platform_system_sepolicy/private/netutils_wrapper.te
Maciej Żenczykowski 52c8a2ebd5 netd/netutils_wrapper/network_stack/system_server - allow getattr on bpf progs/maps
This is so that we can potentially verify that things
are setup right.

Test: TreeHugger
Bug: 275209284
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I59a49cbece2710345fff0b2fb98e32f4e5f3af44
2023-03-28 03:11:42 +00:00

47 lines
1.9 KiB
Text

typeattribute netutils_wrapper coredomain;
typeattribute netutils_wrapper bpfdomain;
r_dir_file(netutils_wrapper, system_file);
# For netutils (ip, iptables, tc)
allow netutils_wrapper self:global_capability_class_set net_raw;
allow netutils_wrapper system_file:file { execute execute_no_trans };
allow netutils_wrapper proc_net_type:file { open read getattr };
allow netutils_wrapper self:rawip_socket create_socket_perms;
allow netutils_wrapper self:udp_socket create_socket_perms;
allow netutils_wrapper self:global_capability_class_set net_admin;
# ip utils need everything but ioctl
allow netutils_wrapper self:netlink_route_socket ~ioctl;
allow netutils_wrapper self:netlink_xfrm_socket ~ioctl;
# For netutils (ndc) to be able to talk to netd
allow netutils_wrapper netd_service:service_manager find;
allow netutils_wrapper dnsresolver_service:service_manager find;
allow netutils_wrapper mdns_service:service_manager find;
binder_use(netutils_wrapper);
binder_call(netutils_wrapper, netd);
# For vendor code that update the iptables rules at runtime. They need to reload
# the whole chain including the xt_bpf rules. They need to access to the pinned
# program when reloading the rule.
allow netutils_wrapper { fs_bpf fs_bpf_netd_shared }:dir search;
allow netutils_wrapper { fs_bpf fs_bpf_netd_shared }:file { getattr read };
allow netutils_wrapper { fs_bpf }:file write;
allow netutils_wrapper bpfloader:bpf prog_run;
# For /data/misc/net access to ndc and ip
r_dir_file(netutils_wrapper, net_data_file)
domain_auto_trans({
domain
-coredomain
-appdomain
}, netutils_wrapper_exec, netutils_wrapper)
# suppress spurious denials
dontaudit netutils_wrapper self:global_capability_class_set sys_resource;
dontaudit netutils_wrapper sysfs_type:file read;
# netutils wrapper may only use the following capabilities.
neverallow netutils_wrapper self:global_capability_class_set ~{ net_admin net_raw };