eth

package
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 Go to latest Published: Mar 23, 2017 License: GPL-3.0 Imports: 47 Imported by: 0

Documentation

Overview

Package eth implements the Ethereum protocol.

Package eth implements the Ethereum protocol.

Index

Constants

View Source 
const (
	NetworkId          = 1
	ProtocolMaxMsgSize = 10 * 1024 * 1024 // Maximum cap on the size of a protocol message
)
View Source 
const (
	// Protocol messages belonging to eth/62
	StatusMsg          = 0x00
	NewBlockHashesMsg  = 0x01
	TxMsg              = 0x02
	GetBlockHeadersMsg = 0x03
	BlockHeadersMsg    = 0x04
	GetBlockBodiesMsg  = 0x05
	BlockBodiesMsg     = 0x06
	NewBlockMsg        = 0x07

	// Protocol messages belonging to eth/63
	GetNodeDataMsg = 0x0d
	NodeDataMsg    = 0x0e
	GetReceiptsMsg = 0x0f
	ReceiptsMsg    = 0x10
)

eth protocol message codes

View Source 
const (
	ErrMsgTooLarge = iota
	ErrDecode
	ErrInvalidMsgCode
	ErrProtocolVersionMismatch
	ErrNetworkIdMismatch
	ErrGenesisBlockMismatch
	ErrNoStatusMsg
	ErrExtraStatusMsg
	ErrSuspendedPeer
)

Variables

View Source 
var EnableBadBlockReporting = false
View Source 
var ProtocolLengths = []uint64{17, 8}

Number of implemented message corresponding to different protocol versions.

View Source 
var ProtocolName = "eth"

Official short name of the protocol used during capability negotiation.

View Source 
var ProtocolVersions = []uint{eth63, eth62}

Supported versions of the eth protocol (first is primary).

Functions

func CreatePoW 

func CreatePoW(config *Config) (*ethash.Ethash, error)

CreatePoW creates the required type of PoW instance for an Ethereum service

func SetupGenesisBlock 

func SetupGenesisBlock(chainDb *ethdb.Database, config *Config) error

SetupGenesisBlock initializes the genesis block for an Ethereum service

Types

type BlockTraceResult 

type BlockTraceResult struct {
	Validated  bool                  `json:"validated"`
	StructLogs []ethapi.StructLogRes `json:"structLogs"`
	Error      string                `json:"error"`
}

BlockTraceResult is the returned value when replaying a block to check for consensus results and full VM trace logs for all included transactions.

type Config 

type Config struct {
	ChainConfig *core.ChainConfig // chain configuration

	NetworkId            int    // Network ID to use for selecting peers to connect to
	Genesis              string // Genesis JSON to seed the chain database with
	SingleBlockMaker     bool   // Assume this node is the only node on the network allowed to create blocks
	EnableNodePermission bool   //Used for enabling / disabling node permissioning

	SkipBcVersionCheck bool // e.g. blockchain export
	DatabaseCache      int
	DatabaseHandles    int

	NatSpec   bool
	DocRoot   string
	AutoDAG   bool
	PowTest   bool
	PowShared bool
	ExtraData []byte

	Etherbase    common.Address
	MinerThreads int
	SolcPath     string

	EnableJit bool
	ForceJit  bool

	TestGenesisBlock *types.Block   // Genesis block to seed the chain database with (testing only!)
	TestGenesisState ethdb.Database // Genesis state to seed the database with (testing only!)

	VoteMinBlockTime uint
	VoteMaxBlockTime uint

	RaftMode bool
}

type ContractBackend 

type ContractBackend struct {
	// contains filtered or unexported fields
}

ContractBackend implements bind.ContractBackend with direct calls to Ethereum internals to support operating on contracts within subprotocols like eth and swarm.

Internally this backend uses the already exposed API endpoints of the Ethereum object. These should be rewritten to internal Go method calls when the Go API is refactored to support a clean library use.

func NewContractBackend 

func NewContractBackend(eth *Ethereum) *ContractBackend

NewContractBackend creates a new native contract backend using an existing Etheruem object.

func (*ContractBackend) CallContract 

func (b *ContractBackend) CallContract(ctx context.Context, msg ethereum.CallMsg, blockNum *big.Int) ([]byte, error)

ContractCall implements bind.ContractCaller executing an Ethereum contract call with the specified data as the input. The pending flag requests execution against the pending block, not the stable head of the chain.

func (*ContractBackend) CodeAt 

func (b *ContractBackend) CodeAt(ctx context.Context, contract common.Address, blockNum *big.Int) ([]byte, error)

CodeAt retrieves any code associated with the contract from the local API.

func (*ContractBackend) EstimateGas 

func (b *ContractBackend) EstimateGas(ctx context.Context, msg ethereum.CallMsg) (*big.Int, error)

EstimateGasLimit implements bind.ContractTransactor triing to estimate the gas needed to execute a specific transaction based on the current pending state of the backend blockchain. There is no guarantee that this is the true gas limit requirement as other transactions may be added or removed by miners, but it should provide a basis for setting a reasonable default.

func (*ContractBackend) PendingCallContract 

func (b *ContractBackend) PendingCallContract(ctx context.Context, msg ethereum.CallMsg) ([]byte, error)

ContractCall implements bind.ContractCaller executing an Ethereum contract call with the specified data as the input. The pending flag requests execution against the pending block, not the stable head of the chain.

func (*ContractBackend) PendingCodeAt 

func (b *ContractBackend) PendingCodeAt(ctx context.Context, contract common.Address) ([]byte, error)

CodeAt retrieves any code associated with the contract from the local API.

func (*ContractBackend) PendingNonceAt 

func (b *ContractBackend) PendingNonceAt(ctx context.Context, account common.Address) (uint64, error)

PendingAccountNonce implements bind.ContractTransactor retrieving the current pending nonce associated with an account.

func (*ContractBackend) SendTransaction 

func (b *ContractBackend) SendTransaction(ctx context.Context, tx *types.Transaction) error

SendTransaction implements bind.ContractTransactor injects the transaction into the pending pool for execution.

func (*ContractBackend) SuggestGasPrice 

func (b *ContractBackend) SuggestGasPrice(ctx context.Context) (*big.Int, error)

SuggestGasPrice implements bind.ContractTransactor retrieving the currently suggested gas price to allow a timely execution of a transaction.

type EthApiBackend 

type EthApiBackend struct {
	// contains filtered or unexported fields
}

EthApiBackend implements ethapi.Backend for full nodes

func (*EthApiBackend) AccountManager 

func (b *EthApiBackend) AccountManager() *accounts.Manager

func (*EthApiBackend) BlockByNumber 

func (b *EthApiBackend) BlockByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Block, error)

func (*EthApiBackend) ChainDb 

func (b *EthApiBackend) ChainDb() ethdb.Database

func (*EthApiBackend) Downloader 

func (b *EthApiBackend) Downloader() *downloader.Downloader

func (*EthApiBackend) EventMux 

func (b *EthApiBackend) EventMux() *event.TypeMux

func (*EthApiBackend) GetBlock 

func (b *EthApiBackend) GetBlock(ctx context.Context, blockHash common.Hash) (*types.Block, error)

func (*EthApiBackend) GetPoolNonce 

func (b *EthApiBackend) GetPoolNonce(ctx context.Context, addr common.Address) (uint64, error)

func (*EthApiBackend) GetPoolTransaction 

func (b *EthApiBackend) GetPoolTransaction(hash common.Hash) *types.Transaction

func (*EthApiBackend) GetPoolTransactions 

func (b *EthApiBackend) GetPoolTransactions() types.Transactions

func (*EthApiBackend) GetReceipts 

func (b *EthApiBackend) GetReceipts(ctx context.Context, blockHash common.Hash) (types.Receipts, error)

func (*EthApiBackend) GetTd 

func (b *EthApiBackend) GetTd(blockHash common.Hash) *big.Int

func (*EthApiBackend) GetVMEnv 

func (b *EthApiBackend) GetVMEnv(ctx context.Context, msg core.Message, state ethapi.State, header *types.Header) (vm.Environment, func() error, error)

func (*EthApiBackend) HeaderByNumber 

func (b *EthApiBackend) HeaderByNumber(blockNr rpc.BlockNumber) *types.Header

func (*EthApiBackend) ProtocolVersion 

func (b *EthApiBackend) ProtocolVersion() int

func (*EthApiBackend) RemoveTx 

func (b *EthApiBackend) RemoveTx(txHash common.Hash)

func (*EthApiBackend) SendTx 

func (b *EthApiBackend) SendTx(ctx context.Context, signedTx *types.Transaction) error

func (*EthApiBackend) SetHead 

func (b *EthApiBackend) SetHead(number uint64)

func (*EthApiBackend) StateAndHeaderByNumber 

func (b *EthApiBackend) StateAndHeaderByNumber(blockNr rpc.BlockNumber) (ethapi.State, *types.Header, error)

func (*EthApiBackend) Stats 

func (b *EthApiBackend) Stats() (pending int, queued int)

func (*EthApiBackend) SuggestPrice 

func (b *EthApiBackend) SuggestPrice(ctx context.Context) (*big.Int, error)

func (*EthApiBackend) TxPoolContent 

func (b *EthApiBackend) TxPoolContent() (map[common.Address]types.Transactions, map[common.Address]types.Transactions)

type EthApiState 

type EthApiState struct {
	// contains filtered or unexported fields
}

func (EthApiState) GetBalance 

func (s EthApiState) GetBalance(ctx context.Context, addr common.Address) (*big.Int, error)

func (EthApiState) GetCode 

func (s EthApiState) GetCode(ctx context.Context, addr common.Address) ([]byte, error)

func (EthApiState) GetNonce 

func (s EthApiState) GetNonce(ctx context.Context, addr common.Address) (uint64, error)

func (EthApiState) GetState 

func (s EthApiState) GetState(ctx context.Context, a common.Address, b common.Hash) (common.Hash, error)

type EthNodeInfo 

type EthNodeInfo struct {
	Network    int         `json:"network"`    // Ethereum network ID (0=Olympic, 1=Frontier, 2=Morden)
	Difficulty *big.Int    `json:"difficulty"` // Total difficulty of the host's blockchain
	Genesis    common.Hash `json:"genesis"`    // SHA3 hash of the host's genesis block
	Head       common.Hash `json:"head"`       // SHA3 hash of the host's best owned block
}

EthNodeInfo represents a short summary of the Ethereum sub-protocol metadata known about the host peer.

type Ethereum 

type Ethereum struct {
	AutoDAG bool

	NatSpec bool
	PowTest bool
	// contains filtered or unexported fields
}

Ethereum implements the Ethereum full node service.

func New 

func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error)

New creates a new Ethereum object (including the initialisation of the common Ethereum object)

func (*Ethereum) APIs 

func (s *Ethereum) APIs() []rpc.API

APIs returns the collection of RPC services the ethereum package offers. NOTE, some of these services probably need to be moved to somewhere else.

func (*Ethereum) AccountManager 

func (s *Ethereum) AccountManager() *accounts.Manager

func (*Ethereum) BlockChain 

func (s *Ethereum) BlockChain() *core.BlockChain

func (*Ethereum) ChainDb 

func (s *Ethereum) ChainDb() ethdb.Database

func (*Ethereum) Downloader 

func (s *Ethereum) Downloader() *downloader.Downloader

func (*Ethereum) EthVersion 

func (s *Ethereum) EthVersion() int

func (*Ethereum) Etherbase 

func (s *Ethereum) Etherbase() (eb common.Address, err error)

func (*Ethereum) EventMux 

func (s *Ethereum) EventMux() *event.TypeMux

func (*Ethereum) HTTPClient 

func (self *Ethereum) HTTPClient() *httpclient.HTTPClient

HTTPClient returns the light http client used for fetching offchain docs (natspec, source for verification)

func (*Ethereum) IsListening 

func (s *Ethereum) IsListening() bool

func (*Ethereum) NetVersion 

func (s *Ethereum) NetVersion() int

func (*Ethereum) Pow 

func (s *Ethereum) Pow() *ethash.Ethash

func (*Ethereum) Protocols 

func (s *Ethereum) Protocols() []p2p.Protocol

Protocols implements node.Service, returning all the currently configured network protocols to start.

func (*Ethereum) ResetWithGenesisBlock 

func (s *Ethereum) ResetWithGenesisBlock(gb *types.Block)

func (*Ethereum) SetEtherbase 

func (self *Ethereum) SetEtherbase(etherbase common.Address)

set in js console via admin interface or wrapper from cli flags

func (*Ethereum) Start 

func (s *Ethereum) Start(srvr *p2p.Server) error

Start implements node.Service, starting all internal goroutines needed by the Ethereum protocol implementation.

func (*Ethereum) StartAutoDAG 

func (self *Ethereum) StartAutoDAG()

StartAutoDAG() spawns a go routine that checks the DAG every autoDAGcheckInterval by default that is 10 times per epoch in epoch n, if we past autoDAGepochHeight within-epoch blocks, it calls ethash.MakeDAG to pregenerate the DAG for the next epoch n+1 if it does not exist yet as well as remove the DAG for epoch n-1 the loop quits if autodagquit channel is closed, it can safely restart and stop any number of times. For any more sophisticated pattern of DAG generation, use CLI subcommand makedag

func (*Ethereum) StartBlockVoting 

func (s *Ethereum) StartBlockVoting(client *rpc.Client, voteKey, blockMakerKey *ecdsa.PrivateKey) error

func (*Ethereum) Stop 

func (s *Ethereum) Stop() error

Stop implements node.Service, terminating all internal goroutines used by the Ethereum protocol.

func (*Ethereum) StopAutoDAG 

func (self *Ethereum) StopAutoDAG()

stopAutoDAG stops automatic DAG pregeneration by quitting the loop

func (*Ethereum) TxPool 

func (s *Ethereum) TxPool() *core.TxPool

func (*Ethereum) WaitForShutdown 

func (s *Ethereum) WaitForShutdown()

This function will wait for a shutdown and resumes main thread execution

type PeerInfo 

type PeerInfo struct {
	Version    int      `json:"version"`    // Ethereum protocol version negotiated
	Difficulty *big.Int `json:"difficulty"` // Total difficulty of the peer's blockchain
	Head       string   `json:"head"`       // SHA3 hash of the peer's best owned block
}

PeerInfo represents a short summary of the Ethereum sub-protocol metadata known about a connected peer.

type PrivateAdminAPI 

type PrivateAdminAPI struct {
	// contains filtered or unexported fields
}

PrivateAdminAPI is the collection of Etheruem full node-related APIs exposed over the private admin endpoint.

func NewPrivateAdminAPI 

func NewPrivateAdminAPI(eth *Ethereum) *PrivateAdminAPI

NewPrivateAdminAPI creates a new API definition for the full node private admin methods of the Ethereum service.

func (*PrivateAdminAPI) ExportChain 

func (api *PrivateAdminAPI) ExportChain(file string) (bool, error)

ExportChain exports the current blockchain into a local file.

func (*PrivateAdminAPI) ImportChain 

func (api *PrivateAdminAPI) ImportChain(file string) (bool, error)

ImportChain imports a blockchain from a local file.

type PrivateDebugAPI 

type PrivateDebugAPI struct {
	// contains filtered or unexported fields
}

PrivateDebugAPI is the collection of Etheruem full node APIs exposed over the private debugging endpoint.

func NewPrivateDebugAPI 

func NewPrivateDebugAPI(config *core.ChainConfig, eth *Ethereum) *PrivateDebugAPI

NewPrivateDebugAPI creates a new API definition for the full node-related private debug methods of the Ethereum service.

func (*PrivateDebugAPI) TraceBlock 

func (api *PrivateDebugAPI) TraceBlock(blockRlp []byte, config *vm.LogConfig) BlockTraceResult

TraceBlock processes the given block's RLP but does not import the block in to the chain.

func (*PrivateDebugAPI) TraceBlockByHash 

func (api *PrivateDebugAPI) TraceBlockByHash(hash common.Hash, config *vm.LogConfig) BlockTraceResult

TraceBlockByHash processes the block by hash.

func (*PrivateDebugAPI) TraceBlockByNumber 

func (api *PrivateDebugAPI) TraceBlockByNumber(number uint64, config *vm.LogConfig) BlockTraceResult

TraceBlockByNumber processes the block by canonical block number.

func (*PrivateDebugAPI) TraceBlockFromFile 

func (api *PrivateDebugAPI) TraceBlockFromFile(file string, config *vm.LogConfig) BlockTraceResult

TraceBlockFromFile loads the block's RLP from the given file name and attempts to process it but does not import the block in to the chain.

func (*PrivateDebugAPI) TraceTransaction 

func (api *PrivateDebugAPI) TraceTransaction(ctx context.Context, txHash common.Hash, config *TraceArgs) (interface{}, error)

TraceTransaction returns the structured logs created during the execution of EVM and returns them as a JSON object.

type ProtocolManager 

type ProtocolManager struct {
	SubProtocols []p2p.Protocol
	// contains filtered or unexported fields
}

func NewProtocolManager 

func NewProtocolManager(config *core.ChainConfig, singleMiner bool, networkId int, mux *event.TypeMux, txpool txPool, pow pow.PoW, blockchain *core.BlockChain, chaindb ethdb.Database, raftMode bool) (*ProtocolManager, error)

NewProtocolManager returns a new ethereum sub protocol manager. The Ethereum sub protocol manages peers capable with the ethereum network.

func (*ProtocolManager) BroadcastBlock 

func (pm *ProtocolManager) BroadcastBlock(block *types.Block, propagate bool)

BroadcastBlock will either propagate a block to a subset of it's peers, or will only announce it's availability (depending what's requested).

func (*ProtocolManager) BroadcastTx 

func (pm *ProtocolManager) BroadcastTx(hash common.Hash, tx *types.Transaction)

BroadcastTx will propagate a transaction to all peers which are not known to already have the given transaction.

func (*ProtocolManager) NodeInfo 

func (self *ProtocolManager) NodeInfo() *EthNodeInfo

NodeInfo retrieves some protocol metadata about the running host node.

func (*ProtocolManager) Start 

func (pm *ProtocolManager) Start()

func (*ProtocolManager) Stop 

func (pm *ProtocolManager) Stop()

type PublicDebugAPI 

type PublicDebugAPI struct {
	// contains filtered or unexported fields
}

PublicDebugAPI is the collection of Etheruem full node APIs exposed over the public debugging endpoint.

func NewPublicDebugAPI 

func NewPublicDebugAPI(eth *Ethereum) *PublicDebugAPI

NewPublicDebugAPI creates a new API definition for the full node- related public debug methods of the Ethereum service.

func (*PublicDebugAPI) DumpBlock 

func (api *PublicDebugAPI) DumpBlock(number uint64, typ string) (state.Dump, error)

DumpBlock retrieves the entire state of the database at a given block.

type PublicEthereumAPI 

type PublicEthereumAPI struct {
	// contains filtered or unexported fields
}

PublicEthereumAPI provides an API to access Ethereum full node-related information.

func NewPublicEthereumAPI 

func NewPublicEthereumAPI(e *Ethereum) *PublicEthereumAPI

NewPublicEthereumAPI creates a new Etheruem protocol API for full nodes.

func (*PublicEthereumAPI) Coinbase 

func (s *PublicEthereumAPI) Coinbase() (common.Address, error)

Coinbase is the address that mining rewards will be send to (alias for Etherbase)

func (*PublicEthereumAPI) Etherbase 

func (s *PublicEthereumAPI) Etherbase() (common.Address, error)

Etherbase is the address that mining rewards will be send to

func (*PublicEthereumAPI) StorageRoot 

func (s *PublicEthereumAPI) StorageRoot(addr common.Address, blockNr *rpc.BlockNumber) (common.Hash, error)

StorageRoot returns the storage root of an account on the the given (optional) block height. If block number is not given the latest block is used.

type TraceArgs 

type TraceArgs struct {
	*vm.LogConfig
	Tracer  *string
	Timeout *string
}

TraceArgs holds extra parameters to trace functions

Source Files

View all Source files

Directories

Path Synopsis
Package downloader contains the manual full chain synchronisation.
 Package downloader contains the manual full chain synchronisation.
Package fetcher contains the block announcement based synchronisation.
 Package fetcher contains the block announcement based synchronisation.
Package filters implements an ethereum filtering system for block, transactions and log events.
 Package filters implements an ethereum filtering system for block, transactions and log events.

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