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Restore group announcement on Peer::receive() but centralize packet composition in one place.

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This commit is contained in:
Adam Ierymenko 2015-10-01 11:37:02 -07:00
parent a3db7d0728
commit 9405150b11
3 changed files with 137 additions and 137 deletions
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115
node/Network.cpp
View File

@ -141,6 +141,12 @@ void Network::multicastUnsubscribe(const MulticastGroup &mg)
_myMulticastGroups.swap(nmg);
}
bool Network::tryAnnounceMulticastGroupsTo(const SharedPtr<Peer> &peer)
{
Mutex::Lock _l(_lock);
return _tryAnnounceMulticastGroupsTo(RR->topology->rootAddresses(),_allMulticastGroups(),peer,RR->node->now());
}
bool Network::applyConfiguration(const SharedPtr<NetworkConfig> &conf)
{
if (_destroyed) // sanity check
@ -394,6 +400,63 @@ bool Network::_isAllowed(const SharedPtr<Peer> &peer) const
return false; // default position on any failure
}
// Used in Network::_announceMulticastGroups()
class _AnnounceMulticastGroupsToPeersWithActiveDirectPaths
{
public:
_AnnounceMulticastGroupsToPeersWithActiveDirectPaths(const RuntimeEnvironment *renv,Network *nw) :
_now(renv->node->now()),
RR(renv),
_network(nw),
_rootAddresses(renv->topology->rootAddresses()),
_allMulticastGroups(nw->_allMulticastGroups())
{}
inline void operator()(Topology &t,const SharedPtr<Peer> &p) { _network->_tryAnnounceMulticastGroupsTo(_rootAddresses,_allMulticastGroups,p,_now); }
private:
uint64_t _now;
const RuntimeEnvironment *RR;
Network *_network;
std::vector<Address> _rootAddresses;
std::vector<MulticastGroup> _allMulticastGroups;
};
bool Network::_tryAnnounceMulticastGroupsTo(const std::vector<Address> &alwaysAddresses,const std::vector<MulticastGroup> &allMulticastGroups,const SharedPtr<Peer> &peer,uint64_t now) const
{
if ( ( (peer->hasActiveDirectPath(now)) && ( _isAllowed(peer) || (peer->address() == this->controller()) ) ) || (std::find(alwaysAddresses.begin(),alwaysAddresses.end(),peer->address()) != alwaysAddresses.end()) ) {
Packet outp(peer->address(),RR->identity.address(),Packet::VERB_MULTICAST_LIKE);
for(std::vector<MulticastGroup>::const_iterator mg(allMulticastGroups.begin());mg!=allMulticastGroups.end();++mg) {
if ((outp.size() + 18) >= ZT_UDP_DEFAULT_PAYLOAD_MTU) {
outp.armor(peer->key(),true);
peer->send(RR,outp.data(),outp.size(),now);
outp.reset(peer->address(),RR->identity.address(),Packet::VERB_MULTICAST_LIKE);
}
// network ID, MAC, ADI
outp.append((uint64_t)_id);
mg->mac().appendTo(outp);
outp.append((uint32_t)mg->adi());
}
if (outp.size() > ZT_PROTO_MIN_PACKET_LENGTH) {
outp.armor(peer->key(),true);
peer->send(RR,outp.data(),outp.size(),now);
}
return true;
}
return false;
}
void Network::_announceMulticastGroups()
{
// Assumes _lock is locked
_AnnounceMulticastGroupsToPeersWithActiveDirectPaths afunc(RR,this);
RR->topology->eachPeer<_AnnounceMulticastGroupsToPeersWithActiveDirectPaths &>(afunc);
}
std::vector<MulticastGroup> Network::_allMulticastGroups() const
{
// Assumes _lock is locked
@ -408,56 +471,4 @@ std::vector<MulticastGroup> Network::_allMulticastGroups() const
return mgs;
}
// Used in Network::_announceMulticastGroups()
class _AnnounceMulticastGroupsToPeersWithActiveDirectPaths
{
public:
_AnnounceMulticastGroupsToPeersWithActiveDirectPaths(const RuntimeEnvironment *renv,Network *nw) :
RR(renv),
_now(renv->node->now()),
_network(nw),
_rootAddresses(renv->topology->rootAddresses()),
_allMulticastGroups(nw->_allMulticastGroups())
{}
inline void operator()(Topology &t,const SharedPtr<Peer> &p)
{
if ( ( (p->hasActiveDirectPath(_now)) && ( (_network->_isAllowed(p)) || (p->address() == _network->controller()) ) ) || (std::find(_rootAddresses.begin(),_rootAddresses.end(),p->address()) != _rootAddresses.end()) ) {
Packet outp(p->address(),RR->identity.address(),Packet::VERB_MULTICAST_LIKE);
for(std::vector<MulticastGroup>::iterator mg(_allMulticastGroups.begin());mg!=_allMulticastGroups.end();++mg) {
if ((outp.size() + 18) >= ZT_UDP_DEFAULT_PAYLOAD_MTU) {
outp.armor(p->key(),true);
p->send(RR,outp.data(),outp.size(),_now);
outp.reset(p->address(),RR->identity.address(),Packet::VERB_MULTICAST_LIKE);
}
// network ID, MAC, ADI
outp.append((uint64_t)_network->id());
mg->mac().appendTo(outp);
outp.append((uint32_t)mg->adi());
}
if (outp.size() > ZT_PROTO_MIN_PACKET_LENGTH) {
outp.armor(p->key(),true);
p->send(RR,outp.data(),outp.size(),_now);
}
}
}
private:
const RuntimeEnvironment *RR;
uint64_t _now;
Network *_network;
std::vector<Address> _rootAddresses;
std::vector<MulticastGroup> _allMulticastGroups;
};
void Network::_announceMulticastGroups()
{
// Assumes _lock is locked
_AnnounceMulticastGroupsToPeersWithActiveDirectPaths afunc(RR,this);
RR->topology->eachPeer<_AnnounceMulticastGroupsToPeersWithActiveDirectPaths &>(afunc);
}
} // namespace ZeroTier

11
node/Network.hpp
View File

@ -93,7 +93,7 @@ public:
/**
* @return Address of network's controller (most significant 40 bits of ID)
*/
inline Address controller() throw() { return Address(_id >> 24); }
inline Address controller() const throw() { return Address(_id >> 24); }
/**
* @param nwid Network ID
@ -140,6 +140,14 @@ public:
*/
void multicastUnsubscribe(const MulticastGroup &mg);
/**
* Announce multicast groups to a peer if that peer is authorized on this network
*
* @param peer Peer to try to announce multicast groups to
* @return True if peer was authorized and groups were announced
*/
bool tryAnnounceMulticastGroupsTo(const SharedPtr<Peer> &peer);
/**
* Apply a NetworkConfig to this network
*
@ -334,6 +342,7 @@ private:
ZT_VirtualNetworkStatus _status() const;
void _externalConfig(ZT_VirtualNetworkConfig *ec) const; // assumes _lock is locked
bool _isAllowed(const SharedPtr<Peer> &peer) const;
bool _tryAnnounceMulticastGroupsTo(const std::vector<Address> &rootAddresses,const std::vector<MulticastGroup> &allMulticastGroups,const SharedPtr<Peer> &peer,uint64_t now) const;
void _announceMulticastGroups();
std::vector<MulticastGroup> _allMulticastGroups() const;

46
node/Peer.cpp
View File

@ -96,6 +96,9 @@ void Peer::received(
Packet::Verb inReVerb)
{
const uint64_t now = RR->node->now();
bool needMulticastGroupAnnounce = false;
{
Mutex::Lock _l(_lock);
_lastReceive = now;
@ -155,41 +158,11 @@ void Peer::received(
}
}
}
}
/* Announce multicast groups of interest to direct peers if they are
* considered authorized members of a given network. Also announce to
* root servers and network controllers. */
/*
if ((pathIsConfirmed)&&((now - _lastAnnouncedTo) >= ((ZT_MULTICAST_LIKE_EXPIRE / 2) - 1000))) {
if ((now - _lastAnnouncedTo) >= ((ZT_MULTICAST_LIKE_EXPIRE / 2) - 1000)) {
_lastAnnouncedTo = now;
const bool isRoot = RR->topology->isRoot(_id);
Packet outp(_id.address(),RR->identity.address(),Packet::VERB_MULTICAST_LIKE);
const std::vector< SharedPtr<Network> > networks(RR->node->allNetworks());
for(std::vector< SharedPtr<Network> >::const_iterator n(networks.begin());n!=networks.end();++n) {
if ( (isRoot) || ((*n)->isAllowed(_id.address())) || (_id.address() == (*n)->controller()) ) {
const std::vector<MulticastGroup> mgs((*n)->allMulticastGroups());
for(std::vector<MulticastGroup>::const_iterator mg(mgs.begin());mg!=mgs.end();++mg) {
if ((outp.size() + 18) > ZT_UDP_DEFAULT_PAYLOAD_MTU) {
outp.armor(_key,true);
RR->node->putPacket(localAddr,remoteAddr,outp.data(),outp.size());
outp.reset(_id.address(),RR->identity.address(),Packet::VERB_MULTICAST_LIKE);
}
// network ID, MAC, ADI
outp.append((uint64_t)(*n)->id());
mg->mac().appendTo(outp);
outp.append((uint32_t)mg->adi());
}
}
}
if (outp.size() > ZT_PROTO_MIN_PACKET_LENGTH) {
outp.armor(_key,true);
RR->node->putPacket(localAddr,remoteAddr,outp.data(),outp.size());
}
}
*/
needMulticastGroupAnnounce = true;
}
if ((verb == Packet::VERB_FRAME)||(verb == Packet::VERB_EXT_FRAME))
@ -198,6 +171,13 @@ void Peer::received(
_lastMulticastFrame = now;
}
if (needMulticastGroupAnnounce) {
const std::vector< SharedPtr<Network> > networks(RR->node->allNetworks());
for(std::vector< SharedPtr<Network> >::const_iterator n(networks.begin());n!=networks.end();++n)
(*n)->tryAnnounceMulticastGroupsTo(SharedPtr<Peer>(this));
}
}
void Peer::attemptToContactAt(const RuntimeEnvironment *RR,const InetAddress &localAddr,const InetAddress &atAddress,uint64_t now)
{
// _lock not required here since _id is immutable and nothing else is accessed