source4/torture/winbind/winbind.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    SMB torture tester
   4    Copyright (C) Stefan Metzmacher 2007
   5    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2012
   6    Copyright (C) Christof Schmit <christof.schmitt@us.ibm.com> 2012
   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 "torture/smbtorture.h"
  24 #include "torture/winbind/proto.h"
  25 #include "auth/auth.h"
  26 #include "auth/auth_sam_reply.h"
  27 #include "auth/gensec/gensec.h"
  28 #include "system/kerberos.h"
  29 #include "auth/kerberos/kerberos.h"
  30 #include "auth/credentials/credentials.h"
  31 #include "param/param.h"
  32 #include "lib/cmdline/popt_common.h"
  33 #include "auth/kerberos/pac_utils.h"
  34 #include "wbclient.h"
  35
  36 struct pac_data {
  37         DATA_BLOB pac_blob;
  38 };
  39
  40 /* A helper function which avoids touching the local databases to
  41  * generate the session info, as we just want to verify the PAC
  42  * details, not the full local token */
  43 static NTSTATUS test_generate_session_info_pac(struct auth4_context *auth_ctx,
  44                                                TALLOC_CTX *mem_ctx,
  45                                                struct smb_krb5_context *smb_krb5_context,
  46                                                DATA_BLOB *pac_blob,
  47                                                const char *principal_name,
  48                                                const struct tsocket_address *remote_address,
  49                                                uint32_t session_info_flags,
  50                                                struct auth_session_info **session_info)
  51 {
  52         NTSTATUS nt_status;
  53         struct auth_user_info_dc *user_info_dc;
  54         TALLOC_CTX *tmp_ctx;
  55         struct pac_data *pac_data;
  56
  57         tmp_ctx = talloc_named(mem_ctx, 0, "gensec_gssapi_session_info context");
  58         NT_STATUS_HAVE_NO_MEMORY(tmp_ctx);
  59
  60         auth_ctx->private_data = pac_data = talloc_zero(auth_ctx, struct pac_data);
  61
  62         pac_data->pac_blob = *pac_blob;
  63
  64         talloc_steal(pac_data, pac_data->pac_blob.data);
  65         nt_status = kerberos_pac_blob_to_user_info_dc(tmp_ctx,
  66                                                       *pac_blob,
  67                                                       smb_krb5_context->krb5_context,
  68                                                       &user_info_dc,
  69                                                       NULL, NULL);
  70         if (!NT_STATUS_IS_OK(nt_status)) {
  71                 talloc_free(tmp_ctx);
  72                 return nt_status;
  73         }
  74
  75         if (user_info_dc->info->authenticated) {
  76                 session_info_flags |= AUTH_SESSION_INFO_AUTHENTICATED;
  77         }
  78
  79         session_info_flags |= AUTH_SESSION_INFO_SIMPLE_PRIVILEGES;
  80         nt_status = auth_generate_session_info(mem_ctx,
  81                                                NULL,
  82                                                NULL,
  83                                                user_info_dc, session_info_flags,
  84                                                session_info);
  85         if (!NT_STATUS_IS_OK(nt_status)) {
  86                 talloc_free(tmp_ctx);
  87                 return nt_status;
  88         }
  89
  90         talloc_free(tmp_ctx);
  91         return nt_status;
  92 }
  93
  94 static bool torture_decode_compare_pac(struct torture_context *tctx,
  95                                        DATA_BLOB pac)
  96 {
  97         struct wbcAuthUserParams params;
  98         struct wbcAuthUserInfo *info;
  99         struct wbcAuthErrorInfo *error;
 100         struct PAC_LOGON_INFO *logon_info;
 101         struct netr_SamInfo3 *info3;
 102         struct netr_SamBaseInfo *base;
 103         wbcErr wbc_err;
 104         NTSTATUS status;
 105         int sid_idx, i;
 106         char sid_str[50];
 107
 108         /* Let winbind decode the PAC */
 109         memset(&params, 0, sizeof(params));
 110         params.level = WBC_AUTH_USER_LEVEL_PAC;
 111         params.password.pac.data = pac.data;
 112         params.password.pac.length = pac.length;
 113
 114         wbc_err = wbcAuthenticateUserEx(&params, &info, &error);
 115         torture_assert(tctx, WBC_ERROR_IS_OK(wbc_err), wbcErrorString(wbc_err));
 116
 117         /* Decode the PAC internally */
 118         status = kerberos_pac_logon_info(tctx, pac, NULL, NULL, NULL, NULL, 0,
 119                                          &logon_info);
 120         torture_assert(tctx, NT_STATUS_IS_OK(status), "pac_logon_info");
 121         info3 = &logon_info->info3;
 122         base = &info3->base;
 123
 124         /* Compare the decoded data from winbind and from internal call */
 125         torture_assert(tctx, info->user_flags == base->user_flags, "user_flags");
 126         torture_assert_str_equal(tctx, info->account_name, base->account_name.string, "account_name");
 127         torture_assert_str_equal(tctx, info->full_name, base->full_name.string, "full_name");
 128         torture_assert_str_equal(tctx, info->domain_name, base->logon_domain.string, "domain_name");
 129         torture_assert(tctx, info->acct_flags == base->acct_flags, "acct_flags");
 130         torture_assert(tctx, info->logon_count == base->logon_count, "logon_count");
 131         torture_assert(tctx, info->bad_password_count == base->bad_password_count, "bad_password_count");
 132         torture_assert(tctx, info->logon_time == nt_time_to_unix(base->logon_time), "logon_time");
 133         torture_assert(tctx, info->logoff_time == nt_time_to_unix(base->logoff_time), "logoff_time");
 134         torture_assert(tctx, info->kickoff_time == nt_time_to_unix(base->kickoff_time), "kickoff_time");
 135         torture_assert(tctx, info->pass_last_set_time == nt_time_to_unix(base->last_password_change), "last_password_change");
 136         torture_assert(tctx, info->pass_can_change_time == nt_time_to_unix(base->allow_password_change), "allow_password_change");
 137         torture_assert(tctx, info->pass_must_change_time == nt_time_to_unix(base->force_password_change), "force_password_change");
 138         torture_assert(tctx, info->num_sids == 2 + base->groups.count + info3->sidcount, "num_sids");
 139
 140         sid_idx = 0;
 141         wbcSidToStringBuf(&info->sids[sid_idx].sid, sid_str, sizeof(sid_str));
 142         torture_assert(tctx,
 143                        dom_sid_equal(dom_sid_parse_talloc(tctx, sid_str),
 144                                      dom_sid_add_rid(tctx, base->domain_sid, base->rid)),
 145                        sid_str);
 146
 147         sid_idx++;
 148         wbcSidToStringBuf(&info->sids[sid_idx].sid, sid_str, sizeof(sid_str));
 149         torture_assert(tctx,
 150                        dom_sid_equal(dom_sid_parse_talloc(tctx, sid_str),
 151                                      dom_sid_add_rid(tctx, base->domain_sid, base->primary_gid)),
 152                        sid_str);
 153
 154         for(i = 0; i < base->groups.count; i++ ) {
 155                 sid_idx++;
 156                 wbcSidToStringBuf(&info->sids[sid_idx].sid,
 157                                   sid_str, sizeof(sid_str));
 158                 torture_assert(tctx,
 159                                dom_sid_equal(dom_sid_parse_talloc(tctx, sid_str),
 160                                              dom_sid_add_rid(tctx, base->domain_sid,
 161                                                              base->groups.rids[i].rid)),
 162                                sid_str);
 163         }
 164
 165         for(i = 0; i < info3->sidcount; i++) {
 166                 sid_idx++;
 167                 wbcSidToStringBuf(&info->sids[sid_idx].sid,
 168                                   sid_str, sizeof(sid_str));
 169                 torture_assert(tctx,
 170                                dom_sid_equal(dom_sid_parse_talloc(tctx, sid_str),
 171                                              info3->sids[i].sid),
 172                                sid_str);
 173         }
 174
 175         return true;
 176 }
 177
 178 static bool torture_winbind_pac(struct torture_context *tctx,
 179                                 const char *sasl_mech,
 180                                 const char *mech)
 181 {
 182         NTSTATUS status;
 183
 184         struct gensec_security *gensec_client_context;
 185         struct gensec_security *gensec_server_context;
 186         struct cli_credentials *machine_credentials;
 187
 188         DATA_BLOB client_to_server, server_to_client;
 189
 190         struct auth4_context *auth_context;
 191         struct auth_session_info *session_info;
 192         struct pac_data *pac_data;
 193
 194         TALLOC_CTX *tmp_ctx = talloc_new(tctx);
 195         torture_assert(tctx, tmp_ctx != NULL, "talloc_new() failed");
 196
 197         machine_credentials = cli_credentials_init(tmp_ctx);
 198         torture_assert(tctx, machine_credentials != NULL, "cli_credentials_init() failed");
 199
 200         cli_credentials_set_conf(machine_credentials, tctx->lp_ctx);
 201
 202         status = cli_credentials_set_machine_account(machine_credentials, tctx->lp_ctx);
 203         torture_assert_ntstatus_ok(tctx, status, " cli_credentials_set_machine_account() (for server) failed");
 204
 205         auth_context = talloc_zero(tmp_ctx, struct auth4_context);
 206         torture_assert(tctx, auth_context != NULL, "talloc_new() failed");
 207
 208         auth_context->generate_session_info_pac = test_generate_session_info_pac;
 209
 210         status = gensec_client_start(tctx, &gensec_client_context,
 211                                      lpcfg_gensec_settings(tctx, tctx->lp_ctx));
 212         torture_assert_ntstatus_ok(tctx, status, "gensec_client_start (client) failed");
 213
 214         status = gensec_set_target_hostname(gensec_client_context, cli_credentials_get_workstation(machine_credentials));
 215         torture_assert_ntstatus_ok(tctx, status, "gensec_set_target_hostname (client) failed");
 216
 217         status = gensec_set_credentials(gensec_client_context, cmdline_credentials);
 218         torture_assert_ntstatus_ok(tctx, status, "gensec_set_credentials (client) failed");
 219
 220         if (sasl_mech) {
 221                 status = gensec_start_mech_by_sasl_name(gensec_client_context, sasl_mech);
 222                 torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_sasl_name (client) failed");
 223         } else {
 224                 status = gensec_start_mech_by_name(gensec_client_context, mech);
 225                 torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_name (client) failed");
 226         }
 227
 228
 229         status = gensec_server_start(tctx,
 230                                      lpcfg_gensec_settings(tctx, tctx->lp_ctx),
 231                                      auth_context, &gensec_server_context);
 232         torture_assert_ntstatus_ok(tctx, status, "gensec_server_start (server) failed");
 233
 234         status = gensec_set_credentials(gensec_server_context, machine_credentials);
 235         torture_assert_ntstatus_ok(tctx, status, "gensec_set_credentials (server) failed");
 236
 237         if (sasl_mech) {
 238                 status = gensec_start_mech_by_sasl_name(gensec_server_context, sasl_mech);
 239                 torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_sasl_name (server) failed");
 240         } else {
 241                 status = gensec_start_mech_by_name(gensec_server_context, mech);
 242                 torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_name (server) failed");
 243         }
 244
 245         server_to_client = data_blob(NULL, 0);
 246
 247         do {
 248                 /* Do a client-server update dance */
 249                 status = gensec_update(gensec_client_context, tmp_ctx, server_to_client, &client_to_server);
 250                 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {;
 251                         torture_assert_ntstatus_ok(tctx, status, "gensec_update (client) failed");
 252                 }
 253
 254                 status = gensec_update(gensec_server_context, tmp_ctx, client_to_server, &server_to_client);
 255                 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {;
 256                         torture_assert_ntstatus_ok(tctx, status, "gensec_update (server) failed");
 257                 }
 258
 259                 if (NT_STATUS_IS_OK(status)) {
 260                         break;
 261                 }
 262         } while (1);
 263
 264         /* Extract the PAC using Samba's code */
 265
 266         status = gensec_session_info(gensec_server_context, gensec_server_context, &session_info);
 267         torture_assert_ntstatus_ok(tctx, status, "gensec_session_info failed");
 268
 269         pac_data = talloc_get_type(auth_context->private_data, struct pac_data);
 270
 271         torture_assert(tctx, pac_data != NULL, "gensec_update failed to fill in pac_data in auth_context");
 272         torture_assert(tctx, pac_data->pac_blob.data != NULL, "pac_blob not present");
 273         torture_decode_compare_pac(tctx, pac_data->pac_blob);
 274
 275         return true;
 276 }
 277
 278 static bool torture_winbind_pac_gssapi(struct torture_context *tctx)
 279 {
 280         return torture_winbind_pac(tctx, "GSSAPI", NULL);
 281 }
 282
 283 static bool torture_winbind_pac_gss_spnego(struct torture_context *tctx)
 284 {
 285         return torture_winbind_pac(tctx, "GSS-SPNEGO", NULL);
 286 }
 287
 288 static bool torture_winbind_pac_krb5(struct torture_context *tctx)
 289 {
 290         return torture_winbind_pac(tctx, NULL, "krb5");
 291 }
 292
 293 NTSTATUS torture_winbind_init(void)
 294 {
 295         struct torture_suite *suite = torture_suite_create(talloc_autofree_context(), "winbind");
 296         struct torture_suite *pac_suite;
 297         torture_suite_add_suite(suite, torture_winbind_struct_init());
 298         torture_suite_add_suite(suite, torture_wbclient());
 299
 300         pac_suite = torture_suite_create(talloc_autofree_context(), "pac");
 301         torture_suite_add_simple_test(pac_suite,
 302                                       "GSSAPI", torture_winbind_pac_gssapi);
 303         torture_suite_add_simple_test(pac_suite,
 304                                       "GSS-SPNEGO", torture_winbind_pac_gss_spnego);
 305         torture_suite_add_simple_test(pac_suite,
 306                                       "krb5", torture_winbind_pac_krb5);
 307
 308         pac_suite->description = talloc_strdup(suite, "Winbind Kerberos PAC tests");
 309
 310         torture_suite_add_suite(suite, pac_suite);
 311
 312         suite->description = talloc_strdup(suite, "WINBIND tests");
 313
 314         torture_register_suite(suite);
 315
 316         return NT_STATUS_OK;
 317 }