1 files changed, 47 insertions, 0 deletions
diff --git a/dhcpv6/option_clientlinklayeraddress.go b/dhcpv6/option_clientlinklayeraddress.go
new file mode 100644
index 0000000..91d8a23
--- /dev/null
+++ b/dhcpv6/option_clientlinklayeraddress.go
@@ -0,0 +1,47 @@
+package dhcpv6
+
+import (
+	"fmt"
+	"net"
+
+	"github.com/insomniacslk/dhcp/iana"
+	"github.com/u-root/u-root/pkg/uio"
+)
+
+// OptClientLinkLayerAddress implements OptionClientLinkLayerAddr option.
+// https://tools.ietf.org/html/rfc6939
+func OptClientLinkLayerAddress(ht iana.HWType, lla net.HardwareAddr) *optClientLinkLayerAddress {
+	return &optClientLinkLayerAddress{LinkLayerType: ht, LinkLayerAddress: lla}
+}
+
+type optClientLinkLayerAddress struct {
+	LinkLayerType    iana.HWType
+	LinkLayerAddress net.HardwareAddr
+}
+
+// Code returns the option code.
+func (op *optClientLinkLayerAddress) Code() OptionCode {
+	return OptionClientLinkLayerAddr
+}
+
+// ToBytes serializes the option and returns it as a sequence of bytes
+func (op *optClientLinkLayerAddress) ToBytes() []byte {
+	buf := uio.NewBigEndianBuffer(nil)
+	buf.Write16(uint16(op.LinkLayerType))
+	buf.WriteBytes(op.LinkLayerAddress)
+	return buf.Data()
+}
+
+func (op *optClientLinkLayerAddress) String() string {
+	return fmt.Sprintf("ClientLinkLayerAddress: Type=%s LinkLayerAddress=%s", op.LinkLayerType, op.LinkLayerAddress)
+}
+
+// parseOptClientLinkLayerAddress deserializes from bytes
+// to build an optClientLinkLayerAddress structure.
+func parseOptClientLinkLayerAddress(data []byte) (*optClientLinkLayerAddress, error) {
+	var opt optClientLinkLayerAddress
+	buf := uio.NewBigEndianBuffer(data)
+	opt.LinkLayerType = iana.HWType(buf.Read16())
+	opt.LinkLayerAddress = buf.ReadAll()
+	return &opt, buf.FinError()
+}