| # ueventd seclabel is specified in init.rc since |
| # it lives in the rootfs and has no unique file type. |
| type ueventd, domain, domain_deprecated; |
| tmpfs_domain(ueventd) |
| |
| # TODO: why is ueventd using __kmsg__ when it should just create |
| # and use /dev/kmsg instead? |
| type_transition ueventd device:chr_file klog_device "__kmsg__"; |
| allow ueventd klog_device:chr_file { create open write unlink }; |
| |
| security_access_policy(ueventd) |
| allow ueventd init:process sigchld; |
| allow ueventd self:capability { chown mknod net_admin setgid fsetid sys_rawio dac_override fowner }; |
| allow ueventd device:file create_file_perms; |
| allow ueventd device:chr_file rw_file_perms; |
| allow ueventd sysfs:file rw_file_perms; |
| allow ueventd sysfs_type:{ file lnk_file } { relabelfrom relabelto setattr getattr }; |
| allow ueventd sysfs_type:dir { relabelfrom relabelto setattr r_dir_perms }; |
| allow ueventd sysfs_devices_system_cpu:file rw_file_perms; |
| allow ueventd tmpfs:chr_file rw_file_perms; |
| allow ueventd dev_type:dir create_dir_perms; |
| allow ueventd dev_type:lnk_file { create unlink }; |
| allow ueventd dev_type:chr_file { create setattr unlink }; |
| allow ueventd dev_type:blk_file { create setattr unlink }; |
| allow ueventd self:netlink_kobject_uevent_socket create_socket_perms; |
| allow ueventd efs_file:dir search; |
| allow ueventd efs_file:file r_file_perms; |
| |
| # Use setfscreatecon() to label /dev directories and files. |
| allow ueventd self:process setfscreate; |
| |
| ##### |
| ##### neverallow rules |
| ##### |
| |
| # ueventd must never set properties, otherwise deadlocks may occur. |
| # https://android-review.googlesource.com/#/c/133120/6/init/devices.cpp@941 |
| # No writing to the property socket, connecting to init, or setting properties. |
| neverallow ueventd property_socket:sock_file write; |
| neverallow ueventd init:unix_stream_socket connectto; |
| neverallow ueventd property_type:property_service set; |