# Domain where the postinstall program runs during the update.
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# Extend the permissions in this domain to allow this program to access other
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# files needed by the specific device on your device's sepolicy directory.
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type postinstall, domain;
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# Allow postinstall to write to its stdout/stderr when redirected via pipes to
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# update_engine.
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allow postinstall update_engine_common:fd use;
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allow postinstall update_engine_common:fifo_file rw_file_perms;
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# Allow postinstall to read and execute directories and files in the same
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# mounted location.
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allow postinstall postinstall_file:file rx_file_perms;
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allow postinstall postinstall_file:lnk_file r_file_perms;
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allow postinstall postinstall_file:dir r_dir_perms;
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# Allow postinstall to execute the shell or other system executables.
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allow postinstall shell_exec:file rx_file_perms;
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allow postinstall system_file:file rx_file_perms;
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allow postinstall toolbox_exec:file rx_file_perms;
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# Allow postinstall to execute shell in recovery.
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recovery_only(`
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allow postinstall rootfs:file rx_file_perms;
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')
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#
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# For OTA dexopt.
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#
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# Allow postinstall scripts to talk to the system server.
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binder_use(postinstall)
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binder_call(postinstall, system_server)
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# Need to talk to the otadexopt service.
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allow postinstall otadexopt_service:service_manager find;
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# Allow postinstall scripts to trigger f2fs garbage collection
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allow postinstall sysfs_fs_f2fs:file rw_file_perms;
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allow postinstall sysfs_fs_f2fs:dir r_dir_perms;
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# No domain other than update_engine and recovery (via update_engine_sideload)
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# should transition to postinstall, as it is only meant to run during the
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# update.
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neverallow { domain -update_engine -recovery } postinstall:process { transition dyntransition };
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