[svn-upgrade] new version strongswan (4.5.0)

6 files changed, 1197 insertions, 0 deletions

diff --git a/src/libstrongswan/plugins/gcm/Makefile.am b/src/libstrongswan/plugins/gcm/Makefile.am
new file mode 100644
index 000000000..ec733fbcc
--- /dev/null
+++ b/src/libstrongswan/plugins/gcm/Makefile.am
@@ -0,0 +1,16 @@
+
+INCLUDES = -I$(top_srcdir)/src/libstrongswan
+
+AM_CFLAGS = -rdynamic
+
+if MONOLITHIC
+noinst_LTLIBRARIES = libstrongswan-gcm.la
+else
+plugin_LTLIBRARIES = libstrongswan-gcm.la
+endif
+
+libstrongswan_gcm_la_SOURCES = \
+	gcm_plugin.h gcm_plugin.c \
+	gcm_aead.h gcm_aead.c
+
+libstrongswan_gcm_la_LDFLAGS = -module -avoid-version
diff --git a/src/libstrongswan/plugins/gcm/Makefile.in b/src/libstrongswan/plugins/gcm/Makefile.in
new file mode 100644
index 000000000..a4de9ea77
--- /dev/null
+++ b/src/libstrongswan/plugins/gcm/Makefile.in
@@ -0,0 +1,600 @@
+# Makefile.in generated by automake 1.11.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
+# Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
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+transform = $(program_transform_name)
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+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
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+	gcm_plugin.h gcm_plugin.c \
+	gcm_aead.h gcm_aead.c
+
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+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(plugindir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
+	clean-pluginLTLIBRARIES mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-pluginLTLIBRARIES
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pluginLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-noinstLTLIBRARIES clean-pluginLTLIBRARIES \
+	ctags distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pluginLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags uninstall uninstall-am \
+	uninstall-pluginLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/src/libstrongswan/plugins/gcm/gcm_aead.c b/src/libstrongswan/plugins/gcm/gcm_aead.c
new file mode 100644
index 000000000..0d7d91dbf
--- /dev/null
+++ b/src/libstrongswan/plugins/gcm/gcm_aead.c
@@ -0,0 +1,425 @@
+/*
+ * 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 "gcm_aead.h"
+
+#include <limits.h>
+
+#define BLOCK_SIZE 16
+#define NONCE_SIZE 12
+#define IV_SIZE 8
+#define SALT_SIZE (NONCE_SIZE - IV_SIZE)
+
+typedef struct private_gcm_aead_t private_gcm_aead_t;
+
+/**
+ * Private data of an gcm_aead_t object.
+ */
+struct private_gcm_aead_t {
+
+	/**
+	 * Public gcm_aead_t interface.
+	 */
+	gcm_aead_t public;
+
+	/**
+	 * Underlying CBC crypter.
+	 */
+	crypter_t *crypter;
+
+	/**
+	 * Size of the integrity check value
+	 */
+	size_t icv_size;
+
+	/**
+	 * Salt value
+	 */
+	char salt[SALT_SIZE];
+
+	/**
+	 * GHASH subkey H
+	 */
+	char h[BLOCK_SIZE];
+};
+
+/**
+ * Find a suiteable word size and network order conversion functions
+ */
+#if ULONG_MAX == 18446744073709551615UL && defined(htobe64)
+#	define htobeword htobe64
+#	define bewordtoh be64toh
+#	define SHIFT_WORD_TYPE u_int64_t
+#else
+#	define htobeword htonl
+#	define bewordtoh ntohl
+#	define SHIFT_WORD_TYPE u_int32_t
+#endif
+
+/**
+ * Bitshift a block right by one bit
+ */
+static void sr_block(char *block)
+{
+	int i;
+	SHIFT_WORD_TYPE *word = (SHIFT_WORD_TYPE*)block;
+
+	for (i = 0; i < BLOCK_SIZE / sizeof(*word); i++)
+	{
+		word[i] = bewordtoh(word[i]);
+	}
+	for (i = BLOCK_SIZE / sizeof(*word) - 1; i >= 0; i--)
+	{
+		word[i] >>= 1;
+		if (i != 0)
+		{
+			word[i] |= word[i - 1] << (sizeof(*word) * 8 - 1);
+		}
+	}
+	for (i = 0; i < BLOCK_SIZE / sizeof(*word); i++)
+	{
+		word[i] = htobeword(word[i]);
+	}
+}
+
+/**
+ * Naive implementation of block multiplication in GF128, no tables
+ */
+static void mult_block(char *x, char *y, char *res)
+{
+	char z[BLOCK_SIZE], v[BLOCK_SIZE], r;
+	int bit, byte;
+
+	r = 0xE1;
+	memset(z, 0, BLOCK_SIZE);
+	memcpy(v, y, BLOCK_SIZE);
+
+	for (byte = 0; byte < BLOCK_SIZE; byte++)
+	{
+		for (bit = 7; bit >= 0; bit--)
+		{
+			if (x[byte] & (1 << bit))
+			{
+				memxor(z, v, BLOCK_SIZE);
+			}
+			if (v[BLOCK_SIZE - 1] & 0x01)
+			{
+				sr_block(v);
+				v[0] ^= r;
+			}
+			else
+			{
+				sr_block(v);
+			}
+		}
+	}
+	memcpy(res, z, BLOCK_SIZE);
+}
+
+/**
+ * GHASH function
+ */
+static void ghash(private_gcm_aead_t *this, chunk_t x, char *res)
+{
+	char y[BLOCK_SIZE];
+
+	memset(y, 0, BLOCK_SIZE);
+
+	while (x.len)
+	{
+		memxor(y, x.ptr, BLOCK_SIZE);
+		mult_block(y, this->h, y);
+		x = chunk_skip(x, BLOCK_SIZE);
+	}
+	memcpy(res, y, BLOCK_SIZE);
+}
+
+/**
+ * GCTR function, en-/decrypts x inline
+ */
+static void gctr(private_gcm_aead_t *this, char *icb, chunk_t x)
+{
+	char cb[BLOCK_SIZE], iv[BLOCK_SIZE], tmp[BLOCK_SIZE];
+
+	memset(iv, 0, BLOCK_SIZE);
+	memcpy(cb, icb, BLOCK_SIZE);
+
+	while (x.len)
+	{
+		memcpy(tmp, cb, BLOCK_SIZE);
+		this->crypter->encrypt(this->crypter, chunk_from_thing(tmp),
+							   chunk_from_thing(iv), NULL);
+		memxor(x.ptr, tmp, min(BLOCK_SIZE, x.len));
+		chunk_increment(chunk_from_thing(cb));
+		x = chunk_skip(x, BLOCK_SIZE);
+	}
+}
+
+/**
+ * Generate the block J0
+ */
+static void create_j(private_gcm_aead_t *this, char *iv, char *j)
+{
+	memcpy(j, this->salt, SALT_SIZE);
+	memcpy(j + SALT_SIZE, iv, IV_SIZE);
+	htoun32(j + SALT_SIZE + IV_SIZE, 1);
+}
+
+/**
+ * Create GHASH subkey H
+ */
+static void create_h(private_gcm_aead_t *this, char *h)
+{
+	char zero[BLOCK_SIZE];
+
+	memset(zero, 0, BLOCK_SIZE);
+	memset(h, 0, BLOCK_SIZE);
+
+	this->crypter->encrypt(this->crypter, chunk_create(h, BLOCK_SIZE),
+						   chunk_from_thing(zero), NULL);
+}
+
+/**
+ * Encrypt/decrypt
+ */
+static void crypt(private_gcm_aead_t *this, char *j, chunk_t in, chunk_t out)
+{
+	char icb[BLOCK_SIZE];
+
+	memcpy(icb, j, BLOCK_SIZE);
+	chunk_increment(chunk_from_thing(icb));
+
+	out.len = in.len;
+	if (in.ptr != out.ptr)
+	{
+		memcpy(out.ptr, in.ptr, in.len);
+	}
+	gctr(this, icb, out);
+}
+
+/**
+ * Create ICV
+ */
+static void create_icv(private_gcm_aead_t *this, chunk_t assoc, chunk_t crypt,
+					   char *j, char *icv)
+{
+	size_t assoc_pad, crypt_pad;
+	chunk_t chunk;
+	char s[BLOCK_SIZE], *pos;
+
+	assoc_pad = (BLOCK_SIZE - (assoc.len % BLOCK_SIZE)) % BLOCK_SIZE;
+	crypt_pad = (BLOCK_SIZE - (crypt.len % BLOCK_SIZE)) % BLOCK_SIZE;
+
+	/* concatenate data to a new chunk */
+	chunk = chunk_alloc(assoc.len + assoc_pad +
+						crypt.len + crypt_pad + BLOCK_SIZE);
+	pos = chunk.ptr;
+	/* add associated data */
+	memcpy(pos, assoc.ptr, assoc.len);
+	pos += assoc.len;
+	memset(pos, 0, assoc_pad);
+	pos += assoc_pad;
+	/* add encrypted data */
+	memcpy(pos, crypt.ptr, crypt.len);
+	pos += crypt.len;
+	memset(pos, 0, crypt_pad);
+	pos += crypt_pad;
+	/* write associated len */
+	memset(pos, 0, 4);
+	pos += 4;
+	htoun32(pos, assoc.len * 8);
+	pos += 4;
+	/* write encrypted length */
+	memset(pos, 0, 4);
+	pos += 4;
+	htoun32(pos, crypt.len * 8);
+	pos += 4;
+
+	ghash(this, chunk, s);
+	free(chunk.ptr);
+	gctr(this, j, chunk_from_thing(s));
+
+	memcpy(icv, s, this->icv_size);
+}
+
+/**
+ * Verify the ICV value
+ */
+static bool verify_icv(private_gcm_aead_t *this, chunk_t assoc, chunk_t crypt,
+					   char *j, char *icv)
+{
+	char tmp[this->icv_size];
+
+	create_icv(this, assoc, crypt, j, tmp);
+
+	return memeq(tmp, icv, this->icv_size);
+}
+
+METHOD(aead_t, encrypt, void,
+	private_gcm_aead_t *this, chunk_t plain, chunk_t assoc, chunk_t iv,
+	chunk_t *encrypted)
+{
+	char j[BLOCK_SIZE];
+
+	create_j(this, iv.ptr, j);
+
+	if (encrypted)
+	{
+		*encrypted = chunk_alloc(plain.len + this->icv_size);
+		crypt(this, j, plain, *encrypted);
+		create_icv(this, assoc,
+				   chunk_create(encrypted->ptr, encrypted->len - this->icv_size),
+				   j, encrypted->ptr + encrypted->len - this->icv_size);
+	}
+	else
+	{
+		crypt(this, j, plain, plain);
+		create_icv(this, assoc, plain, j, plain.ptr + plain.len);
+	}
+}
+
+METHOD(aead_t, decrypt, bool,
+	private_gcm_aead_t *this, chunk_t encrypted, chunk_t assoc, chunk_t iv,
+	chunk_t *plain)
+{
+	char j[BLOCK_SIZE];
+
+	if (encrypted.len < this->icv_size)
+	{
+		return FALSE;
+	}
+
+	create_j(this, iv.ptr, j);
+
+	encrypted.len -= this->icv_size;
+	if (!verify_icv(this, assoc, encrypted, j, encrypted.ptr + encrypted.len))
+	{
+		return FALSE;
+	}
+	if (plain)
+	{
+		*plain = chunk_alloc(encrypted.len);
+		crypt(this, j, encrypted, *plain);
+	}
+	else
+	{
+		crypt(this, j, encrypted, encrypted);
+	}
+	return TRUE;
+}
+
+METHOD(aead_t, get_block_size, size_t,
+	private_gcm_aead_t *this)
+{
+	return 1;
+}
+
+METHOD(aead_t, get_icv_size, size_t,
+	private_gcm_aead_t *this)
+{
+	return this->icv_size;
+}
+
+METHOD(aead_t, get_iv_size, size_t,
+	private_gcm_aead_t *this)
+{
+	return IV_SIZE;
+}
+
+METHOD(aead_t, get_key_size, size_t,
+	private_gcm_aead_t *this)
+{
+	return this->crypter->get_key_size(this->crypter) + SALT_SIZE;
+}
+
+METHOD(aead_t, set_key, void,
+	private_gcm_aead_t *this, chunk_t key)
+{
+	memcpy(this->salt, key.ptr + key.len - SALT_SIZE, SALT_SIZE);
+	key.len -= SALT_SIZE;
+	this->crypter->set_key(this->crypter, key);
+	create_h(this, this->h);
+}
+
+METHOD(aead_t, destroy, void,
+	private_gcm_aead_t *this)
+{
+	this->crypter->destroy(this->crypter);
+	free(this);
+}
+
+/**
+ * See header
+ */
+gcm_aead_t *gcm_aead_create(encryption_algorithm_t algo, size_t key_size)
+{
+	private_gcm_aead_t *this;
+	size_t icv_size;
+
+	switch (key_size)
+	{
+		case 0:
+			key_size = 16;
+			break;
+		case 16:
+		case 24:
+		case 32:
+			break;
+		default:
+			return NULL;
+	}
+	switch (algo)
+	{
+		case ENCR_AES_GCM_ICV8:
+			algo = ENCR_AES_CBC;
+			icv_size = 8;
+			break;
+		case ENCR_AES_GCM_ICV12:
+			algo = ENCR_AES_CBC;
+			icv_size = 12;
+			break;
+		case ENCR_AES_GCM_ICV16:
+			algo = ENCR_AES_CBC;
+			icv_size = 16;
+			break;
+		default:
+			return NULL;
+	}
+
+	INIT(this,
+		.public = {
+			.aead = {
+				.encrypt = _encrypt,
+				.decrypt = _decrypt,
+				.get_block_size = _get_block_size,
+				.get_icv_size = _get_icv_size,
+				.get_iv_size = _get_iv_size,
+				.get_key_size = _get_key_size,
+				.set_key = _set_key,
+				.destroy = _destroy,
+			},
+		},
+		.crypter = lib->crypto->create_crypter(lib->crypto, algo, key_size),
+		.icv_size = icv_size,
+	);
+
+	if (!this->crypter)
+	{
+		free(this);
+		return NULL;
+	}
+
+	return &this->public;
+}
diff --git a/src/libstrongswan/plugins/gcm/gcm_aead.h b/src/libstrongswan/plugins/gcm/gcm_aead.h
new file mode 100644
index 000000000..db4be2442
--- /dev/null
+++ b/src/libstrongswan/plugins/gcm/gcm_aead.h
@@ -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.
+ */
+
+/**
+ * @defgroup gcm_aead gcm_aead
+ * @{ @ingroup gcm
+ */
+
+#ifndef GCM_AEAD_H_
+#define GCM_AEAD_H_
+
+#include <crypto/aead.h>
+
+typedef struct gcm_aead_t gcm_aead_t;
+
+/**
+ * Galois/Counter Mode (GCM).
+ *
+ * Implements GCM as specified in NIST 800-38D, using AEAD semantics from
+ * RFC 5282, based on RFC4106.
+ */
+struct gcm_aead_t {
+
+	/**
+	 * Implements aead_t interface.
+	 */
+	aead_t aead;
+};
+
+/**
+ * Create a gcm_aead instance.
+ *
+ * @param key_size		key size in bytes
+ * @param algo			algorithm to implement, a gcm mode
+ * @return				aead, NULL if not supported
+ */
+gcm_aead_t *gcm_aead_create(encryption_algorithm_t algo, size_t key_size);
+
+#endif /** GCM_AEAD_H_ @}*/
diff --git a/src/libstrongswan/plugins/gcm/gcm_plugin.c b/src/libstrongswan/plugins/gcm/gcm_plugin.c
new file mode 100644
index 000000000..061001b30
--- /dev/null
+++ b/src/libstrongswan/plugins/gcm/gcm_plugin.c
@@ -0,0 +1,63 @@
+/*
+ * 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 "gcm_plugin.h"
+
+#include <library.h>
+
+#include "gcm_aead.h"
+
+typedef struct private_gcm_plugin_t private_gcm_plugin_t;
+
+/**
+ * private data of gcm_plugin
+ */
+struct private_gcm_plugin_t {
+
+	/**
+	 * public functions
+	 */
+	gcm_plugin_t public;
+};
+
+METHOD(plugin_t, destroy, void,
+	private_gcm_plugin_t *this)
+{
+	lib->crypto->remove_aead(lib->crypto,
+					(aead_constructor_t)gcm_aead_create);
+
+	free(this);
+}
+
+/*
+ * see header file
+ */
+plugin_t *gcm_plugin_create()
+{
+	private_gcm_plugin_t *this;
+
+	INIT(this,
+		.public.plugin.destroy = _destroy,
+	);
+
+	lib->crypto->add_aead(lib->crypto, ENCR_AES_GCM_ICV8,
+					(aead_constructor_t)gcm_aead_create);
+	lib->crypto->add_aead(lib->crypto, ENCR_AES_GCM_ICV12,
+					(aead_constructor_t)gcm_aead_create);
+	lib->crypto->add_aead(lib->crypto, ENCR_AES_GCM_ICV16,
+					(aead_constructor_t)gcm_aead_create);
+
+	return &this->public.plugin;
+}
diff --git a/src/libstrongswan/plugins/gcm/gcm_plugin.h b/src/libstrongswan/plugins/gcm/gcm_plugin.h
new file mode 100644
index 000000000..52676708e
--- /dev/null
+++ b/src/libstrongswan/plugins/gcm/gcm_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 gcm gcm
+ * @ingroup plugins
+ *
+ * @defgroup gcm_plugin gcm_plugin
+ * @{ @ingroup gcm
+ */
+
+#ifndef GCM_PLUGIN_H_
+#define GCM_PLUGIN_H_
+
+#include <plugins/plugin.h>
+
+typedef struct gcm_plugin_t gcm_plugin_t;
+
+/**
+ * Plugin providing GCM mode operation.
+ */
+struct gcm_plugin_t {
+
+	/**
+	 * Implements plugin interface.
+	 */
+	plugin_t plugin;
+};
+
+#endif /** GCM_PLUGIN_H_ @}*/