platform_system_sepolicy/runas.te
Nick Kralevich 6c9c58884a runas: allow pipe communication from the shell
run-as won't communicate with shell via pipes. Allow it.

  nnk@nnk:~$ adb shell "cat /dev/zero | run-as com.google.foo sh -c 'cat'"
  /system/bin/sh: cat: <stdout>: Broken pipe

  <4>[ 1485.483517] type=1400 audit(1402623577.085:25): avc: denied { read } for pid=6026 comm="run-as" path="pipe:[29823]" dev="pipefs" ino=29823 scontext=u:r:runas:s0 tcontext=u:r:shell:s0 tclass=fifo_file

read is definitely needed. Not sure about write, but adding it just
in case.

Change-Id: Ifdf838b0df79a5f1e9559af57c2d1fdb8c41a201
2014-06-12 18:54:10 -07:00

26 lines
913 B
Text

type runas, domain, mlstrustedsubject;
type runas_exec, exec_type, file_type;
# ndk-gdb invokes adb shell run-as.
domain_auto_trans(shell, runas_exec, runas)
allow runas adbd:process sigchld;
allow runas shell:fd use;
allow runas shell:fifo_file { read write };
allow runas devpts:chr_file { read write ioctl };
# run-as reads package information.
allow runas system_data_file:file r_file_perms;
# run-as checks and changes to the app data dir.
dontaudit runas self:capability dac_override;
allow runas app_data_file:dir { getattr search };
# run-as switches to the app UID/GID.
allow runas self:capability { setuid setgid };
# run-as switches to the app security context.
# read /seapp_contexts and /data/security/seapp_contexts
security_access_policy(runas)
selinux_check_context(runas) # validate context
allow runas self:process setcurrent;
allow runas non_system_app_set:process dyntransition; # setcon