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EIP 7742 implementation #7518

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EIP 7742 implementation #7518

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yerke26
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@yerke26 yerke26 commented Sep 30, 2024

Resolves #7526

Changes

removed MAX_BLOB_GAS_PER_BLOCK, TARGET_BLOB_GAS_PER_BLOCK
Get target_blob_count, max_blob_count from Engine Api
added target_blob_count, max_blob_count to ExecutionPayload
added target_blob_count, max_blob_count to BlockHeader
removed verifications related to MAX_BLOB_GAS_PER_BLOCK
used target_blob_count * Eip4844Constants.GasPerBlob instead of TARGET_BLOB_GAS_PER_BLOCK

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@yerke26 yerke26 requested a review from rubo as a code owner September 30, 2024 14:33
@yerke26 yerke26 marked this pull request as draft September 30, 2024 14:33
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@MarekM25 MarekM25 left a comment

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very quick check: no HeaderDecoder changes?

@yerke26 yerke26 changed the title Get target_blob_count, max_blob_count from Engine Api EIP 7742 implementation Oct 1, 2024
@yerke26 yerke26 marked this pull request as ready for review October 2, 2024 10:15
# Conflicts:
#	src/Nethermind/Nethermind.JsonRpc/Modules/Eth/FeeHistory/FeeHistoryOracle.cs
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Red flag, don't see the change in PrepareBlockForProcessing in BlockchainProcessor. Perhaps, check how other fields from header are used

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@LukaszRozmej LukaszRozmej left a comment

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Apart of MaxBlobCount confusion I am fine with the PR

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@ak88 ak88 left a comment

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what about the new way to calculate excess blob gas that the EIP mentions?
https://eips.ethereum.org/EIPS/eip-7742#block-processing


if (!spec.IsEip7742Enabled || payloadAttributes?.MaxBlobCount is not null)
{
SelectBlobTransactions(blobTransactions, parent, spec, selectedBlobTxs);
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You dont pass the PayloadAttributes

@@ -119,7 +123,7 @@ private static IEnumerable<Transaction> PickBlobTxsBetterThanCurrentTx(ArrayPool
}
}

private void SelectBlobTransactions(IEnumerable<Transaction> blobTransactions, BlockHeader parent, IReleaseSpec spec, ArrayPoolList<Transaction> selectedBlobTxs)
private void SelectBlobTransactions(IEnumerable<Transaction> blobTransactions, BlockHeader parent, IReleaseSpec spec, ArrayPoolList<Transaction> selectedBlobTxs, PayloadAttributes? payloadAttributes = null)
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why is PayloadAttributes optional?

# Conflicts:
#	src/Nethermind/Nethermind.Merge.AuRa.Test/AuRaMergeEngineModuleTests.cs
#	src/Nethermind/Nethermind.Merge.Plugin.Test/EngineModuleTests.V4.cs
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Implement EIP-7442 Uncouple blob count between CL and EL
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