summaryrefslogtreecommitdiffstats
path: root/plugin/firewall/eurephiafw_helpers.c
diff options
context:
space:
mode:
authorDavid Sommerseth <dazo@users.sourceforge.net>2008-10-15 00:39:53 +0200
committerDavid Sommerseth <dazo@users.sourceforge.net>2008-10-15 00:39:53 +0200
commit0ea1a3e2e6a10300388e01ac89504abe3624ae56 (patch)
treefff59c70d4db431c2114e89d0819af8921aff463 /plugin/firewall/eurephiafw_helpers.c
parentb65b0802ead5e863ca8cb41fff77528735a1466c (diff)
downloadeurephia-0ea1a3e2e6a10300388e01ac89504abe3624ae56.tar.gz
eurephia-0ea1a3e2e6a10300388e01ac89504abe3624ae56.tar.xz
eurephia-0ea1a3e2e6a10300388e01ac89504abe3624ae56.zip
Reorganised the source code
Moved all OpenVPN plug-in related things into ./plugins, including firewall Moved all shared code into ./common and moved the generic part of the database files into ./database Updated all CMakeLists.txt files and created a new one for the root directory
Diffstat (limited to 'plugin/firewall/eurephiafw_helpers.c')
-rw-r--r--plugin/firewall/eurephiafw_helpers.c97
1 files changed, 97 insertions, 0 deletions
diff --git a/plugin/firewall/eurephiafw_helpers.c b/plugin/firewall/eurephiafw_helpers.c
new file mode 100644
index 0000000..ceb6d25
--- /dev/null
+++ b/plugin/firewall/eurephiafw_helpers.c
@@ -0,0 +1,97 @@
+/* eurephiafw_helpers.c -- Helper functions, shared between main module and
+ * firewall module. Setting up Posix MQ and semaphores
+ *
+ * GPLv2 - Copyright (C) 2008 David Sommerseth <dazo@users.sourceforge.net>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <signal.h>
+#include <unistd.h>
+#include <semaphore.h>
+#include <mqueue.h>
+
+#include "eurephia_struct.h"
+#include "eurephia_log.h"
+#include "eurephiafw.h"
+#include "eurephiafw_helpers.h"
+
+
+int efwSetupSemaphores(eurephiaCTX *ctx, efw_threaddata *cfg) {
+ // Initialise the main process' semaphore
+ cfg->semp_master = sem_open(SEMPH_MASTER, O_CREAT, 0666, 0);
+ if( cfg->semp_master == SEM_FAILED ) {
+ eurephia_log(ctx, LOG_FATAL, 0, "Could not setup semaphore for eFW master: %s", strerror(errno));
+ return 0;
+ }
+
+ // Initialise the worker process' semaphore
+ cfg->semp_worker = sem_open(SEMPH_WORKER, O_CREAT, 0666, 0);
+ if( cfg->semp_worker == SEM_FAILED ) {
+ eurephia_log(ctx, LOG_FATAL, 0, "Could not setup semaphore for eFW worker: %s", strerror(errno));
+ return 0;
+ }
+ return 1;
+}
+
+int efwRemoveSemaphores(eurephiaCTX *ctx, efw_threaddata *cfg) {
+ if( sem_close(cfg->semp_worker) != 0 ) {
+ eurephia_log(ctx, LOG_WARNING, 0,
+ "eFW: Could not destroy semaphore for worker: %s", strerror(errno));
+ }
+ sem_unlink(SEMPH_WORKER);
+
+ if( sem_close(cfg->semp_master) != 0 ) {
+ eurephia_log(ctx, LOG_WARNING, 0,
+ "eFW: Could not destroy semaphore for master: %s", strerror(errno));
+ }
+ sem_unlink(SEMPH_MASTER);
+ return 1;
+}
+
+int efwSetupMessageQueue(eurephiaCTX *ctx, efw_threaddata *cfg) {
+ struct mq_attr mqattr;
+
+ // Prepare a POSIX Message Queue
+ mqattr.mq_maxmsg = 10;
+ mqattr.mq_msgsize = EFW_MSG_SIZE;
+ mqattr.mq_flags = 0;
+ cfg->msgq = mq_open(MQUEUE_NAME, O_RDWR | O_CREAT, 0600, &mqattr);
+ if( cfg->msgq < 0 ) {
+ eurephia_log(ctx, LOG_FATAL, 0, "Could not open message queue: %s", strerror(errno));
+ return 0;
+ }
+ return 1;
+}
+
+int efwRemoveMessageQueue(eurephiaCTX *ctx, efw_threaddata *cfg) {
+ // Close and remove the message queue used
+ if( mq_close((*cfg).msgq) != 0 ) {
+ eurephia_log(ctx, LOG_WARNING, 0, "Could not do close the message queue used for eFW: %s",
+ strerror(errno));
+ }
+
+ if( mq_unlink(MQUEUE_NAME) != 0 ) {
+ eurephia_log(ctx, LOG_WARNING, 0, "Could not do close the message queue used for eFW: %s",
+ strerror(errno));
+ }
+ return 1;
+}
+