feat(vpn): path MTU discovery to find the best MTU (#2586)

2026-05-09 20:29:23 +02:00 · 2026-01-21 18:02:23 +01:00
parent fba60af772
commit de38d759a4
20 changed files with 982 additions and 0 deletions
@@ -0,0 +1,12 @@
+//go:build linux
+
+package pmtud
+
+import (
+	"syscall"
+)
+
+func setDontFragment(fd uintptr) (err error) {
+	return syscall.SetsockoptInt(int(fd), syscall.IPPROTO_IP,
+		syscall.IP_MTU_DISCOVER, syscall.IP_PMTUDISC_PROBE)
+}