mirror of https://github.com/ethereum/go-ethereum
p2p/discv5: add deprecation warning and remove unused code (#20367)
* p2p/discv5: add deprecation warning and remove unused code * p2p/discv5: remove unused variablespull/20375/head
Felix Lange
5 years ago
committed by
Péter Szilágyi
parent
0abcf03fde
commit
fdff182f11
@ -0,0 +1,4 @@ |
||||
This package is an early prototype of Discovery v5. Do not use this code. |
||||
|
||||
See https://github.com/ethereum/devp2p/blob/master/discv5/discv5.md for the |
||||
current Discovery v5 specification. |
||||
@ -1,126 +0,0 @@ |
||||
// Copyright 2016 The go-ethereum Authors
|
||||
// This file is part of the go-ethereum library.
|
||||
//
|
||||
// The go-ethereum library is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU Lesser General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// The go-ethereum library is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU Lesser General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU Lesser General Public License
|
||||
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
// Contains the NTP time drift detection via the SNTP protocol:
|
||||
// https://tools.ietf.org/html/rfc4330
|
||||
|
||||
package discv5 |
||||
|
||||
import ( |
||||
"fmt" |
||||
"net" |
||||
"sort" |
||||
"strings" |
||||
"time" |
||||
|
||||
"github.com/ethereum/go-ethereum/log" |
||||
) |
||||
|
||||
const ( |
||||
ntpPool = "pool.ntp.org" // ntpPool is the NTP server to query for the current time
|
||||
ntpChecks = 3 // Number of measurements to do against the NTP server
|
||||
) |
||||
|
||||
// durationSlice attaches the methods of sort.Interface to []time.Duration,
|
||||
// sorting in increasing order.
|
||||
type durationSlice []time.Duration |
||||
|
||||
func (s durationSlice) Len() int { return len(s) } |
||||
func (s durationSlice) Less(i, j int) bool { return s[i] < s[j] } |
||||
func (s durationSlice) Swap(i, j int) { s[i], s[j] = s[j], s[i] } |
||||
|
||||
// checkClockDrift queries an NTP server for clock drifts and warns the user if
|
||||
// one large enough is detected.
|
||||
func checkClockDrift() { |
||||
drift, err := sntpDrift(ntpChecks) |
||||
if err != nil { |
||||
return |
||||
} |
||||
if drift < -driftThreshold || drift > driftThreshold { |
||||
warning := fmt.Sprintf("System clock seems off by %v, which can prevent network connectivity", drift) |
||||
howtofix := fmt.Sprintf("Please enable network time synchronisation in system settings") |
||||
separator := strings.Repeat("-", len(warning)) |
||||
|
||||
log.Warn(separator) |
||||
log.Warn(warning) |
||||
log.Warn(howtofix) |
||||
log.Warn(separator) |
||||
} else { |
||||
log.Debug(fmt.Sprintf("Sanity NTP check reported %v drift, all ok", drift)) |
||||
} |
||||
} |
||||
|
||||
// sntpDrift does a naive time resolution against an NTP server and returns the
|
||||
// measured drift. This method uses the simple version of NTP. It's not precise
|
||||
// but should be fine for these purposes.
|
||||
//
|
||||
// Note, it executes two extra measurements compared to the number of requested
|
||||
// ones to be able to discard the two extremes as outliers.
|
||||
func sntpDrift(measurements int) (time.Duration, error) { |
||||
// Resolve the address of the NTP server
|
||||
addr, err := net.ResolveUDPAddr("udp", ntpPool+":123") |
||||
if err != nil { |
||||
return 0, err |
||||
} |
||||
// Construct the time request (empty package with only 2 fields set):
|
||||
// Bits 3-5: Protocol version, 3
|
||||
// Bits 6-8: Mode of operation, client, 3
|
||||
request := make([]byte, 48) |
||||
request[0] = 3<<3 | 3 |
||||
|
||||
// Execute each of the measurements
|
||||
drifts := []time.Duration{} |
||||
for i := 0; i < measurements+2; i++ { |
||||
// Dial the NTP server and send the time retrieval request
|
||||
conn, err := net.DialUDP("udp", nil, addr) |
||||
if err != nil { |
||||
return 0, err |
||||
} |
||||
defer conn.Close() |
||||
|
||||
sent := time.Now() |
||||
if _, err = conn.Write(request); err != nil { |
||||
return 0, err |
||||
} |
||||
// Retrieve the reply and calculate the elapsed time
|
||||
conn.SetDeadline(time.Now().Add(5 * time.Second)) |
||||
|
||||
reply := make([]byte, 48) |
||||
if _, err = conn.Read(reply); err != nil { |
||||
return 0, err |
||||
} |
||||
elapsed := time.Since(sent) |
||||
|
||||
// Reconstruct the time from the reply data
|
||||
sec := uint64(reply[43]) | uint64(reply[42])<<8 | uint64(reply[41])<<16 | uint64(reply[40])<<24 |
||||
frac := uint64(reply[47]) | uint64(reply[46])<<8 | uint64(reply[45])<<16 | uint64(reply[44])<<24 |
||||
|
||||
nanosec := sec*1e9 + (frac*1e9)>>32 |
||||
|
||||
t := time.Date(1900, 1, 1, 0, 0, 0, 0, time.UTC).Add(time.Duration(nanosec)).Local() |
||||
|
||||
// Calculate the drift based on an assumed answer time of RRT/2
|
||||
drifts = append(drifts, sent.Sub(t)+elapsed/2) |
||||
} |
||||
// Calculate average drif (drop two extremities to avoid outliers)
|
||||
sort.Sort(durationSlice(drifts)) |
||||
|
||||
drift := time.Duration(0) |
||||
for i := 1; i < len(drifts)-1; i++ { |
||||
drift += drifts[i] |
||||
} |
||||
return drift / time.Duration(measurements), nil |
||||
} |
||||
@ -1,450 +0,0 @@ |
||||
// Copyright 2016 The go-ethereum Authors
|
||||
// This file is part of the go-ethereum library.
|
||||
//
|
||||
// The go-ethereum library is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU Lesser General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// The go-ethereum library is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU Lesser General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU Lesser General Public License
|
||||
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
package discv5 |
||||
|
||||
import ( |
||||
"encoding/hex" |
||||
"errors" |
||||
"io" |
||||
"net" |
||||
"reflect" |
||||
"sync" |
||||
"testing" |
||||
|
||||
"github.com/davecgh/go-spew/spew" |
||||
"github.com/ethereum/go-ethereum/common" |
||||
"github.com/ethereum/go-ethereum/crypto" |
||||
"github.com/ethereum/go-ethereum/rlp" |
||||
) |
||||
|
||||
func init() { |
||||
spew.Config.DisableMethods = true |
||||
} |
||||
|
||||
// shared test variables
|
||||
var ( |
||||
testLocal = rpcEndpoint{IP: net.ParseIP("3.3.3.3").To4(), UDP: 5, TCP: 6} |
||||
) |
||||
|
||||
// type udpTest struct {
|
||||
// t *testing.T
|
||||
// pipe *dgramPipe
|
||||
// table *Table
|
||||
// udp *udp
|
||||
// sent [][]byte
|
||||
// localkey, remotekey *ecdsa.PrivateKey
|
||||
// remoteaddr *net.UDPAddr
|
||||
// }
|
||||
//
|
||||
// func newUDPTest(t *testing.T) *udpTest {
|
||||
// test := &udpTest{
|
||||
// t: t,
|
||||
// pipe: newpipe(),
|
||||
// localkey: newkey(),
|
||||
// remotekey: newkey(),
|
||||
// remoteaddr: &net.UDPAddr{IP: net.IP{1, 2, 3, 4}, Port: 30303},
|
||||
// }
|
||||
// test.table, test.udp, _ = newUDP(test.localkey, test.pipe, nil, "")
|
||||
// return test
|
||||
// }
|
||||
//
|
||||
// // handles a packet as if it had been sent to the transport.
|
||||
// func (test *udpTest) packetIn(wantError error, ptype byte, data packet) error {
|
||||
// enc, err := encodePacket(test.remotekey, ptype, data)
|
||||
// if err != nil {
|
||||
// return test.errorf("packet (%d) encode error: %v", ptype, err)
|
||||
// }
|
||||
// test.sent = append(test.sent, enc)
|
||||
// if err = test.udp.handlePacket(test.remoteaddr, enc); err != wantError {
|
||||
// return test.errorf("error mismatch: got %q, want %q", err, wantError)
|
||||
// }
|
||||
// return nil
|
||||
// }
|
||||
//
|
||||
// // waits for a packet to be sent by the transport.
|
||||
// // validate should have type func(*udpTest, X) error, where X is a packet type.
|
||||
// func (test *udpTest) waitPacketOut(validate interface{}) error {
|
||||
// dgram := test.pipe.waitPacketOut()
|
||||
// p, _, _, err := decodePacket(dgram)
|
||||
// if err != nil {
|
||||
// return test.errorf("sent packet decode error: %v", err)
|
||||
// }
|
||||
// fn := reflect.ValueOf(validate)
|
||||
// exptype := fn.Type().In(0)
|
||||
// if reflect.TypeOf(p) != exptype {
|
||||
// return test.errorf("sent packet type mismatch, got: %v, want: %v", reflect.TypeOf(p), exptype)
|
||||
// }
|
||||
// fn.Call([]reflect.Value{reflect.ValueOf(p)})
|
||||
// return nil
|
||||
// }
|
||||
//
|
||||
// func (test *udpTest) errorf(format string, args ...interface{}) error {
|
||||
// _, file, line, ok := runtime.Caller(2) // errorf + waitPacketOut
|
||||
// if ok {
|
||||
// file = filepath.Base(file)
|
||||
// } else {
|
||||
// file = "???"
|
||||
// line = 1
|
||||
// }
|
||||
// err := fmt.Errorf(format, args...)
|
||||
// fmt.Printf("\t%s:%d: %v\n", file, line, err)
|
||||
// test.t.Fail()
|
||||
// return err
|
||||
// }
|
||||
//
|
||||
// func TestUDP_packetErrors(t *testing.T) {
|
||||
// test := newUDPTest(t)
|
||||
// defer test.table.Close()
|
||||
//
|
||||
// test.packetIn(errExpired, pingPacket, &ping{From: testRemote, To: testLocalAnnounced, Version: Version})
|
||||
// test.packetIn(errUnsolicitedReply, pongPacket, &pong{ReplyTok: []byte{}, Expiration: futureExp})
|
||||
// test.packetIn(errUnknownNode, findnodePacket, &findnode{Expiration: futureExp})
|
||||
// test.packetIn(errUnsolicitedReply, neighborsPacket, &neighbors{Expiration: futureExp})
|
||||
// }
|
||||
//
|
||||
// func TestUDP_findnode(t *testing.T) {
|
||||
// test := newUDPTest(t)
|
||||
// defer test.table.Close()
|
||||
//
|
||||
// // put a few nodes into the table. their exact
|
||||
// // distribution shouldn't matter much, although we need to
|
||||
// // take care not to overflow any bucket.
|
||||
// targetHash := crypto.Keccak256Hash(testTarget[:])
|
||||
// nodes := &nodesByDistance{target: targetHash}
|
||||
// for i := 0; i < bucketSize; i++ {
|
||||
// nodes.push(nodeAtDistance(test.table.self.sha, i+2), bucketSize)
|
||||
// }
|
||||
// test.table.stuff(nodes.entries)
|
||||
//
|
||||
// // ensure there's a bond with the test node,
|
||||
// // findnode won't be accepted otherwise.
|
||||
// test.table.db.updateNode(NewNode(
|
||||
// PubkeyID(&test.remotekey.PublicKey),
|
||||
// test.remoteaddr.IP,
|
||||
// uint16(test.remoteaddr.Port),
|
||||
// 99,
|
||||
// ))
|
||||
// // check that closest neighbors are returned.
|
||||
// test.packetIn(nil, findnodePacket, &findnode{Target: testTarget, Expiration: futureExp})
|
||||
// expected := test.table.closest(targetHash, bucketSize)
|
||||
//
|
||||
// waitNeighbors := func(want []*Node) {
|
||||
// test.waitPacketOut(func(p *neighbors) {
|
||||
// if len(p.Nodes) != len(want) {
|
||||
// t.Errorf("wrong number of results: got %d, want %d", len(p.Nodes), bucketSize)
|
||||
// }
|
||||
// for i := range p.Nodes {
|
||||
// if p.Nodes[i].ID != want[i].ID {
|
||||
// t.Errorf("result mismatch at %d:\n got: %v\n want: %v", i, p.Nodes[i], expected.entries[i])
|
||||
// }
|
||||
// }
|
||||
// })
|
||||
// }
|
||||
// waitNeighbors(expected.entries[:maxNeighbors])
|
||||
// waitNeighbors(expected.entries[maxNeighbors:])
|
||||
// }
|
||||
//
|
||||
// func TestUDP_findnodeMultiReply(t *testing.T) {
|
||||
// test := newUDPTest(t)
|
||||
// defer test.table.Close()
|
||||
//
|
||||
// // queue a pending findnode request
|
||||
// resultc, errc := make(chan []*Node), make(chan error)
|
||||
// go func() {
|
||||
// rid := PubkeyID(&test.remotekey.PublicKey)
|
||||
// ns, err := test.udp.findnode(rid, test.remoteaddr, testTarget)
|
||||
// if err != nil && len(ns) == 0 {
|
||||
// errc <- err
|
||||
// } else {
|
||||
// resultc <- ns
|
||||
// }
|
||||
// }()
|
||||
//
|
||||
// // wait for the findnode to be sent.
|
||||
// // after it is sent, the transport is waiting for a reply
|
||||
// test.waitPacketOut(func(p *findnode) {
|
||||
// if p.Target != testTarget {
|
||||
// t.Errorf("wrong target: got %v, want %v", p.Target, testTarget)
|
||||
// }
|
||||
// })
|
||||
//
|
||||
// // send the reply as two packets.
|
||||
// list := []*Node{
|
||||
// MustParseNode("enode://ba85011c70bcc5c04d8607d3a0ed29aa6179c092cbdda10d5d32684fb33ed01bd94f588ca8f91ac48318087dcb02eaf36773a7a453f0eedd6742af668097b29c@10.0.1.16:30303?discport=30304"),
|
||||
// MustParseNode("enode://81fa361d25f157cd421c60dcc28d8dac5ef6a89476633339c5df30287474520caca09627da18543d9079b5b288698b542d56167aa5c09111e55acdbbdf2ef799@10.0.1.16:30303"),
|
||||
// MustParseNode("enode://9bffefd833d53fac8e652415f4973bee289e8b1a5c6c4cbe70abf817ce8a64cee11b823b66a987f51aaa9fba0d6a91b3e6bf0d5a5d1042de8e9eeea057b217f8@10.0.1.36:30301?discport=17"),
|
||||
// MustParseNode("enode://1b5b4aa662d7cb44a7221bfba67302590b643028197a7d5214790f3bac7aaa4a3241be9e83c09cf1f6c69d007c634faae3dc1b1221793e8446c0b3a09de65960@10.0.1.16:30303"),
|
||||
// }
|
||||
// rpclist := make([]rpcNode, len(list))
|
||||
// for i := range list {
|
||||
// rpclist[i] = nodeToRPC(list[i])
|
||||
// }
|
||||
// test.packetIn(nil, neighborsPacket, &neighbors{Expiration: futureExp, Nodes: rpclist[:2]})
|
||||
// test.packetIn(nil, neighborsPacket, &neighbors{Expiration: futureExp, Nodes: rpclist[2:]})
|
||||
//
|
||||
// // check that the sent neighbors are all returned by findnode
|
||||
// select {
|
||||
// case result := <-resultc:
|
||||
// if !reflect.DeepEqual(result, list) {
|
||||
// t.Errorf("neighbors mismatch:\n got: %v\n want: %v", result, list)
|
||||
// }
|
||||
// case err := <-errc:
|
||||
// t.Errorf("findnode error: %v", err)
|
||||
// case <-time.After(5 * time.Second):
|
||||
// t.Error("findnode did not return within 5 seconds")
|
||||
// }
|
||||
// }
|
||||
//
|
||||
// func TestUDP_successfulPing(t *testing.T) {
|
||||
// test := newUDPTest(t)
|
||||
// added := make(chan *Node, 1)
|
||||
// test.table.nodeAddedHook = func(n *Node) { added <- n }
|
||||
// defer test.table.Close()
|
||||
//
|
||||
// // The remote side sends a ping packet to initiate the exchange.
|
||||
// go test.packetIn(nil, pingPacket, &ping{From: testRemote, To: testLocalAnnounced, Version: Version, Expiration: futureExp})
|
||||
//
|
||||
// // the ping is replied to.
|
||||
// test.waitPacketOut(func(p *pong) {
|
||||
// pinghash := test.sent[0][:macSize]
|
||||
// if !bytes.Equal(p.ReplyTok, pinghash) {
|
||||
// t.Errorf("got pong.ReplyTok %x, want %x", p.ReplyTok, pinghash)
|
||||
// }
|
||||
// wantTo := rpcEndpoint{
|
||||
// // The mirrored UDP address is the UDP packet sender
|
||||
// IP: test.remoteaddr.IP, UDP: uint16(test.remoteaddr.Port),
|
||||
// // The mirrored TCP port is the one from the ping packet
|
||||
// TCP: testRemote.TCP,
|
||||
// }
|
||||
// if !reflect.DeepEqual(p.To, wantTo) {
|
||||
// t.Errorf("got pong.To %v, want %v", p.To, wantTo)
|
||||
// }
|
||||
// })
|
||||
//
|
||||
// // remote is unknown, the table pings back.
|
||||
// test.waitPacketOut(func(p *ping) error {
|
||||
// if !reflect.DeepEqual(p.From, test.udp.ourEndpoint) {
|
||||
// t.Errorf("got ping.From %v, want %v", p.From, test.udp.ourEndpoint)
|
||||
// }
|
||||
// wantTo := rpcEndpoint{
|
||||
// // The mirrored UDP address is the UDP packet sender.
|
||||
// IP: test.remoteaddr.IP, UDP: uint16(test.remoteaddr.Port),
|
||||
// TCP: 0,
|
||||
// }
|
||||
// if !reflect.DeepEqual(p.To, wantTo) {
|
||||
// t.Errorf("got ping.To %v, want %v", p.To, wantTo)
|
||||
// }
|
||||
// return nil
|
||||
// })
|
||||
// test.packetIn(nil, pongPacket, &pong{Expiration: futureExp})
|
||||
//
|
||||
// // the node should be added to the table shortly after getting the
|
||||
// // pong packet.
|
||||
// select {
|
||||
// case n := <-added:
|
||||
// rid := PubkeyID(&test.remotekey.PublicKey)
|
||||
// if n.ID != rid {
|
||||
// t.Errorf("node has wrong ID: got %v, want %v", n.ID, rid)
|
||||
// }
|
||||
// if !bytes.Equal(n.IP, test.remoteaddr.IP) {
|
||||
// t.Errorf("node has wrong IP: got %v, want: %v", n.IP, test.remoteaddr.IP)
|
||||
// }
|
||||
// if int(n.UDP) != test.remoteaddr.Port {
|
||||
// t.Errorf("node has wrong UDP port: got %v, want: %v", n.UDP, test.remoteaddr.Port)
|
||||
// }
|
||||
// if n.TCP != testRemote.TCP {
|
||||
// t.Errorf("node has wrong TCP port: got %v, want: %v", n.TCP, testRemote.TCP)
|
||||
// }
|
||||
// case <-time.After(2 * time.Second):
|
||||
// t.Errorf("node was not added within 2 seconds")
|
||||
// }
|
||||
// }
|
||||
|
||||
var testPackets = []struct { |
||||
input string |
||||
wantPacket interface{} |
||||
}{ |
||||
{ |
||||
input: "71dbda3a79554728d4f94411e42ee1f8b0d561c10e1e5f5893367948c6a7d70bb87b235fa28a77070271b6c164a2dce8c7e13a5739b53b5e96f2e5acb0e458a02902f5965d55ecbeb2ebb6cabb8b2b232896a36b737666c55265ad0a68412f250001ea04cb847f000001820cfa8215a8d790000000000000000000000000000000018208ae820d058443b9a355", |
||||
wantPacket: &ping{ |
||||
Version: 4, |
||||
From: rpcEndpoint{net.ParseIP("127.0.0.1").To4(), 3322, 5544}, |
||||
To: rpcEndpoint{net.ParseIP("::1"), 2222, 3333}, |
||||
Expiration: 1136239445, |
||||
Rest: []rlp.RawValue{}, |
||||
}, |
||||
}, |
||||
{ |
||||
input: "e9614ccfd9fc3e74360018522d30e1419a143407ffcce748de3e22116b7e8dc92ff74788c0b6663aaa3d67d641936511c8f8d6ad8698b820a7cf9e1be7155e9a241f556658c55428ec0563514365799a4be2be5a685a80971ddcfa80cb422cdd0101ec04cb847f000001820cfa8215a8d790000000000000000000000000000000018208ae820d058443b9a3550102", |
||||
wantPacket: &ping{ |
||||
Version: 4, |
||||
From: rpcEndpoint{net.ParseIP("127.0.0.1").To4(), 3322, 5544}, |
||||
To: rpcEndpoint{net.ParseIP("::1"), 2222, 3333}, |
||||
Expiration: 1136239445, |
||||
Rest: []rlp.RawValue{{0x01}, {0x02}}, |
||||
}, |
||||
}, |
||||
{ |
||||
input: "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", |
||||
wantPacket: &ping{ |
||||
Version: 555, |
||||
From: rpcEndpoint{net.ParseIP("2001:db8:3c4d:15::abcd:ef12"), 3322, 5544}, |
||||
To: rpcEndpoint{net.ParseIP("2001:db8:85a3:8d3:1319:8a2e:370:7348"), 2222, 33338}, |
||||
Expiration: 1136239445, |
||||
Rest: []rlp.RawValue{{0xC5, 0x01, 0x02, 0x03, 0x04, 0x05}}, |
||||
}, |
||||
}, |
||||
{ |
||||
input: "09b2428d83348d27cdf7064ad9024f526cebc19e4958f0fdad87c15eb598dd61d08423e0bf66b2069869e1724125f820d851c136684082774f870e614d95a2855d000f05d1648b2d5945470bc187c2d2216fbe870f43ed0909009882e176a46b0102f846d79020010db885a308d313198a2e037073488208ae82823aa0fbc914b16819237dcd8801d7e53f69e9719adecb3cc0e790c57e91ca4461c9548443b9a355c6010203c2040506a0c969a58f6f9095004c0177a6b47f451530cab38966a25cca5cb58f055542124e", |
||||
wantPacket: &pong{ |
||||
To: rpcEndpoint{net.ParseIP("2001:db8:85a3:8d3:1319:8a2e:370:7348"), 2222, 33338}, |
||||
ReplyTok: common.Hex2Bytes("fbc914b16819237dcd8801d7e53f69e9719adecb3cc0e790c57e91ca4461c954"), |
||||
Expiration: 1136239445, |
||||
Rest: []rlp.RawValue{{0xC6, 0x01, 0x02, 0x03, 0xC2, 0x04, 0x05}, {0x06}}, |
||||
}, |
||||
}, |
||||
{ |
||||
input: "c7c44041b9f7c7e41934417ebac9a8e1a4c6298f74553f2fcfdcae6ed6fe53163eb3d2b52e39fe91831b8a927bf4fc222c3902202027e5e9eb812195f95d20061ef5cd31d502e47ecb61183f74a504fe04c51e73df81f25c4d506b26db4517490103f84eb840ca634cae0d49acb401d8a4c6b6fe8c55b70d115bf400769cc1400f3258cd31387574077f301b421bc84df7266c44e9e6d569fc56be00812904767bf5ccd1fc7f8443b9a35582999983999999280dc62cc8255c73471e0a61da0c89acdc0e035e260add7fc0c04ad9ebf3919644c91cb247affc82b69bd2ca235c71eab8e49737c937a2c396", |
||||
wantPacket: &findnode{ |
||||
Target: MustHexID("ca634cae0d49acb401d8a4c6b6fe8c55b70d115bf400769cc1400f3258cd31387574077f301b421bc84df7266c44e9e6d569fc56be00812904767bf5ccd1fc7f"), |
||||
Expiration: 1136239445, |
||||
Rest: []rlp.RawValue{{0x82, 0x99, 0x99}, {0x83, 0x99, 0x99, 0x99}}, |
||||
}, |
||||
}, |
||||
{ |
||||
input: "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", |
||||
wantPacket: &neighbors{ |
||||
Nodes: []rpcNode{ |
||||
{ |
||||
ID: MustHexID("3155e1427f85f10a5c9a7755877748041af1bcd8d474ec065eb33df57a97babf54bfd2103575fa829115d224c523596b401065a97f74010610fce76382c0bf32"), |
||||
IP: net.ParseIP("99.33.22.55").To4(), |
||||
UDP: 4444, |
||||
TCP: 4445, |
||||
}, |
||||
{ |
||||
ID: MustHexID("312c55512422cf9b8a4097e9a6ad79402e87a15ae909a4bfefa22398f03d20951933beea1e4dfa6f968212385e829f04c2d314fc2d4e255e0d3bc08792b069db"), |
||||
IP: net.ParseIP("1.2.3.4").To4(), |
||||
UDP: 1, |
||||
TCP: 1, |
||||
}, |
||||
{ |
||||
ID: MustHexID("38643200b172dcfef857492156971f0e6aa2c538d8b74010f8e140811d53b98c765dd2d96126051913f44582e8c199ad7c6d6819e9a56483f637feaac9448aac"), |
||||
IP: net.ParseIP("2001:db8:3c4d:15::abcd:ef12"), |
||||
UDP: 3333, |
||||
TCP: 3333, |
||||
}, |
||||
{ |
||||
ID: MustHexID("8dcab8618c3253b558d459da53bd8fa68935a719aff8b811197101a4b2b47dd2d47295286fc00cc081bb542d760717d1bdd6bec2c37cd72eca367d6dd3b9df73"), |
||||
IP: net.ParseIP("2001:db8:85a3:8d3:1319:8a2e:370:7348"), |
||||
UDP: 999, |
||||
TCP: 1000, |
||||
}, |
||||
}, |
||||
Expiration: 1136239445, |
||||
Rest: []rlp.RawValue{{0x01}, {0x02}, {0x03}}, |
||||
}, |
||||
}, |
||||
} |
||||
|
||||
func TestForwardCompatibility(t *testing.T) { |
||||
t.Skip("skipped while working on discovery v5") |
||||
|
||||
testkey, _ := crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291") |
||||
wantNodeID := PubkeyID(&testkey.PublicKey) |
||||
|
||||
for _, test := range testPackets { |
||||
input, err := hex.DecodeString(test.input) |
||||
if err != nil { |
||||
t.Fatalf("invalid hex: %s", test.input) |
||||
} |
||||
var pkt ingressPacket |
||||
if err := decodePacket(input, &pkt); err != nil { |
||||
t.Errorf("did not accept packet %s\n%v", test.input, err) |
||||
continue |
||||
} |
||||
if !reflect.DeepEqual(pkt.data, test.wantPacket) { |
||||
t.Errorf("got %s\nwant %s", spew.Sdump(pkt.data), spew.Sdump(test.wantPacket)) |
||||
} |
||||
if pkt.remoteID != wantNodeID { |
||||
t.Errorf("got id %v\nwant id %v", pkt.remoteID, wantNodeID) |
||||
} |
||||
} |
||||
} |
||||
|
||||
// dgramPipe is a fake UDP socket. It queues all sent datagrams.
|
||||
type dgramPipe struct { |
||||
mu *sync.Mutex |
||||
cond *sync.Cond |
||||
closing chan struct{} |
||||
closed bool |
||||
queue [][]byte |
||||
} |
||||
|
||||
func newpipe() *dgramPipe { |
||||
mu := new(sync.Mutex) |
||||
return &dgramPipe{ |
||||
closing: make(chan struct{}), |
||||
cond: &sync.Cond{L: mu}, |
||||
mu: mu, |
||||
} |
||||
} |
||||
|
||||
// WriteToUDP queues a datagram.
|
||||
func (c *dgramPipe) WriteToUDP(b []byte, to *net.UDPAddr) (n int, err error) { |
||||
msg := make([]byte, len(b)) |
||||
copy(msg, b) |
||||
c.mu.Lock() |
||||
defer c.mu.Unlock() |
||||
if c.closed { |
||||
return 0, errors.New("closed") |
||||
} |
||||
c.queue = append(c.queue, msg) |
||||
c.cond.Signal() |
||||
return len(b), nil |
||||
} |
||||
|
||||
// ReadFromUDP just hangs until the pipe is closed.
|
||||
func (c *dgramPipe) ReadFromUDP(b []byte) (n int, addr *net.UDPAddr, err error) { |
||||
<-c.closing |
||||
return 0, nil, io.EOF |
||||
} |
||||
|
||||
func (c *dgramPipe) Close() error { |
||||
c.mu.Lock() |
||||
defer c.mu.Unlock() |
||||
if !c.closed { |
||||
close(c.closing) |
||||
c.closed = true |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
func (c *dgramPipe) LocalAddr() net.Addr { |
||||
return &net.UDPAddr{IP: testLocal.IP, Port: int(testLocal.UDP)} |
||||
} |
||||
|
||||
func (c *dgramPipe) waitPacketOut() []byte { |
||||
c.mu.Lock() |
||||
defer c.mu.Unlock() |
||||
for len(c.queue) == 0 { |
||||
c.cond.Wait() |
||||
} |
||||
p := c.queue[0] |
||||
copy(c.queue, c.queue[1:]) |
||||
c.queue = c.queue[:len(c.queue)-1] |
||||
return p |
||||
} |
||||
Loading…
Reference in new issue