mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-20 05:28:01 +00:00
67 lines
1.8 KiB
C++
67 lines
1.8 KiB
C++
|
/*
|
||
|
|
* ZeroTier One - Global Peer to Peer Ethernet
|
||
|
|
* Copyright (C) 2011-2015 ZeroTier Networks
|
||
|
|
*
|
||
|
|
* 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, see <http://www.gnu.org/licenses/>.
|
||
|
|
*
|
||
|
|
* --
|
||
|
|
*
|
||
|
|
* ZeroTier may be used and distributed under the terms of the GPLv3, which
|
||
|
|
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
|
||
|
|
*
|
||
|
|
* If you would like to embed ZeroTier into a commercial application or
|
||
|
|
* redistribute it in a modified binary form, please contact ZeroTier Networks
|
||
|
|
* LLC. Start here: http://www.zerotier.com/
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef ZT_EXTERNALSURFACE_HPP
|
||
|
|
#define ZT_EXTERNALSURFACE_HPP
|
||
|
|
|
||
|
|
#include "InetAddress.hpp"
|
||
|
|
|
||
|
|
namespace ZeroTier {
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Tracks changes to this peer's real world addresses
|
||
|
|
*/
|
||
|
|
class ExternalSurface
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
ExternalSurface() {}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Revise our external surface image, return true if it changed
|
||
|
|
*
|
||
|
|
* @param remote Remote address as reflected by any trusted peer
|
||
|
|
* @return True if our external surface has changed
|
||
|
|
*/
|
||
|
|
inline bool revise(const InetAddress &remote)
|
||
|
|
throw()
|
||
|
|
{
|
||
|
|
const unsigned long idx = (remote.isV4() ? 0 : 2) | (remote.isLinkLocal() ? 1 : 0);
|
||
|
|
if (_s[idx] != remote) {
|
||
|
|
_s[idx] = remote;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
InetAddress _s[4]; // global v4, link-local v4, global v6, link-local v6
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace ZeroTier
|
||
|
|
|
||
|
|
#endif
|