558c1b8de5
To work around a kernel bug where pages that are read before changing the loop device offset are not invalidated correctly. Bug: 120853401 Test: apexd mounts APEX files on gphone_sdk_x86_64 Change-Id: I89f23f8f9d472e599f053553b73cc0618dcb3747
64 lines
2.2 KiB
Text
64 lines
2.2 KiB
Text
typeattribute apexd coredomain;
|
|
|
|
init_daemon_domain(apexd)
|
|
|
|
# Read /system/etc/security/apex_debug_key
|
|
allow apexd apex_key_file:dir { search getattr };
|
|
allow apexd apex_key_file:file r_file_perms;
|
|
|
|
# Allow reading and writing of APEX files in the APEX data dir
|
|
allow apexd apex_data_file:dir rw_dir_perms;
|
|
allow apexd apex_data_file:file rw_file_perms;
|
|
|
|
# allow apexd to create loop devices with /dev/loop-control
|
|
allow apexd loop_control_device:chr_file rw_file_perms;
|
|
# allow apexd to access loop devices
|
|
allow apexd loop_device:blk_file rw_file_perms;
|
|
allowxperm apexd loop_device:blk_file ioctl {
|
|
LOOP_GET_STATUS64
|
|
LOOP_SET_STATUS64
|
|
LOOP_SET_FD
|
|
LOOP_SET_BLOCK_SIZE
|
|
LOOP_SET_DIRECT_IO
|
|
LOOP_CLR_FD
|
|
BLKFLSBUF
|
|
};
|
|
# allow apexd to access /dev/block
|
|
allow apexd block_device:dir r_dir_perms;
|
|
|
|
# allow apexd to access /dev/block/dm-* (device-mapper entries)
|
|
allow apexd dm_device:chr_file rw_file_perms;
|
|
allow apexd dm_device:blk_file rw_file_perms;
|
|
|
|
# sys_admin is required to access the device-mapper and mount
|
|
allow apexd self:global_capability_class_set sys_admin;
|
|
|
|
# allow apexd to create a mount point in /apex
|
|
allow apexd apex_mnt_dir:dir create_dir_perms;
|
|
# allow apexd to mount in /apex
|
|
allow apexd apex_mnt_dir:filesystem { mount unmount };
|
|
allow apexd apex_mnt_dir:dir mounton;
|
|
# allow apexd to create symlinks in /apex
|
|
allow apexd apex_mnt_dir:lnk_file create_file_perms;
|
|
|
|
# allow apexd to relabel apk_tmp_file to apex_data_file.
|
|
# TODO(b/112669193) remove this when APEXes are staged via file descriptor
|
|
allow apexd apk_tmp_file:file relabelfrom;
|
|
allow apexd apex_data_file:file relabelto;
|
|
|
|
# Unmount and mount filesystems
|
|
allow apexd labeledfs:filesystem { mount unmount };
|
|
|
|
# Configure read-ahead of dm-verity devices
|
|
allow apexd sysfs_dm:dir r_dir_perms;
|
|
allow apexd sysfs_dm:file rw_file_perms;
|
|
|
|
# Spawning a libbinder thread results in a dac_override deny,
|
|
# /dev/cpuset/tasks is owned by system.
|
|
#
|
|
# See b/35323867#comment3
|
|
dontaudit apexd self:global_capability_class_set { dac_override dac_read_search };
|
|
|
|
neverallow { domain -apexd -init } apex_data_file:dir no_w_dir_perms;
|
|
neverallow { domain -apexd -init -kernel } apex_data_file:file no_rw_file_perms;
|
|
neverallow { domain -apexd } apex_mnt_dir:lnk_file no_w_file_perms;
|