Function ssl_hook_pre_config

modules/ssl/mod_ssl.c:391–459

}

static int ssl_hook_pre_config(apr_pool_t *pconf,
                               apr_pool_t *plog,
                               apr_pool_t *ptemp)
{
    modssl_running_statically = modssl_is_prelinked();

#if HAVE_OPENSSL_INIT_SSL || (OPENSSL_VERSION_NUMBER >= 0x10100000L && \
                              !defined(LIBRESSL_VERSION_NUMBER))
    /* Openssl v1.1+ handles all initialisation automatically, apart
     * from hints as to how we want to use the library.
     *
     * We tell openssl we want to include engine support.
     */
    OPENSSL_init_ssl(OPENSSL_INIT_ENGINE_ALL_BUILTIN, NULL);

#else
    /* Configuration below is for legacy versions Openssl v1.0 and
     * older.
     */

#if APR_HAS_THREADS && MODSSL_USE_OPENSSL_PRE_1_1_API
    ssl_util_thread_id_setup(pconf);
#endif
#if MODSSL_USE_OPENSSL_PRE_1_1_API || defined(LIBRESSL_VERSION_NUMBER)
    (void)CRYPTO_malloc_init();
#else
    OPENSSL_malloc_init();
#endif
    ERR_load_crypto_strings();
    SSL_load_error_strings();
    SSL_library_init();
#if HAVE_ENGINE_LOAD_BUILTIN_ENGINES
    ENGINE_load_builtin_engines();
#endif
    OpenSSL_add_all_algorithms();
    OPENSSL_load_builtin_modules();
#endif

    if (OBJ_txt2nid("id-on-dnsSRV") == NID_undef) {
        (void)OBJ_create("1.3.6.1.5.5.7.8.7", "id-on-dnsSRV",
                         "SRVName otherName form");
    }

    /* Start w/o errors (e.g. OBJ_txt2nid() above) */
    ERR_clear_error();

    /*
     * Let us cleanup the ssl library when the module is unloaded
     */
    apr_pool_cleanup_register(pconf, NULL, ssl_cleanup_pre_config,
                                           apr_pool_cleanup_null);

    /* Register us to handle mod_log_config %c/%x variables */
    ssl_var_log_config_register(pconf);

    /* Register to handle mod_status status page generation */
    ssl_scache_status_register(pconf);