mediaserver needs the ability to read media_rw_data_file files.
Allow it. Similarly, this is also needed for drmserver. Addresses
the following denials:

<5>[   22.812859] type=1400 audit(1389041093.955:17): avc:  denied  { read } for  pid=1655 comm="MediaScannerSer" path="/data/media/0/DCIM/Camera/VID_20140106_124115.mp4" dev="mmcblk0p28" ino=122204 scontext=u:r:mediaserver:s0 tcontext=u:object_r:media_rw_data_file:s0 tclass=file
<5>[   22.813103] type=1400 audit(1389041093.955:18): avc:  denied  { getattr } for  pid=849 comm="Binder_2" path="/data/media/0/DCIM/Camera/VID_20140106_124115.mp4" dev="mmcblk0p28" ino=122204 scontext=u:r:mediaserver:s0 tcontext=u:object_r:media_rw_data_file:s0 tclass=file
<5>[   22.832041] type=1400 audit(1389041093.975:19): avc:  denied  { read } for  pid=849 comm="Binder_2" path="/data/media/0/DCIM/Camera/VID_20140106_124115.mp4" dev="mmcblk0p28" ino=122204 scontext=u:r:drmserver:s0 tcontext=u:object_r:media_rw_data_file:s0 tclass=file
<5>[   52.357470] type=1400 audit(1389041123.494:29): avc:  denied  { read } for  pid=2757 comm="ImageLoader" path="/data/media/0/DCIM/Camera/VID_20140106_124520.mp4" dev="mmcblk0p28" ino=122211 scontext=u:r:mediaserver:s0 tcontext=u:object_r:media_rw_data_file:s0 tclass=file
<5>[   52.357717] type=1400 audit(1389041123.494:30): avc:  denied  { getattr } for  pid=849 comm="Binder_2" path="/data/media/0/DCIM/Camera/VID_20140106_124520.mp4" dev="mmcblk0p28" ino=122211 scontext=u:r:mediaserver:s0 tcontext=u:object_r:media_rw_data_file:s0 tclass=file
<5>[   52.382276] type=1400 audit(1389041123.524:31): avc:  denied  { read } for  pid=849 comm="Binder_2" path="/data/media/0/DCIM/Camera/VID_20140106_124520.mp4" dev="mmcblk0p28" ino=122211 scontext=u:r:drmserver:s0 tcontext=u:object_r:media_rw_data_file:s0 tclass=file

Allow anyone who has access to video_device:chr_file to also
have read access to video_device:dir. Otherwise, the
chracter devices may not be reachable.

Bug: 12416198
Change-Id: I649cd52ec7f1a25afb3aea479482e3f270bfe074

When a bugreport is triggered using the device keys,
it generates a screenshot and places it into
/data/data/com.android.shell/files/bugreports. SELinux is denying
those writes.

Addresses the following denials:

<5> type=1400 audit(1389047451.385:23): avc:  denied  { call } for  pid=267 comm="Binder_1" scontext=u:r:surfaceflinger:s0 tcontext=u:r:dumpstate:s0 tclass=binder
<5> type=1400 audit(1389046083.780:37): avc:  denied  { write } for  pid=4191 comm="dumpsys" path="/data/data/com.android.shell/files/bugreports/bugreport-2014-01-06-14-07-35.txt.tmp" dev="mmcblk0p28" ino=81874 scontext=u:r:surfaceflinger:s0 tcontext=u:object_r:shell_data_file:s0 tclass=file

Bug: 12416329
Change-Id: I318145591cda500094d98103d30b784df48a67be

Too many bugs.

This reverts commit cc964543.

* commit '91811dba':
  Make mediaserver enforcing.

* commit '79ec510b':
  Make media_app enforcing.

* commit 'bc15519a':
  Make nfc enforcing.

* commit '301e61e7':
  Make mediaserver enforcing.

* commit '14a7764d':
  Make media_app enforcing.

* commit 'af288172':
  Make nfc enforcing.

* commit 'd5e316e3':
  Make radio enforcing.

* commit '15aa74f4':
  Make bluetooth enforcing.

* commit '782af9ea':
  Make radio enforcing.

* commit 'ee3cfd25':
  Make bluetooth enforcing.

* commit 'c66ea87f':
  Make surfaceflinger domain enforcing.

* commit 'aef19ebf':
  Make surfaceflinger domain enforcing.

* commit '50fd2eed':
  Confine adbd but leave it permissive for now.

* commit '4e39317c':
  Confine adbd but leave it permissive for now.

* commit '3d706559':
  Only allow PROT_EXEC for ashmem where required.

* commit '5d9913c6':
  Remove execmem permission from domain, add to appdomain.

* commit 'e7ec2f52':
  Only allow PROT_EXEC for ashmem where required.

* commit 'ad7df7bb':
  Remove execmem permission from domain, add to appdomain.

* commit '411d940e':
  Allow use of art as the Android runtime.

* commit '527316a2':
  Allow use of art as the Android runtime.

tmpfs_domain() macro defines a per-domain type and
allows access for tmpfs-backed files, including ashmem
regions.  execute-related permissions crept into it,
thereby allowing write + execute to ashmem regions for
most domains.  Move the execute permission out of tmpfs_domain()
to app_domain() and specific domains as required.
Drop execmod for now we are not seeing it.

Similarly, execute permission for /dev/ashmem crept into
binder_use() as it was common to many binder using domains.
Move it out of binder_use() to app_domain() and specific domains
as required.

Change-Id: I66f1dcd02932123eea5d0d8aaaa14d1b32f715bb
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>

execmem permission controls the ability to make an anonymous
mapping executable or to make a private file mapping writable
and executable.  Remove this permission from domain (i.e.
all domains) by default, and add it explicitly to app domains.
It is already allowed in other specific .te files as required.
There may be additional cases in device-specific policy where
it is required for proprietary binaries.

Change-Id: I902ac6f8cf2e93d46b3a976bc4dabefa3905fce6
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>

system_server and app domains need to map dalvik-cache files with PROT_EXEC.

type=1400 msg=audit(13574814.073:132): avc: denied { execute } for pid=589 comm="system_server" path="/data/dalvik-cache/system@priv-app@SettingsProvider.apk@classes.dex" dev="mmcblk0p30" ino=684132 scontext=u:r:system_server:s0 tcontext=u:object_r:dalvikcache_data_file:s0 tclass=file

Apps need to map cached dex files with PROT_EXEC.  We already allow this
for untrusted_app to support packaging of shared objects as assets
but not for the platform app domains.

type=1400 audit(1387810571.697:14): avc:  denied  { execute } for  pid=7822 comm="android.youtube" path="/data/data/com.google.android.youtube/cache/ads1747714305.dex" dev="mmcblk0p30" ino=603259 scontext=u:r:platform_app:s0 tcontext=u:object_r:platform_app_data_file:s0 tclass=file

Change-Id: I309907d591ea6044e3e6aeb57bde7508e426c033
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>

Will likely want to split into adbd_user.te vs adbd.te before
going enforcing to support adb root and adb remount on non-user builds.
Possibly take all common rules to an adbdcommon.te.

Change-Id: I63040c7f5f0fca10b3df682572c51c05e74738a7
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>

* commit 'f3988de8':
  Confine sdcardd, but leave it permissive for now.

* commit '7fa9a4ab':
  Confine dhcp, but leave it permissive for now.

* commit '588bb5c7':
  Confine sdcardd, but leave it permissive for now.

* commit 'c48fd77b':
  Confine dhcp, but leave it permissive for now.

Change-Id: I11b185ff539915174bd2da53bfaa2cad87173008
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>