74b12e35bf
* network/retrieve: initial commit * network: import dependencies from stream package branch * network/retrieve: address pr comments * network/retrieve: fix pr comments * network/retrieve: create logger for peer * network: address pr comments * network/retrieve: lint * network/retrieve: prevent forever loop * network/retrieve: address pr comments * network/retrieve: fix linter * network/retrieve: pr comments * network/retrieval: pr comments
59 lines
1.9 KiB
Go
59 lines
1.9 KiB
Go
// Copyright 2019 The Swarm Authors
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// This file is part of the Swarm library.
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//
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// The Swarm library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The Swarm library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the Swarm library. If not, see <http://www.gnu.org/licenses/>.
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package testutil
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import (
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"net"
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"testing"
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"github.com/ethereum/go-ethereum/p2p/enode"
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"github.com/ethereum/go-ethereum/p2p/enr"
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"github.com/ethereum/go-ethereum/p2p/simulations/adapters"
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"github.com/ethersphere/swarm/chunk"
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"github.com/ethersphere/swarm/network"
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)
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// NodeConfigAtPo brute forces a node config to create a node that has an overlay address at the provided po in relation to the given baseaddr
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func NodeConfigAtPo(t *testing.T, baseaddr []byte, po int) *adapters.NodeConfig {
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foundPo := -1
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var conf *adapters.NodeConfig
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for foundPo != po {
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conf = adapters.RandomNodeConfig()
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ip := net.IPv4(127, 0, 0, 1)
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enrIP := enr.IP(ip)
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conf.Record.Set(&enrIP)
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enrTCPPort := enr.TCP(conf.Port)
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conf.Record.Set(&enrTCPPort)
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enrUDPPort := enr.UDP(0)
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conf.Record.Set(&enrUDPPort)
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err := enode.SignV4(&conf.Record, conf.PrivateKey)
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if err != nil {
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t.Fatalf("unable to generate ENR: %v", err)
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}
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nod, err := enode.New(enode.V4ID{}, &conf.Record)
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if err != nil {
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t.Fatalf("unable to create enode: %v", err)
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}
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n := network.NewAddr(nod)
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foundPo = chunk.Proximity(baseaddr, n.Over())
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}
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return conf
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}
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