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use IP_PMTUDISC_PROBE instead of IP_PMTUDISC_DO on Linux (#4729)

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This commit is contained in:
Marten Seemann
2024-11-26 10:20:05 +08:00
committed by GitHub
parent 7b769f7a31
commit ca31dd355c
1 changed files with 2 additions and 2 deletions
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4
sys_conn_df_linux.go
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@@ -16,8 +16,8 @@ func setDF(rawConn syscall.RawConn) (bool, error) {
// and the datagram will not be fragmented
var errDFIPv4, errDFIPv6 error
if err := rawConn.Control(func(fd uintptr) {
errDFIPv4 = unix.SetsockoptInt(int(fd), unix.IPPROTO_IP, unix.IP_MTU_DISCOVER, unix.IP_PMTUDISC_DO)
errDFIPv6 = unix.SetsockoptInt(int(fd), unix.IPPROTO_IPV6, unix.IPV6_MTU_DISCOVER, unix.IPV6_PMTUDISC_DO)
errDFIPv4 = unix.SetsockoptInt(int(fd), unix.IPPROTO_IP, unix.IP_MTU_DISCOVER, unix.IP_PMTUDISC_PROBE)
errDFIPv6 = unix.SetsockoptInt(int(fd), unix.IPPROTO_IPV6, unix.IPV6_MTU_DISCOVER, unix.IPV6_PMTUDISC_PROBE)
}); err != nil {
return false, err
}