blob: ce19120fe12c81b47169e6ae55870846e0798313 [file] [log] [blame]
/*
* libjingle
* Copyright 2004 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "talk/base/network.h"
#include <vector>
#if defined(POSIX)
#include <sys/types.h>
#ifndef ANDROID
#include <ifaddrs.h>
#else
#include "talk/base/ifaddrs-android.h"
#endif
#endif
#include "talk/base/gunit.h"
#ifdef WIN32
#include "talk/base/logging.h" // For LOG_GLE
#endif
namespace talk_base {
class NetworkTest : public testing::Test, public sigslot::has_slots<> {
public:
NetworkTest() : callback_called_(false) {}
void OnNetworksChanged() {
callback_called_ = true;
}
void MergeNetworkList(BasicNetworkManager& network_manager,
const NetworkManager::NetworkList& list,
bool* changed ) {
network_manager.MergeNetworkList(list, changed);
}
bool IsIgnoredNetwork(BasicNetworkManager& network_manager,
const Network& network) {
return network_manager.IsIgnoredNetwork(network);
}
NetworkManager::NetworkList GetNetworks(
const BasicNetworkManager& network_manager, bool include_ignored) {
NetworkManager::NetworkList list;
network_manager.CreateNetworks(include_ignored, &list);
return list;
}
#if defined(POSIX)
// Separated from CreateNetworks for tests.
static void CallConvertIfAddrs(const BasicNetworkManager& network_manager,
struct ifaddrs* interfaces,
bool include_ignored,
NetworkManager::NetworkList* networks) {
network_manager.ConvertIfAddrs(interfaces, include_ignored, networks);
}
#endif // defined(POSIX)
protected:
bool callback_called_;
};
// Test that the Network ctor works properly.
TEST_F(NetworkTest, TestNetworkConstruct) {
Network ipv4_network1("test_eth0", "Test Network Adapter 1",
IPAddress(0x12345600U), 24);
EXPECT_EQ("test_eth0", ipv4_network1.name());
EXPECT_EQ("Test Network Adapter 1", ipv4_network1.description());
EXPECT_EQ(IPAddress(0x12345600U), ipv4_network1.prefix());
EXPECT_EQ(24, ipv4_network1.prefix_length());
EXPECT_FALSE(ipv4_network1.ignored());
}
// Tests that our ignore function works properly.
TEST_F(NetworkTest, TestNetworkIgnore) {
Network ipv4_network1("test_eth0", "Test Network Adapter 1",
IPAddress(0x12345600U), 24);
Network ipv4_network2("test_eth1", "Test Network Adapter 2",
IPAddress(0x00010000U), 16);
BasicNetworkManager network_manager;
EXPECT_FALSE(IsIgnoredNetwork(network_manager, ipv4_network1));
EXPECT_TRUE(IsIgnoredNetwork(network_manager, ipv4_network2));
}
TEST_F(NetworkTest, TestIgnoreList) {
Network ignore_me("ignore_me", "Ignore me please!",
IPAddress(0x12345600U), 24);
Network include_me("include_me", "Include me please!",
IPAddress(0x12345600U), 24);
BasicNetworkManager network_manager;
EXPECT_FALSE(IsIgnoredNetwork(network_manager, ignore_me));
EXPECT_FALSE(IsIgnoredNetwork(network_manager, include_me));
std::vector<std::string> ignore_list;
ignore_list.push_back("ignore_me");
network_manager.set_network_ignore_list(ignore_list);
EXPECT_TRUE(IsIgnoredNetwork(network_manager, ignore_me));
EXPECT_FALSE(IsIgnoredNetwork(network_manager, include_me));
}
TEST_F(NetworkTest, TestCreateNetworks) {
BasicNetworkManager manager;
NetworkManager::NetworkList result = GetNetworks(manager, true);
// We should be able to bind to any addresses we find.
NetworkManager::NetworkList::iterator it;
for (it = result.begin();
it != result.end();
++it) {
sockaddr_storage storage;
memset(&storage, 0, sizeof(storage));
IPAddress ip = (*it)->ip();
SocketAddress bindaddress(ip, 0);
bindaddress.SetScopeID((*it)->scope_id());
// TODO(thaloun): Use talk_base::AsyncSocket once it supports IPv6.
int fd = static_cast<int>(socket(ip.family(), SOCK_STREAM, IPPROTO_TCP));
if (fd > 0) {
size_t ipsize = bindaddress.ToSockAddrStorage(&storage);
EXPECT_GE(ipsize, 0U);
int success = ::bind(fd,
reinterpret_cast<sockaddr*>(&storage),
static_cast<int>(ipsize));
#ifdef WIN32
if (success) LOG_GLE(LS_ERROR) << "Socket bind failed.";
#endif
EXPECT_EQ(0, success);
#ifdef WIN32
closesocket(fd);
#else
close(fd);
#endif
}
delete (*it);
}
}
// Test that UpdateNetworks succeeds.
TEST_F(NetworkTest, TestUpdateNetworks) {
BasicNetworkManager manager;
manager.SignalNetworksChanged.connect(
static_cast<NetworkTest*>(this), &NetworkTest::OnNetworksChanged);
manager.StartUpdating();
Thread::Current()->ProcessMessages(0);
EXPECT_TRUE(callback_called_);
callback_called_ = false;
// Callback should be triggered immediately when StartUpdating
// is called, after network update signal is already sent.
manager.StartUpdating();
EXPECT_TRUE(manager.started());
Thread::Current()->ProcessMessages(0);
EXPECT_TRUE(callback_called_);
manager.StopUpdating();
EXPECT_TRUE(manager.started());
manager.StopUpdating();
EXPECT_FALSE(manager.started());
manager.StopUpdating();
EXPECT_FALSE(manager.started());
callback_called_ = false;
// Callback should be triggered immediately after StartUpdating is called
// when start_count_ is reset to 0.
manager.StartUpdating();
Thread::Current()->ProcessMessages(0);
EXPECT_TRUE(callback_called_);
}
// Verify that MergeNetworkList() merges network lists properly.
TEST_F(NetworkTest, TestBasicMergeNetworkList) {
Network ipv4_network1("test_eth0", "Test Network Adapter 1",
IPAddress(0x12345600U), 24);
Network ipv4_network2("test_eth1", "Test Network Adapter 2",
IPAddress(0x00010000U), 16);
ipv4_network1.AddIP(IPAddress(0x12345678));
ipv4_network2.AddIP(IPAddress(0x00010004));
BasicNetworkManager manager;
// Add ipv4_network1 to the list of networks.
NetworkManager::NetworkList list;
list.push_back(new Network(ipv4_network1));
bool changed;
MergeNetworkList(manager, list, &changed);
EXPECT_TRUE(changed);
list.clear();
manager.GetNetworks(&list);
EXPECT_EQ(1U, list.size());
EXPECT_EQ(ipv4_network1.ToString(), list[0]->ToString());
Network* net1 = list[0];
list.clear();
// Replace ipv4_network1 with ipv4_network2.
list.push_back(new Network(ipv4_network2));
MergeNetworkList(manager, list, &changed);
EXPECT_TRUE(changed);
list.clear();
manager.GetNetworks(&list);
EXPECT_EQ(1U, list.size());
EXPECT_EQ(ipv4_network2.ToString(), list[0]->ToString());
Network* net2 = list[0];
list.clear();
// Add Network2 back.
list.push_back(new Network(ipv4_network1));
list.push_back(new Network(ipv4_network2));
MergeNetworkList(manager, list, &changed);
EXPECT_TRUE(changed);
list.clear();
// Verify that we get previous instances of Network objects.
manager.GetNetworks(&list);
EXPECT_EQ(2U, list.size());
EXPECT_TRUE((net1 == list[0] && net2 == list[1]) ||
(net1 == list[1] && net2 == list[0]));
list.clear();
// Call MergeNetworkList() again and verify that we don't get update
// notification.
list.push_back(new Network(ipv4_network2));
list.push_back(new Network(ipv4_network1));
MergeNetworkList(manager, list, &changed);
EXPECT_FALSE(changed);
list.clear();
// Verify that we get previous instances of Network objects.
manager.GetNetworks(&list);
EXPECT_EQ(2U, list.size());
EXPECT_TRUE((net1 == list[0] && net2 == list[1]) ||
(net1 == list[1] && net2 == list[0]));
list.clear();
}
// Sets up some test IPv6 networks and appends them to list.
// Four networks are added - public and link local, for two interfaces.
void SetupNetworks(NetworkManager::NetworkList* list) {
IPAddress ip;
IPAddress prefix;
EXPECT_TRUE(IPFromString("fe80::1234:5678:abcd:ef12", &ip));
EXPECT_TRUE(IPFromString("fe80::", &prefix));
// First, fake link-locals.
Network ipv6_eth0_linklocalnetwork("test_eth0", "Test NetworkAdapter 1",
prefix, 64);
ipv6_eth0_linklocalnetwork.AddIP(ip);
EXPECT_TRUE(IPFromString("fe80::5678:abcd:ef12:3456", &ip));
Network ipv6_eth1_linklocalnetwork("test_eth1", "Test NetworkAdapter 2",
prefix, 64);
ipv6_eth1_linklocalnetwork.AddIP(ip);
// Public networks:
EXPECT_TRUE(IPFromString("2401:fa00:4:1000:be30:5bff:fee5:c3", &ip));
prefix = TruncateIP(ip, 64);
Network ipv6_eth0_publicnetwork1_ip1("test_eth0", "Test NetworkAdapter 1",
prefix, 64);
ipv6_eth0_publicnetwork1_ip1.AddIP(ip);
EXPECT_TRUE(IPFromString("2400:4030:1:2c00:be30:abcd:efab:cdef", &ip));
prefix = TruncateIP(ip, 64);
Network ipv6_eth1_publicnetwork1_ip1("test_eth1", "Test NetworkAdapter 1",
prefix, 64);
ipv6_eth1_publicnetwork1_ip1.AddIP(ip);
list->push_back(new Network(ipv6_eth0_linklocalnetwork));
list->push_back(new Network(ipv6_eth1_linklocalnetwork));
list->push_back(new Network(ipv6_eth0_publicnetwork1_ip1));
list->push_back(new Network(ipv6_eth1_publicnetwork1_ip1));
}
// Test that the basic network merging case works.
TEST_F(NetworkTest, TestIPv6MergeNetworkList) {
BasicNetworkManager manager;
manager.SignalNetworksChanged.connect(
static_cast<NetworkTest*>(this), &NetworkTest::OnNetworksChanged);
NetworkManager::NetworkList original_list;
SetupNetworks(&original_list);
bool changed = false;
MergeNetworkList(manager, original_list, &changed);
EXPECT_TRUE(changed);
NetworkManager::NetworkList list;
manager.GetNetworks(&list);
EXPECT_EQ(original_list.size(), list.size());
// Verify that the original members are in the merged list.
for (NetworkManager::NetworkList::iterator it = original_list.begin();
it != original_list.end(); ++it) {
EXPECT_NE(list.end(), std::find(list.begin(), list.end(), *it));
}
}
// Tests that when two network lists that describe the same set of networks are
// merged, that the changed callback is not called, and that the original
// objects remain in the result list.
TEST_F(NetworkTest, TestNoChangeMerge) {
BasicNetworkManager manager;
manager.SignalNetworksChanged.connect(
static_cast<NetworkTest*>(this), &NetworkTest::OnNetworksChanged);
NetworkManager::NetworkList original_list;
SetupNetworks(&original_list);
bool changed = false;
MergeNetworkList(manager, original_list, &changed);
EXPECT_TRUE(changed);
// Second list that describes the same networks but with new objects.
NetworkManager::NetworkList second_list;
SetupNetworks(&second_list);
changed = false;
MergeNetworkList(manager, second_list, &changed);
EXPECT_FALSE(changed);
NetworkManager::NetworkList resulting_list;
manager.GetNetworks(&resulting_list);
EXPECT_EQ(original_list.size(), resulting_list.size());
// Verify that the original members are in the merged list.
for (NetworkManager::NetworkList::iterator it = original_list.begin();
it != original_list.end(); ++it) {
EXPECT_NE(resulting_list.end(),
std::find(resulting_list.begin(), resulting_list.end(), *it));
}
// Doublecheck that the new networks aren't in the list.
for (NetworkManager::NetworkList::iterator it = second_list.begin();
it != second_list.end(); ++it) {
EXPECT_EQ(resulting_list.end(),
std::find(resulting_list.begin(), resulting_list.end(), *it));
}
}
// Test that we can merge a network that is the same as another network but with
// a different IP. The original network should remain in the list, but have its
// IP changed.
TEST_F(NetworkTest, MergeWithChangedIP) {
BasicNetworkManager manager;
manager.SignalNetworksChanged.connect(
static_cast<NetworkTest*>(this), &NetworkTest::OnNetworksChanged);
NetworkManager::NetworkList original_list;
SetupNetworks(&original_list);
// Make a network that we're going to change.
IPAddress ip;
EXPECT_TRUE(IPFromString("2401:fa01:4:1000:be30:faa:fee:faa", &ip));
IPAddress prefix = TruncateIP(ip, 64);
Network* network_to_change = new Network("test_eth0",
"Test Network Adapter 1",
prefix, 64);
Network* changed_network = new Network(*network_to_change);
network_to_change->AddIP(ip);
IPAddress changed_ip;
EXPECT_TRUE(IPFromString("2401:fa01:4:1000:be30:f00:f00:f00", &changed_ip));
changed_network->AddIP(changed_ip);
original_list.push_back(network_to_change);
bool changed = false;
MergeNetworkList(manager, original_list, &changed);
NetworkManager::NetworkList second_list;
SetupNetworks(&second_list);
second_list.push_back(changed_network);
changed = false;
MergeNetworkList(manager, second_list, &changed);
EXPECT_TRUE(changed);
NetworkManager::NetworkList list;
manager.GetNetworks(&list);
EXPECT_EQ(original_list.size(), list.size());
// Make sure the original network is still in the merged list.
EXPECT_NE(list.end(),
std::find(list.begin(), list.end(), network_to_change));
EXPECT_EQ(changed_ip, network_to_change->GetIPs().at(0));
}
// Testing a similar case to above, but checking that a network can be updated
// with additional IPs (not just a replacement).
TEST_F(NetworkTest, TestMultipleIPMergeNetworkList) {
BasicNetworkManager manager;
manager.SignalNetworksChanged.connect(
static_cast<NetworkTest*>(this), &NetworkTest::OnNetworksChanged);
NetworkManager::NetworkList original_list;
SetupNetworks(&original_list);
bool changed = false;
MergeNetworkList(manager, original_list, &changed);
EXPECT_TRUE(changed);
IPAddress ip;
IPAddress check_ip;
IPAddress prefix;
// Add a second IP to the public network on eth0 (2401:fa00:4:1000/64).
EXPECT_TRUE(IPFromString("2401:fa00:4:1000:be30:5bff:fee5:c6", &ip));
prefix = TruncateIP(ip, 64);
Network ipv6_eth0_publicnetwork1_ip2("test_eth0", "Test NetworkAdapter 1",
prefix, 64);
// This is the IP that already existed in the public network on eth0.
EXPECT_TRUE(IPFromString("2401:fa00:4:1000:be30:5bff:fee5:c3", &check_ip));
ipv6_eth0_publicnetwork1_ip2.AddIP(ip);
original_list.push_back(new Network(ipv6_eth0_publicnetwork1_ip2));
changed = false;
MergeNetworkList(manager, original_list, &changed);
EXPECT_TRUE(changed);
// There should still be four networks.
NetworkManager::NetworkList list;
manager.GetNetworks(&list);
EXPECT_EQ(4U, list.size());
// Check the gathered IPs.
int matchcount = 0;
for (NetworkManager::NetworkList::iterator it = list.begin();
it != list.end(); ++it) {
if ((*it)->ToString() == original_list[2]->ToString()) {
++matchcount;
EXPECT_EQ(1, matchcount);
// This should be the same network object as before.
EXPECT_EQ((*it), original_list[2]);
// But with two addresses now.
EXPECT_EQ(2U, (*it)->GetIPs().size());
EXPECT_NE((*it)->GetIPs().end(),
std::find((*it)->GetIPs().begin(),
(*it)->GetIPs().end(),
check_ip));
EXPECT_NE((*it)->GetIPs().end(),
std::find((*it)->GetIPs().begin(),
(*it)->GetIPs().end(),
ip));
} else {
// Check the IP didn't get added anywhere it wasn't supposed to.
EXPECT_EQ((*it)->GetIPs().end(),
std::find((*it)->GetIPs().begin(),
(*it)->GetIPs().end(),
ip));
}
}
}
// Test that merge correctly distinguishes multiple networks on an interface.
TEST_F(NetworkTest, TestMultiplePublicNetworksOnOneInterfaceMerge) {
BasicNetworkManager manager;
manager.SignalNetworksChanged.connect(
static_cast<NetworkTest*>(this), &NetworkTest::OnNetworksChanged);
NetworkManager::NetworkList original_list;
SetupNetworks(&original_list);
bool changed = false;
MergeNetworkList(manager, original_list, &changed);
EXPECT_TRUE(changed);
IPAddress ip;
IPAddress prefix;
// A second network for eth0.
EXPECT_TRUE(IPFromString("2400:4030:1:2c00:be30:5bff:fee5:c3", &ip));
prefix = TruncateIP(ip, 64);
Network ipv6_eth0_publicnetwork2_ip1("test_eth0", "Test NetworkAdapter 1",
prefix, 64);
ipv6_eth0_publicnetwork2_ip1.AddIP(ip);
original_list.push_back(new Network(ipv6_eth0_publicnetwork2_ip1));
changed = false;
MergeNetworkList(manager, original_list, &changed);
EXPECT_TRUE(changed);
// There should be five networks now.
NetworkManager::NetworkList list;
manager.GetNetworks(&list);
EXPECT_EQ(5U, list.size());
// Check the resulting addresses.
for (NetworkManager::NetworkList::iterator it = list.begin();
it != list.end(); ++it) {
if ((*it)->prefix() == ipv6_eth0_publicnetwork2_ip1.prefix() &&
(*it)->name() == ipv6_eth0_publicnetwork2_ip1.name()) {
// Check the new network has 1 IP and that it's the correct one.
EXPECT_EQ(1U, (*it)->GetIPs().size());
EXPECT_EQ(ip, (*it)->GetIPs().at(0));
} else {
// Check the IP didn't get added anywhere it wasn't supposed to.
EXPECT_EQ((*it)->GetIPs().end(),
std::find((*it)->GetIPs().begin(),
(*it)->GetIPs().end(),
ip));
}
}
}
// Test that DumpNetworks works.
TEST_F(NetworkTest, TestDumpNetworks) {
BasicNetworkManager manager;
manager.DumpNetworks(true);
}
// Test that we can toggle IPv6 on and off.
TEST_F(NetworkTest, TestIPv6Toggle) {
BasicNetworkManager manager;
bool ipv6_found = false;
NetworkManager::NetworkList list;
#ifndef WIN32
// There should be at least one IPv6 network (fe80::/64 should be in there).
// TODO(thaloun): Disabling this test on windows for the moment as the test
// machines don't seem to have IPv6 installed on them at all.
manager.set_ipv6_enabled(true);
list = GetNetworks(manager, true);
for (NetworkManager::NetworkList::iterator it = list.begin();
it != list.end(); ++it) {
if ((*it)->prefix().family() == AF_INET6) {
ipv6_found = true;
break;
}
}
EXPECT_TRUE(ipv6_found);
for (NetworkManager::NetworkList::iterator it = list.begin();
it != list.end(); ++it) {
delete (*it);
}
#endif
ipv6_found = false;
manager.set_ipv6_enabled(false);
list = GetNetworks(manager, true);
for (NetworkManager::NetworkList::iterator it = list.begin();
it != list.end(); ++it) {
if ((*it)->prefix().family() == AF_INET6) {
ipv6_found = true;
break;
}
}
EXPECT_FALSE(ipv6_found);
for (NetworkManager::NetworkList::iterator it = list.begin();
it != list.end(); ++it) {
delete (*it);
}
}
#if defined(POSIX)
// Verify that we correctly handle interfaces with no address.
TEST_F(NetworkTest, TestConvertIfAddrsNoAddress) {
ifaddrs list;
memset(&list, 0, sizeof(list));
list.ifa_name = const_cast<char*>("test_iface");
NetworkManager::NetworkList result;
BasicNetworkManager manager;
CallConvertIfAddrs(manager, &list, true, &result);
EXPECT_TRUE(result.empty());
}
#endif // defined(POSIX)
#if defined(LINUX)
// If you want to test non-default routes, you can do the following on a linux
// machine:
// 1) Load the dummy network driver:
// sudo modprobe dummy
// sudo ifconfig dummy0 127.0.0.1
// 2) Run this test and confirm the output says it found a dummy route (and
// passes).
// 3) When done:
// sudo rmmmod dummy
TEST_F(NetworkTest, TestIgnoreNonDefaultRoutes) {
BasicNetworkManager manager;
NetworkManager::NetworkList list;
list = GetNetworks(manager, false);
bool found_dummy = false;
LOG(LS_INFO) << "Looking for dummy network: ";
for (NetworkManager::NetworkList::iterator it = list.begin();
it != list.end(); ++it) {
LOG(LS_INFO) << " Network name: " << (*it)->name();
found_dummy |= (*it)->name().find("dummy0") != std::string::npos;
}
for (NetworkManager::NetworkList::iterator it = list.begin();
it != list.end(); ++it) {
delete (*it);
}
if (!found_dummy) {
LOG(LS_INFO) << "No dummy found, quitting.";
return;
}
LOG(LS_INFO) << "Found dummy, running again while ignoring non-default "
<< "routes.";
manager.set_ignore_non_default_routes(true);
list = GetNetworks(manager, false);
for (NetworkManager::NetworkList::iterator it = list.begin();
it != list.end(); ++it) {
LOG(LS_INFO) << " Network name: " << (*it)->name();
EXPECT_TRUE((*it)->name().find("dummy0") == std::string::npos);
}
for (NetworkManager::NetworkList::iterator it = list.begin();
it != list.end(); ++it) {
delete (*it);
}
}
#endif
} // namespace talk_base