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check L2Block hash on closed batch during sync from TrustedNode (#3390)
* check L2Block hash on closed batch during sync from TrustedNode * update config documentation
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63 changes: 63 additions & 0 deletions
63
synchronizer/l2_sync/l2_shared/post_closed_batch_check_l2block.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| package l2_shared | ||
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|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "math/big" | ||
|
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| "github.com/0xPolygonHermez/zkevm-node/log" | ||
| "github.com/0xPolygonHermez/zkevm-node/state" | ||
| "github.com/jackc/pgx/v4" | ||
| ) | ||
|
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| // Implements PostClosedBatchChecker | ||
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| type statePostClosedBatchCheckL2Block interface { | ||
| GetLastL2BlockByBatchNumber(ctx context.Context, batchNumber uint64, dbTx pgx.Tx) (*state.L2Block, error) | ||
| } | ||
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| // PostClosedBatchCheckL2Block is a struct that implements the PostClosedBatchChecker interface and check the las L2Block hash on close batch | ||
| type PostClosedBatchCheckL2Block struct { | ||
| state statePostClosedBatchCheckL2Block | ||
| } | ||
|
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| // NewPostClosedBatchCheckL2Block creates a new PostClosedBatchCheckL2Block | ||
| func NewPostClosedBatchCheckL2Block(state statePostClosedBatchCheckL2Block) *PostClosedBatchCheckL2Block { | ||
| return &PostClosedBatchCheckL2Block{ | ||
| state: state, | ||
| } | ||
| } | ||
|
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| // CheckPostClosedBatch checks the last L2Block hash on close batch | ||
| func (p *PostClosedBatchCheckL2Block) CheckPostClosedBatch(ctx context.Context, processData ProcessData, dbTx pgx.Tx) error { | ||
| if processData.TrustedBatch == nil { | ||
| log.Warnf("%s trusted batch is nil", processData.DebugPrefix) | ||
| return nil | ||
| } | ||
| if len(processData.TrustedBatch.Blocks) == 0 { | ||
| log.Infof("%s trusted batch have no Blocks, so nothing to check", processData.DebugPrefix) | ||
| return nil | ||
| } | ||
|
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| // Get last L2Block from the database | ||
| statelastL2Block, err := p.state.GetLastL2BlockByBatchNumber(ctx, processData.BatchNumber, dbTx) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if statelastL2Block == nil { | ||
| return fmt.Errorf("last L2Block in the database is nil") | ||
| } | ||
| trustedLastL2Block := processData.TrustedBatch.Blocks[len(processData.TrustedBatch.Blocks)-1].Block | ||
| log.Info(trustedLastL2Block) | ||
| if statelastL2Block.Number().Cmp(big.NewInt(int64(trustedLastL2Block.Number))) != 0 { | ||
| return fmt.Errorf("last L2Block in the database %s and the trusted batch %d are different", statelastL2Block.Number().String(), trustedLastL2Block.Number) | ||
| } | ||
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| if statelastL2Block.Hash() != *trustedLastL2Block.Hash { | ||
| return fmt.Errorf("last L2Block %s in the database %s and the trusted batch %s are different", statelastL2Block.Number().String(), statelastL2Block.Hash().String(), trustedLastL2Block.Hash.String()) | ||
| } | ||
| log.Infof("%s last L2Block in the database %s and the trusted batch %s are the same", processData.DebugPrefix, statelastL2Block.Number().String(), trustedLastL2Block.Number) | ||
| // Compare the two blocks | ||
|
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||
| return nil | ||
| } |
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