android_system_sepolicy/private/network_stack.te
Xiao Ma c06f0f602a Allow the netowrk stack to access its own data files.
After moving IpMemoryStore service to network stack module(aosp/906907),
the following untracked SELinux denials are observed on boot.

W id.networkstack: type=1400 audit(0.0:63): avc: denied { write } for
name="com.android.networkstack" dev="sda13" ino=704810
scontext=u:r:network_stack:s0:c49,c260,c512,c768
tcontext=u:object_r:system_data_file:s0 tclass=dir permissive=0

Add radio_data_file type for network stack user configuration and
relevant permission to allow access to its data, as the network stack
is a privileged app.

Test: m -j passed
Change-Id: I6eab528714df6a17aae0cb546dcc3ad4bb21deea
2019-03-19 11:42:11 +09:00

31 lines
956 B
Plaintext

# Networking service app
typeattribute network_stack coredomain;
app_domain(network_stack);
net_domain(network_stack);
allow network_stack self:global_capability_class_set {
net_admin
net_bind_service
net_broadcast
net_raw
};
# Allow access to net_admin ioctl, DHCP server uses SIOCSARP
allowxperm network_stack self:udp_socket ioctl priv_sock_ioctls;
# The DhcpClient uses packet_sockets
allow network_stack self:packet_socket create_socket_perms_no_ioctl;
# Monitor neighbors via netlink.
allow network_stack self:netlink_route_socket nlmsg_write;
allow network_stack app_api_service:service_manager find;
allow network_stack dnsresolver_service:service_manager find;
allow network_stack netd_service:service_manager find;
allow network_stack radio_service:service_manager find;
allow network_stack radio_data_file:dir create_dir_perms;
allow network_stack radio_data_file:file create_file_perms;
binder_call(network_stack, netd);