Added PKCS#11 token plugin stub

configure.in

@@ -145,6 +145,7 @@ ARG_ENABL_SET([padlock],        [enables VIA Padlock crypto plugin.])
 ARG_ENABL_SET([openssl],        [enables the OpenSSL crypto plugin.])
 ARG_ENABL_SET([gcrypt],         [enables the libgcrypt plugin.])
 ARG_ENABL_SET([agent],          [enables the ssh-agent signing plugin.])
+ARG_ENABL_SET([pkcs11],         [enables the PKCS11 token support plugin.])
 ARG_ENABL_SET([addrblock],      [enables RFC 3779 address block constraint support.])
 ARG_ENABL_SET([uci],            [enable OpenWRT UCI configuration plugin.])
 ARG_ENABL_SET([android],        [enable Android specific plugin.])
@@ -769,6 +770,9 @@ fi
 if test x$agent = xtrue; then
 	libstrongswan_plugins=${libstrongswan_plugins}" agent"
 fi
+if test x$pkcs11 = xtrue; then
+	libstrongswan_plugins=${libstrongswan_plugins}" pkcs11"
+fi
 if test x$gmp = xtrue; then
 	libstrongswan_plugins=${libstrongswan_plugins}" gmp"
 	pluto_plugins=${pluto_plugins}" gmp"
@@ -824,6 +828,7 @@ AM_CONDITIONAL(USE_PADLOCK, test x$padlock = xtrue)
 AM_CONDITIONAL(USE_OPENSSL, test x$openssl = xtrue)
 AM_CONDITIONAL(USE_GCRYPT, test x$gcrypt = xtrue)
 AM_CONDITIONAL(USE_AGENT, test x$agent = xtrue)
+AM_CONDITIONAL(USE_PKCS11, test x$pkcs11 = xtrue)
 
 dnl charon plugins
 dnl ==============
@@ -953,6 +958,7 @@ AC_OUTPUT(
 	src/libstrongswan/plugins/openssl/Makefile
 	src/libstrongswan/plugins/gcrypt/Makefile
 	src/libstrongswan/plugins/agent/Makefile
+	src/libstrongswan/plugins/pkcs11/Makefile
 	src/libstrongswan/plugins/test_vectors/Makefile
 	src/libhydra/Makefile
 	src/libhydra/plugins/attr/Makefile

src/libstrongswan/Makefile.am

@@ -314,6 +314,13 @@ if MONOLITHIC
 endif
 endif
 
+if USE_PKCS11
+  SUBDIRS += plugins/pkcs11
+if MONOLITHIC
+  libstrongswan_la_LIBADD += plugins/pkcs11/libstrongswan-pkcs11.la
+endif
+endif
+
 if USE_TEST_VECTORS
   SUBDIRS += plugins/test_vectors
 if MONOLITHIC

src/libstrongswan/plugins/pkcs11/Makefile.am

@@ -0,0 +1,15 @@
+
+INCLUDES = -I$(top_srcdir)/src/libstrongswan
+
+AM_CFLAGS = -rdynamic
+
+if MONOLITHIC
+noinst_LTLIBRARIES = libstrongswan-pkcs11.la
+else
+plugin_LTLIBRARIES = libstrongswan-pkcs11.la
+endif
+
+libstrongswan_pkcs11_la_SOURCES = \
+	pkcs11_plugin.h pkcs11_plugin.c
+
+libstrongswan_pkcs11_la_LDFLAGS = -module -avoid-version

src/libstrongswan/plugins/pkcs11/pkcs11_plugin.c

@@ -0,0 +1,51 @@
+/*
+ * 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 "pkcs11_plugin.h"
+
+#include <library.h>
+
+typedef struct private_pkcs11_plugin_t private_pkcs11_plugin_t;
+
+/**
+ * private data of pkcs11_plugin
+ */
+struct private_pkcs11_plugin_t {
+
+	/**
+	 * public functions
+	 */
+	pkcs11_plugin_t public;
+};
+
+METHOD(plugin_t, destroy, void,
+	private_pkcs11_plugin_t *this)
+{
+	free(this);
+}
+
+/*
+ * see header file
+ */
+plugin_t *pkcs11_plugin_create()
+{
+	private_pkcs11_plugin_t *this;
+
+	INIT(this,
+		.public.plugin.destroy = _destroy,
+	);
+
+	return &this->public.plugin;
+}

src/libstrongswan/plugins/pkcs11/pkcs11_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 pkcs11 pkcs11
+ * @ingroup plugins
+ *
+ * @defgroup pkcs11_plugin pkcs11_plugin
+ * @{ @ingroup pkcs11
+ */
+
+#ifndef PKCS11_PLUGIN_H_
+#define PKCS11_PLUGIN_H_
+
+#include <plugins/plugin.h>
+
+typedef struct pkcs11_plugin_t pkcs11_plugin_t;
+
+/**
+ * Plugin providing PKCS#11 token support.
+ */
+struct pkcs11_plugin_t {
+
+	/**
+	 * Implements plugin interface,
+	 */
+	plugin_t plugin;
+};
+
+#endif /** PKCS11_PLUGIN_H_ @}*/