From 170ad599540dfeee252ebf53cbedd610c2d22a5f Mon Sep 17 00:00:00 2001
From: Kelvin Zhang <zhangkelvin@google.com>
Date: Tue, 14 Mar 2023 15:02:53 -0700
Subject: [PATCH] Allow brick OTA package to be sideloaded in recovery

Makes testing easier, brick packaegs can now be tested directly in
recovery w/o having to go through GOTA.

Test: adb sideload brick_ota.zip
Bug: 273561331
Change-Id: I48214dc03e63b69e61fc217bc3f58923bb90a9a6
---
 install/include/install/wipe_device.h |  1 +
 install/install.cpp                   | 18 +++++++++++++++++-
 install/wipe_device.cpp               |  8 ++++++--
 3 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/install/include/install/wipe_device.h b/install/include/install/wipe_device.h
index 903ddfdc..19e7c65b 100644
--- a/install/include/install/wipe_device.h
+++ b/install/include/install/wipe_device.h
@@ -24,6 +24,7 @@
 
 // Wipes the current A/B device, with a secure wipe of all the partitions in RECOVERY_WIPE.
 bool WipeAbDevice(Device* device, size_t wipe_package_size);
+bool WipeAbDevice(Device* device, Package* wipe_package);
 
 // Reads the "recovery.wipe" entry in the zip archive returns a list of partitions to wipe.
 std::vector<std::string> GetWipePartitionList(Package* wipe_package);
diff --git a/install/install.cpp b/install/install.cpp
index 30ba94c2..a9786cfd 100644
--- a/install/install.cpp
+++ b/install/install.cpp
@@ -48,6 +48,7 @@
 
 #include "install/spl_check.h"
 #include "install/wipe_data.h"
+#include "install/wipe_device.h"
 #include "otautil/error_code.h"
 #include "otautil/package.h"
 #include "otautil/paths.h"
@@ -71,6 +72,8 @@ static constexpr float VERIFICATION_PROGRESS_FRACTION = 0.25;
 // The charater used to separate dynamic fingerprints. e.x. sargo|aosp-sargo
 static const char* FINGERPRING_SEPARATOR = "|";
 static constexpr auto&& RELEASE_KEYS_TAG = "release-keys";
+// If brick packages are smaller than |MEMORY_PACKAGE_LIMIT|, read the entire package into memory
+static constexpr size_t MEMORY_PACKAGE_LIMIT = 1024 * 1024;
 
 static std::condition_variable finish_log_temperature;
 static bool isInStringList(const std::string& target_token, const std::string& str_list,
@@ -382,7 +385,20 @@ static InstallResult TryUpdateBinary(Package* package, bool* wipe_cache,
     return INSTALL_CORRUPT;
   }
 
-  bool package_is_ab = get_value(metadata, "ota-type") == OtaTypeToString(OtaType::AB);
+  const bool package_is_ab = get_value(metadata, "ota-type") == OtaTypeToString(OtaType::AB);
+  const bool package_is_brick = get_value(metadata, "ota-type") == OtaTypeToString(OtaType::BRICK);
+  if (package_is_brick) {
+    LOG(INFO) << "Installing a brick package";
+    if (package->GetType() == PackageType::kFile &&
+        package->GetPackageSize() < MEMORY_PACKAGE_LIMIT) {
+      std::vector<uint8_t> content(package->GetPackageSize());
+      if (package->ReadFullyAtOffset(content.data(), content.size(), 0)) {
+        auto memory_package = Package::CreateMemoryPackage(std::move(content), {});
+        return WipeAbDevice(device, memory_package.get()) ? INSTALL_SUCCESS : INSTALL_ERROR;
+      }
+    }
+    return WipeAbDevice(device, package) ? INSTALL_SUCCESS : INSTALL_ERROR;
+  }
   bool device_supports_ab = android::base::GetBoolProperty("ro.build.ab_update", false);
   bool ab_device_supports_nonab =
       android::base::GetBoolProperty("ro.virtual_ab.allow_non_ab", false);
diff --git a/install/wipe_device.cpp b/install/wipe_device.cpp
index 0a525fa9..2656580f 100644
--- a/install/wipe_device.cpp
+++ b/install/wipe_device.cpp
@@ -182,13 +182,17 @@ bool WipeAbDevice(Device* device, size_t wipe_package_size) {
     LOG(ERROR) << "Failed to open wipe package";
     return false;
   }
+  return WipeAbDevice(device, wipe_package.get());
+}
 
-  if (!CheckWipePackage(wipe_package.get(), ui)) {
+bool WipeAbDevice(Device* device, Package* wipe_package) {
+  auto ui = device->GetUI();
+  if (!CheckWipePackage(wipe_package, ui)) {
     LOG(ERROR) << "Failed to verify wipe package";
     return false;
   }
 
-  auto partition_list = GetWipePartitionList(wipe_package.get());
+  auto partition_list = GetWipePartitionList(wipe_package);
   if (partition_list.empty()) {
     LOG(ERROR) << "Empty wipe ab partition list";
     return false;