source3/modules/vfs_glusterfs.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Wrap GlusterFS GFAPI calls in vfs functions.
   5
   6    Copyright (c) 2013 Anand Avati <avati@redhat.com>
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "smbd/smbd.h"
  24 #include <stdio.h>
  25 #include "api/glfs.h"
  26 #include "lib/util/dlinklist.h"
  27
  28 #define DEFAULT_VOLFILE_SERVER "localhost"
  29
  30 /*
  31   TODO
  32   ----
  33   Short term:
  34   - AIO support
  35   - sendfile/recvfile support
  36 */
  37
  38 /* Helpers to provide 'integer' fds */
  39
  40 /* This is global. gfapi's FD operations do not
  41    require filesystem context.
  42 */
  43
  44 static glfs_fd_t **glfd_fd;
  45 static int glfd_fd_size;
  46 static int glfd_fd_used;
  47
  48 static int glfd_fd_store(glfs_fd_t *glfd)
  49 {
  50         int i;
  51         void *tmp;
  52
  53         if (glfd_fd_size == glfd_fd_used) {
  54                 if (glfd_fd_size >= INT_MAX - 1) {
  55                         errno = ENOMEM;
  56                         return -1;
  57                 }
  58
  59                 tmp = talloc_realloc(glfd_fd, glfd_fd, glfs_fd_t *,
  60                                      glfd_fd_size + 1);
  61                 if (tmp == NULL) {
  62                         errno = ENOMEM;
  63                         return -1;
  64                 }
  65
  66                 glfd_fd = tmp;
  67                 glfd_fd[glfd_fd_size] = 0;
  68                 glfd_fd_size++;
  69         }
  70
  71         for (i = 0; i < glfd_fd_size; i++) {
  72                 if (glfd_fd[i] == NULL) {
  73                         break;
  74                 }
  75         }
  76         glfd_fd_used++;
  77         glfd_fd[i] = glfd;
  78         return i;
  79 }
  80
  81 static glfs_fd_t *glfd_fd_get(int i)
  82 {
  83         if (i < 0 || i >= glfd_fd_size) {
  84                 return NULL;
  85         }
  86         return glfd_fd[i];
  87 }
  88
  89 static glfs_fd_t *glfd_fd_clear(int i)
  90 {
  91         glfs_fd_t *glfd = NULL;
  92
  93         if (i < 0 || i >= glfd_fd_size) {
  94                 return NULL;
  95         }
  96
  97         glfd = glfd_fd[i];
  98
  99         glfd_fd[i] = 0;
 100         glfd_fd_used--;
 101         return glfd;
 102 }
 103
 104 /* Helper to convert stat to stat_ex */
 105
 106 static void smb_stat_ex_from_stat(struct stat_ex *dst, const struct stat *src)
 107 {
 108         ZERO_STRUCTP(dst);
 109
 110         dst->st_ex_dev = src->st_dev;
 111         dst->st_ex_ino = src->st_ino;
 112         dst->st_ex_mode = src->st_mode;
 113         dst->st_ex_nlink = src->st_nlink;
 114         dst->st_ex_uid = src->st_uid;
 115         dst->st_ex_gid = src->st_gid;
 116         dst->st_ex_rdev = src->st_rdev;
 117         dst->st_ex_size = src->st_size;
 118         dst->st_ex_atime.tv_sec = src->st_atime;
 119 #ifdef STAT_HAVE_NSEC
 120         dst->st_ex_atime.tv_nsec = src->st_atime_nsec;
 121 #endif
 122         dst->st_ex_mtime.tv_sec = src->st_mtime;
 123 #ifdef STAT_HAVE_NSEC
 124         dst->st_ex_mtime.tv_nsec = src->st_mtime_nsec;
 125 #endif
 126         dst->st_ex_ctime.tv_sec = src->st_ctime;
 127 #ifdef STAT_HAVE_NSEC
 128         dst->st_ex_ctime.tv_nsec = src->st_ctime_nsec;
 129 #endif
 130         dst->st_ex_btime.tv_sec = src->st_mtime;
 131 #ifdef STAT_HAVE_NSEC
 132         dst->st_ex_btime.tv_nsec = src->st_mtime_nsec;
 133 #endif
 134         dst->st_ex_blksize = src->st_blksize;
 135         dst->st_ex_blocks = src->st_blocks;
 136 }
 137
 138 /* pre-opened glfs_t */
 139
 140 static struct glfs_preopened {
 141         char *volume;
 142         glfs_t *fs;
 143         int ref;
 144         struct glfs_preopened *next, *prev;
 145 } *glfs_preopened;
 146
 147
 148 int glfs_set_preopened(const char *volume, glfs_t *fs)
 149 {
 150         struct glfs_preopened *entry = NULL;
 151
 152         entry = talloc_zero(NULL, struct glfs_preopened);
 153         if (!entry) {
 154                 errno = ENOMEM;
 155                 return -1;
 156         }
 157
 158         entry->volume = talloc_strdup(entry, volume);
 159         if (!entry->volume) {
 160                 talloc_free(entry);
 161                 errno = ENOMEM;
 162                 return -1;
 163         }
 164
 165         entry->fs = fs;
 166         entry->ref = 1;
 167
 168         DLIST_ADD(glfs_preopened, entry);
 169
 170         return 0;
 171 }
 172
 173 static glfs_t *glfs_find_preopened(const char *volume)
 174 {
 175         struct glfs_preopened *entry = NULL;
 176
 177         for (entry = glfs_preopened; entry; entry = entry->next) {
 178                 if (strcmp(entry->volume, volume) == 0) {
 179                         entry->ref++;
 180                         return entry->fs;
 181                 }
 182         }
 183
 184         return NULL;
 185 }
 186
 187 static void glfs_clear_preopened(glfs_t *fs)
 188 {
 189         struct glfs_preopened *entry = NULL;
 190
 191         for (entry = glfs_preopened; entry; entry = entry->next) {
 192                 if (entry->fs == fs) {
 193                         if (--entry->ref)
 194                                 return;
 195
 196                         DLIST_REMOVE(glfs_preopened, entry);
 197
 198                         glfs_fini(entry->fs);
 199                         talloc_free(entry);
 200                 }
 201         }
 202 }
 203
 204 /* Disk Operations */
 205
 206 static int vfs_gluster_connect(struct vfs_handle_struct *handle,
 207                                const char *service,
 208                                const char *user)
 209 {
 210         const char *volfile_server;
 211         const char *volume;
 212         const char *logfile;
 213         int loglevel;
 214         glfs_t *fs;
 215         int ret;
 216
 217         logfile = lp_parm_const_string(SNUM(handle->conn), "glusterfs",
 218                                        "logfile", NULL);
 219
 220         loglevel = lp_parm_int(SNUM(handle->conn), "glusterfs", "loglevel", -1);
 221
 222         volfile_server = lp_parm_const_string(SNUM(handle->conn), "glusterfs",
 223                                                "volfile_server", NULL);
 224         if (volfile_server == NULL) {
 225                 volfile_server = DEFAULT_VOLFILE_SERVER;
 226         }
 227
 228         volume = lp_parm_const_string(SNUM(handle->conn), "glusterfs", "volume",
 229                                       NULL);
 230         if (volume == NULL) {
 231                 volume = service;
 232         }
 233
 234         fs = glfs_find_preopened(volume);
 235         if (fs) {
 236                 goto found;
 237         }
 238
 239         fs = glfs_new(volume);
 240         if (fs == NULL) {
 241                 return -1;
 242         }
 243
 244         ret = glfs_set_volfile_server(fs, "tcp", volfile_server, 0);
 245         if (ret < 0) {
 246                 DEBUG(0, ("Failed to set volfile_server %s\n", volfile_server));
 247                 glfs_fini(fs);
 248                 return -1;
 249         }
 250
 251         ret = glfs_set_xlator_option(fs, "*-md-cache", "cache-posix-acl",
 252                                      "true");
 253         if (ret < 0) {
 254                 DEBUG(0, ("%s: Failed to set xlator options\n", volume));
 255                 glfs_fini(fs);
 256                 return -1;
 257         }
 258
 259         ret = glfs_set_logging(fs, logfile, loglevel);
 260         if (ret < 0) {
 261                 DEBUG(0, ("%s: Failed to set logfile %s loglevel %d\n",
 262                           volume, logfile, loglevel));
 263                 glfs_fini(fs);
 264                 return -1;
 265         }
 266
 267         ret = glfs_init(fs);
 268         if (ret < 0) {
 269                 DEBUG(0, ("%s: Failed to initialize volume (%s)\n",
 270                           volume, strerror(errno)));
 271                 glfs_fini(fs);
 272                 return -1;
 273         }
 274
 275         ret = glfs_set_preopened(volume, fs);
 276         if (ret < 0) {
 277                 DEBUG(0, ("%s: Failed to register volume (%s)\n",
 278                           volume, strerror(errno)));
 279                 glfs_fini(fs);
 280                 return -1;
 281         }
 282 found:
 283         DEBUG(0, ("%s: Initialized volume from server %s\n",
 284                   volume, volfile_server));
 285         handle->data = fs;
 286         return 0;
 287 }
 288
 289 static void vfs_gluster_disconnect(struct vfs_handle_struct *handle)
 290 {
 291         glfs_t *fs = NULL;
 292
 293         fs = handle->data;
 294
 295         glfs_clear_preopened(fs);
 296 }
 297
 298 static uint64_t vfs_gluster_disk_free(struct vfs_handle_struct *handle,
 299                                       const char *path, bool small_query,
 300                                       uint64_t *bsize_p, uint64_t *dfree_p,
 301                                       uint64_t *dsize_p)
 302 {
 303         struct statvfs statvfs = { 0, };
 304         uint64_t dfree = 0;
 305         int ret;
 306
 307         ret = glfs_statvfs(handle->data, path, &statvfs);
 308         if (ret < 0) {
 309                 return -1;
 310         }
 311
 312         dfree = statvfs.f_bsize * statvfs.f_bavail;
 313
 314         if (bsize_p != NULL) {
 315                 *bsize_p = statvfs.f_bsize;
 316         }
 317         if (dfree_p != NULL) {
 318                 *dfree_p = dfree;
 319         }
 320         if (dsize_p != NULL) {
 321                 *dsize_p = statvfs.f_bsize * statvfs.f_blocks;
 322         }
 323
 324         return dfree;
 325 }
 326
 327 static int vfs_gluster_get_quota(struct vfs_handle_struct *handle,
 328                                  enum SMB_QUOTA_TYPE qtype, unid_t id,
 329                                  SMB_DISK_QUOTA *qt)
 330 {
 331         errno = ENOSYS;
 332         return -1;
 333 }
 334
 335 static int
 336 vfs_gluster_set_quota(struct vfs_handle_struct *handle,
 337                       enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt)
 338 {
 339         errno = ENOSYS;
 340         return -1;
 341 }
 342
 343 static int vfs_gluster_statvfs(struct vfs_handle_struct *handle,
 344                                const char *path,
 345                                struct vfs_statvfs_struct *vfs_statvfs)
 346 {
 347         struct statvfs statvfs = { 0, };
 348         int ret;
 349
 350         ret = glfs_statvfs(handle->data, path, &statvfs);
 351         if (ret < 0) {
 352                 DEBUG(0, ("glfs_statvfs(%s) failed: %s\n",
 353                           path, strerror(errno)));
 354                 return -1;
 355         }
 356
 357         ZERO_STRUCTP(vfs_statvfs);
 358
 359         vfs_statvfs->OptimalTransferSize = statvfs.f_frsize;
 360         vfs_statvfs->BlockSize = statvfs.f_bsize;
 361         vfs_statvfs->TotalBlocks = statvfs.f_blocks;
 362         vfs_statvfs->BlocksAvail = statvfs.f_bfree;
 363         vfs_statvfs->UserBlocksAvail = statvfs.f_bavail;
 364         vfs_statvfs->TotalFileNodes = statvfs.f_files;
 365         vfs_statvfs->FreeFileNodes = statvfs.f_ffree;
 366         vfs_statvfs->FsIdentifier = statvfs.f_fsid;
 367         vfs_statvfs->FsCapabilities =
 368             FILE_CASE_SENSITIVE_SEARCH | FILE_CASE_PRESERVED_NAMES;
 369
 370         return ret;
 371 }
 372
 373 static uint32_t vfs_gluster_fs_capabilities(struct vfs_handle_struct *handle,
 374                                             enum timestamp_set_resolution *p_ts_res)
 375 {
 376         uint32_t caps = FILE_CASE_SENSITIVE_SEARCH | FILE_CASE_PRESERVED_NAMES;
 377
 378 #ifdef STAT_HAVE_NSEC
 379         *p_ts_res = TIMESTAMP_SET_NT_OR_BETTER;
 380 #endif
 381
 382         return caps;
 383 }
 384
 385 static DIR *vfs_gluster_opendir(struct vfs_handle_struct *handle,
 386                                 const char *path, const char *mask,
 387                                 uint32 attributes)
 388 {
 389         glfs_fd_t *fd;
 390
 391         fd = glfs_opendir(handle->data, path);
 392         if (fd == NULL) {
 393                 DEBUG(0, ("glfs_opendir(%s) failed: %s\n",
 394                           path, strerror(errno)));
 395         }
 396
 397         return (DIR *) fd;
 398 }
 399
 400 static DIR *vfs_gluster_fdopendir(struct vfs_handle_struct *handle,
 401                                   files_struct *fsp, const char *mask,
 402                                   uint32 attributes)
 403 {
 404         return (DIR *) glfd_fd_get(fsp->fh->fd);
 405 }
 406
 407 static int vfs_gluster_closedir(struct vfs_handle_struct *handle, DIR *dirp)
 408 {
 409         return glfs_closedir((void *)dirp);
 410 }
 411
 412 static struct dirent *vfs_gluster_readdir(struct vfs_handle_struct *handle,
 413                                           DIR *dirp, SMB_STRUCT_STAT *sbuf)
 414 {
 415         static char direntbuf[512];
 416         int ret;
 417         struct stat stat;
 418         struct dirent *dirent = 0;
 419
 420         if (sbuf != NULL) {
 421                 ret = glfs_readdirplus_r((void *)dirp, &stat, (void *)direntbuf,
 422                                          &dirent);
 423         } else {
 424                 ret = glfs_readdir_r((void *)dirp, (void *)direntbuf, &dirent);
 425         }
 426
 427         if ((ret < 0) || (dirent == NULL)) {
 428                 return NULL;
 429         }
 430
 431         if (sbuf != NULL) {
 432                 smb_stat_ex_from_stat(sbuf, &stat);
 433         }
 434
 435         return dirent;
 436 }
 437
 438 static long vfs_gluster_telldir(struct vfs_handle_struct *handle, DIR *dirp)
 439 {
 440         return glfs_telldir((void *)dirp);
 441 }
 442
 443 static void vfs_gluster_seekdir(struct vfs_handle_struct *handle, DIR *dirp,
 444                                 long offset)
 445 {
 446         glfs_seekdir((void *)dirp, offset);
 447 }
 448
 449 static void vfs_gluster_rewinddir(struct vfs_handle_struct *handle, DIR *dirp)
 450 {
 451         glfs_seekdir((void *)dirp, 0);
 452 }
 453
 454 static void vfs_gluster_init_search_op(struct vfs_handle_struct *handle,
 455                                        DIR *dirp)
 456 {
 457         return;
 458 }
 459
 460 static int vfs_gluster_mkdir(struct vfs_handle_struct *handle, const char *path,
 461                              mode_t mode)
 462 {
 463         return glfs_mkdir(handle->data, path, mode);
 464 }
 465
 466 static int vfs_gluster_rmdir(struct vfs_handle_struct *handle, const char *path)
 467 {
 468         return glfs_rmdir(handle->data, path);
 469 }
 470
 471 static int vfs_gluster_open(struct vfs_handle_struct *handle,
 472                             struct smb_filename *smb_fname, files_struct *fsp,
 473                             int flags, mode_t mode)
 474 {
 475         glfs_fd_t *glfd;
 476
 477         if (flags & O_DIRECTORY) {
 478                 glfd = glfs_opendir(handle->data, smb_fname->base_name);
 479         } else if (flags & O_CREAT) {
 480                 glfd = glfs_creat(handle->data, smb_fname->base_name, flags,
 481                                   mode);
 482         } else {
 483                 glfd = glfs_open(handle->data, smb_fname->base_name, flags);
 484         }
 485
 486         if (glfd == NULL) {
 487                 DEBUG(0, ("glfs_{open[dir],creat}(%s) failed: %s\n",
 488                           smb_fname->base_name, strerror(errno)));
 489                 return -1;
 490         }
 491
 492         return glfd_fd_store(glfd);
 493 }
 494
 495 static int vfs_gluster_close(struct vfs_handle_struct *handle,
 496                              files_struct *fsp)
 497 {
 498         return glfs_close(glfd_fd_clear(fsp->fh->fd));
 499 }
 500
 501 static ssize_t vfs_gluster_read(struct vfs_handle_struct *handle,
 502                                 files_struct *fsp, void *data, size_t n)
 503 {
 504         return glfs_read(glfd_fd_get(fsp->fh->fd), data, n, 0);
 505 }
 506
 507 static ssize_t vfs_gluster_pread(struct vfs_handle_struct *handle,
 508                                  files_struct *fsp, void *data, size_t n,
 509                                  off_t offset)
 510 {
 511         return glfs_pread(glfd_fd_get(fsp->fh->fd), data, n, offset, 0);
 512 }
 513
 514 static struct tevent_req *vfs_gluster_pread_send(struct vfs_handle_struct
 515                                                  *handle, TALLOC_CTX *mem_ctx,
 516                                                  struct tevent_context *ev,
 517                                                  files_struct *fsp, void *data,
 518                                                  size_t n, off_t offset)
 519 {
 520         errno = ENOTSUP;
 521         return NULL;
 522 }
 523
 524 static ssize_t vfs_gluster_pread_recv(struct tevent_req *req, int *err)
 525 {
 526         errno = ENOTSUP;
 527         return -1;
 528 }
 529
 530 static ssize_t vfs_gluster_write(struct vfs_handle_struct *handle,
 531                                  files_struct *fsp, const void *data, size_t n)
 532 {
 533         return glfs_write(glfd_fd_get(fsp->fh->fd), data, n, 0);
 534 }
 535
 536 static ssize_t vfs_gluster_pwrite(struct vfs_handle_struct *handle,
 537                                   files_struct *fsp, const void *data,
 538                                   size_t n, off_t offset)
 539 {
 540         return glfs_pwrite(glfd_fd_get(fsp->fh->fd), data, n, offset, 0);
 541 }
 542
 543 static struct tevent_req *vfs_gluster_pwrite_send(struct vfs_handle_struct
 544                                                   *handle, TALLOC_CTX *mem_ctx,
 545                                                   struct tevent_context *ev,
 546                                                   files_struct *fsp,
 547                                                   const void *data, size_t n,
 548                                                   off_t offset)
 549 {
 550         errno = ENOTSUP;
 551         return NULL;
 552 }
 553
 554 static ssize_t vfs_gluster_pwrite_recv(struct tevent_req *req, int *err)
 555 {
 556         errno = ENOTSUP;
 557         return -1;
 558 }
 559
 560 static off_t vfs_gluster_lseek(struct vfs_handle_struct *handle,
 561                                files_struct *fsp, off_t offset, int whence)
 562 {
 563         return glfs_lseek(glfd_fd_get(fsp->fh->fd), offset, whence);
 564 }
 565
 566 static ssize_t vfs_gluster_sendfile(struct vfs_handle_struct *handle, int tofd,
 567                                     files_struct *fromfsp,
 568                                     const DATA_BLOB *hdr,
 569                                     off_t offset, size_t n)
 570 {
 571         errno = ENOTSUP;
 572         return -1;
 573 }
 574
 575 static ssize_t vfs_gluster_recvfile(struct vfs_handle_struct *handle,
 576                                     int fromfd, files_struct *tofsp,
 577                                     off_t offset, size_t n)
 578 {
 579         errno = ENOTSUP;
 580         return -1;
 581 }
 582
 583 static int vfs_gluster_rename(struct vfs_handle_struct *handle,
 584                               const struct smb_filename *smb_fname_src,
 585                               const struct smb_filename *smb_fname_dst)
 586 {
 587         return glfs_rename(handle->data, smb_fname_src->base_name,
 588                            smb_fname_dst->base_name);
 589 }
 590
 591 static int vfs_gluster_fsync(struct vfs_handle_struct *handle,
 592                              files_struct *fsp)
 593 {
 594         return glfs_fsync(glfd_fd_get(fsp->fh->fd));
 595 }
 596
 597 static struct tevent_req *vfs_gluster_fsync_send(struct vfs_handle_struct
 598                                                  *handle, TALLOC_CTX *mem_ctx,
 599                                                  struct tevent_context *ev,
 600                                                  files_struct *fsp)
 601 {
 602         errno = ENOTSUP;
 603         return NULL;
 604 }
 605
 606 static int vfs_gluster_fsync_recv(struct tevent_req *req, int *err)
 607 {
 608         errno = ENOTSUP;
 609         return -1;
 610 }
 611
 612 static int vfs_gluster_stat(struct vfs_handle_struct *handle,
 613                             struct smb_filename *smb_fname)
 614 {
 615         struct stat st;
 616         int ret;
 617
 618         ret = glfs_stat(handle->data, smb_fname->base_name, &st);
 619         if (ret == 0) {
 620                 smb_stat_ex_from_stat(&smb_fname->st, &st);
 621         }
 622         if (ret < 0 && errno != ENOENT) {
 623                 DEBUG(0, ("glfs_stat(%s) failed: %s\n",
 624                           smb_fname->base_name, strerror(errno)));
 625         }
 626         return ret;
 627 }
 628
 629 static int vfs_gluster_fstat(struct vfs_handle_struct *handle,
 630                              files_struct *fsp, SMB_STRUCT_STAT *sbuf)
 631 {
 632         struct stat st;
 633         int ret;
 634
 635         ret = glfs_fstat(glfd_fd_get(fsp->fh->fd), &st);
 636         if (ret == 0) {
 637                 smb_stat_ex_from_stat(sbuf, &st);
 638         }
 639         if (ret < 0) {
 640                 DEBUG(0, ("glfs_fstat(%d) failed: %s\n",
 641                           fsp->fh->fd, strerror(errno)));
 642         }
 643         return ret;
 644 }
 645
 646 static int vfs_gluster_lstat(struct vfs_handle_struct *handle,
 647                              struct smb_filename *smb_fname)
 648 {
 649         struct stat st;
 650         int ret;
 651
 652         ret = glfs_lstat(handle->data, smb_fname->base_name, &st);
 653         if (ret == 0) {
 654                 smb_stat_ex_from_stat(&smb_fname->st, &st);
 655         }
 656         if (ret < 0 && errno != ENOENT) {
 657                 DEBUG(0, ("glfs_lstat(%s) failed: %s\n",
 658                           smb_fname->base_name, strerror(errno)));
 659         }
 660         return ret;
 661 }
 662
 663 static uint64_t vfs_gluster_get_alloc_size(struct vfs_handle_struct *handle,
 664                                            files_struct *fsp,
 665                                            const SMB_STRUCT_STAT *sbuf)
 666 {
 667         return sbuf->st_ex_blocks * 512;
 668 }
 669
 670 static int vfs_gluster_unlink(struct vfs_handle_struct *handle,
 671                               const struct smb_filename *smb_fname)
 672 {
 673         return glfs_unlink(handle->data, smb_fname->base_name);
 674 }
 675
 676 static int vfs_gluster_chmod(struct vfs_handle_struct *handle,
 677                              const char *path, mode_t mode)
 678 {
 679         return glfs_chmod(handle->data, path, mode);
 680 }
 681
 682 static int vfs_gluster_fchmod(struct vfs_handle_struct *handle,
 683                               files_struct *fsp, mode_t mode)
 684 {
 685         return glfs_fchmod(glfd_fd_get(fsp->fh->fd), mode);
 686 }
 687
 688 static int vfs_gluster_chown(struct vfs_handle_struct *handle,
 689                              const char *path, uid_t uid, gid_t gid)
 690 {
 691         return glfs_chown(handle->data, path, uid, gid);
 692 }
 693
 694 static int vfs_gluster_fchown(struct vfs_handle_struct *handle,
 695                               files_struct *fsp, uid_t uid, gid_t gid)
 696 {
 697         return glfs_fchown(glfd_fd_get(fsp->fh->fd), uid, gid);
 698 }
 699
 700 static int vfs_gluster_lchown(struct vfs_handle_struct *handle,
 701                               const char *path, uid_t uid, gid_t gid)
 702 {
 703         return glfs_lchown(handle->data, path, uid, gid);
 704 }
 705
 706 static int vfs_gluster_chdir(struct vfs_handle_struct *handle, const char *path)
 707 {
 708         return glfs_chdir(handle->data, path);
 709 }
 710
 711 static char *vfs_gluster_getwd(struct vfs_handle_struct *handle)
 712 {
 713         char *cwd;
 714         char *ret;
 715
 716         cwd = calloc(1, PATH_MAX + 1);
 717         if (cwd == NULL) {
 718                 return NULL;
 719         }
 720
 721         ret = glfs_getcwd(handle->data, cwd, PATH_MAX);
 722         if (ret == 0) {
 723                 free(cwd);
 724         }
 725         return ret;
 726 }
 727
 728 static int vfs_gluster_ntimes(struct vfs_handle_struct *handle,
 729                               const struct smb_filename *smb_fname,
 730                               struct smb_file_time *ft)
 731 {
 732         struct timespec times[2];
 733
 734         times[0].tv_sec = ft->atime.tv_sec;
 735         times[0].tv_nsec = ft->atime.tv_nsec;
 736         times[1].tv_sec = ft->mtime.tv_sec;
 737         times[1].tv_nsec = ft->mtime.tv_nsec;
 738
 739         return glfs_utimens(handle->data, smb_fname->base_name, times);
 740 }
 741
 742 static int vfs_gluster_ftruncate(struct vfs_handle_struct *handle,
 743                                  files_struct *fsp, off_t offset)
 744 {
 745         return glfs_ftruncate(glfd_fd_get(fsp->fh->fd), offset);
 746 }
 747
 748 static int vfs_gluster_fallocate(struct vfs_handle_struct *handle,
 749                                  struct files_struct *fsp,
 750                                  enum vfs_fallocate_mode mode,
 751                                  off_t offset, off_t len)
 752 {
 753         errno = ENOTSUP;
 754         return -1;
 755 }
 756
 757 static char *vfs_gluster_realpath(struct vfs_handle_struct *handle,
 758                                   const char *path)
 759 {
 760         return glfs_realpath(handle->data, path, 0);
 761 }
 762
 763 static bool vfs_gluster_lock(struct vfs_handle_struct *handle,
 764                              files_struct *fsp, int op, off_t offset,
 765                              off_t count, int type)
 766 {
 767         struct flock flock = { 0, };
 768         int ret;
 769
 770         flock.l_type = type;
 771         flock.l_whence = SEEK_SET;
 772         flock.l_start = offset;
 773         flock.l_len = count;
 774         flock.l_pid = 0;
 775
 776         ret = glfs_posix_lock(glfd_fd_get(fsp->fh->fd), op, &flock);
 777
 778         if (op == F_GETLK) {
 779                 /* lock query, true if someone else has locked */
 780                 if ((ret != -1) &&
 781                     (flock.l_type != F_UNLCK) &&
 782                     (flock.l_pid != 0) && (flock.l_pid != getpid()))
 783                         return true;
 784                 /* not me */
 785                 return false;
 786         }
 787
 788         if (ret == -1) {
 789                 return false;
 790         }
 791
 792         return true;
 793 }
 794
 795 static int vfs_gluster_kernel_flock(struct vfs_handle_struct *handle,
 796                                     files_struct *fsp, uint32 share_mode,
 797                                     uint32_t access_mask)
 798 {
 799         errno = ENOSYS;
 800         return -1;
 801 }
 802
 803 static int vfs_gluster_linux_setlease(struct vfs_handle_struct *handle,
 804                                       files_struct *fsp, int leasetype)
 805 {
 806         errno = ENOSYS;
 807         return -1;
 808 }
 809
 810 static bool vfs_gluster_getlock(struct vfs_handle_struct *handle,
 811                                 files_struct *fsp, off_t *poffset,
 812                                 off_t *pcount, int *ptype, pid_t *ppid)
 813 {
 814         struct flock flock = { 0, };
 815         int ret;
 816
 817         flock.l_type = *ptype;
 818         flock.l_whence = SEEK_SET;
 819         flock.l_start = *poffset;
 820         flock.l_len = *pcount;
 821         flock.l_pid = 0;
 822
 823         ret = glfs_posix_lock(glfd_fd_get(fsp->fh->fd), F_GETLK, &flock);
 824
 825         if (ret == -1) {
 826                 return false;
 827         }
 828
 829         *ptype = flock.l_type;
 830         *poffset = flock.l_start;
 831         *pcount = flock.l_len;
 832         *ppid = flock.l_pid;
 833
 834         return true;
 835 }
 836
 837 static int vfs_gluster_symlink(struct vfs_handle_struct *handle,
 838                                const char *oldpath, const char *newpath)
 839 {
 840         return glfs_symlink(handle->data, oldpath, newpath);
 841 }
 842
 843 static int vfs_gluster_readlink(struct vfs_handle_struct *handle,
 844                                 const char *path, char *buf, size_t bufsiz)
 845 {
 846         return glfs_readlink(handle->data, path, buf, bufsiz);
 847 }
 848
 849 static int vfs_gluster_link(struct vfs_handle_struct *handle,
 850                             const char *oldpath, const char *newpath)
 851 {
 852         return glfs_link(handle->data, oldpath, newpath);
 853 }
 854
 855 static int vfs_gluster_mknod(struct vfs_handle_struct *handle, const char *path,
 856                              mode_t mode, SMB_DEV_T dev)
 857 {
 858         return glfs_mknod(handle->data, path, mode, dev);
 859 }
 860
 861 static NTSTATUS vfs_gluster_notify_watch(struct vfs_handle_struct *handle,
 862                                          struct sys_notify_context *ctx,
 863                                          const char *path, uint32_t *filter,
 864                                          uint32_t *subdir_filter,
 865                                          void (*callback) (struct sys_notify_context *ctx,
 866                                                            void *private_data,
 867                                                            struct notify_event *ev),
 868                                          void *private_data, void *handle_p)
 869 {
 870         return NT_STATUS_NOT_IMPLEMENTED;
 871 }
 872
 873 static int vfs_gluster_chflags(struct vfs_handle_struct *handle,
 874                                const char *path, unsigned int flags)
 875 {
 876         errno = ENOSYS;
 877         return -1;
 878 }
 879
 880 static int vfs_gluster_get_real_filename(struct vfs_handle_struct *handle,
 881                                          const char *path, const char *name,
 882                                          TALLOC_CTX *mem_ctx, char **found_name)
 883 {
 884         int ret;
 885         char key_buf[NAME_MAX + 64];
 886         char val_buf[NAME_MAX + 1];
 887
 888         if (strlen(name) >= NAME_MAX) {
 889                 errno = ENAMETOOLONG;
 890                 return -1;
 891         }
 892
 893         snprintf(key_buf, NAME_MAX + 64,
 894                  "user.glusterfs.get_real_filename:%s", name);
 895
 896         ret = glfs_getxattr(handle->data, path, key_buf, val_buf, NAME_MAX + 1);
 897         if (ret == -1) {
 898                 if (errno == ENODATA) {
 899                         errno = EOPNOTSUPP;
 900                 }
 901                 return -1;
 902         }
 903
 904         *found_name = talloc_strdup(mem_ctx, val_buf);
 905         if (found_name[0] == NULL) {
 906                 errno = ENOMEM;
 907                 return -1;
 908         }
 909         return 0;
 910 }
 911
 912 static const char *vfs_gluster_connectpath(struct vfs_handle_struct *handle,
 913                                            const char *filename)
 914 {
 915         return handle->conn->connectpath;
 916 }
 917
 918 /* EA Operations */
 919
 920 static ssize_t vfs_gluster_getxattr(struct vfs_handle_struct *handle,
 921                                     const char *path, const char *name,
 922                                     void *value, size_t size)
 923 {
 924         return glfs_getxattr(handle->data, path, name, value, size);
 925 }
 926
 927 static ssize_t vfs_gluster_fgetxattr(struct vfs_handle_struct *handle,
 928                                      files_struct *fsp, const char *name,
 929                                      void *value, size_t size)
 930 {
 931         return glfs_fgetxattr(glfd_fd_get(fsp->fh->fd), name, value, size);
 932 }
 933
 934 static ssize_t vfs_gluster_listxattr(struct vfs_handle_struct *handle,
 935                                      const char *path, char *list, size_t size)
 936 {
 937         return glfs_listxattr(handle->data, path, list, size);
 938 }
 939
 940 static ssize_t vfs_gluster_flistxattr(struct vfs_handle_struct *handle,
 941                                       files_struct *fsp, char *list,
 942                                       size_t size)
 943 {
 944         return glfs_flistxattr(glfd_fd_get(fsp->fh->fd), list, size);
 945 }
 946
 947 static int vfs_gluster_removexattr(struct vfs_handle_struct *handle,
 948                                    const char *path, const char *name)
 949 {
 950         return glfs_removexattr(handle->data, path, name);
 951 }
 952
 953 static int vfs_gluster_fremovexattr(struct vfs_handle_struct *handle,
 954                                     files_struct *fsp, const char *name)
 955 {
 956         return glfs_fremovexattr(glfd_fd_get(fsp->fh->fd), name);
 957 }
 958
 959 static int vfs_gluster_setxattr(struct vfs_handle_struct *handle,
 960                                 const char *path, const char *name,
 961                                 const void *value, size_t size, int flags)
 962 {
 963         return glfs_setxattr(handle->data, path, name, value, size, flags);
 964 }
 965
 966 static int vfs_gluster_fsetxattr(struct vfs_handle_struct *handle,
 967                                  files_struct *fsp, const char *name,
 968                                  const void *value, size_t size, int flags)
 969 {
 970         return glfs_fsetxattr(glfd_fd_get(fsp->fh->fd), name, value, size,
 971                               flags);
 972 }
 973
 974 /* AIO Operations */
 975
 976 static bool vfs_gluster_aio_force(struct vfs_handle_struct *handle,
 977                                   files_struct *fsp)
 978 {
 979         return false;
 980 }
 981
 982 /* Offline Operations */
 983
 984 static bool vfs_gluster_is_offline(struct vfs_handle_struct *handle,
 985                                    const struct smb_filename *fname,
 986                                    SMB_STRUCT_STAT *sbuf)
 987 {
 988         return false;
 989 }
 990
 991 static int vfs_gluster_set_offline(struct vfs_handle_struct *handle,
 992                                    const struct smb_filename *fname)
 993 {
 994         errno = ENOTSUP;
 995         return -1;
 996 }
 997
 998 /* Posix ACL Operations */
 999
1000 #define GLUSTER_ACL_VERSION 2
1001 #define GLUSTER_ACL_READ    0x04
1002 #define GLUSTER_ACL_WRITE   0x02
1003 #define GLUSTER_ACL_EXECUTE 0x01
1004
1005 #define GLUSTER_ACL_UNDEFINED_TAG  0x00
1006 #define GLUSTER_ACL_USER_OBJ       0x01
1007 #define GLUSTER_ACL_USER           0x02
1008 #define GLUSTER_ACL_GROUP_OBJ      0x04
1009 #define GLUSTER_ACL_GROUP          0x08
1010 #define GLUSTER_ACL_MASK           0x10
1011 #define GLUSTER_ACL_OTHER          0x20
1012
1013 #define GLUSTER_ACL_UNDEFINED_ID  (-1)
1014
1015 struct gluster_ace {
1016         uint16_t tag;
1017         uint16_t perm;
1018         uint32_t id;
1019 };
1020
1021 struct gluster_acl_header {
1022         uint32_t version;
1023         struct gluster_ace entries[];
1024 };
1025
1026 static SMB_ACL_T gluster_to_smb_acl(const char *buf, size_t xattr_size,
1027                                     TALLOC_CTX *mem_ctx)
1028 {
1029         int count;
1030         size_t size;
1031         struct gluster_ace *ace;
1032         struct smb_acl_entry *smb_ace;
1033         struct gluster_acl_header *hdr;
1034         struct smb_acl_t *result;
1035         int i;
1036         uint16_t tag;
1037         uint16_t perm;
1038         uint32_t id;
1039
1040         size = xattr_size;
1041
1042         if (size < sizeof(*hdr)) {
1043                 /* ACL should be at least as big as the header */
1044                 errno = EINVAL;
1045                 return NULL;
1046         }
1047
1048         size -= sizeof(*hdr);
1049
1050         if (size % sizeof(*ace)) {
1051                 /* Size of entries must strictly be a multiple of
1052                    size of an ACE
1053                 */
1054                 errno = EINVAL;
1055                 return NULL;
1056         }
1057
1058         count = size / sizeof(*ace);
1059
1060         hdr = (void *)buf;
1061
1062         if (ntohl(hdr->version) != GLUSTER_ACL_VERSION) {
1063                 DEBUG(0, ("Unknown gluster ACL version: %d\n",
1064                           ntohl(hdr->version)));
1065                 return NULL;
1066         }
1067
1068         result = sys_acl_init(mem_ctx);
1069         if (!result) {
1070                 errno = ENOMEM;
1071                 return NULL;
1072         }
1073
1074         result->acl = talloc_array(result, struct smb_acl_entry, count);
1075         if (!result->acl) {
1076                 errno = ENOMEM;
1077                 talloc_free(result);
1078                 return NULL;
1079         }
1080
1081         result->count = count;
1082
1083         smb_ace = result->acl;
1084         ace = hdr->entries;
1085
1086         for (i = 0; i < count; i++) {
1087                 tag = ntohs(ace->tag);
1088
1089                 switch(tag) {
1090                 case GLUSTER_ACL_USER:
1091                         smb_ace->a_type = SMB_ACL_USER;
1092                         break;
1093                 case GLUSTER_ACL_USER_OBJ:
1094                         smb_ace->a_type = SMB_ACL_USER_OBJ;
1095                         break;
1096                 case GLUSTER_ACL_GROUP:
1097                         smb_ace->a_type = SMB_ACL_GROUP;
1098                         break;
1099                 case GLUSTER_ACL_GROUP_OBJ:
1100                         smb_ace->a_type = SMB_ACL_GROUP_OBJ;
1101                         break;
1102                 case GLUSTER_ACL_OTHER:
1103                         smb_ace->a_type = SMB_ACL_OTHER;
1104                         break;
1105                 case GLUSTER_ACL_MASK:
1106                         smb_ace->a_type = SMB_ACL_MASK;
1107                         break;
1108                 default:
1109                         DEBUG(0, ("unknown tag type %d\n", (unsigned int) tag));
1110                         return NULL;
1111                 }
1112
1113                 id = ntohl(ace->id);
1114
1115                 switch(smb_ace->a_type) {
1116                 case SMB_ACL_USER:
1117                         smb_ace->info.user.uid = id;
1118                         break;
1119                 case SMB_ACL_GROUP:
1120                         smb_ace->info.group.gid = id;
1121                         break;
1122                 default:
1123                         break;
1124                 }
1125
1126                 perm = ntohs(ace->perm);
1127
1128                 smb_ace->a_perm = 0;
1129                 smb_ace->a_perm |=
1130                         ((perm & GLUSTER_ACL_READ) ? SMB_ACL_READ : 0);
1131                 smb_ace->a_perm |=
1132                         ((perm & GLUSTER_ACL_WRITE) ? SMB_ACL_WRITE : 0);
1133                 smb_ace->a_perm |=
1134                         ((perm & GLUSTER_ACL_EXECUTE) ? SMB_ACL_EXECUTE : 0);
1135
1136                 ace++;
1137                 smb_ace++;
1138         }
1139
1140         return result;
1141 }
1142
1143
1144 static ssize_t smb_to_gluster_acl(SMB_ACL_T theacl, char *buf, size_t len)
1145 {
1146         ssize_t size;
1147         struct gluster_ace *ace;
1148         struct smb_acl_entry *smb_ace;
1149         struct gluster_acl_header *hdr;
1150         int i;
1151         int count;
1152         uint16_t tag;
1153         uint16_t perm;
1154         uint32_t id;
1155
1156         count = theacl->count;
1157
1158         size = sizeof(*hdr) + (count * sizeof(*ace));
1159         if (!buf) {
1160                 return size;
1161         }
1162
1163         if (len < size) {
1164                 errno = ERANGE;
1165                 return -1;
1166         }
1167
1168         hdr = (void *)buf;
1169         ace = hdr->entries;
1170         smb_ace = theacl->acl;
1171
1172         hdr->version = htonl(GLUSTER_ACL_VERSION);
1173
1174         for (i = 0; i < count; i++) {
1175                 switch(smb_ace->a_type) {
1176                 case SMB_ACL_USER:
1177                         tag = GLUSTER_ACL_USER;
1178                         break;
1179                 case SMB_ACL_USER_OBJ:
1180                         tag = GLUSTER_ACL_USER_OBJ;
1181                         break;
1182                 case SMB_ACL_GROUP:
1183                         tag = GLUSTER_ACL_GROUP;
1184                         break;
1185                 case SMB_ACL_GROUP_OBJ:
1186                         tag = GLUSTER_ACL_GROUP_OBJ;
1187                         break;
1188                 case SMB_ACL_OTHER:
1189                         tag = GLUSTER_ACL_OTHER;
1190                         break;
1191                 case SMB_ACL_MASK:
1192                         tag = GLUSTER_ACL_MASK;
1193                         break;
1194                 default:
1195                         DEBUG(0, ("Unknown tag value %d\n",
1196                                   smb_ace->a_type));
1197                         errno = EINVAL;
1198                         return -1;
1199                 }
1200
1201                 ace->tag = ntohs(tag);
1202
1203                 switch(smb_ace->a_type) {
1204                 case SMB_ACL_USER:
1205                         id = smb_ace->info.user.uid;
1206                         break;
1207                 case SMB_ACL_GROUP:
1208                         id = smb_ace->info.group.gid;
1209                         break;
1210                 default:
1211                         id = GLUSTER_ACL_UNDEFINED_ID;
1212                         break;
1213                 }
1214
1215                 ace->id = ntohl(id);
1216
1217                 ace->perm = 0;
1218                 ace->perm |=
1219                         ((smb_ace->a_perm & SMB_ACL_READ) ? GLUSTER_ACL_READ : 0);
1220                 ace->perm |=
1221                         ((smb_ace->a_perm & SMB_ACL_WRITE) ? GLUSTER_ACL_WRITE : 0);
1222                 ace->perm |=
1223                         ((smb_ace->a_perm & SMB_ACL_EXECUTE) ? GLUSTER_ACL_EXECUTE : 0);
1224
1225                 ace++;
1226                 smb_ace++;
1227         }
1228
1229         return size;
1230 }
1231
1232
1233 static SMB_ACL_T vfs_gluster_sys_acl_get_file(struct vfs_handle_struct *handle,
1234                                               const char *path_p,
1235                                               SMB_ACL_TYPE_T type,
1236                                               TALLOC_CTX *mem_ctx)
1237 {
1238         struct smb_acl_t *result;
1239         char *buf;
1240         char *key;
1241         ssize_t ret;
1242
1243         switch (type) {
1244         case SMB_ACL_TYPE_ACCESS:
1245                 key = "system.posix_acl_access";
1246                 break;
1247         case SMB_ACL_TYPE_DEFAULT:
1248                 key = "system.posix_acl_default";
1249                 break;
1250         default:
1251                 errno = EINVAL;
1252                 return NULL;
1253         }
1254
1255         ret = glfs_getxattr(handle->data, path_p, key, 0, 0);
1256         if (ret <= 0) {
1257                 return NULL;
1258         }
1259
1260         buf = alloca(ret);
1261         ret = glfs_getxattr(handle->data, path_p, key, buf, ret);
1262         if (ret <= 0) {
1263                 return NULL;
1264         }
1265
1266         result = gluster_to_smb_acl(buf, ret, mem_ctx);
1267
1268         return result;
1269 }
1270
1271 static SMB_ACL_T vfs_gluster_sys_acl_get_fd(struct vfs_handle_struct *handle,
1272                                             struct files_struct *fsp,
1273                                             TALLOC_CTX *mem_ctx)
1274 {
1275         struct smb_acl_t *result;
1276         int ret;
1277         char *buf;
1278
1279         ret = glfs_fgetxattr(glfd_fd_get(fsp->fh->fd),
1280                              "system.posix_acl_access", 0, 0);
1281         if (ret <= 0) {
1282                 return NULL;
1283         }
1284
1285         buf = alloca(ret);
1286         ret = glfs_fgetxattr(glfd_fd_get(fsp->fh->fd),
1287                              "system.posix_acl_access", buf, ret);
1288         if (ret <= 0) {
1289                 return NULL;
1290         }
1291
1292         result = gluster_to_smb_acl(buf, ret, mem_ctx);
1293
1294         return result;
1295 }
1296
1297 static int vfs_gluster_sys_acl_set_file(struct vfs_handle_struct *handle,
1298                                         const char *name,
1299                                         SMB_ACL_TYPE_T acltype,
1300                                         SMB_ACL_T theacl)
1301 {
1302         int ret;
1303         char *key;
1304         char *buf;
1305         ssize_t size;
1306
1307         switch (acltype) {
1308         case SMB_ACL_TYPE_ACCESS:
1309                 key = "system.posix_acl_access";
1310                 break;
1311         case SMB_ACL_TYPE_DEFAULT:
1312                 key = "system.posix_acl_default";
1313                 break;
1314         default:
1315                 errno = EINVAL;
1316                 return -1;
1317         }
1318
1319         size = smb_to_gluster_acl(theacl, 0, 0);
1320         buf = alloca(size);
1321
1322         size = smb_to_gluster_acl(theacl, buf, size);
1323         if (size == -1) {
1324                 return -1;
1325         }
1326
1327         ret = glfs_setxattr(handle->data, name, key, buf, size, 0);
1328
1329         return ret;
1330 }
1331
1332 static int vfs_gluster_sys_acl_set_fd(struct vfs_handle_struct *handle,
1333                                       struct files_struct *fsp,
1334                                       SMB_ACL_T theacl)
1335 {
1336         int ret;
1337         char *key;
1338         char *buf;
1339         ssize_t size;
1340
1341         size = smb_to_gluster_acl(theacl, 0, 0);
1342         buf = alloca(size);
1343
1344         size = smb_to_gluster_acl(theacl, buf, size);
1345         if (size == -1) {
1346                 return -1;
1347         }
1348
1349         ret = glfs_fsetxattr(glfd_fd_get(fsp->fh->fd),
1350                              "system.posix_acl_access", buf, size, 0);
1351         return ret;
1352 }
1353
1354 static int vfs_gluster_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1355                                                const char *path)
1356 {
1357         return glfs_removexattr(handle->data, path, "system.posix_acl_default");
1358 }
1359
1360 static struct vfs_fn_pointers glusterfs_fns = {
1361
1362         /* Disk Operations */
1363
1364         .connect_fn = vfs_gluster_connect,
1365         .disconnect_fn = vfs_gluster_disconnect,
1366         .disk_free_fn = vfs_gluster_disk_free,
1367         .get_quota_fn = vfs_gluster_get_quota,
1368         .set_quota_fn = vfs_gluster_set_quota,
1369         .statvfs_fn = vfs_gluster_statvfs,
1370         .fs_capabilities_fn = vfs_gluster_fs_capabilities,
1371
1372         .get_dfs_referrals_fn = NULL,
1373
1374         /* Directory Operations */
1375
1376         .opendir_fn = vfs_gluster_opendir,
1377         .fdopendir_fn = vfs_gluster_fdopendir,
1378         .readdir_fn = vfs_gluster_readdir,
1379         .seekdir_fn = vfs_gluster_seekdir,
1380         .telldir_fn = vfs_gluster_telldir,
1381         .rewind_dir_fn = vfs_gluster_rewinddir,
1382         .mkdir_fn = vfs_gluster_mkdir,
1383         .rmdir_fn = vfs_gluster_rmdir,
1384         .closedir_fn = vfs_gluster_closedir,
1385         .init_search_op_fn = vfs_gluster_init_search_op,
1386
1387         /* File Operations */
1388
1389         .open_fn = vfs_gluster_open,
1390         .create_file_fn = NULL,
1391         .close_fn = vfs_gluster_close,
1392         .read_fn = vfs_gluster_read,
1393         .pread_fn = vfs_gluster_pread,
1394         .pread_send_fn = vfs_gluster_pread_send,
1395         .pread_recv_fn = vfs_gluster_pread_recv,
1396         .write_fn = vfs_gluster_write,
1397         .pwrite_fn = vfs_gluster_pwrite,
1398         .pwrite_send_fn = vfs_gluster_pwrite_send,
1399         .pwrite_recv_fn = vfs_gluster_pwrite_recv,
1400         .lseek_fn = vfs_gluster_lseek,
1401         .sendfile_fn = vfs_gluster_sendfile,
1402         .recvfile_fn = vfs_gluster_recvfile,
1403         .rename_fn = vfs_gluster_rename,
1404         .fsync_fn = vfs_gluster_fsync,
1405         .fsync_send_fn = vfs_gluster_fsync_send,
1406         .fsync_recv_fn = vfs_gluster_fsync_recv,
1407
1408         .stat_fn = vfs_gluster_stat,
1409         .fstat_fn = vfs_gluster_fstat,
1410         .lstat_fn = vfs_gluster_lstat,
1411         .get_alloc_size_fn = vfs_gluster_get_alloc_size,
1412         .unlink_fn = vfs_gluster_unlink,
1413
1414         .chmod_fn = vfs_gluster_chmod,
1415         .fchmod_fn = vfs_gluster_fchmod,
1416         .chown_fn = vfs_gluster_chown,
1417         .fchown_fn = vfs_gluster_fchown,
1418         .lchown_fn = vfs_gluster_lchown,
1419         .chdir_fn = vfs_gluster_chdir,
1420         .getwd_fn = vfs_gluster_getwd,
1421         .ntimes_fn = vfs_gluster_ntimes,
1422         .ftruncate_fn = vfs_gluster_ftruncate,
1423         .fallocate_fn = vfs_gluster_fallocate,
1424         .lock_fn = vfs_gluster_lock,
1425         .kernel_flock_fn = vfs_gluster_kernel_flock,
1426         .linux_setlease_fn = vfs_gluster_linux_setlease,
1427         .getlock_fn = vfs_gluster_getlock,
1428         .symlink_fn = vfs_gluster_symlink,
1429         .readlink_fn = vfs_gluster_readlink,
1430         .link_fn = vfs_gluster_link,
1431         .mknod_fn = vfs_gluster_mknod,
1432         .realpath_fn = vfs_gluster_realpath,
1433         .notify_watch_fn = vfs_gluster_notify_watch,
1434         .chflags_fn = vfs_gluster_chflags,
1435         .file_id_create_fn = NULL,
1436         .copy_chunk_send_fn = NULL,
1437         .copy_chunk_recv_fn = NULL,
1438         .streaminfo_fn = NULL,
1439         .get_real_filename_fn = vfs_gluster_get_real_filename,
1440         .connectpath_fn = vfs_gluster_connectpath,
1441
1442         .brl_lock_windows_fn = NULL,
1443         .brl_unlock_windows_fn = NULL,
1444         .brl_cancel_windows_fn = NULL,
1445         .strict_lock_fn = NULL,
1446         .strict_unlock_fn = NULL,
1447         .translate_name_fn = NULL,
1448         .fsctl_fn = NULL,
1449
1450         /* NT ACL Operations */
1451         .fget_nt_acl_fn = NULL,
1452         .get_nt_acl_fn = NULL,
1453         .fset_nt_acl_fn = NULL,
1454         .audit_file_fn = NULL,
1455
1456         /* Posix ACL Operations */
1457         .chmod_acl_fn = NULL,   /* passthrough to default */
1458         .fchmod_acl_fn = NULL,  /* passthrough to default */
1459         .sys_acl_get_file_fn = vfs_gluster_sys_acl_get_file,
1460         .sys_acl_get_fd_fn = vfs_gluster_sys_acl_get_fd,
1461         .sys_acl_blob_get_file_fn = posix_sys_acl_blob_get_file,
1462         .sys_acl_blob_get_fd_fn = posix_sys_acl_blob_get_fd,
1463         .sys_acl_set_file_fn = vfs_gluster_sys_acl_set_file,
1464         .sys_acl_set_fd_fn = vfs_gluster_sys_acl_set_fd,
1465         .sys_acl_delete_def_file_fn = vfs_gluster_sys_acl_delete_def_file,
1466
1467         /* EA Operations */
1468         .getxattr_fn = vfs_gluster_getxattr,
1469         .fgetxattr_fn = vfs_gluster_fgetxattr,
1470         .listxattr_fn = vfs_gluster_listxattr,
1471         .flistxattr_fn = vfs_gluster_flistxattr,
1472         .removexattr_fn = vfs_gluster_removexattr,
1473         .fremovexattr_fn = vfs_gluster_fremovexattr,
1474         .setxattr_fn = vfs_gluster_setxattr,
1475         .fsetxattr_fn = vfs_gluster_fsetxattr,
1476
1477         /* AIO Operations */
1478         .aio_force_fn = vfs_gluster_aio_force,
1479
1480         /* Offline Operations */
1481         .is_offline_fn = vfs_gluster_is_offline,
1482         .set_offline_fn = vfs_gluster_set_offline,
1483
1484         /* Durable handle Operations */
1485         .durable_cookie_fn = NULL,
1486         .durable_disconnect_fn = NULL,
1487         .durable_reconnect_fn = NULL,
1488 };
1489
1490 NTSTATUS vfs_glusterfs_init(void);
1491 NTSTATUS vfs_glusterfs_init(void)
1492 {
1493         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
1494                                 "glusterfs", &glusterfs_fns);
1495 }