mirror of
https://github.com/zeromq/libzmq.git
synced 2024-12-14 02:57:47 +01:00
e95e57d385
Solution: move all corpora to the zeromq/libzmq-fuzz-corpora repository for easier handling, and to avoid inflating the size of zeromq/libzmq. Clone it for the CI on the fly.
114 lines
3.9 KiB
C++
114 lines
3.9 KiB
C++
/*
|
|
Copyright (c) 2020 Contributors as noted in the AUTHORS file
|
|
|
|
This file is part of libzmq, the ZeroMQ core engine in C++.
|
|
|
|
libzmq is free software; you can redistribute it and/or modify it under
|
|
the terms of the GNU Lesser General Public License (LGPL) as published
|
|
by the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
As a special exception, the Contributors give you permission to link
|
|
this library with independent modules to produce an executable,
|
|
regardless of the license terms of these independent modules, and to
|
|
copy and distribute the resulting executable under terms of your choice,
|
|
provided that you also meet, for each linked independent module, the
|
|
terms and conditions of the license of that module. An independent
|
|
module is a module which is not derived from or based on this library.
|
|
If you modify this library, you must extend this exception to your
|
|
version of the library.
|
|
|
|
libzmq 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 Lesser General Public
|
|
License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifdef ZMQ_USE_FUZZING_ENGINE
|
|
#include <fuzzer/FuzzedDataProvider.h>
|
|
#endif
|
|
|
|
#include "testutil.hpp"
|
|
#include "testutil_unity.hpp"
|
|
|
|
// Test that the ZMTP engine handles invalid handshake when binding
|
|
// https://rfc.zeromq.org/spec/37/
|
|
extern "C" int LLVMFuzzerTestOneInput (const uint8_t *data, size_t size)
|
|
{
|
|
setup_test_context ();
|
|
char my_endpoint[MAX_SOCKET_STRING];
|
|
void *server = test_context_socket (ZMQ_PUB);
|
|
// As per API by default there's no limit to the size of a message,
|
|
// but the sanitizer allocator will barf over a gig or so
|
|
int64_t max_msg_size = 64 * 1024 * 1024;
|
|
TEST_ASSERT_SUCCESS_ERRNO (
|
|
zmq_setsockopt (server, ZMQ_MAXMSGSIZE, &max_msg_size, sizeof (int64_t)));
|
|
bind_loopback_ipv4 (server, my_endpoint, sizeof (my_endpoint));
|
|
fd_t client = connect_socket (my_endpoint);
|
|
|
|
void *client_good = test_context_socket (ZMQ_SUB);
|
|
TEST_ASSERT_SUCCESS_ERRNO (
|
|
zmq_setsockopt (client_good, ZMQ_SUBSCRIBE, "", 0));
|
|
TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (client_good, my_endpoint));
|
|
|
|
// If there is not enough data for a full greeting, just send what we can
|
|
// Otherwise send greeting first, as expected by the protocol
|
|
uint8_t buf[64];
|
|
if (size >= 64) {
|
|
send (client, (void *) data, 64, MSG_NOSIGNAL);
|
|
data += 64;
|
|
size -= 64;
|
|
}
|
|
recv (client, buf, 64, 0);
|
|
msleep (250);
|
|
for (ssize_t sent = 0; size > 0 && (sent != -1 || errno == EINTR);
|
|
size -= sent > 0 ? sent : 0, data += sent > 0 ? sent : 0)
|
|
sent = send (client, (const char *) data, size, MSG_NOSIGNAL);
|
|
msleep (250);
|
|
|
|
TEST_ASSERT_EQUAL_INT (6, zmq_send_const (server, "HELLO", 6, 0));
|
|
TEST_ASSERT_EQUAL_INT (6, zmq_recv (client_good, buf, 6, 0));
|
|
|
|
close (client);
|
|
test_context_socket_close_zero_linger (client_good);
|
|
test_context_socket_close_zero_linger (server);
|
|
teardown_test_context ();
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifndef ZMQ_USE_FUZZING_ENGINE
|
|
void test_bind_null_fuzzer ()
|
|
{
|
|
uint8_t **data;
|
|
size_t *len, num_cases = 0;
|
|
if (fuzzer_corpus_encode (
|
|
"tests/libzmq-fuzz-corpora/test_bind_null_fuzzer_seed_corpus", &data,
|
|
&len, &num_cases)
|
|
!= 0)
|
|
exit (77);
|
|
|
|
while (num_cases-- > 0) {
|
|
TEST_ASSERT_SUCCESS_ERRNO (
|
|
LLVMFuzzerTestOneInput (data[num_cases], len[num_cases]));
|
|
free (data[num_cases]);
|
|
}
|
|
|
|
free (data);
|
|
free (len);
|
|
}
|
|
|
|
int main (int argc, char **argv)
|
|
{
|
|
setup_test_environment ();
|
|
|
|
UNITY_BEGIN ();
|
|
RUN_TEST (test_bind_null_fuzzer);
|
|
|
|
return UNITY_END ();
|
|
}
|
|
#endif
|