types

package
v0.24.0 Latest Latest
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 Go to latest Published: Sep 7, 2018 License: Apache-2.0 Imports: 27 Imported by: 0

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Index

Constants

View Source 
const (
	// MaxHeaderBytes is a maximum header size (including amino overhead).
	MaxHeaderBytes = 511

	// MaxAminoOverheadForBlock - maximum amino overhead to encode a block (up to
	// MaxBlockSizeBytes in size) not including it's parts except Data.
	//
	// Uvarint length of MaxBlockSizeBytes: 4 bytes
	// 2 fields (2 embedded):               2 bytes
	// Uvarint length of Data.Txs:          4 bytes
	// Data.Txs field:                      1 byte
	MaxAminoOverheadForBlock = 11
)
View Source 
const (
	EventCompleteProposal    = "CompleteProposal"
	EventLock                = "Lock"
	EventNewBlock            = "NewBlock"
	EventNewBlockHeader      = "NewBlockHeader"
	EventNewRound            = "NewRound"
	EventNewRoundStep        = "NewRoundStep"
	EventPolka               = "Polka"
	EventProposalHeartbeat   = "ProposalHeartbeat"
	EventRelock              = "Relock"
	EventTimeoutPropose      = "TimeoutPropose"
	EventTimeoutWait         = "TimeoutWait"
	EventTx                  = "Tx"
	EventUnlock              = "Unlock"
	EventValidatorSetUpdates = "ValidatorSetUpdates"
	EventVote                = "Vote"
)

Reserved event types (alphabetically sorted).

View Source 
const (
	// EventTypeKey is a reserved key, used to specify event type in tags.
	EventTypeKey = "tm.event"
	// TxHashKey is a reserved key, used to specify transaction's hash.
	// see EventBus#PublishEventTx
	TxHashKey = "tx.hash"
	// TxHeightKey is a reserved key, used to specify transaction block's height.
	// see EventBus#PublishEventTx
	TxHeightKey = "tx.height"
)
View Source 
const (
	ABCIEvidenceTypeDuplicateVote = "duplicate/vote"
	ABCIEvidenceTypeMockGood      = "mock/good"
)
View Source 
const (
	ABCIPubKeyTypeEd25519   = "ed25519"
	ABCIPubKeyTypeSecp256k1 = "secp256k1"
)
View Source 
const (
	VoteTypePrevote   = byte(0x01)
	VoteTypePrecommit = byte(0x02)
)

Types of votes TODO Make a new type "VoteType"

View Source 
const (
	// MaxBlockSizeBytes is the maximum permitted size of the blocks.
	MaxBlockSizeBytes = 104857600 // 100MB
)
View Source 
const (
	// MaxChainIDLen is a maximum length of the chain ID.
	MaxChainIDLen = 50
)
View Source 
const (
	// MaxEvidenceBytes is a maximum size of any evidence (including amino overhead).
	MaxEvidenceBytes = 440
)
View Source 
const (
	// MaxVoteBytes is a maximum vote size (including amino overhead).
	MaxVoteBytes = 200
)
View Source 
const TimeFormat = time.RFC3339Nano

TimeFormat is used for generating the sigs

Variables

View Source 
var (
	EventQueryCompleteProposal    = QueryForEvent(EventCompleteProposal)
	EventQueryLock                = QueryForEvent(EventLock)
	EventQueryNewBlock            = QueryForEvent(EventNewBlock)
	EventQueryNewBlockHeader      = QueryForEvent(EventNewBlockHeader)
	EventQueryNewRound            = QueryForEvent(EventNewRound)
	EventQueryNewRoundStep        = QueryForEvent(EventNewRoundStep)
	EventQueryPolka               = QueryForEvent(EventPolka)
	EventQueryProposalHeartbeat   = QueryForEvent(EventProposalHeartbeat)
	EventQueryRelock              = QueryForEvent(EventRelock)
	EventQueryTimeoutPropose      = QueryForEvent(EventTimeoutPropose)
	EventQueryTimeoutWait         = QueryForEvent(EventTimeoutWait)
	EventQueryTx                  = QueryForEvent(EventTx)
	EventQueryUnlock              = QueryForEvent(EventUnlock)
	EventQueryValidatorSetUpdates = QueryForEvent(EventValidatorSetUpdates)
	EventQueryVote                = QueryForEvent(EventVote)
)
View Source 
var (
	ErrPartSetUnexpectedIndex = errors.New("Error part set unexpected index")
	ErrPartSetInvalidProof    = errors.New("Error part set invalid proof")
)
View Source 
var (
	ErrInvalidBlockPartSignature = errors.New("Error invalid block part signature")
	ErrInvalidBlockPartHash      = errors.New("Error invalid block part hash")
)
View Source 
var (
	ErrVoteUnexpectedStep            = errors.New("Unexpected step")
	ErrVoteInvalidValidatorIndex     = errors.New("Invalid validator index")
	ErrVoteInvalidValidatorAddress   = errors.New("Invalid validator address")
	ErrVoteInvalidSignature          = errors.New("Invalid signature")
	ErrVoteInvalidBlockHash          = errors.New("Invalid block hash")
	ErrVoteNonDeterministicSignature = errors.New("Non-deterministic signature")
	ErrVoteNil                       = errors.New("Nil vote")
)
View Source 
var PB2TM = pb2tm{}

PB2TM is used for converting protobuf ABCI to Tendermint ABCI. UNSTABLE

View Source 
var (
	PeerStateKey = "ConsensusReactor.peerState"
)

UNSTABLE

View Source 
var TM2PB = tm2pb{}

TM2PB is used for converting Tendermint ABCI to protobuf ABCI. UNSTABLE

Functions

func CanonicalTime 

func CanonicalTime(t time.Time) string

func EventQueryTxFor 

func EventQueryTxFor(tx Tx) tmpubsub.Query

func IsVoteTypeValid 

func IsVoteTypeValid(type_ byte) bool

func QueryForEvent 

func QueryForEvent(eventType string) tmpubsub.Query

func RandValidator 

func RandValidator(randPower bool, minPower int64) (*Validator, PrivValidator)

RandValidator returns a randomized validator, useful for testing. UNSTABLE

func RandValidatorSet 

func RandValidatorSet(numValidators int, votingPower int64) (*ValidatorSet, []PrivValidator)

RandValidatorSet returns a randomized validator set, useful for testing. NOTE: PrivValidator are in order. UNSTABLE

func RegisterBlockAmino 

func RegisterBlockAmino(cdc *amino.Codec)

func RegisterEventDatas 

func RegisterEventDatas(cdc *amino.Codec)

func RegisterEvidences 

func RegisterEvidences(cdc *amino.Codec)

Types

type ABCIResult 

type ABCIResult struct {
	Code uint32       `json:"code"`
	Data cmn.HexBytes `json:"data"`
}

ABCIResult is the deterministic component of a ResponseDeliverTx. TODO: add Tags

func NewResultFromResponse 

func NewResultFromResponse(response *abci.ResponseDeliverTx) ABCIResult

NewResultFromResponse creates ABCIResult from ResponseDeliverTx.

func (ABCIResult) Hash added in v0.15.0 

func (a ABCIResult) Hash() []byte

Hash returns the canonical hash of the ABCIResult

type ABCIResults 

type ABCIResults []ABCIResult

ABCIResults wraps the deliver tx results to return a proof

func NewResults 

func NewResults(responses []*abci.ResponseDeliverTx) ABCIResults

NewResults creates ABCIResults from the list of ResponseDeliverTx.

func (ABCIResults) Bytes 

func (a ABCIResults) Bytes() []byte

Bytes serializes the ABCIResponse using wire

func (ABCIResults) Hash 

func (a ABCIResults) Hash() []byte

Hash returns a merkle hash of all results

func (ABCIResults) ProveResult 

func (a ABCIResults) ProveResult(i int) merkle.SimpleProof

ProveResult returns a merkle proof of one result from the set

type Address 

type Address = cmn.HexBytes

Address is hex bytes. TODO: crypto.Address

type Block 

type Block struct {
	Header     `json:"header"`
	Data       `json:"data"`
	Evidence   EvidenceData `json:"evidence"`
	LastCommit *Commit      `json:"last_commit"`
	// contains filtered or unexported fields
}

Block defines the atomic unit of a Tendermint blockchain. TODO: add Version byte

func MakeBlock 

func MakeBlock(height int64, txs []Tx, lastCommit *Commit, evidence []Evidence) *Block

MakeBlock returns a new block with an empty header, except what can be computed from itself. It populates the same set of fields validated by ValidateBasic.

func (*Block) Hash 

func (b *Block) Hash() cmn.HexBytes

Hash computes and returns the block hash. If the block is incomplete, block hash is nil for safety.

func (*Block) HashesTo 

func (b *Block) HashesTo(hash []byte) bool

HashesTo is a convenience function that checks if a block hashes to the given argument. Returns false if the block is nil or the hash is empty.

func (*Block) MakePartSet 

func (b *Block) MakePartSet(partSize int) *PartSet

MakePartSet returns a PartSet containing parts of a serialized block. This is the form in which the block is gossipped to peers. CONTRACT: partSize is greater than zero.

func (*Block) Size 

func (b *Block) Size() int

Size returns size of the block in bytes.

func (*Block) String 

func (b *Block) String() string

String returns a string representation of the block

func (*Block) StringIndented 

func (b *Block) StringIndented(indent string) string

StringIndented returns a string representation of the block

func (*Block) StringShort 

func (b *Block) StringShort() string

StringShort returns a shortened string representation of the block

func (*Block) ValidateBasic 

func (b *Block) ValidateBasic() error

ValidateBasic performs basic validation that doesn't involve state data. It checks the internal consistency of the block.

type BlockEventPublisher 

type BlockEventPublisher interface {
	PublishEventNewBlock(block EventDataNewBlock) error
	PublishEventNewBlockHeader(header EventDataNewBlockHeader) error
	PublishEventTx(EventDataTx) error
	PublishEventValidatorSetUpdates(EventDataValidatorSetUpdates) error
}

BlockEventPublisher publishes all block related events

type BlockGossip added in v0.15.0 

type BlockGossip struct {
	BlockPartSizeBytes int `json:"block_part_size_bytes"` // NOTE: must not be 0
}

BlockGossip determine consensus critical elements of how blocks are gossiped

func DefaultBlockGossip added in v0.15.0 

func DefaultBlockGossip() BlockGossip

DefaultBlockGossip returns a default BlockGossip.

type BlockID 

type BlockID struct {
	Hash        cmn.HexBytes  `json:"hash"`
	PartsHeader PartSetHeader `json:"parts"`
}

BlockID defines the unique ID of a block as its Hash and its PartSetHeader

func (BlockID) Equals 

func (blockID BlockID) Equals(other BlockID) bool

Equals returns true if the BlockID matches the given BlockID

func (BlockID) IsZero 

func (blockID BlockID) IsZero() bool

IsZero returns true if this is the BlockID for a nil-block

func (BlockID) Key 

func (blockID BlockID) Key() string

Key returns a machine-readable string representation of the BlockID

func (BlockID) String 

func (blockID BlockID) String() string

String returns a human readable string representation of the BlockID

type BlockMeta 

type BlockMeta struct {
	BlockID BlockID `json:"block_id"` // the block hash and partsethash
	Header  Header  `json:"header"`   // The block's Header
}

BlockMeta contains meta information about a block - namely, it's ID and Header.

func NewBlockMeta 

func NewBlockMeta(block *Block, blockParts *PartSet) *BlockMeta

NewBlockMeta returns a new BlockMeta from the block and its blockParts.

type BlockSize added in v0.15.0 

type BlockSize struct {
	MaxBytes int   `json:"max_txs_bytes"` // NOTE: must not be 0 nor greater than 100MB
	MaxGas   int64 `json:"max_gas"`
}

BlockSize contain limits on the block size.

func DefaultBlockSize added in v0.15.0 

func DefaultBlockSize() BlockSize

DefaultBlockSize returns a default BlockSize.

type CanonicalJSONBlockID added in v0.8.0 

type CanonicalJSONBlockID struct {
	Hash        cmn.HexBytes               `json:"hash,omitempty"`
	PartsHeader CanonicalJSONPartSetHeader `json:"parts,omitempty"`
}

func CanonicalBlockID 

func CanonicalBlockID(blockID BlockID) CanonicalJSONBlockID

type CanonicalJSONHeartbeat added in v0.10.3 

type CanonicalJSONHeartbeat struct {
	ChainID          string  `json:"@chain_id"`
	Type             string  `json:"@type"`
	Height           int64   `json:"height"`
	Round            int     `json:"round"`
	Sequence         int     `json:"sequence"`
	ValidatorAddress Address `json:"validator_address"`
	ValidatorIndex   int     `json:"validator_index"`
}

func CanonicalHeartbeat added in v0.10.3 

func CanonicalHeartbeat(chainID string, heartbeat *Heartbeat) CanonicalJSONHeartbeat

type CanonicalJSONPartSetHeader added in v0.8.0 

type CanonicalJSONPartSetHeader struct {
	Hash  cmn.HexBytes `json:"hash,omitempty"`
	Total int          `json:"total,omitempty"`
}

func CanonicalPartSetHeader 

func CanonicalPartSetHeader(psh PartSetHeader) CanonicalJSONPartSetHeader

type CanonicalJSONProposal added in v0.8.0 

type CanonicalJSONProposal struct {
	ChainID          string                     `json:"@chain_id"`
	Type             string                     `json:"@type"`
	BlockPartsHeader CanonicalJSONPartSetHeader `json:"block_parts_header"`
	Height           int64                      `json:"height"`
	POLBlockID       CanonicalJSONBlockID       `json:"pol_block_id"`
	POLRound         int                        `json:"pol_round"`
	Round            int                        `json:"round"`
	Timestamp        string                     `json:"timestamp"`
}

func CanonicalProposal 

func CanonicalProposal(chainID string, proposal *Proposal) CanonicalJSONProposal

type CanonicalJSONVote added in v0.8.0 

type CanonicalJSONVote struct {
	ChainID   string               `json:"@chain_id"`
	Type      string               `json:"@type"`
	BlockID   CanonicalJSONBlockID `json:"block_id"`
	Height    int64                `json:"height"`
	Round     int                  `json:"round"`
	Timestamp string               `json:"timestamp"`
	VoteType  byte                 `json:"type"`
}

func CanonicalVote 

func CanonicalVote(chainID string, vote *Vote) CanonicalJSONVote

type Commit 

type Commit struct {
	// NOTE: The Precommits are in order of address to preserve the bonded ValidatorSet order.
	// Any peer with a block can gossip precommits by index with a peer without recalculating the
	// active ValidatorSet.
	BlockID    BlockID `json:"block_id"`
	Precommits []*Vote `json:"precommits"`
	// contains filtered or unexported fields
}

Commit contains the evidence that a block was committed by a set of validators. NOTE: Commit is empty for height 1, but never nil.

func MakeCommit 

func MakeCommit(blockID BlockID, height int64, round int,
	voteSet *VoteSet,
	validators []PrivValidator) (*Commit, error)

func (*Commit) BitArray 

func (commit *Commit) BitArray() *cmn.BitArray

BitArray returns a BitArray of which validators voted in this commit

func (*Commit) FirstPrecommit added in v0.7.0 

func (commit *Commit) FirstPrecommit() *Vote

FirstPrecommit returns the first non-nil precommit in the commit. If all precommits are nil, it returns an empty precommit with height 0.

func (*Commit) GetByIndex 

func (commit *Commit) GetByIndex(index int) *Vote

GetByIndex returns the vote corresponding to a given validator index

func (*Commit) Hash 

func (commit *Commit) Hash() cmn.HexBytes

Hash returns the hash of the commit

func (*Commit) Height 

func (commit *Commit) Height() int64

Height returns the height of the commit

func (*Commit) IsCommit 

func (commit *Commit) IsCommit() bool

IsCommit returns true if there is at least one vote

func (*Commit) Round 

func (commit *Commit) Round() int

Round returns the round of the commit

func (*Commit) Size 

func (commit *Commit) Size() int

Size returns the number of votes in the commit

func (*Commit) StringIndented 

func (commit *Commit) StringIndented(indent string) string

StringIndented returns a string representation of the commit

func (*Commit) Type 

func (commit *Commit) Type() byte

Type returns the vote type of the commit, which is always VoteTypePrecommit

func (*Commit) ValidateBasic 

func (commit *Commit) ValidateBasic() error

ValidateBasic performs basic validation that doesn't involve state data. Does not actually check the cryptographic signatures.

type ConsensusParams 

type ConsensusParams struct {
	BlockSize      `json:"block_size_params"`
	TxSize         `json:"tx_size_params"`
	BlockGossip    `json:"block_gossip_params"`
	EvidenceParams `json:"evidence_params"`
}

ConsensusParams contains consensus critical parameters that determine the validity of blocks.

func DefaultConsensusParams 

func DefaultConsensusParams() *ConsensusParams

DefaultConsensusParams returns a default ConsensusParams.

func (*ConsensusParams) Hash 

func (params *ConsensusParams) Hash() []byte

Hash returns a merkle hash of the parameters to store in the block header

func (ConsensusParams) Update 

func (params ConsensusParams) Update(params2 *abci.ConsensusParams) ConsensusParams

Update returns a copy of the params with updates from the non-zero fields of p2. NOTE: note: must not modify the original

func (*ConsensusParams) Validate 

func (params *ConsensusParams) Validate() error

Validate validates the ConsensusParams to ensure all values are within their allowed limits, and returns an error if they are not.

type Data 

type Data struct {

	// Txs that will be applied by state @ block.Height+1.
	// NOTE: not all txs here are valid.  We're just agreeing on the order first.
	// This means that block.AppHash does not include these txs.
	Txs Txs `json:"txs"`
	// contains filtered or unexported fields
}

Data contains the set of transactions included in the block

func (*Data) Hash 

func (data *Data) Hash() cmn.HexBytes

Hash returns the hash of the data

func (*Data) StringIndented 

func (data *Data) StringIndented(indent string) string

StringIndented returns a string representation of the transactions

type DuplicateVoteEvidence 

type DuplicateVoteEvidence struct {
	PubKey crypto.PubKey
	VoteA  *Vote
	VoteB  *Vote
}

DuplicateVoteEvidence contains evidence a validator signed two conflicting votes.

func (*DuplicateVoteEvidence) Address 

func (dve *DuplicateVoteEvidence) Address() []byte

Address returns the address of the validator.

func (*DuplicateVoteEvidence) Equal 

func (dve *DuplicateVoteEvidence) Equal(ev Evidence) bool

Equal checks if two pieces of evidence are equal.

func (*DuplicateVoteEvidence) Hash 

func (dve *DuplicateVoteEvidence) Hash() []byte

Hash returns the hash of the evidence.

func (*DuplicateVoteEvidence) Height 

func (dve *DuplicateVoteEvidence) Height() int64

Height returns the height this evidence refers to.

func (*DuplicateVoteEvidence) String 

func (dve *DuplicateVoteEvidence) String() string

String returns a string representation of the evidence.

func (*DuplicateVoteEvidence) Verify 

func (dve *DuplicateVoteEvidence) Verify(chainID string, pubKey crypto.PubKey) error

Verify returns an error if the two votes aren't conflicting. To be conflicting, they must be from the same validator, for the same H/R/S, but for different blocks.

type ErrEvidenceInvalid 

type ErrEvidenceInvalid struct {
	Evidence   Evidence
	ErrorValue error
}

ErrEvidenceInvalid wraps a piece of evidence and the error denoting how or why it is invalid.

func NewEvidenceInvalidErr added in v0.15.0 

func NewEvidenceInvalidErr(ev Evidence, err error) *ErrEvidenceInvalid

func (*ErrEvidenceInvalid) Error 

func (err *ErrEvidenceInvalid) Error() string

Error returns a string representation of the error.

type ErrVoteConflictingVotes 

type ErrVoteConflictingVotes struct {
	*DuplicateVoteEvidence
}

func NewConflictingVoteError 

func NewConflictingVoteError(val *Validator, voteA, voteB *Vote) *ErrVoteConflictingVotes

func (*ErrVoteConflictingVotes) Error 

func (err *ErrVoteConflictingVotes) Error() string

type EventBus 

type EventBus struct {
	cmn.BaseService
	// contains filtered or unexported fields
}

EventBus is a common bus for all events going through the system. All calls are proxied to underlying pubsub server. All events must be published using EventBus to ensure correct data types.

func NewEventBus 

func NewEventBus() *EventBus

NewEventBus returns a new event bus.

func NewEventBusWithBufferCapacity 

func NewEventBusWithBufferCapacity(cap int) *EventBus

NewEventBusWithBufferCapacity returns a new event bus with the given buffer capacity.

func (*EventBus) OnStart 

func (b *EventBus) OnStart() error

func (*EventBus) OnStop 

func (b *EventBus) OnStop()

func (*EventBus) Publish 

func (b *EventBus) Publish(eventType string, eventData TMEventData) error

func (*EventBus) PublishEventCompleteProposal 

func (b *EventBus) PublishEventCompleteProposal(data EventDataRoundState) error

func (*EventBus) PublishEventLock 

func (b *EventBus) PublishEventLock(data EventDataRoundState) error

func (*EventBus) PublishEventNewBlock 

func (b *EventBus) PublishEventNewBlock(data EventDataNewBlock) error

func (*EventBus) PublishEventNewBlockHeader 

func (b *EventBus) PublishEventNewBlockHeader(data EventDataNewBlockHeader) error

func (*EventBus) PublishEventNewRound 

func (b *EventBus) PublishEventNewRound(data EventDataRoundState) error

func (*EventBus) PublishEventNewRoundStep 

func (b *EventBus) PublishEventNewRoundStep(data EventDataRoundState) error

func (*EventBus) PublishEventPolka 

func (b *EventBus) PublishEventPolka(data EventDataRoundState) error

func (*EventBus) PublishEventProposalHeartbeat added in v0.13.0 

func (b *EventBus) PublishEventProposalHeartbeat(data EventDataProposalHeartbeat) error

func (*EventBus) PublishEventRelock 

func (b *EventBus) PublishEventRelock(data EventDataRoundState) error

func (*EventBus) PublishEventTimeoutPropose 

func (b *EventBus) PublishEventTimeoutPropose(data EventDataRoundState) error

func (*EventBus) PublishEventTimeoutWait 

func (b *EventBus) PublishEventTimeoutWait(data EventDataRoundState) error

func (*EventBus) PublishEventTx 

func (b *EventBus) PublishEventTx(data EventDataTx) error

PublishEventTx publishes tx event with tags from Result. Note it will add predefined tags (EventTypeKey, TxHashKey). Existing tags with the same names will be overwritten.

func (*EventBus) PublishEventUnlock 

func (b *EventBus) PublishEventUnlock(data EventDataRoundState) error

func (*EventBus) PublishEventValidatorSetUpdates 

func (b *EventBus) PublishEventValidatorSetUpdates(data EventDataValidatorSetUpdates) error

func (*EventBus) PublishEventVote 

func (b *EventBus) PublishEventVote(data EventDataVote) error

func (*EventBus) SetLogger 

func (b *EventBus) SetLogger(l log.Logger)

func (*EventBus) Subscribe 

func (b *EventBus) Subscribe(ctx context.Context, subscriber string, query tmpubsub.Query, out chan<- interface{}) error

func (*EventBus) Unsubscribe 

func (b *EventBus) Unsubscribe(ctx context.Context, subscriber string, query tmpubsub.Query) error

func (*EventBus) UnsubscribeAll 

func (b *EventBus) UnsubscribeAll(ctx context.Context, subscriber string) error

type EventBusSubscriber 

type EventBusSubscriber interface {
	Subscribe(ctx context.Context, subscriber string, query tmpubsub.Query, out chan<- interface{}) error
	Unsubscribe(ctx context.Context, subscriber string, query tmpubsub.Query) error
	UnsubscribeAll(ctx context.Context, subscriber string) error
}

type EventDataNewBlock 

type EventDataNewBlock struct {
	Block *Block `json:"block"`
}

type EventDataNewBlockHeader 

type EventDataNewBlockHeader struct {
	Header Header `json:"header"`
}

light weight event for benchmarking

type EventDataProposalHeartbeat added in v0.10.3 

type EventDataProposalHeartbeat struct {
	Heartbeat *Heartbeat
}

type EventDataRoundState 

type EventDataRoundState struct {
	Height int64  `json:"height"`
	Round  int    `json:"round"`
	Step   string `json:"step"`

	// private, not exposed to websockets
	RoundState interface{} `json:"-"`
}

NOTE: This goes into the replay WAL

type EventDataString 

type EventDataString string

type EventDataTx 

type EventDataTx struct {
	TxResult
}

All txs fire EventDataTx

type EventDataValidatorSetUpdates 

type EventDataValidatorSetUpdates struct {
	ValidatorUpdates []*Validator `json:"validator_updates"`
}

type EventDataVote 

type EventDataVote struct {
	Vote *Vote
}

type Evidence 

type Evidence interface {
	Height() int64                                     // height of the equivocation
	Address() []byte                                   // address of the equivocating validator
	Hash() []byte                                      // hash of the evidence
	Verify(chainID string, pubKey crypto.PubKey) error // verify the evidence
	Equal(Evidence) bool                               // check equality of evidence

	String() string
}

Evidence represents any provable malicious activity by a validator

type EvidenceData 

type EvidenceData struct {
	Evidence EvidenceList `json:"evidence"`
	// contains filtered or unexported fields
}

EvidenceData contains any evidence of malicious wrong-doing by validators

func (*EvidenceData) Hash 

func (data *EvidenceData) Hash() cmn.HexBytes

Hash returns the hash of the data.

func (*EvidenceData) StringIndented 

func (data *EvidenceData) StringIndented(indent string) string

StringIndented returns a string representation of the evidence.

type EvidenceList 

type EvidenceList []Evidence

EvidenceList is a list of Evidence. Evidences is not a word.

func (EvidenceList) Has 

func (evl EvidenceList) Has(evidence Evidence) bool

Has returns true if the evidence is in the EvidenceList.

func (EvidenceList) Hash 

func (evl EvidenceList) Hash() []byte

Hash returns the simple merkle root hash of the EvidenceList.

func (EvidenceList) String 

func (evl EvidenceList) String() string

type EvidenceParams 

type EvidenceParams struct {
	MaxAge int64 `json:"max_age"` // only accept new evidence more recent than this
}

EvidenceParams determine how we handle evidence of malfeasance

func DefaultEvidenceParams 

func DefaultEvidenceParams() EvidenceParams

DefaultEvidence Params returns a default EvidenceParams.

type GenesisDoc 

type GenesisDoc struct {
	GenesisTime     time.Time          `json:"genesis_time"`
	ChainID         string             `json:"chain_id"`
	ConsensusParams *ConsensusParams   `json:"consensus_params,omitempty"`
	Validators      []GenesisValidator `json:"validators,omitempty"`
	AppHash         cmn.HexBytes       `json:"app_hash"`
	AppState        json.RawMessage    `json:"app_state,omitempty"`
}

GenesisDoc defines the initial conditions for a tendermint blockchain, in particular its validator set.

func GenesisDocFromFile 

func GenesisDocFromFile(genDocFile string) (*GenesisDoc, error)

GenesisDocFromFile reads JSON data from a file and unmarshalls it into a GenesisDoc.

func GenesisDocFromJSON 

func GenesisDocFromJSON(jsonBlob []byte) (*GenesisDoc, error)

GenesisDocFromJSON unmarshalls JSON data into a GenesisDoc.

func (*GenesisDoc) SaveAs 

func (genDoc *GenesisDoc) SaveAs(file string) error

SaveAs is a utility method for saving GenensisDoc as a JSON file.

func (*GenesisDoc) ValidateAndComplete 

func (genDoc *GenesisDoc) ValidateAndComplete() error

ValidateAndComplete checks that all necessary fields are present and fills in defaults for optional fields left empty

func (*GenesisDoc) ValidatorHash 

func (genDoc *GenesisDoc) ValidatorHash() []byte

ValidatorHash returns the hash of the validator set contained in the GenesisDoc

type GenesisValidator 

type GenesisValidator struct {
	PubKey crypto.PubKey `json:"pub_key"`
	Power  int64         `json:"power"`
	Name   string        `json:"name"`
}

GenesisValidator is an initial validator. 

type Header struct {
	// basic block info
	ChainID  string    `json:"chain_id"`
	Height   int64     `json:"height"`
	Time     time.Time `json:"time"`
	NumTxs   int64     `json:"num_txs"`
	TotalTxs int64     `json:"total_txs"`

	// prev block info
	LastBlockID BlockID `json:"last_block_id"`

	// hashes of block data
	LastCommitHash cmn.HexBytes `json:"last_commit_hash"` // commit from validators from the last block
	DataHash       cmn.HexBytes `json:"data_hash"`        // transactions

	// hashes from the app output from the prev block
	ValidatorsHash     cmn.HexBytes `json:"validators_hash"`      // validators for the current block
	NextValidatorsHash cmn.HexBytes `json:"next_validators_hash"` // validators for the next block
	ConsensusHash      cmn.HexBytes `json:"consensus_hash"`       // consensus params for current block
	AppHash            cmn.HexBytes `json:"app_hash"`             // state after txs from the previous block
	LastResultsHash    cmn.HexBytes `json:"last_results_hash"`    // root hash of all results from the txs from the previous block

	// consensus info
	EvidenceHash    cmn.HexBytes `json:"evidence_hash"`    // evidence included in the block
	ProposerAddress Address      `json:"proposer_address"` // original proposer of the block
}

Header defines the structure of a Tendermint block header TODO: limit header size NOTE: changes to the Header should be duplicated in the abci Header and in /docs/spec/blockchain/blockchain.md

func (*Header) Hash 

func (h *Header) Hash() cmn.HexBytes

Hash returns the hash of the header. Returns nil if ValidatorHash is missing, since a Header is not valid unless there is a ValidatorsHash (corresponding to the validator set).

func (*Header) StringIndented 

func (h *Header) StringIndented(indent string) string

StringIndented returns a string representation of the header

type Heartbeat added in v0.10.3 

type Heartbeat struct {
	ValidatorAddress Address `json:"validator_address"`
	ValidatorIndex   int     `json:"validator_index"`
	Height           int64   `json:"height"`
	Round            int     `json:"round"`
	Sequence         int     `json:"sequence"`
	Signature        []byte  `json:"signature"`
}

Heartbeat is a simple vote-like structure so validators can alert others that they are alive and waiting for transactions. Note: We aren't adding ",omitempty" to Heartbeat's json field tags because we always want the JSON representation to be in its canonical form.

func (*Heartbeat) Copy added in v0.10.3 

func (heartbeat *Heartbeat) Copy() *Heartbeat

Copy makes a copy of the Heartbeat.

func (*Heartbeat) SignBytes added in v0.17.0 

func (heartbeat *Heartbeat) SignBytes(chainID string) []byte

SignBytes returns the Heartbeat bytes for signing. It panics if the Heartbeat is nil.

func (*Heartbeat) String added in v0.10.3 

func (heartbeat *Heartbeat) String() string

String returns a string representation of the Heartbeat.

type MockBadEvidence 

type MockBadEvidence struct {
	MockGoodEvidence
}

UNSTABLE

func (MockBadEvidence) Equal 

func (e MockBadEvidence) Equal(ev Evidence) bool

func (MockBadEvidence) String 

func (e MockBadEvidence) String() string

func (MockBadEvidence) Verify 

func (e MockBadEvidence) Verify(chainID string, pubKey crypto.PubKey) error

type MockGoodEvidence 

type MockGoodEvidence struct {
	Height_  int64
	Address_ []byte
}

UNSTABLE

func NewMockGoodEvidence 

func NewMockGoodEvidence(height int64, idx int, address []byte) MockGoodEvidence

UNSTABLE

func (MockGoodEvidence) Address 

func (e MockGoodEvidence) Address() []byte

func (MockGoodEvidence) Equal 

func (e MockGoodEvidence) Equal(ev Evidence) bool

func (MockGoodEvidence) Hash 

func (e MockGoodEvidence) Hash() []byte

func (MockGoodEvidence) Height 

func (e MockGoodEvidence) Height() int64

func (MockGoodEvidence) String 

func (e MockGoodEvidence) String() string

func (MockGoodEvidence) Verify 

func (e MockGoodEvidence) Verify(chainID string, pubKey crypto.PubKey) error

type MockPV 

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

MockPV implements PrivValidator without any safety or persistence. Only use it for testing.

func NewMockPV 

func NewMockPV() *MockPV

func (*MockPV) DisableChecks 

func (pv *MockPV) DisableChecks()

XXX: Implement.

func (*MockPV) GetAddress added in v0.19.0 

func (pv *MockPV) GetAddress() Address

Implements PrivValidator.

func (*MockPV) GetPubKey 

func (pv *MockPV) GetPubKey() crypto.PubKey

Implements PrivValidator.

func (*MockPV) SignHeartbeat added in v0.19.0 

func (pv *MockPV) SignHeartbeat(chainID string, heartbeat *Heartbeat) error

signHeartbeat signs the heartbeat without any checking.

func (*MockPV) SignProposal 

func (pv *MockPV) SignProposal(chainID string, proposal *Proposal) error

Implements PrivValidator.

func (*MockPV) SignVote 

func (pv *MockPV) SignVote(chainID string, vote *Vote) error

Implements PrivValidator.

func (*MockPV) String 

func (pv *MockPV) String() string

String returns a string representation of the MockPV.

type NopEventBus 

type NopEventBus struct{}

func (NopEventBus) PublishEventCompleteProposal 

func (NopEventBus) PublishEventCompleteProposal(data EventDataRoundState) error

func (NopEventBus) PublishEventLock 

func (NopEventBus) PublishEventLock(data EventDataRoundState) error

func (NopEventBus) PublishEventNewBlock 

func (NopEventBus) PublishEventNewBlock(data EventDataNewBlock) error

func (NopEventBus) PublishEventNewBlockHeader 

func (NopEventBus) PublishEventNewBlockHeader(data EventDataNewBlockHeader) error

func (NopEventBus) PublishEventNewRound 

func (NopEventBus) PublishEventNewRound(data EventDataRoundState) error

func (NopEventBus) PublishEventNewRoundStep 

func (NopEventBus) PublishEventNewRoundStep(data EventDataRoundState) error

func (NopEventBus) PublishEventPolka 

func (NopEventBus) PublishEventPolka(data EventDataRoundState) error

func (NopEventBus) PublishEventRelock 

func (NopEventBus) PublishEventRelock(data EventDataRoundState) error

func (NopEventBus) PublishEventTimeoutPropose 

func (NopEventBus) PublishEventTimeoutPropose(data EventDataRoundState) error

func (NopEventBus) PublishEventTimeoutWait 

func (NopEventBus) PublishEventTimeoutWait(data EventDataRoundState) error

func (NopEventBus) PublishEventTx 

func (NopEventBus) PublishEventTx(data EventDataTx) error

func (NopEventBus) PublishEventUnlock 

func (NopEventBus) PublishEventUnlock(data EventDataRoundState) error

func (NopEventBus) PublishEventValidatorSetUpdates 

func (NopEventBus) PublishEventValidatorSetUpdates(data EventDataValidatorSetUpdates) error

func (NopEventBus) PublishEventVote 

func (NopEventBus) PublishEventVote(data EventDataVote) error

func (NopEventBus) Subscribe 

func (NopEventBus) Subscribe(ctx context.Context, subscriber string, query tmpubsub.Query, out chan<- interface{}) error

func (NopEventBus) Unsubscribe 

func (NopEventBus) Unsubscribe(ctx context.Context, subscriber string, query tmpubsub.Query) error

func (NopEventBus) UnsubscribeAll 

func (NopEventBus) UnsubscribeAll(ctx context.Context, subscriber string) error

type P2PID 

type P2PID string

UNSTABLE XXX: duplicate of p2p.ID to avoid dependence between packages. Perhaps we can have a minimal types package containing this (and other things?) that both `types` and `p2p` import ?

type Part 

type Part struct {
	Index int                `json:"index"`
	Bytes cmn.HexBytes       `json:"bytes"`
	Proof merkle.SimpleProof `json:"proof"`
	// contains filtered or unexported fields
}

func (*Part) Hash added in v0.7.0 

func (part *Part) Hash() []byte

func (*Part) String 

func (part *Part) String() string

func (*Part) StringIndented 

func (part *Part) StringIndented(indent string) string

type PartSet 

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

func NewPartSetFromData 

func NewPartSetFromData(data []byte, partSize int) *PartSet

Returns an immutable, full PartSet from the data bytes. The data bytes are split into "partSize" chunks, and merkle tree computed.

func NewPartSetFromHeader 

func NewPartSetFromHeader(header PartSetHeader) *PartSet

Returns an empty PartSet ready to be populated.

func (*PartSet) AddPart 

func (ps *PartSet) AddPart(part *Part) (bool, error)

func (*PartSet) BitArray 

func (ps *PartSet) BitArray() *cmn.BitArray

func (*PartSet) Count 

func (ps *PartSet) Count() int

func (*PartSet) GetPart 

func (ps *PartSet) GetPart(index int) *Part

func (*PartSet) GetReader 

func (ps *PartSet) GetReader() io.Reader

func (*PartSet) HasHeader 

func (ps *PartSet) HasHeader(header PartSetHeader) bool

func (*PartSet) Hash 

func (ps *PartSet) Hash() []byte

func (*PartSet) HashesTo 

func (ps *PartSet) HashesTo(hash []byte) bool

func (*PartSet) Header 

func (ps *PartSet) Header() PartSetHeader

func (*PartSet) IsComplete 

func (ps *PartSet) IsComplete() bool

func (*PartSet) MarshalJSON 

func (ps *PartSet) MarshalJSON() ([]byte, error)

func (*PartSet) StringShort 

func (ps *PartSet) StringShort() string

func (*PartSet) Total 

func (ps *PartSet) Total() int

type PartSetHeader 

type PartSetHeader struct {
	Total int          `json:"total"`
	Hash  cmn.HexBytes `json:"hash"`
}

func (PartSetHeader) Equals 

func (psh PartSetHeader) Equals(other PartSetHeader) bool

func (PartSetHeader) IsZero 

func (psh PartSetHeader) IsZero() bool

func (PartSetHeader) String 

func (psh PartSetHeader) String() string

type PartSetReader 

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

func NewPartSetReader 

func NewPartSetReader(parts []*Part) *PartSetReader

func (*PartSetReader) Read 

func (psr *PartSetReader) Read(p []byte) (n int, err error)

type PrivValidator 

type PrivValidator interface {
	GetAddress() Address // redundant since .PubKey().Address()
	GetPubKey() crypto.PubKey

	SignVote(chainID string, vote *Vote) error
	SignProposal(chainID string, proposal *Proposal) error
	SignHeartbeat(chainID string, heartbeat *Heartbeat) error
}

PrivValidator defines the functionality of a local Tendermint validator that signs votes, proposals, and heartbeats, and never double signs.

type PrivValidatorsByAddress 

type PrivValidatorsByAddress []PrivValidator

func (PrivValidatorsByAddress) Len 

func (pvs PrivValidatorsByAddress) Len() int

func (PrivValidatorsByAddress) Less 

func (pvs PrivValidatorsByAddress) Less(i, j int) bool

func (PrivValidatorsByAddress) Swap 

func (pvs PrivValidatorsByAddress) Swap(i, j int)

type Proposal 

type Proposal struct {
	Height           int64         `json:"height"`
	Round            int           `json:"round"`
	Timestamp        time.Time     `json:"timestamp"`
	BlockPartsHeader PartSetHeader `json:"block_parts_header"`
	POLRound         int           `json:"pol_round"`    // -1 if null.
	POLBlockID       BlockID       `json:"pol_block_id"` // zero if null.
	Signature        []byte        `json:"signature"`
}

Proposal defines a block proposal for the consensus. It refers to the block only by its PartSetHeader. It must be signed by the correct proposer for the given Height/Round to be considered valid. It may depend on votes from a previous round, a so-called Proof-of-Lock (POL) round, as noted in the POLRound and POLBlockID.

func NewProposal 

func NewProposal(height int64, round int, blockPartsHeader PartSetHeader, polRound int, polBlockID BlockID) *Proposal

NewProposal returns a new Proposal. If there is no POLRound, polRound should be -1.

func (*Proposal) SignBytes 

func (p *Proposal) SignBytes(chainID string) []byte

SignBytes returns the Proposal bytes for signing

func (*Proposal) String 

func (p *Proposal) String() string

String returns a string representation of the Proposal.

type Signable 

type Signable interface {
	SignBytes(chainID string) []byte
}

Signable is an interface for all signable things. It typically removes signatures before serializing. SignBytes returns the bytes to be signed NOTE: chainIDs are part of the SignBytes but not necessarily the object themselves. NOTE: Expected to panic if there is an error marshalling.

type SignedHeader 

type SignedHeader struct {
	*Header `json:"header"`
	Commit  *Commit `json:"commit"`
}

SignedHeader is a header along with the commits that prove it.

func (SignedHeader) String 

func (sh SignedHeader) String() string

func (SignedHeader) StringIndented 

func (sh SignedHeader) StringIndented(indent string) string

StringIndented returns a string representation of the SignedHeader.

func (SignedHeader) ValidateBasic 

func (sh SignedHeader) ValidateBasic(chainID string) error

ValidateBasic does basic consistency checks and makes sure the header and commit are consistent.

NOTE: This does not actually check the cryptographic signatures. Make sure to use a Verifier to validate the signatures actually provide a significantly strong proof for this header's validity.

type TMEventData 

type TMEventData interface {
}

TMEventData implements events.EventData.

type Tx 

type Tx []byte

Tx is an arbitrary byte array. NOTE: Tx has no types at this level, so when wire encoded it's just length-prefixed. Might we want types here ?

func (Tx) Hash 

func (tx Tx) Hash() []byte

Hash computes the TMHASH hash of the wire encoded transaction.

func (Tx) String 

func (tx Tx) String() string

String returns the hex-encoded transaction as a string.

type TxEventPublisher 

type TxEventPublisher interface {
	PublishEventTx(EventDataTx) error
}

type TxProof 

type TxProof struct {
	Index, Total int
	RootHash     cmn.HexBytes
	Data         Tx
	Proof        merkle.SimpleProof
}

TxProof represents a Merkle proof of the presence of a transaction in the Merkle tree.

func (TxProof) LeafHash added in v0.9.1 

func (tp TxProof) LeafHash() []byte

LeadHash returns the hash of the this proof refers to.

func (TxProof) Validate 

func (tp TxProof) Validate(dataHash []byte) error

Validate verifies the proof. It returns nil if the RootHash matches the dataHash argument, and if the proof is internally consistent. Otherwise, it returns a sensible error.

type TxResult 

type TxResult struct {
	Height int64                  `json:"height"`
	Index  uint32                 `json:"index"`
	Tx     Tx                     `json:"tx"`
	Result abci.ResponseDeliverTx `json:"result"`
}

TxResult contains results of executing the transaction.

One usage is indexing transaction results.

type TxSize added in v0.15.0 

type TxSize struct {
	MaxBytes int   `json:"max_bytes"`
	MaxGas   int64 `json:"max_gas"`
}

TxSize contain limits on the tx size.

func DefaultTxSize added in v0.15.0 

func DefaultTxSize() TxSize

DefaultTxSize returns a default TxSize.

type Txs 

type Txs []Tx

Txs is a slice of Tx.

func (Txs) Hash 

func (txs Txs) Hash() []byte

Hash returns the simple Merkle root hash of the transactions.

func (Txs) Index 

func (txs Txs) Index(tx Tx) int

Index returns the index of this transaction in the list, or -1 if not found

func (Txs) IndexByHash 

func (txs Txs) IndexByHash(hash []byte) int

IndexByHash returns the index of this transaction hash in the list, or -1 if not found

func (Txs) Proof 

func (txs Txs) Proof(i int) TxProof

Proof returns a simple merkle proof for this node. Panics if i < 0 or i >= len(txs) TODO: optimize this!

type Validator 

type Validator struct {
	Address     Address       `json:"address"`
	PubKey      crypto.PubKey `json:"pub_key"`
	VotingPower int64         `json:"voting_power"`

	Accum int64 `json:"accum"`
}

Volatile state for each Validator NOTE: The Accum is not included in Validator.Hash(); make sure to update that method if changes are made here

func NewValidator 

func NewValidator(pubKey crypto.PubKey, votingPower int64) *Validator

func (*Validator) CompareAccum added in v0.7.0 

func (v *Validator) CompareAccum(other *Validator) *Validator

Returns the one with higher Accum.

func (*Validator) Copy 

func (v *Validator) Copy() *Validator

Creates a new copy of the validator so we can mutate accum. Panics if the validator is nil.

func (*Validator) Hash added in v0.7.0 

func (v *Validator) Hash() []byte

Hash computes the unique ID of a validator with a given voting power. It excludes the Accum value, which changes with every round.

func (*Validator) String 

func (v *Validator) String() string

type ValidatorSet 

type ValidatorSet struct {
	// NOTE: persisted via reflect, must be exported.
	Validators []*Validator `json:"validators"`
	Proposer   *Validator   `json:"proposer"`
	// contains filtered or unexported fields
}

ValidatorSet represent a set of *Validator at a given height. The validators can be fetched by address or index. The index is in order of .Address, so the indices are fixed for all rounds of a given blockchain height. On the other hand, the .AccumPower of each validator and the designated .GetProposer() of a set changes every round, upon calling .IncrementAccum(). NOTE: Not goroutine-safe. NOTE: All get/set to validators should copy the value for safety.

func NewValidatorSet 

func NewValidatorSet(valz []*Validator) *ValidatorSet

func (*ValidatorSet) Add added in v0.7.0 

func (vals *ValidatorSet) Add(val *Validator) (added bool)

Add adds val to the validator set and returns true. It returns false if val is already in the set.

func (*ValidatorSet) Copy 

func (vals *ValidatorSet) Copy() *ValidatorSet

Copy each validator into a new ValidatorSet

func (*ValidatorSet) CopyIncrementAccum added in v0.24.0 

func (vals *ValidatorSet) CopyIncrementAccum(times int) *ValidatorSet

Increment Accum and update the proposer on a copy, and return it.

func (*ValidatorSet) GetByAddress 

func (vals *ValidatorSet) GetByAddress(address []byte) (index int, val *Validator)

GetByAddress returns an index of the validator with address and validator itself if found. Otherwise, -1 and nil are returned.

func (*ValidatorSet) GetByIndex 

func (vals *ValidatorSet) GetByIndex(index int) (address []byte, val *Validator)

GetByIndex returns the validator's address and validator itself by index. It returns nil values if index is less than 0 or greater or equal to len(ValidatorSet.Validators).

func (*ValidatorSet) GetProposer 

func (vals *ValidatorSet) GetProposer() (proposer *Validator)

GetProposer returns the current proposer. If the validator set is empty, nil is returned.

func (*ValidatorSet) HasAddress 

func (vals *ValidatorSet) HasAddress(address []byte) bool

HasAddress returns true if address given is in the validator set, false - otherwise.

func (*ValidatorSet) Hash 

func (vals *ValidatorSet) Hash() []byte

Hash returns the Merkle root hash build using validators (as leaves) in the set.

func (*ValidatorSet) IncrementAccum added in v0.7.0 

func (vals *ValidatorSet) IncrementAccum(times int)

IncrementAccum increments accum of each validator and updates the proposer. Panics if validator set is empty.

func (*ValidatorSet) IsNilOrEmpty 

func (vals *ValidatorSet) IsNilOrEmpty() bool

Nil or empty validator sets are invalid.

func (*ValidatorSet) Iterate 

func (vals *ValidatorSet) Iterate(fn func(index int, val *Validator) bool)

Iterate will run the given function over the set.

func (*ValidatorSet) Remove added in v0.7.0 

func (vals *ValidatorSet) Remove(address []byte) (val *Validator, removed bool)

Remove deletes the validator with address. It returns the validator removed and true. If returns nil and false if validator is not present in the set.

func (*ValidatorSet) Size 

func (vals *ValidatorSet) Size() int

Size returns the length of the validator set.

func (*ValidatorSet) String 

func (vals *ValidatorSet) String() string

func (*ValidatorSet) StringIndented 

func (vals *ValidatorSet) StringIndented(indent string) string

String

func (*ValidatorSet) TotalVotingPower 

func (vals *ValidatorSet) TotalVotingPower() int64

TotalVotingPower returns the sum of the voting powers of all validators.

func (*ValidatorSet) Update added in v0.7.0 

func (vals *ValidatorSet) Update(val *Validator) (updated bool)

Update updates val and returns true. It returns false if val is not present in the set.

func (*ValidatorSet) VerifyCommit 

func (vals *ValidatorSet) VerifyCommit(chainID string, blockID BlockID, height int64, commit *Commit) error

Verify that +2/3 of the set had signed the given signBytes.

func (*ValidatorSet) VerifyFutureCommit 

func (vals *ValidatorSet) VerifyFutureCommit(newSet *ValidatorSet, chainID string,
	blockID BlockID, height int64, commit *Commit) error

VerifyFutureCommit will check to see if the set would be valid with a different validator set.

vals is the old validator set that we know. Over 2/3 of the power in old signed this block.

In Tendermint, 1/3 of the voting power can halt or fork the chain, but 1/3 can't make arbitrary state transitions. You still need > 2/3 Byzantine to make arbitrary state transitions.

To preserve this property in the light client, we also require > 2/3 of the old vals to sign the future commit at H, that way we preserve the property that if they weren't being truthful about the validator set at H (block hash -> vals hash) or about the app state (block hash -> app hash) we can slash > 2/3. Otherwise, the lite client isn't providing the same security guarantees.

Even if we added a slashing condition that if you sign a block header with the wrong validator set, then we would only need > 1/3 of signatures from the old vals on the new commit, it wouldn't be sufficient because the new vals can be arbitrary and commit some arbitrary app hash.

newSet is the validator set that signed this block. Only votes from new are sufficient for 2/3 majority in the new set as well, for it to be a valid commit.

NOTE: This doesn't check whether the commit is a future commit, because the current height isn't part of the ValidatorSet. Caller must check that the commit height is greater than the height for this validator set.

type ValidatorsByAddress 

type ValidatorsByAddress []*Validator

Sort validators by address

func (ValidatorsByAddress) Len 

func (valz ValidatorsByAddress) Len() int

func (ValidatorsByAddress) Less 

func (valz ValidatorsByAddress) Less(i, j int) bool

func (ValidatorsByAddress) Swap 

func (valz ValidatorsByAddress) Swap(i, j int)

type Vote 

type Vote struct {
	ValidatorAddress Address   `json:"validator_address"`
	ValidatorIndex   int       `json:"validator_index"`
	Height           int64     `json:"height"`
	Round            int       `json:"round"`
	Timestamp        time.Time `json:"timestamp"`
	Type             byte      `json:"type"`
	BlockID          BlockID   `json:"block_id"` // zero if vote is nil.
	Signature        []byte    `json:"signature"`
}

Represents a prevote, precommit, or commit vote from validators for consensus.

func (*Vote) Copy 

func (vote *Vote) Copy() *Vote

func (*Vote) SignBytes 

func (vote *Vote) SignBytes(chainID string) []byte

func (*Vote) String 

func (vote *Vote) String() string

func (*Vote) Verify 

func (vote *Vote) Verify(chainID string, pubKey crypto.PubKey) error

type VoteSet 

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

VoteSet helps collect signatures from validators at each height+round for a predefined vote type.

We need VoteSet to be able to keep track of conflicting votes when validators double-sign. Yet, we can't keep track of *all* the votes seen, as that could be a DoS attack vector.

There are two storage areas for votes. 1. voteSet.votes 2. voteSet.votesByBlock

`.votes` is the "canonical" list of votes. It always has at least one vote, if a vote from a validator had been seen at all. Usually it keeps track of the first vote seen, but when a 2/3 majority is found, votes for that get priority and are copied over from `.votesByBlock`.

`.votesByBlock` keeps track of a list of votes for a particular block. There are two ways a &blockVotes{} gets created in `.votesByBlock`. 1. the first vote seen by a validator was for the particular block. 2. a peer claims to have seen 2/3 majority for the particular block.

Since the first vote from a validator will always get added in `.votesByBlock` , all votes in `.votes` will have a corresponding entry in `.votesByBlock`.

When a &blockVotes{} in `.votesByBlock` reaches a 2/3 majority quorum, its votes are copied into `.votes`.

All this is memory bounded because conflicting votes only get added if a peer told us to track that block, each peer only gets to tell us 1 such block, and, there's only a limited number of peers.

NOTE: Assumes that the sum total of voting power does not exceed MaxUInt64.

func NewVoteSet 

func NewVoteSet(chainID string, height int64, round int, type_ byte, valSet *ValidatorSet) *VoteSet

Constructs a new VoteSet struct used to accumulate votes for given height/round.

func (*VoteSet) AddVote 

func (voteSet *VoteSet) AddVote(vote *Vote) (added bool, err error)

Returns added=true if vote is valid and new. Otherwise returns err=ErrVote[ 

UnexpectedStep | InvalidIndex | InvalidAddress |
InvalidSignature | InvalidBlockHash | ConflictingVotes ]

Duplicate votes return added=false, err=nil. Conflicting votes return added=*, err=ErrVoteConflictingVotes. NOTE: vote should not be mutated after adding. NOTE: VoteSet must not be nil NOTE: Vote must not be nil

func (*VoteSet) BitArray 

func (voteSet *VoteSet) BitArray() *cmn.BitArray

func (*VoteSet) BitArrayByBlockID 

func (voteSet *VoteSet) BitArrayByBlockID(blockID BlockID) *cmn.BitArray

func (*VoteSet) BitArrayString 

func (voteSet *VoteSet) BitArrayString() string

Return the bit-array of votes including the fraction of power that has voted like: "BA{29:xx__x__x_x___x__x_______xxx__} 856/1304 = 0.66"

func (*VoteSet) ChainID 

func (voteSet *VoteSet) ChainID() string

func (*VoteSet) GetByAddress 

func (voteSet *VoteSet) GetByAddress(address []byte) *Vote

func (*VoteSet) GetByIndex 

func (voteSet *VoteSet) GetByIndex(valIndex int) *Vote

NOTE: if validator has conflicting votes, returns "canonical" vote

func (*VoteSet) HasAll 

func (voteSet *VoteSet) HasAll() bool

func (*VoteSet) HasTwoThirdsAny 

func (voteSet *VoteSet) HasTwoThirdsAny() bool

func (*VoteSet) HasTwoThirdsMajority 

func (voteSet *VoteSet) HasTwoThirdsMajority() bool

func (*VoteSet) Height 

func (voteSet *VoteSet) Height() int64

func (*VoteSet) IsCommit 

func (voteSet *VoteSet) IsCommit() bool

func (*VoteSet) MakeCommit 

func (voteSet *VoteSet) MakeCommit() *Commit

func (*VoteSet) MarshalJSON 

func (voteSet *VoteSet) MarshalJSON() ([]byte, error)

Marshal the VoteSet to JSON. Same as String(), just in JSON, and without the height/round/type_ (since its already included in the votes).

func (*VoteSet) Round 

func (voteSet *VoteSet) Round() int

func (*VoteSet) SetPeerMaj23 

func (voteSet *VoteSet) SetPeerMaj23(peerID P2PID, blockID BlockID) error

If a peer claims that it has 2/3 majority for given blockKey, call this. NOTE: if there are too many peers, or too much peer churn, this can cause memory issues. TODO: implement ability to remove peers too NOTE: VoteSet must not be nil

func (*VoteSet) Size 

func (voteSet *VoteSet) Size() int

func (*VoteSet) String 

func (voteSet *VoteSet) String() string

func (*VoteSet) StringIndented 

func (voteSet *VoteSet) StringIndented(indent string) string

func (*VoteSet) StringShort 

func (voteSet *VoteSet) StringShort() string

func (*VoteSet) TwoThirdsMajority 

func (voteSet *VoteSet) TwoThirdsMajority() (blockID BlockID, ok bool)

If there was a +2/3 majority for blockID, return blockID and true. Else, return the empty BlockID{} and false.

func (*VoteSet) Type 

func (voteSet *VoteSet) Type() byte

func (*VoteSet) VoteStrings 

func (voteSet *VoteSet) VoteStrings() []string

Returns a list of votes compressed to more readable strings.

type VoteSetJSON 

type VoteSetJSON struct {
	Votes         []string          `json:"votes"`
	VotesBitArray string            `json:"votes_bit_array"`
	PeerMaj23s    map[P2PID]BlockID `json:"peer_maj_23s"`
}

More human readable JSON of the vote set NOTE: insufficient for unmarshalling from (compressed votes) TODO: make the peerMaj23s nicer to read (eg just the block hash)

type VoteSetReader 

type VoteSetReader interface {
	Height() int64
	Round() int
	Type() byte
	Size() int
	BitArray() *cmn.BitArray
	GetByIndex(int) *Vote
	IsCommit() bool
}

Common interface between *consensus.VoteSet and types.Commit

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