private static AdjustPrivilegeResult AdjustPrivilege(
AccessTokenHandle accessTokenHandle,
Luid luid,
PrivilegeAttributes privilegeAttributes)
{
TokenPrivilege newState = new TokenPrivilege
{
PrivilegeCount = 1,
Privilege = new LuidAndAttributes
{
Attributes = privilegeAttributes,
Luid = luid
}
};
TokenPrivilege previousState = new TokenPrivilege();
int returnLength = 0;
if (!NativeMethods.AdjustTokenPrivileges(
accessTokenHandle,
false,
ref newState,
Marshal.SizeOf(previousState),
ref previousState,
ref returnLength))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
return (AdjustPrivilegeResult)previousState.PrivilegeCount;
}
private static string GetPrivilegeName(Luid luid)
{
StringBuilder nameBuilder = new StringBuilder();
int nameLength = 0;
if (NativeMethods.LookupPrivilegeName(String.Empty, ref luid, nameBuilder, ref nameLength))
{
return String.Empty;
}
int lastWin32Error = Marshal.GetLastWin32Error();
if (lastWin32Error != NativeMethods.ErrorInsufficientBuffer)
{
throw new Win32Exception(lastWin32Error);
}
nameBuilder.EnsureCapacity(nameLength);
if (!NativeMethods.LookupPrivilegeName(String.Empty, ref luid, nameBuilder, ref nameLength))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
return nameBuilder.ToString();
}
private static Luid GetLuid(Privilege privilege)
{
if (LuidDictionary.ContainsKey(privilege))
{
return LuidDictionary[privilege];
}
Luid luid = new Luid();
if (!NativeMethods.LookupPrivilegeValue(String.Empty, PrivilegeConstantsDictionary[privilege], ref luid))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
LuidDictionary.Add(privilege, luid);
return luid;
}
