diff options
Diffstat (limited to 'deps/openssl/openssl/crypto/mem_dbg.c')
| -rw-r--r-- | deps/openssl/openssl/crypto/mem_dbg.c | 767 |
1 files changed, 280 insertions, 487 deletions
diff --git a/deps/openssl/openssl/crypto/mem_dbg.c b/deps/openssl/openssl/crypto/mem_dbg.c index 9e1be50895..c884078e77 100644 --- a/deps/openssl/openssl/crypto/mem_dbg.c +++ b/deps/openssl/openssl/crypto/mem_dbg.c @@ -1,124 +1,26 @@ -/* 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) 1998-2018 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). +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html */ #include <stdio.h> #include <stdlib.h> #include <time.h> -#include "cryptlib.h" +#include "internal/cryptlib.h" +#include "internal/thread_once.h" #include <openssl/crypto.h> #include <openssl/buffer.h> -#include <openssl/bio.h> +#include "internal/bio.h" #include <openssl/lhash.h> -static int mh_mode = CRYPTO_MEM_CHECK_OFF; +#ifndef OPENSSL_NO_CRYPTO_MDEBUG_BACKTRACE +# include <execinfo.h> +#endif + /* * The state changes to CRYPTO_MEM_CHECK_ON | CRYPTO_MEM_CHECK_ENABLE when * the application asks for it (usually after library initialisation for @@ -130,178 +32,183 @@ static int mh_mode = CRYPTO_MEM_CHECK_OFF; * checking temporarily. State CRYPTO_MEM_CHECK_ENABLE without ..._ON makes * no sense whatsoever. */ +#ifndef OPENSSL_NO_CRYPTO_MDEBUG +static int mh_mode = CRYPTO_MEM_CHECK_OFF; +#endif +#ifndef OPENSSL_NO_CRYPTO_MDEBUG 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. + * OPENSSL_mem_debug_push("...") to push an entry, + * OPENSSL_mem_debug_pop() to pop an entry, */ -{ - CRYPTO_THREADID threadid; +struct app_mem_info_st { + CRYPTO_THREAD_ID 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 */ +static CRYPTO_ONCE memdbg_init = CRYPTO_ONCE_STATIC_INIT; +static CRYPTO_RWLOCK *malloc_lock = NULL; +static CRYPTO_RWLOCK *long_malloc_lock = NULL; +static CRYPTO_THREAD_LOCAL appinfokey; -typedef struct mem_st /* memory-block description */ -{ +struct mem_st { void *addr; int num; const char *file; int line; - CRYPTO_THREADID threadid; + CRYPTO_THREAD_ID threadid; unsigned long order; time_t time; 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 | +#ifndef OPENSSL_NO_CRYPTO_MDEBUG_BACKTRACE + void *array[30]; + size_t array_siz; #endif - 0; +}; -static unsigned int num_disable = 0; /* num_disable > 0 iff mh_mode == - * CRYPTO_MEM_CHECK_ON (w/o ..._ENABLE) */ +static LHASH_OF(MEM) *mh = NULL; /* hash-table of memory requests (address as + * key); access requires MALLOC2 lock */ + +/* num_disable > 0 iff mh_mode == CRYPTO_MEM_CHECK_ON (w/o ..._ENABLE) */ +static unsigned int num_disable = 0; /* - * Valid iff num_disable > 0. CRYPTO_LOCK_MALLOC2 is locked exactly in this + * Valid iff num_disable > 0. long_malloc_lock is locked exactly in this * case (by the thread named in disabling_thread). */ -static CRYPTO_THREADID disabling_threadid; +static CRYPTO_THREAD_ID disabling_threadid; + +DEFINE_RUN_ONCE_STATIC(do_memdbg_init) +{ + malloc_lock = CRYPTO_THREAD_lock_new(); + long_malloc_lock = CRYPTO_THREAD_lock_new(); + if (malloc_lock == NULL || long_malloc_lock == NULL + || !CRYPTO_THREAD_init_local(&appinfokey, NULL)) { + CRYPTO_THREAD_lock_free(malloc_lock); + malloc_lock = NULL; + CRYPTO_THREAD_lock_free(long_malloc_lock); + long_malloc_lock = NULL; + return 0; + } + return 1; +} static void app_info_free(APP_INFO *inf) { + if (!inf) + return; if (--(inf->references) <= 0) { - if (inf->next != NULL) { - app_info_free(inf->next); - } + app_info_free(inf->next); OPENSSL_free(inf); } } +#endif int CRYPTO_mem_ctrl(int mode) { +#ifdef OPENSSL_NO_CRYPTO_MDEBUG + return mode - mode; +#else int ret = mh_mode; - CRYPTO_w_lock(CRYPTO_LOCK_MALLOC); + if (!RUN_ONCE(&memdbg_init, do_memdbg_init)) + return -1; + + CRYPTO_THREAD_write_lock(malloc_lock); switch (mode) { - /* - * for applications (not to be called while multiple threads use the - * library): - */ - case CRYPTO_MEM_CHECK_ON: /* aka MemCheck_start() */ + default: + break; + + case CRYPTO_MEM_CHECK_ON: mh_mode = CRYPTO_MEM_CHECK_ON | CRYPTO_MEM_CHECK_ENABLE; num_disable = 0; break; - case CRYPTO_MEM_CHECK_OFF: /* aka MemCheck_stop() */ + + case CRYPTO_MEM_CHECK_OFF: mh_mode = 0; - num_disable = 0; /* should be true *before* MemCheck_stop is - * used, or there'll be a lot of confusion */ + num_disable = 0; break; - /* switch off temporarily (for library-internal use): */ - case CRYPTO_MEM_CHECK_DISABLE: /* aka MemCheck_off() */ + /* switch off temporarily (for library-internal use): */ + case CRYPTO_MEM_CHECK_DISABLE: if (mh_mode & CRYPTO_MEM_CHECK_ON) { - CRYPTO_THREADID cur; - CRYPTO_THREADID_current(&cur); - /* see if we don't have the MALLOC2 lock already */ + CRYPTO_THREAD_ID cur = CRYPTO_THREAD_get_current_id(); + /* see if we don't have long_malloc_lock already */ if (!num_disable - || CRYPTO_THREADID_cmp(&disabling_threadid, &cur)) { + || !CRYPTO_THREAD_compare_id(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 + * Long-time lock long_malloc_lock must not be claimed + * while we're holding malloc_lock, or we'll deadlock + * if somebody else holds long_malloc_lock (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); + CRYPTO_THREAD_unlock(malloc_lock); /* - * Note that after we have waited for CRYPTO_LOCK_MALLOC2 and - * CRYPTO_LOCK_MALLOC, we'll still be in the right "case" and + * Note that after we have waited for long_malloc_lock and + * malloc_lock, 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); + CRYPTO_THREAD_write_lock(long_malloc_lock); + CRYPTO_THREAD_write_lock(malloc_lock); mh_mode &= ~CRYPTO_MEM_CHECK_ENABLE; - CRYPTO_THREADID_cpy(&disabling_threadid, &cur); + disabling_threadid = cur; } num_disable++; } break; - case CRYPTO_MEM_CHECK_ENABLE: /* aka MemCheck_on() */ + + case CRYPTO_MEM_CHECK_ENABLE: 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); + CRYPTO_THREAD_unlock(long_malloc_lock); } } } break; - - default: - break; } - CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC); + CRYPTO_THREAD_unlock(malloc_lock); return (ret); +#endif } -int CRYPTO_is_mem_check_on(void) +#ifndef OPENSSL_NO_CRYPTO_MDEBUG + +static int mem_check_on(void) { int ret = 0; + CRYPTO_THREAD_ID cur; if (mh_mode & CRYPTO_MEM_CHECK_ON) { - CRYPTO_THREADID cur; - CRYPTO_THREADID_current(&cur); - CRYPTO_r_lock(CRYPTO_LOCK_MALLOC); + if (!RUN_ONCE(&memdbg_init, do_memdbg_init)) + return 0; + + cur = CRYPTO_THREAD_get_current_id(); + CRYPTO_THREAD_read_lock(malloc_lock); ret = (mh_mode & CRYPTO_MEM_CHECK_ENABLE) - || CRYPTO_THREADID_cmp(&disabling_threadid, &cur); + || !CRYPTO_THREAD_compare_id(disabling_threadid, cur); - CRYPTO_r_unlock(CRYPTO_LOCK_MALLOC); + CRYPTO_THREAD_unlock(malloc_lock); } 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 @@ -317,157 +224,96 @@ static int mem_cmp(const MEM *a, const MEM *b) #endif } -static IMPLEMENT_LHASH_COMP_FN(mem, MEM) - static unsigned long mem_hash(const MEM *a) { - unsigned long ret; + size_t ret; - ret = (unsigned long)a->addr; + ret = (size_t)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) +/* returns 1 if there was an info to pop, 0 if the stack was empty. */ +static int pop_info(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); -} + APP_INFO *current = NULL; -static IMPLEMENT_LHASH_HASH_FN(app_info, APP_INFO) - -static APP_INFO *pop_info(void) -{ - APP_INFO tmp; - APP_INFO *ret = NULL; + if (!RUN_ONCE(&memdbg_init, do_memdbg_init)) + return 0; - if (amih != NULL) { - CRYPTO_THREADID_current(&tmp.threadid); - if ((ret = lh_APP_INFO_delete(amih, &tmp)) != NULL) { - APP_INFO *next = ret->next; + current = (APP_INFO *)CRYPTO_THREAD_get_local(&appinfokey); + if (current != NULL) { + APP_INFO *next = current->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)) { - fprintf(stderr, - "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)); - abort(); - } -#endif - if (--(ret->references) <= 0) { - ret->next = NULL; - if (next != NULL) - next->references--; - OPENSSL_free(ret); - } + if (next != NULL) { + next->references++; + CRYPTO_THREAD_set_local(&appinfokey, next); + } else { + CRYPTO_THREAD_set_local(&appinfokey, NULL); } + if (--(current->references) <= 0) { + current->next = NULL; + if (next != NULL) + next->references--; + OPENSSL_free(current); + } + return 1; } - return (ret); + return 0; } -int CRYPTO_push_info_(const char *info, const char *file, int line) +int CRYPTO_mem_debug_push(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 (mem_check_on()) { + CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); - if ((ami = (APP_INFO *)OPENSSL_malloc(sizeof(APP_INFO))) == NULL) { - ret = 0; + if (!RUN_ONCE(&memdbg_init, do_memdbg_init) + || (ami = OPENSSL_malloc(sizeof(*ami))) == NULL) 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->threadid = CRYPTO_THREAD_get_current_id(); 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)) { - fprintf(stderr, - "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)); - abort(); - } -#endif + amim = (APP_INFO *)CRYPTO_THREAD_get_local(&appinfokey); + CRYPTO_THREAD_set_local(&appinfokey, ami); + + if (amim != NULL) ami->next = amim; - } + ret = 1; err: - MemCheck_on(); /* release MALLOC2 lock */ + CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); } return (ret); } -int CRYPTO_pop_info(void) +int CRYPTO_mem_debug_pop(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 */ + if (mem_check_on()) { + CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); + ret = pop_info(); + CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); } 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) + +void CRYPTO_mem_debug_malloc(void *addr, size_t num, int before_p, + const char *file, int line) { MEM *m, *mm; - APP_INFO tmp, *amim; + APP_INFO *amim; switch (before_p & 127) { case 0: @@ -476,16 +322,17 @@ void CRYPTO_dbg_malloc(void *addr, int num, const char *file, int line, if (addr == NULL) break; - if (is_MemCheck_on()) { - MemCheck_off(); /* make sure we hold MALLOC2 lock */ - if ((m = (MEM *)OPENSSL_malloc(sizeof(MEM))) == NULL) { + if (mem_check_on()) { + CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); + + if (!RUN_ONCE(&memdbg_init, do_memdbg_init) + || (m = OPENSSL_malloc(sizeof(*m))) == NULL) { OPENSSL_free(addr); - MemCheck_on(); /* release MALLOC2 lock if num_disabled drops - * to 0 */ + CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); return; } if (mh == NULL) { - if ((mh = lh_MEM_new()) == NULL) { + if ((mh = lh_MEM_new(mem_hash, mem_cmp)) == NULL) { OPENSSL_free(addr); OPENSSL_free(m); addr = NULL; @@ -497,32 +344,22 @@ void CRYPTO_dbg_malloc(void *addr, int num, const char *file, int line, m->file = file; m->line = line; m->num = num; - if (options & V_CRYPTO_MDEBUG_THREAD) - CRYPTO_THREADID_current(&m->threadid); - else - memset(&m->threadid, 0, sizeof(m->threadid)); + m->threadid = CRYPTO_THREAD_get_current_id(); if (order == break_order_num) { /* BREAK HERE */ m->order = order; } m->order = order++; -#ifdef LEVITTE_DEBUG_MEM - fprintf(stderr, "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) - m->time = time(NULL); - 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; +# ifndef OPENSSL_NO_CRYPTO_MDEBUG_BACKTRACE + m->array_siz = backtrace(m->array, OSSL_NELEM(m->array)); +# endif + m->time = time(NULL); + + amim = (APP_INFO *)CRYPTO_THREAD_get_local(&appinfokey); + m->app_info = amim; + if (amim != NULL) amim->references++; - } if ((mm = lh_MEM_insert(mh, m)) != NULL) { /* Not good, but don't sweat it */ @@ -532,15 +369,15 @@ void CRYPTO_dbg_malloc(void *addr, int num, const char *file, int line, OPENSSL_free(mm); } err: - MemCheck_on(); /* release MALLOC2 lock if num_disabled drops - * to 0 */ + CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); } break; } return; } -void CRYPTO_dbg_free(void *addr, int before_p) +void CRYPTO_mem_debug_free(void *addr, int before_p, + const char *file, int line) { MEM m, *mp; @@ -549,23 +386,17 @@ void CRYPTO_dbg_free(void *addr, int before_p) if (addr == NULL) break; - if (is_MemCheck_on() && (mh != NULL)) { - MemCheck_off(); /* make sure we hold MALLOC2 lock */ + if (mem_check_on() && (mh != NULL)) { + CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); m.addr = addr; mp = lh_MEM_delete(mh, &m); if (mp != NULL) { -#ifdef LEVITTE_DEBUG_MEM - fprintf(stderr, "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); + app_info_free(mp->app_info); OPENSSL_free(mp); } - MemCheck_on(); /* release MALLOC2 lock if num_disabled drops - * to 0 */ + CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); } break; case 1: @@ -573,17 +404,11 @@ void CRYPTO_dbg_free(void *addr, int before_p) } } -void CRYPTO_dbg_realloc(void *addr1, void *addr2, int num, - const char *file, int line, int before_p) +void CRYPTO_mem_debug_realloc(void *addr1, void *addr2, size_t num, + int before_p, const char *file, int line) { MEM m, *mp; -#ifdef LEVITTE_DEBUG_MEM - fprintf(stderr, - "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; @@ -592,28 +417,25 @@ void CRYPTO_dbg_realloc(void *addr1, void *addr2, int num, break; if (addr1 == NULL) { - CRYPTO_dbg_malloc(addr2, num, file, line, 128 | before_p); + CRYPTO_mem_debug_malloc(addr2, num, 128 | before_p, file, line); break; } - if (is_MemCheck_on()) { - MemCheck_off(); /* make sure we hold MALLOC2 lock */ + if (mem_check_on()) { + CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); m.addr = addr1; mp = lh_MEM_delete(mh, &m); if (mp != NULL) { -#ifdef LEVITTE_DEBUG_MEM - fprintf(stderr, - "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; +#ifndef OPENSSL_NO_CRYPTO_MDEBUG_BACKTRACE + mp->array_siz = backtrace(mp->array, OSSL_NELEM(mp->array)); +#endif (void)lh_MEM_insert(mh, mp); } - MemCheck_on(); /* release MALLOC2 lock if num_disabled drops - * to 0 */ + CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); } break; } @@ -626,46 +448,42 @@ typedef struct mem_leak_st { long bytes; } MEM_LEAK; -static void print_leak_doall_arg(const MEM *m, MEM_LEAK *l) +static void print_leak(const MEM *m, MEM_LEAK *l) { char buf[1024]; char *bufp = buf; APP_INFO *amip; int ami_cnt; struct tm *lcl = NULL; - struct tm result = {0}; - CRYPTO_THREADID ti; + /* + * Convert between CRYPTO_THREAD_ID (which could be anything at all) and + * a long. This may not be meaningful depending on what CRYPTO_THREAD_ID is + * but hopefully should give something sensible on most platforms + */ + union { + CRYPTO_THREAD_ID tid; + unsigned long ltid; + } tid; + CRYPTO_THREAD_ID ti; #define BUF_REMAIN (sizeof(buf) - (size_t)(bufp - buf)) - if (m->addr == (char *)l->bio) - return; - - if (options & V_CRYPTO_MDEBUG_TIME) { -# if defined(OPENSSL_THREADS) && !defined(OPENSSL_SYS_WIN32) && \ - !defined(OPENSSL_SYS_OS2) && !defined(OPENSSL_SYS_SUNOS) && \ - (!defined(OPENSSL_SYS_VMS) || defined(localtime_r)) - lcl = localtime_r(&m->time, &result); -# else - lcl = localtime(&m->time); -# endif - BIO_snprintf(bufp, BUF_REMAIN, "[%02d:%02d:%02d] ", - lcl->tm_hour, lcl->tm_min, lcl->tm_sec); - bufp += strlen(bufp); - } + lcl = localtime(&m->time); + BIO_snprintf(bufp, BUF_REMAIN, "[%02d:%02d:%02d] ", + lcl->tm_hour, lcl->tm_min, lcl->tm_sec); + bufp += strlen(bufp); BIO_snprintf(bufp, BUF_REMAIN, "%5lu file=%s, line=%d, ", m->order, m->file, m->line); bufp += strlen(bufp); - if (options & V_CRYPTO_MDEBUG_THREAD) { - BIO_snprintf(bufp, BUF_REMAIN, "thread=%lu, ", - CRYPTO_THREADID_hash(&m->threadid)); - bufp += strlen(bufp); - } + tid.ltid = 0; + tid.tid = m->threadid; + BIO_snprintf(bufp, BUF_REMAIN, "thread=%lu, ", tid.ltid); + bufp += strlen(bufp); - BIO_snprintf(bufp, BUF_REMAIN, "number=%d, address=%08lX\n", - m->num, (unsigned long)m->addr); + BIO_snprintf(bufp, BUF_REMAIN, "number=%d, address=%p\n", + m->num, m->addr); bufp += strlen(bufp); BIO_puts(l->bio, buf); @@ -675,162 +493,137 @@ static void print_leak_doall_arg(const MEM *m, MEM_LEAK *l) 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++; - 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 = strlen(buf); - info_len = strlen(amip->info); - if (128 - buf_len - 3 < info_len) { - 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); + + if (amip) { + ti = amip->threadid; + + do { + int buf_len; + int info_len; + + ami_cnt++; + memset(buf, '>', ami_cnt); + tid.ltid = 0; + tid.tid = amip->threadid; + BIO_snprintf(buf + ami_cnt, sizeof(buf) - ami_cnt, + " thread=%lu, file=%s, line=%d, info=\"", + tid.ltid, amip->file, + amip->line); buf_len = strlen(buf); - } - BIO_snprintf(buf + buf_len, sizeof(buf) - buf_len, "\"\n"); + info_len = strlen(amip->info); + if (128 - buf_len - 3 < info_len) { + memcpy(buf + buf_len, amip->info, 128 - buf_len - 3); + buf_len = 128 - 3; + } else { + OPENSSL_strlcpy(buf + buf_len, amip->info, sizeof(buf) - buf_len); + buf_len = strlen(buf); + } + BIO_snprintf(buf + buf_len, sizeof(buf) - buf_len, "\"\n"); - BIO_puts(l->bio, buf); + BIO_puts(l->bio, buf); - amip = amip->next; + amip = amip->next; + } + while (amip && CRYPTO_THREAD_compare_id(amip->threadid, ti)); } - while (amip && !CRYPTO_THREADID_cmp(&amip->threadid, &ti)); -#ifdef LEVITTE_DEBUG_MEM - if (amip) { - fprintf(stderr, "Thread switch detected in backtrace!!!!\n"); - abort(); +#ifndef OPENSSL_NO_CRYPTO_MDEBUG_BACKTRACE + { + size_t i; + char **strings = backtrace_symbols(m->array, m->array_siz); + + for (i = 0; i < m->array_siz; i++) + fprintf(stderr, "##> %s\n", strings[i]); + free(strings); } #endif } -static IMPLEMENT_LHASH_DOALL_ARG_FN(print_leak, const MEM, MEM_LEAK) +IMPLEMENT_LHASH_DOALL_ARG_CONST(MEM, MEM_LEAK); -void CRYPTO_mem_leaks(BIO *b) +int CRYPTO_mem_leaks(BIO *b) { MEM_LEAK ml; - if (mh == NULL && amih == NULL) - return; + /* + * OPENSSL_cleanup() will free the ex_data locks so we can't have any + * ex_data hanging around + */ + bio_free_ex_data(b); - MemCheck_off(); /* obtain MALLOC2 lock */ + /* Ensure all resources are released */ + OPENSSL_cleanup(); + + if (!RUN_ONCE(&memdbg_init, do_memdbg_init)) + return -1; + + CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); 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); + lh_MEM_doall_MEM_LEAK(mh, print_leak, &ml); + if (ml.chunks != 0) { BIO_printf(b, "%ld bytes leaked in %d chunks\n", ml.bytes, ml.chunks); -#ifdef CRYPTO_MDEBUG_ABORT - 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.) + * call this function, we declare it to be their fault.) */ int old_mh_mode; - CRYPTO_w_lock(CRYPTO_LOCK_MALLOC); + CRYPTO_THREAD_write_lock(malloc_lock); /* - * avoid deadlock when lh_free() uses CRYPTO_dbg_free(), which uses - * CRYPTO_is_mem_check_on + * avoid deadlock when lh_free() uses CRYPTO_mem_debug_free(), which uses + * 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; - } - } + lh_MEM_free(mh); + mh = NULL; mh_mode = old_mh_mode; - CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC); + CRYPTO_THREAD_unlock(malloc_lock); } - MemCheck_on(); /* release MALLOC2 lock */ + CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF); + + /* Clean up locks etc */ + CRYPTO_THREAD_cleanup_local(&appinfokey); + CRYPTO_THREAD_lock_free(malloc_lock); + CRYPTO_THREAD_lock_free(long_malloc_lock); + malloc_lock = NULL; + long_malloc_lock = NULL; + + return ml.chunks == 0 ? 1 : 0; } -#ifndef OPENSSL_NO_FP_API -void CRYPTO_mem_leaks_fp(FILE *fp) +# ifndef OPENSSL_NO_STDIO +int CRYPTO_mem_leaks_fp(FILE *fp) { BIO *b; + int ret; - 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-free()'d!! */ - MemCheck_off(); + CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); b = BIO_new(BIO_s_file()); - MemCheck_on(); - if (!b) - return; + CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); + if (b == NULL) + return -1; BIO_set_fp(b, fp, BIO_NOCLOSE); - CRYPTO_mem_leaks(b); + ret = CRYPTO_mem_leaks(b); BIO_free(b); + return ret; } -#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) +# endif -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); -} +#endif |