Make a filtering decision about a chunk of inbound data.
NEFilterFlow object containing information about the flow.
An unsigned integer containing the offset of the data stored in
readBytes. This offset is measured from the beginning of the flow’s inbound data.
NSData object containing the data to be filtered.
NEFilterDataVerdict object indicating how the system should handle the chunk of data and all subsequent inbound data for the flow.
NEFilterDataProvider subclasses must override this method.
Filtering Network Content
Make a filtering decision for a newly-created flow of network content.