/*
* Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
*
- * Licensed under the OpenSSL license (the "License"). You may not use
+ * Licensed under the Apache License 2.0 (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
static int stopped = 0;
-static void ossl_init_thread_stop(struct thread_local_inits_st *locals);
+/*
+ * Since per-thread-specific-data destructors are not universally
+ * available, i.e. not on Windows, only below CRYPTO_THREAD_LOCAL key
+ * is assumed to have destructor associated. And then an effort is made
+ * to call this single destructor on non-pthread platform[s].
+ *
+ * Initial value is "impossible". It is used as guard value to shortcut
+ * destructor for threads terminating before libcrypto is initialized or
+ * after it's de-initialized. Access to the key doesn't have to be
+ * serialized for the said threads, because they didn't use libcrypto
+ * and it doesn't matter if they pick "impossible" or derefernce real
+ * key value and pull NULL past initialization in the first thread that
+ * intends to use libcrypto.
+ */
+static union {
+ long sane;
+ CRYPTO_THREAD_LOCAL value;
+} destructor_key = { -1 };
-static CRYPTO_THREAD_LOCAL threadstopkey;
+static void ossl_init_thread_stop(struct thread_local_inits_st *locals);
-static void ossl_init_thread_stop_wrap(void *local)
+static void ossl_init_thread_destructor(void *local)
{
ossl_init_thread_stop((struct thread_local_inits_st *)local);
}
static struct thread_local_inits_st *ossl_init_get_thread_local(int alloc)
{
struct thread_local_inits_st *local =
- CRYPTO_THREAD_get_local(&threadstopkey);
+ CRYPTO_THREAD_get_local(&destructor_key.value);
- if (local == NULL && alloc) {
- local = OPENSSL_zalloc(sizeof(*local));
- if (local != NULL && !CRYPTO_THREAD_set_local(&threadstopkey, local)) {
+ if (alloc) {
+ if (local == NULL
+ && (local = OPENSSL_zalloc(sizeof(*local))) != NULL
+ && !CRYPTO_THREAD_set_local(&destructor_key.value, local)) {
OPENSSL_free(local);
return NULL;
}
- }
- if (!alloc) {
- CRYPTO_THREAD_set_local(&threadstopkey, NULL);
+ } else {
+ CRYPTO_THREAD_set_local(&destructor_key.value, NULL);
}
return local;
static int base_inited = 0;
DEFINE_RUN_ONCE_STATIC(ossl_init_base)
{
+ CRYPTO_THREAD_LOCAL key;
+
#ifdef OPENSSL_INIT_DEBUG
fprintf(stderr, "OPENSSL_INIT: ossl_init_base: Setting up stop handlers\n");
#endif
#ifndef OPENSSL_NO_CRYPTO_MDEBUG
ossl_malloc_setup_failures();
#endif
- /*
- * We use a dummy thread local key here. We use the destructor to detect
- * when the thread is going to stop (where that feature is available)
- */
- if (!CRYPTO_THREAD_init_local(&threadstopkey, ossl_init_thread_stop_wrap))
+ if (!CRYPTO_THREAD_init_local(&key, ossl_init_thread_destructor))
return 0;
if ((init_lock = CRYPTO_THREAD_lock_new()) == NULL)
goto err;
-#ifndef OPENSSL_SYS_UEFI
- if (atexit(OPENSSL_cleanup) != 0)
- goto err;
-#endif
OPENSSL_cpuid_setup();
+ destructor_key.value = key;
base_inited = 1;
return 1;
CRYPTO_THREAD_lock_free(init_lock);
init_lock = NULL;
- CRYPTO_THREAD_cleanup_local(&threadstopkey);
+ CRYPTO_THREAD_cleanup_local(&key);
return 0;
}
+static CRYPTO_ONCE register_atexit = CRYPTO_ONCE_STATIC_INIT;
+DEFINE_RUN_ONCE_STATIC(ossl_init_register_atexit)
+{
+# ifdef OPENSSL_INIT_DEBUG
+ fprintf(stderr, "OPENSSL_INIT: ossl_init_register_atexit()\n");
+# endif
+#ifndef OPENSSL_SYS_UEFI
+ if (atexit(OPENSSL_cleanup) != 0)
+ return 0;
+#endif
+
+ return 1;
+}
+
+DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_register_atexit,
+ ossl_init_register_atexit)
+{
+#ifdef OPENSSL_INIT_DEBUG
+ fprintf(stderr, "OPENSSL_INIT: ossl_init_no_register_atexit ok!\n");
+#endif
+ /* Do nothing in this case */
+ return 1;
+}
+
static CRYPTO_ONCE load_crypto_nodelete = CRYPTO_ONCE_STATIC_INIT;
DEFINE_RUN_ONCE_STATIC(ossl_init_load_crypto_nodelete)
{
#ifdef OPENSSL_INIT_DEBUG
fprintf(stderr, "OPENSSL_INIT: ossl_init_load_crypto_nodelete()\n");
#endif
-#if !defined(OPENSSL_NO_DSO) && !defined(OPENSSL_USE_NODELETE)
+#if !defined(OPENSSL_NO_DSO) \
+ && !defined(OPENSSL_USE_NODELETE) \
+ && !defined(OPENSSL_NO_PINSHARED)
# ifdef DSO_WIN32
{
HMODULE handle = NULL;
static CRYPTO_ONCE load_crypto_strings = CRYPTO_ONCE_STATIC_INIT;
static int load_crypto_strings_inited = 0;
-DEFINE_RUN_ONCE_STATIC(ossl_init_no_load_crypto_strings)
-{
- /* Do nothing in this case */
- return 1;
-}
-
DEFINE_RUN_ONCE_STATIC(ossl_init_load_crypto_strings)
{
int ret = 1;
return ret;
}
+DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_load_crypto_strings,
+ ossl_init_load_crypto_strings)
+{
+ /* Do nothing in this case */
+ return 1;
+}
+
static CRYPTO_ONCE add_all_ciphers = CRYPTO_ONCE_STATIC_INIT;
DEFINE_RUN_ONCE_STATIC(ossl_init_add_all_ciphers)
{
return 1;
}
+DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_add_all_ciphers,
+ ossl_init_add_all_ciphers)
+{
+ /* Do nothing */
+ return 1;
+}
+
static CRYPTO_ONCE add_all_digests = CRYPTO_ONCE_STATIC_INIT;
DEFINE_RUN_ONCE_STATIC(ossl_init_add_all_digests)
{
return 1;
}
-DEFINE_RUN_ONCE_STATIC(ossl_init_no_add_algs)
+DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_add_all_digests,
+ ossl_init_add_all_digests)
+{
+ /* Do nothing */
+ return 1;
+}
+
+static CRYPTO_ONCE add_all_macs = CRYPTO_ONCE_STATIC_INIT;
+DEFINE_RUN_ONCE_STATIC(ossl_init_add_all_macs)
+{
+ /*
+ * OPENSSL_NO_AUTOALGINIT is provided here to prevent at compile time
+ * pulling in all the macs during static linking
+ */
+#ifndef OPENSSL_NO_AUTOALGINIT
+# ifdef OPENSSL_INIT_DEBUG
+ fprintf(stderr, "OPENSSL_INIT: ossl_init_add_all_macs: "
+ "openssl_add_all_macs_int()\n");
+# endif
+ openssl_add_all_macs_int();
+#endif
+ return 1;
+}
+
+DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_add_all_macs, ossl_init_add_all_macs)
{
/* Do nothing */
return 1;
config_inited = 1;
return 1;
}
-DEFINE_RUN_ONCE_STATIC(ossl_init_no_config)
+DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_config, ossl_init_config)
{
#ifdef OPENSSL_INIT_DEBUG
fprintf(stderr,
if (locals->async) {
#ifdef OPENSSL_INIT_DEBUG
fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_stop: "
- "ASYNC_cleanup_thread()\n");
+ "async_delete_thread_state()\n");
#endif
- ASYNC_cleanup_thread();
+ async_delete_thread_state();
}
if (locals->err_state) {
void OPENSSL_thread_stop(void)
{
- ossl_init_thread_stop(
- (struct thread_local_inits_st *)ossl_init_get_thread_local(0));
+ if (destructor_key.sane != -1)
+ ossl_init_thread_stop(ossl_init_get_thread_local(0));
}
int ossl_init_thread_start(uint64_t opts)
void OPENSSL_cleanup(void)
{
OPENSSL_INIT_STOP *currhandler, *lasthandler;
+ CRYPTO_THREAD_LOCAL key;
/* If we've not been inited then no need to deinit */
if (!base_inited)
err_free_strings_int();
}
- CRYPTO_THREAD_cleanup_local(&threadstopkey);
+ key = destructor_key.value;
+ destructor_key.sane = -1;
+ CRYPTO_THREAD_cleanup_local(&key);
#ifdef OPENSSL_INIT_DEBUG
fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
if (!RUN_ONCE(&base, ossl_init_base))
return 0;
+ if ((opts & OPENSSL_INIT_NO_ATEXIT) != 0) {
+ if (!RUN_ONCE_ALT(®ister_atexit, ossl_init_no_register_atexit,
+ ossl_init_register_atexit))
+ return 0;
+ } else if (!RUN_ONCE(®ister_atexit, ossl_init_register_atexit)) {
+ return 0;
+ }
+
if (!(opts & OPENSSL_INIT_BASE_ONLY)
&& !RUN_ONCE(&load_crypto_nodelete,
ossl_init_load_crypto_nodelete))
return 0;
if ((opts & OPENSSL_INIT_NO_LOAD_CRYPTO_STRINGS)
- && !RUN_ONCE(&load_crypto_strings,
- ossl_init_no_load_crypto_strings))
+ && !RUN_ONCE_ALT(&load_crypto_strings,
+ ossl_init_no_load_crypto_strings,
+ ossl_init_load_crypto_strings))
return 0;
if ((opts & OPENSSL_INIT_LOAD_CRYPTO_STRINGS)
return 0;
if ((opts & OPENSSL_INIT_NO_ADD_ALL_CIPHERS)
- && !RUN_ONCE(&add_all_ciphers, ossl_init_no_add_algs))
+ && !RUN_ONCE_ALT(&add_all_ciphers, ossl_init_no_add_all_ciphers,
+ ossl_init_add_all_ciphers))
return 0;
if ((opts & OPENSSL_INIT_ADD_ALL_CIPHERS)
return 0;
if ((opts & OPENSSL_INIT_NO_ADD_ALL_DIGESTS)
- && !RUN_ONCE(&add_all_digests, ossl_init_no_add_algs))
+ && !RUN_ONCE_ALT(&add_all_digests, ossl_init_no_add_all_digests,
+ ossl_init_add_all_digests))
return 0;
if ((opts & OPENSSL_INIT_ADD_ALL_DIGESTS)
&& !RUN_ONCE(&add_all_digests, ossl_init_add_all_digests))
return 0;
+ if ((opts & OPENSSL_INIT_NO_ADD_ALL_MACS)
+ && !RUN_ONCE_ALT(&add_all_macs, ossl_init_no_add_all_macs,
+ ossl_init_add_all_macs))
+ return 0;
+
+ if ((opts & OPENSSL_INIT_ADD_ALL_MACS)
+ && !RUN_ONCE(&add_all_macs, ossl_init_add_all_macs))
+ return 0;
+
if ((opts & OPENSSL_INIT_ATFORK)
&& !openssl_init_fork_handlers())
return 0;
if ((opts & OPENSSL_INIT_NO_LOAD_CONFIG)
- && !RUN_ONCE(&config, ossl_init_no_config))
+ && !RUN_ONCE_ALT(&config, ossl_init_no_config, ossl_init_config))
return 0;
if (opts & OPENSSL_INIT_LOAD_CONFIG) {
{
OPENSSL_INIT_STOP *newhand;
-#if !defined(OPENSSL_NO_DSO) && !defined(OPENSSL_USE_NODELETE)
+#if !defined(OPENSSL_NO_DSO) \
+ && !defined(OPENSSL_USE_NODELETE)\
+ && !defined(OPENSSL_NO_PINSHARED)
{
union {
void *sym;
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