Refine WireGuard client routing and authentication UI

client/tunnel-go/route_darwin.go

@@ -0,0 +1,21 @@
+//go:build darwin
+
+package main
+
+import (
+	"context"
+	"errors"
+	"net/netip"
+	"os/exec"
+	"time"
+)
+
+func physicalExitFor(endpoint netip.Addr) (physicalRoute, error) {
+	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
+	defer cancel()
+	output, err := exec.CommandContext(ctx, "/sbin/route", "-n", "get", endpoint.String()).Output()
+	if err != nil {
+		return physicalRoute{}, errors.New("无法读取 VPN 网关的当前物理出口")
+	}
+	return parsePhysicalRoute(string(output))
+}