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/*******************************************************************************
* Copyright (C) 2004-2008 Intel Corp. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* - Neither the name of Intel Corp. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Intel Corp. OR THE CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************/
#ifndef _PROTOCOL_H_
#define _PROTOCOL_H_
#include <map>
#include <vector>
#include <set>
#include <string>
#include "types.h"
#include "LMS_if.h"
#include "LMEConnection.h"
#include "PortForwardRequest.h"
#include "Channel.h"
#include "Semaphore.h"
#if defined(__sun) || defined(_LINUX)
#define SOCKET int
#define INVALID_SOCKET (SOCKET)(~0)
#define SOCKET_ERROR (-1)
#else
#include <windows.h>
#endif // __sun || _LINUX
#ifdef _REMOTE_SUPPORT
#include "ConfigConnection.h"
#endif
#define FQDN_MAX_SIZE 256
typedef void (*EventLogCallback)(void *param, LPCTSTR message, WORD eventType);
class Protocol
{
public:
static const LMEProtocolVersionMessage MIN_PROT_VERSION;
static const LMEProtocolVersionMessage MAX_PROT_VERSION;
enum SOCKET_STATUS {
ACTIVE = 0,
NOT_CREATED,
LINGER_ERROR,
NOT_BINDED,
NOT_EXCLUSIVE_ADDRESS,
NOT_LISTENED
};
Protocol();
~Protocol();
bool CreateSockets();
void DestroySockets();
bool SocketsCreated() { return _sockets_active; }
bool IsDeInitialized();
bool IsInitialized();
bool Init(EventLogCallback cb, void *param);
int Select();
void Deinit();
void DeinitFull();
bool oldProtocolMode;
private:
static void _LmeCallback(void *param, void *buffer, unsigned int len, int *status);
static int _isLocalCallback(void *const param, SOCKET s);
#ifdef _REMOTE_SUPPORT
static int _isRemoteCallback(void *const param, SOCKET s);
#endif
static char *_getErrMsg(DWORD err);
bool _checkProtocolFlow(LMEMessage *message);
unsigned int _getMinMessageLen(LMEMessage *message);
unsigned int _getMinGlobalMsgLen(LMEGlobalRequestMessage *globalMessage);
bool _checkMessageAndProtocol(LMEMessage *message, unsigned int len);
void _closePortForwardRequest(PortForwardRequest *p);
void _apfGlobalRequest(LMEGlobalRequestMessage *globalMessage, unsigned int len, int *status);
void _apfTcpForwardRequest(LMETcpForwardRequestMessage *tcpFwdReqMsg, int *status);
void _apfTcpForwardCancel(LMETcpForwardCancelRequestMessage *tcpFwdCnclMsg);
void _aptSendUdp(LMEUdpSendToMessage *udpSendToMessage, int *status);
void _apfProtocolVersion(LMEProtocolVersionMessage *verMsg);
void _apfChannelOpen(LMEChannelOpenRequestMessage *chOpenMsg, int *status);
PortForwardRequest *_closeMChannel(Channel *c);
PortForwardRequest *_apfChannelOFail(LMEChannelOpenReplayFailureMessage *chFailMsg);
PortForwardRequest *_apfChannelClose(LMEChannelCloseMessage *chClMsg);
PortForwardRequest *_apfChannelData(LMEChannelDataMessage *chDMsg, int *status);
void _LmeReceive(void *buffer, unsigned int len, int *status);
void _LmeReceiveCompat(char *buffer, unsigned int len, int *status);
void _signalSelect();
bool _acceptConnection(SOCKET s, unsigned int port);
int _rxFromSocket(SOCKET s);
int _handleFQDNChange(const char *fqdn);
int _updateIPFQDN(const char *fqdn);
#ifdef _REMOTE_SUPPORT
static bool _compareDNSSuffix(std::string AMTDNSSuffix, std::string suffix);
int _isRemote(SOCKET s) const;
bool _checkRemoteSupport(bool requestDnsFromAmt = false);
void _updateEnterpriseAccessStatus(const ATDomainMap &localDNSSuffixes);
#endif
ssize_t _send(int s, const void *buf, size_t len, int &senderr);
bool _checkListen(std::string address, in_port_t port, int &socket);
int _listenPort(in_port_t port, int &error);
bool _localListen(in_port_t port);
Channel *_getSockOpenChannel(SOCKET s);
struct Connection {
SOCKET s;
};
typedef std::vector<PortForwardRequest *> PortForwardRequestList;
typedef std::map<unsigned int, PortForwardRequestList> PortMap;
typedef std::map<unsigned int, Channel *> ChannelMap;
LMEConnection _lme;
char *_rxSocketBuffer;
unsigned int _rxSocketBufferSize;
#ifdef _REMOTE_SUPPORT
ConfigConnection _cfg;
#endif
SOCKET _serverSignalSocket;
SOCKET _clientSignalSocket; // Used to notify Select() to check new available channels
bool _sockets_active;
PortMap _openPorts;
ChannelMap _openChannels;
Semaphore _portsLock;
Semaphore _channelsLock;
#ifdef _REMOTE_SUPPORT
std::list<std::string> _AMTDNSSuffixes;
mutable Semaphore _AMTDNSLock;
bool _remoteAccessEnabled;
mutable Semaphore _remoteAccessLock;
#endif
enum VERSION_HANDSHAKING {
NOT_INITIATED,
INITIATED,
AGREED
};
enum SERVICE_STATUS {
NOT_STARTED,
STARTED
};
VERSION_HANDSHAKING _handshakingStatus;
SERVICE_STATUS _pfwdService;
LMEProtocolVersionMessage _AmtProtVersion;
Semaphore _versionLock;
char _AMTFQDN[FQDN_MAX_SIZE];
EventLogCallback _eventLog;
void *_eventLogParam;
bool _deinitReq;
Semaphore _deinitLock;
typedef std::set<unsigned int> listenPortSet;
listenPortSet _listenFailReported;
};
#endif
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