More work on tags and capabilities.
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12 changed files with 397 additions and 54 deletions
52
node/Capability.cpp
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52
node/Capability.cpp
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/*
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* ZeroTier One - Network Virtualization Everywhere
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* Copyright (C) 2011-2016 ZeroTier, Inc. https://www.zerotier.com/
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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 General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "Capability.hpp"
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#include "RuntimeEnvironment.hpp"
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#include "Identity.hpp"
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#include "Topology.hpp"
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#include "Switch.hpp"
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namespace ZeroTier {
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int Capability::verify(const RuntimeEnvironment *RR) const
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{
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try {
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Buffer<(sizeof(Capability) * 2)> tmp;
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this->serialize(tmp,true);
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for(unsigned int c=0;c<ZT_MAX_CAPABILITY_CUSTODY_CHAIN_LENGTH;++c) {
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if (!_custody[c].to)
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return ((c == 0) ? -1 : 0);
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if (!_custody[c].from)
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return -1;
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const Identity id(RR->topology->getIdentity(_custody[c].from));
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if (id) {
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if (!id.verify(tmp.data(),tmp.size(),_custody[c].signature))
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return -1;
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} else {
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RR->sw->requestWhois(_custody[c].from);
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return 1;
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}
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}
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return 0;
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} catch ( ... ) {
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return -1;
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}
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}
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} // namespace ZeroTier
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