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 1.27 2006/04/01 20:46:53 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_old_create_args *); 65 static int smbfs_mknod(struct vop_old_mknod_args *); 66 static int smbfs_open(struct vop_open_args *); 67 static int smbfs_closel(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_old_remove_args *); 75 static int smbfs_link(struct vop_old_link_args *); 76 static int smbfs_lookup(struct vop_old_lookup_args *); 77 static int smbfs_rename(struct vop_old_rename_args *); 78 static int smbfs_mkdir(struct vop_old_mkdir_args *); 79 static int smbfs_rmdir(struct vop_old_rmdir_args *); 80 static int smbfs_symlink(struct vop_old_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 struct vnodeopv_entry_desc smbfs_vnodeop_entries[] = { 90 { &vop_default_desc, vop_defaultop }, 91 { &vop_access_desc, (vnodeopv_entry_t) smbfs_access }, 92 { &vop_advlock_desc, (vnodeopv_entry_t) smbfs_advlock }, 93 { &vop_bmap_desc, (vnodeopv_entry_t) smbfs_bmap }, 94 { &vop_close_desc, (vnodeopv_entry_t) smbfs_closel }, 95 { &vop_old_create_desc, (vnodeopv_entry_t) smbfs_create }, 96 { &vop_fsync_desc, (vnodeopv_entry_t) smbfs_fsync }, 97 { &vop_getattr_desc, (vnodeopv_entry_t) smbfs_getattr }, 98 { &vop_getpages_desc, (vnodeopv_entry_t) smbfs_getpages }, 99 { &vop_inactive_desc, (vnodeopv_entry_t) smbfs_inactive }, 100 { &vop_ioctl_desc, (vnodeopv_entry_t) smbfs_ioctl }, 101 { &vop_islocked_desc, (vnodeopv_entry_t) vop_stdislocked }, 102 { &vop_old_link_desc, (vnodeopv_entry_t) smbfs_link }, 103 { &vop_lock_desc, (vnodeopv_entry_t) vop_stdlock }, 104 { &vop_old_lookup_desc, (vnodeopv_entry_t) smbfs_lookup }, 105 { &vop_old_mkdir_desc, (vnodeopv_entry_t) smbfs_mkdir }, 106 { &vop_old_mknod_desc, (vnodeopv_entry_t) smbfs_mknod }, 107 { &vop_open_desc, (vnodeopv_entry_t) smbfs_open }, 108 { &vop_pathconf_desc, (vnodeopv_entry_t) smbfs_pathconf }, 109 { &vop_print_desc, (vnodeopv_entry_t) smbfs_print }, 110 { &vop_putpages_desc, (vnodeopv_entry_t) smbfs_putpages }, 111 { &vop_read_desc, (vnodeopv_entry_t) smbfs_read }, 112 { &vop_readdir_desc, (vnodeopv_entry_t) smbfs_readdir }, 113 { &vop_reclaim_desc, (vnodeopv_entry_t) smbfs_reclaim }, 114 { &vop_old_remove_desc, (vnodeopv_entry_t) smbfs_remove }, 115 { &vop_old_rename_desc, (vnodeopv_entry_t) smbfs_rename }, 116 { &vop_old_rmdir_desc, (vnodeopv_entry_t) smbfs_rmdir }, 117 { &vop_setattr_desc, (vnodeopv_entry_t) smbfs_setattr }, 118 { &vop_strategy_desc, (vnodeopv_entry_t) smbfs_strategy }, 119 { &vop_old_symlink_desc, (vnodeopv_entry_t) smbfs_symlink }, 120 { &vop_unlock_desc, (vnodeopv_entry_t) vop_stdunlock }, 121 { &vop_write_desc, (vnodeopv_entry_t) smbfs_write }, 122 { &vop_getextattr_desc, (vnodeopv_entry_t) smbfs_getextattr }, 123 /* { &vop_setextattr_desc, (vnodeopv_entry_t) smbfs_setextattr },*/ 124 { NULL, NULL } 125 }; 126 127 /* 128 * smbfs_access(struct vnode *a_vp, int a_mode, struct ucred *a_cred, 129 * struct thread *a_td) 130 */ 131 static int 132 smbfs_access(struct vop_access_args *ap) 133 { 134 struct vnode *vp = ap->a_vp; 135 struct ucred *cred = ap->a_cred; 136 u_int mode = ap->a_mode; 137 struct smbmount *smp = VTOSMBFS(vp); 138 int error = 0; 139 140 SMBVDEBUG("\n"); 141 if ((mode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY)) { 142 switch (vp->v_type) { 143 case VREG: case VDIR: case VLNK: 144 return EROFS; 145 default: 146 break; 147 } 148 } 149 if (cred->cr_uid == 0) 150 return 0; 151 if (cred->cr_uid != smp->sm_args.uid) { 152 mode >>= 3; 153 if (!groupmember(smp->sm_args.gid, cred)) 154 mode >>= 3; 155 } 156 error = (((vp->v_type == VREG) ? smp->sm_args.file_mode : smp->sm_args.dir_mode) & mode) == mode ? 0 : EACCES; 157 return error; 158 } 159 160 /* 161 * smbfs_open(struct vnode *a_vp, int a_mode, struct ucred *a_cred, 162 * struct thread *a_td) 163 */ 164 /* ARGSUSED */ 165 static int 166 smbfs_open(struct vop_open_args *ap) 167 { 168 struct vnode *vp = ap->a_vp; 169 struct smbnode *np = VTOSMB(vp); 170 struct smb_cred scred; 171 struct vattr vattr; 172 int mode = ap->a_mode; 173 int error, accmode; 174 175 SMBVDEBUG("%s,%d\n", np->n_name, np->n_opencount); 176 if (vp->v_type != VREG && vp->v_type != VDIR) { 177 SMBFSERR("open eacces vtype=%d\n", vp->v_type); 178 return EACCES; 179 } 180 if (vp->v_type == VDIR) { 181 if (np->n_opencount == 0) 182 np->n_cached_cred = crhold(ap->a_cred); 183 np->n_opencount++; 184 return (vop_stdopen(ap)); 185 } 186 if (np->n_flag & NMODIFIED) { 187 if ((error = smbfs_vinvalbuf(vp, V_SAVE, ap->a_td, 1)) == EINTR) 188 return error; 189 smbfs_attr_cacheremove(vp); 190 error = VOP_GETATTR(vp, &vattr, ap->a_td); 191 if (error) 192 return error; 193 np->n_mtime.tv_sec = vattr.va_mtime.tv_sec; 194 } else { 195 error = VOP_GETATTR(vp, &vattr, ap->a_td); 196 if (error) 197 return error; 198 if (np->n_mtime.tv_sec != vattr.va_mtime.tv_sec) { 199 error = smbfs_vinvalbuf(vp, V_SAVE, ap->a_td, 1); 200 if (error == EINTR) 201 return error; 202 np->n_mtime.tv_sec = vattr.va_mtime.tv_sec; 203 } 204 } 205 if (np->n_opencount) { 206 np->n_opencount++; 207 return (vop_stdopen(ap)); 208 } 209 accmode = SMB_AM_OPENREAD; 210 if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0) 211 accmode = 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 accmode = SMB_AM_OPENREAD; 218 error = smbfs_smb_open(np, accmode, &scred); 219 } 220 if (!error) { 221 np->n_cached_cred = crhold(ap->a_cred); 222 np->n_opencount++; 223 } 224 smbfs_attr_cacheremove(vp); 225 if (error == 0) 226 vop_stdopen(ap); 227 return error; 228 } 229 230 static int 231 smbfs_closel(struct vop_close_args *ap) 232 { 233 struct vnode *vp = ap->a_vp; 234 struct smbnode *np = VTOSMB(vp); 235 struct thread *td = ap->a_td; 236 struct smb_cred scred; 237 struct vattr vattr; 238 int error; 239 240 SMBVDEBUG("name=%s, pid=%d, c=%d\n",np->n_name, p->p_pid, np->n_opencount); 241 242 smb_makescred(&scred, td, proc0.p_ucred); 243 error = 0; 244 245 if (np->n_opencount == 0) { 246 if (vp->v_type != VDIR) 247 SMBERROR("Negative opencount\n"); 248 goto done; 249 } 250 np->n_opencount--; 251 if (vp->v_type == VDIR) { 252 if (np->n_opencount) 253 goto done; 254 if (np->n_dirseq) { 255 smbfs_findclose(np->n_dirseq, &scred); 256 np->n_dirseq = NULL; 257 } 258 } else { 259 error = smbfs_vinvalbuf(vp, V_SAVE, td, 1); 260 if (np->n_opencount) 261 goto done; 262 VOP_GETATTR(vp, &vattr, td); 263 error = smbfs_smb_close(np->n_mount->sm_share, np->n_fid, 264 &np->n_mtime, &scred); 265 } 266 crfree(np->n_cached_cred); 267 np->n_cached_cred = NULL; 268 smbfs_attr_cacheremove(vp); 269 done: 270 vop_stdclose(ap); 271 return error; 272 } 273 274 /* 275 * smbfs_getattr call from vfs. 276 * 277 * smbfs_getattr(struct vnode *a_vp, struct vattr *a_vap, struct thread *a_td) 278 */ 279 static int 280 smbfs_getattr(struct vop_getattr_args *ap) 281 { 282 struct vnode *vp = ap->a_vp; 283 struct smbnode *np = VTOSMB(vp); 284 struct vattr *va=ap->a_vap; 285 struct smbfattr fattr; 286 struct smb_cred scred; 287 u_quad_t oldsize; 288 int error; 289 290 SMBVDEBUG("%lx: '%s' %d\n", (long)vp, np->n_name, (vp->v_flag & VROOT) != 0); 291 error = smbfs_attr_cachelookup(vp, va); 292 if (!error) 293 return 0; 294 SMBVDEBUG("not in the cache\n"); 295 smb_makescred(&scred, ap->a_td, proc0.p_ucred); 296 oldsize = np->n_size; 297 error = smbfs_smb_lookup(np, NULL, 0, &fattr, &scred); 298 if (error) { 299 SMBVDEBUG("error %d\n", error); 300 return error; 301 } 302 smbfs_attr_cacheenter(vp, &fattr); 303 smbfs_attr_cachelookup(vp, va); 304 if (np->n_opencount) 305 np->n_size = oldsize; 306 return 0; 307 } 308 309 /* 310 * smbfs_setattr(struct vnode *a_vp, struct vattr *a_vap, struct ucred *a_cred, 311 * struct thread *a_td) 312 */ 313 static int 314 smbfs_setattr(struct vop_setattr_args *ap) 315 { 316 struct vnode *vp = ap->a_vp; 317 struct smbnode *np = VTOSMB(vp); 318 struct vattr *vap = ap->a_vap; 319 struct timespec *mtime, *atime; 320 struct smb_cred scred; 321 struct smb_share *ssp = np->n_mount->sm_share; 322 struct smb_vc *vcp = SSTOVC(ssp); 323 u_quad_t tsize = 0; 324 int isreadonly, doclose, error = 0; 325 326 SMBVDEBUG("\n"); 327 if (vap->va_flags != VNOVAL) 328 return EOPNOTSUPP; 329 isreadonly = (vp->v_mount->mnt_flag & MNT_RDONLY); 330 /* 331 * Disallow write attempts if the filesystem is mounted read-only. 332 */ 333 if ((vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL || 334 vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL || 335 vap->va_mode != (mode_t)VNOVAL) && isreadonly) 336 return EROFS; 337 smb_makescred(&scred, ap->a_td, ap->a_cred); 338 if (vap->va_size != VNOVAL) { 339 switch (vp->v_type) { 340 case VDIR: 341 return EISDIR; 342 case VREG: 343 break; 344 default: 345 return EINVAL; 346 }; 347 if (isreadonly) 348 return EROFS; 349 doclose = 0; 350 vnode_pager_setsize(vp, (u_long)vap->va_size); 351 tsize = np->n_size; 352 np->n_size = vap->va_size; 353 if (np->n_opencount == 0) { 354 error = smbfs_smb_open(np, SMB_AM_OPENRW, &scred); 355 if (error == 0) 356 doclose = 1; 357 } 358 if (error == 0) 359 error = smbfs_smb_setfsize(np, vap->va_size, &scred); 360 if (doclose) 361 smbfs_smb_close(ssp, np->n_fid, NULL, &scred); 362 if (error) { 363 np->n_size = tsize; 364 vnode_pager_setsize(vp, (u_long)tsize); 365 return error; 366 } 367 } 368 mtime = atime = NULL; 369 if (vap->va_mtime.tv_sec != VNOVAL) 370 mtime = &vap->va_mtime; 371 if (vap->va_atime.tv_sec != VNOVAL) 372 atime = &vap->va_atime; 373 if (mtime != atime) { 374 if (ap->a_cred->cr_uid != VTOSMBFS(vp)->sm_args.uid && 375 (error = suser_cred(ap->a_cred, PRISON_ROOT)) && 376 ((vap->va_vaflags & VA_UTIMES_NULL) == 0 || 377 (error = VOP_ACCESS(vp, VWRITE, ap->a_cred, ap->a_td)))) 378 return (error); 379 #if 0 380 if (mtime == NULL) 381 mtime = &np->n_mtime; 382 if (atime == NULL) 383 atime = &np->n_atime; 384 #endif 385 /* 386 * If file is opened, then we can use handle based calls. 387 * If not, use path based ones. 388 */ 389 if (np->n_opencount == 0) { 390 if (vcp->vc_flags & SMBV_WIN95) { 391 error = VOP_OPEN(vp, FWRITE, ap->a_cred, NULL, ap->a_td); 392 if (!error) { 393 /* error = smbfs_smb_setfattrNT(np, 0, mtime, atime, &scred); 394 VOP_GETATTR(vp, &vattr, ap->a_td);*/ 395 if (mtime) 396 np->n_mtime = *mtime; 397 VOP_CLOSE(vp, FWRITE, ap->a_td); 398 } 399 } else if ((vcp->vc_sopt.sv_caps & SMB_CAP_NT_SMBS)) { 400 error = smbfs_smb_setptime2(np, mtime, atime, 0, &scred); 401 /* error = smbfs_smb_setpattrNT(np, 0, mtime, atime, &scred);*/ 402 } else if (SMB_DIALECT(vcp) >= SMB_DIALECT_LANMAN2_0) { 403 error = smbfs_smb_setptime2(np, mtime, atime, 0, &scred); 404 } else { 405 error = smbfs_smb_setpattr(np, 0, mtime, &scred); 406 } 407 } else { 408 if (vcp->vc_sopt.sv_caps & SMB_CAP_NT_SMBS) { 409 error = smbfs_smb_setfattrNT(np, 0, mtime, atime, &scred); 410 } else if (SMB_DIALECT(vcp) >= SMB_DIALECT_LANMAN1_0) { 411 error = smbfs_smb_setftime(np, mtime, atime, &scred); 412 } else { 413 /* 414 * I have no idea how to handle this for core 415 * level servers. The possible solution is to 416 * update mtime after file is closed. 417 */ 418 SMBERROR("can't update times on an opened file\n"); 419 } 420 } 421 } 422 /* 423 * Invalidate attribute cache in case if server doesn't set 424 * required attributes. 425 */ 426 smbfs_attr_cacheremove(vp); /* invalidate cache */ 427 VOP_GETATTR(vp, vap, ap->a_td); 428 np->n_mtime.tv_sec = vap->va_mtime.tv_sec; 429 return error; 430 } 431 /* 432 * smbfs_read call. 433 * 434 * smbfs_read(struct vnode *a_vp, struct uio *a_uio, int a_ioflag, 435 * struct ucred *a_cred) 436 */ 437 static int 438 smbfs_read(struct vop_read_args *ap) 439 { 440 struct vnode *vp = ap->a_vp; 441 struct uio *uio = ap->a_uio; 442 443 SMBVDEBUG("\n"); 444 if (vp->v_type != VREG && vp->v_type != VDIR) 445 return EPERM; 446 return smbfs_readvnode(vp, uio, ap->a_cred); 447 } 448 449 /* 450 * smbfs_write(struct vnode *a_vp, struct uio *a_uio, int a_ioflag, 451 * struct ucred *a_cred) 452 */ 453 static int 454 smbfs_write(struct vop_write_args *ap) 455 { 456 struct vnode *vp = ap->a_vp; 457 struct uio *uio = ap->a_uio; 458 459 SMBVDEBUG("%d,ofs=%d,sz=%d\n",vp->v_type, (int)uio->uio_offset, uio->uio_resid); 460 if (vp->v_type != VREG) 461 return (EPERM); 462 return smbfs_writevnode(vp, uio, ap->a_cred,ap->a_ioflag); 463 } 464 /* 465 * smbfs_create call 466 * Create a regular file. On entry the directory to contain the file being 467 * created is locked. We must release before we return. 468 * 469 * smbfs_create(struct vnode *a_dvp, struct vnode **a_vpp, 470 * struct componentname *a_cnp, struct vattr *a_vap) 471 */ 472 static int 473 smbfs_create(struct vop_old_create_args *ap) 474 { 475 struct vnode *dvp = ap->a_dvp; 476 struct vattr *vap = ap->a_vap; 477 struct vnode **vpp=ap->a_vpp; 478 struct componentname *cnp = ap->a_cnp; 479 struct smbnode *dnp = VTOSMB(dvp); 480 struct vnode *vp; 481 struct vattr vattr; 482 struct smbfattr fattr; 483 struct smb_cred scred; 484 char *name = cnp->cn_nameptr; 485 int nmlen = cnp->cn_namelen; 486 int error; 487 488 489 SMBVDEBUG("\n"); 490 *vpp = NULL; 491 if (vap->va_type != VREG) 492 return EOPNOTSUPP; 493 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_td))) 494 return error; 495 smb_makescred(&scred, cnp->cn_td, cnp->cn_cred); 496 497 error = smbfs_smb_create(dnp, name, nmlen, &scred); 498 if (error) 499 return error; 500 error = smbfs_smb_lookup(dnp, name, nmlen, &fattr, &scred); 501 if (error) 502 return error; 503 error = smbfs_nget(VTOVFS(dvp), dvp, name, nmlen, &fattr, &vp); 504 if (error) 505 return error; 506 *vpp = vp; 507 return error; 508 } 509 510 /* 511 * smbfs_remove(struct vnodeop_desc *a_desc, struct vnode *a_dvp, 512 * struct vnode *a_vp, struct componentname *a_cnp) 513 */ 514 static int 515 smbfs_remove(struct vop_old_remove_args *ap) 516 { 517 struct vnode *vp = ap->a_vp; 518 /* struct vnode *dvp = ap->a_dvp;*/ 519 struct componentname *cnp = ap->a_cnp; 520 struct smbnode *np = VTOSMB(vp); 521 struct smb_cred scred; 522 int error; 523 524 if (vp->v_type == VDIR || np->n_opencount || vp->v_usecount != 1) 525 return EPERM; 526 smb_makescred(&scred, cnp->cn_td, cnp->cn_cred); 527 error = smbfs_smb_delete(np, &scred); 528 return error; 529 } 530 531 /* 532 * smbfs_file rename call 533 * 534 * smbfs_rename(struct vnode *a_fdvp, struct vnode *a_fvp, 535 * struct componentname *a_fcnp, struct vnode *a_tdvp, 536 * struct vnode *a_tvp, struct componentname *a_tcnp) 537 */ 538 static int 539 smbfs_rename(struct vop_old_rename_args *ap) 540 { 541 struct vnode *fvp = ap->a_fvp; 542 struct vnode *tvp = ap->a_tvp; 543 struct vnode *fdvp = ap->a_fdvp; 544 struct vnode *tdvp = ap->a_tdvp; 545 struct componentname *tcnp = ap->a_tcnp; 546 /* struct componentname *fcnp = ap->a_fcnp;*/ 547 struct smb_cred scred; 548 u_int16_t flags = 6; 549 int error=0; 550 551 /* Check for cross-device rename */ 552 if ((fvp->v_mount != tdvp->v_mount) || 553 (tvp && (fvp->v_mount != tvp->v_mount))) { 554 error = EXDEV; 555 goto out; 556 } 557 558 if (tvp && tvp->v_usecount > 1) { 559 error = EBUSY; 560 goto out; 561 } 562 flags = 0x10; /* verify all writes */ 563 if (fvp->v_type == VDIR) { 564 flags |= 2; 565 } else if (fvp->v_type == VREG) { 566 flags |= 1; 567 } else { 568 error = EINVAL; 569 goto out; 570 } 571 smb_makescred(&scred, tcnp->cn_td, tcnp->cn_cred); 572 /* 573 * It seems that Samba doesn't implement SMB_COM_MOVE call... 574 */ 575 #ifdef notnow 576 if (SMB_DIALECT(SSTOCN(smp->sm_share)) >= SMB_DIALECT_LANMAN1_0) { 577 error = smbfs_smb_move(VTOSMB(fvp), VTOSMB(tdvp), 578 tcnp->cn_nameptr, tcnp->cn_namelen, flags, &scred); 579 } else 580 #endif 581 { 582 /* 583 * We have to do the work atomicaly 584 */ 585 if (tvp && tvp != fvp) { 586 error = smbfs_smb_delete(VTOSMB(tvp), &scred); 587 if (error) 588 goto out_cacherem; 589 } 590 error = smbfs_smb_rename(VTOSMB(fvp), VTOSMB(tdvp), 591 tcnp->cn_nameptr, tcnp->cn_namelen, &scred); 592 } 593 594 out_cacherem: 595 smbfs_attr_cacheremove(fdvp); 596 smbfs_attr_cacheremove(tdvp); 597 out: 598 if (tdvp == tvp) 599 vrele(tdvp); 600 else 601 vput(tdvp); 602 if (tvp) 603 vput(tvp); 604 vrele(fdvp); 605 vrele(fvp); 606 #ifdef possible_mistake 607 #error x 608 vgone(fvp); 609 if (tvp) 610 vgone(tvp); 611 #endif 612 return error; 613 } 614 615 /* 616 * somtime it will come true... 617 * 618 * smbfs_link(struct vnode *a_tdvp, struct vnode *a_vp, 619 * struct componentname *a_cnp) 620 */ 621 static int 622 smbfs_link(struct vop_old_link_args *ap) 623 { 624 return EOPNOTSUPP; 625 } 626 627 /* 628 * smbfs_symlink link create call. 629 * Sometime it will be functional... 630 * 631 * smbfs_symlink(struct vnode *a_dvp, struct vnode **a_vpp, 632 * struct componentname *a_cnp, struct vattr *a_vap, 633 * char *a_target) 634 */ 635 static int 636 smbfs_symlink(struct vop_old_symlink_args *ap) 637 { 638 return EOPNOTSUPP; 639 } 640 641 static int 642 smbfs_mknod(struct vop_old_mknod_args *ap) 643 { 644 return EOPNOTSUPP; 645 } 646 647 /* 648 * smbfs_mkdir(struct vnode *a_dvp, struct vnode **a_vpp, 649 * struct componentname *a_cnp, struct vattr *a_vap) 650 */ 651 static int 652 smbfs_mkdir(struct vop_old_mkdir_args *ap) 653 { 654 struct vnode *dvp = ap->a_dvp; 655 /* struct vattr *vap = ap->a_vap;*/ 656 struct vnode *vp; 657 struct componentname *cnp = ap->a_cnp; 658 struct smbnode *dnp = VTOSMB(dvp); 659 struct vattr vattr; 660 struct smb_cred scred; 661 struct smbfattr fattr; 662 char *name = cnp->cn_nameptr; 663 int len = cnp->cn_namelen; 664 int error; 665 666 if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_td))) { 667 return error; 668 } 669 if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.')))) 670 return EEXIST; 671 smb_makescred(&scred, cnp->cn_td, cnp->cn_cred); 672 error = smbfs_smb_mkdir(dnp, name, len, &scred); 673 if (error) 674 return error; 675 error = smbfs_smb_lookup(dnp, name, len, &fattr, &scred); 676 if (error) 677 return error; 678 error = smbfs_nget(VTOVFS(dvp), dvp, name, len, &fattr, &vp); 679 if (error) 680 return error; 681 *ap->a_vpp = vp; 682 return 0; 683 } 684 685 /* 686 * smbfs_remove directory call 687 * 688 * smbfs_rmdir(struct vnode *a_dvp, struct vnode *a_vp, 689 * struct componentname *a_cnp) 690 */ 691 static int 692 smbfs_rmdir(struct vop_old_rmdir_args *ap) 693 { 694 struct vnode *vp = ap->a_vp; 695 struct vnode *dvp = ap->a_dvp; 696 struct componentname *cnp = ap->a_cnp; 697 /* struct smbmount *smp = VTOSMBFS(vp);*/ 698 struct smbnode *dnp = VTOSMB(dvp); 699 struct smbnode *np = VTOSMB(vp); 700 struct smb_cred scred; 701 int error; 702 703 if (dvp == vp) 704 return EINVAL; 705 706 smb_makescred(&scred, cnp->cn_td, cnp->cn_cred); 707 error = smbfs_smb_rmdir(np, &scred); 708 dnp->n_flag |= NMODIFIED; 709 smbfs_attr_cacheremove(dvp); 710 return error; 711 } 712 713 /* 714 * smbfs_readdir call 715 * 716 * smbfs_readdir(struct vnode *a_vp, struct uio *a_uio, struct ucred *a_cred, 717 * int *a_eofflag, u_long *a_cookies, int a_ncookies) 718 */ 719 static int 720 smbfs_readdir(struct vop_readdir_args *ap) 721 { 722 struct vnode *vp = ap->a_vp; 723 struct uio *uio = ap->a_uio; 724 int error; 725 726 if (vp->v_type != VDIR) 727 return (EPERM); 728 #ifdef notnow 729 if (ap->a_ncookies) { 730 printf("smbfs_readdir: no support for cookies now..."); 731 return (EOPNOTSUPP); 732 } 733 #endif 734 error = smbfs_readvnode(vp, uio, ap->a_cred); 735 return error; 736 } 737 738 /* 739 * smbfs_fsync(struct vnodeop_desc *a_desc, struct vnode *a_vp, 740 * struct ucred *a_cred, int a_waitfor, struct thread *a_td) 741 */ 742 /* ARGSUSED */ 743 static int 744 smbfs_fsync(struct vop_fsync_args *ap) 745 { 746 /* return (smb_flush(ap->a_vp, ap->a_cred, ap->a_waitfor, ap->a_td, 1));*/ 747 return (0); 748 } 749 750 /* 751 * smbfs_print(struct vnode *a_vp) 752 */ 753 static int 754 smbfs_print(struct vop_print_args *ap) 755 { 756 struct vnode *vp = ap->a_vp; 757 struct smbnode *np = VTOSMB(vp); 758 759 if (np == NULL) { 760 printf("no smbnode data\n"); 761 return (0); 762 } 763 printf("tag VT_SMBFS, name = %s, parent = %p, opencount = %d", 764 np->n_name, np->n_parent ? np->n_parent : NULL, 765 np->n_opencount); 766 lockmgr_printinfo(&vp->v_lock); 767 printf("\n"); 768 return (0); 769 } 770 771 /* 772 * smbfs_pathconf(struct vnode *vp, int name, register_t *retval) 773 */ 774 static int 775 smbfs_pathconf(struct vop_pathconf_args *ap) 776 { 777 struct smbmount *smp = VFSTOSMBFS(VTOVFS(ap->a_vp)); 778 struct smb_vc *vcp = SSTOVC(smp->sm_share); 779 register_t *retval = ap->a_retval; 780 int error = 0; 781 782 switch (ap->a_name) { 783 case _PC_LINK_MAX: 784 *retval = 0; 785 break; 786 case _PC_NAME_MAX: 787 *retval = (vcp->vc_hflags2 & SMB_FLAGS2_KNOWS_LONG_NAMES) ? 255 : 12; 788 break; 789 case _PC_PATH_MAX: 790 *retval = 800; /* XXX: a correct one ? */ 791 break; 792 default: 793 error = EINVAL; 794 } 795 return error; 796 } 797 798 /* 799 * smbfs_strategy(struct vnode *a_vp, struct bio *a_bio) 800 */ 801 static int 802 smbfs_strategy(struct vop_strategy_args *ap) 803 { 804 struct bio *bio = ap->a_bio; 805 struct buf *bp = bio->bio_buf; 806 struct thread *td = NULL; 807 int error = 0; 808 809 SMBVDEBUG("\n"); 810 if (bp->b_flags & B_PHYS) 811 panic("smbfs physio"); 812 if ((bp->b_flags & B_ASYNC) == 0) 813 td = curthread; /* XXX */ 814 815 if ((bp->b_flags & B_ASYNC) == 0 ) 816 error = smbfs_doio(ap->a_vp, bio, proc0.p_ucred, td); 817 return error; 818 } 819 820 /* 821 * smbfs_bmap(struct vnode *a_vp, off_t a_loffset, struct vnode **a_vpp, 822 * off_t *a_doffsetp, int *a_runp, int *a_runb) 823 */ 824 static int 825 smbfs_bmap(struct vop_bmap_args *ap) 826 { 827 struct vnode *vp = ap->a_vp; 828 829 if (ap->a_vpp != NULL) 830 *ap->a_vpp = vp; 831 if (ap->a_doffsetp != NULL) 832 *ap->a_doffsetp = ap->a_loffset; 833 if (ap->a_runp != NULL) 834 *ap->a_runp = 0; 835 if (ap->a_runb != NULL) 836 *ap->a_runb = 0; 837 return (0); 838 } 839 840 /* 841 * smbfs_ioctl(struct vnode *a_vp, u_long a_command, caddr_t a_data, 842 * int fflag, struct ucred *cred, struct proc *p) 843 */ 844 int 845 smbfs_ioctl(struct vop_ioctl_args *ap) 846 { 847 return EINVAL; 848 } 849 850 static char smbfs_atl[] = "rhsvda"; 851 static int 852 smbfs_getextattr(struct vop_getextattr_args *ap) 853 /* { 854 IN struct vnode *a_vp; 855 IN char *a_name; 856 INOUT struct uio *a_uio; 857 IN struct ucred *a_cred; 858 IN struct thread *a_td; 859 }; 860 */ 861 { 862 struct vnode *vp = ap->a_vp; 863 struct thread *td = ap->a_td; 864 struct ucred *cred = ap->a_cred; 865 struct uio *uio = ap->a_uio; 866 const char *name = ap->a_name; 867 struct smbnode *np = VTOSMB(vp); 868 struct vattr vattr; 869 char buf[10]; 870 int i, attr, error; 871 872 error = VOP_ACCESS(vp, VREAD, cred, td); 873 if (error) 874 return error; 875 error = VOP_GETATTR(vp, &vattr, td); 876 if (error) 877 return error; 878 if (strcmp(name, "dosattr") == 0) { 879 attr = np->n_dosattr; 880 for (i = 0; i < 6; i++, attr >>= 1) 881 buf[i] = (attr & 1) ? smbfs_atl[i] : '-'; 882 buf[i] = 0; 883 error = uiomove(buf, i, uio); 884 885 } else 886 error = EINVAL; 887 return error; 888 } 889 890 /* 891 * Since we expected to support F_GETLK (and SMB protocol has no such function), 892 * it is necessary to use lf_advlock(). It would be nice if this function had 893 * a callback mechanism because it will help to improve a level of consistency. 894 * 895 * smbfs_advlock(struct vnode *a_vp, caddr_t a_id, int a_op, 896 * struct flock *a_fl, int a_flags) 897 */ 898 int 899 smbfs_advlock(struct vop_advlock_args *ap) 900 { 901 struct vnode *vp = ap->a_vp; 902 struct smbnode *np = VTOSMB(vp); 903 struct flock *fl = ap->a_fl; 904 caddr_t id = (caddr_t)1 /* ap->a_id */; 905 /* int flags = ap->a_flags;*/ 906 struct thread *td = curthread; /* XXX */ 907 struct smb_cred scred; 908 off_t start, end, size; 909 int error, lkop; 910 911 if (vp->v_type == VDIR) { 912 /* 913 * SMB protocol have no support for directory locking. 914 * Although locks can be processed on local machine, I don't 915 * think that this is a good idea, because some programs 916 * can work wrong assuming directory is locked. So, we just 917 * return 'operation not supported 918 */ 919 return EOPNOTSUPP; 920 } 921 size = np->n_size; 922 switch (fl->l_whence) { 923 case SEEK_SET: 924 case SEEK_CUR: 925 start = fl->l_start; 926 break; 927 case SEEK_END: 928 start = fl->l_start + size; 929 default: 930 return EINVAL; 931 } 932 if (start < 0) 933 return EINVAL; 934 if (fl->l_len == 0) 935 end = -1; 936 else { 937 end = start + fl->l_len - 1; 938 if (end < start) 939 return EINVAL; 940 } 941 smb_makescred(&scred, td, td->td_proc ? td->td_proc->p_ucred : NULL); 942 switch (ap->a_op) { 943 case F_SETLK: 944 switch (fl->l_type) { 945 case F_WRLCK: 946 lkop = SMB_LOCK_EXCL; 947 break; 948 case F_RDLCK: 949 lkop = SMB_LOCK_SHARED; 950 break; 951 case F_UNLCK: 952 lkop = SMB_LOCK_RELEASE; 953 break; 954 default: 955 return EINVAL; 956 } 957 error = lf_advlock(ap, &np->n_lockf, size); 958 if (error) 959 break; 960 lkop = SMB_LOCK_EXCL; 961 error = smbfs_smb_lock(np, lkop, id, start, end, &scred); 962 if (error) { 963 ap->a_op = F_UNLCK; 964 lf_advlock(ap, &np->n_lockf, size); 965 } 966 break; 967 case F_UNLCK: 968 lf_advlock(ap, &np->n_lockf, size); 969 error = smbfs_smb_lock(np, SMB_LOCK_RELEASE, id, start, end, &scred); 970 break; 971 case F_GETLK: 972 error = lf_advlock(ap, &np->n_lockf, size); 973 break; 974 default: 975 return EINVAL; 976 } 977 return error; 978 } 979 980 static int 981 smbfs_pathcheck(struct smbmount *smp, const char *name, int nmlen, int nameiop) 982 { 983 static const char *badchars = "*/\[]:<>=;?"; 984 static const char *badchars83 = " +|,"; 985 const char *cp; 986 int i, error; 987 988 if (nameiop == NAMEI_LOOKUP) 989 return 0; 990 error = ENOENT; 991 if (SMB_DIALECT(SSTOVC(smp->sm_share)) < SMB_DIALECT_LANMAN2_0) { 992 /* 993 * Name should conform 8.3 format 994 */ 995 if (nmlen > 12) 996 return ENAMETOOLONG; 997 cp = index(name, '.'); 998 if (cp == NULL) 999 return error; 1000 if (cp == name || (cp - name) > 8) 1001 return error; 1002 cp = index(cp + 1, '.'); 1003 if (cp != NULL) 1004 return error; 1005 for (cp = name, i = 0; i < nmlen; i++, cp++) 1006 if (index(badchars83, *cp) != NULL) 1007 return error; 1008 } 1009 for (cp = name, i = 0; i < nmlen; i++, cp++) 1010 if (index(badchars, *cp) != NULL) 1011 return error; 1012 return 0; 1013 } 1014 1015 /* 1016 * Things go even weird without fixed inode numbers... 1017 * 1018 * smbfs_lookup(struct vnodeop_desc *a_desc, struct vnode *a_dvp, 1019 * struct vnode **a_vpp, struct componentname *a_cnp) 1020 */ 1021 int 1022 smbfs_lookup(struct vop_old_lookup_args *ap) 1023 { 1024 struct componentname *cnp = ap->a_cnp; 1025 struct thread *td = cnp->cn_td; 1026 struct vnode *dvp = ap->a_dvp; 1027 struct vnode **vpp = ap->a_vpp; 1028 struct vnode *vp; 1029 struct smbmount *smp; 1030 struct mount *mp = dvp->v_mount; 1031 struct smbnode *dnp; 1032 struct smbfattr fattr, *fap; 1033 struct smb_cred scred; 1034 char *name = cnp->cn_nameptr; 1035 int flags = cnp->cn_flags; 1036 int nameiop = cnp->cn_nameiop; 1037 int nmlen = cnp->cn_namelen; 1038 int lockparent, wantparent, error, isdot; 1039 1040 SMBVDEBUG("\n"); 1041 cnp->cn_flags &= ~CNP_PDIRUNLOCK; 1042 if (dvp->v_type != VDIR) 1043 return ENOTDIR; 1044 if ((flags & CNP_ISDOTDOT) && (dvp->v_flag & VROOT)) { 1045 SMBFSERR("invalid '..'\n"); 1046 return EIO; 1047 } 1048 #ifdef SMB_VNODE_DEBUG 1049 { 1050 char *cp, c; 1051 1052 cp = name + nmlen; 1053 c = *cp; 1054 *cp = 0; 1055 SMBVDEBUG("%d '%s' in '%s' id=d\n", nameiop, name, 1056 VTOSMB(dvp)->n_name); 1057 *cp = c; 1058 } 1059 #endif 1060 if ((mp->mnt_flag & MNT_RDONLY) && nameiop != NAMEI_LOOKUP) 1061 return EROFS; 1062 if ((error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, td)) != 0) 1063 return error; 1064 lockparent = flags & CNP_LOCKPARENT; 1065 wantparent = flags & (CNP_LOCKPARENT | CNP_WANTPARENT); 1066 smp = VFSTOSMBFS(mp); 1067 dnp = VTOSMB(dvp); 1068 isdot = (nmlen == 1 && name[0] == '.'); 1069 1070 error = smbfs_pathcheck(smp, cnp->cn_nameptr, cnp->cn_namelen, nameiop); 1071 1072 if (error) 1073 return ENOENT; 1074 1075 error = 0; 1076 *vpp = NULLVP; 1077 smb_makescred(&scred, td, cnp->cn_cred); 1078 fap = &fattr; 1079 if (flags & CNP_ISDOTDOT) { 1080 error = smbfs_smb_lookup(VTOSMB(dnp->n_parent), NULL, 0, fap, 1081 &scred); 1082 SMBVDEBUG("result of dotdot lookup: %d\n", error); 1083 } else { 1084 fap = &fattr; 1085 error = smbfs_smb_lookup(dnp, name, nmlen, fap, &scred); 1086 /* if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.')*/ 1087 SMBVDEBUG("result of smbfs_smb_lookup: %d\n", error); 1088 } 1089 if (error && error != ENOENT) 1090 return error; 1091 if (error) { /* entry not found */ 1092 /* 1093 * Handle RENAME or CREATE case... 1094 */ 1095 if ((nameiop == NAMEI_CREATE || nameiop == NAMEI_RENAME) && wantparent) { 1096 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, td); 1097 if (error) 1098 return error; 1099 if (!lockparent) { 1100 VOP_UNLOCK(dvp, 0, td); 1101 cnp->cn_flags |= CNP_PDIRUNLOCK; 1102 } 1103 return (EJUSTRETURN); 1104 } 1105 return ENOENT; 1106 }/* else { 1107 SMBVDEBUG("Found entry %s with id=%d\n", fap->entryName, fap->dirEntNum); 1108 }*/ 1109 /* 1110 * handle DELETE case ... 1111 */ 1112 if (nameiop == NAMEI_DELETE) { /* delete last component */ 1113 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, td); 1114 if (error) 1115 return error; 1116 if (isdot) { 1117 vref(dvp); 1118 *vpp = dvp; 1119 return 0; 1120 } 1121 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp); 1122 if (error) 1123 return error; 1124 *vpp = vp; 1125 if (!lockparent) { 1126 VOP_UNLOCK(dvp, 0, td); 1127 cnp->cn_flags |= CNP_PDIRUNLOCK; 1128 } 1129 return 0; 1130 } 1131 if (nameiop == NAMEI_RENAME && wantparent) { 1132 error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, td); 1133 if (error) 1134 return error; 1135 if (isdot) 1136 return EISDIR; 1137 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp); 1138 if (error) 1139 return error; 1140 *vpp = vp; 1141 if (!lockparent) { 1142 VOP_UNLOCK(dvp, 0, td); 1143 cnp->cn_flags |= CNP_PDIRUNLOCK; 1144 } 1145 return 0; 1146 } 1147 if (flags & CNP_ISDOTDOT) { 1148 VOP_UNLOCK(dvp, 0, td); 1149 error = smbfs_nget(mp, dvp, name, nmlen, NULL, &vp); 1150 if (error) { 1151 vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY, td); 1152 return error; 1153 } 1154 if (lockparent) { 1155 error = vn_lock(dvp, LK_EXCLUSIVE, td); 1156 if (error) { 1157 cnp->cn_flags |= CNP_PDIRUNLOCK; 1158 vput(vp); 1159 return error; 1160 } 1161 } 1162 *vpp = vp; 1163 } else if (isdot) { 1164 vref(dvp); 1165 *vpp = dvp; 1166 } else { 1167 error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp); 1168 if (error) 1169 return error; 1170 *vpp = vp; 1171 SMBVDEBUG("lookup: getnewvp!\n"); 1172 if (!lockparent) { 1173 VOP_UNLOCK(dvp, 0, td); 1174 cnp->cn_flags |= CNP_PDIRUNLOCK; 1175 } 1176 } 1177 return 0; 1178 } 1179