platform_system_sepolicy/runas.te
Nick Kralevich 8e553a415f runas: don't allow capabilities other than setuid/setgid
Add a compile time assertion that capabilities other than setuid
and setgid are never granted to run-as.

This is a compile time assertion only. No new capabilities are granted
or removed.

Change-Id: Ie86d651b539cdfb6f3eaafef0d5d3b716610a220
2015-03-25 17:42:37 -07:00

35 lines
1.1 KiB
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 };
allow runas shell_data_file:file { read write };
# 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
###
### neverallow rules
###
# run-as cannot have capabilities other than CAP_SETUID and CAP_SETGID
neverallow runas self:capability ~{ setuid setgid };
neverallow runas self:capability2 *;