Handle `ExecutionPayloadEnvelope` by hangleang · Pull Request #591 · grandinetech/grandine

hangleang · 2026-02-04T12:58:21Z

This PR include changes as follows:

Locally build payload envelope by proposer if no active builders or set via option
Request engine_getBlobsV2 once envelope receive if data is not
available
~~Reconstruct data column sidecars with payload envelope~~
Request payload envelopes from peers while syncing

~~please note that these changes is in alpha.1 version, will update according to alpha.2 in this separate PR #589~~

Tumas · 2026-03-17T12:36:05Z

@hangleang please rebase this on develop

hangleang · 2026-03-17T16:26:50Z

@hangleang please rebase this on develop

done!

signer/src/web3signer/types.rs

runtime/src/grandine_args.rs

Tumas · 2026-03-20T12:09:15Z

Could you open a PR to eth2_libp2p:main with the minimal changes needed to support this functionality? That way we can update the eth2_libp2p when this branch lands on develop. These changes will be adjusted (if needed) once Gloas support stabilises upstream in Lighthouse.

hangleang · 2026-03-20T13:00:02Z

Could you open a PR to eth2_libp2p:main with the minimal changes needed to support this functionality?

created a PR grandinetech/eth2_libp2p#23, also include 2 Povilas commits which didn't merge on main

Tumas · 2026-03-20T13:07:36Z

Could you open a PR to eth2_libp2p:main with the minimal changes needed to support this functionality?

created a PR grandinetech/eth2_libp2p#23, also include 2 Povilas commits which didn't merge on main

That's for payload attestations — we'll need those too, but they're out of scope for this PR. What we need here is a PR to eth2_libp2p that adds support for payload envelopes specifically.

hangleang · 2026-03-20T13:12:17Z

What we need here is a PR to eth2_libp2p that adds support for payload envelopes specifically.

here it is: grandinetech/eth2_libp2p#24

block_producer/src/block_producer.rs

http_api/src/standard.rs

Tumas · 2026-03-23T11:12:38Z

block_producer/src/block_producer.rs

+        // unless they choose to self-build, as favor or no active builders
+        let mut payload_with_data = None;
+        if self.beacon_state.post_gloas().is_none_or(|state| {
+            self.options.enable_local_payload_building


Note: It looks like that using --enable-local-payload-building flag not only enables but forces self-build. If this is the feature that we want, it should probably named --force-local-payload-building or --force-self-build

We can figure out the naming later

block_producer/src/block_producer.rs

fork_choice_control/src/tasks.rs

fork_choice_control/src/misc.rs

validator/src/validator.rs

fork_choice_control/src/mutator.rs

fork_choice_control/src/storage.rs

- Locally build payload envelope by proposer - Request `engine_getBlobsV2` once envelope receive if data is not available - Reconstruct data column sidecars with payload envelope - Request payload envelopes from peers while syncing

…ad-building`

Tumas · 2026-03-25T16:38:30Z

p2p/src/sync_manager.rs

+            // Note: Unlike blobs/columns which use serve_range checks, envelopes are needed
+            // for all Gloas slots (similar to blocks) for state transition
+            //TODO: confirm this from hangleang
+            if sync_mode.is_default() && config.phase_at_slot::<P>(start_slot) >= Phase::Gloas {


It should adjust start_slot based on Gloas start slot and not skip the whole batch. Example: if start_slot is gloas_start_slot - 1, it should back sync ExecutionPayloadEnvelopes from gloas_start_slot. Otherwise, it skips the whole batch potentially not back syncing payload envelopes from some of the first slots in Gloas.

Similar start_slot adjustment is performed in lines 381–387 for blobs.

Tumas · 2026-03-25T16:41:03Z

p2p/src/sync_manager.rs

+                // Request execution payload envelopes for Gloas-activated slots
+                // Note: Similar to blocks, envelopes are needed for all Gloas slots (not just serve range)
+                // This must be checked before serve range checks to ensure envelopes are always requested
+                if config.phase_at_slot::<P>(start_slot) >= Phase::Gloas {


similar issue here: batch should not be skipped if start_slot < Phase::Gloas, it should only be skipped if start_slot + count < Phase::Gloas, otherwise start_slot and count should be adjusted

both issues should be fixed at 8f47176

hangleang force-pushed the feature/payload-envelope branch 3 times, most recently from 4fb8c1f to c948fd5 Compare February 6, 2026 12:56

hangleang force-pushed the feature/payload-envelope branch from c948fd5 to 17eb854 Compare February 16, 2026 12:13

hangleang force-pushed the feature/payload-envelope branch from 17eb854 to b0cf339 Compare March 17, 2026 16:24

hangleang force-pushed the feature/payload-envelope branch 2 times, most recently from 28a1746 to f80a754 Compare March 19, 2026 11:41

Tumas reviewed Mar 19, 2026

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signer/src/web3signer/types.rs Show resolved Hide resolved

runtime/src/grandine_args.rs Outdated Show resolved Hide resolved

Tumas reviewed Mar 20, 2026

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block_producer/src/block_producer.rs Outdated Show resolved Hide resolved

http_api/src/standard.rs Show resolved Hide resolved

Tumas reviewed Mar 23, 2026

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hangleang added 4 commits March 24, 2026 14:12

Handle execution payload envelope

4cda9b9

- Locally build payload envelope by proposer - Request `engine_getBlobsV2` once envelope receive if data is not available - Reconstruct data column sidecars with payload envelope - Request payload envelopes from peers while syncing

Fallback to self build if no active builders

fec0b38

Rename CLI arg from --enable-payload-build to `--enable-local-paylo…

bb28a4b

…ad-building`

Add comment for web3signer builder message signing support

bc95350

hangleang force-pushed the feature/payload-envelope branch from c4f9fce to bc95350 Compare March 24, 2026 07:30

hangleang added 3 commits March 24, 2026 14:54

Apply Tumas suggestions

2e076a7

Add various fixes

9da0a76

Consistent check with should_build_payload

332014f

hangleang force-pushed the feature/payload-envelope branch from b195693 to 332014f Compare March 24, 2026 10:06

Emit event for own payload envelope

615f760

Tumas reviewed Mar 25, 2026

View reviewed changes

hangleang added 2 commits March 26, 2026 16:17

Adjust request range for payload envelopes if not full range request

8f47176

Remove unused import

1e6ec6e

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hangleang commented Feb 4, 2026 •

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