fs2.protocols.ip.IpHeader.scala Maven / Gradle / Ivy
/*
* Copyright (c) 2013 Functional Streams for Scala
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package fs2.protocols
package ip
import fs2.interop.scodec.StreamDecoder
import fs2.protocols.ethernet.{EthernetFrameHeader, EtherType}
import com.comcast.ip4s.IpAddress
sealed trait IpHeader {
def protocol: Int
def sourceIp: IpAddress
def destinationIp: IpAddress
}
object IpHeader {
def sdecoder(ethernetHeader: EthernetFrameHeader): StreamDecoder[IpHeader] =
ethernetHeader.ethertype match {
case Some(EtherType.IPv4) => StreamDecoder.once(Ipv4Header.codec)
case Some(EtherType.IPv6) => StreamDecoder.once(Ipv6Header.codec)
case _ => StreamDecoder.empty
}
}
private[ip] trait UnsealedIpHeader extends IpHeader