diff options
Diffstat (limited to 'src/libcharon/plugins/tnccs_dynamic')
5 files changed, 282 insertions, 0 deletions
diff --git a/src/libcharon/plugins/tnccs_dynamic/Makefile.am b/src/libcharon/plugins/tnccs_dynamic/Makefile.am new file mode 100644 index 000000000..9a81d065f --- /dev/null +++ b/src/libcharon/plugins/tnccs_dynamic/Makefile.am @@ -0,0 +1,17 @@ + +INCLUDES = -I$(top_srcdir)/src/libstrongswan -I$(top_srcdir)/src/libhydra \ + -I$(top_srcdir)/src/libcharon -I$(top_srcdir)/src/libtls + +AM_CFLAGS = -rdynamic + +if MONOLITHIC +noinst_LTLIBRARIES = libstrongswan-tnccs-dynamic.la +else +plugin_LTLIBRARIES = libstrongswan-tnccs-dynamic.la +libstrongswan_tnccs_dynamic_la_LIBADD = $(top_builddir)/src/libtls/libtls.la +endif + +libstrongswan_tnccs_dynamic_la_SOURCES = \ + tnccs_dynamic_plugin.h tnccs_dynamic_plugin.c tnccs_dynamic.h tnccs_dynamic.c + +libstrongswan_tnccs_dynamic_la_LDFLAGS = -module -avoid-version diff --git a/src/libcharon/plugins/tnccs_dynamic/tnccs_dynamic.c b/src/libcharon/plugins/tnccs_dynamic/tnccs_dynamic.c new file mode 100644 index 000000000..f7ef5d98a --- /dev/null +++ b/src/libcharon/plugins/tnccs_dynamic/tnccs_dynamic.c @@ -0,0 +1,140 @@ +/* + * Copyright (C) 2011 Andreas Steffen + * HSR 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 "tnccs_dynamic.h" + +#include <tnc/tnccs/tnccs.h> +#include <daemon.h> + +typedef struct private_tnccs_dynamic_t private_tnccs_dynamic_t; + +/** + * Private data of a tnccs_dynamic_t object. + */ +struct private_tnccs_dynamic_t { + + /** + * Public tls_t interface. + */ + tls_t public; + + /** + * Detected TNC IF-TNCCS stack + */ + tls_t *tls; +}; + +tnccs_type_t determine_tnccs_protocol(char version) +{ + switch (version) + { + case '\t': + case '\n': + case '\r': + case ' ': + case '<': + return TNCCS_1_1; + case 0x00: + return TNCCS_SOH; + case 0x02: + return TNCCS_2_0; + default: + return TNCCS_UNKNOWN; + } +} + +METHOD(tls_t, process, status_t, + private_tnccs_dynamic_t *this, void *buf, size_t buflen) +{ + tnccs_type_t type; + + if (!this->tls) + { + if (buflen == 0) + { + return FAILED; + } + type = determine_tnccs_protocol(*(char*)buf); + DBG1(DBG_TNC, "%N protocol detected dynamically", + tnccs_type_names, type); + this->tls = (tls_t*)charon->tnccs->create_instance(charon->tnccs, + type, TRUE); + if (!this->tls) + { + DBG1(DBG_TNC, "N% protocol not supported", tnccs_type_names, type); + return FAILED; + } + } + return this->tls->process(this->tls, buf, buflen); +} + +METHOD(tls_t, build, status_t, + private_tnccs_dynamic_t *this, void *buf, size_t *buflen, size_t *msglen) +{ + return this->tls->build(this->tls, buf, buflen, msglen); +} + +METHOD(tls_t, is_server, bool, + private_tnccs_dynamic_t *this) +{ + return TRUE; +} + +METHOD(tls_t, get_purpose, tls_purpose_t, + private_tnccs_dynamic_t *this) +{ + return TLS_PURPOSE_EAP_TNC; +} + +METHOD(tls_t, is_complete, bool, + private_tnccs_dynamic_t *this) +{ + return this->tls ? this->tls->is_complete(this->tls) : FALSE; +} + +METHOD(tls_t, get_eap_msk, chunk_t, + private_tnccs_dynamic_t *this) +{ + return chunk_empty; +} + +METHOD(tls_t, destroy, void, + private_tnccs_dynamic_t *this) +{ + DESTROY_IF(this->tls); + free(this); +} + +/** + * See header + */ +tls_t *tnccs_dynamic_create(bool is_server) +{ + private_tnccs_dynamic_t *this; + + INIT(this, + .public = { + .process = _process, + .build = _build, + .is_server = _is_server, + .get_purpose = _get_purpose, + .is_complete = _is_complete, + .get_eap_msk = _get_eap_msk, + .destroy = _destroy, + }, + ); + + return &this->public; +} diff --git a/src/libcharon/plugins/tnccs_dynamic/tnccs_dynamic.h b/src/libcharon/plugins/tnccs_dynamic/tnccs_dynamic.h new file mode 100644 index 000000000..42410b17f --- /dev/null +++ b/src/libcharon/plugins/tnccs_dynamic/tnccs_dynamic.h @@ -0,0 +1,36 @@ +/* + * Copyright (C) 2011 Andreas Steffen + * HSR 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 tnccs_dynamic_h tnccs_dynamic + * @{ @ingroup tnccs_dynamic + */ + +#ifndef TNCCS_DYNAMIC_H_ +#define TNCCS_DYNAMIC_H_ + +#include <library.h> + +#include <tls.h> + +/** + * Create an instance of a dynamic TNC IF-TNCCS protocol handler. + * + * @param is_server TRUE to act as TNC Server, FALSE for TNC Client + * @return dynamic TNC IF-TNCCS protocol stack + */ +tls_t *tnccs_dynamic_create(bool is_server); + +#endif /** TNCCS_DYNAMIC_H_ @}*/ diff --git a/src/libcharon/plugins/tnccs_dynamic/tnccs_dynamic_plugin.c b/src/libcharon/plugins/tnccs_dynamic/tnccs_dynamic_plugin.c new file mode 100644 index 000000000..dbbf222e0 --- /dev/null +++ b/src/libcharon/plugins/tnccs_dynamic/tnccs_dynamic_plugin.c @@ -0,0 +1,47 @@ +/* + * Copyright (C) 2011 Andreas Steffen + * HSR 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 "tnccs_dynamic_plugin.h" +#include "tnccs_dynamic.h" + +#include <daemon.h> + +METHOD(plugin_t, destroy, void, + tnccs_dynamic_plugin_t *this) +{ + charon->tnccs->remove_method(charon->tnccs, + (tnccs_constructor_t)tnccs_dynamic_create); + free(this); +} + +/* + * see header file + */ +plugin_t *tnccs_dynamic_plugin_create() +{ + tnccs_dynamic_plugin_t *this; + + INIT(this, + .plugin = { + .destroy = _destroy, + }, + ); + + charon->tnccs->add_method(charon->tnccs, TNCCS_DYNAMIC, + (tnccs_constructor_t)tnccs_dynamic_create); + + return &this->plugin; +} + diff --git a/src/libcharon/plugins/tnccs_dynamic/tnccs_dynamic_plugin.h b/src/libcharon/plugins/tnccs_dynamic/tnccs_dynamic_plugin.h new file mode 100644 index 000000000..b518e1278 --- /dev/null +++ b/src/libcharon/plugins/tnccs_dynamic/tnccs_dynamic_plugin.h @@ -0,0 +1,42 @@ +/* + * Copyright (C) 2011 Andreas Steffen + * HSR 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 tnccs_dynamic tnccs_dynamic + * @ingroup cplugins + * + * @defgroup tnccs_dynamic_plugin tnccs_dynamic_plugin + * @{ @ingroup tnccs_dynamic + */ + +#ifndef TNCCS_DYNAMIC_PLUGIN_H_ +#define TNCCS_DYNAMIC_PLUGIN_H_ + +#include <plugins/plugin.h> + +typedef struct tnccs_dynamic_plugin_t tnccs_dynamic_plugin_t; + +/** + * EAP-TNC plugin + */ +struct tnccs_dynamic_plugin_t { + + /** + * implements plugin interface + */ + plugin_t plugin; +}; + +#endif /** TNCCS_DYNAMIC_PLUGIN_H_ @}*/ |