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One more fix for discarding hops exceeded packets.

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This commit is contained in:
Adam Ierymenko 2019-09-03 13:01:01 -07:00
parent 8e7e3c2b11
commit b6c5ba264b
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GPG Key ID: C8877CF2D7A5D7F3
1 changed files with 9 additions and 5 deletions
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14
root/root.cpp
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@ -171,6 +171,7 @@ static Meter inputRate;
static Meter outputRate;
static Meter forwardRate;
static Meter siblingForwardRate;
static Meter discardedForwardRate;
static std::vector< SharedPtr<RootPeer> > siblings;
static std::unordered_map< uint64_t,std::unordered_map< MulticastGroup,std::unordered_map< Address,int64_t,AddressHasher >,MulticastGroupHasher > > multicastSubscriptions;
@ -485,8 +486,10 @@ static void handlePacket(const int v4s,const int v6s,const InetAddress *const ip
}
}
}
if (toAddrs.empty())
if (toAddrs.empty()) {
discardedForwardRate.log(now,pkt.size());
return;
}
if (introduce) {
std::lock_guard<std::mutex> l(peersByVirtAddr_l);
@ -560,20 +563,20 @@ static void handlePacket(const int v4s,const int v6s,const InetAddress *const ip
if (fragment) {
if (reinterpret_cast<Packet::Fragment *>(&pkt)->incrementHops() >= ZT_RELAY_MAX_HOPS) {
//printf("%s refused to forward to %s: max hop count exceeded" ZT_EOL_S,ip->toString(ipstr),dest.toString(astr));
discardedForwardRate.log(now,pkt.size());
return;
}
} else {
if (pkt.incrementHops() >= ZT_PROTO_MAX_HOPS) {
if (pkt.incrementHops() >= ZT_RELAY_MAX_HOPS) {
//printf("%s refused to forward to %s: max hop count exceeded" ZT_EOL_S,ip->toString(ipstr),dest.toString(astr));
discardedForwardRate.log(now,pkt.size());
return;
}
}
for(auto i=toAddrs.begin();i!=toAddrs.end();++i) {
//printf("%s -> %s for %s -> %s (%u bytes)" ZT_EOL_S,ip->toString(ipstr),i->first->toString(ipstr2),source.toString(astr),dest.toString(astr2),pkt.size());
if (sendto(i->first->isV4() ? v4s : v6s,pkt.data(),pkt.size(),SENDTO_FLAGS,(const struct sockaddr *)i->first,(socklen_t)(i->first->isV4() ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6))) <= 0) {
printf("* write error forwarding packet to %s: %s" ZT_EOL_S,i->first->toString(ipstr),strerror(errno));
} else {
if (sendto(i->first->isV4() ? v4s : v6s,pkt.data(),pkt.size(),SENDTO_FLAGS,(const struct sockaddr *)i->first,(socklen_t)(i->first->isV4() ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6))) > 0) {
outputRate.log(now,pkt.size());
forwardRate.log(now,pkt.size());
if (i->second->sibling)
@ -1122,6 +1125,7 @@ int main(int argc,char **argv)
fprintf(sf,"Output BPS : %.4f" ZT_EOL_S,outputRate.perSecond(now));
fprintf(sf,"Forwarded BPS : %.4f" ZT_EOL_S,forwardRate.perSecond(now));
fprintf(sf,"Sibling Forwarded BPS : %.4f" ZT_EOL_S,siblingForwardRate.perSecond(now));
fprintf(sf,"Discarded Forward BPS : %.4f" ZT_EOL_S,discardedForwardRate.perSecond(now));
fclose(sf);
std::string statsFilePath2(statsRoot);