Andrey Smirnov f9c46fb18d
fix: unmarshal HardwareAddr without stdlib help
Stdlib `net.ParseMAC` does lots of validations, but some hardware addrs
we can see (on logical interfaces) are not valid, so parse MACs in a
simple way.

Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>
2022-05-26 23:30:31 +04:00

41 lines
969 B
Go

// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package nethelpers
import (
"bytes"
"encoding/hex"
"net"
)
// HardwareAddr wraps net.HardwareAddr for YAML marshaling.
type HardwareAddr net.HardwareAddr
// MarshalText implements text.Marshaler interface.
func (addr HardwareAddr) MarshalText() ([]byte, error) {
return []byte(net.HardwareAddr(addr).String()), nil
}
// UnmarshalText implements text.Unmarshaler interface.
func (addr *HardwareAddr) UnmarshalText(b []byte) error {
rawHex := bytes.ReplaceAll(b, []byte(":"), []byte(""))
dstLen := hex.DecodedLen(len(rawHex))
dst := make([]byte, dstLen)
n, err := hex.Decode(dst, rawHex)
if err != nil {
return err
}
*addr = HardwareAddr(dst[:n])
return nil
}
func (addr HardwareAddr) String() string {
return net.HardwareAddr(addr).String()
}