1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "net/dns/dns_config_service_win.h"
7 #include "base/basictypes.h"
8 #include "base/logging.h"
9 #include "base/win/windows_version.h"
10 #include "net/dns/dns_protocol.h"
11 #include "testing/gtest/include/gtest/gtest.h"
17 TEST(DnsConfigServiceWinTest
, ParseSearchList
) {
18 const struct TestCase
{
20 const char* output
[4]; // NULL-terminated, empty if expected false
22 { L
"chromium.org", { "chromium.org", NULL
} },
23 { L
"chromium.org,org", { "chromium.org", "org", NULL
} },
24 // Empty suffixes terminate the list
25 { L
"crbug.com,com,,org", { "crbug.com", "com", NULL
} },
26 // IDN are converted to punycode
27 { L
"\u017c\xf3\u0142ta.pi\u0119\u015b\u0107.pl,pl",
28 { "xn--ta-4ja03asj.xn--pi-wla5e0q.pl", "pl", NULL
} },
29 // Empty search list is invalid
34 std::vector
<std::string
> actual_output
, expected_output
;
35 for (unsigned i
= 0; i
< arraysize(cases
); ++i
) {
36 const TestCase
& t
= cases
[i
];
37 actual_output
.clear();
38 actual_output
.push_back("UNSET");
39 expected_output
.clear();
40 for (const char* const* output
= t
.output
; *output
; ++output
) {
41 expected_output
.push_back(*output
);
43 bool result
= internal::ParseSearchList(t
.input
, &actual_output
);
44 if (!expected_output
.empty()) {
46 EXPECT_EQ(expected_output
, actual_output
);
48 EXPECT_FALSE(result
) << "Unexpected parse success on " << t
.input
;
55 IF_OPER_STATUS oper_status
;
56 const WCHAR
* dns_suffix
;
57 std::string dns_server_addresses
[4]; // Empty string indicates end.
61 scoped_ptr
<IP_ADAPTER_ADDRESSES
, base::FreeDeleter
> CreateAdapterAddresses(
62 const AdapterInfo
* infos
) {
63 size_t num_adapters
= 0;
64 size_t num_addresses
= 0;
65 for (size_t i
= 0; infos
[i
].if_type
; ++i
) {
67 for (size_t j
= 0; !infos
[i
].dns_server_addresses
[j
].empty(); ++j
) {
72 size_t heap_size
= num_adapters
* sizeof(IP_ADAPTER_ADDRESSES
) +
73 num_addresses
* (sizeof(IP_ADAPTER_DNS_SERVER_ADDRESS
) +
74 sizeof(struct sockaddr_storage
));
75 scoped_ptr
<IP_ADAPTER_ADDRESSES
, base::FreeDeleter
> heap(
76 static_cast<IP_ADAPTER_ADDRESSES
*>(malloc(heap_size
)));
78 memset(heap
.get(), 0, heap_size
);
80 IP_ADAPTER_ADDRESSES
* adapters
= heap
.get();
81 IP_ADAPTER_DNS_SERVER_ADDRESS
* addresses
=
82 reinterpret_cast<IP_ADAPTER_DNS_SERVER_ADDRESS
*>(adapters
+ num_adapters
);
83 struct sockaddr_storage
* storage
=
84 reinterpret_cast<struct sockaddr_storage
*>(addresses
+ num_addresses
);
86 for (size_t i
= 0; i
< num_adapters
; ++i
) {
87 const AdapterInfo
& info
= infos
[i
];
88 IP_ADAPTER_ADDRESSES
* adapter
= adapters
+ i
;
89 if (i
+ 1 < num_adapters
)
90 adapter
->Next
= adapter
+ 1;
91 adapter
->IfType
= info
.if_type
;
92 adapter
->OperStatus
= info
.oper_status
;
93 adapter
->DnsSuffix
= const_cast<PWCHAR
>(info
.dns_suffix
);
94 IP_ADAPTER_DNS_SERVER_ADDRESS
* address
= NULL
;
95 for (size_t j
= 0; !info
.dns_server_addresses
[j
].empty(); ++j
) {
98 address
= adapter
->FirstDnsServerAddress
= addresses
+ num_addresses
;
100 // Note that |address| is moving backwards.
101 address
= address
->Next
= address
- 1;
104 CHECK(ParseIPLiteralToNumber(info
.dns_server_addresses
[j
], &ip
));
105 IPEndPoint ipe
= IPEndPoint(ip
, info
.ports
[j
]);
106 address
->Address
.lpSockaddr
=
107 reinterpret_cast<LPSOCKADDR
>(storage
+ num_addresses
);
108 socklen_t length
= sizeof(struct sockaddr_storage
);
109 CHECK(ipe
.ToSockAddr(address
->Address
.lpSockaddr
, &length
));
110 address
->Address
.iSockaddrLength
= static_cast<int>(length
);
117 TEST(DnsConfigServiceWinTest
, ConvertAdapterAddresses
) {
118 // Check nameservers and connection-specific suffix.
119 const struct TestCase
{
120 AdapterInfo input_adapters
[4]; // |if_type| == 0 indicates end.
121 std::string expected_nameservers
[4]; // Empty string indicates end.
122 std::string expected_suffix
;
123 uint16 expected_ports
[4];
125 { // Ignore loopback and inactive adapters.
127 { IF_TYPE_SOFTWARE_LOOPBACK
, IfOperStatusUp
, L
"funnyloop",
129 { IF_TYPE_FASTETHER
, IfOperStatusDormant
, L
"example.com",
131 { IF_TYPE_USB
, IfOperStatusUp
, L
"chromium.org",
132 { "10.0.0.10", "2001:FFFF::1111" } },
135 { "10.0.0.10", "2001:FFFF::1111" },
138 { // Respect configured ports.
140 { IF_TYPE_USB
, IfOperStatusUp
, L
"chromium.org",
141 { "10.0.0.10", "2001:FFFF::1111" }, { 1024, 24 } },
144 { "10.0.0.10", "2001:FFFF::1111" },
148 { // Use the preferred adapter (first in binding order) and filter
149 // stateless DNS discovery addresses.
151 { IF_TYPE_SOFTWARE_LOOPBACK
, IfOperStatusUp
, L
"funnyloop",
153 { IF_TYPE_FASTETHER
, IfOperStatusUp
, L
"example.com",
154 { "1.0.0.1", "fec0:0:0:ffff::2", "8.8.8.8" } },
155 { IF_TYPE_USB
, IfOperStatusUp
, L
"chromium.org",
156 { "10.0.0.10", "2001:FFFF::1111" } },
159 { "1.0.0.1", "8.8.8.8" },
162 { // No usable adapters.
164 { IF_TYPE_SOFTWARE_LOOPBACK
, IfOperStatusUp
, L
"localhost",
166 { IF_TYPE_FASTETHER
, IfOperStatusDormant
, L
"example.com",
168 { IF_TYPE_USB
, IfOperStatusUp
, L
"chromium.org" },
174 for (size_t i
= 0; i
< arraysize(cases
); ++i
) {
175 const TestCase
& t
= cases
[i
];
176 internal::DnsSystemSettings settings
= {
177 CreateAdapterAddresses(t
.input_adapters
),
178 // Default settings for the rest.
180 std::vector
<IPEndPoint
> expected_nameservers
;
181 for (size_t j
= 0; !t
.expected_nameservers
[j
].empty(); ++j
) {
183 ASSERT_TRUE(ParseIPLiteralToNumber(t
.expected_nameservers
[j
], &ip
));
184 uint16 port
= t
.expected_ports
[j
];
186 port
= dns_protocol::kDefaultPort
;
187 expected_nameservers
.push_back(IPEndPoint(ip
, port
));
191 internal::ConfigParseWinResult result
=
192 internal::ConvertSettingsToDnsConfig(settings
, &config
);
193 internal::ConfigParseWinResult expected_result
=
194 expected_nameservers
.empty() ? internal::CONFIG_PARSE_WIN_NO_NAMESERVERS
195 : internal::CONFIG_PARSE_WIN_OK
;
196 EXPECT_EQ(expected_result
, result
);
197 EXPECT_EQ(expected_nameservers
, config
.nameservers
);
198 if (result
== internal::CONFIG_PARSE_WIN_OK
) {
199 ASSERT_EQ(1u, config
.search
.size());
200 EXPECT_EQ(t
.expected_suffix
, config
.search
[0]);
205 TEST(DnsConfigServiceWinTest
, ConvertSuffixSearch
) {
206 AdapterInfo infos
[2] = {
207 { IF_TYPE_USB
, IfOperStatusUp
, L
"connection.suffix", { "1.0.0.1" } },
211 const struct TestCase
{
212 internal::DnsSystemSettings input_settings
;
213 std::string expected_search
[5];
215 { // Policy SearchList override.
217 CreateAdapterAddresses(infos
),
218 { true, L
"policy.searchlist.a,policy.searchlist.b" },
219 { true, L
"tcpip.searchlist.a,tcpip.searchlist.b" },
220 { true, L
"tcpip.domain" },
221 { true, L
"primary.dns.suffix" },
223 { "policy.searchlist.a", "policy.searchlist.b" },
225 { // User-specified SearchList override.
227 CreateAdapterAddresses(infos
),
229 { true, L
"tcpip.searchlist.a,tcpip.searchlist.b" },
230 { true, L
"tcpip.domain" },
231 { true, L
"primary.dns.suffix" },
233 { "tcpip.searchlist.a", "tcpip.searchlist.b" },
235 { // Void SearchList. Using tcpip.domain
237 CreateAdapterAddresses(infos
),
238 { true, L
",bad.searchlist,parsed.as.empty" },
239 { true, L
"tcpip.searchlist,good.but.overridden" },
240 { true, L
"tcpip.domain" },
243 { "tcpip.domain", "connection.suffix" },
245 { // Void SearchList. Using primary.dns.suffix
247 CreateAdapterAddresses(infos
),
248 { true, L
",bad.searchlist,parsed.as.empty" },
249 { true, L
"tcpip.searchlist,good.but.overridden" },
250 { true, L
"tcpip.domain" },
251 { true, L
"primary.dns.suffix" },
253 { "primary.dns.suffix", "connection.suffix" },
255 { // Void SearchList. Using tcpip.domain when primary.dns.suffix is empty
257 CreateAdapterAddresses(infos
),
258 { true, L
",bad.searchlist,parsed.as.empty" },
259 { true, L
"tcpip.searchlist,good.but.overridden" },
260 { true, L
"tcpip.domain" },
263 { "tcpip.domain", "connection.suffix" },
265 { // Void SearchList. Using tcpip.domain when primary.dns.suffix is NULL
267 CreateAdapterAddresses(infos
),
268 { true, L
",bad.searchlist,parsed.as.empty" },
269 { true, L
"tcpip.searchlist,good.but.overridden" },
270 { true, L
"tcpip.domain" },
273 { "tcpip.domain", "connection.suffix" },
275 { // No primary suffix. Devolution does not matter.
277 CreateAdapterAddresses(infos
),
282 { { true, 1 }, { true, 2 } },
284 { "connection.suffix" },
286 { // Devolution enabled by policy, level by dnscache.
288 CreateAdapterAddresses(infos
),
291 { true, L
"a.b.c.d.e" },
293 { { true, 1 }, { false } }, // policy_devolution: enabled, level
294 { { true, 0 }, { true, 3 } }, // dnscache_devolution
295 { { true, 0 }, { true, 1 } }, // tcpip_devolution
297 { "a.b.c.d.e", "connection.suffix", "b.c.d.e", "c.d.e" },
299 { // Devolution enabled by dnscache, level by policy.
301 CreateAdapterAddresses(infos
),
304 { true, L
"a.b.c.d.e" },
305 { true, L
"f.g.i.l.j" },
306 { { false }, { true, 4 } },
307 { { true, 1 }, { false } },
308 { { true, 0 }, { true, 3 } },
310 { "f.g.i.l.j", "connection.suffix", "g.i.l.j" },
312 { // Devolution enabled by default.
314 CreateAdapterAddresses(infos
),
317 { true, L
"a.b.c.d.e" },
319 { { false }, { false } },
320 { { false }, { true, 3 } },
321 { { false }, { true, 1 } },
323 { "a.b.c.d.e", "connection.suffix", "b.c.d.e", "c.d.e" },
325 { // Devolution enabled at level = 2, but nothing to devolve.
327 CreateAdapterAddresses(infos
),
332 { { false }, { false } },
333 { { false }, { true, 2 } },
334 { { false }, { true, 2 } },
336 { "a.b", "connection.suffix" },
338 { // Devolution disabled when no explicit level.
339 // Windows XP and Vista use a default level = 2, but we don't.
341 CreateAdapterAddresses(infos
),
344 { true, L
"a.b.c.d.e" },
346 { { true, 1 }, { false } },
347 { { true, 1 }, { false } },
348 { { true, 1 }, { false } },
350 { "a.b.c.d.e", "connection.suffix" },
352 { // Devolution disabled by policy level.
354 CreateAdapterAddresses(infos
),
357 { true, L
"a.b.c.d.e" },
359 { { false }, { true, 1 } },
360 { { true, 1 }, { true, 3 } },
361 { { true, 1 }, { true, 4 } },
363 { "a.b.c.d.e", "connection.suffix" },
365 { // Devolution disabled by user setting.
367 CreateAdapterAddresses(infos
),
370 { true, L
"a.b.c.d.e" },
372 { { false }, { true, 3 } },
373 { { false }, { true, 3 } },
374 { { true, 0 }, { true, 3 } },
376 { "a.b.c.d.e", "connection.suffix" },
380 for (size_t i
= 0; i
< arraysize(cases
); ++i
) {
381 const TestCase
& t
= cases
[i
];
383 EXPECT_EQ(internal::CONFIG_PARSE_WIN_OK
,
384 internal::ConvertSettingsToDnsConfig(t
.input_settings
, &config
));
385 std::vector
<std::string
> expected_search
;
386 for (size_t j
= 0; !t
.expected_search
[j
].empty(); ++j
) {
387 expected_search
.push_back(t
.expected_search
[j
]);
389 EXPECT_EQ(expected_search
, config
.search
);
393 TEST(DnsConfigServiceWinTest
, AppendToMultiLabelName
) {
394 AdapterInfo infos
[2] = {
395 { IF_TYPE_USB
, IfOperStatusUp
, L
"connection.suffix", { "1.0.0.1" } },
399 // The default setting was true pre-Vista.
400 bool default_value
= (base::win::GetVersion() < base::win::VERSION_VISTA
);
402 const struct TestCase
{
403 internal::DnsSystemSettings::RegDword input
;
404 bool expected_output
;
406 { { true, 0 }, false },
407 { { true, 1 }, true },
408 { { false, 0 }, default_value
},
411 for (size_t i
= 0; i
< arraysize(cases
); ++i
) {
412 const TestCase
& t
= cases
[i
];
413 internal::DnsSystemSettings settings
= {
414 CreateAdapterAddresses(infos
),
415 { false }, { false }, { false }, { false },
416 { { false }, { false } },
417 { { false }, { false } },
418 { { false }, { false } },
422 EXPECT_EQ(internal::CONFIG_PARSE_WIN_OK
,
423 internal::ConvertSettingsToDnsConfig(settings
, &config
));
424 EXPECT_EQ(t
.expected_output
, config
.append_to_multi_label_name
);
428 // Setting have_name_resolution_policy_table should set unhandled_options.
429 TEST(DnsConfigServiceWinTest
, HaveNRPT
) {
430 AdapterInfo infos
[2] = {
431 { IF_TYPE_USB
, IfOperStatusUp
, L
"connection.suffix", { "1.0.0.1" } },
435 const struct TestCase
{
437 bool unhandled_options
;
438 internal::ConfigParseWinResult result
;
440 { false, false, internal::CONFIG_PARSE_WIN_OK
},
441 { true, true, internal::CONFIG_PARSE_WIN_UNHANDLED_OPTIONS
},
444 for (size_t i
= 0; i
< arraysize(cases
); ++i
) {
445 const TestCase
& t
= cases
[i
];
446 internal::DnsSystemSettings settings
= {
447 CreateAdapterAddresses(infos
),
448 { false }, { false }, { false }, { false },
449 { { false }, { false } },
450 { { false }, { false } },
451 { { false }, { false } },
457 internal::ConvertSettingsToDnsConfig(settings
, &config
));
458 EXPECT_EQ(t
.unhandled_options
, config
.unhandled_options
);
459 EXPECT_EQ(t
.have_nrpt
, config
.use_local_ipv6
);