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https://github.com/OpenVPN/openvpn3.git
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d0e2e036eb
Use ::CreateIpForwardEntry2() to add route instead of expensive netsh call. Make it as a default choce. Add unit test. Signed-off-by: Lev Stipakov <lev@openvpn.net>
82 lines
2.3 KiB
C++
82 lines
2.3 KiB
C++
// OpenVPN -- An application to securely tunnel IP networks
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// over a single port, with support for SSL/TLS-based
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// session authentication and key exchange,
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// packet encryption, packet authentication, and
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// packet compression.
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//
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// Copyright (C) 2012-2020 OpenVPN Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License Version 3
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// as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program in the COPYING file.
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#include <fstream>
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#include "test_common.h"
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#include <openvpn/common/argv.hpp>
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#include <openvpn/win/call.hpp>
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#include <openvpn/tun/win/tunutil.hpp>
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using namespace openvpn;
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using namespace openvpn::TunWin::Util;
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namespace unittests
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{
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static std::string path_to_ip;
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class IpHelperTest : public testing::Test
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{
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protected:
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void SetUp() override
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{
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// get index of default network adapter
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DWORD addr;
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inet_pton(AF_INET, "8.8.8.8", &addr);
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::GetBestInterface(addr, &tap.index);
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}
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virtual void TearDown()
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{
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remove_cmds.execute(os);
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remove_cmds.clear();
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}
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TapNameGuidPair tap;
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ActionList remove_cmds;
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std::ostringstream os;
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};
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TEST_F(IpHelperTest, TestAddRoute4)
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{
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const char* gw = "10.10.123.123";
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const char* route = "10.10.0.0";
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int route_prefix = 16;
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int metric = 123;
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TunIPHELPER::AddRoute4Cmd cmd{route, route_prefix, tap, gw, metric, true};
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remove_cmds.add(new TunIPHELPER::AddRoute4Cmd{route, route_prefix, tap, gw, metric, false});
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// add route
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cmd.execute(os);
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// get next hop for routed address
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MIB_IPFORWARDROW row;
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DWORD addr;
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inet_pton(AF_INET, "10.10.0.3", &addr);
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GetBestRoute(addr, 0, &row);
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char next_hop[INET_ADDRSTRLEN];
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inet_ntop(AF_INET, &row.dwForwardNextHop, next_hop, INET_ADDRSTRLEN);
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// the next hop should equal route gw
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ASSERT_STREQ(gw, next_hop);
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}
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}
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