/* Copyright (c) 2007-2017 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" #if defined (ZMQ_HAVE_WINDOWS) # include # include # include # define close closesocket #else # include # include # include # include #endif // We'll generate random test keys at startup static char client_public [41]; static char client_secret [41]; static char server_public [41]; static char server_secret [41]; #ifdef ZMQ_BUILD_DRAFT_API // Read one event off the monitor socket; return value and address // by reference, if not null, and event number by value. Returns -1 // in case of error. static int get_monitor_event (void *monitor, int *value, char **address) { // First frame in message contains event number and value zmq_msg_t msg; zmq_msg_init (&msg); if (zmq_msg_recv (&msg, monitor, 0) == -1) return -1; // Interruped, presumably assert (zmq_msg_more (&msg)); uint8_t *data = (uint8_t *) zmq_msg_data (&msg); uint16_t event = *(uint16_t *) (data); if (value) *value = *(uint32_t *) (data + 2); // Second frame in message contains event address zmq_msg_init (&msg); if (zmq_msg_recv (&msg, monitor, 0) == -1) return -1; // Interruped, presumably assert (!zmq_msg_more (&msg)); if (address) { uint8_t *data = (uint8_t *) zmq_msg_data (&msg); size_t size = zmq_msg_size (&msg); *address = (char *) malloc (size + 1); memcpy (*address, data, size); *address [size] = 0; } return event; } #endif // -------------------------------------------------------------------------- // This methods receives and validates ZAP requestes (allowing or denying // each client connection). static void zap_handler (void *handler) { // Process ZAP requests forever while (true) { char *version = s_recv (handler); if (!version) break; // Terminating char *sequence = s_recv (handler); char *domain = s_recv (handler); char *address = s_recv (handler); char *identity = s_recv (handler); char *mechanism = s_recv (handler); uint8_t client_key [32]; int size = zmq_recv (handler, client_key, 32, 0); assert (size == 32); char client_key_text [41]; zmq_z85_encode (client_key_text, client_key, 32); assert (streq (version, "1.0")); assert (streq (mechanism, "CURVE")); assert (streq (identity, "IDENT")); s_sendmore (handler, version); s_sendmore (handler, sequence); if (streq (client_key_text, client_public)) { s_sendmore (handler, "200"); s_sendmore (handler, "OK"); s_sendmore (handler, "anonymous"); s_send (handler, ""); } else { s_sendmore (handler, "400"); s_sendmore (handler, "Invalid client public key"); s_sendmore (handler, ""); s_send (handler, ""); } free (version); free (sequence); free (domain); free (address); free (identity); free (mechanism); } zmq_close (handler); } int main (void) { #ifndef ZMQ_HAVE_CURVE printf ("CURVE encryption not installed, skipping test\n"); return 0; #endif // Generate new keypairs for this test int rc = zmq_curve_keypair (client_public, client_secret); assert (rc == 0); rc = zmq_curve_keypair (server_public, server_secret); assert (rc == 0); setup_test_environment (); void *ctx = zmq_ctx_new (); assert (ctx); // Spawn ZAP handler // We create and bind ZAP socket in main thread to avoid case // where child thread does not start up fast enough. void *handler = zmq_socket (ctx, ZMQ_REP); assert (handler); rc = zmq_bind (handler, "inproc://zeromq.zap.01"); assert (rc == 0); void *zap_thread = zmq_threadstart (&zap_handler, handler); // Server socket will accept connections void *server = zmq_socket (ctx, ZMQ_DEALER); assert (server); int as_server = 1; rc = zmq_setsockopt (server, ZMQ_CURVE_SERVER, &as_server, sizeof (int)); assert (rc == 0); rc = zmq_setsockopt (server, ZMQ_CURVE_SECRETKEY, server_secret, 41); assert (rc == 0); rc = zmq_setsockopt (server, ZMQ_IDENTITY, "IDENT", 6); assert (rc == 0); rc = zmq_bind (server, "tcp://127.0.0.1:*"); assert (rc == 0); size_t len = MAX_SOCKET_STRING; char my_endpoint[MAX_SOCKET_STRING]; rc = zmq_getsockopt (server, ZMQ_LAST_ENDPOINT, my_endpoint, &len); assert (rc == 0); #ifdef ZMQ_BUILD_DRAFT_API // Monitor handshake events on the server rc = zmq_socket_monitor (server, "inproc://monitor-server", ZMQ_EVENT_HANDSHAKE_SUCCEED | ZMQ_EVENT_HANDSHAKE_FAILED); assert (rc == 0); // Create socket for collecting monitor events void *server_mon = zmq_socket (ctx, ZMQ_PAIR); assert (server_mon); // Connect it to the inproc endpoints so they'll get events rc = zmq_connect (server_mon, "inproc://monitor-server"); assert (rc == 0); #endif // Check CURVE security with valid credentials void *client = zmq_socket (ctx, ZMQ_DEALER); assert (client); rc = zmq_setsockopt (client, ZMQ_CURVE_SERVERKEY, server_public, 41); assert (rc == 0); rc = zmq_setsockopt (client, ZMQ_CURVE_PUBLICKEY, client_public, 41); assert (rc == 0); rc = zmq_setsockopt (client, ZMQ_CURVE_SECRETKEY, client_secret, 41); assert (rc == 0); rc = zmq_connect (client, my_endpoint); assert (rc == 0); bounce (server, client); rc = zmq_close (client); assert (rc == 0); #ifdef ZMQ_BUILD_DRAFT_API int event = get_monitor_event (server_mon, NULL, NULL); assert (event == ZMQ_EVENT_HANDSHAKE_SUCCEED); #endif // Check CURVE security with a garbage server key // This will be caught by the curve_server class, not passed to ZAP char garbage_key [] = "0000000000000000000000000000000000000000"; client = zmq_socket (ctx, ZMQ_DEALER); assert (client); rc = zmq_setsockopt (client, ZMQ_CURVE_SERVERKEY, garbage_key, 41); assert (rc == 0); rc = zmq_setsockopt (client, ZMQ_CURVE_PUBLICKEY, client_public, 41); assert (rc == 0); rc = zmq_setsockopt (client, ZMQ_CURVE_SECRETKEY, client_secret, 41); assert (rc == 0); rc = zmq_connect (client, my_endpoint); assert (rc == 0); expect_bounce_fail (server, client); close_zero_linger (client); #ifdef ZMQ_BUILD_DRAFT_API event = get_monitor_event (server_mon, NULL, NULL); assert (event == ZMQ_EVENT_HANDSHAKE_FAILED); #endif // Check CURVE security with a garbage client public key // This will be caught by the curve_server class, not passed to ZAP client = zmq_socket (ctx, ZMQ_DEALER); assert (client); rc = zmq_setsockopt (client, ZMQ_CURVE_SERVERKEY, server_public, 41); assert (rc == 0); rc = zmq_setsockopt (client, ZMQ_CURVE_PUBLICKEY, garbage_key, 41); assert (rc == 0); rc = zmq_setsockopt (client, ZMQ_CURVE_SECRETKEY, client_secret, 41); assert (rc == 0); rc = zmq_connect (client, my_endpoint); assert (rc == 0); expect_bounce_fail (server, client); close_zero_linger (client); #ifdef ZMQ_BUILD_DRAFT_API event = get_monitor_event (server_mon, NULL, NULL); assert (event == ZMQ_EVENT_HANDSHAKE_FAILED); #endif // Check CURVE security with a garbage client secret key // This will be caught by the curve_server class, not passed to ZAP client = zmq_socket (ctx, ZMQ_DEALER); assert (client); rc = zmq_setsockopt (client, ZMQ_CURVE_SERVERKEY, server_public, 41); assert (rc == 0); rc = zmq_setsockopt (client, ZMQ_CURVE_PUBLICKEY, client_public, 41); assert (rc == 0); rc = zmq_setsockopt (client, ZMQ_CURVE_SECRETKEY, garbage_key, 41); assert (rc == 0); rc = zmq_connect (client, my_endpoint); assert (rc == 0); expect_bounce_fail (server, client); close_zero_linger (client); #ifdef ZMQ_BUILD_DRAFT_API event = get_monitor_event (server_mon, NULL, NULL); assert (event == ZMQ_EVENT_HANDSHAKE_FAILED); #endif // Check CURVE security with bogus client credentials // This must be caught by the ZAP handler char bogus_public [41]; char bogus_secret [41]; zmq_curve_keypair (bogus_public, bogus_secret); client = zmq_socket (ctx, ZMQ_DEALER); assert (client); rc = zmq_setsockopt (client, ZMQ_CURVE_SERVERKEY, server_public, 41); assert (rc == 0); rc = zmq_setsockopt (client, ZMQ_CURVE_PUBLICKEY, bogus_public, 41); assert (rc == 0); rc = zmq_setsockopt (client, ZMQ_CURVE_SECRETKEY, bogus_secret, 41); assert (rc == 0); rc = zmq_connect (client, my_endpoint); assert (rc == 0); expect_bounce_fail (server, client); close_zero_linger (client); #ifdef ZMQ_BUILD_DRAFT_API event = get_monitor_event (server_mon, NULL, NULL); assert (event == ZMQ_EVENT_HANDSHAKE_FAILED); #endif // Check CURVE security with NULL client credentials // This must be caught by the curve_server class, not passed to ZAP client = zmq_socket (ctx, ZMQ_DEALER); assert (client); rc = zmq_connect (client, my_endpoint); assert (rc == 0); expect_bounce_fail (server, client); close_zero_linger (client); #ifdef ZMQ_BUILD_DRAFT_API event = get_monitor_event (server_mon, NULL, NULL); assert (event == ZMQ_EVENT_HANDSHAKE_FAILED); #endif // Check CURVE security with PLAIN client credentials // This must be caught by the curve_server class, not passed to ZAP client = zmq_socket (ctx, ZMQ_DEALER); assert (client); rc = zmq_setsockopt (client, ZMQ_PLAIN_USERNAME, "admin", 5); assert (rc == 0); rc = zmq_setsockopt (client, ZMQ_PLAIN_PASSWORD, "password", 8); assert (rc == 0); expect_bounce_fail (server, client); close_zero_linger (client); // Unauthenticated messages from a vanilla socket shouldn't be received struct sockaddr_in ip4addr; int s; unsigned short int port; rc = sscanf(my_endpoint, "tcp://127.0.0.1:%hu", &port); assert (rc == 1); ip4addr.sin_family = AF_INET; ip4addr.sin_port = htons (port); #if defined (ZMQ_HAVE_WINDOWS) && (_WIN32_WINNT < 0x0600) ip4addr.sin_addr.s_addr = inet_addr ("127.0.0.1"); #else inet_pton(AF_INET, "127.0.0.1", &ip4addr.sin_addr); #endif s = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP); rc = connect (s, (struct sockaddr*) &ip4addr, sizeof (ip4addr)); assert (rc > -1); // send anonymous ZMTP/1.0 greeting send (s, "\x01\x00", 2, 0); // send sneaky message that shouldn't be received send (s, "\x08\x00sneaky\0", 9, 0); int timeout = 250; zmq_setsockopt (server, ZMQ_RCVTIMEO, &timeout, sizeof (timeout)); char *buf = s_recv (server); if (buf != NULL) { printf ("Received unauthenticated message: %s\n", buf); assert (buf == NULL); } close (s); // Check return codes for invalid buffer sizes client = zmq_socket (ctx, ZMQ_DEALER); assert (client); errno = 0; rc = zmq_setsockopt (client, ZMQ_CURVE_SERVERKEY, server_public, 123); assert (rc == -1 && errno == EINVAL); errno = 0; rc = zmq_setsockopt (client, ZMQ_CURVE_PUBLICKEY, client_public, 123); assert (rc == -1 && errno == EINVAL); errno = 0; rc = zmq_setsockopt (client, ZMQ_CURVE_SECRETKEY, client_secret, 123); assert (rc == -1 && errno == EINVAL); rc = zmq_close (client); assert (rc == 0); // Shutdown #ifdef ZMQ_BUILD_DRAFT_API close_zero_linger (server_mon); #endif rc = zmq_close (server); assert (rc == 0); rc = zmq_ctx_term (ctx); assert (rc == 0); // Wait until ZAP handler terminates zmq_threadclose (zap_thread); return 0; }