platform_system_sepolicy/public/wificond.te
Roshan Pius 3aa1c1725e sepolicy: Permission changes for new wifi mainline module
Move wifi services out of system_server into a separate APK/process.

Changes:
a) Created sepolicy for the new wifi apk.
b) The new APK will run with network_stack uid (eventually will be moved
to the same process).

Used 'audit2allow' tool to gather list of permissions required.

Note: The existing wifi related permissions in system_server is left
behind to allow the module to be loaded into system_server or
network_stack process depending on device configuration.

Bug: 113174748
Test: Device boots up and able to make wifi connection.
Test: Tested hotspot functionality.
Test: Ran WifiManagerTest & WifiSoftApTest ACTS tests locally.
Test: Will send for wifi regression tests.
Change-Id: Id19643a235bf0c28238f2729926b893ac2025b97
(cherry-picked from c7aa90091e6bec70a31a643cc4519a9a86fb0b38)
2019-07-16 13:30:15 -07:00

32 lines
1.1 KiB
Text

# wificond
type wificond, domain;
type wificond_exec, system_file_type, exec_type, file_type;
binder_use(wificond)
binder_call(wificond, system_server)
binder_call(wificond, wifi_stack)
add_service(wificond, wificond_service)
set_prop(wificond, exported_wifi_prop)
set_prop(wificond, wifi_prop)
set_prop(wificond, ctl_default_prop)
# create sockets to set interfaces up and down
allow wificond self:udp_socket create_socket_perms;
# setting interface state up/down is a privileged ioctl
allowxperm wificond self:udp_socket ioctl { SIOCSIFFLAGS SIOCSIFHWADDR };
allow wificond self:global_capability_class_set { net_admin net_raw };
# allow wificond to speak to nl80211 in the kernel
allow wificond self:netlink_socket create_socket_perms_no_ioctl;
# newer kernels (e.g. 4.4 but not 4.1) have a new class for sockets
allow wificond self:netlink_generic_socket create_socket_perms_no_ioctl;
r_dir_file(wificond, proc_net_type)
# allow wificond to check permission for dumping logs
allow wificond permission_service:service_manager find;
# dumpstate support
allow wificond dumpstate:fd use;
allow wificond dumpstate:fifo_file write;