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// **********************************************************************
//
// Copyright (c) 2003-2007 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#include <IceSSL/AcceptorI.h>
#include <IceSSL/Instance.h>
#include <IceSSL/TransceiverI.h>
#include <IceSSL/Util.h>
#include <Ice/Communicator.h>
#include <Ice/Exception.h>
#include <Ice/LocalException.h>
#include <Ice/LoggerUtil.h>
#include <Ice/Network.h>
using namespace std;
using namespace Ice;
using namespace IceSSL;
SOCKET
IceSSL::AcceptorI::fd()
{
return _fd;
}
void
IceSSL::AcceptorI::close()
{
if(_instance->networkTraceLevel() >= 1)
{
Trace out(_logger, _instance->networkTraceCategory());
out << "stopping to accept ssl connections at " << toString();
}
SOCKET fd = _fd;
_fd = INVALID_SOCKET;
IceInternal::closeSocket(fd);
}
void
IceSSL::AcceptorI::listen()
{
try
{
IceInternal::doListen(_fd, _backlog);
}
catch(...)
{
_fd = INVALID_SOCKET;
throw;
}
if(_instance->networkTraceLevel() >= 1)
{
Trace out(_logger, _instance->networkTraceCategory());
out << "accepting ssl connections at " << toString();
}
}
IceInternal::TransceiverPtr
IceSSL::AcceptorI::accept(int timeout)
{
//
// The plugin may not be initialized.
//
if(!_instance->context())
{
PluginInitializationException ex(__FILE__, __LINE__);
ex.reason = "IceSSL: plugin is not initialized";
throw ex;
}
SOCKET fd = IceInternal::doAccept(_fd, timeout);
IceInternal::setBlock(fd, false);
IceInternal::setTcpBufSize(fd, _instance->communicator()->getProperties(), _logger);
BIO* bio = BIO_new_socket(static_cast<int>(fd), BIO_CLOSE);
if(!bio)
{
IceInternal::closeSocketNoThrow(fd);
SecurityException ex(__FILE__, __LINE__);
ex.reason = "openssl failure";
throw ex;
}
SSL* ssl = SSL_new(_instance->context());
if(!ssl)
{
BIO_free(bio); // Also closes the socket.
SecurityException ex(__FILE__, __LINE__);
ex.reason = "openssl failure";
throw ex;
}
SSL_set_bio(ssl, bio, bio);
if(_instance->networkTraceLevel() >= 1)
{
Trace out(_logger, _instance->networkTraceCategory());
out << "attempting to accept ssl connection\n" << IceInternal::fdToString(fd);
}
//
// SSL handshaking is performed in TransceiverI::initialize, since
// accept must not block.
//
return new TransceiverI(_instance, ssl, fd, true, true, _adapterName);
}
void
IceSSL::AcceptorI::connectToSelf()
{
SOCKET fd = IceInternal::createSocket(false, _addr.ss_family);
IceInternal::setBlock(fd, false);
IceInternal::doConnect(fd, _addr, -1);
IceInternal::closeSocket(fd);
}
string
IceSSL::AcceptorI::toString() const
{
return IceInternal::addrToString(_addr);
}
int
IceSSL::AcceptorI::effectivePort() const
{
if(_addr.ss_family == AF_INET)
{
return ntohs(reinterpret_cast<const sockaddr_in*>(&_addr)->sin_port);
}
else
{
return ntohs(reinterpret_cast<const sockaddr_in6*>(&_addr)->sin6_port);
}
}
IceSSL::AcceptorI::AcceptorI(const InstancePtr& instance, const string& adapterName, const string& host, int port) :
_instance(instance),
_adapterName(adapterName),
_logger(instance->communicator()->getLogger()),
_backlog(0)
{
if(_backlog <= 0)
{
_backlog = 5;
}
try
{
IceInternal::getAddressForServer(host, port, _addr, _instance->protocolSupport());
_fd = IceInternal::createSocket(false, _addr.ss_family);
IceInternal::setBlock(_fd, false);
IceInternal::setTcpBufSize(_fd, _instance->communicator()->getProperties(), _logger);
#ifndef _WIN32
//
// Enable SO_REUSEADDR on Unix platforms to allow re-using the
// socket even if it's in the TIME_WAIT state. On Windows,
// this doesn't appear to be necessary and enabling
// SO_REUSEADDR would actually not be a good thing since it
// allows a second process to bind to an address even it's
// already bound by another process.
//
// TODO: using SO_EXCLUSIVEADDRUSE on Windows would probably
// be better but it's only supported by recent Windows
// versions (XP SP2, Windows Server 2003).
//
IceInternal::setReuseAddress(_fd, true);
#endif
if(_instance->networkTraceLevel() >= 2)
{
Trace out(_logger, _instance->networkTraceCategory());
out << "attempting to bind to ssl socket " << toString();
}
IceInternal::doBind(_fd, _addr);
}
catch(...)
{
_fd = INVALID_SOCKET;
throw;
}
}
IceSSL::AcceptorI::~AcceptorI()
{
assert(_fd == INVALID_SOCKET);
}
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