From aa9711f82b0bac0f66e147d4bbe56bfaec42f861 Mon Sep 17 00:00:00 2001
From: Andreas Gampe <agampe@google.com>
Date: Fri, 22 Dec 2017 13:05:28 -0800
Subject: [PATCH] Sepolicy: Introduce perfprofd binder service
Add policy for the perfprofd binder service.
For now, only allow su to talk to it.
Test: m
Change-Id: I690f75460bf513cb326314cce633fa25453515d6
---
private/compat/26.0/26.0.ignore.cil | 1 +
private/service_contexts | 1 +
public/perfprofd.te | 18 ++++++++++++++++++
public/service.te | 1 +
4 files changed, 21 insertions(+)
diff --git a/private/compat/26.0/26.0.ignore.cil b/private/compat/26.0/26.0.ignore.cil
index 790133efa..e359935de 100644
--- a/private/compat/26.0/26.0.ignore.cil
+++ b/private/compat/26.0/26.0.ignore.cil
@@ -27,6 +27,7 @@
netd_stable_secret_prop
network_watchlist_service
package_native_service
+ perfprofd_service
property_info
slice_service
stats
diff --git a/private/service_contexts b/private/service_contexts
index 10d8d0995..b8d05e250 100644
--- a/private/service_contexts
+++ b/private/service_contexts
@@ -111,6 +111,7 @@ otadexopt u:object_r:otadexopt_service:s0
overlay u:object_r:overlay_service:s0
package u:object_r:package_service:s0
package_native u:object_r:package_native_service:s0
+perfprofd u:object_r:perfprofd_service:s0
permission u:object_r:permission_service:s0
persistent_data_block u:object_r:persistent_data_block_service:s0
phone_msim u:object_r:radio_service:s0
diff --git a/public/perfprofd.te b/public/perfprofd.te
index cb4a14409..1f4de3163 100644
--- a/public/perfprofd.te
+++ b/public/perfprofd.te
@@ -96,4 +96,22 @@ userdebug_or_eng(`
dontaudit perfprofd shell_data_file:dir *;
dontaudit perfprofd shell_data_file:file *;
+ # Allow perfprofd to publish a binder service and make binder calls.
+ binder_use(perfprofd)
+ add_service(perfprofd, perfprofd_service)
+
+ # Use devpts for streams from cmd.
+ #
+ # This is normally granted to binderservicedomain, but this service
+ # has tighter restrictions on the callers (see below), so must enable
+ # this manually.
+ allow perfprofd devpts:chr_file rw_file_perms;
+
+ # Use socket & pipe supplied by su, for cmd perfprofd dump.
+ allow perfprofd su:unix_stream_socket { read write getattr sendto };
+ allow perfprofd su:fifo_file r_file_perms;
+
+ # For now, only allow su to communicate with us.
+ neverallow domain perfprofd:binder call;
+ neverallow perfprofd { domain -servicemanager -su }:binder call;
')
diff --git a/public/service.te b/public/service.te
index e48d4b705..704e2452e 100644
--- a/public/service.te
+++ b/public/service.te
@@ -20,6 +20,7 @@ type mediacodec_service, service_manager_type;
type mediadrmserver_service, service_manager_type;
type netd_service, service_manager_type;
type nfc_service, service_manager_type;
+type perfprofd_service, service_manager_type;
type radio_service, service_manager_type;
type storaged_service, service_manager_type;
type surfaceflinger_service, app_api_service, ephemeral_app_api_service, service_manager_type;
--
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