Files
netbird/client/iface/udpmux/mux_generic.go
Viktor Liu 55126f990c [client] Use native windows sock opts to avoid routing loops (#4314)
- Move `util/grpc` and `util/net` to `client` so `internal` packages can be accessed
 - Add methods to return the next best interface after the NetBird interface.
- Use `IP_UNICAST_IF` sock opt to force the outgoing interface for the NetBird `net.Dialer` and `net.ListenerConfig` to avoid routing loops. The interface is picked by the new route lookup method.
- Some refactoring to avoid import cycles
- Old behavior is available through `NB_USE_LEGACY_ROUTING=true` env var
2025-09-20 09:31:04 +02:00

23 lines
550 B
Go

//go:build !ios
package udpmux
import (
nbnet "github.com/netbirdio/netbird/client/net"
)
func (m *SingleSocketUDPMux) notifyAddressRemoval(addr string) {
// Kernel mode: direct nbnet.PacketConn (SharedSocket wrapped with nbnet)
if conn, ok := m.params.UDPConn.(*nbnet.PacketConn); ok {
conn.RemoveAddress(addr)
return
}
// Userspace mode: UDPConn wrapper around nbnet.PacketConn
if wrapped, ok := m.params.UDPConn.(*UDPConn); ok {
if conn, ok := wrapped.GetPacketConn().(*nbnet.PacketConn); ok {
conn.RemoveAddress(addr)
}
}
}