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 0
  45 #define AUTHZ_MAJOR 1
  46 #define AUTHZ_MINOR 0
  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
  60 /*
  61  * Get a human readable timestamp.
  62  *
  63  * Returns the current time formatted as
  64  *  "Tue, 14 Mar 2017 08:38:42.209028 NZDT"
  65  *
  66  * The returned string is allocated by talloc in the supplied context.
  67  * It is the callers responsibility to free it.
  68  *
  69  */
  70 static const char* get_timestamp( TALLOC_CTX *frame )
  71 {
  72         char buffer[40];        /* formatted time less usec and timezone */
  73         char tz[10];            /* formatted time zone                   */
  74         struct tm* tm_info;     /* current local time                    */
  75         struct timeval tv;      /* current system time                   */
  76         int r;                  /* response code from gettimeofday       */
  77         const char * ts;        /* formatted time stamp                  */
  78
  79         r = gettimeofday(&tv, NULL);
  80         if (r) {
  81                 DBG_ERR("Unable to get time of day: (%d) %s\n",
  82                         errno,
  83                         strerror( errno));
  84                 return NULL;
  85         }
  86
  87         tm_info = localtime(&tv.tv_sec);
  88         if (tm_info == NULL) {
  89                 DBG_ERR("Unable to determine local time\n");
  90                 return NULL;
  91         }
  92
  93         strftime(buffer, sizeof(buffer)-1, "%a, %d %b %Y %H:%M:%S", tm_info);
  94         strftime(tz, sizeof(tz)-1, "%Z", tm_info);
  95         ts = talloc_asprintf(frame, "%s.%06ld %s", buffer, tv.tv_usec, tz);
  96         if (ts == NULL) {
  97                 DBG_ERR("Out of memory formatting time stamp\n");
  98         }
  99         return ts;
 100 }
 101
 102 /*
 103  * Determine the type of the password supplied for the
 104  * authorisation attempt.
 105  *
 106  */
 107 static const char* get_password_type(const struct auth_usersupplied_info *ui);
 108
 109 #ifdef HAVE_JANSSON
 110
 111 #include <jansson.h>
 112 #include "system/time.h"
 113
 114 /*
 115  * Context required by the JSON generation
 116  *  routines
 117  *
 118  */
 119 struct json_context {
 120         json_t *root;
 121         bool error;
 122 };
 123
 124 static NTSTATUS get_auth_event_server(struct imessaging_context *msg_ctx,
 125                                       struct server_id *auth_event_server)
 126 {
 127         NTSTATUS status;
 128         TALLOC_CTX *frame = talloc_stackframe();
 129         unsigned num_servers, i;
 130         struct server_id *servers;
 131
 132         status = irpc_servers_byname(msg_ctx, frame,
 133                                      AUTH_EVENT_NAME,
 134                                      &num_servers, &servers);
 135
 136         if (!NT_STATUS_IS_OK(status)) {
 137                 DBG_NOTICE("Failed to find 'auth_event' registered on the "
 138                            "message bus to send JSON authentication events to: %s\n",
 139                            nt_errstr(status));
 140                 TALLOC_FREE(frame);
 141                 return status;
 142         }
 143
 144         /*
 145          * Select the first server that is listening, because
 146          * we get connection refused as
 147          * NT_STATUS_OBJECT_NAME_NOT_FOUND without waiting
 148          */
 149         for (i = 0; i < num_servers; i++) {
 150                 status = imessaging_send(msg_ctx, servers[i], MSG_PING,
 151                                          &data_blob_null);
 152                 if (NT_STATUS_IS_OK(status)) {
 153                         *auth_event_server = servers[i];
 154                         TALLOC_FREE(frame);
 155                         return NT_STATUS_OK;
 156                 }
 157         }
 158         DBG_NOTICE("Failed to find a running 'auth_event' server "
 159                    "registered on the message bus to send JSON "
 160                    "authentication events to\n");
 161         TALLOC_FREE(frame);
 162         return NT_STATUS_OBJECT_NAME_NOT_FOUND;
 163 }
 164
 165 static void auth_message_send(struct imessaging_context *msg_ctx,
 166                               const char *json)
 167 {
 168         struct server_id        auth_event_server;
 169         NTSTATUS status;
 170         DATA_BLOB json_blob = data_blob_string_const(json);
 171         if (msg_ctx == NULL) {
 172                 return;
 173         }
 174
 175         /* Need to refetch the address each time as the destination server may
 176          * have disconnected and reconnected in the interim, in which case
 177          * messages may get lost, manifests in the auth_log tests
 178          */
 179         status = get_auth_event_server(msg_ctx, &auth_event_server);
 180         if (!NT_STATUS_IS_OK(status)) {
 181                 return;
 182         }
 183
 184         status = imessaging_send(msg_ctx, auth_event_server, MSG_AUTH_LOG,
 185                                  &json_blob);
 186
 187         /* If the server crashed, try to find it again */
 188         if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
 189                 status = get_auth_event_server(msg_ctx, &auth_event_server);
 190                 if (!NT_STATUS_IS_OK(status)) {
 191                         return;
 192                 }
 193                 imessaging_send(msg_ctx, auth_event_server, MSG_AUTH_LOG,
 194                                 &json_blob);
 195
 196         }
 197 }
 198
 199 /*
 200  * Write the json object to the debug logs.
 201  *
 202  */
 203 static void log_json( struct json_context *context,
 204                      const char *type, int debug_class, int debug_level)
 205 {
 206         char* json = NULL;
 207
 208         if( context->error) {
 209                 return;
 210         }
 211
 212         json = json_dumps( context->root, 0);
 213         if (json == NULL) {
 214                 DBG_ERR( "Unable to convert JSON object to string\n");
 215                 context->error = true;
 216                 return;
 217         }
 218
 219         DEBUGC( debug_class, debug_level, ( "JSON %s: %s\n", type, json));
 220
 221         if (json) {
 222                 free(json);
 223         }
 224
 225 }
 226
 227 /*
 228  * Create a new json logging context.
 229  *
 230  * Free with a call to free_json_context
 231  *
 232  */
 233 static struct json_context get_json_context( void) {
 234
 235         struct json_context context;
 236         context.error = false;
 237
 238         context.root = json_object();
 239         if (context.root == NULL) {
 240                 context.error = true;
 241                 DBG_ERR("Unable to create json_object\n");
 242         }
 243         return context;
 244 }
 245
 246 /*
 247  * free a previously created json_context
 248  *
 249  */
 250 static void free_json_context(struct json_context *context)
 251 {
 252         if (context->root) {
 253                 json_decref( context->root);
 254         }
 255 }
 256
 257 /*
 258  * Output a JSON pair with name name and integer value value
 259  *
 260  */
 261 static void add_int(struct json_context *context,
 262                     const char* name,
 263                     const int value)
 264 {
 265         int rc = 0;
 266
 267         if (context->error) {
 268                 return;
 269         }
 270
 271         rc = json_object_set_new( context->root, name, json_integer( value));
 272         if (rc) {
 273                 DBG_ERR("Unable to set name [%s] value [%d]\n", name, value);
 274                 context->error = true;
 275         }
 276
 277 }
 278
 279 /*
 280  * Output a JSON pair with name name and string value value
 281  *
 282  */
 283 static void add_string(struct json_context *context,
 284                        const char* name,
 285                        const char* value)
 286 {
 287         int rc = 0;
 288
 289         if (context->error) {
 290                 return;
 291         }
 292
 293         if (value) {
 294                 rc = json_object_set_new(context->root, name, json_string(value));
 295         } else {
 296                 rc = json_object_set_new(context->root, name, json_null());
 297         }
 298         if (rc) {
 299                 DBG_ERR("Unable to set name [%s] value [%s]\n", name, value);
 300                 context->error = true;
 301         }
 302 }
 303
 304
 305 /*
 306  * Output a JSON pair with name name and object value
 307  *
 308  */
 309 static void add_object(struct json_context *context,
 310                        const char* name,
 311                        struct json_context *value)
 312 {
 313         int rc = 0;
 314
 315         if (value->error) {
 316                 context->error = true;
 317         }
 318         if (context->error) {
 319                 return;
 320         }
 321         rc = json_object_set_new(context->root, name, value->root);
 322         if (rc) {
 323                 DBG_ERR("Unable to add object [%s]\n", name);
 324                 context->error = true;
 325         }
 326 }
 327
 328 /*
 329  * Output a version object
 330  *
 331  * "version":{"major":1,"minor":0}
 332  *
 333  */
 334 static void add_version( struct json_context *context, int major, int minor)
 335 {
 336         struct json_context version = get_json_context();
 337         add_int(&version, "major", major);
 338         add_int(&version, "minor", minor);
 339         add_object(context, "version", &version);
 340 }
 341
 342 /*
 343  * Output the current date and time as a timestamp in ISO 8601 format
 344  *
 345  * "timestamp":"2017-03-06T17:18:04.455081+1300"
 346  *
 347  */
 348 static void add_timestamp( struct json_context *context)
 349 {
 350         char buffer[40];        /* formatted time less usec and timezone */
 351         char timestamp[50];     /* the formatted ISO 8601 time stamp     */
 352         char tz[10];            /* formatted time zone                   */
 353         struct tm* tm_info;     /* current local time                    */
 354         struct timeval tv;      /* current system time                   */
 355         int r;                  /* response code from gettimeofday       */
 356
 357         if (context->error) {
 358                 return;
 359         }
 360
 361         r = gettimeofday(&tv, NULL);
 362         if (r) {
 363                 DBG_ERR("Unable to get time of day: (%d) %s\n",
 364                         errno,
 365                         strerror( errno));
 366                 context->error = true;
 367                 return;
 368         }
 369
 370         tm_info = localtime(&tv.tv_sec);
 371         if (tm_info == NULL) {
 372                 DBG_ERR("Unable to determine local time\n");
 373                 context->error = true;
 374                 return;
 375         }
 376
 377         strftime(buffer, sizeof(buffer)-1, "%Y-%m-%dT%T", tm_info);
 378         strftime(tz, sizeof(tz)-1, "%z", tm_info);
 379         snprintf(timestamp, sizeof(timestamp),"%s.%06ld%s",
 380                  buffer, tv.tv_usec, tz);
 381         add_string(context,"timestamp", timestamp);
 382 }
 383
 384
 385 /*
 386  * Output an address pair, with name name.
 387  *
 388  * "localAddress":"ipv6::::0"
 389  *
 390  */
 391 static void add_address(struct json_context *context,
 392                         const char *name,
 393                         const struct tsocket_address *address)
 394 {
 395         char *s = NULL;
 396         TALLOC_CTX *frame = talloc_stackframe();
 397
 398         if (context->error) {
 399                 return;
 400         }
 401
 402         s = tsocket_address_string(address, frame);
 403         add_string(context, name, s);
 404         talloc_free(frame);
 405
 406 }
 407
 408 /*
 409  * Output a SID with name name
 410  *
 411  * "sid":"S-1-5-18"
 412  *
 413  */
 414 static void add_sid(struct json_context *context,
 415                     const char *name,
 416                     const struct dom_sid *sid)
 417 {
 418         char sid_buf[DOM_SID_STR_BUFLEN];
 419
 420         if (context->error) {
 421                 return;
 422         }
 423
 424         dom_sid_string_buf(sid, sid_buf, sizeof(sid_buf));
 425         add_string(context, name, sid_buf);
 426 }
 427
 428 /*
 429  * Write a machine parsable json formatted authentication log entry.
 430  *
 431  * IF removing or changing the format/meaning of a field please update the
 432  *    major version number AUTH_MAJOR
 433  *
 434  * IF adding a new field please update the minor version number AUTH_MINOR
 435  *
 436  *  To process the resulting log lines from the commend line use jq to
 437  *  parse the json.
 438  *
 439  *  grep "JSON Authentication" log file |
 440  *  sed 's;^[^{]*;;' |
 441  * jq -rc  '"\(.timestamp)\t\(.Authentication.status)\t
 442  *           \(.Authentication.clientDomain)\t
 443  *           \(.Authentication.clientAccount)
 444  *           \t\(.Authentication.workstation)
 445  *           \t\(.Authentication.remoteAddress)
 446  *           \t\(.Authentication.localAddress)"'
 447  */
 448 static void log_authentication_event_json(
 449                         const struct auth_usersupplied_info *ui,
 450                         NTSTATUS status,
 451                         const char *domain_name,
 452                         const char *account_name,
 453                         const char *unix_username,
 454                         struct dom_sid *sid,
 455                         int debug_level)
 456 {
 457         struct json_context context = get_json_context();
 458         struct json_context authentication;
 459         char negotiate_flags[11];
 460
 461         add_timestamp(&context);
 462         add_string(&context, "type", AUTH_JSON_TYPE);
 463
 464         authentication = get_json_context();
 465         add_version(&authentication, AUTH_MAJOR, AUTH_MINOR);
 466         add_string(&authentication, "status", nt_errstr( status));
 467         add_address(&authentication, "localAddress", ui->local_host);
 468         add_address(&authentication, "remoteAddress", ui->remote_host);
 469         add_string(&authentication,
 470                    "serviceDescription",
 471                    ui->service_description);
 472         add_string(&authentication, "authDescription", ui->auth_description);
 473         add_string(&authentication, "clientDomain", ui->client.domain_name);
 474         add_string(&authentication, "clientAccount", ui->client.account_name);
 475         add_string(&authentication, "workstation", ui->workstation_name);
 476         add_string(&authentication, "becameAccount", account_name);
 477         add_string(&authentication, "becameDomain", domain_name);
 478         add_sid(&authentication, "becameSid", sid);
 479         add_string(&authentication, "mappedAccount", ui->mapped.account_name);
 480         add_string(&authentication, "mappedDomain", ui->mapped.domain_name);
 481         add_string(&authentication,
 482                    "netlogonComputer",
 483                    ui->netlogon_trust_account.computer_name);
 484         add_string(&authentication,
 485                    "netlogonTrustAccount",
 486                    ui->netlogon_trust_account.account_name);
 487         snprintf(negotiate_flags,
 488                  sizeof( negotiate_flags),
 489                  "0x%08X",
 490                  ui->netlogon_trust_account.negotiate_flags);
 491         add_string(&authentication, "netlogonNegotiateFlags", negotiate_flags);
 492         add_int(&authentication,
 493                 "netlogonSecureChannelType",
 494                 ui->netlogon_trust_account.secure_channel_type);
 495         add_sid(&authentication,
 496                 "netlogonTrustAccountSid",
 497                 ui->netlogon_trust_account.sid);
 498         add_string(&authentication, "passwordType", get_password_type( ui));
 499         add_object(&context,AUTH_JSON_TYPE, &authentication);
 500
 501         log_json(&context, AUTH_JSON_TYPE, DBGC_AUTH_AUDIT, debug_level);
 502         free_json_context(&context);
 503 }
 504
 505 /*
 506  * Log details of a successful authorization to a service,
 507  * in a machine parsable json format
 508  *
 509  * IF removing or changing the format/meaning of a field please update the
 510  *    major version number AUTHZ_MAJOR
 511  *
 512  * IF adding a new field please update the minor version number AUTHZ_MINOR
 513  *
 514  *  To process the resulting log lines from the commend line use jq to
 515  *  parse the json.
 516  *
 517  *  grep "JSON Authentication" log_file |\
 518  *  sed "s;^[^{]*;;" |\
 519  *  jq -rc '"\(.timestamp)\t
 520  *           \(.Authorization.domain)\t
 521  *           \(.Authorization.account)\t
 522  *           \(.Authorization.remoteAddress)"'
 523  *
 524  */
 525 static void log_successful_authz_event_json(
 526                                 const struct tsocket_address *remote,
 527                                 const struct tsocket_address *local,
 528                                 const char *service_description,
 529                                 const char *auth_type,
 530                                 const char *transport_protection,
 531                                 struct auth_session_info *session_info,
 532                                 int debug_level)
 533 {
 534         struct json_context context = get_json_context();
 535         struct json_context authorization;
 536         char account_flags[11];
 537
 538         //start_object(&context, NULL);
 539         add_timestamp(&context);
 540         add_string(&context, "type", AUTHZ_JSON_TYPE);
 541         authorization = get_json_context();
 542         add_version(&authorization, AUTHZ_MAJOR, AUTHZ_MINOR);
 543         add_address(&authorization, "localAddress", local);
 544         add_address(&authorization, "remoteAddress", remote);
 545         add_string(&authorization, "serviceDescription", service_description);
 546         add_string(&authorization, "authType", auth_type);
 547         add_string(&authorization, "domain", session_info->info->domain_name);
 548         add_string(&authorization, "account", session_info->info->account_name);
 549         add_sid(&authorization, "sid", &session_info->security_token->sids[0]);
 550         add_string(&authorization,
 551                    "logonServer",
 552                    session_info->info->logon_server);
 553         add_string(&authorization, "transportProtection", transport_protection);
 554
 555         snprintf(account_flags,
 556                  sizeof( account_flags),
 557                  "0x%08X",
 558                  session_info->info->acct_flags);
 559         add_string(&authorization, "accountFlags", account_flags);
 560         add_object(&context,AUTHZ_JSON_TYPE, &authorization);
 561
 562         log_json(&context,
 563                  AUTHZ_JSON_TYPE,
 564                  DBGC_AUTH_AUDIT,
 565                  debug_level);
 566         free_json_context(&context);
 567 }
 568
 569 #else
 570
 571 static void log_authentication_event_json(
 572                         const struct auth_usersupplied_info *ui,
 573                         NTSTATUS status,
 574                         const char *domain_name,
 575                         const char *account_name,
 576                         const char *unix_username,
 577                         struct dom_sid *sid,
 578                         int debug_level)
 579 {
 580         return;
 581 }
 582
 583 static void log_successful_authz_event_json(
 584                                 const struct tsocket_address *remote,
 585                                 const struct tsocket_address *local,
 586                                 const char *service_description,
 587                                 const char *auth_type,
 588                                 const char *transport_protection,
 589                                 struct auth_session_info *session_info,
 590                                 int debug_level)
 591 {
 592         return;
 593 }
 594
 595 #endif
 596
 597 /*
 598  * Determine the type of the password supplied for the
 599  * authorisation attempt.
 600  *
 601  */
 602 static const char* get_password_type(const struct auth_usersupplied_info *ui)
 603 {
 604
 605         const char *password_type = NULL;
 606
 607         if (ui->password_state == AUTH_PASSWORD_RESPONSE &&
 608             (ui->logon_parameters & MSV1_0_ALLOW_MSVCHAPV2) &&
 609             ui->password.response.nt.length == 24) {
 610                 password_type = "MSCHAPv2";
 611         } else if ((ui->logon_parameters & MSV1_0_CLEARTEXT_PASSWORD_SUPPLIED)
 612                    || (ui->password_state == AUTH_PASSWORD_PLAIN)) {
 613                 password_type = "Plaintext";
 614         } else if (ui->password_state == AUTH_PASSWORD_HASH) {
 615                 password_type = "Supplied-NT-Hash";
 616         } else if (ui->password_state == AUTH_PASSWORD_RESPONSE
 617                    && ui->password.response.nt.length > 24) {
 618                 password_type = "NTLMv2";
 619         } else if (ui->password_state == AUTH_PASSWORD_RESPONSE
 620                    && ui->password.response.nt.length == 24) {
 621                 password_type = "NTLMv1";
 622         } else if (ui->password_state == AUTH_PASSWORD_RESPONSE
 623                    && ui->password.response.lanman.length == 24) {
 624                 password_type = "LANMan";
 625         } else if (ui->password_state == AUTH_PASSWORD_RESPONSE
 626                    && ui->password.response.nt.length == 0
 627                    && ui->password.response.lanman.length == 0) {
 628                 password_type = "No-Password";
 629         }
 630         return password_type;
 631 }
 632
 633 /*
 634  * Write a human readable authentication log entry.
 635  *
 636  */
 637 static void log_authentication_event_human_readable(
 638                         const struct auth_usersupplied_info *ui,
 639                         NTSTATUS status,
 640                         const char *domain_name,
 641                         const char *account_name,
 642                         const char *unix_username,
 643                         struct dom_sid *sid,
 644                         int debug_level)
 645 {
 646         TALLOC_CTX *frame = NULL;
 647
 648         const char *ts = NULL;             /* formatted current time      */
 649         char *remote = NULL;               /* formatted remote host       */
 650         char *local = NULL;                /* formatted local host        */
 651         char *nl = NULL;                   /* NETLOGON details if present */
 652         char *trust_computer_name = NULL;
 653         char *trust_account_name = NULL;
 654         char *logon_line = NULL;
 655         const char *password_type = NULL;
 656
 657         frame = talloc_stackframe();
 658
 659         password_type = get_password_type( ui);
 660         /* Get the current time */
 661         ts = get_timestamp(frame);
 662
 663         /* Only log the NETLOGON details if they are present */
 664         if (ui->netlogon_trust_account.computer_name ||
 665             ui->netlogon_trust_account.account_name) {
 666                 trust_computer_name = log_escape(frame,
 667                         ui->netlogon_trust_account.computer_name);
 668                 trust_account_name  = log_escape(frame,
 669                         ui->netlogon_trust_account.account_name);
 670                 nl = talloc_asprintf(frame,
 671                         " NETLOGON computer [%s] trust account [%s]",
 672                         trust_computer_name, trust_account_name);
 673         }
 674
 675         remote = tsocket_address_string(ui->remote_host, frame);
 676         local  = tsocket_address_string(ui->local_host, frame);
 677
 678         if (NT_STATUS_IS_OK(status)) {
 679                 char sid_buf[DOM_SID_STR_BUFLEN];
 680
 681                 dom_sid_string_buf(sid, sid_buf, sizeof(sid_buf));
 682                 logon_line = talloc_asprintf(frame,
 683                                              " became [%s]\\[%s] [%s].",
 684                                              log_escape(frame, domain_name),
 685                                              log_escape(frame, account_name),
 686                                              sid_buf);
 687         } else {
 688                 logon_line = talloc_asprintf(
 689                                 frame,
 690                                 " mapped to [%s]\\[%s].",
 691                                 log_escape(frame, ui->mapped.domain_name),
 692                                 log_escape(frame, ui->mapped.account_name));
 693         }
 694
 695         DEBUGC( DBGC_AUTH_AUDIT, debug_level, (
 696                 "Auth: [%s,%s] user [%s]\\[%s]"
 697                 " at [%s] with [%s] status [%s]"
 698                 " workstation [%s] remote host [%s]"
 699                 "%s local host [%s]"
 700                 " %s\n",
 701                 ui->service_description,
 702                 ui->auth_description,
 703                 log_escape(frame, ui->client.domain_name),
 704                 log_escape(frame, ui->client.account_name),
 705                 ts,
 706                 password_type,
 707                 nt_errstr( status),
 708                 log_escape(frame, ui->workstation_name),
 709                 remote,
 710                 logon_line,
 711                 local,
 712                 nl ? nl : ""
 713                 ));
 714
 715         talloc_free(frame);
 716 }
 717
 718 /*
 719  * Log details of an authentication attempt.
 720  * Successful and unsuccessful attempts are logged.
 721  *
 722  * NOTE: msg_ctx and lp_ctx is optional, but when supplied allows streaming the
 723  * authentication events over the message bus.
 724  */
 725 void log_authentication_event( const struct auth_usersupplied_info *ui,
 726                               NTSTATUS status,
 727                               const char *domain_name,
 728                               const char *account_name,
 729                               const char *unix_username,
 730                               struct dom_sid *sid)
 731 {
 732         /* set the log level */
 733         int debug_level = AUTH_FAILURE_LEVEL;
 734
 735         if (NT_STATUS_IS_OK(status)) {
 736                 debug_level = AUTH_SUCCESS_LEVEL;
 737                 if (dom_sid_equal(sid, &global_sid_Anonymous)) {
 738                         debug_level = AUTH_ANONYMOUS_LEVEL;
 739                 }
 740         }
 741
 742         if (CHECK_DEBUGLVLC( DBGC_AUTH_AUDIT, debug_level)) {
 743                 log_authentication_event_human_readable(ui,
 744                                                         status,
 745                                                         domain_name,
 746                                                         account_name,
 747                                                         unix_username,
 748                                                         sid,
 749                                                         debug_level);
 750         }
 751         if (CHECK_DEBUGLVLC( DBGC_AUTH_AUDIT_JSON, debug_level)) {
 752                 log_authentication_event_json(ui,
 753                                               status,
 754                                               domain_name,
 755                                               account_name,
 756                                               unix_username,
 757                                               sid,
 758                                               debug_level);
 759         }
 760 }
 761
 762
 763
 764 /*
 765  * Log details of a successful authorization to a service,
 766  * in a human readable format.
 767  *
 768  */
 769 static void log_successful_authz_event_human_readable(
 770                                 const struct tsocket_address *remote,
 771                                 const struct tsocket_address *local,
 772                                 const char *service_description,
 773                                 const char *auth_type,
 774                                 const char *transport_protection,
 775                                 struct auth_session_info *session_info,
 776                                 int debug_level)
 777 {
 778         TALLOC_CTX *frame = NULL;
 779
 780         const char *ts = NULL;       /* formatted current time      */
 781         char *remote_str = NULL;     /* formatted remote host       */
 782         char *local_str = NULL;      /* formatted local host        */
 783         char sid_buf[DOM_SID_STR_BUFLEN];
 784
 785         frame = talloc_stackframe();
 786
 787         /* Get the current time */
 788         ts = get_timestamp(frame);
 789
 790         remote_str = tsocket_address_string(remote, frame);
 791         local_str  = tsocket_address_string(local, frame);
 792
 793         dom_sid_string_buf(&session_info->security_token->sids[0],
 794                            sid_buf,
 795                            sizeof(sid_buf));
 796
 797         DEBUGC( DBGC_AUTH_AUDIT, debug_level, (
 798                 "Successful AuthZ: [%s,%s] user [%s]\\[%s] [%s]"
 799                 " at [%s]"
 800                 " Remote host [%s]"
 801                 " local host [%s]\n",
 802                 service_description,
 803                 auth_type,
 804                 log_escape(frame, session_info->info->domain_name),
 805                 log_escape(frame, session_info->info->account_name),
 806                 sid_buf,
 807                 ts,
 808                 remote_str,
 809                 local_str));
 810
 811         talloc_free(frame);
 812 }
 813
 814 /*
 815  * Log details of a successful authorization to a service.
 816  *
 817  * Only successful authorizations are logged.  For clarity:
 818  * - NTLM bad passwords will be recorded by log_authentication_event
 819  * - Kerberos decrypt failures need to be logged in gensec_gssapi et al
 820  *
 821  * The service may later refuse authorization due to an ACL.
 822  *
 823  * NOTE: msg_ctx and lp_ctx is optional, but when supplied allows streaming the
 824  * authentication events over the message bus.
 825  */
 826 void log_successful_authz_event(const struct tsocket_address *remote,
 827                                 const struct tsocket_address *local,
 828                                 const char *service_description,
 829                                 const char *auth_type,
 830                                 const char *transport_protection,
 831                                 struct auth_session_info *session_info)
 832 {
 833         int debug_level = AUTHZ_SUCCESS_LEVEL;
 834
 835         /* set the log level */
 836         if (security_token_is_anonymous(session_info->security_token)) {
 837                 debug_level = AUTH_ANONYMOUS_LEVEL;
 838         }
 839
 840         if (CHECK_DEBUGLVLC( DBGC_AUTH_AUDIT, debug_level)) {
 841                 log_successful_authz_event_human_readable(remote,
 842                                                           local,
 843                                                           service_description,
 844                                                           auth_type,
 845                                                           transport_protection,
 846                                                           session_info,
 847                                                           debug_level);
 848         }
 849         if (CHECK_DEBUGLVLC( DBGC_AUTH_AUDIT_JSON, debug_level)) {
 850                 log_successful_authz_event_json(remote,
 851                                                 local,
 852                                                 service_description,
 853                                                 auth_type,
 854                                                 transport_protection,
 855                                                 session_info,
 856                                                 debug_level);
 857         }
 858 }