2014-06-20 20:00:00 +01:00
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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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#include <openssl/thread.h>
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#include <errno.h>
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#include <openssl/mem.h>
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#include <openssl/type_check.h>
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/* lock_names contains the names of all the locks defined in thread.h. */
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static const char *const lock_names[] = {
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"<<ERROR>>", "err", "ex_data", "x509",
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"x509_info", "x509_pkey", "x509_crl", "x509_req",
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"dsa", "rsa", "evp_pkey", "x509_store",
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"ssl_ctx", "ssl_cert", "ssl_session", "ssl_sess_cert",
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"ssl", "ssl_method", "rand", "rand2",
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"debug_malloc", "BIO", "gethostbyname", "getservbyname",
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"readdir", "RSA_blinding", "dh", "debug_malloc2",
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"dso", "dynlock", "engine", "ui",
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"ecdsa", "ec", "ecdh", "bn",
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"ec_pre_comp", "store", "comp", "fips",
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"fips2", "obj",
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};
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OPENSSL_COMPILE_ASSERT(CRYPTO_NUM_LOCKS ==
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sizeof(lock_names) / sizeof(lock_names[0]),
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CRYPTO_NUM_LOCKS_inconsistent);
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static void (*locking_callback)(int mode, int lock_num, const char *file,
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int line) = 0;
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static int (*add_lock_callback)(int *pointer, int amount, int lock_num,
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const char *file, int line) = 0;
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static void (*threadid_callback)(CRYPTO_THREADID *) = 0;
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int CRYPTO_num_locks(void) { return CRYPTO_NUM_LOCKS; }
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void CRYPTO_set_locking_callback(void (*func)(int mode, int lock_num,
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const char *file, int line)) {
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locking_callback = func;
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}
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void CRYPTO_set_add_lock_callback(int (*func)(int *num, int mount, int lock_num,
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const char *file, int line)) {
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add_lock_callback = func;
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}
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const char *CRYPTO_get_lock_name(int lock_num) {
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if (lock_num >= 0 && lock_num < CRYPTO_NUM_LOCKS) {
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return lock_names[lock_num];
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} else {
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return "ERROR";
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}
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}
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int CRYPTO_THREADID_set_callback(void (*func)(CRYPTO_THREADID *)) {
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if (threadid_callback) {
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return 0;
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}
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threadid_callback = func;
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return 1;
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}
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void CRYPTO_THREADID_set_numeric(CRYPTO_THREADID *id, unsigned long val) {
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memset(id, 0, sizeof(*id));
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id->val = val;
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}
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void CRYPTO_THREADID_set_pointer(CRYPTO_THREADID *id, void *ptr) {
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memset(id, 0, sizeof(*id));
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id->ptr = ptr;
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}
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void (*CRYPTO_get_locking_callback(void))(int mode, int lock_num,
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const char *file, int line) {
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return locking_callback;
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}
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int (*CRYPTO_get_add_lock_callback(void))(int *num, int mount, int lock_num,
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const char *file, int line) {
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return add_lock_callback;
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}
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void CRYPTO_lock(int mode, int lock_num, const char *file, int line) {
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if (locking_callback != NULL) {
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locking_callback(mode, lock_num, file, line);
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}
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}
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int CRYPTO_add_lock(int *pointer, int amount, int lock_num, const char *file,
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int line) {
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int ret = 0;
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if (add_lock_callback != NULL) {
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ret = add_lock_callback(pointer, amount, lock_num, file, line);
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} else {
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CRYPTO_lock(CRYPTO_LOCK | CRYPTO_WRITE, lock_num, file, line);
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ret = *pointer + amount;
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*pointer = ret;
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CRYPTO_lock(CRYPTO_UNLOCK | CRYPTO_WRITE, lock_num, file, line);
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}
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return ret;
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}
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void CRYPTO_THREADID_current(CRYPTO_THREADID *id) {
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if (threadid_callback) {
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threadid_callback(id);
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return;
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}
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2014-07-31 23:23:51 +01:00
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#if defined(OPENSSL_WINDOWS)
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2014-06-20 20:00:00 +01:00
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CRYPTO_THREADID_set_numeric(id, (unsigned long)GetCurrentThreadId());
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#else
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/* For everything else, default to using the address of 'errno' */
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CRYPTO_THREADID_set_pointer(id, (void *)&errno);
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#endif
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}
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int CRYPTO_THREADID_cmp(const CRYPTO_THREADID *a, const CRYPTO_THREADID *b) {
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return memcmp(a, b, sizeof(*a));
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}
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void CRYPTO_THREADID_cpy(CRYPTO_THREADID *dest, const CRYPTO_THREADID *src) {
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memcpy(dest, src, sizeof(*src));
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}
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uint32_t CRYPTO_THREADID_hash(const CRYPTO_THREADID *id) {
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return OPENSSL_hash32(id, sizeof(CRYPTO_THREADID));
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}
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void CRYPTO_set_id_callback(unsigned long (*func)(void)) {}
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void CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value *(
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*dyn_create_function)(const char *file, int line)) {}
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void CRYPTO_set_dynlock_lock_callback(void (*dyn_lock_function)(
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int mode, struct CRYPTO_dynlock_value *l, const char *file, int line)) {}
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void CRYPTO_set_dynlock_destroy_callback(void (*dyn_destroy_function)(
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struct CRYPTO_dynlock_value *l, const char *file, int line)) {}
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