Add socket communication between recovery and minadbd
This cl adds a socket pair to support the communication between recovery
and minadbd. Therefore, minadbd will be able to issue multiple commands
to recovery and get back the status of each command.
This cl also switches the adb sideload from the recovery menu to use
this protocol; and moves minadbd to a separate binary.
Bug: 130166585
Test: sideload a package
Change-Id: I80d36d5c4e6fe1ae3ea23640907bc50c0dc0d482
diff --git a/minadbd/minadbd_types.h b/minadbd/minadbd_types.h
new file mode 100644
index 0000000..7bd6909
--- /dev/null
+++ b/minadbd/minadbd_types.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <stdint.h>
+
+// The message between recovery and minadbd is 8 bytes in size unless the length is explicitly
+// specified. Both the command and status has the format |prefix(4 bytes) + encoded enum(4 bytes)|.
+constexpr size_t kMinadbdMessageSize = 8;
+constexpr char const kMinadbdCommandPrefix[] = "COMD";
+constexpr char const kMinadbdStatusPrefix[] = "STAT";
+
+enum MinadbdErrorCode : int {
+ kMinadbdSuccess = 0,
+ kMinadbdArgumentsParsingError = 1,
+ kMinadbdSocketIOError = 2,
+ kMinadbdMessageFormatError = 3,
+ kMinadbdAdbVersionError = 4,
+ kMinadbdPackageSizeError = 5,
+ kMinadbdFuseStartError = 6,
+ kMinadbdUnsupportedCommandError = 7,
+ kMinadbdCommandExecutionError = 8,
+ kMinadbdErrorUnknown = 9,
+};
+
+enum class MinadbdCommandStatus : uint32_t {
+ kSuccess = 0,
+ kFailure = 1,
+};
+
+enum class MinadbdCommands : uint32_t {
+ kInstall = 0,
+ kUiPrint = 1,
+ kError = 2,
+};
+
+static_assert(kMinadbdMessageSize == sizeof(kMinadbdCommandPrefix) - 1 + sizeof(MinadbdCommands));
+static_assert(kMinadbdMessageSize ==
+ sizeof(kMinadbdStatusPrefix) - 1 + sizeof(MinadbdCommandStatus));