| // |
| // Copyright (C) 2013 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| |
| #include "shill/connection_info_reader.h" |
| |
| #include <netinet/in.h> |
| |
| #include <base/files/file_util.h> |
| #include <base/files/scoped_temp_dir.h> |
| #include <base/strings/stringprintf.h> |
| #include <gmock/gmock.h> |
| #include <gtest/gtest.h> |
| |
| using base::FilePath; |
| using base::ScopedTempDir; |
| using base::StringPrintf; |
| using std::string; |
| using std::vector; |
| using testing::Return; |
| |
| namespace shill { |
| |
| namespace { |
| |
| // TODO(benchan): Test IPv6 addresses. |
| |
| const char* const kConnectionInfoLines[] = { |
| "udp 17 30 src=192.168.1.1 dst=192.168.1.2 sport=9000 dport=53 " |
| "[UNREPLIED] src=192.168.1.2 dst=192.168.1.1 sport=53 dport=9000 use=2", |
| "tcp 6 299 ESTABLISHED src=192.168.2.1 dst=192.168.2.3 sport=8000 " |
| "dport=7000 src=192.168.2.3 dst=192.168.2.1 sport=7000 dport=8000 [ASSURED] " |
| "use=2", |
| }; |
| |
| } // namespace |
| |
| class ConnectionInfoReaderUnderTest : public ConnectionInfoReader { |
| public: |
| // Mock out GetConnectionInfoFilePath to use a temporary created connection |
| // info file instead of the actual path in procfs (i.e. |
| // /proc/net/ip_conntrack). |
| MOCK_CONST_METHOD0(GetConnectionInfoFilePath, FilePath()); |
| }; |
| |
| class ConnectionInfoReaderTest : public testing::Test { |
| protected: |
| IPAddress StringToIPv4Address(const string& address_string) { |
| IPAddress ip_address(IPAddress::kFamilyIPv4); |
| EXPECT_TRUE(ip_address.SetAddressFromString(address_string)); |
| return ip_address; |
| } |
| |
| IPAddress StringToIPv6Address(const string& address_string) { |
| IPAddress ip_address(IPAddress::kFamilyIPv6); |
| EXPECT_TRUE(ip_address.SetAddressFromString(address_string)); |
| return ip_address; |
| } |
| |
| void CreateConnectionInfoFile(const char* const* lines, size_t num_lines, |
| const FilePath& dir_path, FilePath* file_path) { |
| ASSERT_TRUE(base::CreateTemporaryFileInDir(dir_path, file_path)); |
| for (size_t i = 0; i < num_lines; ++i) { |
| string line = lines[i]; |
| line += '\n'; |
| ASSERT_TRUE(base::AppendToFile(*file_path, line.data(), line.size())); |
| } |
| } |
| |
| void ExpectConnectionInfoEqual(const ConnectionInfo& info1, |
| const ConnectionInfo& info2) { |
| EXPECT_EQ(info1.protocol(), info2.protocol()); |
| EXPECT_EQ(info1.time_to_expire_seconds(), info2.time_to_expire_seconds()); |
| EXPECT_EQ(info1.is_unreplied(), info2.is_unreplied()); |
| EXPECT_TRUE(info1.original_source_ip_address() |
| .Equals(info2.original_source_ip_address())); |
| EXPECT_EQ(info1.original_source_port(), info2.original_source_port()); |
| EXPECT_TRUE(info1.original_destination_ip_address() |
| .Equals(info2.original_destination_ip_address())); |
| EXPECT_EQ(info1.original_destination_port(), |
| info2.original_destination_port()); |
| EXPECT_TRUE(info1.reply_source_ip_address() |
| .Equals(info2.reply_source_ip_address())); |
| EXPECT_EQ(info1.reply_source_port(), info2.reply_source_port()); |
| EXPECT_TRUE(info1.reply_destination_ip_address() |
| .Equals(info2.reply_destination_ip_address())); |
| EXPECT_EQ(info1.reply_destination_port(), info2.reply_destination_port()); |
| } |
| |
| ConnectionInfoReaderUnderTest reader_; |
| }; |
| |
| TEST_F(ConnectionInfoReaderTest, LoadConnectionInfo) { |
| vector<ConnectionInfo> info_list; |
| ScopedTempDir temp_dir; |
| ASSERT_TRUE(temp_dir.CreateUniqueTempDir()); |
| |
| // Loading a non-existent file should fail. |
| FilePath info_file("/non-existent-file"); |
| EXPECT_CALL(reader_, GetConnectionInfoFilePath()).WillOnce(Return(info_file)); |
| EXPECT_FALSE(reader_.LoadConnectionInfo(&info_list)); |
| |
| // Loading an empty file should succeed. |
| CreateConnectionInfoFile(kConnectionInfoLines, 0, temp_dir.path(), |
| &info_file); |
| EXPECT_CALL(reader_, GetConnectionInfoFilePath()).WillOnce(Return(info_file)); |
| EXPECT_TRUE(reader_.LoadConnectionInfo(&info_list)); |
| EXPECT_TRUE(info_list.empty()); |
| |
| // Loading a non-empty file should succeed. |
| CreateConnectionInfoFile(kConnectionInfoLines, |
| arraysize(kConnectionInfoLines), |
| temp_dir.path(), |
| &info_file); |
| EXPECT_CALL(reader_, GetConnectionInfoFilePath()).WillOnce(Return(info_file)); |
| EXPECT_TRUE(reader_.LoadConnectionInfo(&info_list)); |
| EXPECT_EQ(arraysize(kConnectionInfoLines), info_list.size()); |
| |
| ExpectConnectionInfoEqual(ConnectionInfo(IPPROTO_UDP, |
| 30, |
| true, |
| StringToIPv4Address("192.168.1.1"), |
| 9000, |
| StringToIPv4Address("192.168.1.2"), |
| 53, |
| StringToIPv4Address("192.168.1.2"), |
| 53, |
| StringToIPv4Address("192.168.1.1"), |
| 9000), |
| info_list[0]); |
| ExpectConnectionInfoEqual(ConnectionInfo(IPPROTO_TCP, |
| 299, |
| false, |
| StringToIPv4Address("192.168.2.1"), |
| 8000, |
| StringToIPv4Address("192.168.2.3"), |
| 7000, |
| StringToIPv4Address("192.168.2.3"), |
| 7000, |
| StringToIPv4Address("192.168.2.1"), |
| 8000), |
| info_list[1]); |
| } |
| |
| TEST_F(ConnectionInfoReaderTest, ParseConnectionInfo) { |
| ConnectionInfo info; |
| |
| EXPECT_FALSE(reader_.ParseConnectionInfo("", &info)); |
| |
| EXPECT_TRUE(reader_.ParseConnectionInfo(kConnectionInfoLines[0], &info)); |
| ExpectConnectionInfoEqual(ConnectionInfo(IPPROTO_UDP, |
| 30, |
| true, |
| StringToIPv4Address("192.168.1.1"), |
| 9000, |
| StringToIPv4Address("192.168.1.2"), |
| 53, |
| StringToIPv4Address("192.168.1.2"), |
| 53, |
| StringToIPv4Address("192.168.1.1"), |
| 9000), |
| info); |
| } |
| |
| TEST_F(ConnectionInfoReaderTest, ParseProtocol) { |
| int protocol = 0; |
| |
| EXPECT_FALSE(reader_.ParseProtocol("", &protocol)); |
| EXPECT_FALSE(reader_.ParseProtocol("a", &protocol)); |
| EXPECT_FALSE(reader_.ParseProtocol("-1", &protocol)); |
| EXPECT_FALSE(reader_.ParseProtocol(StringPrintf("%d", IPPROTO_MAX), |
| &protocol)); |
| |
| for (int i = 0; i < IPPROTO_MAX; ++i) { |
| EXPECT_TRUE(reader_.ParseProtocol(StringPrintf("%d", i), &protocol)); |
| EXPECT_EQ(i, protocol); |
| } |
| } |
| |
| TEST_F(ConnectionInfoReaderTest, ParseTimeToExpireSeconds) { |
| int64_t time_to_expire = 0; |
| |
| EXPECT_FALSE(reader_.ParseTimeToExpireSeconds("", &time_to_expire)); |
| EXPECT_FALSE(reader_.ParseTimeToExpireSeconds("a", &time_to_expire)); |
| EXPECT_FALSE(reader_.ParseTimeToExpireSeconds("-1", &time_to_expire)); |
| |
| EXPECT_TRUE(reader_.ParseTimeToExpireSeconds("100", &time_to_expire)); |
| EXPECT_EQ(100, time_to_expire); |
| } |
| |
| TEST_F(ConnectionInfoReaderTest, ParseIPAddress) { |
| IPAddress ip_address(IPAddress::kFamilyUnknown); |
| bool is_source = false; |
| |
| EXPECT_FALSE(reader_.ParseIPAddress("", &ip_address, &is_source)); |
| EXPECT_FALSE(reader_.ParseIPAddress("abc", &ip_address, &is_source)); |
| EXPECT_FALSE(reader_.ParseIPAddress("src=", &ip_address, &is_source)); |
| EXPECT_FALSE(reader_.ParseIPAddress("src=abc", &ip_address, &is_source)); |
| EXPECT_FALSE(reader_.ParseIPAddress("dst=", &ip_address, &is_source)); |
| EXPECT_FALSE(reader_.ParseIPAddress("dst=abc", &ip_address, &is_source)); |
| |
| EXPECT_TRUE(reader_.ParseIPAddress("src=192.168.1.1", |
| &ip_address, &is_source)); |
| EXPECT_TRUE(ip_address.Equals(StringToIPv4Address("192.168.1.1"))); |
| EXPECT_TRUE(is_source); |
| EXPECT_TRUE(reader_.ParseIPAddress("dst=192.168.1.2", |
| &ip_address, &is_source)); |
| EXPECT_TRUE(ip_address.Equals(StringToIPv4Address("192.168.1.2"))); |
| EXPECT_FALSE(is_source); |
| } |
| |
| TEST_F(ConnectionInfoReaderTest, ParsePort) { |
| uint16_t port = 0; |
| bool is_source = false; |
| |
| EXPECT_FALSE(reader_.ParsePort("", &port, &is_source)); |
| EXPECT_FALSE(reader_.ParsePort("a", &port, &is_source)); |
| EXPECT_FALSE(reader_.ParsePort("0", &port, &is_source)); |
| EXPECT_FALSE(reader_.ParsePort("sport=", &port, &is_source)); |
| EXPECT_FALSE(reader_.ParsePort("sport=a", &port, &is_source)); |
| EXPECT_FALSE(reader_.ParsePort("sport=-1", &port, &is_source)); |
| EXPECT_FALSE(reader_.ParsePort("sport=65536", &port, &is_source)); |
| EXPECT_FALSE(reader_.ParsePort("dport=", &port, &is_source)); |
| EXPECT_FALSE(reader_.ParsePort("dport=a", &port, &is_source)); |
| EXPECT_FALSE(reader_.ParsePort("dport=-1", &port, &is_source)); |
| EXPECT_FALSE(reader_.ParsePort("dport=65536", &port, &is_source)); |
| |
| EXPECT_TRUE(reader_.ParsePort("sport=53", &port, &is_source)); |
| EXPECT_EQ(53, port); |
| EXPECT_TRUE(is_source); |
| EXPECT_TRUE(reader_.ParsePort("dport=80", &port, &is_source)); |
| EXPECT_EQ(80, port); |
| EXPECT_FALSE(is_source); |
| } |
| |
| } // namespace shill |
