From: Mimi Zohar <zohar@linux.ibm.com>
To: rishi gupta <gupt21@gmail.com>, linux-integrity@vger.kernel.org
Subject: Re: OTA does not work with IMA due to xattr not supported by zip
Date: Tue, 08 Jan 2019 15:58:41 -0500 [thread overview]
Message-ID: <1546981121.19931.130.camel@linux.ibm.com> (raw)
In-Reply-To: <CALUj-gsiY+_K_PM2kAXvVFU+wntq6tQaqUk+BVzwA3o-7nhCPw@mail.gmail.com>
On Tue, 2019-01-08 at 06:56 +0530, rishi gupta wrote:
> Hi Team,
>
> Android and android recovery based implementation for Linux, generates
> ota package which is a zipped archive.
>
> I observed that xattr gets dropped when creating zip archive and
> therefore after OTA system will not boot if IMA_APPRAISE_SIGNED_INIT
> is used.
>
> This essentially means that IMA may not be used in commercial products
> requiring OTA or I missed something or there is a workaround to such
> problem.
>
> https://source.android.com/devices/tech/ota/tools
Ok. Some applications support xattrs (eg. RPM, tar); others don't
(eg. Debian packages, CPIO/initramfs). We worked with the RPM
community to add xattr support. Multiple attempts have been made to
add xattr support to Debian packages.
Mimi
next prev parent reply other threads:[~2019-01-08 20:58 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-08 1:26 OTA does not work with IMA due to xattr not supported by zip rishi gupta
2019-01-08 20:58 ` Mimi Zohar [this message]
2019-01-10 6:46 ` rishi gupta
2019-01-10 16:18 ` Mimi Zohar
2019-01-10 18:20 ` Matthew Garrett
2019-01-13 10:58 ` rishi gupta
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