evidence

package
v1.0.0 Latest Latest
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 Go to latest Published: Apr 24, 2021 License: GPL-3.0 Imports: 21 Imported by: 0

Documentation

Overview

Package evidence implements recording duplicate blocks and votes for cbft consensus.

Index

Constants

View Source 
const (
	DuplicatePrepareBlockType consensus.EvidenceType = 1
	DuplicatePrepareVoteType  consensus.EvidenceType = 2
	DuplicateViewChangeType   consensus.EvidenceType = 3
)
View Source 
const (
	// IdentityLength is the expected length of the identity
	IdentityLength = 20
)

Variables

This section is empty.

Functions

func NewBaseEvidencePool 

func NewBaseEvidencePool(path string) (*baseEvidencePool, error)

func NewEvidence 

func NewEvidence(dupType consensus.EvidenceType, data string) (consensus.Evidence, error)

NewEvidences retrieves the duplicate evidence by parsing string

func NewEvidences 

func NewEvidences(data string) (consensus.Evidences, error)

NewEvidences retrieves the duplicate evidence by parsing string

Types

type DuplicatePrepareBlockEvidence 

type DuplicatePrepareBlockEvidence struct {
	PrepareA *EvidencePrepare `json:"prepareA"`
	PrepareB *EvidencePrepare `json:"prepareB"`
}

DuplicatePrepareBlockEvidence recording duplicate blocks

func (DuplicatePrepareBlockEvidence) BlockNumber 

func (d DuplicatePrepareBlockEvidence) BlockNumber() uint64

func (DuplicatePrepareBlockEvidence) BlsPubKey added in v0.7.3 

func (d DuplicatePrepareBlockEvidence) BlsPubKey() *bls.PublicKey

func (DuplicatePrepareBlockEvidence) Epoch 

func (d DuplicatePrepareBlockEvidence) Epoch() uint64

func (DuplicatePrepareBlockEvidence) Equal 

func (d DuplicatePrepareBlockEvidence) Equal(ev consensus.Evidence) bool

func (DuplicatePrepareBlockEvidence) Error 

func (d DuplicatePrepareBlockEvidence) Error() string

func (DuplicatePrepareBlockEvidence) Hash 

func (d DuplicatePrepareBlockEvidence) Hash() []byte

func (DuplicatePrepareBlockEvidence) NodeID added in v0.7.3 

func (d DuplicatePrepareBlockEvidence) NodeID() discover.NodeID

func (DuplicatePrepareBlockEvidence) Type 

func (d DuplicatePrepareBlockEvidence) Type() consensus.EvidenceType

func (DuplicatePrepareBlockEvidence) Validate 

func (d DuplicatePrepareBlockEvidence) Validate() error

Validate verify the validity of the DuplicatePrepareBlockEvidence the same epoch,viewNumber,blockNumber,nodeId and different blockHash

func (DuplicatePrepareBlockEvidence) ValidateMsg 

func (d DuplicatePrepareBlockEvidence) ValidateMsg() bool

func (DuplicatePrepareBlockEvidence) ViewNumber 

func (d DuplicatePrepareBlockEvidence) ViewNumber() uint64

type DuplicatePrepareVoteEvidence 

type DuplicatePrepareVoteEvidence struct {
	VoteA *EvidenceVote `json:"voteA"`
	VoteB *EvidenceVote `json:"voteB"`
}

DuplicatePrepareVoteEvidence recording duplicate vote

func (DuplicatePrepareVoteEvidence) BlockNumber 

func (d DuplicatePrepareVoteEvidence) BlockNumber() uint64

func (DuplicatePrepareVoteEvidence) BlsPubKey added in v0.7.3 

func (d DuplicatePrepareVoteEvidence) BlsPubKey() *bls.PublicKey

func (DuplicatePrepareVoteEvidence) Epoch 

func (d DuplicatePrepareVoteEvidence) Epoch() uint64

func (DuplicatePrepareVoteEvidence) Equal 

func (d DuplicatePrepareVoteEvidence) Equal(ev consensus.Evidence) bool

func (DuplicatePrepareVoteEvidence) Error 

func (d DuplicatePrepareVoteEvidence) Error() string

func (DuplicatePrepareVoteEvidence) Hash 

func (d DuplicatePrepareVoteEvidence) Hash() []byte

func (DuplicatePrepareVoteEvidence) NodeID added in v0.7.3 

func (d DuplicatePrepareVoteEvidence) NodeID() discover.NodeID

func (DuplicatePrepareVoteEvidence) Type 

func (d DuplicatePrepareVoteEvidence) Type() consensus.EvidenceType

func (DuplicatePrepareVoteEvidence) Validate 

func (d DuplicatePrepareVoteEvidence) Validate() error

Validate verify the validity of the duplicatePrepareVoteEvidence the same epoch,viewNumber,blockNumber,nodeId and different blockHash

func (DuplicatePrepareVoteEvidence) ValidateMsg 

func (d DuplicatePrepareVoteEvidence) ValidateMsg() bool

func (DuplicatePrepareVoteEvidence) ViewNumber 

func (d DuplicatePrepareVoteEvidence) ViewNumber() uint64

type DuplicateViewChangeEvidence 

type DuplicateViewChangeEvidence struct {
	ViewA *EvidenceView `json:"viewA"`
	ViewB *EvidenceView `json:"viewB"`
}

DuplicateViewChangeEvidence recording duplicate viewChange

func (DuplicateViewChangeEvidence) BlockNumber 

func (d DuplicateViewChangeEvidence) BlockNumber() uint64

func (DuplicateViewChangeEvidence) BlsPubKey added in v0.7.3 

func (d DuplicateViewChangeEvidence) BlsPubKey() *bls.PublicKey

func (DuplicateViewChangeEvidence) Epoch 

func (d DuplicateViewChangeEvidence) Epoch() uint64

func (DuplicateViewChangeEvidence) Equal 

func (d DuplicateViewChangeEvidence) Equal(ev consensus.Evidence) bool

func (DuplicateViewChangeEvidence) Error 

func (d DuplicateViewChangeEvidence) Error() string

func (DuplicateViewChangeEvidence) Hash 

func (d DuplicateViewChangeEvidence) Hash() []byte

func (DuplicateViewChangeEvidence) NodeID added in v0.7.3 

func (d DuplicateViewChangeEvidence) NodeID() discover.NodeID

func (DuplicateViewChangeEvidence) Type 

func (d DuplicateViewChangeEvidence) Type() consensus.EvidenceType

func (DuplicateViewChangeEvidence) Validate 

func (d DuplicateViewChangeEvidence) Validate() error

Validate verify the validity of the duplicateViewChangeEvidence the same epoch,viewNumber,nodeId and different block

func (DuplicateViewChangeEvidence) ValidateMsg 

func (d DuplicateViewChangeEvidence) ValidateMsg() bool

func (DuplicateViewChangeEvidence) ViewNumber 

func (d DuplicateViewChangeEvidence) ViewNumber() uint64

type EvidenceData 

type EvidenceData struct {
	DP []*DuplicatePrepareBlockEvidence `json:"duplicatePrepare"`
	DV []*DuplicatePrepareVoteEvidence  `json:"duplicateVote"`
	DC []*DuplicateViewChangeEvidence   `json:"duplicateViewchange"`
}

EvidenceData encapsulate externally visible duplicate data

func ClassifyEvidence 

func ClassifyEvidence(evds consensus.Evidences) *EvidenceData

ClassifyEvidence tries to convert evidence list to evidenceData

func NewEvidenceData 

func NewEvidenceData() *EvidenceData

type EvidenceNode 

type EvidenceNode struct {
	Index     uint32          `json:"index"`
	NodeID    discover.NodeID `json:"nodeId"`
	BlsPubKey *bls.PublicKey  `json:"blsPubKey"`
}

EvidenceNode mainly used to save node BlsPubKey

func NewEvidenceNode 

func NewEvidenceNode(node *cbfttypes.ValidateNode) *EvidenceNode

func (*EvidenceNode) Verify 

func (vn *EvidenceNode) Verify(data, sign []byte) error

bls verifies signature

type EvidencePool 

type EvidencePool interface {
	consensus.EvidencePool
	AddPrepareBlock(pb *protocols.PrepareBlock, node *cbfttypes.ValidateNode) error
	AddPrepareVote(pv *protocols.PrepareVote, node *cbfttypes.ValidateNode) error
	AddViewChange(vc *protocols.ViewChange, node *cbfttypes.ValidateNode) error
}

EvidencePool encapsulates functions required to record duplicate blocks and votes.

func NewEvidencePool 

func NewEvidencePool(ctx *node.ServiceContext, evidenceDir string) (EvidencePool, error)

NewEvidencePool creates a new baseEvidencePool to record duplicate blocks and votes.

type EvidencePrepare 

type EvidencePrepare struct {
	Epoch        uint64           `json:"epoch"`
	ViewNumber   uint64           `json:"viewNumber"`
	BlockHash    common.Hash      `json:"blockHash"`
	BlockNumber  uint64           `json:"blockNumber"`
	BlockIndex   uint32           `json:"blockIndex"` // The block number of the current ViewNumber proposal, 0....10
	BlockData    common.Hash      `json:"blockData"`
	ValidateNode *EvidenceNode    `json:"validateNode"`
	Signature    ctypes.Signature `json:"signature"`
}

Proposed block carrier.

func NewEvidencePrepare 

func NewEvidencePrepare(pb *protocols.PrepareBlock, node *cbfttypes.ValidateNode) (*EvidencePrepare, error)

func (*EvidencePrepare) CannibalizeBytes 

func (ep *EvidencePrepare) CannibalizeBytes() ([]byte, error)

func (*EvidencePrepare) Verify 

func (ep *EvidencePrepare) Verify() error

type EvidenceView 

type EvidenceView struct {
	Epoch        uint64           `json:"epoch"`
	ViewNumber   uint64           `json:"viewNumber"`
	BlockHash    common.Hash      `json:"blockHash"`
	BlockNumber  uint64           `json:"blockNumber"`
	ValidateNode *EvidenceNode    `json:"validateNode"`
	Signature    ctypes.Signature `json:"signature"`
	BlockEpoch   uint64           `json:"blockEpoch"`
	BlockView    uint64           `json:"blockView"`
}

func NewEvidenceView 

func NewEvidenceView(vc *protocols.ViewChange, node *cbfttypes.ValidateNode) (*EvidenceView, error)

func (*EvidenceView) CannibalizeBytes 

func (ev *EvidenceView) CannibalizeBytes() ([]byte, error)

func (*EvidenceView) Verify 

func (ev *EvidenceView) Verify() error

type EvidenceVote 

type EvidenceVote struct {
	Epoch        uint64           `json:"epoch"`
	ViewNumber   uint64           `json:"viewNumber"`
	BlockHash    common.Hash      `json:"blockHash"`
	BlockNumber  uint64           `json:"blockNumber"`
	BlockIndex   uint32           `json:"blockIndex"` // The block number of the current ViewNumber proposal, 0....10
	ValidateNode *EvidenceNode    `json:"validateNode"`
	Signature    ctypes.Signature `json:"signature"`
}

func NewEvidenceVote 

func NewEvidenceVote(pv *protocols.PrepareVote, node *cbfttypes.ValidateNode) (*EvidenceVote, error)

func (*EvidenceVote) CannibalizeBytes 

func (ev *EvidenceVote) CannibalizeBytes() ([]byte, error)

func (*EvidenceVote) Verify 

func (ev *EvidenceVote) Verify() error

type Identity 

type Identity string

func (Identity) Bytes 

func (id Identity) Bytes() []byte

Bytes gets the string representation of the underlying identity.

type NumberOrderPrepareBlock 

type NumberOrderPrepareBlock []*EvidencePrepare

func (*NumberOrderPrepareBlock) Add 

func (opb *NumberOrderPrepareBlock) Add(pb *EvidencePrepare) error

func (NumberOrderPrepareBlock) Len 

func (opb NumberOrderPrepareBlock) Len() int

func (NumberOrderPrepareBlock) Less 

func (opb NumberOrderPrepareBlock) Less(i, j int) bool

func (NumberOrderPrepareBlock) Swap 

func (opb NumberOrderPrepareBlock) Swap(i, j int)

type NumberOrderPrepareVote 

type NumberOrderPrepareVote []*EvidenceVote

func (*NumberOrderPrepareVote) Add 

func (opv *NumberOrderPrepareVote) Add(pv *EvidenceVote) error

func (NumberOrderPrepareVote) Len 

func (opv NumberOrderPrepareVote) Len() int

func (NumberOrderPrepareVote) Less 

func (opv NumberOrderPrepareVote) Less(i, j int) bool

func (NumberOrderPrepareVote) Swap 

func (opv NumberOrderPrepareVote) Swap(i, j int)

type NumberOrderViewChange 

type NumberOrderViewChange []*EvidenceView

func (*NumberOrderViewChange) Add 

func (ovc *NumberOrderViewChange) Add(vc *EvidenceView) error

func (NumberOrderViewChange) Len 

func (ovc NumberOrderViewChange) Len() int

func (NumberOrderViewChange) Less 

func (ovc NumberOrderViewChange) Less(i, j int) bool

func (NumberOrderViewChange) Swap 

func (ovc NumberOrderViewChange) Swap(i, j int)

type PrepareBlockEvidence 

type PrepareBlockEvidence map[Identity]NumberOrderPrepareBlock

func (PrepareBlockEvidence) Add 

func (pbe PrepareBlockEvidence) Add(pb *EvidencePrepare, id Identity) error

Add tries to add prepare block to PrepareBlockEvidence. if the return error is DuplicatePrepareBlockEvidence instructions the prepare is duplicated

func (PrepareBlockEvidence) Clear 

func (pbe PrepareBlockEvidence) Clear(epoch uint64, viewNumber uint64)

Clear tries to clear stale intermediate prepare

func (PrepareBlockEvidence) Size 

func (pbe PrepareBlockEvidence) Size() int

type PrepareVoteEvidence 

type PrepareVoteEvidence map[Identity]NumberOrderPrepareVote

func (PrepareVoteEvidence) Add 

func (pve PrepareVoteEvidence) Add(pv *EvidenceVote, id Identity) error

Add tries to add prepare vote to PrepareVoteEvidence. if the return error is DuplicatePrepareVoteEvidence instructions the vote is duplicated

func (PrepareVoteEvidence) Clear 

func (pve PrepareVoteEvidence) Clear(epoch uint64, viewNumber uint64)

Clear tries to clear stale intermediate vote

func (PrepareVoteEvidence) Size 

func (pve PrepareVoteEvidence) Size() int

type ViewChangeEvidence 

type ViewChangeEvidence map[Identity]NumberOrderViewChange

func (ViewChangeEvidence) Add 

func (vce ViewChangeEvidence) Add(vc *EvidenceView, id Identity) error

Add tries to add view to ViewChangeEvidence. if the return error is DuplicateViewChangeEvidence instructions the view is duplicated

func (ViewChangeEvidence) Clear 

func (vce ViewChangeEvidence) Clear(epoch uint64, viewNumber uint64)

Clear tries to clear stale intermediate view

func (ViewChangeEvidence) Size 

func (vce ViewChangeEvidence) Size() int

Source Files

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