diff options
Diffstat (limited to 'pkg/tcpip/stack/nic.go')
| -rw-r--r-- | pkg/tcpip/stack/nic.go | 33 |
1 files changed, 24 insertions, 9 deletions
diff --git a/pkg/tcpip/stack/nic.go b/pkg/tcpip/stack/nic.go index 00cfba35a..f66db16a7 100644 --- a/pkg/tcpip/stack/nic.go +++ b/pkg/tcpip/stack/nic.go @@ -55,8 +55,9 @@ type nic struct { // The network endpoints themselves may be modified by calling the interface's // methods, but the map reference and entries must be constant. - networkEndpoints map[tcpip.NetworkProtocolNumber]NetworkEndpoint - linkAddrResolvers map[tcpip.NetworkProtocolNumber]*linkResolver + networkEndpoints map[tcpip.NetworkProtocolNumber]NetworkEndpoint + linkAddrResolvers map[tcpip.NetworkProtocolNumber]*linkResolver + duplicateAddressDetectors map[tcpip.NetworkProtocolNumber]DuplicateAddressDetector // enabled is set to 1 when the NIC is enabled and 0 when it is disabled. // @@ -145,13 +146,14 @@ func newNIC(stack *Stack, id tcpip.NICID, name string, ep LinkEndpoint, ctx NICC nic := &nic{ LinkEndpoint: ep, - stack: stack, - id: id, - name: name, - context: ctx, - stats: makeNICStats(), - networkEndpoints: make(map[tcpip.NetworkProtocolNumber]NetworkEndpoint), - linkAddrResolvers: make(map[tcpip.NetworkProtocolNumber]*linkResolver), + stack: stack, + id: id, + name: name, + context: ctx, + stats: makeNICStats(), + networkEndpoints: make(map[tcpip.NetworkProtocolNumber]NetworkEndpoint), + linkAddrResolvers: make(map[tcpip.NetworkProtocolNumber]*linkResolver), + duplicateAddressDetectors: make(map[tcpip.NetworkProtocolNumber]DuplicateAddressDetector), } nic.linkResQueue.init(nic) nic.mu.packetEPs = make(map[tcpip.NetworkProtocolNumber]*packetEndpointList) @@ -176,6 +178,10 @@ func newNIC(stack *Stack, id tcpip.NICID, name string, ep LinkEndpoint, ctx NICC nic.linkAddrResolvers[r.LinkAddressProtocol()] = l } } + + if d, ok := netEP.(DuplicateAddressDetector); ok { + nic.duplicateAddressDetectors[d.DuplicateAddressProtocol()] = d + } } nic.LinkEndpoint.Attach(nic) @@ -991,3 +997,12 @@ func (n *nic) CheckLocalAddress(protocol tcpip.NetworkProtocolNumber, addr tcpip return false } + +func (n *nic) checkDuplicateAddress(protocol tcpip.NetworkProtocolNumber, addr tcpip.Address, h DADCompletionHandler) (DADCheckAddressDisposition, tcpip.Error) { + d, ok := n.duplicateAddressDetectors[protocol] + if !ok { + return 0, &tcpip.ErrNotSupported{} + } + + return d.CheckDuplicateAddress(addr, h), nil +} |