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, see <http://www.gnu.org/licenses/>.
  22
  23
  24 */
  25
  26 #include "includes.h"
  27
  28 #undef DBGC_CLASS
  29 #define DBGC_CLASS DBGC_VFS
  30
  31 #include <gpfs_gpl.h>
  32 #include "nfs4_acls.h"
  33
  34
  35 static int vfs_gpfs_kernel_flock(vfs_handle_struct *handle, files_struct *fsp,
  36                                  int fd, uint32 share_mode)
  37 {
  38
  39         START_PROFILE(syscall_kernel_flock);
  40
  41         kernel_flock(fsp->fh->fd, share_mode);
  42
  43         if (!set_gpfs_sharemode(fsp, fsp->access_mask, fsp->share_access)) {
  44
  45                 return -1;
  46
  47         }
  48
  49         END_PROFILE(syscall_kernel_flock);
  50
  51         return 0;
  52 }
  53
  54 static int vfs_gpfs_setlease(vfs_handle_struct *handle, files_struct *fsp,
  55                                  int fd, int leasetype)
  56 {
  57         int ret;
  58
  59         START_PROFILE(syscall_linux_setlease);
  60
  61         if ( linux_set_lease_sighandler(fd) == -1)
  62                 return -1;
  63
  64         ret = set_gpfs_lease(fd,leasetype);
  65
  66         if ( ret < 0 ) {
  67                 /* This must have come from GPFS not being available */
  68                 /* or some other error, hence call the default */
  69                 ret = linux_setlease(fd, leasetype);
  70         }
  71
  72         END_PROFILE(syscall_linux_setlease);
  73
  74         return ret;
  75 }
  76
  77
  78
  79 static void gpfs_dumpacl(int level, struct gpfs_acl *gacl)
  80 {
  81         int     i;
  82         if (gacl==NULL)
  83         {
  84                 DEBUG(0, ("gpfs acl is NULL\n"));
  85                 return;
  86         }
  87
  88         DEBUG(level, ("gpfs acl: nace: %d, type:%d, version:%d, level:%d, len:%d\n",
  89                 gacl->acl_nace, gacl->acl_type, gacl->acl_version, gacl->acl_level, gacl->acl_len));
  90         for(i=0; i<gacl->acl_nace; i++)
  91         {
  92                 struct gpfs_ace_v4 *gace = gacl->ace_v4 + i;
  93                 DEBUG(level, ("\tace[%d]: type:%d, flags:0x%x, mask:0x%x, iflags:0x%x, who:%u\n",
  94                         i, gace->aceType, gace->aceFlags, gace->aceMask,
  95                         gace->aceIFlags, gace->aceWho));
  96         }
  97 }
  98
  99 static struct gpfs_acl *gpfs_getacl_alloc(const char *fname, gpfs_aclType_t type)
 100 {
 101         struct gpfs_acl *acl;
 102         size_t len = 200;
 103         int ret;
 104         TALLOC_CTX *mem_ctx = talloc_tos();
 105
 106         acl = (struct gpfs_acl *)TALLOC_SIZE(mem_ctx, len);
 107         if (acl == NULL) {
 108                 errno = ENOMEM;
 109                 return NULL;
 110         }
 111
 112         acl->acl_len = len;
 113         acl->acl_level = 0;
 114         acl->acl_version = 0;
 115         acl->acl_type = type;
 116
 117         ret = smbd_gpfs_getacl((char *)fname, GPFS_GETACL_STRUCT | GPFS_ACL_SAMBA, acl);
 118         if ((ret != 0) && (errno == ENOSPC)) {
 119                 struct gpfs_acl *new_acl = (struct gpfs_acl *)TALLOC_SIZE(
 120                         mem_ctx, acl->acl_len + sizeof(struct gpfs_acl));
 121                 if (new_acl == NULL) {
 122                         errno = ENOMEM;
 123                         return NULL;
 124                 }
 125
 126                 new_acl->acl_len = acl->acl_len;
 127                 new_acl->acl_level = acl->acl_level;
 128                 new_acl->acl_version = acl->acl_version;
 129                 new_acl->acl_type = acl->acl_type;
 130                 acl = new_acl;
 131
 132                 ret = smbd_gpfs_getacl((char *)fname, GPFS_GETACL_STRUCT | GPFS_ACL_SAMBA, acl);
 133         }
 134         if (ret != 0)
 135         {
 136                 DEBUG(8, ("smbd_gpfs_getacl failed with %s\n",strerror(errno)));
 137                 return NULL;
 138         }
 139
 140         return acl;
 141 }
 142
 143 /* Tries to get nfs4 acls and returns SMB ACL allocated.
 144  * On failure returns 1 if it got non-NFSv4 ACL to prompt
 145  * retry with POSIX ACL checks.
 146  * On failure returns -1 if there is system (GPFS) error, check errno.
 147  * Returns 0 on success
 148  */
 149 static int gpfs_get_nfs4_acl(const char *fname, SMB4ACL_T **ppacl)
 150 {
 151         int i;
 152         struct gpfs_acl *gacl = NULL;
 153         DEBUG(10, ("gpfs_get_nfs4_acl invoked for %s\n", fname));
 154
 155         /* First get the real acl length */
 156         gacl = gpfs_getacl_alloc(fname, GPFS_ACL_TYPE_NFS4);
 157         if (gacl == NULL) {
 158                 DEBUG(9, ("gpfs_getacl failed for %s with %s\n",
 159                            fname, strerror(errno)));
 160                 return -1;
 161         }
 162
 163         if (gacl->acl_type != GPFS_ACL_TYPE_NFS4) {
 164                 DEBUG(10, ("Got non-nfsv4 acl\n"));
 165                 /* Retry with POSIX ACLs check */
 166                 return 1;
 167         }
 168
 169         *ppacl = smb_create_smb4acl();
 170
 171         DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
 172                    gacl->acl_len, gacl->acl_level, gacl->acl_version,
 173                    gacl->acl_nace));
 174
 175         for (i=0; i<gacl->acl_nace; i++) {
 176                 struct gpfs_ace_v4 *gace = &gacl->ace_v4[i];
 177                 SMB_ACE4PROP_T smbace;
 178                 DEBUG(10, ("type: %d, iflags: %x, flags: %x, mask: %x, "
 179                            "who: %d\n", gace->aceType, gace->aceIFlags,
 180                            gace->aceFlags, gace->aceMask, gace->aceWho));
 181
 182                 memset(&smbace, 0, sizeof(SMB4ACE_T));
 183                 if (gace->aceIFlags & ACE4_IFLAG_SPECIAL_ID) {
 184                         smbace.flags |= SMB_ACE4_ID_SPECIAL;
 185                         switch (gace->aceWho) {
 186                         case ACE4_SPECIAL_OWNER:
 187                                 smbace.who.special_id = SMB_ACE4_WHO_OWNER;
 188                                 break;
 189                         case ACE4_SPECIAL_GROUP:
 190                                 smbace.who.special_id = SMB_ACE4_WHO_GROUP;
 191                                 break;
 192                         case ACE4_SPECIAL_EVERYONE:
 193                                 smbace.who.special_id = SMB_ACE4_WHO_EVERYONE;
 194                                 break;
 195                         default:
 196                                 DEBUG(8, ("invalid special gpfs id %d "
 197                                           "ignored\n", gace->aceWho));
 198                                 continue; /* don't add it */
 199                         }
 200                 } else {
 201                         if (gace->aceFlags & ACE4_FLAG_GROUP_ID)
 202                                 smbace.who.gid = gace->aceWho;
 203                         else
 204                                 smbace.who.uid = gace->aceWho;
 205                 }
 206
 207                 /* remove redundent deny entries */
 208                 if (i > 0 && gace->aceType == SMB_ACE4_ACCESS_DENIED_ACE_TYPE) {
 209                         struct gpfs_ace_v4 *prev = &gacl->ace_v4[i-1];
 210                         if (prev->aceType == SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE &&
 211                                         prev->aceFlags == gace->aceFlags &&
 212                                         prev->aceIFlags == gace->aceIFlags &&
 213                                         (gace->aceMask & prev->aceMask) == 0 &&
 214                                         gace->aceWho == prev->aceWho) {
 215                                 /* its redundent - skip it */
 216                                 continue;
 217                         }
 218                 }
 219
 220                 smbace.aceType = gace->aceType;
 221                 smbace.aceFlags = gace->aceFlags;
 222                 smbace.aceMask = gace->aceMask;
 223                 smb_add_ace4(*ppacl, &smbace);
 224         }
 225
 226         return 0;
 227 }
 228
 229 static NTSTATUS gpfsacl_fget_nt_acl(vfs_handle_struct *handle,
 230         files_struct *fsp, uint32 security_info,
 231         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_fget_nt_acl_nfs4(fsp, security_info, ppdesc, pacl);
 241
 242         if (result > 0) {
 243                 DEBUG(10, ("retrying with posix acl...\n"));
 244                 return posix_fget_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 map_nt_error_from_unix(errno);
 249 }
 250
 251 static NTSTATUS gpfsacl_get_nt_acl(vfs_handle_struct *handle,
 252         const char *name,
 253         uint32 security_info, SEC_DESC **ppdesc)
 254 {
 255         SMB4ACL_T *pacl = NULL;
 256         int     result;
 257
 258         *ppdesc = NULL;
 259         result = gpfs_get_nfs4_acl(fsp->fsp_name, &pacl);
 260
 261         if (result == 0)
 262                 return smb_get_nt_acl_nfs4(handle->conn, name, security_info, ppdesc, pacl);
 263
 264         if (result > 0) {
 265                 DEBUG(10, ("retrying with posix acl...\n"));
 266                 return posix_get_nt_acl(handle->conn, name, security_info, ppdesc);
 267         }
 268
 269         /* GPFS ACL was not read, something wrong happened, error code is set in errno */
 270         return map_nt_error_from_unix(errno);
 271 }
 272
 273 static bool gpfsacl_process_smbacl(files_struct *fsp, SMB4ACL_T *smbacl)
 274 {
 275         int ret;
 276         gpfs_aclLen_t gacl_len;
 277         SMB4ACE_T       *smbace;
 278         struct gpfs_acl *gacl;
 279         TALLOC_CTX *mem_ctx  = talloc_tos();
 280
 281         gacl_len = sizeof(struct gpfs_acl) +
 282                 (smb_get_naces(smbacl)-1)*sizeof(gpfs_ace_v4_t);
 283
 284         gacl = TALLOC_SIZE(mem_ctx, gacl_len);
 285         if (gacl == NULL) {
 286                 DEBUG(0, ("talloc failed\n"));
 287                 errno = ENOMEM;
 288                 return False;
 289         }
 290
 291         gacl->acl_len = gacl_len;
 292         gacl->acl_level = 0;
 293         gacl->acl_version = GPFS_ACL_VERSION_NFS4;
 294         gacl->acl_type = GPFS_ACL_TYPE_NFS4;
 295         gacl->acl_nace = 0; /* change later... */
 296
 297         for (smbace=smb_first_ace4(smbacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
 298                 struct gpfs_ace_v4 *gace = &gacl->ace_v4[gacl->acl_nace];
 299                 SMB_ACE4PROP_T  *aceprop = smb_get_ace4(smbace);
 300
 301                 gace->aceType = aceprop->aceType;
 302                 gace->aceFlags = aceprop->aceFlags;
 303                 gace->aceMask = aceprop->aceMask;
 304                 gace->aceIFlags = (aceprop->flags&SMB_ACE4_ID_SPECIAL) ? ACE4_IFLAG_SPECIAL_ID : 0;
 305
 306                 if (aceprop->flags&SMB_ACE4_ID_SPECIAL)
 307                 {
 308                         switch(aceprop->who.special_id)
 309                         {
 310                         case SMB_ACE4_WHO_EVERYONE:
 311                                 gace->aceWho = ACE4_SPECIAL_EVERYONE;
 312                                 break;
 313                         case SMB_ACE4_WHO_OWNER:
 314                                 gace->aceWho = ACE4_SPECIAL_OWNER;
 315                                 break;
 316                         case SMB_ACE4_WHO_GROUP:
 317                                 gace->aceWho = ACE4_SPECIAL_GROUP;
 318                                 break;
 319                         default:
 320                                 DEBUG(8, ("unsupported special_id %d\n", aceprop->who.special_id));
 321                                 continue; /* don't add it !!! */
 322                         }
 323                 } else {
 324                         /* just only for the type safety... */
 325                         if (aceprop->aceFlags&SMB_ACE4_IDENTIFIER_GROUP)
 326                                 gace->aceWho = aceprop->who.gid;
 327                         else
 328                                 gace->aceWho = aceprop->who.uid;
 329                 }
 330
 331                 gacl->acl_nace++;
 332         }
 333
 334         ret = smbd_gpfs_putacl(fsp->fsp_name, GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gacl);
 335         if (ret != 0) {
 336                 DEBUG(8, ("gpfs_putacl failed with %s\n", strerror(errno)));
 337                 gpfs_dumpacl(8, gacl);
 338                 return False;
 339         }
 340
 341         DEBUG(10, ("gpfs_putacl succeeded\n"));
 342         return True;
 343 }
 344
 345 static NTSTATUS gpfsacl_set_nt_acl_internal(files_struct *fsp, uint32 security_info_sent, SEC_DESC *psd)
 346 {
 347         struct gpfs_acl *acl;
 348         NTSTATUS result = NT_STATUS_ACCESS_DENIED;
 349
 350         acl = gpfs_getacl_alloc(fsp->fsp_name, GPFS_ACL_TYPE_ACCESS);
 351         if (acl == NULL)
 352                 return result;
 353
 354         if (acl->acl_version&GPFS_ACL_VERSION_NFS4)
 355         {
 356                 result = smb_set_nt_acl_nfs4(
 357                         fsp, security_info_sent, psd,
 358                         gpfsacl_process_smbacl);
 359         } else { /* assume POSIX ACL - by default... */
 360                 result = set_nt_acl(fsp, security_info_sent, psd);
 361         }
 362
 363         return result;
 364 }
 365
 366 static NTSTATUS gpfsacl_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp, uint32 security_info_sent, SEC_DESC *psd)
 367 {
 368         return gpfsacl_set_nt_acl_internal(fsp, security_info_sent, psd);
 369 }
 370
 371 static NTSTATUS gpfsacl_set_nt_acl(vfs_handle_struct *handle, files_struct *fsp, char *name, uint32 security_info_sent, SEC_DESC *psd)
 372 {
 373         return gpfsacl_set_nt_acl_internal(fsp, security_info_sent, psd);
 374 }
 375
 376 static SMB_ACL_T gpfs2smb_acl(const struct gpfs_acl *pacl)
 377 {
 378         SMB_ACL_T result;
 379         int i;
 380
 381         result = sys_acl_init(pacl->acl_nace);
 382         if (result == NULL) {
 383                 errno = ENOMEM;
 384                 return NULL;
 385         }
 386
 387         result->count = pacl->acl_nace;
 388
 389         for (i=0; i<pacl->acl_nace; i++) {
 390                 struct smb_acl_entry *ace = &result->acl[i];
 391                 const struct gpfs_ace_v1 *g_ace = &pacl->ace_v1[i];
 392
 393                 DEBUG(10, ("Converting type %d id %lu perm %x\n",
 394                            (int)g_ace->ace_type, (unsigned long)g_ace->ace_who,
 395                            (int)g_ace->ace_perm));
 396
 397                 switch (g_ace->ace_type) {
 398                 case GPFS_ACL_USER:
 399                         ace->a_type = SMB_ACL_USER;
 400                         ace->uid = (uid_t)g_ace->ace_who;
 401                         break;
 402                 case GPFS_ACL_USER_OBJ:
 403                         ace->a_type = SMB_ACL_USER_OBJ;
 404                         break;
 405                 case GPFS_ACL_GROUP:
 406                         ace->a_type = SMB_ACL_GROUP;
 407                         ace->gid = (gid_t)g_ace->ace_who;
 408                         break;
 409                 case GPFS_ACL_GROUP_OBJ:
 410                         ace->a_type = SMB_ACL_GROUP_OBJ;
 411                         break;
 412                 case GPFS_ACL_OTHER:
 413                         ace->a_type = SMB_ACL_OTHER;
 414                         break;
 415                 case GPFS_ACL_MASK:
 416                         ace->a_type = SMB_ACL_MASK;
 417                         break;
 418                 default:
 419                         DEBUG(10, ("Got invalid ace_type: %d\n",
 420                                    g_ace->ace_type));
 421                         errno = EINVAL;
 422                         SAFE_FREE(result);
 423                         return NULL;
 424                 }
 425
 426                 ace->a_perm = 0;
 427                 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_READ) ?
 428                         SMB_ACL_READ : 0;
 429                 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_WRITE) ?
 430                         SMB_ACL_WRITE : 0;
 431                 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_EXECUTE) ?
 432                         SMB_ACL_EXECUTE : 0;
 433
 434                 DEBUGADD(10, ("Converted to %d perm %x\n",
 435                               ace->a_type, ace->a_perm));
 436         }
 437
 438         return result;
 439 }
 440
 441 static SMB_ACL_T gpfsacl_get_posix_acl(const char *path, gpfs_aclType_t type)
 442 {
 443         struct gpfs_acl *pacl;
 444         SMB_ACL_T result = NULL;
 445
 446         pacl = gpfs_getacl_alloc(path, type);
 447
 448         if (pacl == NULL) {
 449                 DEBUG(10, ("gpfs_getacl failed for %s with %s\n",
 450                            path, strerror(errno)));
 451                 if (errno == 0) {
 452                         errno = EINVAL;
 453                 }
 454                 goto done;
 455         }
 456
 457         if (pacl->acl_version != GPFS_ACL_VERSION_POSIX) {
 458                 DEBUG(10, ("Got acl version %d, expected %d\n",
 459                            pacl->acl_version, GPFS_ACL_VERSION_POSIX));
 460                 errno = EINVAL;
 461                 goto done;
 462         }
 463
 464         DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
 465                    pacl->acl_len, pacl->acl_level, pacl->acl_version,
 466                    pacl->acl_nace));
 467
 468         result = gpfs2smb_acl(pacl);
 469         if (result == NULL) {
 470                 goto done;
 471         }
 472
 473  done:
 474
 475         if (errno != 0) {
 476                 SAFE_FREE(result);
 477         }
 478         return result;
 479 }
 480
 481 SMB_ACL_T gpfsacl_sys_acl_get_file(vfs_handle_struct *handle,
 482
 483                                     const char *path_p,
 484                                     SMB_ACL_TYPE_T type)
 485 {
 486         gpfs_aclType_t gpfs_type;
 487
 488         switch(type) {
 489         case SMB_ACL_TYPE_ACCESS:
 490                 gpfs_type = GPFS_ACL_TYPE_ACCESS;
 491                 break;
 492         case SMB_ACL_TYPE_DEFAULT:
 493                 gpfs_type = GPFS_ACL_TYPE_DEFAULT;
 494                 break;
 495         default:
 496                 DEBUG(0, ("Got invalid type: %d\n", type));
 497                 smb_panic("exiting");
 498         }
 499
 500         return gpfsacl_get_posix_acl(path_p, gpfs_type);
 501 }
 502
 503 SMB_ACL_T gpfsacl_sys_acl_get_fd(vfs_handle_struct *handle,
 504                                   files_struct *fsp,
 505                                   int fd)
 506 {
 507         return gpfsacl_get_posix_acl(fsp->fsp_name, GPFS_ACL_TYPE_ACCESS);
 508 }
 509
 510 static struct gpfs_acl *smb2gpfs_acl(const SMB_ACL_T pacl,
 511                                      SMB_ACL_TYPE_T type)
 512 {
 513         gpfs_aclLen_t len;
 514         struct gpfs_acl *result;
 515         int i;
 516         union gpfs_ace_union
 517         {
 518                 gpfs_ace_v1_t  ace_v1[1]; /* when GPFS_ACL_VERSION_POSIX */
 519                 gpfs_ace_v4_t  ace_v4[1]; /* when GPFS_ACL_VERSION_NFS4  */
 520         };
 521
 522         DEBUG(10, ("smb2gpfs_acl: Got ACL with %d entries\n", pacl->count));
 523
 524         len = sizeof(struct gpfs_acl) - sizeof(union gpfs_ace_union) +
 525                 (pacl->count)*sizeof(gpfs_ace_v1_t);
 526
 527         result = SMB_MALLOC(len);
 528         if (result == NULL) {
 529                 errno = ENOMEM;
 530                 return result;
 531         }
 532
 533         result->acl_len = len;
 534         result->acl_level = 0;
 535         result->acl_version = GPFS_ACL_VERSION_POSIX;
 536         result->acl_type = (type == SMB_ACL_TYPE_DEFAULT) ?
 537                 GPFS_ACL_TYPE_DEFAULT : GPFS_ACL_TYPE_ACCESS;
 538         result->acl_nace = pacl->count;
 539
 540         for (i=0; i<pacl->count; i++) {
 541                 const struct smb_acl_entry *ace = &pacl->acl[i];
 542                 struct gpfs_ace_v1 *g_ace = &result->ace_v1[i];
 543
 544                 DEBUG(10, ("Converting type %d perm %x\n",
 545                            (int)ace->a_type, (int)ace->a_perm));
 546
 547                 g_ace->ace_perm = 0;
 548
 549                 switch(ace->a_type) {
 550                 case SMB_ACL_USER:
 551                         g_ace->ace_type = GPFS_ACL_USER;
 552                         g_ace->ace_who = (gpfs_uid_t)ace->uid;
 553                         break;
 554                 case SMB_ACL_USER_OBJ:
 555                         g_ace->ace_type = GPFS_ACL_USER_OBJ;
 556                         g_ace->ace_perm |= ACL_PERM_CONTROL;
 557                         g_ace->ace_who = 0;
 558                         break;
 559                 case SMB_ACL_GROUP:
 560                         g_ace->ace_type = GPFS_ACL_GROUP;
 561                         g_ace->ace_who = (gpfs_uid_t)ace->gid;
 562                         break;
 563                 case SMB_ACL_GROUP_OBJ:
 564                         g_ace->ace_type = GPFS_ACL_GROUP_OBJ;
 565                         g_ace->ace_who = 0;
 566                         break;
 567                 case SMB_ACL_MASK:
 568                         g_ace->ace_type = GPFS_ACL_MASK;
 569                         g_ace->ace_perm = 0x8f;
 570                         g_ace->ace_who = 0;
 571                         break;
 572                 case SMB_ACL_OTHER:
 573                         g_ace->ace_type = GPFS_ACL_OTHER;
 574                         g_ace->ace_who = 0;
 575                         break;
 576                 default:
 577                         DEBUG(10, ("Got invalid ace_type: %d\n", ace->a_type));
 578                         errno = EINVAL;
 579                         SAFE_FREE(result);
 580                         return NULL;
 581                 }
 582
 583                 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_READ) ?
 584                         ACL_PERM_READ : 0;
 585                 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_WRITE) ?
 586                         ACL_PERM_WRITE : 0;
 587                 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_EXECUTE) ?
 588                         ACL_PERM_EXECUTE : 0;
 589
 590                 DEBUGADD(10, ("Converted to %d id %d perm %x\n",
 591                               g_ace->ace_type, g_ace->ace_who, g_ace->ace_perm));
 592         }
 593
 594         return result;
 595 }
 596
 597 int gpfsacl_sys_acl_set_file(vfs_handle_struct *handle,
 598
 599                               const char *name,
 600                               SMB_ACL_TYPE_T type,
 601                               SMB_ACL_T theacl)
 602 {
 603         struct gpfs_acl *gpfs_acl;
 604         int result;
 605
 606         gpfs_acl = smb2gpfs_acl(theacl, type);
 607         if (gpfs_acl == NULL) {
 608                 return -1;
 609         }
 610
 611         result = smbd_gpfs_putacl((char *)name, GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gpfs_acl);
 612
 613         SAFE_FREE(gpfs_acl);
 614         return result;
 615 }
 616
 617 int gpfsacl_sys_acl_set_fd(vfs_handle_struct *handle,
 618                             files_struct *fsp,
 619                             int fd, SMB_ACL_T theacl)
 620 {
 621         return gpfsacl_sys_acl_set_file(handle, fsp->fsp_name, SMB_ACL_TYPE_ACCESS, theacl);
 622 }
 623
 624 int gpfsacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
 625
 626                                      const char *path)
 627 {
 628         errno = ENOTSUP;
 629         return -1;
 630 }
 631
 632 static int vfs_gpfs_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
 633 {
 634                  SMB_STRUCT_STAT st;
 635                  if (SMB_VFS_NEXT_STAT(handle, path, &st) != 0) {
 636                                  return -1;
 637                  }
 638                  /* avoid chmod() if possible, to preserve acls */
 639                  if ((st.st_mode & ~S_IFMT) == mode) {
 640                                  return 0;
 641                  }
 642                  return SMB_VFS_NEXT_CHMOD(handle, path, mode);
 643 }
 644
 645 static int vfs_gpfs_fchmod(vfs_handle_struct *handle, files_struct *fsp, int fd, mode_t mode)
 646 {
 647                  SMB_STRUCT_STAT st;
 648                  if (SMB_VFS_NEXT_FSTAT(handle, fsp, fd, &st) != 0) {
 649                                  return -1;
 650                  }
 651                  /* avoid chmod() if possible, to preserve acls */
 652                  if ((st.st_mode & ~S_IFMT) == mode) {
 653                                  return 0;
 654                  }
 655                  return SMB_VFS_NEXT_FCHMOD(handle, fsp, fd, mode);
 656 }
 657
 658 /* VFS operations structure */
 659
 660 static vfs_op_tuple gpfs_op_tuples[] = {
 661
 662                 { SMB_VFS_OP(vfs_gpfs_kernel_flock), SMB_VFS_OP_KERNEL_FLOCK,
 663                                 SMB_VFS_LAYER_OPAQUE },
 664
 665         { SMB_VFS_OP(vfs_gpfs_setlease), SMB_VFS_OP_LINUX_SETLEASE,
 666                         SMB_VFS_LAYER_OPAQUE },
 667
 668         { SMB_VFS_OP(gpfsacl_fget_nt_acl), SMB_VFS_OP_FGET_NT_ACL,
 669                         SMB_VFS_LAYER_TRANSPARENT },
 670
 671         { SMB_VFS_OP(gpfsacl_get_nt_acl), SMB_VFS_OP_GET_NT_ACL,
 672                         SMB_VFS_LAYER_TRANSPARENT },
 673
 674         { SMB_VFS_OP(gpfsacl_fset_nt_acl), SMB_VFS_OP_FSET_NT_ACL,
 675                         SMB_VFS_LAYER_TRANSPARENT },
 676
 677         { SMB_VFS_OP(gpfsacl_set_nt_acl), SMB_VFS_OP_SET_NT_ACL,
 678                         SMB_VFS_LAYER_TRANSPARENT },
 679
 680         { SMB_VFS_OP(gpfsacl_sys_acl_get_file), SMB_VFS_OP_SYS_ACL_GET_FILE,
 681                         SMB_VFS_LAYER_TRANSPARENT },
 682
 683         { SMB_VFS_OP(gpfsacl_sys_acl_get_fd), SMB_VFS_OP_SYS_ACL_GET_FD,
 684                         SMB_VFS_LAYER_TRANSPARENT },
 685
 686         { SMB_VFS_OP(gpfsacl_sys_acl_set_file), SMB_VFS_OP_SYS_ACL_SET_FILE,
 687                         SMB_VFS_LAYER_TRANSPARENT },
 688
 689         { SMB_VFS_OP(gpfsacl_sys_acl_set_fd), SMB_VFS_OP_SYS_ACL_SET_FD,
 690                         SMB_VFS_LAYER_TRANSPARENT },
 691
 692         { SMB_VFS_OP(gpfsacl_sys_acl_delete_def_file),
 693                 SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE,
 694                 SMB_VFS_LAYER_TRANSPARENT },
 695
 696         { SMB_VFS_OP(vfs_gpfs_chmod), SMB_VFS_OP_CHMOD,
 697                 SMB_VFS_LAYER_TRANSPARENT },
 698
 699         { SMB_VFS_OP(vfs_gpfs_fchmod), SMB_VFS_OP_FCHMOD,
 700                 SMB_VFS_LAYER_TRANSPARENT },
 701
 702         { SMB_VFS_OP(NULL), SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP }
 703
 704 };
 705
 706
 707 NTSTATUS vfs_gpfs_init(void);
 708 NTSTATUS vfs_gpfs_init(void)
 709 {
 710         init_gpfs();
 711
 712         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "gpfs",
 713                                 gpfs_op_tuples);
 714 }