netutils

Documentation

Index

• func AddIntToIP(ip net.IP, ordinal uint64) net.IP
• func DefaultGateway(cidr string) (string, error)
• func DeleteInterfaceIfExists(ctx context.Context, nsfd netns.NsHandle, ifname string) error
• func ForwardConnection(ctx context.Context, srcSocket net.Conn, ns, ip, port string) error
• func GenerateIfaceName(nlh netlink.Handler, prefix string, len int) (string, error)
• func GenerateRandomName(prefix string, size int) (string, error)
• func ParseAddr(s string) (*netlink.Addr, error)
• func ToCIDR(ip net.IP, mask net.IPMask) string
• type Conn

Functions

func AddIntToIP

func AddIntToIP(ip net.IP, ordinal uint64) net.IP

Adds the ordinal IP to the current array 192.168.0.0 + 53 => 192.168.0.53

func DefaultGateway

func DefaultGateway(cidr string) (string, error)

func DeleteInterfaceIfExists

func DeleteInterfaceIfExists(ctx context.Context, nsfd netns.NsHandle, ifname string) error

func ForwardConnection

func ForwardConnection(ctx context.Context, srcSocket net.Conn, ns, ip, port string) error

func GenerateIfaceName

func GenerateIfaceName(nlh netlink.Handler, prefix string, len int) (string, error)

GenerateIfaceName returns an interface name using the passed in prefix and the length of random bytes. The api ensures that the there are is no interface which exists with that name.

func GenerateRandomName

func GenerateRandomName(prefix string, size int) (string, error)

GenerateRandomName returns a new name joined with a prefix. This size specified is used to truncate the randomly generated value

func ParseAddr

func ParseAddr(s string) (*netlink.Addr, error)

ParseAddr parses the string representation of an address in the form $ip/$netmask $label. The label portion is optional From "github.com/vishvananda/netlink"

func ToCIDR

func ToCIDR(ip net.IP, mask net.IPMask) string

Types

type Conn

type Conn interface {
	Write([]byte) (int, error)
	Read([]byte) (int, error)
	Close() error
	CloseWrite() error
}