source3/rpc_client/cli_netlogon.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    NT Domain Authentication SMB / MSRPC client
   4    Copyright (C) Andrew Tridgell 1992-2000
   5    Copyright (C) Jeremy Allison                    1998.
   6    Largely re-written by Jeremy Allison (C)        2005.
   7    Copyright (C) Guenther Deschner                 2008.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #include "includes.h"
  24 #include "system/filesys.h"
  25 #include "libsmb/libsmb.h"
  26 #include "rpc_client/rpc_client.h"
  27 #include "rpc_client/cli_pipe.h"
  28 #include "../libcli/auth/libcli_auth.h"
  29 #include "../libcli/auth/netlogon_creds_cli.h"
  30 #include "../librpc/gen_ndr/ndr_netlogon_c.h"
  31 #include "../librpc/gen_ndr/schannel.h"
  32 #include "rpc_client/cli_netlogon.h"
  33 #include "rpc_client/init_netlogon.h"
  34 #include "rpc_client/util_netlogon.h"
  35 #include "../libcli/security/security.h"
  36 #include "lib/param/param.h"
  37 #include "libcli/smb/smbXcli_base.h"
  38 #include "dbwrap/dbwrap.h"
  39 #include "dbwrap/dbwrap_open.h"
  40 #include "util_tdb.h"
  41
  42
  43 NTSTATUS rpccli_pre_open_netlogon_creds(void)
  44 {
  45         static bool already_open = false;
  46         TALLOC_CTX *frame;
  47         struct loadparm_context *lp_ctx;
  48         char *fname;
  49         struct db_context *global_db;
  50         NTSTATUS status;
  51
  52         if (already_open) {
  53                 return NT_STATUS_OK;
  54         }
  55
  56         frame = talloc_stackframe();
  57
  58         lp_ctx = loadparm_init_s3(frame, loadparm_s3_helpers());
  59         if (lp_ctx == NULL) {
  60                 TALLOC_FREE(frame);
  61                 return NT_STATUS_NO_MEMORY;
  62         }
  63
  64         fname = lpcfg_private_db_path(frame, lp_ctx, "netlogon_creds_cli");
  65         if (fname == NULL) {
  66                 TALLOC_FREE(frame);
  67                 return NT_STATUS_NO_MEMORY;
  68         }
  69
  70         global_db = db_open(frame, fname,
  71                             0, TDB_CLEAR_IF_FIRST|TDB_INCOMPATIBLE_HASH,
  72                             O_RDWR|O_CREAT, 0600, DBWRAP_LOCK_ORDER_2,
  73                             DBWRAP_FLAG_OPTIMIZE_READONLY_ACCESS);
  74         if (global_db == NULL) {
  75                 TALLOC_FREE(frame);
  76                 return NT_STATUS_NO_MEMORY;
  77         }
  78
  79         status = netlogon_creds_cli_set_global_db(&global_db);
  80         TALLOC_FREE(frame);
  81         if (!NT_STATUS_IS_OK(status)) {
  82                 return status;
  83         }
  84
  85         already_open = true;
  86         return NT_STATUS_OK;
  87 }
  88
  89 static NTSTATUS rpccli_create_netlogon_creds(
  90         const char *server_computer,
  91         const char *server_netbios_domain,
  92         const char *server_dns_domain,
  93         const char *client_account,
  94         enum netr_SchannelType sec_chan_type,
  95         struct messaging_context *msg_ctx,
  96         TALLOC_CTX *mem_ctx,
  97         struct netlogon_creds_cli_context **netlogon_creds)
  98 {
  99         TALLOC_CTX *frame = talloc_stackframe();
 100         struct loadparm_context *lp_ctx;
 101         NTSTATUS status;
 102
 103         status = rpccli_pre_open_netlogon_creds();
 104         if (!NT_STATUS_IS_OK(status)) {
 105                 TALLOC_FREE(frame);
 106                 return status;
 107         }
 108
 109         lp_ctx = loadparm_init_s3(frame, loadparm_s3_helpers());
 110         if (lp_ctx == NULL) {
 111                 TALLOC_FREE(frame);
 112                 return NT_STATUS_NO_MEMORY;
 113         }
 114         status = netlogon_creds_cli_context_global(lp_ctx,
 115                                                    msg_ctx,
 116                                                    client_account,
 117                                                    sec_chan_type,
 118                                                    server_computer,
 119                                                    server_netbios_domain,
 120                                                    server_dns_domain,
 121                                                    mem_ctx, netlogon_creds);
 122         TALLOC_FREE(frame);
 123         if (!NT_STATUS_IS_OK(status)) {
 124                 return status;
 125         }
 126
 127         return NT_STATUS_OK;
 128 }
 129
 130 NTSTATUS rpccli_create_netlogon_creds_ctx(
 131         struct cli_credentials *creds,
 132         const char *server_computer,
 133         struct messaging_context *msg_ctx,
 134         TALLOC_CTX *mem_ctx,
 135         struct netlogon_creds_cli_context **creds_ctx)
 136 {
 137         enum netr_SchannelType sec_chan_type;
 138         const char *server_netbios_domain;
 139         const char *server_dns_domain;
 140         const char *client_account;
 141
 142         sec_chan_type = cli_credentials_get_secure_channel_type(creds);
 143         client_account = cli_credentials_get_username(creds);
 144         server_netbios_domain = cli_credentials_get_domain(creds);
 145         server_dns_domain = cli_credentials_get_realm(creds);
 146
 147         return rpccli_create_netlogon_creds(server_computer,
 148                                             server_netbios_domain,
 149                                             server_dns_domain,
 150                                             client_account,
 151                                             sec_chan_type,
 152                                             msg_ctx, mem_ctx,
 153                                             creds_ctx);
 154 }
 155
 156 NTSTATUS rpccli_setup_netlogon_creds_locked(
 157         struct cli_state *cli,
 158         enum dcerpc_transport_t transport,
 159         struct netlogon_creds_cli_context *creds_ctx,
 160         bool force_reauth,
 161         struct cli_credentials *cli_creds,
 162         uint32_t *negotiate_flags)
 163 {
 164         TALLOC_CTX *frame = talloc_stackframe();
 165         struct rpc_pipe_client *netlogon_pipe = NULL;
 166         struct netlogon_creds_CredentialState *creds = NULL;
 167         uint8_t num_nt_hashes = 0;
 168         const struct samr_Password *nt_hashes[2] = { NULL, NULL };
 169         uint8_t idx_nt_hashes = 0;
 170         NTSTATUS status;
 171
 172         status = netlogon_creds_cli_get(creds_ctx, frame, &creds);
 173         if (NT_STATUS_IS_OK(status)) {
 174                 const char *action = "using";
 175
 176                 if (force_reauth) {
 177                         action = "overwrite";
 178                 }
 179
 180                 DEBUG(5,("%s: %s cached netlogon_creds cli[%s/%s] to %s\n",
 181                          __FUNCTION__, action,
 182                          creds->account_name, creds->computer_name,
 183                          smbXcli_conn_remote_name(cli->conn)));
 184                 if (!force_reauth) {
 185                         goto done;
 186                 }
 187                 TALLOC_FREE(creds);
 188         }
 189
 190         nt_hashes[0] = cli_credentials_get_nt_hash(cli_creds, talloc_tos());
 191         if (nt_hashes[0] == NULL) {
 192                 TALLOC_FREE(frame);
 193                 return NT_STATUS_NO_MEMORY;
 194         }
 195         num_nt_hashes = 1;
 196
 197         nt_hashes[1] = cli_credentials_get_old_nt_hash(cli_creds,
 198                                                        talloc_tos());
 199         if (nt_hashes[1] != NULL) {
 200                 num_nt_hashes = 2;
 201         }
 202
 203         status = cli_rpc_pipe_open_noauth_transport(cli,
 204                                                     transport,
 205                                                     &ndr_table_netlogon,
 206                                                     &netlogon_pipe);
 207         if (!NT_STATUS_IS_OK(status)) {
 208                 DEBUG(5,("%s: failed to open noauth netlogon connection to %s - %s\n",
 209                          __FUNCTION__,
 210                          smbXcli_conn_remote_name(cli->conn),
 211                          nt_errstr(status)));
 212                 TALLOC_FREE(frame);
 213                 return status;
 214         }
 215         talloc_steal(frame, netlogon_pipe);
 216
 217         status = netlogon_creds_cli_auth(creds_ctx,
 218                                          netlogon_pipe->binding_handle,
 219                                          num_nt_hashes,
 220                                          nt_hashes,
 221                                          &idx_nt_hashes);
 222         if (!NT_STATUS_IS_OK(status)) {
 223                 TALLOC_FREE(frame);
 224                 return status;
 225         }
 226
 227         status = netlogon_creds_cli_get(creds_ctx, frame, &creds);
 228         if (!NT_STATUS_IS_OK(status)) {
 229                 TALLOC_FREE(frame);
 230                 return NT_STATUS_INTERNAL_ERROR;
 231         }
 232
 233         DEBUG(5,("%s: using new netlogon_creds cli[%s/%s] to %s\n",
 234                  __FUNCTION__,
 235                  creds->account_name, creds->computer_name,
 236                  smbXcli_conn_remote_name(cli->conn)));
 237
 238 done:
 239         if (negotiate_flags != NULL) {
 240                 *negotiate_flags = creds->negotiate_flags;
 241         }
 242
 243         TALLOC_FREE(frame);
 244         return NT_STATUS_OK;
 245 }
 246
 247 NTSTATUS rpccli_setup_netlogon_creds(
 248         struct cli_state *cli,
 249         enum dcerpc_transport_t transport,
 250         struct netlogon_creds_cli_context *creds_ctx,
 251         bool force_reauth,
 252         struct cli_credentials *cli_creds)
 253 {
 254         TALLOC_CTX *frame = talloc_stackframe();
 255         struct netlogon_creds_cli_lck *lck;
 256         NTSTATUS status;
 257
 258         status = netlogon_creds_cli_lck(
 259                 creds_ctx, NETLOGON_CREDS_CLI_LCK_EXCLUSIVE,
 260                 frame, &lck);
 261         if (!NT_STATUS_IS_OK(status)) {
 262                 DBG_WARNING("netlogon_creds_cli_lck failed: %s\n",
 263                             nt_errstr(status));
 264                 TALLOC_FREE(frame);
 265                 return status;
 266         }
 267
 268         status = rpccli_setup_netlogon_creds_locked(
 269                 cli, transport, creds_ctx, force_reauth, cli_creds, NULL);
 270
 271         TALLOC_FREE(frame);
 272
 273         return status;
 274 }
 275
 276 NTSTATUS rpccli_connect_netlogon(
 277         struct cli_state *cli,
 278         enum dcerpc_transport_t transport,
 279         struct netlogon_creds_cli_context *creds_ctx,
 280         bool force_reauth,
 281         struct cli_credentials *trust_creds,
 282         struct rpc_pipe_client **_rpccli)
 283 {
 284         TALLOC_CTX *frame = talloc_stackframe();
 285         struct netlogon_creds_CredentialState *creds = NULL;
 286         enum netlogon_creds_cli_lck_type lck_type;
 287         enum netr_SchannelType sec_chan_type;
 288         struct netlogon_creds_cli_lck *lck = NULL;
 289         uint32_t negotiate_flags;
 290         uint8_t found_session_key[16] = {0};
 291         bool found_existing_creds = false;
 292         bool do_serverauth;
 293         struct rpc_pipe_client *rpccli;
 294         NTSTATUS status;
 295         bool retry = false;
 296
 297         sec_chan_type = cli_credentials_get_secure_channel_type(trust_creds);
 298         if (sec_chan_type == SEC_CHAN_NULL) {
 299                 DBG_ERR("secure_channel_type gave SEC_CHAN_NULL\n");
 300                 status = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
 301                 goto fail;
 302         }
 303
 304 again:
 305
 306         /*
 307          * See whether we can use existing netlogon_creds or
 308          * whether we have to serverauthenticate.
 309          */
 310         status = netlogon_creds_cli_get(creds_ctx, frame, &creds);
 311
 312         if (NT_STATUS_IS_OK(status)) {
 313                 int cmp = memcmp(found_session_key,
 314                                  creds->session_key,
 315                                  sizeof(found_session_key));
 316                 found_existing_creds = (cmp != 0);
 317
 318                 memcpy(found_session_key,
 319                        creds->session_key,
 320                        sizeof(found_session_key));
 321
 322                 TALLOC_FREE(creds);
 323         }
 324
 325         lck_type = (force_reauth || !found_existing_creds) ?
 326                 NETLOGON_CREDS_CLI_LCK_EXCLUSIVE :
 327                 NETLOGON_CREDS_CLI_LCK_SHARED;
 328
 329         status = netlogon_creds_cli_lck(creds_ctx, lck_type, frame, &lck);
 330         if (!NT_STATUS_IS_OK(status)) {
 331                 DBG_DEBUG("netlogon_creds_cli_lck failed: %s\n",
 332                           nt_errstr(status));
 333                 goto fail;
 334         }
 335
 336         if (!found_existing_creds) {
 337                 /*
 338                  * Try to find creds under the lock again. Someone
 339                  * else might have done it for us.
 340                  */
 341                 status = netlogon_creds_cli_get(creds_ctx, frame, &creds);
 342
 343                 if (NT_STATUS_IS_OK(status)) {
 344                         int cmp = memcmp(found_session_key,
 345                                          creds->session_key,
 346                                          sizeof(found_session_key));
 347                         found_existing_creds = (cmp != 0);
 348
 349                         memcpy(found_session_key, creds->session_key,
 350                                sizeof(found_session_key));
 351
 352                         TALLOC_FREE(creds);
 353                 }
 354         }
 355
 356         do_serverauth = force_reauth || !found_existing_creds;
 357
 358         if (!do_serverauth) {
 359                 /*
 360                  * Do the quick schannel bind without a reauth
 361                  */
 362                 status = cli_rpc_pipe_open_bind_schannel(
 363                         cli, &ndr_table_netlogon, transport, creds_ctx,
 364                         &rpccli);
 365                 if (!retry && NT_STATUS_EQUAL(status, NT_STATUS_NETWORK_ACCESS_DENIED)) {
 366                         DBG_DEBUG("Retrying with serverauthenticate\n");
 367                         TALLOC_FREE(lck);
 368                         retry = true;
 369                         goto again;
 370                 }
 371                 if (!NT_STATUS_IS_OK(status)) {
 372                         DBG_DEBUG("cli_rpc_pipe_open_bind_schannel "
 373                                   "failed: %s\n", nt_errstr(status));
 374                         goto fail;
 375                 }
 376                 goto done;
 377         }
 378
 379         if (cli_credentials_is_anonymous(trust_creds)) {
 380                 DBG_WARNING("get_trust_credential for %s only gave anonymous,"
 381                             "unable to negotiate NETLOGON credentials\n",
 382                             netlogon_creds_cli_debug_string(
 383                                     creds_ctx, frame));
 384                 status = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
 385                 goto fail;
 386         }
 387
 388         status = rpccli_setup_netlogon_creds_locked(
 389                 cli, transport, creds_ctx, true, trust_creds,
 390                 &negotiate_flags);
 391         if (!NT_STATUS_IS_OK(status)) {
 392                 DBG_DEBUG("rpccli_setup_netlogon_creds failed for %s, "
 393                           "unable to setup NETLOGON credentials: %s\n",
 394                           netlogon_creds_cli_debug_string(
 395                                   creds_ctx, frame),
 396                           nt_errstr(status));
 397                 goto fail;
 398         }
 399
 400         if (!(negotiate_flags & NETLOGON_NEG_AUTHENTICATED_RPC)) {
 401                 if (lp_winbind_sealed_pipes() || lp_require_strong_key()) {
 402                         status = NT_STATUS_DOWNGRADE_DETECTED;
 403                         DBG_WARNING("Unwilling to make connection to %s"
 404                                     "without connection level security, "
 405                                     "must set 'winbind sealed pipes = false'"
 406                                     " and 'require strong key = false' "
 407                                     "to proceed: %s\n",
 408                                     netlogon_creds_cli_debug_string(
 409                                             creds_ctx, frame),
 410                                     nt_errstr(status));
 411                         goto fail;
 412                 }
 413
 414                 status = cli_rpc_pipe_open_noauth_transport(
 415                         cli, transport, &ndr_table_netlogon, &rpccli);
 416                 if (!NT_STATUS_IS_OK(status)) {
 417                         DBG_DEBUG("cli_rpc_pipe_open_noauth_transport "
 418                                   "failed: %s\n", nt_errstr(status));
 419                         goto fail;
 420                 }
 421                 goto done;
 422         }
 423
 424         status = cli_rpc_pipe_open_bind_schannel(
 425                 cli, &ndr_table_netlogon, transport, creds_ctx, &rpccli);
 426         if (!NT_STATUS_IS_OK(status)) {
 427                 DBG_DEBUG("cli_rpc_pipe_open_bind_schannel "
 428                           "failed: %s\n", nt_errstr(status));
 429                 goto fail;
 430         }
 431
 432         status = netlogon_creds_cli_check(creds_ctx, rpccli->binding_handle,
 433                                           NULL);
 434         if (!NT_STATUS_IS_OK(status)) {
 435                 DBG_WARNING("netlogon_creds_cli_check failed: %s\n",
 436                             nt_errstr(status));
 437                 goto fail;
 438         }
 439
 440 done:
 441         *_rpccli = rpccli;
 442         status = NT_STATUS_OK;
 443 fail:
 444         ZERO_STRUCT(found_session_key);
 445         TALLOC_FREE(lck);
 446         TALLOC_FREE(frame);
 447         return status;
 448 }
 449
 450 /* Logon domain user */
 451
 452 NTSTATUS rpccli_netlogon_password_logon(
 453         struct netlogon_creds_cli_context *creds_ctx,
 454         struct dcerpc_binding_handle *binding_handle,
 455         TALLOC_CTX *mem_ctx,
 456         uint32_t logon_parameters,
 457         const char *domain,
 458         const char *username,
 459         const char *password,
 460         const char *workstation,
 461         enum netr_LogonInfoClass logon_type,
 462         uint8_t *authoritative,
 463         uint32_t *flags,
 464         struct netr_SamInfo3 **info3)
 465 {
 466         TALLOC_CTX *frame = talloc_stackframe();
 467         NTSTATUS status;
 468         union netr_LogonLevel *logon;
 469         uint16_t validation_level = 0;
 470         union netr_Validation *validation = NULL;
 471         char *workstation_slash = NULL;
 472
 473         logon = talloc_zero(frame, union netr_LogonLevel);
 474         if (logon == NULL) {
 475                 TALLOC_FREE(frame);
 476                 return NT_STATUS_NO_MEMORY;
 477         }
 478
 479         if (workstation == NULL) {
 480                 workstation = lp_netbios_name();
 481         }
 482
 483         workstation_slash = talloc_asprintf(frame, "\\\\%s", workstation);
 484         if (workstation_slash == NULL) {
 485                 TALLOC_FREE(frame);
 486                 return NT_STATUS_NO_MEMORY;
 487         }
 488
 489         /* Initialise input parameters */
 490
 491         switch (logon_type) {
 492         case NetlogonInteractiveInformation: {
 493
 494                 struct netr_PasswordInfo *password_info;
 495
 496                 struct samr_Password lmpassword;
 497                 struct samr_Password ntpassword;
 498
 499                 password_info = talloc_zero(frame, struct netr_PasswordInfo);
 500                 if (password_info == NULL) {
 501                         TALLOC_FREE(frame);
 502                         return NT_STATUS_NO_MEMORY;
 503                 }
 504
 505                 nt_lm_owf_gen(password, ntpassword.hash, lmpassword.hash);
 506
 507                 password_info->identity_info.domain_name.string         = domain;
 508                 password_info->identity_info.parameter_control          = logon_parameters;
 509                 password_info->identity_info.logon_id_low               = 0xdead;
 510                 password_info->identity_info.logon_id_high              = 0xbeef;
 511                 password_info->identity_info.account_name.string        = username;
 512                 password_info->identity_info.workstation.string         = workstation_slash;
 513
 514                 password_info->lmpassword = lmpassword;
 515                 password_info->ntpassword = ntpassword;
 516
 517                 logon->password = password_info;
 518
 519                 break;
 520         }
 521         case NetlogonNetworkInformation: {
 522                 struct netr_NetworkInfo *network_info;
 523                 uint8_t chal[8];
 524                 unsigned char local_lm_response[24];
 525                 unsigned char local_nt_response[24];
 526                 struct netr_ChallengeResponse lm;
 527                 struct netr_ChallengeResponse nt;
 528
 529                 ZERO_STRUCT(lm);
 530                 ZERO_STRUCT(nt);
 531
 532                 network_info = talloc_zero(frame, struct netr_NetworkInfo);
 533                 if (network_info == NULL) {
 534                         TALLOC_FREE(frame);
 535                         return NT_STATUS_NO_MEMORY;
 536                 }
 537
 538                 generate_random_buffer(chal, 8);
 539
 540                 SMBencrypt(password, chal, local_lm_response);
 541                 SMBNTencrypt(password, chal, local_nt_response);
 542
 543                 lm.length = 24;
 544                 lm.data = local_lm_response;
 545
 546                 nt.length = 24;
 547                 nt.data = local_nt_response;
 548
 549                 network_info->identity_info.domain_name.string          = domain;
 550                 network_info->identity_info.parameter_control           = logon_parameters;
 551                 network_info->identity_info.logon_id_low                = 0xdead;
 552                 network_info->identity_info.logon_id_high               = 0xbeef;
 553                 network_info->identity_info.account_name.string         = username;
 554                 network_info->identity_info.workstation.string          = workstation_slash;
 555
 556                 memcpy(network_info->challenge, chal, 8);
 557                 network_info->nt = nt;
 558                 network_info->lm = lm;
 559
 560                 logon->network = network_info;
 561
 562                 break;
 563         }
 564         default:
 565                 DEBUG(0, ("switch value %d not supported\n",
 566                         logon_type));
 567                 TALLOC_FREE(frame);
 568                 return NT_STATUS_INVALID_INFO_CLASS;
 569         }
 570
 571         status = netlogon_creds_cli_LogonSamLogon(creds_ctx,
 572                                                   binding_handle,
 573                                                   logon_type,
 574                                                   logon,
 575                                                   frame,
 576                                                   &validation_level,
 577                                                   &validation,
 578                                                   authoritative,
 579                                                   flags);
 580         if (!NT_STATUS_IS_OK(status)) {
 581                 TALLOC_FREE(frame);
 582                 return status;
 583         }
 584
 585         status = map_validation_to_info3(mem_ctx,
 586                                          validation_level, validation,
 587                                          info3);
 588         TALLOC_FREE(frame);
 589         if (!NT_STATUS_IS_OK(status)) {
 590                 return status;
 591         }
 592
 593
 594         return NT_STATUS_OK;
 595 }
 596
 597 /**
 598  * Logon domain user with an 'network' SAM logon
 599  *
 600  * @param info3 Pointer to a NET_USER_INFO_3 already allocated by the caller.
 601  **/
 602
 603
 604 NTSTATUS rpccli_netlogon_network_logon(
 605         struct netlogon_creds_cli_context *creds_ctx,
 606         struct dcerpc_binding_handle *binding_handle,
 607         TALLOC_CTX *mem_ctx,
 608         uint32_t logon_parameters,
 609         const char *username,
 610         const char *domain,
 611         const char *workstation,
 612         const uint8_t chal[8],
 613         DATA_BLOB lm_response,
 614         DATA_BLOB nt_response,
 615         uint8_t *authoritative,
 616         uint32_t *flags,
 617         struct netr_SamInfo3 **info3)
 618 {
 619         NTSTATUS status;
 620         const char *workstation_name_slash;
 621         union netr_LogonLevel *logon = NULL;
 622         struct netr_NetworkInfo *network_info;
 623         uint16_t validation_level = 0;
 624         union netr_Validation *validation = NULL;
 625         struct netr_ChallengeResponse lm;
 626         struct netr_ChallengeResponse nt;
 627
 628         *info3 = NULL;
 629
 630         ZERO_STRUCT(lm);
 631         ZERO_STRUCT(nt);
 632
 633         logon = talloc_zero(mem_ctx, union netr_LogonLevel);
 634         if (!logon) {
 635                 return NT_STATUS_NO_MEMORY;
 636         }
 637
 638         network_info = talloc_zero(mem_ctx, struct netr_NetworkInfo);
 639         if (!network_info) {
 640                 return NT_STATUS_NO_MEMORY;
 641         }
 642
 643         if (workstation[0] != '\\' && workstation[1] != '\\') {
 644                 workstation_name_slash = talloc_asprintf(mem_ctx, "\\\\%s", workstation);
 645         } else {
 646                 workstation_name_slash = workstation;
 647         }
 648
 649         if (!workstation_name_slash) {
 650                 DEBUG(0, ("talloc_asprintf failed!\n"));
 651                 return NT_STATUS_NO_MEMORY;
 652         }
 653
 654         /* Initialise input parameters */
 655
 656         lm.data = lm_response.data;
 657         lm.length = lm_response.length;
 658         nt.data = nt_response.data;
 659         nt.length = nt_response.length;
 660
 661         network_info->identity_info.domain_name.string          = domain;
 662         network_info->identity_info.parameter_control           = logon_parameters;
 663         network_info->identity_info.logon_id_low                = 0xdead;
 664         network_info->identity_info.logon_id_high               = 0xbeef;
 665         network_info->identity_info.account_name.string         = username;
 666         network_info->identity_info.workstation.string          = workstation_name_slash;
 667
 668         memcpy(network_info->challenge, chal, 8);
 669         network_info->nt = nt;
 670         network_info->lm = lm;
 671
 672         logon->network = network_info;
 673
 674         /* Marshall data and send request */
 675
 676         status = netlogon_creds_cli_LogonSamLogon(creds_ctx,
 677                                                   binding_handle,
 678                                                   NetlogonNetworkInformation,
 679                                                   logon,
 680                                                   mem_ctx,
 681                                                   &validation_level,
 682                                                   &validation,
 683                                                   authoritative,
 684                                                   flags);
 685         if (!NT_STATUS_IS_OK(status)) {
 686                 return status;
 687         }
 688
 689         status = map_validation_to_info3(mem_ctx,
 690                                          validation_level, validation,
 691                                          info3);
 692         if (!NT_STATUS_IS_OK(status)) {
 693                 return status;
 694         }
 695
 696         return NT_STATUS_OK;
 697 }