blob: 38fe7042910e332eb30095b94c12857f71c1c411 [file] [log] [blame]
// Copyright (c) 2012 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/dns/dns_config_service_win.h"
#include "base/logging.h"
#include "base/memory/free_deleter.h"
#include "net/base/ip_address.h"
#include "net/base/ip_endpoint.h"
#include "net/dns/dns_protocol.h"
#include "starboard/memory.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace net {
namespace {
TEST(DnsConfigServiceWinTest, ParseSearchList) {
const struct TestCase {
const wchar_t* input;
const char* output[4]; // NULL-terminated, empty if expected false
} cases[] = {
{ L"chromium.org", { "chromium.org", NULL } },
{ L"chromium.org,org", { "chromium.org", "org", NULL } },
// Empty suffixes terminate the list
{ L"crbug.com,com,,org", { "crbug.com", "com", NULL } },
// IDN are converted to punycode
{ L"\u017c\xf3\u0142ta.pi\u0119\u015b\u0107.pl,pl",
{ "xn--ta-4ja03asj.xn--pi-wla5e0q.pl", "pl", NULL } },
// Empty search list is invalid
{ L"", { NULL } },
{ L",,", { NULL } },
};
for (const auto& t : cases) {
std::vector<std::string> actual_output, expected_output;
actual_output.push_back("UNSET");
for (const char* const* output = t.output; *output; ++output) {
expected_output.push_back(*output);
}
bool result = internal::ParseSearchList(t.input, &actual_output);
if (!expected_output.empty()) {
EXPECT_TRUE(result);
EXPECT_EQ(expected_output, actual_output);
} else {
EXPECT_FALSE(result) << "Unexpected parse success on " << t.input;
}
}
}
struct AdapterInfo {
IFTYPE if_type;
IF_OPER_STATUS oper_status;
const WCHAR* dns_suffix;
std::string dns_server_addresses[4]; // Empty string indicates end.
uint16_t ports[4];
};
std::unique_ptr<IP_ADAPTER_ADDRESSES, base::FreeDeleter> CreateAdapterAddresses(
const AdapterInfo* infos) {
size_t num_adapters = 0;
size_t num_addresses = 0;
for (size_t i = 0; infos[i].if_type; ++i) {
++num_adapters;
for (size_t j = 0; !infos[i].dns_server_addresses[j].empty(); ++j) {
++num_addresses;
}
}
size_t heap_size = num_adapters * sizeof(IP_ADAPTER_ADDRESSES) +
num_addresses * (sizeof(IP_ADAPTER_DNS_SERVER_ADDRESS) +
sizeof(struct sockaddr_storage));
std::unique_ptr<IP_ADAPTER_ADDRESSES, base::FreeDeleter> heap(
static_cast<IP_ADAPTER_ADDRESSES*>(SbMemoryAllocate(heap_size)));
CHECK(heap.get());
SbMemorySet(heap.get(), 0, heap_size);
IP_ADAPTER_ADDRESSES* adapters = heap.get();
IP_ADAPTER_DNS_SERVER_ADDRESS* addresses =
reinterpret_cast<IP_ADAPTER_DNS_SERVER_ADDRESS*>(adapters + num_adapters);
struct sockaddr_storage* storage =
reinterpret_cast<struct sockaddr_storage*>(addresses + num_addresses);
for (size_t i = 0; i < num_adapters; ++i) {
const AdapterInfo& info = infos[i];
IP_ADAPTER_ADDRESSES* adapter = adapters + i;
if (i + 1 < num_adapters)
adapter->Next = adapter + 1;
adapter->IfType = info.if_type;
adapter->OperStatus = info.oper_status;
adapter->DnsSuffix = const_cast<PWCHAR>(info.dns_suffix);
IP_ADAPTER_DNS_SERVER_ADDRESS* address = NULL;
for (size_t j = 0; !info.dns_server_addresses[j].empty(); ++j) {
--num_addresses;
if (j == 0) {
address = adapter->FirstDnsServerAddress = addresses + num_addresses;
} else {
// Note that |address| is moving backwards.
address = address->Next = address - 1;
}
IPAddress ip;
CHECK(ip.AssignFromIPLiteral(info.dns_server_addresses[j]));
IPEndPoint ipe = IPEndPoint(ip, info.ports[j]);
address->Address.lpSockaddr =
reinterpret_cast<LPSOCKADDR>(storage + num_addresses);
socklen_t length = sizeof(struct sockaddr_storage);
CHECK(ipe.ToSockAddr(address->Address.lpSockaddr, &length));
address->Address.iSockaddrLength = static_cast<int>(length);
}
}
return heap;
}
TEST(DnsConfigServiceWinTest, ConvertAdapterAddresses) {
// Check nameservers and connection-specific suffix.
const struct TestCase {
AdapterInfo input_adapters[4]; // |if_type| == 0 indicates end.
std::string expected_nameservers[4]; // Empty string indicates end.
std::string expected_suffix;
uint16_t expected_ports[4];
} cases[] = {
{ // Ignore loopback and inactive adapters.
{
{ IF_TYPE_SOFTWARE_LOOPBACK, IfOperStatusUp, L"funnyloop",
{ "2.0.0.2" } },
{ IF_TYPE_FASTETHER, IfOperStatusDormant, L"example.com",
{ "1.0.0.1" } },
{ IF_TYPE_USB, IfOperStatusUp, L"chromium.org",
{ "10.0.0.10", "2001:FFFF::1111" } },
{ 0 },
},
{ "10.0.0.10", "2001:FFFF::1111" },
"chromium.org",
},
{ // Respect configured ports.
{
{ IF_TYPE_USB, IfOperStatusUp, L"chromium.org",
{ "10.0.0.10", "2001:FFFF::1111" }, { 1024, 24 } },
{ 0 },
},
{ "10.0.0.10", "2001:FFFF::1111" },
"chromium.org",
{ 1024, 24 },
},
{ // Use the preferred adapter (first in binding order) and filter
// stateless DNS discovery addresses.
{
{ IF_TYPE_SOFTWARE_LOOPBACK, IfOperStatusUp, L"funnyloop",
{ "2.0.0.2" } },
{ IF_TYPE_FASTETHER, IfOperStatusUp, L"example.com",
{ "1.0.0.1", "fec0:0:0:ffff::2", "8.8.8.8" } },
{ IF_TYPE_USB, IfOperStatusUp, L"chromium.org",
{ "10.0.0.10", "2001:FFFF::1111" } },
{ 0 },
},
{ "1.0.0.1", "8.8.8.8" },
"example.com",
},
{ // No usable adapters.
{
{ IF_TYPE_SOFTWARE_LOOPBACK, IfOperStatusUp, L"localhost",
{ "2.0.0.2" } },
{ IF_TYPE_FASTETHER, IfOperStatusDormant, L"example.com",
{ "1.0.0.1" } },
{ IF_TYPE_USB, IfOperStatusUp, L"chromium.org" },
{ 0 },
},
},
};
for (const auto& t : cases) {
internal::DnsSystemSettings settings;
settings.addresses = CreateAdapterAddresses(t.input_adapters);
// Default settings for the rest.
std::vector<IPEndPoint> expected_nameservers;
for (size_t j = 0; !t.expected_nameservers[j].empty(); ++j) {
IPAddress ip;
ASSERT_TRUE(ip.AssignFromIPLiteral(t.expected_nameservers[j]));
uint16_t port = t.expected_ports[j];
if (!port)
port = dns_protocol::kDefaultPort;
expected_nameservers.push_back(IPEndPoint(ip, port));
}
DnsConfig config;
internal::ConfigParseWinResult result =
internal::ConvertSettingsToDnsConfig(settings, &config);
internal::ConfigParseWinResult expected_result =
expected_nameservers.empty() ? internal::CONFIG_PARSE_WIN_NO_NAMESERVERS
: internal::CONFIG_PARSE_WIN_OK;
EXPECT_EQ(expected_result, result);
EXPECT_EQ(expected_nameservers, config.nameservers);
if (result == internal::CONFIG_PARSE_WIN_OK) {
ASSERT_EQ(1u, config.search.size());
EXPECT_EQ(t.expected_suffix, config.search[0]);
}
}
}
TEST(DnsConfigServiceWinTest, ConvertSuffixSearch) {
AdapterInfo infos[2] = {
{ IF_TYPE_USB, IfOperStatusUp, L"connection.suffix", { "1.0.0.1" } },
{ 0 },
};
const struct TestCase {
struct {
internal::DnsSystemSettings::RegString policy_search_list;
internal::DnsSystemSettings::RegString tcpip_search_list;
internal::DnsSystemSettings::RegString tcpip_domain;
internal::DnsSystemSettings::RegString primary_dns_suffix;
internal::DnsSystemSettings::DevolutionSetting policy_devolution;
internal::DnsSystemSettings::DevolutionSetting dnscache_devolution;
internal::DnsSystemSettings::DevolutionSetting tcpip_devolution;
} input_settings;
std::string expected_search[5];
} cases[] = {
{ // Policy SearchList override.
{
{ true, L"policy.searchlist.a,policy.searchlist.b" },
{ true, L"tcpip.searchlist.a,tcpip.searchlist.b" },
{ true, L"tcpip.domain" },
{ true, L"primary.dns.suffix" },
},
{ "policy.searchlist.a", "policy.searchlist.b" },
},
{ // User-specified SearchList override.
{
{ false },
{ true, L"tcpip.searchlist.a,tcpip.searchlist.b" },
{ true, L"tcpip.domain" },
{ true, L"primary.dns.suffix" },
},
{ "tcpip.searchlist.a", "tcpip.searchlist.b" },
},
{ // Void SearchList. Using tcpip.domain
{
{ true, L",bad.searchlist,parsed.as.empty" },
{ true, L"tcpip.searchlist,good.but.overridden" },
{ true, L"tcpip.domain" },
{ false },
},
{ "tcpip.domain", "connection.suffix" },
},
{ // Void SearchList. Using primary.dns.suffix
{
{ true, L",bad.searchlist,parsed.as.empty" },
{ true, L"tcpip.searchlist,good.but.overridden" },
{ true, L"tcpip.domain" },
{ true, L"primary.dns.suffix" },
},
{ "primary.dns.suffix", "connection.suffix" },
},
{ // Void SearchList. Using tcpip.domain when primary.dns.suffix is empty
{
{ true, L",bad.searchlist,parsed.as.empty" },
{ true, L"tcpip.searchlist,good.but.overridden" },
{ true, L"tcpip.domain" },
{ true, L"" },
},
{ "tcpip.domain", "connection.suffix" },
},
{ // Void SearchList. Using tcpip.domain when primary.dns.suffix is NULL
{
{ true, L",bad.searchlist,parsed.as.empty" },
{ true, L"tcpip.searchlist,good.but.overridden" },
{ true, L"tcpip.domain" },
{ true },
},
{ "tcpip.domain", "connection.suffix" },
},
{ // No primary suffix. Devolution does not matter.
{
{ false },
{ false },
{ true },
{ true },
{ { true, 1 }, { true, 2 } },
},
{ "connection.suffix" },
},
{ // Devolution enabled by policy, level by dnscache.
{
{ false },
{ false },
{ true, L"a.b.c.d.e" },
{ false },
{ { true, 1 }, { false } }, // policy_devolution: enabled, level
{ { true, 0 }, { true, 3 } }, // dnscache_devolution
{ { true, 0 }, { true, 1 } }, // tcpip_devolution
},
{ "a.b.c.d.e", "connection.suffix", "b.c.d.e", "c.d.e" },
},
{ // Devolution enabled by dnscache, level by policy.
{
{ false },
{ false },
{ true, L"a.b.c.d.e" },
{ true, L"f.g.i.l.j" },
{ { false }, { true, 4 } },
{ { true, 1 }, { false } },
{ { true, 0 }, { true, 3 } },
},
{ "f.g.i.l.j", "connection.suffix", "g.i.l.j" },
},
{ // Devolution enabled by default.
{
{ false },
{ false },
{ true, L"a.b.c.d.e" },
{ false },
{ { false }, { false } },
{ { false }, { true, 3 } },
{ { false }, { true, 1 } },
},
{ "a.b.c.d.e", "connection.suffix", "b.c.d.e", "c.d.e" },
},
{ // Devolution enabled at level = 2, but nothing to devolve.
{
{ false },
{ false },
{ true, L"a.b" },
{ false },
{ { false }, { false } },
{ { false }, { true, 2 } },
{ { false }, { true, 2 } },
},
{ "a.b", "connection.suffix" },
},
{ // Devolution disabled when no explicit level.
{
{ false },
{ false },
{ true, L"a.b.c.d.e" },
{ false },
{ { true, 1 }, { false } },
{ { true, 1 }, { false } },
{ { true, 1 }, { false } },
},
{ "a.b.c.d.e", "connection.suffix" },
},
{ // Devolution disabled by policy level.
{
{ false },
{ false },
{ true, L"a.b.c.d.e" },
{ false },
{ { false }, { true, 1 } },
{ { true, 1 }, { true, 3 } },
{ { true, 1 }, { true, 4 } },
},
{ "a.b.c.d.e", "connection.suffix" },
},
{ // Devolution disabled by user setting.
{
{ false },
{ false },
{ true, L"a.b.c.d.e" },
{ false },
{ { false }, { true, 3 } },
{ { false }, { true, 3 } },
{ { true, 0 }, { true, 3 } },
},
{ "a.b.c.d.e", "connection.suffix" },
},
};
for (auto& t : cases) {
internal::DnsSystemSettings settings;
settings.addresses = CreateAdapterAddresses(infos);
settings.policy_search_list = t.input_settings.policy_search_list;
settings.tcpip_search_list = t.input_settings.tcpip_search_list;
settings.tcpip_domain = t.input_settings.tcpip_domain;
settings.primary_dns_suffix = t.input_settings.primary_dns_suffix;
settings.policy_devolution = t.input_settings.policy_devolution;
settings.dnscache_devolution = t.input_settings.dnscache_devolution;
settings.tcpip_devolution = t.input_settings.tcpip_devolution;
DnsConfig config;
EXPECT_EQ(internal::CONFIG_PARSE_WIN_OK,
internal::ConvertSettingsToDnsConfig(settings, &config));
std::vector<std::string> expected_search;
for (size_t j = 0; !t.expected_search[j].empty(); ++j) {
expected_search.push_back(t.expected_search[j]);
}
EXPECT_EQ(expected_search, config.search);
}
}
TEST(DnsConfigServiceWinTest, AppendToMultiLabelName) {
AdapterInfo infos[2] = {
{ IF_TYPE_USB, IfOperStatusUp, L"connection.suffix", { "1.0.0.1" } },
{ 0 },
};
const struct TestCase {
internal::DnsSystemSettings::RegDword input;
bool expected_output;
} cases[] = {
{{true, 0}, false}, {{true, 1}, true}, {{false, 0}, false},
};
for (const auto& t : cases) {
internal::DnsSystemSettings settings;
settings.addresses = CreateAdapterAddresses(infos);
settings.append_to_multi_label_name = t.input;
DnsConfig config;
EXPECT_EQ(internal::CONFIG_PARSE_WIN_OK,
internal::ConvertSettingsToDnsConfig(settings, &config));
EXPECT_EQ(t.expected_output, config.append_to_multi_label_name);
}
}
// Setting have_name_resolution_policy_table should set unhandled_options.
TEST(DnsConfigServiceWinTest, HaveNRPT) {
AdapterInfo infos[2] = {
{ IF_TYPE_USB, IfOperStatusUp, L"connection.suffix", { "1.0.0.1" } },
{ 0 },
};
const struct TestCase {
bool have_nrpt;
bool unhandled_options;
internal::ConfigParseWinResult result;
} cases[] = {
{ false, false, internal::CONFIG_PARSE_WIN_OK },
{ true, true, internal::CONFIG_PARSE_WIN_UNHANDLED_OPTIONS },
};
for (const auto& t : cases) {
internal::DnsSystemSettings settings;
settings.addresses = CreateAdapterAddresses(infos);
settings.have_name_resolution_policy = t.have_nrpt;
DnsConfig config;
EXPECT_EQ(t.result,
internal::ConvertSettingsToDnsConfig(settings, &config));
EXPECT_EQ(t.unhandled_options, config.unhandled_options);
EXPECT_EQ(t.have_nrpt, config.use_local_ipv6);
}
}
} // namespace
} // namespace net