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98 lines
2.9 KiB
98 lines
2.9 KiB
# volume manager
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type iorapd, domain;
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type iorapd_exec, exec_type, file_type, system_file_type;
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type iorapd_tmpfs, file_type;
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r_dir_file(iorapd, rootfs)
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# Allow read/write /proc/sys/vm/drop/caches
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allow iorapd proc_drop_caches:file rw_file_perms;
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# Give iorapd a place where only iorapd can store files; everyone else is off limits
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allow iorapd iorapd_data_file:dir create_dir_perms;
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allow iorapd iorapd_data_file:file create_file_perms;
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# Allow iorapd to publish a binder service and make binder calls.
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binder_use(iorapd)
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add_service(iorapd, iorapd_service)
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# Allow iorapd to call into the system server so it can check permissions.
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binder_call(iorapd, system_server)
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allow iorapd permission_service:service_manager find;
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# IUserManager
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allow iorapd user_service:service_manager find;
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# IPackageManagerNative
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allow iorapd package_native_service:service_manager find;
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# Allow dumpstate (bugreport) to call into iorapd.
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allow iorapd dumpstate:fd use;
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allow iorapd dumpstate:fifo_file write;
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# talk to batteryservice
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binder_call(iorapd, healthd)
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# TODO: does each of the service_manager allow finds above need the binder_call?
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# iorapd temporarily changes its priority when running benchmarks
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allow iorapd self:global_capability_class_set sys_nice;
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# Allow to access Perfetto traced's privileged consumer socket to start/stop
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# tracing sessions and read trace data.
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unix_socket_connect(iorapd, traced_consumer, traced)
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# Allow iorapd to execute compilation (iorap.cmd.compiler) in idle time.
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allow iorapd system_file:file rx_file_perms;
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# Allow iorapd to send signull to iorap_inode2filename and iorap_prefetcherd.
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allow iorapd iorap_inode2filename:process signull;
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allow iorapd iorap_prefetcherd:process signull;
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# Allowing system_server to check for the existence and size of files under iorapd
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# dir without collecting any sensitive app data.
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# This is used to predict if iorapd is doing prefetching or not.
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allow system_server iorapd_data_file:dir { getattr open read search };
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allow system_server iorapd_data_file:file getattr;
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###
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### neverallow rules
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###
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neverallow {
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domain
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-iorapd
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} iorapd_data_file:dir ~{ open create read getattr setattr search relabelto ioctl };
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neverallow {
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domain
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-init
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-iorapd
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-system_server
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} iorapd_data_file:dir *;
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neverallow {
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domain
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-kernel
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-iorapd
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} iorapd_data_file:notdevfile_class_set ~{ relabelto getattr };
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neverallow {
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domain
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-init
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-kernel
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-vendor_init
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-iorapd
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-system_server
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} { iorapd_data_file }:notdevfile_class_set *;
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# Only system_server and shell (for dumpsys) can interact with iorapd over binder
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neverallow { domain -dumpstate -system_server -iorapd } iorapd_service:service_manager find;
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neverallow iorapd {
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domain
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-healthd
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-servicemanager
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-system_server
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userdebug_or_eng(`-su')
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}:binder call;
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neverallow { domain -init } iorapd:process { transition dyntransition };
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neverallow iorapd domain:{ tcp_socket udp_socket rawip_socket } *;
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