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Date: Thu, 17 Sep 2015 11:40:59 +0200 From: Jiri Benc <jbenc@...hat.com> To: Rick Jones <rick.jones2@...com> Cc: Ani Sinha <ani@...sta.com>, "netdev@...r.kernel.org" <netdev@...r.kernel.org> Subject: Re: list of all network namespaces On Wed, 16 Sep 2015 17:54:34 -0700, Rick Jones wrote: > On 09/16/2015 05:46 PM, Ani Sinha wrote: > > just a stupid question. Is it possible to get a list of all active > > network namespaces in the kernel through /proc or some other > > interface? Not reliably and not efficiently. You can look at what plotnetcfg does: https://github.com/jbenc/plotnetcfg/blob/master/netns.c > Presumably you could copy what "ip netns" does, which appears to be to > look in /var/run/netns . At least that is what an strace of that > command suggests. That only works for namespaces added by the ip tool (and presumably a few other tools which leave a symlink in /var/run/netns as a courtesy). Depending on what you need, it may be enough. Be aware that you won't find all net namespaces in the system this way, though. Jiri -- Jiri Benc -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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