Merge "Add more mounting options to updater mount function." am: ac1ae4fd2e am: 609b8b5360
Change-Id: I2db5982534f2437cf9cc9d4fe711c035479ac5e0
diff --git a/Android.bp b/Android.bp
index 4032bcc..e7e1938 100644
--- a/Android.bp
+++ b/Android.bp
@@ -72,6 +72,7 @@
],
static_libs: [
+ "libc++fs",
"libinstall",
"librecovery_fastboot",
"libminui",
@@ -94,6 +95,7 @@
],
shared_libs: [
+ "libfusesideload",
"librecovery_ui",
],
}
diff --git a/install/include/install/install.h b/install/include/install/install.h
index 87d43ab..bef23e9 100644
--- a/install/include/install/install.h
+++ b/install/include/install/install.h
@@ -63,3 +63,7 @@
// pre-device and serial number (if presents). A/B OTA specific checks: pre-build version,
// fingerprint, timestamp.
bool CheckPackageMetadata(const std::map<std::string, std::string>& metadata, OtaType ota_type);
+
+// Ensures the path to the update package is mounted. Also set the |should_use_fuse| to true if the
+// package stays on a removable media.
+bool SetupPackageMount(const std::string& package_path, bool* should_use_fuse);
diff --git a/install/install.cpp b/install/install.cpp
index 4bb0903..1c9bf2f 100644
--- a/install/install.cpp
+++ b/install/install.cpp
@@ -30,6 +30,7 @@
#include <atomic>
#include <chrono>
#include <condition_variable>
+#include <filesystem>
#include <functional>
#include <limits>
#include <mutex>
@@ -641,3 +642,49 @@
}
return true;
}
+
+bool SetupPackageMount(const std::string& package_path, bool* should_use_fuse) {
+ CHECK(should_use_fuse != nullptr);
+
+ if (package_path.empty()) {
+ return false;
+ }
+
+ *should_use_fuse = true;
+ if (package_path[0] == '@') {
+ auto block_map_path = package_path.substr(1);
+ if (ensure_path_mounted(block_map_path) != 0) {
+ LOG(ERROR) << "Failed to mount " << block_map_path;
+ return false;
+ }
+ // uncrypt only produces block map only if the package stays on /data.
+ *should_use_fuse = false;
+ return true;
+ }
+
+ // Package is not a block map file.
+ if (ensure_path_mounted(package_path) != 0) {
+ LOG(ERROR) << "Failed to mount " << package_path;
+ return false;
+ }
+
+ // Reject the package if the input path doesn't equal the canonicalized path.
+ // e.g. /cache/../sdcard/update_package.
+ std::error_code ec;
+ auto canonical_path = std::filesystem::canonical(package_path, ec);
+ if (ec) {
+ LOG(ERROR) << "Failed to get canonical of " << package_path << ", " << ec.message();
+ return false;
+ }
+ if (canonical_path.string() != package_path) {
+ LOG(ERROR) << "Installation aborts. The canonical path " << canonical_path.string()
+ << " doesn't equal the original path " << package_path;
+ return false;
+ }
+
+ constexpr const char* CACHE_ROOT = "/cache";
+ if (android::base::StartsWith(package_path, CACHE_ROOT)) {
+ *should_use_fuse = false;
+ }
+ return true;
+}
diff --git a/recovery.cpp b/recovery.cpp
index b1f106b..b022027 100644
--- a/recovery.cpp
+++ b/recovery.cpp
@@ -752,7 +752,11 @@
ensure_path_mounted(update_package);
}
- if (install_with_fuse) {
+ bool should_use_fuse = false;
+ if (!SetupPackageMount(update_package, &should_use_fuse)) {
+ LOG(INFO) << "Failed to set up the package access, skipping installation";
+ status = INSTALL_ERROR;
+ } else if (install_with_fuse || should_use_fuse) {
LOG(INFO) << "Installing package " << update_package << " with fuse";
status = InstallWithFuseFromPath(update_package, ui);
} else if (auto memory_package = Package::CreateMemoryPackage(
diff --git a/tests/Android.bp b/tests/Android.bp
index 3d22390..a9a088a 100644
--- a/tests/Android.bp
+++ b/tests/Android.bp
@@ -92,6 +92,7 @@
"libhidlbase",
"liblp",
"libtinyxml2",
+ "libc++fs",
]
// recovery image for unittests.
diff --git a/tests/unit/install_test.cpp b/tests/unit/install_test.cpp
index 370fbdc..ee75349 100644
--- a/tests/unit/install_test.cpp
+++ b/tests/unit/install_test.cpp
@@ -35,6 +35,7 @@
#include "install/wipe_device.h"
#include "otautil/paths.h"
#include "private/setup_commands.h"
+#include "recovery_utils/roots.h"
static void BuildZipArchive(const std::map<std::string, std::string>& file_map, int fd,
int compression_type) {
@@ -513,3 +514,30 @@
"\n");
TestCheckPackageMetadata(metadata, OtaType::AB, true);
}
+
+TEST(InstallTest, SetupPackageMount_package_path) {
+ load_volume_table();
+ bool install_with_fuse;
+
+ // Setup should fail if the input path doesn't exist.
+ ASSERT_FALSE(SetupPackageMount("/does_not_exist", &install_with_fuse));
+
+ // Package should be installed with fuse if it's not in /cache.
+ TemporaryDir temp_dir;
+ TemporaryFile update_package(temp_dir.path);
+ ASSERT_TRUE(SetupPackageMount(update_package.path, &install_with_fuse));
+ ASSERT_TRUE(install_with_fuse);
+
+ // Setup should fail if the input path isn't canonicalized.
+ std::string uncanonical_package_path = android::base::Join(
+ std::vector<std::string>{
+ temp_dir.path,
+ "..",
+ android::base::Basename(temp_dir.path),
+ android::base::Basename(update_package.path),
+ },
+ '/');
+
+ ASSERT_EQ(0, access(uncanonical_package_path.c_str(), R_OK));
+ ASSERT_FALSE(SetupPackageMount(uncanonical_package_path, &install_with_fuse));
+}