bor

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Published: Jun 15, 2023 License: GPL-3.0 Imports: 42 Imported by: 0

Documentation

Overview

Package bor is a generated GoMock package.

Package bor is a generated GoMock package.

Index

Constants

This section is empty.

Variables

View Source
var (

	// ErrInvalidTimestamp is returned if the timestamp of a block is lower than
	// the previous block's timestamp + the minimum block period.
	ErrInvalidTimestamp = errors.New("invalid timestamp")
)

Various error messages to mark blocks invalid. These should be private to prevent engine specific errors from being referenced in the remainder of the codebase, inherently breaking if the engine is swapped out. Please put common error types into the consensus package.

View Source
var (
	// MaxCheckpointLength is the maximum number of blocks that can be requested for constructing a checkpoint root hash
	MaxCheckpointLength = uint64(math.Pow(2, 15))
)

Functions

func BorRLP

func BorRLP(header *types.Header, c *params.BorConfig) []byte

BorRLP returns the rlp bytes which needs to be signed for the bor sealing. The RLP to sign consists of the entire header apart from the 65 byte signature contained at the end of the extra data.

Note, the method requires the extra data to be at least 65 bytes, otherwise it panics. This is done to avoid accidentally using both forms (signature present or not), which could be abused to produce different hashes for the same header.

func CalcProducerDelay

func CalcProducerDelay(number uint64, succession int, c *params.BorConfig) uint64

CalcProducerDelay is the block delay algorithm based on block time, period, producerDelay and turn-ness of a signer

func Difficulty

func Difficulty(validatorSet *valset.ValidatorSet, signer common.Address) uint64

Difficulty returns the difficulty for a particular signer at the current snapshot number

func IsBlockOnTime

func IsBlockOnTime(parent *types.Header, header *types.Header, number uint64, succession int, cfg *params.BorConfig) bool

func IsSprintStart

func IsSprintStart(number, sprint uint64) bool

func SealHash

func SealHash(header *types.Header, c *params.BorConfig) (hash common.Hash)

SealHash returns the hash of a block prior to it being sealed.

func Sign

func Sign(signFn SignerFn, signer common.Address, header *types.Header, c *params.BorConfig) error

Types

type API

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

API is a user facing RPC API to allow controlling the signer and voting mechanisms of the proof-of-authority scheme.

func (*API) GetAuthor

func (api *API) GetAuthor(blockNrOrHash *rpc.BlockNumberOrHash) (*common.Address, error)

GetAuthor retrieves the author a block.

func (*API) GetCurrentProposer

func (api *API) GetCurrentProposer() (common.Address, error)

GetCurrentProposer gets the current proposer

func (*API) GetCurrentValidators

func (api *API) GetCurrentValidators() ([]*valset.Validator, error)

GetCurrentValidators gets the current validators

func (*API) GetRootHash

func (api *API) GetRootHash(start uint64, end uint64) (string, error)

GetRootHash returns the merkle root of the start to end block headers

func (*API) GetSigners

func (api *API) GetSigners(number *rpc.BlockNumber) ([]common.Address, error)

GetSigners retrieves the list of authorized signers at the specified block.

func (*API) GetSignersAtHash

func (api *API) GetSignersAtHash(hash common.Hash) ([]common.Address, error)

GetSignersAtHash retrieves the list of authorized signers at the specified block.

func (*API) GetSnapshot

func (api *API) GetSnapshot(number *rpc.BlockNumber) (*Snapshot, error)

GetSnapshot retrieves the state snapshot at a given block.

func (*API) GetSnapshotAtHash

func (api *API) GetSnapshotAtHash(hash common.Hash) (*Snapshot, error)

GetSnapshotAtHash retrieves the state snapshot at a given block.

func (*API) GetSnapshotProposer

func (api *API) GetSnapshotProposer(blockNrOrHash *rpc.BlockNumberOrHash) (common.Address, error)

GetSnapshotProposer retrieves the in-turn signer at a given block.

func (*API) GetSnapshotProposerSequence

func (api *API) GetSnapshotProposerSequence(blockNrOrHash *rpc.BlockNumberOrHash) (BlockSigners, error)

GetSnapshotProposerSequence retrieves the in-turn signers of all sprints in a span

type BlockSigners

type BlockSigners struct {
	Signers []difficultiesKV
	Diff    int
	Author  common.Address
}

type BlockTooSoonError

type BlockTooSoonError struct {
	Number     uint64
	Succession int
}

func (*BlockTooSoonError) Error

func (e *BlockTooSoonError) Error() string

type Bor

type Bor struct {
	GenesisContractsClient GenesisContract
	HeimdallClient         IHeimdallClient
	// contains filtered or unexported fields
}

Bor is the matic-bor consensus engine

func New

func New(
	chainConfig *params.ChainConfig,
	db ethdb.Database,
	ethAPI api.Caller,
	spanner Spanner,
	heimdallClient IHeimdallClient,
	genesisContracts GenesisContract,
	devFakeAuthor bool,
) *Bor

New creates a Matic Bor consensus engine.

func (*Bor) APIs

func (c *Bor) APIs(chain consensus.ChainHeaderReader) []rpc.API

APIs implements consensus.Engine, returning the user facing RPC API to allow controlling the signer voting.

func (*Bor) Author

func (c *Bor) Author(header *types.Header) (common.Address, error)

Author implements consensus.Engine, returning the Ethereum address recovered from the signature in the header's extra-data section.

func (*Bor) Authorize

func (c *Bor) Authorize(currentSigner common.Address, signFn SignerFn)

Authorize injects a private key into the consensus engine to mint new blocks with.

func (*Bor) CalcDifficulty

func (c *Bor) CalcDifficulty(chain consensus.ChainHeaderReader, _ uint64, parent *types.Header) *big.Int

CalcDifficulty is the difficulty adjustment algorithm. It returns the difficulty that a new block should have based on the previous blocks in the chain and the current signer.

func (*Bor) Close

func (c *Bor) Close() error

Close implements consensus.Engine. It's a noop for bor as there are no background threads.

func (*Bor) CommitStates

func (c *Bor) CommitStates(
	ctx context.Context,
	state *state.StateDB,
	header *types.Header,
	chain statefull.ChainContext,
) ([]*types.StateSyncData, error)

CommitStates commit states

func (*Bor) FetchAndCommitSpan

func (c *Bor) FetchAndCommitSpan(
	ctx context.Context,
	newSpanID uint64,
	state *state.StateDB,
	header *types.Header,
	chain core.ChainContext,
) error

func (*Bor) Finalize

func (c *Bor) Finalize(chain consensus.ChainHeaderReader, header *types.Header, state *state.StateDB, _ []*types.Transaction, _ []*types.Header)

Finalize implements consensus.Engine, ensuring no uncles are set, nor block rewards given.

func (*Bor) FinalizeAndAssemble

func (c *Bor) FinalizeAndAssemble(ctx context.Context, chain consensus.ChainHeaderReader, header *types.Header, state *state.StateDB, txs []*types.Transaction, uncles []*types.Header, receipts []*types.Receipt) (*types.Block, error)

FinalizeAndAssemble implements consensus.Engine, ensuring no uncles are set, nor block rewards given, and returns the final block.

func (*Bor) GetCurrentValidators

func (c *Bor) GetCurrentValidators(ctx context.Context, headerHash common.Hash, blockNumber uint64) ([]*valset.Validator, error)

func (*Bor) GetSpanner

func (c *Bor) GetSpanner() Spanner

func (*Bor) Prepare

func (c *Bor) Prepare(chain consensus.ChainHeaderReader, header *types.Header) error

Prepare implements consensus.Engine, preparing all the consensus fields of the header for running the transactions on top.

func (*Bor) Seal

func (c *Bor) Seal(ctx context.Context, chain consensus.ChainHeaderReader, block *types.Block, results chan<- *types.Block, stop <-chan struct{}) error

Seal implements consensus.Engine, attempting to create a sealed block using the local signing credentials.

func (*Bor) SealHash

func (c *Bor) SealHash(header *types.Header) common.Hash

SealHash returns the hash of a block prior to it being sealed.

func (*Bor) SetHeimdallClient

func (c *Bor) SetHeimdallClient(h IHeimdallClient)

func (*Bor) SetSpanner

func (c *Bor) SetSpanner(spanner Spanner)

func (*Bor) VerifyHeader

func (c *Bor) VerifyHeader(chain consensus.ChainHeaderReader, header *types.Header, _ bool) error

VerifyHeader checks whether a header conforms to the consensus rules.

func (*Bor) VerifyHeaders

func (c *Bor) VerifyHeaders(chain consensus.ChainHeaderReader, headers []*types.Header, _ []bool) (chan<- struct{}, <-chan error)

VerifyHeaders is similar to VerifyHeader, but verifies a batch of headers. The method returns a quit channel to abort the operations and a results channel to retrieve the async verifications (the order is that of the input slice).

func (*Bor) VerifySeal

func (c *Bor) VerifySeal(chain consensus.ChainHeaderReader, header *types.Header) error

VerifySeal implements consensus.Engine, checking whether the signature contained in the header satisfies the consensus protocol requirements.

func (*Bor) VerifyUncles

func (c *Bor) VerifyUncles(_ consensus.ChainReader, block *types.Block) error

VerifyUncles implements consensus.Engine, always returning an error for any uncles as this consensus mechanism doesn't permit uncles.

type GenesisContract

type GenesisContract interface {
	CommitState(event *clerk.EventRecordWithTime, state *state.StateDB, header *types.Header, chCtx statefull.ChainContext) (uint64, error)
	LastStateId(state *state.StateDB, number uint64, hash common.Hash) (*big.Int, error)
}

type IHeimdallClient

type IHeimdallClient interface {
	StateSyncEvents(ctx context.Context, fromID uint64, to int64) ([]*clerk.EventRecordWithTime, error)
	Span(ctx context.Context, spanID uint64) (*span.HeimdallSpan, error)
	FetchCheckpoint(ctx context.Context, number int64) (*checkpoint.Checkpoint, error)
	FetchCheckpointCount(ctx context.Context) (int64, error)
	Close()
}

type InvalidStateReceivedError

type InvalidStateReceivedError struct {
	Number      uint64
	LastStateID uint64
	To          *time.Time
	Event       *clerk.EventRecordWithTime
}

func (*InvalidStateReceivedError) Error

func (e *InvalidStateReceivedError) Error() string

type MaxCheckpointLengthExceededError

type MaxCheckpointLengthExceededError struct {
	Start uint64
	End   uint64
}

func (*MaxCheckpointLengthExceededError) Error

type MismatchingValidatorsError

type MismatchingValidatorsError struct {
	Number             uint64
	ValidatorSetSnap   []byte
	ValidatorSetHeader []byte
}

MismatchingValidatorsError is returned if a last block in sprint contains a list of validators different from the one that local node calculated

func (*MismatchingValidatorsError) Error

type MockGenesisContract

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

MockGenesisContract is a mock of GenesisContract interface.

func NewMockGenesisContract

func NewMockGenesisContract(ctrl *gomock.Controller) *MockGenesisContract

NewMockGenesisContract creates a new mock instance.

func (*MockGenesisContract) CommitState

CommitState mocks base method.

func (*MockGenesisContract) EXPECT

EXPECT returns an object that allows the caller to indicate expected use.

func (*MockGenesisContract) LastStateId

func (m *MockGenesisContract) LastStateId(arg0 *state.StateDB, arg1 uint64, arg2 common.Hash) (*big.Int, error)

LastStateId mocks base method.

type MockGenesisContractMockRecorder

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

MockGenesisContractMockRecorder is the mock recorder for MockGenesisContract.

func (*MockGenesisContractMockRecorder) CommitState

func (mr *MockGenesisContractMockRecorder) CommitState(arg0, arg1, arg2, arg3 interface{}) *gomock.Call

CommitState indicates an expected call of CommitState.

func (*MockGenesisContractMockRecorder) LastStateId

func (mr *MockGenesisContractMockRecorder) LastStateId(arg0, arg1, arg2 interface{}) *gomock.Call

LastStateId indicates an expected call of LastStateId.

type MockSpanner

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

MockSpanner is a mock of Spanner interface.

func NewMockSpanner

func NewMockSpanner(ctrl *gomock.Controller) *MockSpanner

NewMockSpanner creates a new mock instance.

func (*MockSpanner) CommitSpan

func (m *MockSpanner) CommitSpan(arg0 context.Context, arg1 span.HeimdallSpan, arg2 *state.StateDB, arg3 *types.Header, arg4 core.ChainContext) error

CommitSpan mocks base method.

func (*MockSpanner) EXPECT

func (m *MockSpanner) EXPECT() *MockSpannerMockRecorder

EXPECT returns an object that allows the caller to indicate expected use.

func (*MockSpanner) GetCurrentSpan

func (m *MockSpanner) GetCurrentSpan(arg0 context.Context, arg1 common.Hash) (*span.Span, error)

GetCurrentSpan mocks base method.

func (*MockSpanner) GetCurrentValidatorsByBlockNrOrHash

func (m *MockSpanner) GetCurrentValidatorsByBlockNrOrHash(arg0 context.Context, arg1 rpc.BlockNumberOrHash, arg2 uint64) ([]*valset.Validator, error)

GetCurrentValidatorsByBlockNrOrHash mocks base method.

func (*MockSpanner) GetCurrentValidatorsByHash

func (m *MockSpanner) GetCurrentValidatorsByHash(arg0 context.Context, arg1 common.Hash, arg2 uint64) ([]*valset.Validator, error)

GetCurrentValidatorsByHash mocks base method.

type MockSpannerMockRecorder

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

MockSpannerMockRecorder is the mock recorder for MockSpanner.

func (*MockSpannerMockRecorder) CommitSpan

func (mr *MockSpannerMockRecorder) CommitSpan(arg0, arg1, arg2, arg3, arg4 interface{}) *gomock.Call

CommitSpan indicates an expected call of CommitSpan.

func (*MockSpannerMockRecorder) GetCurrentSpan

func (mr *MockSpannerMockRecorder) GetCurrentSpan(arg0, arg1 interface{}) *gomock.Call

GetCurrentSpan indicates an expected call of GetCurrentSpan.

func (*MockSpannerMockRecorder) GetCurrentValidatorsByBlockNrOrHash

func (mr *MockSpannerMockRecorder) GetCurrentValidatorsByBlockNrOrHash(arg0, arg1, arg2 interface{}) *gomock.Call

GetCurrentValidatorsByBlockNrOrHash indicates an expected call of GetCurrentValidatorsByBlockNrOrHash.

func (*MockSpannerMockRecorder) GetCurrentValidatorsByHash

func (mr *MockSpannerMockRecorder) GetCurrentValidatorsByHash(arg0, arg1, arg2 interface{}) *gomock.Call

GetCurrentValidatorsByHash indicates an expected call of GetCurrentValidatorsByHash.

type SignerFn

type SignerFn func(accounts.Account, string, []byte) ([]byte, error)

SignerFn is a signer callback function to request a header to be signed by a backing account.

type Snapshot

type Snapshot struct {
	Number       uint64                    `json:"number"`       // Block number where the snapshot was created
	Hash         common.Hash               `json:"hash"`         // Block hash where the snapshot was created
	ValidatorSet *valset.ValidatorSet      `json:"validatorSet"` // Validator set at this moment
	Recents      map[uint64]common.Address `json:"recents"`      // Set of recent signers for spam protections
	// contains filtered or unexported fields
}

Snapshot is the state of the authorization voting at a given point in time.

func (*Snapshot) GetSignerSuccessionNumber

func (s *Snapshot) GetSignerSuccessionNumber(signer common.Address) (int, error)

GetSignerSuccessionNumber returns the relative position of signer in terms of the in-turn proposer

type Spanner

type Spanner interface {
	GetCurrentSpan(ctx context.Context, headerHash common.Hash) (*span.Span, error)
	GetCurrentValidatorsByHash(ctx context.Context, headerHash common.Hash, blockNumber uint64) ([]*valset.Validator, error)
	GetCurrentValidatorsByBlockNrOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash, blockNumber uint64) ([]*valset.Validator, error)
	CommitSpan(ctx context.Context, heimdallSpan span.HeimdallSpan, state *state.StateDB, header *types.Header, chainContext core.ChainContext) error
}

type UnauthorizedProposerError

type UnauthorizedProposerError struct {
	Number   uint64
	Proposer []byte
}

UnauthorizedProposerError is returned if a header is [being] signed by an unauthorized entity.

func (*UnauthorizedProposerError) Error

func (e *UnauthorizedProposerError) Error() string

type UnauthorizedSignerError

type UnauthorizedSignerError struct {
	Number uint64
	Signer []byte
}

UnauthorizedSignerError is returned if a header is [being] signed by an unauthorized entity.

func (*UnauthorizedSignerError) Error

func (e *UnauthorizedSignerError) Error() string

type WrongDifficultyError

type WrongDifficultyError struct {
	Number   uint64
	Expected uint64
	Actual   uint64
	Signer   []byte
}

WrongDifficultyError is returned if the difficulty of a block doesn't match the turn of the signer.

func (*WrongDifficultyError) Error

func (e *WrongDifficultyError) Error() string

Directories

Path Synopsis
Package api is a generated GoMock package.
Package api is a generated GoMock package.

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