ip_endpoint_unittest.cc | Explore in Territory

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "net/base/ip_endpoint.h"

#include <string.h>

#include <optional>
#include <string>
#include <tuple>

#include "base/check_op.h"
#include "base/notreached.h"
#include "base/numerics/safe_conversions.h"
#include "base/strings/string_number_conversions.h"
#include "base/sys_byteorder.h"
#include "base/values.h"
#include "build/build_config.h"
#include "net/base/ip_address.h"
#include "net/base/sockaddr_storage.h"
#include "net/base/sys_addrinfo.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/platform_test.h"

#if BUILDFLAG(IS_WIN)
#include <winsock2.h>

#include <ws2bth.h>

#include "base/test/gtest_util.h"   // For EXPECT_DCHECK_DEATH
#include "net/base/winsock_util.h"  // For kBluetoothAddressSize
#elif BUILDFLAG(IS_POSIX)
#include <netinet/in.h>
#endif

Optional;

namespace net {

namespace {

// Retuns the port field of the |sockaddr|.
const uint16_t* GetPortFieldFromSockaddr(const struct sockaddr* address,
                                         socklen_t address_len) { … }

// Returns the value of port in |sockaddr| (in host byte ordering).
int GetPortFromSockaddr(const struct sockaddr* address, socklen_t address_len) { … }

struct TestData { … } tests[] = …;

class IPEndPointTest : public PlatformTest { … };

TEST_F(IPEndPointTest, Constructor) { … }

TEST_F(IPEndPointTest, Assignment) { … }

TEST_F(IPEndPointTest, Copy) { … }

TEST_F(IPEndPointTest, ToFromSockAddr) { … }

TEST_F(IPEndPointTest, ToSockAddrBufTooSmall) { … }

TEST_F(IPEndPointTest, FromSockAddrBufTooSmall) { … }

#if BUILDFLAG(IS_WIN)

namespace {
constexpr uint8_t kBluetoothAddrBytes[kBluetoothAddressSize] = {1, 2, 3,
                                                                4, 5, 6};
constexpr uint8_t kBluetoothAddrBytes2[kBluetoothAddressSize] = {1, 2, 3,
                                                                 4, 5, 7};
const IPAddress kBluetoothAddress(kBluetoothAddrBytes);
const IPAddress kBluetoothAddress2(kBluetoothAddrBytes2);

// Select a Bluetooth port that does not fit in a uint16_t.
constexpr uint32_t kBluetoothPort = std::numeric_limits<uint16_t>::max() + 1;

SOCKADDR_BTH BuildBluetoothSockAddr(const IPAddress& ip_address,
                                    uint32_t port) {
  SOCKADDR_BTH addr = {};
  addr.addressFamily = AF_BTH;
  DCHECK_LE(ip_address.bytes().size(), sizeof(addr.btAddr));
  memcpy(&addr.btAddr, ip_address.bytes().data(), ip_address.bytes().size());
  addr.port = port;
  return addr;
}
}  // namespace

TEST_F(IPEndPointTest, WinBluetoothSockAddrCompareWithSelf) {
  IPEndPoint bt_endpoint;
  SOCKADDR_BTH addr = BuildBluetoothSockAddr(kBluetoothAddress, kBluetoothPort);
  EXPECT_TRUE(bt_endpoint.FromSockAddr(
      reinterpret_cast<const struct sockaddr*>(&addr), sizeof(addr)));
  EXPECT_EQ(bt_endpoint.address(), kBluetoothAddress);
  EXPECT_EQ(bt_endpoint.GetFamily(), AddressFamily::ADDRESS_FAMILY_UNSPECIFIED);
  EXPECT_EQ(bt_endpoint.GetSockAddrFamily(), AF_BTH);
  // Comparison functions should agree that `bt_endpoint` equals itself.
  EXPECT_FALSE(bt_endpoint < bt_endpoint);
  EXPECT_FALSE(bt_endpoint != bt_endpoint);
  EXPECT_TRUE(bt_endpoint == bt_endpoint);
  // Test that IPv4/IPv6-only methods crash.
  EXPECT_DCHECK_DEATH(bt_endpoint.port());
  SockaddrStorage storage;
  EXPECT_DCHECK_DEATH(
      std::ignore = bt_endpoint.ToSockAddr(storage.addr, &storage.addr_len));
  EXPECT_DCHECK_DEATH(bt_endpoint.ToString());
  EXPECT_DCHECK_DEATH(bt_endpoint.ToStringWithoutPort());
}

TEST_F(IPEndPointTest, WinBluetoothSockAddrCompareWithNonBluetooth) {
  IPEndPoint bt_endpoint;
  SOCKADDR_BTH addr = BuildBluetoothSockAddr(kBluetoothAddress, kBluetoothPort);
  EXPECT_TRUE(bt_endpoint.FromSockAddr(
      reinterpret_cast<const struct sockaddr*>(&addr), sizeof(addr)));

  // Compare `bt_endpoint` with non-Bluetooth endpoints.
  for (const auto& test : tests) {
    IPEndPoint endpoint(test.ip_address, 80);
    if (test.ip_address.IsIPv4()) {
      EXPECT_FALSE(bt_endpoint < endpoint);
    } else {
      EXPECT_TRUE(test.ip_address.IsIPv6());
      EXPECT_TRUE(bt_endpoint < endpoint);
    }
    EXPECT_TRUE(bt_endpoint != endpoint);
    EXPECT_FALSE(bt_endpoint == endpoint);
  }
}

TEST_F(IPEndPointTest, WinBluetoothSockAddrCompareWithCopy) {
  IPEndPoint bt_endpoint;
  SOCKADDR_BTH addr = BuildBluetoothSockAddr(kBluetoothAddress, kBluetoothPort);
  EXPECT_TRUE(bt_endpoint.FromSockAddr(
      reinterpret_cast<const struct sockaddr*>(&addr), sizeof(addr)));

  // Verify that a copy's accessors return the same values as the original's.
  IPEndPoint bt_endpoint_other(bt_endpoint);
  EXPECT_EQ(bt_endpoint.address(), bt_endpoint_other.address());
  EXPECT_EQ(bt_endpoint.GetFamily(), bt_endpoint_other.GetFamily());
  EXPECT_EQ(bt_endpoint.GetSockAddrFamily(),
            bt_endpoint_other.GetSockAddrFamily());
  // Comparison functions should agree that the endpoints are equal.
  EXPECT_FALSE(bt_endpoint < bt_endpoint_other);
  EXPECT_FALSE(bt_endpoint != bt_endpoint_other);
  EXPECT_TRUE(bt_endpoint == bt_endpoint_other);
  // Test that IPv4/IPv6-only methods crash.
  EXPECT_DCHECK_DEATH(bt_endpoint_other.port());
  SockaddrStorage storage;
  EXPECT_DCHECK_DEATH(std::ignore = bt_endpoint_other.ToSockAddr(
                          storage.addr, &storage.addr_len));
  EXPECT_DCHECK_DEATH(bt_endpoint_other.ToString());
  EXPECT_DCHECK_DEATH(bt_endpoint_other.ToStringWithoutPort());
}

TEST_F(IPEndPointTest, WinBluetoothSockAddrCompareWithDifferentPort) {
  IPEndPoint bt_endpoint;
  SOCKADDR_BTH addr = BuildBluetoothSockAddr(kBluetoothAddress, kBluetoothPort);
  EXPECT_TRUE(bt_endpoint.FromSockAddr(
      reinterpret_cast<const struct sockaddr*>(&addr), sizeof(addr)));

  // Compare with another IPEndPoint that has a different port.
  IPEndPoint bt_endpoint_other;
  SOCKADDR_BTH addr2 =
      BuildBluetoothSockAddr(kBluetoothAddress, kBluetoothPort + 1);
  EXPECT_TRUE(bt_endpoint_other.FromSockAddr(
      reinterpret_cast<const struct sockaddr*>(&addr2), sizeof(addr2)));
  EXPECT_EQ(bt_endpoint.address(), bt_endpoint_other.address());
  EXPECT_EQ(bt_endpoint.GetFamily(), bt_endpoint_other.GetFamily());
  EXPECT_EQ(bt_endpoint.GetSockAddrFamily(),
            bt_endpoint_other.GetSockAddrFamily());
  // Comparison functions should agree that `bt_endpoint == bt_endpoint_other`
  // because they have the same address and Bluetooth ports are not considered
  // by comparison functions.
  EXPECT_FALSE(bt_endpoint < bt_endpoint_other);
  EXPECT_FALSE(bt_endpoint != bt_endpoint_other);
  EXPECT_TRUE(bt_endpoint == bt_endpoint_other);
  // Test that IPv4/IPv6-only methods crash.
  EXPECT_DCHECK_DEATH(bt_endpoint_other.port());
  SockaddrStorage storage;
  EXPECT_DCHECK_DEATH(std::ignore = bt_endpoint_other.ToSockAddr(
                          storage.addr, &storage.addr_len));
  EXPECT_DCHECK_DEATH(bt_endpoint_other.ToString());
  EXPECT_DCHECK_DEATH(bt_endpoint_other.ToStringWithoutPort());
}

TEST_F(IPEndPointTest, WinBluetoothSockAddrCompareWithDifferentAddress) {
  IPEndPoint bt_endpoint;
  SOCKADDR_BTH addr = BuildBluetoothSockAddr(kBluetoothAddress, kBluetoothPort);
  EXPECT_TRUE(bt_endpoint.FromSockAddr(
      reinterpret_cast<const struct sockaddr*>(&addr), sizeof(addr)));

  // Compare with another IPEndPoint that has a different address.
  IPEndPoint bt_endpoint_other;
  SOCKADDR_BTH addr2 =
      BuildBluetoothSockAddr(kBluetoothAddress2, kBluetoothPort);
  EXPECT_TRUE(bt_endpoint_other.FromSockAddr(
      reinterpret_cast<const struct sockaddr*>(&addr2), sizeof(addr2)));
  EXPECT_LT(bt_endpoint.address(), bt_endpoint_other.address());
  EXPECT_EQ(bt_endpoint.GetFamily(), bt_endpoint_other.GetFamily());
  EXPECT_EQ(bt_endpoint.GetSockAddrFamily(),
            bt_endpoint_other.GetSockAddrFamily());
  // Comparison functions should agree that `bt_endpoint < bt_endpoint_other`
  // due to lexicographic comparison of the address bytes.
  EXPECT_TRUE(bt_endpoint < bt_endpoint_other);
  EXPECT_TRUE(bt_endpoint != bt_endpoint_other);
  EXPECT_FALSE(bt_endpoint == bt_endpoint_other);
  // Test that IPv4/IPv6-only methods crash.
  EXPECT_DCHECK_DEATH(bt_endpoint_other.port());
  SockaddrStorage storage;
  EXPECT_DCHECK_DEATH(std::ignore = bt_endpoint_other.ToSockAddr(
                          storage.addr, &storage.addr_len));
  EXPECT_DCHECK_DEATH(bt_endpoint_other.ToString());
  EXPECT_DCHECK_DEATH(bt_endpoint_other.ToStringWithoutPort());
}
#endif

TEST_F(IPEndPointTest, Equality) { … }

TEST_F(IPEndPointTest, LessThan) { … }

TEST_F(IPEndPointTest, ToString) { … }

TEST_F(IPEndPointTest, RoundtripThroughValue) { … }

TEST_F(IPEndPointTest, FromGarbageValue) { … }

TEST_F(IPEndPointTest, FromMalformedValues) { … }

}  // namespace

}  // namespace net
chromium/net/base/ip_endpoint_unittest.cc
