engine, io: more caching + optimizations

2026-05-12 13:31:19 +00:00
parent 4d70520e43
commit dc16b979e7
2 changed files with 36 additions and 19 deletions
@@ -343,17 +343,13 @@ func lookupNeighborMACNetlink(target net.IP) (net.HardwareAddr, bool) {
 func readIPv6NeighCommand() map[string]net.HardwareAddr {
 	commands := [][]string{
 		{"ip", "-6", "neigh", "show"},
-		{"/sbin/ip", "-6", "neigh", "show"},
-		{"/usr/sbin/ip", "-6", "neigh", "show"},
-		{"busybox", "ip", "-6", "neigh", "show"},
-		{"/bin/busybox", "ip", "-6", "neigh", "show"},
 	}
+	m := make(map[string]net.HardwareAddr)
 	for _, cmd := range commands {
 		out, err := exec.Command(cmd[0], cmd[1:]...).Output()
 		if err != nil || len(out) == 0 {
 			continue
 		}
-		m := make(map[string]net.HardwareAddr)
 		for _, line := range strings.Split(string(out), "\n") {
 			ip, mac, ok := parseNeighborLine(line)
 			if !ok {
@@ -365,7 +361,7 @@ func readIPv6NeighCommand() map[string]net.HardwareAddr {
 			return m
 		}
 	}
-	return map[string]net.HardwareAddr{}
+	return m
 }

 func parseNeighborLine(line string) (string, net.HardwareAddr, bool) {