1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
content / browser / network / sandboxed_network_list_browsertest.cc [blame]
// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <memory>
#include <string>
#include <string_view>
#include <vector>
#include "base/feature_list.h"
#include "base/files/file_util.h"
#include "base/json/json_reader.h"
#include "base/json/json_writer.h"
#include "base/run_loop.h"
#include "base/test/bind.h"
#include "base/test/scoped_feature_list.h"
#include "base/threading/thread_restrictions.h"
#include "base/values.h"
#include "build/build_config.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/network_service_instance.h"
#include "content/public/browser/page.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/content_features.h"
#include "content/public/common/content_paths.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/content_browser_test.h"
#include "content/shell/browser/shell.h"
#include "net/base/network_interfaces.h"
#include "sandbox/features.h"
#include "sandbox/policy/features.h"
#include "services/network/public/mojom/network_service.mojom.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace content {
namespace {
class SandboxedNetworkListBrowserTest : public ContentBrowserTest {
public:
SandboxedNetworkListBrowserTest() {
[[maybe_unused]] bool sandbox_enabled = false;
[[maybe_unused]] bool lpac_enabled = false;
switch (GetTestPreCount()) {
case 0:
break;
case 1:
sandbox_enabled = false;
lpac_enabled = false;
break;
case 2:
sandbox_enabled = true;
lpac_enabled = false;
break;
case 3:
sandbox_enabled = true;
lpac_enabled = true;
break;
default:
NOTREACHED();
}
std::vector<base::test::FeatureRef> enabled_features;
std::vector<base::test::FeatureRef> disabled_features;
disabled_features.push_back(features::kNetworkServiceInProcess);
#if !BUILDFLAG(IS_MAC) && !BUILDFLAG(IS_FUCHSIA)
if (sandbox_enabled) {
enabled_features.push_back(
sandbox::policy::features::kNetworkServiceSandbox);
} else {
disabled_features.push_back(
sandbox::policy::features::kNetworkServiceSandbox);
}
#endif // !BUILDFLAG(IS_MAC) && !BUILDFLAG(IS_FUCHSIA)
#if BUILDFLAG(IS_WIN)
if (lpac_enabled) {
enabled_features.push_back(
sandbox::policy::features::kWinSboxNetworkServiceSandboxIsLPAC);
} else {
disabled_features.push_back(
sandbox::policy::features::kWinSboxNetworkServiceSandboxIsLPAC);
}
#endif // BUILDFLAG(IS_WIN)
scoped_features_.InitWithFeatures(enabled_features, disabled_features);
}
protected:
#if BUILDFLAG(IS_ANDROID)
void SetUp() override {
GTEST_SKIP() << "GetNetworkList not yet supported in Android network "
"sandbox. See https://crbug.com/1381381.";
}
#endif // BUILDFLAG(IS_ANDROID)
void WriteInterfacesToFile(const base::FilePath& path) {
base::Value::List interfaces_list;
base::RunLoop run_loop;
std::vector<net::NetworkInterface> interfaces;
GetNetworkService()->GetNetworkList(
net::EXCLUDE_HOST_SCOPE_VIRTUAL_INTERFACES,
base::BindLambdaForTesting(
[&](const std::optional<std::vector<net::NetworkInterface>>& ret) {
interfaces = *ret;
run_loop.Quit();
}));
run_loop.Run();
for (const auto& interface : interfaces) {
base::Value::Dict interface_dict;
interface_dict.Set("name", interface.name);
interface_dict.Set("type", interface.type);
interface_dict.Set("address", interface.address.ToString());
interfaces_list.Append(std::move(interface_dict));
}
std::string json;
EXPECT_TRUE(base::JSONWriter::Write(interfaces_list, &json));
EXPECT_TRUE(base::WriteFile(path, json));
}
bool AreFileContentsIdentical(const base::FilePath& path1,
const base::FilePath& path2) {
std::string contents1;
EXPECT_TRUE(base::ReadFileToString(path1, &contents1));
std::string contents2;
EXPECT_TRUE(base::ReadFileToString(path2, &contents2));
return (contents1 == contents2);
}
base::FilePath GetPersistentPathLocation(std::string_view name) {
return shell()->web_contents()->GetBrowserContext()->GetPath().AppendASCII(
name);
}
private:
size_t GetTestPreCount() {
constexpr std::string_view kPreTestPrefix = "PRE_";
std::string_view test_name =
testing::UnitTest::GetInstance()->current_test_info()->name();
size_t count = 0;
while (base::StartsWith(test_name, kPreTestPrefix)) {
++count;
test_name = test_name.substr(kPreTestPrefix.size());
}
return count;
}
base::test::ScopedFeatureList scoped_features_;
};
// First part of the test has sandbox enabled, and on Windows, LPAC sandbox also
// enabled.
IN_PROC_BROWSER_TEST_F(SandboxedNetworkListBrowserTest,
PRE_PRE_PRE_NetworkList) {
base::ScopedAllowBlockingForTesting allow_blocking;
WriteInterfacesToFile(GetPersistentPathLocation("3"));
}
// Second part of the test has sandbox enabled, and on Windows, LPAC sandbox
// also disabled. On non-Windows this makes the test the same as the first
// one above.
IN_PROC_BROWSER_TEST_F(SandboxedNetworkListBrowserTest, PRE_PRE_NetworkList) {
base::ScopedAllowBlockingForTesting allow_blocking;
WriteInterfacesToFile(GetPersistentPathLocation("2"));
}
// Third part of the test runs with sandbox disabled.
IN_PROC_BROWSER_TEST_F(SandboxedNetworkListBrowserTest, PRE_NetworkList) {
base::ScopedAllowBlockingForTesting allow_blocking;
WriteInterfacesToFile(GetPersistentPathLocation("1"));
}
// The fourth part of the test verifies all the other results match and deletes
// the files.
IN_PROC_BROWSER_TEST_F(SandboxedNetworkListBrowserTest, NetworkList) {
base::ScopedAllowBlockingForTesting allow_blocking;
EXPECT_TRUE(AreFileContentsIdentical(GetPersistentPathLocation("1"),
GetPersistentPathLocation("2")));
EXPECT_TRUE(AreFileContentsIdentical(GetPersistentPathLocation("1"),
GetPersistentPathLocation("3")));
base::DeleteFile(GetPersistentPathLocation("1"));
base::DeleteFile(GetPersistentPathLocation("2"));
base::DeleteFile(GetPersistentPathLocation("3"));
}
} // namespace
} // namespace content