platform_system_sepolicy/public/net.te

## Network types
type node, node_type;
type netif, netif_type;
type port, port_type;

###
### Domain with network access
###

# Use network sockets.
allow netdomain self:tcp_socket create_stream_socket_perms;
allow netdomain self:{ icmp_socket udp_socket rawip_socket } create_socket_perms;

# Connect to ports.
allow netdomain port_type:tcp_socket name_connect;
# See changes to the routing table.
allow netdomain self:netlink_route_socket { create read getattr write setattr lock append connect getopt setopt shutdown nlmsg_read };

# Talks to netd via dnsproxyd socket.
unix_socket_connect(netdomain, dnsproxyd, netd)

# Talks to netd via fwmarkd socket.
unix_socket_connect(netdomain, fwmarkd, netd)