This change folds the shared_app, media_app, and release_app
domains into untrusted_app, reducing the set of app domains down
to just distinct domains for the fixed UID apps (e.g. system_app, bluetooth,
nfc, radio), a single domain for apps signed by the platform key
(platform_app), and a single domain for all other apps (untrusted_app).
Thus, SELinux only distinguishes when already distinguished by a predefined
Android ID (AID) or by the platform certificate (which get the signature-only
Android permissions and thus may require special OS-level accesses).

It is still possible to introduce specific app domains for specific
apps by adding signer and package stanzas to mac_permissions.xml,
but this can be done on an as-needed basis for specialized apps that
require particular OS-level permissions outside the usual set.

As there is now only a single platform app domains, get rid of the
platformappdomain attribute and platform_app_domain() macro.  We used
to add mlstrustedsubject to those domains but drop this since we are not
using MLS in AOSP presently; we can revisit which domains need it if/when
we use MLS.

Since we are dropping the shared, media, and release seinfo entries from
seapp_contexts, drop them from mac_permissions.xml as well.  However,
we leave the keys.conf entries in case someone wants to add a signer
entry in the future for specific apps signed by those keys to
mac_permissions.xml.

Change-Id: I877192cca07360c4a3c0ef475f016cc273e1d968
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>

Copied from our tree, adjusted to note relationship to keys.conf
and to be consistent with the AOSP implementation.

Change-Id: I09ba86d4c9a1b11a8865890e11283456ea2ffbcf
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>

A prior merge accidentally dropped the seinfo tag from the
release keys stanza.

Change-Id: I99f9ea8d0981c5324c3875896b0673552a03d2ca
Signed-off-by: rpcraig <rpcraig@tycho.ncsc.mil>

This reverts commit 31d1a40b

Change-Id: I70aab6f01b9a74512dcbd9bff167890747e54355

This reverts commit 60d4d71e

This should (finally) be fixed in https://android-review.googlesource.com/#/c/54730/

Change-Id: I3dd358560f7236f28387ffbe247fc2b004e303ea

This reverts commit cd4104e8

This builds clean locally, but seems to explode on the build servers. Reverting until there's a solution.

Change-Id: I09200db37c193f39c77486d5957a8f5916e38aa0

This reverts commit b24c30b4

Reverting the changes that depend on insertkeys until the issues there are resolved.

Change-Id: Ie7e0d6657d8e7cfb44fc3efa2f99c8d1011a0fe1

Rewrite all stanzas to only include seinfo tags.

Change-Id: I4d528ce092ec8d1aac15195ed3a8e307d604607e
Signed-off-by: rpcraig <rpcraig@tycho.ncsc.mil>

This reverts commit 1446e714

Hidden dependency has been resolved.

Change-Id: Ia535c0b9468ea5f705dff9813186a7fa8bab84ae

This reverts commit 22fc0410

Change-Id: I2d91b1262e8d0e82a21ea7c5333b1e86f3ed9bee

This reverts commit 22fc0410

Change-Id: I2d91b1262e8d0e82a21ea7c5333b1e86f3ed9bee

Support the inseretion of the public key from pem
files into the mac_permissions.xml file at build
time.

Change-Id: Ia42b6cba39bf93723ed3fb85236eb8f80a08962a

This was moved from external/mac-policy.git