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Fix gating of multicast GATHER replies since these can come from upstream, etc., and fix an issue with sending ECHO to recheck marginal paths.

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This commit is contained in:
Adam Ierymenko 2016-09-09 09:32:00 -07:00
parent 0d4109a9f1
commit ef87069957
5 changed files with 27 additions and 7 deletions
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4
node/IncomingPacket.cpp
View File

@ -443,7 +443,7 @@ bool IncomingPacket::_doOK(const RuntimeEnvironment *RR,const SharedPtr<Peer> &p
case Packet::VERB_MULTICAST_GATHER: {
const uint64_t nwid = at<uint64_t>(ZT_PROTO_VERB_MULTICAST_GATHER__OK__IDX_NETWORK_ID);
SharedPtr<Network> network(RR->node->network(nwid));
if ((network)&&(network->gate(peer,verb(),packetId()))) {
if ((network)&&(network->gateMulticastGather(peer,verb(),packetId()))) {
const MulticastGroup mg(MAC(field(ZT_PROTO_VERB_MULTICAST_GATHER__OK__IDX_MAC,6),6),at<uint32_t>(ZT_PROTO_VERB_MULTICAST_GATHER__OK__IDX_ADI));
//TRACE("%s(%s): OK(MULTICAST_GATHER) %.16llx/%s length %u",source().toString().c_str(),_path->address().toString().c_str(),nwid,mg.toString().c_str(),size());
const unsigned int count = at<uint16_t>(ZT_PROTO_VERB_MULTICAST_GATHER__OK__IDX_GATHER_RESULTS + 4);
@ -469,7 +469,7 @@ bool IncomingPacket::_doOK(const RuntimeEnvironment *RR,const SharedPtr<Peer> &p
network->addCredential(com);
}
if (network->gate(peer,verb(),packetId())) {
if (network->gateMulticastGather(peer,verb(),packetId())) {
if ((flags & 0x02) != 0) {
// OK(MULTICAST_FRAME) includes implicit gather results
offset += ZT_PROTO_VERB_MULTICAST_FRAME__OK__IDX_COM_AND_GATHER_RESULTS;

5
node/Network.cpp
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@ -1093,6 +1093,11 @@ bool Network::gate(const SharedPtr<Peer> &peer,const Packet::Verb verb,const uin
return false;
}
bool Network::gateMulticastGather(const SharedPtr<Peer> &peer,const Packet::Verb verb,const uint64_t packetId)
{
return ( (peer->address() == controller()) || RR->topology->isUpstream(peer->identity()) || gate(peer,verb,packetId) || _config.isAnchor(peer->address()) );
}
bool Network::recentlyAllowedOnNetwork(const SharedPtr<Peer> &peer) const
{
Mutex::Lock _l(_lock);

5
node/Network.hpp
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@ -257,6 +257,11 @@ public:
*/
bool gate(const SharedPtr<Peer> &peer,const Packet::Verb verb,const uint64_t packetId);
/**
* Check whether this peer is allowed to provide multicast info for this network
*/
bool gateMulticastGather(const SharedPtr<Peer> &peer,const Packet::Verb verb,const uint64_t packetId);
/**
* @param peer Peer to check
* @return True if peer has recently been a valid member of this network

13
node/NetworkConfig.hpp
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@ -285,6 +285,19 @@ public:
return r;
}
/**
* @param a Address to check
* @return True if address is an anchor
*/
inline bool isAnchor(const Address &a) const
{
for(unsigned int i=0;i<specialistCount;++i) {
if ((a == specialists[i])&&((specialists[i] & ZT_NETWORKCONFIG_SPECIALIST_TYPE_ANCHOR) != 0))
return true;
}
return false;
}
/**
* @param fromPeer Peer attempting to bridge other Ethernet peers onto network
* @return True if this network allows bridging

7
node/Switch.cpp
View File

@ -759,11 +759,8 @@ bool Switch::_trySend(const Packet &packet,bool encrypt)
SharedPtr<Path> viaPath(peer->getBestPath(now,false));
if ( (viaPath) && (!viaPath->alive(now)) && (!RR->topology->isRoot(peer->identity())) ) {
if ((now - viaPath->lastOut()) > std::max((now - viaPath->lastIn()) >> 2,(uint64_t)ZT_PATH_MIN_REACTIVATE_INTERVAL)) {
Packet outp(peer->address(),RR->identity.address(),Packet::VERB_ECHO);
outp.armor(peer->key(),true);
viaPath->send(RR,outp.data(),outp.size(),now);
}
if ((now - viaPath->lastOut()) > std::max((now - viaPath->lastIn()) * 4,(uint64_t)ZT_PATH_MIN_REACTIVATE_INTERVAL))
peer->attemptToContactAt(viaPath->localAddress(),viaPath->address(),now);
viaPath.zero();
}
if (!viaPath) {