source4/torture/rpc/remote_pac.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    test suite for netlogon PAC operations
   5
   6    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2008
   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 "auth/auth.h"
  24 #include "auth/auth_sam_reply.h"
  25 #include "auth/gensec/gensec.h"
  26 #include "system/kerberos.h"
  27 #include "auth/kerberos/kerberos.h"
  28 #include "auth/credentials/credentials.h"
  29 #include "auth/credentials/credentials_krb5.h"
  30 #include "lib/cmdline/popt_common.h"
  31 #include "torture/rpc/torture_rpc.h"
  32 #include "libcli/auth/libcli_auth.h"
  33 #include "libcli/security/security.h"
  34 #include "librpc/gen_ndr/ndr_netlogon_c.h"
  35 #include "librpc/gen_ndr/ndr_krb5pac.h"
  36 #include "librpc/gen_ndr/ndr_samr_c.h"
  37 #include "param/param.h"
  38
  39 #define TEST_MACHINE_NAME_BDC "torturepacbdc"
  40 #define TEST_MACHINE_NAME_WKSTA "torturepacwksta"
  41 #define TEST_MACHINE_NAME_WKSTA_DES "torturepacwkdes"
  42 #define TEST_MACHINE_NAME_S2U4SELF_BDC "tests2u4selfbdc"
  43 #define TEST_MACHINE_NAME_S2U4SELF_WKSTA "tests2u4selfwk"
  44
  45 struct pac_data {
  46         struct PAC_SIGNATURE_DATA *pac_srv_sig;
  47         struct PAC_SIGNATURE_DATA *pac_kdc_sig;
  48 };
  49
  50 /* A helper function which avoids touching the local databases to
  51  * generate the session info, as we just want to verify the PAC
  52  * details, not the full local token */
  53 static NTSTATUS test_generate_session_info_pac(struct auth4_context *auth_ctx,
  54                                                TALLOC_CTX *mem_ctx,
  55                                                struct smb_krb5_context *smb_krb5_context,
  56                                                DATA_BLOB *pac_blob,
  57                                                const char *principal_name,
  58                                                const struct tsocket_address *remote_address,
  59                                                uint32_t session_info_flags,
  60                                                struct auth_session_info **session_info)
  61 {
  62         NTSTATUS nt_status;
  63         struct auth_user_info_dc *user_info_dc;
  64         TALLOC_CTX *tmp_ctx;
  65         struct pac_data *pac_data;
  66
  67         tmp_ctx = talloc_named(mem_ctx, 0, "gensec_gssapi_session_info context");
  68         NT_STATUS_HAVE_NO_MEMORY(tmp_ctx);
  69
  70         auth_ctx->private_data = pac_data = talloc_zero(auth_ctx, struct pac_data);
  71
  72         pac_data->pac_srv_sig = talloc(tmp_ctx, struct PAC_SIGNATURE_DATA);
  73         if (!pac_data->pac_srv_sig) {
  74                 talloc_free(tmp_ctx);
  75                 return NT_STATUS_NO_MEMORY;
  76         }
  77         pac_data->pac_kdc_sig = talloc(tmp_ctx, struct PAC_SIGNATURE_DATA);
  78         if (!pac_data->pac_kdc_sig) {
  79                 talloc_free(tmp_ctx);
  80                 return NT_STATUS_NO_MEMORY;
  81         }
  82
  83         nt_status = kerberos_pac_blob_to_user_info_dc(tmp_ctx,
  84                                                       *pac_blob,
  85                                                       smb_krb5_context->krb5_context,
  86                                                       &user_info_dc,
  87                                                       pac_data->pac_srv_sig,
  88                                                       pac_data->pac_kdc_sig);
  89         if (!NT_STATUS_IS_OK(nt_status)) {
  90                 talloc_free(tmp_ctx);
  91                 return nt_status;
  92         }
  93
  94         talloc_steal(pac_data, pac_data->pac_srv_sig);
  95         talloc_steal(pac_data, pac_data->pac_kdc_sig);
  96
  97         if (user_info_dc->info->authenticated) {
  98                 session_info_flags |= AUTH_SESSION_INFO_AUTHENTICATED;
  99         }
 100
 101         session_info_flags |= AUTH_SESSION_INFO_SIMPLE_PRIVILEGES;
 102         nt_status = auth_generate_session_info(mem_ctx,
 103                                                NULL,
 104                                                NULL,
 105                                                user_info_dc, session_info_flags,
 106                                                session_info);
 107         if (!NT_STATUS_IS_OK(nt_status)) {
 108                 talloc_free(tmp_ctx);
 109                 return nt_status;
 110         }
 111
 112         talloc_free(tmp_ctx);
 113         return nt_status;
 114 }
 115
 116 /* Check to see if we can pass the PAC across to the NETLOGON server for validation */
 117
 118 /* Also happens to be a really good one-step verfication of our Kerberos stack */
 119
 120 static bool test_PACVerify(struct torture_context *tctx,
 121                            struct dcerpc_pipe *p,
 122                            struct cli_credentials *credentials,
 123                            enum netr_SchannelType secure_channel_type,
 124                            const char *test_machine_name)
 125 {
 126         NTSTATUS status;
 127
 128         struct netr_LogonSamLogon r;
 129
 130         union netr_LogonLevel logon;
 131         union netr_Validation validation;
 132         uint8_t authoritative;
 133         struct netr_Authenticator return_authenticator;
 134
 135         struct netr_GenericInfo generic;
 136         struct netr_Authenticator auth, auth2;
 137
 138         struct netlogon_creds_CredentialState *creds;
 139         struct gensec_security *gensec_client_context;
 140         struct gensec_security *gensec_server_context;
 141
 142         DATA_BLOB client_to_server, server_to_client, pac_wrapped, payload;
 143         struct PAC_Validate pac_wrapped_struct;
 144
 145         enum ndr_err_code ndr_err;
 146
 147         struct auth4_context *auth_context;
 148         struct auth_session_info *session_info;
 149         struct pac_data *pac_data;
 150
 151         struct dcerpc_binding_handle *b = p->binding_handle;
 152         TALLOC_CTX *tmp_ctx = talloc_new(tctx);
 153         torture_assert(tctx, tmp_ctx != NULL, "talloc_new() failed");
 154
 155         if (!test_SetupCredentials2(p, tctx, NETLOGON_NEG_AUTH2_ADS_FLAGS,
 156                                     credentials, secure_channel_type,
 157                                     &creds)) {
 158                 return false;
 159         }
 160
 161         auth_context = talloc_zero(tmp_ctx, struct auth4_context);
 162         torture_assert(tctx, auth_context != NULL, "talloc_new() failed");
 163
 164         auth_context->generate_session_info_pac = test_generate_session_info_pac;
 165
 166         status = gensec_client_start(tctx, &gensec_client_context,
 167                                      lpcfg_gensec_settings(tctx, tctx->lp_ctx));
 168         torture_assert_ntstatus_ok(tctx, status, "gensec_client_start (client) failed");
 169
 170         status = gensec_set_target_hostname(gensec_client_context, test_machine_name);
 171
 172         status = gensec_set_credentials(gensec_client_context, cmdline_credentials);
 173         torture_assert_ntstatus_ok(tctx, status, "gensec_set_credentials (client) failed");
 174
 175         status = gensec_start_mech_by_sasl_name(gensec_client_context, "GSSAPI");
 176         torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_sasl_name (client) failed");
 177
 178         status = gensec_server_start(tctx,
 179                                      lpcfg_gensec_settings(tctx, tctx->lp_ctx),
 180                                      auth_context, &gensec_server_context);
 181         torture_assert_ntstatus_ok(tctx, status, "gensec_server_start (server) failed");
 182
 183         status = gensec_set_credentials(gensec_server_context, credentials);
 184         torture_assert_ntstatus_ok(tctx, status, "gensec_set_credentials (server) failed");
 185
 186         status = gensec_start_mech_by_sasl_name(gensec_server_context, "GSSAPI");
 187         torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_sasl_name (server) failed");
 188
 189         server_to_client = data_blob(NULL, 0);
 190
 191         do {
 192                 /* Do a client-server update dance */
 193                 status = gensec_update(gensec_client_context, tmp_ctx, tctx->ev, server_to_client, &client_to_server);
 194                 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {;
 195                         torture_assert_ntstatus_ok(tctx, status, "gensec_update (client) failed");
 196                 }
 197
 198                 status = gensec_update(gensec_server_context, tmp_ctx, tctx->ev, client_to_server, &server_to_client);
 199                 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {;
 200                         torture_assert_ntstatus_ok(tctx, status, "gensec_update (server) failed");
 201                 }
 202
 203                 if (NT_STATUS_IS_OK(status)) {
 204                         break;
 205                 }
 206         } while (1);
 207
 208         /* Extract the PAC using Samba's code */
 209
 210         status = gensec_session_info(gensec_server_context, gensec_server_context, &session_info);
 211         torture_assert_ntstatus_ok(tctx, status, "gensec_session_info failed");
 212
 213         pac_data = talloc_get_type(auth_context->private_data, struct pac_data);
 214
 215         torture_assert(tctx, pac_data != NULL, "gensec_update failed to fill in pac_data in auth_context");
 216         torture_assert(tctx, pac_data->pac_srv_sig != NULL, "pac_srv_sig not present");
 217         torture_assert(tctx, pac_data->pac_kdc_sig != NULL, "pac_kdc_sig not present");
 218
 219         pac_wrapped_struct.ChecksumLength = pac_data->pac_srv_sig->signature.length;
 220         pac_wrapped_struct.SignatureType = pac_data->pac_kdc_sig->type;
 221         pac_wrapped_struct.SignatureLength = pac_data->pac_kdc_sig->signature.length;
 222         pac_wrapped_struct.ChecksumAndSignature = payload
 223                 = data_blob_talloc(tmp_ctx, NULL,
 224                                    pac_wrapped_struct.ChecksumLength
 225                                    + pac_wrapped_struct.SignatureLength);
 226         memcpy(&payload.data[0],
 227                pac_data->pac_srv_sig->signature.data,
 228                pac_wrapped_struct.ChecksumLength);
 229         memcpy(&payload.data[pac_wrapped_struct.ChecksumLength],
 230                pac_data->pac_kdc_sig->signature.data,
 231                pac_wrapped_struct.SignatureLength);
 232
 233         ndr_err = ndr_push_struct_blob(&pac_wrapped, tmp_ctx, &pac_wrapped_struct,
 234                                        (ndr_push_flags_fn_t)ndr_push_PAC_Validate);
 235         torture_assert(tctx, NDR_ERR_CODE_IS_SUCCESS(ndr_err), "ndr_push_struct_blob of PACValidate structure failed");
 236
 237         torture_assert(tctx, (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR), "not willing to even try a PACValidate without RC4 encryption");
 238         netlogon_creds_arcfour_crypt(creds, pac_wrapped.data, pac_wrapped.length);
 239
 240         generic.length = pac_wrapped.length;
 241         generic.data = pac_wrapped.data;
 242
 243         /* Validate it over the netlogon pipe */
 244
 245         generic.identity_info.parameter_control = 0;
 246         generic.identity_info.logon_id_high = 0;
 247         generic.identity_info.logon_id_low = 0;
 248         generic.identity_info.domain_name.string = session_info->info->domain_name;
 249         generic.identity_info.account_name.string = session_info->info->account_name;
 250         generic.identity_info.workstation.string = test_machine_name;
 251
 252         generic.package_name.string = "Kerberos";
 253
 254         logon.generic = &generic;
 255
 256         ZERO_STRUCT(auth2);
 257         netlogon_creds_client_authenticator(creds, &auth);
 258         r.in.credential = &auth;
 259         r.in.return_authenticator = &auth2;
 260         r.in.logon = &logon;
 261         r.in.logon_level = NetlogonGenericInformation;
 262         r.in.server_name = talloc_asprintf(tctx, "\\\\%s", dcerpc_server_name(p));
 263         r.in.computer_name = cli_credentials_get_workstation(credentials);
 264         r.in.validation_level = NetlogonValidationGenericInfo2;
 265         r.out.validation = &validation;
 266         r.out.authoritative = &authoritative;
 267         r.out.return_authenticator = &return_authenticator;
 268
 269         torture_assert_ntstatus_ok(tctx, dcerpc_netr_LogonSamLogon_r(b, tctx, &r),
 270                 "LogonSamLogon failed");
 271
 272         torture_assert_ntstatus_ok(tctx, r.out.result, "LogonSamLogon failed");
 273
 274         /* This will break the signature nicely (even in the crypto wrapping), check we get a logon failure */
 275         generic.data[generic.length-1]++;
 276
 277         logon.generic = &generic;
 278
 279         ZERO_STRUCT(auth2);
 280         netlogon_creds_client_authenticator(creds, &auth);
 281         r.in.credential = &auth;
 282         r.in.return_authenticator = &auth2;
 283         r.in.logon_level = NetlogonGenericInformation;
 284         r.in.logon = &logon;
 285         r.in.server_name = talloc_asprintf(tctx, "\\\\%s", dcerpc_server_name(p));
 286         r.in.computer_name = cli_credentials_get_workstation(credentials);
 287         r.in.validation_level = NetlogonValidationGenericInfo2;
 288
 289         torture_assert_ntstatus_ok(tctx, dcerpc_netr_LogonSamLogon_r(b, tctx, &r),
 290                 "LogonSamLogon failed");
 291
 292         torture_assert_ntstatus_equal(tctx, r.out.result, NT_STATUS_LOGON_FAILURE, "LogonSamLogon failed");
 293
 294         torture_assert(tctx, netlogon_creds_client_check(creds, &r.out.return_authenticator->cred),
 295                        "Credential chaining failed");
 296
 297         /* This will break the parsing nicely (even in the crypto wrapping), check we get INVALID_PARAMETER */
 298         generic.length--;
 299
 300         logon.generic = &generic;
 301
 302         ZERO_STRUCT(auth2);
 303         netlogon_creds_client_authenticator(creds, &auth);
 304         r.in.credential = &auth;
 305         r.in.return_authenticator = &auth2;
 306         r.in.logon_level = NetlogonGenericInformation;
 307         r.in.logon = &logon;
 308         r.in.server_name = talloc_asprintf(tctx, "\\\\%s", dcerpc_server_name(p));
 309         r.in.computer_name = cli_credentials_get_workstation(credentials);
 310         r.in.validation_level = NetlogonValidationGenericInfo2;
 311
 312         torture_assert_ntstatus_ok(tctx, dcerpc_netr_LogonSamLogon_r(b, tctx, &r),
 313                 "LogonSamLogon failed");
 314
 315         torture_assert_ntstatus_equal(tctx, r.out.result, NT_STATUS_INVALID_PARAMETER, "LogonSamLogon failed");
 316
 317         torture_assert(tctx, netlogon_creds_client_check(creds,
 318                                                          &r.out.return_authenticator->cred),
 319                        "Credential chaining failed");
 320
 321         pac_wrapped_struct.ChecksumLength = pac_data->pac_srv_sig->signature.length;
 322         pac_wrapped_struct.SignatureType = pac_data->pac_kdc_sig->type;
 323
 324         /* Break the SignatureType */
 325         pac_wrapped_struct.SignatureType++;
 326
 327         pac_wrapped_struct.SignatureLength = pac_data->pac_kdc_sig->signature.length;
 328         pac_wrapped_struct.ChecksumAndSignature = payload
 329                 = data_blob_talloc(tmp_ctx, NULL,
 330                                    pac_wrapped_struct.ChecksumLength
 331                                    + pac_wrapped_struct.SignatureLength);
 332         memcpy(&payload.data[0],
 333                pac_data->pac_srv_sig->signature.data,
 334                pac_wrapped_struct.ChecksumLength);
 335         memcpy(&payload.data[pac_wrapped_struct.ChecksumLength],
 336                pac_data->pac_kdc_sig->signature.data,
 337                pac_wrapped_struct.SignatureLength);
 338
 339         ndr_err = ndr_push_struct_blob(&pac_wrapped, tmp_ctx, &pac_wrapped_struct,
 340                                        (ndr_push_flags_fn_t)ndr_push_PAC_Validate);
 341         torture_assert(tctx, NDR_ERR_CODE_IS_SUCCESS(ndr_err), "ndr_push_struct_blob of PACValidate structure failed");
 342
 343         torture_assert(tctx, (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR), "not willing to even try a PACValidate without RC4 encryption");
 344         netlogon_creds_arcfour_crypt(creds, pac_wrapped.data, pac_wrapped.length);
 345
 346         generic.length = pac_wrapped.length;
 347         generic.data = pac_wrapped.data;
 348
 349         logon.generic = &generic;
 350
 351         ZERO_STRUCT(auth2);
 352         netlogon_creds_client_authenticator(creds, &auth);
 353         r.in.credential = &auth;
 354         r.in.return_authenticator = &auth2;
 355         r.in.logon_level = NetlogonGenericInformation;
 356         r.in.logon = &logon;
 357         r.in.server_name = talloc_asprintf(tctx, "\\\\%s", dcerpc_server_name(p));
 358         r.in.computer_name = cli_credentials_get_workstation(credentials);
 359         r.in.validation_level = NetlogonValidationGenericInfo2;
 360
 361         torture_assert_ntstatus_ok(tctx, dcerpc_netr_LogonSamLogon_r(b, tctx, &r),
 362                 "LogonSamLogon failed");
 363
 364         torture_assert_ntstatus_equal(tctx, r.out.result, NT_STATUS_LOGON_FAILURE, "LogonSamLogon failed");
 365
 366         torture_assert(tctx, netlogon_creds_client_check(creds, &r.out.return_authenticator->cred),
 367                        "Credential chaining failed");
 368
 369         pac_wrapped_struct.ChecksumLength = pac_data->pac_srv_sig->signature.length;
 370         pac_wrapped_struct.SignatureType = pac_data->pac_kdc_sig->type;
 371         pac_wrapped_struct.SignatureLength = pac_data->pac_kdc_sig->signature.length;
 372
 373         pac_wrapped_struct.ChecksumAndSignature = payload
 374                 = data_blob_talloc(tmp_ctx, NULL,
 375                                    pac_wrapped_struct.ChecksumLength
 376                                    + pac_wrapped_struct.SignatureLength);
 377         memcpy(&payload.data[0],
 378                pac_data->pac_srv_sig->signature.data,
 379                pac_wrapped_struct.ChecksumLength);
 380         memcpy(&payload.data[pac_wrapped_struct.ChecksumLength],
 381                pac_data->pac_kdc_sig->signature.data,
 382                pac_wrapped_struct.SignatureLength);
 383
 384         /* Break the signature length */
 385         pac_wrapped_struct.SignatureLength++;
 386
 387         ndr_err = ndr_push_struct_blob(&pac_wrapped, tmp_ctx, &pac_wrapped_struct,
 388                                        (ndr_push_flags_fn_t)ndr_push_PAC_Validate);
 389         torture_assert(tctx, NDR_ERR_CODE_IS_SUCCESS(ndr_err), "ndr_push_struct_blob of PACValidate structure failed");
 390
 391         torture_assert(tctx, (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR), "not willing to even try a PACValidate without RC4 encryption");
 392         netlogon_creds_arcfour_crypt(creds, pac_wrapped.data, pac_wrapped.length);
 393
 394         generic.length = pac_wrapped.length;
 395         generic.data = pac_wrapped.data;
 396
 397         logon.generic = &generic;
 398
 399         ZERO_STRUCT(auth2);
 400         netlogon_creds_client_authenticator(creds, &auth);
 401         r.in.credential = &auth;
 402         r.in.return_authenticator = &auth2;
 403         r.in.logon_level = NetlogonGenericInformation;
 404         r.in.logon = &logon;
 405         r.in.server_name = talloc_asprintf(tctx, "\\\\%s", dcerpc_server_name(p));
 406         r.in.computer_name = cli_credentials_get_workstation(credentials);
 407         r.in.validation_level = NetlogonValidationGenericInfo2;
 408
 409         torture_assert_ntstatus_ok(tctx, dcerpc_netr_LogonSamLogon_r(b, tctx, &r),
 410                 "LogonSamLogon failed");
 411
 412         torture_assert_ntstatus_equal(tctx, r.out.result, NT_STATUS_INVALID_PARAMETER, "LogonSamLogon failed");
 413
 414         torture_assert(tctx, netlogon_creds_client_check(creds, &r.out.return_authenticator->cred),
 415                        "Credential chaining failed");
 416
 417         return true;
 418 }
 419
 420 static bool test_PACVerify_bdc(struct torture_context *tctx,
 421                                struct dcerpc_pipe *p,
 422                                struct cli_credentials *credentials)
 423 {
 424         return test_PACVerify(tctx, p, credentials, SEC_CHAN_BDC, TEST_MACHINE_NAME_BDC);
 425 }
 426
 427 static bool test_PACVerify_workstation(struct torture_context *tctx,
 428                                   struct dcerpc_pipe *p,
 429                                   struct cli_credentials *credentials)
 430 {
 431         return test_PACVerify(tctx, p, credentials, SEC_CHAN_WKSTA, TEST_MACHINE_NAME_WKSTA);
 432 }
 433
 434 static bool test_PACVerify_workstation_des(struct torture_context *tctx,
 435                                            struct dcerpc_pipe *p, struct cli_credentials *credentials, struct test_join *join_ctx)
 436 {
 437         struct samr_SetUserInfo r;
 438         union samr_UserInfo user_info;
 439         struct dcerpc_pipe *samr_pipe = torture_join_samr_pipe(join_ctx);
 440         struct smb_krb5_context *smb_krb5_context;
 441         krb5_error_code ret;
 442
 443         ret = cli_credentials_get_krb5_context(cmdline_credentials, tctx->lp_ctx, &smb_krb5_context);
 444         torture_assert_int_equal(tctx, ret, 0, "cli_credentials_get_krb5_context() failed");
 445
 446         if (krb5_config_get_bool_default(smb_krb5_context->krb5_context, NULL, FALSE,
 447                                          "libdefaults",
 448                                          "allow_weak_crypto", NULL) == FALSE) {
 449                 torture_skip(tctx, "Cannot test DES without [libdefaults] allow_weak_crypto = yes");
 450         }
 451
 452         /* Mark this workstation with DES-only */
 453         user_info.info16.acct_flags = ACB_USE_DES_KEY_ONLY | ACB_WSTRUST;
 454         r.in.user_handle = torture_join_samr_user_policy(join_ctx);
 455         r.in.level = 16;
 456         r.in.info = &user_info;
 457
 458         torture_assert_ntstatus_ok(tctx, dcerpc_samr_SetUserInfo_r(samr_pipe->binding_handle, tctx, &r),
 459                 "failed to set DES info account flags");
 460         torture_assert_ntstatus_ok(tctx, r.out.result,
 461                 "failed to set DES into account flags");
 462
 463         return test_PACVerify(tctx, p, credentials, SEC_CHAN_WKSTA, TEST_MACHINE_NAME_WKSTA_DES);
 464 }
 465
 466
 467 /* Check various ways to get the PAC, in particular check the group membership and other details between the PAC from a normal kinit, S2U4Self and a SamLogon */
 468 static bool test_S2U4Self(struct torture_context *tctx,
 469                           struct dcerpc_pipe *p,
 470                           struct cli_credentials *credentials,
 471                           enum netr_SchannelType secure_channel_type,
 472                           const char *test_machine_name)
 473 {
 474         NTSTATUS status;
 475         struct dcerpc_binding_handle *b = p->binding_handle;
 476
 477         struct netr_LogonSamLogon r;
 478
 479         union netr_LogonLevel logon;
 480         union netr_Validation validation;
 481         uint8_t authoritative;
 482
 483         struct netr_Authenticator auth, auth2;
 484
 485         DATA_BLOB client_to_server, server_to_client;
 486
 487         struct netlogon_creds_CredentialState *creds;
 488         struct gensec_security *gensec_client_context;
 489         struct gensec_security *gensec_server_context;
 490
 491         struct auth4_context *auth_context;
 492         struct auth_session_info *kinit_session_info;
 493         struct auth_session_info *s2u4self_session_info;
 494         struct auth_user_info_dc *netlogon_user_info_dc;
 495
 496         struct netr_NetworkInfo ninfo;
 497         DATA_BLOB names_blob, chal, lm_resp, nt_resp;
 498         size_t i;
 499         int flags = CLI_CRED_NTLMv2_AUTH;
 500
 501         struct dom_sid *builtin_domain;
 502
 503         TALLOC_CTX *tmp_ctx = talloc_new(tctx);
 504
 505         torture_assert(tctx, tmp_ctx != NULL, "talloc_new() failed");
 506
 507         auth_context = talloc_zero(tmp_ctx, struct auth4_context);
 508         torture_assert(tctx, auth_context != NULL, "talloc_new() failed");
 509
 510         auth_context->generate_session_info_pac = test_generate_session_info_pac;
 511
 512         /* First, do a normal Kerberos connection */
 513
 514         status = gensec_client_start(tctx, &gensec_client_context,
 515                                      lpcfg_gensec_settings(tctx, tctx->lp_ctx));
 516         torture_assert_ntstatus_ok(tctx, status, "gensec_client_start (client) failed");
 517
 518         status = gensec_set_target_hostname(gensec_client_context, test_machine_name);
 519
 520         status = gensec_set_credentials(gensec_client_context, cmdline_credentials);
 521         torture_assert_ntstatus_ok(tctx, status, "gensec_set_credentials (client) failed");
 522
 523         status = gensec_start_mech_by_sasl_name(gensec_client_context, "GSSAPI");
 524         torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_sasl_name (client) failed");
 525
 526         status = gensec_server_start(tctx,
 527                                      lpcfg_gensec_settings(tctx, tctx->lp_ctx),
 528                                      auth_context, &gensec_server_context);
 529         torture_assert_ntstatus_ok(tctx, status, "gensec_server_start (server) failed");
 530
 531         status = gensec_set_credentials(gensec_server_context, credentials);
 532         torture_assert_ntstatus_ok(tctx, status, "gensec_set_credentials (server) failed");
 533
 534         status = gensec_start_mech_by_sasl_name(gensec_server_context, "GSSAPI");
 535         torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_sasl_name (server) failed");
 536
 537         server_to_client = data_blob(NULL, 0);
 538
 539         do {
 540                 /* Do a client-server update dance */
 541                 status = gensec_update(gensec_client_context, tmp_ctx, tctx->ev, server_to_client, &client_to_server);
 542                 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {;
 543                         torture_assert_ntstatus_ok(tctx, status, "gensec_update (client) failed");
 544                 }
 545
 546                 status = gensec_update(gensec_server_context, tmp_ctx, tctx->ev, client_to_server, &server_to_client);
 547                 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {;
 548                         torture_assert_ntstatus_ok(tctx, status, "gensec_update (server) failed");
 549                 }
 550
 551                 if (NT_STATUS_IS_OK(status)) {
 552                         break;
 553                 }
 554         } while (1);
 555
 556         /* Extract the PAC using Samba's code */
 557
 558         status = gensec_session_info(gensec_server_context, gensec_server_context, &kinit_session_info);
 559         torture_assert_ntstatus_ok(tctx, status, "gensec_session_info failed");
 560
 561
 562         /* Now do the dance with S2U4Self */
 563
 564         /* Wipe out any existing ccache */
 565         cli_credentials_invalidate_ccache(credentials, CRED_SPECIFIED);
 566         cli_credentials_set_impersonate_principal(credentials,
 567                         cli_credentials_get_principal(cmdline_credentials, tmp_ctx),
 568                         talloc_asprintf(tmp_ctx, "host/%s", test_machine_name));
 569
 570         status = gensec_client_start(tctx, &gensec_client_context,
 571                                      lpcfg_gensec_settings(tctx, tctx->lp_ctx));
 572         torture_assert_ntstatus_ok(tctx, status, "gensec_client_start (client) failed");
 573
 574         status = gensec_set_target_hostname(gensec_client_context, test_machine_name);
 575
 576         /* We now set the same credentials on both client and server contexts */
 577         status = gensec_set_credentials(gensec_client_context, credentials);
 578         torture_assert_ntstatus_ok(tctx, status, "gensec_set_credentials (client) failed");
 579
 580         status = gensec_start_mech_by_sasl_name(gensec_client_context, "GSSAPI");
 581         torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_sasl_name (client) failed");
 582
 583         status = gensec_server_start(tctx,
 584                                      lpcfg_gensec_settings(tctx, tctx->lp_ctx),
 585                                      auth_context, &gensec_server_context);
 586         torture_assert_ntstatus_ok(tctx, status, "gensec_server_start (server) failed");
 587
 588         status = gensec_set_credentials(gensec_server_context, credentials);
 589         torture_assert_ntstatus_ok(tctx, status, "gensec_set_credentials (server) failed");
 590
 591         status = gensec_start_mech_by_sasl_name(gensec_server_context, "GSSAPI");
 592         torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_sasl_name (server) failed");
 593
 594         server_to_client = data_blob(NULL, 0);
 595
 596         do {
 597                 /* Do a client-server update dance */
 598                 status = gensec_update(gensec_client_context, tmp_ctx, tctx->ev, server_to_client, &client_to_server);
 599                 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {;
 600                         torture_assert_ntstatus_ok(tctx, status, "gensec_update (client) failed");
 601                 }
 602
 603                 status = gensec_update(gensec_server_context, tmp_ctx, tctx->ev, client_to_server, &server_to_client);
 604                 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {;
 605                         torture_assert_ntstatus_ok(tctx, status, "gensec_update (server) failed");
 606                 }
 607
 608                 if (NT_STATUS_IS_OK(status)) {
 609                         break;
 610                 }
 611         } while (1);
 612
 613         /* Don't pollute the remaining tests with the changed credentials */
 614         cli_credentials_invalidate_ccache(credentials, CRED_SPECIFIED);
 615         cli_credentials_set_target_service(credentials, NULL);
 616         cli_credentials_set_impersonate_principal(credentials, NULL, NULL);
 617
 618         /* Extract the PAC using Samba's code */
 619
 620         status = gensec_session_info(gensec_server_context, gensec_server_context, &s2u4self_session_info);
 621         torture_assert_ntstatus_ok(tctx, status, "gensec_session_info failed");
 622
 623         cli_credentials_get_ntlm_username_domain(cmdline_credentials, tctx,
 624                                                  &ninfo.identity_info.account_name.string,
 625                                                  &ninfo.identity_info.domain_name.string);
 626
 627         /* Now try with SamLogon */
 628         generate_random_buffer(ninfo.challenge,
 629                                sizeof(ninfo.challenge));
 630         chal = data_blob_const(ninfo.challenge,
 631                                sizeof(ninfo.challenge));
 632
 633         names_blob = NTLMv2_generate_names_blob(tctx, cli_credentials_get_workstation(credentials),
 634                                                 cli_credentials_get_domain(credentials));
 635
 636         status = cli_credentials_get_ntlm_response(cmdline_credentials, tctx,
 637                                                    &flags,
 638                                                    chal,
 639                                                    names_blob,
 640                                                    &lm_resp, &nt_resp,
 641                                                    NULL, NULL);
 642         torture_assert_ntstatus_ok(tctx, status, "cli_credentials_get_ntlm_response failed");
 643
 644         ninfo.lm.data = lm_resp.data;
 645         ninfo.lm.length = lm_resp.length;
 646
 647         ninfo.nt.data = nt_resp.data;
 648         ninfo.nt.length = nt_resp.length;
 649
 650         ninfo.identity_info.parameter_control = 0;
 651         ninfo.identity_info.logon_id_low = 0;
 652         ninfo.identity_info.logon_id_high = 0;
 653         ninfo.identity_info.workstation.string = cli_credentials_get_workstation(credentials);
 654
 655         logon.network = &ninfo;
 656
 657         r.in.server_name = talloc_asprintf(tctx, "\\\\%s", dcerpc_server_name(p));
 658         r.in.computer_name = cli_credentials_get_workstation(credentials);
 659         r.in.credential = &auth;
 660         r.in.return_authenticator = &auth2;
 661         r.in.logon_level = 2;
 662         r.in.logon = &logon;
 663         r.out.validation = &validation;
 664         r.out.authoritative = &authoritative;
 665
 666         if (!test_SetupCredentials2(p, tctx, NETLOGON_NEG_AUTH2_ADS_FLAGS,
 667                                     credentials, secure_channel_type,
 668                                     &creds)) {
 669                 return false;
 670         }
 671
 672         ZERO_STRUCT(auth2);
 673         netlogon_creds_client_authenticator(creds, &auth);
 674
 675         r.in.validation_level = 3;
 676
 677         status = dcerpc_netr_LogonSamLogon_r(b, tctx, &r);
 678         torture_assert_ntstatus_ok(tctx, status, "LogonSamLogon failed");
 679
 680         torture_assert(tctx, netlogon_creds_client_check(creds,
 681                                                          &r.out.return_authenticator->cred),
 682                        "Credential chaining failed");
 683
 684         status = make_user_info_dc_netlogon_validation(tmp_ctx,
 685                                                       ninfo.identity_info.account_name.string,
 686                                                       r.in.validation_level,
 687                                                       r.out.validation,
 688                                                           true, /* This user was authenticated */
 689                                                       &netlogon_user_info_dc);
 690
 691         torture_assert_ntstatus_ok(tctx, status, "make_user_info_dc_netlogon_validation failed");
 692
 693         torture_assert_str_equal(tctx, netlogon_user_info_dc->info->account_name == NULL ? "" : netlogon_user_info_dc->info->account_name,
 694                                  kinit_session_info->info->account_name, "Account name differs for kinit-based PAC");
 695         torture_assert_str_equal(tctx,netlogon_user_info_dc->info->account_name == NULL ? "" : netlogon_user_info_dc->info->account_name,
 696                                  s2u4self_session_info->info->account_name, "Account name differs for S2U4Self");
 697         torture_assert_str_equal(tctx, netlogon_user_info_dc->info->full_name == NULL ? "" : netlogon_user_info_dc->info->full_name, kinit_session_info->info->full_name, "Full name differs for kinit-based PAC");
 698         torture_assert_str_equal(tctx, netlogon_user_info_dc->info->full_name == NULL ? "" : netlogon_user_info_dc->info->full_name, s2u4self_session_info->info->full_name, "Full name differs for S2U4Self");
 699         torture_assert_int_equal(tctx, netlogon_user_info_dc->num_sids, kinit_session_info->torture->num_dc_sids, "Different numbers of domain groups for kinit-based PAC");
 700         torture_assert_int_equal(tctx, netlogon_user_info_dc->num_sids, s2u4self_session_info->torture->num_dc_sids, "Different numbers of domain groups for S2U4Self");
 701
 702         builtin_domain = dom_sid_parse_talloc(tmp_ctx, SID_BUILTIN);
 703
 704         for (i = 0; i < kinit_session_info->torture->num_dc_sids; i++) {
 705                 torture_assert(tctx, dom_sid_equal(&netlogon_user_info_dc->sids[i], &kinit_session_info->torture->dc_sids[i]), "Different domain groups for kinit-based PAC");
 706                 torture_assert(tctx, dom_sid_equal(&netlogon_user_info_dc->sids[i], &s2u4self_session_info->torture->dc_sids[i]), "Different domain groups for S2U4Self");
 707                 torture_assert(tctx, !dom_sid_in_domain(builtin_domain, &s2u4self_session_info->torture->dc_sids[i]), "Returned BUILTIN domain in groups for S2U4Self");
 708                 torture_assert(tctx, !dom_sid_in_domain(builtin_domain, &kinit_session_info->torture->dc_sids[i]), "Returned BUILTIN domain in groups kinit-based PAC");
 709                 torture_assert(tctx, !dom_sid_in_domain(builtin_domain, &netlogon_user_info_dc->sids[i]), "Returned BUILTIN domian in groups from NETLOGON SamLogon reply");
 710         }
 711
 712         return true;
 713 }
 714
 715 static bool test_S2U4Self_bdc(struct torture_context *tctx,
 716                                struct dcerpc_pipe *p,
 717                                struct cli_credentials *credentials)
 718 {
 719         return test_S2U4Self(tctx, p, credentials, SEC_CHAN_BDC, TEST_MACHINE_NAME_S2U4SELF_BDC);
 720 }
 721
 722 static bool test_S2U4Self_workstation(struct torture_context *tctx,
 723                                   struct dcerpc_pipe *p,
 724                                   struct cli_credentials *credentials)
 725 {
 726         return test_S2U4Self(tctx, p, credentials, SEC_CHAN_WKSTA, TEST_MACHINE_NAME_S2U4SELF_WKSTA);
 727 }
 728
 729 struct torture_suite *torture_rpc_remote_pac(TALLOC_CTX *mem_ctx)
 730 {
 731         struct torture_suite *suite = torture_suite_create(mem_ctx, "pac");
 732         struct torture_rpc_tcase *tcase;
 733
 734         /* It is important to use different names, so that old entries in our credential cache are not used */
 735         tcase = torture_suite_add_machine_bdc_rpc_iface_tcase(suite, "netlogon-bdc",
 736                                                               &ndr_table_netlogon, TEST_MACHINE_NAME_BDC);
 737         torture_rpc_tcase_add_test_creds(tcase, "verify-sig", test_PACVerify_bdc);
 738
 739         tcase = torture_suite_add_machine_workstation_rpc_iface_tcase(suite, "netlogon-member",
 740                                                                       &ndr_table_netlogon, TEST_MACHINE_NAME_WKSTA);
 741         torture_rpc_tcase_add_test_creds(tcase, "verify-sig", test_PACVerify_workstation);
 742
 743         tcase = torture_suite_add_machine_workstation_rpc_iface_tcase(suite, "netlogon-member-des",
 744                                                                       &ndr_table_netlogon, TEST_MACHINE_NAME_WKSTA_DES);
 745         torture_rpc_tcase_add_test_join(tcase, "verify-sig", test_PACVerify_workstation_des);
 746
 747         tcase = torture_suite_add_machine_bdc_rpc_iface_tcase(suite, "netlogon-bdc",
 748                                                               &ndr_table_netlogon, TEST_MACHINE_NAME_S2U4SELF_BDC);
 749         torture_rpc_tcase_add_test_creds(tcase, "s2u4self", test_S2U4Self_bdc);
 750
 751         tcase = torture_suite_add_machine_workstation_rpc_iface_tcase(suite, "netlogon-member",
 752                                                                       &ndr_table_netlogon, TEST_MACHINE_NAME_S2U4SELF_WKSTA);
 753
 754         torture_rpc_tcase_add_test_creds(tcase, "s2u4self", test_S2U4Self_workstation);
 755         return suite;
 756 }