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https://github.com/XTLS/Xray-core.git
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binding socket interface to sockopt_darwin.go
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parent
4f6042c69f
commit
07ae08126c
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@ -1,6 +1,7 @@
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package internet
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import (
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network "net"
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"os"
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"syscall"
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"unsafe"
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@ -106,6 +107,14 @@ func applyOutboundSocketOptions(network string, address string, fd uintptr, conf
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return err
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}
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}
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if config.Interface != "" {
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InterfaceIndex := getInterfaceIndexByName(config.Interface)
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if InterfaceIndex != 0 {
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if err := unix.SetsockoptInt(int(fd), syscall.IPPROTO_IP, syscall.IP_BOUND_IF, InterfaceIndex); err != nil {
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return newError("failed to set Interface").Base(err)
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}
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}
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}
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if config.TcpKeepAliveIdle > 0 || config.TcpKeepAliveInterval > 0 {
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if config.TcpKeepAliveIdle > 0 {
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@ -148,6 +157,15 @@ func applyInboundSocketOptions(network string, fd uintptr, config *SocketConfig)
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return err
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}
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}
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if config.Interface != "" {
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InterfaceIndex := getInterfaceIndexByName(config.Interface)
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if InterfaceIndex != 0 {
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if err := unix.SetsockoptInt(int(fd), syscall.IPPROTO_IP, syscall.IP_BOUND_IF, InterfaceIndex); err != nil {
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return newError("failed to set Interface").Base(err)
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}
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}
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}
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if config.TcpKeepAliveIdle > 0 || config.TcpKeepAliveInterval > 0 {
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if config.TcpKeepAliveIdle > 0 {
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if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_TCP, unix.TCP_KEEPALIVE, int(config.TcpKeepAliveInterval)); err != nil {
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@ -183,3 +201,24 @@ func setReuseAddr(fd uintptr) error {
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func setReusePort(fd uintptr) error {
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return nil
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}
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func getInterfaceIndexByName(name string) int {
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ifaces, err := network.Interfaces()
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if err == nil {
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for _, iface := range ifaces {
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if (iface.Flags&network.FlagUp == network.FlagUp) && (iface.Flags&network.FlagLoopback != network.FlagLoopback) {
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addrs, _ := iface.Addrs()
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for _, addr := range addrs {
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if ipnet, ok := addr.(*network.IPNet); ok && !ipnet.IP.IsLoopback() {
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if ipnet.IP.To4() != nil {
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if iface.Name == name {
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return iface.Index
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}
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}
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}
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}
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}
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}
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}
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return 0
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}
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