windows-nt/Source/XPSP1/NT/net/layer2svc/eapol/service/eldialog.c

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2020-09-26 03:20:57 -05:00
/*++
Copyright (c) 2000, Microsoft Corporation
Module Name:
eldialog.cpp
Abstract:
Module to handle the communication from 802.1X state machine to netshell
Revision History:
sachins, March 20, 2001, Created
--*/
#include "pcheapol.h"
#pragma hdrstop
#include <netconp.h>
#include <dbt.h>
#include "eldialog.h"
//
// WZCNetmanConnectionStatusChanged
//
// Description:
//
// Function called to update NCS status with netman
//
// Arguments:
// pGUIDConn - Interface GUID
// ncs - NETCON_STATUS of GUID
//
// Return values:
// HRESULT
//
HRESULT
WZCNetmanConnectionStatusChanged (
IN GUID *pGUIDConn,
IN NETCON_STATUS ncs
)
{
HRESULT hr = S_OK;
INetConnectionRefresh *pNetmanNotify = NULL;
TRACE0 (NOTIFY, "WZCNetmanConnectionStatusChanged: Entered");
if (!g_fTrayIconReady)
{
return hr;
}
hr = CoInitializeEx (NULL, COINIT_MULTITHREADED);
if (SUCCEEDED (hr))
{
hr = CoCreateInstance (
&CLSID_ConnectionManager,
NULL,
CLSCTX_ALL,
&IID_INetConnectionRefresh,
(LPVOID *)&pNetmanNotify);
if (SUCCEEDED (hr))
{
TRACE0 (NOTIFY, "QueueEvent: CoCreateInstance succeeded");
pNetmanNotify->lpVtbl->ConnectionStatusChanged (
pNetmanNotify, pGUIDConn, ncs);
pNetmanNotify->lpVtbl->Release (pNetmanNotify);
}
else
{
TRACE0 (NOTIFY, "ConnectionStatusChanged: CoCreateInstance failed");
}
CoUninitialize ();
}
else
{
TRACE0 (NOTIFY, "ConnectionStatusChanged: CoInitializeEx failed");
}
TRACE0 (NOTIFY, "ConnectionStatusChanged completed");
return hr;
}
//
// WZCNetmanShowBalloon
//
// Description:
//
// Function called to display balloon on tray icon
//
// Arguments:
// pGUIDConn - Interface GUID
// pszCookie - Cookie for the transaction
// pszBalloonText - Balloon text to be displayed
//
// Return values:
// HRESULT
//
HRESULT
WZCNetmanShowBalloon (
IN GUID *pGUIDConn,
IN BSTR pszCookie,
IN BSTR pszBalloonText
)
{
HRESULT hr = S_OK;
INetConnectionRefresh *pNetmanNotify = NULL;
TRACE0 (NOTIFY, "WZCNetmanShowBalloon: Entered");
if (!g_fTrayIconReady)
{
return hr;
}
hr = CoInitializeEx (NULL, COINIT_MULTITHREADED);
if (SUCCEEDED (hr))
{
hr = CoCreateInstance (
&CLSID_ConnectionManager,
NULL,
CLSCTX_ALL,
&IID_INetConnectionRefresh,
(LPVOID *)&pNetmanNotify);
if (SUCCEEDED (hr))
{
TRACE0 (NOTIFY, "WZCNetmanShowBalloon: CoCreateInstance succeeded");
pNetmanNotify->lpVtbl->ShowBalloon
(pNetmanNotify, pGUIDConn, pszCookie, pszBalloonText);
pNetmanNotify->lpVtbl->Release (pNetmanNotify);
}
else
{
TRACE0 (NOTIFY, "WZCNetmanShowBalloon: CoCreateInstance failed");
}
CoUninitialize ();
}
else
{
TRACE0 (NOTIFY, "WZCNetmanShowBalloon: CoInitializeEx failed");
}
TRACE0 (NOTIFY, "WZCNetmanShowBalloon completed");
return hr;
}
//
// EAPOLQueryGUIDNCSState
//
// Purpose: Called by Netman module query the ncs state of the
// GUID
//
// Arguments:
// pGuidConn - Interface GUID
// pncs - NCS status of the interface
//
// Returns:
// S_OK - no error
// !S_OK - error
//
HRESULT
EAPOLQueryGUIDNCSState (
IN GUID * pGuidConn,
OUT NETCON_STATUS * pncs
)
{
WCHAR wszGuid[GUID_STRING_LEN_WITH_TERM];
CHAR szGuid[GUID_STRING_LEN_WITH_TERM];
EAPOL_PCB *pPCB = NULL;
DWORD dwRetCode = NO_ERROR;
HRESULT hr = S_OK;
InterlockedIncrement (&g_lWorkerThreads);
do
{
if (g_dwModulesStarted != ALL_MODULES_STARTED)
{
hr = S_FALSE;
break;
}
StringFromGUID2 (pGuidConn, wszGuid, GUID_STRING_LEN_WITH_TERM);
ACQUIRE_WRITE_LOCK (&g_PCBLock);
pPCB = ElGetPCBPointerFromPortGUID (wszGuid);
if (pPCB)
{
EAPOL_REFERENCE_PORT (pPCB);
}
RELEASE_WRITE_LOCK (&g_PCBLock);
if (pPCB == NULL)
{
hr = S_FALSE;
break;
}
ACQUIRE_WRITE_LOCK (&(pPCB->rwLock));
if (pPCB->fIsRemoteEndEAPOLAware)
{
switch (pPCB->State)
{
case EAPOLSTATE_LOGOFF:
hr = S_FALSE;
break;
case EAPOLSTATE_DISCONNECTED:
if (pPCB->dwAuthFailCount >= pPCB->dwTotalMaxAuthFailCount)
{
*pncs = NCS_AUTHENTICATION_FAILED;
break;
}
hr = S_FALSE;
break;
case EAPOLSTATE_CONNECTING:
hr = S_FALSE;
break;
case EAPOLSTATE_ACQUIRED:
*pncs = NCS_CREDENTIALS_REQUIRED;
break;
case EAPOLSTATE_AUTHENTICATING:
*pncs = NCS_AUTHENTICATING;
break;
case EAPOLSTATE_HELD:
*pncs = NCS_AUTHENTICATION_FAILED;
break;
case EAPOLSTATE_AUTHENTICATED:
*pncs = NCS_AUTHENTICATION_SUCCEEDED;
break;
default:
hr = S_FALSE;
break;
}
}
else
{
hr = S_FALSE;
}
RELEASE_WRITE_LOCK (&(pPCB->rwLock));
EAPOL_DEREFERENCE_PORT (pPCB);
}
while (FALSE);
InterlockedDecrement (&g_lWorkerThreads);
return hr;
}
//
// EAPOLTrayIconReady
//
// Purpose: Called by Netman module to inform about Tray being
// ready for notifications from WZCSVC
//
// Arguments:
// pszUserName - Username of the user logged in on the desktop
//
// Returns:
// NONE
//
VOID
EAPOLTrayIconReady (
IN const WCHAR * pwszUserName
)
{
BOOLEAN fDecrWorkerThreadCount = FALSE;
PVOID pvContext = NULL;
DWORD dwRetCode = NO_ERROR;
TRACE1 (NOTIFY, "EAPOLTrayIconReady: Advise username = %ws", pwszUserName);
do
{
pvContext = (VOID *) MALLOC ((wcslen(pwszUserName)+1)*sizeof(WCHAR));
if (pvContext == NULL)
{
dwRetCode = ERROR_NOT_ENOUGH_MEMORY;
TRACE0 (NOTIFY, "EAPOLTrayIconReady: MALLOC failed for pvContext");
break;
}
memcpy (pvContext, (PVOID)pwszUserName, (wcslen(pwszUserName)+1)*sizeof(WCHAR));
InterlockedIncrement (&g_lWorkerThreads);
fDecrWorkerThreadCount = TRUE;
if (!QueueUserWorkItem (
(LPTHREAD_START_ROUTINE)EAPOLTrayIconReadyWorker,
(PVOID)pvContext,
WT_EXECUTELONGFUNCTION))
{
dwRetCode = GetLastError();
TRACE1 (NOTIFY, "EAPOLTrayIconReady: QueueUserWorkItem failed with error %ld",
dwRetCode);
break;
}
else
{
fDecrWorkerThreadCount = FALSE;
}
}
while (FALSE);
if (fDecrWorkerThreadCount)
{
InterlockedDecrement (&g_lWorkerThreads);
}
return;
}
//
// EAPOLTrayIconReadyWorker
//
// Purpose: Called by Netman module to inform about Tray being
// ready for notifications from WZCSVC
//
// Arguments:
// pszUserName - Username of the user logged in on the desktop
//
// Returns:
// NONE
//
DWORD
WINAPI
EAPOLTrayIconReadyWorker (
IN PVOID pvContext
)
{
HANDLE hToken = NULL;
WCHAR *pwszUserName = NULL;
WCHAR *pwszActiveUserName = NULL;
DWORD dwLoop = 0;
DWORD dwRetCode = NO_ERROR;
do
{
pwszUserName = (WCHAR *)pvContext;
TRACE1 (NOTIFY, "EAPOLTrayIconReadyWorker: Advise username = %ws", pwszUserName);
// Loop 3 times, since there have been timing issues between
// notification coming through and the call failing
while ((dwLoop++) < 3)
{
dwRetCode = NO_ERROR;
Sleep (1000);
if (g_dwCurrentSessionId != 0xffffffff)
{
if (hToken != NULL)
{
if (!CloseHandle (hToken))
{
dwRetCode = GetLastError ();
TRACE1 (NOTIFY, "EAPOLTrayIconReadyWorker: CloseHandle failed with error (%ld)",
dwRetCode);
dwRetCode = NO_ERROR;
}
hToken = NULL;
}
if (pwszActiveUserName != NULL)
{
FREE (pwszActiveUserName);
pwszActiveUserName = NULL;
}
if ((dwRetCode = ElGetWinStationUserToken (g_dwCurrentSessionId, &hToken))
!= NO_ERROR)
{
TRACE1 (NOTIFY, "EAPOLTrayIconReadyWorker: ElGetWinStationUserToken failed with error %ld",
dwRetCode);
continue;
}
if ((dwRetCode = ElGetLoggedOnUserName (hToken, &pwszActiveUserName))
!= NO_ERROR)
{
TRACE1 (NOTIFY, "EAPOLTrayIconReadyWorker: ElGetLoggedOnUserName failed with error %ld",
dwRetCode);
if (dwRetCode == ERROR_BAD_IMPERSONATION_LEVEL)
{
break;
}
continue;
}
if (!wcscmp (pwszUserName, pwszActiveUserName))
{
TRACE1 (NOTIFY, "EAPOLTrayIconReadyWorker: Tray icon ready for username %ws",
pwszUserName);
g_fTrayIconReady = TRUE;
break;
}
}
else
{
TRACE0 (NOTIFY, "EAPOLTrayIconReadyWorker: No user logged on");
}
} // while
}
while (FALSE);
if (hToken != NULL)
{
CloseHandle (hToken);
}
if (pvContext != NULL)
{
FREE (pvContext);
}
if (pwszActiveUserName != NULL)
{
FREE (pwszActiveUserName);
}
InterlockedDecrement (&g_lWorkerThreads);
return dwRetCode;
}