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Date: Sat, 28 Feb 2015 18:03:26 +0300 (MSK)
From: Dmitry Morozovsky <marck@rinet.ru>
To: Ian Lepore <ian@freebsd.org>
Subject: Re: svn commit: r279361 - in head: sys/kern sys/sys usr.sbin/jail
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Ian,

On Fri, 27 Feb 2015, Ian Lepore wrote:

> Author: ian
> Date: Fri Feb 27 16:28:55 2015
> New Revision: 279361
> URL: https://svnweb.freebsd.org/changeset/base/279361
> 
> Log:
>   Allow the kern.osrelease and kern.osreldate sysctl values to be set in a
>   jail's creation parameters.  This allows the kernel version to be reliably
>   spoofed within the jail whether examined directly with sysctl or
>   indirectly with the uname -r and -K options.
>   
>   The values can only be set at jail creation time, to eliminate the need
>   for any locking when accessing the values via sysctl.
>   
>   The overridden values are inherited by nested jails (unless the config for
>   the nested jails also overrides the values).
>   
>   There is no sanity or range checking, other than disallowing an empty
>   release string or a zero release date, by design.  The system
>   administrator is trusted to set sane values.  Setting values that are
>   newer than the actual running kernel will likely cause compatibility
>   problems.
>   
>   Differential Revision:	https://reviews.freebsd.org/D1948
>   Relnotes:	yes

Thanks, very useful feature.  Just one question: no MFC planned?

[diff snipped]

-- 
Sincerely,
D.Marck                                     [DM5020, MCK-RIPE, DM3-RIPN]
[ FreeBSD committer:                                 marck@FreeBSD.org ]
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*** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru ***
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