Added DHCP plugin stub.

configure.in

@@ -133,6 +133,7 @@ ARG_DISBL_SET([scripts],        [disable additional utilities (found in director
 ARG_DISBL_SET([updown],         [disable updown firewall script plugin.])
 ARG_DISBL_SET([attr],           [disable strongswan.conf based configuration attribute plugin.])
 ARG_ENABL_SET([attr-sql],       [enable SQL based configuration attribute plugin.])
+ARG_ENABL_SET([dhcp],           [enable DHCP based attribute provider plugin.])
 ARG_DISBL_SET([resolve],        [disable resolve DNS handler plugin.])
 ARG_ENABL_SET([padlock],        [enables VIA Padlock crypto plugin.])
 ARG_ENABL_SET([openssl],        [enables the OpenSSL crypto plugin.])
@@ -799,6 +800,7 @@ AM_CONDITIONAL(USE_SMP, test x$smp = xtrue)
 AM_CONDITIONAL(USE_SQL, test x$sql = xtrue)
 AM_CONDITIONAL(USE_UPDOWN, test x$updown = xtrue)
 AM_CONDITIONAL(USE_ATTR, test x$attr = xtrue)
+AM_CONDITIONAL(USE_DHCP, test x$dhcp = xtrue)
 AM_CONDITIONAL(USE_RESOLVE, test x$resolve = xtrue)
 AM_CONDITIONAL(USE_UNIT_TESTS, test x$unit_tests = xtrue)
 AM_CONDITIONAL(USE_LOAD_TESTER, test x$load_tester = xtrue)
@@ -935,6 +937,7 @@ AC_OUTPUT(
 	src/libcharon/plugins/stroke/Makefile
 	src/libcharon/plugins/updown/Makefile
 	src/libcharon/plugins/attr/Makefile
+	src/libcharon/plugins/dhcp/Makefile
 	src/libcharon/plugins/resolve/Makefile
 	src/libcharon/plugins/unit_tester/Makefile
 	src/libcharon/plugins/load_tester/Makefile

src/libcharon/Makefile.am

@@ -364,6 +364,14 @@ if MONOLITHIC
 endif
 endif
 
+if USE_DHCP
+  SUBDIRS += plugins/dhcp
+  PLUGINS += dhcp
+if MONOLITHIC
+  libcharon_la_LIBADD += plugins/dhcp/libstrongswan-dhcp.la
+endif
+endif
+
 if USE_RESOLVE
   SUBDIRS += plugins/resolve
   PLUGINS += resolve

src/libcharon/plugins/dhcp/Makefile.am

@@ -0,0 +1,14 @@
+
+INCLUDES = -I$(top_srcdir)/src/libstrongswan -I$(top_srcdir)/src/libcharon
+
+AM_CFLAGS = -rdynamic
+
+if MONOLITHIC
+noinst_LTLIBRARIES = libstrongswan-dhcp.la
+else
+plugin_LTLIBRARIES = libstrongswan-dhcp.la
+endif
+
+libstrongswan_dhcp_la_SOURCES = dhcp_plugin.h dhcp_plugin.c
+
+libstrongswan_dhcp_la_LDFLAGS = -module -avoid-version

src/libcharon/plugins/dhcp/dhcp_plugin.c

@@ -0,0 +1,52 @@
+/*
+ * 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 "dhcp_plugin.h"
+
+#include <daemon.h>
+
+typedef struct private_dhcp_plugin_t private_dhcp_plugin_t;
+
+/**
+ * private data of dhcp plugin
+ */
+struct private_dhcp_plugin_t {
+
+	/**
+	 * implements plugin interface
+	 */
+	dhcp_plugin_t public;
+};
+
+METHOD(plugin_t, destroy, void,
+	private_dhcp_plugin_t *this)
+{
+	free(this);
+}
+
+/**
+ * Plugin constructor.
+ */
+plugin_t *dhcp_plugin_create()
+{
+	private_dhcp_plugin_t *this;
+
+	INIT(this,
+		.public.plugin.destroy = _destroy,
+	);
+
+	return &this->public.plugin;
+}
+

src/libcharon/plugins/dhcp/dhcp_plugin.h

@@ -0,0 +1,42 @@
+/*
+ * 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.
+ */
+
+/**
+ * @defgroup dhcp dhcp
+ * @ingroup cplugins
+ *
+ * @defgroup dhcp_plugin dhcp_plugin
+ * @{ @ingroup dhcp
+ */
+
+#ifndef DHCP_PLUGIN_H_
+#define DHCP_PLUGIN_H_
+
+#include <plugins/plugin.h>
+
+typedef struct dhcp_plugin_t dhcp_plugin_t;
+
+/**
+ * DHCP based attribute provider plugin.
+ */
+struct dhcp_plugin_t {
+
+	/**
+	 * implements plugin interface
+	 */
+	plugin_t plugin;
+};
+
+#endif /** DHCP_PLUGIN_H_ @}*/