netdev - Re: [PATCH] [RFC] C/R: inet4 and inet6 unicast routes (v2)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <87bpd0zl9l.fsf@caffeine.danplanet.com>
Date:	Fri, 30 Apr 2010 14:24:38 -0700
From:	Dan Smith <danms@...ibm.com>
To:	Daniel Lezcano <daniel.lezcano@...e.fr>
Cc:	containers@...ts.osdl.org,
	Vlad Yasevich <vladislav.yasevich@...com>,
	netdev@...r.kernel.org, David Miller <davem@...emloft.net>
Subject: Re: [PATCH] [RFC] C/R: inet4 and inet6 unicast routes (v2)

DL> Is it possible to enter the namespace and dump / restore the
DL> routes with NETLINK_ROUTE from userspace ? Or is it something not
DL> possible ?

I'm sure it would be doable.  However, checkpointing the routes that
way would:

(a) Be inconsistent with how we checkpoint all the other resources,
    including the other network resources we handle from the kernel
    with rtnl
(b) Require merging of the data from the resources saved in userspace
    with those saved in kernelspace
(c) Eliminate the ability for an application to easily checkpoint
    itself by making a single syscall
(d) Require this same sort of jumping back and forth between
    namespaces by the userspace task doing the checkpoint/restart

-- 
Dan Smith
IBM Linux Technology Center
email: danms@...ibm.com
--
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