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/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* _ __ ___ ___ __| | ___ ___| | mod_ssl
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* | '_ ` _ \ / _ \ / _` | / __/ __| | Apache Interface to OpenSSL
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* | | | | | | (_) | (_| | \__ \__ \ |
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* |_| |_| |_|\___/ \__,_|___|___/___/_|
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* Initialization of Servers
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#include "ssl_private.h"
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/* _________________________________________________________________
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** Module Initialization
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** _________________________________________________________________
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static char *ssl_add_version_component(apr_pool_t *p,
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char *val = ssl_var_lookup(p, s, NULL, NULL, name);
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ap_add_version_component(p, val);
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static char *version_components[] = {
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"SSL_VERSION_PRODUCT",
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"SSL_VERSION_INTERFACE",
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"SSL_VERSION_LIBRARY",
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static void ssl_add_version_components(apr_pool_t *p,
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char *vals[sizeof(version_components)/sizeof(char *)];
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for (i=0; version_components[i]; i++) {
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vals[i] = ssl_add_version_component(p, s,
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version_components[i]);
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ap_log_error(APLOG_MARK, APLOG_INFO, 0, s,
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"Server: %s, Interface: %s, Library: %s",
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AP_SERVER_BASEVERSION,
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vals[1], /* SSL_VERSION_INTERFACE */
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vals[2]); /* SSL_VERSION_LIBRARY */
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* Handle the Temporary RSA Keys and DH Params
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#define MODSSL_TMP_KEY_FREE(mc, type, idx) \
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if (mc->pTmpKeys[idx]) { \
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type##_free((type *)mc->pTmpKeys[idx]); \
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mc->pTmpKeys[idx] = NULL; \
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#define MODSSL_TMP_KEYS_FREE(mc, type) \
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MODSSL_TMP_KEY_FREE(mc, type, SSL_TMP_KEY_##type##_512); \
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MODSSL_TMP_KEY_FREE(mc, type, SSL_TMP_KEY_##type##_1024)
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static void ssl_tmp_keys_free(server_rec *s)
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SSLModConfigRec *mc = myModConfig(s);
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MODSSL_TMP_KEYS_FREE(mc, RSA);
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MODSSL_TMP_KEYS_FREE(mc, DH);
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static int ssl_tmp_key_init_rsa(server_rec *s,
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SSLModConfigRec *mc = myModConfig(s);
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if (!(mc->pTmpKeys[idx] =
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RSA_generate_key(bits, RSA_F4, NULL, NULL)))
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ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
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"Init: Failed to generate temporary "
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"%d bit RSA private key", bits);
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static int ssl_tmp_key_init_dh(server_rec *s,
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SSLModConfigRec *mc = myModConfig(s);
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if (!(mc->pTmpKeys[idx] =
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ssl_dh_GetTmpParam(bits)))
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ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
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"Init: Failed to generate temporary "
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"%d bit DH parameters", bits);
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#define MODSSL_TMP_KEY_INIT_RSA(s, bits) \
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ssl_tmp_key_init_rsa(s, bits, SSL_TMP_KEY_RSA_##bits)
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#define MODSSL_TMP_KEY_INIT_DH(s, bits) \
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ssl_tmp_key_init_dh(s, bits, SSL_TMP_KEY_DH_##bits)
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static int ssl_tmp_keys_init(server_rec *s)
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ap_log_error(APLOG_MARK, APLOG_INFO, 0, s,
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"Init: Generating temporary RSA private keys (512/1024 bits)");
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if (MODSSL_TMP_KEY_INIT_RSA(s, 512) ||
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MODSSL_TMP_KEY_INIT_RSA(s, 1024)) {
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ap_log_error(APLOG_MARK, APLOG_INFO, 0, s,
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"Init: Generating temporary DH parameters (512/1024 bits)");
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if (MODSSL_TMP_KEY_INIT_DH(s, 512) ||
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MODSSL_TMP_KEY_INIT_DH(s, 1024)) {
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* Per-module initialization
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int ssl_init_Module(apr_pool_t *p, apr_pool_t *plog,
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server_rec *base_server)
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SSLModConfigRec *mc = myModConfig(base_server);
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/* We initialize mc->pid per-process in the child init,
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* but it should be initialized for startup before we
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* call ssl_rand_seed() below.
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* Let us cleanup on restarts and exists
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apr_pool_cleanup_register(p, base_server,
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apr_pool_cleanup_null);
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* Any init round fixes the global config
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ssl_config_global_create(base_server); /* just to avoid problems */
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ssl_config_global_fix(mc);
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* try to fix the configuration and open the dedicated SSL
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* logfile as early as possible
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for (s = base_server; s; s = s->next) {
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* Create the server host:port string because we need it a lot
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sc->vhost_id = ssl_util_vhostid(p, s);
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sc->vhost_id_len = strlen(sc->vhost_id);
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if (ap_get_server_protocol(s) &&
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strcmp("https", ap_get_server_protocol(s)) == 0) {
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sc->enabled = SSL_ENABLED_TRUE;
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/* If sc->enabled is UNSET, then SSL is optional on this vhost */
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/* Fix up stuff that may not have been set */
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if (sc->enabled == SSL_ENABLED_UNSET) {
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sc->enabled = SSL_ENABLED_FALSE;
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if (sc->proxy_enabled == UNSET) {
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sc->proxy_enabled = FALSE;
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if (sc->session_cache_timeout == UNSET) {
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sc->session_cache_timeout = SSL_SESSION_CACHE_TIMEOUT;
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if (sc->server->pphrase_dialog_type == SSL_PPTYPE_UNSET) {
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sc->server->pphrase_dialog_type = SSL_PPTYPE_BUILTIN;
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* SSL external crypto device ("engine") support
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#if defined(HAVE_OPENSSL_ENGINE_H) && defined(HAVE_ENGINE_INIT)
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ssl_init_Engine(base_server, p);
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ssl_util_thread_setup(p);
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ap_log_error(APLOG_MARK, APLOG_INFO, 0, s,
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"Init: Initialized %s library", SSL_LIBRARY_NAME);
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* Seed the Pseudo Random Number Generator (PRNG)
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* only need ptemp here; nothing inside allocated from the pool
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* needs to live once we return from ssl_rand_seed().
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ssl_rand_seed(base_server, ptemp, SSL_RSCTX_STARTUP, "Init: ");
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* read server private keys/public certs into memory.
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* decrypting any encrypted keys via configured SSLPassPhraseDialogs
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* anything that needs to live longer than ptemp needs to also survive
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* restarts, in which case they'll live inside s->process->pool.
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ssl_pphrase_Handle(base_server, ptemp);
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if (ssl_tmp_keys_init(base_server)) {
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* initialize the mutex handling
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if (!ssl_mutex_init(base_server, p)) {
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return HTTP_INTERNAL_SERVER_ERROR;
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* initialize session caching
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ssl_scache_init(base_server, p);
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ap_log_error(APLOG_MARK, APLOG_INFO, 0, base_server,
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"Init: Initializing (virtual) servers for SSL");
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for (s = base_server; s; s = s->next) {
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* Either now skip this server when SSL is disabled for
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* it or give out some information about what we're
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* Read the server certificate and key
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ssl_init_ConfigureServer(s, p, ptemp, sc);
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* Configuration consistency checks
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ssl_init_CheckServers(base_server, ptemp);
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* Announce mod_ssl and SSL library in HTTP Server field
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* as ``mod_ssl/X.X.X OpenSSL/X.X.X''
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ssl_add_version_components(p, base_server);
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SSL_init_app_data2_idx(); /* for SSL_get_app_data2() at request time */
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* Support for external a Crypto Device ("engine"), usually
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* a hardware accellerator card for crypto operations.
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#if defined(HAVE_OPENSSL_ENGINE_H) && defined(HAVE_ENGINE_INIT)
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void ssl_init_Engine(server_rec *s, apr_pool_t *p)
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SSLModConfigRec *mc = myModConfig(s);
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if (mc->szCryptoDevice) {
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if (!(e = ENGINE_by_id(mc->szCryptoDevice))) {
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ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
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"Init: Failed to load Crypto Device API `%s'",
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ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
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if (strEQ(mc->szCryptoDevice, "chil")) {
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ENGINE_ctrl(e, ENGINE_CTRL_CHIL_SET_FORKCHECK, 1, 0, 0);
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if (!ENGINE_set_default(e, ENGINE_METHOD_ALL)) {
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ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
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"Init: Failed to enable Crypto Device API `%s'",
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ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
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static void ssl_init_server_check(server_rec *s,
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* check for important parameters and the
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* possibility that the user forgot to set them.
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if (!mctx->pks->cert_files[0]) {
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ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
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"No SSL Certificate set [hint: SSLCertificateFile]");
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* Check for problematic re-initializations
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if (mctx->pks->certs[SSL_AIDX_RSA] ||
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mctx->pks->certs[SSL_AIDX_DSA])
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ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
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"Illegal attempt to re-initialise SSL for server "
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"(theoretically shouldn't happen!)");
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static void ssl_init_ctx_protocol(server_rec *s,
385
SSL_METHOD *method = NULL;
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int protocol = mctx->protocol;
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* Create the new per-server SSL context
392
if (protocol == SSL_PROTOCOL_NONE) {
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ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
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"No SSL protocols available [hint: SSLProtocol]");
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(protocol & SSL_PROTOCOL_SSLV2 ? "SSLv2, " : ""),
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(protocol & SSL_PROTOCOL_SSLV3 ? "SSLv3, " : ""),
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(protocol & SSL_PROTOCOL_TLSV1 ? "TLSv1, " : ""),
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cp[strlen(cp)-2] = NUL;
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ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
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"Creating new SSL context (protocols: %s)", cp);
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if (protocol == SSL_PROTOCOL_SSLV2) {
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SSLv2_client_method() : /* proxy */
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SSLv2_server_method(); /* server */
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ctx = SSL_CTX_new(method); /* only SSLv2 is left */
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SSLv23_client_method() : /* proxy */
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SSLv23_server_method(); /* server */
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ctx = SSL_CTX_new(method); /* be more flexible */
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SSL_CTX_set_options(ctx, SSL_OP_ALL);
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if (!(protocol & SSL_PROTOCOL_SSLV2)) {
426
SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2);
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if (!(protocol & SSL_PROTOCOL_SSLV3)) {
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SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv3);
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if (!(protocol & SSL_PROTOCOL_TLSV1)) {
434
SSL_CTX_set_options(ctx, SSL_OP_NO_TLSv1);
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#ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
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SSLSrvConfigRec *sc = mySrvConfig(s);
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if (sc->cipher_server_pref == TRUE) {
441
SSL_CTX_set_options(ctx, SSL_OP_CIPHER_SERVER_PREFERENCE);
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SSL_CTX_set_app_data(ctx, s);
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* Configure additional context ingredients
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SSL_CTX_set_options(ctx, SSL_OP_SINGLE_DH_USE);
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#ifdef SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION
455
* Disallow a session from being resumed during a renegotiation,
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* so that an acceptable cipher suite can be negotiated.
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SSL_CTX_set_options(ctx, SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION);
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static void ssl_init_ctx_session_cache(server_rec *s,
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SSL_CTX *ctx = mctx->ssl_ctx;
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SSLModConfigRec *mc = myModConfig(s);
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long cache_mode = SSL_SESS_CACHE_OFF;
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if (mc->nSessionCacheMode != SSL_SCMODE_NONE) {
471
/* SSL_SESS_CACHE_NO_INTERNAL will force OpenSSL
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* to ignore process local-caching and
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* to always get/set/delete sessions using mod_ssl's callbacks.
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cache_mode = SSL_SESS_CACHE_SERVER|SSL_SESS_CACHE_NO_INTERNAL;
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SSL_CTX_set_session_cache_mode(ctx, cache_mode);
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SSL_CTX_sess_set_new_cb(ctx, ssl_callback_NewSessionCacheEntry);
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SSL_CTX_sess_set_get_cb(ctx, ssl_callback_GetSessionCacheEntry);
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SSL_CTX_sess_set_remove_cb(ctx, ssl_callback_DelSessionCacheEntry);
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static void ssl_init_ctx_callbacks(server_rec *s,
490
SSL_CTX *ctx = mctx->ssl_ctx;
492
SSL_CTX_set_tmp_rsa_callback(ctx, ssl_callback_TmpRSA);
493
SSL_CTX_set_tmp_dh_callback(ctx, ssl_callback_TmpDH);
495
if (s->loglevel >= APLOG_DEBUG) {
496
/* this callback only logs if LogLevel >= info */
497
SSL_CTX_set_info_callback(ctx, ssl_callback_LogTracingState);
501
static void ssl_init_ctx_verify(server_rec *s,
506
SSL_CTX *ctx = mctx->ssl_ctx;
508
int verify = SSL_VERIFY_NONE;
509
STACK_OF(X509_NAME) *ca_list;
511
if (mctx->auth.verify_mode == SSL_CVERIFY_UNSET) {
512
mctx->auth.verify_mode = SSL_CVERIFY_NONE;
515
if (mctx->auth.verify_depth == UNSET) {
516
mctx->auth.verify_depth = 1;
520
* Configure callbacks for SSL context
522
if (mctx->auth.verify_mode == SSL_CVERIFY_REQUIRE) {
523
verify |= SSL_VERIFY_PEER_STRICT;
526
if ((mctx->auth.verify_mode == SSL_CVERIFY_OPTIONAL) ||
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(mctx->auth.verify_mode == SSL_CVERIFY_OPTIONAL_NO_CA))
529
verify |= SSL_VERIFY_PEER;
532
SSL_CTX_set_verify(ctx, verify, ssl_callback_SSLVerify);
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* Configure Client Authentication details
537
if (mctx->auth.ca_cert_file || mctx->auth.ca_cert_path) {
538
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
539
"Configuring client authentication");
541
if (!SSL_CTX_load_verify_locations(ctx,
542
MODSSL_PCHAR_CAST mctx->auth.ca_cert_file,
543
MODSSL_PCHAR_CAST mctx->auth.ca_cert_path))
545
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
546
"Unable to configure verify locations "
547
"for client authentication");
548
ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
552
if (mctx->pks && (mctx->pks->ca_name_file || mctx->pks->ca_name_path)) {
553
ca_list = ssl_init_FindCAList(s, ptemp,
554
mctx->pks->ca_name_file,
555
mctx->pks->ca_name_path);
557
ca_list = ssl_init_FindCAList(s, ptemp,
558
mctx->auth.ca_cert_file,
559
mctx->auth.ca_cert_path);
561
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
562
"Unable to determine list of acceptable "
563
"CA certificates for client authentication");
567
SSL_CTX_set_client_CA_list(ctx, (STACK *)ca_list);
571
* Give a warning when no CAs were configured but client authentication
572
* should take place. This cannot work.
574
if (mctx->auth.verify_mode == SSL_CVERIFY_REQUIRE) {
575
ca_list = (STACK_OF(X509_NAME) *)SSL_CTX_get_client_CA_list(ctx);
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if (sk_X509_NAME_num(ca_list) == 0) {
578
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
579
"Init: Oops, you want to request client "
580
"authentication, but no CAs are known for "
581
"verification!? [Hint: SSLCACertificate*]");
586
static void ssl_init_ctx_cipher_suite(server_rec *s,
591
SSL_CTX *ctx = mctx->ssl_ctx;
592
const char *suite = mctx->auth.cipher_suite;
595
* Configure SSL Cipher Suite
601
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
602
"Configuring permitted SSL ciphers [%s]",
605
if (!SSL_CTX_set_cipher_list(ctx, MODSSL_PCHAR_CAST suite)) {
606
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
607
"Unable to configure permitted SSL ciphers");
608
ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
613
static void ssl_init_ctx_crl(server_rec *s,
619
* Configure Certificate Revocation List (CRL) Details
622
if (!(mctx->crl_file || mctx->crl_path)) {
626
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
627
"Configuring certificate revocation facility");
630
SSL_X509_STORE_create((char *)mctx->crl_file,
631
(char *)mctx->crl_path);
634
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
635
"Unable to configure X.509 CRL storage "
636
"for certificate revocation");
637
ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
642
static void ssl_init_ctx_cert_chain(server_rec *s,
647
BOOL skip_first = FALSE;
649
const char *chain = mctx->cert_chain;
652
* Optionally configure extra server certificate chain certificates.
653
* This is usually done by OpenSSL automatically when one of the
654
* server cert issuers are found under SSLCACertificatePath or in
655
* SSLCACertificateFile. But because these are intended for client
656
* authentication it can conflict. For instance when you use a
657
* Global ID server certificate you've to send out the intermediate
658
* CA certificate, too. When you would just configure this with
659
* SSLCACertificateFile and also use client authentication mod_ssl
660
* would accept all clients also issued by this CA. Obviously this
661
* isn't what we want in this situation. So this feature here exists
662
* to allow one to explicity configure CA certificates which are
663
* used only for the server certificate chain.
669
for (i = 0; (i < SSL_AIDX_MAX) && mctx->pks->cert_files[i]; i++) {
670
if (strEQ(mctx->pks->cert_files[i], chain)) {
676
n = SSL_CTX_use_certificate_chain(mctx->ssl_ctx,
680
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
681
"Failed to configure CA certificate chain!");
685
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
686
"Configuring server certificate chain "
687
"(%d CA certificate%s)",
688
n, n == 1 ? "" : "s");
691
static void ssl_init_ctx(server_rec *s,
696
ssl_init_ctx_protocol(s, p, ptemp, mctx);
698
ssl_init_ctx_session_cache(s, p, ptemp, mctx);
700
ssl_init_ctx_callbacks(s, p, ptemp, mctx);
702
ssl_init_ctx_verify(s, p, ptemp, mctx);
704
ssl_init_ctx_cipher_suite(s, p, ptemp, mctx);
706
ssl_init_ctx_crl(s, p, ptemp, mctx);
709
/* XXX: proxy support? */
710
ssl_init_ctx_cert_chain(s, p, ptemp, mctx);
714
static int ssl_server_import_cert(server_rec *s,
719
SSLModConfigRec *mc = myModConfig(s);
721
MODSSL_D2I_X509_CONST unsigned char *ptr;
722
const char *type = ssl_asn1_keystr(idx);
725
if (!(asn1 = ssl_asn1_table_get(mc->tPublicCert, id))) {
729
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
730
"Configuring %s server certificate", type);
733
if (!(cert = d2i_X509(NULL, &ptr, asn1->nData))) {
734
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
735
"Unable to import %s server certificate", type);
736
ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
740
if (SSL_CTX_use_certificate(mctx->ssl_ctx, cert) <= 0) {
741
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
742
"Unable to configure %s server certificate", type);
743
ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
747
mctx->pks->certs[idx] = cert;
752
static int ssl_server_import_key(server_rec *s,
757
SSLModConfigRec *mc = myModConfig(s);
759
MODSSL_D2I_PrivateKey_CONST unsigned char *ptr;
760
const char *type = ssl_asn1_keystr(idx);
761
int pkey_type = (idx == SSL_AIDX_RSA) ? EVP_PKEY_RSA : EVP_PKEY_DSA;
764
if (!(asn1 = ssl_asn1_table_get(mc->tPrivateKey, id))) {
768
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
769
"Configuring %s server private key", type);
772
if (!(pkey = d2i_PrivateKey(pkey_type, NULL, &ptr, asn1->nData)))
774
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
775
"Unable to import %s server private key", type);
776
ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
780
if (SSL_CTX_use_PrivateKey(mctx->ssl_ctx, pkey) <= 0) {
781
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
782
"Unable to configure %s server private key", type);
783
ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
788
* XXX: wonder if this is still needed, this is old todo doc.
789
* (see http://www.psy.uq.edu.au/~ftp/Crypto/ssleay/TODO.html)
791
if ((pkey_type == EVP_PKEY_DSA) && mctx->pks->certs[idx]) {
792
EVP_PKEY *pubkey = X509_get_pubkey(mctx->pks->certs[idx]);
794
if (pubkey && EVP_PKEY_missing_parameters(pubkey)) {
795
EVP_PKEY_copy_parameters(pubkey, pkey);
796
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
797
"Copying DSA parameters from private key to certificate");
798
ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
799
EVP_PKEY_free(pubkey);
803
mctx->pks->keys[idx] = pkey;
808
static void ssl_check_public_cert(server_rec *s,
821
* Some information about the certificate(s)
824
if (SSL_X509_isSGC(cert)) {
825
ap_log_error(APLOG_MARK, APLOG_INFO, 0, s,
826
"%s server certificate enables "
827
"Server Gated Cryptography (SGC)",
828
ssl_asn1_keystr(type));
831
if (SSL_X509_getBC(cert, &is_ca, &pathlen)) {
833
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
834
"%s server certificate is a CA certificate "
835
"(BasicConstraints: CA == TRUE !?)",
836
ssl_asn1_keystr(type));
840
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
841
"%s server certificate is not a leaf certificate "
842
"(BasicConstraints: pathlen == %d > 0 !?)",
843
ssl_asn1_keystr(type), pathlen);
847
if (SSL_X509_getCN(ptemp, cert, &cn)) {
848
int fnm_flags = APR_FNM_PERIOD|APR_FNM_CASE_BLIND;
850
if (apr_fnmatch_test(cn) &&
851
(apr_fnmatch(cn, s->server_hostname,
852
fnm_flags) == APR_FNM_NOMATCH))
854
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
855
"%s server certificate wildcard CommonName (CN) `%s' "
856
"does NOT match server name!?",
857
ssl_asn1_keystr(type), cn);
859
else if (strNE(s->server_hostname, cn)) {
860
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
861
"%s server certificate CommonName (CN) `%s' "
862
"does NOT match server name!?",
863
ssl_asn1_keystr(type), cn);
868
static void ssl_init_server_certs(server_rec *s,
873
const char *rsa_id, *dsa_id;
874
const char *vhost_id = mctx->sc->vhost_id;
876
int have_rsa, have_dsa;
878
rsa_id = ssl_asn1_table_keyfmt(ptemp, vhost_id, SSL_AIDX_RSA);
879
dsa_id = ssl_asn1_table_keyfmt(ptemp, vhost_id, SSL_AIDX_DSA);
881
have_rsa = ssl_server_import_cert(s, mctx, rsa_id, SSL_AIDX_RSA);
882
have_dsa = ssl_server_import_cert(s, mctx, dsa_id, SSL_AIDX_DSA);
884
if (!(have_rsa || have_dsa)) {
885
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
886
"Oops, no RSA or DSA server certificate found "
887
"for '%s:%d'?!", s->server_hostname, s->port);
891
for (i = 0; i < SSL_AIDX_MAX; i++) {
892
ssl_check_public_cert(s, ptemp, mctx->pks->certs[i], i);
895
have_rsa = ssl_server_import_key(s, mctx, rsa_id, SSL_AIDX_RSA);
896
have_dsa = ssl_server_import_key(s, mctx, dsa_id, SSL_AIDX_DSA);
898
if (!(have_rsa || have_dsa)) {
899
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
900
"Oops, no RSA or DSA server private key found?!");
905
static void ssl_init_proxy_certs(server_rec *s,
911
STACK_OF(X509_INFO) *sk;
912
modssl_pk_proxy_t *pkp = mctx->pkp;
914
SSL_CTX_set_client_cert_cb(mctx->ssl_ctx,
915
ssl_callback_proxy_cert);
917
if (!(pkp->cert_file || pkp->cert_path)) {
921
sk = sk_X509_INFO_new_null();
923
if (pkp->cert_file) {
924
SSL_X509_INFO_load_file(ptemp, sk, pkp->cert_file);
927
if (pkp->cert_path) {
928
SSL_X509_INFO_load_path(ptemp, sk, pkp->cert_path);
931
if ((ncerts = sk_X509_INFO_num(sk)) <= 0) {
932
sk_X509_INFO_free(sk);
933
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
934
"no client certs found for SSL proxy");
938
/* Check that all client certs have got certificates and private
940
for (n = 0; n < ncerts; n++) {
941
X509_INFO *inf = sk_X509_INFO_value(sk, n);
943
if (!inf->x509 || !inf->x_pkey) {
944
sk_X509_INFO_free(sk);
945
ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, s,
946
"incomplete client cert configured for SSL proxy "
947
"(missing or encrypted private key?)");
953
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
954
"loaded %d client certs for SSL proxy",
959
static void ssl_init_proxy_ctx(server_rec *s,
964
ssl_init_ctx(s, p, ptemp, sc->proxy);
966
ssl_init_proxy_certs(s, p, ptemp, sc->proxy);
969
static void ssl_init_server_ctx(server_rec *s,
974
ssl_init_server_check(s, p, ptemp, sc->server);
976
ssl_init_ctx(s, p, ptemp, sc->server);
978
ssl_init_server_certs(s, p, ptemp, sc->server);
982
* Configure a particular server
984
void ssl_init_ConfigureServer(server_rec *s,
989
/* Initialize the server if SSL is enabled or optional.
991
if ((sc->enabled == SSL_ENABLED_TRUE) || (sc->enabled == SSL_ENABLED_OPTIONAL)) {
992
ap_log_error(APLOG_MARK, APLOG_INFO, 0, s,
993
"Configuring server for SSL protocol");
994
ssl_init_server_ctx(s, p, ptemp, sc);
997
if (sc->proxy_enabled) {
998
ssl_init_proxy_ctx(s, p, ptemp, sc);
1002
void ssl_init_CheckServers(server_rec *base_server, apr_pool_t *p)
1005
SSLSrvConfigRec *sc;
1010
BOOL conflict = FALSE;
1013
* Give out warnings when a server has HTTPS configured
1014
* for the HTTP port or vice versa
1016
for (s = base_server; s; s = s->next) {
1017
sc = mySrvConfig(s);
1019
if ((sc->enabled == SSL_ENABLED_TRUE) && (s->port == DEFAULT_HTTP_PORT)) {
1020
ap_log_error(APLOG_MARK, APLOG_WARNING, 0,
1022
"Init: (%s) You configured HTTPS(%d) "
1023
"on the standard HTTP(%d) port!",
1024
ssl_util_vhostid(p, s),
1025
DEFAULT_HTTPS_PORT, DEFAULT_HTTP_PORT);
1028
if ((sc->enabled == SSL_ENABLED_FALSE) && (s->port == DEFAULT_HTTPS_PORT)) {
1029
ap_log_error(APLOG_MARK, APLOG_WARNING, 0,
1031
"Init: (%s) You configured HTTP(%d) "
1032
"on the standard HTTPS(%d) port!",
1033
ssl_util_vhostid(p, s),
1034
DEFAULT_HTTP_PORT, DEFAULT_HTTPS_PORT);
1039
* Give out warnings when more than one SSL-aware virtual server uses the
1040
* same IP:port. This doesn't work because mod_ssl then will always use
1041
* just the certificate/keys of one virtual host (which one cannot be said
1042
* easily - but that doesn't matter here).
1044
table = apr_hash_make(p);
1046
for (s = base_server; s; s = s->next) {
1049
sc = mySrvConfig(s);
1051
if (!((sc->enabled == SSL_ENABLED_TRUE) && s->addrs)) {
1055
apr_sockaddr_ip_get(&addr, s->addrs->host_addr);
1056
key = apr_psprintf(p, "%s:%u", addr, s->addrs->host_port);
1059
if ((ps = (server_rec *)apr_hash_get(table, key, klen))) {
1060
ap_log_error(APLOG_MARK, APLOG_WARNING, 0,
1062
"Init: SSL server IP/port conflict: "
1063
"%s (%s:%d) vs. %s (%s:%d)",
1064
ssl_util_vhostid(p, s),
1065
(s->defn_name ? s->defn_name : "unknown"),
1066
s->defn_line_number,
1067
ssl_util_vhostid(p, ps),
1068
(ps->defn_name ? ps->defn_name : "unknown"),
1069
ps->defn_line_number);
1074
apr_hash_set(table, key, klen, s);
1078
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, base_server,
1079
"Init: You should not use name-based "
1080
"virtual hosts in conjunction with SSL!!");
1084
#ifdef SSLC_VERSION_NUMBER
1085
static int ssl_init_FindCAList_X509NameCmp(char **a, char **b)
1087
return(X509_NAME_cmp((void*)*a, (void*)*b));
1090
static int ssl_init_FindCAList_X509NameCmp(X509_NAME **a, X509_NAME **b)
1092
return(X509_NAME_cmp(*a, *b));
1096
static void ssl_init_PushCAList(STACK_OF(X509_NAME) *ca_list,
1097
server_rec *s, const char *file)
1100
STACK_OF(X509_NAME) *sk;
1102
sk = (STACK_OF(X509_NAME) *)
1103
SSL_load_client_CA_file(MODSSL_PCHAR_CAST file);
1109
for (n = 0; n < sk_X509_NAME_num(sk); n++) {
1111
X509_NAME *name = sk_X509_NAME_value(sk, n);
1113
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
1114
"CA certificate: %s",
1115
X509_NAME_oneline(name, name_buf, sizeof(name_buf)));
1118
* note that SSL_load_client_CA_file() checks for duplicates,
1119
* but since we call it multiple times when reading a directory
1120
* we must also check for duplicates ourselves.
1123
if (sk_X509_NAME_find(ca_list, name) < 0) {
1124
/* this will be freed when ca_list is */
1125
sk_X509_NAME_push(ca_list, name);
1128
/* need to free this ourselves, else it will leak */
1129
X509_NAME_free(name);
1133
sk_X509_NAME_free(sk);
1136
STACK_OF(X509_NAME) *ssl_init_FindCAList(server_rec *s,
1138
const char *ca_file,
1139
const char *ca_path)
1141
STACK_OF(X509_NAME) *ca_list;
1144
* Start with a empty stack/list where new
1145
* entries get added in sorted order.
1147
ca_list = sk_X509_NAME_new(ssl_init_FindCAList_X509NameCmp);
1150
* Process CA certificate bundle file
1153
ssl_init_PushCAList(ca_list, s, ca_file);
1157
* Process CA certificate path files
1161
apr_finfo_t direntry;
1162
apr_int32_t finfo_flags = APR_FINFO_TYPE|APR_FINFO_NAME;
1165
if ((rv = apr_dir_open(&dir, ca_path, ptemp)) != APR_SUCCESS) {
1166
ap_log_error(APLOG_MARK, APLOG_ERR, rv, s,
1167
"Failed to open Certificate Path `%s'",
1172
while ((apr_dir_read(&direntry, finfo_flags, dir)) == APR_SUCCESS) {
1174
if (direntry.filetype == APR_DIR) {
1175
continue; /* don't try to load directories */
1177
file = apr_pstrcat(ptemp, ca_path, "/", direntry.name, NULL);
1178
ssl_init_PushCAList(ca_list, s, file);
1187
sk_X509_NAME_set_cmp_func(ca_list, NULL);
1192
void ssl_init_Child(apr_pool_t *p, server_rec *s)
1194
SSLModConfigRec *mc = myModConfig(s);
1195
mc->pid = getpid(); /* only call getpid() once per-process */
1197
/* XXX: there should be an ap_srand() function */
1198
srand((unsigned int)time(NULL));
1200
/* open the mutex lockfile */
1201
ssl_mutex_reinit(s, p);
1204
#define MODSSL_CFG_ITEM_FREE(func, item) \
1210
static void ssl_init_ctx_cleanup(modssl_ctx_t *mctx)
1212
MODSSL_CFG_ITEM_FREE(X509_STORE_free, mctx->crl);
1214
MODSSL_CFG_ITEM_FREE(SSL_CTX_free, mctx->ssl_ctx);
1217
static void ssl_init_ctx_cleanup_proxy(modssl_ctx_t *mctx)
1219
ssl_init_ctx_cleanup(mctx);
1221
if (mctx->pkp->certs) {
1222
sk_X509_INFO_pop_free(mctx->pkp->certs, X509_INFO_free);
1226
static void ssl_init_ctx_cleanup_server(modssl_ctx_t *mctx)
1230
ssl_init_ctx_cleanup(mctx);
1232
for (i=0; i < SSL_AIDX_MAX; i++) {
1233
MODSSL_CFG_ITEM_FREE(X509_free,
1234
mctx->pks->certs[i]);
1236
MODSSL_CFG_ITEM_FREE(EVP_PKEY_free,
1237
mctx->pks->keys[i]);
1241
apr_status_t ssl_init_ModuleKill(void *data)
1243
SSLSrvConfigRec *sc;
1244
server_rec *base_server = (server_rec *)data;
1248
* Drop the session cache and mutex
1250
ssl_scache_kill(base_server);
1253
* Destroy the temporary keys and params
1255
ssl_tmp_keys_free(base_server);
1258
* Free the non-pool allocated structures
1259
* in the per-server configurations
1261
for (s = base_server; s; s = s->next) {
1262
sc = mySrvConfig(s);
1264
ssl_init_ctx_cleanup_proxy(sc->proxy);
1266
ssl_init_ctx_cleanup_server(sc->server);