/* 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 <http://www.gnu.org/licenses/>. */ #include "testutil.hpp" #include "testutil_unity.hpp" #include <unistd.h> #include <grp.h> SETUP_TEARDOWN_TESTCONTEXT static void bounce_fail (void *server_, void *client_) { const char *content = "12345678ABCDEFGH12345678abcdefgh"; char buffer[32]; // Send message from client to server send_string_expect_success (client_, content, ZMQ_SNDMORE); send_string_expect_success (client_, content, 0); // Receive message at server side (should not succeed) int timeout = SETTLE_TIME; TEST_ASSERT_SUCCESS_ERRNO ( zmq_setsockopt (server_, ZMQ_RCVTIMEO, &timeout, sizeof (int))); TEST_ASSERT_FAILURE_ERRNO (EAGAIN, zmq_recv (server_, buffer, 32, 0)); // Send message from server to client to test other direction TEST_ASSERT_SUCCESS_ERRNO ( zmq_setsockopt (server_, ZMQ_SNDTIMEO, &timeout, sizeof (int))); TEST_ASSERT_FAILURE_ERRNO (EAGAIN, zmq_send (server_, content, 32, ZMQ_SNDMORE)); } template <class T> static void run_test (int opt_, T optval_, int expected_error_, int bounce_test_) { void *sb = test_context_socket (ZMQ_DEALER); if (opt_) { const int rc = zmq_setsockopt (sb, opt_, &optval_, sizeof (optval_)); if (expected_error_) { TEST_ASSERT_FAILURE_ERRNO (expected_error_, rc); } else { TEST_ASSERT_SUCCESS_ERRNO (rc); } } void *sc = test_context_socket (ZMQ_DEALER); // If a test fails, don't hang for too long int timeout = 2500; TEST_ASSERT_SUCCESS_ERRNO ( zmq_setsockopt (sb, ZMQ_RCVTIMEO, &timeout, sizeof (int))); TEST_ASSERT_SUCCESS_ERRNO ( zmq_setsockopt (sb, ZMQ_SNDTIMEO, &timeout, sizeof (int))); TEST_ASSERT_SUCCESS_ERRNO ( zmq_setsockopt (sc, ZMQ_RCVTIMEO, &timeout, sizeof (int))); TEST_ASSERT_SUCCESS_ERRNO ( zmq_setsockopt (sc, ZMQ_SNDTIMEO, &timeout, sizeof (int))); int interval = -1; TEST_ASSERT_SUCCESS_ERRNO ( zmq_setsockopt (sc, ZMQ_RECONNECT_IVL, &interval, sizeof (int))); if (bounce_test_) { const char *endpoint = "ipc://test_filter_ipc.sock"; TEST_ASSERT_SUCCESS_ERRNO (zmq_bind (sb, endpoint)); TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (sc, endpoint)); if (bounce_test_ > 0) bounce (sb, sc); else bounce_fail (sb, sc); } // TODO only use zero linger when bounce_test_ < 0? test_context_socket_close_zero_linger (sc); test_context_socket_close_zero_linger (sb); } #if defined ZMQ_HAVE_SO_PEERCRED || defined ZMQ_HAVE_LOCAL_PEERCRED gid_t group, supgroup, notgroup; void init_groups () { // Get the group and supplemental groups of the process owner gid_t groups[100]; int ngroups = getgroups (100, groups); TEST_ASSERT_NOT_EQUAL (-1, ngroups); group = getgid (); supgroup = group; notgroup = group + 1; for (int i = 0; i < ngroups; i++) { if (supgroup == group && group != groups[i]) { if (getgrgid (groups[i])) supgroup = groups[i]; } if (notgroup <= groups[i]) notgroup = groups[i] + 1; } } #endif void test_no_filters () { run_test<int> (0, 0, 0, 1); } #if defined ZMQ_HAVE_SO_PEERCRED || defined ZMQ_HAVE_LOCAL_PEERCRED void test_filter_with_process_owner_uid () { run_test<uid_t> (ZMQ_IPC_FILTER_UID, getuid (), 0, 1); } void test_filter_with_possibly_nonexistent_uid () { run_test<uid_t> (ZMQ_IPC_FILTER_UID, getuid () + 1, 0, -1); } void test_filter_with_process_owner_gid () { run_test<gid_t> (ZMQ_IPC_FILTER_GID, group, 0, 1); } void test_filter_with_supplemental_process_owner_gid () { run_test<gid_t> (ZMQ_IPC_FILTER_GID, supgroup, 0, 1); } void test_filter_with_possibly_nonexistent_gid () { run_test<gid_t> (ZMQ_IPC_FILTER_GID, notgroup, 0, -1); } #if defined ZMQ_HAVE_SO_PEERCRED void test_filter_with_current_process_pid () { run_test<pid_t> (ZMQ_IPC_FILTER_PID, getpid (), 0, 1); } void test_filter_with_possibly_nonexistent_pid () { run_test<pid_t> (ZMQ_IPC_FILTER_PID, getpid () + 1, 0, -1); } #else void test_filter_with_pid_fails () { // Setup of PID filter should fail with operation not supported error // TODO EINVAL is not ENOTSUP (!) run_test<pid_t> (ZMQ_IPC_FILTER_PID, getpid (), EINVAL, 0); } #endif #else void test_filter_with_zero_uid_fails () { run_test<uid_t> (ZMQ_IPC_FILTER_UID, 0, EINVAL, 0); } void test_filter_with_zero_gid_fails () { run_test<gid_t> (ZMQ_IPC_FILTER_GID, 0, EINVAL, 0); } void test_filter_with_zero_pid_fails () { run_test<pid_t> (ZMQ_IPC_FILTER_PID, 0, EINVAL, 0); } #endif // defined ZMQ_HAVE_SO_PEERCRED || defined ZMQ_HAVE_LOCAL_PEERCRED int main (void) { #if !defined(ZMQ_HAVE_WINDOWS) setup_test_environment (); #if defined ZMQ_HAVE_SO_PEERCRED || defined ZMQ_HAVE_LOCAL_PEERCRED init_groups (); #endif UNITY_BEGIN (); RUN_TEST (test_no_filters); #if defined ZMQ_HAVE_SO_PEERCRED || defined ZMQ_HAVE_LOCAL_PEERCRED RUN_TEST (test_filter_with_process_owner_uid); RUN_TEST (test_filter_with_possibly_nonexistent_uid); RUN_TEST (test_filter_with_process_owner_gid); RUN_TEST (test_filter_with_supplemental_process_owner_gid); RUN_TEST (test_filter_with_possibly_nonexistent_gid); #if defined ZMQ_HAVE_SO_PEERCRED RUN_TEST (test_filter_with_current_process_pid); RUN_TEST (test_filter_with_possibly_nonexistent_pid); #else RUN_TEST (test_filter_with_pid_fails); #endif #else RUN_TEST (test_filter_with_zero_uid_fails); RUN_TEST (test_filter_with_zero_gid_fails); RUN_TEST (test_filter_with_zero_pid_fails); #endif // defined ZMQ_HAVE_SO_PEERCRED || defined ZMQ_HAVE_LOCAL_PEERCRED return UNITY_END (); #else return 0; #endif }