From 644279ba06629627b7cac3cd6d694f2dd25b6748 Mon Sep 17 00:00:00 2001
From: Stephen Smalley <sds@tycho.nsa.gov>
Date: Fri, 21 Mar 2014 10:24:04 -0400
Subject: [PATCH] Allow binder services to use pipes passed over binder.
Resolves denials such as:
avc: denied { write } for pid=18959 comm="dumpsys" path="pipe:[42013]" dev="pipefs" ino=42013 scontext=u:r:surfaceflinger:s0 tcontext=u:r:untrusted_app:s0 tclass=fifo_file
avc: denied { use } for pid=18959 comm="dumpsys" path="pipe:[42013]" dev="pipefs" ino=42013 scontext=u:r:keystore:s0 tcontext=u:r:untrusted_app:s0 tclass=fd
avc: denied { use } for pid=18959 comm="dumpsys" path="pipe:[42013]" dev="pipefs" ino=42013 scontext=u:r:healthd:s0 tcontext=u:r:untrusted_app:s0 tclass=fd
avc: denied { write } for pid=18959 comm="dumpsys" path="pipe:[42013]" dev="pipefs" ino=42013 scontext=u:r:drmserver:s0 tcontext=u:r:untrusted_app:s0 tclass=fifo_file
avc: denied { use } for pid=18959 comm="dumpsys" path="pipe:[42013]" dev="pipefs" ino=42013 scontext=u:r:inputflinger:s0 tcontext=u:r:untrusted_app:s0 tclass=fd
avc: denied { write } for pid=18959 comm="dumpsys" path="pipe:[42013]" dev="pipefs" ino=42013 scontext=u:r:inputflinger:s0 tcontext=u:r:untrusted_app:s0 tclass=fifo_file
avc: denied { write } for pid=18959 comm="dumpsys" path="pipe:[42013]" dev="pipefs" ino=42013 scontext=u:r:mediaserver:s0 tcontext=u:r:untrusted_app:s0 tclass=fifo_file
Change-Id: I289dcf4b2c5897b7a10e41e5dd8d56ef4b9a4a08
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
---
binderservicedomain.te | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/binderservicedomain.te b/binderservicedomain.te
index 599030145..757d80774 100644
--- a/binderservicedomain.te
+++ b/binderservicedomain.te
@@ -7,3 +7,7 @@ allow binderservicedomain shell_data_file:file { getattr write };
# Allow dumpsys to work from adb shell
allow binderservicedomain devpts:chr_file rw_file_perms;
+
+# Receive and write to a pipe received over Binder from an app.
+allow binderservicedomain appdomain:fd use;
+allow binderservicedomain appdomain:fifo_file write;
--
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