source3/rpc_server/eventlog/srv_eventlog_nt.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  RPC Pipe client / server routines
   4  *  Copyright (C) Marcin Krzysztof Porwit    2005,
   5  *  Copyright (C) Brian Moran                2005,
   6  *  Copyright (C) Gerald (Jerry) Carter      2005.
   7  *  Copyright (C) Guenther Deschner          2009.
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; either version 3 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  21  */
  22
  23 #include "includes.h"
  24 #include "system/passwd.h" /* uid_wrapper */
  25 #include "ntdomain.h"
  26 #include "../librpc/gen_ndr/srv_eventlog.h"
  27 #include "lib/eventlog/eventlog.h"
  28 #include "../libcli/security/security.h"
  29 #include "../librpc/gen_ndr/ndr_winreg_c.h"
  30 #include "rpc_client/cli_winreg_int.h"
  31 #include "rpc_client/cli_winreg.h"
  32 #include "smbd/smbd.h"
  33 #include "auth.h"
  34 #include "util_tdb.h"
  35
  36 #undef  DBGC_CLASS
  37 #define DBGC_CLASS DBGC_RPC_SRV
  38
  39 #define TOP_LEVEL_EVENTLOG_KEY "SYSTEM\\CurrentControlSet\\Services\\Eventlog"
  40
  41 typedef struct {
  42         char *logname;
  43         ELOG_TDB *etdb;
  44         uint32_t current_record;
  45         uint32_t num_records;
  46         uint32_t oldest_entry;
  47         uint32_t flags;
  48         uint32_t access_granted;
  49 } EVENTLOG_INFO;
  50
  51 /********************************************************************
  52  ********************************************************************/
  53
  54 static int eventlog_info_destructor(EVENTLOG_INFO *elog)
  55 {
  56         if (elog->etdb) {
  57                 elog_close_tdb(elog->etdb, false);
  58         }
  59         return 0;
  60 }
  61
  62 /********************************************************************
  63  ********************************************************************/
  64
  65 static EVENTLOG_INFO *find_eventlog_info_by_hnd( struct pipes_struct * p,
  66                                                 struct policy_handle * handle )
  67 {
  68         EVENTLOG_INFO *info;
  69
  70         if ( !find_policy_by_hnd( p, handle, (void **)(void *)&info ) ) {
  71                 DEBUG( 2,
  72                        ( "find_eventlog_info_by_hnd: eventlog not found.\n" ) );
  73                 return NULL;
  74         }
  75
  76         return info;
  77 }
  78
  79 /********************************************************************
  80 ********************************************************************/
  81
  82 static bool elog_check_access( EVENTLOG_INFO *info, const struct security_token *token )
  83 {
  84         char *tdbname = elog_tdbname(talloc_tos(), info->logname );
  85         struct security_descriptor *sec_desc;
  86         struct security_ace *ace;
  87         NTSTATUS status;
  88
  89         if ( !tdbname )
  90                 return False;
  91
  92         /* get the security descriptor for the file */
  93
  94         status = get_nt_acl_no_snum( info,
  95                         tdbname,
  96                         SECINFO_OWNER | SECINFO_GROUP | SECINFO_DACL,
  97                         &sec_desc);
  98         TALLOC_FREE( tdbname );
  99
 100         if (!NT_STATUS_IS_OK(status)) {
 101                 DEBUG(5,("elog_check_access: Unable to get NT ACL for %s: %s\n",
 102                         tdbname, nt_errstr(status)));
 103                 return False;
 104         }
 105
 106         ace = talloc_zero(sec_desc, struct security_ace);
 107         if (ace == NULL) {
 108                 TALLOC_FREE(sec_desc);
 109                 return false;
 110         }
 111
 112         ace->type               = SEC_ACE_TYPE_ACCESS_ALLOWED;
 113         ace->flags              = 0;
 114         ace->access_mask        = REG_KEY_ALL;
 115         ace->trustee            = global_sid_System;
 116
 117         status = security_descriptor_dacl_add(sec_desc, ace);
 118         if (!NT_STATUS_IS_OK(status)) {
 119                 TALLOC_FREE(sec_desc);
 120                 return false;
 121         }
 122
 123         /* root free pass */
 124
 125         if ( geteuid() == sec_initial_uid() ) {
 126                 DEBUG(5,("elog_check_access: running as root, using system token\n"));
 127                 token = get_system_token();
 128         }
 129
 130         /* run the check, try for the max allowed */
 131
 132         status = se_access_check( sec_desc, token, MAXIMUM_ALLOWED_ACCESS,
 133                 &info->access_granted);
 134
 135         TALLOC_FREE(sec_desc);
 136
 137         if (!NT_STATUS_IS_OK(status)) {
 138                 DEBUG(8,("elog_check_access: se_access_check() return %s\n",
 139                         nt_errstr(status)));
 140                 return False;
 141         }
 142
 143         /* we have to have READ permission for a successful open */
 144
 145         return ( info->access_granted & SEC_FILE_READ_DATA );
 146 }
 147
 148 /********************************************************************
 149  ********************************************************************/
 150
 151 static bool elog_validate_logname( const char *name )
 152 {
 153         int i;
 154         const char **elogs = lp_eventlog_list();
 155
 156         if (!elogs) {
 157                 return False;
 158         }
 159
 160         for ( i=0; elogs[i]; i++ ) {
 161                 if ( strequal( name, elogs[i] ) )
 162                         return True;
 163         }
 164
 165         return False;
 166 }
 167
 168 /********************************************************************
 169 ********************************************************************/
 170
 171 static bool get_num_records_hook( EVENTLOG_INFO * info )
 172 {
 173         int next_record;
 174         int oldest_record;
 175
 176         if ( !info->etdb ) {
 177                 DEBUG( 10, ( "No open tdb for %s\n", info->logname ) );
 178                 return False;
 179         }
 180
 181         /* lock the tdb since we have to get 2 records */
 182
 183         tdb_lock_bystring_with_timeout( ELOG_TDB_CTX(info->etdb), EVT_NEXT_RECORD, 1 );
 184         next_record = tdb_fetch_int32( ELOG_TDB_CTX(info->etdb), EVT_NEXT_RECORD);
 185         oldest_record = tdb_fetch_int32( ELOG_TDB_CTX(info->etdb), EVT_OLDEST_ENTRY);
 186         tdb_unlock_bystring( ELOG_TDB_CTX(info->etdb), EVT_NEXT_RECORD);
 187
 188         DEBUG( 8,
 189                ( "Oldest Record %d; Next Record %d\n", oldest_record,
 190                  next_record ) );
 191
 192         info->num_records = ( next_record - oldest_record );
 193         info->oldest_entry = oldest_record;
 194
 195         return True;
 196 }
 197
 198 /********************************************************************
 199  ********************************************************************/
 200
 201 static bool get_oldest_entry_hook( EVENTLOG_INFO * info )
 202 {
 203         /* it's the same thing */
 204         return get_num_records_hook( info );
 205 }
 206
 207 /********************************************************************
 208  ********************************************************************/
 209
 210 static NTSTATUS elog_open( struct pipes_struct * p, const char *logname, struct policy_handle *hnd )
 211 {
 212         EVENTLOG_INFO *elog;
 213
 214         /* first thing is to validate the eventlog name */
 215
 216         if ( !elog_validate_logname( logname ) )
 217                 return NT_STATUS_OBJECT_PATH_INVALID;
 218
 219         if ( !(elog = talloc_zero( NULL, EVENTLOG_INFO )) )
 220                 return NT_STATUS_NO_MEMORY;
 221         talloc_set_destructor(elog, eventlog_info_destructor);
 222
 223         elog->logname = talloc_strdup( elog, logname );
 224
 225         /* Open the tdb first (so that we can create any new tdbs if necessary).
 226            We have to do this as root and then use an internal access check
 227            on the file permissions since you can only have a tdb open once
 228            in a single process */
 229
 230         become_root();
 231         elog->etdb = elog_open_tdb( elog->logname, False, False );
 232         unbecome_root();
 233
 234         if ( !elog->etdb ) {
 235                 /* according to MSDN, if the logfile cannot be found, we should
 236                   default to the "Application" log */
 237
 238                 if ( !strequal( logname, ELOG_APPL ) ) {
 239
 240                         TALLOC_FREE( elog->logname );
 241
 242                         elog->logname = talloc_strdup( elog, ELOG_APPL );
 243
 244                         /* do the access check */
 245                         if ( !elog_check_access( elog, p->session_info->security_token ) ) {
 246                                 TALLOC_FREE( elog );
 247                                 return NT_STATUS_ACCESS_DENIED;
 248                         }
 249
 250                         become_root();
 251                         elog->etdb = elog_open_tdb( elog->logname, False, False );
 252                         unbecome_root();
 253                 }
 254
 255                 if ( !elog->etdb ) {
 256                         TALLOC_FREE( elog );
 257                         return NT_STATUS_ACCESS_DENIED; /* ??? */
 258                 }
 259         }
 260
 261         /* now do the access check.  Close the tdb if we fail here */
 262
 263         if ( !elog_check_access( elog, p->session_info->security_token ) ) {
 264                 TALLOC_FREE( elog );
 265                 return NT_STATUS_ACCESS_DENIED;
 266         }
 267
 268         /* create the policy handle */
 269
 270         if ( !create_policy_hnd( p, hnd, elog ) ) {
 271                 TALLOC_FREE(elog);
 272                 return NT_STATUS_NO_MEMORY;
 273         }
 274
 275         /* set the initial current_record pointer */
 276
 277         if ( !get_oldest_entry_hook( elog ) ) {
 278                 DEBUG(3,("elog_open: Successfully opened eventlog but can't "
 279                         "get any information on internal records!\n"));
 280         }
 281
 282         elog->current_record = elog->oldest_entry;
 283
 284         return NT_STATUS_OK;
 285 }
 286
 287 /********************************************************************
 288  ********************************************************************/
 289
 290 static NTSTATUS elog_close( struct pipes_struct *p, struct policy_handle *hnd )
 291 {
 292         if ( !( close_policy_hnd( p, hnd ) ) ) {
 293                 return NT_STATUS_INVALID_HANDLE;
 294         }
 295
 296         return NT_STATUS_OK;
 297 }
 298
 299 /*******************************************************************
 300  *******************************************************************/
 301
 302 static int elog_size( EVENTLOG_INFO *info )
 303 {
 304         if ( !info || !info->etdb ) {
 305                 DEBUG(0,("elog_size: Invalid info* structure!\n"));
 306                 return 0;
 307         }
 308
 309         return elog_tdb_size( ELOG_TDB_CTX(info->etdb), NULL, NULL );
 310 }
 311
 312 /********************************************************************
 313  note that this can only be called AFTER the table is constructed,
 314  since it uses the table to find the tdb handle
 315  ********************************************************************/
 316
 317 static bool sync_eventlog_params(TALLOC_CTX *mem_ctx,
 318                                  struct messaging_context *msg_ctx,
 319                                  EVENTLOG_INFO *info)
 320 {
 321         struct dcerpc_binding_handle *h = NULL;
 322         uint32_t access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 323         struct policy_handle hive_hnd, key_hnd;
 324         uint32_t uiMaxSize = 0;
 325         uint32_t uiRetention = 0;
 326         char *path = NULL;
 327         NTSTATUS status;
 328         WERROR wresult = WERR_OK;
 329         char *elogname = info->logname;
 330         TALLOC_CTX *ctx;
 331         bool ret = false;
 332
 333         ctx = talloc_stackframe();
 334         if (ctx == NULL) {
 335                 return false;
 336         }
 337
 338         DEBUG( 4, ( "sync_eventlog_params with %s\n", elogname ) );
 339
 340         if ( !info->etdb ) {
 341                 DEBUG( 4, ( "No open tdb! (%s)\n", info->logname ) );
 342                 goto done;
 343         }
 344         /* set resonable defaults.  512Kb on size and 1 week on time */
 345
 346         uiMaxSize = 0x80000;
 347         uiRetention = 604800;
 348
 349         /* the general idea is to internally open the registry
 350            key and retrieve the values.  That way we can continue
 351            to use the same fetch/store api that we use in
 352            srv_reg_nt.c */
 353         path = talloc_asprintf(ctx, "%s\\%s", TOP_LEVEL_EVENTLOG_KEY, elogname);
 354         if (!path) {
 355                 goto done;
 356         }
 357
 358         status = dcerpc_winreg_int_hklm_openkey(ctx,
 359                                                 get_session_info_system(),
 360                                                 msg_ctx,
 361                                                 &h,
 362                                                 path,
 363                                                 false,
 364                                                 access_mask,
 365                                                 &hive_hnd,
 366                                                 &key_hnd,
 367                                                 &wresult);
 368         if (!NT_STATUS_IS_OK(status)) {
 369                 DEBUG(4,("sync_eventlog_params: Failed to open key [%s] (%s)\n",
 370                          path, nt_errstr(status)));
 371                 goto done;
 372         }
 373         if ( !W_ERROR_IS_OK( wresult ) ) {
 374                 DEBUG( 4,
 375                        ( "sync_eventlog_params: Failed to open key [%s] (%s)\n",
 376                          path, win_errstr( wresult ) ) );
 377                 goto done;
 378         }
 379
 380         status = dcerpc_winreg_query_dword(ctx,
 381                                            h,
 382                                            &key_hnd,
 383                                            "Retention",
 384                                            &uiRetention,
 385                                            &wresult);
 386         if (!NT_STATUS_IS_OK(status)) {
 387                 DEBUG(4, ("Failed to query value \"Retention\": %s\n",
 388                           nt_errstr(status)));
 389                 goto done;
 390         }
 391         if (!W_ERROR_IS_OK(wresult)) {
 392                 DEBUG(4, ("Failed to query value \"Retention\": %s\n",
 393                           win_errstr(wresult)));
 394                 goto done;
 395         }
 396
 397         status = dcerpc_winreg_query_dword(ctx,
 398                                            h,
 399                                            &key_hnd,
 400                                            "MaxSize",
 401                                            &uiMaxSize,
 402                                            &wresult);
 403         if (!NT_STATUS_IS_OK(status)) {
 404                 DEBUG(4, ("Failed to query value \"Retention\": %s\n",
 405                           nt_errstr(status)));
 406                 goto done;
 407         }
 408         if (!W_ERROR_IS_OK(wresult)) {
 409                 DEBUG(4, ("Failed to query value \"MaxSize\": %s\n",
 410                           win_errstr(wresult)));
 411                 goto done;
 412         }
 413
 414         tdb_store_int32( ELOG_TDB_CTX(info->etdb), EVT_MAXSIZE, uiMaxSize );
 415         tdb_store_int32( ELOG_TDB_CTX(info->etdb), EVT_RETENTION, uiRetention );
 416
 417         ret = true;
 418
 419 done:
 420         if (h != NULL) {
 421                 WERROR ignore;
 422
 423                 if (is_valid_policy_hnd(&key_hnd)) {
 424                         dcerpc_winreg_CloseKey(h, ctx, &key_hnd, &ignore);
 425                 }
 426                 if (is_valid_policy_hnd(&hive_hnd)) {
 427                         dcerpc_winreg_CloseKey(h, ctx, &hive_hnd, &ignore);
 428                 }
 429         }
 430
 431         TALLOC_FREE(ctx);
 432         return ret;
 433 }
 434
 435 /********************************************************************
 436  _eventlog_OpenEventLogW
 437  ********************************************************************/
 438
 439 NTSTATUS _eventlog_OpenEventLogW(struct pipes_struct *p,
 440                                  struct eventlog_OpenEventLogW *r)
 441 {
 442         EVENTLOG_INFO *info;
 443         NTSTATUS result;
 444
 445         DEBUG( 10,("_eventlog_OpenEventLogW: Server [%s], Log [%s]\n",
 446                 r->in.servername->string, r->in.logname->string ));
 447
 448         /* according to MSDN, if the logfile cannot be found, we should
 449           default to the "Application" log */
 450
 451         if ( !NT_STATUS_IS_OK( result = elog_open( p, r->in.logname->string, r->out.handle )) )
 452                 return result;
 453
 454         if ( !(info = find_eventlog_info_by_hnd( p, r->out.handle )) ) {
 455                 DEBUG(0,("_eventlog_OpenEventLogW: eventlog (%s) opened but unable to find handle!\n",
 456                         r->in.logname->string ));
 457                 elog_close( p, r->out.handle );
 458                 return NT_STATUS_INVALID_HANDLE;
 459         }
 460
 461         DEBUG(10,("_eventlog_OpenEventLogW: Size [%d]\n", elog_size( info )));
 462
 463         if (!sync_eventlog_params(p->mem_ctx,
 464                                   p->msg_ctx,
 465                                   info)) {
 466                 elog_close(p, r->out.handle);
 467                 return NT_STATUS_EVENTLOG_FILE_CORRUPT;
 468         }
 469         prune_eventlog( ELOG_TDB_CTX(info->etdb) );
 470
 471         return NT_STATUS_OK;
 472 }
 473
 474 /********************************************************************
 475  _eventlog_ClearEventLogW
 476  This call still needs some work
 477  ********************************************************************/
 478 /** The windows client seems to be doing something funny with the file name
 479    A call like
 480       ClearEventLog(handle, "backup_file")
 481    on the client side will result in the backup file name looking like this on the
 482    server side:
 483       \??\${CWD of client}\backup_file
 484    If an absolute path gets specified, such as
 485       ClearEventLog(handle, "C:\\temp\\backup_file")
 486    then it is still mangled by the client into this:
 487       \??\C:\temp\backup_file
 488    when it is on the wire.
 489    I'm not sure where the \?? is coming from, or why the ${CWD} of the client process
 490    would be added in given that the backup file gets written on the server side. */
 491
 492 NTSTATUS _eventlog_ClearEventLogW(struct pipes_struct *p,
 493                                   struct eventlog_ClearEventLogW *r)
 494 {
 495         EVENTLOG_INFO *info = find_eventlog_info_by_hnd( p, r->in.handle );
 496
 497         if ( !info )
 498                 return NT_STATUS_INVALID_HANDLE;
 499
 500         if (r->in.backupfile && r->in.backupfile->string) {
 501
 502                 DEBUG(8,( "_eventlog_ClearEventLogW: Using [%s] as the backup "
 503                         "file name for log [%s].",
 504                          r->in.backupfile->string, info->logname ) );
 505         }
 506
 507         /* check for WRITE access to the file */
 508
 509         if ( !(info->access_granted & SEC_FILE_WRITE_DATA) )
 510                 return NT_STATUS_ACCESS_DENIED;
 511
 512         /* Force a close and reopen */
 513
 514         elog_close_tdb( info->etdb, True );
 515         become_root();
 516         info->etdb = elog_open_tdb( info->logname, True, False );
 517         unbecome_root();
 518
 519         if ( !info->etdb )
 520                 return NT_STATUS_ACCESS_DENIED;
 521
 522         return NT_STATUS_OK;
 523 }
 524
 525 /********************************************************************
 526  _eventlog_CloseEventLog
 527  ********************************************************************/
 528
 529 NTSTATUS _eventlog_CloseEventLog(struct pipes_struct * p,
 530                                  struct eventlog_CloseEventLog *r)
 531 {
 532         NTSTATUS status;
 533
 534         status = elog_close( p, r->in.handle );
 535         if (!NT_STATUS_IS_OK(status)) {
 536                 return status;
 537         }
 538
 539         ZERO_STRUCTP(r->out.handle);
 540
 541         return NT_STATUS_OK;
 542 }
 543
 544 /********************************************************************
 545  _eventlog_ReadEventLogW
 546  ********************************************************************/
 547
 548 NTSTATUS _eventlog_ReadEventLogW(struct pipes_struct *p,
 549                                  struct eventlog_ReadEventLogW *r)
 550 {
 551         EVENTLOG_INFO *info = find_eventlog_info_by_hnd( p, r->in.handle );
 552         uint32_t num_records_read = 0;
 553         int bytes_left, record_number;
 554         uint32_t elog_read_type, elog_read_dir;
 555
 556         if (!info) {
 557                 return NT_STATUS_INVALID_HANDLE;
 558         }
 559
 560         info->flags     = r->in.flags;
 561         bytes_left      = r->in.number_of_bytes;
 562
 563         if (!info->etdb) {
 564                 return NT_STATUS_ACCESS_DENIED;
 565         }
 566
 567         /* check for valid flags.  Can't use the sequential and seek flags together */
 568
 569         elog_read_type = r->in.flags & (EVENTLOG_SEQUENTIAL_READ|EVENTLOG_SEEK_READ);
 570         elog_read_dir  = r->in.flags & (EVENTLOG_FORWARDS_READ|EVENTLOG_BACKWARDS_READ);
 571
 572         if (r->in.flags == 0 ||
 573             elog_read_type == (EVENTLOG_SEQUENTIAL_READ|EVENTLOG_SEEK_READ) ||
 574             elog_read_dir == (EVENTLOG_FORWARDS_READ|EVENTLOG_BACKWARDS_READ))
 575         {
 576                 DEBUG(3,("_eventlog_ReadEventLogW: "
 577                         "Invalid flags [0x%08x] for ReadEventLog\n",
 578                         r->in.flags));
 579                 return NT_STATUS_INVALID_PARAMETER;
 580         }
 581
 582         /* a sequential read should ignore the offset */
 583
 584         if (elog_read_type & EVENTLOG_SEQUENTIAL_READ) {
 585                 record_number = info->current_record;
 586         } else {
 587                 record_number = r->in.offset;
 588         }
 589
 590         if (r->in.number_of_bytes == 0) {
 591                 struct EVENTLOGRECORD *e;
 592                 e = evlog_pull_record(p->mem_ctx, ELOG_TDB_CTX(info->etdb),
 593                                       record_number);
 594                 if (!e) {
 595                         return NT_STATUS_END_OF_FILE;
 596                 }
 597                 *r->out.real_size = e->Length;
 598                 return NT_STATUS_BUFFER_TOO_SMALL;
 599         }
 600
 601         while (bytes_left > 0) {
 602
 603                 DATA_BLOB blob;
 604                 enum ndr_err_code ndr_err;
 605                 struct EVENTLOGRECORD *e;
 606
 607                 e = evlog_pull_record(p->mem_ctx, ELOG_TDB_CTX(info->etdb),
 608                                       record_number);
 609                 if (!e) {
 610                         break;
 611                 }
 612
 613                 ndr_err = ndr_push_struct_blob(&blob, p->mem_ctx, e,
 614                               (ndr_push_flags_fn_t)ndr_push_EVENTLOGRECORD);
 615                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 616                         return ndr_map_error2ntstatus(ndr_err);
 617                 }
 618
 619                 if (DEBUGLEVEL >= 10) {
 620                         NDR_PRINT_DEBUG(EVENTLOGRECORD, e);
 621                 }
 622
 623                 if (blob.length > r->in.number_of_bytes) {
 624                         *r->out.real_size = blob.length;
 625                         return NT_STATUS_BUFFER_TOO_SMALL;
 626                 }
 627
 628                 if (*r->out.sent_size + blob.length > r->in.number_of_bytes) {
 629                         break;
 630                 }
 631
 632                 bytes_left -= blob.length;
 633
 634                 if (info->flags & EVENTLOG_FORWARDS_READ) {
 635                         record_number++;
 636                 } else {
 637                         record_number--;
 638                 }
 639
 640                 /* update the eventlog record pointer */
 641
 642                 info->current_record = record_number;
 643
 644                 memcpy(&r->out.data[*(r->out.sent_size)],
 645                        blob.data, blob.length);
 646                 *(r->out.sent_size) += blob.length;
 647
 648                 num_records_read++;
 649         }
 650
 651         if (r->in.offset == 0 && record_number == 0 && *r->out.sent_size == 0) {
 652                 return NT_STATUS_END_OF_FILE;
 653         }
 654
 655         return NT_STATUS_OK;
 656 }
 657
 658 /********************************************************************
 659  _eventlog_GetOldestRecord
 660  ********************************************************************/
 661
 662 NTSTATUS _eventlog_GetOldestRecord(struct pipes_struct *p,
 663                                    struct eventlog_GetOldestRecord *r)
 664 {
 665         EVENTLOG_INFO *info = find_eventlog_info_by_hnd( p, r->in.handle );
 666
 667         if (info == NULL) {
 668                 return NT_STATUS_INVALID_HANDLE;
 669         }
 670
 671         if ( !( get_oldest_entry_hook( info ) ) )
 672                 return NT_STATUS_ACCESS_DENIED;
 673
 674         *r->out.oldest_entry = info->oldest_entry;
 675
 676         return NT_STATUS_OK;
 677 }
 678
 679 /********************************************************************
 680 _eventlog_GetNumRecords
 681  ********************************************************************/
 682
 683 NTSTATUS _eventlog_GetNumRecords(struct pipes_struct *p,
 684                                  struct eventlog_GetNumRecords *r)
 685 {
 686         EVENTLOG_INFO *info = find_eventlog_info_by_hnd( p, r->in.handle );
 687
 688         if (info == NULL) {
 689                 return NT_STATUS_INVALID_HANDLE;
 690         }
 691
 692         if ( !( get_num_records_hook( info ) ) )
 693                 return NT_STATUS_ACCESS_DENIED;
 694
 695         *r->out.number = info->num_records;
 696
 697         return NT_STATUS_OK;
 698 }
 699
 700 NTSTATUS _eventlog_BackupEventLogW(struct pipes_struct *p, struct eventlog_BackupEventLogW *r)
 701 {
 702         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
 703         return NT_STATUS_NOT_IMPLEMENTED;
 704 }
 705
 706 /********************************************************************
 707 _eventlog_GetLogInformation
 708  ********************************************************************/
 709
 710 NTSTATUS _eventlog_GetLogInformation(struct pipes_struct *p,
 711                                      struct eventlog_GetLogInformation *r)
 712 {
 713         EVENTLOG_INFO *info = find_eventlog_info_by_hnd(p, r->in.handle);
 714         struct EVENTLOG_FULL_INFORMATION f;
 715         enum ndr_err_code ndr_err;
 716         DATA_BLOB blob;
 717
 718         if (!info) {
 719                 return NT_STATUS_INVALID_HANDLE;
 720         }
 721
 722         if (r->in.level != 0) {
 723                 return NT_STATUS_INVALID_LEVEL;
 724         }
 725
 726         *r->out.bytes_needed = 4;
 727
 728         if (r->in.buf_size < 4) {
 729                 return NT_STATUS_BUFFER_TOO_SMALL;
 730         }
 731
 732         /* FIXME: this should be retrieved from the handle */
 733         f.full = false;
 734
 735         ndr_err = ndr_push_struct_blob(&blob, p->mem_ctx, &f,
 736                       (ndr_push_flags_fn_t)ndr_push_EVENTLOG_FULL_INFORMATION);
 737         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 738                 return ndr_map_error2ntstatus(ndr_err);
 739         }
 740
 741         if (DEBUGLEVEL >= 10) {
 742                 NDR_PRINT_DEBUG(EVENTLOG_FULL_INFORMATION, &f);
 743         }
 744
 745         memcpy(r->out.buffer, blob.data, 4);
 746
 747         return NT_STATUS_OK;
 748 }
 749
 750 /********************************************************************
 751 _eventlog_FlushEventLog
 752  ********************************************************************/
 753
 754 NTSTATUS _eventlog_FlushEventLog(struct pipes_struct *p,
 755                                  struct eventlog_FlushEventLog *r)
 756 {
 757         EVENTLOG_INFO *info = find_eventlog_info_by_hnd(p, r->in.handle);
 758         if (!info) {
 759                 return NT_STATUS_INVALID_HANDLE;
 760         }
 761
 762         return NT_STATUS_ACCESS_DENIED;
 763 }
 764
 765 /********************************************************************
 766  ********************************************************************/
 767
 768 static NTSTATUS evlog_report_to_record(TALLOC_CTX *mem_ctx,
 769                                        const struct eventlog_ReportEventW *r,
 770                                        const char *logname,
 771                                        struct EVENTLOGRECORD *e)
 772 {
 773         uint32_t i;
 774         ZERO_STRUCTP(e);
 775
 776         e->TimeGenerated        = r->in.timestamp;
 777         e->TimeWritten          = time(NULL);
 778         e->EventID              = r->in.event_id;
 779         e->EventType            = r->in.event_type;
 780         e->NumStrings           = r->in.num_of_strings;
 781         e->EventCategory        = r->in.event_category;
 782         e->ReservedFlags        = r->in.flags;
 783         e->DataLength           = r->in.data_size;
 784         e->SourceName           = talloc_strdup(mem_ctx, logname);
 785         NT_STATUS_HAVE_NO_MEMORY(e->SourceName);
 786         if (r->in.servername->string) {
 787                 e->Computername = r->in.servername->string;
 788         } else {
 789                 e->Computername = talloc_strdup(mem_ctx, "");
 790                 NT_STATUS_HAVE_NO_MEMORY(e->Computername);
 791         }
 792         if (r->in.user_sid) {
 793                 e->UserSid      = *r->in.user_sid;
 794         }
 795         e->Strings              = talloc_array(mem_ctx, const char *, e->NumStrings);
 796         NT_STATUS_HAVE_NO_MEMORY(e->Strings);
 797
 798         for (i=0; i < e->NumStrings; i++) {
 799                 e->Strings[i] = talloc_strdup(e->Strings,
 800                                               r->in.strings[i]->string);
 801                 NT_STATUS_HAVE_NO_MEMORY(e->Strings[i]);
 802         }
 803         e->Data                 = r->in.data;
 804
 805         return NT_STATUS_OK;
 806 }
 807
 808 /********************************************************************
 809 _eventlog_ReportEventW
 810  ********************************************************************/
 811
 812 NTSTATUS _eventlog_ReportEventW(struct pipes_struct *p,
 813                                 struct eventlog_ReportEventW *r)
 814 {
 815         NTSTATUS status;
 816         struct EVENTLOGRECORD record;
 817
 818         EVENTLOG_INFO *info = find_eventlog_info_by_hnd(p, r->in.handle);
 819         if (!info) {
 820                 return NT_STATUS_INVALID_HANDLE;
 821         }
 822
 823         status = evlog_report_to_record(p->mem_ctx, r, info->logname, &record);
 824         if (!NT_STATUS_IS_OK(status)) {
 825                 return status;
 826         }
 827
 828         status = evlog_push_record(p->mem_ctx,
 829                                    ELOG_TDB_CTX(info->etdb),
 830                                    &record,
 831                                    r->out.record_number);
 832         if (!NT_STATUS_IS_OK(status)) {
 833                 return status;
 834         }
 835
 836         return NT_STATUS_OK;
 837 }
 838
 839 /********************************************************************
 840  ********************************************************************/
 841
 842 NTSTATUS _eventlog_DeregisterEventSource(struct pipes_struct *p,
 843                                          struct eventlog_DeregisterEventSource *r)
 844 {
 845         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
 846         return NT_STATUS_NOT_IMPLEMENTED;
 847 }
 848
 849 NTSTATUS _eventlog_ChangeNotify(struct pipes_struct *p,
 850                                 struct eventlog_ChangeNotify *r)
 851 {
 852         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
 853         return NT_STATUS_NOT_IMPLEMENTED;
 854 }
 855
 856 NTSTATUS _eventlog_RegisterEventSourceW(struct pipes_struct *p,
 857                                         struct eventlog_RegisterEventSourceW *r)
 858 {
 859         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
 860         return NT_STATUS_NOT_IMPLEMENTED;
 861 }
 862
 863 NTSTATUS _eventlog_OpenBackupEventLogW(struct pipes_struct *p,
 864                                        struct eventlog_OpenBackupEventLogW *r)
 865 {
 866         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
 867         return NT_STATUS_NOT_IMPLEMENTED;
 868 }
 869
 870 NTSTATUS _eventlog_ClearEventLogA(struct pipes_struct *p,
 871                                   struct eventlog_ClearEventLogA *r)
 872 {
 873         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
 874         return NT_STATUS_NOT_IMPLEMENTED;
 875 }
 876
 877 NTSTATUS _eventlog_BackupEventLogA(struct pipes_struct *p,
 878                                    struct eventlog_BackupEventLogA *r)
 879 {
 880         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
 881         return NT_STATUS_NOT_IMPLEMENTED;
 882 }
 883
 884 NTSTATUS _eventlog_OpenEventLogA(struct pipes_struct *p,
 885                                  struct eventlog_OpenEventLogA *r)
 886 {
 887         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
 888         return NT_STATUS_NOT_IMPLEMENTED;
 889 }
 890
 891 NTSTATUS _eventlog_RegisterEventSourceA(struct pipes_struct *p,
 892                                         struct eventlog_RegisterEventSourceA *r)
 893 {
 894         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
 895         return NT_STATUS_NOT_IMPLEMENTED;
 896 }
 897
 898 NTSTATUS _eventlog_OpenBackupEventLogA(struct pipes_struct *p,
 899                                        struct eventlog_OpenBackupEventLogA *r)
 900 {
 901         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
 902         return NT_STATUS_NOT_IMPLEMENTED;
 903 }
 904
 905 NTSTATUS _eventlog_ReadEventLogA(struct pipes_struct *p,
 906                                  struct eventlog_ReadEventLogA *r)
 907 {
 908         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
 909         return NT_STATUS_NOT_IMPLEMENTED;
 910 }
 911
 912 NTSTATUS _eventlog_ReportEventA(struct pipes_struct *p,
 913                                 struct eventlog_ReportEventA *r)
 914 {
 915         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
 916         return NT_STATUS_NOT_IMPLEMENTED;
 917 }
 918
 919 NTSTATUS _eventlog_RegisterClusterSvc(struct pipes_struct *p,
 920                                       struct eventlog_RegisterClusterSvc *r)
 921 {
 922         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
 923         return NT_STATUS_NOT_IMPLEMENTED;
 924 }
 925
 926 NTSTATUS _eventlog_DeregisterClusterSvc(struct pipes_struct *p,
 927                                         struct eventlog_DeregisterClusterSvc *r)
 928 {
 929         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
 930         return NT_STATUS_NOT_IMPLEMENTED;
 931 }
 932
 933 NTSTATUS _eventlog_WriteClusterEvents(struct pipes_struct *p,
 934                                       struct eventlog_WriteClusterEvents *r)
 935 {
 936         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
 937         return NT_STATUS_NOT_IMPLEMENTED;
 938 }
 939
 940 NTSTATUS _eventlog_ReportEventAndSourceW(struct pipes_struct *p,
 941                                          struct eventlog_ReportEventAndSourceW *r)
 942 {
 943         p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
 944         return NT_STATUS_NOT_IMPLEMENTED;
 945 }