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
38 * software without prior written permission. For written
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
43 * permission of the Apache Software Foundation.
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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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53 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
54 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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 ssl_log(s, SSL_LOG_INFO,
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 ssl_log(s, SSL_LOG_INFO,
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 ssl_log(s, SSL_LOG_ERROR,
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 ssl_log(s, SSL_LOG_ERROR,
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 ssl_log(s, SSL_LOG_INFO,
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 ssl_log(s, SSL_LOG_INFO,
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) {
232 * Create the server host:port string because we need it a lot
234 sc->vhost_id = ssl_util_vhostid(p, s);
235 sc->vhost_id_len = strlen(sc->vhost_id);
237 /* Fix up stuff that may not have been set */
238 if (sc->enabled == UNSET) {
242 if (sc->session_cache_timeout == UNSET) {
243 sc->session_cache_timeout = SSL_SESSION_CACHE_TIMEOUT;
246 if (sc->server->pphrase_dialog_type == SSL_PPTYPE_UNSET) {
247 sc->server->pphrase_dialog_type = SSL_PPTYPE_BUILTIN;
250 /* Open the dedicated SSL logfile */
251 ssl_log_open(base_server, s, p);
254 ssl_init_SSLLibrary(base_server);
257 ssl_util_thread_setup(base_server, p);
261 * Seed the Pseudo Random Number Generator (PRNG)
262 * only need ptemp here; nothing inside allocated from the pool
263 * needs to live once we return from ssl_rand_seed().
265 ssl_rand_seed(base_server, ptemp, SSL_RSCTX_STARTUP, "Init: ");
268 * read server private keys/public certs into memory.
269 * decrypting any encrypted keys via configured SSLPassPhraseDialogs
270 * anything that needs to live longer than ptemp needs to also survive
271 * restarts, in which case they'll live inside s->process->pool.
273 ssl_pphrase_Handle(base_server, ptemp);
275 ssl_tmp_keys_init(base_server);
278 * SSL external crypto device ("engine") support
280 #ifdef SSL_EXPERIMENTAL_ENGINE
281 ssl_init_Engine(base_server, p);
285 * initialize the mutex handling
287 if (!ssl_mutex_init(base_server, p)) {
288 return HTTP_INTERNAL_SERVER_ERROR;
292 * initialize session caching
294 ssl_scache_init(base_server, p);
299 ssl_log(base_server, SSL_LOG_INFO,
300 "Init: Initializing (virtual) servers for SSL");
302 for (s = base_server; s; s = s->next) {
305 * Either now skip this server when SSL is disabled for
306 * it or give out some information about what we're
313 ssl_log(s, SSL_LOG_INFO|SSL_INIT,
314 "Configuring server for SSL protocol");
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 ssl_log(s, SSL_LOG_ERROR,
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 ssl_log(s, SSL_LOG_ERROR,
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 ssl_log(s, SSL_LOG_ERROR|SSL_INIT,
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 ssl_log(s, SSL_LOG_ERROR|SSL_INIT,
394 "Illegal attempt to re-initialise SSL for server "
395 "(theoretically shouldn't happen!)");
400 static void ssl_init_ctx(server_rec *s,
407 int protocol = mctx->protocol;
410 * Create the new per-server SSL context
412 if (protocol == SSL_PROTOCOL_NONE) {
413 ssl_log(s, SSL_LOG_ERROR|SSL_INIT,
414 "No SSL protocols available [hint: SSLProtocol]");
419 (protocol & SSL_PROTOCOL_SSLV2 ? "SSLv2, " : ""),
420 (protocol & SSL_PROTOCOL_SSLV3 ? "SSLv3, " : ""),
421 (protocol & SSL_PROTOCOL_TLSV1 ? "TLSv1, " : ""),
423 cp[strlen(cp)-2] = NUL;
425 ssl_log(s, SSL_LOG_TRACE|SSL_INIT,
426 "Creating new SSL context (protocols: %s)", cp);
428 if (protocol == SSL_PROTOCOL_SSLV2) {
429 ctx = SSL_CTX_new(SSLv2_server_method()); /* only SSLv2 is left */
432 ctx = SSL_CTX_new(SSLv23_server_method()); /* be more flexible */
437 SSL_CTX_set_options(ctx, SSL_OP_ALL);
439 if (!(protocol & SSL_PROTOCOL_SSLV2)) {
440 SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2);
443 if (!(protocol & SSL_PROTOCOL_SSLV3)) {
444 SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv3);
447 if (!(protocol & SSL_PROTOCOL_TLSV1)) {
448 SSL_CTX_set_options(ctx, SSL_OP_NO_TLSv1);
451 SSL_CTX_set_app_data(ctx, s);
454 * Configure additional context ingredients
456 SSL_CTX_set_options(ctx, SSL_OP_SINGLE_DH_USE);
459 static void ssl_init_ctx_session_cache(server_rec *s,
464 SSL_CTX *ctx = mctx->ssl_ctx;
465 SSLModConfigRec *mc = myModConfig(s);
466 long cache_mode = SSL_SESS_CACHE_OFF;
468 if (mc->nSessionCacheMode != SSL_SCMODE_NONE) {
469 /* SSL_SESS_CACHE_NO_INTERNAL_LOOKUP will force OpenSSL
470 * to ignore process local-caching and
471 * to always get/set/delete sessions using mod_ssl's callbacks.
473 cache_mode = SSL_SESS_CACHE_SERVER|SSL_SESS_CACHE_NO_INTERNAL_LOOKUP;
476 SSL_CTX_set_session_cache_mode(ctx, cache_mode);
478 SSL_CTX_sess_set_new_cb(ctx, ssl_callback_NewSessionCacheEntry);
479 SSL_CTX_sess_set_get_cb(ctx, ssl_callback_GetSessionCacheEntry);
480 SSL_CTX_sess_set_remove_cb(ctx, ssl_callback_DelSessionCacheEntry);
483 static void ssl_init_ctx_callbacks(server_rec *s,
488 SSL_CTX *ctx = mctx->ssl_ctx;
490 SSL_CTX_set_tmp_rsa_callback(ctx, ssl_callback_TmpRSA);
491 SSL_CTX_set_tmp_dh_callback(ctx, ssl_callback_TmpDH);
493 if (mctx->sc->log_level >= SSL_LOG_INFO) {
494 /* this callback only logs if SSLLogLevel >= info */
495 SSL_CTX_set_info_callback(ctx, ssl_callback_LogTracingState);
499 static void ssl_init_ctx_verify(server_rec *s,
504 SSL_CTX *ctx = mctx->ssl_ctx;
506 int verify = SSL_VERIFY_NONE;
507 STACK_OF(X509_NAME) *ca_list;
509 if (mctx->auth.verify_mode == SSL_CVERIFY_UNSET) {
510 mctx->auth.verify_mode = SSL_CVERIFY_NONE;
513 if (mctx->auth.verify_depth == UNSET) {
514 mctx->auth.verify_depth = 1;
518 * Configure callbacks for SSL context
520 if (mctx->auth.verify_mode == SSL_CVERIFY_REQUIRE) {
521 verify |= SSL_VERIFY_PEER_STRICT;
524 if ((mctx->auth.verify_mode == SSL_CVERIFY_OPTIONAL) ||
525 (mctx->auth.verify_mode == SSL_CVERIFY_OPTIONAL_NO_CA))
527 verify |= SSL_VERIFY_PEER;
530 SSL_CTX_set_verify(ctx, verify, ssl_callback_SSLVerify);
533 * Configure Client Authentication details
535 if (mctx->auth.ca_cert_file || mctx->auth.ca_cert_path) {
536 ssl_log(s, SSL_LOG_TRACE|SSL_INIT,
537 "Configuring client authentication");
539 if (!SSL_CTX_load_verify_locations(ctx,
540 mctx->auth.ca_cert_file,
541 mctx->auth.ca_cert_path))
543 ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR|SSL_INIT,
544 "Unable to configure verify locations "
545 "for client authentication");
549 ca_list = ssl_init_FindCAList(s, ptemp,
550 mctx->auth.ca_cert_file,
551 mctx->auth.ca_cert_path);
553 ssl_log(s, SSL_LOG_ERROR|SSL_INIT,
554 "Unable to determine list of available "
555 "CA certificates for client authentication");
559 SSL_CTX_set_client_CA_list(ctx, (STACK *)ca_list);
563 * Give a warning when no CAs were configured but client authentication
564 * should take place. This cannot work.
566 if (mctx->auth.verify_mode == SSL_CVERIFY_REQUIRE) {
567 ca_list = (STACK_OF(X509_NAME) *)SSL_CTX_get_client_CA_list(ctx);
569 if (sk_X509_NAME_num(ca_list) == 0) {
570 ssl_log(s, SSL_LOG_WARN,
571 "Init: Oops, you want to request client authentication, "
572 "but no CAs are known for verification!? "
573 "[Hint: SSLCACertificate*]");
578 static void ssl_init_ctx_cipher_suite(server_rec *s,
583 SSL_CTX *ctx = mctx->ssl_ctx;
584 const char *suite = mctx->auth.cipher_suite;
587 * Configure SSL Cipher Suite
593 ssl_log(s, SSL_LOG_TRACE|SSL_INIT,
594 "Configuring permitted SSL ciphers [%s]",
597 if (!SSL_CTX_set_cipher_list(ctx, suite)) {
598 ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR|SSL_INIT,
599 "Unable to configure permitted SSL ciphers");
604 static void ssl_init_ctx_crl(server_rec *s,
610 * Configure Certificate Revocation List (CRL) Details
613 if (!(mctx->crl_file || mctx->crl_path)) {
617 ssl_log(s, SSL_LOG_TRACE|SSL_INIT,
618 "Configuring certificate revocation facility");
621 SSL_X509_STORE_create((char *)mctx->crl_file,
622 (char *)mctx->crl_path);
625 ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR|SSL_INIT,
626 "Unable to configure X.509 CRL storage "
627 "for certificate revocation");
632 static void ssl_init_ctx_cert_chain(server_rec *s,
637 BOOL skip_first = TRUE;
639 const char *chain = mctx->cert_chain;
642 * Optionally configure extra server certificate chain certificates.
643 * This is usually done by OpenSSL automatically when one of the
644 * server cert issuers are found under SSLCACertificatePath or in
645 * SSLCACertificateFile. But because these are intended for client
646 * authentication it can conflict. For instance when you use a
647 * Global ID server certificate you've to send out the intermediate
648 * CA certificate, too. When you would just configure this with
649 * SSLCACertificateFile and also use client authentication mod_ssl
650 * would accept all clients also issued by this CA. Obviously this
651 * isn't what we want in this situation. So this feature here exists
652 * to allow one to explicity configure CA certificates which are
653 * used only for the server certificate chain.
659 for (i = 0; (i < SSL_AIDX_MAX) && mctx->pks->cert_files[i]; i++) {
660 if (strEQ(mctx->pks->cert_files[i], chain)) {
666 n = SSL_CTX_use_certificate_chain(mctx->ssl_ctx,
670 ssl_log(s, SSL_LOG_ERROR|SSL_INIT,
671 "Failed to configure CA certificate chain!");
675 ssl_log(s, SSL_LOG_TRACE|SSL_INIT,
676 "Configuring server certificate chain "
677 "(%d CA certificate%s)",
678 n, n == 1 ? "" : "s");
681 static int ssl_server_import_cert(server_rec *s,
686 SSLModConfigRec *mc = myModConfig(s);
689 const char *type = ssl_asn1_keystr(idx);
692 if (!(asn1 = ssl_asn1_table_get(mc->tPublicCert, id))) {
696 ssl_log(s, SSL_LOG_TRACE|SSL_INIT,
697 "Configuring %s server certificate", type);
700 if (!(cert = d2i_X509(NULL, &ptr, asn1->nData))) {
701 ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR|SSL_INIT,
702 "Unable to import %s server certificate", type);
706 if (SSL_CTX_use_certificate(mctx->ssl_ctx, cert) <= 0) {
707 ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR|SSL_INIT,
708 "Unable to configure %s server certificate", type);
712 mctx->pks->certs[idx] = cert;
717 static int ssl_server_import_key(server_rec *s,
722 SSLModConfigRec *mc = myModConfig(s);
725 const char *type = ssl_asn1_keystr(idx);
726 int pkey_type = (idx == SSL_AIDX_RSA) ? EVP_PKEY_RSA : EVP_PKEY_DSA;
729 if (!(asn1 = ssl_asn1_table_get(mc->tPrivateKey, id))) {
733 ssl_log(s, SSL_LOG_TRACE|SSL_INIT,
734 "Configuring %s server private key", type);
737 if (!(pkey = d2i_PrivateKey(pkey_type, NULL, &ptr, asn1->nData)))
739 ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR|SSL_INIT,
740 "Unable to import %s server private key", type);
744 if (SSL_CTX_use_PrivateKey(mctx->ssl_ctx, pkey) <= 0) {
745 ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR|SSL_INIT,
746 "Unable to configure %s server private key", type);
751 * XXX: wonder if this is still needed, this is old todo doc.
752 * (see http://www.psy.uq.edu.au/~ftp/Crypto/ssleay/TODO.html)
754 if ((pkey_type == EVP_PKEY_DSA) && mctx->pks->certs[idx]) {
755 EVP_PKEY *pubkey = X509_get_pubkey(mctx->pks->certs[idx]);
757 if (pubkey && EVP_PKEY_missing_parameters(pubkey)) {
758 EVP_PKEY_copy_parameters(pubkey, pkey);
759 ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR|SSL_INIT,
760 "Copying DSA parameters from private key to certificate");
764 mctx->pks->keys[idx] = pkey;
769 static void ssl_check_public_cert(server_rec *s,
782 * Some information about the certificate(s)
785 if (SSL_X509_isSGC(cert)) {
786 ssl_log(s, SSL_LOG_INFO|SSL_INIT,
787 "%s server certificate enables "
788 "Server Gated Cryptography (SGC)",
789 ssl_asn1_keystr(type));
792 if (SSL_X509_getBC(cert, &is_ca, &pathlen)) {
794 ssl_log(s, SSL_LOG_WARN|SSL_INIT,
795 "%s server certificate is a CA certificate "
796 "(BasicConstraints: CA == TRUE !?)",
797 ssl_asn1_keystr(type));
801 ssl_log(s, SSL_LOG_WARN|SSL_INIT,
802 "%s server certificate is not a leaf certificate "
803 "(BasicConstraints: pathlen == %d > 0 !?)",
804 ssl_asn1_keystr(type), pathlen);
808 if (SSL_X509_getCN(ptemp, cert, &cn)) {
809 int fnm_flags = FNM_PERIOD|FNM_CASE_BLIND;
811 if (apr_is_fnmatch(cn) &&
812 (apr_fnmatch(cn, s->server_hostname,
813 fnm_flags) == FNM_NOMATCH))
815 ssl_log(s, SSL_LOG_WARN|SSL_INIT,
816 "%s server certificate wildcard CommonName (CN) `%s' "
817 "does NOT match server name!?",
818 ssl_asn1_keystr(type), cn);
820 else if (strNE(s->server_hostname, cn)) {
821 ssl_log(s, SSL_LOG_WARN|SSL_INIT,
822 "%s server certificate CommonName (CN) `%s' "
823 "does NOT match server name!?",
824 ssl_asn1_keystr(type), cn);
829 static void ssl_init_server_certs(server_rec *s,
834 const char *rsa_id, *dsa_id;
835 const char *vhost_id = mctx->sc->vhost_id;
837 int have_rsa, have_dsa;
839 rsa_id = ssl_asn1_table_keyfmt(ptemp, vhost_id, SSL_AIDX_RSA);
840 dsa_id = ssl_asn1_table_keyfmt(ptemp, vhost_id, SSL_AIDX_DSA);
842 have_rsa = ssl_server_import_cert(s, mctx, rsa_id, SSL_AIDX_RSA);
843 have_dsa = ssl_server_import_cert(s, mctx, dsa_id, SSL_AIDX_DSA);
845 if (!(have_rsa || have_dsa)) {
846 ssl_log(s, SSL_LOG_ERROR|SSL_INIT,
847 "Oops, no RSA or DSA server certificate found?!");
851 for (i = 0; i < SSL_AIDX_MAX; i++) {
852 ssl_check_public_cert(s, ptemp, mctx->pks->certs[i], i);
855 have_rsa = ssl_server_import_key(s, mctx, rsa_id, SSL_AIDX_RSA);
856 have_dsa = ssl_server_import_key(s, mctx, dsa_id, SSL_AIDX_DSA);
858 if (!(have_rsa || have_dsa)) {
859 ssl_log(s, SSL_LOG_ERROR|SSL_INIT,
860 "Oops, no RSA or DSA server private key found?!");
866 * Configure a particular server
868 void ssl_init_ConfigureServer(server_rec *s,
873 ssl_init_server_check(s, p, ptemp, sc->server);
875 ssl_init_ctx(s, p, ptemp, sc->server);
877 ssl_init_ctx_session_cache(s, p, ptemp, sc->server);
879 ssl_init_ctx_callbacks(s, p, ptemp, sc->server);
881 ssl_init_ctx_verify(s, p, ptemp, sc->server);
883 ssl_init_ctx_cipher_suite(s, p, ptemp, sc->server);
885 ssl_init_ctx_crl(s, p, ptemp, sc->server);
887 ssl_init_ctx_cert_chain(s, p, ptemp, sc->server);
889 ssl_init_server_certs(s, p, ptemp, sc->server);
892 void ssl_init_CheckServers(server_rec *base_server, apr_pool_t *p)
900 BOOL conflict = FALSE;
903 * Give out warnings when a server has HTTPS configured
904 * for the HTTP port or vice versa
906 for (s = base_server; s; s = s->next) {
909 if (sc->enabled && (s->port == DEFAULT_HTTP_PORT)) {
910 ssl_log(base_server, SSL_LOG_WARN,
911 "Init: (%s) You configured HTTPS(%d) "
912 "on the standard HTTP(%d) port!",
913 ssl_util_vhostid(p, s),
914 DEFAULT_HTTPS_PORT, DEFAULT_HTTP_PORT);
917 if (!sc->enabled && (s->port == DEFAULT_HTTPS_PORT)) {
918 ssl_log(base_server, SSL_LOG_WARN,
919 "Init: (%s) You configured HTTP(%d) "
920 "on the standard HTTPS(%d) port!",
921 ssl_util_vhostid(p, s),
922 DEFAULT_HTTP_PORT, DEFAULT_HTTPS_PORT);
927 * Give out warnings when more than one SSL-aware virtual server uses the
928 * same IP:port. This doesn't work because mod_ssl then will always use
929 * just the certificate/keys of one virtual host (which one cannot be said
930 * easily - but that doesn't matter here).
932 table = apr_hash_make(p);
934 for (s = base_server; s; s = s->next) {
941 key = apr_psprintf(p, "%pA:%u",
942 &s->addrs->host_addr, s->addrs->host_port);
945 if ((ps = (server_rec *)apr_hash_get(table, key, klen))) {
946 ssl_log(base_server, SSL_LOG_WARN,
947 "Init: SSL server IP/port conflict: "
948 "%s (%s:%d) vs. %s (%s:%d)",
949 ssl_util_vhostid(p, s),
950 (s->defn_name ? s->defn_name : "unknown"),
952 ssl_util_vhostid(p, ps),
953 (ps->defn_name ? ps->defn_name : "unknown"),
954 ps->defn_line_number);
959 apr_hash_set(table, key, klen, s);
963 ssl_log(base_server, SSL_LOG_WARN,
964 "Init: You should not use name-based "
965 "virtual hosts in conjunction with SSL!!");
969 static int ssl_init_FindCAList_X509NameCmp(X509_NAME **a, X509_NAME **b)
971 return(X509_NAME_cmp(*a, *b));
974 static void ssl_init_PushCAList(STACK_OF(X509_NAME) *ca_list,
975 server_rec *s, const char *file)
978 STACK_OF(X509_NAME) *sk;
980 sk = (STACK_OF(X509_NAME) *)SSL_load_client_CA_file(file);
986 for (n = 0; n < sk_X509_NAME_num(sk); n++) {
988 X509_NAME *name = sk_X509_NAME_value(sk, n);
990 ssl_log(s, SSL_LOG_TRACE,
991 "CA certificate: %s",
992 X509_NAME_oneline(name, name_buf, sizeof(name_buf)));
995 * note that SSL_load_client_CA_file() checks for duplicates,
996 * but since we call it multiple times when reading a directory
997 * we must also check for duplicates ourselves.
1000 if (sk_X509_NAME_find(ca_list, name) < 0) {
1001 /* this will be freed when ca_list is */
1002 sk_X509_NAME_push(ca_list, name);
1005 /* need to free this ourselves, else it will leak */
1006 X509_NAME_free(name);
1010 sk_X509_NAME_free(sk);
1013 STACK_OF(X509_NAME) *ssl_init_FindCAList(server_rec *s,
1015 const char *ca_file,
1016 const char *ca_path)
1018 STACK_OF(X509_NAME) *ca_list;
1021 * Start with a empty stack/list where new
1022 * entries get added in sorted order.
1024 ca_list = sk_X509_NAME_new(ssl_init_FindCAList_X509NameCmp);
1027 * Process CA certificate bundle file
1030 ssl_init_PushCAList(ca_list, s, ca_file);
1034 * Process CA certificate path files
1038 apr_finfo_t direntry;
1039 apr_int32_t finfo_flags = APR_FINFO_MIN|APR_FINFO_NAME;
1041 if (apr_dir_open(&dir, ca_path, ptemp) != APR_SUCCESS) {
1042 ssl_log(s, SSL_LOG_ERROR|SSL_ADD_ERRNO|SSL_INIT,
1043 "Failed to open SSLCACertificatePath `%s'",
1048 while ((apr_dir_read(&direntry, finfo_flags, dir)) == APR_SUCCESS) {
1050 if (direntry.filetype == APR_DIR) {
1051 continue; /* don't try to load directories */
1053 file = apr_pstrcat(ptemp, ca_path, "/", direntry.name, NULL);
1054 ssl_init_PushCAList(ca_list, s, file);
1063 sk_X509_NAME_set_cmp_func(ca_list, NULL);
1068 void ssl_init_Child(apr_pool_t *p, server_rec *s)
1070 SSLModConfigRec *mc = myModConfig(s);
1071 mc->pid = getpid(); /* only call getpid() once per-process */
1073 /* XXX: there should be an ap_srand() function */
1074 srand((unsigned int)time(NULL));
1076 /* open the mutex lockfile */
1077 ssl_mutex_reinit(s, p);
1080 #define MODSSL_CFG_ITEM_FREE(func, item) \
1086 apr_status_t ssl_init_ModuleKill(void *data)
1088 SSLSrvConfigRec *sc;
1089 server_rec *base_server = (server_rec *)data;
1093 * Drop the session cache and mutex
1095 ssl_scache_kill(base_server);
1098 * Destroy the temporary keys and params
1100 ssl_tmp_keys_free(base_server);
1103 * Free the non-pool allocated structures
1104 * in the per-server configurations
1106 for (s = base_server; s; s = s->next) {
1108 sc = mySrvConfig(s);
1110 for (i=0; i < SSL_AIDX_MAX; i++) {
1111 MODSSL_CFG_ITEM_FREE(X509_free,
1112 sc->server->pks->certs[i]);
1114 MODSSL_CFG_ITEM_FREE(EVP_PKEY_free,
1115 sc->server->pks->keys[i]);
1118 MODSSL_CFG_ITEM_FREE(X509_STORE_free,
1121 MODSSL_CFG_ITEM_FREE(SSL_CTX_free,
1122 sc->server->ssl_ctx);
1126 * Try to kill the internals of the SSL library.
1129 ERR_remove_state(0);