ginuerzh
38 lines
727 B
Go
38 lines
727 B
Go
package dialer
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import (
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"net"
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"syscall"
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"golang.org/x/sys/unix"
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)
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func bindDevice(network, address string, fd uintptr, ifceName string) error {
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if ifceName == "" {
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return nil
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}
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host, _, _ := net.SplitHostPort(address)
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if ip := net.ParseIP(host); ip != nil && !ip.IsGlobalUnicast() {
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return nil
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}
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ifce, err := net.InterfaceByName(ifceName)
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if err != nil {
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return err
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}
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switch network {
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case "tcp", "tcp4", "udp", "udp4":
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return unix.SetsockoptInt(int(fd), syscall.IPPROTO_IP, syscall.IP_BOUND_IF, ifce.Index)
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case "tcp6", "udp6":
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return unix.SetsockoptInt(int(fd), syscall.IPPROTO_IPV6, syscall.IPV6_BOUND_IF, ifce.Index)
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}
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return nil
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}
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func setMark(fd uintptr, mark int) error {
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return nil
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}
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