auth/auth_log.c

   1 /*
   2
   3    Authentication and authorization logging
   4
   5    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2017
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 /*
  22  * Debug log levels for authentication logging (these both map to
  23  * LOG_NOTICE in syslog)
  24  */
  25 #define AUTH_FAILURE_LEVEL 2
  26 #define AUTH_SUCCESS_LEVEL 3
  27 #define AUTHZ_SUCCESS_LEVEL 4
  28
  29 /* 5 is used for both authentication and authorization */
  30 #define AUTH_ANONYMOUS_LEVEL 5
  31 #define AUTHZ_ANONYMOUS_LEVEL 5
  32
  33 #define AUTHZ_JSON_TYPE "Authorization"
  34 #define AUTH_JSON_TYPE  "Authentication"
  35
  36 /*
  37  * JSON message version numbers
  38  *
  39  * If adding a field increment the minor version
  40  * If removing or changing the format/meaning of a field
  41  * increment the major version.
  42  */
  43 #define AUTH_MAJOR 1
  44 #define AUTH_MINOR 2
  45 #define AUTHZ_MAJOR 1
  46 #define AUTHZ_MINOR 1
  47
  48 #include "includes.h"
  49 #include "../lib/tsocket/tsocket.h"
  50 #include "common_auth.h"
  51 #include "lib/util/util_str_escape.h"
  52 #include "libcli/security/dom_sid.h"
  53 #include "libcli/security/security_token.h"
  54 #include "librpc/gen_ndr/server_id.h"
  55 #include "source4/lib/messaging/messaging.h"
  56 #include "source4/lib/messaging/irpc.h"
  57 #include "lib/util/server_id_db.h"
  58 #include "lib/param/param.h"
  59 #include "librpc/ndr/libndr.h"
  60 #include "librpc/gen_ndr/windows_event_ids.h"
  61 #include "lib/audit_logging/audit_logging.h"
  62
  63 /*
  64  * Determine the type of the password supplied for the
  65  * authorisation attempt.
  66  *
  67  */
  68 static const char* get_password_type(const struct auth_usersupplied_info *ui);
  69
  70 #ifdef HAVE_JANSSON
  71
  72 #include <jansson.h>
  73 #include "system/time.h"
  74
  75 /*
  76  * Write the json object to the debug logs.
  77  *
  78  */
  79 static void log_json(struct imessaging_context *msg_ctx,
  80                      struct loadparm_context *lp_ctx,
  81                      struct json_object *object,
  82                      int debug_class,
  83                      int debug_level)
  84 {
  85         audit_log_json(object, debug_class, debug_level);
  86         if (msg_ctx && lp_ctx && lpcfg_auth_event_notification(lp_ctx)) {
  87                 audit_message_send(msg_ctx,
  88                                    AUTH_EVENT_NAME,
  89                                    MSG_AUTH_LOG,
  90                                    object);
  91         }
  92 }
  93
  94 /*
  95  * Determine the Windows logon type for the current authorisation attempt.
  96  *
  97  * Currently Samba only supports
  98  *
  99  * 2 Interactive      A user logged on to this computer.
 100  * 3 Network          A user or computer logged on to this computer from
 101  *                    the network.
 102  * 8 NetworkCleartext A user logged on to this computer from the network.
 103  *                    The user's password was passed to the authentication
 104  *                    package in its unhashed form.
 105  *
 106  */
 107 static enum event_logon_type get_logon_type(
 108         const struct auth_usersupplied_info *ui)
 109 {
 110         if ((ui->logon_parameters & MSV1_0_CLEARTEXT_PASSWORD_SUPPLIED)
 111            || (ui->password_state == AUTH_PASSWORD_PLAIN)) {
 112                 return EVT_LOGON_NETWORK_CLEAR_TEXT;
 113         } else if (ui->flags & USER_INFO_INTERACTIVE_LOGON) {
 114                 return EVT_LOGON_INTERACTIVE;
 115         }
 116         return EVT_LOGON_NETWORK;
 117 }
 118
 119 /*
 120  * Write a machine parsable json formatted authentication log entry.
 121  *
 122  * IF removing or changing the format/meaning of a field please update the
 123  *    major version number AUTH_MAJOR
 124  *
 125  * IF adding a new field please update the minor version number AUTH_MINOR
 126  *
 127  *  To process the resulting log lines from the commend line use jq to
 128  *  parse the json.
 129  *
 130  *  grep "^  {" log file |
 131  *  jq -rc '"\(.timestamp)\t\(.Authentication.status)\t
 132  *           \(.Authentication.clientDomain)\t
 133  *           \(.Authentication.clientAccount)
 134  *           \t\(.Authentication.workstation)
 135  *           \t\(.Authentication.remoteAddress)
 136  *           \t\(.Authentication.localAddress)"'
 137  */
 138 static void log_authentication_event_json(
 139         struct imessaging_context *msg_ctx,
 140         struct loadparm_context *lp_ctx,
 141         const struct timeval *start_time,
 142         const struct auth_usersupplied_info *ui,
 143         NTSTATUS status,
 144         const char *domain_name,
 145         const char *account_name,
 146         const char *unix_username,
 147         struct dom_sid *sid,
 148         enum event_id_type event_id,
 149         int debug_level)
 150 {
 151         struct json_object wrapper = json_empty_object;
 152         struct json_object authentication = json_empty_object;
 153         char negotiate_flags[11];
 154         char logon_id[19];
 155         int rc = 0;
 156
 157         authentication = json_new_object();
 158         if (json_is_invalid(&authentication)) {
 159                 goto failure;
 160         }
 161         rc = json_add_version(&authentication, AUTH_MAJOR, AUTH_MINOR);
 162         if (rc != 0) {
 163                 goto failure;
 164         }
 165         rc = json_add_int(&authentication,
 166                           "eventId",
 167                           event_id);
 168         if (rc != 0) {
 169                 goto failure;
 170         }
 171         snprintf(logon_id,
 172                  sizeof( logon_id),
 173                  "%"PRIx64"",
 174                  ui->logon_id);
 175         rc = json_add_string(&authentication, "logonId", logon_id);
 176         if (rc != 0) {
 177                 goto failure;
 178         }
 179         rc = json_add_int(&authentication, "logonType", get_logon_type(ui));
 180         if (rc != 0) {
 181                 goto failure;
 182         }
 183         rc = json_add_string(&authentication, "status", nt_errstr(status));
 184         if (rc != 0) {
 185                 goto failure;
 186         }
 187         rc = json_add_address(&authentication, "localAddress", ui->local_host);
 188         if (rc != 0) {
 189                 goto failure;
 190         }
 191         rc =
 192             json_add_address(&authentication, "remoteAddress", ui->remote_host);
 193         if (rc != 0) {
 194                 goto failure;
 195         }
 196         rc = json_add_string(
 197             &authentication, "serviceDescription", ui->service_description);
 198         if (rc != 0) {
 199                 goto failure;
 200         }
 201         rc = json_add_string(
 202             &authentication, "authDescription", ui->auth_description);
 203         if (rc != 0) {
 204                 goto failure;
 205         }
 206         rc = json_add_string(
 207             &authentication, "clientDomain", ui->client.domain_name);
 208         if (rc != 0) {
 209                 goto failure;
 210         }
 211         rc = json_add_string(
 212             &authentication, "clientAccount", ui->client.account_name);
 213         if (rc != 0) {
 214                 goto failure;
 215         }
 216         rc = json_add_string(
 217             &authentication, "workstation", ui->workstation_name);
 218         if (rc != 0) {
 219                 goto failure;
 220         }
 221         rc = json_add_string(&authentication, "becameAccount", account_name);
 222         if (rc != 0) {
 223                 goto failure;
 224         }
 225         rc = json_add_string(&authentication, "becameDomain", domain_name);
 226         if (rc != 0) {
 227                 goto failure;
 228         }
 229         rc = json_add_sid(&authentication, "becameSid", sid);
 230         if (rc != 0) {
 231                 goto failure;
 232         }
 233         rc = json_add_string(
 234             &authentication, "mappedAccount", ui->mapped.account_name);
 235         if (rc != 0) {
 236                 goto failure;
 237         }
 238         rc = json_add_string(
 239             &authentication, "mappedDomain", ui->mapped.domain_name);
 240         if (rc != 0) {
 241                 goto failure;
 242         }
 243         rc = json_add_string(&authentication,
 244                              "netlogonComputer",
 245                              ui->netlogon_trust_account.computer_name);
 246         if (rc != 0) {
 247                 goto failure;
 248         }
 249         rc = json_add_string(&authentication,
 250                              "netlogonTrustAccount",
 251                              ui->netlogon_trust_account.account_name);
 252         if (rc != 0) {
 253                 goto failure;
 254         }
 255         snprintf(negotiate_flags,
 256                  sizeof( negotiate_flags),
 257                  "0x%08X",
 258                  ui->netlogon_trust_account.negotiate_flags);
 259         rc = json_add_string(
 260             &authentication, "netlogonNegotiateFlags", negotiate_flags);
 261         if (rc != 0) {
 262                 goto failure;
 263         }
 264         rc = json_add_int(&authentication,
 265                           "netlogonSecureChannelType",
 266                           ui->netlogon_trust_account.secure_channel_type);
 267         if (rc != 0) {
 268                 goto failure;
 269         }
 270         rc = json_add_sid(&authentication,
 271                           "netlogonTrustAccountSid",
 272                           ui->netlogon_trust_account.sid);
 273         if (rc != 0) {
 274                 goto failure;
 275         }
 276         rc = json_add_string(
 277             &authentication, "passwordType", get_password_type(ui));
 278         if (rc != 0) {
 279                 goto failure;
 280         }
 281
 282         wrapper = json_new_object();
 283         if (json_is_invalid(&wrapper)) {
 284                 goto failure;
 285         }
 286         rc = json_add_timestamp(&wrapper);
 287         if (rc != 0) {
 288                 goto failure;
 289         }
 290         rc = json_add_string(&wrapper, "type", AUTH_JSON_TYPE);
 291         if (rc != 0) {
 292                 goto failure;
 293         }
 294         rc = json_add_object(&wrapper, AUTH_JSON_TYPE, &authentication);
 295         if (rc != 0) {
 296                 goto failure;
 297         }
 298
 299         /*
 300          * While not a general-purpose profiling solution this will
 301          * assist some to determine how long NTLM and KDC
 302          * authentication takes once this process can handle it.  This
 303          * covers transactions elsewhere but not (eg) the delay while
 304          * this is waiting unread on the input socket.
 305          */
 306         if (start_time != NULL) {
 307                 struct timeval current_time = timeval_current();
 308                 uint64_t duration =  usec_time_diff(&current_time,
 309                                                     start_time);
 310                 rc = json_add_int(&authentication, "duration", duration);
 311                 if (rc != 0) {
 312                         goto failure;
 313                 }
 314         }
 315
 316         log_json(msg_ctx,
 317                  lp_ctx,
 318                  &wrapper,
 319                  DBGC_AUTH_AUDIT_JSON,
 320                  debug_level);
 321         json_free(&wrapper);
 322         return;
 323 failure:
 324         /*
 325          * On a failure authentication will not have been added to wrapper so it
 326          * needs to be freed to avoid a leak.
 327          *
 328          */
 329         json_free(&authentication);
 330         json_free(&wrapper);
 331         DBG_ERR("Failed to write authentication event JSON log message\n");
 332 }
 333
 334 /*
 335  * Log details of a successful authorization to a service,
 336  * in a machine parsable json format
 337  *
 338  * IF removing or changing the format/meaning of a field please update the
 339  *    major version number AUTHZ_MAJOR
 340  *
 341  * IF adding a new field please update the minor version number AUTHZ_MINOR
 342  *
 343  *  To process the resulting log lines from the commend line use jq to
 344  *  parse the json.
 345  *
 346  *  grep "^  {" log_file |\
 347  *  jq -rc '"\(.timestamp)\t
 348  *           \(.Authorization.domain)\t
 349  *           \(.Authorization.account)\t
 350  *           \(.Authorization.remoteAddress)"'
 351  *
 352  */
 353 static void log_successful_authz_event_json(
 354         struct imessaging_context *msg_ctx,
 355         struct loadparm_context *lp_ctx,
 356         const struct tsocket_address *remote,
 357         const struct tsocket_address *local,
 358         const char *service_description,
 359         const char *auth_type,
 360         const char *transport_protection,
 361         struct auth_session_info *session_info,
 362         int debug_level)
 363 {
 364         struct json_object wrapper = json_empty_object;
 365         struct json_object authorization = json_empty_object;
 366         char account_flags[11];
 367         int rc = 0;
 368
 369         authorization = json_new_object();
 370         if (json_is_invalid(&authorization)) {
 371                 goto failure;
 372         }
 373         rc = json_add_version(&authorization, AUTHZ_MAJOR, AUTHZ_MINOR);
 374         if (rc != 0) {
 375                 goto failure;
 376         }
 377         rc = json_add_address(&authorization, "localAddress", local);
 378         if (rc != 0) {
 379                 goto failure;
 380         }
 381         rc = json_add_address(&authorization, "remoteAddress", remote);
 382         if (rc != 0) {
 383                 goto failure;
 384         }
 385         rc = json_add_string(
 386             &authorization, "serviceDescription", service_description);
 387         if (rc != 0) {
 388                 goto failure;
 389         }
 390         rc = json_add_string(&authorization, "authType", auth_type);
 391         if (rc != 0) {
 392                 goto failure;
 393         }
 394         rc = json_add_string(
 395             &authorization, "domain", session_info->info->domain_name);
 396         if (rc != 0) {
 397                 goto failure;
 398         }
 399         rc = json_add_string(
 400             &authorization, "account", session_info->info->account_name);
 401         if (rc != 0) {
 402                 goto failure;
 403         }
 404         rc = json_add_sid(
 405             &authorization, "sid", &session_info->security_token->sids[0]);
 406         if (rc != 0) {
 407                 goto failure;
 408         }
 409         rc = json_add_guid(
 410             &authorization, "sessionId", &session_info->unique_session_token);
 411         if (rc != 0) {
 412                 goto failure;
 413         }
 414         rc = json_add_string(
 415             &authorization, "logonServer", session_info->info->logon_server);
 416         if (rc != 0) {
 417                 goto failure;
 418         }
 419         rc = json_add_string(
 420             &authorization, "transportProtection", transport_protection);
 421         if (rc != 0) {
 422                 goto failure;
 423         }
 424
 425         snprintf(account_flags,
 426                  sizeof(account_flags),
 427                  "0x%08X",
 428                  session_info->info->acct_flags);
 429         rc = json_add_string(&authorization, "accountFlags", account_flags);
 430         if (rc != 0) {
 431                 goto failure;
 432         }
 433
 434         wrapper = json_new_object();
 435         if (json_is_invalid(&wrapper)) {
 436                 goto failure;
 437         }
 438         rc = json_add_timestamp(&wrapper);
 439         if (rc != 0) {
 440                 goto failure;
 441         }
 442         rc = json_add_string(&wrapper, "type", AUTHZ_JSON_TYPE);
 443         if (rc != 0) {
 444                 goto failure;
 445         }
 446         rc = json_add_object(&wrapper, AUTHZ_JSON_TYPE, &authorization);
 447         if (rc != 0) {
 448                 goto failure;
 449         }
 450
 451         log_json(msg_ctx,
 452                  lp_ctx,
 453                  &wrapper,
 454                  DBGC_AUTH_AUDIT_JSON,
 455                  debug_level);
 456         json_free(&wrapper);
 457         return;
 458 failure:
 459         /*
 460          * On a failure authorization will not have been added to wrapper so it
 461          * needs to be freed to avoid a leak.
 462          *
 463          */
 464         json_free(&authorization);
 465         json_free(&wrapper);
 466         DBG_ERR("Unable to log Authentication event JSON audit message\n");
 467 }
 468
 469 #else
 470
 471 static void log_no_json(struct imessaging_context *msg_ctx,
 472                         struct loadparm_context *lp_ctx)
 473 {
 474         if (msg_ctx && lp_ctx && lpcfg_auth_event_notification(lp_ctx)) {
 475                 static bool auth_event_logged = false;
 476                 if (auth_event_logged == false) {
 477                         auth_event_logged = true;
 478                         DBG_ERR("auth event notification = true but Samba was "
 479                                 "not compiled with jansson\n");
 480                 }
 481         } else {
 482                 static bool json_logged = false;
 483                 if (json_logged == false) {
 484                         json_logged = true;
 485                         DBG_NOTICE("JSON auth logs not available unless "
 486                                    "compiled with jansson\n");
 487                 }
 488         }
 489
 490         return;
 491 }
 492
 493 static void log_authentication_event_json(
 494         struct imessaging_context *msg_ctx,
 495         struct loadparm_context *lp_ctx,
 496         const struct timeval *start_time,
 497         const struct auth_usersupplied_info *ui,
 498         NTSTATUS status,
 499         const char *domain_name,
 500         const char *account_name,
 501         const char *unix_username,
 502         struct dom_sid *sid,
 503         enum event_id_type event_id,
 504         int debug_level)
 505 {
 506         log_no_json(msg_ctx, lp_ctx);
 507         return;
 508 }
 509
 510 static void log_successful_authz_event_json(
 511         struct imessaging_context *msg_ctx,
 512         struct loadparm_context *lp_ctx,
 513         const struct tsocket_address *remote,
 514         const struct tsocket_address *local,
 515         const char *service_description,
 516         const char *auth_type,
 517         const char *transport_protection,
 518         struct auth_session_info *session_info,
 519         int debug_level)
 520 {
 521         log_no_json(msg_ctx, lp_ctx);
 522         return;
 523 }
 524
 525 #endif
 526
 527 /*
 528  * Determine the type of the password supplied for the
 529  * authorisation attempt.
 530  *
 531  */
 532 static const char* get_password_type(const struct auth_usersupplied_info *ui)
 533 {
 534
 535         const char *password_type = NULL;
 536
 537         if (ui->password_type != NULL) {
 538                 password_type = ui->password_type;
 539         } else if (ui->auth_description != NULL &&
 540                    strncmp("ServerAuthenticate", ui->auth_description, 18) == 0)
 541         {
 542                 if (ui->netlogon_trust_account.negotiate_flags
 543                     & NETLOGON_NEG_SUPPORTS_AES) {
 544                         password_type = "HMAC-SHA256";
 545                 } else if (ui->netlogon_trust_account.negotiate_flags
 546                            & NETLOGON_NEG_STRONG_KEYS) {
 547                         password_type = "HMAC-MD5";
 548                 } else {
 549                         password_type = "DES";
 550                 }
 551         } else if (ui->password_state == AUTH_PASSWORD_RESPONSE &&
 552                    (ui->logon_parameters & MSV1_0_ALLOW_MSVCHAPV2) &&
 553                    ui->password.response.nt.length == 24) {
 554                 password_type = "MSCHAPv2";
 555         } else if ((ui->logon_parameters & MSV1_0_CLEARTEXT_PASSWORD_SUPPLIED)
 556                    || (ui->password_state == AUTH_PASSWORD_PLAIN)) {
 557                 password_type = "Plaintext";
 558         } else if (ui->password_state == AUTH_PASSWORD_HASH) {
 559                 password_type = "Supplied-NT-Hash";
 560         } else if (ui->password_state == AUTH_PASSWORD_RESPONSE
 561                    && ui->password.response.nt.length > 24) {
 562                 password_type = "NTLMv2";
 563         } else if (ui->password_state == AUTH_PASSWORD_RESPONSE
 564                    && ui->password.response.nt.length == 24) {
 565                 password_type = "NTLMv1";
 566         } else if (ui->password_state == AUTH_PASSWORD_RESPONSE
 567                    && ui->password.response.lanman.length == 24) {
 568                 password_type = "LANMan";
 569         } else if (ui->password_state == AUTH_PASSWORD_RESPONSE
 570                    && ui->password.response.nt.length == 0
 571                    && ui->password.response.lanman.length == 0) {
 572                 password_type = "No-Password";
 573         }
 574         return password_type;
 575 }
 576
 577 /*
 578  * Write a human readable authentication log entry.
 579  *
 580  */
 581 static void log_authentication_event_human_readable(
 582         const struct auth_usersupplied_info *ui,
 583         NTSTATUS status,
 584         const char *domain_name,
 585         const char *account_name,
 586         const char *unix_username,
 587         struct dom_sid *sid,
 588         int debug_level)
 589 {
 590         TALLOC_CTX *frame = NULL;
 591
 592         const char *ts = NULL;             /* formatted current time      */
 593         char *remote = NULL;               /* formatted remote host       */
 594         char *local = NULL;                /* formatted local host        */
 595         char *nl = NULL;                   /* NETLOGON details if present */
 596         char *trust_computer_name = NULL;
 597         char *trust_account_name = NULL;
 598         char *logon_line = NULL;
 599         const char *password_type = NULL;
 600
 601         frame = talloc_stackframe();
 602
 603         password_type = get_password_type(ui);
 604         /* Get the current time */
 605         ts = audit_get_timestamp(frame);
 606
 607         /* Only log the NETLOGON details if they are present */
 608         if (ui->netlogon_trust_account.computer_name ||
 609             ui->netlogon_trust_account.account_name) {
 610                 trust_computer_name = log_escape(frame,
 611                         ui->netlogon_trust_account.computer_name);
 612                 trust_account_name  = log_escape(frame,
 613                         ui->netlogon_trust_account.account_name);
 614                 nl = talloc_asprintf(frame,
 615                         " NETLOGON computer [%s] trust account [%s]",
 616                         trust_computer_name, trust_account_name);
 617         }
 618
 619         remote = tsocket_address_string(ui->remote_host, frame);
 620         local = tsocket_address_string(ui->local_host, frame);
 621
 622         if (NT_STATUS_IS_OK(status)) {
 623                 struct dom_sid_buf sid_buf;
 624
 625                 logon_line = talloc_asprintf(frame,
 626                                              " became [%s]\\[%s] [%s].",
 627                                              log_escape(frame, domain_name),
 628                                              log_escape(frame, account_name),
 629                                              dom_sid_str_buf(sid, &sid_buf));
 630         } else {
 631                 logon_line = talloc_asprintf(
 632                                 frame,
 633                                 " mapped to [%s]\\[%s].",
 634                                 log_escape(frame, ui->mapped.domain_name),
 635                                 log_escape(frame, ui->mapped.account_name));
 636         }
 637
 638         DEBUGC(DBGC_AUTH_AUDIT, debug_level,
 639                ("Auth: [%s,%s] user [%s]\\[%s]"
 640                 " at [%s] with [%s] status [%s]"
 641                 " workstation [%s] remote host [%s]"
 642                 "%s local host [%s]"
 643                 " %s\n",
 644                 ui->service_description,
 645                 ui->auth_description,
 646                 log_escape(frame, ui->client.domain_name),
 647                 log_escape(frame, ui->client.account_name),
 648                 ts,
 649                 password_type,
 650                 nt_errstr(status),
 651                 log_escape(frame, ui->workstation_name),
 652                 remote,
 653                 logon_line,
 654                 local,
 655                 nl ? nl : ""
 656         ));
 657
 658         talloc_free(frame);
 659 }
 660
 661 /*
 662  * Log details of an authentication attempt.
 663  * Successful and unsuccessful attempts are logged.
 664  *
 665  * NOTE: msg_ctx and lp_ctx is optional, but when supplied allows streaming the
 666  * authentication events over the message bus.
 667  */
 668 void log_authentication_event(
 669         struct imessaging_context *msg_ctx,
 670         struct loadparm_context *lp_ctx,
 671         const struct timeval *start_time,
 672         const struct auth_usersupplied_info *ui,
 673         NTSTATUS status,
 674         const char *domain_name,
 675         const char *account_name,
 676         const char *unix_username,
 677         struct dom_sid *sid)
 678 {
 679         /* set the log level */
 680         int debug_level = AUTH_FAILURE_LEVEL;
 681         enum event_id_type event_id = EVT_ID_UNSUCCESSFUL_LOGON;
 682
 683         if (NT_STATUS_IS_OK(status)) {
 684                 debug_level = AUTH_SUCCESS_LEVEL;
 685                 event_id = EVT_ID_SUCCESSFUL_LOGON;
 686                 if (dom_sid_equal(sid, &global_sid_Anonymous)) {
 687                         debug_level = AUTH_ANONYMOUS_LEVEL;
 688                 }
 689         }
 690
 691         if (CHECK_DEBUGLVLC(DBGC_AUTH_AUDIT, debug_level)) {
 692                 log_authentication_event_human_readable(ui,
 693                                                         status,
 694                                                         domain_name,
 695                                                         account_name,
 696                                                         unix_username,
 697                                                         sid,
 698                                                         debug_level);
 699         }
 700         if (CHECK_DEBUGLVLC(DBGC_AUTH_AUDIT_JSON, debug_level) ||
 701             (msg_ctx && lp_ctx && lpcfg_auth_event_notification(lp_ctx))) {
 702                 log_authentication_event_json(msg_ctx,
 703                                               lp_ctx,
 704                                               start_time,
 705                                               ui,
 706                                               status,
 707                                               domain_name,
 708                                               account_name,
 709                                               unix_username,
 710                                               sid,
 711                                               event_id,
 712                                               debug_level);
 713         }
 714 }
 715
 716
 717
 718 /*
 719  * Log details of a successful authorization to a service,
 720  * in a human readable format.
 721  *
 722  */
 723 static void log_successful_authz_event_human_readable(
 724         const struct tsocket_address *remote,
 725         const struct tsocket_address *local,
 726         const char *service_description,
 727         const char *auth_type,
 728         const char *transport_protection,
 729         struct auth_session_info *session_info,
 730         int debug_level)
 731 {
 732         TALLOC_CTX *frame = NULL;
 733
 734         const char *ts = NULL;       /* formatted current time      */
 735         char *remote_str = NULL;     /* formatted remote host       */
 736         char *local_str = NULL;      /* formatted local host        */
 737         struct dom_sid_buf sid_buf;
 738
 739         frame = talloc_stackframe();
 740
 741         /* Get the current time */
 742         ts = audit_get_timestamp(frame);
 743
 744         remote_str = tsocket_address_string(remote, frame);
 745         local_str = tsocket_address_string(local, frame);
 746
 747         DEBUGC(DBGC_AUTH_AUDIT, debug_level,
 748                ("Successful AuthZ: [%s,%s] user [%s]\\[%s] [%s]"
 749                 " at [%s]"
 750                 " Remote host [%s]"
 751                 " local host [%s]\n",
 752                 service_description,
 753                 auth_type,
 754                 log_escape(frame, session_info->info->domain_name),
 755                 log_escape(frame, session_info->info->account_name),
 756                 dom_sid_str_buf(&session_info->security_token->sids[0],
 757                                 &sid_buf),
 758                 ts,
 759                 remote_str,
 760                 local_str));
 761
 762         talloc_free(frame);
 763 }
 764
 765 /*
 766  * Log details of a successful authorization to a service.
 767  *
 768  * Only successful authorizations are logged.  For clarity:
 769  * - NTLM bad passwords will be recorded by log_authentication_event
 770  * - Kerberos decrypt failures need to be logged in gensec_gssapi et al
 771  *
 772  * The service may later refuse authorization due to an ACL.
 773  *
 774  * NOTE: msg_ctx and lp_ctx is optional, but when supplied allows streaming the
 775  * authentication events over the message bus.
 776  */
 777 void log_successful_authz_event(
 778         struct imessaging_context *msg_ctx,
 779         struct loadparm_context *lp_ctx,
 780         const struct tsocket_address *remote,
 781         const struct tsocket_address *local,
 782         const char *service_description,
 783         const char *auth_type,
 784         const char *transport_protection,
 785         struct auth_session_info *session_info)
 786 {
 787         int debug_level = AUTHZ_SUCCESS_LEVEL;
 788
 789         /* set the log level */
 790         if (security_token_is_anonymous(session_info->security_token)) {
 791                 debug_level = AUTH_ANONYMOUS_LEVEL;
 792         }
 793
 794         if (CHECK_DEBUGLVLC(DBGC_AUTH_AUDIT, debug_level)) {
 795                 log_successful_authz_event_human_readable(remote,
 796                                                           local,
 797                                                           service_description,
 798                                                           auth_type,
 799                                                           transport_protection,
 800                                                           session_info,
 801                                                           debug_level);
 802         }
 803         if (CHECK_DEBUGLVLC(DBGC_AUTH_AUDIT_JSON, debug_level) ||
 804             (msg_ctx && lp_ctx && lpcfg_auth_event_notification(lp_ctx))) {
 805                 log_successful_authz_event_json(msg_ctx, lp_ctx,
 806                                                 remote,
 807                                                 local,
 808                                                 service_description,
 809                                                 auth_type,
 810                                                 transport_protection,
 811                                                 session_info,
 812                                                 debug_level);
 813         }
 814 }