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
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,
50 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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) {
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->session_cache_timeout == UNSET) {
247 sc->session_cache_timeout = SSL_SESSION_CACHE_TIMEOUT;
250 if (sc->server->pphrase_dialog_type == SSL_PPTYPE_UNSET) {
251 sc->server->pphrase_dialog_type = SSL_PPTYPE_BUILTIN;
254 /* Open the dedicated SSL logfile */
255 ssl_log_open(base_server, s, p);
258 ssl_init_SSLLibrary(base_server);
261 ssl_util_thread_setup(base_server, p);
265 * Seed the Pseudo Random Number Generator (PRNG)
266 * only need ptemp here; nothing inside allocated from the pool
267 * needs to live once we return from ssl_rand_seed().
269 ssl_rand_seed(base_server, ptemp, SSL_RSCTX_STARTUP, "Init: ");
272 * read server private keys/public certs into memory.
273 * decrypting any encrypted keys via configured SSLPassPhraseDialogs
274 * anything that needs to live longer than ptemp needs to also survive
275 * restarts, in which case they'll live inside s->process->pool.
277 ssl_pphrase_Handle(base_server, ptemp);
279 ssl_tmp_keys_init(base_server);
282 * SSL external crypto device ("engine") support
284 #ifdef SSL_EXPERIMENTAL_ENGINE
285 ssl_init_Engine(base_server, p);
289 * initialize the mutex handling
291 if (!ssl_mutex_init(base_server, p)) {
292 return HTTP_INTERNAL_SERVER_ERROR;
296 * initialize session caching
298 ssl_scache_init(base_server, p);
303 ssl_log(base_server, SSL_LOG_INFO,
304 "Init: Initializing (virtual) servers for SSL");
306 for (s = base_server; s; s = s->next) {
309 * Either now skip this server when SSL is disabled for
310 * it or give out some information about what we're
315 * Read the server certificate and key
317 ssl_init_ConfigureServer(s, p, ptemp, sc);
321 * Configuration consistency checks
323 ssl_init_CheckServers(base_server, ptemp);
326 * Announce mod_ssl and SSL library in HTTP Server field
327 * as ``mod_ssl/X.X.X OpenSSL/X.X.X''
329 ssl_add_version_components(p, base_server);
331 SSL_init_app_data2_idx(); /* for SSL_get_app_data2() at request time */
337 * Support for external a Crypto Device ("engine"), usually
338 * a hardware accellerator card for crypto operations.
340 #ifdef SSL_EXPERIMENTAL_ENGINE
341 void ssl_init_Engine(server_rec *s, apr_pool_t *p)
343 SSLModConfigRec *mc = myModConfig(s);
346 if (mc->szCryptoDevice) {
347 if (!(e = ENGINE_by_id(mc->szCryptoDevice))) {
348 ssl_log(s, SSL_LOG_ERROR,
349 "Init: Failed to load Crypto Device API `%s'",
354 if (strEQ(mc->szCryptoDevice, "chil")) {
355 ENGINE_ctrl(e, ENGINE_CTRL_CHIL_SET_FORKCHECK, 1, 0, 0);
358 if (!ENGINE_set_default(e, ENGINE_METHOD_ALL)) {
359 ssl_log(s, SSL_LOG_ERROR,
360 "Init: Failed to enable Crypto Device API `%s'",
370 static void ssl_init_server_check(server_rec *s,
376 * check for important parameters and the
377 * possibility that the user forgot to set them.
379 if (!mctx->pks->cert_files[0]) {
380 ssl_log(s, SSL_LOG_ERROR|SSL_INIT,
381 "No SSL Certificate set [hint: SSLCertificateFile]");
386 * Check for problematic re-initializations
388 if (mctx->pks->certs[SSL_AIDX_RSA] ||
389 mctx->pks->certs[SSL_AIDX_DSA])
391 ssl_log(s, SSL_LOG_ERROR|SSL_INIT,
392 "Illegal attempt to re-initialise SSL for server "
393 "(theoretically shouldn't happen!)");
398 static void ssl_init_ctx_protocol(server_rec *s,
404 SSL_METHOD *method = NULL;
406 int protocol = mctx->protocol;
409 * Create the new per-server SSL context
411 if (protocol == SSL_PROTOCOL_NONE) {
412 ssl_log(s, SSL_LOG_ERROR|SSL_INIT,
413 "No SSL protocols available [hint: SSLProtocol]");
418 (protocol & SSL_PROTOCOL_SSLV2 ? "SSLv2, " : ""),
419 (protocol & SSL_PROTOCOL_SSLV3 ? "SSLv3, " : ""),
420 (protocol & SSL_PROTOCOL_TLSV1 ? "TLSv1, " : ""),
422 cp[strlen(cp)-2] = NUL;
424 ssl_log(s, SSL_LOG_TRACE|SSL_INIT,
425 "Creating new SSL context (protocols: %s)", cp);
427 if (protocol == SSL_PROTOCOL_SSLV2) {
429 SSLv2_client_method() : /* proxy */
430 SSLv2_server_method(); /* server */
431 ctx = SSL_CTX_new(method); /* only SSLv2 is left */
435 SSLv23_client_method() : /* proxy */
436 SSLv23_server_method(); /* server */
437 ctx = SSL_CTX_new(method); /* be more flexible */
442 SSL_CTX_set_options(ctx, SSL_OP_ALL);
444 if (!(protocol & SSL_PROTOCOL_SSLV2)) {
445 SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2);
448 if (!(protocol & SSL_PROTOCOL_SSLV3)) {
449 SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv3);
452 if (!(protocol & SSL_PROTOCOL_TLSV1)) {
453 SSL_CTX_set_options(ctx, SSL_OP_NO_TLSv1);
456 SSL_CTX_set_app_data(ctx, s);
459 * Configure additional context ingredients
461 SSL_CTX_set_options(ctx, SSL_OP_SINGLE_DH_USE);
464 static void ssl_init_ctx_session_cache(server_rec *s,
469 SSL_CTX *ctx = mctx->ssl_ctx;
470 SSLModConfigRec *mc = myModConfig(s);
471 long cache_mode = SSL_SESS_CACHE_OFF;
473 if (mc->nSessionCacheMode != SSL_SCMODE_NONE) {
474 /* SSL_SESS_CACHE_NO_INTERNAL_LOOKUP will force OpenSSL
475 * to ignore process local-caching and
476 * to always get/set/delete sessions using mod_ssl's callbacks.
478 cache_mode = SSL_SESS_CACHE_SERVER|SSL_SESS_CACHE_NO_INTERNAL_LOOKUP;
481 SSL_CTX_set_session_cache_mode(ctx, cache_mode);
483 SSL_CTX_sess_set_new_cb(ctx, ssl_callback_NewSessionCacheEntry);
484 SSL_CTX_sess_set_get_cb(ctx, ssl_callback_GetSessionCacheEntry);
485 SSL_CTX_sess_set_remove_cb(ctx, ssl_callback_DelSessionCacheEntry);
488 static void ssl_init_ctx_callbacks(server_rec *s,
493 SSL_CTX *ctx = mctx->ssl_ctx;
495 SSL_CTX_set_tmp_rsa_callback(ctx, ssl_callback_TmpRSA);
496 SSL_CTX_set_tmp_dh_callback(ctx, ssl_callback_TmpDH);
498 if (mctx->sc->log_level >= SSL_LOG_INFO) {
499 /* this callback only logs if SSLLogLevel >= info */
500 SSL_CTX_set_info_callback(ctx, ssl_callback_LogTracingState);
504 static void ssl_init_ctx_verify(server_rec *s,
509 SSL_CTX *ctx = mctx->ssl_ctx;
511 int verify = SSL_VERIFY_NONE;
512 STACK_OF(X509_NAME) *ca_list;
514 if (mctx->auth.verify_mode == SSL_CVERIFY_UNSET) {
515 mctx->auth.verify_mode = SSL_CVERIFY_NONE;
518 if (mctx->auth.verify_depth == UNSET) {
519 mctx->auth.verify_depth = 1;
523 * Configure callbacks for SSL context
525 if (mctx->auth.verify_mode == SSL_CVERIFY_REQUIRE) {
526 verify |= SSL_VERIFY_PEER_STRICT;
529 if ((mctx->auth.verify_mode == SSL_CVERIFY_OPTIONAL) ||
530 (mctx->auth.verify_mode == SSL_CVERIFY_OPTIONAL_NO_CA))
532 verify |= SSL_VERIFY_PEER;
539 SSL_CTX_set_verify(ctx, verify, ssl_callback_SSLVerify);
543 * Configure Client Authentication details
545 if (mctx->auth.ca_cert_file || mctx->auth.ca_cert_path) {
546 ssl_log(s, SSL_LOG_TRACE|SSL_INIT,
547 "Configuring client authentication");
549 if (!SSL_CTX_load_verify_locations(ctx,
550 mctx->auth.ca_cert_file,
551 mctx->auth.ca_cert_path))
553 ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR|SSL_INIT,
554 "Unable to configure verify locations "
555 "for client authentication");
559 ca_list = ssl_init_FindCAList(s, ptemp,
560 mctx->auth.ca_cert_file,
561 mctx->auth.ca_cert_path);
563 ssl_log(s, SSL_LOG_ERROR|SSL_INIT,
564 "Unable to determine list of available "
565 "CA certificates for client authentication");
569 SSL_CTX_set_client_CA_list(ctx, (STACK *)ca_list);
573 * Give a warning when no CAs were configured but client authentication
574 * should take place. This cannot work.
576 if (mctx->auth.verify_mode == SSL_CVERIFY_REQUIRE) {
577 ca_list = (STACK_OF(X509_NAME) *)SSL_CTX_get_client_CA_list(ctx);
579 if (sk_X509_NAME_num(ca_list) == 0) {
580 ssl_log(s, SSL_LOG_WARN,
581 "Init: Oops, you want to request client authentication, "
582 "but no CAs are known for verification!? "
583 "[Hint: SSLCACertificate*]");
588 static void ssl_init_ctx_cipher_suite(server_rec *s,
593 SSL_CTX *ctx = mctx->ssl_ctx;
594 const char *suite = mctx->auth.cipher_suite;
597 * Configure SSL Cipher Suite
603 ssl_log(s, SSL_LOG_TRACE|SSL_INIT,
604 "Configuring permitted SSL ciphers [%s]",
607 if (!SSL_CTX_set_cipher_list(ctx, suite)) {
608 ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR|SSL_INIT,
609 "Unable to configure permitted SSL ciphers");
614 static void ssl_init_ctx_crl(server_rec *s,
620 * Configure Certificate Revocation List (CRL) Details
623 if (!(mctx->crl_file || mctx->crl_path)) {
627 ssl_log(s, SSL_LOG_TRACE|SSL_INIT,
628 "Configuring certificate revocation facility");
631 SSL_X509_STORE_create((char *)mctx->crl_file,
632 (char *)mctx->crl_path);
635 ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR|SSL_INIT,
636 "Unable to configure X.509 CRL storage "
637 "for certificate revocation");
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 ssl_log(s, SSL_LOG_ERROR|SSL_INIT,
681 "Failed to configure CA certificate chain!");
685 ssl_log(s, SSL_LOG_TRACE|SSL_INIT,
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 ssl_log(s, SSL_LOG_TRACE|SSL_INIT,
730 "Configuring %s server certificate", type);
733 if (!(cert = d2i_X509(NULL, &ptr, asn1->nData))) {
734 ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR|SSL_INIT,
735 "Unable to import %s server certificate", type);
739 if (SSL_CTX_use_certificate(mctx->ssl_ctx, cert) <= 0) {
740 ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR|SSL_INIT,
741 "Unable to configure %s server certificate", type);
745 mctx->pks->certs[idx] = cert;
750 static int ssl_server_import_key(server_rec *s,
755 SSLModConfigRec *mc = myModConfig(s);
758 const char *type = ssl_asn1_keystr(idx);
759 int pkey_type = (idx == SSL_AIDX_RSA) ? EVP_PKEY_RSA : EVP_PKEY_DSA;
762 if (!(asn1 = ssl_asn1_table_get(mc->tPrivateKey, id))) {
766 ssl_log(s, SSL_LOG_TRACE|SSL_INIT,
767 "Configuring %s server private key", type);
770 if (!(pkey = d2i_PrivateKey(pkey_type, NULL, &ptr, asn1->nData)))
772 ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR|SSL_INIT,
773 "Unable to import %s server private key", type);
777 if (SSL_CTX_use_PrivateKey(mctx->ssl_ctx, pkey) <= 0) {
778 ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR|SSL_INIT,
779 "Unable to configure %s server private key", type);
784 * XXX: wonder if this is still needed, this is old todo doc.
785 * (see http://www.psy.uq.edu.au/~ftp/Crypto/ssleay/TODO.html)
787 if ((pkey_type == EVP_PKEY_DSA) && mctx->pks->certs[idx]) {
788 EVP_PKEY *pubkey = X509_get_pubkey(mctx->pks->certs[idx]);
790 if (pubkey && EVP_PKEY_missing_parameters(pubkey)) {
791 EVP_PKEY_copy_parameters(pubkey, pkey);
792 ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR|SSL_INIT,
793 "Copying DSA parameters from private key to certificate");
797 mctx->pks->keys[idx] = pkey;
802 static void ssl_check_public_cert(server_rec *s,
815 * Some information about the certificate(s)
818 if (SSL_X509_isSGC(cert)) {
819 ssl_log(s, SSL_LOG_INFO|SSL_INIT,
820 "%s server certificate enables "
821 "Server Gated Cryptography (SGC)",
822 ssl_asn1_keystr(type));
825 if (SSL_X509_getBC(cert, &is_ca, &pathlen)) {
827 ssl_log(s, SSL_LOG_WARN|SSL_INIT,
828 "%s server certificate is a CA certificate "
829 "(BasicConstraints: CA == TRUE !?)",
830 ssl_asn1_keystr(type));
834 ssl_log(s, SSL_LOG_WARN|SSL_INIT,
835 "%s server certificate is not a leaf certificate "
836 "(BasicConstraints: pathlen == %d > 0 !?)",
837 ssl_asn1_keystr(type), pathlen);
841 if (SSL_X509_getCN(ptemp, cert, &cn)) {
842 int fnm_flags = FNM_PERIOD|FNM_CASE_BLIND;
844 if (apr_is_fnmatch(cn) &&
845 (apr_fnmatch(cn, s->server_hostname,
846 fnm_flags) == FNM_NOMATCH))
848 ssl_log(s, SSL_LOG_WARN|SSL_INIT,
849 "%s server certificate wildcard CommonName (CN) `%s' "
850 "does NOT match server name!?",
851 ssl_asn1_keystr(type), cn);
853 else if (strNE(s->server_hostname, cn)) {
854 ssl_log(s, SSL_LOG_WARN|SSL_INIT,
855 "%s server certificate CommonName (CN) `%s' "
856 "does NOT match server name!?",
857 ssl_asn1_keystr(type), cn);
862 static void ssl_init_server_certs(server_rec *s,
867 const char *rsa_id, *dsa_id;
868 const char *vhost_id = mctx->sc->vhost_id;
870 int have_rsa, have_dsa;
872 rsa_id = ssl_asn1_table_keyfmt(ptemp, vhost_id, SSL_AIDX_RSA);
873 dsa_id = ssl_asn1_table_keyfmt(ptemp, vhost_id, SSL_AIDX_DSA);
875 have_rsa = ssl_server_import_cert(s, mctx, rsa_id, SSL_AIDX_RSA);
876 have_dsa = ssl_server_import_cert(s, mctx, dsa_id, SSL_AIDX_DSA);
878 if (!(have_rsa || have_dsa)) {
879 ssl_log(s, SSL_LOG_ERROR|SSL_INIT,
880 "Oops, no RSA or DSA server certificate found?!");
884 for (i = 0; i < SSL_AIDX_MAX; i++) {
885 ssl_check_public_cert(s, ptemp, mctx->pks->certs[i], i);
888 have_rsa = ssl_server_import_key(s, mctx, rsa_id, SSL_AIDX_RSA);
889 have_dsa = ssl_server_import_key(s, mctx, dsa_id, SSL_AIDX_DSA);
891 if (!(have_rsa || have_dsa)) {
892 ssl_log(s, SSL_LOG_ERROR|SSL_INIT,
893 "Oops, no RSA or DSA server private key found?!");
898 static void ssl_init_proxy_ctx(server_rec *s,
903 ssl_init_ctx(s, p, ptemp, sc->proxy);
906 static void ssl_init_server_ctx(server_rec *s,
911 ssl_init_server_check(s, p, ptemp, sc->server);
913 ssl_init_ctx(s, p, ptemp, sc->server);
915 ssl_init_server_certs(s, p, ptemp, sc->server);
919 * Configure a particular server
921 void ssl_init_ConfigureServer(server_rec *s,
927 ssl_log(s, SSL_LOG_INFO|SSL_INIT,
928 "Configuring server for SSL protocol");
929 ssl_init_server_ctx(s, p, ptemp, sc);
932 if (1) { /* XXX: add directive */
933 ssl_init_proxy_ctx(s, p, ptemp, sc);
937 void ssl_init_CheckServers(server_rec *base_server, apr_pool_t *p)
945 BOOL conflict = FALSE;
948 * Give out warnings when a server has HTTPS configured
949 * for the HTTP port or vice versa
951 for (s = base_server; s; s = s->next) {
954 if (sc->enabled && (s->port == DEFAULT_HTTP_PORT)) {
955 ssl_log(base_server, SSL_LOG_WARN,
956 "Init: (%s) You configured HTTPS(%d) "
957 "on the standard HTTP(%d) port!",
958 ssl_util_vhostid(p, s),
959 DEFAULT_HTTPS_PORT, DEFAULT_HTTP_PORT);
962 if (!sc->enabled && (s->port == DEFAULT_HTTPS_PORT)) {
963 ssl_log(base_server, SSL_LOG_WARN,
964 "Init: (%s) You configured HTTP(%d) "
965 "on the standard HTTPS(%d) port!",
966 ssl_util_vhostid(p, s),
967 DEFAULT_HTTP_PORT, DEFAULT_HTTPS_PORT);
972 * Give out warnings when more than one SSL-aware virtual server uses the
973 * same IP:port. This doesn't work because mod_ssl then will always use
974 * just the certificate/keys of one virtual host (which one cannot be said
975 * easily - but that doesn't matter here).
977 table = apr_hash_make(p);
979 for (s = base_server; s; s = s->next) {
986 key = apr_psprintf(p, "%pA:%u",
987 &s->addrs->host_addr, s->addrs->host_port);
990 if ((ps = (server_rec *)apr_hash_get(table, key, klen))) {
991 ssl_log(base_server, SSL_LOG_WARN,
992 "Init: SSL server IP/port conflict: "
993 "%s (%s:%d) vs. %s (%s:%d)",
994 ssl_util_vhostid(p, s),
995 (s->defn_name ? s->defn_name : "unknown"),
997 ssl_util_vhostid(p, ps),
998 (ps->defn_name ? ps->defn_name : "unknown"),
999 ps->defn_line_number);
1004 apr_hash_set(table, key, klen, s);
1008 ssl_log(base_server, SSL_LOG_WARN,
1009 "Init: You should not use name-based "
1010 "virtual hosts in conjunction with SSL!!");
1014 static int ssl_init_FindCAList_X509NameCmp(X509_NAME **a, X509_NAME **b)
1016 return(X509_NAME_cmp(*a, *b));
1019 static void ssl_init_PushCAList(STACK_OF(X509_NAME) *ca_list,
1020 server_rec *s, const char *file)
1023 STACK_OF(X509_NAME) *sk;
1025 sk = (STACK_OF(X509_NAME) *)SSL_load_client_CA_file(file);
1031 for (n = 0; n < sk_X509_NAME_num(sk); n++) {
1033 X509_NAME *name = sk_X509_NAME_value(sk, n);
1035 ssl_log(s, SSL_LOG_TRACE,
1036 "CA certificate: %s",
1037 X509_NAME_oneline(name, name_buf, sizeof(name_buf)));
1040 * note that SSL_load_client_CA_file() checks for duplicates,
1041 * but since we call it multiple times when reading a directory
1042 * we must also check for duplicates ourselves.
1045 if (sk_X509_NAME_find(ca_list, name) < 0) {
1046 /* this will be freed when ca_list is */
1047 sk_X509_NAME_push(ca_list, name);
1050 /* need to free this ourselves, else it will leak */
1051 X509_NAME_free(name);
1055 sk_X509_NAME_free(sk);
1058 STACK_OF(X509_NAME) *ssl_init_FindCAList(server_rec *s,
1060 const char *ca_file,
1061 const char *ca_path)
1063 STACK_OF(X509_NAME) *ca_list;
1066 * Start with a empty stack/list where new
1067 * entries get added in sorted order.
1069 ca_list = sk_X509_NAME_new(ssl_init_FindCAList_X509NameCmp);
1072 * Process CA certificate bundle file
1075 ssl_init_PushCAList(ca_list, s, ca_file);
1079 * Process CA certificate path files
1083 apr_finfo_t direntry;
1084 apr_int32_t finfo_flags = APR_FINFO_MIN|APR_FINFO_NAME;
1086 if (apr_dir_open(&dir, ca_path, ptemp) != APR_SUCCESS) {
1087 ssl_log(s, SSL_LOG_ERROR|SSL_ADD_ERRNO|SSL_INIT,
1088 "Failed to open SSLCACertificatePath `%s'",
1093 while ((apr_dir_read(&direntry, finfo_flags, dir)) == APR_SUCCESS) {
1095 if (direntry.filetype == APR_DIR) {
1096 continue; /* don't try to load directories */
1098 file = apr_pstrcat(ptemp, ca_path, "/", direntry.name, NULL);
1099 ssl_init_PushCAList(ca_list, s, file);
1108 sk_X509_NAME_set_cmp_func(ca_list, NULL);
1113 void ssl_init_Child(apr_pool_t *p, server_rec *s)
1115 SSLModConfigRec *mc = myModConfig(s);
1116 mc->pid = getpid(); /* only call getpid() once per-process */
1118 /* XXX: there should be an ap_srand() function */
1119 srand((unsigned int)time(NULL));
1121 /* open the mutex lockfile */
1122 ssl_mutex_reinit(s, p);
1125 #define MODSSL_CFG_ITEM_FREE(func, item) \
1131 static void ssl_init_ctx_cleanup(modssl_ctx_t *mctx)
1133 MODSSL_CFG_ITEM_FREE(X509_STORE_free, mctx->crl);
1135 MODSSL_CFG_ITEM_FREE(SSL_CTX_free, mctx->ssl_ctx);
1138 static void ssl_init_ctx_cleanup_proxy(modssl_ctx_t *mctx)
1140 ssl_init_ctx_cleanup(mctx);
1142 if (mctx->pkp->certs) {
1143 sk_X509_INFO_pop_free(mctx->pkp->certs, X509_INFO_free);
1147 static void ssl_init_ctx_cleanup_server(modssl_ctx_t *mctx)
1151 ssl_init_ctx_cleanup(mctx);
1153 for (i=0; i < SSL_AIDX_MAX; i++) {
1154 MODSSL_CFG_ITEM_FREE(X509_free,
1155 mctx->pks->certs[i]);
1157 MODSSL_CFG_ITEM_FREE(EVP_PKEY_free,
1158 mctx->pks->keys[i]);
1162 apr_status_t ssl_init_ModuleKill(void *data)
1164 SSLSrvConfigRec *sc;
1165 server_rec *base_server = (server_rec *)data;
1169 * Drop the session cache and mutex
1171 ssl_scache_kill(base_server);
1174 * Destroy the temporary keys and params
1176 ssl_tmp_keys_free(base_server);
1179 * Free the non-pool allocated structures
1180 * in the per-server configurations
1182 for (s = base_server; s; s = s->next) {
1183 sc = mySrvConfig(s);
1185 ssl_init_ctx_cleanup_proxy(sc->proxy);
1187 ssl_init_ctx_cleanup_server(sc->server);
1191 * Try to kill the internals of the SSL library.
1194 ERR_remove_state(0);