460 lines
14 KiB
Go
460 lines
14 KiB
Go
// Copyright (c) 2013-2016 The btcsuite developers
|
|
// Use of this source code is governed by an ISC
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package wire
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/binary"
|
|
"io"
|
|
"net"
|
|
"reflect"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/davecgh/go-spew/spew"
|
|
"github.com/lbryio/lbcd/chaincfg/chainhash"
|
|
)
|
|
|
|
// makeHeader is a convenience function to make a message header in the form of
|
|
// a byte slice. It is used to force errors when reading messages.
|
|
func makeHeader(btcnet BitcoinNet, command string,
|
|
payloadLen uint32, checksum uint32) []byte {
|
|
|
|
// The length of a bitcoin message header is 24 bytes.
|
|
// 4 byte magic number of the bitcoin network + 12 byte command + 4 byte
|
|
// payload length + 4 byte checksum.
|
|
buf := make([]byte, 24)
|
|
binary.LittleEndian.PutUint32(buf, uint32(btcnet))
|
|
copy(buf[4:], []byte(command))
|
|
binary.LittleEndian.PutUint32(buf[16:], payloadLen)
|
|
binary.LittleEndian.PutUint32(buf[20:], checksum)
|
|
return buf
|
|
}
|
|
|
|
// TestMessage tests the Read/WriteMessage and Read/WriteMessageN API.
|
|
func TestMessage(t *testing.T) {
|
|
pver := ProtocolVersion
|
|
|
|
// Create the various types of messages to test.
|
|
|
|
// MsgVersion.
|
|
addrYou := &net.TCPAddr{IP: net.ParseIP("192.168.0.1"), Port: 9246}
|
|
you := NewNetAddress(addrYou, SFNodeNetwork)
|
|
you.Timestamp = time.Time{} // Version message has zero value timestamp.
|
|
addrMe := &net.TCPAddr{IP: net.ParseIP("127.0.0.1"), Port: 9246}
|
|
me := NewNetAddress(addrMe, SFNodeNetwork)
|
|
me.Timestamp = time.Time{} // Version message has zero value timestamp.
|
|
msgVersion := NewMsgVersion(me, you, 123123, 0)
|
|
|
|
msgVerack := NewMsgVerAck()
|
|
msgGetAddr := NewMsgGetAddr()
|
|
msgAddr := NewMsgAddr()
|
|
msgGetBlocks := NewMsgGetBlocks(&chainhash.Hash{})
|
|
msgBlock := &blockOne
|
|
msgInv := NewMsgInv()
|
|
msgGetData := NewMsgGetData()
|
|
msgNotFound := NewMsgNotFound()
|
|
msgTx := NewMsgTx(1)
|
|
msgPing := NewMsgPing(123123)
|
|
msgPong := NewMsgPong(123123)
|
|
msgGetHeaders := NewMsgGetHeaders()
|
|
msgHeaders := NewMsgHeaders()
|
|
msgAlert := NewMsgAlert([]byte("payload"), []byte("signature"))
|
|
msgMemPool := NewMsgMemPool()
|
|
msgFilterAdd := NewMsgFilterAdd([]byte{0x01})
|
|
msgFilterClear := NewMsgFilterClear()
|
|
msgFilterLoad := NewMsgFilterLoad([]byte{0x01}, 10, 0, BloomUpdateNone)
|
|
bh := NewBlockHeader(1, &chainhash.Hash{}, &chainhash.Hash{}, &chainhash.Hash{}, 0, 0)
|
|
msgMerkleBlock := NewMsgMerkleBlock(bh)
|
|
msgReject := NewMsgReject("block", RejectDuplicate, "duplicate block")
|
|
msgGetCFilters := NewMsgGetCFilters(GCSFilterRegular, 0, &chainhash.Hash{})
|
|
msgGetCFHeaders := NewMsgGetCFHeaders(GCSFilterRegular, 0, &chainhash.Hash{})
|
|
msgGetCFCheckpt := NewMsgGetCFCheckpt(GCSFilterRegular, &chainhash.Hash{})
|
|
msgCFilter := NewMsgCFilter(GCSFilterRegular, &chainhash.Hash{},
|
|
[]byte("payload"))
|
|
msgCFHeaders := NewMsgCFHeaders()
|
|
msgCFCheckpt := NewMsgCFCheckpt(GCSFilterRegular, &chainhash.Hash{}, 0)
|
|
|
|
tests := []struct {
|
|
in Message // Value to encode
|
|
out Message // Expected decoded value
|
|
pver uint32 // Protocol version for wire encoding
|
|
btcnet BitcoinNet // Network to use for wire encoding
|
|
bytes int // Expected num bytes read/written
|
|
}{
|
|
{msgVersion, msgVersion, pver, MainNet, 125},
|
|
{msgVerack, msgVerack, pver, MainNet, 24},
|
|
{msgGetAddr, msgGetAddr, pver, MainNet, 24},
|
|
{msgAddr, msgAddr, pver, MainNet, 25},
|
|
{msgGetBlocks, msgGetBlocks, pver, MainNet, 61},
|
|
{msgBlock, msgBlock, pver, MainNet, 271},
|
|
{msgInv, msgInv, pver, MainNet, 25},
|
|
{msgGetData, msgGetData, pver, MainNet, 25},
|
|
{msgNotFound, msgNotFound, pver, MainNet, 25},
|
|
{msgTx, msgTx, pver, MainNet, 34},
|
|
{msgPing, msgPing, pver, MainNet, 32},
|
|
{msgPong, msgPong, pver, MainNet, 32},
|
|
{msgGetHeaders, msgGetHeaders, pver, MainNet, 61},
|
|
{msgHeaders, msgHeaders, pver, MainNet, 25},
|
|
{msgAlert, msgAlert, pver, MainNet, 42},
|
|
{msgMemPool, msgMemPool, pver, MainNet, 24},
|
|
{msgFilterAdd, msgFilterAdd, pver, MainNet, 26},
|
|
{msgFilterClear, msgFilterClear, pver, MainNet, 24},
|
|
{msgFilterLoad, msgFilterLoad, pver, MainNet, 35},
|
|
{msgMerkleBlock, msgMerkleBlock, pver, MainNet, 142},
|
|
{msgReject, msgReject, pver, MainNet, 79},
|
|
{msgGetCFilters, msgGetCFilters, pver, MainNet, 61},
|
|
{msgGetCFHeaders, msgGetCFHeaders, pver, MainNet, 61},
|
|
{msgGetCFCheckpt, msgGetCFCheckpt, pver, MainNet, 57},
|
|
{msgCFilter, msgCFilter, pver, MainNet, 65},
|
|
{msgCFHeaders, msgCFHeaders, pver, MainNet, 90},
|
|
{msgCFCheckpt, msgCFCheckpt, pver, MainNet, 58},
|
|
}
|
|
|
|
t.Logf("Running %d tests", len(tests))
|
|
for i, test := range tests {
|
|
// Encode to wire format.
|
|
var buf bytes.Buffer
|
|
nw, err := WriteMessageN(&buf, test.in, test.pver, test.btcnet)
|
|
if err != nil {
|
|
t.Errorf("WriteMessage #%d error %v", i, err)
|
|
continue
|
|
}
|
|
|
|
// Ensure the number of bytes written match the expected value.
|
|
if nw != test.bytes {
|
|
t.Errorf("WriteMessage #%d unexpected num bytes "+
|
|
"written - got %d, want %d", i, nw, test.bytes)
|
|
}
|
|
|
|
// Decode from wire format.
|
|
rbuf := bytes.NewReader(buf.Bytes())
|
|
nr, msg, _, err := ReadMessageN(rbuf, test.pver, test.btcnet)
|
|
if err != nil {
|
|
t.Errorf("ReadMessage #%d error %v, msg %v", i, err,
|
|
spew.Sdump(msg))
|
|
continue
|
|
}
|
|
if !reflect.DeepEqual(msg, test.out) {
|
|
t.Errorf("ReadMessage #%d\n got: %v want: %v", i,
|
|
spew.Sdump(msg), spew.Sdump(test.out))
|
|
continue
|
|
}
|
|
|
|
// Ensure the number of bytes read match the expected value.
|
|
if nr != test.bytes {
|
|
t.Errorf("ReadMessage #%d unexpected num bytes read - "+
|
|
"got %d, want %d", i, nr, test.bytes)
|
|
}
|
|
}
|
|
|
|
// Do the same thing for Read/WriteMessage, but ignore the bytes since
|
|
// they don't return them.
|
|
t.Logf("Running %d tests", len(tests))
|
|
for i, test := range tests {
|
|
// Encode to wire format.
|
|
var buf bytes.Buffer
|
|
err := WriteMessage(&buf, test.in, test.pver, test.btcnet)
|
|
if err != nil {
|
|
t.Errorf("WriteMessage #%d error %v", i, err)
|
|
continue
|
|
}
|
|
|
|
// Decode from wire format.
|
|
rbuf := bytes.NewReader(buf.Bytes())
|
|
msg, _, err := ReadMessage(rbuf, test.pver, test.btcnet)
|
|
if err != nil {
|
|
t.Errorf("ReadMessage #%d error %v, msg %v", i, err,
|
|
spew.Sdump(msg))
|
|
continue
|
|
}
|
|
if !reflect.DeepEqual(msg, test.out) {
|
|
t.Errorf("ReadMessage #%d\n got: %v want: %v", i,
|
|
spew.Sdump(msg), spew.Sdump(test.out))
|
|
continue
|
|
}
|
|
}
|
|
}
|
|
|
|
// TestReadMessageWireErrors performs negative tests against wire decoding into
|
|
// concrete messages to confirm error paths work correctly.
|
|
func TestReadMessageWireErrors(t *testing.T) {
|
|
pver := ProtocolVersion
|
|
btcnet := MainNet
|
|
|
|
// Ensure message errors are as expected with no function specified.
|
|
wantErr := "something bad happened"
|
|
testErr := MessageError{Description: wantErr}
|
|
if testErr.Error() != wantErr {
|
|
t.Errorf("MessageError: wrong error - got %v, want %v",
|
|
testErr.Error(), wantErr)
|
|
}
|
|
|
|
// Ensure message errors are as expected with a function specified.
|
|
wantFunc := "foo"
|
|
testErr = MessageError{Func: wantFunc, Description: wantErr}
|
|
if testErr.Error() != wantFunc+": "+wantErr {
|
|
t.Errorf("MessageError: wrong error - got %v, want %v",
|
|
testErr.Error(), wantErr)
|
|
}
|
|
|
|
// Wire encoded bytes for main and testnet3 networks magic identifiers.
|
|
testNet3Bytes := makeHeader(TestNet3, "", 0, 0)
|
|
|
|
// Wire encoded bytes for a message that exceeds max overall message
|
|
// length.
|
|
mpl := uint32(MaxMessagePayload)
|
|
exceedMaxPayloadBytes := makeHeader(btcnet, "getaddr", mpl+1, 0)
|
|
|
|
// Wire encoded bytes for a command which is invalid utf-8.
|
|
badCommandBytes := makeHeader(btcnet, "bogus", 0, 0)
|
|
badCommandBytes[4] = 0x81
|
|
|
|
// Wire encoded bytes for a command which is valid, but not supported.
|
|
unsupportedCommandBytes := makeHeader(btcnet, "bogus", 0, 0)
|
|
|
|
// Wire encoded bytes for a message which exceeds the max payload for
|
|
// a specific message type.
|
|
exceedTypePayloadBytes := makeHeader(btcnet, "getaddr", 1, 0)
|
|
|
|
// Wire encoded bytes for a message which does not deliver the full
|
|
// payload according to the header length.
|
|
shortPayloadBytes := makeHeader(btcnet, "version", 115, 0)
|
|
|
|
// Wire encoded bytes for a message with a bad checksum.
|
|
badChecksumBytes := makeHeader(btcnet, "version", 2, 0xbeef)
|
|
badChecksumBytes = append(badChecksumBytes, []byte{0x0, 0x0}...)
|
|
|
|
// Wire encoded bytes for a message which has a valid header, but is
|
|
// the wrong format. An addr starts with a varint of the number of
|
|
// contained in the message. Claim there is two, but don't provide
|
|
// them. At the same time, forge the header fields so the message is
|
|
// otherwise accurate.
|
|
badMessageBytes := makeHeader(btcnet, "addr", 1, 0xeaadc31c)
|
|
badMessageBytes = append(badMessageBytes, 0x2)
|
|
|
|
// Wire encoded bytes for a message which the header claims has 15k
|
|
// bytes of data to discard.
|
|
discardBytes := makeHeader(btcnet, "bogus", 15*1024, 0)
|
|
|
|
tests := []struct {
|
|
buf []byte // Wire encoding
|
|
pver uint32 // Protocol version for wire encoding
|
|
btcnet BitcoinNet // Bitcoin network for wire encoding
|
|
max int // Max size of fixed buffer to induce errors
|
|
readErr error // Expected read error
|
|
bytes int // Expected num bytes read
|
|
}{
|
|
// Latest protocol version with intentional read errors.
|
|
|
|
// Short header.
|
|
{
|
|
[]byte{},
|
|
pver,
|
|
btcnet,
|
|
0,
|
|
io.EOF,
|
|
0,
|
|
},
|
|
|
|
// Wrong network. Want MainNet, but giving TestNet3.
|
|
{
|
|
testNet3Bytes,
|
|
pver,
|
|
btcnet,
|
|
len(testNet3Bytes),
|
|
&MessageError{},
|
|
24,
|
|
},
|
|
|
|
// Exceed max overall message payload length.
|
|
{
|
|
exceedMaxPayloadBytes,
|
|
pver,
|
|
btcnet,
|
|
len(exceedMaxPayloadBytes),
|
|
&MessageError{},
|
|
24,
|
|
},
|
|
|
|
// Invalid UTF-8 command.
|
|
{
|
|
badCommandBytes,
|
|
pver,
|
|
btcnet,
|
|
len(badCommandBytes),
|
|
&MessageError{},
|
|
24,
|
|
},
|
|
|
|
// Valid, but unsupported command.
|
|
{
|
|
unsupportedCommandBytes,
|
|
pver,
|
|
btcnet,
|
|
len(unsupportedCommandBytes),
|
|
&MessageError{},
|
|
24,
|
|
},
|
|
|
|
// Exceed max allowed payload for a message of a specific type.
|
|
{
|
|
exceedTypePayloadBytes,
|
|
pver,
|
|
btcnet,
|
|
len(exceedTypePayloadBytes),
|
|
&MessageError{},
|
|
24,
|
|
},
|
|
|
|
// Message with a payload shorter than the header indicates.
|
|
{
|
|
shortPayloadBytes,
|
|
pver,
|
|
btcnet,
|
|
len(shortPayloadBytes),
|
|
io.EOF,
|
|
24,
|
|
},
|
|
|
|
// Message with a bad checksum.
|
|
{
|
|
badChecksumBytes,
|
|
pver,
|
|
btcnet,
|
|
len(badChecksumBytes),
|
|
&MessageError{},
|
|
26,
|
|
},
|
|
|
|
// Message with a valid header, but wrong format.
|
|
{
|
|
badMessageBytes,
|
|
pver,
|
|
btcnet,
|
|
len(badMessageBytes),
|
|
io.EOF,
|
|
25,
|
|
},
|
|
|
|
// 15k bytes of data to discard.
|
|
{
|
|
discardBytes,
|
|
pver,
|
|
btcnet,
|
|
len(discardBytes),
|
|
&MessageError{},
|
|
24,
|
|
},
|
|
}
|
|
|
|
t.Logf("Running %d tests", len(tests))
|
|
for i, test := range tests {
|
|
// Decode from wire format.
|
|
r := newFixedReader(test.max, test.buf)
|
|
nr, _, _, err := ReadMessageN(r, test.pver, test.btcnet)
|
|
if reflect.TypeOf(err) != reflect.TypeOf(test.readErr) {
|
|
t.Errorf("ReadMessage #%d wrong error got: %v <%T>, "+
|
|
"want: %T", i, err, err, test.readErr)
|
|
continue
|
|
}
|
|
|
|
// Ensure the number of bytes written match the expected value.
|
|
if nr != test.bytes {
|
|
t.Errorf("ReadMessage #%d unexpected num bytes read - "+
|
|
"got %d, want %d", i, nr, test.bytes)
|
|
}
|
|
|
|
// For errors which are not of type MessageError, check them for
|
|
// equality.
|
|
if _, ok := err.(*MessageError); !ok {
|
|
if err != test.readErr {
|
|
t.Errorf("ReadMessage #%d wrong error got: %v <%T>, "+
|
|
"want: %v <%T>", i, err, err,
|
|
test.readErr, test.readErr)
|
|
continue
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// TestWriteMessageWireErrors performs negative tests against wire encoding from
|
|
// concrete messages to confirm error paths work correctly.
|
|
func TestWriteMessageWireErrors(t *testing.T) {
|
|
pver := ProtocolVersion
|
|
btcnet := MainNet
|
|
wireErr := &MessageError{}
|
|
|
|
// Fake message with a command that is too long.
|
|
badCommandMsg := &fakeMessage{command: "somethingtoolong"}
|
|
|
|
// Fake message with a problem during encoding
|
|
encodeErrMsg := &fakeMessage{forceEncodeErr: true}
|
|
|
|
// Fake message that has payload which exceeds max overall message size.
|
|
exceedOverallPayload := make([]byte, MaxMessagePayload+1)
|
|
exceedOverallPayloadErrMsg := &fakeMessage{payload: exceedOverallPayload}
|
|
|
|
// Fake message that has payload which exceeds max allowed per message.
|
|
exceedPayload := make([]byte, 1)
|
|
exceedPayloadErrMsg := &fakeMessage{payload: exceedPayload, forceLenErr: true}
|
|
|
|
// Fake message that is used to force errors in the header and payload
|
|
// writes.
|
|
bogusPayload := []byte{0x01, 0x02, 0x03, 0x04}
|
|
bogusMsg := &fakeMessage{command: "bogus", payload: bogusPayload}
|
|
|
|
tests := []struct {
|
|
msg Message // Message to encode
|
|
pver uint32 // Protocol version for wire encoding
|
|
btcnet BitcoinNet // Bitcoin network for wire encoding
|
|
max int // Max size of fixed buffer to induce errors
|
|
err error // Expected error
|
|
bytes int // Expected num bytes written
|
|
}{
|
|
// Command too long.
|
|
{badCommandMsg, pver, btcnet, 0, wireErr, 0},
|
|
// Force error in payload encode.
|
|
{encodeErrMsg, pver, btcnet, 0, wireErr, 0},
|
|
// Force error due to exceeding max overall message payload size.
|
|
{exceedOverallPayloadErrMsg, pver, btcnet, 0, wireErr, 0},
|
|
// Force error due to exceeding max payload for message type.
|
|
{exceedPayloadErrMsg, pver, btcnet, 0, wireErr, 0},
|
|
// Force error in header write.
|
|
{bogusMsg, pver, btcnet, 0, io.ErrShortWrite, 0},
|
|
// Force error in payload write.
|
|
{bogusMsg, pver, btcnet, 24, io.ErrShortWrite, 24},
|
|
}
|
|
|
|
t.Logf("Running %d tests", len(tests))
|
|
for i, test := range tests {
|
|
// Encode wire format.
|
|
w := newFixedWriter(test.max)
|
|
nw, err := WriteMessageN(w, test.msg, test.pver, test.btcnet)
|
|
if reflect.TypeOf(err) != reflect.TypeOf(test.err) {
|
|
t.Errorf("WriteMessage #%d wrong error got: %v <%T>, "+
|
|
"want: %T", i, err, err, test.err)
|
|
continue
|
|
}
|
|
|
|
// Ensure the number of bytes written match the expected value.
|
|
if nw != test.bytes {
|
|
t.Errorf("WriteMessage #%d unexpected num bytes "+
|
|
"written - got %d, want %d", i, nw, test.bytes)
|
|
}
|
|
|
|
// For errors which are not of type MessageError, check them for
|
|
// equality.
|
|
if _, ok := err.(*MessageError); !ok {
|
|
if err != test.err {
|
|
t.Errorf("ReadMessage #%d wrong error got: %v <%T>, "+
|
|
"want: %v <%T>", i, err, err,
|
|
test.err, test.err)
|
|
continue
|
|
}
|
|
}
|
|
}
|
|
}
|