[WinPrnDev] Using AddMonitor function on Windows 7
- From: Aeliton Germano <aeliton@xxxxxxxxx>
- To: winprndev@xxxxxxxxxxxxx
- Date: Mon, 24 May 2010 22:01:59 -0300
Hello,
I'm trying to install a port monitor from ddk code samples using
AddMonitor function, but I'm getting error. GetLastError returns 5
(ERROR_ACCESS_DENIED).
The msdn docs says that we have to get SeLoadDriverPrivilege, so I'm
using AdjustTokenPrivileges function to set it, but it doesn't work
either.
My function follows. It prints: "Monitor Install Failed with error 5"
void InstallMon()
{
MONITOR_INFO_2 newMonitor = {L"Custom Monitor", NULL, L"ddklocalmon.dll"};
HANDLE procToken;
LUID luid;
TOKEN_PRIVILEGES tp;
if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES
| TOKEN_QUERY, &procToken))
{
cout << "Could not OpenProcessToken :"<< GetLastError() << endl;
return;
}
if (!LookupPrivilegeValue(NULL, SE_LOAD_DRIVER_NAME, &luid))
{
cout << "Could not LookupPrivilegeValue :"<< GetLastError() << endl;
return;
}
tp.PrivilegeCount = 1;
tp.Privileges[0].Luid = luid;
tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
if (!AdjustTokenPrivileges(procToken, FALSE, &tp,
sizeof(TOKEN_PRIVILEGES), (PTOKEN_PRIVILEGES) NULL, (PDWORD)NULL))
{
cout << "Could not AdjustTokenPrivileges :"<< GetLastError() << endl;
return;
}
if (AddMonitor(NULL, 2, (BYTE*)&newMonitor))
{
cout << "Monitor Installed successfully" << endl;
} else {
cout << "Monitor Install Failed with error" << GetLastError() << endl;
}
}
I appreciate any help.
Best Regards,
--
Aeliton G. da Silva
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