From e31341ece10aa9f21ad2111348c761bffbce3f93 Mon Sep 17 00:00:00 2001
From: Marco Nelissen <marcone@google.com>
Date: Fri, 5 Feb 2016 12:55:26 -0800
Subject: [PATCH] Trim down mediaextractor rules
Change-Id: I0cfc604676dc67701fdd5cdd1c143974d7200d07
---
mediaextractor.te | 32 +++-----------------------------
1 file changed, 3 insertions(+), 29 deletions(-)
diff --git a/mediaextractor.te b/mediaextractor.te
index 13ea661e8..5936eb6ea 100644
--- a/mediaextractor.te
+++ b/mediaextractor.te
@@ -11,27 +11,7 @@ binder_call(mediaextractor, binderservicedomain)
binder_call(mediaextractor, appdomain)
binder_service(mediaextractor)
-allow mediaextractor kernel:system module_request;
-
-# Needed on some devices for playing DRM protected content,
-# but seems expected and appropriate for all devices.
-unix_socket_connect(mediaextractor, drmserver, drmserver)
-
-allow mediaextractor drmserver_service:service_manager find;
-allow mediaextractor mediaextractor_service:service_manager { add find };
-allow mediaextractor processinfo_service:service_manager find;
-
-use_drmservice(mediaextractor)
-allow mediaextractor drmserver:drmservice {
- consumeRights
- setPlaybackStatus
- openDecryptSession
- closeDecryptSession
- initializeDecryptUnit
- decrypt
- finalizeDecryptUnit
- pread
-};
+allow mediaextractor mediaextractor_service:service_manager add;
###
### neverallow rules
@@ -42,11 +22,5 @@ allow mediaextractor drmserver:drmservice {
neverallow mediaextractor { file_type fs_type }:file execute_no_trans;
# mediaextractor should never need network access. Disallow all sockets
-# other than unix sockets i.e. unix_stream_socket and unix_dgram_socket
-neverallow mediaextractor domain:{
- socket tcp_socket udp_socket rawip_socket netlink_socket packet_socket
- key_socket appletalk_socket netlink_route_socket netlink_firewall_socket
- netlink_tcpdiag_socket netlink_nflog_socket netlink_xfrm_socket
- netlink_selinux_socket netlink_audit_socket netlink_ip6fw_socket
- netlink_dnrt_socket netlink_kobject_uevent_socket tun_socket
- } *;
+# other than those needed for normal system functions
+neverallow mediaextractor { domain -debuggerd -dumpstate -adbd -mediaextractor -logd userdebug_or_eng(`-su')}:socket_class_set *;
--
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