source3/rpc_client/cli_samr.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    RPC pipe client
   4    Copyright (C) Tim Potter                        2000-2001,
   5    Copyright (C) Andrew Tridgell              1992-1997,2000,
   6    Copyright (C) Rafal Szczesniak                       2002.
   7    Copyright (C) Jeremy Allison                         2005.
   8    Copyright (C) Guenther Deschner                      2008.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22 */
  23
  24 #include "includes.h"
  25 #include "rpc_client/rpc_client.h"
  26 #include "../libcli/auth/libcli_auth.h"
  27 #include "../librpc/gen_ndr/ndr_samr_c.h"
  28 #include "rpc_client/cli_samr.h"
  29 #include "rpc_client/init_lsa.h"
  30 #include "rpc_client/init_samr.h"
  31
  32 /* User change password */
  33
  34 NTSTATUS dcerpc_samr_chgpasswd_user(struct dcerpc_binding_handle *h,
  35                                     TALLOC_CTX *mem_ctx,
  36                                     struct policy_handle *user_handle,
  37                                     const char *newpassword,
  38                                     const char *oldpassword,
  39                                     NTSTATUS *presult)
  40 {
  41         NTSTATUS status;
  42         int rc;
  43         struct samr_Password hash1, hash2, hash3, hash4, hash5, hash6;
  44
  45         uint8_t old_nt_hash[16] = {0};
  46         uint8_t old_lm_hash[16] = {0};
  47         uint8_t new_nt_hash[16] = {0};
  48         uint8_t new_lm_hash[16] = {0};
  49
  50         DEBUG(10,("rpccli_samr_chgpasswd_user\n"));
  51
  52         E_md4hash(oldpassword, old_nt_hash);
  53         E_md4hash(newpassword, new_nt_hash);
  54
  55         E_deshash(oldpassword, old_lm_hash);
  56         E_deshash(newpassword, new_lm_hash);
  57
  58         rc = E_old_pw_hash(new_lm_hash, old_lm_hash, hash1.hash);
  59         if (rc != 0) {
  60                 status = gnutls_error_to_ntstatus(rc, NT_STATUS_ACCESS_DISABLED_BY_POLICY_OTHER);
  61                 goto done;
  62         }
  63         rc = E_old_pw_hash(old_lm_hash, new_lm_hash, hash2.hash);
  64         if (rc != 0) {
  65                 status = gnutls_error_to_ntstatus(rc, NT_STATUS_ACCESS_DISABLED_BY_POLICY_OTHER);
  66                 goto done;
  67         }
  68         rc = E_old_pw_hash(new_nt_hash, old_nt_hash, hash3.hash);
  69         if (rc != 0) {
  70                 status = gnutls_error_to_ntstatus(rc, NT_STATUS_ACCESS_DISABLED_BY_POLICY_OTHER);
  71                 goto done;
  72         }
  73         rc = E_old_pw_hash(old_nt_hash, new_nt_hash, hash4.hash);
  74         if (rc != 0) {
  75                 status = gnutls_error_to_ntstatus(rc, NT_STATUS_ACCESS_DISABLED_BY_POLICY_OTHER);
  76                 goto done;
  77         }
  78         rc = E_old_pw_hash(old_lm_hash, new_nt_hash, hash5.hash);
  79         if (rc != 0) {
  80                 status = gnutls_error_to_ntstatus(rc, NT_STATUS_ACCESS_DISABLED_BY_POLICY_OTHER);
  81                 goto done;
  82         }
  83         rc = E_old_pw_hash(old_nt_hash, new_lm_hash, hash6.hash);
  84         if (rc != 0) {
  85                 status = gnutls_error_to_ntstatus(rc, NT_STATUS_ACCESS_DISABLED_BY_POLICY_OTHER);
  86                 goto done;
  87         }
  88
  89         status = dcerpc_samr_ChangePasswordUser(h,
  90                                                 mem_ctx,
  91                                                 user_handle,
  92                                                 true,
  93                                                 &hash1,
  94                                                 &hash2,
  95                                                 true,
  96                                                 &hash3,
  97                                                 &hash4,
  98                                                 true,
  99                                                 &hash5,
 100                                                 true,
 101                                                 &hash6,
 102                                                 presult);
 103
 104 done:
 105         ZERO_ARRAY(old_nt_hash);
 106         ZERO_ARRAY(old_lm_hash);
 107         ZERO_ARRAY(new_nt_hash);
 108         ZERO_ARRAY(new_lm_hash);
 109
 110         return status;
 111 }
 112
 113 NTSTATUS rpccli_samr_chgpasswd_user(struct rpc_pipe_client *cli,
 114                                     TALLOC_CTX *mem_ctx,
 115                                     struct policy_handle *user_handle,
 116                                     const char *newpassword,
 117                                     const char *oldpassword)
 118 {
 119         NTSTATUS status;
 120         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
 121
 122         status = dcerpc_samr_chgpasswd_user(cli->binding_handle,
 123                                             mem_ctx,
 124                                             user_handle,
 125                                             newpassword,
 126                                             oldpassword,
 127                                             &result);
 128         if (!NT_STATUS_IS_OK(status)) {
 129                 return status;
 130         }
 131
 132         return result;
 133 }
 134
 135 /* User change password */
 136
 137 NTSTATUS dcerpc_samr_chgpasswd_user2(struct dcerpc_binding_handle *h,
 138                                      TALLOC_CTX *mem_ctx,
 139                                      const char *srv_name_slash,
 140                                      const char *username,
 141                                      const char *newpassword,
 142                                      const char *oldpassword,
 143                                      NTSTATUS *presult)
 144 {
 145         NTSTATUS status;
 146         int rc;
 147         struct samr_CryptPassword new_nt_password;
 148         struct samr_CryptPassword new_lm_password;
 149         struct samr_Password old_nt_hash_enc;
 150         struct samr_Password old_lanman_hash_enc;
 151
 152         uint8_t old_nt_hash[16];
 153         uint8_t old_lanman_hash[16];
 154         uint8_t new_nt_hash[16];
 155         uint8_t new_lanman_hash[16];
 156         struct lsa_String server, account;
 157
 158         DATA_BLOB session_key = data_blob_const(old_nt_hash, 16);
 159
 160         DEBUG(10,("rpccli_samr_chgpasswd_user2\n"));
 161
 162         init_lsa_String(&server, srv_name_slash);
 163         init_lsa_String(&account, username);
 164
 165         /* Calculate the MD4 hash (NT compatible) of the password */
 166         E_md4hash(oldpassword, old_nt_hash);
 167         E_md4hash(newpassword, new_nt_hash);
 168
 169         if (lp_client_lanman_auth() &&
 170             E_deshash(newpassword, new_lanman_hash) &&
 171             E_deshash(oldpassword, old_lanman_hash)) {
 172                 /* E_deshash returns false for 'long' passwords (> 14
 173                    DOS chars).  This allows us to match Win2k, which
 174                    does not store a LM hash for these passwords (which
 175                    would reduce the effective password length to 14) */
 176                 status = init_samr_CryptPassword(newpassword,
 177                                                  &session_key,
 178                                                  &new_lm_password);
 179                 if (!NT_STATUS_IS_OK(status)) {
 180                         return status;
 181                 }
 182
 183                 rc = E_old_pw_hash(new_nt_hash, old_lanman_hash, old_lanman_hash_enc.hash);
 184                 if (rc != 0) {
 185                         status = gnutls_error_to_ntstatus(rc, NT_STATUS_ACCESS_DISABLED_BY_POLICY_OTHER);
 186                         goto done;
 187                 }
 188         } else {
 189                 ZERO_STRUCT(new_lm_password);
 190                 ZERO_STRUCT(old_lanman_hash_enc);
 191         }
 192
 193         status = init_samr_CryptPassword(newpassword,
 194                                          &session_key,
 195                                          &new_nt_password);
 196         if (!NT_STATUS_IS_OK(status)) {
 197                 return status;
 198         }
 199         rc = E_old_pw_hash(new_nt_hash, old_nt_hash, old_nt_hash_enc.hash);
 200         if (rc != 0) {
 201                 status = gnutls_error_to_ntstatus(rc, NT_STATUS_ACCESS_DISABLED_BY_POLICY_OTHER);
 202                 goto done;
 203         }
 204
 205         status = dcerpc_samr_ChangePasswordUser2(h,
 206                                                  mem_ctx,
 207                                                  &server,
 208                                                  &account,
 209                                                  &new_nt_password,
 210                                                  &old_nt_hash_enc,
 211                                                  true,
 212                                                  &new_lm_password,
 213                                                  &old_lanman_hash_enc,
 214                                                  presult);
 215
 216 done:
 217         ZERO_STRUCT(new_nt_password);
 218         ZERO_STRUCT(new_lm_password);
 219         ZERO_STRUCT(old_nt_hash_enc);
 220         ZERO_STRUCT(old_lanman_hash_enc);
 221         ZERO_ARRAY(new_nt_hash);
 222         ZERO_ARRAY(new_lanman_hash);
 223         ZERO_ARRAY(old_nt_hash);
 224         ZERO_ARRAY(old_lanman_hash);
 225
 226         return status;
 227 }
 228
 229 NTSTATUS rpccli_samr_chgpasswd_user2(struct rpc_pipe_client *cli,
 230                                      TALLOC_CTX *mem_ctx,
 231                                      const char *username,
 232                                      const char *newpassword,
 233                                      const char *oldpassword)
 234 {
 235         NTSTATUS status;
 236         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
 237
 238         status = dcerpc_samr_chgpasswd_user2(cli->binding_handle,
 239                                              mem_ctx,
 240                                              cli->srv_name_slash,
 241                                              username,
 242                                              newpassword,
 243                                              oldpassword,
 244                                              &result);
 245         if (!NT_STATUS_IS_OK(status)) {
 246                 return status;
 247         }
 248
 249         return result;
 250 }
 251
 252 /* User change password given blobs */
 253
 254 NTSTATUS dcerpc_samr_chng_pswd_auth_crap(struct dcerpc_binding_handle *h,
 255                                          TALLOC_CTX *mem_ctx,
 256                                          const char *srv_name_slash,
 257                                          const char *username,
 258                                          DATA_BLOB new_nt_password_blob,
 259                                          DATA_BLOB old_nt_hash_enc_blob,
 260                                          DATA_BLOB new_lm_password_blob,
 261                                          DATA_BLOB old_lm_hash_enc_blob,
 262                                          NTSTATUS *presult)
 263 {
 264         NTSTATUS status;
 265         struct samr_CryptPassword new_nt_password;
 266         struct samr_CryptPassword new_lm_password;
 267         struct samr_Password old_nt_hash_enc;
 268         struct samr_Password old_lm_hash_enc;
 269         struct lsa_String server, account;
 270
 271         DEBUG(10,("rpccli_samr_chng_pswd_auth_crap\n"));
 272
 273         ZERO_STRUCT(new_nt_password);
 274         ZERO_STRUCT(new_lm_password);
 275         ZERO_STRUCT(old_nt_hash_enc);
 276         ZERO_STRUCT(old_lm_hash_enc);
 277
 278         init_lsa_String(&server, srv_name_slash);
 279         init_lsa_String(&account, username);
 280
 281         if (new_nt_password_blob.data && new_nt_password_blob.length >= 516) {
 282                 memcpy(&new_nt_password.data, new_nt_password_blob.data, 516);
 283         }
 284
 285         if (new_lm_password_blob.data && new_lm_password_blob.length >= 516) {
 286                 memcpy(&new_lm_password.data, new_lm_password_blob.data, 516);
 287         }
 288
 289         if (old_nt_hash_enc_blob.data && old_nt_hash_enc_blob.length >= 16) {
 290                 memcpy(&old_nt_hash_enc.hash, old_nt_hash_enc_blob.data, 16);
 291         }
 292
 293         if (old_lm_hash_enc_blob.data && old_lm_hash_enc_blob.length >= 16) {
 294                 memcpy(&old_lm_hash_enc.hash, old_lm_hash_enc_blob.data, 16);
 295         }
 296
 297         status = dcerpc_samr_ChangePasswordUser2(h,
 298                                                  mem_ctx,
 299                                                  &server,
 300                                                  &account,
 301                                                  &new_nt_password,
 302                                                  &old_nt_hash_enc,
 303                                                  true,
 304                                                  &new_lm_password,
 305                                                  &old_lm_hash_enc,
 306                                                  presult);
 307
 308         return status;
 309 }
 310
 311 NTSTATUS rpccli_samr_chng_pswd_auth_crap(struct rpc_pipe_client *cli,
 312                                          TALLOC_CTX *mem_ctx,
 313                                          const char *username,
 314                                          DATA_BLOB new_nt_password_blob,
 315                                          DATA_BLOB old_nt_hash_enc_blob,
 316                                          DATA_BLOB new_lm_password_blob,
 317                                          DATA_BLOB old_lm_hash_enc_blob)
 318 {
 319         NTSTATUS status;
 320         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
 321
 322         status = dcerpc_samr_chng_pswd_auth_crap(cli->binding_handle,
 323                                                  mem_ctx,
 324                                                  cli->srv_name_slash,
 325                                                  username,
 326                                                  new_nt_password_blob,
 327                                                  old_nt_hash_enc_blob,
 328                                                  new_lm_password_blob,
 329                                                  old_lm_hash_enc_blob,
 330                                                  &result);
 331         if (!NT_STATUS_IS_OK(status)) {
 332                 return status;
 333         }
 334
 335         return result;
 336 }
 337
 338 /* change password 3 */
 339
 340 NTSTATUS dcerpc_samr_chgpasswd_user3(struct dcerpc_binding_handle *h,
 341                                      TALLOC_CTX *mem_ctx,
 342                                      const char *srv_name_slash,
 343                                      const char *username,
 344                                      const char *newpassword,
 345                                      const char *oldpassword,
 346                                      struct samr_DomInfo1 **dominfo1,
 347                                      struct userPwdChangeFailureInformation **reject,
 348                                      NTSTATUS *presult)
 349 {
 350         NTSTATUS status;
 351         int rc;
 352
 353         struct samr_CryptPassword new_nt_password;
 354         struct samr_CryptPassword new_lm_password;
 355         struct samr_Password old_nt_hash_enc;
 356         struct samr_Password old_lanman_hash_enc;
 357
 358         uint8_t old_nt_hash[16];
 359         uint8_t old_lanman_hash[16];
 360         uint8_t new_nt_hash[16];
 361         uint8_t new_lanman_hash[16];
 362
 363         struct lsa_String server, account;
 364
 365         DATA_BLOB session_key = data_blob_const(old_nt_hash, 16);
 366
 367         DEBUG(10,("rpccli_samr_chgpasswd_user3\n"));
 368
 369         init_lsa_String(&server, srv_name_slash);
 370         init_lsa_String(&account, username);
 371
 372         /* Calculate the MD4 hash (NT compatible) of the password */
 373         E_md4hash(oldpassword, old_nt_hash);
 374         E_md4hash(newpassword, new_nt_hash);
 375
 376         if (lp_client_lanman_auth() &&
 377             E_deshash(newpassword, new_lanman_hash) &&
 378             E_deshash(oldpassword, old_lanman_hash)) {
 379                 /* E_deshash returns false for 'long' passwords (> 14
 380                    DOS chars).  This allows us to match Win2k, which
 381                    does not store a LM hash for these passwords (which
 382                    would reduce the effective password length to 14) */
 383                 status = init_samr_CryptPassword(newpassword,
 384                                                  &session_key,
 385                                                  &new_lm_password);
 386                 if (!NT_STATUS_IS_OK(status)) {
 387                         return status;
 388                 }
 389
 390                 rc = E_old_pw_hash(new_nt_hash, old_lanman_hash, old_lanman_hash_enc.hash);
 391                 if (rc != 0) {
 392                         status = gnutls_error_to_ntstatus(rc, NT_STATUS_ACCESS_DISABLED_BY_POLICY_OTHER);
 393                         goto done;
 394                 }
 395         } else {
 396                 ZERO_STRUCT(new_lm_password);
 397                 ZERO_STRUCT(old_lanman_hash_enc);
 398         }
 399
 400         status = init_samr_CryptPassword(newpassword,
 401                                          &session_key,
 402                                          &new_nt_password);
 403         if (!NT_STATUS_IS_OK(status)) {
 404                 return status;
 405         }
 406
 407         rc = E_old_pw_hash(new_nt_hash, old_nt_hash, old_nt_hash_enc.hash);
 408         if (rc != 0) {
 409                 status = gnutls_error_to_ntstatus(rc, NT_STATUS_ACCESS_DISABLED_BY_POLICY_OTHER);
 410                 goto done;
 411         }
 412
 413         status = dcerpc_samr_ChangePasswordUser3(h,
 414                                                  mem_ctx,
 415                                                  &server,
 416                                                  &account,
 417                                                  &new_nt_password,
 418                                                  &old_nt_hash_enc,
 419                                                  true,
 420                                                  &new_lm_password,
 421                                                  &old_lanman_hash_enc,
 422                                                  NULL,
 423                                                  dominfo1,
 424                                                  reject,
 425                                                  presult);
 426
 427 done:
 428         ZERO_STRUCT(new_nt_password);
 429         ZERO_STRUCT(new_lm_password);
 430         ZERO_STRUCT(old_nt_hash_enc);
 431         ZERO_STRUCT(old_lanman_hash_enc);
 432         ZERO_ARRAY(new_nt_hash);
 433         ZERO_ARRAY(new_lanman_hash);
 434         ZERO_ARRAY(old_nt_hash);
 435         ZERO_ARRAY(old_lanman_hash);
 436
 437         return status;
 438 }
 439
 440 NTSTATUS rpccli_samr_chgpasswd_user3(struct rpc_pipe_client *cli,
 441                                      TALLOC_CTX *mem_ctx,
 442                                      const char *username,
 443                                      const char *newpassword,
 444                                      const char *oldpassword,
 445                                      struct samr_DomInfo1 **dominfo1,
 446                                      struct userPwdChangeFailureInformation **reject)
 447 {
 448         NTSTATUS status;
 449         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
 450
 451         status = dcerpc_samr_chgpasswd_user3(cli->binding_handle,
 452                                              mem_ctx,
 453                                              cli->srv_name_slash,
 454                                              username,
 455                                              newpassword,
 456                                              oldpassword,
 457                                              dominfo1,
 458                                              reject,
 459                                              &result);
 460         if (!NT_STATUS_IS_OK(status)) {
 461                 return status;
 462         }
 463
 464         return result;
 465 }
 466
 467 /* This function returns the bizzare set of (max_entries, max_size) required
 468    for the QueryDisplayInfo RPC to actually work against a domain controller
 469    with large (10k and higher) numbers of users.  These values were
 470    obtained by inspection using ethereal and NT4 running User Manager. */
 471
 472 void dcerpc_get_query_dispinfo_params(int loop_count,
 473                                       uint32_t *max_entries,
 474                                       uint32_t *max_size)
 475 {
 476         switch(loop_count) {
 477         case 0:
 478                 *max_entries = 512;
 479                 *max_size = 16383;
 480                 break;
 481         case 1:
 482                 *max_entries = 1024;
 483                 *max_size = 32766;
 484                 break;
 485         case 2:
 486                 *max_entries = 2048;
 487                 *max_size = 65532;
 488                 break;
 489         case 3:
 490                 *max_entries = 4096;
 491                 *max_size = 131064;
 492                 break;
 493         default:              /* loop_count >= 4 */
 494                 *max_entries = 4096;
 495                 *max_size = 131071;
 496                 break;
 497         }
 498 }
 499
 500 NTSTATUS dcerpc_try_samr_connects(struct dcerpc_binding_handle *h,
 501                                   TALLOC_CTX *mem_ctx,
 502                                   const char *srv_name_slash,
 503                                   uint32_t access_mask,
 504                                   struct policy_handle *connect_pol,
 505                                   NTSTATUS *presult)
 506 {
 507         NTSTATUS status;
 508         union samr_ConnectInfo info_in, info_out;
 509         struct samr_ConnectInfo1 info1;
 510         uint32_t lvl_out = 0;
 511
 512         ZERO_STRUCT(info1);
 513
 514         info1.client_version = SAMR_CONNECT_W2K;
 515         info_in.info1 = info1;
 516
 517         status = dcerpc_samr_Connect5(h,
 518                                       mem_ctx,
 519                                       srv_name_slash,
 520                                       access_mask,
 521                                       1,
 522                                       &info_in,
 523                                       &lvl_out,
 524                                       &info_out,
 525                                       connect_pol,
 526                                       presult);
 527         if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(*presult)) {
 528                 return status;
 529         }
 530
 531         status = dcerpc_samr_Connect4(h,
 532                                       mem_ctx,
 533                                       srv_name_slash,
 534                                       SAMR_CONNECT_W2K,
 535                                       access_mask,
 536                                       connect_pol,
 537                                       presult);
 538         if (NT_STATUS_IS_OK(status) && NT_STATUS_IS_OK(*presult)) {
 539                 return status;
 540         }
 541
 542         status = dcerpc_samr_Connect2(h,
 543                                       mem_ctx,
 544                                       srv_name_slash,
 545                                       access_mask,
 546                                       connect_pol,
 547                                       presult);
 548
 549         return status;
 550 }
 551
 552 /* vim: set ts=8 sw=8 noet cindent: */