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Handle self-building and use builder domain for envelopes

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This commit is contained in:
Michael Sproul
2026-01-19 14:46:02 +11:00
parent 2985ede062
commit 9e365e535f
5 changed files with 50 additions and 19 deletions
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14
beacon_node/beacon_chain/src/envelope_verification.rs
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@@ -263,10 +263,10 @@ impl<T: BeaconChainTypes> GossipVerifiedEnvelope<T> {
}
// builder index matches committed bid
if envelope.builder_index != execution_bid.builder_index {
if envelope.raw_builder_index() != execution_bid.builder_index {
return Err(EnvelopeError::BuilderIndexMismatch {
committed_bid: execution_bid.builder_index,
envelope: envelope.builder_index,
envelope: envelope.raw_builder_index(),
});
}
@@ -308,13 +308,15 @@ impl<T: BeaconChainTypes> GossipVerifiedEnvelope<T> {
)?;
let fork = proposer.fork;
// True builder index accounting for self-building.
let proposer_index = parent_block.message().proposer_index();
let builder_index = envelope.builder_index(proposer_index);
let signature_is_valid = {
let pubkey_cache = chain.validator_pubkey_cache.read();
let builder_pubkey = pubkey_cache
.get(envelope.builder_index as usize)
.ok_or_else(|| EnvelopeError::UnknownValidator {
builder_index: envelope.builder_index,
})?;
.get(builder_index as usize)
.ok_or_else(|| EnvelopeError::UnknownValidator { builder_index })?;
signed_envelope.verify_signature(
builder_pubkey,
&fork,