upgraded core to 1.2.0
This commit is contained in:
Joseph Henry
395
zto/node/Membership.cpp
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395
zto/node/Membership.cpp
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@@ -0,0 +1,395 @@
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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 <algorithm>
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#include "Membership.hpp"
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#include "RuntimeEnvironment.hpp"
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#include "Peer.hpp"
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#include "Topology.hpp"
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#include "Switch.hpp"
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#include "Packet.hpp"
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#include "Node.hpp"
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#define ZT_CREDENTIAL_PUSH_EVERY (ZT_NETWORK_AUTOCONF_DELAY / 3)
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namespace ZeroTier {
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Membership::Membership() :
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_lastUpdatedMulticast(0),
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_lastPushedCom(0),
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_comRevocationThreshold(0)
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{
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for(unsigned int i=0;i<ZT_MAX_NETWORK_TAGS;++i) _remoteTags[i] = &(_tagMem[i]);
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for(unsigned int i=0;i<ZT_MAX_NETWORK_CAPABILITIES;++i) _remoteCaps[i] = &(_capMem[i]);
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for(unsigned int i=0;i<ZT_MAX_CERTIFICATES_OF_OWNERSHIP;++i) _remoteCoos[i] = &(_cooMem[i]);
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}
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void Membership::pushCredentials(const RuntimeEnvironment *RR,const uint64_t now,const Address &peerAddress,const NetworkConfig &nconf,int localCapabilityIndex,const bool force)
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{
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bool sendCom = ( (nconf.com) && ( ((now - _lastPushedCom) >= ZT_CREDENTIAL_PUSH_EVERY) || (force) ) );
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const Capability *sendCap;
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if (localCapabilityIndex >= 0) {
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sendCap = &(nconf.capabilities[localCapabilityIndex]);
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if ( (_localCaps[localCapabilityIndex].id != sendCap->id()) || ((now - _localCaps[localCapabilityIndex].lastPushed) >= ZT_CREDENTIAL_PUSH_EVERY) || (force) ) {
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_localCaps[localCapabilityIndex].lastPushed = now;
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_localCaps[localCapabilityIndex].id = sendCap->id();
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} else sendCap = (const Capability *)0;
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} else sendCap = (const Capability *)0;
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const Tag *sendTags[ZT_MAX_NETWORK_TAGS];
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unsigned int sendTagCount = 0;
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for(unsigned int t=0;t<nconf.tagCount;++t) {
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if ( (_localTags[t].id != nconf.tags[t].id()) || ((now - _localTags[t].lastPushed) >= ZT_CREDENTIAL_PUSH_EVERY) || (force) ) {
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_localTags[t].lastPushed = now;
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_localTags[t].id = nconf.tags[t].id();
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sendTags[sendTagCount++] = &(nconf.tags[t]);
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}
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}
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const CertificateOfOwnership *sendCoos[ZT_MAX_CERTIFICATES_OF_OWNERSHIP];
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unsigned int sendCooCount = 0;
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for(unsigned int c=0;c<nconf.certificateOfOwnershipCount;++c) {
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if ( (_localCoos[c].id != nconf.certificatesOfOwnership[c].id()) || ((now - _localCoos[c].lastPushed) >= ZT_CREDENTIAL_PUSH_EVERY) || (force) ) {
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_localCoos[c].lastPushed = now;
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_localCoos[c].id = nconf.certificatesOfOwnership[c].id();
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sendCoos[sendCooCount++] = &(nconf.certificatesOfOwnership[c]);
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}
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}
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unsigned int tagPtr = 0;
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unsigned int cooPtr = 0;
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while ((tagPtr < sendTagCount)||(cooPtr < sendCooCount)||(sendCom)||(sendCap)) {
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Packet outp(peerAddress,RR->identity.address(),Packet::VERB_NETWORK_CREDENTIALS);
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if (sendCom) {
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sendCom = false;
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nconf.com.serialize(outp);
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_lastPushedCom = now;
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}
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outp.append((uint8_t)0x00);
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if (sendCap) {
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outp.append((uint16_t)1);
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sendCap->serialize(outp);
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sendCap = (const Capability *)0;
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} else outp.append((uint16_t)0);
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const unsigned int tagCountAt = outp.size();
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outp.addSize(2);
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unsigned int thisPacketTagCount = 0;
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while ((tagPtr < sendTagCount)&&((outp.size() + sizeof(Tag) + 16) < ZT_PROTO_MAX_PACKET_LENGTH)) {
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sendTags[tagPtr++]->serialize(outp);
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++thisPacketTagCount;
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}
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outp.setAt(tagCountAt,(uint16_t)thisPacketTagCount);
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// No revocations, these propagate differently
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outp.append((uint16_t)0);
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const unsigned int cooCountAt = outp.size();
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outp.addSize(2);
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unsigned int thisPacketCooCount = 0;
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while ((cooPtr < sendCooCount)&&((outp.size() + sizeof(CertificateOfOwnership) + 16) < ZT_PROTO_MAX_PACKET_LENGTH)) {
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sendCoos[cooPtr++]->serialize(outp);
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++thisPacketCooCount;
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}
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outp.setAt(cooCountAt,(uint16_t)thisPacketCooCount);
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outp.compress();
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RR->sw->send(outp,true);
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}
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}
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const Tag *Membership::getTag(const NetworkConfig &nconf,const uint32_t id) const
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{
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const _RemoteCredential<Tag> *const *t = std::lower_bound(&(_remoteTags[0]),&(_remoteTags[ZT_MAX_NETWORK_TAGS]),(uint64_t)id,_RemoteCredentialComp<Tag>());
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return ( ((t != &(_remoteTags[ZT_MAX_NETWORK_CAPABILITIES]))&&((*t)->id == (uint64_t)id)) ? ((((*t)->lastReceived)&&(_isCredentialTimestampValid(nconf,**t))) ? &((*t)->credential) : (const Tag *)0) : (const Tag *)0);
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}
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Membership::AddCredentialResult Membership::addCredential(const RuntimeEnvironment *RR,const NetworkConfig &nconf,const CertificateOfMembership &com)
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{
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const uint64_t newts = com.timestamp().first;
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if (newts <= _comRevocationThreshold) {
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TRACE("addCredential(CertificateOfMembership) for %s on %.16llx REJECTED (revoked)",com.issuedTo().toString().c_str(),com.networkId());
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return ADD_REJECTED;
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}
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const uint64_t oldts = _com.timestamp().first;
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if (newts < oldts) {
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TRACE("addCredential(CertificateOfMembership) for %s on %.16llx REJECTED (older than current)",com.issuedTo().toString().c_str(),com.networkId());
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return ADD_REJECTED;
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}
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if ((newts == oldts)&&(_com == com)) {
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TRACE("addCredential(CertificateOfMembership) for %s on %.16llx ACCEPTED (redundant)",com.issuedTo().toString().c_str(),com.networkId());
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return ADD_ACCEPTED_REDUNDANT;
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}
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switch(com.verify(RR)) {
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default:
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TRACE("addCredential(CertificateOfMembership) for %s on %.16llx REJECTED (invalid signature or object)",com.issuedTo().toString().c_str(),com.networkId());
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return ADD_REJECTED;
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case 0:
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TRACE("addCredential(CertificateOfMembership) for %s on %.16llx ACCEPTED (new)",com.issuedTo().toString().c_str(),com.networkId());
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_com = com;
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return ADD_ACCEPTED_NEW;
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case 1:
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return ADD_DEFERRED_FOR_WHOIS;
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}
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}
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Membership::AddCredentialResult Membership::addCredential(const RuntimeEnvironment *RR,const NetworkConfig &nconf,const Tag &tag)
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{
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_RemoteCredential<Tag> *const *htmp = std::lower_bound(&(_remoteTags[0]),&(_remoteTags[ZT_MAX_NETWORK_TAGS]),(uint64_t)tag.id(),_RemoteCredentialComp<Tag>());
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_RemoteCredential<Tag> *have = ((htmp != &(_remoteTags[ZT_MAX_NETWORK_TAGS]))&&((*htmp)->id == (uint64_t)tag.id())) ? *htmp : (_RemoteCredential<Tag> *)0;
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if (have) {
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if ( (!_isCredentialTimestampValid(nconf,*have)) || (have->credential.timestamp() > tag.timestamp()) ) {
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TRACE("addCredential(Tag) for %s on %.16llx REJECTED (revoked or too old)",tag.issuedTo().toString().c_str(),tag.networkId());
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return ADD_REJECTED;
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}
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if (have->credential == tag) {
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TRACE("addCredential(Tag) for %s on %.16llx ACCEPTED (redundant)",tag.issuedTo().toString().c_str(),tag.networkId());
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return ADD_ACCEPTED_REDUNDANT;
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}
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}
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switch(tag.verify(RR)) {
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default:
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TRACE("addCredential(Tag) for %s on %.16llx REJECTED (invalid)",tag.issuedTo().toString().c_str(),tag.networkId());
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return ADD_REJECTED;
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case 0:
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TRACE("addCredential(Tag) for %s on %.16llx ACCEPTED (new)",tag.issuedTo().toString().c_str(),tag.networkId());
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if (!have) have = _newTag(tag.id());
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have->lastReceived = RR->node->now();
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have->credential = tag;
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return ADD_ACCEPTED_NEW;
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case 1:
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return ADD_DEFERRED_FOR_WHOIS;
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}
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}
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Membership::AddCredentialResult Membership::addCredential(const RuntimeEnvironment *RR,const NetworkConfig &nconf,const Capability &cap)
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{
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_RemoteCredential<Capability> *const *htmp = std::lower_bound(&(_remoteCaps[0]),&(_remoteCaps[ZT_MAX_NETWORK_CAPABILITIES]),(uint64_t)cap.id(),_RemoteCredentialComp<Capability>());
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_RemoteCredential<Capability> *have = ((htmp != &(_remoteCaps[ZT_MAX_NETWORK_CAPABILITIES]))&&((*htmp)->id == (uint64_t)cap.id())) ? *htmp : (_RemoteCredential<Capability> *)0;
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if (have) {
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if ( (!_isCredentialTimestampValid(nconf,*have)) || (have->credential.timestamp() > cap.timestamp()) ) {
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TRACE("addCredential(Capability) for %s on %.16llx REJECTED (revoked or too old)",cap.issuedTo().toString().c_str(),cap.networkId());
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return ADD_REJECTED;
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}
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if (have->credential == cap) {
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TRACE("addCredential(Capability) for %s on %.16llx ACCEPTED (redundant)",cap.issuedTo().toString().c_str(),cap.networkId());
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return ADD_ACCEPTED_REDUNDANT;
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}
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}
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switch(cap.verify(RR)) {
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default:
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TRACE("addCredential(Capability) for %s on %.16llx REJECTED (invalid)",cap.issuedTo().toString().c_str(),cap.networkId());
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return ADD_REJECTED;
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case 0:
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TRACE("addCredential(Capability) for %s on %.16llx ACCEPTED (new)",cap.issuedTo().toString().c_str(),cap.networkId());
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if (!have) have = _newCapability(cap.id());
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have->lastReceived = RR->node->now();
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have->credential = cap;
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return ADD_ACCEPTED_NEW;
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case 1:
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return ADD_DEFERRED_FOR_WHOIS;
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}
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}
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Membership::AddCredentialResult Membership::addCredential(const RuntimeEnvironment *RR,const NetworkConfig &nconf,const Revocation &rev)
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{
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switch(rev.verify(RR)) {
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default:
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return ADD_REJECTED;
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case 0: {
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const uint64_t now = RR->node->now();
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switch(rev.type()) {
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default:
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return ADD_REJECTED;
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case Revocation::CREDENTIAL_TYPE_COM:
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return (_revokeCom(rev) ? ADD_ACCEPTED_NEW : ADD_ACCEPTED_REDUNDANT);
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case Revocation::CREDENTIAL_TYPE_CAPABILITY:
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return (_revokeCap(rev,now) ? ADD_ACCEPTED_NEW : ADD_ACCEPTED_REDUNDANT);
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case Revocation::CREDENTIAL_TYPE_TAG:
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return (_revokeTag(rev,now) ? ADD_ACCEPTED_NEW : ADD_ACCEPTED_REDUNDANT);
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case Revocation::CREDENTIAL_TYPE_COO:
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return (_revokeCoo(rev,now) ? ADD_ACCEPTED_NEW : ADD_ACCEPTED_REDUNDANT);
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}
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}
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case 1:
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return ADD_DEFERRED_FOR_WHOIS;
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}
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}
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Membership::AddCredentialResult Membership::addCredential(const RuntimeEnvironment *RR,const NetworkConfig &nconf,const CertificateOfOwnership &coo)
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{
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_RemoteCredential<CertificateOfOwnership> *const *htmp = std::lower_bound(&(_remoteCoos[0]),&(_remoteCoos[ZT_MAX_CERTIFICATES_OF_OWNERSHIP]),(uint64_t)coo.id(),_RemoteCredentialComp<CertificateOfOwnership>());
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_RemoteCredential<CertificateOfOwnership> *have = ((htmp != &(_remoteCoos[ZT_MAX_CERTIFICATES_OF_OWNERSHIP]))&&((*htmp)->id == (uint64_t)coo.id())) ? *htmp : (_RemoteCredential<CertificateOfOwnership> *)0;
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if (have) {
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if ( (!_isCredentialTimestampValid(nconf,*have)) || (have->credential.timestamp() > coo.timestamp()) ) {
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TRACE("addCredential(CertificateOfOwnership) for %s on %.16llx REJECTED (revoked or too old)",coo.issuedTo().toString().c_str(),coo.networkId());
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return ADD_REJECTED;
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}
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if (have->credential == coo) {
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TRACE("addCredential(CertificateOfOwnership) for %s on %.16llx ACCEPTED (redundant)",coo.issuedTo().toString().c_str(),coo.networkId());
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return ADD_ACCEPTED_REDUNDANT;
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}
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}
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switch(coo.verify(RR)) {
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default:
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TRACE("addCredential(CertificateOfOwnership) for %s on %.16llx REJECTED (invalid)",coo.issuedTo().toString().c_str(),coo.networkId());
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return ADD_REJECTED;
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case 0:
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TRACE("addCredential(CertificateOfOwnership) for %s on %.16llx ACCEPTED (new)",coo.issuedTo().toString().c_str(),coo.networkId());
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if (!have) have = _newCoo(coo.id());
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have->lastReceived = RR->node->now();
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have->credential = coo;
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return ADD_ACCEPTED_NEW;
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case 1:
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return ADD_DEFERRED_FOR_WHOIS;
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}
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}
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Membership::_RemoteCredential<Tag> *Membership::_newTag(const uint64_t id)
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{
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_RemoteCredential<Tag> *t = NULL;
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uint64_t minlr = 0xffffffffffffffffULL;
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for(unsigned int i=0;i<ZT_MAX_NETWORK_TAGS;++i) {
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if (_remoteTags[i]->id == ZT_MEMBERSHIP_CRED_ID_UNUSED) {
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t = _remoteTags[i];
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break;
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} else if (_remoteTags[i]->lastReceived <= minlr) {
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t = _remoteTags[i];
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minlr = _remoteTags[i]->lastReceived;
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}
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}
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if (t) {
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t->id = id;
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t->lastReceived = 0;
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t->revocationThreshold = 0;
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t->credential = Tag();
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}
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std::sort(&(_remoteTags[0]),&(_remoteTags[ZT_MAX_NETWORK_TAGS]),_RemoteCredentialComp<Tag>());
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return t;
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}
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Membership::_RemoteCredential<Capability> *Membership::_newCapability(const uint64_t id)
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{
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_RemoteCredential<Capability> *c = NULL;
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uint64_t minlr = 0xffffffffffffffffULL;
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for(unsigned int i=0;i<ZT_MAX_NETWORK_CAPABILITIES;++i) {
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if (_remoteCaps[i]->id == ZT_MEMBERSHIP_CRED_ID_UNUSED) {
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c = _remoteCaps[i];
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break;
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} else if (_remoteCaps[i]->lastReceived <= minlr) {
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c = _remoteCaps[i];
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minlr = _remoteCaps[i]->lastReceived;
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}
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}
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if (c) {
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c->id = id;
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c->lastReceived = 0;
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c->revocationThreshold = 0;
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c->credential = Capability();
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}
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std::sort(&(_remoteCaps[0]),&(_remoteCaps[ZT_MAX_NETWORK_CAPABILITIES]),_RemoteCredentialComp<Capability>());
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return c;
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}
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Membership::_RemoteCredential<CertificateOfOwnership> *Membership::_newCoo(const uint64_t id)
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{
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_RemoteCredential<CertificateOfOwnership> *c = NULL;
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uint64_t minlr = 0xffffffffffffffffULL;
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for(unsigned int i=0;i<ZT_MAX_CERTIFICATES_OF_OWNERSHIP;++i) {
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if (_remoteCoos[i]->id == ZT_MEMBERSHIP_CRED_ID_UNUSED) {
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c = _remoteCoos[i];
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break;
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} else if (_remoteCoos[i]->lastReceived <= minlr) {
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c = _remoteCoos[i];
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minlr = _remoteCoos[i]->lastReceived;
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}
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}
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if (c) {
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c->id = id;
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c->lastReceived = 0;
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c->revocationThreshold = 0;
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c->credential = CertificateOfOwnership();
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}
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std::sort(&(_remoteCoos[0]),&(_remoteCoos[ZT_MAX_CERTIFICATES_OF_OWNERSHIP]),_RemoteCredentialComp<CertificateOfOwnership>());
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return c;
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}
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bool Membership::_revokeCom(const Revocation &rev)
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{
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if (rev.threshold() > _comRevocationThreshold) {
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_comRevocationThreshold = rev.threshold();
|
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return true;
|
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}
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return false;
|
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}
|
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|
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bool Membership::_revokeCap(const Revocation &rev,const uint64_t now)
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{
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_RemoteCredential<Capability> *const *htmp = std::lower_bound(&(_remoteCaps[0]),&(_remoteCaps[ZT_MAX_NETWORK_CAPABILITIES]),(uint64_t)rev.credentialId(),_RemoteCredentialComp<Capability>());
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_RemoteCredential<Capability> *have = ((htmp != &(_remoteCaps[ZT_MAX_NETWORK_CAPABILITIES]))&&((*htmp)->id == (uint64_t)rev.credentialId())) ? *htmp : (_RemoteCredential<Capability> *)0;
|
||||
if (!have) have = _newCapability(rev.credentialId());
|
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if (rev.threshold() > have->revocationThreshold) {
|
||||
have->lastReceived = now;
|
||||
have->revocationThreshold = rev.threshold();
|
||||
return true;
|
||||
}
|
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return false;
|
||||
}
|
||||
|
||||
bool Membership::_revokeTag(const Revocation &rev,const uint64_t now)
|
||||
{
|
||||
_RemoteCredential<Tag> *const *htmp = std::lower_bound(&(_remoteTags[0]),&(_remoteTags[ZT_MAX_NETWORK_TAGS]),(uint64_t)rev.credentialId(),_RemoteCredentialComp<Tag>());
|
||||
_RemoteCredential<Tag> *have = ((htmp != &(_remoteTags[ZT_MAX_NETWORK_TAGS]))&&((*htmp)->id == (uint64_t)rev.credentialId())) ? *htmp : (_RemoteCredential<Tag> *)0;
|
||||
if (!have) have = _newTag(rev.credentialId());
|
||||
if (rev.threshold() > have->revocationThreshold) {
|
||||
have->lastReceived = now;
|
||||
have->revocationThreshold = rev.threshold();
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
bool Membership::_revokeCoo(const Revocation &rev,const uint64_t now)
|
||||
{
|
||||
_RemoteCredential<CertificateOfOwnership> *const *htmp = std::lower_bound(&(_remoteCoos[0]),&(_remoteCoos[ZT_MAX_CERTIFICATES_OF_OWNERSHIP]),(uint64_t)rev.credentialId(),_RemoteCredentialComp<CertificateOfOwnership>());
|
||||
_RemoteCredential<CertificateOfOwnership> *have = ((htmp != &(_remoteCoos[ZT_MAX_CERTIFICATES_OF_OWNERSHIP]))&&((*htmp)->id == (uint64_t)rev.credentialId())) ? *htmp : (_RemoteCredential<CertificateOfOwnership> *)0;
|
||||
if (!have) have = _newCoo(rev.credentialId());
|
||||
if (rev.threshold() > have->revocationThreshold) {
|
||||
have->lastReceived = now;
|
||||
have->revocationThreshold = rev.threshold();
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
} // namespace ZeroTier
|
||||
Reference in New Issue
Block a user