2 ** _ __ ___ ___ __| | ___ ___| | mod_ssl
3 ** | '_ ` _ \ / _ \ / _` | / __/ __| | Apache Interface to OpenSSL
4 ** | | | | | | (_) | (_| | \__ \__ \ | www.modssl.org
5 ** |_| |_| |_|\___/ \__,_|___|___/___/_| ftp.modssl.org
8 ** Initialization of Servers
11 /* ====================================================================
12 * The Apache Software License, Version 1.1
14 * Copyright (c) 2000-2002 The Apache Software Foundation. All rights
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions
21 * 1. Redistributions of source code must retain the above copyright
22 * notice, this list of conditions and the following disclaimer.
24 * 2. Redistributions in binary form must reproduce the above copyright
25 * notice, this list of conditions and the following disclaimer in
26 * the documentation and/or other materials provided with the
29 * 3. The end-user documentation included with the redistribution,
30 * if any, must include the following acknowledgment:
31 * "This product includes software developed by the
32 * Apache Software Foundation (http://www.apache.org/)."
33 * Alternately, this acknowledgment may appear in the software itself,
34 * if and wherever such third-party acknowledgments normally appear.
36 * 4. The names "Apache" and "Apache Software Foundation" must
37 * not be used to endorse or promote products derived from this
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39 * permission, please contact apache@apache.org.
41 * 5. Products derived from this software may not be called "Apache",
42 * nor may "Apache" appear in their name, without prior written
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47 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
48 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
49 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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51 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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55 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
57 * ====================================================================
64 /* _________________________________________________________________
66 ** Module Initialization
67 ** _________________________________________________________________
70 static char *ssl_add_version_component(apr_pool_t *p,
74 char *val = ssl_var_lookup(p, s, NULL, NULL, name);
77 ap_add_version_component(p, val);
83 static char *version_components[] = {
84 "SSL_VERSION_PRODUCT",
85 "SSL_VERSION_INTERFACE",
86 "SSL_VERSION_LIBRARY",
90 static void ssl_add_version_components(apr_pool_t *p,
93 char *vals[sizeof(version_components)/sizeof(char *)];
96 for (i=0; version_components[i]; i++) {
97 vals[i] = ssl_add_version_component(p, s,
98 version_components[i]);
101 ap_log_error(APLOG_MARK, APLOG_INFO, 0, s,
102 "Server: %s, Interface: %s, Library: %s",
103 AP_SERVER_BASEVERSION,
104 vals[1], /* SSL_VERSION_INTERFACE */
105 vals[2]); /* SSL_VERSION_LIBRARY */
110 * Initialize SSL library
112 static void ssl_init_SSLLibrary(server_rec *s)
114 ap_log_error(APLOG_MARK, APLOG_INFO, 0, s,
115 "Init: Initializing %s library", SSL_LIBRARY_NAME);
117 CRYPTO_malloc_init();
118 SSL_load_error_strings();
123 * Handle the Temporary RSA Keys and DH Params
126 #define MODSSL_TMP_KEY_FREE(mc, type, idx) \
127 if (mc->pTmpKeys[idx]) { \
128 type##_free((type *)mc->pTmpKeys[idx]); \
129 mc->pTmpKeys[idx] = NULL; \
132 #define MODSSL_TMP_KEYS_FREE(mc, type) \
133 MODSSL_TMP_KEY_FREE(mc, type, SSL_TMP_KEY_##type##_512); \
134 MODSSL_TMP_KEY_FREE(mc, type, SSL_TMP_KEY_##type##_1024)
136 static void ssl_tmp_keys_free(server_rec *s)
138 SSLModConfigRec *mc = myModConfig(s);
140 MODSSL_TMP_KEYS_FREE(mc, RSA);
141 MODSSL_TMP_KEYS_FREE(mc, DH);
144 static void ssl_tmp_key_init_rsa(server_rec *s,
147 SSLModConfigRec *mc = myModConfig(s);
149 if (!(mc->pTmpKeys[idx] =
150 RSA_generate_key(bits, RSA_F4, NULL, NULL)))
152 ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
153 "Init: Failed to generate temporary "
154 "%d bit RSA private key", bits);
160 static void ssl_tmp_key_init_dh(server_rec *s,
163 SSLModConfigRec *mc = myModConfig(s);
165 if (!(mc->pTmpKeys[idx] =
166 ssl_dh_GetTmpParam(bits)))
168 ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
169 "Init: Failed to generate temporary "
170 "%d bit DH parameters", bits);
175 #define MODSSL_TMP_KEY_INIT_RSA(s, bits) \
176 ssl_tmp_key_init_rsa(s, bits, SSL_TMP_KEY_RSA_##bits)
178 #define MODSSL_TMP_KEY_INIT_DH(s, bits) \
179 ssl_tmp_key_init_dh(s, bits, SSL_TMP_KEY_DH_##bits)
181 static void ssl_tmp_keys_init(server_rec *s)
183 ap_log_error(APLOG_MARK, APLOG_INFO, 0, s,
184 "Init: Generating temporary RSA private keys (512/1024 bits)");
186 MODSSL_TMP_KEY_INIT_RSA(s, 512);
187 MODSSL_TMP_KEY_INIT_RSA(s, 1024);
189 ap_log_error(APLOG_MARK, APLOG_INFO, 0, s,
190 "Init: Generating temporary DH parameters (512/1024 bits)");
192 MODSSL_TMP_KEY_INIT_DH(s, 512);
193 MODSSL_TMP_KEY_INIT_DH(s, 1024);
197 * Per-module initialization
199 int ssl_init_Module(apr_pool_t *p, apr_pool_t *plog,
201 server_rec *base_server)
203 SSLModConfigRec *mc = myModConfig(base_server);
208 * Let us cleanup on restarts and exists
210 apr_pool_cleanup_register(p, base_server,
212 apr_pool_cleanup_null);
215 * Any init round fixes the global config
217 ssl_config_global_create(base_server); /* just to avoid problems */
218 ssl_config_global_fix(mc);
221 * try to fix the configuration and open the dedicated SSL
222 * logfile as early as possible
224 for (s = base_server; s; s = s->next) {
236 * Create the server host:port string because we need it a lot
238 sc->vhost_id = ssl_util_vhostid(p, s);
239 sc->vhost_id_len = strlen(sc->vhost_id);
241 /* Fix up stuff that may not have been set */
242 if (sc->enabled == UNSET) {
246 if (sc->proxy_enabled == UNSET) {
247 sc->proxy_enabled = FALSE;
250 if (sc->session_cache_timeout == UNSET) {
251 sc->session_cache_timeout = SSL_SESSION_CACHE_TIMEOUT;
254 if (sc->server->pphrase_dialog_type == SSL_PPTYPE_UNSET) {
255 sc->server->pphrase_dialog_type = SSL_PPTYPE_BUILTIN;
260 ssl_init_SSLLibrary(base_server);
263 ssl_util_thread_setup(base_server, p);
267 * Seed the Pseudo Random Number Generator (PRNG)
268 * only need ptemp here; nothing inside allocated from the pool
269 * needs to live once we return from ssl_rand_seed().
271 ssl_rand_seed(base_server, ptemp, SSL_RSCTX_STARTUP, "Init: ");
274 * read server private keys/public certs into memory.
275 * decrypting any encrypted keys via configured SSLPassPhraseDialogs
276 * anything that needs to live longer than ptemp needs to also survive
277 * restarts, in which case they'll live inside s->process->pool.
279 ssl_pphrase_Handle(base_server, ptemp);
281 ssl_tmp_keys_init(base_server);
284 * SSL external crypto device ("engine") support
286 #ifdef SSL_EXPERIMENTAL_ENGINE
287 ssl_init_Engine(base_server, p);
291 * initialize the mutex handling
293 if (!ssl_mutex_init(base_server, p)) {
294 return HTTP_INTERNAL_SERVER_ERROR;
298 * initialize session caching
300 ssl_scache_init(base_server, p);
305 ap_log_error(APLOG_MARK, APLOG_INFO, 0, base_server,
306 "Init: Initializing (virtual) servers for SSL");
308 for (s = base_server; s; s = s->next) {
311 * Either now skip this server when SSL is disabled for
312 * it or give out some information about what we're
317 * Read the server certificate and key
319 ssl_init_ConfigureServer(s, p, ptemp, sc);
323 * Configuration consistency checks
325 ssl_init_CheckServers(base_server, ptemp);
328 * Announce mod_ssl and SSL library in HTTP Server field
329 * as ``mod_ssl/X.X.X OpenSSL/X.X.X''
331 ssl_add_version_components(p, base_server);
333 SSL_init_app_data2_idx(); /* for SSL_get_app_data2() at request time */
339 * Support for external a Crypto Device ("engine"), usually
340 * a hardware accellerator card for crypto operations.
342 #ifdef SSL_EXPERIMENTAL_ENGINE
343 void ssl_init_Engine(server_rec *s, apr_pool_t *p)
345 SSLModConfigRec *mc = myModConfig(s);
348 if (mc->szCryptoDevice) {
349 if (!(e = ENGINE_by_id(mc->szCryptoDevice))) {
350 ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
351 "Init: Failed to load Crypto Device API `%s'",
356 if (strEQ(mc->szCryptoDevice, "chil")) {
357 ENGINE_ctrl(e, ENGINE_CTRL_CHIL_SET_FORKCHECK, 1, 0, 0);
360 if (!ENGINE_set_default(e, ENGINE_METHOD_ALL)) {
361 ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
362 "Init: Failed to enable Crypto Device API `%s'",
372 static void ssl_init_server_check(server_rec *s,
378 * check for important parameters and the
379 * possibility that the user forgot to set them.
381 if (!mctx->pks->cert_files[0]) {
382 ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
383 "No SSL Certificate set [hint: SSLCertificateFile]");
388 * Check for problematic re-initializations
390 if (mctx->pks->certs[SSL_AIDX_RSA] ||
391 mctx->pks->certs[SSL_AIDX_DSA])
393 ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
394 "Illegal attempt to re-initialise SSL for server "
395 "(theoretically shouldn't happen!)");
400 static void ssl_init_ctx_protocol(server_rec *s,
406 SSL_METHOD *method = NULL;
408 int protocol = mctx->protocol;
411 * Create the new per-server SSL context
413 if (protocol == SSL_PROTOCOL_NONE) {
414 ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
415 "No SSL protocols available [hint: SSLProtocol]");
420 (protocol & SSL_PROTOCOL_SSLV2 ? "SSLv2, " : ""),
421 (protocol & SSL_PROTOCOL_SSLV3 ? "SSLv3, " : ""),
422 (protocol & SSL_PROTOCOL_TLSV1 ? "TLSv1, " : ""),
424 cp[strlen(cp)-2] = NUL;
426 ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
427 "Creating new SSL context (protocols: %s)", cp);
429 if (protocol == SSL_PROTOCOL_SSLV2) {
431 SSLv2_client_method() : /* proxy */
432 SSLv2_server_method(); /* server */
433 ctx = SSL_CTX_new(method); /* only SSLv2 is left */
437 SSLv23_client_method() : /* proxy */
438 SSLv23_server_method(); /* server */
439 ctx = SSL_CTX_new(method); /* be more flexible */
444 SSL_CTX_set_options(ctx, SSL_OP_ALL);
446 if (!(protocol & SSL_PROTOCOL_SSLV2)) {
447 SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2);
450 if (!(protocol & SSL_PROTOCOL_SSLV3)) {
451 SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv3);
454 if (!(protocol & SSL_PROTOCOL_TLSV1)) {
455 SSL_CTX_set_options(ctx, SSL_OP_NO_TLSv1);
458 SSL_CTX_set_app_data(ctx, s);
461 * Configure additional context ingredients
463 SSL_CTX_set_options(ctx, SSL_OP_SINGLE_DH_USE);
466 static void ssl_init_ctx_session_cache(server_rec *s,
471 SSL_CTX *ctx = mctx->ssl_ctx;
472 SSLModConfigRec *mc = myModConfig(s);
473 long cache_mode = SSL_SESS_CACHE_OFF;
475 if (mc->nSessionCacheMode != SSL_SCMODE_NONE) {
476 /* SSL_SESS_CACHE_NO_INTERNAL_LOOKUP will force OpenSSL
477 * to ignore process local-caching and
478 * to always get/set/delete sessions using mod_ssl's callbacks.
480 cache_mode = SSL_SESS_CACHE_SERVER|SSL_SESS_CACHE_NO_INTERNAL_LOOKUP;
483 SSL_CTX_set_session_cache_mode(ctx, cache_mode);
485 SSL_CTX_sess_set_new_cb(ctx, ssl_callback_NewSessionCacheEntry);
486 SSL_CTX_sess_set_get_cb(ctx, ssl_callback_GetSessionCacheEntry);
487 SSL_CTX_sess_set_remove_cb(ctx, ssl_callback_DelSessionCacheEntry);
490 static void ssl_init_ctx_callbacks(server_rec *s,
495 SSL_CTX *ctx = mctx->ssl_ctx;
497 SSL_CTX_set_tmp_rsa_callback(ctx, ssl_callback_TmpRSA);
498 SSL_CTX_set_tmp_dh_callback(ctx, ssl_callback_TmpDH);
500 if (s->loglevel >= APLOG_DEBUG) {
501 /* this callback only logs if LogLevel >= info */
502 SSL_CTX_set_info_callback(ctx, ssl_callback_LogTracingState);
506 static void ssl_init_ctx_verify(server_rec *s,
511 SSL_CTX *ctx = mctx->ssl_ctx;
513 int verify = SSL_VERIFY_NONE;
514 STACK_OF(X509_NAME) *ca_list;
516 if (mctx->auth.verify_mode == SSL_CVERIFY_UNSET) {
517 mctx->auth.verify_mode = SSL_CVERIFY_NONE;
520 if (mctx->auth.verify_depth == UNSET) {
521 mctx->auth.verify_depth = 1;
525 * Configure callbacks for SSL context
527 if (mctx->auth.verify_mode == SSL_CVERIFY_REQUIRE) {
528 verify |= SSL_VERIFY_PEER_STRICT;
531 if ((mctx->auth.verify_mode == SSL_CVERIFY_OPTIONAL) ||
532 (mctx->auth.verify_mode == SSL_CVERIFY_OPTIONAL_NO_CA))
534 verify |= SSL_VERIFY_PEER;
537 SSL_CTX_set_verify(ctx, verify, ssl_callback_SSLVerify);
540 * Configure Client Authentication details
542 if (mctx->auth.ca_cert_file || mctx->auth.ca_cert_path) {
543 ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
544 "Configuring client authentication");
546 if (!SSL_CTX_load_verify_locations(ctx,
547 mctx->auth.ca_cert_file,
548 mctx->auth.ca_cert_path))
550 ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
551 "Unable to configure verify locations "
552 "for client authentication");
553 ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
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 available "
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);
577 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, 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 = TRUE;
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);
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);
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);
802 mctx->pks->keys[idx] = pkey;
807 static void ssl_check_public_cert(server_rec *s,
820 * Some information about the certificate(s)
823 if (SSL_X509_isSGC(cert)) {
824 ap_log_error(APLOG_MARK, APLOG_INFO, 0, s,
825 "%s server certificate enables "
826 "Server Gated Cryptography (SGC)",
827 ssl_asn1_keystr(type));
830 if (SSL_X509_getBC(cert, &is_ca, &pathlen)) {
832 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
833 "%s server certificate is a CA certificate "
834 "(BasicConstraints: CA == TRUE !?)",
835 ssl_asn1_keystr(type));
839 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
840 "%s server certificate is not a leaf certificate "
841 "(BasicConstraints: pathlen == %d > 0 !?)",
842 ssl_asn1_keystr(type), pathlen);
846 if (SSL_X509_getCN(ptemp, cert, &cn)) {
847 int fnm_flags = FNM_PERIOD|FNM_CASE_BLIND;
849 if (apr_is_fnmatch(cn) &&
850 (apr_fnmatch(cn, s->server_hostname,
851 fnm_flags) == FNM_NOMATCH))
853 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
854 "%s server certificate wildcard CommonName (CN) `%s' "
855 "does NOT match server name!?",
856 ssl_asn1_keystr(type), cn);
858 else if (strNE(s->server_hostname, cn)) {
859 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
860 "%s server certificate CommonName (CN) `%s' "
861 "does NOT match server name!?",
862 ssl_asn1_keystr(type), cn);
867 static void ssl_init_server_certs(server_rec *s,
872 const char *rsa_id, *dsa_id;
873 const char *vhost_id = mctx->sc->vhost_id;
875 int have_rsa, have_dsa;
877 rsa_id = ssl_asn1_table_keyfmt(ptemp, vhost_id, SSL_AIDX_RSA);
878 dsa_id = ssl_asn1_table_keyfmt(ptemp, vhost_id, SSL_AIDX_DSA);
880 have_rsa = ssl_server_import_cert(s, mctx, rsa_id, SSL_AIDX_RSA);
881 have_dsa = ssl_server_import_cert(s, mctx, dsa_id, SSL_AIDX_DSA);
883 if (!(have_rsa || have_dsa)) {
884 ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
885 "Oops, no RSA or DSA server certificate found?!");
889 for (i = 0; i < SSL_AIDX_MAX; i++) {
890 ssl_check_public_cert(s, ptemp, mctx->pks->certs[i], i);
893 have_rsa = ssl_server_import_key(s, mctx, rsa_id, SSL_AIDX_RSA);
894 have_dsa = ssl_server_import_key(s, mctx, dsa_id, SSL_AIDX_DSA);
896 if (!(have_rsa || have_dsa)) {
897 ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
898 "Oops, no RSA or DSA server private key found?!");
903 static void ssl_init_proxy_certs(server_rec *s,
909 STACK_OF(X509_INFO) *sk;
910 modssl_pk_proxy_t *pkp = mctx->pkp;
912 SSL_CTX_set_client_cert_cb(mctx->ssl_ctx,
913 ssl_callback_proxy_cert);
915 if (!(pkp->cert_file || pkp->cert_path)) {
919 sk = sk_X509_INFO_new_null();
921 if (pkp->cert_file) {
922 SSL_X509_INFO_load_file(ptemp, sk, pkp->cert_file);
925 if (pkp->cert_path) {
926 SSL_X509_INFO_load_path(ptemp, sk, pkp->cert_path);
929 if ((ncerts = sk_X509_INFO_num(sk)) > 0) {
930 ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
931 "loaded %d client certs for SSL proxy",
937 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
938 "no client certs found for SSL proxy");
939 sk_X509_INFO_free(sk);
943 static void ssl_init_proxy_ctx(server_rec *s,
948 ssl_init_ctx(s, p, ptemp, sc->proxy);
950 ssl_init_proxy_certs(s, p, ptemp, sc->proxy);
953 static void ssl_init_server_ctx(server_rec *s,
958 ssl_init_server_check(s, p, ptemp, sc->server);
960 ssl_init_ctx(s, p, ptemp, sc->server);
962 ssl_init_server_certs(s, p, ptemp, sc->server);
966 * Configure a particular server
968 void ssl_init_ConfigureServer(server_rec *s,
974 ap_log_error(APLOG_MARK, APLOG_INFO, 0, s,
975 "Configuring server for SSL protocol");
976 ssl_init_server_ctx(s, p, ptemp, sc);
979 if (sc->proxy_enabled) {
980 ssl_init_proxy_ctx(s, p, ptemp, sc);
984 void ssl_init_CheckServers(server_rec *base_server, apr_pool_t *p)
992 BOOL conflict = FALSE;
995 * Give out warnings when a server has HTTPS configured
996 * for the HTTP port or vice versa
998 for (s = base_server; s; s = s->next) {
1001 if (sc->enabled && (s->port == DEFAULT_HTTP_PORT)) {
1002 ap_log_error(APLOG_MARK, APLOG_WARNING, 0,
1004 "Init: (%s) You configured HTTPS(%d) "
1005 "on the standard HTTP(%d) port!",
1006 ssl_util_vhostid(p, s),
1007 DEFAULT_HTTPS_PORT, DEFAULT_HTTP_PORT);
1010 if (!sc->enabled && (s->port == DEFAULT_HTTPS_PORT)) {
1011 ap_log_error(APLOG_MARK, APLOG_WARNING, 0,
1013 "Init: (%s) You configured HTTP(%d) "
1014 "on the standard HTTPS(%d) port!",
1015 ssl_util_vhostid(p, s),
1016 DEFAULT_HTTP_PORT, DEFAULT_HTTPS_PORT);
1021 * Give out warnings when more than one SSL-aware virtual server uses the
1022 * same IP:port. This doesn't work because mod_ssl then will always use
1023 * just the certificate/keys of one virtual host (which one cannot be said
1024 * easily - but that doesn't matter here).
1026 table = apr_hash_make(p);
1028 for (s = base_server; s; s = s->next) {
1029 sc = mySrvConfig(s);
1035 key = apr_psprintf(p, "%pA:%u",
1036 &s->addrs->host_addr, s->addrs->host_port);
1039 if ((ps = (server_rec *)apr_hash_get(table, key, klen))) {
1040 ap_log_error(APLOG_MARK, APLOG_WARNING, 0,
1042 "Init: SSL server IP/port conflict: "
1043 "%s (%s:%d) vs. %s (%s:%d)",
1044 ssl_util_vhostid(p, s),
1045 (s->defn_name ? s->defn_name : "unknown"),
1046 s->defn_line_number,
1047 ssl_util_vhostid(p, ps),
1048 (ps->defn_name ? ps->defn_name : "unknown"),
1049 ps->defn_line_number);
1054 apr_hash_set(table, key, klen, s);
1058 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, base_server,
1059 "Init: You should not use name-based "
1060 "virtual hosts in conjunction with SSL!!");
1064 static int ssl_init_FindCAList_X509NameCmp(X509_NAME **a, X509_NAME **b)
1066 return(X509_NAME_cmp(*a, *b));
1069 static void ssl_init_PushCAList(STACK_OF(X509_NAME) *ca_list,
1070 server_rec *s, const char *file)
1073 STACK_OF(X509_NAME) *sk;
1075 sk = (STACK_OF(X509_NAME) *)SSL_load_client_CA_file(file);
1081 for (n = 0; n < sk_X509_NAME_num(sk); n++) {
1083 X509_NAME *name = sk_X509_NAME_value(sk, n);
1085 ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
1086 "CA certificate: %s",
1087 X509_NAME_oneline(name, name_buf, sizeof(name_buf)));
1090 * note that SSL_load_client_CA_file() checks for duplicates,
1091 * but since we call it multiple times when reading a directory
1092 * we must also check for duplicates ourselves.
1095 if (sk_X509_NAME_find(ca_list, name) < 0) {
1096 /* this will be freed when ca_list is */
1097 sk_X509_NAME_push(ca_list, name);
1100 /* need to free this ourselves, else it will leak */
1101 X509_NAME_free(name);
1105 sk_X509_NAME_free(sk);
1108 STACK_OF(X509_NAME) *ssl_init_FindCAList(server_rec *s,
1110 const char *ca_file,
1111 const char *ca_path)
1113 STACK_OF(X509_NAME) *ca_list;
1116 * Start with a empty stack/list where new
1117 * entries get added in sorted order.
1119 ca_list = sk_X509_NAME_new(ssl_init_FindCAList_X509NameCmp);
1122 * Process CA certificate bundle file
1125 ssl_init_PushCAList(ca_list, s, ca_file);
1129 * Process CA certificate path files
1133 apr_finfo_t direntry;
1134 apr_int32_t finfo_flags = APR_FINFO_MIN|APR_FINFO_NAME;
1137 if ((rv = apr_dir_open(&dir, ca_path, ptemp)) != APR_SUCCESS) {
1138 ap_log_error(APLOG_MARK, APLOG_ERR, rv, s,
1139 "Failed to open SSLCACertificatePath `%s'",
1144 while ((apr_dir_read(&direntry, finfo_flags, dir)) == APR_SUCCESS) {
1146 if (direntry.filetype == APR_DIR) {
1147 continue; /* don't try to load directories */
1149 file = apr_pstrcat(ptemp, ca_path, "/", direntry.name, NULL);
1150 ssl_init_PushCAList(ca_list, s, file);
1159 sk_X509_NAME_set_cmp_func(ca_list, NULL);
1164 void ssl_init_Child(apr_pool_t *p, server_rec *s)
1166 SSLModConfigRec *mc = myModConfig(s);
1167 mc->pid = getpid(); /* only call getpid() once per-process */
1169 /* XXX: there should be an ap_srand() function */
1170 srand((unsigned int)time(NULL));
1172 /* open the mutex lockfile */
1173 ssl_mutex_reinit(s, p);
1176 #define MODSSL_CFG_ITEM_FREE(func, item) \
1182 static void ssl_init_ctx_cleanup(modssl_ctx_t *mctx)
1184 MODSSL_CFG_ITEM_FREE(X509_STORE_free, mctx->crl);
1186 MODSSL_CFG_ITEM_FREE(SSL_CTX_free, mctx->ssl_ctx);
1189 static void ssl_init_ctx_cleanup_proxy(modssl_ctx_t *mctx)
1191 ssl_init_ctx_cleanup(mctx);
1193 if (mctx->pkp->certs) {
1194 sk_X509_INFO_pop_free(mctx->pkp->certs, X509_INFO_free);
1198 static void ssl_init_ctx_cleanup_server(modssl_ctx_t *mctx)
1202 ssl_init_ctx_cleanup(mctx);
1204 for (i=0; i < SSL_AIDX_MAX; i++) {
1205 MODSSL_CFG_ITEM_FREE(X509_free,
1206 mctx->pks->certs[i]);
1208 MODSSL_CFG_ITEM_FREE(EVP_PKEY_free,
1209 mctx->pks->keys[i]);
1213 apr_status_t ssl_init_ModuleKill(void *data)
1215 SSLSrvConfigRec *sc;
1216 server_rec *base_server = (server_rec *)data;
1220 * Drop the session cache and mutex
1222 ssl_scache_kill(base_server);
1225 * Destroy the temporary keys and params
1227 ssl_tmp_keys_free(base_server);
1230 * Free the non-pool allocated structures
1231 * in the per-server configurations
1233 for (s = base_server; s; s = s->next) {
1234 sc = mySrvConfig(s);
1236 ssl_init_ctx_cleanup_proxy(sc->proxy);
1238 ssl_init_ctx_cleanup_server(sc->server);
1242 * Try to kill the internals of the SSL library.
1245 ERR_remove_state(0);