netlinkwrapper

Documentation

Index

• func IsNetworkUnreachableError(err error) bool
• func IsNotExistsError(err error) bool
• func IsRouteExistsError(err error) bool
• type NetLink
  • func NewNetLink() NetLink

Functions

func IsNetworkUnreachableError

func IsNetworkUnreachableError(err error) bool

IsNetworkUnreachableError returns true if the error type is syscall.ENETUNREACH This helps us determine if we should ignore this error as the route the call depends on is not plumbed ready yet

func IsNotExistsError

func IsNotExistsError(err error) bool

IsNotExistsError returns true if the error type is syscall.ESRCH This helps us determine if we should ignore this error as the route that we want to cleanup has been deleted already routing table

func IsRouteExistsError

func IsRouteExistsError(err error) bool

IsRouteExistsError returns true if the error type is syscall.EEXIST This helps us determine if we should ignore this error as the route we want to add has been added already in routing table

Types

type NetLink

type NetLink interface {
	// LinkByName gets a link object given the device name
	LinkByName(name string) (netlink.Link, error)
	// LinkSetNsFd is equivalent to `ip link set $link netns $ns`
	LinkSetNsFd(link netlink.Link, fd int) error
	// ParseAddr parses an address string
	ParseAddr(s string) (*netlink.Addr, error)
	// AddrAdd is equivalent to `ip addr add $addr dev $link`
	AddrAdd(link netlink.Link, addr *netlink.Addr) error
	// AddrDel is equivalent to `ip addr del $addr dev $link`
	AddrDel(link netlink.Link, addr *netlink.Addr) error
	// AddrList is equivalent to `ip addr show `
	AddrList(link netlink.Link, family int) ([]netlink.Addr, error)
	// LinkAdd is equivalent to `ip link add`
	LinkAdd(link netlink.Link) error
	// LinkSetUp is equivalent to `ip link set $link up`
	LinkSetUp(link netlink.Link) error
	// LinkList is equivalent to: `ip link show`
	LinkList() ([]netlink.Link, error)
	// LinkSetDown is equivalent to: `ip link set $link down`
	LinkSetDown(link netlink.Link) error
	// RouteList gets a list of routes in the system.
	RouteList(link netlink.Link, family int) ([]netlink.Route, error)
	// RouteAdd will add a route to the route table
	RouteAdd(route *netlink.Route) error
	// RouteReplace will replace the route in the route table
	RouteReplace(route *netlink.Route) error
	// RouteDel is equivalent to `ip route del`
	RouteDel(route *netlink.Route) error
	// NeighAdd equivalent to: `ip neigh add ....`
	NeighAdd(neigh *netlink.Neigh) error
	// LinkDel equivalent to: `ip link del $link`
	LinkDel(link netlink.Link) error
	// NewRule creates a new empty rule
	NewRule() *netlink.Rule
	// RuleAdd is equivalent to: ip rule add
	RuleAdd(rule *netlink.Rule) error
	// RuleDel is equivalent to: ip rule del
	RuleDel(rule *netlink.Rule) error
	// RuleList is equivalent to: ip rule list
	RuleList(family int) ([]netlink.Rule, error)
	// LinkSetMTU is equivalent to `ip link set dev $link mtu $mtu`
	LinkSetMTU(link netlink.Link, mtu int) error
}

NetLink wraps methods used from the vishvananda/netlink package

func NewNetLink

func NewNetLink() NetLink

NewNetLink creates a new NetLink object