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Sockopt: Fix Windows Multicast interface bind (#4568)

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https://github.com/XTLS/Xray-core/pull/4568#issuecomment-2763492336
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xqzr 2025-03-31 04:51:36 +08:00 committed by GitHub
parent 1685c61e44
commit 52a2c63682
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1 changed files with 8 additions and 0 deletions
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8
transport/internet/sockopt_windows.go
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@ -13,6 +13,8 @@ const (
TCP_FASTOPEN = 15 TCP_FASTOPEN = 15
IP_UNICAST_IF = 31 IP_UNICAST_IF = 31
IPV6_UNICAST_IF = 31 IPV6_UNICAST_IF = 31
IP_MULTICAST_IF = 9
IPV6_MULTICAST_IF = 9
) )
func setTFO(fd syscall.Handle, tfo int) error { func setTFO(fd syscall.Handle, tfo int) error {
@ -41,10 +43,16 @@ func applyOutboundSocketOptions(network string, address string, fd uintptr, conf
if err := syscall.SetsockoptInt(syscall.Handle(fd), syscall.IPPROTO_IP, IP_UNICAST_IF, int(idx)); err != nil { if err := syscall.SetsockoptInt(syscall.Handle(fd), syscall.IPPROTO_IP, IP_UNICAST_IF, int(idx)); err != nil {
return errors.New("failed to set IP_UNICAST_IF").Base(err) return errors.New("failed to set IP_UNICAST_IF").Base(err)
} }
if err := syscall.SetsockoptInt(syscall.Handle(fd), syscall.IPPROTO_IP, IP_MULTICAST_IF, int(idx)); err != nil {
return errors.New("failed to set IP_MULTICAST_IF").Base(err)
}
} else { } else {
if err := syscall.SetsockoptInt(syscall.Handle(fd), syscall.IPPROTO_IPV6, IPV6_UNICAST_IF, inf.Index); err != nil { if err := syscall.SetsockoptInt(syscall.Handle(fd), syscall.IPPROTO_IPV6, IPV6_UNICAST_IF, inf.Index); err != nil {
return errors.New("failed to set IPV6_UNICAST_IF").Base(err) return errors.New("failed to set IPV6_UNICAST_IF").Base(err)
} }
if err := syscall.SetsockoptInt(syscall.Handle(fd), syscall.IPPROTO_IPV6, IPV6_MULTICAST_IF, inf.Index); err != nil {
return errors.New("failed to set IPV6_MULTICAST_IF").Base(err)
}
} }
} }