+++ /dev/null
-/* Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/* _ _
- * _ __ ___ ___ __| | ___ ___| | mod_ssl
- * | '_ ` _ \ / _ \ / _` | / __/ __| | Apache Interface to OpenSSL
- * | | | | | | (_) | (_| | \__ \__ \ |
- * |_| |_| |_|\___/ \__,_|___|___/___/_|
- * |_____|
- * ssl_engine_init.c
- * Initialization of Servers
- */
- /* ``Recursive, adj.;
- see Recursive.''
- -- Unknown */
-#include "mod_ssl.h"
-
-/* _________________________________________________________________
-**
-** Module Initialization
-** _________________________________________________________________
-*/
-
-
-static void ssl_add_version_components(apr_pool_t *p,
- server_rec *s)
-{
- char *modver = ssl_var_lookup(p, s, NULL, NULL, "SSL_VERSION_INTERFACE");
- char *libver = ssl_var_lookup(p, s, NULL, NULL, "SSL_VERSION_LIBRARY");
- char *incver = ssl_var_lookup(p, s, NULL, NULL,
- "SSL_VERSION_LIBRARY_INTERFACE");
-
- ap_add_version_component(p, modver);
- ap_add_version_component(p, libver);
-
- ap_log_error(APLOG_MARK, APLOG_INFO, 0, s,
- "%s compiled against Server: %s, Library: %s",
- modver, AP_SERVER_BASEVERSION, incver);
-}
-
-
-/*
- * Initialize SSL library
- */
-static void ssl_init_SSLLibrary(server_rec *s)
-{
- ap_log_error(APLOG_MARK, APLOG_INFO, 0, s,
- "Init: Initializing %s library", SSL_LIBRARY_NAME);
-
- SSL_load_error_strings();
- SSL_library_init();
- OpenSSL_add_all_algorithms(); /* Required for eg SHA256 client certs */
-}
-
-/*
- * 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 int 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)))
- {
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
- "Init: Failed to generate temporary "
- "%d bit RSA private key", bits);
- return !OK;
- }
-
- return OK;
-}
-
-static int ssl_tmp_key_init_dh(server_rec *s,
- int bits, int idx)
-{
- SSLModConfigRec *mc = myModConfig(s);
-
- if (!(mc->pTmpKeys[idx] =
- ssl_dh_GetTmpParam(bits)))
- {
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
- "Init: Failed to generate temporary "
- "%d bit DH parameters", bits);
- return !OK;
- }
-
- return OK;
-}
-
-#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 int ssl_tmp_keys_init(server_rec *s)
-{
- ap_log_error(APLOG_MARK, APLOG_INFO, 0, s,
- "Init: Generating temporary RSA private keys (512/1024 bits)");
-
- if (MODSSL_TMP_KEY_INIT_RSA(s, 512) ||
- MODSSL_TMP_KEY_INIT_RSA(s, 1024)) {
- return !OK;
- }
-
- ap_log_error(APLOG_MARK, APLOG_INFO, 0, s,
- "Init: Generating temporary DH parameters (512/1024 bits)");
-
- if (MODSSL_TMP_KEY_INIT_DH(s, 512) ||
- MODSSL_TMP_KEY_INIT_DH(s, 1024)) {
- return !OK;
- }
-
- return OK;
-}
-
-/*
- * 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);
-
- if (sc->server) {
- sc->server->sc = sc;
- }
-
- if (sc->proxy) {
- sc->proxy->sc = sc;
- }
-
- /*
- * Create the server host:port string because we need it a lot
- */
- sc->vhost_id = ssl_util_vhostid(p, s);
- sc->vhost_id_len = strlen(sc->vhost_id);
-
- /* Fix up stuff that may not have been set */
- if (sc->enabled == UNSET) {
- sc->enabled = FALSE;
- }
-
- if (sc->proxy_enabled == UNSET) {
- sc->proxy_enabled = FALSE;
- }
-
- if (sc->session_cache_timeout == UNSET) {
- sc->session_cache_timeout = SSL_SESSION_CACHE_TIMEOUT;
- }
-
- if (sc->server->pphrase_dialog_type == SSL_PPTYPE_UNSET) {
- sc->server->pphrase_dialog_type = SSL_PPTYPE_BUILTIN;
- }
-
- }
-
-#if APR_HAS_THREADS
- ssl_util_thread_setup(p);
-#endif
-
- /*
- * SSL external crypto device ("engine") support
- */
-#ifdef SSL_EXPERIMENTAL_ENGINE
- ssl_init_Engine(base_server, p);
-#endif
-
- ssl_init_SSLLibrary(base_server);
-
- /*
- * 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);
-
- if (ssl_tmp_keys_init(base_server)) {
- return !OK;
- }
-
- /*
- * 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
- */
- ap_log_error(APLOG_MARK, APLOG_INFO, 0, base_server,
- "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.
- */
-
- /*
- * 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))) {
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
- "Init: Failed to load Crypto Device API `%s'",
- mc->szCryptoDevice);
- ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
- 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)) {
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
- "Init: Failed to enable Crypto Device API `%s'",
- mc->szCryptoDevice);
- ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
- ssl_die();
- }
-
- ENGINE_free(e);
- }
-}
-#endif
-
-static void ssl_init_server_check(server_rec *s,
- apr_pool_t *p,
- apr_pool_t *ptemp,
- modssl_ctx_t *mctx)
-{
- /*
- * check for important parameters and the
- * possibility that the user forgot to set them.
- */
- if (!mctx->pks->cert_files[0]) {
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
- "No SSL Certificate set [hint: SSLCertificateFile]");
- ssl_die();
- }
-
- /*
- * Check for problematic re-initializations
- */
- if (mctx->pks->certs[SSL_AIDX_RSA] ||
- mctx->pks->certs[SSL_AIDX_DSA])
- {
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
- "Illegal attempt to re-initialise SSL for server "
- "(theoretically shouldn't happen!)");
- ssl_die();
- }
-}
-
-static void ssl_init_ctx_protocol(server_rec *s,
- apr_pool_t *p,
- apr_pool_t *ptemp,
- modssl_ctx_t *mctx)
-{
- SSL_CTX *ctx = NULL;
- SSL_METHOD *method = NULL;
- char *cp;
- int protocol = mctx->protocol;
- SSLSrvConfigRec *sc = mySrvConfig(s);
-
- /*
- * Create the new per-server SSL context
- */
- if (protocol == SSL_PROTOCOL_NONE) {
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
- "No SSL protocols available [hint: SSLProtocol]");
- ssl_die();
- }
-
- cp = apr_pstrcat(p,
- (protocol & SSL_PROTOCOL_SSLV2 ? "SSLv2, " : ""),
- (protocol & SSL_PROTOCOL_SSLV3 ? "SSLv3, " : ""),
- (protocol & SSL_PROTOCOL_TLSV1 ? "TLSv1, " : ""),
- NULL);
- cp[strlen(cp)-2] = NUL;
-
- ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
- "Creating new SSL context (protocols: %s)", cp);
-
- if (protocol == SSL_PROTOCOL_SSLV2) {
- method = mctx->pkp ?
- SSLv2_client_method() : /* proxy */
- SSLv2_server_method(); /* server */
- ctx = SSL_CTX_new(method); /* only SSLv2 is left */
- }
- else {
- method = mctx->pkp ?
- SSLv23_client_method() : /* proxy */
- SSLv23_server_method(); /* server */
- ctx = SSL_CTX_new(method); /* be more flexible */
- }
-
- mctx->ssl_ctx = ctx;
-
- SSL_CTX_set_options(ctx, SSL_OP_ALL);
-
- if (!(protocol & SSL_PROTOCOL_SSLV2)) {
- SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2);
- }
-
- if (!(protocol & SSL_PROTOCOL_SSLV3)) {
- SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv3);
- }
-
- if (!(protocol & SSL_PROTOCOL_TLSV1)) {
- SSL_CTX_set_options(ctx, SSL_OP_NO_TLSv1);
- }
-
-#ifdef SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
- if (sc->insecure_reneg == TRUE) {
- SSL_CTX_set_options(ctx, SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION);
- }
-#endif
-
- SSL_CTX_set_app_data(ctx, s);
-
- /*
- * Configure additional context ingredients
- */
- SSL_CTX_set_options(ctx, SSL_OP_SINGLE_DH_USE);
-
-#ifdef SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION
- /*
- * Disallow a session from being resumed during a renegotiation,
- * so that an acceptable cipher suite can be negotiated.
- */
- SSL_CTX_set_options(ctx, SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION);
-#endif
-}
-
-static void ssl_init_ctx_session_cache(server_rec *s,
- apr_pool_t *p,
- apr_pool_t *ptemp,
- modssl_ctx_t *mctx)
-{
- SSL_CTX *ctx = mctx->ssl_ctx;
- SSLModConfigRec *mc = myModConfig(s);
- long cache_mode = SSL_SESS_CACHE_OFF;
-
- if (mc->nSessionCacheMode != SSL_SCMODE_NONE) {
- /* SSL_SESS_CACHE_NO_INTERNAL 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;
- }
-
- SSL_CTX_set_session_cache_mode(ctx, cache_mode);
-
- 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);
-}
-
-static void ssl_init_ctx_callbacks(server_rec *s,
- apr_pool_t *p,
- apr_pool_t *ptemp,
- modssl_ctx_t *mctx)
-{
- SSL_CTX *ctx = mctx->ssl_ctx;
-
- SSL_CTX_set_tmp_rsa_callback(ctx, ssl_callback_TmpRSA);
- SSL_CTX_set_tmp_dh_callback(ctx, ssl_callback_TmpDH);
-
- SSL_CTX_set_info_callback(ctx, ssl_callback_Info);
-}
-
-static void ssl_init_ctx_verify(server_rec *s,
- apr_pool_t *p,
- apr_pool_t *ptemp,
- modssl_ctx_t *mctx)
-{
- SSL_CTX *ctx = mctx->ssl_ctx;
-
- int verify = SSL_VERIFY_NONE;
- STACK_OF(X509_NAME) *ca_list;
-
- if (mctx->auth.verify_mode == SSL_CVERIFY_UNSET) {
- mctx->auth.verify_mode = SSL_CVERIFY_NONE;
- }
-
- if (mctx->auth.verify_depth == UNSET) {
- mctx->auth.verify_depth = 1;
- }
-
- /*
- * Configure callbacks for SSL context
- */
- if (mctx->auth.verify_mode == SSL_CVERIFY_REQUIRE) {
- verify |= SSL_VERIFY_PEER_STRICT;
- }
-
- if ((mctx->auth.verify_mode == SSL_CVERIFY_OPTIONAL) ||
- (mctx->auth.verify_mode == SSL_CVERIFY_OPTIONAL_NO_CA))
- {
- verify |= SSL_VERIFY_PEER;
- }
-
- SSL_CTX_set_verify(ctx, verify, ssl_callback_SSLVerify);
-
- /*
- * Configure Client Authentication details
- */
- if (mctx->auth.ca_cert_file || mctx->auth.ca_cert_path) {
- ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
- "Configuring client authentication");
-
- if (!SSL_CTX_load_verify_locations(ctx,
- MODSSL_PCHAR_CAST mctx->auth.ca_cert_file,
- MODSSL_PCHAR_CAST mctx->auth.ca_cert_path))
- {
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
- "Unable to configure verify locations "
- "for client authentication");
- ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
- ssl_die();
- }
-
- ca_list = ssl_init_FindCAList(s, ptemp,
- mctx->auth.ca_cert_file,
- mctx->auth.ca_cert_path);
- if (!ca_list) {
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
- "Unable to determine list of available "
- "CA certificates for client authentication");
- ssl_die();
- }
-
- SSL_CTX_set_client_CA_list(ctx, (STACK *)ca_list);
- }
-
- /*
- * Give a warning when no CAs were configured but client authentication
- * should take place. This cannot work.
- */
- if (mctx->auth.verify_mode == SSL_CVERIFY_REQUIRE) {
- ca_list = (STACK_OF(X509_NAME) *)SSL_CTX_get_client_CA_list(ctx);
-
- if (sk_X509_NAME_num(ca_list) == 0) {
- ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
- "Init: Oops, you want to request client "
- "authentication, but no CAs are known for "
- "verification!? [Hint: SSLCACertificate*]");
- }
- }
-}
-
-static void ssl_init_ctx_cipher_suite(server_rec *s,
- apr_pool_t *p,
- apr_pool_t *ptemp,
- modssl_ctx_t *mctx)
-{
- SSL_CTX *ctx = mctx->ssl_ctx;
- const char *suite = mctx->auth.cipher_suite;
-
- /*
- * Configure SSL Cipher Suite
- */
- if (!suite) {
- return;
- }
-
- ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
- "Configuring permitted SSL ciphers [%s]",
- suite);
-
- if (!SSL_CTX_set_cipher_list(ctx, MODSSL_PCHAR_CAST suite)) {
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
- "Unable to configure permitted SSL ciphers");
- ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
- ssl_die();
- }
-}
-
-static void ssl_init_ctx_crl(server_rec *s,
- apr_pool_t *p,
- apr_pool_t *ptemp,
- modssl_ctx_t *mctx)
-{
- /*
- * Configure Certificate Revocation List (CRL) Details
- */
-
- if (!(mctx->crl_file || mctx->crl_path)) {
- return;
- }
-
- ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
- "Configuring certificate revocation facility");
-
- mctx->crl =
- SSL_X509_STORE_create((char *)mctx->crl_file,
- (char *)mctx->crl_path);
-
- if (!mctx->crl) {
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
- "Unable to configure X.509 CRL storage "
- "for certificate revocation");
- ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
- ssl_die();
- }
-}
-
-static void ssl_init_ctx_cert_chain(server_rec *s,
- apr_pool_t *p,
- apr_pool_t *ptemp,
- modssl_ctx_t *mctx)
-{
- BOOL skip_first = FALSE;
- int i, n;
- const char *chain = mctx->cert_chain;
-
- /*
- * 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 (!chain) {
- return;
- }
-
- for (i = 0; (i < SSL_AIDX_MAX) && mctx->pks->cert_files[i]; i++) {
- if (strEQ(mctx->pks->cert_files[i], chain)) {
- skip_first = TRUE;
- break;
- }
- }
-
- n = SSL_CTX_use_certificate_chain(mctx->ssl_ctx,
- (char *)chain,
- skip_first, NULL);
- if (n < 0) {
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
- "Failed to configure CA certificate chain!");
- ssl_die();
- }
-
- ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
- "Configuring server certificate chain "
- "(%d CA certificate%s)",
- n, n == 1 ? "" : "s");
-}
-
-static void ssl_init_ctx(server_rec *s,
- apr_pool_t *p,
- apr_pool_t *ptemp,
- modssl_ctx_t *mctx)
-{
- ssl_init_ctx_protocol(s, p, ptemp, mctx);
-
- ssl_init_ctx_session_cache(s, p, ptemp, mctx);
-
- ssl_init_ctx_callbacks(s, p, ptemp, mctx);
-
- ssl_init_ctx_verify(s, p, ptemp, mctx);
-
- ssl_init_ctx_cipher_suite(s, p, ptemp, mctx);
-
- ssl_init_ctx_crl(s, p, ptemp, mctx);
-
- if (mctx->pks) {
- /* XXX: proxy support? */
- ssl_init_ctx_cert_chain(s, p, ptemp, mctx);
- }
-}
-
-static int ssl_server_import_cert(server_rec *s,
- modssl_ctx_t *mctx,
- const char *id,
- int idx)
-{
- SSLModConfigRec *mc = myModConfig(s);
- ssl_asn1_t *asn1;
- MODSSL_D2I_X509_CONST unsigned char *ptr;
- const char *type = ssl_asn1_keystr(idx);
- X509 *cert;
-
- if (!(asn1 = ssl_asn1_table_get(mc->tPublicCert, id))) {
- return FALSE;
- }
-
- ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
- "Configuring %s server certificate", type);
-
- ptr = asn1->cpData;
- if (!(cert = d2i_X509(NULL, &ptr, asn1->nData))) {
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
- "Unable to import %s server certificate", type);
- ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
- ssl_die();
- }
-
- if (SSL_CTX_use_certificate(mctx->ssl_ctx, cert) <= 0) {
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
- "Unable to configure %s server certificate", type);
- ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
- ssl_die();
- }
-
- mctx->pks->certs[idx] = cert;
-
- return TRUE;
-}
-
-static int ssl_server_import_key(server_rec *s,
- modssl_ctx_t *mctx,
- const char *id,
- int idx)
-{
- SSLModConfigRec *mc = myModConfig(s);
- ssl_asn1_t *asn1;
- MODSSL_D2I_PrivateKey_CONST unsigned char *ptr;
- const char *type = ssl_asn1_keystr(idx);
- int pkey_type = (idx == SSL_AIDX_RSA) ? EVP_PKEY_RSA : EVP_PKEY_DSA;
- EVP_PKEY *pkey;
-
- if (!(asn1 = ssl_asn1_table_get(mc->tPrivateKey, id))) {
- return FALSE;
- }
-
- ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
- "Configuring %s server private key", type);
-
- ptr = asn1->cpData;
- if (!(pkey = d2i_PrivateKey(pkey_type, NULL, &ptr, asn1->nData)))
- {
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
- "Unable to import %s server private key", type);
- ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
- ssl_die();
- }
-
- if (SSL_CTX_use_PrivateKey(mctx->ssl_ctx, pkey) <= 0) {
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
- "Unable to configure %s server private key", type);
- ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
- ssl_die();
- }
-
- /*
- * XXX: wonder if this is still needed, this is old todo doc.
- * (see http://www.psy.uq.edu.au/~ftp/Crypto/ssleay/TODO.html)
- */
- if ((pkey_type == EVP_PKEY_DSA) && mctx->pks->certs[idx]) {
- EVP_PKEY *pubkey = X509_get_pubkey(mctx->pks->certs[idx]);
-
- if (pubkey && EVP_PKEY_missing_parameters(pubkey)) {
- EVP_PKEY_copy_parameters(pubkey, pkey);
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
- "Copying DSA parameters from private key to certificate");
- ssl_log_ssl_error(APLOG_MARK, APLOG_ERR, s);
- EVP_PKEY_free(pubkey);
- }
- }
-
- mctx->pks->keys[idx] = pkey;
-
- return TRUE;
-}
-
-static void ssl_check_public_cert(server_rec *s,
- apr_pool_t *ptemp,
- X509 *cert,
- int type)
-{
- int is_ca, pathlen;
- char *cn;
-
- if (!cert) {
- return;
- }
-
- /*
- * Some information about the certificate(s)
- */
-
- if (SSL_X509_isSGC(cert)) {
- ap_log_error(APLOG_MARK, APLOG_INFO, 0, s,
- "%s server certificate enables "
- "Server Gated Cryptography (SGC)",
- ssl_asn1_keystr(type));
- }
-
- if (SSL_X509_getBC(cert, &is_ca, &pathlen)) {
- if (is_ca) {
- ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
- "%s server certificate is a CA certificate "
- "(BasicConstraints: CA == TRUE !?)",
- ssl_asn1_keystr(type));
- }
-
- if (pathlen > 0) {
- ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
- "%s server certificate is not a leaf certificate "
- "(BasicConstraints: pathlen == %d > 0 !?)",
- ssl_asn1_keystr(type), pathlen);
- }
- }
-
- if (SSL_X509_getCN(ptemp, cert, &cn)) {
- int fnm_flags = FNM_PERIOD|FNM_CASE_BLIND;
-
- if (apr_fnmatch_test(cn) &&
- (apr_fnmatch(cn, s->server_hostname,
- fnm_flags) == FNM_NOMATCH))
- {
- ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
- "%s server certificate wildcard CommonName (CN) `%s' "
- "does NOT match server name!?",
- ssl_asn1_keystr(type), cn);
- }
- else if (strNE(s->server_hostname, cn)) {
- ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
- "%s server certificate CommonName (CN) `%s' "
- "does NOT match server name!?",
- ssl_asn1_keystr(type), cn);
- }
- }
-}
-
-static void ssl_init_server_certs(server_rec *s,
- apr_pool_t *p,
- apr_pool_t *ptemp,
- modssl_ctx_t *mctx)
-{
- const char *rsa_id, *dsa_id;
- const char *vhost_id = mctx->sc->vhost_id;
- int i;
- int have_rsa, have_dsa;
-
- rsa_id = ssl_asn1_table_keyfmt(ptemp, vhost_id, SSL_AIDX_RSA);
- dsa_id = ssl_asn1_table_keyfmt(ptemp, vhost_id, SSL_AIDX_DSA);
-
- have_rsa = ssl_server_import_cert(s, mctx, rsa_id, SSL_AIDX_RSA);
- have_dsa = ssl_server_import_cert(s, mctx, dsa_id, SSL_AIDX_DSA);
-
- if (!(have_rsa || have_dsa)) {
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
- "Oops, no RSA or DSA server certificate found?!");
- ssl_die();
- }
-
- for (i = 0; i < SSL_AIDX_MAX; i++) {
- ssl_check_public_cert(s, ptemp, mctx->pks->certs[i], i);
- }
-
- have_rsa = ssl_server_import_key(s, mctx, rsa_id, SSL_AIDX_RSA);
- have_dsa = ssl_server_import_key(s, mctx, dsa_id, SSL_AIDX_DSA);
-
- if (!(have_rsa || have_dsa)) {
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
- "Oops, no RSA or DSA server private key found?!");
- ssl_die();
- }
-}
-
-static void ssl_init_proxy_certs(server_rec *s,
- apr_pool_t *p,
- apr_pool_t *ptemp,
- modssl_ctx_t *mctx)
-{
- int n, ncerts = 0;
- STACK_OF(X509_INFO) *sk;
- modssl_pk_proxy_t *pkp = mctx->pkp;
-
- SSL_CTX_set_client_cert_cb(mctx->ssl_ctx,
- ssl_callback_proxy_cert);
-
- if (!(pkp->cert_file || pkp->cert_path)) {
- return;
- }
-
- sk = sk_X509_INFO_new_null();
-
- if (pkp->cert_file) {
- SSL_X509_INFO_load_file(ptemp, sk, pkp->cert_file);
- }
-
- if (pkp->cert_path) {
- SSL_X509_INFO_load_path(ptemp, sk, pkp->cert_path);
- }
-
- if ((ncerts = sk_X509_INFO_num(sk)) <= 0) {
- sk_X509_INFO_free(sk);
- ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
- "no client certs found for SSL proxy");
- return;
- }
-
- /* Check that all client certs have got certificates and private
- * keys. */
- for (n = 0; n < ncerts; n++) {
- X509_INFO *inf = sk_X509_INFO_value(sk, n);
-
- if (!inf->x509 || !inf->x_pkey) {
- sk_X509_INFO_free(sk);
- ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, s,
- "incomplete client cert configured for SSL proxy "
- "(missing or encrypted private key?)");
- ssl_die();
- return;
- }
- }
-
- ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
- "loaded %d client certs for SSL proxy",
- ncerts);
- pkp->certs = sk;
-}
-
-static void ssl_init_proxy_ctx(server_rec *s,
- apr_pool_t *p,
- apr_pool_t *ptemp,
- SSLSrvConfigRec *sc)
-{
- ssl_init_ctx(s, p, ptemp, sc->proxy);
-
- ssl_init_proxy_certs(s, p, ptemp, sc->proxy);
-}
-
-static void ssl_init_server_ctx(server_rec *s,
- apr_pool_t *p,
- apr_pool_t *ptemp,
- SSLSrvConfigRec *sc)
-{
- ssl_init_server_check(s, p, ptemp, sc->server);
-
- ssl_init_ctx(s, p, ptemp, sc->server);
-
- ssl_init_server_certs(s, p, ptemp, sc->server);
-}
-
-/*
- * Configure a particular server
- */
-void ssl_init_ConfigureServer(server_rec *s,
- apr_pool_t *p,
- apr_pool_t *ptemp,
- SSLSrvConfigRec *sc)
-{
- if (sc->enabled) {
- ap_log_error(APLOG_MARK, APLOG_INFO, 0, s,
- "Configuring server for SSL protocol");
- ssl_init_server_ctx(s, p, ptemp, sc);
- }
-
- if (sc->proxy_enabled) {
- ssl_init_proxy_ctx(s, p, ptemp, sc);
- }
-}
-
-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->enabled && (s->port == DEFAULT_HTTP_PORT)) {
- ap_log_error(APLOG_MARK, APLOG_WARNING, 0,
- base_server,
- "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->enabled && (s->port == DEFAULT_HTTPS_PORT)) {
- ap_log_error(APLOG_MARK, APLOG_WARNING, 0,
- base_server,
- "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->enabled && s->addrs)) {
- 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))) {
- ap_log_error(APLOG_MARK, APLOG_WARNING, 0,
- base_server,
- "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) {
- ap_log_error(APLOG_MARK, APLOG_WARNING, 0, base_server,
- "Init: You should not use name-based "
- "virtual hosts in conjunction with SSL!!");
- }
-}
-
-#ifdef SSLC_VERSION_NUMBER
-static int ssl_init_FindCAList_X509NameCmp(char **a, char **b)
-{
- return(X509_NAME_cmp((void*)*a, (void*)*b));
-}
-#else
-static int ssl_init_FindCAList_X509NameCmp(X509_NAME **a, X509_NAME **b)
-{
- return(X509_NAME_cmp(*a, *b));
-}
-#endif
-
-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(MODSSL_PCHAR_CAST 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);
-
- ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
- "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_TYPE|APR_FINFO_NAME;
- apr_status_t rv;
-
- if ((rv = apr_dir_open(&dir, ca_path, ptemp)) != APR_SUCCESS) {
- ap_log_error(APLOG_MARK, APLOG_ERR, rv, s,
- "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; \
- }
-
-static void ssl_init_ctx_cleanup(modssl_ctx_t *mctx)
-{
- MODSSL_CFG_ITEM_FREE(X509_STORE_free, mctx->crl);
-
- MODSSL_CFG_ITEM_FREE(SSL_CTX_free, mctx->ssl_ctx);
-}
-
-static void ssl_init_ctx_cleanup_proxy(modssl_ctx_t *mctx)
-{
- ssl_init_ctx_cleanup(mctx);
-
- if (mctx->pkp->certs) {
- sk_X509_INFO_pop_free(mctx->pkp->certs, X509_INFO_free);
- }
-}
-
-static void ssl_init_ctx_cleanup_server(modssl_ctx_t *mctx)
-{
- int i;
-
- ssl_init_ctx_cleanup(mctx);
-
- for (i=0; i < SSL_AIDX_MAX; i++) {
- MODSSL_CFG_ITEM_FREE(X509_free,
- mctx->pks->certs[i]);
-
- MODSSL_CFG_ITEM_FREE(EVP_PKEY_free,
- mctx->pks->keys[i]);
- }
-}
-
-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) {
- sc = mySrvConfig(s);
-
- ssl_init_ctx_cleanup_proxy(sc->proxy);
-
- ssl_init_ctx_cleanup_server(sc->server);
- }
-
- /*
- * Try to kill the internals of the SSL library.
- */
- ERR_remove_state(0);
- EVP_cleanup();
-
- return APR_SUCCESS;
-}
-
Code Review / bottlenecks.git / blobdiff