Certificate of ownership -- used to secure against IP address spoofing, especially for IPv4 and regular IPv6.
This commit is contained in:
Adam Ierymenko
parent
33b94e8478
commit
10185e92fa
15 changed files with 553 additions and 97 deletions
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@ -37,6 +37,7 @@ Membership::Membership() :
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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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@ -62,8 +63,19 @@ void Membership::pushCredentials(const RuntimeEnvironment *RR,const uint64_t now
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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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while ((tagPtr < sendTagCount)||(sendCom)||(sendCap)) {
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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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@ -82,7 +94,7 @@ void Membership::pushCredentials(const RuntimeEnvironment *RR,const uint64_t now
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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) + 32) < ZT_PROTO_MAX_PACKET_LENGTH)) {
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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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@ -91,6 +103,15 @@ void Membership::pushCredentials(const RuntimeEnvironment *RR,const uint64_t now
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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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@ -98,14 +119,14 @@ void Membership::pushCredentials(const RuntimeEnvironment *RR,const uint64_t now
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const Capability *Membership::getCapability(const NetworkConfig &nconf,const uint32_t id) const
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{
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const _RemoteCapability *const *c = std::lower_bound(&(_remoteCaps[0]),&(_remoteCaps[ZT_MAX_NETWORK_CAPABILITIES]),(uint64_t)id,_RemoteCredentialSorter<_RemoteCapability>());
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return ( ((c != &(_remoteCaps[ZT_MAX_NETWORK_CAPABILITIES]))&&((*c)->id == (uint64_t)id)) ? ((((*c)->lastReceived)&&(_isCredentialTimestampValid(nconf,(*c)->cap,**c))) ? &((*c)->cap) : (const Capability *)0) : (const Capability *)0);
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const _RemoteCredential<Capability> *const *c = std::lower_bound(&(_remoteCaps[0]),&(_remoteCaps[ZT_MAX_NETWORK_CAPABILITIES]),(uint64_t)id,_RemoteCredentialComp<Capability>());
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return ( ((c != &(_remoteCaps[ZT_MAX_NETWORK_CAPABILITIES]))&&((*c)->id == (uint64_t)id)) ? ((((*c)->lastReceived)&&(_isCredentialTimestampValid(nconf,(*c)->credential,**c))) ? &((*c)->credential) : (const Capability *)0) : (const Capability *)0);
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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 _RemoteTag *const *t = std::lower_bound(&(_remoteTags[0]),&(_remoteTags[ZT_MAX_NETWORK_TAGS]),(uint64_t)id,_RemoteCredentialSorter<_RemoteTag>());
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return ( ((t != &(_remoteTags[ZT_MAX_NETWORK_CAPABILITIES]))&&((*t)->id == (uint64_t)id)) ? ((((*t)->lastReceived)&&(_isCredentialTimestampValid(nconf,(*t)->tag,**t))) ? &((*t)->tag) : (const Tag *)0) : (const Tag *)0);
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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)->credential,**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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@ -141,14 +162,14 @@ Membership::AddCredentialResult Membership::addCredential(const RuntimeEnvironme
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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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_RemoteTag *const *htmp = std::lower_bound(&(_remoteTags[0]),&(_remoteTags[ZT_MAX_NETWORK_TAGS]),(uint64_t)tag.id(),_RemoteCredentialSorter<_RemoteTag>());
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_RemoteTag *have = ((htmp != &(_remoteTags[ZT_MAX_NETWORK_TAGS]))&&((*htmp)->id == (uint64_t)tag.id())) ? *htmp : (_RemoteTag *)0;
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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,tag,*have)) || (have->tag.timestamp() > tag.timestamp()) ) {
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if ( (!_isCredentialTimestampValid(nconf,tag,*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->tag == tag) {
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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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@ -162,7 +183,7 @@ Membership::AddCredentialResult Membership::addCredential(const RuntimeEnvironme
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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->tag = tag;
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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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@ -171,14 +192,14 @@ Membership::AddCredentialResult Membership::addCredential(const RuntimeEnvironme
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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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_RemoteCapability *const *htmp = std::lower_bound(&(_remoteCaps[0]),&(_remoteCaps[ZT_MAX_NETWORK_CAPABILITIES]),(uint64_t)cap.id(),_RemoteCredentialSorter<_RemoteCapability>());
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_RemoteCapability *have = ((htmp != &(_remoteCaps[ZT_MAX_NETWORK_CAPABILITIES]))&&((*htmp)->id == (uint64_t)cap.id())) ? *htmp : (_RemoteCapability *)0;
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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,cap,*have)) || (have->cap.timestamp() > cap.timestamp()) ) {
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if ( (!_isCredentialTimestampValid(nconf,cap,*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->cap == cap) {
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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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@ -192,7 +213,7 @@ Membership::AddCredentialResult Membership::addCredential(const RuntimeEnvironme
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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->cap = cap;
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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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@ -209,13 +230,15 @@ Membership::AddCredentialResult Membership::addCredential(const RuntimeEnvironme
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switch(rev.type()) {
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default:
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//case Revocation::CREDENTIAL_TYPE_ALL:
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return ( (_revokeCom(rev)||_revokeCap(rev,now)||_revokeTag(rev,now)) ? ADD_ACCEPTED_NEW : ADD_ACCEPTED_REDUNDANT );
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return ( (_revokeCom(rev)||_revokeCap(rev,now)||_revokeTag(rev,now)||_revokeCoo(rev,now)) ? ADD_ACCEPTED_NEW : ADD_ACCEPTED_REDUNDANT );
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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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@ -223,9 +246,40 @@ Membership::AddCredentialResult Membership::addCredential(const RuntimeEnvironme
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}
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}
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Membership::_RemoteTag *Membership::_newTag(const uint64_t id)
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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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_RemoteTag *t = NULL;
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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,coo,*have)) || (have->credential.timestamp() > coo.timestamp()) ) {
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TRACE("addCredential(CertificateOfOwnership) 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 == coo) {
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TRACE("addCredential(CertificateOfOwnership) 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(coo.verify(RR)) {
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default:
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TRACE("addCredential(CertificateOfOwnership) 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(CertificateOfOwnership) for %s on %.16llx ACCEPTED (new)",cap.issuedTo().toString().c_str(),cap.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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@ -236,21 +290,21 @@ Membership::_RemoteTag *Membership::_newTag(const uint64_t id)
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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->tag = Tag();
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}
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std::sort(&(_remoteTags[0]),&(_remoteTags[ZT_MAX_NETWORK_TAGS]),_RemoteCredentialSorter<_RemoteTag>());
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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]));
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return t;
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}
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Membership::_RemoteCapability *Membership::_newCapability(const uint64_t id)
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Membership::_RemoteCredential<Capability> *Membership::_newCapability(const uint64_t id)
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{
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_RemoteCapability *c = NULL;
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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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@ -266,10 +320,35 @@ Membership::_RemoteCapability *Membership::_newCapability(const uint64_t id)
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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->cap = Capability();
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c->credential = Capability();
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}
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std::sort(&(_remoteCaps[0]),&(_remoteCaps[ZT_MAX_NETWORK_CAPABILITIES]),_RemoteCredentialSorter<_RemoteCapability>());
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std::sort(&(_remoteCaps[0]),&(_remoteCaps[ZT_MAX_NETWORK_CAPABILITIES]));
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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]));
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return c;
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}
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@ -284,8 +363,8 @@ bool Membership::_revokeCom(const Revocation &rev)
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bool Membership::_revokeCap(const Revocation &rev,const uint64_t now)
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{
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_RemoteCapability *const *htmp = std::lower_bound(&(_remoteCaps[0]),&(_remoteCaps[ZT_MAX_NETWORK_CAPABILITIES]),(uint64_t)rev.credentialId(),_RemoteCredentialSorter<_RemoteCapability>());
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_RemoteCapability *have = ((htmp != &(_remoteCaps[ZT_MAX_NETWORK_CAPABILITIES]))&&((*htmp)->id == (uint64_t)rev.credentialId())) ? *htmp : (_RemoteCapability *)0;
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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;
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if (!have) have = _newCapability(rev.credentialId());
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if (rev.threshold() > have->revocationThreshold) {
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have->lastReceived = now;
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@ -297,8 +376,8 @@ bool Membership::_revokeCap(const Revocation &rev,const uint64_t now)
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bool Membership::_revokeTag(const Revocation &rev,const uint64_t now)
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{
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_RemoteTag *const *htmp = std::lower_bound(&(_remoteTags[0]),&(_remoteTags[ZT_MAX_NETWORK_TAGS]),(uint64_t)rev.credentialId(),_RemoteCredentialSorter<_RemoteTag>());
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_RemoteTag *have = ((htmp != &(_remoteTags[ZT_MAX_NETWORK_TAGS]))&&((*htmp)->id == (uint64_t)rev.credentialId())) ? *htmp : (_RemoteTag *)0;
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_RemoteCredential<Tag> *const *htmp = std::lower_bound(&(_remoteTags[0]),&(_remoteTags[ZT_MAX_NETWORK_TAGS]),(uint64_t)rev.credentialId(),_RemoteCredentialComp<Tag>());
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_RemoteCredential<Tag> *have = ((htmp != &(_remoteTags[ZT_MAX_NETWORK_TAGS]))&&((*htmp)->id == (uint64_t)rev.credentialId())) ? *htmp : (_RemoteCredential<Tag> *)0;
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if (!have) have = _newTag(rev.credentialId());
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if (rev.threshold() > have->revocationThreshold) {
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have->lastReceived = now;
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@ -308,4 +387,17 @@ bool Membership::_revokeTag(const Revocation &rev,const uint64_t now)
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return false;
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}
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bool Membership::_revokeCoo(const Revocation &rev,const uint64_t now)
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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)rev.credentialId(),_RemoteCredentialComp<CertificateOfOwnership>());
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_RemoteCredential<CertificateOfOwnership> *have = ((htmp != &(_remoteCoos[ZT_MAX_CERTIFICATES_OF_OWNERSHIP]))&&((*htmp)->id == (uint64_t)rev.credentialId())) ? *htmp : (_RemoteCredential<CertificateOfOwnership> *)0;
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if (!have) have = _newCoo(rev.credentialId());
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if (rev.threshold() > have->revocationThreshold) {
|
||||
have->lastReceived = now;
|
||||
have->revocationThreshold = rev.threshold();
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
} // namespace ZeroTier
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue