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/*
* ZeroTier One - Network Virtualization Everywhere
* Copyright (C) 2011-2016 ZeroTier, Inc. https://www.zerotier.com/
*
* 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/>.
*/
#include "Capability.hpp"
#include "RuntimeEnvironment.hpp"
#include "Identity.hpp"
#include "Topology.hpp"
#include "Switch.hpp"
namespace ZeroTier {
int Capability::verify(const RuntimeEnvironment *RR) const
{
try {
Buffer<(sizeof(Capability) * 2)> tmp;
this->serialize(tmp,true);
for(unsigned int c=0;c<ZT_MAX_CAPABILITY_CUSTODY_CHAIN_LENGTH;++c) {
if (!_custody[c].to)
return ((c == 0) ? -1 : 0);
if (!_custody[c].from)
return -1;
const Identity id(RR->topology->getIdentity(_custody[c].from));
if (id) {
if (!id.verify(tmp.data(),tmp.size(),_custody[c].signature))
return -1;
} else {
RR->sw->requestWhois(_custody[c].from);
return 1;
}
}
return 0;
} catch ( ... ) {
return -1;
}
}
} // namespace ZeroTier
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