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swarm/network: rewrite of peer suggestion engine, fix skipped tests (#18404)

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* swarm/network: fix skipped tests related to suggestPeer

* swarm/network: rename depth to radius

* swarm/network: uncomment assertHealth and improve comments

* swarm/network: remove commented code

* swarm/network: kademlia suggestPeer algo correction

* swarm/network: kademlia suggest peer

 * simplify suggest Peer code
 * improve peer suggestion algo
 * add comments
 * kademlia testing improvements
   * assertHealth -> checkHealth (test helper)
   * testSuggestPeer -> checkSuggestPeer (test helper)
   * remove testSuggestPeerBug and TestKademliaCase

* swarm/network: kademlia suggestPeer cleanup, improved comments

* swarm/network: minor comment, discovery test default arg
pull/18469/head
Viktor Trón 6 years ago committed by GitHub
parent 34f11e752f
commit bcb2594151
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3 changed files with 287 additions and 667 deletions
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  1. 220
      swarm/network/kademlia.go
  2. 722
      swarm/network/kademlia_test.go
  3. 12
      swarm/network/simulations/discovery/discovery_test.go

220
swarm/network/kademlia.go
Unescape View File

@ -168,85 +168,118 @@ func (k *Kademlia) Register(peers ...*BzzAddr) error {
return nil
}
// SuggestPeer returns a known peer for the lowest proximity bin for the
// lowest bincount below depth
// naturally if there is an empty row it returns a peer for that
func (k *Kademlia) SuggestPeer() (a *BzzAddr, o int, want bool) {
// SuggestPeer returns an unconnected peer address as a peer suggestion for connection
func (k *Kademlia) SuggestPeer() (suggestedPeer *BzzAddr, saturationDepth int, changed bool) {
k.lock.Lock()
defer k.lock.Unlock()
minsize := k.MinBinSize
depth := depthForPot(k.conns, k.NeighbourhoodSize, k.base)
// if there is a callable neighbour within the current proxBin, connect
// this makes sure nearest neighbour set is fully connected
var ppo int
k.addrs.EachNeighbour(k.base, Pof, func(val pot.Val, po int) bool {
if po < depth {
return false
radius := neighbourhoodRadiusForPot(k.conns, k.NeighbourhoodSize, k.base)
// collect undersaturated bins in ascending order of number of connected peers
// and from shallow to deep (ascending order of PO)
// insert them in a map of bin arrays, keyed with the number of connected peers
saturation := make(map[int][]int)
var lastPO int // the last non-empty PO bin in the iteration
saturationDepth = -1 // the deepest PO such that all shallower bins have >= k.MinBinSize peers
var pastDepth bool // whether po of iteration >= depth
k.conns.EachBin(k.base, Pof, 0, func(po, size int, f func(func(val pot.Val) bool) bool) bool {
// process skipped empty bins
for ; lastPO < po; lastPO++ {
// find the lowest unsaturated bin
if saturationDepth == -1 {
saturationDepth = lastPO
}
// if there is an empty bin, depth is surely passed
pastDepth = true
saturation[0] = append(saturation[0], lastPO)
}
e := val.(*entry)
c := k.callable(e)
if c {
a = e.BzzAddr
lastPO = po + 1
// past radius, depth is surely passed
if po >= radius {
pastDepth = true
}
ppo = po
return !c
})
if a != nil {
log.Trace(fmt.Sprintf("%08x candidate nearest neighbour found: %v (%v)", k.BaseAddr()[:4], a, ppo))
return a, 0, false
}
var bpo []int
prev := -1
k.conns.EachBin(k.base, Pof, 0, func(po, size int, f func(func(val pot.Val) bool) bool) bool {
prev++
for ; prev < po; prev++ {
bpo = append(bpo, prev)
minsize = 0
// beyond depth the bin is treated as unsaturated even if size >= k.MinBinSize
// in order to achieve full connectivity to all neighbours
if pastDepth && size >= k.MinBinSize {
size = k.MinBinSize - 1
}
if size < minsize {
bpo = append(bpo, po)
minsize = size
// process non-empty unsaturated bins
if size < k.MinBinSize {
// find the lowest unsaturated bin
if saturationDepth == -1 {
saturationDepth = po
}
saturation[size] = append(saturation[size], po)
}
return size > 0 && po < depth
return true
})
// to trigger peer requests for peers closer than closest connection, include
// all bins from nearest connection upto nearest address as unsaturated
var nearestAddrAt int
k.addrs.EachNeighbour(k.base, Pof, func(_ pot.Val, po int) bool {
nearestAddrAt = po
return false
})
// all buckets are full, ie., minsize == k.MinBinSize
if len(bpo) == 0 {
// including bins as size 0 has the effect that requesting connection
// is prioritised over non-empty shallower bins
for ; lastPO <= nearestAddrAt; lastPO++ {
saturation[0] = append(saturation[0], lastPO)
}
// all PO bins are saturated, ie., minsize >= k.MinBinSize, no peer suggested
if len(saturation) == 0 {
return nil, 0, false
}
// as long as we got candidate peers to connect to
// dont ask for new peers (want = false)
// try to select a candidate peer
// find the first callable peer
nxt := bpo[0]
k.addrs.EachBin(k.base, Pof, nxt, func(po, _ int, f func(func(pot.Val) bool) bool) bool {
// for each bin (up until depth) we find callable candidate peers
if po >= depth {
return false
// find the first callable peer in the address book
// starting from the bins with smallest size proceeding from shallow to deep
// for each bin (up until neighbourhood radius) we find callable candidate peers
for size := 0; size < k.MinBinSize && suggestedPeer == nil; size++ {
bins, ok := saturation[size]
if !ok {
// no bin with this size
continue
}
return f(func(val pot.Val) bool {
e := val.(*entry)
c := k.callable(e)
if c {
a = e.BzzAddr
cur := 0
curPO := bins[0]
k.addrs.EachBin(k.base, Pof, curPO, func(po, _ int, f func(func(pot.Val) bool) bool) bool {
curPO = bins[cur]
// find the next bin that has size size
if curPO == po {
cur++
} else {
// skip bins that have no addresses
for ; cur < len(bins) && curPO < po; cur++ {
curPO = bins[cur]
}
if po < curPO {
cur--
return true
}
// stop if there are no addresses
if curPO < po {
return false
}
}
return !c
// curPO found
// find a callable peer out of the addresses in the unsaturated bin
// stop if found
f(func(val pot.Val) bool {
e := val.(*entry)
if k.callable(e) {
suggestedPeer = e.BzzAddr
return false
}
return true
})
return cur < len(bins) && suggestedPeer == nil
})
})
// found a candidate
if a != nil {
return a, 0, false
}
// no candidate peer found, request for the short bin
var changed bool
if uint8(nxt) < k.depth {
k.depth = uint8(nxt)
changed = true
if uint8(saturationDepth) < k.depth {
k.depth = uint8(saturationDepth)
return suggestedPeer, saturationDepth, true
}
return a, nxt, changed
return suggestedPeer, 0, false
}
// On inserts the peer as a kademlia peer into the live peers
// On inserts the peer as a kademlia peer into the live peers
func (k *Kademlia) On(p *Peer) (uint8, bool) {
k.lock.Lock()
defer k.lock.Unlock()
@ -398,29 +431,25 @@ func (k *Kademlia) eachAddr(base []byte, o int, f func(*BzzAddr, int) bool) {
})
}
// NeighbourhoodDepth returns the depth for the pot, see depthForPot
func (k *Kademlia) NeighbourhoodDepth() (depth int) {
k.lock.RLock()
defer k.lock.RUnlock()
return depthForPot(k.conns, k.NeighbourhoodSize, k.base)
}
// depthForPot returns the proximity order that defines the distance of
// the nearest neighbour set with cardinality >= NeighbourhoodSize
// if there is altogether less than NeighbourhoodSize peers it returns 0
// neighbourhoodRadiusForPot returns the neighbourhood radius of the kademlia
// neighbourhood radius encloses the nearest neighbour set with size >= neighbourhoodSize
// i.e., neighbourhood radius is the deepest PO such that all bins not shallower altogether
// contain at least neighbourhoodSize connected peers
// if there is altogether less than neighbourhoodSize peers connected, it returns 0
// caller must hold the lock
func depthForPot(p *pot.Pot, neighbourhoodSize int, pivotAddr []byte) (depth int) {
func neighbourhoodRadiusForPot(p *pot.Pot, neighbourhoodSize int, pivotAddr []byte) (depth int) {
if p.Size() <= neighbourhoodSize {
return 0
}
// total number of peers in iteration
var size int
// determining the depth is a two-step process
// first we find the proximity bin of the shallowest of the NeighbourhoodSize peers
// the numeric value of depth cannot be higher than this
var maxDepth int
f := func(v pot.Val, i int) bool {
// po == 256 means that addr is the pivot address(self)
if i == 256 {
@ -431,13 +460,30 @@ func depthForPot(p *pot.Pot, neighbourhoodSize int, pivotAddr []byte) (depth int
// this means we have all nn-peers.
// depth is by default set to the bin of the farthest nn-peer
if size == neighbourhoodSize {
maxDepth = i
depth = i
return false
}
return true
}
p.EachNeighbour(pivotAddr, Pof, f)
return depth
}
// depthForPot returns the depth for the pot
// depth is the radius of the minimal extension of nearest neighbourhood that
// includes all empty PO bins. I.e., depth is the deepest PO such that
// - it is not deeper than neighbourhood radius
// - all bins shallower than depth are not empty
// caller must hold the lock
func depthForPot(p *pot.Pot, neighbourhoodSize int, pivotAddr []byte) (depth int) {
if p.Size() <= neighbourhoodSize {
return 0
}
// determining the depth is a two-step process
// first we find the proximity bin of the shallowest of the neighbourhoodSize peers
// the numeric value of depth cannot be higher than this
maxDepth := neighbourhoodRadiusForPot(p, neighbourhoodSize, pivotAddr)
// the second step is to test for empty bins in order from shallowest to deepest
// if an empty bin is found, this will be the actual depth
@ -627,23 +673,20 @@ func NewPeerPotMap(neighbourhoodSize int, addrs [][]byte) map[string]*PeerPot {
return ppmap
}
// saturation iterates through all peers and
// returns the smallest po value in which the node has less than n peers
// if the iterator reaches depth, then value for depth is returned
// TODO move to separate testing tools file
// TODO this function will stop at the first bin with less than MinBinSize peers, even if there are empty bins between that bin and the depth. This may not be correct behavior
// saturation returns the smallest po value in which the node has less than MinBinSize peers
// if the iterator reaches neighbourhood radius, then the last bin + 1 is returned
func (k *Kademlia) saturation() int {
prev := -1
k.addrs.EachBin(k.base, Pof, 0, func(po, size int, f func(func(val pot.Val) bool) bool) bool {
radius := neighbourhoodRadiusForPot(k.conns, k.NeighbourhoodSize, k.base)
k.conns.EachBin(k.base, Pof, 0, func(po, size int, f func(func(val pot.Val) bool) bool) bool {
prev++
if po >= radius {
return false
}
return prev == po && size >= k.MinBinSize
})
// TODO evaluate whether this check cannot just as well be done within the eachbin
depth := depthForPot(k.conns, k.NeighbourhoodSize, k.base)
// if in the iterator above we iterated deeper than the neighbourhood depth - return depth
if depth < prev {
return depth
if prev < 0 {
return 0
}
return prev
}
@ -745,6 +788,9 @@ type Health struct {
func (k *Kademlia) Healthy(pp *PeerPot) *Health {
k.lock.RLock()
defer k.lock.RUnlock()
if len(pp.NNSet) < k.NeighbourhoodSize {
log.Warn("peerpot NNSet < NeighbourhoodSize")
}
gotnn, countgotnn, culpritsgotnn := k.connectedNeighbours(pp.NNSet)
knownn, countknownn, culpritsknownn := k.knowNeighbours(pp.NNSet)
depth := depthForPot(k.conns, k.NeighbourhoodSize, k.base)

722
swarm/network/kademlia_test.go
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@ -17,7 +17,6 @@
package network
import (
"bytes"
"fmt"
"os"
"testing"
@ -43,39 +42,46 @@ func testKadPeerAddr(s string) *BzzAddr {
func newTestKademliaParams() *KadParams {
params := NewKadParams()
// TODO why is this 1?
params.MinBinSize = 1
params.MinBinSize = 2
params.NeighbourhoodSize = 2
return params
}
func newTestKademlia(b string) *Kademlia {
type testKademlia struct {
*Kademlia
t *testing.T
}
func newTestKademlia(t *testing.T, b string) *testKademlia {
base := pot.NewAddressFromString(b)
return NewKademlia(base, newTestKademliaParams())
return &testKademlia{
Kademlia: NewKademlia(base, newTestKademliaParams()),
t: t,
}
}
func newTestKadPeer(k *Kademlia, s string, lightNode bool) *Peer {
return NewPeer(&BzzPeer{BzzAddr: testKadPeerAddr(s), LightNode: lightNode}, k)
func (tk *testKademlia) newTestKadPeer(s string, lightNode bool) *Peer {
return NewPeer(&BzzPeer{BzzAddr: testKadPeerAddr(s), LightNode: lightNode}, tk.Kademlia)
}
func On(k *Kademlia, ons ...string) {
func (tk *testKademlia) On(ons ...string) {
for _, s := range ons {
k.On(newTestKadPeer(k, s, false))
tk.Kademlia.On(tk.newTestKadPeer(s, false))
}
}
func Off(k *Kademlia, offs ...string) {
func (tk *testKademlia) Off(offs ...string) {
for _, s := range offs {
k.Off(newTestKadPeer(k, s, false))
tk.Kademlia.Off(tk.newTestKadPeer(s, false))
}
}
func Register(k *Kademlia, regs ...string) {
func (tk *testKademlia) Register(regs ...string) {
var as []*BzzAddr
for _, s := range regs {
as = append(as, testKadPeerAddr(s))
}
err := k.Register(as...)
err := tk.Kademlia.Register(as...)
if err != nil {
panic(err.Error())
}
@ -169,76 +175,71 @@ func TestHealthStrict(t *testing.T) {
// base address is all zeros
// no peers
// unhealthy (and lonely)
k := newTestKademlia("11111111")
assertHealth(t, k, false, false)
tk := newTestKademlia(t, "11111111")
tk.checkHealth(false, false)
// know one peer but not connected
// unhealthy
Register(k, "11100000")
log.Trace(k.String())
assertHealth(t, k, false, false)
tk.Register("11100000")
tk.checkHealth(false, false)
// know one peer and connected
// healthy
On(k, "11100000")
assertHealth(t, k, true, false)
tk.On("11100000")
tk.checkHealth(true, false)
// know two peers, only one connected
// unhealthy
Register(k, "11111100")
log.Trace(k.String())
assertHealth(t, k, false, false)
tk.Register("11111100")
tk.checkHealth(false, false)
// know two peers and connected to both
// healthy
On(k, "11111100")
assertHealth(t, k, true, false)
tk.On("11111100")
tk.checkHealth(true, false)
// know three peers, connected to the two deepest
// healthy
Register(k, "00000000")
log.Trace(k.String())
assertHealth(t, k, true, false)
tk.Register("00000000")
tk.checkHealth(true, false)
// know three peers, connected to all three
// healthy
On(k, "00000000")
assertHealth(t, k, true, false)
tk.On("00000000")
tk.checkHealth(true, false)
// add fourth peer deeper than current depth
// unhealthy
Register(k, "11110000")
log.Trace(k.String())
assertHealth(t, k, false, false)
tk.Register("11110000")
tk.checkHealth(false, false)
// connected to three deepest peers
// healthy
On(k, "11110000")
assertHealth(t, k, true, false)
tk.On("11110000")
tk.checkHealth(true, false)
// add additional peer in same bin as deepest peer
// unhealthy
Register(k, "11111101")
log.Trace(k.String())
assertHealth(t, k, false, false)
tk.Register("11111101")
tk.checkHealth(false, false)
// four deepest of five peers connected
// healthy
On(k, "11111101")
assertHealth(t, k, true, false)
tk.On("11111101")
tk.checkHealth(true, false)
}
func assertHealth(t *testing.T, k *Kademlia, expectHealthy bool, expectSaturation bool) {
t.Helper()
kid := common.Bytes2Hex(k.BaseAddr())
addrs := [][]byte{k.BaseAddr()}
k.EachAddr(nil, 255, func(addr *BzzAddr, po int) bool {
func (tk *testKademlia) checkHealth(expectHealthy bool, expectSaturation bool) {
tk.t.Helper()
kid := common.Bytes2Hex(tk.BaseAddr())
addrs := [][]byte{tk.BaseAddr()}
tk.EachAddr(nil, 255, func(addr *BzzAddr, po int) bool {
addrs = append(addrs, addr.Address())
return true
})
pp := NewPeerPotMap(k.NeighbourhoodSize, addrs)
healthParams := k.Healthy(pp[kid])
pp := NewPeerPotMap(tk.NeighbourhoodSize, addrs)
healthParams := tk.Healthy(pp[kid])
// definition of health, all conditions but be true:
// - we at least know one peer
@ -246,23 +247,23 @@ func assertHealth(t *testing.T, k *Kademlia, expectHealthy bool, expectSaturatio
// - we are connected to all known neighbors
health := healthParams.KnowNN && healthParams.ConnectNN && healthParams.CountKnowNN > 0
if expectHealthy != health {
t.Fatalf("expected kademlia health %v, is %v\n%v", expectHealthy, health, k.String())
tk.t.Fatalf("expected kademlia health %v, is %v\n%v", expectHealthy, health, tk.String())
}
}
func testSuggestPeer(k *Kademlia, expAddr string, expPo int, expWant bool) error {
addr, o, want := k.SuggestPeer()
log.Trace("suggestpeer return", "a", addr, "o", o, "want", want)
func (tk *testKademlia) checkSuggestPeer(expAddr string, expDepth int, expChanged bool) {
tk.t.Helper()
addr, depth, changed := tk.SuggestPeer()
log.Trace("suggestPeer return", "addr", addr, "depth", depth, "changed", changed)
if binStr(addr) != expAddr {
return fmt.Errorf("incorrect peer address suggested. expected %v, got %v", expAddr, binStr(addr))
tk.t.Fatalf("incorrect peer address suggested. expected %v, got %v", expAddr, binStr(addr))
}
if o != expPo {
return fmt.Errorf("incorrect prox order suggested. expected %v, got %v", expPo, o)
if depth != expDepth {
tk.t.Fatalf("incorrect saturation depth suggested. expected %v, got %v", expDepth, depth)
}
if want != expWant {
return fmt.Errorf("expected SuggestPeer to want peers: %v", expWant)
if changed != expChanged {
tk.t.Fatalf("expected depth change = %v, got %v", expChanged, changed)
}
return nil
}
func binStr(a *BzzAddr) string {
@ -272,609 +273,184 @@ func binStr(a *BzzAddr) string {
return pot.ToBin(a.Address())[:8]
}
// TODO explain why this bug occurred and how it should have been mitigated
func TestSuggestPeerBug(t *testing.T) {
// 2 row gap, unsaturated proxbin, no callables -> want PO 0
k := newTestKademlia("00000000")
On(k,
"10000000", "11000000",
"01000000",
"00010000", "00011000",
)
Off(k,
"01000000",
)
err := testSuggestPeer(k, "01000000", 0, false)
if err != nil {
t.Fatal(err.Error())
}
}
func TestSuggestPeerFindPeers(t *testing.T) {
t.Skip("The SuggestPeers implementation seems to have weaknesses exposed by the change in the new depth calculation. The results are no longer predictable")
testnum := 0
// test 0
// 2 row gap, unsaturated proxbin, no callables -> want PO 0
k := newTestKademlia("00000000")
On(k, "00100000")
err := testSuggestPeer(k, "<nil>", 0, false)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
// test 1
// 2 row gap, saturated proxbin, no callables -> want PO 0
On(k, "00010000")
err = testSuggestPeer(k, "<nil>", 0, false)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
tk := newTestKademlia(t, "00000000")
tk.On("00100000")
tk.checkSuggestPeer("<nil>", 0, false)
// test 2
// 1 row gap (1 less), saturated proxbin, no callables -> want PO 1
On(k, "10000000")
err = testSuggestPeer(k, "<nil>", 1, false)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
tk.On("00010000")
tk.checkSuggestPeer("<nil>", 0, false)
// test 3
// no gap (1 less), saturated proxbin, no callables -> do not want more
On(k, "01000000", "00100001")
err = testSuggestPeer(k, "<nil>", 0, false)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
tk.On("10000000", "10000001")
tk.checkSuggestPeer("<nil>", 0, false)
// test 4
// oversaturated proxbin, > do not want more
On(k, "00100001")
err = testSuggestPeer(k, "<nil>", 0, false)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
tk.On("01000000")
tk.Off("10000001")
tk.checkSuggestPeer("10000001", 0, true)
// test 5
// reintroduce gap, disconnected peer callable
Off(k, "01000000")
log.Trace(k.String())
err = testSuggestPeer(k, "01000000", 0, false)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
tk.On("00100001")
tk.Off("01000000")
tk.checkSuggestPeer("01000000", 0, false)
// test 6
// second time disconnected peer not callable
// with reasonably set Interval
log.Trace("foo")
log.Trace(k.String())
err = testSuggestPeer(k, "<nil>", 1, false)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
tk.checkSuggestPeer("<nil>", 0, false)
// test 6
// on and off again, peer callable again
On(k, "01000000")
Off(k, "01000000")
log.Trace(k.String())
err = testSuggestPeer(k, "01000000", 0, false)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
tk.On("01000000")
tk.Off("01000000")
tk.checkSuggestPeer("01000000", 0, false)
// test 7
// new closer peer appears, it is immediately wanted
On(k, "01000000")
Register(k, "00010001")
err = testSuggestPeer(k, "00010001", 0, false)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
// test 8
// PO1 disconnects
On(k, "00010001")
log.Info(k.String())
Off(k, "01000000")
log.Info(k.String())
// second time, gap filling
err = testSuggestPeer(k, "01000000", 0, false)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
tk.On("01000000", "10000001")
tk.checkSuggestPeer("<nil>", 0, false)
// test 9
On(k, "01000000")
log.Info(k.String())
err = testSuggestPeer(k, "<nil>", 0, false)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
tk.Register("00010001")
tk.checkSuggestPeer("00010001", 0, false)
// test 10
k.MinBinSize = 2
log.Info(k.String())
err = testSuggestPeer(k, "<nil>", 0, true)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
tk.On("00010001")
tk.Off("01000000")
tk.checkSuggestPeer("01000000", 0, false)
// test 11
Register(k, "01000001")
log.Info(k.String())
err = testSuggestPeer(k, "01000001", 0, false)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
tk.On("01000000")
tk.checkSuggestPeer("<nil>", 0, false)
// test 12
On(k, "10000001")
log.Trace(fmt.Sprintf("Kad:\n%v", k.String()))
err = testSuggestPeer(k, "<nil>", 1, true)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
tk.Register("01000001")
tk.checkSuggestPeer("01000001", 0, false)
// test 13
On(k, "01000001")
err = testSuggestPeer(k, "<nil>", 0, false)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
tk.On("01000001")
tk.checkSuggestPeer("<nil>", 0, false)
// test 14
k.MinBinSize = 3
Register(k, "10000010")
err = testSuggestPeer(k, "10000010", 0, false)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
tk.Register("10000010", "01000010", "00100010")
tk.checkSuggestPeer("<nil>", 0, false)
// test 15
On(k, "10000010")
err = testSuggestPeer(k, "<nil>", 1, false)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
tk.Register("00010010")
tk.checkSuggestPeer("00010010", 0, false)
// test 16
On(k, "01000010")
err = testSuggestPeer(k, "<nil>", 2, false)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
tk.Off("00100001")
tk.checkSuggestPeer("00100010", 2, true)
// test 17
On(k, "00100010")
err = testSuggestPeer(k, "<nil>", 3, false)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
tk.Off("01000001")
tk.checkSuggestPeer("01000010", 1, true)
// test 18
On(k, "00010010")
err = testSuggestPeer(k, "<nil>", 0, false)
if err != nil {
t.Fatalf("%d %v", testnum, err.Error())
}
testnum++
tk.checkSuggestPeer("01000001", 0, false)
tk.checkSuggestPeer("00100001", 0, false)
tk.checkSuggestPeer("<nil>", 0, false)
tk.On("01000001", "00100001")
tk.Register("10000100", "01000100", "00100100")
tk.Register("00000100", "00000101", "00000110")
tk.Register("00000010", "00000011", "00000001")
tk.checkSuggestPeer("00000110", 0, false)
tk.checkSuggestPeer("00000101", 0, false)
tk.checkSuggestPeer("00000100", 0, false)
tk.checkSuggestPeer("00000011", 0, false)
tk.checkSuggestPeer("00000010", 0, false)
tk.checkSuggestPeer("00000001", 0, false)
tk.checkSuggestPeer("<nil>", 0, false)
}
// a node should stay in the address book if it's removed from the kademlia
func TestOffEffectingAddressBookNormalNode(t *testing.T) {
k := newTestKademlia("00000000")
tk := newTestKademlia(t, "00000000")
// peer added to kademlia
k.On(newTestKadPeer(k, "01000000", false))
tk.On("01000000")
// peer should be in the address book
if k.addrs.Size() != 1 {
if tk.addrs.Size() != 1 {
t.Fatal("known peer addresses should contain 1 entry")
}
// peer should be among live connections
if k.conns.Size() != 1 {
if tk.conns.Size() != 1 {
t.Fatal("live peers should contain 1 entry")
}
// remove peer from kademlia
k.Off(newTestKadPeer(k, "01000000", false))
tk.Off("01000000")
// peer should be in the address book
if k.addrs.Size() != 1 {
if tk.addrs.Size() != 1 {
t.Fatal("known peer addresses should contain 1 entry")
}
// peer should not be among live connections
if k.conns.Size() != 0 {
if tk.conns.Size() != 0 {
t.Fatal("live peers should contain 0 entry")
}
}
// a light node should not be in the address book
func TestOffEffectingAddressBookLightNode(t *testing.T) {
k := newTestKademlia("00000000")
tk := newTestKademlia(t, "00000000")
// light node peer added to kademlia
k.On(newTestKadPeer(k, "01000000", true))
tk.Kademlia.On(tk.newTestKadPeer("01000000", true))
// peer should not be in the address book
if k.addrs.Size() != 0 {
if tk.addrs.Size() != 0 {
t.Fatal("known peer addresses should contain 0 entry")
}
// peer should be among live connections
if k.conns.Size() != 1 {
if tk.conns.Size() != 1 {
t.Fatal("live peers should contain 1 entry")
}
// remove peer from kademlia
k.Off(newTestKadPeer(k, "01000000", true))
tk.Kademlia.Off(tk.newTestKadPeer("01000000", true))
// peer should not be in the address book
if k.addrs.Size() != 0 {
if tk.addrs.Size() != 0 {
t.Fatal("known peer addresses should contain 0 entry")
}
// peer should not be among live connections
if k.conns.Size() != 0 {
if tk.conns.Size() != 0 {
t.Fatal("live peers should contain 0 entry")
}
}
func TestSuggestPeerRetries(t *testing.T) {
k := newTestKademlia("00000000")
k.RetryInterval = int64(300 * time.Millisecond) // cycle
k.MaxRetries = 50
k.RetryExponent = 2
tk := newTestKademlia(t, "00000000")
tk.RetryInterval = int64(300 * time.Millisecond) // cycle
tk.MaxRetries = 50
tk.RetryExponent = 2
sleep := func(n int) {
ts := k.RetryInterval
ts := tk.RetryInterval
for i := 1; i < n; i++ {
ts *= int64(k.RetryExponent)
ts *= int64(tk.RetryExponent)
}
time.Sleep(time.Duration(ts))
}
Register(k, "01000000")
On(k, "00000001", "00000010")
err := testSuggestPeer(k, "01000000", 0, false)
if err != nil {
t.Fatal(err.Error())
}
tk.Register("01000000")
tk.On("00000001", "00000010")
tk.checkSuggestPeer("01000000", 0, false)
err = testSuggestPeer(k, "<nil>", 0, false)
if err != nil {
t.Fatal(err.Error())
}
tk.checkSuggestPeer("<nil>", 0, false)
sleep(1)
err = testSuggestPeer(k, "01000000", 0, false)
if err != nil {
t.Fatal(err.Error())
}
tk.checkSuggestPeer("01000000", 0, false)
err = testSuggestPeer(k, "<nil>", 0, false)
if err != nil {
t.Fatal(err.Error())
}
tk.checkSuggestPeer("<nil>", 0, false)
sleep(1)
err = testSuggestPeer(k, "01000000", 0, false)
if err != nil {
t.Fatal(err.Error())
}
tk.checkSuggestPeer("01000000", 0, false)
err = testSuggestPeer(k, "<nil>", 0, false)
if err != nil {
t.Fatal(err.Error())
}
tk.checkSuggestPeer("<nil>", 0, false)
sleep(2)
err = testSuggestPeer(k, "01000000", 0, false)
if err != nil {
t.Fatal(err.Error())
}
tk.checkSuggestPeer("01000000", 0, false)
err = testSuggestPeer(k, "<nil>", 0, false)
if err != nil {
t.Fatal(err.Error())
}
tk.checkSuggestPeer("<nil>", 0, false)
sleep(2)
err = testSuggestPeer(k, "<nil>", 0, false)
if err != nil {
t.Fatal(err.Error())
}
tk.checkSuggestPeer("<nil>", 0, false)
}
func TestKademliaHiveString(t *testing.T) {
k := newTestKademlia("00000000")
On(k, "01000000", "00100000")
Register(k, "10000000", "10000001")
k.MaxProxDisplay = 8
h := k.String()
expH := "\n=========================================================================\nMon Feb 27 12:10:28 UTC 2017 KΛÐΞMLIΛ hive: queen's address: 000000\npopulation: 2 (4), NeighbourhoodSize: 2, MinBinSize: 1, MaxBinSize: 4\n============ DEPTH: 0 ==========================================\n000 0 | 2 8100 (0) 8000 (0)\n001 1 4000 | 1 4000 (0)\n002 1 2000 | 1 2000 (0)\n003 0 | 0\n004 0 | 0\n005 0 | 0\n006 0 | 0\n007 0 | 0\n========================================================================="
tk := newTestKademlia(t, "00000000")
tk.On("01000000", "00100000")
tk.Register("10000000", "10000001")
tk.MaxProxDisplay = 8
h := tk.String()
expH := "\n=========================================================================\nMon Feb 27 12:10:28 UTC 2017 KΛÐΞMLIΛ hive: queen's address: 000000\npopulation: 2 (4), NeighbourhoodSize: 2, MinBinSize: 2, MaxBinSize: 4\n============ DEPTH: 0 ==========================================\n000 0 | 2 8100 (0) 8000 (0)\n001 1 4000 | 1 4000 (0)\n002 1 2000 | 1 2000 (0)\n003 0 | 0\n004 0 | 0\n005 0 | 0\n006 0 | 0\n007 0 | 0\n========================================================================="
if expH[104:] != h[104:] {
t.Fatalf("incorrect hive output. expected %v, got %v", expH, h)
}
}
// testKademliaCase constructs the kademlia and PeerPot map to validate
// the SuggestPeer and Healthy methods for provided hex-encoded addresses.
// Argument pivotAddr is the address of the kademlia.
func testKademliaCase(t *testing.T, pivotAddr string, addrs ...string) {
t.Skip("this test relies on SuggestPeer which is now not reliable. See description in TestSuggestPeerFindPeers")
addr := common.Hex2Bytes(pivotAddr)
var byteAddrs [][]byte
for _, ahex := range addrs {
byteAddrs = append(byteAddrs, common.Hex2Bytes(ahex))
}
k := NewKademlia(addr, NewKadParams())
// our pivot kademlia is the last one in the array
for _, a := range byteAddrs {
if bytes.Equal(a, addr) {
continue
}
p := &BzzAddr{OAddr: a, UAddr: a}
if err := k.Register(p); err != nil {
t.Fatalf("a %x addr %x: %v", a, addr, err)
}
}
ppmap := NewPeerPotMap(k.NeighbourhoodSize, byteAddrs)
pp := ppmap[pivotAddr]
for {
a, _, _ := k.SuggestPeer()
if a == nil {
break
}
k.On(NewPeer(&BzzPeer{BzzAddr: a}, k))
}
h := k.Healthy(pp)
if !(h.ConnectNN && h.KnowNN && h.CountKnowNN > 0) {
t.Fatalf("not healthy: %#v\n%v", h, k.String())
}
}
/*
The regression test for the following invalid kademlia edge case.
Addresses used in this test are discovered as part of the simulation network
in higher level tests for streaming. They were generated randomly.
=========================================================================
Mon Apr 9 12:18:24 UTC 2018 KΛÐΞMLIΛ hive: queen's address: 7efef1
population: 9 (49), NeighbourhoodSize: 2, MinBinSize: 2, MaxBinSize: 4
000 2 d7e5 ec56 | 18 ec56 (0) d7e5 (0) d9e0 (0) c735 (0)
001 2 18f1 3176 | 14 18f1 (0) 10bb (0) 10d1 (0) 0421 (0)
002 2 52aa 47cd | 11 52aa (0) 51d9 (0) 5161 (0) 5130 (0)
003 1 646e | 1 646e (0)
004 0 | 3 769c (0) 76d1 (0) 7656 (0)
============ DEPTH: 5 ==========================================
005 1 7a48 | 1 7a48 (0)
006 1 7cbd | 1 7cbd (0)
007 0 | 0
008 0 | 0
009 0 | 0
010 0 | 0
011 0 | 0
012 0 | 0
013 0 | 0
014 0 | 0
015 0 | 0
=========================================================================
*/
func TestKademliaCase1(t *testing.T) {
testKademliaCase(t,
"7efef1c41d77f843ad167be95f6660567eb8a4a59f39240000cce2e0d65baf8e",
"ec560e6a4806aa37f147ee83687f3cf044d9953e61eedb8c34b6d50d9e2c5623",
"646e9540c84f6a2f9cf6585d45a4c219573b4fd1b64a3c9a1386fc5cf98c0d4d",
"18f13c5fba653781019025ab10e8d2fdc916d6448729268afe9e928ffcdbb8e8",
"317617acf99b4ffddda8a736f8fc6c6ede0bf690bc23d834123823e6d03e2f69",
"d7e52d9647a5d1c27a68c3ee65d543be3947ae4b68537b236d71ef9cb15fb9ab",
"7a48f75f8ca60487ae42d6f92b785581b40b91f2da551ae73d5eae46640e02e8",
"7cbd42350bde8e18ae5b955b5450f8e2cef3419f92fbf5598160c60fd78619f0",
"52aa3ddec61f4d48dd505a2385403c634f6ad06ee1d99c5c90a5ba6006f9af9c",
"47cdb6fa93eeb8bc91a417ff4e3b14a9c2ea85137462e2f575fae97f0c4be60d",
"5161943eb42e2a03e715fe8afa1009ff5200060c870ead6ab103f63f26cb107f",
"a38eaa1255f76bf883ca0830c86e8c4bb7eed259a8348aae9b03f21f90105bee",
"b2522bdf1ab26f324e75424fdf6e493b47e8a27687fe76347607b344fc010075",
"5bd7213964efb2580b91d02ac31ef126838abeba342f5dbdbe8d4d03562671a2",
"0b531adb82744768b694d7f94f73d4f0c9de591266108daeb8c74066bfc9c9ca",
"28501f59f70e888d399570145ed884353e017443c675aa12731ada7c87ea14f7",
"4a45f1fc63e1a9cb9dfa44c98da2f3d20c2923e5d75ff60b2db9d1bdb0c54d51",
"b193431ee35cd32de95805e7c1c749450c47486595aae7195ea6b6019a64fd61",
"baebf36a1e35a7ed834e1c72faf44ba16c159fa47d3289ceb3ca35fefa8739b5",
"a3659bd32e05fa36c8d20dbaaed8362bf1a8a7bd116aed62d8a43a2efbdf513f",
"10d1b50881a4770ebebdd0a75589dabb931e6716747b0f65fd6b080b88c4fdb6",
"3c76b8ca5c7ce6a03320646826213f59229626bf5b9d25da0c3ec0662dcb8ff3",
"4d72a04ddeb851a68cd197ef9a92a3e2ff01fbbff638e64929dd1a9c2e150112",
"c7353d320987956075b5bc1668571c7a36c800d5598fdc4832ec6569561e15d1",
"d9e0c7c90878c20ab7639d5954756f54775404b3483407fe1b483635182734f6",
"8fca67216b7939c0824fb06c5279901a94da41da9482b000f56df9906736ee75",
"460719d7f7aa7d7438f0eaf30333484fa3bd0f233632c10ba89e6e46dd3604be",
"0421d92c8a1c79ed5d01305a3d25aaf22a8f5f9e3d4bc80da47ee16ce20465fe",
"3441d9d9c0f05820a1bb6459fc7d8ef266a1bd929e7db939a10f544efe8261ea",
"ab198a66c293586746758468c610e5d3914d4ce629147eff6dd55a31f863ff8f",
"3a1c8c16b0763f3d2c35269f454ff779d1255e954d2deaf6c040fb3f0bcdc945",
"5561c0ea3b203e173b11e6aa9d0e621a4e10b1d8b178b8fe375220806557b823",
"7656caccdc79cd8d7ce66d415cc96a718e8271c62fb35746bfc2b49faf3eebf3",
"5130594fd54c1652cf2debde2c4204573ed76555d1e26757fe345b409af1544a",
"76d1e83c71ca246d042e37ff1db181f2776265fbcfdc890ce230bfa617c9c2f0",
"89580231962624c53968c1b0095b4a2732b2a2640a19fdd7d21fd064fcc0a5ef",
"3d10d001fff44680c7417dd66ecf2e984f0baa20a9bbcea348583ba5ff210c4f",
"43754e323f0f3a1155b1852bd6edd55da86b8c4cfe3df8b33733fca50fc202b8",
"a9e7b1bb763ae6452ddcacd174993f82977d81a85206bb2ae3c842e2d8e19b4c",
"10bb07da7bc7c7757f74149eff167d528a94a253cdc694a863f4d50054c00b6d",
"28f0bc1b44658548d6e05dd16d4c2fe77f1da5d48b6774bc4263b045725d0c19",
"835fbbf1d16ba7347b6e2fc552d6e982148d29c624ea20383850df3c810fa8fc",
"8e236c56a77d7f46e41e80f7092b1a68cd8e92f6156365f41813ad1ca2c6b6f3",
"51d9c857e9238c49186e37b4eccf17a82de3d5739f026f6043798ab531456e73",
"bbddf7db6a682225301f36a9fd5b0d0121d2951753e1681295f3465352ad511f",
"2690a910c33ee37b91eb6c4e0731d1d345e2dc3b46d308503a6e85bbc242c69e",
"769ce86aa90b518b7ed382f9fdacfbed93574e18dc98fe6c342e4f9f409c2d5a",
"ba3bebec689ce51d3e12776c45f80d25164fdfb694a8122d908081aaa2e7122c",
"3a51f4146ea90a815d0d283d1ceb20b928d8b4d45875e892696986a3c0d8fb9b",
"81968a2d8fb39114342ee1da85254ec51e0608d7f0f6997c2a8354c260a71009",
)
}
/*
The regression test for the following invalid kademlia edge case.
Addresses used in this test are discovered as part of the simulation network
in higher level tests for streaming. They were generated randomly.
=========================================================================
Mon Apr 9 18:43:48 UTC 2018 KΛÐΞMLIΛ hive: queen's address: bc7f3b
population: 9 (49), NeighbourhoodSize: 2, MinBinSize: 2, MaxBinSize: 4
000 2 0f49 67ff | 28 0f49 (0) 0211 (0) 07b2 (0) 0703 (0)
001 2 e84b f3a4 | 13 f3a4 (0) e84b (0) e58b (0) e60b (0)
002 1 8dba | 1 8dba (0)
003 2 a008 ad72 | 2 ad72 (0) a008 (0)
004 0 | 3 b61f (0) b27f (0) b027 (0)
============ DEPTH: 5 ==========================================
005 1 ba19 | 1 ba19 (0)
006 0 | 0
007 1 bdd6 | 1 bdd6 (0)
008 0 | 0
009 0 | 0
010 0 | 0
011 0 | 0
012 0 | 0
013 0 | 0
014 0 | 0
015 0 | 0
=========================================================================
*/
func TestKademliaCase2(t *testing.T) {
testKademliaCase(t,
"bc7f3b6a4a7e3c91b100ca6680b6c06ff407972b88956324ca853295893e0237", "67ffb61d3aa27449d277016188f35f19e2321fbda5008c68cf6303faa080534f", "600cd54c842eadac1729c04abfc369bc244572ca76117105b9dd910283b82730", "d955a05409650de151218557425105a8aa2867bb6a0e0462fa1cf90abcf87ad6", "7a6b726de45abdf7bb3e5fd9fb0dc8932270ca4dedef92238c80c05bcdb570e3", "263e99424ebfdb652adb4e3dcd27d59e11bb7ae1c057b3ef6f390d0228006254", "ba195d1a53aafde68e661c64d39db8c2a73505bf336125c15c3560de3b48b7ed", "3458c762169937115f67cabc35a6c384ed70293a8aec37b077a6c1b8e02d510e", "4ef4dc2e28ac6efdba57e134ac24dd4e0be68b9d54f7006515eb9509105f700c", "2a8782b79b0c24b9714dfd2c8ff1932bebc08aa6520b4eaeaa59ff781238890c", "625d02e960506f4524e9cdeac85b33faf3ea437fceadbd478b62b78720cf24fc", "e051a36a8c8637f520ba259c9ed3fadaf740dadc6a04c3f0e21778ebd4cd6ac4", "e34bc014fa2504f707bb3d904872b56c2fa250bee3cb19a147a0418541f1bd90", "28036dc79add95799916893890add5d8972f3b95325a509d6ded3d448f4dc652", "1b013c407794fa2e4c955d8f51cbc6bd78588a174b6548246b291281304b5409", "34f71b68698e1534095ff23ee9c35bf64c7f12b8463e7c6f6b19c25cf03928b4", "c712c6e9bbb7076832972a95890e340b94ed735935c3c0bb788e61f011b59479", "a008d5becdcda4b9dbfdaafc3cec586cf61dcf2d4b713b6168fff02e3b9f0b08", "29de15555cdbebaab214009e416ee92f947dcec5dab9894129f50f1b17138f34", "5df9449f700bd4b5a23688b68b293f2e92fa6ca524c93bc6bb9936efba9d9ada", "3ab0168a5f87fedc6a39b53c628256ac87a98670d8691bbdaaecec22418d13a2", "1ee299b2d2a74a568494130e6869e66d57982d345c482a0e0eeb285ac219ae3b", "e0e0e3b860cea9b7a74cf1b0675cc632dc64e80a02f20bbc5e96e2e8bb670606", "dc1ba6f169b0fcdcca021dcebaf39fe5d4875e7e69b854fad65687c1d7719ec0", "d321f73e42fcfb1d3a303eddf018ca5dffdcfd5567cd5ec1212f045f6a07e47d", "070320c3da7b542e5ca8aaf6a0a53d2bb5113ed264ab1db2dceee17c729edcb1", "17d314d65fdd136b50d182d2c8f5edf16e7838c2be8cf2c00abe4b406dbcd1d8", "e60b99e0a06f7d2d99d84085f67cdf8cc22a9ae22c339365d80f90289834a2b4", "02115771e18932e1f67a45f11f5bf743c5dae97fbc477d34d35c996012420eac", "3102a40eb2e5060353dd19bf61eeec8782dd1bebfcb57f4c796912252b591827", "8dbaf231062f2dc7ddaba5f9c7761b0c21292be51bf8c2ef503f31d4a2f63f79", "b02787b713c83a9f9183216310f04251994e04c2763a9024731562e8978e7cc4", "b27fe6cd33989e10909ce794c4b0b88feae286b614a59d49a3444c1a7b51ea82", "07b2d2c94fdc6fd148fe23be2ed9eff54f5e12548f29ed8416e6860fc894466f", "e58bf9f451ef62ac44ff0a9bb0610ec0fd14d423235954f0d3695e83017cbfc4", "bdd600b91bb79d1ee0053b854de308cfaa7e2abce575ea6815a0a7b3449609c2", "0f49c93c1edc7999920b21977cedd51a763940dac32e319feb9c1df2da0f3071", "7cbf0297cd41acf655cd6f960d7aaf61479edb4189d5c001cbc730861f0deb41", "79265193778d87ad626a5f59397bc075872d7302a12634ce2451a767d0a82da2", "2fe7d705f7c370b9243dbaafe007d555ff58d218822fca49d347b12a0282457c", "e84bc0c83d05e55a0080eed41dda5a795da4b9313a4da697142e69a65834cbb3", "cc4d278bd9aa0e9fb3cd8d2e0d68fb791aab5de4b120b845c409effbed47a180", "1a2317a8646cd4b6d3c4aa4cc25f676533abb689cf180787db216880a1239ad8", "cbafd6568cf8e99076208e6b6843f5808a7087897c67aad0c54694669398f889", "7b7c8357255fc37b4dae0e1af61589035fd39ff627e0938c6b3da8b4e4ec5d23", "2b8d782c1f5bac46c922cf439f6aa79f91e9ba5ffc0020d58455188a2075b334", "b61f45af2306705740742e76197a119235584ced01ef3f7cf3d4370f6c557cd1", "2775612e7cdae2780bf494c370bdcbe69c55e4a1363b1dc79ea0135e61221cce", "f3a49bb22f40885e961299abfa697a7df690a79f067bf3a4847a3ad48d826c9f", "ad724ac218dc133c0aadf4618eae21fdd0c2f3787af279846b49e2b4f97ff167",
)
}
/*
The regression test for the following invalid kademlia edge case.
Addresses used in this test are discovered as part of the simulation network
in higher level tests for streaming. They were generated randomly.
=========================================================================
Mon Apr 9 19:04:35 UTC 2018 KΛÐΞMLIΛ hive: queen's address: b4822e
population: 8 (49), NeighbourhoodSize: 2, MinBinSize: 2, MaxBinSize: 4
000 2 786c 774b | 29 774b (0) 786c (0) 7a79 (0) 7d2f (0)
001 2 d9de cf19 | 10 cf19 (0) d9de (0) d2ff (0) d2a2 (0)
002 2 8ca1 8d74 | 5 8d74 (0) 8ca1 (0) 9793 (0) 9f51 (0)
003 0 | 0
004 0 | 3 bfac (0) bcbb (0) bde9 (0)
005 0 | 0
============ DEPTH: 6 ==========================================
006 1 b660 | 1 b660 (0)
007 0 | 0
008 1 b450 | 1 b450 (0)
009 0 | 0
010 0 | 0
011 0 | 0
012 0 | 0
013 0 | 0
014 0 | 0
015 0 | 0
=========================================================================
*/
func TestKademliaCase3(t *testing.T) {
testKademliaCase(t,
"b4822e874a01b94ac3a35c821e6db131e785c2fcbb3556e84b36102caf09b091", "2ecf54ea38d58f9cfc3862e54e5854a7c506fbc640e0b38e46d7d45a19794999", "442374092be50fc7392e8dd3f6fab3158ff7f14f26ff98060aed9b2eecf0b97d", "b450a4a67fcfa3b976cf023d8f1f15052b727f712198ce901630efe2f95db191", "9a7291638eb1c989a6dd6661a42c735b23ac6605b5d3e428aa5ffe650e892c85", "67f62eeab9804cfcac02b25ebeab9113d1b9d03dd5200b1c5a324cc0163e722f", "2e4a0e4b53bca4a9d7e2734150e9f579f29a255ade18a268461b20d026c9ee90", "30dd79c5fcdaa1b106f6960c45c9fde7c046aa3d931088d98c52ab759d0b2ac4", "97936fb5a581e59753c54fa5feec493714f2218245f61f97a62eafd4699433e4", "3a2899b6e129e3e193f6e2aefb82589c948c246d2ec1d4272af32ef3b2660f44", "f0e2a8aa88e67269e9952431ef12e5b29b7f41a1871fbfc38567fad95655d607", "7fa12b3f3c5f8383bfc644b958f72a486969733fa097d8952b3eb4f7b4f73192", "360c167aad5fc992656d6010ec45fdce5bcd492ad9608bc515e2be70d4e430c1", "fe21bc969b3d8e5a64a6484a829c1e04208f26f3cd4de6afcbc172a5bd17f1f1", "b660a1f40141d7ccd282fe5bd9838744119bd1cb3780498b5173578cc5ad308f", "44dcb3370e76680e2fba8cd986ad45ff0b77ca45680ee8d950e47922c4af6226", "8ca126923d17fccb689647307b89f38aa14e2a7b9ebcf3c1e31ccf3d2291a3bc", "f0ae19ae9ce6329327cbf42baf090e084c196b0877d8c7b69997e0123be23ef8", "d2a2a217385158e3e1e348883a14bc423e57daa12077e8c49797d16121ea0810", "f5467ccd85bb4ebe768527db520a210459969a5f1fae6e07b43f519799f0b224", "68be5fd9f9d142a5099e3609011fe3bab7bb992c595999e31e0b3d1668dfb3cf", "4d49a8a476e4934afc6b5c36db9bece3ed1804f20b952da5a21b2b0de766aa73", "ea7155745ef3fb2d099513887a2ba279333ced65c65facbd890ce58bd3fce772", "cf19f51f4e848053d289ac95a9138cdd23fc3077ae913cd58cda8cc7a521b2e1", "590b1cd41c7e6144e76b5cd515a3a4d0a4317624620a3f1685f43ae68bdcd890", "d2ffe0626b5f94a7e00fa0b506e7455a3d9399c15800db108d5e715ef5f6e346", "69630878c50a91f6c2edd23a706bfa0b50bd5661672a37d67bab38e6bca3b698", "445e9067079899bb5faafaca915ae6c0f6b1b730a5a628835dd827636f7feb1e", "6461c77491f1c4825958949f23c153e6e1759a5be53abbcee17c9da3867f3141", "23a235f4083771ccc207771daceda700b525a59ab586788d4f6892e69e34a6e2", "bde99f79ef41a81607ddcf92b9f95dcbc6c3537e91e8bf740e193dc73b19485e", "177957c0e5f0fbd12b88022a91768095d193830986caec8d888097d3ff4310b8", "bcbbdbaa4cdf8352422072f332e05111b732354a35c4d7c617ce1fc3b8b42a5a", "774b6717fdfb0d1629fb9d4c04a9ca40079ae2955d7f82e897477055ed017abb", "16443bf625be6d39ecaa6f114e5d2c1d47a64bfd3c13808d94b55b6b6acef2ee", "8d7495d9008066505ed00ce8198af82bfa5a6b4c08768b4c9fb3aa4eb0b0cca2", "15800849a53349508cb382959527f6c3cf1a46158ff1e6e2316b7dea7967e35f", "7a792f0f4a2b731781d1b244b2a57947f1a2e32900a1c0793449f9f7ae18a7b7", "5e517c2832c9deaa7df77c7bad4d20fd6eda2b7815e155e68bc48238fac1416f", "9f51a14f0019c72bd1d472706d8c80a18c1873c6a0663e754b60eae8094483d7", "7d2fabb565122521d22ba99fed9e5be6a458fbc93156d54db27d97a00b8c3a97", "786c9e412a7db4ec278891fa534caa9a1d1a028c631c6f3aeb9c4d96ad895c36", "3bd6341d40641c2632a5a0cd7a63553a04e251efd7195897a1d27e02a7a8bfde", "31efd1f5fb57b8cff0318d77a1a9e8d67e1d1c8d18ce90f99c3a240dff48cdc8", "d9de3e1156ce1380150948acbcfecd99c96e7f4b0bc97745f4681593d017f74f", "427a2201e09f9583cd990c03b81b58148c297d474a3b50f498d83b1c7a9414cd", "bfaca11596d3dec406a9fcf5d97536516dfe7f0e3b12078428a7e1700e25218a", "351c4770a097248a650008152d0cab5825d048bef770da7f3364f59d1e721bc0", "ee00f205d1486b2be7381d962bd2867263758e880529e4e2bfedfa613bbc0e71", "6aa3b6418d89e3348e4859c823ef4d6d7cd46aa7f7e77aba586c4214d760d8f8",
)
}
/*
The regression test for the following invalid kademlia edge case.
Addresses used in this test are discovered as part of the simulation network
in higher level tests for streaming. They were generated randomly.
=========================================================================
Mon Apr 9 19:16:25 UTC 2018 KΛÐΞMLIΛ hive: queen's address: 9a90fe
population: 8 (49), NeighbourhoodSize: 2, MinBinSize: 2, MaxBinSize: 4
000 2 72ef 4e6c | 24 0b1e (0) 0d66 (0) 17f5 (0) 17e8 (0)
001 2 fc2b fa47 | 13 fa47 (0) fc2b (0) fffd (0) ecef (0)
002 2 b847 afa8 | 6 afa8 (0) ad77 (0) bb7c (0) b847 (0)
003 0 | 0
004 0 | 4 91fc (0) 957d (0) 9482 (0) 949a (0)
============ DEPTH: 5 ==========================================
005 1 9ccf | 1 9ccf (0)
006 0 | 0
007 1 9bb2 | 1 9bb2 (0)
008 0 | 0
009 0 | 0
010 0 | 0
011 0 | 0
012 0 | 0
013 0 | 0
014 0 | 0
015 0 | 0
=========================================================================
*/
func TestKademliaCase4(t *testing.T) {
testKademliaCase(t,
"9a90fe3506277244549064b8c3276abb06284a199d9063a97331947f2b7da7f4",
"c19359eddef24b7be1a833b4475f212cd944263627a53f9ef4837d106c247730", "fc2b6fef99ef947f7e57c3df376891769e2a2fd83d2b8e634e0fc1e91eaa080c", "ecefc0e1a8ea7bb4b48c469e077401fce175dd75294255b96c4e54f6a2950a55", "bb7ce598efc056bba343cc2614aa3f67a575557561290b44c73a63f8f433f9f7", "55fbee6ca52dfd7f0be0db969ee8e524b654ab4f0cce7c05d83887d7d2a15460", "afa852b6b319998c6a283cc0c82d2f5b8e9410075d7700f3012761f1cfbd0f76", "36c370cfb63f2087971ba6e58d7585b04e16b8f0da335efb91554c2dd8fe191c", "6be41e029985edebc901fb77fc4fb65516b6d85086e2a98bfa3159c99391e585", "dd3cfc72ea553e7d2b28f0037a65646b30955b929d29ba4c40f4a2a811248e77", "da3a8f18e09c7b0ca235c4e33e1441a5188f1df023138bf207753ee63e768f7d", "de9e3ab4dc572d54a2d4b878329fd832bb51a149f4ce167316eeb177b61e7e01", "4e6c1ecde6ed917706257fe020a1d02d2e9d87fca4c85f0f7b132491008c5032", "72ef04b77a070e13463b3529dd312bcacfb7a12d20dc597f5ec3de0501e9b834", "3fef57186675d524ab8bb1f54ba8cb68610babca1247c0c46dbb60aed003c69d", "1d8e6b71f7a052865d6558d4ba44ad5fab7b908cc1badf5766822e1c20d0d823", "6be2f2b4ffa173014d4ec7df157d289744a2bda54bb876b264ccfa898a0da315", "b0ba3fff8643f9985c744327b0c4c869763509fd5da2de9a80a4a0a082021255", "9ccf40b9406ba2e6567101fb9b4e5334a9ec74263eff47267da266ba45e6c158", "d7347f02c180a448e60f73931845062ce00048750b584790278e9c93ef31ad81", "b68c6359a22b3bee6fecb8804311cfd816648ea31d530c9fb48e477e029d707a", "0d668a18ad7c2820214df6df95a6c855ce19fb1cb765f8ca620e45db76686d37", "3fbd2663bff65533246f1fabb9f38086854c6218aeb3dc9ac6ac73d4f0988f91", "949aa5719ca846052bfaa1b38c97b6eca3df3e24c0e0630042c6bccafbb4cdb5", "77b8a2b917bef5d54f3792183b014cca7798f713ff14fe0b2ac79b4c9f6f996d", "17e853cbd8dc00cba3cd9ffeb36f26a9f41a0eb92f80b62c2cda16771c935388", "5f682ed7a8cf2f98387c3def7c97f9f05ae39e39d393eeca3cf621268d6347f8", "ad77487eaf11fd8084ba4517a51766eb0e5b77dd3492dfa79aa3a2802fb29d20", "d247cfcacf9a8200ebaddf639f8c926ab0a001abe682f40df3785e80ed124e91", "195589442e11907eede1ee6524157f1125f68399f3170c835ff81c603b069f6c", "5b5ca0a67f3c54e7d3a6a862ef56168ec9ed1f4945e6c24de6d336b2be2e6f8c", "56430e4caa253015f1f998dce4a48a88af1953f68e94eca14f53074ae9c3e467", "0b1eed6a5bf612d1d8e08f5c546f3d12e838568fd3aa43ed4c537f10c65545d6", "7058db19a56dfff01988ac4a62e1310597f9c8d7ebde6890dadabf047d722d39", "b847380d6888ff7cd11402d086b19eccc40950b52c9d67e73cb4f8462f5df078", "df6c048419a2290ab546d527e9eeba349e7f7e1759bafe4adac507ce60ef9670", "91fc5b4b24fc3fbfea7f9a3d0f0437cb5733c0c2345d8bdffd7048d6e3b8a37b", "957d8ea51b37523952b6f5ae95462fcd4aed1483ef32cc80b69580aaeee03606", "efa82e4e91ad9ab781977400e9ac0bb9de7389aaedebdae979b73d1d3b8d72b0", "7400c9f3f3fc0cc6fe8cc37ab24b9771f44e9f78be913f73cd35fc4be030d6bd", "9bb28f4122d61f7bb56fe27ef706159fb802fef0f5de9dfa32c9c5b3183235f1", "40a8de6e98953498b806614532ea4abf8b99ad7f9719fb68203a6eae2efa5b2a", "412de0b218b8f7dcacc9205cd16ffb4eca5b838f46a2f4f9f534026061a47308", "17f56ecad51075080680ad9faa0fd8946b824d3296ddb20be07f9809fe8d1c5a", "fffd4e7ae885a41948a342b6647955a7ec8a8039039f510cff467ef597675457", "35e78e11b5ac46a29dd04ab0043136c3291f4ca56cb949ace33111ed56395463", "94824fc80230af82077c83bfc01dc9675b1f9d3d538b1e5f41c21ac753598691", "fa470ae314ca3fce493f21b423eef2a49522e09126f6f2326fa3c9cac0b344f7", "7078860b5b621b21ac7b95f9fc4739c8235ce5066a8b9bd7d938146a34fa88ec", "eea53560f0428bfd2eca4f86a5ce9dec5ff1309129a975d73465c1c9e9da71d1",
)
}
/*
The regression test for the following invalid kademlia edge case.
Addresses used in this test are discovered as part of the simulation network
in higher level tests for streaming. They were generated randomly.
=========================================================================
Mon Apr 9 19:25:18 UTC 2018 KΛÐΞMLIΛ hive: queen's address: 5dd5c7
population: 13 (49), NeighbourhoodSize: 2, MinBinSize: 2, MaxBinSize: 4
000 2 e528 fad0 | 22 fad0 (0) e528 (0) e3bb (0) ed13 (0)
001 3 3f30 18e0 1dd3 | 7 3f30 (0) 23db (0) 10b6 (0) 18e0 (0)
002 4 7c54 7804 61e4 60f9 | 10 61e4 (0) 60f9 (0) 636c (0) 7186 (0)
003 2 40ae 4bae | 5 4bae (0) 4d5c (0) 403a (0) 40ae (0)
004 0 | 0
005 0 | 3 5808 (0) 5a0e (0) 5bdb (0)
============ DEPTH: 6 ==========================================
006 2 5f14 5f61 | 2 5f14 (0) 5f61 (0)
007 0 | 0
008 0 | 0
009 0 | 0
010 0 | 0
011 0 | 0
012 0 | 0
013 0 | 0
014 0 | 0
015 0 | 0
=========================================================================
*/
func TestKademliaCase5(t *testing.T) {
testKademliaCase(t,
"5dd5c77dd9006a800478fcebb02d48d4036389e7d3c8f6a83b97dbad13f4c0a9",
"78fafa0809929a1279ece089a51d12457c2d8416dff859aeb2ccc24bb50df5ec", "1dd39b1257e745f147cbbc3cadd609ccd6207c41056dbc4254bba5d2527d3ee5", "5f61dd66d4d94aec8fcc3ce0e7885c7edf30c43143fa730e2841c5d28e3cd081", "8aa8b0472cb351d967e575ad05c4b9f393e76c4b01ef4b3a54aac5283b78abc9", "4502f385152a915b438a6726ce3ea9342e7a6db91a23c2f6bee83a885ed7eb82", "718677a504249db47525e959ef1784bed167e1c46f1e0275b9c7b588e28a3758", "7c54c6ed1f8376323896ed3a4e048866410de189e9599dd89bf312ca4adb96b5", "18e03bd3378126c09e799a497150da5c24c895aedc84b6f0dbae41fc4bac081a", "23db76ac9e6e58d9f5395ca78252513a7b4118b4155f8462d3d5eec62486cadc", "40ae0e8f065e96c7adb7fa39505136401f01780481e678d718b7f6dbb2c906ec", "c1539998b8bae19d339d6bbb691f4e9daeb0e86847545229e80fe0dffe716e92", "ed139d73a2699e205574c08722ca9f030ad2d866c662f1112a276b91421c3cb9", "5bdb19584b7a36d09ca689422ef7e6bb681b8f2558a6b2177a8f7c812f631022", "636c9de7fe234ffc15d67a504c69702c719f626c17461d3f2918e924cd9d69e2", "de4455413ff9335c440d52458c6544191bd58a16d85f700c1de53b62773064ea", "de1963310849527acabc7885b6e345a56406a8f23e35e436b6d9725e69a79a83", "a80a50a467f561210a114cba6c7fb1489ed43a14d61a9edd70e2eb15c31f074d", "7804f12b8d8e6e4b375b242058242068a3809385e05df0e64973cde805cf729c", "60f9aa320c02c6f2e6370aa740cf7cea38083fa95fca8c99552cda52935c1520", "d8da963602390f6c002c00ce62a84b514edfce9ebde035b277a957264bb54d21", "8463d93256e026fe436abad44697152b9a56ac8e06a0583d318e9571b83d073c", "9a3f78fcefb9a05e40a23de55f6153d7a8b9d973ede43a380bf46bb3b3847de1", "e3bb576f4b3760b9ca6bff59326f4ebfc4a669d263fb7d67ab9797adea54ed13", "4d5cdbd6dcca5bdf819a0fe8d175dc55cc96f088d37462acd5ea14bc6296bdbe", "5a0ed28de7b5258c727cb85447071c74c00a5fbba9e6bc0393bc51944d04ab2a", "61e4ddb479c283c638f4edec24353b6cc7a3a13b930824aad016b0996ca93c47", "7e3610868acf714836cafaaa7b8c009a9ac6e3a6d443e5586cf661530a204ee2", "d74b244d4345d2c86e30a097105e4fb133d53c578320285132a952cdaa64416e", "cfeed57d0f935bfab89e3f630a7c97e0b1605f0724d85a008bbfb92cb47863a8", "580837af95055670e20d494978f60c7f1458dc4b9e389fc7aa4982b2aca3bce3", "df55c0c49e6c8a83d82dfa1c307d3bf6a20e18721c80d8ec4f1f68dc0a137ced", "5f149c51ce581ba32a285439a806c063ced01ccd4211cd024e6a615b8f216f95", "1eb76b00aeb127b10dd1b7cd4c3edeb4d812b5a658f0feb13e85c4d2b7c6fe06", "7a56ba7c3fb7cbfb5561a46a75d95d7722096b45771ec16e6fa7bbfab0b35dfe", "4bae85ad88c28470f0015246d530adc0cd1778bdd5145c3c6b538ee50c4e04bd", "afd1892e2a7145c99ec0ebe9ded0d3fec21089b277a68d47f45961ec5e39e7e0", "953138885d7b36b0ef79e46030f8e61fd7037fbe5ce9e0a94d728e8c8d7eab86", "de761613ef305e4f628cb6bf97d7b7dc69a9d513dc233630792de97bcda777a6", "3f3087280063d09504c084bbf7fdf984347a72b50d097fd5b086ffabb5b3fb4c", "7d18a94bb1ebfdef4d3e454d2db8cb772f30ca57920dd1e402184a9e598581a0", "a7d6fbdc9126d9f10d10617f49fb9f5474ffe1b229f76b7dd27cebba30eccb5d", "fad0246303618353d1387ec10c09ee991eb6180697ed3470ed9a6b377695203d", "1cf66e09ea51ee5c23df26615a9e7420be2ac8063f28f60a3bc86020e94fe6f3", "8269cdaa153da7c358b0b940791af74d7c651cd4d3f5ed13acfe6d0f2c539e7f", "90d52eaaa60e74bf1c79106113f2599471a902d7b1c39ac1f55b20604f453c09", "9788fd0c09190a3f3d0541f68073a2f44c2fcc45bb97558a7c319f36c25a75b3", "10b68fc44157ecfdae238ee6c1ce0333f906ad04d1a4cb1505c8e35c3c87fbb0", "e5284117fdf3757920475c786e0004cb00ba0932163659a89b36651a01e57394", "403ad51d911e113dcd5f9ff58c94f6d278886a2a4da64c3ceca2083282c92de3",
)
}
func newTestDiscoveryPeer(addr pot.Address, kad *Kademlia) *Peer {
rw := &p2p.MsgPipeRW{}
p := p2p.NewPeer(enode.ID{}, "foo", []p2p.Cap{})

12
swarm/network/simulations/discovery/discovery_test.go
Unescape View File

@ -82,7 +82,7 @@ func getDbStore(nodeID string) (*state.DBStore, error) {
}
var (
nodeCount = flag.Int("nodes", 10, "number of nodes to create (default 10)")
nodeCount = flag.Int("nodes", 32, "number of nodes to create (default 32)")
initCount = flag.Int("conns", 1, "number of originally connected peers (default 1)")
loglevel = flag.Int("loglevel", 3, "verbosity of logs")
rawlog = flag.Bool("rawlog", false, "remove terminal formatting from logs")
@ -151,7 +151,6 @@ func testDiscoverySimulationSimAdapter(t *testing.T, nodes, conns int) {
}
func testDiscoverySimulation(t *testing.T, nodes, conns int, adapter adapters.NodeAdapter) {
t.Skip("discovery tests depend on suggestpeer, which is unreliable after kademlia depth change.")
startedAt := time.Now()
result, err := discoverySimulation(nodes, conns, adapter)
if err != nil {
@ -179,7 +178,6 @@ func testDiscoverySimulation(t *testing.T, nodes, conns int, adapter adapters.No
}
func testDiscoveryPersistenceSimulation(t *testing.T, nodes, conns int, adapter adapters.NodeAdapter) map[int][]byte {
t.Skip("discovery tests depend on suggestpeer, which is unreliable after kademlia depth change.")
persistenceEnabled = true
discoveryEnabled = true
@ -269,10 +267,10 @@ func discoverySimulation(nodes, conns int, adapter adapters.NodeAdapter) (*simul
}
healthy := &network.Health{}
if err := client.Call(&healthy, "hive_healthy", ppmap); err != nil {
if err := client.Call(&healthy, "hive_healthy", ppmap[common.Bytes2Hex(id.Bytes())]); err != nil {
return false, fmt.Errorf("error getting node health: %s", err)
}
log.Info(fmt.Sprintf("node %4s healthy: connected nearest neighbours: %v, know nearest neighbours: %v,\n\n%v", id, healthy.ConnectNN, healthy.KnowNN, healthy.Hive))
log.Debug(fmt.Sprintf("node %4s healthy: connected nearest neighbours: %v, know nearest neighbours: %v,\n\n%v", id, healthy.ConnectNN, healthy.KnowNN, healthy.Hive))
return healthy.KnowNN && healthy.ConnectNN, nil
}
@ -354,7 +352,7 @@ func discoveryPersistenceSimulation(nodes, conns int, adapter adapters.NodeAdapt
healthy := &network.Health{}
addr := id.String()
ppmap := network.NewPeerPotMap(network.NewKadParams().NeighbourhoodSize, addrs)
if err := client.Call(&healthy, "hive_healthy", ppmap); err != nil {
if err := client.Call(&healthy, "hive_healthy", ppmap[common.Bytes2Hex(id.Bytes())]); err != nil {
return fmt.Errorf("error getting node health: %s", err)
}
@ -427,7 +425,7 @@ func discoveryPersistenceSimulation(nodes, conns int, adapter adapters.NodeAdapt
healthy := &network.Health{}
ppmap := network.NewPeerPotMap(network.NewKadParams().NeighbourhoodSize, addrs)
if err := client.Call(&healthy, "hive_healthy", ppmap); err != nil {
if err := client.Call(&healthy, "hive_healthy", ppmap[common.Bytes2Hex(id.Bytes())]); err != nil {
return false, fmt.Errorf("error getting node health: %s", err)
}
log.Info(fmt.Sprintf("node %4s healthy: got nearest neighbours: %v, know nearest neighbours: %v", id, healthy.ConnectNN, healthy.KnowNN))

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