source4/torture/rpc/schannel.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    test suite for schannel operations
   5
   6    Copyright (C) Andrew Tridgell 2004
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "librpc/gen_ndr/ndr_netlogon_c.h"
  24 #include "librpc/gen_ndr/ndr_lsa_c.h"
  25 #include "librpc/gen_ndr/ndr_samr_c.h"
  26 #include "auth/credentials/credentials.h"
  27 #include "torture/rpc/torture_rpc.h"
  28 #include "lib/cmdline/popt_common.h"
  29 #include "../libcli/auth/schannel.h"
  30 #include "libcli/auth/libcli_auth.h"
  31 #include "libcli/security/security.h"
  32 #include "system/filesys.h"
  33 #include "param/param.h"
  34 #include "librpc/rpc/dcerpc_proto.h"
  35 #include "libcli/composite/composite.h"
  36 #include "lib/events/events.h"
  37
  38 #define TEST_MACHINE_NAME "schannel"
  39
  40 /*
  41   try a netlogon SamLogon
  42 */
  43 bool test_netlogon_ex_ops(struct dcerpc_pipe *p, struct torture_context *tctx,
  44                           struct cli_credentials *credentials,
  45                           struct netlogon_creds_CredentialState *creds)
  46 {
  47         NTSTATUS status;
  48         struct netr_LogonSamLogonEx r;
  49         struct netr_NetworkInfo ninfo;
  50         union netr_LogonLevel logon;
  51         union netr_Validation validation;
  52         uint8_t authoritative = 0;
  53         uint32_t _flags = 0;
  54         DATA_BLOB names_blob, chal, lm_resp, nt_resp;
  55         int i;
  56         int flags = CLI_CRED_NTLM_AUTH;
  57         struct dcerpc_binding_handle *b = p->binding_handle;
  58
  59         struct netr_UserSessionKey key;
  60         struct netr_LMSessionKey LMSessKey;
  61         uint32_t validation_levels[] = { 2, 3 };
  62         struct netr_SamBaseInfo *base = NULL;
  63         const char *crypto_alg = "";
  64         bool can_do_validation_6 = true;
  65
  66         if (lpcfg_client_lanman_auth(tctx->lp_ctx)) {
  67                 flags |= CLI_CRED_LANMAN_AUTH;
  68         }
  69
  70         if (lpcfg_client_ntlmv2_auth(tctx->lp_ctx)) {
  71                 flags |= CLI_CRED_NTLMv2_AUTH;
  72         }
  73
  74         cli_credentials_get_ntlm_username_domain(cmdline_credentials, tctx,
  75                                                  &ninfo.identity_info.account_name.string,
  76                                                  &ninfo.identity_info.domain_name.string);
  77
  78         generate_random_buffer(ninfo.challenge,
  79                                sizeof(ninfo.challenge));
  80         chal = data_blob_const(ninfo.challenge,
  81                                sizeof(ninfo.challenge));
  82
  83         names_blob = NTLMv2_generate_names_blob(tctx, cli_credentials_get_workstation(credentials),
  84                                                 cli_credentials_get_domain(credentials));
  85
  86         status = cli_credentials_get_ntlm_response(cmdline_credentials, tctx,
  87                                                    &flags,
  88                                                    chal,
  89                                                    names_blob,
  90                                                    &lm_resp, &nt_resp,
  91                                                    NULL, NULL);
  92         torture_assert_ntstatus_ok(tctx, status,
  93                                    "cli_credentials_get_ntlm_response failed");
  94
  95         ninfo.lm.data = lm_resp.data;
  96         ninfo.lm.length = lm_resp.length;
  97
  98         ninfo.nt.data = nt_resp.data;
  99         ninfo.nt.length = nt_resp.length;
 100
 101         ninfo.identity_info.parameter_control = 0;
 102         ninfo.identity_info.logon_id_low = 0;
 103         ninfo.identity_info.logon_id_high = 0;
 104         ninfo.identity_info.workstation.string = cli_credentials_get_workstation(credentials);
 105
 106         logon.network = &ninfo;
 107
 108         r.in.server_name = talloc_asprintf(tctx, "\\\\%s", dcerpc_server_name(p));
 109         r.in.computer_name = cli_credentials_get_workstation(credentials);
 110         r.in.logon_level = NetlogonNetworkInformation;
 111         r.in.logon= &logon;
 112         r.in.flags = &_flags;
 113         r.out.validation = &validation;
 114         r.out.authoritative = &authoritative;
 115         r.out.flags = &_flags;
 116
 117         /*
 118         - retrieve level6
 119         - save usrsession and lmsession key
 120         - retrieve level 2
 121         - calculate, compare
 122         - retrieve level 3
 123         - calculate, compare
 124         */
 125
 126         if (creds) {
 127                 if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
 128                         crypto_alg = "AES";
 129                 } else if (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR) {
 130                         crypto_alg = "ARCFOUR";
 131                 }
 132         }
 133
 134         r.in.validation_level = 6;
 135
 136         torture_comment(tctx,
 137                         "Testing LogonSamLogonEx with name %s using %s and validation_level: %d\n",
 138                         ninfo.identity_info.account_name.string, crypto_alg,
 139                         r.in.validation_level);
 140
 141         torture_assert_ntstatus_ok(tctx,
 142                 dcerpc_netr_LogonSamLogonEx_r(b, tctx, &r),
 143                 "LogonSamLogonEx failed");
 144         if (NT_STATUS_EQUAL(r.out.result, NT_STATUS_INVALID_INFO_CLASS)) {
 145                 can_do_validation_6 = false;
 146         } else {
 147                 torture_assert_ntstatus_ok(tctx, r.out.result,
 148                         "LogonSamLogonEx failed");
 149
 150                 key = r.out.validation->sam6->base.key;
 151                 LMSessKey = r.out.validation->sam6->base.LMSessKey;
 152
 153                 DEBUG(1,("unencrypted session keys from validation_level 6:\n"));
 154                 dump_data(1, r.out.validation->sam6->base.key.key, 16);
 155                 dump_data(1, r.out.validation->sam6->base.LMSessKey.key, 8);
 156         }
 157
 158         for (i=0; i < ARRAY_SIZE(validation_levels); i++) {
 159
 160                 r.in.validation_level = validation_levels[i];
 161
 162                 torture_comment(tctx,
 163                         "Testing LogonSamLogonEx with name %s using %s and validation_level: %d\n",
 164                         ninfo.identity_info.account_name.string, crypto_alg,
 165                         r.in.validation_level);
 166
 167                 torture_assert_ntstatus_ok(tctx,
 168                         dcerpc_netr_LogonSamLogonEx_r(b, tctx, &r),
 169                         "LogonSamLogonEx failed");
 170                 torture_assert_ntstatus_ok(tctx, r.out.result,
 171                         "LogonSamLogonEx failed");
 172
 173                 if (creds == NULL) {
 174                         /* when this test is called without creds no point in
 175                          * testing the session keys */
 176                         continue;
 177                 }
 178
 179                 switch (validation_levels[i]) {
 180                 case 2:
 181                         base = &r.out.validation->sam2->base;
 182                         break;
 183                 case 3:
 184                         base = &r.out.validation->sam3->base;
 185                         break;
 186                 default:
 187                         break;
 188                 }
 189
 190                 DEBUG(1,("encrypted keys validation_level %d:\n",
 191                         validation_levels[i]));
 192                 dump_data(1, base->key.key, 16);
 193                 dump_data(1, base->LMSessKey.key, 8);
 194
 195                 if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
 196                         netlogon_creds_aes_decrypt(creds, base->key.key, 16);
 197                         netlogon_creds_aes_decrypt(creds, base->LMSessKey.key, 8);
 198                 } else if (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR) {
 199                         netlogon_creds_arcfour_crypt(creds, base->key.key, 16);
 200                         netlogon_creds_arcfour_crypt(creds, base->LMSessKey.key, 8);
 201                 }
 202
 203                 DEBUG(1,("decryped keys validation_level %d\n",
 204                         validation_levels[i]));
 205
 206                 dump_data(1, base->key.key, 16);
 207                 dump_data(1, base->LMSessKey.key, 8);
 208
 209                 if (!can_do_validation_6) {
 210                         /* we cant compare against unencrypted keys */
 211                         continue;
 212                 }
 213
 214                 torture_assert_mem_equal(tctx,
 215                                          base->key.key,
 216                                          key.key,
 217                                          16,
 218                                          "unexpected user session key\n");
 219                 torture_assert_mem_equal(tctx,
 220                                          base->LMSessKey.key,
 221                                          LMSessKey.key,
 222                                          8,
 223                                          "unexpected LM session key\n");
 224         }
 225
 226         return true;
 227 }
 228
 229 /*
 230   do some samr ops using the schannel connection
 231  */
 232 static bool test_samr_ops(struct torture_context *tctx,
 233                           struct dcerpc_binding_handle *b)
 234 {
 235         struct samr_GetDomPwInfo r;
 236         struct samr_PwInfo info;
 237         struct samr_Connect connect_r;
 238         struct samr_OpenDomain opendom;
 239         int i;
 240         struct lsa_String name;
 241         struct policy_handle handle;
 242         struct policy_handle domain_handle;
 243
 244         name.string = lpcfg_workgroup(tctx->lp_ctx);
 245         r.in.domain_name = &name;
 246         r.out.info = &info;
 247
 248         connect_r.in.system_name = 0;
 249         connect_r.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 250         connect_r.out.connect_handle = &handle;
 251
 252         torture_comment(tctx, "Testing Connect and OpenDomain on BUILTIN\n");
 253
 254         torture_assert_ntstatus_ok(tctx, dcerpc_samr_Connect_r(b, tctx, &connect_r),
 255                 "Connect failed");
 256         if (!NT_STATUS_IS_OK(connect_r.out.result)) {
 257                 if (NT_STATUS_EQUAL(connect_r.out.result, NT_STATUS_ACCESS_DENIED)) {
 258                         torture_comment(tctx, "Connect failed (expected, schannel mapped to anonymous): %s\n",
 259                                nt_errstr(connect_r.out.result));
 260                 } else {
 261                         torture_comment(tctx, "Connect failed - %s\n", nt_errstr(connect_r.out.result));
 262                         return false;
 263                 }
 264         } else {
 265                 opendom.in.connect_handle = &handle;
 266                 opendom.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 267                 opendom.in.sid = dom_sid_parse_talloc(tctx, "S-1-5-32");
 268                 opendom.out.domain_handle = &domain_handle;
 269
 270                 torture_assert_ntstatus_ok(tctx, dcerpc_samr_OpenDomain_r(b, tctx, &opendom),
 271                         "OpenDomain failed");
 272                 if (!NT_STATUS_IS_OK(opendom.out.result)) {
 273                         torture_comment(tctx, "OpenDomain failed - %s\n", nt_errstr(opendom.out.result));
 274                         return false;
 275                 }
 276         }
 277
 278         torture_comment(tctx, "Testing GetDomPwInfo with name %s\n", r.in.domain_name->string);
 279
 280         /* do several ops to test credential chaining */
 281         for (i=0;i<5;i++) {
 282                 torture_assert_ntstatus_ok(tctx, dcerpc_samr_GetDomPwInfo_r(b, tctx, &r),
 283                         "GetDomPwInfo failed");
 284                 if (!NT_STATUS_IS_OK(r.out.result)) {
 285                         if (!NT_STATUS_EQUAL(r.out.result, NT_STATUS_ACCESS_DENIED)) {
 286                                 torture_comment(tctx, "GetDomPwInfo op %d failed - %s\n", i, nt_errstr(r.out.result));
 287                                 return false;
 288                         }
 289                 }
 290         }
 291
 292         return true;
 293 }
 294
 295
 296 /*
 297   do some lsa ops using the schannel connection
 298  */
 299 static bool test_lsa_ops(struct torture_context *tctx, struct dcerpc_pipe *p)
 300 {
 301         struct lsa_GetUserName r;
 302         bool ret = true;
 303         struct lsa_String *account_name_p = NULL;
 304         struct lsa_String *authority_name_p = NULL;
 305         struct dcerpc_binding_handle *b = p->binding_handle;
 306
 307         torture_comment(tctx, "\nTesting GetUserName\n");
 308
 309         r.in.system_name = "\\";
 310         r.in.account_name = &account_name_p;
 311         r.in.authority_name = &authority_name_p;
 312         r.out.account_name = &account_name_p;
 313
 314         /* do several ops to test credential chaining and various operations */
 315         torture_assert_ntstatus_ok(tctx, dcerpc_lsa_GetUserName_r(b, tctx, &r),
 316                 "lsa_GetUserName failed");
 317
 318         authority_name_p = *r.out.authority_name;
 319
 320         if (!NT_STATUS_IS_OK(r.out.result)) {
 321                 torture_comment(tctx, "GetUserName failed - %s\n", nt_errstr(r.out.result));
 322                 return false;
 323         } else {
 324                 if (!r.out.account_name) {
 325                         return false;
 326                 }
 327
 328                 if (strcmp(account_name_p->string, "ANONYMOUS LOGON") != 0) {
 329                         torture_comment(tctx, "GetUserName returned wrong user: %s, expected %s\n",
 330                                account_name_p->string, "ANONYMOUS LOGON");
 331                         /* FIXME: gd */
 332                         if (!torture_setting_bool(tctx, "samba3", false)) {
 333                                 return false;
 334                         }
 335                 }
 336                 if (!authority_name_p || !authority_name_p->string) {
 337                         return false;
 338                 }
 339
 340                 if (strcmp(authority_name_p->string, "NT AUTHORITY") != 0) {
 341                         torture_comment(tctx, "GetUserName returned wrong user: %s, expected %s\n",
 342                                authority_name_p->string, "NT AUTHORITY");
 343                         /* FIXME: gd */
 344                         if (!torture_setting_bool(tctx, "samba3", false)) {
 345                                 return false;
 346                         }
 347                 }
 348         }
 349
 350         return ret;
 351 }
 352
 353
 354 /*
 355   test a schannel connection with the given flags
 356  */
 357 static bool test_schannel(struct torture_context *tctx,
 358                           uint16_t acct_flags, uint32_t dcerpc_flags,
 359                           int i)
 360 {
 361         struct test_join *join_ctx;
 362         NTSTATUS status;
 363         const char *binding = torture_setting_string(tctx, "binding", NULL);
 364         struct dcerpc_binding *b;
 365         struct dcerpc_pipe *p = NULL;
 366         struct dcerpc_pipe *p_netlogon = NULL;
 367         struct dcerpc_pipe *p_netlogon2 = NULL;
 368         struct dcerpc_pipe *p_netlogon3 = NULL;
 369         struct dcerpc_pipe *p_samr2 = NULL;
 370         struct dcerpc_pipe *p_lsa = NULL;
 371         struct netlogon_creds_CredentialState *creds;
 372         struct cli_credentials *credentials;
 373         enum dcerpc_transport_t transport;
 374
 375         join_ctx = torture_join_domain(tctx,
 376                                        talloc_asprintf(tctx, "%s%d", TEST_MACHINE_NAME, i),
 377                                        acct_flags, &credentials);
 378         torture_assert(tctx, join_ctx != NULL, "Failed to join domain");
 379
 380         status = dcerpc_parse_binding(tctx, binding, &b);
 381         torture_assert_ntstatus_ok(tctx, status, "Bad binding string");
 382
 383         status = dcerpc_binding_set_flags(b, dcerpc_flags, DCERPC_AUTH_OPTIONS);
 384         torture_assert_ntstatus_ok(tctx, status, "set flags");
 385
 386         status = dcerpc_pipe_connect_b(tctx, &p, b, &ndr_table_samr,
 387                                        credentials, tctx->ev, tctx->lp_ctx);
 388         torture_assert_ntstatus_ok(tctx, status,
 389                 "Failed to connect to samr with schannel");
 390
 391         torture_assert(tctx, test_samr_ops(tctx, p->binding_handle),
 392                        "Failed to process schannel secured SAMR ops");
 393
 394         /* Also test that when we connect to the netlogon pipe, that
 395          * the credentials we setup on the first pipe are valid for
 396          * the second */
 397
 398         /* Swap the binding details from SAMR to NETLOGON */
 399         status = dcerpc_epm_map_binding(tctx, b, &ndr_table_netlogon, tctx->ev, tctx->lp_ctx);
 400         torture_assert_ntstatus_ok(tctx, status, "epm map");
 401
 402         status = dcerpc_binding_set_flags(b, dcerpc_flags, DCERPC_AUTH_OPTIONS);
 403         torture_assert_ntstatus_ok(tctx, status, "set flags");
 404
 405         status = dcerpc_secondary_auth_connection(p, b, &ndr_table_netlogon,
 406                                                   credentials, tctx->lp_ctx,
 407                                                   tctx, &p_netlogon);
 408         torture_assert_ntstatus_ok(tctx, status, "Failed to create secondary connection");
 409
 410         creds = cli_credentials_get_netlogon_creds(credentials);
 411         torture_assert(tctx, (creds != NULL), "schannel creds");
 412
 413         /* checks the capabilities */
 414         torture_assert(tctx, test_netlogon_capabilities(p_netlogon, tctx, credentials, creds),
 415                        "Failed to process schannel secured capability ops (on fresh connection)");
 416
 417         /* do a couple of logins */
 418         torture_assert(tctx, test_netlogon_ops(p_netlogon, tctx, credentials, creds),
 419                 "Failed to process schannel secured NETLOGON ops");
 420
 421         torture_assert(tctx, test_netlogon_ex_ops(p_netlogon, tctx, credentials, creds),
 422                 "Failed to process schannel secured NETLOGON EX ops");
 423
 424         /* we *MUST* use ncacn_np for openpolicy etc. */
 425         transport = dcerpc_binding_get_transport(b);
 426         status = dcerpc_binding_set_transport(b, NCACN_NP);
 427         torture_assert_ntstatus_ok(tctx, status, "set transport");
 428
 429         /* Swap the binding details from SAMR to LSARPC */
 430         status = dcerpc_epm_map_binding(tctx, b, &ndr_table_lsarpc, tctx->ev, tctx->lp_ctx);
 431         torture_assert_ntstatus_ok(tctx, status, "epm map");
 432
 433         torture_assert_ntstatus_ok(tctx,
 434                 dcerpc_pipe_connect_b(tctx, &p_lsa, b, &ndr_table_lsarpc,
 435                                       credentials, tctx->ev, tctx->lp_ctx),
 436                 "failed to connect lsarpc with schannel");
 437
 438         torture_assert(tctx, test_lsa_ops(tctx, p_lsa),
 439                 "Failed to process schannel secured LSA ops");
 440
 441         talloc_free(p_lsa);
 442         p_lsa = NULL;
 443
 444         /* we *MUST* use ncacn_ip_tcp for lookupsids3/lookupnames4 */
 445         status = dcerpc_binding_set_transport(b, NCACN_IP_TCP);
 446         torture_assert_ntstatus_ok(tctx, status, "set transport");
 447
 448         torture_assert_ntstatus_ok(tctx,
 449                 dcerpc_epm_map_binding(tctx, b, &ndr_table_lsarpc, tctx->ev, tctx->lp_ctx),
 450                 "failed to call epm map");
 451
 452         torture_assert_ntstatus_ok(tctx,
 453                 dcerpc_pipe_connect_b(tctx, &p_lsa, b, &ndr_table_lsarpc,
 454                                       credentials, tctx->ev, tctx->lp_ctx),
 455                 "failed to connect lsarpc with schannel");
 456
 457         torture_assert(tctx,
 458                 test_many_LookupSids(p_lsa, tctx, NULL),
 459                 "LsaLookupSids3 failed!\n");
 460
 461         status = dcerpc_binding_set_transport(b, transport);
 462         torture_assert_ntstatus_ok(tctx, status, "set transport");
 463
 464
 465         /* Drop the socket, we want to start from scratch */
 466         talloc_free(p);
 467         p = NULL;
 468
 469         /* Now see what we are still allowed to do */
 470
 471         status = dcerpc_parse_binding(tctx, binding, &b);
 472         torture_assert_ntstatus_ok(tctx, status, "Bad binding string");
 473
 474         status = dcerpc_binding_set_flags(b, dcerpc_flags, DCERPC_AUTH_OPTIONS);
 475         torture_assert_ntstatus_ok(tctx, status, "set flags");
 476
 477         status = dcerpc_pipe_connect_b(tctx, &p_samr2, b, &ndr_table_samr,
 478                                        credentials, tctx->ev, tctx->lp_ctx);
 479         torture_assert_ntstatus_ok(tctx, status,
 480                 "Failed to connect with schannel");
 481
 482         /* do a some SAMR operations.  We have *not* done a new serverauthenticate */
 483         torture_assert (tctx, test_samr_ops(tctx, p_samr2->binding_handle),
 484                         "Failed to process schannel secured SAMR ops (on fresh connection)");
 485
 486         /* Swap the binding details from SAMR to NETLOGON */
 487         status = dcerpc_epm_map_binding(tctx, b, &ndr_table_netlogon, tctx->ev, tctx->lp_ctx);
 488         torture_assert_ntstatus_ok(tctx, status, "epm");
 489
 490         status = dcerpc_binding_set_flags(b, dcerpc_flags, DCERPC_AUTH_OPTIONS);
 491         torture_assert_ntstatus_ok(tctx, status, "set flags");
 492
 493         status = dcerpc_secondary_auth_connection(p_samr2, b, &ndr_table_netlogon,
 494                                                   credentials, tctx->lp_ctx,
 495                                                   tctx, &p_netlogon2);
 496         torture_assert_ntstatus_ok(tctx, status, "Failed to create secondary connection");
 497
 498         /* checks the capabilities */
 499         torture_assert(tctx, test_netlogon_capabilities(p_netlogon2, tctx, credentials, creds),
 500                        "Failed to process schannel secured capability ops (on fresh connection)");
 501
 502         /* Try the schannel-only SamLogonEx operation */
 503         torture_assert(tctx, test_netlogon_ex_ops(p_netlogon2, tctx, credentials, creds),
 504                        "Failed to process schannel secured NETLOGON EX ops (on fresh connection)");
 505
 506
 507         /* And the more traditional style, proving that the
 508          * credentials chaining state is fully present */
 509         torture_assert(tctx, test_netlogon_ops(p_netlogon2, tctx, credentials, creds),
 510                              "Failed to process schannel secured NETLOGON ops (on fresh connection)");
 511
 512         /* Drop the socket, we want to start from scratch (again) */
 513         talloc_free(p_samr2);
 514
 515         /* We don't want schannel for this test */
 516         status = dcerpc_binding_set_flags(b, 0, DCERPC_AUTH_OPTIONS);
 517         torture_assert_ntstatus_ok(tctx, status, "set flags");
 518
 519         status = dcerpc_pipe_connect_b(tctx, &p_netlogon3, b, &ndr_table_netlogon,
 520                                        credentials, tctx->ev, tctx->lp_ctx);
 521         torture_assert_ntstatus_ok(tctx, status, "Failed to connect without schannel");
 522
 523         torture_assert(tctx, !test_netlogon_ex_ops(p_netlogon3, tctx, credentials, creds),
 524                         "Processed NOT schannel secured NETLOGON EX ops without SCHANNEL (unsafe)");
 525
 526         /* Required because the previous call will mark the current context as having failed */
 527         tctx->last_result = TORTURE_OK;
 528         tctx->last_reason = NULL;
 529
 530         torture_assert(tctx, test_netlogon_ops(p_netlogon3, tctx, credentials, creds),
 531                         "Failed to processed NOT schannel secured NETLOGON ops without new ServerAuth");
 532
 533         torture_leave_domain(tctx, join_ctx);
 534         return true;
 535 }
 536
 537 /*
 538  * Purpose of this test is to demonstrate that a netlogon server carefully deals
 539  * with anonymous attempts to set passwords, in particular when the server
 540  * enforces the use of schannel. This test makes most sense to be run in an
 541  * environment where the netlogon server enforces use of schannel.
 542  */
 543
 544 static bool test_schannel_anonymous_setPassword(struct torture_context *tctx,
 545                                                 uint32_t dcerpc_flags,
 546                                                 bool use2)
 547 {
 548         NTSTATUS status, result;
 549         const char *binding = torture_setting_string(tctx, "binding", NULL);
 550         struct dcerpc_binding *b;
 551         struct dcerpc_pipe *p = NULL;
 552         struct cli_credentials *credentials;
 553         bool ok = true;
 554
 555         credentials = cli_credentials_init(NULL);
 556         torture_assert(tctx, credentials != NULL, "Bad credentials");
 557         cli_credentials_set_anonymous(credentials);
 558
 559         status = dcerpc_parse_binding(tctx, binding, &b);
 560         torture_assert_ntstatus_ok(tctx, status, "Bad binding string");
 561
 562         status = dcerpc_binding_set_flags(b, dcerpc_flags, DCERPC_AUTH_OPTIONS);
 563         torture_assert_ntstatus_ok(tctx, status, "set flags");
 564
 565         status = dcerpc_pipe_connect_b(tctx,
 566                                        &p,
 567                                        b,
 568                                        &ndr_table_netlogon,
 569                                        credentials,
 570                                        tctx->ev,
 571                                        tctx->lp_ctx);
 572         torture_assert_ntstatus_ok(tctx, status, "Failed to connect without schannel");
 573
 574         if (use2) {
 575                 struct netr_ServerPasswordSet2 r = {};
 576                 struct netr_Authenticator credential = {};
 577                 struct netr_Authenticator return_authenticator = {};
 578                 struct netr_CryptPassword new_password = {};
 579
 580                 r.in.server_name = talloc_asprintf(tctx, "\\\\%s", dcerpc_server_name(p));
 581                 r.in.account_name = talloc_asprintf(tctx, "%s$", TEST_MACHINE_NAME);
 582                 r.in.secure_channel_type = 0;
 583                 r.in.computer_name = TEST_MACHINE_NAME;
 584                 r.in.credential = &credential;
 585                 r.in.new_password = &new_password;
 586                 r.out.return_authenticator = &return_authenticator;
 587
 588                 status = dcerpc_netr_ServerPasswordSet2_r(p->binding_handle, tctx, &r);
 589                 result = r.out.result;
 590         } else {
 591                 struct netr_ServerPasswordSet r = {};
 592                 struct netr_Authenticator credential = {};
 593                 struct netr_Authenticator return_authenticator = {};
 594                 struct samr_Password new_password = {};
 595
 596                 r.in.server_name = talloc_asprintf(tctx, "\\\\%s", dcerpc_server_name(p));
 597                 r.in.account_name = talloc_asprintf(tctx, "%s$", TEST_MACHINE_NAME);
 598                 r.in.secure_channel_type = 0;
 599                 r.in.computer_name = TEST_MACHINE_NAME;
 600                 r.in.credential = &credential;
 601                 r.in.new_password = &new_password;
 602                 r.out.return_authenticator = &return_authenticator;
 603
 604                 status = dcerpc_netr_ServerPasswordSet_r(p->binding_handle, tctx, &r);
 605                 result = r.out.result;
 606         }
 607
 608         torture_assert_ntstatus_ok(tctx, status, "ServerPasswordSet failed");
 609
 610         if (NT_STATUS_IS_OK(result)) {
 611                 torture_fail(tctx, "unexpectedly received NT_STATUS_OK");
 612         }
 613
 614         return ok;
 615 }
 616
 617
 618 /*
 619   a schannel test suite
 620  */
 621 bool torture_rpc_schannel(struct torture_context *torture)
 622 {
 623         bool ret = true;
 624         struct {
 625                 uint16_t acct_flags;
 626                 uint32_t dcerpc_flags;
 627         } tests[] = {
 628                 { ACB_WSTRUST,   DCERPC_SCHANNEL | DCERPC_SIGN | DCERPC_SCHANNEL_AUTO},
 629                 { ACB_WSTRUST,   DCERPC_SCHANNEL | DCERPC_SEAL | DCERPC_SCHANNEL_AUTO},
 630                 { ACB_WSTRUST,   DCERPC_SCHANNEL | DCERPC_SIGN | DCERPC_SCHANNEL_128},
 631                 { ACB_WSTRUST,   DCERPC_SCHANNEL | DCERPC_SEAL | DCERPC_SCHANNEL_128 },
 632                 { ACB_WSTRUST,   DCERPC_SCHANNEL | DCERPC_SIGN | DCERPC_SCHANNEL_AES},
 633                 { ACB_WSTRUST,   DCERPC_SCHANNEL | DCERPC_SEAL | DCERPC_SCHANNEL_AES },
 634                 { ACB_SVRTRUST,  DCERPC_SCHANNEL | DCERPC_SIGN | DCERPC_SCHANNEL_AUTO},
 635                 { ACB_SVRTRUST,  DCERPC_SCHANNEL | DCERPC_SEAL | DCERPC_SCHANNEL_AUTO},
 636                 { ACB_SVRTRUST,  DCERPC_SCHANNEL | DCERPC_SIGN | DCERPC_SCHANNEL_128 },
 637                 { ACB_SVRTRUST,  DCERPC_SCHANNEL | DCERPC_SEAL | DCERPC_SCHANNEL_128 },
 638                 { ACB_SVRTRUST,  DCERPC_SCHANNEL | DCERPC_SIGN | DCERPC_SCHANNEL_AES },
 639                 { ACB_SVRTRUST,  DCERPC_SCHANNEL | DCERPC_SEAL | DCERPC_SCHANNEL_AES }
 640         };
 641         int i;
 642
 643         for (i=0;i<ARRAY_SIZE(tests);i++) {
 644                 torture_comment(torture, "Testing with acct_flags=0x%x dcerpc_flags=0x%x \n",
 645                        tests[i].acct_flags, tests[i].dcerpc_flags);
 646
 647                 if (!test_schannel(torture,
 648                                    tests[i].acct_flags, tests[i].dcerpc_flags,
 649                                    i)) {
 650                         torture_comment(torture, "Failed with acct_flags=0x%x dcerpc_flags=0x%x \n",
 651                                tests[i].acct_flags, tests[i].dcerpc_flags);
 652                         ret = false;
 653                 }
 654         }
 655
 656         return ret;
 657 }
 658
 659 bool torture_rpc_schannel_anon_setpw(struct torture_context *torture)
 660 {
 661         bool ret = true;
 662         bool ok;
 663         uint32_t dcerpc_flags = DCERPC_SCHANNEL | DCERPC_SIGN | DCERPC_SCHANNEL_AUTO;
 664
 665         ok = test_schannel_anonymous_setPassword(torture,
 666                                                  dcerpc_flags,
 667                                                  true);
 668         if (!ok) {
 669                 torture_comment(torture,
 670                                 "Failed with dcerpc_flags=0x%x\n",
 671                                 dcerpc_flags);
 672                 ret = false;
 673         }
 674
 675         ok = test_schannel_anonymous_setPassword(torture,
 676                                                  dcerpc_flags,
 677                                                  false);
 678         if (!ok) {
 679                 torture_comment(torture,
 680                                 "Failed with dcerpc_flags=0x%x\n",
 681                                 dcerpc_flags);
 682                 ret = false;
 683         }
 684
 685         return ret;
 686 }
 687
 688 /*
 689   test two schannel connections
 690  */
 691 bool torture_rpc_schannel2(struct torture_context *torture)
 692 {
 693         struct test_join *join_ctx;
 694         NTSTATUS status;
 695         const char *binding = torture_setting_string(torture, "binding", NULL);
 696         struct dcerpc_binding *b;
 697         struct dcerpc_pipe *p1 = NULL, *p2 = NULL;
 698         struct cli_credentials *credentials1, *credentials2;
 699         uint32_t dcerpc_flags = DCERPC_SCHANNEL | DCERPC_SIGN;
 700
 701         join_ctx = torture_join_domain(torture, talloc_asprintf(torture, "%s2", TEST_MACHINE_NAME),
 702                                        ACB_WSTRUST, &credentials1);
 703         torture_assert(torture, join_ctx != NULL,
 704                        "Failed to join domain with acct_flags=ACB_WSTRUST");
 705
 706         credentials2 = cli_credentials_shallow_copy(torture, credentials1);
 707         cli_credentials_set_netlogon_creds(credentials1, NULL);
 708         cli_credentials_set_netlogon_creds(credentials2, NULL);
 709
 710         status = dcerpc_parse_binding(torture, binding, &b);
 711         torture_assert_ntstatus_ok(torture, status, "Bad binding string");
 712
 713         status = dcerpc_binding_set_flags(b, dcerpc_flags, DCERPC_AUTH_OPTIONS);
 714         torture_assert_ntstatus_ok(torture, status, "set flags");
 715
 716         torture_comment(torture, "Opening first connection\n");
 717         status = dcerpc_pipe_connect_b(torture, &p1, b, &ndr_table_netlogon,
 718                                        credentials1, torture->ev, torture->lp_ctx);
 719         torture_assert_ntstatus_ok(torture, status, "Failed to connect with schannel");
 720
 721         torture_comment(torture, "Opening second connection\n");
 722         status = dcerpc_pipe_connect_b(torture, &p2, b, &ndr_table_netlogon,
 723                                        credentials2, torture->ev, torture->lp_ctx);
 724         torture_assert_ntstatus_ok(torture, status, "Failed to connect with schannel");
 725
 726         cli_credentials_set_netlogon_creds(credentials1, NULL);
 727         cli_credentials_set_netlogon_creds(credentials2, NULL);
 728
 729         torture_comment(torture, "Testing logon on pipe1\n");
 730         if (!test_netlogon_ex_ops(p1, torture, credentials1, NULL))
 731                 return false;
 732
 733         torture_comment(torture, "Testing logon on pipe2\n");
 734         if (!test_netlogon_ex_ops(p2, torture, credentials2, NULL))
 735                 return false;
 736
 737         torture_comment(torture, "Again on pipe1\n");
 738         if (!test_netlogon_ex_ops(p1, torture, credentials1, NULL))
 739                 return false;
 740
 741         torture_comment(torture, "Again on pipe2\n");
 742         if (!test_netlogon_ex_ops(p2, torture, credentials2, NULL))
 743                 return false;
 744
 745         torture_leave_domain(torture, join_ctx);
 746         return true;
 747 }
 748
 749 struct torture_schannel_bench;
 750
 751 struct torture_schannel_bench_conn {
 752         struct torture_schannel_bench *s;
 753         int index;
 754         struct cli_credentials *wks_creds;
 755         struct dcerpc_pipe *pipe;
 756         struct netr_LogonSamLogonEx r;
 757         struct netr_NetworkInfo ninfo;
 758         TALLOC_CTX *tmp;
 759         uint64_t total;
 760         uint32_t count;
 761 };
 762
 763 struct torture_schannel_bench {
 764         struct torture_context *tctx;
 765         bool progress;
 766         int timelimit;
 767         int nprocs;
 768         int nconns;
 769         struct torture_schannel_bench_conn *conns;
 770         struct test_join *join_ctx1;
 771         struct cli_credentials *wks_creds1;
 772         struct test_join *join_ctx2;
 773         struct cli_credentials *wks_creds2;
 774         struct cli_credentials *user1_creds;
 775         struct cli_credentials *user2_creds;
 776         struct dcerpc_binding *b;
 777         NTSTATUS error;
 778         uint64_t total;
 779         uint32_t count;
 780         bool stopped;
 781 };
 782
 783 #if 0
 784 static void torture_schannel_bench_connected(struct composite_context *c)
 785 {
 786         struct torture_schannel_bench_conn *conn =
 787                 (struct torture_schannel_bench_conn *)c->async.private_data;
 788         struct torture_schannel_bench *s = talloc_get_type(conn->s,
 789                                            struct torture_schannel_bench);
 790
 791         s->error = dcerpc_pipe_connect_b_recv(c, s->conns, &conn->pipe);
 792         torture_comment(s->tctx, "conn[%u]: %s\n", conn->index, nt_errstr(s->error));
 793         if (NT_STATUS_IS_OK(s->error)) {
 794                 s->nconns++;
 795         }
 796 }
 797 #endif
 798
 799 static void torture_schannel_bench_recv(struct tevent_req *subreq);
 800
 801 static bool torture_schannel_bench_start(struct torture_schannel_bench_conn *conn)
 802 {
 803         struct torture_schannel_bench *s = conn->s;
 804         NTSTATUS status;
 805         DATA_BLOB names_blob, chal, lm_resp, nt_resp;
 806         int flags = CLI_CRED_NTLM_AUTH;
 807         struct tevent_req *subreq;
 808         struct cli_credentials *user_creds;
 809
 810         if (conn->total % 2) {
 811                 user_creds = s->user1_creds;
 812         } else {
 813                 user_creds = s->user2_creds;
 814         }
 815
 816         if (lpcfg_client_lanman_auth(s->tctx->lp_ctx)) {
 817                 flags |= CLI_CRED_LANMAN_AUTH;
 818         }
 819
 820         if (lpcfg_client_ntlmv2_auth(s->tctx->lp_ctx)) {
 821                 flags |= CLI_CRED_NTLMv2_AUTH;
 822         }
 823
 824         talloc_free(conn->tmp);
 825         conn->tmp = talloc_new(s);
 826         ZERO_STRUCT(conn->ninfo);
 827         ZERO_STRUCT(conn->r);
 828
 829         cli_credentials_get_ntlm_username_domain(user_creds, conn->tmp,
 830                                                  &conn->ninfo.identity_info.account_name.string,
 831                                                  &conn->ninfo.identity_info.domain_name.string);
 832
 833         generate_random_buffer(conn->ninfo.challenge,
 834                                sizeof(conn->ninfo.challenge));
 835         chal = data_blob_const(conn->ninfo.challenge,
 836                                sizeof(conn->ninfo.challenge));
 837
 838         names_blob = NTLMv2_generate_names_blob(conn->tmp,
 839                                                 cli_credentials_get_workstation(conn->wks_creds),
 840                                                 cli_credentials_get_domain(conn->wks_creds));
 841
 842         status = cli_credentials_get_ntlm_response(user_creds, conn->tmp,
 843                                                    &flags,
 844                                                    chal,
 845                                                    names_blob,
 846                                                    &lm_resp, &nt_resp,
 847                                                    NULL, NULL);
 848         torture_assert_ntstatus_ok(s->tctx, status,
 849                                    "cli_credentials_get_ntlm_response failed");
 850
 851         conn->ninfo.lm.data = lm_resp.data;
 852         conn->ninfo.lm.length = lm_resp.length;
 853
 854         conn->ninfo.nt.data = nt_resp.data;
 855         conn->ninfo.nt.length = nt_resp.length;
 856
 857         conn->ninfo.identity_info.parameter_control = 0;
 858         conn->ninfo.identity_info.logon_id_low = 0;
 859         conn->ninfo.identity_info.logon_id_high = 0;
 860         conn->ninfo.identity_info.workstation.string = cli_credentials_get_workstation(conn->wks_creds);
 861
 862         conn->r.in.server_name = talloc_asprintf(conn->tmp, "\\\\%s", dcerpc_server_name(conn->pipe));
 863         conn->r.in.computer_name = cli_credentials_get_workstation(conn->wks_creds);
 864         conn->r.in.logon_level = NetlogonNetworkInformation;
 865         conn->r.in.logon = talloc(conn->tmp, union netr_LogonLevel);
 866         conn->r.in.logon->network = &conn->ninfo;
 867         conn->r.in.flags = talloc(conn->tmp, uint32_t);
 868         conn->r.in.validation_level = 2;
 869         conn->r.out.validation = talloc(conn->tmp, union netr_Validation);
 870         conn->r.out.authoritative = talloc(conn->tmp, uint8_t);
 871         conn->r.out.flags = conn->r.in.flags;
 872
 873         subreq = dcerpc_netr_LogonSamLogonEx_r_send(s, s->tctx->ev,
 874                                                     conn->pipe->binding_handle,
 875                                                     &conn->r);
 876         torture_assert(s->tctx, subreq, "Failed to setup LogonSamLogonEx request");
 877
 878         tevent_req_set_callback(subreq, torture_schannel_bench_recv, conn);
 879
 880         return true;
 881 }
 882
 883 static void torture_schannel_bench_recv(struct tevent_req *subreq)
 884 {
 885         bool ret;
 886         struct torture_schannel_bench_conn *conn =
 887                 (struct torture_schannel_bench_conn *)tevent_req_callback_data_void(subreq);
 888         struct torture_schannel_bench *s = talloc_get_type(conn->s,
 889                                            struct torture_schannel_bench);
 890
 891         s->error = dcerpc_netr_LogonSamLogonEx_r_recv(subreq, subreq);
 892         TALLOC_FREE(subreq);
 893         if (!NT_STATUS_IS_OK(s->error)) {
 894                 return;
 895         }
 896
 897         conn->total++;
 898         conn->count++;
 899
 900         if (s->stopped) {
 901                 return;
 902         }
 903
 904         ret = torture_schannel_bench_start(conn);
 905         if (!ret) {
 906                 s->error = NT_STATUS_INTERNAL_ERROR;
 907         }
 908 }
 909
 910 /*
 911   test multiple schannel connection in parallel
 912  */
 913 bool torture_rpc_schannel_bench1(struct torture_context *torture)
 914 {
 915         bool ret = true;
 916         NTSTATUS status;
 917         const char *binding = torture_setting_string(torture, "binding", NULL);
 918         struct torture_schannel_bench *s;
 919         struct timeval start;
 920         struct timeval end;
 921         int i;
 922         const char *tmp;
 923
 924         s = talloc_zero(torture, struct torture_schannel_bench);
 925         s->tctx = torture;
 926         s->progress = torture_setting_bool(torture, "progress", true);
 927         s->timelimit = torture_setting_int(torture, "timelimit", 10);
 928         s->nprocs = torture_setting_int(torture, "nprocs", 4);
 929         s->conns = talloc_zero_array(s, struct torture_schannel_bench_conn, s->nprocs);
 930
 931         s->user1_creds = cli_credentials_shallow_copy(s, cmdline_credentials);
 932         tmp = torture_setting_string(s->tctx, "extra_user1", NULL);
 933         if (tmp) {
 934                 cli_credentials_parse_string(s->user1_creds, tmp, CRED_SPECIFIED);
 935         }
 936         s->user2_creds = cli_credentials_shallow_copy(s, cmdline_credentials);
 937         tmp = torture_setting_string(s->tctx, "extra_user2", NULL);
 938         if (tmp) {
 939                 cli_credentials_parse_string(s->user1_creds, tmp, CRED_SPECIFIED);
 940         }
 941
 942         s->join_ctx1 = torture_join_domain(s->tctx, talloc_asprintf(s, "%sb", TEST_MACHINE_NAME),
 943                                            ACB_WSTRUST, &s->wks_creds1);
 944         torture_assert(torture, s->join_ctx1 != NULL,
 945                        "Failed to join domain with acct_flags=ACB_WSTRUST");
 946         s->join_ctx2 = torture_join_domain(s->tctx, talloc_asprintf(s, "%sc", TEST_MACHINE_NAME),
 947                                            ACB_WSTRUST, &s->wks_creds2);
 948         torture_assert(torture, s->join_ctx2 != NULL,
 949                        "Failed to join domain with acct_flags=ACB_WSTRUST");
 950
 951         cli_credentials_set_kerberos_state(s->wks_creds1, CRED_DONT_USE_KERBEROS);
 952         cli_credentials_set_kerberos_state(s->wks_creds2, CRED_DONT_USE_KERBEROS);
 953
 954         for (i=0; i < s->nprocs; i++) {
 955                 struct cli_credentials *wks = s->wks_creds1;
 956
 957                 if ((i % 2) && (torture_setting_bool(torture, "multijoin", false))) {
 958                         wks = s->wks_creds2;
 959                 }
 960
 961                 s->conns[i].s = s;
 962                 s->conns[i].index = i;
 963                 s->conns[i].wks_creds = cli_credentials_shallow_copy(s->conns, wks);
 964                 cli_credentials_set_netlogon_creds(s->conns[i].wks_creds, NULL);
 965         }
 966
 967         status = dcerpc_parse_binding(s, binding, &s->b);
 968         torture_assert_ntstatus_ok(torture, status, "Bad binding string");
 969
 970         status = dcerpc_binding_set_flags(s->b, DCERPC_SCHANNEL | DCERPC_SIGN,
 971                                           DCERPC_AUTH_OPTIONS);
 972         torture_assert_ntstatus_ok(torture, status, "set flags");
 973
 974         torture_comment(torture, "Opening %d connections in parallel\n", s->nprocs);
 975         for (i=0; i < s->nprocs; i++) {
 976 #if 1
 977                 s->error = dcerpc_pipe_connect_b(s->conns, &s->conns[i].pipe, s->b,
 978                                                  &ndr_table_netlogon,
 979                                                  s->conns[i].wks_creds,
 980                                                  torture->ev, torture->lp_ctx);
 981                 torture_assert_ntstatus_ok(torture, s->error, "Failed to connect with schannel");
 982 #else
 983                 /*
 984                  * This path doesn't work against windows,
 985                  * because of windows drops the connections
 986                  * which haven't reached a session setup yet
 987                  *
 988                  * The same as the reset on zero vc stuff.
 989                  */
 990                 struct composite_context *c;
 991                 c = dcerpc_pipe_connect_b_send(s->conns, s->b,
 992                                                &ndr_table_netlogon,
 993                                                s->conns[i].wks_creds,
 994                                                torture->ev,
 995                                                torture->lp_ctx);
 996                 torture_assert(torture, c != NULL, "Failed to setup connect");
 997                 c->async.fn = torture_schannel_bench_connected;
 998                 c->async.private_data = &s->conns[i];
 999         }
1000
1001         while (NT_STATUS_IS_OK(s->error) && s->nprocs != s->nconns) {
1002                 int ev_ret = tevent_loop_once(torture->ev);
1003                 torture_assert(torture, ev_ret == 0, "tevent_loop_once failed");
1004 #endif
1005         }
1006         torture_assert_ntstatus_ok(torture, s->error, "Failed establish a connect");
1007
1008         /*
1009          * Change the workstation password after establishing the netlogon
1010          * schannel connections to prove that existing connections are not
1011          * affected by a wks pwchange.
1012          */
1013
1014         {
1015                 struct netr_ServerPasswordSet pwset;
1016                 char *password = generate_random_password(s->join_ctx1, 8, 255);
1017                 struct netlogon_creds_CredentialState *creds_state;
1018                 struct dcerpc_pipe *net_pipe;
1019                 struct netr_Authenticator credential, return_authenticator;
1020                 struct samr_Password new_password;
1021
1022                 status = dcerpc_pipe_connect_b(s, &net_pipe, s->b,
1023                                                &ndr_table_netlogon,
1024                                                s->wks_creds1,
1025                                                torture->ev, torture->lp_ctx);
1026
1027                 torture_assert_ntstatus_ok(torture, status,
1028                                            "dcerpc_pipe_connect_b failed");
1029
1030                 pwset.in.server_name = talloc_asprintf(
1031                         net_pipe, "\\\\%s", dcerpc_server_name(net_pipe));
1032                 pwset.in.computer_name =
1033                         cli_credentials_get_workstation(s->wks_creds1);
1034                 pwset.in.account_name = talloc_asprintf(
1035                         net_pipe, "%s$", pwset.in.computer_name);
1036                 pwset.in.secure_channel_type = SEC_CHAN_WKSTA;
1037                 pwset.in.credential = &credential;
1038                 pwset.in.new_password = &new_password;
1039                 pwset.out.return_authenticator = &return_authenticator;
1040
1041                 E_md4hash(password, new_password.hash);
1042
1043                 creds_state = cli_credentials_get_netlogon_creds(
1044                         s->wks_creds1);
1045                 netlogon_creds_des_encrypt(creds_state, &new_password);
1046                 netlogon_creds_client_authenticator(creds_state, &credential);
1047
1048                 torture_assert_ntstatus_ok(torture, dcerpc_netr_ServerPasswordSet_r(net_pipe->binding_handle, torture, &pwset),
1049                         "ServerPasswordSet failed");
1050                 torture_assert_ntstatus_ok(torture, pwset.out.result,
1051                                            "ServerPasswordSet failed");
1052
1053                 if (!netlogon_creds_client_check(creds_state,
1054                                         &pwset.out.return_authenticator->cred)) {
1055                         torture_comment(torture, "Credential chaining failed\n");
1056                 }
1057
1058                 cli_credentials_set_password(s->wks_creds1, password,
1059                                              CRED_SPECIFIED);
1060
1061                 talloc_free(net_pipe);
1062
1063                 /* Just as a test, connect with the new creds */
1064
1065                 cli_credentials_set_netlogon_creds(s->wks_creds1, NULL);
1066
1067                 status = dcerpc_pipe_connect_b(s, &net_pipe, s->b,
1068                                                &ndr_table_netlogon,
1069                                                s->wks_creds1,
1070                                                torture->ev, torture->lp_ctx);
1071
1072                 torture_assert_ntstatus_ok(torture, status,
1073                                            "dcerpc_pipe_connect_b failed");
1074
1075                 talloc_free(net_pipe);
1076         }
1077
1078         torture_comment(torture, "Start looping LogonSamLogonEx on %d connections for %d secs\n",
1079                         s->nprocs, s->timelimit);
1080         for (i=0; i < s->nprocs; i++) {
1081                 ret = torture_schannel_bench_start(&s->conns[i]);
1082                 torture_assert(torture, ret, "Failed to setup LogonSamLogonEx");
1083         }
1084
1085         start = timeval_current();
1086         end = timeval_add(&start, s->timelimit, 0);
1087
1088         while (NT_STATUS_IS_OK(s->error) && !timeval_expired(&end)) {
1089                 int ev_ret = tevent_loop_once(torture->ev);
1090                 torture_assert(torture, ev_ret == 0, "tevent_loop_once failed");
1091         }
1092         torture_assert_ntstatus_ok(torture, s->error, "Failed some request");
1093         s->stopped = true;
1094         talloc_free(s->conns);
1095
1096         for (i=0; i < s->nprocs; i++) {
1097                 s->total += s->conns[i].total;
1098         }
1099
1100         torture_comment(torture,
1101                         "Total ops[%llu] (%u ops/s)\n",
1102                         (unsigned long long)s->total,
1103                         (unsigned)s->total/s->timelimit);
1104
1105         torture_leave_domain(torture, s->join_ctx1);
1106         torture_leave_domain(torture, s->join_ctx2);
1107         return true;
1108 }