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fix documentation for IP fragmentation socket options on Windows (#4724)

Browse Source 
https://datatracker.ietf.org/doc/draft-seemann-tsvwg-udp-fragmentation/
contains details for IP fragmentation on different platforms.
This commit is contained in:
Marten Seemann
2024-11-15 21:28:19 +01:00
committed by GitHub
parent 86ebed7cf7
commit 21219d1122
1 changed files with 5 additions and 7 deletions
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12
sys_conn_df_windows.go
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@@ -12,21 +12,19 @@ import (
)
const (
// IP_DONTFRAGMENT controls the Don't Fragment (DF) bit.
//
// It's the same code point for both IPv4 and IPv6 on Windows.
// https://microsoft.github.io/windows-docs-rs/doc/windows/Win32/Networking/WinSock/constant.IP_DONTFRAG.html
// https://microsoft.github.io/windows-docs-rs/doc/windows/Win32/Networking/WinSock/constant.IPV6_DONTFRAG.html
//
// https://microsoft.github.io/windows-docs-rs/doc/windows/Win32/Networking/WinSock/constant.IP_DONTFRAGMENT.html
//nolint:stylecheck
IP_DONTFRAGMENT = 14
// https://microsoft.github.io/windows-docs-rs/doc/windows/Win32/Networking/WinSock/constant.IPV6_DONTFRAG.html
//nolint:stylecheck
IPV6_DONTFRAG = 14
)
func setDF(rawConn syscall.RawConn) (bool, error) {
var errDFIPv4, errDFIPv6 error
if err := rawConn.Control(func(fd uintptr) {
errDFIPv4 = windows.SetsockoptInt(windows.Handle(fd), windows.IPPROTO_IP, IP_DONTFRAGMENT, 1)
errDFIPv6 = windows.SetsockoptInt(windows.Handle(fd), windows.IPPROTO_IPV6, IP_DONTFRAGMENT, 1)
errDFIPv6 = windows.SetsockoptInt(windows.Handle(fd), windows.IPPROTO_IPV6, IPV6_DONTFRAG, 1)
}); err != nil {
return false, err
}