ExternalVendorCode/ZeroTierOne
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Adam Ierymenko 2019-08-28 15:07:38 -07:00
parent d33f7d2bf5
commit 0e627f4f68
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GPG Key ID: C8877CF2D7A5D7F3
1 changed files with 54 additions and 24 deletions
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78
root/root.cpp
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@ -62,6 +62,7 @@
#include <vector>
#include <iostream>
#include <unordered_map>
#include <unordered_set>
#include <vector>
#include <atomic>
#include <mutex>
@ -80,9 +81,6 @@ struct PeerInfo
InetAddress ip4,ip6;
int64_t lastReceive;
std::unordered_map< uint64_t,std::unordered_map< MulticastGroup,int64_t,MulticastGroupHasher > > multicastGroups;
Mutex multicastGroups_l;
AtomicCounter __refCount;
ZT_ALWAYS_INLINE ~PeerInfo() { Utils::burn(key,sizeof(key)); }
@ -92,12 +90,13 @@ static Identity self;
static std::atomic_bool run;
static std::vector< SharedPtr<PeerInfo> > newPeers;
static std::unordered_map< uint64_t,std::unordered_map< MulticastGroup,std::unordered_map< Address,int64_t,AddressHasher >,MulticastGroupHasher > > multicastSubscriptions;
static std::unordered_map< Identity,SharedPtr<PeerInfo>,IdentityHasher > peersByIdentity;
static std::unordered_map< Address,std::set< SharedPtr<PeerInfo> >,AddressHasher > peersByVirtAddr;
static std::unordered_map< InetAddress,std::set< SharedPtr<PeerInfo> >,InetAddressHasher > peersByPhysAddr;
static std::mutex newPeers_l;
static std::mutex multicastSubscriptions_l;
static std::mutex peersByIdentity_l;
static std::mutex peersByVirtAddr_l;
static std::mutex peersByPhysAddr_l;
@ -197,37 +196,68 @@ static void handlePacket(const int sock,const InetAddress *const ip,Packet &pkt)
switch(pkt.verb()) {
case Packet::VERB_HELLO: {
if (pkt.source() == 0x89e92ceee5) {
printf("ME!\n");
const uint64_t origId = pkt.packetId();
const uint64_t ts = pkt.template at<uint64_t>(ZT_PROTO_VERB_HELLO_IDX_TIMESTAMP);
pkt.reset(pkt.source(),self.address(),Packet::VERB_OK);
pkt.append((uint8_t)Packet::VERB_HELLO);
pkt.append(origId);
pkt.append(ts);
pkt.append((uint8_t)ZT_PROTO_VERSION);
pkt.append((uint8_t)1);
pkt.append((uint8_t)9);
pkt.append((uint16_t)0);
ip->serialize(pkt);
pkt.armor(peer->key,true);
sendto(sock,pkt.data(),pkt.size(),0,(const struct sockaddr *)ip,(socklen_t)((ip->ss_family == AF_INET) ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6)));
printf("%s <- OK(HELLO)" ZT_EOL_S,ip->toString(ipstr));
}
const uint64_t origId = pkt.packetId();
const uint64_t ts = pkt.template at<uint64_t>(ZT_PROTO_VERB_HELLO_IDX_TIMESTAMP);
pkt.reset(pkt.source(),self.address(),Packet::VERB_OK);
pkt.append((uint8_t)Packet::VERB_HELLO);
pkt.append(origId);
pkt.append(ts);
pkt.append((uint8_t)ZT_PROTO_VERSION);
pkt.append((uint8_t)0);
pkt.append((uint8_t)0);
pkt.append((uint16_t)0);
ip->serialize(pkt);
pkt.armor(peer->key,true);
sendto(sock,pkt.data(),pkt.size(),0,(const struct sockaddr *)ip,(socklen_t)((ip->ss_family == AF_INET) ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6)));
//printf("%s <- OK(HELLO)" ZT_EOL_S,ip->toString(ipstr));
} break;
case Packet::VERB_MULTICAST_LIKE: {
printf("LIKE\n");
Mutex::Lock l(peer->multicastGroups_l);
std::lock_guard<std::mutex> l(multicastSubscriptions_l);
for(unsigned int ptr=ZT_PACKET_IDX_PAYLOAD;(ptr+18)<=pkt.size();ptr+=18) {
const uint64_t nwid = pkt.template at<uint64_t>(ptr);
const MulticastGroup mg(MAC(pkt.field(ptr + 8,6),6),pkt.template at<uint32_t>(ptr + 14));
peer->multicastGroups[nwid][mg] = now;
multicastSubscriptions[nwid][mg][peer->id.address()] = now;
printf("%s subscribes to %s/%.8lx on network %.16llx" ZT_EOL_S,ip->toString(ipstr),mg.mac().toString(tmpstr),(unsigned long)mg.adi(),(unsigned long long)nwid);
}
} break;
case Packet::VERB_MULTICAST_GATHER: {
const uint64_t nwid = pkt.template at<uint64_t>(ZT_PROTO_VERB_MULTICAST_GATHER_IDX_NETWORK_ID);
const unsigned int flags = pkt[ZT_PROTO_VERB_MULTICAST_GATHER_IDX_FLAGS];
const MulticastGroup mg(MAC(pkt.field(ZT_PROTO_VERB_MULTICAST_GATHER_IDX_MAC,6),6),pkt.template at<uint32_t>(ZT_PROTO_VERB_MULTICAST_GATHER_IDX_ADI));
unsigned int gatherLimit = pkt.template at<uint32_t>(ZT_PROTO_VERB_MULTICAST_GATHER_IDX_GATHER_LIMIT);
if (gatherLimit > 255)
gatherLimit = 255;
const uint64_t origId = pkt.packetId();
pkt.reset(pkt.source(),self.address(),Packet::VERB_OK);
pkt.append((uint8_t)Packet::VERB_MULTICAST_GATHER);
pkt.append(origId);
pkt.append(nwid);
mg.mac().appendTo(pkt);
pkt.append((uint32_t)mg.adi());
{
std::lock_guard<std::mutex> l(multicastSubscriptions_l);
auto forNet = multicastSubscriptions.find(nwid);
if (forNet != multicastSubscriptions.end()) {
auto forGroup = forNet->second.find(mg);
if (forGroup != forNet->second.end()) {
pkt.append((uint32_t)forGroup->second.size());
pkt.append((uint16_t)std::min(std::min((unsigned int)forGroup->second.size(),(unsigned int)65535),gatherLimit));
auto g = forGroup->second.begin();
unsigned int l = 0;
for(;((l<gatherLimit)&&(g!=forGroup->second.end()));++l,++g)
g->first.appendTo(pkt);
if (l > 0) {
sendto(sock,pkt.data(),pkt.size(),0,(const struct sockaddr *)ip,(socklen_t)((ip->ss_family == AF_INET) ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6)));
printf("%s gathered %u subscribers to %s/%.8lx on network %.16llx" ZT_EOL_S,ip->toString(ipstr),l,mg.mac().toString(tmpstr),(unsigned long)mg.adi(),(unsigned long long)nwid);
}
}
}
}
} break;
default:
@ -270,7 +300,7 @@ static void handlePacket(const int sock,const InetAddress *const ip,Packet &pkt)
for(auto i=toAddrs.begin();i!=toAddrs.end();++i) {
printf("%s -> %s for %s" ZT_EOL_S,ip->toString(ipstr),i->toString(ipstr2),pkt.destination().toString(astr));
//sendto(sock,pkt.data(),pkt.size(),0,(const struct sockaddr *)&(*i),(socklen_t)((i->ss_family == AF_INET) ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6)));
sendto(sock,pkt.data(),pkt.size(),0,(const struct sockaddr *)&(*i),(socklen_t)((i->ss_family == AF_INET) ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6)));
}
}