internal static bool IsExtensionHeader(IpV4Protocol nextHeader)
{
if (IpV6ExtensionHeaderStandard.IsStandard(nextHeader))
{
return(true);
}
switch (nextHeader)
{
case IpV4Protocol.EncapsulatingSecurityPayload: // 50
case IpV4Protocol.AuthenticationHeader: // 51
return(true);
default:
return(false);
}
}
internal static IpV6ExtensionHeader CreateInstance(IpV4Protocol nextHeader, DataSegment extensionHeaderData, out int numBytesRead)
{
if (IpV6ExtensionHeaderStandard.IsStandard(nextHeader))
{
return(IpV6ExtensionHeaderStandard.CreateInstanceStandard(nextHeader, extensionHeaderData, out numBytesRead));
}
switch (nextHeader)
{
case IpV4Protocol.EncapsulatingSecurityPayload: // 50
return(IpV6ExtensionHeaderEncapsulatingSecurityPayload.CreateInstance(extensionHeaderData, out numBytesRead));
case IpV4Protocol.AuthenticationHeader: // 51
return(IpV6ExtensionHeaderAuthentication.CreateInstance(extensionHeaderData, out numBytesRead));
default:
throw new InvalidOperationException("Invalid next header value" + nextHeader);
}
}