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feat(types): add Fulu cell dissemination SSZ types #284

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feat(types): add Fulu cell dissemination SSZ types #284

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be72e84
feat(types): add Fulu cell dissemination SSZ types
lodekeeper-z Mar 27, 2026
07800e0
feat(types): add DataColumnsByRootIdentifier for req/resp
lodekeeper-z Mar 27, 2026
20e63e3
style: address review comments on fulu cell dissemination types
lodekeeper-z Mar 27, 2026
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34 changes: 33 additions & 1 deletion src/consensus_types/fulu.zig
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Original file line number Diff line number Diff line change
Expand Up @@ -92,7 +92,10 @@ pub const DataColumnSidecar = ssz.VariableContainerType(struct {
kzg_commitments: ssz.FixedListType(p.KZGCommitment, preset.MAX_BLOB_COMMITMENTS_PER_BLOCK),
kzg_proofs: ssz.FixedListType(p.KZGProof, preset.MAX_BLOB_COMMITMENTS_PER_BLOCK),
signed_block_header: SignedBeaconBlockHeader,
kzg_commitments_inclusion_proof: ssz.FixedVectorType(p.Bytes32, preset.KZG_COMMITMENTS_INCLUSION_PROOF_DEPTH),
kzg_commitments_inclusion_proof: ssz.FixedVectorType(
p.Bytes32,
preset.KZG_COMMITMENTS_INCLUSION_PROOF_DEPTH,
),
});

pub const MatrixEntry = ssz.FixedContainerType(struct {
Expand All @@ -102,6 +105,35 @@ pub const MatrixEntry = ssz.FixedContainerType(struct {
row_index: RowIndex,
});

// Networking request/response identifiers
pub const DataColumnsByRootIdentifier = ssz.VariableContainerType(struct {
block_root: p.Root,
columns: ssz.FixedListType(ColumnIndex, @import("preset").NUMBER_OF_COLUMNS),
});

// Defines types for cell dissemination (consensus-specs #4558).
pub const PartialDataColumnSidecar = ssz.VariableContainerType(struct {
cells_present_bitmap: ssz.BitListType(preset.MAX_BLOB_COMMITMENTS_PER_BLOCK),
partial_column: ssz.FixedListType(Cell, preset.MAX_BLOB_COMMITMENTS_PER_BLOCK),
kzg_proofs: ssz.FixedListType(p.KZGProof, preset.MAX_BLOB_COMMITMENTS_PER_BLOCK),
// The header is optional and is only sent on eager pushes.
header: ssz.VariableListType(PartialDataColumnHeader, 1),
});

pub const PartialDataColumnPartsMetadata = ssz.VariableContainerType(struct {
available: ssz.BitListType(preset.MAX_BLOB_COMMITMENTS_PER_BLOCK),
requests: ssz.BitListType(preset.MAX_BLOB_COMMITMENTS_PER_BLOCK),
});

pub const PartialDataColumnHeader = ssz.VariableContainerType(struct {
kzg_commitments: ssz.FixedListType(p.KZGCommitment, preset.MAX_BLOB_COMMITMENTS_PER_BLOCK),
signed_block_header: SignedBeaconBlockHeader,
kzg_commitments_inclusion_proof: ssz.FixedVectorType(
p.Bytes32,
preset.KZG_COMMITMENTS_INCLUSION_PROOF_DEPTH,
),
});

// Light client types
pub const LightClientHeader = electra.LightClientHeader;
pub const LightClientBootstrap = electra.LightClientBootstrap;
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