1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. 23 * Copyright 2013 Nexenta Systems, Inc. All rights reserved. 24 */ 25 26 #include <sys/types.h> 27 #include <sys/stat.h> 28 #include <sys/uio.h> 29 #include <sys/statvfs.h> 30 #include <sys/vnode.h> 31 #include <sys/thread.h> 32 #include <sys/pathname.h> 33 #include <sys/cred.h> 34 #include <sys/extdirent.h> 35 #include <sys/nbmlock.h> 36 #include <sys/share.h> 37 #include <sys/fcntl.h> 38 #include <nfs/lm.h> 39 40 #include <smbsrv/smb_kproto.h> 41 #include <smbsrv/string.h> 42 #include <smbsrv/smb_vops.h> 43 #include <smbsrv/smb_fsops.h> 44 45 /* 46 * CATIA support 47 * 48 * CATIA V4 is a UNIX product and uses characters in filenames that 49 * are considered invalid by Windows. CATIA V5 is available on both 50 * UNIX and Windows. Thus, as CATIA customers migrate from V4 to V5, 51 * some V4 files could become inaccessible to windows clients if the 52 * filename contains the characters that are considered illegal in 53 * Windows. In order to address this issue an optional character 54 * translation is applied to filenames at the smb_vop interface. 55 * 56 * Character Translation Table 57 * ---------------------------------- 58 * Unix-char (v4) | Windows-char (v5) 59 * ---------------------------------- 60 * * | 0x00a4 Currency Sign 61 * | | 0x00a6 Broken Bar 62 * " | 0x00a8 Diaeresis 63 * < | 0x00ab Left-Pointing Double Angle Quotation Mark 64 * > | 0x00bb Right-Pointing Double Angle Quotation Mark 65 * ? | 0x00bf Inverted Question mark 66 * : | 0x00f7 Division Sign 67 * / | 0x00f8 Latin Small Letter o with stroke 68 * \ | 0x00ff Latin Small Letter Y with Diaeresis 69 * 70 * 71 * Two lookup tables are used to perform the character translation: 72 * 73 * smb_catia_v5_lookup - provides the mapping between UNIX ASCII (v4) 74 * characters and equivalent or translated wide characters. 75 * It is indexed by the decimal value of the ASCII character (0-127). 76 * 77 * smb_catia_v4_lookup - provides the mapping between wide characters 78 * in the range from 0x00A4 to 0x00FF and their UNIX (v4) equivalent 79 * (in wide character format). It is indexed by the decimal value of 80 * the wide character (164-255) with an offset of -164. 81 * If this translation produces a filename containing a '/' create, mkdir 82 * or rename (to the '/' name) operations will not be permitted. It is 83 * not valid to create a filename with a '/' in it. However, if such a 84 * file already exists other operations (e.g, lookup, delete, rename) 85 * are permitted on it. 86 */ 87 88 /* number of characters mapped */ 89 #define SMB_CATIA_NUM_MAPS 9 90 91 /* Windows Characters used in special character mapping */ 92 #define SMB_CATIA_WIN_CURRENCY 0x00a4 93 #define SMB_CATIA_WIN_BROKEN_BAR 0x00a6 94 #define SMB_CATIA_WIN_DIAERESIS 0x00a8 95 #define SMB_CATIA_WIN_LEFT_ANGLE 0x00ab 96 #define SMB_CATIA_WIN_RIGHT_ANGLE 0x00bb 97 #define SMB_CATIA_WIN_INVERTED_QUESTION 0x00bf 98 #define SMB_CATIA_WIN_DIVISION 0x00f7 99 #define SMB_CATIA_WIN_LATIN_O 0x00f8 100 #define SMB_CATIA_WIN_LATIN_Y 0x00ff 101 102 #define SMB_CATIA_V4_LOOKUP_LOW SMB_CATIA_WIN_CURRENCY 103 #define SMB_CATIA_V4_LOOKUP_UPPER SMB_CATIA_WIN_LATIN_Y 104 #define SMB_CATIA_V4_LOOKUP_MAX \ 105 (SMB_CATIA_V4_LOOKUP_UPPER - SMB_CATIA_V4_LOOKUP_LOW + 1) 106 #define SMB_CATIA_V5_LOOKUP_MAX 0x0080 107 108 typedef struct smb_catia_map 109 { 110 unsigned char unixchar; /* v4 */ 111 smb_wchar_t winchar; /* v5 */ 112 } smb_catia_map_t; 113 114 smb_catia_map_t const catia_maps[SMB_CATIA_NUM_MAPS] = 115 { 116 {'"', SMB_CATIA_WIN_DIAERESIS}, 117 {'*', SMB_CATIA_WIN_CURRENCY}, 118 {':', SMB_CATIA_WIN_DIVISION}, 119 {'<', SMB_CATIA_WIN_LEFT_ANGLE}, 120 {'>', SMB_CATIA_WIN_RIGHT_ANGLE}, 121 {'?', SMB_CATIA_WIN_INVERTED_QUESTION}, 122 {'\\', SMB_CATIA_WIN_LATIN_Y}, 123 {'/', SMB_CATIA_WIN_LATIN_O}, 124 {'|', SMB_CATIA_WIN_BROKEN_BAR} 125 }; 126 127 static smb_wchar_t smb_catia_v5_lookup[SMB_CATIA_V5_LOOKUP_MAX]; 128 static smb_wchar_t smb_catia_v4_lookup[SMB_CATIA_V4_LOOKUP_MAX]; 129 130 static void smb_vop_setup_xvattr(smb_attr_t *smb_attr, xvattr_t *xvattr); 131 static void smb_sa_to_va_mask(uint_t sa_mask, uint_t *va_maskp); 132 static callb_cpr_t *smb_lock_frlock_callback(flk_cb_when_t, void *); 133 static void smb_vop_catia_init(); 134 135 extern sysid_t lm_alloc_sysidt(); 136 137 #define SMB_AT_MAX 16 138 static const uint_t smb_attrmap[SMB_AT_MAX] = { 139 0, 140 AT_TYPE, 141 AT_MODE, 142 AT_UID, 143 AT_GID, 144 AT_FSID, 145 AT_NODEID, 146 AT_NLINK, 147 AT_SIZE, 148 AT_ATIME, 149 AT_MTIME, 150 AT_CTIME, 151 AT_RDEV, 152 AT_BLKSIZE, 153 AT_NBLOCKS, 154 AT_SEQ 155 }; 156 157 static boolean_t smb_vop_initialized = B_FALSE; 158 caller_context_t smb_ct; 159 160 /* 161 * smb_vop_init 162 * 163 * This function is not multi-thread safe. The caller must make sure only one 164 * thread makes the call. 165 */ 166 int 167 smb_vop_init(void) 168 { 169 if (smb_vop_initialized) 170 return (0); 171 /* 172 * The caller_context will be used primarily for range locking. 173 * Since the CIFS server is mapping its locks to POSIX locks, 174 * only one pid is used for operations originating from the 175 * CIFS server (to represent CIFS in the VOP_FRLOCK routines). 176 * 177 * XXX: Should smb_ct be per-zone? 178 */ 179 smb_ct.cc_sysid = lm_alloc_sysidt(); 180 if (smb_ct.cc_sysid == LM_NOSYSID) 181 return (ENOMEM); 182 183 smb_ct.cc_caller_id = fs_new_caller_id(); 184 smb_ct.cc_pid = IGN_PID; 185 smb_ct.cc_flags = 0; 186 smb_vop_catia_init(); 187 188 smb_vop_initialized = B_TRUE; 189 return (0); 190 } 191 192 /* 193 * smb_vop_fini 194 * 195 * This function is not multi-thread safe. The caller must make sure only one 196 * thread makes the call. 197 */ 198 void 199 smb_vop_fini(void) 200 { 201 if (!smb_vop_initialized) 202 return; 203 204 lm_free_sysidt(smb_ct.cc_sysid); 205 smb_ct.cc_pid = IGN_PID; 206 smb_ct.cc_sysid = LM_NOSYSID; 207 smb_vop_initialized = B_FALSE; 208 } 209 210 /* 211 * The smb_ct will be used primarily for range locking. 212 * Since the CIFS server is mapping its locks to POSIX locks, 213 * only one pid is used for operations originating from the 214 * CIFS server (to represent CIFS in the VOP_FRLOCK routines). 215 */ 216 int 217 smb_vop_open(vnode_t **vpp, int mode, cred_t *cred) 218 { 219 return (VOP_OPEN(vpp, mode, cred, &smb_ct)); 220 } 221 222 void 223 smb_vop_close(vnode_t *vp, int mode, cred_t *cred) 224 { 225 (void) VOP_CLOSE(vp, mode, 1, (offset_t)0, cred, &smb_ct); 226 } 227 228 int 229 smb_vop_other_opens(vnode_t *vp, int mode) 230 { 231 return (((mode & FWRITE) && vn_has_other_opens(vp, V_WRITE)) || 232 (((mode & FWRITE) == 0) && vn_is_opened(vp, V_WRITE)) || 233 ((mode & FREAD) && vn_has_other_opens(vp, V_READ)) || 234 (((mode & FREAD) == 0) && vn_is_opened(vp, V_READ)) || 235 vn_is_mapped(vp, V_RDORWR)); 236 } 237 238 /* 239 * The smb_vop_* functions have minimal knowledge of CIFS semantics and 240 * serve as an interface to the VFS layer. 241 * 242 * Only smb_fsop_* layer functions should call smb_vop_* layer functions. 243 * (Higher-level CIFS service code should never skip the smb_fsop_* layer 244 * to call smb_vop_* layer functions directly.) 245 */ 246 247 /* 248 * XXX - Extended attributes support in the file system assumed. 249 * This is needed for full NT Streams functionality. 250 */ 251 252 int 253 smb_vop_read(vnode_t *vp, uio_t *uiop, cred_t *cr) 254 { 255 int error; 256 257 (void) VOP_RWLOCK(vp, V_WRITELOCK_FALSE, &smb_ct); 258 error = VOP_READ(vp, uiop, 0, cr, &smb_ct); 259 VOP_RWUNLOCK(vp, V_WRITELOCK_FALSE, &smb_ct); 260 return (error); 261 } 262 263 int 264 smb_vop_write(vnode_t *vp, uio_t *uiop, int ioflag, uint32_t *lcount, 265 cred_t *cr) 266 { 267 int error; 268 269 *lcount = uiop->uio_resid; 270 271 uiop->uio_llimit = MAXOFFSET_T; 272 273 (void) VOP_RWLOCK(vp, V_WRITELOCK_TRUE, &smb_ct); 274 error = VOP_WRITE(vp, uiop, ioflag, cr, &smb_ct); 275 VOP_RWUNLOCK(vp, V_WRITELOCK_TRUE, &smb_ct); 276 277 *lcount -= uiop->uio_resid; 278 279 return (error); 280 } 281 282 /* 283 * smb_vop_getattr() 284 * 285 * smb_fsop_getattr()/smb_vop_getattr() should always be called from the CIFS 286 * service (instead of calling VOP_GETATTR directly) to retrieve attributes 287 * due to special processing needed for streams files. 288 * 289 * All attributes are retrieved. 290 * 291 * When vp denotes a named stream, then unnamed_vp should be passed in (denoting 292 * the corresponding unnamed stream). 293 * A named stream's attributes (as far as CIFS is concerned) are those of the 294 * unnamed stream (minus the size attribute, and the type), plus the size of 295 * the named stream, and a type value of VREG. 296 * Although the file system may store other attributes with the named stream, 297 * these should not be used by CIFS for any purpose. 298 * 299 * File systems without VFSFT_XVATTR do not support DOS attributes or create 300 * time (crtime). In this case the mtime is used as the crtime. 301 * Likewise if VOP_GETATTR doesn't return any system attributes the dosattr 302 * is 0 and the mtime is used as the crtime. 303 */ 304 int 305 smb_vop_getattr(vnode_t *vp, vnode_t *unnamed_vp, smb_attr_t *ret_attr, 306 int flags, cred_t *cr) 307 { 308 int error; 309 vnode_t *use_vp; 310 smb_attr_t tmp_attr; 311 xvattr_t tmp_xvattr; 312 xoptattr_t *xoap = NULL; 313 314 if (unnamed_vp) 315 use_vp = unnamed_vp; 316 else 317 use_vp = vp; 318 319 if (vfs_has_feature(use_vp->v_vfsp, VFSFT_XVATTR)) { 320 xva_init(&tmp_xvattr); 321 xoap = xva_getxoptattr(&tmp_xvattr); 322 ASSERT(xoap); 323 324 smb_sa_to_va_mask(ret_attr->sa_mask, 325 &tmp_xvattr.xva_vattr.va_mask); 326 327 XVA_SET_REQ(&tmp_xvattr, XAT_READONLY); 328 XVA_SET_REQ(&tmp_xvattr, XAT_HIDDEN); 329 XVA_SET_REQ(&tmp_xvattr, XAT_SYSTEM); 330 XVA_SET_REQ(&tmp_xvattr, XAT_ARCHIVE); 331 XVA_SET_REQ(&tmp_xvattr, XAT_CREATETIME); 332 XVA_SET_REQ(&tmp_xvattr, XAT_REPARSE); 333 XVA_SET_REQ(&tmp_xvattr, XAT_OFFLINE); 334 XVA_SET_REQ(&tmp_xvattr, XAT_SPARSE); 335 336 error = VOP_GETATTR(use_vp, &tmp_xvattr.xva_vattr, flags, 337 cr, &smb_ct); 338 if (error != 0) 339 return (error); 340 341 ret_attr->sa_vattr = tmp_xvattr.xva_vattr; 342 ret_attr->sa_dosattr = 0; 343 344 if (tmp_xvattr.xva_vattr.va_mask & AT_XVATTR) { 345 xoap = xva_getxoptattr(&tmp_xvattr); 346 ASSERT(xoap); 347 348 if ((XVA_ISSET_RTN(&tmp_xvattr, XAT_READONLY)) && 349 (xoap->xoa_readonly)) { 350 ret_attr->sa_dosattr |= FILE_ATTRIBUTE_READONLY; 351 } 352 353 if ((XVA_ISSET_RTN(&tmp_xvattr, XAT_HIDDEN)) && 354 (xoap->xoa_hidden)) { 355 ret_attr->sa_dosattr |= FILE_ATTRIBUTE_HIDDEN; 356 } 357 358 if ((XVA_ISSET_RTN(&tmp_xvattr, XAT_SYSTEM)) && 359 (xoap->xoa_system)) { 360 ret_attr->sa_dosattr |= FILE_ATTRIBUTE_SYSTEM; 361 } 362 363 if ((XVA_ISSET_RTN(&tmp_xvattr, XAT_ARCHIVE)) && 364 (xoap->xoa_archive)) { 365 ret_attr->sa_dosattr |= FILE_ATTRIBUTE_ARCHIVE; 366 } 367 368 if ((XVA_ISSET_RTN(&tmp_xvattr, XAT_REPARSE)) && 369 (xoap->xoa_reparse)) { 370 ret_attr->sa_dosattr |= 371 FILE_ATTRIBUTE_REPARSE_POINT; 372 } 373 374 if ((XVA_ISSET_RTN(&tmp_xvattr, XAT_OFFLINE)) && 375 (xoap->xoa_offline)) { 376 ret_attr->sa_dosattr |= FILE_ATTRIBUTE_OFFLINE; 377 } 378 379 if ((XVA_ISSET_RTN(&tmp_xvattr, XAT_SPARSE)) && 380 (xoap->xoa_sparse)) { 381 ret_attr->sa_dosattr |= 382 FILE_ATTRIBUTE_SPARSE_FILE; 383 } 384 385 ret_attr->sa_crtime = xoap->xoa_createtime; 386 } else { 387 ret_attr->sa_crtime = ret_attr->sa_vattr.va_mtime; 388 } 389 } else { 390 /* 391 * Support for file systems without VFSFT_XVATTR 392 */ 393 smb_sa_to_va_mask(ret_attr->sa_mask, 394 &ret_attr->sa_vattr.va_mask); 395 396 error = VOP_GETATTR(use_vp, &ret_attr->sa_vattr, 397 flags, cr, &smb_ct); 398 if (error != 0) 399 return (error); 400 401 ret_attr->sa_dosattr = 0; 402 ret_attr->sa_crtime = ret_attr->sa_vattr.va_mtime; 403 } 404 405 if (unnamed_vp) { 406 ret_attr->sa_vattr.va_type = VREG; 407 408 if (ret_attr->sa_mask & (SMB_AT_SIZE | SMB_AT_NBLOCKS)) { 409 tmp_attr.sa_vattr.va_mask = AT_SIZE | AT_NBLOCKS; 410 411 error = VOP_GETATTR(vp, &tmp_attr.sa_vattr, 412 flags, cr, &smb_ct); 413 if (error != 0) 414 return (error); 415 416 ret_attr->sa_vattr.va_size = tmp_attr.sa_vattr.va_size; 417 ret_attr->sa_vattr.va_nblocks = 418 tmp_attr.sa_vattr.va_nblocks; 419 } 420 } 421 422 if (ret_attr->sa_vattr.va_type == VDIR) 423 ret_attr->sa_dosattr |= FILE_ATTRIBUTE_DIRECTORY; 424 425 return (error); 426 } 427 428 /* 429 * smb_vop_setattr() 430 * 431 * smb_fsop_setattr()/smb_vop_setattr() should always be used instead of 432 * VOP_SETATTR() when calling from the CIFS service, due to special processing 433 * for streams files. 434 * 435 * Streams have a size but otherwise do not have separate attributes from 436 * the (unnamed stream) file, i.e., the security and ownership of the file 437 * applies to the stream. In contrast, extended attribute files, which are 438 * used to implement streams, are independent objects with their own 439 * attributes. 440 * 441 * For compatibility with streams, we set the size on the extended attribute 442 * file and apply other attributes to the (unnamed stream) file. The one 443 * exception is that the UID and GID can be set on the stream by passing a 444 * NULL unnamed_vp, which allows callers to synchronize stream ownership 445 * with the (unnamed stream) file. 446 */ 447 int 448 smb_vop_setattr(vnode_t *vp, vnode_t *unnamed_vp, smb_attr_t *attr, 449 int flags, cred_t *cr) 450 { 451 int error = 0; 452 int at_size = 0; 453 vnode_t *use_vp; 454 xvattr_t xvattr; 455 vattr_t *vap; 456 457 if (attr->sa_mask & SMB_AT_DOSATTR) { 458 attr->sa_dosattr &= 459 (FILE_ATTRIBUTE_ARCHIVE | FILE_ATTRIBUTE_READONLY | 460 FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM | 461 FILE_ATTRIBUTE_OFFLINE | FILE_ATTRIBUTE_SPARSE_FILE); 462 } 463 464 if (unnamed_vp) { 465 use_vp = unnamed_vp; 466 if (attr->sa_mask & SMB_AT_SIZE) { 467 at_size = 1; 468 attr->sa_mask &= ~SMB_AT_SIZE; 469 } 470 } else { 471 use_vp = vp; 472 } 473 474 /* 475 * The caller should not be setting sa_vattr.va_mask, 476 * but rather sa_mask. 477 */ 478 479 attr->sa_vattr.va_mask = 0; 480 481 if (vfs_has_feature(use_vp->v_vfsp, VFSFT_XVATTR)) { 482 smb_vop_setup_xvattr(attr, &xvattr); 483 vap = &xvattr.xva_vattr; 484 } else { 485 smb_sa_to_va_mask(attr->sa_mask, 486 &attr->sa_vattr.va_mask); 487 vap = &attr->sa_vattr; 488 } 489 490 if ((error = VOP_SETATTR(use_vp, vap, flags, cr, &smb_ct)) != 0) 491 return (error); 492 493 if (at_size) { 494 attr->sa_vattr.va_mask = AT_SIZE; 495 error = VOP_SETATTR(vp, &attr->sa_vattr, flags, 496 zone_kcred(), &smb_ct); 497 } 498 499 return (error); 500 } 501 502 int 503 smb_vop_space(vnode_t *vp, int cmd, flock64_t *bfp, int flags, 504 offset_t offset, cred_t *cr) 505 { 506 int error; 507 508 error = VOP_SPACE(vp, cmd, bfp, flags, offset, cr, &smb_ct); 509 510 return (error); 511 } 512 513 /* 514 * smb_vop_access 515 * 516 * This is a wrapper round VOP_ACCESS. VOP_ACCESS checks the given mode 517 * against file's ACL or Unix permissions. CIFS on the other hand needs to 518 * know if the requested operation can succeed for the given object, this 519 * requires more checks in case of DELETE bit since permissions on the parent 520 * directory are important as well. Based on Windows rules if parent's ACL 521 * grant FILE_DELETE_CHILD a file can be delete regardless of the file's 522 * permissions. 523 */ 524 int 525 smb_vop_access(vnode_t *vp, int mode, int flags, vnode_t *dir_vp, cred_t *cr) 526 { 527 int error = 0; 528 529 if (mode == 0) 530 return (0); 531 532 if ((flags == V_ACE_MASK) && (mode & ACE_DELETE)) { 533 if (dir_vp) { 534 error = VOP_ACCESS(dir_vp, ACE_DELETE_CHILD, flags, 535 cr, NULL); 536 537 if (error == 0) 538 mode &= ~ACE_DELETE; 539 } 540 } 541 542 if (mode) { 543 error = VOP_ACCESS(vp, mode, flags, cr, NULL); 544 } 545 546 return (error); 547 } 548 549 /* 550 * smb_vop_lookup 551 * 552 * dvp: directory vnode (in) 553 * name: name of file to be looked up (in) 554 * vpp: looked-up vnode (out) 555 * od_name: on-disk name of file (out). 556 * This parameter is optional. If a pointer is passed in, it 557 * must be allocated with MAXNAMELEN bytes 558 * rootvp: vnode of the tree root (in) 559 * This parameter is always passed in non-NULL except at the time 560 * of share set up. 561 * direntflags: dirent flags returned from VOP_LOOKUP 562 */ 563 int 564 smb_vop_lookup( 565 vnode_t *dvp, 566 char *name, 567 vnode_t **vpp, 568 char *od_name, 569 int flags, 570 int *direntflags, 571 vnode_t *rootvp, 572 smb_attr_t *attr, 573 cred_t *cr) 574 { 575 int error = 0; 576 int option_flags = 0; 577 pathname_t rpn; 578 char *np = name; 579 char namebuf[MAXNAMELEN]; 580 581 if (*name == '\0') 582 return (EINVAL); 583 584 ASSERT(vpp); 585 *vpp = NULL; 586 *direntflags = 0; 587 588 if ((name[0] == '.') && (name[1] == '.') && (name[2] == 0)) { 589 if (rootvp && (dvp == rootvp)) { 590 VN_HOLD(dvp); 591 *vpp = dvp; 592 return (0); 593 } 594 595 if (dvp->v_flag & VROOT) { 596 vfs_t *vfsp; 597 vnode_t *cvp = dvp; 598 599 /* 600 * Set dvp and check for races with forced unmount 601 * (see lookuppnvp()) 602 */ 603 604 vfsp = cvp->v_vfsp; 605 vfs_rlock_wait(vfsp); 606 if (((dvp = cvp->v_vfsp->vfs_vnodecovered) == NULL) || 607 (cvp->v_vfsp->vfs_flag & VFS_UNMOUNTED)) { 608 vfs_unlock(vfsp); 609 return (EIO); 610 } 611 vfs_unlock(vfsp); 612 } 613 } 614 615 if (flags & SMB_IGNORE_CASE) 616 option_flags = FIGNORECASE; 617 618 if (flags & SMB_CATIA) 619 np = smb_vop_catia_v5tov4(name, namebuf, sizeof (namebuf)); 620 621 pn_alloc(&rpn); 622 623 error = VOP_LOOKUP(dvp, np, vpp, NULL, option_flags, NULL, cr, 624 &smb_ct, direntflags, &rpn); 625 626 if (error == 0) { 627 if (od_name) { 628 bzero(od_name, MAXNAMELEN); 629 np = (option_flags == FIGNORECASE) ? rpn.pn_buf : name; 630 631 if (flags & SMB_CATIA) 632 smb_vop_catia_v4tov5(np, od_name, MAXNAMELEN); 633 else 634 (void) strlcpy(od_name, np, MAXNAMELEN); 635 } 636 637 if (attr != NULL) { 638 attr->sa_mask = SMB_AT_ALL; 639 (void) smb_vop_getattr(*vpp, NULL, attr, 0, 640 zone_kcred()); 641 } 642 } 643 644 pn_free(&rpn); 645 return (error); 646 } 647 648 int 649 smb_vop_create(vnode_t *dvp, char *name, smb_attr_t *attr, vnode_t **vpp, 650 int flags, cred_t *cr, vsecattr_t *vsap) 651 { 652 int error; 653 int option_flags = 0; 654 xvattr_t xvattr; 655 vattr_t *vap; 656 char *np = name; 657 char namebuf[MAXNAMELEN]; 658 659 if (flags & SMB_IGNORE_CASE) 660 option_flags = FIGNORECASE; 661 662 attr->sa_vattr.va_mask = 0; 663 664 if (vfs_has_feature(dvp->v_vfsp, VFSFT_XVATTR)) { 665 smb_vop_setup_xvattr(attr, &xvattr); 666 vap = &xvattr.xva_vattr; 667 } else { 668 smb_sa_to_va_mask(attr->sa_mask, &attr->sa_vattr.va_mask); 669 vap = &attr->sa_vattr; 670 } 671 672 if (flags & SMB_CATIA) { 673 np = smb_vop_catia_v5tov4(name, namebuf, sizeof (namebuf)); 674 if (strchr(np, '/') != NULL) 675 return (EILSEQ); 676 } 677 678 error = VOP_CREATE(dvp, np, vap, EXCL, attr->sa_vattr.va_mode, 679 vpp, cr, option_flags, &smb_ct, vsap); 680 681 return (error); 682 } 683 684 int 685 smb_vop_remove(vnode_t *dvp, char *name, int flags, cred_t *cr) 686 { 687 int error; 688 int option_flags = 0; 689 char *np = name; 690 char namebuf[MAXNAMELEN]; 691 692 if (flags & SMB_IGNORE_CASE) 693 option_flags = FIGNORECASE; 694 695 if (flags & SMB_CATIA) 696 np = smb_vop_catia_v5tov4(name, namebuf, sizeof (namebuf)); 697 698 error = VOP_REMOVE(dvp, np, cr, &smb_ct, option_flags); 699 700 return (error); 701 } 702 703 /* 704 * smb_vop_link(target-dir-vp, source-file-vp, target-name) 705 * 706 * Create a link - same tree (identical TID) only. 707 */ 708 int 709 smb_vop_link(vnode_t *to_dvp, vnode_t *from_vp, char *to_name, 710 int flags, cred_t *cr) 711 { 712 int option_flags = 0; 713 char *np, *buf; 714 int rc; 715 716 if (flags & SMB_IGNORE_CASE) 717 option_flags = FIGNORECASE; 718 719 if (flags & SMB_CATIA) { 720 buf = kmem_zalloc(MAXNAMELEN, KM_SLEEP); 721 np = smb_vop_catia_v5tov4(to_name, buf, MAXNAMELEN); 722 if (strchr(np, '/') != NULL) { 723 kmem_free(buf, MAXNAMELEN); 724 return (EILSEQ); 725 } 726 727 rc = VOP_LINK(to_dvp, from_vp, np, cr, &smb_ct, option_flags); 728 kmem_free(buf, MAXNAMELEN); 729 return (rc); 730 } 731 732 rc = VOP_LINK(to_dvp, from_vp, to_name, cr, &smb_ct, option_flags); 733 return (rc); 734 } 735 736 /* 737 * smb_vop_rename() 738 * 739 * The rename is for files in the same tree (identical TID) only. 740 */ 741 int 742 smb_vop_rename(vnode_t *from_dvp, char *from_name, vnode_t *to_dvp, 743 char *to_name, int flags, cred_t *cr) 744 { 745 int error; 746 int option_flags = 0; 747 char *from, *to, *fbuf, *tbuf; 748 749 if (flags & SMB_IGNORE_CASE) 750 option_flags = FIGNORECASE; 751 752 if (flags & SMB_CATIA) { 753 tbuf = kmem_zalloc(MAXNAMELEN, KM_SLEEP); 754 to = smb_vop_catia_v5tov4(to_name, tbuf, MAXNAMELEN); 755 if (strchr(to, '/') != NULL) { 756 kmem_free(tbuf, MAXNAMELEN); 757 return (EILSEQ); 758 } 759 760 fbuf = kmem_zalloc(MAXNAMELEN, KM_SLEEP); 761 from = smb_vop_catia_v5tov4(from_name, fbuf, MAXNAMELEN); 762 763 error = VOP_RENAME(from_dvp, from, to_dvp, to, cr, 764 &smb_ct, option_flags); 765 766 kmem_free(tbuf, MAXNAMELEN); 767 kmem_free(fbuf, MAXNAMELEN); 768 return (error); 769 } 770 771 error = VOP_RENAME(from_dvp, from_name, to_dvp, to_name, cr, 772 &smb_ct, option_flags); 773 774 return (error); 775 } 776 777 int 778 smb_vop_mkdir(vnode_t *dvp, char *name, smb_attr_t *attr, vnode_t **vpp, 779 int flags, cred_t *cr, vsecattr_t *vsap) 780 { 781 int error; 782 int option_flags = 0; 783 xvattr_t xvattr; 784 vattr_t *vap; 785 char *np = name; 786 char namebuf[MAXNAMELEN]; 787 788 if (flags & SMB_IGNORE_CASE) 789 option_flags = FIGNORECASE; 790 791 attr->sa_vattr.va_mask = 0; 792 793 if (vfs_has_feature(dvp->v_vfsp, VFSFT_XVATTR)) { 794 smb_vop_setup_xvattr(attr, &xvattr); 795 vap = &xvattr.xva_vattr; 796 } else { 797 smb_sa_to_va_mask(attr->sa_mask, &attr->sa_vattr.va_mask); 798 vap = &attr->sa_vattr; 799 } 800 801 if (flags & SMB_CATIA) { 802 np = smb_vop_catia_v5tov4(name, namebuf, sizeof (namebuf)); 803 if (strchr(np, '/') != NULL) 804 return (EILSEQ); 805 } 806 807 error = VOP_MKDIR(dvp, np, vap, vpp, cr, &smb_ct, option_flags, vsap); 808 809 return (error); 810 } 811 812 /* 813 * smb_vop_rmdir() 814 * 815 * Only simple rmdir supported, consistent with NT semantics 816 * (can only remove an empty directory). 817 * 818 * The third argument to VOP_RMDIR is the current directory of 819 * the process. It allows rmdir wants to EINVAL if one tries to 820 * remove ".". Since SMB servers do not know what their clients' 821 * current directories are, we fake it by supplying a vnode known 822 * to exist and illegal to remove (rootdir). 823 */ 824 int 825 smb_vop_rmdir(vnode_t *dvp, char *name, int flags, cred_t *cr) 826 { 827 int error; 828 int option_flags = 0; 829 char *np = name; 830 char namebuf[MAXNAMELEN]; 831 832 if (flags & SMB_IGNORE_CASE) 833 option_flags = FIGNORECASE; 834 835 if (flags & SMB_CATIA) 836 np = smb_vop_catia_v5tov4(name, namebuf, sizeof (namebuf)); 837 838 error = VOP_RMDIR(dvp, np, rootdir, cr, &smb_ct, option_flags); 839 return (error); 840 } 841 842 int 843 smb_vop_commit(vnode_t *vp, cred_t *cr) 844 { 845 return (VOP_FSYNC(vp, 1, cr, &smb_ct)); 846 } 847 848 /* 849 * Some code in smb_node.c needs to know which DOS attributes 850 * we can actually store. Let's define a mask here of all the 851 * DOS attribute flags supported by the following function. 852 */ 853 const uint32_t 854 smb_vop_dosattr_settable = 855 FILE_ATTRIBUTE_ARCHIVE | 856 FILE_ATTRIBUTE_SYSTEM | 857 FILE_ATTRIBUTE_HIDDEN | 858 FILE_ATTRIBUTE_READONLY | 859 FILE_ATTRIBUTE_OFFLINE | 860 FILE_ATTRIBUTE_SPARSE_FILE; 861 862 static void 863 smb_vop_setup_xvattr(smb_attr_t *smb_attr, xvattr_t *xvattr) 864 { 865 xoptattr_t *xoap = NULL; 866 uint_t xva_mask; 867 868 /* 869 * Initialize xvattr, including bzero 870 */ 871 xva_init(xvattr); 872 xoap = xva_getxoptattr(xvattr); 873 874 ASSERT(xoap); 875 876 /* 877 * Copy caller-specified classic attributes to xvattr. 878 * First save xvattr's mask (set in xva_init()), which 879 * contains AT_XVATTR. This is |'d in later if needed. 880 */ 881 882 xva_mask = xvattr->xva_vattr.va_mask; 883 xvattr->xva_vattr = smb_attr->sa_vattr; 884 885 smb_sa_to_va_mask(smb_attr->sa_mask, &xvattr->xva_vattr.va_mask); 886 887 /* 888 * Do not set ctime (only the file system can do it) 889 */ 890 891 xvattr->xva_vattr.va_mask &= ~AT_CTIME; 892 893 if (smb_attr->sa_mask & SMB_AT_DOSATTR) { 894 895 /* 896 * "|" in the original xva_mask, which contains 897 * AT_XVATTR 898 */ 899 900 xvattr->xva_vattr.va_mask |= xva_mask; 901 902 XVA_SET_REQ(xvattr, XAT_ARCHIVE); 903 XVA_SET_REQ(xvattr, XAT_SYSTEM); 904 XVA_SET_REQ(xvattr, XAT_READONLY); 905 XVA_SET_REQ(xvattr, XAT_HIDDEN); 906 XVA_SET_REQ(xvattr, XAT_OFFLINE); 907 XVA_SET_REQ(xvattr, XAT_SPARSE); 908 909 /* 910 * smb_attr->sa_dosattr: If a given bit is not set, 911 * that indicates that the corresponding field needs 912 * to be updated with a "0" value. This is done 913 * implicitly as the xoap->xoa_* fields were bzero'd. 914 */ 915 916 if (smb_attr->sa_dosattr & FILE_ATTRIBUTE_ARCHIVE) 917 xoap->xoa_archive = 1; 918 919 if (smb_attr->sa_dosattr & FILE_ATTRIBUTE_SYSTEM) 920 xoap->xoa_system = 1; 921 922 if (smb_attr->sa_dosattr & FILE_ATTRIBUTE_READONLY) 923 xoap->xoa_readonly = 1; 924 925 if (smb_attr->sa_dosattr & FILE_ATTRIBUTE_HIDDEN) 926 xoap->xoa_hidden = 1; 927 928 if (smb_attr->sa_dosattr & FILE_ATTRIBUTE_OFFLINE) 929 xoap->xoa_offline = 1; 930 931 if (smb_attr->sa_dosattr & FILE_ATTRIBUTE_SPARSE_FILE) 932 xoap->xoa_sparse = 1; 933 } 934 935 if (smb_attr->sa_mask & SMB_AT_CRTIME) { 936 /* 937 * "|" in the original xva_mask, which contains 938 * AT_XVATTR 939 */ 940 941 xvattr->xva_vattr.va_mask |= xva_mask; 942 XVA_SET_REQ(xvattr, XAT_CREATETIME); 943 xoap->xoa_createtime = smb_attr->sa_crtime; 944 } 945 } 946 947 /* 948 * smb_vop_readdir() 949 * 950 * Collects an SMB_MINLEN_RDDIR_BUF "page" of directory entries. 951 * The directory entries are returned in an fs-independent format by the 952 * underlying file system. That is, the "page" of information returned is 953 * not literally stored on-disk in the format returned. 954 * If the file system supports extended directory entries (has features 955 * VFSFT_DIRENTFLAGS), set V_RDDIR_ENTFLAGS to cause the buffer to be 956 * filled with edirent_t structures, instead of dirent64_t structures. 957 * If the file system supports access based enumeration (abe), set 958 * V_RDDIR_ACCFILTER to filter directory entries based on user cred. 959 */ 960 int 961 smb_vop_readdir(vnode_t *vp, uint32_t offset, 962 void *buf, int *count, int *eof, uint32_t rddir_flag, cred_t *cr) 963 { 964 int error = 0; 965 int flags = 0; 966 int rdirent_size; 967 struct uio auio; 968 struct iovec aiov; 969 970 if (vp->v_type != VDIR) 971 return (ENOTDIR); 972 973 if (vfs_has_feature(vp->v_vfsp, VFSFT_DIRENTFLAGS)) { 974 flags |= V_RDDIR_ENTFLAGS; 975 rdirent_size = sizeof (edirent_t); 976 } else { 977 rdirent_size = sizeof (dirent64_t); 978 } 979 980 if (*count < rdirent_size) 981 return (EINVAL); 982 983 if (rddir_flag & SMB_ABE) 984 flags |= V_RDDIR_ACCFILTER; 985 986 aiov.iov_base = buf; 987 aiov.iov_len = *count; 988 auio.uio_iov = &aiov; 989 auio.uio_iovcnt = 1; 990 auio.uio_loffset = (uint64_t)offset; 991 auio.uio_segflg = UIO_SYSSPACE; 992 auio.uio_extflg = UIO_COPY_DEFAULT; 993 auio.uio_resid = *count; 994 auio.uio_fmode = 0; 995 996 (void) VOP_RWLOCK(vp, V_WRITELOCK_FALSE, &smb_ct); 997 error = VOP_READDIR(vp, &auio, cr, eof, &smb_ct, flags); 998 VOP_RWUNLOCK(vp, V_WRITELOCK_FALSE, &smb_ct); 999 1000 if (error == 0) 1001 *count = *count - auio.uio_resid; 1002 1003 return (error); 1004 } 1005 1006 /* 1007 * smb_sa_to_va_mask 1008 * 1009 * Set va_mask by running through the SMB_AT_* #define's and 1010 * setting those bits that correspond to the SMB_AT_* bits 1011 * set in sa_mask. 1012 */ 1013 void 1014 smb_sa_to_va_mask(uint_t sa_mask, uint_t *va_maskp) 1015 { 1016 int i; 1017 uint_t smask; 1018 1019 smask = (sa_mask); 1020 for (i = SMB_AT_TYPE; (i < SMB_AT_MAX) && (smask != 0); ++i) { 1021 if (smask & 1) 1022 *(va_maskp) |= smb_attrmap[i]; 1023 1024 smask >>= 1; 1025 } 1026 } 1027 1028 /* 1029 * smb_vop_stream_lookup() 1030 * 1031 * The name returned in od_name is the on-disk name of the stream with the 1032 * SMB_STREAM_PREFIX stripped off. od_name should be allocated to MAXNAMELEN 1033 * by the caller. 1034 */ 1035 int 1036 smb_vop_stream_lookup( 1037 vnode_t *fvp, 1038 char *stream_name, 1039 vnode_t **vpp, 1040 char *od_name, 1041 vnode_t **xattrdirvpp, 1042 int flags, 1043 vnode_t *rootvp, 1044 cred_t *cr) 1045 { 1046 char *solaris_stream_name; 1047 char *name; 1048 int error, tmpflgs; 1049 1050 if ((error = smb_vop_lookup_xattrdir(fvp, xattrdirvpp, 1051 LOOKUP_XATTR | CREATE_XATTR_DIR, cr)) != 0) 1052 return (error); 1053 1054 /* 1055 * Prepend SMB_STREAM_PREFIX to stream name 1056 */ 1057 1058 solaris_stream_name = kmem_alloc(MAXNAMELEN, KM_SLEEP); 1059 (void) snprintf(solaris_stream_name, MAXNAMELEN, 1060 "%s%s", SMB_STREAM_PREFIX, stream_name); 1061 1062 /* 1063 * "name" will hold the on-disk name returned from smb_vop_lookup 1064 * for the stream, including the SMB_STREAM_PREFIX. 1065 */ 1066 1067 name = kmem_zalloc(MAXNAMELEN, KM_SLEEP); 1068 1069 if ((error = smb_vop_lookup(*xattrdirvpp, solaris_stream_name, vpp, 1070 name, flags, &tmpflgs, rootvp, NULL, cr)) != 0) { 1071 VN_RELE(*xattrdirvpp); 1072 } else { 1073 (void) strlcpy(od_name, &(name[SMB_STREAM_PREFIX_LEN]), 1074 MAXNAMELEN); 1075 } 1076 1077 kmem_free(solaris_stream_name, MAXNAMELEN); 1078 kmem_free(name, MAXNAMELEN); 1079 1080 return (error); 1081 } 1082 1083 int 1084 smb_vop_stream_create(vnode_t *fvp, char *stream_name, smb_attr_t *attr, 1085 vnode_t **vpp, vnode_t **xattrdirvpp, int flags, cred_t *cr) 1086 { 1087 char *solaris_stream_name; 1088 int error; 1089 1090 if ((error = smb_vop_lookup_xattrdir(fvp, xattrdirvpp, 1091 LOOKUP_XATTR | CREATE_XATTR_DIR, cr)) != 0) 1092 return (error); 1093 1094 /* 1095 * Prepend SMB_STREAM_PREFIX to stream name 1096 */ 1097 1098 solaris_stream_name = kmem_alloc(MAXNAMELEN, KM_SLEEP); 1099 (void) snprintf(solaris_stream_name, MAXNAMELEN, 1100 "%s%s", SMB_STREAM_PREFIX, stream_name); 1101 1102 if ((error = smb_vop_create(*xattrdirvpp, solaris_stream_name, attr, 1103 vpp, flags, cr, NULL)) != 0) 1104 VN_RELE(*xattrdirvpp); 1105 1106 kmem_free(solaris_stream_name, MAXNAMELEN); 1107 1108 return (error); 1109 } 1110 1111 int 1112 smb_vop_stream_remove(vnode_t *vp, char *stream_name, int flags, cred_t *cr) 1113 { 1114 char *solaris_stream_name; 1115 vnode_t *xattrdirvp; 1116 int error; 1117 1118 error = smb_vop_lookup_xattrdir(vp, &xattrdirvp, LOOKUP_XATTR, cr); 1119 if (error != 0) 1120 return (error); 1121 1122 /* 1123 * Prepend SMB_STREAM_PREFIX to stream name 1124 */ 1125 1126 solaris_stream_name = kmem_alloc(MAXNAMELEN, KM_SLEEP); 1127 (void) snprintf(solaris_stream_name, MAXNAMELEN, 1128 "%s%s", SMB_STREAM_PREFIX, stream_name); 1129 1130 /* XXX might have to use kcred */ 1131 error = smb_vop_remove(xattrdirvp, solaris_stream_name, flags, cr); 1132 1133 kmem_free(solaris_stream_name, MAXNAMELEN); 1134 VN_RELE(xattrdirvp); 1135 1136 return (error); 1137 } 1138 1139 int 1140 smb_vop_lookup_xattrdir(vnode_t *fvp, vnode_t **xattrdirvpp, int flags, 1141 cred_t *cr) 1142 { 1143 int error; 1144 1145 error = VOP_LOOKUP(fvp, "", xattrdirvpp, NULL, flags, NULL, cr, 1146 &smb_ct, NULL, NULL); 1147 return (error); 1148 } 1149 1150 /* 1151 * smb_vop_traverse_check() 1152 * 1153 * This function checks to see if the passed-in vnode has a file system 1154 * mounted on it. If it does, the mount point is "traversed" and the 1155 * vnode for the root of the file system is returned. 1156 */ 1157 int 1158 smb_vop_traverse_check(vnode_t **vpp) 1159 { 1160 int error; 1161 1162 if (vn_mountedvfs(*vpp) == 0) 1163 return (0); 1164 1165 /* 1166 * traverse() may return a different held vnode, even in the error case. 1167 * If it returns a different vnode, it will have released the original. 1168 */ 1169 1170 error = traverse(vpp); 1171 1172 return (error); 1173 } 1174 1175 int /*ARGSUSED*/ 1176 smb_vop_statfs(vnode_t *vp, struct statvfs64 *statp, cred_t *cr) 1177 { 1178 int error; 1179 1180 error = VFS_STATVFS(vp->v_vfsp, statp); 1181 1182 return (error); 1183 } 1184 1185 /* 1186 * smb_vop_acl_read 1187 * 1188 * Reads the ACL of the specified file into 'aclp'. 1189 * acl_type is the type of ACL which the filesystem supports. 1190 * 1191 * Caller has to free the allocated memory for aclp by calling 1192 * acl_free(). 1193 */ 1194 int 1195 smb_vop_acl_read(vnode_t *vp, acl_t **aclp, int flags, acl_type_t acl_type, 1196 cred_t *cr) 1197 { 1198 int error; 1199 vsecattr_t vsecattr; 1200 1201 ASSERT(vp); 1202 ASSERT(aclp); 1203 1204 *aclp = NULL; 1205 bzero(&vsecattr, sizeof (vsecattr_t)); 1206 1207 switch (acl_type) { 1208 case ACLENT_T: 1209 vsecattr.vsa_mask = VSA_ACL | VSA_ACLCNT | VSA_DFACL | 1210 VSA_DFACLCNT; 1211 break; 1212 1213 case ACE_T: 1214 vsecattr.vsa_mask = VSA_ACE | VSA_ACECNT | VSA_ACE_ACLFLAGS; 1215 break; 1216 1217 default: 1218 return (EINVAL); 1219 } 1220 1221 if (error = VOP_GETSECATTR(vp, &vsecattr, flags, cr, &smb_ct)) 1222 return (error); 1223 1224 *aclp = smb_fsacl_from_vsa(&vsecattr, acl_type); 1225 if (vp->v_type == VDIR) 1226 (*aclp)->acl_flags |= ACL_IS_DIR; 1227 1228 return (0); 1229 } 1230 1231 /* 1232 * smb_vop_acl_write 1233 * 1234 * Writes the given ACL in aclp for the specified file. 1235 */ 1236 int 1237 smb_vop_acl_write(vnode_t *vp, acl_t *aclp, int flags, cred_t *cr) 1238 { 1239 int error; 1240 vsecattr_t vsecattr; 1241 int aclbsize; 1242 1243 ASSERT(vp); 1244 ASSERT(aclp); 1245 1246 error = smb_fsacl_to_vsa(aclp, &vsecattr, &aclbsize); 1247 1248 if (error == 0) { 1249 (void) VOP_RWLOCK(vp, V_WRITELOCK_TRUE, &smb_ct); 1250 error = VOP_SETSECATTR(vp, &vsecattr, flags, cr, &smb_ct); 1251 VOP_RWUNLOCK(vp, V_WRITELOCK_TRUE, &smb_ct); 1252 } 1253 1254 if (aclbsize && vsecattr.vsa_aclentp) 1255 kmem_free(vsecattr.vsa_aclentp, aclbsize); 1256 1257 return (error); 1258 } 1259 1260 /* 1261 * smb_vop_acl_type 1262 * 1263 * Determines the ACL type for the given vnode. 1264 * ACLENT_T is a Posix ACL and ACE_T is a ZFS ACL. 1265 */ 1266 acl_type_t 1267 smb_vop_acl_type(vnode_t *vp) 1268 { 1269 int error; 1270 ulong_t whichacl; 1271 1272 error = VOP_PATHCONF(vp, _PC_ACL_ENABLED, &whichacl, 1273 zone_kcred(), NULL); 1274 if (error != 0) { 1275 /* 1276 * If we got an error, then the filesystem 1277 * likely does not understand the _PC_ACL_ENABLED 1278 * pathconf. In this case, we fall back to trying 1279 * POSIX-draft (aka UFS-style) ACLs. 1280 */ 1281 whichacl = _ACL_ACLENT_ENABLED; 1282 } 1283 1284 if (!(whichacl & (_ACL_ACE_ENABLED | _ACL_ACLENT_ENABLED))) { 1285 /* 1286 * If the file system supports neither ACE nor 1287 * ACLENT ACLs we will fall back to UFS-style ACLs 1288 * like we did above if there was an error upon 1289 * calling VOP_PATHCONF. 1290 * 1291 * ACE and ACLENT type ACLs are the only interfaces 1292 * supported thus far. If any other bits are set on 1293 * 'whichacl' upon return from VOP_PATHCONF, we will 1294 * ignore them. 1295 */ 1296 whichacl = _ACL_ACLENT_ENABLED; 1297 } 1298 1299 if (whichacl == _ACL_ACLENT_ENABLED) 1300 return (ACLENT_T); 1301 1302 return (ACE_T); 1303 } 1304 1305 static const int zfs_perms[] = { 1306 ACE_READ_DATA, ACE_WRITE_DATA, ACE_APPEND_DATA, ACE_READ_NAMED_ATTRS, 1307 ACE_WRITE_NAMED_ATTRS, ACE_EXECUTE, ACE_DELETE_CHILD, 1308 ACE_READ_ATTRIBUTES, ACE_WRITE_ATTRIBUTES, ACE_DELETE, ACE_READ_ACL, 1309 ACE_WRITE_ACL, ACE_WRITE_OWNER, ACE_SYNCHRONIZE 1310 }; 1311 1312 static const int unix_perms[] = { VREAD, VWRITE, VEXEC }; 1313 /* 1314 * smb_vop_eaccess 1315 * 1316 * Returns the effective permission of the given credential for the 1317 * specified object. 1318 * 1319 * This is just a workaround. We need VFS/FS support for this. 1320 */ 1321 void 1322 smb_vop_eaccess(vnode_t *vp, int *mode, int flags, vnode_t *dir_vp, cred_t *cr) 1323 { 1324 int error, i; 1325 int pnum; 1326 1327 *mode = 0; 1328 1329 if (flags == V_ACE_MASK) { 1330 pnum = sizeof (zfs_perms) / sizeof (int); 1331 1332 for (i = 0; i < pnum; i++) { 1333 error = smb_vop_access(vp, zfs_perms[i], flags, 1334 dir_vp, cr); 1335 if (error == 0) 1336 *mode |= zfs_perms[i]; 1337 } 1338 } else { 1339 pnum = sizeof (unix_perms) / sizeof (int); 1340 1341 for (i = 0; i < pnum; i++) { 1342 error = smb_vop_access(vp, unix_perms[i], flags, 1343 dir_vp, cr); 1344 if (error == 0) 1345 *mode |= unix_perms[i]; 1346 } 1347 } 1348 } 1349 1350 /* 1351 * See comments for smb_fsop_shrlock() 1352 */ 1353 int 1354 smb_vop_shrlock(vnode_t *vp, uint32_t uniq_fid, uint32_t desired_access, 1355 uint32_t share_access, cred_t *cr) 1356 { 1357 struct shrlock shr; 1358 struct shr_locowner shr_own; 1359 short new_access = 0; 1360 short deny = 0; 1361 int flag = 0; 1362 int cmd; 1363 1364 /* 1365 * share locking is not supported for non-regular 1366 * objects in NBMAND mode. 1367 */ 1368 if (nbl_need_check(vp)) { 1369 if (vp->v_type != VREG) 1370 return (0); 1371 1372 cmd = F_SHARE_NBMAND; 1373 } else { 1374 cmd = F_SHARE; 1375 } 1376 1377 if ((desired_access & FILE_DATA_ALL) == 0) { 1378 /* metadata access only */ 1379 new_access |= F_MDACC; 1380 } else { 1381 if (desired_access & (ACE_READ_DATA | ACE_EXECUTE)) { 1382 new_access |= F_RDACC; 1383 flag |= FREAD; 1384 } 1385 1386 if (desired_access & (ACE_WRITE_DATA | ACE_APPEND_DATA | 1387 ACE_ADD_FILE)) { 1388 new_access |= F_WRACC; 1389 flag |= FWRITE; 1390 } 1391 1392 if (SMB_DENY_READ(share_access)) { 1393 deny |= F_RDDNY; 1394 } 1395 1396 if (SMB_DENY_WRITE(share_access)) { 1397 deny |= F_WRDNY; 1398 } 1399 1400 if (cmd == F_SHARE_NBMAND) { 1401 if (desired_access & ACE_DELETE) 1402 new_access |= F_RMACC; 1403 1404 if (SMB_DENY_DELETE(share_access)) { 1405 deny |= F_RMDNY; 1406 } 1407 } 1408 } 1409 1410 shr.s_access = new_access; 1411 shr.s_deny = deny; 1412 shr.s_sysid = smb_ct.cc_sysid; 1413 shr.s_pid = uniq_fid; 1414 shr.s_own_len = sizeof (shr_own); 1415 shr.s_owner = (caddr_t)&shr_own; 1416 shr_own.sl_id = shr.s_sysid; 1417 shr_own.sl_pid = shr.s_pid; 1418 1419 return (VOP_SHRLOCK(vp, cmd, &shr, flag, cr, NULL)); 1420 } 1421 1422 int 1423 smb_vop_unshrlock(vnode_t *vp, uint32_t uniq_fid, cred_t *cr) 1424 { 1425 struct shrlock shr; 1426 struct shr_locowner shr_own; 1427 1428 /* 1429 * share locking is not supported for non-regular 1430 * objects in NBMAND mode. 1431 */ 1432 if (nbl_need_check(vp) && (vp->v_type != VREG)) 1433 return (0); 1434 1435 /* 1436 * For s_access and s_deny, we do not need to pass in the original 1437 * values. 1438 */ 1439 shr.s_access = 0; 1440 shr.s_deny = 0; 1441 shr.s_sysid = smb_ct.cc_sysid; 1442 shr.s_pid = uniq_fid; 1443 shr.s_own_len = sizeof (shr_own); 1444 shr.s_owner = (caddr_t)&shr_own; 1445 shr_own.sl_id = shr.s_sysid; 1446 shr_own.sl_pid = shr.s_pid; 1447 1448 return (VOP_SHRLOCK(vp, F_UNSHARE, &shr, 0, cr, NULL)); 1449 } 1450 1451 int 1452 smb_vop_frlock(vnode_t *vp, cred_t *cr, int flag, flock64_t *bf) 1453 { 1454 int cmd = nbl_need_check(vp) ? F_SETLK_NBMAND : F_SETLK; 1455 flk_callback_t flk_cb; 1456 1457 flk_init_callback(&flk_cb, smb_lock_frlock_callback, NULL); 1458 1459 return (VOP_FRLOCK(vp, cmd, bf, flag, 0, &flk_cb, cr, &smb_ct)); 1460 } 1461 1462 static callb_cpr_t * 1463 /* ARGSUSED */ 1464 smb_lock_frlock_callback(flk_cb_when_t when, void *error) 1465 { 1466 return (0); 1467 } 1468 1469 /* 1470 * smb_vop_catia_init_v4_lookup 1471 * Initialize mapping between wide characters in the range from 1472 * 0x00A4 to 0x00FF and their UNIX (v4) equivalent (wide character). 1473 * Indexed by the decimal value of the wide character (164-255) 1474 * with an offset of -164. 1475 */ 1476 static void 1477 smb_vop_catia_init_v4_lookup() 1478 { 1479 int i, idx, offset = SMB_CATIA_V4_LOOKUP_LOW; 1480 1481 for (i = 0; i < SMB_CATIA_V4_LOOKUP_MAX; i++) 1482 smb_catia_v4_lookup[i] = (smb_wchar_t)(i + offset); 1483 1484 for (i = 0; i < SMB_CATIA_NUM_MAPS; i++) { 1485 idx = (int)catia_maps[i].winchar - offset; 1486 smb_catia_v4_lookup[idx] = (smb_wchar_t)catia_maps[i].unixchar; 1487 } 1488 } 1489 1490 /* 1491 * smb_vop_catia_init_v5_lookup 1492 * Initialize mapping between UNIX ASCII (v4) characters and equivalent 1493 * or translated wide characters. 1494 * Indexed by the decimal value of the ASCII character (0-127). 1495 */ 1496 static void 1497 smb_vop_catia_init_v5_lookup() 1498 { 1499 int i, idx; 1500 1501 for (i = 0; i < SMB_CATIA_V5_LOOKUP_MAX; i++) 1502 smb_catia_v5_lookup[i] = (smb_wchar_t)i; 1503 1504 for (i = 0; i < SMB_CATIA_NUM_MAPS; i++) { 1505 idx = (int)catia_maps[i].unixchar; 1506 smb_catia_v5_lookup[idx] = catia_maps[i].winchar; 1507 } 1508 } 1509 1510 static void 1511 smb_vop_catia_init() 1512 { 1513 smb_vop_catia_init_v4_lookup(); 1514 smb_vop_catia_init_v5_lookup(); 1515 } 1516 1517 /* 1518 * smb_vop_catia_v5tov4 1519 * (windows (v5) to unix (v4)) 1520 * 1521 * Traverse each character in the given source filename and convert the 1522 * multibyte that is equivalent to any special Windows character listed 1523 * in the catia_maps table to the Unix ASCII character if any is 1524 * encountered in the filename. The translated name is returned in buf. 1525 * 1526 * If an error occurs the conversion terminates and name is returned, 1527 * otherwise buf is returned. 1528 */ 1529 char * 1530 smb_vop_catia_v5tov4(char *name, char *buf, int buflen) 1531 { 1532 int v4_idx, numbytes, inc; 1533 int space_left = buflen - 1; /* one byte reserved for null */ 1534 smb_wchar_t wc; 1535 char mbstring[MTS_MB_CHAR_MAX]; 1536 char *p, *src = name, *dst = buf; 1537 1538 ASSERT(name); 1539 ASSERT(buf); 1540 1541 if (!buf || !name) 1542 return (name); 1543 1544 bzero(buf, buflen); 1545 1546 while (*src) { 1547 if ((numbytes = smb_mbtowc(&wc, src, MTS_MB_CHAR_MAX)) < 0) 1548 return (name); 1549 1550 if (wc < SMB_CATIA_V4_LOOKUP_LOW || 1551 wc > SMB_CATIA_V4_LOOKUP_UPPER) { 1552 inc = numbytes; 1553 p = src; 1554 } else { 1555 /* Lookup required. */ 1556 v4_idx = (int)wc - SMB_CATIA_V4_LOOKUP_LOW; 1557 inc = smb_wctomb(mbstring, smb_catia_v4_lookup[v4_idx]); 1558 p = mbstring; 1559 } 1560 1561 if (space_left < inc) 1562 return (name); 1563 1564 (void) strncpy(dst, p, inc); 1565 dst += inc; 1566 space_left -= inc; 1567 src += numbytes; 1568 } 1569 1570 return (buf); 1571 } 1572 1573 /* 1574 * smb_vop_catia_v4tov5 1575 * (unix (v4) to windows (v5)) 1576 * 1577 * Traverse each character in the given filename 'srcbuf' and convert 1578 * the special Unix character that is listed in the catia_maps table to 1579 * the UTF-8 encoding of the corresponding Windows character if any is 1580 * encountered in the filename. 1581 * 1582 * The translated name is returned in buf. 1583 * If an error occurs the conversion terminates and the original name 1584 * is returned in buf. 1585 */ 1586 void 1587 smb_vop_catia_v4tov5(char *name, char *buf, int buflen) 1588 { 1589 int v5_idx, numbytes; 1590 int space_left = buflen - 1; /* one byte reserved for null */ 1591 smb_wchar_t wc; 1592 char mbstring[MTS_MB_CHAR_MAX]; 1593 char *src = name, *dst = buf; 1594 1595 ASSERT(name); 1596 ASSERT(buf); 1597 1598 if (!buf || !name) 1599 return; 1600 1601 (void) bzero(buf, buflen); 1602 while (*src) { 1603 if (smb_isascii(*src)) { 1604 /* Lookup required */ 1605 v5_idx = (int)*src++; 1606 numbytes = smb_wctomb(mbstring, 1607 smb_catia_v5_lookup[v5_idx]); 1608 if (space_left < numbytes) 1609 break; 1610 (void) strncpy(dst, mbstring, numbytes); 1611 } else { 1612 if ((numbytes = smb_mbtowc(&wc, src, 1613 MTS_MB_CHAR_MAX)) < 0) 1614 break; 1615 if (space_left < numbytes) 1616 break; 1617 (void) strncpy(dst, src, numbytes); 1618 src += numbytes; 1619 } 1620 1621 dst += numbytes; 1622 space_left -= numbytes; 1623 } 1624 1625 if (*src) 1626 (void) strlcpy(buf, name, buflen); 1627 } 1628