Re: [PATCHv2] Smack: add support for modification of existing rules

[Mimi Zohar]

On Thu, 2013-01-10 at 19:42 +0100, Rafal Krypa wrote:
> Rule modifications are enabled via /smack/change-rule. Format is as follows:
> "Subject Object rwaxt rwaxt"
> 
> First two strings are subject and object labels up to 255 characters.
> Third string contains permissions to enable.
> Fourth string contains permissions to disable.
> 
> All unmentioned permissions will be left unchanged.
> If no rule previously existed, it will be created.

Changing rules on a running system could affect IMA, if the IMA policy
contains LSM based rules.  Patch "[PATCH 1/9] ima: re-initialize IMA
policy LSM info" addresses this issue.  It assumes existing LSM rules
have not been dropped.

thanks,

Mimi

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