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https://github.com/zeromq/libzmq.git
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5385a51527
use explicit ZMTP/1.0 anonymous greeting rather than HTTP request that just happened to work
282 lines
9.6 KiB
C++
282 lines
9.6 KiB
C++
/*
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Copyright (c) 2007-2014 Contributors as noted in the AUTHORS file
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This file is part of 0MQ.
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0MQ is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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0MQ is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "testutil.hpp"
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#if defined (ZMQ_HAVE_WINDOWS)
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# include <winsock2.h>
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# include <ws2tcpip.h>
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# include <stdexcept>
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# define close closesocket
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#else
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# include <sys/socket.h>
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# include <netinet/in.h>
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# include <arpa/inet.h>
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# include <unistd.h>
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#endif
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// We'll generate random test keys at startup
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static char client_public [41];
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static char client_secret [41];
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static char server_public [41];
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static char server_secret [41];
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// --------------------------------------------------------------------------
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// This methods receives and validates ZAP requestes (allowing or denying
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// each client connection).
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static void zap_handler (void *handler)
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{
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// Process ZAP requests forever
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while (true) {
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char *version = s_recv (handler);
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if (!version)
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break; // Terminating
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char *sequence = s_recv (handler);
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char *domain = s_recv (handler);
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char *address = s_recv (handler);
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char *identity = s_recv (handler);
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char *mechanism = s_recv (handler);
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uint8_t client_key [32];
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int size = zmq_recv (handler, client_key, 32, 0);
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assert (size == 32);
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char client_key_text [41];
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zmq_z85_encode (client_key_text, client_key, 32);
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assert (streq (version, "1.0"));
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assert (streq (mechanism, "CURVE"));
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assert (streq (identity, "IDENT"));
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s_sendmore (handler, version);
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s_sendmore (handler, sequence);
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if (streq (client_key_text, client_public)) {
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s_sendmore (handler, "200");
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s_sendmore (handler, "OK");
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s_sendmore (handler, "anonymous");
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s_send (handler, "");
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}
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else {
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s_sendmore (handler, "400");
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s_sendmore (handler, "Invalid client public key");
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s_sendmore (handler, "");
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s_send (handler, "");
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}
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free (version);
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free (sequence);
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free (domain);
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free (address);
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free (identity);
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free (mechanism);
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}
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zmq_close (handler);
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}
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int main (void)
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{
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#ifndef HAVE_LIBSODIUM
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printf ("libsodium not installed, skipping CURVE test\n");
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return 0;
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#endif
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// Generate new keypairs for this test
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int rc = zmq_curve_keypair (client_public, client_secret);
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assert (rc == 0);
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rc = zmq_curve_keypair (server_public, server_secret);
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assert (rc == 0);
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setup_test_environment ();
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void *ctx = zmq_ctx_new ();
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assert (ctx);
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// Spawn ZAP handler
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// We create and bind ZAP socket in main thread to avoid case
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// where child thread does not start up fast enough.
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void *handler = zmq_socket (ctx, ZMQ_REP);
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assert (handler);
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rc = zmq_bind (handler, "inproc://zeromq.zap.01");
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assert (rc == 0);
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void *zap_thread = zmq_threadstart (&zap_handler, handler);
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// Server socket will accept connections
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void *server = zmq_socket (ctx, ZMQ_DEALER);
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assert (server);
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int as_server = 1;
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rc = zmq_setsockopt (server, ZMQ_CURVE_SERVER, &as_server, sizeof (int));
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assert (rc == 0);
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rc = zmq_setsockopt (server, ZMQ_CURVE_SECRETKEY, server_secret, 41);
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assert (rc == 0);
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rc = zmq_setsockopt (server, ZMQ_IDENTITY, "IDENT", 6);
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assert (rc == 0);
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rc = zmq_bind (server, "tcp://127.0.0.1:9998");
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assert (rc == 0);
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// Check CURVE security with valid credentials
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void *client = zmq_socket (ctx, ZMQ_DEALER);
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assert (client);
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rc = zmq_setsockopt (client, ZMQ_CURVE_SERVERKEY, server_public, 41);
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assert (rc == 0);
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rc = zmq_setsockopt (client, ZMQ_CURVE_PUBLICKEY, client_public, 41);
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assert (rc == 0);
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rc = zmq_setsockopt (client, ZMQ_CURVE_SECRETKEY, client_secret, 41);
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assert (rc == 0);
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rc = zmq_connect (client, "tcp://localhost:9998");
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assert (rc == 0);
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bounce (server, client);
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rc = zmq_close (client);
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assert (rc == 0);
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// Check CURVE security with a garbage server key
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// This will be caught by the curve_server class, not passed to ZAP
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char garbage_key [] = "0000111122223333444455556666777788889999";
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client = zmq_socket (ctx, ZMQ_DEALER);
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assert (client);
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rc = zmq_setsockopt (client, ZMQ_CURVE_SERVERKEY, garbage_key, 41);
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assert (rc == 0);
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rc = zmq_setsockopt (client, ZMQ_CURVE_PUBLICKEY, client_public, 41);
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assert (rc == 0);
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rc = zmq_setsockopt (client, ZMQ_CURVE_SECRETKEY, client_secret, 41);
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assert (rc == 0);
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rc = zmq_connect (client, "tcp://localhost:9998");
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assert (rc == 0);
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expect_bounce_fail (server, client);
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close_zero_linger (client);
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// Check CURVE security with a garbage client public key
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// This will be caught by the curve_server class, not passed to ZAP
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client = zmq_socket (ctx, ZMQ_DEALER);
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assert (client);
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rc = zmq_setsockopt (client, ZMQ_CURVE_SERVERKEY, server_public, 41);
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assert (rc == 0);
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rc = zmq_setsockopt (client, ZMQ_CURVE_PUBLICKEY, garbage_key, 41);
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assert (rc == 0);
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rc = zmq_setsockopt (client, ZMQ_CURVE_SECRETKEY, client_secret, 41);
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assert (rc == 0);
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rc = zmq_connect (client, "tcp://localhost:9998");
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assert (rc == 0);
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expect_bounce_fail (server, client);
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close_zero_linger (client);
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// Check CURVE security with a garbage client secret key
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// This will be caught by the curve_server class, not passed to ZAP
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client = zmq_socket (ctx, ZMQ_DEALER);
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assert (client);
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rc = zmq_setsockopt (client, ZMQ_CURVE_SERVERKEY, server_public, 41);
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assert (rc == 0);
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rc = zmq_setsockopt (client, ZMQ_CURVE_PUBLICKEY, client_public, 41);
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assert (rc == 0);
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rc = zmq_setsockopt (client, ZMQ_CURVE_SECRETKEY, garbage_key, 41);
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assert (rc == 0);
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rc = zmq_connect (client, "tcp://localhost:9998");
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assert (rc == 0);
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expect_bounce_fail (server, client);
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close_zero_linger (client);
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// Check CURVE security with bogus client credentials
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// This must be caught by the ZAP handler
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char bogus_public [41];
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char bogus_secret [41];
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zmq_curve_keypair (bogus_public, bogus_secret);
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client = zmq_socket (ctx, ZMQ_DEALER);
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assert (client);
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rc = zmq_setsockopt (client, ZMQ_CURVE_SERVERKEY, server_public, 41);
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assert (rc == 0);
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rc = zmq_setsockopt (client, ZMQ_CURVE_PUBLICKEY, bogus_public, 41);
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assert (rc == 0);
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rc = zmq_setsockopt (client, ZMQ_CURVE_SECRETKEY, bogus_secret, 41);
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assert (rc == 0);
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rc = zmq_connect (client, "tcp://localhost:9998");
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assert (rc == 0);
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expect_bounce_fail (server, client);
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close_zero_linger (client);
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// Check CURVE security with NULL client credentials
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// This must be caught by the curve_server class, not passed to ZAP
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client = zmq_socket (ctx, ZMQ_DEALER);
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assert (client);
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rc = zmq_connect (client, "tcp://localhost:9998");
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assert (rc == 0);
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expect_bounce_fail (server, client);
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close_zero_linger (client);
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// Check CURVE security with PLAIN client credentials
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// This must be caught by the curve_server class, not passed to ZAP
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client = zmq_socket (ctx, ZMQ_DEALER);
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assert (client);
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rc = zmq_setsockopt (client, ZMQ_PLAIN_USERNAME, "admin", 5);
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assert (rc == 0);
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rc = zmq_setsockopt (client, ZMQ_PLAIN_PASSWORD, "password", 8);
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assert (rc == 0);
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expect_bounce_fail (server, client);
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close_zero_linger (client);
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// Unauthenticated messages from a vanilla socket shouldn't be received
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struct sockaddr_in ip4addr;
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int s;
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ip4addr.sin_family = AF_INET;
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ip4addr.sin_port = htons (9998);
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inet_pton (AF_INET, "127.0.0.1", &ip4addr.sin_addr);
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s = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP);
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rc = connect (s, (struct sockaddr*) &ip4addr, sizeof (ip4addr));
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assert (rc > -1);
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// send anonymous ZMTP/1.0 greeting
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send (s, "\x01\x00", 2, 0);
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// send sneaky message that shouldn't be received
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send (s, "\x08\x00sneaky\0", 9, 0);
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int timeout = 150;
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zmq_setsockopt (server, ZMQ_RCVTIMEO, &timeout, sizeof (timeout));
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char *buf = s_recv (server);
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if (buf != NULL) {
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printf ("Received unauthenticated message: %s\n", buf);
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assert (buf == NULL);
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}
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close (s);
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// Check return codes for invalid buffer sizes
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client = zmq_socket (ctx, ZMQ_DEALER);
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assert (client);
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errno = 0;
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rc = zmq_setsockopt (client, ZMQ_CURVE_SERVERKEY, server_public, 123);
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assert (rc == -1 && errno == EINVAL);
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errno = 0;
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rc = zmq_setsockopt (client, ZMQ_CURVE_PUBLICKEY, client_public, 123);
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assert (rc == -1 && errno == EINVAL);
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errno = 0;
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rc = zmq_setsockopt (client, ZMQ_CURVE_SECRETKEY, client_secret, 123);
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assert (rc == -1 && errno == EINVAL);
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rc = zmq_close (client);
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assert (rc == 0);
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// Shutdown
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rc = zmq_close (server);
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assert (rc == 0);
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rc = zmq_ctx_term (ctx);
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assert (rc == 0);
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// Wait until ZAP handler terminates
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zmq_threadclose (zap_thread);
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return 0;
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}
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