** Changed in: livecd-rootfs (Ubuntu)
Status: In Progress => New
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Title:
system group creation for android container device access needs
** Changed in: livecd-rootfs (Ubuntu)
Status: Triaged = In Progress
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Title:
system group creation for android container device access
http://android-dls.com/wiki/index.php?title=Android_UIDs_and_GIDs has
the required mapping for the commonly used android groups
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Title:
system
(that should be the most minimal list vs the full list pasted in the bug
description)
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Title:
system group creation for android container device
On Wed, Jun 05, 2013 at 12:16:05PM -, Colin Watson wrote:
What interfaces does the Android side use to detect the calling group
IDs?
My understanding is that these are not *detected* at all, but are instead
hard-coded in various kernel drivers. Hence the hard-coding also on the
userspace
subscribed canonical-foundations and the phone foundations teams since
this requires discussion across both
** Changed in: livecd-rootfs (Ubuntu)
Importance: Undecided = High
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The stuff with changing the audio group's gid is particularly egregious.
That will break as soon as the base-passwd package is upgraded. You
must not ever change the gid of a global static group.
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What interfaces does the Android side use to detect the calling group
IDs? If there's any way to interpose some kind of shim there, that
would be far preferable to a scheme requiring the group IDs to match
between Android and Ubuntu; not least because the group IDs used here
are all in the range
Why was the audio group's gid changed? My understanding is that the
Android kernel has hardcoded GIDs, not hardcoded names, so if we have to
use those, we could certainly prefix the group names on the Ubuntu side
to avoid name collision.
However, I agree with Colin that having those in the range
It may also be a good idea not to actually add all those groups to the
system group list, but instead use something like libnss-extrausers in
the nss stack to have a cleanly separate list of groups that's simply
stacked on top of the system's by nss.
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