source3/registry/reg_perfcount.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  Virtual Windows Registry Layer
   4  *
   5  *  Copyright (C) Marcin Krzysztof Porwit    2005,
   6  *  Copyright (C) Gerald (Jerry) Carter      2005.
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 3 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22
  23 #include "includes.h"
  24
  25 #undef DBGC_CLASS
  26 #define DBGC_CLASS DBGC_RPC_SRV
  27
  28 #define PERFCOUNT_MAX_LEN 256
  29
  30 #define PERFCOUNTDIR    "perfmon"
  31 #define NAMES_DB        "names.tdb"
  32 #define DATA_DB         "data.tdb"
  33
  34 PERF_OBJECT_TYPE *_reg_perfcount_find_obj(PERF_DATA_BLOCK *block, int objind);
  35
  36 /*********************************************************************
  37 *********************************************************************/
  38
  39 static char* counters_directory( const char *dbname )
  40 {
  41         static pstring fname;
  42         fstring path;
  43
  44         if ( !dbname )
  45                 return NULL;
  46
  47         fstr_sprintf( path, "%s/%s", PERFCOUNTDIR, dbname );
  48
  49         pstrcpy( fname, lock_path( path ) );
  50
  51         return fname;
  52 }
  53
  54 /*********************************************************************
  55 *********************************************************************/
  56
  57 void perfcount_init_keys( void )
  58 {
  59         char *p = lock_path(PERFCOUNTDIR);
  60
  61         /* no registry keys; just create the perfmon directory */
  62
  63         if ( !directory_exist( p, NULL ) )
  64                 mkdir( p, 0755 );
  65
  66         return;
  67 }
  68
  69 /*********************************************************************
  70 *********************************************************************/
  71
  72 uint32 reg_perfcount_get_base_index(void)
  73 {
  74         const char *fname = counters_directory( NAMES_DB );
  75         TDB_CONTEXT *names;
  76         TDB_DATA kbuf, dbuf;
  77         char key[] = "1";
  78         uint32 retval = 0;
  79         char buf[PERFCOUNT_MAX_LEN];
  80
  81         names = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDONLY, 0444);
  82
  83         if ( !names ) {
  84                 DEBUG(1, ("reg_perfcount_get_base_index: unable to open [%s].\n", fname));
  85                 return 0;
  86         }
  87         /* needs to read the value of key "1" from the counter_names.tdb file, as that is
  88            where the total number of counters is stored. We're assuming no holes in the
  89            enumeration.
  90            The format for the counter_names.tdb file is:
  91            key        value
  92            1          num_counters
  93            2          perf_counter1
  94            3          perf_counter1_help
  95            4          perf_counter2
  96            5          perf_counter2_help
  97            even_num   perf_counter<even_num>
  98            even_num+1 perf_counter<even_num>_help
  99            and so on.
 100            So last_counter becomes num_counters*2, and last_help will be last_counter+1 */
 101         kbuf = string_tdb_data(key);
 102         dbuf = tdb_fetch(names, kbuf);
 103         if(dbuf.dptr == NULL)
 104         {
 105                 DEBUG(1, ("reg_perfcount_get_base_index: failed to find key \'1\' in [%s].\n", fname));
 106                 tdb_close(names);
 107                 return 0;
 108         }
 109         else
 110         {
 111                 tdb_close(names);
 112                 memset(buf, 0, PERFCOUNT_MAX_LEN);
 113                 memcpy(buf, dbuf.dptr, dbuf.dsize);
 114                 retval = (uint32)atoi(buf);
 115                 SAFE_FREE(dbuf.dptr);
 116                 return retval;
 117         }
 118         return 0;
 119 }
 120
 121 /*********************************************************************
 122 *********************************************************************/
 123
 124 uint32 reg_perfcount_get_last_counter(uint32 base_index)
 125 {
 126         uint32 retval;
 127
 128         if(base_index == 0)
 129                 retval = 0;
 130         else
 131                 retval = base_index * 2;
 132
 133         return retval;
 134 }
 135
 136 /*********************************************************************
 137 *********************************************************************/
 138
 139 uint32 reg_perfcount_get_last_help(uint32 last_counter)
 140 {
 141         uint32 retval;
 142
 143         if(last_counter == 0)
 144                 retval = 0;
 145         else
 146                 retval = last_counter + 1;
 147
 148         return retval;
 149 }
 150
 151
 152 /*********************************************************************
 153 *********************************************************************/
 154
 155 static uint32 _reg_perfcount_multi_sz_from_tdb(TDB_CONTEXT *tdb,
 156                                                int keyval,
 157                                                char **retbuf,
 158                                                uint32 buffer_size)
 159 {
 160         TDB_DATA kbuf, dbuf;
 161         char temp[256];
 162         char *buf1 = *retbuf;
 163         uint32 working_size = 0;
 164         UNISTR2 name_index, name;
 165
 166         memset(temp, 0, sizeof(temp));
 167         snprintf(temp, sizeof(temp), "%d", keyval);
 168         kbuf = string_tdb_data(temp);
 169         dbuf = tdb_fetch(tdb, kbuf);
 170         if(dbuf.dptr == NULL)
 171         {
 172                 /* If a key isn't there, just bypass it -- this really shouldn't
 173                    happen unless someone's mucking around with the tdb */
 174                 DEBUG(3, ("_reg_perfcount_multi_sz_from_tdb: failed to find key [%s] in [%s].\n",
 175                           temp, tdb_name(tdb)));
 176                 return buffer_size;
 177         }
 178         /* First encode the name_index */
 179         working_size = (kbuf.dsize + 1)*sizeof(uint16);
 180         buf1 = (char *)SMB_REALLOC(buf1, buffer_size + working_size);
 181         if(!buf1) {
 182                 buffer_size = 0;
 183                 return buffer_size;
 184         }
 185         init_unistr2(&name_index, (const char *)kbuf.dptr, UNI_STR_TERMINATE);
 186         memcpy(buf1+buffer_size, (char *)name_index.buffer, working_size);
 187         buffer_size += working_size;
 188         /* Now encode the actual name */
 189         working_size = (dbuf.dsize + 1)*sizeof(uint16);
 190         buf1 = (char *)SMB_REALLOC(buf1, buffer_size + working_size);
 191         if(!buf1) {
 192                 buffer_size = 0;
 193                 return buffer_size;
 194         }
 195         memset(temp, 0, sizeof(temp));
 196         memcpy(temp, dbuf.dptr, dbuf.dsize);
 197         SAFE_FREE(dbuf.dptr);
 198         init_unistr2(&name, temp, UNI_STR_TERMINATE);
 199         memcpy(buf1+buffer_size, (char *)name.buffer, working_size);
 200         buffer_size += working_size;
 201
 202         *retbuf = buf1;
 203
 204         return buffer_size;
 205 }
 206
 207 /*********************************************************************
 208 *********************************************************************/
 209
 210 uint32 reg_perfcount_get_counter_help(uint32 base_index, char **retbuf)
 211 {
 212         char *buf1 = NULL;
 213         uint32 buffer_size = 0;
 214         TDB_CONTEXT *names;
 215         const char *fname = counters_directory( NAMES_DB );
 216         int i;
 217
 218         if(base_index == 0)
 219                 return 0;
 220
 221         names = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDONLY, 0444);
 222
 223         if(names == NULL)
 224         {
 225                 DEBUG(1, ("reg_perfcount_get_counter_help: unable to open [%s].\n", fname));
 226                 return 0;
 227         }
 228
 229         for(i = 1; i <= base_index; i++)
 230         {
 231                 buffer_size = _reg_perfcount_multi_sz_from_tdb(names, (i*2)+1, retbuf, buffer_size);
 232         }
 233         tdb_close(names);
 234
 235         /* Now terminate the MULTI_SZ with a double unicode NULL */
 236         buf1 = *retbuf;
 237         buf1 = (char *)SMB_REALLOC(buf1, buffer_size + 2);
 238         if(!buf1) {
 239                 buffer_size = 0;
 240         } else {
 241                 buf1[buffer_size++] = '\0';
 242                 buf1[buffer_size++] = '\0';
 243         }
 244
 245         *retbuf = buf1;
 246
 247         return buffer_size;
 248 }
 249
 250 /*********************************************************************
 251 *********************************************************************/
 252
 253 uint32 reg_perfcount_get_counter_names(uint32 base_index, char **retbuf)
 254 {
 255         char *buf1 = NULL;
 256         uint32 buffer_size = 0;
 257         TDB_CONTEXT *names;
 258         const char *fname = counters_directory( NAMES_DB );
 259         int i;
 260
 261         if(base_index == 0)
 262                 return 0;
 263
 264         names = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDONLY, 0444);
 265
 266         if(names == NULL)
 267         {
 268                 DEBUG(1, ("reg_perfcount_get_counter_names: unable to open [%s].\n", fname));
 269                 return 0;
 270         }
 271
 272         buffer_size = _reg_perfcount_multi_sz_from_tdb(names, 1, retbuf, buffer_size);
 273
 274         for(i = 1; i <= base_index; i++)
 275         {
 276                 buffer_size = _reg_perfcount_multi_sz_from_tdb(names, i*2, retbuf, buffer_size);
 277         }
 278         tdb_close(names);
 279
 280         /* Now terminate the MULTI_SZ with a double unicode NULL */
 281         buf1 = *retbuf;
 282         buf1 = (char *)SMB_REALLOC(buf1, buffer_size + 2);
 283         if(!buf1) {
 284                 buffer_size = 0;
 285         } else {
 286                 buf1[buffer_size++] = '\0';
 287                 buf1[buffer_size++] = '\0';
 288         }
 289
 290         *retbuf=buf1;
 291
 292         return buffer_size;
 293 }
 294
 295 /*********************************************************************
 296 *********************************************************************/
 297
 298 static void _reg_perfcount_make_key(TDB_DATA *key,
 299                                     char *buf,
 300                                     int buflen,
 301                                     int key_part1,
 302                                     const char *key_part2)
 303 {
 304         memset(buf, 0, buflen);
 305         if(key_part2 != NULL)
 306                 snprintf(buf, buflen,"%d%s", key_part1, key_part2);
 307         else
 308                 snprintf(buf, buflen, "%d", key_part1);
 309
 310         *key = string_tdb_data(buf);
 311
 312         return;
 313 }
 314
 315 /*********************************************************************
 316 *********************************************************************/
 317
 318 static BOOL _reg_perfcount_isparent(TDB_DATA data)
 319 {
 320         if(data.dsize > 0)
 321         {
 322                 if(data.dptr[0] == 'p')
 323                         return True;
 324                 else
 325                         return False;
 326         }
 327         return False;
 328 }
 329
 330 /*********************************************************************
 331 *********************************************************************/
 332
 333 static BOOL _reg_perfcount_ischild(TDB_DATA data)
 334 {
 335         if(data.dsize > 0)
 336         {
 337                 if(data.dptr[0] == 'c')
 338                         return True;
 339                 else
 340                         return False;
 341         }
 342         return False;
 343 }
 344
 345 /*********************************************************************
 346 *********************************************************************/
 347
 348 static uint32 _reg_perfcount_get_numinst(int objInd, TDB_CONTEXT *names)
 349 {
 350         TDB_DATA key, data;
 351         char buf[PERFCOUNT_MAX_LEN];
 352
 353         _reg_perfcount_make_key(&key, buf, PERFCOUNT_MAX_LEN, objInd, "inst");
 354         data = tdb_fetch(names, key);
 355
 356         if(data.dptr == NULL)
 357                 return (uint32)PERF_NO_INSTANCES;
 358
 359         memset(buf, 0, PERFCOUNT_MAX_LEN);
 360         memcpy(buf, data.dptr, data.dsize);
 361         SAFE_FREE(data.dptr);
 362         return (uint32)atoi(buf);
 363 }
 364
 365 /*********************************************************************
 366 *********************************************************************/
 367
 368 static BOOL _reg_perfcount_add_object(PERF_DATA_BLOCK *block,
 369                                       prs_struct *ps,
 370                                       int num,
 371                                       TDB_DATA data,
 372                                       TDB_CONTEXT *names)
 373 {
 374         int i;
 375         BOOL success = True;
 376         PERF_OBJECT_TYPE *obj;
 377
 378         block->objects = (PERF_OBJECT_TYPE *)TALLOC_REALLOC_ARRAY(ps->mem_ctx,
 379                                                                   block->objects,
 380                                                                   PERF_OBJECT_TYPE,
 381                                                                   block->NumObjectTypes+1);
 382         if(block->objects == NULL)
 383                 return False;
 384         obj = &(block->objects[block->NumObjectTypes]);
 385         memset((void *)&(block->objects[block->NumObjectTypes]), 0, sizeof(PERF_OBJECT_TYPE));
 386         block->objects[block->NumObjectTypes].ObjectNameTitleIndex = num;
 387         block->objects[block->NumObjectTypes].ObjectNameTitlePointer = 0;
 388         block->objects[block->NumObjectTypes].ObjectHelpTitleIndex = num+1;
 389         block->objects[block->NumObjectTypes].ObjectHelpTitlePointer = 0;
 390         block->objects[block->NumObjectTypes].NumCounters = 0;
 391         block->objects[block->NumObjectTypes].DefaultCounter = 0;
 392         block->objects[block->NumObjectTypes].NumInstances = _reg_perfcount_get_numinst(num, names);
 393         block->objects[block->NumObjectTypes].counters = NULL;
 394         block->objects[block->NumObjectTypes].instances = NULL;
 395         block->objects[block->NumObjectTypes].counter_data.ByteLength = sizeof(uint32);
 396         block->objects[block->NumObjectTypes].counter_data.data = NULL;
 397         block->objects[block->NumObjectTypes].DetailLevel = PERF_DETAIL_NOVICE;
 398         block->NumObjectTypes+=1;
 399
 400         for(i = 0; i < (int)obj->NumInstances; i++) {
 401                 success = _reg_perfcount_add_instance(obj, ps, i, names);
 402         }
 403
 404         return success;
 405 }
 406
 407 /*********************************************************************
 408 *********************************************************************/
 409
 410 BOOL _reg_perfcount_get_counter_data(TDB_DATA key, TDB_DATA *data)
 411 {
 412         TDB_CONTEXT *counters;
 413         const char *fname = counters_directory( DATA_DB );
 414
 415         counters = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDONLY, 0444);
 416
 417         if(counters == NULL)
 418         {
 419                 DEBUG(1, ("reg_perfcount_get_counter_data: unable to open [%s].\n", fname));
 420                 return False;
 421         }
 422
 423         *data = tdb_fetch(counters, key);
 424
 425         tdb_close(counters);
 426
 427         return True;
 428 }
 429
 430 /*********************************************************************
 431 *********************************************************************/
 432
 433 static uint32 _reg_perfcount_get_size_field(uint32 CounterType)
 434 {
 435         uint32 retval;
 436
 437         retval = CounterType;
 438
 439         /* First mask out reserved lower 8 bits */
 440         retval = retval & 0xFFFFFF00;
 441         retval = retval << 22;
 442         retval = retval >> 22;
 443
 444         return retval;
 445 }
 446
 447 /*********************************************************************
 448 *********************************************************************/
 449
 450 static uint32 _reg_perfcount_compute_scale(SMB_BIG_INT data)
 451 {
 452         int scale = 0;
 453         if(data == 0)
 454                 return scale;
 455         while(data > 100)
 456         {
 457                 data /= 10;
 458                 scale--;
 459         }
 460         while(data < 10)
 461         {
 462                 data *= 10;
 463                 scale++;
 464         }
 465
 466         return (uint32)scale;
 467 }
 468
 469 /*********************************************************************
 470 *********************************************************************/
 471
 472 static BOOL _reg_perfcount_get_counter_info(PERF_DATA_BLOCK *block,
 473                                             prs_struct *ps,
 474                                             int CounterIndex,
 475                                             PERF_OBJECT_TYPE *obj,
 476                                             TDB_CONTEXT *names)
 477 {
 478         TDB_DATA key, data;
 479         char buf[PERFCOUNT_MAX_LEN];
 480         size_t dsize, padding;
 481         long int data32, dbuf[2];
 482         SMB_BIG_INT data64;
 483         uint32 counter_size;
 484
 485         obj->counters[obj->NumCounters].DefaultScale = 0;
 486         dbuf[0] = dbuf[1] = 0;
 487         padding = 0;
 488
 489         _reg_perfcount_make_key(&key, buf, PERFCOUNT_MAX_LEN, CounterIndex, "type");
 490         data = tdb_fetch(names, key);
 491         if(data.dptr == NULL)
 492         {
 493                 DEBUG(3, ("_reg_perfcount_get_counter_info: No type data for counter [%d].\n", CounterIndex));
 494                 return False;
 495         }
 496         memset(buf, 0, PERFCOUNT_MAX_LEN);
 497         memcpy(buf, data.dptr, data.dsize);
 498         obj->counters[obj->NumCounters].CounterType = atoi(buf);
 499         DEBUG(10, ("_reg_perfcount_get_counter_info: Got type [%d] for counter [%d].\n",
 500                    obj->counters[obj->NumCounters].CounterType, CounterIndex));
 501         SAFE_FREE(data.dptr);
 502
 503         /* Fetch the actual data */
 504         _reg_perfcount_make_key(&key, buf, PERFCOUNT_MAX_LEN, CounterIndex, "");
 505         _reg_perfcount_get_counter_data(key, &data);
 506         if(data.dptr == NULL)
 507         {
 508                 DEBUG(3, ("_reg_perfcount_get_counter_info: No counter data for counter [%d].\n", CounterIndex));
 509                 return False;
 510         }
 511
 512         counter_size = _reg_perfcount_get_size_field(obj->counters[obj->NumCounters].CounterType);
 513
 514         if(counter_size == PERF_SIZE_DWORD)
 515         {
 516                 dsize = sizeof(data32);
 517                 memset(buf, 0, PERFCOUNT_MAX_LEN);
 518                 memcpy(buf, data.dptr, data.dsize);
 519                 data32 = strtol(buf, NULL, 0);
 520                 if((obj->counters[obj->NumCounters].CounterType & 0x00000F00) == PERF_TYPE_NUMBER)
 521                         obj->counters[obj->NumCounters].DefaultScale = _reg_perfcount_compute_scale((SMB_BIG_INT)data32);
 522                 else
 523                         obj->counters[obj->NumCounters].DefaultScale = 0;
 524                 dbuf[0] = data32;
 525                 padding = (dsize - (obj->counter_data.ByteLength%dsize)) % dsize;
 526         }
 527         else if(counter_size == PERF_SIZE_LARGE)
 528         {
 529                 dsize = sizeof(data64);
 530                 memset(buf, 0, PERFCOUNT_MAX_LEN);
 531                 memcpy(buf, data.dptr, data.dsize);
 532                 data64 = atof(buf);
 533                 if((obj->counters[obj->NumCounters].CounterType & 0x00000F00) == PERF_TYPE_NUMBER)
 534                         obj->counters[obj->NumCounters].DefaultScale = _reg_perfcount_compute_scale(data64);
 535                 else
 536                         obj->counters[obj->NumCounters].DefaultScale = 0;
 537                 memcpy((void *)dbuf, (const void *)&data64, dsize);
 538                 padding = (dsize - (obj->counter_data.ByteLength%dsize)) % dsize;
 539         }
 540         else /* PERF_SIZE_VARIABLE_LEN */
 541         {
 542                 dsize = data.dsize;
 543                 memset(buf, 0, PERFCOUNT_MAX_LEN);
 544                 memcpy(buf, data.dptr, data.dsize);
 545         }
 546         SAFE_FREE(data.dptr);
 547
 548         obj->counter_data.ByteLength += dsize + padding;
 549         obj->counter_data.data = TALLOC_REALLOC_ARRAY(ps->mem_ctx,
 550                                                       obj->counter_data.data,
 551                                                       uint8,
 552                                                       obj->counter_data.ByteLength - sizeof(uint32));
 553         if(obj->counter_data.data == NULL)
 554                 return False;
 555         if(dbuf[0] != 0 || dbuf[1] != 0)
 556         {
 557                 memcpy((void *)(obj->counter_data.data +
 558                                 (obj->counter_data.ByteLength - (sizeof(uint32) + dsize))),
 559                        (const void *)dbuf, dsize);
 560         }
 561         else
 562         {
 563                 /* Handling PERF_SIZE_VARIABLE_LEN */
 564                 memcpy((void *)(obj->counter_data.data +
 565                                 (obj->counter_data.ByteLength - (sizeof(uint32) + dsize))),
 566                        (const void *)buf, dsize);
 567         }
 568         obj->counters[obj->NumCounters].CounterOffset = obj->counter_data.ByteLength - dsize;
 569         if(obj->counters[obj->NumCounters].CounterOffset % dsize != 0)
 570         {
 571                 DEBUG(3,("Improperly aligned counter [%d]\n", obj->NumCounters));
 572         }
 573         obj->counters[obj->NumCounters].CounterSize = dsize;
 574
 575         return True;
 576 }
 577
 578 /*********************************************************************
 579 *********************************************************************/
 580
 581 PERF_OBJECT_TYPE *_reg_perfcount_find_obj(PERF_DATA_BLOCK *block, int objind)
 582 {
 583         int i;
 584
 585         PERF_OBJECT_TYPE *obj = NULL;
 586
 587         for(i = 0; i < block->NumObjectTypes; i++)
 588         {
 589                 if(block->objects[i].ObjectNameTitleIndex == objind)
 590                 {
 591                         obj = &(block->objects[i]);
 592                 }
 593         }
 594
 595         return obj;
 596 }
 597
 598 /*********************************************************************
 599 *********************************************************************/
 600
 601 static BOOL _reg_perfcount_add_counter(PERF_DATA_BLOCK *block,
 602                                        prs_struct *ps,
 603                                        int num,
 604                                        TDB_DATA data,
 605                                        TDB_CONTEXT *names)
 606 {
 607         char *begin, *end, *start, *stop;
 608         int parent;
 609         PERF_OBJECT_TYPE *obj;
 610         BOOL success = True;
 611         char buf[PERFCOUNT_MAX_LEN];
 612
 613         obj = NULL;
 614         memset(buf, 0, PERFCOUNT_MAX_LEN);
 615         memcpy(buf, data.dptr, data.dsize);
 616         begin = index(buf, '[');
 617         end = index(buf, ']');
 618         if(begin == NULL || end == NULL)
 619                 return False;
 620         start = begin+1;
 621
 622         while(start < end) {
 623                 stop = index(start, ',');
 624                 if(stop == NULL)
 625                         stop = end;
 626                 *stop = '\0';
 627                 parent = atoi(start);
 628
 629                 obj = _reg_perfcount_find_obj(block, parent);
 630                 if(obj == NULL) {
 631                         /* At this point we require that the parent object exist.
 632                            This can probably be handled better at some later time */
 633                         DEBUG(3, ("_reg_perfcount_add_counter: Could not find parent object [%d] for counter [%d].\n",
 634                                   parent, num));
 635                         return False;
 636                 }
 637                 obj->counters = (PERF_COUNTER_DEFINITION *)TALLOC_REALLOC_ARRAY(ps->mem_ctx,
 638                                                                                 obj->counters,
 639                                                                                 PERF_COUNTER_DEFINITION,
 640                                                                                 obj->NumCounters+1);
 641                 if(obj->counters == NULL)
 642                         return False;
 643                 memset((void *)&(obj->counters[obj->NumCounters]), 0, sizeof(PERF_COUNTER_DEFINITION));
 644                 obj->counters[obj->NumCounters].CounterNameTitleIndex=num;
 645                 obj->counters[obj->NumCounters].CounterHelpTitleIndex=num+1;
 646                 obj->counters[obj->NumCounters].DetailLevel = PERF_DETAIL_NOVICE;
 647                 obj->counters[obj->NumCounters].ByteLength = sizeof(PERF_COUNTER_DEFINITION);
 648                 success = _reg_perfcount_get_counter_info(block, ps, num, obj, names);
 649                 obj->NumCounters += 1;
 650                 start = stop + 1;
 651         }
 652
 653         /* Handle case of Objects/Counters without any counter data, which would suggest
 654            that the required instances are not there yet, so change NumInstances from
 655            PERF_NO_INSTANCES to 0 */
 656
 657         return success;
 658 }
 659
 660 /*********************************************************************
 661 *********************************************************************/
 662
 663 BOOL _reg_perfcount_get_instance_info(PERF_INSTANCE_DEFINITION *inst,
 664                                       prs_struct *ps,
 665                                       int instId,
 666                                       PERF_OBJECT_TYPE *obj,
 667                                       TDB_CONTEXT *names)
 668 {
 669         TDB_DATA key, data;
 670         char buf[PERFCOUNT_MAX_LEN], temp[PERFCOUNT_MAX_LEN];
 671         wpstring name;
 672         int pad;
 673
 674         /* First grab the instance data from the data file */
 675         memset(temp, 0, PERFCOUNT_MAX_LEN);
 676         snprintf(temp, PERFCOUNT_MAX_LEN, "i%d", instId);
 677         _reg_perfcount_make_key(&key, buf, PERFCOUNT_MAX_LEN, obj->ObjectNameTitleIndex, temp);
 678         _reg_perfcount_get_counter_data(key, &data);
 679         if(data.dptr == NULL)
 680         {
 681                 DEBUG(3, ("_reg_perfcount_get_instance_info: No instance data for instance [%s].\n",
 682                           buf));
 683                 return False;
 684         }
 685         inst->counter_data.ByteLength = data.dsize + sizeof(inst->counter_data.ByteLength);
 686         inst->counter_data.data = TALLOC_REALLOC_ARRAY(ps->mem_ctx,
 687                                                        inst->counter_data.data,
 688                                                        uint8,
 689                                                        data.dsize);
 690         if(inst->counter_data.data == NULL)
 691                 return False;
 692         memset(inst->counter_data.data, 0, data.dsize);
 693         memcpy(inst->counter_data.data, data.dptr, data.dsize);
 694         SAFE_FREE(data.dptr);
 695
 696         /* Fetch instance name */
 697         memset(temp, 0, PERFCOUNT_MAX_LEN);
 698         snprintf(temp, PERFCOUNT_MAX_LEN, "i%dname", instId);
 699         _reg_perfcount_make_key(&key, buf, PERFCOUNT_MAX_LEN, obj->ObjectNameTitleIndex, temp);
 700         data = tdb_fetch(names, key);
 701         if(data.dptr == NULL)
 702         {
 703                 /* Not actually an error, but possibly unintended? -- just logging FYI */
 704                 DEBUG(3, ("_reg_perfcount_get_instance_info: No instance name for instance [%s].\n",
 705                           buf));
 706                 inst->NameLength = 0;
 707         }
 708         else
 709         {
 710                 memset(buf, 0, PERFCOUNT_MAX_LEN);
 711                 memcpy(buf, data.dptr, data.dsize);
 712                 rpcstr_push((void *)name, buf, sizeof(name), STR_TERMINATE);
 713                 inst->NameLength = (strlen_w(name) * 2) + 2;
 714                 inst->data = TALLOC_REALLOC_ARRAY(ps->mem_ctx,
 715                                                   inst->data,
 716                                                   uint8,
 717                                                   inst->NameLength);
 718                 if (inst->data == NULL) {
 719                         SAFE_FREE(data.dptr);
 720                         return False;
 721                 }
 722                 memcpy(inst->data, name, inst->NameLength);
 723                 SAFE_FREE(data.dptr);
 724         }
 725
 726         inst->ParentObjectTitleIndex = 0;
 727         inst->ParentObjectTitlePointer = 0;
 728         inst->UniqueID = PERF_NO_UNIQUE_ID;
 729         inst->NameOffset = 6 * sizeof(uint32);
 730
 731         inst->ByteLength = inst->NameOffset + inst->NameLength;
 732         /* Need to be aligned on a 64-bit boundary here for counter_data */
 733         if((pad = (inst->ByteLength % 8)))
 734         {
 735                 pad = 8 - pad;
 736                 inst->data = TALLOC_REALLOC_ARRAY(ps->mem_ctx,
 737                                                   inst->data,
 738                                                   uint8,
 739                                                   inst->NameLength + pad);
 740                 memset(inst->data + inst->NameLength, 0, pad);
 741                 inst->ByteLength += pad;
 742         }
 743
 744         return True;
 745 }
 746
 747 /*********************************************************************
 748 *********************************************************************/
 749
 750 BOOL _reg_perfcount_add_instance(PERF_OBJECT_TYPE *obj,
 751                                  prs_struct *ps,
 752                                  int instInd,
 753                                  TDB_CONTEXT *names)
 754 {
 755         PERF_INSTANCE_DEFINITION *inst;
 756
 757         if(obj->instances == NULL) {
 758                 obj->instances = TALLOC_REALLOC_ARRAY(ps->mem_ctx,
 759                                                       obj->instances,
 760                                                       PERF_INSTANCE_DEFINITION,
 761                                                       obj->NumInstances);
 762         }
 763         if(obj->instances == NULL)
 764                 return False;
 765
 766         memset(&(obj->instances[instInd]), 0, sizeof(PERF_INSTANCE_DEFINITION));
 767         inst = &(obj->instances[instInd]);
 768         return _reg_perfcount_get_instance_info(inst, ps, instInd, obj, names);
 769 }
 770
 771 /*********************************************************************
 772 *********************************************************************/
 773
 774 static int _reg_perfcount_assemble_global(PERF_DATA_BLOCK *block,
 775                                           prs_struct *ps,
 776                                           int base_index,
 777                                           TDB_CONTEXT *names)
 778 {
 779         BOOL success;
 780         int i, j, retval = 0;
 781         char keybuf[PERFCOUNT_MAX_LEN];
 782         TDB_DATA key, data;
 783
 784         for(i = 1; i <= base_index; i++)
 785         {
 786                 j = i*2;
 787                 _reg_perfcount_make_key(&key, keybuf, PERFCOUNT_MAX_LEN, j, "rel");
 788                 data = tdb_fetch(names, key);
 789                 if(data.dptr != NULL)
 790                 {
 791                         if(_reg_perfcount_isparent(data))
 792                                 success = _reg_perfcount_add_object(block, ps, j, data, names);
 793                         else if(_reg_perfcount_ischild(data))
 794                                 success = _reg_perfcount_add_counter(block, ps, j, data, names);
 795                         else
 796                         {
 797                                 DEBUG(3, ("Bogus relationship [%s] for counter [%d].\n", data.dptr, j));
 798                                 success = False;
 799                         }
 800                         if(success == False)
 801                         {
 802                                 DEBUG(3, ("_reg_perfcount_assemble_global: Failed to add new relationship for counter [%d].\n", j));
 803                                 retval = -1;
 804                         }
 805                         SAFE_FREE(data.dptr);
 806                 }
 807                 else
 808                         DEBUG(3, ("NULL relationship for counter [%d] using key [%s].\n", j, keybuf));
 809         }
 810         return retval;
 811 }
 812
 813 /*********************************************************************
 814 *********************************************************************/
 815
 816 static BOOL _reg_perfcount_get_64(SMB_BIG_UINT *retval,
 817                                   TDB_CONTEXT *tdb,
 818                                   int key_part1,
 819                                   const char *key_part2)
 820 {
 821         TDB_DATA key, data;
 822         char buf[PERFCOUNT_MAX_LEN];
 823
 824         _reg_perfcount_make_key(&key, buf, PERFCOUNT_MAX_LEN, key_part1, key_part2);
 825
 826         data = tdb_fetch(tdb, key);
 827         if(data.dptr == NULL)
 828         {
 829                 DEBUG(3,("_reg_perfcount_get_64: No data found for key [%s].\n", key.dptr));
 830                 return False;
 831         }
 832
 833         memset(buf, 0, PERFCOUNT_MAX_LEN);
 834         memcpy(buf, data.dptr, data.dsize);
 835         SAFE_FREE(data.dptr);
 836
 837         *retval = atof(buf);
 838
 839         return True;
 840 }
 841
 842 /*********************************************************************
 843 *********************************************************************/
 844
 845 static BOOL _reg_perfcount_init_data_block_perf(PERF_DATA_BLOCK *block,
 846                                                 TDB_CONTEXT *names)
 847 {
 848         SMB_BIG_UINT PerfFreq, PerfTime, PerfTime100nSec;
 849         TDB_CONTEXT *counters;
 850         BOOL status = False;
 851         const char *fname = counters_directory( DATA_DB );
 852
 853         counters = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDONLY, 0444);
 854
 855         if(counters == NULL)
 856         {
 857                 DEBUG(1, ("reg_perfcount_init_data_block_perf: unable to open [%s].\n", fname));
 858                 return False;
 859         }
 860
 861         status = _reg_perfcount_get_64(&PerfFreq, names, 0, "PerfFreq");
 862         if(status == False)
 863         {
 864                 tdb_close(counters);
 865                 return status;
 866         }
 867         memcpy((void *)&(block->PerfFreq), (const void *)&PerfFreq, sizeof(PerfFreq));
 868
 869         status = _reg_perfcount_get_64(&PerfTime, counters, 0, "PerfTime");
 870         if(status == False)
 871         {
 872                 tdb_close(counters);
 873                 return status;
 874         }
 875         memcpy((void *)&(block->PerfTime), (const void *)&PerfTime, sizeof(PerfTime));
 876
 877         status = _reg_perfcount_get_64(&PerfTime100nSec, counters, 0, "PerfTime100nSec");
 878         if(status == False)
 879         {
 880                 tdb_close(counters);
 881                 return status;
 882         }
 883         memcpy((void *)&(block->PerfTime100nSec), (const void *)&PerfTime100nSec, sizeof(PerfTime100nSec));
 884
 885         tdb_close(counters);
 886         return True;
 887 }
 888
 889 /*********************************************************************
 890 *********************************************************************/
 891
 892 static BOOL _reg_perfcount_init_data_block(PERF_DATA_BLOCK *block,
 893                                            prs_struct *ps, TDB_CONTEXT *names)
 894 {
 895         wpstring temp;
 896         time_t tm;
 897
 898         memset(temp, 0, sizeof(temp));
 899         rpcstr_push((void *)temp, "PERF", sizeof(temp), STR_TERMINATE);
 900         memcpy(block->Signature, temp, strlen_w(temp) *2);
 901
 902         if(ps->bigendian_data == RPC_BIG_ENDIAN)
 903                 block->LittleEndian = 0;
 904         else
 905                 block->LittleEndian = 1;
 906         block->Version = 1;
 907         block->Revision = 1;
 908         block->TotalByteLength = 0;
 909         block->NumObjectTypes = 0;
 910         block->DefaultObject = -1;
 911         block->objects = NULL;
 912         tm = time(NULL);
 913         make_systemtime(&(block->SystemTime), gmtime(&tm));
 914         _reg_perfcount_init_data_block_perf(block, names);
 915         memset(temp, 0, sizeof(temp));
 916         rpcstr_push((void *)temp, global_myname(), sizeof(temp), STR_TERMINATE);
 917         block->SystemNameLength = (strlen_w(temp) * 2) + 2;
 918         block->data = TALLOC_ZERO_ARRAY(ps->mem_ctx, uint8, block->SystemNameLength + (8 - (block->SystemNameLength % 8)));
 919         if (block->data == NULL) {
 920                 return False;
 921         }
 922         memcpy(block->data, temp, block->SystemNameLength);
 923         block->SystemNameOffset = sizeof(PERF_DATA_BLOCK) - sizeof(block->objects) - sizeof(block->data);
 924         block->HeaderLength = block->SystemNameOffset + block->SystemNameLength;
 925         /* Make sure to adjust for 64-bit alignment for when we finish writing the system name,
 926            so that the PERF_OBJECT_TYPE struct comes out 64-bit aligned */
 927         block->HeaderLength += 8 - (block->HeaderLength % 8);
 928
 929         return True;
 930 }
 931
 932 /*********************************************************************
 933 *********************************************************************/
 934
 935 static uint32 _reg_perfcount_perf_data_block_fixup(PERF_DATA_BLOCK *block, prs_struct *ps)
 936 {
 937         int obj, cnt, inst, pad, i;
 938         PERF_OBJECT_TYPE *object;
 939         PERF_INSTANCE_DEFINITION *instance;
 940         PERF_COUNTER_DEFINITION *counter;
 941         PERF_COUNTER_BLOCK *counter_data;
 942         char *temp = NULL, *src_addr, *dst_addr;
 943
 944         block->TotalByteLength = 0;
 945         object = block->objects;
 946         for(obj = 0; obj < block->NumObjectTypes; obj++)
 947         {
 948                 object[obj].TotalByteLength = 0;
 949                 object[obj].DefinitionLength = 0;
 950                 instance = object[obj].instances;
 951                 counter = object[obj].counters;
 952                 for(cnt = 0; cnt < object[obj].NumCounters; cnt++)
 953                 {
 954                         object[obj].TotalByteLength += counter[cnt].ByteLength;
 955                         object[obj].DefinitionLength += counter[cnt].ByteLength;
 956                 }
 957                 if(object[obj].NumInstances != PERF_NO_INSTANCES)
 958                 {
 959                         for(inst = 0; inst < object[obj].NumInstances; inst++)
 960                         {
 961                                 instance = &(object[obj].instances[inst]);
 962                                 object[obj].TotalByteLength += instance->ByteLength;
 963                                 counter_data = &(instance->counter_data);
 964                                 counter = &(object[obj].counters[object[obj].NumCounters - 1]);
 965                                 counter_data->ByteLength = counter->CounterOffset + counter->CounterSize + sizeof(counter_data->ByteLength);
 966                                 temp = TALLOC_REALLOC_ARRAY(ps->mem_ctx,
 967                                                             temp,
 968                                                             char,
 969                                                             counter_data->ByteLength- sizeof(counter_data->ByteLength));
 970                                 if (temp == NULL) {
 971                                         return 0;
 972                                 }
 973                                 memset(temp, 0, counter_data->ByteLength - sizeof(counter_data->ByteLength));
 974                                 src_addr = (char *)counter_data->data;
 975                                 for(i = 0; i < object[obj].NumCounters; i++)
 976                                 {
 977                                         counter = &(object[obj].counters[i]);
 978                                         dst_addr = temp + counter->CounterOffset - sizeof(counter_data->ByteLength);
 979                                         memcpy(dst_addr, src_addr, counter->CounterSize);
 980                                         src_addr += counter->CounterSize;
 981                                 }
 982                                 /* Make sure to be 64-bit aligned */
 983                                 if((pad = (counter_data->ByteLength % 8)))
 984                                 {
 985                                         pad = 8 - pad;
 986                                 }
 987                                 counter_data->data = TALLOC_REALLOC_ARRAY(ps->mem_ctx,
 988                                                                          counter_data->data,
 989                                                                          uint8,
 990                                                                          counter_data->ByteLength - sizeof(counter_data->ByteLength) + pad);
 991                                 if (counter_data->data == NULL) {
 992                                         return 0;
 993                                 }
 994                                 memset(counter_data->data, 0, counter_data->ByteLength - sizeof(counter_data->ByteLength) + pad);
 995                                 memcpy(counter_data->data, temp, counter_data->ByteLength - sizeof(counter_data->ByteLength));
 996                                 counter_data->ByteLength += pad;
 997                                 object[obj].TotalByteLength += counter_data->ByteLength;
 998                         }
 999                 }
1000                 else
1001                 {
1002                         /* Need to be 64-bit aligned at the end of the counter_data block, so pad counter_data to a 64-bit boundary,
1003                            so that the next PERF_OBJECT_TYPE can start on a 64-bit alignment */
1004                         if((pad = (object[obj].counter_data.ByteLength % 8)))
1005                         {
1006                                 pad = 8 - pad;
1007                                 object[obj].counter_data.data = TALLOC_REALLOC_ARRAY(ps->mem_ctx,
1008                                                                                      object[obj].counter_data.data,
1009                                                                                      uint8,
1010                                                                                      object[obj].counter_data.ByteLength + pad);
1011                                 memset((void *)(object[obj].counter_data.data + object[obj].counter_data.ByteLength), 0, pad);
1012                                 object[obj].counter_data.ByteLength += pad;
1013                         }
1014                         object[obj].TotalByteLength += object[obj].counter_data.ByteLength;
1015                 }
1016                 object[obj].HeaderLength = sizeof(*object) - (sizeof(counter) + sizeof(instance) + sizeof(PERF_COUNTER_BLOCK));
1017                 object[obj].TotalByteLength += object[obj].HeaderLength;
1018                 object[obj].DefinitionLength += object[obj].HeaderLength;
1019
1020                 block->TotalByteLength += object[obj].TotalByteLength;
1021         }
1022
1023         return block->TotalByteLength;
1024 }
1025
1026 /*********************************************************************
1027 *********************************************************************/
1028
1029 uint32 reg_perfcount_get_perf_data_block(uint32 base_index,
1030                                          prs_struct *ps,
1031                                          PERF_DATA_BLOCK *block,
1032                                          const char *object_ids)
1033 {
1034         uint32 buffer_size = 0;
1035         const char *fname = counters_directory( NAMES_DB );
1036         TDB_CONTEXT *names;
1037         int retval = 0;
1038
1039         names = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDONLY, 0444);
1040
1041         if(names == NULL)
1042         {
1043                 DEBUG(1, ("reg_perfcount_get_perf_data_block: unable to open [%s].\n", fname));
1044                 return 0;
1045         }
1046
1047         if (!_reg_perfcount_init_data_block(block, ps, names)) {
1048                 DEBUG(0, ("_reg_perfcount_init_data_block failed\n"));
1049                 tdb_close(names);
1050                 return 0;
1051         }
1052
1053         reg_perfcount_get_last_counter(base_index);
1054
1055         if(object_ids == NULL)
1056         {
1057                 /* we're getting a request for "Global" here */
1058                 retval = _reg_perfcount_assemble_global(block, ps, base_index, names);
1059         }
1060         else
1061         {
1062                 /* we're getting a request for a specific set of PERF_OBJECT_TYPES */
1063                 retval = _reg_perfcount_assemble_global(block, ps, base_index, names);
1064         }
1065         buffer_size = _reg_perfcount_perf_data_block_fixup(block, ps);
1066
1067         tdb_close(names);
1068
1069         if (retval == -1) {
1070                 return 0;
1071         }
1072
1073         return buffer_size + block->HeaderLength;
1074 }
1075
1076 /*********************************************************************
1077 *********************************************************************/
1078
1079 static BOOL _reg_perfcount_marshall_perf_data_block(prs_struct *ps, PERF_DATA_BLOCK block, int depth)
1080 {
1081         int i;
1082         prs_debug(ps, depth, "", "_reg_perfcount_marshall_perf_data_block");
1083         depth++;
1084
1085         if(!prs_align(ps))
1086                 return False;
1087         for(i = 0; i < 4; i++)
1088         {
1089                 if(!prs_uint16("Signature", ps, depth, &block.Signature[i]))
1090                         return False;
1091         }
1092         if(!prs_uint32("Little Endian", ps, depth, &block.LittleEndian))
1093                 return False;
1094         if(!prs_uint32("Version", ps, depth, &block.Version))
1095                 return False;
1096         if(!prs_uint32("Revision", ps, depth, &block.Revision))
1097                 return False;
1098         if(!prs_uint32("TotalByteLength", ps, depth, &block.TotalByteLength))
1099                 return False;
1100         if(!prs_uint32("HeaderLength", ps, depth, &block.HeaderLength))
1101                 return False;
1102         if(!prs_uint32("NumObjectTypes", ps, depth, &block.NumObjectTypes))
1103                 return False;
1104         if(!prs_uint32("DefaultObject", ps, depth, &block.DefaultObject))
1105                 return False;
1106         if(!spoolss_io_system_time("SystemTime", ps, depth, &block.SystemTime))
1107                 return False;
1108         if(!prs_uint32("Padding", ps, depth, &block.Padding))
1109                 return False;
1110         if(!prs_align_uint64(ps))
1111                 return False;
1112         if(!prs_uint64("PerfTime", ps, depth, &block.PerfTime))
1113                 return False;
1114         if(!prs_uint64("PerfFreq", ps, depth, &block.PerfFreq))
1115                 return False;
1116         if(!prs_uint64("PerfTime100nSec", ps, depth, &block.PerfTime100nSec))
1117                 return False;
1118         if(!prs_uint32("SystemNameLength", ps, depth, &block.SystemNameLength))
1119                 return False;
1120         if(!prs_uint32("SystemNameOffset", ps, depth, &block.SystemNameOffset))
1121                 return False;
1122         /* hack to make sure we're 64-bit aligned at the end of this whole mess */
1123         if(!prs_uint8s(False, "SystemName", ps, depth, block.data,
1124                        block.HeaderLength - block.SystemNameOffset))
1125                 return False;
1126
1127         return True;
1128 }
1129
1130 /*********************************************************************
1131 *********************************************************************/
1132
1133 static BOOL _reg_perfcount_marshall_perf_counters(prs_struct *ps,
1134                                                   PERF_OBJECT_TYPE object,
1135                                                   int depth)
1136 {
1137         int cnt;
1138         PERF_COUNTER_DEFINITION counter;
1139
1140         prs_debug(ps, depth, "", "_reg_perfcount_marshall_perf_counters");
1141         depth++;
1142
1143         for(cnt = 0; cnt < object.NumCounters; cnt++)
1144         {
1145                 counter = object.counters[cnt];
1146
1147                 if(!prs_align(ps))
1148                         return False;
1149                 if(!prs_uint32("ByteLength", ps, depth, &counter.ByteLength))
1150                         return False;
1151                 if(!prs_uint32("CounterNameTitleIndex", ps, depth, &counter.CounterNameTitleIndex))
1152                         return False;
1153                 if(!prs_uint32("CounterNameTitlePointer", ps, depth, &counter.CounterNameTitlePointer))
1154                         return False;
1155                 if(!prs_uint32("CounterHelpTitleIndex", ps, depth, &counter.CounterHelpTitleIndex))
1156                         return False;
1157                 if(!prs_uint32("CounterHelpTitlePointer", ps, depth, &counter.CounterHelpTitlePointer))
1158                         return False;
1159                 if(!prs_uint32("DefaultScale", ps, depth, &counter.DefaultScale))
1160                         return False;
1161                 if(!prs_uint32("DetailLevel", ps, depth, &counter.DetailLevel))
1162                         return False;
1163                 if(!prs_uint32("CounterType", ps, depth, &counter.CounterType))
1164                         return False;
1165                 if(!prs_uint32("CounterSize", ps, depth, &counter.CounterSize))
1166                         return False;
1167                 if(!prs_uint32("CounterOffset", ps, depth, &counter.CounterOffset))
1168                         return False;
1169         }
1170
1171         return True;
1172 }
1173
1174 /*********************************************************************
1175 *********************************************************************/
1176
1177 static BOOL _reg_perfcount_marshall_perf_counter_data(prs_struct *ps,
1178                                                       PERF_COUNTER_BLOCK counter_data,
1179                                                       int depth)
1180 {
1181         prs_debug(ps, depth, "", "_reg_perfcount_marshall_perf_counter_data");
1182         depth++;
1183
1184         if(!prs_align_uint64(ps))
1185                 return False;
1186
1187         if(!prs_uint32("ByteLength", ps, depth, &counter_data.ByteLength))
1188                 return False;
1189         if(!prs_uint8s(False, "CounterData", ps, depth, counter_data.data, counter_data.ByteLength - sizeof(uint32)))
1190                 return False;
1191         if(!prs_align_uint64(ps))
1192                 return False;
1193
1194         return True;
1195 }
1196
1197 /*********************************************************************
1198 *********************************************************************/
1199
1200 static BOOL _reg_perfcount_marshall_perf_instances(prs_struct *ps,
1201                                                    PERF_OBJECT_TYPE object,
1202                                                    int depth)
1203 {
1204         PERF_INSTANCE_DEFINITION instance;
1205         int inst;
1206
1207         prs_debug(ps, depth, "", "_reg_perfcount_marshall_perf_instances");
1208         depth++;
1209
1210         for(inst = 0; inst < object.NumInstances; inst++)
1211         {
1212                 instance = object.instances[inst];
1213
1214                 if(!prs_align(ps))
1215                         return False;
1216                 if(!prs_uint32("ByteLength", ps, depth, &instance.ByteLength))
1217                         return False;
1218                 if(!prs_uint32("ParentObjectTitleIndex", ps, depth, &instance.ParentObjectTitleIndex))
1219                         return False;
1220                 if(!prs_uint32("ParentObjectTitlePointer", ps, depth, &instance.ParentObjectTitlePointer))
1221                         return False;
1222                 if(!prs_uint32("UniqueID", ps, depth, &instance.UniqueID))
1223                         return False;
1224                 if(!prs_uint32("NameOffset", ps, depth, &instance.NameOffset))
1225                         return False;
1226                 if(!prs_uint32("NameLength", ps, depth, &instance.NameLength))
1227                         return False;
1228                 if(!prs_uint8s(False, "InstanceName", ps, depth, instance.data,
1229                                instance.ByteLength - instance.NameOffset))
1230                         return False;
1231                 if(_reg_perfcount_marshall_perf_counter_data(ps, instance.counter_data, depth) == False)
1232                         return False;
1233         }
1234
1235         return True;
1236 }
1237
1238 /*********************************************************************
1239 *********************************************************************/
1240
1241 static BOOL _reg_perfcount_marshall_perf_objects(prs_struct *ps, PERF_DATA_BLOCK block, int depth)
1242 {
1243         int obj;
1244
1245         PERF_OBJECT_TYPE object;
1246
1247         prs_debug(ps, depth, "", "_reg_perfcount_marshall_perf_objects");
1248         depth++;
1249
1250         for(obj = 0; obj < block.NumObjectTypes; obj++)
1251         {
1252                 object = block.objects[obj];
1253
1254                 if(!prs_align(ps))
1255                         return False;
1256
1257                 if(!prs_uint32("TotalByteLength", ps, depth, &object.TotalByteLength))
1258                         return False;
1259                 if(!prs_uint32("DefinitionLength", ps, depth, &object.DefinitionLength))
1260                         return False;
1261                 if(!prs_uint32("HeaderLength", ps, depth, &object.HeaderLength))
1262                         return False;
1263                 if(!prs_uint32("ObjectNameTitleIndex", ps, depth, &object.ObjectNameTitleIndex))
1264                         return False;
1265                 if(!prs_uint32("ObjectNameTitlePointer", ps, depth, &object.ObjectNameTitlePointer))
1266                         return False;
1267                 if(!prs_uint32("ObjectHelpTitleIndex", ps, depth, &object.ObjectHelpTitleIndex))
1268                         return False;
1269                 if(!prs_uint32("ObjectHelpTitlePointer", ps, depth, &object.ObjectHelpTitlePointer))
1270                         return False;
1271                 if(!prs_uint32("DetailLevel", ps, depth, &object.DetailLevel))
1272                         return False;
1273                 if(!prs_uint32("NumCounters", ps, depth, &object.NumCounters))
1274                         return False;
1275                 if(!prs_uint32("DefaultCounter", ps, depth, &object.DefaultCounter))
1276                         return False;
1277                 if(!prs_uint32("NumInstances", ps, depth, &object.NumInstances))
1278                         return False;
1279                 if(!prs_uint32("CodePage", ps, depth, &object.CodePage))
1280                         return False;
1281                 if(!prs_align_uint64(ps))
1282                         return False;
1283                 if(!prs_uint64("PerfTime", ps, depth, &object.PerfTime))
1284                         return False;
1285                 if(!prs_uint64("PerfFreq", ps, depth, &object.PerfFreq))
1286                         return False;
1287
1288                 /* Now do the counters */
1289                 /* If no instances, encode counter_data */
1290                 /* If instances, encode instace plus counter data for each instance */
1291                 if(_reg_perfcount_marshall_perf_counters(ps, object, depth) == False)
1292                         return False;
1293                 if(object.NumInstances == PERF_NO_INSTANCES)
1294                 {
1295                         if(_reg_perfcount_marshall_perf_counter_data(ps, object.counter_data, depth) == False)
1296                                 return False;
1297                 }
1298                 else
1299                 {
1300                         if(_reg_perfcount_marshall_perf_instances(ps, object, depth) == False)
1301                                 return False;
1302                 }
1303         }
1304
1305         return True;
1306 }
1307
1308 /*********************************************************************
1309 *********************************************************************/
1310
1311 static BOOL _reg_perfcount_marshall_hkpd(prs_struct *ps, PERF_DATA_BLOCK block)
1312 {
1313         int depth = 0;
1314         if(_reg_perfcount_marshall_perf_data_block(ps, block, depth) == True)
1315         {
1316                 if(_reg_perfcount_marshall_perf_objects(ps, block, depth) == True)
1317                         return True;
1318         }
1319         return False;
1320 }
1321
1322 /*********************************************************************
1323 *********************************************************************/
1324
1325 WERROR reg_perfcount_get_hkpd(prs_struct *ps, uint32 max_buf_size, uint32 *outbuf_len, const char *object_ids)
1326 {
1327         /*
1328          * For a detailed description of the layout of this structure,
1329          * see http://msdn.microsoft.com/library/default.asp?url=/library/en-us/perfmon/base/performance_data_format.asp
1330          *
1331          * By 2006-11-23 this link did not work anymore, I found something
1332          * promising under
1333          * http://msdn2.microsoft.com/en-us/library/aa373105.aspx -- vl
1334          */
1335         PERF_DATA_BLOCK block;
1336         uint32 buffer_size, base_index;
1337
1338         buffer_size = 0;
1339         base_index = reg_perfcount_get_base_index();
1340         ZERO_STRUCT(block);
1341
1342         buffer_size = reg_perfcount_get_perf_data_block(base_index, ps, &block, object_ids);
1343
1344         if(buffer_size < max_buf_size)
1345         {
1346                 *outbuf_len = buffer_size;
1347                 if(_reg_perfcount_marshall_hkpd(ps, block) == True)
1348                         return WERR_OK;
1349                 else
1350                         return WERR_NOMEM;
1351         }
1352         else
1353         {
1354                 *outbuf_len = max_buf_size;
1355                 _reg_perfcount_marshall_perf_data_block(ps, block, 0);
1356                 return WERR_INSUFFICIENT_BUFFER;
1357         }
1358 }