| /* _ _ |
| ** _ __ ___ ___ __| | ___ ___| | mod_ssl |
| ** | '_ ` _ \ / _ \ / _` | / __/ __| | Apache Interface to OpenSSL |
| ** | | | | | | (_) | (_| | \__ \__ \ | www.modssl.org |
| ** |_| |_| |_|\___/ \__,_|___|___/___/_| ftp.modssl.org |
| ** |_____| |
| ** ssl_engine_init.c |
| ** Initialization of Servers |
| */ |
| |
| /* ==================================================================== |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2000-2002 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Apache" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| */ |
| /* ``Recursive, adj.; |
| see Recursive.'' |
| -- Unknown */ |
| #include "mod_ssl.h" |
| |
| /* _________________________________________________________________ |
| ** |
| ** Module Initialization |
| ** _________________________________________________________________ |
| */ |
| |
| static char *ssl_add_version_component(apr_pool_t *p, |
| server_rec *s, |
| char *name) |
| { |
| char *val = ssl_var_lookup(p, s, NULL, NULL, name); |
| |
| if (val && *val) { |
| ap_add_version_component(p, val); |
| } |
| |
| return val; |
| } |
| |
| static char *version_components[] = { |
| "SSL_VERSION_PRODUCT", |
| "SSL_VERSION_INTERFACE", |
| "SSL_VERSION_LIBRARY", |
| NULL |
| }; |
| |
| static void ssl_add_version_components(apr_pool_t *p, |
| server_rec *s) |
| { |
| char *vals[sizeof(version_components)/sizeof(char *)]; |
| int i; |
| |
| for (i=0; version_components[i]; i++) { |
| vals[i] = ssl_add_version_component(p, s, |
| version_components[i]); |
| } |
| |
| ssl_log(s, SSL_LOG_INFO, |
| "Server: %s, Interface: %s, Library: %s", |
| AP_SERVER_BASEVERSION, |
| vals[1], /* SSL_VERSION_INTERFACE */ |
| vals[2]); /* SSL_VERSION_LIBRARY */ |
| } |
| |
| |
| /* |
| * Initialize SSL library |
| */ |
| static void ssl_init_SSLLibrary(server_rec *s) |
| { |
| ssl_log(s, SSL_LOG_INFO, |
| "Init: Initializing %s library", SSL_LIBRARY_NAME); |
| |
| CRYPTO_malloc_init(); |
| SSL_load_error_strings(); |
| SSL_library_init(); |
| } |
| |
| /* |
| * Handle the Temporary RSA Keys and DH Params |
| */ |
| |
| #define MODSSL_TMP_KEY_FREE(mc, type, idx) \ |
| if (mc->pTmpKeys[idx]) { \ |
| type##_free((type *)mc->pTmpKeys[idx]); \ |
| mc->pTmpKeys[idx] = NULL; \ |
| } |
| |
| #define MODSSL_TMP_KEYS_FREE(mc, type) \ |
| MODSSL_TMP_KEY_FREE(mc, type, SSL_TMP_KEY_##type##_512); \ |
| MODSSL_TMP_KEY_FREE(mc, type, SSL_TMP_KEY_##type##_1024) |
| |
| static void ssl_tmp_keys_free(server_rec *s) |
| { |
| SSLModConfigRec *mc = myModConfig(s); |
| |
| MODSSL_TMP_KEYS_FREE(mc, RSA); |
| MODSSL_TMP_KEYS_FREE(mc, DH); |
| } |
| |
| static void ssl_tmp_key_init_rsa(server_rec *s, |
| int bits, int idx) |
| { |
| SSLModConfigRec *mc = myModConfig(s); |
| |
| if (!(mc->pTmpKeys[idx] = |
| RSA_generate_key(bits, RSA_F4, NULL, NULL))) |
| { |
| ssl_log(s, SSL_LOG_ERROR, |
| "Init: Failed to generate temporary " |
| "%d bit RSA private key", bits); |
| ssl_die(); |
| } |
| |
| } |
| |
| static void ssl_tmp_key_init_dh(server_rec *s, |
| int bits, int idx) |
| { |
| SSLModConfigRec *mc = myModConfig(s); |
| |
| if (!(mc->pTmpKeys[idx] = |
| ssl_dh_GetTmpParam(bits))) |
| { |
| ssl_log(s, SSL_LOG_ERROR, |
| "Init: Failed to generate temporary " |
| "%d bit DH parameters", bits); |
| ssl_die(); |
| } |
| } |
| |
| #define MODSSL_TMP_KEY_INIT_RSA(s, bits) \ |
| ssl_tmp_key_init_rsa(s, bits, SSL_TMP_KEY_RSA_##bits) |
| |
| #define MODSSL_TMP_KEY_INIT_DH(s, bits) \ |
| ssl_tmp_key_init_dh(s, bits, SSL_TMP_KEY_DH_##bits) |
| |
| static void ssl_tmp_keys_init(server_rec *s) |
| { |
| ssl_log(s, SSL_LOG_INFO, |
| "Init: Generating temporary RSA private keys (512/1024 bits)"); |
| |
| MODSSL_TMP_KEY_INIT_RSA(s, 512); |
| MODSSL_TMP_KEY_INIT_RSA(s, 1024); |
| |
| ssl_log(s, SSL_LOG_INFO, |
| "Init: Generating temporary DH parameters (512/1024 bits)"); |
| |
| MODSSL_TMP_KEY_INIT_DH(s, 512); |
| MODSSL_TMP_KEY_INIT_DH(s, 1024); |
| } |
| |
| /* |
| * Per-module initialization |
| */ |
| int ssl_init_Module(apr_pool_t *p, apr_pool_t *plog, |
| apr_pool_t *ptemp, |
| server_rec *base_server) |
| { |
| SSLModConfigRec *mc = myModConfig(base_server); |
| SSLSrvConfigRec *sc; |
| server_rec *s; |
| |
| /* |
| * Let us cleanup on restarts and exists |
| */ |
| apr_pool_cleanup_register(p, base_server, |
| ssl_init_ModuleKill, |
| apr_pool_cleanup_null); |
| |
| /* |
| * Any init round fixes the global config |
| */ |
| ssl_config_global_create(base_server); /* just to avoid problems */ |
| ssl_config_global_fix(mc); |
| |
| /* |
| * try to fix the configuration and open the dedicated SSL |
| * logfile as early as possible |
| */ |
| for (s = base_server; s; s = s->next) { |
| sc = mySrvConfig(s); |
| |
| /* Fix up stuff that may not have been set */ |
| if (sc->bEnabled == UNSET) { |
| sc->bEnabled = FALSE; |
| } |
| |
| if (sc->nVerifyClient == SSL_CVERIFY_UNSET) { |
| sc->nVerifyClient = SSL_CVERIFY_NONE; |
| } |
| |
| if (sc->nVerifyDepth == UNSET) { |
| sc->nVerifyDepth = 1; |
| } |
| |
| #ifdef SSL_EXPERIMENTAL_PROXY |
| if (sc->nProxyVerifyDepth == UNSET) { |
| sc->nProxyVerifyDepth = 1; |
| } |
| #endif |
| |
| if (sc->nSessionCacheTimeout == UNSET) { |
| sc->nSessionCacheTimeout = SSL_SESSION_CACHE_TIMEOUT; |
| } |
| |
| if (sc->nPassPhraseDialogType == SSL_PPTYPE_UNSET) { |
| sc->nPassPhraseDialogType = SSL_PPTYPE_BUILTIN; |
| } |
| |
| /* Open the dedicated SSL logfile */ |
| ssl_log_open(base_server, s, p); |
| } |
| |
| ssl_init_SSLLibrary(base_server); |
| |
| #if APR_HAS_THREADS |
| ssl_util_thread_setup(base_server, p); |
| #endif |
| |
| /* |
| * Seed the Pseudo Random Number Generator (PRNG) |
| * only need ptemp here; nothing inside allocated from the pool |
| * needs to live once we return from ssl_rand_seed(). |
| */ |
| ssl_rand_seed(base_server, ptemp, SSL_RSCTX_STARTUP, "Init: "); |
| |
| /* |
| * read server private keys/public certs into memory. |
| * decrypting any encrypted keys via configured SSLPassPhraseDialogs |
| * anything that needs to live longer than ptemp needs to also survive |
| * restarts, in which case they'll live inside s->process->pool. |
| */ |
| ssl_pphrase_Handle(base_server, ptemp); |
| |
| ssl_tmp_keys_init(base_server); |
| |
| /* |
| * SSL external crypto device ("engine") support |
| */ |
| #ifdef SSL_EXPERIMENTAL_ENGINE |
| ssl_init_Engine(base_server, p); |
| #endif |
| |
| /* |
| * Warn the user that he should use the session cache. |
| * But we can operate without it, of course. |
| */ |
| if (mc->nSessionCacheMode == SSL_SCMODE_UNSET) { |
| ssl_log(base_server, SSL_LOG_WARN, |
| "Init: Session Cache is not configured " |
| "[hint: SSLSessionCache]"); |
| mc->nSessionCacheMode = SSL_SCMODE_NONE; |
| } |
| |
| /* |
| * initialize the mutex handling |
| */ |
| if (!ssl_mutex_init(base_server, p)) { |
| return HTTP_INTERNAL_SERVER_ERROR; |
| } |
| |
| /* |
| * initialize session caching |
| */ |
| ssl_scache_init(base_server, p); |
| |
| /* |
| * initialize servers |
| */ |
| ssl_log(base_server, SSL_LOG_INFO, |
| "Init: Initializing (virtual) servers for SSL"); |
| |
| for (s = base_server; s; s = s->next) { |
| sc = mySrvConfig(s); |
| /* |
| * Either now skip this server when SSL is disabled for |
| * it or give out some information about what we're |
| * configuring. |
| */ |
| if (!sc->bEnabled) { |
| continue; |
| } |
| |
| ssl_log(s, SSL_LOG_INFO, |
| "Init: Configuring server %s for SSL protocol", |
| ssl_util_vhostid(p, s)); |
| |
| /* |
| * Read the server certificate and key |
| */ |
| ssl_init_ConfigureServer(s, p, ptemp, sc); |
| } |
| |
| /* |
| * Configuration consistency checks |
| */ |
| ssl_init_CheckServers(base_server, ptemp); |
| |
| /* |
| * Announce mod_ssl and SSL library in HTTP Server field |
| * as ``mod_ssl/X.X.X OpenSSL/X.X.X'' |
| */ |
| ssl_add_version_components(p, base_server); |
| |
| SSL_init_app_data2_idx(); /* for SSL_get_app_data2() at request time */ |
| |
| return OK; |
| } |
| |
| /* |
| * Support for external a Crypto Device ("engine"), usually |
| * a hardware accellerator card for crypto operations. |
| */ |
| #ifdef SSL_EXPERIMENTAL_ENGINE |
| void ssl_init_Engine(server_rec *s, apr_pool_t *p) |
| { |
| SSLModConfigRec *mc = myModConfig(s); |
| ENGINE *e; |
| |
| if (mc->szCryptoDevice) { |
| if (!(e = ENGINE_by_id(mc->szCryptoDevice))) { |
| ssl_log(s, SSL_LOG_ERROR, |
| "Init: Failed to load Crypto Device API `%s'", |
| mc->szCryptoDevice); |
| ssl_die(); |
| } |
| |
| if (strEQ(mc->szCryptoDevice, "chil")) { |
| ENGINE_ctrl(e, ENGINE_CTRL_CHIL_SET_FORKCHECK, 1, 0, 0); |
| } |
| |
| if (!ENGINE_set_default(e, ENGINE_METHOD_ALL)) { |
| ssl_log(s, SSL_LOG_ERROR, |
| "Init: Failed to enable Crypto Device API `%s'", |
| mc->szCryptoDevice); |
| ssl_die(); |
| } |
| |
| ENGINE_free(e); |
| } |
| } |
| #endif |
| |
| /* |
| * Configure a particular server |
| */ |
| void ssl_init_ConfigureServer(server_rec *s, |
| apr_pool_t *p, |
| apr_pool_t *ptemp, |
| SSLSrvConfigRec *sc) |
| { |
| SSLModConfigRec *mc = myModConfig(s); |
| int verify = SSL_VERIFY_NONE; |
| char *cp; |
| const char *vhost_id, *rsa_id, *dsa_id; |
| EVP_PKEY *pkey; |
| SSL_CTX *ctx; |
| STACK_OF(X509_NAME) *ca_list; |
| ssl_asn1_t *asn1; |
| unsigned char *ptr; |
| BOOL ok = FALSE; |
| int is_ca, pathlen; |
| int i, n; |
| long cache_mode; |
| |
| /* |
| * Create the server host:port string because we need it a lot |
| */ |
| sc->szVHostID = vhost_id = ssl_util_vhostid(p, s); |
| sc->nVHostID_length = strlen(sc->szVHostID); |
| |
| /* |
| * Now check for important parameters and the |
| * possibility that the user forgot to set them. |
| */ |
| if (!sc->szPublicCertFiles[0]) { |
| ssl_log(s, SSL_LOG_ERROR, |
| "Init: (%s) No SSL Certificate set [hint: SSLCertificateFile]", |
| vhost_id); |
| ssl_die(); |
| } |
| |
| /* |
| * Check for problematic re-initializations |
| */ |
| if (sc->pPublicCert[SSL_AIDX_RSA] || |
| sc->pPublicCert[SSL_AIDX_DSA]) |
| { |
| ssl_log(s, SSL_LOG_ERROR, |
| "Init: (%s) Illegal attempt to re-initialise SSL for server " |
| "(theoretically shouldn't happen!)", vhost_id); |
| ssl_die(); |
| } |
| |
| /* |
| * Create the new per-server SSL context |
| */ |
| if (sc->nProtocol == SSL_PROTOCOL_NONE) { |
| ssl_log(s, SSL_LOG_ERROR, |
| "Init: (%s) No SSL protocols available [hint: SSLProtocol]", |
| vhost_id); |
| ssl_die(); |
| } |
| |
| cp = apr_pstrcat(p, |
| (sc->nProtocol & SSL_PROTOCOL_SSLV2 ? "SSLv2, " : ""), |
| (sc->nProtocol & SSL_PROTOCOL_SSLV3 ? "SSLv3, " : ""), |
| (sc->nProtocol & SSL_PROTOCOL_TLSV1 ? "TLSv1, " : ""), |
| NULL); |
| cp[strlen(cp)-2] = NUL; |
| |
| ssl_log(s, SSL_LOG_TRACE, |
| "Init: (%s) Creating new SSL context (protocols: %s)", |
| vhost_id, cp); |
| |
| if (sc->nProtocol == SSL_PROTOCOL_SSLV2) { |
| ctx = SSL_CTX_new(SSLv2_server_method()); /* only SSLv2 is left */ |
| } |
| else { |
| ctx = SSL_CTX_new(SSLv23_server_method()); /* be more flexible */ |
| } |
| |
| SSL_CTX_set_options(ctx, SSL_OP_ALL); |
| |
| if (!(sc->nProtocol & SSL_PROTOCOL_SSLV2)) { |
| SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2); |
| } |
| |
| if (!(sc->nProtocol & SSL_PROTOCOL_SSLV3)) { |
| SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv3); |
| } |
| |
| if (!(sc->nProtocol & SSL_PROTOCOL_TLSV1)) { |
| SSL_CTX_set_options(ctx, SSL_OP_NO_TLSv1); |
| } |
| |
| SSL_CTX_set_app_data(ctx, s); |
| sc->pSSLCtx = ctx; |
| |
| /* |
| * Configure additional context ingredients |
| */ |
| SSL_CTX_set_options(ctx, SSL_OP_SINGLE_DH_USE); |
| |
| if (mc->nSessionCacheMode == SSL_SCMODE_NONE) { |
| cache_mode = SSL_SESS_CACHE_OFF; |
| } |
| else { |
| /* SSL_SESS_CACHE_NO_INTERNAL_LOOKUP will force OpenSSL |
| * to ignore process local-caching and |
| * to always get/set/delete sessions using mod_ssl's callbacks. |
| */ |
| cache_mode = SSL_SESS_CACHE_SERVER|SSL_SESS_CACHE_NO_INTERNAL_LOOKUP; |
| } |
| |
| SSL_CTX_set_session_cache_mode(ctx, cache_mode); |
| |
| /* |
| * Configure callbacks for SSL context |
| */ |
| if (sc->nVerifyClient == SSL_CVERIFY_REQUIRE) { |
| verify |= SSL_VERIFY_PEER_STRICT; |
| } |
| |
| if ((sc->nVerifyClient == SSL_CVERIFY_OPTIONAL) || |
| (sc->nVerifyClient == SSL_CVERIFY_OPTIONAL_NO_CA)) |
| { |
| verify |= SSL_VERIFY_PEER; |
| } |
| |
| SSL_CTX_set_verify(ctx, verify, ssl_callback_SSLVerify); |
| |
| SSL_CTX_sess_set_new_cb(ctx, ssl_callback_NewSessionCacheEntry); |
| SSL_CTX_sess_set_get_cb(ctx, ssl_callback_GetSessionCacheEntry); |
| SSL_CTX_sess_set_remove_cb(ctx, ssl_callback_DelSessionCacheEntry); |
| |
| SSL_CTX_set_tmp_rsa_callback(ctx, ssl_callback_TmpRSA); |
| SSL_CTX_set_tmp_dh_callback(ctx, ssl_callback_TmpDH); |
| |
| if (sc->nLogLevel >= SSL_LOG_INFO) { |
| /* this callback only logs if SSLLogLevel >= info */ |
| SSL_CTX_set_info_callback(ctx, ssl_callback_LogTracingState); |
| } |
| |
| /* |
| * Configure SSL Cipher Suite |
| */ |
| if (sc->szCipherSuite) { |
| ssl_log(s, SSL_LOG_TRACE, |
| "Init: (%s) Configuring permitted SSL ciphers [%s]", |
| vhost_id, sc->szCipherSuite); |
| |
| if (!SSL_CTX_set_cipher_list(ctx, sc->szCipherSuite)) { |
| ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR, |
| "Init: (%s) Unable to configure permitted SSL ciphers", |
| vhost_id); |
| ssl_die(); |
| } |
| } |
| |
| /* |
| * Configure Client Authentication details |
| */ |
| if (sc->szCACertificateFile || sc->szCACertificatePath) { |
| ssl_log(s, SSL_LOG_TRACE, |
| "Init: (%s) Configuring client authentication", vhost_id); |
| |
| if (!SSL_CTX_load_verify_locations(ctx, |
| sc->szCACertificateFile, |
| sc->szCACertificatePath)) |
| { |
| ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR, |
| "Init: (%s) Unable to configure verify locations " |
| "for client authentication", vhost_id); |
| ssl_die(); |
| } |
| |
| ca_list = ssl_init_FindCAList(s, ptemp, |
| sc->szCACertificateFile, |
| sc->szCACertificatePath); |
| if (!ca_list) { |
| ssl_log(s, SSL_LOG_ERROR, |
| "Init: (%s) Unable to determine list of available " |
| "CA certificates for client authentication", |
| vhost_id); |
| ssl_die(); |
| } |
| |
| SSL_CTX_set_client_CA_list(sc->pSSLCtx, (STACK *)ca_list); |
| } |
| |
| /* |
| * Configure Certificate Revocation List (CRL) Details |
| */ |
| if (sc->szCARevocationFile || sc->szCARevocationPath) { |
| ssl_log(s, SSL_LOG_TRACE, |
| "Init: (%s) Configuring certificate revocation facility", |
| vhost_id); |
| |
| sc->pRevocationStore = |
| SSL_X509_STORE_create((char *)sc->szCARevocationFile, |
| (char *)sc->szCARevocationPath); |
| |
| if (!sc->pRevocationStore) { |
| ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR, |
| "Init: (%s) Unable to configure X.509 CRL storage " |
| "for certificate revocation", |
| vhost_id); |
| ssl_die(); |
| } |
| } |
| |
| /* |
| * Give a warning when no CAs were configured but client authentication |
| * should take place. This cannot work. |
| */ |
| if (sc->nVerifyClient == SSL_CVERIFY_REQUIRE) { |
| ca_list = (STACK_OF(X509_NAME) *)SSL_CTX_get_client_CA_list(ctx); |
| |
| if (sk_X509_NAME_num(ca_list) == 0) { |
| ssl_log(s, SSL_LOG_WARN, |
| "Init: Ops, you want to request client authentication, " |
| "but no CAs are known for verification!? " |
| "[Hint: SSLCACertificate*]"); |
| } |
| } |
| |
| /* |
| * Configure server certificate(s) |
| */ |
| rsa_id = ssl_asn1_table_keyfmt(ptemp, vhost_id, SSL_AIDX_RSA); |
| dsa_id = ssl_asn1_table_keyfmt(ptemp, vhost_id, SSL_AIDX_DSA); |
| |
| if ((asn1 = ssl_asn1_table_get(mc->tPublicCert, rsa_id))) { |
| ssl_log(s, SSL_LOG_TRACE, |
| "Init: (%s) Configuring RSA server certificate", |
| vhost_id); |
| |
| ptr = asn1->cpData; |
| if (!(sc->pPublicCert[SSL_AIDX_RSA] = |
| d2i_X509(NULL, &ptr, asn1->nData))) |
| { |
| ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR, |
| "Init: (%s) Unable to import RSA server certificate", |
| vhost_id); |
| ssl_die(); |
| } |
| |
| if (SSL_CTX_use_certificate(ctx, sc->pPublicCert[SSL_AIDX_RSA]) <= 0) { |
| ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR, |
| "Init: (%s) Unable to configure RSA server certificate", |
| vhost_id); |
| ssl_die(); |
| } |
| |
| ok = TRUE; |
| } |
| |
| if ((asn1 = ssl_asn1_table_get(mc->tPublicCert, dsa_id))) { |
| ssl_log(s, SSL_LOG_TRACE, |
| "Init: (%s) Configuring DSA server certificate", |
| vhost_id); |
| |
| ptr = asn1->cpData; |
| if (!(sc->pPublicCert[SSL_AIDX_DSA] = |
| d2i_X509(NULL, &ptr, asn1->nData))) |
| { |
| ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR, |
| "Init: (%s) Unable to import DSA server certificate", |
| vhost_id); |
| ssl_die(); |
| } |
| |
| if (SSL_CTX_use_certificate(ctx, sc->pPublicCert[SSL_AIDX_DSA]) <= 0) { |
| ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR, |
| "Init: (%s) Unable to configure DSA server certificate", |
| vhost_id); |
| ssl_die(); |
| } |
| |
| ok = TRUE; |
| } |
| |
| if (!ok) { |
| ssl_log(s, SSL_LOG_ERROR, |
| "Init: (%s) Ops, no RSA or DSA server certificate found?!", |
| vhost_id); |
| ssl_log(s, SSL_LOG_ERROR, |
| "Init: (%s) You have to perform a *full* server restart " |
| "when you added or removed a certificate and/or key file", |
| vhost_id); |
| ssl_die(); |
| } |
| |
| /* |
| * Some information about the certificate(s) |
| */ |
| for (i = 0; i < SSL_AIDX_MAX; i++) { |
| if (sc->pPublicCert[i]) { |
| if (SSL_X509_isSGC(sc->pPublicCert[i])) { |
| ssl_log(s, SSL_LOG_INFO, |
| "Init: (%s) %s server certificate enables " |
| "Server Gated Cryptography (SGC)", |
| vhost_id, ssl_asn1_keystr(i)); |
| } |
| |
| if (SSL_X509_getBC(sc->pPublicCert[i], &is_ca, &pathlen)) { |
| if (is_ca) { |
| ssl_log(s, SSL_LOG_WARN, |
| "Init: (%s) %s server certificate " |
| "is a CA certificate " |
| "(BasicConstraints: CA == TRUE !?)", |
| vhost_id, ssl_asn1_keystr(i)); |
| } |
| |
| if (pathlen > 0) { |
| ssl_log(s, SSL_LOG_WARN, |
| "Init: (%s) %s server certificate " |
| "is not a leaf certificate " |
| "(BasicConstraints: pathlen == %d > 0 !?)", |
| vhost_id, ssl_asn1_keystr(i), pathlen); |
| } |
| } |
| |
| if (SSL_X509_getCN(p, sc->pPublicCert[i], &cp)) { |
| int fnm_flags = FNM_PERIOD|FNM_CASE_BLIND; |
| |
| if (apr_is_fnmatch(cp) && |
| (apr_fnmatch(cp, s->server_hostname, |
| fnm_flags) == FNM_NOMATCH)) |
| { |
| ssl_log(s, SSL_LOG_WARN, |
| "Init: (%s) %s server certificate " |
| "wildcard CommonName (CN) `%s' " |
| "does NOT match server name!?", |
| vhost_id, ssl_asn1_keystr(i), cp); |
| } |
| else if (strNE(s->server_hostname, cp)) { |
| ssl_log(s, SSL_LOG_WARN, |
| "Init: (%s) %s server certificate " |
| "CommonName (CN) `%s' " |
| "does NOT match server name!?", |
| vhost_id, ssl_asn1_keystr(i), cp); |
| } |
| } |
| } |
| } |
| |
| /* |
| * Configure server private key(s) |
| */ |
| ok = FALSE; |
| |
| if ((asn1 = ssl_asn1_table_get(mc->tPrivateKey, rsa_id))) { |
| ssl_log(s, SSL_LOG_TRACE, |
| "Init: (%s) Configuring RSA server private key", |
| vhost_id); |
| |
| ptr = asn1->cpData; |
| if (!(sc->pPrivateKey[SSL_AIDX_RSA] = |
| d2i_PrivateKey(EVP_PKEY_RSA, NULL, &ptr, asn1->nData))) |
| { |
| ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR, |
| "Init: (%s) Unable to import RSA server private key", |
| vhost_id); |
| ssl_die(); |
| } |
| |
| if (SSL_CTX_use_PrivateKey(ctx, sc->pPrivateKey[SSL_AIDX_RSA]) <= 0) { |
| ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR, |
| "Init: (%s) Unable to configure RSA server private key", |
| vhost_id); |
| ssl_die(); |
| } |
| |
| ok = TRUE; |
| } |
| |
| if ((asn1 = ssl_asn1_table_get(mc->tPrivateKey, dsa_id))) { |
| ssl_log(s, SSL_LOG_TRACE, |
| "Init: (%s) Configuring DSA server private key", |
| vhost_id); |
| |
| ptr = asn1->cpData; |
| if (!(sc->pPrivateKey[SSL_AIDX_DSA] = |
| d2i_PrivateKey(EVP_PKEY_DSA, NULL, &ptr, asn1->nData))) |
| { |
| ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR, |
| "Init: (%s) Unable to import DSA server private key", |
| vhost_id); |
| ssl_die(); |
| } |
| |
| if (SSL_CTX_use_PrivateKey(ctx, sc->pPrivateKey[SSL_AIDX_DSA]) <= 0) { |
| ssl_log(s, SSL_LOG_ERROR|SSL_ADD_SSLERR, |
| "Init: (%s) Unable to configure DSA server private key", |
| vhost_id); |
| ssl_die(); |
| } |
| |
| ok = TRUE; |
| } |
| |
| if (!ok) { |
| ssl_log(s, SSL_LOG_ERROR, |
| "Init: (%s) Ops, no RSA or DSA server private key found?!", |
| vhost_id); |
| ssl_die(); |
| } |
| |
| /* |
| * Optionally copy DSA parameters for certificate from private key |
| * (see http://www.psy.uq.edu.au/~ftp/Crypto/ssleay/TODO.html) |
| */ |
| if (sc->pPublicCert[SSL_AIDX_DSA] && |
| sc->pPrivateKey[SSL_AIDX_DSA]) |
| { |
| pkey = X509_get_pubkey(sc->pPublicCert[SSL_AIDX_DSA]); |
| |
| if (pkey && (EVP_PKEY_key_type(pkey) == EVP_PKEY_DSA) && |
| EVP_PKEY_missing_parameters(pkey)) |
| { |
| EVP_PKEY_copy_parameters(pkey, |
| sc->pPrivateKey[SSL_AIDX_DSA]); |
| } |
| } |
| |
| /* |
| * Optionally configure extra server certificate chain certificates. |
| * This is usually done by OpenSSL automatically when one of the |
| * server cert issuers are found under SSLCACertificatePath or in |
| * SSLCACertificateFile. But because these are intended for client |
| * authentication it can conflict. For instance when you use a |
| * Global ID server certificate you've to send out the intermediate |
| * CA certificate, too. When you would just configure this with |
| * SSLCACertificateFile and also use client authentication mod_ssl |
| * would accept all clients also issued by this CA. Obviously this |
| * isn't what we want in this situation. So this feature here exists |
| * to allow one to explicity configure CA certificates which are |
| * used only for the server certificate chain. |
| */ |
| if (sc->szCertificateChain) { |
| BOOL skip_first = FALSE; |
| |
| for (i = 0; (i < SSL_AIDX_MAX) && sc->szPublicCertFiles[i]; i++) { |
| if (strEQ(sc->szPublicCertFiles[i], sc->szCertificateChain)) { |
| skip_first = TRUE; |
| break; |
| } |
| } |
| |
| n = SSL_CTX_use_certificate_chain(ctx, |
| (char *)sc->szCertificateChain, |
| skip_first, NULL); |
| if (n < 0) { |
| ssl_log(s, SSL_LOG_ERROR, |
| "Init: (%s) Failed to configure CA certificate chain!", |
| vhost_id); |
| ssl_die(); |
| } |
| |
| ssl_log(s, SSL_LOG_TRACE, |
| "Init: (%s) Configuring server certificate chain " |
| "(%d CA certificate%s)", |
| vhost_id, n, n == 1 ? "" : "s"); |
| } |
| } |
| |
| void ssl_init_CheckServers(server_rec *base_server, apr_pool_t *p) |
| { |
| server_rec *s, *ps; |
| SSLSrvConfigRec *sc; |
| apr_hash_t *table; |
| const char *key; |
| apr_ssize_t klen; |
| |
| BOOL conflict = FALSE; |
| |
| /* |
| * Give out warnings when a server has HTTPS configured |
| * for the HTTP port or vice versa |
| */ |
| for (s = base_server; s; s = s->next) { |
| sc = mySrvConfig(s); |
| |
| if (sc->bEnabled && (s->port == DEFAULT_HTTP_PORT)) { |
| ssl_log(base_server, SSL_LOG_WARN, |
| "Init: (%s) You configured HTTPS(%d) " |
| "on the standard HTTP(%d) port!", |
| ssl_util_vhostid(p, s), |
| DEFAULT_HTTPS_PORT, DEFAULT_HTTP_PORT); |
| } |
| |
| if (!sc->bEnabled && (s->port == DEFAULT_HTTPS_PORT)) { |
| ssl_log(base_server, SSL_LOG_WARN, |
| "Init: (%s) You configured HTTP(%d) " |
| "on the standard HTTPS(%d) port!", |
| ssl_util_vhostid(p, s), |
| DEFAULT_HTTP_PORT, DEFAULT_HTTPS_PORT); |
| } |
| } |
| |
| /* |
| * Give out warnings when more than one SSL-aware virtual server uses the |
| * same IP:port. This doesn't work because mod_ssl then will always use |
| * just the certificate/keys of one virtual host (which one cannot be said |
| * easily - but that doesn't matter here). |
| */ |
| table = apr_hash_make(p); |
| |
| for (s = base_server; s; s = s->next) { |
| sc = mySrvConfig(s); |
| |
| if (!sc->bEnabled) { |
| continue; |
| } |
| |
| key = apr_psprintf(p, "%pA:%u", |
| &s->addrs->host_addr, s->addrs->host_port); |
| klen = strlen(key); |
| |
| if ((ps = (server_rec *)apr_hash_get(table, key, klen))) { |
| ssl_log(base_server, SSL_LOG_WARN, |
| "Init: SSL server IP/port conflict: " |
| "%s (%s:%d) vs. %s (%s:%d)", |
| ssl_util_vhostid(p, s), |
| (s->defn_name ? s->defn_name : "unknown"), |
| s->defn_line_number, |
| ssl_util_vhostid(p, ps), |
| (ps->defn_name ? ps->defn_name : "unknown"), |
| ps->defn_line_number); |
| conflict = TRUE; |
| continue; |
| } |
| |
| apr_hash_set(table, key, klen, s); |
| } |
| |
| if (conflict) { |
| ssl_log(base_server, SSL_LOG_WARN, |
| "Init: You should not use name-based " |
| "virtual hosts in conjunction with SSL!!"); |
| } |
| } |
| |
| static int ssl_init_FindCAList_X509NameCmp(X509_NAME **a, X509_NAME **b) |
| { |
| return(X509_NAME_cmp(*a, *b)); |
| } |
| |
| static void ssl_init_PushCAList(STACK_OF(X509_NAME) *ca_list, |
| server_rec *s, const char *file) |
| { |
| int n; |
| STACK_OF(X509_NAME) *sk; |
| |
| sk = (STACK_OF(X509_NAME) *)SSL_load_client_CA_file(file); |
| |
| if (!sk) { |
| return; |
| } |
| |
| for (n = 0; n < sk_X509_NAME_num(sk); n++) { |
| char name_buf[256]; |
| X509_NAME *name = sk_X509_NAME_value(sk, n); |
| |
| ssl_log(s, SSL_LOG_TRACE, |
| "CA certificate: %s", |
| X509_NAME_oneline(name, name_buf, sizeof(name_buf))); |
| |
| /* |
| * note that SSL_load_client_CA_file() checks for duplicates, |
| * but since we call it multiple times when reading a directory |
| * we must also check for duplicates ourselves. |
| */ |
| |
| if (sk_X509_NAME_find(ca_list, name) < 0) { |
| /* this will be freed when ca_list is */ |
| sk_X509_NAME_push(ca_list, name); |
| } |
| else { |
| /* need to free this ourselves, else it will leak */ |
| X509_NAME_free(name); |
| } |
| } |
| |
| sk_X509_NAME_free(sk); |
| } |
| |
| STACK_OF(X509_NAME) *ssl_init_FindCAList(server_rec *s, |
| apr_pool_t *ptemp, |
| const char *ca_file, |
| const char *ca_path) |
| { |
| STACK_OF(X509_NAME) *ca_list; |
| |
| /* |
| * Start with a empty stack/list where new |
| * entries get added in sorted order. |
| */ |
| ca_list = sk_X509_NAME_new(ssl_init_FindCAList_X509NameCmp); |
| |
| /* |
| * Process CA certificate bundle file |
| */ |
| if (ca_file) { |
| ssl_init_PushCAList(ca_list, s, ca_file); |
| } |
| |
| /* |
| * Process CA certificate path files |
| */ |
| if (ca_path) { |
| apr_dir_t *dir; |
| apr_finfo_t direntry; |
| apr_int32_t finfo_flags = APR_FINFO_MIN|APR_FINFO_NAME; |
| |
| if (apr_dir_open(&dir, ca_path, ptemp) != APR_SUCCESS) { |
| ssl_log(s, SSL_LOG_ERROR|SSL_ADD_ERRNO, |
| "Init: Failed to open SSLCACertificatePath `%s'", |
| ca_path); |
| ssl_die(); |
| } |
| |
| while ((apr_dir_read(&direntry, finfo_flags, dir)) == APR_SUCCESS) { |
| const char *file; |
| if (direntry.filetype == APR_DIR) { |
| continue; /* don't try to load directories */ |
| } |
| file = apr_pstrcat(ptemp, ca_path, "/", direntry.name, NULL); |
| ssl_init_PushCAList(ca_list, s, file); |
| } |
| |
| apr_dir_close(dir); |
| } |
| |
| /* |
| * Cleanup |
| */ |
| sk_X509_NAME_set_cmp_func(ca_list, NULL); |
| |
| return ca_list; |
| } |
| |
| void ssl_init_Child(apr_pool_t *p, server_rec *s) |
| { |
| SSLModConfigRec *mc = myModConfig(s); |
| mc->pid = getpid(); /* only call getpid() once per-process */ |
| |
| /* XXX: there should be an ap_srand() function */ |
| srand((unsigned int)time(NULL)); |
| |
| /* open the mutex lockfile */ |
| ssl_mutex_reinit(s, p); |
| } |
| |
| #define MODSSL_CFG_ITEM_FREE(func, item) \ |
| if (item) { \ |
| func(item); \ |
| item = NULL; \ |
| } |
| |
| apr_status_t ssl_init_ModuleKill(void *data) |
| { |
| SSLSrvConfigRec *sc; |
| server_rec *base_server = (server_rec *)data; |
| server_rec *s; |
| |
| /* |
| * Drop the session cache and mutex |
| */ |
| ssl_scache_kill(base_server); |
| |
| /* |
| * Destroy the temporary keys and params |
| */ |
| ssl_tmp_keys_free(base_server); |
| |
| /* |
| * Free the non-pool allocated structures |
| * in the per-server configurations |
| */ |
| for (s = base_server; s; s = s->next) { |
| int i; |
| sc = mySrvConfig(s); |
| |
| for (i=0; i < SSL_AIDX_MAX; i++) { |
| MODSSL_CFG_ITEM_FREE(X509_free, |
| sc->pPublicCert[i]); |
| |
| MODSSL_CFG_ITEM_FREE(EVP_PKEY_free, |
| sc->pPrivateKey[i]); |
| } |
| |
| MODSSL_CFG_ITEM_FREE(X509_STORE_free, |
| sc->pRevocationStore); |
| |
| MODSSL_CFG_ITEM_FREE(SSL_CTX_free, |
| sc->pSSLCtx); |
| } |
| |
| /* |
| * Try to kill the internals of the SSL library. |
| */ |
| ERR_free_strings(); |
| ERR_remove_state(0); |
| EVP_cleanup(); |
| |
| return APR_SUCCESS; |
| } |
| |
