android_system_sepolicy/private/netutils_wrapper.te
Luke Huang 2cdbd3a38c Sepolicy for netutils_wrapper to use binder call
Bug: 65862741
Test: built, flashed, booted

Merged-In: I346520c47b74fde5137ad7c777f0a9eca50a06d7
(cherry picked from commit 554b334d7b)

Change-Id: I0a03b88369bd2eca6593d252c4dff3ce7745b6cc
2019-04-26 02:46:39 +00:00

45 lines
1.7 KiB
Plaintext

typeattribute netutils_wrapper coredomain;
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;
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:dir search;
allow netutils_wrapper fs_bpf:file { read 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 };