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, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22 #include "includes.h"
  23 #include "system/filesys.h"
  24 #include "../librpc/gen_ndr/perfcount.h"
  25 #include "registry.h"
  26 #include "reg_perfcount.h"
  27 #include "../libcli/registry/util_reg.h"
  28 #include "util_tdb.h"
  29
  30 #undef DBGC_CLASS
  31 #define DBGC_CLASS DBGC_REGISTRY
  32
  33 #define PERFCOUNT_MAX_LEN 256
  34
  35 #define PERFCOUNTDIR    "perfmon"
  36 #define NAMES_DB        "names.tdb"
  37 #define DATA_DB         "data.tdb"
  38
  39 struct PERF_OBJECT_TYPE *_reg_perfcount_find_obj(struct PERF_DATA_BLOCK *block, int objind);
  40
  41 /*********************************************************************
  42 *********************************************************************/
  43
  44 static char *counters_directory(const char *dbname)
  45 {
  46         char *path = NULL;
  47         char *ret = NULL;
  48         TALLOC_CTX *ctx = talloc_tos();
  49
  50         path = state_path(PERFCOUNTDIR);
  51         if (!directory_exist(path)) {
  52                 mkdir(path, 0755);
  53         }
  54
  55         path = talloc_asprintf(ctx, "%s/%s", PERFCOUNTDIR, dbname);
  56         if (!path) {
  57                 return NULL;
  58         }
  59
  60         ret = talloc_strdup(ctx, state_path(path));
  61         TALLOC_FREE(path);
  62         return ret;
  63 }
  64
  65 /*********************************************************************
  66 *********************************************************************/
  67
  68 uint32 reg_perfcount_get_base_index(void)
  69 {
  70         const char *fname = counters_directory( NAMES_DB );
  71         TDB_CONTEXT *names;
  72         TDB_DATA kbuf, dbuf;
  73         char key[] = "1";
  74         uint32 retval = 0;
  75         char buf[PERFCOUNT_MAX_LEN];
  76
  77         names = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDONLY, 0444);
  78
  79         if ( !names ) {
  80                 DEBUG(1, ("reg_perfcount_get_base_index: unable to open [%s].\n", fname));
  81                 return 0;
  82         }
  83         /* needs to read the value of key "1" from the counter_names.tdb file, as that is
  84            where the total number of counters is stored. We're assuming no holes in the
  85            enumeration.
  86            The format for the counter_names.tdb file is:
  87            key        value
  88            1          num_counters
  89            2          perf_counter1
  90            3          perf_counter1_help
  91            4          perf_counter2
  92            5          perf_counter2_help
  93            even_num   perf_counter<even_num>
  94            even_num+1 perf_counter<even_num>_help
  95            and so on.
  96            So last_counter becomes num_counters*2, and last_help will be last_counter+1 */
  97         kbuf = string_tdb_data(key);
  98         dbuf = tdb_fetch(names, kbuf);
  99         if(dbuf.dptr == NULL)
 100         {
 101                 DEBUG(1, ("reg_perfcount_get_base_index: failed to find key \'1\' in [%s].\n", fname));
 102                 tdb_close(names);
 103                 return 0;
 104         }
 105         else
 106         {
 107                 tdb_close(names);
 108                 memset(buf, 0, PERFCOUNT_MAX_LEN);
 109                 memcpy(buf, dbuf.dptr, dbuf.dsize);
 110                 retval = (uint32)atoi(buf);
 111                 SAFE_FREE(dbuf.dptr);
 112                 return retval;
 113         }
 114         return 0;
 115 }
 116
 117 /*********************************************************************
 118 *********************************************************************/
 119
 120 uint32 reg_perfcount_get_last_counter(uint32 base_index)
 121 {
 122         uint32 retval;
 123
 124         if(base_index == 0)
 125                 retval = 0;
 126         else
 127                 retval = base_index * 2;
 128
 129         return retval;
 130 }
 131
 132 /*********************************************************************
 133 *********************************************************************/
 134
 135 uint32 reg_perfcount_get_last_help(uint32 last_counter)
 136 {
 137         uint32 retval;
 138
 139         if(last_counter == 0)
 140                 retval = 0;
 141         else
 142                 retval = last_counter + 1;
 143
 144         return retval;
 145 }
 146
 147
 148 /*********************************************************************
 149 *********************************************************************/
 150
 151 static uint32 _reg_perfcount_multi_sz_from_tdb(TDB_CONTEXT *tdb,
 152                                                int keyval,
 153                                                char **retbuf,
 154                                                uint32 buffer_size)
 155 {
 156         TDB_DATA kbuf, dbuf;
 157         char temp[256];
 158         char *buf1 = *retbuf;
 159         uint32 working_size = 0;
 160         DATA_BLOB name_index, name;
 161
 162         memset(temp, 0, sizeof(temp));
 163         snprintf(temp, sizeof(temp), "%d", keyval);
 164         kbuf = string_tdb_data(temp);
 165         dbuf = tdb_fetch(tdb, kbuf);
 166         if(dbuf.dptr == NULL)
 167         {
 168                 /* If a key isn't there, just bypass it -- this really shouldn't
 169                    happen unless someone's mucking around with the tdb */
 170                 DEBUG(3, ("_reg_perfcount_multi_sz_from_tdb: failed to find key [%s] in [%s].\n",
 171                           temp, tdb_name(tdb)));
 172                 return buffer_size;
 173         }
 174         /* First encode the name_index */
 175         working_size = (kbuf.dsize + 1)*sizeof(uint16);
 176         buf1 = (char *)SMB_REALLOC(buf1, buffer_size + working_size);
 177         if(!buf1) {
 178                 buffer_size = 0;
 179                 return buffer_size;
 180         }
 181         push_reg_sz(talloc_tos(), &name_index, (const char *)kbuf.dptr);
 182         memcpy(buf1+buffer_size, (char *)name_index.data, working_size);
 183         buffer_size += working_size;
 184         /* Now encode the actual name */
 185         working_size = (dbuf.dsize + 1)*sizeof(uint16);
 186         buf1 = (char *)SMB_REALLOC(buf1, buffer_size + working_size);
 187         if(!buf1) {
 188                 buffer_size = 0;
 189                 return buffer_size;
 190         }
 191         memset(temp, 0, sizeof(temp));
 192         memcpy(temp, dbuf.dptr, dbuf.dsize);
 193         SAFE_FREE(dbuf.dptr);
 194         push_reg_sz(talloc_tos(), &name, temp);
 195         memcpy(buf1+buffer_size, (char *)name.data, working_size);
 196         buffer_size += working_size;
 197
 198         *retbuf = buf1;
 199
 200         return buffer_size;
 201 }
 202
 203 /*********************************************************************
 204 *********************************************************************/
 205
 206 uint32 reg_perfcount_get_counter_help(uint32 base_index, char **retbuf)
 207 {
 208         char *buf1 = NULL;
 209         uint32 buffer_size = 0;
 210         TDB_CONTEXT *names;
 211         const char *fname = counters_directory( NAMES_DB );
 212         int i;
 213
 214         if(base_index == 0)
 215                 return 0;
 216
 217         names = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDONLY, 0444);
 218
 219         if(names == NULL)
 220         {
 221                 DEBUG(1, ("reg_perfcount_get_counter_help: unable to open [%s].\n", fname));
 222                 return 0;
 223         }
 224
 225         for(i = 1; i <= base_index; i++)
 226         {
 227                 buffer_size = _reg_perfcount_multi_sz_from_tdb(names, (i*2)+1, retbuf, buffer_size);
 228         }
 229         tdb_close(names);
 230
 231         /* Now terminate the MULTI_SZ with a double unicode NULL */
 232         buf1 = *retbuf;
 233         buf1 = (char *)SMB_REALLOC(buf1, buffer_size + 2);
 234         if(!buf1) {
 235                 buffer_size = 0;
 236         } else {
 237                 buf1[buffer_size++] = '\0';
 238                 buf1[buffer_size++] = '\0';
 239         }
 240
 241         *retbuf = buf1;
 242
 243         return buffer_size;
 244 }
 245
 246 /*********************************************************************
 247 *********************************************************************/
 248
 249 uint32 reg_perfcount_get_counter_names(uint32 base_index, char **retbuf)
 250 {
 251         char *buf1 = NULL;
 252         uint32 buffer_size = 0;
 253         TDB_CONTEXT *names;
 254         const char *fname = counters_directory( NAMES_DB );
 255         int i;
 256
 257         if(base_index == 0)
 258                 return 0;
 259
 260         names = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDONLY, 0444);
 261
 262         if(names == NULL)
 263         {
 264                 DEBUG(1, ("reg_perfcount_get_counter_names: unable to open [%s].\n", fname));
 265                 return 0;
 266         }
 267
 268         buffer_size = _reg_perfcount_multi_sz_from_tdb(names, 1, retbuf, buffer_size);
 269
 270         for(i = 1; i <= base_index; i++)
 271         {
 272                 buffer_size = _reg_perfcount_multi_sz_from_tdb(names, i*2, retbuf, buffer_size);
 273         }
 274         tdb_close(names);
 275
 276         /* Now terminate the MULTI_SZ with a double unicode NULL */
 277         buf1 = *retbuf;
 278         buf1 = (char *)SMB_REALLOC(buf1, buffer_size + 2);
 279         if(!buf1) {
 280                 buffer_size = 0;
 281         } else {
 282                 buf1[buffer_size++] = '\0';
 283                 buf1[buffer_size++] = '\0';
 284         }
 285
 286         *retbuf=buf1;
 287
 288         return buffer_size;
 289 }
 290
 291 /*********************************************************************
 292 *********************************************************************/
 293
 294 static void _reg_perfcount_make_key(TDB_DATA *key,
 295                                     char *buf,
 296                                     int buflen,
 297                                     int key_part1,
 298                                     const char *key_part2)
 299 {
 300         memset(buf, 0, buflen);
 301         if(key_part2 != NULL)
 302                 snprintf(buf, buflen,"%d%s", key_part1, key_part2);
 303         else
 304                 snprintf(buf, buflen, "%d", key_part1);
 305
 306         *key = string_tdb_data(buf);
 307
 308         return;
 309 }
 310
 311 /*********************************************************************
 312 *********************************************************************/
 313
 314 static bool _reg_perfcount_isparent(TDB_DATA data)
 315 {
 316         if(data.dsize > 0)
 317         {
 318                 if(data.dptr[0] == 'p')
 319                         return True;
 320                 else
 321                         return False;
 322         }
 323         return False;
 324 }
 325
 326 /*********************************************************************
 327 *********************************************************************/
 328
 329 static bool _reg_perfcount_ischild(TDB_DATA data)
 330 {
 331         if(data.dsize > 0)
 332         {
 333                 if(data.dptr[0] == 'c')
 334                         return True;
 335                 else
 336                         return False;
 337         }
 338         return False;
 339 }
 340
 341 /*********************************************************************
 342 *********************************************************************/
 343
 344 static uint32 _reg_perfcount_get_numinst(int objInd, TDB_CONTEXT *names)
 345 {
 346         TDB_DATA key, data;
 347         char buf[PERFCOUNT_MAX_LEN];
 348
 349         _reg_perfcount_make_key(&key, buf, PERFCOUNT_MAX_LEN, objInd, "inst");
 350         data = tdb_fetch(names, key);
 351
 352         if(data.dptr == NULL)
 353                 return (uint32)PERF_NO_INSTANCES;
 354
 355         memset(buf, 0, PERFCOUNT_MAX_LEN);
 356         memcpy(buf, data.dptr, data.dsize);
 357         SAFE_FREE(data.dptr);
 358         return (uint32)atoi(buf);
 359 }
 360
 361 /*********************************************************************
 362 *********************************************************************/
 363
 364 static bool _reg_perfcount_add_instance(struct PERF_OBJECT_TYPE *obj,
 365                                         TALLOC_CTX *mem_ctx,
 366                                         int instInd,
 367                                         TDB_CONTEXT *names);
 368
 369 static bool _reg_perfcount_add_object(struct PERF_DATA_BLOCK *block,
 370                                       TALLOC_CTX *mem_ctx,
 371                                       int num,
 372                                       TDB_DATA data,
 373                                       TDB_CONTEXT *names)
 374 {
 375         int i;
 376         bool success = True;
 377         struct PERF_OBJECT_TYPE *obj;
 378
 379         block->objects = (struct PERF_OBJECT_TYPE *)TALLOC_REALLOC_ARRAY(mem_ctx,
 380                                                                   block->objects,
 381                                                                   struct PERF_OBJECT_TYPE,
 382                                                                   block->NumObjectTypes+1);
 383         if(block->objects == NULL)
 384                 return False;
 385         obj = &(block->objects[block->NumObjectTypes]);
 386         memset((void *)&(block->objects[block->NumObjectTypes]), 0, sizeof(struct PERF_OBJECT_TYPE));
 387         block->objects[block->NumObjectTypes].ObjectNameTitleIndex = num;
 388         block->objects[block->NumObjectTypes].ObjectNameTitlePointer = 0;
 389         block->objects[block->NumObjectTypes].ObjectHelpTitleIndex = num+1;
 390         block->objects[block->NumObjectTypes].ObjectHelpTitlePointer = 0;
 391         block->objects[block->NumObjectTypes].NumCounters = 0;
 392         block->objects[block->NumObjectTypes].DefaultCounter = 0;
 393         block->objects[block->NumObjectTypes].NumInstances = _reg_perfcount_get_numinst(num, names);
 394         block->objects[block->NumObjectTypes].counters = NULL;
 395         block->objects[block->NumObjectTypes].instances = NULL;
 396         block->objects[block->NumObjectTypes].counter_data.ByteLength = sizeof(uint32);
 397         block->objects[block->NumObjectTypes].counter_data.data = NULL;
 398         block->objects[block->NumObjectTypes].DetailLevel = PERF_DETAIL_NOVICE;
 399         block->NumObjectTypes+=1;
 400
 401         for(i = 0; i < (int)obj->NumInstances; i++) {
 402                 success = _reg_perfcount_add_instance(obj, mem_ctx, i, names);
 403         }
 404
 405         return success;
 406 }
 407
 408 /*********************************************************************
 409 *********************************************************************/
 410
 411 static bool _reg_perfcount_get_counter_data(TDB_DATA key, TDB_DATA *data)
 412 {
 413         TDB_CONTEXT *counters;
 414         const char *fname = counters_directory( DATA_DB );
 415
 416         counters = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDONLY, 0444);
 417
 418         if(counters == NULL)
 419         {
 420                 DEBUG(1, ("reg_perfcount_get_counter_data: unable to open [%s].\n", fname));
 421                 return False;
 422         }
 423
 424         *data = tdb_fetch(counters, key);
 425
 426         tdb_close(counters);
 427
 428         return True;
 429 }
 430
 431 /*********************************************************************
 432 *********************************************************************/
 433
 434 static uint32 _reg_perfcount_get_size_field(uint32 CounterType)
 435 {
 436         uint32 retval;
 437
 438         retval = CounterType;
 439
 440         /* First mask out reserved lower 8 bits */
 441         retval = retval & 0xFFFFFF00;
 442         retval = retval << 22;
 443         retval = retval >> 22;
 444
 445         return retval;
 446 }
 447
 448 /*********************************************************************
 449 *********************************************************************/
 450
 451 static uint32 _reg_perfcount_compute_scale(int64_t data)
 452 {
 453         int scale = 0;
 454         if(data == 0)
 455                 return scale;
 456         while(data > 100)
 457         {
 458                 data /= 10;
 459                 scale--;
 460         }
 461         while(data < 10)
 462         {
 463                 data *= 10;
 464                 scale++;
 465         }
 466
 467         return (uint32)scale;
 468 }
 469
 470 /*********************************************************************
 471 *********************************************************************/
 472
 473 static bool _reg_perfcount_get_counter_info(struct PERF_DATA_BLOCK *block,
 474                                             TALLOC_CTX *mem_ctx,
 475                                             int CounterIndex,
 476                                             struct PERF_OBJECT_TYPE *obj,
 477                                             TDB_CONTEXT *names)
 478 {
 479         TDB_DATA key, data;
 480         char buf[PERFCOUNT_MAX_LEN];
 481         size_t dsize, padding;
 482         long int data32, dbuf[2];
 483         int64_t data64;
 484         uint32 counter_size;
 485
 486         obj->counters[obj->NumCounters].DefaultScale = 0;
 487         dbuf[0] = dbuf[1] = 0;
 488         padding = 0;
 489
 490         _reg_perfcount_make_key(&key, buf, PERFCOUNT_MAX_LEN, CounterIndex, "type");
 491         data = tdb_fetch(names, key);
 492         if(data.dptr == NULL)
 493         {
 494                 DEBUG(3, ("_reg_perfcount_get_counter_info: No type data for counter [%d].\n", CounterIndex));
 495                 return False;
 496         }
 497         memset(buf, 0, PERFCOUNT_MAX_LEN);
 498         memcpy(buf, data.dptr, data.dsize);
 499         obj->counters[obj->NumCounters].CounterType = atoi(buf);
 500         DEBUG(10, ("_reg_perfcount_get_counter_info: Got type [%d] for counter [%d].\n",
 501                    obj->counters[obj->NumCounters].CounterType, CounterIndex));
 502         SAFE_FREE(data.dptr);
 503
 504         /* Fetch the actual data */
 505         _reg_perfcount_make_key(&key, buf, PERFCOUNT_MAX_LEN, CounterIndex, "");
 506         _reg_perfcount_get_counter_data(key, &data);
 507         if(data.dptr == NULL)
 508         {
 509                 DEBUG(3, ("_reg_perfcount_get_counter_info: No counter data for counter [%d].\n", CounterIndex));
 510                 return False;
 511         }
 512
 513         counter_size = _reg_perfcount_get_size_field(obj->counters[obj->NumCounters].CounterType);
 514
 515         if(counter_size == PERF_SIZE_DWORD)
 516         {
 517                 dsize = sizeof(data32);
 518                 memset(buf, 0, PERFCOUNT_MAX_LEN);
 519                 memcpy(buf, data.dptr, data.dsize);
 520                 data32 = strtol(buf, NULL, 0);
 521                 if((obj->counters[obj->NumCounters].CounterType & 0x00000F00) == PERF_TYPE_NUMBER)
 522                         obj->counters[obj->NumCounters].DefaultScale = _reg_perfcount_compute_scale((int64_t)data32);
 523                 else
 524                         obj->counters[obj->NumCounters].DefaultScale = 0;
 525                 dbuf[0] = data32;
 526                 padding = (dsize - (obj->counter_data.ByteLength%dsize)) % dsize;
 527         }
 528         else if(counter_size == PERF_SIZE_LARGE)
 529         {
 530                 dsize = sizeof(data64);
 531                 memset(buf, 0, PERFCOUNT_MAX_LEN);
 532                 memcpy(buf, data.dptr, data.dsize);
 533                 data64 = atof(buf);
 534                 if((obj->counters[obj->NumCounters].CounterType & 0x00000F00) == PERF_TYPE_NUMBER)
 535                         obj->counters[obj->NumCounters].DefaultScale = _reg_perfcount_compute_scale(data64);
 536                 else
 537                         obj->counters[obj->NumCounters].DefaultScale = 0;
 538                 memcpy((void *)dbuf, (const void *)&data64, dsize);
 539                 padding = (dsize - (obj->counter_data.ByteLength%dsize)) % dsize;
 540         }
 541         else /* PERF_SIZE_VARIABLE_LEN */
 542         {
 543                 dsize = data.dsize;
 544                 memset(buf, 0, PERFCOUNT_MAX_LEN);
 545                 memcpy(buf, data.dptr, data.dsize);
 546         }
 547         SAFE_FREE(data.dptr);
 548
 549         obj->counter_data.ByteLength += dsize + padding;
 550         obj->counter_data.data = TALLOC_REALLOC_ARRAY(mem_ctx,
 551                                                       obj->counter_data.data,
 552                                                       uint8,
 553                                                       obj->counter_data.ByteLength - sizeof(uint32));
 554         if(obj->counter_data.data == NULL)
 555                 return False;
 556         if(dbuf[0] != 0 || dbuf[1] != 0)
 557         {
 558                 memcpy((void *)(obj->counter_data.data +
 559                                 (obj->counter_data.ByteLength - (sizeof(uint32) + dsize))),
 560                        (const void *)dbuf, dsize);
 561         }
 562         else
 563         {
 564                 /* Handling PERF_SIZE_VARIABLE_LEN */
 565                 memcpy((void *)(obj->counter_data.data +
 566                                 (obj->counter_data.ByteLength - (sizeof(uint32) + dsize))),
 567                        (const void *)buf, dsize);
 568         }
 569         obj->counters[obj->NumCounters].CounterOffset = obj->counter_data.ByteLength - dsize;
 570         if(obj->counters[obj->NumCounters].CounterOffset % dsize != 0)
 571         {
 572                 DEBUG(3,("Improperly aligned counter [%d]\n", obj->NumCounters));
 573         }
 574         obj->counters[obj->NumCounters].CounterSize = dsize;
 575
 576         return True;
 577 }
 578
 579 /*********************************************************************
 580 *********************************************************************/
 581
 582 struct PERF_OBJECT_TYPE *_reg_perfcount_find_obj(struct PERF_DATA_BLOCK *block, int objind)
 583 {
 584         int i;
 585
 586         struct PERF_OBJECT_TYPE *obj = NULL;
 587
 588         for(i = 0; i < block->NumObjectTypes; i++)
 589         {
 590                 if(block->objects[i].ObjectNameTitleIndex == objind)
 591                 {
 592                         obj = &(block->objects[i]);
 593                 }
 594         }
 595
 596         return obj;
 597 }
 598
 599 /*********************************************************************
 600 *********************************************************************/
 601
 602 static bool _reg_perfcount_add_counter(struct PERF_DATA_BLOCK *block,
 603                                        TALLOC_CTX *mem_ctx,
 604                                        int num,
 605                                        TDB_DATA data,
 606                                        TDB_CONTEXT *names)
 607 {
 608         char *begin, *end, *start, *stop;
 609         int parent;
 610         struct PERF_OBJECT_TYPE *obj;
 611         bool success = True;
 612         char buf[PERFCOUNT_MAX_LEN];
 613
 614         obj = NULL;
 615         memset(buf, 0, PERFCOUNT_MAX_LEN);
 616         memcpy(buf, data.dptr, data.dsize);
 617         begin = strchr(buf, '[');
 618         end = strchr(buf, ']');
 619         if(begin == NULL || end == NULL)
 620                 return False;
 621         start = begin+1;
 622
 623         while(start < end) {
 624                 stop = strchr(start, ',');
 625                 if(stop == NULL)
 626                         stop = end;
 627                 *stop = '\0';
 628                 parent = atoi(start);
 629
 630                 obj = _reg_perfcount_find_obj(block, parent);
 631                 if(obj == NULL) {
 632                         /* At this point we require that the parent object exist.
 633                            This can probably be handled better at some later time */
 634                         DEBUG(3, ("_reg_perfcount_add_counter: Could not find parent object [%d] for counter [%d].\n",
 635                                   parent, num));
 636                         return False;
 637                 }
 638                 obj->counters = (struct PERF_COUNTER_DEFINITION *)TALLOC_REALLOC_ARRAY(mem_ctx,
 639                                                                                 obj->counters,
 640                                                                                 struct PERF_COUNTER_DEFINITION,
 641                                                                                 obj->NumCounters+1);
 642                 if(obj->counters == NULL)
 643                         return False;
 644                 memset((void *)&(obj->counters[obj->NumCounters]), 0, sizeof(struct PERF_COUNTER_DEFINITION));
 645                 obj->counters[obj->NumCounters].CounterNameTitleIndex=num;
 646                 obj->counters[obj->NumCounters].CounterHelpTitleIndex=num+1;
 647                 obj->counters[obj->NumCounters].DetailLevel = PERF_DETAIL_NOVICE;
 648                 obj->counters[obj->NumCounters].ByteLength = sizeof(struct PERF_COUNTER_DEFINITION);
 649                 success = _reg_perfcount_get_counter_info(block, mem_ctx, num, obj, names);
 650                 obj->NumCounters += 1;
 651                 start = stop + 1;
 652         }
 653
 654         /* Handle case of Objects/Counters without any counter data, which would suggest
 655            that the required instances are not there yet, so change NumInstances from
 656            PERF_NO_INSTANCES to 0 */
 657
 658         return success;
 659 }
 660
 661 /*********************************************************************
 662 *********************************************************************/
 663
 664 static bool _reg_perfcount_get_instance_info(struct PERF_INSTANCE_DEFINITION *inst,
 665                                              TALLOC_CTX *mem_ctx,
 666                                              int instId,
 667                                              struct PERF_OBJECT_TYPE *obj,
 668                                              TDB_CONTEXT *names)
 669 {
 670         TDB_DATA key, data;
 671         char buf[PERFCOUNT_MAX_LEN], temp[PERFCOUNT_MAX_LEN];
 672         smb_ucs2_t *name = NULL;
 673         int pad;
 674
 675         /* First grab the instance data from the data file */
 676         memset(temp, 0, PERFCOUNT_MAX_LEN);
 677         snprintf(temp, PERFCOUNT_MAX_LEN, "i%d", instId);
 678         _reg_perfcount_make_key(&key, buf, PERFCOUNT_MAX_LEN, obj->ObjectNameTitleIndex, temp);
 679         if (!_reg_perfcount_get_counter_data(key, &data)) {
 680                 DEBUG(3, ("_reg_perfcount_get_counter_data failed\n"));
 681                 return false;
 682         }
 683         if(data.dptr == NULL)
 684         {
 685                 DEBUG(3, ("_reg_perfcount_get_instance_info: No instance data for instance [%s].\n",
 686                           buf));
 687                 return False;
 688         }
 689         inst->counter_data.ByteLength = data.dsize + sizeof(inst->counter_data.ByteLength);
 690         inst->counter_data.data = TALLOC_REALLOC_ARRAY(mem_ctx,
 691                                                        inst->counter_data.data,
 692                                                        uint8,
 693                                                        data.dsize);
 694         if(inst->counter_data.data == NULL)
 695                 return False;
 696         memset(inst->counter_data.data, 0, data.dsize);
 697         memcpy(inst->counter_data.data, data.dptr, data.dsize);
 698         SAFE_FREE(data.dptr);
 699
 700         /* Fetch instance name */
 701         memset(temp, 0, PERFCOUNT_MAX_LEN);
 702         snprintf(temp, PERFCOUNT_MAX_LEN, "i%dname", instId);
 703         _reg_perfcount_make_key(&key, buf, PERFCOUNT_MAX_LEN, obj->ObjectNameTitleIndex, temp);
 704         data = tdb_fetch(names, key);
 705         if(data.dptr == NULL)
 706         {
 707                 /* Not actually an error, but possibly unintended? -- just logging FYI */
 708                 DEBUG(3, ("_reg_perfcount_get_instance_info: No instance name for instance [%s].\n",
 709                           buf));
 710                 inst->NameLength = 0;
 711         }
 712         else
 713         {
 714                 memset(buf, 0, PERFCOUNT_MAX_LEN);
 715                 memcpy(buf, data.dptr, MIN(PERFCOUNT_MAX_LEN-1,data.dsize));
 716                 buf[PERFCOUNT_MAX_LEN-1] = '\0';
 717                 inst->NameLength = rpcstr_push_talloc(mem_ctx, &name, buf);
 718                 if (inst->NameLength == (uint32_t)-1 || !name) {
 719                         SAFE_FREE(data.dptr);
 720                         return False;
 721                 }
 722                 inst->data = TALLOC_REALLOC_ARRAY(mem_ctx,
 723                                                   inst->data,
 724                                                   uint8,
 725                                                   inst->NameLength);
 726                 if (inst->data == NULL) {
 727                         SAFE_FREE(data.dptr);
 728                         return False;
 729                 }
 730                 memcpy(inst->data, name, inst->NameLength);
 731                 SAFE_FREE(data.dptr);
 732         }
 733
 734         inst->ParentObjectTitleIndex = 0;
 735         inst->ParentObjectTitlePointer = 0;
 736         inst->UniqueID = PERF_NO_UNIQUE_ID;
 737         inst->NameOffset = 6 * sizeof(uint32);
 738
 739         inst->ByteLength = inst->NameOffset + inst->NameLength;
 740         /* Need to be aligned on a 64-bit boundary here for counter_data */
 741         if((pad = (inst->ByteLength % 8)))
 742         {
 743                 pad = 8 - pad;
 744                 inst->data = TALLOC_REALLOC_ARRAY(mem_ctx,
 745                                                   inst->data,
 746                                                   uint8,
 747                                                   inst->NameLength + pad);
 748                 memset(inst->data + inst->NameLength, 0, pad);
 749                 inst->ByteLength += pad;
 750         }
 751
 752         return True;
 753 }
 754
 755 /*********************************************************************
 756 *********************************************************************/
 757
 758 static bool _reg_perfcount_add_instance(struct PERF_OBJECT_TYPE *obj,
 759                                         TALLOC_CTX *mem_ctx,
 760                                         int instInd,
 761                                         TDB_CONTEXT *names)
 762 {
 763         struct PERF_INSTANCE_DEFINITION *inst;
 764
 765         if(obj->instances == NULL) {
 766                 obj->instances = TALLOC_REALLOC_ARRAY(mem_ctx,
 767                                                       obj->instances,
 768                                                       struct PERF_INSTANCE_DEFINITION,
 769                                                       obj->NumInstances);
 770         }
 771         if(obj->instances == NULL)
 772                 return False;
 773
 774         memset(&(obj->instances[instInd]), 0, sizeof(struct PERF_INSTANCE_DEFINITION));
 775         inst = &(obj->instances[instInd]);
 776         return _reg_perfcount_get_instance_info(inst, mem_ctx, instInd, obj, names);
 777 }
 778
 779 /*********************************************************************
 780 *********************************************************************/
 781
 782 static int _reg_perfcount_assemble_global(struct PERF_DATA_BLOCK *block,
 783                                           TALLOC_CTX *mem_ctx,
 784                                           int base_index,
 785                                           TDB_CONTEXT *names)
 786 {
 787         bool success;
 788         int i, j, retval = 0;
 789         char keybuf[PERFCOUNT_MAX_LEN];
 790         TDB_DATA key, data;
 791
 792         for(i = 1; i <= base_index; i++)
 793         {
 794                 j = i*2;
 795                 _reg_perfcount_make_key(&key, keybuf, PERFCOUNT_MAX_LEN, j, "rel");
 796                 data = tdb_fetch(names, key);
 797                 if(data.dptr != NULL)
 798                 {
 799                         if(_reg_perfcount_isparent(data))
 800                                 success = _reg_perfcount_add_object(block, mem_ctx, j, data, names);
 801                         else if(_reg_perfcount_ischild(data))
 802                                 success = _reg_perfcount_add_counter(block, mem_ctx, j, data, names);
 803                         else
 804                         {
 805                                 DEBUG(3, ("Bogus relationship [%s] for counter [%d].\n", data.dptr, j));
 806                                 success = False;
 807                         }
 808                         if(success == False)
 809                         {
 810                                 DEBUG(3, ("_reg_perfcount_assemble_global: Failed to add new relationship for counter [%d].\n", j));
 811                                 retval = -1;
 812                         }
 813                         SAFE_FREE(data.dptr);
 814                 }
 815                 else
 816                         DEBUG(3, ("NULL relationship for counter [%d] using key [%s].\n", j, keybuf));
 817         }
 818         return retval;
 819 }
 820
 821 /*********************************************************************
 822 *********************************************************************/
 823
 824 static bool _reg_perfcount_get_64(uint64_t *retval,
 825                                   TDB_CONTEXT *tdb,
 826                                   int key_part1,
 827                                   const char *key_part2)
 828 {
 829         TDB_DATA key, data;
 830         char buf[PERFCOUNT_MAX_LEN];
 831
 832         _reg_perfcount_make_key(&key, buf, PERFCOUNT_MAX_LEN, key_part1, key_part2);
 833
 834         data = tdb_fetch(tdb, key);
 835         if(data.dptr == NULL)
 836         {
 837                 DEBUG(3,("_reg_perfcount_get_64: No data found for key [%s].\n", key.dptr));
 838                 return False;
 839         }
 840
 841         memset(buf, 0, PERFCOUNT_MAX_LEN);
 842         memcpy(buf, data.dptr, data.dsize);
 843         SAFE_FREE(data.dptr);
 844
 845         *retval = atof(buf);
 846
 847         return True;
 848 }
 849
 850 /*********************************************************************
 851 *********************************************************************/
 852
 853 static bool _reg_perfcount_init_data_block_perf(struct PERF_DATA_BLOCK *block,
 854                                                 TDB_CONTEXT *names)
 855 {
 856         uint64_t PerfFreq, PerfTime, PerfTime100nSec;
 857         TDB_CONTEXT *counters;
 858         bool status = False;
 859         const char *fname = counters_directory( DATA_DB );
 860
 861         counters = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDONLY, 0444);
 862
 863         if(counters == NULL)
 864         {
 865                 DEBUG(1, ("reg_perfcount_init_data_block_perf: unable to open [%s].\n", fname));
 866                 return False;
 867         }
 868
 869         status = _reg_perfcount_get_64(&PerfFreq, names, 0, "PerfFreq");
 870         if(status == False)
 871         {
 872                 tdb_close(counters);
 873                 return status;
 874         }
 875         memcpy((void *)&(block->PerfFreq), (const void *)&PerfFreq, sizeof(PerfFreq));
 876
 877         status = _reg_perfcount_get_64(&PerfTime, counters, 0, "PerfTime");
 878         if(status == False)
 879         {
 880                 tdb_close(counters);
 881                 return status;
 882         }
 883         memcpy((void *)&(block->PerfTime), (const void *)&PerfTime, sizeof(PerfTime));
 884
 885         status = _reg_perfcount_get_64(&PerfTime100nSec, counters, 0, "PerfTime100nSec");
 886         if(status == False)
 887         {
 888                 tdb_close(counters);
 889                 return status;
 890         }
 891         memcpy((void *)&(block->PerfTime100nSec), (const void *)&PerfTime100nSec, sizeof(PerfTime100nSec));
 892
 893         tdb_close(counters);
 894         return True;
 895 }
 896
 897 /*******************************************************************
 898 ********************************************************************/
 899
 900 static bool make_systemtime(struct SYSTEMTIME *systime, struct tm *unixtime)
 901 {
 902         systime->year=unixtime->tm_year+1900;
 903         systime->month=unixtime->tm_mon+1;
 904         systime->dayofweek=unixtime->tm_wday;
 905         systime->day=unixtime->tm_mday;
 906         systime->hour=unixtime->tm_hour;
 907         systime->minute=unixtime->tm_min;
 908         systime->second=unixtime->tm_sec;
 909         systime->milliseconds=0;
 910
 911         return True;
 912 }
 913
 914 /*********************************************************************
 915 *********************************************************************/
 916
 917 static bool _reg_perfcount_init_data_block(struct PERF_DATA_BLOCK *block,
 918                                            TALLOC_CTX *mem_ctx, TDB_CONTEXT *names,
 919                                            bool bigendian_data)
 920 {
 921         smb_ucs2_t *temp = NULL;
 922         time_t tm;
 923
 924         if (rpcstr_push_talloc(mem_ctx, &temp, "PERF")==(size_t)-1) {
 925                 return false;
 926         }
 927         if (!temp) {
 928                 return false;
 929         }
 930         memcpy(block->Signature, temp, strlen_w(temp) *2);
 931
 932         if(bigendian_data)
 933                 block->LittleEndian = 0;
 934         else
 935                 block->LittleEndian = 1;
 936         block->Version = 1;
 937         block->Revision = 1;
 938         block->TotalByteLength = 0;
 939         block->NumObjectTypes = 0;
 940         block->DefaultObject = -1;
 941         block->objects = NULL;
 942         tm = time(NULL);
 943         make_systemtime(&(block->SystemTime), gmtime(&tm));
 944         _reg_perfcount_init_data_block_perf(block, names);
 945         memset(temp, 0, sizeof(temp));
 946         rpcstr_push((void *)temp, global_myname(), sizeof(temp), STR_TERMINATE);
 947         block->SystemNameLength = (strlen_w(temp) * 2) + 2;
 948         block->data = TALLOC_ZERO_ARRAY(mem_ctx, uint8, block->SystemNameLength + (8 - (block->SystemNameLength % 8)));
 949         if (block->data == NULL) {
 950                 return False;
 951         }
 952         memcpy(block->data, temp, block->SystemNameLength);
 953         block->SystemNameOffset = sizeof(struct PERF_DATA_BLOCK) - sizeof(block->objects) - sizeof(block->data);
 954         block->HeaderLength = block->SystemNameOffset + block->SystemNameLength;
 955         /* Make sure to adjust for 64-bit alignment for when we finish writing the system name,
 956            so that the PERF_OBJECT_TYPE struct comes out 64-bit aligned */
 957         block->HeaderLength += 8 - (block->HeaderLength % 8);
 958
 959         return True;
 960 }
 961
 962 /*********************************************************************
 963 *********************************************************************/
 964
 965 static uint32 _reg_perfcount_perf_data_block_fixup(struct PERF_DATA_BLOCK *block, TALLOC_CTX *mem_ctx)
 966 {
 967         int obj, cnt, inst, pad, i;
 968         struct PERF_OBJECT_TYPE *object;
 969         struct PERF_INSTANCE_DEFINITION *instance;
 970         struct PERF_COUNTER_DEFINITION *counter;
 971         struct PERF_COUNTER_BLOCK *counter_data;
 972         char *temp = NULL, *src_addr, *dst_addr;
 973
 974         block->TotalByteLength = 0;
 975         object = block->objects;
 976         for(obj = 0; obj < block->NumObjectTypes; obj++)
 977         {
 978                 object[obj].TotalByteLength = 0;
 979                 object[obj].DefinitionLength = 0;
 980                 instance = object[obj].instances;
 981                 counter = object[obj].counters;
 982                 for(cnt = 0; cnt < object[obj].NumCounters; cnt++)
 983                 {
 984                         object[obj].TotalByteLength += counter[cnt].ByteLength;
 985                         object[obj].DefinitionLength += counter[cnt].ByteLength;
 986                 }
 987                 if(object[obj].NumInstances != PERF_NO_INSTANCES)
 988                 {
 989                         for(inst = 0; inst < object[obj].NumInstances; inst++)
 990                         {
 991                                 instance = &(object[obj].instances[inst]);
 992                                 object[obj].TotalByteLength += instance->ByteLength;
 993                                 counter_data = &(instance->counter_data);
 994                                 counter = &(object[obj].counters[object[obj].NumCounters - 1]);
 995                                 counter_data->ByteLength = counter->CounterOffset + counter->CounterSize + sizeof(counter_data->ByteLength);
 996                                 temp = TALLOC_REALLOC_ARRAY(mem_ctx,
 997                                                             temp,
 998                                                             char,
 999                                                             counter_data->ByteLength- sizeof(counter_data->ByteLength));
1000                                 if (temp == NULL) {
1001                                         return 0;
1002                                 }
1003                                 memset(temp, 0, counter_data->ByteLength - sizeof(counter_data->ByteLength));
1004                                 src_addr = (char *)counter_data->data;
1005                                 for(i = 0; i < object[obj].NumCounters; i++)
1006                                 {
1007                                         counter = &(object[obj].counters[i]);
1008                                         dst_addr = temp + counter->CounterOffset - sizeof(counter_data->ByteLength);
1009                                         memcpy(dst_addr, src_addr, counter->CounterSize);
1010                                         src_addr += counter->CounterSize;
1011                                 }
1012                                 /* Make sure to be 64-bit aligned */
1013                                 if((pad = (counter_data->ByteLength % 8)))
1014                                 {
1015                                         pad = 8 - pad;
1016                                 }
1017                                 counter_data->data = TALLOC_REALLOC_ARRAY(mem_ctx,
1018                                                                          counter_data->data,
1019                                                                          uint8,
1020                                                                          counter_data->ByteLength - sizeof(counter_data->ByteLength) + pad);
1021                                 if (counter_data->data == NULL) {
1022                                         return 0;
1023                                 }
1024                                 memset(counter_data->data, 0, counter_data->ByteLength - sizeof(counter_data->ByteLength) + pad);
1025                                 memcpy(counter_data->data, temp, counter_data->ByteLength - sizeof(counter_data->ByteLength));
1026                                 counter_data->ByteLength += pad;
1027                                 object[obj].TotalByteLength += counter_data->ByteLength;
1028                         }
1029                 }
1030                 else
1031                 {
1032                         /* Need to be 64-bit aligned at the end of the counter_data block, so pad counter_data to a 64-bit boundary,
1033                            so that the next PERF_OBJECT_TYPE can start on a 64-bit alignment */
1034                         if((pad = (object[obj].counter_data.ByteLength % 8)))
1035                         {
1036                                 pad = 8 - pad;
1037                                 object[obj].counter_data.data = TALLOC_REALLOC_ARRAY(mem_ctx,
1038                                                                                      object[obj].counter_data.data,
1039                                                                                      uint8,
1040                                                                                      object[obj].counter_data.ByteLength + pad);
1041                                 memset((void *)(object[obj].counter_data.data + object[obj].counter_data.ByteLength), 0, pad);
1042                                 object[obj].counter_data.ByteLength += pad;
1043                         }
1044                         object[obj].TotalByteLength += object[obj].counter_data.ByteLength;
1045                 }
1046                 object[obj].HeaderLength = sizeof(*object) - (sizeof(counter) + sizeof(instance) + sizeof(struct PERF_COUNTER_BLOCK));
1047                 object[obj].TotalByteLength += object[obj].HeaderLength;
1048                 object[obj].DefinitionLength += object[obj].HeaderLength;
1049
1050                 block->TotalByteLength += object[obj].TotalByteLength;
1051         }
1052
1053         return block->TotalByteLength;
1054 }
1055
1056 /*********************************************************************
1057 *********************************************************************/
1058
1059 static uint32 reg_perfcount_get_perf_data_block(uint32 base_index,
1060                                                 TALLOC_CTX *mem_ctx,
1061                                                 struct PERF_DATA_BLOCK *block,
1062                                                 const char *object_ids,
1063                                                 bool bigendian_data)
1064 {
1065         uint32 buffer_size = 0;
1066         const char *fname = counters_directory( NAMES_DB );
1067         TDB_CONTEXT *names;
1068         int retval = 0;
1069
1070         names = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDONLY, 0444);
1071
1072         if(names == NULL)
1073         {
1074                 DEBUG(1, ("reg_perfcount_get_perf_data_block: unable to open [%s].\n", fname));
1075                 return 0;
1076         }
1077
1078         if (!_reg_perfcount_init_data_block(block, mem_ctx, names, bigendian_data)) {
1079                 DEBUG(0, ("_reg_perfcount_init_data_block failed\n"));
1080                 tdb_close(names);
1081                 return 0;
1082         }
1083
1084         reg_perfcount_get_last_counter(base_index);
1085
1086         if(object_ids == NULL)
1087         {
1088                 /* we're getting a request for "Global" here */
1089                 retval = _reg_perfcount_assemble_global(block, mem_ctx, base_index, names);
1090         }
1091         else
1092         {
1093                 /* we're getting a request for a specific set of PERF_OBJECT_TYPES */
1094                 retval = _reg_perfcount_assemble_global(block, mem_ctx, base_index, names);
1095         }
1096         buffer_size = _reg_perfcount_perf_data_block_fixup(block, mem_ctx);
1097
1098         tdb_close(names);
1099
1100         if (retval == -1) {
1101                 return 0;
1102         }
1103
1104         return buffer_size + block->HeaderLength;
1105 }
1106
1107 /*******************************************************************
1108 ********************************************************************/
1109
1110 static bool smb_io_system_time(const char *desc, prs_struct *ps, int depth, struct SYSTEMTIME *systime)
1111 {
1112         if(!prs_uint16("year", ps, depth, &systime->year))
1113                 return False;
1114         if(!prs_uint16("month", ps, depth, &systime->month))
1115                 return False;
1116         if(!prs_uint16("dayofweek", ps, depth, &systime->dayofweek))
1117                 return False;
1118         if(!prs_uint16("day", ps, depth, &systime->day))
1119                 return False;
1120         if(!prs_uint16("hour", ps, depth, &systime->hour))
1121                 return False;
1122         if(!prs_uint16("minute", ps, depth, &systime->minute))
1123                 return False;
1124         if(!prs_uint16("second", ps, depth, &systime->second))
1125                 return False;
1126         if(!prs_uint16("milliseconds", ps, depth, &systime->milliseconds))
1127                 return False;
1128
1129         return True;
1130 }
1131
1132 /*********************************************************************
1133 *********************************************************************/
1134
1135 static bool _reg_perfcount_marshall_perf_data_block(prs_struct *ps, struct PERF_DATA_BLOCK block, int depth)
1136 {
1137         int i;
1138         prs_debug(ps, depth, "", "_reg_perfcount_marshall_perf_data_block");
1139         depth++;
1140
1141         if(!prs_align(ps))
1142                 return False;
1143         for(i = 0; i < 4; i++)
1144         {
1145                 if(!prs_uint16("Signature", ps, depth, &block.Signature[i]))
1146                         return False;
1147         }
1148         if(!prs_uint32("Little Endian", ps, depth, &block.LittleEndian))
1149                 return False;
1150         if(!prs_uint32("Version", ps, depth, &block.Version))
1151                 return False;
1152         if(!prs_uint32("Revision", ps, depth, &block.Revision))
1153                 return False;
1154         if(!prs_uint32("TotalByteLength", ps, depth, &block.TotalByteLength))
1155                 return False;
1156         if(!prs_uint32("HeaderLength", ps, depth, &block.HeaderLength))
1157                 return False;
1158         if(!prs_uint32("NumObjectTypes", ps, depth, &block.NumObjectTypes))
1159                 return False;
1160         if(!prs_uint32("DefaultObject", ps, depth, &block.DefaultObject))
1161                 return False;
1162         if(!smb_io_system_time("SystemTime", ps, depth, &block.SystemTime))
1163                 return False;
1164         if(!prs_uint32("Padding", ps, depth, &block.Padding))
1165                 return False;
1166         if(!prs_align_uint64(ps))
1167                 return False;
1168         if(!prs_uint64("PerfTime", ps, depth, &block.PerfTime))
1169                 return False;
1170         if(!prs_uint64("PerfFreq", ps, depth, &block.PerfFreq))
1171                 return False;
1172         if(!prs_uint64("PerfTime100nSec", ps, depth, &block.PerfTime100nSec))
1173                 return False;
1174         if(!prs_uint32("SystemNameLength", ps, depth, &block.SystemNameLength))
1175                 return False;
1176         if(!prs_uint32("SystemNameOffset", ps, depth, &block.SystemNameOffset))
1177                 return False;
1178         /* hack to make sure we're 64-bit aligned at the end of this whole mess */
1179         if(!prs_uint8s(False, "SystemName", ps, depth, block.data,
1180                        block.HeaderLength - block.SystemNameOffset))
1181                 return False;
1182
1183         return True;
1184 }
1185
1186 /*********************************************************************
1187 *********************************************************************/
1188
1189 static bool _reg_perfcount_marshall_perf_counters(prs_struct *ps,
1190                                                   struct PERF_OBJECT_TYPE object,
1191                                                   int depth)
1192 {
1193         int cnt;
1194         struct PERF_COUNTER_DEFINITION counter;
1195
1196         prs_debug(ps, depth, "", "_reg_perfcount_marshall_perf_counters");
1197         depth++;
1198
1199         for(cnt = 0; cnt < object.NumCounters; cnt++)
1200         {
1201                 counter = object.counters[cnt];
1202
1203                 if(!prs_align(ps))
1204                         return False;
1205                 if(!prs_uint32("ByteLength", ps, depth, &counter.ByteLength))
1206                         return False;
1207                 if(!prs_uint32("CounterNameTitleIndex", ps, depth, &counter.CounterNameTitleIndex))
1208                         return False;
1209                 if(!prs_uint32("CounterNameTitlePointer", ps, depth, &counter.CounterNameTitlePointer))
1210                         return False;
1211                 if(!prs_uint32("CounterHelpTitleIndex", ps, depth, &counter.CounterHelpTitleIndex))
1212                         return False;
1213                 if(!prs_uint32("CounterHelpTitlePointer", ps, depth, &counter.CounterHelpTitlePointer))
1214                         return False;
1215                 if(!prs_uint32("DefaultScale", ps, depth, &counter.DefaultScale))
1216                         return False;
1217                 if(!prs_uint32("DetailLevel", ps, depth, &counter.DetailLevel))
1218                         return False;
1219                 if(!prs_uint32("CounterType", ps, depth, &counter.CounterType))
1220                         return False;
1221                 if(!prs_uint32("CounterSize", ps, depth, &counter.CounterSize))
1222                         return False;
1223                 if(!prs_uint32("CounterOffset", ps, depth, &counter.CounterOffset))
1224                         return False;
1225         }
1226
1227         return True;
1228 }
1229
1230 /*********************************************************************
1231 *********************************************************************/
1232
1233 static bool _reg_perfcount_marshall_perf_counter_data(prs_struct *ps,
1234                                                       struct PERF_COUNTER_BLOCK counter_data,
1235                                                       int depth)
1236 {
1237         prs_debug(ps, depth, "", "_reg_perfcount_marshall_perf_counter_data");
1238         depth++;
1239
1240         if(!prs_align_uint64(ps))
1241                 return False;
1242
1243         if(!prs_uint32("ByteLength", ps, depth, &counter_data.ByteLength))
1244                 return False;
1245         if(!prs_uint8s(False, "CounterData", ps, depth, counter_data.data, counter_data.ByteLength - sizeof(uint32)))
1246                 return False;
1247         if(!prs_align_uint64(ps))
1248                 return False;
1249
1250         return True;
1251 }
1252
1253 /*********************************************************************
1254 *********************************************************************/
1255
1256 static bool _reg_perfcount_marshall_perf_instances(prs_struct *ps,
1257                                                    struct PERF_OBJECT_TYPE object,
1258                                                    int depth)
1259 {
1260         struct PERF_INSTANCE_DEFINITION instance;
1261         int inst;
1262
1263         prs_debug(ps, depth, "", "_reg_perfcount_marshall_perf_instances");
1264         depth++;
1265
1266         for(inst = 0; inst < object.NumInstances; inst++)
1267         {
1268                 instance = object.instances[inst];
1269
1270                 if(!prs_align(ps))
1271                         return False;
1272                 if(!prs_uint32("ByteLength", ps, depth, &instance.ByteLength))
1273                         return False;
1274                 if(!prs_uint32("ParentObjectTitleIndex", ps, depth, &instance.ParentObjectTitleIndex))
1275                         return False;
1276                 if(!prs_uint32("ParentObjectTitlePointer", ps, depth, &instance.ParentObjectTitlePointer))
1277                         return False;
1278                 if(!prs_uint32("UniqueID", ps, depth, &instance.UniqueID))
1279                         return False;
1280                 if(!prs_uint32("NameOffset", ps, depth, &instance.NameOffset))
1281                         return False;
1282                 if(!prs_uint32("NameLength", ps, depth, &instance.NameLength))
1283                         return False;
1284                 if(!prs_uint8s(False, "InstanceName", ps, depth, instance.data,
1285                                instance.ByteLength - instance.NameOffset))
1286                         return False;
1287                 if(_reg_perfcount_marshall_perf_counter_data(ps, instance.counter_data, depth) == False)
1288                         return False;
1289         }
1290
1291         return True;
1292 }
1293
1294 /*********************************************************************
1295 *********************************************************************/
1296
1297 static bool _reg_perfcount_marshall_perf_objects(prs_struct *ps, struct PERF_DATA_BLOCK block, int depth)
1298 {
1299         int obj;
1300
1301         struct PERF_OBJECT_TYPE object;
1302
1303         prs_debug(ps, depth, "", "_reg_perfcount_marshall_perf_objects");
1304         depth++;
1305
1306         for(obj = 0; obj < block.NumObjectTypes; obj++)
1307         {
1308                 object = block.objects[obj];
1309
1310                 if(!prs_align(ps))
1311                         return False;
1312
1313                 if(!prs_uint32("TotalByteLength", ps, depth, &object.TotalByteLength))
1314                         return False;
1315                 if(!prs_uint32("DefinitionLength", ps, depth, &object.DefinitionLength))
1316                         return False;
1317                 if(!prs_uint32("HeaderLength", ps, depth, &object.HeaderLength))
1318                         return False;
1319                 if(!prs_uint32("ObjectNameTitleIndex", ps, depth, &object.ObjectNameTitleIndex))
1320                         return False;
1321                 if(!prs_uint32("ObjectNameTitlePointer", ps, depth, &object.ObjectNameTitlePointer))
1322                         return False;
1323                 if(!prs_uint32("ObjectHelpTitleIndex", ps, depth, &object.ObjectHelpTitleIndex))
1324                         return False;
1325                 if(!prs_uint32("ObjectHelpTitlePointer", ps, depth, &object.ObjectHelpTitlePointer))
1326                         return False;
1327                 if(!prs_uint32("DetailLevel", ps, depth, &object.DetailLevel))
1328                         return False;
1329                 if(!prs_uint32("NumCounters", ps, depth, &object.NumCounters))
1330                         return False;
1331                 if(!prs_uint32("DefaultCounter", ps, depth, &object.DefaultCounter))
1332                         return False;
1333                 if(!prs_uint32("NumInstances", ps, depth, &object.NumInstances))
1334                         return False;
1335                 if(!prs_uint32("CodePage", ps, depth, &object.CodePage))
1336                         return False;
1337                 if(!prs_align_uint64(ps))
1338                         return False;
1339                 if(!prs_uint64("PerfTime", ps, depth, &object.PerfTime))
1340                         return False;
1341                 if(!prs_uint64("PerfFreq", ps, depth, &object.PerfFreq))
1342                         return False;
1343
1344                 /* Now do the counters */
1345                 /* If no instances, encode counter_data */
1346                 /* If instances, encode instace plus counter data for each instance */
1347                 if(_reg_perfcount_marshall_perf_counters(ps, object, depth) == False)
1348                         return False;
1349                 if(object.NumInstances == PERF_NO_INSTANCES)
1350                 {
1351                         if(_reg_perfcount_marshall_perf_counter_data(ps, object.counter_data, depth) == False)
1352                                 return False;
1353                 }
1354                 else
1355                 {
1356                         if(_reg_perfcount_marshall_perf_instances(ps, object, depth) == False)
1357                                 return False;
1358                 }
1359         }
1360
1361         return True;
1362 }
1363
1364 /*********************************************************************
1365 *********************************************************************/
1366
1367 WERROR reg_perfcount_get_hkpd(prs_struct *ps, uint32 max_buf_size, uint32 *outbuf_len, const char *object_ids)
1368 {
1369         /*
1370          * For a detailed description of the layout of this structure,
1371          * see http://msdn.microsoft.com/library/default.asp?url=/library/en-us/perfmon/base/performance_data_format.asp
1372          *
1373          * By 2006-11-23 this link did not work anymore, I found something
1374          * promising under
1375          * http://msdn2.microsoft.com/en-us/library/aa373105.aspx -- vl
1376          */
1377         struct PERF_DATA_BLOCK block;
1378         uint32 buffer_size, base_index;
1379
1380         buffer_size = 0;
1381         base_index = reg_perfcount_get_base_index();
1382         ZERO_STRUCT(block);
1383
1384         buffer_size = reg_perfcount_get_perf_data_block(base_index, ps->mem_ctx, &block, object_ids, ps->bigendian_data);
1385
1386         if(buffer_size < max_buf_size)
1387         {
1388                 *outbuf_len = buffer_size;
1389
1390                 if (!_reg_perfcount_marshall_perf_data_block(ps, block, 0))
1391                         return WERR_NOMEM;
1392
1393                 if (!_reg_perfcount_marshall_perf_objects(ps, block, 0))
1394                         return WERR_NOMEM;
1395
1396                 return WERR_OK;
1397         }
1398         else
1399         {
1400                 *outbuf_len = max_buf_size;
1401                 if (!_reg_perfcount_marshall_perf_data_block(ps, block, 0))
1402                         return WERR_NOMEM;
1403
1404                 return WERR_INSUFFICIENT_BUFFER;
1405         }
1406 }