summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--node/Constants.hpp2
-rw-r--r--node/Multicaster.hpp66
-rw-r--r--node/Network.hpp13
-rw-r--r--node/Packet.hpp79
-rw-r--r--node/Switch.cpp119
5 files changed, 194 insertions, 85 deletions
diff --git a/node/Constants.hpp b/node/Constants.hpp
index 61044fed..67d84e3e 100644
--- a/node/Constants.hpp
+++ b/node/Constants.hpp
@@ -240,7 +240,7 @@ error_no_ZT_ARCH_defined;
/**
* Expiration time in ms for multicast history items
*/
-#define ZT_MULTICAST_DEDUP_HISTORY_EXPIRE 8000
+#define ZT_MULTICAST_DEDUP_HISTORY_EXPIRE 4000
/**
* Number of bits to randomly "decay" in bloom filter per hop
diff --git a/node/Multicaster.hpp b/node/Multicaster.hpp
index 190c3033..03a94ca2 100644
--- a/node/Multicaster.hpp
+++ b/node/Multicaster.hpp
@@ -31,11 +31,14 @@
#include <stdint.h>
#include <string.h>
+#include <openssl/sha.h>
+
#include <utility>
#include <algorithm>
#include <map>
#include <set>
#include <vector>
+#include <string>
#include "Constants.hpp"
#include "Buffer.hpp"
@@ -46,6 +49,7 @@
#include "Address.hpp"
#include "SharedPtr.hpp"
#include "BloomFilter.hpp"
+#include "Identity.hpp"
// Maximum sample size to pick during choice of multicast propagation peers
#define ZT_MULTICAST_PICK_MAX_SAMPLE_SIZE 64
@@ -68,11 +72,50 @@ public:
typedef BloomFilter<ZT_PROTO_VERB_MULTICAST_FRAME_BLOOM_FILTER_SIZE_BITS> MulticastBloomFilter;
Multicaster()
+ throw()
{
memset(_multicastHistory,0,sizeof(_multicastHistory));
}
/**
+ * Generate a signature of a multicast packet using an identity
+ *
+ * @param id Identity to sign with (must have secret key portion)
+ * @param from MAC address of sender
+ * @param to Multicast group
+ * @param etherType 16-bit ethernet type
+ * @param data Ethernet frame data
+ * @param len Length of frame
+ * @return ECDSA signature
+ */
+ static inline std::string signMulticastPacket(const Identity &id,const MAC &from,const MulticastGroup &to,unsigned int etherType,const void *data,unsigned int len)
+ {
+ unsigned char digest[32];
+ _hashMulticastPacketForSig(from,to,etherType,data,len,digest);
+ return id.sign(digest);
+ }
+
+ /**
+ * Verify a signature from a multicast packet
+ *
+ * @param id Identity of original signer
+ * @param from MAC address of sender
+ * @param to Multicast group
+ * @param etherType 16-bit ethernet type
+ * @param data Ethernet frame data
+ * @param len Length of frame
+ * @param signature ECDSA signature
+ * @param siglen Length of signature in bytes
+ * @return ECDSA signature
+ */
+ static bool verifyMulticastPacket(const Identity &id,const MAC &from,const MulticastGroup &to,unsigned int etherType,const void *data,unsigned int len,const void *signature,unsigned int siglen)
+ {
+ unsigned char digest[32];
+ _hashMulticastPacketForSig(from,to,etherType,data,len,digest);
+ return id.verify(digest,signature,siglen);
+ }
+
+ /**
* Update the most recent LIKE time for an address in a given multicast group on a given network
*
* @param nwid Network ID
@@ -257,6 +300,29 @@ private:
}
};
+ static inline void _hashMulticastPacketForSig(const MAC &from,const MulticastGroup &to,unsigned int etherType,const void *data,unsigned int len,unsigned char *digest)
+ throw()
+ {
+ unsigned char zero = 0;
+ SHA256_CTX sha;
+ SHA256_Init(&sha);
+ uint64_t _nwid = Utils::hton(network->id());
+ SHA256_Update(&sha,(unsigned char *)&_nwid,sizeof(_nwid));
+ SHA256_Update(&sha,&zero,1);
+ SHA256_Update(&sha,(unsigned char *)from.data,6);
+ SHA256_Update(&sha,&zero,1);
+ SHA256_Update(&sha,(unsigned char *)mg.mac().data,6);
+ SHA256_Update(&sha,&zero,1);
+ uint32_t _adi = Utils::hton(mg.adi());
+ SHA256_Update(&sha,(unsigned char *)&_adi,sizeof(_adi));
+ SHA256_Update(&sha,&zero,1);
+ uint16_t _etype = Utils::hton((uint16_t)etherType);
+ SHA256_Update(&sha,(unsigned char *)&_etype,sizeof(_etype));
+ SHA256_Update(&sha,&zero,1);
+ SHA256_Update(&sha,(unsigned char *)data,len);
+ SHA256_Final(digest,&sha);
+ }
+
// [0] - CRC, [1] - timestamp
uint64_t _multicastHistory[ZT_MULTICAST_DEDUP_HISTORY_LENGTH][2];
diff --git a/node/Network.hpp b/node/Network.hpp
index ddb8930f..417688f0 100644
--- a/node/Network.hpp
+++ b/node/Network.hpp
@@ -113,19 +113,6 @@ public:
}
/**
- * Shortcut to check open(), whether MAC is ZeroTier, then isMember()
- *
- * @param mac MAC address to check
- * @return True if MAC is allowed
- */
- inline bool isAllowed(const MAC &mac) const
- throw()
- {
- Mutex::Lock _l(_lock);
- return ((_open)||((mac.isZeroTier())&&(_members.count(Address(mac)) > 0)));
- }
-
- /**
* @return True if network is open (no membership required)
*/
inline bool open() const
diff --git a/node/Packet.hpp b/node/Packet.hpp
index 05b4ef41..7eae9880 100644
--- a/node/Packet.hpp
+++ b/node/Packet.hpp
@@ -45,8 +45,13 @@
/**
* Protocol version
+ *
+ * 1 - 0.2.0 ... 0.2.5
+ * 2 - 0.3.0 ...
+ * * Added signature and originating peer to multicast frame
+ * * Double size of multicast frame bloom filter
*/
-#define ZT_PROTO_VERSION 1
+#define ZT_PROTO_VERSION 2
/**
* Maximum hop count allowed by packet structure (3 bits, 0-7)
@@ -123,8 +128,8 @@
#define ZT_PROTO_MIN_FRAGMENT_LENGTH ZT_PACKET_FRAGMENT_IDX_PAYLOAD
// Size of bloom filter used in multicast propagation
-#define ZT_PROTO_VERB_MULTICAST_FRAME_BLOOM_FILTER_SIZE 32
-#define ZT_PROTO_VERB_MULTICAST_FRAME_BLOOM_FILTER_SIZE_BITS 256
+#define ZT_PROTO_VERB_MULTICAST_FRAME_BLOOM_FILTER_SIZE_BITS 512
+#define ZT_PROTO_VERB_MULTICAST_FRAME_BLOOM_FILTER_SIZE_BYTES 64
// Field incides for parsing verbs
#define ZT_PROTO_VERB_HELLO_IDX_PROTOCOL_VERSION (ZT_PACKET_IDX_PAYLOAD)
@@ -148,15 +153,18 @@
#define ZT_PROTO_VERB_FRAME_IDX_NETWORK_ID (ZT_PACKET_IDX_PAYLOAD)
#define ZT_PROTO_VERB_FRAME_IDX_ETHERTYPE (ZT_PROTO_VERB_FRAME_IDX_NETWORK_ID + 8)
#define ZT_PROTO_VERB_FRAME_IDX_PAYLOAD (ZT_PROTO_VERB_FRAME_IDX_ETHERTYPE + 2)
-#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_NETWORK_ID (ZT_PACKET_IDX_PAYLOAD)
-#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_MULTICAST_MAC (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_NETWORK_ID + 8)
-#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ADI (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_MULTICAST_MAC + 6)
-#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_BLOOM (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ADI + 4)
-#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_HOPS (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_BLOOM + ZT_PROTO_VERB_MULTICAST_FRAME_BLOOM_FILTER_SIZE)
-#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_LOAD_FACTOR (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_HOPS + 1)
-#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_FROM_MAC (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_LOAD_FACTOR + 2)
-#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ETHERTYPE (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_FROM_MAC + 6)
-#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PAYLOAD (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ETHERTYPE + 2)
+#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_FLAGS (ZT_PACKET_IDX_PAYLOAD)
+#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_NETWORK_ID (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_FLAGS + 1)
+#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_SUBMITTER_ADDRESS (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_NETWORK_ID + 8)
+#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_SOURCE_MAC (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_SUBMITTER_ADDRESS + 5)
+#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_DESTINATION_MAC (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_SOURCE_MAC + 6)
+#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ADI (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_DESTINATION_MAC + 6)
+#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_BLOOM_FILTER (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ADI + 4)
+#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_HOP_COUNT (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_BLOOM_FILTER + 64)
+#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ETHERTYPE (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_HOP_COUNT + 1)
+#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PAYLOAD_LENGTH (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ETHERTYPE + 2)
+#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_SIGNATURE_LENGTH (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PAYLOAD_LENGTH + 2)
+#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PAYLOAD (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_SIGNATURE_LENGTH + 2)
// Field indices for parsing OK and ERROR payloads of replies
#define ZT_PROTO_VERB_HELLO__OK__IDX_TIMESTAMP (ZT_PROTO_VERB_OK_IDX_PAYLOAD)
@@ -415,20 +423,8 @@ public:
*/
VERB_FRAME = 6,
- /* A multicast frame:
- * <[8] 64-bit network ID>
- * <[6] destination multicast Ethernet address>
- * <[4] multicast additional distinguishing information (ADI)>
- * <[32] multicast propagation bloom filter>
- * <[1] 8-bit strict propagation hop count>
- * <[2] reserved, must be 0>
- * <[6] source Ethernet address>
- * <[2] 16-bit ethertype>
- * <[...] ethernet payload>
- *
- * No OK or ERROR is generated.
- */
- VERB_MULTICAST_FRAME = 7,
+ /* 7 - old VERB_MULTICAST_FRAME, might be reused once all old 0.2
+ * clients are off the net. */
/* Announce interest in multicast group(s):
* <[8] 64-bit network ID>
@@ -438,7 +434,36 @@ public:
*
* OK is generated on successful receipt.
*/
- VERB_MULTICAST_LIKE = 8
+ VERB_MULTICAST_LIKE = 8,
+
+ /* A multicast frame:
+ * <[1] flags, currently unused and must be 0>
+ * <[8] 64-bit network ID>
+ * <[5] ZeroTier address of original submitter of this multicast>
+ * <[6] source MAC address>
+ * <[6] destination multicast Ethernet address>
+ * <[4] multicast additional distinguishing information (ADI)>
+ * <[64] multicast propagation bloom filter>
+ * <[1] 8-bit propagation hop count>
+ * <[2] 16-bit ethertype>
+ * <[2] 16-bit length of payload>
+ * <[2] 16-bit length of signature>
+ * <[...] ethernet payload>
+ * <[...] ECDSA signature>
+ *
+ * The signature is made using the key of the original submitter, and
+ * can be used to authenticate the submitter for security and rate
+ * control purposes. Fields in the signature are: network ID, source
+ * MAC, destination MAC, multicast ADI, ethertype, and payload. All
+ * integers are hashed in big-endian byte order. A zero byte is added
+ * to the hash between each field.
+ *
+ * In the future flags could indicate additional fields appended to the
+ * end or a different signature algorithm.
+ *
+ * No OK or ERROR is generated.
+ */
+ VERB_MULTICAST_FRAME = 9
};
/**
diff --git a/node/Switch.cpp b/node/Switch.cpp
index b1a55756..b839df05 100644
--- a/node/Switch.cpp
+++ b/node/Switch.cpp
@@ -219,8 +219,6 @@ Switch_onRemotePacket_complete_packet_handler:
qe->second.localPort = localPort;
qe->second.fromAddr = fromAddr;
}
- if (r == PACKET_SERVICE_ATTEMPT_PEER_UNKNOWN)
- _requestWhois(source);
}
}
} catch (std::exception &ex) {
@@ -569,17 +567,30 @@ void Switch::_propagateMulticast(const SharedPtr<Network> &network,const Address
SharedPtr<Peer> propPeers[ZT_MULTICAST_PROPAGATION_BREADTH];
unsigned int np = _multicaster.pickNextPropagationPeers(*(_r->topology),network->id(),mg,upstream,newBloom,ZT_MULTICAST_PROPAGATION_BREADTH,propPeers,Utils::now());
+ if (!np)
+ return;
+
+ std::string signature(Multicaster::signMulticastPacket(_r->identity,from,mg,etherType,data,len));
+ if (!signature.length()) {
+ TRACE("failure signing multicast message!");
+ return;
+ }
+
for(unsigned int i=0;i<np;++i) {
Packet outp(propPeers[i]->address(),_r->identity.address(),Packet::VERB_MULTICAST_FRAME);
+ outp.append((uint8_t)0);
outp.append((uint64_t)network->id());
+ outp.append(_r->identity.address().data(),ZT_ADDRESS_LENGTH);
+ outp.append(from.data,6);
outp.append(mg.mac().data,6);
outp.append((uint32_t)mg.adi());
outp.append(newBloom.data(),ZT_PROTO_VERB_MULTICAST_FRAME_BLOOM_FILTER_SIZE);
outp.append((uint8_t)mcHops);
- outp.append((unsigned char)0,2); // reserved, 0
- outp.append(from.data,6);
outp.append((uint16_t)etherType);
+ outp.append((uint16_t)len);
+ outp.append((uint16_t)signature.length());
outp.append(data,len);
+ outp.append(signature.data(),signature.length());
outp.compress();
send(outp,true);
}
@@ -747,45 +758,6 @@ Switch::PacketServiceAttemptResult Switch::_tryHandleRemotePacket(Demarc::Port l
TRACE("dropped FRAME from %s: unexpected exception: (unknown)",source.toString().c_str());
}
break;
- case Packet::VERB_MULTICAST_FRAME:
- try {
- SharedPtr<Network> network(_r->nc->network(packet.at<uint64_t>(ZT_PROTO_VERB_MULTICAST_FRAME_IDX_NETWORK_ID)));
- if (network) {
- if (network->isAllowed(source)) {
- if (packet.size() > ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PAYLOAD) {
- MulticastGroup mg(MAC(packet.field(ZT_PROTO_VERB_MULTICAST_FRAME_IDX_MULTICAST_MAC,6)),packet.at<uint32_t>(ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ADI));
- unsigned int hops = packet[ZT_PROTO_VERB_MULTICAST_FRAME_IDX_HOPS];
- MAC fromMac(packet.field(ZT_PROTO_VERB_MULTICAST_FRAME_IDX_FROM_MAC,6));
- unsigned int etherType = packet.at<uint16_t>(ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ETHERTYPE);
- unsigned int payloadLen = packet.size() - ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PAYLOAD;
- unsigned char *payload = packet.field(ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PAYLOAD,payloadLen);
-
- if (fromMac == network->tap().mac()) {
- TRACE("dropped boomerang MULTICAST_FRAME from %s",source.toString().c_str());
- } if (network->isAllowed(fromMac)) {
- if (_multicaster.checkAndUpdateMulticastHistory(fromMac,mg,payload,payloadLen,network->id(),now)) {
- // TODO: check if allowed etherType
- network->tap().put(fromMac,mg.mac(),etherType,payload,payloadLen);
- } else {
- TRACE("duplicate MULTICAST_FRAME from %s: %s -> %s (adi: %.8lx), %u bytes, net: %llu",source.toString().c_str(),fromMac.toString().c_str(),mg.mac().toString().c_str(),(unsigned long)mg.adi(),packet.size() - ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PAYLOAD,network->id());
- }
- _propagateMulticast(network,source,packet.field(ZT_PROTO_VERB_MULTICAST_FRAME_IDX_BLOOM,ZT_PROTO_VERB_MULTICAST_FRAME_BLOOM_FILTER_SIZE),mg,hops+1,fromMac,etherType,payload,payloadLen);
- } else {
- TRACE("dropped MULTICAST_FRAME from %s: ultimate sender %s not a member of closed network %llu",source.toString().c_str(),fromMac.toString().c_str(),network->id());
- }
- }
- } else {
- TRACE("dropped MULTICAST_FRAME from %s: not a member of closed network %llu",source.toString().c_str(),network->id());
- }
- } else {
- TRACE("dropped MULTICAST_FRAME from %s: network %llu unknown",source.toString().c_str(),packet.at<uint64_t>(ZT_PROTO_VERB_MULTICAST_FRAME_IDX_NETWORK_ID));
- }
- } catch (std::exception &ex) {
- TRACE("dropped MULTICAST_FRAME from %s: unexpected exception: %s",source.toString().c_str(),ex.what());
- } catch ( ... ) {
- TRACE("dropped MULTICAST_FRAME from %s: unexpected exception: (unknown)",source.toString().c_str());
- }
- break;
case Packet::VERB_MULTICAST_LIKE:
try {
unsigned int ptr = ZT_PACKET_IDX_PAYLOAD;
@@ -821,6 +793,62 @@ Switch::PacketServiceAttemptResult Switch::_tryHandleRemotePacket(Demarc::Port l
TRACE("dropped MULTICAST_LIKE from %s: unexpected exception: (unknown)",source.toString().c_str());
}
break;
+ case Packet::VERB_MULTICAST_FRAME:
+ try {
+ SharedPtr<Network> network(_r->nc->network(packet.at<uint64_t>(ZT_PROTO_VERB_MULTICAST_FRAME_IDX_NETWORK_ID)));
+ if (network) {
+ if (network->isAllowed(source)) {
+ if (packet.size() > ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PAYLOAD) {
+ Address originalSubmitterAddress(packet.field(ZT_PROTO_VERB_MULTICAST_FRAME_IDX_SUBMITTER_ADDRESS,ZT_ADDRESS_LENGTH));
+ if (originalSubmitterAddress == _r->identity.address()) {
+ TRACE("dropped boomerang MULTICAST_FRAME received from %s",source.toString().c_str());
+ } else {
+ SharedPtr<Peer> originalSubmitter(_r->topology->getPeer(originalSubmitterAddress));
+ if (!originalSubmitter) {
+ // If we don't know the original submitter, try to look them up
+ // and abort.
+ // TODO: need to rearchitect how we wait for and handle whois
+ // responses so they trigger a re-eval of this packet instantly.
+ _requestWhois(originalSubmitterAddress);
+ return PACKET_SERVICE_ATTEMPT_PEER_UNKNOWN;
+ } else {
+ MAC fromMac(packet.field(ZT_PROTO_VERB_MULTICAST_FRAME_IDX_SOURCE_MAC,6));
+ MulticastGroup mg(MAC(packet.field(ZT_PROTO_VERB_MULTICAST_FRAME_IDX_DESTINATION_MAC,6)),packet.at<uint32_t>(ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ADI));
+ unsigned int hops = packet[ZT_PROTO_VERB_MULTICAST_FRAME_IDX_HOP_COUNT];
+ unsigned int etherType = packet.at<uint16_t>(ZT_PROTO_VERB_MULTICAST_FRAME_IDX_ETHERTYPE);
+ unsigned int datalen = packet.at<uint16_t>(ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PAYLOAD_LENGTH);
+ unsigned int signaturelen = packet.at<uint16_t>(ZT_PROTO_VERB_MULTICAST_FRAME_IDX_SIGNATURE_LENGTH);
+ unsigned char *dataAndSignature = packet.field(ZT_PROTO_VERB_MULTICAST_FRAME_IDX_PAYLOAD,datalen + signaturelen);
+
+ if (Multicaster::verifyMulticastPacket(originalSubmitter->identity(),fromMac,mg,etherType,data,datalen,dataAndSignature + datalen,signaturelen)) {
+ if (network->isAllowed(originalSubmitterAddress)) {
+ if (_multicaster.checkAndUpdateMulticastHistory(fromMac,mg,payload,payloadLen,network->id(),now)) {
+ // TODO: check if allowed etherType
+ network->tap().put(fromMac,mg.mac(),etherType,payload,payloadLen);
+ } else {
+ }
+ _propagateMulticast(network,source,packet.field(ZT_PROTO_VERB_MULTICAST_FRAME_IDX_BLOOM,ZT_PROTO_VERB_MULTICAST_FRAME_BLOOM_FILTER_SIZE),mg,hops+1,fromMac,etherType,payload,payloadLen);
+ } else {
+ }
+ } else {
+ }
+ }
+ }
+ } else {
+ }
+ } else {
+ TRACE("dropped MULTICAST_FRAME from %s: not a member of closed network %llu",source.toString().c_str(),network->id());
+ }
+ } else {
+ TRACE("dropped MULTICAST_FRAME from %s: network %llu unknown or we are not a member",source.toString().c_str(),packet.at<uint64_t>(ZT_PROTO_VERB_MULTICAST_FRAME_IDX_NETWORK_ID));
+ }
+ } catch (std::exception &ex) {
+ TRACE("dropped MULTICAST_FRAME from %s: unexpected exception: %s",source.toString().c_str(),ex.what());
+ } catch ( ... ) {
+ TRACE("dropped MULTICAST_FRAME from %s: unexpected exception: (unknown)",source.toString().c_str());
+ }
+ break;
+ break;
default:
TRACE("ignored unrecognized verb %.2x from %s",(unsigned int)packet.verb(),source.toString().c_str());
break;
@@ -828,7 +856,10 @@ Switch::PacketServiceAttemptResult Switch::_tryHandleRemotePacket(Demarc::Port l
// Update peer timestamps and learn new links
peer->onReceive(_r,localPort,fromAddr,latency,packet.hops(),packet.verb(),now);
- } else return PACKET_SERVICE_ATTEMPT_PEER_UNKNOWN;
+ } else {
+ _requestWhois(source);
+ return PACKET_SERVICE_ATTEMPT_PEER_UNKNOWN;
+ }
return PACKET_SERVICE_ATTEMPT_OK;
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-03-02 20:59:52 +0000