recovery: Implement a volume manager
This is a copy of the pre-binderized vold which has been converted to
use direct calls instead of sockets and stripped down to only what is
needed to support recovery.
Change-Id: Ic82d929e052b5ba70ecf7b475e0a223d77d9687e
diff --git a/volume_manager/NetlinkHandler.cpp b/volume_manager/NetlinkHandler.cpp
new file mode 100644
index 0000000..1cd469d
--- /dev/null
+++ b/volume_manager/NetlinkHandler.cpp
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ * Copyright (C) 2019 The LineageOS 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define LOG_TAG "Vold"
+
+#include <cutils/log.h>
+
+#include <sysutils/NetlinkEvent.h>
+#include <volume_manager/VolumeManager.h>
+#include "NetlinkHandler.h"
+
+NetlinkHandler::NetlinkHandler(int listenerSocket) : NetlinkListener(listenerSocket) {}
+
+NetlinkHandler::~NetlinkHandler() {}
+
+bool NetlinkHandler::start() {
+ return this->startListener() == 0;
+}
+
+void NetlinkHandler::stop() {
+ this->stopListener();
+}
+
+void NetlinkHandler::onEvent(NetlinkEvent* evt) {
+ android::volmgr::VolumeManager* vm = android::volmgr::VolumeManager::Instance();
+ const char* subsys = evt->getSubsystem();
+
+ if (!subsys) {
+ SLOGW("No subsystem found in netlink event");
+ return;
+ }
+
+ if (!strcmp(subsys, "block")) {
+ vm->handleBlockEvent(evt);
+ }
+}