From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nicolas Dichtel Subject: [PATCH net-next v3 0/5] Ease to interpret net-nsid Date: Thu, 22 Nov 2018 23:22:10 +0100 Message-ID: <20181122222215.23554-1-nicolas.dichtel@6wind.com> References: <20181122155031.3495-1-nicolas.dichtel@6wind.com> Cc: netdev@vger.kernel.org, davem@davemloft.net To: dsahern@gmail.com Return-path: Received: from host.76.145.23.62.rev.coltfrance.com ([62.23.145.76]:34378 "EHLO proxy.6wind.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2392504AbeKWJEA (ORCPT ); Fri, 23 Nov 2018 04:04:00 -0500 In-Reply-To: <20181122155031.3495-1-nicolas.dichtel@6wind.com> Sender: netdev-owner@vger.kernel.org List-ID: The goal of this series is to ease the interpretation of nsid received in netlink messages from other netns (when the user uses NETLINK_F_LISTEN_ALL_NSID). After this series, with a patched iproute2: $ ip netns add foo $ ip netns add bar $ touch /var/run/netns/init_net $ mount --bind /proc/1/ns/net /var/run/netns/init_net $ ip netns set init_net 11 $ ip netns set foo 12 $ ip netns set bar 13 $ ip netns init_net (id: 11) bar (id: 13) foo (id: 12) $ ip -n foo netns set init_net 21 $ ip -n foo netns set foo 22 $ ip -n foo netns set bar 23 $ ip -n foo netns init_net (id: 21) bar (id: 23) foo (id: 22) $ ip -n bar netns set init_net 31 $ ip -n bar netns set foo 32 $ ip -n bar netns set bar 33 $ ip -n bar netns init_net (id: 31) bar (id: 33) foo (id: 32) $ ip netns list-id target-nsid 12 nsid 21 current-nsid 11 (iproute2 netns name: init_net) nsid 22 current-nsid 12 (iproute2 netns name: foo) nsid 23 current-nsid 13 (iproute2 netns name: bar) $ ip -n bar netns list-id target-nsid 32 nsid 31 nsid 21 current-nsid 31 (iproute2 netns name: init_net) v2 -> v3: - patch 5/5: account NETNSA_CURRENT_NSID in rtnl_net_get_size() v1 -> v2: - patch 1/5: remove net from struct rtnl_net_dump_cb - patch 2/5: new in this version - patch 3/5: use a bool to know if rtnl_get_net_ns_capable() was called - patch 5/5: use struct net_fill_args include/uapi/linux/net_namespace.h | 2 + net/core/net_namespace.c | 158 +++++++++++++++++++++++++++++++------ 2 files changed, 134 insertions(+), 26 deletions(-) Comments are welcomed, Regards, Nicolas