118 lines
4.8 KiB
Text
118 lines
4.8 KiB
Text
# installer daemon
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type installd, domain, domain_deprecated;
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type installd_exec, exec_type, file_type;
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typeattribute installd mlstrustedsubject;
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allow installd self:capability { chown dac_override fowner fsetid setgid setuid };
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# Allow labeling of files under /data/app/com.example/oat/
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allow installd dalvikcache_data_file:dir relabelto;
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allow installd dalvikcache_data_file:file { relabelto link };
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# Allow movement of APK files between volumes
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allow installd apk_data_file:dir { create_dir_perms relabelfrom };
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allow installd apk_data_file:file { create_file_perms relabelfrom link };
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allow installd apk_data_file:lnk_file { create r_file_perms unlink };
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allow installd asec_apk_file:file r_file_perms;
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allow installd apk_tmp_file:file { r_file_perms unlink };
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allow installd apk_tmp_file:dir { relabelfrom create_dir_perms };
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allow installd oemfs:dir r_dir_perms;
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allow installd oemfs:file r_file_perms;
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allow installd cgroup:dir create_dir_perms;
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allow installd cgroup:{ file lnk_file } create_file_perms;
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allow installd mnt_expand_file:dir { search getattr };
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# Check validity of SELinux context before use.
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selinux_check_context(installd)
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r_dir_file(installd, rootfs)
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# Search /data/app-asec and stat files in it.
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allow installd asec_image_file:dir search;
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allow installd asec_image_file:file getattr;
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# Create /data/user and /data/user/0 if necessary.
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# Also required to initially create /data/data subdirectories
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# and lib symlinks before the setfilecon call. May want to
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# move symlink creation after setfilecon in installd.
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allow installd system_data_file:dir create_dir_perms;
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allow installd system_data_file:lnk_file { create setattr unlink };
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# Upgrade /data/media for multi-user if necessary.
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allow installd media_rw_data_file:dir create_dir_perms;
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allow installd media_rw_data_file:file { getattr unlink };
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# restorecon new /data/media directory.
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allow installd system_data_file:dir relabelfrom;
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allow installd media_rw_data_file:dir relabelto;
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# Upgrade /data/misc/keychain for multi-user if necessary.
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allow installd misc_user_data_file:dir create_dir_perms;
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allow installd misc_user_data_file:file create_file_perms;
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allow installd keychain_data_file:dir create_dir_perms;
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allow installd keychain_data_file:file {r_file_perms unlink};
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# Create /data/.layout_version.* file
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type_transition installd system_data_file:file install_data_file;
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allow installd install_data_file:file create_file_perms;
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# Create files under /data/dalvik-cache.
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allow installd dalvikcache_data_file:dir create_dir_perms;
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allow installd dalvikcache_data_file:file create_file_perms;
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# Create files under /data/resource-cache.
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allow installd resourcecache_data_file:dir rw_dir_perms;
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allow installd resourcecache_data_file:file create_file_perms;
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# Upgrade from unlabeled userdata.
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# Just need enough to remove and/or relabel it.
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allow installd unlabeled:dir { getattr search relabelfrom rw_dir_perms rmdir };
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allow installd unlabeled:notdevfile_class_set { getattr relabelfrom rename unlink setattr };
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# Read pkg.apk file for input during dexopt.
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allow installd unlabeled:file r_file_perms;
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# Upgrade from before system_app_data_file was used for system UID apps.
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# Just need enough to relabel it and to unlink removed package files.
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# Directory access covered by earlier rule above.
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allow installd system_data_file:notdevfile_class_set { getattr relabelfrom unlink };
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# Manage /data/data subdirectories, including initially labeling them
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# upon creation via setfilecon or running restorecon_recursive,
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# setting owner/mode, creating symlinks within them, and deleting them
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# upon package uninstall.
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# Types extracted from seapp_contexts type= fields.
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allow installd {
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system_app_data_file
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bluetooth_data_file
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nfc_data_file
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radio_data_file
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shell_data_file
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app_data_file
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ephemeral_data_file
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}:dir { create_dir_perms relabelfrom relabelto };
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allow installd {
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system_app_data_file
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bluetooth_data_file
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nfc_data_file
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radio_data_file
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shell_data_file
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app_data_file
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ephemeral_data_file
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}:notdevfile_class_set { create_file_perms relabelfrom relabelto };
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# Similar for the files under /data/misc/profiles/
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allow installd user_profile_data_file:dir create_dir_perms;
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allow installd user_profile_data_file:file create_file_perms;
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allow installd user_profile_data_file:dir rmdir;
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allow installd user_profile_data_file:file unlink;
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allow installd user_profile_foreign_dex_data_file:dir { add_name getattr rmdir open read write search remove_name };
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allow installd user_profile_foreign_dex_data_file:file { getattr rename unlink };
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# Files created/updated by profman dumps.
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allow installd profman_dump_data_file:dir { search add_name write };
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allow installd profman_dump_data_file:file { create setattr open write };
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# Create and use pty created by android_fork_execvp().
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allow installd devpts:chr_file rw_file_perms;
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# execute toybox for app relocation
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allow installd toolbox_exec:file rx_file_perms;
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