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p2p/discover: port to p2p/enode

Browse source 
This ports the discovery code to the new node representation in
p2p/enode. The wire protocol is unchanged, this can be considered a
refactoring change. The Kademlia table can now deal with nodes using an
arbitrary identity scheme. This requires a few incompatible API changes:

  - Table.Lookup is not available anymore. It used to take a public key
    as argument because v4 protocol requires one. Its replacement is
    LookupRandom.
  - Table.Resolve takes *enode.Node instead of NodeID. This is also for
    v4 protocol compatibility because nodes cannot be looked up by ID
    alone.
  - Types Node and NodeID are gone. Further commits in the series will be
    fixes all over the the codebase to deal with those removals.
This commit is contained in:
Felix Lange 2018-09-11 16:48:53 +02:00
parent 763779faf6
commit 9bf9211c9b
9 changed files with 684 additions and 1984 deletions
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370
p2p/discover/database.go
View file

@ -1,370 +0,0 @@
// Copyright 2015 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 node database, storing previously seen nodes and any collected
// metadata about them for QoS purposes.
package discover
import (
"bytes"
"crypto/rand"
"encoding/binary"
"os"
"sync"
"time"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/rlp"
"github.com/syndtr/goleveldb/leveldb"
"github.com/syndtr/goleveldb/leveldb/errors"
"github.com/syndtr/goleveldb/leveldb/iterator"
"github.com/syndtr/goleveldb/leveldb/opt"
"github.com/syndtr/goleveldb/leveldb/storage"
"github.com/syndtr/goleveldb/leveldb/util"
)
var (
nodeDBNilNodeID = NodeID{} // Special node ID to use as a nil element.
nodeDBNodeExpiration = 24 * time.Hour // Time after which an unseen node should be dropped.
nodeDBCleanupCycle = time.Hour // Time period for running the expiration task.
nodeDBVersion = 5
)
// nodeDB stores all nodes we know about.
type nodeDB struct {
lvl *leveldb.DB // Interface to the database itself
self NodeID // Own node id to prevent adding it into the database
runner sync.Once // Ensures we can start at most one expirer
quit chan struct{} // Channel to signal the expiring thread to stop
}
// Schema layout for the node database
var (
nodeDBVersionKey = []byte("version") // Version of the database to flush if changes
nodeDBItemPrefix = []byte("n:") // Identifier to prefix node entries with
nodeDBDiscoverRoot = ":discover"
nodeDBDiscoverPing = nodeDBDiscoverRoot + ":lastping"
nodeDBDiscoverPong = nodeDBDiscoverRoot + ":lastpong"
nodeDBDiscoverFindFails = nodeDBDiscoverRoot + ":findfail"
)
// newNodeDB creates a new node database for storing and retrieving infos about
// known peers in the network. If no path is given, an in-memory, temporary
// database is constructed.
func newNodeDB(path string, version int, self NodeID) (*nodeDB, error) {
if path == "" {
return newMemoryNodeDB(self)
}
return newPersistentNodeDB(path, version, self)
}
// newMemoryNodeDB creates a new in-memory node database without a persistent
// backend.
func newMemoryNodeDB(self NodeID) (*nodeDB, error) {
db, err := leveldb.Open(storage.NewMemStorage(), nil)
if err != nil {
return nil, err
}
return &nodeDB{
lvl: db,
self: self,
quit: make(chan struct{}),
}, nil
}
// newPersistentNodeDB creates/opens a leveldb backed persistent node database,
// also flushing its contents in case of a version mismatch.
func newPersistentNodeDB(path string, version int, self NodeID) (*nodeDB, error) {
opts := &opt.Options{OpenFilesCacheCapacity: 5}
db, err := leveldb.OpenFile(path, opts)
if _, iscorrupted := err.(*errors.ErrCorrupted); iscorrupted {
db, err = leveldb.RecoverFile(path, nil)
}
if err != nil {
return nil, err
}
// The nodes contained in the cache correspond to a certain protocol version.
// Flush all nodes if the version doesn't match.
currentVer := make([]byte, binary.MaxVarintLen64)
currentVer = currentVer[:binary.PutVarint(currentVer, int64(version))]
blob, err := db.Get(nodeDBVersionKey, nil)
switch err {
case leveldb.ErrNotFound:
// Version not found (i.e. empty cache), insert it
if err := db.Put(nodeDBVersionKey, currentVer, nil); err != nil {
db.Close()
return nil, err
}
case nil:
// Version present, flush if different
if !bytes.Equal(blob, currentVer) {
db.Close()
if err = os.RemoveAll(path); err != nil {
return nil, err
}
return newPersistentNodeDB(path, version, self)
}
}
return &nodeDB{
lvl: db,
self: self,
quit: make(chan struct{}),
}, nil
}
// makeKey generates the leveldb key-blob from a node id and its particular
// field of interest.
func makeKey(id NodeID, field string) []byte {
if bytes.Equal(id[:], nodeDBNilNodeID[:]) {
return []byte(field)
}
return append(nodeDBItemPrefix, append(id[:], field...)...)
}
// splitKey tries to split a database key into a node id and a field part.
func splitKey(key []byte) (id NodeID, field string) {
// If the key is not of a node, return it plainly
if !bytes.HasPrefix(key, nodeDBItemPrefix) {
return NodeID{}, string(key)
}
// Otherwise split the id and field
item := key[len(nodeDBItemPrefix):]
copy(id[:], item[:len(id)])
field = string(item[len(id):])
return id, field
}
// fetchInt64 retrieves an integer instance associated with a particular
// database key.
func (db *nodeDB) fetchInt64(key []byte) int64 {
blob, err := db.lvl.Get(key, nil)
if err != nil {
return 0
}
val, read := binary.Varint(blob)
if read <= 0 {
return 0
}
return val
}
// storeInt64 update a specific database entry to the current time instance as a
// unix timestamp.
func (db *nodeDB) storeInt64(key []byte, n int64) error {
blob := make([]byte, binary.MaxVarintLen64)
blob = blob[:binary.PutVarint(blob, n)]
return db.lvl.Put(key, blob, nil)
}
// node retrieves a node with a given id from the database.
func (db *nodeDB) node(id NodeID) *Node {
blob, err := db.lvl.Get(makeKey(id, nodeDBDiscoverRoot), nil)
if err != nil {
return nil
}
node := new(Node)
if err := rlp.DecodeBytes(blob, node); err != nil {
log.Error("Failed to decode node RLP", "err", err)
return nil
}
node.sha = crypto.Keccak256Hash(node.ID[:])
return node
}
// updateNode inserts - potentially overwriting - a node into the peer database.
func (db *nodeDB) updateNode(node *Node) error {
blob, err := rlp.EncodeToBytes(node)
if err != nil {
return err
}
return db.lvl.Put(makeKey(node.ID, nodeDBDiscoverRoot), blob, nil)
}
// deleteNode deletes all information/keys associated with a node.
func (db *nodeDB) deleteNode(id NodeID) error {
deleter := db.lvl.NewIterator(util.BytesPrefix(makeKey(id, "")), nil)
for deleter.Next() {
if err := db.lvl.Delete(deleter.Key(), nil); err != nil {
return err
}
}
return nil
}
// ensureExpirer is a small helper method ensuring that the data expiration
// mechanism is running. If the expiration goroutine is already running, this
// method simply returns.
//
// The goal is to start the data evacuation only after the network successfully
// bootstrapped itself (to prevent dumping potentially useful seed nodes). Since
// it would require significant overhead to exactly trace the first successful
// convergence, it's simpler to "ensure" the correct state when an appropriate
// condition occurs (i.e. a successful bonding), and discard further events.
func (db *nodeDB) ensureExpirer() {
db.runner.Do(func() { go db.expirer() })
}
// expirer should be started in a go routine, and is responsible for looping ad
// infinitum and dropping stale data from the database.
func (db *nodeDB) expirer() {
tick := time.NewTicker(nodeDBCleanupCycle)
defer tick.Stop()
for {
select {
case <-tick.C:
if err := db.expireNodes(); err != nil {
log.Error("Failed to expire nodedb items", "err", err)
}
case <-db.quit:
return
}
}
}
// expireNodes iterates over the database and deletes all nodes that have not
// been seen (i.e. received a pong from) for some allotted time.
func (db *nodeDB) expireNodes() error {
threshold := time.Now().Add(-nodeDBNodeExpiration)
// Find discovered nodes that are older than the allowance
it := db.lvl.NewIterator(nil, nil)
defer it.Release()
for it.Next() {
// Skip the item if not a discovery node
id, field := splitKey(it.Key())
if field != nodeDBDiscoverRoot {
continue
}
// Skip the node if not expired yet (and not self)
if !bytes.Equal(id[:], db.self[:]) {
if seen := db.lastPongReceived(id); seen.After(threshold) {
continue
}
}
// Otherwise delete all associated information
db.deleteNode(id)
}
return nil
}
// lastPingReceived retrieves the time of the last ping packet sent by the remote node.
func (db *nodeDB) lastPingReceived(id NodeID) time.Time {
return time.Unix(db.fetchInt64(makeKey(id, nodeDBDiscoverPing)), 0)
}
// updateLastPing updates the last time remote node pinged us.
func (db *nodeDB) updateLastPingReceived(id NodeID, instance time.Time) error {
return db.storeInt64(makeKey(id, nodeDBDiscoverPing), instance.Unix())
}
// lastPongReceived retrieves the time of the last successful pong from remote node.
func (db *nodeDB) lastPongReceived(id NodeID) time.Time {
return time.Unix(db.fetchInt64(makeKey(id, nodeDBDiscoverPong)), 0)
}
// hasBond reports whether the given node is considered bonded.
func (db *nodeDB) hasBond(id NodeID) bool {
return time.Since(db.lastPongReceived(id)) < nodeDBNodeExpiration
}
// updateLastPongReceived updates the last pong time of a node.
func (db *nodeDB) updateLastPongReceived(id NodeID, instance time.Time) error {
return db.storeInt64(makeKey(id, nodeDBDiscoverPong), instance.Unix())
}
// findFails retrieves the number of findnode failures since bonding.
func (db *nodeDB) findFails(id NodeID) int {
return int(db.fetchInt64(makeKey(id, nodeDBDiscoverFindFails)))
}
// updateFindFails updates the number of findnode failures since bonding.
func (db *nodeDB) updateFindFails(id NodeID, fails int) error {
return db.storeInt64(makeKey(id, nodeDBDiscoverFindFails), int64(fails))
}
// querySeeds retrieves random nodes to be used as potential seed nodes
// for bootstrapping.
func (db *nodeDB) querySeeds(n int, maxAge time.Duration) []*Node {
var (
now = time.Now()
nodes = make([]*Node, 0, n)
it = db.lvl.NewIterator(nil, nil)
id NodeID
)
defer it.Release()
seek:
for seeks := 0; len(nodes) < n && seeks < n*5; seeks++ {
// Seek to a random entry. The first byte is incremented by a
// random amount each time in order to increase the likelihood
// of hitting all existing nodes in very small databases.
ctr := id[0]
rand.Read(id[:])
id[0] = ctr + id[0]%16
it.Seek(makeKey(id, nodeDBDiscoverRoot))
n := nextNode(it)
if n == nil {
id[0] = 0
continue seek // iterator exhausted
}
if n.ID == db.self {
continue seek
}
if now.Sub(db.lastPongReceived(n.ID)) > maxAge {
continue seek
}
for i := range nodes {
if nodes[i].ID == n.ID {
continue seek // duplicate
}
}
nodes = append(nodes, n)
}
return nodes
}
// reads the next node record from the iterator, skipping over other
// database entries.
func nextNode(it iterator.Iterator) *Node {
for end := false; !end; end = !it.Next() {
id, field := splitKey(it.Key())
if field != nodeDBDiscoverRoot {
continue
}
var n Node
if err := rlp.DecodeBytes(it.Value(), &n); err != nil {
log.Warn("Failed to decode node RLP", "id", id, "err", err)
continue
}
return &n
}
return nil
}
// close flushes and closes the database files.
func (db *nodeDB) close() {
close(db.quit)
db.lvl.Close()
}

380
p2p/discover/database_test.go
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@ -1,380 +0,0 @@
// Copyright 2015 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 discover
import (
"bytes"
"io/ioutil"
"net"
"os"
"path/filepath"
"reflect"
"testing"
"time"
)
var nodeDBKeyTests = []struct {
id NodeID
field string
key []byte
}{
{
id: NodeID{},
field: "version",
key: []byte{0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e}, // field
},
{
id: MustHexID("0x1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
field: ":discover",
key: []byte{0x6e, 0x3a, // prefix
0x1d, 0xd9, 0xd6, 0x5c, 0x45, 0x52, 0xb5, 0xeb, // node id
0x43, 0xd5, 0xad, 0x55, 0xa2, 0xee, 0x3f, 0x56, //
0xc6, 0xcb, 0xc1, 0xc6, 0x4a, 0x5c, 0x8d, 0x65, //
0x9f, 0x51, 0xfc, 0xd5, 0x1b, 0xac, 0xe2, 0x43, //
0x51, 0x23, 0x2b, 0x8d, 0x78, 0x21, 0x61, 0x7d, //
0x2b, 0x29, 0xb5, 0x4b, 0x81, 0xcd, 0xef, 0xb9, //
0xb3, 0xe9, 0xc3, 0x7d, 0x7f, 0xd5, 0xf6, 0x32, //
0x70, 0xbc, 0xc9, 0xe1, 0xa6, 0xf6, 0xa4, 0x39, //
0x3a, 0x64, 0x69, 0x73, 0x63, 0x6f, 0x76, 0x65, 0x72, // field
},
},
}
func TestNodeDBKeys(t *testing.T) {
for i, tt := range nodeDBKeyTests {
if key := makeKey(tt.id, tt.field); !bytes.Equal(key, tt.key) {
t.Errorf("make test %d: key mismatch: have 0x%x, want 0x%x", i, key, tt.key)
}
id, field := splitKey(tt.key)
if !bytes.Equal(id[:], tt.id[:]) {
t.Errorf("split test %d: id mismatch: have 0x%x, want 0x%x", i, id, tt.id)
}
if field != tt.field {
t.Errorf("split test %d: field mismatch: have 0x%x, want 0x%x", i, field, tt.field)
}
}
}
var nodeDBInt64Tests = []struct {
key []byte
value int64
}{
{key: []byte{0x01}, value: 1},
{key: []byte{0x02}, value: 2},
{key: []byte{0x03}, value: 3},
}
func TestNodeDBInt64(t *testing.T) {
db, _ := newNodeDB("", nodeDBVersion, NodeID{})
defer db.close()
tests := nodeDBInt64Tests
for i := 0; i < len(tests); i++ {
// Insert the next value
if err := db.storeInt64(tests[i].key, tests[i].value); err != nil {
t.Errorf("test %d: failed to store value: %v", i, err)
}
// Check all existing and non existing values
for j := 0; j < len(tests); j++ {
num := db.fetchInt64(tests[j].key)
switch {
case j <= i && num != tests[j].value:
t.Errorf("test %d, item %d: value mismatch: have %v, want %v", i, j, num, tests[j].value)
case j > i && num != 0:
t.Errorf("test %d, item %d: value mismatch: have %v, want %v", i, j, num, 0)
}
}
}
}
func TestNodeDBFetchStore(t *testing.T) {
node := NewNode(
MustHexID("0x1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
net.IP{192, 168, 0, 1},
30303,
30303,
)
inst := time.Now()
num := 314
db, _ := newNodeDB("", nodeDBVersion, NodeID{})
defer db.close()
// Check fetch/store operations on a node ping object
if stored := db.lastPingReceived(node.ID); stored.Unix() != 0 {
t.Errorf("ping: non-existing object: %v", stored)
}
if err := db.updateLastPingReceived(node.ID, inst); err != nil {
t.Errorf("ping: failed to update: %v", err)
}
if stored := db.lastPingReceived(node.ID); stored.Unix() != inst.Unix() {
t.Errorf("ping: value mismatch: have %v, want %v", stored, inst)
}
// Check fetch/store operations on a node pong object
if stored := db.lastPongReceived(node.ID); stored.Unix() != 0 {
t.Errorf("pong: non-existing object: %v", stored)
}
if err := db.updateLastPongReceived(node.ID, inst); err != nil {
t.Errorf("pong: failed to update: %v", err)
}
if stored := db.lastPongReceived(node.ID); stored.Unix() != inst.Unix() {
t.Errorf("pong: value mismatch: have %v, want %v", stored, inst)
}
// Check fetch/store operations on a node findnode-failure object
if stored := db.findFails(node.ID); stored != 0 {
t.Errorf("find-node fails: non-existing object: %v", stored)
}
if err := db.updateFindFails(node.ID, num); err != nil {
t.Errorf("find-node fails: failed to update: %v", err)
}
if stored := db.findFails(node.ID); stored != num {
t.Errorf("find-node fails: value mismatch: have %v, want %v", stored, num)
}
// Check fetch/store operations on an actual node object
if stored := db.node(node.ID); stored != nil {
t.Errorf("node: non-existing object: %v", stored)
}
if err := db.updateNode(node); err != nil {
t.Errorf("node: failed to update: %v", err)
}
if stored := db.node(node.ID); stored == nil {
t.Errorf("node: not found")
} else if !reflect.DeepEqual(stored, node) {
t.Errorf("node: data mismatch: have %v, want %v", stored, node)
}
}
var nodeDBSeedQueryNodes = []struct {
node *Node
pong time.Time
}{
// This one should not be in the result set because its last
// pong time is too far in the past.
{
node: NewNode(
MustHexID("0x84d9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
net.IP{127, 0, 0, 3},
30303,
30303,
),
pong: time.Now().Add(-3 * time.Hour),
},
// This one shouldn't be in in the result set because its
// nodeID is the local node's ID.
{
node: NewNode(
MustHexID("0x57d9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
net.IP{127, 0, 0, 3},
30303,
30303,
),
pong: time.Now().Add(-4 * time.Second),
},
// These should be in the result set.
{
node: NewNode(
MustHexID("0x22d9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
net.IP{127, 0, 0, 1},
30303,
30303,
),
pong: time.Now().Add(-2 * time.Second),
},
{
node: NewNode(
MustHexID("0x44d9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
net.IP{127, 0, 0, 2},
30303,
30303,
),
pong: time.Now().Add(-3 * time.Second),
},
{
node: NewNode(
MustHexID("0xe2d9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
net.IP{127, 0, 0, 3},
30303,
30303,
),
pong: time.Now().Add(-1 * time.Second),
},
}
func TestNodeDBSeedQuery(t *testing.T) {
db, _ := newNodeDB("", nodeDBVersion, nodeDBSeedQueryNodes[1].node.ID)
defer db.close()
// Insert a batch of nodes for querying
for i, seed := range nodeDBSeedQueryNodes {
if err := db.updateNode(seed.node); err != nil {
t.Fatalf("node %d: failed to insert: %v", i, err)
}
if err := db.updateLastPongReceived(seed.node.ID, seed.pong); err != nil {
t.Fatalf("node %d: failed to insert bondTime: %v", i, err)
}
}
// Retrieve the entire batch and check for duplicates
seeds := db.querySeeds(len(nodeDBSeedQueryNodes)*2, time.Hour)
have := make(map[NodeID]struct{})
for _, seed := range seeds {
have[seed.ID] = struct{}{}
}
want := make(map[NodeID]struct{})
for _, seed := range nodeDBSeedQueryNodes[2:] {
want[seed.node.ID] = struct{}{}
}
if len(seeds) != len(want) {
t.Errorf("seed count mismatch: have %v, want %v", len(seeds), len(want))
}
for id := range have {
if _, ok := want[id]; !ok {
t.Errorf("extra seed: %v", id)
}
}
for id := range want {
if _, ok := have[id]; !ok {
t.Errorf("missing seed: %v", id)
}
}
}
func TestNodeDBPersistency(t *testing.T) {
root, err := ioutil.TempDir("", "nodedb-")
if err != nil {
t.Fatalf("failed to create temporary data folder: %v", err)
}
defer os.RemoveAll(root)
var (
testKey = []byte("somekey")
testInt = int64(314)
)
// Create a persistent database and store some values
db, err := newNodeDB(filepath.Join(root, "database"), nodeDBVersion, NodeID{})
if err != nil {
t.Fatalf("failed to create persistent database: %v", err)
}
if err := db.storeInt64(testKey, testInt); err != nil {
t.Fatalf("failed to store value: %v.", err)
}
db.close()
// Reopen the database and check the value
db, err = newNodeDB(filepath.Join(root, "database"), nodeDBVersion, NodeID{})
if err != nil {
t.Fatalf("failed to open persistent database: %v", err)
}
if val := db.fetchInt64(testKey); val != testInt {
t.Fatalf("value mismatch: have %v, want %v", val, testInt)
}
db.close()
// Change the database version and check flush
db, err = newNodeDB(filepath.Join(root, "database"), nodeDBVersion+1, NodeID{})
if err != nil {
t.Fatalf("failed to open persistent database: %v", err)
}
if val := db.fetchInt64(testKey); val != 0 {
t.Fatalf("value mismatch: have %v, want %v", val, 0)
}
db.close()
}
var nodeDBExpirationNodes = []struct {
node *Node
pong time.Time
exp bool
}{
{
node: NewNode(
MustHexID("0x01d9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
net.IP{127, 0, 0, 1},
30303,
30303,
),
pong: time.Now().Add(-nodeDBNodeExpiration + time.Minute),
exp: false,
}, {
node: NewNode(
MustHexID("0x02d9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
net.IP{127, 0, 0, 2},
30303,
30303,
),
pong: time.Now().Add(-nodeDBNodeExpiration - time.Minute),
exp: true,
},
}
func TestNodeDBExpiration(t *testing.T) {
db, _ := newNodeDB("", nodeDBVersion, NodeID{})
defer db.close()
// Add all the test nodes and set their last pong time
for i, seed := range nodeDBExpirationNodes {
if err := db.updateNode(seed.node); err != nil {
t.Fatalf("node %d: failed to insert: %v", i, err)
}
if err := db.updateLastPongReceived(seed.node.ID, seed.pong); err != nil {
t.Fatalf("node %d: failed to update bondTime: %v", i, err)
}
}
// Expire some of them, and check the rest
if err := db.expireNodes(); err != nil {
t.Fatalf("failed to expire nodes: %v", err)
}
for i, seed := range nodeDBExpirationNodes {
node := db.node(seed.node.ID)
if (node == nil && !seed.exp) || (node != nil && seed.exp) {
t.Errorf("node %d: expiration mismatch: have %v, want %v", i, node, seed.exp)
}
}
}
func TestNodeDBSelfExpiration(t *testing.T) {
// Find a node in the tests that shouldn't expire, and assign it as self
var self NodeID
for _, node := range nodeDBExpirationNodes {
if !node.exp {
self = node.node.ID
break
}
}
db, _ := newNodeDB("", nodeDBVersion, self)
defer db.close()
// Add all the test nodes and set their last pong time
for i, seed := range nodeDBExpirationNodes {
if err := db.updateNode(seed.node); err != nil {
t.Fatalf("node %d: failed to insert: %v", i, err)
}
if err := db.updateLastPongReceived(seed.node.ID, seed.pong); err != nil {
t.Fatalf("node %d: failed to update bondTime: %v", i, err)
}
}
// Expire the nodes and make sure self has been evacuated too
if err := db.expireNodes(); err != nil {
t.Fatalf("failed to expire nodes: %v", err)
}
node := db.node(self)
if node != nil {
t.Errorf("self not evacuated")
}
}

424
p2p/discover/node.go
View file

@ -18,415 +18,87 @@ package discover
import ( import (
"crypto/ecdsa" "crypto/ecdsa"
"crypto/elliptic"
"encoding/hex"
"errors" "errors"
"fmt"
"math/big" "math/big"
"math/rand"
"net" "net"
"net/url"
"regexp"
"strconv"
"strings"
"time" "time"
"github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common/math"
"github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/crypto/secp256k1" "github.com/ethereum/go-ethereum/crypto/secp256k1"
"github.com/ethereum/go-ethereum/p2p/enode"
) )
const NodeIDBits = 512 // node represents a host on the network.
// Node represents a host on the network.
// The fields of Node may not be modified. // The fields of Node may not be modified.
type Node struct { type node struct {
IP net.IP // len 4 for IPv4 or 16 for IPv6 enode.Node
UDP, TCP uint16 // port numbers addedAt time.Time // time when the node was added to the table
ID NodeID // the node's public key
// This is a cached copy of sha3(ID) which is used for node
// distance calculations. This is part of Node in order to make it
// possible to write tests that need a node at a certain distance.
// In those tests, the content of sha will not actually correspond
// with ID.
sha common.Hash
// Time when the node was added to the table.
addedAt time.Time
} }
// NewNode creates a new node. It is mostly meant to be used for type encPubkey [64]byte
// testing purposes.
func NewNode(id NodeID, ip net.IP, udpPort, tcpPort uint16) *Node { func encodePubkey(key *ecdsa.PublicKey) encPubkey {
if ipv4 := ip.To4(); ipv4 != nil { var e encPubkey
ip = ipv4 math.ReadBits(key.X, e[:len(e)/2])
} math.ReadBits(key.Y, e[len(e)/2:])
return &Node{ return e
IP: ip,
UDP: udpPort,
TCP: tcpPort,
ID: id,
sha: crypto.Keccak256Hash(id[:]),
}
} }
func (n *Node) addr() *net.UDPAddr { func decodePubkey(e encPubkey) (*ecdsa.PublicKey, error) {
return &net.UDPAddr{IP: n.IP, Port: int(n.UDP)}
}
// Incomplete returns true for nodes with no IP address.
func (n *Node) Incomplete() bool {
return n.IP == nil
}
// checks whether n is a valid complete node.
func (n *Node) validateComplete() error {
if n.Incomplete() {
return errors.New("incomplete node")
}
if n.UDP == 0 {
return errors.New("missing UDP port")
}
if n.TCP == 0 {
return errors.New("missing TCP port")
}
if n.IP.IsMulticast() || n.IP.IsUnspecified() {
return errors.New("invalid IP (multicast/unspecified)")
}
_, err := n.ID.Pubkey() // validate the key (on curve, etc.)
return err
}
// The string representation of a Node is a URL.
// Please see ParseNode for a description of the format.
func (n *Node) String() string {
u := url.URL{Scheme: "enode"}
if n.Incomplete() {
u.Host = fmt.Sprintf("%x", n.ID[:])
} else {
addr := net.TCPAddr{IP: n.IP, Port: int(n.TCP)}
u.User = url.User(fmt.Sprintf("%x", n.ID[:]))
u.Host = addr.String()
if n.UDP != n.TCP {
u.RawQuery = "discport=" + strconv.Itoa(int(n.UDP))
}
}
return u.String()
}
var incompleteNodeURL = regexp.MustCompile("(?i)^(?:enode://)?([0-9a-f]+)$")
// ParseNode parses a node designator.
//
// There are two basic forms of node designators
// - incomplete nodes, which only have the public key (node ID)
// - complete nodes, which contain the public key and IP/Port information
//
// For incomplete nodes, the designator must look like one of these
//
// enode://<hex node id>
// <hex node id>
//
// For complete nodes, the node ID is encoded in the username portion
// of the URL, separated from the host by an @ sign. The hostname can
// only be given as an IP address, DNS domain names are not allowed.
// The port in the host name section is the TCP listening port. If the
// TCP and UDP (discovery) ports differ, the UDP port is specified as
// query parameter "discport".
//
// In the following example, the node URL describes
// a node with IP address 10.3.58.6, TCP listening port 30303
// and UDP discovery port 30301.
//
// enode://<hex node id>@10.3.58.6:30303?discport=30301
func ParseNode(rawurl string) (*Node, error) {
if m := incompleteNodeURL.FindStringSubmatch(rawurl); m != nil {
id, err := HexID(m[1])
if err != nil {
return nil, fmt.Errorf("invalid node ID (%v)", err)
}
return NewNode(id, nil, 0, 0), nil
}
return parseComplete(rawurl)
}
func parseComplete(rawurl string) (*Node, error) {
var (
id NodeID
ip net.IP
tcpPort, udpPort uint64
)
u, err := url.Parse(rawurl)
if err != nil {
return nil, err
}
if u.Scheme != "enode" {
return nil, errors.New("invalid URL scheme, want \"enode\"")
}
// Parse the Node ID from the user portion.
if u.User == nil {
return nil, errors.New("does not contain node ID")
}
if id, err = HexID(u.User.String()); err != nil {
return nil, fmt.Errorf("invalid node ID (%v)", err)
}
// Parse the IP address.
host, port, err := net.SplitHostPort(u.Host)
if err != nil {
return nil, fmt.Errorf("invalid host: %v", err)
}
if ip = net.ParseIP(host); ip == nil {
return nil, errors.New("invalid IP address")
}
// Ensure the IP is 4 bytes long for IPv4 addresses.
if ipv4 := ip.To4(); ipv4 != nil {
ip = ipv4
}
// Parse the port numbers.
if tcpPort, err = strconv.ParseUint(port, 10, 16); err != nil {
return nil, errors.New("invalid port")
}
udpPort = tcpPort
qv := u.Query()
if qv.Get("discport") != "" {
udpPort, err = strconv.ParseUint(qv.Get("discport"), 10, 16)
if err != nil {
return nil, errors.New("invalid discport in query")
}
}
return NewNode(id, ip, uint16(udpPort), uint16(tcpPort)), nil
}
// MustParseNode parses a node URL. It panics if the URL is not valid.
func MustParseNode(rawurl string) *Node {
n, err := ParseNode(rawurl)
if err != nil {
panic("invalid node URL: " + err.Error())
}
return n
}
// MarshalText implements encoding.TextMarshaler.
func (n *Node) MarshalText() ([]byte, error) {
return []byte(n.String()), nil
}
// UnmarshalText implements encoding.TextUnmarshaler.
func (n *Node) UnmarshalText(text []byte) error {
dec, err := ParseNode(string(text))
if err == nil {
*n = *dec
}
return err
}
// NodeID is a unique identifier for each node.
// The node identifier is a marshaled elliptic curve public key.
type NodeID [NodeIDBits / 8]byte
// Bytes returns a byte slice representation of the NodeID
func (n NodeID) Bytes() []byte {
return n[:]
}
// NodeID prints as a long hexadecimal number.
func (n NodeID) String() string {
return fmt.Sprintf("%x", n[:])
}
// The Go syntax representation of a NodeID is a call to HexID.
func (n NodeID) GoString() string {
return fmt.Sprintf("discover.HexID(\"%x\")", n[:])
}
// TerminalString returns a shortened hex string for terminal logging.
func (n NodeID) TerminalString() string {
return hex.EncodeToString(n[:8])
}
// MarshalText implements the encoding.TextMarshaler interface.
func (n NodeID) MarshalText() ([]byte, error) {
return []byte(hex.EncodeToString(n[:])), nil
}
// UnmarshalText implements the encoding.TextUnmarshaler interface.
func (n *NodeID) UnmarshalText(text []byte) error {
id, err := HexID(string(text))
if err != nil {
return err
}
*n = id
return nil
}
// BytesID converts a byte slice to a NodeID
func BytesID(b []byte) (NodeID, error) {
var id NodeID
if len(b) != len(id) {
return id, fmt.Errorf("wrong length, want %d bytes", len(id))
}
copy(id[:], b)
return id, nil
}
// MustBytesID converts a byte slice to a NodeID.
// It panics if the byte slice is not a valid NodeID.
func MustBytesID(b []byte) NodeID {
id, err := BytesID(b)
if err != nil {
panic(err)
}
return id
}
// HexID converts a hex string to a NodeID.
// The string may be prefixed with 0x.
func HexID(in string) (NodeID, error) {
var id NodeID
b, err := hex.DecodeString(strings.TrimPrefix(in, "0x"))
if err != nil {
return id, err
} else if len(b) != len(id) {
return id, fmt.Errorf("wrong length, want %d hex chars", len(id)*2)
}
copy(id[:], b)
return id, nil
}
// MustHexID converts a hex string to a NodeID.
// It panics if the string is not a valid NodeID.
func MustHexID(in string) NodeID {
id, err := HexID(in)
if err != nil {
panic(err)
}
return id
}
// PubkeyID returns a marshaled representation of the given public key.
func PubkeyID(pub *ecdsa.PublicKey) NodeID {
var id NodeID
pbytes := elliptic.Marshal(pub.Curve, pub.X, pub.Y)
if len(pbytes)-1 != len(id) {
panic(fmt.Errorf("need %d bit pubkey, got %d bits", (len(id)+1)*8, len(pbytes)))
}
copy(id[:], pbytes[1:])
return id
}
// Pubkey returns the public key represented by the node ID.
// It returns an error if the ID is not a point on the curve.
func (id NodeID) Pubkey() (*ecdsa.PublicKey, error) {
p := &ecdsa.PublicKey{Curve: crypto.S256(), X: new(big.Int), Y: new(big.Int)} p := &ecdsa.PublicKey{Curve: crypto.S256(), X: new(big.Int), Y: new(big.Int)}
half := len(id) / 2 half := len(e) / 2
p.X.SetBytes(id[:half]) p.X.SetBytes(e[:half])
p.Y.SetBytes(id[half:]) p.Y.SetBytes(e[half:])
if !p.Curve.IsOnCurve(p.X, p.Y) { if !p.Curve.IsOnCurve(p.X, p.Y) {
return nil, errors.New("id is invalid secp256k1 curve point") return nil, errors.New("invalid secp256k1 curve point")
} }
return p, nil return p, nil
} }
// recoverNodeID computes the public key used to sign the func (e encPubkey) id() enode.ID {
return enode.ID(crypto.Keccak256Hash(e[:]))
}
// recoverNodeKey computes the public key used to sign the
// given hash from the signature. // given hash from the signature.
func recoverNodeID(hash, sig []byte) (id NodeID, err error) { func recoverNodeKey(hash, sig []byte) (key encPubkey, err error) {
pubkey, err := secp256k1.RecoverPubkey(hash, sig) pubkey, err := secp256k1.RecoverPubkey(hash, sig)
if err != nil { if err != nil {
return id, err return key, err
} }
if len(pubkey)-1 != len(id) { copy(key[:], pubkey[1:])
return id, fmt.Errorf("recovered pubkey has %d bits, want %d bits", len(pubkey)*8, (len(id)+1)*8) return key, nil
}
for i := range id {
id[i] = pubkey[i+1]
}
return id, nil
} }
// distcmp compares the distances a->target and b->target. func wrapNode(n *enode.Node) *node {
// Returns -1 if a is closer to target, 1 if b is closer to target return &node{Node: *n}
// and 0 if they are equal.
func distcmp(target, a, b common.Hash) int {
for i := range target {
da := a[i] ^ target[i]
db := b[i] ^ target[i]
if da > db {
return 1
} else if da < db {
return -1
}
}
return 0
} }
// table of leading zero counts for bytes [0..255] func wrapNodes(ns []*enode.Node) []*node {
var lzcount = [256]int{ result := make([]*node, len(ns))
8, 7, 6, 6, 5, 5, 5, 5, for i, n := range ns {
4, 4, 4, 4, 4, 4, 4, 4, result[i] = wrapNode(n)
3, 3, 3, 3, 3, 3, 3, 3, }
3, 3, 3, 3, 3, 3, 3, 3, return result
2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2,
1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
} }
// logdist returns the logarithmic distance between a and b, log2(a ^ b). func unwrapNode(n *node) *enode.Node {
func logdist(a, b common.Hash) int { return &n.Node
lz := 0
for i := range a {
x := a[i] ^ b[i]
if x == 0 {
lz += 8
} else {
lz += lzcount[x]
break
}
}
return len(a)*8 - lz
} }
// hashAtDistance returns a random hash such that logdist(a, b) == n func unwrapNodes(ns []*node) []*enode.Node {
func hashAtDistance(a common.Hash, n int) (b common.Hash) { result := make([]*enode.Node, len(ns))
if n == 0 { for i, n := range ns {
return a result[i] = unwrapNode(n)
} }
// flip bit at position n, fill the rest with random bits return result
b = a
pos := len(a) - n/8 - 1
bit := byte(0x01) << (byte(n%8) - 1)
if bit == 0 {
pos++
bit = 0x80
} }
b[pos] = a[pos]&^bit | ^a[pos]&bit // TODO: randomize end bits
for i := pos + 1; i < len(a); i++ { func (n *node) addr() *net.UDPAddr {
b[i] = byte(rand.Intn(255)) return &net.UDPAddr{IP: n.IP(), Port: n.UDP()}
} }
return b
func (n *node) String() string {
return n.Node.String()
} }

335
p2p/discover/node_test.go
View file

@ -1,335 +0,0 @@
// Copyright 2015 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 discover
import (
"bytes"
"fmt"
"math/big"
"math/rand"
"net"
"reflect"
"strings"
"testing"
"testing/quick"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
)
func ExampleNewNode() {
id := MustHexID("1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439")
// Complete nodes contain UDP and TCP endpoints:
n1 := NewNode(id, net.ParseIP("2001:db8:3c4d:15::abcd:ef12"), 52150, 30303)
fmt.Println("n1:", n1)
fmt.Println("n1.Incomplete() ->", n1.Incomplete())
// An incomplete node can be created by passing zero values
// for all parameters except id.
n2 := NewNode(id, nil, 0, 0)
fmt.Println("n2:", n2)
fmt.Println("n2.Incomplete() ->", n2.Incomplete())
// Output:
// n1: enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@[2001:db8:3c4d:15::abcd:ef12]:30303?discport=52150
// n1.Incomplete() -> false
// n2: enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439
// n2.Incomplete() -> true
}
var parseNodeTests = []struct {
rawurl string
wantError string
wantResult *Node
}{
{
rawurl: "http://foobar",
wantError: `invalid URL scheme, want "enode"`,
},
{
rawurl: "enode://01010101@123.124.125.126:3",
wantError: `invalid node ID (wrong length, want 128 hex chars)`,
},
// Complete nodes with IP address.
{
rawurl: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@hostname:3",
wantError: `invalid IP address`,
},
{
rawurl: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@127.0.0.1:foo",
wantError: `invalid port`,
},
{
rawurl: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@127.0.0.1:3?discport=foo",
wantError: `invalid discport in query`,
},
{
rawurl: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@127.0.0.1:52150",
wantResult: NewNode(
MustHexID("0x1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
net.IP{0x7f, 0x0, 0x0, 0x1},
52150,
52150,
),
},
{
rawurl: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@[::]:52150",
wantResult: NewNode(
MustHexID("0x1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
net.ParseIP("::"),
52150,
52150,
),
},
{
rawurl: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@[2001:db8:3c4d:15::abcd:ef12]:52150",
wantResult: NewNode(
MustHexID("0x1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
net.ParseIP("2001:db8:3c4d:15::abcd:ef12"),
52150,
52150,
),
},
{
rawurl: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@127.0.0.1:52150?discport=22334",
wantResult: NewNode(
MustHexID("0x1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
net.IP{0x7f, 0x0, 0x0, 0x1},
22334,
52150,
),
},
// Incomplete nodes with no address.
{
rawurl: "1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439",
wantResult: NewNode(
MustHexID("0x1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
nil, 0, 0,
),
},
{
rawurl: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439",
wantResult: NewNode(
MustHexID("0x1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
nil, 0, 0,
),
},
// Invalid URLs
{
rawurl: "01010101",
wantError: `invalid node ID (wrong length, want 128 hex chars)`,
},
{
rawurl: "enode://01010101",
wantError: `invalid node ID (wrong length, want 128 hex chars)`,
},
{
// This test checks that errors from url.Parse are handled.
rawurl: "://foo",
wantError: `parse ://foo: missing protocol scheme`,
},
}
func TestParseNode(t *testing.T) {
for _, test := range parseNodeTests {
n, err := ParseNode(test.rawurl)
if test.wantError != "" {
if err == nil {
t.Errorf("test %q:\n got nil error, expected %#q", test.rawurl, test.wantError)
continue
} else if err.Error() != test.wantError {
t.Errorf("test %q:\n got error %#q, expected %#q", test.rawurl, err.Error(), test.wantError)
continue
}
} else {
if err != nil {
t.Errorf("test %q:\n unexpected error: %v", test.rawurl, err)
continue
}
if !reflect.DeepEqual(n, test.wantResult) {
t.Errorf("test %q:\n result mismatch:\ngot: %#v, want: %#v", test.rawurl, n, test.wantResult)
}
}
}
}
func TestNodeString(t *testing.T) {
for i, test := range parseNodeTests {
if test.wantError == "" && strings.HasPrefix(test.rawurl, "enode://") {
str := test.wantResult.String()
if str != test.rawurl {
t.Errorf("test %d: Node.String() mismatch:\ngot: %s\nwant: %s", i, str, test.rawurl)
}
}
}
}
func TestHexID(t *testing.T) {
ref := NodeID{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 106, 217, 182, 31, 165, 174, 1, 67, 7, 235, 220, 150, 66, 83, 173, 205, 159, 44, 10, 57, 42, 161, 26, 188}
id1 := MustHexID("0x000000000000000000000000000000000000000000000000000000000000000000000000000000806ad9b61fa5ae014307ebdc964253adcd9f2c0a392aa11abc")
id2 := MustHexID("000000000000000000000000000000000000000000000000000000000000000000000000000000806ad9b61fa5ae014307ebdc964253adcd9f2c0a392aa11abc")
if id1 != ref {
t.Errorf("wrong id1\ngot %v\nwant %v", id1[:], ref[:])
}
if id2 != ref {
t.Errorf("wrong id2\ngot %v\nwant %v", id2[:], ref[:])
}
}
func TestNodeID_textEncoding(t *testing.T) {
ref := NodeID{
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x10,
0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x20,
0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x30,
0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x40,
0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x50,
0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x60,
0x61, 0x62, 0x63, 0x64,
}
hex := "01020304050607080910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364"
text, err := ref.MarshalText()
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(text, []byte(hex)) {
t.Fatalf("text encoding did not match\nexpected: %s\ngot: %s", hex, text)
}
id := new(NodeID)
if err := id.UnmarshalText(text); err != nil {
t.Fatal(err)
}
if *id != ref {
t.Fatalf("text decoding did not match\nexpected: %s\ngot: %s", ref, id)
}
}
func TestNodeID_recover(t *testing.T) {
prv := newkey()
hash := make([]byte, 32)
sig, err := crypto.Sign(hash, prv)
if err != nil {
t.Fatalf("signing error: %v", err)
}
pub := PubkeyID(&prv.PublicKey)
recpub, err := recoverNodeID(hash, sig)
if err != nil {
t.Fatalf("recovery error: %v", err)
}
if pub != recpub {
t.Errorf("recovered wrong pubkey:\ngot: %v\nwant: %v", recpub, pub)
}
ecdsa, err := pub.Pubkey()
if err != nil {
t.Errorf("Pubkey error: %v", err)
}
if !reflect.DeepEqual(ecdsa, &prv.PublicKey) {
t.Errorf("Pubkey mismatch:\n got: %#v\n want: %#v", ecdsa, &prv.PublicKey)
}
}
func TestNodeID_pubkeyBad(t *testing.T) {
ecdsa, err := NodeID{}.Pubkey()
if err == nil {
t.Error("expected error for zero ID")
}
if ecdsa != nil {
t.Error("expected nil result")
}
}
func TestNodeID_distcmp(t *testing.T) {
distcmpBig := func(target, a, b common.Hash) int {
tbig := new(big.Int).SetBytes(target[:])
abig := new(big.Int).SetBytes(a[:])
bbig := new(big.Int).SetBytes(b[:])
return new(big.Int).Xor(tbig, abig).Cmp(new(big.Int).Xor(tbig, bbig))
}
if err := quick.CheckEqual(distcmp, distcmpBig, quickcfg()); err != nil {
t.Error(err)
}
}
// the random tests is likely to miss the case where they're equal.
func TestNodeID_distcmpEqual(t *testing.T) {
base := common.Hash{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
x := common.Hash{15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0}
if distcmp(base, x, x) != 0 {
t.Errorf("distcmp(base, x, x) != 0")
}
}
func TestNodeID_logdist(t *testing.T) {
logdistBig := func(a, b common.Hash) int {
abig, bbig := new(big.Int).SetBytes(a[:]), new(big.Int).SetBytes(b[:])
return new(big.Int).Xor(abig, bbig).BitLen()
}
if err := quick.CheckEqual(logdist, logdistBig, quickcfg()); err != nil {
t.Error(err)
}
}
// the random tests is likely to miss the case where they're equal.
func TestNodeID_logdistEqual(t *testing.T) {
x := common.Hash{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
if logdist(x, x) != 0 {
t.Errorf("logdist(x, x) != 0")
}
}
func TestNodeID_hashAtDistance(t *testing.T) {
// we don't use quick.Check here because its output isn't
// very helpful when the test fails.
cfg := quickcfg()
for i := 0; i < cfg.MaxCount; i++ {
a := gen(common.Hash{}, cfg.Rand).(common.Hash)
dist := cfg.Rand.Intn(len(common.Hash{}) * 8)
result := hashAtDistance(a, dist)
actualdist := logdist(result, a)
if dist != actualdist {
t.Log("a: ", a)
t.Log("result:", result)
t.Fatalf("#%d: distance of result is %d, want %d", i, actualdist, dist)
}
}
}
func quickcfg() *quick.Config {
return &quick.Config{
MaxCount: 5000,
Rand: rand.New(rand.NewSource(time.Now().Unix())),
}
}
// TODO: The Generate method can be dropped when we require Go >= 1.5
// because testing/quick learned to generate arrays in 1.5.
func (NodeID) Generate(rand *rand.Rand, size int) reflect.Value {
var id NodeID
m := rand.Intn(len(id))
for i := len(id) - 1; i > m; i-- {
id[i] = byte(rand.Uint32())
}
return reflect.ValueOf(id)
}

224
p2p/discover/table.go
View file

@ -23,6 +23,7 @@
package discover package discover
import ( import (
"crypto/ecdsa"
crand "crypto/rand" crand "crypto/rand"
"encoding/binary" "encoding/binary"
"fmt" "fmt"
@ -35,6 +36,7 @@ import (
"github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/log" "github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/p2p/netutil" "github.com/ethereum/go-ethereum/p2p/netutil"
) )
@ -65,49 +67,44 @@ const (
type Table struct { type Table struct {
mutex sync.Mutex // protects buckets, bucket content, nursery, rand mutex sync.Mutex // protects buckets, bucket content, nursery, rand
buckets [nBuckets]*bucket // index of known nodes by distance buckets [nBuckets]*bucket // index of known nodes by distance
nursery []*Node // bootstrap nodes nursery []*node // bootstrap nodes
rand *mrand.Rand // source of randomness, periodically reseeded rand *mrand.Rand // source of randomness, periodically reseeded
ips netutil.DistinctNetSet ips netutil.DistinctNetSet
db *nodeDB // database of known nodes db *enode.DB // database of known nodes
refreshReq chan chan struct{} refreshReq chan chan struct{}
initDone chan struct{} initDone chan struct{}
closeReq chan struct{} closeReq chan struct{}
closed chan struct{} closed chan struct{}
nodeAddedHook func(*Node) // for testing nodeAddedHook func(*node) // for testing
net transport net transport
self *Node // metadata of the local node self *node // metadata of the local node
} }
// transport is implemented by the UDP transport. // transport is implemented by the UDP transport.
// it is an interface so we can test without opening lots of UDP // it is an interface so we can test without opening lots of UDP
// sockets and without generating a private key. // sockets and without generating a private key.
type transport interface { type transport interface {
ping(NodeID, *net.UDPAddr) error ping(enode.ID, *net.UDPAddr) error
findnode(toid NodeID, addr *net.UDPAddr, target NodeID) ([]*Node, error) findnode(toid enode.ID, addr *net.UDPAddr, target encPubkey) ([]*node, error)
close() close()
} }
// bucket contains nodes, ordered by their last activity. the entry // bucket contains nodes, ordered by their last activity. the entry
// that was most recently active is the first element in entries. // that was most recently active is the first element in entries.
type bucket struct { type bucket struct {
entries []*Node // live entries, sorted by time of last contact entries []*node // live entries, sorted by time of last contact
replacements []*Node // recently seen nodes to be used if revalidation fails replacements []*node // recently seen nodes to be used if revalidation fails
ips netutil.DistinctNetSet ips netutil.DistinctNetSet
} }
func newTable(t transport, ourID NodeID, ourAddr *net.UDPAddr, nodeDBPath string, bootnodes []*Node) (*Table, error) { func newTable(t transport, self *enode.Node, db *enode.DB, bootnodes []*enode.Node) (*Table, error) {
// If no node database was given, use an in-memory one
db, err := newNodeDB(nodeDBPath, nodeDBVersion, ourID)
if err != nil {
return nil, err
}
tab := &Table{ tab := &Table{
net: t, net: t,
db: db, db: db,
self: NewNode(ourID, ourAddr.IP, uint16(ourAddr.Port), uint16(ourAddr.Port)), self: wrapNode(self),
refreshReq: make(chan chan struct{}), refreshReq: make(chan chan struct{}),
initDone: make(chan struct{}), initDone: make(chan struct{}),
closeReq: make(chan struct{}), closeReq: make(chan struct{}),
@ -125,10 +122,7 @@ func newTable(t transport, ourID NodeID, ourAddr *net.UDPAddr, nodeDBPath string
} }
tab.seedRand() tab.seedRand()
tab.loadSeedNodes() tab.loadSeedNodes()
// Start the background expiration goroutine after loading seeds so that the search for
// seed nodes also considers older nodes that would otherwise be removed by the
// expiration.
tab.db.ensureExpirer()
go tab.loop() go tab.loop()
return tab, nil return tab, nil
} }
@ -143,15 +137,13 @@ func (tab *Table) seedRand() {
} }
// Self returns the local node. // Self returns the local node.
// The returned node should not be modified by the caller. func (tab *Table) Self() *enode.Node {
func (tab *Table) Self() *Node { return unwrapNode(tab.self)
return tab.self
} }
// ReadRandomNodes fills the given slice with random nodes from the // ReadRandomNodes fills the given slice with random nodes from the table. The results
// table. It will not write the same node more than once. The nodes in // are guaranteed to be unique for a single invocation, no node will appear twice.
// the slice are copies and can be modified by the caller. func (tab *Table) ReadRandomNodes(buf []*enode.Node) (n int) {
func (tab *Table) ReadRandomNodes(buf []*Node) (n int) {
if !tab.isInitDone() { if !tab.isInitDone() {
return 0 return 0
} }
@ -159,7 +151,7 @@ func (tab *Table) ReadRandomNodes(buf []*Node) (n int) {
defer tab.mutex.Unlock() defer tab.mutex.Unlock()
// Find all non-empty buckets and get a fresh slice of their entries. // Find all non-empty buckets and get a fresh slice of their entries.
var buckets [][]*Node var buckets [][]*node
for _, b := range &tab.buckets { for _, b := range &tab.buckets {
if len(b.entries) > 0 { if len(b.entries) > 0 {
buckets = append(buckets, b.entries) buckets = append(buckets, b.entries)
@ -177,7 +169,7 @@ func (tab *Table) ReadRandomNodes(buf []*Node) (n int) {
var i, j int var i, j int
for ; i < len(buf); i, j = i+1, (j+1)%len(buckets) { for ; i < len(buf); i, j = i+1, (j+1)%len(buckets) {
b := buckets[j] b := buckets[j]
buf[i] = &(*b[0]) buf[i] = unwrapNode(b[0])
buckets[j] = b[1:] buckets[j] = b[1:]
if len(b) == 1 { if len(b) == 1 {
buckets = append(buckets[:j], buckets[j+1:]...) buckets = append(buckets[:j], buckets[j+1:]...)
@ -202,20 +194,13 @@ func (tab *Table) Close() {
// setFallbackNodes sets the initial points of contact. These nodes // setFallbackNodes sets the initial points of contact. These nodes
// are used to connect to the network if the table is empty and there // are used to connect to the network if the table is empty and there
// are no known nodes in the database. // are no known nodes in the database.
func (tab *Table) setFallbackNodes(nodes []*Node) error { func (tab *Table) setFallbackNodes(nodes []*enode.Node) error {
for _, n := range nodes { for _, n := range nodes {
if err := n.validateComplete(); err != nil { if err := n.ValidateComplete(); err != nil {
return fmt.Errorf("bad bootstrap/fallback node %q (%v)", n, err) return fmt.Errorf("bad bootstrap node %q: %v", n, err)
} }
} }
tab.nursery = make([]*Node, 0, len(nodes)) tab.nursery = wrapNodes(nodes)
for _, n := range nodes {
cpy := *n
// Recompute cpy.sha because the node might not have been
// created by NewNode or ParseNode.
cpy.sha = crypto.Keccak256Hash(n.ID[:])
tab.nursery = append(tab.nursery, &cpy)
}
return nil return nil
} }
@ -231,47 +216,48 @@ func (tab *Table) isInitDone() bool {
// Resolve searches for a specific node with the given ID. // Resolve searches for a specific node with the given ID.
// It returns nil if the node could not be found. // It returns nil if the node could not be found.
func (tab *Table) Resolve(targetID NodeID) *Node { func (tab *Table) Resolve(n *enode.Node) *enode.Node {
// If the node is present in the local table, no // If the node is present in the local table, no
// network interaction is required. // network interaction is required.
hash := crypto.Keccak256Hash(targetID[:]) hash := n.ID()
tab.mutex.Lock() tab.mutex.Lock()
cl := tab.closest(hash, 1) cl := tab.closest(hash, 1)
tab.mutex.Unlock() tab.mutex.Unlock()
if len(cl.entries) > 0 && cl.entries[0].ID == targetID { if len(cl.entries) > 0 && cl.entries[0].ID() == hash {
return cl.entries[0] return unwrapNode(cl.entries[0])
} }
// Otherwise, do a network lookup. // Otherwise, do a network lookup.
result := tab.Lookup(targetID) result := tab.lookup(encodePubkey(n.Pubkey()), true)
for _, n := range result { for _, n := range result {
if n.ID == targetID { if n.ID() == hash {
return n return unwrapNode(n)
} }
} }
return nil return nil
} }
// Lookup performs a network search for nodes close // LookupRandom finds random nodes in the network.
// to the given target. It approaches the target by querying func (tab *Table) LookupRandom() []*enode.Node {
// nodes that are closer to it on each iteration. var target encPubkey
// The given target does not need to be an actual node crand.Read(target[:])
// identifier. return unwrapNodes(tab.lookup(target, true))
func (tab *Table) Lookup(targetID NodeID) []*Node {
return tab.lookup(targetID, true)
} }
func (tab *Table) lookup(targetID NodeID, refreshIfEmpty bool) []*Node { // lookup performs a network search for nodes close to the given target. It approaches the
// target by querying nodes that are closer to it on each iteration. The given target does
// not need to be an actual node identifier.
func (tab *Table) lookup(targetKey encPubkey, refreshIfEmpty bool) []*node {
var ( var (
target = crypto.Keccak256Hash(targetID[:]) target = enode.ID(crypto.Keccak256Hash(targetKey[:]))
asked = make(map[NodeID]bool) asked = make(map[enode.ID]bool)
seen = make(map[NodeID]bool) seen = make(map[enode.ID]bool)
reply = make(chan []*Node, alpha) reply = make(chan []*node, alpha)
pendingQueries = 0 pendingQueries = 0
result *nodesByDistance result *nodesByDistance
) )
// don't query further if we hit ourself. // don't query further if we hit ourself.
// unlikely to happen often in practice. // unlikely to happen often in practice.
asked[tab.self.ID] = true asked[tab.self.ID()] = true
for { for {
tab.mutex.Lock() tab.mutex.Lock()
@ -293,10 +279,10 @@ func (tab *Table) lookup(targetID NodeID, refreshIfEmpty bool) []*Node {
// ask the alpha closest nodes that we haven't asked yet // ask the alpha closest nodes that we haven't asked yet
for i := 0; i < len(result.entries) && pendingQueries < alpha; i++ { for i := 0; i < len(result.entries) && pendingQueries < alpha; i++ {
n := result.entries[i] n := result.entries[i]
if !asked[n.ID] { if !asked[n.ID()] {
asked[n.ID] = true asked[n.ID()] = true
pendingQueries++ pendingQueries++
go tab.findnode(n, targetID, reply) go tab.findnode(n, targetKey, reply)
} }
} }
if pendingQueries == 0 { if pendingQueries == 0 {
@ -305,8 +291,8 @@ func (tab *Table) lookup(targetID NodeID, refreshIfEmpty bool) []*Node {
} }
// wait for the next reply // wait for the next reply
for _, n := range <-reply { for _, n := range <-reply {
if n != nil && !seen[n.ID] { if n != nil && !seen[n.ID()] {
seen[n.ID] = true seen[n.ID()] = true
result.push(n, bucketSize) result.push(n, bucketSize)
} }
} }
@ -315,19 +301,19 @@ func (tab *Table) lookup(targetID NodeID, refreshIfEmpty bool) []*Node {
return result.entries return result.entries
} }
func (tab *Table) findnode(n *Node, targetID NodeID, reply chan<- []*Node) { func (tab *Table) findnode(n *node, targetKey encPubkey, reply chan<- []*node) {
fails := tab.db.findFails(n.ID) fails := tab.db.FindFails(n.ID())
r, err := tab.net.findnode(n.ID, n.addr(), targetID) r, err := tab.net.findnode(n.ID(), n.addr(), targetKey)
if err != nil || len(r) == 0 { if err != nil || len(r) == 0 {
fails++ fails++
tab.db.updateFindFails(n.ID, fails) tab.db.UpdateFindFails(n.ID(), fails)
log.Trace("Findnode failed", "id", n.ID, "failcount", fails, "err", err) log.Trace("Findnode failed", "id", n.ID(), "failcount", fails, "err", err)
if fails >= maxFindnodeFailures { if fails >= maxFindnodeFailures {
log.Trace("Too many findnode failures, dropping", "id", n.ID, "failcount", fails) log.Trace("Too many findnode failures, dropping", "id", n.ID(), "failcount", fails)
tab.delete(n) tab.delete(n)
} }
} else if fails > 0 { } else if fails > 0 {
tab.db.updateFindFails(n.ID, fails-1) tab.db.UpdateFindFails(n.ID(), fails-1)
} }
// Grab as many nodes as possible. Some of them might not be alive anymore, but we'll // Grab as many nodes as possible. Some of them might not be alive anymore, but we'll
@ -405,7 +391,6 @@ loop:
for _, ch := range waiting { for _, ch := range waiting {
close(ch) close(ch)
} }
tab.db.close()
close(tab.closed) close(tab.closed)
} }
@ -421,7 +406,11 @@ func (tab *Table) doRefresh(done chan struct{}) {
tab.loadSeedNodes() tab.loadSeedNodes()
// Run self lookup to discover new neighbor nodes. // Run self lookup to discover new neighbor nodes.
tab.lookup(tab.self.ID, false) // We can only do this if we have a secp256k1 identity.
var key ecdsa.PublicKey
if err := tab.self.Load((*enode.Secp256k1)(&key)); err == nil {
tab.lookup(encodePubkey(&key), false)
}
// The Kademlia paper specifies that the bucket refresh should // The Kademlia paper specifies that the bucket refresh should
// perform a lookup in the least recently used bucket. We cannot // perform a lookup in the least recently used bucket. We cannot
@ -430,19 +419,19 @@ func (tab *Table) doRefresh(done chan struct{}) {
// sha3 preimage that falls into a chosen bucket. // sha3 preimage that falls into a chosen bucket.
// We perform a few lookups with a random target instead. // We perform a few lookups with a random target instead.
for i := 0; i < 3; i++ { for i := 0; i < 3; i++ {
var target NodeID var target encPubkey
crand.Read(target[:]) crand.Read(target[:])
tab.lookup(target, false) tab.lookup(target, false)
} }
} }
func (tab *Table) loadSeedNodes() { func (tab *Table) loadSeedNodes() {
seeds := tab.db.querySeeds(seedCount, seedMaxAge) seeds := wrapNodes(tab.db.QuerySeeds(seedCount, seedMaxAge))
seeds = append(seeds, tab.nursery...) seeds = append(seeds, tab.nursery...)
for i := range seeds { for i := range seeds {
seed := seeds[i] seed := seeds[i]
age := log.Lazy{Fn: func() interface{} { return time.Since(tab.db.lastPongReceived(seed.ID)) }} age := log.Lazy{Fn: func() interface{} { return time.Since(tab.db.LastPongReceived(seed.ID())) }}
log.Debug("Found seed node in database", "id", seed.ID, "addr", seed.addr(), "age", age) log.Debug("Found seed node in database", "id", seed.ID(), "addr", seed.addr(), "age", age)
tab.add(seed) tab.add(seed)
} }
} }
@ -459,28 +448,28 @@ func (tab *Table) doRevalidate(done chan<- struct{}) {
} }
// Ping the selected node and wait for a pong. // Ping the selected node and wait for a pong.
err := tab.net.ping(last.ID, last.addr()) err := tab.net.ping(last.ID(), last.addr())
tab.mutex.Lock() tab.mutex.Lock()
defer tab.mutex.Unlock() defer tab.mutex.Unlock()
b := tab.buckets[bi] b := tab.buckets[bi]
if err == nil { if err == nil {
// The node responded, move it to the front. // The node responded, move it to the front.
log.Trace("Revalidated node", "b", bi, "id", last.ID) log.Debug("Revalidated node", "b", bi, "id", last.ID())
b.bump(last) b.bump(last)
return return
} }
// No reply received, pick a replacement or delete the node if there aren't // No reply received, pick a replacement or delete the node if there aren't
// any replacements. // any replacements.
if r := tab.replace(b, last); r != nil { if r := tab.replace(b, last); r != nil {
log.Trace("Replaced dead node", "b", bi, "id", last.ID, "ip", last.IP, "r", r.ID, "rip", r.IP) log.Debug("Replaced dead node", "b", bi, "id", last.ID(), "ip", last.IP(), "r", r.ID(), "rip", r.IP())
} else { } else {
log.Trace("Removed dead node", "b", bi, "id", last.ID, "ip", last.IP) log.Debug("Removed dead node", "b", bi, "id", last.ID(), "ip", last.IP())
} }
} }
// nodeToRevalidate returns the last node in a random, non-empty bucket. // nodeToRevalidate returns the last node in a random, non-empty bucket.
func (tab *Table) nodeToRevalidate() (n *Node, bi int) { func (tab *Table) nodeToRevalidate() (n *node, bi int) {
tab.mutex.Lock() tab.mutex.Lock()
defer tab.mutex.Unlock() defer tab.mutex.Unlock()
@ -511,7 +500,7 @@ func (tab *Table) copyLiveNodes() {
for _, b := range &tab.buckets { for _, b := range &tab.buckets {
for _, n := range b.entries { for _, n := range b.entries {
if now.Sub(n.addedAt) >= seedMinTableTime { if now.Sub(n.addedAt) >= seedMinTableTime {
tab.db.updateNode(n) tab.db.UpdateNode(unwrapNode(n))
} }
} }
} }
@ -519,7 +508,7 @@ func (tab *Table) copyLiveNodes() {
// closest returns the n nodes in the table that are closest to the // closest returns the n nodes in the table that are closest to the
// given id. The caller must hold tab.mutex. // given id. The caller must hold tab.mutex.
func (tab *Table) closest(target common.Hash, nresults int) *nodesByDistance { func (tab *Table) closest(target enode.ID, nresults int) *nodesByDistance {
// This is a very wasteful way to find the closest nodes but // This is a very wasteful way to find the closest nodes but
// obviously correct. I believe that tree-based buckets would make // obviously correct. I believe that tree-based buckets would make
// this easier to implement efficiently. // this easier to implement efficiently.
@ -540,8 +529,8 @@ func (tab *Table) len() (n int) {
} }
// bucket returns the bucket for the given node ID hash. // bucket returns the bucket for the given node ID hash.
func (tab *Table) bucket(sha common.Hash) *bucket { func (tab *Table) bucket(id enode.ID) *bucket {
d := logdist(tab.self.sha, sha) d := enode.LogDist(tab.self.ID(), id)
if d <= bucketMinDistance { if d <= bucketMinDistance {
return tab.buckets[0] return tab.buckets[0]
} }
@ -553,11 +542,14 @@ func (tab *Table) bucket(sha common.Hash) *bucket {
// least recently active node in the bucket does not respond to a ping packet. // least recently active node in the bucket does not respond to a ping packet.
// //
// The caller must not hold tab.mutex. // The caller must not hold tab.mutex.
func (tab *Table) add(n *Node) { func (tab *Table) add(n *node) {
if n.ID() == tab.self.ID() {
return
}
tab.mutex.Lock() tab.mutex.Lock()
defer tab.mutex.Unlock() defer tab.mutex.Unlock()
b := tab.bucket(n.ID())
b := tab.bucket(n.sha)
if !tab.bumpOrAdd(b, n) { if !tab.bumpOrAdd(b, n) {
// Node is not in table. Add it to the replacement list. // Node is not in table. Add it to the replacement list.
tab.addReplacement(b, n) tab.addReplacement(b, n)
@ -570,7 +562,7 @@ func (tab *Table) add(n *Node) {
// table could be filled by just sending ping repeatedly. // table could be filled by just sending ping repeatedly.
// //
// The caller must not hold tab.mutex. // The caller must not hold tab.mutex.
func (tab *Table) addThroughPing(n *Node) { func (tab *Table) addThroughPing(n *node) {
if !tab.isInitDone() { if !tab.isInitDone() {
return return
} }
@ -579,15 +571,15 @@ func (tab *Table) addThroughPing(n *Node) {
// stuff adds nodes the table to the end of their corresponding bucket // stuff adds nodes the table to the end of their corresponding bucket
// if the bucket is not full. The caller must not hold tab.mutex. // if the bucket is not full. The caller must not hold tab.mutex.
func (tab *Table) stuff(nodes []*Node) { func (tab *Table) stuff(nodes []*node) {
tab.mutex.Lock() tab.mutex.Lock()
defer tab.mutex.Unlock() defer tab.mutex.Unlock()
for _, n := range nodes { for _, n := range nodes {
if n.ID == tab.self.ID { if n.ID() == tab.self.ID() {
continue // don't add self continue // don't add self
} }
b := tab.bucket(n.sha) b := tab.bucket(n.ID())
if len(b.entries) < bucketSize { if len(b.entries) < bucketSize {
tab.bumpOrAdd(b, n) tab.bumpOrAdd(b, n)
} }
@ -595,11 +587,11 @@ func (tab *Table) stuff(nodes []*Node) {
} }
// delete removes an entry from the node table. It is used to evacuate dead nodes. // delete removes an entry from the node table. It is used to evacuate dead nodes.
func (tab *Table) delete(node *Node) { func (tab *Table) delete(node *node) {
tab.mutex.Lock() tab.mutex.Lock()
defer tab.mutex.Unlock() defer tab.mutex.Unlock()
tab.deleteInBucket(tab.bucket(node.sha), node) tab.deleteInBucket(tab.bucket(node.ID()), node)
} }
func (tab *Table) addIP(b *bucket, ip net.IP) bool { func (tab *Table) addIP(b *bucket, ip net.IP) bool {
@ -626,27 +618,27 @@ func (tab *Table) removeIP(b *bucket, ip net.IP) {
b.ips.Remove(ip) b.ips.Remove(ip)
} }
func (tab *Table) addReplacement(b *bucket, n *Node) { func (tab *Table) addReplacement(b *bucket, n *node) {
for _, e := range b.replacements { for _, e := range b.replacements {
if e.ID == n.ID { if e.ID() == n.ID() {
return // already in list return // already in list
} }
} }
if !tab.addIP(b, n.IP) { if !tab.addIP(b, n.IP()) {
return return
} }
var removed *Node var removed *node
b.replacements, removed = pushNode(b.replacements, n, maxReplacements) b.replacements, removed = pushNode(b.replacements, n, maxReplacements)
if removed != nil { if removed != nil {
tab.removeIP(b, removed.IP) tab.removeIP(b, removed.IP())
} }
} }
// replace removes n from the replacement list and replaces 'last' with it if it is the // replace removes n from the replacement list and replaces 'last' with it if it is the
// last entry in the bucket. If 'last' isn't the last entry, it has either been replaced // last entry in the bucket. If 'last' isn't the last entry, it has either been replaced
// with someone else or became active. // with someone else or became active.
func (tab *Table) replace(b *bucket, last *Node) *Node { func (tab *Table) replace(b *bucket, last *node) *node {
if len(b.entries) == 0 || b.entries[len(b.entries)-1].ID != last.ID { if len(b.entries) == 0 || b.entries[len(b.entries)-1].ID() != last.ID() {
// Entry has moved, don't replace it. // Entry has moved, don't replace it.
return nil return nil
} }
@ -658,15 +650,15 @@ func (tab *Table) replace(b *bucket, last *Node) *Node {
r := b.replacements[tab.rand.Intn(len(b.replacements))] r := b.replacements[tab.rand.Intn(len(b.replacements))]
b.replacements = deleteNode(b.replacements, r) b.replacements = deleteNode(b.replacements, r)
b.entries[len(b.entries)-1] = r b.entries[len(b.entries)-1] = r
tab.removeIP(b, last.IP) tab.removeIP(b, last.IP())
return r return r
} }
// bump moves the given node to the front of the bucket entry list // bump moves the given node to the front of the bucket entry list
// if it is contained in that list. // if it is contained in that list.
func (b *bucket) bump(n *Node) bool { func (b *bucket) bump(n *node) bool {
for i := range b.entries { for i := range b.entries {
if b.entries[i].ID == n.ID { if b.entries[i].ID() == n.ID() {
// move it to the front // move it to the front
copy(b.entries[1:], b.entries[:i]) copy(b.entries[1:], b.entries[:i])
b.entries[0] = n b.entries[0] = n
@ -678,11 +670,11 @@ func (b *bucket) bump(n *Node) bool {
// bumpOrAdd moves n to the front of the bucket entry list or adds it if the list isn't // bumpOrAdd moves n to the front of the bucket entry list or adds it if the list isn't
// full. The return value is true if n is in the bucket. // full. The return value is true if n is in the bucket.
func (tab *Table) bumpOrAdd(b *bucket, n *Node) bool { func (tab *Table) bumpOrAdd(b *bucket, n *node) bool {
if b.bump(n) { if b.bump(n) {
return true return true
} }
if len(b.entries) >= bucketSize || !tab.addIP(b, n.IP) { if len(b.entries) >= bucketSize || !tab.addIP(b, n.IP()) {
return false return false
} }
b.entries, _ = pushNode(b.entries, n, bucketSize) b.entries, _ = pushNode(b.entries, n, bucketSize)
@ -694,13 +686,13 @@ func (tab *Table) bumpOrAdd(b *bucket, n *Node) bool {
return true return true
} }
func (tab *Table) deleteInBucket(b *bucket, n *Node) { func (tab *Table) deleteInBucket(b *bucket, n *node) {
b.entries = deleteNode(b.entries, n) b.entries = deleteNode(b.entries, n)
tab.removeIP(b, n.IP) tab.removeIP(b, n.IP())
} }
// pushNode adds n to the front of list, keeping at most max items. // pushNode adds n to the front of list, keeping at most max items.
func pushNode(list []*Node, n *Node, max int) ([]*Node, *Node) { func pushNode(list []*node, n *node, max int) ([]*node, *node) {
if len(list) < max { if len(list) < max {
list = append(list, nil) list = append(list, nil)
} }
@ -711,9 +703,9 @@ func pushNode(list []*Node, n *Node, max int) ([]*Node, *Node) {
} }
// deleteNode removes n from list. // deleteNode removes n from list.
func deleteNode(list []*Node, n *Node) []*Node { func deleteNode(list []*node, n *node) []*node {
for i := range list { for i := range list {
if list[i].ID == n.ID { if list[i].ID() == n.ID() {
return append(list[:i], list[i+1:]...) return append(list[:i], list[i+1:]...)
} }
} }
@ -723,14 +715,14 @@ func deleteNode(list []*Node, n *Node) []*Node {
// nodesByDistance is a list of nodes, ordered by // nodesByDistance is a list of nodes, ordered by
// distance to target. // distance to target.
type nodesByDistance struct { type nodesByDistance struct {
entries []*Node entries []*node
target common.Hash target enode.ID
} }
// push adds the given node to the list, keeping the total size below maxElems. // push adds the given node to the list, keeping the total size below maxElems.
func (h *nodesByDistance) push(n *Node, maxElems int) { func (h *nodesByDistance) push(n *node, maxElems int) {
ix := sort.Search(len(h.entries), func(i int) bool { ix := sort.Search(len(h.entries), func(i int) bool {
return distcmp(h.target, h.entries[i].sha, n.sha) > 0 return enode.DistCmp(h.target, h.entries[i].ID(), n.ID()) > 0
}) })
if len(h.entries) < maxElems { if len(h.entries) < maxElems {
h.entries = append(h.entries, n) h.entries = append(h.entries, n)

558
p2p/discover/table_test.go
View file

@ -20,7 +20,6 @@ import (
"crypto/ecdsa" "crypto/ecdsa"
"fmt" "fmt"
"math/rand" "math/rand"
"sync"
"net" "net"
"reflect" "reflect"
@ -28,8 +27,9 @@ import (
"testing/quick" "testing/quick"
"time" "time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/p2p/enr"
) )
func TestTable_pingReplace(t *testing.T) { func TestTable_pingReplace(t *testing.T) {
@ -49,24 +49,26 @@ func TestTable_pingReplace(t *testing.T) {
func testPingReplace(t *testing.T, newNodeIsResponding, lastInBucketIsResponding bool) { func testPingReplace(t *testing.T, newNodeIsResponding, lastInBucketIsResponding bool) {
transport := newPingRecorder() transport := newPingRecorder()
tab, _ := newTable(transport, NodeID{}, &net.UDPAddr{}, "", nil) tab, db := newTestTable(transport)
defer tab.Close() defer tab.Close()
defer db.Close()
<-tab.initDone <-tab.initDone
// Fill up the sender's bucket. // Fill up the sender's bucket.
pingSender := NewNode(MustHexID("a502af0f59b2aab7746995408c79e9ca312d2793cc997e44fc55eda62f0150bbb8c59a6f9269ba3a081518b62699ee807c7c19c20125ddfccca872608af9e370"), net.IP{}, 99, 99) pingKey, _ := crypto.HexToECDSA("45a915e4d060149eb4365960e6a7a45f334393093061116b197e3240065ff2d8")
pingSender := wrapNode(enode.NewV4(&pingKey.PublicKey, net.IP{}, 99, 99))
last := fillBucket(tab, pingSender) last := fillBucket(tab, pingSender)
// Add the sender as if it just pinged us. Revalidate should replace the last node in // Add the sender as if it just pinged us. Revalidate should replace the last node in
// its bucket if it is unresponsive. Revalidate again to ensure that // its bucket if it is unresponsive. Revalidate again to ensure that
transport.dead[last.ID] = !lastInBucketIsResponding transport.dead[last.ID()] = !lastInBucketIsResponding
transport.dead[pingSender.ID] = !newNodeIsResponding transport.dead[pingSender.ID()] = !newNodeIsResponding
tab.add(pingSender) tab.add(pingSender)
tab.doRevalidate(make(chan struct{}, 1)) tab.doRevalidate(make(chan struct{}, 1))
tab.doRevalidate(make(chan struct{}, 1)) tab.doRevalidate(make(chan struct{}, 1))
if !transport.pinged[last.ID] { if !transport.pinged[last.ID()] {
// Oldest node in bucket is pinged to see whether it is still alive. // Oldest node in bucket is pinged to see whether it is still alive.
t.Error("table did not ping last node in bucket") t.Error("table did not ping last node in bucket")
} }
@ -77,14 +79,14 @@ func testPingReplace(t *testing.T, newNodeIsResponding, lastInBucketIsResponding
if !lastInBucketIsResponding && !newNodeIsResponding { if !lastInBucketIsResponding && !newNodeIsResponding {
wantSize-- wantSize--
} }
if l := len(tab.bucket(pingSender.sha).entries); l != wantSize { if l := len(tab.bucket(pingSender.ID()).entries); l != wantSize {
t.Errorf("wrong bucket size after add: got %d, want %d", l, wantSize) t.Errorf("wrong bucket size after bond: got %d, want %d", l, wantSize)
} }
if found := contains(tab.bucket(pingSender.sha).entries, last.ID); found != lastInBucketIsResponding { if found := contains(tab.bucket(pingSender.ID()).entries, last.ID()); found != lastInBucketIsResponding {
t.Errorf("last entry found: %t, want: %t", found, lastInBucketIsResponding) t.Errorf("last entry found: %t, want: %t", found, lastInBucketIsResponding)
} }
wantNewEntry := newNodeIsResponding && !lastInBucketIsResponding wantNewEntry := newNodeIsResponding && !lastInBucketIsResponding
if found := contains(tab.bucket(pingSender.sha).entries, pingSender.ID); found != wantNewEntry { if found := contains(tab.bucket(pingSender.ID()).entries, pingSender.ID()); found != wantNewEntry {
t.Errorf("new entry found: %t, want: %t", found, wantNewEntry) t.Errorf("new entry found: %t, want: %t", found, wantNewEntry)
} }
} }
@ -97,9 +99,9 @@ func TestBucket_bumpNoDuplicates(t *testing.T) {
Values: func(args []reflect.Value, rand *rand.Rand) { Values: func(args []reflect.Value, rand *rand.Rand) {
// generate a random list of nodes. this will be the content of the bucket. // generate a random list of nodes. this will be the content of the bucket.
n := rand.Intn(bucketSize-1) + 1 n := rand.Intn(bucketSize-1) + 1
nodes := make([]*Node, n) nodes := make([]*node, n)
for i := range nodes { for i := range nodes {
nodes[i] = nodeAtDistance(common.Hash{}, 200) nodes[i] = nodeAtDistance(enode.ID{}, 200, intIP(200))
} }
args[0] = reflect.ValueOf(nodes) args[0] = reflect.ValueOf(nodes)
// generate random bump positions. // generate random bump positions.
@ -111,8 +113,8 @@ func TestBucket_bumpNoDuplicates(t *testing.T) {
}, },
} }
prop := func(nodes []*Node, bumps []int) (ok bool) { prop := func(nodes []*node, bumps []int) (ok bool) {
b := &bucket{entries: make([]*Node, len(nodes))} b := &bucket{entries: make([]*node, len(nodes))}
copy(b.entries, nodes) copy(b.entries, nodes)
for i, pos := range bumps { for i, pos := range bumps {
b.bump(b.entries[pos]) b.bump(b.entries[pos])
@ -134,12 +136,12 @@ func TestBucket_bumpNoDuplicates(t *testing.T) {
// This checks that the table-wide IP limit is applied correctly. // This checks that the table-wide IP limit is applied correctly.
func TestTable_IPLimit(t *testing.T) { func TestTable_IPLimit(t *testing.T) {
transport := newPingRecorder() transport := newPingRecorder()
tab, _ := newTable(transport, NodeID{}, &net.UDPAddr{}, "", nil) tab, db := newTestTable(transport)
defer tab.Close() defer tab.Close()
defer db.Close()
for i := 0; i < tableIPLimit+1; i++ { for i := 0; i < tableIPLimit+1; i++ {
n := nodeAtDistance(tab.self.sha, i) n := nodeAtDistance(tab.self.ID(), i, net.IP{172, 0, 1, byte(i)})
n.IP = net.IP{172, 0, 1, byte(i)}
tab.add(n) tab.add(n)
} }
if tab.len() > tableIPLimit { if tab.len() > tableIPLimit {
@ -147,16 +149,16 @@ func TestTable_IPLimit(t *testing.T) {
} }
} }
// This checks that the table-wide IP limit is applied correctly. // This checks that the per-bucket IP limit is applied correctly.
func TestTable_BucketIPLimit(t *testing.T) { func TestTable_BucketIPLimit(t *testing.T) {
transport := newPingRecorder() transport := newPingRecorder()
tab, _ := newTable(transport, NodeID{}, &net.UDPAddr{}, "", nil) tab, db := newTestTable(transport)
defer tab.Close() defer tab.Close()
defer db.Close()
d := 3 d := 3
for i := 0; i < bucketIPLimit+1; i++ { for i := 0; i < bucketIPLimit+1; i++ {
n := nodeAtDistance(tab.self.sha, d) n := nodeAtDistance(tab.self.ID(), d, net.IP{172, 0, 1, byte(i)})
n.IP = net.IP{172, 0, 1, byte(i)}
tab.add(n) tab.add(n)
} }
if tab.len() > bucketIPLimit { if tab.len() > bucketIPLimit {
@ -164,69 +166,18 @@ func TestTable_BucketIPLimit(t *testing.T) {
} }
} }
// fillBucket inserts nodes into the given bucket until
// it is full. The node's IDs dont correspond to their
// hashes.
func fillBucket(tab *Table, n *Node) (last *Node) {
ld := logdist(tab.self.sha, n.sha)
b := tab.bucket(n.sha)
for len(b.entries) < bucketSize {
b.entries = append(b.entries, nodeAtDistance(tab.self.sha, ld))
}
return b.entries[bucketSize-1]
}
// nodeAtDistance creates a node for which logdist(base, n.sha) == ld.
// The node's ID does not correspond to n.sha.
func nodeAtDistance(base common.Hash, ld int) (n *Node) {
n = new(Node)
n.sha = hashAtDistance(base, ld)
n.IP = net.IP{byte(ld), 0, 2, byte(ld)}
copy(n.ID[:], n.sha[:]) // ensure the node still has a unique ID
return n
}
type pingRecorder struct {
mu sync.Mutex
dead, pinged map[NodeID]bool
}
func newPingRecorder() *pingRecorder {
return &pingRecorder{
dead: make(map[NodeID]bool),
pinged: make(map[NodeID]bool),
}
}
func (t *pingRecorder) findnode(toid NodeID, toaddr *net.UDPAddr, target NodeID) ([]*Node, error) {
return nil, nil
}
func (t *pingRecorder) ping(toid NodeID, toaddr *net.UDPAddr) error {
t.mu.Lock()
defer t.mu.Unlock()
t.pinged[toid] = true
if t.dead[toid] {
return errTimeout
} else {
return nil
}
}
func (t *pingRecorder) close() {}
func TestTable_closest(t *testing.T) { func TestTable_closest(t *testing.T) {
t.Parallel() t.Parallel()
test := func(test *closeTest) bool { test := func(test *closeTest) bool {
// for any node table, Target and N // for any node table, Target and N
transport := newPingRecorder() transport := newPingRecorder()
tab, _ := newTable(transport, test.Self, &net.UDPAddr{}, "", nil) tab, db := newTestTable(transport)
defer tab.Close() defer tab.Close()
defer db.Close()
tab.stuff(test.All) tab.stuff(test.All)
// check that doClosest(Target, N) returns nodes // check that closest(Target, N) returns nodes
result := tab.closest(test.Target, test.N).entries result := tab.closest(test.Target, test.N).entries
if hasDuplicates(result) { if hasDuplicates(result) {
t.Errorf("result contains duplicates") t.Errorf("result contains duplicates")
@ -252,15 +203,15 @@ func TestTable_closest(t *testing.T) {
// check that the result nodes have minimum distance to target. // check that the result nodes have minimum distance to target.
for _, b := range tab.buckets { for _, b := range tab.buckets {
for _, n := range b.entries { for _, n := range b.entries {
if contains(result, n.ID) { if contains(result, n.ID()) {
continue // don't run the check below for nodes in result continue // don't run the check below for nodes in result
} }
farthestResult := result[len(result)-1].sha farthestResult := result[len(result)-1].ID()
if distcmp(test.Target, n.sha, farthestResult) < 0 { if enode.DistCmp(test.Target, n.ID(), farthestResult) < 0 {
t.Errorf("table contains node that is closer to target but it's not in result") t.Errorf("table contains node that is closer to target but it's not in result")
t.Logf(" Target: %v", test.Target) t.Logf(" Target: %v", test.Target)
t.Logf(" Farthest Result: %v", farthestResult) t.Logf(" Farthest Result: %v", farthestResult)
t.Logf(" ID: %v", n.ID) t.Logf(" ID: %v", n.ID())
return false return false
} }
} }
@ -277,25 +228,26 @@ func TestTable_ReadRandomNodesGetAll(t *testing.T) {
MaxCount: 200, MaxCount: 200,
Rand: rand.New(rand.NewSource(time.Now().Unix())), Rand: rand.New(rand.NewSource(time.Now().Unix())),
Values: func(args []reflect.Value, rand *rand.Rand) { Values: func(args []reflect.Value, rand *rand.Rand) {
args[0] = reflect.ValueOf(make([]*Node, rand.Intn(1000))) args[0] = reflect.ValueOf(make([]*enode.Node, rand.Intn(1000)))
}, },
} }
test := func(buf []*Node) bool { test := func(buf []*enode.Node) bool {
transport := newPingRecorder() transport := newPingRecorder()
tab, _ := newTable(transport, NodeID{}, &net.UDPAddr{}, "", nil) tab, db := newTestTable(transport)
defer tab.Close() defer tab.Close()
defer db.Close()
<-tab.initDone <-tab.initDone
for i := 0; i < len(buf); i++ { for i := 0; i < len(buf); i++ {
ld := cfg.Rand.Intn(len(tab.buckets)) ld := cfg.Rand.Intn(len(tab.buckets))
tab.stuff([]*Node{nodeAtDistance(tab.self.sha, ld)}) tab.stuff([]*node{nodeAtDistance(tab.self.ID(), ld, intIP(ld))})
} }
gotN := tab.ReadRandomNodes(buf) gotN := tab.ReadRandomNodes(buf)
if gotN != tab.len() { if gotN != tab.len() {
t.Errorf("wrong number of nodes, got %d, want %d", gotN, tab.len()) t.Errorf("wrong number of nodes, got %d, want %d", gotN, tab.len())
return false return false
} }
if hasDuplicates(buf[:gotN]) { if hasDuplicates(wrapNodes(buf[:gotN])) {
t.Errorf("result contains duplicates") t.Errorf("result contains duplicates")
return false return false
} }
@ -307,41 +259,43 @@ func TestTable_ReadRandomNodesGetAll(t *testing.T) {
} }
type closeTest struct { type closeTest struct {
Self NodeID Self enode.ID
Target common.Hash Target enode.ID
All []*Node All []*node
N int N int
} }
func (*closeTest) Generate(rand *rand.Rand, size int) reflect.Value { func (*closeTest) Generate(rand *rand.Rand, size int) reflect.Value {
t := &closeTest{ t := &closeTest{
Self: gen(NodeID{}, rand).(NodeID), Self: gen(enode.ID{}, rand).(enode.ID),
Target: gen(common.Hash{}, rand).(common.Hash), Target: gen(enode.ID{}, rand).(enode.ID),
N: rand.Intn(bucketSize), N: rand.Intn(bucketSize),
} }
for _, id := range gen([]NodeID{}, rand).([]NodeID) { for _, id := range gen([]enode.ID{}, rand).([]enode.ID) {
t.All = append(t.All, &Node{ID: id}) n := enode.SignNull(new(enr.Record), id)
t.All = append(t.All, wrapNode(n))
} }
return reflect.ValueOf(t) return reflect.ValueOf(t)
} }
func TestTable_Lookup(t *testing.T) { func TestTable_Lookup(t *testing.T) {
self := nodeAtDistance(common.Hash{}, 0) tab, db := newTestTable(lookupTestnet)
tab, _ := newTable(lookupTestnet, self.ID, &net.UDPAddr{}, "", nil)
defer tab.Close() defer tab.Close()
defer db.Close()
// lookup on empty table returns no nodes // lookup on empty table returns no nodes
if results := tab.Lookup(lookupTestnet.target); len(results) > 0 { if results := tab.lookup(lookupTestnet.target, false); len(results) > 0 {
t.Fatalf("lookup on empty table returned %d results: %#v", len(results), results) t.Fatalf("lookup on empty table returned %d results: %#v", len(results), results)
} }
// seed table with initial node (otherwise lookup will terminate immediately) // seed table with initial node (otherwise lookup will terminate immediately)
seed := NewNode(lookupTestnet.dists[256][0], net.IP{}, 256, 0) seedKey, _ := decodePubkey(lookupTestnet.dists[256][0])
tab.stuff([]*Node{seed}) seed := wrapNode(enode.NewV4(seedKey, net.IP{}, 0, 256))
tab.stuff([]*node{seed})
results := tab.Lookup(lookupTestnet.target) results := tab.lookup(lookupTestnet.target, true)
t.Logf("results:") t.Logf("results:")
for _, e := range results { for _, e := range results {
t.Logf(" ld=%d, %x", logdist(lookupTestnet.targetSha, e.sha), e.sha[:]) t.Logf(" ld=%d, %x", enode.LogDist(lookupTestnet.targetSha, e.ID()), e.ID().Bytes())
} }
if len(results) != bucketSize { if len(results) != bucketSize {
t.Errorf("wrong number of results: got %d, want %d", len(results), bucketSize) t.Errorf("wrong number of results: got %d, want %d", len(results), bucketSize)
@ -358,235 +312,236 @@ func TestTable_Lookup(t *testing.T) {
// This is the test network for the Lookup test. // This is the test network for the Lookup test.
// The nodes were obtained by running testnet.mine with a random NodeID as target. // The nodes were obtained by running testnet.mine with a random NodeID as target.
var lookupTestnet = &preminedTestnet{ var lookupTestnet = &preminedTestnet{
target: MustHexID("166aea4f556532c6d34e8b740e5d314af7e9ac0ca79833bd751d6b665f12dfd38ec563c363b32f02aef4a80b44fd3def94612d497b99cb5f17fd24de454927ec"), target: hexEncPubkey("166aea4f556532c6d34e8b740e5d314af7e9ac0ca79833bd751d6b665f12dfd38ec563c363b32f02aef4a80b44fd3def94612d497b99cb5f17fd24de454927ec"),
targetSha: common.Hash{0x5c, 0x94, 0x4e, 0xe5, 0x1c, 0x5a, 0xe9, 0xf7, 0x2a, 0x95, 0xec, 0xcb, 0x8a, 0xed, 0x3, 0x74, 0xee, 0xcb, 0x51, 0x19, 0xd7, 0x20, 0xcb, 0xea, 0x68, 0x13, 0xe8, 0xe0, 0xd6, 0xad, 0x92, 0x61}, targetSha: enode.HexID("5c944ee51c5ae9f72a95eccb8aed0374eecb5119d720cbea6813e8e0d6ad9261"),
dists: [257][]NodeID{ dists: [257][]encPubkey{
240: { 240: {
MustHexID("2001ad5e3e80c71b952161bc0186731cf5ffe942d24a79230a0555802296238e57ea7a32f5b6f18564eadc1c65389448481f8c9338df0a3dbd18f708cbc2cbcb"), hexEncPubkey("2001ad5e3e80c71b952161bc0186731cf5ffe942d24a79230a0555802296238e57ea7a32f5b6f18564eadc1c65389448481f8c9338df0a3dbd18f708cbc2cbcb"),
MustHexID("6ba3f4f57d084b6bf94cc4555b8c657e4a8ac7b7baf23c6874efc21dd1e4f56b7eb2721e07f5242d2f1d8381fc8cae535e860197c69236798ba1ad231b105794"), hexEncPubkey("6ba3f4f57d084b6bf94cc4555b8c657e4a8ac7b7baf23c6874efc21dd1e4f56b7eb2721e07f5242d2f1d8381fc8cae535e860197c69236798ba1ad231b105794"),
}, },
244: { 244: {
MustHexID("696ba1f0a9d55c59246f776600542a9e6432490f0cd78f8bb55a196918df2081a9b521c3c3ba48e465a75c10768807717f8f689b0b4adce00e1c75737552a178"), hexEncPubkey("696ba1f0a9d55c59246f776600542a9e6432490f0cd78f8bb55a196918df2081a9b521c3c3ba48e465a75c10768807717f8f689b0b4adce00e1c75737552a178"),
}, },
246: { 246: {
MustHexID("d6d32178bdc38416f46ffb8b3ec9e4cb2cfff8d04dd7e4311a70e403cb62b10be1b447311b60b4f9ee221a8131fc2cbd45b96dd80deba68a949d467241facfa8"), hexEncPubkey("d6d32178bdc38416f46ffb8b3ec9e4cb2cfff8d04dd7e4311a70e403cb62b10be1b447311b60b4f9ee221a8131fc2cbd45b96dd80deba68a949d467241facfa8"),
MustHexID("3ea3d04a43a3dfb5ac11cffc2319248cf41b6279659393c2f55b8a0a5fc9d12581a9d97ef5d8ff9b5abf3321a290e8f63a4f785f450dc8a672aba3ba2ff4fdab"), hexEncPubkey("3ea3d04a43a3dfb5ac11cffc2319248cf41b6279659393c2f55b8a0a5fc9d12581a9d97ef5d8ff9b5abf3321a290e8f63a4f785f450dc8a672aba3ba2ff4fdab"),
MustHexID("2fc897f05ae585553e5c014effd3078f84f37f9333afacffb109f00ca8e7a3373de810a3946be971cbccdfd40249f9fe7f322118ea459ac71acca85a1ef8b7f4"), hexEncPubkey("2fc897f05ae585553e5c014effd3078f84f37f9333afacffb109f00ca8e7a3373de810a3946be971cbccdfd40249f9fe7f322118ea459ac71acca85a1ef8b7f4"),
}, },
247: { 247: {
MustHexID("3155e1427f85f10a5c9a7755877748041af1bcd8d474ec065eb33df57a97babf54bfd2103575fa829115d224c523596b401065a97f74010610fce76382c0bf32"), hexEncPubkey("3155e1427f85f10a5c9a7755877748041af1bcd8d474ec065eb33df57a97babf54bfd2103575fa829115d224c523596b401065a97f74010610fce76382c0bf32"),
MustHexID("312c55512422cf9b8a4097e9a6ad79402e87a15ae909a4bfefa22398f03d20951933beea1e4dfa6f968212385e829f04c2d314fc2d4e255e0d3bc08792b069db"), hexEncPubkey("312c55512422cf9b8a4097e9a6ad79402e87a15ae909a4bfefa22398f03d20951933beea1e4dfa6f968212385e829f04c2d314fc2d4e255e0d3bc08792b069db"),
MustHexID("38643200b172dcfef857492156971f0e6aa2c538d8b74010f8e140811d53b98c765dd2d96126051913f44582e8c199ad7c6d6819e9a56483f637feaac9448aac"), hexEncPubkey("38643200b172dcfef857492156971f0e6aa2c538d8b74010f8e140811d53b98c765dd2d96126051913f44582e8c199ad7c6d6819e9a56483f637feaac9448aac"),
MustHexID("8dcab8618c3253b558d459da53bd8fa68935a719aff8b811197101a4b2b47dd2d47295286fc00cc081bb542d760717d1bdd6bec2c37cd72eca367d6dd3b9df73"), hexEncPubkey("8dcab8618c3253b558d459da53bd8fa68935a719aff8b811197101a4b2b47dd2d47295286fc00cc081bb542d760717d1bdd6bec2c37cd72eca367d6dd3b9df73"),
MustHexID("8b58c6073dd98bbad4e310b97186c8f822d3a5c7d57af40e2136e88e315afd115edb27d2d0685a908cfe5aa49d0debdda6e6e63972691d6bd8c5af2d771dd2a9"), hexEncPubkey("8b58c6073dd98bbad4e310b97186c8f822d3a5c7d57af40e2136e88e315afd115edb27d2d0685a908cfe5aa49d0debdda6e6e63972691d6bd8c5af2d771dd2a9"),
MustHexID("2cbb718b7dc682da19652e7d9eb4fefaf7b7147d82c1c2b6805edf77b85e29fde9f6da195741467ff2638dc62c8d3e014ea5686693c15ed0080b6de90354c137"), hexEncPubkey("2cbb718b7dc682da19652e7d9eb4fefaf7b7147d82c1c2b6805edf77b85e29fde9f6da195741467ff2638dc62c8d3e014ea5686693c15ed0080b6de90354c137"),
MustHexID("e84027696d3f12f2de30a9311afea8fbd313c2360daff52bb5fc8c7094d5295758bec3134e4eef24e4cdf377b40da344993284628a7a346eba94f74160998feb"), hexEncPubkey("e84027696d3f12f2de30a9311afea8fbd313c2360daff52bb5fc8c7094d5295758bec3134e4eef24e4cdf377b40da344993284628a7a346eba94f74160998feb"),
MustHexID("f1357a4f04f9d33753a57c0b65ba20a5d8777abbffd04e906014491c9103fb08590e45548d37aa4bd70965e2e81ddba94f31860348df01469eec8c1829200a68"), hexEncPubkey("f1357a4f04f9d33753a57c0b65ba20a5d8777abbffd04e906014491c9103fb08590e45548d37aa4bd70965e2e81ddba94f31860348df01469eec8c1829200a68"),
MustHexID("4ab0a75941b12892369b4490a1928c8ca52a9ad6d3dffbd1d8c0b907bc200fe74c022d011ec39b64808a39c0ca41f1d3254386c3e7733e7044c44259486461b6"), hexEncPubkey("4ab0a75941b12892369b4490a1928c8ca52a9ad6d3dffbd1d8c0b907bc200fe74c022d011ec39b64808a39c0ca41f1d3254386c3e7733e7044c44259486461b6"),
MustHexID("d45150a72dc74388773e68e03133a3b5f51447fe91837d566706b3c035ee4b56f160c878c6273394daee7f56cc398985269052f22f75a8057df2fe6172765354"), hexEncPubkey("d45150a72dc74388773e68e03133a3b5f51447fe91837d566706b3c035ee4b56f160c878c6273394daee7f56cc398985269052f22f75a8057df2fe6172765354"),
}, },
248: { 248: {
MustHexID("6aadfce366a189bab08ac84721567483202c86590642ea6d6a14f37ca78d82bdb6509eb7b8b2f6f63c78ae3ae1d8837c89509e41497d719b23ad53dd81574afa"), hexEncPubkey("6aadfce366a189bab08ac84721567483202c86590642ea6d6a14f37ca78d82bdb6509eb7b8b2f6f63c78ae3ae1d8837c89509e41497d719b23ad53dd81574afa"),
MustHexID("a605ecfd6069a4cf4cf7f5840e5bc0ce10d23a3ac59e2aaa70c6afd5637359d2519b4524f56fc2ca180cdbebe54262f720ccaae8c1b28fd553c485675831624d"), hexEncPubkey("a605ecfd6069a4cf4cf7f5840e5bc0ce10d23a3ac59e2aaa70c6afd5637359d2519b4524f56fc2ca180cdbebe54262f720ccaae8c1b28fd553c485675831624d"),
MustHexID("29701451cb9448ca33fc33680b44b840d815be90146eb521641efbffed0859c154e8892d3906eae9934bfacee72cd1d2fa9dd050fd18888eea49da155ab0efd2"), hexEncPubkey("29701451cb9448ca33fc33680b44b840d815be90146eb521641efbffed0859c154e8892d3906eae9934bfacee72cd1d2fa9dd050fd18888eea49da155ab0efd2"),
MustHexID("3ed426322dee7572b08592e1e079f8b6c6b30e10e6243edd144a6a48fdbdb83df73a6e41b1143722cb82604f2203a32758610b5d9544f44a1a7921ba001528c1"), hexEncPubkey("3ed426322dee7572b08592e1e079f8b6c6b30e10e6243edd144a6a48fdbdb83df73a6e41b1143722cb82604f2203a32758610b5d9544f44a1a7921ba001528c1"),
MustHexID("b2e2a2b7fdd363572a3256e75435fab1da3b16f7891a8bd2015f30995dae665d7eabfd194d87d99d5df628b4bbc7b04e5b492c596422dd8272746c7a1b0b8e4f"), hexEncPubkey("b2e2a2b7fdd363572a3256e75435fab1da3b16f7891a8bd2015f30995dae665d7eabfd194d87d99d5df628b4bbc7b04e5b492c596422dd8272746c7a1b0b8e4f"),
MustHexID("0c69c9756162c593e85615b814ce57a2a8ca2df6c690b9c4e4602731b61e1531a3bbe3f7114271554427ffabea80ad8f36fa95a49fa77b675ae182c6ccac1728"), hexEncPubkey("0c69c9756162c593e85615b814ce57a2a8ca2df6c690b9c4e4602731b61e1531a3bbe3f7114271554427ffabea80ad8f36fa95a49fa77b675ae182c6ccac1728"),
MustHexID("8d28be21d5a97b0876442fa4f5e5387f5bf3faad0b6f13b8607b64d6e448c0991ca28dd7fe2f64eb8eadd7150bff5d5666aa6ed868b84c71311f4ba9a38569dd"), hexEncPubkey("8d28be21d5a97b0876442fa4f5e5387f5bf3faad0b6f13b8607b64d6e448c0991ca28dd7fe2f64eb8eadd7150bff5d5666aa6ed868b84c71311f4ba9a38569dd"),
MustHexID("2c677e1c64b9c9df6359348a7f5f33dc79e22f0177042486d125f8b6ca7f0dc756b1f672aceee5f1746bcff80aaf6f92a8dc0c9fbeb259b3fa0da060de5ab7e8"), hexEncPubkey("2c677e1c64b9c9df6359348a7f5f33dc79e22f0177042486d125f8b6ca7f0dc756b1f672aceee5f1746bcff80aaf6f92a8dc0c9fbeb259b3fa0da060de5ab7e8"),
MustHexID("3994880f94a8678f0cd247a43f474a8af375d2a072128da1ad6cae84a244105ff85e94fc7d8496f639468de7ee998908a91c7e33ef7585fff92e984b210941a1"), hexEncPubkey("3994880f94a8678f0cd247a43f474a8af375d2a072128da1ad6cae84a244105ff85e94fc7d8496f639468de7ee998908a91c7e33ef7585fff92e984b210941a1"),
MustHexID("b45a9153c08d002a48090d15d61a7c7dad8c2af85d4ff5bd36ce23a9a11e0709bf8d56614c7b193bc028c16cbf7f20dfbcc751328b64a924995d47b41e452422"), hexEncPubkey("b45a9153c08d002a48090d15d61a7c7dad8c2af85d4ff5bd36ce23a9a11e0709bf8d56614c7b193bc028c16cbf7f20dfbcc751328b64a924995d47b41e452422"),
MustHexID("057ab3a9e53c7a84b0f3fc586117a525cdd18e313f52a67bf31798d48078e325abe5cfee3f6c2533230cb37d0549289d692a29dd400e899b8552d4b928f6f907"), hexEncPubkey("057ab3a9e53c7a84b0f3fc586117a525cdd18e313f52a67bf31798d48078e325abe5cfee3f6c2533230cb37d0549289d692a29dd400e899b8552d4b928f6f907"),
MustHexID("0ddf663d308791eb92e6bd88a2f8cb45e4f4f35bb16708a0e6ff7f1362aa6a73fedd0a1b1557fb3365e38e1b79d6918e2fae2788728b70c9ab6b51a3b94a4338"), hexEncPubkey("0ddf663d308791eb92e6bd88a2f8cb45e4f4f35bb16708a0e6ff7f1362aa6a73fedd0a1b1557fb3365e38e1b79d6918e2fae2788728b70c9ab6b51a3b94a4338"),
MustHexID("f637e07ff50cc1e3731735841c4798411059f2023abcf3885674f3e8032531b0edca50fd715df6feb489b6177c345374d64f4b07d257a7745de393a107b013a5"), hexEncPubkey("f637e07ff50cc1e3731735841c4798411059f2023abcf3885674f3e8032531b0edca50fd715df6feb489b6177c345374d64f4b07d257a7745de393a107b013a5"),
MustHexID("e24ec7c6eec094f63c7b3239f56d311ec5a3e45bc4e622a1095a65b95eea6fe13e29f3b6b7a2cbfe40906e3989f17ac834c3102dd0cadaaa26e16ee06d782b72"), hexEncPubkey("e24ec7c6eec094f63c7b3239f56d311ec5a3e45bc4e622a1095a65b95eea6fe13e29f3b6b7a2cbfe40906e3989f17ac834c3102dd0cadaaa26e16ee06d782b72"),
MustHexID("b76ea1a6fd6506ef6e3506a4f1f60ed6287fff8114af6141b2ff13e61242331b54082b023cfea5b3083354a4fb3f9eb8be01fb4a518f579e731a5d0707291a6b"), hexEncPubkey("b76ea1a6fd6506ef6e3506a4f1f60ed6287fff8114af6141b2ff13e61242331b54082b023cfea5b3083354a4fb3f9eb8be01fb4a518f579e731a5d0707291a6b"),
MustHexID("9b53a37950ca8890ee349b325032d7b672cab7eced178d3060137b24ef6b92a43977922d5bdfb4a3409a2d80128e02f795f9dae6d7d99973ad0e23a2afb8442f"), hexEncPubkey("9b53a37950ca8890ee349b325032d7b672cab7eced178d3060137b24ef6b92a43977922d5bdfb4a3409a2d80128e02f795f9dae6d7d99973ad0e23a2afb8442f"),
}, },
249: { 249: {
MustHexID("675ae65567c3c72c50c73bc0fd4f61f202ea5f93346ca57b551de3411ccc614fad61cb9035493af47615311b9d44ee7a161972ee4d77c28fe1ec029d01434e6a"), hexEncPubkey("675ae65567c3c72c50c73bc0fd4f61f202ea5f93346ca57b551de3411ccc614fad61cb9035493af47615311b9d44ee7a161972ee4d77c28fe1ec029d01434e6a"),
MustHexID("8eb81408389da88536ae5800392b16ef5109d7ea132c18e9a82928047ecdb502693f6e4a4cdd18b54296caf561db937185731456c456c98bfe7de0baf0eaa495"), hexEncPubkey("8eb81408389da88536ae5800392b16ef5109d7ea132c18e9a82928047ecdb502693f6e4a4cdd18b54296caf561db937185731456c456c98bfe7de0baf0eaa495"),
MustHexID("2adba8b1612a541771cb93a726a38a4b88e97b18eced2593eb7daf82f05a5321ca94a72cc780c306ff21e551a932fc2c6d791e4681907b5ceab7f084c3fa2944"), hexEncPubkey("2adba8b1612a541771cb93a726a38a4b88e97b18eced2593eb7daf82f05a5321ca94a72cc780c306ff21e551a932fc2c6d791e4681907b5ceab7f084c3fa2944"),
MustHexID("b1b4bfbda514d9b8f35b1c28961da5d5216fe50548f4066f69af3b7666a3b2e06eac646735e963e5c8f8138a2fb95af15b13b23ff00c6986eccc0efaa8ee6fb4"), hexEncPubkey("b1b4bfbda514d9b8f35b1c28961da5d5216fe50548f4066f69af3b7666a3b2e06eac646735e963e5c8f8138a2fb95af15b13b23ff00c6986eccc0efaa8ee6fb4"),
MustHexID("d2139281b289ad0e4d7b4243c4364f5c51aac8b60f4806135de06b12b5b369c9e43a6eb494eab860d115c15c6fbb8c5a1b0e382972e0e460af395b8385363de7"), hexEncPubkey("d2139281b289ad0e4d7b4243c4364f5c51aac8b60f4806135de06b12b5b369c9e43a6eb494eab860d115c15c6fbb8c5a1b0e382972e0e460af395b8385363de7"),
MustHexID("4a693df4b8fc5bdc7cec342c3ed2e228d7c5b4ab7321ddaa6cccbeb45b05a9f1d95766b4002e6d4791c2deacb8a667aadea6a700da28a3eea810a30395701bbc"), hexEncPubkey("4a693df4b8fc5bdc7cec342c3ed2e228d7c5b4ab7321ddaa6cccbeb45b05a9f1d95766b4002e6d4791c2deacb8a667aadea6a700da28a3eea810a30395701bbc"),
MustHexID("ab41611195ec3c62bb8cd762ee19fb182d194fd141f4a66780efbef4b07ce916246c022b841237a3a6b512a93431157edd221e854ed2a259b72e9c5351f44d0c"), hexEncPubkey("ab41611195ec3c62bb8cd762ee19fb182d194fd141f4a66780efbef4b07ce916246c022b841237a3a6b512a93431157edd221e854ed2a259b72e9c5351f44d0c"),
MustHexID("68e8e26099030d10c3c703ae7045c0a48061fb88058d853b3e67880014c449d4311014da99d617d3150a20f1a3da5e34bf0f14f1c51fe4dd9d58afd222823176"), hexEncPubkey("68e8e26099030d10c3c703ae7045c0a48061fb88058d853b3e67880014c449d4311014da99d617d3150a20f1a3da5e34bf0f14f1c51fe4dd9d58afd222823176"),
MustHexID("3fbcacf546fb129cd70fc48de3b593ba99d3c473798bc309292aca280320e0eacc04442c914cad5c4cf6950345ba79b0d51302df88285d4e83ee3fe41339eee7"), hexEncPubkey("3fbcacf546fb129cd70fc48de3b593ba99d3c473798bc309292aca280320e0eacc04442c914cad5c4cf6950345ba79b0d51302df88285d4e83ee3fe41339eee7"),
MustHexID("1d4a623659f7c8f80b6c3939596afdf42e78f892f682c768ad36eb7bfba402dbf97aea3a268f3badd8fe7636be216edf3d67ee1e08789ebbc7be625056bd7109"), hexEncPubkey("1d4a623659f7c8f80b6c3939596afdf42e78f892f682c768ad36eb7bfba402dbf97aea3a268f3badd8fe7636be216edf3d67ee1e08789ebbc7be625056bd7109"),
MustHexID("a283c474ab09da02bbc96b16317241d0627646fcc427d1fe790b76a7bf1989ced90f92101a973047ae9940c92720dffbac8eff21df8cae468a50f72f9e159417"), hexEncPubkey("a283c474ab09da02bbc96b16317241d0627646fcc427d1fe790b76a7bf1989ced90f92101a973047ae9940c92720dffbac8eff21df8cae468a50f72f9e159417"),
MustHexID("dbf7e5ad7f87c3dfecae65d87c3039e14ed0bdc56caf00ce81931073e2e16719d746295512ff7937a15c3b03603e7c41a4f9df94fcd37bb200dd8f332767e9cb"), hexEncPubkey("dbf7e5ad7f87c3dfecae65d87c3039e14ed0bdc56caf00ce81931073e2e16719d746295512ff7937a15c3b03603e7c41a4f9df94fcd37bb200dd8f332767e9cb"),
MustHexID("caaa070a26692f64fc77f30d7b5ae980d419b4393a0f442b1c821ef58c0862898b0d22f74a4f8c5d83069493e3ec0b92f17dc1fe6e4cd437c1ec25039e7ce839"), hexEncPubkey("caaa070a26692f64fc77f30d7b5ae980d419b4393a0f442b1c821ef58c0862898b0d22f74a4f8c5d83069493e3ec0b92f17dc1fe6e4cd437c1ec25039e7ce839"),
MustHexID("874cc8d1213beb65c4e0e1de38ef5d8165235893ac74ab5ea937c885eaab25c8d79dad0456e9fd3e9450626cac7e107b004478fb59842f067857f39a47cee695"), hexEncPubkey("874cc8d1213beb65c4e0e1de38ef5d8165235893ac74ab5ea937c885eaab25c8d79dad0456e9fd3e9450626cac7e107b004478fb59842f067857f39a47cee695"),
MustHexID("d94193f236105010972f5df1b7818b55846592a0445b9cdc4eaed811b8c4c0f7c27dc8cc9837a4774656d6b34682d6d329d42b6ebb55da1d475c2474dc3dfdf4"), hexEncPubkey("d94193f236105010972f5df1b7818b55846592a0445b9cdc4eaed811b8c4c0f7c27dc8cc9837a4774656d6b34682d6d329d42b6ebb55da1d475c2474dc3dfdf4"),
MustHexID("edd9af6aded4094e9785637c28fccbd3980cbe28e2eb9a411048a23c2ace4bd6b0b7088a7817997b49a3dd05fc6929ca6c7abbb69438dbdabe65e971d2a794b2"), hexEncPubkey("edd9af6aded4094e9785637c28fccbd3980cbe28e2eb9a411048a23c2ace4bd6b0b7088a7817997b49a3dd05fc6929ca6c7abbb69438dbdabe65e971d2a794b2"),
}, },
250: { 250: {
MustHexID("53a5bd1215d4ab709ae8fdc2ced50bba320bced78bd9c5dc92947fb402250c914891786db0978c898c058493f86fc68b1c5de8a5cb36336150ac7a88655b6c39"), hexEncPubkey("53a5bd1215d4ab709ae8fdc2ced50bba320bced78bd9c5dc92947fb402250c914891786db0978c898c058493f86fc68b1c5de8a5cb36336150ac7a88655b6c39"),
MustHexID("b7f79e3ab59f79262623c9ccefc8f01d682323aee56ffbe295437487e9d5acaf556a9c92e1f1c6a9601f2b9eb6b027ae1aeaebac71d61b9b78e88676efd3e1a3"), hexEncPubkey("b7f79e3ab59f79262623c9ccefc8f01d682323aee56ffbe295437487e9d5acaf556a9c92e1f1c6a9601f2b9eb6b027ae1aeaebac71d61b9b78e88676efd3e1a3"),
MustHexID("d374bf7e8d7ffff69cc00bebff38ef5bc1dcb0a8d51c1a3d70e61ac6b2e2d6617109254b0ac224354dfbf79009fe4239e09020c483cc60c071e00b9238684f30"), hexEncPubkey("d374bf7e8d7ffff69cc00bebff38ef5bc1dcb0a8d51c1a3d70e61ac6b2e2d6617109254b0ac224354dfbf79009fe4239e09020c483cc60c071e00b9238684f30"),
MustHexID("1e1eac1c9add703eb252eb991594f8f5a173255d526a855fab24ae57dc277e055bc3c7a7ae0b45d437c4f47a72d97eb7b126f2ba344ba6c0e14b2c6f27d4b1e6"), hexEncPubkey("1e1eac1c9add703eb252eb991594f8f5a173255d526a855fab24ae57dc277e055bc3c7a7ae0b45d437c4f47a72d97eb7b126f2ba344ba6c0e14b2c6f27d4b1e6"),
MustHexID("ae28953f63d4bc4e706712a59319c111f5ff8f312584f65d7436b4cd3d14b217b958f8486bad666b4481fe879019fb1f767cf15b3e3e2711efc33b56d460448a"), hexEncPubkey("ae28953f63d4bc4e706712a59319c111f5ff8f312584f65d7436b4cd3d14b217b958f8486bad666b4481fe879019fb1f767cf15b3e3e2711efc33b56d460448a"),
MustHexID("934bb1edf9c7a318b82306aca67feb3d6b434421fa275d694f0b4927afd8b1d3935b727fd4ff6e3d012e0c82f1824385174e8c6450ade59c2a43281a4b3446b6"), hexEncPubkey("934bb1edf9c7a318b82306aca67feb3d6b434421fa275d694f0b4927afd8b1d3935b727fd4ff6e3d012e0c82f1824385174e8c6450ade59c2a43281a4b3446b6"),
MustHexID("9eef3f28f70ce19637519a0916555bf76d26de31312ac656cf9d3e379899ea44e4dd7ffcce923b4f3563f8a00489a34bd6936db0cbb4c959d32c49f017e07d05"), hexEncPubkey("9eef3f28f70ce19637519a0916555bf76d26de31312ac656cf9d3e379899ea44e4dd7ffcce923b4f3563f8a00489a34bd6936db0cbb4c959d32c49f017e07d05"),
MustHexID("82200872e8f871c48f1fad13daec6478298099b591bb3dbc4ef6890aa28ebee5860d07d70be62f4c0af85085a90ae8179ee8f937cf37915c67ea73e704b03ee7"), hexEncPubkey("82200872e8f871c48f1fad13daec6478298099b591bb3dbc4ef6890aa28ebee5860d07d70be62f4c0af85085a90ae8179ee8f937cf37915c67ea73e704b03ee7"),
MustHexID("6c75a5834a08476b7fc37ff3dc2011dc3ea3b36524bad7a6d319b18878fad813c0ba76d1f4555cacd3890c865438c21f0e0aed1f80e0a157e642124c69f43a11"), hexEncPubkey("6c75a5834a08476b7fc37ff3dc2011dc3ea3b36524bad7a6d319b18878fad813c0ba76d1f4555cacd3890c865438c21f0e0aed1f80e0a157e642124c69f43a11"),
MustHexID("995b873742206cb02b736e73a88580c2aacb0bd4a3c97a647b647bcab3f5e03c0e0736520a8b3600da09edf4248991fb01091ec7ff3ec7cdc8a1beae011e7aae"), hexEncPubkey("995b873742206cb02b736e73a88580c2aacb0bd4a3c97a647b647bcab3f5e03c0e0736520a8b3600da09edf4248991fb01091ec7ff3ec7cdc8a1beae011e7aae"),
MustHexID("c773a056594b5cdef2e850d30891ff0e927c3b1b9c35cd8e8d53a1017001e237468e1ece3ae33d612ca3e6abb0a9169aa352e9dcda358e5af2ad982b577447db"), hexEncPubkey("c773a056594b5cdef2e850d30891ff0e927c3b1b9c35cd8e8d53a1017001e237468e1ece3ae33d612ca3e6abb0a9169aa352e9dcda358e5af2ad982b577447db"),
MustHexID("2b46a5f6923f475c6be99ec6d134437a6d11f6bb4b4ac6bcd94572fa1092639d1c08aeefcb51f0912f0a060f71d4f38ee4da70ecc16010b05dd4a674aab14c3a"), hexEncPubkey("2b46a5f6923f475c6be99ec6d134437a6d11f6bb4b4ac6bcd94572fa1092639d1c08aeefcb51f0912f0a060f71d4f38ee4da70ecc16010b05dd4a674aab14c3a"),
MustHexID("af6ab501366debbaa0d22e20e9688f32ef6b3b644440580fd78de4fe0e99e2a16eb5636bbae0d1c259df8ddda77b35b9a35cbc36137473e9c68fbc9d203ba842"), hexEncPubkey("af6ab501366debbaa0d22e20e9688f32ef6b3b644440580fd78de4fe0e99e2a16eb5636bbae0d1c259df8ddda77b35b9a35cbc36137473e9c68fbc9d203ba842"),
MustHexID("c9f6f2dd1a941926f03f770695bda289859e85fabaf94baaae20b93e5015dc014ba41150176a36a1884adb52f405194693e63b0c464a6891cc9cc1c80d450326"), hexEncPubkey("c9f6f2dd1a941926f03f770695bda289859e85fabaf94baaae20b93e5015dc014ba41150176a36a1884adb52f405194693e63b0c464a6891cc9cc1c80d450326"),
MustHexID("5b116f0751526868a909b61a30b0c5282c37df6925cc03ddea556ef0d0602a9595fd6c14d371f8ed7d45d89918a032dcd22be4342a8793d88fdbeb3ca3d75bd7"), hexEncPubkey("5b116f0751526868a909b61a30b0c5282c37df6925cc03ddea556ef0d0602a9595fd6c14d371f8ed7d45d89918a032dcd22be4342a8793d88fdbeb3ca3d75bd7"),
MustHexID("50f3222fb6b82481c7c813b2172e1daea43e2710a443b9c2a57a12bd160dd37e20f87aa968c82ad639af6972185609d47036c0d93b4b7269b74ebd7073221c10"), hexEncPubkey("50f3222fb6b82481c7c813b2172e1daea43e2710a443b9c2a57a12bd160dd37e20f87aa968c82ad639af6972185609d47036c0d93b4b7269b74ebd7073221c10"),
}, },
251: { 251: {
MustHexID("9b8f702a62d1bee67bedfeb102eca7f37fa1713e310f0d6651cc0c33ea7c5477575289ccd463e5a2574a00a676a1fdce05658ba447bb9d2827f0ba47b947e894"), hexEncPubkey("9b8f702a62d1bee67bedfeb102eca7f37fa1713e310f0d6651cc0c33ea7c5477575289ccd463e5a2574a00a676a1fdce05658ba447bb9d2827f0ba47b947e894"),
MustHexID("b97532eb83054ed054b4abdf413bb30c00e4205545c93521554dbe77faa3cfaa5bd31ef466a107b0b34a71ec97214c0c83919720142cddac93aa7a3e928d4708"), hexEncPubkey("b97532eb83054ed054b4abdf413bb30c00e4205545c93521554dbe77faa3cfaa5bd31ef466a107b0b34a71ec97214c0c83919720142cddac93aa7a3e928d4708"),
MustHexID("2f7a5e952bfb67f2f90b8441b5fadc9ee13b1dcde3afeeb3dd64bf937f86663cc5c55d1fa83952b5422763c7df1b7f2794b751c6be316ebc0beb4942e65ab8c1"), hexEncPubkey("2f7a5e952bfb67f2f90b8441b5fadc9ee13b1dcde3afeeb3dd64bf937f86663cc5c55d1fa83952b5422763c7df1b7f2794b751c6be316ebc0beb4942e65ab8c1"),
MustHexID("42c7483781727051a0b3660f14faf39e0d33de5e643702ae933837d036508ab856ce7eec8ec89c4929a4901256e5233a3d847d5d4893f91bcf21835a9a880fee"), hexEncPubkey("42c7483781727051a0b3660f14faf39e0d33de5e643702ae933837d036508ab856ce7eec8ec89c4929a4901256e5233a3d847d5d4893f91bcf21835a9a880fee"),
MustHexID("873bae27bf1dc854408fba94046a53ab0c965cebe1e4e12290806fc62b88deb1f4a47f9e18f78fc0e7913a0c6e42ac4d0fc3a20cea6bc65f0c8a0ca90b67521e"), hexEncPubkey("873bae27bf1dc854408fba94046a53ab0c965cebe1e4e12290806fc62b88deb1f4a47f9e18f78fc0e7913a0c6e42ac4d0fc3a20cea6bc65f0c8a0ca90b67521e"),
MustHexID("a7e3a370bbd761d413f8d209e85886f68bf73d5c3089b2dc6fa42aab1ecb5162635497eed95dee2417f3c9c74a3e76319625c48ead2e963c7de877cd4551f347"), hexEncPubkey("a7e3a370bbd761d413f8d209e85886f68bf73d5c3089b2dc6fa42aab1ecb5162635497eed95dee2417f3c9c74a3e76319625c48ead2e963c7de877cd4551f347"),
MustHexID("528597534776a40df2addaaea15b6ff832ce36b9748a265768368f657e76d58569d9f30dbb91e91cf0ae7efe8f402f17aa0ae15f5c55051ba03ba830287f4c42"), hexEncPubkey("528597534776a40df2addaaea15b6ff832ce36b9748a265768368f657e76d58569d9f30dbb91e91cf0ae7efe8f402f17aa0ae15f5c55051ba03ba830287f4c42"),
MustHexID("461d8bd4f13c3c09031fdb84f104ed737a52f630261463ce0bdb5704259bab4b737dda688285b8444dbecaecad7f50f835190b38684ced5e90c54219e5adf1bc"), hexEncPubkey("461d8bd4f13c3c09031fdb84f104ed737a52f630261463ce0bdb5704259bab4b737dda688285b8444dbecaecad7f50f835190b38684ced5e90c54219e5adf1bc"),
MustHexID("6ec50c0be3fd232737090fc0111caaf0bb6b18f72be453428087a11a97fd6b52db0344acbf789a689bd4f5f50f79017ea784f8fd6fe723ad6ae675b9e3b13e21"), hexEncPubkey("6ec50c0be3fd232737090fc0111caaf0bb6b18f72be453428087a11a97fd6b52db0344acbf789a689bd4f5f50f79017ea784f8fd6fe723ad6ae675b9e3b13e21"),
MustHexID("12fc5e2f77a83fdcc727b79d8ae7fe6a516881138d3011847ee136b400fed7cfba1f53fd7a9730253c7aa4f39abeacd04f138417ba7fcb0f36cccc3514e0dab6"), hexEncPubkey("12fc5e2f77a83fdcc727b79d8ae7fe6a516881138d3011847ee136b400fed7cfba1f53fd7a9730253c7aa4f39abeacd04f138417ba7fcb0f36cccc3514e0dab6"),
MustHexID("4fdbe75914ccd0bce02101606a1ccf3657ec963e3b3c20239d5fec87673fe446d649b4f15f1fe1a40e6cfbd446dda2d31d40bb602b1093b8fcd5f139ba0eb46a"), hexEncPubkey("4fdbe75914ccd0bce02101606a1ccf3657ec963e3b3c20239d5fec87673fe446d649b4f15f1fe1a40e6cfbd446dda2d31d40bb602b1093b8fcd5f139ba0eb46a"),
MustHexID("3753668a0f6281e425ea69b52cb2d17ab97afbe6eb84cf5d25425bc5e53009388857640668fadd7c110721e6047c9697803bd8a6487b43bb343bfa32ebf24039"), hexEncPubkey("3753668a0f6281e425ea69b52cb2d17ab97afbe6eb84cf5d25425bc5e53009388857640668fadd7c110721e6047c9697803bd8a6487b43bb343bfa32ebf24039"),
MustHexID("2e81b16346637dec4410fd88e527346145b9c0a849dbf2628049ac7dae016c8f4305649d5659ec77f1e8a0fac0db457b6080547226f06283598e3740ad94849a"), hexEncPubkey("2e81b16346637dec4410fd88e527346145b9c0a849dbf2628049ac7dae016c8f4305649d5659ec77f1e8a0fac0db457b6080547226f06283598e3740ad94849a"),
MustHexID("802c3cc27f91c89213223d758f8d2ecd41135b357b6d698f24d811cdf113033a81c38e0bdff574a5c005b00a8c193dc2531f8c1fa05fa60acf0ab6f2858af09f"), hexEncPubkey("802c3cc27f91c89213223d758f8d2ecd41135b357b6d698f24d811cdf113033a81c38e0bdff574a5c005b00a8c193dc2531f8c1fa05fa60acf0ab6f2858af09f"),
MustHexID("fcc9a2e1ac3667026ff16192876d1813bb75abdbf39b929a92863012fe8b1d890badea7a0de36274d5c1eb1e8f975785532c50d80fd44b1a4b692f437303393f"), hexEncPubkey("fcc9a2e1ac3667026ff16192876d1813bb75abdbf39b929a92863012fe8b1d890badea7a0de36274d5c1eb1e8f975785532c50d80fd44b1a4b692f437303393f"),
MustHexID("6d8b3efb461151dd4f6de809b62726f5b89e9b38e9ba1391967f61cde844f7528fecf821b74049207cee5a527096b31f3ad623928cd3ce51d926fa345a6b2951"), hexEncPubkey("6d8b3efb461151dd4f6de809b62726f5b89e9b38e9ba1391967f61cde844f7528fecf821b74049207cee5a527096b31f3ad623928cd3ce51d926fa345a6b2951"),
}, },
252: { 252: {
MustHexID("f1ae93157cc48c2075dd5868fbf523e79e06caf4b8198f352f6e526680b78ff4227263de92612f7d63472bd09367bb92a636fff16fe46ccf41614f7a72495c2a"), hexEncPubkey("f1ae93157cc48c2075dd5868fbf523e79e06caf4b8198f352f6e526680b78ff4227263de92612f7d63472bd09367bb92a636fff16fe46ccf41614f7a72495c2a"),
MustHexID("587f482d111b239c27c0cb89b51dd5d574db8efd8de14a2e6a1400c54d4567e77c65f89c1da52841212080b91604104768350276b6682f2f961cdaf4039581c7"), hexEncPubkey("587f482d111b239c27c0cb89b51dd5d574db8efd8de14a2e6a1400c54d4567e77c65f89c1da52841212080b91604104768350276b6682f2f961cdaf4039581c7"),
MustHexID("e3f88274d35cefdaabdf205afe0e80e936cc982b8e3e47a84ce664c413b29016a4fb4f3a3ebae0a2f79671f8323661ed462bf4390af94c424dc8ace0c301b90f"), hexEncPubkey("e3f88274d35cefdaabdf205afe0e80e936cc982b8e3e47a84ce664c413b29016a4fb4f3a3ebae0a2f79671f8323661ed462bf4390af94c424dc8ace0c301b90f"),
MustHexID("0ddc736077da9a12ba410dc5ea63cbcbe7659dd08596485b2bff3435221f82c10d263efd9af938e128464be64a178b7cd22e19f400d5802f4c9df54bf89f2619"), hexEncPubkey("0ddc736077da9a12ba410dc5ea63cbcbe7659dd08596485b2bff3435221f82c10d263efd9af938e128464be64a178b7cd22e19f400d5802f4c9df54bf89f2619"),
MustHexID("784aa34d833c6ce63fcc1279630113c3272e82c4ae8c126c5a52a88ac461b6baeed4244e607b05dc14e5b2f41c70a273c3804dea237f14f7a1e546f6d1309d14"), hexEncPubkey("784aa34d833c6ce63fcc1279630113c3272e82c4ae8c126c5a52a88ac461b6baeed4244e607b05dc14e5b2f41c70a273c3804dea237f14f7a1e546f6d1309d14"),
MustHexID("f253a2c354ee0e27cfcae786d726753d4ad24be6516b279a936195a487de4a59dbc296accf20463749ff55293263ed8c1b6365eecb248d44e75e9741c0d18205"), hexEncPubkey("f253a2c354ee0e27cfcae786d726753d4ad24be6516b279a936195a487de4a59dbc296accf20463749ff55293263ed8c1b6365eecb248d44e75e9741c0d18205"),
MustHexID("a1910b80357b3ad9b4593e0628922939614dc9056a5fbf477279c8b2c1d0b4b31d89a0c09d0d41f795271d14d3360ef08a3f821e65e7e1f56c07a36afe49c7c5"), hexEncPubkey("a1910b80357b3ad9b4593e0628922939614dc9056a5fbf477279c8b2c1d0b4b31d89a0c09d0d41f795271d14d3360ef08a3f821e65e7e1f56c07a36afe49c7c5"),
MustHexID("f1168552c2efe541160f0909b0b4a9d6aeedcf595cdf0e9b165c97e3e197471a1ee6320e93389edfba28af6eaf10de98597ad56e7ab1b504ed762451996c3b98"), hexEncPubkey("f1168552c2efe541160f0909b0b4a9d6aeedcf595cdf0e9b165c97e3e197471a1ee6320e93389edfba28af6eaf10de98597ad56e7ab1b504ed762451996c3b98"),
MustHexID("b0c8e5d2c8634a7930e1a6fd082e448c6cf9d2d8b7293558b59238815a4df926c286bf297d2049f14e8296a6eb3256af614ec1812c4f2bbe807673b58bf14c8c"), hexEncPubkey("b0c8e5d2c8634a7930e1a6fd082e448c6cf9d2d8b7293558b59238815a4df926c286bf297d2049f14e8296a6eb3256af614ec1812c4f2bbe807673b58bf14c8c"),
MustHexID("0fb346076396a38badc342df3679b55bd7f40a609ab103411fe45082c01f12ea016729e95914b2b5540e987ff5c9b133e85862648e7f36abdfd23100d248d234"), hexEncPubkey("0fb346076396a38badc342df3679b55bd7f40a609ab103411fe45082c01f12ea016729e95914b2b5540e987ff5c9b133e85862648e7f36abdfd23100d248d234"),
MustHexID("f736e0cc83417feaa280d9483f5d4d72d1b036cd0c6d9cbdeb8ac35ceb2604780de46dddaa32a378474e1d5ccdf79b373331c30c7911ade2ae32f98832e5de1f"), hexEncPubkey("f736e0cc83417feaa280d9483f5d4d72d1b036cd0c6d9cbdeb8ac35ceb2604780de46dddaa32a378474e1d5ccdf79b373331c30c7911ade2ae32f98832e5de1f"),
MustHexID("8b02991457602f42b38b342d3f2259ae4100c354b3843885f7e4e07bd644f64dab94bb7f38a3915f8b7f11d8e3f81c28e07a0078cf79d7397e38a7b7e0c857e2"), hexEncPubkey("8b02991457602f42b38b342d3f2259ae4100c354b3843885f7e4e07bd644f64dab94bb7f38a3915f8b7f11d8e3f81c28e07a0078cf79d7397e38a7b7e0c857e2"),
MustHexID("9221d9f04a8a184993d12baa91116692bb685f887671302999d69300ad103eb2d2c75a09d8979404c6dd28f12362f58a1a43619c493d9108fd47588a23ce5824"), hexEncPubkey("9221d9f04a8a184993d12baa91116692bb685f887671302999d69300ad103eb2d2c75a09d8979404c6dd28f12362f58a1a43619c493d9108fd47588a23ce5824"),
MustHexID("652797801744dada833fff207d67484742eea6835d695925f3e618d71b68ec3c65bdd85b4302b2cdcb835ad3f94fd00d8da07e570b41bc0d2bcf69a8de1b3284"), hexEncPubkey("652797801744dada833fff207d67484742eea6835d695925f3e618d71b68ec3c65bdd85b4302b2cdcb835ad3f94fd00d8da07e570b41bc0d2bcf69a8de1b3284"),
MustHexID("d84f06fe64debc4cd0625e36d19b99014b6218375262cc2209202bdbafd7dffcc4e34ce6398e182e02fd8faeed622c3e175545864902dfd3d1ac57647cddf4c6"), hexEncPubkey("d84f06fe64debc4cd0625e36d19b99014b6218375262cc2209202bdbafd7dffcc4e34ce6398e182e02fd8faeed622c3e175545864902dfd3d1ac57647cddf4c6"),
MustHexID("d0ed87b294f38f1d741eb601020eeec30ac16331d05880fe27868f1e454446de367d7457b41c79e202eaf9525b029e4f1d7e17d85a55f83a557c005c68d7328a"), hexEncPubkey("d0ed87b294f38f1d741eb601020eeec30ac16331d05880fe27868f1e454446de367d7457b41c79e202eaf9525b029e4f1d7e17d85a55f83a557c005c68d7328a"),
}, },
253: { 253: {
MustHexID("ad4485e386e3cc7c7310366a7c38fb810b8896c0d52e55944bfd320ca294e7912d6c53c0a0cf85e7ce226e92491d60430e86f8f15cda0161ed71893fb4a9e3a1"), hexEncPubkey("ad4485e386e3cc7c7310366a7c38fb810b8896c0d52e55944bfd320ca294e7912d6c53c0a0cf85e7ce226e92491d60430e86f8f15cda0161ed71893fb4a9e3a1"),
MustHexID("36d0e7e5b7734f98c6183eeeb8ac5130a85e910a925311a19c4941b1290f945d4fc3996b12ef4966960b6fa0fb29b1604f83a0f81bd5fd6398d2e1a22e46af0c"), hexEncPubkey("36d0e7e5b7734f98c6183eeeb8ac5130a85e910a925311a19c4941b1290f945d4fc3996b12ef4966960b6fa0fb29b1604f83a0f81bd5fd6398d2e1a22e46af0c"),
MustHexID("7d307d8acb4a561afa23bdf0bd945d35c90245e26345ec3a1f9f7df354222a7cdcb81339c9ed6744526c27a1a0c8d10857e98df942fa433602facac71ac68a31"), hexEncPubkey("7d307d8acb4a561afa23bdf0bd945d35c90245e26345ec3a1f9f7df354222a7cdcb81339c9ed6744526c27a1a0c8d10857e98df942fa433602facac71ac68a31"),
MustHexID("d97bf55f88c83fae36232661af115d66ca600fc4bd6d1fb35ff9bb4dad674c02cf8c8d05f317525b5522250db58bb1ecafb7157392bf5aa61b178c61f098d995"), hexEncPubkey("d97bf55f88c83fae36232661af115d66ca600fc4bd6d1fb35ff9bb4dad674c02cf8c8d05f317525b5522250db58bb1ecafb7157392bf5aa61b178c61f098d995"),
MustHexID("7045d678f1f9eb7a4613764d17bd5698796494d0bf977b16f2dbc272b8a0f7858a60805c022fc3d1fe4f31c37e63cdaca0416c0d053ef48a815f8b19121605e0"), hexEncPubkey("7045d678f1f9eb7a4613764d17bd5698796494d0bf977b16f2dbc272b8a0f7858a60805c022fc3d1fe4f31c37e63cdaca0416c0d053ef48a815f8b19121605e0"),
MustHexID("14e1f21418d445748de2a95cd9a8c3b15b506f86a0acabd8af44bb968ce39885b19c8822af61b3dd58a34d1f265baec30e3ae56149dc7d2aa4a538f7319f69c8"), hexEncPubkey("14e1f21418d445748de2a95cd9a8c3b15b506f86a0acabd8af44bb968ce39885b19c8822af61b3dd58a34d1f265baec30e3ae56149dc7d2aa4a538f7319f69c8"),
MustHexID("b9453d78281b66a4eac95a1546017111eaaa5f92a65d0de10b1122940e92b319728a24edf4dec6acc412321b1c95266d39c7b3a5d265c629c3e49a65fb022c09"), hexEncPubkey("b9453d78281b66a4eac95a1546017111eaaa5f92a65d0de10b1122940e92b319728a24edf4dec6acc412321b1c95266d39c7b3a5d265c629c3e49a65fb022c09"),
MustHexID("e8a49248419e3824a00d86af422f22f7366e2d4922b304b7169937616a01d9d6fa5abf5cc01061a352dc866f48e1fa2240dbb453d872b1d7be62bdfc1d5e248c"), hexEncPubkey("e8a49248419e3824a00d86af422f22f7366e2d4922b304b7169937616a01d9d6fa5abf5cc01061a352dc866f48e1fa2240dbb453d872b1d7be62bdfc1d5e248c"),
MustHexID("bebcff24b52362f30e0589ee573ce2d86f073d58d18e6852a592fa86ceb1a6c9b96d7fb9ec7ed1ed98a51b6743039e780279f6bb49d0a04327ac7a182d9a56f6"), hexEncPubkey("bebcff24b52362f30e0589ee573ce2d86f073d58d18e6852a592fa86ceb1a6c9b96d7fb9ec7ed1ed98a51b6743039e780279f6bb49d0a04327ac7a182d9a56f6"),
MustHexID("d0835e5a4291db249b8d2fca9f503049988180c7d247bedaa2cf3a1bad0a76709360a85d4f9a1423b2cbc82bb4d94b47c0cde20afc430224834c49fe312a9ae3"), hexEncPubkey("d0835e5a4291db249b8d2fca9f503049988180c7d247bedaa2cf3a1bad0a76709360a85d4f9a1423b2cbc82bb4d94b47c0cde20afc430224834c49fe312a9ae3"),
MustHexID("6b087fe2a2da5e4f0b0f4777598a4a7fb66bf77dbd5bfc44e8a7eaa432ab585a6e226891f56a7d4f5ed11a7c57b90f1661bba1059590ca4267a35801c2802913"), hexEncPubkey("6b087fe2a2da5e4f0b0f4777598a4a7fb66bf77dbd5bfc44e8a7eaa432ab585a6e226891f56a7d4f5ed11a7c57b90f1661bba1059590ca4267a35801c2802913"),
MustHexID("d901e5bde52d1a0f4ddf010a686a53974cdae4ebe5c6551b3c37d6b6d635d38d5b0e5f80bc0186a2c7809dbf3a42870dd09643e68d32db896c6da8ba734579e7"), hexEncPubkey("d901e5bde52d1a0f4ddf010a686a53974cdae4ebe5c6551b3c37d6b6d635d38d5b0e5f80bc0186a2c7809dbf3a42870dd09643e68d32db896c6da8ba734579e7"),
MustHexID("96419fb80efae4b674402bb969ebaab86c1274f29a83a311e24516d36cdf148fe21754d46c97688cdd7468f24c08b13e4727c29263393638a3b37b99ff60ebca"), hexEncPubkey("96419fb80efae4b674402bb969ebaab86c1274f29a83a311e24516d36cdf148fe21754d46c97688cdd7468f24c08b13e4727c29263393638a3b37b99ff60ebca"),
MustHexID("7b9c1889ae916a5d5abcdfb0aaedcc9c6f9eb1c1a4f68d0c2d034fe79ac610ce917c3abc670744150fa891bfcd8ab14fed6983fca964de920aa393fa7b326748"), hexEncPubkey("7b9c1889ae916a5d5abcdfb0aaedcc9c6f9eb1c1a4f68d0c2d034fe79ac610ce917c3abc670744150fa891bfcd8ab14fed6983fca964de920aa393fa7b326748"),
MustHexID("7a369b2b8962cc4c65900be046482fbf7c14f98a135bbbae25152c82ad168fb2097b3d1429197cf46d3ce9fdeb64808f908a489cc6019725db040060fdfe5405"), hexEncPubkey("7a369b2b8962cc4c65900be046482fbf7c14f98a135bbbae25152c82ad168fb2097b3d1429197cf46d3ce9fdeb64808f908a489cc6019725db040060fdfe5405"),
MustHexID("47bcae48288da5ecc7f5058dfa07cf14d89d06d6e449cb946e237aa6652ea050d9f5a24a65efdc0013ccf232bf88670979eddef249b054f63f38da9d7796dbd8"), hexEncPubkey("47bcae48288da5ecc7f5058dfa07cf14d89d06d6e449cb946e237aa6652ea050d9f5a24a65efdc0013ccf232bf88670979eddef249b054f63f38da9d7796dbd8"),
}, },
254: { 254: {
MustHexID("099739d7abc8abd38ecc7a816c521a1168a4dbd359fa7212a5123ab583ffa1cf485a5fed219575d6475dbcdd541638b2d3631a6c7fce7474e7fe3cba1d4d5853"), hexEncPubkey("099739d7abc8abd38ecc7a816c521a1168a4dbd359fa7212a5123ab583ffa1cf485a5fed219575d6475dbcdd541638b2d3631a6c7fce7474e7fe3cba1d4d5853"),
MustHexID("c2b01603b088a7182d0cf7ef29fb2b04c70acb320fccf78526bf9472e10c74ee70b3fcfa6f4b11d167bd7d3bc4d936b660f2c9bff934793d97cb21750e7c3d31"), hexEncPubkey("c2b01603b088a7182d0cf7ef29fb2b04c70acb320fccf78526bf9472e10c74ee70b3fcfa6f4b11d167bd7d3bc4d936b660f2c9bff934793d97cb21750e7c3d31"),
MustHexID("20e4d8f45f2f863e94b45548c1ef22a11f7d36f263e4f8623761e05a64c4572379b000a52211751e2561b0f14f4fc92dd4130410c8ccc71eb4f0e95a700d4ca9"), hexEncPubkey("20e4d8f45f2f863e94b45548c1ef22a11f7d36f263e4f8623761e05a64c4572379b000a52211751e2561b0f14f4fc92dd4130410c8ccc71eb4f0e95a700d4ca9"),
MustHexID("27f4a16cc085e72d86e25c98bd2eca173eaaee7565c78ec5a52e9e12b2211f35de81b5b45e9195de2ebfe29106742c59112b951a04eb7ae48822911fc1f9389e"), hexEncPubkey("27f4a16cc085e72d86e25c98bd2eca173eaaee7565c78ec5a52e9e12b2211f35de81b5b45e9195de2ebfe29106742c59112b951a04eb7ae48822911fc1f9389e"),
MustHexID("55db5ee7d98e7f0b1c3b9d5be6f2bc619a1b86c3cdd513160ad4dcf267037a5fffad527ac15d50aeb32c59c13d1d4c1e567ebbf4de0d25236130c8361f9aac63"), hexEncPubkey("55db5ee7d98e7f0b1c3b9d5be6f2bc619a1b86c3cdd513160ad4dcf267037a5fffad527ac15d50aeb32c59c13d1d4c1e567ebbf4de0d25236130c8361f9aac63"),
MustHexID("883df308b0130fc928a8559fe50667a0fff80493bc09685d18213b2db241a3ad11310ed86b0ef662b3ce21fc3d9aa7f3fc24b8d9afe17c7407e9afd3345ae548"), hexEncPubkey("883df308b0130fc928a8559fe50667a0fff80493bc09685d18213b2db241a3ad11310ed86b0ef662b3ce21fc3d9aa7f3fc24b8d9afe17c7407e9afd3345ae548"),
MustHexID("c7af968cc9bc8200c3ee1a387405f7563be1dce6710a3439f42ea40657d0eae9d2b3c16c42d779605351fcdece4da637b9804e60ca08cfb89aec32c197beffa6"), hexEncPubkey("c7af968cc9bc8200c3ee1a387405f7563be1dce6710a3439f42ea40657d0eae9d2b3c16c42d779605351fcdece4da637b9804e60ca08cfb89aec32c197beffa6"),
MustHexID("3e66f2b788e3ff1d04106b80597915cd7afa06c405a7ae026556b6e583dca8e05cfbab5039bb9a1b5d06083ffe8de5780b1775550e7218f5e98624bf7af9a0a8"), hexEncPubkey("3e66f2b788e3ff1d04106b80597915cd7afa06c405a7ae026556b6e583dca8e05cfbab5039bb9a1b5d06083ffe8de5780b1775550e7218f5e98624bf7af9a0a8"),
MustHexID("4fc7f53764de3337fdaec0a711d35d3a923e72fa65025444d12230b3552ed43d9b2d1ad08ccb11f2d50c58809e6dd74dde910e195294fca3b47ae5a3967cc479"), hexEncPubkey("4fc7f53764de3337fdaec0a711d35d3a923e72fa65025444d12230b3552ed43d9b2d1ad08ccb11f2d50c58809e6dd74dde910e195294fca3b47ae5a3967cc479"),
MustHexID("bafdfdcf6ccaa989436752fa97c77477b6baa7deb374b16c095492c529eb133e8e2f99e1977012b64767b9d34b2cf6d2048ed489bd822b5139b523f6a423167b"), hexEncPubkey("bafdfdcf6ccaa989436752fa97c77477b6baa7deb374b16c095492c529eb133e8e2f99e1977012b64767b9d34b2cf6d2048ed489bd822b5139b523f6a423167b"),
MustHexID("7f5d78008a4312fe059104ce80202c82b8915c2eb4411c6b812b16f7642e57c00f2c9425121f5cbac4257fe0b3e81ef5dea97ea2dbaa98f6a8b6fd4d1e5980bb"), hexEncPubkey("7f5d78008a4312fe059104ce80202c82b8915c2eb4411c6b812b16f7642e57c00f2c9425121f5cbac4257fe0b3e81ef5dea97ea2dbaa98f6a8b6fd4d1e5980bb"),
MustHexID("598c37fe78f922751a052f463aeb0cb0bc7f52b7c2a4cf2da72ec0931c7c32175d4165d0f8998f7320e87324ac3311c03f9382a5385c55f0407b7a66b2acd864"), hexEncPubkey("598c37fe78f922751a052f463aeb0cb0bc7f52b7c2a4cf2da72ec0931c7c32175d4165d0f8998f7320e87324ac3311c03f9382a5385c55f0407b7a66b2acd864"),
MustHexID("f758c4136e1c148777a7f3275a76e2db0b2b04066fd738554ec398c1c6cc9fb47e14a3b4c87bd47deaeab3ffd2110514c3855685a374794daff87b605b27ee2e"), hexEncPubkey("f758c4136e1c148777a7f3275a76e2db0b2b04066fd738554ec398c1c6cc9fb47e14a3b4c87bd47deaeab3ffd2110514c3855685a374794daff87b605b27ee2e"),
MustHexID("0307bb9e4fd865a49dcf1fe4333d1b944547db650ab580af0b33e53c4fef6c789531110fac801bbcbce21fc4d6f61b6d5b24abdf5b22e3030646d579f6dca9c2"), hexEncPubkey("0307bb9e4fd865a49dcf1fe4333d1b944547db650ab580af0b33e53c4fef6c789531110fac801bbcbce21fc4d6f61b6d5b24abdf5b22e3030646d579f6dca9c2"),
MustHexID("82504b6eb49bb2c0f91a7006ce9cefdbaf6df38706198502c2e06601091fc9dc91e4f15db3410d45c6af355bc270b0f268d3dff560f956985c7332d4b10bd1ed"), hexEncPubkey("82504b6eb49bb2c0f91a7006ce9cefdbaf6df38706198502c2e06601091fc9dc91e4f15db3410d45c6af355bc270b0f268d3dff560f956985c7332d4b10bd1ed"),
MustHexID("b39b5b677b45944ceebe76e76d1f051de2f2a0ec7b0d650da52135743e66a9a5dba45f638258f9a7545d9a790c7fe6d3fdf82c25425c7887323e45d27d06c057"), hexEncPubkey("b39b5b677b45944ceebe76e76d1f051de2f2a0ec7b0d650da52135743e66a9a5dba45f638258f9a7545d9a790c7fe6d3fdf82c25425c7887323e45d27d06c057"),
}, },
255: { 255: {
MustHexID("5c4d58d46e055dd1f093f81ee60a675e1f02f54da6206720adee4dccef9b67a31efc5c2a2949c31a04ee31beadc79aba10da31440a1f9ff2a24093c63c36d784"), hexEncPubkey("5c4d58d46e055dd1f093f81ee60a675e1f02f54da6206720adee4dccef9b67a31efc5c2a2949c31a04ee31beadc79aba10da31440a1f9ff2a24093c63c36d784"),
MustHexID("ea72161ffdd4b1e124c7b93b0684805f4c4b58d617ed498b37a145c670dbc2e04976f8785583d9c805ffbf343c31d492d79f841652bbbd01b61ed85640b23495"), hexEncPubkey("ea72161ffdd4b1e124c7b93b0684805f4c4b58d617ed498b37a145c670dbc2e04976f8785583d9c805ffbf343c31d492d79f841652bbbd01b61ed85640b23495"),
MustHexID("51caa1d93352d47a8e531692a3612adac1e8ac68d0a200d086c1c57ae1e1a91aa285ab242e8c52ef9d7afe374c9485b122ae815f1707b875569d0433c1c3ce85"), hexEncPubkey("51caa1d93352d47a8e531692a3612adac1e8ac68d0a200d086c1c57ae1e1a91aa285ab242e8c52ef9d7afe374c9485b122ae815f1707b875569d0433c1c3ce85"),
MustHexID("c08397d5751b47bd3da044b908be0fb0e510d3149574dff7aeab33749b023bb171b5769990fe17469dbebc100bc150e798aeda426a2dcc766699a225fddd75c6"), hexEncPubkey("c08397d5751b47bd3da044b908be0fb0e510d3149574dff7aeab33749b023bb171b5769990fe17469dbebc100bc150e798aeda426a2dcc766699a225fddd75c6"),
MustHexID("0222c1c194b749736e593f937fad67ee348ac57287a15c7e42877aa38a9b87732a408bca370f812efd0eedbff13e6d5b854bf3ba1dec431a796ed47f32552b09"), hexEncPubkey("0222c1c194b749736e593f937fad67ee348ac57287a15c7e42877aa38a9b87732a408bca370f812efd0eedbff13e6d5b854bf3ba1dec431a796ed47f32552b09"),
MustHexID("03d859cd46ef02d9bfad5268461a6955426845eef4126de6be0fa4e8d7e0727ba2385b78f1a883a8239e95ebb814f2af8379632c7d5b100688eebc5841209582"), hexEncPubkey("03d859cd46ef02d9bfad5268461a6955426845eef4126de6be0fa4e8d7e0727ba2385b78f1a883a8239e95ebb814f2af8379632c7d5b100688eebc5841209582"),
MustHexID("64d5004b7e043c39ff0bd10cb20094c287721d5251715884c280a612b494b3e9e1c64ba6f67614994c7d969a0d0c0295d107d53fc225d47c44c4b82852d6f960"), hexEncPubkey("64d5004b7e043c39ff0bd10cb20094c287721d5251715884c280a612b494b3e9e1c64ba6f67614994c7d969a0d0c0295d107d53fc225d47c44c4b82852d6f960"),
MustHexID("b0a5eefb2dab6f786670f35bf9641eefe6dd87fd3f1362bcab4aaa792903500ab23d88fae68411372e0813b057535a601d46e454323745a948017f6063a47b1f"), hexEncPubkey("b0a5eefb2dab6f786670f35bf9641eefe6dd87fd3f1362bcab4aaa792903500ab23d88fae68411372e0813b057535a601d46e454323745a948017f6063a47b1f"),
MustHexID("0cc6df0a3433d448b5684d2a3ffa9d1a825388177a18f44ad0008c7bd7702f1ec0fc38b83506f7de689c3b6ecb552599927e29699eed6bb867ff08f80068b287"), hexEncPubkey("0cc6df0a3433d448b5684d2a3ffa9d1a825388177a18f44ad0008c7bd7702f1ec0fc38b83506f7de689c3b6ecb552599927e29699eed6bb867ff08f80068b287"),
MustHexID("50772f7b8c03a4e153355fbbf79c8a80cf32af656ff0c7873c99911099d04a0dae0674706c357e0145ad017a0ade65e6052cb1b0d574fcd6f67da3eee0ace66b"), hexEncPubkey("50772f7b8c03a4e153355fbbf79c8a80cf32af656ff0c7873c99911099d04a0dae0674706c357e0145ad017a0ade65e6052cb1b0d574fcd6f67da3eee0ace66b"),
MustHexID("1ae37829c9ef41f8b508b82259ebac76b1ed900d7a45c08b7970f25d2d48ddd1829e2f11423a18749940b6dab8598c6e416cef0efd47e46e51f29a0bc65b37cd"), hexEncPubkey("1ae37829c9ef41f8b508b82259ebac76b1ed900d7a45c08b7970f25d2d48ddd1829e2f11423a18749940b6dab8598c6e416cef0efd47e46e51f29a0bc65b37cd"),
MustHexID("ba973cab31c2af091fc1644a93527d62b2394999e2b6ccbf158dd5ab9796a43d408786f1803ef4e29debfeb62fce2b6caa5ab2b24d1549c822a11c40c2856665"), hexEncPubkey("ba973cab31c2af091fc1644a93527d62b2394999e2b6ccbf158dd5ab9796a43d408786f1803ef4e29debfeb62fce2b6caa5ab2b24d1549c822a11c40c2856665"),
MustHexID("bc413ad270dd6ea25bddba78f3298b03b8ba6f8608ac03d06007d4116fa78ef5a0cfe8c80155089382fc7a193243ee5500082660cb5d7793f60f2d7d18650964"), hexEncPubkey("bc413ad270dd6ea25bddba78f3298b03b8ba6f8608ac03d06007d4116fa78ef5a0cfe8c80155089382fc7a193243ee5500082660cb5d7793f60f2d7d18650964"),
MustHexID("5a6a9ef07634d9eec3baa87c997b529b92652afa11473dfee41ef7037d5c06e0ddb9fe842364462d79dd31cff8a59a1b8d5bc2b810dea1d4cbbd3beb80ecec83"), hexEncPubkey("5a6a9ef07634d9eec3baa87c997b529b92652afa11473dfee41ef7037d5c06e0ddb9fe842364462d79dd31cff8a59a1b8d5bc2b810dea1d4cbbd3beb80ecec83"),
MustHexID("f492c6ee2696d5f682f7f537757e52744c2ae560f1090a07024609e903d334e9e174fc01609c5a229ddbcac36c9d21adaf6457dab38a25bfd44f2f0ee4277998"), hexEncPubkey("f492c6ee2696d5f682f7f537757e52744c2ae560f1090a07024609e903d334e9e174fc01609c5a229ddbcac36c9d21adaf6457dab38a25bfd44f2f0ee4277998"),
MustHexID("459e4db99298cb0467a90acee6888b08bb857450deac11015cced5104853be5adce5b69c740968bc7f931495d671a70cad9f48546d7cd203357fe9af0e8d2164"), hexEncPubkey("459e4db99298cb0467a90acee6888b08bb857450deac11015cced5104853be5adce5b69c740968bc7f931495d671a70cad9f48546d7cd203357fe9af0e8d2164"),
}, },
256: { 256: {
MustHexID("a8593af8a4aef7b806b5197612017951bac8845a1917ca9a6a15dd6086d608505144990b245785c4cd2d67a295701c7aac2aa18823fb0033987284b019656268"), hexEncPubkey("a8593af8a4aef7b806b5197612017951bac8845a1917ca9a6a15dd6086d608505144990b245785c4cd2d67a295701c7aac2aa18823fb0033987284b019656268"),
MustHexID("d2eebef914928c3aad77fc1b2a495f52d2294acf5edaa7d8a530b540f094b861a68fe8348a46a7c302f08ab609d85912a4968eacfea0740847b29421b4795d9e"), hexEncPubkey("d2eebef914928c3aad77fc1b2a495f52d2294acf5edaa7d8a530b540f094b861a68fe8348a46a7c302f08ab609d85912a4968eacfea0740847b29421b4795d9e"),
MustHexID("b14bfcb31495f32b650b63cf7d08492e3e29071fdc73cf2da0da48d4b191a70ba1a65f42ad8c343206101f00f8a48e8db4b08bf3f622c0853e7323b250835b91"), hexEncPubkey("b14bfcb31495f32b650b63cf7d08492e3e29071fdc73cf2da0da48d4b191a70ba1a65f42ad8c343206101f00f8a48e8db4b08bf3f622c0853e7323b250835b91"),
MustHexID("7feaee0d818c03eb30e4e0bf03ade0f3c21ca38e938a761aa1781cf70bda8cc5cd631a6cc53dd44f1d4a6d3e2dae6513c6c66ee50cb2f0e9ad6f7e319b309fd9"), hexEncPubkey("7feaee0d818c03eb30e4e0bf03ade0f3c21ca38e938a761aa1781cf70bda8cc5cd631a6cc53dd44f1d4a6d3e2dae6513c6c66ee50cb2f0e9ad6f7e319b309fd9"),
MustHexID("4ca3b657b139311db8d583c25dd5963005e46689e1317620496cc64129c7f3e52870820e0ec7941d28809311df6db8a2867bbd4f235b4248af24d7a9c22d1232"), hexEncPubkey("4ca3b657b139311db8d583c25dd5963005e46689e1317620496cc64129c7f3e52870820e0ec7941d28809311df6db8a2867bbd4f235b4248af24d7a9c22d1232"),
MustHexID("1181defb1d16851d42dd951d84424d6bd1479137f587fa184d5a8152be6b6b16ed08bcdb2c2ed8539bcde98c80c432875f9f724737c316a2bd385a39d3cab1d8"), hexEncPubkey("1181defb1d16851d42dd951d84424d6bd1479137f587fa184d5a8152be6b6b16ed08bcdb2c2ed8539bcde98c80c432875f9f724737c316a2bd385a39d3cab1d8"),
MustHexID("d9dd818769fa0c3ec9f553c759b92476f082817252a04a47dc1777740b1731d280058c66f982812f173a294acf4944a85ba08346e2de153ba3ba41ce8a62cb64"), hexEncPubkey("d9dd818769fa0c3ec9f553c759b92476f082817252a04a47dc1777740b1731d280058c66f982812f173a294acf4944a85ba08346e2de153ba3ba41ce8a62cb64"),
MustHexID("bd7c4f8a9e770aa915c771b15e107ca123d838762da0d3ffc53aa6b53e9cd076cffc534ec4d2e4c334c683f1f5ea72e0e123f6c261915ed5b58ac1b59f003d88"), hexEncPubkey("bd7c4f8a9e770aa915c771b15e107ca123d838762da0d3ffc53aa6b53e9cd076cffc534ec4d2e4c334c683f1f5ea72e0e123f6c261915ed5b58ac1b59f003d88"),
MustHexID("3dd5739c73649d510456a70e9d6b46a855864a4a3f744e088fd8c8da11b18e4c9b5f2d7da50b1c147b2bae5ca9609ae01f7a3cdea9dce34f80a91d29cd82f918"), hexEncPubkey("3dd5739c73649d510456a70e9d6b46a855864a4a3f744e088fd8c8da11b18e4c9b5f2d7da50b1c147b2bae5ca9609ae01f7a3cdea9dce34f80a91d29cd82f918"),
MustHexID("f0d7df1efc439b4bcc0b762118c1cfa99b2a6143a9f4b10e3c9465125f4c9fca4ab88a2504169bbcad65492cf2f50da9dd5d077c39574a944f94d8246529066b"), hexEncPubkey("f0d7df1efc439b4bcc0b762118c1cfa99b2a6143a9f4b10e3c9465125f4c9fca4ab88a2504169bbcad65492cf2f50da9dd5d077c39574a944f94d8246529066b"),
MustHexID("dd598b9ba441448e5fb1a6ec6c5f5aa9605bad6e223297c729b1705d11d05f6bfd3d41988b694681ae69bb03b9a08bff4beab5596503d12a39bffb5cd6e94c7c"), hexEncPubkey("dd598b9ba441448e5fb1a6ec6c5f5aa9605bad6e223297c729b1705d11d05f6bfd3d41988b694681ae69bb03b9a08bff4beab5596503d12a39bffb5cd6e94c7c"),
MustHexID("3fce284ac97e567aebae681b15b7a2b6df9d873945536335883e4bbc26460c064370537f323fd1ada828ea43154992d14ac0cec0940a2bd2a3f42ec156d60c83"), hexEncPubkey("3fce284ac97e567aebae681b15b7a2b6df9d873945536335883e4bbc26460c064370537f323fd1ada828ea43154992d14ac0cec0940a2bd2a3f42ec156d60c83"),
MustHexID("7c8dfa8c1311cb14fb29a8ac11bca23ecc115e56d9fcf7b7ac1db9066aa4eb39f8b1dabf46e192a65be95ebfb4e839b5ab4533fef414921825e996b210dd53bd"), hexEncPubkey("7c8dfa8c1311cb14fb29a8ac11bca23ecc115e56d9fcf7b7ac1db9066aa4eb39f8b1dabf46e192a65be95ebfb4e839b5ab4533fef414921825e996b210dd53bd"),
MustHexID("cafa6934f82120456620573d7f801390ed5e16ed619613a37e409e44ab355ef755e83565a913b48a9466db786f8d4fbd590bfec474c2524d4a2608d4eafd6abd"), hexEncPubkey("cafa6934f82120456620573d7f801390ed5e16ed619613a37e409e44ab355ef755e83565a913b48a9466db786f8d4fbd590bfec474c2524d4a2608d4eafd6abd"),
MustHexID("9d16600d0dd310d77045769fed2cb427f32db88cd57d86e49390c2ba8a9698cfa856f775be2013237226e7bf47b248871cf865d23015937d1edeb20db5e3e760"), hexEncPubkey("9d16600d0dd310d77045769fed2cb427f32db88cd57d86e49390c2ba8a9698cfa856f775be2013237226e7bf47b248871cf865d23015937d1edeb20db5e3e760"),
MustHexID("17be6b6ba54199b1d80eff866d348ea11d8a4b341d63ad9a6681d3ef8a43853ac564d153eb2a8737f0afc9ab320f6f95c55aa11aaa13bbb1ff422fd16bdf8188"), hexEncPubkey("17be6b6ba54199b1d80eff866d348ea11d8a4b341d63ad9a6681d3ef8a43853ac564d153eb2a8737f0afc9ab320f6f95c55aa11aaa13bbb1ff422fd16bdf8188"),
}, },
}, },
} }
type preminedTestnet struct { type preminedTestnet struct {
target NodeID target encPubkey
targetSha common.Hash // sha3(target) targetSha enode.ID // sha3(target)
dists [hashBits + 1][]NodeID dists [hashBits + 1][]encPubkey
} }
func (tn *preminedTestnet) findnode(toid NodeID, toaddr *net.UDPAddr, target NodeID) ([]*Node, error) { func (tn *preminedTestnet) findnode(toid enode.ID, toaddr *net.UDPAddr, target encPubkey) ([]*node, error) {
// current log distance is encoded in port number // current log distance is encoded in port number
// fmt.Println("findnode query at dist", toaddr.Port) // fmt.Println("findnode query at dist", toaddr.Port)
if toaddr.Port == 0 { if toaddr.Port == 0 {
panic("query to node at distance 0") panic("query to node at distance 0")
} }
next := uint16(toaddr.Port) - 1 next := toaddr.Port - 1
var result []*Node var result []*node
for i, id := range tn.dists[toaddr.Port] { for i, ekey := range tn.dists[toaddr.Port] {
result = append(result, NewNode(id, net.ParseIP("127.0.0.1"), next, uint16(i))) key, _ := decodePubkey(ekey)
node := wrapNode(enode.NewV4(key, net.ParseIP("127.0.0.1"), i, next))
result = append(result, node)
} }
return result, nil return result, nil
} }
func (*preminedTestnet) close() {} func (*preminedTestnet) close() {}
func (*preminedTestnet) waitping(from NodeID) error { return nil } func (*preminedTestnet) waitping(from enode.ID) error { return nil }
func (*preminedTestnet) ping(toid NodeID, toaddr *net.UDPAddr) error { return nil } func (*preminedTestnet) ping(toid enode.ID, toaddr *net.UDPAddr) error { return nil }
// mine generates a testnet struct literal with nodes at // mine generates a testnet struct literal with nodes at
// various distances to the given target. // various distances to the given target.
func (tn *preminedTestnet) mine(target NodeID) { func (tn *preminedTestnet) mine(target encPubkey) {
tn.target = target tn.target = target
tn.targetSha = crypto.Keccak256Hash(tn.target[:]) tn.targetSha = tn.target.id()
found := 0 found := 0
for found < bucketSize*10 { for found < bucketSize*10 {
k := newkey() k := newkey()
id := PubkeyID(&k.PublicKey) key := encodePubkey(&k.PublicKey)
sha := crypto.Keccak256Hash(id[:]) ld := enode.LogDist(tn.targetSha, key.id())
ld := logdist(tn.targetSha, sha)
if len(tn.dists[ld]) < bucketSize { if len(tn.dists[ld]) < bucketSize {
tn.dists[ld] = append(tn.dists[ld], id) tn.dists[ld] = append(tn.dists[ld], key)
fmt.Println("found ID with ld", ld) fmt.Println("found ID with ld", ld)
found++ found++
} }
@ -594,14 +549,14 @@ func (tn *preminedTestnet) mine(target NodeID) {
fmt.Println("&preminedTestnet{") fmt.Println("&preminedTestnet{")
fmt.Printf(" target: %#v,\n", tn.target) fmt.Printf(" target: %#v,\n", tn.target)
fmt.Printf(" targetSha: %#v,\n", tn.targetSha) fmt.Printf(" targetSha: %#v,\n", tn.targetSha)
fmt.Printf(" dists: [%d][]NodeID{\n", len(tn.dists)) fmt.Printf(" dists: [%d][]encPubkey{\n", len(tn.dists))
for ld, ns := range tn.dists { for ld, ns := range tn.dists {
if len(ns) == 0 { if len(ns) == 0 {
continue continue
} }
fmt.Printf(" %d: []NodeID{\n", ld) fmt.Printf(" %d: []encPubkey{\n", ld)
for _, n := range ns { for _, n := range ns {
fmt.Printf(" MustHexID(\"%x\"),\n", n[:]) fmt.Printf(" hexEncPubkey(\"%x\"),\n", n[:])
} }
fmt.Println(" },") fmt.Println(" },")
} }
@ -609,40 +564,6 @@ func (tn *preminedTestnet) mine(target NodeID) {
fmt.Println("}") fmt.Println("}")
} }
func hasDuplicates(slice []*Node) bool {
seen := make(map[NodeID]bool)
for i, e := range slice {
if e == nil {
panic(fmt.Sprintf("nil *Node at %d", i))
}
if seen[e.ID] {
return true
}
seen[e.ID] = true
}
return false
}
func sortedByDistanceTo(distbase common.Hash, slice []*Node) bool {
var last common.Hash
for i, e := range slice {
if i > 0 && distcmp(distbase, e.sha, last) < 0 {
return false
}
last = e.sha
}
return true
}
func contains(ns []*Node, id NodeID) bool {
for _, n := range ns {
if n.ID == id {
return true
}
}
return false
}
// gen wraps quick.Value so it's easier to use. // gen wraps quick.Value so it's easier to use.
// it generates a random value of the given value's type. // it generates a random value of the given value's type.
func gen(typ interface{}, rand *rand.Rand) interface{} { func gen(typ interface{}, rand *rand.Rand) interface{} {
@ -653,6 +574,13 @@ func gen(typ interface{}, rand *rand.Rand) interface{} {
return v.Interface() return v.Interface()
} }
func quickcfg() *quick.Config {
return &quick.Config{
MaxCount: 5000,
Rand: rand.New(rand.NewSource(time.Now().Unix())),
}
}
func newkey() *ecdsa.PrivateKey { func newkey() *ecdsa.PrivateKey {
key, err := crypto.GenerateKey() key, err := crypto.GenerateKey()
if err != nil { if err != nil {

167
p2p/discover/table_util_test.go Normal file
View file

@ -0,0 +1,167 @@
// Copyright 2015 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 discover
import (
"crypto/ecdsa"
"encoding/hex"
"fmt"
"math/rand"
"net"
"sync"
"github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/p2p/enr"
)
func newTestTable(t transport) (*Table, *enode.DB) {
var r enr.Record
r.Set(enr.IP{0, 0, 0, 0})
n := enode.SignNull(&r, enode.ID{})
db, _ := enode.OpenDB("")
tab, _ := newTable(t, n, db, nil)
return tab, db
}
// nodeAtDistance creates a node for which enode.LogDist(base, n.id) == ld.
func nodeAtDistance(base enode.ID, ld int, ip net.IP) *node {
var r enr.Record
r.Set(enr.IP(ip))
return wrapNode(enode.SignNull(&r, idAtDistance(base, ld)))
}
// idAtDistance returns a random hash such that enode.LogDist(a, b) == n
func idAtDistance(a enode.ID, n int) (b enode.ID) {
if n == 0 {
return a
}
// flip bit at position n, fill the rest with random bits
b = a
pos := len(a) - n/8 - 1
bit := byte(0x01) << (byte(n%8) - 1)
if bit == 0 {
pos++
bit = 0x80
}
b[pos] = a[pos]&^bit | ^a[pos]&bit // TODO: randomize end bits
for i := pos + 1; i < len(a); i++ {
b[i] = byte(rand.Intn(255))
}
return b
}
func intIP(i int) net.IP {
return net.IP{byte(i), 0, 2, byte(i)}
}
// fillBucket inserts nodes into the given bucket until it is full.
func fillBucket(tab *Table, n *node) (last *node) {
ld := enode.LogDist(tab.self.ID(), n.ID())
b := tab.bucket(n.ID())
for len(b.entries) < bucketSize {
b.entries = append(b.entries, nodeAtDistance(tab.self.ID(), ld, intIP(ld)))
}
return b.entries[bucketSize-1]
}
type pingRecorder struct {
mu sync.Mutex
dead, pinged map[enode.ID]bool
}
func newPingRecorder() *pingRecorder {
return &pingRecorder{
dead: make(map[enode.ID]bool),
pinged: make(map[enode.ID]bool),
}
}
func (t *pingRecorder) findnode(toid enode.ID, toaddr *net.UDPAddr, target encPubkey) ([]*node, error) {
return nil, nil
}
func (t *pingRecorder) waitping(from enode.ID) error {
return nil // remote always pings
}
func (t *pingRecorder) ping(toid enode.ID, toaddr *net.UDPAddr) error {
t.mu.Lock()
defer t.mu.Unlock()
t.pinged[toid] = true
if t.dead[toid] {
return errTimeout
} else {
return nil
}
}
func (t *pingRecorder) close() {}
func hasDuplicates(slice []*node) bool {
seen := make(map[enode.ID]bool)
for i, e := range slice {
if e == nil {
panic(fmt.Sprintf("nil *Node at %d", i))
}
if seen[e.ID()] {
return true
}
seen[e.ID()] = true
}
return false
}
func contains(ns []*node, id enode.ID) bool {
for _, n := range ns {
if n.ID() == id {
return true
}
}
return false
}
func sortedByDistanceTo(distbase enode.ID, slice []*node) bool {
var last enode.ID
for i, e := range slice {
if i > 0 && enode.DistCmp(distbase, e.ID(), last) < 0 {
return false
}
last = e.ID()
}
return true
}
func hexEncPubkey(h string) (ret encPubkey) {
b, err := hex.DecodeString(h)
if err != nil {
panic(err)
}
if len(b) != len(ret) {
panic("invalid length")
}
copy(ret[:], b)
return ret
}
func hexPubkey(h string) *ecdsa.PublicKey {
k, err := decodePubkey(hexEncPubkey(h))
if err != nil {
panic(err)
}
return k
}

118
p2p/discover/udp.go
View file

@ -27,6 +27,7 @@ import (
"github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/log" "github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/p2p/nat" "github.com/ethereum/go-ethereum/p2p/nat"
"github.com/ethereum/go-ethereum/p2p/netutil" "github.com/ethereum/go-ethereum/p2p/netutil"
"github.com/ethereum/go-ethereum/rlp" "github.com/ethereum/go-ethereum/rlp"
@ -48,6 +49,7 @@ var (
const ( const (
respTimeout = 500 * time.Millisecond respTimeout = 500 * time.Millisecond
expiration = 20 * time.Second expiration = 20 * time.Second
bondExpiration = 24 * time.Hour
ntpFailureThreshold = 32 // Continuous timeouts after which to check NTP ntpFailureThreshold = 32 // Continuous timeouts after which to check NTP
ntpWarningCooldown = 10 * time.Minute // Minimum amount of time to pass before repeating NTP warning ntpWarningCooldown = 10 * time.Minute // Minimum amount of time to pass before repeating NTP warning
@ -87,7 +89,7 @@ type (
// findnode is a query for nodes close to the given target. // findnode is a query for nodes close to the given target.
findnode struct { findnode struct {
Target NodeID // doesn't need to be an actual public key Target encPubkey
Expiration uint64 Expiration uint64
// Ignore additional fields (for forward compatibility). // Ignore additional fields (for forward compatibility).
Rest []rlp.RawValue `rlp:"tail"` Rest []rlp.RawValue `rlp:"tail"`
@ -105,7 +107,7 @@ type (
IP net.IP // len 4 for IPv4 or 16 for IPv6 IP net.IP // len 4 for IPv4 or 16 for IPv6
UDP uint16 // for discovery protocol UDP uint16 // for discovery protocol
TCP uint16 // for RLPx protocol TCP uint16 // for RLPx protocol
ID NodeID ID encPubkey
} }
rpcEndpoint struct { rpcEndpoint struct {
@ -123,7 +125,7 @@ func makeEndpoint(addr *net.UDPAddr, tcpPort uint16) rpcEndpoint {
return rpcEndpoint{IP: ip, UDP: uint16(addr.Port), TCP: tcpPort} return rpcEndpoint{IP: ip, UDP: uint16(addr.Port), TCP: tcpPort}
} }
func (t *udp) nodeFromRPC(sender *net.UDPAddr, rn rpcNode) (*Node, error) { func (t *udp) nodeFromRPC(sender *net.UDPAddr, rn rpcNode) (*node, error) {
if rn.UDP <= 1024 { if rn.UDP <= 1024 {
return nil, errors.New("low port") return nil, errors.New("low port")
} }
@ -133,17 +135,26 @@ func (t *udp) nodeFromRPC(sender *net.UDPAddr, rn rpcNode) (*Node, error) {
if t.netrestrict != nil && !t.netrestrict.Contains(rn.IP) { if t.netrestrict != nil && !t.netrestrict.Contains(rn.IP) {
return nil, errors.New("not contained in netrestrict whitelist") return nil, errors.New("not contained in netrestrict whitelist")
} }
n := NewNode(rn.ID, rn.IP, rn.UDP, rn.TCP) key, err := decodePubkey(rn.ID)
err := n.validateComplete() if err != nil {
return nil, err
}
n := wrapNode(enode.NewV4(key, rn.IP, int(rn.TCP), int(rn.UDP)))
err = n.ValidateComplete()
return n, err return n, err
} }
func nodeToRPC(n *Node) rpcNode { func nodeToRPC(n *node) rpcNode {
return rpcNode{ID: n.ID, IP: n.IP, UDP: n.UDP, TCP: n.TCP} var key ecdsa.PublicKey
var ekey encPubkey
if err := n.Load((*enode.Secp256k1)(&key)); err == nil {
ekey = encodePubkey(&key)
}
return rpcNode{ID: ekey, IP: n.IP(), UDP: uint16(n.UDP()), TCP: uint16(n.TCP())}
} }
type packet interface { type packet interface {
handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte) error handle(t *udp, from *net.UDPAddr, fromKey encPubkey, mac []byte) error
name() string name() string
} }
@ -181,7 +192,7 @@ type udp struct {
// to all the callback functions for that node. // to all the callback functions for that node.
type pending struct { type pending struct {
// these fields must match in the reply. // these fields must match in the reply.
from NodeID from enode.ID
ptype byte ptype byte
// time when the request must complete // time when the request must complete
@ -199,7 +210,7 @@ type pending struct {
} }
type reply struct { type reply struct {
from NodeID from enode.ID
ptype byte ptype byte
data interface{} data interface{}
// loop indicates whether there was // loop indicates whether there was
@ -222,7 +233,7 @@ type Config struct {
AnnounceAddr *net.UDPAddr // local address announced in the DHT AnnounceAddr *net.UDPAddr // local address announced in the DHT
NodeDBPath string // if set, the node database is stored at this filesystem location NodeDBPath string // if set, the node database is stored at this filesystem location
NetRestrict *netutil.Netlist // network whitelist NetRestrict *netutil.Netlist // network whitelist
Bootnodes []*Node // list of bootstrap nodes Bootnodes []*enode.Node // list of bootstrap nodes
Unhandled chan<- ReadPacket // unhandled packets are sent on this channel Unhandled chan<- ReadPacket // unhandled packets are sent on this channel
} }
@ -237,6 +248,16 @@ func ListenUDP(c conn, cfg Config) (*Table, error) {
} }
func newUDP(c conn, cfg Config) (*Table, *udp, error) { func newUDP(c conn, cfg Config) (*Table, *udp, error) {
realaddr := c.LocalAddr().(*net.UDPAddr)
if cfg.AnnounceAddr != nil {
realaddr = cfg.AnnounceAddr
}
self := enode.NewV4(&cfg.PrivateKey.PublicKey, realaddr.IP, realaddr.Port, realaddr.Port)
db, err := enode.OpenDB(cfg.NodeDBPath)
if err != nil {
return nil, nil, err
}
udp := &udp{ udp := &udp{
conn: c, conn: c,
priv: cfg.PrivateKey, priv: cfg.PrivateKey,
@ -245,13 +266,9 @@ func newUDP(c conn, cfg Config) (*Table, *udp, error) {
gotreply: make(chan reply), gotreply: make(chan reply),
addpending: make(chan *pending), addpending: make(chan *pending),
} }
realaddr := c.LocalAddr().(*net.UDPAddr)
if cfg.AnnounceAddr != nil {
realaddr = cfg.AnnounceAddr
}
// TODO: separate TCP port // TODO: separate TCP port
udp.ourEndpoint = makeEndpoint(realaddr, uint16(realaddr.Port)) udp.ourEndpoint = makeEndpoint(realaddr, uint16(realaddr.Port))
tab, err := newTable(udp, PubkeyID(&cfg.PrivateKey.PublicKey), realaddr, cfg.NodeDBPath, cfg.Bootnodes) tab, err := newTable(udp, self, db, cfg.Bootnodes)
if err != nil { if err != nil {
return nil, nil, err return nil, nil, err
} }
@ -265,17 +282,18 @@ func newUDP(c conn, cfg Config) (*Table, *udp, error) {
func (t *udp) close() { func (t *udp) close() {
close(t.closing) close(t.closing)
t.conn.Close() t.conn.Close()
t.db.Close()
// TODO: wait for the loops to end. // TODO: wait for the loops to end.
} }
// ping sends a ping message to the given node and waits for a reply. // ping sends a ping message to the given node and waits for a reply.
func (t *udp) ping(toid NodeID, toaddr *net.UDPAddr) error { func (t *udp) ping(toid enode.ID, toaddr *net.UDPAddr) error {
return <-t.sendPing(toid, toaddr, nil) return <-t.sendPing(toid, toaddr, nil)
} }
// sendPing sends a ping message to the given node and invokes the callback // sendPing sends a ping message to the given node and invokes the callback
// when the reply arrives. // when the reply arrives.
func (t *udp) sendPing(toid NodeID, toaddr *net.UDPAddr, callback func()) <-chan error { func (t *udp) sendPing(toid enode.ID, toaddr *net.UDPAddr, callback func()) <-chan error {
req := &ping{ req := &ping{
Version: 4, Version: 4,
From: t.ourEndpoint, From: t.ourEndpoint,
@ -299,21 +317,21 @@ func (t *udp) sendPing(toid NodeID, toaddr *net.UDPAddr, callback func()) <-chan
return errc return errc
} }
func (t *udp) waitping(from NodeID) error { func (t *udp) waitping(from enode.ID) error {
return <-t.pending(from, pingPacket, func(interface{}) bool { return true }) return <-t.pending(from, pingPacket, func(interface{}) bool { return true })
} }
// findnode sends a findnode request to the given node and waits until // findnode sends a findnode request to the given node and waits until
// the node has sent up to k neighbors. // the node has sent up to k neighbors.
func (t *udp) findnode(toid NodeID, toaddr *net.UDPAddr, target NodeID) ([]*Node, error) { func (t *udp) findnode(toid enode.ID, toaddr *net.UDPAddr, target encPubkey) ([]*node, error) {
// If we haven't seen a ping from the destination node for a while, it won't remember // If we haven't seen a ping from the destination node for a while, it won't remember
// our endpoint proof and reject findnode. Solicit a ping first. // our endpoint proof and reject findnode. Solicit a ping first.
if time.Since(t.db.lastPingReceived(toid)) > nodeDBNodeExpiration { if time.Since(t.db.LastPingReceived(toid)) > bondExpiration {
t.ping(toid, toaddr) t.ping(toid, toaddr)
t.waitping(toid) t.waitping(toid)
} }
nodes := make([]*Node, 0, bucketSize) nodes := make([]*node, 0, bucketSize)
nreceived := 0 nreceived := 0
errc := t.pending(toid, neighborsPacket, func(r interface{}) bool { errc := t.pending(toid, neighborsPacket, func(r interface{}) bool {
reply := r.(*neighbors) reply := r.(*neighbors)
@ -337,7 +355,7 @@ func (t *udp) findnode(toid NodeID, toaddr *net.UDPAddr, target NodeID) ([]*Node
// pending adds a reply callback to the pending reply queue. // pending adds a reply callback to the pending reply queue.
// see the documentation of type pending for a detailed explanation. // see the documentation of type pending for a detailed explanation.
func (t *udp) pending(id NodeID, ptype byte, callback func(interface{}) bool) <-chan error { func (t *udp) pending(id enode.ID, ptype byte, callback func(interface{}) bool) <-chan error {
ch := make(chan error, 1) ch := make(chan error, 1)
p := &pending{from: id, ptype: ptype, callback: callback, errc: ch} p := &pending{from: id, ptype: ptype, callback: callback, errc: ch}
select { select {
@ -349,7 +367,7 @@ func (t *udp) pending(id NodeID, ptype byte, callback func(interface{}) bool) <-
return ch return ch
} }
func (t *udp) handleReply(from NodeID, ptype byte, req packet) bool { func (t *udp) handleReply(from enode.ID, ptype byte, req packet) bool {
matched := make(chan bool, 1) matched := make(chan bool, 1)
select { select {
case t.gotreply <- reply{from, ptype, req, matched}: case t.gotreply <- reply{from, ptype, req, matched}:
@ -563,19 +581,20 @@ func (t *udp) handlePacket(from *net.UDPAddr, buf []byte) error {
return err return err
} }
func decodePacket(buf []byte) (packet, NodeID, []byte, error) { func decodePacket(buf []byte) (packet, encPubkey, []byte, error) {
if len(buf) < headSize+1 { if len(buf) < headSize+1 {
return nil, NodeID{}, nil, errPacketTooSmall return nil, encPubkey{}, nil, errPacketTooSmall
} }
hash, sig, sigdata := buf[:macSize], buf[macSize:headSize], buf[headSize:] hash, sig, sigdata := buf[:macSize], buf[macSize:headSize], buf[headSize:]
shouldhash := crypto.Keccak256(buf[macSize:]) shouldhash := crypto.Keccak256(buf[macSize:])
if !bytes.Equal(hash, shouldhash) { if !bytes.Equal(hash, shouldhash) {
return nil, NodeID{}, nil, errBadHash return nil, encPubkey{}, nil, errBadHash
} }
fromID, err := recoverNodeID(crypto.Keccak256(buf[headSize:]), sig) fromKey, err := recoverNodeKey(crypto.Keccak256(buf[headSize:]), sig)
if err != nil { if err != nil {
return nil, NodeID{}, hash, err return nil, fromKey, hash, err
} }
var req packet var req packet
switch ptype := sigdata[0]; ptype { switch ptype := sigdata[0]; ptype {
case pingPacket: case pingPacket:
@ -587,56 +606,59 @@ func decodePacket(buf []byte) (packet, NodeID, []byte, error) {
case neighborsPacket: case neighborsPacket:
req = new(neighbors) req = new(neighbors)
default: default:
return nil, fromID, hash, fmt.Errorf("unknown type: %d", ptype) return nil, fromKey, hash, fmt.Errorf("unknown type: %d", ptype)
} }
s := rlp.NewStream(bytes.NewReader(sigdata[1:]), 0) s := rlp.NewStream(bytes.NewReader(sigdata[1:]), 0)
err = s.Decode(req) err = s.Decode(req)
return req, fromID, hash, err return req, fromKey, hash, err
} }
func (req *ping) handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte) error { func (req *ping) handle(t *udp, from *net.UDPAddr, fromKey encPubkey, mac []byte) error {
if expired(req.Expiration) { if expired(req.Expiration) {
return errExpired return errExpired
} }
key, err := decodePubkey(fromKey)
if err != nil {
return fmt.Errorf("invalid public key: %v", err)
}
t.send(from, pongPacket, &pong{ t.send(from, pongPacket, &pong{
To: makeEndpoint(from, req.From.TCP), To: makeEndpoint(from, req.From.TCP),
ReplyTok: mac, ReplyTok: mac,
Expiration: uint64(time.Now().Add(expiration).Unix()), Expiration: uint64(time.Now().Add(expiration).Unix()),
}) })
t.handleReply(fromID, pingPacket, req) n := wrapNode(enode.NewV4(key, from.IP, int(req.From.TCP), from.Port))
t.handleReply(n.ID(), pingPacket, req)
// Add the node to the table. Before doing so, ensure that we have a recent enough pong if time.Since(t.db.LastPongReceived(n.ID())) > bondExpiration {
// recorded in the database so their findnode requests will be accepted later. t.sendPing(n.ID(), from, func() { t.addThroughPing(n) })
n := NewNode(fromID, from.IP, uint16(from.Port), req.From.TCP)
if time.Since(t.db.lastPongReceived(fromID)) > nodeDBNodeExpiration {
t.sendPing(fromID, from, func() { t.addThroughPing(n) })
} else { } else {
t.addThroughPing(n) t.addThroughPing(n)
} }
t.db.updateLastPingReceived(fromID, time.Now()) t.db.UpdateLastPingReceived(n.ID(), time.Now())
return nil return nil
} }
func (req *ping) name() string { return "PING/v4" } func (req *ping) name() string { return "PING/v4" }
func (req *pong) handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte) error { func (req *pong) handle(t *udp, from *net.UDPAddr, fromKey encPubkey, mac []byte) error {
if expired(req.Expiration) { if expired(req.Expiration) {
return errExpired return errExpired
} }
fromID := fromKey.id()
if !t.handleReply(fromID, pongPacket, req) { if !t.handleReply(fromID, pongPacket, req) {
return errUnsolicitedReply return errUnsolicitedReply
} }
t.db.updateLastPongReceived(fromID, time.Now()) t.db.UpdateLastPongReceived(fromID, time.Now())
return nil return nil
} }
func (req *pong) name() string { return "PONG/v4" } func (req *pong) name() string { return "PONG/v4" }
func (req *findnode) handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte) error { func (req *findnode) handle(t *udp, from *net.UDPAddr, fromKey encPubkey, mac []byte) error {
if expired(req.Expiration) { if expired(req.Expiration) {
return errExpired return errExpired
} }
if !t.db.hasBond(fromID) { fromID := fromKey.id()
if time.Since(t.db.LastPongReceived(fromID)) > bondExpiration {
// No endpoint proof pong exists, we don't process the packet. This prevents an // No endpoint proof pong exists, we don't process the packet. This prevents an
// attack vector where the discovery protocol could be used to amplify traffic in a // attack vector where the discovery protocol could be used to amplify traffic in a
// DDOS attack. A malicious actor would send a findnode request with the IP address // DDOS attack. A malicious actor would send a findnode request with the IP address
@ -645,7 +667,7 @@ func (req *findnode) handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte
// findnode) to the victim. // findnode) to the victim.
return errUnknownNode return errUnknownNode
} }
target := crypto.Keccak256Hash(req.Target[:]) target := enode.ID(crypto.Keccak256Hash(req.Target[:]))
t.mutex.Lock() t.mutex.Lock()
closest := t.closest(target, bucketSize).entries closest := t.closest(target, bucketSize).entries
t.mutex.Unlock() t.mutex.Unlock()
@ -655,7 +677,7 @@ func (req *findnode) handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte
// Send neighbors in chunks with at most maxNeighbors per packet // Send neighbors in chunks with at most maxNeighbors per packet
// to stay below the 1280 byte limit. // to stay below the 1280 byte limit.
for _, n := range closest { for _, n := range closest {
if netutil.CheckRelayIP(from.IP, n.IP) == nil { if netutil.CheckRelayIP(from.IP, n.IP()) == nil {
p.Nodes = append(p.Nodes, nodeToRPC(n)) p.Nodes = append(p.Nodes, nodeToRPC(n))
} }
if len(p.Nodes) == maxNeighbors { if len(p.Nodes) == maxNeighbors {
@ -672,11 +694,11 @@ func (req *findnode) handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte
func (req *findnode) name() string { return "FINDNODE/v4" } func (req *findnode) name() string { return "FINDNODE/v4" }
func (req *neighbors) handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte) error { func (req *neighbors) handle(t *udp, from *net.UDPAddr, fromKey encPubkey, mac []byte) error {
if expired(req.Expiration) { if expired(req.Expiration) {
return errExpired return errExpired
} }
if !t.handleReply(fromID, neighborsPacket, req) { if !t.handleReply(fromKey.id(), neighborsPacket, req) {
return errUnsolicitedReply return errUnsolicitedReply
} }
return nil return nil

82
p2p/discover/udp_test.go
View file

@ -36,6 +36,7 @@ import (
"github.com/davecgh/go-spew/spew" "github.com/davecgh/go-spew/spew"
"github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/rlp" "github.com/ethereum/go-ethereum/rlp"
) )
@ -46,7 +47,7 @@ func init() {
// shared test variables // shared test variables
var ( var (
futureExp = uint64(time.Now().Add(10 * time.Hour).Unix()) futureExp = uint64(time.Now().Add(10 * time.Hour).Unix())
testTarget = NodeID{0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1} testTarget = encPubkey{0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1}
testRemote = rpcEndpoint{IP: net.ParseIP("1.1.1.1").To4(), UDP: 1, TCP: 2} testRemote = rpcEndpoint{IP: net.ParseIP("1.1.1.1").To4(), UDP: 1, TCP: 2}
testLocalAnnounced = rpcEndpoint{IP: net.ParseIP("2.2.2.2").To4(), UDP: 3, TCP: 4} testLocalAnnounced = rpcEndpoint{IP: net.ParseIP("2.2.2.2").To4(), UDP: 3, TCP: 4}
testLocal = rpcEndpoint{IP: net.ParseIP("3.3.3.3").To4(), UDP: 5, TCP: 6} testLocal = rpcEndpoint{IP: net.ParseIP("3.3.3.3").To4(), UDP: 5, TCP: 6}
@ -136,7 +137,7 @@ func TestUDP_pingTimeout(t *testing.T) {
defer test.table.Close() defer test.table.Close()
toaddr := &net.UDPAddr{IP: net.ParseIP("1.2.3.4"), Port: 2222} toaddr := &net.UDPAddr{IP: net.ParseIP("1.2.3.4"), Port: 2222}
toid := NodeID{1, 2, 3, 4} toid := enode.ID{1, 2, 3, 4}
if err := test.udp.ping(toid, toaddr); err != errTimeout { if err := test.udp.ping(toid, toaddr); err != errTimeout {
t.Error("expected timeout error, got", err) t.Error("expected timeout error, got", err)
} }
@ -220,8 +221,8 @@ func TestUDP_findnodeTimeout(t *testing.T) {
defer test.table.Close() defer test.table.Close()
toaddr := &net.UDPAddr{IP: net.ParseIP("1.2.3.4"), Port: 2222} toaddr := &net.UDPAddr{IP: net.ParseIP("1.2.3.4"), Port: 2222}
toid := NodeID{1, 2, 3, 4} toid := enode.ID{1, 2, 3, 4}
target := NodeID{4, 5, 6, 7} target := encPubkey{4, 5, 6, 7}
result, err := test.udp.findnode(toid, toaddr, target) result, err := test.udp.findnode(toid, toaddr, target)
if err != errTimeout { if err != errTimeout {
t.Error("expected timeout error, got", err) t.Error("expected timeout error, got", err)
@ -238,28 +239,30 @@ func TestUDP_findnode(t *testing.T) {
// put a few nodes into the table. their exact // put a few nodes into the table. their exact
// distribution shouldn't matter much, although we need to // distribution shouldn't matter much, although we need to
// take care not to overflow any bucket. // take care not to overflow any bucket.
targetHash := crypto.Keccak256Hash(testTarget[:]) nodes := &nodesByDistance{target: testTarget.id()}
nodes := &nodesByDistance{target: targetHash}
for i := 0; i < bucketSize; i++ { for i := 0; i < bucketSize; i++ {
nodes.push(nodeAtDistance(test.table.self.sha, i+2), bucketSize) key := newkey()
n := wrapNode(enode.NewV4(&key.PublicKey, net.IP{10, 13, 0, 1}, 0, i))
nodes.push(n, bucketSize)
} }
test.table.stuff(nodes.entries) test.table.stuff(nodes.entries)
// ensure there's a bond with the test node, // ensure there's a bond with the test node,
// findnode won't be accepted otherwise. // findnode won't be accepted otherwise.
test.table.db.updateLastPongReceived(PubkeyID(&test.remotekey.PublicKey), time.Now()) remoteID := encodePubkey(&test.remotekey.PublicKey).id()
test.table.db.UpdateLastPongReceived(remoteID, time.Now())
// check that closest neighbors are returned. // check that closest neighbors are returned.
test.packetIn(nil, findnodePacket, &findnode{Target: testTarget, Expiration: futureExp}) test.packetIn(nil, findnodePacket, &findnode{Target: testTarget, Expiration: futureExp})
expected := test.table.closest(targetHash, bucketSize) expected := test.table.closest(testTarget.id(), bucketSize)
waitNeighbors := func(want []*Node) { waitNeighbors := func(want []*node) {
test.waitPacketOut(func(p *neighbors) { test.waitPacketOut(func(p *neighbors) {
if len(p.Nodes) != len(want) { if len(p.Nodes) != len(want) {
t.Errorf("wrong number of results: got %d, want %d", len(p.Nodes), bucketSize) t.Errorf("wrong number of results: got %d, want %d", len(p.Nodes), bucketSize)
} }
for i := range p.Nodes { for i := range p.Nodes {
if p.Nodes[i].ID != want[i].ID { if p.Nodes[i].ID.id() != want[i].ID() {
t.Errorf("result mismatch at %d:\n got: %v\n want: %v", i, p.Nodes[i], expected.entries[i]) t.Errorf("result mismatch at %d:\n got: %v\n want: %v", i, p.Nodes[i], expected.entries[i])
} }
} }
@ -273,12 +276,13 @@ func TestUDP_findnodeMultiReply(t *testing.T) {
test := newUDPTest(t) test := newUDPTest(t)
defer test.table.Close() defer test.table.Close()
rid := PubkeyID(&test.remotekey.PublicKey) rid := enode.PubkeyToIDV4(&test.remotekey.PublicKey)
test.table.db.updateLastPingReceived(rid, time.Now()) test.table.db.UpdateLastPingReceived(rid, time.Now())
// queue a pending findnode request // queue a pending findnode request
resultc, errc := make(chan []*Node), make(chan error) resultc, errc := make(chan []*node), make(chan error)
go func() { go func() {
rid := encodePubkey(&test.remotekey.PublicKey).id()
ns, err := test.udp.findnode(rid, test.remoteaddr, testTarget) ns, err := test.udp.findnode(rid, test.remoteaddr, testTarget)
if err != nil && len(ns) == 0 { if err != nil && len(ns) == 0 {
errc <- err errc <- err
@ -296,11 +300,11 @@ func TestUDP_findnodeMultiReply(t *testing.T) {
}) })
// send the reply as two packets. // send the reply as two packets.
list := []*Node{ list := []*node{
MustParseNode("enode://ba85011c70bcc5c04d8607d3a0ed29aa6179c092cbdda10d5d32684fb33ed01bd94f588ca8f91ac48318087dcb02eaf36773a7a453f0eedd6742af668097b29c@10.0.1.16:30303?discport=30304"), wrapNode(enode.MustParseV4("enode://ba85011c70bcc5c04d8607d3a0ed29aa6179c092cbdda10d5d32684fb33ed01bd94f588ca8f91ac48318087dcb02eaf36773a7a453f0eedd6742af668097b29c@10.0.1.16:30303?discport=30304")),
MustParseNode("enode://81fa361d25f157cd421c60dcc28d8dac5ef6a89476633339c5df30287474520caca09627da18543d9079b5b288698b542d56167aa5c09111e55acdbbdf2ef799@10.0.1.16:30303"), wrapNode(enode.MustParseV4("enode://81fa361d25f157cd421c60dcc28d8dac5ef6a89476633339c5df30287474520caca09627da18543d9079b5b288698b542d56167aa5c09111e55acdbbdf2ef799@10.0.1.16:30303")),
MustParseNode("enode://9bffefd833d53fac8e652415f4973bee289e8b1a5c6c4cbe70abf817ce8a64cee11b823b66a987f51aaa9fba0d6a91b3e6bf0d5a5d1042de8e9eeea057b217f8@10.0.1.36:30301?discport=17"), wrapNode(enode.MustParseV4("enode://9bffefd833d53fac8e652415f4973bee289e8b1a5c6c4cbe70abf817ce8a64cee11b823b66a987f51aaa9fba0d6a91b3e6bf0d5a5d1042de8e9eeea057b217f8@10.0.1.36:30301?discport=17")),
MustParseNode("enode://1b5b4aa662d7cb44a7221bfba67302590b643028197a7d5214790f3bac7aaa4a3241be9e83c09cf1f6c69d007c634faae3dc1b1221793e8446c0b3a09de65960@10.0.1.16:30303"), wrapNode(enode.MustParseV4("enode://1b5b4aa662d7cb44a7221bfba67302590b643028197a7d5214790f3bac7aaa4a3241be9e83c09cf1f6c69d007c634faae3dc1b1221793e8446c0b3a09de65960@10.0.1.16:30303")),
} }
rpclist := make([]rpcNode, len(list)) rpclist := make([]rpcNode, len(list))
for i := range list { for i := range list {
@ -325,8 +329,8 @@ func TestUDP_findnodeMultiReply(t *testing.T) {
func TestUDP_successfulPing(t *testing.T) { func TestUDP_successfulPing(t *testing.T) {
test := newUDPTest(t) test := newUDPTest(t)
added := make(chan *Node, 1) added := make(chan *node, 1)
test.table.nodeAddedHook = func(n *Node) { added <- n } test.table.nodeAddedHook = func(n *node) { added <- n }
defer test.table.Close() defer test.table.Close()
// The remote side sends a ping packet to initiate the exchange. // The remote side sends a ping packet to initiate the exchange.
@ -370,18 +374,18 @@ func TestUDP_successfulPing(t *testing.T) {
// pong packet. // pong packet.
select { select {
case n := <-added: case n := <-added:
rid := PubkeyID(&test.remotekey.PublicKey) rid := encodePubkey(&test.remotekey.PublicKey).id()
if n.ID != rid { if n.ID() != rid {
t.Errorf("node has wrong ID: got %v, want %v", n.ID, rid) t.Errorf("node has wrong ID: got %v, want %v", n.ID(), rid)
} }
if !n.IP.Equal(test.remoteaddr.IP) { if !n.IP().Equal(test.remoteaddr.IP) {
t.Errorf("node has wrong IP: got %v, want: %v", 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 { if int(n.UDP()) != test.remoteaddr.Port {
t.Errorf("node has wrong UDP port: got %v, want: %v", 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 { if n.TCP() != int(testRemote.TCP) {
t.Errorf("node has wrong TCP port: got %v, want: %v", 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): case <-time.After(2 * time.Second):
t.Errorf("node was not added within 2 seconds") t.Errorf("node was not added within 2 seconds")
@ -434,7 +438,7 @@ var testPackets = []struct {
{ {
input: "c7c44041b9f7c7e41934417ebac9a8e1a4c6298f74553f2fcfdcae6ed6fe53163eb3d2b52e39fe91831b8a927bf4fc222c3902202027e5e9eb812195f95d20061ef5cd31d502e47ecb61183f74a504fe04c51e73df81f25c4d506b26db4517490103f84eb840ca634cae0d49acb401d8a4c6b6fe8c55b70d115bf400769cc1400f3258cd31387574077f301b421bc84df7266c44e9e6d569fc56be00812904767bf5ccd1fc7f8443b9a35582999983999999280dc62cc8255c73471e0a61da0c89acdc0e035e260add7fc0c04ad9ebf3919644c91cb247affc82b69bd2ca235c71eab8e49737c937a2c396", input: "c7c44041b9f7c7e41934417ebac9a8e1a4c6298f74553f2fcfdcae6ed6fe53163eb3d2b52e39fe91831b8a927bf4fc222c3902202027e5e9eb812195f95d20061ef5cd31d502e47ecb61183f74a504fe04c51e73df81f25c4d506b26db4517490103f84eb840ca634cae0d49acb401d8a4c6b6fe8c55b70d115bf400769cc1400f3258cd31387574077f301b421bc84df7266c44e9e6d569fc56be00812904767bf5ccd1fc7f8443b9a35582999983999999280dc62cc8255c73471e0a61da0c89acdc0e035e260add7fc0c04ad9ebf3919644c91cb247affc82b69bd2ca235c71eab8e49737c937a2c396",
wantPacket: &findnode{ wantPacket: &findnode{
Target: MustHexID("ca634cae0d49acb401d8a4c6b6fe8c55b70d115bf400769cc1400f3258cd31387574077f301b421bc84df7266c44e9e6d569fc56be00812904767bf5ccd1fc7f"), Target: hexEncPubkey("ca634cae0d49acb401d8a4c6b6fe8c55b70d115bf400769cc1400f3258cd31387574077f301b421bc84df7266c44e9e6d569fc56be00812904767bf5ccd1fc7f"),
Expiration: 1136239445, Expiration: 1136239445,
Rest: []rlp.RawValue{{0x82, 0x99, 0x99}, {0x83, 0x99, 0x99, 0x99}}, Rest: []rlp.RawValue{{0x82, 0x99, 0x99}, {0x83, 0x99, 0x99, 0x99}},
}, },
@ -444,25 +448,25 @@ var testPackets = []struct {
wantPacket: &neighbors{ wantPacket: &neighbors{
Nodes: []rpcNode{ Nodes: []rpcNode{
{ {
ID: MustHexID("3155e1427f85f10a5c9a7755877748041af1bcd8d474ec065eb33df57a97babf54bfd2103575fa829115d224c523596b401065a97f74010610fce76382c0bf32"), ID: hexEncPubkey("3155e1427f85f10a5c9a7755877748041af1bcd8d474ec065eb33df57a97babf54bfd2103575fa829115d224c523596b401065a97f74010610fce76382c0bf32"),
IP: net.ParseIP("99.33.22.55").To4(), IP: net.ParseIP("99.33.22.55").To4(),
UDP: 4444, UDP: 4444,
TCP: 4445, TCP: 4445,
}, },
{ {
ID: MustHexID("312c55512422cf9b8a4097e9a6ad79402e87a15ae909a4bfefa22398f03d20951933beea1e4dfa6f968212385e829f04c2d314fc2d4e255e0d3bc08792b069db"), ID: hexEncPubkey("312c55512422cf9b8a4097e9a6ad79402e87a15ae909a4bfefa22398f03d20951933beea1e4dfa6f968212385e829f04c2d314fc2d4e255e0d3bc08792b069db"),
IP: net.ParseIP("1.2.3.4").To4(), IP: net.ParseIP("1.2.3.4").To4(),
UDP: 1, UDP: 1,
TCP: 1, TCP: 1,
}, },
{ {
ID: MustHexID("38643200b172dcfef857492156971f0e6aa2c538d8b74010f8e140811d53b98c765dd2d96126051913f44582e8c199ad7c6d6819e9a56483f637feaac9448aac"), ID: hexEncPubkey("38643200b172dcfef857492156971f0e6aa2c538d8b74010f8e140811d53b98c765dd2d96126051913f44582e8c199ad7c6d6819e9a56483f637feaac9448aac"),
IP: net.ParseIP("2001:db8:3c4d:15::abcd:ef12"), IP: net.ParseIP("2001:db8:3c4d:15::abcd:ef12"),
UDP: 3333, UDP: 3333,
TCP: 3333, TCP: 3333,
}, },
{ {
ID: MustHexID("8dcab8618c3253b558d459da53bd8fa68935a719aff8b811197101a4b2b47dd2d47295286fc00cc081bb542d760717d1bdd6bec2c37cd72eca367d6dd3b9df73"), ID: hexEncPubkey("8dcab8618c3253b558d459da53bd8fa68935a719aff8b811197101a4b2b47dd2d47295286fc00cc081bb542d760717d1bdd6bec2c37cd72eca367d6dd3b9df73"),
IP: net.ParseIP("2001:db8:85a3:8d3:1319:8a2e:370:7348"), IP: net.ParseIP("2001:db8:85a3:8d3:1319:8a2e:370:7348"),
UDP: 999, UDP: 999,
TCP: 1000, TCP: 1000,
@ -476,14 +480,14 @@ var testPackets = []struct {
func TestForwardCompatibility(t *testing.T) { func TestForwardCompatibility(t *testing.T) {
testkey, _ := crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291") testkey, _ := crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
wantNodeID := PubkeyID(&testkey.PublicKey) wantNodeKey := encodePubkey(&testkey.PublicKey)
for _, test := range testPackets { for _, test := range testPackets {
input, err := hex.DecodeString(test.input) input, err := hex.DecodeString(test.input)
if err != nil { if err != nil {
t.Fatalf("invalid hex: %s", test.input) t.Fatalf("invalid hex: %s", test.input)
} }
packet, nodeid, _, err := decodePacket(input) packet, nodekey, _, err := decodePacket(input)
if err != nil { if err != nil {
t.Errorf("did not accept packet %s\n%v", test.input, err) t.Errorf("did not accept packet %s\n%v", test.input, err)
continue continue
@ -491,8 +495,8 @@ func TestForwardCompatibility(t *testing.T) {
if !reflect.DeepEqual(packet, test.wantPacket) { if !reflect.DeepEqual(packet, test.wantPacket) {
t.Errorf("got %s\nwant %s", spew.Sdump(packet), spew.Sdump(test.wantPacket)) t.Errorf("got %s\nwant %s", spew.Sdump(packet), spew.Sdump(test.wantPacket))
} }
if nodeid != wantNodeID { if nodekey != wantNodeKey {
t.Errorf("got id %v\nwant id %v", nodeid, wantNodeID) t.Errorf("got id %v\nwant id %v", nodekey, wantNodeKey)
} }
} }
} }