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[client] Add non-root ICMP support to userspace firewall forwarder (#4792)

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This commit is contained in:
Viktor Liu
2026-01-09 02:53:37 +08:00
committed by GitHub
parent 9c9d8e17d7
commit e8863fbb55
8 changed files with 291 additions and 101 deletions
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19
client/iface/bind/ice_bind.go
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@@ -27,8 +27,23 @@ type receiverCreator struct {
iceBind *ICEBind
}
func (rc receiverCreator) CreateIPv4ReceiverFn(pc *ipv4.PacketConn, conn *net.UDPConn, rxOffload bool, msgPool *sync.Pool) wgConn.ReceiveFunc {
return rc.iceBind.createIPv4ReceiverFn(pc, conn, rxOffload, msgPool)
func (rc receiverCreator) CreateReceiverFn(pc wgConn.BatchReader, conn *net.UDPConn, rxOffload bool, msgPool *sync.Pool) wgConn.ReceiveFunc {
if ipv4PC, ok := pc.(*ipv4.PacketConn); ok {
return rc.iceBind.createIPv4ReceiverFn(ipv4PC, conn, rxOffload, msgPool)
}
// IPv6 is currently not supported in the udpmux, this is a stub for compatibility with the
// wireguard-go ReceiverCreator interface which is called for both IPv4 and IPv6.
return func(bufs [][]byte, sizes []int, eps []wgConn.Endpoint) (n int, err error) {
buf := bufs[0]
size, ep, err := conn.ReadFromUDPAddrPort(buf)
if err != nil {
return 0, err
}
sizes[0] = size
stdEp := &wgConn.StdNetEndpoint{AddrPort: ep}
eps[0] = stdEp
return 1, nil
}
}
// ICEBind is a bind implementation with two main features: