diff options
Diffstat (limited to 'pkg/tcpip/header')
| -rw-r--r-- | pkg/tcpip/header/eth.go | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/pkg/tcpip/header/eth.go b/pkg/tcpip/header/eth.go index 4c3d3311f..1bb3bb5e6 100644 --- a/pkg/tcpip/header/eth.go +++ b/pkg/tcpip/header/eth.go @@ -50,6 +50,24 @@ const ( EthernetAddressSize = 6 ) +const ( + // EthernetProtocolAll is a catch-all for all protocols carried inside + // an ethernet frame. It is mainly used to create packet sockets that + // capture all traffic. + EthernetProtocolAll tcpip.NetworkProtocolNumber = 0x0003 + + // EthernetProtocolPUP is the PARC Universial Packet protocol ethertype. + EthernetProtocolPUP tcpip.NetworkProtocolNumber = 0x0200 +) + +// Ethertypes holds the protocol numbers describing the payload of an ethernet +// frame. These types aren't necessarily supported by netstack, but can be used +// to catch all traffic of a type via packet endpoints. +var Ethertypes = []tcpip.NetworkProtocolNumber{ + EthernetProtocolAll, + EthernetProtocolPUP, +} + // SourceAddress returns the "MAC source" field of the ethernet frame header. func (b Ethernet) SourceAddress() tcpip.LinkAddress { return tcpip.LinkAddress(b[srcMAC:][:EthernetAddressSize]) |