diff options
Diffstat (limited to 'pkg/tcpip/stack/nic.go')
| -rw-r--r-- | pkg/tcpip/stack/nic.go | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/pkg/tcpip/stack/nic.go b/pkg/tcpip/stack/nic.go index 6f2a0e487..a90d027f2 100644 --- a/pkg/tcpip/stack/nic.go +++ b/pkg/tcpip/stack/nic.go @@ -441,6 +441,13 @@ func (n *NIC) setSpoofing(enable bool) { n.mu.Unlock() } +// Spoofing implements NetworkInterface. +func (n *NIC) Spoofing() bool { + n.mu.RLock() + defer n.mu.RUnlock() + return n.mu.spoofing +} + // primaryAddress returns an address that can be used to communicate with // remoteAddr. func (n *NIC) primaryEndpoint(protocol tcpip.NetworkProtocolNumber, remoteAddr tcpip.Address) AssignableAddressEndpoint { @@ -994,3 +1001,17 @@ func (n *NIC) HandleNeighborConfirmation(protocol tcpip.NetworkProtocolNumber, a return &tcpip.ErrNotSupported{} } + +// CheckLocalAddress implements NetworkInterface. +func (n *NIC) CheckLocalAddress(protocol tcpip.NetworkProtocolNumber, addr tcpip.Address) bool { + if n.Spoofing() { + return true + } + + if addressEndpoint := n.getAddressOrCreateTempInner(protocol, addr, false /* createTemp */, NeverPrimaryEndpoint); addressEndpoint != nil { + addressEndpoint.DecRef() + return true + } + + return false +} |