platform_system_sepolicy/private/art_apex_boot_integrity.te
Andreas Gampe 59d5d90da8 Sepolicy: Allow everyone to search keyrings
Allow everyone to look for keys in the fsverity keyring. This is
required to access fsverity-protected files, at all.

This set of permissions is analogous to allowances for the fscrypt
keyring and keys.

Bug: 125474642
Test: m
Test: manual
Change-Id: I6e8c13272cdd76d9940d950e9dabecdb210691b1
2019-03-14 13:21:07 -07:00

28 lines
1.2 KiB
Text

# This command set checks the integrity of boot classpath ART
# artifacts in /data, potentially removing them.
type art_apex_boot_integrity, domain, coredomain;
type art_apex_boot_integrity_exec, system_file_type, exec_type, file_type;
# Technically not a daemon but we do want the transition from init domain to
# art_apex_boot_integrity to occur.
init_daemon_domain(art_apex_boot_integrity)
# Read dalvik cache directories, remove entries.
allow art_apex_boot_integrity dalvikcache_data_file:dir { r_dir_perms write remove_name };
# Read and possibly delete dalvik cache files.
allow art_apex_boot_integrity dalvikcache_data_file:file { r_file_perms unlink };
# Allow art_apex_boot_integrity to execute itself using #!/system/bin/sh
allow art_apex_boot_integrity shell_exec:file rx_file_perms;
# Allow running the mv and rm/rmdir commands using art_apex_boot_integrity
# permissions.
allow art_apex_boot_integrity toolbox_exec:file rx_file_perms;
# Fsverity in the same domain.
allow art_apex_boot_integrity system_file:file execute_no_trans;
# Fsverity work.
allowxperm art_apex_boot_integrity dalvikcache_data_file:file ioctl {
FS_IOC_ENABLE_VERITY FS_IOC_MEASURE_VERITY
};