1# bpf program loader 2type bpfloader, domain; 3type bpfloader_exec, system_file_type, exec_type, file_type; 4typeattribute bpfloader coredomain; 5 6# These permission is required for pin bpf program for netd. 7allow bpfloader fs_bpf:dir create_dir_perms; 8allow bpfloader fs_bpf:file create_file_perms; 9allow bpfloader devpts:chr_file { read write }; 10 11# Allow bpfloader to create bpf maps and programs. The map_read and map_write permission is needed 12# for retrieving a pinned map when bpfloader do a run time restart. 13allow bpfloader self:bpf { prog_load prog_run map_read map_write map_create }; 14 15allow bpfloader self:global_capability_class_set sys_admin; 16 17### 18### Neverallow rules 19### 20neverallow { domain -bpfloader } *:bpf { map_create prog_load }; 21neverallow { domain -bpfloader -netd -netutils_wrapper } *:bpf prog_run; 22neverallow { domain -bpfloader -init } bpfloader_exec:file { execute execute_no_trans }; 23neverallow bpfloader domain:{ tcp_socket udp_socket rawip_socket } *; 24# only system_server, netd and bpfloader can read/write the bpf maps 25neverallow { domain -system_server -netd -bpfloader} *:bpf { map_read map_write }; 26 27# No domain should be allowed to ptrace bpfloader 28neverallow { domain userdebug_or_eng(`-llkd') } bpfloader:process ptrace; 29 30set_prop(bpfloader, bpf_progs_loaded_prop) 31