On Tue, Jan 8, 2013 at 11:40 AM, Peck, Michael A <[email protected]> wrote:
> I'm curious what kinds of per-app compatibility issues have occurred?
>
> Android recently deprecated Context.MODE_WORLD_READABLE and 
> MODE_WORLD_WRITABLE, which could help in making an argument that they really 
> don't want apps to be able to access the internal storage directories of 
> other apps?
> http://developer.android.com/reference/android/content/Context.html#MODE_WORLD_READABLE
Still do it from native code, and it's only deprecated, did they
remove it from API level 17 and above too?
>
> I did run into an app that shares world readable (and encrypted) files in its 
> internal storage directory with other apps -- that would be one example of a 
> compatibility issue.  (I'd argue that they should use a Content Provider 
> instead.)
I agree with your argument, however app compatibility is a big issue
in ensuring that Android doesn't become fragmented between versions
and OEMS. Although one can argue it's already fragmented as well.
>
> Thanks,
> Mike
>
>>-----Original Message-----
>>From: [email protected] [mailto:owner-seandroid-
>>[email protected]] On Behalf Of Stephen Smalley
>>Sent: Tuesday, January 08, 2013 9:51 AM
>>To: William Roberts
>>Cc: [email protected]
>>Subject: Re: multi user support
>>
>>On 01/08/2013 09:23 AM, Stephen Smalley wrote:
>>> On 01/07/2013 09:53 PM, William Roberts wrote:
>>>> Just wondering what the status of multi user support for tablets with
>>>> SEAndroid is, is Manta there yet?
>>>
>>> We do have support for correct labeling of secondary user app data
>>> directories in our branches and uploaded to AOSP as:
>>> https://android-review.googlesource.com/#/c/44530/
>>>
>>> Not sure if that is what you are asking though.
>>
>>One thing that we haven't explored yet is leveraging the new
>>levelFrom=user support in seapp_contexts.  That will require changes not
>>only to seapp_contexts but also to the rest of the policy to reflect the
>>change in how we are applying the MLS model, from a per-app basis to a
>>per-user basis.  It should be significantly simpler and more compatible
>>than doing it on a per-app basis.
>>
>>
>>
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-- 
Respectfully,

William C Roberts

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