public static unsafe int QueryContextAttributes(SafeDeleteContext phContext, Interop.SspiCli.ContextAttribute contextAttribute, byte *buffer, SafeHandle?refHandle)
{
int status = (int)Interop.SECURITY_STATUS.InvalidHandle;
try
{
bool ignore = false;
phContext.DangerousAddRef(ref ignore);
status = Interop.SspiCli.QueryContextAttributesW(ref phContext._handle, contextAttribute, buffer);
}
finally
{
phContext.DangerousRelease();
}
if (status == 0 && refHandle != null)
{
if (refHandle is SafeFreeContextBuffer)
{
((SafeFreeContextBuffer)refHandle).Set(*(IntPtr *)buffer);
}
else
{
((SafeFreeCertContext)refHandle).Set(*(IntPtr *)buffer);
}
}
if (status != 0)
{
refHandle?.SetHandleAsInvalid();
}
return(status);
}
private static void CloseInvalidOutSafeHandleCritical(SafeHandle handle)
{
if (handle != null)
{
handle.SetHandleAsInvalid();
}
}
internal static void CloseInvalidOutSafeHandle(SafeHandle handle)
{
if (handle != null)
{
handle.SetHandleAsInvalid();
}
}
public void Reset()
{
if (_findHandle.IsInvalid)
{
return;
}
_findHandle.Close();
_findHandle.SetHandleAsInvalid();
}
public static unsafe int QueryContextAttributes(SafeDeleteContext phContext, ContextAttribute contextAttribute, byte *buffer, SafeHandle refHandle)
{
int num = -2146893055;
bool success = false;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
phContext.DangerousAddRef(ref success);
}
catch (Exception exception)
{
if (success)
{
phContext.DangerousRelease();
success = false;
}
if (!(exception is ObjectDisposedException))
{
throw;
}
}
finally
{
if (success)
{
num = QueryContextAttributesW(ref phContext._handle, contextAttribute, (void *)buffer);
phContext.DangerousRelease();
}
if ((num == 0) && (refHandle != null))
{
if (refHandle is SafeFreeContextBuffer)
{
if (contextAttribute == ContextAttribute.SessionKey)
{
IntPtr ptr = Marshal.ReadIntPtr(new IntPtr((void *)buffer), SecPkgContext_SessionKey.SessionkeyOffset);
((SafeFreeContextBuffer)refHandle).Set(ptr);
}
else
{
((SafeFreeContextBuffer)refHandle).Set(*((IntPtr *)buffer));
}
}
else
{
((SafeFreeCertContext)refHandle).Set(*((IntPtr *)buffer));
}
}
if ((num != 0) && (refHandle != null))
{
refHandle.SetHandleAsInvalid();
}
}
return(num);
}
static void CloseInvalidOutSafeHandleCritical(SafeHandle handle)
{
// Workaround for 64-bit CLR bug VSWhidbey 546830 - sometimes invalid SafeHandles come back null.
if (handle != null)
{
Fx.Assert(handle.IsInvalid, "CloseInvalidOutSafeHandle called with a valid handle!");
// Calls SuppressFinalize.
handle.SetHandleAsInvalid();
}
}
static void CloseInvalidOutSafeHandleCritical(SafeHandle handle)
{
// Workaround for 64-bit CLR
if (handle != null)
{
Fx.Assert(handle.IsInvalid, "CloseInvalidOutSafeHandle called with a valid handle!");
// Calls SuppressFinalize.
handle.SetHandleAsInvalid();
}
}
[SuppressMessage(FxCop.Category.Security, FxCop.Rule.TransparentMethodsMustNotReferenceCriticalCode)] // we got APTCA approval with no requirement to fix this transparency warning
internal static void CloseInvalidOutSafeHandle(SafeHandle handle)
{
// Workaround for 64-bit CLR bug VSWhidbey 546830 - sometimes invalid SafeHandles come back null.
if (handle != null)
{
#pragma warning disable 618
Fx.Assert(handle.IsInvalid, "CloseInvalidOutSafeHandle called with a valid handle!");
#pragma warning restore 618
// Calls SuppressFinalize.
handle.SetHandleAsInvalid();
}
}
[SuppressMessage(FxCop.Category.Security, FxCop.Rule.TransparentMethodsMustNotReferenceCriticalCode)] // we got APTCA approval with no requirement to fix this transparency warning
internal static void CloseInvalidOutSafeHandle(SafeHandle handle)
{
// Workaround for 64-bit CLR
if (handle != null)
{
#pragma warning disable 618
Fx.Assert(handle.IsInvalid, "CloseInvalidOutSafeHandle called with a valid handle!");
#pragma warning restore 618
// Calls SuppressFinalize.
handle.SetHandleAsInvalid();
}
}
private static unsafe int QueryContextAttributes_SCHANNEL(SafeDeleteContext phContext, ContextAttribute contextAttribute, byte *buffer, SafeHandle refHandle)
{
int num = -2146893055;
bool success = false;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
phContext.DangerousAddRef(ref success);
}
catch (Exception exception)
{
if (success)
{
phContext.DangerousRelease();
success = false;
}
if (!(exception is ObjectDisposedException))
{
throw;
}
}
finally
{
if (success)
{
num = UnsafeNclNativeMethods.SafeNetHandles_SCHANNEL.QueryContextAttributesA(ref phContext._handle, contextAttribute, (void *)buffer);
phContext.DangerousRelease();
}
if ((num == 0) && (refHandle != null))
{
if (refHandle is SafeFreeContextBuffer)
{
((SafeFreeContextBuffer)refHandle).Set(*((IntPtr *)buffer));
}
else
{
((SafeFreeCertContext)refHandle).Set(*((IntPtr *)buffer));
}
}
if ((num != 0) && (refHandle != null))
{
refHandle.SetHandleAsInvalid();
}
}
return(num);
}
protected override void Dispose(bool disposing)
{
// Nothing will be done differently based on whether we are disposing vs. finalizing.
lock (this)
{
if (m_handle != null && !m_handle.IsInvalid)
{
if (disposing)
{
CancelPendingIO();
}
m_handle.Close();
m_handle.SetHandleAsInvalid();
}
}
base.Dispose(disposing);
}
private unsafe static int QueryContextAttributes_SECURITY(
SafeDeleteContext phContext,
Interop.Secur32.ContextAttribute contextAttribute,
byte *buffer,
SafeHandle refHandle)
{
int status = (int)Interop.SecurityStatus.InvalidHandle;
try
{
bool ignore = false;
phContext.DangerousAddRef(ref ignore);
status = Interop.Secur32.QueryContextAttributesW(ref phContext._handle, contextAttribute, buffer);
}
finally
{
phContext.DangerousRelease();
}
if (status == 0 && refHandle != null)
{
if (refHandle is SafeFreeContextBuffer)
{
((SafeFreeContextBuffer)refHandle).Set(*(IntPtr *)buffer);
}
else
{
((SafeFreeCertContext)refHandle).Set(*(IntPtr *)buffer);
}
}
if (status != 0 && refHandle != null)
{
refHandle.SetHandleAsInvalid();
}
return(status);
}
/// <inheritdoc />
public void SetHandleAsInvalid()
{
_instance.SetHandleAsInvalid();
}