source3/libsmb/libsmb_xattr.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    SMB client library implementation
   4    Copyright (C) Andrew Tridgell 1998
   5    Copyright (C) Richard Sharpe 2000, 2002
   6    Copyright (C) John Terpstra 2000
   7    Copyright (C) Tom Jansen (Ninja ISD) 2002
   8    Copyright (C) Derrell Lipman 2003-2008
   9    Copyright (C) Jeremy Allison 2007, 2008
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 3 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  23 */
  24
  25 #include "includes.h"
  26 #include "libsmb/libsmb.h"
  27 #include "libsmbclient.h"
  28 #include "libsmb_internal.h"
  29 #include "../librpc/gen_ndr/ndr_lsa.h"
  30 #include "rpc_client/rpc_client.h"
  31 #include "rpc_client/cli_lsarpc.h"
  32 #include "../libcli/security/security.h"
  33
  34 /*
  35  * Find an lsa pipe handle associated with a cli struct.
  36  */
  37 static struct rpc_pipe_client *
  38 find_lsa_pipe_hnd(struct cli_state *ipc_cli)
  39 {
  40         struct rpc_pipe_client *pipe_hnd;
  41
  42         for (pipe_hnd = ipc_cli->pipe_list;
  43              pipe_hnd;
  44              pipe_hnd = pipe_hnd->next) {
  45                 if (ndr_syntax_id_equal(&pipe_hnd->abstract_syntax,
  46                                         &ndr_table_lsarpc.syntax_id)) {
  47                         return pipe_hnd;
  48                 }
  49         }
  50         return NULL;
  51 }
  52
  53 /*
  54  * Sort ACEs according to the documentation at
  55  * http://support.microsoft.com/kb/269175, at least as far as it defines the
  56  * order.
  57  */
  58
  59 static int
  60 ace_compare(struct security_ace *ace1,
  61             struct security_ace *ace2)
  62 {
  63         bool b1;
  64         bool b2;
  65
  66         /* If the ACEs are equal, we have nothing more to do. */
  67         if (sec_ace_equal(ace1, ace2)) {
  68                 return 0;
  69         }
  70
  71         /* Inherited follow non-inherited */
  72         b1 = ((ace1->flags & SEC_ACE_FLAG_INHERITED_ACE) != 0);
  73         b2 = ((ace2->flags & SEC_ACE_FLAG_INHERITED_ACE) != 0);
  74         if (b1 != b2) {
  75                 return (b1 ? 1 : -1);
  76         }
  77
  78         /*
  79          * What shall we do with AUDITs and ALARMs?  It's undefined.  We'll
  80          * sort them after DENY and ALLOW.
  81          */
  82         b1 = (ace1->type != SEC_ACE_TYPE_ACCESS_ALLOWED &&
  83               ace1->type != SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT &&
  84               ace1->type != SEC_ACE_TYPE_ACCESS_DENIED &&
  85               ace1->type != SEC_ACE_TYPE_ACCESS_DENIED_OBJECT);
  86         b2 = (ace2->type != SEC_ACE_TYPE_ACCESS_ALLOWED &&
  87               ace2->type != SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT &&
  88               ace2->type != SEC_ACE_TYPE_ACCESS_DENIED &&
  89               ace2->type != SEC_ACE_TYPE_ACCESS_DENIED_OBJECT);
  90         if (b1 != b2) {
  91                 return (b1 ? 1 : -1);
  92         }
  93
  94         /* Allowed ACEs follow denied ACEs */
  95         b1 = (ace1->type == SEC_ACE_TYPE_ACCESS_ALLOWED ||
  96               ace1->type == SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT);
  97         b2 = (ace2->type == SEC_ACE_TYPE_ACCESS_ALLOWED ||
  98               ace2->type == SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT);
  99         if (b1 != b2) {
 100                 return (b1 ? 1 : -1);
 101         }
 102
 103         /*
 104          * ACEs applying to an entity's object follow those applying to the
 105          * entity itself
 106          */
 107         b1 = (ace1->type == SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT ||
 108               ace1->type == SEC_ACE_TYPE_ACCESS_DENIED_OBJECT);
 109         b2 = (ace2->type == SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT ||
 110               ace2->type == SEC_ACE_TYPE_ACCESS_DENIED_OBJECT);
 111         if (b1 != b2) {
 112                 return (b1 ? 1 : -1);
 113         }
 114
 115         /*
 116          * If we get this far, the ACEs are similar as far as the
 117          * characteristics we typically care about (those defined by the
 118          * referenced MS document).  We'll now sort by characteristics that
 119          * just seems reasonable.
 120          */
 121
 122         if (ace1->type != ace2->type) {
 123                 return ace2->type - ace1->type;
 124         }
 125
 126         if (dom_sid_compare(&ace1->trustee, &ace2->trustee)) {
 127                 return dom_sid_compare(&ace1->trustee, &ace2->trustee);
 128         }
 129
 130         if (ace1->flags != ace2->flags) {
 131                 return ace1->flags - ace2->flags;
 132         }
 133
 134         if (ace1->access_mask != ace2->access_mask) {
 135                 return ace1->access_mask - ace2->access_mask;
 136         }
 137
 138         if (ace1->size != ace2->size) {
 139                 return ace1->size - ace2->size;
 140         }
 141
 142         return memcmp(ace1, ace2, sizeof(struct security_ace));
 143 }
 144
 145
 146 static void
 147 sort_acl(struct security_acl *the_acl)
 148 {
 149         uint32 i;
 150         if (!the_acl) return;
 151
 152         TYPESAFE_QSORT(the_acl->aces, the_acl->num_aces, ace_compare);
 153
 154         for (i=1;i<the_acl->num_aces;) {
 155                 if (sec_ace_equal(&the_acl->aces[i-1], &the_acl->aces[i])) {
 156                         int j;
 157                         for (j=i; j<the_acl->num_aces-1; j++) {
 158                                 the_acl->aces[j] = the_acl->aces[j+1];
 159                         }
 160                         the_acl->num_aces--;
 161                 } else {
 162                         i++;
 163                 }
 164         }
 165 }
 166
 167 /* convert a SID to a string, either numeric or username/group */
 168 static void
 169 convert_sid_to_string(struct cli_state *ipc_cli,
 170                       struct policy_handle *pol,
 171                       fstring str,
 172                       bool numeric,
 173                       struct dom_sid *sid)
 174 {
 175         char **domains = NULL;
 176         char **names = NULL;
 177         enum lsa_SidType *types = NULL;
 178         struct rpc_pipe_client *pipe_hnd = find_lsa_pipe_hnd(ipc_cli);
 179         TALLOC_CTX *ctx;
 180
 181         sid_to_fstring(str, sid);
 182
 183         if (numeric) {
 184                 return;     /* no lookup desired */
 185         }
 186
 187         if (!pipe_hnd) {
 188                 return;
 189         }
 190
 191         /* Ask LSA to convert the sid to a name */
 192
 193         ctx = talloc_stackframe();
 194
 195         if (!NT_STATUS_IS_OK(rpccli_lsa_lookup_sids(pipe_hnd, ctx,
 196                                                     pol, 1, sid, &domains,
 197                                                     &names, &types)) ||
 198             !domains || !domains[0] || !names || !names[0]) {
 199                 TALLOC_FREE(ctx);
 200                 return;
 201         }
 202
 203         /* Converted OK */
 204
 205         slprintf(str, sizeof(fstring) - 1, "%s%s%s",
 206                  domains[0], lp_winbind_separator(),
 207                  names[0]);
 208
 209         TALLOC_FREE(ctx);
 210 }
 211
 212 /* convert a string to a SID, either numeric or username/group */
 213 static bool
 214 convert_string_to_sid(struct cli_state *ipc_cli,
 215                       struct policy_handle *pol,
 216                       bool numeric,
 217                       struct dom_sid *sid,
 218                       const char *str)
 219 {
 220         enum lsa_SidType *types = NULL;
 221         struct dom_sid *sids = NULL;
 222         bool result = True;
 223         TALLOC_CTX *ctx = NULL;
 224         struct rpc_pipe_client *pipe_hnd = find_lsa_pipe_hnd(ipc_cli);
 225
 226         if (!pipe_hnd) {
 227                 return False;
 228         }
 229
 230         if (numeric) {
 231                 if (strncmp(str, "S-", 2) == 0) {
 232                         return string_to_sid(sid, str);
 233                 }
 234
 235                 result = False;
 236                 goto done;
 237         }
 238
 239         ctx = talloc_stackframe();
 240         if (!NT_STATUS_IS_OK(rpccli_lsa_lookup_names(pipe_hnd, ctx,
 241                                                      pol, 1, &str,
 242                                                      NULL, 1, &sids,
 243                                                      &types))) {
 244                 result = False;
 245                 goto done;
 246         }
 247
 248         sid_copy(sid, &sids[0]);
 249 done:
 250         TALLOC_FREE(ctx);
 251         return result;
 252 }
 253
 254
 255 /* parse an struct security_ace in the same format as print_ace() */
 256 static bool
 257 parse_ace(struct cli_state *ipc_cli,
 258           struct policy_handle *pol,
 259           struct security_ace *ace,
 260           bool numeric,
 261           char *str)
 262 {
 263         char *p;
 264         const char *cp;
 265         char *tok;
 266         unsigned int atype;
 267         unsigned int aflags;
 268         unsigned int amask;
 269         struct dom_sid sid;
 270         uint32_t mask;
 271         const struct perm_value *v;
 272         struct perm_value {
 273                 const char perm[7];
 274                 uint32 mask;
 275         };
 276         TALLOC_CTX *frame = talloc_stackframe();
 277
 278         /* These values discovered by inspection */
 279         static const struct perm_value special_values[] = {
 280                 { "R", 0x00120089 },
 281                 { "W", 0x00120116 },
 282                 { "X", 0x001200a0 },
 283                 { "D", 0x00010000 },
 284                 { "P", 0x00040000 },
 285                 { "O", 0x00080000 },
 286                 { "", 0 },
 287         };
 288
 289         static const struct perm_value standard_values[] = {
 290                 { "READ",   0x001200a9 },
 291                 { "CHANGE", 0x001301bf },
 292                 { "FULL",   0x001f01ff },
 293                 { "", 0 },
 294         };
 295
 296         ZERO_STRUCTP(ace);
 297         p = strchr_m(str,':');
 298         if (!p) {
 299                 TALLOC_FREE(frame);
 300                 return False;
 301         }
 302         *p = '\0';
 303         p++;
 304         /* Try to parse numeric form */
 305
 306         if (sscanf(p, "%i/%i/%i", &atype, &aflags, &amask) == 3 &&
 307             convert_string_to_sid(ipc_cli, pol, numeric, &sid, str)) {
 308                 goto done;
 309         }
 310
 311         /* Try to parse text form */
 312
 313         if (!convert_string_to_sid(ipc_cli, pol, numeric, &sid, str)) {
 314                 TALLOC_FREE(frame);
 315                 return false;
 316         }
 317
 318         cp = p;
 319         if (!next_token_talloc(frame, &cp, &tok, "/")) {
 320                 TALLOC_FREE(frame);
 321                 return false;
 322         }
 323
 324         if (strncasecmp_m(tok, "ALLOWED", strlen("ALLOWED")) == 0) {
 325                 atype = SEC_ACE_TYPE_ACCESS_ALLOWED;
 326         } else if (strncasecmp_m(tok, "DENIED", strlen("DENIED")) == 0) {
 327                 atype = SEC_ACE_TYPE_ACCESS_DENIED;
 328         } else {
 329                 TALLOC_FREE(frame);
 330                 return false;
 331         }
 332
 333         /* Only numeric form accepted for flags at present */
 334
 335         if (!(next_token_talloc(frame, &cp, &tok, "/") &&
 336               sscanf(tok, "%i", &aflags))) {
 337                 TALLOC_FREE(frame);
 338                 return false;
 339         }
 340
 341         if (!next_token_talloc(frame, &cp, &tok, "/")) {
 342                 TALLOC_FREE(frame);
 343                 return false;
 344         }
 345
 346         if (strncmp(tok, "0x", 2) == 0) {
 347                 if (sscanf(tok, "%i", &amask) != 1) {
 348                         TALLOC_FREE(frame);
 349                         return false;
 350                 }
 351                 goto done;
 352         }
 353
 354         for (v = standard_values; v->perm; v++) {
 355                 if (strcmp(tok, v->perm) == 0) {
 356                         amask = v->mask;
 357                         goto done;
 358                 }
 359         }
 360
 361         p = tok;
 362
 363         while(*p) {
 364                 bool found = False;
 365
 366                 for (v = special_values; v->perm; v++) {
 367                         if (v->perm[0] == *p) {
 368                                 amask |= v->mask;
 369                                 found = True;
 370                         }
 371                 }
 372
 373                 if (!found) {
 374                         TALLOC_FREE(frame);
 375                         return false;
 376                 }
 377                 p++;
 378         }
 379
 380         if (*p) {
 381                 TALLOC_FREE(frame);
 382                 return false;
 383         }
 384
 385 done:
 386         mask = amask;
 387         init_sec_ace(ace, &sid, atype, mask, aflags);
 388         TALLOC_FREE(frame);
 389         return true;
 390 }
 391
 392 /* add an struct security_ace to a list of struct security_aces in a struct security_acl */
 393 static bool
 394 add_ace(struct security_acl **the_acl,
 395         struct security_ace *ace,
 396         TALLOC_CTX *ctx)
 397 {
 398         struct security_acl *newacl;
 399         struct security_ace *aces;
 400
 401         if (! *the_acl) {
 402                 (*the_acl) = make_sec_acl(ctx, 3, 1, ace);
 403                 return True;
 404         }
 405
 406         if ((aces = SMB_CALLOC_ARRAY(struct security_ace,
 407                                      1+(*the_acl)->num_aces)) == NULL) {
 408                 return False;
 409         }
 410         memcpy(aces, (*the_acl)->aces, (*the_acl)->num_aces * sizeof(struct security_ace));
 411         memcpy(aces+(*the_acl)->num_aces, ace, sizeof(struct security_ace));
 412         newacl = make_sec_acl(ctx, (*the_acl)->revision,
 413                               1+(*the_acl)->num_aces, aces);
 414         SAFE_FREE(aces);
 415         (*the_acl) = newacl;
 416         return True;
 417 }
 418
 419
 420 /* parse a ascii version of a security descriptor */
 421 static struct security_descriptor *
 422 sec_desc_parse(TALLOC_CTX *ctx,
 423                struct cli_state *ipc_cli,
 424                struct policy_handle *pol,
 425                bool numeric,
 426                const char *str)
 427 {
 428         const char *p = str;
 429         char *tok;
 430         struct security_descriptor *ret = NULL;
 431         size_t sd_size;
 432         struct dom_sid *group_sid=NULL;
 433         struct dom_sid *owner_sid=NULL;
 434         struct security_acl *dacl=NULL;
 435         int revision=1;
 436
 437         while (next_token_talloc(ctx, &p, &tok, "\t,\r\n")) {
 438
 439                 if (strncasecmp_m(tok,"REVISION:", 9) == 0) {
 440                         revision = strtol(tok+9, NULL, 16);
 441                         continue;
 442                 }
 443
 444                 if (strncasecmp_m(tok,"OWNER:", 6) == 0) {
 445                         if (owner_sid) {
 446                                 DEBUG(5,("OWNER specified more than once!\n"));
 447                                 goto done;
 448                         }
 449                         owner_sid = SMB_CALLOC_ARRAY(struct dom_sid, 1);
 450                         if (!owner_sid ||
 451                             !convert_string_to_sid(ipc_cli, pol,
 452                                                    numeric,
 453                                                    owner_sid, tok+6)) {
 454                                 DEBUG(5, ("Failed to parse owner sid\n"));
 455                                 goto done;
 456                         }
 457                         continue;
 458                 }
 459
 460                 if (strncasecmp_m(tok,"OWNER+:", 7) == 0) {
 461                         if (owner_sid) {
 462                                 DEBUG(5,("OWNER specified more than once!\n"));
 463                                 goto done;
 464                         }
 465                         owner_sid = SMB_CALLOC_ARRAY(struct dom_sid, 1);
 466                         if (!owner_sid ||
 467                             !convert_string_to_sid(ipc_cli, pol,
 468                                                    False,
 469                                                    owner_sid, tok+7)) {
 470                                 DEBUG(5, ("Failed to parse owner sid\n"));
 471                                 goto done;
 472                         }
 473                         continue;
 474                 }
 475
 476                 if (strncasecmp_m(tok,"GROUP:", 6) == 0) {
 477                         if (group_sid) {
 478                                 DEBUG(5,("GROUP specified more than once!\n"));
 479                                 goto done;
 480                         }
 481                         group_sid = SMB_CALLOC_ARRAY(struct dom_sid, 1);
 482                         if (!group_sid ||
 483                             !convert_string_to_sid(ipc_cli, pol,
 484                                                    numeric,
 485                                                    group_sid, tok+6)) {
 486                                 DEBUG(5, ("Failed to parse group sid\n"));
 487                                 goto done;
 488                         }
 489                         continue;
 490                 }
 491
 492                 if (strncasecmp_m(tok,"GROUP+:", 7) == 0) {
 493                         if (group_sid) {
 494                                 DEBUG(5,("GROUP specified more than once!\n"));
 495                                 goto done;
 496                         }
 497                         group_sid = SMB_CALLOC_ARRAY(struct dom_sid, 1);
 498                         if (!group_sid ||
 499                             !convert_string_to_sid(ipc_cli, pol,
 500                                                    False,
 501                                                    group_sid, tok+6)) {
 502                                 DEBUG(5, ("Failed to parse group sid\n"));
 503                                 goto done;
 504                         }
 505                         continue;
 506                 }
 507
 508                 if (strncasecmp_m(tok,"ACL:", 4) == 0) {
 509                         struct security_ace ace;
 510                         if (!parse_ace(ipc_cli, pol, &ace, numeric, tok+4)) {
 511                                 DEBUG(5, ("Failed to parse ACL %s\n", tok));
 512                                 goto done;
 513                         }
 514                         if(!add_ace(&dacl, &ace, ctx)) {
 515                                 DEBUG(5, ("Failed to add ACL %s\n", tok));
 516                                 goto done;
 517                         }
 518                         continue;
 519                 }
 520
 521                 if (strncasecmp_m(tok,"ACL+:", 5) == 0) {
 522                         struct security_ace ace;
 523                         if (!parse_ace(ipc_cli, pol, &ace, False, tok+5)) {
 524                                 DEBUG(5, ("Failed to parse ACL %s\n", tok));
 525                                 goto done;
 526                         }
 527                         if(!add_ace(&dacl, &ace, ctx)) {
 528                                 DEBUG(5, ("Failed to add ACL %s\n", tok));
 529                                 goto done;
 530                         }
 531                         continue;
 532                 }
 533
 534                 DEBUG(5, ("Failed to parse security descriptor\n"));
 535                 goto done;
 536         }
 537
 538         ret = make_sec_desc(ctx, revision, SEC_DESC_SELF_RELATIVE,
 539                             owner_sid, group_sid, NULL, dacl, &sd_size);
 540
 541 done:
 542         SAFE_FREE(group_sid);
 543         SAFE_FREE(owner_sid);
 544         return ret;
 545 }
 546
 547
 548 /* Obtain the current dos attributes */
 549 static DOS_ATTR_DESC *
 550 dos_attr_query(SMBCCTX *context,
 551                TALLOC_CTX *ctx,
 552                const char *filename,
 553                SMBCSRV *srv)
 554 {
 555         struct timespec create_time_ts;
 556         struct timespec write_time_ts;
 557         struct timespec access_time_ts;
 558         struct timespec change_time_ts;
 559         SMB_OFF_T size = 0;
 560         uint16 mode = 0;
 561         SMB_INO_T inode = 0;
 562         DOS_ATTR_DESC *ret;
 563
 564         ret = talloc(ctx, DOS_ATTR_DESC);
 565         if (!ret) {
 566                 errno = ENOMEM;
 567                 return NULL;
 568         }
 569
 570         /* Obtain the DOS attributes */
 571         if (!SMBC_getatr(context, srv, filename,
 572                          &mode, &size,
 573                          &create_time_ts,
 574                          &access_time_ts,
 575                          &write_time_ts,
 576                          &change_time_ts,
 577                          &inode)) {
 578                 errno = SMBC_errno(context, srv->cli);
 579                 DEBUG(5, ("dos_attr_query Failed to query old attributes\n"));
 580                 return NULL;
 581         }
 582
 583         ret->mode = mode;
 584         ret->size = size;
 585         ret->create_time = convert_timespec_to_time_t(create_time_ts);
 586         ret->access_time = convert_timespec_to_time_t(access_time_ts);
 587         ret->write_time = convert_timespec_to_time_t(write_time_ts);
 588         ret->change_time = convert_timespec_to_time_t(change_time_ts);
 589         ret->inode = inode;
 590
 591         return ret;
 592 }
 593
 594
 595 /* parse a ascii version of a security descriptor */
 596 static void
 597 dos_attr_parse(SMBCCTX *context,
 598                DOS_ATTR_DESC *dad,
 599                SMBCSRV *srv,
 600                char *str)
 601 {
 602         int n;
 603         const char *p = str;
 604         char *tok = NULL;
 605         TALLOC_CTX *frame = NULL;
 606         struct {
 607                 const char * create_time_attr;
 608                 const char * access_time_attr;
 609                 const char * write_time_attr;
 610                 const char * change_time_attr;
 611         } attr_strings;
 612
 613         /* Determine whether to use old-style or new-style attribute names */
 614         if (context->internal->full_time_names) {
 615                 /* new-style names */
 616                 attr_strings.create_time_attr = "CREATE_TIME";
 617                 attr_strings.access_time_attr = "ACCESS_TIME";
 618                 attr_strings.write_time_attr = "WRITE_TIME";
 619                 attr_strings.change_time_attr = "CHANGE_TIME";
 620         } else {
 621                 /* old-style names */
 622                 attr_strings.create_time_attr = NULL;
 623                 attr_strings.access_time_attr = "A_TIME";
 624                 attr_strings.write_time_attr = "M_TIME";
 625                 attr_strings.change_time_attr = "C_TIME";
 626         }
 627
 628         /* if this is to set the entire ACL... */
 629         if (*str == '*') {
 630                 /* ... then increment past the first colon if there is one */
 631                 if ((p = strchr(str, ':')) != NULL) {
 632                         ++p;
 633                 } else {
 634                         p = str;
 635                 }
 636         }
 637
 638         frame = talloc_stackframe();
 639         while (next_token_talloc(frame, &p, &tok, "\t,\r\n")) {
 640                 if (strncasecmp_m(tok, "MODE:", 5) == 0) {
 641                         long request = strtol(tok+5, NULL, 16);
 642                         if (request == 0) {
 643                                 dad->mode = (request |
 644                                              (IS_DOS_DIR(dad->mode)
 645                                               ? FILE_ATTRIBUTE_DIRECTORY
 646                                               : FILE_ATTRIBUTE_NORMAL));
 647                         } else {
 648                                 dad->mode = request;
 649                         }
 650                         continue;
 651                 }
 652
 653                 if (strncasecmp_m(tok, "SIZE:", 5) == 0) {
 654                         dad->size = (SMB_OFF_T)atof(tok+5);
 655                         continue;
 656                 }
 657
 658                 n = strlen(attr_strings.access_time_attr);
 659                 if (strncasecmp_m(tok, attr_strings.access_time_attr, n) == 0) {
 660                         dad->access_time = (time_t)strtol(tok+n+1, NULL, 10);
 661                         continue;
 662                 }
 663
 664                 n = strlen(attr_strings.change_time_attr);
 665                 if (strncasecmp_m(tok, attr_strings.change_time_attr, n) == 0) {
 666                         dad->change_time = (time_t)strtol(tok+n+1, NULL, 10);
 667                         continue;
 668                 }
 669
 670                 n = strlen(attr_strings.write_time_attr);
 671                 if (strncasecmp_m(tok, attr_strings.write_time_attr, n) == 0) {
 672                         dad->write_time = (time_t)strtol(tok+n+1, NULL, 10);
 673                         continue;
 674                 }
 675
 676                 if (attr_strings.create_time_attr != NULL) {
 677                         n = strlen(attr_strings.create_time_attr);
 678                         if (strncasecmp_m(tok, attr_strings.create_time_attr,
 679                                         n) == 0) {
 680                                 dad->create_time = (time_t)strtol(tok+n+1,
 681                                                                   NULL, 10);
 682                                 continue;
 683                         }
 684                 }
 685
 686                 if (strncasecmp_m(tok, "INODE:", 6) == 0) {
 687                         dad->inode = (SMB_INO_T)atof(tok+6);
 688                         continue;
 689                 }
 690         }
 691         TALLOC_FREE(frame);
 692 }
 693
 694 /*****************************************************
 695  Retrieve the acls for a file.
 696 *******************************************************/
 697
 698 static int
 699 cacl_get(SMBCCTX *context,
 700          TALLOC_CTX *ctx,
 701          SMBCSRV *srv,
 702          struct cli_state *ipc_cli,
 703          struct policy_handle *pol,
 704          const char *filename,
 705          const char *attr_name,
 706          char *buf,
 707          int bufsize)
 708 {
 709         uint32 i;
 710         int n = 0;
 711         int n_used;
 712         bool all;
 713         bool all_nt;
 714         bool all_nt_acls;
 715         bool all_dos;
 716         bool some_nt;
 717         bool some_dos;
 718         bool exclude_nt_revision = False;
 719         bool exclude_nt_owner = False;
 720         bool exclude_nt_group = False;
 721         bool exclude_nt_acl = False;
 722         bool exclude_dos_mode = False;
 723         bool exclude_dos_size = False;
 724         bool exclude_dos_create_time = False;
 725         bool exclude_dos_access_time = False;
 726         bool exclude_dos_write_time = False;
 727         bool exclude_dos_change_time = False;
 728         bool exclude_dos_inode = False;
 729         bool numeric = True;
 730         bool determine_size = (bufsize == 0);
 731         uint16_t fnum;
 732         struct security_descriptor *sd;
 733         fstring sidstr;
 734         fstring name_sandbox;
 735         char *name;
 736         char *pExclude;
 737         char *p;
 738         struct timespec create_time_ts;
 739         struct timespec write_time_ts;
 740         struct timespec access_time_ts;
 741         struct timespec change_time_ts;
 742         time_t create_time = (time_t)0;
 743         time_t write_time = (time_t)0;
 744         time_t access_time = (time_t)0;
 745         time_t change_time = (time_t)0;
 746         SMB_OFF_T size = 0;
 747         uint16 mode = 0;
 748         SMB_INO_T ino = 0;
 749         struct cli_state *cli = srv->cli;
 750         struct {
 751                 const char * create_time_attr;
 752                 const char * access_time_attr;
 753                 const char * write_time_attr;
 754                 const char * change_time_attr;
 755         } attr_strings;
 756         struct {
 757                 const char * create_time_attr;
 758                 const char * access_time_attr;
 759                 const char * write_time_attr;
 760                 const char * change_time_attr;
 761         } excl_attr_strings;
 762
 763         /* Determine whether to use old-style or new-style attribute names */
 764         if (context->internal->full_time_names) {
 765                 /* new-style names */
 766                 attr_strings.create_time_attr = "CREATE_TIME";
 767                 attr_strings.access_time_attr = "ACCESS_TIME";
 768                 attr_strings.write_time_attr = "WRITE_TIME";
 769                 attr_strings.change_time_attr = "CHANGE_TIME";
 770
 771                 excl_attr_strings.create_time_attr = "CREATE_TIME";
 772                 excl_attr_strings.access_time_attr = "ACCESS_TIME";
 773                 excl_attr_strings.write_time_attr = "WRITE_TIME";
 774                 excl_attr_strings.change_time_attr = "CHANGE_TIME";
 775         } else {
 776                 /* old-style names */
 777                 attr_strings.create_time_attr = NULL;
 778                 attr_strings.access_time_attr = "A_TIME";
 779                 attr_strings.write_time_attr = "M_TIME";
 780                 attr_strings.change_time_attr = "C_TIME";
 781
 782                 excl_attr_strings.create_time_attr = NULL;
 783                 excl_attr_strings.access_time_attr = "dos_attr.A_TIME";
 784                 excl_attr_strings.write_time_attr = "dos_attr.M_TIME";
 785                 excl_attr_strings.change_time_attr = "dos_attr.C_TIME";
 786         }
 787
 788         /* Copy name so we can strip off exclusions (if any are specified) */
 789         strncpy(name_sandbox, attr_name, sizeof(name_sandbox) - 1);
 790
 791         /* Ensure name is null terminated */
 792         name_sandbox[sizeof(name_sandbox) - 1] = '\0';
 793
 794         /* Play in the sandbox */
 795         name = name_sandbox;
 796
 797         /* If there are any exclusions, point to them and mask them from name */
 798         if ((pExclude = strchr(name, '!')) != NULL)
 799         {
 800                 *pExclude++ = '\0';
 801         }
 802
 803         all = (strncasecmp_m(name, "system.*", 8) == 0);
 804         all_nt = (strncasecmp_m(name, "system.nt_sec_desc.*", 20) == 0);
 805         all_nt_acls = (strncasecmp_m(name, "system.nt_sec_desc.acl.*", 24) == 0);
 806         all_dos = (strncasecmp_m(name, "system.dos_attr.*", 17) == 0);
 807         some_nt = (strncasecmp_m(name, "system.nt_sec_desc.", 19) == 0);
 808         some_dos = (strncasecmp_m(name, "system.dos_attr.", 16) == 0);
 809         numeric = (* (name + strlen(name) - 1) != '+');
 810
 811         /* Look for exclusions from "all" requests */
 812         if (all || all_nt || all_dos) {
 813                 /* Exclusions are delimited by '!' */
 814                 for (;
 815                      pExclude != NULL;
 816                      pExclude = (p == NULL ? NULL : p + 1)) {
 817
 818                         /* Find end of this exclusion name */
 819                         if ((p = strchr(pExclude, '!')) != NULL)
 820                         {
 821                                 *p = '\0';
 822                         }
 823
 824                         /* Which exclusion name is this? */
 825                         if (strcasecmp_m(pExclude,
 826                                        "nt_sec_desc.revision") == 0) {
 827                                 exclude_nt_revision = True;
 828                         }
 829                         else if (strcasecmp_m(pExclude,
 830                                             "nt_sec_desc.owner") == 0) {
 831                                 exclude_nt_owner = True;
 832                         }
 833                         else if (strcasecmp_m(pExclude,
 834                                             "nt_sec_desc.group") == 0) {
 835                                 exclude_nt_group = True;
 836                         }
 837                         else if (strcasecmp_m(pExclude,
 838                                             "nt_sec_desc.acl") == 0) {
 839                                 exclude_nt_acl = True;
 840                         }
 841                         else if (strcasecmp_m(pExclude,
 842                                             "dos_attr.mode") == 0) {
 843                                 exclude_dos_mode = True;
 844                         }
 845                         else if (strcasecmp_m(pExclude,
 846                                             "dos_attr.size") == 0) {
 847                                 exclude_dos_size = True;
 848                         }
 849                         else if (excl_attr_strings.create_time_attr != NULL &&
 850                                  strcasecmp_m(pExclude,
 851                                             excl_attr_strings.change_time_attr) == 0) {
 852                                 exclude_dos_create_time = True;
 853                         }
 854                         else if (strcasecmp_m(pExclude,
 855                                             excl_attr_strings.access_time_attr) == 0) {
 856                                 exclude_dos_access_time = True;
 857                         }
 858                         else if (strcasecmp_m(pExclude,
 859                                             excl_attr_strings.write_time_attr) == 0) {
 860                                 exclude_dos_write_time = True;
 861                         }
 862                         else if (strcasecmp_m(pExclude,
 863                                             excl_attr_strings.change_time_attr) == 0) {
 864                                 exclude_dos_change_time = True;
 865                         }
 866                         else if (strcasecmp_m(pExclude, "dos_attr.inode") == 0) {
 867                                 exclude_dos_inode = True;
 868                         }
 869                         else {
 870                                 DEBUG(5, ("cacl_get received unknown exclusion: %s\n",
 871                                           pExclude));
 872                                 errno = ENOATTR;
 873                                 return -1;
 874                         }
 875                 }
 876         }
 877
 878         n_used = 0;
 879
 880         /*
 881          * If we are (possibly) talking to an NT or new system and some NT
 882          * attributes have been requested...
 883          */
 884         if (ipc_cli && (all || some_nt || all_nt_acls)) {
 885                 char *targetpath = NULL;
 886                 struct cli_state *targetcli = NULL;
 887                 NTSTATUS status;
 888
 889                 /* Point to the portion after "system.nt_sec_desc." */
 890                 name += 19;     /* if (all) this will be invalid but unused */
 891
 892                 status = cli_resolve_path(
 893                         ctx, "", context->internal->auth_info,
 894                         cli, filename, &targetcli, &targetpath);
 895                 if (!NT_STATUS_IS_OK(status)) {
 896                         DEBUG(5, ("cacl_get Could not resolve %s\n",
 897                                 filename));
 898                         errno = ENOENT;
 899                         return -1;
 900                 }
 901
 902                 /* ... then obtain any NT attributes which were requested */
 903                 status = cli_ntcreate(targetcli, targetpath, 0,
 904                                       CREATE_ACCESS_READ, 0,
 905                                       FILE_SHARE_READ|FILE_SHARE_WRITE,
 906                                       FILE_OPEN, 0x0, 0x0, &fnum);
 907                 if (!NT_STATUS_IS_OK(status)) {
 908                         DEBUG(5, ("cacl_get failed to open %s: %s\n",
 909                                   targetpath, nt_errstr(status)));
 910                         errno = 0;
 911                         return -1;
 912                 }
 913
 914                 status = cli_query_secdesc(targetcli, fnum, ctx, &sd);
 915                 if (!NT_STATUS_IS_OK(status)) {
 916                         DEBUG(5,("cacl_get Failed to query old descriptor "
 917                                  "of %s: %s\n",
 918                                   targetpath, nt_errstr(status)));
 919                         errno = 0;
 920                         return -1;
 921                 }
 922
 923                 cli_close(targetcli, fnum);
 924
 925                 if (! exclude_nt_revision) {
 926                         if (all || all_nt) {
 927                                 if (determine_size) {
 928                                         p = talloc_asprintf(ctx,
 929                                                             "REVISION:%d",
 930                                                             sd->revision);
 931                                         if (!p) {
 932                                                 errno = ENOMEM;
 933                                                 return -1;
 934                                         }
 935                                         n = strlen(p);
 936                                 } else {
 937                                         n = snprintf(buf, bufsize,
 938                                                      "REVISION:%d",
 939                                                      sd->revision);
 940                                 }
 941                         } else if (strcasecmp_m(name, "revision") == 0) {
 942                                 if (determine_size) {
 943                                         p = talloc_asprintf(ctx, "%d",
 944                                                             sd->revision);
 945                                         if (!p) {
 946                                                 errno = ENOMEM;
 947                                                 return -1;
 948                                         }
 949                                         n = strlen(p);
 950                                 } else {
 951                                         n = snprintf(buf, bufsize, "%d",
 952                                                      sd->revision);
 953                                 }
 954                         }
 955
 956                         if (!determine_size && n > bufsize) {
 957                                 errno = ERANGE;
 958                                 return -1;
 959                         }
 960                         buf += n;
 961                         n_used += n;
 962                         bufsize -= n;
 963                         n = 0;
 964                 }
 965
 966                 if (! exclude_nt_owner) {
 967                         /* Get owner and group sid */
 968                         if (sd->owner_sid) {
 969                                 convert_sid_to_string(ipc_cli, pol,
 970                                                       sidstr,
 971                                                       numeric,
 972                                                       sd->owner_sid);
 973                         } else {
 974                                 fstrcpy(sidstr, "");
 975                         }
 976
 977                         if (all || all_nt) {
 978                                 if (determine_size) {
 979                                         p = talloc_asprintf(ctx, ",OWNER:%s",
 980                                                             sidstr);
 981                                         if (!p) {
 982                                                 errno = ENOMEM;
 983                                                 return -1;
 984                                         }
 985                                         n = strlen(p);
 986                                 } else if (sidstr[0] != '\0') {
 987                                         n = snprintf(buf, bufsize,
 988                                                      ",OWNER:%s", sidstr);
 989                                 }
 990                         } else if (strncasecmp_m(name, "owner", 5) == 0) {
 991                                 if (determine_size) {
 992                                         p = talloc_asprintf(ctx, "%s", sidstr);
 993                                         if (!p) {
 994                                                 errno = ENOMEM;
 995                                                 return -1;
 996                                         }
 997                                         n = strlen(p);
 998                                 } else {
 999                                         n = snprintf(buf, bufsize, "%s",
1000                                                      sidstr);
1001                                 }
1002                         }
1003
1004                         if (!determine_size && n > bufsize) {
1005                                 errno = ERANGE;
1006                                 return -1;
1007                         }
1008                         buf += n;
1009                         n_used += n;
1010                         bufsize -= n;
1011                         n = 0;
1012                 }
1013
1014                 if (! exclude_nt_group) {
1015                         if (sd->group_sid) {
1016                                 convert_sid_to_string(ipc_cli, pol,
1017                                                       sidstr, numeric,
1018                                                       sd->group_sid);
1019                         } else {
1020                                 fstrcpy(sidstr, "");
1021                         }
1022
1023                         if (all || all_nt) {
1024                                 if (determine_size) {
1025                                         p = talloc_asprintf(ctx, ",GROUP:%s",
1026                                                             sidstr);
1027                                         if (!p) {
1028                                                 errno = ENOMEM;
1029                                                 return -1;
1030                                         }
1031                                         n = strlen(p);
1032                                 } else if (sidstr[0] != '\0') {
1033                                         n = snprintf(buf, bufsize,
1034                                                      ",GROUP:%s", sidstr);
1035                                 }
1036                         } else if (strncasecmp_m(name, "group", 5) == 0) {
1037                                 if (determine_size) {
1038                                         p = talloc_asprintf(ctx, "%s", sidstr);
1039                                         if (!p) {
1040                                                 errno = ENOMEM;
1041                                                 return -1;
1042                                         }
1043                                         n = strlen(p);
1044                                 } else {
1045                                         n = snprintf(buf, bufsize,
1046                                                      "%s", sidstr);
1047                                 }
1048                         }
1049
1050                         if (!determine_size && n > bufsize) {
1051                                 errno = ERANGE;
1052                                 return -1;
1053                         }
1054                         buf += n;
1055                         n_used += n;
1056                         bufsize -= n;
1057                         n = 0;
1058                 }
1059
1060                 if (! exclude_nt_acl) {
1061                         /* Add aces to value buffer  */
1062                         for (i = 0; sd->dacl && i < sd->dacl->num_aces; i++) {
1063
1064                                 struct security_ace *ace = &sd->dacl->aces[i];
1065                                 convert_sid_to_string(ipc_cli, pol,
1066                                                       sidstr, numeric,
1067                                                       &ace->trustee);
1068
1069                                 if (all || all_nt) {
1070                                         if (determine_size) {
1071                                                 p = talloc_asprintf(
1072                                                         ctx,
1073                                                         ",ACL:"
1074                                                         "%s:%d/%d/0x%08x",
1075                                                         sidstr,
1076                                                         ace->type,
1077                                                         ace->flags,
1078                                                         ace->access_mask);
1079                                                 if (!p) {
1080                                                         errno = ENOMEM;
1081                                                         return -1;
1082                                                 }
1083                                                 n = strlen(p);
1084                                         } else {
1085                                                 n = snprintf(
1086                                                         buf, bufsize,
1087                                                         ",ACL:%s:%d/%d/0x%08x",
1088                                                         sidstr,
1089                                                         ace->type,
1090                                                         ace->flags,
1091                                                         ace->access_mask);
1092                                         }
1093                                 } else if ((strncasecmp_m(name, "acl", 3) == 0 &&
1094                                             strcasecmp_m(name+3, sidstr) == 0) ||
1095                                            (strncasecmp_m(name, "acl+", 4) == 0 &&
1096                                             strcasecmp_m(name+4, sidstr) == 0)) {
1097                                         if (determine_size) {
1098                                                 p = talloc_asprintf(
1099                                                         ctx,
1100                                                         "%d/%d/0x%08x",
1101                                                         ace->type,
1102                                                         ace->flags,
1103                                                         ace->access_mask);
1104                                                 if (!p) {
1105                                                         errno = ENOMEM;
1106                                                         return -1;
1107                                                 }
1108                                                 n = strlen(p);
1109                                         } else {
1110                                                 n = snprintf(buf, bufsize,
1111                                                              "%d/%d/0x%08x",
1112                                                              ace->type,
1113                                                              ace->flags,
1114                                                              ace->access_mask);
1115                                         }
1116                                 } else if (all_nt_acls) {
1117                                         if (determine_size) {
1118                                                 p = talloc_asprintf(
1119                                                         ctx,
1120                                                         "%s%s:%d/%d/0x%08x",
1121                                                         i ? "," : "",
1122                                                         sidstr,
1123                                                         ace->type,
1124                                                         ace->flags,
1125                                                         ace->access_mask);
1126                                                 if (!p) {
1127                                                         errno = ENOMEM;
1128                                                         return -1;
1129                                                 }
1130                                                 n = strlen(p);
1131                                         } else {
1132                                                 n = snprintf(buf, bufsize,
1133                                                              "%s%s:%d/%d/0x%08x",
1134                                                              i ? "," : "",
1135                                                              sidstr,
1136                                                              ace->type,
1137                                                              ace->flags,
1138                                                              ace->access_mask);
1139                                         }
1140                                 }
1141                                 if (!determine_size && n > bufsize) {
1142                                         errno = ERANGE;
1143                                         return -1;
1144                                 }
1145                                 buf += n;
1146                                 n_used += n;
1147                                 bufsize -= n;
1148                                 n = 0;
1149                         }
1150                 }
1151
1152                 /* Restore name pointer to its original value */
1153                 name -= 19;
1154         }
1155
1156         if (all || some_dos) {
1157                 /* Point to the portion after "system.dos_attr." */
1158                 name += 16;     /* if (all) this will be invalid but unused */
1159
1160                 /* Obtain the DOS attributes */
1161                 if (!SMBC_getatr(context, srv, filename, &mode, &size,
1162                                  &create_time_ts,
1163                                  &access_time_ts,
1164                                  &write_time_ts,
1165                                  &change_time_ts,
1166                                  &ino)) {
1167
1168                         errno = SMBC_errno(context, srv->cli);
1169                         return -1;
1170                 }
1171
1172                 create_time = convert_timespec_to_time_t(create_time_ts);
1173                 access_time = convert_timespec_to_time_t(access_time_ts);
1174                 write_time = convert_timespec_to_time_t(write_time_ts);
1175                 change_time = convert_timespec_to_time_t(change_time_ts);
1176
1177                 if (! exclude_dos_mode) {
1178                         if (all || all_dos) {
1179                                 if (determine_size) {
1180                                         p = talloc_asprintf(ctx,
1181                                                             "%sMODE:0x%x",
1182                                                             (ipc_cli &&
1183                                                              (all || some_nt)
1184                                                              ? ","
1185                                                              : ""),
1186                                                             mode);
1187                                         if (!p) {
1188                                                 errno = ENOMEM;
1189                                                 return -1;
1190                                         }
1191                                         n = strlen(p);
1192                                 } else {
1193                                         n = snprintf(buf, bufsize,
1194                                                      "%sMODE:0x%x",
1195                                                      (ipc_cli &&
1196                                                       (all || some_nt)
1197                                                       ? ","
1198                                                       : ""),
1199                                                      mode);
1200                                 }
1201                         } else if (strcasecmp_m(name, "mode") == 0) {
1202                                 if (determine_size) {
1203                                         p = talloc_asprintf(ctx, "0x%x", mode);
1204                                         if (!p) {
1205                                                 errno = ENOMEM;
1206                                                 return -1;
1207                                         }
1208                                         n = strlen(p);
1209                                 } else {
1210                                         n = snprintf(buf, bufsize,
1211                                                      "0x%x", mode);
1212                                 }
1213                         }
1214
1215                         if (!determine_size && n > bufsize) {
1216                                 errno = ERANGE;
1217                                 return -1;
1218                         }
1219                         buf += n;
1220                         n_used += n;
1221                         bufsize -= n;
1222                         n = 0;
1223                 }
1224
1225                 if (! exclude_dos_size) {
1226                         if (all || all_dos) {
1227                                 if (determine_size) {
1228                                         p = talloc_asprintf(
1229                                                 ctx,
1230                                                 ",SIZE:%.0f",
1231                                                 (double)size);
1232                                         if (!p) {
1233                                                 errno = ENOMEM;
1234                                                 return -1;
1235                                         }
1236                                         n = strlen(p);
1237                                 } else {
1238                                         n = snprintf(buf, bufsize,
1239                                                      ",SIZE:%.0f",
1240                                                      (double)size);
1241                                 }
1242                         } else if (strcasecmp_m(name, "size") == 0) {
1243                                 if (determine_size) {
1244                                         p = talloc_asprintf(
1245                                                 ctx,
1246                                                 "%.0f",
1247                                                 (double)size);
1248                                         if (!p) {
1249                                                 errno = ENOMEM;
1250                                                 return -1;
1251                                         }
1252                                         n = strlen(p);
1253                                 } else {
1254                                         n = snprintf(buf, bufsize,
1255                                                      "%.0f",
1256                                                      (double)size);
1257                                 }
1258                         }
1259
1260                         if (!determine_size && n > bufsize) {
1261                                 errno = ERANGE;
1262                                 return -1;
1263                         }
1264                         buf += n;
1265                         n_used += n;
1266                         bufsize -= n;
1267                         n = 0;
1268                 }
1269
1270                 if (! exclude_dos_create_time &&
1271                     attr_strings.create_time_attr != NULL) {
1272                         if (all || all_dos) {
1273                                 if (determine_size) {
1274                                         p = talloc_asprintf(ctx,
1275                                                             ",%s:%lu",
1276                                                             attr_strings.create_time_attr,
1277                                                             (unsigned long) create_time);
1278                                         if (!p) {
1279                                                 errno = ENOMEM;
1280                                                 return -1;
1281                                         }
1282                                         n = strlen(p);
1283                                 } else {
1284                                         n = snprintf(buf, bufsize,
1285                                                      ",%s:%lu",
1286                                                      attr_strings.create_time_attr,
1287                                                      (unsigned long) create_time);
1288                                 }
1289                         } else if (strcasecmp_m(name, attr_strings.create_time_attr) == 0) {
1290                                 if (determine_size) {
1291                                         p = talloc_asprintf(ctx, "%lu", (unsigned long) create_time);
1292                                         if (!p) {
1293                                                 errno = ENOMEM;
1294                                                 return -1;
1295                                         }
1296                                         n = strlen(p);
1297                                 } else {
1298                                         n = snprintf(buf, bufsize,
1299                                                      "%lu", (unsigned long) create_time);
1300                                 }
1301                         }
1302
1303                         if (!determine_size && n > bufsize) {
1304                                 errno = ERANGE;
1305                                 return -1;
1306                         }
1307                         buf += n;
1308                         n_used += n;
1309                         bufsize -= n;
1310                         n = 0;
1311                 }
1312
1313                 if (! exclude_dos_access_time) {
1314                         if (all || all_dos) {
1315                                 if (determine_size) {
1316                                         p = talloc_asprintf(ctx,
1317                                                             ",%s:%lu",
1318                                                             attr_strings.access_time_attr,
1319                                                             (unsigned long) access_time);
1320                                         if (!p) {
1321                                                 errno = ENOMEM;
1322                                                 return -1;
1323                                         }
1324                                         n = strlen(p);
1325                                 } else {
1326                                         n = snprintf(buf, bufsize,
1327                                                      ",%s:%lu",
1328                                                      attr_strings.access_time_attr,
1329                                                      (unsigned long) access_time);
1330                                 }
1331                         } else if (strcasecmp_m(name, attr_strings.access_time_attr) == 0) {
1332                                 if (determine_size) {
1333                                         p = talloc_asprintf(ctx, "%lu", (unsigned long) access_time);
1334                                         if (!p) {
1335                                                 errno = ENOMEM;
1336                                                 return -1;
1337                                         }
1338                                         n = strlen(p);
1339                                 } else {
1340                                         n = snprintf(buf, bufsize,
1341                                                      "%lu", (unsigned long) access_time);
1342                                 }
1343                         }
1344
1345                         if (!determine_size && n > bufsize) {
1346                                 errno = ERANGE;
1347                                 return -1;
1348                         }
1349                         buf += n;
1350                         n_used += n;
1351                         bufsize -= n;
1352                         n = 0;
1353                 }
1354
1355                 if (! exclude_dos_write_time) {
1356                         if (all || all_dos) {
1357                                 if (determine_size) {
1358                                         p = talloc_asprintf(ctx,
1359                                                             ",%s:%lu",
1360                                                             attr_strings.write_time_attr,
1361                                                             (unsigned long) write_time);
1362                                         if (!p) {
1363                                                 errno = ENOMEM;
1364                                                 return -1;
1365                                         }
1366                                         n = strlen(p);
1367                                 } else {
1368                                         n = snprintf(buf, bufsize,
1369                                                      ",%s:%lu",
1370                                                      attr_strings.write_time_attr,
1371                                                      (unsigned long) write_time);
1372                                 }
1373                         } else if (strcasecmp_m(name, attr_strings.write_time_attr) == 0) {
1374                                 if (determine_size) {
1375                                         p = talloc_asprintf(ctx, "%lu", (unsigned long) write_time);
1376                                         if (!p) {
1377                                                 errno = ENOMEM;
1378                                                 return -1;
1379                                         }
1380                                         n = strlen(p);
1381                                 } else {
1382                                         n = snprintf(buf, bufsize,
1383                                                      "%lu", (unsigned long) write_time);
1384                                 }
1385                         }
1386
1387                         if (!determine_size && n > bufsize) {
1388                                 errno = ERANGE;
1389                                 return -1;
1390                         }
1391                         buf += n;
1392                         n_used += n;
1393                         bufsize -= n;
1394                         n = 0;
1395                 }
1396
1397                 if (! exclude_dos_change_time) {
1398                         if (all || all_dos) {
1399                                 if (determine_size) {
1400                                         p = talloc_asprintf(ctx,
1401                                                             ",%s:%lu",
1402                                                             attr_strings.change_time_attr,
1403                                                             (unsigned long) change_time);
1404                                         if (!p) {
1405                                                 errno = ENOMEM;
1406                                                 return -1;
1407                                         }
1408                                         n = strlen(p);
1409                                 } else {
1410                                         n = snprintf(buf, bufsize,
1411                                                      ",%s:%lu",
1412                                                      attr_strings.change_time_attr,
1413                                                      (unsigned long) change_time);
1414                                 }
1415                         } else if (strcasecmp_m(name, attr_strings.change_time_attr) == 0) {
1416                                 if (determine_size) {
1417                                         p = talloc_asprintf(ctx, "%lu", (unsigned long) change_time);
1418                                         if (!p) {
1419                                                 errno = ENOMEM;
1420                                                 return -1;
1421                                         }
1422                                         n = strlen(p);
1423                                 } else {
1424                                         n = snprintf(buf, bufsize,
1425                                                      "%lu", (unsigned long) change_time);
1426                                 }
1427                         }
1428
1429                         if (!determine_size && n > bufsize) {
1430                                 errno = ERANGE;
1431                                 return -1;
1432                         }
1433                         buf += n;
1434                         n_used += n;
1435                         bufsize -= n;
1436                         n = 0;
1437                 }
1438
1439                 if (! exclude_dos_inode) {
1440                         if (all || all_dos) {
1441                                 if (determine_size) {
1442                                         p = talloc_asprintf(
1443                                                 ctx,
1444                                                 ",INODE:%.0f",
1445                                                 (double)ino);
1446                                         if (!p) {
1447                                                 errno = ENOMEM;
1448                                                 return -1;
1449                                         }
1450                                         n = strlen(p);
1451                                 } else {
1452                                         n = snprintf(buf, bufsize,
1453                                                      ",INODE:%.0f",
1454                                                      (double) ino);
1455                                 }
1456                         } else if (strcasecmp_m(name, "inode") == 0) {
1457                                 if (determine_size) {
1458                                         p = talloc_asprintf(
1459                                                 ctx,
1460                                                 "%.0f",
1461                                                 (double) ino);
1462                                         if (!p) {
1463                                                 errno = ENOMEM;
1464                                                 return -1;
1465                                         }
1466                                         n = strlen(p);
1467                                 } else {
1468                                         n = snprintf(buf, bufsize,
1469                                                      "%.0f",
1470                                                      (double) ino);
1471                                 }
1472                         }
1473
1474                         if (!determine_size && n > bufsize) {
1475                                 errno = ERANGE;
1476                                 return -1;
1477                         }
1478                         buf += n;
1479                         n_used += n;
1480                         bufsize -= n;
1481                         n = 0;
1482                 }
1483
1484                 /* Restore name pointer to its original value */
1485                 name -= 16;
1486         }
1487
1488         if (n_used == 0) {
1489                 errno = ENOATTR;
1490                 return -1;
1491         }
1492
1493         return n_used;
1494 }
1495
1496 /*****************************************************
1497 set the ACLs on a file given an ascii description
1498 *******************************************************/
1499 static int
1500 cacl_set(SMBCCTX *context,
1501         TALLOC_CTX *ctx,
1502         struct cli_state *cli,
1503         struct cli_state *ipc_cli,
1504         struct policy_handle *pol,
1505         const char *filename,
1506         char *the_acl,
1507         int mode,
1508         int flags)
1509 {
1510         uint16_t fnum = (uint16_t)-1;
1511         int err = 0;
1512         struct security_descriptor *sd = NULL, *old;
1513         struct security_acl *dacl = NULL;
1514         struct dom_sid *owner_sid = NULL;
1515         struct dom_sid *group_sid = NULL;
1516         uint32 i, j;
1517         size_t sd_size;
1518         int ret = 0;
1519         char *p;
1520         bool numeric = True;
1521         char *targetpath = NULL;
1522         struct cli_state *targetcli = NULL;
1523         NTSTATUS status;
1524
1525         /* the_acl will be null for REMOVE_ALL operations */
1526         if (the_acl) {
1527                 numeric = ((p = strchr(the_acl, ':')) != NULL &&
1528                            p > the_acl &&
1529                            p[-1] != '+');
1530
1531                 /* if this is to set the entire ACL... */
1532                 if (*the_acl == '*') {
1533                         /* ... then increment past the first colon */
1534                         the_acl = p + 1;
1535                 }
1536
1537                 sd = sec_desc_parse(ctx, ipc_cli, pol, numeric, the_acl);
1538                 if (!sd) {
1539                         errno = EINVAL;
1540                         return -1;
1541                 }
1542         }
1543
1544         /* SMBC_XATTR_MODE_REMOVE_ALL is the only caller
1545            that doesn't deref sd */
1546
1547         if (!sd && (mode != SMBC_XATTR_MODE_REMOVE_ALL)) {
1548                 errno = EINVAL;
1549                 return -1;
1550         }
1551
1552         status = cli_resolve_path(ctx, "", context->internal->auth_info,
1553                                   cli, filename, &targetcli, &targetpath);
1554         if (!NT_STATUS_IS_OK(status)) {
1555                 DEBUG(5,("cacl_set: Could not resolve %s\n", filename));
1556                 errno = ENOENT;
1557                 return -1;
1558         }
1559
1560         /* The desired access below is the only one I could find that works
1561            with NT4, W2KP and Samba */
1562
1563         status = cli_ntcreate(targetcli, targetpath, 0, CREATE_ACCESS_READ, 0,
1564                               FILE_SHARE_READ|FILE_SHARE_WRITE, FILE_OPEN,
1565                               0x0, 0x0, &fnum);
1566         if (!NT_STATUS_IS_OK(status)) {
1567                 DEBUG(5, ("cacl_set failed to open %s: %s\n",
1568                           targetpath, nt_errstr(status)));
1569                 errno = 0;
1570                 return -1;
1571         }
1572
1573         status = cli_query_secdesc(targetcli, fnum, ctx, &old);
1574         if (!NT_STATUS_IS_OK(status)) {
1575                 DEBUG(5,("cacl_set Failed to query old descriptor of %s: %s\n",
1576                          targetpath, nt_errstr(status)));
1577                 errno = 0;
1578                 return -1;
1579         }
1580
1581         cli_close(targetcli, fnum);
1582
1583         switch (mode) {
1584         case SMBC_XATTR_MODE_REMOVE_ALL:
1585                 old->dacl->num_aces = 0;
1586                 dacl = old->dacl;
1587                 break;
1588
1589         case SMBC_XATTR_MODE_REMOVE:
1590                 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
1591                         bool found = False;
1592
1593                         for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
1594                                 if (sec_ace_equal(&sd->dacl->aces[i],
1595                                                   &old->dacl->aces[j])) {
1596                                         uint32 k;
1597                                         for (k=j; k<old->dacl->num_aces-1;k++) {
1598                                                 old->dacl->aces[k] =
1599                                                         old->dacl->aces[k+1];
1600                                         }
1601                                         old->dacl->num_aces--;
1602                                         found = True;
1603                                         dacl = old->dacl;
1604                                         break;
1605                                 }
1606                         }
1607
1608                         if (!found) {
1609                                 err = ENOATTR;
1610                                 ret = -1;
1611                                 goto failed;
1612                         }
1613                 }
1614                 break;
1615
1616         case SMBC_XATTR_MODE_ADD:
1617                 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
1618                         bool found = False;
1619
1620                         for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
1621                                 if (dom_sid_equal(&sd->dacl->aces[i].trustee,
1622                                               &old->dacl->aces[j].trustee)) {
1623                                         if (!(flags & SMBC_XATTR_FLAG_CREATE)) {
1624                                                 err = EEXIST;
1625                                                 ret = -1;
1626                                                 goto failed;
1627                                         }
1628                                         old->dacl->aces[j] = sd->dacl->aces[i];
1629                                         ret = -1;
1630                                         found = True;
1631                                 }
1632                         }
1633
1634                         if (!found && (flags & SMBC_XATTR_FLAG_REPLACE)) {
1635                                 err = ENOATTR;
1636                                 ret = -1;
1637                                 goto failed;
1638                         }
1639
1640                         for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
1641                                 add_ace(&old->dacl, &sd->dacl->aces[i], ctx);
1642                         }
1643                 }
1644                 dacl = old->dacl;
1645                 break;
1646
1647         case SMBC_XATTR_MODE_SET:
1648                 old = sd;
1649                 owner_sid = old->owner_sid;
1650                 group_sid = old->group_sid;
1651                 dacl = old->dacl;
1652                 break;
1653
1654         case SMBC_XATTR_MODE_CHOWN:
1655                 owner_sid = sd->owner_sid;
1656                 break;
1657
1658         case SMBC_XATTR_MODE_CHGRP:
1659                 group_sid = sd->group_sid;
1660                 break;
1661         }
1662
1663         /* Denied ACE entries must come before allowed ones */
1664         sort_acl(old->dacl);
1665
1666         /* Create new security descriptor and set it */
1667         sd = make_sec_desc(ctx, old->revision, SEC_DESC_SELF_RELATIVE,
1668                            owner_sid, group_sid, NULL, dacl, &sd_size);
1669
1670         status = cli_ntcreate(targetcli, targetpath, 0,
1671                               WRITE_DAC_ACCESS | WRITE_OWNER_ACCESS, 0,
1672                               FILE_SHARE_READ|FILE_SHARE_WRITE, FILE_OPEN,
1673                               0x0, 0x0, &fnum);
1674         if (!NT_STATUS_IS_OK(status)) {
1675                 DEBUG(5, ("cacl_set failed to open %s: %s\n",
1676                           targetpath, nt_errstr(status)));
1677                 errno = 0;
1678                 return -1;
1679         }
1680
1681         status = cli_set_secdesc(targetcli, fnum, sd);
1682         if (!NT_STATUS_IS_OK(status)) {
1683                 DEBUG(5, ("ERROR: secdesc set failed: %s\n",
1684                           nt_errstr(status)));
1685                 ret = -1;
1686         }
1687
1688         /* Clean up */
1689
1690 failed:
1691         cli_close(targetcli, fnum);
1692
1693         if (err != 0) {
1694                 errno = err;
1695         }
1696
1697         return ret;
1698 }
1699
1700
1701 int
1702 SMBC_setxattr_ctx(SMBCCTX *context,
1703                   const char *fname,
1704                   const char *name,
1705                   const void *value,
1706                   size_t size,
1707                   int flags)
1708 {
1709         int ret;
1710         int ret2;
1711         SMBCSRV *srv = NULL;
1712         SMBCSRV *ipc_srv = NULL;
1713         char *server = NULL;
1714         char *share = NULL;
1715         char *user = NULL;
1716         char *password = NULL;
1717         char *workgroup = NULL;
1718         char *path = NULL;
1719         DOS_ATTR_DESC *dad = NULL;
1720         struct {
1721                 const char * create_time_attr;
1722                 const char * access_time_attr;
1723                 const char * write_time_attr;
1724                 const char * change_time_attr;
1725         } attr_strings;
1726         TALLOC_CTX *frame = talloc_stackframe();
1727
1728         if (!context || !context->internal->initialized) {
1729                 errno = EINVAL;  /* Best I can think of ... */
1730                 TALLOC_FREE(frame);
1731                 return -1;
1732         }
1733
1734         if (!fname) {
1735                 errno = EINVAL;
1736                 TALLOC_FREE(frame);
1737                 return -1;
1738         }
1739
1740         DEBUG(4, ("smbc_setxattr(%s, %s, %.*s)\n",
1741                   fname, name, (int) size, (const char*)value));
1742
1743         if (SMBC_parse_path(frame,
1744                             context,
1745                             fname,
1746                             &workgroup,
1747                             &server,
1748                             &share,
1749                             &path,
1750                             &user,
1751                             &password,
1752                             NULL)) {
1753                 errno = EINVAL;
1754                 TALLOC_FREE(frame);
1755                 return -1;
1756         }
1757
1758         if (!user || user[0] == (char)0) {
1759                 user = talloc_strdup(frame, smbc_getUser(context));
1760                 if (!user) {
1761                         errno = ENOMEM;
1762                         TALLOC_FREE(frame);
1763                         return -1;
1764                 }
1765         }
1766
1767         srv = SMBC_server(frame, context, True,
1768                           server, share, &workgroup, &user, &password);
1769         if (!srv) {
1770                 TALLOC_FREE(frame);
1771                 return -1;  /* errno set by SMBC_server */
1772         }
1773
1774         if (! srv->no_nt_session) {
1775                 ipc_srv = SMBC_attr_server(frame, context, server, share,
1776                                            &workgroup, &user, &password);
1777                 if (! ipc_srv) {
1778                         srv->no_nt_session = True;
1779                 }
1780         } else {
1781                 ipc_srv = NULL;
1782         }
1783
1784         /*
1785          * Are they asking to set the entire set of known attributes?
1786          */
1787         if (strcasecmp_m(name, "system.*") == 0 ||
1788             strcasecmp_m(name, "system.*+") == 0) {
1789                 /* Yup. */
1790                 char *namevalue =
1791                         talloc_asprintf(talloc_tos(), "%s:%s",
1792                                         name+7, (const char *) value);
1793                 if (! namevalue) {
1794                         errno = ENOMEM;
1795                         ret = -1;
1796                         TALLOC_FREE(frame);
1797                         return -1;
1798                 }
1799
1800                 if (ipc_srv) {
1801                         ret = cacl_set(context, talloc_tos(), srv->cli,
1802                                        ipc_srv->cli, &ipc_srv->pol, path,
1803                                        namevalue,
1804                                        (*namevalue == '*'
1805                                         ? SMBC_XATTR_MODE_SET
1806                                         : SMBC_XATTR_MODE_ADD),
1807                                        flags);
1808                 } else {
1809                         ret = 0;
1810                 }
1811
1812                 /* get a DOS Attribute Descriptor with current attributes */
1813                 dad = dos_attr_query(context, talloc_tos(), path, srv);
1814                 if (dad) {
1815                         /* Overwrite old with new, using what was provided */
1816                         dos_attr_parse(context, dad, srv, namevalue);
1817
1818                         /* Set the new DOS attributes */
1819                         if (! SMBC_setatr(context, srv, path,
1820                                           dad->create_time,
1821                                           dad->access_time,
1822                                           dad->write_time,
1823                                           dad->change_time,
1824                                           dad->mode)) {
1825
1826                                 /* cause failure if NT failed too */
1827                                 dad = NULL;
1828                         }
1829                 }
1830
1831                 /* we only fail if both NT and DOS sets failed */
1832                 if (ret < 0 && ! dad) {
1833                         ret = -1; /* in case dad was null */
1834                 }
1835                 else {
1836                         ret = 0;
1837                 }
1838
1839                 TALLOC_FREE(frame);
1840                 return ret;
1841         }
1842
1843         /*
1844          * Are they asking to set an access control element or to set
1845          * the entire access control list?
1846          */
1847         if (strcasecmp_m(name, "system.nt_sec_desc.*") == 0 ||
1848             strcasecmp_m(name, "system.nt_sec_desc.*+") == 0 ||
1849             strcasecmp_m(name, "system.nt_sec_desc.revision") == 0 ||
1850             strncasecmp_m(name, "system.nt_sec_desc.acl", 22) == 0 ||
1851             strncasecmp_m(name, "system.nt_sec_desc.acl+", 23) == 0) {
1852
1853                 /* Yup. */
1854                 char *namevalue =
1855                         talloc_asprintf(talloc_tos(), "%s:%s",
1856                                         name+19, (const char *) value);
1857
1858                 if (! ipc_srv) {
1859                         ret = -1; /* errno set by SMBC_server() */
1860                 }
1861                 else if (! namevalue) {
1862                         errno = ENOMEM;
1863                         ret = -1;
1864                 } else {
1865                         ret = cacl_set(context, talloc_tos(), srv->cli,
1866                                        ipc_srv->cli, &ipc_srv->pol, path,
1867                                        namevalue,
1868                                        (*namevalue == '*'
1869                                         ? SMBC_XATTR_MODE_SET
1870                                         : SMBC_XATTR_MODE_ADD),
1871                                        flags);
1872                 }
1873                 TALLOC_FREE(frame);
1874                 return ret;
1875         }
1876
1877         /*
1878          * Are they asking to set the owner?
1879          */
1880         if (strcasecmp_m(name, "system.nt_sec_desc.owner") == 0 ||
1881             strcasecmp_m(name, "system.nt_sec_desc.owner+") == 0) {
1882
1883                 /* Yup. */
1884                 char *namevalue =
1885                         talloc_asprintf(talloc_tos(), "%s:%s",
1886                                         name+19, (const char *) value);
1887
1888                 if (! ipc_srv) {
1889                         ret = -1; /* errno set by SMBC_server() */
1890                 }
1891                 else if (! namevalue) {
1892                         errno = ENOMEM;
1893                         ret = -1;
1894                 } else {
1895                         ret = cacl_set(context, talloc_tos(), srv->cli,
1896                                        ipc_srv->cli, &ipc_srv->pol, path,
1897                                        namevalue, SMBC_XATTR_MODE_CHOWN, 0);
1898                 }
1899                 TALLOC_FREE(frame);
1900                 return ret;
1901         }
1902
1903         /*
1904          * Are they asking to set the group?
1905          */
1906         if (strcasecmp_m(name, "system.nt_sec_desc.group") == 0 ||
1907             strcasecmp_m(name, "system.nt_sec_desc.group+") == 0) {
1908
1909                 /* Yup. */
1910                 char *namevalue =
1911                         talloc_asprintf(talloc_tos(), "%s:%s",
1912                                         name+19, (const char *) value);
1913
1914                 if (! ipc_srv) {
1915                         /* errno set by SMBC_server() */
1916                         ret = -1;
1917                 }
1918                 else if (! namevalue) {
1919                         errno = ENOMEM;
1920                         ret = -1;
1921                 } else {
1922                         ret = cacl_set(context, talloc_tos(), srv->cli,
1923                                        ipc_srv->cli, &ipc_srv->pol, path,
1924                                        namevalue, SMBC_XATTR_MODE_CHGRP, 0);
1925                 }
1926                 TALLOC_FREE(frame);
1927                 return ret;
1928         }
1929
1930         /* Determine whether to use old-style or new-style attribute names */
1931         if (context->internal->full_time_names) {
1932                 /* new-style names */
1933                 attr_strings.create_time_attr = "system.dos_attr.CREATE_TIME";
1934                 attr_strings.access_time_attr = "system.dos_attr.ACCESS_TIME";
1935                 attr_strings.write_time_attr = "system.dos_attr.WRITE_TIME";
1936                 attr_strings.change_time_attr = "system.dos_attr.CHANGE_TIME";
1937         } else {
1938                 /* old-style names */
1939                 attr_strings.create_time_attr = NULL;
1940                 attr_strings.access_time_attr = "system.dos_attr.A_TIME";
1941                 attr_strings.write_time_attr = "system.dos_attr.M_TIME";
1942                 attr_strings.change_time_attr = "system.dos_attr.C_TIME";
1943         }
1944
1945         /*
1946          * Are they asking to set a DOS attribute?
1947          */
1948         if (strcasecmp_m(name, "system.dos_attr.*") == 0 ||
1949             strcasecmp_m(name, "system.dos_attr.mode") == 0 ||
1950             (attr_strings.create_time_attr != NULL &&
1951              strcasecmp_m(name, attr_strings.create_time_attr) == 0) ||
1952             strcasecmp_m(name, attr_strings.access_time_attr) == 0 ||
1953             strcasecmp_m(name, attr_strings.write_time_attr) == 0 ||
1954             strcasecmp_m(name, attr_strings.change_time_attr) == 0) {
1955
1956                 /* get a DOS Attribute Descriptor with current attributes */
1957                 dad = dos_attr_query(context, talloc_tos(), path, srv);
1958                 if (dad) {
1959                         char *namevalue =
1960                                 talloc_asprintf(talloc_tos(), "%s:%s",
1961                                                 name+16, (const char *) value);
1962                         if (! namevalue) {
1963                                 errno = ENOMEM;
1964                                 ret = -1;
1965                         } else {
1966                                 /* Overwrite old with provided new params */
1967                                 dos_attr_parse(context, dad, srv, namevalue);
1968
1969                                 /* Set the new DOS attributes */
1970                                 ret2 = SMBC_setatr(context, srv, path,
1971                                                    dad->create_time,
1972                                                    dad->access_time,
1973                                                    dad->write_time,
1974                                                    dad->change_time,
1975                                                    dad->mode);
1976
1977                                 /* ret2 has True (success) / False (failure) */
1978                                 if (ret2) {
1979                                         ret = 0;
1980                                 } else {
1981                                         ret = -1;
1982                                 }
1983                         }
1984                 } else {
1985                         ret = -1;
1986                 }
1987
1988                 TALLOC_FREE(frame);
1989                 return ret;
1990         }
1991
1992         /* Unsupported attribute name */
1993         errno = EINVAL;
1994         TALLOC_FREE(frame);
1995         return -1;
1996 }
1997
1998 int
1999 SMBC_getxattr_ctx(SMBCCTX *context,
2000                   const char *fname,
2001                   const char *name,
2002                   const void *value,
2003                   size_t size)
2004 {
2005         int ret;
2006         SMBCSRV *srv = NULL;
2007         SMBCSRV *ipc_srv = NULL;
2008         char *server = NULL;
2009         char *share = NULL;
2010         char *user = NULL;
2011         char *password = NULL;
2012         char *workgroup = NULL;
2013         char *path = NULL;
2014         struct {
2015                 const char * create_time_attr;
2016                 const char * access_time_attr;
2017                 const char * write_time_attr;
2018                 const char * change_time_attr;
2019         } attr_strings;
2020         TALLOC_CTX *frame = talloc_stackframe();
2021
2022         if (!context || !context->internal->initialized) {
2023                 errno = EINVAL;  /* Best I can think of ... */
2024                 TALLOC_FREE(frame);
2025                 return -1;
2026         }
2027
2028         if (!fname) {
2029                 errno = EINVAL;
2030                 TALLOC_FREE(frame);
2031                 return -1;
2032         }
2033
2034         DEBUG(4, ("smbc_getxattr(%s, %s)\n", fname, name));
2035
2036         if (SMBC_parse_path(frame,
2037                             context,
2038                             fname,
2039                             &workgroup,
2040                             &server,
2041                             &share,
2042                             &path,
2043                             &user,
2044                             &password,
2045                             NULL)) {
2046                 errno = EINVAL;
2047                 TALLOC_FREE(frame);
2048                 return -1;
2049         }
2050
2051         if (!user || user[0] == (char)0) {
2052                 user = talloc_strdup(frame, smbc_getUser(context));
2053                 if (!user) {
2054                         errno = ENOMEM;
2055                         TALLOC_FREE(frame);
2056                         return -1;
2057                 }
2058         }
2059
2060         srv = SMBC_server(frame, context, True,
2061                           server, share, &workgroup, &user, &password);
2062         if (!srv) {
2063                 TALLOC_FREE(frame);
2064                 return -1;  /* errno set by SMBC_server */
2065         }
2066
2067         if (! srv->no_nt_session) {
2068                 ipc_srv = SMBC_attr_server(frame, context, server, share,
2069                                            &workgroup, &user, &password);
2070                 if (! ipc_srv) {
2071                         srv->no_nt_session = True;
2072                 }
2073         } else {
2074                 ipc_srv = NULL;
2075         }
2076
2077         /* Determine whether to use old-style or new-style attribute names */
2078         if (context->internal->full_time_names) {
2079                 /* new-style names */
2080                 attr_strings.create_time_attr = "system.dos_attr.CREATE_TIME";
2081                 attr_strings.access_time_attr = "system.dos_attr.ACCESS_TIME";
2082                 attr_strings.write_time_attr = "system.dos_attr.WRITE_TIME";
2083                 attr_strings.change_time_attr = "system.dos_attr.CHANGE_TIME";
2084         } else {
2085                 /* old-style names */
2086                 attr_strings.create_time_attr = NULL;
2087                 attr_strings.access_time_attr = "system.dos_attr.A_TIME";
2088                 attr_strings.write_time_attr = "system.dos_attr.M_TIME";
2089                 attr_strings.change_time_attr = "system.dos_attr.C_TIME";
2090         }
2091
2092         /* Are they requesting a supported attribute? */
2093         if (strcasecmp_m(name, "system.*") == 0 ||
2094             strncasecmp_m(name, "system.*!", 9) == 0 ||
2095             strcasecmp_m(name, "system.*+") == 0 ||
2096             strncasecmp_m(name, "system.*+!", 10) == 0 ||
2097             strcasecmp_m(name, "system.nt_sec_desc.*") == 0 ||
2098             strncasecmp_m(name, "system.nt_sec_desc.*!", 21) == 0 ||
2099             strcasecmp_m(name, "system.nt_sec_desc.*+") == 0 ||
2100             strncasecmp_m(name, "system.nt_sec_desc.*+!", 22) == 0 ||
2101             strcasecmp_m(name, "system.nt_sec_desc.revision") == 0 ||
2102             strcasecmp_m(name, "system.nt_sec_desc.owner") == 0 ||
2103             strcasecmp_m(name, "system.nt_sec_desc.owner+") == 0 ||
2104             strcasecmp_m(name, "system.nt_sec_desc.group") == 0 ||
2105             strcasecmp_m(name, "system.nt_sec_desc.group+") == 0 ||
2106             strncasecmp_m(name, "system.nt_sec_desc.acl", 22) == 0 ||
2107             strncasecmp_m(name, "system.nt_sec_desc.acl+", 23) == 0 ||
2108             strcasecmp_m(name, "system.dos_attr.*") == 0 ||
2109             strncasecmp_m(name, "system.dos_attr.*!", 18) == 0 ||
2110             strcasecmp_m(name, "system.dos_attr.mode") == 0 ||
2111             strcasecmp_m(name, "system.dos_attr.size") == 0 ||
2112             (attr_strings.create_time_attr != NULL &&
2113              strcasecmp_m(name, attr_strings.create_time_attr) == 0) ||
2114             strcasecmp_m(name, attr_strings.access_time_attr) == 0 ||
2115             strcasecmp_m(name, attr_strings.write_time_attr) == 0 ||
2116             strcasecmp_m(name, attr_strings.change_time_attr) == 0 ||
2117             strcasecmp_m(name, "system.dos_attr.inode") == 0) {
2118
2119                 /* Yup. */
2120                 const char *filename = name;
2121                 ret = cacl_get(context, talloc_tos(), srv,
2122                                ipc_srv == NULL ? NULL : ipc_srv->cli,
2123                                &ipc_srv->pol, path,
2124                                filename,
2125                                discard_const_p(char, value),
2126                                size);
2127                 if (ret < 0 && errno == 0) {
2128                         errno = SMBC_errno(context, srv->cli);
2129                 }
2130                 TALLOC_FREE(frame);
2131                 return ret;
2132         }
2133
2134         /* Unsupported attribute name */
2135         errno = EINVAL;
2136         TALLOC_FREE(frame);
2137         return -1;
2138 }
2139
2140
2141 int
2142 SMBC_removexattr_ctx(SMBCCTX *context,
2143                      const char *fname,
2144                      const char *name)
2145 {
2146         int ret;
2147         SMBCSRV *srv = NULL;
2148         SMBCSRV *ipc_srv = NULL;
2149         char *server = NULL;
2150         char *share = NULL;
2151         char *user = NULL;
2152         char *password = NULL;
2153         char *workgroup = NULL;
2154         char *path = NULL;
2155         TALLOC_CTX *frame = talloc_stackframe();
2156
2157         if (!context || !context->internal->initialized) {
2158                 errno = EINVAL;  /* Best I can think of ... */
2159                 TALLOC_FREE(frame);
2160                 return -1;
2161         }
2162
2163         if (!fname) {
2164                 errno = EINVAL;
2165                 TALLOC_FREE(frame);
2166                 return -1;
2167         }
2168
2169         DEBUG(4, ("smbc_removexattr(%s, %s)\n", fname, name));
2170
2171         if (SMBC_parse_path(frame,
2172                             context,
2173                             fname,
2174                             &workgroup,
2175                             &server,
2176                             &share,
2177                             &path,
2178                             &user,
2179                             &password,
2180                             NULL)) {
2181                 errno = EINVAL;
2182                 TALLOC_FREE(frame);
2183                 return -1;
2184         }
2185
2186         if (!user || user[0] == (char)0) {
2187                 user = talloc_strdup(frame, smbc_getUser(context));
2188                 if (!user) {
2189                         errno = ENOMEM;
2190                         TALLOC_FREE(frame);
2191                         return -1;
2192                 }
2193         }
2194
2195         srv = SMBC_server(frame, context, True,
2196                           server, share, &workgroup, &user, &password);
2197         if (!srv) {
2198                 TALLOC_FREE(frame);
2199                 return -1;  /* errno set by SMBC_server */
2200         }
2201
2202         if (! srv->no_nt_session) {
2203                 ipc_srv = SMBC_attr_server(frame, context, server, share,
2204                                            &workgroup, &user, &password);
2205                 if (! ipc_srv) {
2206                         srv->no_nt_session = True;
2207                 }
2208         } else {
2209                 ipc_srv = NULL;
2210         }
2211
2212         if (! ipc_srv) {
2213                 TALLOC_FREE(frame);
2214                 return -1; /* errno set by SMBC_attr_server */
2215         }
2216
2217         /* Are they asking to set the entire ACL? */
2218         if (strcasecmp_m(name, "system.nt_sec_desc.*") == 0 ||
2219             strcasecmp_m(name, "system.nt_sec_desc.*+") == 0) {
2220
2221                 /* Yup. */
2222                 ret = cacl_set(context, talloc_tos(), srv->cli,
2223                                ipc_srv->cli, &ipc_srv->pol, path,
2224                                NULL, SMBC_XATTR_MODE_REMOVE_ALL, 0);
2225                 TALLOC_FREE(frame);
2226                 return ret;
2227         }
2228
2229         /*
2230          * Are they asking to remove one or more spceific security descriptor
2231          * attributes?
2232          */
2233         if (strcasecmp_m(name, "system.nt_sec_desc.revision") == 0 ||
2234             strcasecmp_m(name, "system.nt_sec_desc.owner") == 0 ||
2235             strcasecmp_m(name, "system.nt_sec_desc.owner+") == 0 ||
2236             strcasecmp_m(name, "system.nt_sec_desc.group") == 0 ||
2237             strcasecmp_m(name, "system.nt_sec_desc.group+") == 0 ||
2238             strncasecmp_m(name, "system.nt_sec_desc.acl", 22) == 0 ||
2239             strncasecmp_m(name, "system.nt_sec_desc.acl+", 23) == 0) {
2240
2241                 /* Yup. */
2242                 ret = cacl_set(context, talloc_tos(), srv->cli,
2243                                ipc_srv->cli, &ipc_srv->pol, path,
2244                                discard_const_p(char, name) + 19,
2245                                SMBC_XATTR_MODE_REMOVE, 0);
2246                 TALLOC_FREE(frame);
2247                 return ret;
2248         }
2249
2250         /* Unsupported attribute name */
2251         errno = EINVAL;
2252         TALLOC_FREE(frame);
2253         return -1;
2254 }
2255
2256 int
2257 SMBC_listxattr_ctx(SMBCCTX *context,
2258                    const char *fname,
2259                    char *list,
2260                    size_t size)
2261 {
2262         /*
2263          * This isn't quite what listxattr() is supposed to do.  This returns
2264          * the complete set of attribute names, always, rather than only those
2265          * attribute names which actually exist for a file.  Hmmm...
2266          */
2267         size_t retsize;
2268         const char supported_old[] =
2269                 "system.*\0"
2270                 "system.*+\0"
2271                 "system.nt_sec_desc.revision\0"
2272                 "system.nt_sec_desc.owner\0"
2273                 "system.nt_sec_desc.owner+\0"
2274                 "system.nt_sec_desc.group\0"
2275                 "system.nt_sec_desc.group+\0"
2276                 "system.nt_sec_desc.acl.*\0"
2277                 "system.nt_sec_desc.acl\0"
2278                 "system.nt_sec_desc.acl+\0"
2279                 "system.nt_sec_desc.*\0"
2280                 "system.nt_sec_desc.*+\0"
2281                 "system.dos_attr.*\0"
2282                 "system.dos_attr.mode\0"
2283                 "system.dos_attr.c_time\0"
2284                 "system.dos_attr.a_time\0"
2285                 "system.dos_attr.m_time\0"
2286                 ;
2287         const char supported_new[] =
2288                 "system.*\0"
2289                 "system.*+\0"
2290                 "system.nt_sec_desc.revision\0"
2291                 "system.nt_sec_desc.owner\0"
2292                 "system.nt_sec_desc.owner+\0"
2293                 "system.nt_sec_desc.group\0"
2294                 "system.nt_sec_desc.group+\0"
2295                 "system.nt_sec_desc.acl.*\0"
2296                 "system.nt_sec_desc.acl\0"
2297                 "system.nt_sec_desc.acl+\0"
2298                 "system.nt_sec_desc.*\0"
2299                 "system.nt_sec_desc.*+\0"
2300                 "system.dos_attr.*\0"
2301                 "system.dos_attr.mode\0"
2302                 "system.dos_attr.create_time\0"
2303                 "system.dos_attr.access_time\0"
2304                 "system.dos_attr.write_time\0"
2305                 "system.dos_attr.change_time\0"
2306                 ;
2307         const char * supported;
2308
2309         if (context->internal->full_time_names) {
2310                 supported = supported_new;
2311                 retsize = sizeof(supported_new);
2312         } else {
2313                 supported = supported_old;
2314                 retsize = sizeof(supported_old);
2315         }
2316
2317         if (size == 0) {
2318                 return retsize;
2319         }
2320
2321         if (retsize > size) {
2322                 errno = ERANGE;
2323                 return -1;
2324         }
2325
2326         /* this can't be strcpy() because there are embedded null characters */
2327         memcpy(list, supported, retsize);
2328         return retsize;
2329 }