3753c816b2
When encrypting a device, vold tries to acquire a wake lock,
to prevent the device from sleeping. Add an allow rule.
After booting with a freshly encrypted device, fsck logs data to
/dev/fscklogs/log . Add an allow rule.
Addresses the following denials.
wake lock:
<5>[ 372.401015] type=1400 audit(1387488823.195:6): avc: denied { read write } for pid=143 comm="vold" name="wake_lock" dev="sysfs" ino=69 scontext=u:r:vold:s0 tcontext=u:object_r:sysfs_wake_lock:s0 tclass=file
<5>[ 127.274556] type=1400 audit(1387494536.080:8): avc: denied { open } for pid=140 comm="vold" name="wake_lock" dev="sysfs" ino=69 scontext=u:r:vold:s0 tcontext=u:object_r:sysfs_wake_lock:s0 tclass=file
fsck logging:
<5>[ 44.759122] type=1400 audit(1387489522.460:6): avc: denied { search } for pid=132 comm="vold" name="fscklogs" dev="tmpfs" ino=3216 scontext=u:r:vold:s0 tcontext=u:object_r:fscklogs:s0 tclass=dir
<5>[ 28.559964] type=1400 audit(1387495221.265:6): avc: denied { write } for pid=132 comm="vold" name="fscklogs" dev="tmpfs" ino=3216 scontext=u:r:vold:s0 tcontext=u:object_r:fscklogs:s0 tclass=dir
<5>[ 28.560081] type=1400 audit(1387495221.265:7): avc: denied { add_name } for pid=132 comm="vold" name="log" scontext=u:r:vold:s0 tcontext=u:object_r:fscklogs:s0 tclass=dir
<5>[ 28.560244] type=1400 audit(1387495221.265:8): avc: denied { create } for pid=132 comm="vold" name="log" scontext=u:r:vold:s0 tcontext=u:object_r:fscklogs:s0 tclass=file
<5>[ 28.560383] type=1400 audit(1387495221.265:9): avc: denied { write open } for pid=132 comm="vold" name="log" dev="tmpfs" ino=5898 scontext=u:r:vold:s0 tcontext=u:object_r:fscklogs:s0 tclass=file
<5>[ 28.582520] type=1400 audit(1387495221.285:10): avc: denied { getattr } for pid=132 comm="vold" path="/dev/fscklogs/log" dev="tmpfs" ino=5898 scontext=u:r:vold:s0 tcontext=u:object_r:fscklogs:s0 tclass=file
Change-Id: I09fbe73c9d4955578c16fece4f3b84269eed78b5
80 lines
2.5 KiB
Plaintext
80 lines
2.5 KiB
Plaintext
# volume manager
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type vold, domain;
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type vold_exec, exec_type, file_type;
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init_daemon_domain(vold)
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typeattribute vold mlstrustedsubject;
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allow vold system_file:file x_file_perms;
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allow vold block_device:dir create_dir_perms;
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allow vold block_device:blk_file create_file_perms;
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allow vold device:dir write;
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allow vold devpts:chr_file rw_file_perms;
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allow vold rootfs:dir mounton;
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allow vold sdcard_type:dir mounton;
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allow vold sdcard_type:filesystem { mount remount unmount };
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allow vold sdcard_type:dir create_dir_perms;
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allow vold sdcard_type:file create_file_perms;
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allow vold tmpfs:filesystem { mount unmount };
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allow vold tmpfs:dir create_dir_perms;
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allow vold tmpfs:dir mounton;
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allow vold self:capability { net_admin dac_override mknod sys_admin chown fowner fsetid };
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allow vold self:netlink_kobject_uevent_socket *;
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allow vold app_data_file:dir search;
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allow vold app_data_file:file rw_file_perms;
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allow vold loop_device:blk_file rw_file_perms;
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allow vold dm_device:chr_file rw_file_perms;
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# For vold Process::killProcessesWithOpenFiles function.
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allow vold domain:dir r_dir_perms;
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allow vold domain:{ file lnk_file } r_file_perms;
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allow vold domain:process { signal sigkill };
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allow vold self:capability { sys_ptrace kill };
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# For blkid
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allow vold shell_exec:file rx_file_perms;
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# XXX Label sysfs files with a specific type?
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allow vold sysfs:file rw_file_perms;
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write_klog(vold)
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# Log fsck results
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allow vold fscklogs:dir rw_dir_perms;
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allow vold fscklogs:file create_file_perms;
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#
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# Rules to support encrypted fs support.
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#
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# Set property.
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unix_socket_connect(vold, property, init)
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# Unmount and mount the fs.
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allow vold labeledfs:filesystem { mount unmount remount };
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# Access /efs/userdata_footer.
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# XXX Split into a separate type?
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allow vold efs_file:file rw_file_perms;
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# Create and mount on /data/tmp_mnt.
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allow vold system_data_file:dir { create rw_dir_perms mounton };
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# Set scheduling policy of kernel processes
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allow vold kernel:process setsched;
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# Property Service
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allow vold vold_prop:property_service set;
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allow vold powerctl_prop:property_service set;
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allow vold ctl_default_prop:property_service set;
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# ASEC
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allow vold asec_image_file:file create_file_perms;
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allow vold asec_image_file:dir rw_dir_perms;
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security_access_policy(vold)
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allow vold asec_apk_file:dir { rw_dir_perms setattr };
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allow vold asec_apk_file:file { r_file_perms setattr };
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# Handle wake locks (used for device encryption)
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allow vold sysfs_wake_lock:file rw_file_perms;
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allow vold self:capability2 block_suspend;
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