Create bootloader_message static library.
bootloader_messages merges bootloader_message_writer
and bootloader.cpp, so we can use the same library to
manage bootloader_message in normal boot and recovery mode.
Bug: 29582118
Change-Id: I9efdf776ef8f02b53911ff43a518e035e0c29618
(cherry picked from commit 2f272c0551f984e83bc5abaf240e0dddb38a3326)
diff --git a/uncrypt/Android.mk b/uncrypt/Android.mk
index 3613799..59084b0 100644
--- a/uncrypt/Android.mk
+++ b/uncrypt/Android.mk
@@ -15,27 +15,17 @@
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
-LOCAL_CLANG := true
-LOCAL_SRC_FILES := bootloader_message_writer.cpp
-LOCAL_MODULE := libbootloader_message_writer
-LOCAL_STATIC_LIBRARIES := libbase libfs_mgr
-LOCAL_CFLAGS := -Werror
-LOCAL_C_INCLUDES := $(LOCAL_PATH)/..
-LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
-
-include $(BUILD_STATIC_LIBRARY)
-
-include $(CLEAR_VARS)
LOCAL_CLANG := true
LOCAL_SRC_FILES := uncrypt.cpp
LOCAL_C_INCLUDES := $(LOCAL_PATH)/..
LOCAL_MODULE := uncrypt
-LOCAL_STATIC_LIBRARIES := libbootloader_message_writer \
- libbase \
- liblog \
- libfs_mgr \
- libcutils
+LOCAL_STATIC_LIBRARIES := \
+ libbootloader_message \
+ libbase \
+ liblog \
+ libfs_mgr \
+ libcutils
LOCAL_CFLAGS := -Werror
LOCAL_INIT_RC := uncrypt.rc
diff --git a/uncrypt/bootloader_message_writer.cpp b/uncrypt/bootloader_message_writer.cpp
deleted file mode 100644
index db52121..0000000
--- a/uncrypt/bootloader_message_writer.cpp
+++ /dev/null
@@ -1,106 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <errno.h>
-#include <fcntl.h>
-#include <string.h>
-
-#include <string>
-#include <vector>
-
-#include <android-base/file.h>
-#include <android-base/properties.h>
-#include <android-base/stringprintf.h>
-#include <android-base/unique_fd.h>
-#include <fs_mgr.h>
-
-#include "bootloader.h"
-
-static struct fstab* read_fstab(std::string* err) {
- std::string ro_hardware = android::base::GetProperty("ro.hardware", "");
- if (ro_hardware.empty()) {
- *err = "failed to get ro.hardware";
- return nullptr;
- }
- // The fstab path is always "/fstab.${ro.hardware}".
- std::string fstab_path = "/fstab." + ro_hardware;
- struct fstab* fstab = fs_mgr_read_fstab(fstab_path.c_str());
- if (fstab == nullptr) {
- *err = "failed to read " + fstab_path;
- }
- return fstab;
-}
-
-static std::string get_misc_blk_device(std::string* err) {
- struct fstab* fstab = read_fstab(err);
- if (fstab == nullptr) {
- return "";
- }
- fstab_rec* record = fs_mgr_get_entry_for_mount_point(fstab, "/misc");
- if (record == nullptr) {
- *err = "failed to find /misc partition";
- return "";
- }
- return record->blk_device;
-}
-
-static bool write_bootloader_message(const bootloader_message& boot, std::string* err) {
- std::string misc_blk_device = get_misc_blk_device(err);
- if (misc_blk_device.empty()) {
- return false;
- }
- android::base::unique_fd fd(open(misc_blk_device.c_str(), O_WRONLY | O_SYNC));
- if (fd.get() == -1) {
- *err = android::base::StringPrintf("failed to open %s: %s", misc_blk_device.c_str(),
- strerror(errno));
- return false;
- }
- if (!android::base::WriteFully(fd.get(), &boot, sizeof(boot))) {
- *err = android::base::StringPrintf("failed to write %s: %s", misc_blk_device.c_str(),
- strerror(errno));
- return false;
- }
- // TODO: O_SYNC and fsync duplicates each other?
- if (fsync(fd.get()) == -1) {
- *err = android::base::StringPrintf("failed to fsync %s: %s", misc_blk_device.c_str(),
- strerror(errno));
- return false;
- }
- return true;
-}
-
-bool clear_bootloader_message(std::string* err) {
- bootloader_message boot = {};
- return write_bootloader_message(boot, err);
-}
-
-bool write_bootloader_message(const std::vector<std::string>& options, std::string* err) {
- bootloader_message boot = {};
- strlcpy(boot.command, "boot-recovery", sizeof(boot.command));
- strlcpy(boot.recovery, "recovery\n", sizeof(boot.recovery));
- for (const auto& s : options) {
- strlcat(boot.recovery, s.c_str(), sizeof(boot.recovery));
- if (s.back() != '\n') {
- strlcat(boot.recovery, "\n", sizeof(boot.recovery));
- }
- }
- return write_bootloader_message(boot, err);
-}
-
-extern "C" bool write_bootloader_message(const char* options) {
- std::string err;
- return write_bootloader_message({options}, &err);
-}
diff --git a/uncrypt/uncrypt.cpp b/uncrypt/uncrypt.cpp
index c77e987..8b4d8ef 100644
--- a/uncrypt/uncrypt.cpp
+++ b/uncrypt/uncrypt.cpp
@@ -111,7 +111,7 @@
#include <android-base/stringprintf.h>
#include <android-base/strings.h>
#include <android-base/unique_fd.h>
-#include <bootloader_message_writer.h>
+#include <bootloader_message/bootloader_message.h>
#include <cutils/android_reboot.h>
#include <cutils/sockets.h>
#include <fs_mgr.h>