commit d10d06d0b01151d6fcdf7ac70b5382e08858e233
author Mårten Kongstad <marten.kongstad@sony.com> Mon Jan 07 17:26:25 2019 -0800
committer Ryan Mitchell <rtmitchell@google.com> Wed Jan 16 11:47:24 2019 -0800
tree 40d35254623f0ca31593e020a15c8f79b64f7f28
parent f9d106211850390c6ff162ccd1467e6c3ffce219

Add enforcement of idmap policies

Teaches idmap2 to recognize policy restrictions put on overlayable
resources. If overlayable enforcement is turned on for an overlay, then
any resources defined within the overlayable api of the target will have
policy restrictions imposed on them. All resources without overlayable
definitions will continue to be overlayable without policy restrictions.

Bug: 119390857
Test: atest idmap2 and booting

Co-authored-by: Ryan Mitchell <rtmitchell@google.com>
Change-Id: I7e435648eb6e4a87b0b90a7b2a0c3f33c1516ea6

cmds/idmap2/tests/BinaryStreamVisitorTests.cpp

diff --git a/cmds/idmap2/tests/BinaryStreamVisitorTests.cpp b/cmds/idmap2/tests/BinaryStreamVisitorTests.cpp
index 2698ac0..35ec1ff 100644
--- a/cmds/idmap2/tests/BinaryStreamVisitorTests.cpp
+++ b/cmds/idmap2/tests/BinaryStreamVisitorTests.cpp
@@ -78,7 +78,8 @@
 
   std::stringstream error;
   std::unique_ptr<const Idmap> idmap =
-      Idmap::FromApkAssets(target_apk_path, *target_apk, overlay_apk_path, *overlay_apk, error);
+      Idmap::FromApkAssets(target_apk_path, *target_apk, overlay_apk_path, *overlay_apk,
+                           PolicyFlags::POLICY_PUBLIC, /* enforce_overlayable */ true, error);
   ASSERT_THAT(idmap, NotNull());
 
   std::stringstream stream;
@@ -101,25 +102,52 @@
   header = loaded_idmap->GetEntryMapForType(0x02);
   ASSERT_THAT(header, NotNull());
 
-  success = LoadedIdmap::Lookup(header, 0x0002, &entry);
+  success = LoadedIdmap::Lookup(header, 0x0000, &entry);  // string/a
   ASSERT_FALSE(success);
 
-  success = LoadedIdmap::Lookup(header, 0x0003, &entry);
+  success = LoadedIdmap::Lookup(header, 0x0001, &entry);  // string/b
+  ASSERT_FALSE(success);
+
+  success = LoadedIdmap::Lookup(header, 0x0002, &entry);  // string/c
+  ASSERT_FALSE(success);
+
+  success = LoadedIdmap::Lookup(header, 0x0003, &entry);  // string/not_overlayable
+  ASSERT_FALSE(success);
+
+  success = LoadedIdmap::Lookup(header, 0x0004, &entry);  // string/policy_product
+  ASSERT_FALSE(success);
+
+  success = LoadedIdmap::Lookup(header, 0x0005, &entry);  // string/policy_public
+  ASSERT_FALSE(success);
+
+  success = LoadedIdmap::Lookup(header, 0x0006, &entry);  // string/policy_system
+  ASSERT_FALSE(success);
+
+  success = LoadedIdmap::Lookup(header, 0x0007, &entry);  // string/policy_system_vendor
+  ASSERT_FALSE(success);
+
+  success = LoadedIdmap::Lookup(header, 0x0008, &entry);  // string/str1
   ASSERT_TRUE(success);
   ASSERT_EQ(entry, 0x0000);
 
-  success = LoadedIdmap::Lookup(header, 0x0004, &entry);
+  success = LoadedIdmap::Lookup(header, 0x0009, &entry);  // string/str2
   ASSERT_FALSE(success);
 
-  success = LoadedIdmap::Lookup(header, 0x0005, &entry);
+  success = LoadedIdmap::Lookup(header, 0x000a, &entry);  // string/str3
   ASSERT_TRUE(success);
   ASSERT_EQ(entry, 0x0001);
 
-  success = LoadedIdmap::Lookup(header, 0x0006, &entry);
+  success = LoadedIdmap::Lookup(header, 0x000b, &entry);  // string/str4
   ASSERT_TRUE(success);
   ASSERT_EQ(entry, 0x0002);
 
-  success = LoadedIdmap::Lookup(header, 0x0007, &entry);
+  success = LoadedIdmap::Lookup(header, 0x000c, &entry);  // string/x
+  ASSERT_FALSE(success);
+
+  success = LoadedIdmap::Lookup(header, 0x000d, &entry);  // string/y
+  ASSERT_FALSE(success);
+
+  success = LoadedIdmap::Lookup(header, 0x000e, &entry);  // string/z
   ASSERT_FALSE(success);
 }