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Refactoring to eliminate duplicated code

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Adam Ierymenko 2019-08-14 14:55:37 -07:00
parent 8f5f7f1baa
commit e6b4006c70
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16 changed files with 298 additions and 550 deletions
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node/Credential.cpp Normal file
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/*
* ZeroTier One - Network Virtualization Everywhere
* Copyright (C) 2011-2019 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/>.
*
* --
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial closed-source software that incorporates or links
* directly against ZeroTier software without disclosing the source code
* of your own application.
*/
#include "Constants.hpp"
#include "RuntimeEnvironment.hpp"
#include "Credential.hpp"
#include "Capability.hpp"
#include "Tag.hpp"
#include "CertificateOfMembership.hpp"
#include "CertificateOfOwnership.hpp"
#include "Revocation.hpp"
#include "Switch.hpp"
#include "Network.hpp"
namespace ZeroTier {
template<typename CRED>
static inline Credential::VerifyResult _credVerify(const RuntimeEnvironment *const RR,void *tPtr,CRED credential)
{
const Address signedBy(credential.signer());
const uint64_t networkId = credential.networkId();
if ((!signedBy)||(signedBy != Network::controllerFor(networkId)))
return Credential::VERIFY_BAD_SIGNATURE;
const Identity id(RR->topology->getIdentity(tPtr,signedBy));
if (!id) {
RR->sw->requestWhois(tPtr,RR->node->now(),signedBy);
return Credential::VERIFY_NEED_IDENTITY;
}
try {
Buffer<(sizeof(CRED) + 64)> *const tmp = new Buffer<(sizeof(CRED) + 64)>();
credential.serialize(*tmp,true);
const Credential::VerifyResult result = (id.verify(tmp->data(),tmp->size(),credential.signature(),credential.signatureLength()) ? Credential::VERIFY_OK : Credential::VERIFY_BAD_SIGNATURE);
delete tmp;
return result;
} catch ( ... ) {}
return Credential::VERIFY_BAD_SIGNATURE;
}
Credential::VerifyResult Credential::_verify(const RuntimeEnvironment *const RR,void *tPtr,const Revocation &credential) const { return _credVerify(RR,tPtr,credential); }
Credential::VerifyResult Credential::_verify(const RuntimeEnvironment *const RR,void *tPtr,const Tag &credential) const { return _credVerify(RR,tPtr,credential); }
Credential::VerifyResult Credential::_verify(const RuntimeEnvironment *const RR,void *tPtr,const CertificateOfOwnership &credential) const { return _credVerify(RR,tPtr,credential); }
Credential::VerifyResult Credential::_verify(const RuntimeEnvironment *const RR,void *tPtr,const CertificateOfMembership &credential) const
{
if ((!credential._signedBy)||(credential._signedBy != Network::controllerFor(credential.networkId()))||(credential._qualifierCount > ZT_NETWORK_COM_MAX_QUALIFIERS))
return Credential::VERIFY_BAD_SIGNATURE;
const Identity id(RR->topology->getIdentity(tPtr,credential._signedBy));
if (!id) {
RR->sw->requestWhois(tPtr,RR->node->now(),credential._signedBy);
return Credential::VERIFY_NEED_IDENTITY;
}
uint64_t buf[ZT_NETWORK_COM_MAX_QUALIFIERS * 3];
unsigned int ptr = 0;
for(unsigned int i=0;i<credential._qualifierCount;++i) {
buf[ptr++] = Utils::hton(credential._qualifiers[i].id);
buf[ptr++] = Utils::hton(credential._qualifiers[i].value);
buf[ptr++] = Utils::hton(credential._qualifiers[i].maxDelta);
}
return (id.verify(buf,ptr * sizeof(uint64_t),credential._signature,credential._signatureLength) ? Credential::VERIFY_OK : Credential::VERIFY_BAD_SIGNATURE);
}
} // namespace ZeroTier