source3/modules/vfs_gpfs.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Wrap gpfs calls in vfs functions.
   4
   5    Copyright (C) Christian Ambach <cambach1@de.ibm.com> 2006
   6
   7    Major code contributions by Chetan Shringarpure <chetan.sh@in.ibm.com>
   8                             and Gomati Mohanan <gomati.mohanan@in.ibm.com>
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  23
  24
  25 */
  26
  27 #include "includes.h"
  28
  29 #undef DBGC_CLASS
  30 #define DBGC_CLASS DBGC_VFS
  31
  32 #include <gpfs_gpl.h>
  33 #include "nfs4_acls.h"
  34
  35
  36 static int vfs_gpfs_kernel_flock(vfs_handle_struct *handle, files_struct *fsp,
  37                                  int fd, uint32 share_mode)
  38 {
  39
  40         START_PROFILE(syscall_kernel_flock);
  41
  42         kernel_flock(fsp->fh->fd, share_mode);
  43
  44         if (!set_gpfs_sharemode(fsp, fsp->access_mask, fsp->share_access)) {
  45
  46                 return -1;
  47
  48         }
  49
  50         END_PROFILE(syscall_kernel_flock);
  51
  52         return 0;
  53 }
  54
  55 static int vfs_gpfs_setlease(vfs_handle_struct *handle, files_struct *fsp,
  56                                  int fd, int leasetype)
  57 {
  58         int ret;
  59
  60         START_PROFILE(syscall_linux_setlease);
  61
  62         if ( linux_set_lease_sighandler(fd) == -1)
  63                 return -1;
  64
  65         ret = set_gpfs_lease(fd,leasetype);
  66
  67         if ( ret < 0 ) {
  68                 /* This must have come from GPFS not being available */
  69                 /* or some other error, hence call the default */
  70                 ret = linux_setlease(fd, leasetype);
  71         }
  72
  73         END_PROFILE(syscall_linux_setlease);
  74
  75         return ret;
  76 }
  77
  78
  79
  80 static void gpfs_dumpacl(int level, struct gpfs_acl *gacl)
  81 {
  82         int     i;
  83         if (gacl==NULL)
  84         {
  85                 DEBUG(0, ("gpfs acl is NULL\n"));
  86                 return;
  87         }
  88
  89         DEBUG(level, ("gpfs acl: nace: %d, type:%d, version:%d, level:%d, len:%d\n",
  90                 gacl->acl_nace, gacl->acl_type, gacl->acl_version, gacl->acl_level, gacl->acl_len));
  91         for(i=0; i<gacl->acl_nace; i++)
  92         {
  93                 struct gpfs_ace_v4 *gace = gacl->ace_v4 + i;
  94                 DEBUG(level, ("\tace[%d]: type:%d, flags:0x%x, mask:0x%x, iflags:0x%x, who:%u\n",
  95                         i, gace->aceType, gace->aceFlags, gace->aceMask,
  96                         gace->aceIFlags, gace->aceWho));
  97         }
  98 }
  99
 100 static struct gpfs_acl *gpfs_getacl_alloc(const char *fname, gpfs_aclType_t type)
 101 {
 102         struct gpfs_acl *acl;
 103         size_t len = 200;
 104         int ret;
 105         TALLOC_CTX *mem_ctx = main_loop_talloc_get();
 106
 107         acl = (struct gpfs_acl *)TALLOC_SIZE(mem_ctx, len);
 108         if (acl == NULL) {
 109                 errno = ENOMEM;
 110                 return NULL;
 111         }
 112
 113         acl->acl_len = len;
 114         acl->acl_level = 0;
 115         acl->acl_version = 0;
 116         acl->acl_type = type;
 117
 118         ret = smbd_gpfs_getacl((char *)fname, GPFS_GETACL_STRUCT | GPFS_ACL_SAMBA, acl);
 119         if ((ret != 0) && (errno == ENOSPC)) {
 120                 struct gpfs_acl *new_acl = (struct gpfs_acl *)TALLOC_SIZE(
 121                         mem_ctx, acl->acl_len + sizeof(struct gpfs_acl));
 122                 if (new_acl == NULL) {
 123                         errno = ENOMEM;
 124                         return NULL;
 125                 }
 126
 127                 new_acl->acl_len = acl->acl_len;
 128                 new_acl->acl_level = acl->acl_level;
 129                 new_acl->acl_version = acl->acl_version;
 130                 new_acl->acl_type = acl->acl_type;
 131                 acl = new_acl;
 132
 133                 ret = smbd_gpfs_getacl((char *)fname, GPFS_GETACL_STRUCT | GPFS_ACL_SAMBA, acl);
 134         }
 135         if (ret != 0)
 136         {
 137                 DEBUG(8, ("smbd_gpfs_getacl failed with %s\n",strerror(errno)));
 138                 return NULL;
 139         }
 140
 141         return acl;
 142 }
 143
 144 /* Tries to get nfs4 acls and returns SMB ACL allocated.
 145  * On failure returns 1 if it got non-NFSv4 ACL to prompt
 146  * retry with POSIX ACL checks.
 147  * On failure returns -1 if there is system (GPFS) error, check errno.
 148  * Returns 0 on success
 149  */
 150 static int gpfs_get_nfs4_acl(const char *fname, SMB4ACL_T **ppacl)
 151 {
 152         int i;
 153         struct gpfs_acl *gacl = NULL;
 154         DEBUG(10, ("gpfs_get_nfs4_acl invoked for %s\n", fname));
 155
 156         /* First get the real acl length */
 157         gacl = gpfs_getacl_alloc(fname, GPFS_ACL_TYPE_NFS4);
 158         if (gacl == NULL) {
 159                 DEBUG(9, ("gpfs_getacl failed for %s with %s\n",
 160                            fname, strerror(errno)));
 161                 return -1;
 162         }
 163
 164         if (gacl->acl_type != GPFS_ACL_TYPE_NFS4) {
 165                 DEBUG(10, ("Got non-nfsv4 acl\n"));
 166                 /* Retry with POSIX ACLs check */
 167                 return 1;
 168         }
 169
 170         *ppacl = smb_create_smb4acl();
 171
 172         DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
 173                    gacl->acl_len, gacl->acl_level, gacl->acl_version,
 174                    gacl->acl_nace));
 175
 176         for (i=0; i<gacl->acl_nace; i++) {
 177                 struct gpfs_ace_v4 *gace = &gacl->ace_v4[i];
 178                 SMB_ACE4PROP_T smbace;
 179                 DEBUG(10, ("type: %d, iflags: %x, flags: %x, mask: %x, "
 180                            "who: %d\n", gace->aceType, gace->aceIFlags,
 181                            gace->aceFlags, gace->aceMask, gace->aceWho));
 182
 183                 memset(&smbace, 0, sizeof(SMB4ACE_T));
 184                 if (gace->aceIFlags & ACE4_IFLAG_SPECIAL_ID) {
 185                         smbace.flags |= SMB_ACE4_ID_SPECIAL;
 186                         switch (gace->aceWho) {
 187                         case ACE4_SPECIAL_OWNER:
 188                                 smbace.who.special_id = SMB_ACE4_WHO_OWNER;
 189                                 break;
 190                         case ACE4_SPECIAL_GROUP:
 191                                 smbace.who.special_id = SMB_ACE4_WHO_GROUP;
 192                                 break;
 193                         case ACE4_SPECIAL_EVERYONE:
 194                                 smbace.who.special_id = SMB_ACE4_WHO_EVERYONE;
 195                                 break;
 196                         default:
 197                                 DEBUG(8, ("invalid special gpfs id %d "
 198                                           "ignored\n", gace->aceWho));
 199                                 continue; /* don't add it */
 200                         }
 201                 } else {
 202                         if (gace->aceFlags & ACE4_FLAG_GROUP_ID)
 203                                 smbace.who.gid = gace->aceWho;
 204                         else
 205                                 smbace.who.uid = gace->aceWho;
 206                 }
 207
 208                 /* remove redundent deny entries */
 209                 if (i > 0 && gace->aceType == SMB_ACE4_ACCESS_DENIED_ACE_TYPE) {
 210                         struct gpfs_ace_v4 *prev = &gacl->ace_v4[i-1];
 211                         if (prev->aceType == SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE &&
 212                                         prev->aceFlags == gace->aceFlags &&
 213                                         prev->aceIFlags == gace->aceIFlags &&
 214                                         (gace->aceMask & prev->aceMask) == 0 &&
 215                                         gace->aceWho == prev->aceWho) {
 216                                 /* its redundent - skip it */
 217                                 continue;
 218                         }
 219                 }
 220
 221                 smbace.aceType = gace->aceType;
 222                 smbace.aceFlags = gace->aceFlags;
 223                 smbace.aceMask = gace->aceMask;
 224                 smb_add_ace4(*ppacl, &smbace);
 225         }
 226
 227         return 0;
 228 }
 229
 230 static size_t gpfsacl_get_nt_acl_common(files_struct *fsp,
 231         uint32 security_info, SEC_DESC **ppdesc)
 232 {
 233         SMB4ACL_T *pacl = NULL;
 234         int     result;
 235
 236         *ppdesc = NULL;
 237         result = gpfs_get_nfs4_acl(fsp->fsp_name, &pacl);
 238
 239         if (result == 0)
 240                 return smb_get_nt_acl_nfs4(fsp, security_info, ppdesc, pacl);
 241
 242         if (result > 0) {
 243                 DEBUG(10, ("retrying with posix acl...\n"));
 244                 return get_nt_acl(fsp, security_info, ppdesc);
 245         }
 246
 247         /* GPFS ACL was not read, something wrong happened, error code is set in errno */
 248         return 0;
 249 }
 250
 251 size_t gpfsacl_fget_nt_acl(vfs_handle_struct *handle,
 252         files_struct *fsp, int fd, uint32 security_info,
 253         SEC_DESC **ppdesc)
 254 {
 255         return gpfsacl_get_nt_acl_common(fsp, security_info, ppdesc);
 256 }
 257
 258 size_t gpfsacl_get_nt_acl(vfs_handle_struct *handle,
 259         files_struct *fsp, const char *name,
 260         uint32 security_info, SEC_DESC **ppdesc)
 261 {
 262         return gpfsacl_get_nt_acl_common(fsp, security_info, ppdesc);
 263 }
 264
 265 static BOOL gpfsacl_process_smbacl(files_struct *fsp, SMB4ACL_T *smbacl)
 266 {
 267         int ret;
 268         gpfs_aclLen_t gacl_len;
 269         SMB4ACE_T       *smbace;
 270         struct gpfs_acl *gacl;
 271         TALLOC_CTX *mem_ctx  = main_loop_talloc_get();
 272
 273         gacl_len = sizeof(struct gpfs_acl) +
 274                 (smb_get_naces(smbacl)-1)*sizeof(gpfs_ace_v4_t);
 275
 276         gacl = TALLOC_SIZE(mem_ctx, gacl_len);
 277         if (gacl == NULL) {
 278                 DEBUG(0, ("talloc failed\n"));
 279                 errno = ENOMEM;
 280                 return False;
 281         }
 282
 283         gacl->acl_len = gacl_len;
 284         gacl->acl_level = 0;
 285         gacl->acl_version = GPFS_ACL_VERSION_NFS4;
 286         gacl->acl_type = GPFS_ACL_TYPE_NFS4;
 287         gacl->acl_nace = 0; /* change later... */
 288
 289         for (smbace=smb_first_ace4(smbacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
 290                 struct gpfs_ace_v4 *gace = &gacl->ace_v4[gacl->acl_nace];
 291                 SMB_ACE4PROP_T  *aceprop = smb_get_ace4(smbace);
 292
 293                 gace->aceType = aceprop->aceType;
 294                 gace->aceFlags = aceprop->aceFlags;
 295                 gace->aceMask = aceprop->aceMask;
 296                 gace->aceIFlags = (aceprop->flags&SMB_ACE4_ID_SPECIAL) ? ACE4_IFLAG_SPECIAL_ID : 0;
 297
 298                 if (aceprop->flags&SMB_ACE4_ID_SPECIAL)
 299                 {
 300                         switch(aceprop->who.special_id)
 301                         {
 302                         case SMB_ACE4_WHO_EVERYONE:
 303                                 gace->aceWho = ACE4_SPECIAL_EVERYONE;
 304                                 break;
 305                         case SMB_ACE4_WHO_OWNER:
 306                                 gace->aceWho = ACE4_SPECIAL_OWNER;
 307                                 break;
 308                         case SMB_ACE4_WHO_GROUP:
 309                                 gace->aceWho = ACE4_SPECIAL_GROUP;
 310                                 break;
 311                         default:
 312                                 DEBUG(8, ("unsupported special_id %d\n", aceprop->who.special_id));
 313                                 continue; /* don't add it !!! */
 314                         }
 315                 } else {
 316                         /* just only for the type safety... */
 317                         if (aceprop->aceFlags&SMB_ACE4_IDENTIFIER_GROUP)
 318                                 gace->aceWho = aceprop->who.gid;
 319                         else
 320                                 gace->aceWho = aceprop->who.uid;
 321                 }
 322
 323                 gacl->acl_nace++;
 324         }
 325
 326         ret = smbd_gpfs_putacl(fsp->fsp_name, GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gacl);
 327         if (ret != 0) {
 328                 DEBUG(8, ("gpfs_putacl failed with %s\n", strerror(errno)));
 329                 gpfs_dumpacl(8, gacl);
 330                 return False;
 331         }
 332
 333         DEBUG(10, ("gpfs_putacl succeeded\n"));
 334         return True;
 335 }
 336
 337 static NTSTATUS gpfsacl_set_nt_acl_internal(files_struct *fsp, uint32 security_info_sent, SEC_DESC *psd)
 338 {
 339         struct gpfs_acl *acl;
 340         NTSTATUS result = NT_STATUS_ACCESS_DENIED;
 341
 342         acl = gpfs_getacl_alloc(fsp->fsp_name, GPFS_ACL_TYPE_ACCESS);
 343         if (acl == NULL)
 344                 return result;
 345
 346         if (acl->acl_version&GPFS_ACL_VERSION_NFS4)
 347         {
 348                 result = smb_set_nt_acl_nfs4(
 349                         fsp, security_info_sent, psd,
 350                         gpfsacl_process_smbacl);
 351         } else { /* assume POSIX ACL - by default... */
 352                 result = set_nt_acl(fsp, security_info_sent, psd);
 353         }
 354
 355         return result;
 356 }
 357
 358 static NTSTATUS gpfsacl_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp, int fd, uint32 security_info_sent, SEC_DESC *psd)
 359 {
 360         return gpfsacl_set_nt_acl_internal(fsp, security_info_sent, psd);
 361 }
 362
 363 static NTSTATUS gpfsacl_set_nt_acl(vfs_handle_struct *handle, files_struct *fsp, char *name, uint32 security_info_sent, SEC_DESC *psd)
 364 {
 365         return gpfsacl_set_nt_acl_internal(fsp, security_info_sent, psd);
 366 }
 367
 368 static SMB_ACL_T gpfs2smb_acl(const struct gpfs_acl *pacl)
 369 {
 370         SMB_ACL_T result;
 371         int i;
 372
 373         result = sys_acl_init(pacl->acl_nace);
 374         if (result == NULL) {
 375                 errno = ENOMEM;
 376                 return NULL;
 377         }
 378
 379         result->count = pacl->acl_nace;
 380
 381         for (i=0; i<pacl->acl_nace; i++) {
 382                 struct smb_acl_entry *ace = &result->acl[i];
 383                 const struct gpfs_ace_v1 *g_ace = &pacl->ace_v1[i];
 384
 385                 DEBUG(10, ("Converting type %d id %lu perm %x\n",
 386                            (int)g_ace->ace_type, (unsigned long)g_ace->ace_who,
 387                            (int)g_ace->ace_perm));
 388
 389                 switch (g_ace->ace_type) {
 390                 case GPFS_ACL_USER:
 391                         ace->a_type = SMB_ACL_USER;
 392                         ace->uid = (uid_t)g_ace->ace_who;
 393                         break;
 394                 case GPFS_ACL_USER_OBJ:
 395                         ace->a_type = SMB_ACL_USER_OBJ;
 396                         break;
 397                 case GPFS_ACL_GROUP:
 398                         ace->a_type = SMB_ACL_GROUP;
 399                         ace->gid = (gid_t)g_ace->ace_who;
 400                         break;
 401                 case GPFS_ACL_GROUP_OBJ:
 402                         ace->a_type = SMB_ACL_GROUP_OBJ;
 403                         break;
 404                 case GPFS_ACL_OTHER:
 405                         ace->a_type = SMB_ACL_OTHER;
 406                         break;
 407                 case GPFS_ACL_MASK:
 408                         ace->a_type = SMB_ACL_MASK;
 409                         break;
 410                 default:
 411                         DEBUG(10, ("Got invalid ace_type: %d\n",
 412                                    g_ace->ace_type));
 413                         errno = EINVAL;
 414                         SAFE_FREE(result);
 415                         return NULL;
 416                 }
 417
 418                 ace->a_perm = 0;
 419                 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_READ) ?
 420                         SMB_ACL_READ : 0;
 421                 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_WRITE) ?
 422                         SMB_ACL_WRITE : 0;
 423                 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_EXECUTE) ?
 424                         SMB_ACL_EXECUTE : 0;
 425
 426                 DEBUGADD(10, ("Converted to %d perm %x\n",
 427                               ace->a_type, ace->a_perm));
 428         }
 429
 430         return result;
 431 }
 432
 433 static SMB_ACL_T gpfsacl_get_posix_acl(const char *path, gpfs_aclType_t type)
 434 {
 435         struct gpfs_acl *pacl;
 436         SMB_ACL_T result = NULL;
 437
 438         pacl = gpfs_getacl_alloc(path, type);
 439
 440         if (pacl == NULL) {
 441                 DEBUG(10, ("gpfs_getacl failed for %s with %s\n",
 442                            path, strerror(errno)));
 443                 if (errno == 0) {
 444                         errno = EINVAL;
 445                 }
 446                 goto done;
 447         }
 448
 449         if (pacl->acl_version != GPFS_ACL_VERSION_POSIX) {
 450                 DEBUG(10, ("Got acl version %d, expected %d\n",
 451                            pacl->acl_version, GPFS_ACL_VERSION_POSIX));
 452                 errno = EINVAL;
 453                 goto done;
 454         }
 455
 456         DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
 457                    pacl->acl_len, pacl->acl_level, pacl->acl_version,
 458                    pacl->acl_nace));
 459
 460         result = gpfs2smb_acl(pacl);
 461         if (result == NULL) {
 462                 goto done;
 463         }
 464
 465  done:
 466
 467         if (errno != 0) {
 468                 SAFE_FREE(result);
 469         }
 470         return result;
 471 }
 472
 473 SMB_ACL_T gpfsacl_sys_acl_get_file(vfs_handle_struct *handle,
 474
 475                                     const char *path_p,
 476                                     SMB_ACL_TYPE_T type)
 477 {
 478         gpfs_aclType_t gpfs_type;
 479
 480         switch(type) {
 481         case SMB_ACL_TYPE_ACCESS:
 482                 gpfs_type = GPFS_ACL_TYPE_ACCESS;
 483                 break;
 484         case SMB_ACL_TYPE_DEFAULT:
 485                 gpfs_type = GPFS_ACL_TYPE_DEFAULT;
 486                 break;
 487         default:
 488                 DEBUG(0, ("Got invalid type: %d\n", type));
 489                 smb_panic("exiting");
 490         }
 491
 492         return gpfsacl_get_posix_acl(path_p, gpfs_type);
 493 }
 494
 495 SMB_ACL_T gpfsacl_sys_acl_get_fd(vfs_handle_struct *handle,
 496                                   files_struct *fsp,
 497                                   int fd)
 498 {
 499         return gpfsacl_get_posix_acl(fsp->fsp_name, GPFS_ACL_TYPE_ACCESS);
 500 }
 501
 502 static struct gpfs_acl *smb2gpfs_acl(const SMB_ACL_T pacl,
 503                                      SMB_ACL_TYPE_T type)
 504 {
 505         gpfs_aclLen_t len;
 506         struct gpfs_acl *result;
 507         int i;
 508         union gpfs_ace_union
 509         {
 510                 gpfs_ace_v1_t  ace_v1[1]; /* when GPFS_ACL_VERSION_POSIX */
 511                 gpfs_ace_v4_t  ace_v4[1]; /* when GPFS_ACL_VERSION_NFS4  */
 512         };
 513
 514         DEBUG(10, ("smb2gpfs_acl: Got ACL with %d entries\n", pacl->count));
 515
 516         len = sizeof(struct gpfs_acl) - sizeof(union gpfs_ace_union) +
 517                 (pacl->count)*sizeof(gpfs_ace_v1_t);
 518
 519         result = SMB_MALLOC(len);
 520         if (result == NULL) {
 521                 errno = ENOMEM;
 522                 return result;
 523         }
 524
 525         result->acl_len = len;
 526         result->acl_level = 0;
 527         result->acl_version = GPFS_ACL_VERSION_POSIX;
 528         result->acl_type = (type == SMB_ACL_TYPE_DEFAULT) ?
 529                 GPFS_ACL_TYPE_DEFAULT : GPFS_ACL_TYPE_ACCESS;
 530         result->acl_nace = pacl->count;
 531
 532         for (i=0; i<pacl->count; i++) {
 533                 const struct smb_acl_entry *ace = &pacl->acl[i];
 534                 struct gpfs_ace_v1 *g_ace = &result->ace_v1[i];
 535
 536                 DEBUG(10, ("Converting type %d perm %x\n",
 537                            (int)ace->a_type, (int)ace->a_perm));
 538
 539                 g_ace->ace_perm = 0;
 540
 541                 switch(ace->a_type) {
 542                 case SMB_ACL_USER:
 543                         g_ace->ace_type = GPFS_ACL_USER;
 544                         g_ace->ace_who = (gpfs_uid_t)ace->uid;
 545                         break;
 546                 case SMB_ACL_USER_OBJ:
 547                         g_ace->ace_type = GPFS_ACL_USER_OBJ;
 548                         g_ace->ace_perm |= ACL_PERM_CONTROL;
 549                         g_ace->ace_who = 0;
 550                         break;
 551                 case SMB_ACL_GROUP:
 552                         g_ace->ace_type = GPFS_ACL_GROUP;
 553                         g_ace->ace_who = (gpfs_uid_t)ace->gid;
 554                         break;
 555                 case SMB_ACL_GROUP_OBJ:
 556                         g_ace->ace_type = GPFS_ACL_GROUP_OBJ;
 557                         g_ace->ace_who = 0;
 558                         break;
 559                 case SMB_ACL_MASK:
 560                         g_ace->ace_type = GPFS_ACL_MASK;
 561                         g_ace->ace_perm = 0x8f;
 562                         g_ace->ace_who = 0;
 563                         break;
 564                 case SMB_ACL_OTHER:
 565                         g_ace->ace_type = GPFS_ACL_OTHER;
 566                         g_ace->ace_who = 0;
 567                         break;
 568                 default:
 569                         DEBUG(10, ("Got invalid ace_type: %d\n", ace->a_type));
 570                         errno = EINVAL;
 571                         SAFE_FREE(result);
 572                         return NULL;
 573                 }
 574
 575                 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_READ) ?
 576                         ACL_PERM_READ : 0;
 577                 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_WRITE) ?
 578                         ACL_PERM_WRITE : 0;
 579                 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_EXECUTE) ?
 580                         ACL_PERM_EXECUTE : 0;
 581
 582                 DEBUGADD(10, ("Converted to %d id %d perm %x\n",
 583                               g_ace->ace_type, g_ace->ace_who, g_ace->ace_perm));
 584         }
 585
 586         return result;
 587 }
 588
 589 int gpfsacl_sys_acl_set_file(vfs_handle_struct *handle,
 590
 591                               const char *name,
 592                               SMB_ACL_TYPE_T type,
 593                               SMB_ACL_T theacl)
 594 {
 595         struct gpfs_acl *gpfs_acl;
 596         int result;
 597
 598         gpfs_acl = smb2gpfs_acl(theacl, type);
 599         if (gpfs_acl == NULL) {
 600                 return -1;
 601         }
 602
 603         result = smbd_gpfs_putacl((char *)name, GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gpfs_acl);
 604
 605         SAFE_FREE(gpfs_acl);
 606         return result;
 607 }
 608
 609 int gpfsacl_sys_acl_set_fd(vfs_handle_struct *handle,
 610                             files_struct *fsp,
 611                             int fd, SMB_ACL_T theacl)
 612 {
 613         return gpfsacl_sys_acl_set_file(handle, fsp->fsp_name, SMB_ACL_TYPE_ACCESS, theacl);
 614 }
 615
 616 int gpfsacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
 617
 618                                      const char *path)
 619 {
 620         errno = ENOTSUP;
 621         return -1;
 622 }
 623
 624 static int vfs_gpfs_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
 625 {
 626                  SMB_STRUCT_STAT st;
 627                  if (SMB_VFS_NEXT_STAT(handle, path, &st) != 0) {
 628                                  return -1;
 629                  }
 630                  /* avoid chmod() if possible, to preserve acls */
 631                  if ((st.st_mode & ~S_IFMT) == mode) {
 632                                  return 0;
 633                  }
 634                  return SMB_VFS_NEXT_CHMOD(handle, path, mode);
 635 }
 636
 637 static int vfs_gpfs_fchmod(vfs_handle_struct *handle, files_struct *fsp, int fd, mode_t mode)
 638 {
 639                  SMB_STRUCT_STAT st;
 640                  if (SMB_VFS_NEXT_FSTAT(handle, fsp, fd, &st) != 0) {
 641                                  return -1;
 642                  }
 643                  /* avoid chmod() if possible, to preserve acls */
 644                  if ((st.st_mode & ~S_IFMT) == mode) {
 645                                  return 0;
 646                  }
 647                  return SMB_VFS_NEXT_FCHMOD(handle, fsp, fd, mode);
 648 }
 649
 650 /* VFS operations structure */
 651
 652 static vfs_op_tuple gpfs_op_tuples[] = {
 653
 654                 { SMB_VFS_OP(vfs_gpfs_kernel_flock), SMB_VFS_OP_KERNEL_FLOCK,
 655                                 SMB_VFS_LAYER_OPAQUE },
 656
 657         { SMB_VFS_OP(vfs_gpfs_setlease), SMB_VFS_OP_LINUX_SETLEASE,
 658                         SMB_VFS_LAYER_OPAQUE },
 659
 660         { SMB_VFS_OP(gpfsacl_fget_nt_acl), SMB_VFS_OP_FGET_NT_ACL,
 661                         SMB_VFS_LAYER_TRANSPARENT },
 662
 663         { SMB_VFS_OP(gpfsacl_get_nt_acl), SMB_VFS_OP_GET_NT_ACL,
 664                         SMB_VFS_LAYER_TRANSPARENT },
 665
 666         { SMB_VFS_OP(gpfsacl_fset_nt_acl), SMB_VFS_OP_FSET_NT_ACL,
 667                         SMB_VFS_LAYER_TRANSPARENT },
 668
 669         { SMB_VFS_OP(gpfsacl_set_nt_acl), SMB_VFS_OP_SET_NT_ACL,
 670                         SMB_VFS_LAYER_TRANSPARENT },
 671
 672         { SMB_VFS_OP(gpfsacl_sys_acl_get_file), SMB_VFS_OP_SYS_ACL_GET_FILE,
 673                         SMB_VFS_LAYER_TRANSPARENT },
 674
 675         { SMB_VFS_OP(gpfsacl_sys_acl_get_fd), SMB_VFS_OP_SYS_ACL_GET_FD,
 676                         SMB_VFS_LAYER_TRANSPARENT },
 677
 678         { SMB_VFS_OP(gpfsacl_sys_acl_set_file), SMB_VFS_OP_SYS_ACL_SET_FILE,
 679                         SMB_VFS_LAYER_TRANSPARENT },
 680
 681         { SMB_VFS_OP(gpfsacl_sys_acl_set_fd), SMB_VFS_OP_SYS_ACL_SET_FD,
 682                         SMB_VFS_LAYER_TRANSPARENT },
 683
 684         { SMB_VFS_OP(gpfsacl_sys_acl_delete_def_file),
 685                 SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE,
 686                 SMB_VFS_LAYER_TRANSPARENT },
 687
 688         { SMB_VFS_OP(vfs_gpfs_chmod), SMB_VFS_OP_CHMOD,
 689                 SMB_VFS_LAYER_TRANSPARENT },
 690
 691         { SMB_VFS_OP(vfs_gpfs_fchmod), SMB_VFS_OP_FCHMOD,
 692                 SMB_VFS_LAYER_TRANSPARENT },
 693
 694         { SMB_VFS_OP(NULL), SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP }
 695
 696 };
 697
 698
 699 NTSTATUS vfs_gpfs_init(void);
 700 NTSTATUS vfs_gpfs_init(void)
 701 {
 702         init_gpfs();
 703
 704         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "gpfs",
 705                                 gpfs_op_tuples);
 706 }