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 /**
  23  * @file   vfs_glusterfs.c
  24  * @author Anand Avati <avati@redhat.com>
  25  * @date   May 2013
  26  * @brief  Samba VFS module for glusterfs
  27  *
  28  * @todo
  29  *   - sendfile/recvfile support
  30  *
  31  * A Samba VFS module for GlusterFS, based on Gluster's libgfapi.
  32  * This is a "bottom" vfs module (not something to be stacked on top of
  33  * another module), and translates (most) calls to the closest actions
  34  * available in libgfapi.
  35  *
  36  */
  37
  38 #include "includes.h"
  39 #include "smbd/smbd.h"
  40 #include <stdio.h>
  41 #include <glusterfs/api/glfs.h>
  42 #include "lib/util/dlinklist.h"
  43 #include "lib/util/tevent_unix.h"
  44 #include "smbd/globals.h"
  45 #include "lib/util/sys_rw.h"
  46 #include "smbprofile.h"
  47 #include "modules/posixacl_xattr.h"
  48 #include "lib/pthreadpool/pthreadpool_tevent.h"
  49
  50 #define DEFAULT_VOLFILE_SERVER "localhost"
  51 #define GLUSTER_NAME_MAX 255
  52
  53 /**
  54  * Helper to convert struct stat to struct stat_ex.
  55  */
  56 static void smb_stat_ex_from_stat(struct stat_ex *dst, const struct stat *src)
  57 {
  58         ZERO_STRUCTP(dst);
  59
  60         dst->st_ex_dev = src->st_dev;
  61         dst->st_ex_ino = src->st_ino;
  62         dst->st_ex_mode = src->st_mode;
  63         dst->st_ex_nlink = src->st_nlink;
  64         dst->st_ex_uid = src->st_uid;
  65         dst->st_ex_gid = src->st_gid;
  66         dst->st_ex_rdev = src->st_rdev;
  67         dst->st_ex_size = src->st_size;
  68         dst->st_ex_atime.tv_sec = src->st_atime;
  69         dst->st_ex_mtime.tv_sec = src->st_mtime;
  70         dst->st_ex_ctime.tv_sec = src->st_ctime;
  71         dst->st_ex_btime.tv_sec = src->st_mtime;
  72         dst->st_ex_blksize = src->st_blksize;
  73         dst->st_ex_blocks = src->st_blocks;
  74         dst->st_ex_file_id = dst->st_ex_ino;
  75         dst->st_ex_iflags |= ST_EX_IFLAG_CALCULATED_FILE_ID;
  76 #ifdef STAT_HAVE_NSEC
  77         dst->st_ex_atime.tv_nsec = src->st_atime_nsec;
  78         dst->st_ex_mtime.tv_nsec = src->st_mtime_nsec;
  79         dst->st_ex_ctime.tv_nsec = src->st_ctime_nsec;
  80         dst->st_ex_btime.tv_nsec = src->st_mtime_nsec;
  81 #endif
  82         dst->st_ex_itime = dst->st_ex_btime;
  83         dst->st_ex_iflags |= ST_EX_IFLAG_CALCULATED_ITIME;
  84 }
  85
  86 /* pre-opened glfs_t */
  87
  88 static struct glfs_preopened {
  89         char *volume;
  90         char *connectpath;
  91         glfs_t *fs;
  92         int ref;
  93         struct glfs_preopened *next, *prev;
  94 } *glfs_preopened;
  95
  96
  97 static int glfs_set_preopened(const char *volume, const char *connectpath, glfs_t *fs)
  98 {
  99         struct glfs_preopened *entry = NULL;
 100
 101         entry = talloc_zero(NULL, struct glfs_preopened);
 102         if (!entry) {
 103                 errno = ENOMEM;
 104                 return -1;
 105         }
 106
 107         entry->volume = talloc_strdup(entry, volume);
 108         if (!entry->volume) {
 109                 talloc_free(entry);
 110                 errno = ENOMEM;
 111                 return -1;
 112         }
 113
 114         entry->connectpath = talloc_strdup(entry, connectpath);
 115         if (entry->connectpath == NULL) {
 116                 talloc_free(entry);
 117                 errno = ENOMEM;
 118                 return -1;
 119         }
 120
 121         entry->fs = fs;
 122         entry->ref = 1;
 123
 124         DLIST_ADD(glfs_preopened, entry);
 125
 126         return 0;
 127 }
 128
 129 static glfs_t *glfs_find_preopened(const char *volume, const char *connectpath)
 130 {
 131         struct glfs_preopened *entry = NULL;
 132
 133         for (entry = glfs_preopened; entry; entry = entry->next) {
 134                 if (strcmp(entry->volume, volume) == 0 &&
 135                     strcmp(entry->connectpath, connectpath) == 0)
 136                 {
 137                         entry->ref++;
 138                         return entry->fs;
 139                 }
 140         }
 141
 142         return NULL;
 143 }
 144
 145 static void glfs_clear_preopened(glfs_t *fs)
 146 {
 147         struct glfs_preopened *entry = NULL;
 148
 149         for (entry = glfs_preopened; entry; entry = entry->next) {
 150                 if (entry->fs == fs) {
 151                         if (--entry->ref)
 152                                 return;
 153
 154                         DLIST_REMOVE(glfs_preopened, entry);
 155
 156                         glfs_fini(entry->fs);
 157                         talloc_free(entry);
 158                 }
 159         }
 160 }
 161
 162 static int vfs_gluster_set_volfile_servers(glfs_t *fs,
 163                                            const char *volfile_servers)
 164 {
 165         char *server = NULL;
 166         size_t server_count = 0;
 167         size_t server_success = 0;
 168         int   ret = -1;
 169         TALLOC_CTX *frame = talloc_stackframe();
 170
 171         DBG_INFO("servers list %s\n", volfile_servers);
 172
 173         while (next_token_talloc(frame, &volfile_servers, &server, " \t")) {
 174                 char *transport = NULL;
 175                 char *host = NULL;
 176                 int   port = 0;
 177
 178                 server_count++;
 179                 DBG_INFO("server %zu %s\n", server_count, server);
 180
 181                 /* Determine the transport type */
 182                 if (strncmp(server, "unix+", 5) == 0) {
 183                         port = 0;
 184                         transport = talloc_strdup(frame, "unix");
 185                         if (!transport) {
 186                                 errno = ENOMEM;
 187                                 goto out;
 188                         }
 189                         host = talloc_strdup(frame, server + 5);
 190                         if (!host) {
 191                                 errno = ENOMEM;
 192                                 goto out;
 193                         }
 194                 } else {
 195                         char *p = NULL;
 196                         char *port_index = NULL;
 197
 198                         if (strncmp(server, "tcp+", 4) == 0) {
 199                                 server += 4;
 200                         }
 201
 202                         /* IPv6 is enclosed in []
 203                          * ':' before ']' is part of IPv6
 204                          * ':' after  ']' indicates port
 205                          */
 206                         p = server;
 207                         if (server[0] == '[') {
 208                                 server++;
 209                                 p = index(server, ']');
 210                                 if (p == NULL) {
 211                                         /* Malformed IPv6 */
 212                                         continue;
 213                                 }
 214                                 p[0] = '\0';
 215                                 p++;
 216                         }
 217
 218                         port_index = index(p, ':');
 219
 220                         if (port_index == NULL) {
 221                                 port = 0;
 222                         } else {
 223                                 port = atoi(port_index + 1);
 224                                 port_index[0] = '\0';
 225                         }
 226                         transport = talloc_strdup(frame, "tcp");
 227                         if (!transport) {
 228                                 errno = ENOMEM;
 229                                 goto out;
 230                         }
 231                         host = talloc_strdup(frame, server);
 232                         if (!host) {
 233                                 errno = ENOMEM;
 234                                 goto out;
 235                         }
 236                 }
 237
 238                 DBG_INFO("Calling set volfile server with params "
 239                          "transport=%s, host=%s, port=%d\n", transport,
 240                           host, port);
 241
 242                 ret = glfs_set_volfile_server(fs, transport, host, port);
 243                 if (ret < 0) {
 244                         DBG_WARNING("Failed to set volfile_server "
 245                                     "transport=%s, host=%s, port=%d (%s)\n",
 246                                     transport, host, port, strerror(errno));
 247                 } else {
 248                         server_success++;
 249                 }
 250         }
 251
 252 out:
 253         if (server_count == 0) {
 254                 ret = -1;
 255         } else if (server_success < server_count) {
 256                 DBG_WARNING("Failed to set %zu out of %zu servers parsed\n",
 257                             server_count - server_success, server_count);
 258                 ret = 0;
 259         }
 260
 261         TALLOC_FREE(frame);
 262         return ret;
 263 }
 264
 265 /* Disk Operations */
 266
 267 static int vfs_gluster_connect(struct vfs_handle_struct *handle,
 268                                const char *service,
 269                                const char *user)
 270 {
 271         const struct loadparm_substitution *lp_sub =
 272                 loadparm_s3_global_substitution();
 273         const char *volfile_servers;
 274         const char *volume;
 275         char *logfile;
 276         int loglevel;
 277         glfs_t *fs = NULL;
 278         TALLOC_CTX *tmp_ctx;
 279         int ret = 0;
 280
 281         tmp_ctx = talloc_new(NULL);
 282         if (tmp_ctx == NULL) {
 283                 ret = -1;
 284                 goto done;
 285         }
 286         logfile = lp_parm_substituted_string(tmp_ctx,
 287                                              lp_sub,
 288                                              SNUM(handle->conn),
 289                                              "glusterfs",
 290                                              "logfile",
 291                                              NULL);
 292
 293         loglevel = lp_parm_int(SNUM(handle->conn), "glusterfs", "loglevel", -1);
 294
 295         volfile_servers = lp_parm_substituted_string(tmp_ctx,
 296                                                      lp_sub,
 297                                                      SNUM(handle->conn),
 298                                                      "glusterfs",
 299                                                      "volfile_server",
 300                                                      NULL);
 301         if (volfile_servers == NULL) {
 302                 volfile_servers = DEFAULT_VOLFILE_SERVER;
 303         }
 304
 305         volume = lp_parm_const_string(SNUM(handle->conn), "glusterfs", "volume",
 306                                       NULL);
 307         if (volume == NULL) {
 308                 volume = service;
 309         }
 310
 311         fs = glfs_find_preopened(volume, handle->conn->connectpath);
 312         if (fs) {
 313                 goto done;
 314         }
 315
 316         fs = glfs_new(volume);
 317         if (fs == NULL) {
 318                 ret = -1;
 319                 goto done;
 320         }
 321
 322         ret = vfs_gluster_set_volfile_servers(fs, volfile_servers);
 323         if (ret < 0) {
 324                 DBG_ERR("Failed to set volfile_servers from list %s\n",
 325                         volfile_servers);
 326                 goto done;
 327         }
 328
 329         ret = glfs_set_xlator_option(fs, "*-md-cache", "cache-posix-acl",
 330                                      "true");
 331         if (ret < 0) {
 332                 DEBUG(0, ("%s: Failed to set xlator options\n", volume));
 333                 goto done;
 334         }
 335
 336
 337         ret = glfs_set_xlator_option(fs, "*-snapview-client",
 338                                      "snapdir-entry-path",
 339                                      handle->conn->connectpath);
 340         if (ret < 0) {
 341                 DEBUG(0, ("%s: Failed to set xlator option:"
 342                           " snapdir-entry-path\n", volume));
 343                 goto done;
 344         }
 345
 346         ret = glfs_set_logging(fs, logfile, loglevel);
 347         if (ret < 0) {
 348                 DEBUG(0, ("%s: Failed to set logfile %s loglevel %d\n",
 349                           volume, logfile, loglevel));
 350                 goto done;
 351         }
 352
 353         ret = glfs_init(fs);
 354         if (ret < 0) {
 355                 DEBUG(0, ("%s: Failed to initialize volume (%s)\n",
 356                           volume, strerror(errno)));
 357                 goto done;
 358         }
 359
 360         ret = glfs_set_preopened(volume, handle->conn->connectpath, fs);
 361         if (ret < 0) {
 362                 DEBUG(0, ("%s: Failed to register volume (%s)\n",
 363                           volume, strerror(errno)));
 364                 goto done;
 365         }
 366
 367         /*
 368          * The shadow_copy2 module will fail to export subdirectories
 369          * of a gluster volume unless we specify the mount point,
 370          * because the detection fails if the file system is not
 371          * locally mounted:
 372          * https://bugzilla.samba.org/show_bug.cgi?id=13091
 373          */
 374         lp_do_parameter(SNUM(handle->conn), "shadow:mountpoint", "/");
 375
 376         /*
 377          * Unless we have an async implementation of getxattrat turn this off.
 378          */
 379         lp_do_parameter(SNUM(handle->conn), "smbd async dosmode", "false");
 380
 381 done:
 382         if (ret < 0) {
 383                 if (fs)
 384                         glfs_fini(fs);
 385         } else {
 386                 DBG_ERR("%s: Initialized volume from servers %s\n",
 387                         volume, volfile_servers);
 388                 handle->data = fs;
 389         }
 390         talloc_free(tmp_ctx);
 391         return ret;
 392 }
 393
 394 static void vfs_gluster_disconnect(struct vfs_handle_struct *handle)
 395 {
 396         glfs_t *fs = NULL;
 397
 398         fs = handle->data;
 399
 400         glfs_clear_preopened(fs);
 401 }
 402
 403 static uint64_t vfs_gluster_disk_free(struct vfs_handle_struct *handle,
 404                                 const struct smb_filename *smb_fname,
 405                                 uint64_t *bsize_p,
 406                                 uint64_t *dfree_p,
 407                                 uint64_t *dsize_p)
 408 {
 409         struct statvfs statvfs = { 0, };
 410         int ret;
 411
 412         ret = glfs_statvfs(handle->data, smb_fname->base_name, &statvfs);
 413         if (ret < 0) {
 414                 return -1;
 415         }
 416
 417         if (bsize_p != NULL) {
 418                 *bsize_p = (uint64_t)statvfs.f_bsize; /* Block size */
 419         }
 420         if (dfree_p != NULL) {
 421                 *dfree_p = (uint64_t)statvfs.f_bavail; /* Available Block units */
 422         }
 423         if (dsize_p != NULL) {
 424                 *dsize_p = (uint64_t)statvfs.f_blocks; /* Total Block units */
 425         }
 426
 427         return (uint64_t)statvfs.f_bavail;
 428 }
 429
 430 static int vfs_gluster_get_quota(struct vfs_handle_struct *handle,
 431                                 const struct smb_filename *smb_fname,
 432                                 enum SMB_QUOTA_TYPE qtype,
 433                                 unid_t id,
 434                                 SMB_DISK_QUOTA *qt)
 435 {
 436         errno = ENOSYS;
 437         return -1;
 438 }
 439
 440 static int
 441 vfs_gluster_set_quota(struct vfs_handle_struct *handle,
 442                       enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt)
 443 {
 444         errno = ENOSYS;
 445         return -1;
 446 }
 447
 448 static int vfs_gluster_statvfs(struct vfs_handle_struct *handle,
 449                                 const struct smb_filename *smb_fname,
 450                                 struct vfs_statvfs_struct *vfs_statvfs)
 451 {
 452         struct statvfs statvfs = { 0, };
 453         int ret;
 454
 455         ret = glfs_statvfs(handle->data, smb_fname->base_name, &statvfs);
 456         if (ret < 0) {
 457                 DEBUG(0, ("glfs_statvfs(%s) failed: %s\n",
 458                           smb_fname->base_name, strerror(errno)));
 459                 return -1;
 460         }
 461
 462         ZERO_STRUCTP(vfs_statvfs);
 463
 464         vfs_statvfs->OptimalTransferSize = statvfs.f_frsize;
 465         vfs_statvfs->BlockSize = statvfs.f_bsize;
 466         vfs_statvfs->TotalBlocks = statvfs.f_blocks;
 467         vfs_statvfs->BlocksAvail = statvfs.f_bfree;
 468         vfs_statvfs->UserBlocksAvail = statvfs.f_bavail;
 469         vfs_statvfs->TotalFileNodes = statvfs.f_files;
 470         vfs_statvfs->FreeFileNodes = statvfs.f_ffree;
 471         vfs_statvfs->FsIdentifier = statvfs.f_fsid;
 472         vfs_statvfs->FsCapabilities =
 473             FILE_CASE_SENSITIVE_SEARCH | FILE_CASE_PRESERVED_NAMES;
 474
 475         return ret;
 476 }
 477
 478 static uint32_t vfs_gluster_fs_capabilities(struct vfs_handle_struct *handle,
 479                                             enum timestamp_set_resolution *p_ts_res)
 480 {
 481         uint32_t caps = FILE_CASE_SENSITIVE_SEARCH | FILE_CASE_PRESERVED_NAMES;
 482
 483 #ifdef HAVE_GFAPI_VER_6
 484         caps |= FILE_SUPPORTS_SPARSE_FILES;
 485 #endif
 486
 487 #ifdef STAT_HAVE_NSEC
 488         *p_ts_res = TIMESTAMP_SET_NT_OR_BETTER;
 489 #endif
 490
 491         return caps;
 492 }
 493
 494 static DIR *vfs_gluster_opendir(struct vfs_handle_struct *handle,
 495                                 const struct smb_filename *smb_fname,
 496                                 const char *mask,
 497                                 uint32_t attributes)
 498 {
 499         glfs_fd_t *fd;
 500
 501         START_PROFILE(syscall_opendir);
 502
 503         fd = glfs_opendir(handle->data, smb_fname->base_name);
 504         if (fd == NULL) {
 505                 DEBUG(0, ("glfs_opendir(%s) failed: %s\n",
 506                           smb_fname->base_name, strerror(errno)));
 507         }
 508
 509         END_PROFILE(syscall_opendir);
 510
 511         return (DIR *) fd;
 512 }
 513
 514 static glfs_fd_t *vfs_gluster_fetch_glfd(struct vfs_handle_struct *handle,
 515                                          files_struct *fsp)
 516 {
 517         glfs_fd_t **glfd = (glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp);
 518         if (glfd == NULL) {
 519                 DBG_INFO("Failed to fetch fsp extension\n");
 520                 return NULL;
 521         }
 522         if (*glfd == NULL) {
 523                 DBG_INFO("Empty glfs_fd_t pointer\n");
 524                 return NULL;
 525         }
 526
 527         return *glfd;
 528 }
 529
 530 static DIR *vfs_gluster_fdopendir(struct vfs_handle_struct *handle,
 531                                   files_struct *fsp, const char *mask,
 532                                   uint32_t attributes)
 533 {
 534         glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
 535         if (glfd == NULL) {
 536                 DBG_ERR("Failed to fetch gluster fd\n");
 537                 return NULL;
 538         }
 539
 540         return (DIR *)glfd;
 541 }
 542
 543 static int vfs_gluster_closedir(struct vfs_handle_struct *handle, DIR *dirp)
 544 {
 545         int ret;
 546
 547         START_PROFILE(syscall_closedir);
 548         ret = glfs_closedir((void *)dirp);
 549         END_PROFILE(syscall_closedir);
 550
 551         return ret;
 552 }
 553
 554 static struct dirent *vfs_gluster_readdir(struct vfs_handle_struct *handle,
 555                                           DIR *dirp, SMB_STRUCT_STAT *sbuf)
 556 {
 557         static char direntbuf[512];
 558         int ret;
 559         struct stat stat;
 560         struct dirent *dirent = 0;
 561
 562         START_PROFILE(syscall_readdir);
 563         if (sbuf != NULL) {
 564                 ret = glfs_readdirplus_r((void *)dirp, &stat, (void *)direntbuf,
 565                                          &dirent);
 566         } else {
 567                 ret = glfs_readdir_r((void *)dirp, (void *)direntbuf, &dirent);
 568         }
 569
 570         if ((ret < 0) || (dirent == NULL)) {
 571                 END_PROFILE(syscall_readdir);
 572                 return NULL;
 573         }
 574
 575         if (sbuf != NULL) {
 576                 SET_STAT_INVALID(*sbuf);
 577                 if (!S_ISLNK(stat.st_mode)) {
 578                         smb_stat_ex_from_stat(sbuf, &stat);
 579                 }
 580         }
 581
 582         END_PROFILE(syscall_readdir);
 583         return dirent;
 584 }
 585
 586 static long vfs_gluster_telldir(struct vfs_handle_struct *handle, DIR *dirp)
 587 {
 588         long ret;
 589
 590         START_PROFILE(syscall_telldir);
 591         ret = glfs_telldir((void *)dirp);
 592         END_PROFILE(syscall_telldir);
 593
 594         return ret;
 595 }
 596
 597 static void vfs_gluster_seekdir(struct vfs_handle_struct *handle, DIR *dirp,
 598                                 long offset)
 599 {
 600         START_PROFILE(syscall_seekdir);
 601         glfs_seekdir((void *)dirp, offset);
 602         END_PROFILE(syscall_seekdir);
 603 }
 604
 605 static void vfs_gluster_rewinddir(struct vfs_handle_struct *handle, DIR *dirp)
 606 {
 607         START_PROFILE(syscall_rewinddir);
 608         glfs_seekdir((void *)dirp, 0);
 609         END_PROFILE(syscall_rewinddir);
 610 }
 611
 612 static int vfs_gluster_mkdirat(struct vfs_handle_struct *handle,
 613                         struct files_struct *dirfsp,
 614                         const struct smb_filename *smb_fname,
 615                         mode_t mode)
 616 {
 617         int ret;
 618
 619         START_PROFILE(syscall_mkdirat);
 620         SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
 621         ret = glfs_mkdir(handle->data, smb_fname->base_name, mode);
 622         END_PROFILE(syscall_mkdirat);
 623
 624         return ret;
 625 }
 626
 627 static int vfs_gluster_open(struct vfs_handle_struct *handle,
 628                             struct smb_filename *smb_fname, files_struct *fsp,
 629                             int flags, mode_t mode)
 630 {
 631         glfs_fd_t *glfd;
 632         glfs_fd_t **p_tmp;
 633
 634         START_PROFILE(syscall_open);
 635
 636         p_tmp = VFS_ADD_FSP_EXTENSION(handle, fsp, glfs_fd_t *, NULL);
 637         if (p_tmp == NULL) {
 638                 END_PROFILE(syscall_open);
 639                 errno = ENOMEM;
 640                 return -1;
 641         }
 642
 643         if (flags & O_DIRECTORY) {
 644                 glfd = glfs_opendir(handle->data, smb_fname->base_name);
 645         } else if (flags & O_CREAT) {
 646                 glfd = glfs_creat(handle->data, smb_fname->base_name, flags,
 647                                   mode);
 648         } else {
 649                 glfd = glfs_open(handle->data, smb_fname->base_name, flags);
 650         }
 651
 652         if (glfd == NULL) {
 653                 END_PROFILE(syscall_open);
 654                 /* no extension destroy_fn, so no need to save errno */
 655                 VFS_REMOVE_FSP_EXTENSION(handle, fsp);
 656                 return -1;
 657         }
 658
 659         *p_tmp = glfd;
 660
 661         END_PROFILE(syscall_open);
 662         /* An arbitrary value for error reporting, so you know its us. */
 663         return 13371337;
 664 }
 665
 666 static int vfs_gluster_close(struct vfs_handle_struct *handle,
 667                              files_struct *fsp)
 668 {
 669         int ret;
 670         glfs_fd_t *glfd = NULL;
 671
 672         START_PROFILE(syscall_close);
 673
 674         glfd = vfs_gluster_fetch_glfd(handle, fsp);
 675         if (glfd == NULL) {
 676                 END_PROFILE(syscall_close);
 677                 DBG_ERR("Failed to fetch gluster fd\n");
 678                 return -1;
 679         }
 680
 681         VFS_REMOVE_FSP_EXTENSION(handle, fsp);
 682
 683         ret = glfs_close(glfd);
 684         END_PROFILE(syscall_close);
 685
 686         return ret;
 687 }
 688
 689 static ssize_t vfs_gluster_pread(struct vfs_handle_struct *handle,
 690                                  files_struct *fsp, void *data, size_t n,
 691                                  off_t offset)
 692 {
 693         ssize_t ret;
 694         glfs_fd_t *glfd = NULL;
 695
 696         START_PROFILE_BYTES(syscall_pread, n);
 697
 698         glfd = vfs_gluster_fetch_glfd(handle, fsp);
 699         if (glfd == NULL) {
 700                 END_PROFILE_BYTES(syscall_pread);
 701                 DBG_ERR("Failed to fetch gluster fd\n");
 702                 return -1;
 703         }
 704
 705 #ifdef HAVE_GFAPI_VER_7_6
 706         ret = glfs_pread(glfd, data, n, offset, 0, NULL);
 707 #else
 708         ret = glfs_pread(glfd, data, n, offset, 0);
 709 #endif
 710         END_PROFILE_BYTES(syscall_pread);
 711
 712         return ret;
 713 }
 714
 715 struct vfs_gluster_pread_state {
 716         struct tevent_req *req;
 717         ssize_t ret;
 718         glfs_fd_t *fd;
 719         void *buf;
 720         size_t count;
 721         off_t offset;
 722
 723         struct vfs_aio_state vfs_aio_state;
 724         SMBPROFILE_BYTES_ASYNC_STATE(profile_bytes);
 725 };
 726
 727 static void vfs_gluster_pread_do(void *private_data);
 728 static void vfs_gluster_pread_done(struct tevent_req *subreq);
 729 static int vfs_gluster_pread_state_destructor(struct vfs_gluster_pread_state *state);
 730
 731 static struct tevent_req *vfs_gluster_pread_send(struct vfs_handle_struct
 732                                                   *handle, TALLOC_CTX *mem_ctx,
 733                                                   struct tevent_context *ev,
 734                                                   files_struct *fsp,
 735                                                   void *data, size_t n,
 736                                                   off_t offset)
 737 {
 738         struct vfs_gluster_pread_state *state;
 739         struct tevent_req *req, *subreq;
 740
 741         glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
 742         if (glfd == NULL) {
 743                 DBG_ERR("Failed to fetch gluster fd\n");
 744                 return NULL;
 745         }
 746
 747         req = tevent_req_create(mem_ctx, &state, struct vfs_gluster_pread_state);
 748         if (req == NULL) {
 749                 return NULL;
 750         }
 751
 752         state->req = req;
 753         state->ret = -1;
 754         state->fd = glfd;
 755         state->buf = data;
 756         state->count = n;
 757         state->offset = offset;
 758
 759         SMBPROFILE_BYTES_ASYNC_START(syscall_asys_pread, profile_p,
 760                                      state->profile_bytes, n);
 761         SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
 762
 763         subreq = pthreadpool_tevent_job_send(
 764                 state, ev, handle->conn->sconn->pool,
 765                 vfs_gluster_pread_do, state);
 766         if (tevent_req_nomem(subreq, req)) {
 767                 return tevent_req_post(req, ev);
 768         }
 769         tevent_req_set_callback(subreq, vfs_gluster_pread_done, state);
 770
 771         talloc_set_destructor(state, vfs_gluster_pread_state_destructor);
 772
 773         return req;
 774 }
 775
 776 static void vfs_gluster_pread_do(void *private_data)
 777 {
 778         struct vfs_gluster_pread_state *state = talloc_get_type_abort(
 779                 private_data, struct vfs_gluster_pread_state);
 780         struct timespec start_time;
 781         struct timespec end_time;
 782
 783         SMBPROFILE_BYTES_ASYNC_SET_BUSY(state->profile_bytes);
 784
 785         PROFILE_TIMESTAMP(&start_time);
 786
 787         do {
 788 #ifdef HAVE_GFAPI_VER_7_6
 789                 state->ret = glfs_pread(state->fd, state->buf, state->count,
 790                                         state->offset, 0, NULL);
 791 #else
 792                 state->ret = glfs_pread(state->fd, state->buf, state->count,
 793                                         state->offset, 0);
 794 #endif
 795         } while ((state->ret == -1) && (errno == EINTR));
 796
 797         if (state->ret == -1) {
 798                 state->vfs_aio_state.error = errno;
 799         }
 800
 801         PROFILE_TIMESTAMP(&end_time);
 802
 803         state->vfs_aio_state.duration = nsec_time_diff(&end_time, &start_time);
 804
 805         SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
 806 }
 807
 808 static int vfs_gluster_pread_state_destructor(struct vfs_gluster_pread_state *state)
 809 {
 810         return -1;
 811 }
 812
 813 static void vfs_gluster_pread_done(struct tevent_req *subreq)
 814 {
 815         struct vfs_gluster_pread_state *state = tevent_req_callback_data(
 816                 subreq, struct vfs_gluster_pread_state);
 817         struct tevent_req *req = state->req;
 818         int ret;
 819
 820         ret = pthreadpool_tevent_job_recv(subreq);
 821         TALLOC_FREE(subreq);
 822         SMBPROFILE_BYTES_ASYNC_END(state->profile_bytes);
 823         talloc_set_destructor(state, NULL);
 824         if (ret != 0) {
 825                 if (ret != EAGAIN) {
 826                         tevent_req_error(req, ret);
 827                         return;
 828                 }
 829                 /*
 830                  * If we get EAGAIN from pthreadpool_tevent_job_recv() this
 831                  * means the lower level pthreadpool failed to create a new
 832                  * thread. Fallback to sync processing in that case to allow
 833                  * some progress for the client.
 834                  */
 835                 vfs_gluster_pread_do(state);
 836         }
 837
 838         tevent_req_done(req);
 839 }
 840
 841 static ssize_t vfs_gluster_pread_recv(struct tevent_req *req,
 842                                       struct vfs_aio_state *vfs_aio_state)
 843 {
 844         struct vfs_gluster_pread_state *state = tevent_req_data(
 845                 req, struct vfs_gluster_pread_state);
 846
 847         if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
 848                 return -1;
 849         }
 850
 851         *vfs_aio_state = state->vfs_aio_state;
 852         return state->ret;
 853 }
 854
 855 struct vfs_gluster_pwrite_state {
 856         ssize_t ret;
 857         glfs_fd_t *fd;
 858         const void *buf;
 859         size_t count;
 860         off_t offset;
 861
 862         struct vfs_aio_state vfs_aio_state;
 863         SMBPROFILE_BYTES_ASYNC_STATE(profile_bytes);
 864 };
 865
 866 static void vfs_gluster_pwrite_do(void *private_data);
 867 static void vfs_gluster_pwrite_done(struct tevent_req *subreq);
 868 static int vfs_gluster_pwrite_state_destructor(struct vfs_gluster_pwrite_state *state);
 869
 870 static struct tevent_req *vfs_gluster_pwrite_send(struct vfs_handle_struct
 871                                                   *handle, TALLOC_CTX *mem_ctx,
 872                                                   struct tevent_context *ev,
 873                                                   files_struct *fsp,
 874                                                   const void *data, size_t n,
 875                                                   off_t offset)
 876 {
 877         struct tevent_req *req, *subreq;
 878         struct vfs_gluster_pwrite_state *state;
 879
 880         glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
 881         if (glfd == NULL) {
 882                 DBG_ERR("Failed to fetch gluster fd\n");
 883                 return NULL;
 884         }
 885
 886         req = tevent_req_create(mem_ctx, &state, struct vfs_gluster_pwrite_state);
 887         if (req == NULL) {
 888                 return NULL;
 889         }
 890
 891         state->ret = -1;
 892         state->fd = glfd;
 893         state->buf = data;
 894         state->count = n;
 895         state->offset = offset;
 896
 897         SMBPROFILE_BYTES_ASYNC_START(syscall_asys_pwrite, profile_p,
 898                                      state->profile_bytes, n);
 899         SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
 900
 901         subreq = pthreadpool_tevent_job_send(
 902                 state, ev, handle->conn->sconn->pool,
 903                 vfs_gluster_pwrite_do, state);
 904         if (tevent_req_nomem(subreq, req)) {
 905                 return tevent_req_post(req, ev);
 906         }
 907         tevent_req_set_callback(subreq, vfs_gluster_pwrite_done, req);
 908
 909         talloc_set_destructor(state, vfs_gluster_pwrite_state_destructor);
 910
 911         return req;
 912 }
 913
 914 static void vfs_gluster_pwrite_do(void *private_data)
 915 {
 916         struct vfs_gluster_pwrite_state *state = talloc_get_type_abort(
 917                 private_data, struct vfs_gluster_pwrite_state);
 918         struct timespec start_time;
 919         struct timespec end_time;
 920
 921         SMBPROFILE_BYTES_ASYNC_SET_BUSY(state->profile_bytes);
 922
 923         PROFILE_TIMESTAMP(&start_time);
 924
 925         do {
 926 #ifdef HAVE_GFAPI_VER_7_6
 927                 state->ret = glfs_pwrite(state->fd, state->buf, state->count,
 928                                          state->offset, 0, NULL, NULL);
 929 #else
 930                 state->ret = glfs_pwrite(state->fd, state->buf, state->count,
 931                                          state->offset, 0);
 932 #endif
 933         } while ((state->ret == -1) && (errno == EINTR));
 934
 935         if (state->ret == -1) {
 936                 state->vfs_aio_state.error = errno;
 937         }
 938
 939         PROFILE_TIMESTAMP(&end_time);
 940
 941         state->vfs_aio_state.duration = nsec_time_diff(&end_time, &start_time);
 942
 943         SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
 944 }
 945
 946 static int vfs_gluster_pwrite_state_destructor(struct vfs_gluster_pwrite_state *state)
 947 {
 948         return -1;
 949 }
 950
 951 static void vfs_gluster_pwrite_done(struct tevent_req *subreq)
 952 {
 953         struct tevent_req *req = tevent_req_callback_data(
 954                 subreq, struct tevent_req);
 955         struct vfs_gluster_pwrite_state *state = tevent_req_data(
 956                 req, struct vfs_gluster_pwrite_state);
 957         int ret;
 958
 959         ret = pthreadpool_tevent_job_recv(subreq);
 960         TALLOC_FREE(subreq);
 961         SMBPROFILE_BYTES_ASYNC_END(state->profile_bytes);
 962         talloc_set_destructor(state, NULL);
 963         if (ret != 0) {
 964                 if (ret != EAGAIN) {
 965                         tevent_req_error(req, ret);
 966                         return;
 967                 }
 968                 /*
 969                  * If we get EAGAIN from pthreadpool_tevent_job_recv() this
 970                  * means the lower level pthreadpool failed to create a new
 971                  * thread. Fallback to sync processing in that case to allow
 972                  * some progress for the client.
 973                  */
 974                 vfs_gluster_pwrite_do(state);
 975         }
 976
 977         tevent_req_done(req);
 978 }
 979
 980 static ssize_t vfs_gluster_pwrite_recv(struct tevent_req *req,
 981                                        struct vfs_aio_state *vfs_aio_state)
 982 {
 983         struct vfs_gluster_pwrite_state *state = tevent_req_data(
 984                 req, struct vfs_gluster_pwrite_state);
 985
 986         if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
 987                 return -1;
 988         }
 989
 990         *vfs_aio_state = state->vfs_aio_state;
 991
 992         return state->ret;
 993 }
 994
 995 static ssize_t vfs_gluster_pwrite(struct vfs_handle_struct *handle,
 996                                   files_struct *fsp, const void *data,
 997                                   size_t n, off_t offset)
 998 {
 999         ssize_t ret;
1000         glfs_fd_t *glfd = NULL;
1001
1002         START_PROFILE_BYTES(syscall_pwrite, n);
1003
1004         glfd = vfs_gluster_fetch_glfd(handle, fsp);
1005         if (glfd == NULL) {
1006                 END_PROFILE_BYTES(syscall_pwrite);
1007                 DBG_ERR("Failed to fetch gluster fd\n");
1008                 return -1;
1009         }
1010
1011 #ifdef HAVE_GFAPI_VER_7_6
1012         ret = glfs_pwrite(glfd, data, n, offset, 0, NULL, NULL);
1013 #else
1014         ret = glfs_pwrite(glfd, data, n, offset, 0);
1015 #endif
1016         END_PROFILE_BYTES(syscall_pwrite);
1017
1018         return ret;
1019 }
1020
1021 static off_t vfs_gluster_lseek(struct vfs_handle_struct *handle,
1022                                files_struct *fsp, off_t offset, int whence)
1023 {
1024         off_t ret = 0;
1025         glfs_fd_t *glfd = NULL;
1026
1027         START_PROFILE(syscall_lseek);
1028
1029         glfd = vfs_gluster_fetch_glfd(handle, fsp);
1030         if (glfd == NULL) {
1031                 END_PROFILE(syscall_lseek);
1032                 DBG_ERR("Failed to fetch gluster fd\n");
1033                 return -1;
1034         }
1035
1036         ret = glfs_lseek(glfd, offset, whence);
1037         END_PROFILE(syscall_lseek);
1038
1039         return ret;
1040 }
1041
1042 static ssize_t vfs_gluster_sendfile(struct vfs_handle_struct *handle, int tofd,
1043                                     files_struct *fromfsp,
1044                                     const DATA_BLOB *hdr,
1045                                     off_t offset, size_t n)
1046 {
1047         errno = ENOTSUP;
1048         return -1;
1049 }
1050
1051 static ssize_t vfs_gluster_recvfile(struct vfs_handle_struct *handle,
1052                                     int fromfd, files_struct *tofsp,
1053                                     off_t offset, size_t n)
1054 {
1055         errno = ENOTSUP;
1056         return -1;
1057 }
1058
1059 static int vfs_gluster_renameat(struct vfs_handle_struct *handle,
1060                         files_struct *srcfsp,
1061                         const struct smb_filename *smb_fname_src,
1062                         files_struct *dstfsp,
1063                         const struct smb_filename *smb_fname_dst)
1064 {
1065         int ret;
1066
1067         START_PROFILE(syscall_renameat);
1068         ret = glfs_rename(handle->data, smb_fname_src->base_name,
1069                           smb_fname_dst->base_name);
1070         END_PROFILE(syscall_renameat);
1071
1072         return ret;
1073 }
1074
1075 struct vfs_gluster_fsync_state {
1076         ssize_t ret;
1077         glfs_fd_t *fd;
1078
1079         struct vfs_aio_state vfs_aio_state;
1080         SMBPROFILE_BYTES_ASYNC_STATE(profile_bytes);
1081 };
1082
1083 static void vfs_gluster_fsync_do(void *private_data);
1084 static void vfs_gluster_fsync_done(struct tevent_req *subreq);
1085 static int vfs_gluster_fsync_state_destructor(struct vfs_gluster_fsync_state *state);
1086
1087 static struct tevent_req *vfs_gluster_fsync_send(struct vfs_handle_struct
1088                                                  *handle, TALLOC_CTX *mem_ctx,
1089                                                  struct tevent_context *ev,
1090                                                  files_struct *fsp)
1091 {
1092         struct tevent_req *req, *subreq;
1093         struct vfs_gluster_fsync_state *state;
1094
1095         glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
1096         if (glfd == NULL) {
1097                 DBG_ERR("Failed to fetch gluster fd\n");
1098                 return NULL;
1099         }
1100
1101         req = tevent_req_create(mem_ctx, &state, struct vfs_gluster_fsync_state);
1102         if (req == NULL) {
1103                 return NULL;
1104         }
1105
1106         state->ret = -1;
1107         state->fd = glfd;
1108
1109         SMBPROFILE_BYTES_ASYNC_START(syscall_asys_fsync, profile_p,
1110                                      state->profile_bytes, 0);
1111         SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
1112
1113         subreq = pthreadpool_tevent_job_send(
1114                 state, ev, handle->conn->sconn->pool, vfs_gluster_fsync_do, state);
1115         if (tevent_req_nomem(subreq, req)) {
1116                 return tevent_req_post(req, ev);
1117         }
1118         tevent_req_set_callback(subreq, vfs_gluster_fsync_done, req);
1119
1120         talloc_set_destructor(state, vfs_gluster_fsync_state_destructor);
1121
1122         return req;
1123 }
1124
1125 static void vfs_gluster_fsync_do(void *private_data)
1126 {
1127         struct vfs_gluster_fsync_state *state = talloc_get_type_abort(
1128                 private_data, struct vfs_gluster_fsync_state);
1129         struct timespec start_time;
1130         struct timespec end_time;
1131
1132         SMBPROFILE_BYTES_ASYNC_SET_BUSY(state->profile_bytes);
1133
1134         PROFILE_TIMESTAMP(&start_time);
1135
1136         do {
1137 #ifdef HAVE_GFAPI_VER_7_6
1138                 state->ret = glfs_fsync(state->fd, NULL, NULL);
1139 #else
1140                 state->ret = glfs_fsync(state->fd);
1141 #endif
1142         } while ((state->ret == -1) && (errno == EINTR));
1143
1144         if (state->ret == -1) {
1145                 state->vfs_aio_state.error = errno;
1146         }
1147
1148         PROFILE_TIMESTAMP(&end_time);
1149
1150         state->vfs_aio_state.duration = nsec_time_diff(&end_time, &start_time);
1151
1152         SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
1153 }
1154
1155 static int vfs_gluster_fsync_state_destructor(struct vfs_gluster_fsync_state *state)
1156 {
1157         return -1;
1158 }
1159
1160 static void vfs_gluster_fsync_done(struct tevent_req *subreq)
1161 {
1162         struct tevent_req *req = tevent_req_callback_data(
1163                 subreq, struct tevent_req);
1164         struct vfs_gluster_fsync_state *state = tevent_req_data(
1165                 req, struct vfs_gluster_fsync_state);
1166         int ret;
1167
1168         ret = pthreadpool_tevent_job_recv(subreq);
1169         TALLOC_FREE(subreq);
1170         SMBPROFILE_BYTES_ASYNC_END(state->profile_bytes);
1171         talloc_set_destructor(state, NULL);
1172         if (ret != 0) {
1173                 if (ret != EAGAIN) {
1174                         tevent_req_error(req, ret);
1175                         return;
1176                 }
1177                 /*
1178                  * If we get EAGAIN from pthreadpool_tevent_job_recv() this
1179                  * means the lower level pthreadpool failed to create a new
1180                  * thread. Fallback to sync processing in that case to allow
1181                  * some progress for the client.
1182                  */
1183                 vfs_gluster_fsync_do(state);
1184         }
1185
1186         tevent_req_done(req);
1187 }
1188
1189 static int vfs_gluster_fsync_recv(struct tevent_req *req,
1190                                   struct vfs_aio_state *vfs_aio_state)
1191 {
1192         struct vfs_gluster_fsync_state *state = tevent_req_data(
1193                 req, struct vfs_gluster_fsync_state);
1194
1195         if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
1196                 return -1;
1197         }
1198
1199         *vfs_aio_state = state->vfs_aio_state;
1200         return state->ret;
1201 }
1202
1203 static int vfs_gluster_stat(struct vfs_handle_struct *handle,
1204                             struct smb_filename *smb_fname)
1205 {
1206         struct stat st;
1207         int ret;
1208
1209         START_PROFILE(syscall_stat);
1210         ret = glfs_stat(handle->data, smb_fname->base_name, &st);
1211         if (ret == 0) {
1212                 smb_stat_ex_from_stat(&smb_fname->st, &st);
1213         }
1214         if (ret < 0 && errno != ENOENT) {
1215                 DEBUG(0, ("glfs_stat(%s) failed: %s\n",
1216                           smb_fname->base_name, strerror(errno)));
1217         }
1218         END_PROFILE(syscall_stat);
1219
1220         return ret;
1221 }
1222
1223 static int vfs_gluster_fstat(struct vfs_handle_struct *handle,
1224                              files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1225 {
1226         struct stat st;
1227         int ret;
1228         glfs_fd_t *glfd = NULL;
1229
1230         START_PROFILE(syscall_fstat);
1231
1232         glfd = vfs_gluster_fetch_glfd(handle, fsp);
1233         if (glfd == NULL) {
1234                 END_PROFILE(syscall_fstat);
1235                 DBG_ERR("Failed to fetch gluster fd\n");
1236                 return -1;
1237         }
1238
1239         ret = glfs_fstat(glfd, &st);
1240         if (ret == 0) {
1241                 smb_stat_ex_from_stat(sbuf, &st);
1242         }
1243         if (ret < 0) {
1244                 DEBUG(0, ("glfs_fstat(%d) failed: %s\n",
1245                           fsp->fh->fd, strerror(errno)));
1246         }
1247         END_PROFILE(syscall_fstat);
1248
1249         return ret;
1250 }
1251
1252 static int vfs_gluster_lstat(struct vfs_handle_struct *handle,
1253                              struct smb_filename *smb_fname)
1254 {
1255         struct stat st;
1256         int ret;
1257
1258         START_PROFILE(syscall_lstat);
1259         ret = glfs_lstat(handle->data, smb_fname->base_name, &st);
1260         if (ret == 0) {
1261                 smb_stat_ex_from_stat(&smb_fname->st, &st);
1262         }
1263         if (ret < 0 && errno != ENOENT) {
1264                 DEBUG(0, ("glfs_lstat(%s) failed: %s\n",
1265                           smb_fname->base_name, strerror(errno)));
1266         }
1267         END_PROFILE(syscall_lstat);
1268
1269         return ret;
1270 }
1271
1272 static uint64_t vfs_gluster_get_alloc_size(struct vfs_handle_struct *handle,
1273                                            files_struct *fsp,
1274                                            const SMB_STRUCT_STAT *sbuf)
1275 {
1276         uint64_t ret;
1277
1278         START_PROFILE(syscall_get_alloc_size);
1279         ret = sbuf->st_ex_blocks * 512;
1280         END_PROFILE(syscall_get_alloc_size);
1281
1282         return ret;
1283 }
1284
1285 static int vfs_gluster_unlinkat(struct vfs_handle_struct *handle,
1286                         struct files_struct *dirfsp,
1287                         const struct smb_filename *smb_fname,
1288                         int flags)
1289 {
1290         int ret;
1291
1292         START_PROFILE(syscall_unlinkat);
1293         SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
1294         if (flags & AT_REMOVEDIR) {
1295                 ret = glfs_rmdir(handle->data, smb_fname->base_name);
1296         } else {
1297                 ret = glfs_unlink(handle->data, smb_fname->base_name);
1298         }
1299         END_PROFILE(syscall_unlinkat);
1300
1301         return ret;
1302 }
1303
1304 static int vfs_gluster_chmod(struct vfs_handle_struct *handle,
1305                                 const struct smb_filename *smb_fname,
1306                                 mode_t mode)
1307 {
1308         int ret;
1309
1310         START_PROFILE(syscall_chmod);
1311         ret = glfs_chmod(handle->data, smb_fname->base_name, mode);
1312         END_PROFILE(syscall_chmod);
1313
1314         return ret;
1315 }
1316
1317 static int vfs_gluster_fchmod(struct vfs_handle_struct *handle,
1318                               files_struct *fsp, mode_t mode)
1319 {
1320         int ret;
1321         glfs_fd_t *glfd = NULL;
1322
1323         START_PROFILE(syscall_fchmod);
1324
1325         glfd = vfs_gluster_fetch_glfd(handle, fsp);
1326         if (glfd == NULL) {
1327                 END_PROFILE(syscall_fchmod);
1328                 DBG_ERR("Failed to fetch gluster fd\n");
1329                 return -1;
1330         }
1331
1332         ret = glfs_fchmod(glfd, mode);
1333         END_PROFILE(syscall_fchmod);
1334
1335         return ret;
1336 }
1337
1338 static int vfs_gluster_fchown(struct vfs_handle_struct *handle,
1339                               files_struct *fsp, uid_t uid, gid_t gid)
1340 {
1341         int ret;
1342         glfs_fd_t *glfd = NULL;
1343
1344         START_PROFILE(syscall_fchown);
1345
1346         glfd = vfs_gluster_fetch_glfd(handle, fsp);
1347         if (glfd == NULL) {
1348                 END_PROFILE(syscall_fchown);
1349                 DBG_ERR("Failed to fetch gluster fd\n");
1350                 return -1;
1351         }
1352
1353         ret = glfs_fchown(glfd, uid, gid);
1354         END_PROFILE(syscall_fchown);
1355
1356         return ret;
1357 }
1358
1359 static int vfs_gluster_lchown(struct vfs_handle_struct *handle,
1360                         const struct smb_filename *smb_fname,
1361                         uid_t uid,
1362                         gid_t gid)
1363 {
1364         int ret;
1365
1366         START_PROFILE(syscall_lchown);
1367         ret = glfs_lchown(handle->data, smb_fname->base_name, uid, gid);
1368         END_PROFILE(syscall_lchown);
1369
1370         return ret;
1371 }
1372
1373 static int vfs_gluster_chdir(struct vfs_handle_struct *handle,
1374                         const struct smb_filename *smb_fname)
1375 {
1376         int ret;
1377
1378         START_PROFILE(syscall_chdir);
1379         ret = glfs_chdir(handle->data, smb_fname->base_name);
1380         END_PROFILE(syscall_chdir);
1381
1382         return ret;
1383 }
1384
1385 static struct smb_filename *vfs_gluster_getwd(struct vfs_handle_struct *handle,
1386                                 TALLOC_CTX *ctx)
1387 {
1388         char *cwd;
1389         char *ret;
1390         struct smb_filename *smb_fname = NULL;
1391
1392         START_PROFILE(syscall_getwd);
1393
1394         cwd = SMB_CALLOC_ARRAY(char, PATH_MAX);
1395         if (cwd == NULL) {
1396                 END_PROFILE(syscall_getwd);
1397                 return NULL;
1398         }
1399
1400         ret = glfs_getcwd(handle->data, cwd, PATH_MAX - 1);
1401         END_PROFILE(syscall_getwd);
1402
1403         if (ret == NULL) {
1404                 SAFE_FREE(cwd);
1405                 return NULL;
1406         }
1407         smb_fname = synthetic_smb_fname(ctx,
1408                                         ret,
1409                                         NULL,
1410                                         NULL,
1411                                         0);
1412         SAFE_FREE(cwd);
1413         return smb_fname;
1414 }
1415
1416 static int vfs_gluster_ntimes(struct vfs_handle_struct *handle,
1417                               const struct smb_filename *smb_fname,
1418                               struct smb_file_time *ft)
1419 {
1420         int ret = -1;
1421         struct timespec times[2];
1422
1423         START_PROFILE(syscall_ntimes);
1424
1425         if (is_omit_timespec(&ft->atime)) {
1426                 times[0].tv_sec = smb_fname->st.st_ex_atime.tv_sec;
1427                 times[0].tv_nsec = smb_fname->st.st_ex_atime.tv_nsec;
1428         } else {
1429                 times[0].tv_sec = ft->atime.tv_sec;
1430                 times[0].tv_nsec = ft->atime.tv_nsec;
1431         }
1432
1433         if (is_omit_timespec(&ft->mtime)) {
1434                 times[1].tv_sec = smb_fname->st.st_ex_mtime.tv_sec;
1435                 times[1].tv_nsec = smb_fname->st.st_ex_mtime.tv_nsec;
1436         } else {
1437                 times[1].tv_sec = ft->mtime.tv_sec;
1438                 times[1].tv_nsec = ft->mtime.tv_nsec;
1439         }
1440
1441         if ((timespec_compare(&times[0],
1442                               &smb_fname->st.st_ex_atime) == 0) &&
1443             (timespec_compare(&times[1],
1444                               &smb_fname->st.st_ex_mtime) == 0)) {
1445                 END_PROFILE(syscall_ntimes);
1446                 return 0;
1447         }
1448
1449         ret = glfs_utimens(handle->data, smb_fname->base_name, times);
1450         END_PROFILE(syscall_ntimes);
1451
1452         return ret;
1453 }
1454
1455 static int vfs_gluster_ftruncate(struct vfs_handle_struct *handle,
1456                                  files_struct *fsp, off_t offset)
1457 {
1458         int ret;
1459         glfs_fd_t *glfd = NULL;
1460
1461         START_PROFILE(syscall_ftruncate);
1462
1463         glfd = vfs_gluster_fetch_glfd(handle, fsp);
1464         if (glfd == NULL) {
1465                 END_PROFILE(syscall_ftruncate);
1466                 DBG_ERR("Failed to fetch gluster fd\n");
1467                 return -1;
1468         }
1469
1470 #ifdef HAVE_GFAPI_VER_7_6
1471         ret = glfs_ftruncate(glfd, offset, NULL, NULL);
1472 #else
1473         ret = glfs_ftruncate(glfd, offset);
1474 #endif
1475         END_PROFILE(syscall_ftruncate);
1476
1477         return ret;
1478 }
1479
1480 static int vfs_gluster_fallocate(struct vfs_handle_struct *handle,
1481                                  struct files_struct *fsp,
1482                                  uint32_t mode,
1483                                  off_t offset, off_t len)
1484 {
1485         int ret;
1486 #ifdef HAVE_GFAPI_VER_6
1487         glfs_fd_t *glfd = NULL;
1488         int keep_size, punch_hole;
1489
1490         START_PROFILE(syscall_fallocate);
1491
1492         glfd = vfs_gluster_fetch_glfd(handle, fsp);
1493         if (glfd == NULL) {
1494                 END_PROFILE(syscall_fallocate);
1495                 DBG_ERR("Failed to fetch gluster fd\n");
1496                 return -1;
1497         }
1498
1499         keep_size = mode & VFS_FALLOCATE_FL_KEEP_SIZE;
1500         punch_hole = mode & VFS_FALLOCATE_FL_PUNCH_HOLE;
1501
1502         mode &= ~(VFS_FALLOCATE_FL_KEEP_SIZE|VFS_FALLOCATE_FL_PUNCH_HOLE);
1503         if (mode != 0) {
1504                 END_PROFILE(syscall_fallocate);
1505                 errno = ENOTSUP;
1506                 return -1;
1507         }
1508
1509         if (punch_hole) {
1510                 ret = glfs_discard(glfd, offset, len);
1511                 if (ret != 0) {
1512                         DBG_DEBUG("glfs_discard failed: %s\n",
1513                                   strerror(errno));
1514                 }
1515         }
1516
1517         ret = glfs_fallocate(glfd, keep_size, offset, len);
1518         END_PROFILE(syscall_fallocate);
1519 #else
1520         errno = ENOTSUP;
1521         ret = -1;
1522 #endif
1523         return ret;
1524 }
1525
1526 static struct smb_filename *vfs_gluster_realpath(struct vfs_handle_struct *handle,
1527                                 TALLOC_CTX *ctx,
1528                                 const struct smb_filename *smb_fname)
1529 {
1530         char *result = NULL;
1531         struct smb_filename *result_fname = NULL;
1532         char *resolved_path = NULL;
1533
1534         START_PROFILE(syscall_realpath);
1535
1536         resolved_path = SMB_MALLOC_ARRAY(char, PATH_MAX+1);
1537         if (resolved_path == NULL) {
1538                 END_PROFILE(syscall_realpath);
1539                 errno = ENOMEM;
1540                 return NULL;
1541         }
1542
1543         result = glfs_realpath(handle->data,
1544                         smb_fname->base_name,
1545                         resolved_path);
1546         if (result != NULL) {
1547                 result_fname = synthetic_smb_fname(ctx, result, NULL, NULL, 0);
1548         }
1549
1550         SAFE_FREE(resolved_path);
1551         END_PROFILE(syscall_realpath);
1552
1553         return result_fname;
1554 }
1555
1556 static bool vfs_gluster_lock(struct vfs_handle_struct *handle,
1557                              files_struct *fsp, int op, off_t offset,
1558                              off_t count, int type)
1559 {
1560         struct flock flock = { 0, };
1561         int ret;
1562         glfs_fd_t *glfd = NULL;
1563         bool ok = false;
1564
1565         START_PROFILE(syscall_fcntl_lock);
1566
1567         glfd = vfs_gluster_fetch_glfd(handle, fsp);
1568         if (glfd == NULL) {
1569                 DBG_ERR("Failed to fetch gluster fd\n");
1570                 ok = false;
1571                 goto out;
1572         }
1573
1574         flock.l_type = type;
1575         flock.l_whence = SEEK_SET;
1576         flock.l_start = offset;
1577         flock.l_len = count;
1578         flock.l_pid = 0;
1579
1580         ret = glfs_posix_lock(glfd, op, &flock);
1581
1582         if (op == F_GETLK) {
1583                 /* lock query, true if someone else has locked */
1584                 if ((ret != -1) &&
1585                     (flock.l_type != F_UNLCK) &&
1586                     (flock.l_pid != 0) && (flock.l_pid != getpid())) {
1587                         ok = true;
1588                         goto out;
1589                 }
1590                 /* not me */
1591                 ok = false;
1592                 goto out;
1593         }
1594
1595         if (ret == -1) {
1596                 ok = false;
1597                 goto out;
1598         }
1599
1600         ok = true;
1601 out:
1602         END_PROFILE(syscall_fcntl_lock);
1603
1604         return ok;
1605 }
1606
1607 static int vfs_gluster_kernel_flock(struct vfs_handle_struct *handle,
1608                                     files_struct *fsp, uint32_t share_access,
1609                                     uint32_t access_mask)
1610 {
1611         errno = ENOSYS;
1612         return -1;
1613 }
1614
1615 static int vfs_gluster_fcntl(vfs_handle_struct *handle,
1616                              files_struct *fsp, int cmd, va_list cmd_arg)
1617 {
1618         /*
1619          * SMB_VFS_FCNTL() is currently only called by vfs_set_blocking() to
1620          * clear O_NONBLOCK, etc for LOCK_MAND and FIFOs. Ignore it.
1621          */
1622         if (cmd == F_GETFL) {
1623                 return 0;
1624         } else if (cmd == F_SETFL) {
1625                 va_list dup_cmd_arg;
1626                 int opt;
1627
1628                 va_copy(dup_cmd_arg, cmd_arg);
1629                 opt = va_arg(dup_cmd_arg, int);
1630                 va_end(dup_cmd_arg);
1631                 if (opt == 0) {
1632                         return 0;
1633                 }
1634                 DBG_ERR("unexpected fcntl SETFL(%d)\n", opt);
1635                 goto err_out;
1636         }
1637         DBG_ERR("unexpected fcntl: %d\n", cmd);
1638 err_out:
1639         errno = EINVAL;
1640         return -1;
1641 }
1642
1643 static int vfs_gluster_linux_setlease(struct vfs_handle_struct *handle,
1644                                       files_struct *fsp, int leasetype)
1645 {
1646         errno = ENOSYS;
1647         return -1;
1648 }
1649
1650 static bool vfs_gluster_getlock(struct vfs_handle_struct *handle,
1651                                 files_struct *fsp, off_t *poffset,
1652                                 off_t *pcount, int *ptype, pid_t *ppid)
1653 {
1654         struct flock flock = { 0, };
1655         int ret;
1656         glfs_fd_t *glfd = NULL;
1657
1658         START_PROFILE(syscall_fcntl_getlock);
1659
1660         glfd = vfs_gluster_fetch_glfd(handle, fsp);
1661         if (glfd == NULL) {
1662                 END_PROFILE(syscall_fcntl_getlock);
1663                 DBG_ERR("Failed to fetch gluster fd\n");
1664                 return false;
1665         }
1666
1667         flock.l_type = *ptype;
1668         flock.l_whence = SEEK_SET;
1669         flock.l_start = *poffset;
1670         flock.l_len = *pcount;
1671         flock.l_pid = 0;
1672
1673         ret = glfs_posix_lock(glfd, F_GETLK, &flock);
1674
1675         if (ret == -1) {
1676                 END_PROFILE(syscall_fcntl_getlock);
1677                 return false;
1678         }
1679
1680         *ptype = flock.l_type;
1681         *poffset = flock.l_start;
1682         *pcount = flock.l_len;
1683         *ppid = flock.l_pid;
1684         END_PROFILE(syscall_fcntl_getlock);
1685
1686         return true;
1687 }
1688
1689 static int vfs_gluster_symlinkat(struct vfs_handle_struct *handle,
1690                                 const char *link_target,
1691                                 struct files_struct *dirfsp,
1692                                 const struct smb_filename *new_smb_fname)
1693 {
1694         int ret;
1695
1696         START_PROFILE(syscall_symlinkat);
1697         SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
1698         ret = glfs_symlink(handle->data,
1699                         link_target,
1700                         new_smb_fname->base_name);
1701         END_PROFILE(syscall_symlinkat);
1702
1703         return ret;
1704 }
1705
1706 static int vfs_gluster_readlinkat(struct vfs_handle_struct *handle,
1707                                 files_struct *dirfsp,
1708                                 const struct smb_filename *smb_fname,
1709                                 char *buf,
1710                                 size_t bufsiz)
1711 {
1712         int ret;
1713
1714         START_PROFILE(syscall_readlinkat);
1715         SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
1716         ret = glfs_readlink(handle->data, smb_fname->base_name, buf, bufsiz);
1717         END_PROFILE(syscall_readlinkat);
1718
1719         return ret;
1720 }
1721
1722 static int vfs_gluster_linkat(struct vfs_handle_struct *handle,
1723                                 files_struct *srcfsp,
1724                                 const struct smb_filename *old_smb_fname,
1725                                 files_struct *dstfsp,
1726                                 const struct smb_filename *new_smb_fname,
1727                                 int flags)
1728 {
1729         int ret;
1730
1731         START_PROFILE(syscall_linkat);
1732
1733         SMB_ASSERT(srcfsp == srcfsp->conn->cwd_fsp);
1734         SMB_ASSERT(dstfsp == dstfsp->conn->cwd_fsp);
1735
1736         ret = glfs_link(handle->data,
1737                         old_smb_fname->base_name,
1738                         new_smb_fname->base_name);
1739         END_PROFILE(syscall_linkat);
1740
1741         return ret;
1742 }
1743
1744 static int vfs_gluster_mknodat(struct vfs_handle_struct *handle,
1745                                 files_struct *dirfsp,
1746                                 const struct smb_filename *smb_fname,
1747                                 mode_t mode,
1748                                 SMB_DEV_T dev)
1749 {
1750         int ret;
1751
1752         START_PROFILE(syscall_mknodat);
1753         SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
1754         ret = glfs_mknod(handle->data, smb_fname->base_name, mode, dev);
1755         END_PROFILE(syscall_mknodat);
1756
1757         return ret;
1758 }
1759
1760 static int vfs_gluster_chflags(struct vfs_handle_struct *handle,
1761                                 const struct smb_filename *smb_fname,
1762                                 unsigned int flags)
1763 {
1764         errno = ENOSYS;
1765         return -1;
1766 }
1767
1768 static int vfs_gluster_get_real_filename(struct vfs_handle_struct *handle,
1769                                          const char *path, const char *name,
1770                                          TALLOC_CTX *mem_ctx, char **found_name)
1771 {
1772         int ret;
1773         char key_buf[GLUSTER_NAME_MAX + 64];
1774         char val_buf[GLUSTER_NAME_MAX + 1];
1775
1776         if (strlen(name) >= GLUSTER_NAME_MAX) {
1777                 errno = ENAMETOOLONG;
1778                 return -1;
1779         }
1780
1781         snprintf(key_buf, GLUSTER_NAME_MAX + 64,
1782                  "glusterfs.get_real_filename:%s", name);
1783
1784         ret = glfs_getxattr(handle->data, path, key_buf, val_buf,
1785                             GLUSTER_NAME_MAX + 1);
1786         if (ret == -1) {
1787                 if (errno == ENOATTR) {
1788                         errno = ENOENT;
1789                 }
1790                 return -1;
1791         }
1792
1793         *found_name = talloc_strdup(mem_ctx, val_buf);
1794         if (found_name[0] == NULL) {
1795                 errno = ENOMEM;
1796                 return -1;
1797         }
1798         return 0;
1799 }
1800
1801 static const char *vfs_gluster_connectpath(struct vfs_handle_struct *handle,
1802                                 const struct smb_filename *smb_fname)
1803 {
1804         return handle->conn->connectpath;
1805 }
1806
1807 /* EA Operations */
1808
1809 static ssize_t vfs_gluster_getxattr(struct vfs_handle_struct *handle,
1810                                 const struct smb_filename *smb_fname,
1811                                 const char *name,
1812                                 void *value,
1813                                 size_t size)
1814 {
1815         return glfs_getxattr(handle->data, smb_fname->base_name,
1816                              name, value, size);
1817 }
1818
1819 static ssize_t vfs_gluster_fgetxattr(struct vfs_handle_struct *handle,
1820                                      files_struct *fsp, const char *name,
1821                                      void *value, size_t size)
1822 {
1823         glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
1824         if (glfd == NULL) {
1825                 DBG_ERR("Failed to fetch gluster fd\n");
1826                 return -1;
1827         }
1828
1829         return glfs_fgetxattr(glfd, name, value, size);
1830 }
1831
1832 static ssize_t vfs_gluster_listxattr(struct vfs_handle_struct *handle,
1833                                 const struct smb_filename *smb_fname,
1834                                 char *list,
1835                                 size_t size)
1836 {
1837         return glfs_listxattr(handle->data, smb_fname->base_name, list, size);
1838 }
1839
1840 static ssize_t vfs_gluster_flistxattr(struct vfs_handle_struct *handle,
1841                                       files_struct *fsp, char *list,
1842                                       size_t size)
1843 {
1844         glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
1845         if (glfd == NULL) {
1846                 DBG_ERR("Failed to fetch gluster fd\n");
1847                 return -1;
1848         }
1849
1850         return glfs_flistxattr(glfd, list, size);
1851 }
1852
1853 static int vfs_gluster_removexattr(struct vfs_handle_struct *handle,
1854                                 const struct smb_filename *smb_fname,
1855                                 const char *name)
1856 {
1857         return glfs_removexattr(handle->data, smb_fname->base_name, name);
1858 }
1859
1860 static int vfs_gluster_fremovexattr(struct vfs_handle_struct *handle,
1861                                     files_struct *fsp, const char *name)
1862 {
1863         glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
1864         if (glfd == NULL) {
1865                 DBG_ERR("Failed to fetch gluster fd\n");
1866                 return -1;
1867         }
1868
1869         return glfs_fremovexattr(glfd, name);
1870 }
1871
1872 static int vfs_gluster_setxattr(struct vfs_handle_struct *handle,
1873                                 const struct smb_filename *smb_fname,
1874                                 const char *name,
1875                                 const void *value, size_t size, int flags)
1876 {
1877         return glfs_setxattr(handle->data, smb_fname->base_name, name, value, size, flags);
1878 }
1879
1880 static int vfs_gluster_fsetxattr(struct vfs_handle_struct *handle,
1881                                  files_struct *fsp, const char *name,
1882                                  const void *value, size_t size, int flags)
1883 {
1884         glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
1885         if (glfd == NULL) {
1886                 DBG_ERR("Failed to fetch gluster fd\n");
1887                 return -1;
1888         }
1889
1890         return glfs_fsetxattr(glfd, name, value, size, flags);
1891 }
1892
1893 /* AIO Operations */
1894
1895 static bool vfs_gluster_aio_force(struct vfs_handle_struct *handle,
1896                                   files_struct *fsp)
1897 {
1898         return false;
1899 }
1900
1901 static NTSTATUS vfs_gluster_create_dfs_pathat(struct vfs_handle_struct *handle,
1902                                 struct files_struct *dirfsp,
1903                                 const struct smb_filename *smb_fname,
1904                                 const struct referral *reflist,
1905                                 size_t referral_count)
1906 {
1907         TALLOC_CTX *frame = talloc_stackframe();
1908         NTSTATUS status = NT_STATUS_NO_MEMORY;
1909         int ret;
1910         char *msdfs_link = NULL;
1911
1912         SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
1913
1914         /* Form the msdfs_link contents */
1915         msdfs_link = msdfs_link_string(frame,
1916                                         reflist,
1917                                         referral_count);
1918         if (msdfs_link == NULL) {
1919                 goto out;
1920         }
1921
1922         ret = glfs_symlink(handle->data,
1923                         msdfs_link,
1924                         smb_fname->base_name);
1925         if (ret == 0) {
1926                 status = NT_STATUS_OK;
1927         } else {
1928                 status = map_nt_error_from_unix(errno);
1929         }
1930
1931   out:
1932
1933         TALLOC_FREE(frame);
1934         return status;
1935 }
1936
1937 /*
1938  * Read and return the contents of a DFS redirect given a
1939  * pathname. A caller can pass in NULL for ppreflist and
1940  * preferral_count but still determine if this was a
1941  * DFS redirect point by getting NT_STATUS_OK back
1942  * without incurring the overhead of reading and parsing
1943  * the referral contents.
1944  */
1945
1946 static NTSTATUS vfs_gluster_read_dfs_pathat(struct vfs_handle_struct *handle,
1947                                 TALLOC_CTX *mem_ctx,
1948                                 struct files_struct *dirfsp,
1949                                 const struct smb_filename *smb_fname,
1950                                 struct referral **ppreflist,
1951                                 size_t *preferral_count)
1952 {
1953         NTSTATUS status = NT_STATUS_NO_MEMORY;
1954         size_t bufsize;
1955         char *link_target = NULL;
1956         int referral_len;
1957         bool ok;
1958 #if defined(HAVE_BROKEN_READLINK)
1959         char link_target_buf[PATH_MAX];
1960 #else
1961         char link_target_buf[7];
1962 #endif
1963
1964         SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
1965
1966         if (ppreflist == NULL && preferral_count == NULL) {
1967                 /*
1968                  * We're only checking if this is a DFS
1969                  * redirect. We don't need to return data.
1970                  */
1971                 bufsize = sizeof(link_target_buf);
1972                 link_target = link_target_buf;
1973         } else {
1974                 bufsize = PATH_MAX;
1975                 link_target = talloc_array(mem_ctx, char, bufsize);
1976                 if (!link_target) {
1977                         goto err;
1978                 }
1979         }
1980
1981         referral_len = glfs_readlink(handle->data,
1982                                 smb_fname->base_name,
1983                                 link_target,
1984                                 bufsize - 1);
1985         if (referral_len < 0) {
1986                 if (errno == EINVAL) {
1987                         DBG_INFO("%s is not a link.\n", smb_fname->base_name);
1988                         status = NT_STATUS_OBJECT_TYPE_MISMATCH;
1989                 } else {
1990                         status = map_nt_error_from_unix(errno);
1991                         DBG_ERR("Error reading "
1992                                 "msdfs link %s: %s\n",
1993                                 smb_fname->base_name,
1994                                 strerror(errno));
1995                 }
1996                 goto err;
1997         }
1998         link_target[referral_len] = '\0';
1999
2000         DBG_INFO("%s -> %s\n",
2001                         smb_fname->base_name,
2002                         link_target);
2003
2004         if (!strnequal(link_target, "msdfs:", 6)) {
2005                 status = NT_STATUS_OBJECT_TYPE_MISMATCH;
2006                 goto err;
2007         }
2008
2009         if (ppreflist == NULL && preferral_count == NULL) {
2010                 /* Early return for checking if this is a DFS link. */
2011                 return NT_STATUS_OK;
2012         }
2013
2014         ok = parse_msdfs_symlink(mem_ctx,
2015                         lp_msdfs_shuffle_referrals(SNUM(handle->conn)),
2016                         link_target,
2017                         ppreflist,
2018                         preferral_count);
2019
2020         if (ok) {
2021                 status = NT_STATUS_OK;
2022         } else {
2023                 status = NT_STATUS_NO_MEMORY;
2024         }
2025
2026   err:
2027
2028         if (link_target != link_target_buf) {
2029                 TALLOC_FREE(link_target);
2030         }
2031         return status;
2032 }
2033
2034 static struct vfs_fn_pointers glusterfs_fns = {
2035
2036         /* Disk Operations */
2037
2038         .connect_fn = vfs_gluster_connect,
2039         .disconnect_fn = vfs_gluster_disconnect,
2040         .disk_free_fn = vfs_gluster_disk_free,
2041         .get_quota_fn = vfs_gluster_get_quota,
2042         .set_quota_fn = vfs_gluster_set_quota,
2043         .statvfs_fn = vfs_gluster_statvfs,
2044         .fs_capabilities_fn = vfs_gluster_fs_capabilities,
2045
2046         .get_dfs_referrals_fn = NULL,
2047
2048         /* Directory Operations */
2049
2050         .opendir_fn = vfs_gluster_opendir,
2051         .fdopendir_fn = vfs_gluster_fdopendir,
2052         .readdir_fn = vfs_gluster_readdir,
2053         .seekdir_fn = vfs_gluster_seekdir,
2054         .telldir_fn = vfs_gluster_telldir,
2055         .rewind_dir_fn = vfs_gluster_rewinddir,
2056         .mkdirat_fn = vfs_gluster_mkdirat,
2057         .closedir_fn = vfs_gluster_closedir,
2058
2059         /* File Operations */
2060
2061         .open_fn = vfs_gluster_open,
2062         .create_file_fn = NULL,
2063         .close_fn = vfs_gluster_close,
2064         .pread_fn = vfs_gluster_pread,
2065         .pread_send_fn = vfs_gluster_pread_send,
2066         .pread_recv_fn = vfs_gluster_pread_recv,
2067         .pwrite_fn = vfs_gluster_pwrite,
2068         .pwrite_send_fn = vfs_gluster_pwrite_send,
2069         .pwrite_recv_fn = vfs_gluster_pwrite_recv,
2070         .lseek_fn = vfs_gluster_lseek,
2071         .sendfile_fn = vfs_gluster_sendfile,
2072         .recvfile_fn = vfs_gluster_recvfile,
2073         .renameat_fn = vfs_gluster_renameat,
2074         .fsync_send_fn = vfs_gluster_fsync_send,
2075         .fsync_recv_fn = vfs_gluster_fsync_recv,
2076
2077         .stat_fn = vfs_gluster_stat,
2078         .fstat_fn = vfs_gluster_fstat,
2079         .lstat_fn = vfs_gluster_lstat,
2080         .get_alloc_size_fn = vfs_gluster_get_alloc_size,
2081         .unlinkat_fn = vfs_gluster_unlinkat,
2082
2083         .chmod_fn = vfs_gluster_chmod,
2084         .fchmod_fn = vfs_gluster_fchmod,
2085         .fchown_fn = vfs_gluster_fchown,
2086         .lchown_fn = vfs_gluster_lchown,
2087         .chdir_fn = vfs_gluster_chdir,
2088         .getwd_fn = vfs_gluster_getwd,
2089         .ntimes_fn = vfs_gluster_ntimes,
2090         .ftruncate_fn = vfs_gluster_ftruncate,
2091         .fallocate_fn = vfs_gluster_fallocate,
2092         .lock_fn = vfs_gluster_lock,
2093         .kernel_flock_fn = vfs_gluster_kernel_flock,
2094         .fcntl_fn = vfs_gluster_fcntl,
2095         .linux_setlease_fn = vfs_gluster_linux_setlease,
2096         .getlock_fn = vfs_gluster_getlock,
2097         .symlinkat_fn = vfs_gluster_symlinkat,
2098         .readlinkat_fn = vfs_gluster_readlinkat,
2099         .linkat_fn = vfs_gluster_linkat,
2100         .mknodat_fn = vfs_gluster_mknodat,
2101         .realpath_fn = vfs_gluster_realpath,
2102         .chflags_fn = vfs_gluster_chflags,
2103         .file_id_create_fn = NULL,
2104         .streaminfo_fn = NULL,
2105         .get_real_filename_fn = vfs_gluster_get_real_filename,
2106         .connectpath_fn = vfs_gluster_connectpath,
2107         .create_dfs_pathat_fn = vfs_gluster_create_dfs_pathat,
2108         .read_dfs_pathat_fn = vfs_gluster_read_dfs_pathat,
2109
2110         .brl_lock_windows_fn = NULL,
2111         .brl_unlock_windows_fn = NULL,
2112         .strict_lock_check_fn = NULL,
2113         .translate_name_fn = NULL,
2114         .fsctl_fn = NULL,
2115
2116         /* NT ACL Operations */
2117         .fget_nt_acl_fn = NULL,
2118         .get_nt_acl_fn = NULL,
2119         .fset_nt_acl_fn = NULL,
2120         .audit_file_fn = NULL,
2121
2122         /* Posix ACL Operations */
2123         .sys_acl_get_file_fn = posixacl_xattr_acl_get_file,
2124         .sys_acl_get_fd_fn = posixacl_xattr_acl_get_fd,
2125         .sys_acl_blob_get_file_fn = posix_sys_acl_blob_get_file,
2126         .sys_acl_blob_get_fd_fn = posix_sys_acl_blob_get_fd,
2127         .sys_acl_set_file_fn = posixacl_xattr_acl_set_file,
2128         .sys_acl_set_fd_fn = posixacl_xattr_acl_set_fd,
2129         .sys_acl_delete_def_file_fn = posixacl_xattr_acl_delete_def_file,
2130
2131         /* EA Operations */
2132         .getxattr_fn = vfs_gluster_getxattr,
2133         .getxattrat_send_fn = vfs_not_implemented_getxattrat_send,
2134         .getxattrat_recv_fn = vfs_not_implemented_getxattrat_recv,
2135         .fgetxattr_fn = vfs_gluster_fgetxattr,
2136         .listxattr_fn = vfs_gluster_listxattr,
2137         .flistxattr_fn = vfs_gluster_flistxattr,
2138         .removexattr_fn = vfs_gluster_removexattr,
2139         .fremovexattr_fn = vfs_gluster_fremovexattr,
2140         .setxattr_fn = vfs_gluster_setxattr,
2141         .fsetxattr_fn = vfs_gluster_fsetxattr,
2142
2143         /* AIO Operations */
2144         .aio_force_fn = vfs_gluster_aio_force,
2145
2146         /* Durable handle Operations */
2147         .durable_cookie_fn = NULL,
2148         .durable_disconnect_fn = NULL,
2149         .durable_reconnect_fn = NULL,
2150 };
2151
2152 static_decl_vfs;
2153 NTSTATUS vfs_glusterfs_init(TALLOC_CTX *ctx)
2154 {
2155         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
2156                                 "glusterfs", &glusterfs_fns);
2157 }