Abort the update if there's not enough new data
Right now the update stuck in a deadlock if there's less new data than
expection. Add some checkers and abort the update if such case happens.
Also add a corresponding test.
Bug: 36787146
Test: update aborts correctly on bullhead && recovery_component_test passes
Change-Id: I914e4a2a4cf157b99ef2fc65bd21c6981e38ca47
diff --git a/tests/component/updater_test.cpp b/tests/component/updater_test.cpp
index 5652ddf..dc4b5d7 100644
--- a/tests/component/updater_test.cpp
+++ b/tests/component/updater_test.cpp
@@ -607,3 +607,69 @@
ASSERT_EQ(0, fclose(updater_info.cmd_pipe));
CloseArchive(handle);
}
+
+TEST_F(UpdaterTest, new_data_short_write) {
+ // Create a zip file with new_data.
+ TemporaryFile zip_file;
+ FILE* zip_file_ptr = fdopen(zip_file.fd, "wb");
+ ZipWriter zip_writer(zip_file_ptr);
+
+ // Add the empty new data.
+ ASSERT_EQ(0, zip_writer.StartEntry("empty_new_data", 0));
+ ASSERT_EQ(0, zip_writer.FinishEntry());
+ // Add the short written new data.
+ ASSERT_EQ(0, zip_writer.StartEntry("short_new_data", 0));
+ std::string new_data_short = std::string(10, 'a');
+ ASSERT_EQ(0, zip_writer.WriteBytes(new_data_short.data(), new_data_short.size()));
+ ASSERT_EQ(0, zip_writer.FinishEntry());
+ // Add the data of exactly one block.
+ ASSERT_EQ(0, zip_writer.StartEntry("exact_new_data", 0));
+ std::string new_data_exact = std::string(4096, 'a');
+ ASSERT_EQ(0, zip_writer.WriteBytes(new_data_exact.data(), new_data_exact.size()));
+ ASSERT_EQ(0, zip_writer.FinishEntry());
+ // Add a dummy patch data.
+ ASSERT_EQ(0, zip_writer.StartEntry("patch_data", 0));
+ ASSERT_EQ(0, zip_writer.FinishEntry());
+
+ std::vector<std::string> transfer_list = {
+ "4",
+ "1",
+ "0",
+ "0",
+ "new 2,0,1",
+ };
+ ASSERT_EQ(0, zip_writer.StartEntry("transfer_list", 0));
+ std::string commands = android::base::Join(transfer_list, '\n');
+ ASSERT_EQ(0, zip_writer.WriteBytes(commands.data(), commands.size()));
+ ASSERT_EQ(0, zip_writer.FinishEntry());
+ ASSERT_EQ(0, zip_writer.Finish());
+ ASSERT_EQ(0, fclose(zip_file_ptr));
+
+ MemMapping map;
+ ASSERT_EQ(0, sysMapFile(zip_file.path, &map));
+ ZipArchiveHandle handle;
+ ASSERT_EQ(0, OpenArchiveFromMemory(map.addr, map.length, zip_file.path, &handle));
+
+ // Set up the handler, command_pipe, patch offset & length.
+ UpdaterInfo updater_info;
+ updater_info.package_zip = handle;
+ TemporaryFile temp_pipe;
+ updater_info.cmd_pipe = fopen(temp_pipe.path, "wb");
+ updater_info.package_zip_addr = map.addr;
+ updater_info.package_zip_len = map.length;
+
+ // Updater should report the failure gracefully rather than stuck in deadlock.
+ TemporaryFile update_file;
+ std::string script_empty_data = "block_image_update(\"" + std::string(update_file.path) +
+ R"(", package_extract_file("transfer_list"), "empty_new_data", "patch_data"))";
+ expect("", script_empty_data.c_str(), kNoCause, &updater_info);
+
+ std::string script_short_data = "block_image_update(\"" + std::string(update_file.path) +
+ R"(", package_extract_file("transfer_list"), "short_new_data", "patch_data"))";
+ expect("", script_short_data.c_str(), kNoCause, &updater_info);
+
+ // Expect to write 1 block of new data successfully.
+ std::string script_exact_data = "block_image_update(\"" + std::string(update_file.path) +
+ R"(", package_extract_file("transfer_list"), "exact_new_data", "patch_data"))";
+ expect("t", script_exact_data.c_str(), kNoCause, &updater_info);
+}