mirror of
https://github.com/e1732a364fed/v2ray_simple.git
synced 2025-09-27 05:05:53 +08:00
55 lines
1.3 KiB
Go
55 lines
1.3 KiB
Go
package netLayer
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import (
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"net"
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"github.com/e1732a364fed/v2ray_simple/utils"
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"go.uber.org/zap"
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"golang.org/x/sys/unix"
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)
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func SetSockOpt(fd int, sockopt *Sockopt, isudp bool, isipv6 bool) {
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if sockopt.Device != "" {
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bindToDevice(fd, sockopt.Device, isipv6)
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}
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}
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func bindToDevice(fd int, device string, is6 bool) {
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iface, err := net.InterfaceByName(device)
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if err != nil {
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if ce := utils.CanLogErr("BindToDevice failed, seems name wrong."); ce != nil {
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ce.Write(zap.Error(err))
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}
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return
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}
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if is6 {
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if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_IPV6, unix.IPV6_BOUND_IF, iface.Index); err != nil {
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if ce := utils.CanLogErr("BindToDevice failed, ipv6"); ce != nil {
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ce.Write(zap.Error(err))
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}
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return
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}
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} else {
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if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_IP, unix.IP_BOUND_IF, iface.Index); err != nil {
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if ce := utils.CanLogErr("BindToDevice failed"); ce != nil {
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ce.Write(zap.Error(err))
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}
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return
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}
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}
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/*
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开发笔记：
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原代码与v2ray s中的代码一致，但是实测时，发现
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ipv6 绑定会报错invalid argument
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参考 https://github.com/xjasonlyu/tun2socks/pull/192 以及 wireguard-go
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原来不能两个都绑定，要依据是否为ipv6来分别处理，否则在ipv4绑定 ipv6会返回 invalid argument
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*/
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}
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