types

package
Version: v0.0.1 Latest Latest
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Published: Jun 7, 2021 License: Apache-2.0 Imports: 36 Imported by: 0

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Constants

View Source
const (
	// MaxHeaderBytes is a maximum header size.
	MaxHeaderBytes int64 = 626

	// MaxOverheadForBlock - maximum overhead to encode a block (up to
	// MaxBlockSizeBytes in size) not including it's parts except Data.
	// This means it also excludes the overhead for individual transactions.
	//
	// Uvarint length of MaxBlockSizeBytes: 4 bytes
	// 2 fields (2 embedded):               2 bytes
	// Uvarint length of Data.Txs:          4 bytes
	// Data.Txs field:                      1 byte
	MaxOverheadForBlock int64 = 11
)
View Source
const (
	// Block level events for mass consumption by users.
	// These events are triggered from the state package,
	// after a block has been committed.
	// These are also used by the tx indexer for async indexing.
	// All of this data can be fetched through the rpc.
	EventNewBlock            = "NewBlock"
	EventNewBlockHeader      = "NewBlockHeader"
	EventNewEvidence         = "NewEvidence"
	EventTx                  = "Tx"
	EventValidatorSetUpdates = "ValidatorSetUpdates"

	// Internal consensus events.
	// These are used for testing the consensus state machine.
	// They can also be used to build real-time consensus visualizers.
	EventCompleteProposal = "CompleteProposal"
	EventLock             = "Lock"
	EventNewRound         = "NewRound"
	EventNewRoundStep     = "NewRoundStep"
	EventPolka            = "Polka"
	EventRelock           = "Relock"
	EventTimeoutPropose   = "TimeoutPropose"
	EventTimeoutWait      = "TimeoutWait"
	EventUnlock           = "Unlock"
	EventValidBlock       = "ValidBlock"
	EventVote             = "Vote"
)

Reserved event types (alphabetically sorted).

View Source
const (
	// EventTypeKey is a reserved composite key for event name.
	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 (
	// MaxEvidenceBytes is a maximum size of any evidence (including amino overhead).
	MaxEvidenceBytes int64 = 444

	// An invalid field in the header from LunaticValidatorEvidence.
	// Must be a function of the ABCI application state.
	ValidatorsHashField     = "ValidatorsHash"
	NextValidatorsHashField = "NextValidatorsHash"
	ConsensusHashField      = "ConsensusHash"
	AppHashField            = "AppHash"
	LastResultsHashField    = "LastResultsHash"
)
View Source
const (
	// MaxBlockSizeBytes is the maximum permitted size of the blocks.
	MaxBlockSizeBytes = 104857600 // 100MB

	// BlockPartSizeBytes is the size of one block part.
	BlockPartSizeBytes uint32 = 65536 // 64kB

	// MaxBlockPartsCount is the maximum number of block parts.
	MaxBlockPartsCount = (MaxBlockSizeBytes / BlockPartSizeBytes) + 1

	// Restrict the upper bound of the amount of evidence (uses uint16 for safe conversion)
	MaxEvidencePerBlock = 65535
)
View Source
const (
	ABCIEvidenceTypeDuplicateVote = "duplicate/vote"
	ABCIEvidenceTypeLunatic       = "lunatic"
	ABCIEvidenceTypeAmnesia       = "amnesia"
)
View Source
const (
	// MaxTotalVotingPower - the maximum allowed total voting power.
	// It needs to be sufficiently small to, in all cases:
	// 1. prevent clipping in incrementProposerPriority()
	// 2. let (diff+diffMax-1) not overflow in IncrementProposerPriority()
	// (Proof of 1 is tricky, left to the reader).
	// It could be higher, but this is sufficiently large for our purposes,
	// and leaves room for defensive purposes.
	MaxTotalVotingPower = int64(math.MaxInt64) / 8

	// PriorityWindowSizeFactor - is a constant that when multiplied with the
	// total voting power gives the maximum allowed distance between validator
	// priorities.
	PriorityWindowSizeFactor = 2
)
View Source
const (
	ABCIPubKeyTypeEd25519 = "ed25519"
)
View Source
const (
	// MaxChainIDLen is a maximum length of the chain ID.
	MaxChainIDLen = 50
)
View Source
const (
	// MaxVoteBytes is a maximum vote size (including amino overhead).
	MaxVoteBytes int64 = 209
)
View Source
const (
	// MaxVotesCount is the maximum number of votes in a set. Used in ValidateBasic funcs for
	// protection against DOS attacks. Note this implies a corresponding equal limit to
	// the number of validators.
	MaxVotesCount = 10000
)
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)
	EventQueryNewEvidence         = QueryForEvent(EventNewEvidence)
	EventQueryNewRound            = QueryForEvent(EventNewRound)
	EventQueryNewRoundStep        = QueryForEvent(EventNewRoundStep)
	EventQueryPolka               = QueryForEvent(EventPolka)
	EventQueryRelock              = QueryForEvent(EventRelock)
	EventQueryTimeoutPropose      = QueryForEvent(EventTimeoutPropose)
	EventQueryTimeoutWait         = QueryForEvent(EventTimeoutWait)
	EventQueryTx                  = QueryForEvent(EventTx)
	EventQueryUnlock              = QueryForEvent(EventUnlock)
	EventQueryValidatorSetUpdates = QueryForEvent(EventValidatorSetUpdates)
	EventQueryValidBlock          = QueryForEvent(EventValidBlock)
	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 ABCIPubKeyTypesToNames = map[string]string{
	ABCIPubKeyTypeEd25519: ed25519.PubKeyName,
}
View Source
var ErrTotalVotingPowerOverflow = fmt.Errorf("total voting power of resulting valset exceeds max %d",
	MaxTotalVotingPower)

ErrTotalVotingPowerOverflow is returned if the total voting power of the resulting validator set exceeds MaxTotalVotingPower.

View Source
var ErroringMockPVErr = errors.New("erroringMockPV always returns an error")
View Source
var (
	// MaxSignatureSize is a maximum allowed signature size for the Proposal
	// and Vote.
	// XXX: secp256k1 does not have Size nor MaxSize defined.
	MaxSignatureSize = tmmath.MaxInt(ed25519.SignatureSize, 64)
)
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

CanonicalTime can be used to stringify time in a canonical way.

func CanonicalizeBlockID

func CanonicalizeBlockID(bid tmproto.BlockID) *tmproto.CanonicalBlockID

func CanonicalizePartSetHeader

func CanonicalizePartSetHeader(psh tmproto.PartSetHeader) tmproto.CanonicalPartSetHeader

CanonicalizeVote transforms the given PartSetHeader to a CanonicalPartSetHeader.

func CanonicalizeProposal

func CanonicalizeProposal(chainID string, proposal *tmproto.Proposal) tmproto.CanonicalProposal

CanonicalizeVote transforms the given Proposal to a CanonicalProposal.

func CanonicalizeVote

func CanonicalizeVote(chainID string, vote *tmproto.Vote) tmproto.CanonicalVote

CanonicalizeVote transforms the given Vote to a CanonicalVote, which does not contain ValidatorIndex and ValidatorAddress fields.

func DefaultBlockParams

func DefaultBlockParams() tmproto.BlockParams

DefaultBlockParams returns a default BlockParams.

func DefaultConsensusParams

func DefaultConsensusParams() *tmproto.ConsensusParams

DefaultConsensusParams returns a default ConsensusParams.

func DefaultEvidenceParams

func DefaultEvidenceParams() tmproto.EvidenceParams

DefaultEvidenceParams returns a default EvidenceParams.

func DefaultValidatorParams

func DefaultValidatorParams() tmproto.ValidatorParams

DefaultValidatorParams returns a default ValidatorParams, which allows only ed25519 pubkeys.

func DefaultVersionParams

func DefaultVersionParams() tmproto.VersionParams

func EventQueryTxFor

func EventQueryTxFor(tx Tx) tmpubsub.Query

func EvidenceToProto

func EvidenceToProto(evidence Evidence) (*tmproto.Evidence, error)

func HashConsensusParams

func HashConsensusParams(params tmproto.ConsensusParams) []byte

Hash returns a hash of a subset of the parameters to store in the block header. Only the Block.MaxBytes and Block.MaxGas are included in the hash. This allows the ConsensusParams to evolve more without breaking the block protocol. No need for a Merkle tree here, just a small struct to hash.

func IsErrNotEnoughVotingPowerSigned

func IsErrNotEnoughVotingPowerSigned(err error) bool

IsErrNotEnoughVotingPowerSigned returns true if err is ErrNotEnoughVotingPowerSigned.

func IsValidPubkeyType

func IsValidPubkeyType(params tmproto.ValidatorParams, pubkeyType string) bool

func IsVoteTypeValid

func IsVoteTypeValid(t tmproto.SignedMsgType) bool

IsVoteTypeValid returns true if t is a valid vote type.

func MaxDataBytes

func MaxDataBytes(maxBytes int64, valsCount, evidenceCount int) int64

MaxDataBytes returns the maximum size of block's data.

XXX: Panics on negative result.

func MaxDataBytesUnknownEvidence

func MaxDataBytesUnknownEvidence(maxBytes int64, valsCount int, maxNumEvidence uint32) int64

MaxDataBytesUnknownEvidence returns the maximum size of block's data when evidence count is unknown. MaxEvidencePerBlock will be used for the size of evidence.

XXX: Panics on negative result.

func ProposalSignBytes

func ProposalSignBytes(chainID string, p *tmproto.Proposal) []byte

ProposalSignBytes returns the proto-encoding of the canonicalized Proposal, for signing.

Panics if the marshaling fails.

See CanonicalizeProposal

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 (size: +numValidators+), where each validator has a voting power of +votingPower+.

EXPOSED FOR TESTING.

func UpdateConsensusParams

func UpdateConsensusParams(params tmproto.ConsensusParams, params2 *abci.ConsensusParams) tmproto.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 ValidateConsensusParams

func ValidateConsensusParams(params tmproto.ConsensusParams) error

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

func ValidateHash

func ValidateHash(h []byte) error

ValidateHash returns an error if the hash is not empty, but its size != tmhash.Size.

func ValidateTime

func ValidateTime(t time.Time) error

ValidateTime does a basic time validation ensuring time does not drift too much: +/- one year. TODO: reduce this to eg 1 day NOTE: DO NOT USE in ValidateBasic methods in this package. This function can only be used for real time validation, like on proposals and votes in the consensus. If consensus is stuck, and rounds increase for more than a day, having only a 1-day band here could break things... Can't use for validating blocks because we may be syncing years worth of history.

func ValidatorListString

func ValidatorListString(vals []*Validator) string

ValidatorListString returns a prettified validator list for logging purposes.

func VoteSignBytes

func VoteSignBytes(chainID string, vote *tmproto.Vote) []byte

VoteSignBytes returns the proto-encoding of the canonicalized Vote, for signing.

Panics if the marshaling fails.

See CanonicalizeVote

Types

type ABCIResults

type ABCIResults []*abci.ResponseDeliverTx

ABCIResults wraps the deliver tx results to return a proof.

func NewResults

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

NewResults strips non-deterministic fields from ResponseDeliverTx responses and returns ABCIResults.

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.Proof

ProveResult returns a merkle proof of one result from the set

type Address

type Address = crypto.Address

Address is hex bytes.

type AmnesiaEvidence

type AmnesiaEvidence struct {
	*PotentialAmnesiaEvidence
	Polc *ProofOfLockChange
}

AmnesiaEvidence is the progression of PotentialAmnesiaEvidence and is used to prove an infringement of the Tendermint consensus when a validator incorrectly sends a vote in a later round without correctly changing the lock

func AmnesiaEvidenceFromProto

func AmnesiaEvidenceFromProto(pb *tmproto.AmnesiaEvidence) (*AmnesiaEvidence, error)

func (*AmnesiaEvidence) Bytes

func (e *AmnesiaEvidence) Bytes() []byte

func (*AmnesiaEvidence) Equal

func (e *AmnesiaEvidence) Equal(ev Evidence) bool

Note: Amnesia evidence with or without a polc are considered the same

func (*AmnesiaEvidence) String

func (e *AmnesiaEvidence) String() string

func (*AmnesiaEvidence) ToProto

func (e *AmnesiaEvidence) ToProto() *tmproto.AmnesiaEvidence

func (*AmnesiaEvidence) ValidateBasic

func (e *AmnesiaEvidence) ValidateBasic() error

func (*AmnesiaEvidence) ViolatedConsensus

func (e *AmnesiaEvidence) ViolatedConsensus() (bool, string)

ViolatedConsensus assess on the basis of the AmnesiaEvidence whether the validator has violated the Tendermint consensus. Evidence must be validated first (see ValidateBasic). We are only interested in proving that the latter of the votes in terms of time was correctly done.

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.

func BlockFromProto

func BlockFromProto(bp *tmproto.Block) (*Block, error)

FromProto sets a protobuf Block to the given pointer. It returns an error if the block is invalid.

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() tmbytes.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 uint32) *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

See StringIndented.

func (*Block) StringIndented

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

StringIndented returns an indented String.

Header Data Evidence LastCommit Hash

func (*Block) StringShort

func (b *Block) StringShort() string

StringShort returns a shortened string representation of the block.

func (*Block) ToProto

func (b *Block) ToProto() (*tmproto.Block, error)

ToProto converts Block to protobuf

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. Further validation is done using state#ValidateBlock.

type BlockEventPublisher

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

BlockEventPublisher publishes all block related events

type BlockID

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

BlockID

func BlockIDFromProto

func BlockIDFromProto(bID *tmproto.BlockID) (*BlockID, error)

FromProto sets a protobuf BlockID to the given pointer. It returns an error if the block id is invalid.

func (BlockID) Equals

func (blockID BlockID) Equals(other BlockID) bool

Equals returns true if the BlockID matches the given BlockID

func (BlockID) IsComplete

func (blockID BlockID) IsComplete() bool

IsComplete returns true if this is a valid BlockID of a non-nil block.

func (BlockID) IsZero

func (blockID BlockID) IsZero() bool

IsZero returns true if this is the BlockID of 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.

1. hash 2. part set header

See PartSetHeader#String

func (*BlockID) ToProto

func (blockID *BlockID) ToProto() tmproto.BlockID

ToProto converts BlockID to protobuf

func (BlockID) ValidateBasic

func (blockID BlockID) ValidateBasic() error

ValidateBasic performs basic validation.

type BlockIDFlag

type BlockIDFlag byte

BlockIDFlag indicates which BlockID the signature is for.

const (
	// BlockIDFlagAbsent - no vote was received from a validator.
	BlockIDFlagAbsent BlockIDFlag = iota + 1
	// BlockIDFlagCommit - voted for the Commit.BlockID.
	BlockIDFlagCommit
	// BlockIDFlagNil - voted for nil.
	BlockIDFlagNil
)

type BlockMeta

type BlockMeta struct {
	BlockID   BlockID `json:"block_id"`
	BlockSize int     `json:"block_size"`
	Header    Header  `json:"header"`
	NumTxs    int     `json:"num_txs"`
}

BlockMeta contains meta information.

func BlockMetaFromProto

func BlockMetaFromProto(pb *tmproto.BlockMeta) (*BlockMeta, error)

func NewBlockMeta

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

NewBlockMeta returns a new BlockMeta.

func (*BlockMeta) ToProto

func (bm *BlockMeta) ToProto() *tmproto.BlockMeta

func (*BlockMeta) ValidateBasic

func (bm *BlockMeta) ValidateBasic() error

ValidateBasic performs basic validation.

type Commit

type Commit struct {
	// NOTE: The signatures are in order of address to preserve the bonded
	// ValidatorSet order.
	// Any peer with a block can gossip signatures by index with a peer without
	// recalculating the active ValidatorSet.
	Height     int64       `json:"height"`
	Round      int32       `json:"round"`
	BlockID    BlockID     `json:"block_id"`
	Signatures []CommitSig `json:"signatures"`
	// 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 CommitFromProto

func CommitFromProto(cp *tmproto.Commit) (*Commit, error)

FromProto sets a protobuf Commit to the given pointer. It returns an error if the commit is invalid.

func MakeCommit

func MakeCommit(blockID BlockID, height int64, round int32,
	voteSet *VoteSet, validators []PrivValidator, now time.Time) (*Commit, error)

func NewCommit

func NewCommit(height int64, round int32, blockID BlockID, commitSigs []CommitSig) *Commit

NewCommit returns a new Commit.

func (*Commit) BitArray

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

BitArray returns a BitArray of which validators voted for BlockID or nil in this commit. Implements VoteSetReader.

func (*Commit) GetByIndex

func (commit *Commit) GetByIndex(valIdx int32) *Vote

GetByIndex returns the vote corresponding to a given validator index. Panics if `index >= commit.Size()`. Implements VoteSetReader.

func (*Commit) GetHeight

func (commit *Commit) GetHeight() int64

GetHeight returns height of the commit. Implements VoteSetReader.

func (*Commit) GetRound

func (commit *Commit) GetRound() int32

GetRound returns height of the commit. Implements VoteSetReader.

func (*Commit) GetVote

func (commit *Commit) GetVote(valIdx int32) *Vote

GetVote converts the CommitSig for the given valIdx to a Vote. Returns nil if the precommit at valIdx is nil. Panics if valIdx >= commit.Size().

func (*Commit) Hash

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

Hash returns the hash of the commit

func (*Commit) IsCommit

func (commit *Commit) IsCommit() bool

IsCommit returns true if there is at least one signature. Implements VoteSetReader.

func (*Commit) Size

func (commit *Commit) Size() int

Size returns the number of signatures in the commit. Implements VoteSetReader.

func (*Commit) StringIndented

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

StringIndented returns a string representation of the commit.

func (*Commit) ToProto

func (commit *Commit) ToProto() *tmproto.Commit

ToProto converts Commit to protobuf

func (*Commit) Type

func (commit *Commit) Type() byte

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

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.

func (*Commit) VoteSignBytes

func (commit *Commit) VoteSignBytes(chainID string, valIdx int32) []byte

VoteSignBytes returns the bytes of the Vote corresponding to valIdx for signing.

The only unique part is the Timestamp - all other fields signed over are otherwise the same for all validators.

Panics if valIdx >= commit.Size().

See VoteSignBytes

type CommitSig

type CommitSig struct {
	BlockIDFlag      BlockIDFlag `json:"block_id_flag"`
	ValidatorAddress Address     `json:"validator_address"`
	Timestamp        time.Time   `json:"timestamp"`
	Signature        []byte      `json:"signature"`
}

CommitSig is a part of the Vote included in a Commit.

func NewCommitSigAbsent

func NewCommitSigAbsent() CommitSig

NewCommitSigAbsent returns new CommitSig with BlockIDFlagAbsent. Other fields are all empty.

func NewCommitSigForBlock

func NewCommitSigForBlock(signature []byte, valAddr Address, ts time.Time) CommitSig

NewCommitSigForBlock returns new CommitSig with BlockIDFlagCommit.

func (CommitSig) Absent

func (cs CommitSig) Absent() bool

Absent returns true if CommitSig is absent.

func (CommitSig) BlockID

func (cs CommitSig) BlockID(commitBlockID BlockID) BlockID

BlockID returns the Commit's BlockID if CommitSig indicates signing, otherwise - empty BlockID.

func (CommitSig) ForBlock

func (cs CommitSig) ForBlock() bool

ForBlock returns true if CommitSig is for the block.

func (*CommitSig) FromProto

func (cs *CommitSig) FromProto(csp tmproto.CommitSig) error

FromProto sets a protobuf CommitSig to the given pointer. It returns an error if the CommitSig is invalid.

func (CommitSig) String

func (cs CommitSig) String() string

CommitSig returns a string representation of CommitSig.

1. first 6 bytes of signature 2. first 6 bytes of validator address 3. block ID flag 4. timestamp

func (*CommitSig) ToProto

func (cs *CommitSig) ToProto() *tmproto.CommitSig

ToProto converts CommitSig to protobuf

func (CommitSig) ValidateBasic

func (cs CommitSig) ValidateBasic() error

ValidateBasic performs basic validation.

type CompositeEvidence

type CompositeEvidence interface {
	VerifyComposite(committedHeader *Header, valSet *ValidatorSet) error
	Split(committedHeader *Header, valSet *ValidatorSet) []Evidence
}

type ConflictingHeadersEvidence

type ConflictingHeadersEvidence struct {
	H1 *SignedHeader `json:"h_1"`
	H2 *SignedHeader `json:"h_2"`
}

ConflictingHeadersEvidence is primarily used by the light client when it observes two conflicting headers, both having 1/3+ of the voting power of the currently trusted validator set.

func NewConflictingHeadersEvidence

func NewConflictingHeadersEvidence(h1, h2 *SignedHeader) *ConflictingHeadersEvidence

NewConflictingHeadersEvidence creates a new instance of the respective evidence

func (*ConflictingHeadersEvidence) Address

func (ev *ConflictingHeadersEvidence) Address() []byte

func (*ConflictingHeadersEvidence) Bytes

func (ev *ConflictingHeadersEvidence) Bytes() []byte

func (*ConflictingHeadersEvidence) Equal

func (ev *ConflictingHeadersEvidence) Equal(ev2 Evidence) bool

func (*ConflictingHeadersEvidence) Hash

func (ev *ConflictingHeadersEvidence) Hash() []byte

func (*ConflictingHeadersEvidence) Height

func (ev *ConflictingHeadersEvidence) Height() int64

func (*ConflictingHeadersEvidence) Split

func (ev *ConflictingHeadersEvidence) Split(committedHeader *Header, valSet *ValidatorSet) []Evidence

Split breaks up evidence into smaller chunks of evidence: LunaticValidatorEvidence, DuplicateVoteEvidence and PotentialAmnesiaEvidence.

committedHeader - header at height H1.Height == H2.Height valSet - validator set at height H1.Height == H2.Height

func (*ConflictingHeadersEvidence) String

func (ev *ConflictingHeadersEvidence) String() string

func (*ConflictingHeadersEvidence) Time

Time returns time of the latest header.

func (*ConflictingHeadersEvidence) ToProto

func (*ConflictingHeadersEvidence) ValidateBasic

func (ev *ConflictingHeadersEvidence) ValidateBasic() error

func (*ConflictingHeadersEvidence) Verify

func (ev *ConflictingHeadersEvidence) Verify(chainID string, _ crypto.PubKey) error

func (*ConflictingHeadersEvidence) VerifyComposite

func (ev *ConflictingHeadersEvidence) VerifyComposite(committedHeader *Header, valSet *ValidatorSet) error

VerifyComposite verifies that both headers belong to the same chain, same height and signed by 1/3+ of validators at height H1.Height == H2.Height.

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 DataFromProto

func DataFromProto(dp *tmproto.Data) (Data, error)

DataFromProto takes a protobuf representation of Data & returns the native type.

func (*Data) Hash

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

Hash returns the hash of the data

func (*Data) StringIndented

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

StringIndented returns an indented string representation of the transactions.

func (*Data) ToProto

func (data *Data) ToProto() tmproto.Data

ToProto converts Data to protobuf

type DuplicateVoteEvidence

type DuplicateVoteEvidence struct {
	VoteA *Vote `json:"vote_a"`
	VoteB *Vote `json:"vote_b"`

	Timestamp time.Time `json:"timestamp"`
}

DuplicateVoteEvidence contains evidence a validator signed two conflicting votes.

func NewDuplicateVoteEvidence

func NewDuplicateVoteEvidence(vote1, vote2 *Vote, time time.Time) *DuplicateVoteEvidence

NewDuplicateVoteEvidence creates DuplicateVoteEvidence with right ordering given two conflicting votes. If one of the votes is nil, evidence returned is nil as well

func NewMockDuplicateVoteEvidence

func NewMockDuplicateVoteEvidence(height int64, time time.Time, chainID string) *DuplicateVoteEvidence

assumes the round to be 0 and the validator index to be 0

func NewMockDuplicateVoteEvidenceWithValidator

func NewMockDuplicateVoteEvidenceWithValidator(height int64, time time.Time,
	pv PrivValidator, chainID string) *DuplicateVoteEvidence

func (*DuplicateVoteEvidence) Address

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

Address returns the address of the validator.

func (*DuplicateVoteEvidence) Bytes

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

Hash returns the hash of the evidence.

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) Time

func (dve *DuplicateVoteEvidence) Time() time.Time

Time returns time of the latest vote.

func (*DuplicateVoteEvidence) ToProto

func (*DuplicateVoteEvidence) ValidateBasic

func (dve *DuplicateVoteEvidence) ValidateBasic() error

ValidateBasic performs basic validation.

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 NewErrEvidenceInvalid

func NewErrEvidenceInvalid(ev Evidence, err error) *ErrEvidenceInvalid

NewErrEvidenceInvalid returns a new EvidenceInvalid with the given err.

func (*ErrEvidenceInvalid) Error

func (err *ErrEvidenceInvalid) Error() string

Error returns a string representation of the error.

type ErrEvidenceOverflow

type ErrEvidenceOverflow struct {
	MaxNum int
	GotNum int
}

ErrEvidenceOverflow is for when there is too much evidence in a block.

func NewErrEvidenceOverflow

func NewErrEvidenceOverflow(max, got int) *ErrEvidenceOverflow

NewErrEvidenceOverflow returns a new ErrEvidenceOverflow where got > max.

func (*ErrEvidenceOverflow) Error

func (err *ErrEvidenceOverflow) Error() string

Error returns a string representation of the error.

type ErrInvalidCommitHeight

type ErrInvalidCommitHeight struct {
	Expected int64
	Actual   int64
}

ErrInvalidCommitHeight is returned when we encounter a commit with an unexpected height.

func NewErrInvalidCommitHeight

func NewErrInvalidCommitHeight(expected, actual int64) ErrInvalidCommitHeight

func (ErrInvalidCommitHeight) Error

func (e ErrInvalidCommitHeight) Error() string

type ErrInvalidCommitSignatures

type ErrInvalidCommitSignatures struct {
	Expected int
	Actual   int
}

ErrInvalidCommitSignatures is returned when we encounter a commit where the number of signatures doesn't match the number of validators.

func NewErrInvalidCommitSignatures

func NewErrInvalidCommitSignatures(expected, actual int) ErrInvalidCommitSignatures

func (ErrInvalidCommitSignatures) Error

type ErrNotEnoughVotingPowerSigned

type ErrNotEnoughVotingPowerSigned struct {
	Got    int64
	Needed int64
}

ErrNotEnoughVotingPowerSigned is returned when not enough validators signed a commit.

func (ErrNotEnoughVotingPowerSigned) Error

type ErrVoteConflictingVotes

type ErrVoteConflictingVotes struct {
	VoteA *Vote
	VoteB *Vote
}

func NewConflictingVoteError

func NewConflictingVoteError(vote1, vote2 *Vote) *ErrVoteConflictingVotes

func (*ErrVoteConflictingVotes) Error

func (err *ErrVoteConflictingVotes) Error() string

type ErroringMockPV

type ErroringMockPV struct {
	MockPV
}

func NewErroringMockPV

func NewErroringMockPV() *ErroringMockPV

func (*ErroringMockPV) SignProposal

func (pv *ErroringMockPV) SignProposal(chainID string, proposal *tmproto.Proposal) error

Implements PrivValidator.

func (*ErroringMockPV) SignVote

func (pv *ErroringMockPV) SignVote(chainID string, vote *tmproto.Vote) error

Implements PrivValidator.

type EventBus

type EventBus struct {
	service.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) NumClientSubscriptions

func (b *EventBus) NumClientSubscriptions(clientID string) int

func (*EventBus) NumClients

func (b *EventBus) NumClients() int

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 EventDataCompleteProposal) 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) PublishEventNewEvidence

func (b *EventBus) PublishEventNewEvidence(evidence EventDataNewEvidence) error

func (*EventBus) PublishEventNewRound

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

func (*EventBus) PublishEventNewRoundStep

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

func (*EventBus) PublishEventPolka

func (b *EventBus) PublishEventPolka(data EventDataRoundState) 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 events from Result. Note it will add predefined keys (EventTypeKey, TxHashKey). Existing events with the same keys will be overwritten.

func (*EventBus) PublishEventUnlock

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

func (*EventBus) PublishEventValidBlock

func (b *EventBus) PublishEventValidBlock(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,
	outCapacity ...int,
) (Subscription, error)

func (*EventBus) SubscribeUnbuffered

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

This method can be used for a local consensus explorer and synchronous testing. Do not use for for public facing / untrusted subscriptions!

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, outCapacity ...int) (Subscription, error)
	Unsubscribe(ctx context.Context, subscriber string, query tmpubsub.Query) error
	UnsubscribeAll(ctx context.Context, subscriber string) error

	NumClients() int
	NumClientSubscriptions(clientID string) int
}

type EventDataCompleteProposal

type EventDataCompleteProposal struct {
	Height int64  `json:"height"`
	Round  int32  `json:"round"`
	Step   string `json:"step"`

	BlockID BlockID `json:"block_id"`
}

type EventDataNewBlock

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

	ResultBeginBlock abci.ResponseBeginBlock `json:"result_begin_block"`
	ResultEndBlock   abci.ResponseEndBlock   `json:"result_end_block"`
}

type EventDataNewBlockHeader

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

	NumTxs           int64                   `json:"num_txs"` // Number of txs in a block
	ResultBeginBlock abci.ResponseBeginBlock `json:"result_begin_block"`
	ResultEndBlock   abci.ResponseEndBlock   `json:"result_end_block"`
}

type EventDataNewEvidence

type EventDataNewEvidence struct {
	Evidence Evidence `json:"evidence"`

	Height int64 `json:"height"`
}

type EventDataNewRound

type EventDataNewRound struct {
	Height int64  `json:"height"`
	Round  int32  `json:"round"`
	Step   string `json:"step"`

	Proposer ValidatorInfo `json:"proposer"`
}

type EventDataRoundState

type EventDataRoundState struct {
	Height int64  `json:"height"`
	Round  int32  `json:"round"`
	Step   string `json:"step"`
}

NOTE: This goes into the replay WAL

type EventDataString

type EventDataString string

type EventDataTx

type EventDataTx struct {
	abci.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
	Time() time.Time                                   // time of the equivocation
	Address() []byte                                   // address of the equivocating validator
	Bytes() []byte                                     // bytes which comprise the evidence
	Hash() []byte                                      // hash of the evidence
	Verify(chainID string, pubKey crypto.PubKey) error // verify the evidence
	Equal(Evidence) bool                               // check equality of evidence

	ValidateBasic() error
	String() string
}

Evidence represents any provable malicious activity by a validator.

func EvidenceFromProto

func EvidenceFromProto(evidence *tmproto.Evidence) (Evidence, error)

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) FromProto

func (data *EvidenceData) FromProto(eviData *tmproto.EvidenceData) error

FromProto sets a protobuf EvidenceData to the given pointer.

func (*EvidenceData) Hash

func (data *EvidenceData) Hash() tmbytes.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.

func (*EvidenceData) ToProto

func (data *EvidenceData) ToProto() (*tmproto.EvidenceData, error)

ToProto converts EvidenceData to protobuf

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 GenesisDoc

type GenesisDoc struct {
	GenesisTime     time.Time                `json:"genesis_time"`
	ChainID         string                   `json:"chain_id"`
	InitialHeight   int64                    `json:"initial_height"`
	ConsensusParams *tmproto.ConsensusParams `json:"consensus_params,omitempty"`
	Validators      []GenesisValidator       `json:"validators,omitempty"`
	AppHash         tmbytes.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 {
	Address Address       `json:"address"`
	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
	Version tmversion.Consensus `json:"version"`
	ChainID string              `json:"chain_id"`
	Height  int64               `json:"height"`
	Time    time.Time           `json:"time"`

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

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

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

	// consensus info
	EvidenceHash    tmbytes.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. NOTE: changes to the Header should be duplicated in: - header.Hash() - abci.Header - https://github.com/mydexchain/spec/blob/master/spec/blockchain/blockchain.md

func HeaderFromProto

func HeaderFromProto(ph *tmproto.Header) (Header, error)

FromProto sets a protobuf Header to the given pointer. It returns an error if the header is invalid.

func (*Header) Hash

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

Hash returns the hash of the header. It computes a Merkle tree from the header fields ordered as they appear in 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) Populate

func (h *Header) Populate(
	version tmversion.Consensus, chainID string,
	timestamp time.Time, lastBlockID BlockID,
	valHash, nextValHash []byte,
	consensusHash, appHash, lastResultsHash []byte,
	proposerAddress Address,
)

Populate the Header with state-derived data. Call this after MakeBlock to complete the Header.

func (*Header) StringIndented

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

StringIndented returns an indented string representation of the header.

func (*Header) ToProto

func (h *Header) ToProto() *tmproto.Header

ToProto converts Header to protobuf

func (Header) ValidateBasic

func (h Header) ValidateBasic() error

ValidateBasic performs stateless validation on a Header returning an error if any validation fails.

NOTE: Timestamp validation is subtle and handled elsewhere.

type LunaticValidatorEvidence

type LunaticValidatorEvidence struct {
	Header             *Header `json:"header"`
	Vote               *Vote   `json:"vote"`
	InvalidHeaderField string  `json:"invalid_header_field"`

	Timestamp time.Time `json:"timestamp"`
}

func NewLunaticValidatorEvidence

func NewLunaticValidatorEvidence(header *Header,
	vote *Vote, invalidHeaderField string, time time.Time) *LunaticValidatorEvidence

NewLunaticValidatorEvidence creates a new instance of the respective evidence

func (*LunaticValidatorEvidence) Address

func (e *LunaticValidatorEvidence) Address() []byte

func (*LunaticValidatorEvidence) Bytes

func (e *LunaticValidatorEvidence) Bytes() []byte

func (*LunaticValidatorEvidence) Equal

func (e *LunaticValidatorEvidence) Equal(ev Evidence) bool

func (*LunaticValidatorEvidence) Hash

func (e *LunaticValidatorEvidence) Hash() []byte

func (*LunaticValidatorEvidence) Height

func (e *LunaticValidatorEvidence) Height() int64

func (*LunaticValidatorEvidence) String

func (e *LunaticValidatorEvidence) String() string

func (*LunaticValidatorEvidence) Time

Time returns the maximum between the header's time and vote's time.

func (*LunaticValidatorEvidence) ToProto

func (*LunaticValidatorEvidence) ValidateBasic

func (e *LunaticValidatorEvidence) ValidateBasic() error

func (*LunaticValidatorEvidence) Verify

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

func (*LunaticValidatorEvidence) VerifyHeader

func (e *LunaticValidatorEvidence) VerifyHeader(committedHeader *Header) error

type MockPV

type MockPV struct {
	PrivKey crypto.PrivKey
	// contains filtered or unexported fields
}

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

func NewMockPV

func NewMockPV() MockPV

func NewMockPVWithParams

func NewMockPVWithParams(privKey crypto.PrivKey, breakProposalSigning, breakVoteSigning bool) MockPV

NewMockPVWithParams allows one to create a MockPV instance, but with finer grained control over the operation of the mock validator. This is useful for mocking test failures.

func (MockPV) DisableChecks

func (pv MockPV) DisableChecks()

XXX: Implement.

func (MockPV) ExtractIntoValidator

func (pv MockPV) ExtractIntoValidator(votingPower int64) *Validator

func (MockPV) GetPubKey

func (pv MockPV) GetPubKey() (crypto.PubKey, error)

Implements PrivValidator.

func (MockPV) SignProposal

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

Implements PrivValidator.

func (MockPV) SignVote

func (pv MockPV) SignVote(chainID string, vote *tmproto.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) PublishEventNewEvidence

func (NopEventBus) PublishEventNewEvidence(evidence EventDataNewEvidence) 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 uint32           `json:"index"`
	Bytes tmbytes.HexBytes `json:"bytes"`
	Proof merkle.Proof     `json:"proof"`
}

func PartFromProto

func PartFromProto(pb *tmproto.Part) (*Part, error)

func (*Part) String

func (part *Part) String() string

String returns a string representation of Part.

See StringIndented.

func (*Part) StringIndented

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

StringIndented returns an indented Part.

See merkle.Proof#StringIndented

func (*Part) ToProto

func (part *Part) ToProto() (*tmproto.Part, error)

func (*Part) ValidateBasic

func (part *Part) ValidateBasic() error

ValidateBasic performs basic validation.

type PartSet

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

func NewPartSetFromData

func NewPartSetFromData(data []byte, partSize uint32) *PartSet

Returns an immutable, full PartSet from the data bytes. The data bytes are split into "partSize" chunks, and merkle tree computed. CONTRACT: partSize is greater than zero.

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() *bits.BitArray

func (*PartSet) Count

func (ps *PartSet) Count() uint32

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

StringShort returns a short version of String.

(Count of Total)

func (*PartSet) Total

func (ps *PartSet) Total() uint32

type PartSetHeader

type PartSetHeader struct {
	Total uint32           `json:"total"`
	Hash  tmbytes.HexBytes `json:"hash"`
}

func PartSetHeaderFromProto

func PartSetHeaderFromProto(ppsh *tmproto.PartSetHeader) (*PartSetHeader, error)

FromProto sets a protobuf PartSetHeader to the given pointer

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

String returns a string representation of PartSetHeader.

1. total number of parts 2. first 6 bytes of the hash

func (*PartSetHeader) ToProto

func (psh *PartSetHeader) ToProto() tmproto.PartSetHeader

ToProto converts BloPartSetHeaderckID to protobuf

func (PartSetHeader) ValidateBasic

func (psh PartSetHeader) ValidateBasic() error

ValidateBasic performs basic validation.

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 PotentialAmnesiaEvidence

type PotentialAmnesiaEvidence struct {
	VoteA *Vote `json:"vote_a"`
	VoteB *Vote `json:"vote_b"`

	HeightStamp int64
	Timestamp   time.Time `json:"timestamp"`
}

PotentialAmnesiaEvidence is constructed when a validator votes on two different blocks at different rounds in the same height. PotentialAmnesiaEvidence can then evolve into AmnesiaEvidence if the indicted validator is incapable of providing the proof of lock change that validates voting twice in the allotted trial period. Heightstamp is used for each node to keep a track of how much time has passed so as to know when the trial period is finished and is set when the node first receives the evidence. Votes are ordered based on their timestamp

func NewPotentialAmnesiaEvidence

func NewPotentialAmnesiaEvidence(voteA, voteB *Vote, time time.Time) *PotentialAmnesiaEvidence

NewPotentialAmnesiaEvidence creates a new instance of the evidence and orders the votes correctly

func (*PotentialAmnesiaEvidence) Address

func (e *PotentialAmnesiaEvidence) Address() []byte

func (*PotentialAmnesiaEvidence) Bytes

func (e *PotentialAmnesiaEvidence) Bytes() []byte

func (*PotentialAmnesiaEvidence) Equal

func (e *PotentialAmnesiaEvidence) Equal(ev Evidence) bool

func (*PotentialAmnesiaEvidence) Hash

func (e *PotentialAmnesiaEvidence) Hash() []byte

NOTE: Heightstamp must not be included in hash

func (*PotentialAmnesiaEvidence) Height

func (e *PotentialAmnesiaEvidence) Height() int64

func (*PotentialAmnesiaEvidence) Primed

func (e *PotentialAmnesiaEvidence) Primed(trialPeriod, currentHeight int64) bool

Primed finds whether the PotentialAmnesiaEvidence is ready to be upgraded to Amnesia Evidence. It is decided if either the prosecuted node voted in the past or if the allocated trial period has expired without a proof of lock change having been provided.

func (*PotentialAmnesiaEvidence) String

func (e *PotentialAmnesiaEvidence) String() string

func (*PotentialAmnesiaEvidence) Time

func (*PotentialAmnesiaEvidence) ToProto

func (*PotentialAmnesiaEvidence) ValidateBasic

func (e *PotentialAmnesiaEvidence) ValidateBasic() error

func (*PotentialAmnesiaEvidence) Verify

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

type PrivValidator

type PrivValidator interface {
	GetPubKey() (crypto.PubKey, error)

	SignVote(chainID string, vote *tmproto.Vote) error
	SignProposal(chainID string, proposal *tmproto.Proposal) error
}

PrivValidator defines the functionality of a local Tendermint validator that signs votes and proposals, 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 ProofOfLockChange

type ProofOfLockChange struct {
	Votes  []*Vote       `json:"votes"`
	PubKey crypto.PubKey `json:"pubkey"`
}

ProofOfLockChange (POLC) proves that a node followed the consensus protocol and voted for a precommit in two different rounds because the node received a majority of votes for a different block in the latter round. In cases of amnesia evidence, a suspected node will need ProofOfLockChange to prove that the node did not break protocol.

func NewEmptyPOLC

func NewEmptyPOLC() *ProofOfLockChange

EmptyPOLC returns an empty polc. This is used when no polc has been provided in the allocated trial period time and the node now needs to move to upgrading to AmnesiaEvidence and hence uses an empty polc

func NewMockPOLC

func NewMockPOLC(height int64, time time.Time, pubKey crypto.PubKey) ProofOfLockChange

mock polc - fails validate basic, not stable

func NewPOLC

func NewPOLC(votes []*Vote, pubKey crypto.PubKey) *ProofOfLockChange

NewPOLC creates a POLC

func NewPOLCFromVoteSet

func NewPOLCFromVoteSet(voteSet *VoteSet, pubKey crypto.PubKey, blockID BlockID) (*ProofOfLockChange, error)

MakePOLCFromVoteSet can be used when a majority of prevotes or precommits for a block is seen that the node has itself not yet voted for in order to process the vote set into a proof of lock change

func ProofOfLockChangeFromProto

func ProofOfLockChangeFromProto(pb *tmproto.ProofOfLockChange) (*ProofOfLockChange, error)

func (*ProofOfLockChange) Address

func (e *ProofOfLockChange) Address() []byte

func (*ProofOfLockChange) BlockID

func (e *ProofOfLockChange) BlockID() BlockID

func (*ProofOfLockChange) Equal

func (*ProofOfLockChange) Height

func (e *ProofOfLockChange) Height() int64

func (*ProofOfLockChange) IsAbsent

func (e *ProofOfLockChange) IsAbsent() bool

IsAbsent checks if the polc is empty

func (*ProofOfLockChange) Round

func (e *ProofOfLockChange) Round() int32

func (*ProofOfLockChange) String

func (e *ProofOfLockChange) String() string

func (*ProofOfLockChange) Time

func (e *ProofOfLockChange) Time() time.Time

Time returns time of the latest vote.

func (*ProofOfLockChange) ToProto

func (*ProofOfLockChange) ValidateBasic

func (e *ProofOfLockChange) ValidateBasic() error

func (*ProofOfLockChange) ValidateVotes

func (e *ProofOfLockChange) ValidateVotes(valSet *ValidatorSet, chainID string) error

ValidateVotes checks the polc against the validator set of that height. The function makes sure that the polc contains a majority of votes and that each

type Proposal

type Proposal struct {
	Type      tmproto.SignedMsgType
	Height    int64     `json:"height"`
	Round     int32     `json:"round"`     // there can not be greater than 2_147_483_647 rounds
	POLRound  int32     `json:"pol_round"` // -1 if null.
	BlockID   BlockID   `json:"block_id"`
	Timestamp time.Time `json:"timestamp"`
	Signature []byte    `json:"signature"`
}

Proposal defines a block proposal for the consensus. It refers to the block by BlockID field. 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. If POLRound >= 0, then BlockID corresponds to the block that is locked in POLRound.

func NewProposal

func NewProposal(height int64, round int32, polRound int32, blockID BlockID) *Proposal

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

func ProposalFromProto

func ProposalFromProto(pp *tmproto.Proposal) (*Proposal, error)

FromProto sets a protobuf Proposal to the given pointer. It returns an error if the proposal is invalid.

func (*Proposal) String

func (p *Proposal) String() string

String returns a string representation of the Proposal.

1. height 2. round 3. block ID 4. POL round 5. first 6 bytes of signature 6. timestamp

See BlockID#String.

func (*Proposal) ToProto

func (p *Proposal) ToProto() *tmproto.Proposal

ToProto converts Proposal to protobuf

func (*Proposal) ValidateBasic

func (p *Proposal) ValidateBasic() error

ValidateBasic performs basic validation.

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. It is the basis of the light client.

func SignedHeaderFromProto

func SignedHeaderFromProto(shp *tmproto.SignedHeader) (*SignedHeader, error)

FromProto sets a protobuf SignedHeader to the given pointer. It returns an error if the hader or the commit is invalid.

func (SignedHeader) String

func (sh SignedHeader) String() string

String returns a string representation of SignedHeader.

func (SignedHeader) StringIndented

func (sh SignedHeader) StringIndented(indent string) string

StringIndented returns an indented string representation of SignedHeader.

Header Commit

func (*SignedHeader) ToProto

func (sh *SignedHeader) ToProto() *tmproto.SignedHeader

ToProto converts SignedHeader to protobuf

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 Subscription

type Subscription interface {
	Out() <-chan tmpubsub.Message
	Cancelled() <-chan struct{}
	Err() error
}

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 {
	RootHash tmbytes.HexBytes `json:"root_hash"`
	Data     Tx               `json:"data"`
	Proof    merkle.Proof     `json:"proof"`
}

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

func TxProofFromProto

func TxProofFromProto(pb tmproto.TxProof) (TxProof, error)

func (TxProof) Leaf

func (tp TxProof) Leaf() []byte

Leaf returns the hash(tx), which is the leaf in the merkle tree which this proof refers to.

func (TxProof) ToProto

func (tp TxProof) ToProto() tmproto.TxProof

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 Txs

type Txs []Tx

Txs is a slice of Tx.

func (Txs) Hash

func (txs Txs) Hash() []byte

Hash returns the Merkle root hash of the transaction hashes. i.e. the leaves of the tree are the hashes of the txs.

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"`

	ProposerPriority int64 `json:"proposer_priority"`
}

Volatile state for each Validator NOTE: The ProposerPriority 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

NewValidator returns a new validator with the given pubkey and voting power.

func ValidatorFromProto

func ValidatorFromProto(vp *tmproto.Validator) (*Validator, error)

FromProto sets a protobuf Validator to the given pointer. It returns an error if the public key is invalid.

func (*Validator) Bytes

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

Bytes computes the unique encoding of a validator with a given voting power. These are the bytes that gets hashed in consensus. It excludes address as its redundant with the pubkey. This also excludes ProposerPriority which changes every round.

func (*Validator) CompareProposerPriority

func (v *Validator) CompareProposerPriority(other *Validator) *Validator

Returns the one with higher ProposerPriority.

func (*Validator) Copy

func (v *Validator) Copy() *Validator

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

func (*Validator) String

func (v *Validator) String() string

String returns a string representation of String.

1. address 2. public key 3. voting power 4. proposer priority

func (*Validator) ToProto

func (v *Validator) ToProto() (*tmproto.Validator, error)

ToProto converts Valiator to protobuf

func (*Validator) ValidateBasic

func (v *Validator) ValidateBasic() error

ValidateBasic performs basic validation.

type ValidatorInfo

type ValidatorInfo struct {
	Address Address `json:"address"`
	Index   int32   `json:"index"`
}

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 .VotingPower, so the indices are fixed for all rounds of a given blockchain height - ie. the validators are sorted by their voting power (descending). Secondary index - .Address (ascending).

On the other hand, the .ProposerPriority of each validator and the designated .GetProposer() of a set changes every round, upon calling .IncrementProposerPriority().

NOTE: Not goroutine-safe. NOTE: All get/set to validators should copy the value for safety.

func NewValidatorSet

func NewValidatorSet(valz []*Validator) *ValidatorSet

NewValidatorSet initializes a ValidatorSet by copying over the values from `valz`, a list of Validators. If valz is nil or empty, the new ValidatorSet will have an empty list of Validators.

The addresses of validators in `valz` must be unique otherwise the function panics.

Note the validator set size has an implied limit equal to that of the MaxVotesCount - commits by a validator set larger than this will fail validation.

func ValidatorSetFromProto

func ValidatorSetFromProto(vp *tmproto.ValidatorSet) (*ValidatorSet, error)

ValidatorSetFromProto sets a protobuf ValidatorSet to the given pointer. It returns an error if any of the validators from the set or the proposer is invalid

func (*ValidatorSet) Copy

func (vals *ValidatorSet) Copy() *ValidatorSet

Copy each validator into a new ValidatorSet.

func (*ValidatorSet) CopyIncrementProposerPriority

func (vals *ValidatorSet) CopyIncrementProposerPriority(times int32) *ValidatorSet

CopyIncrementProposerPriority increments ProposerPriority and updates the proposer on a copy, and returns it.

func (*ValidatorSet) GetByAddress

func (vals *ValidatorSet) GetByAddress(address []byte) (index int32, val *Validator)

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

func (*ValidatorSet) GetByIndex

func (vals *ValidatorSet) GetByIndex(index int32) (address []byte, val *Validator)

GetByIndex returns the validator's address and validator itself (copy) 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) IncrementProposerPriority

func (vals *ValidatorSet) IncrementProposerPriority(times int32)

IncrementProposerPriority increments ProposerPriority of each validator and updates the proposer. Panics if validator set is empty. `times` must be positive.

func (*ValidatorSet) IsNilOrEmpty

func (vals *ValidatorSet) IsNilOrEmpty() bool

IsNilOrEmpty returns true if validator set is nil or empty.

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) RescalePriorities

func (vals *ValidatorSet) RescalePriorities(diffMax int64)

RescalePriorities rescales the priorities such that the distance between the maximum and minimum is smaller than `diffMax`. Panics if validator set is empty.

func (*ValidatorSet) Size

func (vals *ValidatorSet) Size() int

Size returns the length of the validator set.

func (*ValidatorSet) String

func (vals *ValidatorSet) String() string

String returns a string representation of ValidatorSet.

See StringIndented.

func (*ValidatorSet) StringIndented

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

StringIndented returns an intended String.

See Validator#String.

func (*ValidatorSet) ToProto

func (vals *ValidatorSet) ToProto() (*tmproto.ValidatorSet, error)

ToProto converts ValidatorSet to protobuf

func (*ValidatorSet) TotalVotingPower

func (vals *ValidatorSet) TotalVotingPower() int64

TotalVotingPower returns the sum of the voting powers of all validators. It recomputes the total voting power if required.

func (*ValidatorSet) UpdateWithChangeSet

func (vals *ValidatorSet) UpdateWithChangeSet(changes []*Validator) error

UpdateWithChangeSet attempts to update the validator set with 'changes'. It performs the following steps: - validates the changes making sure there are no duplicates and splits them in updates and deletes - verifies that applying the changes will not result in errors - computes the total voting power BEFORE removals to ensure that in the next steps the priorities

across old and newly added validators are fair

- computes the priorities of new validators against the final set - applies the updates against the validator set - applies the removals against the validator set - performs scaling and centering of priority values If an error is detected during verification steps, it is returned and the validator set is not changed.

func (*ValidatorSet) ValidateBasic

func (vals *ValidatorSet) ValidateBasic() error

func (*ValidatorSet) VerifyCommit

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

VerifyCommit verifies +2/3 of the set had signed the given commit.

It checks all the signatures! While it's safe to exit as soon as we have 2/3+ signatures, doing so would impact incentivization logic in the ABCI application that depends on the LastCommitInfo sent in BeginBlock, which includes which validators signed. For instance, Gaia incentivizes proposers with a bonus for including more than +2/3 of the signatures.

func (*ValidatorSet) VerifyCommitLight

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

VerifyCommitLight verifies +2/3 of the set had signed the given commit.

This method is primarily used by the light client and does not check all the signatures.

func (*ValidatorSet) VerifyCommitLightTrusting

func (vals *ValidatorSet) VerifyCommitLightTrusting(chainID string, commit *Commit, trustLevel tmmath.Fraction) error

VerifyCommitLightTrusting verifies that trustLevel of the validator set signed this commit.

NOTE the given validators do not necessarily correspond to the validator set for this commit, but there may be some intersection.

This method is primarily used by the light client and does not check all the signatures.

type ValidatorsByAddress

type ValidatorsByAddress []*Validator

ValidatorsByAddress implements sort.Interface for []*Validator based on the Address field.

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 ValidatorsByVotingPower

type ValidatorsByVotingPower []*Validator

ValidatorsByVotingPower implements sort.Interface for []*Validator based on the VotingPower and Address fields.

func (ValidatorsByVotingPower) Len

func (valz ValidatorsByVotingPower) Len() int

func (ValidatorsByVotingPower) Less

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

func (ValidatorsByVotingPower) Swap

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

type Vote

type Vote struct {
	Type             tmproto.SignedMsgType `json:"type"`
	Height           int64                 `json:"height"`
	Round            int32                 `json:"round"`    // assume there will not be greater than 2_147_483_647 rounds
	BlockID          BlockID               `json:"block_id"` // zero if vote is nil.
	Timestamp        time.Time             `json:"timestamp"`
	ValidatorAddress Address               `json:"validator_address"`
	ValidatorIndex   int32                 `json:"validator_index"`
	Signature        []byte                `json:"signature"`
}

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

func MakeVote

func MakeVote(
	height int64,
	blockID BlockID,
	valSet *ValidatorSet,
	privVal PrivValidator,
	chainID string,
	now time.Time,
) (*Vote, error)

func VoteFromProto

func VoteFromProto(pv *tmproto.Vote) (*Vote, error)

FromProto converts a proto generetad type to a handwritten type return type, nil if everything converts safely, otherwise nil, error

func (*Vote) CommitSig

func (vote *Vote) CommitSig() CommitSig

CommitSig converts the Vote to a CommitSig.

func (*Vote) Copy

func (vote *Vote) Copy() *Vote

func (*Vote) String

func (vote *Vote) String() string

String returns a string representation of Vote.

1. validator index 2. first 6 bytes of validator address 3. height 4. round, 5. type byte 6. type string 7. first 6 bytes of block hash 8. first 6 bytes of signature 9. timestamp

func (*Vote) ToProto

func (vote *Vote) ToProto() *tmproto.Vote

ToProto converts the handwritten type to proto generated type return type, nil if everything converts safely, otherwise nil, error

func (*Vote) ValidateBasic

func (vote *Vote) ValidateBasic() error

ValidateBasic performs basic validation.

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 CommitToVoteSet

func CommitToVoteSet(chainID string, commit *Commit, vals *ValidatorSet) *VoteSet

CommitToVoteSet constructs a VoteSet from the Commit and validator set. Panics if signatures from the commit can't be added to the voteset. Inverse of VoteSet.MakeCommit().

func NewVoteSet

func NewVoteSet(chainID string, height int64, round int32,
	signedMsgType tmproto.SignedMsgType, 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() *bits.BitArray

Implements VoteSetReader.

func (*VoteSet) BitArrayByBlockID

func (voteSet *VoteSet) BitArrayByBlockID(blockID BlockID) *bits.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 int32) *Vote

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

func (*VoteSet) GetHeight

func (voteSet *VoteSet) GetHeight() int64

Implements VoteSetReader.

func (*VoteSet) GetRound

func (voteSet *VoteSet) GetRound() int32

Implements VoteSetReader.

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) IsCommit

func (voteSet *VoteSet) IsCommit() bool

Implements VoteSetReader.

func (*VoteSet) MakeCommit

func (voteSet *VoteSet) MakeCommit() *Commit

MakeCommit constructs a Commit from the VoteSet. It only includes precommits for the block, which has 2/3+ majority, and nil.

Panics if the vote type is not PrecommitType or if there's no +2/3 votes for a single block.

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/signedMsgType (since its already included in the votes).

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

Implements VoteSetReader.

func (*VoteSet) String

func (voteSet *VoteSet) String() string

String returns a string representation of VoteSet.

See StringIndented.

func (*VoteSet) StringIndented

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

StringIndented returns an indented String.

Height Round Type Votes Votes bit array 2/3+ majority

See Vote#String.

func (*VoteSet) StringShort

func (voteSet *VoteSet) StringShort() string

StringShort returns a short representation of VoteSet.

1. height 2. round 3. signed msg type 4. first 2/3+ majority 5. fraction of voted power 6. votes bit array 7. 2/3+ majority for each peer

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

Implements VoteSetReader.

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 {
	GetHeight() int64
	GetRound() int32
	Type() byte
	Size() int
	BitArray() *bits.BitArray
	GetByIndex(int32) *Vote
	IsCommit() bool
}

Common interface between *consensus.VoteSet and types.Commit

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