diff options
| author | Ghanan Gowripalan <ghanan@google.com> | 2020-11-16 14:32:57 -0800 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-11-16 14:36:10 -0800 |
| commit | cc5cfce4c6c9df1a44433681b87d411a67b09b28 (patch) | |
| tree | a4e14888c2873746e31cbed81b87fc18da9a6e5c /runsc/boot/network.go | |
| parent | 373fd8310032ef19e05f8cc77a1eeb6fcb438da8 (diff) | |
Remove ARP address workaround
- Make AddressableEndpoint optional for NetworkEndpoint.
Not all NetworkEndpoints need to support addressing (e.g. ARP), so
AddressableEndpoint should only be implemented for protocols that
support addressing such as IPv4 and IPv6.
With this change, tcpip.ErrNotSupported will be returned by the stack
when attempting to modify addresses on a network endpoint that does
not support addressing.
Now that packets are fully handled at the network layer, and (with this
change) addresses are optional for network endpoints, we no longer need
the workaround for ARP where a fake ARP address was added to each NIC
that performs ARP so that packets would be delivered to the ARP layer.
PiperOrigin-RevId: 342722547
Diffstat (limited to 'runsc/boot/network.go')
| -rw-r--r-- | runsc/boot/network.go | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/runsc/boot/network.go b/runsc/boot/network.go index 988573640..f58b09942 100644 --- a/runsc/boot/network.go +++ b/runsc/boot/network.go @@ -28,7 +28,6 @@ import ( "gvisor.dev/gvisor/pkg/tcpip/link/packetsocket" "gvisor.dev/gvisor/pkg/tcpip/link/qdisc/fifo" "gvisor.dev/gvisor/pkg/tcpip/link/sniffer" - "gvisor.dev/gvisor/pkg/tcpip/network/arp" "gvisor.dev/gvisor/pkg/tcpip/network/ipv4" "gvisor.dev/gvisor/pkg/tcpip/network/ipv6" "gvisor.dev/gvisor/pkg/tcpip/stack" @@ -271,11 +270,6 @@ func (n *Network) createNICWithAddrs(id tcpip.NICID, name string, ep stack.LinkE return fmt.Errorf("CreateNICWithOptions(%d, _, %+v) failed: %v", id, opts, err) } - // Always start with an arp address for the NIC. - if err := n.Stack.AddAddress(id, arp.ProtocolNumber, arp.ProtocolAddress); err != nil { - return fmt.Errorf("AddAddress(%v, %v, %v) failed: %v", id, arp.ProtocolNumber, arp.ProtocolAddress, err) - } - for _, addr := range addrs { proto, tcpipAddr := ipToAddressAndProto(addr) if err := n.Stack.AddAddress(id, proto, tcpipAddr); err != nil { |