Initial selinux policy support for memfd
Move all app tmpfs types to appdomain_tmpfs. These are still protected
by mls categories and DAC. TODO clean up other app tmpfs types in a
separate change.
Treble-ize tmpfs passing between graphics composer HAL and
surfaceflinger.
Bug: 122854450
Test: boot Blueline with memfd enabled.
Change-Id: Ib98aaba062f10972af6ae80fb85b7a0f60a32eee
diff --git a/private/mls b/private/mls
index 421b046..9690440 100644
--- a/private/mls
+++ b/private/mls
@@ -57,14 +57,14 @@
mlsconstrain dir { open search setattr rename add_name remove_name reparent rmdir }
( (t2 != app_data_file and t2 != privapp_data_file ) or l1 dom l2 or t1 == mlstrustedsubject);
mlsconstrain { file sock_file } { open setattr unlink link rename }
- ( (t2 != app_data_file and t2 != privapp_data_file and t2 != priv_app_tmpfs) or l1 dom l2 or t1 == mlstrustedsubject);
+ ( (t2 != app_data_file and t2 != privapp_data_file and t2 != appdomain_tmpfs) or l1 dom l2 or t1 == mlstrustedsubject);
# For symlinks in app_data_file, require equivalence in order to manipulate or follow (read).
mlsconstrain { lnk_file } { open setattr unlink link rename read }
( (t2 != app_data_file) or l1 eq l2 or t1 == mlstrustedsubject);
# For priv_app_data_file, continue to use dominance for symlinks because dynamite relies on this.
# TODO: Migrate to equivalence when it's no longer needed.
mlsconstrain { lnk_file } { open setattr unlink link rename read }
- ( (t2 != privapp_data_file and t2 != priv_app_tmpfs) or l1 dom l2 or t1 == mlstrustedsubject);
+ ( (t2 != privapp_data_file and t2 != appdomain_tmpfs) or l1 dom l2 or t1 == mlstrustedsubject);
#
# Constraints for file types other than app data files.
@@ -76,7 +76,7 @@
(t2 == app_data_file or t2 == privapp_data_file or l1 dom l2 or t1 == mlstrustedsubject or t2 == mlstrustedobject);
mlsconstrain { file lnk_file sock_file chr_file blk_file } { read getattr execute }
- (t2 == app_data_file or t2 == privapp_data_file or t2 == priv_app_tmpfs or l1 dom l2 or t1 == mlstrustedsubject or t2 == mlstrustedobject);
+ (t2 == app_data_file or t2 == privapp_data_file or t2 == appdomain_tmpfs or l1 dom l2 or t1 == mlstrustedsubject or t2 == mlstrustedobject);
# Write operations: Subject must be equivalent to the object unless the
# subject or the object is trusted.
@@ -84,7 +84,7 @@
(t2 == app_data_file or t2 == privapp_data_file or l1 eq l2 or t1 == mlstrustedsubject or t2 == mlstrustedobject);
mlsconstrain { file lnk_file sock_file chr_file blk_file } { write setattr append unlink link rename }
- (t2 == app_data_file or t2 == privapp_data_file or t2 == priv_app_tmpfs or l1 eq l2 or t1 == mlstrustedsubject or t2 == mlstrustedobject);
+ (t2 == app_data_file or t2 == privapp_data_file or t2 == appdomain_tmpfs or l1 eq l2 or t1 == mlstrustedsubject or t2 == mlstrustedobject);
# Special case for FIFOs.
# These can be unnamed pipes, in which case they will be labeled with the