1# ueventd seclabel is specified in init.rc since
2# it lives in the rootfs and has no unique file type.
3type ueventd, domain, domain_deprecated;
4tmpfs_domain(ueventd)
5
6# TODO: why is ueventd using __kmsg__ when it should just create
7# and use /dev/kmsg instead?
8type_transition ueventd device:chr_file klog_device "__kmsg__";
9allow ueventd klog_device:chr_file { create open write unlink };
10
11security_access_policy(ueventd)
12allow ueventd init:process sigchld;
13allow ueventd self:capability { chown mknod net_admin setgid fsetid sys_rawio dac_override fowner };
14allow ueventd device:file create_file_perms;
15allow ueventd device:chr_file rw_file_perms;
16allow ueventd sysfs:file rw_file_perms;
17allow ueventd sysfs_usb:file w_file_perms;
18allow ueventd sysfs_hwrandom:file w_file_perms;
19allow ueventd sysfs_zram_uevent:file w_file_perms;
20allow ueventd sysfs_type:{ file lnk_file } { relabelfrom relabelto setattr getattr };
21allow ueventd sysfs_type:dir { relabelfrom relabelto setattr r_dir_perms };
22allow ueventd sysfs_devices_system_cpu:file rw_file_perms;
23allow ueventd tmpfs:chr_file rw_file_perms;
24allow ueventd dev_type:dir create_dir_perms;
25allow ueventd dev_type:lnk_file { create unlink };
26allow ueventd dev_type:chr_file { create setattr unlink };
27allow ueventd dev_type:blk_file { relabelfrom relabelto create setattr unlink };
28allow ueventd self:netlink_kobject_uevent_socket create_socket_perms;
29allow ueventd efs_file:dir search;
30allow ueventd efs_file:file r_file_perms;
31
32# Use setfscreatecon() to label /dev directories and files.
33allow ueventd self:process setfscreate;
34
35#####
36##### neverallow rules
37#####
38
39# ueventd must never set properties, otherwise deadlocks may occur.
40# https://android-review.googlesource.com/#/c/133120/6/init/devices.cpp@941
41# No writing to the property socket, connecting to init, or setting properties.
42neverallow ueventd property_socket:sock_file write;
43neverallow ueventd init:unix_stream_socket connectto;
44neverallow ueventd property_type:property_service set;
45