// try to parse the connection parameters and address from the connection
func (p *Peer) parse() error {
if p.addr == nil {
return errors.New("can't parse nil address")
}
you, err := wire.NewNetAddress(p.addr, wire.SFNodeNetwork)
if err != nil {
return err
}
local, ok := p.conn.LocalAddr().(*net.TCPAddr)
if !ok {
return errors.New("could not parse local address from connection")
}
me, err := wire.NewNetAddress(local, wire.SFNodeNetwork)
if err != nil {
return err
}
p.you = you
p.me = me
return nil
}
func TestAddnNa(t *testing.T) {
// create test data struct
var td = []struct {
ip string
port int
dnsType uint32
}{
{"1.2.3.4", 28333, 1},
{"50.123.45.67", 43210, 2},
}
s := &dnsseeder{
port: 28333,
pver: 1234,
maxSize: 1,
}
s.theList = make(map[string]*node)
for _, atest := range td {
// Test NewNetAddress.
tcpAddr := &net.TCPAddr{
IP: net.ParseIP(atest.ip),
Port: atest.port,
}
na, _ := wire.NewNetAddress(tcpAddr, 0)
ndName := net.JoinHostPort(na.IP.String(), strconv.Itoa(int(na.Port)))
result := s.addNa(na)
if result != true {
t.Errorf("failed to create new node: %s", ndName)
}
if s.theList[ndName].dnsType != atest.dnsType {
t.Errorf("node: %s dnsType:%v expected: %v", ndName, s.theList[ndName].dnsType, atest.dnsType)
}
}
tcpAddr := &net.TCPAddr{
IP: net.ParseIP("127.0.0.1"),
Port: 1234,
}
na, _ := wire.NewNetAddress(tcpAddr, 0)
result := s.addNa(na)
if result != false {
t.Errorf("node added but should have failed as seeder full: %s", net.JoinHostPort(na.IP.String(), strconv.Itoa(int(na.Port))))
}
tcpAddr = &net.TCPAddr{
IP: net.ParseIP("1.2.3.4"),
Port: 28333,
}
na, _ = wire.NewNetAddress(tcpAddr, 0)
result = s.addNa(na)
if result != false {
t.Errorf("node added but should have failed as duplicate: %s", net.JoinHostPort(na.IP.String(), strconv.Itoa(int(na.Port))))
}
}
func (p *Peer) pushAddr() {
msg := wire.NewMsgAddr()
na, err := wire.NewNetAddress(p.conn.LocalAddr(), wire.SFNodeNetwork)
if err != nil {
return
}
msg.AddAddress(na)
p.sendQ <- msg
}
// TestNetAddress tests the NetAddress API.
func TestNetAddress(t *testing.T) {
ip := net.ParseIP("127.0.0.1")
port := 8333
// Test NewNetAddress.
tcpAddr := &net.TCPAddr{
IP: ip,
Port: port,
}
na, err := wire.NewNetAddress(tcpAddr, 0)
if err != nil {
t.Errorf("NewNetAddress: %v", err)
}
// Ensure we get the same ip, port, and services back out.
if !na.IP.Equal(ip) {
t.Errorf("NetNetAddress: wrong ip - got %v, want %v", na.IP, ip)
}
if na.Port != uint16(port) {
t.Errorf("NetNetAddress: wrong port - got %v, want %v", na.Port,
port)
}
if na.Services != 0 {
t.Errorf("NetNetAddress: wrong services - got %v, want %v",
na.Services, 0)
}
if na.HasService(wire.SFNodeNetwork) {
t.Errorf("HasService: SFNodeNetwork service is set")
}
// Ensure adding the full service node flag works.
na.AddService(wire.SFNodeNetwork)
if na.Services != wire.SFNodeNetwork {
t.Errorf("AddService: wrong services - got %v, want %v",
na.Services, wire.SFNodeNetwork)
}
if !na.HasService(wire.SFNodeNetwork) {
t.Errorf("HasService: SFNodeNetwork service not set")
}
// Ensure max payload is expected value for latest protocol version.
pver := wire.ProtocolVersion
wantPayload := uint32(30)
maxPayload := wire.TstMaxNetAddressPayload(wire.ProtocolVersion)
if maxPayload != wantPayload {
t.Errorf("maxNetAddressPayload: wrong max payload length for "+
"protocol version %d - got %v, want %v", pver,
maxPayload, wantPayload)
}
// Protocol version before NetAddressTimeVersion when timestamp was
// added. Ensure max payload is expected value for it.
pver = wire.NetAddressTimeVersion - 1
wantPayload = 26
maxPayload = wire.TstMaxNetAddressPayload(pver)
if maxPayload != wantPayload {
t.Errorf("maxNetAddressPayload: wrong max payload length for "+
"protocol version %d - got %v, want %v", pver,
maxPayload, wantPayload)
}
// Check for expected failure on wrong address type.
udpAddr := &net.UDPAddr{}
_, err = wire.NewNetAddress(udpAddr, 0)
if err != wire.ErrInvalidNetAddr {
t.Errorf("NewNetAddress: expected error not received - "+
"got %v, want %v", err, wire.ErrInvalidNetAddr)
}
}
// TestAddr tests the MsgAddr API.
func TestAddr(t *testing.T) {
pver := wire.ProtocolVersion
// Ensure the command is expected value.
wantCmd := "addr"
msg := wire.NewMsgAddr()
if cmd := msg.Command(); cmd != wantCmd {
t.Errorf("NewMsgAddr: wrong command - got %v want %v",
cmd, wantCmd)
}
// Ensure max payload is expected value for latest protocol version.
// Num addresses (varInt) + max allowed addresses.
wantPayload := uint32(30009)
maxPayload := msg.MaxPayloadLength(pver)
if maxPayload != wantPayload {
t.Errorf("MaxPayloadLength: wrong max payload length for "+
"protocol version %d - got %v, want %v", pver,
maxPayload, wantPayload)
}
// Ensure NetAddresses are added properly.
tcpAddr := &net.TCPAddr{IP: net.ParseIP("127.0.0.1"), Port: 8333}
na, err := wire.NewNetAddress(tcpAddr, wire.SFNodeNetwork)
if err != nil {
t.Errorf("NewNetAddress: %v", err)
}
err = msg.AddAddress(na)
if err != nil {
t.Errorf("AddAddress: %v", err)
}
if msg.AddrList[0] != na {
t.Errorf("AddAddress: wrong address added - got %v, want %v",
spew.Sprint(msg.AddrList[0]), spew.Sprint(na))
}
// Ensure the address list is cleared properly.
msg.ClearAddresses()
if len(msg.AddrList) != 0 {
t.Errorf("ClearAddresses: address list is not empty - "+
"got %v [%v], want %v", len(msg.AddrList),
spew.Sprint(msg.AddrList[0]), 0)
}
// Ensure adding more than the max allowed addresses per message returns
// error.
for i := 0; i < wire.MaxAddrPerMsg+1; i++ {
err = msg.AddAddress(na)
}
if err == nil {
t.Errorf("AddAddress: expected error on too many addresses " +
"not received")
}
err = msg.AddAddresses(na)
if err == nil {
t.Errorf("AddAddresses: expected error on too many addresses " +
"not received")
}
// Ensure max payload is expected value for protocol versions before
// timestamp was added to NetAddress.
// Num addresses (varInt) + max allowed addresses.
pver = wire.NetAddressTimeVersion - 1
wantPayload = uint32(26009)
maxPayload = msg.MaxPayloadLength(pver)
if maxPayload != wantPayload {
t.Errorf("MaxPayloadLength: wrong max payload length for "+
"protocol version %d - got %v, want %v", pver,
maxPayload, wantPayload)
}
// Ensure max payload is expected value for protocol versions before
// multiple addresses were allowed.
// Num addresses (varInt) + a single net addresses.
pver = wire.MultipleAddressVersion - 1
wantPayload = uint32(35)
maxPayload = msg.MaxPayloadLength(pver)
if maxPayload != wantPayload {
t.Errorf("MaxPayloadLength: wrong max payload length for "+
"protocol version %d - got %v, want %v", pver,
maxPayload, wantPayload)
}
return
}
// TestMessage tests the Read/WriteMessage and Read/WriteMessageN API.
func TestMessage(t *testing.T) {
pver := wire.ProtocolVersion
// Create the various types of messages to test.
// MsgVersion.
addrYou := &net.TCPAddr{IP: net.ParseIP("192.168.0.1"), Port: 8333}
you, err := wire.NewNetAddress(addrYou, wire.SFNodeNetwork)
if err != nil {
t.Errorf("NewNetAddress: %v", err)
}
you.Timestamp = time.Time{} // Version message has zero value timestamp.
addrMe := &net.TCPAddr{IP: net.ParseIP("127.0.0.1"), Port: 8333}
me, err := wire.NewNetAddress(addrMe, wire.SFNodeNetwork)
if err != nil {
t.Errorf("NewNetAddress: %v", err)
}
me.Timestamp = time.Time{} // Version message has zero value timestamp.
msgVersion := wire.NewMsgVersion(me, you, 123123, 0)
msgVerack := wire.NewMsgVerAck()
msgGetAddr := wire.NewMsgGetAddr()
msgAddr := wire.NewMsgAddr()
msgGetBlocks := wire.NewMsgGetBlocks(&wire.ShaHash{})
msgBlock := &blockOne
msgInv := wire.NewMsgInv()
msgGetData := wire.NewMsgGetData()
msgNotFound := wire.NewMsgNotFound()
msgTx := wire.NewMsgTx()
msgPing := wire.NewMsgPing(123123)
msgPong := wire.NewMsgPong(123123)
msgGetHeaders := wire.NewMsgGetHeaders()
msgHeaders := wire.NewMsgHeaders()
msgAlert := wire.NewMsgAlert([]byte("payload"), []byte("signature"))
msgMemPool := wire.NewMsgMemPool()
msgFilterAdd := wire.NewMsgFilterAdd([]byte{0x01})
msgFilterClear := wire.NewMsgFilterClear()
msgFilterLoad := wire.NewMsgFilterLoad([]byte{0x01}, 10, 0, wire.BloomUpdateNone)
bh := wire.NewBlockHeader(&wire.ShaHash{}, &wire.ShaHash{}, 0, 0)
msgMerkleBlock := wire.NewMsgMerkleBlock(bh)
msgReject := wire.NewMsgReject("block", wire.RejectDuplicate, "duplicate block")
tests := []struct {
in wire.Message // Value to encode
out wire.Message // Expected decoded value
pver uint32 // Protocol version for wire encoding
btcnet wire.BitcoinNet // Network to use for wire encoding
bytes int // Expected num bytes read/written
}{
{msgVersion, msgVersion, pver, wire.MainNet, 125},
{msgVerack, msgVerack, pver, wire.MainNet, 24},
{msgGetAddr, msgGetAddr, pver, wire.MainNet, 24},
{msgAddr, msgAddr, pver, wire.MainNet, 25},
{msgGetBlocks, msgGetBlocks, pver, wire.MainNet, 61},
{msgBlock, msgBlock, pver, wire.MainNet, 239},
{msgInv, msgInv, pver, wire.MainNet, 25},
{msgGetData, msgGetData, pver, wire.MainNet, 25},
{msgNotFound, msgNotFound, pver, wire.MainNet, 25},
{msgTx, msgTx, pver, wire.MainNet, 34},
{msgPing, msgPing, pver, wire.MainNet, 32},
{msgPong, msgPong, pver, wire.MainNet, 32},
{msgGetHeaders, msgGetHeaders, pver, wire.MainNet, 61},
{msgHeaders, msgHeaders, pver, wire.MainNet, 25},
{msgAlert, msgAlert, pver, wire.MainNet, 42},
{msgMemPool, msgMemPool, pver, wire.MainNet, 24},
{msgFilterAdd, msgFilterAdd, pver, wire.MainNet, 26},
{msgFilterClear, msgFilterClear, pver, wire.MainNet, 24},
{msgFilterLoad, msgFilterLoad, pver, wire.MainNet, 35},
{msgMerkleBlock, msgMerkleBlock, pver, wire.MainNet, 110},
{msgReject, msgReject, pver, wire.MainNet, 79},
}
t.Logf("Running %d tests", len(tests))
for i, test := range tests {
// Encode to wire format.
var buf bytes.Buffer
nw, err := wire.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 := wire.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 := wire.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 := wire.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
}
}
}
// TestVersion tests the MsgVersion API.
func TestVersion(t *testing.T) {
pver := wire.ProtocolVersion
// Create version message data.
lastBlock := int32(234234)
tcpAddrMe := &net.TCPAddr{IP: net.ParseIP("127.0.0.1"), Port: 8333}
me, err := wire.NewNetAddress(tcpAddrMe, wire.SFNodeNetwork)
if err != nil {
t.Errorf("NewNetAddress: %v", err)
}
tcpAddrYou := &net.TCPAddr{IP: net.ParseIP("192.168.0.1"), Port: 8333}
you, err := wire.NewNetAddress(tcpAddrYou, wire.SFNodeNetwork)
if err != nil {
t.Errorf("NewNetAddress: %v", err)
}
nonce, err := wire.RandomUint64()
if err != nil {
t.Errorf("RandomUint64: error generating nonce: %v", err)
}
// Ensure we get the correct data back out.
msg := wire.NewMsgVersion(me, you, nonce, lastBlock)
if msg.ProtocolVersion != int32(pver) {
t.Errorf("NewMsgVersion: wrong protocol version - got %v, want %v",
msg.ProtocolVersion, pver)
}
if !reflect.DeepEqual(&msg.AddrMe, me) {
t.Errorf("NewMsgVersion: wrong me address - got %v, want %v",
spew.Sdump(&msg.AddrMe), spew.Sdump(me))
}
if !reflect.DeepEqual(&msg.AddrYou, you) {
t.Errorf("NewMsgVersion: wrong you address - got %v, want %v",
spew.Sdump(&msg.AddrYou), spew.Sdump(you))
}
if msg.Nonce != nonce {
t.Errorf("NewMsgVersion: wrong nonce - got %v, want %v",
msg.Nonce, nonce)
}
if msg.UserAgent != wire.DefaultUserAgent {
t.Errorf("NewMsgVersion: wrong user agent - got %v, want %v",
msg.UserAgent, wire.DefaultUserAgent)
}
if msg.LastBlock != lastBlock {
t.Errorf("NewMsgVersion: wrong last block - got %v, want %v",
msg.LastBlock, lastBlock)
}
if msg.DisableRelayTx != false {
t.Errorf("NewMsgVersion: disable relay tx is not false by "+
"default - got %v, want %v", msg.DisableRelayTx, false)
}
msg.AddUserAgent("myclient", "1.2.3", "optional", "comments")
customUserAgent := wire.DefaultUserAgent + "myclient:1.2.3(optional; comments)/"
if msg.UserAgent != customUserAgent {
t.Errorf("AddUserAgent: wrong user agent - got %s, want %s",
msg.UserAgent, customUserAgent)
}
msg.AddUserAgent("mygui", "3.4.5")
customUserAgent += "mygui:3.4.5/"
if msg.UserAgent != customUserAgent {
t.Errorf("AddUserAgent: wrong user agent - got %s, want %s",
msg.UserAgent, customUserAgent)
}
// accounting for ":", "/"
err = msg.AddUserAgent(strings.Repeat("t",
wire.MaxUserAgentLen-len(customUserAgent)-2+1), "")
if _, ok := err.(*wire.MessageError); !ok {
t.Errorf("AddUserAgent: expected error not received "+
"- got %v, want %T", err, wire.MessageError{})
}
// Version message should not have any services set by default.
if msg.Services != 0 {
t.Errorf("NewMsgVersion: wrong default services - got %v, want %v",
msg.Services, 0)
}
if msg.HasService(wire.SFNodeNetwork) {
t.Errorf("HasService: SFNodeNetwork service is set")
}
// Ensure the command is expected value.
wantCmd := "version"
if cmd := msg.Command(); cmd != wantCmd {
t.Errorf("NewMsgVersion: wrong command - got %v want %v",
cmd, wantCmd)
}
// Ensure max payload is expected value.
// Protocol version 4 bytes + services 8 bytes + timestamp 8 bytes +
// remote and local net addresses + nonce 8 bytes + length of user agent
// (varInt) + max allowed user agent length + last block 4 bytes +
// relay transactions flag 1 byte.
wantPayload := uint32(2102)
maxPayload := msg.MaxPayloadLength(pver)
if maxPayload != wantPayload {
t.Errorf("MaxPayloadLength: wrong max payload length for "+
"protocol version %d - got %v, want %v", pver,
maxPayload, wantPayload)
}
// Ensure adding the full service node flag works.
msg.AddService(wire.SFNodeNetwork)
if msg.Services != wire.SFNodeNetwork {
t.Errorf("AddService: wrong services - got %v, want %v",
msg.Services, wire.SFNodeNetwork)
}
if !msg.HasService(wire.SFNodeNetwork) {
t.Errorf("HasService: SFNodeNetwork service not set")
}
// Use a fake connection.
conn := &fakeConn{localAddr: tcpAddrMe, remoteAddr: tcpAddrYou}
msg, err = wire.NewMsgVersionFromConn(conn, nonce, lastBlock)
if err != nil {
t.Errorf("NewMsgVersionFromConn: %v", err)
}
// Ensure we get the correct connection data back out.
if !msg.AddrMe.IP.Equal(tcpAddrMe.IP) {
t.Errorf("NewMsgVersionFromConn: wrong me ip - got %v, want %v",
msg.AddrMe.IP, tcpAddrMe.IP)
}
if !msg.AddrYou.IP.Equal(tcpAddrYou.IP) {
t.Errorf("NewMsgVersionFromConn: wrong you ip - got %v, want %v",
msg.AddrYou.IP, tcpAddrYou.IP)
}
// Use a fake connection with local UDP addresses to force a failure.
conn = &fakeConn{
localAddr: &net.UDPAddr{IP: net.ParseIP("127.0.0.1"), Port: 8333},
remoteAddr: tcpAddrYou,
}
msg, err = wire.NewMsgVersionFromConn(conn, nonce, lastBlock)
if err != wire.ErrInvalidNetAddr {
t.Errorf("NewMsgVersionFromConn: expected error not received "+
"- got %v, want %v", err, wire.ErrInvalidNetAddr)
}
// Use a fake connection with remote UDP addresses to force a failure.
conn = &fakeConn{
localAddr: tcpAddrMe,
remoteAddr: &net.UDPAddr{IP: net.ParseIP("192.168.0.1"), Port: 8333},
}
msg, err = wire.NewMsgVersionFromConn(conn, nonce, lastBlock)
if err != wire.ErrInvalidNetAddr {
t.Errorf("NewMsgVersionFromConn: expected error not received "+
"- got %v, want %v", err, wire.ErrInvalidNetAddr)
}
return
}