vnt

package
v0.6.4-alpha.2 Latest Latest
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 Go to latest Published: Oct 17, 2019 License: GPL-3.0 Imports: 49 Imported by: 0

Documentation

Overview

Package vnt implements the VNT protocol.

Index

Constants

View Source 
const (
	// Protocol messages belonging to vnt/62
	StatusMsg          = 0x00
	NewBlockHashesMsg  = 0x01
	TxMsg              = 0x02
	GetBlockHeadersMsg = 0x03
	BlockHeadersMsg    = 0x04
	GetBlockBodiesMsg  = 0x05
	BlockBodiesMsg     = 0x06
	NewBlockMsg        = 0x07

	// Protocol messages belonging to vnt/63
	GetNodeDataMsg   = 0x0d
	NodeDataMsg      = 0x0e
	GetReceiptsMsg   = 0x0f
	ReceiptsMsg      = 0x10
	BftPreprepareMsg = 0x11
	BftPrepareMsg    = 0x12
	BftCommitMsg     = 0x13
)

vnt protocol message codes

View Source 
const (
	ErrMsgTooLarge = iota
	ErrDecode
	ErrInvalidMsgCode
	ErrProtocolVersionMismatch
	ErrNetworkIdMismatch
	ErrGenesisBlockMismatch
	ErrNoStatusMsg
	ErrExtraStatusMsg
	ErrSuspendedPeer
)
View Source 
const ProtocolMaxMsgSize = 10 * 1024 * 1024 // Maximum cap on the size of a protocol message

Variables

View Source 
var DefaultConfig = Config{
	SyncMode:      downloader.FullSync,
	NetworkId:     1,
	LightPeers:    100,
	DatabaseCache: 768,
	TrieCache:     256,
	TrieTimeout:   300 * time.Millisecond,
	GasPrice:      big.NewInt(18 * params.Gwei),

	TxPool: core.DefaultTxPoolConfig,
	GPO: gasprice.Config{
		Blocks:     20,
		Percentile: 60,
	},
}

DefaultConfig contains default settings for use on the VNT main net.

View Source 
var ProtocolLengths = []uint64{20, 8}

ProtocolLengths are the number of implemented message corresponding to different protocol versions.

View Source 
var ProtocolName = "vnt"

ProtocolName is the official short name of the protocol used during capability negotiation.

View Source 
var ProtocolVersions = []uint{vnt63, vnt62}

ProtocolVersions are the upported versions of the vnt protocol (first is primary).

Functions

func CreateConsensusEngine 

func CreateConsensusEngine(ctx *node.ServiceContext, chainConfig *params.ChainConfig, db vntdb.Database) consensus.Engine

CreateConsensusEngine creates the required type of consensus engine instance for an vnt service

func CreateDB 

func CreateDB(ctx *node.ServiceContext, config *Config, name string) (vntdb.Database, error)

CreateDB creates the chain database.

func NewBloomIndexer 

func NewBloomIndexer(db vntdb.Database, size uint64) *core.ChainIndexer

NewBloomIndexer returns a chain indexer that generates bloom bits data for the canonical chain for fast logs filtering.

Types

type BadBlockArgs 

type BadBlockArgs struct {
	Hash  common.Hash            `json:"hash"`
	Block map[string]interface{} `json:"block"`
	RLP   string                 `json:"rlp"`
}

BadBlockArgs represents the entries in the list returned when bad blocks are queried.

type BloomIndexer 

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

BloomIndexer implements a core.ChainIndexer, building up a rotated bloom bits index for the VNT header bloom filters, permitting blazing fast filtering.

func (*BloomIndexer) Commit 

func (b *BloomIndexer) Commit() error

Commit implements core.ChainIndexerBackend, finalizing the bloom section and writing it out into the database.

func (*BloomIndexer) Process 

func (b *BloomIndexer) Process(header *types.Header)

Process implements core.ChainIndexerBackend, adding a new header's bloom into the index.

func (*BloomIndexer) Reset 

func (b *BloomIndexer) Reset(section uint64, lastSectionHead common.Hash) error

Reset implements core.ChainIndexerBackend, starting a new bloombits index section.

type Config 

type Config struct {
	// The genesis block, which is inserted if the database is empty.
	// If nil, the VNT main net block is used.
	Genesis *core.Genesis `toml:",omitempty"`

	// Protocol options
	NetworkId uint64 // Network ID to use for selecting peers to connect to
	SyncMode  downloader.SyncMode
	NoPruning bool

	// Light client options
	LightServ  int `toml:",omitempty"` // Maximum percentage of time allowed for serving LES requests
	LightPeers int `toml:",omitempty"` // Maximum number of LES client peers

	// Database options
	SkipBcVersionCheck bool `toml:"-"`
	DatabaseHandles    int  `toml:"-"`
	DatabaseCache      int
	TrieCache          int
	TrieTimeout        time.Duration

	// Producing-related options
	Coinbase  common.Address `toml:",omitempty"`
	ExtraData []byte         `toml:",omitempty"`
	GasPrice  *big.Int

	// Transaction pool options
	TxPool core.TxPoolConfig

	// Gas Price Oracle options
	GPO gasprice.Config

	// Enables tracking of SHA3 preimages in the VM
	EnablePreimageRecording bool

	// Miscellaneous options
	DocRoot string `toml:"-"`
}

func (Config) MarshalTOML 

func (c Config) MarshalTOML() (interface{}, error)

func (*Config) UnmarshalTOML 

func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error

type LesServer 

type LesServer interface {
	Start(srvr *vntp2p.Server)
	Stop()
	Protocols() []vntp2p.Protocol
	SetBloomBitsIndexer(bbIndexer *core.ChainIndexer)
}

type NodeInfo 

type NodeInfo struct {
	Network    uint64              `json:"network"`    // VNT network ID (1=Frontier)
	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
	Config     *params.ChainConfig `json:"config"`     // Chain configuration for the fork rules
	Head       common.Hash         `json:"head"`       // SHA3 hash of the host's best owned block
}

NodeInfo represents a short summary of the VNT sub-protocol metadata known about the host peer.

type PeerInfo 

type PeerInfo struct {
	Version    int      `json:"version"`    // VNT 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 VNT sub-protocol metadata known about a connected peer.

type PrivateAdminAPI 

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

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

func NewPrivateAdminAPI 

func NewPrivateAdminAPI(vnt *VNT) *PrivateAdminAPI

NewPrivateAdminAPI creates a new API definition for the full node private admin methods of the VNT 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 VNT full node APIs exposed over the private debugging endpoint.

func NewPrivateDebugAPI 

func NewPrivateDebugAPI(config *params.ChainConfig, vnt *VNT) *PrivateDebugAPI

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

func (*PrivateDebugAPI) GetBadBlocks 

func (api *PrivateDebugAPI) GetBadBlocks(ctx context.Context) ([]*BadBlockArgs, error)

GetBadBLocks returns a list of the last 'bad blocks' that the client has seen on the network and returns them as a JSON list of block-hashes

func (*PrivateDebugAPI) GetModifiedAccountsByHash 

func (api *PrivateDebugAPI) GetModifiedAccountsByHash(startHash common.Hash, endHash *common.Hash) ([]common.Address, error)

GetModifiedAccountsByHash returns all accounts that have changed between the two blocks specified. A change is defined as a difference in nonce, balance, code hash, or storage hash.

With one parameter, returns the list of accounts modified in the specified block.

func (*PrivateDebugAPI) GetModifiedAccountsByNumber 

func (api *PrivateDebugAPI) GetModifiedAccountsByNumber(startNum uint64, endNum *uint64) ([]common.Address, error)

GetModifiedAccountsByumber returns all accounts that have changed between the two blocks specified. A change is defined as a difference in nonce, balance, code hash, or storage hash.

With one parameter, returns the list of accounts modified in the specified block.

func (*PrivateDebugAPI) Preimage 

func (api *PrivateDebugAPI) Preimage(ctx context.Context, hash common.Hash) (hexutil.Bytes, error)

Preimage is a debug API function that returns the preimage for a sha3 hash, if known.

func (*PrivateDebugAPI) StorageRangeAt 

func (api *PrivateDebugAPI) StorageRangeAt(ctx context.Context, blockHash common.Hash, txIndex int, contractAddress common.Address, keyStart hexutil.Bytes, maxResult int) (StorageRangeResult, error)

StorageRangeAt returns the storage at the given block height and transaction index.

func (*PrivateDebugAPI) TraceBlock 

func (api *PrivateDebugAPI) TraceBlock(ctx context.Context, blob []byte, config *TraceConfig) ([]*txTraceResult, error)

TraceBlock returns the structured logs created during the execution of WAVM and returns them as a JSON object.

func (*PrivateDebugAPI) TraceBlockByHash 

func (api *PrivateDebugAPI) TraceBlockByHash(ctx context.Context, hash common.Hash, config *TraceConfig) ([]*txTraceResult, error)

TraceBlockByHash returns the structured logs created during the execution of WAVM and returns them as a JSON object.

func (*PrivateDebugAPI) TraceBlockByNumber 

func (api *PrivateDebugAPI) TraceBlockByNumber(ctx context.Context, number rpc.BlockNumber, config *TraceConfig) ([]*txTraceResult, error)

TraceBlockByNumber returns the structured logs created during the execution of WAVM and returns them as a JSON object.

func (*PrivateDebugAPI) TraceBlockFromFile 

func (api *PrivateDebugAPI) TraceBlockFromFile(ctx context.Context, file string, config *TraceConfig) ([]*txTraceResult, error)

TraceBlockFromFile returns the structured logs created during the execution of WAVM and returns them as a JSON object.

func (*PrivateDebugAPI) TraceChain 

func (api *PrivateDebugAPI) TraceChain(ctx context.Context, start, end rpc.BlockNumber, config *TraceConfig) (*rpc.Subscription, error)

TraceChain returns the structured logs created during the execution of WAVM between two blocks (excluding start) and returns them as a JSON object.

func (*PrivateDebugAPI) TraceTransaction 

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

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

type PrivateProducerAPI added in v0.6.2 

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

PrivateProducerAPI provides private RPC methods to control the producer. These methods can be abused by external users and must be considered insecure for use by untrusted users.

func NewPrivateProducerAPI added in v0.6.2 

func NewPrivateProducerAPI(e *VNT) *PrivateProducerAPI

NewPrivateProducerAPI create a new RPC service which controls the producer of this node.

func (*PrivateProducerAPI) SetCoinbase added in v0.6.2 

func (api *PrivateProducerAPI) SetCoinbase(coinbase common.Address) bool

SetCoinbase sets the coinbase of the producer

func (*PrivateProducerAPI) SetExtra added in v0.6.2 

func (api *PrivateProducerAPI) SetExtra(extra string) (bool, error)

SetExtra sets the extra data string that is included when this producer mines a block.

func (*PrivateProducerAPI) SetGasPrice added in v0.6.2 

func (api *PrivateProducerAPI) SetGasPrice(gasPrice hexutil.Big) bool

SetGasPrice sets the minimum accepted gas price for the producer.

func (*PrivateProducerAPI) Start added in v0.6.2 

func (api *PrivateProducerAPI) Start(threads *int) error

Start the producer with the given number of threads. If threads is nil the number of workers started is equal to the number of logical CPUs that are usable by this process. If block producing is already running, this method adjust the number of threads allowed to use.

func (*PrivateProducerAPI) Stop added in v0.6.2 

func (api *PrivateProducerAPI) Stop() bool

Stop the producer

type ProtocolManager 

type ProtocolManager struct {
	SubProtocols []vntp2p.Protocol
	// contains filtered or unexported fields
}

func NewProtocolManager 

func NewProtocolManager(config *params.ChainConfig, mode downloader.SyncMode, networkId uint64, mux *event.TypeMux, txpool txPool, engine consensus.Engine, blockchain *core.BlockChain, chaindb vntdb.Database, node *node.Node) (*ProtocolManager, error)

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

func (*ProtocolManager) BroadcastBftMsg 

func (pm *ProtocolManager) BroadcastBftMsg(bftMsg types.BftMsg)

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) BroadcastTxs 

func (pm *ProtocolManager) BroadcastTxs(txs types.Transactions)

BroadcastTxs will propagate a batch of transactions to all peers which are not known to already have the given transaction.

func (*ProtocolManager) NodeInfo 

func (pm *ProtocolManager) NodeInfo() *NodeInfo

NodeInfo retrieves some protocol metadata about the running host node.

func (*ProtocolManager) Start 

func (pm *ProtocolManager) Start(maxPeers int)

func (*ProtocolManager) Stop 

func (pm *ProtocolManager) Stop()

type PublicDebugAPI 

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

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

func NewPublicDebugAPI 

func NewPublicDebugAPI(vnt *VNT) *PublicDebugAPI

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

func (*PublicDebugAPI) DumpBlock 

func (api *PublicDebugAPI) DumpBlock(blockNr rpc.BlockNumber) (state.Dump, error)

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

type PublicProducerAPI added in v0.6.2 

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

PublicProducerAPI provides an API to control the producer. It offers only methods that operate on data that pose no security risk when it is publicly accessible.

func NewPublicProducerAPI added in v0.6.2 

func NewPublicProducerAPI(e *VNT) *PublicProducerAPI

NewPublicProducerAPI create a new PublicProducerAPI instance.

func (*PublicProducerAPI) Producing added in v0.6.2 

func (api *PublicProducerAPI) Producing() bool

Producing returns an indication if this node is currently block producing.

type PublicVntAPI 

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

PublicVntAPI provides an API to access VNT full node-related information.

func NewPublicVntAPI 

func NewPublicVntAPI(e *VNT) *PublicVntAPI

NewPublicVntAPI creates a new VNT protocol API for full nodes.

func (*PublicVntAPI) Coinbase 

func (api *PublicVntAPI) Coinbase() (common.Address, error)

Coinbase is the address that block producing rewards will be send to

type StorageRangeResult 

type StorageRangeResult struct {
	Storage storageMap   `json:"storage"`
	NextKey *common.Hash `json:"nextKey"` // nil if Storage includes the last key in the trie.
}

StorageRangeResult is the result of a debug_storageRangeAt API call.

type TraceConfig 

type TraceConfig struct {
	*vm.LogConfig
	Tracer  *string
	Timeout *string
	Reexec  *uint64
}

TraceConfig holds extra parameters to trace functions.

type VNT 

type VNT struct {
	APIBackend *VntAPIBackend
	// contains filtered or unexported fields
}

VNT implements the VNT full node service.

func New 

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

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

func (*VNT) APIs 

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

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

func (*VNT) AccountManager 

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

func (*VNT) AddLesServer 

func (s *VNT) AddLesServer(ls LesServer)

func (*VNT) BlockChain 

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

func (*VNT) ChainDb 

func (s *VNT) ChainDb() vntdb.Database

func (*VNT) Coinbase 

func (s *VNT) Coinbase() (eb common.Address, err error)

func (*VNT) Downloader 

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

func (*VNT) Engine 

func (s *VNT) Engine() consensus.Engine

func (*VNT) EventMux 

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

func (*VNT) IsListening 

func (s *VNT) IsListening() bool

func (*VNT) IsProducing 

func (s *VNT) IsProducing() bool

func (*VNT) NetVersion 

func (s *VNT) NetVersion() uint64

func (*VNT) Producer added in v0.6.2 

func (s *VNT) Producer() *producer.Producer

func (*VNT) Protocols 

func (s *VNT) Protocols() []vntp2p.Protocol

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

func (*VNT) ResetWithGenesisBlock 

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

func (*VNT) SetCoinbase 

func (s *VNT) SetCoinbase(coinbase common.Address)

SetCoinbase sets the block producing reward address.

func (*VNT) Start 

func (s *VNT) Start(srvr *vntp2p.Server) error

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

func (*VNT) StartProducing 

func (s *VNT) StartProducing(local bool) error

func (*VNT) Stop 

func (s *VNT) Stop() error

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

func (*VNT) StopProducing 

func (s *VNT) StopProducing()

func (*VNT) TxPool 

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

func (*VNT) VntVersion added in v0.6.2 

func (s *VNT) VntVersion() int

type VntAPIBackend 

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

VntAPIBackend implements vntapi.Backend for full nodes

func (*VntAPIBackend) AccountManager 

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

func (*VntAPIBackend) BlockByNumber 

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

func (*VntAPIBackend) BloomStatus 

func (b *VntAPIBackend) BloomStatus() (uint64, uint64)

func (*VntAPIBackend) ChainConfig 

func (b *VntAPIBackend) ChainConfig() *params.ChainConfig

func (*VntAPIBackend) ChainDb 

func (b *VntAPIBackend) ChainDb() vntdb.Database

func (*VntAPIBackend) CurrentBlock 

func (b *VntAPIBackend) CurrentBlock() *types.Block

func (*VntAPIBackend) Downloader 

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

func (*VntAPIBackend) EventMux 

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

func (*VntAPIBackend) GetBlock 

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

func (*VntAPIBackend) GetLogs 

func (b *VntAPIBackend) GetLogs(ctx context.Context, hash common.Hash) ([][]*types.Log, error)

func (*VntAPIBackend) GetPoolNonce 

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

func (*VntAPIBackend) GetPoolTransaction 

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

func (*VntAPIBackend) GetPoolTransactions 

func (b *VntAPIBackend) GetPoolTransactions() (types.Transactions, error)

func (*VntAPIBackend) GetReceipts 

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

func (*VntAPIBackend) GetTd 

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

func (*VntAPIBackend) GetVM 

func (b *VntAPIBackend) GetVM(ctx context.Context, msg core.Message, state *state.StateDB, header *types.Header, vmCfg vm.Config) (vm.VM, func() error, error)

func (*VntAPIBackend) HeaderByNumber 

func (b *VntAPIBackend) HeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Header, error)

func (*VntAPIBackend) ProtocolVersion 

func (b *VntAPIBackend) ProtocolVersion() int

func (*VntAPIBackend) SendTx 

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

func (*VntAPIBackend) ServiceFilter 

func (b *VntAPIBackend) ServiceFilter(ctx context.Context, session *bloombits.MatcherSession)

func (*VntAPIBackend) SetHead 

func (b *VntAPIBackend) SetHead(number uint64)

func (*VntAPIBackend) StateAndHeaderByNumber 

func (b *VntAPIBackend) StateAndHeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*state.StateDB, *types.Header, error)

func (*VntAPIBackend) Stats 

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

func (*VntAPIBackend) SubscribeChainEvent 

func (b *VntAPIBackend) SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription

func (*VntAPIBackend) SubscribeChainHeadEvent 

func (b *VntAPIBackend) SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription

func (*VntAPIBackend) SubscribeChainSideEvent 

func (b *VntAPIBackend) SubscribeChainSideEvent(ch chan<- core.ChainSideEvent) event.Subscription

func (*VntAPIBackend) SubscribeLogsEvent 

func (b *VntAPIBackend) SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription

func (*VntAPIBackend) SubscribeNewTxsEvent 

func (b *VntAPIBackend) SubscribeNewTxsEvent(ch chan<- core.NewTxsEvent) event.Subscription

func (*VntAPIBackend) SubscribeRemovedLogsEvent 

func (b *VntAPIBackend) SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription

func (*VntAPIBackend) SuggestPrice 

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

func (*VntAPIBackend) TxPoolContent 

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

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 the hubble filtering system for block, transactions and log events.
 Package filters implements the hubble filtering system for block, transactions and log events.

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