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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
#include "qpid/sys/TransportFactory.h"
#include "qpid/Plugin.h"
#include "qpid/broker/Broker.h"
#include "qpid/log/Statement.h"
#include "qpid/sys/AsynchIO.h"
#include "qpid/sys/SocketTransport.h"
#include "qpid/sys/ssl/util.h"
#include "qpid/sys/ssl/SslSocket.h"
#include <boost/bind.hpp>
namespace qpid {
namespace sys {
class Timer;
using namespace qpid::sys::ssl;
struct SslServerOptions : ssl::SslOptions
{
uint16_t port;
bool clientAuth;
bool nodict;
SslServerOptions() : port(5671),
clientAuth(false),
nodict(false)
{
addOptions()
("ssl-port", optValue(port, "PORT"), "Port on which to listen for SSL connections")
("ssl-require-client-authentication", optValue(clientAuth),
"Forces clients to authenticate in order to establish an SSL connection")
("ssl-sasl-no-dict", optValue(nodict),
"Disables SASL mechanisms that are vulnerable to passive dictionary-based password attacks");
}
};
namespace {
Socket* createServerSSLSocket(const SslServerOptions& options) {
return new SslSocket(options.certName, options.clientAuth);
}
Socket* createServerSSLMuxSocket(const SslServerOptions& options) {
return new SslMuxSocket(options.certName, options.clientAuth);
}
Socket* createClientSSLSocket() {
return new SslSocket();
}
}
// Static instance to initialise plugin
static struct SslPlugin : public Plugin {
SslServerOptions options;
bool nssInitialized;
bool multiplex;
Options* getOptions() { return &options; }
SslPlugin() : nssInitialized(false), multiplex(false) {}
~SslPlugin() { if (nssInitialized) ssl::shutdownNSS(); }
void earlyInitialize(Target& target) {
broker::Broker* broker = dynamic_cast<broker::Broker*>(&target);
if (broker && broker->shouldListen("ssl")) {
if (options.certDbPath.empty()) {
QPID_LOG(notice, "SSL plugin not enabled, you must set --ssl-cert-db to enable it.");
broker->disableListening("ssl");
return;
}
try {
ssl::initNSS(options, true);
nssInitialized = true;
} catch (const std::exception& e) {
QPID_LOG(error, "Failed to initialise SSL plugin: " << e.what());
broker->disableListening("ssl");
return;
}
if (broker->getPortOption() == options.port && // AMQP & AMQPS ports are the same
broker->getPortOption() != 0 &&
broker->shouldListen("tcp")) {
multiplex = true;
broker->disableListening("tcp");
}
}
}
void initialize(Target& target) {
QPID_LOG(trace, "Initialising SSL plugin");
broker::Broker* broker = dynamic_cast<broker::Broker*>(&target);
// Only provide to a Broker
if (broker) {
uint16_t port = options.port;
TransportAcceptor::shared_ptr ta;
if (broker->shouldListen("ssl")) {
SocketAcceptor* sa =
new SocketAcceptor(broker->getTcpNoDelay(), options.nodict, broker->getMaxNegotiateTime(), broker->getTimer());
port = sa->listen(broker->getListenInterfaces(), options.port, broker->getConnectionBacklog(),
multiplex ?
boost::bind(&createServerSSLMuxSocket, options) :
boost::bind(&createServerSSLSocket, options));
if ( port!=0 ) {
ta.reset(sa);
QPID_LOG(notice, "Listening for " <<
(multiplex ? "SSL or TCP" : "SSL") <<
" connections on TCP/TCP6 port " <<
port);
}
}
TransportConnector::shared_ptr tc(
new SocketConnector(broker->getTcpNoDelay(), options.nodict, broker->getMaxNegotiateTime(), broker->getTimer(),
&createClientSSLSocket));
broker->registerTransport("ssl", ta, tc, port);
}
}
} sslPlugin;
}} // namespace qpid::sys
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