linuxfw

Documentation

Overview

Package linuxfw returns the kind of firewall being used by the kernel.

Index

• Variables
• func DebugIptables(logf logger.Logf) error
• func DebugNetfilter(logf logger.Logf) error
• func DetectIptables() (int, error)
• func DetectNetfilter() (int, error)

Variables

var ErrUnsupported = errors.New("unsupported")

ErrUnsupported is the error returned from all functions on non-Linux platforms.

Functions

func DebugIptables

func DebugIptables(logf logger.Logf) error

DebugNetfilter prints debug information about iptables rules to the provided log function.

func DebugNetfilter

func DebugNetfilter(logf logger.Logf) error

DebugNetfilter prints debug information about netfilter rules to the provided log function.

func DetectIptables

func DetectIptables() (int, error)

DetectIptables returns the number of iptables rules that are present in the system, ignoring the default "ACCEPT" rule present in the standard iptables chains.

It only returns an error when the kernel returns an error (i.e. when a syscall fails); when there are no iptables rules, it is valid for this function to return 0, nil.

func DetectNetfilter

func DetectNetfilter() (int, error)

DetectNetfilter returns the number of nftables rules present in the system.