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hotfix(pmtud/icmp): set IPv6 dont fragment options just in case

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This commit is contained in:
Quentin McGaw
2026-02-19 16:32:33 +00:00
parent 8d86470905
commit 67b66bba9e
5 changed files with 29 additions and 9 deletions
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internal/pmtud/icmp/df_windows.go
+7 -4
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@@ -4,8 +4,11 @@ import (
"golang.org/x/sys/windows"
)
func setDontFragment(fd uintptr) (err error) {
// https://docs.microsoft.com/en-us/troubleshoot/windows/win32/header-library-requirement-socket-ipproto-ip
// #define IP_DONTFRAGMENT 14 /* don't fragment IP datagrams */
return windows.SetsockoptInt(windows.Handle(fd), windows.IPPROTO_IP, 14, 1)
func setDontFragment(fd uintptr, ipv4 bool) (err error) {
if ipv4 {
// https://docs.microsoft.com/en-us/troubleshoot/windows/win32/header-library-requirement-socket-ipproto-ip
// #define IP_DONTFRAGMENT 14 /* don't fragment IP datagrams */
return windows.SetsockoptInt(windows.Handle(fd), windows.IPPROTO_IP, 14, 1)
}
return windows.SetsockoptInt(windows.Handle(fd), windows.IPPROTO_IPV6, 14, 1)
}