vold.te


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107

# volume manager
type vold, domain;
type vold_exec, exec_type, file_type;

init_daemon_domain(vold)

typeattribute vold mlstrustedsubject;
allow vold self:process setfscreate;
allow vold system_file:file x_file_perms;
allow vold block_device:dir create_dir_perms;
allow vold block_device:blk_file create_file_perms;
auditallow vold block_device:blk_file create_file_perms;
allow vold device:dir write;
allow vold devpts:chr_file rw_file_perms;
allow vold rootfs:dir mounton;
allow vold sdcard_type:dir mounton;
allow vold sdcard_type:filesystem { mount remount unmount };
allow vold sdcard_type:dir create_dir_perms;
allow vold sdcard_type:file create_file_perms;
allow vold tmpfs:filesystem { mount unmount };
allow vold tmpfs:dir create_dir_perms;
allow vold tmpfs:dir mounton;
allow vold self:capability { net_admin dac_override mknod sys_admin chown fowner fsetid };
allow vold self:netlink_kobject_uevent_socket create_socket_perms;
allow vold app_data_file:dir search;
allow vold app_data_file:file rw_file_perms;
allow vold loop_device:blk_file create_file_perms;
allow vold vold_device:blk_file create_file_perms;
allow vold dm_device:chr_file rw_file_perms;
allow vold dm_device:blk_file rw_file_perms;
# For vold Process::killProcessesWithOpenFiles function.
allow vold domain:dir r_dir_perms;
allow vold domain:{ file lnk_file } r_file_perms;
allow vold domain:process { signal sigkill };
allow vold self:capability { sys_ptrace kill };

# For blkid
allow vold shell_exec:file rx_file_perms;

# XXX Label sysfs files with a specific type?
allow vold sysfs:file rw_file_perms;

write_klog(vold)

# Run fsck.
allow vold fsck_exec:file rx_file_perms;

# Log fsck results
allow vold fscklogs:dir rw_dir_perms;
allow vold fscklogs:file create_file_perms;

#
# Rules to support encrypted fs support.
#

# Set property.
unix_socket_connect(vold, property, init)

# Unmount and mount the fs.
allow vold labeledfs:filesystem { mount unmount remount };

# Access /efs/userdata_footer.
# XXX Split into a separate type?
allow vold efs_file:file rw_file_perms;

# Create and mount on /data/tmp_mnt.
allow vold system_data_file:dir { create rw_dir_perms mounton };

# Set scheduling policy of kernel processes
allow vold kernel:process setsched;

# Property Service
allow vold vold_prop:property_service set;
allow vold powerctl_prop:property_service set;
allow vold ctl_fuse_prop:property_service set;

# ASEC
allow vold asec_image_file:file create_file_perms;
allow vold asec_image_file:dir rw_dir_perms;
security_access_policy(vold)
allow vold asec_apk_file:dir { rw_dir_perms setattr relabelfrom relabelto };
allow vold asec_public_file:dir { relabelto setattr };
allow vold asec_apk_file:file { r_file_perms setattr relabelfrom relabelto };
allow vold asec_public_file:file { relabelto setattr };
# restorecon files in asec containers created on 4.2 or earlier.
allow vold unlabeled:dir { r_dir_perms setattr relabelfrom };
allow vold unlabeled:file { r_file_perms setattr relabelfrom };

# Handle wake locks (used for device encryption)
wakelock_use(vold)

# talk to batteryservice
binder_use(vold)
binder_call(vold, healthd)

# talk to keymaster
allow vold tee_device:chr_file rw_file_perms;

# Access userdata block device.
allow vold userdata_block_device:blk_file rw_file_perms;

# Access metadata block device used for encryption meta-data.
allow vold metadata_block_device:blk_file rw_file_perms;

# Allow init to manipulate /data/unencrypted
allow vold unencrypted_data_file:{ file lnk_file } create_file_perms;
allow vold unencrypted_data_file:dir create_dir_perms;