1typeattribute logpersist coredomain; 2 3# android debug log storage in logpersist domains (eng and userdebug only) 4userdebug_or_eng(` 5 6 r_dir_file(logpersist, cgroup) 7 r_dir_file(logpersist, cgroup_v2) 8 9 allow logpersist misc_logd_file:file create_file_perms; 10 allow logpersist misc_logd_file:dir rw_dir_perms; 11 12 allow logpersist self:global_capability_class_set sys_nice; 13 allow logpersist pstorefs:dir search; 14 allow logpersist pstorefs:file r_file_perms; 15 16 control_logd(logpersist) 17 unix_socket_connect(logpersist, logdr, logd) 18 get_prop(logpersist, logd_prop) 19 read_runtime_log_tags(logpersist) 20 21') 22 23# logcatd is a shell script that execs logcat with various parameters. 24allow logpersist shell_exec:file rx_file_perms; 25allow logpersist logcat_exec:file rx_file_perms; 26 27allowxperm logpersist misc_logd_file:file ioctl { 28 F2FS_IOC_RELEASE_COMPRESS_BLOCKS 29 FS_IOC_SETFLAGS 30}; 31 32### 33### Neverallow rules 34### 35### logpersist should NEVER do any of this 36 37# Block device access. 38neverallow logpersist dev_type:blk_file { read write }; 39 40# ptrace any other app 41neverallow logpersist domain:process ptrace; 42 43# Write to files in /data/data or system files on /data except misc_logd_file 44neverallow logpersist { app_data_file_type system_data_file }:dir_file_class_set write; 45 46# Only init should be allowed to enter the logpersist domain via exec() 47# Following is a list of debug domains we know that transition to logpersist 48# neverallow_with_undefined_domains { 49# domain 50# -init # goldfish, logcatd, raft 51# -mmi # bat, mtp8996, msmcobalt 52# -system_app # Smith.apk 53# } logpersist:process transition; 54neverallow * logpersist:process dyntransition; 55 56# logpersist is allowed to write to /data/misc/log for userdebug and eng builds 57neverallow logpersist { 58 file_type 59 userdebug_or_eng(`-misc_logd_file -coredump_file') 60 with_native_coverage(`-method_trace_data_file') 61}:file { create write append }; 62neverallow { domain -init -dumpstate -incidentd userdebug_or_eng(`-logpersist -logd') } misc_logd_file:file no_rw_file_perms; 63neverallow { domain -init userdebug_or_eng(`-logpersist -logd') } misc_logd_file:file no_w_file_perms; 64neverallow { domain -init userdebug_or_eng(`-logpersist -logd') } misc_logd_file:dir { add_name link relabelfrom remove_name rename reparent rmdir write }; 65