16c1ae3a3d
... to dedupe rules for allowing access to bootstrap bionic libraries. Bug: N/A Test: m Change-Id: I575487416a356c22f5f06f1713032f11d979d7d4
102 lines
3.5 KiB
Text
102 lines
3.5 KiB
Text
typeattribute apexd coredomain;
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init_daemon_domain(apexd)
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# allow apexd to create loop devices with /dev/loop-control
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allow apexd loop_control_device:chr_file rw_file_perms;
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# allow apexd to access loop devices
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allow apexd loop_device:blk_file rw_file_perms;
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allowxperm apexd loop_device:blk_file ioctl {
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LOOP_GET_STATUS64
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LOOP_SET_STATUS64
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LOOP_SET_FD
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LOOP_SET_BLOCK_SIZE
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LOOP_SET_DIRECT_IO
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LOOP_CLR_FD
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BLKFLSBUF
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LOOP_CONFIGURE
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};
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# Allow apexd to access /dev/block
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allow apexd dev_type:dir r_dir_perms;
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allow apexd dev_type:blk_file getattr;
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#allow apexd to access virtual disks
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allow apexd vd_device:blk_file r_file_perms;
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# allow apexd to access /dev/block/dm-* (device-mapper entries)
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allow apexd dm_device:chr_file rw_file_perms;
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allow apexd dm_device:blk_file rw_file_perms;
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# sys_admin is required to access the device-mapper and mount
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# dac_override, chown, and fowner are needed for snapshot and restore
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allow apexd self:global_capability_class_set { sys_admin chown dac_override dac_read_search fowner };
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# Note: fsetid is deliberately not included above. fsetid checks are
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# triggered by chmod on a directory or file owned by a group other
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# than one of the groups assigned to the current process to see if
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# the setgid bit should be cleared, regardless of whether the setgid
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# bit was even set. We do not appear to truly need this capability
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# for apexd to operate.
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dontaudit apexd self:global_capability_class_set fsetid;
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# allow apexd to create a mount point in /apex
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allow apexd apex_mnt_dir:dir create_dir_perms;
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# allow apexd to mount in /apex
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allow apexd apex_mnt_dir:filesystem { mount unmount };
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allow apexd apex_mnt_dir:dir mounton;
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# allow apexd to create symlinks in /apex
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allow apexd apex_mnt_dir:lnk_file create_file_perms;
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# allow apexd to create /apex/apex-info-list.xml and relabel to apex_info_file
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allow apexd apex_mnt_dir:file { create_file_perms relabelfrom mounton };
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allow apexd apex_info_file:file relabelto;
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# apexd needs to update /apex/apex-info-list.xml after non-staged APEX update.
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allow apexd apex_info_file:file rw_file_perms;
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# Unmount and mount filesystems
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allow apexd labeledfs:filesystem { mount unmount };
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# /sys directory tree traversal
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allow apexd sysfs_type:dir search;
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# Access to /sys/class/block
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allow apexd sysfs_type:dir r_dir_perms;
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allow apexd sysfs_type:file r_file_perms;
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# Configure read-ahead of dm-verity and loop devices
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# for dm-X
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allow apexd sysfs_dm:dir r_dir_perms;
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allow apexd sysfs_dm:file rw_file_perms;
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# for loopX
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allow apexd sysfs_loop:dir r_dir_perms;
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allow apexd sysfs_loop:file rw_file_perms;
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# Allow apexd to log to the kernel.
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allow apexd kmsg_device:chr_file w_file_perms;
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# Apex pre- & post-install permission.
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# Allow self-execute for the fork mount helper.
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allow apexd apexd_exec:file execute_no_trans;
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# Unshare and make / private so that hooks cannot influence the
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# running system.
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allow apexd rootfs:dir mounton;
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# apexd is using bootstrap bionic
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use_bootstrap_libs(apexd)
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# Allow apexd to read file contexts when performing restorecon
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allow apexd file_contexts_file:file r_file_perms;
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#-------------------------------------------
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allow apexd kmsg_device:chr_file w_file_perms;
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# apexd can set apexd sysprop
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set_prop(apexd, apexd_prop)
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# Allow apexd to stop itself
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set_prop(apexd, ctl_apexd_prop)
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# apexd uses it to decide whether it needs to keep retrying polling for loop device.
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get_prop(apexd, cold_boot_done_prop)
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# apexd uses this to determine where there metadata partition is.
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get_prop(apexd, apexd_payload_metadata_prop)
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