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-rw-r--r--node/IncomingPacket.cpp17
-rw-r--r--world/README.md6
2 files changed, 20 insertions, 3 deletions
diff --git a/node/IncomingPacket.cpp b/node/IncomingPacket.cpp
index 3c6268ed..79a700f6 100644
--- a/node/IncomingPacket.cpp
+++ b/node/IncomingPacket.cpp
@@ -335,9 +335,21 @@ bool IncomingPacket::_doOK(const RuntimeEnvironment *RR,const SharedPtr<Peer> &p
const unsigned int vMinor = (*this)[ZT_PROTO_VERB_HELLO__OK__IDX_MINOR_VERSION];
const unsigned int vRevision = at<uint16_t>(ZT_PROTO_VERB_HELLO__OK__IDX_REVISION);
+ const bool trusted = RR->topology->isRoot(peer->identity());
+
InetAddress destAddr;
- if ((ZT_PROTO_VERB_HELLO__OK__IDX_REVISION + 2) < size()) // ZeroTier One < 1.0.3 did not include this field
- destAddr.deserialize(*this,ZT_PROTO_VERB_HELLO__OK__IDX_REVISION + 2);
+ unsigned int ptr = ZT_PROTO_VERB_HELLO__OK__IDX_REVISION + 2;
+ if (ptr < size()) // ZeroTier One < 1.0.3 did not include this field
+ ptr += destAddr.deserialize(*this,ptr);
+ if ((trusted)&&((ptr + 2) <= size())) { // older versions also did not include this field, and right now we only use if from a root
+ World worldUpdate;
+ const unsigned int worldLen = at<uint16_t>(ptr); ptr += 2;
+ if (worldLen > 0) {
+ World w;
+ w.deserialize(*this,ptr);
+ RR->topology->worldUpdateIfValid(w);
+ }
+ }
if (vProto < ZT_PROTO_VERSION_MIN) {
TRACE("%s(%s): OK(HELLO) dropped, protocol version too old",source().toString().c_str(),_remoteAddress.toString().c_str());
@@ -349,7 +361,6 @@ bool IncomingPacket::_doOK(const RuntimeEnvironment *RR,const SharedPtr<Peer> &p
peer->addDirectLatencyMeasurment(latency);
peer->setRemoteVersion(vProto,vMajor,vMinor,vRevision);
- bool trusted = RR->topology->isRoot(peer->identity());
if (destAddr)
RR->sa->iam(peer->address(),_remoteAddress,destAddr,trusted,RR->node->now());
} break;
diff --git a/world/README.md b/world/README.md
new file mode 100644
index 00000000..4e0820e6
--- /dev/null
+++ b/world/README.md
@@ -0,0 +1,6 @@
+World Definitions and Generator Code
+======
+
+This code can be used to generate a world definition. Actual generation was performed on an airgapped secure system.
+
+Ordinary users probably will not need to use this.