831 lines
26 KiB
C
831 lines
26 KiB
C
/* crypto/mem_dbg.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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/* ====================================================================
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* Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include "cryptlib.h"
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#include <openssl/crypto.h>
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#include <openssl/buffer.h>
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#include <openssl/bio.h>
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#include <openssl/lhash.h>
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static int mh_mode = CRYPTO_MEM_CHECK_OFF;
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/*
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* The state changes to CRYPTO_MEM_CHECK_ON | CRYPTO_MEM_CHECK_ENABLE when
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* the application asks for it (usually after library initialisation for
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* which no book-keeping is desired). State CRYPTO_MEM_CHECK_ON exists only
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* temporarily when the library thinks that certain allocations should not be
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* checked (e.g. the data structures used for memory checking). It is not
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* suitable as an initial state: the library will unexpectedly enable memory
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* checking when it executes one of those sections that want to disable
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* checking temporarily. State CRYPTO_MEM_CHECK_ENABLE without ..._ON makes
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* no sense whatsoever.
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*/
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static unsigned long order = 0; /* number of memory requests */
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DECLARE_LHASH_OF(MEM);
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static LHASH_OF(MEM) *mh = NULL; /* hash-table of memory requests (address as
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* key); access requires MALLOC2 lock */
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typedef struct app_mem_info_st
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/*-
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* For application-defined information (static C-string `info')
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* to be displayed in memory leak list.
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* Each thread has its own stack. For applications, there is
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* CRYPTO_push_info("...") to push an entry,
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* CRYPTO_pop_info() to pop an entry,
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* CRYPTO_remove_all_info() to pop all entries.
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*/
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{
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CRYPTO_THREADID threadid;
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const char *file;
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int line;
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const char *info;
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struct app_mem_info_st *next; /* tail of thread's stack */
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int references;
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} APP_INFO;
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static void app_info_free(APP_INFO *);
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DECLARE_LHASH_OF(APP_INFO);
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static LHASH_OF(APP_INFO) *amih = NULL; /* hash-table with those
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* app_mem_info_st's that are at the
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* top of their thread's stack (with
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* `thread' as key); access requires
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* MALLOC2 lock */
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typedef struct mem_st
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/* memory-block description */
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{
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void *addr;
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int num;
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const char *file;
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int line;
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CRYPTO_THREADID threadid;
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unsigned long order;
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time_t time;
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APP_INFO *app_info;
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} MEM;
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static long options = /* extra information to be recorded */
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#if defined(CRYPTO_MDEBUG_TIME) || defined(CRYPTO_MDEBUG_ALL)
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V_CRYPTO_MDEBUG_TIME |
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#endif
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#if defined(CRYPTO_MDEBUG_THREAD) || defined(CRYPTO_MDEBUG_ALL)
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V_CRYPTO_MDEBUG_THREAD |
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#endif
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0;
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static unsigned int num_disable = 0; /* num_disable > 0 iff mh_mode ==
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* CRYPTO_MEM_CHECK_ON (w/o ..._ENABLE) */
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/*
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* Valid iff num_disable > 0. CRYPTO_LOCK_MALLOC2 is locked exactly in this
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* case (by the thread named in disabling_thread).
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*/
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static CRYPTO_THREADID disabling_threadid;
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static void app_info_free(APP_INFO *inf)
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{
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if (--(inf->references) <= 0) {
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if (inf->next != NULL) {
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app_info_free(inf->next);
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}
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OPENSSL_free(inf);
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}
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}
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int CRYPTO_mem_ctrl(int mode)
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{
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int ret = mh_mode;
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CRYPTO_w_lock(CRYPTO_LOCK_MALLOC);
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switch (mode) {
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/*
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* for applications (not to be called while multiple threads use the
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* library):
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*/
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case CRYPTO_MEM_CHECK_ON: /* aka MemCheck_start() */
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mh_mode = CRYPTO_MEM_CHECK_ON | CRYPTO_MEM_CHECK_ENABLE;
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num_disable = 0;
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break;
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case CRYPTO_MEM_CHECK_OFF: /* aka MemCheck_stop() */
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mh_mode = 0;
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num_disable = 0; /* should be true *before* MemCheck_stop is
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* used, or there'll be a lot of confusion */
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break;
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/* switch off temporarily (for library-internal use): */
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case CRYPTO_MEM_CHECK_DISABLE: /* aka MemCheck_off() */
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if (mh_mode & CRYPTO_MEM_CHECK_ON) {
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CRYPTO_THREADID cur;
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CRYPTO_THREADID_current(&cur);
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/* see if we don't have the MALLOC2 lock already */
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if (!num_disable
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|| CRYPTO_THREADID_cmp(&disabling_threadid, &cur)) {
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/*
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* Long-time lock CRYPTO_LOCK_MALLOC2 must not be claimed
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* while we're holding CRYPTO_LOCK_MALLOC, or we'll deadlock
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* if somebody else holds CRYPTO_LOCK_MALLOC2 (and cannot
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* release it because we block entry to this function). Give
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* them a chance, first, and then claim the locks in
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* appropriate order (long-time lock first).
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*/
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CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC);
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/*
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* Note that after we have waited for CRYPTO_LOCK_MALLOC2 and
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* CRYPTO_LOCK_MALLOC, we'll still be in the right "case" and
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* "if" branch because MemCheck_start and MemCheck_stop may
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* never be used while there are multiple OpenSSL threads.
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*/
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CRYPTO_w_lock(CRYPTO_LOCK_MALLOC2);
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CRYPTO_w_lock(CRYPTO_LOCK_MALLOC);
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mh_mode &= ~CRYPTO_MEM_CHECK_ENABLE;
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CRYPTO_THREADID_cpy(&disabling_threadid, &cur);
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}
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num_disable++;
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}
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break;
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case CRYPTO_MEM_CHECK_ENABLE: /* aka MemCheck_on() */
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if (mh_mode & CRYPTO_MEM_CHECK_ON) {
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if (num_disable) { /* always true, or something is going wrong */
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num_disable--;
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if (num_disable == 0) {
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mh_mode |= CRYPTO_MEM_CHECK_ENABLE;
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CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC2);
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}
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}
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}
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break;
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default:
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break;
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}
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CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC);
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return (ret);
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}
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int CRYPTO_is_mem_check_on(void)
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{
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int ret = 0;
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if (mh_mode & CRYPTO_MEM_CHECK_ON) {
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CRYPTO_THREADID cur;
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CRYPTO_THREADID_current(&cur);
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CRYPTO_r_lock(CRYPTO_LOCK_MALLOC);
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ret = (mh_mode & CRYPTO_MEM_CHECK_ENABLE)
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|| CRYPTO_THREADID_cmp(&disabling_threadid, &cur);
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CRYPTO_r_unlock(CRYPTO_LOCK_MALLOC);
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}
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return (ret);
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}
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void CRYPTO_dbg_set_options(long bits)
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{
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options = bits;
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}
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long CRYPTO_dbg_get_options(void)
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{
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return options;
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}
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static int mem_cmp(const MEM *a, const MEM *b)
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{
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#ifdef _WIN64
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const char *ap = (const char *)a->addr, *bp = (const char *)b->addr;
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if (ap == bp)
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return 0;
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else if (ap > bp)
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return 1;
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else
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return -1;
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#else
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return (const char *)a->addr - (const char *)b->addr;
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#endif
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}
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static IMPLEMENT_LHASH_COMP_FN(mem, MEM)
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static unsigned long mem_hash(const MEM *a)
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{
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unsigned long ret;
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ret = (unsigned long)a->addr;
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ret = ret * 17851 + (ret >> 14) * 7 + (ret >> 4) * 251;
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return (ret);
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}
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static IMPLEMENT_LHASH_HASH_FN(mem, MEM)
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/* static int app_info_cmp(APP_INFO *a, APP_INFO *b) */
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static int app_info_cmp(const void *a_void, const void *b_void)
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{
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return CRYPTO_THREADID_cmp(&((const APP_INFO *)a_void)->threadid,
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&((const APP_INFO *)b_void)->threadid);
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}
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static IMPLEMENT_LHASH_COMP_FN(app_info, APP_INFO)
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static unsigned long app_info_hash(const APP_INFO *a)
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{
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unsigned long ret;
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ret = CRYPTO_THREADID_hash(&a->threadid);
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/* This is left in as a "who am I to question legacy?" measure */
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ret = ret * 17851 + (ret >> 14) * 7 + (ret >> 4) * 251;
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return (ret);
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}
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static IMPLEMENT_LHASH_HASH_FN(app_info, APP_INFO)
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static APP_INFO *pop_info(void)
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{
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APP_INFO tmp;
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APP_INFO *ret = NULL;
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if (amih != NULL) {
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CRYPTO_THREADID_current(&tmp.threadid);
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if ((ret = lh_APP_INFO_delete(amih, &tmp)) != NULL) {
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APP_INFO *next = ret->next;
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if (next != NULL) {
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next->references++;
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(void)lh_APP_INFO_insert(amih, next);
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}
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#ifdef LEVITTE_DEBUG_MEM
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if (CRYPTO_THREADID_cmp(&ret->threadid, &tmp.threadid)) {
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fprintf(stderr,
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"pop_info(): deleted info has other thread ID (%lu) than the current thread (%lu)!!!!\n",
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CRYPTO_THREADID_hash(&ret->threadid),
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CRYPTO_THREADID_hash(&tmp.threadid));
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abort();
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}
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#endif
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if (--(ret->references) <= 0) {
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ret->next = NULL;
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if (next != NULL)
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next->references--;
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OPENSSL_free(ret);
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}
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}
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}
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return (ret);
|
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}
|
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int CRYPTO_push_info_(const char *info, const char *file, int line)
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{
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APP_INFO *ami, *amim;
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int ret = 0;
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|
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if (is_MemCheck_on()) {
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MemCheck_off(); /* obtain MALLOC2 lock */
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|
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if ((ami = (APP_INFO *)OPENSSL_malloc(sizeof(APP_INFO))) == NULL) {
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ret = 0;
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goto err;
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}
|
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if (amih == NULL) {
|
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if ((amih = lh_APP_INFO_new()) == NULL) {
|
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OPENSSL_free(ami);
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ret = 0;
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goto err;
|
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}
|
|
}
|
|
|
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CRYPTO_THREADID_current(&ami->threadid);
|
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ami->file = file;
|
|
ami->line = line;
|
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ami->info = info;
|
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ami->references = 1;
|
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ami->next = NULL;
|
|
|
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if ((amim = lh_APP_INFO_insert(amih, ami)) != NULL) {
|
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#ifdef LEVITTE_DEBUG_MEM
|
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if (CRYPTO_THREADID_cmp(&ami->threadid, &amim->threadid)) {
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fprintf(stderr,
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"CRYPTO_push_info(): previous info has other thread ID (%lu) than the current thread (%lu)!!!!\n",
|
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CRYPTO_THREADID_hash(&amim->threadid),
|
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CRYPTO_THREADID_hash(&ami->threadid));
|
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abort();
|
|
}
|
|
#endif
|
|
ami->next = amim;
|
|
}
|
|
err:
|
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MemCheck_on(); /* release MALLOC2 lock */
|
|
}
|
|
|
|
return (ret);
|
|
}
|
|
|
|
int CRYPTO_pop_info(void)
|
|
{
|
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int ret = 0;
|
|
|
|
if (is_MemCheck_on()) { /* _must_ be true, or something went severely
|
|
* wrong */
|
|
MemCheck_off(); /* obtain MALLOC2 lock */
|
|
|
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ret = (pop_info() != NULL);
|
|
|
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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:
|
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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
|
|
memset(&m->threadid, 0, sizeof(m->threadid));
|
|
|
|
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;
|
|
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
|
|
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);
|
|
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
|
|
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;
|
|
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
|
|
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;
|
|
(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;
|
|
struct tm *lcl = NULL;
|
|
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) {
|
|
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);
|
|
}
|
|
|
|
BIO_snprintf(bufp, BUF_REMAIN, "number=%d, address=%08lX\n",
|
|
m->num, (unsigned long)m->addr);
|
|
bufp += 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++;
|
|
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);
|
|
buf_len = 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) {
|
|
fprintf(stderr, "Thread switch detected in backtrace!!!!\n");
|
|
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
|
|
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-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);
|
|
}
|