ebtables

package
v1.18.0-rc.1 Latest Latest
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Published: Mar 17, 2020 License: Apache-2.0 Imports: 4 Imported by: 0

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Functions

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Types

type Chain

type Chain string
const (
	ChainPostrouting Chain = "POSTROUTING"
	ChainPrerouting  Chain = "PREROUTING"
	ChainOutput      Chain = "OUTPUT"
	ChainInput       Chain = "INPUT"
)

type Interface

type Interface interface {
	// GetVersion returns the "X.Y.Z" semver string for ebtables.
	GetVersion() (string, error)
	// EnsureRule checks if the specified rule is present and, if not, creates it.  If the rule existed, return true.
	// WARNING: ebtables does not provide check operation like iptables do. Hence we have to do a string match of args.
	// Input args must follow the format and sequence of ebtables list output. Otherwise, EnsureRule will always create
	// new rules and causing duplicates.
	EnsureRule(position RulePosition, table Table, chain Chain, args ...string) (bool, error)
	// EnsureChain checks if the specified chain is present and, if not, creates it.  If the rule existed, return true.
	EnsureChain(table Table, chain Chain) (bool, error)
	// DeleteChain deletes the specified chain.  If the chain did not exist, return error.
	DeleteChain(table Table, chain Chain) error
	// FlushChain flush the specified chain.  If the chain did not exist, return error.
	FlushChain(table Table, chain Chain) error
}

An injectable interface for running ebtables commands. Implementations must be goroutine-safe.

func New

func New(exec utilexec.Interface) Interface

New returns a new Interface which will exec ebtables.

type RulePosition

type RulePosition string
const (
	Prepend RulePosition = "-I"
	Append  RulePosition = "-A"
)

type Table

type Table string
const (
	TableNAT    Table = "nat"
	TableFilter Table = "filter"
)

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