platform_system_sepolicy/public/extra_free_kbytes.te
Suren Baghdasaryan 6988677f22 Allow init to execute extra_free_kbytes.sh script
extra_free_kbytes.sh is used by init to set /sys/vm/watermark_scale_factor
value. Allow init to execute extra_free_kbytes.sh and the script to access
/proc/sys/vm/watermark_scale_factor and /proc/sys/vm/extra_free_kbytes
files.

Bug: 109664768
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I55ec07e12a1cc5322cfdd4a48d0bdc607f45d832
2021-08-17 17:02:38 +00:00

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# The extra_free_kbytes.sh script run by init.
type extra_free_kbytes, domain;
type extra_free_kbytes_exec, system_file_type, exec_type, file_type;
# required permissions to run the script from init
allow extra_free_kbytes shell_exec:file rx_file_perms;
allow extra_free_kbytes system_file:file x_file_perms;
allow extra_free_kbytes toolbox_exec:file rx_file_perms;
# files used by the script
allow extra_free_kbytes proc_extra_free_kbytes:file rw_file_perms;
allow extra_free_kbytes proc_watermark_scale_factor:file rw_file_perms;
allow extra_free_kbytes proc_zoneinfo:file r_file_perms;