checksum

package
v1.54.0 Latest Latest
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 Go to latest Published: Nov 15, 2023 License: BSD-3-Clause Imports: 6 Imported by: 1

Documentation

Overview

Package checksum provides functions for updating checksums in parsed packets.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func UpdateDstAddr 

func UpdateDstAddr(q *packet.Parsed, dst netip.Addr)

UpdateDstAddr updates the destination address in the packet buffer (e.g. during DNAT). It also updates the checksum. Currently (2022-12-10) only TCP/UDP/ICMP is supported. It panics if provided with an address in a different family to the parsed packet.

func UpdateSrcAddr 

func UpdateSrcAddr(q *packet.Parsed, src netip.Addr)

UpdateSrcAddr updates the source address in the packet buffer (e.g. during SNAT). It also updates the checksum. Currently (2023-09-22) only TCP/UDP/ICMP is supported. It panics if provided with an address in a different family to the parsed packet.

Types

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Source Files

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