blob: 33cc9e1822191c680e0c60cfda13dc1cc6e8d8b6 [file] [log] [blame]
// Copyright 2018 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.
#include <lib/fit/defer.h>
#include <vector>
#include <blobfs/host.h>
#include <digest/digest.h>
#include <fbl/array.h>
#include <fbl/vector.h>
#include <fs-host/common.h>
class BlobfsCreator : public FsCreator {
BlobfsCreator() : FsCreator(blobfs::kMinimumDataBlocks) {}
// Parent overrides:
zx_status_t Usage() override;
const char* GetToolName() override { return "blobfs"; }
bool IsCommandValid(Command command) override;
bool IsOptionValid(Option option) override;
bool IsArgumentValid(Argument argument) override;
// Identify blobs to be operated on, populating the internal
// |blob_list_|.
zx_status_t ProcessManifestLine(FILE* manifest, const char* dir_path) override;
zx_status_t ProcessCustom(int argc, char** argv, uint8_t* processed) override;
// Calculates merkle trees for the processed blobs, and determines
// the total size of the underlying storage necessary to contain them.
zx_status_t CalculateRequiredSize(off_t* out) override;
// TODO(planders): Add ls support for blobfs.
zx_status_t Mkfs() override;
zx_status_t Fsck() override;
zx_status_t UsedDataSize() override;
zx_status_t UsedInodes() override;
zx_status_t UsedSize() override;
zx_status_t Add() override;
// A comparison function used to quickly compare MerkleInfo.
struct DigestCompare {
inline bool operator()(const blobfs::MerkleInfo& lhs, const blobfs::MerkleInfo& rhs) const {
const uint8_t* lhs_bytes = lhs.digest.get();
const uint8_t* rhs_bytes = rhs.digest.get();
for (size_t i = 0; i < digest::kSha256Length; i++) {
if (lhs_bytes[i] < rhs_bytes[i]) {
return true;
return false;
// List of all blobs to be copied into blobfs.
fbl::Vector<fbl::String> blob_list_;
// A list of Merkle Information for blobs in |blob_list_|.
std::vector<blobfs::MerkleInfo> merkle_list_;