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package dhcpv4
import (
"fmt"
"net"
"github.com/u-root/u-root/pkg/uio"
)
// OptBroadcastAddress implements the broadcast address option described in RFC
// 2132, Section 5.3.
type OptBroadcastAddress struct {
BroadcastAddress net.IP
}
// ParseOptBroadcastAddress returns a new OptBroadcastAddress from a byte
// stream, or error if any.
func ParseOptBroadcastAddress(data []byte) (*OptBroadcastAddress, error) {
buf := uio.NewBigEndianBuffer(data)
return &OptBroadcastAddress{BroadcastAddress: net.IP(buf.CopyN(net.IPv4len))}, buf.FinError()
}
// Code returns the option code.
func (o *OptBroadcastAddress) Code() OptionCode {
return OptionBroadcastAddress
}
// ToBytes returns a serialized stream of bytes for this option.
func (o *OptBroadcastAddress) ToBytes() []byte {
return []byte(o.BroadcastAddress.To4())
}
// String returns a human-readable string.
func (o *OptBroadcastAddress) String() string {
return fmt.Sprintf("Broadcast Address -> %v", o.BroadcastAddress.String())
}
// OptRequestedIPAddress implements the requested IP address option described
// by RFC 2132, Section 9.1.
type OptRequestedIPAddress struct {
RequestedAddr net.IP
}
// ParseOptRequestedIPAddress returns a new OptRequestedIPAddress from a byte
// stream, or error if any.
func ParseOptRequestedIPAddress(data []byte) (*OptRequestedIPAddress, error) {
buf := uio.NewBigEndianBuffer(data)
return &OptRequestedIPAddress{RequestedAddr: net.IP(buf.CopyN(net.IPv4len))}, buf.FinError()
}
// Code returns the option code.
func (o *OptRequestedIPAddress) Code() OptionCode {
return OptionRequestedIPAddress
}
// ToBytes returns a serialized stream of bytes for this option.
func (o *OptRequestedIPAddress) ToBytes() []byte {
return o.RequestedAddr.To4()
}
// String returns a human-readable string.
func (o *OptRequestedIPAddress) String() string {
return fmt.Sprintf("Requested IP Address -> %v", o.RequestedAddr.String())
}
// OptServerIdentifier implements the server identifier option described by RFC
// 2132, Section 9.7.
type OptServerIdentifier struct {
ServerID net.IP
}
// ParseOptServerIdentifier returns a new OptServerIdentifier from a byte
// stream, or error if any.
func ParseOptServerIdentifier(data []byte) (*OptServerIdentifier, error) {
buf := uio.NewBigEndianBuffer(data)
return &OptServerIdentifier{ServerID: net.IP(buf.CopyN(net.IPv4len))}, buf.FinError()
}
// Code returns the option code.
func (o *OptServerIdentifier) Code() OptionCode {
return OptionServerIdentifier
}
// ToBytes returns a serialized stream of bytes for this option.
func (o *OptServerIdentifier) ToBytes() []byte {
return o.ServerID.To4()
}
// String returns a human-readable string.
func (o *OptServerIdentifier) String() string {
return fmt.Sprintf("Server Identifier -> %v", o.ServerID.String())
}
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