[svn-upgrade] Integrating new upstream version, strongswan (4.4.0)

6 files changed, 1055 insertions, 0 deletions

diff --git a/src/libcharon/plugins/eap_md5/Makefile.am b/src/libcharon/plugins/eap_md5/Makefile.am
new file mode 100644
index 000000000..e9936c925
--- /dev/null
+++ b/src/libcharon/plugins/eap_md5/Makefile.am
@@ -0,0 +1,16 @@
+
+INCLUDES = -I$(top_srcdir)/src/libstrongswan -I$(top_srcdir)/src/libhydra \
+	-I$(top_srcdir)/src/libcharon
+
+AM_CFLAGS = -rdynamic
+
+if MONOLITHIC
+noinst_LTLIBRARIES = libstrongswan-eap-md5.la
+else
+plugin_LTLIBRARIES = libstrongswan-eap-md5.la
+endif
+
+libstrongswan_eap_md5_la_SOURCES = \
+	eap_md5_plugin.h eap_md5_plugin.c eap_md5.h eap_md5.c
+
+libstrongswan_eap_md5_la_LDFLAGS = -module -avoid-version
diff --git a/src/libcharon/plugins/eap_md5/Makefile.in b/src/libcharon/plugins/eap_md5/Makefile.in
new file mode 100644
index 000000000..943811604
--- /dev/null
+++ b/src/libcharon/plugins/eap_md5/Makefile.in
@@ -0,0 +1,587 @@
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+# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
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+# 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.
+
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+	    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/libcharon/plugins/eap_md5/eap_md5.c b/src/libcharon/plugins/eap_md5/eap_md5.c
new file mode 100644
index 000000000..0eda8f755
--- /dev/null
+++ b/src/libcharon/plugins/eap_md5/eap_md5.c
@@ -0,0 +1,303 @@
+/*
+ * Copyright (C) 2007 Martin Willi
+ * Hochschule fuer Technik Rapperswil
+ *
+ * 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 "eap_md5.h"
+
+#include <daemon.h>
+#include <library.h>
+#include <crypto/hashers/hasher.h>
+
+typedef struct private_eap_md5_t private_eap_md5_t;
+
+/**
+ * Private data of an eap_md5_t object.
+ */
+struct private_eap_md5_t {
+
+	/**
+	 * Public authenticator_t interface.
+	 */
+	eap_md5_t public;
+
+	/**
+	 * ID of the server
+	 */
+	identification_t *server;
+
+	/**
+	 * ID of the peer
+	 */
+	identification_t *peer;
+
+	/**
+	 * challenge sent by the server
+	 */
+	chunk_t challenge;
+
+	/**
+	 * EAP message identififier
+	 */
+	u_int8_t identifier;
+};
+
+typedef struct eap_md5_header_t eap_md5_header_t;
+
+/**
+ * packed eap MD5 header struct
+ */
+struct eap_md5_header_t {
+	/** EAP code (REQUEST/RESPONSE) */
+	u_int8_t code;
+	/** unique message identifier */
+	u_int8_t identifier;
+	/** length of whole message */
+	u_int16_t length;
+	/** EAP type */
+	u_int8_t type;
+	/** length of value (challenge) */
+	u_int8_t value_size;
+	/** actual value */
+	u_int8_t value[];
+} __attribute__((__packed__));
+
+#define CHALLENGE_LEN 16
+#define PAYLOAD_LEN (CHALLENGE_LEN + sizeof(eap_md5_header_t))
+
+/**
+ * Hash the challenge string, create response
+ */
+static status_t hash_challenge(private_eap_md5_t *this, chunk_t *response,
+							   identification_t *me, identification_t *other)
+{
+	shared_key_t *shared;
+	chunk_t concat;
+	hasher_t *hasher;
+
+	shared = charon->credentials->get_shared(charon->credentials, SHARED_EAP,
+											 me, other);
+	if (shared == NULL)
+	{
+		DBG1(DBG_IKE, "no EAP key found for hosts '%Y' - '%Y'", me, other);
+		return NOT_FOUND;
+	}
+	concat = chunk_cata("ccc", chunk_from_thing(this->identifier),
+						shared->get_key(shared), this->challenge);
+	shared->destroy(shared);
+	hasher = lib->crypto->create_hasher(lib->crypto, HASH_MD5);
+	if (hasher == NULL)
+	{
+		DBG1(DBG_IKE, "EAP-MD5 failed, MD5 not supported");
+		return FAILED;
+	}
+	hasher->allocate_hash(hasher, concat, response);
+	hasher->destroy(hasher);
+	return SUCCESS;
+}
+
+/**
+ * Implementation of eap_method_t.initiate for the peer
+ */
+static status_t initiate_peer(private_eap_md5_t *this, eap_payload_t **out)
+{
+	/* peer never initiates */
+	return FAILED;
+}
+
+/**
+ * Implementation of eap_method_t.initiate for the server
+ */
+static status_t initiate_server(private_eap_md5_t *this, eap_payload_t **out)
+{
+	rng_t *rng;
+	eap_md5_header_t *req;
+
+	rng = lib->crypto->create_rng(lib->crypto, RNG_WEAK);
+	if (!rng)
+	{
+		return FAILED;
+	}
+	rng->allocate_bytes(rng, CHALLENGE_LEN, &this->challenge);
+	rng->destroy(rng);
+
+	req = alloca(PAYLOAD_LEN);
+	req->length = htons(PAYLOAD_LEN);
+	req->code = EAP_REQUEST;
+	req->identifier = this->identifier;
+	req->type = EAP_MD5;
+	req->value_size = this->challenge.len;
+	memcpy(req->value, this->challenge.ptr, this->challenge.len);
+
+	*out = eap_payload_create_data(chunk_create((void*)req, PAYLOAD_LEN));
+	return NEED_MORE;
+}
+
+/**
+ * Implementation of eap_method_t.process for the peer
+ */
+static status_t process_peer(private_eap_md5_t *this,
+							 eap_payload_t *in, eap_payload_t **out)
+{
+	chunk_t response;
+	chunk_t data;
+	eap_md5_header_t *req;
+
+	this->identifier = in->get_identifier(in);
+	data = in->get_data(in);
+	this->challenge = chunk_clone(chunk_skip(data, 6));
+	if (data.len < 6 || this->challenge.len < *(data.ptr + 5))
+	{
+		DBG1(DBG_IKE, "received invalid EAP-MD5 message");
+		return FAILED;
+	}
+	if (hash_challenge(this, &response, this->peer, this->server) != SUCCESS)
+	{
+		return FAILED;
+	}
+	req = alloca(PAYLOAD_LEN);
+	req->length = htons(PAYLOAD_LEN);
+	req->code = EAP_RESPONSE;
+	req->identifier = this->identifier;
+	req->type = EAP_MD5;
+	req->value_size = response.len;
+	memcpy(req->value, response.ptr, response.len);
+	chunk_free(&response);
+
+	*out = eap_payload_create_data(chunk_create((void*)req, PAYLOAD_LEN));
+	return NEED_MORE;
+}
+
+/**
+ * Implementation of eap_method_t.process for the server
+ */
+static status_t process_server(private_eap_md5_t *this,
+							   eap_payload_t *in, eap_payload_t **out)
+{
+	chunk_t response, expected;
+	chunk_t data;
+
+	if (this->identifier != in->get_identifier(in))
+	{
+		DBG1(DBG_IKE, "received invalid EAP-MD5 message");
+		return FAILED;
+	}
+	if (hash_challenge(this, &expected, this->server, this->peer) != SUCCESS)
+	{
+		return FAILED;
+	}
+	data = in->get_data(in);
+	response = chunk_skip(data, 6);
+
+	if (response.len < expected.len ||
+		!memeq(response.ptr, expected.ptr, expected.len))
+	{
+		chunk_free(&expected);
+		DBG1(DBG_IKE, "EAP-MD5 verification failed");
+		return FAILED;
+	}
+	chunk_free(&expected);
+	return SUCCESS;
+}
+
+/**
+ * Implementation of eap_method_t.get_type.
+ */
+static eap_type_t get_type(private_eap_md5_t *this, u_int32_t *vendor)
+{
+	*vendor = 0;
+	return EAP_MD5;
+}
+
+/**
+ * Implementation of eap_method_t.get_msk.
+ */
+static status_t get_msk(private_eap_md5_t *this, chunk_t *msk)
+{
+	return FAILED;
+}
+
+/**
+ * Implementation of eap_method_t.is_mutual.
+ */
+static bool is_mutual(private_eap_md5_t *this)
+{
+	return FALSE;
+}
+
+/**
+ * Implementation of eap_method_t.destroy.
+ */
+static void destroy(private_eap_md5_t *this)
+{
+	this->peer->destroy(this->peer);
+	this->server->destroy(this->server);
+	chunk_free(&this->challenge);
+	free(this);
+}
+
+/**
+ * Generic constructor
+ */
+static private_eap_md5_t *eap_md5_create_generic(identification_t *server,
+												 identification_t *peer)
+{
+	private_eap_md5_t *this = malloc_thing(private_eap_md5_t);
+
+	this->public.eap_method_interface.initiate = NULL;
+	this->public.eap_method_interface.process = NULL;
+	this->public.eap_method_interface.get_type = (eap_type_t(*)(eap_method_t*,u_int32_t*))get_type;
+	this->public.eap_method_interface.is_mutual = (bool(*)(eap_method_t*))is_mutual;
+	this->public.eap_method_interface.get_msk = (status_t(*)(eap_method_t*,chunk_t*))get_msk;
+	this->public.eap_method_interface.destroy = (void(*)(eap_method_t*))destroy;
+
+	/* private data */
+	this->peer = peer->clone(peer);
+	this->server = server->clone(server);
+	this->challenge = chunk_empty;
+	this->identifier = 0;
+
+	return this;
+}
+
+/*
+ * see header
+ */
+eap_md5_t *eap_md5_create_server(identification_t *server, identification_t *peer)
+{
+	private_eap_md5_t *this = eap_md5_create_generic(server, peer);
+
+	this->public.eap_method_interface.initiate = (status_t(*)(eap_method_t*,eap_payload_t**))initiate_server;
+	this->public.eap_method_interface.process = (status_t(*)(eap_method_t*,eap_payload_t*,eap_payload_t**))process_server;
+
+	/* generate a non-zero identifier */
+	do {
+		this->identifier = random();
+	} while (!this->identifier);
+
+	return &this->public;
+}
+
+/*
+ * see header
+ */
+eap_md5_t *eap_md5_create_peer(identification_t *server, identification_t *peer)
+{
+	private_eap_md5_t *this = eap_md5_create_generic(server, peer);
+
+	this->public.eap_method_interface.initiate = (status_t(*)(eap_method_t*,eap_payload_t**))initiate_peer;
+	this->public.eap_method_interface.process = (status_t(*)(eap_method_t*,eap_payload_t*,eap_payload_t**))process_peer;
+
+	return &this->public;
+}
+
diff --git a/src/libcharon/plugins/eap_md5/eap_md5.h b/src/libcharon/plugins/eap_md5/eap_md5.h
new file mode 100644
index 000000000..3cff0dd79
--- /dev/null
+++ b/src/libcharon/plugins/eap_md5/eap_md5.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2008 Martin Willi
+ * Hochschule fuer Technik Rapperswil
+ *
+ * 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 eap_md5_i eap_md5
+ * @{ @ingroup eap_md5
+ */
+
+#ifndef EAP_MD5_H_
+#define EAP_MD5_H_
+
+typedef struct eap_md5_t eap_md5_t;
+
+#include <sa/authenticators/eap/eap_method.h>
+
+/**
+ * Implementation of the eap_method_t interface using EAP-MD5 (CHAP).
+ */
+struct eap_md5_t {
+
+	/**
+	 * Implemented eap_method_t interface.
+	 */
+	eap_method_t eap_method_interface;
+};
+
+/**
+ * Creates the EAP method EAP-MD5 acting as server.
+ *
+ * @param server	ID of the EAP server
+ * @param peer		ID of the EAP client
+ * @return			eap_md5_t object
+ */
+eap_md5_t *eap_md5_create_server(identification_t *server, identification_t *peer);
+
+/**
+ * Creates the EAP method EAP-MD5 acting as peer.
+ *
+ * @param server	ID of the EAP server
+ * @param peer		ID of the EAP client
+ * @return			eap_md5_t object
+ */
+eap_md5_t *eap_md5_create_peer(identification_t *server, identification_t *peer);
+
+#endif /** EAP_MD5_H_ @}*/
diff --git a/src/libcharon/plugins/eap_md5/eap_md5_plugin.c b/src/libcharon/plugins/eap_md5/eap_md5_plugin.c
new file mode 100644
index 000000000..e716dc6e8
--- /dev/null
+++ b/src/libcharon/plugins/eap_md5/eap_md5_plugin.c
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2008 Martin Willi
+ * Hochschule fuer Technik Rapperswil
+ *
+ * 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 "eap_md5_plugin.h"
+
+#include "eap_md5.h"
+
+#include <daemon.h>
+
+/**
+ * Implementation of plugin_t.destroy
+ */
+static void destroy(eap_md5_plugin_t *this)
+{
+	charon->eap->remove_method(charon->eap,
+							   (eap_constructor_t)eap_md5_create_server);
+	charon->eap->remove_method(charon->eap,
+							   (eap_constructor_t)eap_md5_create_peer);
+	free(this);
+}
+
+/*
+ * see header file
+ */
+plugin_t *eap_md5_plugin_create()
+{
+	eap_md5_plugin_t *this = malloc_thing(eap_md5_plugin_t);
+
+	this->plugin.destroy = (void(*)(plugin_t*))destroy;
+
+	charon->eap->add_method(charon->eap, EAP_MD5, 0, EAP_SERVER,
+							(eap_constructor_t)eap_md5_create_server);
+	charon->eap->add_method(charon->eap, EAP_MD5, 0, EAP_PEER,
+							(eap_constructor_t)eap_md5_create_peer);
+
+	return &this->plugin;
+}
+
diff --git a/src/libcharon/plugins/eap_md5/eap_md5_plugin.h b/src/libcharon/plugins/eap_md5/eap_md5_plugin.h
new file mode 100644
index 000000000..e5e1a6e94
--- /dev/null
+++ b/src/libcharon/plugins/eap_md5/eap_md5_plugin.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2008 Martin Willi
+ * Hochschule fuer Technik Rapperswil
+ *
+ * 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 eap_md5 eap_md5
+ * @ingroup cplugins
+ *
+ * @defgroup eap_md5_plugin eap_md5_plugin
+ * @{ @ingroup eap_md5
+ */
+
+#ifndef EAP_MD5_PLUGIN_H_
+#define EAP_MD5_PLUGIN_H_
+
+#include <plugins/plugin.h>
+
+typedef struct eap_md5_plugin_t eap_md5_plugin_t;
+
+/**
+ * EAP-MD5 plugin
+ */
+struct eap_md5_plugin_t {
+
+	/**
+	 * implements plugin interface
+	 */
+	plugin_t plugin;
+};
+
+#endif /** EAP_MD5_PLUGIN_H_ @}*/