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netd: relax binder neverallow rules for hwservices

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Relax neverallow rule restricting binder access to/from netd so that
netd can export hwbinder services to vendor components.

Continue to disallow app access to netd via binder.

Bug: 36682246
Test: build
Change-Id: I8e558ea1add6c36b966ec1da204062ea82df3f3f
This commit is contained in:
Jeff Vander Stoep 2017-07-26 12:53:21 -07:00 committed by Jeffrey Vander Stoep
parent 5a30eadc49
commit 07c650ebf2
1 changed files with 5 additions and 3 deletions
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8
public/netd.te
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@ -104,10 +104,12 @@ neverallow netd system_file:dir_file_class_set write;
# Write to files in /data/data or system files on /data
neverallow netd { app_data_file system_data_file }:dir_file_class_set write;
# only system_server, dumpstate and netd may interact with netd over binder
# only system_server and dumpstate may find netd service
neverallow { domain -system_server -dumpstate -netd } netd_service:service_manager find;
neverallow { domain -system_server -dumpstate } netd:binder call;
neverallow netd { domain -system_server -servicemanager userdebug_or_eng(`-su') }:binder call;
# apps may not interact with netd over binder.
neverallow appdomain netd:binder call;
neverallow netd { appdomain userdebug_or_eng(`-su') }:binder call;
# persist.netd.stable_secret contains RFC 7217 secret key which should never be
# leaked to other processes. Make sure it never leaks.