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https://gitlab.com/pulsechaincom/prysm-pulse.git
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ec13d52f03
* Use forkchoice HasNode to check if a block is consistent with finality * interface fix * fix tests * remove VerifyFinalizedBlkDescendant * fix validateBeaconBlock
96 lines
3.9 KiB
Go
96 lines
3.9 KiB
Go
package blockchain
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import "github.com/pkg/errors"
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var (
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// ErrInvalidPayload is returned when the payload is invalid
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ErrInvalidPayload = invalidBlock{error: errors.New("received an INVALID payload from execution engine")}
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// ErrInvalidBlockHashPayloadStatus is returned when the payload has invalid block hash.
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ErrInvalidBlockHashPayloadStatus = invalidBlock{error: errors.New("received an INVALID_BLOCK_HASH payload from execution engine")}
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// ErrUndefinedExecutionEngineError is returned when the execution engine returns an error that is not defined
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ErrUndefinedExecutionEngineError = errors.New("received an undefined execution engine error")
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// errNilFinalizedInStore is returned when a nil finalized checkpt is returned from store.
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errNilFinalizedInStore = errors.New("nil finalized checkpoint returned from store")
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// errNilFinalizedCheckpoint is returned when a nil finalized checkpt is returned from a state.
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errNilFinalizedCheckpoint = errors.New("nil finalized checkpoint returned from state")
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// errNilJustifiedCheckpoint is returned when a nil justified checkpt is returned from a state.
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errNilJustifiedCheckpoint = errors.New("nil justified checkpoint returned from state")
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// errInvalidNilSummary is returned when a nil summary is returned from the DB.
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errInvalidNilSummary = errors.New("nil summary returned from the DB")
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// errWrongBlockCount is returned when the wrong number of blocks or block roots is used
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errWrongBlockCount = errors.New("wrong number of blocks or block roots")
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// errBlockNotFoundInCacheOrDB is returned when a block is not found in the cache or DB.
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errBlockNotFoundInCacheOrDB = errors.New("block not found in cache or db")
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// errWSBlockNotFound is returned when a block is not found in the WS cache or DB.
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errWSBlockNotFound = errors.New("weak subjectivity root not found in db")
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// errWSBlockNotFoundInEpoch is returned when a block is not found in the WS cache or DB within epoch.
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errWSBlockNotFoundInEpoch = errors.New("weak subjectivity root not found in db within epoch")
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// errNotDescendantOfFinalized is returned when a block is not a descendant of the finalized checkpoint
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ErrNotDescendantOfFinalized = invalidBlock{error: errors.New("not descendant of finalized checkpoint")}
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)
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// An invalid block is the block that fails state transition based on the core protocol rules.
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// The beacon node shall not be accepting nor building blocks that branch off from an invalid block.
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// Some examples of invalid blocks are:
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// The block violates state transition rules.
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// The block is deemed invalid according to execution layer client.
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// The block violates certain fork choice rules (before finalized slot, not finalized ancestor)
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type invalidBlock struct {
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invalidAncestorRoots [][32]byte
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error
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root [32]byte
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}
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type invalidBlockError interface {
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Error() string
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InvalidAncestorRoots() [][32]byte
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BlockRoot() [32]byte
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}
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// BlockRoot returns the invalid block root.
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func (e invalidBlock) BlockRoot() [32]byte {
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return e.root
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}
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// InvalidAncestorRoots returns an optional list of invalid roots of the invalid block which leads up last valid root.
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func (e invalidBlock) InvalidAncestorRoots() [][32]byte {
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return e.invalidAncestorRoots
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}
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// IsInvalidBlock returns true if the error has `invalidBlock`.
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func IsInvalidBlock(e error) bool {
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if e == nil {
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return false
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}
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_, ok := e.(invalidBlockError)
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if !ok {
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return IsInvalidBlock(errors.Unwrap(e))
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}
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return true
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}
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// InvalidBlockRoot returns the invalid block root. If the error
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// doesn't have an invalid blockroot. [32]byte{} is returned.
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func InvalidBlockRoot(e error) [32]byte {
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if e == nil {
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return [32]byte{}
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}
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d, ok := e.(invalidBlockError)
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if !ok {
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return [32]byte{}
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}
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return d.BlockRoot()
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}
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// InvalidAncestorRoots returns a list of invalid roots up to last valid root.
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func InvalidAncestorRoots(e error) [][32]byte {
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if e == nil {
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return [][32]byte{}
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}
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d, ok := e.(invalidBlockError)
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if !ok {
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return [][32]byte{}
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}
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return d.InvalidAncestorRoots()
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}
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