]>
Commit | Line | Data |
---|---|---|
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" |
9ac42ed8 RL |
14 | #include <openssl/crypto.h> |
15 | #include <openssl/buffer.h> | |
1ee7b8b9 | 16 | #include "internal/bio.h" |
9ac42ed8 | 17 | #include <openssl/lhash.h> |
ef8ca6bd RL |
18 | |
19 | #ifndef OPENSSL_NO_CRYPTO_MDEBUG_BACKTRACE | |
012c5408 RL |
20 | # include <execinfo.h> |
21 | #endif | |
9ac42ed8 | 22 | |
0f113f3e MC |
23 | /* |
24 | * The state changes to CRYPTO_MEM_CHECK_ON | CRYPTO_MEM_CHECK_ENABLE when | |
25 | * the application asks for it (usually after library initialisation for | |
26 | * which no book-keeping is desired). State CRYPTO_MEM_CHECK_ON exists only | |
27 | * temporarily when the library thinks that certain allocations should not be | |
28 | * checked (e.g. the data structures used for memory checking). It is not | |
29 | * suitable as an initial state: the library will unexpectedly enable memory | |
30 | * checking when it executes one of those sections that want to disable | |
31 | * checking temporarily. State CRYPTO_MEM_CHECK_ENABLE without ..._ON makes | |
32 | * no sense whatsoever. | |
9ac42ed8 | 33 | */ |
c2e27310 | 34 | #ifndef OPENSSL_NO_CRYPTO_MDEBUG |
bbd86bf5 | 35 | static int mh_mode = CRYPTO_MEM_CHECK_OFF; |
c2e27310 | 36 | #endif |
9ac42ed8 | 37 | |
6ac11bd0 | 38 | #ifndef OPENSSL_NO_CRYPTO_MDEBUG |
0cd08cce | 39 | static unsigned long order = 0; /* number of memory requests */ |
3c1d6bbc | 40 | |
c80fd6b2 MC |
41 | /*- |
42 | * For application-defined information (static C-string `info') | |
0cd08cce BM |
43 | * to be displayed in memory leak list. |
44 | * Each thread has its own stack. For applications, there is | |
4fae386c RS |
45 | * OPENSSL_mem_debug_push("...") to push an entry, |
46 | * OPENSSL_mem_debug_pop() to pop an entry, | |
0cd08cce | 47 | */ |
e6b5c341 | 48 | struct app_mem_info_st { |
9471f776 | 49 | CRYPTO_THREAD_ID threadid; |
0f113f3e MC |
50 | const char *file; |
51 | int line; | |
52 | const char *info; | |
53 | struct app_mem_info_st *next; /* tail of thread's stack */ | |
54 | int references; | |
e6b5c341 | 55 | }; |
9ac42ed8 | 56 | |
9471f776 MC |
57 | static CRYPTO_ONCE memdbg_init = CRYPTO_ONCE_STATIC_INIT; |
58 | static CRYPTO_RWLOCK *malloc_lock = NULL; | |
59 | static CRYPTO_RWLOCK *long_malloc_lock = NULL; | |
60 | static CRYPTO_THREAD_LOCAL appinfokey; | |
9ac42ed8 | 61 | |
0cd08cce | 62 | /* memory-block description */ |
e6b5c341 | 63 | struct mem_st { |
0f113f3e MC |
64 | void *addr; |
65 | int num; | |
66 | const char *file; | |
67 | int line; | |
9471f776 | 68 | CRYPTO_THREAD_ID threadid; |
0f113f3e MC |
69 | unsigned long order; |
70 | time_t time; | |
71 | APP_INFO *app_info; | |
ef8ca6bd | 72 | #ifndef OPENSSL_NO_CRYPTO_MDEBUG_BACKTRACE |
012c5408 RL |
73 | void *array[30]; |
74 | size_t array_siz; | |
75 | #endif | |
e6b5c341 DSH |
76 | }; |
77 | ||
78 | static LHASH_OF(MEM) *mh = NULL; /* hash-table of memory requests (address as | |
79 | * key); access requires MALLOC2 lock */ | |
0f113f3e | 80 | |
bbd86bf5 RS |
81 | /* num_disable > 0 iff mh_mode == CRYPTO_MEM_CHECK_ON (w/o ..._ENABLE) */ |
82 | static unsigned int num_disable = 0; | |
48fc582f | 83 | |
0f113f3e | 84 | /* |
9471f776 | 85 | * Valid iff num_disable > 0. long_malloc_lock is locked exactly in this |
4c329696 | 86 | * case (by the thread named in disabling_thread). |
5f834ab1 | 87 | */ |
9471f776 MC |
88 | static CRYPTO_THREAD_ID disabling_threadid; |
89 | ||
90 | static void do_memdbg_init(void) | |
91 | { | |
92 | malloc_lock = CRYPTO_THREAD_lock_new(); | |
93 | long_malloc_lock = CRYPTO_THREAD_lock_new(); | |
94 | CRYPTO_THREAD_init_local(&appinfokey, NULL); | |
95 | } | |
9ac42ed8 | 96 | |
9dc61049 | 97 | static void app_info_free(APP_INFO *inf) |
0f113f3e | 98 | { |
25aaa98a RS |
99 | if (!inf) |
100 | return; | |
0f113f3e | 101 | if (--(inf->references) <= 0) { |
25aaa98a | 102 | app_info_free(inf->next); |
0f113f3e MC |
103 | OPENSSL_free(inf); |
104 | } | |
105 | } | |
bbd86bf5 | 106 | #endif |
9dc61049 | 107 | |
9ac42ed8 | 108 | int CRYPTO_mem_ctrl(int mode) |
0f113f3e | 109 | { |
c2e27310 | 110 | #ifdef OPENSSL_NO_CRYPTO_MDEBUG |
bbd86bf5 RS |
111 | return mode - mode; |
112 | #else | |
0f113f3e MC |
113 | int ret = mh_mode; |
114 | ||
9471f776 MC |
115 | CRYPTO_THREAD_run_once(&memdbg_init, do_memdbg_init); |
116 | ||
117 | CRYPTO_THREAD_write_lock(malloc_lock); | |
0f113f3e | 118 | switch (mode) { |
bbd86bf5 RS |
119 | default: |
120 | break; | |
121 | ||
122 | case CRYPTO_MEM_CHECK_ON: | |
0f113f3e MC |
123 | mh_mode = CRYPTO_MEM_CHECK_ON | CRYPTO_MEM_CHECK_ENABLE; |
124 | num_disable = 0; | |
125 | break; | |
bbd86bf5 RS |
126 | |
127 | case CRYPTO_MEM_CHECK_OFF: | |
0f113f3e | 128 | mh_mode = 0; |
bbd86bf5 | 129 | num_disable = 0; |
0f113f3e MC |
130 | break; |
131 | ||
bbd86bf5 RS |
132 | /* switch off temporarily (for library-internal use): */ |
133 | case CRYPTO_MEM_CHECK_DISABLE: | |
0f113f3e | 134 | if (mh_mode & CRYPTO_MEM_CHECK_ON) { |
9471f776 MC |
135 | CRYPTO_THREAD_ID cur = CRYPTO_THREAD_get_current_id(); |
136 | /* see if we don't have long_malloc_lock already */ | |
0f113f3e | 137 | if (!num_disable |
9471f776 | 138 | || !CRYPTO_THREAD_compare_id(disabling_threadid, cur)) { |
0f113f3e | 139 | /* |
9471f776 MC |
140 | * Long-time lock long_malloc_lock must not be claimed |
141 | * while we're holding malloc_lock, or we'll deadlock | |
142 | * if somebody else holds long_malloc_lock (and cannot | |
0f113f3e MC |
143 | * release it because we block entry to this function). Give |
144 | * them a chance, first, and then claim the locks in | |
145 | * appropriate order (long-time lock first). | |
146 | */ | |
9471f776 | 147 | CRYPTO_THREAD_unlock(malloc_lock); |
0f113f3e | 148 | /* |
9471f776 MC |
149 | * Note that after we have waited for long_malloc_lock and |
150 | * malloc_lock, we'll still be in the right "case" and | |
0f113f3e MC |
151 | * "if" branch because MemCheck_start and MemCheck_stop may |
152 | * never be used while there are multiple OpenSSL threads. | |
153 | */ | |
9471f776 MC |
154 | CRYPTO_THREAD_write_lock(long_malloc_lock); |
155 | CRYPTO_THREAD_write_lock(malloc_lock); | |
0f113f3e | 156 | mh_mode &= ~CRYPTO_MEM_CHECK_ENABLE; |
9471f776 | 157 | disabling_threadid = cur; |
0f113f3e MC |
158 | } |
159 | num_disable++; | |
160 | } | |
161 | break; | |
bbd86bf5 RS |
162 | |
163 | case CRYPTO_MEM_CHECK_ENABLE: | |
0f113f3e MC |
164 | if (mh_mode & CRYPTO_MEM_CHECK_ON) { |
165 | if (num_disable) { /* always true, or something is going wrong */ | |
166 | num_disable--; | |
167 | if (num_disable == 0) { | |
168 | mh_mode |= CRYPTO_MEM_CHECK_ENABLE; | |
9471f776 | 169 | CRYPTO_THREAD_unlock(long_malloc_lock); |
0f113f3e MC |
170 | } |
171 | } | |
172 | } | |
173 | break; | |
0f113f3e | 174 | } |
9471f776 | 175 | CRYPTO_THREAD_unlock(malloc_lock); |
0f113f3e | 176 | return (ret); |
bbd86bf5 | 177 | #endif |
0f113f3e | 178 | } |
9ac42ed8 | 179 | |
6ac11bd0 | 180 | #ifndef OPENSSL_NO_CRYPTO_MDEBUG |
bbd86bf5 RS |
181 | |
182 | static int mem_check_on(void) | |
0f113f3e MC |
183 | { |
184 | int ret = 0; | |
a0605744 | 185 | CRYPTO_THREAD_ID cur; |
9ac42ed8 | 186 | |
0f113f3e | 187 | if (mh_mode & CRYPTO_MEM_CHECK_ON) { |
9471f776 MC |
188 | CRYPTO_THREAD_run_once(&memdbg_init, do_memdbg_init); |
189 | ||
a0605744 | 190 | cur = CRYPTO_THREAD_get_current_id(); |
9471f776 | 191 | CRYPTO_THREAD_read_lock(malloc_lock); |
9ac42ed8 | 192 | |
0f113f3e | 193 | ret = (mh_mode & CRYPTO_MEM_CHECK_ENABLE) |
9471f776 | 194 | || !CRYPTO_THREAD_compare_id(disabling_threadid, cur); |
9ac42ed8 | 195 | |
9471f776 | 196 | CRYPTO_THREAD_unlock(malloc_lock); |
0f113f3e MC |
197 | } |
198 | return (ret); | |
199 | } | |
9ac42ed8 | 200 | |
3c1d6bbc | 201 | static int mem_cmp(const MEM *a, const MEM *b) |
0f113f3e | 202 | { |
1875e6db | 203 | #ifdef _WIN64 |
0f113f3e MC |
204 | const char *ap = (const char *)a->addr, *bp = (const char *)b->addr; |
205 | if (ap == bp) | |
206 | return 0; | |
207 | else if (ap > bp) | |
208 | return 1; | |
209 | else | |
210 | return -1; | |
1875e6db | 211 | #else |
0f113f3e | 212 | return (const char *)a->addr - (const char *)b->addr; |
1875e6db | 213 | #endif |
0f113f3e MC |
214 | } |
215 | ||
3c1d6bbc | 216 | static unsigned long mem_hash(const MEM *a) |
0f113f3e | 217 | { |
5f0580cc | 218 | size_t ret; |
9ac42ed8 | 219 | |
5f0580cc | 220 | ret = (size_t)a->addr; |
0f113f3e MC |
221 | |
222 | ret = ret * 17851 + (ret >> 14) * 7 + (ret >> 4) * 251; | |
223 | return (ret); | |
224 | } | |
9ac42ed8 | 225 | |
96e25c49 PC |
226 | /* returns 1 if there was an info to pop, 0 if the stack was empty. */ |
227 | static int pop_info(void) | |
0f113f3e | 228 | { |
96e25c49 | 229 | APP_INFO *current = NULL; |
0f113f3e | 230 | |
9471f776 MC |
231 | CRYPTO_THREAD_run_once(&memdbg_init, do_memdbg_init); |
232 | current = (APP_INFO *)CRYPTO_THREAD_get_local(&appinfokey); | |
233 | if (current != NULL) { | |
234 | APP_INFO *next = current->next; | |
0f113f3e | 235 | |
9471f776 MC |
236 | if (next != NULL) { |
237 | next->references++; | |
238 | CRYPTO_THREAD_set_local(&appinfokey, next); | |
239 | } else { | |
240 | CRYPTO_THREAD_set_local(&appinfokey, NULL); | |
241 | } | |
242 | if (--(current->references) <= 0) { | |
243 | current->next = NULL; | |
244 | if (next != NULL) | |
245 | next->references--; | |
246 | OPENSSL_free(current); | |
0f113f3e | 247 | } |
9471f776 | 248 | return 1; |
0f113f3e | 249 | } |
96e25c49 | 250 | return 0; |
0f113f3e | 251 | } |
9ac42ed8 | 252 | |
4fae386c | 253 | int CRYPTO_mem_debug_push(const char *info, const char *file, int line) |
0f113f3e MC |
254 | { |
255 | APP_INFO *ami, *amim; | |
256 | int ret = 0; | |
257 | ||
bbd86bf5 RS |
258 | if (mem_check_on()) { |
259 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); | |
0f113f3e | 260 | |
9471f776 MC |
261 | CRYPTO_THREAD_run_once(&memdbg_init, do_memdbg_init); |
262 | ||
bbd86bf5 | 263 | if ((ami = OPENSSL_malloc(sizeof(*ami))) == NULL) |
0f113f3e | 264 | goto err; |
0f113f3e | 265 | |
9471f776 | 266 | ami->threadid = CRYPTO_THREAD_get_current_id(); |
0f113f3e MC |
267 | ami->file = file; |
268 | ami->line = line; | |
269 | ami->info = info; | |
270 | ami->references = 1; | |
271 | ami->next = NULL; | |
272 | ||
9471f776 MC |
273 | amim = (APP_INFO *)CRYPTO_THREAD_get_local(&appinfokey); |
274 | CRYPTO_THREAD_set_local(&appinfokey, ami); | |
275 | ||
276 | if (amim != NULL) | |
0f113f3e | 277 | ami->next = amim; |
bbd86bf5 | 278 | ret = 1; |
9ac42ed8 | 279 | err: |
bbd86bf5 | 280 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
0f113f3e | 281 | } |
9ac42ed8 | 282 | |
0f113f3e MC |
283 | return (ret); |
284 | } | |
9ac42ed8 | 285 | |
4fae386c | 286 | int CRYPTO_mem_debug_pop(void) |
0f113f3e MC |
287 | { |
288 | int ret = 0; | |
9ac42ed8 | 289 | |
bbd86bf5 RS |
290 | if (mem_check_on()) { |
291 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); | |
96e25c49 | 292 | ret = pop_info(); |
bbd86bf5 | 293 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
0f113f3e MC |
294 | } |
295 | return (ret); | |
296 | } | |
9ac42ed8 | 297 | |
0f113f3e | 298 | static unsigned long break_order_num = 0; |
bbd86bf5 RS |
299 | |
300 | void CRYPTO_mem_debug_malloc(void *addr, size_t num, int before_p, | |
301 | const char *file, int line) | |
0f113f3e MC |
302 | { |
303 | MEM *m, *mm; | |
9471f776 | 304 | APP_INFO *amim; |
0f113f3e MC |
305 | |
306 | switch (before_p & 127) { | |
307 | case 0: | |
308 | break; | |
309 | case 1: | |
310 | if (addr == NULL) | |
311 | break; | |
312 | ||
bbd86bf5 RS |
313 | if (mem_check_on()) { |
314 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); | |
9471f776 MC |
315 | |
316 | CRYPTO_THREAD_run_once(&memdbg_init, do_memdbg_init); | |
317 | ||
b4faea50 | 318 | if ((m = OPENSSL_malloc(sizeof(*m))) == NULL) { |
0f113f3e | 319 | OPENSSL_free(addr); |
bbd86bf5 | 320 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
0f113f3e MC |
321 | return; |
322 | } | |
323 | if (mh == NULL) { | |
62d0577e | 324 | if ((mh = lh_MEM_new(mem_hash, mem_cmp)) == NULL) { |
0f113f3e MC |
325 | OPENSSL_free(addr); |
326 | OPENSSL_free(m); | |
327 | addr = NULL; | |
328 | goto err; | |
329 | } | |
330 | } | |
331 | ||
332 | m->addr = addr; | |
333 | m->file = file; | |
334 | m->line = line; | |
335 | m->num = num; | |
9471f776 | 336 | m->threadid = CRYPTO_THREAD_get_current_id(); |
0f113f3e MC |
337 | |
338 | if (order == break_order_num) { | |
339 | /* BREAK HERE */ | |
340 | m->order = order; | |
341 | } | |
342 | m->order = order++; | |
ef8ca6bd | 343 | # ifndef OPENSSL_NO_CRYPTO_MDEBUG_BACKTRACE |
012c5408 | 344 | m->array_siz = backtrace(m->array, OSSL_NELEM(m->array)); |
bbd86bf5 RS |
345 | # endif |
346 | m->time = time(NULL); | |
0f113f3e | 347 | |
9471f776 MC |
348 | amim = (APP_INFO *)CRYPTO_THREAD_get_local(&appinfokey); |
349 | m->app_info = amim; | |
350 | if (amim != NULL) | |
0f113f3e | 351 | amim->references++; |
0f113f3e MC |
352 | |
353 | if ((mm = lh_MEM_insert(mh, m)) != NULL) { | |
354 | /* Not good, but don't sweat it */ | |
355 | if (mm->app_info != NULL) { | |
356 | mm->app_info->references--; | |
357 | } | |
358 | OPENSSL_free(mm); | |
359 | } | |
360 | err: | |
bbd86bf5 | 361 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
0f113f3e MC |
362 | } |
363 | break; | |
364 | } | |
365 | return; | |
366 | } | |
9ac42ed8 | 367 | |
05c7b163 RL |
368 | void CRYPTO_mem_debug_free(void *addr, int before_p, |
369 | const char *file, int line) | |
0f113f3e MC |
370 | { |
371 | MEM m, *mp; | |
372 | ||
373 | switch (before_p) { | |
374 | case 0: | |
375 | if (addr == NULL) | |
376 | break; | |
377 | ||
bbd86bf5 RS |
378 | if (mem_check_on() && (mh != NULL)) { |
379 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); | |
0f113f3e MC |
380 | |
381 | m.addr = addr; | |
382 | mp = lh_MEM_delete(mh, &m); | |
383 | if (mp != NULL) { | |
25aaa98a | 384 | app_info_free(mp->app_info); |
0f113f3e MC |
385 | OPENSSL_free(mp); |
386 | } | |
387 | ||
bbd86bf5 | 388 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
0f113f3e MC |
389 | } |
390 | break; | |
391 | case 1: | |
392 | break; | |
393 | } | |
394 | } | |
9ac42ed8 | 395 | |
bbd86bf5 RS |
396 | void CRYPTO_mem_debug_realloc(void *addr1, void *addr2, size_t num, |
397 | int before_p, const char *file, int line) | |
0f113f3e MC |
398 | { |
399 | MEM m, *mp; | |
9ac42ed8 | 400 | |
0f113f3e MC |
401 | switch (before_p) { |
402 | case 0: | |
403 | break; | |
404 | case 1: | |
405 | if (addr2 == NULL) | |
406 | break; | |
407 | ||
408 | if (addr1 == NULL) { | |
bbd86bf5 | 409 | CRYPTO_mem_debug_malloc(addr2, num, 128 | before_p, file, line); |
0f113f3e MC |
410 | break; |
411 | } | |
412 | ||
bbd86bf5 RS |
413 | if (mem_check_on()) { |
414 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); | |
0f113f3e MC |
415 | |
416 | m.addr = addr1; | |
417 | mp = lh_MEM_delete(mh, &m); | |
418 | if (mp != NULL) { | |
0f113f3e MC |
419 | mp->addr = addr2; |
420 | mp->num = num; | |
ef8ca6bd | 421 | #ifndef OPENSSL_NO_CRYPTO_MDEBUG_BACKTRACE |
012c5408 RL |
422 | mp->array_siz = backtrace(mp->array, OSSL_NELEM(mp->array)); |
423 | #endif | |
0f113f3e MC |
424 | (void)lh_MEM_insert(mh, mp); |
425 | } | |
426 | ||
bbd86bf5 | 427 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
0f113f3e MC |
428 | } |
429 | break; | |
430 | } | |
431 | return; | |
432 | } | |
433 | ||
434 | typedef struct mem_leak_st { | |
435 | BIO *bio; | |
436 | int chunks; | |
437 | long bytes; | |
438 | } MEM_LEAK; | |
9ac42ed8 | 439 | |
2a056de8 | 440 | static void print_leak(const MEM *m, MEM_LEAK *l) |
0f113f3e MC |
441 | { |
442 | char buf[1024]; | |
443 | char *bufp = buf; | |
444 | APP_INFO *amip; | |
445 | int ami_cnt; | |
446 | struct tm *lcl = NULL; | |
9471f776 MC |
447 | /* |
448 | * Convert between CRYPTO_THREAD_ID (which could be anything at all) and | |
449 | * a long. This may not be meaningful depending on what CRYPTO_THREAD_ID is | |
450 | * but hopefully should give something sensible on most platforms | |
451 | */ | |
452 | union { | |
453 | CRYPTO_THREAD_ID tid; | |
454 | unsigned long ltid; | |
455 | } tid; | |
456 | CRYPTO_THREAD_ID ti; | |
9ac42ed8 | 457 | |
d420ac2c RL |
458 | #define BUF_REMAIN (sizeof buf - (size_t)(bufp - buf)) |
459 | ||
bbd86bf5 RS |
460 | lcl = localtime(&m->time); |
461 | BIO_snprintf(bufp, BUF_REMAIN, "[%02d:%02d:%02d] ", | |
462 | lcl->tm_hour, lcl->tm_min, lcl->tm_sec); | |
463 | bufp += strlen(bufp); | |
0f113f3e MC |
464 | |
465 | BIO_snprintf(bufp, BUF_REMAIN, "%5lu file=%s, line=%d, ", | |
466 | m->order, m->file, m->line); | |
467 | bufp += strlen(bufp); | |
468 | ||
9471f776 MC |
469 | tid.ltid = 0; |
470 | tid.tid = m->threadid; | |
471 | BIO_snprintf(bufp, BUF_REMAIN, "thread=%lu, ", tid.ltid); | |
bbd86bf5 | 472 | bufp += strlen(bufp); |
0f113f3e | 473 | |
5f0580cc AP |
474 | BIO_snprintf(bufp, BUF_REMAIN, "number=%d, address=%p\n", |
475 | m->num, m->addr); | |
0f113f3e MC |
476 | bufp += strlen(bufp); |
477 | ||
478 | BIO_puts(l->bio, buf); | |
479 | ||
480 | l->chunks++; | |
481 | l->bytes += m->num; | |
482 | ||
483 | amip = m->app_info; | |
484 | ami_cnt = 0; | |
bbd86bf5 | 485 | |
012c5408 | 486 | if (amip) { |
9471f776 | 487 | ti = amip->threadid; |
012c5408 RL |
488 | |
489 | do { | |
490 | int buf_len; | |
491 | int info_len; | |
492 | ||
493 | ami_cnt++; | |
494 | memset(buf, '>', ami_cnt); | |
9471f776 MC |
495 | tid.ltid = 0; |
496 | tid.tid = amip->threadid; | |
012c5408 RL |
497 | BIO_snprintf(buf + ami_cnt, sizeof buf - ami_cnt, |
498 | " thread=%lu, file=%s, line=%d, info=\"", | |
9471f776 | 499 | tid.ltid, amip->file, |
012c5408 | 500 | amip->line); |
0f113f3e | 501 | buf_len = strlen(buf); |
012c5408 RL |
502 | info_len = strlen(amip->info); |
503 | if (128 - buf_len - 3 < info_len) { | |
504 | memcpy(buf + buf_len, amip->info, 128 - buf_len - 3); | |
505 | buf_len = 128 - 3; | |
506 | } else { | |
7644a9ae | 507 | OPENSSL_strlcpy(buf + buf_len, amip->info, sizeof buf - buf_len); |
012c5408 RL |
508 | buf_len = strlen(buf); |
509 | } | |
510 | BIO_snprintf(buf + buf_len, sizeof buf - buf_len, "\"\n"); | |
0f113f3e | 511 | |
012c5408 | 512 | BIO_puts(l->bio, buf); |
0f113f3e | 513 | |
012c5408 RL |
514 | amip = amip->next; |
515 | } | |
9471f776 | 516 | while (amip && CRYPTO_THREAD_compare_id(amip->threadid, ti)); |
0f113f3e | 517 | } |
f7ccba3e | 518 | |
ef8ca6bd | 519 | #ifndef OPENSSL_NO_CRYPTO_MDEBUG_BACKTRACE |
012c5408 RL |
520 | { |
521 | size_t i; | |
522 | char **strings = backtrace_symbols(m->array, m->array_siz); | |
bbd86bf5 | 523 | |
012c5408 RL |
524 | for (i = 0; i < m->array_siz; i++) |
525 | fprintf(stderr, "##> %s\n", strings[i]); | |
012c5408 RL |
526 | free(strings); |
527 | } | |
528 | #endif | |
0f113f3e | 529 | } |
9ac42ed8 | 530 | |
2a056de8 | 531 | IMPLEMENT_LHASH_DOALL_ARG_CONST(MEM, MEM_LEAK); |
98d517c5 | 532 | |
4e482ae6 | 533 | int CRYPTO_mem_leaks(BIO *b) |
0f113f3e MC |
534 | { |
535 | MEM_LEAK ml; | |
536 | ||
1ee7b8b9 MC |
537 | /* |
538 | * OPENSSL_cleanup() will free the ex_data locks so we can't have any | |
539 | * ex_data hanging around | |
540 | */ | |
541 | bio_free_ex_data(b); | |
542 | ||
38a6d7f8 | 543 | /* Ensure all resources are released */ |
f672aee4 | 544 | OPENSSL_cleanup(); |
38a6d7f8 | 545 | |
9471f776 MC |
546 | CRYPTO_THREAD_run_once(&memdbg_init, do_memdbg_init); |
547 | ||
bbd86bf5 | 548 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); |
0f113f3e MC |
549 | |
550 | ml.bio = b; | |
551 | ml.bytes = 0; | |
552 | ml.chunks = 0; | |
553 | if (mh != NULL) | |
2a056de8 | 554 | lh_MEM_doall_MEM_LEAK(mh, print_leak, &ml); |
b3895f42 | 555 | |
0f113f3e MC |
556 | if (ml.chunks != 0) { |
557 | BIO_printf(b, "%ld bytes leaked in %d chunks\n", ml.bytes, ml.chunks); | |
0f113f3e MC |
558 | } else { |
559 | /* | |
560 | * Make sure that, if we found no leaks, memory-leak debugging itself | |
561 | * does not introduce memory leaks (which might irritate external | |
562 | * debugging tools). (When someone enables leak checking, but does not | |
bbd86bf5 | 563 | * call this function, we declare it to be their fault.) |
0f113f3e MC |
564 | */ |
565 | int old_mh_mode; | |
566 | ||
9471f776 | 567 | CRYPTO_THREAD_write_lock(malloc_lock); |
0f113f3e MC |
568 | |
569 | /* | |
bbd86bf5 RS |
570 | * avoid deadlock when lh_free() uses CRYPTO_mem_debug_free(), which uses |
571 | * mem_check_on | |
0f113f3e MC |
572 | */ |
573 | old_mh_mode = mh_mode; | |
574 | mh_mode = CRYPTO_MEM_CHECK_OFF; | |
575 | ||
25aaa98a RS |
576 | lh_MEM_free(mh); |
577 | mh = NULL; | |
0f113f3e MC |
578 | |
579 | mh_mode = old_mh_mode; | |
9471f776 | 580 | CRYPTO_THREAD_unlock(malloc_lock); |
0f113f3e | 581 | } |
9471f776 MC |
582 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF); |
583 | ||
584 | /* Clean up locks etc */ | |
585 | CRYPTO_THREAD_cleanup_local(&appinfokey); | |
586 | CRYPTO_THREAD_lock_free(malloc_lock); | |
587 | CRYPTO_THREAD_lock_free(long_malloc_lock); | |
588 | malloc_lock = NULL; | |
589 | long_malloc_lock = NULL; | |
590 | ||
4e482ae6 | 591 | return ml.chunks == 0 ? 1 : 0; |
0f113f3e | 592 | } |
9ac42ed8 | 593 | |
bbd86bf5 | 594 | # ifndef OPENSSL_NO_STDIO |
4e482ae6 | 595 | int CRYPTO_mem_leaks_fp(FILE *fp) |
0f113f3e MC |
596 | { |
597 | BIO *b; | |
4e482ae6 | 598 | int ret; |
0f113f3e | 599 | |
0f113f3e MC |
600 | /* |
601 | * Need to turn off memory checking when allocated BIOs ... especially as | |
602 | * we're creating them at a time when we're trying to check we've not | |
603 | * left anything un-free()'d!! | |
604 | */ | |
bbd86bf5 | 605 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); |
0f113f3e | 606 | b = BIO_new(BIO_s_file()); |
bbd86bf5 | 607 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); |
90945fa3 | 608 | if (b == NULL) |
4e482ae6 | 609 | return -1; |
0f113f3e | 610 | BIO_set_fp(b, fp, BIO_NOCLOSE); |
4e482ae6 | 611 | ret = CRYPTO_mem_leaks(b); |
0f113f3e | 612 | BIO_free(b); |
4e482ae6 | 613 | return ret; |
0f113f3e | 614 | } |
bbd86bf5 | 615 | # endif |
65962686 | 616 | |
bbd86bf5 | 617 | #endif |