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Commit | Line | Data |
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aa6bb135 RS |
1 | /* |
2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. | |
48fc582f | 3 | * |
aa6bb135 RS |
4 | * Licensed under the OpenSSL license (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
48fc582f | 8 | */ |
9ac42ed8 RL |
9 | |
10 | #include <stdio.h> | |
11 | #include <stdlib.h> | |
0f113f3e | 12 | #include <time.h> |
b39fc560 | 13 | #include "internal/cryptlib.h" |
23dd0c9f | 14 | #include "internal/thread_once.h" |
9ac42ed8 RL |
15 | #include <openssl/crypto.h> |
16 | #include <openssl/buffer.h> | |
1ee7b8b9 | 17 | #include "internal/bio.h" |
9ac42ed8 | 18 | #include <openssl/lhash.h> |
ef8ca6bd RL |
19 | |
20 | #ifndef OPENSSL_NO_CRYPTO_MDEBUG_BACKTRACE | |
012c5408 RL |
21 | # include <execinfo.h> |
22 | #endif | |
9ac42ed8 | 23 | |
0f113f3e MC |
24 | /* |
25 | * The state changes to CRYPTO_MEM_CHECK_ON | CRYPTO_MEM_CHECK_ENABLE when | |
26 | * the application asks for it (usually after library initialisation for | |
27 | * which no book-keeping is desired). State CRYPTO_MEM_CHECK_ON exists only | |
28 | * temporarily when the library thinks that certain allocations should not be | |
29 | * checked (e.g. the data structures used for memory checking). It is not | |
30 | * suitable as an initial state: the library will unexpectedly enable memory | |
31 | * checking when it executes one of those sections that want to disable | |
32 | * checking temporarily. State CRYPTO_MEM_CHECK_ENABLE without ..._ON makes | |
33 | * no sense whatsoever. | |
9ac42ed8 | 34 | */ |
c2e27310 | 35 | #ifndef OPENSSL_NO_CRYPTO_MDEBUG |
bbd86bf5 | 36 | static int mh_mode = CRYPTO_MEM_CHECK_OFF; |
c2e27310 | 37 | #endif |
9ac42ed8 | 38 | |
6ac11bd0 | 39 | #ifndef OPENSSL_NO_CRYPTO_MDEBUG |
0cd08cce | 40 | static unsigned long order = 0; /* number of memory requests */ |
3c1d6bbc | 41 | |
c80fd6b2 MC |
42 | /*- |
43 | * For application-defined information (static C-string `info') | |
0cd08cce BM |
44 | * to be displayed in memory leak list. |
45 | * Each thread has its own stack. For applications, there is | |
4fae386c RS |
46 | * OPENSSL_mem_debug_push("...") to push an entry, |
47 | * OPENSSL_mem_debug_pop() to pop an entry, | |
0cd08cce | 48 | */ |
e6b5c341 | 49 | struct app_mem_info_st { |
9471f776 | 50 | CRYPTO_THREAD_ID threadid; |
0f113f3e MC |
51 | const char *file; |
52 | int line; | |
53 | const char *info; | |
54 | struct app_mem_info_st *next; /* tail of thread's stack */ | |
55 | int references; | |
e6b5c341 | 56 | }; |
9ac42ed8 | 57 | |
9471f776 MC |
58 | static CRYPTO_ONCE memdbg_init = CRYPTO_ONCE_STATIC_INIT; |
59 | static CRYPTO_RWLOCK *malloc_lock = NULL; | |
60 | static CRYPTO_RWLOCK *long_malloc_lock = NULL; | |
61 | static CRYPTO_THREAD_LOCAL appinfokey; | |
9ac42ed8 | 62 | |
0cd08cce | 63 | /* memory-block description */ |
e6b5c341 | 64 | struct mem_st { |
0f113f3e MC |
65 | void *addr; |
66 | int num; | |
67 | const char *file; | |
68 | int line; | |
9471f776 | 69 | CRYPTO_THREAD_ID threadid; |
0f113f3e MC |
70 | unsigned long order; |
71 | time_t time; | |
72 | APP_INFO *app_info; | |
ef8ca6bd | 73 | #ifndef OPENSSL_NO_CRYPTO_MDEBUG_BACKTRACE |
012c5408 RL |
74 | void *array[30]; |
75 | size_t array_siz; | |
76 | #endif | |
e6b5c341 DSH |
77 | }; |
78 | ||
79 | static LHASH_OF(MEM) *mh = NULL; /* hash-table of memory requests (address as | |
80 | * key); access requires MALLOC2 lock */ | |
0f113f3e | 81 | |
bbd86bf5 RS |
82 | /* num_disable > 0 iff mh_mode == CRYPTO_MEM_CHECK_ON (w/o ..._ENABLE) */ |
83 | static unsigned int num_disable = 0; | |
48fc582f | 84 | |
0f113f3e | 85 | /* |
9471f776 | 86 | * Valid iff num_disable > 0. long_malloc_lock is locked exactly in this |
4c329696 | 87 | * case (by the thread named in disabling_thread). |
5f834ab1 | 88 | */ |
9471f776 MC |
89 | static CRYPTO_THREAD_ID disabling_threadid; |
90 | ||
23dd0c9f | 91 | DEFINE_RUN_ONCE_STATIC(do_memdbg_init) |
9471f776 MC |
92 | { |
93 | malloc_lock = CRYPTO_THREAD_lock_new(); | |
94 | long_malloc_lock = CRYPTO_THREAD_lock_new(); | |
23dd0c9f DSH |
95 | if (malloc_lock == NULL || long_malloc_lock == NULL |
96 | || !CRYPTO_THREAD_init_local(&appinfokey, NULL)) { | |
97 | CRYPTO_THREAD_lock_free(malloc_lock); | |
98 | malloc_lock = NULL; | |
99 | CRYPTO_THREAD_lock_free(long_malloc_lock); | |
100 | long_malloc_lock = NULL; | |
101 | return 0; | |
102 | } | |
103 | return 1; | |
9471f776 | 104 | } |
9ac42ed8 | 105 | |
9dc61049 | 106 | static void app_info_free(APP_INFO *inf) |
0f113f3e | 107 | { |
25aaa98a RS |
108 | if (!inf) |
109 | return; | |
0f113f3e | 110 | if (--(inf->references) <= 0) { |
25aaa98a | 111 | app_info_free(inf->next); |
0f113f3e MC |
112 | OPENSSL_free(inf); |
113 | } | |
114 | } | |
bbd86bf5 | 115 | #endif |
9dc61049 | 116 | |
9ac42ed8 | 117 | int CRYPTO_mem_ctrl(int mode) |
0f113f3e | 118 | { |
c2e27310 | 119 | #ifdef OPENSSL_NO_CRYPTO_MDEBUG |
bbd86bf5 RS |
120 | return mode - mode; |
121 | #else | |
0f113f3e MC |
122 | int ret = mh_mode; |
123 | ||
c2e4e5d2 RL |
124 | if (!RUN_ONCE(&memdbg_init, do_memdbg_init)) |
125 | return -1; | |
9471f776 MC |
126 | |
127 | CRYPTO_THREAD_write_lock(malloc_lock); | |
0f113f3e | 128 | switch (mode) { |
bbd86bf5 RS |
129 | default: |
130 | break; | |
131 | ||
132 | case CRYPTO_MEM_CHECK_ON: | |
0f113f3e MC |
133 | mh_mode = CRYPTO_MEM_CHECK_ON | CRYPTO_MEM_CHECK_ENABLE; |
134 | num_disable = 0; | |
135 | break; | |
bbd86bf5 RS |
136 | |
137 | case CRYPTO_MEM_CHECK_OFF: | |
0f113f3e | 138 | mh_mode = 0; |
bbd86bf5 | 139 | num_disable = 0; |
0f113f3e MC |
140 | break; |
141 | ||
bbd86bf5 RS |
142 | /* switch off temporarily (for library-internal use): */ |
143 | case CRYPTO_MEM_CHECK_DISABLE: | |
0f113f3e | 144 | if (mh_mode & CRYPTO_MEM_CHECK_ON) { |
9471f776 MC |
145 | CRYPTO_THREAD_ID cur = CRYPTO_THREAD_get_current_id(); |
146 | /* see if we don't have long_malloc_lock already */ | |
0f113f3e | 147 | if (!num_disable |
9471f776 | 148 | || !CRYPTO_THREAD_compare_id(disabling_threadid, cur)) { |
0f113f3e | 149 | /* |
9471f776 MC |
150 | * Long-time lock long_malloc_lock must not be claimed |
151 | * while we're holding malloc_lock, or we'll deadlock | |
152 | * if somebody else holds long_malloc_lock (and cannot | |
0f113f3e MC |
153 | * release it because we block entry to this function). Give |
154 | * them a chance, first, and then claim the locks in | |
155 | * appropriate order (long-time lock first). | |
156 | */ | |
9471f776 | 157 | CRYPTO_THREAD_unlock(malloc_lock); |
0f113f3e | 158 | /* |
9471f776 MC |
159 | * Note that after we have waited for long_malloc_lock and |
160 | * malloc_lock, we'll still be in the right "case" and | |
0f113f3e MC |
161 | * "if" branch because MemCheck_start and MemCheck_stop may |
162 | * never be used while there are multiple OpenSSL threads. | |
163 | */ | |
9471f776 MC |
164 | CRYPTO_THREAD_write_lock(long_malloc_lock); |
165 | CRYPTO_THREAD_write_lock(malloc_lock); | |
0f113f3e | 166 | mh_mode &= ~CRYPTO_MEM_CHECK_ENABLE; |
9471f776 | 167 | disabling_threadid = cur; |
0f113f3e MC |
168 | } |
169 | num_disable++; | |
170 | } | |
171 | break; | |
bbd86bf5 RS |
172 | |
173 | case CRYPTO_MEM_CHECK_ENABLE: | |
0f113f3e MC |
174 | if (mh_mode & CRYPTO_MEM_CHECK_ON) { |
175 | if (num_disable) { /* always true, or something is going wrong */ | |
176 | num_disable--; | |
177 | if (num_disable == 0) { | |
178 | mh_mode |= CRYPTO_MEM_CHECK_ENABLE; | |
9471f776 | 179 | CRYPTO_THREAD_unlock(long_malloc_lock); |
0f113f3e MC |
180 | } |
181 | } | |
182 | } | |
183 | break; | |
0f113f3e | 184 | } |
9471f776 | 185 | CRYPTO_THREAD_unlock(malloc_lock); |
0f113f3e | 186 | return (ret); |
bbd86bf5 | 187 | #endif |
0f113f3e | 188 | } |
9ac42ed8 | 189 | |
6ac11bd0 | 190 | #ifndef OPENSSL_NO_CRYPTO_MDEBUG |
bbd86bf5 RS |
191 | |
192 | static int mem_check_on(void) | |
0f113f3e MC |
193 | { |
194 | int ret = 0; | |
a0605744 | 195 | CRYPTO_THREAD_ID cur; |
9ac42ed8 | 196 | |
0f113f3e | 197 | if (mh_mode & CRYPTO_MEM_CHECK_ON) { |
c2e4e5d2 RL |
198 | if (!RUN_ONCE(&memdbg_init, do_memdbg_init)) |
199 | return 0; | |
9471f776 | 200 | |
a0605744 | 201 | cur = CRYPTO_THREAD_get_current_id(); |
9471f776 | 202 | CRYPTO_THREAD_read_lock(malloc_lock); |
9ac42ed8 | 203 | |
0f113f3e | 204 | ret = (mh_mode & CRYPTO_MEM_CHECK_ENABLE) |
9471f776 | 205 | || !CRYPTO_THREAD_compare_id(disabling_threadid, cur); |
9ac42ed8 | 206 | |
9471f776 | 207 | CRYPTO_THREAD_unlock(malloc_lock); |
0f113f3e MC |
208 | } |
209 | return (ret); | |
210 | } | |
9ac42ed8 | 211 | |
3c1d6bbc | 212 | static int mem_cmp(const MEM *a, const MEM *b) |
0f113f3e | 213 | { |
1875e6db | 214 | #ifdef _WIN64 |
0f113f3e MC |
215 | const char *ap = (const char *)a->addr, *bp = (const char *)b->addr; |
216 | if (ap == bp) | |
217 | return 0; | |
218 | else if (ap > bp) | |
219 | return 1; | |
220 | else | |
221 | return -1; | |
1875e6db | 222 | #else |
0f113f3e | 223 | return (const char *)a->addr - (const char *)b->addr; |
1875e6db | 224 | #endif |
0f113f3e MC |
225 | } |
226 | ||
3c1d6bbc | 227 | static unsigned long mem_hash(const MEM *a) |
0f113f3e | 228 | { |
5f0580cc | 229 | size_t ret; |
9ac42ed8 | 230 | |
5f0580cc | 231 | ret = (size_t)a->addr; |
0f113f3e MC |
232 | |
233 | ret = ret * 17851 + (ret >> 14) * 7 + (ret >> 4) * 251; | |
234 | return (ret); | |
235 | } | |
9ac42ed8 | 236 | |
96e25c49 PC |
237 | /* returns 1 if there was an info to pop, 0 if the stack was empty. */ |
238 | static int pop_info(void) | |
0f113f3e | 239 | { |
96e25c49 | 240 | APP_INFO *current = NULL; |
0f113f3e | 241 | |
c2e4e5d2 RL |
242 | if (!RUN_ONCE(&memdbg_init, do_memdbg_init)) |
243 | return 0; | |
244 | ||
9471f776 MC |
245 | current = (APP_INFO *)CRYPTO_THREAD_get_local(&appinfokey); |
246 | if (current != NULL) { | |
247 | APP_INFO *next = current->next; | |
0f113f3e | 248 | |
9471f776 MC |
249 | if (next != NULL) { |
250 | next->references++; | |
251 | CRYPTO_THREAD_set_local(&appinfokey, next); | |
252 | } else { | |
253 | CRYPTO_THREAD_set_local(&appinfokey, NULL); | |
254 | } | |
255 | if (--(current->references) <= 0) { | |
256 | current->next = NULL; | |
257 | if (next != NULL) | |
258 | next->references--; | |
259 | OPENSSL_free(current); | |
0f113f3e | 260 | } |
9471f776 | 261 | return 1; |
0f113f3e | 262 | } |
96e25c49 | 263 | return 0; |
0f113f3e | 264 | } |
9ac42ed8 | 265 | |
4fae386c | 266 | int CRYPTO_mem_debug_push(const char *info, const char *file, int line) |
0f113f3e MC |
267 | { |
268 | APP_INFO *ami, *amim; | |
269 | int ret = 0; | |
270 | ||
bbd86bf5 RS |
271 | if (mem_check_on()) { |
272 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); | |
0f113f3e | 273 | |
c2e4e5d2 RL |
274 | if (!RUN_ONCE(&memdbg_init, do_memdbg_init) |
275 | || (ami = OPENSSL_malloc(sizeof(*ami))) == NULL) | |
0f113f3e | 276 | goto err; |
0f113f3e | 277 | |
9471f776 | 278 | ami->threadid = CRYPTO_THREAD_get_current_id(); |
0f113f3e MC |
279 | ami->file = file; |
280 | ami->line = line; | |
281 | ami->info = info; | |
282 | ami->references = 1; | |
283 | ami->next = NULL; | |
284 | ||
9471f776 MC |
285 | amim = (APP_INFO *)CRYPTO_THREAD_get_local(&appinfokey); |
286 | CRYPTO_THREAD_set_local(&appinfokey, ami); | |
287 | ||
288 | if (amim != NULL) | |
0f113f3e | 289 | ami->next = amim; |
bbd86bf5 | 290 | ret = 1; |
9ac42ed8 | 291 | err: |
bbd86bf5 | 292 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
0f113f3e | 293 | } |
9ac42ed8 | 294 | |
0f113f3e MC |
295 | return (ret); |
296 | } | |
9ac42ed8 | 297 | |
4fae386c | 298 | int CRYPTO_mem_debug_pop(void) |
0f113f3e MC |
299 | { |
300 | int ret = 0; | |
9ac42ed8 | 301 | |
bbd86bf5 RS |
302 | if (mem_check_on()) { |
303 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); | |
96e25c49 | 304 | ret = pop_info(); |
bbd86bf5 | 305 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
0f113f3e MC |
306 | } |
307 | return (ret); | |
308 | } | |
9ac42ed8 | 309 | |
0f113f3e | 310 | static unsigned long break_order_num = 0; |
bbd86bf5 RS |
311 | |
312 | void CRYPTO_mem_debug_malloc(void *addr, size_t num, int before_p, | |
313 | const char *file, int line) | |
0f113f3e MC |
314 | { |
315 | MEM *m, *mm; | |
9471f776 | 316 | APP_INFO *amim; |
0f113f3e MC |
317 | |
318 | switch (before_p & 127) { | |
319 | case 0: | |
320 | break; | |
321 | case 1: | |
322 | if (addr == NULL) | |
323 | break; | |
324 | ||
bbd86bf5 RS |
325 | if (mem_check_on()) { |
326 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); | |
9471f776 | 327 | |
c2e4e5d2 RL |
328 | if (!RUN_ONCE(&memdbg_init, do_memdbg_init) |
329 | || (m = OPENSSL_malloc(sizeof(*m))) == NULL) { | |
0f113f3e | 330 | OPENSSL_free(addr); |
bbd86bf5 | 331 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
0f113f3e MC |
332 | return; |
333 | } | |
334 | if (mh == NULL) { | |
62d0577e | 335 | if ((mh = lh_MEM_new(mem_hash, mem_cmp)) == NULL) { |
0f113f3e MC |
336 | OPENSSL_free(addr); |
337 | OPENSSL_free(m); | |
338 | addr = NULL; | |
339 | goto err; | |
340 | } | |
341 | } | |
342 | ||
343 | m->addr = addr; | |
344 | m->file = file; | |
345 | m->line = line; | |
346 | m->num = num; | |
9471f776 | 347 | m->threadid = CRYPTO_THREAD_get_current_id(); |
0f113f3e MC |
348 | |
349 | if (order == break_order_num) { | |
350 | /* BREAK HERE */ | |
351 | m->order = order; | |
352 | } | |
353 | m->order = order++; | |
ef8ca6bd | 354 | # ifndef OPENSSL_NO_CRYPTO_MDEBUG_BACKTRACE |
012c5408 | 355 | m->array_siz = backtrace(m->array, OSSL_NELEM(m->array)); |
bbd86bf5 RS |
356 | # endif |
357 | m->time = time(NULL); | |
0f113f3e | 358 | |
9471f776 MC |
359 | amim = (APP_INFO *)CRYPTO_THREAD_get_local(&appinfokey); |
360 | m->app_info = amim; | |
361 | if (amim != NULL) | |
0f113f3e | 362 | amim->references++; |
0f113f3e MC |
363 | |
364 | if ((mm = lh_MEM_insert(mh, m)) != NULL) { | |
365 | /* Not good, but don't sweat it */ | |
366 | if (mm->app_info != NULL) { | |
367 | mm->app_info->references--; | |
368 | } | |
369 | OPENSSL_free(mm); | |
370 | } | |
371 | err: | |
bbd86bf5 | 372 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
0f113f3e MC |
373 | } |
374 | break; | |
375 | } | |
376 | return; | |
377 | } | |
9ac42ed8 | 378 | |
05c7b163 RL |
379 | void CRYPTO_mem_debug_free(void *addr, int before_p, |
380 | const char *file, int line) | |
0f113f3e MC |
381 | { |
382 | MEM m, *mp; | |
383 | ||
384 | switch (before_p) { | |
385 | case 0: | |
386 | if (addr == NULL) | |
387 | break; | |
388 | ||
bbd86bf5 RS |
389 | if (mem_check_on() && (mh != NULL)) { |
390 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); | |
0f113f3e MC |
391 | |
392 | m.addr = addr; | |
393 | mp = lh_MEM_delete(mh, &m); | |
394 | if (mp != NULL) { | |
25aaa98a | 395 | app_info_free(mp->app_info); |
0f113f3e MC |
396 | OPENSSL_free(mp); |
397 | } | |
398 | ||
bbd86bf5 | 399 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
0f113f3e MC |
400 | } |
401 | break; | |
402 | case 1: | |
403 | break; | |
404 | } | |
405 | } | |
9ac42ed8 | 406 | |
bbd86bf5 RS |
407 | void CRYPTO_mem_debug_realloc(void *addr1, void *addr2, size_t num, |
408 | int before_p, const char *file, int line) | |
0f113f3e MC |
409 | { |
410 | MEM m, *mp; | |
9ac42ed8 | 411 | |
0f113f3e MC |
412 | switch (before_p) { |
413 | case 0: | |
414 | break; | |
415 | case 1: | |
416 | if (addr2 == NULL) | |
417 | break; | |
418 | ||
419 | if (addr1 == NULL) { | |
bbd86bf5 | 420 | CRYPTO_mem_debug_malloc(addr2, num, 128 | before_p, file, line); |
0f113f3e MC |
421 | break; |
422 | } | |
423 | ||
bbd86bf5 RS |
424 | if (mem_check_on()) { |
425 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); | |
0f113f3e MC |
426 | |
427 | m.addr = addr1; | |
428 | mp = lh_MEM_delete(mh, &m); | |
429 | if (mp != NULL) { | |
0f113f3e MC |
430 | mp->addr = addr2; |
431 | mp->num = num; | |
ef8ca6bd | 432 | #ifndef OPENSSL_NO_CRYPTO_MDEBUG_BACKTRACE |
012c5408 RL |
433 | mp->array_siz = backtrace(mp->array, OSSL_NELEM(mp->array)); |
434 | #endif | |
0f113f3e MC |
435 | (void)lh_MEM_insert(mh, mp); |
436 | } | |
437 | ||
bbd86bf5 | 438 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
0f113f3e MC |
439 | } |
440 | break; | |
441 | } | |
442 | return; | |
443 | } | |
444 | ||
445 | typedef struct mem_leak_st { | |
446 | BIO *bio; | |
447 | int chunks; | |
448 | long bytes; | |
449 | } MEM_LEAK; | |
9ac42ed8 | 450 | |
2a056de8 | 451 | static void print_leak(const MEM *m, MEM_LEAK *l) |
0f113f3e MC |
452 | { |
453 | char buf[1024]; | |
454 | char *bufp = buf; | |
455 | APP_INFO *amip; | |
456 | int ami_cnt; | |
457 | struct tm *lcl = NULL; | |
9471f776 MC |
458 | /* |
459 | * Convert between CRYPTO_THREAD_ID (which could be anything at all) and | |
460 | * a long. This may not be meaningful depending on what CRYPTO_THREAD_ID is | |
461 | * but hopefully should give something sensible on most platforms | |
462 | */ | |
463 | union { | |
464 | CRYPTO_THREAD_ID tid; | |
465 | unsigned long ltid; | |
466 | } tid; | |
467 | CRYPTO_THREAD_ID ti; | |
9ac42ed8 | 468 | |
d420ac2c RL |
469 | #define BUF_REMAIN (sizeof buf - (size_t)(bufp - buf)) |
470 | ||
bbd86bf5 RS |
471 | lcl = localtime(&m->time); |
472 | BIO_snprintf(bufp, BUF_REMAIN, "[%02d:%02d:%02d] ", | |
473 | lcl->tm_hour, lcl->tm_min, lcl->tm_sec); | |
474 | bufp += strlen(bufp); | |
0f113f3e MC |
475 | |
476 | BIO_snprintf(bufp, BUF_REMAIN, "%5lu file=%s, line=%d, ", | |
477 | m->order, m->file, m->line); | |
478 | bufp += strlen(bufp); | |
479 | ||
9471f776 MC |
480 | tid.ltid = 0; |
481 | tid.tid = m->threadid; | |
482 | BIO_snprintf(bufp, BUF_REMAIN, "thread=%lu, ", tid.ltid); | |
bbd86bf5 | 483 | bufp += strlen(bufp); |
0f113f3e | 484 | |
5f0580cc AP |
485 | BIO_snprintf(bufp, BUF_REMAIN, "number=%d, address=%p\n", |
486 | m->num, m->addr); | |
0f113f3e MC |
487 | bufp += strlen(bufp); |
488 | ||
489 | BIO_puts(l->bio, buf); | |
490 | ||
491 | l->chunks++; | |
492 | l->bytes += m->num; | |
493 | ||
494 | amip = m->app_info; | |
495 | ami_cnt = 0; | |
bbd86bf5 | 496 | |
012c5408 | 497 | if (amip) { |
9471f776 | 498 | ti = amip->threadid; |
012c5408 RL |
499 | |
500 | do { | |
501 | int buf_len; | |
502 | int info_len; | |
503 | ||
504 | ami_cnt++; | |
505 | memset(buf, '>', ami_cnt); | |
9471f776 MC |
506 | tid.ltid = 0; |
507 | tid.tid = amip->threadid; | |
012c5408 RL |
508 | BIO_snprintf(buf + ami_cnt, sizeof buf - ami_cnt, |
509 | " thread=%lu, file=%s, line=%d, info=\"", | |
9471f776 | 510 | tid.ltid, amip->file, |
012c5408 | 511 | amip->line); |
0f113f3e | 512 | buf_len = strlen(buf); |
012c5408 RL |
513 | info_len = strlen(amip->info); |
514 | if (128 - buf_len - 3 < info_len) { | |
515 | memcpy(buf + buf_len, amip->info, 128 - buf_len - 3); | |
516 | buf_len = 128 - 3; | |
517 | } else { | |
7644a9ae | 518 | OPENSSL_strlcpy(buf + buf_len, amip->info, sizeof buf - buf_len); |
012c5408 RL |
519 | buf_len = strlen(buf); |
520 | } | |
521 | BIO_snprintf(buf + buf_len, sizeof buf - buf_len, "\"\n"); | |
0f113f3e | 522 | |
012c5408 | 523 | BIO_puts(l->bio, buf); |
0f113f3e | 524 | |
012c5408 RL |
525 | amip = amip->next; |
526 | } | |
9471f776 | 527 | while (amip && CRYPTO_THREAD_compare_id(amip->threadid, ti)); |
0f113f3e | 528 | } |
f7ccba3e | 529 | |
ef8ca6bd | 530 | #ifndef OPENSSL_NO_CRYPTO_MDEBUG_BACKTRACE |
012c5408 RL |
531 | { |
532 | size_t i; | |
533 | char **strings = backtrace_symbols(m->array, m->array_siz); | |
bbd86bf5 | 534 | |
012c5408 RL |
535 | for (i = 0; i < m->array_siz; i++) |
536 | fprintf(stderr, "##> %s\n", strings[i]); | |
012c5408 RL |
537 | free(strings); |
538 | } | |
539 | #endif | |
0f113f3e | 540 | } |
9ac42ed8 | 541 | |
2a056de8 | 542 | IMPLEMENT_LHASH_DOALL_ARG_CONST(MEM, MEM_LEAK); |
98d517c5 | 543 | |
4e482ae6 | 544 | int CRYPTO_mem_leaks(BIO *b) |
0f113f3e MC |
545 | { |
546 | MEM_LEAK ml; | |
547 | ||
1ee7b8b9 MC |
548 | /* |
549 | * OPENSSL_cleanup() will free the ex_data locks so we can't have any | |
550 | * ex_data hanging around | |
551 | */ | |
552 | bio_free_ex_data(b); | |
553 | ||
38a6d7f8 | 554 | /* Ensure all resources are released */ |
f672aee4 | 555 | OPENSSL_cleanup(); |
38a6d7f8 | 556 | |
c2e4e5d2 RL |
557 | if (!RUN_ONCE(&memdbg_init, do_memdbg_init)) |
558 | return -1; | |
9471f776 | 559 | |
bbd86bf5 | 560 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); |
0f113f3e MC |
561 | |
562 | ml.bio = b; | |
563 | ml.bytes = 0; | |
564 | ml.chunks = 0; | |
565 | if (mh != NULL) | |
2a056de8 | 566 | lh_MEM_doall_MEM_LEAK(mh, print_leak, &ml); |
b3895f42 | 567 | |
0f113f3e MC |
568 | if (ml.chunks != 0) { |
569 | BIO_printf(b, "%ld bytes leaked in %d chunks\n", ml.bytes, ml.chunks); | |
0f113f3e MC |
570 | } else { |
571 | /* | |
572 | * Make sure that, if we found no leaks, memory-leak debugging itself | |
573 | * does not introduce memory leaks (which might irritate external | |
574 | * debugging tools). (When someone enables leak checking, but does not | |
bbd86bf5 | 575 | * call this function, we declare it to be their fault.) |
0f113f3e MC |
576 | */ |
577 | int old_mh_mode; | |
578 | ||
9471f776 | 579 | CRYPTO_THREAD_write_lock(malloc_lock); |
0f113f3e MC |
580 | |
581 | /* | |
bbd86bf5 RS |
582 | * avoid deadlock when lh_free() uses CRYPTO_mem_debug_free(), which uses |
583 | * mem_check_on | |
0f113f3e MC |
584 | */ |
585 | old_mh_mode = mh_mode; | |
586 | mh_mode = CRYPTO_MEM_CHECK_OFF; | |
587 | ||
25aaa98a RS |
588 | lh_MEM_free(mh); |
589 | mh = NULL; | |
0f113f3e MC |
590 | |
591 | mh_mode = old_mh_mode; | |
9471f776 | 592 | CRYPTO_THREAD_unlock(malloc_lock); |
0f113f3e | 593 | } |
9471f776 MC |
594 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF); |
595 | ||
596 | /* Clean up locks etc */ | |
597 | CRYPTO_THREAD_cleanup_local(&appinfokey); | |
598 | CRYPTO_THREAD_lock_free(malloc_lock); | |
599 | CRYPTO_THREAD_lock_free(long_malloc_lock); | |
600 | malloc_lock = NULL; | |
601 | long_malloc_lock = NULL; | |
602 | ||
4e482ae6 | 603 | return ml.chunks == 0 ? 1 : 0; |
0f113f3e | 604 | } |
9ac42ed8 | 605 | |
bbd86bf5 | 606 | # ifndef OPENSSL_NO_STDIO |
4e482ae6 | 607 | int CRYPTO_mem_leaks_fp(FILE *fp) |
0f113f3e MC |
608 | { |
609 | BIO *b; | |
4e482ae6 | 610 | int ret; |
0f113f3e | 611 | |
0f113f3e MC |
612 | /* |
613 | * Need to turn off memory checking when allocated BIOs ... especially as | |
614 | * we're creating them at a time when we're trying to check we've not | |
615 | * left anything un-free()'d!! | |
616 | */ | |
bbd86bf5 | 617 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); |
0f113f3e | 618 | b = BIO_new(BIO_s_file()); |
bbd86bf5 | 619 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
90945fa3 | 620 | if (b == NULL) |
4e482ae6 | 621 | return -1; |
0f113f3e | 622 | BIO_set_fp(b, fp, BIO_NOCLOSE); |
4e482ae6 | 623 | ret = CRYPTO_mem_leaks(b); |
0f113f3e | 624 | BIO_free(b); |
4e482ae6 | 625 | return ret; |
0f113f3e | 626 | } |
bbd86bf5 | 627 | # endif |
65962686 | 628 | |
bbd86bf5 | 629 | #endif |