public T GetInfo <T>(TOKEN_INFORMATION_CLASS type)
{
int cbSize = Marshal.SizeOf(typeof(T));
IntPtr pType = Marshal.AllocHGlobal(cbSize);
try
{
// Retrieve token information.
if (!NativeMethods.GetTokenInformation(this, type, pType, cbSize, out cbSize))
{
throw new System.ComponentModel.Win32Exception();
}
// Marshal from native to .NET.
switch (type)
{
case TOKEN_INFORMATION_CLASS.TokenType:
case TOKEN_INFORMATION_CLASS.TokenImpersonationLevel:
case TOKEN_INFORMATION_CLASS.TokenSessionId:
case TOKEN_INFORMATION_CLASS.TokenSandBoxInert:
case TOKEN_INFORMATION_CLASS.TokenOrigin:
case TOKEN_INFORMATION_CLASS.TokenElevationType:
case TOKEN_INFORMATION_CLASS.TokenHasRestrictions:
case TOKEN_INFORMATION_CLASS.TokenUIAccess:
case TOKEN_INFORMATION_CLASS.TokenVirtualizationAllowed:
case TOKEN_INFORMATION_CLASS.TokenVirtualizationEnabled:
return((T)Convert.ChangeType(Marshal.ReadInt32(pType), typeof(T)));
case TOKEN_INFORMATION_CLASS.TokenLinkedToken:
return((T)Convert.ChangeType(Marshal.ReadIntPtr(pType), typeof(T)));
case TOKEN_INFORMATION_CLASS.TokenUser:
case TOKEN_INFORMATION_CLASS.TokenGroups:
case TOKEN_INFORMATION_CLASS.TokenPrivileges:
case TOKEN_INFORMATION_CLASS.TokenOwner:
case TOKEN_INFORMATION_CLASS.TokenPrimaryGroup:
case TOKEN_INFORMATION_CLASS.TokenDefaultDacl:
case TOKEN_INFORMATION_CLASS.TokenSource:
case TOKEN_INFORMATION_CLASS.TokenStatistics:
case TOKEN_INFORMATION_CLASS.TokenRestrictedSids:
case TOKEN_INFORMATION_CLASS.TokenGroupsAndPrivileges:
case TOKEN_INFORMATION_CLASS.TokenElevation:
case TOKEN_INFORMATION_CLASS.TokenAccessInformation:
case TOKEN_INFORMATION_CLASS.TokenIntegrityLevel:
case TOKEN_INFORMATION_CLASS.TokenMandatoryPolicy:
case TOKEN_INFORMATION_CLASS.TokenLogonSid:
return((T)Marshal.PtrToStructure(pType, typeof(T)));
case TOKEN_INFORMATION_CLASS.TokenSessionReference:
case TOKEN_INFORMATION_CLASS.TokenAuditPolicy:
default:
return(default(T));
}
}
finally
{
Marshal.FreeHGlobal(pType);
}
}
