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44 lines
1.3 KiB
Go
44 lines
1.3 KiB
Go
package p2p
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import (
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"github.com/kaspanet/kaspad/config"
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"github.com/kaspanet/kaspad/peer"
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"github.com/kaspanet/kaspad/wire"
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)
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// OnGetAddr is invoked when a peer receives a getaddr bitcoin message
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// and is used to provide the peer with known addresses from the address
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// manager.
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func (sp *Peer) OnGetAddr(_ *peer.Peer, msg *wire.MsgGetAddr) {
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// Don't return any addresses when running on the simulation test
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// network. This helps prevent the network from becoming another
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// public test network since it will not be able to learn about other
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// peers that have not specifically been provided.
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if config.ActiveConfig().SimNet {
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return
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}
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// Do not accept getaddr requests from outbound peers. This reduces
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// fingerprinting attacks.
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if !sp.Inbound() {
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peerLog.Debugf("Ignoring getaddr request from outbound peer ",
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"%s", sp)
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return
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}
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// Only allow one getaddr request per connection to discourage
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// address stamping of inv announcements.
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if sp.sentAddrs {
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peerLog.Debugf("Ignoring repeated getaddr request from peer ",
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"%s", sp)
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return
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}
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sp.sentAddrs = true
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// Get the current known addresses from the address manager.
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addrCache := sp.server.addrManager.AddressCache(msg.IncludeAllSubnetworks, msg.SubnetworkID)
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// Push the addresses.
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sp.pushAddrMsg(addrCache, sp.SubnetworkID())
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}
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