platform_system_sepolicy/private/network_stack.te
Maciej Żenczykowski 5a7e49e525 Allow network_stack to synchronize the kernel rcu
via opening/closing a PF_KEY socket (this mirrors netd's privs)

Bug: 173167302
Test: m
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ia2c2cb52c4ec9149db29dc86a7927e3432bd2b9b
2020-12-08 14:49:20 +00:00

46 lines
1.9 KiB
Text

# Networking service app
typeattribute network_stack coredomain, mlstrustedsubject;
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);
# Create/use netlink_tcpdiag_socket to get tcp info
allow network_stack self:netlink_tcpdiag_socket { create_socket_perms_no_ioctl nlmsg_read nlmsg_write };
############### Tethering Service app - Tethering.apk ##############
hal_client_domain(network_stack, hal_tetheroffload)
# Create and share netlink_netfilter_sockets for tetheroffload.
allow network_stack self:netlink_netfilter_socket create_socket_perms_no_ioctl;
allow network_stack network_stack_service:service_manager find;
# allow Tethering(network_stack process) to run/update/read the eBPF maps to offload tethering traffic by eBPF.
allow network_stack fs_bpf:dir search;
allow network_stack fs_bpf:file { read write };
allow network_stack bpfloader:bpf { map_read map_write prog_run };
# in order to invoke side effect of close() on such a socket calling synchronize_rcu()
# TODO: Remove this permission when 4.9 kernel is deprecated.
allow network_stack self:key_socket create;