/*

 * Copyright (C) 2018 Andreas Steffen

 *

 * Copyright (C) secunet Security Networks 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 <library.h>

#include <imcv.h>

#include <pa_tnc/pa_tnc_msg.h>

#include <ietf/ietf_attr_pa_tnc_error.h>

#include <utils/debug.h>

int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len)

{

  pa_tnc_msg_t *msg;

  pa_tnc_attr_t *attr;

  ietf_attr_pa_tnc_error_t *error;

  linked_list_t *non_fatal_types;

  enumerator_t *enumerator;

  chunk_t chunk;

  dbg_default_set_level(-1);

  library_init(NULL, "fuzz_pa_tnc");

  plugin_loader_add_plugindirs(PLUGINDIR, PLUGINS);

  if (!lib->plugins->load(lib->plugins, PLUGINS))

  {

    return 1;

  }

  libimcv_init(FALSE);

  chunk = chunk_create((u_char*)buf, len);

  /* Parse incoming PA-TNC message */

  msg = pa_tnc_msg_create_from_data(chunk);

  if (msg->process(msg) == SUCCESS)

  {

    non_fatal_types = linked_list_create();

    msg->process_ietf_std_errors(msg, non_fatal_types);

    non_fatal_types->destroy(non_fatal_types);

  }

  /* enumerate correctly decoded attributes */

  enumerator = msg->create_attribute_enumerator(msg);

  while (enumerator->enumerate(enumerator, &attr))

  {

    attr->get_noskip_flag(attr);

  }

  enumerator->destroy(enumerator);

  /* enumerate errors detected while parsing PA-TNC message and attributes */

  enumerator = msg->create_error_enumerator(msg);

  while (enumerator->enumerate(enumerator, &attr))

  {

    error = (ietf_attr_pa_tnc_error_t*)attr;

    error->get_error_code(error);

  }

  enumerator->destroy(enumerator);

  msg->destroy(msg);

  libimcv_deinit();

  lib->plugins->unload(lib->plugins);

  library_deinit();

  return 0;

}