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      1 # android user-space log manager
      2 type logd, domain, mlstrustedsubject;
      3 type logd_exec, exec_type, file_type;
      4 
      5 init_daemon_domain(logd)
      6 
      7 allow logd self:capability { setuid setgid sys_nice audit_control };
      8 allow logd self:capability2 syslog;
      9 allow logd self:netlink_audit_socket { create_socket_perms nlmsg_write };
     10 allow logd kernel:system syslog_read;
     11 allow logd kmsg_device:chr_file w_file_perms;
     12 allow logd system_data_file:file r_file_perms;
     13 allow logd misc_logd_file:file create_file_perms;
     14 allow logd misc_logd_file:dir rw_dir_perms;
     15 allow logd pstorefs:dir search;
     16 allow logd pstorefs:file r_file_perms;
     17 
     18 r_dir_file(logd, domain)
     19 
     20 allow logd kernel:system syslog_mod;
     21 
     22 control_logd(logd)
     23 
     24 # case where logpersistd is actually logcat -f in logd context (nee: logcatd)
     25 userdebug_or_eng(`
     26   unix_socket_connect(logd, logdr, logd)
     27 ')
     28 
     29 ###
     30 ### Neverallow rules
     31 ###
     32 ### logd should NEVER do any of this
     33 
     34 # Block device access.
     35 neverallow logd dev_type:blk_file { read write };
     36 
     37 # ptrace any other app
     38 neverallow logd domain:process ptrace;
     39 
     40 # Write to /system.
     41 neverallow logd system_file:dir_file_class_set write;
     42 
     43 # Write to files in /data/data or system files on /data
     44 neverallow logd { app_data_file system_data_file }:dir_file_class_set write;
     45