1# ueventd seclabel is specified in init.rc since 2# it lives in the rootfs and has no unique file type. 3type ueventd, domain; 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_type:{ file lnk_file } { relabelfrom relabelto setattr getattr }; 18allow ueventd sysfs_type:dir { relabelfrom relabelto setattr r_dir_perms }; 19allow ueventd sysfs_devices_system_cpu:file rw_file_perms; 20allow ueventd tmpfs:chr_file rw_file_perms; 21allow ueventd dev_type:dir create_dir_perms; 22allow ueventd dev_type:lnk_file { create unlink }; 23allow ueventd dev_type:chr_file { create setattr unlink }; 24allow ueventd dev_type:blk_file { create setattr unlink }; 25allow ueventd self:netlink_kobject_uevent_socket create_socket_perms; 26allow ueventd efs_file:dir search; 27allow ueventd efs_file:file r_file_perms; 28 29# Use setfscreatecon() to label /dev directories and files. 30allow ueventd self:process setfscreate; 31 32##### 33##### neverallow rules 34##### 35 36# ueventd must never set properties, otherwise deadlocks may occur. 37# https://android-review.googlesource.com/#/c/133120/6/init/devices.cpp@941 38# No writing to the property socket, connecting to init, or setting properties. 39neverallow ueventd property_socket:sock_file write; 40neverallow ueventd init:unix_stream_socket connectto; 41neverallow ueventd property_type:property_service set; 42