Method RemoveInterfaceAddr

pkg/sentry/socket/netstack/stack.go:685–708

RemoveInterfaceAddr implements inet.Stack.RemoveInterfaceAddr.

(idx int32, addr inet.InterfaceAddr)

// RemoveInterfaceAddr implements inet.Stack.RemoveInterfaceAddr.
func (s *Stack) RemoveInterfaceAddr(idx int32, addr inet.InterfaceAddr) error {
	protocolAddress, err := convertAddr(addr)
	if err != nil {
		return err
	}

	// Remove addresses matching the address and prefix.
	nicID := tcpip.NICID(idx)
	if err := s.Stack.RemoveAddress(nicID, protocolAddress.AddressWithPrefix.Address); err != nil {
		return syserr.TranslateNetstackError(err).ToError()
	}

	// Remove the corresponding local network route if it exists.
	localRoute := tcpip.Route{
		Destination: protocolAddress.AddressWithPrefix.Subnet(),
		Gateway:     tcpip.Address{}, // No gateway for local network.
		NIC:         nicID,
	}
	s.Stack.RemoveRoutes(func(rt tcpip.Route) bool {
		return rt.Equal(localRoute)
	})

	return nil
}

// TCPReceiveBufferSize implements inet.Stack.TCPReceiveBufferSize.
func (s *Stack) TCPReceiveBufferSize() (inet.TCPBufferSize, error) {