platform_system_sepolicy/private/hal_wifi_supplicant.te
Inseob Kim 75806ef3c5 Minimize public policy
Ideally, public should only contain APIs (types / attributes) for
vendor. The other statements like allow/neverallow/typeattributes are
regarded as implementation detail for platform and should be in private.

Bug: 232023812
Test: m selinux_policy
Test: diff <(git diff --staged | grep "^-" | cut -b2- | sort) \
           <(git diff --staged | grep "^+" | cut -b2- | sort)
Test: remove comments on plat_sepolicy.cil, replace base_typeattr_*
      to base_typeattr and then compare old and new plat_sepolicy.cil
Change-Id: I5e7d2da4465ab0216de6bacdf03077d37f6ffe12
2024-03-28 00:33:46 +00:00

38 lines
1.6 KiB
Text

# HwBinder IPC from client to server
binder_call(hal_wifi_supplicant_client, hal_wifi_supplicant_server)
binder_call(hal_wifi_supplicant_server, hal_wifi_supplicant_client)
hal_attribute_hwservice(hal_wifi_supplicant, hal_wifi_supplicant_hwservice)
hal_attribute_service(hal_wifi_supplicant, hal_wifi_supplicant_service)
# in addition to ioctls allowlisted for all domains, grant hal_wifi_supplicant priv_sock_ioctls.
allowxperm hal_wifi_supplicant self:udp_socket ioctl priv_sock_ioctls;
r_dir_file(hal_wifi_supplicant, sysfs_type)
r_dir_file(hal_wifi_supplicant, proc_net_type)
allow hal_wifi_supplicant self:global_capability_class_set { setuid net_admin setgid net_raw };
allow hal_wifi_supplicant cgroup:dir create_dir_perms;
allow hal_wifi_supplicant cgroup_v2:dir create_dir_perms;
allow hal_wifi_supplicant self:netlink_route_socket nlmsg_write;
allow hal_wifi_supplicant self:netlink_socket create_socket_perms_no_ioctl;
allow hal_wifi_supplicant self:netlink_generic_socket create_socket_perms_no_ioctl;
allow hal_wifi_supplicant self:packet_socket create_socket_perms;
allowxperm hal_wifi_supplicant self:packet_socket ioctl { unpriv_sock_ioctls priv_sock_ioctls unpriv_tty_ioctls };
use_keystore(hal_wifi_supplicant)
binder_use(hal_wifi_supplicant_server)
# Allow the WI-FI HAL to use keys in the keystore namespace wifi_key.
allow hal_wifi_supplicant wifi_key:keystore2_key {
get_info
use
};
###
### neverallow rules
###
# wpa_supplicant should not trust any data from sdcards
neverallow hal_wifi_supplicant_server { sdcard_type fuse }:dir ~getattr;
neverallow hal_wifi_supplicant_server { sdcard_type fuse }:file *;