libcli/security/util_sid.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Samba utility functions
   4    Copyright (C) Andrew Tridgell                1992-1998
   5    Copyright (C) Luke Kenneth Caseson Leighton  1998-1999
   6    Copyright (C) Jeremy Allison                 1999
   7    Copyright (C) Stefan (metze) Metzmacher      2002
   8    Copyright (C) Simo Sorce                     2002
   9    Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2005
  10    Copyright (C) Andrew Bartlett                2010
  11
  12    This program is free software; you can redistribute it and/or modify
  13    it under the terms of the GNU General Public License as published by
  14    the Free Software Foundation; either version 3 of the License, or
  15    (at your option) any later version.
  16
  17    This program is distributed in the hope that it will be useful,
  18    but WITHOUT ANY WARRANTY; without even the implied warranty of
  19    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20    GNU General Public License for more details.
  21
  22    You should have received a copy of the GNU General Public License
  23    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  24 */
  25
  26 #include "includes.h"
  27 #include "../librpc/gen_ndr/ndr_security.h"
  28 #include "../librpc/gen_ndr/netlogon.h"
  29 #include "../libcli/security/security.h"
  30
  31 #undef strcasecmp
  32 #undef strncasecmp
  33
  34 /*
  35  * Some useful sids, more well known sids can be found at
  36  * http://support.microsoft.com/kb/243330/EN-US/
  37  */
  38
  39
  40 /* S-1-1 */
  41 const struct dom_sid global_sid_World_Domain =               /* Everyone domain */
  42 { 1, 0, {0,0,0,0,0,1}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
  43 /* S-1-1-0 */
  44 const struct dom_sid global_sid_World =                      /* Everyone */
  45 { 1, 1, {0,0,0,0,0,1}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
  46 /* S-1-2 */
  47 const struct dom_sid global_sid_Local_Authority =            /* Local Authority */
  48 { 1, 0, {0,0,0,0,0,2}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
  49 /* S-1-3 */
  50 const struct dom_sid global_sid_Creator_Owner_Domain =       /* Creator Owner domain */
  51 { 1, 0, {0,0,0,0,0,3}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
  52 /* S-1-5 */
  53 const struct dom_sid global_sid_NT_Authority =                  /* NT Authority */
  54 { 1, 0, {0,0,0,0,0,5}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
  55 /* S-1-5-18 */
  56 const struct dom_sid global_sid_System =                        /* System */
  57 { 1, 1, {0,0,0,0,0,5}, {18,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
  58 /* S-1-0-0 */
  59 const struct dom_sid global_sid_NULL =                          /* NULL sid */
  60 { 1, 1, {0,0,0,0,0,0}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
  61 /* S-1-5-11 */
  62 const struct dom_sid global_sid_Authenticated_Users =   /* All authenticated rids */
  63 { 1, 1, {0,0,0,0,0,5}, {11,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
  64 #if 0
  65 /* for documentation S-1-5-12 */
  66 const struct dom_sid global_sid_Restriced =                     /* Restriced Code */
  67 { 1, 1, {0,0,0,0,0,5}, {12,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
  68 #endif
  69
  70 /* S-1-18 */
  71 const struct dom_sid global_sid_Asserted_Identity =       /* Asserted Identity */
  72 { 1, 0, {0,0,0,0,0,18}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
  73 /* S-1-18-1 */
  74 const struct dom_sid global_sid_Asserted_Identity_Service =     /* Asserted Identity Service */
  75 { 1, 1, {0,0,0,0,0,18}, {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
  76 /* S-1-18-2 */
  77 const struct dom_sid global_sid_Asserted_Identity_Authentication_Authority =    /* Asserted Identity Authentication Authority */
  78 { 1, 1, {0,0,0,0,0,18}, {2,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
  79
  80 /* S-1-5-2 */
  81 const struct dom_sid global_sid_Network =                       /* Network rids */
  82 { 1, 1, {0,0,0,0,0,5}, {2,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
  83
  84 /* S-1-3 */
  85 const struct dom_sid global_sid_Creator_Owner =         /* Creator Owner */
  86 { 1, 1, {0,0,0,0,0,3}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
  87 /* S-1-3-1 */
  88 const struct dom_sid global_sid_Creator_Group =         /* Creator Group */
  89 { 1, 1, {0,0,0,0,0,3}, {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
  90 /* S-1-3-4 */
  91 const struct dom_sid global_sid_Owner_Rights =          /* Owner Rights */
  92 { 1, 1, {0,0,0,0,0,3}, {4,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
  93 /* S-1-5-7 */
  94 const struct dom_sid global_sid_Anonymous =                     /* Anonymous login */
  95 { 1, 1, {0,0,0,0,0,5}, {7,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
  96 /* S-1-5-9 */
  97 const struct dom_sid global_sid_Enterprise_DCs =                /* Enterprise DCs */
  98 { 1, 1, {0,0,0,0,0,5}, {9,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
  99 /* S-1-5-32 */
 100 const struct dom_sid global_sid_Builtin =                       /* Local well-known domain */
 101 { 1, 1, {0,0,0,0,0,5}, {32,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
 102 /* S-1-5-32-544 */
 103 const struct dom_sid global_sid_Builtin_Administrators =        /* Builtin administrators */
 104 { 1, 2, {0,0,0,0,0,5}, {32,544,0,0,0,0,0,0,0,0,0,0,0,0,0}};
 105 /* S-1-5-32-545 */
 106 const struct dom_sid global_sid_Builtin_Users =         /* Builtin users */
 107 { 1, 2, {0,0,0,0,0,5}, {32,545,0,0,0,0,0,0,0,0,0,0,0,0,0}};
 108 /* S-1-5-32-546 */
 109 const struct dom_sid global_sid_Builtin_Guests =                /* Builtin guest users */
 110 { 1, 2, {0,0,0,0,0,5}, {32,546,0,0,0,0,0,0,0,0,0,0,0,0,0}};
 111 /* S-1-5-32-547 */
 112 const struct dom_sid global_sid_Builtin_Power_Users =   /* Builtin power users */
 113 { 1, 2, {0,0,0,0,0,5}, {32,547,0,0,0,0,0,0,0,0,0,0,0,0,0}};
 114 /* S-1-5-32-548 */
 115 const struct dom_sid global_sid_Builtin_Account_Operators =     /* Builtin account operators */
 116 { 1, 2, {0,0,0,0,0,5}, {32,548,0,0,0,0,0,0,0,0,0,0,0,0,0}};
 117 /* S-1-5-32-549 */
 118 const struct dom_sid global_sid_Builtin_Server_Operators =      /* Builtin server operators */
 119 { 1, 2, {0,0,0,0,0,5}, {32,549,0,0,0,0,0,0,0,0,0,0,0,0,0}};
 120 /* S-1-5-32-550 */
 121 const struct dom_sid global_sid_Builtin_Print_Operators =       /* Builtin print operators */
 122 { 1, 2, {0,0,0,0,0,5}, {32,550,0,0,0,0,0,0,0,0,0,0,0,0,0}};
 123 /* S-1-5-32-551 */
 124 const struct dom_sid global_sid_Builtin_Backup_Operators =      /* Builtin backup operators */
 125 { 1, 2, {0,0,0,0,0,5}, {32,551,0,0,0,0,0,0,0,0,0,0,0,0,0}};
 126 /* S-1-5-32-552 */
 127 const struct dom_sid global_sid_Builtin_Replicator =            /* Builtin replicator */
 128 { 1, 2, {0,0,0,0,0,5}, {32,552,0,0,0,0,0,0,0,0,0,0,0,0,0}};
 129 /* S-1-5-32-554 */
 130 const struct dom_sid global_sid_Builtin_PreWin2kAccess =        /* Builtin pre win2k access */
 131 { 1, 2, {0,0,0,0,0,5}, {32,554,0,0,0,0,0,0,0,0,0,0,0,0,0}};
 132
 133 /* S-1-22-1 */
 134 const struct dom_sid global_sid_Unix_Users =                    /* Unmapped Unix users */
 135 { 1, 1, {0,0,0,0,0,22}, {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
 136 /* S-1-22-2 */
 137 const struct dom_sid global_sid_Unix_Groups =                   /* Unmapped Unix groups */
 138 { 1, 1, {0,0,0,0,0,22}, {2,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
 139
 140 /*
 141  * http://technet.microsoft.com/en-us/library/hh509017(v=ws.10).aspx
 142  */
 143 /* S-1-5-88 */
 144 const struct dom_sid global_sid_Unix_NFS =             /* MS NFS and Apple style */
 145 { 1, 1, {0,0,0,0,0,5}, {88,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
 146 /* S-1-5-88-1 */
 147 const struct dom_sid global_sid_Unix_NFS_Users =                /* Unix uid, MS NFS and Apple style */
 148 { 1, 2, {0,0,0,0,0,5}, {88,1,0,0,0,0,0,0,0,0,0,0,0,0,0}};
 149 /* S-1-5-88-2 */
 150 const struct dom_sid global_sid_Unix_NFS_Groups =               /* Unix gid, MS NFS and Apple style */
 151 { 1, 2, {0,0,0,0,0,5}, {88,2,0,0,0,0,0,0,0,0,0,0,0,0,0}};
 152 /* S-1-5-88-3 */
 153 const struct dom_sid global_sid_Unix_NFS_Mode =                 /* Unix mode */
 154 { 1, 2, {0,0,0,0,0,5}, {88,3,0,0,0,0,0,0,0,0,0,0,0,0,0}};
 155 /* Unused, left here for documentary purposes */
 156 #if 0
 157 const struct dom_sid global_sid_Unix_NFS_Other =                /* Unix other, MS NFS and Apple style */
 158 { 1, 2, {0,0,0,0,0,5}, {88,4,0,0,0,0,0,0,0,0,0,0,0,0,0}};
 159 #endif
 160
 161 /* Information passing via security token */
 162 const struct dom_sid global_sid_Samba_SMB3 =
 163 {1, 1, {0,0,0,0,0,22}, {1397571891, }};
 164
 165 /* Unused, left here for documentary purposes */
 166 #if 0
 167 #define SECURITY_NULL_SID_AUTHORITY    0
 168 #define SECURITY_WORLD_SID_AUTHORITY   1
 169 #define SECURITY_LOCAL_SID_AUTHORITY   2
 170 #define SECURITY_CREATOR_SID_AUTHORITY 3
 171 #define SECURITY_NT_AUTHORITY          5
 172 #endif
 173
 174 static struct dom_sid system_sid_array[1] =
 175 { { 1, 1, {0,0,0,0,0,5}, {18,0,0,0,0,0,0,0,0,0,0,0,0,0,0}} };
 176 static const struct security_token system_token = {
 177         .num_sids       = ARRAY_SIZE(system_sid_array),
 178         .sids           = system_sid_array,
 179         .privilege_mask = SE_ALL_PRIVS
 180 };
 181
 182 /****************************************************************************
 183  Lookup string names for SID types.
 184 ****************************************************************************/
 185
 186 static const struct {
 187         enum lsa_SidType sid_type;
 188         const char *string;
 189 } sid_name_type[] = {
 190         {SID_NAME_USE_NONE, "None"},
 191         {SID_NAME_USER, "User"},
 192         {SID_NAME_DOM_GRP, "Domain Group"},
 193         {SID_NAME_DOMAIN, "Domain"},
 194         {SID_NAME_ALIAS, "Local Group"},
 195         {SID_NAME_WKN_GRP, "Well-known Group"},
 196         {SID_NAME_DELETED, "Deleted Account"},
 197         {SID_NAME_INVALID, "Invalid Account"},
 198         {SID_NAME_UNKNOWN, "UNKNOWN"},
 199         {SID_NAME_COMPUTER, "Computer"},
 200         {SID_NAME_LABEL, "Mandatory Label"}
 201 };
 202
 203 const char *sid_type_lookup(uint32_t sid_type)
 204 {
 205         size_t i;
 206
 207         /* Look through list */
 208         for (i=0; i < ARRAY_SIZE(sid_name_type); i++) {
 209                 if (sid_name_type[i].sid_type == sid_type) {
 210                         return sid_name_type[i].string;
 211                 }
 212         }
 213
 214         /* Default return */
 215         return "SID *TYPE* is INVALID";
 216 }
 217
 218 /**************************************************************************
 219  Create the SYSTEM token.
 220 ***************************************************************************/
 221
 222 const struct security_token *get_system_token(void)
 223 {
 224         return &system_token;
 225 }
 226
 227 bool sid_compose(struct dom_sid *dst, const struct dom_sid *domain_sid, uint32_t rid)
 228 {
 229         sid_copy(dst, domain_sid);
 230         return sid_append_rid(dst, rid);
 231 }
 232
 233 /*****************************************************************
 234  Removes the last rid from the end of a sid
 235 *****************************************************************/
 236
 237 bool sid_split_rid(struct dom_sid *sid, uint32_t *rid)
 238 {
 239         if (sid->num_auths > 0) {
 240                 sid->num_auths--;
 241                 if (rid != NULL) {
 242                         *rid = sid->sub_auths[sid->num_auths];
 243                 }
 244                 return true;
 245         }
 246         return false;
 247 }
 248
 249 /*****************************************************************
 250  Return the last rid from the end of a sid
 251 *****************************************************************/
 252
 253 bool sid_peek_rid(const struct dom_sid *sid, uint32_t *rid)
 254 {
 255         if (!sid || !rid)
 256                 return false;
 257
 258         if (sid->num_auths > 0) {
 259                 *rid = sid->sub_auths[sid->num_auths - 1];
 260                 return true;
 261         }
 262         return false;
 263 }
 264
 265 /*****************************************************************
 266  Return the last rid from the end of a sid
 267  and check the sid against the exp_dom_sid
 268 *****************************************************************/
 269
 270 bool sid_peek_check_rid(const struct dom_sid *exp_dom_sid, const struct dom_sid *sid, uint32_t *rid)
 271 {
 272         if (!exp_dom_sid || !sid || !rid)
 273                 return false;
 274
 275         if (sid->num_auths != (exp_dom_sid->num_auths+1)) {
 276                 return false;
 277         }
 278
 279         if (sid_compare_domain(exp_dom_sid, sid)!=0){
 280                 *rid=(-1);
 281                 return false;
 282         }
 283
 284         return sid_peek_rid(sid, rid);
 285 }
 286
 287 /*****************************************************************
 288  Copies a sid
 289 *****************************************************************/
 290
 291 void sid_copy(struct dom_sid *dst, const struct dom_sid *src)
 292 {
 293         int i;
 294
 295         *dst = (struct dom_sid) {
 296                 .sid_rev_num = src->sid_rev_num,
 297                 .num_auths = src->num_auths,
 298         };
 299
 300         memcpy(&dst->id_auth[0], &src->id_auth[0], sizeof(src->id_auth));
 301
 302         for (i = 0; i < src->num_auths; i++)
 303                 dst->sub_auths[i] = src->sub_auths[i];
 304 }
 305
 306 /*****************************************************************
 307  Parse a on-the-wire SID to a struct dom_sid.
 308 *****************************************************************/
 309
 310 ssize_t sid_parse(const uint8_t *inbuf, size_t len, struct dom_sid *sid)
 311 {
 312         DATA_BLOB in = data_blob_const(inbuf, len);
 313         enum ndr_err_code ndr_err;
 314
 315         ndr_err = ndr_pull_struct_blob_all(
 316                 &in, NULL, sid, (ndr_pull_flags_fn_t)ndr_pull_dom_sid);
 317         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 318                 return -1;
 319         }
 320         return ndr_size_dom_sid(sid, 0);
 321 }
 322
 323 /*****************************************************************
 324  See if 2 SIDs are in the same domain
 325  this just compares the leading sub-auths
 326 *****************************************************************/
 327
 328 int sid_compare_domain(const struct dom_sid *sid1, const struct dom_sid *sid2)
 329 {
 330         int n, i;
 331
 332         n = MIN(sid1->num_auths, sid2->num_auths);
 333
 334         for (i = n-1; i >= 0; --i)
 335                 if (sid1->sub_auths[i] != sid2->sub_auths[i])
 336                         return sid1->sub_auths[i] - sid2->sub_auths[i];
 337
 338         return dom_sid_compare_auth(sid1, sid2);
 339 }
 340
 341 /********************************************************************
 342  Add SID to an array SIDs
 343 ********************************************************************/
 344
 345 NTSTATUS add_sid_to_array(TALLOC_CTX *mem_ctx, const struct dom_sid *sid,
 346                           struct dom_sid **sids, uint32_t *num)
 347 {
 348         struct dom_sid *tmp;
 349
 350         if ((*num) == UINT32_MAX) {
 351                 return NT_STATUS_INTEGER_OVERFLOW;
 352         }
 353
 354         tmp = talloc_realloc(mem_ctx, *sids, struct dom_sid, (*num)+1);
 355         if (tmp == NULL) {
 356                 *num = 0;
 357                 return NT_STATUS_NO_MEMORY;
 358         }
 359         *sids = tmp;
 360
 361         sid_copy(&((*sids)[*num]), sid);
 362         *num += 1;
 363
 364         return NT_STATUS_OK;
 365 }
 366
 367
 368 /********************************************************************
 369  Add SID to an array SIDs ensuring that it is not already there
 370 ********************************************************************/
 371
 372 NTSTATUS add_sid_to_array_unique(TALLOC_CTX *mem_ctx, const struct dom_sid *sid,
 373                                  struct dom_sid **sids, uint32_t *num_sids)
 374 {
 375         uint32_t i;
 376
 377         for (i=0; i<(*num_sids); i++) {
 378                 if (dom_sid_equal(sid, &(*sids)[i])) {
 379                         return NT_STATUS_OK;
 380                 }
 381         }
 382
 383         return add_sid_to_array(mem_ctx, sid, sids, num_sids);
 384 }
 385
 386 /********************************************************************
 387  Remove SID from an array
 388 ********************************************************************/
 389
 390 void del_sid_from_array(const struct dom_sid *sid, struct dom_sid **sids,
 391                         uint32_t *num)
 392 {
 393         struct dom_sid *sid_list = *sids;
 394         uint32_t i;
 395
 396         for ( i=0; i<*num; i++ ) {
 397
 398                 /* if we find the SID, then decrement the count
 399                    and break out of the loop */
 400
 401                 if (dom_sid_equal(sid, &sid_list[i])) {
 402                         *num -= 1;
 403                         break;
 404                 }
 405         }
 406
 407         /* This loop will copy the remainder of the array
 408            if i < num of sids in the array */
 409
 410         for ( ; i<*num; i++ ) {
 411                 sid_copy( &sid_list[i], &sid_list[i+1] );
 412         }
 413
 414         return;
 415 }
 416
 417 bool add_rid_to_array_unique(TALLOC_CTX *mem_ctx,
 418                              uint32_t rid, uint32_t **pp_rids, size_t *p_num)
 419 {
 420         size_t i;
 421
 422         for (i=0; i<*p_num; i++) {
 423                 if ((*pp_rids)[i] == rid)
 424                         return true;
 425         }
 426
 427         *pp_rids = talloc_realloc(mem_ctx, *pp_rids, uint32_t, *p_num+1);
 428
 429         if (*pp_rids == NULL) {
 430                 *p_num = 0;
 431                 return false;
 432         }
 433
 434         (*pp_rids)[*p_num] = rid;
 435         *p_num += 1;
 436         return true;
 437 }
 438
 439 bool is_null_sid(const struct dom_sid *sid)
 440 {
 441         const struct dom_sid null_sid = {0};
 442         return dom_sid_equal(sid, &null_sid);
 443 }
 444
 445 /*
 446  * See [MS-LSAT] 3.1.1.1.1 Predefined Translation Database and Corresponding View
 447  */
 448 struct predefined_name_mapping {
 449         const char *name;
 450         enum lsa_SidType type;
 451         struct dom_sid sid;
 452 };
 453
 454 struct predefined_domain_mapping {
 455         const char *domain;
 456         struct dom_sid sid;
 457         size_t num_names;
 458         const struct predefined_name_mapping *names;
 459 };
 460
 461 /* S-1-${AUTHORITY} */
 462 #define _SID0(authority) \
 463         { 1, 0, {0,0,0,0,0,authority}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}}
 464 /* S-1-${AUTHORITY}-${SUB1} */
 465 #define _SID1(authority,sub1) \
 466         { 1, 1, {0,0,0,0,0,authority}, {sub1,0,0,0,0,0,0,0,0,0,0,0,0,0,0}}
 467 /* S-1-${AUTHORITY}-${SUB1}-${SUB2} */
 468 #define _SID2(authority,sub1,sub2) \
 469         { 1, 2, {0,0,0,0,0,authority}, {sub1,sub2,0,0,0,0,0,0,0,0,0,0,0,0,0}}
 470
 471 /*
 472  * S-1-0
 473  */
 474 static const struct predefined_name_mapping predefined_names_S_1_0[] = {
 475         {
 476                 .name = "NULL SID",
 477                 .type = SID_NAME_WKN_GRP,
 478                 .sid = _SID1(0, 0), /* S-1-0-0 */
 479         },
 480 };
 481
 482 /*
 483  * S-1-1
 484  */
 485 static const struct predefined_name_mapping predefined_names_S_1_1[] = {
 486         {
 487                 .name = "Everyone",
 488                 .type = SID_NAME_WKN_GRP,
 489                 .sid = _SID1(1, 0), /* S-1-1-0 */
 490         },
 491 };
 492
 493 /*
 494  * S-1-2
 495  */
 496 static const struct predefined_name_mapping predefined_names_S_1_2[] = {
 497         {
 498                 .name = "LOCAL",
 499                 .type = SID_NAME_WKN_GRP,
 500                 .sid = _SID1(2, 0), /* S-1-2-0 */
 501         },
 502 };
 503
 504 /*
 505  * S-1-3
 506  */
 507 static const struct predefined_name_mapping predefined_names_S_1_3[] = {
 508         {
 509                 .name = "CREATOR OWNER",
 510                 .type = SID_NAME_WKN_GRP,
 511                 .sid = _SID1(3, 0), /* S-1-3-0 */
 512         },
 513         {
 514                 .name = "CREATOR GROUP",
 515                 .type = SID_NAME_WKN_GRP,
 516                 .sid = _SID1(3, 1), /* S-1-3-1 */
 517         },
 518         {
 519                 .name = "CREATOR OWNER SERVER",
 520                 .type = SID_NAME_WKN_GRP,
 521                 .sid = _SID1(3, 0), /* S-1-3-2 */
 522         },
 523         {
 524                 .name = "CREATOR GROUP SERVER",
 525                 .type = SID_NAME_WKN_GRP,
 526                 .sid = _SID1(3, 1), /* S-1-3-3 */
 527         },
 528         {
 529                 .name = "OWNER RIGHTS",
 530                 .type = SID_NAME_WKN_GRP,
 531                 .sid = _SID1(3, 4), /* S-1-3-4 */
 532         },
 533 };
 534
 535 /*
 536  * S-1-5 only 'NT Pseudo Domain'
 537  */
 538 static const struct predefined_name_mapping predefined_names_S_1_5p[] = {
 539         {
 540                 .name = "NT Pseudo Domain",
 541                 .type = SID_NAME_DOMAIN,
 542                 .sid = _SID0(5), /* S-1-5 */
 543         },
 544 };
 545
 546 /*
 547  * S-1-5 'NT AUTHORITY'
 548  */
 549 static const struct predefined_name_mapping predefined_names_S_1_5a[] = {
 550         {
 551                 .name = "DIALUP",
 552                 .type = SID_NAME_WKN_GRP,
 553                 .sid = _SID1(5, 1), /* S-1-5-1 */
 554         },
 555         {
 556                 .name = "NETWORK",
 557                 .type = SID_NAME_WKN_GRP,
 558                 .sid = _SID1(5, 2), /* S-1-5-2 */
 559         },
 560         {
 561                 .name = "BATCH",
 562                 .type = SID_NAME_WKN_GRP,
 563                 .sid = _SID1(5, 3), /* S-1-5-3 */
 564         },
 565         {
 566                 .name = "INTERACTIVE",
 567                 .type = SID_NAME_WKN_GRP,
 568                 .sid = _SID1(5, 4), /* S-1-5-4 */
 569         },
 570         {
 571                 .name = "SERVICE",
 572                 .type = SID_NAME_WKN_GRP,
 573                 .sid = _SID1(5, 6), /* S-1-5-6 */
 574         },
 575         {
 576                 .name = "ANONYMOUS LOGON",
 577                 .type = SID_NAME_WKN_GRP,
 578                 .sid = _SID1(5, 7), /* S-1-5-7 */
 579         },
 580         {
 581                 .name = "PROXY",
 582                 .type = SID_NAME_WKN_GRP,
 583                 .sid = _SID1(5, 8), /* S-1-5-8 */
 584         },
 585         {
 586                 .name = "ENTERPRISE DOMAIN CONTROLLERS",
 587                 .type = SID_NAME_WKN_GRP,
 588                 .sid = _SID1(5, 9), /* S-1-5-9 */
 589         },
 590         {
 591                 .name = "SELF",
 592                 .type = SID_NAME_WKN_GRP,
 593                 .sid = _SID1(5, 10), /* S-1-5-10 */
 594         },
 595         {
 596                 .name = "Authenticated Users",
 597                 .type = SID_NAME_WKN_GRP,
 598                 .sid = _SID1(5, 11), /* S-1-5-11 */
 599         },
 600         {
 601                 .name = "RESTRICTED",
 602                 .type = SID_NAME_WKN_GRP,
 603                 .sid = _SID1(5, 12), /* S-1-5-12 */
 604         },
 605         {
 606                 .name = "TERMINAL SERVER USER",
 607                 .type = SID_NAME_WKN_GRP,
 608                 .sid = _SID1(5, 13), /* S-1-5-13 */
 609         },
 610         {
 611                 .name = "REMOTE INTERACTIVE LOGON",
 612                 .type = SID_NAME_WKN_GRP,
 613                 .sid = _SID1(5, 14), /* S-1-5-14 */
 614         },
 615         {
 616                 .name = "This Organization",
 617                 .type = SID_NAME_WKN_GRP,
 618                 .sid = _SID1(5, 15), /* S-1-5-15 */
 619         },
 620         {
 621                 .name = "IUSR",
 622                 .type = SID_NAME_WKN_GRP,
 623                 .sid = _SID1(5, 17), /* S-1-5-17 */
 624         },
 625         {
 626                 .name = "SYSTEM",
 627                 .type = SID_NAME_WKN_GRP,
 628                 .sid = _SID1(5, 18), /* S-1-5-18 */
 629         },
 630         {
 631                 .name = "LOCAL SERVICE",
 632                 .type = SID_NAME_WKN_GRP,
 633                 .sid = _SID1(5, 19), /* S-1-5-19 */
 634         },
 635         {
 636                 .name = "NETWORK SERVICE",
 637                 .type = SID_NAME_WKN_GRP,
 638                 .sid = _SID1(5, 20), /* S-1-5-20 */
 639         },
 640         {
 641                 .name = "WRITE RESTRICTED",
 642                 .type = SID_NAME_WKN_GRP,
 643                 .sid = _SID1(5, 33), /* S-1-5-33 */
 644         },
 645         {
 646                 .name = "Other Organization",
 647                 .type = SID_NAME_WKN_GRP,
 648                 .sid = _SID1(5, 1000), /* S-1-5-1000 */
 649         },
 650 };
 651
 652 /*
 653  * S-1-5-32
 654  */
 655 static const struct predefined_name_mapping predefined_names_S_1_5_32[] = {
 656         {
 657                 .name = "BUILTIN",
 658                 .type = SID_NAME_DOMAIN,
 659                 .sid = _SID1(5, 32), /* S-1-5-32 */
 660         },
 661 };
 662
 663 /*
 664  * S-1-5-64
 665  */
 666 static const struct predefined_name_mapping predefined_names_S_1_5_64[] = {
 667         {
 668                 .name = "NTLM Authentication",
 669                 .type = SID_NAME_WKN_GRP,
 670                 .sid = _SID2(5, 64, 10), /* S-1-5-64-10 */
 671         },
 672         {
 673                 .name = "SChannel Authentication",
 674                 .type = SID_NAME_WKN_GRP,
 675                 .sid = _SID2(5, 64, 14), /* S-1-5-64-14 */
 676         },
 677         {
 678                 .name = "Digest Authentication",
 679                 .type = SID_NAME_WKN_GRP,
 680                 .sid = _SID2(5, 64, 21), /* S-1-5-64-21 */
 681         },
 682 };
 683
 684 /*
 685  * S-1-7
 686  */
 687 static const struct predefined_name_mapping predefined_names_S_1_7[] = {
 688         {
 689                 .name = "Internet$",
 690                 .type = SID_NAME_DOMAIN,
 691                 .sid = _SID0(7), /* S-1-7 */
 692         },
 693 };
 694
 695 /*
 696  * S-1-16
 697  */
 698 static const struct predefined_name_mapping predefined_names_S_1_16[] = {
 699         {
 700                 .name = "Mandatory Label",
 701                 .type = SID_NAME_DOMAIN,
 702                 .sid = _SID0(16), /* S-1-16 */
 703         },
 704         {
 705                 .name = "Untrusted Mandatory Level",
 706                 .type = SID_NAME_LABEL,
 707                 .sid = _SID1(16, 0), /* S-1-16-0 */
 708         },
 709         {
 710                 .name = "Low Mandatory Level",
 711                 .type = SID_NAME_LABEL,
 712                 .sid = _SID1(16, 4096), /* S-1-16-4096 */
 713         },
 714         {
 715                 .name = "Medium Mandatory Level",
 716                 .type = SID_NAME_LABEL,
 717                 .sid = _SID1(16, 8192), /* S-1-16-8192 */
 718         },
 719         {
 720                 .name = "High Mandatory Level",
 721                 .type = SID_NAME_LABEL,
 722                 .sid = _SID1(16, 12288), /* S-1-16-12288 */
 723         },
 724         {
 725                 .name = "System Mandatory Level",
 726                 .type = SID_NAME_LABEL,
 727                 .sid = _SID1(16, 16384), /* S-1-16-16384 */
 728         },
 729         {
 730                 .name = "Protected Process Mandatory Level",
 731                 .type = SID_NAME_LABEL,
 732                 .sid = _SID1(16, 20480), /* S-1-16-20480 */
 733         },
 734 };
 735
 736 static const struct predefined_domain_mapping predefined_domains[] = {
 737         {
 738                 .domain = "",
 739                 .sid = _SID0(0), /* S-1-0 */
 740                 .num_names = ARRAY_SIZE(predefined_names_S_1_0),
 741                 .names = predefined_names_S_1_0,
 742         },
 743         {
 744                 .domain = "",
 745                 .sid = _SID0(1), /* S-1-1 */
 746                 .num_names = ARRAY_SIZE(predefined_names_S_1_1),
 747                 .names = predefined_names_S_1_1,
 748         },
 749         {
 750                 .domain = "",
 751                 .sid = _SID0(2), /* S-1-2 */
 752                 .num_names = ARRAY_SIZE(predefined_names_S_1_2),
 753                 .names = predefined_names_S_1_2,
 754         },
 755         {
 756                 .domain = "",
 757                 .sid = _SID0(3), /* S-1-3 */
 758                 .num_names = ARRAY_SIZE(predefined_names_S_1_3),
 759                 .names = predefined_names_S_1_3,
 760         },
 761         {
 762                 .domain = "",
 763                 .sid = _SID0(3), /* S-1-3 */
 764                 .num_names = ARRAY_SIZE(predefined_names_S_1_3),
 765                 .names = predefined_names_S_1_3,
 766         },
 767         /*
 768          * S-1-5 is split here
 769          *
 770          * 'NT Pseudo Domain' has precedence before 'NT AUTHORITY'.
 771          *
 772          * In a LookupSids with multiple sids e.g. S-1-5 and S-1-5-7
 773          * the domain section (struct lsa_DomainInfo) gets
 774          * 'NT Pseudo Domain' with S-1-5. If asked in reversed order
 775          * S-1-5-7 and then S-1-5, you get struct lsa_DomainInfo
 776          * with 'NT AUTHORITY' and S-1-5.
 777          */
 778         {
 779                 .domain = "NT Pseudo Domain",
 780                 .sid = _SID0(5), /* S-1-5 */
 781                 .num_names = ARRAY_SIZE(predefined_names_S_1_5p),
 782                 .names = predefined_names_S_1_5p,
 783         },
 784         {
 785                 .domain = "NT AUTHORITY",
 786                 .sid = _SID0(5), /* S-1-5 */
 787                 .num_names = ARRAY_SIZE(predefined_names_S_1_5a),
 788                 .names = predefined_names_S_1_5a,
 789         },
 790         {
 791                 .domain = "BUILTIN",
 792                 .sid = _SID1(5, 32), /* S-1-5-32 */
 793                 .num_names = ARRAY_SIZE(predefined_names_S_1_5_32),
 794                 .names = predefined_names_S_1_5_32,
 795         },
 796         /*
 797          * 'NT AUTHORITY' again with S-1-5-64 this time
 798          */
 799         {
 800                 .domain = "NT AUTHORITY",
 801                 .sid = _SID1(5, 64), /* S-1-5-64 */
 802                 .num_names = ARRAY_SIZE(predefined_names_S_1_5_64),
 803                 .names = predefined_names_S_1_5_64,
 804         },
 805         {
 806                 .domain = "Internet$",
 807                 .sid = _SID0(7), /* S-1-7 */
 808                 .num_names = ARRAY_SIZE(predefined_names_S_1_7),
 809                 .names = predefined_names_S_1_7,
 810         },
 811         {
 812                 .domain = "Mandatory Label",
 813                 .sid = _SID0(16), /* S-1-16 */
 814                 .num_names = ARRAY_SIZE(predefined_names_S_1_16),
 815                 .names = predefined_names_S_1_16,
 816         },
 817 };
 818
 819 NTSTATUS dom_sid_lookup_predefined_name(const char *name,
 820                                         const struct dom_sid **sid,
 821                                         enum lsa_SidType *type,
 822                                         const struct dom_sid **authority_sid,
 823                                         const char **authority_name)
 824 {
 825         size_t di;
 826         const char *domain = "";
 827         size_t domain_len = 0;
 828         const char *p;
 829         bool match;
 830
 831         *sid = NULL;
 832         *type = SID_NAME_UNKNOWN;
 833         *authority_sid = NULL;
 834         *authority_name = NULL;
 835
 836         if (name == NULL) {
 837                 name = "";
 838         }
 839
 840         p = strchr(name, '\\');
 841         if (p != NULL) {
 842                 domain = name;
 843                 domain_len = PTR_DIFF(p, domain);
 844                 name = p + 1;
 845         }
 846
 847         match = strequal(name, "");
 848         if (match) {
 849                 /*
 850                  * Strange, but that's what W2012R2 does.
 851                  */
 852                 name = "BUILTIN";
 853         }
 854
 855         for (di = 0; di < ARRAY_SIZE(predefined_domains); di++) {
 856                 const struct predefined_domain_mapping *d =
 857                         &predefined_domains[di];
 858                 size_t ni;
 859
 860                 if (domain_len != 0) {
 861                         int cmp;
 862
 863                         cmp = strncasecmp(d->domain, domain, domain_len);
 864                         if (cmp != 0) {
 865                                 continue;
 866                         }
 867                 }
 868
 869                 for (ni = 0; ni < d->num_names; ni++) {
 870                         const struct predefined_name_mapping *n =
 871                                 &d->names[ni];
 872
 873                         match = strequal(n->name, name);
 874                         if (!match) {
 875                                 continue;
 876                         }
 877
 878                         *sid = &n->sid;
 879                         *type = n->type;
 880                         *authority_sid = &d->sid;
 881                         *authority_name = d->domain;
 882                         return NT_STATUS_OK;
 883                 }
 884         }
 885
 886         return NT_STATUS_NONE_MAPPED;
 887 }
 888
 889 bool dom_sid_lookup_is_predefined_domain(const char *domain)
 890 {
 891         size_t di;
 892         bool match;
 893
 894         if (domain == NULL) {
 895                 domain = "";
 896         }
 897
 898         match = strequal(domain, "");
 899         if (match) {
 900                 /*
 901                  * Strange, but that's what W2012R2 does.
 902                  */
 903                 domain = "BUILTIN";
 904         }
 905
 906         for (di = 0; di < ARRAY_SIZE(predefined_domains); di++) {
 907                 const struct predefined_domain_mapping *d =
 908                         &predefined_domains[di];
 909                 int cmp;
 910
 911                 cmp = strcasecmp(d->domain, domain);
 912                 if (cmp != 0) {
 913                         continue;
 914                 }
 915
 916                 return true;
 917         }
 918
 919         return false;
 920 }
 921
 922 NTSTATUS dom_sid_lookup_predefined_sid(const struct dom_sid *sid,
 923                                        const char **name,
 924                                        enum lsa_SidType *type,
 925                                        const struct dom_sid **authority_sid,
 926                                        const char **authority_name)
 927 {
 928         size_t di;
 929         bool match_domain = false;
 930
 931         *name = NULL;
 932         *type = SID_NAME_UNKNOWN;
 933         *authority_sid = NULL;
 934         *authority_name = NULL;
 935
 936         if (sid == NULL) {
 937                 return NT_STATUS_INVALID_SID;
 938         }
 939
 940         for (di = 0; di < ARRAY_SIZE(predefined_domains); di++) {
 941                 const struct predefined_domain_mapping *d =
 942                         &predefined_domains[di];
 943                 size_t ni;
 944                 int cmp;
 945
 946                 cmp = dom_sid_compare_auth(&d->sid, sid);
 947                 if (cmp != 0) {
 948                         continue;
 949                 }
 950
 951                 match_domain = true;
 952
 953                 for (ni = 0; ni < d->num_names; ni++) {
 954                         const struct predefined_name_mapping *n =
 955                                 &d->names[ni];
 956
 957                         cmp = dom_sid_compare(&n->sid, sid);
 958                         if (cmp != 0) {
 959                                 continue;
 960                         }
 961
 962                         *name = n->name;
 963                         *type = n->type;
 964                         *authority_sid = &d->sid;
 965                         *authority_name = d->domain;
 966                         return NT_STATUS_OK;
 967                 }
 968         }
 969
 970         if (!match_domain) {
 971                 return NT_STATUS_INVALID_SID;
 972         }
 973
 974         return NT_STATUS_NONE_MAPPED;
 975 }