/*
 * Copyright (c)2019 ZeroTier, Inc.
 *
 * Use of this software is governed by the Business Source License included
 * in the LICENSE.TXT file in the project's root directory.
 *
 * Change Date: 2026-01-01
 *
 * On the date above, in accordance with the Business Source License, use
 * of this software will be governed by version 2.0 of the Apache License.
 */
/****/

#include "CertificateOfOwnership.hpp"

#include "Identity.hpp"
#include "Network.hpp"
#include "Node.hpp"
#include "RuntimeEnvironment.hpp"
#include "Switch.hpp"
#include "Topology.hpp"

namespace ZeroTier {

int CertificateOfOwnership::verify(const RuntimeEnvironment* RR, void* tPtr) const
{
    if ((! _signedBy) || (_signedBy != Network::controllerFor(_networkId))) {
        return -1;
    }
    const Identity id(RR->topology->getIdentity(tPtr, _signedBy));
    if (! id) {
        RR->sw->requestWhois(tPtr, RR->node->now(), _signedBy);
        return 1;
    }
    try {
        Buffer<(sizeof(CertificateOfOwnership) + 64)> tmp;
        this->serialize(tmp, true);
        return (id.verify(tmp.data(), tmp.size(), _signature) ? 0 : -1);
    }
    catch (...) {
        return -1;
    }
}

bool CertificateOfOwnership::_owns(const CertificateOfOwnership::Thing& t, const void* v, unsigned int l) const
{
    for (unsigned int i = 0, j = _thingCount; i < j; ++i) {
        if (_thingTypes[i] == (uint8_t)t) {
            unsigned int k = 0;
            while (k < l) {
                if (reinterpret_cast<const uint8_t*>(v)[k] != _thingValues[i][k]) {
                    break;
                }
                ++k;
            }
            if (k == l) {
                return true;
            }
        }
    }
    return false;
}

}   // namespace ZeroTier