/*
Copyright (c) 2007-2016 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 .
*/
#include "testutil.hpp"
static void bounce_fail (void *server, void *client)
{
const char *content = "12345678ABCDEFGH12345678abcdefgh";
char buffer [32];
// Send message from client to server
int rc = zmq_send (client, content, 32, ZMQ_SNDMORE);
assert (rc == 32);
rc = zmq_send (client, content, 32, 0);
assert (rc == 32);
// Receive message at server side (should not succeed)
int timeout = 250;
rc = zmq_setsockopt (server, ZMQ_RCVTIMEO, &timeout, sizeof (int));
assert (rc == 0);
rc = zmq_recv (server, buffer, 32, 0);
assert (rc == -1);
assert (zmq_errno () == EAGAIN);
// Send message from server to client to test other direction
rc = zmq_setsockopt (server, ZMQ_SNDTIMEO, &timeout, sizeof (int));
assert (rc == 0);
rc = zmq_send (server, content, 32, ZMQ_SNDMORE);
assert (rc == -1);
assert (zmq_errno () == EAGAIN);
}
template
static void run_test (int opt, T optval, int expected_error, int bounce_test)
{
int rc;
void *ctx = zmq_ctx_new ();
assert (ctx);
void *sb = zmq_socket (ctx, ZMQ_DEALER);
assert (sb);
if (opt) {
rc = zmq_setsockopt(sb, opt, &optval, sizeof (optval));
if (expected_error) {
assert (rc == -1);
assert (zmq_errno () == expected_error);
}
else
assert (rc == 0);
}
void *sc = zmq_socket (ctx, ZMQ_DEALER);
assert (sc);
// If a test fails, don't hang for too long
int timeout = 2500;
rc = zmq_setsockopt (sb, ZMQ_RCVTIMEO, &timeout, sizeof (int));
assert (rc == 0);
rc = zmq_setsockopt (sb, ZMQ_SNDTIMEO, &timeout, sizeof (int));
assert (rc == 0);
rc = zmq_setsockopt (sc, ZMQ_RCVTIMEO, &timeout, sizeof (int));
assert (rc == 0);
rc = zmq_setsockopt (sc, ZMQ_SNDTIMEO, &timeout, sizeof (int));
assert (rc == 0);
int interval = -1;
rc = zmq_setsockopt (sc, ZMQ_RECONNECT_IVL, &interval, sizeof (int));
assert (rc == 0);
if (bounce_test) {
const char* endpoint = "ipc://test_filter_ipc.sock";
int rc = zmq_bind (sb, endpoint);
assert (rc == 0);
rc = zmq_connect (sc, endpoint);
assert (rc == 0);
if (bounce_test > 0)
bounce (sb, sc);
else
bounce_fail (sb, sc);
}
close_zero_linger (sc);
close_zero_linger (sb);
rc = zmq_ctx_term (ctx);
assert (rc == 0);
}
int main (void)
{
#if !defined (ZMQ_HAVE_WINDOWS)
setup_test_environment();
// No filters
run_test (0, 0, 0, 1);
#if defined ZMQ_HAVE_SO_PEERCRED || defined ZMQ_HAVE_LOCAL_PEERCRED
// Get the group and supplimental groups of the process owner
gid_t groups[100];
int ngroups = getgroups(100, groups);
assert (ngroups != -1);
gid_t group = getgid(), supgroup = group, notgroup = group + 1;
for (int i = 0; i < ngroups; i++) {
if (supgroup == group && group != groups[i])
supgroup = groups[i];
if (notgroup <= groups[i])
notgroup = groups[i] + 1;
}
// Test filter with UID of process owner
run_test (ZMQ_IPC_FILTER_UID, getuid(), 0, 1);
// Test filter with UID of another (possibly non-existent) user
run_test (ZMQ_IPC_FILTER_UID, getuid() + 1, 0, -1);
// Test filter with GID of process owner
run_test (ZMQ_IPC_FILTER_GID, group, 0, 1);
// Test filter with supplimental group of process owner
run_test (ZMQ_IPC_FILTER_GID, supgroup, 0, 1);
// Test filter with GID of another (possibly non-existent) group
run_test (ZMQ_IPC_FILTER_GID, notgroup, 0, -1);
# if defined ZMQ_HAVE_SO_PEERCRED
// Test filter with PID of current process
run_test (ZMQ_IPC_FILTER_PID, getpid(), 0, 1);
// Test filter with PID of another (possibly non-existent) process
run_test (ZMQ_IPC_FILTER_PID, getpid() + 1, 0, -1);
# else
// Setup of PID filter should fail with operation not supported error
run_test (ZMQ_IPC_FILTER_PID, getpid(), EINVAL, 0);
# endif
#else
run_test (ZMQ_IPC_FILTER_UID, 0, EINVAL, 0);
run_test (ZMQ_IPC_FILTER_GID, 0, EINVAL, 0);
run_test (ZMQ_IPC_FILTER_PID, 0, EINVAL, 0);
#endif // defined ZMQ_HAVE_SO_PEERCRED || defined ZMQ_HAVE_LOCAL_PEERCRED
#endif
return 0 ;
}