-/* ====================================================================
- * 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).
- *
- */
-/* 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 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
- * ECDH support in OpenSSL originally developed by
- * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
- */
-
-#include "internal/cryptlib.h"
-#include <openssl/safestack.h>
-
-#if defined(OPENSSL_SYS_WIN32)
-static double OpenSSL_MSVC5_hack = 0.0; /* and for VC1.5 */
-#endif
-
-/* real #defines in crypto.h, keep these upto date */
-static const char *const lock_names[CRYPTO_NUM_LOCKS] = {
- "<<ERROR>>",
- "err",
- "ex_data",
- "x509",
- "x509_info",
- "x509_pkey",
- "x509_crl",
- "x509_req",
- "dsa",
- "rsa",
- "evp_pkey",
- "x509_store",
- "ssl_ctx",
- "ssl_cert",
- "ssl_session",
- "ssl_sess_cert",
- "ssl",
- "ssl_method",
- "rand",
- "rand2",
- "debug_malloc",
- "BIO",
- "gethostbyname",
- "getservbyname",
- "readdir",
- "RSA_blinding",
- "dh",
- "debug_malloc2",
- "dso",
- "dynlock",
- "engine",
- "ui",
- "ecdsa",
- "ec",
- "ecdh",
- "bn",
- "ec_pre_comp",
- "store",
- "comp",
- "fips",
- "fips2",
-#if CRYPTO_NUM_LOCKS != 41
-# error "Inconsistency between crypto.h and cryptlib.c"
-#endif
-};
-
-/*
- * This is for applications to allocate new type names in the non-dynamic
- * array of lock names. These are numbered with positive numbers.
- */
-static STACK_OF(OPENSSL_STRING) *app_locks = NULL;
-
-/*
- * For applications that want a more dynamic way of handling threads, the
- * following stack is used. These are externally numbered with negative
- * numbers.
- */
-static STACK_OF(CRYPTO_dynlock) *dyn_locks = NULL;
-
-static void (*locking_callback) (int mode, int type,
- const char *file, int line) = 0;
-static int (*add_lock_callback) (int *pointer, int amount,
- int type, const char *file, int line) = 0;
-static struct CRYPTO_dynlock_value *(*dynlock_create_callback)
- (const char *file, int line) = 0;
-static void (*dynlock_lock_callback) (int mode,
- struct CRYPTO_dynlock_value *l,
- const char *file, int line) = 0;
-static void (*dynlock_destroy_callback) (struct CRYPTO_dynlock_value *l,
- const char *file, int line) = 0;
-
-int CRYPTO_get_new_lockid(char *name)
-{
- char *str;
- int i;
-
-#if defined(OPENSSL_SYS_WIN32)
- /*
- * A hack to make Visual C++ 5.0 work correctly when linking as a DLL
- * using /MT. Without this, the application cannot use any floating point
- * printf's. It also seems to be needed for Visual C 1.5 (win16)
- */
- OpenSSL_MSVC5_hack = (double)name[0] * (double)name[1];
-#endif
-
- if ((app_locks == NULL)
- && ((app_locks = sk_OPENSSL_STRING_new_null()) == NULL)) {
- CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID, ERR_R_MALLOC_FAILURE);
- return (0);
- }
- if ((str = OPENSSL_strdup(name)) == NULL) {
- CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID, ERR_R_MALLOC_FAILURE);
- return (0);
- }
- i = sk_OPENSSL_STRING_push(app_locks, str);
- if (!i)
- OPENSSL_free(str);
- else
- i += CRYPTO_NUM_LOCKS; /* gap of one :-) */
- return (i);
-}
-
-int CRYPTO_num_locks(void)
-{
- return CRYPTO_NUM_LOCKS;
-}
-
-int CRYPTO_get_new_dynlockid(void)
-{
- int i = 0;
- CRYPTO_dynlock *pointer = NULL;
-
- if (dynlock_create_callback == NULL) {
- CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,
- CRYPTO_R_NO_DYNLOCK_CREATE_CALLBACK);
- return (0);
- }
- CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
- if ((dyn_locks == NULL)
- && ((dyn_locks = sk_CRYPTO_dynlock_new_null()) == NULL)) {
- CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
- CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID, ERR_R_MALLOC_FAILURE);
- return (0);
- }
- CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
-
- pointer = OPENSSL_zalloc(sizeof(*pointer));
- if (pointer == NULL) {
- CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID, ERR_R_MALLOC_FAILURE);
- return (0);
- }
- pointer->references = 1;
- pointer->data = dynlock_create_callback(OPENSSL_FILE, OPENSSL_LINE);
- if (pointer->data == NULL) {
- OPENSSL_free(pointer);
- CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID, ERR_R_MALLOC_FAILURE);
- return (0);
- }
-
- CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
- /* First, try to find an existing empty slot */
- i = sk_CRYPTO_dynlock_find(dyn_locks, NULL);
- /* If there was none, push, thereby creating a new one */
- if (i == -1)
- /*
- * Since sk_push() returns the number of items on the stack, not the
- * location of the pushed item, we need to transform the returned
- * number into a position, by decreasing it.
- */
- i = sk_CRYPTO_dynlock_push(dyn_locks, pointer) - 1;
- else
- /*
- * If we found a place with a NULL pointer, put our pointer in it.
- */
- (void)sk_CRYPTO_dynlock_set(dyn_locks, i, pointer);
- CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
-
- if (i == -1) {
- dynlock_destroy_callback(pointer->data, OPENSSL_FILE, OPENSSL_LINE);
- OPENSSL_free(pointer);
- } else
- i += 1; /* to avoid 0 */
- return -i;
-}
-
-void CRYPTO_destroy_dynlockid(int i)
-{
- CRYPTO_dynlock *pointer = NULL;
- if (i)
- i = -i - 1;
- if (dynlock_destroy_callback == NULL)
- return;
-
- CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
-
- if (dyn_locks == NULL || i >= sk_CRYPTO_dynlock_num(dyn_locks)) {
- CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
- return;
- }
- pointer = sk_CRYPTO_dynlock_value(dyn_locks, i);
- if (pointer != NULL) {
- --pointer->references;
-#ifdef REF_DEBUG
- if (pointer->references < 0) {
- OPENSSL_showfatal("CRYPTO_destroy_dynlockid, bad reference count\n");
- abort();
- } else
-#endif
- if (pointer->references <= 0) {
- (void)sk_CRYPTO_dynlock_set(dyn_locks, i, NULL);
- } else
- pointer = NULL;
- }
- CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
-
- if (pointer) {
- dynlock_destroy_callback(pointer->data, OPENSSL_FILE, OPENSSL_LINE);
- OPENSSL_free(pointer);
- }
-}
-
-struct CRYPTO_dynlock_value *CRYPTO_get_dynlock_value(int i)
-{
- CRYPTO_dynlock *pointer = NULL;
- if (i)
- i = -i - 1;
-
- CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
-
- if (dyn_locks != NULL && i < sk_CRYPTO_dynlock_num(dyn_locks))
- pointer = sk_CRYPTO_dynlock_value(dyn_locks, i);
- if (pointer)
- pointer->references++;
-
- CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
-
- if (pointer)
- return pointer->data;
- return NULL;
-}
-
-struct CRYPTO_dynlock_value *(*CRYPTO_get_dynlock_create_callback(void))
- (const char *file, int line) {
- return (dynlock_create_callback);
-}
-
-void (*CRYPTO_get_dynlock_lock_callback(void)) (int mode,
- struct CRYPTO_dynlock_value
- *l, const char *file,
- int line) {
- return (dynlock_lock_callback);
-}
-
-void (*CRYPTO_get_dynlock_destroy_callback(void))
- (struct CRYPTO_dynlock_value *l, const char *file, int line) {
- return (dynlock_destroy_callback);
-}
-
-void CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value *(*func)
- (const char *file, int line))
-{
- dynlock_create_callback = func;
-}
-
-void CRYPTO_set_dynlock_lock_callback(void (*func) (int mode,
- struct
- CRYPTO_dynlock_value *l,
- const char *file,
- int line))
-{
-#ifdef OPENSSL_FIPS
- FIPS_set_locking_callbacks(CRYPTO_lock, CRYPTO_add_lock);
-#endif
- dynlock_lock_callback = func;
-}
-
-void CRYPTO_set_dynlock_destroy_callback(void (*func)
- (struct CRYPTO_dynlock_value *l,
- const char *file, int line))
-{
- dynlock_destroy_callback = func;
-}
-
-void (*CRYPTO_get_locking_callback(void)) (int mode, int type,
- const char *file, int line) {
- return (locking_callback);
-}
-
-int (*CRYPTO_get_add_lock_callback(void)) (int *num, int mount, int type,
- const char *file, int line) {
- return (add_lock_callback);
-}
-
-void CRYPTO_set_locking_callback(void (*func) (int mode, int type,
- const char *file, int line))
-{
-#ifdef OPENSSL_FIPS
- FIPS_set_locking_callbacks(CRYPTO_lock, CRYPTO_add_lock);
-#endif
- locking_callback = func;
-}
-
-void CRYPTO_set_add_lock_callback(int (*func) (int *num, int mount, int type,
- const char *file, int line))
-{
- add_lock_callback = func;
-}
-
-void CRYPTO_lock(int mode, int type, const char *file, int line)
-{
-#ifdef LOCK_DEBUG
- {
- CRYPTO_THREADID id;
- char *rw_text, *operation_text;
-
- if (mode & CRYPTO_LOCK)
- operation_text = "lock ";
- else if (mode & CRYPTO_UNLOCK)
- operation_text = "unlock";
- else
- operation_text = "ERROR ";
-
- if (mode & CRYPTO_READ)
- rw_text = "r";
- else if (mode & CRYPTO_WRITE)
- rw_text = "w";
- else
- rw_text = "ERROR";
-
- CRYPTO_THREADID_current(&id);
- fprintf(stderr, "lock:%08lx:(%s)%s %-18s %s:%d\n",
- CRYPTO_THREADID_hash(&id), rw_text, operation_text,
- CRYPTO_get_lock_name(type), file, line);
- }
-#endif
- if (type < 0) {
- if (dynlock_lock_callback != NULL) {
- struct CRYPTO_dynlock_value *pointer
- = CRYPTO_get_dynlock_value(type);
-
- OPENSSL_assert(pointer != NULL);
-
- dynlock_lock_callback(mode, pointer, file, line);
-
- CRYPTO_destroy_dynlockid(type);
- }
- } else if (locking_callback != NULL)
- locking_callback(mode, type, file, line);
-}
-
-int CRYPTO_add_lock(int *pointer, int amount, int type, const char *file,
- int line)
-{
- int ret = 0;
-
- if (add_lock_callback != NULL) {
-#ifdef LOCK_DEBUG
- int before = *pointer;
-#endif
-
- ret = add_lock_callback(pointer, amount, type, file, line);
-#ifdef LOCK_DEBUG
- {
- CRYPTO_THREADID id;
- CRYPTO_THREADID_current(&id);
- fprintf(stderr, "ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
- CRYPTO_THREADID_hash(&id), before, amount, ret,
- CRYPTO_get_lock_name(type), file, line);
- }
-#endif
- } else {
- CRYPTO_lock(CRYPTO_LOCK | CRYPTO_WRITE, type, file, line);
-
- ret = *pointer + amount;
-#ifdef LOCK_DEBUG
- {
- CRYPTO_THREADID id;
- CRYPTO_THREADID_current(&id);
- fprintf(stderr, "ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
- CRYPTO_THREADID_hash(&id),
- *pointer, amount, ret,
- CRYPTO_get_lock_name(type), file, line);
- }
-#endif
- *pointer = ret;
- CRYPTO_lock(CRYPTO_UNLOCK | CRYPTO_WRITE, type, file, line);
- }
- return (ret);
-}
-
-const char *CRYPTO_get_lock_name(int type)
-{
- if (type < 0)
- return ("dynamic");
- else if (type < CRYPTO_NUM_LOCKS)
- return (lock_names[type]);
- else if (type - CRYPTO_NUM_LOCKS > sk_OPENSSL_STRING_num(app_locks))
- return ("ERROR");
- else
- return (sk_OPENSSL_STRING_value(app_locks, type - CRYPTO_NUM_LOCKS));
-}
projects / openssl.git / blobdiff