mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
synced 2025-01-03 16:37:39 +00:00
0559d01261
* Preliminary support for relay nodes * lint * Add comment, remove TODO * work on relay address factory * dial relay node, if available * forgot new files * fix service registry breakage * added logging * Added a peer count with prometheus * always start mDNS * fix lint
44 lines
1.1 KiB
Go
44 lines
1.1 KiB
Go
package p2p
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import (
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"fmt"
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"math/rand"
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"time"
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libp2p "github.com/libp2p/go-libp2p"
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crypto "github.com/libp2p/go-libp2p-crypto"
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ma "github.com/multiformats/go-multiaddr"
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"github.com/prysmaticlabs/prysm/shared/iputils"
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)
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var port int32 = 9000
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var portRange int32 = 100
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// buildOptions for the libp2p host.
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// TODO(287): Expand on these options and provide the option configuration via flags.
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// Currently, this is a random port and a (seemingly) consistent private key
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// identity.
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func buildOptions() []libp2p.Option {
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rand.Seed(int64(time.Now().Nanosecond()))
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priv, _, err := crypto.GenerateKeyPair(crypto.Secp256k1, 512)
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if err != nil {
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log.Errorf("Failed to generate crypto key pair: %v", err)
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}
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ip, err := iputils.ExternalIPv4()
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if err != nil {
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log.Errorf("Could not get IPv4 address: %v", err)
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}
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listen, err := ma.NewMultiaddr(fmt.Sprintf("/ip4/%s/tcp/%d", ip, port+(rand.Int31n(portRange))))
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if err != nil {
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log.Errorf("Failed to p2p listen: %v", err)
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}
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return []libp2p.Option{
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libp2p.ListenAddrs(listen),
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libp2p.Identity(priv),
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libp2p.EnableRelay(), // Allows dialing to peers via relay.
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}
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}
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