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31 lines
792 B
Go
31 lines
792 B
Go
package p2p
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import (
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"fmt"
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libp2p "github.com/libp2p/go-libp2p"
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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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// 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(port int) []libp2p.Option {
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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))
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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.EnableRelay(), // Allows dialing to peers via relay.
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}
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}
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