/// <summary>
/// Tries to enable the specified privilege.
/// </summary>
/// <param name="privilege">The privilege to enable.</param>
/// <exception cref="PrivilegeException">There was an error while requesting a required privilege.</exception>
/// <remarks>Thanks to Michael S. Muegel for notifying us about a bug in this code.</remarks>
protected static void EnableToken(string privilege)
{
if (!CheckEntryPoint("advapi32.dll", "AdjustTokenPrivileges"))
{
return;
}
IntPtr tokenHandle = IntPtr.Zero;
LUID privilegeLUID = new LUID();
TOKEN_PRIVILEGES newPrivileges = new TOKEN_PRIVILEGES();
TOKEN_PRIVILEGES tokenPrivileges;
if (
OpenProcessToken(Process.GetCurrentProcess().Handle, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, ref tokenHandle) ==
0)
throw new PrivilegeException(FormatError(Marshal.GetLastWin32Error()));
if (LookupPrivilegeValue("", privilege, ref privilegeLUID) == 0)
throw new PrivilegeException(FormatError(Marshal.GetLastWin32Error()));
tokenPrivileges.PrivilegeCount = 1;
tokenPrivileges.Privileges.Attributes = SE_PRIVILEGE_ENABLED;
tokenPrivileges.Privileges.pLuid = privilegeLUID;
int size = 4;
if (
AdjustTokenPrivileges(tokenHandle, 0, ref tokenPrivileges, 4 + (12 * tokenPrivileges.PrivilegeCount),
ref newPrivileges, ref size) == 0)
throw new PrivilegeException(FormatError(Marshal.GetLastWin32Error()));
}
private static extern int AdjustTokenPrivileges(IntPtr TokenHandle, int DisableAllPrivileges,
ref TOKEN_PRIVILEGES NewState, int BufferLength,
ref TOKEN_PRIVILEGES PreviousState, ref int ReturnLength);
private static extern int AdjustTokenPrivileges(IntPtr TokenHandle, int DisableAllPrivileges,
ref TOKEN_PRIVILEGES NewState, int BufferLength,
ref TOKEN_PRIVILEGES PreviousState, ref int ReturnLength);