ip

Documentation

Index

• Variables
• func AddDefaultRoute(gw net.IP, dev netlink.Link) error
• func AddHostRoute(ipn *net.IPNet, gw net.IP, dev netlink.Link) error
• func AddRoute(ipn *net.IPNet, gw net.IP, dev netlink.Link) error
• func DelLinkByName(ifName string) error
• func DelLinkByNameAddr(ifName string, family int) (*net.IPNet, error)
• func EnableIP4Forward() error
• func EnableIP6Forward() error
• func Network(ipn *net.IPNet) *net.IPNet
• func NextIP(ip net.IP) net.IP
• func PrevIP(ip net.IP) net.IP
• func RandomVethName() (string, error)
• func RenameLink(curName, newName string) error
• func SetHWAddrByIP(ifName string, ip4 net.IP, ip6 net.IP) error
• func SetupIPMasq(ipn *net.IPNet, chain string, comment string) error
• func SetupVeth(contVethName string, mtu int, hostNS ns.NetNS) (net.Interface, net.Interface, error)
• func TeardownIPMasq(ipn *net.IPNet, chain string, comment string) error

Variables

var (
	ErrLinkNotFound = errors.New("link not found")
)

Functions

func AddDefaultRoute

func AddDefaultRoute(gw net.IP, dev netlink.Link) error

AddDefaultRoute sets the default route on the given gateway.

func AddHostRoute

func AddHostRoute(ipn *net.IPNet, gw net.IP, dev netlink.Link) error

AddHostRoute adds a host-scoped route to a device.

func AddRoute

func AddRoute(ipn *net.IPNet, gw net.IP, dev netlink.Link) error

AddRoute adds a universally-scoped route to a device.

func DelLinkByName

func DelLinkByName(ifName string) error

DelLinkByName removes an interface link.

func DelLinkByNameAddr

func DelLinkByNameAddr(ifName string, family int) (*net.IPNet, error)

DelLinkByNameAddr remove an interface returns its IP address of the specified family

func EnableIP4Forward

func EnableIP4Forward() error

func EnableIP6Forward

func EnableIP6Forward() error

func Network

func Network(ipn *net.IPNet) *net.IPNet

Network masks off the host portion of the IP

func NextIP

func NextIP(ip net.IP) net.IP

NextIP returns IP incremented by 1

func PrevIP

func PrevIP(ip net.IP) net.IP

PrevIP returns IP decremented by 1

func RandomVethName

func RandomVethName() (string, error)

RandomVethName returns string "veth" with random prefix (hashed from entropy)

func RenameLink

func RenameLink(curName, newName string) error

func SetHWAddrByIP

func SetHWAddrByIP(ifName string, ip4 net.IP, ip6 net.IP) error

func SetupIPMasq

func SetupIPMasq(ipn *net.IPNet, chain string, comment string) error

SetupIPMasq installs iptables rules to masquerade traffic coming from ipn and going outside of it

func SetupVeth

func SetupVeth(contVethName string, mtu int, hostNS ns.NetNS) (net.Interface, net.Interface, error)

SetupVeth sets up a pair of virtual ethernet devices. Call SetupVeth from inside the container netns. It will create both veth devices and move the host-side veth into the provided hostNS namespace. On success, SetupVeth returns (hostVeth, containerVeth, nil)

func TeardownIPMasq

func TeardownIPMasq(ipn *net.IPNet, chain string, comment string) error

TeardownIPMasq undoes the effects of SetupIPMasq