1*e4a36f41SAndroid Build Coastguard Worker# bpf program loader 2*e4a36f41SAndroid Build Coastguard Workertype bpfloader, domain; 3*e4a36f41SAndroid Build Coastguard Workertype bpfloader_exec, system_file_type, exec_type, file_type; 4*e4a36f41SAndroid Build Coastguard Workertypeattribute bpfloader coredomain; 5*e4a36f41SAndroid Build Coastguard Worker 6*e4a36f41SAndroid Build Coastguard Worker# These permissions are required to pin ebpf maps & programs. 7*e4a36f41SAndroid Build Coastguard Workerallow bpfloader fs_bpf:dir { search write add_name }; 8*e4a36f41SAndroid Build Coastguard Workerallow bpfloader fs_bpf:file { create setattr read }; 9*e4a36f41SAndroid Build Coastguard Worker 10*e4a36f41SAndroid Build Coastguard Worker# Allow bpfloader to create bpf maps and programs. 11*e4a36f41SAndroid Build Coastguard Workerallow bpfloader self:bpf { map_create map_read map_write prog_load prog_run }; 12*e4a36f41SAndroid Build Coastguard Worker 13*e4a36f41SAndroid Build Coastguard Workerallow bpfloader self:capability { chown sys_admin }; 14*e4a36f41SAndroid Build Coastguard Worker 15*e4a36f41SAndroid Build Coastguard Worker### 16*e4a36f41SAndroid Build Coastguard Worker### Neverallow rules 17*e4a36f41SAndroid Build Coastguard Worker### 18*e4a36f41SAndroid Build Coastguard Worker 19*e4a36f41SAndroid Build Coastguard Worker# TODO: get rid of init & vendor_init 20*e4a36f41SAndroid Build Coastguard Workerneverallow { domain -init -vendor_init } fs_bpf:dir setattr; 21*e4a36f41SAndroid Build Coastguard Workerneverallow { domain -bpfloader } fs_bpf:dir { write add_name }; 22*e4a36f41SAndroid Build Coastguard Workerneverallow domain fs_bpf:dir { reparent rename rmdir }; 23*e4a36f41SAndroid Build Coastguard Worker 24*e4a36f41SAndroid Build Coastguard Worker# TODO: get rid of init & vendor_init 25*e4a36f41SAndroid Build Coastguard Workerneverallow { domain -bpfloader -init -vendor_init } fs_bpf:file setattr; 26*e4a36f41SAndroid Build Coastguard Workerneverallow { domain -bpfloader } fs_bpf:file create; 27*e4a36f41SAndroid Build Coastguard Workerneverallow domain fs_bpf:file { rename unlink }; 28*e4a36f41SAndroid Build Coastguard Worker 29*e4a36f41SAndroid Build Coastguard Workerneverallow { domain -bpfloader } *:bpf { map_create prog_load }; 30*e4a36f41SAndroid Build Coastguard Workerneverallow { domain -bpfloader -netd -netutils_wrapper -system_server } *:bpf prog_run; 31*e4a36f41SAndroid Build Coastguard Workerneverallow { domain -bpfloader -netd -system_server } *:bpf { map_read map_write }; 32*e4a36f41SAndroid Build Coastguard Worker 33*e4a36f41SAndroid Build Coastguard Workerneverallow { domain -bpfloader -init } bpfloader_exec:file { execute execute_no_trans }; 34*e4a36f41SAndroid Build Coastguard Worker 35*e4a36f41SAndroid Build Coastguard Workerneverallow bpfloader domain:{ tcp_socket udp_socket rawip_socket } *; 36*e4a36f41SAndroid Build Coastguard Worker 37*e4a36f41SAndroid Build Coastguard Worker# No domain should be allowed to ptrace bpfloader 38*e4a36f41SAndroid Build Coastguard Workerneverallow { domain userdebug_or_eng(`-llkd') } bpfloader:process ptrace; 39*e4a36f41SAndroid Build Coastguard Worker 40*e4a36f41SAndroid Build Coastguard Workerset_prop(bpfloader, bpf_progs_loaded_prop) 41