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// Copyright (c) 2013 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/core/quic_utils.h"
#include "net/quic/core/crypto/crypto_protocol.h"
#include "testing/gtest/include/gtest/gtest.h"
using std::string;
namespace net {
namespace test {
namespace {
TEST(QuicUtilsTest, DetermineAddressChangeType) {
const string kIPv4String1 = "1.2.3.4";
const string kIPv4String2 = "1.2.3.5";
const string kIPv4String3 = "1.1.3.5";
const string kIPv6String1 = "2001:700:300:1800::f";
const string kIPv6String2 = "2001:700:300:1800:1:1:1:f";
QuicSocketAddress old_address;
QuicSocketAddress new_address;
QuicIpAddress address;
EXPECT_EQ(NO_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
ASSERT_TRUE(address.FromString(kIPv4String1));
old_address = QuicSocketAddress(address, 1234);
EXPECT_EQ(NO_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
new_address = QuicSocketAddress(address, 1234);
EXPECT_EQ(NO_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
new_address = QuicSocketAddress(address, 5678);
EXPECT_EQ(PORT_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
ASSERT_TRUE(address.FromString(kIPv6String1));
old_address = QuicSocketAddress(address, 1234);
new_address = QuicSocketAddress(address, 5678);
EXPECT_EQ(PORT_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
ASSERT_TRUE(address.FromString(kIPv4String1));
old_address = QuicSocketAddress(address, 1234);
ASSERT_TRUE(address.FromString(kIPv6String1));
new_address = QuicSocketAddress(address, 1234);
EXPECT_EQ(IPV4_TO_IPV6_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
old_address = QuicSocketAddress(address, 1234);
ASSERT_TRUE(address.FromString(kIPv4String1));
new_address = QuicSocketAddress(address, 1234);
EXPECT_EQ(IPV6_TO_IPV4_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
ASSERT_TRUE(address.FromString(kIPv6String2));
new_address = QuicSocketAddress(address, 1234);
EXPECT_EQ(IPV6_TO_IPV6_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
ASSERT_TRUE(address.FromString(kIPv4String1));
old_address = QuicSocketAddress(address, 1234);
ASSERT_TRUE(address.FromString(kIPv4String2));
new_address = QuicSocketAddress(address, 1234);
EXPECT_EQ(IPV4_SUBNET_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
ASSERT_TRUE(address.FromString(kIPv4String3));
new_address = QuicSocketAddress(address, 1234);
EXPECT_EQ(IPV4_TO_IPV4_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
}
uint128 IncrementalHashReference(const void* data, size_t len) {
// The two constants are defined as part of the hash algorithm.
// see http://www.isthe.com/chongo/tech/comp/fnv/
// hash = 144066263297769815596495629667062367629
uint128 hash =
MakeUint128(UINT64_C(7809847782465536322), UINT64_C(7113472399480571277));
// kPrime = 309485009821345068724781371
const uint128 kPrime = MakeUint128(16777216, 315);
const uint8_t* octets = reinterpret_cast<const uint8_t*>(data);
for (size_t i = 0; i < len; ++i) {
hash = hash ^ MakeUint128(0, octets[i]);
hash = hash * kPrime;
}
return hash;
}
TEST(QuicUtilsHashTest, ReferenceTest) {
std::vector<uint8_t> data(32);
for (size_t i = 0; i < data.size(); ++i) {
data[i] = i % 255;
}
EXPECT_EQ(IncrementalHashReference(data.data(), data.size()),
QuicUtils::FNV1a_128_Hash(QuicStringPiece(
reinterpret_cast<const char*>(data.data()), data.size())));
}
} // namespace
} // namespace test
} // namespace net
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