From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: netdev@vger.kernel.org, tgraf@suug.ch, davem@davemloft.net
Subject: Re: [PATCH net-next v2 0/7] netns: ease netlink use with a lot of netns
Date: Sat, 09 May 2015 23:07:17 +0200 [thread overview]
Message-ID: <554E7705.2070707@6wind.com> (raw)
In-Reply-To: <874mnn9t12.fsf@x220.int.ebiederm.org>
Le 08/05/2015 14:02, Eric W. Biederman a écrit :
>
> So I am dense. I have read through the patches and I don't see where
> you tag packets from other network namespaces with a network namespace
> id.
In patch #7, the netns id is put in the skb cb (NETLINK_CB) in the function
do_one_broadcast().
The function netlink_cmsg_listen_all_nsid() will send this information to the
userland via a cmsg data. This function is called by netlink_recvmsg().
> In fact I don't even see an attribute that is approrpriate for such
> tagging.
The netns id is the same attribute that allows to identify a peer netns
via rtnetlink.
Regards,
Nicolas
next prev parent reply other threads:[~2015-05-09 21:07 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-06 9:58 [PATCH net-next 0/6] netns: ease netlink use with a lot of netns Nicolas Dichtel
2015-05-06 9:58 ` [PATCH net-next 1/6] netns: returns always an id in __peernet2id() Nicolas Dichtel
2015-05-06 11:19 ` Thomas Graf
2015-05-06 9:58 ` [PATCH net-next 2/6] netns: always provide the id to rtnl_net_fill() Nicolas Dichtel
2015-05-06 11:25 ` Thomas Graf
2015-05-06 9:58 ` [PATCH net-next 3/6] netns: rename peernet2id() to peernet2id_alloc() Nicolas Dichtel
2015-05-06 11:27 ` Thomas Graf
2015-05-06 9:58 ` [PATCH net-next 4/6] netns: notify new nsid outside __peernet2id() Nicolas Dichtel
2015-05-06 11:48 ` Thomas Graf
2015-05-06 13:39 ` Nicolas Dichtel
2015-05-06 9:58 ` [PATCH net-next 5/6] netns: use a spin_lock to protect nsid management Nicolas Dichtel
2015-05-06 12:23 ` Thomas Graf
2015-05-06 13:40 ` Nicolas Dichtel
2015-05-06 14:05 ` Thomas Graf
2015-05-06 9:58 ` [PATCH net-next 6/6] netlink: allow to listen "all" netns Nicolas Dichtel
2015-05-06 12:10 ` Thomas Graf
2015-05-06 13:42 ` Nicolas Dichtel
2015-05-07 9:02 ` [PATCH net-next v2 0/7] netns: ease netlink use with a lot of netns Nicolas Dichtel
2015-05-07 9:02 ` [PATCH net-next v2 1/7] netns: returns always an id in __peernet2id() Nicolas Dichtel
2015-05-07 9:02 ` [PATCH net-next v2 2/7] netns: always provide the id to rtnl_net_fill() Nicolas Dichtel
2015-05-07 9:02 ` [PATCH net-next v2 3/7] netns: rename peernet2id() to peernet2id_alloc() Nicolas Dichtel
2015-05-07 9:02 ` [PATCH net-next v2 4/7] netns: notify new nsid outside __peernet2id() Nicolas Dichtel
2015-05-07 11:47 ` Thomas Graf
2015-05-07 9:02 ` [PATCH net-next v2 5/7] netns: use a spin_lock to protect nsid management Nicolas Dichtel
2015-05-07 9:02 ` [PATCH net-next v2 6/7] netlink: rename private flags and states Nicolas Dichtel
2015-05-07 11:49 ` Thomas Graf
2015-05-07 9:02 ` [PATCH net-next v2 7/7] netlink: allow to listen "all" netns Nicolas Dichtel
2015-05-07 11:55 ` Thomas Graf
2015-05-08 12:02 ` [PATCH net-next v2 0/7] netns: ease netlink use with a lot of netns Eric W. Biederman
2015-05-09 21:07 ` Nicolas Dichtel [this message]
2015-05-22 20:50 ` Alexander Holler
2015-05-22 21:04 ` Cong Wang
2015-05-22 21:12 ` Alexander Holler
2015-05-22 21:29 ` Cong Wang
2015-05-22 21:46 ` Alexander Holler
2015-05-22 21:19 ` Eric W. Biederman
2015-05-22 21:30 ` Alexander Holler
2015-05-25 7:45 ` Nicolas Dichtel
2015-05-25 10:55 ` Alexander Holler
2015-05-25 13:09 ` Nicolas Dichtel
2015-05-26 10:53 ` Alexander Holler
2015-05-26 12:10 ` Nicolas Dichtel
2015-05-26 14:36 ` Alexander Holler
2015-05-29 5:57 ` Alexander Holler
2015-05-10 2:15 ` David Miller
2015-05-20 14:19 ` [PATCH iproute2-next 0/6] Allow to monitor 'all-nsid' with ip and ip xfrm Nicolas Dichtel
2015-05-20 14:19 ` [PATCH iproute2-next 1/6] include: update linux/netlink.h Nicolas Dichtel
2015-05-20 14:19 ` [PATCH iproute2-next 2/6] man: update ip monitor page Nicolas Dichtel
2015-05-20 14:19 ` [PATCH iproute2-next 3/6] libnetlink: introduce rtnl_listen_filter_t Nicolas Dichtel
2015-05-20 14:19 ` [PATCH iproute2-next 4/6] ipmonitor: introduce print_headers Nicolas Dichtel
2015-05-20 14:20 ` [PATCH iproute2-next 5/6] ipmonitor: allows to monitor in several netns Nicolas Dichtel
2015-05-20 14:20 ` [PATCH iproute2-next 6/6] xfrmmonitor: " Nicolas Dichtel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=554E7705.2070707@6wind.com \
--to=nicolas.dichtel@6wind.com \
--cc=davem@davemloft.net \
--cc=ebiederm@xmission.com \
--cc=netdev@vger.kernel.org \
--cc=tgraf@suug.ch \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).