platform_system_sepolicy/vendor/hal_can_socketcan.te

type hal_can_socketcan, domain;
hal_server_domain(hal_can_socketcan, hal_can_controller)
hal_server_domain(hal_can_socketcan, hal_can_bus)

type hal_can_socketcan_exec, exec_type, vendor_file_type, file_type;
init_daemon_domain(hal_can_socketcan)

# Managing SocketCAN interfaces
allow hal_can_socketcan self:capability net_admin;
allow hal_can_socketcan self:netlink_route_socket { create bind write nlmsg_write read };

# See man page for netdevice(7) for more info on ioctls
allow hal_can_socketcan self:udp_socket { create ioctl };
allowxperm hal_can_socketcan self:udp_socket ioctl {
    SIOCGIFINDEX
    SIOCGIFFLAGS
    SIOCSIFFLAGS
};

# Communicating with SocketCAN interfaces and bringing them up/down
allow hal_can_socketcan self:can_socket { bind create read write ioctl setopt };
allowxperm hal_can_socketcan self:can_socket ioctl {
    SIOCGIFFLAGS
    SIOCSIFFLAGS
};

# Un-publishing ICanBus interfaces
allow hal_can_socketcan hidl_manager_hwservice:hwservice_manager find;

allow hal_can_socketcan sysfs:dir r_dir_perms;

allow hal_can_socketcan usb_serial_device:chr_file { ioctl read write open };
allowxperm hal_can_socketcan usb_serial_device:chr_file ioctl {
    TCGETS
    TCSETSW
    TIOCGSERIAL
    TIOCSSERIAL
    TIOCSETD
    SIOCGIFNAME
};