Update transaction log permissions.
I locked down binderfs in Android V (this release still), but
part of it was opened up too much, so transactions restricted
to userdebug.
transaction_log and failed_transaction_log are not used in AOSP,
but they are requested by partners.
Bug: 316970771 for transactions
Bug: 336711420 for request to open up transaction history logs
Test: boot, bugreport, also:
:) adb shell ls -Z /dev/binderfs/binder_logs
u:object_r:binderfs_logs_transaction_history:s0 failed_transaction_log
u:object_r:binderfs_logs_proc:s0 proc
u:object_r:binderfs_logs:s0 state
u:object_r:binderfs_logs_stats:s0 stats
u:object_r:binderfs_logs_transaction_history:s0 transaction_log
u:object_r:binderfs_logs_transactions:s0 transactions
:) adb shell cat /dev/binderfs/binder_logs/transaction_log
10058502: reply from 6450:8668 to 6766:6766 context binder node 0 handle -1 size 36:0 ret 0/0 l=0
10058503: call from 6766:6766 to 6450:0 context binder node 199747 handle 23 size 116:0 ret 0/0 l=0
10058504: reply from 6450:8668 to 6766:6766 context binder node 0 handle -1 size 12:0 ret 0/0 l=0
10058505: call from 6766:6766 to 6450:0 context binder node 199747 handle 23 size 84:0 ret 0/0 l=0
...
:) adb shell cat /dev/binderfs/binder_logs/failed_transaction_log
26418: reply from 584:1568 to 0:0 context binder node 0 handle -1 size 20:0 ret 29189/0 l=3194
57265: async from 2978:4304 to 3039:0 context binder node 40111 handle 6 size 96:0 ret 29189/-3 l=3465
57269: call from 4437:4613 to 670:0 context binder node 57183 handle 44 size 116:0 ret 29189/-3 l=3465
57288: async from 4252:4450 to 3039:0 context binder node 34895 handle 1 size 92:0 ret 29189/-3 l=3465
...
Change-Id: I73e570dee8e59e76acaf0def615701e0e85e207f
diff --git a/private/dumpstate.te b/private/dumpstate.te
index bccbafd..53a6473 100644
--- a/private/dumpstate.te
+++ b/private/dumpstate.te
@@ -129,7 +129,9 @@
binder_call(dumpstate, gsid)
#Allow access to /dev/binderfs/binder_logs
-allow dumpstate binderfs_logs_transactions:file r_file_perms;
+userdebug_or_eng(`
+ allow dumpstate binderfs_logs_transactions:file r_file_perms;
+')
r_dir_file(dumpstate, ota_metadata_file)