applypatch: Add backup_source parameter to PatchPartition.
And set it to false when installing recovery image via applypatch. We
only need to back up the source partition when doing in-place update
(e.g. when updating a given partition under recovery). When installing
recovery image via applypatch, we won't touch the source partition (i.e.
/boot).
Removing the backup step also allows dropping the dac_override_allowed
permission. Previously it was needed due to the access to /cache.
Because applypatch runs as root:root, while /cache is owned by
system:cache with 0770.
Bug: 68319577
Test: Invoke the code that installs recovery image; check that recovery
is installed successfully without denials.
Test: recovery_unit_test passes on taimen.
Change-Id: I549a770b511762189d6672a2835b6e403d695919
diff --git a/tests/unit/applypatch_test.cpp b/tests/unit/applypatch_test.cpp
index 794f2c1..218a224 100644
--- a/tests/unit/applypatch_test.cpp
+++ b/tests/unit/applypatch_test.cpp
@@ -141,7 +141,7 @@
ASSERT_TRUE(LoadFileContents(from_testdata_base("bonus.file"), &bonus_fc));
Value bonus(Value::Type::BLOB, std::string(bonus_fc.data.cbegin(), bonus_fc.data.cend()));
- ASSERT_TRUE(PatchPartition(target_partition, source_partition, patch, &bonus));
+ ASSERT_TRUE(PatchPartition(target_partition, source_partition, patch, &bonus, false));
}
// Tests patching an eMMC target without a separate bonus file (i.e. recovery-from-boot patch has
@@ -151,7 +151,7 @@
ASSERT_TRUE(LoadFileContents(from_testdata_base("recovery-from-boot-with-bonus.p"), &patch_fc));
Value patch(Value::Type::BLOB, std::string(patch_fc.data.cbegin(), patch_fc.data.cend()));
- ASSERT_TRUE(PatchPartition(target_partition, source_partition, patch, nullptr));
+ ASSERT_TRUE(PatchPartition(target_partition, source_partition, patch, nullptr, false));
}
class FreeCacheTest : public ::testing::Test {