Utilities/cmlibarchive/libarchive/archive_disk_acl_sunos.c

   1 /*-
   2  * Copyright (c) 2017 Martin Matuska
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
  15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  17  * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
  18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "archive_platform.h"
  27
  28 #if ARCHIVE_ACL_SUNOS
  29
  30 #ifdef HAVE_ERRNO_H
  31 #include <errno.h>
  32 #endif
  33 #ifdef HAVE_FCNTL_H
  34 #include <fcntl.h>
  35 #endif
  36 #ifdef HAVE_SYS_TYPES_H
  37 #include <sys/types.h>
  38 #endif
  39 #ifdef HAVE_SYS_ACL_H
  40 #define _ACL_PRIVATE /* For debugging */
  41 #include <sys/acl.h>
  42 #endif
  43
  44 #include "archive_entry.h"
  45 #include "archive_private.h"
  46 #include "archive_read_disk_private.h"
  47 #include "archive_write_disk_private.h"
  48
  49 typedef struct {
  50         const int a_perm;       /* Libarchive permission or flag */
  51         const int p_perm;       /* Platform permission or flag */
  52 } acl_perm_map_t;
  53
  54 static const acl_perm_map_t acl_posix_perm_map[] = {
  55         {ARCHIVE_ENTRY_ACL_EXECUTE, S_IXOTH },
  56         {ARCHIVE_ENTRY_ACL_WRITE, S_IWOTH },
  57         {ARCHIVE_ENTRY_ACL_READ, S_IROTH }
  58 };
  59
  60 static const int acl_posix_perm_map_size =
  61     (int)(sizeof(acl_posix_perm_map)/sizeof(acl_posix_perm_map[0]));
  62
  63 #if ARCHIVE_ACL_SUNOS_NFS4
  64 static const acl_perm_map_t acl_nfs4_perm_map[] = {
  65         {ARCHIVE_ENTRY_ACL_EXECUTE, ACE_EXECUTE},
  66         {ARCHIVE_ENTRY_ACL_READ_DATA, ACE_READ_DATA},
  67         {ARCHIVE_ENTRY_ACL_LIST_DIRECTORY, ACE_LIST_DIRECTORY},
  68         {ARCHIVE_ENTRY_ACL_WRITE_DATA, ACE_WRITE_DATA},
  69         {ARCHIVE_ENTRY_ACL_ADD_FILE, ACE_ADD_FILE},
  70         {ARCHIVE_ENTRY_ACL_APPEND_DATA, ACE_APPEND_DATA},
  71         {ARCHIVE_ENTRY_ACL_ADD_SUBDIRECTORY, ACE_ADD_SUBDIRECTORY},
  72         {ARCHIVE_ENTRY_ACL_READ_NAMED_ATTRS, ACE_READ_NAMED_ATTRS},
  73         {ARCHIVE_ENTRY_ACL_WRITE_NAMED_ATTRS, ACE_WRITE_NAMED_ATTRS},
  74         {ARCHIVE_ENTRY_ACL_DELETE_CHILD, ACE_DELETE_CHILD},
  75         {ARCHIVE_ENTRY_ACL_READ_ATTRIBUTES, ACE_READ_ATTRIBUTES},
  76         {ARCHIVE_ENTRY_ACL_WRITE_ATTRIBUTES, ACE_WRITE_ATTRIBUTES},
  77         {ARCHIVE_ENTRY_ACL_DELETE, ACE_DELETE},
  78         {ARCHIVE_ENTRY_ACL_READ_ACL, ACE_READ_ACL},
  79         {ARCHIVE_ENTRY_ACL_WRITE_ACL, ACE_WRITE_ACL},
  80         {ARCHIVE_ENTRY_ACL_WRITE_OWNER, ACE_WRITE_OWNER},
  81         {ARCHIVE_ENTRY_ACL_SYNCHRONIZE, ACE_SYNCHRONIZE}
  82 };
  83
  84 static const int acl_nfs4_perm_map_size =
  85     (int)(sizeof(acl_nfs4_perm_map)/sizeof(acl_nfs4_perm_map[0]));
  86
  87 static const acl_perm_map_t acl_nfs4_flag_map[] = {
  88         {ARCHIVE_ENTRY_ACL_ENTRY_FILE_INHERIT, ACE_FILE_INHERIT_ACE},
  89         {ARCHIVE_ENTRY_ACL_ENTRY_DIRECTORY_INHERIT, ACE_DIRECTORY_INHERIT_ACE},
  90         {ARCHIVE_ENTRY_ACL_ENTRY_NO_PROPAGATE_INHERIT, ACE_NO_PROPAGATE_INHERIT_ACE},
  91         {ARCHIVE_ENTRY_ACL_ENTRY_INHERIT_ONLY, ACE_INHERIT_ONLY_ACE},
  92         {ARCHIVE_ENTRY_ACL_ENTRY_SUCCESSFUL_ACCESS, ACE_SUCCESSFUL_ACCESS_ACE_FLAG},
  93         {ARCHIVE_ENTRY_ACL_ENTRY_FAILED_ACCESS, ACE_FAILED_ACCESS_ACE_FLAG},
  94 #ifdef ACE_INHERITED_ACE
  95         {ARCHIVE_ENTRY_ACL_ENTRY_INHERITED, ACE_INHERITED_ACE}
  96 #endif
  97 };
  98
  99 const int acl_nfs4_flag_map_size =
 100     (int)(sizeof(acl_nfs4_flag_map)/sizeof(acl_nfs4_flag_map[0]));
 101
 102 #endif /* ARCHIVE_ACL_SUNOS_NFS4 */
 103
 104 static void *
 105 sunacl_get(int cmd, int *aclcnt, int fd, const char *path)
 106 {
 107         int cnt, cntcmd;
 108         size_t size;
 109         void *aclp;
 110
 111         if (cmd == GETACL) {
 112                 cntcmd = GETACLCNT;
 113                 size = sizeof(aclent_t);
 114         }
 115 #if ARCHIVE_ACL_SUNOS_NFS4
 116         else if (cmd == ACE_GETACL) {
 117                 cntcmd = ACE_GETACLCNT;
 118                 size = sizeof(ace_t);
 119         }
 120 #endif
 121         else {
 122                 errno = EINVAL;
 123                 *aclcnt = -1;
 124                 return (NULL);
 125         }
 126
 127         aclp = NULL;
 128         cnt = -2;
 129
 130         while (cnt == -2 || (cnt == -1 && errno == ENOSPC)) {
 131                 if (path != NULL)
 132                         cnt = acl(path, cntcmd, 0, NULL);
 133                 else
 134                         cnt = facl(fd, cntcmd, 0, NULL);
 135
 136                 if (cnt > 0) {
 137                         if (aclp == NULL)
 138                                 aclp = malloc(cnt * size);
 139                         else
 140                                 aclp = realloc(NULL, cnt * size);
 141                         if (aclp != NULL) {
 142                                 if (path != NULL)
 143                                         cnt = acl(path, cmd, cnt, aclp);
 144                                 else
 145                                         cnt = facl(fd, cmd, cnt, aclp);
 146                         }
 147                 } else {
 148                         if (aclp != NULL) {
 149                                 free(aclp);
 150                                 aclp = NULL;
 151                         }
 152                         break;
 153                 }
 154         }
 155
 156         *aclcnt = cnt;
 157         return (aclp);
 158 }
 159
 160 /*
 161  * Check if acl is trivial
 162  * This is a FreeBSD acl_is_trivial_np() implementation for Solaris
 163  */
 164 static int
 165 sun_acl_is_trivial(void *aclp, int aclcnt, mode_t mode, int is_nfs4,
 166     int is_dir, int *trivialp)
 167 {
 168 #if ARCHIVE_ACL_SUNOS_NFS4
 169         int i, p;
 170         const uint32_t rperm = ACE_READ_DATA;
 171         const uint32_t wperm = ACE_WRITE_DATA | ACE_APPEND_DATA;
 172         const uint32_t eperm = ACE_EXECUTE;
 173         const uint32_t pubset = ACE_READ_ATTRIBUTES | ACE_READ_NAMED_ATTRS |
 174             ACE_READ_ACL | ACE_SYNCHRONIZE;
 175         const uint32_t ownset = pubset | ACE_WRITE_ATTRIBUTES |
 176             ACE_WRITE_NAMED_ATTRS | ACE_WRITE_ACL | ACE_WRITE_OWNER;
 177
 178         ace_t *ace;
 179         ace_t tace[6];
 180 #endif
 181
 182         if (aclp == NULL || trivialp == NULL)
 183                 return (-1);
 184
 185         *trivialp = 0;
 186
 187         /*
 188          * POSIX.1e ACLs marked with ACL_IS_TRIVIAL are compatible with
 189          * FreeBSD acl_is_trivial_np(). On Solaris they have 4 entries,
 190          * including mask.
 191          */
 192         if (!is_nfs4) {
 193                 if (aclcnt == 4)
 194                         *trivialp = 1;
 195                 return (0);
 196         }
 197
 198 #if ARCHIVE_ACL_SUNOS_NFS4
 199         /*
 200          * Continue with checking NFSv4 ACLs
 201          *
 202          * Create list of trivial ace's to be compared
 203          */
 204
 205         /* owner@ allow pre */
 206         tace[0].a_flags = ACE_OWNER;
 207         tace[0].a_type = ACE_ACCESS_ALLOWED_ACE_TYPE;
 208         tace[0].a_access_mask = 0;
 209
 210         /* owner@ deny */
 211         tace[1].a_flags = ACE_OWNER;
 212         tace[1].a_type = ACE_ACCESS_DENIED_ACE_TYPE;
 213         tace[1].a_access_mask = 0;
 214
 215         /* group@ deny */
 216         tace[2].a_flags = ACE_GROUP | ACE_IDENTIFIER_GROUP;
 217         tace[2].a_type = ACE_ACCESS_DENIED_ACE_TYPE;
 218         tace[2].a_access_mask = 0;
 219
 220         /* owner@ allow */
 221         tace[3].a_flags = ACE_OWNER;
 222         tace[3].a_type = ACE_ACCESS_ALLOWED_ACE_TYPE;
 223         tace[3].a_access_mask = ownset;
 224
 225         /* group@ allow */
 226         tace[4].a_flags = ACE_GROUP | ACE_IDENTIFIER_GROUP;
 227         tace[4].a_type = ACE_ACCESS_ALLOWED_ACE_TYPE;
 228         tace[4].a_access_mask = pubset;
 229
 230         /* everyone@ allow */
 231         tace[5].a_flags = ACE_EVERYONE;
 232         tace[5].a_type = ACE_ACCESS_ALLOWED_ACE_TYPE;
 233         tace[5].a_access_mask = pubset;
 234
 235         /* Permissions for everyone@ */
 236         if (mode & 0004)
 237                 tace[5].a_access_mask |= rperm;
 238         if (mode & 0002)
 239                 tace[5].a_access_mask |= wperm;
 240         if (mode & 0001)
 241                 tace[5].a_access_mask |= eperm;
 242
 243         /* Permissions for group@ */
 244         if (mode & 0040)
 245                 tace[4].a_access_mask |= rperm;
 246         else if (mode & 0004)
 247                 tace[2].a_access_mask |= rperm;
 248         if (mode & 0020)
 249                 tace[4].a_access_mask |= wperm;
 250         else if (mode & 0002)
 251                 tace[2].a_access_mask |= wperm;
 252         if (mode & 0010)
 253                 tace[4].a_access_mask |= eperm;
 254         else if (mode & 0001)
 255                 tace[2].a_access_mask |= eperm;
 256
 257         /* Permissions for owner@ */
 258         if (mode & 0400) {
 259                 tace[3].a_access_mask |= rperm;
 260                 if (!(mode & 0040) && (mode & 0004))
 261                         tace[0].a_access_mask |= rperm;
 262         } else if ((mode & 0040) || (mode & 0004))
 263                 tace[1].a_access_mask |= rperm;
 264         if (mode & 0200) {
 265                 tace[3].a_access_mask |= wperm;
 266                 if (!(mode & 0020) && (mode & 0002))
 267                         tace[0].a_access_mask |= wperm;
 268         } else if ((mode & 0020) || (mode & 0002))
 269                 tace[1].a_access_mask |= wperm;
 270         if (mode & 0100) {
 271                 tace[3].a_access_mask |= eperm;
 272                 if (!(mode & 0010) && (mode & 0001))
 273                         tace[0].a_access_mask |= eperm;
 274         } else if ((mode & 0010) || (mode & 0001))
 275                 tace[1].a_access_mask |= eperm;
 276
 277         /* Check if the acl count matches */
 278         p = 3;
 279         for (i = 0; i < 3; i++) {
 280                 if (tace[i].a_access_mask != 0)
 281                         p++;
 282         }
 283         if (aclcnt != p)
 284                 return (0);
 285
 286         p = 0;
 287         for (i = 0; i < 6; i++) {
 288                 if (tace[i].a_access_mask != 0) {
 289                         ace = &((ace_t *)aclp)[p];
 290                         /*
 291                          * Illumos added ACE_DELETE_CHILD to write perms for
 292                          * directories. We have to check against that, too.
 293                          */
 294                         if (ace->a_flags != tace[i].a_flags ||
 295                             ace->a_type != tace[i].a_type ||
 296                             (ace->a_access_mask != tace[i].a_access_mask &&
 297                             (!is_dir || (tace[i].a_access_mask & wperm) == 0 ||
 298                             ace->a_access_mask !=
 299                             (tace[i].a_access_mask | ACE_DELETE_CHILD))))
 300                                 return (0);
 301                         p++;
 302                 }
 303         }
 304
 305         *trivialp = 1;
 306 #else   /* !ARCHIVE_ACL_SUNOS_NFS4 */
 307         (void)is_dir;   /* UNUSED */
 308         (void)aclp;     /* UNUSED */
 309 #endif  /* !ARCHIVE_ACL_SUNOS_NFS4 */
 310         return (0);
 311 }
 312
 313 /*
 314  * Translate Solaris POSIX.1e and NFSv4 ACLs into libarchive internal ACL
 315  */
 316 static int
 317 translate_acl(struct archive_read_disk *a,
 318     struct archive_entry *entry, void *aclp, int aclcnt,
 319     int default_entry_acl_type)
 320 {
 321         int e, i;
 322         int ae_id, ae_tag, ae_perm;
 323         int entry_acl_type;
 324         const char *ae_name;
 325         aclent_t *aclent;
 326 #if ARCHIVE_ACL_SUNOS_NFS4
 327         ace_t *ace;
 328 #endif
 329
 330         if (aclcnt <= 0)
 331                 return (ARCHIVE_OK);
 332
 333         for (e = 0; e < aclcnt; e++) {
 334                 ae_name = NULL;
 335                 ae_tag = 0;
 336                 ae_perm = 0;
 337
 338 #if ARCHIVE_ACL_SUNOS_NFS4
 339                 if (default_entry_acl_type == ARCHIVE_ENTRY_ACL_TYPE_NFS4) {
 340                         ace = &((ace_t *)aclp)[e];
 341                         ae_id = ace->a_who;
 342
 343                         switch(ace->a_type) {
 344                         case ACE_ACCESS_ALLOWED_ACE_TYPE:
 345                                 entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_ALLOW;
 346                                 break;
 347                         case ACE_ACCESS_DENIED_ACE_TYPE:
 348                                 entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_DENY;
 349                                 break;
 350                         case ACE_SYSTEM_AUDIT_ACE_TYPE:
 351                                 entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_ACCESS;
 352                                 break;
 353                         case ACE_SYSTEM_ALARM_ACE_TYPE:
 354                                 entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_ALARM;
 355                                 break;
 356                         default:
 357                                 /* Unknown entry type, skip */
 358                                 continue;
 359                         }
 360
 361                         if ((ace->a_flags & ACE_OWNER) != 0)
 362                                 ae_tag = ARCHIVE_ENTRY_ACL_USER_OBJ;
 363                         else if ((ace->a_flags & ACE_GROUP) != 0)
 364                                 ae_tag = ARCHIVE_ENTRY_ACL_GROUP_OBJ;
 365                         else if ((ace->a_flags & ACE_EVERYONE) != 0)
 366                                 ae_tag = ARCHIVE_ENTRY_ACL_EVERYONE;
 367                         else if ((ace->a_flags & ACE_IDENTIFIER_GROUP) != 0) {
 368                                 ae_tag = ARCHIVE_ENTRY_ACL_GROUP;
 369                                 ae_name = archive_read_disk_gname(&a->archive,
 370                                     ae_id);
 371                         } else {
 372                                 ae_tag = ARCHIVE_ENTRY_ACL_USER;
 373                                 ae_name = archive_read_disk_uname(&a->archive,
 374                                     ae_id);
 375                         }
 376
 377                         for (i = 0; i < acl_nfs4_flag_map_size; ++i) {
 378                                 if ((ace->a_flags &
 379                                     acl_nfs4_flag_map[i].p_perm) != 0)
 380                                         ae_perm |= acl_nfs4_flag_map[i].a_perm;
 381                         }
 382
 383                         for (i = 0; i < acl_nfs4_perm_map_size; ++i) {
 384                                 if ((ace->a_access_mask &
 385                                     acl_nfs4_perm_map[i].p_perm) != 0)
 386                                         ae_perm |= acl_nfs4_perm_map[i].a_perm;
 387                         }
 388                 } else
 389 #endif  /* ARCHIVE_ACL_SUNOS_NFS4 */
 390                 if (default_entry_acl_type == ARCHIVE_ENTRY_ACL_TYPE_ACCESS) {
 391                         aclent = &((aclent_t *)aclp)[e];
 392                         if ((aclent->a_type & ACL_DEFAULT) != 0)
 393                                 entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_DEFAULT;
 394                         else
 395                                 entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_ACCESS;
 396                         ae_id = aclent->a_id;
 397
 398                         switch(aclent->a_type) {
 399                         case DEF_USER:
 400                         case USER:
 401                                 ae_name = archive_read_disk_uname(&a->archive,
 402                                     ae_id);
 403                                 ae_tag = ARCHIVE_ENTRY_ACL_USER;
 404                                 break;
 405                         case DEF_GROUP:
 406                         case GROUP:
 407                                 ae_name = archive_read_disk_gname(&a->archive,
 408                                     ae_id);
 409                                 ae_tag = ARCHIVE_ENTRY_ACL_GROUP;
 410                                 break;
 411                         case DEF_CLASS_OBJ:
 412                         case CLASS_OBJ:
 413                                 ae_tag = ARCHIVE_ENTRY_ACL_MASK;
 414                                 break;
 415                         case DEF_USER_OBJ:
 416                         case USER_OBJ:
 417                                 ae_tag = ARCHIVE_ENTRY_ACL_USER_OBJ;
 418                                 break;
 419                         case DEF_GROUP_OBJ:
 420                         case GROUP_OBJ:
 421                                 ae_tag = ARCHIVE_ENTRY_ACL_GROUP_OBJ;
 422                                 break;
 423                         case DEF_OTHER_OBJ:
 424                         case OTHER_OBJ:
 425                                 ae_tag = ARCHIVE_ENTRY_ACL_OTHER;
 426                                 break;
 427                         default:
 428                                 /* Unknown tag type, skip */
 429                                 continue;
 430                         }
 431
 432                         for (i = 0; i < acl_posix_perm_map_size; ++i) {
 433                                 if ((aclent->a_perm &
 434                                     acl_posix_perm_map[i].p_perm) != 0)
 435                                         ae_perm |= acl_posix_perm_map[i].a_perm;
 436                         }
 437                 } else
 438                         return (ARCHIVE_WARN);
 439
 440                 archive_entry_acl_add_entry(entry, entry_acl_type,
 441                     ae_perm, ae_tag, ae_id, ae_name);
 442         }
 443         return (ARCHIVE_OK);
 444 }
 445
 446 static int
 447 set_acl(struct archive *a, int fd, const char *name,
 448     struct archive_acl *abstract_acl,
 449     int ae_requested_type, const char *tname)
 450 {
 451         aclent_t         *aclent;
 452 #if ARCHIVE_ACL_SUNOS_NFS4
 453         ace_t            *ace;
 454 #endif
 455         int              cmd, e, r;
 456         void             *aclp;
 457         int              ret;
 458         int              ae_type, ae_permset, ae_tag, ae_id;
 459         int              perm_map_size;
 460         const acl_perm_map_t    *perm_map;
 461         uid_t            ae_uid;
 462         gid_t            ae_gid;
 463         const char      *ae_name;
 464         int              entries;
 465         int              i;
 466
 467         ret = ARCHIVE_OK;
 468         entries = archive_acl_reset(abstract_acl, ae_requested_type);
 469         if (entries == 0)
 470                 return (ARCHIVE_OK);
 471
 472
 473         switch (ae_requested_type) {
 474         case ARCHIVE_ENTRY_ACL_TYPE_POSIX1E:
 475                 cmd = SETACL;
 476                 aclp = malloc(entries * sizeof(aclent_t));
 477                 break;
 478 #if ARCHIVE_ACL_SUNOS_NFS4
 479         case ARCHIVE_ENTRY_ACL_TYPE_NFS4:
 480                 cmd = ACE_SETACL;
 481                 aclp = malloc(entries * sizeof(ace_t));
 482
 483                 break;
 484 #endif
 485         default:
 486                 errno = ENOENT;
 487                 archive_set_error(a, errno, "Unsupported ACL type");
 488                 return (ARCHIVE_FAILED);
 489         }
 490
 491         if (aclp == NULL) {
 492                 archive_set_error(a, errno,
 493                     "Can't allocate memory for acl buffer");
 494                 return (ARCHIVE_FAILED);
 495         }
 496
 497         e = 0;
 498
 499         while (archive_acl_next(a, abstract_acl, ae_requested_type, &ae_type,
 500                    &ae_permset, &ae_tag, &ae_id, &ae_name) == ARCHIVE_OK) {
 501                 aclent = NULL;
 502 #if ARCHIVE_ACL_SUNOS_NFS4
 503                 ace = NULL;
 504 #endif
 505                 if (cmd == SETACL) {
 506                         aclent = &((aclent_t *)aclp)[e];
 507                         aclent->a_id = -1;
 508                         aclent->a_type = 0;
 509                         aclent->a_perm = 0;
 510                 }
 511 #if ARCHIVE_ACL_SUNOS_NFS4
 512                 else {  /* cmd == ACE_SETACL */
 513                         ace = &((ace_t *)aclp)[e];
 514                         ace->a_who = -1;
 515                         ace->a_access_mask = 0;
 516                         ace->a_flags = 0;
 517                 }
 518 #endif  /* ARCHIVE_ACL_SUNOS_NFS4 */
 519
 520                 switch (ae_tag) {
 521                 case ARCHIVE_ENTRY_ACL_USER:
 522                         ae_uid = archive_write_disk_uid(a, ae_name, ae_id);
 523                         if (aclent != NULL) {
 524                                 aclent->a_id = ae_uid;
 525                                 aclent->a_type |= USER;
 526                         }
 527 #if ARCHIVE_ACL_SUNOS_NFS4
 528                         else {
 529                                 ace->a_who = ae_uid;
 530                         }
 531 #endif
 532                         break;
 533                 case ARCHIVE_ENTRY_ACL_GROUP:
 534                         ae_gid = archive_write_disk_gid(a, ae_name, ae_id);
 535                         if (aclent != NULL) {
 536                                 aclent->a_id = ae_gid;
 537                                 aclent->a_type |= GROUP;
 538                         }
 539 #if ARCHIVE_ACL_SUNOS_NFS4
 540                         else {
 541                                 ace->a_who = ae_gid;
 542                                 ace->a_flags |= ACE_IDENTIFIER_GROUP;
 543                         }
 544 #endif
 545                         break;
 546                 case ARCHIVE_ENTRY_ACL_USER_OBJ:
 547                         if (aclent != NULL)
 548                                 aclent->a_type |= USER_OBJ;
 549 #if ARCHIVE_ACL_SUNOS_NFS4
 550                         else {
 551                                 ace->a_flags |= ACE_OWNER;
 552                         }
 553 #endif
 554                         break;
 555                 case ARCHIVE_ENTRY_ACL_GROUP_OBJ:
 556                         if (aclent != NULL)
 557                                 aclent->a_type |= GROUP_OBJ;
 558 #if ARCHIVE_ACL_SUNOS_NFS4
 559                         else {
 560                                 ace->a_flags |= ACE_GROUP;
 561                                 ace->a_flags |= ACE_IDENTIFIER_GROUP;
 562                         }
 563 #endif
 564                         break;
 565                 case ARCHIVE_ENTRY_ACL_MASK:
 566                         if (aclent != NULL)
 567                                 aclent->a_type |= CLASS_OBJ;
 568                         break;
 569                 case ARCHIVE_ENTRY_ACL_OTHER:
 570                         if (aclent != NULL)
 571                                 aclent->a_type |= OTHER_OBJ;
 572                         break;
 573 #if ARCHIVE_ACL_SUNOS_NFS4
 574                 case ARCHIVE_ENTRY_ACL_EVERYONE:
 575                         if (ace != NULL)
 576                                 ace->a_flags |= ACE_EVERYONE;
 577                         break;
 578 #endif
 579                 default:
 580                         archive_set_error(a, ARCHIVE_ERRNO_MISC,
 581                             "Unsupported ACL tag");
 582                         ret = ARCHIVE_FAILED;
 583                         goto exit_free;
 584                 }
 585
 586                 r = 0;
 587                 switch (ae_type) {
 588 #if ARCHIVE_ACL_SUNOS_NFS4
 589                 case ARCHIVE_ENTRY_ACL_TYPE_ALLOW:
 590                         if (ace != NULL)
 591                                 ace->a_type = ACE_ACCESS_ALLOWED_ACE_TYPE;
 592                         else
 593                                 r = -1;
 594                         break;
 595                 case ARCHIVE_ENTRY_ACL_TYPE_DENY:
 596                         if (ace != NULL)
 597                                 ace->a_type = ACE_ACCESS_DENIED_ACE_TYPE;
 598                         else
 599                                 r = -1;
 600                         break;
 601                 case ARCHIVE_ENTRY_ACL_TYPE_AUDIT:
 602                         if (ace != NULL)
 603                                 ace->a_type = ACE_SYSTEM_AUDIT_ACE_TYPE;
 604                         else
 605                                 r = -1;
 606                         break;
 607                 case ARCHIVE_ENTRY_ACL_TYPE_ALARM:
 608                         if (ace != NULL)
 609                                 ace->a_type = ACE_SYSTEM_ALARM_ACE_TYPE;
 610                         else
 611                                 r = -1;
 612                         break;
 613 #endif
 614                 case ARCHIVE_ENTRY_ACL_TYPE_ACCESS:
 615                         if (aclent == NULL)
 616                                 r = -1;
 617                         break;
 618                 case ARCHIVE_ENTRY_ACL_TYPE_DEFAULT:
 619                         if (aclent != NULL)
 620                                 aclent->a_type |= ACL_DEFAULT;
 621                         else
 622                                 r = -1;
 623                         break;
 624                 default:
 625                         archive_set_error(a, ARCHIVE_ERRNO_MISC,
 626                             "Unsupported ACL entry type");
 627                         ret = ARCHIVE_FAILED;
 628                         goto exit_free;
 629                 }
 630
 631                 if (r != 0) {
 632                         errno = EINVAL;
 633                         archive_set_error(a, errno,
 634                             "Failed to set ACL entry type");
 635                         ret = ARCHIVE_FAILED;
 636                         goto exit_free;
 637                 }
 638
 639 #if ARCHIVE_ACL_SUNOS_NFS4
 640                 if (ae_requested_type == ARCHIVE_ENTRY_ACL_TYPE_NFS4) {
 641                         perm_map_size = acl_nfs4_perm_map_size;
 642                         perm_map = acl_nfs4_perm_map;
 643                 } else {
 644 #endif
 645                         perm_map_size = acl_posix_perm_map_size;
 646                         perm_map = acl_posix_perm_map;
 647 #if ARCHIVE_ACL_SUNOS_NFS4
 648                 }
 649 #endif
 650                 for (i = 0; i < perm_map_size; ++i) {
 651                         if (ae_permset & perm_map[i].a_perm) {
 652 #if ARCHIVE_ACL_SUNOS_NFS4
 653                                 if (ae_requested_type ==
 654                                     ARCHIVE_ENTRY_ACL_TYPE_NFS4)
 655                                         ace->a_access_mask |=
 656                                             perm_map[i].p_perm;
 657                                 else
 658 #endif
 659                                         aclent->a_perm |= perm_map[i].p_perm;
 660                         }
 661                 }
 662
 663 #if ARCHIVE_ACL_SUNOS_NFS4
 664                 if (ae_requested_type == ARCHIVE_ENTRY_ACL_TYPE_NFS4) {
 665                         for (i = 0; i < acl_nfs4_flag_map_size; ++i) {
 666                                 if (ae_permset & acl_nfs4_flag_map[i].a_perm) {
 667                                         ace->a_flags |=
 668                                             acl_nfs4_flag_map[i].p_perm;
 669                                 }
 670                         }
 671                 }
 672 #endif
 673         e++;
 674         }
 675
 676         /* Try restoring the ACL through 'fd' if we can. */
 677         if (fd >= 0) {
 678                 if (facl(fd, cmd, entries, aclp) == 0)
 679                         ret = ARCHIVE_OK;
 680                 else {
 681                         if (errno == EOPNOTSUPP) {
 682                                 /* Filesystem doesn't support ACLs */
 683                                 ret = ARCHIVE_OK;
 684                         } else {
 685                                 archive_set_error(a, errno,
 686                                     "Failed to set acl on fd: %s", tname);
 687                                 ret = ARCHIVE_WARN;
 688                         }
 689                 }
 690         } else if (acl(name, cmd, entries, aclp) != 0) {
 691                 if (errno == EOPNOTSUPP) {
 692                         /* Filesystem doesn't support ACLs */
 693                         ret = ARCHIVE_OK;
 694                 } else {
 695                         archive_set_error(a, errno, "Failed to set acl: %s",
 696                             tname);
 697                         ret = ARCHIVE_WARN;
 698                 }
 699         }
 700 exit_free:
 701         free(aclp);
 702         return (ret);
 703 }
 704
 705 int
 706 archive_read_disk_entry_setup_acls(struct archive_read_disk *a,
 707     struct archive_entry *entry, int *fd)
 708 {
 709         const char      *accpath;
 710         void            *aclp;
 711         int             aclcnt;
 712         int             r;
 713
 714         accpath = NULL;
 715
 716         if (*fd < 0) {
 717                 accpath = archive_read_disk_entry_setup_path(a, entry, fd);
 718                 if (accpath == NULL)
 719                         return (ARCHIVE_WARN);
 720         }
 721
 722         archive_entry_acl_clear(entry);
 723
 724         aclp = NULL;
 725
 726 #if ARCHIVE_ACL_SUNOS_NFS4
 727         if (*fd >= 0)
 728                 aclp = sunacl_get(ACE_GETACL, &aclcnt, *fd, NULL);
 729         else if ((!a->follow_symlinks)
 730             && (archive_entry_filetype(entry) == AE_IFLNK))
 731                 /* We can't get the ACL of a symlink, so we assume it can't
 732                    have one. */
 733                 aclp = NULL;
 734         else
 735                 aclp = sunacl_get(ACE_GETACL, &aclcnt, 0, accpath);
 736
 737         if (aclp != NULL && sun_acl_is_trivial(aclp, aclcnt,
 738             archive_entry_mode(entry), 1, S_ISDIR(archive_entry_mode(entry)),
 739             &r) == 0 && r == 1) {
 740                 free(aclp);
 741                 aclp = NULL;
 742                 return (ARCHIVE_OK);
 743         }
 744
 745         if (aclp != NULL) {
 746                 r = translate_acl(a, entry, aclp, aclcnt,
 747                     ARCHIVE_ENTRY_ACL_TYPE_NFS4);
 748                 free(aclp);
 749                 aclp = NULL;
 750
 751                 if (r != ARCHIVE_OK) {
 752                         archive_set_error(&a->archive, errno,
 753                             "Couldn't translate NFSv4 ACLs");
 754                 }
 755                 return (r);
 756         }
 757 #endif  /* ARCHIVE_ACL_SUNOS_NFS4 */
 758
 759         /* Retrieve POSIX.1e ACLs from file. */
 760         if (*fd >= 0)
 761                 aclp = sunacl_get(GETACL, &aclcnt, *fd, NULL);
 762         else if ((!a->follow_symlinks)
 763             && (archive_entry_filetype(entry) == AE_IFLNK))
 764                 /* We can't get the ACL of a symlink, so we assume it can't
 765                    have one. */
 766                 aclp = NULL;
 767         else
 768                 aclp = sunacl_get(GETACL, &aclcnt, 0, accpath);
 769
 770         /* Ignore "trivial" ACLs that just mirror the file mode. */
 771         if (aclp != NULL && sun_acl_is_trivial(aclp, aclcnt,
 772             archive_entry_mode(entry), 0, S_ISDIR(archive_entry_mode(entry)),
 773             &r) == 0 && r == 1) {
 774                 free(aclp);
 775                 aclp = NULL;
 776         }
 777
 778         if (aclp != NULL)
 779         {
 780                 r = translate_acl(a, entry, aclp, aclcnt,
 781                     ARCHIVE_ENTRY_ACL_TYPE_ACCESS);
 782                 free(aclp);
 783                 aclp = NULL;
 784
 785                 if (r != ARCHIVE_OK) {
 786                         archive_set_error(&a->archive, errno,
 787                             "Couldn't translate access ACLs");
 788                         return (r);
 789                 }
 790         }
 791
 792         return (ARCHIVE_OK);
 793 }
 794
 795 int
 796 archive_write_disk_set_acls(struct archive *a, int fd, const char *name,
 797     struct archive_acl *abstract_acl, __LA_MODE_T mode)
 798 {
 799         int             ret = ARCHIVE_OK;
 800
 801         (void)mode;     /* UNUSED */
 802
 803         if ((archive_acl_types(abstract_acl)
 804             & ARCHIVE_ENTRY_ACL_TYPE_POSIX1E) != 0) {
 805                 /* Solaris writes POSIX.1e access and default ACLs together */
 806                 ret = set_acl(a, fd, name, abstract_acl,
 807                     ARCHIVE_ENTRY_ACL_TYPE_POSIX1E, "posix1e");
 808
 809                 /* Simultaneous POSIX.1e and NFSv4 is not supported */
 810                 return (ret);
 811         }
 812 #if ARCHIVE_ACL_SUNOS_NFS4
 813         else if ((archive_acl_types(abstract_acl) &
 814             ARCHIVE_ENTRY_ACL_TYPE_NFS4) != 0) {
 815                 ret = set_acl(a, fd, name, abstract_acl,
 816                     ARCHIVE_ENTRY_ACL_TYPE_NFS4, "nfs4");
 817         }
 818 #endif
 819         return (ret);
 820 }
 821 #endif  /* ARCHIVE_ACL_SUNOS */