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New flag Firewall in the Features field to inform uncontacted peers that a Traverse message might be required to establish a connection. Close #61

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This flag can be activated via the config setting LocalFirewall.
The Features field exists in Announcement/Response messages and was now added to peer records.
This commit is contained in:
Kleissner
2021-11-20 04:28:03 +01:00
parent 446c62bcd9
commit f7e8f1821b
11 changed files with 54 additions and 20 deletions
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5
Peer ID.go
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@@ -96,7 +96,7 @@ type PeerInfo struct {
messageSequence uint32 // Sequence number. Increased with every message.
IsRootPeer bool // Whether the peer is a trusted root peer.
UserAgent string // User Agent reported by remote peer. Empty if no Announcement/Response message was yet received.
Features uint8 // Feature bit array. 0 = IPv4_LISTEN, 1 = IPv6_LISTEN
Features uint8 // Feature bit array. 0 = IPv4_LISTEN, 1 = IPv6_LISTEN, 1 = FIREWALL
isVirtual bool // Whether it is a virtual peer for establishing a connection.
targetAddresses []*peerAddress // Virtual peer: Addresses to send any replies.
traversePeer *PeerInfo // Virtual peer: Same field as in connection.
@@ -222,7 +222,7 @@ func records2Nodes(records []protocol.PeerRecord, peerSource *PeerInfo) (nodes [
continue
}
peer = &PeerInfo{PublicKey: record.PublicKey, connectionActive: nil, connectionLatest: nil, NodeID: protocol.PublicKey2NodeID(record.PublicKey), messageSequence: rand.Uint32(), isVirtual: true, targetAddresses: addresses, traversePeer: peerSource}
peer = &PeerInfo{PublicKey: record.PublicKey, connectionActive: nil, connectionLatest: nil, NodeID: protocol.PublicKey2NodeID(record.PublicKey), messageSequence: rand.Uint32(), isVirtual: true, targetAddresses: addresses, traversePeer: peerSource, Features: record.Features}
}
nodes = append(nodes, &dht.Node{ID: peer.NodeID, LastSeen: record.LastContactT, Info: peer})
@@ -239,6 +239,7 @@ func selfPeerRecord() (result protocol.PeerRecord) {
//IP: network.address.IP,
//Port: uint16(network.address.Port),
LastContact: 0,
Features: FeatureSupport(),
}
}