diff options
| author | Kevin Krakauer <krakauer@google.com> | 2019-10-21 13:21:58 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2019-10-21 13:23:18 -0700 |
| commit | 12235d533ae5c8b4b03c6d7f24cae785a2d6ec22 (patch) | |
| tree | 5abb8c6990f18af17a3889de637befc88b302a8e /pkg/tcpip/link/fdbased/packet_dispatchers.go | |
| parent | 652f7b1d0fef6f522baaed091d4820a48014092c (diff) | |
AF_PACKET support for netstack (aka epsocket).
Like (AF_INET, SOCK_RAW) sockets, AF_PACKET sockets require CAP_NET_RAW. With
runsc, you'll need to pass `--net-raw=true` to enable them.
Binding isn't supported yet.
PiperOrigin-RevId: 275909366
Diffstat (limited to 'pkg/tcpip/link/fdbased/packet_dispatchers.go')
| -rw-r--r-- | pkg/tcpip/link/fdbased/packet_dispatchers.go | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/pkg/tcpip/link/fdbased/packet_dispatchers.go b/pkg/tcpip/link/fdbased/packet_dispatchers.go index 7ca217e5b..9fb760891 100644 --- a/pkg/tcpip/link/fdbased/packet_dispatchers.go +++ b/pkg/tcpip/link/fdbased/packet_dispatchers.go @@ -118,9 +118,10 @@ func (d *readVDispatcher) dispatch() (bool, *tcpip.Error) { var ( p tcpip.NetworkProtocolNumber remote, local tcpip.LinkAddress + eth header.Ethernet ) if d.e.hdrSize > 0 { - eth := header.Ethernet(d.views[0]) + eth = header.Ethernet(d.views[0][:header.EthernetMinimumSize]) p = eth.Type() remote = eth.SourceAddress() local = eth.DestinationAddress() @@ -141,7 +142,7 @@ func (d *readVDispatcher) dispatch() (bool, *tcpip.Error) { vv := buffer.NewVectorisedView(n, d.views[:used]) vv.TrimFront(d.e.hdrSize) - d.e.dispatcher.DeliverNetworkPacket(d.e, remote, local, p, vv) + d.e.dispatcher.DeliverNetworkPacket(d.e, remote, local, p, vv, buffer.View(eth)) // Prepare e.views for another packet: release used views. for i := 0; i < used; i++ { @@ -271,9 +272,10 @@ func (d *recvMMsgDispatcher) dispatch() (bool, *tcpip.Error) { var ( p tcpip.NetworkProtocolNumber remote, local tcpip.LinkAddress + eth header.Ethernet ) if d.e.hdrSize > 0 { - eth := header.Ethernet(d.views[k][0]) + eth = header.Ethernet(d.views[k][0]) p = eth.Type() remote = eth.SourceAddress() local = eth.DestinationAddress() @@ -293,7 +295,7 @@ func (d *recvMMsgDispatcher) dispatch() (bool, *tcpip.Error) { used := d.capViews(k, int(n), BufConfig) vv := buffer.NewVectorisedView(int(n), d.views[k][:used]) vv.TrimFront(d.e.hdrSize) - d.e.dispatcher.DeliverNetworkPacket(d.e, remote, local, p, vv) + d.e.dispatcher.DeliverNetworkPacket(d.e, remote, local, p, vv, buffer.View(eth)) // Prepare e.views for another packet: release used views. for i := 0; i < used; i++ { |