| /* crypto/mem_dbg.c */ |
| /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
| * All rights reserved. |
| * |
| * This package is an SSL implementation written |
| * by Eric Young (eay@cryptsoft.com). |
| * The implementation was written so as to conform with Netscapes SSL. |
| * |
| * This library is free for commercial and non-commercial use as long as |
| * the following conditions are aheared to. The following conditions |
| * apply to all code found in this distribution, be it the RC4, RSA, |
| * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
| * included with this distribution is covered by the same copyright terms |
| * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
| * |
| * Copyright remains Eric Young's, and as such any Copyright notices in |
| * the code are not to be removed. |
| * If this package is used in a product, Eric Young should be given attribution |
| * as the author of the parts of the library used. |
| * This can be in the form of a textual message at program startup or |
| * in documentation (online or textual) provided with the package. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. All advertising materials mentioning features or use of this software |
| * must display the following acknowledgement: |
| * "This product includes cryptographic software written by |
| * Eric Young (eay@cryptsoft.com)" |
| * The word 'cryptographic' can be left out if the rouines from the library |
| * being used are not cryptographic related :-). |
| * 4. If you include any Windows specific code (or a derivative thereof) from |
| * the apps directory (application code) you must include an acknowledgement: |
| * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
| * |
| * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * The licence and distribution terms for any publically available version or |
| * derivative of this code cannot be changed. i.e. this code cannot simply be |
| * copied and put under another distribution licence |
| * [including the GNU Public Licence.] |
| */ |
| /* ==================================================================== |
| * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. All advertising materials mentioning features or use of this |
| * software must display the following acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" |
| * |
| * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| * endorse or promote products derived from this software without |
| * prior written permission. For written permission, please contact |
| * openssl-core@openssl.org. |
| * |
| * 5. Products derived from this software may not be called "OpenSSL" |
| * nor may "OpenSSL" appear in their names without prior written |
| * permission of the OpenSSL Project. |
| * |
| * 6. Redistributions of any form whatsoever must retain the following |
| * acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit (http://www.openssl.org/)" |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| * OF THE POSSIBILITY OF SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This product includes cryptographic software written by Eric Young |
| * (eay@cryptsoft.com). This product includes software written by Tim |
| * Hudson (tjh@cryptsoft.com). |
| * |
| */ |
| |
| #include <openssl/opensslconf.h> |
| #if defined(OPENSSL_SYS_STARBOARD) |
| #include "starboard/client_porting/poem/eztime_poem.h" |
| #else |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <time.h> |
| #endif // !defined(OPENSSL_SYS_STARBOARD) |
| #include "cryptlib.h" |
| #include <openssl/crypto.h> |
| #include <openssl/buffer.h> |
| #include <openssl/bio.h> |
| #include <openssl/lhash.h> |
| |
| static int mh_mode = CRYPTO_MEM_CHECK_OFF; |
| /* |
| * The state changes to CRYPTO_MEM_CHECK_ON | CRYPTO_MEM_CHECK_ENABLE when |
| * the application asks for it (usually after library initialisation for |
| * which no book-keeping is desired). State CRYPTO_MEM_CHECK_ON exists only |
| * temporarily when the library thinks that certain allocations should not be |
| * checked (e.g. the data structures used for memory checking). It is not |
| * suitable as an initial state: the library will unexpectedly enable memory |
| * checking when it executes one of those sections that want to disable |
| * checking temporarily. State CRYPTO_MEM_CHECK_ENABLE without ..._ON makes |
| * no sense whatsoever. |
| */ |
| |
| static unsigned long order = 0; /* number of memory requests */ |
| |
| DECLARE_LHASH_OF(MEM); |
| static LHASH_OF(MEM) *mh = NULL; /* hash-table of memory requests (address as |
| * key); access requires MALLOC2 lock */ |
| |
| typedef struct app_mem_info_st |
| /*- |
| * For application-defined information (static C-string `info') |
| * to be displayed in memory leak list. |
| * Each thread has its own stack. For applications, there is |
| * CRYPTO_push_info("...") to push an entry, |
| * CRYPTO_pop_info() to pop an entry, |
| * CRYPTO_remove_all_info() to pop all entries. |
| */ |
| { |
| CRYPTO_THREADID threadid; |
| const char *file; |
| int line; |
| const char *info; |
| struct app_mem_info_st *next; /* tail of thread's stack */ |
| int references; |
| } APP_INFO; |
| |
| static void app_info_free(APP_INFO *); |
| |
| DECLARE_LHASH_OF(APP_INFO); |
| static LHASH_OF(APP_INFO) *amih = NULL; /* hash-table with those |
| * app_mem_info_st's that are at the |
| * top of their thread's stack (with |
| * `thread' as key); access requires |
| * MALLOC2 lock */ |
| |
| typedef struct mem_st |
| /* memory-block description */ |
| { |
| void *addr; |
| int num; |
| const char *file; |
| int line; |
| CRYPTO_THREADID threadid; |
| unsigned long order; |
| #if defined(OPENSSL_SYS_STARBOARD) |
| SbTime time; |
| #else |
| OPENSSL_port_time_t time; |
| #endif |
| APP_INFO *app_info; |
| } MEM; |
| |
| static long options = /* extra information to be recorded */ |
| #if defined(CRYPTO_MDEBUG_TIME) || defined(CRYPTO_MDEBUG_ALL) |
| V_CRYPTO_MDEBUG_TIME | |
| #endif |
| #if defined(CRYPTO_MDEBUG_THREAD) || defined(CRYPTO_MDEBUG_ALL) |
| V_CRYPTO_MDEBUG_THREAD | |
| #endif |
| 0; |
| |
| static unsigned int num_disable = 0; /* num_disable > 0 iff mh_mode == |
| * CRYPTO_MEM_CHECK_ON (w/o ..._ENABLE) */ |
| |
| /* |
| * Valid iff num_disable > 0. CRYPTO_LOCK_MALLOC2 is locked exactly in this |
| * case (by the thread named in disabling_thread). |
| */ |
| static CRYPTO_THREADID disabling_threadid; |
| |
| static void app_info_free(APP_INFO *inf) |
| { |
| if (--(inf->references) <= 0) { |
| if (inf->next != NULL) { |
| app_info_free(inf->next); |
| } |
| OPENSSL_free(inf); |
| } |
| } |
| |
| int CRYPTO_mem_ctrl(int mode) |
| { |
| int ret = mh_mode; |
| |
| CRYPTO_w_lock(CRYPTO_LOCK_MALLOC); |
| switch (mode) { |
| /* |
| * for applications (not to be called while multiple threads use the |
| * library): |
| */ |
| case CRYPTO_MEM_CHECK_ON: /* aka MemCheck_start() */ |
| mh_mode = CRYPTO_MEM_CHECK_ON | CRYPTO_MEM_CHECK_ENABLE; |
| num_disable = 0; |
| break; |
| case CRYPTO_MEM_CHECK_OFF: /* aka MemCheck_stop() */ |
| mh_mode = 0; |
| num_disable = 0; /* should be true *before* MemCheck_stop is |
| * used, or there'll be a lot of confusion */ |
| break; |
| |
| /* switch off temporarily (for library-internal use): */ |
| case CRYPTO_MEM_CHECK_DISABLE: /* aka MemCheck_off() */ |
| if (mh_mode & CRYPTO_MEM_CHECK_ON) { |
| CRYPTO_THREADID cur; |
| CRYPTO_THREADID_current(&cur); |
| /* see if we don't have the MALLOC2 lock already */ |
| if (!num_disable |
| || CRYPTO_THREADID_cmp(&disabling_threadid, &cur)) { |
| /* |
| * Long-time lock CRYPTO_LOCK_MALLOC2 must not be claimed |
| * while we're holding CRYPTO_LOCK_MALLOC, or we'll deadlock |
| * if somebody else holds CRYPTO_LOCK_MALLOC2 (and cannot |
| * release it because we block entry to this function). Give |
| * them a chance, first, and then claim the locks in |
| * appropriate order (long-time lock first). |
| */ |
| CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC); |
| /* |
| * Note that after we have waited for CRYPTO_LOCK_MALLOC2 and |
| * CRYPTO_LOCK_MALLOC, we'll still be in the right "case" and |
| * "if" branch because MemCheck_start and MemCheck_stop may |
| * never be used while there are multiple OpenSSL threads. |
| */ |
| CRYPTO_w_lock(CRYPTO_LOCK_MALLOC2); |
| CRYPTO_w_lock(CRYPTO_LOCK_MALLOC); |
| mh_mode &= ~CRYPTO_MEM_CHECK_ENABLE; |
| CRYPTO_THREADID_cpy(&disabling_threadid, &cur); |
| } |
| num_disable++; |
| } |
| break; |
| case CRYPTO_MEM_CHECK_ENABLE: /* aka MemCheck_on() */ |
| if (mh_mode & CRYPTO_MEM_CHECK_ON) { |
| if (num_disable) { /* always true, or something is going wrong */ |
| num_disable--; |
| if (num_disable == 0) { |
| mh_mode |= CRYPTO_MEM_CHECK_ENABLE; |
| CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC2); |
| } |
| } |
| } |
| break; |
| |
| default: |
| break; |
| } |
| CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC); |
| return (ret); |
| } |
| |
| int CRYPTO_is_mem_check_on(void) |
| { |
| int ret = 0; |
| |
| if (mh_mode & CRYPTO_MEM_CHECK_ON) { |
| CRYPTO_THREADID cur; |
| CRYPTO_THREADID_current(&cur); |
| CRYPTO_r_lock(CRYPTO_LOCK_MALLOC); |
| |
| ret = (mh_mode & CRYPTO_MEM_CHECK_ENABLE) |
| || CRYPTO_THREADID_cmp(&disabling_threadid, &cur); |
| |
| CRYPTO_r_unlock(CRYPTO_LOCK_MALLOC); |
| } |
| return (ret); |
| } |
| |
| void CRYPTO_dbg_set_options(long bits) |
| { |
| options = bits; |
| } |
| |
| long CRYPTO_dbg_get_options(void) |
| { |
| return options; |
| } |
| |
| static int mem_cmp(const MEM *a, const MEM *b) |
| { |
| #ifdef _WIN64 |
| const char *ap = (const char *)a->addr, *bp = (const char *)b->addr; |
| if (ap == bp) |
| return 0; |
| else if (ap > bp) |
| return 1; |
| else |
| return -1; |
| #else |
| return (const char *)a->addr - (const char *)b->addr; |
| #endif |
| } |
| |
| static IMPLEMENT_LHASH_COMP_FN(mem, MEM) |
| |
| static unsigned long mem_hash(const MEM *a) |
| { |
| unsigned long ret; |
| |
| ret = (unsigned long)a->addr; |
| |
| ret = ret * 17851 + (ret >> 14) * 7 + (ret >> 4) * 251; |
| return (ret); |
| } |
| |
| static IMPLEMENT_LHASH_HASH_FN(mem, MEM) |
| |
| /* static int app_info_cmp(APP_INFO *a, APP_INFO *b) */ |
| static int app_info_cmp(const void *a_void, const void *b_void) |
| { |
| return CRYPTO_THREADID_cmp(&((const APP_INFO *)a_void)->threadid, |
| &((const APP_INFO *)b_void)->threadid); |
| } |
| |
| static IMPLEMENT_LHASH_COMP_FN(app_info, APP_INFO) |
| |
| static unsigned long app_info_hash(const APP_INFO *a) |
| { |
| unsigned long ret; |
| |
| ret = CRYPTO_THREADID_hash(&a->threadid); |
| /* This is left in as a "who am I to question legacy?" measure */ |
| ret = ret * 17851 + (ret >> 14) * 7 + (ret >> 4) * 251; |
| return (ret); |
| } |
| |
| static IMPLEMENT_LHASH_HASH_FN(app_info, APP_INFO) |
| |
| static APP_INFO *pop_info(void) |
| { |
| APP_INFO tmp; |
| APP_INFO *ret = NULL; |
| |
| if (amih != NULL) { |
| CRYPTO_THREADID_current(&tmp.threadid); |
| if ((ret = lh_APP_INFO_delete(amih, &tmp)) != NULL) { |
| APP_INFO *next = ret->next; |
| |
| if (next != NULL) { |
| next->references++; |
| (void)lh_APP_INFO_insert(amih, next); |
| } |
| #ifdef LEVITTE_DEBUG_MEM |
| if (CRYPTO_THREADID_cmp(&ret->threadid, &tmp.threadid)) { |
| OPENSSL_port_printferr( |
| "pop_info(): deleted info has other thread ID (%lu) than the current thread (%lu)!!!!\n", |
| CRYPTO_THREADID_hash(&ret->threadid), |
| CRYPTO_THREADID_hash(&tmp.threadid)); |
| OPENSSL_port_abort(); |
| } |
| #endif |
| if (--(ret->references) <= 0) { |
| ret->next = NULL; |
| if (next != NULL) |
| next->references--; |
| OPENSSL_free(ret); |
| } |
| } |
| } |
| return (ret); |
| } |
| |
| int CRYPTO_push_info_(const char *info, const char *file, int line) |
| { |
| APP_INFO *ami, *amim; |
| int ret = 0; |
| |
| if (is_MemCheck_on()) { |
| MemCheck_off(); /* obtain MALLOC2 lock */ |
| |
| if ((ami = (APP_INFO *)OPENSSL_malloc(sizeof(APP_INFO))) == NULL) { |
| ret = 0; |
| goto err; |
| } |
| if (amih == NULL) { |
| if ((amih = lh_APP_INFO_new()) == NULL) { |
| OPENSSL_free(ami); |
| ret = 0; |
| goto err; |
| } |
| } |
| |
| CRYPTO_THREADID_current(&ami->threadid); |
| ami->file = file; |
| ami->line = line; |
| ami->info = info; |
| ami->references = 1; |
| ami->next = NULL; |
| |
| if ((amim = lh_APP_INFO_insert(amih, ami)) != NULL) { |
| #ifdef LEVITTE_DEBUG_MEM |
| if (CRYPTO_THREADID_cmp(&ami->threadid, &amim->threadid)) { |
| OPENSSL_port_printferr( |
| "CRYPTO_push_info(): previous info has other thread ID (%lu) than the current thread (%lu)!!!!\n", |
| CRYPTO_THREADID_hash(&amim->threadid), |
| CRYPTO_THREADID_hash(&ami->threadid)); |
| OPENSSL_port_abort(); |
| } |
| #endif |
| ami->next = amim; |
| } |
| err: |
| MemCheck_on(); /* release MALLOC2 lock */ |
| } |
| |
| return (ret); |
| } |
| |
| int CRYPTO_pop_info(void) |
| { |
| int ret = 0; |
| |
| if (is_MemCheck_on()) { /* _must_ be true, or something went severely |
| * wrong */ |
| MemCheck_off(); /* obtain MALLOC2 lock */ |
| |
| ret = (pop_info() != NULL); |
| |
| MemCheck_on(); /* release MALLOC2 lock */ |
| } |
| return (ret); |
| } |
| |
| int CRYPTO_remove_all_info(void) |
| { |
| int ret = 0; |
| |
| if (is_MemCheck_on()) { /* _must_ be true */ |
| MemCheck_off(); /* obtain MALLOC2 lock */ |
| |
| while (pop_info() != NULL) |
| ret++; |
| |
| MemCheck_on(); /* release MALLOC2 lock */ |
| } |
| return (ret); |
| } |
| |
| static unsigned long break_order_num = 0; |
| void CRYPTO_dbg_malloc(void *addr, int num, const char *file, int line, |
| int before_p) |
| { |
| MEM *m, *mm; |
| APP_INFO tmp, *amim; |
| |
| switch (before_p & 127) { |
| case 0: |
| break; |
| case 1: |
| if (addr == NULL) |
| break; |
| |
| if (is_MemCheck_on()) { |
| MemCheck_off(); /* make sure we hold MALLOC2 lock */ |
| if ((m = (MEM *)OPENSSL_malloc(sizeof(MEM))) == NULL) { |
| OPENSSL_free(addr); |
| MemCheck_on(); /* release MALLOC2 lock if num_disabled drops |
| * to 0 */ |
| return; |
| } |
| if (mh == NULL) { |
| if ((mh = lh_MEM_new()) == NULL) { |
| OPENSSL_free(addr); |
| OPENSSL_free(m); |
| addr = NULL; |
| goto err; |
| } |
| } |
| |
| m->addr = addr; |
| m->file = file; |
| m->line = line; |
| m->num = num; |
| if (options & V_CRYPTO_MDEBUG_THREAD) |
| CRYPTO_THREADID_current(&m->threadid); |
| else |
| OPENSSL_port_memset(&m->threadid, 0, sizeof(m->threadid)); |
| |
| if (order == break_order_num) { |
| /* BREAK HERE */ |
| m->order = order; |
| } |
| m->order = order++; |
| #ifdef LEVITTE_DEBUG_MEM |
| OPENSSL_port_printferr("LEVITTE_DEBUG_MEM: [%5ld] %c 0x%p (%d)\n", |
| m->order, (before_p & 128) ? '*' : '+', m->addr, m->num); |
| #endif |
| if (options & V_CRYPTO_MDEBUG_TIME) |
| #if defined(OPENSSL_SYS_STARBOARD) |
| m->time = SbTimeGetNow(); |
| #else |
| m->time = OPENSSL_port_time(NULL); |
| #endif |
| else |
| m->time = 0; |
| |
| CRYPTO_THREADID_current(&tmp.threadid); |
| m->app_info = NULL; |
| if (amih != NULL |
| && (amim = lh_APP_INFO_retrieve(amih, &tmp)) != NULL) { |
| m->app_info = amim; |
| amim->references++; |
| } |
| |
| if ((mm = lh_MEM_insert(mh, m)) != NULL) { |
| /* Not good, but don't sweat it */ |
| if (mm->app_info != NULL) { |
| mm->app_info->references--; |
| } |
| OPENSSL_free(mm); |
| } |
| err: |
| MemCheck_on(); /* release MALLOC2 lock if num_disabled drops |
| * to 0 */ |
| } |
| break; |
| } |
| return; |
| } |
| |
| void CRYPTO_dbg_free(void *addr, int before_p) |
| { |
| MEM m, *mp; |
| |
| switch (before_p) { |
| case 0: |
| if (addr == NULL) |
| break; |
| |
| if (is_MemCheck_on() && (mh != NULL)) { |
| MemCheck_off(); /* make sure we hold MALLOC2 lock */ |
| |
| m.addr = addr; |
| mp = lh_MEM_delete(mh, &m); |
| if (mp != NULL) { |
| #ifdef LEVITTE_DEBUG_MEM |
| OPENSSL_port_printferr("LEVITTE_DEBUG_MEM: [%5ld] - 0x%p (%d)\n", |
| mp->order, mp->addr, mp->num); |
| #endif |
| if (mp->app_info != NULL) |
| app_info_free(mp->app_info); |
| OPENSSL_free(mp); |
| } |
| |
| MemCheck_on(); /* release MALLOC2 lock if num_disabled drops |
| * to 0 */ |
| } |
| break; |
| case 1: |
| break; |
| } |
| } |
| |
| void CRYPTO_dbg_realloc(void *addr1, void *addr2, int num, |
| const char *file, int line, int before_p) |
| { |
| MEM m, *mp; |
| |
| #ifdef LEVITTE_DEBUG_MEM |
| OPENSSL_port_printferr( |
| "LEVITTE_DEBUG_MEM: --> CRYPTO_dbg_malloc(addr1 = %p, addr2 = %p, num = %d, file = \"%s\", line = %d, before_p = %d)\n", |
| addr1, addr2, num, file, line, before_p); |
| #endif |
| |
| switch (before_p) { |
| case 0: |
| break; |
| case 1: |
| if (addr2 == NULL) |
| break; |
| |
| if (addr1 == NULL) { |
| CRYPTO_dbg_malloc(addr2, num, file, line, 128 | before_p); |
| break; |
| } |
| |
| if (is_MemCheck_on()) { |
| MemCheck_off(); /* make sure we hold MALLOC2 lock */ |
| |
| m.addr = addr1; |
| mp = lh_MEM_delete(mh, &m); |
| if (mp != NULL) { |
| #ifdef LEVITTE_DEBUG_MEM |
| OPENSSL_port_printferr( |
| "LEVITTE_DEBUG_MEM: [%5ld] * 0x%p (%d) -> 0x%p (%d)\n", |
| mp->order, mp->addr, mp->num, addr2, num); |
| #endif |
| mp->addr = addr2; |
| mp->num = num; |
| (void)lh_MEM_insert(mh, mp); |
| } |
| |
| MemCheck_on(); /* release MALLOC2 lock if num_disabled drops |
| * to 0 */ |
| } |
| break; |
| } |
| return; |
| } |
| |
| typedef struct mem_leak_st { |
| BIO *bio; |
| int chunks; |
| long bytes; |
| } MEM_LEAK; |
| |
| static void print_leak_doall_arg(const MEM *m, MEM_LEAK *l) |
| { |
| char buf[1024]; |
| char *bufp = buf; |
| APP_INFO *amip; |
| int ami_cnt; |
| OPENSSL_port_tm lcl_storage; |
| OPENSSL_port_tm *lcl = &lcl_storage; |
| CRYPTO_THREADID ti; |
| |
| #define BUF_REMAIN (sizeof buf - (size_t)(bufp - buf)) |
| |
| if (m->addr == (char *)l->bio) |
| return; |
| |
| if (options & V_CRYPTO_MDEBUG_TIME) { |
| localtime_r(&m->time, lcl); |
| |
| BIO_snprintf(bufp, BUF_REMAIN, "[%02d:%02d:%02d] ", |
| lcl->tm_hour, lcl->tm_min, lcl->tm_sec); |
| bufp += OPENSSL_port_strlen(bufp); |
| } |
| |
| BIO_snprintf(bufp, BUF_REMAIN, "%5lu file=%s, line=%d, ", |
| m->order, m->file, m->line); |
| bufp += OPENSSL_port_strlen(bufp); |
| |
| if (options & V_CRYPTO_MDEBUG_THREAD) { |
| BIO_snprintf(bufp, BUF_REMAIN, "thread=%lu, ", |
| CRYPTO_THREADID_hash(&m->threadid)); |
| bufp += OPENSSL_port_strlen(bufp); |
| } |
| |
| BIO_snprintf(bufp, BUF_REMAIN, "number=%d, address=%08lX\n", |
| m->num, (unsigned long)m->addr); |
| bufp += OPENSSL_port_strlen(bufp); |
| |
| BIO_puts(l->bio, buf); |
| |
| l->chunks++; |
| l->bytes += m->num; |
| |
| amip = m->app_info; |
| ami_cnt = 0; |
| if (!amip) |
| return; |
| CRYPTO_THREADID_cpy(&ti, &amip->threadid); |
| |
| do { |
| int buf_len; |
| int info_len; |
| |
| ami_cnt++; |
| OPENSSL_port_memset(buf, '>', ami_cnt); |
| BIO_snprintf(buf + ami_cnt, sizeof buf - ami_cnt, |
| " thread=%lu, file=%s, line=%d, info=\"", |
| CRYPTO_THREADID_hash(&amip->threadid), amip->file, |
| amip->line); |
| buf_len = OPENSSL_port_strlen(buf); |
| info_len = OPENSSL_port_strlen(amip->info); |
| if (128 - buf_len - 3 < info_len) { |
| OPENSSL_port_memcpy(buf + buf_len, amip->info, 128 - buf_len - 3); |
| buf_len = 128 - 3; |
| } else { |
| BUF_strlcpy(buf + buf_len, amip->info, sizeof buf - buf_len); |
| buf_len = OPENSSL_port_strlen(buf); |
| } |
| BIO_snprintf(buf + buf_len, sizeof buf - buf_len, "\"\n"); |
| |
| BIO_puts(l->bio, buf); |
| |
| amip = amip->next; |
| } |
| while (amip && !CRYPTO_THREADID_cmp(&amip->threadid, &ti)); |
| |
| #ifdef LEVITTE_DEBUG_MEM |
| if (amip) { |
| OPENSSL_port_printferr("Thread switch detected in backtrace!!!!\n"); |
| OPENSSL_port_abort(); |
| } |
| #endif |
| } |
| |
| static IMPLEMENT_LHASH_DOALL_ARG_FN(print_leak, const MEM, MEM_LEAK) |
| |
| void CRYPTO_mem_leaks(BIO *b) |
| { |
| MEM_LEAK ml; |
| |
| if (mh == NULL && amih == NULL) |
| return; |
| |
| MemCheck_off(); /* obtain MALLOC2 lock */ |
| |
| ml.bio = b; |
| ml.bytes = 0; |
| ml.chunks = 0; |
| if (mh != NULL) |
| lh_MEM_doall_arg(mh, LHASH_DOALL_ARG_FN(print_leak), MEM_LEAK, &ml); |
| if (ml.chunks != 0) { |
| BIO_printf(b, "%ld bytes leaked in %d chunks\n", ml.bytes, ml.chunks); |
| #ifdef CRYPTO_MDEBUG_ABORT |
| OPENSSL_port_abort(); |
| #endif |
| } else { |
| /* |
| * Make sure that, if we found no leaks, memory-leak debugging itself |
| * does not introduce memory leaks (which might irritate external |
| * debugging tools). (When someone enables leak checking, but does not |
| * call this function, we declare it to be their fault.) XXX This |
| * should be in CRYPTO_mem_leaks_cb, and CRYPTO_mem_leaks should be |
| * implemented by using CRYPTO_mem_leaks_cb. (Also there should be a |
| * variant of lh_doall_arg that takes a function pointer instead of a |
| * void *; this would obviate the ugly and illegal void_fn_to_char |
| * kludge in CRYPTO_mem_leaks_cb. Otherwise the code police will come |
| * and get us.) |
| */ |
| int old_mh_mode; |
| |
| CRYPTO_w_lock(CRYPTO_LOCK_MALLOC); |
| |
| /* |
| * avoid deadlock when lh_free() uses CRYPTO_dbg_free(), which uses |
| * CRYPTO_is_mem_check_on |
| */ |
| old_mh_mode = mh_mode; |
| mh_mode = CRYPTO_MEM_CHECK_OFF; |
| |
| if (mh != NULL) { |
| lh_MEM_free(mh); |
| mh = NULL; |
| } |
| if (amih != NULL) { |
| if (lh_APP_INFO_num_items(amih) == 0) { |
| lh_APP_INFO_free(amih); |
| amih = NULL; |
| } |
| } |
| |
| mh_mode = old_mh_mode; |
| CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC); |
| } |
| MemCheck_on(); /* release MALLOC2 lock */ |
| } |
| |
| #ifndef OPENSSL_NO_FP_API |
| void CRYPTO_mem_leaks_fp(FILE *fp) |
| { |
| BIO *b; |
| |
| if (mh == NULL) |
| return; |
| /* |
| * Need to turn off memory checking when allocated BIOs ... especially as |
| * we're creating them at a time when we're trying to check we've not |
| * left anything un-OPENSSL_port_free()'d!! |
| */ |
| MemCheck_off(); |
| b = BIO_new(BIO_s_file()); |
| MemCheck_on(); |
| if (!b) |
| return; |
| BIO_set_fp(b, fp, BIO_NOCLOSE); |
| CRYPTO_mem_leaks(b); |
| BIO_free(b); |
| } |
| #endif |
| |
| /* |
| * FIXME: We really don't allow much to the callback. For example, it has no |
| * chance of reaching the info stack for the item it processes. Should it |
| * really be this way? -- Richard Levitte |
| */ |
| /* |
| * NB: The prototypes have been typedef'd to CRYPTO_MEM_LEAK_CB inside |
| * crypto.h If this code is restructured, remove the callback type if it is |
| * no longer needed. -- Geoff Thorpe |
| */ |
| |
| /* |
| * Can't pass CRYPTO_MEM_LEAK_CB directly to lh_MEM_doall_arg because it is a |
| * function pointer and conversion to void * is prohibited. Instead pass its |
| * address |
| */ |
| |
| typedef CRYPTO_MEM_LEAK_CB *PCRYPTO_MEM_LEAK_CB; |
| |
| static void cb_leak_doall_arg(const MEM *m, PCRYPTO_MEM_LEAK_CB *cb) |
| { |
| (*cb) (m->order, m->file, m->line, m->num, m->addr); |
| } |
| |
| static IMPLEMENT_LHASH_DOALL_ARG_FN(cb_leak, const MEM, PCRYPTO_MEM_LEAK_CB) |
| |
| void CRYPTO_mem_leaks_cb(CRYPTO_MEM_LEAK_CB *cb) |
| { |
| if (mh == NULL) |
| return; |
| CRYPTO_w_lock(CRYPTO_LOCK_MALLOC2); |
| lh_MEM_doall_arg(mh, LHASH_DOALL_ARG_FN(cb_leak), PCRYPTO_MEM_LEAK_CB, |
| &cb); |
| CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC2); |
| } |
