55 lines
848 B
Go
55 lines
848 B
Go
//go:build linux
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package netns
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import (
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"os"
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"golang.org/x/sys/unix"
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)
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func create(name string) error {
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base := "/var/run/netns"
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path := base + "/" + name
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if err := os.MkdirAll(base, 0755); err != nil {
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return err
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}
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// fichier cible
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f, err := os.Create(path)
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if err != nil {
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return err
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}
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f.Close()
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// sauvegarde du netns courant
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orig, err := os.Open("/proc/self/ns/net")
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if err != nil {
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return err
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}
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defer orig.Close()
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// nouveau netns
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if err := unix.Unshare(unix.CLONE_NEWNET); err != nil {
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return err
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}
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// bind mount du netns courant vers /var/run/netns/<name>
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if err := unix.Mount(
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"/proc/self/ns/net",
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path,
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"",
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unix.MS_BIND,
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"",
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); err != nil {
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return err
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}
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// revenir au netns original
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if err := unix.Setns(int(orig.Fd()), unix.CLONE_NEWNET); err != nil {
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return err
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}
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return nil
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}
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