windows-nt/Source/XPSP1/NT/enduser/netmeeting/ui/msconfft/plugable.cpp

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2020-09-26 03:20:57 -05:00
#include "mbftpch.h"
#if defined(TEST_PLUGABLE) && defined(_DEBUG)
#include "plugable.h"
#include "iplgxprt.h"
#include "it120xprt.h"
#include "nullmdm.h"
extern HINSTANCE g_hDllInst;
#define PLUGABLE_PORT_NUMBER 522 // ULS server port number
IT120PluggableTransport *g_pPluggableTransport = NULL;
#ifdef USE_SOCKET
SOCKET g_hListenSocket = INVALID_SOCKET;
#endif
typedef struct
{
LPSTR pszHostName;
#ifdef USE_SOCKET
SOCKET hSocket;
#else
CNullModem *pModem;
#endif
HANDLE hevtRead;
HANDLE hevtWrite;
HANDLE hevtClose;
char szConnID[64];
}
HOST_INFO;
#define NUM_HOSTS 2
#define TOP_PROVIDER_ID 0
ULONG g_nMyHostID = (ULONG) -1;
HOST_INFO g_aHostInfo[NUM_HOSTS];
char g_szMyHostName[64];
PLUGXPRT_PARAMETERS g_PluggableParams;
#ifdef USE_SOCKET
SOCKET CreateListenSocket(HWND hwnd);
SOCKET CreateConnectSocket(HWND hwnd, LPSTR pszHostName);
#else
CNullModem * CreateListenModem(void);
void CloseListenModem(CNullModem *p);
CNullModem * CreateConnectModem(LPSTR pszHostName);
void CloseConnectModem(CNullModem *p);
#endif
void OnPluggableBegin(HWND hwnd)
{
#ifdef USE_SOCKET
WSADATA wsa_data;
WORD version_requested = MAKEWORD (1,1);
int error = ::WSAStartup(version_requested, &wsa_data);
ASSERT(error == 0);
g_hListenSocket = INVALID_SOCKET;
#endif
::ZeroMemory(g_aHostInfo, sizeof(g_aHostInfo));
g_aHostInfo[0].pszHostName = "lonchanc";
g_aHostInfo[1].pszHostName = "lon1";
// g_aHostInfo[2].pszHostName = "lonchanc_nt";
for (ULONG i = 0; i < NUM_HOSTS; i++)
{
g_aHostInfo[i].szConnID[0] = '\0';
#ifdef USE_SOCKET
g_aHostInfo[i].hSocket = INVALID_SOCKET;
#else
g_aHostInfo[i].pModem = NULL;
#endif
g_aHostInfo[i].hevtRead = ::CreateEvent(NULL, FALSE, FALSE, NULL);
g_aHostInfo[i].hevtWrite = ::CreateEvent(NULL, FALSE, FALSE, NULL);;
g_aHostInfo[i].hevtClose = ::CreateEvent(NULL, FALSE, FALSE, NULL);;
ASSERT(g_aHostInfo[i].hevtRead && g_aHostInfo[i].hevtWrite && g_aHostInfo[i].hevtClose);
}
T120Error rc = ::T120_CreatePluggableTransport(&g_pPluggableTransport);
ASSERT(T120_NO_ERROR == rc);
g_pPluggableTransport->ResetConnCounter();
g_pPluggableTransport->DisableWinsock();
gethostname(g_szMyHostName, 64);
TRACE_OUT(("OnPluggableScript: HostName=%s", g_szMyHostName));
for (i = 0; i < NUM_HOSTS; i++)
{
if (! ::lstrcmpi(g_aHostInfo[i].pszHostName, g_szMyHostName))
{
g_nMyHostID = i;
break;
}
}
ASSERT(i < NUM_HOSTS);
ASSERT(g_nMyHostID < NUM_HOSTS);
::ZeroMemory(&g_PluggableParams, sizeof(g_PluggableParams));
g_PluggableParams.cbStructSize = sizeof(g_PluggableParams);
g_PluggableParams.dwFlags = PSTN_PARAM__CALL_CONTROL |
PSTN_PARAM__READ_FILE_BUFFER_SIZE |
PSTN_PARAM__PHYSICAL_LAYER_SEND_BUFFER_SIZE |
PSTN_PARAM__PHSYICAL_LAYER_RECV_BUFFER_SIZE |
PSTN_PARAM__MAX_T200_TIMEOUT_COUNT_IN_Q922 |
PSTN_PARAM__T203_TIMEOUT_IN_Q922;
g_PluggableParams.eCallControl = PLUGXPRT_PSTN_CALL_CONTROL_MANUAL;
g_PluggableParams.cbReadFileBufferSize = 10240; // 10K
g_PluggableParams.cbPhysicalLayerSendBufferSize = 1024; // 1K
g_PluggableParams.cbPhysicalLayerReceiveBufferSize = 10240; // 10K
g_PluggableParams.cMaximumT200TimeoutsInQ922 = 5;
g_PluggableParams.nT203TimeoutInQ922 = 600;
if (TOP_PROVIDER_ID == g_nMyHostID)
{
for (i = 0; i < NUM_HOSTS; i++)
{
if (i != g_nMyHostID)
{
#ifdef USE_SOCKET
g_aHostInfo[i].hSocket = ::CreateConnectSocket(hwnd, g_aHostInfo[i].pszHostName);
ASSERT(INVALID_SOCKET != g_aHostInfo[i].hSocket);
#else
g_aHostInfo[i].pModem = ::CreateConnectModem(g_aHostInfo[i].pszHostName);
ASSERT(NULL != g_aHostInfo[i].pModem);
#endif
HANDLE hCommLink = NULL;
#ifdef USE_SOCKET
BOOL fRet = ::DuplicateHandle(::GetCurrentProcess(), (HANDLE) g_aHostInfo[i].hSocket,
#else
BOOL fRet = ::DuplicateHandle(::GetCurrentProcess(), g_aHostInfo[i].pModem->GetCommLink(),
#endif
::GetCurrentProcess(), &hCommLink,
0, FALSE, DUPLICATE_SAME_ACCESS);
ASSERT(fRet);
rc = g_pPluggableTransport->CreateConnection(
g_aHostInfo[i].szConnID,
PLUGXPRT_CALLER, // caller
hCommLink,
g_aHostInfo[i].hevtRead,
g_aHostInfo[i].hevtWrite,
g_aHostInfo[i].hevtClose,
FRAMING_LEGACY_PSTN,
&g_PluggableParams);
ASSERT(T120_NO_ERROR == rc);
}
}
}
else
{
#ifdef USE_SOCKET
g_hListenSocket = ::CreateListenSocket(hwnd);
#else
g_aHostInfo[i].pModem = ::CreateListenModem();
ASSERT(NULL != g_aHostInfo[i].pModem);
HANDLE hCommLink = NULL;
BOOL fRet = ::DuplicateHandle(::GetCurrentProcess(), g_aHostInfo[i].pModem->GetCommLink(),
::GetCurrentProcess(), &hCommLink,
0, FALSE, DUPLICATE_SAME_ACCESS);
ASSERT(fRet);
T120Error rc = g_pPluggableTransport->CreateConnection(
g_aHostInfo[i].szConnID,
PLUGXPRT_CALLEE, // callee
hCommLink,
g_aHostInfo[i].hevtRead,
g_aHostInfo[i].hevtWrite,
g_aHostInfo[i].hevtClose,
FRAMING_LEGACY_PSTN,
&g_PluggableParams);
ASSERT(T120_NO_ERROR == rc);
#endif
}
}
void OnPluggableEnd(void)
{
#ifdef USE_SOCKET
if (INVALID_SOCKET != g_hListenSocket)
{
::closesocket(g_hListenSocket);
}
for (ULONG i = 0; i < NUM_HOSTS; i++)
{
if (INVALID_SOCKET != g_aHostInfo[i].hSocket)
{
::closesocket(g_aHostInfo[i].hSocket);
}
}
#else
for (ULONG i = 0; i < NUM_HOSTS; i++)
{
if (i != g_nMyHostID)
{
CloseConnectModem(g_aHostInfo[i].pModem);
}
else
{
CloseListenModem(g_aHostInfo[i].pModem);
}
g_aHostInfo[i].pModem = NULL;
}
#endif
g_pPluggableTransport->EnableWinsock();
g_pPluggableTransport->ReleaseInterface();
g_pPluggableTransport = NULL;
#ifdef USE_SOCKET
::WSACleanup();
#endif
}
LRESULT OnPluggableSocket(HWND hwnd, WPARAM wParam, LPARAM lParam)
{
#ifdef USE_SOCKET
/* This message is generated by WinSock */
SOCKET hSocket = (SOCKET) wParam;
ULONG event = WSAGETSELECTEVENT(lParam);
ULONG error = WSAGETSELECTERROR(lParam);
ULONG nIdx = (ULONG) -1;
if (hSocket != g_hListenSocket)
{
for (ULONG i = 0; i < NUM_HOSTS; i++)
{
if (hSocket == g_aHostInfo[i].hSocket)
{
nIdx = i;
break;
}
}
ASSERT(nIdx < NUM_HOSTS);
}
else
{
nIdx = TOP_PROVIDER_ID;
}
/* We disconnect whenever a socket command generates an error message */
if (error)
{
TRACE_OUT(("OnPluggableSocket: error %d on socket (%d). Event: %d", error, hSocket, event));
}
/* We get FD_CLOSE when the socket is closed by the remote site. */
if (event & FD_CLOSE)
{
TRACE_OUT(("OnPluggableSocket FD_CLOSE(%d)", hSocket));
::SetEvent(g_aHostInfo[nIdx].hevtClose);
}
/* We get FD_READ when there is data available for us to read. */
if (event & FD_READ)
{
TRACE_OUT(("OnPluggableSocket FD_READ(%d)", hSocket));
::SetEvent(g_aHostInfo[nIdx].hevtRead);
}
/* We get FD_WRITE when there is space available to write data to WinSock */
if (event & FD_WRITE)
{
TRACE_OUT(("OnPluggableSocket FD_WRITE(%d)", hSocket));
::SetEvent(g_aHostInfo[nIdx].hevtWrite);
}
/* We get FD_CONNECT when connecting to a remote site */
if (event & FD_CONNECT)
{
TRACE_OUT(("OnPluggableSocket FD_CONNECT(%d)", hSocket));
// ::SetEvent(g_aHostInfo[nIdx].hevtWrite);
}
/* We get FD_ACCEPT when a remote site is connecting with us */
if (event & FD_ACCEPT)
{
TRACE_OUT(("OnPluggableSocket FD_ACCEPT(%d)", hSocket));
ASSERT(nIdx == TOP_PROVIDER_ID);
SOCKADDR_IN socket_control;
int size = sizeof(socket_control);
g_aHostInfo[nIdx].hSocket = ::accept(g_hListenSocket, (struct sockaddr *) &socket_control, &size);
ASSERT(INVALID_SOCKET != g_aHostInfo[nIdx].hSocket);
int nRet = ::WSAAsyncSelect(g_aHostInfo[nIdx].hSocket, hwnd,
WM_PLUGABLE_SOCKET,
FD_READ | FD_WRITE | FD_CLOSE | FD_CONNECT);
ASSERT(SOCKET_ERROR != nRet);
HANDLE hCommLink = NULL;
BOOL fRet = ::DuplicateHandle(::GetCurrentProcess(), (HANDLE) g_aHostInfo[nIdx].hSocket,
::GetCurrentProcess(), &hCommLink,
0, FALSE, DUPLICATE_SAME_ACCESS);
ASSERT(fRet);
T120Error rc = g_pPluggableTransport->CreateConnection(
g_aHostInfo[nIdx].szConnID,
PLUGXPRT_CALLEE, // callee
hCommLink,
g_aHostInfo[nIdx].hevtRead,
g_aHostInfo[nIdx].hevtWrite,
g_aHostInfo[nIdx].hevtClose,
FRAMING_LEGACY_PSTN,
&g_PluggableParams);
ASSERT(T120_NO_ERROR == rc);
// ::SetEvent(g_aHostInfo[nIdx].hevtWrite);
}
#endif
return 0;
}
/*
* void CreateListenSocket (VOID)
*
* Functional Description
* This function sets up a listening socket.
* returns INVALID_SOCKET if there is any error.
*/
#ifdef USE_SOCKET
SOCKET CreateListenSocket(HWND hwnd)
{
SOCKADDR_IN socket_control;
SOCKET socket_number;
// Create the listening socket.
socket_number = ::socket(AF_INET, SOCK_STREAM, 0);
ASSERT(INVALID_SOCKET != socket_number);
// The listen socket only waits for FD_ACCEPT msgs.
int nRet = ::WSAAsyncSelect(socket_number, hwnd, WM_PLUGABLE_SOCKET, FD_ACCEPT);
ASSERT(SOCKET_ERROR != nRet);
/*
* Load the socket control structure with the parameters necessary.
* - Internet socket
* - Let it assign any address to this socket
* - Assign our port number
*/
socket_control.sin_family = AF_INET;
socket_control.sin_addr.s_addr = INADDR_ANY;
socket_control.sin_port = htons ( PLUGABLE_PORT_NUMBER );
/* Issue the bind call */
nRet = ::bind(socket_number, (LPSOCKADDR) &socket_control, sizeof(SOCKADDR_IN));
ASSERT(SOCKET_ERROR != nRet);
/*
* Issue a listen to WinSock to tell it we are willing to accept calls.
* This is a non-blocking listen, therefore we will receive FD_ACCEPT
* if someone is trying to call us.
*/
nRet =::listen(socket_number, 3 /* LISTEN_QUEUE_SIZE */);
ASSERT(SOCKET_ERROR != nRet);
return socket_number;
}
#else
CNullModem * CreateListenModem(void)
{
DBG_SAVE_FILE_LINE
CNullModem *p = new CNullModem(g_hDllInst);
ASSERT(NULL != p);
TPhysicalError rc;
rc = p->TPhysInitialize(NULL, 1);
ASSERT(TPHYS_SUCCESS == rc);
rc = p->TPhysConnectRequest("COM1");
ASSERT(TPHYS_SUCCESS == rc);
rc = p->TPhysListen();
ASSERT(TPHYS_SUCCESS == rc);
return p;
}
void CloseListenModem(CNullModem *p)
{
if (NULL != p)
{
TPhysicalError rc;
rc = p->TPhysUnlisten();
ASSERT(TPHYS_SUCCESS == rc);
rc = p->TPhysDisconnect();
ASSERT(TPHYS_SUCCESS == rc);
rc = p->TPhysTerminate();
ASSERT(TPHYS_SUCCESS == rc);
delete p;
}
}
#endif
#ifdef USE_SOCKET
SOCKET CreateConnectSocket(HWND hwnd, LPSTR pszHostName)
{
SOCKET socket_number;
u_short uPort = PLUGABLE_PORT_NUMBER;
PHOSTENT phe = NULL;
SOCKADDR_IN socket_control;
DWORD dwIPAddress;
socket_number = ::socket(AF_INET, SOCK_STREAM, 0);
ASSERT(INVALID_SOCKET != socket_number);
/* Enable Tx and Rx messages to the window */
int nRet = ::WSAAsyncSelect(socket_number, hwnd, WM_PLUGABLE_SOCKET,
FD_READ | FD_WRITE | FD_CLOSE);
ASSERT(SOCKET_ERROR != nRet);
// fill in other info in SockAddr
::ZeroMemory(&socket_control, sizeof(socket_control));
socket_control.sin_family = AF_INET;
socket_control.sin_port = htons (PLUGABLE_PORT_NUMBER);
// get server's IP address
dwIPAddress = ::inet_addr(pszHostName);
if (dwIPAddress != INADDR_NONE)
{
*((PDWORD) &socket_control.sin_addr) = dwIPAddress;
}
else
{
phe = ::gethostbyname(pszHostName);
ASSERT(NULL != phe);
::CopyMemory(&socket_control.sin_addr, phe->h_addr, phe->h_length);
}
/* Attempt a connection to the remote site */
nRet = ::connect(socket_number, (const struct sockaddr *) &socket_control, sizeof(socket_control));
ASSERT(SOCKET_ERROR != nRet || WSAEWOULDBLOCK == ::WSAGetLastError());
return socket_number;
}
#else
CNullModem * CreateConnectModem(LPSTR pszHostName)
{
DBG_SAVE_FILE_LINE
CNullModem *p = new CNullModem(g_hDllInst);
ASSERT(NULL != p);
TPhysicalError rc;
rc = p->TPhysInitialize(NULL, 1);
ASSERT(TPHYS_SUCCESS == rc);
rc = p->TPhysConnectRequest("COM1");
ASSERT(TPHYS_SUCCESS == rc);
rc = p->TPhysListen();
ASSERT(TPHYS_SUCCESS == rc);
return p;
}
void CloseConnectModem(CNullModem *p)
{
if (NULL != p)
{
TPhysicalError rc;
rc = p->TPhysUnlisten();
ASSERT(TPHYS_SUCCESS == rc);
rc = p->TPhysDisconnect();
ASSERT(TPHYS_SUCCESS == rc);
rc = p->TPhysTerminate();
ASSERT(TPHYS_SUCCESS == rc);
delete p;
}
}
#endif
#endif // TEST_PLUGABLE