cb3eb4eef9
Replace the global debuggerd with a per-process debugging helper that gets exec'ed by the process that crashed. Bug: http://b/30705528 Test: crasher/crasher64, `debuggerd <pid>`, `kill -ABRT <pid>` Change-Id: Iad1b7478f7a4e2690720db4b066417d8b66834ed
50 lines
1.4 KiB
Plaintext
50 lines
1.4 KiB
Plaintext
# android user-space log manager
|
|
type logd, domain, mlstrustedsubject;
|
|
type logd_exec, exec_type, file_type;
|
|
|
|
# Read access to pseudo filesystems.
|
|
r_dir_file(logd, cgroup)
|
|
r_dir_file(logd, proc)
|
|
r_dir_file(logd, proc_meminfo)
|
|
r_dir_file(logd, proc_net)
|
|
|
|
allow logd self:capability { setuid setgid setpcap sys_nice audit_control };
|
|
allow logd self:capability2 syslog;
|
|
allow logd self:netlink_audit_socket { create_socket_perms_no_ioctl nlmsg_write };
|
|
allow logd kernel:system syslog_read;
|
|
allow logd kmsg_device:chr_file w_file_perms;
|
|
allow logd system_data_file:{ file lnk_file } r_file_perms;
|
|
|
|
# Access device logging gating property
|
|
get_prop(logd, device_logging_prop)
|
|
|
|
r_dir_file(logd, domain)
|
|
|
|
allow logd kernel:system syslog_mod;
|
|
|
|
control_logd(logd)
|
|
|
|
###
|
|
### Neverallow rules
|
|
###
|
|
### logd should NEVER do any of this
|
|
|
|
# Block device access.
|
|
neverallow logd dev_type:blk_file { read write };
|
|
|
|
# ptrace any other app
|
|
neverallow logd domain:process ptrace;
|
|
|
|
# ... and nobody may ptrace me (except on userdebug or eng builds)
|
|
neverallow { domain userdebug_or_eng(`-crash_dump') } logd:process ptrace;
|
|
|
|
# Write to /system.
|
|
neverallow logd system_file:dir_file_class_set write;
|
|
|
|
# Write to files in /data/data or system files on /data
|
|
neverallow logd { app_data_file system_data_file }:dir_file_class_set write;
|
|
|
|
# Only init is allowed to enter the logd domain via exec()
|
|
neverallow { domain -init } logd:process transition;
|
|
neverallow * logd:process dyntransition;
|