public static unsafe object QueryContextAttributes(SafeDeleteContext securityContext, ContextAttribute contextAttribute)
{
int size = IntPtr.Size;
Type handleType = null;
switch (contextAttribute)
{
case ContextAttribute.Sizes:
size = SecSizes.SizeOf;
break;
case ContextAttribute.Names:
handleType = typeof(SafeFreeContextBuffer);
break;
case ContextAttribute.Lifespan:
size = LifeSpan_Struct.Size;
break;
case ContextAttribute.StreamSizes:
size = StreamSizes.SizeOf;
break;
case ContextAttribute.SessionKey:
handleType = typeof(SafeFreeContextBuffer);
size = SecPkgContext_SessionKey.Size;
break;
case ContextAttribute.PackageInfo:
handleType = typeof(SafeFreeContextBuffer);
break;
case ContextAttribute.NegotiationInfo:
handleType = typeof(SafeFreeContextBuffer);
size = Marshal.SizeOf(typeof(NegotiationInfo));
break;
case ContextAttribute.Flags:
break;
case ContextAttribute.RemoteCertificate:
handleType = typeof(SafeFreeCertContext);
break;
case ContextAttribute.LocalCertificate:
handleType = typeof(SafeFreeCertContext);
break;
case ContextAttribute.ConnectionInfo:
size = Marshal.SizeOf(typeof(SslConnectionInfo));
break;
default:
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidEnumArgumentException("contextAttribute", (int) contextAttribute, typeof(ContextAttribute)));
}
SafeHandle refHandle = null;
object obj2 = null;
try
{
byte[] buffer = new byte[size];
int error = QueryContextAttributes(securityContext, contextAttribute, buffer, handleType, out refHandle);
if (error != 0)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error));
}
switch (contextAttribute)
{
case ContextAttribute.Sizes:
break;
case ContextAttribute.Names:
return Marshal.PtrToStringUni(refHandle.DangerousGetHandle());
case ContextAttribute.Lifespan:
return new LifeSpan(buffer);
case ContextAttribute.DceInfo:
case (ContextAttribute.StreamSizes | ContextAttribute.Names):
case ContextAttribute.Authority:
case (ContextAttribute.Authority | ContextAttribute.Names):
case ((ContextAttribute) 8):
case (ContextAttribute.PackageInfo | ContextAttribute.Names):
case (ContextAttribute.NegotiationInfo | ContextAttribute.Names):
return obj2;
case ContextAttribute.StreamSizes:
return new StreamSizes(buffer);
case ContextAttribute.SessionKey:
try
{
byte[] buffer4;
if (((buffer4 = buffer) == null) || (buffer4.Length == 0))
{
fixed (IntPtr* ptrRef2 = null)
{
}
}
obj2 = new SecuritySessionKeyClass(refHandle, Marshal.ReadInt32(new IntPtr((void*) ptrRef2)));
}
finally
{
ptrRef2 = null;
}
return obj2;
case ContextAttribute.PackageInfo:
return new SecurityPackageInfoClass(refHandle, 0);
case ContextAttribute.NegotiationInfo:
try
{
byte[] buffer3;
if (((buffer3 = buffer) == null) || (buffer3.Length == 0))
{
fixed (IntPtr* ptrRef = null)
{
}
}
return new NegotiationInfoClass(refHandle, Marshal.ReadInt32(new IntPtr((void*) ptrRef), NegotiationInfo.NegotiationStateOffset));
}
finally
{
ptrRef = null;
}
goto Label_026A;
case ContextAttribute.Flags:
try
{
fixed (byte* numRef = buffer)
{
return Marshal.ReadInt32(new IntPtr((void*) numRef));
}
}
finally
{
numRef = null;
}
break;
case ContextAttribute.RemoteCertificate:
case ContextAttribute.LocalCertificate:
goto Label_026A;
case ContextAttribute.ConnectionInfo:
return new SslConnectionInfo(buffer);
default:
return obj2;
}
return new SecSizes(buffer);
Label_026A:
obj2 = refHandle;
refHandle = null;
return obj2;
}
finally
{
if (refHandle != null)
{
refHandle.Close();
}
}
return obj2;
}
public static unsafe object QueryContextAttributes(SafeDeleteContext securityContext, ContextAttribute contextAttribute)
{
int size = IntPtr.Size;
Type handleType = null;
switch (contextAttribute)
{
case ContextAttribute.Sizes:
size = SecSizes.SizeOf;
break;
case ContextAttribute.Names:
handleType = typeof(SafeFreeContextBuffer);
break;
case ContextAttribute.Lifespan:
size = LifeSpan_Struct.Size;
break;
case ContextAttribute.StreamSizes:
size = StreamSizes.SizeOf;
break;
case ContextAttribute.SessionKey:
handleType = typeof(SafeFreeContextBuffer);
size = SecPkgContext_SessionKey.Size;
break;
case ContextAttribute.PackageInfo:
handleType = typeof(SafeFreeContextBuffer);
break;
case ContextAttribute.NegotiationInfo:
handleType = typeof(SafeFreeContextBuffer);
size = Marshal.SizeOf(typeof(NegotiationInfo));
break;
case ContextAttribute.Flags:
break;
case ContextAttribute.RemoteCertificate:
handleType = typeof(SafeFreeCertContext);
break;
case ContextAttribute.LocalCertificate:
handleType = typeof(SafeFreeCertContext);
break;
case ContextAttribute.ConnectionInfo:
size = Marshal.SizeOf(typeof(SslConnectionInfo));
break;
default:
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidEnumArgumentException("contextAttribute", (int)contextAttribute, typeof(ContextAttribute)));
}
SafeHandle refHandle = null;
object obj2 = null;
try
{
byte[] buffer = new byte[size];
int error = QueryContextAttributes(securityContext, contextAttribute, buffer, handleType, out refHandle);
if (error != 0)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error));
}
switch (contextAttribute)
{
case ContextAttribute.Sizes:
break;
case ContextAttribute.Names:
return(Marshal.PtrToStringUni(refHandle.DangerousGetHandle()));
case ContextAttribute.Lifespan:
return(new LifeSpan(buffer));
case ContextAttribute.DceInfo:
case (ContextAttribute.StreamSizes | ContextAttribute.Names):
case ContextAttribute.Authority:
case (ContextAttribute.Authority | ContextAttribute.Names):
case ((ContextAttribute)8):
case (ContextAttribute.PackageInfo | ContextAttribute.Names):
case (ContextAttribute.NegotiationInfo | ContextAttribute.Names):
return(obj2);
case ContextAttribute.StreamSizes:
return(new StreamSizes(buffer));
case ContextAttribute.SessionKey:
try
{
byte[] buffer4;
if (((buffer4 = buffer) == null) || (buffer4.Length == 0))
{
fixed(IntPtr *ptrRef2 = null)
{
}
}
obj2 = new SecuritySessionKeyClass(refHandle, Marshal.ReadInt32(new IntPtr((void *)ptrRef2)));
}
finally
{
ptrRef2 = null;
}
return(obj2);
case ContextAttribute.PackageInfo:
return(new SecurityPackageInfoClass(refHandle, 0));
case ContextAttribute.NegotiationInfo:
try
{
byte[] buffer3;
if (((buffer3 = buffer) == null) || (buffer3.Length == 0))
{
fixed(IntPtr *ptrRef = null)
{
}
}
return(new NegotiationInfoClass(refHandle, Marshal.ReadInt32(new IntPtr((void *)ptrRef), NegotiationInfo.NegotiationStateOffset)));
}
finally
{
ptrRef = null;
}
goto Label_026A;
case ContextAttribute.Flags:
try
{
fixed(byte *numRef = buffer)
{
return(Marshal.ReadInt32(new IntPtr((void *)numRef)));
}
}
finally
{
numRef = null;
}
break;
case ContextAttribute.RemoteCertificate:
case ContextAttribute.LocalCertificate:
goto Label_026A;
case ContextAttribute.ConnectionInfo:
return(new SslConnectionInfo(buffer));
default:
return(obj2);
}
return(new SecSizes(buffer));
Label_026A:
obj2 = refHandle;
refHandle = null;
return(obj2);
}
finally
{
if (refHandle != null)
{
refHandle.Close();
}
}
return(obj2);
}
public static unsafe object QueryContextAttributes(
SafeDeleteContext securityContext,
ContextAttribute contextAttribute)
{
int nativeBlockSize = IntPtr.Size;
Type handleType = null;
switch (contextAttribute)
{
case ContextAttribute.Flags:
break;
case ContextAttribute.Sizes:
nativeBlockSize = SecSizes.SizeOf;
break;
case ContextAttribute.StreamSizes:
nativeBlockSize = StreamSizes.SizeOf;
break;
case ContextAttribute.Names:
handleType = typeof(SafeFreeContextBuffer);
break;
case ContextAttribute.PackageInfo:
handleType = typeof(SafeFreeContextBuffer);
break;
case ContextAttribute.NegotiationInfo:
handleType = typeof(SafeFreeContextBuffer);
nativeBlockSize = Marshal.SizeOf(typeof(NegotiationInfo));
break;
case ContextAttribute.RemoteCertificate:
handleType = typeof(SafeFreeCertContext);
break;
case ContextAttribute.LocalCertificate:
handleType = typeof(SafeFreeCertContext);
break;
case ContextAttribute.ConnectionInfo:
nativeBlockSize = Marshal.SizeOf(typeof(SslConnectionInfo));
break;
case ContextAttribute.Lifespan:
nativeBlockSize = LifeSpan_Struct.Size;
break;
case ContextAttribute.SessionKey:
handleType = typeof(SafeFreeContextBuffer);
nativeBlockSize = SecPkgContext_SessionKey.Size;
break;
default:
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidEnumArgumentException("contextAttribute", (int)contextAttribute,
typeof(ContextAttribute)));
}
SafeHandle sspiHandle = null;
object attribute = null;
try
{
byte[] nativeBuffer = new byte[nativeBlockSize];
int errorCode = QueryContextAttributes(securityContext, contextAttribute, nativeBuffer, handleType, out sspiHandle);
if (errorCode != 0)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(errorCode));
}
switch (contextAttribute)
{
case ContextAttribute.Flags:
fixed(byte *pnativeBuffer = nativeBuffer)
{
attribute = (object)Marshal.ReadInt32(new IntPtr(pnativeBuffer));
}
break;
case ContextAttribute.Sizes:
attribute = new SecSizes(nativeBuffer);
break;
case ContextAttribute.StreamSizes:
attribute = new StreamSizes(nativeBuffer);
break;
case ContextAttribute.Names:
attribute = Marshal.PtrToStringUni(sspiHandle.DangerousGetHandle());
break;
case ContextAttribute.PackageInfo:
attribute = new SecurityPackageInfoClass(sspiHandle, 0);
break;
case ContextAttribute.NegotiationInfo:
unsafe
{
fixed(void *ptr = nativeBuffer)
{
attribute = new NegotiationInfoClass(sspiHandle, Marshal.ReadInt32(new IntPtr(ptr), NegotiationInfo.NegotiationStateOffset));
}
}
break;
case ContextAttribute.LocalCertificate:
goto case ContextAttribute.RemoteCertificate;
case ContextAttribute.RemoteCertificate:
attribute = sspiHandle;
sspiHandle = null;
break;
case ContextAttribute.ConnectionInfo:
attribute = new SslConnectionInfo(nativeBuffer);
break;
case ContextAttribute.Lifespan:
attribute = new LifeSpan(nativeBuffer);
break;
case ContextAttribute.SessionKey:
unsafe
{
fixed(void *ptr = nativeBuffer)
{
attribute = new SecuritySessionKeyClass(sspiHandle, Marshal.ReadInt32(new IntPtr(ptr)));
}
}
break;
default:
// will return null
break;
}
}
finally
{
if (sspiHandle != null)
{
sspiHandle.Close();
}
}
return(attribute);
}
public static unsafe object QueryContextAttributes(
SafeDeleteContext securityContext,
ContextAttribute contextAttribute)
{
int nativeBlockSize = IntPtr.Size;
Type handleType = null;
switch (contextAttribute)
{
case ContextAttribute.Flags:
break;
case ContextAttribute.Sizes:
nativeBlockSize = SecSizes.SizeOf;
break;
case ContextAttribute.StreamSizes:
nativeBlockSize = StreamSizes.SizeOf;
break;
case ContextAttribute.Names:
handleType = typeof(SafeFreeContextBuffer);
break;
case ContextAttribute.PackageInfo:
handleType = typeof(SafeFreeContextBuffer);
break;
case ContextAttribute.NegotiationInfo:
handleType = typeof(SafeFreeContextBuffer);
nativeBlockSize = Marshal.SizeOf(typeof(NegotiationInfo));
break;
case ContextAttribute.RemoteCertificate:
handleType = typeof(SafeFreeCertContext);
break;
case ContextAttribute.LocalCertificate:
handleType = typeof(SafeFreeCertContext);
break;
case ContextAttribute.ConnectionInfo:
nativeBlockSize = Marshal.SizeOf(typeof(SslConnectionInfo));
break;
case ContextAttribute.Lifespan:
nativeBlockSize = LifeSpan_Struct.Size;
break;
case ContextAttribute.SessionKey:
handleType = typeof(SafeFreeContextBuffer);
nativeBlockSize = SecPkgContext_SessionKey.Size;
break;
default:
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidEnumArgumentException("contextAttribute", (int)contextAttribute,
typeof(ContextAttribute)));
}
SafeHandle sspiHandle = null;
object attribute = null;
try
{
byte[] nativeBuffer = new byte[nativeBlockSize];
int errorCode = QueryContextAttributes(securityContext, contextAttribute, nativeBuffer, handleType, out sspiHandle);
if (errorCode != 0)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(errorCode));
}
switch (contextAttribute)
{
case ContextAttribute.Flags:
fixed (byte* pnativeBuffer = nativeBuffer)
{
attribute = (object)Marshal.ReadInt32(new IntPtr(pnativeBuffer));
}
break;
case ContextAttribute.Sizes:
attribute = new SecSizes(nativeBuffer);
break;
case ContextAttribute.StreamSizes:
attribute = new StreamSizes(nativeBuffer);
break;
case ContextAttribute.Names:
attribute = Marshal.PtrToStringUni(sspiHandle.DangerousGetHandle());
break;
case ContextAttribute.PackageInfo:
attribute = new SecurityPackageInfoClass(sspiHandle, 0);
break;
case ContextAttribute.NegotiationInfo:
unsafe
{
fixed (void* ptr = nativeBuffer)
{
attribute = new NegotiationInfoClass(sspiHandle, Marshal.ReadInt32(new IntPtr(ptr), NegotiationInfo.NegotiationStateOffset));
}
}
break;
case ContextAttribute.LocalCertificate:
goto case ContextAttribute.RemoteCertificate;
case ContextAttribute.RemoteCertificate:
attribute = sspiHandle;
sspiHandle = null;
break;
case ContextAttribute.ConnectionInfo:
attribute = new SslConnectionInfo(nativeBuffer);
break;
case ContextAttribute.Lifespan:
attribute = new LifeSpan(nativeBuffer);
break;
case ContextAttribute.SessionKey:
unsafe
{
fixed (void* ptr = nativeBuffer)
{
attribute = new SecuritySessionKeyClass(sspiHandle, Marshal.ReadInt32(new IntPtr(ptr)));
}
}
break;
default:
// will return null
break;
}
}
finally
{
if (sspiHandle != null)
{
sspiHandle.Close();
}
}
return attribute;
}