hpkt

Documentation

Overview

Package hpkt (Host Packet) contains low level primitives for parsing and creating end-host SCION messages.

Currently supports SCION/UDP and SCION/SCMP packets.

Index

• func ParseScnPkt(s *spkt.ScnPkt, b common.RawBytes) (err error)
• func ValidateExtensions(extns []common.Extension) ([]common.Extension, []common.Extension, error)
• func WriteScnPkt(s *spkt.ScnPkt, b common.RawBytes) (int, error)

Functions

func ParseScnPkt

func ParseScnPkt(s *spkt.ScnPkt, b common.RawBytes) (err error)

ParseScnPkt populates the SCION fields in s with information from b

func ValidateExtensions

func ValidateExtensions(extns []common.Extension) ([]common.Extension, []common.Extension, error)

ValidateExtensions checks that the sequence of extension in argument extns conforms to the SCION protocol specification.

The function returns the sequence of HBH exntensions and the sequence of E2E extensions. If an error occurred, both slices are nil, and error is non-nil.

func WriteScnPkt

func WriteScnPkt(s *spkt.ScnPkt, b common.RawBytes) (int, error)