1 /* 2 * Copyright (c) 2000-2001 Boris Popov 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 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Boris Popov. 16 * 4. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * $FreeBSD$ 33 */ 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/namei.h> 37 #include <sys/kernel.h> 38 #include <sys/proc.h> 39 #include <sys/bio.h> 40 #include <sys/buf.h> 41 #include <sys/fcntl.h> 42 #include <sys/mount.h> 43 #include <sys/unistd.h> 44 #include <sys/vnode.h> 45 #include <sys/limits.h> 46 #include <sys/lockf.h> 47 48 #include <vm/vm.h> 49 #include <vm/vm_extern.h> 50 51 52 #include <netsmb/smb.h> 53 #include <netsmb/smb_conn.h> 54 #include <netsmb/smb_subr.h> 55 56 #include <fs/smbfs/smbfs.h> 57 #include <fs/smbfs/smbfs_node.h> 58 #include <fs/smbfs/smbfs_subr.h> 59 60 /* 61 * Prototypes for SMBFS vnode operations 62 */ 63 static int smbfs_create(struct vop_create_args *); 64 static int smbfs_mknod(struct vop_mknod_args *); 65 static int smbfs_open(struct vop_open_args *); 66 static int smbfs_close(struct vop_close_args *); 67 static int smbfs_access(struct vop_access_args *); 68 static int smbfs_getattr(struct vop_getattr_args *); 69 static int smbfs_setattr(struct vop_setattr_args *); 70 static int smbfs_read(struct vop_read_args *); 71 static int smbfs_write(struct vop_write_args *); 72 static int smbfs_fsync(struct vop_fsync_args *); 73 static int smbfs_remove(struct vop_remove_args *); 74 static int smbfs_link(struct vop_link_args *); 75 static int smbfs_lookup(struct vop_lookup_args *); 76 static int smbfs_rename(struct vop_rename_args *); 77 static int smbfs_mkdir(struct vop_mkdir_args *); 78 static int smbfs_rmdir(struct vop_rmdir_args *); 79 static int smbfs_symlink(struct vop_symlink_args *); 80 static int smbfs_readdir(struct vop_readdir_args *); 81 static int smbfs_strategy(struct vop_strategy_args *); 82 static int smbfs_print(struct vop_print_args *); 83 static int smbfs_pathconf(struct vop_pathconf_args *ap); 84 static int smbfs_advlock(struct vop_advlock_args *); 85 static int smbfs_getextattr(struct vop_getextattr_args *ap); 86 87 vop_t **smbfs_vnodeop_p; 88 static struct vnodeopv_entry_desc smbfs_vnodeop_entries[] = { 89 { &vop_default_desc, (vop_t *) vop_defaultop }, 90 { &vop_access_desc, (vop_t *) smbfs_access }, 91 { &vop_advlock_desc, (vop_t *) smbfs_advlock }, 92 { &vop_close_desc, (vop_t *) smbfs_close }, 93 { &vop_create_desc, (vop_t *) smbfs_create }, 94 { &vop_fsync_desc, (vop_t *) smbfs_fsync }, 95 { &vop_getattr_desc, (vop_t *) smbfs_getattr }, 96 { &vop_getpages_desc, (vop_t *) smbfs_getpages }, 97 { &vop_inactive_desc, (vop_t *) smbfs_inactive }, 98 { &vop_ioctl_desc, (vop_t *) smbfs_ioctl }, 99 { &vop_link_desc, (vop_t *) smbfs_link }, 100 { &vop_lookup_desc, (vop_t *) smbfs_lookup }, 101 { &vop_mkdir_desc, (vop_t *) smbfs_mkdir }, 102 { &vop_mknod_desc, (vop_t *) smbfs_mknod }, 103 { &vop_open_desc, (vop_t *) smbfs_open }, 104 { &vop_pathconf_desc, (vop_t *) smbfs_pathconf }, 105 { &vop_print_desc, (vop_t *) smbfs_print }, 106 { &vop_putpages_desc, (vop_t *) smbfs_putpages }, 107 { &vop_read_desc, (vop_t *) smbfs_read }, 108 { &vop_readdir_desc, (vop_t *) smbfs_readdir }, 109 { &vop_reclaim_desc, (vop_t *) smbfs_reclaim }, 110 { &vop_remove_desc, (vop_t *) smbfs_remove }, 111 { &vop_rename_desc, (vop_t *) smbfs_rename }, 112 { &vop_rmdir_desc, (vop_t *) smbfs_rmdir }, 113 { &vop_setattr_desc, (vop_t *) smbfs_setattr }, 114 { &vop_strategy_desc, (vop_t *) smbfs_strategy }, 115 { &vop_symlink_desc, (vop_t *) smbfs_symlink }, 116 { &vop_write_desc, (vop_t *) smbfs_write }, 117 { &vop_getextattr_desc, (vop_t *) smbfs_getextattr }, 118 /* { &vop_setextattr_desc, (vop_t *) smbfs_setextattr },*/ 119 { NULL, NULL } 120 }; 121 122 static struct vnodeopv_desc smbfs_vnodeop_opv_desc = 123 { &smbfs_vnodeop_p, smbfs_vnodeop_entries }; 124 125 VNODEOP_SET(smbfs_vnodeop_opv_desc); 126 127 static int 128 smbfs_access(ap) 129 struct vop_access_args /* { 130 struct vnode *a_vp; 131 int a_mode; 132 struct ucred *a_cred; 133 struct thread *a_td; 134 } */ *ap; 135 { 136 struct vnode *vp = ap->a_vp; 137 mode_t mode = ap->a_mode; 138 mode_t mpmode; 139 struct smbmount *smp = VTOSMBFS(vp); 140 141 SMBVDEBUG("\n"); 142 if ((mode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY)) { 143 switch (vp->v_type) { 144 case VREG: case VDIR: case VLNK: 145 return EROFS; 146 default: 147 break; 148 } 149 } 150 mpmode = vp->v_type == VREG ? smp->sm_args.file_mode : 151 smp->sm_args.dir_mode; 152 return (vaccess(vp->v_type, mpmode, smp->sm_args.uid, 153 smp->sm_args.gid, ap->a_mode, ap->a_cred, NULL)); 154 } 155 156 /* ARGSUSED */ 157 static int 158 smbfs_open(ap) 159 struct vop_open_args /* { 160 struct vnode *a_vp; 161 int a_mode; 162 struct ucred *a_cred; 163 struct thread *a_td; 164 } */ *ap; 165 { 166 struct vnode *vp = ap->a_vp; 167 struct smbnode *np = VTOSMB(vp); 168 struct smb_cred scred; 169 struct vattr vattr; 170 int mode = ap->a_mode; 171 int error, accmode; 172 173 SMBVDEBUG("%s,%d\n", np->n_name, (np->n_flag & NOPEN) != 0); 174 if (vp->v_type != VREG && vp->v_type != VDIR) { 175 SMBFSERR("open eacces vtype=%d\n", vp->v_type); 176 return EACCES; 177 } 178 if (vp->v_type == VDIR) { 179 np->n_flag |= NOPEN; 180 return 0; 181 } 182 if (np->n_flag & NMODIFIED) { 183 if ((error = smbfs_vinvalbuf(vp, V_SAVE, ap->a_cred, ap->a_td, 1)) == EINTR) 184 return error; 185 smbfs_attr_cacheremove(vp); 186 error = VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_td); 187 if (error) 188 return error; 189 np->n_mtime.tv_sec = vattr.va_mtime.tv_sec; 190 } else { 191 error = VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_td); 192 if (error) 193 return error; 194 if (np->n_mtime.tv_sec != vattr.va_mtime.tv_sec) { 195 error = smbfs_vinvalbuf(vp, V_SAVE, ap->a_cred, ap->a_td, 1); 196 if (error == EINTR) 197 return error; 198 np->n_mtime.tv_sec = vattr.va_mtime.tv_sec; 199 } 200 } 201 if ((np->n_flag & NOPEN) != 0) 202 return 0; 203 /* 204 * Use DENYNONE to give unixy semantics of permitting 205 * everything not forbidden by permissions. Ie denial 206 * is up to server with clients/openers needing to use 207 * advisory locks for further control. 208 */ 209 accmode = SMB_SM_DENYNONE|SMB_AM_OPENREAD; 210 if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0) 211 accmode = SMB_SM_DENYNONE|SMB_AM_OPENRW; 212 smb_makescred(&scred, ap->a_td, ap->a_cred); 213 error = smbfs_smb_open(np, accmode, &scred); 214 if (error) { 215 if (mode & FWRITE) 216 return EACCES; 217 else if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0) { 218 accmode = SMB_SM_DENYNONE|SMB_AM_OPENREAD; 219 error = smbfs_smb_open(np, accmode, &scred); 220 } 221 } 222 if (error == 0) 223 np->n_flag |= NOPEN; 224 smbfs_attr_cacheremove(vp); 225 return error; 226 } 227 228 /* 229 * XXX: VOP_CLOSE() usually called without lock held which is suck. Here we 230 * do some heruistic to determine if vnode should be locked. 231 */ 232 static int 233 smbfs_close(ap) 234 struct vop_close_args /* { 235 struct vnodeop_desc *a_desc; 236 struct vnode *a_vp; 237 int a_fflag; 238 struct ucred *a_cred; 239 struct thread *a_td; 240 } */ *ap; 241 { 242 struct vnode *vp = ap->a_vp; 243 struct thread *td = ap->a_td; 244 int dolock; 245 246 VI_LOCK(vp); 247 dolock = (vp->v_iflag & VI_XLOCK) == 0; 248 if (dolock) 249 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY | LK_INTERLOCK, td); 250 else 251 VI_UNLOCK(vp); 252 /* Nothing. */ 253 if (dolock) 254 VOP_UNLOCK(vp, 0, td); 255 return 0; 256 } 257 258 /* 259 * smbfs_getattr call from vfs. 260 */ 261 static int 262 smbfs_getattr(ap) 263 struct vop_getattr_args /* { 264 struct vnode *a_vp; 265 struct vattr *a_vap; 266 struct ucred *a_cred; 267 struct thread *a_td; 268 } */ *ap; 269 { 270 struct vnode *vp = ap->a_vp; 271 struct smbnode *np = VTOSMB(vp); 272 struct vattr *va=ap->a_vap; 273 struct smbfattr fattr; 274 struct smb_cred scred; 275 u_int32_t oldsize; 276 int error; 277 278 SMBVDEBUG("%lx: '%s' %d\n", (long)vp, np->n_name, (vp->v_vflag & VV_ROOT) != 0); 279 error = smbfs_attr_cachelookup(vp, va); 280 if (!error) 281 return 0; 282 SMBVDEBUG("not in the cache\n"); 283 smb_makescred(&scred, ap->a_td, ap->a_cred); 284 oldsize = np->n_size; 285 error = smbfs_smb_lookup(np, NULL, 0, &fattr, &scred); 286 if (error) { 287 SMBVDEBUG("error %d\n", error); 288 return error; 289 } 290 smbfs_attr_cacheenter(vp, &fattr); 291 smbfs_attr_cachelookup(vp, va); 292 if (np->n_flag & NOPEN) 293 np->n_size = oldsize; 294 return 0; 295 } 296 297 static int 298 smbfs_setattr(ap) 299 struct vop_setattr_args /* { 300 struct vnode *a_vp; 301 struct vattr *a_vap; 302 struct ucred *a_cred; 303 struct thread *a_td; 304 } */ *ap; 305 { 306 struct vnode *vp = ap->a_vp; 307 struct smbnode *np = VTOSMB(vp); 308 struct vattr *vap = ap->a_vap; 309 struct timespec *mtime, *atime; 310 struct smb_cred scred; 311 struct smb_share *ssp = np->n_mount->sm_share; 312 struct smb_vc *vcp = SSTOVC(ssp); 313 u_quad_t tsize = 0; 314 int isreadonly, doclose, error = 0; 315 316 SMBVDEBUG("\n"); 317 if (vap->va_flags != VNOVAL) 318 return EOPNOTSUPP; 319 isreadonly = (vp->v_mount->mnt_flag & MNT_RDONLY); 320 /* 321 * Disallow write attempts if the filesystem is mounted read-only. 322 */ 323 if ((vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL || 324 vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL || 325 vap->va_mode != (mode_t)VNOVAL) && isreadonly) 326 return EROFS; 327 smb_makescred(&scred, ap->a_td, ap->a_cred); 328 if (vap->va_size != VNOVAL) { 329 switch (vp->v_type) { 330 case VDIR: 331 return EISDIR; 332 case VREG: 333 break; 334 default: 335 return EINVAL; 336 }; 337 if (isreadonly) 338 return EROFS; 339 doclose = 0; 340 vnode_pager_setsize(vp, (u_long)vap->va_size); 341 tsize = np->n_size; 342 np->n_size = vap->va_size; 343 if ((np->n_flag & NOPEN) == 0) { 344 error = smbfs_smb_open(np, 345 SMB_SM_DENYNONE|SMB_AM_OPENRW, 346 &scred); 347 if (error == 0) 348 doclose = 1; 349 } 350 if (error == 0) 351 error = smbfs_smb_setfsize(np, vap->va_size, &scred); 352 if (doclose) 353 smbfs_smb_close(ssp, np->n_fid, NULL, &scred); 354 if (error) { 355 np->n_size = tsize; 356 vnode_pager_setsize(vp, (u_long)tsize); 357 return error; 358 } 359 } 360 mtime = atime = NULL; 361 if (vap->va_mtime.tv_sec != VNOVAL) 362 mtime = &vap->va_mtime; 363 if (vap->va_atime.tv_sec != VNOVAL) 364 atime = &vap->va_atime; 365 if (mtime != atime) { 366 if (ap->a_cred->cr_uid != VTOSMBFS(vp)->sm_args.uid && 367 (error = suser_cred(ap->a_cred, PRISON_ROOT)) && 368 ((vap->va_vaflags & VA_UTIMES_NULL) == 0 || 369 (error = VOP_ACCESS(vp, VWRITE, ap->a_cred, ap->a_td)))) 370 return (error); 371 #if 0 372 if (mtime == NULL) 373 mtime = &np->n_mtime; 374 if (atime == NULL) 375 atime = &np->n_atime; 376 #endif 377 /* 378 * If file is opened, then we can use handle based calls. 379 * If not, use path based ones. 380 */ 381 if ((np->n_flag & NOPEN) == 0) { 382 if (vcp->vc_flags & SMBV_WIN95) { 383 error = VOP_OPEN(vp, FWRITE, ap->a_cred, ap->a_td, -1); 384 if (!error) { 385 /* error = smbfs_smb_setfattrNT(np, 0, mtime, atime, &scred); 386 VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_td);*/ 387 if (mtime) 388 np->n_mtime = *mtime; 389 VOP_CLOSE(vp, FWRITE, ap->a_cred, ap->a_td); 390 } 391 } else if ((vcp->vc_sopt.sv_caps & SMB_CAP_NT_SMBS)) { 392 error = smbfs_smb_setptime2(np, mtime, atime, 0, &scred); 393 /* error = smbfs_smb_setpattrNT(np, 0, mtime, atime, &scred);*/ 394 } else if (SMB_DIALECT(vcp) >= SMB_DIALECT_LANMAN2_0) { 395 error = smbfs_smb_setptime2(np, mtime, atime, 0, &scred); 396 } else { 397 error = smbfs_smb_setpattr(np, 0, mtime, &scred); 398 } 399 } else { 400 if (vcp->vc_sopt.sv_caps & SMB_CAP_NT_SMBS) { 401 error = smbfs_smb_setfattrNT(np, 0, mtime, atime, &scred); 402 } else if (SMB_DIALECT(vcp) >= SMB_DIALECT_LANMAN1_0) { 403 error = smbfs_smb_setftime(np, mtime, atime, &scred); 404 } else { 405 /* 406 * I have no idea how to handle this for core 407 * level servers. The possible solution is to 408 * update mtime after file is closed. 409 */ 410 SMBERROR("can't update times on an opened file\n"); 411 } 412 } 413 } 414 /* 415 * Invalidate attribute cache in case if server doesn't set 416 * required attributes. 417 */ 418 smbfs_attr_cacheremove(vp); /* invalidate cache */ 419 VOP_GETATTR(vp, vap, ap->a_cred, ap->a_td); 420 np->n_mtime.tv_sec = vap->va_mtime.tv_sec; 421 return error; 422 } 423 /* 424 * smbfs_read call. 425 */ 426 static int 427 smbfs_read(ap) 428 struct vop_read_args /* { 429 struct vnode *a_vp; 430 struct uio *a_uio; 431 int a_ioflag; 432 struct ucred *a_cred; 433 } */ *ap; 434 { 435 struct vnode *vp = ap->a_vp; 436 struct uio *uio = ap->a_uio; 437 438 SMBVDEBUG("\n"); 439 if (vp->v_type != VREG && vp->v_type != VDIR) 440 return EPERM; 441 return smbfs_readvnode(vp, uio, ap->a_cred); 442 } 443 444 static int 445 smbfs_write(ap) 446 struct vop_write_args /* { 447 struct vnode *a_vp; 448 struct uio *a_uio; 449 int a_ioflag; 450 struct ucred *a_cred; 451 } */ *ap; 452 { 453 struct vnode *vp = ap->a_vp; 454 struct uio *uio = ap->a_uio; 455 456 SMBVDEBUG("%d,ofs=%d,sz=%d\n",vp->v_type, (int)uio->uio_offset, uio->uio_resid); 457 if (vp->v_type != VREG) 458 return (EPERM); 459 return smbfs_writevnode(vp, uio, ap->a_cred,ap->a_ioflag); 460 } 461 /* 462 * smbfs_create call 463 * Create a regular file. On entry the directory to contain the file being 464 * created is locked. We must release before we return. We must also free 465 * the pathname buffer pointed at by cnp->cn_pnbuf, always on error, or 466 * only if the SAVESTART bit in cn_flags is clear on success. 467 */ 468 static int 469 smbfs_create(ap) 470 struct vop_create_args /* { 471 struct vnode *a_dvp; 472 struct vnode **a_vpp; 473 struct componentname *a_cnp; 474 struct vattr *a_vap; 475 } */ *ap; 476 { 477 struct vnode *dvp = ap->a_dvp; 478 struct vattr *vap = ap->a_vap; 479 struct vnode **vpp=ap->a_vpp; 480 struct componentname *cnp = ap->a_cnp; 481 struct smbnode *dnp = VTOSMB(dvp); 482 struct vnode *vp; 483 struct vattr vattr; 484 struct smbfattr fattr; 485 struct smb_cred scred; 486 char *name = cnp->cn_nameptr; 487 int nmlen = cnp->cn_namelen; 488 int error; 489 490 491 SMBVDEBUG("\n"); 492 *vpp = NULL; 493 if (vap->va_type != VREG) 494 return EOPNOTSUPP; 495 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_thread))) 496 return error; 497 smb_makescred(&scred, cnp->cn_thread, cnp->cn_cred); 498 499 error = smbfs_smb_create(dnp, name, nmlen, &scred); 500 if (error) 501 return error; 502 error = smbfs_smb_lookup(dnp, name, nmlen, &fattr, &scred); 503 if (error) 504 return error; 505 error = smbfs_nget(VTOVFS(dvp), dvp, name, nmlen, &fattr, &vp); 506 if (error) 507 return error; 508 *vpp = vp; 509 if (cnp->cn_flags & MAKEENTRY) 510 cache_enter(dvp, vp, cnp); 511 return error; 512 } 513 514 static int 515 smbfs_remove(ap) 516 struct vop_remove_args /* { 517 struct vnodeop_desc *a_desc; 518 struct vnode * a_dvp; 519 struct vnode * a_vp; 520 struct componentname * a_cnp; 521 } */ *ap; 522 { 523 struct vnode *vp = ap->a_vp; 524 /* struct vnode *dvp = ap->a_dvp;*/ 525 struct componentname *cnp = ap->a_cnp; 526 struct smbnode *np = VTOSMB(vp); 527 struct smb_cred scred; 528 int error; 529 530 if (vp->v_type == VDIR || (np->n_flag & NOPEN) != 0 || vrefcnt(vp) != 1) 531 return EPERM; 532 smb_makescred(&scred, cnp->cn_thread, cnp->cn_cred); 533 error = smbfs_smb_delete(np, &scred); 534 cache_purge(vp); 535 return error; 536 } 537 538 /* 539 * smbfs_file rename call 540 */ 541 static int 542 smbfs_rename(ap) 543 struct vop_rename_args /* { 544 struct vnode *a_fdvp; 545 struct vnode *a_fvp; 546 struct componentname *a_fcnp; 547 struct vnode *a_tdvp; 548 struct vnode *a_tvp; 549 struct componentname *a_tcnp; 550 } */ *ap; 551 { 552 struct vnode *fvp = ap->a_fvp; 553 struct vnode *tvp = ap->a_tvp; 554 struct vnode *fdvp = ap->a_fdvp; 555 struct vnode *tdvp = ap->a_tdvp; 556 struct componentname *tcnp = ap->a_tcnp; 557 /* struct componentname *fcnp = ap->a_fcnp;*/ 558 struct smb_cred scred; 559 u_int16_t flags = 6; 560 int error=0; 561 562 /* Check for cross-device rename */ 563 if ((fvp->v_mount != tdvp->v_mount) || 564 (tvp && (fvp->v_mount != tvp->v_mount))) { 565 error = EXDEV; 566 goto out; 567 } 568 569 if (tvp && vrefcnt(tvp) > 1) { 570 error = EBUSY; 571 goto out; 572 } 573 flags = 0x10; /* verify all writes */ 574 if (fvp->v_type == VDIR) { 575 flags |= 2; 576 } else if (fvp->v_type == VREG) { 577 flags |= 1; 578 } else { 579 error = EINVAL; 580 goto out; 581 } 582 smb_makescred(&scred, tcnp->cn_thread, tcnp->cn_cred); 583 /* 584 * It seems that Samba doesn't implement SMB_COM_MOVE call... 585 */ 586 #ifdef notnow 587 if (SMB_DIALECT(SSTOCN(smp->sm_share)) >= SMB_DIALECT_LANMAN1_0) { 588 error = smbfs_smb_move(VTOSMB(fvp), VTOSMB(tdvp), 589 tcnp->cn_nameptr, tcnp->cn_namelen, flags, &scred); 590 } else 591 #endif 592 { 593 /* 594 * We have to do the work atomicaly 595 */ 596 if (tvp && tvp != fvp) { 597 error = smbfs_smb_delete(VTOSMB(tvp), &scred); 598 if (error) 599 goto out_cacherem; 600 } 601 error = smbfs_smb_rename(VTOSMB(fvp), VTOSMB(tdvp), 602 tcnp->cn_nameptr, tcnp->cn_namelen, &scred); 603 } 604 605 if (fvp->v_type == VDIR) { 606 if (tvp != NULL && tvp->v_type == VDIR) 607 cache_purge(tdvp); 608 cache_purge(fdvp); 609 } 610 611 out_cacherem: 612 smbfs_attr_cacheremove(fdvp); 613 smbfs_attr_cacheremove(tdvp); 614 out: 615 if (tdvp == tvp) 616 vrele(tdvp); 617 else 618 vput(tdvp); 619 if (tvp) 620 vput(tvp); 621 vrele(fdvp); 622 vrele(fvp); 623 #ifdef possible_mistake 624 vgone(fvp); 625 if (tvp) 626 vgone(tvp); 627 #endif 628 return error; 629 } 630 631 /* 632 * somtime it will come true... 633 */ 634 static int 635 smbfs_link(ap) 636 struct vop_link_args /* { 637 struct vnode *a_tdvp; 638 struct vnode *a_vp; 639 struct componentname *a_cnp; 640 } */ *ap; 641 { 642 return EOPNOTSUPP; 643 } 644 645 /* 646 * smbfs_symlink link create call. 647 * Sometime it will be functional... 648 */ 649 static int 650 smbfs_symlink(ap) 651 struct vop_symlink_args /* { 652 struct vnode *a_dvp; 653 struct vnode **a_vpp; 654 struct componentname *a_cnp; 655 struct vattr *a_vap; 656 char *a_target; 657 } */ *ap; 658 { 659 return EOPNOTSUPP; 660 } 661 662 static int 663 smbfs_mknod(ap) 664 struct vop_mknod_args /* { 665 } */ *ap; 666 { 667 return EOPNOTSUPP; 668 } 669 670 static int 671 smbfs_mkdir(ap) 672 struct vop_mkdir_args /* { 673 struct vnode *a_dvp; 674 struct vnode **a_vpp; 675 struct componentname *a_cnp; 676 struct vattr *a_vap; 677 } */ *ap; 678 { 679 struct vnode *dvp = ap->a_dvp; 680 /* struct vattr *vap = ap->a_vap;*/ 681 struct vnode *vp; 682 struct componentname *cnp = ap->a_cnp; 683 struct smbnode *dnp = VTOSMB(dvp); 684 struct vattr vattr; 685 struct smb_cred scred; 686 struct smbfattr fattr; 687 char *name = cnp->cn_nameptr; 688 int len = cnp->cn_namelen; 689 int error; 690 691 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_thread))) { 692 return error; 693 } 694 if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.')))) 695 return EEXIST; 696 smb_makescred(&scred, cnp->cn_thread, cnp->cn_cred); 697 error = smbfs_smb_mkdir(dnp, name, len, &scred); 698 if (error) 699 return error; 700 error = smbfs_smb_lookup(dnp, name, len, &fattr, &scred); 701 if (error) 702 return error; 703 error = smbfs_nget(VTOVFS(dvp), dvp, name, len, &fattr, &vp); 704 if (error) 705 return error; 706 *ap->a_vpp = vp; 707 return 0; 708 } 709 710 /* 711 * smbfs_remove directory call 712 */ 713 static int 714 smbfs_rmdir(ap) 715 struct vop_rmdir_args /* { 716 struct vnode *a_dvp; 717 struct vnode *a_vp; 718 struct componentname *a_cnp; 719 } */ *ap; 720 { 721 struct vnode *vp = ap->a_vp; 722 struct vnode *dvp = ap->a_dvp; 723 struct componentname *cnp = ap->a_cnp; 724 /* struct smbmount *smp = VTOSMBFS(vp);*/ 725 struct smbnode *dnp = VTOSMB(dvp); 726 struct smbnode *np = VTOSMB(vp); 727 struct smb_cred scred; 728 int error; 729 730 if (dvp == vp) 731 return EINVAL; 732 733 smb_makescred(&scred, cnp->cn_thread, cnp->cn_cred); 734 error = smbfs_smb_rmdir(np, &scred); 735 dnp->n_flag |= NMODIFIED; 736 smbfs_attr_cacheremove(dvp); 737 /* cache_purge(dvp);*/ 738 cache_purge(vp); 739 return error; 740 } 741 742 /* 743 * smbfs_readdir call 744 */ 745 static int 746 smbfs_readdir(ap) 747 struct vop_readdir_args /* { 748 struct vnode *a_vp; 749 struct uio *a_uio; 750 struct ucred *a_cred; 751 int *a_eofflag; 752 u_long *a_cookies; 753 int a_ncookies; 754 } */ *ap; 755 { 756 struct vnode *vp = ap->a_vp; 757 struct uio *uio = ap->a_uio; 758 int error; 759 760 if (vp->v_type != VDIR) 761 return (EPERM); 762 #ifdef notnow 763 if (ap->a_ncookies) { 764 printf("smbfs_readdir: no support for cookies now..."); 765 return (EOPNOTSUPP); 766 } 767 #endif 768 error = smbfs_readvnode(vp, uio, ap->a_cred); 769 return error; 770 } 771 772 /* ARGSUSED */ 773 static int 774 smbfs_fsync(ap) 775 struct vop_fsync_args /* { 776 struct vnodeop_desc *a_desc; 777 struct vnode * a_vp; 778 struct ucred * a_cred; 779 int a_waitfor; 780 struct thread * a_td; 781 } */ *ap; 782 { 783 /* return (smb_flush(ap->a_vp, ap->a_cred, ap->a_waitfor, ap->a_td, 1));*/ 784 return (0); 785 } 786 787 static 788 int smbfs_print (ap) 789 struct vop_print_args /* { 790 struct vnode *a_vp; 791 } */ *ap; 792 { 793 struct vnode *vp = ap->a_vp; 794 struct smbnode *np = VTOSMB(vp); 795 796 if (np == NULL) { 797 printf("no smbnode data\n"); 798 return (0); 799 } 800 printf("\tname = %s, parent = %p, open = %d\n", np->n_name, 801 np->n_parent ? np->n_parent : NULL, (np->n_flag & NOPEN) != 0); 802 return (0); 803 } 804 805 static int 806 smbfs_pathconf (ap) 807 struct vop_pathconf_args /* { 808 struct vnode *vp; 809 int name; 810 register_t *retval; 811 } */ *ap; 812 { 813 struct smbmount *smp = VFSTOSMBFS(VTOVFS(ap->a_vp)); 814 struct smb_vc *vcp = SSTOVC(smp->sm_share); 815 register_t *retval = ap->a_retval; 816 int error = 0; 817 818 switch (ap->a_name) { 819 case _PC_LINK_MAX: 820 *retval = 0; 821 break; 822 case _PC_NAME_MAX: 823 *retval = (vcp->vc_hflags2 & SMB_FLAGS2_KNOWS_LONG_NAMES) ? 255 : 12; 824 break; 825 case _PC_PATH_MAX: 826 *retval = 800; /* XXX: a correct one ? */ 827 break; 828 default: 829 error = EINVAL; 830 } 831 return error; 832 } 833 834 static int 835 smbfs_strategy (ap) 836 struct vop_strategy_args /* { 837 struct buf *a_bp 838 } */ *ap; 839 { 840 struct buf *bp=ap->a_bp; 841 struct ucred *cr; 842 struct thread *td; 843 int error = 0; 844 845 KASSERT(ap->a_vp == ap->a_bp->b_vp, ("%s(%p != %p)", 846 __func__, ap->a_vp, ap->a_bp->b_vp)); 847 SMBVDEBUG("\n"); 848 if (bp->b_flags & B_PHYS) 849 panic("smbfs physio"); 850 if (bp->b_flags & B_ASYNC) 851 td = (struct thread *)0; 852 else 853 td = curthread; /* XXX */ 854 if (bp->b_iocmd == BIO_READ) 855 cr = bp->b_rcred; 856 else 857 cr = bp->b_wcred; 858 859 if ((bp->b_flags & B_ASYNC) == 0 ) 860 error = smbfs_doio(bp, cr, td); 861 return error; 862 } 863 864 int 865 smbfs_ioctl(ap) 866 struct vop_ioctl_args /* { 867 struct vnode *a_vp; 868 u_long a_command; 869 caddr_t a_data; 870 int fflag; 871 struct ucred *cred; 872 struct thread *td; 873 } */ *ap; 874 { 875 return ENOTTY; 876 } 877 878 static char smbfs_atl[] = "rhsvda"; 879 static int 880 smbfs_getextattr(struct vop_getextattr_args *ap) 881 /* { 882 IN struct vnode *a_vp; 883 IN char *a_name; 884 INOUT struct uio *a_uio; 885 IN struct ucred *a_cred; 886 IN struct thread *a_td; 887 }; 888 */ 889 { 890 struct vnode *vp = ap->a_vp; 891 struct thread *td = ap->a_td; 892 struct ucred *cred = ap->a_cred; 893 struct uio *uio = ap->a_uio; 894 const char *name = ap->a_name; 895 struct smbnode *np = VTOSMB(vp); 896 struct vattr vattr; 897 char buf[10]; 898 int i, attr, error; 899 900 error = VOP_ACCESS(vp, VREAD, cred, td); 901 if (error) 902 return error; 903 error = VOP_GETATTR(vp, &vattr, cred, td); 904 if (error) 905 return error; 906 if (strcmp(name, "dosattr") == 0) { 907 attr = np->n_dosattr; 908 for (i = 0; i < 6; i++, attr >>= 1) 909 buf[i] = (attr & 1) ? smbfs_atl[i] : '-'; 910 buf[i] = 0; 911 error = uiomove(buf, i, uio); 912 913 } else 914 error = EINVAL; 915 return error; 916 } 917 918 /* 919 * Since we expected to support F_GETLK (and SMB protocol has no such function), 920 * it is necessary to use lf_advlock(). It would be nice if this function had 921 * a callback mechanism because it will help to improve a level of consistency. 922 */ 923 int 924 smbfs_advlock(ap) 925 struct vop_advlock_args /* { 926 struct vnode *a_vp; 927 caddr_t a_id; 928 int a_op; 929 struct flock *a_fl; 930 int a_flags; 931 } */ *ap; 932 { 933 struct vnode *vp = ap->a_vp; 934 struct smbnode *np = VTOSMB(vp); 935 struct flock *fl = ap->a_fl; 936 caddr_t id = (caddr_t)1 /* ap->a_id */; 937 /* int flags = ap->a_flags;*/ 938 struct thread *td = curthread; 939 struct smb_cred scred; 940 u_quad_t size; 941 off_t start, end, oadd; 942 int error, lkop; 943 944 if (vp->v_type == VDIR) { 945 /* 946 * SMB protocol have no support for directory locking. 947 * Although locks can be processed on local machine, I don't 948 * think that this is a good idea, because some programs 949 * can work wrong assuming directory is locked. So, we just 950 * return 'operation not supported 951 */ 952 return EOPNOTSUPP; 953 } 954 size = np->n_size; 955 switch (fl->l_whence) { 956 957 case SEEK_SET: 958 case SEEK_CUR: 959 start = fl->l_start; 960 break; 961 962 case SEEK_END: 963 if (size > OFF_MAX || 964 (fl->l_start > 0 && size > OFF_MAX - fl->l_start)) 965 return EOVERFLOW; 966 start = size + fl->l_start; 967 break; 968 969 default: 970 return EINVAL; 971 } 972 if (start < 0) 973 return EINVAL; 974 if (fl->l_len < 0) { 975 if (start == 0) 976 return EINVAL; 977 end = start - 1; 978 start += fl->l_len; 979 if (start < 0) 980 return EINVAL; 981 } else if (fl->l_len == 0) 982 end = -1; 983 else { 984 oadd = fl->l_len - 1; 985 if (oadd > OFF_MAX - start) 986 return EOVERFLOW; 987 end = start + oadd; 988 } 989 smb_makescred(&scred, td, td->td_ucred); 990 switch (ap->a_op) { 991 case F_SETLK: 992 switch (fl->l_type) { 993 case F_WRLCK: 994 lkop = SMB_LOCK_EXCL; 995 break; 996 case F_RDLCK: 997 lkop = SMB_LOCK_SHARED; 998 break; 999 case F_UNLCK: 1000 lkop = SMB_LOCK_RELEASE; 1001 break; 1002 default: 1003 return EINVAL; 1004 } 1005 error = lf_advlock(ap, &np->n_lockf, size); 1006 if (error) 1007 break; 1008 lkop = SMB_LOCK_EXCL; 1009 error = smbfs_smb_lock(np, lkop, id, start, end, &scred); 1010 if (error) { 1011 ap->a_op = F_UNLCK; 1012 lf_advlock(ap, &np->n_lockf, size); 1013 } 1014 break; 1015 case F_UNLCK: 1016 lf_advlock(ap, &np->n_lockf, size); 1017 error = smbfs_smb_lock(np, SMB_LOCK_RELEASE, id, start, end, &scred); 1018 break; 1019 case F_GETLK: 1020 error = lf_advlock(ap, &np->n_lockf, size); 1021 break; 1022 default: 1023 return EINVAL; 1024 } 1025 return error; 1026 } 1027 1028 static int 1029 smbfs_pathcheck(struct smbmount *smp, const char *name, int nmlen, int nameiop) 1030 { 1031 static const char *badchars = "*/\\[]:<>=;?"; 1032 static const char *badchars83 = " +|,"; 1033 const char *cp; 1034 int i, error; 1035 1036 if (nameiop == LOOKUP) 1037 return 0; 1038 error = ENOENT; 1039 if (SMB_DIALECT(SSTOVC(smp->sm_share)) < SMB_DIALECT_LANMAN2_0) { 1040 /* 1041 * Name should conform 8.3 format 1042 */ 1043 if (nmlen > 12) 1044 return ENAMETOOLONG; 1045 cp = index(name, '.'); 1046 if (cp == NULL) 1047 return error; 1048 if (cp == name || (cp - name) > 8) 1049 return error; 1050 cp = index(cp + 1, '.'); 1051 if (cp != NULL) 1052 return error; 1053 for (cp = name, i = 0; i < nmlen; i++, cp++) 1054 if (index(badchars83, *cp) != NULL) 1055 return error; 1056 } 1057 for (cp = name, i = 0; i < nmlen; i++, cp++) 1058 if (index(badchars, *cp) != NULL) 1059 return error; 1060 return 0; 1061 } 1062 1063 #ifndef PDIRUNLOCK 1064 #define PDIRUNLOCK 0 1065 #endif 1066 1067 /* 1068 * Things go even weird without fixed inode numbers... 1069 */ 1070 int 1071 smbfs_lookup(ap) 1072 struct vop_lookup_args /* { 1073 struct vnodeop_desc *a_desc; 1074 struct vnode *a_dvp; 1075 struct vnode **a_vpp; 1076 struct componentname *a_cnp; 1077 } */ *ap; 1078 { 1079 struct componentname *cnp = ap->a_cnp; 1080 struct thread *td = cnp->cn_thread; 1081 struct vnode *dvp = ap->a_dvp; 1082 struct vnode **vpp = ap->a_vpp; 1083 struct vnode *vp; 1084 struct smbmount *smp; 1085 struct mount *mp = dvp->v_mount; 1086 struct smbnode *dnp; 1087 struct smbfattr fattr, *fap; 1088 struct smb_cred scred; 1089 char *name = cnp->cn_nameptr; 1090 int flags = cnp->cn_flags; 1091 int nameiop = cnp->cn_nameiop; 1092 int nmlen = cnp->cn_namelen; 1093 int lockparent, wantparent, error, islastcn, isdot; 1094 1095 SMBVDEBUG("\n"); 1096 cnp->cn_flags &= ~PDIRUNLOCK; 1097 if (dvp->v_type != VDIR) 1098 return ENOTDIR; 1099 if ((flags & ISDOTDOT) && (dvp->v_vflag & VV_ROOT)) { 1100 SMBFSERR("invalid '..'\n"); 1101 return EIO; 1102 } 1103 #ifdef SMB_VNODE_DEBUG 1104 { 1105 char *cp, c; 1106 1107 cp = name + nmlen; 1108 c = *cp; 1109 *cp = 0; 1110 SMBVDEBUG("%d '%s' in '%s' id=d\n", nameiop, name, 1111 VTOSMB(dvp)->n_name); 1112 *cp = c; 1113 } 1114 #endif 1115 islastcn = flags & ISLASTCN; 1116 if (islastcn && (mp->mnt_flag & MNT_RDONLY) && (nameiop != LOOKUP)) 1117 return EROFS; 1118 if ((error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, td)) != 0) 1119 return error; 1120 lockparent = flags & LOCKPARENT; 1121 wantparent = flags & (LOCKPARENT|WANTPARENT); 1122 smp = VFSTOSMBFS(mp); 1123 dnp = VTOSMB(dvp); 1124 isdot = (nmlen == 1 && name[0] == '.'); 1125 1126 error = smbfs_pathcheck(smp, cnp->cn_nameptr, cnp->cn_namelen, nameiop); 1127 1128 if (error) 1129 return ENOENT; 1130 1131 error = cache_lookup(dvp, vpp, cnp); 1132 SMBVDEBUG("cache_lookup returned %d\n", error); 1133 if (error > 0) 1134 return error; 1135 if (error) { /* name was found */ 1136 struct vattr vattr; 1137 int vpid; 1138 1139 vp = *vpp; 1140 mp_fixme("Unlocked v_id access."); 1141 vpid = vp->v_id; 1142 if (dvp == vp) { /* lookup on current */ 1143 vref(vp); 1144 error = 0; 1145 SMBVDEBUG("cached '.'\n"); 1146 } else if (flags & ISDOTDOT) { 1147 VOP_UNLOCK(dvp, 0, td); /* unlock parent */ 1148 cnp->cn_flags |= PDIRUNLOCK; 1149 error = vget(vp, LK_EXCLUSIVE, td); 1150 if (!error && lockparent && islastcn) { 1151 error = vn_lock(dvp, LK_EXCLUSIVE, td); 1152 if (error == 0) 1153 cnp->cn_flags &= ~PDIRUNLOCK; 1154 } 1155 } else { 1156 error = vget(vp, LK_EXCLUSIVE, td); 1157 if (!lockparent || error || !islastcn) { 1158 VOP_UNLOCK(dvp, 0, td); 1159 cnp->cn_flags |= PDIRUNLOCK; 1160 } 1161 } 1162 if (!error) { 1163 if (vpid == vp->v_id) { 1164 if (!VOP_GETATTR(vp, &vattr, cnp->cn_cred, td) 1165 /* && vattr.va_ctime.tv_sec == VTOSMB(vp)->n_ctime*/) { 1166 if (nameiop != LOOKUP && islastcn) 1167 cnp->cn_flags |= SAVENAME; 1168 SMBVDEBUG("use cached vnode\n"); 1169 return (0); 1170 } 1171 cache_purge(vp); 1172 } 1173 vput(vp); 1174 if (lockparent && dvp != vp && islastcn) 1175 VOP_UNLOCK(dvp, 0, td); 1176 } 1177 error = vn_lock(dvp, LK_EXCLUSIVE, td); 1178 *vpp = NULLVP; 1179 if (error) { 1180 cnp->cn_flags |= PDIRUNLOCK; 1181 return (error); 1182 } 1183 cnp->cn_flags &= ~PDIRUNLOCK; 1184 } 1185 /* 1186 * entry is not in the cache or has been expired 1187 */ 1188 error = 0; 1189 *vpp = NULLVP; 1190 smb_makescred(&scred, td, cnp->cn_cred); 1191 fap = &fattr; 1192 if (flags & ISDOTDOT) { 1193 error = smbfs_smb_lookup(VTOSMB(dnp->n_parent), NULL, 0, fap, 1194 &scred); 1195 SMBVDEBUG("result of dotdot lookup: %d\n", error); 1196 } else { 1197 fap = &fattr; 1198 error = smbfs_smb_lookup(dnp, name, nmlen, fap, &scred); 1199 /* if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.')*/ 1200 SMBVDEBUG("result of smbfs_smb_lookup: %d\n", error); 1201 } 1202 if (error && error != ENOENT) 1203 return error; 1204 if (error) { /* entry not found */ 1205 /* 1206 * Handle RENAME or CREATE case... 1207 */ 1208 if ((nameiop == CREATE || nameiop == RENAME) && wantparent && islastcn) { 1209 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, td); 1210 if (error) 1211 return error; 1212 cnp->cn_flags |= SAVENAME; 1213 if (!lockparent) { 1214 VOP_UNLOCK(dvp, 0, td); 1215 cnp->cn_flags |= PDIRUNLOCK; 1216 } 1217 return (EJUSTRETURN); 1218 } 1219 return ENOENT; 1220 }/* else { 1221 SMBVDEBUG("Found entry %s with id=%d\n", fap->entryName, fap->dirEntNum); 1222 }*/ 1223 /* 1224 * handle DELETE case ... 1225 */ 1226 if (nameiop == DELETE && islastcn) { /* delete last component */ 1227 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, td); 1228 if (error) 1229 return error; 1230 if (isdot) { 1231 VREF(dvp); 1232 *vpp = dvp; 1233 return 0; 1234 } 1235 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp); 1236 if (error) 1237 return error; 1238 *vpp = vp; 1239 cnp->cn_flags |= SAVENAME; 1240 if (!lockparent) { 1241 VOP_UNLOCK(dvp, 0, td); 1242 cnp->cn_flags |= PDIRUNLOCK; 1243 } 1244 return 0; 1245 } 1246 if (nameiop == RENAME && islastcn && wantparent) { 1247 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, td); 1248 if (error) 1249 return error; 1250 if (isdot) 1251 return EISDIR; 1252 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp); 1253 if (error) 1254 return error; 1255 *vpp = vp; 1256 cnp->cn_flags |= SAVENAME; 1257 if (!lockparent) { 1258 VOP_UNLOCK(dvp, 0, td); 1259 cnp->cn_flags |= PDIRUNLOCK; 1260 } 1261 return 0; 1262 } 1263 if (flags & ISDOTDOT) { 1264 VOP_UNLOCK(dvp, 0, td); 1265 error = smbfs_nget(mp, dvp, name, nmlen, NULL, &vp); 1266 if (error) { 1267 vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY, td); 1268 return error; 1269 } 1270 if (lockparent && islastcn) { 1271 error = vn_lock(dvp, LK_EXCLUSIVE, td); 1272 if (error) { 1273 cnp->cn_flags |= PDIRUNLOCK; 1274 vput(vp); 1275 return error; 1276 } 1277 } 1278 *vpp = vp; 1279 } else if (isdot) { 1280 vref(dvp); 1281 *vpp = dvp; 1282 } else { 1283 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp); 1284 if (error) 1285 return error; 1286 *vpp = vp; 1287 SMBVDEBUG("lookup: getnewvp!\n"); 1288 if (!lockparent || !islastcn) { 1289 VOP_UNLOCK(dvp, 0, td); 1290 cnp->cn_flags |= PDIRUNLOCK; 1291 } 1292 } 1293 if ((cnp->cn_flags & MAKEENTRY)/* && !islastcn*/) { 1294 /* VTOSMB(*vpp)->n_ctime = VTOSMB(*vpp)->n_vattr.va_ctime.tv_sec;*/ 1295 cache_enter(dvp, *vpp, cnp); 1296 } 1297 return 0; 1298 } 1299