29 lines
744 B
Go
29 lines
744 B
Go
// Copyright (c) 2016 Arista Networks, Inc.
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// Use of this source code is governed by the Apache License 2.0
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// that can be found in the COPYING file.
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package netns
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import "golang.org/x/sys/unix"
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// close closes the file descriptor mapped to a network namespace
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func (h nsHandle) close() error {
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return unix.Close(int(h))
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}
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// fd returns the handle as a uintptr
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func (h nsHandle) fd() int {
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return int(h)
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}
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// getNs returns a file descriptor mapping to the given network namespace
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var getNs = func(nsName string) (handle, error) {
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fd, err := unix.Open(nsName, unix.O_RDONLY, 0)
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return nsHandle(fd), err
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}
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// setNs sets the process's network namespace
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var setNs = func(h handle) error {
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return unix.Setns(h.fd(), unix.CLONE_NEWNET)
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}
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