } 2800 if (newvp != NULLVP) { 2801 if (newvp == vp) 2802 vrele(newvp); 2803 else 2804 vput(newvp); 2805 newvp = NULLVP; 2806 } 2807 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); 2808 more_dirs = fxdr_unsigned(int, *tl); 2809 } 2810 /* 2811 * If at end of rpc data, get the eof boolean 2812 */ 2813 if (!more_dirs) { 2814 nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED); 2815 more_dirs = (fxdr_unsigned(int, *tl) == 0); 2816 } 2817 m_freem(mrep); 2818 } 2819 /* 2820 * Fill last record, iff any, out to a multiple of NFS_DIRFRAGSIZ 2821 * by increasing d_reclen for the last record. 2822 */ 2823 if (blksiz > 0) { 2824 left = NFS_DIRFRAGSIZ - blksiz; 2825 dp->d_reclen += left; 2826 NFS_STASHCOOKIE(dp, uiop->uio_offset); 2827 uiop->uio_iov->iov_base = (caddr_t)uiop->uio_iov->iov_base + 2828 left; 2829 uiop->uio_iov->iov_len -= left; 2830 uiop->uio_resid -= left; 2831 } 2832 2833 /* 2834 * We are now either at the end of the directory or have filled the 2835 * block. 2836 */ 2837 if (bigenough) 2838 dnp->n_direofoffset = uiop->uio_offset; 2839 nfsmout: 2840 if (newvp != NULLVP) { 2841 if(newvp == vp) 2842 vrele(newvp); 2843 else 2844 vput(newvp); 2845 } 2846 return (error); 2847 } 2848 static char hextoasc[] = "0123456789abcdef"; 2849 2850 /* 2851 * Silly rename. To make the NFS filesystem that is stateless look a little 2852 * more like the "ufs" a remove of an active vnode is translated to a rename 2853 * to a funny looking filename that is removed by nfs_inactive on the 2854 * nfsnode. There is the potential for another process on a different client 2855 * to create the same funny name between the nfs_lookitup() fails and the 2856 * nfs_rename() completes, but... 2857 */ 2858 int 2859 nfs_sillyrename(dvp, vp, cnp) 2860 struct vnode *dvp, *vp; 2861 struct componentname *cnp; 2862 { 2863 struct sillyrename *sp; 2864 struct nfsnode *np; 2865 int error; 2866 short pid; 2867 2868 cache_purge(dvp); 2869 np = VTONFS(vp); 2870 #ifndef DIAGNOSTIC 2871 if (vp->v_type == VDIR) 2872 panic("nfs: sillyrename dir"); 2873 #endif 2874 MALLOC(sp, struct sillyrename *, sizeof (struct sillyrename), 2875 M_NFSREQ, M_WAITOK); 2876 sp->s_cred = crdup(cnp->cn_cred); 2877 sp->s_dvp = dvp; 2878 VREF(dvp); 2879 2880 /* Fudge together a funny name */ 2881 pid = cnp->cn_proc->p_pid; 2882 memcpy(sp->s_name, ".nfsAxxxx4.4", 13); 2883 sp->s_namlen = 12; 2884 sp->s_name[8] = hextoasc[pid & 0xf]; 2885 sp->s_name[7] = hextoasc[(pid >> 4) & 0xf]; 2886 sp->s_name[6] = hextoasc[(pid >> 8) & 0xf]; 2887 sp->s_name[5] = hextoasc[(pid >> 12) & 0xf]; 2888 2889 /* Try lookitups until we get one that isn't there */ 2890 while (nfs_lookitup(dvp, sp->s_name, sp->s_namlen, sp->s_cred, 2891 cnp->cn_proc, (struct nfsnode **)0) == 0) { 2892 sp->s_name[4]++; 2893 if (sp->s_name[4] > 'z') { 2894 error = EINVAL; 2895 goto bad; 2896 } 2897 } 2898 error = nfs_renameit(dvp, cnp, sp); 2899 if (error) 2900 goto bad; 2901 error = nfs_lookitup(dvp, sp->s_name, sp->s_namlen, sp->s_cred, 2902 cnp->cn_proc, &np); 2903 np->n_sillyrename = sp; 2904 return (0); 2905 bad: 2906 vrele(sp->s_dvp); 2907 crfree(sp->s_cred); 2908 free((caddr_t)sp, M_NFSREQ); 2909 return (error); 2910 } 2911 2912 /* 2913 * Look up a file name and optionally either update the file handle or 2914 * allocate an nfsnode, depending on the value of npp. 2915 * npp == NULL --> just do the lookup 2916 * *npp == NULL --> allocate a new nfsnode and make sure attributes are 2917 * handled too 2918 * *npp != NULL --> update the file handle in the vnode 2919 */ 2920 int 2921 nfs_lookitup(dvp, name, len, cred, procp, npp) 2922 struct vnode *dvp; 2923 const char *name; 2924 int len; 2925 struct ucred *cred; 2926 struct proc *procp; 2927 struct nfsnode **npp; 2928 { 2929 u_int32_t *tl; 2930 caddr_t cp; 2931 int32_t t1, t2; 2932 struct vnode *newvp = (struct vnode *)0; 2933 struct nfsnode *np, *dnp = VTONFS(dvp); 2934 caddr_t bpos, dpos, cp2; 2935 int error = 0, fhlen, attrflag; 2936 struct mbuf *mreq, *mrep, *md, *mb; 2937 nfsfh_t *nfhp; 2938 const int v3 = NFS_ISV3(dvp); 2939 2940 nfsstats.rpccnt[NFSPROC_LOOKUP]++; 2941 nfsm_reqhead(dnp, NFSPROC_LOOKUP, 2942 NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(len)); 2943 nfsm_fhtom(dnp, v3); 2944 nfsm_strtom(name, len, NFS_MAXNAMLEN); 2945 nfsm_request(dnp, NFSPROC_LOOKUP, procp, cred); 2946 if (npp && !error) { 2947 nfsm_getfh(nfhp, fhlen, v3); 2948 if (*npp) { 2949 np = *npp; 2950 if (np->n_fhsize > NFS_SMALLFH && fhlen <= NFS_SMALLFH) { 2951 free((caddr_t)np->n_fhp, M_NFSBIGFH); 2952 np->n_fhp = &np->n_fh; 2953 } else if (np->n_fhsize <= NFS_SMALLFH && fhlen>NFS_SMALLFH) 2954 np->n_fhp =(nfsfh_t *)malloc(fhlen,M_NFSBIGFH,M_WAITOK); 2955 memcpy((caddr_t)np->n_fhp, (caddr_t)nfhp, fhlen); 2956 np->n_fhsize = fhlen; 2957 newvp = NFSTOV(np); 2958 } else if (NFS_CMPFH(dnp, nfhp, fhlen)) { 2959 VREF(dvp); 2960 newvp = dvp; 2961 np = dnp; 2962 } else { 2963 error = nfs_nget(dvp->v_mount, nfhp, fhlen, &np); 2964 if (error) { 2965 m_freem(mrep); 2966 return (error); 2967 } 2968 newvp = NFSTOV(np); 2969 } 2970 if (v3) { 2971 nfsm_postop_attr(newvp, attrflag, 0); 2972 if (!attrflag && *npp == NULL) { 2973 m_freem(mrep); 2974 vput(newvp); 2975 return (ENOENT); 2976 } 2977 } else 2978 nfsm_loadattr(newvp, (struct vattr *)0, 0); 2979 } 2980 nfsm_reqdone; 2981 if (npp && *npp == NULL) { 2982 if (error) { 2983 if (newvp) 2984 vput(newvp); 2985 } else 2986 *npp = np; 2987 } 2988 return (error); 2989 } 2990 2991 /* 2992 * Nfs Version 3 commit rpc 2993 */ 2994 int 2995 nfs_commit(vp, offset, cnt, procp) 2996 struct vnode *vp; 2997 off_t offset; 2998 uint32_t cnt; 2999 struct proc *procp; 3000 { 3001 caddr_t cp; 3002 u_int32_t *tl; 3003 int32_t t1, t2; 3004 struct nfsmount *nmp = VFSTONFS(vp->v_mount); 3005 caddr_t bpos, dpos, cp2; 3006 int error = 0, wccflag = NFSV3_WCCRATTR; 3007 struct mbuf *mreq, *mrep, *md, *mb; 3008 struct nfsnode *np; 3009 3010 KASSERT(NFS_ISV3(vp)); 3011 3012 #ifdef NFS_DEBUG_COMMIT 3013 printf("commit %lu - %lu\n", (unsigned long)offset, 3014 (unsigned long)(offset + cnt)); 3015 #endif 3016 3017 simple_lock(&nmp->nm_slock); 3018 if ((nmp->nm_iflag & NFSMNT_HASWRITEVERF) == 0) { 3019 simple_unlock(&nmp->nm_slock); 3020 return (0); 3021 } 3022 simple_unlock(&nmp->nm_slock); 3023 nfsstats.rpccnt[NFSPROC_COMMIT]++; 3024 np = VTONFS(vp); 3025 nfsm_reqhead(np, NFSPROC_COMMIT, NFSX_FH(1)); 3026 nfsm_fhtom(np, 1); 3027 nfsm_build(tl, u_int32_t *, 3 * NFSX_UNSIGNED); 3028 txdr_hyper(offset, tl); 3029 tl += 2; 3030 *tl = txdr_unsigned(cnt); 3031 nfsm_request(np, NFSPROC_COMMIT, procp, np->n_wcred); 3032 nfsm_wcc_data(vp, wccflag, 0); 3033 if (!error) { 3034 nfsm_dissect(tl, u_int32_t *, NFSX_V3WRITEVERF); 3035 simple_lock(&nmp->nm_slock); 3036 if ((nmp->nm_iflag & NFSMNT_STALEWRITEVERF) || 3037 memcmp(nmp->nm_writeverf, tl, NFSX_V3WRITEVERF)) { 3038 memcpy(nmp->nm_writeverf, tl, NFSX_V3WRITEVERF); 3039 error = NFSERR_STALEWRITEVERF; 3040 nmp->nm_iflag |= NFSMNT_STALEWRITEVERF; 3041 } 3042 simple_unlock(&nmp->nm_slock); 3043 } 3044 nfsm_reqdone; 3045 return (error); 3046 } 3047 3048 /* 3049 * Kludge City.. 3050 * - make nfs_bmap() essentially a no-op that does no translation 3051 * - do nfs_strategy() by doing I/O with nfs_readrpc/nfs_writerpc 3052 * (Maybe I could use the process's page mapping, but I was concerned that 3053 * Kernel Write might not be enabled and also figured copyout() would do 3054 * a lot more work than memcpy() and also it currently happens in the 3055 * context of the swapper process (2). 3056 */ 3057 int 3058 nfs_bmap(v) 3059 void *v; 3060 { 3061 struct vop_bmap_args /* { 3062 struct vnode *a_vp; 3063 daddr_t a_bn; 3064 struct vnode **a_vpp; 3065 daddr_t *a_bnp; 3066 int *a_runp; 3067 } */ *ap = v; 3068 struct vnode *vp = ap->a_vp; 3069 int bshift = vp->v_mount->mnt_fs_bshift - vp->v_mount->mnt_dev_bshift; 3070 3071 if (ap->a_vpp != NULL) 3072 *ap->a_vpp = vp; 3073 if (ap->a_bnp != NULL) 3074 *ap->a_bnp = ap->a_bn << bshift; 3075 if (ap->a_runp != NULL) 3076 *ap->a_runp = 1024 * 1024; /* XXX */ 3077 return (0); 3078 } 3079 3080 /* 3081 * Strategy routine. 3082 * For async requests when nfsiod(s) are running, queue the request by 3083 * calling nfs_asyncio(), otherwise just all nfs_doio() to do the 3084 * request. 3085 */ 3086 int 3087 nfs_strategy(v) 3088 void *v; 3089 { 3090 struct vop_strategy_args *ap = v; 3091 struct buf *bp = ap->a_bp; 3092 struct proc *p; 3093 int error = 0; 3094 3095 if ((bp->b_flags & (B_PHYS|B_ASYNC)) == (B_PHYS|B_ASYNC)) 3096 panic("nfs physio/async"); 3097 if (bp->b_flags & B_ASYNC) 3098 p = NULL; 3099 else 3100 p = curproc; /* XXX */ 3101 3102 /* 3103 * If the op is asynchronous and an i/o daemon is waiting 3104 * queue the request, wake it up and wait for completion 3105 * otherwise just do it ourselves. 3106 */ 3107 3108 if ((bp->b_flags & B_ASYNC) == 0 || 3109 nfs_asyncio(bp)) 3110 error = nfs_doio(bp, p); 3111 return (error); 3112 } 3113 3114 /* 3115 * fsync vnode op. Just call nfs_flush() with commit == 1. 3116 */ 3117 /* ARGSUSED */ 3118 int 3119 nfs_fsync(v) 3120 void *v; 3121 { 3122 struct vop_fsync_args /* { 3123 struct vnodeop_desc *a_desc; 3124 struct vnode * a_vp; 3125 struct ucred * a_cred; 3126 int a_flags; 3127 off_t offlo; 3128 off_t offhi; 3129 struct proc * a_p; 3130 } */ *ap = v; 3131 3132 struct vnode *vp = ap->a_vp; 3133 3134 if (vp->v_type != VREG) 3135 return 0; 3136 3137 return (nfs_flush(vp, ap->a_cred, 3138 (ap->a_flags & FSYNC_WAIT) != 0 ? MNT_WAIT : 0, ap->a_p, 1)); 3139 } 3140 3141 /* 3142 * Flush all the data associated with a vnode. 3143 */ 3144 int 3145 nfs_flush(vp, cred, waitfor, p, commit) 3146 struct vnode *vp; 3147 struct ucred *cred; 3148 int waitfor; 3149 struct proc *p; 3150 int commit; 3151 { 3152 struct nfsnode *np = VTONFS(vp); 3153 int error; 3154 int flushflags = PGO_ALLPAGES|PGO_CLEANIT|PGO_SYNCIO; 3155 UVMHIST_FUNC("nfs_flush"); UVMHIST_CALLED(ubchist); 3156 3157 simple_lock(&vp->v_interlock); 3158 error = VOP_PUTPAGES(vp, 0, 0, flushflags); 3159 if (np->n_flag & NWRITEERR) { 3160 error = np->n_error; 3161 np->n_flag &= ~NWRITEERR; 3162 } 3163 UVMHIST_LOG(ubchist, "returning %d", error,0,0,0); 3164 return (error); 3165 } 3166 3167 /* 3168 * Return POSIX pathconf information applicable to nfs. 3169 * 3170 * N.B. The NFS V2 protocol doesn't support this RPC. 3171 */ 3172 /* ARGSUSED */ 3173 int 3174 nfs_pathconf(v) 3175 void *v; 3176 { 3177 struct vop_pathconf_args /* { 3178 struct vnode *a_vp; 3179 int a_name; 3180 register_t *a_retval; 3181 } */ *ap = v; 3182 struct nfsv3_pathconf *pcp; 3183 struct vnode *vp = ap->a_vp; 3184 struct mbuf *mreq, *mrep, *md, *mb; 3185 int32_t t1, t2; 3186 u_int32_t *tl; 3187 caddr_t bpos, dpos, cp, cp2; 3188 int error = 0, attrflag; 3189 #ifndef NFS_V2_ONLY 3190 struct nfsmount *nmp; 3191 unsigned int l; 3192 u_int64_t maxsize; 3193 #endif 3194 const int v3 = NFS_ISV3(vp); 3195 struct nfsnode *np = VTONFS(vp); 3196 3197 switch (ap->a_name) { 3198 /* Names that can be resolved locally. */ 3199 case _PC_PIPE_BUF: 3200 *ap->a_retval = PIPE_BUF; 3201 break; 3202 case _PC_SYNC_IO: 3203 *ap->a_retval = 1; 3204 break; 3205 /* Names that cannot be resolved locally; do an RPC, if possible. */ 3206 case _PC_LINK_MAX: 3207 case _PC_NAME_MAX: 3208 case _PC_CHOWN_RESTRICTED: 3209 case _PC_NO_TRUNC: 3210 if (!v3) { 3211 error = EINVAL; 3212 break; 3213 } 3214 nfsstats.rpccnt[NFSPROC_PATHCONF]++; 3215 nfsm_reqhead(np, NFSPROC_PATHCONF, NFSX_FH(1)); 3216 nfsm_fhtom(np, 1); 3217 nfsm_request(np, NFSPROC_PATHCONF, 3218 curproc, curproc->p_ucred); /* XXX */ 3219 nfsm_postop_attr(vp, attrflag, 0); 3220 if (!error) { 3221 nfsm_dissect(pcp, struct nfsv3_pathconf *, 3222 NFSX_V3PATHCONF); 3223 switch (ap->a_name) { 3224 case _PC_LINK_MAX: 3225 *ap->a_retval = 3226 fxdr_unsigned(register_t, pcp->pc_linkmax); 3227 break; 3228 case _PC_NAME_MAX: 3229 *ap->a_retval = 3230 fxdr_unsigned(register_t, pcp->pc_namemax); 3231 break; 3232 case _PC_CHOWN_RESTRICTED: 3233 *ap->a_retval = 3234 (pcp->pc_chownrestricted == nfs_true); 3235 break; 3236 case _PC_NO_TRUNC: 3237 *ap->a_retval = 3238 (pcp->pc_notrunc == nfs_true); 3239 break; 3240 } 3241 } 3242 nfsm_reqdone; 3243 break; 3244 case _PC_FILESIZEBITS: 3245 #ifndef NFS_V2_ONLY 3246 if (v3) { 3247 nmp = VFSTONFS(vp->v_mount); 3248 if ((nmp->nm_iflag & NFSMNT_GOTFSINFO) == 0) 3249 if ((error = nfs_fsinfo(nmp, vp, 3250 curproc->p_ucred, curproc)) != 0) /* XXX */ 3251 break; 3252 for (l = 0, maxsize = nmp->nm_maxfilesize; 3253 (maxsize >> l) > 0; l++) 3254 ; 3255 *ap->a_retval = l + 1; 3256 } else 3257 #endif 3258 { 3259 *ap->a_retval = 32; /* NFS V2 limitation */ 3260 } 3261 break; 3262 default: 3263 error = EINVAL; 3264 break; 3265 } 3266 3267 return (error); 3268 } 3269 3270 /* 3271 * NFS advisory byte-level locks. 3272 */ 3273 int 3274 nfs_advlock(v) 3275 void *v; 3276 { 3277 struct vop_advlock_args /* { 3278 struct vnode *a_vp; 3279 caddr_t a_id; 3280 int a_op; 3281 struct flock *a_fl; 3282 int a_flags; 3283 } */ *ap = v; 3284 struct nfsnode *np = VTONFS(ap->a_vp); 3285 3286 return lf_advlock(ap, &np->n_lockf, np->n_size); 3287 } 3288 3289 /* 3290 * Print out the contents of an nfsnode. 3291 */ 3292 int 3293 nfs_print(v) 3294 void *v; 3295 { 3296 struct vop_print_args /* { 3297 struct vnode *a_vp; 3298 } */ *ap = v; 3299 struct vnode *vp = ap->a_vp; 3300 struct nfsnode *np = VTONFS(vp); 3301 3302 printf("tag VT_NFS, fileid %ld fsid 0x%lx", 3303 np->n_vattr->va_fileid, np->n_vattr->va_fsid); 3304 if (vp->v_type == VFIFO) 3305 fifo_printinfo(vp); 3306 printf("\n"); 3307 return (0); 3308 } 3309 3310 /* 3311 * NFS file truncation. 3312 */ 3313 int 3314 nfs_truncate(v) 3315 void *v; 3316 { 3317 #if 0 3318 struct vop_truncate_args /* { 3319 struct vnode *a_vp; 3320 off_t a_length; 3321 int a_flags; 3322 struct ucred *a_cred; 3323 struct proc *a_p; 3324 } */ *ap = v; 3325 #endif 3326 3327 /* Use nfs_setattr */ 3328 return (EOPNOTSUPP); 3329 } 3330 3331 /* 3332 * NFS update. 3333 */ 3334 int 3335 nfs_update(v) 3336 void *v; 3337 #if 0 3338 struct vop_update_args /* { 3339 struct vnode *a_vp; 3340 struct timespec *a_ta; 3341 struct timespec *a_tm; 3342 int a_waitfor; 3343 } */ *ap = v; 3344 #endif 3345 { 3346 3347 /* Use nfs_setattr */ 3348 return (EOPNOTSUPP); 3349 } 3350 3351 /* 3352 * Just call bwrite(). 3353 */ 3354 int 3355 nfs_bwrite(v) 3356 void *v; 3357 { 3358 struct vop_bwrite_args /* { 3359 struct vnode *a_bp; 3360 } */ *ap = v; 3361 3362 return (bwrite(ap->a_bp)); 3363 } 3364 3365 /* 3366 * nfs unlock wrapper. 3367 */ 3368 int 3369 nfs_unlock(void *v) 3370 { 3371 struct vop_unlock_args /* { 3372 struct vnode *a_vp; 3373 int a_flags; 3374 } */ *ap = v; 3375 struct vnode *vp = ap->a_vp; 3376 3377 /* 3378 * VOP_UNLOCK can be called by nfs_loadattrcache 3379 * with v_data == 0. 3380 */ 3381 if (VTONFS(vp)) { 3382 nfs_delayedtruncate(vp); 3383 } 3384 3385 return genfs_unlock(v); 3386 } 3387 3388 /* 3389 * nfs special file access vnode op. 3390 * Essentially just get vattr and then imitate iaccess() since the device is 3391 * local to the client. 3392 */ 3393 int 3394 nfsspec_access(v) 3395 void *v; 3396 { 3397 struct vop_access_args /* { 3398 struct vnode *a_vp; 3399 int a_mode; 3400 struct ucred *a_cred; 3401 struct proc *a_p; 3402 } */ *ap = v; 3403 struct vattr va; 3404 struct vnode *vp = ap->a_vp; 3405 int error; 3406 3407 error = VOP_GETATTR(vp, &va, ap->a_cred, ap->a_p); 3408 if (error) 3409 return (error); 3410 3411 /* 3412 * Disallow write attempts on filesystems mounted read-only; 3413 * unless the file is a socket, fifo, or a block or character 3414 * device resident on the filesystem. 3415 */ 3416 if ((ap->a_mode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY)) { 3417 switch (vp->v_type) { 3418 case VREG: 3419 case VDIR: 3420 case VLNK: 3421 return (EROFS); 3422 default: 3423 break; 3424 } 3425 } 3426 3427 return (vaccess(va.va_type, va.va_mode, 3428 va.va_uid, va.va_gid, ap->a_mode, ap->a_cred)); 3429 } 3430 3431 /* 3432 * Read wrapper for special devices. 3433 */ 3434 int 3435 nfsspec_read(v) 3436 void *v; 3437 { 3438 struct vop_read_args /* { 3439 struct vnode *a_vp; 3440 struct uio *a_uio; 3441 int a_ioflag; 3442 struct ucred *a_cred; 3443 } */ *ap = v; 3444 struct nfsnode *np = VTONFS(ap->a_vp); 3445 3446 /* 3447 * Set access flag. 3448 */ 3449 np->n_flag |= NACC; 3450 np->n_atim.tv_sec = time.tv_sec; 3451 np->n_atim.tv_nsec = time.tv_usec * 1000; 3452 return (VOCALL(spec_vnodeop_p, VOFFSET(vop_read), ap)); 3453 } 3454 3455 /* 3456 * Write wrapper for special devices. 3457 */ 3458 int 3459 nfsspec_write(v) 3460 void *v; 3461 { 3462 struct vop_write_args /* { 3463 struct vnode *a_vp; 3464 struct uio *a_uio; 3465 int a_ioflag; 3466 struct ucred *a_cred; 3467 } */ *ap = v; 3468 struct nfsnode *np = VTONFS(ap->a_vp); 3469 3470 /* 3471 * Set update flag. 3472 */ 3473 np->n_flag |= NUPD; 3474 np->n_mtim.tv_sec = time.tv_sec; 3475 np->n_mtim.tv_nsec = time.tv_usec * 1000; 3476 return (VOCALL(spec_vnodeop_p, VOFFSET(vop_write), ap)); 3477 } 3478 3479 /* 3480 * Close wrapper for special devices. 3481 * 3482 * Update the times on the nfsnode then do device close. 3483 */ 3484 int 3485 nfsspec_close(v) 3486 void *v; 3487 { 3488 struct vop_close_args /* { 3489 struct vnode *a_vp; 3490 int a_fflag; 3491 struct ucred *a_cred; 3492 struct proc *a_p; 3493 } */ *ap = v; 3494 struct vnode *vp = ap->a_vp; 3495 struct nfsnode *np = VTONFS(vp); 3496 struct vattr vattr; 3497 3498 if (np->n_flag & (NACC | NUPD)) { 3499 np->n_flag |= NCHG; 3500 if (vp->v_usecount == 1 && 3501 (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) { 3502 VATTR_NULL(&vattr); 3503 if (np->n_flag & NACC) 3504 vattr.va_atime = np->n_atim; 3505 if (np->n_flag & NUPD) 3506 vattr.va_mtime = np->n_mtim; 3507 (void)VOP_SETATTR(vp, &vattr, ap->a_cred, ap->a_p); 3508 } 3509 } 3510 return (VOCALL(spec_vnodeop_p, VOFFSET(vop_close), ap)); 3511 } 3512 3513 /* 3514 * Read wrapper for fifos. 3515 */ 3516 int 3517 nfsfifo_read(v) 3518 void *v; 3519 { 3520 struct vop_read_args /* { 3521 struct vnode *a_vp; 3522 struct uio *a_uio; 3523 int a_ioflag; 3524 struct ucred *a_cred; 3525 } */ *ap = v; 3526 struct nfsnode *np = VTONFS(ap->a_vp); 3527 3528 /* 3529 * Set access flag. 3530 */ 3531 np->n_flag |= NACC; 3532 np->n_atim.tv_sec = time.tv_sec; 3533 np->n_atim.tv_nsec = time.tv_usec * 1000; 3534 return (VOCALL(fifo_vnodeop_p, VOFFSET(vop_read), ap)); 3535 } 3536 3537 /* 3538 * Write wrapper for fifos. 3539 */ 3540 int 3541 nfsfifo_write(v) 3542 void *v; 3543 { 3544 struct vop_write_args /* { 3545 struct vnode *a_vp; 3546 struct uio *a_uio; 3547 int a_ioflag; 3548 struct ucred *a_cred; 3549 } */ *ap = v; 3550 struct nfsnode *np = VTONFS(ap->a_vp); 3551 3552 /* 3553 * Set update flag. 3554 */ 3555 np->n_flag |= NUPD; 3556 np->n_mtim.tv_sec = time.tv_sec; 3557 np->n_mtim.tv_nsec = time.tv_usec * 1000; 3558 return (VOCALL(fifo_vnodeop_p, VOFFSET(vop_write), ap)); 3559 } 3560 3561 /* 3562 * Close wrapper for fifos. 3563 * 3564 * Update the times on the nfsnode then do fifo close. 3565 */ 3566 int 3567 nfsfifo_close(v) 3568 void *v; 3569 { 3570 struct vop_close_args /* { 3571 struct vnode *a_vp; 3572 int a_fflag; 3573 struct ucred *a_cred; 3574 struct proc *a_p; 3575 } */ *ap = v; 3576 struct vnode *vp = ap->a_vp; 3577 struct nfsnode *np = VTONFS(vp); 3578 struct vattr vattr; 3579 3580 if (np->n_flag & (NACC | NUPD)) { 3581 if (np->n_flag & NACC) { 3582 np->n_atim.tv_sec = time.tv_sec; 3583 np->n_atim.tv_nsec = time.tv_usec * 1000; 3584 } 3585 if (np->n_flag & NUPD) { 3586 np->n_mtim.tv_sec = time.tv_sec; 3587 np->n_mtim.tv_nsec = time.tv_usec * 1000; 3588 } 3589 np->n_flag |= NCHG; 3590 if (vp->v_usecount == 1 && 3591 (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) { 3592 VATTR_NULL(&vattr); 3593 if (np->n_flag & NACC) 3594 vattr.va_atime = np->n_atim; 3595 if (np->n_flag & NUPD) 3596 vattr.va_mtime = np->n_mtim; 3597 (void)VOP_SETATTR(vp, &vattr, ap->a_cred, ap->a_p); 3598 } 3599 } 3600 return (VOCALL(fifo_vnodeop_p, VOFFSET(vop_close), ap)); 3601 } 3602
Indexes created Fri Sep 26 20:09:58 GMT 2025