From 721f1adf53be30eda7668d09ba271cc21aeb4fa1 Mon Sep 17 00:00:00 2001
From: Stephen Smalley <sds@tycho.nsa.gov>
Date: Thu, 13 Mar 2014 15:35:46 -0400
Subject: [PATCH] Allow drmserver and mediaserver to read apk files.
Required to support passing resources via open apk files over Binder.
Resolves denials such as:
avc: denied { read } for pid=31457 comm="SoundPoolThread" path="/mnt/asec/au.com.shiftyjelly.pocketcasts-1/pkg.apk" dev="dm-10" ino=12 scontext=u:r:mediaserver:s0 tcontext=u:object_r:asec_apk_file:s0 tclass=file
avc: denied { read } for pid=31439 comm="Binder_2" path="/mnt/asec/au.com.shiftyjelly.pocketcasts-1/pkg.apk" dev="dm-10" ino=12 scontext=u:r:drmserver:s0 tcontext=u:object_r:asec_apk_file:s0 tclass=file
We do not allow open as it is not required (i.e. the files
are passed as open files over Binder or local socket and opened by the
client).
Change-Id: Ib0941df1e9aac8d20621a356d2d212b98471abbc
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
---
drmserver.te | 4 ++++
mediaserver.te | 3 ++-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/drmserver.te b/drmserver.te
index b4191118d..c8e0b2170 100644
--- a/drmserver.te
+++ b/drmserver.te
@@ -37,3 +37,7 @@ allow drmserver apk_data_file:sock_file unlink;
# After taking a video, drmserver looks at the video file.
r_dir_file(drmserver, media_rw_data_file)
+
+# Read resources from open apk files passed over Binder.
+allow drmserver apk_data_file:file { read getattr };
+allow drmserver asec_apk_file:file { read getattr };
diff --git a/mediaserver.te b/mediaserver.te
index faec50dad..43783d653 100644
--- a/mediaserver.te
+++ b/mediaserver.te
@@ -36,8 +36,9 @@ allow mediaserver audio_device:chr_file rw_file_perms;
# XXX Label with a specific type?
allow mediaserver sysfs:file rw_file_perms;
-# XXX Why?
+# Read resources from open apk files passed over Binder.
allow mediaserver apk_data_file:file { read getattr };
+allow mediaserver asec_apk_file:file { read getattr };
# Access camera device.
allow mediaserver camera_device:chr_file rw_file_perms;
--
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