| # bpf program loader |
| type bpfloader, domain; |
| type bpfloader_exec, system_file_type, exec_type, file_type; |
| typeattribute bpfloader coredomain; |
| |
| # These permission is required for pin bpf program for netd. |
| allow bpfloader fs_bpf:dir create_dir_perms; |
| allow bpfloader fs_bpf:file create_file_perms; |
| allow bpfloader devpts:chr_file { read write }; |
| |
| # Allow bpfloader to create bpf maps and programs. The map_read and map_write permission is needed |
| # for retrieving a pinned map when bpfloader do a run time restart. |
| allow bpfloader self:bpf { prog_load prog_run map_read map_write map_create }; |
| |
| allow bpfloader self:global_capability_class_set sys_admin; |
| |
| ### |
| ### Neverallow rules |
| ### |
| neverallow { domain -bpfloader } *:bpf { map_create prog_load }; |
| neverallow { domain -bpfloader -netd -netutils_wrapper } *:bpf prog_run; |
| neverallow { domain -bpfloader -init } bpfloader_exec:file { execute execute_no_trans }; |
| neverallow bpfloader domain:{ tcp_socket udp_socket rawip_socket } *; |
| # only system_server, netd and bpfloader can read/write the bpf maps |
| neverallow { domain -system_server -netd -bpfloader} *:bpf { map_read map_write }; |
| |
| # No domain should be allowed to ptrace bpfloader |
| neverallow { domain userdebug_or_eng(`-llkd') } bpfloader:process ptrace; |
| |
| set_prop(bpfloader, bpf_progs_loaded_prop) |
