1 /* $NetBSD: filecore_vfsops.c,v 1.75 2014/03/23 15:21:15 hannken Exp $ */ 2 3 /*- 4 * Copyright (c) 1994 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * filecore_vfsops.c 1.1 1998/6/26 32 */ 33 34 /*- 35 * Copyright (c) 1998 Andrew McMurry 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 3. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by the University of 48 * California, Berkeley and its contributors. 49 * 4. Neither the name of the University nor the names of its contributors 50 * may be used to endorse or promote products derived from this software 51 * without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 * 65 * filecore_vfsops.c 1.1 1998/6/26 66 */ 67 68 #include <sys/cdefs.h> 69 __KERNEL_RCSID(0, "$NetBSD: filecore_vfsops.c,v 1.75 2014/03/23 15:21:15 hannken Exp $"); 70 71 #if defined(_KERNEL_OPT) 72 #include "opt_compat_netbsd.h" 73 #endif 74 75 #include <sys/param.h> 76 #include <sys/systm.h> 77 #include <sys/namei.h> 78 #include <sys/proc.h> 79 #include <sys/vnode.h> 80 #include <miscfs/genfs/genfs.h> 81 #include <miscfs/specfs/specdev.h> 82 #include <sys/mount.h> 83 #include <sys/buf.h> 84 #include <sys/file.h> 85 #include <sys/device.h> 86 #include <sys/errno.h> 87 #include <sys/pool.h> 88 #include <sys/conf.h> 89 #include <sys/sysctl.h> 90 #include <sys/kauth.h> 91 #include <sys/module.h> 92 93 #include <fs/filecorefs/filecore.h> 94 #include <fs/filecorefs/filecore_extern.h> 95 #include <fs/filecorefs/filecore_node.h> 96 #include <fs/filecorefs/filecore_mount.h> 97 98 MODULE(MODULE_CLASS_VFS, filecore, NULL); 99 100 static struct sysctllog *filecore_sysctl_log; 101 102 extern const struct vnodeopv_desc filecore_vnodeop_opv_desc; 103 104 const struct vnodeopv_desc * const filecore_vnodeopv_descs[] = { 105 &filecore_vnodeop_opv_desc, 106 NULL, 107 }; 108 109 struct vfsops filecore_vfsops = { 110 .vfs_name = MOUNT_FILECORE, 111 .vfs_min_mount_data = sizeof (struct filecore_args), 112 .vfs_mount = filecore_mount, 113 .vfs_start = filecore_start, 114 .vfs_unmount = filecore_unmount, 115 .vfs_root = filecore_root, 116 .vfs_quotactl = (void *)eopnotsupp, 117 .vfs_statvfs = filecore_statvfs, 118 .vfs_sync = filecore_sync, 119 .vfs_vget = filecore_vget, 120 .vfs_fhtovp = filecore_fhtovp, 121 .vfs_vptofh = filecore_vptofh, 122 .vfs_init = filecore_init, 123 .vfs_reinit = filecore_reinit, 124 .vfs_done = filecore_done, 125 .vfs_snapshot = (void *)eopnotsupp, 126 .vfs_extattrctl = vfs_stdextattrctl, 127 .vfs_suspendctl = (void *)eopnotsupp, 128 .vfs_renamelock_enter = genfs_renamelock_enter, 129 .vfs_renamelock_exit = genfs_renamelock_exit, 130 .vfs_fsync = (void *)eopnotsupp, 131 .vfs_opv_descs = filecore_vnodeopv_descs 132 }; 133 134 static const struct genfs_ops filecore_genfsops = { 135 .gop_size = genfs_size, 136 }; 137 138 static int 139 filecore_modcmd(modcmd_t cmd, void *arg) 140 { 141 int error; 142 143 switch (cmd) { 144 case MODULE_CMD_INIT: 145 error = vfs_attach(&filecore_vfsops); 146 if (error != 0) 147 break; 148 sysctl_createv(&filecore_sysctl_log, 0, NULL, NULL, 149 CTLFLAG_PERMANENT, 150 CTLTYPE_NODE, "filecore", 151 SYSCTL_DESCR("Acorn FILECORE file system"), 152 NULL, 0, NULL, 0, 153 CTL_VFS, 19, CTL_EOL); 154 /* 155 * XXX the "19" above could be dynamic, thereby eliminating 156 * one more instance of the "number to vfs" mapping problem, 157 * but "19" is the order as taken from sys/mount.h 158 */ 159 break; 160 case MODULE_CMD_FINI: 161 error = vfs_detach(&filecore_vfsops); 162 if (error != 0) 163 break; 164 sysctl_teardown(&filecore_sysctl_log); 165 break; 166 default: 167 error = ENOTTY; 168 break; 169 } 170 171 return (error); 172 } 173 174 /* 175 * Called by vfs_mountroot when iso is going to be mounted as root. 176 * 177 * Name is updated by mount(8) after booting. 178 */ 179 180 static int filecore_mountfs(struct vnode *devvp, struct mount *mp, 181 struct lwp *l, struct filecore_args *argp); 182 183 #if 0 184 int 185 filecore_mountroot(void) 186 { 187 struct mount *mp; 188 extern struct vnode *rootvp; 189 struct proc *p = curproc; /* XXX */ 190 int error; 191 struct filecore_args args; 192 193 if (device_class(root_device) != DV_DISK) 194 return (ENODEV); 195 196 /* 197 * Get vnodes for swapdev and rootdev. 198 */ 199 if (bdevvp(rootdev, &rootvp)) 200 panic("filecore_mountroot: can't setup rootvp"); 201 202 if ((error = vfs_rootmountalloc(MOUNT_FILECORE, "root_device", &mp)) != 0) 203 return (error); 204 205 args.flags = FILECOREMNT_ROOT; 206 if ((error = filecore_mountfs(rootvp, mp, p, &args)) != 0) { 207 vfs_unbusy(mp, false, NULL); 208 vfs_destroy(mp); 209 return (error); 210 } 211 mountlist_append(mp); 212 (void)filecore_statvfs(mp, &mp->mnt_stat, p); 213 vfs_unbusy(mp, false, NULL); 214 return (0); 215 } 216 #endif 217 218 /* 219 * VFS Operations. 220 * 221 * mount system call 222 */ 223 int 224 filecore_mount(struct mount *mp, const char *path, void *data, size_t *data_len) 225 { 226 struct lwp *l = curlwp; 227 struct vnode *devvp; 228 struct filecore_args *args = data; 229 int error; 230 struct filecore_mnt *fcmp = NULL; 231 232 if (*data_len < sizeof *args) 233 return EINVAL; 234 235 if (mp->mnt_flag & MNT_GETARGS) { 236 fcmp = VFSTOFILECORE(mp); 237 if (fcmp == NULL) 238 return EIO; 239 args->flags = fcmp->fc_mntflags; 240 args->uid = fcmp->fc_uid; 241 args->gid = fcmp->fc_gid; 242 args->fspec = NULL; 243 *data_len = sizeof *args; 244 return 0; 245 } 246 247 if ((mp->mnt_flag & MNT_RDONLY) == 0) 248 return (EROFS); 249 250 if ((mp->mnt_flag & MNT_UPDATE) && args->fspec == NULL) 251 return EINVAL; 252 253 /* 254 * Not an update, or updating the name: look up the name 255 * and verify that it refers to a sensible block device. 256 */ 257 error = namei_simple_user(args->fspec, 258 NSM_FOLLOW_NOEMULROOT, &devvp); 259 if (error != 0) 260 return (error); 261 262 if (devvp->v_type != VBLK) { 263 vrele(devvp); 264 return ENOTBLK; 265 } 266 if (bdevsw_lookup(devvp->v_rdev) == NULL) { 267 vrele(devvp); 268 return ENXIO; 269 } 270 /* 271 * If mount by non-root, then verify that user has necessary 272 * permissions on the device. 273 */ 274 vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY); 275 error = kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_MOUNT, 276 KAUTH_REQ_SYSTEM_MOUNT_DEVICE, mp, devvp, KAUTH_ARG(VREAD)); 277 VOP_UNLOCK(devvp); 278 if (error) { 279 vrele(devvp); 280 return (error); 281 } 282 if ((mp->mnt_flag & MNT_UPDATE) == 0) 283 error = filecore_mountfs(devvp, mp, l, args); 284 else { 285 fcmp = VFSTOFILECORE(mp); 286 if (devvp != fcmp->fc_devvp) 287 error = EINVAL; /* needs translation */ 288 else 289 vrele(devvp); 290 } 291 if (error) { 292 vrele(devvp); 293 return error; 294 } 295 fcmp = VFSTOFILECORE(mp); 296 return set_statvfs_info(path, UIO_USERSPACE, args->fspec, UIO_USERSPACE, 297 mp->mnt_op->vfs_name, mp, l); 298 } 299 300 /* 301 * Common code for mount and mountroot 302 */ 303 static int 304 filecore_mountfs(struct vnode *devvp, struct mount *mp, struct lwp *l, struct filecore_args *argp) 305 { 306 struct filecore_mnt *fcmp = (struct filecore_mnt *)0; 307 struct buf *bp = NULL; 308 dev_t dev = devvp->v_rdev; 309 int error = EINVAL; 310 int ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 311 struct filecore_disc_record *fcdr; 312 unsigned map; 313 unsigned log2secsize; 314 315 if (!ronly) 316 return EROFS; 317 318 if ((error = vinvalbuf(devvp, V_SAVE, l->l_cred, l, 0, 0)) != 0) 319 return (error); 320 321 vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY); 322 error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED); 323 VOP_UNLOCK(devvp); 324 if (error) 325 return error; 326 327 /* Read the filecore boot block to check FS validity and to find the map */ 328 error = bread(devvp, FILECORE_BOOTBLOCK_BLKN, 329 FILECORE_BOOTBLOCK_SIZE, NOCRED, 0, &bp); 330 #ifdef FILECORE_DEBUG_BR 331 printf("bread(%p, %x, %d, CRED, %p)=%d\n", devvp, 332 FILECORE_BOOTBLOCK_BLKN, FILECORE_BOOTBLOCK_SIZE, 333 bp, error); 334 #endif 335 if (error != 0) 336 goto out; 337 338 KASSERT(bp != NULL); 339 if (filecore_bbchecksum(bp->b_data) != 0) { 340 error = EINVAL; 341 goto out; 342 } 343 fcdr = (struct filecore_disc_record *)((char *)(bp->b_data) + 344 FILECORE_BB_DISCREC); 345 map = ((((8 << fcdr->log2secsize) - fcdr->zone_spare) 346 * (fcdr->nzones / 2) - 8 * FILECORE_DISCREC_SIZE) 347 << fcdr->log2bpmb) >> fcdr->log2secsize; 348 log2secsize = fcdr->log2secsize; 349 #ifdef FILECORE_DEBUG_BR 350 printf("brelse(%p) vf1\n", bp); 351 #endif 352 brelse(bp, BC_AGE); 353 bp = NULL; 354 355 /* Read the bootblock in the map */ 356 error = bread(devvp, map, 1 << log2secsize, NOCRED, 0, &bp); 357 #ifdef FILECORE_DEBUG_BR 358 printf("bread(%p, %x, %d, CRED, %p)=%d\n", devvp, 359 map, 1 << log2secsize, bp, error); 360 #endif 361 if (error != 0) 362 goto out; 363 fcdr = (struct filecore_disc_record *)((char *)(bp->b_data) + 4); 364 fcmp = kmem_zalloc(sizeof(*fcmp), KM_SLEEP); 365 if (fcdr->log2bpmb > fcdr->log2secsize) 366 fcmp->log2bsize = fcdr->log2bpmb; 367 else fcmp->log2bsize = fcdr->log2secsize; 368 fcmp->blksize = 1 << fcmp->log2bsize; 369 memcpy(&fcmp->drec, fcdr, sizeof(*fcdr)); 370 fcmp->map = map; 371 fcmp->idspz = ((8 << fcdr->log2secsize) - fcdr->zone_spare) 372 / (fcdr->idlen + 1); 373 fcmp->mask = (1 << fcdr->idlen) - 1; 374 if (fcdr->big_flag & 1) { 375 fcmp->nblks = ((((u_int64_t)fcdr->disc_size_2) << 32) 376 + fcdr->disc_size) / fcmp->blksize; 377 } else { 378 fcmp->nblks=fcdr->disc_size / fcmp->blksize; 379 } 380 381 #ifdef FILECORE_DEBUG_BR 382 printf("brelse(%p) vf2\n", bp); 383 #endif 384 brelse(bp, BC_AGE); 385 bp = NULL; 386 387 mp->mnt_data = fcmp; 388 mp->mnt_stat.f_fsidx.__fsid_val[0] = (long)dev; 389 mp->mnt_stat.f_fsidx.__fsid_val[1] = makefstype(MOUNT_FILECORE); 390 mp->mnt_stat.f_fsid = mp->mnt_stat.f_fsidx.__fsid_val[0]; 391 mp->mnt_stat.f_namemax = 10; 392 mp->mnt_flag |= MNT_LOCAL; 393 mp->mnt_dev_bshift = fcdr->log2secsize; 394 mp->mnt_fs_bshift = fcmp->log2bsize; 395 396 fcmp->fc_mountp = mp; 397 fcmp->fc_dev = dev; 398 fcmp->fc_devvp = devvp; 399 fcmp->fc_mntflags = argp->flags; 400 if (argp->flags & FILECOREMNT_USEUID) { 401 fcmp->fc_uid = kauth_cred_getuid(l->l_cred); 402 fcmp->fc_gid = kauth_cred_getgid(l->l_cred); 403 } else { 404 fcmp->fc_uid = argp->uid; 405 fcmp->fc_gid = argp->gid; 406 } 407 408 return 0; 409 out: 410 if (bp) { 411 #ifdef FILECORE_DEBUG_BR 412 printf("brelse(%p) vf3\n", bp); 413 #endif 414 brelse(bp, 0); 415 } 416 vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY); 417 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, NOCRED); 418 VOP_UNLOCK(devvp); 419 return error; 420 } 421 422 /* 423 * Make a filesystem operational. 424 * Nothing to do at the moment. 425 */ 426 /* ARGSUSED */ 427 int 428 filecore_start(struct mount *mp, int flags) 429 { 430 return 0; 431 } 432 433 /* 434 * unmount system call 435 */ 436 int 437 filecore_unmount(struct mount *mp, int mntflags) 438 { 439 struct filecore_mnt *fcmp; 440 int error, flags = 0; 441 442 if (mntflags & MNT_FORCE) 443 flags |= FORCECLOSE; 444 if ((error = vflush(mp, NULLVP, flags)) != 0) 445 return (error); 446 447 fcmp = VFSTOFILECORE(mp); 448 449 if (fcmp->fc_devvp->v_type != VBAD) 450 spec_node_setmountedfs(fcmp->fc_devvp, NULL); 451 vn_lock(fcmp->fc_devvp, LK_EXCLUSIVE | LK_RETRY); 452 error = VOP_CLOSE(fcmp->fc_devvp, FREAD, NOCRED); 453 vput(fcmp->fc_devvp); 454 kmem_free(fcmp, sizeof(*fcmp)); 455 mp->mnt_data = NULL; 456 mp->mnt_flag &= ~MNT_LOCAL; 457 return (error); 458 } 459 460 /* 461 * Return root of a filesystem 462 */ 463 int 464 filecore_root(struct mount *mp, struct vnode **vpp) 465 { 466 struct vnode *nvp; 467 int error; 468 469 if ((error = VFS_VGET(mp, FILECORE_ROOTINO, &nvp)) != 0) 470 return (error); 471 *vpp = nvp; 472 return (0); 473 } 474 475 /* 476 * Get file system statistics. 477 */ 478 int 479 filecore_statvfs(struct mount *mp, struct statvfs *sbp) 480 { 481 struct filecore_mnt *fcmp = VFSTOFILECORE(mp); 482 483 sbp->f_bsize = fcmp->blksize; 484 sbp->f_frsize = sbp->f_bsize; /* XXX */ 485 sbp->f_iosize = sbp->f_bsize; /* XXX */ 486 sbp->f_blocks = fcmp->nblks; 487 sbp->f_bfree = 0; /* total free blocks */ 488 sbp->f_bavail = 0; /* blocks free for non superuser */ 489 sbp->f_bresvd = 0; /* reserved blocks */ 490 sbp->f_files = 0; /* total files */ 491 sbp->f_ffree = 0; /* free file nodes for non superuser */ 492 sbp->f_favail = 0; /* free file nodes */ 493 sbp->f_fresvd = 0; /* reserved file nodes */ 494 copy_statvfs_info(sbp, mp); 495 return 0; 496 } 497 498 /* ARGSUSED */ 499 int 500 filecore_sync(struct mount *mp, int waitfor, kauth_cred_t cred) 501 { 502 return (0); 503 } 504 505 /* 506 * File handle to vnode 507 * 508 * Have to be really careful about stale file handles: 509 * - check that the inode number is in range 510 * - call iget() to get the locked inode 511 * - check for an unallocated inode (i_mode == 0) 512 * - check that the generation number matches 513 */ 514 515 struct ifid { 516 ushort ifid_len; 517 ushort ifid_pad; 518 u_int32_t ifid_ino; 519 }; 520 521 /* ARGSUSED */ 522 int 523 filecore_fhtovp(struct mount *mp, struct fid *fhp, struct vnode **vpp) 524 { 525 struct ifid ifh; 526 struct vnode *nvp; 527 struct filecore_node *ip; 528 int error; 529 530 if (fhp->fid_len != sizeof(struct ifid)) 531 return EINVAL; 532 533 memcpy(&ifh, fhp, sizeof(ifh)); 534 if ((error = VFS_VGET(mp, ifh.ifid_ino, &nvp)) != 0) { 535 *vpp = NULLVP; 536 return (error); 537 } 538 ip = VTOI(nvp); 539 if (filecore_staleinode(ip)) { 540 vput(nvp); 541 *vpp = NULLVP; 542 return (ESTALE); 543 } 544 *vpp = nvp; 545 return (0); 546 } 547 548 /* This looks complicated. Look at other vgets as well as the iso9660 one. 549 * 550 * The filecore inode number is made up of 1 byte directory entry index and 551 * 3 bytes of the internal disc address of the directory. On a read-only 552 * filesystem this is unique. For a read-write version we may not be able to 553 * do vget, see msdosfs. 554 */ 555 556 int 557 filecore_vget(struct mount *mp, ino_t ino, struct vnode **vpp) 558 { 559 struct filecore_mnt *fcmp; 560 struct filecore_node *ip; 561 struct buf *bp; 562 struct vnode *vp; 563 dev_t dev; 564 int error; 565 566 fcmp = VFSTOFILECORE(mp); 567 dev = fcmp->fc_dev; 568 if ((*vpp = filecore_ihashget(dev, ino)) != NULLVP) 569 return (0); 570 571 /* Allocate a new vnode/filecore_node. */ 572 error = getnewvnode(VT_FILECORE, mp, filecore_vnodeop_p, NULL, &vp); 573 if (error) { 574 *vpp = NULLVP; 575 return (error); 576 } 577 ip = pool_get(&filecore_node_pool, PR_WAITOK); 578 memset(ip, 0, sizeof(struct filecore_node)); 579 vp->v_data = ip; 580 ip->i_vnode = vp; 581 ip->i_dev = dev; 582 ip->i_number = ino; 583 ip->i_block = -1; 584 ip->i_parent = -2; 585 genfs_node_init(vp, &filecore_genfsops); 586 587 /* 588 * Put it onto its hash chain and lock it so that other requests for 589 * this inode will block if they arrive while we are sleeping waiting 590 * for old data structures to be purged or for the contents of the 591 * disk portion of this inode to be read. 592 */ 593 filecore_ihashins(ip); 594 595 if (ino == FILECORE_ROOTINO) { 596 /* Here we need to construct a root directory inode */ 597 memcpy(ip->i_dirent.name, "root", 4); 598 ip->i_dirent.load = 0; 599 ip->i_dirent.exec = 0; 600 ip->i_dirent.len = FILECORE_DIR_SIZE; 601 ip->i_dirent.addr = fcmp->drec.root; 602 ip->i_dirent.attr = FILECORE_ATTR_DIR | FILECORE_ATTR_READ; 603 604 } else { 605 /* Read in Data from Directory Entry */ 606 if ((error = filecore_bread(fcmp, ino & FILECORE_INO_MASK, 607 FILECORE_DIR_SIZE, NOCRED, &bp)) != 0) { 608 vput(vp); 609 *vpp = NULL; 610 return (error); 611 } 612 613 memcpy(&ip->i_dirent, 614 fcdirentry(bp->b_data, ino >> FILECORE_INO_INDEX), 615 sizeof(struct filecore_direntry)); 616 #ifdef FILECORE_DEBUG_BR 617 printf("brelse(%p) vf5\n", bp); 618 #endif 619 brelse(bp, 0); 620 } 621 622 ip->i_mnt = fcmp; 623 ip->i_devvp = fcmp->fc_devvp; 624 ip->i_diroff = 0; 625 vref(ip->i_devvp); 626 627 /* 628 * Setup type 629 */ 630 vp->v_type = VREG; 631 if (ip->i_dirent.attr & FILECORE_ATTR_DIR) 632 vp->v_type = VDIR; 633 634 /* 635 * Initialize the associated vnode 636 */ 637 switch (vp->v_type) { 638 case VFIFO: 639 case VCHR: 640 case VBLK: 641 /* 642 * Devices not supported. 643 */ 644 vput(vp); 645 return (EOPNOTSUPP); 646 case VLNK: 647 case VNON: 648 case VSOCK: 649 case VDIR: 650 case VBAD: 651 case VREG: 652 break; 653 } 654 655 if (ino == FILECORE_ROOTINO) 656 vp->v_vflag |= VV_ROOT; 657 658 /* 659 * XXX need generation number? 660 */ 661 662 uvm_vnp_setsize(vp, ip->i_size); 663 *vpp = vp; 664 return (0); 665 } 666 667 /* 668 * Vnode pointer to File handle 669 */ 670 /* ARGSUSED */ 671 int 672 filecore_vptofh(struct vnode *vp, struct fid *fhp, size_t *fh_size) 673 { 674 struct filecore_node *ip = VTOI(vp); 675 struct ifid ifh; 676 677 if (*fh_size < sizeof(struct ifid)) { 678 *fh_size = sizeof(struct ifid); 679 return E2BIG; 680 } 681 memset(&ifh, 0, sizeof(ifh)); 682 ifh.ifid_len = sizeof(struct ifid); 683 ifh.ifid_ino = ip->i_number; 684 memcpy(fhp, &ifh, sizeof(ifh)); 685 return 0; 686 } 687