| /* |
| * Copyright 2016-2022 The OpenSSL Project Authors. All Rights Reserved. |
| * |
| * Licensed under the OpenSSL license (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 |
| */ |
| |
| #include "e_os.h" |
| #include "crypto/cryptlib.h" |
| #include <openssl/err.h> |
| #include "crypto/rand.h" |
| #include "internal/bio.h" |
| #include <openssl/evp.h> |
| #include "crypto/evp.h" |
| #include "internal/conf.h" |
| #include "crypto/async.h" |
| #include "crypto/engine.h" |
| #include "internal/comp.h" |
| #include "internal/err.h" |
| #include "crypto/err.h" |
| #include "crypto/objects.h" |
| #include <stdlib.h> |
| #include <assert.h> |
| #include "internal/thread_once.h" |
| #include "crypto/dso_conf.h" |
| #include "internal/dso.h" |
| #include "crypto/store.h" |
| |
| static int stopped = 0; |
| |
| /* |
| * 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 dereference 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 void ossl_init_thread_stop(struct thread_local_inits_st *locals); |
| |
| 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(&destructor_key.value); |
| |
| if (alloc) { |
| if (local == NULL |
| && (local = OPENSSL_zalloc(sizeof(*local))) != NULL |
| && !CRYPTO_THREAD_set_local(&destructor_key.value, local)) { |
| OPENSSL_free(local); |
| return NULL; |
| } |
| } else { |
| CRYPTO_THREAD_set_local(&destructor_key.value, NULL); |
| } |
| |
| return local; |
| } |
| |
| typedef struct ossl_init_stop_st OPENSSL_INIT_STOP; |
| struct ossl_init_stop_st { |
| void (*handler)(void); |
| OPENSSL_INIT_STOP *next; |
| }; |
| |
| static OPENSSL_INIT_STOP *stop_handlers = NULL; |
| static CRYPTO_RWLOCK *init_lock = NULL; |
| |
| static CRYPTO_ONCE base = CRYPTO_ONCE_STATIC_INIT; |
| 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 |
| if (!CRYPTO_THREAD_init_local(&key, ossl_init_thread_destructor)) |
| return 0; |
| if ((init_lock = CRYPTO_THREAD_lock_new()) == NULL) |
| goto err; |
| OPENSSL_cpuid_setup(); |
| |
| destructor_key.value = key; |
| base_inited = 1; |
| return 1; |
| |
| err: |
| #ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: ossl_init_base not ok!\n"); |
| #endif |
| CRYPTO_THREAD_lock_free(init_lock); |
| init_lock = NULL; |
| |
| CRYPTO_THREAD_cleanup_local(&key); |
| return 0; |
| } |
| |
| static CRYPTO_ONCE register_atexit = CRYPTO_ONCE_STATIC_INIT; |
| #if !defined(OPENSSL_SYS_UEFI) && defined(_WIN32) |
| static int win32atexit(void) |
| { |
| OPENSSL_cleanup(); |
| return 0; |
| } |
| #endif |
| |
| 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 |
| # ifdef _WIN32 |
| /* We use _onexit() in preference because it gets called on DLL unload */ |
| if (_onexit(win32atexit) == NULL) |
| return 0; |
| # else |
| if (atexit(OPENSSL_cleanup) != 0) |
| return 0; |
| # endif |
| #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_USE_NODELETE) \ |
| && !defined(OPENSSL_NO_PINSHARED) |
| # 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, |
| (void *)&base_inited, &handle); |
| |
| # ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: obtained DSO reference? %s\n", |
| (ret == TRUE ? "No!" : "Yes.")); |
| # endif |
| return (ret == TRUE) ? 1 : 0; |
| } |
| # elif !defined(DSO_NONE) |
| /* |
| * Deliberately leak a reference to ourselves. This will force the library |
| * to remain loaded until the atexit() handler is run at process exit. |
| */ |
| { |
| DSO *dso; |
| void *err; |
| |
| if (!err_shelve_state(&err)) |
| return 0; |
| |
| dso = DSO_dsobyaddr(&base_inited, DSO_FLAG_NO_UNLOAD_ON_FREE); |
| # ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: obtained DSO reference? %s\n", |
| (dso == NULL ? "No!" : "Yes.")); |
| /* |
| * In case of No!, it is uncertain our exit()-handlers can still be |
| * called. After dlclose() the whole library might have been unloaded |
| * already. |
| */ |
| # endif |
| DSO_free(dso); |
| err_unshelve_state(err); |
| } |
| # endif |
| #endif |
| |
| return 1; |
| } |
| |
| static CRYPTO_ONCE load_crypto_strings = CRYPTO_ONCE_STATIC_INIT; |
| |
| DEFINE_RUN_ONCE_STATIC(ossl_init_load_crypto_strings) |
| { |
| int ret = 1; |
| /* |
| * OPENSSL_NO_AUTOERRINIT is provided here to prevent at compile time |
| * pulling in all the error strings during static linking |
| */ |
| #if !defined(OPENSSL_NO_ERR) && !defined(OPENSSL_NO_AUTOERRINIT) |
| # ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: ossl_init_load_crypto_strings: " |
| "err_load_crypto_strings_int()\n"); |
| # endif |
| ret = err_load_crypto_strings_int(); |
| #endif |
| 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) |
| { |
| /* |
| * OPENSSL_NO_AUTOALGINIT is provided here to prevent at compile time |
| * pulling in all the ciphers during static linking |
| */ |
| #ifndef OPENSSL_NO_AUTOALGINIT |
| # ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: ossl_init_add_all_ciphers: " |
| "openssl_add_all_ciphers_int()\n"); |
| # endif |
| openssl_add_all_ciphers_int(); |
| #endif |
| 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) |
| { |
| /* |
| * OPENSSL_NO_AUTOALGINIT is provided here to prevent at compile time |
| * pulling in all the ciphers during static linking |
| */ |
| #ifndef OPENSSL_NO_AUTOALGINIT |
| # ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: ossl_init_add_all_digests: " |
| "openssl_add_all_digests()\n"); |
| # endif |
| openssl_add_all_digests_int(); |
| #endif |
| return 1; |
| } |
| |
| DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_add_all_digests, |
| ossl_init_add_all_digests) |
| { |
| /* Do nothing */ |
| return 1; |
| } |
| |
| static CRYPTO_ONCE config = CRYPTO_ONCE_STATIC_INIT; |
| static int config_inited = 0; |
| static const OPENSSL_INIT_SETTINGS *conf_settings = NULL; |
| DEFINE_RUN_ONCE_STATIC(ossl_init_config) |
| { |
| int ret = openssl_config_int(conf_settings); |
| config_inited = 1; |
| return ret; |
| } |
| DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_config, ossl_init_config) |
| { |
| #ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, |
| "OPENSSL_INIT: ossl_init_config: openssl_no_config_int()\n"); |
| #endif |
| openssl_no_config_int(); |
| config_inited = 1; |
| return 1; |
| } |
| |
| static CRYPTO_ONCE async = CRYPTO_ONCE_STATIC_INIT; |
| static int async_inited = 0; |
| DEFINE_RUN_ONCE_STATIC(ossl_init_async) |
| { |
| #ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: ossl_init_async: async_init()\n"); |
| #endif |
| if (!async_init()) |
| return 0; |
| async_inited = 1; |
| return 1; |
| } |
| |
| #ifndef OPENSSL_NO_ENGINE |
| static CRYPTO_ONCE engine_openssl = CRYPTO_ONCE_STATIC_INIT; |
| DEFINE_RUN_ONCE_STATIC(ossl_init_engine_openssl) |
| { |
| # ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_openssl: " |
| "engine_load_openssl_int()\n"); |
| # endif |
| engine_load_openssl_int(); |
| return 1; |
| } |
| # ifndef OPENSSL_NO_DEVCRYPTOENG |
| static CRYPTO_ONCE engine_devcrypto = CRYPTO_ONCE_STATIC_INIT; |
| DEFINE_RUN_ONCE_STATIC(ossl_init_engine_devcrypto) |
| { |
| # ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_devcrypto: " |
| "engine_load_devcrypto_int()\n"); |
| # endif |
| engine_load_devcrypto_int(); |
| return 1; |
| } |
| # endif |
| |
| # ifndef OPENSSL_NO_RDRAND |
| static CRYPTO_ONCE engine_rdrand = CRYPTO_ONCE_STATIC_INIT; |
| DEFINE_RUN_ONCE_STATIC(ossl_init_engine_rdrand) |
| { |
| # ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_rdrand: " |
| "engine_load_rdrand_int()\n"); |
| # endif |
| engine_load_rdrand_int(); |
| return 1; |
| } |
| # endif |
| static CRYPTO_ONCE engine_dynamic = CRYPTO_ONCE_STATIC_INIT; |
| DEFINE_RUN_ONCE_STATIC(ossl_init_engine_dynamic) |
| { |
| # ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_dynamic: " |
| "engine_load_dynamic_int()\n"); |
| # endif |
| engine_load_dynamic_int(); |
| return 1; |
| } |
| # ifndef OPENSSL_NO_STATIC_ENGINE |
| # if !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_HW_PADLOCK) |
| static CRYPTO_ONCE engine_padlock = CRYPTO_ONCE_STATIC_INIT; |
| DEFINE_RUN_ONCE_STATIC(ossl_init_engine_padlock) |
| { |
| # ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_padlock: " |
| "engine_load_padlock_int()\n"); |
| # endif |
| engine_load_padlock_int(); |
| return 1; |
| } |
| # endif |
| # if defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_NO_CAPIENG) |
| static CRYPTO_ONCE engine_capi = CRYPTO_ONCE_STATIC_INIT; |
| DEFINE_RUN_ONCE_STATIC(ossl_init_engine_capi) |
| { |
| # ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_capi: " |
| "engine_load_capi_int()\n"); |
| # endif |
| engine_load_capi_int(); |
| return 1; |
| } |
| # endif |
| # if !defined(OPENSSL_NO_AFALGENG) |
| static CRYPTO_ONCE engine_afalg = CRYPTO_ONCE_STATIC_INIT; |
| DEFINE_RUN_ONCE_STATIC(ossl_init_engine_afalg) |
| { |
| # ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_afalg: " |
| "engine_load_afalg_int()\n"); |
| # endif |
| engine_load_afalg_int(); |
| return 1; |
| } |
| # endif |
| # endif |
| #endif |
| |
| #ifndef OPENSSL_NO_COMP |
| static CRYPTO_ONCE zlib = CRYPTO_ONCE_STATIC_INIT; |
| |
| static int zlib_inited = 0; |
| DEFINE_RUN_ONCE_STATIC(ossl_init_zlib) |
| { |
| /* Do nothing - we need to know about this for the later cleanup */ |
| zlib_inited = 1; |
| return 1; |
| } |
| #endif |
| |
| static void ossl_init_thread_stop(struct thread_local_inits_st *locals) |
| { |
| /* Can't do much about this */ |
| if (locals == NULL) |
| return; |
| |
| if (locals->async) { |
| #ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_stop: " |
| "async_delete_thread_state()\n"); |
| #endif |
| async_delete_thread_state(); |
| } |
| |
| if (locals->err_state) { |
| #ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_stop: " |
| "err_delete_thread_state()\n"); |
| #endif |
| err_delete_thread_state(); |
| } |
| |
| if (locals->rand) { |
| #ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_stop: " |
| "drbg_delete_thread_state()\n"); |
| #endif |
| drbg_delete_thread_state(); |
| } |
| |
| OPENSSL_free(locals); |
| } |
| |
| void OPENSSL_thread_stop(void) |
| { |
| if (destructor_key.sane != -1) |
| ossl_init_thread_stop(ossl_init_get_thread_local(0)); |
| } |
| |
| int ossl_init_thread_start(uint64_t opts) |
| { |
| struct thread_local_inits_st *locals; |
| |
| if (!OPENSSL_init_crypto(0, NULL)) |
| return 0; |
| |
| locals = ossl_init_get_thread_local(1); |
| |
| if (locals == NULL) |
| return 0; |
| |
| if (opts & OPENSSL_INIT_THREAD_ASYNC) { |
| #ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_start: " |
| "marking thread for async\n"); |
| #endif |
| locals->async = 1; |
| } |
| |
| if (opts & OPENSSL_INIT_THREAD_ERR_STATE) { |
| #ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_start: " |
| "marking thread for err_state\n"); |
| #endif |
| locals->err_state = 1; |
| } |
| |
| if (opts & OPENSSL_INIT_THREAD_RAND) { |
| #ifdef OPENSSL_INIT_DEBUG |
| fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_start: " |
| "marking thread for rand\n"); |
| #endif |
| locals->rand = 1; |
| } |
| |
| return 1; |
| } |
| |
| 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) |
| return; |
| |
| /* Might be explicitly called and also by atexit */ |
| if (stopped) |
| return; |
| 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(); |
| } |
| |
| 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 |