stk-code_catmod/src/network/transport_address.cpp
hiker 79ad569542 Only allow LAN connections for LAN servers (previously anyone with
the IP address could connect, even from the outside). Added new
--public-server command line option to enable public WAN server.
2016-12-06 09:10:05 +11:00

112 lines
3.7 KiB
C++

//
// SuperTuxKart - a fun racing game with go-kart
// Copyright (C) 2013-2015 Joerg Henrichs
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 3
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#include "network/transport_address.hpp"
/** Returns if this IP address belongs to a LAN, i.e. is in 192.168* or
* 10*, 172.16-31.*, or is on the same host, i.e. 127*.
*/
bool TransportAddress::isLAN() const
{
uint32_t ip = getIP();
if (ip >> 16 == 0xc0a8) // Check for 192.168.*
return true;
else if (ip >> 20 == 0xac1 ) // 172.16-31.*
return true;
else if (ip >> 24 == 0x0a ) // 10.*
return true;
else if (ip >> 24 == 0x7f ) // 127.* localhost
return true;
return false;
} // isLAN
// ----------------------------------------------------------------------------
/** Unit testing. Test various LAN patterns to verify that isLAN() works as
* expected.
*/
void TransportAddress::unitTesting()
{
TransportAddress t1("192.168.0.0");
assert(t1.getIP() == (192 << 24) + (168 << 16));
assert(t1.isLAN());
TransportAddress t2("192.168.255.255");
assert(t2.getIP() == (192 << 24) + (168 << 16) + (255 << 8) + 255);
assert(t2.isLAN());
TransportAddress t3("193.168.0.1");
assert(t3.getIP() == (193 << 24) + (168 << 16) + 1);
assert(!t3.isLAN());
TransportAddress t4("192.167.255.255");
assert(t4.getIP() == (192 << 24) + (167 << 16) + (255 << 8) + 255);
assert(!t4.isLAN());
TransportAddress t5("192.169.0.0");
assert(t5.getIP() == (192 << 24) + (169 << 16));
assert(!t5.isLAN());
TransportAddress t6("172.16.0.0");
assert(t6.getIP() == (172 << 24) + (16 << 16));
assert(t6.isLAN());
TransportAddress t7("172.31.255.255");
assert(t7.getIP() == (172 << 24) + (31 << 16) + (255 << 8) + 255);
assert(t7.isLAN());
TransportAddress t8("172.15.255.255");
assert(t8.getIP() == (172 << 24) + (15 << 16) + (255 << 8) + 255);
assert(!t8.isLAN());
TransportAddress t9("172.32.0.0");
assert(t9.getIP() == (172 << 24) + (32 << 16));
assert(!t9.isLAN());
TransportAddress t10("10.0.0.0");
assert(t10.getIP() == (10 << 24));
assert(t10.isLAN());
TransportAddress t11("10.255.255.255");
assert(t11.getIP() == (10 << 24) + (255 << 16) + (255 << 8) + 255);
assert(t11.isLAN());
TransportAddress t12("9.255.255.255");
assert(t12.getIP() == (9 << 24) + (255 << 16) + (255 << 8) + 255);
assert(!t12.isLAN());
TransportAddress t13("11.0.0.0");
assert(t13.getIP() == (11 << 24) );
assert(!t13.isLAN());
TransportAddress t14("127.0.0.0");
assert(t14.getIP() == (127 << 24));
assert(t14.isLAN());
TransportAddress t15("127.255.255.255");
assert(t15.getIP() == (127 << 24) + (255 << 16) + (255 << 8) + 255);
assert(t15.isLAN());
TransportAddress t16("126.255.255.255");
assert(t16.getIP() == (126 << 24) + (255 << 16) + (255 << 8) + 255);
assert(!t16.isLAN());
TransportAddress t17("128.0.0.0");
assert(t17.getIP() == (128 << 24));
assert(t17.isLAN());
} // unitTesting