source3/modules/vfs_solarisacl.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    VFS module to get and set Solaris ACLs
   4    Copyright (C) Michael Adam 2006,2008
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20
  21 #include "includes.h"
  22 #include "system/filesys.h"
  23 #include "smbd/smbd.h"
  24 #include "modules/vfs_solarisacl.h"
  25
  26 /* typedef struct acl SOLARIS_ACE_T; */
  27 typedef aclent_t SOLARIS_ACE_T;
  28 typedef aclent_t *SOLARIS_ACL_T;
  29 typedef int SOLARIS_ACL_TAG_T;   /* the type of an ACL entry */
  30 typedef o_mode_t SOLARIS_PERM_T;
  31
  32 /* for convenience: check if solaris acl entry is a default entry?  */
  33 #define _IS_DEFAULT(ace) ((ace).a_type & ACL_DEFAULT)
  34 #define _IS_OF_TYPE(ace, type) ( \
  35         (((type) == SMB_ACL_TYPE_ACCESS) && !_IS_DEFAULT(ace)) \
  36         || \
  37         (((type) == SMB_ACL_TYPE_DEFAULT) && _IS_DEFAULT(ace)) \
  38 )
  39
  40
  41 /* prototypes for private functions */
  42
  43 static SOLARIS_ACL_T solaris_acl_init(int count);
  44 static bool smb_acl_to_solaris_acl(SMB_ACL_T smb_acl,
  45                 SOLARIS_ACL_T *solariacl, int *count,
  46                 SMB_ACL_TYPE_T type);
  47 static SMB_ACL_T solaris_acl_to_smb_acl(SOLARIS_ACL_T solarisacl, int count,
  48                                         SMB_ACL_TYPE_T type, TALLOC_CTX *mem_ctx);
  49 static SOLARIS_ACL_TAG_T smb_tag_to_solaris_tag(SMB_ACL_TAG_T smb_tag);
  50 static SMB_ACL_TAG_T solaris_tag_to_smb_tag(SOLARIS_ACL_TAG_T solaris_tag);
  51 static bool solaris_add_to_acl(SOLARIS_ACL_T *solaris_acl, int *count,
  52                 SOLARIS_ACL_T add_acl, int add_count, SMB_ACL_TYPE_T type);
  53 static bool solaris_acl_get_file(const char *name, SOLARIS_ACL_T *solarisacl,
  54                 int *count);
  55 static bool solaris_acl_get_fd(int fd, SOLARIS_ACL_T *solarisacl, int *count);
  56 static bool solaris_acl_sort(SOLARIS_ACL_T theacl, int count);
  57 static SMB_ACL_PERM_T solaris_perm_to_smb_perm(const SOLARIS_PERM_T perm);
  58 static SOLARIS_PERM_T smb_perm_to_solaris_perm(const SMB_ACL_PERM_T perm);
  59 #if 0
  60 static bool solaris_acl_check(SOLARIS_ACL_T solaris_acl, int count);
  61 #endif
  62
  63 /* public functions - the api */
  64
  65 SMB_ACL_T solarisacl_sys_acl_get_file(vfs_handle_struct *handle,
  66                                 const struct smb_filename *smb_fname,
  67                                 SMB_ACL_TYPE_T type,
  68                                 TALLOC_CTX *mem_ctx)
  69 {
  70         SMB_ACL_T result = NULL;
  71         int count;
  72         SOLARIS_ACL_T solaris_acl = NULL;
  73         const char *path_p = smb_fname->base_name;
  74
  75         DEBUG(10, ("solarisacl_sys_acl_get_file called for file '%s'.\n",
  76                    path_p));
  77
  78         if (type != SMB_ACL_TYPE_ACCESS && type != SMB_ACL_TYPE_DEFAULT) {
  79                 DEBUG(10, ("invalid SMB_ACL_TYPE given (%d)\n", type));
  80                 errno = EINVAL;
  81                 goto done;
  82         }
  83
  84         DEBUGADD(10, ("getting %s acl\n",
  85                       ((type == SMB_ACL_TYPE_ACCESS) ? "access" : "default")));
  86
  87         if (!solaris_acl_get_file(path_p, &solaris_acl, &count)) {
  88                 goto done;
  89         }
  90         result = solaris_acl_to_smb_acl(solaris_acl, count, type, mem_ctx);
  91         if (result == NULL) {
  92                 DEBUG(10, ("conversion solaris_acl -> smb_acl failed (%s).\n",
  93                            strerror(errno)));
  94         }
  95
  96  done:
  97         DEBUG(10, ("solarisacl_sys_acl_get_file %s.\n",
  98                    ((result == NULL) ? "failed" : "succeeded" )));
  99         SAFE_FREE(solaris_acl);
 100         return result;
 101 }
 102
 103
 104 /*
 105  * get the access ACL of a file referred to by a fd
 106  */
 107 SMB_ACL_T solarisacl_sys_acl_get_fd(vfs_handle_struct *handle,
 108                                     files_struct *fsp, TALLOC_CTX *mem_ctx)
 109 {
 110         SMB_ACL_T result = NULL;
 111         int count;
 112         SOLARIS_ACL_T solaris_acl = NULL;
 113
 114         DEBUG(10, ("entering solarisacl_sys_acl_get_fd.\n"));
 115
 116         if (!solaris_acl_get_fd(fsp->fh->fd, &solaris_acl, &count)) {
 117                 goto done;
 118         }
 119         /*
 120          * The facl call returns both ACCESS and DEFAULT acls (as present).
 121          * The posix acl_get_fd function returns only the
 122          * access acl. So we need to filter this out here.
 123          */
 124         result = solaris_acl_to_smb_acl(solaris_acl, count,
 125                                         SMB_ACL_TYPE_ACCESS, mem_ctx);
 126         if (result == NULL) {
 127                 DEBUG(10, ("conversion solaris_acl -> smb_acl failed (%s).\n",
 128                            strerror(errno)));
 129         }
 130
 131  done:
 132         DEBUG(10, ("solarisacl_sys_acl_get_fd %s.\n",
 133                    ((result == NULL) ? "failed" : "succeeded")));
 134         SAFE_FREE(solaris_acl);
 135         return result;
 136 }
 137
 138 int solarisacl_sys_acl_set_file(vfs_handle_struct *handle,
 139                                 const struct smb_filename *smb_fname_in,
 140                                 SMB_ACL_TYPE_T type,
 141                                 SMB_ACL_T theacl)
 142 {
 143         int ret = -1;
 144         SOLARIS_ACL_T solaris_acl = NULL;
 145         int count;
 146         struct smb_filename *smb_fname = NULL;
 147
 148         smb_fname = cp_smb_filename_nostream(talloc_tos(), smb_fname_in);
 149         if (smb_fname == NULL) {
 150                 errno = ENOMEM;
 151                 goto done;
 152         }
 153
 154         DEBUG(10, ("solarisacl_sys_acl_set_file called for file '%s'\n",
 155                    smb_fname->base_name));
 156
 157         if ((type != SMB_ACL_TYPE_ACCESS) && (type != SMB_ACL_TYPE_DEFAULT)) {
 158                 errno = EINVAL;
 159                 DEBUG(10, ("invalid smb acl type given (%d).\n", type));
 160                 goto done;
 161         }
 162         DEBUGADD(10, ("setting %s acl\n",
 163                       ((type == SMB_ACL_TYPE_ACCESS) ? "access" : "default")));
 164
 165         if(!smb_acl_to_solaris_acl(theacl, &solaris_acl, &count, type)) {
 166                 DEBUG(10, ("conversion smb_acl -> solaris_acl failed (%s).\n",
 167                            strerror(errno)));
 168                 goto done;
 169         }
 170
 171         /*
 172          * if the file is a directory, there is extra work to do:
 173          * since the solaris acl call stores both the access acl and
 174          * the default acl as provided, we have to get the acl part
 175          * that has not been specified in "type" from the file first
 176          * and concatenate it with the acl provided.
 177          *
 178          * We can directly use SMB_VFS_STAT here, as if this was a
 179          * POSIX call on a symlink, we've already refused it.
 180          * For a Windows acl mapped call on a symlink, we want to follow
 181          * it.
 182          */
 183         ret = SMB_VFS_STAT(handle->conn, smb_fname);
 184         if (ret != 0) {
 185                 DEBUG(10, ("Error in stat call: %s\n", strerror(errno)));
 186                 goto done;
 187         }
 188         if (S_ISDIR(smb_fname->st.st_ex_mode)) {
 189                 SOLARIS_ACL_T other_acl = NULL;
 190                 int other_count;
 191                 SMB_ACL_TYPE_T other_type;
 192
 193                 other_type = (type == SMB_ACL_TYPE_ACCESS)
 194                         ? SMB_ACL_TYPE_DEFAULT
 195                         : SMB_ACL_TYPE_ACCESS;
 196                 DEBUGADD(10, ("getting acl from filesystem\n"));
 197                 if (!solaris_acl_get_file(smb_fname->base_name,
 198                                         &other_acl, &other_count)) {
 199                         DEBUG(10, ("error getting acl from directory\n"));
 200                         goto done;
 201                 }
 202                 DEBUG(10, ("adding %s part of fs acl to given acl\n",
 203                            ((other_type == SMB_ACL_TYPE_ACCESS)
 204                             ? "access"
 205                             : "default")));
 206                 if (!solaris_add_to_acl(&solaris_acl, &count, other_acl,
 207                                         other_count, other_type))
 208                 {
 209                         DEBUG(10, ("error adding other acl.\n"));
 210                         SAFE_FREE(other_acl);
 211                         goto done;
 212                 }
 213                 SAFE_FREE(other_acl);
 214         }
 215         else if (type != SMB_ACL_TYPE_ACCESS) {
 216                 errno = EINVAL;
 217                 goto done;
 218         }
 219
 220         if (!solaris_acl_sort(solaris_acl, count)) {
 221                 DEBUG(10, ("resulting acl is not valid!\n"));
 222                 goto done;
 223         }
 224
 225         ret = acl(smb_fname->base_name, SETACL, count, solaris_acl);
 226
 227  done:
 228         DEBUG(10, ("solarisacl_sys_acl_set_file %s.\n",
 229                    ((ret != 0) ? "failed" : "succeeded")));
 230         SAFE_FREE(solaris_acl);
 231         TALLOC_FREE(smb_fname);
 232         return ret;
 233 }
 234
 235 /*
 236  * set the access ACL on the file referred to by a fd
 237  */
 238 int solarisacl_sys_acl_set_fd(vfs_handle_struct *handle,
 239                               files_struct *fsp,
 240                               SMB_ACL_T theacl)
 241 {
 242         SOLARIS_ACL_T solaris_acl = NULL;
 243         SOLARIS_ACL_T default_acl = NULL;
 244         int count, default_count;
 245         int ret = -1;
 246
 247         DEBUG(10, ("entering solarisacl_sys_acl_set_fd\n"));
 248
 249         /*
 250          * the posix acl_set_fd call sets the access acl of the
 251          * file referred to by fd. the solaris facl-SETACL call
 252          * sets the access and default acl as provided, so we
 253          * have to retrieve the default acl of the file and
 254          * concatenate it with the access acl provided.
 255          */
 256         if (!smb_acl_to_solaris_acl(theacl, &solaris_acl, &count,
 257                                     SMB_ACL_TYPE_ACCESS))
 258         {
 259                 DEBUG(10, ("conversion smb_acl -> solaris_acl failed (%s).\n",
 260                            strerror(errno)));
 261                 goto done;
 262         }
 263         if (!solaris_acl_get_fd(fsp->fh->fd, &default_acl, &default_count)) {
 264                 DEBUG(10, ("error getting (default) acl from fd\n"));
 265                 goto done;
 266         }
 267         if (!solaris_add_to_acl(&solaris_acl, &count,
 268                                 default_acl, default_count,
 269                                 SMB_ACL_TYPE_DEFAULT))
 270         {
 271                 DEBUG(10, ("error adding default acl to solaris acl\n"));
 272                 goto done;
 273         }
 274         if (!solaris_acl_sort(solaris_acl, count)) {
 275                 DEBUG(10, ("resulting acl is not valid!\n"));
 276                 goto done;
 277         }
 278
 279         ret = facl(fsp->fh->fd, SETACL, count, solaris_acl);
 280         if (ret != 0) {
 281                 DEBUG(10, ("call of facl failed (%s).\n", strerror(errno)));
 282         }
 283
 284  done:
 285         DEBUG(10, ("solarisacl_sys_acl_set_fd %s.\n",
 286                    ((ret == 0) ? "succeeded" : "failed" )));
 287         SAFE_FREE(solaris_acl);
 288         SAFE_FREE(default_acl);
 289         return ret;
 290 }
 291
 292 /*
 293  * delete the default ACL of a directory
 294  *
 295  * This is achieved by fetching the access ACL and rewriting it
 296  * directly, via the solaris system call: the SETACL call on
 297  * directories writes both the access and the default ACL as provided.
 298  *
 299  * XXX: posix acl_delete_def_file returns an error if
 300  * the file referred to by path is not a directory.
 301  * this function does not complain but the actions
 302  * have no effect on a file other than a directory.
 303  * But sys_acl_delete_default_file is only called in
 304  * smbd/posixacls.c after having checked that the file
 305  * is a directory, anyways. So implementing the extra
 306  * check is considered unnecessary. --- Agreed? XXX
 307  */
 308 int solarisacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
 309                                 const struct smb_filename *smb_fname)
 310 {
 311         SMB_ACL_T smb_acl;
 312         int ret = -1;
 313         SOLARIS_ACL_T solaris_acl = NULL;
 314         int count;
 315
 316         DEBUG(10, ("entering solarisacl_sys_acl_delete_def_file.\n"));
 317
 318         smb_acl = solarisacl_sys_acl_get_file(handle, smb_fname->base_name,
 319                                               SMB_ACL_TYPE_ACCESS, talloc_tos());
 320         if (smb_acl == NULL) {
 321                 DEBUG(10, ("getting file acl failed!\n"));
 322                 goto done;
 323         }
 324         if (!smb_acl_to_solaris_acl(smb_acl, &solaris_acl, &count,
 325                                     SMB_ACL_TYPE_ACCESS))
 326         {
 327                 DEBUG(10, ("conversion smb_acl -> solaris_acl failed.\n"));
 328                 goto done;
 329         }
 330         if (!solaris_acl_sort(solaris_acl, count)) {
 331                 DEBUG(10, ("resulting acl is not valid!\n"));
 332                 goto done;
 333         }
 334         ret = acl(smb_fname->base_name, SETACL, count, solaris_acl);
 335         if (ret != 0) {
 336                 DEBUG(10, ("settinge file acl failed!\n"));
 337         }
 338
 339  done:
 340         DEBUG(10, ("solarisacl_sys_acl_delete_def_file %s.\n",
 341                    ((ret != 0) ? "failed" : "succeeded" )));
 342         TALLOC_FREE(smb_acl);
 343         return ret;
 344 }
 345
 346
 347 /* private functions */
 348
 349 static SOLARIS_ACL_T solaris_acl_init(int count)
 350 {
 351         SOLARIS_ACL_T solaris_acl =
 352                 (SOLARIS_ACL_T)SMB_MALLOC(sizeof(aclent_t) * count);
 353         if (solaris_acl == NULL) {
 354                 errno = ENOMEM;
 355         }
 356         return solaris_acl;
 357 }
 358
 359 /*
 360  * Convert the SMB acl to the ACCESS or DEFAULT part of a
 361  * solaris ACL, as desired.
 362  */
 363 static bool smb_acl_to_solaris_acl(SMB_ACL_T smb_acl,
 364                                    SOLARIS_ACL_T *solaris_acl, int *count,
 365                                    SMB_ACL_TYPE_T type)
 366 {
 367         bool ret = False;
 368         int i;
 369
 370         DEBUG(10, ("entering smb_acl_to_solaris_acl\n"));
 371
 372         *solaris_acl = NULL;
 373         *count = 0;
 374
 375         for (i = 0; i < smb_acl->count; i++) {
 376                 const struct smb_acl_entry *smb_entry = &(smb_acl->acl[i]);
 377                 SOLARIS_ACE_T solaris_entry;
 378
 379                 ZERO_STRUCT(solaris_entry);
 380
 381                 solaris_entry.a_type = smb_tag_to_solaris_tag(smb_entry->a_type);
 382                 if (solaris_entry.a_type == 0) {
 383                         DEBUG(10, ("smb_tag to solaris_tag failed\n"));
 384                         goto fail;
 385                 }
 386                 switch(solaris_entry.a_type) {
 387                 case USER:
 388                         DEBUG(10, ("got tag type USER with uid %u\n",
 389                                    (unsigned int)smb_entry->info.user.uid));
 390                         solaris_entry.a_id = (uid_t)smb_entry->info.user.uid;
 391                         break;
 392                 case GROUP:
 393                         DEBUG(10, ("got tag type GROUP with gid %u\n",
 394                                    (unsigned int)smb_entry->info.group.gid));
 395                         solaris_entry.a_id = (uid_t)smb_entry->info.group.gid;
 396                         break;
 397                 default:
 398                         break;
 399                 }
 400                 if (type == SMB_ACL_TYPE_DEFAULT) {
 401                         DEBUG(10, ("adding default bit to solaris ace\n"));
 402                         solaris_entry.a_type |= ACL_DEFAULT;
 403                 }
 404
 405                 solaris_entry.a_perm =
 406                         smb_perm_to_solaris_perm(smb_entry->a_perm);
 407                 DEBUG(10, ("assembled the following solaris ace:\n"));
 408                 DEBUGADD(10, (" - type: 0x%04x\n", solaris_entry.a_type));
 409                 DEBUGADD(10, (" - id: %u\n", (unsigned int)solaris_entry.a_id));
 410                 DEBUGADD(10, (" - perm: o%o\n", solaris_entry.a_perm));
 411                 if (!solaris_add_to_acl(solaris_acl, count, &solaris_entry,
 412                                         1, type))
 413                 {
 414                         DEBUG(10, ("error adding acl entry\n"));
 415                         goto fail;
 416                 }
 417                 DEBUG(10, ("count after adding: %d (i: %d)\n", *count, i));
 418                 DEBUG(10, ("test, if entry has been copied into acl:\n"));
 419                 DEBUGADD(10, (" - type: 0x%04x\n",
 420                               (*solaris_acl)[(*count)-1].a_type));
 421                 DEBUGADD(10, (" - id: %u\n",
 422                               (unsigned int)(*solaris_acl)[(*count)-1].a_id));
 423                 DEBUGADD(10, (" - perm: o%o\n",
 424                               (*solaris_acl)[(*count)-1].a_perm));
 425         }
 426
 427         ret = True;
 428         goto done;
 429
 430  fail:
 431         SAFE_FREE(*solaris_acl);
 432  done:
 433         DEBUG(10, ("smb_acl_to_solaris_acl %s\n",
 434                    ((ret == True) ? "succeeded" : "failed")));
 435         return ret;
 436 }
 437
 438 /*
 439  * convert either the access or the default part of a
 440  * soaris acl to the SMB_ACL format.
 441  */
 442 static SMB_ACL_T solaris_acl_to_smb_acl(SOLARIS_ACL_T solaris_acl, int count,
 443                                         SMB_ACL_TYPE_T type, TALLOC_CTX *mem_ctx)
 444 {
 445         SMB_ACL_T result;
 446         int i;
 447
 448         if ((result = sys_acl_init(mem_ctx)) == NULL) {
 449                 DEBUG(10, ("error allocating memory for SMB_ACL\n"));
 450                 goto fail;
 451         }
 452         for (i = 0; i < count; i++) {
 453                 SMB_ACL_ENTRY_T smb_entry;
 454                 SMB_ACL_PERM_T smb_perm;
 455
 456                 if (!_IS_OF_TYPE(solaris_acl[i], type)) {
 457                         continue;
 458                 }
 459                 result->acl = talloc_realloc(result, result->acl, struct smb_acl_entry, result->count + 1);
 460                 if (result->acl == NULL) {
 461                         DEBUG(10, ("error reallocating memory for SMB_ACL\n"));
 462                         goto fail;
 463                 }
 464                 smb_entry = &result->acl[result->count];
 465                 if (sys_acl_set_tag_type(smb_entry,
 466                                          solaris_tag_to_smb_tag(solaris_acl[i].a_type)) != 0)
 467                 {
 468                         DEBUG(10, ("invalid tag type given: 0x%04x\n",
 469                                    solaris_acl[i].a_type));
 470                         goto fail;
 471                 }
 472                 /* intentionally not checking return code here: */
 473                 sys_acl_set_qualifier(smb_entry, (void *)&solaris_acl[i].a_id);
 474                 smb_perm = solaris_perm_to_smb_perm(solaris_acl[i].a_perm);
 475                 if (sys_acl_set_permset(smb_entry, &smb_perm) != 0) {
 476                         DEBUG(10, ("invalid permset given: %d\n",
 477                                    solaris_acl[i].a_perm));
 478                         goto fail;
 479                 }
 480                 result->count += 1;
 481         }
 482         goto done;
 483
 484  fail:
 485         TALLOC_FREE(result);
 486  done:
 487         DEBUG(10, ("solaris_acl_to_smb_acl %s\n",
 488                    ((result == NULL) ? "failed" : "succeeded")));
 489         return result;
 490 }
 491
 492
 493
 494 static SOLARIS_ACL_TAG_T smb_tag_to_solaris_tag(SMB_ACL_TAG_T smb_tag)
 495 {
 496         SOLARIS_ACL_TAG_T solaris_tag = 0;
 497
 498         DEBUG(10, ("smb_tag_to_solaris_tag\n"));
 499         DEBUGADD(10, (" --> got smb tag 0x%04x\n", smb_tag));
 500
 501         switch (smb_tag) {
 502         case SMB_ACL_USER:
 503                 solaris_tag = USER;
 504                 break;
 505         case SMB_ACL_USER_OBJ:
 506                 solaris_tag = USER_OBJ;
 507                 break;
 508         case SMB_ACL_GROUP:
 509                 solaris_tag = GROUP;
 510                 break;
 511         case SMB_ACL_GROUP_OBJ:
 512                 solaris_tag = GROUP_OBJ;
 513                 break;
 514         case SMB_ACL_OTHER:
 515                 solaris_tag = OTHER_OBJ;
 516                 break;
 517         case SMB_ACL_MASK:
 518                 solaris_tag = CLASS_OBJ;
 519                 break;
 520         default:
 521                 DEBUGADD(10, (" !!! unknown smb tag type 0x%04x\n", smb_tag));
 522                 break;
 523         }
 524
 525         DEBUGADD(10, (" --> determined solaris tag 0x%04x\n", solaris_tag));
 526
 527         return solaris_tag;
 528 }
 529
 530 static SMB_ACL_TAG_T solaris_tag_to_smb_tag(SOLARIS_ACL_TAG_T solaris_tag)
 531 {
 532         SMB_ACL_TAG_T smb_tag = 0;
 533
 534         DEBUG(10, ("solaris_tag_to_smb_tag:\n"));
 535         DEBUGADD(10, (" --> got solaris tag 0x%04x\n", solaris_tag));
 536
 537         solaris_tag &= ~ACL_DEFAULT;
 538
 539         switch (solaris_tag) {
 540         case USER:
 541                 smb_tag = SMB_ACL_USER;
 542                 break;
 543         case USER_OBJ:
 544                 smb_tag = SMB_ACL_USER_OBJ;
 545                 break;
 546         case GROUP:
 547                 smb_tag = SMB_ACL_GROUP;
 548                 break;
 549         case GROUP_OBJ:
 550                 smb_tag = SMB_ACL_GROUP_OBJ;
 551                 break;
 552         case OTHER_OBJ:
 553                 smb_tag = SMB_ACL_OTHER;
 554                 break;
 555         case CLASS_OBJ:
 556                 smb_tag = SMB_ACL_MASK;
 557                 break;
 558         default:
 559                 DEBUGADD(10, (" !!! unknown solaris tag type: 0x%04x\n",
 560                                         solaris_tag));
 561                 break;
 562         }
 563
 564         DEBUGADD(10, (" --> determined smb tag 0x%04x\n", smb_tag));
 565
 566         return smb_tag;
 567 }
 568
 569
 570 static SMB_ACL_PERM_T solaris_perm_to_smb_perm(const SOLARIS_PERM_T perm)
 571 {
 572         SMB_ACL_PERM_T smb_perm = 0;
 573         smb_perm |= ((perm & SMB_ACL_READ) ? SMB_ACL_READ : 0);
 574         smb_perm |= ((perm & SMB_ACL_WRITE) ? SMB_ACL_WRITE : 0);
 575         smb_perm |= ((perm & SMB_ACL_EXECUTE) ? SMB_ACL_EXECUTE : 0);
 576         return smb_perm;
 577 }
 578
 579
 580 static SOLARIS_PERM_T smb_perm_to_solaris_perm(const SMB_ACL_PERM_T perm)
 581 {
 582         SOLARIS_PERM_T solaris_perm = 0;
 583         solaris_perm |= ((perm & SMB_ACL_READ) ? SMB_ACL_READ : 0);
 584         solaris_perm |= ((perm & SMB_ACL_WRITE) ? SMB_ACL_WRITE : 0);
 585         solaris_perm |= ((perm & SMB_ACL_EXECUTE) ? SMB_ACL_EXECUTE : 0);
 586         return solaris_perm;
 587 }
 588
 589
 590 static bool solaris_acl_get_file(const char *name, SOLARIS_ACL_T *solaris_acl,
 591                                  int *count)
 592 {
 593         bool result = False;
 594
 595         DEBUG(10, ("solaris_acl_get_file called for file '%s'\n", name));
 596
 597         /*
 598          * The original code tries some INITIAL_ACL_SIZE
 599          * and only did the GETACLCNT call upon failure
 600          * (for performance reasons).
 601          * For the sake of simplicity, I skip this for now.
 602          */
 603         *count = acl(name, GETACLCNT, 0, NULL);
 604         if (*count < 0) {
 605                 DEBUG(10, ("acl GETACLCNT failed: %s\n", strerror(errno)));
 606                 goto done;
 607         }
 608         *solaris_acl = solaris_acl_init(*count);
 609         if (*solaris_acl == NULL) {
 610                 DEBUG(10, ("error allocating memory for solaris acl...\n"));
 611                 goto done;
 612         }
 613         *count = acl(name, GETACL, *count, *solaris_acl);
 614         if (*count < 0) {
 615                 DEBUG(10, ("acl GETACL failed: %s\n", strerror(errno)));
 616                 goto done;
 617         }
 618         result = True;
 619
 620  done:
 621         DEBUG(10, ("solaris_acl_get_file %s.\n",
 622                    ((result == True) ? "succeeded" : "failed" )));
 623         return result;
 624 }
 625
 626
 627 static bool solaris_acl_get_fd(int fd, SOLARIS_ACL_T *solaris_acl, int *count)
 628 {
 629         bool ret = False;
 630
 631         DEBUG(10, ("entering solaris_acl_get_fd\n"));
 632
 633         /*
 634          * see solaris_acl_get_file for comment about omission
 635          * of INITIAL_ACL_SIZE...
 636          */
 637         *count = facl(fd, GETACLCNT, 0, NULL);
 638         if (*count < 0) {
 639                 DEBUG(10, ("facl GETACLCNT failed: %s\n", strerror(errno)));
 640                 goto done;
 641         }
 642         *solaris_acl = solaris_acl_init(*count);
 643         if (*solaris_acl == NULL) {
 644                 DEBUG(10, ("error allocating memory for solaris acl...\n"));
 645                 goto done;
 646         }
 647         *count = facl(fd, GETACL, *count, *solaris_acl);
 648         if (*count < 0) {
 649                 DEBUG(10, ("facl GETACL failed: %s\n", strerror(errno)));
 650                 goto done;
 651         }
 652         ret = True;
 653
 654  done:
 655         DEBUG(10, ("solaris_acl_get_fd %s\n",
 656                    ((ret == True) ? "succeeded" : "failed")));
 657         return ret;
 658 }
 659
 660
 661
 662 /*
 663  * Add entries to a solaris ACL.
 664  *
 665  * Entries are directly added to the solarisacl parameter.
 666  * if memory allocation fails, this may result in solarisacl
 667  * being NULL. if the resulting acl is to be checked and is
 668  * not valid, it is kept in solarisacl but False is returned.
 669  *
 670  * The type of ACEs (access/default) to be added to the ACL can
 671  * be selected via the type parameter.
 672  * I use the SMB_ACL_TYPE_T type here. Since SMB_ACL_TYPE_ACCESS
 673  * is defined as "0", this means that one can only add either
 674  * access or default ACEs, not both at the same time. If it
 675  * should become necessary to add all of an ACL, one would have
 676  * to replace this parameter by another type.
 677  */
 678 static bool solaris_add_to_acl(SOLARIS_ACL_T *solaris_acl, int *count,
 679                                SOLARIS_ACL_T add_acl, int add_count,
 680                                SMB_ACL_TYPE_T type)
 681 {
 682         int i;
 683
 684         if ((type != SMB_ACL_TYPE_ACCESS) && (type != SMB_ACL_TYPE_DEFAULT))
 685         {
 686                 DEBUG(10, ("invalid acl type given: %d\n", type));
 687                 errno = EINVAL;
 688                 return False;
 689         }
 690         for (i = 0; i < add_count; i++) {
 691                 if (!_IS_OF_TYPE(add_acl[i], type)) {
 692                         continue;
 693                 }
 694                 ADD_TO_ARRAY(NULL, SOLARIS_ACE_T, add_acl[i],
 695                              solaris_acl, count);
 696                 if (solaris_acl == NULL) {
 697                         DEBUG(10, ("error enlarging acl.\n"));
 698                         errno = ENOMEM;
 699                         return False;
 700                 }
 701         }
 702         return True;
 703 }
 704
 705
 706 /*
 707  * sort the ACL and check it for validity
 708  *
 709  * [original comment from lib/sysacls.c:]
 710  *
 711  * if it's a minimal ACL with only 4 entries then we
 712  * need to recalculate the mask permissions to make
 713  * sure that they are the same as the GROUP_OBJ
 714  * permissions as required by the UnixWare acl() system call.
 715  *
 716  * (note: since POSIX allows minimal ACLs which only contain
 717  * 3 entries - ie there is no mask entry - we should, in theory,
 718  * check for this and add a mask entry if necessary - however
 719  * we "know" that the caller of this interface always specifies
 720  * a mask, so in practice "this never happens" (tm) - if it *does*
 721  * happen aclsort() will fail and return an error and someone will
 722  * have to fix it...)
 723  */
 724 static bool solaris_acl_sort(SOLARIS_ACL_T solaris_acl, int count)
 725 {
 726         int fixmask = (count <= 4);
 727
 728         if (aclsort(count, fixmask, solaris_acl) != 0) {
 729                 errno = EINVAL;
 730                 return False;
 731         }
 732         return True;
 733 }
 734
 735 #if 0
 736 /*
 737  * acl check function:
 738  *   unused at the moment but could be used to get more
 739  *   concrete error messages for debugging...
 740  *   (acl sort just says that the acl is invalid...)
 741  */
 742 static bool solaris_acl_check(SOLARIS_ACL_T solaris_acl, int count)
 743 {
 744         int check_rc;
 745         int check_which;
 746
 747         check_rc = aclcheck(solaris_acl, count, &check_which);
 748         if (check_rc != 0) {
 749                 DEBUG(10, ("acl is not valid:\n"));
 750                 DEBUGADD(10, (" - return code: %d\n", check_rc));
 751                 DEBUGADD(10, (" - which: %d\n", check_which));
 752                 if (check_which != -1) {
 753                         DEBUGADD(10, (" - invalid entry:\n"));
 754                         DEBUGADD(10, ("   * type: %d:\n",
 755                                       solaris_acl[check_which].a_type));
 756                         DEBUGADD(10, ("   * id: %d\n",
 757                                       solaris_acl[check_which].a_id));
 758                         DEBUGADD(10, ("   * perm: 0o%o\n",
 759                                       solaris_acl[check_which].a_perm));
 760                 }
 761                 return False;
 762         }
 763         return True;
 764 }
 765 #endif
 766
 767 static struct vfs_fn_pointers solarisacl_fns = {
 768         .sys_acl_get_file_fn = solarisacl_sys_acl_get_file,
 769         .sys_acl_get_fd_fn = solarisacl_sys_acl_get_fd,
 770         .sys_acl_blob_get_file_fn = posix_sys_acl_blob_get_file,
 771         .sys_acl_blob_get_fd_fn = posix_sys_acl_blob_get_fd,
 772         .sys_acl_set_file_fn = solarisacl_sys_acl_set_file,
 773         .sys_acl_set_fd_fn = solarisacl_sys_acl_set_fd,
 774         .sys_acl_delete_def_file_fn = solarisacl_sys_acl_delete_def_file,
 775 };
 776
 777 static_decl_vfs;
 778 NTSTATUS vfs_solarisacl_init(TALLOC_CTX *ctx)
 779 {
 780         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "solarisacl",
 781                                 &solarisacl_fns);
 782 }
 783
 784 /* ENTE */