mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-05 03:54:35 +00:00
73e9f686e8
MozReview-Commit-ID: 1x2Cwan8nLL --HG-- extra : rebase_source : 079a8945f4d04be06dd99b776246d9b96930613a
105 lines
2.5 KiB
C++
105 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "BTVerifier.h"
|
|
#include "CTUtils.h"
|
|
#include "SignedCertificateTimestamp.h"
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "mozilla/Assertions.h"
|
|
#include "mozilla/Move.h"
|
|
#include "mozilla/TypeTraits.h"
|
|
|
|
namespace mozilla { namespace ct {
|
|
|
|
using namespace mozilla::pkix;
|
|
|
|
typedef mozilla::pkix::Result Result;
|
|
|
|
// Members of a Inclusion Proof struct
|
|
static const size_t kLogIdPrefixLengthBytes = 1;
|
|
static const size_t kProofTreeSizeLength = 8;
|
|
static const size_t kLeafIndexLength = 8;
|
|
static const size_t kInclusionPathLengthBytes = 2;
|
|
static const size_t kNodeHashPrefixLengthBytes = 1;
|
|
|
|
Result
|
|
DecodeInclusionProof(pkix::Reader& reader, InclusionProofDataV2& output)
|
|
{
|
|
InclusionProofDataV2 result;
|
|
|
|
Input logId;
|
|
Result rv = ReadVariableBytes<kLogIdPrefixLengthBytes>(reader, logId);
|
|
if (rv != Success) {
|
|
return rv;
|
|
}
|
|
|
|
rv = ReadUint<kProofTreeSizeLength>(reader, result.treeSize);
|
|
if (rv != Success) {
|
|
return rv;
|
|
}
|
|
|
|
if (result.treeSize < 1) {
|
|
return pkix::Result::ERROR_BAD_DER;
|
|
}
|
|
|
|
rv = ReadUint<kLeafIndexLength>(reader, result.leafIndex);
|
|
if (rv != Success) {
|
|
return rv;
|
|
}
|
|
|
|
if (result.leafIndex >= result.treeSize) {
|
|
return pkix::Result::ERROR_BAD_DER;
|
|
}
|
|
|
|
Input pathInput;
|
|
rv = ReadVariableBytes<kInclusionPathLengthBytes>(reader, pathInput);
|
|
if (rv != Success) {
|
|
return rv;
|
|
}
|
|
|
|
if (pathInput.GetLength() < 1) {
|
|
return pkix::Result::ERROR_BAD_DER;
|
|
}
|
|
|
|
Reader pathReader(pathInput);
|
|
Vector<Buffer, kInitialPathLengthCapacity> inclusionPath;
|
|
|
|
while (!pathReader.AtEnd()) {
|
|
Input hash;
|
|
rv = ReadVariableBytes<kNodeHashPrefixLengthBytes>(pathReader, hash);
|
|
if (rv != Success) {
|
|
return rv;
|
|
}
|
|
|
|
Buffer hashBuffer;
|
|
rv = InputToBuffer(hash, hashBuffer);
|
|
if (rv != Success) {
|
|
return rv;
|
|
}
|
|
|
|
if (!inclusionPath.append(Move(hashBuffer))) {
|
|
return pkix::Result::FATAL_ERROR_NO_MEMORY;
|
|
}
|
|
}
|
|
|
|
if (!reader.AtEnd()){
|
|
return pkix::Result::ERROR_BAD_DER;
|
|
}
|
|
|
|
rv = InputToBuffer(logId, result.logId);
|
|
if (rv != Success) {
|
|
return rv;
|
|
}
|
|
|
|
result.inclusionPath = Move(inclusionPath);
|
|
|
|
output = Move(result);
|
|
return Success;
|
|
}
|
|
} } //namespace mozilla::ct
|