1 // Copyright 2012 The Chromium Authors
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "net/base/network_interfaces.h"
6
7 #include <ostream>
8 #include <string>
9 #include <unordered_set>
10
11 #include "base/strings/utf_string_conversions.h"
12 #include "build/build_config.h"
13 #include "net/base/ip_endpoint.h"
14 #include "testing/gtest/include/gtest/gtest.h"
15
16 #if BUILDFLAG(IS_POSIX) && !BUILDFLAG(IS_ANDROID)
17 #include <net/if.h>
18 #elif BUILDFLAG(IS_WIN)
19 #include <windows.h>
20
21 #include <iphlpapi.h>
22 #include <objbase.h>
23 #include "base/strings/string_util.h"
24 #include "base/win/win_util.h"
25 #endif
26
27 namespace net {
28
29 namespace {
30
31 // Verify GetNetworkList().
TEST(NetworkInterfacesTest,GetNetworkList)32 TEST(NetworkInterfacesTest, GetNetworkList) {
33 NetworkInterfaceList list;
34 ASSERT_TRUE(GetNetworkList(&list, INCLUDE_HOST_SCOPE_VIRTUAL_INTERFACES));
35 for (auto it = list.begin(); it != list.end(); ++it) {
36 // Verify that the names are not empty.
37 EXPECT_FALSE(it->name.empty());
38 EXPECT_FALSE(it->friendly_name.empty());
39
40 // Verify that the address is correct.
41 EXPECT_TRUE(it->address.IsValid()) << "Invalid address of size "
42 << it->address.size();
43 EXPECT_FALSE(it->address.IsZero());
44 EXPECT_GT(it->prefix_length, 1u);
45 EXPECT_LE(it->prefix_length, it->address.size() * 8);
46
47 #if BUILDFLAG(IS_WIN)
48 // On Windows |name| is NET_LUID.
49 NET_LUID luid;
50 EXPECT_EQ(static_cast<DWORD>(NO_ERROR),
51 ConvertInterfaceIndexToLuid(it->interface_index, &luid));
52 GUID guid;
53 EXPECT_EQ(static_cast<DWORD>(NO_ERROR),
54 ConvertInterfaceLuidToGuid(&luid, &guid));
55 auto name = base::win::WStringFromGUID(guid);
56 EXPECT_EQ(base::UTF8ToWide(it->name), name);
57
58 if (it->type == NetworkChangeNotifier::CONNECTION_WIFI) {
59 EXPECT_NE(WIFI_PHY_LAYER_PROTOCOL_NONE, GetWifiPHYLayerProtocol());
60 }
61 #elif BUILDFLAG(IS_POSIX) && !BUILDFLAG(IS_ANDROID)
62 char name[IF_NAMESIZE];
63 EXPECT_TRUE(if_indextoname(it->interface_index, name));
64 EXPECT_STREQ(it->name.c_str(), name);
65 #endif
66 }
67 }
68
TEST(NetworkInterfacesTest,GetWifiSSID)69 TEST(NetworkInterfacesTest, GetWifiSSID) {
70 // We can't check the result of GetWifiSSID() directly, since the result
71 // will differ across machines. Simply exercise the code path and hope that it
72 // doesn't crash.
73 EXPECT_NE((const char*)nullptr, GetWifiSSID().c_str());
74 }
75
TEST(NetworkInterfacesTest,GetHostName)76 TEST(NetworkInterfacesTest, GetHostName) {
77 // We can't check the result of GetHostName() directly, since the result
78 // will differ across machines. Our goal here is to simply exercise the
79 // code path, and check that things "look about right".
80 std::string hostname = GetHostName();
81 EXPECT_FALSE(hostname.empty());
82 }
83
84 } // namespace
85
86 } // namespace net
87