| 1 | /*- |
| 2 | * Copyright (c) 1998, 1999 Semen Ustimenko (semenu@FreeBSD.org) |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * |
| 14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 15 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 18 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 19 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 20 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 21 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 22 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 23 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 24 | * SUCH DAMAGE. |
| 25 | * |
| 26 | * $FreeBSD: src/sys/fs/hpfs/hpfs_vnops.c,v 1.2.2.2 2002/01/15 18:35:09 semenu Exp $ |
| 27 | */ |
| 28 | |
| 29 | #include <sys/param.h> |
| 30 | #include <sys/systm.h> |
| 31 | #include <sys/kernel.h> |
| 32 | #include <sys/proc.h> |
| 33 | #include <sys/time.h> |
| 34 | #include <sys/types.h> |
| 35 | #include <sys/stat.h> |
| 36 | #include <sys/vnode.h> |
| 37 | #include <sys/mount.h> |
| 38 | #include <sys/namei.h> |
| 39 | #include <sys/malloc.h> |
| 40 | #include <sys/buf.h> |
| 41 | #include <sys/dirent.h> |
| 42 | |
| 43 | #include <vm/vm.h> |
| 44 | #include <vm/vm_param.h> |
| 45 | #if !defined(__FreeBSD__) |
| 46 | #include <vm/vm_prot.h> |
| 47 | #endif |
| 48 | #include <vm/vm_page.h> |
| 49 | #include <vm/vm_object.h> |
| 50 | #include <vm/vm_pager.h> |
| 51 | #include <vm/vm_zone.h> |
| 52 | #if defined(__FreeBSD__) |
| 53 | #include <vm/vnode_pager.h> |
| 54 | #endif |
| 55 | #include <vm/vm_extern.h> |
| 56 | |
| 57 | #if !defined(__FreeBSD__) |
| 58 | #include <miscfs/specfs/specdev.h> |
| 59 | #include <miscfs/genfs/genfs.h> |
| 60 | #endif |
| 61 | |
| 62 | #include <sys/unistd.h> /* for pathconf(2) constants */ |
| 63 | |
| 64 | #include <fs/hpfs/hpfs.h> |
| 65 | #include <fs/hpfs/hpfsmount.h> |
| 66 | #include <fs/hpfs/hpfs_subr.h> |
| 67 | #include <fs/hpfs/hpfs_ioctl.h> |
| 68 | |
| 69 | static int hpfs_de_uiomove __P((struct hpfsmount *, struct hpfsdirent *, |
| 70 | struct uio *)); |
| 71 | static int hpfs_ioctl __P((struct vop_ioctl_args *ap)); |
| 72 | static int hpfs_read __P((struct vop_read_args *)); |
| 73 | static int hpfs_write __P((struct vop_write_args *ap)); |
| 74 | static int hpfs_getattr __P((struct vop_getattr_args *ap)); |
| 75 | static int hpfs_setattr __P((struct vop_setattr_args *ap)); |
| 76 | static int hpfs_inactive __P((struct vop_inactive_args *ap)); |
| 77 | static int hpfs_print __P((struct vop_print_args *ap)); |
| 78 | static int hpfs_reclaim __P((struct vop_reclaim_args *ap)); |
| 79 | static int hpfs_strategy __P((struct vop_strategy_args *ap)); |
| 80 | static int hpfs_access __P((struct vop_access_args *ap)); |
| 81 | static int hpfs_open __P((struct vop_open_args *ap)); |
| 82 | static int hpfs_close __P((struct vop_close_args *ap)); |
| 83 | static int hpfs_readdir __P((struct vop_readdir_args *ap)); |
| 84 | static int hpfs_lookup __P((struct vop_lookup_args *ap)); |
| 85 | static int hpfs_create __P((struct vop_create_args *)); |
| 86 | static int hpfs_remove __P((struct vop_remove_args *)); |
| 87 | static int hpfs_bmap __P((struct vop_bmap_args *ap)); |
| 88 | #if defined(__FreeBSD__) |
| 89 | static int hpfs_getpages __P((struct vop_getpages_args *ap)); |
| 90 | static int hpfs_putpages __P((struct vop_putpages_args *)); |
| 91 | static int hpfs_fsync __P((struct vop_fsync_args *ap)); |
| 92 | #endif |
| 93 | static int hpfs_pathconf __P((struct vop_pathconf_args *ap)); |
| 94 | |
| 95 | #if defined(__FreeBSD__) |
| 96 | int |
| 97 | hpfs_getpages(ap) |
| 98 | struct vop_getpages_args *ap; |
| 99 | { |
| 100 | return vnode_pager_generic_getpages(ap->a_vp, ap->a_m, ap->a_count, |
| 101 | ap->a_reqpage); |
| 102 | } |
| 103 | |
| 104 | int |
| 105 | hpfs_putpages(ap) |
| 106 | struct vop_putpages_args *ap; |
| 107 | { |
| 108 | return vnode_pager_generic_putpages(ap->a_vp, ap->a_m, ap->a_count, |
| 109 | ap->a_sync, ap->a_rtvals); |
| 110 | } |
| 111 | |
| 112 | static int |
| 113 | hpfs_fsync(ap) |
| 114 | struct vop_fsync_args /* { |
| 115 | struct vnode *a_vp; |
| 116 | struct ucred *a_cred; |
| 117 | int a_waitfor; |
| 118 | struct proc *a_p; |
| 119 | } */ *ap; |
| 120 | { |
| 121 | struct vnode *vp = ap->a_vp; |
| 122 | int s; |
| 123 | struct buf *bp, *nbp; |
| 124 | |
| 125 | /* |
| 126 | * Flush all dirty buffers associated with a vnode. |
| 127 | */ |
| 128 | loop: |
| 129 | s = splbio(); |
| 130 | for (bp = TAILQ_FIRST(&vp->v_dirtyblkhd); bp; bp = nbp) { |
| 131 | nbp = TAILQ_NEXT(bp, b_vnbufs); |
| 132 | if (BUF_LOCK(bp, LK_EXCLUSIVE | LK_NOWAIT)) |
| 133 | continue; |
| 134 | if ((bp->b_flags & B_DELWRI) == 0) |
| 135 | panic("hpfs_fsync: not dirty"); |
| 136 | bremfree(bp); |
| 137 | splx(s); |
| 138 | (void) bwrite(bp); |
| 139 | goto loop; |
| 140 | } |
| 141 | while (vp->v_numoutput) { |
| 142 | vp->v_flag |= VBWAIT; |
| 143 | (void) tsleep((caddr_t)&vp->v_numoutput, PRIBIO + 1, "hpfsn", 0); |
| 144 | } |
| 145 | #ifdef DIAGNOSTIC |
| 146 | if (!TAILQ_EMPTY(&vp->v_dirtyblkhd)) { |
| 147 | vprint("hpfs_fsync: dirty", vp); |
| 148 | goto loop; |
| 149 | } |
| 150 | #endif |
| 151 | splx(s); |
| 152 | |
| 153 | /* |
| 154 | * Write out the on-disc version of the vnode. |
| 155 | */ |
| 156 | return hpfs_update(VTOHP(vp)); |
| 157 | } |
| 158 | |
| 159 | #endif |
| 160 | |
| 161 | static int |
| 162 | hpfs_ioctl ( |
| 163 | struct vop_ioctl_args /* { |
| 164 | struct vnode *a_vp; |
| 165 | u_long a_command; |
| 166 | caddr_t a_data; |
| 167 | int a_fflag; |
| 168 | struct ucred *a_cred; |
| 169 | struct proc *a_p; |
| 170 | } */ *ap) |
| 171 | { |
| 172 | register struct vnode *vp = ap->a_vp; |
| 173 | register struct hpfsnode *hp = VTOHP(vp); |
| 174 | int error; |
| 175 | |
| 176 | printf("hpfs_ioctl(0x%x, 0x%lx, 0x%p, 0x%x): ", |
| 177 | hp->h_no, ap->a_command, ap->a_data, ap->a_fflag); |
| 178 | |
| 179 | switch (ap->a_command) { |
| 180 | case HPFSIOCGEANUM: { |
| 181 | u_long eanum; |
| 182 | u_long passed; |
| 183 | struct ea *eap; |
| 184 | |
| 185 | eanum = 0; |
| 186 | |
| 187 | if (hp->h_fn.fn_ealen > 0) { |
| 188 | eap = (struct ea *)&(hp->h_fn.fn_int); |
| 189 | passed = 0; |
| 190 | |
| 191 | while (passed < hp->h_fn.fn_ealen) { |
| 192 | |
| 193 | printf("EAname: %s\n", EA_NAME(eap)); |
| 194 | |
| 195 | eanum++; |
| 196 | passed += sizeof(struct ea) + |
| 197 | eap->ea_namelen + 1 + eap->ea_vallen; |
| 198 | eap = (struct ea *)((caddr_t)hp->h_fn.fn_int + |
| 199 | passed); |
| 200 | } |
| 201 | error = 0; |
| 202 | } else { |
| 203 | error = ENOENT; |
| 204 | } |
| 205 | |
| 206 | printf("%lu eas\n", eanum); |
| 207 | |
| 208 | *(u_long *)ap->a_data = eanum; |
| 209 | |
| 210 | break; |
| 211 | } |
| 212 | case HPFSIOCGEASZ: { |
| 213 | u_long eanum; |
| 214 | u_long passed; |
| 215 | struct ea *eap; |
| 216 | |
| 217 | printf("EA%ld\n", *(u_long *)ap->a_data); |
| 218 | |
| 219 | eanum = 0; |
| 220 | if (hp->h_fn.fn_ealen > 0) { |
| 221 | eap = (struct ea *)&(hp->h_fn.fn_int); |
| 222 | passed = 0; |
| 223 | |
| 224 | error = ENOENT; |
| 225 | while (passed < hp->h_fn.fn_ealen) { |
| 226 | printf("EAname: %s\n", EA_NAME(eap)); |
| 227 | |
| 228 | if (eanum == *(u_long *)ap->a_data) { |
| 229 | *(u_long *)ap->a_data = |
| 230 | eap->ea_namelen + 1 + |
| 231 | eap->ea_vallen; |
| 232 | |
| 233 | error = 0; |
| 234 | break; |
| 235 | } |
| 236 | |
| 237 | eanum++; |
| 238 | passed += sizeof(struct ea) + |
| 239 | eap->ea_namelen + 1 + eap->ea_vallen; |
| 240 | eap = (struct ea *)((caddr_t)hp->h_fn.fn_int + |
| 241 | passed); |
| 242 | } |
| 243 | } else { |
| 244 | error = ENOENT; |
| 245 | } |
| 246 | |
| 247 | break; |
| 248 | } |
| 249 | case HPFSIOCRDEA: { |
| 250 | u_long eanum; |
| 251 | u_long passed; |
| 252 | struct hpfs_rdea *rdeap; |
| 253 | struct ea *eap; |
| 254 | |
| 255 | rdeap = (struct hpfs_rdea *)ap->a_data; |
| 256 | printf("EA%ld\n", rdeap->ea_no); |
| 257 | |
| 258 | eanum = 0; |
| 259 | if (hp->h_fn.fn_ealen > 0) { |
| 260 | eap = (struct ea *)&(hp->h_fn.fn_int); |
| 261 | passed = 0; |
| 262 | |
| 263 | error = ENOENT; |
| 264 | while (passed < hp->h_fn.fn_ealen) { |
| 265 | printf("EAname: %s\n", EA_NAME(eap)); |
| 266 | |
| 267 | if (eanum == rdeap->ea_no) { |
| 268 | rdeap->ea_sz = eap->ea_namelen + 1 + |
| 269 | eap->ea_vallen; |
| 270 | copyout(EA_NAME(eap),rdeap->ea_data, |
| 271 | rdeap->ea_sz); |
| 272 | error = 0; |
| 273 | break; |
| 274 | } |
| 275 | |
| 276 | eanum++; |
| 277 | passed += sizeof(struct ea) + |
| 278 | eap->ea_namelen + 1 + eap->ea_vallen; |
| 279 | eap = (struct ea *)((caddr_t)hp->h_fn.fn_int + |
| 280 | passed); |
| 281 | } |
| 282 | } else { |
| 283 | error = ENOENT; |
| 284 | } |
| 285 | |
| 286 | break; |
| 287 | } |
| 288 | default: |
| 289 | error = EOPNOTSUPP; |
| 290 | break; |
| 291 | } |
| 292 | return (error); |
| 293 | } |
| 294 | |
| 295 | /* |
| 296 | * Map file offset to disk offset. |
| 297 | */ |
| 298 | int |
| 299 | hpfs_bmap(ap) |
| 300 | struct vop_bmap_args /* { |
| 301 | struct vnode *a_vp; |
| 302 | daddr_t a_bn; |
| 303 | struct vnode **a_vpp; |
| 304 | daddr_t *a_bnp; |
| 305 | int *a_runp; |
| 306 | int *a_runb; |
| 307 | } */ *ap; |
| 308 | { |
| 309 | register struct hpfsnode *hp = VTOHP(ap->a_vp); |
| 310 | int error; |
| 311 | |
| 312 | if (ap->a_vpp != NULL) |
| 313 | *ap->a_vpp = hp->h_devvp; |
| 314 | #if defined(__FreeBSD__) |
| 315 | if (ap->a_runb != NULL) |
| 316 | *ap->a_runb = 0; |
| 317 | #endif |
| 318 | if (ap->a_bnp == NULL) |
| 319 | return (0); |
| 320 | |
| 321 | dprintf(("hpfs_bmap(0x%x, 0x%x): ",hp->h_no, ap->a_bn)); |
| 322 | |
| 323 | error = hpfs_hpbmap (hp, ap->a_bn, ap->a_bnp, ap->a_runp); |
| 324 | |
| 325 | return (error); |
| 326 | } |
| 327 | |
| 328 | static int |
| 329 | hpfs_read(ap) |
| 330 | struct vop_read_args /* { |
| 331 | struct vnode *a_vp; |
| 332 | struct uio *a_uio; |
| 333 | int a_ioflag; |
| 334 | struct ucred *a_cred; |
| 335 | } */ *ap; |
| 336 | { |
| 337 | register struct vnode *vp = ap->a_vp; |
| 338 | register struct hpfsnode *hp = VTOHP(vp); |
| 339 | struct uio *uio = ap->a_uio; |
| 340 | struct buf *bp; |
| 341 | u_int xfersz, toread; |
| 342 | u_int off; |
| 343 | daddr_t lbn, bn; |
| 344 | int resid; |
| 345 | int runl; |
| 346 | int error = 0; |
| 347 | |
| 348 | resid = min (uio->uio_resid, hp->h_fn.fn_size - uio->uio_offset); |
| 349 | |
| 350 | dprintf(("hpfs_read(0x%x, off: %d resid: %d, segflg: %d): [resid: 0x%x]\n",hp->h_no,(u_int32_t)uio->uio_offset,uio->uio_resid,uio->uio_segflg, resid)); |
| 351 | |
| 352 | while (resid) { |
| 353 | lbn = uio->uio_offset >> DEV_BSHIFT; |
| 354 | off = uio->uio_offset & (DEV_BSIZE - 1); |
| 355 | dprintf(("hpfs_read: resid: 0x%x lbn: 0x%x off: 0x%x\n", |
| 356 | uio->uio_resid, lbn, off)); |
| 357 | error = hpfs_hpbmap(hp, lbn, &bn, &runl); |
| 358 | if (error) |
| 359 | return (error); |
| 360 | |
| 361 | toread = min(off + resid, min(DFLTPHYS, (runl+1)*DEV_BSIZE)); |
| 362 | xfersz = (toread + DEV_BSIZE - 1) & ~(DEV_BSIZE - 1); |
| 363 | dprintf(("hpfs_read: bn: 0x%x (0x%x) toread: 0x%x (0x%x)\n", |
| 364 | bn, runl, toread, xfersz)); |
| 365 | |
| 366 | if (toread == 0) |
| 367 | break; |
| 368 | |
| 369 | error = bread(hp->h_devvp, bn, xfersz, NOCRED, &bp); |
| 370 | if (error) { |
| 371 | brelse(bp); |
| 372 | break; |
| 373 | } |
| 374 | |
| 375 | error = uiomove(bp->b_data + off, toread - off, uio); |
| 376 | if(error) { |
| 377 | brelse(bp); |
| 378 | break; |
| 379 | } |
| 380 | brelse(bp); |
| 381 | resid -= toread; |
| 382 | } |
| 383 | dprintf(("hpfs_read: successful\n")); |
| 384 | return (error); |
| 385 | } |
| 386 | |
| 387 | static int |
| 388 | hpfs_write(ap) |
| 389 | struct vop_write_args /* { |
| 390 | struct vnode *a_vp; |
| 391 | struct uio *a_uio; |
| 392 | int a_ioflag; |
| 393 | struct ucred *a_cred; |
| 394 | } */ *ap; |
| 395 | { |
| 396 | register struct vnode *vp = ap->a_vp; |
| 397 | register struct hpfsnode *hp = VTOHP(vp); |
| 398 | struct uio *uio = ap->a_uio; |
| 399 | struct buf *bp; |
| 400 | u_int xfersz, towrite; |
| 401 | u_int off; |
| 402 | daddr_t lbn, bn; |
| 403 | int runl; |
| 404 | int error = 0; |
| 405 | |
| 406 | dprintf(("hpfs_write(0x%x, off: %d resid: %d, segflg: %d):\n",hp->h_no,(u_int32_t)uio->uio_offset,uio->uio_resid,uio->uio_segflg)); |
| 407 | |
| 408 | if (ap->a_ioflag & IO_APPEND) { |
| 409 | dprintf(("hpfs_write: APPEND mode\n")); |
| 410 | uio->uio_offset = hp->h_fn.fn_size; |
| 411 | } |
| 412 | if (uio->uio_offset + uio->uio_resid > hp->h_fn.fn_size) { |
| 413 | error = hpfs_extend (hp, uio->uio_offset + uio->uio_resid); |
| 414 | if (error) { |
| 415 | printf("hpfs_write: hpfs_extend FAILED %d\n", error); |
| 416 | return (error); |
| 417 | } |
| 418 | } |
| 419 | |
| 420 | while (uio->uio_resid) { |
| 421 | lbn = uio->uio_offset >> DEV_BSHIFT; |
| 422 | off = uio->uio_offset & (DEV_BSIZE - 1); |
| 423 | dprintf(("hpfs_write: resid: 0x%x lbn: 0x%x off: 0x%x\n", |
| 424 | uio->uio_resid, lbn, off)); |
| 425 | error = hpfs_hpbmap(hp, lbn, &bn, &runl); |
| 426 | if (error) |
| 427 | return (error); |
| 428 | |
| 429 | towrite = min(off + uio->uio_resid, min(DFLTPHYS, (runl+1)*DEV_BSIZE)); |
| 430 | xfersz = (towrite + DEV_BSIZE - 1) & ~(DEV_BSIZE - 1); |
| 431 | dprintf(("hpfs_write: bn: 0x%x (0x%x) towrite: 0x%x (0x%x)\n", |
| 432 | bn, runl, towrite, xfersz)); |
| 433 | |
| 434 | if ((off == 0) && (towrite == xfersz)) { |
| 435 | bp = getblk(hp->h_devvp, bn, xfersz, 0, 0); |
| 436 | clrbuf(bp); |
| 437 | } else { |
| 438 | error = bread(hp->h_devvp, bn, xfersz, NOCRED, &bp); |
| 439 | if (error) { |
| 440 | brelse(bp); |
| 441 | return (error); |
| 442 | } |
| 443 | } |
| 444 | |
| 445 | error = uiomove(bp->b_data + off, towrite - off, uio); |
| 446 | if(error) { |
| 447 | brelse(bp); |
| 448 | return (error); |
| 449 | } |
| 450 | |
| 451 | if (ap->a_ioflag & IO_SYNC) |
| 452 | bwrite(bp); |
| 453 | else |
| 454 | bawrite(bp); |
| 455 | } |
| 456 | |
| 457 | dprintf(("hpfs_write: successful\n")); |
| 458 | return (0); |
| 459 | } |
| 460 | |
| 461 | /* |
| 462 | * XXXXX do we need hpfsnode locking inside? |
| 463 | */ |
| 464 | static int |
| 465 | hpfs_getattr(ap) |
| 466 | struct vop_getattr_args /* { |
| 467 | struct vnode *a_vp; |
| 468 | struct vattr *a_vap; |
| 469 | struct ucred *a_cred; |
| 470 | struct proc *a_p; |
| 471 | } */ *ap; |
| 472 | { |
| 473 | register struct vnode *vp = ap->a_vp; |
| 474 | register struct hpfsnode *hp = VTOHP(vp); |
| 475 | register struct vattr *vap = ap->a_vap; |
| 476 | int error; |
| 477 | |
| 478 | dprintf(("hpfs_getattr(0x%x):\n", hp->h_no)); |
| 479 | |
| 480 | #if defined(__FreeBSD__) |
| 481 | vap->va_fsid = dev2udev(hp->h_dev); |
| 482 | #else /* defined(__NetBSD__) */ |
| 483 | vap->va_fsid = ip->i_dev; |
| 484 | #endif |
| 485 | vap->va_fileid = hp->h_no; |
| 486 | vap->va_mode = hp->h_mode; |
| 487 | vap->va_nlink = 1; |
| 488 | vap->va_uid = hp->h_uid; |
| 489 | vap->va_gid = hp->h_gid; |
| 490 | vap->va_rdev = 0; /* XXX UNODEV ? */ |
| 491 | vap->va_size = hp->h_fn.fn_size; |
| 492 | vap->va_bytes = ((hp->h_fn.fn_size + DEV_BSIZE-1) & ~(DEV_BSIZE-1)) + |
| 493 | DEV_BSIZE; |
| 494 | |
| 495 | if (!(hp->h_flag & H_PARVALID)) { |
| 496 | error = hpfs_validateparent(hp); |
| 497 | if (error) |
| 498 | return (error); |
| 499 | } |
| 500 | vap->va_atime = hpfstimetounix(hp->h_atime); |
| 501 | vap->va_mtime = hpfstimetounix(hp->h_mtime); |
| 502 | vap->va_ctime = hpfstimetounix(hp->h_ctime); |
| 503 | |
| 504 | vap->va_flags = 0; |
| 505 | vap->va_gen = 0; |
| 506 | vap->va_blocksize = DEV_BSIZE; |
| 507 | vap->va_type = vp->v_type; |
| 508 | vap->va_filerev = 0; |
| 509 | |
| 510 | return (0); |
| 511 | } |
| 512 | |
| 513 | /* |
| 514 | * XXXXX do we need hpfsnode locking inside? |
| 515 | */ |
| 516 | static int |
| 517 | hpfs_setattr(ap) |
| 518 | struct vop_setattr_args /* { |
| 519 | struct vnode *a_vp; |
| 520 | struct vattr *a_vap; |
| 521 | struct ucred *a_cred; |
| 522 | struct proc *a_p; |
| 523 | } */ *ap; |
| 524 | { |
| 525 | struct vnode *vp = ap->a_vp; |
| 526 | struct hpfsnode *hp = VTOHP(vp); |
| 527 | struct vattr *vap = ap->a_vap; |
| 528 | struct ucred *cred = ap->a_cred; |
| 529 | struct proc *p = ap->a_p; |
| 530 | int error; |
| 531 | |
| 532 | dprintf(("hpfs_setattr(0x%x):\n", hp->h_no)); |
| 533 | |
| 534 | /* |
| 535 | * Check for unsettable attributes. |
| 536 | */ |
| 537 | if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) || |
| 538 | (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) || |
| 539 | (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) || |
| 540 | (vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) { |
| 541 | dprintf(("hpfs_setattr: changing nonsettable attr\n")); |
| 542 | return (EINVAL); |
| 543 | } |
| 544 | |
| 545 | /* Can't change flags XXX Could be implemented */ |
| 546 | if (vap->va_flags != VNOVAL) { |
| 547 | printf("hpfs_setattr: FLAGS CANNOT BE SET\n"); |
| 548 | return (EINVAL); |
| 549 | } |
| 550 | |
| 551 | /* Can't change uid/gid XXX Could be implemented */ |
| 552 | if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) { |
| 553 | printf("hpfs_setattr: UID/GID CANNOT BE SET\n"); |
| 554 | return (EINVAL); |
| 555 | } |
| 556 | |
| 557 | /* Can't change mode XXX Could be implemented */ |
| 558 | if (vap->va_mode != (mode_t)VNOVAL) { |
| 559 | printf("hpfs_setattr: MODE CANNOT BE SET\n"); |
| 560 | return (EINVAL); |
| 561 | } |
| 562 | |
| 563 | /* Update times */ |
| 564 | if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL) { |
| 565 | if (vp->v_mount->mnt_flag & MNT_RDONLY) |
| 566 | return (EROFS); |
| 567 | if (cred->cr_uid != hp->h_uid && |
| 568 | (error = suser_xxx(cred, p, PRISON_ROOT)) && |
| 569 | ((vap->va_vaflags & VA_UTIMES_NULL) == 0 || |
| 570 | (error = VOP_ACCESS(vp, VWRITE, cred, p)))) |
| 571 | return (error); |
| 572 | if (vap->va_atime.tv_sec != VNOVAL) |
| 573 | hp->h_atime = vap->va_atime.tv_sec; |
| 574 | if (vap->va_mtime.tv_sec != VNOVAL) |
| 575 | hp->h_mtime = vap->va_mtime.tv_sec; |
| 576 | |
| 577 | hp->h_flag |= H_PARCHANGE; |
| 578 | } |
| 579 | |
| 580 | if (vap->va_size != VNOVAL) { |
| 581 | switch (vp->v_type) { |
| 582 | case VDIR: |
| 583 | return (EISDIR); |
| 584 | case VREG: |
| 585 | if (vp->v_mount->mnt_flag & MNT_RDONLY) |
| 586 | return (EROFS); |
| 587 | break; |
| 588 | default: |
| 589 | printf("hpfs_setattr: WRONG v_type\n"); |
| 590 | return (EINVAL); |
| 591 | } |
| 592 | |
| 593 | if (vap->va_size < hp->h_fn.fn_size) { |
| 594 | #if defined(__FreeBSD__) |
| 595 | error = vtruncbuf(vp, cred, p, vap->va_size, DEV_BSIZE); |
| 596 | if (error) |
| 597 | return (error); |
| 598 | #else /* defined(__NetBSD__) */ |
| 599 | #error Need alternation for vtruncbuf() |
| 600 | #endif |
| 601 | error = hpfs_truncate(hp, vap->va_size); |
| 602 | if (error) |
| 603 | return (error); |
| 604 | |
| 605 | } else if (vap->va_size > hp->h_fn.fn_size) { |
| 606 | #if defined(__FreeBSD__) |
| 607 | vnode_pager_setsize(vp, vap->va_size); |
| 608 | #endif |
| 609 | error = hpfs_extend(hp, vap->va_size); |
| 610 | if (error) |
| 611 | return (error); |
| 612 | } |
| 613 | } |
| 614 | |
| 615 | return (0); |
| 616 | } |
| 617 | |
| 618 | /* |
| 619 | * Last reference to an node. If necessary, write or delete it. |
| 620 | */ |
| 621 | int |
| 622 | hpfs_inactive(ap) |
| 623 | struct vop_inactive_args /* { |
| 624 | struct vnode *a_vp; |
| 625 | } */ *ap; |
| 626 | { |
| 627 | register struct vnode *vp = ap->a_vp; |
| 628 | register struct hpfsnode *hp = VTOHP(vp); |
| 629 | int error; |
| 630 | |
| 631 | dprintf(("hpfs_inactive(0x%x): \n", hp->h_no)); |
| 632 | |
| 633 | if (hp->h_flag & H_CHANGE) { |
| 634 | dprintf(("hpfs_inactive: node changed, update\n")); |
| 635 | error = hpfs_update (hp); |
| 636 | if (error) |
| 637 | return (error); |
| 638 | } |
| 639 | |
| 640 | if (hp->h_flag & H_PARCHANGE) { |
| 641 | dprintf(("hpfs_inactive: parent node changed, update\n")); |
| 642 | error = hpfs_updateparent (hp); |
| 643 | if (error) |
| 644 | return (error); |
| 645 | } |
| 646 | |
| 647 | if (prtactive && vp->v_usecount != 0) |
| 648 | vprint("hpfs_inactive: pushing active", vp); |
| 649 | |
| 650 | if (hp->h_flag & H_INVAL) { |
| 651 | VOP__UNLOCK(vp,0,ap->a_p); |
| 652 | #if defined(__FreeBSD__) |
| 653 | vrecycle(vp, (struct simplelock *)0, ap->a_p); |
| 654 | #else /* defined(__NetBSD__) */ |
| 655 | vgone(vp); |
| 656 | #endif |
| 657 | return (0); |
| 658 | } |
| 659 | |
| 660 | VOP__UNLOCK(vp,0,ap->a_p); |
| 661 | return (0); |
| 662 | } |
| 663 | |
| 664 | /* |
| 665 | * Reclaim an inode so that it can be used for other purposes. |
| 666 | */ |
| 667 | int |
| 668 | hpfs_reclaim(ap) |
| 669 | struct vop_reclaim_args /* { |
| 670 | struct vnode *a_vp; |
| 671 | } */ *ap; |
| 672 | { |
| 673 | register struct vnode *vp = ap->a_vp; |
| 674 | register struct hpfsnode *hp = VTOHP(vp); |
| 675 | |
| 676 | dprintf(("hpfs_reclaim(0x%x0): \n", hp->h_no)); |
| 677 | |
| 678 | hpfs_hphashrem(hp); |
| 679 | |
| 680 | /* Purge old data structures associated with the inode. */ |
| 681 | cache_purge(vp); |
| 682 | if (hp->h_devvp) { |
| 683 | vrele(hp->h_devvp); |
| 684 | hp->h_devvp = NULL; |
| 685 | } |
| 686 | |
| 687 | vp->v_data = NULL; |
| 688 | |
| 689 | FREE(hp, M_HPFSNO); |
| 690 | |
| 691 | return (0); |
| 692 | } |
| 693 | |
| 694 | static int |
| 695 | hpfs_print(ap) |
| 696 | struct vop_print_args /* { |
| 697 | struct vnode *a_vp; |
| 698 | } */ *ap; |
| 699 | { |
| 700 | register struct vnode *vp = ap->a_vp; |
| 701 | register struct hpfsnode *hp = VTOHP(vp); |
| 702 | |
| 703 | printf("tag VT_HPFS, ino 0x%x",hp->h_no); |
| 704 | lockmgr_printinfo(&hp->h_lock); |
| 705 | printf("\n"); |
| 706 | return (0); |
| 707 | } |
| 708 | |
| 709 | /* |
| 710 | * Calculate the logical to physical mapping if not done already, |
| 711 | * then call the device strategy routine. |
| 712 | * |
| 713 | * In order to be able to swap to a file, the VOP_BMAP operation may not |
| 714 | * deadlock on memory. See hpfs_bmap() for details. XXXXXXX (not impl) |
| 715 | */ |
| 716 | int |
| 717 | hpfs_strategy(ap) |
| 718 | struct vop_strategy_args /* { |
| 719 | struct buf *a_bp; |
| 720 | } */ *ap; |
| 721 | { |
| 722 | register struct buf *bp = ap->a_bp; |
| 723 | register struct vnode *vp = ap->a_vp; |
| 724 | struct vnode *nvp; |
| 725 | int error; |
| 726 | |
| 727 | dprintf(("hpfs_strategy(): \n")); |
| 728 | |
| 729 | if (vp->v_type == VBLK || vp->v_type == VCHR) |
| 730 | panic("hpfs_strategy: spec"); |
| 731 | if (bp->b_blkno == bp->b_lblkno) { |
| 732 | error = VOP_BMAP(vp, bp->b_lblkno, &nvp, &bp->b_blkno, NULL, NULL); |
| 733 | if (error) { |
| 734 | printf("hpfs_strategy: VOP_BMAP FAILED %d\n", error); |
| 735 | bp->b_error = error; |
| 736 | bp->b_flags |= B_ERROR; |
| 737 | biodone(bp); |
| 738 | return (error); |
| 739 | } |
| 740 | if ((long)bp->b_blkno == -1) |
| 741 | vfs_bio_clrbuf(bp); |
| 742 | } |
| 743 | if ((long)bp->b_blkno == -1) { |
| 744 | biodone(bp); |
| 745 | return (0); |
| 746 | } |
| 747 | bp->b_dev = nvp->v_rdev; |
| 748 | VOP_STRATEGY(nvp, bp); |
| 749 | return (0); |
| 750 | } |
| 751 | |
| 752 | /* |
| 753 | * XXXXX do we need hpfsnode locking inside? |
| 754 | */ |
| 755 | int |
| 756 | hpfs_access(ap) |
| 757 | struct vop_access_args /* { |
| 758 | struct vnode *a_vp; |
| 759 | int a_mode; |
| 760 | struct ucred *a_cred; |
| 761 | struct proc *a_p; |
| 762 | } */ *ap; |
| 763 | { |
| 764 | struct vnode *vp = ap->a_vp; |
| 765 | struct hpfsnode *hp = VTOHP(vp); |
| 766 | struct ucred *cred = ap->a_cred; |
| 767 | mode_t mask, mode = ap->a_mode; |
| 768 | register gid_t *gp; |
| 769 | int i; |
| 770 | |
| 771 | dprintf(("hpfs_access(0x%x):\n", hp->h_no)); |
| 772 | |
| 773 | /* |
| 774 | * Disallow write attempts on read-only file systems; |
| 775 | * unless the file is a socket, fifo, or a block or |
| 776 | * character device resident on the file system. |
| 777 | */ |
| 778 | if (mode & VWRITE) { |
| 779 | switch ((int)vp->v_type) { |
| 780 | case VDIR: |
| 781 | case VLNK: |
| 782 | case VREG: |
| 783 | if (vp->v_mount->mnt_flag & MNT_RDONLY) |
| 784 | return (EROFS); |
| 785 | break; |
| 786 | } |
| 787 | } |
| 788 | |
| 789 | /* Otherwise, user id 0 always gets access. */ |
| 790 | if (cred->cr_uid == 0) |
| 791 | return (0); |
| 792 | |
| 793 | mask = 0; |
| 794 | |
| 795 | /* Otherwise, check the owner. */ |
| 796 | if (cred->cr_uid == hp->h_uid) { |
| 797 | if (mode & VEXEC) |
| 798 | mask |= S_IXUSR; |
| 799 | if (mode & VREAD) |
| 800 | mask |= S_IRUSR; |
| 801 | if (mode & VWRITE) |
| 802 | mask |= S_IWUSR; |
| 803 | return ((hp->h_mode & mask) == mask ? 0 : EACCES); |
| 804 | } |
| 805 | |
| 806 | /* Otherwise, check the groups. */ |
| 807 | for (i = 0, gp = cred->cr_groups; i < cred->cr_ngroups; i++, gp++) |
| 808 | if (hp->h_gid == *gp) { |
| 809 | if (mode & VEXEC) |
| 810 | mask |= S_IXGRP; |
| 811 | if (mode & VREAD) |
| 812 | mask |= S_IRGRP; |
| 813 | if (mode & VWRITE) |
| 814 | mask |= S_IWGRP; |
| 815 | return ((hp->h_mode & mask) == mask ? 0 : EACCES); |
| 816 | } |
| 817 | |
| 818 | /* Otherwise, check everyone else. */ |
| 819 | if (mode & VEXEC) |
| 820 | mask |= S_IXOTH; |
| 821 | if (mode & VREAD) |
| 822 | mask |= S_IROTH; |
| 823 | if (mode & VWRITE) |
| 824 | mask |= S_IWOTH; |
| 825 | return ((hp->h_mode & mask) == mask ? 0 : EACCES); |
| 826 | } |
| 827 | |
| 828 | /* |
| 829 | * Open called. |
| 830 | * |
| 831 | * Nothing to do. |
| 832 | */ |
| 833 | /* ARGSUSED */ |
| 834 | static int |
| 835 | hpfs_open(ap) |
| 836 | struct vop_open_args /* { |
| 837 | struct vnode *a_vp; |
| 838 | int a_mode; |
| 839 | struct ucred *a_cred; |
| 840 | struct proc *a_p; |
| 841 | } */ *ap; |
| 842 | { |
| 843 | #if HPFS_DEBUG |
| 844 | register struct vnode *vp = ap->a_vp; |
| 845 | register struct hpfsnode *hp = VTOHP(vp); |
| 846 | |
| 847 | printf("hpfs_open(0x%x):\n",hp->h_no); |
| 848 | #endif |
| 849 | |
| 850 | /* |
| 851 | * Files marked append-only must be opened for appending. |
| 852 | */ |
| 853 | |
| 854 | return (0); |
| 855 | } |
| 856 | |
| 857 | /* |
| 858 | * Close called. |
| 859 | * |
| 860 | * Update the times on the inode. |
| 861 | */ |
| 862 | /* ARGSUSED */ |
| 863 | static int |
| 864 | hpfs_close(ap) |
| 865 | struct vop_close_args /* { |
| 866 | struct vnode *a_vp; |
| 867 | int a_fflag; |
| 868 | struct ucred *a_cred; |
| 869 | struct proc *a_p; |
| 870 | } */ *ap; |
| 871 | { |
| 872 | #if HPFS_DEBUG |
| 873 | register struct vnode *vp = ap->a_vp; |
| 874 | register struct hpfsnode *hp = VTOHP(vp); |
| 875 | |
| 876 | printf("hpfs_close: %d\n",hp->h_no); |
| 877 | #endif |
| 878 | |
| 879 | return (0); |
| 880 | } |
| 881 | |
| 882 | static int |
| 883 | hpfs_de_uiomove ( |
| 884 | struct hpfsmount *hpmp, |
| 885 | struct hpfsdirent *dep, |
| 886 | struct uio *uio) |
| 887 | { |
| 888 | struct dirent cde; |
| 889 | int i, error; |
| 890 | |
| 891 | dprintf(("[no: 0x%x, size: %d, name: %2d:%.*s, flag: 0x%x] ", |
| 892 | dep->de_fnode, dep->de_size, dep->de_namelen, |
| 893 | dep->de_namelen, dep->de_name, dep->de_flag)); |
| 894 | |
| 895 | /*strncpy(cde.d_name, dep->de_name, dep->de_namelen);*/ |
| 896 | for (i=0; i<dep->de_namelen; i++) |
| 897 | cde.d_name[i] = hpfs_d2u(hpmp, dep->de_name[i]); |
| 898 | |
| 899 | cde.d_name[dep->de_namelen] = '\0'; |
| 900 | cde.d_namlen = dep->de_namelen; |
| 901 | cde.d_fileno = dep->de_fnode; |
| 902 | cde.d_type = (dep->de_flag & DE_DIR) ? DT_DIR : DT_REG; |
| 903 | cde.d_reclen = sizeof(struct dirent); |
| 904 | |
| 905 | error = uiomove((char *)&cde, sizeof(struct dirent), uio); |
| 906 | if (error) |
| 907 | return (error); |
| 908 | |
| 909 | dprintf(("[0x%x] ", uio->uio_resid)); |
| 910 | return (error); |
| 911 | } |
| 912 | |
| 913 | |
| 914 | static struct dirent hpfs_de_dot = |
| 915 | { 0, sizeof(struct dirent), DT_DIR, 1, "." }; |
| 916 | static struct dirent hpfs_de_dotdot = |
| 917 | { 0, sizeof(struct dirent), DT_DIR, 2, ".." }; |
| 918 | int |
| 919 | hpfs_readdir(ap) |
| 920 | struct vop_readdir_args /* { |
| 921 | struct vnode *a_vp; |
| 922 | struct uio *a_uio; |
| 923 | struct ucred *a_cred; |
| 924 | int *a_ncookies; |
| 925 | u_int **cookies; |
| 926 | } */ *ap; |
| 927 | { |
| 928 | register struct vnode *vp = ap->a_vp; |
| 929 | register struct hpfsnode *hp = VTOHP(vp); |
| 930 | struct hpfsmount *hpmp = hp->h_hpmp; |
| 931 | struct uio *uio = ap->a_uio; |
| 932 | int ncookies = 0, i, num, cnum; |
| 933 | int error = 0; |
| 934 | off_t off; |
| 935 | struct buf *bp; |
| 936 | struct dirblk *dp; |
| 937 | struct hpfsdirent *dep; |
| 938 | lsn_t olsn; |
| 939 | lsn_t lsn; |
| 940 | int level; |
| 941 | |
| 942 | dprintf(("hpfs_readdir(0x%x, 0x%x, 0x%x): ",hp->h_no,(u_int32_t)uio->uio_offset,uio->uio_resid)); |
| 943 | |
| 944 | off = uio->uio_offset; |
| 945 | |
| 946 | if( uio->uio_offset < sizeof(struct dirent) ) { |
| 947 | dprintf((". faked, ")); |
| 948 | hpfs_de_dot.d_fileno = hp->h_no; |
| 949 | error = uiomove((char *)&hpfs_de_dot,sizeof(struct dirent),uio); |
| 950 | if(error) { |
| 951 | return (error); |
| 952 | } |
| 953 | |
| 954 | ncookies ++; |
| 955 | } |
| 956 | |
| 957 | if( uio->uio_offset < 2 * sizeof(struct dirent) ) { |
| 958 | dprintf((".. faked, ")); |
| 959 | hpfs_de_dotdot.d_fileno = hp->h_fn.fn_parent; |
| 960 | |
| 961 | error = uiomove((char *)&hpfs_de_dotdot, sizeof(struct dirent), |
| 962 | uio); |
| 963 | if(error) { |
| 964 | return (error); |
| 965 | } |
| 966 | |
| 967 | ncookies ++; |
| 968 | } |
| 969 | |
| 970 | num = uio->uio_offset / sizeof(struct dirent) - 2; |
| 971 | cnum = 0; |
| 972 | |
| 973 | lsn = ((alleaf_t *)hp->h_fn.fn_abd)->al_lsn; |
| 974 | |
| 975 | olsn = 0; |
| 976 | level = 1; |
| 977 | |
| 978 | dive: |
| 979 | dprintf(("[dive 0x%x] ", lsn)); |
| 980 | error = bread(hp->h_devvp, lsn, D_BSIZE, NOCRED, &bp); |
| 981 | if (error) { |
| 982 | brelse(bp); |
| 983 | return (error); |
| 984 | } |
| 985 | |
| 986 | dp = (struct dirblk *) bp->b_data; |
| 987 | if (dp->d_magic != D_MAGIC) { |
| 988 | printf("hpfs_readdir: MAGIC DOESN'T MATCH\n"); |
| 989 | brelse(bp); |
| 990 | return (EINVAL); |
| 991 | } |
| 992 | |
| 993 | dep = D_DIRENT(dp); |
| 994 | |
| 995 | if (olsn) { |
| 996 | dprintf(("[restore 0x%x] ", olsn)); |
| 997 | |
| 998 | while(!(dep->de_flag & DE_END) ) { |
| 999 | if((dep->de_flag & DE_DOWN) && |
| 1000 | (olsn == DE_DOWNLSN(dep))) |
| 1001 | break; |
| 1002 | dep = (hpfsdirent_t *)((caddr_t)dep + dep->de_reclen); |
| 1003 | } |
| 1004 | |
| 1005 | if((dep->de_flag & DE_DOWN) && (olsn == DE_DOWNLSN(dep))) { |
| 1006 | if (dep->de_flag & DE_END) |
| 1007 | goto blockdone; |
| 1008 | |
| 1009 | if (!(dep->de_flag & DE_SPECIAL)) { |
| 1010 | if (num <= cnum) { |
| 1011 | if (uio->uio_resid < sizeof(struct dirent)) { |
| 1012 | brelse(bp); |
| 1013 | dprintf(("[resid] ")); |
| 1014 | goto readdone; |
| 1015 | } |
| 1016 | |
| 1017 | error = hpfs_de_uiomove(hpmp, dep, uio); |
| 1018 | if (error) { |
| 1019 | brelse (bp); |
| 1020 | return (error); |
| 1021 | } |
| 1022 | ncookies++; |
| 1023 | |
| 1024 | if (uio->uio_resid < sizeof(struct dirent)) { |
| 1025 | brelse(bp); |
| 1026 | dprintf(("[resid] ")); |
| 1027 | goto readdone; |
| 1028 | } |
| 1029 | } |
| 1030 | cnum++; |
| 1031 | } |
| 1032 | |
| 1033 | dep = (hpfsdirent_t *)((caddr_t)dep + dep->de_reclen); |
| 1034 | } else { |
| 1035 | printf("hpfs_readdir: ERROR! oLSN not found\n"); |
| 1036 | brelse(bp); |
| 1037 | return (EINVAL); |
| 1038 | } |
| 1039 | } |
| 1040 | |
| 1041 | olsn = 0; |
| 1042 | |
| 1043 | while(!(dep->de_flag & DE_END)) { |
| 1044 | if(dep->de_flag & DE_DOWN) { |
| 1045 | lsn = DE_DOWNLSN(dep); |
| 1046 | brelse(bp); |
| 1047 | level++; |
| 1048 | goto dive; |
| 1049 | } |
| 1050 | |
| 1051 | if (!(dep->de_flag & DE_SPECIAL)) { |
| 1052 | if (num <= cnum) { |
| 1053 | if (uio->uio_resid < sizeof(struct dirent)) { |
| 1054 | brelse(bp); |
| 1055 | dprintf(("[resid] ")); |
| 1056 | goto readdone; |
| 1057 | } |
| 1058 | |
| 1059 | error = hpfs_de_uiomove(hpmp, dep, uio); |
| 1060 | if (error) { |
| 1061 | brelse (bp); |
| 1062 | return (error); |
| 1063 | } |
| 1064 | ncookies++; |
| 1065 | |
| 1066 | if (uio->uio_resid < sizeof(struct dirent)) { |
| 1067 | brelse(bp); |
| 1068 | dprintf(("[resid] ")); |
| 1069 | goto readdone; |
| 1070 | } |
| 1071 | } |
| 1072 | cnum++; |
| 1073 | } |
| 1074 | |
| 1075 | dep = (hpfsdirent_t *)((caddr_t)dep + dep->de_reclen); |
| 1076 | } |
| 1077 | |
| 1078 | if(dep->de_flag & DE_DOWN) { |
| 1079 | dprintf(("[enddive] ")); |
| 1080 | lsn = DE_DOWNLSN(dep); |
| 1081 | brelse(bp); |
| 1082 | level++; |
| 1083 | goto dive; |
| 1084 | } |
| 1085 | |
| 1086 | blockdone: |
| 1087 | dprintf(("[EOB] ")); |
| 1088 | olsn = lsn; |
| 1089 | lsn = dp->d_parent; |
| 1090 | brelse(bp); |
| 1091 | level--; |
| 1092 | |
| 1093 | dprintf(("[level %d] ", level)); |
| 1094 | |
| 1095 | if (level > 0) |
| 1096 | goto dive; /* undive really */ |
| 1097 | |
| 1098 | if (ap->a_eofflag) { |
| 1099 | dprintf(("[EOF] ")); |
| 1100 | *ap->a_eofflag = 1; |
| 1101 | } |
| 1102 | |
| 1103 | readdone: |
| 1104 | dprintf(("[readdone]\n")); |
| 1105 | if (!error && ap->a_ncookies != NULL) { |
| 1106 | struct dirent* dpStart; |
| 1107 | struct dirent* dp; |
| 1108 | #if defined(__FreeBSD__) |
| 1109 | u_long *cookies; |
| 1110 | u_long *cookiep; |
| 1111 | #else /* defined(__NetBSD__) */ |
| 1112 | off_t *cookies; |
| 1113 | off_t *cookiep; |
| 1114 | #endif |
| 1115 | |
| 1116 | dprintf(("%d cookies, ",ncookies)); |
| 1117 | if (uio->uio_segflg != UIO_SYSSPACE || uio->uio_iovcnt != 1) |
| 1118 | panic("hpfs_readdir: unexpected uio from NFS server"); |
| 1119 | dpStart = (struct dirent *) |
| 1120 | ((caddr_t)uio->uio_iov->iov_base - |
| 1121 | (uio->uio_offset - off)); |
| 1122 | #if defined(__FreeBSD__) |
| 1123 | MALLOC(cookies, u_long *, ncookies * sizeof(u_long), |
| 1124 | M_TEMP, M_WAITOK); |
| 1125 | #else /* defined(__NetBSD__) */ |
| 1126 | MALLOC(cookies, off_t *, ncookies * sizeof(off_t), |
| 1127 | M_TEMP, M_WAITOK); |
| 1128 | #endif |
| 1129 | for (dp = dpStart, cookiep = cookies, i=0; |
| 1130 | i < ncookies; |
| 1131 | dp = (struct dirent *)((caddr_t) dp + dp->d_reclen), i++) { |
| 1132 | off += dp->d_reclen; |
| 1133 | *cookiep++ = (u_int) off; |
| 1134 | } |
| 1135 | *ap->a_ncookies = ncookies; |
| 1136 | *ap->a_cookies = cookies; |
| 1137 | } |
| 1138 | |
| 1139 | return (0); |
| 1140 | } |
| 1141 | |
| 1142 | int |
| 1143 | hpfs_lookup(ap) |
| 1144 | struct vop_lookup_args /* { |
| 1145 | struct vnode *a_dvp; |
| 1146 | struct vnode **a_vpp; |
| 1147 | struct componentname *a_cnp; |
| 1148 | } */ *ap; |
| 1149 | { |
| 1150 | register struct vnode *dvp = ap->a_dvp; |
| 1151 | register struct hpfsnode *dhp = VTOHP(dvp); |
| 1152 | struct hpfsmount *hpmp = dhp->h_hpmp; |
| 1153 | struct componentname *cnp = ap->a_cnp; |
| 1154 | struct ucred *cred = cnp->cn_cred; |
| 1155 | int error; |
| 1156 | int nameiop = cnp->cn_nameiop; |
| 1157 | int flags = cnp->cn_flags; |
| 1158 | int lockparent = flags & LOCKPARENT; |
| 1159 | #if HPFS_DEBUG |
| 1160 | int wantparent = flags & (LOCKPARENT|WANTPARENT); |
| 1161 | #endif |
| 1162 | dprintf(("hpfs_lookup(0x%x, %s, %ld, %d, %d): \n", |
| 1163 | dhp->h_no, cnp->cn_nameptr, cnp->cn_namelen, |
| 1164 | lockparent, wantparent)); |
| 1165 | |
| 1166 | if (nameiop != CREATE && nameiop != DELETE && nameiop != LOOKUP) { |
| 1167 | printf("hpfs_lookup: LOOKUP, DELETE and CREATE are only supported\n"); |
| 1168 | return (EOPNOTSUPP); |
| 1169 | } |
| 1170 | |
| 1171 | error = VOP_ACCESS(dvp, VEXEC, cred, cnp->cn_proc); |
| 1172 | if(error) |
| 1173 | return (error); |
| 1174 | |
| 1175 | if( (cnp->cn_namelen == 1) && |
| 1176 | !strncmp(cnp->cn_nameptr,".",1) ) { |
| 1177 | dprintf(("hpfs_lookup(0x%x,...): . faked\n",dhp->h_no)); |
| 1178 | |
| 1179 | VREF(dvp); |
| 1180 | *ap->a_vpp = dvp; |
| 1181 | |
| 1182 | return (0); |
| 1183 | } else if( (cnp->cn_namelen == 2) && |
| 1184 | !strncmp(cnp->cn_nameptr,"..",2) && (flags & ISDOTDOT) ) { |
| 1185 | dprintf(("hpfs_lookup(0x%x,...): .. faked (0x%x)\n", |
| 1186 | dhp->h_no, dhp->h_fn.fn_parent)); |
| 1187 | |
| 1188 | VOP__UNLOCK(dvp,0,cnp->cn_proc); |
| 1189 | |
| 1190 | error = VFS_VGET(hpmp->hpm_mp, |
| 1191 | dhp->h_fn.fn_parent, ap->a_vpp); |
| 1192 | if(error) { |
| 1193 | VOP__LOCK(dvp, 0, cnp->cn_proc); |
| 1194 | return(error); |
| 1195 | } |
| 1196 | |
| 1197 | if( lockparent && (flags & ISLASTCN) && |
| 1198 | (error = VOP__LOCK(dvp, 0, cnp->cn_proc)) ) { |
| 1199 | vput( *(ap->a_vpp) ); |
| 1200 | return (error); |
| 1201 | } |
| 1202 | return (error); |
| 1203 | } else { |
| 1204 | struct buf *bp; |
| 1205 | struct hpfsdirent *dep; |
| 1206 | struct hpfsnode *hp; |
| 1207 | |
| 1208 | error = hpfs_genlookupbyname(dhp, |
| 1209 | cnp->cn_nameptr, cnp->cn_namelen, &bp, &dep); |
| 1210 | if (error) { |
| 1211 | if ((error == ENOENT) && (flags & ISLASTCN) && |
| 1212 | (nameiop == CREATE || nameiop == RENAME)) { |
| 1213 | if(!lockparent) |
| 1214 | VOP__UNLOCK(dvp, 0, cnp->cn_proc); |
| 1215 | cnp->cn_flags |= SAVENAME; |
| 1216 | return (EJUSTRETURN); |
| 1217 | } |
| 1218 | |
| 1219 | return (error); |
| 1220 | } |
| 1221 | |
| 1222 | dprintf(("hpfs_lookup: fnode: 0x%x, CPID: 0x%x\n", |
| 1223 | dep->de_fnode, dep->de_cpid)); |
| 1224 | |
| 1225 | if (nameiop == DELETE && (flags & ISLASTCN)) { |
| 1226 | error = VOP_ACCESS(dvp, VWRITE, cred, cnp->cn_proc); |
| 1227 | if (error) { |
| 1228 | brelse(bp); |
| 1229 | return (error); |
| 1230 | } |
| 1231 | } |
| 1232 | |
| 1233 | if (dhp->h_no == dep->de_fnode) { |
| 1234 | brelse(bp); |
| 1235 | VREF(dvp); |
| 1236 | *ap->a_vpp = dvp; |
| 1237 | return (0); |
| 1238 | } |
| 1239 | |
| 1240 | error = VFS_VGET(hpmp->hpm_mp, dep->de_fnode, ap->a_vpp); |
| 1241 | if (error) { |
| 1242 | printf("hpfs_lookup: VFS_VGET FAILED %d\n", error); |
| 1243 | brelse(bp); |
| 1244 | return(error); |
| 1245 | } |
| 1246 | |
| 1247 | hp = VTOHP(*ap->a_vpp); |
| 1248 | |
| 1249 | hp->h_mtime = dep->de_mtime; |
| 1250 | hp->h_ctime = dep->de_ctime; |
| 1251 | hp->h_atime = dep->de_atime; |
| 1252 | bcopy(dep->de_name, hp->h_name, dep->de_namelen); |
| 1253 | hp->h_name[dep->de_namelen] = '\0'; |
| 1254 | hp->h_namelen = dep->de_namelen; |
| 1255 | hp->h_flag |= H_PARVALID; |
| 1256 | |
| 1257 | brelse(bp); |
| 1258 | |
| 1259 | if(!lockparent || !(flags & ISLASTCN)) |
| 1260 | VOP__UNLOCK(dvp, 0, cnp->cn_proc); |
| 1261 | if ((flags & MAKEENTRY) && |
| 1262 | (!(flags & ISLASTCN) || |
| 1263 | (nameiop != DELETE && nameiop != CREATE))) |
| 1264 | cache_enter(dvp, *ap->a_vpp, cnp); |
| 1265 | } |
| 1266 | return (error); |
| 1267 | } |
| 1268 | |
| 1269 | int |
| 1270 | hpfs_remove(ap) |
| 1271 | struct vop_remove_args /* { |
| 1272 | struct vnode *a_dvp; |
| 1273 | struct vnode *a_vp; |
| 1274 | struct componentname *a_cnp; |
| 1275 | } */ *ap; |
| 1276 | { |
| 1277 | int error; |
| 1278 | |
| 1279 | dprintf(("hpfs_remove(0x%x, %s, %ld): \n", VTOHP(ap->a_vp)->h_no, |
| 1280 | ap->a_cnp->cn_nameptr, ap->a_cnp->cn_namelen)); |
| 1281 | |
| 1282 | if (ap->a_vp->v_type == VDIR) |
| 1283 | return (EPERM); |
| 1284 | |
| 1285 | error = hpfs_removefnode (ap->a_dvp, ap->a_vp, ap->a_cnp); |
| 1286 | return (error); |
| 1287 | } |
| 1288 | |
| 1289 | int |
| 1290 | hpfs_create(ap) |
| 1291 | struct vop_create_args /* { |
| 1292 | struct vnode *a_dvp; |
| 1293 | struct vnode **a_vpp; |
| 1294 | struct componentname *a_cnp; |
| 1295 | struct vattr *a_vap; |
| 1296 | } */ *ap; |
| 1297 | { |
| 1298 | int error; |
| 1299 | |
| 1300 | dprintf(("hpfs_create(0x%x, %s, %ld): \n", VTOHP(ap->a_dvp)->h_no, |
| 1301 | ap->a_cnp->cn_nameptr, ap->a_cnp->cn_namelen)); |
| 1302 | |
| 1303 | if (!(ap->a_cnp->cn_flags & HASBUF)) |
| 1304 | panic ("hpfs_create: no name\n"); |
| 1305 | |
| 1306 | error = hpfs_makefnode (ap->a_dvp, ap->a_vpp, ap->a_cnp, ap->a_vap); |
| 1307 | |
| 1308 | return (error); |
| 1309 | } |
| 1310 | |
| 1311 | /* |
| 1312 | * Return POSIX pathconf information applicable to NTFS filesystem |
| 1313 | */ |
| 1314 | int |
| 1315 | hpfs_pathconf(ap) |
| 1316 | struct vop_pathconf_args /* { |
| 1317 | struct vnode *a_vp; |
| 1318 | int a_name; |
| 1319 | register_t *a_retval; |
| 1320 | } */ *ap; |
| 1321 | { |
| 1322 | switch (ap->a_name) { |
| 1323 | case _PC_LINK_MAX: |
| 1324 | *ap->a_retval = 1; |
| 1325 | return (0); |
| 1326 | case _PC_NAME_MAX: |
| 1327 | *ap->a_retval = HPFS_MAXFILENAME; |
| 1328 | return (0); |
| 1329 | case _PC_PATH_MAX: |
| 1330 | *ap->a_retval = PATH_MAX; |
| 1331 | return (0); |
| 1332 | case _PC_CHOWN_RESTRICTED: |
| 1333 | *ap->a_retval = 1; |
| 1334 | return (0); |
| 1335 | case _PC_NO_TRUNC: |
| 1336 | *ap->a_retval = 0; |
| 1337 | return (0); |
| 1338 | #if defined(__NetBSD__) |
| 1339 | case _PC_SYNC_IO: |
| 1340 | *ap->a_retval = 1; |
| 1341 | return (0); |
| 1342 | case _PC_FILESIZEBITS: |
| 1343 | *ap->a_retval = 32; |
| 1344 | return (0); |
| 1345 | #endif |
| 1346 | default: |
| 1347 | return (EINVAL); |
| 1348 | } |
| 1349 | /* NOTREACHED */ |
| 1350 | } |
| 1351 | |
| 1352 | |
| 1353 | /* |
| 1354 | * Global vfs data structures |
| 1355 | */ |
| 1356 | vop_t **hpfs_vnodeop_p; |
| 1357 | #if defined(__FreeBSD__) |
| 1358 | struct vnodeopv_entry_desc hpfs_vnodeop_entries[] = { |
| 1359 | { &vop_default_desc, (vop_t *)vop_defaultop }, |
| 1360 | |
| 1361 | { &vop_getattr_desc, (vop_t *)hpfs_getattr }, |
| 1362 | { &vop_setattr_desc, (vop_t *)hpfs_setattr }, |
| 1363 | { &vop_inactive_desc, (vop_t *)hpfs_inactive }, |
| 1364 | { &vop_reclaim_desc, (vop_t *)hpfs_reclaim }, |
| 1365 | { &vop_print_desc, (vop_t *)hpfs_print }, |
| 1366 | { &vop_create_desc, (vop_t *)hpfs_create }, |
| 1367 | { &vop_remove_desc, (vop_t *)hpfs_remove }, |
| 1368 | { &vop_islocked_desc, (vop_t *)vop_stdislocked }, |
| 1369 | { &vop_unlock_desc, (vop_t *)vop_stdunlock }, |
| 1370 | { &vop_lock_desc, (vop_t *)vop_stdlock }, |
| 1371 | { &vop_cachedlookup_desc, (vop_t *)hpfs_lookup }, |
| 1372 | { &vop_lookup_desc, (vop_t *)vfs_cache_lookup }, |
| 1373 | { &vop_access_desc, (vop_t *)hpfs_access }, |
| 1374 | { &vop_close_desc, (vop_t *)hpfs_close }, |
| 1375 | { &vop_open_desc, (vop_t *)hpfs_open }, |
| 1376 | { &vop_readdir_desc, (vop_t *)hpfs_readdir }, |
| 1377 | { &vop_fsync_desc, (vop_t *)hpfs_fsync }, |
| 1378 | { &vop_bmap_desc, (vop_t *)hpfs_bmap }, |
| 1379 | { &vop_getpages_desc, (vop_t *) hpfs_getpages }, |
| 1380 | { &vop_putpages_desc, (vop_t *) hpfs_putpages }, |
| 1381 | { &vop_strategy_desc, (vop_t *)hpfs_strategy }, |
| 1382 | { &vop_bwrite_desc, (vop_t *)vop_stdbwrite }, |
| 1383 | { &vop_read_desc, (vop_t *)hpfs_read }, |
| 1384 | { &vop_write_desc, (vop_t *)hpfs_write }, |
| 1385 | { &vop_ioctl_desc, (vop_t *)hpfs_ioctl }, |
| 1386 | { &vop_pathconf_desc, (vop_t *)hpfs_pathconf }, |
| 1387 | { NULL, NULL } |
| 1388 | }; |
| 1389 | |
| 1390 | static |
| 1391 | struct vnodeopv_desc hpfs_vnodeop_opv_desc = |
| 1392 | { &hpfs_vnodeop_p, hpfs_vnodeop_entries }; |
| 1393 | |
| 1394 | VNODEOP_SET(hpfs_vnodeop_opv_desc); |
| 1395 | #else /* defined(__NetBSD__) */ |
| 1396 | struct vnodeopv_entry_desc ntfs_vnodeop_entries[] = { |
| 1397 | { &vop_default_desc, (vop_t *) genfs_badop }, /* XXX */ |
| 1398 | { &vop_lookup_desc, (vop_t *) hpfs_lookup }, /* lookup */ |
| 1399 | { &vop_create_desc, genfs_eopnotsupp }, /* create */ |
| 1400 | { &vop_mknod_desc, genfs_eopnotsupp }, /* mknod */ |
| 1401 | { &vop_open_desc, (vop_t *) hpfs_open }, /* open */ |
| 1402 | { &vop_close_desc,(vop_t *) hpfs_close }, /* close */ |
| 1403 | { &vop_access_desc, (vop_t *) hpfs_access }, /* access */ |
| 1404 | { &vop_getattr_desc, (vop_t *) hpfs_getattr }, /* getattr */ |
| 1405 | { &vop_setattr_desc, genfs_eopnotsupp }, /* setattr */ |
| 1406 | { &vop_read_desc, (vop_t *) hpfs_read }, /* read */ |
| 1407 | { &vop_write_desc, (vop_t *) hpfs_write }, /* write */ |
| 1408 | { &vop_lease_desc, genfs_lease_check }, /* lease */ |
| 1409 | { &vop_fcntl_desc, genfs_fcntl }, /* fcntl */ |
| 1410 | { &vop_ioctl_desc, genfs_enoioctl }, /* ioctl */ |
| 1411 | { &vop_poll_desc, genfs_poll }, /* poll */ |
| 1412 | { &vop_revoke_desc, genfs_revoke }, /* revoke */ |
| 1413 | { &vop_mmap_desc, genfs_eopnotsupp }, /* mmap */ |
| 1414 | { &vop_fsync_desc, genfs_fsync }, /* fsync */ |
| 1415 | { &vop_seek_desc, genfs_seek }, /* seek */ |
| 1416 | { &vop_remove_desc, genfs_eopnotsupp }, /* remove */ |
| 1417 | { &vop_link_desc, genfs_eopnotsupp }, /* link */ |
| 1418 | { &vop_rename_desc, genfs_eopnotsupp }, /* rename */ |
| 1419 | { &vop_mkdir_desc, genfs_eopnotsupp }, /* mkdir */ |
| 1420 | { &vop_rmdir_desc, genfs_eopnotsupp }, /* rmdir */ |
| 1421 | { &vop_symlink_desc, genfs_eopnotsupp }, /* symlink */ |
| 1422 | { &vop_readdir_desc, (vop_t *) hpfs_readdir }, /* readdir */ |
| 1423 | { &vop_readlink_desc, genfs_eopnotsupp }, /* readlink */ |
| 1424 | { &vop_abortop_desc, genfs_abortop }, /* abortop */ |
| 1425 | { &vop_inactive_desc, (vop_t *) hpfs_inactive }, /* inactive */ |
| 1426 | { &vop_reclaim_desc, (vop_t *) hpfs_reclaim }, /* reclaim */ |
| 1427 | { &vop_lock_desc, genfs_lock }, /* lock */ |
| 1428 | { &vop_unlock_desc, genfs_unlock }, /* unlock */ |
| 1429 | { &vop_bmap_desc, (vop_t *) hpfs_bmap }, /* bmap */ |
| 1430 | { &vop_strategy_desc, (vop_t *) hpfs_strategy }, /* strategy */ |
| 1431 | { &vop_print_desc, (vop_t *) hpfs_print }, /* print */ |
| 1432 | { &vop_islocked_desc, genfs_islocked }, /* islocked */ |
| 1433 | { &vop_pathconf_desc, hpfs_pathconf }, /* pathconf */ |
| 1434 | { &vop_advlock_desc, genfs_nullop }, /* advlock */ |
| 1435 | { &vop_blkatoff_desc, genfs_eopnotsupp }, /* blkatoff */ |
| 1436 | { &vop_valloc_desc, genfs_eopnotsupp }, /* valloc */ |
| 1437 | { &vop_reallocblks_desc, genfs_eopnotsupp }, /* reallocblks */ |
| 1438 | { &vop_vfree_desc, genfs_eopnotsupp }, /* vfree */ |
| 1439 | { &vop_truncate_desc, genfs_eopnotsupp }, /* truncate */ |
| 1440 | { &vop_update_desc, genfs_eopnotsupp }, /* update */ |
| 1441 | { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ |
| 1442 | { (struct vnodeop_desc *)NULL, (int (*) __P((void *)))NULL } |
| 1443 | }; |
| 1444 | struct vnodeopv_desc ntfs_vnodeop_opv_desc = |
| 1445 | { &ntfs_vnodeop_p, ntfs_vnodeop_entries }; |
| 1446 | |
| 1447 | #endif |