mac

Documentation

Index

• Constants
• func CArrayString(m net.HardwareAddr) string
• func HasMacAddr(iface string) bool
• func HaveMACAddrs(ifaces []string) bool
• func LinkHasMacAddr(link netlink.Link) bool
• type MAC
  • func GenerateRandMAC() (MAC, error)
  • func ParseMAC(s string) (MAC, error)
  • func (m MAC) MarshalIndentJSON(prefix, indent string) ([]byte, error)
  • func (m MAC) MarshalJSON() ([]byte, error)
  • func (m MAC) String() string
  • func (m MAC) Uint64() (Uint64MAC, error)
  • func (m *MAC) UnmarshalJSON(data []byte) error
• type Uint64MAC
  • func (m Uint64MAC) String() string

Constants

const EthHdrLen = 14

Untagged ethernet (IEEE 802.3) frame header len

Functions

func CArrayString

func CArrayString(m net.HardwareAddr) string

CArrayString returns a string which can be used for assigning the given MAC addr to "union macaddr" in C.

func HasMacAddr

func HasMacAddr(iface string) bool

HasMacAddr returns true if the given network interface has L2 addr.

func HaveMACAddrs

func HaveMACAddrs(ifaces []string) bool

HaveMACAddrs returns true if all given network interfaces have L2 addr.

func LinkHasMacAddr

func LinkHasMacAddr(link netlink.Link) bool

LinkHasMacAddr returns true if the given network interface has L2 addr.

Types

type MAC

type MAC net.HardwareAddr

MAC address is an net.HardwareAddr encapsulation to force cilium to only use MAC-48.

func GenerateRandMAC

func GenerateRandMAC() (MAC, error)

GenerateRandMAC generates a random unicast and locally administered MAC address.

func ParseMAC

func ParseMAC(s string) (MAC, error)

ParseMAC parses s only as an IEEE 802 MAC-48.

func (MAC) MarshalIndentJSON

func (m MAC) MarshalIndentJSON(prefix, indent string) ([]byte, error)

func (MAC) MarshalJSON

func (m MAC) MarshalJSON() ([]byte, error)

func (MAC) String

func (m MAC) String() string

String returns the string representation of m.

func (MAC) Uint64

func (m MAC) Uint64() (Uint64MAC, error)

Uint64 returns the MAC in uint64 format. The MAC is represented as little-endian in the returned value. Example:

m := MAC([]{0x11, 0x12, 0x23, 0x34, 0x45, 0x56})
v, err := m.Uint64()
fmt.Printf("0x%X", v) // 0x564534231211

func (*MAC) UnmarshalJSON

func (m *MAC) UnmarshalJSON(data []byte) error

type Uint64MAC

type Uint64MAC uint64

Uint64MAC is the __u64 representation of a MAC address. It corresponds to the C mac_t type used in bpf/.

func (Uint64MAC) String

func (m Uint64MAC) String() string