diff options
Diffstat (limited to 'pkg/tcpip/packet_buffer.go')
| -rw-r--r-- | pkg/tcpip/packet_buffer.go | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/pkg/tcpip/packet_buffer.go b/pkg/tcpip/packet_buffer.go index ab24372e7..7a036b93c 100644 --- a/pkg/tcpip/packet_buffer.go +++ b/pkg/tcpip/packet_buffer.go @@ -13,7 +13,9 @@ package tcpip -import "gvisor.dev/gvisor/pkg/tcpip/buffer" +import ( + "gvisor.dev/gvisor/pkg/tcpip/buffer" +) // A PacketBuffer contains all the data of a network packet. // @@ -65,3 +67,24 @@ func (pk PacketBuffer) Clone() PacketBuffer { pk.Data = pk.Data.Clone(nil) return pk } + +//// TransportProtocol returns the transport protocol of pk. +//// +//// Precondition: pk.NetworkHeader is set. +//func (pk PacketBuffer) TransportProtocolIPv4() uint16 { +// if pk.NetworkHeader == nil { +// panic("This should only be called when pk.NetworkHeader is set.") +// } +// return header.IPv4(pk.NetworkHeader).TransportProtocol() +//} + +// func (pk Packet) findNetHeader() header.IPv4 { +// // Inbound: +// // Data holds everything, but may have had some headers shaved off. +// // Figure out whether it's set or still somewhere in data and return +// // appropriately. + +// // Outbound: +// // NetworkHeader will be set if we've added one. Otherwise there's no +// // header. +// } |