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Merge pull request #588 from ethersphere/frontier/SEC-29

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Frontier/sec 29
This commit is contained in:
Jeffrey Wilcke 2015-04-01 13:55:42 +02:00
commit 4a4da9a24e
3 changed files with 225 additions and 17 deletions
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17
core/types/block.go
View File

@ -148,6 +148,23 @@ func NewBlockWithHeader(header *Header) *Block {
return &Block{header: header}
}
func (self *Block) ValidateFields() error {
if self.header == nil {
return fmt.Errorf("header is nil")
}
for i, transaction := range self.transactions {
if transaction == nil {
return fmt.Errorf("transaction %d is nil", i)
}
}
for i, uncle := range self.uncles {
if uncle == nil {
return fmt.Errorf("uncle %d is nil", i)
}
}
return nil
}
func (self *Block) DecodeRLP(s *rlp.Stream) error {
var eb extblock
if err := s.Decode(&eb); err != nil {

11
eth/protocol.go
View File

@ -185,7 +185,10 @@ func (self *ethProtocol) handle() error {
if err := msg.Decode(&txs); err != nil {
return self.protoError(ErrDecode, "msg %v: %v", msg, err)
}
for _, tx := range txs {
for i, tx := range txs {
if tx == nil {
return self.protoError(ErrDecode, "transaction %d is nil", i)
}
jsonlogger.LogJson(&logger.EthTxReceived{
TxHash: tx.Hash().Hex(),
RemoteId: self.peer.ID().String(),
@ -268,6 +271,9 @@ func (self *ethProtocol) handle() error {
return self.protoError(ErrDecode, "msg %v: %v", msg, err)
}
}
if err := block.ValidateFields(); err != nil {
return self.protoError(ErrDecode, "block validation %v: %v", msg, err)
}
self.blockPool.AddBlock(&block, self.id)
}
@ -276,6 +282,9 @@ func (self *ethProtocol) handle() error {
if err := msg.Decode(&request); err != nil {
return self.protoError(ErrDecode, "%v: %v", msg, err)
}
if err := request.Block.ValidateFields(); err != nil {
return self.protoError(ErrDecode, "block validation %v: %v", msg, err)
}
hash := request.Block.Hash()
_, chainHead, _ := self.chainManager.Status()

214
eth/protocol_test.go
View File

@ -63,6 +63,10 @@ func (self *testChainManager) GetBlockHashesFromHash(hash common.Hash, amount ui
func (self *testChainManager) Status() (td *big.Int, currentBlock common.Hash, genesisBlock common.Hash) {
if self.status != nil {
td, currentBlock, genesisBlock = self.status()
} else {
td = common.Big1
currentBlock = common.Hash{1}
genesisBlock = common.Hash{2}
}
return
}
@ -163,14 +167,29 @@ func (self *ethProtocolTester) run() {
self.quit <- err
}
func (self *ethProtocolTester) handshake(t *testing.T, mock bool) {
td, currentBlock, genesis := self.chainManager.Status()
// first outgoing msg should be StatusMsg.
err := p2p.ExpectMsg(self, StatusMsg, &statusMsgData{
ProtocolVersion: ProtocolVersion,
NetworkId: NetworkId,
TD: td,
CurrentBlock: currentBlock,
GenesisBlock: genesis,
})
if err != nil {
t.Fatalf("incorrect outgoing status: %v", err)
}
if mock {
go p2p.Send(self, StatusMsg, &statusMsgData{ProtocolVersion, NetworkId, td, currentBlock, genesis})
}
}
func TestStatusMsgErrors(t *testing.T) {
logInit()
eth := newEth(t)
td := common.Big1
currentBlock := common.Hash{1}
genesis := common.Hash{2}
eth.chainManager.status = func() (*big.Int, common.Hash, common.Hash) { return td, currentBlock, genesis }
go eth.run()
td, currentBlock, genesis := eth.chainManager.Status()
tests := []struct {
code uint64
@ -195,18 +214,7 @@ func TestStatusMsgErrors(t *testing.T) {
},
}
for _, test := range tests {
// first outgoing msg should be StatusMsg.
err := p2p.ExpectMsg(eth, StatusMsg, &statusMsgData{
ProtocolVersion: ProtocolVersion,
NetworkId: NetworkId,
TD: td,
CurrentBlock: currentBlock,
GenesisBlock: genesis,
})
if err != nil {
t.Fatalf("incorrect outgoing status: %v", err)
}
eth.handshake(t, false)
// the send call might hang until reset because
// the protocol might not read the payload.
go p2p.Send(eth, test.code, test.data)
@ -216,3 +224,177 @@ func TestStatusMsgErrors(t *testing.T) {
go eth.run()
}
}
func TestNewBlockMsg(t *testing.T) {
// logInit()
eth := newEth(t)
var disconnected bool
eth.blockPool.removePeer = func(peerId string) {
disconnected = true
}
go eth.run()
eth.handshake(t, true)
err := p2p.ExpectMsg(eth, TxMsg, []interface{}{})
if err != nil {
t.Errorf("transactions expected, got %v", err)
}
var tds = make(chan *big.Int)
eth.blockPool.addPeer = func(td *big.Int, currentBlock common.Hash, peerId string, requestHashes func(common.Hash) error, requestBlocks func([]common.Hash) error, peerError func(*errs.Error)) (best bool, suspended bool) {
tds <- td
return
}
var delay = 1 * time.Second
// eth.reset()
block := types.NewBlock(common.Hash{1}, common.Address{1}, common.Hash{1}, common.Big1, 1, "extra")
go p2p.Send(eth, NewBlockMsg, &newBlockMsgData{Block: block})
timer := time.After(delay)
select {
case td := <-tds:
if td.Cmp(common.Big0) != 0 {
t.Errorf("incorrect td %v, expected %v", td, common.Big0)
}
case <-timer:
t.Errorf("no td recorded after %v", delay)
return
case err := <-eth.quit:
t.Errorf("no error expected, got %v", err)
return
}
go p2p.Send(eth, NewBlockMsg, &newBlockMsgData{block, common.Big2})
timer = time.After(delay)
select {
case td := <-tds:
if td.Cmp(common.Big2) != 0 {
t.Errorf("incorrect td %v, expected %v", td, common.Big2)
}
case <-timer:
t.Errorf("no td recorded after %v", delay)
return
case err := <-eth.quit:
t.Errorf("no error expected, got %v", err)
return
}
go p2p.Send(eth, NewBlockMsg, []interface{}{})
// Block.DecodeRLP: validation failed: header is nil
eth.checkError(ErrDecode, delay)
}
func TestBlockMsg(t *testing.T) {
// logInit()
eth := newEth(t)
blocks := make(chan *types.Block)
eth.blockPool.addBlock = func(block *types.Block, peerId string) (err error) {
blocks <- block
return
}
var disconnected bool
eth.blockPool.removePeer = func(peerId string) {
disconnected = true
}
go eth.run()
eth.handshake(t, true)
err := p2p.ExpectMsg(eth, TxMsg, []interface{}{})
if err != nil {
t.Errorf("transactions expected, got %v", err)
}
var delay = 3 * time.Second
// eth.reset()
newblock := func(i int64) *types.Block {
return types.NewBlock(common.Hash{byte(i)}, common.Address{byte(i)}, common.Hash{byte(i)}, big.NewInt(i), uint64(i), string(i))
}
b := newblock(0)
b.Header().Difficulty = nil // check if nil as *big.Int decodes as 0
go p2p.Send(eth, BlocksMsg, types.Blocks{b, newblock(1), newblock(2)})
timer := time.After(delay)
for i := int64(0); i < 3; i++ {
select {
case block := <-blocks:
if (block.ParentHash() != common.Hash{byte(i)}) {
t.Errorf("incorrect block %v, expected %v", block.ParentHash(), common.Hash{byte(i)})
}
if block.Difficulty().Cmp(big.NewInt(i)) != 0 {
t.Errorf("incorrect block %v, expected %v", block.Difficulty(), big.NewInt(i))
}
case <-timer:
t.Errorf("no td recorded after %v", delay)
return
case err := <-eth.quit:
t.Errorf("no error expected, got %v", err)
return
}
}
go p2p.Send(eth, BlocksMsg, []interface{}{[]interface{}{}})
eth.checkError(ErrDecode, delay)
if !disconnected {
t.Errorf("peer not disconnected after error")
}
// test empty transaction
eth.reset()
go eth.run()
eth.handshake(t, true)
err = p2p.ExpectMsg(eth, TxMsg, []interface{}{})
if err != nil {
t.Errorf("transactions expected, got %v", err)
}
b = newblock(0)
b.AddTransaction(nil)
go p2p.Send(eth, BlocksMsg, types.Blocks{b})
eth.checkError(ErrDecode, delay)
}
func TestTransactionsMsg(t *testing.T) {
logInit()
eth := newEth(t)
txs := make(chan *types.Transaction)
eth.txPool.addTransactions = func(t []*types.Transaction) {
for _, tx := range t {
txs <- tx
}
}
go eth.run()
eth.handshake(t, true)
err := p2p.ExpectMsg(eth, TxMsg, []interface{}{})
if err != nil {
t.Errorf("transactions expected, got %v", err)
}
var delay = 3 * time.Second
tx := &types.Transaction{}
go p2p.Send(eth, TxMsg, []interface{}{tx, tx})
timer := time.After(delay)
for i := int64(0); i < 2; i++ {
select {
case <-txs:
case <-timer:
return
case err := <-eth.quit:
t.Errorf("no error expected, got %v", err)
return
}
}
go p2p.Send(eth, TxMsg, []interface{}{[]interface{}{}})
eth.checkError(ErrDecode, delay)
}