source3/modules/vfs_acl_xattr.c

   1 /*
   2  * Store Windows ACLs in xattrs.
   3  *
   4  * Copyright (C) Volker Lendecke, 2008
   5  * Copyright (C) Jeremy Allison, 2008
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 3 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 /* NOTE: This is an experimental module, not yet finished. JRA. */
  22
  23 #include "includes.h"
  24 #include "librpc/gen_ndr/xattr.h"
  25 #include "librpc/gen_ndr/ndr_xattr.h"
  26
  27 #undef DBGC_CLASS
  28 #define DBGC_CLASS DBGC_VFS
  29
  30 /*******************************************************************
  31  Parse out a struct security_descriptor from a DATA_BLOB.
  32 *******************************************************************/
  33
  34 static NTSTATUS parse_acl_blob(const DATA_BLOB *pblob,
  35                                 uint32 security_info,
  36                                 struct security_descriptor **ppdesc)
  37 {
  38         TALLOC_CTX *ctx = talloc_tos();
  39         struct xattr_NTACL xacl;
  40         enum ndr_err_code ndr_err;
  41         size_t sd_size;
  42
  43         ndr_err = ndr_pull_struct_blob(pblob, ctx, NULL, &xacl,
  44                         (ndr_pull_flags_fn_t)ndr_pull_xattr_NTACL);
  45
  46         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
  47                 DEBUG(5, ("parse_acl_blob: ndr_pull_xattr_NTACL failed: %s\n",
  48                         ndr_errstr(ndr_err)));
  49                 return ndr_map_error2ntstatus(ndr_err);;
  50         }
  51
  52         if (xacl.version != 2) {
  53                 return NT_STATUS_REVISION_MISMATCH;
  54         }
  55
  56         *ppdesc = make_sec_desc(ctx, SEC_DESC_REVISION, xacl.info.sd_ts->sd->type | SEC_DESC_SELF_RELATIVE,
  57                         (security_info & OWNER_SECURITY_INFORMATION)
  58                         ? xacl.info.sd_ts->sd->owner_sid : NULL,
  59                         (security_info & GROUP_SECURITY_INFORMATION)
  60                         ? xacl.info.sd_ts->sd->group_sid : NULL,
  61                         (security_info & SACL_SECURITY_INFORMATION)
  62                         ? xacl.info.sd_ts->sd->sacl : NULL,
  63                         (security_info & DACL_SECURITY_INFORMATION)
  64                         ? xacl.info.sd_ts->sd->dacl : NULL,
  65                         &sd_size);
  66
  67         TALLOC_FREE(xacl.info.sd);
  68
  69         return (*ppdesc != NULL) ? NT_STATUS_OK : NT_STATUS_NO_MEMORY;
  70 }
  71
  72 /*******************************************************************
  73  Pull a security descriptor into a DATA_BLOB from a xattr.
  74 *******************************************************************/
  75
  76 static NTSTATUS get_acl_blob(TALLOC_CTX *ctx,
  77                         vfs_handle_struct *handle,
  78                         files_struct *fsp,
  79                         const char *name,
  80                         DATA_BLOB *pblob)
  81 {
  82         size_t size = 1024;
  83         uint8_t *val = NULL;
  84         uint8_t *tmp;
  85         ssize_t sizeret;
  86         int saved_errno = 0;
  87
  88         ZERO_STRUCTP(pblob);
  89
  90   again:
  91
  92         tmp = TALLOC_REALLOC_ARRAY(ctx, val, uint8_t, size);
  93         if (tmp == NULL) {
  94                 TALLOC_FREE(val);
  95                 return NT_STATUS_NO_MEMORY;
  96         }
  97         val = tmp;
  98
  99         become_root();
 100         if (fsp && fsp->fh->fd != -1) {
 101                 sizeret = SMB_VFS_FGETXATTR(fsp, XATTR_NTACL_NAME, val, size);
 102         } else {
 103                 sizeret = SMB_VFS_GETXATTR(handle->conn, name,
 104                                         XATTR_NTACL_NAME, val, size);
 105         }
 106         if (sizeret == -1) {
 107                 saved_errno = errno;
 108         }
 109         unbecome_root();
 110
 111         /* Max ACL size is 65536 bytes. */
 112         if (sizeret == -1) {
 113                 errno = saved_errno;
 114                 if ((errno == ERANGE) && (size != 65536)) {
 115                         /* Too small, try again. */
 116                         size = 65536;
 117                         goto again;
 118                 }
 119
 120                 /* Real error - exit here. */
 121                 TALLOC_FREE(val);
 122                 return map_nt_error_from_unix(errno);
 123         }
 124
 125         pblob->data = val;
 126         pblob->length = sizeret;
 127         return NT_STATUS_OK;
 128 }
 129
 130 /*******************************************************************
 131  Create a DATA_BLOB from a security descriptor.
 132 *******************************************************************/
 133
 134 static NTSTATUS create_acl_blob(const struct security_descriptor *psd, DATA_BLOB *pblob)
 135 {
 136         struct xattr_NTACL xacl;
 137         struct security_descriptor_timestamp sd_ts;
 138         enum ndr_err_code ndr_err;
 139         TALLOC_CTX *ctx = talloc_tos();
 140         struct timespec curr = timespec_current();
 141
 142         ZERO_STRUCT(xacl);
 143         ZERO_STRUCT(sd_ts);
 144
 145         /* Horrid hack as setting an xattr changes the ctime
 146          * on Linux. This gives a race of 1 second during
 147          * which we would not see a POSIX ACL set.
 148          */
 149         curr.tv_sec += 1;
 150
 151         xacl.version = 2;
 152         xacl.info.sd_ts = &sd_ts;
 153         xacl.info.sd_ts->sd = CONST_DISCARD(struct security_descriptor *, psd);
 154         unix_timespec_to_nt_time(&xacl.info.sd_ts->last_changed, curr);
 155
 156         DEBUG(10, ("create_acl_blob: timestamp stored as %s\n",
 157                 timestring(ctx, curr.tv_sec) ));
 158
 159         ndr_err = ndr_push_struct_blob(
 160                         pblob, ctx, NULL, &xacl,
 161                         (ndr_push_flags_fn_t)ndr_push_xattr_NTACL);
 162
 163         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 164                 DEBUG(5, ("create_acl_blob: ndr_push_xattr_NTACL failed: %s\n",
 165                         ndr_errstr(ndr_err)));
 166                 return ndr_map_error2ntstatus(ndr_err);;
 167         }
 168
 169         return NT_STATUS_OK;
 170 }
 171
 172 /*******************************************************************
 173  Store a DATA_BLOB into an xattr given an fsp pointer.
 174 *******************************************************************/
 175
 176 static NTSTATUS store_acl_blob_fsp(vfs_handle_struct *handle,
 177                                 files_struct *fsp,
 178                                 DATA_BLOB *pblob)
 179 {
 180         int ret;
 181         int saved_errno = 0;
 182
 183         DEBUG(10,("store_acl_blob_fsp: storing blob length %u on file %s\n",
 184                         (unsigned int)pblob->length, fsp->fsp_name));
 185
 186         become_root();
 187         if (fsp->fh->fd != -1) {
 188                 ret = SMB_VFS_FSETXATTR(fsp, XATTR_NTACL_NAME,
 189                         pblob->data, pblob->length, 0);
 190         } else {
 191                 ret = SMB_VFS_SETXATTR(fsp->conn, fsp->fsp_name,
 192                                 XATTR_NTACL_NAME,
 193                                 pblob->data, pblob->length, 0);
 194         }
 195         if (ret) {
 196                 saved_errno = errno;
 197         }
 198         unbecome_root();
 199         if (ret) {
 200                 errno = saved_errno;
 201                 DEBUG(5, ("store_acl_blob_fsp: setting attr failed for file %s"
 202                         "with error %s\n",
 203                         fsp->fsp_name,
 204                         strerror(errno) ));
 205                 return map_nt_error_from_unix(errno);
 206         }
 207         return NT_STATUS_OK;
 208 }
 209
 210 /*******************************************************************
 211  Store a DATA_BLOB into an xattr given a pathname.
 212 *******************************************************************/
 213
 214 static NTSTATUS store_acl_blob_pathname(vfs_handle_struct *handle,
 215                                         const char *fname,
 216                                         DATA_BLOB *pblob)
 217 {
 218         connection_struct *conn = handle->conn;
 219         int ret;
 220         int saved_errno = 0;
 221
 222         DEBUG(10,("store_acl_blob_pathname: storing blob "
 223                         "length %u on file %s\n",
 224                         (unsigned int)pblob->length, fname));
 225
 226         become_root();
 227         ret = SMB_VFS_SETXATTR(conn, fname,
 228                                 XATTR_NTACL_NAME,
 229                                 pblob->data, pblob->length, 0);
 230         if (ret) {
 231                 saved_errno = errno;
 232         }
 233         unbecome_root();
 234         if (ret) {
 235                 errno = saved_errno;
 236                 DEBUG(5, ("store_acl_blob_pathname: setting attr failed "
 237                         "for file %s with error %s\n",
 238                         fname,
 239                         strerror(errno) ));
 240                 return map_nt_error_from_unix(errno);
 241         }
 242         return NT_STATUS_OK;
 243 }
 244
 245 /*******************************************************************
 246  Store a DATA_BLOB into an xattr given a pathname.
 247 *******************************************************************/
 248
 249 static NTSTATUS get_nt_acl_xattr_internal(vfs_handle_struct *handle,
 250                                         files_struct *fsp,
 251                                         const char *name,
 252                                         uint32 security_info,
 253                                         struct security_descriptor **ppdesc)
 254 {
 255         TALLOC_CTX *ctx = talloc_tos();
 256         DATA_BLOB blob;
 257         NTSTATUS status;
 258
 259         if (fsp && name == NULL) {
 260                 name = fsp->fsp_name;
 261         }
 262
 263         DEBUG(10, ("get_nt_acl_xattr_internal: name=%s\n", name));
 264
 265         status = get_acl_blob(ctx, handle, fsp, name, &blob);
 266         if (!NT_STATUS_IS_OK(status)) {
 267                 DEBUG(10, ("get_acl_blob returned %s\n", nt_errstr(status)));
 268                 return status;
 269         }
 270
 271         status = parse_acl_blob(&blob, security_info, ppdesc);
 272         if (!NT_STATUS_IS_OK(status)) {
 273                 DEBUG(10, ("parse_acl_blob returned %s\n",
 274                                 nt_errstr(status)));
 275                 return status;
 276         }
 277
 278         TALLOC_FREE(blob.data);
 279         return status;
 280 }
 281
 282 /*********************************************************************
 283  Create a default security descriptor for a file in case no inheritance
 284  exists. All permissions to the owner and SYSTEM.
 285 *********************************************************************/
 286
 287 static struct security_descriptor *default_file_sd(TALLOC_CTX *mem_ctx,
 288                                                 SMB_STRUCT_STAT *psbuf)
 289 {
 290         struct dom_sid owner_sid, group_sid;
 291         size_t sd_size;
 292         struct security_ace *pace = NULL;
 293         struct security_acl *pacl = NULL;
 294
 295         uid_to_sid(&owner_sid, psbuf->st_uid);
 296         gid_to_sid(&group_sid, psbuf->st_gid);
 297
 298         pace = TALLOC_ARRAY(mem_ctx, struct security_ace, 2);
 299         if (!pace) {
 300                 return NULL;
 301         }
 302
 303         init_sec_ace(&pace[0], &owner_sid, SEC_ACE_TYPE_ACCESS_ALLOWED,
 304                         SEC_RIGHTS_FILE_ALL, 0);
 305         init_sec_ace(&pace[1], &global_sid_System, SEC_ACE_TYPE_ACCESS_ALLOWED,
 306                         SEC_RIGHTS_FILE_ALL, 0);
 307
 308         pacl = make_sec_acl(mem_ctx,
 309                                 NT4_ACL_REVISION,
 310                                 2,
 311                                 pace);
 312         if (!pacl) {
 313                 return NULL;
 314         }
 315         return make_sec_desc(mem_ctx,
 316                         SECURITY_DESCRIPTOR_REVISION_1,
 317                         SEC_DESC_SELF_RELATIVE|SEC_DESC_DACL_PRESENT,
 318                         &owner_sid,
 319                         &group_sid,
 320                         NULL,
 321                         pacl,
 322                         &sd_size);
 323 }
 324
 325 /*********************************************************************
 326 *********************************************************************/
 327
 328 static NTSTATUS inherit_new_acl(vfs_handle_struct *handle,
 329                                         const char *fname,
 330                                         files_struct *fsp,
 331                                         bool container)
 332 {
 333         TALLOC_CTX *ctx = talloc_tos();
 334         NTSTATUS status;
 335         struct security_descriptor *parent_desc = NULL;
 336         struct security_descriptor *psd = NULL;
 337         DATA_BLOB blob;
 338         size_t size;
 339         char *parent_name;
 340
 341         if (!parent_dirname_talloc(ctx,
 342                                 fname,
 343                                 &parent_name,
 344                                 NULL)) {
 345                 return NT_STATUS_NO_MEMORY;
 346         }
 347
 348         DEBUG(10,("inherit_new_acl: check directory %s\n",
 349                         parent_name));
 350
 351         status = get_nt_acl_xattr_internal(handle,
 352                                         NULL,
 353                                         parent_name,
 354                                         (OWNER_SECURITY_INFORMATION |
 355                                          GROUP_SECURITY_INFORMATION |
 356                                          DACL_SECURITY_INFORMATION),
 357                                         &parent_desc);
 358         if (NT_STATUS_IS_OK(status)) {
 359                 /* Create an inherited descriptor from the parent. */
 360
 361                 if (DEBUGLEVEL >= 10) {
 362                         DEBUG(10,("inherit_new_acl: parent acl is:\n"));
 363                         NDR_PRINT_DEBUG(security_descriptor, parent_desc);
 364                 }
 365
 366                 status = se_create_child_secdesc(ctx,
 367                                 &psd,
 368                                 &size,
 369                                 parent_desc,
 370                                 &handle->conn->server_info->ptok->user_sids[PRIMARY_USER_SID_INDEX],
 371                                 &handle->conn->server_info->ptok->user_sids[PRIMARY_GROUP_SID_INDEX],
 372                                 container);
 373                 if (!NT_STATUS_IS_OK(status)) {
 374                         return status;
 375                 }
 376
 377                 if (DEBUGLEVEL >= 10) {
 378                         DEBUG(10,("inherit_new_acl: child acl is:\n"));
 379                         NDR_PRINT_DEBUG(security_descriptor, psd);
 380                 }
 381
 382         } else {
 383                 DEBUG(10,("inherit_new_acl: directory %s failed "
 384                         "to get acl %s\n",
 385                         parent_name,
 386                         nt_errstr(status) ));
 387         }
 388
 389         if (!psd || psd->dacl == NULL) {
 390                 SMB_STRUCT_STAT sbuf;
 391                 int ret;
 392
 393                 TALLOC_FREE(psd);
 394                 if (fsp && !fsp->is_directory && fsp->fh->fd != -1) {
 395                         ret = SMB_VFS_FSTAT(fsp, &sbuf);
 396                 } else {
 397                         ret = SMB_VFS_STAT(handle->conn,fname, &sbuf);
 398                 }
 399                 if (ret == -1) {
 400                         return map_nt_error_from_unix(errno);
 401                 }
 402                 psd = default_file_sd(ctx, &sbuf);
 403                 if (!psd) {
 404                         return NT_STATUS_NO_MEMORY;
 405                 }
 406
 407                 if (DEBUGLEVEL >= 10) {
 408                         DEBUG(10,("inherit_new_acl: default acl is:\n"));
 409                         NDR_PRINT_DEBUG(security_descriptor, psd);
 410                 }
 411         }
 412
 413         status = create_acl_blob(psd, &blob);
 414         if (!NT_STATUS_IS_OK(status)) {
 415                 return status;
 416         }
 417         if (fsp) {
 418                 return store_acl_blob_fsp(handle, fsp, &blob);
 419         } else {
 420                 return store_acl_blob_pathname(handle, fname, &blob);
 421         }
 422 }
 423
 424 /*********************************************************************
 425  Check ACL on open. For new files inherit from parent directory.
 426 *********************************************************************/
 427
 428 static int open_acl_xattr(vfs_handle_struct *handle,
 429                                         const char *fname,
 430                                         files_struct *fsp,
 431                                         int flags,
 432                                         mode_t mode)
 433 {
 434         uint32_t access_granted = 0;
 435         struct security_descriptor *pdesc = NULL;
 436         bool file_existed = true;
 437         NTSTATUS status = get_nt_acl_xattr_internal(handle,
 438                                         NULL,
 439                                         fname,
 440                                         (OWNER_SECURITY_INFORMATION |
 441                                          GROUP_SECURITY_INFORMATION |
 442                                          DACL_SECURITY_INFORMATION),
 443                                         &pdesc);
 444         if (NT_STATUS_IS_OK(status)) {
 445                 /* See if we can access it. */
 446                 status = smb1_file_se_access_check(pdesc,
 447                                         handle->conn->server_info->ptok,
 448                                         fsp->access_mask,
 449                                         &access_granted);
 450                 if (!NT_STATUS_IS_OK(status)) {
 451                         DEBUG(10,("open_acl_xattr: file %s open "
 452                                 "refused with error %s\n",
 453                                 fname,
 454                                 nt_errstr(status) ));
 455                         errno = map_errno_from_nt_status(status);
 456                         return -1;
 457                 }
 458         } else if (NT_STATUS_EQUAL(status,NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
 459                 file_existed = false;
 460         }
 461
 462         DEBUG(10,("open_acl_xattr: get_nt_acl_attr_internal for "
 463                 "file %s returned %s\n",
 464                 fname,
 465                 nt_errstr(status) ));
 466
 467         fsp->fh->fd = SMB_VFS_NEXT_OPEN(handle, fname, fsp, flags, mode);
 468
 469         if (!file_existed && fsp->fh->fd != -1) {
 470                 /* File was created. Inherit from parent directory. */
 471                 string_set(&fsp->fsp_name, fname);
 472                 inherit_new_acl(handle, fname, fsp, false);
 473         }
 474
 475         return fsp->fh->fd;
 476 }
 477
 478 static int mkdir_acl_xattr(vfs_handle_struct *handle, const char *path, mode_t mode)
 479 {
 480         int ret = SMB_VFS_NEXT_MKDIR(handle, path, mode);
 481
 482         if (ret == -1) {
 483                 return ret;
 484         }
 485         /* New directory - inherit from parent. */
 486         inherit_new_acl(handle, path, NULL, true);
 487         return ret;
 488 }
 489
 490 /*********************************************************************
 491  Fetch a security descriptor given an fsp.
 492 *********************************************************************/
 493
 494 static NTSTATUS fget_nt_acl_xattr(vfs_handle_struct *handle, files_struct *fsp,
 495         uint32 security_info, struct security_descriptor **ppdesc)
 496 {
 497         NTSTATUS status = get_nt_acl_xattr_internal(handle, fsp,
 498                                 NULL, security_info, ppdesc);
 499         if (NT_STATUS_IS_OK(status)) {
 500                 if (DEBUGLEVEL >= 10) {
 501                         DEBUG(10,("fget_nt_acl_xattr: returning xattr sd for file %s\n",
 502                                 fsp->fsp_name));
 503                         NDR_PRINT_DEBUG(security_descriptor, *ppdesc);
 504                 }
 505                 return NT_STATUS_OK;
 506         }
 507
 508         DEBUG(10,("fget_nt_acl_xattr: failed to get xattr sd for file %s, Error %s\n",
 509                         fsp->fsp_name,
 510                         nt_errstr(status) ));
 511
 512         return SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp,
 513                         security_info, ppdesc);
 514 }
 515
 516 /*********************************************************************
 517  Fetch a security descriptor given a pathname.
 518 *********************************************************************/
 519
 520 static NTSTATUS get_nt_acl_xattr(vfs_handle_struct *handle,
 521         const char *name, uint32 security_info, struct security_descriptor **ppdesc)
 522 {
 523         NTSTATUS status = get_nt_acl_xattr_internal(handle, NULL,
 524                                 name, security_info, ppdesc);
 525         if (NT_STATUS_IS_OK(status)) {
 526                 if (DEBUGLEVEL >= 10) {
 527                         DEBUG(10,("get_nt_acl_xattr: returning xattr sd for file %s\n",
 528                                 name));
 529                         NDR_PRINT_DEBUG(security_descriptor, *ppdesc);
 530                 }
 531                 return NT_STATUS_OK;
 532         }
 533
 534         DEBUG(10,("get_nt_acl_xattr: failed to get xattr sd for file %s, Error %s\n",
 535                         name,
 536                         nt_errstr(status) ));
 537
 538         return SMB_VFS_NEXT_GET_NT_ACL(handle, name,
 539                         security_info, ppdesc);
 540 }
 541
 542 /*********************************************************************
 543  Store a security descriptor given an fsp.
 544 *********************************************************************/
 545
 546 static NTSTATUS fset_nt_acl_xattr(vfs_handle_struct *handle, files_struct *fsp,
 547         uint32 security_info_sent, const struct security_descriptor *psd)
 548 {
 549         NTSTATUS status;
 550         DATA_BLOB blob;
 551
 552         if (DEBUGLEVEL >= 10) {
 553                 DEBUG(10,("fset_nt_acl_xattr: incoming sd for file %s\n",
 554                         fsp->fsp_name));
 555                 NDR_PRINT_DEBUG(security_descriptor,
 556                         CONST_DISCARD(struct security_descriptor *,psd));
 557         }
 558
 559         status = SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
 560         if (!NT_STATUS_IS_OK(status)) {
 561                 return status;
 562         }
 563
 564         /* Ensure owner and group are set. */
 565         if (!psd->owner_sid || !psd->group_sid) {
 566                 int ret;
 567                 SMB_STRUCT_STAT sbuf;
 568                 DOM_SID owner_sid, group_sid;
 569                 struct security_descriptor *nc_psd = dup_sec_desc(talloc_tos(), psd);
 570
 571                 if (!nc_psd) {
 572                         return NT_STATUS_OK;
 573                 }
 574                 if (fsp->is_directory || fsp->fh->fd == -1) {
 575                         ret = SMB_VFS_STAT(fsp->conn,fsp->fsp_name, &sbuf);
 576                 } else {
 577                         ret = SMB_VFS_FSTAT(fsp, &sbuf);
 578                 }
 579                 if (ret == -1) {
 580                         /* Lower level acl set succeeded,
 581                          * so still return OK. */
 582                         return NT_STATUS_OK;
 583                 }
 584                 create_file_sids(&sbuf, &owner_sid, &group_sid);
 585                 /* This is safe as nc_psd is discarded at fn exit. */
 586                 nc_psd->owner_sid = &owner_sid;
 587                 nc_psd->group_sid = &group_sid;
 588                 security_info_sent |= (OWNER_SECURITY_INFORMATION|GROUP_SECURITY_INFORMATION);
 589                 psd = nc_psd;
 590         }
 591
 592         if ((security_info_sent & DACL_SECURITY_INFORMATION) &&
 593                         psd->dacl != NULL &&
 594                         (psd->type & (SE_DESC_DACL_AUTO_INHERITED|
 595                                 SE_DESC_DACL_AUTO_INHERIT_REQ))==
 596                                 (SE_DESC_DACL_AUTO_INHERITED|
 597                                 SE_DESC_DACL_AUTO_INHERIT_REQ) ) {
 598                 struct security_descriptor *new_psd = NULL;
 599                 status = append_parent_acl(fsp, psd, &new_psd);
 600                 if (!NT_STATUS_IS_OK(status)) {
 601                         /* Lower level acl set succeeded,
 602                          * so still return OK. */
 603                         return NT_STATUS_OK;
 604                 }
 605                 psd = new_psd;
 606         }
 607
 608         if (DEBUGLEVEL >= 10) {
 609                 DEBUG(10,("fset_nt_acl_xattr: storing xattr sd for file %s\n",
 610                         fsp->fsp_name));
 611                 NDR_PRINT_DEBUG(security_descriptor,
 612                         CONST_DISCARD(struct security_descriptor *,psd));
 613         }
 614         create_acl_blob(psd, &blob);
 615         store_acl_blob_fsp(handle, fsp, &blob);
 616
 617         return NT_STATUS_OK;
 618 }
 619
 620 /* VFS operations structure */
 621
 622 static vfs_op_tuple skel_op_tuples[] =
 623 {
 624         {SMB_VFS_OP(mkdir_acl_xattr), SMB_VFS_OP_MKDIR, SMB_VFS_LAYER_TRANSPARENT},
 625         {SMB_VFS_OP(open_acl_xattr),  SMB_VFS_OP_OPEN,  SMB_VFS_LAYER_TRANSPARENT},
 626
 627         /* NT File ACL operations */
 628
 629         {SMB_VFS_OP(fget_nt_acl_xattr),SMB_VFS_OP_FGET_NT_ACL,SMB_VFS_LAYER_TRANSPARENT},
 630         {SMB_VFS_OP(get_nt_acl_xattr), SMB_VFS_OP_GET_NT_ACL, SMB_VFS_LAYER_TRANSPARENT},
 631         {SMB_VFS_OP(fset_nt_acl_xattr),SMB_VFS_OP_FSET_NT_ACL,SMB_VFS_LAYER_TRANSPARENT},
 632
 633         {SMB_VFS_OP(NULL), SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
 634 };
 635
 636 NTSTATUS vfs_acl_xattr_init(void)
 637 {
 638         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "acl_xattr", skel_op_tuples);
 639 }