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.
250 lines
6.7 KiB
250 lines
6.7 KiB
package conn
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
"github.com/stretchr/testify/require"
|
|
crypto "github.com/tendermint/tendermint/crypto"
|
|
cmn "github.com/tendermint/tmlibs/common"
|
|
)
|
|
|
|
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 = crypto.GenPrivKeyEd25519()
|
|
var fooPubKey = fooPrvKey.PubKey()
|
|
var barPrvKey = crypto.GenPrivKeyEd25519()
|
|
var barPubKey = barPrvKey.PubKey()
|
|
|
|
// Make connections from both sides in parallel.
|
|
var trs, ok = cmn.Parallel(
|
|
func(_ int) (val interface{}, err error, abort bool) {
|
|
fooSecConn, err = MakeSecretConnection(fooConn, fooPrvKey)
|
|
if err != nil {
|
|
tb.Errorf("Failed to establish SecretConnection for foo: %v", err)
|
|
return nil, err, true
|
|
}
|
|
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, err, false
|
|
}
|
|
return nil, nil, false
|
|
},
|
|
func(_ int) (val interface{}, err error, abort bool) {
|
|
barSecConn, err = MakeSecretConnection(barConn, barPrvKey)
|
|
if barSecConn == nil {
|
|
tb.Errorf("Failed to establish SecretConnection for bar: %v", err)
|
|
return nil, err, true
|
|
}
|
|
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, nil, false
|
|
}
|
|
return nil, nil, false
|
|
},
|
|
)
|
|
|
|
require.Nil(tb, trs.FirstError())
|
|
require.True(tb, ok, "Unexpected task abortion")
|
|
|
|
return
|
|
}
|
|
|
|
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 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, cmn.RandStr((cmn.RandInt()%(dataMaxSize*5))+1))
|
|
barWrites = append(barWrites, cmn.RandStr((cmn.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{}, error, bool) {
|
|
// Initiate cryptographic private key and secret connection trhough nodeConn.
|
|
nodePrvKey := crypto.GenPrivKeyEd25519()
|
|
nodeSecretConn, err := MakeSecretConnection(nodeConn, nodePrvKey)
|
|
if err != nil {
|
|
t.Errorf("Failed to establish SecretConnection for node: %v", err)
|
|
return nil, err, true
|
|
}
|
|
// In parallel, handle some reads and writes.
|
|
var trs, ok = cmn.Parallel(
|
|
func(_ int) (interface{}, error, bool) {
|
|
// 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, err, true
|
|
}
|
|
if n != len(nodeWrite) {
|
|
err = fmt.Errorf("Failed to write all bytes. Expected %v, wrote %v", len(nodeWrite), n)
|
|
t.Error(err)
|
|
return nil, err, true
|
|
}
|
|
}
|
|
if err := nodeConn.PipeWriter.Close(); err != nil {
|
|
t.Error(err)
|
|
return nil, err, true
|
|
}
|
|
return nil, nil, false
|
|
},
|
|
func(_ int) (interface{}, error, bool) {
|
|
// Node reads:
|
|
readBuffer := make([]byte, dataMaxSize)
|
|
for {
|
|
n, err := nodeSecretConn.Read(readBuffer)
|
|
if err == io.EOF {
|
|
return nil, nil, false
|
|
} else if err != nil {
|
|
t.Errorf("Failed to read from nodeSecretConn: %v", err)
|
|
return nil, err, true
|
|
}
|
|
*nodeReads = append(*nodeReads, string(readBuffer[:n]))
|
|
}
|
|
if err := nodeConn.PipeReader.Close(); err != nil {
|
|
t.Error(err)
|
|
return nil, err, true
|
|
}
|
|
return nil, nil, false
|
|
},
|
|
)
|
|
assert.True(t, ok, "Unexpected task abortion")
|
|
|
|
// If error:
|
|
if trs.FirstError() != nil {
|
|
return nil, trs.FirstError(), true
|
|
}
|
|
|
|
// Otherwise:
|
|
return nil, nil, false
|
|
}
|
|
}
|
|
|
|
// 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)
|
|
|
|
}
|
|
|
|
func BenchmarkSecretConnection(b *testing.B) {
|
|
b.StopTimer()
|
|
fooSecConn, barSecConn := makeSecretConnPair(b)
|
|
fooWriteText := cmn.RandStr(dataMaxSize)
|
|
// 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.Fatalf("Failed to read from barSecConn: %v", err)
|
|
}
|
|
}
|
|
}()
|
|
|
|
b.StartTimer()
|
|
for i := 0; i < b.N; i++ {
|
|
_, err := fooSecConn.Write([]byte(fooWriteText))
|
|
if err != nil {
|
|
b.Fatalf("Failed to write to fooSecConn: %v", err)
|
|
}
|
|
}
|
|
b.StopTimer()
|
|
|
|
if err := fooSecConn.Close(); err != nil {
|
|
b.Error(err)
|
|
}
|
|
//barSecConn.Close() race condition
|
|
}
|
|
|
|
func fingerprint(bz []byte) []byte {
|
|
const fbsize = 40
|
|
if len(bz) < fbsize {
|
|
return bz
|
|
} else {
|
|
return bz[:fbsize]
|
|
}
|
|
}
|