You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
475 lines
13 KiB
475 lines
13 KiB
package conn
|
|
|
|
import (
|
|
"bufio"
|
|
"encoding/hex"
|
|
"flag"
|
|
"fmt"
|
|
"io"
|
|
"log"
|
|
"os"
|
|
"path/filepath"
|
|
"strconv"
|
|
"strings"
|
|
"sync"
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
"github.com/stretchr/testify/require"
|
|
"github.com/tendermint/tendermint/crypto"
|
|
"github.com/tendermint/tendermint/crypto/ed25519"
|
|
"github.com/tendermint/tendermint/crypto/secp256k1"
|
|
cmn "github.com/tendermint/tendermint/libs/common"
|
|
"github.com/tendermint/tendermint/libs/rand"
|
|
)
|
|
|
|
type kvstoreConn struct {
|
|
*io.PipeReader
|
|
*io.PipeWriter
|
|
}
|
|
|
|
func (drw kvstoreConn) Close() (err error) {
|
|
err2 := drw.PipeWriter.CloseWithError(io.EOF)
|
|
err1 := drw.PipeReader.Close()
|
|
if err2 != nil {
|
|
return err
|
|
}
|
|
return err1
|
|
}
|
|
|
|
// Each returned ReadWriteCloser is akin to a net.Connection
|
|
func makeKVStoreConnPair() (fooConn, barConn kvstoreConn) {
|
|
barReader, fooWriter := io.Pipe()
|
|
fooReader, barWriter := io.Pipe()
|
|
return kvstoreConn{fooReader, fooWriter}, kvstoreConn{barReader, barWriter}
|
|
}
|
|
|
|
func makeSecretConnPair(tb testing.TB) (fooSecConn, barSecConn *SecretConnection) {
|
|
|
|
var fooConn, barConn = makeKVStoreConnPair()
|
|
var fooPrvKey = ed25519.GenPrivKey()
|
|
var fooPubKey = fooPrvKey.PubKey()
|
|
var barPrvKey = ed25519.GenPrivKey()
|
|
var barPubKey = barPrvKey.PubKey()
|
|
|
|
// Make connections from both sides in parallel.
|
|
var trs, ok = cmn.Parallel(
|
|
func(_ int) (val interface{}, abort bool, err error) {
|
|
fooSecConn, err = MakeSecretConnection(fooConn, fooPrvKey)
|
|
if err != nil {
|
|
tb.Errorf("failed to establish SecretConnection for foo: %v", err)
|
|
return nil, true, err
|
|
}
|
|
remotePubBytes := fooSecConn.RemotePubKey()
|
|
if !remotePubBytes.Equals(barPubKey) {
|
|
err = fmt.Errorf("unexpected fooSecConn.RemotePubKey. Expected %v, got %v",
|
|
barPubKey, fooSecConn.RemotePubKey())
|
|
tb.Error(err)
|
|
return nil, false, err
|
|
}
|
|
return nil, false, nil
|
|
},
|
|
func(_ int) (val interface{}, abort bool, err error) {
|
|
barSecConn, err = MakeSecretConnection(barConn, barPrvKey)
|
|
if barSecConn == nil {
|
|
tb.Errorf("failed to establish SecretConnection for bar: %v", err)
|
|
return nil, true, err
|
|
}
|
|
remotePubBytes := barSecConn.RemotePubKey()
|
|
if !remotePubBytes.Equals(fooPubKey) {
|
|
err = fmt.Errorf("unexpected barSecConn.RemotePubKey. Expected %v, got %v",
|
|
fooPubKey, barSecConn.RemotePubKey())
|
|
tb.Error(err)
|
|
return nil, false, nil
|
|
}
|
|
return nil, false, nil
|
|
},
|
|
)
|
|
|
|
require.Nil(tb, trs.FirstError())
|
|
require.True(tb, ok, "Unexpected task abortion")
|
|
|
|
return fooSecConn, barSecConn
|
|
}
|
|
|
|
func TestSecretConnectionHandshake(t *testing.T) {
|
|
fooSecConn, barSecConn := makeSecretConnPair(t)
|
|
if err := fooSecConn.Close(); err != nil {
|
|
t.Error(err)
|
|
}
|
|
if err := barSecConn.Close(); err != nil {
|
|
t.Error(err)
|
|
}
|
|
}
|
|
|
|
func TestConcurrentWrite(t *testing.T) {
|
|
fooSecConn, barSecConn := makeSecretConnPair(t)
|
|
fooWriteText := rand.RandStr(dataMaxSize)
|
|
|
|
// write from two routines.
|
|
// should be safe from race according to net.Conn:
|
|
// https://golang.org/pkg/net/#Conn
|
|
n := 100
|
|
wg := new(sync.WaitGroup)
|
|
wg.Add(3)
|
|
go writeLots(t, wg, fooSecConn, fooWriteText, n)
|
|
go writeLots(t, wg, fooSecConn, fooWriteText, n)
|
|
|
|
// Consume reads from bar's reader
|
|
readLots(t, wg, barSecConn, n*2)
|
|
wg.Wait()
|
|
|
|
if err := fooSecConn.Close(); err != nil {
|
|
t.Error(err)
|
|
}
|
|
}
|
|
|
|
func TestConcurrentRead(t *testing.T) {
|
|
fooSecConn, barSecConn := makeSecretConnPair(t)
|
|
fooWriteText := rand.RandStr(dataMaxSize)
|
|
n := 100
|
|
|
|
// read from two routines.
|
|
// should be safe from race according to net.Conn:
|
|
// https://golang.org/pkg/net/#Conn
|
|
wg := new(sync.WaitGroup)
|
|
wg.Add(3)
|
|
go readLots(t, wg, fooSecConn, n/2)
|
|
go readLots(t, wg, fooSecConn, n/2)
|
|
|
|
// write to bar
|
|
writeLots(t, wg, barSecConn, fooWriteText, n)
|
|
wg.Wait()
|
|
|
|
if err := fooSecConn.Close(); err != nil {
|
|
t.Error(err)
|
|
}
|
|
}
|
|
|
|
func writeLots(t *testing.T, wg *sync.WaitGroup, conn io.Writer, txt string, n int) {
|
|
defer wg.Done()
|
|
for i := 0; i < n; i++ {
|
|
_, err := conn.Write([]byte(txt))
|
|
if err != nil {
|
|
t.Errorf("failed to write to fooSecConn: %v", err)
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
func readLots(t *testing.T, wg *sync.WaitGroup, conn io.Reader, n int) {
|
|
readBuffer := make([]byte, dataMaxSize)
|
|
for i := 0; i < n; i++ {
|
|
_, err := conn.Read(readBuffer)
|
|
assert.NoError(t, err)
|
|
}
|
|
wg.Done()
|
|
}
|
|
|
|
func TestSecretConnectionReadWrite(t *testing.T) {
|
|
fooConn, barConn := makeKVStoreConnPair()
|
|
fooWrites, barWrites := []string{}, []string{}
|
|
fooReads, barReads := []string{}, []string{}
|
|
|
|
// Pre-generate the things to write (for foo & bar)
|
|
for i := 0; i < 100; i++ {
|
|
fooWrites = append(fooWrites, rand.RandStr((rand.RandInt()%(dataMaxSize*5))+1))
|
|
barWrites = append(barWrites, rand.RandStr((rand.RandInt()%(dataMaxSize*5))+1))
|
|
}
|
|
|
|
// A helper that will run with (fooConn, fooWrites, fooReads) and vice versa
|
|
genNodeRunner := func(id string, nodeConn kvstoreConn, nodeWrites []string, nodeReads *[]string) cmn.Task {
|
|
return func(_ int) (interface{}, bool, error) {
|
|
// Initiate cryptographic private key and secret connection trhough nodeConn.
|
|
nodePrvKey := ed25519.GenPrivKey()
|
|
nodeSecretConn, err := MakeSecretConnection(nodeConn, nodePrvKey)
|
|
if err != nil {
|
|
t.Errorf("failed to establish SecretConnection for node: %v", err)
|
|
return nil, true, err
|
|
}
|
|
// In parallel, handle some reads and writes.
|
|
var trs, ok = cmn.Parallel(
|
|
func(_ int) (interface{}, bool, error) {
|
|
// Node writes:
|
|
for _, nodeWrite := range nodeWrites {
|
|
n, err := nodeSecretConn.Write([]byte(nodeWrite))
|
|
if err != nil {
|
|
t.Errorf("failed to write to nodeSecretConn: %v", err)
|
|
return nil, true, err
|
|
}
|
|
if n != len(nodeWrite) {
|
|
err = fmt.Errorf("failed to write all bytes. Expected %v, wrote %v", len(nodeWrite), n)
|
|
t.Error(err)
|
|
return nil, true, err
|
|
}
|
|
}
|
|
if err := nodeConn.PipeWriter.Close(); err != nil {
|
|
t.Error(err)
|
|
return nil, true, err
|
|
}
|
|
return nil, false, nil
|
|
},
|
|
func(_ int) (interface{}, bool, error) {
|
|
// Node reads:
|
|
readBuffer := make([]byte, dataMaxSize)
|
|
for {
|
|
n, err := nodeSecretConn.Read(readBuffer)
|
|
if err == io.EOF {
|
|
if err := nodeConn.PipeReader.Close(); err != nil {
|
|
t.Error(err)
|
|
return nil, true, err
|
|
}
|
|
return nil, false, nil
|
|
} else if err != nil {
|
|
t.Errorf("failed to read from nodeSecretConn: %v", err)
|
|
return nil, true, err
|
|
}
|
|
*nodeReads = append(*nodeReads, string(readBuffer[:n]))
|
|
}
|
|
},
|
|
)
|
|
assert.True(t, ok, "Unexpected task abortion")
|
|
|
|
// If error:
|
|
if trs.FirstError() != nil {
|
|
return nil, true, trs.FirstError()
|
|
}
|
|
|
|
// Otherwise:
|
|
return nil, false, nil
|
|
}
|
|
}
|
|
|
|
// Run foo & bar in parallel
|
|
var trs, ok = cmn.Parallel(
|
|
genNodeRunner("foo", fooConn, fooWrites, &fooReads),
|
|
genNodeRunner("bar", barConn, barWrites, &barReads),
|
|
)
|
|
require.Nil(t, trs.FirstError())
|
|
require.True(t, ok, "unexpected task abortion")
|
|
|
|
// A helper to ensure that the writes and reads match.
|
|
// Additionally, small writes (<= dataMaxSize) must be atomically read.
|
|
compareWritesReads := func(writes []string, reads []string) {
|
|
for {
|
|
// Pop next write & corresponding reads
|
|
var read, write string = "", writes[0]
|
|
var readCount = 0
|
|
for _, readChunk := range reads {
|
|
read += readChunk
|
|
readCount++
|
|
if len(write) <= len(read) {
|
|
break
|
|
}
|
|
if len(write) <= dataMaxSize {
|
|
break // atomicity of small writes
|
|
}
|
|
}
|
|
// Compare
|
|
if write != read {
|
|
t.Errorf("expected to read %X, got %X", write, read)
|
|
}
|
|
// Iterate
|
|
writes = writes[1:]
|
|
reads = reads[readCount:]
|
|
if len(writes) == 0 {
|
|
break
|
|
}
|
|
}
|
|
}
|
|
|
|
compareWritesReads(fooWrites, barReads)
|
|
compareWritesReads(barWrites, fooReads)
|
|
|
|
}
|
|
|
|
// Run go test -update from within this module
|
|
// to update the golden test vector file
|
|
var update = flag.Bool("update", false, "update .golden files")
|
|
|
|
func TestDeriveSecretsAndChallengeGolden(t *testing.T) {
|
|
goldenFilepath := filepath.Join("testdata", t.Name()+".golden")
|
|
if *update {
|
|
t.Logf("Updating golden test vector file %s", goldenFilepath)
|
|
data := createGoldenTestVectors(t)
|
|
cmn.WriteFile(goldenFilepath, []byte(data), 0644)
|
|
}
|
|
f, err := os.Open(goldenFilepath)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
defer f.Close()
|
|
scanner := bufio.NewScanner(f)
|
|
for scanner.Scan() {
|
|
line := scanner.Text()
|
|
params := strings.Split(line, ",")
|
|
randSecretVector, err := hex.DecodeString(params[0])
|
|
require.Nil(t, err)
|
|
randSecret := new([32]byte)
|
|
copy((*randSecret)[:], randSecretVector)
|
|
locIsLeast, err := strconv.ParseBool(params[1])
|
|
require.Nil(t, err)
|
|
expectedRecvSecret, err := hex.DecodeString(params[2])
|
|
require.Nil(t, err)
|
|
expectedSendSecret, err := hex.DecodeString(params[3])
|
|
require.Nil(t, err)
|
|
|
|
recvSecret, sendSecret := deriveSecrets(randSecret, locIsLeast)
|
|
require.Equal(t, expectedRecvSecret, (*recvSecret)[:], "Recv Secrets aren't equal")
|
|
require.Equal(t, expectedSendSecret, (*sendSecret)[:], "Send Secrets aren't equal")
|
|
}
|
|
}
|
|
|
|
type privKeyWithNilPubKey struct {
|
|
orig crypto.PrivKey
|
|
}
|
|
|
|
func (pk privKeyWithNilPubKey) Bytes() []byte { return pk.orig.Bytes() }
|
|
func (pk privKeyWithNilPubKey) Sign(msg []byte) ([]byte, error) { return pk.orig.Sign(msg) }
|
|
func (pk privKeyWithNilPubKey) PubKey() crypto.PubKey { return nil }
|
|
func (pk privKeyWithNilPubKey) Equals(pk2 crypto.PrivKey) bool { return pk.orig.Equals(pk2) }
|
|
|
|
func TestNilPubkey(t *testing.T) {
|
|
var fooConn, barConn = makeKVStoreConnPair()
|
|
var fooPrvKey = ed25519.GenPrivKey()
|
|
var barPrvKey = privKeyWithNilPubKey{ed25519.GenPrivKey()}
|
|
|
|
go func() {
|
|
_, err := MakeSecretConnection(barConn, barPrvKey)
|
|
assert.NoError(t, err)
|
|
}()
|
|
|
|
assert.NotPanics(t, func() {
|
|
_, err := MakeSecretConnection(fooConn, fooPrvKey)
|
|
if assert.Error(t, err) {
|
|
assert.Equal(t, "expected ed25519 pubkey, got <nil>", err.Error())
|
|
}
|
|
})
|
|
}
|
|
|
|
func TestNonEd25519Pubkey(t *testing.T) {
|
|
var fooConn, barConn = makeKVStoreConnPair()
|
|
var fooPrvKey = ed25519.GenPrivKey()
|
|
var barPrvKey = secp256k1.GenPrivKey()
|
|
|
|
go func() {
|
|
_, err := MakeSecretConnection(barConn, barPrvKey)
|
|
assert.NoError(t, err)
|
|
}()
|
|
|
|
assert.NotPanics(t, func() {
|
|
_, err := MakeSecretConnection(fooConn, fooPrvKey)
|
|
if assert.Error(t, err) {
|
|
assert.Equal(t, "expected ed25519 pubkey, got secp256k1.PubKeySecp256k1", err.Error())
|
|
}
|
|
})
|
|
}
|
|
|
|
// Creates the data for a test vector file.
|
|
// The file format is:
|
|
// Hex(diffie_hellman_secret), loc_is_least, Hex(recvSecret), Hex(sendSecret), Hex(challenge)
|
|
func createGoldenTestVectors(t *testing.T) string {
|
|
data := ""
|
|
for i := 0; i < 32; i++ {
|
|
randSecretVector := rand.RandBytes(32)
|
|
randSecret := new([32]byte)
|
|
copy((*randSecret)[:], randSecretVector)
|
|
data += hex.EncodeToString((*randSecret)[:]) + ","
|
|
locIsLeast := rand.RandBool()
|
|
data += strconv.FormatBool(locIsLeast) + ","
|
|
recvSecret, sendSecret := deriveSecrets(randSecret, locIsLeast)
|
|
data += hex.EncodeToString((*recvSecret)[:]) + ","
|
|
data += hex.EncodeToString((*sendSecret)[:]) + ","
|
|
}
|
|
return data
|
|
}
|
|
|
|
func BenchmarkWriteSecretConnection(b *testing.B) {
|
|
b.StopTimer()
|
|
b.ReportAllocs()
|
|
fooSecConn, barSecConn := makeSecretConnPair(b)
|
|
randomMsgSizes := []int{
|
|
dataMaxSize / 10,
|
|
dataMaxSize / 3,
|
|
dataMaxSize / 2,
|
|
dataMaxSize,
|
|
dataMaxSize * 3 / 2,
|
|
dataMaxSize * 2,
|
|
dataMaxSize * 7 / 2,
|
|
}
|
|
fooWriteBytes := make([][]byte, 0, len(randomMsgSizes))
|
|
for _, size := range randomMsgSizes {
|
|
fooWriteBytes = append(fooWriteBytes, rand.RandBytes(size))
|
|
}
|
|
// Consume reads from bar's reader
|
|
go func() {
|
|
readBuffer := make([]byte, dataMaxSize)
|
|
for {
|
|
_, err := barSecConn.Read(readBuffer)
|
|
if err == io.EOF {
|
|
return
|
|
} else if err != nil {
|
|
b.Errorf("failed to read from barSecConn: %v", err)
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
|
|
b.StartTimer()
|
|
for i := 0; i < b.N; i++ {
|
|
idx := rand.RandIntn(len(fooWriteBytes))
|
|
_, err := fooSecConn.Write(fooWriteBytes[idx])
|
|
if err != nil {
|
|
b.Errorf("failed to write to fooSecConn: %v", err)
|
|
return
|
|
}
|
|
}
|
|
b.StopTimer()
|
|
|
|
if err := fooSecConn.Close(); err != nil {
|
|
b.Error(err)
|
|
}
|
|
//barSecConn.Close() race condition
|
|
}
|
|
|
|
func BenchmarkReadSecretConnection(b *testing.B) {
|
|
b.StopTimer()
|
|
b.ReportAllocs()
|
|
fooSecConn, barSecConn := makeSecretConnPair(b)
|
|
randomMsgSizes := []int{
|
|
dataMaxSize / 10,
|
|
dataMaxSize / 3,
|
|
dataMaxSize / 2,
|
|
dataMaxSize,
|
|
dataMaxSize * 3 / 2,
|
|
dataMaxSize * 2,
|
|
dataMaxSize * 7 / 2,
|
|
}
|
|
fooWriteBytes := make([][]byte, 0, len(randomMsgSizes))
|
|
for _, size := range randomMsgSizes {
|
|
fooWriteBytes = append(fooWriteBytes, rand.RandBytes(size))
|
|
}
|
|
go func() {
|
|
for i := 0; i < b.N; i++ {
|
|
idx := rand.RandIntn(len(fooWriteBytes))
|
|
_, err := fooSecConn.Write(fooWriteBytes[idx])
|
|
if err != nil {
|
|
b.Errorf("failed to write to fooSecConn: %v, %v,%v", err, i, b.N)
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
|
|
b.StartTimer()
|
|
for i := 0; i < b.N; i++ {
|
|
readBuffer := make([]byte, dataMaxSize)
|
|
_, err := barSecConn.Read(readBuffer)
|
|
|
|
if err == io.EOF {
|
|
return
|
|
} else if err != nil {
|
|
b.Fatalf("Failed to read from barSecConn: %v", err)
|
|
}
|
|
}
|
|
b.StopTimer()
|
|
}
|