zircon/system/core/devmgr/fshost/block-device.h

// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#pragma once

#include <memory>
#include <optional>

#include <fs-management/mount.h>
#include <zircon/types.h>

#include "block-device-interface.h"
#include "filesystem-mounter.h"

namespace devmgr {

// A concrete implementation of the block device interface.
//
// Used by fshost to attach either drivers or filesystems to
// incoming block devices.
class BlockDevice final : public BlockDeviceInterface {
public:
    BlockDevice(FilesystemMounter* mounter, fbl::unique_fd fd);

    disk_format_t GetFormat() final;
    void SetFormat(disk_format_t format) final;
    bool Netbooting() final;
    zx_status_t GetInfo(fuchsia_hardware_block_BlockInfo* out_info) final;
    zx_status_t GetTypeGUID(fuchsia_hardware_block_partition_GUID* out_guid) final;
    zx_status_t AttachDriver(const fbl::StringPiece& driver) final;
    zx_status_t UnsealZxcrypt() final;
    zx_status_t IsUnsealedZxcrypt(bool* is_unsealed_zxcrypt) final;
    zx_status_t FormatZxcrypt() final;
    bool ShouldCheckFilesystems() final;
    zx_status_t CheckFilesystem() final;
    zx_status_t FormatFilesystem() final;
    zx_status_t MountFilesystem() final;

private:
    FilesystemMounter* mounter_ = nullptr;
    fbl::unique_fd fd_;
    std::optional<fuchsia_hardware_block_BlockInfo> info_ = {};
    disk_format_t format_ = DISK_FORMAT_UNKNOWN;
};

} // namespace devmgr