| /* Copyright 2001-2005 The Apache Software Foundation or its licensors, as |
| * applicable. |
| * |
| * Licensed 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_mutex.c |
| * Semaphore for Mutual Exclusion |
| */ |
| /* ``Real programmers confuse |
| Christmas and Halloween |
| because DEC 25 = OCT 31.'' |
| -- Unknown */ |
| |
| #include "ssl_private.h" |
| |
| #ifdef AP_NEED_SET_MUTEX_PERMS |
| #include "unixd.h" |
| #endif |
| |
| int ssl_mutex_init(server_rec *s, apr_pool_t *p) |
| { |
| SSLModConfigRec *mc = myModConfig(s); |
| apr_status_t rv; |
| |
| if (mc->nMutexMode == SSL_MUTEXMODE_NONE) |
| return TRUE; |
| |
| if (mc->pMutex) { |
| return TRUE; |
| } |
| if ((rv = apr_global_mutex_create(&mc->pMutex, mc->szMutexFile, |
| mc->nMutexMech, s->process->pool)) |
| != APR_SUCCESS) { |
| if (mc->szMutexFile) |
| ap_log_error(APLOG_MARK, APLOG_ERR, rv, s, |
| "Cannot create SSLMutex with file `%s'", |
| mc->szMutexFile); |
| else |
| ap_log_error(APLOG_MARK, APLOG_ERR, rv, s, |
| "Cannot create SSLMutex"); |
| return FALSE; |
| } |
| |
| #ifdef AP_NEED_SET_MUTEX_PERMS |
| rv = unixd_set_global_mutex_perms(mc->pMutex); |
| if (rv != APR_SUCCESS) { |
| ap_log_error(APLOG_MARK, APLOG_ERR, rv, s, |
| "Could not set permissions on ssl_mutex; check User " |
| "and Group directives"); |
| return FALSE; |
| } |
| #endif |
| return TRUE; |
| } |
| |
| int ssl_mutex_reinit(server_rec *s, apr_pool_t *p) |
| { |
| SSLModConfigRec *mc = myModConfig(s); |
| apr_status_t rv; |
| |
| if (mc->nMutexMode == SSL_MUTEXMODE_NONE) |
| return TRUE; |
| |
| if ((rv = apr_global_mutex_child_init(&mc->pMutex, |
| mc->szMutexFile, p)) != APR_SUCCESS) { |
| if (mc->szMutexFile) |
| ap_log_error(APLOG_MARK, APLOG_ERR, rv, s, |
| "Cannot reinit SSLMutex with file `%s'", |
| mc->szMutexFile); |
| else |
| ap_log_error(APLOG_MARK, APLOG_WARNING, rv, s, |
| "Cannot reinit SSLMutex"); |
| return FALSE; |
| } |
| return TRUE; |
| } |
| |
| int ssl_mutex_on(server_rec *s) |
| { |
| SSLModConfigRec *mc = myModConfig(s); |
| apr_status_t rv; |
| |
| if (mc->nMutexMode == SSL_MUTEXMODE_NONE) |
| return TRUE; |
| if ((rv = apr_global_mutex_lock(mc->pMutex)) != APR_SUCCESS) { |
| ap_log_error(APLOG_MARK, APLOG_WARNING, rv, s, |
| "Failed to acquire SSL session cache lock"); |
| return FALSE; |
| } |
| return TRUE; |
| } |
| |
| int ssl_mutex_off(server_rec *s) |
| { |
| SSLModConfigRec *mc = myModConfig(s); |
| apr_status_t rv; |
| |
| if (mc->nMutexMode == SSL_MUTEXMODE_NONE) |
| return TRUE; |
| if ((rv = apr_global_mutex_unlock(mc->pMutex)) != APR_SUCCESS) { |
| ap_log_error(APLOG_MARK, APLOG_WARNING, rv, s, |
| "Failed to release SSL session cache lock"); |
| return FALSE; |
| } |
| return TRUE; |
| } |
| |