qva/vendor/common/fstman.te

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type vendor_fstman, domain;
type vendor_fstman_exec, exec_type, vendor_file_type, file_type;

init_daemon_domain(vendor_fstman)
net_domain(vendor_fstman)

#use bypass because net_admin capability is needed
hal_server_domain_bypass(vendor_fstman, vendor_hal_fstman)

#allows calls between client and server and vice-versa
binder_call(vendor_hal_fstman_client, vendor_hal_fstman_server)
binder_call(vendor_hal_fstman_server, vendor_hal_fstman_client)

#register hal service, allow hal clients to find the service
hal_attribute_hwservice(vendor_hal_fstman, vendor_hal_fstman_hwservice)

# fstman requires special network privileges.
# access traffic control (TC) for marking packets to identify from
# which slave interface they arrive, drop multicast packets and
# duplicate packets. This requires the net_raw capability.
# network admin operations mainly on the bonding driver:
# interface up/down, add/remove slave interfaces, set queue parameters
# This requires the net_admin capability.
allow vendor_fstman self:capability { net_admin net_raw };

# netlink socket is used to access traffic control (TC)
allow vendor_fstman self:netlink_route_socket nlmsg_write;

# allow privileged socket operations: interface up/down, bond interface management
allowxperm vendor_fstman self:udp_socket ioctl { SIOCGIFFLAGS SIOCSIFFLAGS SIOCSIFTXQLEN SIOCBONDENSLAVE SIOCBONDRELEASE SIOCETHTOOL SIOCSIFHWADDR };

# need access to bond0 sysfs in order to manage attached interfaces
allow vendor_fstman sysfs_net:dir r_dir_perms;
allow vendor_fstman vendor_sysfs_bond0:file rw_file_perms;

# need access to wigig sysfs in order to control fst_link_loss
allow vendor_fstman vendor_sysfs_wigig:file rw_file_perms;

# create/read vendor_fstman configuration file (/data/vendor/wifi/vendor_fstman.ini)
r_dir_file(vendor_fstman, vendor_wifi_vendor_data_file)
allow vendor_fstman vendor_wifi_vendor_data_file:dir rw_dir_perms;
allow vendor_fstman vendor_wifi_vendor_data_file:file create_file_perms;

# vendor_fstman needs to communicate with wpa_supplicant and hostapd using socket
# for managing FST state
allow vendor_fstman { hal_wifi_supplicant hal_wifi_hostapd_default }:unix_dgram_socket sendto;
# supplicant interface sockets
allow vendor_fstman vendor_wifi_vendor_wpa_socket:dir rw_dir_perms;
allow vendor_fstman vendor_wifi_vendor_wpa_socket:sock_file create_file_perms;
allow vendor_fstman vendor_wigig_vendor_wpa_socket:sock_file rw_file_perms;
# hostapd global socket
allow vendor_fstman hostapd_data_file:dir rw_dir_perms;
allow vendor_fstman hostapd_data_file:sock_file create_file_perms;
# access capability config store
hal_client_domain(vendor_fstman, vendor_hal_capabilityconfigstore_qti);