source/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 size_t gpfsacl_get_nt_acl_common(files_struct *fsp,
 230         uint32 security_info, SEC_DESC **ppdesc)
 231 {
 232         SMB4ACL_T *pacl = NULL;
 233         int     result;
 234
 235         *ppdesc = NULL;
 236         result = gpfs_get_nfs4_acl(fsp->fsp_name, &pacl);
 237
 238         if (result == 0)
 239                 return smb_get_nt_acl_nfs4(fsp, security_info, ppdesc, pacl);
 240
 241         if (result > 0) {
 242                 DEBUG(10, ("retrying with posix acl...\n"));
 243                 return get_nt_acl(fsp, security_info, ppdesc);
 244         }
 245
 246         /* GPFS ACL was not read, something wrong happened, error code is set in errno */
 247         return 0;
 248 }
 249
 250 size_t gpfsacl_fget_nt_acl(vfs_handle_struct *handle,
 251         files_struct *fsp, int fd, uint32 security_info,
 252         SEC_DESC **ppdesc)
 253 {
 254         return gpfsacl_get_nt_acl_common(fsp, security_info, ppdesc);
 255 }
 256
 257 size_t gpfsacl_get_nt_acl(vfs_handle_struct *handle,
 258         files_struct *fsp, const char *name,
 259         uint32 security_info, SEC_DESC **ppdesc)
 260 {
 261         return gpfsacl_get_nt_acl_common(fsp, security_info, ppdesc);
 262 }
 263
 264 static bool gpfsacl_process_smbacl(files_struct *fsp, SMB4ACL_T *smbacl)
 265 {
 266         int ret;
 267         gpfs_aclLen_t gacl_len;
 268         SMB4ACE_T       *smbace;
 269         struct gpfs_acl *gacl;
 270         TALLOC_CTX *mem_ctx  = talloc_tos();
 271
 272         gacl_len = sizeof(struct gpfs_acl) +
 273                 (smb_get_naces(smbacl)-1)*sizeof(gpfs_ace_v4_t);
 274
 275         gacl = TALLOC_SIZE(mem_ctx, gacl_len);
 276         if (gacl == NULL) {
 277                 DEBUG(0, ("talloc failed\n"));
 278                 errno = ENOMEM;
 279                 return False;
 280         }
 281
 282         gacl->acl_len = gacl_len;
 283         gacl->acl_level = 0;
 284         gacl->acl_version = GPFS_ACL_VERSION_NFS4;
 285         gacl->acl_type = GPFS_ACL_TYPE_NFS4;
 286         gacl->acl_nace = 0; /* change later... */
 287
 288         for (smbace=smb_first_ace4(smbacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
 289                 struct gpfs_ace_v4 *gace = &gacl->ace_v4[gacl->acl_nace];
 290                 SMB_ACE4PROP_T  *aceprop = smb_get_ace4(smbace);
 291
 292                 gace->aceType = aceprop->aceType;
 293                 gace->aceFlags = aceprop->aceFlags;
 294                 gace->aceMask = aceprop->aceMask;
 295                 gace->aceIFlags = (aceprop->flags&SMB_ACE4_ID_SPECIAL) ? ACE4_IFLAG_SPECIAL_ID : 0;
 296
 297                 if (aceprop->flags&SMB_ACE4_ID_SPECIAL)
 298                 {
 299                         switch(aceprop->who.special_id)
 300                         {
 301                         case SMB_ACE4_WHO_EVERYONE:
 302                                 gace->aceWho = ACE4_SPECIAL_EVERYONE;
 303                                 break;
 304                         case SMB_ACE4_WHO_OWNER:
 305                                 gace->aceWho = ACE4_SPECIAL_OWNER;
 306                                 break;
 307                         case SMB_ACE4_WHO_GROUP:
 308                                 gace->aceWho = ACE4_SPECIAL_GROUP;
 309                                 break;
 310                         default:
 311                                 DEBUG(8, ("unsupported special_id %d\n", aceprop->who.special_id));
 312                                 continue; /* don't add it !!! */
 313                         }
 314                 } else {
 315                         /* just only for the type safety... */
 316                         if (aceprop->aceFlags&SMB_ACE4_IDENTIFIER_GROUP)
 317                                 gace->aceWho = aceprop->who.gid;
 318                         else
 319                                 gace->aceWho = aceprop->who.uid;
 320                 }
 321
 322                 gacl->acl_nace++;
 323         }
 324
 325         ret = smbd_gpfs_putacl(fsp->fsp_name, GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gacl);
 326         if (ret != 0) {
 327                 DEBUG(8, ("gpfs_putacl failed with %s\n", strerror(errno)));
 328                 gpfs_dumpacl(8, gacl);
 329                 return False;
 330         }
 331
 332         DEBUG(10, ("gpfs_putacl succeeded\n"));
 333         return True;
 334 }
 335
 336 static NTSTATUS gpfsacl_set_nt_acl_internal(files_struct *fsp, uint32 security_info_sent, SEC_DESC *psd)
 337 {
 338         struct gpfs_acl *acl;
 339         NTSTATUS result = NT_STATUS_ACCESS_DENIED;
 340
 341         acl = gpfs_getacl_alloc(fsp->fsp_name, GPFS_ACL_TYPE_ACCESS);
 342         if (acl == NULL)
 343                 return result;
 344
 345         if (acl->acl_version&GPFS_ACL_VERSION_NFS4)
 346         {
 347                 result = smb_set_nt_acl_nfs4(
 348                         fsp, security_info_sent, psd,
 349                         gpfsacl_process_smbacl);
 350         } else { /* assume POSIX ACL - by default... */
 351                 result = set_nt_acl(fsp, security_info_sent, psd);
 352         }
 353
 354         return result;
 355 }
 356
 357 static NTSTATUS gpfsacl_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp, int fd, uint32 security_info_sent, SEC_DESC *psd)
 358 {
 359         return gpfsacl_set_nt_acl_internal(fsp, security_info_sent, psd);
 360 }
 361
 362 static NTSTATUS gpfsacl_set_nt_acl(vfs_handle_struct *handle, files_struct *fsp, char *name, uint32 security_info_sent, SEC_DESC *psd)
 363 {
 364         return gpfsacl_set_nt_acl_internal(fsp, security_info_sent, psd);
 365 }
 366
 367 static SMB_ACL_T gpfs2smb_acl(const struct gpfs_acl *pacl)
 368 {
 369         SMB_ACL_T result;
 370         int i;
 371
 372         result = sys_acl_init(pacl->acl_nace);
 373         if (result == NULL) {
 374                 errno = ENOMEM;
 375                 return NULL;
 376         }
 377
 378         result->count = pacl->acl_nace;
 379
 380         for (i=0; i<pacl->acl_nace; i++) {
 381                 struct smb_acl_entry *ace = &result->acl[i];
 382                 const struct gpfs_ace_v1 *g_ace = &pacl->ace_v1[i];
 383
 384                 DEBUG(10, ("Converting type %d id %lu perm %x\n",
 385                            (int)g_ace->ace_type, (unsigned long)g_ace->ace_who,
 386                            (int)g_ace->ace_perm));
 387
 388                 switch (g_ace->ace_type) {
 389                 case GPFS_ACL_USER:
 390                         ace->a_type = SMB_ACL_USER;
 391                         ace->uid = (uid_t)g_ace->ace_who;
 392                         break;
 393                 case GPFS_ACL_USER_OBJ:
 394                         ace->a_type = SMB_ACL_USER_OBJ;
 395                         break;
 396                 case GPFS_ACL_GROUP:
 397                         ace->a_type = SMB_ACL_GROUP;
 398                         ace->gid = (gid_t)g_ace->ace_who;
 399                         break;
 400                 case GPFS_ACL_GROUP_OBJ:
 401                         ace->a_type = SMB_ACL_GROUP_OBJ;
 402                         break;
 403                 case GPFS_ACL_OTHER:
 404                         ace->a_type = SMB_ACL_OTHER;
 405                         break;
 406                 case GPFS_ACL_MASK:
 407                         ace->a_type = SMB_ACL_MASK;
 408                         break;
 409                 default:
 410                         DEBUG(10, ("Got invalid ace_type: %d\n",
 411                                    g_ace->ace_type));
 412                         errno = EINVAL;
 413                         SAFE_FREE(result);
 414                         return NULL;
 415                 }
 416
 417                 ace->a_perm = 0;
 418                 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_READ) ?
 419                         SMB_ACL_READ : 0;
 420                 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_WRITE) ?
 421                         SMB_ACL_WRITE : 0;
 422                 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_EXECUTE) ?
 423                         SMB_ACL_EXECUTE : 0;
 424
 425                 DEBUGADD(10, ("Converted to %d perm %x\n",
 426                               ace->a_type, ace->a_perm));
 427         }
 428
 429         return result;
 430 }
 431
 432 static SMB_ACL_T gpfsacl_get_posix_acl(const char *path, gpfs_aclType_t type)
 433 {
 434         struct gpfs_acl *pacl;
 435         SMB_ACL_T result = NULL;
 436
 437         pacl = gpfs_getacl_alloc(path, type);
 438
 439         if (pacl == NULL) {
 440                 DEBUG(10, ("gpfs_getacl failed for %s with %s\n",
 441                            path, strerror(errno)));
 442                 if (errno == 0) {
 443                         errno = EINVAL;
 444                 }
 445                 goto done;
 446         }
 447
 448         if (pacl->acl_version != GPFS_ACL_VERSION_POSIX) {
 449                 DEBUG(10, ("Got acl version %d, expected %d\n",
 450                            pacl->acl_version, GPFS_ACL_VERSION_POSIX));
 451                 errno = EINVAL;
 452                 goto done;
 453         }
 454
 455         DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
 456                    pacl->acl_len, pacl->acl_level, pacl->acl_version,
 457                    pacl->acl_nace));
 458
 459         result = gpfs2smb_acl(pacl);
 460         if (result == NULL) {
 461                 goto done;
 462         }
 463
 464  done:
 465
 466         if (errno != 0) {
 467                 SAFE_FREE(result);
 468         }
 469         return result;
 470 }
 471
 472 SMB_ACL_T gpfsacl_sys_acl_get_file(vfs_handle_struct *handle,
 473
 474                                     const char *path_p,
 475                                     SMB_ACL_TYPE_T type)
 476 {
 477         gpfs_aclType_t gpfs_type;
 478
 479         switch(type) {
 480         case SMB_ACL_TYPE_ACCESS:
 481                 gpfs_type = GPFS_ACL_TYPE_ACCESS;
 482                 break;
 483         case SMB_ACL_TYPE_DEFAULT:
 484                 gpfs_type = GPFS_ACL_TYPE_DEFAULT;
 485                 break;
 486         default:
 487                 DEBUG(0, ("Got invalid type: %d\n", type));
 488                 smb_panic("exiting");
 489         }
 490
 491         return gpfsacl_get_posix_acl(path_p, gpfs_type);
 492 }
 493
 494 SMB_ACL_T gpfsacl_sys_acl_get_fd(vfs_handle_struct *handle,
 495                                   files_struct *fsp,
 496                                   int fd)
 497 {
 498         return gpfsacl_get_posix_acl(fsp->fsp_name, GPFS_ACL_TYPE_ACCESS);
 499 }
 500
 501 static struct gpfs_acl *smb2gpfs_acl(const SMB_ACL_T pacl,
 502                                      SMB_ACL_TYPE_T type)
 503 {
 504         gpfs_aclLen_t len;
 505         struct gpfs_acl *result;
 506         int i;
 507         union gpfs_ace_union
 508         {
 509                 gpfs_ace_v1_t  ace_v1[1]; /* when GPFS_ACL_VERSION_POSIX */
 510                 gpfs_ace_v4_t  ace_v4[1]; /* when GPFS_ACL_VERSION_NFS4  */
 511         };
 512
 513         DEBUG(10, ("smb2gpfs_acl: Got ACL with %d entries\n", pacl->count));
 514
 515         len = sizeof(struct gpfs_acl) - sizeof(union gpfs_ace_union) +
 516                 (pacl->count)*sizeof(gpfs_ace_v1_t);
 517
 518         result = SMB_MALLOC(len);
 519         if (result == NULL) {
 520                 errno = ENOMEM;
 521                 return result;
 522         }
 523
 524         result->acl_len = len;
 525         result->acl_level = 0;
 526         result->acl_version = GPFS_ACL_VERSION_POSIX;
 527         result->acl_type = (type == SMB_ACL_TYPE_DEFAULT) ?
 528                 GPFS_ACL_TYPE_DEFAULT : GPFS_ACL_TYPE_ACCESS;
 529         result->acl_nace = pacl->count;
 530
 531         for (i=0; i<pacl->count; i++) {
 532                 const struct smb_acl_entry *ace = &pacl->acl[i];
 533                 struct gpfs_ace_v1 *g_ace = &result->ace_v1[i];
 534
 535                 DEBUG(10, ("Converting type %d perm %x\n",
 536                            (int)ace->a_type, (int)ace->a_perm));
 537
 538                 g_ace->ace_perm = 0;
 539
 540                 switch(ace->a_type) {
 541                 case SMB_ACL_USER:
 542                         g_ace->ace_type = GPFS_ACL_USER;
 543                         g_ace->ace_who = (gpfs_uid_t)ace->uid;
 544                         break;
 545                 case SMB_ACL_USER_OBJ:
 546                         g_ace->ace_type = GPFS_ACL_USER_OBJ;
 547                         g_ace->ace_perm |= ACL_PERM_CONTROL;
 548                         g_ace->ace_who = 0;
 549                         break;
 550                 case SMB_ACL_GROUP:
 551                         g_ace->ace_type = GPFS_ACL_GROUP;
 552                         g_ace->ace_who = (gpfs_uid_t)ace->gid;
 553                         break;
 554                 case SMB_ACL_GROUP_OBJ:
 555                         g_ace->ace_type = GPFS_ACL_GROUP_OBJ;
 556                         g_ace->ace_who = 0;
 557                         break;
 558                 case SMB_ACL_MASK:
 559                         g_ace->ace_type = GPFS_ACL_MASK;
 560                         g_ace->ace_perm = 0x8f;
 561                         g_ace->ace_who = 0;
 562                         break;
 563                 case SMB_ACL_OTHER:
 564                         g_ace->ace_type = GPFS_ACL_OTHER;
 565                         g_ace->ace_who = 0;
 566                         break;
 567                 default:
 568                         DEBUG(10, ("Got invalid ace_type: %d\n", ace->a_type));
 569                         errno = EINVAL;
 570                         SAFE_FREE(result);
 571                         return NULL;
 572                 }
 573
 574                 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_READ) ?
 575                         ACL_PERM_READ : 0;
 576                 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_WRITE) ?
 577                         ACL_PERM_WRITE : 0;
 578                 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_EXECUTE) ?
 579                         ACL_PERM_EXECUTE : 0;
 580
 581                 DEBUGADD(10, ("Converted to %d id %d perm %x\n",
 582                               g_ace->ace_type, g_ace->ace_who, g_ace->ace_perm));
 583         }
 584
 585         return result;
 586 }
 587
 588 int gpfsacl_sys_acl_set_file(vfs_handle_struct *handle,
 589
 590                               const char *name,
 591                               SMB_ACL_TYPE_T type,
 592                               SMB_ACL_T theacl)
 593 {
 594         struct gpfs_acl *gpfs_acl;
 595         int result;
 596
 597         gpfs_acl = smb2gpfs_acl(theacl, type);
 598         if (gpfs_acl == NULL) {
 599                 return -1;
 600         }
 601
 602         result = smbd_gpfs_putacl((char *)name, GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gpfs_acl);
 603
 604         SAFE_FREE(gpfs_acl);
 605         return result;
 606 }
 607
 608 int gpfsacl_sys_acl_set_fd(vfs_handle_struct *handle,
 609                             files_struct *fsp,
 610                             int fd, SMB_ACL_T theacl)
 611 {
 612         return gpfsacl_sys_acl_set_file(handle, fsp->fsp_name, SMB_ACL_TYPE_ACCESS, theacl);
 613 }
 614
 615 int gpfsacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
 616
 617                                      const char *path)
 618 {
 619         errno = ENOTSUP;
 620         return -1;
 621 }
 622
 623 static int vfs_gpfs_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
 624 {
 625                  SMB_STRUCT_STAT st;
 626                  if (SMB_VFS_NEXT_STAT(handle, path, &st) != 0) {
 627                                  return -1;
 628                  }
 629                  /* avoid chmod() if possible, to preserve acls */
 630                  if ((st.st_mode & ~S_IFMT) == mode) {
 631                                  return 0;
 632                  }
 633                  return SMB_VFS_NEXT_CHMOD(handle, path, mode);
 634 }
 635
 636 static int vfs_gpfs_fchmod(vfs_handle_struct *handle, files_struct *fsp, int fd, mode_t mode)
 637 {
 638                  SMB_STRUCT_STAT st;
 639                  if (SMB_VFS_NEXT_FSTAT(handle, fsp, fd, &st) != 0) {
 640                                  return -1;
 641                  }
 642                  /* avoid chmod() if possible, to preserve acls */
 643                  if ((st.st_mode & ~S_IFMT) == mode) {
 644                                  return 0;
 645                  }
 646                  return SMB_VFS_NEXT_FCHMOD(handle, fsp, fd, mode);
 647 }
 648
 649 /* VFS operations structure */
 650
 651 static vfs_op_tuple gpfs_op_tuples[] = {
 652
 653                 { SMB_VFS_OP(vfs_gpfs_kernel_flock), SMB_VFS_OP_KERNEL_FLOCK,
 654                                 SMB_VFS_LAYER_OPAQUE },
 655
 656         { SMB_VFS_OP(vfs_gpfs_setlease), SMB_VFS_OP_LINUX_SETLEASE,
 657                         SMB_VFS_LAYER_OPAQUE },
 658
 659         { SMB_VFS_OP(gpfsacl_fget_nt_acl), SMB_VFS_OP_FGET_NT_ACL,
 660                         SMB_VFS_LAYER_TRANSPARENT },
 661
 662         { SMB_VFS_OP(gpfsacl_get_nt_acl), SMB_VFS_OP_GET_NT_ACL,
 663                         SMB_VFS_LAYER_TRANSPARENT },
 664
 665         { SMB_VFS_OP(gpfsacl_fset_nt_acl), SMB_VFS_OP_FSET_NT_ACL,
 666                         SMB_VFS_LAYER_TRANSPARENT },
 667
 668         { SMB_VFS_OP(gpfsacl_set_nt_acl), SMB_VFS_OP_SET_NT_ACL,
 669                         SMB_VFS_LAYER_TRANSPARENT },
 670
 671         { SMB_VFS_OP(gpfsacl_sys_acl_get_file), SMB_VFS_OP_SYS_ACL_GET_FILE,
 672                         SMB_VFS_LAYER_TRANSPARENT },
 673
 674         { SMB_VFS_OP(gpfsacl_sys_acl_get_fd), SMB_VFS_OP_SYS_ACL_GET_FD,
 675                         SMB_VFS_LAYER_TRANSPARENT },
 676
 677         { SMB_VFS_OP(gpfsacl_sys_acl_set_file), SMB_VFS_OP_SYS_ACL_SET_FILE,
 678                         SMB_VFS_LAYER_TRANSPARENT },
 679
 680         { SMB_VFS_OP(gpfsacl_sys_acl_set_fd), SMB_VFS_OP_SYS_ACL_SET_FD,
 681                         SMB_VFS_LAYER_TRANSPARENT },
 682
 683         { SMB_VFS_OP(gpfsacl_sys_acl_delete_def_file),
 684                 SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE,
 685                 SMB_VFS_LAYER_TRANSPARENT },
 686
 687         { SMB_VFS_OP(vfs_gpfs_chmod), SMB_VFS_OP_CHMOD,
 688                 SMB_VFS_LAYER_TRANSPARENT },
 689
 690         { SMB_VFS_OP(vfs_gpfs_fchmod), SMB_VFS_OP_FCHMOD,
 691                 SMB_VFS_LAYER_TRANSPARENT },
 692
 693         { SMB_VFS_OP(NULL), SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP }
 694
 695 };
 696
 697
 698 NTSTATUS vfs_gpfs_init(void);
 699 NTSTATUS vfs_gpfs_init(void)
 700 {
 701         init_gpfs();
 702
 703         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "gpfs",
 704                                 gpfs_op_tuples);
 705 }