netns: enable to dump full nsid translation table
Like the previous patch, the goal is to ease to convert nsids from one netns to another netns. A new attribute (NETNSA_CURRENT_NSID) is added to the kernel answer when NETNSA_TARGET_NSID is provided, thus the user can easily convert nsids. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Reviewed-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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