| typeattribute logpersist coredomain; |
| |
| # android debug log storage in logpersist domains (eng and userdebug only) |
| userdebug_or_eng(` |
| |
| r_dir_file(logpersist, cgroup) |
| r_dir_file(logpersist, cgroup_v2) |
| |
| allow logpersist misc_logd_file:file create_file_perms; |
| allow logpersist misc_logd_file:dir rw_dir_perms; |
| |
| allow logpersist self:global_capability_class_set sys_nice; |
| allow logpersist pstorefs:dir search; |
| allow logpersist pstorefs:file r_file_perms; |
| |
| control_logd(logpersist) |
| unix_socket_connect(logpersist, logdr, logd) |
| get_prop(logpersist, logd_prop) |
| read_runtime_log_tags(logpersist) |
| |
| ') |
| |
| # logcatd is a shell script that execs logcat with various parameters. |
| allow logpersist shell_exec:file rx_file_perms; |
| allow logpersist logcat_exec:file rx_file_perms; |
| |
| allowxperm logpersist misc_logd_file:file ioctl { |
| F2FS_IOC_RELEASE_COMPRESS_BLOCKS |
| FS_IOC_SETFLAGS |
| }; |
| |
| ### |
| ### Neverallow rules |
| ### |
| ### logpersist should NEVER do any of this |
| |
| # Block device access. |
| neverallow logpersist dev_type:blk_file { read write }; |
| |
| # ptrace any other app |
| neverallow logpersist domain:process ptrace; |
| |
| # Write to files in /data/data or system files on /data except misc_logd_file |
| neverallow logpersist { app_data_file_type system_data_file }:dir_file_class_set write; |
| |
| # Only init should be allowed to enter the logpersist domain via exec() |
| # Following is a list of debug domains we know that transition to logpersist |
| # neverallow_with_undefined_domains { |
| # domain |
| # -init # goldfish, logcatd, raft |
| # -mmi # bat, mtp8996, msmcobalt |
| # -system_app # Smith.apk |
| # } logpersist:process transition; |
| neverallow * logpersist:process dyntransition; |
| |
| # logpersist is allowed to write to /data/misc/log for userdebug and eng builds |
| neverallow logpersist { |
| file_type |
| userdebug_or_eng(`-misc_logd_file -coredump_file') |
| with_native_coverage(`-method_trace_data_file') |
| }:file { create write append }; |
| neverallow { domain -init -dumpstate -incidentd userdebug_or_eng(`-logpersist -logd') } misc_logd_file:file no_rw_file_perms; |
| neverallow { domain -init userdebug_or_eng(`-logpersist -logd') } misc_logd_file:file no_w_file_perms; |
| neverallow { domain -init userdebug_or_eng(`-logpersist -logd') } misc_logd_file:dir { add_name link relabelfrom remove_name rename reparent rmdir write }; |