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

1 files changed, 52 insertions, 0 deletions

diff --git a/volume_manager/DiskPartition.h b/volume_manager/DiskPartition.h
new file mode 100644
index 00000000..0f395839
--- /dev/null
+++ b/volume_manager/DiskPartition.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2015 Cyanogen, Inc.
+ * 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.
+ */
+
+#ifndef ANDROID_VOLMGR_DISKPARTITION_H
+#define ANDROID_VOLMGR_DISKPARTITION_H
+
+#include "Disk.h"
+
+namespace android {
+namespace volmgr {
+
+/*
+ * Representation of a single partition on physical media.  Useful for
+ * single media partitions such as "internal" sdcard partitions.
+ */
+
+class DiskPartition : public Disk {
+  public:
+    DiskPartition(const std::string& eventPath, dev_t device, const std::string& nickname, int flags,
+                  int partnum, const std::string& fstype = "", const std::string& mntopts = "");
+    virtual ~DiskPartition();
+
+    virtual status_t create();
+    virtual status_t destroy();
+
+  private:
+    /* Partition number */
+    int mPartNum;
+    /* Filesystem type */
+    std::string mFsType;
+    /* Mount options */
+    std::string mMntOpts;
+};
+
+}  // namespace volmgr
+}  // namespace android
+
+#endif