| 1 | /* $NetBSD: ntfs_vfsops.c,v 1.23 1999/11/15 19:38:14 jdolecek Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 1998, 1999 Semen Ustimenko |
| 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 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 17 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 20 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 21 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 22 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 23 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 24 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 25 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 26 | * SUCH DAMAGE. |
| 27 | * |
| 28 | * $FreeBSD: src/sys/ntfs/ntfs_vfsops.c,v 1.20.2.5 2001/12/25 01:44:45 dillon Exp $ |
| 29 | * $DragonFly: src/sys/vfs/ntfs/ntfs_vfsops.c,v 1.11 2003/10/19 18:11:37 hmp Exp $ |
| 30 | */ |
| 31 | |
| 32 | |
| 33 | #include <sys/param.h> |
| 34 | #include <sys/systm.h> |
| 35 | #include <sys/conf.h> |
| 36 | #include <sys/proc.h> |
| 37 | #include <sys/namei.h> |
| 38 | #include <sys/kernel.h> |
| 39 | #include <sys/vnode.h> |
| 40 | #include <sys/mount.h> |
| 41 | #include <sys/buf.h> |
| 42 | #include <sys/fcntl.h> |
| 43 | #include <sys/malloc.h> |
| 44 | #include <sys/systm.h> |
| 45 | #if defined(__NetBSD__) |
| 46 | #include <sys/device.h> |
| 47 | #endif |
| 48 | |
| 49 | #include <vm/vm.h> |
| 50 | #include <vm/vm_param.h> |
| 51 | #if defined(__NetBSD__) |
| 52 | #include <vm/vm_prot.h> |
| 53 | #endif |
| 54 | #include <vm/vm_page.h> |
| 55 | #include <vm/vm_object.h> |
| 56 | #include <vm/vm_extern.h> |
| 57 | #include <vm/vm_zone.h> |
| 58 | |
| 59 | #if defined(__NetBSD__) |
| 60 | #include <miscfs/specfs/specdev.h> |
| 61 | #endif |
| 62 | |
| 63 | /*#define NTFS_DEBUG 1*/ |
| 64 | #include "ntfs.h" |
| 65 | #include "ntfs_inode.h" |
| 66 | #include "ntfs_subr.h" |
| 67 | #include "ntfs_vfsops.h" |
| 68 | #include "ntfs_ihash.h" |
| 69 | #include "ntfsmount.h" |
| 70 | |
| 71 | #if defined(__FreeBSD__) |
| 72 | MALLOC_DEFINE(M_NTFSMNT, "NTFS mount", "NTFS mount structure"); |
| 73 | MALLOC_DEFINE(M_NTFSNTNODE,"NTFS ntnode", "NTFS ntnode information"); |
| 74 | MALLOC_DEFINE(M_NTFSFNODE,"NTFS fnode", "NTFS fnode information"); |
| 75 | MALLOC_DEFINE(M_NTFSDIR,"NTFS dir", "NTFS dir buffer"); |
| 76 | #endif |
| 77 | |
| 78 | static int ntfs_root (struct mount *, struct vnode **); |
| 79 | static int ntfs_statfs (struct mount *, struct statfs *, |
| 80 | struct thread *); |
| 81 | static int ntfs_unmount (struct mount *, int, struct thread *); |
| 82 | static int ntfs_vget (struct mount *mp, ino_t ino, |
| 83 | struct vnode **vpp); |
| 84 | static int ntfs_mountfs (struct vnode *, struct mount *, |
| 85 | struct ntfs_args *, struct thread *); |
| 86 | static int ntfs_vptofh (struct vnode *, struct fid *); |
| 87 | static int ntfs_fhtovp (struct mount *, struct fid *, |
| 88 | struct vnode **); |
| 89 | |
| 90 | #if !defined (__FreeBSD__) |
| 91 | static int ntfs_quotactl (struct mount *, int, uid_t, caddr_t, |
| 92 | struct thread *); |
| 93 | static int ntfs_start (struct mount *, int, struct thread *); |
| 94 | static int ntfs_sync (struct mount *, int, struct ucred *, |
| 95 | struct thread *); |
| 96 | #endif |
| 97 | |
| 98 | #if defined(__FreeBSD__) |
| 99 | struct sockaddr; |
| 100 | static int ntfs_mount (struct mount *, char *, caddr_t, |
| 101 | struct nameidata *, struct thread *); |
| 102 | static int ntfs_init (struct vfsconf *); |
| 103 | static int ntfs_checkexp (struct mount *, struct sockaddr *, |
| 104 | int *, struct ucred **); |
| 105 | #elif defined(__NetBSD__) |
| 106 | static int ntfs_mount (struct mount *, const char *, void *, |
| 107 | struct nameidata *, struct thread *); |
| 108 | static void ntfs_init (void); |
| 109 | static int ntfs_mountroot (void); |
| 110 | static int ntfs_sysctl (int *, u_int, void *, size_t *, void *, |
| 111 | size_t, struct thread *); |
| 112 | static int ntfs_checkexp (struct mount *, struct mbuf *, |
| 113 | int *, struct ucred **); |
| 114 | #endif |
| 115 | |
| 116 | /* |
| 117 | * Verify a remote client has export rights and return these rights via. |
| 118 | * exflagsp and credanonp. |
| 119 | */ |
| 120 | static int |
| 121 | ntfs_checkexp(mp, nam, exflagsp, credanonp) |
| 122 | #if defined(__FreeBSD__) |
| 123 | struct mount *mp; |
| 124 | struct sockaddr *nam; |
| 125 | int *exflagsp; |
| 126 | struct ucred **credanonp; |
| 127 | #else /* defined(__NetBSD__) */ |
| 128 | struct mount *mp; |
| 129 | struct mbuf *nam; |
| 130 | int *exflagsp; |
| 131 | struct ucred **credanonp; |
| 132 | #endif |
| 133 | { |
| 134 | struct netcred *np; |
| 135 | struct ntfsmount *ntm = VFSTONTFS(mp); |
| 136 | |
| 137 | /* |
| 138 | * Get the export permission structure for this <mp, client> tuple. |
| 139 | */ |
| 140 | np = vfs_export_lookup(mp, &ntm->ntm_export, nam); |
| 141 | if (np == NULL) |
| 142 | return (EACCES); |
| 143 | |
| 144 | *exflagsp = np->netc_exflags; |
| 145 | *credanonp = &np->netc_anon; |
| 146 | return (0); |
| 147 | } |
| 148 | |
| 149 | #if defined(__NetBSD__) |
| 150 | /*ARGSUSED*/ |
| 151 | static int |
| 152 | ntfs_sysctl(name, namelen, oldp, oldlenp, newp, newlen, td) |
| 153 | int *name; |
| 154 | u_int namelen; |
| 155 | void *oldp; |
| 156 | size_t *oldlenp; |
| 157 | void *newp; |
| 158 | size_t newlen; |
| 159 | struct thread *td; |
| 160 | { |
| 161 | return (EINVAL); |
| 162 | } |
| 163 | |
| 164 | static int |
| 165 | ntfs_mountroot() |
| 166 | { |
| 167 | struct mount *mp; |
| 168 | extern struct vnode *rootvp; |
| 169 | struct thread *td = curthread; /* XXX */ |
| 170 | int error; |
| 171 | struct ntfs_args args; |
| 172 | |
| 173 | if (root_device->dv_class != DV_DISK) |
| 174 | return (ENODEV); |
| 175 | |
| 176 | /* |
| 177 | * Get vnodes for rootdev. |
| 178 | */ |
| 179 | if (bdevvp(rootdev, &rootvp)) |
| 180 | panic("ntfs_mountroot: can't setup rootvp"); |
| 181 | |
| 182 | if ((error = vfs_rootmountalloc(MOUNT_NTFS, "root_device", &mp))) { |
| 183 | vrele(rootvp); |
| 184 | return (error); |
| 185 | } |
| 186 | |
| 187 | args.flag = 0; |
| 188 | args.uid = 0; |
| 189 | args.gid = 0; |
| 190 | args.mode = 0777; |
| 191 | |
| 192 | if ((error = ntfs_mountfs(rootvp, mp, &args, td)) != 0) { |
| 193 | mp->mnt_op->vfs_refcount--; |
| 194 | vfs_unbusy(mp); |
| 195 | free(mp, M_MOUNT); |
| 196 | vrele(rootvp); |
| 197 | return (error); |
| 198 | } |
| 199 | |
| 200 | lwkt_gettoken(&mountlist_token); |
| 201 | CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list); |
| 202 | lwkt_reltoken(&mountlist_token); |
| 203 | (void)ntfs_statfs(mp, &mp->mnt_stat, td); |
| 204 | vfs_unbusy(mp); |
| 205 | return (0); |
| 206 | } |
| 207 | |
| 208 | static void |
| 209 | ntfs_init () |
| 210 | { |
| 211 | ntfs_nthashinit(); |
| 212 | ntfs_toupper_init(); |
| 213 | } |
| 214 | |
| 215 | #elif defined(__FreeBSD__) |
| 216 | |
| 217 | static int |
| 218 | ntfs_init ( |
| 219 | struct vfsconf *vcp ) |
| 220 | { |
| 221 | ntfs_nthashinit(); |
| 222 | ntfs_toupper_init(); |
| 223 | return 0; |
| 224 | } |
| 225 | |
| 226 | #endif /* NetBSD */ |
| 227 | |
| 228 | static int |
| 229 | ntfs_mount ( |
| 230 | struct mount *mp, |
| 231 | #if defined(__FreeBSD__) |
| 232 | char *path, |
| 233 | caddr_t data, |
| 234 | #else |
| 235 | const char *path, |
| 236 | void *data, |
| 237 | #endif |
| 238 | struct nameidata *ndp, |
| 239 | struct thread *td |
| 240 | ) { |
| 241 | size_t size; |
| 242 | int err = 0; |
| 243 | struct vnode *devvp; |
| 244 | struct ntfs_args args; |
| 245 | |
| 246 | #ifdef __FreeBSD__ |
| 247 | /* |
| 248 | * Use NULL path to flag a root mount |
| 249 | */ |
| 250 | if( path == NULL) { |
| 251 | /* |
| 252 | *** |
| 253 | * Mounting root file system |
| 254 | *** |
| 255 | */ |
| 256 | |
| 257 | /* Get vnode for root device*/ |
| 258 | if( bdevvp( rootdev, &rootvp)) |
| 259 | panic("ffs_mountroot: can't setup bdevvp for root"); |
| 260 | |
| 261 | /* |
| 262 | * FS specific handling |
| 263 | */ |
| 264 | mp->mnt_flag |= MNT_RDONLY; /* XXX globally applicable?*/ |
| 265 | |
| 266 | /* |
| 267 | * Attempt mount |
| 268 | */ |
| 269 | if( ( err = ntfs_mountfs(rootvp, mp, &args, td)) != 0) { |
| 270 | /* fs specific cleanup (if any)*/ |
| 271 | goto error_1; |
| 272 | } |
| 273 | |
| 274 | goto dostatfs; /* success*/ |
| 275 | |
| 276 | } |
| 277 | #endif /* FreeBSD */ |
| 278 | |
| 279 | /* |
| 280 | *** |
| 281 | * Mounting non-root file system or updating a file system |
| 282 | *** |
| 283 | */ |
| 284 | |
| 285 | /* copy in user arguments*/ |
| 286 | err = copyin(data, (caddr_t)&args, sizeof (struct ntfs_args)); |
| 287 | if (err) |
| 288 | goto error_1; /* can't get arguments*/ |
| 289 | |
| 290 | /* |
| 291 | * If updating, check whether changing from read-only to |
| 292 | * read/write; if there is no device name, that's all we do. |
| 293 | */ |
| 294 | if (mp->mnt_flag & MNT_UPDATE) { |
| 295 | /* if not updating name...*/ |
| 296 | if (args.fspec == 0) { |
| 297 | /* |
| 298 | * Process export requests. Jumping to "success" |
| 299 | * will return the vfs_export() error code. |
| 300 | */ |
| 301 | struct ntfsmount *ntm = VFSTONTFS(mp); |
| 302 | err = vfs_export(mp, &ntm->ntm_export, &args.export); |
| 303 | goto success; |
| 304 | } |
| 305 | |
| 306 | printf("ntfs_mount(): MNT_UPDATE not supported\n"); |
| 307 | err = EINVAL; |
| 308 | goto error_1; |
| 309 | } |
| 310 | |
| 311 | /* |
| 312 | * Not an update, or updating the name: look up the name |
| 313 | * and verify that it refers to a sensible block device. |
| 314 | */ |
| 315 | NDINIT(ndp, NAMEI_LOOKUP, CNP_FOLLOW, UIO_USERSPACE, args.fspec, td); |
| 316 | err = namei(ndp); |
| 317 | if (err) { |
| 318 | /* can't get devvp!*/ |
| 319 | goto error_1; |
| 320 | } |
| 321 | NDFREE(ndp, NDF_ONLY_PNBUF); |
| 322 | devvp = ndp->ni_vp; |
| 323 | |
| 324 | #if defined(__FreeBSD__) |
| 325 | if (!vn_isdisk(devvp, &err)) |
| 326 | goto error_2; |
| 327 | #else |
| 328 | if (devvp->v_type != VBLK) { |
| 329 | err = ENOTBLK; |
| 330 | goto error_2; |
| 331 | } |
| 332 | if (major(devvp->v_rdev) >= nblkdev) { |
| 333 | err = ENXIO; |
| 334 | goto error_2; |
| 335 | } |
| 336 | #endif |
| 337 | if (mp->mnt_flag & MNT_UPDATE) { |
| 338 | #if 0 |
| 339 | /* |
| 340 | ******************** |
| 341 | * UPDATE |
| 342 | ******************** |
| 343 | */ |
| 344 | |
| 345 | if (devvp != ntmp->um_devvp) |
| 346 | err = EINVAL; /* needs translation */ |
| 347 | else |
| 348 | vrele(devvp); |
| 349 | /* |
| 350 | * Update device name only on success |
| 351 | */ |
| 352 | if( !err) { |
| 353 | /* Save "mounted from" info for mount point (NULL pad)*/ |
| 354 | copyinstr( args.fspec, |
| 355 | mp->mnt_stat.f_mntfromname, |
| 356 | MNAMELEN - 1, |
| 357 | &size); |
| 358 | bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); |
| 359 | } |
| 360 | #endif |
| 361 | } else { |
| 362 | /* |
| 363 | ******************** |
| 364 | * NEW MOUNT |
| 365 | ******************** |
| 366 | */ |
| 367 | |
| 368 | /* |
| 369 | * Since this is a new mount, we want the names for |
| 370 | * the device and the mount point copied in. If an |
| 371 | * error occurs, the mountpoint is discarded by the |
| 372 | * upper level code. |
| 373 | */ |
| 374 | /* Save "last mounted on" info for mount point (NULL pad)*/ |
| 375 | copyinstr( path, /* mount point*/ |
| 376 | mp->mnt_stat.f_mntonname, /* save area*/ |
| 377 | MNAMELEN - 1, /* max size*/ |
| 378 | &size); /* real size*/ |
| 379 | bzero( mp->mnt_stat.f_mntonname + size, MNAMELEN - size); |
| 380 | |
| 381 | /* Save "mounted from" info for mount point (NULL pad)*/ |
| 382 | copyinstr( args.fspec, /* device name*/ |
| 383 | mp->mnt_stat.f_mntfromname, /* save area*/ |
| 384 | MNAMELEN - 1, /* max size*/ |
| 385 | &size); /* real size*/ |
| 386 | bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); |
| 387 | |
| 388 | err = ntfs_mountfs(devvp, mp, &args, td); |
| 389 | } |
| 390 | if (err) { |
| 391 | goto error_2; |
| 392 | } |
| 393 | |
| 394 | #ifdef __FreeBSD__ |
| 395 | dostatfs: |
| 396 | #endif |
| 397 | /* |
| 398 | * Initialize FS stat information in mount struct; uses both |
| 399 | * mp->mnt_stat.f_mntonname and mp->mnt_stat.f_mntfromname |
| 400 | * |
| 401 | * This code is common to root and non-root mounts |
| 402 | */ |
| 403 | (void)VFS_STATFS(mp, &mp->mnt_stat, td); |
| 404 | |
| 405 | goto success; |
| 406 | |
| 407 | |
| 408 | error_2: /* error with devvp held*/ |
| 409 | |
| 410 | /* release devvp before failing*/ |
| 411 | vrele(devvp); |
| 412 | |
| 413 | error_1: /* no state to back out*/ |
| 414 | |
| 415 | success: |
| 416 | return(err); |
| 417 | } |
| 418 | |
| 419 | /* |
| 420 | * Common code for mount and mountroot |
| 421 | */ |
| 422 | int |
| 423 | ntfs_mountfs(devvp, mp, argsp, td) |
| 424 | struct vnode *devvp; |
| 425 | struct mount *mp; |
| 426 | struct ntfs_args *argsp; |
| 427 | struct thread *td; |
| 428 | { |
| 429 | struct buf *bp; |
| 430 | struct ntfsmount *ntmp; |
| 431 | dev_t dev = devvp->v_rdev; |
| 432 | int error, ronly, ncount, i; |
| 433 | struct vnode *vp; |
| 434 | struct ucred *cred; |
| 435 | |
| 436 | KKASSERT(td->td_proc); |
| 437 | cred = td->td_proc->p_ucred; |
| 438 | |
| 439 | /* |
| 440 | * Disallow multiple mounts of the same device. |
| 441 | * Disallow mounting of a device that is currently in use |
| 442 | * (except for root, which might share swap device for miniroot). |
| 443 | * Flush out any old buffers remaining from a previous use. |
| 444 | */ |
| 445 | error = vfs_mountedon(devvp); |
| 446 | if (error) |
| 447 | return (error); |
| 448 | ncount = vcount(devvp); |
| 449 | #if defined(__FreeBSD__) |
| 450 | if (devvp->v_object) |
| 451 | ncount -= 1; |
| 452 | #endif |
| 453 | if (ncount > 1 && devvp != rootvp) |
| 454 | return (EBUSY); |
| 455 | #if defined(__FreeBSD__) |
| 456 | VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); |
| 457 | error = vinvalbuf(devvp, V_SAVE, td, 0, 0); |
| 458 | VOP__UNLOCK(devvp, 0, td); |
| 459 | #else |
| 460 | error = vinvalbuf(devvp, V_SAVE, td, 0, 0); |
| 461 | #endif |
| 462 | if (error) |
| 463 | return (error); |
| 464 | |
| 465 | ronly = (mp->mnt_flag & MNT_RDONLY) != 0; |
| 466 | VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); |
| 467 | error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, td); |
| 468 | VOP__UNLOCK(devvp, 0, td); |
| 469 | if (error) |
| 470 | return (error); |
| 471 | |
| 472 | bp = NULL; |
| 473 | |
| 474 | error = bread(devvp, BBLOCK, BBSIZE, &bp); |
| 475 | if (error) |
| 476 | goto out; |
| 477 | ntmp = malloc( sizeof *ntmp, M_NTFSMNT, M_WAITOK ); |
| 478 | bzero( ntmp, sizeof *ntmp ); |
| 479 | bcopy( bp->b_data, &ntmp->ntm_bootfile, sizeof(struct bootfile) ); |
| 480 | brelse( bp ); |
| 481 | bp = NULL; |
| 482 | |
| 483 | if (strncmp(ntmp->ntm_bootfile.bf_sysid, NTFS_BBID, NTFS_BBIDLEN)) { |
| 484 | error = EINVAL; |
| 485 | dprintf(("ntfs_mountfs: invalid boot block\n")); |
| 486 | goto out; |
| 487 | } |
| 488 | |
| 489 | { |
| 490 | int8_t cpr = ntmp->ntm_mftrecsz; |
| 491 | if( cpr > 0 ) |
| 492 | ntmp->ntm_bpmftrec = ntmp->ntm_spc * cpr; |
| 493 | else |
| 494 | ntmp->ntm_bpmftrec = (1 << (-cpr)) / ntmp->ntm_bps; |
| 495 | } |
| 496 | dprintf(("ntfs_mountfs(): bps: %d, spc: %d, media: %x, mftrecsz: %d (%d sects)\n", |
| 497 | ntmp->ntm_bps,ntmp->ntm_spc,ntmp->ntm_bootfile.bf_media, |
| 498 | ntmp->ntm_mftrecsz,ntmp->ntm_bpmftrec)); |
| 499 | dprintf(("ntfs_mountfs(): mftcn: 0x%x|0x%x\n", |
| 500 | (u_int32_t)ntmp->ntm_mftcn,(u_int32_t)ntmp->ntm_mftmirrcn)); |
| 501 | |
| 502 | ntmp->ntm_mountp = mp; |
| 503 | ntmp->ntm_dev = dev; |
| 504 | ntmp->ntm_devvp = devvp; |
| 505 | ntmp->ntm_uid = argsp->uid; |
| 506 | ntmp->ntm_gid = argsp->gid; |
| 507 | ntmp->ntm_mode = argsp->mode; |
| 508 | ntmp->ntm_flag = argsp->flag; |
| 509 | |
| 510 | /* Copy in the 8-bit to Unicode conversion table */ |
| 511 | if (argsp->flag & NTFSMNT_U2WTABLE) { |
| 512 | ntfs_82u_init(ntmp, argsp->u2w); |
| 513 | } else { |
| 514 | ntfs_82u_init(ntmp, NULL); |
| 515 | } |
| 516 | |
| 517 | /* Initialize Unicode to 8-bit table from 8toU table */ |
| 518 | ntfs_u28_init(ntmp, ntmp->ntm_82u); |
| 519 | |
| 520 | mp->mnt_data = (qaddr_t)ntmp; |
| 521 | |
| 522 | dprintf(("ntfs_mountfs(): case-%s,%s uid: %d, gid: %d, mode: %o\n", |
| 523 | (ntmp->ntm_flag & NTFS_MFLAG_CASEINS)?"insens.":"sens.", |
| 524 | (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)?" allnames,":"", |
| 525 | ntmp->ntm_uid, ntmp->ntm_gid, ntmp->ntm_mode)); |
| 526 | |
| 527 | /* |
| 528 | * We read in some system nodes to do not allow |
| 529 | * reclaim them and to have everytime access to them. |
| 530 | */ |
| 531 | { |
| 532 | int pi[3] = { NTFS_MFTINO, NTFS_ROOTINO, NTFS_BITMAPINO }; |
| 533 | for (i=0; i<3; i++) { |
| 534 | error = VFS_VGET(mp, pi[i], &(ntmp->ntm_sysvn[pi[i]])); |
| 535 | if(error) |
| 536 | goto out1; |
| 537 | ntmp->ntm_sysvn[pi[i]]->v_flag |= VSYSTEM; |
| 538 | VREF(ntmp->ntm_sysvn[pi[i]]); |
| 539 | vput(ntmp->ntm_sysvn[pi[i]]); |
| 540 | } |
| 541 | } |
| 542 | |
| 543 | /* read the Unicode lowercase --> uppercase translation table, |
| 544 | * if necessary */ |
| 545 | if ((error = ntfs_toupper_use(mp, ntmp))) |
| 546 | goto out1; |
| 547 | |
| 548 | /* |
| 549 | * Scan $BitMap and count free clusters |
| 550 | */ |
| 551 | error = ntfs_calccfree(ntmp, &ntmp->ntm_cfree); |
| 552 | if(error) |
| 553 | goto out1; |
| 554 | |
| 555 | /* |
| 556 | * Read and translate to internal format attribute |
| 557 | * definition file. |
| 558 | */ |
| 559 | { |
| 560 | int num,j; |
| 561 | struct attrdef ad; |
| 562 | |
| 563 | /* Open $AttrDef */ |
| 564 | error = VFS_VGET(mp, NTFS_ATTRDEFINO, &vp ); |
| 565 | if(error) |
| 566 | goto out1; |
| 567 | |
| 568 | /* Count valid entries */ |
| 569 | for(num=0;;num++) { |
| 570 | error = ntfs_readattr(ntmp, VTONT(vp), |
| 571 | NTFS_A_DATA, NULL, |
| 572 | num * sizeof(ad), sizeof(ad), |
| 573 | &ad, NULL); |
| 574 | if (error) |
| 575 | goto out1; |
| 576 | if (ad.ad_name[0] == 0) |
| 577 | break; |
| 578 | } |
| 579 | |
| 580 | /* Alloc memory for attribute definitions */ |
| 581 | MALLOC(ntmp->ntm_ad, struct ntvattrdef *, |
| 582 | num * sizeof(struct ntvattrdef), |
| 583 | M_NTFSMNT, M_WAITOK); |
| 584 | |
| 585 | ntmp->ntm_adnum = num; |
| 586 | |
| 587 | /* Read them and translate */ |
| 588 | for(i=0;i<num;i++){ |
| 589 | error = ntfs_readattr(ntmp, VTONT(vp), |
| 590 | NTFS_A_DATA, NULL, |
| 591 | i * sizeof(ad), sizeof(ad), |
| 592 | &ad, NULL); |
| 593 | if (error) |
| 594 | goto out1; |
| 595 | j = 0; |
| 596 | do { |
| 597 | ntmp->ntm_ad[i].ad_name[j] = ad.ad_name[j]; |
| 598 | } while(ad.ad_name[j++]); |
| 599 | ntmp->ntm_ad[i].ad_namelen = j - 1; |
| 600 | ntmp->ntm_ad[i].ad_type = ad.ad_type; |
| 601 | } |
| 602 | |
| 603 | vput(vp); |
| 604 | } |
| 605 | |
| 606 | #if defined(__FreeBSD__) |
| 607 | mp->mnt_stat.f_fsid.val[0] = dev2udev(dev); |
| 608 | mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum; |
| 609 | #else |
| 610 | mp->mnt_stat.f_fsid.val[0] = dev; |
| 611 | mp->mnt_stat.f_fsid.val[1] = makefstype(MOUNT_NTFS); |
| 612 | #endif |
| 613 | mp->mnt_maxsymlinklen = 0; |
| 614 | mp->mnt_flag |= MNT_LOCAL; |
| 615 | devvp->v_specmountpoint = mp; |
| 616 | return (0); |
| 617 | |
| 618 | out1: |
| 619 | for(i=0;i<NTFS_SYSNODESNUM;i++) |
| 620 | if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); |
| 621 | |
| 622 | if (vflush(mp, 0, 0)) |
| 623 | dprintf(("ntfs_mountfs: vflush failed\n")); |
| 624 | |
| 625 | out: |
| 626 | devvp->v_specmountpoint = NULL; |
| 627 | if (bp) |
| 628 | brelse(bp); |
| 629 | |
| 630 | #if defined __NetBSD__ |
| 631 | /* lock the device vnode before calling VOP_CLOSE() */ |
| 632 | VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); |
| 633 | (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, td); |
| 634 | VOP__UNLOCK(devvp, 0, td); |
| 635 | #else |
| 636 | (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, td); |
| 637 | #endif |
| 638 | |
| 639 | return (error); |
| 640 | } |
| 641 | |
| 642 | #if !defined(__FreeBSD__) |
| 643 | static int |
| 644 | ntfs_start ( |
| 645 | struct mount *mp, |
| 646 | int flags, |
| 647 | struct thread *td) |
| 648 | { |
| 649 | return (0); |
| 650 | } |
| 651 | #endif |
| 652 | |
| 653 | static int |
| 654 | ntfs_unmount( |
| 655 | struct mount *mp, |
| 656 | int mntflags, |
| 657 | struct thread *td) |
| 658 | { |
| 659 | struct ntfsmount *ntmp; |
| 660 | int error, ronly = 0, flags, i; |
| 661 | |
| 662 | dprintf(("ntfs_unmount: unmounting...\n")); |
| 663 | ntmp = VFSTONTFS(mp); |
| 664 | |
| 665 | flags = 0; |
| 666 | if(mntflags & MNT_FORCE) |
| 667 | flags |= FORCECLOSE; |
| 668 | |
| 669 | dprintf(("ntfs_unmount: vflushing...\n")); |
| 670 | error = vflush(mp, 0, flags | SKIPSYSTEM); |
| 671 | if (error) { |
| 672 | printf("ntfs_unmount: vflush failed: %d\n",error); |
| 673 | return (error); |
| 674 | } |
| 675 | |
| 676 | /* Check if only system vnodes are rest */ |
| 677 | for(i=0;i<NTFS_SYSNODESNUM;i++) |
| 678 | if((ntmp->ntm_sysvn[i]) && |
| 679 | (ntmp->ntm_sysvn[i]->v_usecount > 1)) return (EBUSY); |
| 680 | |
| 681 | /* Dereference all system vnodes */ |
| 682 | for(i=0;i<NTFS_SYSNODESNUM;i++) |
| 683 | if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); |
| 684 | |
| 685 | /* vflush system vnodes */ |
| 686 | error = vflush(mp, 0, flags); |
| 687 | if (error) |
| 688 | printf("ntfs_unmount: vflush failed(sysnodes): %d\n",error); |
| 689 | |
| 690 | /* Check if the type of device node isn't VBAD before |
| 691 | * touching v_specinfo. If the device vnode is revoked, the |
| 692 | * field is NULL and touching it causes null pointer derefercence. |
| 693 | */ |
| 694 | if (ntmp->ntm_devvp->v_type != VBAD) |
| 695 | ntmp->ntm_devvp->v_specmountpoint = NULL; |
| 696 | |
| 697 | vinvalbuf(ntmp->ntm_devvp, V_SAVE, td, 0, 0); |
| 698 | |
| 699 | #if defined(__NetBSD__) |
| 700 | /* lock the device vnode before calling VOP_CLOSE() */ |
| 701 | VOP_LOCK(ntmp->ntm_devvp, LK_EXCLUSIVE | LK_RETRY); |
| 702 | error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE, td); |
| 703 | VOP__UNLOCK(ntmp->ntm_devvp, 0, td); |
| 704 | #else |
| 705 | error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE, td); |
| 706 | #endif |
| 707 | |
| 708 | vrele(ntmp->ntm_devvp); |
| 709 | |
| 710 | /* free the toupper table, if this has been last mounted ntfs volume */ |
| 711 | ntfs_toupper_unuse(); |
| 712 | |
| 713 | dprintf(("ntfs_umount: freeing memory...\n")); |
| 714 | ntfs_u28_uninit(ntmp); |
| 715 | ntfs_82u_uninit(ntmp); |
| 716 | mp->mnt_data = (qaddr_t)0; |
| 717 | mp->mnt_flag &= ~MNT_LOCAL; |
| 718 | FREE(ntmp->ntm_ad, M_NTFSMNT); |
| 719 | FREE(ntmp, M_NTFSMNT); |
| 720 | return (error); |
| 721 | } |
| 722 | |
| 723 | static int |
| 724 | ntfs_root( |
| 725 | struct mount *mp, |
| 726 | struct vnode **vpp ) |
| 727 | { |
| 728 | struct vnode *nvp; |
| 729 | int error = 0; |
| 730 | |
| 731 | dprintf(("ntfs_root(): sysvn: %p\n", |
| 732 | VFSTONTFS(mp)->ntm_sysvn[NTFS_ROOTINO])); |
| 733 | error = VFS_VGET(mp, (ino_t)NTFS_ROOTINO, &nvp); |
| 734 | if(error) { |
| 735 | printf("ntfs_root: VFS_VGET failed: %d\n",error); |
| 736 | return (error); |
| 737 | } |
| 738 | |
| 739 | *vpp = nvp; |
| 740 | return (0); |
| 741 | } |
| 742 | |
| 743 | #if !defined(__FreeBSD__) |
| 744 | static int |
| 745 | ntfs_quotactl ( |
| 746 | struct mount *mp, |
| 747 | int cmds, |
| 748 | uid_t uid, |
| 749 | caddr_t arg, |
| 750 | struct thread *td) |
| 751 | { |
| 752 | printf("\nntfs_quotactl():\n"); |
| 753 | return EOPNOTSUPP; |
| 754 | } |
| 755 | #endif |
| 756 | |
| 757 | int |
| 758 | ntfs_calccfree( |
| 759 | struct ntfsmount *ntmp, |
| 760 | cn_t *cfreep) |
| 761 | { |
| 762 | struct vnode *vp; |
| 763 | u_int8_t *tmp; |
| 764 | int j, error; |
| 765 | long cfree = 0; |
| 766 | size_t bmsize, i; |
| 767 | |
| 768 | vp = ntmp->ntm_sysvn[NTFS_BITMAPINO]; |
| 769 | |
| 770 | bmsize = VTOF(vp)->f_size; |
| 771 | |
| 772 | MALLOC(tmp, u_int8_t *, bmsize, M_TEMP, M_WAITOK); |
| 773 | |
| 774 | error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, |
| 775 | 0, bmsize, tmp, NULL); |
| 776 | if (error) |
| 777 | goto out; |
| 778 | |
| 779 | for(i=0;i<bmsize;i++) |
| 780 | for(j=0;j<8;j++) |
| 781 | if(~tmp[i] & (1 << j)) cfree++; |
| 782 | *cfreep = cfree; |
| 783 | |
| 784 | out: |
| 785 | FREE(tmp, M_TEMP); |
| 786 | return(error); |
| 787 | } |
| 788 | |
| 789 | static int |
| 790 | ntfs_statfs( |
| 791 | struct mount *mp, |
| 792 | struct statfs *sbp, |
| 793 | struct thread *td) |
| 794 | { |
| 795 | struct ntfsmount *ntmp = VFSTONTFS(mp); |
| 796 | u_int64_t mftsize,mftallocated; |
| 797 | |
| 798 | dprintf(("ntfs_statfs():\n")); |
| 799 | |
| 800 | mftsize = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_size; |
| 801 | mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated; |
| 802 | |
| 803 | #if defined(__FreeBSD__) |
| 804 | sbp->f_type = mp->mnt_vfc->vfc_typenum; |
| 805 | #elif defined(__NetBSD__) |
| 806 | sbp->f_type = 0; |
| 807 | #else |
| 808 | sbp->f_type = MOUNT_NTFS; |
| 809 | #endif |
| 810 | sbp->f_bsize = ntmp->ntm_bps; |
| 811 | sbp->f_iosize = ntmp->ntm_bps * ntmp->ntm_spc; |
| 812 | sbp->f_blocks = ntmp->ntm_bootfile.bf_spv; |
| 813 | sbp->f_bfree = sbp->f_bavail = ntfs_cntobn(ntmp->ntm_cfree); |
| 814 | sbp->f_ffree = sbp->f_bfree / ntmp->ntm_bpmftrec; |
| 815 | sbp->f_files = mftallocated / ntfs_bntob(ntmp->ntm_bpmftrec) + |
| 816 | sbp->f_ffree; |
| 817 | if (sbp != &mp->mnt_stat) { |
| 818 | bcopy((caddr_t)mp->mnt_stat.f_mntonname, |
| 819 | (caddr_t)&sbp->f_mntonname[0], MNAMELEN); |
| 820 | bcopy((caddr_t)mp->mnt_stat.f_mntfromname, |
| 821 | (caddr_t)&sbp->f_mntfromname[0], MNAMELEN); |
| 822 | } |
| 823 | sbp->f_flags = mp->mnt_flag; |
| 824 | #ifdef __NetBSD__ |
| 825 | strncpy(sbp->f_fstypename, mp->mnt_op->vfs_name, MFSNAMELEN); |
| 826 | #endif |
| 827 | |
| 828 | return (0); |
| 829 | } |
| 830 | |
| 831 | #if !defined(__FreeBSD__) |
| 832 | static int |
| 833 | ntfs_sync ( |
| 834 | struct mount *mp, |
| 835 | int waitfor, |
| 836 | struct ucred *cred, |
| 837 | struct thread *td) |
| 838 | { |
| 839 | /*dprintf(("ntfs_sync():\n"));*/ |
| 840 | return (0); |
| 841 | } |
| 842 | #endif |
| 843 | |
| 844 | /*ARGSUSED*/ |
| 845 | static int |
| 846 | ntfs_fhtovp( |
| 847 | struct mount *mp, |
| 848 | struct fid *fhp, |
| 849 | struct vnode **vpp) |
| 850 | { |
| 851 | struct vnode *nvp; |
| 852 | struct ntfid *ntfhp = (struct ntfid *)fhp; |
| 853 | int error; |
| 854 | |
| 855 | ddprintf(("ntfs_fhtovp(): %d\n", ntfhp->ntfid_ino)); |
| 856 | |
| 857 | if ((error = VFS_VGET(mp, ntfhp->ntfid_ino, &nvp)) != 0) { |
| 858 | *vpp = NULLVP; |
| 859 | return (error); |
| 860 | } |
| 861 | /* XXX as unlink/rmdir/mkdir/creat are not currently possible |
| 862 | * with NTFS, we don't need to check anything else for now */ |
| 863 | *vpp = nvp; |
| 864 | |
| 865 | return (0); |
| 866 | } |
| 867 | |
| 868 | static int |
| 869 | ntfs_vptofh( |
| 870 | struct vnode *vp, |
| 871 | struct fid *fhp) |
| 872 | { |
| 873 | struct ntnode *ntp; |
| 874 | struct ntfid *ntfhp; |
| 875 | |
| 876 | ddprintf(("ntfs_fhtovp(): %p\n", vp)); |
| 877 | |
| 878 | ntp = VTONT(vp); |
| 879 | ntfhp = (struct ntfid *)fhp; |
| 880 | ntfhp->ntfid_len = sizeof(struct ntfid); |
| 881 | ntfhp->ntfid_ino = ntp->i_number; |
| 882 | /* ntfhp->ntfid_gen = ntp->i_gen; */ |
| 883 | return (0); |
| 884 | } |
| 885 | |
| 886 | int |
| 887 | ntfs_vgetex( |
| 888 | struct mount *mp, |
| 889 | ino_t ino, |
| 890 | u_int32_t attrtype, |
| 891 | char *attrname, |
| 892 | u_long lkflags, |
| 893 | u_long flags, |
| 894 | struct thread *td, |
| 895 | struct vnode **vpp) |
| 896 | { |
| 897 | int error; |
| 898 | struct ntfsmount *ntmp; |
| 899 | struct ntnode *ip; |
| 900 | struct fnode *fp; |
| 901 | struct vnode *vp; |
| 902 | enum vtype f_type; |
| 903 | |
| 904 | dprintf(("ntfs_vgetex: ino: %d, attr: 0x%x:%s, lkf: 0x%lx, f: 0x%lx\n", |
| 905 | ino, attrtype, attrname?attrname:"", (u_long)lkflags, |
| 906 | (u_long)flags )); |
| 907 | |
| 908 | ntmp = VFSTONTFS(mp); |
| 909 | *vpp = NULL; |
| 910 | |
| 911 | /* Get ntnode */ |
| 912 | error = ntfs_ntlookup(ntmp, ino, &ip); |
| 913 | if (error) { |
| 914 | printf("ntfs_vget: ntfs_ntget failed\n"); |
| 915 | return (error); |
| 916 | } |
| 917 | |
| 918 | /* It may be not initialized fully, so force load it */ |
| 919 | if (!(flags & VG_DONTLOADIN) && !(ip->i_flag & IN_LOADED)) { |
| 920 | error = ntfs_loadntnode(ntmp, ip); |
| 921 | if(error) { |
| 922 | printf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: %d\n", |
| 923 | ip->i_number); |
| 924 | ntfs_ntput(ip); |
| 925 | return (error); |
| 926 | } |
| 927 | } |
| 928 | |
| 929 | error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp); |
| 930 | if (error) { |
| 931 | printf("ntfs_vget: ntfs_fget failed\n"); |
| 932 | ntfs_ntput(ip); |
| 933 | return (error); |
| 934 | } |
| 935 | |
| 936 | f_type = VNON; |
| 937 | if (!(flags & VG_DONTVALIDFN) && !(fp->f_flag & FN_VALID)) { |
| 938 | if ((ip->i_frflag & NTFS_FRFLAG_DIR) && |
| 939 | (fp->f_attrtype == NTFS_A_DATA && fp->f_attrname == NULL)) { |
| 940 | f_type = VDIR; |
| 941 | } else if (flags & VG_EXT) { |
| 942 | f_type = VNON; |
| 943 | fp->f_size = fp->f_allocated = 0; |
| 944 | } else { |
| 945 | f_type = VREG; |
| 946 | |
| 947 | error = ntfs_filesize(ntmp, fp, |
| 948 | &fp->f_size, &fp->f_allocated); |
| 949 | if (error) { |
| 950 | ntfs_ntput(ip); |
| 951 | return (error); |
| 952 | } |
| 953 | } |
| 954 | |
| 955 | fp->f_flag |= FN_VALID; |
| 956 | } |
| 957 | |
| 958 | if (FTOV(fp)) { |
| 959 | VGET(FTOV(fp), lkflags, td); |
| 960 | *vpp = FTOV(fp); |
| 961 | ntfs_ntput(ip); |
| 962 | return (0); |
| 963 | } |
| 964 | |
| 965 | error = getnewvnode(VT_NTFS, ntmp->ntm_mountp, ntfs_vnodeop_p, &vp); |
| 966 | if(error) { |
| 967 | ntfs_frele(fp); |
| 968 | ntfs_ntput(ip); |
| 969 | return (error); |
| 970 | } |
| 971 | dprintf(("ntfs_vget: vnode: %p for ntnode: %d\n", vp,ino)); |
| 972 | |
| 973 | #ifdef __FreeBSD__ |
| 974 | lockinit(&fp->f_lock, 0, "fnode", VLKTIMEOUT, 0); |
| 975 | #endif |
| 976 | fp->f_vp = vp; |
| 977 | vp->v_data = fp; |
| 978 | vp->v_type = f_type; |
| 979 | |
| 980 | if (ino == NTFS_ROOTINO) |
| 981 | vp->v_flag |= VROOT; |
| 982 | |
| 983 | ntfs_ntput(ip); |
| 984 | |
| 985 | if (lkflags & LK_TYPE_MASK) { |
| 986 | error = VN_LOCK(vp, lkflags, td); |
| 987 | if (error) { |
| 988 | vput(vp); |
| 989 | return (error); |
| 990 | } |
| 991 | } |
| 992 | |
| 993 | *vpp = vp; |
| 994 | return (0); |
| 995 | |
| 996 | } |
| 997 | |
| 998 | static int |
| 999 | ntfs_vget( |
| 1000 | struct mount *mp, |
| 1001 | ino_t ino, |
| 1002 | struct vnode **vpp) |
| 1003 | { |
| 1004 | return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL, |
| 1005 | LK_EXCLUSIVE | LK_RETRY, 0, curthread, vpp); |
| 1006 | } |
| 1007 | |
| 1008 | #if defined(__FreeBSD__) |
| 1009 | static struct vfsops ntfs_vfsops = { |
| 1010 | ntfs_mount, |
| 1011 | vfs_stdstart, |
| 1012 | ntfs_unmount, |
| 1013 | ntfs_root, |
| 1014 | vfs_stdquotactl, |
| 1015 | ntfs_statfs, |
| 1016 | vfs_stdsync, |
| 1017 | ntfs_vget, |
| 1018 | ntfs_fhtovp, |
| 1019 | ntfs_checkexp, |
| 1020 | ntfs_vptofh, |
| 1021 | ntfs_init, |
| 1022 | ntfs_nthash_uninit, /* see ntfs_ihash.c */ |
| 1023 | vfs_stdextattrctl, |
| 1024 | }; |
| 1025 | VFS_SET(ntfs_vfsops, ntfs, 0); |
| 1026 | #elif defined(__NetBSD__) |
| 1027 | extern struct vnodeopv_desc ntfs_vnodeop_opv_desc; |
| 1028 | |
| 1029 | struct vnodeopv_desc *ntfs_vnodeopv_descs[] = { |
| 1030 | &ntfs_vnodeop_opv_desc, |
| 1031 | NULL, |
| 1032 | }; |
| 1033 | |
| 1034 | struct vfsops ntfs_vfsops = { |
| 1035 | MOUNT_NTFS, |
| 1036 | ntfs_mount, |
| 1037 | ntfs_start, |
| 1038 | ntfs_unmount, |
| 1039 | ntfs_root, |
| 1040 | ntfs_quotactl, |
| 1041 | ntfs_statfs, |
| 1042 | ntfs_sync, |
| 1043 | ntfs_vget, |
| 1044 | ntfs_fhtovp, |
| 1045 | ntfs_vptofh, |
| 1046 | ntfs_init, |
| 1047 | ntfs_sysctl, |
| 1048 | ntfs_mountroot, |
| 1049 | ntfs_checkexp, |
| 1050 | ntfs_vnodeopv_descs, |
| 1051 | }; |
| 1052 | #else /* !NetBSD && !FreeBSD */ |
| 1053 | static struct vfsops ntfs_vfsops = { |
| 1054 | ntfs_mount, |
| 1055 | ntfs_start, |
| 1056 | ntfs_unmount, |
| 1057 | ntfs_root, |
| 1058 | ntfs_quotactl, |
| 1059 | ntfs_statfs, |
| 1060 | ntfs_sync, |
| 1061 | ntfs_vget, |
| 1062 | ntfs_fhtovp, |
| 1063 | ntfs_vptofh, |
| 1064 | ntfs_init, |
| 1065 | }; |
| 1066 | VFS_SET(ntfs_vfsops, ntfs, MOUNT_NTFS, 0); |
| 1067 | #endif |
| 1068 | |
| 1069 | |