Added a hook to ignore specific messages
authorMartin Willi <martin@revosec.ch>
Tue, 9 Nov 2010 09:19:56 +0000 (10:19 +0100)
committerMartin Willi <martin@revosec.ch>
Wed, 5 Jan 2011 15:45:42 +0000 (16:45 +0100)
src/conftest/Makefile.am
src/conftest/hooks/ignore_message.c [new file with mode: 0644]

index 7764e7f..3e89fc3 100644 (file)
@@ -4,7 +4,7 @@ AM_CFLAGS = -rdynamic
 
 conftest_SOURCES = conftest.c conftest.h config.c config.h actions.c actions.h \
        hooks/hook.h hooks/ike_auth_fill.c hooks/unsort_message.c \
-       hooks/add_notify.c hooks/unencrypted_notify.c
+       hooks/add_notify.c hooks/unencrypted_notify.c hooks/ignore_message.c
 
 INCLUDES = \
        -I$(top_srcdir)/src/libstrongswan \
diff --git a/src/conftest/hooks/ignore_message.c b/src/conftest/hooks/ignore_message.c
new file mode 100644 (file)
index 0000000..33182dd
--- /dev/null
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2010 Martin Willi
+ * Copyright (C) 2010 revosec AG
+ *
+ * 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; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * 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.
+ */
+
+#include "hook.h"
+
+typedef struct private_ignore_message_t private_ignore_message_t;
+
+/**
+ * Private data of an ignore_message_t object.
+ */
+struct private_ignore_message_t {
+
+       /**
+        * Implements the hook_t interface.
+        */
+       hook_t hook;
+
+       /**
+        * Drop incoming or outgoing?
+        */
+       bool in;
+
+       /**
+        * Drop requests or responses?
+        */
+       bool req;
+
+       /**
+        * ID of message to drop.
+        */
+       int id;
+};
+
+METHOD(listener_t, message, bool,
+       private_ignore_message_t *this, ike_sa_t *ike_sa, message_t *message,
+       bool incoming)
+{
+       if (incoming == this->in &&
+               message->get_request(message) == this->req &&
+               message->get_message_id(message) == this->id)
+       {
+               DBG1(DBG_CFG, "ignoring message");
+               message->set_exchange_type(message, EXCHANGE_TYPE_UNDEFINED);
+       }
+       return TRUE;
+}
+
+METHOD(hook_t, destroy, void,
+       private_ignore_message_t *this)
+{
+       free(this);
+}
+
+/**
+ * Create the ignore_message hook
+ */
+hook_t *ignore_message_hook_create(void)
+{
+       private_ignore_message_t *this;
+
+       INIT(this,
+               .hook = {
+                       .listener = {
+                               .message = _message,
+                       },
+                       .destroy = _destroy,
+               },
+               .in = conftest->test->get_bool(conftest->test,
+                                                                               "hooks.ignore_message.inbound", TRUE),
+               .req = conftest->test->get_bool(conftest->test,
+                                                                               "hooks.ignore_message.request", TRUE),
+               .id = conftest->test->get_int(conftest->test,
+                                                                               "hooks.ignore_message.id", 0),
+       );
+
+       return &this->hook;
+}