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clean up validate beacon block (#13517)

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This commit is contained in:
Nishant Das 2024-01-24 13:48:15 +08:00 committed by GitHub
parent f4ab2ca79f
commit a2892b1ed5
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GPG Key ID: B5690EEEBB952194
1 changed files with 37 additions and 26 deletions
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63
beacon-chain/sync/validate_beacon_blocks.go
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@ -241,36 +241,11 @@ func (s *Service) validateBeaconBlock(ctx context.Context, blk interfaces.ReadOn
return err
}
if !s.cfg.chain.InForkchoice(blk.Block().ParentRoot()) {
s.setBadBlock(ctx, blockRoot)
return blockchain.ErrNotDescendantOfFinalized
}
parentState, err := s.cfg.stateGen.StateByRoot(ctx, blk.Block().ParentRoot())
parentState, err := s.validatePhase0Block(ctx, blk, blockRoot)
if err != nil {
return err
}
if err := blocks.VerifyBlockSignatureUsingCurrentFork(parentState, blk); err != nil {
s.setBadBlock(ctx, blockRoot)
return err
}
// In the event the block is more than an epoch ahead from its
// parent state, we have to advance the state forward.
parentRoot := blk.Block().ParentRoot()
parentState, err = transition.ProcessSlotsUsingNextSlotCache(ctx, parentState, parentRoot[:], blk.Block().Slot())
if err != nil {
return err
}
idx, err := helpers.BeaconProposerIndex(ctx, parentState)
if err != nil {
return err
}
if blk.Block().ProposerIndex() != idx {
s.setBadBlock(ctx, blockRoot)
return errors.New("incorrect proposer index")
}
if err = s.validateBellatrixBeaconBlock(ctx, parentState, blk.Block()); err != nil {
if errors.Is(err, ErrOptimisticParent) {
return err
@ -282,6 +257,42 @@ func (s *Service) validateBeaconBlock(ctx context.Context, blk interfaces.ReadOn
return nil
}
// Validates beacon block according to phase 0 validity conditions.
// - Checks that the parent is in our forkchoice tree.
// - Validates that the proposer signature is valid.
// - Validates that the proposer index is valid.
func (s *Service) validatePhase0Block(ctx context.Context, blk interfaces.ReadOnlySignedBeaconBlock, blockRoot [32]byte) (state.BeaconState, error) {
if !s.cfg.chain.InForkchoice(blk.Block().ParentRoot()) {
s.setBadBlock(ctx, blockRoot)
return nil, blockchain.ErrNotDescendantOfFinalized
}
parentState, err := s.cfg.stateGen.StateByRoot(ctx, blk.Block().ParentRoot())
if err != nil {
return nil, err
}
if err := blocks.VerifyBlockSignatureUsingCurrentFork(parentState, blk); err != nil {
return nil, err
}
// In the event the block is more than an epoch ahead from its
// parent state, we have to advance the state forward.
parentRoot := blk.Block().ParentRoot()
parentState, err = transition.ProcessSlotsUsingNextSlotCache(ctx, parentState, parentRoot[:], blk.Block().Slot())
if err != nil {
return nil, err
}
idx, err := helpers.BeaconProposerIndex(ctx, parentState)
if err != nil {
return nil, err
}
if blk.Block().ProposerIndex() != idx {
s.setBadBlock(ctx, blockRoot)
return nil, errors.New("incorrect proposer index")
}
return parentState, nil
}
func validateDenebBeaconBlock(blk interfaces.ReadOnlyBeaconBlock) error {
if blk.Version() < version.Deneb {
return nil