source: branches/samba-3.3.x/source/registry/reg_perfcount.c@ 221

Last change on this file since 221 was 206, checked in by Herwig Bauernfeind, 17 years ago

Import Samba 3.3 branch at 3.0.0 level (psmedley's port)
File size: 40.3 KB
Line 
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
24#undef DBGC_CLASS
25#define DBGC_CLASS DBGC_REGISTRY
26
27#define PERFCOUNT_MAX_LEN 256
28
29#define PERFCOUNTDIR "perfmon"
30#define NAMES_DB "names.tdb"
31#define DATA_DB "data.tdb"
32
33PERF_OBJECT_TYPE *_reg_perfcount_find_obj(PERF_DATA_BLOCK *block, int objind);
34
35/*********************************************************************
36*********************************************************************/
37
38static char *counters_directory(const char *dbname)
39{
40 char *path = NULL;
41 char *ret = NULL;
42 TALLOC_CTX *ctx = talloc_tos();
43
44 if (!dbname)
45 return NULL;
46
47 path = talloc_asprintf(ctx, "%s/%s", PERFCOUNTDIR, dbname);
48 if (!path) {
49 return NULL;
50 }
51
52 ret = talloc_strdup(ctx, state_path(path));
53 TALLOC_FREE(path);
54 return ret;
55}
56
57/*********************************************************************
58*********************************************************************/
59
60void perfcount_init_keys( void )
61{
62 char *p = state_path(PERFCOUNTDIR);
63
64 /* no registry keys; just create the perfmon directory */
65
66 if ( !directory_exist( p, NULL ) )
67 mkdir( p, 0755 );
68
69 return;
70}
71
72/*********************************************************************
73*********************************************************************/
74
75uint32 reg_perfcount_get_base_index(void)
76{
77 const char *fname = counters_directory( NAMES_DB );
78 TDB_CONTEXT *names;
79 TDB_DATA kbuf, dbuf;
80 char key[] = "1";
81 uint32 retval = 0;
82 char buf[PERFCOUNT_MAX_LEN];
83
84 names = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDONLY, 0444);
85
86 if ( !names ) {
87 DEBUG(1, ("reg_perfcount_get_base_index: unable to open [%s].\n", fname));
88 return 0;
89 }
90 /* needs to read the value of key "1" from the counter_names.tdb file, as that is
91 where the total number of counters is stored. We're assuming no holes in the
92 enumeration.
93 The format for the counter_names.tdb file is:
94 key value
95 1 num_counters
96 2 perf_counter1
97 3 perf_counter1_help
98 4 perf_counter2
99 5 perf_counter2_help
100 even_num perf_counter<even_num>
101 even_num+1 perf_counter<even_num>_help
102 and so on.
103 So last_counter becomes num_counters*2, and last_help will be last_counter+1 */
104 kbuf = string_tdb_data(key);
105 dbuf = tdb_fetch(names, kbuf);
106 if(dbuf.dptr == NULL)
107 {
108 DEBUG(1, ("reg_perfcount_get_base_index: failed to find key \'1\' in [%s].\n", fname));
109 tdb_close(names);
110 return 0;
111 }
112 else
113 {
114 tdb_close(names);
115 memset(buf, 0, PERFCOUNT_MAX_LEN);
116 memcpy(buf, dbuf.dptr, dbuf.dsize);
117 retval = (uint32)atoi(buf);
118 SAFE_FREE(dbuf.dptr);
119 return retval;
120 }
121 return 0;
122}
123
124/*********************************************************************
125*********************************************************************/
126
127uint32 reg_perfcount_get_last_counter(uint32 base_index)
128{
129 uint32 retval;
130
131 if(base_index == 0)
132 retval = 0;
133 else
134 retval = base_index * 2;
135
136 return retval;
137}
138
139/*********************************************************************
140*********************************************************************/
141
142uint32 reg_perfcount_get_last_help(uint32 last_counter)
143{
144 uint32 retval;
145
146 if(last_counter == 0)
147 retval = 0;
148 else
149 retval = last_counter + 1;
150
151 return retval;
152}
153
154
155/*********************************************************************
156*********************************************************************/
157
158static uint32 _reg_perfcount_multi_sz_from_tdb(TDB_CONTEXT *tdb,
159 int keyval,
160 char **retbuf,
161 uint32 buffer_size)
162{
163 TDB_DATA kbuf, dbuf;
164 char temp[256];
165 char *buf1 = *retbuf;
166 uint32 working_size = 0;
167 UNISTR2 name_index, name;
168
169 memset(temp, 0, sizeof(temp));
170 snprintf(temp, sizeof(temp), "%d", keyval);
171 kbuf = string_tdb_data(temp);
172 dbuf = tdb_fetch(tdb, kbuf);
173 if(dbuf.dptr == NULL)
174 {
175 /* If a key isn't there, just bypass it -- this really shouldn't
176 happen unless someone's mucking around with the tdb */
177 DEBUG(3, ("_reg_perfcount_multi_sz_from_tdb: failed to find key [%s] in [%s].\n",
178 temp, tdb_name(tdb)));
179 return buffer_size;
180 }
181 /* First encode the name_index */
182 working_size = (kbuf.dsize + 1)*sizeof(uint16);
183 buf1 = (char *)SMB_REALLOC(buf1, buffer_size + working_size);
184 if(!buf1) {
185 buffer_size = 0;
186 return buffer_size;
187 }
188 init_unistr2(&name_index, (const char *)kbuf.dptr, UNI_STR_TERMINATE);
189 memcpy(buf1+buffer_size, (char *)name_index.buffer, working_size);
190 buffer_size += working_size;
191 /* Now encode the actual name */
192 working_size = (dbuf.dsize + 1)*sizeof(uint16);
193 buf1 = (char *)SMB_REALLOC(buf1, buffer_size + working_size);
194 if(!buf1) {
195 buffer_size = 0;
196 return buffer_size;
197 }
198 memset(temp, 0, sizeof(temp));
199 memcpy(temp, dbuf.dptr, dbuf.dsize);
200 SAFE_FREE(dbuf.dptr);
201 init_unistr2(&name, temp, UNI_STR_TERMINATE);
202 memcpy(buf1+buffer_size, (char *)name.buffer, working_size);
203 buffer_size += working_size;
204
205 *retbuf = buf1;
206
207 return buffer_size;
208}
209
210/*********************************************************************
211*********************************************************************/
212
213uint32 reg_perfcount_get_counter_help(uint32 base_index, char **retbuf)
214{
215 char *buf1 = NULL;
216 uint32 buffer_size = 0;
217 TDB_CONTEXT *names;
218 const char *fname = counters_directory( NAMES_DB );
219 int i;
220
221 if(base_index == 0)
222 return 0;
223
224 names = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDONLY, 0444);
225
226 if(names == NULL)
227 {
228 DEBUG(1, ("reg_perfcount_get_counter_help: unable to open [%s].\n", fname));
229 return 0;
230 }
231
232 for(i = 1; i <= base_index; i++)
233 {
234 buffer_size = _reg_perfcount_multi_sz_from_tdb(names, (i*2)+1, retbuf, buffer_size);
235 }
236 tdb_close(names);
237
238 /* Now terminate the MULTI_SZ with a double unicode NULL */
239 buf1 = *retbuf;
240 buf1 = (char *)SMB_REALLOC(buf1, buffer_size + 2);
241 if(!buf1) {
242 buffer_size = 0;
243 } else {
244 buf1[buffer_size++] = '\0';
245 buf1[buffer_size++] = '\0';
246 }
247
248 *retbuf = buf1;
249
250 return buffer_size;
251}
252
253/*********************************************************************
254*********************************************************************/
255
256uint32 reg_perfcount_get_counter_names(uint32 base_index, char **retbuf)
257{
258 char *buf1 = NULL;
259 uint32 buffer_size = 0;
260 TDB_CONTEXT *names;
261 const char *fname = counters_directory( NAMES_DB );
262 int i;
263
264 if(base_index == 0)
265 return 0;
266
267 names = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDONLY, 0444);
268
269 if(names == NULL)
270 {
271 DEBUG(1, ("reg_perfcount_get_counter_names: unable to open [%s].\n", fname));
272 return 0;
273 }
274
275 buffer_size = _reg_perfcount_multi_sz_from_tdb(names, 1, retbuf, buffer_size);
276
277 for(i = 1; i <= base_index; i++)
278 {
279 buffer_size = _reg_perfcount_multi_sz_from_tdb(names, i*2, retbuf, buffer_size);
280 }
281 tdb_close(names);
282
283 /* Now terminate the MULTI_SZ with a double unicode NULL */
284 buf1 = *retbuf;
285 buf1 = (char *)SMB_REALLOC(buf1, buffer_size + 2);
286 if(!buf1) {
287 buffer_size = 0;
288 } else {
289 buf1[buffer_size++] = '\0';
290 buf1[buffer_size++] = '\0';
291 }
292
293 *retbuf=buf1;
294
295 return buffer_size;
296}
297
298/*********************************************************************
299*********************************************************************/
300
301static void _reg_perfcount_make_key(TDB_DATA *key,
302 char *buf,
303 int buflen,
304 int key_part1,
305 const char *key_part2)
306{
307 memset(buf, 0, buflen);
308 if(key_part2 != NULL)
309 snprintf(buf, buflen,"%d%s", key_part1, key_part2);
310 else
311 snprintf(buf, buflen, "%d", key_part1);
312
313 *key = string_tdb_data(buf);
314
315 return;
316}
317
318/*********************************************************************
319*********************************************************************/
320
321static bool _reg_perfcount_isparent(TDB_DATA data)
322{
323 if(data.dsize > 0)
324 {
325 if(data.dptr[0] == 'p')
326 return True;
327 else
328 return False;
329 }
330 return False;
331}
332
333/*********************************************************************
334*********************************************************************/
335
336static bool _reg_perfcount_ischild(TDB_DATA data)
337{
338 if(data.dsize > 0)
339 {
340 if(data.dptr[0] == 'c')
341 return True;
342 else
343 return False;
344 }
345 return False;
346}
347
348/*********************************************************************
349*********************************************************************/
350
351static uint32 _reg_perfcount_get_numinst(int objInd, TDB_CONTEXT *names)
352{
353 TDB_DATA key, data;
354 char buf[PERFCOUNT_MAX_LEN];
355
356 _reg_perfcount_make_key(&key, buf, PERFCOUNT_MAX_LEN, objInd, "inst");
357 data = tdb_fetch(names, key);
358
359 if(data.dptr == NULL)
360 return (uint32)PERF_NO_INSTANCES;
361
362 memset(buf, 0, PERFCOUNT_MAX_LEN);
363 memcpy(buf, data.dptr, data.dsize);
364 SAFE_FREE(data.dptr);
365 return (uint32)atoi(buf);
366}
367
368/*********************************************************************
369*********************************************************************/
370
371static bool _reg_perfcount_add_object(PERF_DATA_BLOCK *block,
372 prs_struct *ps,
373 int num,
374 TDB_DATA data,
375 TDB_CONTEXT *names)
376{
377 int i;
378 bool success = True;
379 PERF_OBJECT_TYPE *obj;
380
381 block->objects = (PERF_OBJECT_TYPE *)TALLOC_REALLOC_ARRAY(ps->mem_ctx,
382 block->objects,
383 PERF_OBJECT_TYPE,
384 block->NumObjectTypes+1);
385 if(block->objects == NULL)
386 return False;
387 obj = &(block->objects[block->NumObjectTypes]);
388 memset((void *)&(block->objects[block->NumObjectTypes]), 0, sizeof(PERF_OBJECT_TYPE));
389 block->objects[block->NumObjectTypes].ObjectNameTitleIndex = num;
390 block->objects[block->NumObjectTypes].ObjectNameTitlePointer = 0;
391 block->objects[block->NumObjectTypes].ObjectHelpTitleIndex = num+1;
392 block->objects[block->NumObjectTypes].ObjectHelpTitlePointer = 0;
393 block->objects[block->NumObjectTypes].NumCounters = 0;
394 block->objects[block->NumObjectTypes].DefaultCounter = 0;
395 block->objects[block->NumObjectTypes].NumInstances = _reg_perfcount_get_numinst(num, names);
396 block->objects[block->NumObjectTypes].counters = NULL;
397 block->objects[block->NumObjectTypes].instances = NULL;
398 block->objects[block->NumObjectTypes].counter_data.ByteLength = sizeof(uint32);
399 block->objects[block->NumObjectTypes].counter_data.data = NULL;
400 block->objects[block->NumObjectTypes].DetailLevel = PERF_DETAIL_NOVICE;
401 block->NumObjectTypes+=1;
402
403 for(i = 0; i < (int)obj->NumInstances; i++) {
404 success = _reg_perfcount_add_instance(obj, ps, i, names);
405 }
406
407 return success;
408}
409
410/*********************************************************************
411*********************************************************************/
412
413bool _reg_perfcount_get_counter_data(TDB_DATA key, TDB_DATA *data)
414{
415 TDB_CONTEXT *counters;
416 const char *fname = counters_directory( DATA_DB );
417
418 counters = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDONLY, 0444);
419
420 if(counters == NULL)
421 {
422 DEBUG(1, ("reg_perfcount_get_counter_data: unable to open [%s].\n", fname));
423 return False;
424 }
425
426 *data = tdb_fetch(counters, key);
427
428 tdb_close(counters);
429
430 return True;
431}
432
433/*********************************************************************
434*********************************************************************/
435
436static uint32 _reg_perfcount_get_size_field(uint32 CounterType)
437{
438 uint32 retval;
439
440 retval = CounterType;
441
442 /* First mask out reserved lower 8 bits */
443 retval = retval & 0xFFFFFF00;
444 retval = retval << 22;
445 retval = retval >> 22;
446
447 return retval;
448}
449
450/*********************************************************************
451*********************************************************************/
452
453static uint32 _reg_perfcount_compute_scale(SMB_BIG_INT data)
454{
455 int scale = 0;
456 if(data == 0)
457 return scale;
458 while(data > 100)
459 {
460 data /= 10;
461 scale--;
462 }
463 while(data < 10)
464 {
465 data *= 10;
466 scale++;
467 }
468
469 return (uint32)scale;
470}
471
472/*********************************************************************
473*********************************************************************/
474
475static bool _reg_perfcount_get_counter_info(PERF_DATA_BLOCK *block,
476 prs_struct *ps,
477 int CounterIndex,
478 PERF_OBJECT_TYPE *obj,
479 TDB_CONTEXT *names)
480{
481 TDB_DATA key, data;
482 char buf[PERFCOUNT_MAX_LEN];
483 size_t dsize, padding;
484 long int data32, dbuf[2];
485 SMB_BIG_INT data64;
486 uint32 counter_size;
487
488 obj->counters[obj->NumCounters].DefaultScale = 0;
489 dbuf[0] = dbuf[1] = 0;
490 padding = 0;
491
492 _reg_perfcount_make_key(&key, buf, PERFCOUNT_MAX_LEN, CounterIndex, "type");
493 data = tdb_fetch(names, key);
494 if(data.dptr == NULL)
495 {
496 DEBUG(3, ("_reg_perfcount_get_counter_info: No type data for counter [%d].\n", CounterIndex));
497 return False;
498 }
499 memset(buf, 0, PERFCOUNT_MAX_LEN);
500 memcpy(buf, data.dptr, data.dsize);
501 obj->counters[obj->NumCounters].CounterType = atoi(buf);
502 DEBUG(10, ("_reg_perfcount_get_counter_info: Got type [%d] for counter [%d].\n",
503 obj->counters[obj->NumCounters].CounterType, CounterIndex));
504 SAFE_FREE(data.dptr);
505
506 /* Fetch the actual data */
507 _reg_perfcount_make_key(&key, buf, PERFCOUNT_MAX_LEN, CounterIndex, "");
508 _reg_perfcount_get_counter_data(key, &data);
509 if(data.dptr == NULL)
510 {
511 DEBUG(3, ("_reg_perfcount_get_counter_info: No counter data for counter [%d].\n", CounterIndex));
512 return False;
513 }
514
515 counter_size = _reg_perfcount_get_size_field(obj->counters[obj->NumCounters].CounterType);
516
517 if(counter_size == PERF_SIZE_DWORD)
518 {
519 dsize = sizeof(data32);
520 memset(buf, 0, PERFCOUNT_MAX_LEN);
521 memcpy(buf, data.dptr, data.dsize);
522 data32 = strtol(buf, NULL, 0);
523 if((obj->counters[obj->NumCounters].CounterType & 0x00000F00) == PERF_TYPE_NUMBER)
524 obj->counters[obj->NumCounters].DefaultScale = _reg_perfcount_compute_scale((SMB_BIG_INT)data32);
525 else
526 obj->counters[obj->NumCounters].DefaultScale = 0;
527 dbuf[0] = data32;
528 padding = (dsize - (obj->counter_data.ByteLength%dsize)) % dsize;
529 }
530 else if(counter_size == PERF_SIZE_LARGE)
531 {
532 dsize = sizeof(data64);
533 memset(buf, 0, PERFCOUNT_MAX_LEN);
534 memcpy(buf, data.dptr, data.dsize);
535 data64 = atof(buf);
536 if((obj->counters[obj->NumCounters].CounterType & 0x00000F00) == PERF_TYPE_NUMBER)
537 obj->counters[obj->NumCounters].DefaultScale = _reg_perfcount_compute_scale(data64);
538 else
539 obj->counters[obj->NumCounters].DefaultScale = 0;
540 memcpy((void *)dbuf, (const void *)&data64, dsize);
541 padding = (dsize - (obj->counter_data.ByteLength%dsize)) % dsize;
542 }
543 else /* PERF_SIZE_VARIABLE_LEN */
544 {
545 dsize = data.dsize;
546 memset(buf, 0, PERFCOUNT_MAX_LEN);
547 memcpy(buf, data.dptr, data.dsize);
548 }
549 SAFE_FREE(data.dptr);
550
551 obj->counter_data.ByteLength += dsize + padding;
552 obj->counter_data.data = TALLOC_REALLOC_ARRAY(ps->mem_ctx,
553 obj->counter_data.data,
554 uint8,
555 obj->counter_data.ByteLength - sizeof(uint32));
556 if(obj->counter_data.data == NULL)
557 return False;
558 if(dbuf[0] != 0 || dbuf[1] != 0)
559 {
560 memcpy((void *)(obj->counter_data.data +
561 (obj->counter_data.ByteLength - (sizeof(uint32) + dsize))),
562 (const void *)dbuf, dsize);
563 }
564 else
565 {
566 /* Handling PERF_SIZE_VARIABLE_LEN */
567 memcpy((void *)(obj->counter_data.data +
568 (obj->counter_data.ByteLength - (sizeof(uint32) + dsize))),
569 (const void *)buf, dsize);
570 }
571 obj->counters[obj->NumCounters].CounterOffset = obj->counter_data.ByteLength - dsize;
572 if(obj->counters[obj->NumCounters].CounterOffset % dsize != 0)
573 {
574 DEBUG(3,("Improperly aligned counter [%d]\n", obj->NumCounters));
575 }
576 obj->counters[obj->NumCounters].CounterSize = dsize;
577
578 return True;
579}
580
581/*********************************************************************
582*********************************************************************/
583
584PERF_OBJECT_TYPE *_reg_perfcount_find_obj(PERF_DATA_BLOCK *block, int objind)
585{
586 int i;
587
588 PERF_OBJECT_TYPE *obj = NULL;
589
590 for(i = 0; i < block->NumObjectTypes; i++)
591 {
592 if(block->objects[i].ObjectNameTitleIndex == objind)
593 {
594 obj = &(block->objects[i]);
595 }
596 }
597
598 return obj;
599}
600
601/*********************************************************************
602*********************************************************************/
603
604static bool _reg_perfcount_add_counter(PERF_DATA_BLOCK *block,
605 prs_struct *ps,
606 int num,
607 TDB_DATA data,
608 TDB_CONTEXT *names)
609{
610 char *begin, *end, *start, *stop;
611 int parent;
612 PERF_OBJECT_TYPE *obj;
613 bool success = True;
614 char buf[PERFCOUNT_MAX_LEN];
615
616 obj = NULL;
617 memset(buf, 0, PERFCOUNT_MAX_LEN);
618 memcpy(buf, data.dptr, data.dsize);
619 begin = index(buf, '[');
620 end = index(buf, ']');
621 if(begin == NULL || end == NULL)
622 return False;
623 start = begin+1;
624
625 while(start < end) {
626 stop = index(start, ',');
627 if(stop == NULL)
628 stop = end;
629 *stop = '\0';
630 parent = atoi(start);
631
632 obj = _reg_perfcount_find_obj(block, parent);
633 if(obj == NULL) {
634 /* At this point we require that the parent object exist.
635 This can probably be handled better at some later time */
636 DEBUG(3, ("_reg_perfcount_add_counter: Could not find parent object [%d] for counter [%d].\n",
637 parent, num));
638 return False;
639 }
640 obj->counters = (PERF_COUNTER_DEFINITION *)TALLOC_REALLOC_ARRAY(ps->mem_ctx,
641 obj->counters,
642 PERF_COUNTER_DEFINITION,
643 obj->NumCounters+1);
644 if(obj->counters == NULL)
645 return False;
646 memset((void *)&(obj->counters[obj->NumCounters]), 0, sizeof(PERF_COUNTER_DEFINITION));
647 obj->counters[obj->NumCounters].CounterNameTitleIndex=num;
648 obj->counters[obj->NumCounters].CounterHelpTitleIndex=num+1;
649 obj->counters[obj->NumCounters].DetailLevel = PERF_DETAIL_NOVICE;
650 obj->counters[obj->NumCounters].ByteLength = sizeof(PERF_COUNTER_DEFINITION);
651 success = _reg_perfcount_get_counter_info(block, ps, num, obj, names);
652 obj->NumCounters += 1;
653 start = stop + 1;
654 }
655
656 /* Handle case of Objects/Counters without any counter data, which would suggest
657 that the required instances are not there yet, so change NumInstances from
658 PERF_NO_INSTANCES to 0 */
659
660 return success;
661}
662
663/*********************************************************************
664*********************************************************************/
665
666bool _reg_perfcount_get_instance_info(PERF_INSTANCE_DEFINITION *inst,
667 prs_struct *ps,
668 int instId,
669 PERF_OBJECT_TYPE *obj,
670 TDB_CONTEXT *names)
671{
672 TDB_DATA key, data;
673 char buf[PERFCOUNT_MAX_LEN], temp[PERFCOUNT_MAX_LEN];
674 smb_ucs2_t *name = NULL;
675 int pad;
676
677 /* First grab the instance data from the data file */
678 memset(temp, 0, PERFCOUNT_MAX_LEN);
679 snprintf(temp, PERFCOUNT_MAX_LEN, "i%d", instId);
680 _reg_perfcount_make_key(&key, buf, PERFCOUNT_MAX_LEN, obj->ObjectNameTitleIndex, temp);
681 if (!_reg_perfcount_get_counter_data(key, &data)) {
682 DEBUG(3, ("_reg_perfcount_get_counter_data failed\n"));
683 return false;
684 }
685 if(data.dptr == NULL)
686 {
687 DEBUG(3, ("_reg_perfcount_get_instance_info: No instance data for instance [%s].\n",
688 buf));
689 return False;
690 }
691 inst->counter_data.ByteLength = data.dsize + sizeof(inst->counter_data.ByteLength);
692 inst->counter_data.data = TALLOC_REALLOC_ARRAY(ps->mem_ctx,
693 inst->counter_data.data,
694 uint8,
695 data.dsize);
696 if(inst->counter_data.data == NULL)
697 return False;
698 memset(inst->counter_data.data, 0, data.dsize);
699 memcpy(inst->counter_data.data, data.dptr, data.dsize);
700 SAFE_FREE(data.dptr);
701
702 /* Fetch instance name */
703 memset(temp, 0, PERFCOUNT_MAX_LEN);
704 snprintf(temp, PERFCOUNT_MAX_LEN, "i%dname", instId);
705 _reg_perfcount_make_key(&key, buf, PERFCOUNT_MAX_LEN, obj->ObjectNameTitleIndex, temp);
706 data = tdb_fetch(names, key);
707 if(data.dptr == NULL)
708 {
709 /* Not actually an error, but possibly unintended? -- just logging FYI */
710 DEBUG(3, ("_reg_perfcount_get_instance_info: No instance name for instance [%s].\n",
711 buf));
712 inst->NameLength = 0;
713 }
714 else
715 {
716 memset(buf, 0, PERFCOUNT_MAX_LEN);
717 memcpy(buf, data.dptr, MIN(PERFCOUNT_MAX_LEN-1,data.dsize));
718 buf[PERFCOUNT_MAX_LEN-1] = '\0';
719 inst->NameLength = rpcstr_push_talloc(ps->mem_ctx, &name, buf);
720 if (inst->NameLength == (uint32_t)-1 || !name) {
721 SAFE_FREE(data.dptr);
722 return False;
723 }
724 inst->data = TALLOC_REALLOC_ARRAY(ps->mem_ctx,
725 inst->data,
726 uint8,
727 inst->NameLength);
728 if (inst->data == NULL) {
729 SAFE_FREE(data.dptr);
730 return False;
731 }
732 memcpy(inst->data, name, inst->NameLength);
733 SAFE_FREE(data.dptr);
734 }
735
736 inst->ParentObjectTitleIndex = 0;
737 inst->ParentObjectTitlePointer = 0;
738 inst->UniqueID = PERF_NO_UNIQUE_ID;
739 inst->NameOffset = 6 * sizeof(uint32);
740
741 inst->ByteLength = inst->NameOffset + inst->NameLength;
742 /* Need to be aligned on a 64-bit boundary here for counter_data */
743 if((pad = (inst->ByteLength % 8)))
744 {
745 pad = 8 - pad;
746 inst->data = TALLOC_REALLOC_ARRAY(ps->mem_ctx,
747 inst->data,
748 uint8,
749 inst->NameLength + pad);
750 memset(inst->data + inst->NameLength, 0, pad);
751 inst->ByteLength += pad;
752 }
753
754 return True;
755}
756
757/*********************************************************************
758*********************************************************************/
759
760bool _reg_perfcount_add_instance(PERF_OBJECT_TYPE *obj,
761 prs_struct *ps,
762 int instInd,
763 TDB_CONTEXT *names)
764{
765 PERF_INSTANCE_DEFINITION *inst;
766
767 if(obj->instances == NULL) {
768 obj->instances = TALLOC_REALLOC_ARRAY(ps->mem_ctx,
769 obj->instances,
770 PERF_INSTANCE_DEFINITION,
771 obj->NumInstances);
772 }
773 if(obj->instances == NULL)
774 return False;
775
776 memset(&(obj->instances[instInd]), 0, sizeof(PERF_INSTANCE_DEFINITION));
777 inst = &(obj->instances[instInd]);
778 return _reg_perfcount_get_instance_info(inst, ps, instInd, obj, names);
779}
780
781/*********************************************************************
782*********************************************************************/
783
784static int _reg_perfcount_assemble_global(PERF_DATA_BLOCK *block,
785 prs_struct *ps,
786 int base_index,
787 TDB_CONTEXT *names)
788{
789 bool success;
790 int i, j, retval = 0;
791 char keybuf[PERFCOUNT_MAX_LEN];
792 TDB_DATA key, data;
793
794 for(i = 1; i <= base_index; i++)
795 {
796 j = i*2;
797 _reg_perfcount_make_key(&key, keybuf, PERFCOUNT_MAX_LEN, j, "rel");
798 data = tdb_fetch(names, key);
799 if(data.dptr != NULL)
800 {
801 if(_reg_perfcount_isparent(data))
802 success = _reg_perfcount_add_object(block, ps, j, data, names);
803 else if(_reg_perfcount_ischild(data))
804 success = _reg_perfcount_add_counter(block, ps, j, data, names);
805 else
806 {
807 DEBUG(3, ("Bogus relationship [%s] for counter [%d].\n", data.dptr, j));
808 success = False;
809 }
810 if(success == False)
811 {
812 DEBUG(3, ("_reg_perfcount_assemble_global: Failed to add new relationship for counter [%d].\n", j));
813 retval = -1;
814 }
815 SAFE_FREE(data.dptr);
816 }
817 else
818 DEBUG(3, ("NULL relationship for counter [%d] using key [%s].\n", j, keybuf));
819 }
820 return retval;
821}
822
823/*********************************************************************
824*********************************************************************/
825
826static bool _reg_perfcount_get_64(SMB_BIG_UINT *retval,
827 TDB_CONTEXT *tdb,
828 int key_part1,
829 const char *key_part2)
830{
831 TDB_DATA key, data;
832 char buf[PERFCOUNT_MAX_LEN];
833
834 _reg_perfcount_make_key(&key, buf, PERFCOUNT_MAX_LEN, key_part1, key_part2);
835
836 data = tdb_fetch(tdb, key);
837 if(data.dptr == NULL)
838 {
839 DEBUG(3,("_reg_perfcount_get_64: No data found for key [%s].\n", key.dptr));
840 return False;
841 }
842
843 memset(buf, 0, PERFCOUNT_MAX_LEN);
844 memcpy(buf, data.dptr, data.dsize);
845 SAFE_FREE(data.dptr);
846
847 *retval = atof(buf);
848
849 return True;
850}
851
852/*********************************************************************
853*********************************************************************/
854
855static bool _reg_perfcount_init_data_block_perf(PERF_DATA_BLOCK *block,
856 TDB_CONTEXT *names)
857{
858 SMB_BIG_UINT PerfFreq, PerfTime, PerfTime100nSec;
859 TDB_CONTEXT *counters;
860 bool status = False;
861 const char *fname = counters_directory( DATA_DB );
862
863 counters = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDONLY, 0444);
864
865 if(counters == NULL)
866 {
867 DEBUG(1, ("reg_perfcount_init_data_block_perf: unable to open [%s].\n", fname));
868 return False;
869 }
870
871 status = _reg_perfcount_get_64(&PerfFreq, names, 0, "PerfFreq");
872 if(status == False)
873 {
874 tdb_close(counters);
875 return status;
876 }
877 memcpy((void *)&(block->PerfFreq), (const void *)&PerfFreq, sizeof(PerfFreq));
878
879 status = _reg_perfcount_get_64(&PerfTime, counters, 0, "PerfTime");
880 if(status == False)
881 {
882 tdb_close(counters);
883 return status;
884 }
885 memcpy((void *)&(block->PerfTime), (const void *)&PerfTime, sizeof(PerfTime));
886
887 status = _reg_perfcount_get_64(&PerfTime100nSec, counters, 0, "PerfTime100nSec");
888 if(status == False)
889 {
890 tdb_close(counters);
891 return status;
892 }
893 memcpy((void *)&(block->PerfTime100nSec), (const void *)&PerfTime100nSec, sizeof(PerfTime100nSec));
894
895 tdb_close(counters);
896 return True;
897}
898
899/*********************************************************************
900*********************************************************************/
901
902static bool _reg_perfcount_init_data_block(PERF_DATA_BLOCK *block,
903 prs_struct *ps, TDB_CONTEXT *names)
904{
905 smb_ucs2_t *temp = NULL;
906 time_t tm;
907
908 if (rpcstr_push_talloc(ps->mem_ctx, &temp, "PERF")==(size_t)-1) {
909 return false;
910 }
911 if (!temp) {
912 return false;
913 }
914 memcpy(block->Signature, temp, strlen_w(temp) *2);
915
916 if(ps->bigendian_data == RPC_BIG_ENDIAN)
917 block->LittleEndian = 0;
918 else
919 block->LittleEndian = 1;
920 block->Version = 1;
921 block->Revision = 1;
922 block->TotalByteLength = 0;
923 block->NumObjectTypes = 0;
924 block->DefaultObject = -1;
925 block->objects = NULL;
926 tm = time(NULL);
927 make_systemtime(&(block->SystemTime), gmtime(&tm));
928 _reg_perfcount_init_data_block_perf(block, names);
929 memset(temp, 0, sizeof(temp));
930 rpcstr_push((void *)temp, global_myname(), sizeof(temp), STR_TERMINATE);
931 block->SystemNameLength = (strlen_w(temp) * 2) + 2;
932 block->data = TALLOC_ZERO_ARRAY(ps->mem_ctx, uint8, block->SystemNameLength + (8 - (block->SystemNameLength % 8)));
933 if (block->data == NULL) {
934 return False;
935 }
936 memcpy(block->data, temp, block->SystemNameLength);
937 block->SystemNameOffset = sizeof(PERF_DATA_BLOCK) - sizeof(block->objects) - sizeof(block->data);
938 block->HeaderLength = block->SystemNameOffset + block->SystemNameLength;
939 /* Make sure to adjust for 64-bit alignment for when we finish writing the system name,
940 so that the PERF_OBJECT_TYPE struct comes out 64-bit aligned */
941 block->HeaderLength += 8 - (block->HeaderLength % 8);
942
943 return True;
944}
945
946/*********************************************************************
947*********************************************************************/
948
949static uint32 _reg_perfcount_perf_data_block_fixup(PERF_DATA_BLOCK *block, prs_struct *ps)
950{
951 int obj, cnt, inst, pad, i;
952 PERF_OBJECT_TYPE *object;
953 PERF_INSTANCE_DEFINITION *instance;
954 PERF_COUNTER_DEFINITION *counter;
955 PERF_COUNTER_BLOCK *counter_data;
956 char *temp = NULL, *src_addr, *dst_addr;
957
958 block->TotalByteLength = 0;
959 object = block->objects;
960 for(obj = 0; obj < block->NumObjectTypes; obj++)
961 {
962 object[obj].TotalByteLength = 0;
963 object[obj].DefinitionLength = 0;
964 instance = object[obj].instances;
965 counter = object[obj].counters;
966 for(cnt = 0; cnt < object[obj].NumCounters; cnt++)
967 {
968 object[obj].TotalByteLength += counter[cnt].ByteLength;
969 object[obj].DefinitionLength += counter[cnt].ByteLength;
970 }
971 if(object[obj].NumInstances != PERF_NO_INSTANCES)
972 {
973 for(inst = 0; inst < object[obj].NumInstances; inst++)
974 {
975 instance = &(object[obj].instances[inst]);
976 object[obj].TotalByteLength += instance->ByteLength;
977 counter_data = &(instance->counter_data);
978 counter = &(object[obj].counters[object[obj].NumCounters - 1]);
979 counter_data->ByteLength = counter->CounterOffset + counter->CounterSize + sizeof(counter_data->ByteLength);
980 temp = TALLOC_REALLOC_ARRAY(ps->mem_ctx,
981 temp,
982 char,
983 counter_data->ByteLength- sizeof(counter_data->ByteLength));
984 if (temp == NULL) {
985 return 0;
986 }
987 memset(temp, 0, counter_data->ByteLength - sizeof(counter_data->ByteLength));
988 src_addr = (char *)counter_data->data;
989 for(i = 0; i < object[obj].NumCounters; i++)
990 {
991 counter = &(object[obj].counters[i]);
992 dst_addr = temp + counter->CounterOffset - sizeof(counter_data->ByteLength);
993 memcpy(dst_addr, src_addr, counter->CounterSize);
994 src_addr += counter->CounterSize;
995 }
996 /* Make sure to be 64-bit aligned */
997 if((pad = (counter_data->ByteLength % 8)))
998 {
999 pad = 8 - pad;
1000 }
1001 counter_data->data = TALLOC_REALLOC_ARRAY(ps->mem_ctx,
1002 counter_data->data,
1003 uint8,
1004 counter_data->ByteLength - sizeof(counter_data->ByteLength) + pad);
1005 if (counter_data->data == NULL) {
1006 return 0;
1007 }
1008 memset(counter_data->data, 0, counter_data->ByteLength - sizeof(counter_data->ByteLength) + pad);
1009 memcpy(counter_data->data, temp, counter_data->ByteLength - sizeof(counter_data->ByteLength));
1010 counter_data->ByteLength += pad;
1011 object[obj].TotalByteLength += counter_data->ByteLength;
1012 }
1013 }
1014 else
1015 {
1016 /* Need to be 64-bit aligned at the end of the counter_data block, so pad counter_data to a 64-bit boundary,
1017 so that the next PERF_OBJECT_TYPE can start on a 64-bit alignment */
1018 if((pad = (object[obj].counter_data.ByteLength % 8)))
1019 {
1020 pad = 8 - pad;
1021 object[obj].counter_data.data = TALLOC_REALLOC_ARRAY(ps->mem_ctx,
1022 object[obj].counter_data.data,
1023 uint8,
1024 object[obj].counter_data.ByteLength + pad);
1025 memset((void *)(object[obj].counter_data.data + object[obj].counter_data.ByteLength), 0, pad);
1026 object[obj].counter_data.ByteLength += pad;
1027 }
1028 object[obj].TotalByteLength += object[obj].counter_data.ByteLength;
1029 }
1030 object[obj].HeaderLength = sizeof(*object) - (sizeof(counter) + sizeof(instance) + sizeof(PERF_COUNTER_BLOCK));
1031 object[obj].TotalByteLength += object[obj].HeaderLength;
1032 object[obj].DefinitionLength += object[obj].HeaderLength;
1033
1034 block->TotalByteLength += object[obj].TotalByteLength;
1035 }
1036
1037 return block->TotalByteLength;
1038}
1039
1040/*********************************************************************
1041*********************************************************************/
1042
1043uint32 reg_perfcount_get_perf_data_block(uint32 base_index,
1044 prs_struct *ps,
1045 PERF_DATA_BLOCK *block,
1046 const char *object_ids)
1047{
1048 uint32 buffer_size = 0;
1049 const char *fname = counters_directory( NAMES_DB );
1050 TDB_CONTEXT *names;
1051 int retval = 0;
1052
1053 names = tdb_open_log(fname, 0, TDB_DEFAULT, O_RDONLY, 0444);
1054
1055 if(names == NULL)
1056 {
1057 DEBUG(1, ("reg_perfcount_get_perf_data_block: unable to open [%s].\n", fname));
1058 return 0;
1059 }
1060
1061 if (!_reg_perfcount_init_data_block(block, ps, names)) {
1062 DEBUG(0, ("_reg_perfcount_init_data_block failed\n"));
1063 tdb_close(names);
1064 return 0;
1065 }
1066
1067 reg_perfcount_get_last_counter(base_index);
1068
1069 if(object_ids == NULL)
1070 {
1071 /* we're getting a request for "Global" here */
1072 retval = _reg_perfcount_assemble_global(block, ps, base_index, names);
1073 }
1074 else
1075 {
1076 /* we're getting a request for a specific set of PERF_OBJECT_TYPES */
1077 retval = _reg_perfcount_assemble_global(block, ps, base_index, names);
1078 }
1079 buffer_size = _reg_perfcount_perf_data_block_fixup(block, ps);
1080
1081 tdb_close(names);
1082
1083 if (retval == -1) {
1084 return 0;
1085 }
1086
1087 return buffer_size + block->HeaderLength;
1088}
1089
1090/*********************************************************************
1091*********************************************************************/
1092
1093static bool _reg_perfcount_marshall_perf_data_block(prs_struct *ps, PERF_DATA_BLOCK block, int depth)
1094{
1095 int i;
1096 prs_debug(ps, depth, "", "_reg_perfcount_marshall_perf_data_block");
1097 depth++;
1098
1099 if(!prs_align(ps))
1100 return False;
1101 for(i = 0; i < 4; i++)
1102 {
1103 if(!prs_uint16("Signature", ps, depth, &block.Signature[i]))
1104 return False;
1105 }
1106 if(!prs_uint32("Little Endian", ps, depth, &block.LittleEndian))
1107 return False;
1108 if(!prs_uint32("Version", ps, depth, &block.Version))
1109 return False;
1110 if(!prs_uint32("Revision", ps, depth, &block.Revision))
1111 return False;
1112 if(!prs_uint32("TotalByteLength", ps, depth, &block.TotalByteLength))
1113 return False;
1114 if(!prs_uint32("HeaderLength", ps, depth, &block.HeaderLength))
1115 return False;
1116 if(!prs_uint32("NumObjectTypes", ps, depth, &block.NumObjectTypes))
1117 return False;
1118 if(!prs_uint32("DefaultObject", ps, depth, &block.DefaultObject))
1119 return False;
1120 if(!spoolss_io_system_time("SystemTime", ps, depth, &block.SystemTime))
1121 return False;
1122 if(!prs_uint32("Padding", ps, depth, &block.Padding))
1123 return False;
1124 if(!prs_align_uint64(ps))
1125 return False;
1126 if(!prs_uint64("PerfTime", ps, depth, &block.PerfTime))
1127 return False;
1128 if(!prs_uint64("PerfFreq", ps, depth, &block.PerfFreq))
1129 return False;
1130 if(!prs_uint64("PerfTime100nSec", ps, depth, &block.PerfTime100nSec))
1131 return False;
1132 if(!prs_uint32("SystemNameLength", ps, depth, &block.SystemNameLength))
1133 return False;
1134 if(!prs_uint32("SystemNameOffset", ps, depth, &block.SystemNameOffset))
1135 return False;
1136 /* hack to make sure we're 64-bit aligned at the end of this whole mess */
1137 if(!prs_uint8s(False, "SystemName", ps, depth, block.data,
1138 block.HeaderLength - block.SystemNameOffset))
1139 return False;
1140
1141 return True;
1142}
1143
1144/*********************************************************************
1145*********************************************************************/
1146
1147static bool _reg_perfcount_marshall_perf_counters(prs_struct *ps,
1148 PERF_OBJECT_TYPE object,
1149 int depth)
1150{
1151 int cnt;
1152 PERF_COUNTER_DEFINITION counter;
1153
1154 prs_debug(ps, depth, "", "_reg_perfcount_marshall_perf_counters");
1155 depth++;
1156
1157 for(cnt = 0; cnt < object.NumCounters; cnt++)
1158 {
1159 counter = object.counters[cnt];
1160
1161 if(!prs_align(ps))
1162 return False;
1163 if(!prs_uint32("ByteLength", ps, depth, &counter.ByteLength))
1164 return False;
1165 if(!prs_uint32("CounterNameTitleIndex", ps, depth, &counter.CounterNameTitleIndex))
1166 return False;
1167 if(!prs_uint32("CounterNameTitlePointer", ps, depth, &counter.CounterNameTitlePointer))
1168 return False;
1169 if(!prs_uint32("CounterHelpTitleIndex", ps, depth, &counter.CounterHelpTitleIndex))
1170 return False;
1171 if(!prs_uint32("CounterHelpTitlePointer", ps, depth, &counter.CounterHelpTitlePointer))
1172 return False;
1173 if(!prs_uint32("DefaultScale", ps, depth, &counter.DefaultScale))
1174 return False;
1175 if(!prs_uint32("DetailLevel", ps, depth, &counter.DetailLevel))
1176 return False;
1177 if(!prs_uint32("CounterType", ps, depth, &counter.CounterType))
1178 return False;
1179 if(!prs_uint32("CounterSize", ps, depth, &counter.CounterSize))
1180 return False;
1181 if(!prs_uint32("CounterOffset", ps, depth, &counter.CounterOffset))
1182 return False;
1183 }
1184
1185 return True;
1186}
1187
1188/*********************************************************************
1189*********************************************************************/
1190
1191static bool _reg_perfcount_marshall_perf_counter_data(prs_struct *ps,
1192 PERF_COUNTER_BLOCK counter_data,
1193 int depth)
1194{
1195 prs_debug(ps, depth, "", "_reg_perfcount_marshall_perf_counter_data");
1196 depth++;
1197
1198 if(!prs_align_uint64(ps))
1199 return False;
1200
1201 if(!prs_uint32("ByteLength", ps, depth, &counter_data.ByteLength))
1202 return False;
1203 if(!prs_uint8s(False, "CounterData", ps, depth, counter_data.data, counter_data.ByteLength - sizeof(uint32)))
1204 return False;
1205 if(!prs_align_uint64(ps))
1206 return False;
1207
1208 return True;
1209}
1210
1211/*********************************************************************
1212*********************************************************************/
1213
1214static bool _reg_perfcount_marshall_perf_instances(prs_struct *ps,
1215 PERF_OBJECT_TYPE object,
1216 int depth)
1217{
1218 PERF_INSTANCE_DEFINITION instance;
1219 int inst;
1220
1221 prs_debug(ps, depth, "", "_reg_perfcount_marshall_perf_instances");
1222 depth++;
1223
1224 for(inst = 0; inst < object.NumInstances; inst++)
1225 {
1226 instance = object.instances[inst];
1227
1228 if(!prs_align(ps))
1229 return False;
1230 if(!prs_uint32("ByteLength", ps, depth, &instance.ByteLength))
1231 return False;
1232 if(!prs_uint32("ParentObjectTitleIndex", ps, depth, &instance.ParentObjectTitleIndex))
1233 return False;
1234 if(!prs_uint32("ParentObjectTitlePointer", ps, depth, &instance.ParentObjectTitlePointer))
1235 return False;
1236 if(!prs_uint32("UniqueID", ps, depth, &instance.UniqueID))
1237 return False;
1238 if(!prs_uint32("NameOffset", ps, depth, &instance.NameOffset))
1239 return False;
1240 if(!prs_uint32("NameLength", ps, depth, &instance.NameLength))
1241 return False;
1242 if(!prs_uint8s(False, "InstanceName", ps, depth, instance.data,
1243 instance.ByteLength - instance.NameOffset))
1244 return False;
1245 if(_reg_perfcount_marshall_perf_counter_data(ps, instance.counter_data, depth) == False)
1246 return False;
1247 }
1248
1249 return True;
1250}
1251
1252/*********************************************************************
1253*********************************************************************/
1254
1255static bool _reg_perfcount_marshall_perf_objects(prs_struct *ps, PERF_DATA_BLOCK block, int depth)
1256{
1257 int obj;
1258
1259 PERF_OBJECT_TYPE object;
1260
1261 prs_debug(ps, depth, "", "_reg_perfcount_marshall_perf_objects");
1262 depth++;
1263
1264 for(obj = 0; obj < block.NumObjectTypes; obj++)
1265 {
1266 object = block.objects[obj];
1267
1268 if(!prs_align(ps))
1269 return False;
1270
1271 if(!prs_uint32("TotalByteLength", ps, depth, &object.TotalByteLength))
1272 return False;
1273 if(!prs_uint32("DefinitionLength", ps, depth, &object.DefinitionLength))
1274 return False;
1275 if(!prs_uint32("HeaderLength", ps, depth, &object.HeaderLength))
1276 return False;
1277 if(!prs_uint32("ObjectNameTitleIndex", ps, depth, &object.ObjectNameTitleIndex))
1278 return False;
1279 if(!prs_uint32("ObjectNameTitlePointer", ps, depth, &object.ObjectNameTitlePointer))
1280 return False;
1281 if(!prs_uint32("ObjectHelpTitleIndex", ps, depth, &object.ObjectHelpTitleIndex))
1282 return False;
1283 if(!prs_uint32("ObjectHelpTitlePointer", ps, depth, &object.ObjectHelpTitlePointer))
1284 return False;
1285 if(!prs_uint32("DetailLevel", ps, depth, &object.DetailLevel))
1286 return False;
1287 if(!prs_uint32("NumCounters", ps, depth, &object.NumCounters))
1288 return False;
1289 if(!prs_uint32("DefaultCounter", ps, depth, &object.DefaultCounter))
1290 return False;
1291 if(!prs_uint32("NumInstances", ps, depth, &object.NumInstances))
1292 return False;
1293 if(!prs_uint32("CodePage", ps, depth, &object.CodePage))
1294 return False;
1295 if(!prs_align_uint64(ps))
1296 return False;
1297 if(!prs_uint64("PerfTime", ps, depth, &object.PerfTime))
1298 return False;
1299 if(!prs_uint64("PerfFreq", ps, depth, &object.PerfFreq))
1300 return False;
1301
1302 /* Now do the counters */
1303 /* If no instances, encode counter_data */
1304 /* If instances, encode instace plus counter data for each instance */
1305 if(_reg_perfcount_marshall_perf_counters(ps, object, depth) == False)
1306 return False;
1307 if(object.NumInstances == PERF_NO_INSTANCES)
1308 {
1309 if(_reg_perfcount_marshall_perf_counter_data(ps, object.counter_data, depth) == False)
1310 return False;
1311 }
1312 else
1313 {
1314 if(_reg_perfcount_marshall_perf_instances(ps, object, depth) == False)
1315 return False;
1316 }
1317 }
1318
1319 return True;
1320}
1321
1322/*********************************************************************
1323*********************************************************************/
1324
1325static bool _reg_perfcount_marshall_hkpd(prs_struct *ps, PERF_DATA_BLOCK block)
1326{
1327 int depth = 0;
1328 if(_reg_perfcount_marshall_perf_data_block(ps, block, depth) == True)
1329 {
1330 if(_reg_perfcount_marshall_perf_objects(ps, block, depth) == True)
1331 return True;
1332 }
1333 return False;
1334}
1335
1336/*********************************************************************
1337*********************************************************************/
1338
1339WERROR reg_perfcount_get_hkpd(prs_struct *ps, uint32 max_buf_size, uint32 *outbuf_len, const char *object_ids)
1340{
1341 /*
1342 * For a detailed description of the layout of this structure,
1343 * see http://msdn.microsoft.com/library/default.asp?url=/library/en-us/perfmon/base/performance_data_format.asp
1344 *
1345 * By 2006-11-23 this link did not work anymore, I found something
1346 * promising under
1347 * http://msdn2.microsoft.com/en-us/library/aa373105.aspx -- vl
1348 */
1349 PERF_DATA_BLOCK block;
1350 uint32 buffer_size, base_index;
1351
1352 buffer_size = 0;
1353 base_index = reg_perfcount_get_base_index();
1354 ZERO_STRUCT(block);
1355
1356 buffer_size = reg_perfcount_get_perf_data_block(base_index, ps, &block, object_ids);
1357
1358 if(buffer_size < max_buf_size)
1359 {
1360 *outbuf_len = buffer_size;
1361 if(_reg_perfcount_marshall_hkpd(ps, block) == True)
1362 return WERR_OK;
1363 else
1364 return WERR_NOMEM;
1365 }
1366 else
1367 {
1368 *outbuf_len = max_buf_size;
1369 _reg_perfcount_marshall_perf_data_block(ps, block, 0);
1370 return WERR_INSUFFICIENT_BUFFER;
1371 }
1372}
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