Add fabricated RRO generation to libidmap2
Fabricated Runtime Resource Overlays are overlays that are generated
at runtime and are stored in the data/ partition.
The system can fabricate RROs at runtime to dynamically theme the
device. Idmaps can now be created from APK RROs and fabricated RROs.
Rather than operating on ApkAssets, libidmap2 now operates on abstract
resource "containers" that supply resource values. Target resource
containers implement methods needed to query overlayable and target
overlay information. Currently only APKs can be loaded as target
resource containers. Overlay resource containers implement methods to
supply the mapping of target resource to overlay value and other
overlay information.
The format of a fabricated RRO is as follows:
0x00 - 0x04 : fabricated overlay magic (always FRRO)
0x04 - 0x08 : file format version
0x08 - 0x0c : crc of version + proto data
0x0c - EOF : proto fabricated overlay data
The magic is used to quickly detect if the file is a fabricated overlay.
The version is incremented whenever backwards incompatible changes are
made to the proto file format. Idmap must always be able to upgrade
fabricated overlays from previous versions to new versions, so all
previous versions must be checked into the tree.
Bug: 172471315
Test: libidmap2_tests && libandroidfw_tests
Change-Id: I4c9f29da278672e5695fb57d131a44c11a835180
diff --git a/cmds/idmap2/tests/RawPrintVisitorTests.cpp b/cmds/idmap2/tests/RawPrintVisitorTests.cpp
index 88f85ef..a6371cb 100644
--- a/cmds/idmap2/tests/RawPrintVisitorTests.cpp
+++ b/cmds/idmap2/tests/RawPrintVisitorTests.cpp
@@ -30,17 +30,16 @@
#include "idmap2/RawPrintVisitor.h"
using android::base::StringPrintf;
-using ::testing::NotNull;
using PolicyFlags = android::ResTable_overlayable_policy_header::PolicyFlags;
namespace android::idmap2 {
-#define ASSERT_CONTAINS_REGEX(pattern, str) \
- do { \
- ASSERT_TRUE(std::regex_search(str, std::regex(pattern))) \
- << "pattern '" << pattern << "' not found in\n--------\n" \
- << str << "--------"; \
+#define ASSERT_CONTAINS_REGEX(pattern, str) \
+ do { \
+ ASSERT_TRUE(std::regex_search(str, std::regex(pattern))) \
+ << "pattern '" << (pattern) << "' not found in\n--------\n" \
+ << (str) << "--------"; \
} while (0)
#define ADDRESS "[0-9a-f]{8}: "
@@ -49,16 +48,15 @@
fclose(stderr); // silence expected warnings
const std::string target_apk_path(GetTestDataPath() + "/target/target.apk");
- std::unique_ptr<const ApkAssets> target_apk = ApkAssets::Load(target_apk_path);
- ASSERT_THAT(target_apk, NotNull());
+ auto target = TargetResourceContainer::FromPath(target_apk_path);
+ ASSERT_TRUE(target);
const std::string overlay_apk_path(GetTestDataPath() + "/overlay/overlay.apk");
- std::unique_ptr<const ApkAssets> overlay_apk = ApkAssets::Load(overlay_apk_path);
- ASSERT_THAT(overlay_apk, NotNull());
+ auto overlay = OverlayResourceContainer::FromPath(overlay_apk_path);
+ ASSERT_TRUE(overlay);
- const auto idmap =
- Idmap::FromApkAssets(*target_apk, *overlay_apk, TestConstants::OVERLAY_NAME_DEFAULT,
- PolicyFlags::PUBLIC, /* enforce_overlayable */ true);
+ const auto idmap = Idmap::FromContainers(**target, **overlay, TestConstants::OVERLAY_NAME_DEFAULT,
+ PolicyFlags::PUBLIC, /* enforce_overlayable */ true);
ASSERT_TRUE(idmap);
std::stringstream stream;
@@ -66,7 +64,7 @@
(*idmap)->accept(&visitor);
ASSERT_CONTAINS_REGEX(ADDRESS "504d4449 magic\n", stream.str());
- ASSERT_CONTAINS_REGEX(ADDRESS "00000007 version\n", stream.str());
+ ASSERT_CONTAINS_REGEX(ADDRESS "00000008 version\n", stream.str());
ASSERT_CONTAINS_REGEX(
StringPrintf(ADDRESS "%s target crc\n", android::idmap2::TestConstants::TARGET_CRC_STRING),
stream.str());
@@ -75,8 +73,6 @@
stream.str());
ASSERT_CONTAINS_REGEX(ADDRESS "00000001 fulfilled policies: public\n", stream.str());
ASSERT_CONTAINS_REGEX(ADDRESS "00000001 enforce overlayable\n", stream.str());
- ASSERT_CONTAINS_REGEX(ADDRESS " 7f target package id\n", stream.str());
- ASSERT_CONTAINS_REGEX(ADDRESS " 7f overlay package id\n", stream.str());
ASSERT_CONTAINS_REGEX(ADDRESS "00000004 target entry count", stream.str());
ASSERT_CONTAINS_REGEX(ADDRESS "00000000 target inline entry count", stream.str());
ASSERT_CONTAINS_REGEX(ADDRESS "00000004 overlay entry count", stream.str());
@@ -104,7 +100,7 @@
TEST(RawPrintVisitorTests, CreateRawPrintVisitorWithoutAccessToApks) {
fclose(stderr); // silence expected warnings from libandroidfw
- std::string raw(reinterpret_cast<const char*>(idmap_raw_data), kIdmapRawDataLen);
+ std::string raw(reinterpret_cast<const char*>(kIdmapRawData), kIdmapRawDataLen);
std::istringstream raw_stream(raw);
const auto idmap = Idmap::FromBinaryStream(raw_stream);
@@ -115,7 +111,7 @@
(*idmap)->accept(&visitor);
ASSERT_CONTAINS_REGEX(ADDRESS "504d4449 magic\n", stream.str());
- ASSERT_CONTAINS_REGEX(ADDRESS "00000007 version\n", stream.str());
+ ASSERT_CONTAINS_REGEX(ADDRESS "00000008 version\n", stream.str());
ASSERT_CONTAINS_REGEX(ADDRESS "00001234 target crc\n", stream.str());
ASSERT_CONTAINS_REGEX(ADDRESS "00005678 overlay crc\n", stream.str());
ASSERT_CONTAINS_REGEX(ADDRESS "00000011 fulfilled policies: public|signature\n", stream.str());
@@ -126,8 +122,6 @@
ASSERT_CONTAINS_REGEX(ADDRESS "........ overlay path: overlayX.apk\n", stream.str());
ASSERT_CONTAINS_REGEX(ADDRESS "0000000b overlay name size\n", stream.str());
ASSERT_CONTAINS_REGEX(ADDRESS "........ overlay name: OverlayName\n", stream.str());
- ASSERT_CONTAINS_REGEX(ADDRESS " 7f target package id\n", stream.str());
- ASSERT_CONTAINS_REGEX(ADDRESS " 7f overlay package id\n", stream.str());
ASSERT_CONTAINS_REGEX(ADDRESS "00000003 target entry count\n", stream.str());
ASSERT_CONTAINS_REGEX(ADDRESS "00000001 target inline entry count\n", stream.str());
ASSERT_CONTAINS_REGEX(ADDRESS "00000003 overlay entry count\n", stream.str());
@@ -140,7 +134,7 @@
ASSERT_CONTAINS_REGEX(ADDRESS "7f020000 overlay id\n", stream.str());
ASSERT_CONTAINS_REGEX(ADDRESS "7f030002 target id\n", stream.str());
ASSERT_CONTAINS_REGEX(ADDRESS "00000004 string pool size\n", stream.str());
- ASSERT_CONTAINS_REGEX("000000a8: ........ string pool\n", stream.str());
+ ASSERT_CONTAINS_REGEX("000000a4: ........ string pool\n", stream.str());
}
} // namespace android::idmap2