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: src/sys/fs/smbfs/smbfs_vnops.c,v 1.2.2.8 2003/04/04 08:57:23 tjr Exp $ 33 * $DragonFly: src/sys/vfs/smbfs/smbfs_vnops.c,v 1.11 2004/03/01 06:33:23 dillon Exp $ 34 */ 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/kernel.h> 38 #include <sys/proc.h> 39 #include <sys/namei.h> 40 #include <sys/fcntl.h> 41 #include <sys/mount.h> 42 #include <sys/unistd.h> 43 #include <sys/vnode.h> 44 #include <sys/lockf.h> 45 46 #include <vm/vm.h> 47 #include <vm/vm_extern.h> 48 #include <vm/vm_zone.h> 49 50 51 #include <netproto/smb/smb.h> 52 #include <netproto/smb/smb_conn.h> 53 #include <netproto/smb/smb_subr.h> 54 55 #include "smbfs.h" 56 #include "smbfs_node.h" 57 #include "smbfs_subr.h" 58 59 #include <sys/buf.h> 60 61 /* 62 * Prototypes for SMBFS vnode operations 63 */ 64 static int smbfs_create(struct vop_create_args *); 65 static int smbfs_mknod(struct vop_mknod_args *); 66 static int smbfs_open(struct vop_open_args *); 67 static int smbfs_close(struct vop_close_args *); 68 static int smbfs_access(struct vop_access_args *); 69 static int smbfs_getattr(struct vop_getattr_args *); 70 static int smbfs_setattr(struct vop_setattr_args *); 71 static int smbfs_read(struct vop_read_args *); 72 static int smbfs_write(struct vop_write_args *); 73 static int smbfs_fsync(struct vop_fsync_args *); 74 static int smbfs_remove(struct vop_remove_args *); 75 static int smbfs_link(struct vop_link_args *); 76 static int smbfs_lookup(struct vop_lookup_args *); 77 static int smbfs_rename(struct vop_rename_args *); 78 static int smbfs_mkdir(struct vop_mkdir_args *); 79 static int smbfs_rmdir(struct vop_rmdir_args *); 80 static int smbfs_symlink(struct vop_symlink_args *); 81 static int smbfs_readdir(struct vop_readdir_args *); 82 static int smbfs_bmap(struct vop_bmap_args *); 83 static int smbfs_strategy(struct vop_strategy_args *); 84 static int smbfs_print(struct vop_print_args *); 85 static int smbfs_pathconf(struct vop_pathconf_args *ap); 86 static int smbfs_advlock(struct vop_advlock_args *); 87 static int smbfs_getextattr(struct vop_getextattr_args *ap); 88 89 vop_t **smbfs_vnodeop_p; 90 static struct vnodeopv_entry_desc smbfs_vnodeop_entries[] = { 91 { &vop_default_desc, (vop_t *) vop_defaultop }, 92 { &vop_access_desc, (vop_t *) smbfs_access }, 93 { &vop_advlock_desc, (vop_t *) smbfs_advlock }, 94 { &vop_bmap_desc, (vop_t *) smbfs_bmap }, 95 { &vop_close_desc, (vop_t *) smbfs_close }, 96 { &vop_create_desc, (vop_t *) smbfs_create }, 97 { &vop_fsync_desc, (vop_t *) smbfs_fsync }, 98 { &vop_getattr_desc, (vop_t *) smbfs_getattr }, 99 { &vop_getpages_desc, (vop_t *) smbfs_getpages }, 100 { &vop_inactive_desc, (vop_t *) smbfs_inactive }, 101 { &vop_ioctl_desc, (vop_t *) smbfs_ioctl }, 102 { &vop_islocked_desc, (vop_t *) vop_stdislocked }, 103 { &vop_link_desc, (vop_t *) smbfs_link }, 104 { &vop_lock_desc, (vop_t *) vop_stdlock }, 105 { &vop_lookup_desc, (vop_t *) smbfs_lookup }, 106 { &vop_mkdir_desc, (vop_t *) smbfs_mkdir }, 107 { &vop_mknod_desc, (vop_t *) smbfs_mknod }, 108 { &vop_open_desc, (vop_t *) smbfs_open }, 109 { &vop_pathconf_desc, (vop_t *) smbfs_pathconf }, 110 { &vop_print_desc, (vop_t *) smbfs_print }, 111 { &vop_putpages_desc, (vop_t *) smbfs_putpages }, 112 { &vop_read_desc, (vop_t *) smbfs_read }, 113 { &vop_readdir_desc, (vop_t *) smbfs_readdir }, 114 { &vop_reclaim_desc, (vop_t *) smbfs_reclaim }, 115 { &vop_remove_desc, (vop_t *) smbfs_remove }, 116 { &vop_rename_desc, (vop_t *) smbfs_rename }, 117 { &vop_rmdir_desc, (vop_t *) smbfs_rmdir }, 118 { &vop_setattr_desc, (vop_t *) smbfs_setattr }, 119 { &vop_strategy_desc, (vop_t *) smbfs_strategy }, 120 { &vop_symlink_desc, (vop_t *) smbfs_symlink }, 121 { &vop_unlock_desc, (vop_t *) vop_stdunlock }, 122 { &vop_write_desc, (vop_t *) smbfs_write }, 123 { &vop_getextattr_desc, (vop_t *) smbfs_getextattr }, 124 /* { &vop_setextattr_desc, (vop_t *) smbfs_setextattr },*/ 125 { NULL, NULL } 126 }; 127 128 static struct vnodeopv_desc smbfs_vnodeop_opv_desc = 129 { &smbfs_vnodeop_p, smbfs_vnodeop_entries }; 130 131 VNODEOP_SET(smbfs_vnodeop_opv_desc); 132 133 static int 134 smbfs_access(ap) 135 struct vop_access_args /* { 136 struct vnode *a_vp; 137 int a_mode; 138 struct ucred *a_cred; 139 struct thread *a_td; 140 } */ *ap; 141 { 142 struct vnode *vp = ap->a_vp; 143 struct ucred *cred = ap->a_cred; 144 u_int mode = ap->a_mode; 145 struct smbmount *smp = VTOSMBFS(vp); 146 int error = 0; 147 148 SMBVDEBUG("\n"); 149 if ((mode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY)) { 150 switch (vp->v_type) { 151 case VREG: case VDIR: case VLNK: 152 return EROFS; 153 default: 154 break; 155 } 156 } 157 if (cred->cr_uid == 0) 158 return 0; 159 if (cred->cr_uid != smp->sm_args.uid) { 160 mode >>= 3; 161 if (!groupmember(smp->sm_args.gid, cred)) 162 mode >>= 3; 163 } 164 error = (((vp->v_type == VREG) ? smp->sm_args.file_mode : smp->sm_args.dir_mode) & mode) == mode ? 0 : EACCES; 165 return error; 166 } 167 168 /* ARGSUSED */ 169 static int 170 smbfs_open(ap) 171 struct vop_open_args /* { 172 struct vnode *a_vp; 173 int a_mode; 174 struct ucred *a_cred; 175 struct thread *a_td; 176 } */ *ap; 177 { 178 struct vnode *vp = ap->a_vp; 179 struct smbnode *np = VTOSMB(vp); 180 struct smb_cred scred; 181 struct vattr vattr; 182 int mode = ap->a_mode; 183 int error, accmode; 184 185 SMBVDEBUG("%s,%d\n", np->n_name, np->n_opencount); 186 if (vp->v_type != VREG && vp->v_type != VDIR) { 187 SMBFSERR("open eacces vtype=%d\n", vp->v_type); 188 return EACCES; 189 } 190 if (vp->v_type == VDIR) { 191 np->n_opencount++; 192 return 0; 193 } 194 if (np->n_flag & NMODIFIED) { 195 if ((error = smbfs_vinvalbuf(vp, V_SAVE, ap->a_td, 1)) == EINTR) 196 return error; 197 smbfs_attr_cacheremove(vp); 198 error = VOP_GETATTR(vp, &vattr, ap->a_td); 199 if (error) 200 return error; 201 np->n_mtime.tv_sec = vattr.va_mtime.tv_sec; 202 } else { 203 error = VOP_GETATTR(vp, &vattr, ap->a_td); 204 if (error) 205 return error; 206 if (np->n_mtime.tv_sec != vattr.va_mtime.tv_sec) { 207 error = smbfs_vinvalbuf(vp, V_SAVE, ap->a_td, 1); 208 if (error == EINTR) 209 return error; 210 np->n_mtime.tv_sec = vattr.va_mtime.tv_sec; 211 } 212 } 213 if (np->n_opencount) { 214 np->n_opencount++; 215 return 0; 216 } 217 accmode = SMB_AM_OPENREAD; 218 if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0) 219 accmode = SMB_AM_OPENRW; 220 smb_makescred(&scred, ap->a_td, ap->a_cred); 221 error = smbfs_smb_open(np, accmode, &scred); 222 if (error) { 223 if (mode & FWRITE) 224 return EACCES; 225 accmode = SMB_AM_OPENREAD; 226 error = smbfs_smb_open(np, accmode, &scred); 227 } 228 if (!error) { 229 np->n_opencount++; 230 } 231 smbfs_attr_cacheremove(vp); 232 return error; 233 } 234 235 static int 236 smbfs_closel(struct vop_close_args *ap) 237 { 238 struct vnode *vp = ap->a_vp; 239 struct smbnode *np = VTOSMB(vp); 240 struct thread *td = ap->a_td; 241 struct smb_cred scred; 242 struct vattr vattr; 243 int error; 244 245 SMBVDEBUG("name=%s, pid=%d, c=%d\n",np->n_name, p->p_pid, np->n_opencount); 246 247 smb_makescred(&scred, td, proc0.p_ucred); 248 249 if (np->n_opencount == 0) { 250 if (vp->v_type != VDIR) 251 SMBERROR("Negative opencount\n"); 252 return 0; 253 } 254 np->n_opencount--; 255 if (vp->v_type == VDIR) { 256 if (np->n_opencount) 257 return 0; 258 if (np->n_dirseq) { 259 smbfs_findclose(np->n_dirseq, &scred); 260 np->n_dirseq = NULL; 261 } 262 error = 0; 263 } else { 264 error = smbfs_vinvalbuf(vp, V_SAVE, td, 1); 265 if (np->n_opencount) 266 return error; 267 VOP_GETATTR(vp, &vattr, td); 268 error = smbfs_smb_close(np->n_mount->sm_share, np->n_fid, 269 &np->n_mtime, &scred); 270 } 271 smbfs_attr_cacheremove(vp); 272 return error; 273 } 274 275 /* 276 * XXX: VOP_CLOSE() usually called without lock held which is suck. Here we 277 * do some heruistic to determine if vnode should be locked. 278 */ 279 static int 280 smbfs_close(ap) 281 struct vop_close_args /* { 282 struct vnodeop_desc *a_desc; 283 struct vnode *a_vp; 284 int a_fflag; 285 struct ucred *a_cred; 286 struct thread *a_td; 287 } */ *ap; 288 { 289 struct vnode *vp = ap->a_vp; 290 struct thread *td = ap->a_td; 291 int error, dolock; 292 lwkt_tokref vlock; 293 294 VI_LOCK(&vlock, vp); 295 dolock = (vp->v_flag & VXLOCK) == 0; 296 if (dolock) 297 vn_lock(vp, &vlock, LK_EXCLUSIVE | LK_RETRY | LK_INTERLOCK, td); 298 else 299 VI_UNLOCK(&vlock, vp); 300 error = smbfs_closel(ap); 301 if (dolock) 302 VOP_UNLOCK(vp, NULL, 0, td); 303 return error; 304 } 305 306 /* 307 * smbfs_getattr call from vfs. 308 */ 309 static int 310 smbfs_getattr(ap) 311 struct vop_getattr_args /* { 312 struct vnode *a_vp; 313 struct vattr *a_vap; 314 struct thread *a_td; 315 } */ *ap; 316 { 317 struct vnode *vp = ap->a_vp; 318 struct smbnode *np = VTOSMB(vp); 319 struct vattr *va=ap->a_vap; 320 struct smbfattr fattr; 321 struct smb_cred scred; 322 u_quad_t oldsize; 323 int error; 324 325 SMBVDEBUG("%lx: '%s' %d\n", (long)vp, np->n_name, (vp->v_flag & VROOT) != 0); 326 error = smbfs_attr_cachelookup(vp, va); 327 if (!error) 328 return 0; 329 SMBVDEBUG("not in the cache\n"); 330 smb_makescred(&scred, ap->a_td, proc0.p_ucred); 331 oldsize = np->n_size; 332 error = smbfs_smb_lookup(np, NULL, 0, &fattr, &scred); 333 if (error) { 334 SMBVDEBUG("error %d\n", error); 335 return error; 336 } 337 smbfs_attr_cacheenter(vp, &fattr); 338 smbfs_attr_cachelookup(vp, va); 339 if (np->n_opencount) 340 np->n_size = oldsize; 341 return 0; 342 } 343 344 static int 345 smbfs_setattr(ap) 346 struct vop_setattr_args /* { 347 struct vnode *a_vp; 348 struct vattr *a_vap; 349 struct ucred *a_cred; 350 struct thread *a_td; 351 } */ *ap; 352 { 353 struct vnode *vp = ap->a_vp; 354 struct smbnode *np = VTOSMB(vp); 355 struct vattr *vap = ap->a_vap; 356 struct timespec *mtime, *atime; 357 struct smb_cred scred; 358 struct smb_share *ssp = np->n_mount->sm_share; 359 struct smb_vc *vcp = SSTOVC(ssp); 360 u_quad_t tsize = 0; 361 int isreadonly, doclose, error = 0; 362 363 SMBVDEBUG("\n"); 364 if (vap->va_flags != VNOVAL) 365 return EOPNOTSUPP; 366 isreadonly = (vp->v_mount->mnt_flag & MNT_RDONLY); 367 /* 368 * Disallow write attempts if the filesystem is mounted read-only. 369 */ 370 if ((vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL || 371 vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL || 372 vap->va_mode != (mode_t)VNOVAL) && isreadonly) 373 return EROFS; 374 smb_makescred(&scred, ap->a_td, ap->a_cred); 375 if (vap->va_size != VNOVAL) { 376 switch (vp->v_type) { 377 case VDIR: 378 return EISDIR; 379 case VREG: 380 break; 381 default: 382 return EINVAL; 383 }; 384 if (isreadonly) 385 return EROFS; 386 doclose = 0; 387 vnode_pager_setsize(vp, (u_long)vap->va_size); 388 tsize = np->n_size; 389 np->n_size = vap->va_size; 390 if (np->n_opencount == 0) { 391 error = smbfs_smb_open(np, SMB_AM_OPENRW, &scred); 392 if (error == 0) 393 doclose = 1; 394 } 395 if (error == 0) 396 error = smbfs_smb_setfsize(np, vap->va_size, &scred); 397 if (doclose) 398 smbfs_smb_close(ssp, np->n_fid, NULL, &scred); 399 if (error) { 400 np->n_size = tsize; 401 vnode_pager_setsize(vp, (u_long)tsize); 402 return error; 403 } 404 } 405 mtime = atime = NULL; 406 if (vap->va_mtime.tv_sec != VNOVAL) 407 mtime = &vap->va_mtime; 408 if (vap->va_atime.tv_sec != VNOVAL) 409 atime = &vap->va_atime; 410 if (mtime != atime) { 411 if (ap->a_cred->cr_uid != VTOSMBFS(vp)->sm_args.uid && 412 (error = suser_cred(ap->a_cred, PRISON_ROOT)) && 413 ((vap->va_vaflags & VA_UTIMES_NULL) == 0 || 414 (error = VOP_ACCESS(vp, VWRITE, ap->a_cred, ap->a_td)))) 415 return (error); 416 #if 0 417 if (mtime == NULL) 418 mtime = &np->n_mtime; 419 if (atime == NULL) 420 atime = &np->n_atime; 421 #endif 422 /* 423 * If file is opened, then we can use handle based calls. 424 * If not, use path based ones. 425 */ 426 if (np->n_opencount == 0) { 427 if (vcp->vc_flags & SMBV_WIN95) { 428 error = VOP_OPEN(vp, FWRITE, ap->a_cred, ap->a_td); 429 if (!error) { 430 /* error = smbfs_smb_setfattrNT(np, 0, mtime, atime, &scred); 431 VOP_GETATTR(vp, &vattr, ap->a_td);*/ 432 if (mtime) 433 np->n_mtime = *mtime; 434 VOP_CLOSE(vp, FWRITE, ap->a_td); 435 } 436 } else if ((vcp->vc_sopt.sv_caps & SMB_CAP_NT_SMBS)) { 437 error = smbfs_smb_setptime2(np, mtime, atime, 0, &scred); 438 /* error = smbfs_smb_setpattrNT(np, 0, mtime, atime, &scred);*/ 439 } else if (SMB_DIALECT(vcp) >= SMB_DIALECT_LANMAN2_0) { 440 error = smbfs_smb_setptime2(np, mtime, atime, 0, &scred); 441 } else { 442 error = smbfs_smb_setpattr(np, 0, mtime, &scred); 443 } 444 } else { 445 if (vcp->vc_sopt.sv_caps & SMB_CAP_NT_SMBS) { 446 error = smbfs_smb_setfattrNT(np, 0, mtime, atime, &scred); 447 } else if (SMB_DIALECT(vcp) >= SMB_DIALECT_LANMAN1_0) { 448 error = smbfs_smb_setftime(np, mtime, atime, &scred); 449 } else { 450 /* 451 * I have no idea how to handle this for core 452 * level servers. The possible solution is to 453 * update mtime after file is closed. 454 */ 455 SMBERROR("can't update times on an opened file\n"); 456 } 457 } 458 } 459 /* 460 * Invalidate attribute cache in case if server doesn't set 461 * required attributes. 462 */ 463 smbfs_attr_cacheremove(vp); /* invalidate cache */ 464 VOP_GETATTR(vp, vap, ap->a_td); 465 np->n_mtime.tv_sec = vap->va_mtime.tv_sec; 466 return error; 467 } 468 /* 469 * smbfs_read call. 470 */ 471 static int 472 smbfs_read(ap) 473 struct vop_read_args /* { 474 struct vnode *a_vp; 475 struct uio *a_uio; 476 int a_ioflag; 477 struct ucred *a_cred; 478 } */ *ap; 479 { 480 struct vnode *vp = ap->a_vp; 481 struct uio *uio = ap->a_uio; 482 483 SMBVDEBUG("\n"); 484 if (vp->v_type != VREG && vp->v_type != VDIR) 485 return EPERM; 486 return smbfs_readvnode(vp, uio, ap->a_cred); 487 } 488 489 static int 490 smbfs_write(ap) 491 struct vop_write_args /* { 492 struct vnode *a_vp; 493 struct uio *a_uio; 494 int a_ioflag; 495 struct ucred *a_cred; 496 } */ *ap; 497 { 498 struct vnode *vp = ap->a_vp; 499 struct uio *uio = ap->a_uio; 500 501 SMBVDEBUG("%d,ofs=%d,sz=%d\n",vp->v_type, (int)uio->uio_offset, uio->uio_resid); 502 if (vp->v_type != VREG) 503 return (EPERM); 504 return smbfs_writevnode(vp, uio, ap->a_cred,ap->a_ioflag); 505 } 506 /* 507 * smbfs_create call 508 * Create a regular file. On entry the directory to contain the file being 509 * created is locked. We must release before we return. We must also free 510 * the pathname buffer pointed at by cnp->cn_pnbuf, always on error, or 511 * only if the SAVESTART bit in cn_flags is clear on success. 512 */ 513 static int 514 smbfs_create(ap) 515 struct vop_create_args /* { 516 struct vnode *a_dvp; 517 struct vnode **a_vpp; 518 struct componentname *a_cnp; 519 struct vattr *a_vap; 520 } */ *ap; 521 { 522 struct vnode *dvp = ap->a_dvp; 523 struct vattr *vap = ap->a_vap; 524 struct vnode **vpp=ap->a_vpp; 525 struct componentname *cnp = ap->a_cnp; 526 struct smbnode *dnp = VTOSMB(dvp); 527 struct vnode *vp; 528 struct vattr vattr; 529 struct smbfattr fattr; 530 struct smb_cred scred; 531 char *name = cnp->cn_nameptr; 532 int nmlen = cnp->cn_namelen; 533 int error; 534 535 536 SMBVDEBUG("\n"); 537 *vpp = NULL; 538 if (vap->va_type != VREG) 539 return EOPNOTSUPP; 540 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_td))) 541 return error; 542 smb_makescred(&scred, cnp->cn_td, cnp->cn_cred); 543 544 error = smbfs_smb_create(dnp, name, nmlen, &scred); 545 if (error) 546 return error; 547 error = smbfs_smb_lookup(dnp, name, nmlen, &fattr, &scred); 548 if (error) 549 return error; 550 error = smbfs_nget(VTOVFS(dvp), dvp, name, nmlen, &fattr, &vp); 551 if (error) 552 return error; 553 *vpp = vp; 554 if (cnp->cn_flags & CNP_MAKEENTRY) 555 cache_enter(dvp, NCPNULL, vp, cnp); 556 return error; 557 } 558 559 static int 560 smbfs_remove(ap) 561 struct vop_remove_args /* { 562 struct vnodeop_desc *a_desc; 563 struct vnode * a_dvp; 564 struct vnode * a_vp; 565 struct componentname * a_cnp; 566 } */ *ap; 567 { 568 struct vnode *vp = ap->a_vp; 569 /* struct vnode *dvp = ap->a_dvp;*/ 570 struct componentname *cnp = ap->a_cnp; 571 struct smbnode *np = VTOSMB(vp); 572 struct smb_cred scred; 573 int error; 574 575 if (vp->v_type == VDIR || np->n_opencount || vp->v_usecount != 1) 576 return EPERM; 577 smb_makescred(&scred, cnp->cn_td, cnp->cn_cred); 578 error = smbfs_smb_delete(np, &scred); 579 cache_purge(vp); 580 return error; 581 } 582 583 /* 584 * smbfs_file rename call 585 */ 586 static int 587 smbfs_rename(ap) 588 struct vop_rename_args /* { 589 struct vnode *a_fdvp; 590 struct vnode *a_fvp; 591 struct componentname *a_fcnp; 592 struct vnode *a_tdvp; 593 struct vnode *a_tvp; 594 struct componentname *a_tcnp; 595 } */ *ap; 596 { 597 struct vnode *fvp = ap->a_fvp; 598 struct vnode *tvp = ap->a_tvp; 599 struct vnode *fdvp = ap->a_fdvp; 600 struct vnode *tdvp = ap->a_tdvp; 601 struct componentname *tcnp = ap->a_tcnp; 602 /* struct componentname *fcnp = ap->a_fcnp;*/ 603 struct smb_cred scred; 604 u_int16_t flags = 6; 605 int error=0; 606 607 /* Check for cross-device rename */ 608 if ((fvp->v_mount != tdvp->v_mount) || 609 (tvp && (fvp->v_mount != tvp->v_mount))) { 610 error = EXDEV; 611 goto out; 612 } 613 614 if (tvp && tvp->v_usecount > 1) { 615 error = EBUSY; 616 goto out; 617 } 618 flags = 0x10; /* verify all writes */ 619 if (fvp->v_type == VDIR) { 620 flags |= 2; 621 } else if (fvp->v_type == VREG) { 622 flags |= 1; 623 } else { 624 error = EINVAL; 625 goto out; 626 } 627 smb_makescred(&scred, tcnp->cn_td, tcnp->cn_cred); 628 /* 629 * It seems that Samba doesn't implement SMB_COM_MOVE call... 630 */ 631 #ifdef notnow 632 if (SMB_DIALECT(SSTOCN(smp->sm_share)) >= SMB_DIALECT_LANMAN1_0) { 633 error = smbfs_smb_move(VTOSMB(fvp), VTOSMB(tdvp), 634 tcnp->cn_nameptr, tcnp->cn_namelen, flags, &scred); 635 } else 636 #endif 637 { 638 /* 639 * We have to do the work atomicaly 640 */ 641 if (tvp && tvp != fvp) { 642 error = smbfs_smb_delete(VTOSMB(tvp), &scred); 643 if (error) 644 goto out_cacherem; 645 } 646 error = smbfs_smb_rename(VTOSMB(fvp), VTOSMB(tdvp), 647 tcnp->cn_nameptr, tcnp->cn_namelen, &scred); 648 } 649 650 if (fvp->v_type == VDIR) { 651 if (tvp != NULL && tvp->v_type == VDIR) 652 cache_purge(tdvp); 653 cache_purge(fdvp); 654 } 655 656 out_cacherem: 657 smbfs_attr_cacheremove(fdvp); 658 smbfs_attr_cacheremove(tdvp); 659 out: 660 if (tdvp == tvp) 661 vrele(tdvp); 662 else 663 vput(tdvp); 664 if (tvp) 665 vput(tvp); 666 vrele(fdvp); 667 vrele(fvp); 668 #ifdef possible_mistake 669 vgone(fvp); 670 if (tvp) 671 vgone(tvp); 672 #endif 673 return error; 674 } 675 676 /* 677 * somtime it will come true... 678 */ 679 static int 680 smbfs_link(ap) 681 struct vop_link_args /* { 682 struct vnode *a_tdvp; 683 struct vnode *a_vp; 684 struct componentname *a_cnp; 685 } */ *ap; 686 { 687 return EOPNOTSUPP; 688 } 689 690 /* 691 * smbfs_symlink link create call. 692 * Sometime it will be functional... 693 */ 694 static int 695 smbfs_symlink(ap) 696 struct vop_symlink_args /* { 697 struct vnode *a_dvp; 698 struct vnode **a_vpp; 699 struct componentname *a_cnp; 700 struct vattr *a_vap; 701 char *a_target; 702 } */ *ap; 703 { 704 return EOPNOTSUPP; 705 } 706 707 static int 708 smbfs_mknod(ap) 709 struct vop_mknod_args /* { 710 } */ *ap; 711 { 712 return EOPNOTSUPP; 713 } 714 715 static int 716 smbfs_mkdir(ap) 717 struct vop_mkdir_args /* { 718 struct vnode *a_dvp; 719 struct vnode **a_vpp; 720 struct componentname *a_cnp; 721 struct vattr *a_vap; 722 } */ *ap; 723 { 724 struct vnode *dvp = ap->a_dvp; 725 /* struct vattr *vap = ap->a_vap;*/ 726 struct vnode *vp; 727 struct componentname *cnp = ap->a_cnp; 728 struct smbnode *dnp = VTOSMB(dvp); 729 struct vattr vattr; 730 struct smb_cred scred; 731 struct smbfattr fattr; 732 char *name = cnp->cn_nameptr; 733 int len = cnp->cn_namelen; 734 int error; 735 736 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_td))) { 737 return error; 738 } 739 if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.')))) 740 return EEXIST; 741 smb_makescred(&scred, cnp->cn_td, cnp->cn_cred); 742 error = smbfs_smb_mkdir(dnp, name, len, &scred); 743 if (error) 744 return error; 745 error = smbfs_smb_lookup(dnp, name, len, &fattr, &scred); 746 if (error) 747 return error; 748 error = smbfs_nget(VTOVFS(dvp), dvp, name, len, &fattr, &vp); 749 if (error) 750 return error; 751 *ap->a_vpp = vp; 752 return 0; 753 } 754 755 /* 756 * smbfs_remove directory call 757 */ 758 static int 759 smbfs_rmdir(ap) 760 struct vop_rmdir_args /* { 761 struct vnode *a_dvp; 762 struct vnode *a_vp; 763 struct componentname *a_cnp; 764 } */ *ap; 765 { 766 struct vnode *vp = ap->a_vp; 767 struct vnode *dvp = ap->a_dvp; 768 struct componentname *cnp = ap->a_cnp; 769 /* struct smbmount *smp = VTOSMBFS(vp);*/ 770 struct smbnode *dnp = VTOSMB(dvp); 771 struct smbnode *np = VTOSMB(vp); 772 struct smb_cred scred; 773 int error; 774 775 if (dvp == vp) 776 return EINVAL; 777 778 smb_makescred(&scred, cnp->cn_td, cnp->cn_cred); 779 error = smbfs_smb_rmdir(np, &scred); 780 dnp->n_flag |= NMODIFIED; 781 smbfs_attr_cacheremove(dvp); 782 /* cache_purge(dvp);*/ 783 cache_purge(vp); 784 return error; 785 } 786 787 /* 788 * smbfs_readdir call 789 */ 790 static int 791 smbfs_readdir(ap) 792 struct vop_readdir_args /* { 793 struct vnode *a_vp; 794 struct uio *a_uio; 795 struct ucred *a_cred; 796 int *a_eofflag; 797 u_long *a_cookies; 798 int a_ncookies; 799 } */ *ap; 800 { 801 struct vnode *vp = ap->a_vp; 802 struct uio *uio = ap->a_uio; 803 int error; 804 805 if (vp->v_type != VDIR) 806 return (EPERM); 807 #ifdef notnow 808 if (ap->a_ncookies) { 809 printf("smbfs_readdir: no support for cookies now..."); 810 return (EOPNOTSUPP); 811 } 812 #endif 813 error = smbfs_readvnode(vp, uio, ap->a_cred); 814 return error; 815 } 816 817 /* ARGSUSED */ 818 static int 819 smbfs_fsync(ap) 820 struct vop_fsync_args /* { 821 struct vnodeop_desc *a_desc; 822 struct vnode *a_vp; 823 struct ucred *a_cred; 824 int a_waitfor; 825 struct thread *a_td; 826 } */ *ap; 827 { 828 /* return (smb_flush(ap->a_vp, ap->a_cred, ap->a_waitfor, ap->a_td, 1));*/ 829 return (0); 830 } 831 832 static 833 int smbfs_print (ap) 834 struct vop_print_args /* { 835 struct vnode *a_vp; 836 } */ *ap; 837 { 838 struct vnode *vp = ap->a_vp; 839 struct smbnode *np = VTOSMB(vp); 840 841 if (np == NULL) { 842 printf("no smbnode data\n"); 843 return (0); 844 } 845 printf("tag VT_SMBFS, name = %s, parent = %p, opencount = %d", 846 np->n_name, np->n_parent ? np->n_parent : NULL, 847 np->n_opencount); 848 lockmgr_printinfo(&np->n_lock); 849 printf("\n"); 850 return (0); 851 } 852 853 static int 854 smbfs_pathconf (ap) 855 struct vop_pathconf_args /* { 856 struct vnode *vp; 857 int name; 858 register_t *retval; 859 } */ *ap; 860 { 861 struct smbmount *smp = VFSTOSMBFS(VTOVFS(ap->a_vp)); 862 struct smb_vc *vcp = SSTOVC(smp->sm_share); 863 register_t *retval = ap->a_retval; 864 int error = 0; 865 866 switch (ap->a_name) { 867 case _PC_LINK_MAX: 868 *retval = 0; 869 break; 870 case _PC_NAME_MAX: 871 *retval = (vcp->vc_hflags2 & SMB_FLAGS2_KNOWS_LONG_NAMES) ? 255 : 12; 872 break; 873 case _PC_PATH_MAX: 874 *retval = 800; /* XXX: a correct one ? */ 875 break; 876 default: 877 error = EINVAL; 878 } 879 return error; 880 } 881 882 static int 883 smbfs_strategy (ap) 884 struct vop_strategy_args /* { 885 struct buf *a_bp 886 } */ *ap; 887 { 888 struct buf *bp=ap->a_bp; 889 struct thread *td = NULL; 890 int error = 0; 891 892 SMBVDEBUG("\n"); 893 if (bp->b_flags & B_PHYS) 894 panic("smbfs physio"); 895 if ((bp->b_flags & B_ASYNC) == 0) 896 td = curthread; /* XXX */ 897 898 if ((bp->b_flags & B_ASYNC) == 0 ) 899 error = smbfs_doio(bp, proc0.p_ucred, td); 900 return error; 901 } 902 903 static int 904 smbfs_bmap(ap) 905 struct vop_bmap_args /* { 906 struct vnode *a_vp; 907 daddr_t a_bn; 908 struct vnode **a_vpp; 909 daddr_t *a_bnp; 910 int *a_runp; 911 int *a_runb; 912 } */ *ap; 913 { 914 struct vnode *vp = ap->a_vp; 915 916 if (ap->a_vpp != NULL) 917 *ap->a_vpp = vp; 918 if (ap->a_bnp != NULL) 919 *ap->a_bnp = ap->a_bn * btodb(vp->v_mount->mnt_stat.f_iosize); 920 if (ap->a_runp != NULL) 921 *ap->a_runp = 0; 922 if (ap->a_runb != NULL) 923 *ap->a_runb = 0; 924 return (0); 925 } 926 927 int 928 smbfs_ioctl(ap) 929 struct vop_ioctl_args /* { 930 struct vnode *a_vp; 931 u_long a_command; 932 caddr_t a_data; 933 int fflag; 934 struct ucred *cred; 935 struct proc *p; 936 } */ *ap; 937 { 938 return EINVAL; 939 } 940 941 static char smbfs_atl[] = "rhsvda"; 942 static int 943 smbfs_getextattr(struct vop_getextattr_args *ap) 944 /* { 945 IN struct vnode *a_vp; 946 IN char *a_name; 947 INOUT struct uio *a_uio; 948 IN struct ucred *a_cred; 949 IN struct thread *a_td; 950 }; 951 */ 952 { 953 struct vnode *vp = ap->a_vp; 954 struct thread *td = ap->a_td; 955 struct ucred *cred = ap->a_cred; 956 struct uio *uio = ap->a_uio; 957 const char *name = ap->a_name; 958 struct smbnode *np = VTOSMB(vp); 959 struct vattr vattr; 960 char buf[10]; 961 int i, attr, error; 962 963 error = VOP_ACCESS(vp, VREAD, cred, td); 964 if (error) 965 return error; 966 error = VOP_GETATTR(vp, &vattr, td); 967 if (error) 968 return error; 969 if (strcmp(name, "dosattr") == 0) { 970 attr = np->n_dosattr; 971 for (i = 0; i < 6; i++, attr >>= 1) 972 buf[i] = (attr & 1) ? smbfs_atl[i] : '-'; 973 buf[i] = 0; 974 error = uiomove(buf, i, uio); 975 976 } else 977 error = EINVAL; 978 return error; 979 } 980 981 /* 982 * Since we expected to support F_GETLK (and SMB protocol has no such function), 983 * it is necessary to use lf_advlock(). It would be nice if this function had 984 * a callback mechanism because it will help to improve a level of consistency. 985 */ 986 int 987 smbfs_advlock(ap) 988 struct vop_advlock_args /* { 989 struct vnode *a_vp; 990 caddr_t a_id; 991 int a_op; 992 struct flock *a_fl; 993 int a_flags; 994 } */ *ap; 995 { 996 struct vnode *vp = ap->a_vp; 997 struct smbnode *np = VTOSMB(vp); 998 struct flock *fl = ap->a_fl; 999 caddr_t id = (caddr_t)1 /* ap->a_id */; 1000 /* int flags = ap->a_flags;*/ 1001 struct thread *td = curthread; /* XXX */ 1002 struct smb_cred scred; 1003 off_t start, end, size; 1004 int error, lkop; 1005 1006 if (vp->v_type == VDIR) { 1007 /* 1008 * SMB protocol have no support for directory locking. 1009 * Although locks can be processed on local machine, I don't 1010 * think that this is a good idea, because some programs 1011 * can work wrong assuming directory is locked. So, we just 1012 * return 'operation not supported 1013 */ 1014 return EOPNOTSUPP; 1015 } 1016 size = np->n_size; 1017 switch (fl->l_whence) { 1018 case SEEK_SET: 1019 case SEEK_CUR: 1020 start = fl->l_start; 1021 break; 1022 case SEEK_END: 1023 start = fl->l_start + size; 1024 default: 1025 return EINVAL; 1026 } 1027 if (start < 0) 1028 return EINVAL; 1029 if (fl->l_len == 0) 1030 end = -1; 1031 else { 1032 end = start + fl->l_len - 1; 1033 if (end < start) 1034 return EINVAL; 1035 } 1036 smb_makescred(&scred, td, td->td_proc ? td->td_proc->p_ucred : NULL); 1037 switch (ap->a_op) { 1038 case F_SETLK: 1039 switch (fl->l_type) { 1040 case F_WRLCK: 1041 lkop = SMB_LOCK_EXCL; 1042 break; 1043 case F_RDLCK: 1044 lkop = SMB_LOCK_SHARED; 1045 break; 1046 case F_UNLCK: 1047 lkop = SMB_LOCK_RELEASE; 1048 break; 1049 default: 1050 return EINVAL; 1051 } 1052 error = lf_advlock(ap, &np->n_lockf, size); 1053 if (error) 1054 break; 1055 lkop = SMB_LOCK_EXCL; 1056 error = smbfs_smb_lock(np, lkop, id, start, end, &scred); 1057 if (error) { 1058 ap->a_op = F_UNLCK; 1059 lf_advlock(ap, &np->n_lockf, size); 1060 } 1061 break; 1062 case F_UNLCK: 1063 lf_advlock(ap, &np->n_lockf, size); 1064 error = smbfs_smb_lock(np, SMB_LOCK_RELEASE, id, start, end, &scred); 1065 break; 1066 case F_GETLK: 1067 error = lf_advlock(ap, &np->n_lockf, size); 1068 break; 1069 default: 1070 return EINVAL; 1071 } 1072 return error; 1073 } 1074 1075 static int 1076 smbfs_pathcheck(struct smbmount *smp, const char *name, int nmlen, int nameiop) 1077 { 1078 static const char *badchars = "*/\[]:<>=;?"; 1079 static const char *badchars83 = " +|,"; 1080 const char *cp; 1081 int i, error; 1082 1083 if (nameiop == NAMEI_LOOKUP) 1084 return 0; 1085 error = ENOENT; 1086 if (SMB_DIALECT(SSTOVC(smp->sm_share)) < SMB_DIALECT_LANMAN2_0) { 1087 /* 1088 * Name should conform 8.3 format 1089 */ 1090 if (nmlen > 12) 1091 return ENAMETOOLONG; 1092 cp = index(name, '.'); 1093 if (cp == NULL) 1094 return error; 1095 if (cp == name || (cp - name) > 8) 1096 return error; 1097 cp = index(cp + 1, '.'); 1098 if (cp != NULL) 1099 return error; 1100 for (cp = name, i = 0; i < nmlen; i++, cp++) 1101 if (index(badchars83, *cp) != NULL) 1102 return error; 1103 } 1104 for (cp = name, i = 0; i < nmlen; i++, cp++) 1105 if (index(badchars, *cp) != NULL) 1106 return error; 1107 return 0; 1108 } 1109 1110 /* 1111 * Things go even weird without fixed inode numbers... 1112 */ 1113 int 1114 smbfs_lookup(ap) 1115 struct vop_lookup_args /* { 1116 struct vnodeop_desc *a_desc; 1117 struct vnode *a_dvp; 1118 struct vnode **a_vpp; 1119 struct componentname *a_cnp; 1120 } */ *ap; 1121 { 1122 struct componentname *cnp = ap->a_cnp; 1123 struct thread *td = cnp->cn_td; 1124 struct vnode *dvp = ap->a_dvp; 1125 struct vnode **vpp = ap->a_vpp; 1126 struct vnode *vp; 1127 struct smbmount *smp; 1128 struct mount *mp = dvp->v_mount; 1129 struct smbnode *dnp; 1130 struct smbfattr fattr, *fap; 1131 struct smb_cred scred; 1132 char *name = cnp->cn_nameptr; 1133 int flags = cnp->cn_flags; 1134 int nameiop = cnp->cn_nameiop; 1135 int nmlen = cnp->cn_namelen; 1136 int lockparent, wantparent, error, islastcn, isdot; 1137 1138 SMBVDEBUG("\n"); 1139 cnp->cn_flags &= ~CNP_PDIRUNLOCK; 1140 if (dvp->v_type != VDIR) 1141 return ENOTDIR; 1142 if ((flags & CNP_ISDOTDOT) && (dvp->v_flag & VROOT)) { 1143 SMBFSERR("invalid '..'\n"); 1144 return EIO; 1145 } 1146 #ifdef SMB_VNODE_DEBUG 1147 { 1148 char *cp, c; 1149 1150 cp = name + nmlen; 1151 c = *cp; 1152 *cp = 0; 1153 SMBVDEBUG("%d '%s' in '%s' id=d\n", nameiop, name, 1154 VTOSMB(dvp)->n_name); 1155 *cp = c; 1156 } 1157 #endif 1158 islastcn = flags & CNP_ISLASTCN; 1159 if (islastcn && (mp->mnt_flag & MNT_RDONLY) && (nameiop != NAMEI_LOOKUP)) 1160 return EROFS; 1161 if ((error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, td)) != 0) 1162 return error; 1163 lockparent = flags & CNP_LOCKPARENT; 1164 wantparent = flags & (CNP_LOCKPARENT | CNP_WANTPARENT); 1165 smp = VFSTOSMBFS(mp); 1166 dnp = VTOSMB(dvp); 1167 isdot = (nmlen == 1 && name[0] == '.'); 1168 1169 error = smbfs_pathcheck(smp, cnp->cn_nameptr, cnp->cn_namelen, nameiop); 1170 1171 if (error) 1172 return ENOENT; 1173 1174 error = cache_lookup(dvp, NCPNULL, vpp, NCPPNULL, cnp); 1175 SMBVDEBUG("cache_lookup returned %d\n", error); 1176 if (error > 0) 1177 return error; 1178 if (error) { /* name was found */ 1179 struct vattr vattr; 1180 int vpid; 1181 1182 vp = *vpp; 1183 vpid = vp->v_id; 1184 if (dvp == vp) { /* lookup on current */ 1185 vref(vp); 1186 error = 0; 1187 SMBVDEBUG("cached '.'\n"); 1188 } else if (flags & CNP_ISDOTDOT) { 1189 VOP_UNLOCK(dvp, NULL, 0, td); /* unlock parent */ 1190 cnp->cn_flags |= CNP_PDIRUNLOCK; 1191 error = vget(vp, NULL, LK_EXCLUSIVE, td); 1192 if (!error && lockparent && islastcn) { 1193 error = vn_lock(dvp, NULL, LK_EXCLUSIVE, td); 1194 if (error == 0) 1195 cnp->cn_flags &= ~CNP_PDIRUNLOCK; 1196 } 1197 } else { 1198 error = vget(vp, NULL, LK_EXCLUSIVE, td); 1199 if (!lockparent || error || !islastcn) { 1200 VOP_UNLOCK(dvp, NULL, 0, td); 1201 cnp->cn_flags |= CNP_PDIRUNLOCK; 1202 } 1203 } 1204 if (!error) { 1205 if (vpid == vp->v_id) { 1206 if (!VOP_GETATTR(vp, &vattr, td) 1207 /* && vattr.va_ctime.tv_sec == VTOSMB(vp)->n_ctime*/) { 1208 if (nameiop != NAMEI_LOOKUP && islastcn) 1209 cnp->cn_flags |= CNP_SAVENAME; 1210 SMBVDEBUG("use cached vnode\n"); 1211 return (0); 1212 } 1213 cache_purge(vp); 1214 } 1215 vput(vp); 1216 if (lockparent && dvp != vp && islastcn) 1217 VOP_UNLOCK(dvp, NULL, 0, td); 1218 } 1219 error = vn_lock(dvp, NULL, LK_EXCLUSIVE, td); 1220 *vpp = NULLVP; 1221 if (error) { 1222 cnp->cn_flags |= CNP_PDIRUNLOCK; 1223 return (error); 1224 } 1225 cnp->cn_flags &= ~CNP_PDIRUNLOCK; 1226 } 1227 /* 1228 * entry is not in the cache or has been expired 1229 */ 1230 error = 0; 1231 *vpp = NULLVP; 1232 smb_makescred(&scred, td, cnp->cn_cred); 1233 fap = &fattr; 1234 if (flags & CNP_ISDOTDOT) { 1235 error = smbfs_smb_lookup(VTOSMB(dnp->n_parent), NULL, 0, fap, 1236 &scred); 1237 SMBVDEBUG("result of dotdot lookup: %d\n", error); 1238 } else { 1239 fap = &fattr; 1240 error = smbfs_smb_lookup(dnp, name, nmlen, fap, &scred); 1241 /* if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.')*/ 1242 SMBVDEBUG("result of smbfs_smb_lookup: %d\n", error); 1243 } 1244 if (error && error != ENOENT) 1245 return error; 1246 if (error) { /* entry not found */ 1247 /* 1248 * Handle RENAME or CREATE case... 1249 */ 1250 if ((nameiop == NAMEI_CREATE || nameiop == NAMEI_RENAME) && wantparent && islastcn) { 1251 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, td); 1252 if (error) 1253 return error; 1254 cnp->cn_flags |= CNP_SAVENAME; 1255 if (!lockparent) { 1256 VOP_UNLOCK(dvp, NULL, 0, td); 1257 cnp->cn_flags |= CNP_PDIRUNLOCK; 1258 } 1259 return (EJUSTRETURN); 1260 } 1261 return ENOENT; 1262 }/* else { 1263 SMBVDEBUG("Found entry %s with id=%d\n", fap->entryName, fap->dirEntNum); 1264 }*/ 1265 /* 1266 * handle DELETE case ... 1267 */ 1268 if (nameiop == NAMEI_DELETE && islastcn) { /* delete last component */ 1269 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, td); 1270 if (error) 1271 return error; 1272 if (isdot) { 1273 VREF(dvp); 1274 *vpp = dvp; 1275 return 0; 1276 } 1277 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp); 1278 if (error) 1279 return error; 1280 *vpp = vp; 1281 cnp->cn_flags |= CNP_SAVENAME; 1282 if (!lockparent) { 1283 VOP_UNLOCK(dvp, NULL, 0, td); 1284 cnp->cn_flags |= CNP_PDIRUNLOCK; 1285 } 1286 return 0; 1287 } 1288 if (nameiop == NAMEI_RENAME && islastcn && wantparent) { 1289 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, td); 1290 if (error) 1291 return error; 1292 if (isdot) 1293 return EISDIR; 1294 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp); 1295 if (error) 1296 return error; 1297 *vpp = vp; 1298 cnp->cn_flags |= CNP_SAVENAME; 1299 if (!lockparent) { 1300 VOP_UNLOCK(dvp, NULL, 0, td); 1301 cnp->cn_flags |= CNP_PDIRUNLOCK; 1302 } 1303 return 0; 1304 } 1305 if (flags & CNP_ISDOTDOT) { 1306 VOP_UNLOCK(dvp, NULL, 0, td); 1307 error = smbfs_nget(mp, dvp, name, nmlen, NULL, &vp); 1308 if (error) { 1309 vn_lock(dvp, NULL, LK_EXCLUSIVE | LK_RETRY, td); 1310 return error; 1311 } 1312 if (lockparent && islastcn) { 1313 error = vn_lock(dvp, NULL, LK_EXCLUSIVE, td); 1314 if (error) { 1315 cnp->cn_flags |= CNP_PDIRUNLOCK; 1316 vput(vp); 1317 return error; 1318 } 1319 } 1320 *vpp = vp; 1321 } else if (isdot) { 1322 vref(dvp); 1323 *vpp = dvp; 1324 } else { 1325 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp); 1326 if (error) 1327 return error; 1328 *vpp = vp; 1329 SMBVDEBUG("lookup: getnewvp!\n"); 1330 if (!lockparent || !islastcn) { 1331 VOP_UNLOCK(dvp, NULL, 0, td); 1332 cnp->cn_flags |= CNP_PDIRUNLOCK; 1333 } 1334 } 1335 if ((cnp->cn_flags & CNP_MAKEENTRY)/* && !islastcn*/) { 1336 /* VTOSMB(*vpp)->n_ctime = VTOSMB(*vpp)->n_vattr.va_ctime.tv_sec;*/ 1337 cache_enter(dvp, NCPNULL, *vpp, cnp); 1338 } 1339 return 0; 1340 } 1341