Move shared files in net/quic/ into net/quic/core/

net/quic/crypto/null_decrypter.cc

-// Copyright (c) 2012 The Chromium 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 "net/quic/crypto/null_decrypter.h"
-
-#include <stdint.h>
-
-#include "net/quic/quic_bug_tracker.h"
-#include "net/quic/quic_data_reader.h"
-#include "net/quic/quic_utils.h"
-
-using base::StringPiece;
-using std::string;
-
-namespace net {
-
-NullDecrypter::NullDecrypter() {}
-
-bool NullDecrypter::SetKey(StringPiece key) {
-  return key.empty();
-}
-
-bool NullDecrypter::SetNoncePrefix(StringPiece nonce_prefix) {
-  return nonce_prefix.empty();
-}
-
-bool NullDecrypter::SetPreliminaryKey(StringPiece key) {
-  QUIC_BUG << "Should not be called";
-  return false;
-}
-
-bool NullDecrypter::SetDiversificationNonce(DiversificationNonce nonce) {
-  QUIC_BUG << "Should not be called";
-  return true;
-}
-
-bool NullDecrypter::DecryptPacket(QuicPathId /*path_id*/,
-                                  QuicPacketNumber /*packet_number*/,
-                                  StringPiece associated_data,
-                                  StringPiece ciphertext,
-                                  char* output,
-                                  size_t* output_length,
-                                  size_t max_output_length) {
-  QuicDataReader reader(ciphertext.data(), ciphertext.length());
-  uint128 hash;
-
-  if (!ReadHash(&reader, &hash)) {
-    return false;
-  }
-
-  StringPiece plaintext = reader.ReadRemainingPayload();
-  if (plaintext.length() > max_output_length) {
-    QUIC_BUG << "Output buffer must be larger than the plaintext.";
-    return false;
-  }
-  if (hash != ComputeHash(associated_data, plaintext)) {
-    return false;
-  }
-  // Copy the plaintext to output.
-  memcpy(output, plaintext.data(), plaintext.length());
-  *output_length = plaintext.length();
-  return true;
-}
-
-StringPiece NullDecrypter::GetKey() const {
-  return StringPiece();
-}
-
-StringPiece NullDecrypter::GetNoncePrefix() const {
-  return StringPiece();
-}
-
-const char* NullDecrypter::cipher_name() const {
-  return "NULL";
-}
-
-uint32_t NullDecrypter::cipher_id() const {
-  return 0;
-}
-
-bool NullDecrypter::ReadHash(QuicDataReader* reader, uint128* hash) {
-  uint64_t lo;
-  uint32_t hi;
-  if (!reader->ReadUInt64(&lo) || !reader->ReadUInt32(&hi)) {
-    return false;
-  }
-  *hash = hi;
-  *hash <<= 64;
-  *hash += lo;
-  return true;
-}
-
-uint128 NullDecrypter::ComputeHash(const StringPiece data1,
-                                   const StringPiece data2) const {
-  uint128 correct_hash = QuicUtils::FNV1a_128_Hash_Two(
-      data1.data(), data1.length(), data2.data(), data2.length());
-  uint128 mask(UINT64_C(0x0), UINT64_C(0xffffffff));
-  mask <<= 96;
-  correct_hash &= ~mask;
-  return correct_hash;
-}
-
-}  // namespace net