fuzz: Added PB-TNC fuzzer

laforge/swu
Andreas Steffen 5 years ago
parent cd6e45817e
commit 75181f4836
  1. 2
      configure.ac
  2. 1
      fuzz/.gitignore
  3. 12
      fuzz/Makefile.am
  4. 78
      fuzz/fuzz_pb_tnc.c
  5. 2
      scripts/test.sh

@ -431,7 +431,7 @@ if test x$eap_radius = xtrue -o x$radattr = xtrue -o x$tnc_pdp = xtrue; then
radius=true;
fi
if test x$tnc_imc = xtrue -o x$tnc_imv = xtrue -o x$tnccs_11 = xtrue -o x$tnccs_11 = xtrue -o x$tnccs_dynamic = xtrue -o x$eap_tnc = xtrue; then
if test x$tnc_imc = xtrue -o x$tnc_imv = xtrue -o x$tnccs_11 = xtrue -o x$tnccs_20 = xtrue -o x$tnccs_dynamic = xtrue -o x$eap_tnc = xtrue; then
tnc_tnccs=true;
fi

1
fuzz/.gitignore vendored

@ -1,3 +1,4 @@
fuzz_certs
fuzz_crls
fuzz_pa_tnc
fuzz_pb_tnc

@ -3,6 +3,8 @@ AM_CPPFLAGS = @CPPFLAGS@ \
-I$(top_srcdir)/src/libimcv \
-I$(top_srcdir)/src/libtncif \
-I$(top_srcdir)/src/libtpmtss \
-I$(top_srcdir)/src/libtnccs \
-I$(top_srcdir)/src/libtnccs/plugins/tnccs_20 \
-DPLUGINDIR=\""$(abs_top_builddir)/src/libstrongswan/plugins\"" \
-DPLUGINS="\"${fuzz_plugins}\""
@ -17,7 +19,12 @@ pa_tnc_ldflags = \
$(top_builddir)/src/libtpmtss/.libs/libtpmtss.a \
$(fuzz_ldflags)
FUZZ_TARGETS=fuzz_certs fuzz_crls fuzz_pa_tnc
pb_tnc_ldflags = \
$(top_builddir)/src/libtnccs/.libs/libtnccs.a \
$(top_builddir)/src/libtncif/.libs/libtncif.a \
$(fuzz_ldflags)
FUZZ_TARGETS=fuzz_certs fuzz_crls fuzz_pa_tnc fuzz_pb_tnc
all-local: $(FUZZ_TARGETS)
@ -32,6 +39,9 @@ fuzz_crls: fuzz_crls.c ${libfuzzer}
fuzz_pa_tnc: fuzz_pa_tnc.c ${libfuzzer}
$(CC) $(AM_CPPFLAGS) $(CFLAGS) -o $@ $< $(pa_tnc_ldflags)
fuzz_pb_tnc: fuzz_pb_tnc.c ${libfuzzer}
$(CC) $(AM_CPPFLAGS) $(CFLAGS) -o $@ $< $(pb_tnc_ldflags)
noinst_LIBRARIES = libFuzzerLocal.a
libFuzzerLocal_a_SOURCES = libFuzzerLocal.c
libFuzzerLocal_a_LIBADD = $(top_builddir)/src/libstrongswan/libstrongswan.la

@ -0,0 +1,78 @@
/*
* 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;
}

@ -127,7 +127,7 @@ osx)
fuzzing)
CFLAGS="$CFLAGS -DNO_CHECK_MEMWIPE"
CONFIG="--enable-fuzzing --enable-static --disable-shared --disable-scripts
--enable-imc-test"
--enable-imc-test --enable-tnccs-20"
# don't run any of the unit tests
export TESTS_RUNNERS=
# prepare corpora

Loading…
Cancel
Save