The problem is that /var/run/netns/ directory contains all the network namespaces, except the root namespace. So I am not sure, how to get the fd, that should be passed to the following kernel call:
syscall(__NR_setns, fd, CLONE_NEWNET)
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user389238
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AFAIU, you can use /proc/<pid>/ns/net.
Oleksandr Kravchuk
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Yes, figured this out. Except the
should be 1, not the current process (a.k.a /proc/self/ns/net). – user389238 May 23 '12 at 17:46