76aab82cb3
This attribute is being actively removed from policy. Since
attributes are not being versioned, partners must not be able to
access and use this attribute. Move it from private and verify in
the logs that rild and tee are not using these permissions.
Bug: 38316109
Test: build and boot Marlin
Test: Verify that rild and tee are not being granted any of these
permissions.
Change-Id: I31beeb5bdf3885195310b086c1af3432dc6a349b
59 lines
2.1 KiB
Text
59 lines
2.1 KiB
Text
# perfprofd - perf profile collection daemon
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type perfprofd, domain;
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type perfprofd_exec, exec_type, file_type;
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userdebug_or_eng(`
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typeattribute perfprofd coredomain;
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typeattribute perfprofd mlstrustedsubject;
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# perfprofd needs to control CPU hot-plug in order to avoid kernel
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# perfevents problems in cases where CPU goes on/off during measurement;
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# this means read access to /sys/devices/system/cpu/possible
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# and read/write access to /sys/devices/system/cpu/cpu*/online
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allow perfprofd sysfs_devices_system_cpu:file rw_file_perms;
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# perfprofd checks for the existence of and then invokes simpleperf;
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# simpleperf retains perfprofd domain after exec
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allow perfprofd system_file:file rx_file_perms;
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# perfprofd reads a config file from /data/data/com.google.android.gms/files
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allow perfprofd app_data_file:file r_file_perms;
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allow perfprofd app_data_file:dir search;
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allow perfprofd self:capability { dac_override };
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# perfprofd opens a file for writing in /data/misc/perfprofd
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allow perfprofd perfprofd_data_file:file create_file_perms;
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allow perfprofd perfprofd_data_file:dir rw_dir_perms;
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# perfprofd uses the system log
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read_logd(perfprofd);
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write_logd(perfprofd);
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# perfprofd inspects /sys/power/wake_unlock
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wakelock_use(perfprofd);
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# simpleperf uses ioctl() to turn on kernel perf events measurements
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allow perfprofd self:capability sys_admin;
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# simpleperf needs to examine /proc to collect task/thread info
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r_dir_file(perfprofd, domain)
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# simpleperf needs to access /proc/<pid>/exec
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allow perfprofd self:capability { sys_resource sys_ptrace };
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neverallow perfprofd domain:process ptrace;
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# simpleperf needs open/read any file that turns up in a profile
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# to see whether it has a build ID
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allow perfprofd exec_type:file r_file_perms;
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# simpleperf examines debugfs on startup to collect tracepoint event types
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allow perfprofd debugfs_tracing:file r_file_perms;
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# simpleperf is going to execute "sleep"
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allow perfprofd toolbox_exec:file rx_file_perms;
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# needed for simpleperf on some kernels
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allow perfprofd self:capability ipc_lock;
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')
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