aboutsummaryrefslogtreecommitdiffstats
path: root/eth
diff options
context:
space:
mode:
Diffstat (limited to 'eth')
-rw-r--r--eth/backend.go13
-rw-r--r--eth/handler.go224
-rw-r--r--eth/peer.go137
-rw-r--r--eth/protocol.go383
4 files changed, 369 insertions, 388 deletions
diff --git a/eth/backend.go b/eth/backend.go
index 3d5c4ba09..d34a2d26b 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -10,7 +10,6 @@ import (
"github.com/ethereum/ethash"
"github.com/ethereum/go-ethereum/accounts"
- "github.com/ethereum/go-ethereum/blockpool"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
@@ -131,7 +130,6 @@ type Ethereum struct {
blockProcessor *core.BlockProcessor
txPool *core.TxPool
chainManager *core.ChainManager
- blockPool *blockpool.BlockPool
accountManager *accounts.Manager
whisper *whisper.Whisper
pow *ethash.Ethash
@@ -219,17 +217,12 @@ func New(config *Config) (*Ethereum, error) {
eth.shhVersionId = int(eth.whisper.Version())
eth.miner = miner.New(eth, eth.pow, config.MinerThreads)
- hasBlock := eth.chainManager.HasBlock
- insertChain := eth.chainManager.InsertChain
- td := eth.chainManager.Td()
- eth.blockPool = blockpool.New(hasBlock, insertChain, eth.pow.Verify, eth.EventMux(), td)
-
netprv, err := config.nodeKey()
if err != nil {
return nil, err
}
- ethProto := EthProtocol(config.ProtocolVersion, config.NetworkId, eth.txPool, eth.chainManager, eth.blockPool, eth.downloader)
+ ethProto := EthProtocol(config.ProtocolVersion, config.NetworkId, eth.txPool, eth.chainManager, eth.downloader)
protocols := []p2p.Protocol{ethProto}
if config.Shh {
protocols = append(protocols, eth.whisper.Protocol())
@@ -352,7 +345,6 @@ func (s *Ethereum) AccountManager() *accounts.Manager { return s.accountManag
func (s *Ethereum) ChainManager() *core.ChainManager { return s.chainManager }
func (s *Ethereum) BlockProcessor() *core.BlockProcessor { return s.blockProcessor }
func (s *Ethereum) TxPool() *core.TxPool { return s.txPool }
-func (s *Ethereum) BlockPool() *blockpool.BlockPool { return s.blockPool }
func (s *Ethereum) Whisper() *whisper.Whisper { return s.whisper }
func (s *Ethereum) EventMux() *event.TypeMux { return s.eventMux }
func (s *Ethereum) BlockDb() common.Database { return s.blockDb }
@@ -384,7 +376,6 @@ func (s *Ethereum) Start() error {
// Start services
s.txPool.Start()
- s.blockPool.Start()
if s.whisper != nil {
s.whisper.Start()
@@ -410,7 +401,6 @@ func (s *Ethereum) StartForTest() {
// Start services
s.txPool.Start()
- s.blockPool.Start()
}
func (self *Ethereum) SuggestPeer(nodeURL string) error {
@@ -433,7 +423,6 @@ func (s *Ethereum) Stop() {
s.txPool.Stop()
s.eventMux.Stop()
- s.blockPool.Stop()
if s.whisper != nil {
s.whisper.Stop()
}
diff --git a/eth/handler.go b/eth/handler.go
new file mode 100644
index 000000000..b3890d365
--- /dev/null
+++ b/eth/handler.go
@@ -0,0 +1,224 @@
+package eth
+
+import (
+ "fmt"
+ "sync"
+
+ "github.com/ethereum/go-ethereum/common"
+ "github.com/ethereum/go-ethereum/core/types"
+ "github.com/ethereum/go-ethereum/eth/downloader"
+ "github.com/ethereum/go-ethereum/logger"
+ "github.com/ethereum/go-ethereum/logger/glog"
+ "github.com/ethereum/go-ethereum/p2p"
+ "github.com/ethereum/go-ethereum/rlp"
+)
+
+func errResp(code errCode, format string, v ...interface{}) error {
+ return fmt.Errorf("%v - %v", code, fmt.Sprintf(format, v...))
+}
+
+// main entrypoint, wrappers starting a server running the eth protocol
+// use this constructor to attach the protocol ("class") to server caps
+// the Dev p2p layer then runs the protocol instance on each peer
+func EthProtocol(protocolVersion, networkId int, txPool txPool, chainManager chainManager, downloader *downloader.Downloader) p2p.Protocol {
+ protocol := newProtocolManager(txPool, chainManager, downloader)
+
+ return p2p.Protocol{
+ Name: "eth",
+ Version: uint(protocolVersion),
+ Length: ProtocolLength,
+ Run: func(p *p2p.Peer, rw p2p.MsgReadWriter) error {
+ //return runEthProtocol(protocolVersion, networkId, txPool, chainManager, downloader, p, rw)
+ peer := protocol.newPeer(protocolVersion, networkId, p, rw)
+ err := protocol.handle(peer)
+ glog.V(logger.Detail).Infof("[%s]: %v\n", peer.id, err)
+
+ return err
+ },
+ }
+}
+
+type hashFetcherFn func(common.Hash) error
+type blockFetcherFn func([]common.Hash) error
+
+// extProt is an interface which is passed around so we can expose GetHashes and GetBlock without exposing it to the rest of the protocol
+// extProt is passed around to peers which require to GetHashes and GetBlocks
+type extProt struct {
+ getHashes hashFetcherFn
+ getBlocks blockFetcherFn
+}
+
+func (ep extProt) GetHashes(hash common.Hash) error { return ep.getHashes(hash) }
+func (ep extProt) GetBlock(hashes []common.Hash) error { return ep.getBlocks(hashes) }
+
+type EthProtocolManager struct {
+ protVer, netId int
+ txpool txPool
+ chainman chainManager
+ downloader *downloader.Downloader
+
+ pmu sync.Mutex
+ peers map[string]*peer
+}
+
+func newProtocolManager(txpool txPool, chainman chainManager, downloader *downloader.Downloader) *EthProtocolManager {
+ return &EthProtocolManager{
+ txpool: txpool,
+ chainman: chainman,
+ downloader: downloader,
+ peers: make(map[string]*peer),
+ }
+}
+
+func (pm *EthProtocolManager) newPeer(pv, nv int, p *p2p.Peer, rw p2p.MsgReadWriter) *peer {
+ pm.pmu.Lock()
+ defer pm.pmu.Unlock()
+
+ td, current, genesis := pm.chainman.Status()
+
+ peer := newPeer(pv, nv, genesis, current, td, p, rw)
+ pm.peers[peer.id] = peer
+
+ return peer
+}
+
+func (pm *EthProtocolManager) handle(p *peer) error {
+ if err := p.handleStatus(); err != nil {
+ return err
+ }
+
+ pm.downloader.RegisterPeer(p.id, p.td, p.currentHash, p.requestHashes, p.requestBlocks)
+ defer pm.downloader.UnregisterPeer(p.id)
+
+ // propagate existing transactions. new transactions appearing
+ // after this will be sent via broadcasts.
+ if err := p.sendTransactions(pm.txpool.GetTransactions()); err != nil {
+ return err
+ }
+
+ // main loop. handle incoming messages.
+ for {
+ if err := pm.handleMsg(p); err != nil {
+ return err
+ }
+ }
+
+ return nil
+}
+
+func (self *EthProtocolManager) handleMsg(p *peer) error {
+ msg, err := p.rw.ReadMsg()
+ if err != nil {
+ return err
+ }
+ if msg.Size > ProtocolMaxMsgSize {
+ return errResp(ErrMsgTooLarge, "%v > %v", msg.Size, ProtocolMaxMsgSize)
+ }
+ // make sure that the payload has been fully consumed
+ defer msg.Discard()
+
+ switch msg.Code {
+ case GetTxMsg: // ignore
+ case StatusMsg:
+ return errResp(ErrExtraStatusMsg, "uncontrolled status message")
+
+ case TxMsg:
+ // TODO: rework using lazy RLP stream
+ var txs []*types.Transaction
+ if err := msg.Decode(&txs); err != nil {
+ return errResp(ErrDecode, "msg %v: %v", msg, err)
+ }
+ for i, tx := range txs {
+ if tx == nil {
+ return errResp(ErrDecode, "transaction %d is nil", i)
+ }
+ jsonlogger.LogJson(&logger.EthTxReceived{
+ TxHash: tx.Hash().Hex(),
+ RemoteId: p.ID().String(),
+ })
+ }
+ self.txpool.AddTransactions(txs)
+
+ case GetBlockHashesMsg:
+ var request getBlockHashesMsgData
+ if err := msg.Decode(&request); err != nil {
+ return errResp(ErrDecode, "->msg %v: %v", msg, err)
+ }
+
+ if request.Amount > maxHashes {
+ request.Amount = maxHashes
+ }
+ hashes := self.chainman.GetBlockHashesFromHash(request.Hash, request.Amount)
+ return p.sendBlockHashes(hashes)
+ case BlockHashesMsg:
+ msgStream := rlp.NewStream(msg.Payload)
+
+ var hashes []common.Hash
+ if err := msgStream.Decode(&hashes); err != nil {
+ break
+ }
+ self.downloader.HashCh <- hashes
+
+ case GetBlocksMsg:
+ msgStream := rlp.NewStream(msg.Payload)
+ if _, err := msgStream.List(); err != nil {
+ return err
+ }
+
+ var blocks []*types.Block
+ var i int
+ for {
+ i++
+ var hash common.Hash
+ err := msgStream.Decode(&hash)
+ if err == rlp.EOL {
+ break
+ } else if err != nil {
+ return errResp(ErrDecode, "msg %v: %v", msg, err)
+ }
+
+ block := self.chainman.GetBlock(hash)
+ if block != nil {
+ blocks = append(blocks, block)
+ }
+ if i == maxBlocks {
+ break
+ }
+ }
+ return p.sendBlocks(blocks)
+ case BlocksMsg:
+ msgStream := rlp.NewStream(msg.Payload)
+
+ var blocks []*types.Block
+ if err := msgStream.Decode(&blocks); err != nil {
+ glog.V(logger.Detail).Infoln("Decode error", err)
+ fmt.Println("decode error", err)
+ blocks = nil
+ }
+ self.downloader.DeliverChunk(p.id, blocks)
+
+ case NewBlockMsg:
+ var request newBlockMsgData
+ if err := msg.Decode(&request); err != nil {
+ return errResp(ErrDecode, "%v: %v", msg, err)
+ }
+ if err := request.Block.ValidateFields(); err != nil {
+ return errResp(ErrDecode, "block validation %v: %v", msg, err)
+ }
+ hash := request.Block.Hash()
+ _, chainHead, _ := self.chainman.Status()
+
+ jsonlogger.LogJson(&logger.EthChainReceivedNewBlock{
+ BlockHash: hash.Hex(),
+ BlockNumber: request.Block.Number(), // this surely must be zero
+ ChainHeadHash: chainHead.Hex(),
+ BlockPrevHash: request.Block.ParentHash().Hex(),
+ RemoteId: p.ID().String(),
+ })
+ self.downloader.AddBlock(p.id, request.Block, request.TD)
+
+ default:
+ return errResp(ErrInvalidMsgCode, "%v", msg.Code)
+ }
+ return nil
+}
diff --git a/eth/peer.go b/eth/peer.go
new file mode 100644
index 000000000..db7fea7a7
--- /dev/null
+++ b/eth/peer.go
@@ -0,0 +1,137 @@
+package eth
+
+import (
+ "fmt"
+ "math/big"
+
+ "github.com/ethereum/go-ethereum/common"
+ "github.com/ethereum/go-ethereum/core/types"
+ "github.com/ethereum/go-ethereum/p2p"
+ "gopkg.in/fatih/set.v0"
+)
+
+type statusMsgData struct {
+ ProtocolVersion uint32
+ NetworkId uint32
+ TD *big.Int
+ CurrentBlock common.Hash
+ GenesisBlock common.Hash
+}
+
+type getBlockHashesMsgData struct {
+ Hash common.Hash
+ Amount uint64
+}
+
+type peer struct {
+ *p2p.Peer
+
+ rw p2p.MsgReadWriter
+
+ protv, netid int
+
+ currentHash common.Hash
+ id string
+ td *big.Int
+
+ genesis, ourHash common.Hash
+ ourTd *big.Int
+
+ txHashes *set.Set
+ blockHashes *set.Set
+}
+
+func newPeer(protv, netid int, genesis, currentHash common.Hash, td *big.Int, p *p2p.Peer, rw p2p.MsgReadWriter) *peer {
+ id := p.ID()
+
+ return &peer{
+ Peer: p,
+ rw: rw,
+ genesis: genesis,
+ ourHash: currentHash,
+ ourTd: td,
+ protv: protv,
+ netid: netid,
+ id: fmt.Sprintf("%x", id[:8]),
+ txHashes: set.New(),
+ blockHashes: set.New(),
+ }
+}
+
+// sendTransactions sends transactions to the peer and includes the hashes
+// in it's tx hash set for future reference. The tx hash will allow the
+// manager to check whether the peer has already received this particular
+// transaction
+func (p *peer) sendTransactions(txs types.Transactions) error {
+ for _, tx := range txs {
+ p.txHashes.Add(tx.Hash())
+ }
+
+ return p2p.Send(p.rw, TxMsg, txs)
+}
+
+func (p *peer) sendBlockHashes(hashes []common.Hash) error {
+ return p2p.Send(p.rw, BlockHashesMsg, hashes)
+}
+
+func (p *peer) sendBlocks(blocks []*types.Block) error {
+ return p2p.Send(p.rw, BlocksMsg, blocks)
+}
+
+func (p *peer) requestHashes(from common.Hash) error {
+ p.Debugf("fetching hashes (%d) %x...\n", maxHashes, from[0:4])
+ return p2p.Send(p.rw, GetBlockHashesMsg, getBlockHashesMsgData{from, maxHashes})
+}
+
+func (p *peer) requestBlocks(hashes []common.Hash) error {
+ p.Debugf("fetching %v blocks", len(hashes))
+ return p2p.Send(p.rw, GetBlocksMsg, hashes)
+}
+
+func (p *peer) handleStatus() error {
+ errc := make(chan error, 1)
+ go func() {
+ errc <- p2p.Send(p.rw, StatusMsg, &statusMsgData{
+ ProtocolVersion: uint32(p.protv),
+ NetworkId: uint32(p.netid),
+ TD: p.ourTd,
+ CurrentBlock: p.ourHash,
+ GenesisBlock: p.genesis,
+ })
+ }()
+
+ // read and handle remote status
+ msg, err := p.rw.ReadMsg()
+ if err != nil {
+ return err
+ }
+ if msg.Code != StatusMsg {
+ return errResp(ErrNoStatusMsg, "first msg has code %x (!= %x)", msg.Code, StatusMsg)
+ }
+ if msg.Size > ProtocolMaxMsgSize {
+ return errResp(ErrMsgTooLarge, "%v > %v", msg.Size, ProtocolMaxMsgSize)
+ }
+
+ var status statusMsgData
+ if err := msg.Decode(&status); err != nil {
+ return errResp(ErrDecode, "msg %v: %v", msg, err)
+ }
+
+ if status.GenesisBlock != p.genesis {
+ return errResp(ErrGenesisBlockMismatch, "%x (!= %x)", status.GenesisBlock, p.genesis)
+ }
+
+ if int(status.NetworkId) != p.netid {
+ return errResp(ErrNetworkIdMismatch, "%d (!= %d)", status.NetworkId, p.netid)
+ }
+
+ if int(status.ProtocolVersion) != p.protv {
+ return errResp(ErrProtocolVersionMismatch, "%d (!= %d)", status.ProtocolVersion, p.protv)
+ }
+ // Set the total difficulty of the peer
+ p.td = status.TD
+ // set the best hash of the peer
+ p.currentHash = status.CurrentBlock
+
+ return <-errc
+}
diff --git a/eth/protocol.go b/eth/protocol.go
index 66f3cbac8..48f37b59c 100644
--- a/eth/protocol.go
+++ b/eth/protocol.go
@@ -1,17 +1,10 @@
package eth
import (
- "fmt"
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
- "github.com/ethereum/go-ethereum/errs"
- "github.com/ethereum/go-ethereum/eth/downloader"
- "github.com/ethereum/go-ethereum/logger"
- "github.com/ethereum/go-ethereum/logger/glog"
- "github.com/ethereum/go-ethereum/p2p"
- "github.com/ethereum/go-ethereum/rlp"
)
const (
@@ -35,6 +28,8 @@ const (
NewBlockMsg
)
+type errCode int
+
const (
ErrMsgTooLarge = iota
ErrDecode
@@ -47,6 +42,11 @@ const (
ErrSuspendedPeer
)
+func (e errCode) String() string {
+ return errorToString[int(e)]
+}
+
+// XXX change once legacy code is out
var errorToString = map[int]string{
ErrMsgTooLarge: "Message too long",
ErrDecode: "Invalid message",
@@ -59,21 +59,6 @@ var errorToString = map[int]string{
ErrSuspendedPeer: "Suspended peer",
}
-// ethProtocol represents the ethereum wire protocol
-// instance is running on each peer
-type ethProtocol struct {
- txPool txPool
- chainManager chainManager
- blockPool blockPool
- downloader *downloader.Downloader
- peer *p2p.Peer
- id string
- rw p2p.MsgReadWriter
- errors *errs.Errors
- protocolVersion int
- networkId int
-}
-
// backend is the interface the ethereum protocol backend should implement
// used as an argument to EthProtocol
type txPool interface {
@@ -87,362 +72,8 @@ type chainManager interface {
Status() (td *big.Int, currentBlock common.Hash, genesisBlock common.Hash)
}
-type blockPool interface {
- AddBlockHashes(next func() (common.Hash, bool), peerId string)
- AddBlock(block *types.Block, peerId string)
- AddPeer(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)
- RemovePeer(peerId string)
-}
-
// message structs used for RLP serialization
type newBlockMsgData struct {
Block *types.Block
TD *big.Int
}
-
-type getBlockHashesMsgData struct {
- Hash common.Hash
- Amount uint64
-}
-
-type statusMsgData struct {
- ProtocolVersion uint32
- NetworkId uint32
- TD *big.Int
- CurrentBlock common.Hash
- GenesisBlock common.Hash
-}
-
-// main entrypoint, wrappers starting a server running the eth protocol
-// use this constructor to attach the protocol ("class") to server caps
-// the Dev p2p layer then runs the protocol instance on each peer
-func EthProtocol(protocolVersion, networkId int, txPool txPool, chainManager chainManager, blockPool blockPool, downloader *downloader.Downloader) p2p.Protocol {
- return p2p.Protocol{
- Name: "eth",
- Version: uint(protocolVersion),
- Length: ProtocolLength,
- Run: func(peer *p2p.Peer, rw p2p.MsgReadWriter) error {
- return runEthProtocol(protocolVersion, networkId, txPool, chainManager, blockPool, downloader, peer, rw)
- },
- }
-}
-
-// the main loop that handles incoming messages
-// note RemovePeer in the post-disconnect hook
-func runEthProtocol(protocolVersion, networkId int, txPool txPool, chainManager chainManager, blockPool blockPool, downloader *downloader.Downloader, peer *p2p.Peer, rw p2p.MsgReadWriter) (err error) {
- id := peer.ID()
- self := &ethProtocol{
- txPool: txPool,
- chainManager: chainManager,
- blockPool: blockPool,
- downloader: downloader,
- rw: rw,
- peer: peer,
- protocolVersion: protocolVersion,
- networkId: networkId,
- errors: &errs.Errors{
- Package: "ETH",
- Errors: errorToString,
- },
- id: fmt.Sprintf("%x", id[:8]),
- }
-
- // handshake.
- if err := self.handleStatus(); err != nil {
- return err
- }
- defer self.blockPool.RemovePeer(self.id)
-
- // propagate existing transactions. new transactions appearing
- // after this will be sent via broadcasts.
- if err := p2p.Send(rw, TxMsg, txPool.GetTransactions()); err != nil {
- return err
- }
-
- // main loop. handle incoming messages.
- for {
- if err := self.handle(); err != nil {
- return err
- }
- }
-}
-
-func (self *ethProtocol) handle() error {
- msg, err := self.rw.ReadMsg()
- if err != nil {
- return err
- }
- if msg.Size > ProtocolMaxMsgSize {
- return self.protoError(ErrMsgTooLarge, "%v > %v", msg.Size, ProtocolMaxMsgSize)
- }
- // make sure that the payload has been fully consumed
- defer msg.Discard()
-
- switch msg.Code {
- case GetTxMsg: // ignore
- case StatusMsg:
- return self.protoError(ErrExtraStatusMsg, "")
-
- case TxMsg:
- // TODO: rework using lazy RLP stream
- var txs []*types.Transaction
- if err := msg.Decode(&txs); err != nil {
- return self.protoError(ErrDecode, "msg %v: %v", msg, err)
- }
- 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(),
- })
- }
- self.txPool.AddTransactions(txs)
-
- case GetBlockHashesMsg:
- var request getBlockHashesMsgData
- if err := msg.Decode(&request); err != nil {
- return self.protoError(ErrDecode, "->msg %v: %v", msg, err)
- }
-
- if request.Amount > maxHashes {
- request.Amount = maxHashes
- }
- hashes := self.chainManager.GetBlockHashesFromHash(request.Hash, request.Amount)
- return p2p.Send(self.rw, BlockHashesMsg, hashes)
-
- case BlockHashesMsg:
- msgStream := rlp.NewStream(msg.Payload)
-
- var hashes []common.Hash
- if err := msgStream.Decode(&hashes); err != nil {
- break
- }
- self.downloader.HashCh <- hashes
-
- /*
- if _, err := msgStream.List(); err != nil {
- return err
- }
-
- var i int
- iter := func() (hash common.Hash, err error) {
- err = msgStream.Decode(&hash)
- if err == rlp.EOL {
- return common.Hash{}, err
- } else if err != nil {
- return common.Hash{}, fmt.Errorf("Fetching hashes err (%d): %v", i, err)
- }
-
- i++
- return hash, nil
- }
- self.downloader.HashCh <- iter
- //self.blockPool.AddBlockHashes(iter, self.id)
- */
-
- case GetBlocksMsg:
- msgStream := rlp.NewStream(msg.Payload)
- if _, err := msgStream.List(); err != nil {
- return err
- }
-
- var blocks []*types.Block
- var i int
- for {
- i++
- var hash common.Hash
- err := msgStream.Decode(&hash)
- if err == rlp.EOL {
- break
- } else if err != nil {
- return self.protoError(ErrDecode, "msg %v: %v", msg, err)
- }
-
- block := self.chainManager.GetBlock(hash)
- if block != nil {
- blocks = append(blocks, block)
- }
- if i == maxBlocks {
- break
- }
- }
- return p2p.Send(self.rw, BlocksMsg, blocks)
-
- case BlocksMsg:
- msgStream := rlp.NewStream(msg.Payload)
-
- var blocks []*types.Block
- if err := msgStream.Decode(&blocks); err != nil {
- glog.V(logger.Detail).Infoln("Decode error", err)
- fmt.Println("decode error", err)
- blocks = nil
- }
- self.downloader.DeliverChunk(self.id, blocks)
- /*
- msgStream := rlp.NewStream(msg.Payload)
- if _, err := msgStream.List(); err != nil {
- return err
- }
- for {
- var block types.Block
- if err := msgStream.Decode(&block); err != nil {
- if err == rlp.EOL {
- break
- } else {
- 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)
- }
- */
-
- case NewBlockMsg:
- var request newBlockMsgData
- 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()
-
- jsonlogger.LogJson(&logger.EthChainReceivedNewBlock{
- BlockHash: hash.Hex(),
- BlockNumber: request.Block.Number(), // this surely must be zero
- ChainHeadHash: chainHead.Hex(),
- BlockPrevHash: request.Block.ParentHash().Hex(),
- RemoteId: self.peer.ID().String(),
- })
-
- self.downloader.AddBlock(self.id, request.Block, request.TD)
- // to simplify backend interface adding a new block
- // uses AddPeer followed by AddBlock only if peer is the best peer
- // (or selected as new best peer)
- if _, suspended := self.blockPool.AddPeer(request.TD, hash, self.id, self.requestBlockHashes, self.requestBlocks, self.protoErrorDisconnect); !suspended {
- self.blockPool.AddBlock(request.Block, self.id)
- }
-
- default:
- return self.protoError(ErrInvalidMsgCode, "%v", msg.Code)
- }
- return nil
-}
-
-func (self *ethProtocol) handleStatus() error {
- if err := self.sendStatus(); err != nil {
- return err
- }
-
- // read and handle remote status
- msg, err := self.rw.ReadMsg()
- if err != nil {
- return err
- }
- if msg.Code != StatusMsg {
- return self.protoError(ErrNoStatusMsg, "first msg has code %x (!= %x)", msg.Code, StatusMsg)
- }
- if msg.Size > ProtocolMaxMsgSize {
- return self.protoError(ErrMsgTooLarge, "%v > %v", msg.Size, ProtocolMaxMsgSize)
- }
-
- var status statusMsgData
- if err := msg.Decode(&status); err != nil {
- return self.protoError(ErrDecode, "msg %v: %v", msg, err)
- }
-
- _, _, genesisBlock := self.chainManager.Status()
-
- if status.GenesisBlock != genesisBlock {
- return self.protoError(ErrGenesisBlockMismatch, "%x (!= %x)", status.GenesisBlock, genesisBlock)
- }
-
- if int(status.NetworkId) != self.networkId {
- return self.protoError(ErrNetworkIdMismatch, "%d (!= %d)", status.NetworkId, self.networkId)
- }
-
- if int(status.ProtocolVersion) != self.protocolVersion {
- return self.protoError(ErrProtocolVersionMismatch, "%d (!= %d)", status.ProtocolVersion, self.protocolVersion)
- }
-
- err = self.downloader.RegisterPeer(self.id, status.TD, status.CurrentBlock, self.requestBlockHashes, self.requestBlocks)
- if err != nil {
- return self.protoError(ErrSuspendedPeer, "something")
- }
- /*
- _, suspended := self.blockPool.AddPeer(status.TD, status.CurrentBlock, self.id, self.requestBlockHashes, self.requestBlocks, self.protoErrorDisconnect)
- if suspended {
- return self.protoError(ErrSuspendedPeer, "")
- }
- */
-
- self.peer.Debugf("Peer is [eth] capable (%d/%d). TD=%v H=%x\n", status.ProtocolVersion, status.NetworkId, status.TD, status.CurrentBlock[:4])
-
- return nil
-}
-
-func (self *ethProtocol) requestBlockHashes(from common.Hash) error {
- self.peer.Debugf("fetching hashes (%d) %x...\n", maxHashes, from[0:4])
- return p2p.Send(self.rw, GetBlockHashesMsg, getBlockHashesMsgData{from, maxHashes})
-}
-
-func (self *ethProtocol) requestBlocks(hashes []common.Hash) error {
- self.peer.Debugf("fetching %v blocks", len(hashes))
- return p2p.Send(self.rw, GetBlocksMsg, hashes)
-}
-
-/*
-func (self *ethProtocol) newRespBlockCh() BlockPack {
- self.blockRespCh = make(chan blockResp)
- return self.blockRespCh
-}
-
-func (self *ethProtocol) RequestBlocks(hashes *set.Set) <-chan []*types.Block {
- out := make(chan []*types.Block)
- go func() {
- done:
- for {
- select {
- case blockResp := <-self.newRespBlockCh():
- if len(blockResp.blocks) {
- }
- case <-time.After(5 * time.Second):
- }
- }
-
- close(out)
- }()
- return out
-}
-*/
-
-func (self *ethProtocol) protoError(code int, format string, params ...interface{}) (err *errs.Error) {
- err = self.errors.New(code, format, params...)
- //err.Log(self.peer.Logger)
- err.Log(glog.V(logger.Info))
- return
-}
-
-func (self *ethProtocol) sendStatus() error {
- td, currentBlock, genesisBlock := self.chainManager.Status()
- return p2p.Send(self.rw, StatusMsg, &statusMsgData{
- ProtocolVersion: uint32(self.protocolVersion),
- NetworkId: uint32(self.networkId),
- TD: td,
- CurrentBlock: currentBlock,
- GenesisBlock: genesisBlock,
- })
-}
-
-func (self *ethProtocol) protoErrorDisconnect(err *errs.Error) {
- err.Log(glog.V(logger.Info))
- if err.Fatal() {
- self.peer.Disconnect(p2p.DiscSubprotocolError)
- }
-
-}
generated by cgit (git 2.34.1) at 2024-11-14 09:28:06 +0800