852 lines
24 KiB
C
852 lines
24 KiB
C
/*
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* Copyright 2016-2019 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include "e_os.h"
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#include "crypto/cryptlib.h"
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#include <openssl/err.h>
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#include "crypto/rand.h"
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#include "internal/bio.h"
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#include <openssl/evp.h>
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#include "crypto/evp.h"
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#include "internal/conf.h"
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#include "crypto/async.h"
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#include "crypto/engine.h"
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#include "internal/comp.h"
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#include "internal/err.h"
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#include "crypto/err.h"
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#include "crypto/objects.h"
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#include <stdlib.h>
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#include <assert.h>
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#include "internal/thread_once.h"
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#include "crypto/dso_conf.h"
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#include "internal/dso.h"
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#include "crypto/store.h"
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static int stopped = 0;
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/*
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* Since per-thread-specific-data destructors are not universally
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* available, i.e. not on Windows, only below CRYPTO_THREAD_LOCAL key
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* is assumed to have destructor associated. And then an effort is made
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* to call this single destructor on non-pthread platform[s].
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*
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* Initial value is "impossible". It is used as guard value to shortcut
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* destructor for threads terminating before libcrypto is initialized or
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* after it's de-initialized. Access to the key doesn't have to be
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* serialized for the said threads, because they didn't use libcrypto
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* and it doesn't matter if they pick "impossible" or dereference real
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* key value and pull NULL past initialization in the first thread that
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* intends to use libcrypto.
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*/
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static union {
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long sane;
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CRYPTO_THREAD_LOCAL value;
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} destructor_key = { -1 };
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static void ossl_init_thread_stop(struct thread_local_inits_st *locals);
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static void ossl_init_thread_destructor(void *local)
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{
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ossl_init_thread_stop((struct thread_local_inits_st *)local);
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}
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static struct thread_local_inits_st *ossl_init_get_thread_local(int alloc)
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{
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struct thread_local_inits_st *local =
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CRYPTO_THREAD_get_local(&destructor_key.value);
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if (alloc) {
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if (local == NULL
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&& (local = OPENSSL_zalloc(sizeof(*local))) != NULL
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&& !CRYPTO_THREAD_set_local(&destructor_key.value, local)) {
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OPENSSL_free(local);
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return NULL;
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}
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} else {
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CRYPTO_THREAD_set_local(&destructor_key.value, NULL);
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}
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return local;
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}
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typedef struct ossl_init_stop_st OPENSSL_INIT_STOP;
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struct ossl_init_stop_st {
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void (*handler)(void);
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OPENSSL_INIT_STOP *next;
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};
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static OPENSSL_INIT_STOP *stop_handlers = NULL;
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static CRYPTO_RWLOCK *init_lock = NULL;
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static CRYPTO_ONCE base = CRYPTO_ONCE_STATIC_INIT;
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static int base_inited = 0;
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DEFINE_RUN_ONCE_STATIC(ossl_init_base)
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{
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CRYPTO_THREAD_LOCAL key;
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#ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_base: Setting up stop handlers\n");
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#endif
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#ifndef OPENSSL_NO_CRYPTO_MDEBUG
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ossl_malloc_setup_failures();
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#endif
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if (!CRYPTO_THREAD_init_local(&key, ossl_init_thread_destructor))
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return 0;
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if ((init_lock = CRYPTO_THREAD_lock_new()) == NULL)
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goto err;
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OPENSSL_cpuid_setup();
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destructor_key.value = key;
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base_inited = 1;
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return 1;
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err:
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#ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_base not ok!\n");
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#endif
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CRYPTO_THREAD_lock_free(init_lock);
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init_lock = NULL;
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CRYPTO_THREAD_cleanup_local(&key);
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return 0;
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}
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static CRYPTO_ONCE register_atexit = CRYPTO_ONCE_STATIC_INIT;
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#if !defined(OPENSSL_SYS_UEFI) && defined(_WIN32)
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static int win32atexit(void)
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{
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OPENSSL_cleanup();
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return 0;
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}
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#endif
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DEFINE_RUN_ONCE_STATIC(ossl_init_register_atexit)
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{
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#ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_register_atexit()\n");
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#endif
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#ifndef OPENSSL_SYS_UEFI
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# ifdef _WIN32
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/* We use _onexit() in preference because it gets called on DLL unload */
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if (_onexit(win32atexit) == NULL)
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return 0;
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# else
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if (atexit(OPENSSL_cleanup) != 0)
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return 0;
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# endif
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#endif
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return 1;
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}
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DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_register_atexit,
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ossl_init_register_atexit)
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{
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#ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_no_register_atexit ok!\n");
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#endif
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/* Do nothing in this case */
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return 1;
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}
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static CRYPTO_ONCE load_crypto_nodelete = CRYPTO_ONCE_STATIC_INIT;
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DEFINE_RUN_ONCE_STATIC(ossl_init_load_crypto_nodelete)
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{
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#ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_load_crypto_nodelete()\n");
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#endif
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#if !defined(OPENSSL_USE_NODELETE) \
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&& !defined(OPENSSL_NO_PINSHARED)
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# if defined(DSO_WIN32) && !defined(_WIN32_WCE)
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{
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HMODULE handle = NULL;
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BOOL ret;
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/* We don't use the DSO route for WIN32 because there is a better way */
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ret = GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS
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| GET_MODULE_HANDLE_EX_FLAG_PIN,
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(void *)&base_inited, &handle);
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# ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: obtained DSO reference? %s\n",
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(ret == TRUE ? "No!" : "Yes."));
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# endif
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return (ret == TRUE) ? 1 : 0;
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}
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# elif !defined(DSO_NONE)
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/*
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* Deliberately leak a reference to ourselves. This will force the library
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* to remain loaded until the atexit() handler is run at process exit.
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*/
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{
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DSO *dso;
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void *err;
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if (!err_shelve_state(&err))
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return 0;
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dso = DSO_dsobyaddr(&base_inited, DSO_FLAG_NO_UNLOAD_ON_FREE);
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# ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: obtained DSO reference? %s\n",
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(dso == NULL ? "No!" : "Yes."));
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/*
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* In case of No!, it is uncertain our exit()-handlers can still be
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* called. After dlclose() the whole library might have been unloaded
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* already.
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*/
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# endif
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DSO_free(dso);
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err_unshelve_state(err);
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}
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# endif
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#endif
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return 1;
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}
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static CRYPTO_ONCE load_crypto_strings = CRYPTO_ONCE_STATIC_INIT;
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static int load_crypto_strings_inited = 0;
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DEFINE_RUN_ONCE_STATIC(ossl_init_load_crypto_strings)
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{
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int ret = 1;
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/*
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* OPENSSL_NO_AUTOERRINIT is provided here to prevent at compile time
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* pulling in all the error strings during static linking
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*/
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#if !defined(OPENSSL_NO_ERR) && !defined(OPENSSL_NO_AUTOERRINIT)
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# ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_load_crypto_strings: "
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"err_load_crypto_strings_int()\n");
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# endif
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ret = err_load_crypto_strings_int();
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load_crypto_strings_inited = 1;
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#endif
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return ret;
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}
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DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_load_crypto_strings,
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ossl_init_load_crypto_strings)
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{
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/* Do nothing in this case */
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return 1;
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}
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static CRYPTO_ONCE add_all_ciphers = CRYPTO_ONCE_STATIC_INIT;
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DEFINE_RUN_ONCE_STATIC(ossl_init_add_all_ciphers)
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{
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/*
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* OPENSSL_NO_AUTOALGINIT is provided here to prevent at compile time
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* pulling in all the ciphers during static linking
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*/
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#ifndef OPENSSL_NO_AUTOALGINIT
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# ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_add_all_ciphers: "
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"openssl_add_all_ciphers_int()\n");
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# endif
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openssl_add_all_ciphers_int();
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#endif
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return 1;
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}
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DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_add_all_ciphers,
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ossl_init_add_all_ciphers)
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{
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/* Do nothing */
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return 1;
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}
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static CRYPTO_ONCE add_all_digests = CRYPTO_ONCE_STATIC_INIT;
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DEFINE_RUN_ONCE_STATIC(ossl_init_add_all_digests)
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{
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/*
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* OPENSSL_NO_AUTOALGINIT is provided here to prevent at compile time
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* pulling in all the ciphers during static linking
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*/
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#ifndef OPENSSL_NO_AUTOALGINIT
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# ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_add_all_digests: "
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"openssl_add_all_digests()\n");
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# endif
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openssl_add_all_digests_int();
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#endif
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return 1;
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}
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DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_add_all_digests,
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ossl_init_add_all_digests)
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{
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/* Do nothing */
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return 1;
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}
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static CRYPTO_ONCE config = CRYPTO_ONCE_STATIC_INIT;
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static int config_inited = 0;
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static const OPENSSL_INIT_SETTINGS *conf_settings = NULL;
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DEFINE_RUN_ONCE_STATIC(ossl_init_config)
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{
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int ret = openssl_config_int(conf_settings);
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config_inited = 1;
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return ret;
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}
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DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_config, ossl_init_config)
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{
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#ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr,
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"OPENSSL_INIT: ossl_init_config: openssl_no_config_int()\n");
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#endif
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openssl_no_config_int();
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config_inited = 1;
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return 1;
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}
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static CRYPTO_ONCE async = CRYPTO_ONCE_STATIC_INIT;
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static int async_inited = 0;
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DEFINE_RUN_ONCE_STATIC(ossl_init_async)
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{
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#ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_async: async_init()\n");
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#endif
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if (!async_init())
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return 0;
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async_inited = 1;
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return 1;
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}
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#ifndef OPENSSL_NO_ENGINE
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static CRYPTO_ONCE engine_openssl = CRYPTO_ONCE_STATIC_INIT;
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DEFINE_RUN_ONCE_STATIC(ossl_init_engine_openssl)
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{
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# ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_openssl: "
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"engine_load_openssl_int()\n");
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# endif
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engine_load_openssl_int();
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return 1;
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}
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# ifndef OPENSSL_NO_DEVCRYPTOENG
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static CRYPTO_ONCE engine_devcrypto = CRYPTO_ONCE_STATIC_INIT;
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DEFINE_RUN_ONCE_STATIC(ossl_init_engine_devcrypto)
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{
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# ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_devcrypto: "
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"engine_load_devcrypto_int()\n");
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# endif
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engine_load_devcrypto_int();
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return 1;
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}
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# endif
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# ifndef OPENSSL_NO_RDRAND
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static CRYPTO_ONCE engine_rdrand = CRYPTO_ONCE_STATIC_INIT;
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DEFINE_RUN_ONCE_STATIC(ossl_init_engine_rdrand)
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{
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# ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_rdrand: "
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"engine_load_rdrand_int()\n");
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# endif
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engine_load_rdrand_int();
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return 1;
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}
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# endif
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static CRYPTO_ONCE engine_dynamic = CRYPTO_ONCE_STATIC_INIT;
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DEFINE_RUN_ONCE_STATIC(ossl_init_engine_dynamic)
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{
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# ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_dynamic: "
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"engine_load_dynamic_int()\n");
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# endif
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engine_load_dynamic_int();
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return 1;
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}
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# ifndef OPENSSL_NO_STATIC_ENGINE
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# if !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_HW_PADLOCK)
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static CRYPTO_ONCE engine_padlock = CRYPTO_ONCE_STATIC_INIT;
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DEFINE_RUN_ONCE_STATIC(ossl_init_engine_padlock)
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{
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# ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_padlock: "
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"engine_load_padlock_int()\n");
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# endif
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engine_load_padlock_int();
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return 1;
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}
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# endif
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# if defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_NO_CAPIENG)
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static CRYPTO_ONCE engine_capi = CRYPTO_ONCE_STATIC_INIT;
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DEFINE_RUN_ONCE_STATIC(ossl_init_engine_capi)
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{
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# ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_capi: "
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"engine_load_capi_int()\n");
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# endif
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engine_load_capi_int();
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return 1;
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}
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# endif
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# if !defined(OPENSSL_NO_AFALGENG)
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static CRYPTO_ONCE engine_afalg = CRYPTO_ONCE_STATIC_INIT;
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DEFINE_RUN_ONCE_STATIC(ossl_init_engine_afalg)
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{
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# ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_afalg: "
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"engine_load_afalg_int()\n");
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# endif
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engine_load_afalg_int();
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return 1;
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}
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# endif
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# endif
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#endif
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#ifndef OPENSSL_NO_COMP
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static CRYPTO_ONCE zlib = CRYPTO_ONCE_STATIC_INIT;
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static int zlib_inited = 0;
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DEFINE_RUN_ONCE_STATIC(ossl_init_zlib)
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{
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/* Do nothing - we need to know about this for the later cleanup */
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zlib_inited = 1;
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return 1;
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}
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#endif
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static void ossl_init_thread_stop(struct thread_local_inits_st *locals)
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{
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/* Can't do much about this */
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if (locals == NULL)
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return;
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if (locals->async) {
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#ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_stop: "
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"async_delete_thread_state()\n");
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#endif
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async_delete_thread_state();
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}
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if (locals->err_state) {
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#ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_stop: "
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"err_delete_thread_state()\n");
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#endif
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err_delete_thread_state();
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}
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if (locals->rand) {
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#ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_stop: "
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"drbg_delete_thread_state()\n");
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#endif
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drbg_delete_thread_state();
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}
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OPENSSL_free(locals);
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}
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void OPENSSL_thread_stop(void)
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{
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if (destructor_key.sane != -1)
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ossl_init_thread_stop(ossl_init_get_thread_local(0));
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}
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int ossl_init_thread_start(uint64_t opts)
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{
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struct thread_local_inits_st *locals;
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if (!OPENSSL_init_crypto(0, NULL))
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return 0;
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locals = ossl_init_get_thread_local(1);
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if (locals == NULL)
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return 0;
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if (opts & OPENSSL_INIT_THREAD_ASYNC) {
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#ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_start: "
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"marking thread for async\n");
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#endif
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locals->async = 1;
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}
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if (opts & OPENSSL_INIT_THREAD_ERR_STATE) {
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#ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_start: "
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"marking thread for err_state\n");
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#endif
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locals->err_state = 1;
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}
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if (opts & OPENSSL_INIT_THREAD_RAND) {
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#ifdef OPENSSL_INIT_DEBUG
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fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_start: "
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"marking thread for rand\n");
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#endif
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locals->rand = 1;
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}
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return 1;
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}
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void OPENSSL_cleanup(void)
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{
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OPENSSL_INIT_STOP *currhandler, *lasthandler;
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CRYPTO_THREAD_LOCAL key;
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/* If we've not been inited then no need to deinit */
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if (!base_inited)
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return;
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/* Might be explicitly called and also by atexit */
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if (stopped)
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return;
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|
stopped = 1;
|
|
|
|
/*
|
|
* Thread stop may not get automatically called by the thread library for
|
|
* the very last thread in some situations, so call it directly.
|
|
*/
|
|
ossl_init_thread_stop(ossl_init_get_thread_local(0));
|
|
|
|
currhandler = stop_handlers;
|
|
while (currhandler != NULL) {
|
|
currhandler->handler();
|
|
lasthandler = currhandler;
|
|
currhandler = currhandler->next;
|
|
OPENSSL_free(lasthandler);
|
|
}
|
|
stop_handlers = NULL;
|
|
|
|
CRYPTO_THREAD_lock_free(init_lock);
|
|
init_lock = NULL;
|
|
|
|
/*
|
|
* We assume we are single-threaded for this function, i.e. no race
|
|
* conditions for the various "*_inited" vars below.
|
|
*/
|
|
|
|
#ifndef OPENSSL_NO_COMP
|
|
if (zlib_inited) {
|
|
#ifdef OPENSSL_INIT_DEBUG
|
|
fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
|
|
"comp_zlib_cleanup_int()\n");
|
|
#endif
|
|
comp_zlib_cleanup_int();
|
|
}
|
|
#endif
|
|
|
|
if (async_inited) {
|
|
# ifdef OPENSSL_INIT_DEBUG
|
|
fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
|
|
"async_deinit()\n");
|
|
# endif
|
|
async_deinit();
|
|
}
|
|
|
|
if (load_crypto_strings_inited) {
|
|
#ifdef OPENSSL_INIT_DEBUG
|
|
fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
|
|
"err_free_strings_int()\n");
|
|
#endif
|
|
err_free_strings_int();
|
|
}
|
|
|
|
key = destructor_key.value;
|
|
destructor_key.sane = -1;
|
|
CRYPTO_THREAD_cleanup_local(&key);
|
|
|
|
#ifdef OPENSSL_INIT_DEBUG
|
|
fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
|
|
"rand_cleanup_int()\n");
|
|
fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
|
|
"conf_modules_free_int()\n");
|
|
#ifndef OPENSSL_NO_ENGINE
|
|
fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
|
|
"engine_cleanup_int()\n");
|
|
#endif
|
|
fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
|
|
"crypto_cleanup_all_ex_data_int()\n");
|
|
fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
|
|
"bio_sock_cleanup_int()\n");
|
|
fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
|
|
"bio_cleanup()\n");
|
|
fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
|
|
"evp_cleanup_int()\n");
|
|
fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
|
|
"obj_cleanup_int()\n");
|
|
fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
|
|
"err_cleanup()\n");
|
|
#endif
|
|
/*
|
|
* Note that cleanup order is important:
|
|
* - rand_cleanup_int could call an ENGINE's RAND cleanup function so
|
|
* must be called before engine_cleanup_int()
|
|
* - ENGINEs use CRYPTO_EX_DATA and therefore, must be cleaned up
|
|
* before the ex data handlers are wiped in CRYPTO_cleanup_all_ex_data().
|
|
* - conf_modules_free_int() can end up in ENGINE code so must be called
|
|
* before engine_cleanup_int()
|
|
* - ENGINEs and additional EVP algorithms might use added OIDs names so
|
|
* obj_cleanup_int() must be called last
|
|
*/
|
|
rand_cleanup_int();
|
|
rand_drbg_cleanup_int();
|
|
conf_modules_free_int();
|
|
#ifndef OPENSSL_NO_ENGINE
|
|
engine_cleanup_int();
|
|
#endif
|
|
ossl_store_cleanup_int();
|
|
crypto_cleanup_all_ex_data_int();
|
|
bio_cleanup();
|
|
evp_cleanup_int();
|
|
obj_cleanup_int();
|
|
err_cleanup();
|
|
|
|
CRYPTO_secure_malloc_done();
|
|
|
|
base_inited = 0;
|
|
}
|
|
|
|
/*
|
|
* If this function is called with a non NULL settings value then it must be
|
|
* called prior to any threads making calls to any OpenSSL functions,
|
|
* i.e. passing a non-null settings value is assumed to be single-threaded.
|
|
*/
|
|
int OPENSSL_init_crypto(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings)
|
|
{
|
|
if (stopped) {
|
|
if (!(opts & OPENSSL_INIT_BASE_ONLY))
|
|
CRYPTOerr(CRYPTO_F_OPENSSL_INIT_CRYPTO, ERR_R_INIT_FAIL);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* When the caller specifies OPENSSL_INIT_BASE_ONLY, that should be the
|
|
* *only* option specified. With that option we return immediately after
|
|
* doing the requested limited initialization. Note that
|
|
* err_shelve_state() called by us via ossl_init_load_crypto_nodelete()
|
|
* re-enters OPENSSL_init_crypto() with OPENSSL_INIT_BASE_ONLY, but with
|
|
* base already initialized this is a harmless NOOP.
|
|
*
|
|
* If we remain the only caller of err_shelve_state() the recursion should
|
|
* perhaps be removed, but if in doubt, it can be left in place.
|
|
*/
|
|
if (!RUN_ONCE(&base, ossl_init_base))
|
|
return 0;
|
|
if (opts & OPENSSL_INIT_BASE_ONLY)
|
|
return 1;
|
|
|
|
/*
|
|
* Now we don't always set up exit handlers, the INIT_BASE_ONLY calls
|
|
* should not have the side-effect of setting up exit handlers, and
|
|
* therefore, this code block is below the INIT_BASE_ONLY-conditioned early
|
|
* return above.
|
|
*/
|
|
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 (!RUN_ONCE(&load_crypto_nodelete, ossl_init_load_crypto_nodelete))
|
|
return 0;
|
|
|
|
if ((opts & OPENSSL_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)
|
|
&& !RUN_ONCE(&load_crypto_strings, ossl_init_load_crypto_strings))
|
|
return 0;
|
|
|
|
if ((opts & OPENSSL_INIT_NO_ADD_ALL_CIPHERS)
|
|
&& !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)
|
|
&& !RUN_ONCE(&add_all_ciphers, ossl_init_add_all_ciphers))
|
|
return 0;
|
|
|
|
if ((opts & OPENSSL_INIT_NO_ADD_ALL_DIGESTS)
|
|
&& !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_ATFORK)
|
|
&& !openssl_init_fork_handlers())
|
|
return 0;
|
|
|
|
if ((opts & OPENSSL_INIT_NO_LOAD_CONFIG)
|
|
&& !RUN_ONCE_ALT(&config, ossl_init_no_config, ossl_init_config))
|
|
return 0;
|
|
|
|
if (opts & OPENSSL_INIT_LOAD_CONFIG) {
|
|
int ret;
|
|
CRYPTO_THREAD_write_lock(init_lock);
|
|
conf_settings = settings;
|
|
ret = RUN_ONCE(&config, ossl_init_config);
|
|
conf_settings = NULL;
|
|
CRYPTO_THREAD_unlock(init_lock);
|
|
if (ret <= 0)
|
|
return 0;
|
|
}
|
|
|
|
if ((opts & OPENSSL_INIT_ASYNC)
|
|
&& !RUN_ONCE(&async, ossl_init_async))
|
|
return 0;
|
|
|
|
#ifndef OPENSSL_NO_ENGINE
|
|
if ((opts & OPENSSL_INIT_ENGINE_OPENSSL)
|
|
&& !RUN_ONCE(&engine_openssl, ossl_init_engine_openssl))
|
|
return 0;
|
|
# if !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_DEVCRYPTOENG)
|
|
if ((opts & OPENSSL_INIT_ENGINE_CRYPTODEV)
|
|
&& !RUN_ONCE(&engine_devcrypto, ossl_init_engine_devcrypto))
|
|
return 0;
|
|
# endif
|
|
# ifndef OPENSSL_NO_RDRAND
|
|
if ((opts & OPENSSL_INIT_ENGINE_RDRAND)
|
|
&& !RUN_ONCE(&engine_rdrand, ossl_init_engine_rdrand))
|
|
return 0;
|
|
# endif
|
|
if ((opts & OPENSSL_INIT_ENGINE_DYNAMIC)
|
|
&& !RUN_ONCE(&engine_dynamic, ossl_init_engine_dynamic))
|
|
return 0;
|
|
# ifndef OPENSSL_NO_STATIC_ENGINE
|
|
# if !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_HW_PADLOCK)
|
|
if ((opts & OPENSSL_INIT_ENGINE_PADLOCK)
|
|
&& !RUN_ONCE(&engine_padlock, ossl_init_engine_padlock))
|
|
return 0;
|
|
# endif
|
|
# if defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_NO_CAPIENG)
|
|
if ((opts & OPENSSL_INIT_ENGINE_CAPI)
|
|
&& !RUN_ONCE(&engine_capi, ossl_init_engine_capi))
|
|
return 0;
|
|
# endif
|
|
# if !defined(OPENSSL_NO_AFALGENG)
|
|
if ((opts & OPENSSL_INIT_ENGINE_AFALG)
|
|
&& !RUN_ONCE(&engine_afalg, ossl_init_engine_afalg))
|
|
return 0;
|
|
# endif
|
|
# endif
|
|
if (opts & (OPENSSL_INIT_ENGINE_ALL_BUILTIN
|
|
| OPENSSL_INIT_ENGINE_OPENSSL
|
|
| OPENSSL_INIT_ENGINE_AFALG)) {
|
|
ENGINE_register_all_complete();
|
|
}
|
|
#endif
|
|
|
|
#ifndef OPENSSL_NO_COMP
|
|
if ((opts & OPENSSL_INIT_ZLIB)
|
|
&& !RUN_ONCE(&zlib, ossl_init_zlib))
|
|
return 0;
|
|
#endif
|
|
|
|
return 1;
|
|
}
|
|
|
|
int OPENSSL_atexit(void (*handler)(void))
|
|
{
|
|
OPENSSL_INIT_STOP *newhand;
|
|
|
|
#if !defined(OPENSSL_USE_NODELETE)\
|
|
&& !defined(OPENSSL_NO_PINSHARED)
|
|
{
|
|
union {
|
|
void *sym;
|
|
void (*func)(void);
|
|
} handlersym;
|
|
|
|
handlersym.func = handler;
|
|
# if defined(DSO_WIN32) && !defined(_WIN32_WCE)
|
|
{
|
|
HMODULE handle = NULL;
|
|
BOOL ret;
|
|
|
|
/*
|
|
* We don't use the DSO route for WIN32 because there is a better
|
|
* way
|
|
*/
|
|
ret = GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS
|
|
| GET_MODULE_HANDLE_EX_FLAG_PIN,
|
|
handlersym.sym, &handle);
|
|
|
|
if (!ret)
|
|
return 0;
|
|
}
|
|
# elif !defined(DSO_NONE)
|
|
/*
|
|
* Deliberately leak a reference to the handler. This will force the
|
|
* library/code containing the handler to remain loaded until we run the
|
|
* atexit handler. If -znodelete has been used then this is
|
|
* unnecessary.
|
|
*/
|
|
{
|
|
DSO *dso = NULL;
|
|
|
|
ERR_set_mark();
|
|
dso = DSO_dsobyaddr(handlersym.sym, DSO_FLAG_NO_UNLOAD_ON_FREE);
|
|
# ifdef OPENSSL_INIT_DEBUG
|
|
fprintf(stderr,
|
|
"OPENSSL_INIT: OPENSSL_atexit: obtained DSO reference? %s\n",
|
|
(dso == NULL ? "No!" : "Yes."));
|
|
/* See same code above in ossl_init_base() for an explanation. */
|
|
# endif
|
|
DSO_free(dso);
|
|
ERR_pop_to_mark();
|
|
}
|
|
# endif
|
|
}
|
|
#endif
|
|
|
|
if ((newhand = OPENSSL_malloc(sizeof(*newhand))) == NULL) {
|
|
CRYPTOerr(CRYPTO_F_OPENSSL_ATEXIT, ERR_R_MALLOC_FAILURE);
|
|
return 0;
|
|
}
|
|
|
|
newhand->handler = handler;
|
|
newhand->next = stop_handlers;
|
|
stop_handlers = newhand;
|
|
|
|
return 1;
|
|
}
|
|
|
|
#ifdef OPENSSL_SYS_UNIX
|
|
/*
|
|
* The following three functions are for OpenSSL developers. This is
|
|
* where we set/reset state across fork (called via pthread_atfork when
|
|
* it exists, or manually by the application when it doesn't).
|
|
*
|
|
* WARNING! If you put code in either OPENSSL_fork_parent or
|
|
* OPENSSL_fork_child, you MUST MAKE SURE that they are async-signal-
|
|
* safe. See this link, for example:
|
|
* http://man7.org/linux/man-pages/man7/signal-safety.7.html
|
|
*/
|
|
|
|
void OPENSSL_fork_prepare(void)
|
|
{
|
|
}
|
|
|
|
void OPENSSL_fork_parent(void)
|
|
{
|
|
}
|
|
|
|
void OPENSSL_fork_child(void)
|
|
{
|
|
}
|
|
#endif
|