filecore_vfsops.c revision 1.5.2.2
1 /* $NetBSD: filecore_vfsops.c,v 1.5.2.2 2003/07/03 01:21:41 wrstuden Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 Andrew McMurry 5 * Copyright (c) 1994 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * filecore_vfsops.c 1.1 1998/6/26 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: filecore_vfsops.c,v 1.5.2.2 2003/07/03 01:21:41 wrstuden Exp $"); 41 42 #if defined(_KERNEL_OPT) 43 #include "opt_compat_netbsd.h" 44 #endif 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/namei.h> 49 #include <sys/proc.h> 50 #include <sys/vnode.h> 51 #include <miscfs/specfs/specdev.h> 52 #include <sys/mount.h> 53 #include <sys/buf.h> 54 #include <sys/file.h> 55 #include <sys/device.h> 56 #include <sys/errno.h> 57 #include <sys/malloc.h> 58 #include <sys/pool.h> 59 #include <sys/conf.h> 60 61 #include <fs/filecorefs/filecore.h> 62 #include <fs/filecorefs/filecore_extern.h> 63 #include <fs/filecorefs/filecore_node.h> 64 #include <fs/filecorefs/filecore_mount.h> 65 66 MALLOC_DEFINE(M_FILECOREMNT, "filecore mount", "Filecore FS mount structures"); 67 68 extern const struct vnodeopv_desc filecore_vnodeop_opv_desc; 69 70 const struct vnodeopv_desc * const filecore_vnodeopv_descs[] = { 71 &filecore_vnodeop_opv_desc, 72 NULL, 73 }; 74 75 struct vfsops filecore_vfsops = { 76 MOUNT_FILECORE, 77 filecore_mount, 78 filecore_start, 79 filecore_unmount, 80 filecore_root, 81 filecore_quotactl, 82 filecore_statfs, 83 filecore_sync, 84 filecore_vget, 85 filecore_fhtovp, 86 filecore_vptofh, 87 filecore_init, 88 filecore_reinit, 89 filecore_done, 90 filecore_sysctl, 91 NULL, /* filecore_mountroot */ 92 filecore_checkexp, 93 filecore_vnodeopv_descs, 94 }; 95 96 struct genfs_ops filecore_genfsops = { 97 genfs_size, 98 }; 99 100 /* 101 * Called by vfs_mountroot when iso is going to be mounted as root. 102 * 103 * Name is updated by mount(8) after booting. 104 */ 105 106 static int filecore_mountfs __P((struct vnode *devvp, struct mount *mp, 107 struct lwp *l, struct filecore_args *argp)); 108 109 #if 0 110 int 111 filecore_mountroot() 112 { 113 struct mount *mp; 114 extern struct vnode *rootvp; 115 struct proc *p = curproc; /* XXX */ 116 int error; 117 struct filecore_args args; 118 119 if (root_device->dv_class != DV_DISK) 120 return (ENODEV); 121 122 /* 123 * Get vnodes for swapdev and rootdev. 124 */ 125 if (bdevvp(rootdev, &rootvp)) 126 panic("filecore_mountroot: can't setup rootvp"); 127 128 if ((error = vfs_rootmountalloc(MOUNT_FILECORE, "root_device", &mp)) != 0) 129 return (error); 130 131 args.flags = FILECOREMNT_ROOT; 132 if ((error = filecore_mountfs(rootvp, mp, p, &args)) != 0) { 133 mp->mnt_op->vfs_refcount--; 134 vfs_unbusy(mp); 135 free(mp, M_MOUNT); 136 return (error); 137 } 138 simple_lock(&mountlist_slock); 139 CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list); 140 simple_unlock(&mountlist_slock); 141 (void)filecore_statfs(mp, &mp->mnt_stat, p); 142 vfs_unbusy(mp); 143 return (0); 144 } 145 #endif 146 147 /* 148 * VFS Operations. 149 * 150 * mount system call 151 */ 152 int 153 filecore_mount(mp, path, data, ndp, l) 154 struct mount *mp; 155 const char *path; 156 void *data; 157 struct nameidata *ndp; 158 struct lwp *l; 159 { 160 struct vnode *devvp; 161 struct filecore_args args; 162 struct proc *p; 163 int error; 164 struct filecore_mnt *fcmp = NULL; 165 166 p = l->l_proc; 167 if (mp->mnt_flag & MNT_GETARGS) { 168 fcmp = VFSTOFILECORE(mp); 169 if (fcmp == NULL) 170 return EIO; 171 args.flags = fcmp->fc_mntflags; 172 args.uid = fcmp->fc_uid; 173 args.gid = fcmp->fc_gid; 174 args.fspec = NULL; 175 vfs_showexport(mp, &args.export, &fcmp->fc_export); 176 return copyout(&args, data, sizeof(args)); 177 } 178 error = copyin(data, (caddr_t)&args, sizeof (struct filecore_args)); 179 if (error) 180 return (error); 181 182 if ((mp->mnt_flag & MNT_RDONLY) == 0) 183 return (EROFS); 184 185 /* 186 * If updating, check whether changing from read-only to 187 * read/write; if there is no device name, that's all we do. 188 */ 189 if (mp->mnt_flag & MNT_UPDATE) { 190 fcmp = VFSTOFILECORE(mp); 191 if (args.fspec == 0) 192 return (vfs_export(mp, &fcmp->fc_export, &args.export)); 193 } 194 /* 195 * Not an update, or updating the name: look up the name 196 * and verify that it refers to a sensible block device. 197 */ 198 NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args.fspec, l); 199 if ((error = namei(ndp)) != 0) 200 return (error); 201 devvp = ndp->ni_vp; 202 203 if (devvp->v_type != VBLK) { 204 vrele(devvp); 205 return ENOTBLK; 206 } 207 if (bdevsw_lookup(devvp->v_rdev) == NULL) { 208 vrele(devvp); 209 return ENXIO; 210 } 211 /* 212 * If mount by non-root, then verify that user has necessary 213 * permissions on the device. 214 */ 215 if (p->p_ucred->cr_uid != 0) { 216 vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY); 217 error = VOP_ACCESS(devvp, VREAD, p->p_ucred, l); 218 VOP_UNLOCK(devvp, 0); 219 if (error) { 220 vrele(devvp); 221 return (error); 222 } 223 } 224 if ((mp->mnt_flag & MNT_UPDATE) == 0) 225 error = filecore_mountfs(devvp, mp, l, &args); 226 else { 227 if (devvp != fcmp->fc_devvp) 228 error = EINVAL; /* needs translation */ 229 else 230 vrele(devvp); 231 } 232 if (error) { 233 vrele(devvp); 234 return error; 235 } 236 fcmp = VFSTOFILECORE(mp); 237 return set_statfs_info(path, UIO_USERSPACE, args.fspec, UIO_USERSPACE, 238 mp, l); 239 } 240 241 /* 242 * Common code for mount and mountroot 243 */ 244 static int 245 filecore_mountfs(devvp, mp, l, argp) 246 struct vnode *devvp; 247 struct mount *mp; 248 struct lwp *l; 249 struct filecore_args *argp; 250 { 251 struct filecore_mnt *fcmp = (struct filecore_mnt *)0; 252 struct buf *bp = NULL; 253 dev_t dev = devvp->v_rdev; 254 int error = EINVAL; 255 int ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 256 extern struct vnode *rootvp; 257 struct filecore_disc_record *fcdr; 258 unsigned map; 259 unsigned log2secsize; 260 261 if (!ronly) 262 return EROFS; 263 264 /* 265 * Disallow multiple mounts of the same device. 266 * Disallow mounting of a device that is currently in use 267 * (except for root, which might share swap device for miniroot). 268 * Flush out any old buffers remaining from a previous use. 269 */ 270 if ((error = vfs_mountedon(devvp)) != 0) 271 return error; 272 if (vcount(devvp) > 1 && devvp != rootvp) 273 return EBUSY; 274 if ((error = vinvalbuf(devvp, V_SAVE, l->l_proc->p_ucred, l, 0, 0)) 275 != 0) 276 return (error); 277 278 error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, l); 279 if (error) 280 return error; 281 282 /* Read the filecore boot block to check FS validity and to find the map */ 283 error = bread(devvp, FILECORE_BOOTBLOCK_BLKN, 284 FILECORE_BOOTBLOCK_SIZE, NOCRED, &bp); 285 #ifdef FILECORE_DEBUG_BR 286 printf("bread(%p, %x, %d, CRED, %p)=%d\n", devvp, 287 FILECORE_BOOTBLOCK_BLKN, FILECORE_BOOTBLOCK_SIZE, 288 bp, error); 289 #endif 290 if (error != 0) 291 goto out; 292 if (filecore_bbchecksum(bp->b_data) != 0) { 293 error = EINVAL; 294 goto out; 295 } 296 fcdr = (struct filecore_disc_record *)(bp->b_data+FILECORE_BB_DISCREC); 297 map = ((((8 << fcdr->log2secsize) - fcdr->zone_spare) 298 * (fcdr->nzones / 2) - 8 * FILECORE_DISCREC_SIZE) 299 << fcdr->log2bpmb) >> fcdr->log2secsize; 300 log2secsize = fcdr->log2secsize; 301 bp->b_flags |= B_AGE; 302 #ifdef FILECORE_DEBUG_BR 303 printf("brelse(%p) vf1\n", bp); 304 #endif 305 brelse(bp); 306 bp = NULL; 307 308 /* Read the bootblock in the map */ 309 error = bread(devvp, map, 1 << log2secsize, NOCRED, &bp); 310 #ifdef FILECORE_DEBUG_BR 311 printf("bread(%p, %x, %d, CRED, %p)=%d\n", devvp, 312 map, 1 << log2secsize, bp, error); 313 #endif 314 if (error != 0) 315 goto out; 316 fcdr = (struct filecore_disc_record *)(bp->b_data + 4); 317 fcmp = malloc(sizeof *fcmp, M_FILECOREMNT, M_WAITOK); 318 memset((caddr_t)fcmp, 0, sizeof *fcmp); 319 if (fcdr->log2bpmb > fcdr->log2secsize) 320 fcmp->log2bsize = fcdr->log2bpmb; 321 else fcmp->log2bsize = fcdr->log2secsize; 322 fcmp->blksize = 1 << fcmp->log2bsize; 323 memcpy((caddr_t)&fcmp->drec, (caddr_t)fcdr, sizeof(*fcdr)); 324 fcmp->map = map; 325 fcmp->idspz = ((8 << fcdr->log2secsize) - fcdr->zone_spare) 326 / (fcdr->idlen + 1); 327 fcmp->mask = (1 << fcdr->idlen) - 1; 328 if (fcdr->big_flag & 1) { 329 fcmp->nblks = ((((u_int64_t)fcdr->disc_size_2) << 32) 330 + fcdr->disc_size) / fcmp->blksize; 331 } else { 332 fcmp->nblks=fcdr->disc_size / fcmp->blksize; 333 } 334 335 bp->b_flags |= B_AGE; 336 #ifdef FILECORE_DEBUG_BR 337 printf("brelse(%p) vf2\n", bp); 338 #endif 339 brelse(bp); 340 bp = NULL; 341 342 mp->mnt_data = fcmp; 343 mp->mnt_stat.f_fsid.val[0] = (long)dev; 344 mp->mnt_stat.f_fsid.val[1] = makefstype(MOUNT_FILECORE); 345 mp->mnt_maxsymlinklen = 0; 346 mp->mnt_flag |= MNT_LOCAL; 347 mp->mnt_dev_bshift = fcdr->log2secsize; 348 mp->mnt_fs_bshift = fcmp->log2bsize; 349 350 fcmp->fc_mountp = mp; 351 fcmp->fc_dev = dev; 352 fcmp->fc_devvp = devvp; 353 fcmp->fc_mntflags = argp->flags; 354 if (argp->flags & FILECOREMNT_USEUID) { 355 fcmp->fc_uid = l->l_proc->p_cred->p_ruid; 356 fcmp->fc_gid = l->l_proc->p_cred->p_rgid; 357 } else { 358 fcmp->fc_uid = argp->uid; 359 fcmp->fc_gid = argp->gid; 360 } 361 362 return 0; 363 out: 364 if (bp) { 365 #ifdef FILECORE_DEBUG_BR 366 printf("brelse(%p) vf3\n", bp); 367 #endif 368 brelse(bp); 369 } 370 vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY); 371 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, NOCRED, l); 372 VOP_UNLOCK(devvp, 0); 373 if (fcmp) { 374 free((caddr_t)fcmp, M_FILECOREMNT); 375 mp->mnt_data = NULL; 376 } 377 return error; 378 } 379 380 /* 381 * Make a filesystem operational. 382 * Nothing to do at the moment. 383 */ 384 /* ARGSUSED */ 385 int 386 filecore_start(mp, flags, l) 387 struct mount *mp; 388 int flags; 389 struct lwp *l; 390 { 391 return 0; 392 } 393 394 /* 395 * unmount system call 396 */ 397 int 398 filecore_unmount(mp, mntflags, l) 399 struct mount *mp; 400 int mntflags; 401 struct lwp *l; 402 { 403 struct filecore_mnt *fcmp; 404 int error, flags = 0; 405 406 if (mntflags & MNT_FORCE) 407 flags |= FORCECLOSE; 408 #if 0 409 mntflushbuf(mp, 0); 410 if (mntinvalbuf(mp)) 411 return EBUSY; 412 #endif 413 if ((error = vflush(mp, NULLVP, flags)) != 0) 414 return (error); 415 416 fcmp = VFSTOFILECORE(mp); 417 418 if (fcmp->fc_devvp->v_type != VBAD) 419 fcmp->fc_devvp->v_specmountpoint = NULL; 420 vn_lock(fcmp->fc_devvp, LK_EXCLUSIVE | LK_RETRY); 421 error = VOP_CLOSE(fcmp->fc_devvp, FREAD, NOCRED, l); 422 vput(fcmp->fc_devvp); 423 free((caddr_t)fcmp, M_FILECOREMNT); 424 mp->mnt_data = NULL; 425 mp->mnt_flag &= ~MNT_LOCAL; 426 return (error); 427 } 428 429 /* 430 * Return root of a filesystem 431 */ 432 int 433 filecore_root(mp, vpp, l) 434 struct mount *mp; 435 struct vnode **vpp; 436 struct lwp *l; 437 { 438 struct vnode *nvp; 439 int error; 440 441 if ((error = VFS_VGET(mp, FILECORE_ROOTINO, &nvp, l)) != 0) 442 return (error); 443 *vpp = nvp; 444 return (0); 445 } 446 447 /* 448 * Do operations associated with quotas, not supported 449 */ 450 /* ARGSUSED */ 451 int 452 filecore_quotactl(mp, cmd, uid, arg, l) 453 struct mount *mp; 454 int cmd; 455 uid_t uid; 456 caddr_t arg; 457 struct lwp *l; 458 { 459 460 return (EOPNOTSUPP); 461 } 462 463 /* 464 * Get file system statistics. 465 */ 466 int 467 filecore_statfs(mp, sbp, l) 468 struct mount *mp; 469 struct statfs *sbp; 470 struct lwp *l; 471 { 472 struct filecore_mnt *fcmp = VFSTOFILECORE(mp); 473 474 #ifdef COMPAT_09 475 sbp->f_type = 255; 476 #else 477 sbp->f_type = 0; 478 #endif 479 sbp->f_bsize = fcmp->blksize; 480 sbp->f_iosize = sbp->f_bsize; /* XXX */ 481 sbp->f_blocks = fcmp->nblks; 482 sbp->f_bfree = 0; /* total free blocks */ 483 sbp->f_bavail = 0; /* blocks free for non superuser */ 484 sbp->f_files = 0; /* total files */ 485 sbp->f_ffree = 0; /* free file nodes */ 486 copy_statfs_info(sbp, mp); 487 return 0; 488 } 489 490 /* ARGSUSED */ 491 int 492 filecore_sync(mp, waitfor, cred, l) 493 struct mount *mp; 494 int waitfor; 495 struct ucred *cred; 496 struct lwp *l; 497 { 498 return (0); 499 } 500 501 /* 502 * File handle to vnode 503 * 504 * Have to be really careful about stale file handles: 505 * - check that the inode number is in range 506 * - call iget() to get the locked inode 507 * - check for an unallocated inode (i_mode == 0) 508 * - check that the generation number matches 509 */ 510 511 struct ifid { 512 ushort ifid_len; 513 ushort ifid_pad; 514 u_int32_t ifid_ino; 515 }; 516 517 /* ARGSUSED */ 518 int 519 filecore_fhtovp(mp, fhp, vpp, l) 520 struct mount *mp; 521 struct fid *fhp; 522 struct vnode **vpp; 523 struct lwp *l; 524 { 525 struct ifid *ifhp = (struct ifid *)fhp; 526 struct vnode *nvp; 527 struct filecore_node *ip; 528 int error; 529 530 if ((error = VFS_VGET(mp, ifhp->ifid_ino, &nvp, l)) != 0) { 531 *vpp = NULLVP; 532 return (error); 533 } 534 ip = VTOI(nvp); 535 if (filecore_staleinode(ip)) { 536 vput(nvp); 537 *vpp = NULLVP; 538 return (ESTALE); 539 } 540 *vpp = nvp; 541 return (0); 542 } 543 544 /* ARGSUSED */ 545 int 546 filecore_checkexp(mp, nam, exflagsp, credanonp) 547 struct mount *mp; 548 struct mbuf *nam; 549 int *exflagsp; 550 struct ucred **credanonp; 551 { 552 struct filecore_mnt *fcmp = VFSTOFILECORE(mp); 553 struct netcred *np; 554 555 /* 556 * Get the export permission structure for this <mp, client> tuple. 557 */ 558 np = vfs_export_lookup(mp, &fcmp->fc_export, nam); 559 if (np == NULL) 560 return (EACCES); 561 562 *exflagsp = np->netc_exflags; 563 *credanonp = &np->netc_anon; 564 return (0); 565 } 566 567 /* This looks complicated. Look at other vgets as well as the iso9660 one. 568 * 569 * The filecore inode number is made up of 1 byte directory entry index and 570 * 3 bytes of the internal disc address of the directory. On a read-only 571 * filesystem this is unique. For a read-write version we may not be able to 572 * do vget, see msdosfs. 573 */ 574 575 int 576 filecore_vget(mp, ino, vpp, l) 577 struct mount *mp; 578 ino_t ino; 579 struct vnode **vpp; 580 struct lwp *l; 581 { 582 struct filecore_mnt *fcmp; 583 struct filecore_node *ip; 584 struct buf *bp; 585 struct vnode *vp; 586 dev_t dev; 587 int error; 588 589 fcmp = VFSTOFILECORE(mp); 590 dev = fcmp->fc_dev; 591 if ((*vpp = filecore_ihashget(dev, ino, l)) != NULLVP) 592 return (0); 593 594 /* Allocate a new vnode/filecore_node. */ 595 if ((error = getnewvnode(VT_FILECORE, mp, filecore_vnodeop_p, &vp)) 596 != 0) { 597 *vpp = NULLVP; 598 return (error); 599 } 600 ip = pool_get(&filecore_node_pool, PR_WAITOK); 601 memset(ip, 0, sizeof(struct filecore_node)); 602 vp->v_data = ip; 603 ip->i_vnode = vp; 604 ip->i_dev = dev; 605 ip->i_number = ino; 606 ip->i_block = -1; 607 ip->i_parent = -2; 608 609 /* 610 * Put it onto its hash chain and lock it so that other requests for 611 * this inode will block if they arrive while we are sleeping waiting 612 * for old data structures to be purged or for the contents of the 613 * disk portion of this inode to be read. 614 */ 615 filecore_ihashins(ip); 616 617 if (ino == FILECORE_ROOTINO) { 618 /* Here we need to construct a root directory inode */ 619 memcpy((caddr_t)ip->i_dirent.name, (caddr_t)"root", 4); 620 ip->i_dirent.load = 0; 621 ip->i_dirent.exec = 0; 622 ip->i_dirent.len = FILECORE_DIR_SIZE; 623 ip->i_dirent.addr = fcmp->drec.root; 624 ip->i_dirent.attr = FILECORE_ATTR_DIR | FILECORE_ATTR_READ; 625 626 } else { 627 /* Read in Data from Directory Entry */ 628 if ((error = filecore_bread(fcmp, ino & FILECORE_INO_MASK, 629 FILECORE_DIR_SIZE, NOCRED, &bp)) != 0) { 630 vput(vp); 631 #ifdef FILECORE_DEBUG_BR 632 printf("brelse(%p) vf4\n", bp); 633 #endif 634 brelse(bp); 635 *vpp = NULL; 636 return (error); 637 } 638 639 memcpy((caddr_t)&ip->i_dirent, 640 (caddr_t)fcdirentry(bp->b_data, ino >> FILECORE_INO_INDEX), 641 sizeof(struct filecore_direntry)); 642 #ifdef FILECORE_DEBUG_BR 643 printf("brelse(%p) vf5\n", bp); 644 #endif 645 brelse(bp); 646 } 647 648 ip->i_mnt = fcmp; 649 ip->i_devvp = fcmp->fc_devvp; 650 ip->i_diroff = 0; 651 VREF(ip->i_devvp); 652 653 /* 654 * Setup type 655 */ 656 vp->v_type = VREG; 657 if (ip->i_dirent.attr & FILECORE_ATTR_DIR) 658 vp->v_type = VDIR; 659 660 /* 661 * Initialize the associated vnode 662 */ 663 switch (vp->v_type) { 664 case VFIFO: 665 case VCHR: 666 case VBLK: 667 /* 668 * Devices not supported. 669 */ 670 vput(vp); 671 return (EOPNOTSUPP); 672 case VLNK: 673 case VNON: 674 case VSOCK: 675 case VDIR: 676 case VBAD: 677 case VREG: 678 break; 679 } 680 681 if (ino == FILECORE_ROOTINO) 682 vp->v_flag |= VROOT; 683 684 /* 685 * XXX need generation number? 686 */ 687 688 genfs_node_init(vp, &filecore_genfsops); 689 vp->v_size = ip->i_size; 690 *vpp = vp; 691 return (0); 692 } 693 694 /* 695 * Vnode pointer to File handle 696 */ 697 /* ARGSUSED */ 698 int 699 filecore_vptofh(vp, fhp) 700 struct vnode *vp; 701 struct fid *fhp; 702 { 703 struct filecore_node *ip = VTOI(vp); 704 struct ifid *ifhp; 705 706 ifhp = (struct ifid *)fhp; 707 ifhp->ifid_len = sizeof(struct ifid); 708 ifhp->ifid_ino = ip->i_number; 709 return 0; 710 } 711 712 int 713 filecore_sysctl(name, namelen, oldp, oldlenp, newp, newlen, l) 714 int *name; 715 u_int namelen; 716 void *oldp; 717 size_t *oldlenp; 718 void *newp; 719 size_t newlen; 720 struct lwp *l; 721 { 722 return (EOPNOTSUPP); 723 } 724
Indexes created Wed Oct 01 12:09:54 GMT 2025