From c0d14767e68f90138c8b017bf47e8b3e4fd1c01e Mon Sep 17 00:00:00 2001
From: Nick Kralevich <nnk@google.com>
Date: Wed, 25 Jun 2014 12:30:11 -0700
Subject: [PATCH] dumpstate: transition into vdc domain
dumpstate uses vdc to collect asec lists and do a vold dump.
Force a transition into the vdc domain when this occurs.
Addresses the following denial:
<4>[ 1099.623572] type=1400 audit(1403716545.565:7): avc: denied { execute } for pid=6987 comm="dumpstate" name="vdc" dev="mmcblk0p8" ino=222 scontext=u:r:dumpstate:s0 tcontext=u:object_r:vdc_exec:s0 tclass=file permissive=0
Change-Id: I4bd9f3ad83480f8c9f9843ffe136295c582f96fe
---
dumpstate.te | 4 ++--
vdc.te | 13 +++++++++++++
2 files changed, 15 insertions(+), 2 deletions(-)
diff --git a/dumpstate.te b/dumpstate.te
index e4d6dc9e6..222122247 100644
--- a/dumpstate.te
+++ b/dumpstate.te
@@ -49,8 +49,8 @@ allow dumpstate { appdomain system_server }:process signal;
# This list comes from native_processes_to_dump in dumpstate/utils.c
allow dumpstate { drmserver mediaserver sdcardd surfaceflinger }:process signal;
-# The vdc command needs to talk to the vold socket.
-unix_socket_connect(dumpstate, vold, vold)
+# Execute and transition to the vdc domain
+domain_auto_trans(dumpstate, vdc_exec, vdc)
# Vibrate the device after we're done collecting the bugreport
# /sys/class/timed_output/vibrator/enable
diff --git a/vdc.te b/vdc.te
index a5ca2f29c..8b6a93a49 100644
--- a/vdc.te
+++ b/vdc.te
@@ -1,6 +1,9 @@
# vdc spawned from init for the following services:
# defaultcrypto
# encrypt
+#
+# We also transition into this domain from dumpstate, when
+# collecting bug reports.
type vdc, domain;
type vdc_exec, exec_type, file_type;
@@ -8,3 +11,13 @@ type vdc_exec, exec_type, file_type;
init_daemon_domain(vdc)
unix_socket_connect(vdc, vold, vold)
+
+# vdc sends information back to dumpstate when "adb bugreport" is used
+allow vdc dumpstate:fd use;
+allow vdc dumpstate:unix_stream_socket { read write getattr };
+
+# vdc information is written to shell owned bugreport files
+allow vdc shell_data_file:file { write getattr };
+
+# Why?
+allow vdc dumpstate:unix_dgram_socket { read write };
--
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