Vote extensions: base implementation #9836

sergio-mena · 2022-12-05T10:13:15Z

This PR is a mechanical backport of the first part of vote extensions from the v0.36.x branch.

This includes:

This PR is best reviewed by comparing each of these backported PRs to the corresponding commit in this PR (diff of diffs). The most important one is #8141 (the previous ones are the first implementation made in 2021 which predated the ABCI++ specification).

N.B: The changelog will be updated once branch feature/abci++vef is merged back into main

PR checklist

Tests written/updated, or no tests needed
CHANGELOG_PENDING.md updated, or no changelog entry needed
Updated relevant documentation (docs/) and code comments, or no
documentation updates needed

* add proto, add boilerplates * add canonical * fix tests * add vote signing test * Update internal/consensus/msgs_test.go * modify state execution in progress * add extension signing * VoteExtension -> ExtendVote * apply review * update data structures * Add comments * Apply suggestions from code review Co-authored-by: Aleksandr Bezobchuk <alexanderbez@users.noreply.github.com> * *Signed -> *ToSign * add Vote to RequestExtendVote * apply reviews * Apply suggestions from code review Co-authored-by: Dev Ojha <ValarDragon@users.noreply.github.com> Co-authored-by: Aleksandr Bezobchuk <alexanderbez@users.noreply.github.com> * fix typo, modify proto Co-authored-by: Aleksandr Bezobchuk <alexanderbez@users.noreply.github.com> Co-authored-by: Dev Ojha <ValarDragon@users.noreply.github.com>

* add proto, add boilerplates * add canonical * fix tests * add vote signing test * Update internal/consensus/msgs_test.go * modify state execution in progress * add extension signing * add extension signing * VoteExtension -> ExtendVote * modify state execution in progress * add extension signing * verify in progress * modify CommitSig * fix test * apply review * update data structures * Apply suggestions from code review * Add comments * fix test * VoteExtensionSigned => VoteExtensionToSigned * Apply suggestions from code review Co-authored-by: Aleksandr Bezobchuk <alexanderbez@users.noreply.github.com> * *Signed -> *ToSign * add Vote to RequestExtendVote * add example VoteExtension * apply reviews * fix vote * Apply suggestions from code review Co-authored-by: Dev Ojha <ValarDragon@users.noreply.github.com> Co-authored-by: Aleksandr Bezobchuk <alexanderbez@users.noreply.github.com> * fix typo, modify proto * add abcipp_kvstore.go * add extension test * fix test * fix test * fix test * fit lint * uncomment test * refactor test in progress * gofmt * apply review * fix lint Co-authored-by: Aleksandr Bezobchuk <alexanderbez@users.noreply.github.com> Co-authored-by: Dev Ojha <ValarDragon@users.noreply.github.com>

@creachadair

…try] (#7821) * PrepareProposal-VoteExtension integration (#6915) * make proto-gen * Fix protobuf crash in e2e nightly tests * Update types/vote.go Co-authored-by: M. J. Fromberger <fromberger@interchain.io> * Addressed @creachadair's comments Co-authored-by: mconcat <monoidconcat@gmail.com> Co-authored-by: M. J. Fromberger <fromberger@interchain.io>

* Changed the spec text to agreed VoteExtension solution * Revert "Removed protobufs related to vote extensions" This reverts commit 4566f1e. * Changes to ABCI protocol buffers * Update spec/core/data_structures.md Co-authored-by: M. J. Fromberger <fromberger@interchain.io> * Update spec/core/data_structures.md Co-authored-by: M. J. Fromberger <fromberger@interchain.io> * Fix dangling link in ABCI++ readme * Addressed comments Co-authored-by: M. J. Fromberger <fromberger@interchain.io>

…ons (#8141) * Refactor so building and linting works This is the first step towards implementing vote extensions: generating the relevant proto stubs and getting the build and linter to pass. Signed-off-by: Thane Thomson <connect@thanethomson.com> * Fix typo Signed-off-by: Thane Thomson <connect@thanethomson.com> * Better describe method given vote extensions Signed-off-by: Thane Thomson <connect@thanethomson.com> * Fix types tests Signed-off-by: Thane Thomson <connect@thanethomson.com> * Move CanonicalVoteExtension to canonical types proto defs Signed-off-by: Thane Thomson <connect@thanethomson.com> * Regenerate protos including latest PBTS synchrony params update Signed-off-by: Thane Thomson <connect@thanethomson.com> * Inject vote extensions into proposal Signed-off-by: Thane Thomson <connect@thanethomson.com> * Thread vote extensions through code and fix tests Signed-off-by: Thane Thomson <connect@thanethomson.com> * Remove extraneous empty value initialization Signed-off-by: Thane Thomson <connect@thanethomson.com> * Fix lint Signed-off-by: Thane Thomson <connect@thanethomson.com> * Fix missing VerifyVoteExtension request data Signed-off-by: Thane Thomson <connect@thanethomson.com> * Explicitly ensure length > 0 to sign vote extension Signed-off-by: Thane Thomson <connect@thanethomson.com> * Explicitly ensure length > 0 to sign vote extension Signed-off-by: Thane Thomson <connect@thanethomson.com> * Remove extraneous comment Signed-off-by: Thane Thomson <connect@thanethomson.com> * Update privval/file.go Co-authored-by: M. J. Fromberger <fromberger@interchain.io> * Update types/vote_test.go Co-authored-by: M. J. Fromberger <fromberger@interchain.io> * Format Signed-off-by: Thane Thomson <connect@thanethomson.com> * Fix ABCI proto generation scripts for Linux Signed-off-by: Thane Thomson <connect@thanethomson.com> * Sync intermediate and goal protos Signed-off-by: Thane Thomson <connect@thanethomson.com> * Update internal/consensus/common_test.go Co-authored-by: Sergio Mena <sergio@informal.systems> * Use dummy value with clearer meaning Signed-off-by: Thane Thomson <connect@thanethomson.com> * Rewrite loop for clarity Signed-off-by: Thane Thomson <connect@thanethomson.com> * Panic on ABCI++ method call failure Signed-off-by: Thane Thomson <connect@thanethomson.com> * Add strong correctness guarantees when constructing extended commit info for ABCI++ Signed-off-by: Thane Thomson <connect@thanethomson.com> * Add strong guarantee in extendedCommitInfo that the number of votes corresponds Signed-off-by: Thane Thomson <connect@thanethomson.com> * Make extendedCommitInfo function more robust At first extendedCommitInfo expected votes to be in the same order as their corresponding validators in the supplied CommitInfo struct, but this proved to be rather difficult since when a validator set's loaded from state it's first sorted by voting power and then by address. Instead of sorting the votes in the same way, this approach simply maps votes to their corresponding validator's address prior to constructing the extended commit info. This way it's easy to look up the corresponding vote and we don't need to care about vote order. Signed-off-by: Thane Thomson <connect@thanethomson.com> * Remove extraneous validator address assignment Signed-off-by: Thane Thomson <connect@thanethomson.com> * Sign over canonical vote extension Signed-off-by: Thane Thomson <connect@thanethomson.com> * Validate vote extension signature against canonical vote extension Signed-off-by: Thane Thomson <connect@thanethomson.com> * Update privval tests for more meaningful dummy value Signed-off-by: Thane Thomson <connect@thanethomson.com> * Add vote extension capability to E2E test app Signed-off-by: Thane Thomson <connect@thanethomson.com> * Disable lint for weak RNG usage for test app Signed-off-by: Thane Thomson <connect@thanethomson.com> * Use parseVoteExtension instead of custom parsing in PrepareProposal Signed-off-by: Thane Thomson <connect@thanethomson.com> * Only include extension if we have received txs It's unclear at this point why this is necessary to ensure that the application's local app_hash matches that committed in the previous block. Signed-off-by: Thane Thomson <connect@thanethomson.com> * Require app_hash from app to match that from last block Signed-off-by: Thane Thomson <connect@thanethomson.com> * Add contrived (possibly flaky) test to check that vote extensions code works Signed-off-by: Thane Thomson <connect@thanethomson.com> * Remove workaround for problem now solved by #8229 Signed-off-by: Thane Thomson <connect@thanethomson.com> * add tests for vote extension cases * Fix spelling mistake to appease linter Signed-off-by: Thane Thomson <connect@thanethomson.com> * Collapse redundant if statement Signed-off-by: Thane Thomson <connect@thanethomson.com> * Formatting Signed-off-by: Thane Thomson <connect@thanethomson.com> * Always expect an extension signature, regardless of whether an extension is present Signed-off-by: Thane Thomson <connect@thanethomson.com> * Votes constructed from commits cannot include extensions or signatures Signed-off-by: Thane Thomson <connect@thanethomson.com> * Pass through vote extension in test helpers Signed-off-by: Thane Thomson <connect@thanethomson.com> * Temporarily disable vote extension signature requirement Signed-off-by: Thane Thomson <connect@thanethomson.com> * Expand on vote equality test errors for clarity Signed-off-by: Thane Thomson <connect@thanethomson.com> * Expand on vote matching error messages in testing Signed-off-by: Thane Thomson <connect@thanethomson.com> * Allow for selective subscription by vote type This is an attempt to fix the intermittently failing `TestPrepareProposalReceivesVoteExtensions` test in the internal consensus package. Occasionally we get prevote messages via the subscription channel, and we're not interested in those. This change allows us to specify what types of votes we're interested in (i.e. precommits) and discard the rest. Signed-off-by: Thane Thomson <connect@thanethomson.com> * Read lock consensus state mutex in test helper to avoid data race Signed-off-by: Thane Thomson <connect@thanethomson.com> * Revert BlockIDFlag parameter in node test Signed-off-by: Thane Thomson <connect@thanethomson.com> * Perform additional check in ProcessProposal for special txs generated by vote extensions Signed-off-by: Thane Thomson <connect@thanethomson.com> * e2e: check that our added tx does not cause all txs to exceed req.MaxTxBytes Signed-off-by: Thane Thomson <connect@thanethomson.com> * Only set vote extension signatures when signing is successful Signed-off-by: Thane Thomson <connect@thanethomson.com> * Remove channel capacity constraint in test helper to avoid missing messages Signed-off-by: Thane Thomson <connect@thanethomson.com> * Add TODO to always require extension signatures in vote validation Signed-off-by: Thane Thomson <connect@thanethomson.com> * e2e: reject vote extensions if the request height does not match what we expect Signed-off-by: Thane Thomson <connect@thanethomson.com> * types: remove extraneous call to voteWithoutExtension in test Signed-off-by: Thane Thomson <connect@thanethomson.com> * Remove unnecessary address parameter from CanonicalVoteExtension Signed-off-by: Thane Thomson <connect@thanethomson.com> * privval: change test vote type to precommit since we use an extension Signed-off-by: Thane Thomson <connect@thanethomson.com> * privval: update signing logic to cater for vote extensions Signed-off-by: Thane Thomson <connect@thanethomson.com> * proto: update field descriptions for vote message Signed-off-by: Thane Thomson <connect@thanethomson.com> * proto: update field description for vote extension sig in vote message Signed-off-by: Thane Thomson <connect@thanethomson.com> * proto/types: use fixed-length 64-bit integers for rounds in CanonicalVoteExtension Signed-off-by: Thane Thomson <connect@thanethomson.com> * consensus: fix flaky TestPrepareProposalReceivesVoteExtensions Signed-off-by: Thane Thomson <connect@thanethomson.com> * consensus: remove previously added test helper functionality Signed-off-by: Thane Thomson <connect@thanethomson.com> * e2e: add error logs when we get an unexpected height in ExtendVote or VerifyVoteExtension requests Signed-off-by: Thane Thomson <connect@thanethomson.com> * node_test: get validator addresses from privvals Signed-off-by: Thane Thomson <connect@thanethomson.com> * privval/file_test: optimize filepv creation in tests Signed-off-by: Thane Thomson <connect@thanethomson.com> * privval: add test to check that vote extensions are always signed Signed-off-by: Thane Thomson <connect@thanethomson.com> * Add a script to check documentation for ToC entries. (#8356) This script verifies that each document in the docs and architecture directory has a corresponding table-of-contents entry in its README file. It can be run manually from the command line. - Hook up this script to run in CI (optional workflow). - Update ADR ToC to include missing entries this script found. * build(deps): Bump async from 2.6.3 to 2.6.4 in /docs (#8357) Bumps [async](https://github.com/caolan/async) from 2.6.3 to 2.6.4. - [Release notes](https://github.com/caolan/async/releases) - [Changelog](https://github.com/caolan/async/blob/v2.6.4/CHANGELOG.md) - [Commits](caolan/async@v2.6.3...v2.6.4) --- updated-dependencies: - dependency-name: async dependency-type: indirect ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * privval/file_test: reset vote ext sig before signing Signed-off-by: Thane Thomson <connect@thanethomson.com> Co-authored-by: M. J. Fromberger <fromberger@interchain.io> Co-authored-by: Sergio Mena <sergio@informal.systems> Co-authored-by: William Banfield <wbanfield@gmail.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

williambanfield

Reviewed with the understanding that #9396 is also going to be cherry-picked, this looks all pretty simple and correct.

williambanfield · 2022-12-05T18:36:53Z

consensus/msgs_test.go

@@ -347,6 +347,7 @@ func TestConsMsgsVectors(t *testing.T) {
 		Timestamp:        date,
 		Type:             tmproto.PrecommitType,
 		BlockID:          bi,
+		Extension:        []byte("extension"),


I'm realizing we should also include a vote without an extension to this test to ensure that the old bytes are still produced when the extension is absent.

Just checked and this is not done in any of the upcoming cherry-picked commits. Introducing it now

consensus/state_test.go

williambanfield · 2022-12-05T19:06:26Z

test/e2e/app/app.go

+			Status: abci.ResponseVerifyVoteExtension_ACCEPT,
+		}, nil
+	}
+	if req.Height != int64(app.state.Height)+1 {


Is this updated later? It seems wrong to me to have the app REJECT in this case.

Thanks for catching this! Just checked and this stays this way after upcoming patches.
Turning this into a panic here

sergio-mena · 2022-12-06T09:10:23Z

Reviewed with the understanding that #9396 is also going to be cherry-picked, this looks all pretty simple and correct.

Yes, all bullet points in #9396 are to be cherry-picked

Co-authored-by: William Banfield <4561443+williambanfield@users.noreply.github.com>

…ntation

mconcat and others added 10 commits November 30, 2022 21:19

Fix cherry-picks

c91b578

make proto-gen

156da4b

make mockery

ee3048f

fix build

c3cb29c

All units tests passing

2aff978

sergio-mena requested a review from ebuchman as a code owner December 5, 2022 10:13

sergio-mena requested a review from a team December 5, 2022 10:13

sergio-mena requested review from adizere and lasarojc as code owners December 5, 2022 10:13

linter error

3f3044c

sergio-mena self-assigned this Dec 5, 2022

williambanfield approved these changes Dec 5, 2022

View reviewed changes

sergio-mena and others added 4 commits December 6, 2022 10:24

Update consensus/state_test.go

12febbe

Co-authored-by: William Banfield <4561443+williambanfield@users.noreply.github.com>

Addressed @williambanfield's comments

d81ae54

Merge commit '1d911818e' into sergio/9835-vote-extension-base-impleme…

270551e

…ntation

Go, not C!

b604310

sergio-mena merged commit 67d3ce0 into feature/abci++vef Dec 6, 2022

sergio-mena deleted the sergio/9835-vote-extension-base-implementation branch December 6, 2022 20:03

sergio-mena mentioned this pull request Dec 6, 2022

Sync vote extensions with Spec #9835

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Vote extensions: base implementation #9836

Vote extensions: base implementation #9836

sergio-mena commented Dec 5, 2022 •

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sergio-mena commented Dec 6, 2022

Vote extensions: base implementation #9836

Vote extensions: base implementation #9836

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sergio-mena commented Dec 5, 2022 •

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