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strongswan/fuzz/fuzz_pb_tnc.c

78 lines
2.2 KiB

/*
* Copyright (C) 2018 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 <library.h>
#include <batch/pb_tnc_batch.h>
#include <messages/ietf/pb_error_msg.h>
#include <state_machine/pb_tnc_state_machine.h>
#include <utils/debug.h>
int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len)
{
pb_tnc_batch_t *batch;
pb_tnc_state_machine_t *state;
pb_tnc_msg_t *msg;
pb_error_msg_t *error;
enumerator_t *enumerator;
bool from_server;
chunk_t chunk;
dbg_default_set_level(-1);
library_init(NULL, "fuzz_pb_tnc");
plugin_loader_add_plugindirs(PLUGINDIR, PLUGINS);
if (!lib->plugins->load(lib->plugins, PLUGINS))
{
return 1;
}
chunk = chunk_create((u_char*)buf, len);
INIT(state,
.receive_batch = (void*)return_true,
.set_empty_cdata = (void*)nop,
);
/* parse incoming PB-TNC batch */
batch = pb_tnc_batch_create_from_data(chunk);
if (batch->process_header(batch, TRUE, FALSE, &from_server) == SUCCESS ||
batch->process_header(batch, TRUE, TRUE, &from_server) == SUCCESS)
{
batch->process(batch, state);
}
/* enumerate correctly decoded PB-TNC messages */
enumerator = batch->create_msg_enumerator(batch);
while (enumerator->enumerate(enumerator, &msg))
{
msg->get_type(msg);
}
enumerator->destroy(enumerator);
/* enumerate errors detected while parsing PB-TNC batch and messages */
enumerator = batch->create_error_enumerator(batch);
while (enumerator->enumerate(enumerator, &msg))
{
error = (pb_error_msg_t*)msg;
error->get_error_code(error);
}
enumerator->destroy(enumerator);
batch->destroy(batch);
free(state);
lib->plugins->unload(lib->plugins);
library_deinit();
return 0;
}